Create probe.yaml

Adding a new flag `--input-kafka-offset` for supporting consumes from Kafka by specified offset.

.github/dependabot.yaml

@@ -8,3 +8,14 @@ updates:
     pull-request-branch-name:
       # Separate sections of the branch name with a hyphen
       separator: "-"
+
+  - package-ecosystem: "gomod"
+    directory: "/"
+    schedule:
+      interval: "weekly"
+      
+  - package-ecosystem: "docker"
+    directory: "/"
+    schedule:
+      interval: "weekly"
+      

.github/workflows/ci-docker.yaml

@@ -8,13 +8,13 @@ jobs:
     steps:
       -
         name: "Checkout repository"
-        uses: actions/checkout@v2
+        uses: actions/checkout@v3
       -
         name: "Set up Docker Buildx"
-        uses: docker/setup-buildx-action@v1
+        uses: docker/setup-buildx-action@v2
       -
         name: "Cache Docker layers"
-        uses: actions/cache@v2
+        uses: actions/cache@v3.0.5
         with:
           path: /tmp/.buildx-cache
           key: ${{ runner.os }}-buildx-${{ github.sha }}
@@ -28,7 +28,7 @@ jobs:
           password: ${{ secrets.DOCKERHUB_TOKEN }}
       -
         name: "Build and push docker image"
-        uses: docker/build-push-action@v2
+        uses: docker/build-push-action@v3
         with:
           context: .
           push: true

.github/workflows/ci-test.yaml

@@ -4,7 +4,7 @@ jobs:
   test:
     strategy:
       matrix:
-        go-version: [1.15.x, 1.16.x] # two latest minor versions
+        go-version: [1.18.x, 1.19.x] # two latest minor versions
     runs-on: ubuntu-latest
     steps:
     - name: update package index
@@ -16,8 +16,8 @@ jobs:
       with:
         go-version: ${{ matrix.go-version }}
     - name: checkout code
-      uses: actions/checkout@v2
-    - uses: actions/cache@v2
+      uses: actions/checkout@v3
+    - uses: actions/cache@v3.0.5
       with:
         path: |
           ~/go/pkg/mod              # Module download cache

.github/workflows/codesee-arch-diagram.yml

@@ -0,0 +1,23 @@
+# This workflow was added by CodeSee. Learn more at https://codesee.io/
+# This is v2.0 of this workflow file
+on:
+  push:
+    branches:
+      - master
+  pull_request_target:
+    types: [opened, synchronize, reopened]
+
+name: CodeSee
+
+permissions: read-all
+
+jobs:
+  codesee:
+    runs-on: ubuntu-latest
+    continue-on-error: true
+    name: Analyze the repo with CodeSee
+    steps:
+      - uses: Codesee-io/codesee-action@v2
+        with:
+          codesee-token: ${{ secrets.CODESEE_ARCH_DIAG_API_TOKEN }}
+          codesee-url: https://app.codesee.io

.github/workflows/probe.yaml

@@ -0,0 +1,38 @@
+name: AI Comment Handler
+
+
+on:
+  pull_request:
+    types: [opened] #[opened , labeled]
+  issue_comment:
+    types: [created]          
+  issues:
+    types: [opened] #[opened, labeled]  
+    
+# Define permissions needed for the workflow
+permissions:
+  issues: write
+  pull-requests: write
+  contents: read
+
+jobs:
+  trigger_probe_chat:
+    # Uncomment if you want to run on on specific lables, in this example `probe`
+    # if: |
+    #   (github.event_name == 'pull_request' && github.event.action == 'opened') || 
+    #   (github.event_name == 'issues' && github.event.action == 'opened') || 
+    #   (github.event_name == 'issue_comment' && github.event.action == 'created') || 
+    #   ((github.event_name == 'pull_request' || github.event_name == 'issues') && 
+    #    github.event.action == 'labeled' && github.event.label.name == 'probe')
+    # Use the reusable workflow from your repository (replace <your-org/repo> and <ref>)
+    uses: buger/probe/.github/workflows/probe.yml@main
+    # Pass required inputs
+    with:
+      command_prefix: "/probe" # Or '/ai', '/ask', etc.
+      # Optionally override the default npx command if the secret isn't set
+      # default_probe_chat_command: 'node path/to/custom/script.js'
+    # Pass ALL secrets from this repository to the reusable workflow
+    # This includes GITHUB_TOKEN, PROBE_CHAT_COMMAND (if set), ANTHROPIC_API_KEY, etc.
+    secrets:
+      ANTHROPIC_API_KEY: ${{ secrets.ANTHROPIC_API_KEY }}
+      ANTHROPIC_API_URL: ${{ secrets.ANTHROPIC_API_URL }}

.github/workflows/semgrep.yml

@@ -0,0 +1,23 @@
+on:
+  pull_request: {}
+  push:
+    branches:
+    - main
+    - master
+    paths:
+    - .github/workflows/semgrep.yml
+  schedule:
+  # random HH:MM to avoid a load spike on GitHub Actions at 00:00
+  - cron: 53 23 * * *
+name: Semgrep
+jobs:
+  semgrep:
+    name: Scan
+    runs-on: ubuntu-20.04
+    env:
+      SEMGREP_APP_TOKEN: ${{ secrets.SEMGREP_APP_TOKEN }}
+    container:
+      image: returntocorp/semgrep
+    steps:
+    - uses: actions/checkout@v3
+    - run: semgrep ci

.gitignore

@@ -11,9 +11,11 @@ vendor
 hey
 
 *.bin
-
+lib/
+output/
 *.gz
 *.zip
+.aider*
 
 *.class
 
@@ -32,3 +34,4 @@ goreplay
 corpus
 crashers
 suppressions
+dist

COMM-LICENSE

@@ -2,7 +2,7 @@ END-USER LICENSE AGREEMENT
 
 ------------------------------------------------------------------------------
 
-IMPORTANT: THIS SOFTWARE END-USER LICENSE AGREEMENT ("EULA") IS A LEGAL AGREEMENT (“Agreement”) BETWEEN YOU (THE CUSTOMER, EITHER AS AN INDIVIDUAL OR, IF PURCHASED OR OTHERWISE ACQUIRED BY OR FOR AN ENTITY, AS AN ENTITY) AND GoReplay LLC. READ IT CAREFULLY BEFORE COMPLETING THE INSTALLATION PROCESS AND USING GOREPLAY PRO AND RELATED SOFTWARE COMPONENTS (“SOFTWARE”). IT PROVIDES A LICENSE TO USE THE SOFTWARE AND CONTAINS WARRANTY INFORMATION AND LIABILITY DISCLAIMERS. BY INSTALLING AND USING THE SOFTWARE, YOU ARE CONFIRMING YOUR ACCEPTANCE OF THE SOFTWARE AND AGREEING TO BECOME BOUND BY THE TERMS OF THIS AGREEMENT.
+IMPORTANT: THIS SOFTWARE END-USER LICENSE AGREEMENT ("EULA") IS A LEGAL AGREEMENT (“Agreement”) BETWEEN YOU (THE CUSTOMER, EITHER AS AN INDIVIDUAL OR, IF PURCHASED OR OTHERWISE ACQUIRED BY OR FOR AN ENTITY, AS AN ENTITY), hereafter "Customer", AND Replay Software LLC ("Licensor"). READ IT CAREFULLY BEFORE COMPLETING THE INSTALLATION PROCESS AND USING GOREPLAY PRO AND RELATED SOFTWARE COMPONENTS (“SOFTWARE”). IT PROVIDES A LICENSE TO USE THE SOFTWARE AND CONTAINS WARRANTY INFORMATION AND LIABILITY DISCLAIMERS. BY INSTALLING AND USING THE SOFTWARE, YOU ARE CONFIRMING YOUR ACCEPTANCE OF THE SOFTWARE AND AGREEING TO BECOME BOUND BY THE TERMS OF THIS AGREEMENT.
 
 ------------------------------------------------------------------------------
 
@@ -14,17 +14,17 @@ In order to use the Software under this Agreement, you must receive a “Source
 
 1.2 Unlimited Organization License. If you purchased an Organization License (included with the GoReplay Pro Software), you may install the Software on an unlimited number of Hosts. “Host” means any physical or virtual machine which is controlled by you. You may concurrently run the software on an unlimited number of Hosts.
 
-1.3 Appliance License. If you purchased an Appliance License, you may distribute the Software in any applications, frameworks, or elements (collectively referred to as an “Application” or “Applications”) that you develop using the Software in accordance with this EULA, provided that such distribution does not violate the restrictions set forth in section 3 of this EULA. You must not remove, obscure or interfere with any copyright, acknowledgment, attribution, trademark, warning or disclaimer statement affixed to, incorporated in or otherwise applied in connection with the Software. You are required to ensure that the Software is not reused by or with any applications other than those with which you distribute it as permitted herein. For example, if You install the Software on a customer’s server, that customer is not permitted to use the Software independently of your Application. You must inform GoReplay LLC of your knowledge of any infringing use of the Software by any of your customers. You are liable for compliance by those third parties with the terms and conditions of this EULA. You will not owe GoReplay LLC any royalties for your distribution of the Software in accordance with this EULA.
+1.3 Appliance License. If you purchased an Appliance License, you may distribute the Software in any applications, frameworks, or elements (collectively referred to as an “Application” or “Applications”) that you develop using the Software in accordance with this EULA, provided that such distribution does not violate the restrictions set forth in section 3 of this EULA. You must not remove, obscure or interfere with any copyright, acknowledgment, attribution, trademark, warning or disclaimer statement affixed to, incorporated in or otherwise applied in connection with the Software. You are required to ensure that the Software is not reused by or with any applications other than those with which you distribute it as permitted herein. For example, if You install the Software on a customer’s server, that customer is not permitted to use the Software independently of your Application. You must inform Licensor of your knowledge of any infringing use of the Software by any of your customers. You are liable for compliance by those third parties with the terms and conditions of this EULA. You will not owe Licensor any royalties for your distribution of the Software in accordance with this EULA.
 
 1.4 Archive Copies. You are entitled to make a reasonable amount of copies of the Software for archival purposes. Each copy must reproduce all copyright and other proprietary rights notices on or in the Software Product.
 
 1.5 Electronic Delivery. All Software and license documentation shall be delivered by electronic means unless otherwise specified on the applicable invoice or at the time of purchase. Software shall be deemed delivered when it is made available for download by you (“Delivery”).        
 
-2. Modifications. GoReplay LLC shall provide you with source code so that you can create Modifications of the original software. “Modification” means: (a) any addition to or deletion from the contents of a file included in the original Software or previous Modifications created by You, or (b) any new file that contains any part of the original Software or previous Modifications. While you retain all rights to any original work authored by you as part of the Modifications, We continue to own all copyright and other intellectual property rights in the Software.
+2. Modifications. Licensor shall provide you with source code so that you can create Modifications of the original software. “Modification” means: (a) any addition to or deletion from the contents of a file included in the original Software or previous Modifications created by You, or (b) any new file that contains any part of the original Software or previous Modifications. While you retain all rights to any original work authored by you as part of the Modifications, We continue to own all copyright and other intellectual property rights in the Software.
 
 3. Restricted Uses. 
 
-3.1 You shall not (and shall not allow any third party to): (a) decompile, disassemble, or otherwise reverse engineer the Software or attempt to reconstruct or discover any source code, underlying ideas, algorithms, file formats or programming interfaces of the Software by any means whatsoever (except and only to the extent that applicable law prohibits or restricts reverse engineering restrictions); (b) distribute, sell, sublicense, rent, lease or use the Software for time sharing, hosting, service provider or like purposes, except as expressly permitted under this Agreement; (c) redistribute the Software or Modifications other than by including the Software or a portion thereof within your own product, which must have substantially different functionality than the Software or Modifications and must not allow any third party to use the Software or Modifications, or any portions thereof, for software development or application development purposes; (d) redistribute the Software as part of a product, "appliance" or "virtual server"; (e) redistribute the Software on any server which is not directly under your control; (f) remove any product identification, proprietary, copyright or other notices contained in the Software; (g) modify any part of the Software, create a derivative work of any part of the Software (except as permitted in Section 4), or incorporate the Software, except to the extent expressly authorized in writing by GoReplay LLC; (h) publicly disseminate performance information or analysis (including, without limitation, benchmarks) from any source relating to the Software; (i) utilize any equipment, device, software, or other means designed to circumvent or remove any form of Source URL or copy protection used by GoReplay LLC in connection with the Software, or use the Software together with any authorization code, Source URL, serial number, or other copy protection device not supplied by GoReplay LLC; (j) use the Software to develop a product which is competitive with any GoReplay LLC product offerings; or (k) use unauthorized Source URLS or keycode(s) or distribute or publish Source URLs or keycode(s), except as may be expressly permitted by GoReplay LLC in writing. If your unique Source URL is ever published, GoReplay LLC reserves the right to terminate your access without notice.
+3.1 You shall not (and shall not allow any third party to): (a) decompile, disassemble, or otherwise reverse engineer the Software or attempt to reconstruct or discover any source code, underlying ideas, algorithms, file formats or programming interfaces of the Software by any means whatsoever (except and only to the extent that applicable law prohibits or restricts reverse engineering restrictions); (b) distribute, sell, sublicense, rent, lease or use the Software for time sharing, hosting, service provider or like purposes, except as expressly permitted under this Agreement; (c) redistribute the Software or Modifications other than by including the Software or a portion thereof within your own product, which must have substantially different functionality than the Software or Modifications and must not allow any third party to use the Software or Modifications, or any portions thereof, for software development or application development purposes; (d) redistribute the Software as part of a product, "appliance" or "virtual server"; (e) redistribute the Software on any server which is not directly under your control; (f) remove any product identification, proprietary, copyright or other notices contained in the Software; (g) modify any part of the Software, create a derivative work of any part of the Software (except as permitted in Section 4), or incorporate the Software, except to the extent expressly authorized in writing by Licensor; (h) publicly disseminate performance information or analysis (including, without limitation, benchmarks) from any source relating to the Software; (i) utilize any equipment, device, software, or other means designed to circumvent or remove any form of Source URL or copy protection used by Licensor in connection with the Software, or use the Software together with any authorization code, Source URL, serial number, or other copy protection device not supplied by Licensor; (j) use the Software to develop a product which is competitive with any Licensor product offerings; or (k) use unauthorized Source URLS or keycode(s) or distribute or publish Source URLs or keycode(s), except as may be expressly permitted by Licensor in writing. If your unique Source URL is ever published, Licensor reserves the right to terminate your access without notice.
 
 3.2 UNDER NO CIRCUMSTANCES MAY YOU USE THE SOFTWARE AS PART OF A PRODUCT OR SERVICE THAT PROVIDES SIMILAR FUNCTIONALITY TO THE SOFTWARE ITSELF.
 
@@ -32,35 +32,33 @@ The Open Source version of the Software (“LGPL Version”) is licensed
 under the terms of the GNU Lesser General Public License versions 3.0
 (“LGPL”) and not under this EULA. 
 
-4. Ownership. Notwithstanding anything to the contrary contained herein, except for the limited license rights expressly provided herein, GoReplay LLC and its suppliers have and will retain all rights, title and interest (including, without limitation, all patent, copyright, trademark, trade secret and other intellectual property rights) in and to the Software and all copies, modifications and derivative works thereof (including any changes which incorporate any of your ideas, feedback or suggestions). You acknowledge that you are obtaining only a limited license right to the Software, and that irrespective of any use of the words “purchase”, “sale” or like terms hereunder no ownership rights are being conveyed to you under this Agreement or otherwise. 
+4. Ownership. Notwithstanding anything to the contrary contained herein, except for the limited license rights expressly provided herein, Licensor and its suppliers have and will retain all rights, title and interest (including, without limitation, all patent, copyright, trademark, trade secret and other intellectual property rights) in and to the Software and all copies, modifications and derivative works thereof (including any changes which incorporate any of your ideas, feedback or suggestions). You acknowledge that you are obtaining only a limited license right to the Software, and that irrespective of any use of the words “purchase”, “sale” or like terms hereunder no ownership rights are being conveyed to you under this Agreement or otherwise. 
 
-5. Fees and Payment. The Software license fees will be due and payable in full as set forth in the applicable invoice or at the time of purchase. If the Software does not function properly within two weeks of purchase, please contact us within those two weeks for a refund. You shall be responsible for all taxes, withholdings, duties and levies arising from the order (excluding taxes based on the net income of GoReplay LLC). 
+5. Fees and Payment. The Software license fees will be due and payable in full as set forth in the applicable invoice or at the time of purchase. If the Software does not function properly within two weeks of purchase, please contact us within those two weeks for a refund. You shall be responsible for all taxes, withholdings, duties and levies arising from the order (excluding taxes based on the net income of Licensor). 
 
 6. Support, Maintenance and Services. Subject to the terms and conditions of this Agreement, as set forth in your invoice, and as set forth on the GoReplay Pro support page (https://github.com/buger/goreplay/wiki/Pro-Support), support and maintenance services may be included with the purchase of your license subscription.
 
 7. Term of Agreement. 
 
-7.1 Term. This Agreement is effective as of the Delivery of the Software and expires at such time as all license and service subscriptions hereunder have expired in accordance with their own terms (the “Term”). For clarification, the term of your license under this Agreement may be perpetual, limited for Evaluation Version, or designated as a fixed-term license in the Invoice, and shall be specified at your time of purchase. Either party may terminate this Agreement (including all related Invoices) if the other party: (a) fails to cure any material breach of this Agreement within thirty (30) days after written notice of such breach, provided that GoReplay LLC may terminate this Agreement immediately upon any breach of Section 3 or if you exceed any other restrictions contained in Section 1, unless otherwise specified in this agreement; (b) ceases operation without a successor; or (c) seeks protection under any bankruptcy, receivership, trust deed, creditors arrangement, composition or comparable proceeding, or if any such proceeding is instituted against such party (and not dismissed within sixty (60) days)). Termination is not an exclusive remedy and the exercise by either party of any remedy under this Agreement will be without prejudice to any other remedies it may have under this Agreement, by law, or otherwise.        
+7.1 Term. This Agreement is effective as of the Delivery of the Software and expires at such time as all license and service subscriptions hereunder have expired in accordance with their own terms (the “Term”). For clarification, the term of your license under this Agreement may be perpetual, limited for Evaluation Version, or designated as a fixed-term license in the Invoice, and shall be specified at your time of purchase. Either party may terminate this Agreement (including all related Invoices) if the other party: (a) fails to cure any material breach of this Agreement within thirty (30) days after written notice of such breach, provided that Licensor may terminate this Agreement immediately upon any breach of Section 3 or if you exceed any other restrictions contained in Section 1, unless otherwise specified in this agreement; (b) ceases operation without a successor; or (c) seeks protection under any bankruptcy, receivership, trust deed, creditors arrangement, composition or comparable proceeding, or if any such proceeding is instituted against such party (and not dismissed within sixty (60) days)). Termination is not an exclusive remedy and the exercise by either party of any remedy under this Agreement will be without prejudice to any other remedies it may have under this Agreement, by law, or otherwise.        
 
 7.2 Termination. Upon any termination of this Agreement, you shall cease any and all use of any Software and destroy all copies thereof. 
 
-7.3 Expiration of License. Upon the expiration of any term under this Agreement, (a) all Software updates and services pursuant to the license shall cease, (b) you may only continue to run existing installations of the Software, (c) you may not install the Software on any additional Hosts, and (d) any new installation of the Software shall require the purchase of a new license subscription from GoReplay LLC.
+7.3 Expiration of License. Upon the expiration of any term under this Agreement, (a) all Software updates and services pursuant to the license shall cease, (b) you may only continue to run existing installations of the Software, (c) you may not install the Software on any additional Hosts, and (d) any new installation of the Software shall require the purchase of a new license subscription from Licensor.
 
-8. Disclaimer of Warranties. The Software is provided "as is," with all faults, defects and errors, and without warranty of any kind. GoReplay LLC does not warrant that the Software will be free of bugs, errors, viruses or other defects, and GoReplay LLC shall have no liability of any kind for the use of or inability to use the Software, the Software content or any associated service, and you acknowledge that it is not technically practicable for GoReplay LLC to do so. 
-To the maximum extent permitted by applicable law, GoReplay LLC disclaims all warranties, express, implied, arising by law or otherwise, regarding the Software, the Software content and their respective performance or suitability for your intended use, including without limitation any implied warranty of merchantability, fitness for a particular purpose.
-Notwithstanding the foregoing, GoReplay LLC represents and warrants that it either owns the entire right to, title to, interest in, or has the right to license, the Software, and your proper use of the same will not violate any intellectual property or proprietary rights of another.
+8. Disclaimer of Warranties. The Software is provided "as is," with all faults, defects and errors, and without warranty of any kind. Licensor does not warrant that the Software will be free of bugs, errors, viruses or other defects, and Licensor shall have no liability of any kind for the use of or inability to use the Software, the Software content or any associated service, and you acknowledge that it is not technically practicable for Licensor to do so. 
+To the maximum extent permitted by applicable law, Licensor disclaims all warranties, express, implied, arising by law or otherwise, regarding the Software, the Software content and their respective performance or suitability for your intended use, including without limitation any implied warranty of merchantability, fitness for a particular purpose.
+Notwithstanding the foregoing, Licensor represents and warrants that it either owns the entire right to, title to, interest in, or has the right to license, the Software, and your proper use of the same will not violate any intellectual property or proprietary rights of another.
 
 9. Limitation of Liability. 
 
-In no event will either party be liable for any direct, indirect, consequential, incidental, special, exemplary, or punitive damages or liabilities whatsoever arising from or relating to the Software, the Software content or this Agreement, whether based on contract, tort (including negligence), strict liability or other theory, even if such party has been advised of the possibility of such damages.
+In no event will either party be liable for any direct, indirect, consequential, incidental, special, exemplary, or punitive damages or liabilities whatsoever arising from or relating to the Software, the Software content or this Agreement, whether based on contract, tort (including negligence), strict liability or other theory, even if such party has been advised of the possibility of such damages. Except for indemnification obligations in Section 13.5, in no event will Licensor liability exceed the Software license price as indicated in the invoice. The existence of more than one claim will not enlarge or extend this limit.
 
-In no event will GoReplay LLC liability exceed the Software license price as indicated in the invoice. The existence of more than one claim will not enlarge or extend this limit.
-
-10. Remedies. Your exclusive remedy and GoReplay LLC’ entire liability for breach of this Agreement shall be limited, at GoReplay LLC’ sole and exclusive discretion, to (a) replacement of any defective software or documentation; or (b) refund of the license fee paid to GoReplay LLC, payable in accordance with GoReplay LLC' refund policy.
+10. Remedies. Your exclusive remedy and Licensor’ entire liability for breach of this Agreement shall be limited, at Licensor’ sole and exclusive discretion, to (a) replacement of any defective software or documentation; or (b) refund of the license fee paid to Licensor, payable in accordance with Licensor' refund policy.
 
 11. Acknowledgements.
 
-11.1 Consent to the Use of Data. You agree that GoReplay LLC and its affiliates may collect and use technical information gathered as part of the product support services to be used in an anonymized manner. GoReplay LLC may use this information solely to improve products and services and will not disclose this information in a form that personally identifies you.
+11.1 Consent to the Use of Data. You agree that Licensor and its affiliates may collect and use technical information gathered as part of the product support services to be used in an anonymized manner. Licensor may use this information solely to improve products and services and will not disclose this information in a form that personally identifies you.
 
 11.2 Verification. We or a certified auditor acting on our behalf, may, upon its reasonable request and at its expense, audit you with respect to the use of the Software, subject to your reasonable information security and confidentiality protections. Such audit may be conducted by mail, electronic means or through an in-person visit to your place of business. Any such in-person audit shall be conducted during regular business hours at your facilities and shall not unreasonably interfere with your business activities. We shall not remove, copy, or redistribute any electronic material during the course of an audit. If an audit reveals that you are using the Software in a way that is in material violation of the terms of the EULA, then you shall pay our reasonable costs of conducting the audit. In the case of a material violation, you agree to pay Us any amounts owing that are attributable to the unauthorized use. In the alternative, We reserve the right, at our sole option, to terminate the licenses for the Software.
 
@@ -73,13 +71,13 @@ In no event will GoReplay LLC liability exceed the Software license price as ind
 
 13.1 Entire Agreement. This Agreement sets forth our entire agreement with respect to the Software and the subject matter hereof and supersedes all prior and contemporaneous understandings and agreements whether written or oral.
 
-13.2 Amendment. GoReplay LLC reserves the right, in its sole discretion, to amend this Agreement from time. Amendments to this Agreement can be located at: https://github.com/buger/goreplay/blob/master/COMM-LICENSE.
+13.2 Amendment. Licensor reserves the right, in its sole discretion, to amend this Agreement from time. Amendments to this Agreement can be located at: https://github.com/buger/goreplay/blob/master/COMM-LICENSE.
 
-13.3 Assignment. You may not assign this Agreement or any of its rights under this Agreement without the prior written consent of GoReplay LLC and any attempted assignment without such consent shall be void.
+13.3 Assignment. You may not assign this Agreement or any of its rights under this Agreement without the prior written consent of Licensor and any attempted assignment without such consent shall be void.
 
 13.4 Export Compliance. Each party agrees to comply with all applicable laws and regulations, including laws, regulations, orders or other restrictions on export, re-export or redistribution of software.
 
-13.5 Indemnification. You agree to defend, indemnify, and hold harmless GoReplay LLC from and against any lawsuits, claims, losses, damages, fines and expenses (including attorneys' fees and costs) arising out of your use of the Software or breach of this Agreement.
+13.5 Indemnification. Licensor agrees to defend, indemnify, and hold harmless You from and against any lawsuits, claims, losses, damages, fines and expenses (including attorneys' fees and costs) arising out of a claim brought by a third-party alleging that the Software directly infringes such third-party’s intellectual property rights; provided that Licensor shall have no indemnity obligation for claims arising out of your modification to the Software. You agree to defend, indemnify, and hold harmless Licensor from and against any lawsuits, claims, losses, damages, fines and expenses (including attorneys' fees and costs) brought by a third-party arising out of your modifications to the Software or breach of this Agreement.
 
 13.6 Governing Law. This Agreement is governed by the laws of the State of Oregon and the United States without regard to conflicts of laws provisions thereof, and without regard to the United Nations Convention on the International Sale of Goods or the Uniform Computer Information Transactions Act, as currently enacted by any jurisdiction or as may be codified or amended from time to time by any jurisdiction. The jurisdiction and venue for actions related to the subject matter hereof shall be the state of Oregon and United States federal courts located in Portland, Oregon, and both parties hereby submit to the personal jurisdiction of such courts. 
 
@@ -91,4 +89,4 @@ In no event will GoReplay LLC liability exceed the Software license price as ind
 
 13.10 Headings. The headings of sections and paragraphs of this Agreement are for convenience of reference only and are not intended to restrict, affect or be of any weight in the interpretation or construction of the provisions of such sections or paragraphs.
 
-14. Contact Information. If you have any questions about this EULA, or if you want to contact GoReplay LLC for any reason, please direct correspondence to info@gortool.com
+14. Contact Information. If you have any questions about this EULA, or if you want to contact Licensor for any reason, please direct correspondence to hello@goreplay.org

Dockerfile

@@ -1,4 +1,4 @@
-FROM alpine:3.12 as builder
+FROM alpine:3.16 as builder
 
 ARG RELEASE_VERSION
 
@@ -7,5 +7,6 @@ RUN wget https://github.com/buger/goreplay/releases/download/${RELEASE_VERSION}/
 RUN tar xzf gor.tar.gz
 
 FROM scratch
+COPY --from=builder /etc/ssl/certs/ca-certificates.crt /etc/ssl/certs/
 COPY --from=builder /gor .
 ENTRYPOINT ["./gor"]

Dockerfile.dev

@@ -1,14 +1,20 @@
-FROM golang:1.15
+ARG BASE_IMAGE
+FROM ${BASE_IMAGE}
 
-RUN apt-get update && apt-get install ruby vim-common -y
+RUN apk add --no-cache \
+    gcc \
+    g++ \
+    make \
+    linux-headers \
+    bison \
+    flex \
+    git \
+    wget
 
-RUN apt-get install flex bison -y
 RUN wget http://www.tcpdump.org/release/libpcap-1.10.0.tar.gz && tar xzf libpcap-1.10.0.tar.gz && cd libpcap-1.10.0 && ./configure && make install
 
-RUN go get github.com/google/gopacket
-RUN go get -u golang.org/x/lint/golint
-
 WORKDIR /go/src/github.com/buger/goreplay/
 ADD . /go/src/github.com/buger/goreplay/
 
+RUN go get golang.org/x/lint/golint
 RUN go get

LICENSE.txt

@@ -3,7 +3,7 @@ Copyright (c) 2011-present Leonid Bugaev
 Portions of this software are licensed as follows:
 
 * All content residing under the "doc/" directory of this repository is licensed under "Creative Commons: CC BY-SA 4.0 license".
-* Files with the following names "pro.go", "s3_reader.go", "output_s3.go" are released under the commercial license specified in "COMM-LICENSE" file.
+* The file "pro.go" and all files ending with the "_pro.go" suffix are released under the commercial license specified in the "COMM-LICENSE" file.
 * Content outside of the above mentioned directories or restrictions above is available under the "LGPLv3" license as defined below.
 
 

Makefile

@@ -1,86 +1,99 @@
 SOURCE = $(shell ls -1 *.go | grep -v _test.go)
+PROJECT_NAME := goreplay
 SOURCE_PATH = /go/src/github.com/buger/goreplay/
 PORT = 8000
 FADDR = :8000
-CONTAINER=gor
-PREFIX=
-RUN = docker run -v `pwd`:$(SOURCE_PATH) -e AWS_ACCESS_KEY_ID=$(AWS_ACCESS_KEY_ID) -e AWS_SECRET_ACCESS_KEY=$(AWS_SECRET_ACCESS_KEY) -p 0.0.0.0:$(PORT):$(PORT) -t -i $(CONTAINER)
+DIST_PATH = dist
+CONTAINER_AMD=gor-amd64
+CONTAINER_ARM=gor-arm64
+RUN = docker run --rm -v `pwd`:$(SOURCE_PATH) -e AWS_ACCESS_KEY_ID=$(AWS_ACCESS_KEY_ID) -e AWS_SECRET_ACCESS_KEY=$(AWS_SECRET_ACCESS_KEY) -p 0.0.0.0:$(PORT):$(PORT) -t -i $(CONTAINER_AMD)
 BENCHMARK = BenchmarkRAWInput
 TEST = TestRawListenerBench
 BIN_NAME = gor
-VERSION = DEV-$(shell date +%s)
-LDFLAGS = -ldflags "-X main.VERSION=$(VERSION)$(PREFIX) -extldflags \"-static\" -X main.DEMO=$(DEMO)"
-MAC_LDFLAGS = -ldflags "-X main.VERSION=$(VERSION)$(PREFIX) -X main.DEMO=$(DEMO)"
-FADDR = ":8000"
+VERSION := DEV-$(shell date +%s)
+CUSTOM_TAGS := --tags "ngo$(if $(CUSTOM_BUILD_TAGS), $(CUSTOM_BUILD_TAGS),)"
+LDFLAGS = -ldflags "-X main.VERSION=$(VERSION) -extldflags \"-static\" -X main.DEMO=$(DEMO)"
+MAC_LDFLAGS = -ldflags "-X main.VERSION=$(VERSION) -X main.DEMO=$(DEMO)"
+DOCKER_FPM_CMD := docker run --rm -t -v `pwd`:/src -w /src fleetdm/fpm
 
-FPMCOMMON= \
-    --name goreplay \
-    --description "GoReplay is an open-source network monitoring tool which can record your live traffic, and use it for shadowing, load testing, monitoring and detailed analysis." \
-    -v $(VERSION) \
-    --vendor "Leonid Bugaev" \
-    -m "<support@goreplay.org>" \
-    --url "https://goreplay.org" \
-    -s dir \
-    -C /tmp/gor-build \
+FPM_COMMON= \
+				--name $(PROJECT_NAME) \
+				--description "GoReplay is an open-source network monitoring tool which can record your live traffic, and use it for shadowing, load testing, monitoring and detailed analysis." \
+				-v $(VERSION) \
+				--vendor "Leonid Bugaev" \
+				-m "<support@goreplay.org>" \
+				--url "https://goreplay.org" \
+				-s dir
 
-release: vendor release-x64 release-mac release-windows
+release: clean release-linux-amd64 release-linux-arm64 release-mac-amd64 release-mac-arm64 release-windows
 
+.PHONY: vendor
 vendor:
 	go mod vendor
 
-release-bin:
-	docker run -v `pwd`:$(SOURCE_PATH) -t --env GOOS=linux --env GOARCH=amd64  -i $(CONTAINER) go build -mod=vendor -o $(BIN_NAME) -tags netgo $(LDFLAGS)
+release-bin-linux-amd64: vendor
+	docker run --platform linux/amd64 --rm -v `pwd`:$(SOURCE_PATH) -t --env GOOS=linux --env GOARCH=amd64 -i $(CONTAINER_AMD) go build -mod=vendor -o $(BIN_NAME) $(CUSTOM_TAGS) $(LDFLAGS) ./cmd/gor/
 
-release-bin-mac:
-	GOOS=darwin go build -o $(BIN_NAME) $(MAC_LDFLAGS)
+release-bin-linux-arm64: vendor
+	docker run --platform linux/arm64 --rm -v `pwd`:$(SOURCE_PATH) -t --env GOOS=linux --env GOARCH=arm64 -i $(CONTAINER_ARM) go build -mod=vendor -o $(BIN_NAME) $(CUSTOM_TAGS) $(LDFLAGS) ./cmd/gor/
 
-release-x64:
-	docker run -v `pwd`:$(SOURCE_PATH) -t --env GOOS=linux --env GOARCH=amd64  -i $(CONTAINER) go build -mod=vendor -o $(BIN_NAME) -tags netgo $(LDFLAGS)
-	tar -czf gor_$(VERSION)$(PREFIX)_x64.tar.gz $(BIN_NAME)
-	mkdir -p /tmp/gor-build
-	mv ./$(BIN_NAME) /tmp/gor-build/$(BIN_NAME)
-	cd /tmp/gor-build
-	rm -f goreplay_$(VERSION)_amd64.deb
-	rm -f goreplay-$(VERSION)-1.x86_64.rpm
-	fpm $(FPMCOMMON) -a amd64 -t deb ./=/usr/local/bin
-	fpm $(FPMCOMMON) -a amd64 -t rpm ./=/usr/local/bin
-	rm -rf /tmp/gor-build
+release-bin-mac-amd64: vendor
+	GOOS=darwin go build -mod=vendor -o $(BIN_NAME) $(CUSTOM_TAGS) $(MAC_LDFLAGS) ./cmd/gor/
 
-release-x86:
-	docker run -v `pwd`:$(SOURCE_PATH) -t --env GOOS=linux --env GOARCH=386 -i $(CONTAINER) go build -mod=vendor -o $(BIN_NAME) -tags netgo $(LDFLAGS)
-	tar -czf gor_$(VERSION)$(PREFIX)_x86.tar.gz $(BIN_NAME)
-	rm $(BIN_NAME)
+release-bin-mac-arm64: vendor
+	GOOS=darwin GOARCH=arm64 CGO_ENABLED=1 go build -mod=vendor -o $(BIN_NAME) $(CUSTOM_TAGS) $(MAC_LDFLAGS)
 
-release-mac:
-	go build -mod=vendor -o $(BIN_NAME) $(MAC_LDFLAGS)
-	tar -czf gor_$(VERSION)$(PREFIX)_mac.tar.gz $(BIN_NAME)
-	mkdir -p /tmp/gor-build
-	mv ./$(BIN_NAME) /tmp/gor-build/$(BIN_NAME)
-	cd /tmp/gor-build
-	rm -f goreplay-$(VERSION).pkg
-	fpm $(FPMCOMMON) -a amd64 -t osxpkg ./=/usr/local/bin
-	rm -rf /tmp/gor-build
+release-bin-windows: vendor
+	docker run -it --rm -v `pwd`:$(SOURCE_PATH) -w $(SOURCE_PATH) -e CGO_ENABLED=1 docker.elastic.co/beats-dev/golang-crossbuild:1.19.2-main --build-cmd "make VERSION=$(VERSION) CUSTOM_BUILD_TAGS=$(CUSTOM_BUILD_TAGS) build" -p "windows/amd64" ./cmd/gor/
+	mv $(BIN_NAME) "$(BIN_NAME).exe"
 
-release-windows:
-	docker run -it --rm \
-	  -v `pwd`:/go/src/github.com/buger/goreplay \
-	  -w /go/src/github.com/buger/goreplay \
-	  -e CGO_ENABLED=1 \
-	  docker.elastic.co/beats-dev/golang-crossbuild:1.16.4-main \
-	  --build-cmd "make VERSION=$(VERSION) build" \
-	  -p "windows/amd64"
-	mv ./gor ./gor.exe
-	zip gor-$(VERSION)$(PREFIX)_windows.zip ./gor.exe
-	rm -rf ./gor.exe
+release-linux-amd64: dist release-bin-linux-amd64
+	tar -czf $(DIST_PATH)/gor_$(VERSION)_linux_amd64.tar.gz $(BIN_NAME)
+	$(DOCKER_FPM_CMD) $(FPM_COMMON) -f -t deb -a arm64 -p ./$(DIST_PATH) ./gor=/usr/local/bin
+	$(DOCKER_FPM_CMD) $(FPM_COMMON) -f -t rpm -a arm64 -p ./$(DIST_PATH) ./gor=/usr/local/bin
+	rm -rf $(BIN_NAME)
+
+release-linux-arm64: dist release-bin-linux-arm64
+	tar -czf $(DIST_PATH)/gor_$(VERSION)_linux_arm64.tar.gz $(BIN_NAME)
+	$(DOCKER_FPM_CMD) $(FPM_COMMON) -f -t deb -a arm64 -p ./$(DIST_PATH) ./gor=/usr/local/bin
+	$(DOCKER_FPM_CMD) $(FPM_COMMON) -f -t rpm -a arm64 -p ./$(DIST_PATH) ./gor=/usr/local/bin
+	rm -rf $(BIN_NAME)
+
+release-mac-amd64: dist release-bin-mac-amd64
+	tar -czf $(DIST_PATH)/gor_$(VERSION)_darwin_amd64.tar.gz $(BIN_NAME)
+	fpm $(FPM_COMMON) -f -t osxpkg -a amd64 -p ./$(DIST_PATH) ./gor=/usr/local/bin
+	mv ./$(DIST_PATH)/$(PROJECT_NAME)-$(VERSION).pkg ./$(DIST_PATH)/$(PROJECT_NAME)-$(VERSION)-amd64.pkg
+	rm -rf $(BIN_NAME)
+
+release-mac-arm64: dist release-bin-mac-arm64
+	tar -czf $(DIST_PATH)/gor_$(VERSION)_darwin_arm64.tar.gz $(BIN_NAME)
+	fpm $(FPM_COMMON) -f -t osxpkg -a arm64 -p ./$(DIST_PATH) ./gor=/usr/local/bin
+	mv ./$(DIST_PATH)/$(PROJECT_NAME)-$(VERSION).pkg ./$(DIST_PATH)/$(PROJECT_NAME)-$(VERSION)-arm64.pkg
+	rm -rf $(BIN_NAME)
+
+release-windows: dist release-bin-windows
+	zip $(DIST_PATH)/gor-$(VERSION)_windows.zip "$(BIN_NAME).exe"
+	rm -rf "$(BIN_NAME).exe"
+
+clean:
+	rm -rf $(DIST_PATH)
 
 build:
-	go build -mod=vendor -o $(BIN_NAME) $(LDFLAGS)
+	go build -mod=vendor -o $(BIN_NAME) $(CUSTOM_TAGS) $(LDFLAGS)
 
 install:
-	go install $(MAC_LDFLAGS)
+	go install $(CUSTOM_TAGS) $(MAC_LDFLAGS)
 
-build-env:
-	docker build -t $(CONTAINER) -f Dockerfile.dev .
+build-env: build-amd64-env build-arm64-env
+
+build-amd64-env:
+	docker buildx build --build-arg BASE_IMAGE=golang:1.22-alpine --platform linux/amd64 -t $(CONTAINER_AMD) -f Dockerfile.dev --load .
+
+build-arm64-env:
+	docker buildx build --build-arg BASE_IMAGE=arm64v8/golang:1.22-alpine --platform linux/arm64 -t $(CONTAINER_ARM) -f Dockerfile.dev --load .
+
+build-docker:
+	docker build -t gor-dev -f Dockerfile .
 
 profile:
 	go build && ./$(BIN_NAME) --output-http="http://localhost:9000" --input-dummy 0 --input-raw :9000 --input-http :9000 --memprofile=./mem.out --cpuprofile=./cpu.out --stats --output-http-stats --output-http-timeout 100ms
@@ -92,13 +105,13 @@ race:
 	$(RUN) go test ./... $(ARGS) -v -race -timeout 15s
 
 test:
-	$(RUN) go test ./. -timeout 120s $(LDFLAGS) $(ARGS)  -v
+	$(RUN) go test ./. -timeout 120s $(CUSTOM_TAGS) $(LDFLAGS) $(ARGS)  -v
 
 test_all:
-	$(RUN) go test ./... -timeout 120s $(LDFLAGS) $(ARGS) -v
+	$(RUN) go test ./... -timeout 120s $(CUSTOM_TAGS) $(LDFLAGS) $(ARGS) -v
 
 testone:
-	$(RUN) go test ./. -timeout 60s $(LDFLAGS) -run $(TEST) $(ARGS) -v
+	$(RUN) go test ./. -timeout 60s $(CUSTOM_TAGS) $(LDFLAGS) -run $(TEST) $(ARGS) -v
 
 cover:
 	$(RUN) go test $(ARGS) -race -v -timeout 15s -coverprofile=coverage.out
@@ -111,53 +124,39 @@ vet:
 	$(RUN) go vet
 
 bench:
-	$(RUN) go test $(LDFLAGS) -v -run NOT_EXISTING -bench $(BENCHMARK) -benchtime 5s
+	$(RUN) go test $(CUSTOM_TAGS) $(LDFLAGS) -v -run NOT_EXISTING -bench $(BENCHMARK) -benchtime 5s
 
 profile_test:
-	$(RUN) go test $(LDFLAGS) -run $(TEST) ./capture/. $(ARGS) -memprofile mem.mprof -cpuprofile cpu.out
-	$(RUN) go test $(LDFLAGS) -run $(TEST) ./capture/. $(ARGS) -c
+	$(RUN) go test $(CUSTOM_TAGS) $(LDFLAGS) -run $(TEST) ./capture/. $(ARGS) -memprofile mem.mprof -cpuprofile cpu.out
+	$(RUN) go test $(CUSTOM_TAGS) $(LDFLAGS) -run $(TEST) ./capture/. $(ARGS) -c
 
 # Used mainly for debugging, because docker container do not have access to parent machine ports
 run:
-	$(RUN) go run $(LDFLAGS) $(SOURCE) --input-dummy=0 --output-http="http://localhost:9000" --input-raw-track-response --input-raw 127.0.0.1:9000 --verbose 0 --middleware "./examples/middleware/echo.sh" --output-file requests.gor
+	$(RUN) go run $(CUSTOM_TAGS) $(LDFLAGS) $(SOURCE) --input-dummy=0 --output-http="http://localhost:9000" --input-raw-track-response --input-raw 127.0.0.1:9000 --verbose 0 --middleware "./examples/middleware/echo.sh" --output-file requests.gor
 
 run-2:
-	$(RUN) go run $(LDFLAGS) $(SOURCE) --input-raw :8000 --input-raw-bpf-filter "dst port 8000" --output-stdout --output-http "http://localhost:8000" --input-dummy=0
+	$(RUN) go run $(CUSTOM_TAGS) $(LDFLAGS) $(SOURCE) --input-raw :8000 --input-raw-bpf-filter "dst port 8000" --output-stdout --output-http "http://localhost:8000" --input-dummy=0
 
 run-3:
-	sudo -E go run $(SOURCE) --input-tcp :27001 --output-stdout
+	sudo -E go run $(CUSTOM_TAGS) $(SOURCE) --input-tcp :27001 --output-stdout
 
 run-arg:
-	sudo -E go run $(SOURCE) $(ARGS)
+	sudo -E go run $(CUSTOM_TAGS) $(SOURCE) $(ARGS)
 
 file-server:
-	go run $(SOURCE) file-server $(FADDR)
+	go run $(CUSTOM_TAGS) $(SOURCE) file-server $(FADDR)
 
 readpcap:
-	go run $(SOURCE) --input-raw $(FILE) --input-raw-track-response --input-raw-engine pcap_file --output-stdout
+	go run $(CUSTOM_TAGS) $(SOURCE) --input-raw $(FILE) --input-raw-track-response --input-raw-engine pcap_file --output-stdout
 
 record:
-	$(RUN) go run $(SOURCE) --input-dummy=0 --output-file=requests.gor --verbose --debug
+	$(RUN) go run $(CUSTOM_TAGS) $(SOURCE) --input-dummy=0 --output-file=requests.gor --verbose --debug
 
 replay:
-	$(RUN) go run $(SOURCE) --input-file=requests.bin --output-tcp=:9000 --verbose -h
+	$(RUN) go run $(CUSTOM_TAGS) $(SOURCE) --input-file=requests.bin --output-tcp=:9000 --verbose -h
 
 bash:
 	$(RUN) /bin/bash
 
-
-FPMCOMMON= \
-    --name gor \
-    --description "GoReplay is an open-source network monitoring tool which can record your live traffic, and use it for shadowing, load testing, monitoring and detailed analysis." \
-    -v $(VERSION) \
-    --vendor "Leonid Bugaev" \
-    -m "<support@goreplay.org>" \
-    --url "https://goreplay.org" \
-    -s dir \
-    -C /tmp/gor-build \
-
-build_packages:
-	mkdir -p /tmp/gor-build
-	go build -i -o /tmp/gor-build/$(BIN_NAME)
-	fpm $(FPMCOMMON) -a amd64 -t deb ./=/usr/local/bin
-	fpm $(FPMCOMMON) -a amd64 -t rpm ./=/usr/local/bin
+dist:
+	mkdir -p $(DIST_PATH)

README.md

@@ -1,10 +1,10 @@
-[![GitHub release](https://img.shields.io/github/release/buger/gor.svg?maxAge=3600)](https://github.com/buger/goreplay/releases) [![codebeat](https://codebeat.co/badges/6427d589-a78e-416c-a546-d299b4089893)](https://codebeat.co/projects/github-com-buger-gor) [![Go Report Card](https://goreportcard.com/badge/github.com/buger/gor)](https://goreportcard.com/report/github.com/buger/gor) [![Join the chat at https://gitter.im/buger/gor](https://badges.gitter.im/buger/gor.svg)](https://gitter.im/buger/gor?utm_source=badge&utm_medium=badge&utm_campaign=pr-badge&utm_content=badge) [![Reviewed by Hound](https://img.shields.io/badge/Reviewed_by-Hound-8E64B0.svg)](https://houndci.com)
+<a href="https://semgrep.dev/login?utm_source=github&utm_medium=badge&utm_campaign=growth-oss"><img src="https://img.shields.io/badge/semgrep-security-green.svg" /></a> [![GitHub release](https://img.shields.io/github/release/buger/gor.svg?maxAge=3600)](https://github.com/buger/goreplay/releases) [![codebeat](https://codebeat.co/badges/6427d589-a78e-416c-a546-d299b4089893)](https://codebeat.co/projects/github-com-buger-gor) [![Go Report Card](https://goreportcard.com/badge/github.com/buger/gor)](https://goreportcard.com/report/github.com/buger/gor) [![Join the chat at https://gitter.im/buger/gor](https://badges.gitter.im/buger/gor.svg)](https://gitter.im/buger/gor?utm_source=badge&utm_medium=badge&utm_campaign=pr-badge&utm_content=badge) [![Reviewed by Hound](https://img.shields.io/badge/Reviewed_by-Hound-8E64B0.svg)](https://houndci.com)
 
 ![Go Replay](http://i.imgur.com/ZG2ki5n.png)
 
 ## https://goreplay.org/
 
-GoReplay is an open-source network monitoring tool which can record your live traffic, and use it for shadowing, load testing, monitoring and detailed analysis.
+GoReplay is an open-source network monitoring tool which can record your live traffic and use it for shadowing, load testing, monitoring and detailed analysis.
 
 ## About
 
@@ -13,29 +13,28 @@ As your application grows, the effort required to test it also grows exponential
 GoReplay increases your confidence in code deployments, configuration and infrastructure changes.
 
 
-GoReplay offers unique approach for shadowing. Instead of being a proxy, GoReplay in background listen for traffic on your network interface, requiring no changes in your production infrastructure, rather then running GoReplay daemon on the same machine as your service.
+GoReplay offers a unique approach for shadowing. Instead of being a proxy, GoReplay listens in the background for traffic on your network interfaces, requiring no changes in your production infrastructure, other than running GoReplay daemon on the same machine as your service.
 
 ![Diagram](https://i.imgur.com/IN2xfDm.png)
 
 Check [latest documentation](http://github.com/buger/goreplay/wiki).
 
 ## Installation
-Download latest binary from https://github.com/buger/goreplay/releases or [compile by yourself](https://github.com/buger/goreplay/wiki/Compilation).
+Download the latest binary from https://github.com/buger/goreplay/releases or [compile by yourself](https://github.com/buger/goreplay/wiki/Compilation).
 
 ## Getting started
 
 The most basic setup will be `sudo ./gor --input-raw :8000 --output-stdout` which acts like tcpdump.
-If you already have test environment you can start replaying: `sudo ./gor --input-raw :8000 --output-http http://staging.env`.
+If you already have a test environment, you can start replaying by running: `sudo ./gor --input-raw :8000 --output-http http://staging.env`.
 
-See the our [documentation](https://github.com/buger/goreplay/wiki/) and [Getting started](https://github.com/buger/goreplay/wiki/Getting-Started) page for more info. 
+See our [documentation](https://github.com/buger/goreplay/wiki/) and the [Getting Started](https://github.com/buger/goreplay/wiki/Getting-Started) page for more info. 
 
 ## Newsletter
-Subscribe to our [newsletter](https://www.getdrip.com/forms/89690474/submissions/new) to stay informed about the latest features and changes to Gor project.
-
+Subscribe to our [newsletter](https://www.getdrip.com/forms/89690474/submissions/new) to stay informed about the latest features and changes to the Gor project.
 
 ## Want to Upgrade?
 
-We have created a [GoReplay PRO](https://goreplay.org/pro.html) extension which provides additional features such as support for binary protocols like Thrift or ProtocolBuffers, saving and replaying from cloud storage, TCP sessions replication, etc. The PRO version also includes a commercial-friendly license, dedicated support, and it also allows you to support high-quality open source development. 
+We have created a [GoReplay PRO](https://goreplay.org/pro.html) extension which provides additional features such as support for binary protocols like Thrift or ProtocolBuffers, saving and replaying from cloud storage, TCP session replication, etc. The PRO version also includes a commercial-friendly license, dedicated support, and it also allows you to support high-quality open source development. 
 
 
 ## Problems?

ce.go

@@ -0,0 +1,17 @@
+//go:build !pro
+
+package goreplay
+
+import (
+	"fmt"
+)
+
+// PRO this value indicates if goreplay is running in PRO mode.
+var PRO = false
+
+func SettingsHook(settings *AppSettings) {
+	if settings.RecognizeTCPSessions {
+		settings.RecognizeTCPSessions = false
+		fmt.Println("[ERROR] TCP session recognition is not supported in the open-source version of GoReplay")
+	}
+}

cmd/gor/gor.go

@@ -6,6 +6,7 @@ import (
 	"expvar"
 	"flag"
 	"fmt"
+	"github.com/buger/goreplay"
 	"log"
 	"net/http"
 	"net/http/httputil"
@@ -71,23 +72,23 @@ func main() {
 	}
 
 	args := os.Args[1:]
-	var plugins *InOutPlugins
+	var plugins *goreplay.InOutPlugins
 	if len(args) > 0 && args[0] == "file-server" {
 		if len(args) != 2 {
 			log.Fatal("You should specify port and IP (optional) for the file server. Example: `gor file-server :80`")
 		}
 		dir, _ := os.Getwd()
 
-		Debug(0, "Started example file server for current directory on address ", args[1])
+		goreplay.Debug(0, "Started example file server for current directory on address ", args[1])
 
 		log.Fatal(http.ListenAndServe(args[1], loggingMiddleware(args[1], http.FileServer(http.Dir(dir)))))
 	} else {
 		flag.Parse()
-		checkSettings()
-		plugins = NewPlugins()
+		goreplay.CheckSettings()
+		plugins = goreplay.NewPlugins()
 	}
 
-	log.Printf("[PPID %d and PID %d] Version:%s\n", os.Getppid(), os.Getpid(), VERSION)
+	log.Printf("[PPID %d and PID %d] Version:%s\n", os.Getppid(), os.Getpid(), goreplay.VERSION)
 
 	if len(plugins.Inputs) == 0 || len(plugins.Outputs) == 0 {
 		log.Fatal("Required at least 1 input and 1 output")
@@ -101,20 +102,20 @@ func main() {
 		profileCPU(*cpuprofile)
 	}
 
-	if Settings.Pprof != "" {
+	if goreplay.Settings.Pprof != "" {
 		go func() {
-			log.Println(http.ListenAndServe(Settings.Pprof, nil))
+			log.Println(http.ListenAndServe(goreplay.Settings.Pprof, nil))
 		}()
 	}
 
 	closeCh := make(chan int)
-	emitter := NewEmitter()
-	go emitter.Start(plugins, Settings.Middleware)
-	if Settings.ExitAfter > 0 {
-		log.Printf("Running gor for a duration of %s\n", Settings.ExitAfter)
+	emitter := goreplay.NewEmitter()
+	go emitter.Start(plugins, goreplay.Settings.Middleware)
+	if goreplay.Settings.ExitAfter > 0 {
+		log.Printf("Running gor for a duration of %s\n", goreplay.Settings.ExitAfter)
 
-		time.AfterFunc(Settings.ExitAfter, func() {
-			log.Printf("gor run timeout %s\n", Settings.ExitAfter)
+		time.AfterFunc(goreplay.Settings.ExitAfter, func() {
+			log.Printf("gor run timeout %s\n", goreplay.Settings.ExitAfter)
 			close(closeCh)
 		})
 	}

docs/Capturing-and-replaying-traffic.md

@@ -37,6 +37,11 @@ sudo gor --input-raw :80 --input-raw-engine "raw_socket" --output-http "http://s
 
 You can read more about [[Replaying HTTP traffic]].
 
+You can use VXLAN or traffic mirroring from AWS to capture the traffic. The 4789 UDP port will be opened and that works as you are launched GoReplay on the source machine.
+
+```
+gor --input-raw :80 --input-raw-engine vxlan -output-stdout
+```
 
 ### Tracking original IP addresses
 You can use `--input-raw-realip-header` option to specify header name: If not blank, injects header with given name and real IP value to the request payload. Usually, this header should be named: `X-Real-IP`, but you can specify any name.

elasticsearch.go

@@ -1,14 +1,13 @@
-package main
+package goreplay
 
 import (
 	"encoding/json"
+	"github.com/buger/goreplay/proto"
 	"log"
 	"net/url"
 	"strings"
 	"time"
 
-	"github.com/buger/goreplay/proto"
-
 	elastigo "github.com/mattbaird/elastigo/lib"
 )
 

elasticsearch_test.go

@@ -1,4 +1,4 @@
-package main
+package goreplay
 
 import (
 	"testing"

emitter.go

@@ -1,14 +1,14 @@
-package main
+package goreplay
 
 import (
 	"fmt"
+	"github.com/buger/goreplay/internal/byteutils"
 	"hash/fnv"
 	"io"
 	"log"
 	"sync"
-	"time"
 
-	"github.com/buger/goreplay/byteutils"
+	"github.com/coocood/freecache"
 )
 
 // Emitter represents an abject to manage plugins communication
@@ -76,9 +76,7 @@ func (e *Emitter) Close() {
 func CopyMulty(src PluginReader, writers ...PluginWriter) error {
 	wIndex := 0
 	modifier := NewHTTPModifier(&Settings.ModifierConfig)
-	filteredRequests := make(map[string]int64)
-	filteredRequestsLastCleanTime := time.Now().UnixNano()
-	filteredCount := 0
+	filteredRequests := freecache.NewCache(200 * 1024 * 1024) // 200M
 
 	for {
 		msg, err := src.PluginRead()
@@ -97,7 +95,7 @@ func CopyMulty(src PluginReader, writers ...PluginWriter) error {
 				Debug(2, fmt.Sprintf("[EMITTER] Found malformed record %q from %q", msg.Meta, src))
 				continue
 			}
-			requestID := byteutils.SliceToString(meta[1])
+			requestID := meta[1]
 			// start a subroutine only when necessary
 			if Settings.Verbose >= 3 {
 				Debug(3, "[EMITTER] input: ", byteutils.SliceToString(msg.Meta[:len(msg.Meta)-1]), " from: ", src)
@@ -108,16 +106,15 @@ func CopyMulty(src PluginReader, writers ...PluginWriter) error {
 					msg.Data = modifier.Rewrite(msg.Data)
 					// If modifier tells to skip request
 					if len(msg.Data) == 0 {
-						filteredRequests[requestID] = time.Now().UnixNano()
-						filteredCount++
+						filteredRequests.Set(requestID, []byte{}, 60) //
 						continue
 					}
 					Debug(3, "[EMITTER] Rewritten input:", requestID, "from:", src)
 
 				} else {
-					if _, ok := filteredRequests[requestID]; ok {
-						delete(filteredRequests, requestID)
-						filteredCount--
+					_, err := filteredRequests.Get(requestID)
+					if err == nil {
+						filteredRequests.Del(requestID)
 						continue
 					}
 				}
@@ -158,20 +155,5 @@ func CopyMulty(src PluginReader, writers ...PluginWriter) error {
 				}
 			}
 		}
-
-		// Run GC on each 1000 request
-		if filteredCount > 0 && filteredCount%1000 == 0 {
-			// Clean up filtered requests for which we didn't get a response to filter
-			now := time.Now().UnixNano()
-			if now-filteredRequestsLastCleanTime > int64(60*time.Second) {
-				for k, v := range filteredRequests {
-					if now-v > int64(60*time.Second) {
-						delete(filteredRequests, k)
-						filteredCount--
-					}
-				}
-				filteredRequestsLastCleanTime = time.Now().UnixNano()
-			}
-		}
 	}
 }

emitter_test.go

@@ -1,4 +1,4 @@
-package main
+package goreplay
 
 import (
 	"fmt"

examples/middleware/echo.sh

@@ -8,7 +8,7 @@
 # 
 
 function log {
-    if [[ ! -v GOR_TEST ]]; then # if we are not testing
+    if [[ -n "$GOR_TEST" ]]; then # if we are not testing
     # Logging to stderr, because stdout/stdin used for data transfer
     >&2 echo "[DEBUG][ECHO] $1"
     fi

examples/middleware/token_modifier.go

@@ -24,9 +24,8 @@ import (
 	"bytes"
 	"encoding/hex"
 	"fmt"
-	"os"
-
 	"github.com/buger/goreplay/proto"
+	"os"
 )
 
 // requestID -> originalToken

go.mod

@@ -1,20 +1,80 @@
 module github.com/buger/goreplay
 
-go 1.15
+go 1.21
 
 require (
-	github.com/Shopify/sarama v1.26.4
-	github.com/araddon/gou v0.0.0-20190110011759-c797efecbb61 // indirect
-	github.com/aws/aws-sdk-go v1.33.2
+	github.com/Shopify/sarama v1.38.1
+	github.com/aws/aws-sdk-go v1.44.262
+	github.com/coocood/freecache v1.2.3
+	github.com/google/gopacket v1.1.20-0.20210429153827-3eaba0894325
+	github.com/gorilla/websocket v1.5.0
+	github.com/klauspost/compress v1.16.5 // indirect
+	github.com/mattbaird/elastigo v0.0.0-20170123220020-2fe47fd29e4b
+	github.com/stretchr/testify v1.8.2
+	github.com/xdg-go/scram v1.1.2
+	golang.org/x/net v0.34.0
+	golang.org/x/sys v0.29.0
+	k8s.io/apimachinery v0.27.1
+	k8s.io/client-go v0.27.1
+)
+
+require (
+	github.com/araddon/gou v0.0.0-20211019181548-e7d08105776c // indirect
 	github.com/bitly/go-hostpool v0.1.0 // indirect
 	github.com/bmizerany/assert v0.0.0-20160611221934-b7ed37b82869 // indirect
-	github.com/google/gopacket v1.1.20-0.20210429153827-3eaba0894325
-	github.com/klauspost/compress v1.10.10 // indirect
-	github.com/mattbaird/elastigo v0.0.0-20170123220020-2fe47fd29e4b
-	github.com/pierrec/lz4 v2.5.2+incompatible // indirect
-	github.com/rcrowley/go-metrics v0.0.0-20200313005456-10cdbea86bc0 // indirect
-	github.com/smartystreets/goconvey v1.6.4 // indirect
-	github.com/stretchr/testify v1.5.1
-	golang.org/x/net v0.0.0-20200707034311-ab3426394381
-	golang.org/x/sys v0.0.0-20200323222414-85ca7c5b95cd
+	github.com/cespare/xxhash/v2 v2.2.0 // indirect
+	github.com/davecgh/go-spew v1.1.1 // indirect
+	github.com/eapache/go-resiliency v1.3.0 // indirect
+	github.com/eapache/go-xerial-snappy v0.0.0-20230111030713-bf00bc1b83b6 // indirect
+	github.com/eapache/queue v1.1.0 // indirect
+	github.com/emicklei/go-restful/v3 v3.10.2 // indirect
+	github.com/go-logr/logr v1.2.4 // indirect
+	github.com/go-openapi/jsonpointer v0.19.6 // indirect
+	github.com/go-openapi/jsonreference v0.20.2 // indirect
+	github.com/go-openapi/swag v0.22.3 // indirect
+	github.com/gogo/protobuf v1.3.2 // indirect
+	github.com/golang/protobuf v1.5.3 // indirect
+	github.com/golang/snappy v0.0.4 // indirect
+	github.com/google/gnostic v0.6.9 // indirect
+	github.com/google/go-cmp v0.5.9 // indirect
+	github.com/google/gofuzz v1.2.0 // indirect
+	github.com/google/uuid v1.3.0 // indirect
+	github.com/hashicorp/errwrap v1.1.0 // indirect
+	github.com/hashicorp/go-multierror v1.1.1 // indirect
+	github.com/hashicorp/go-uuid v1.0.3 // indirect
+	github.com/jcmturner/aescts/v2 v2.0.0 // indirect
+	github.com/jcmturner/dnsutils/v2 v2.0.0 // indirect
+	github.com/jcmturner/gofork v1.7.6 // indirect
+	github.com/jcmturner/gokrb5/v8 v8.4.4 // indirect
+	github.com/jcmturner/rpc/v2 v2.0.3 // indirect
+	github.com/jmespath/go-jmespath v0.4.0 // indirect
+	github.com/josharian/intern v1.0.0 // indirect
+	github.com/json-iterator/go v1.1.12 // indirect
+	github.com/mailru/easyjson v0.7.7 // indirect
+	github.com/modern-go/concurrent v0.0.0-20180306012644-bacd9c7ef1dd // indirect
+	github.com/modern-go/reflect2 v1.0.2 // indirect
+	github.com/munnerz/goautoneg v0.0.0-20191010083416-a7dc8b61c822 // indirect
+	github.com/pierrec/lz4/v4 v4.1.17 // indirect
+	github.com/pmezard/go-difflib v1.0.0 // indirect
+	github.com/rcrowley/go-metrics v0.0.0-20201227073835-cf1acfcdf475 // indirect
+	github.com/smartystreets/goconvey v1.7.2 // indirect
+	github.com/xdg-go/pbkdf2 v1.0.0 // indirect
+	github.com/xdg-go/stringprep v1.0.4 // indirect
+	golang.org/x/crypto v0.32.0 // indirect
+	golang.org/x/oauth2 v0.8.0 // indirect
+	golang.org/x/term v0.28.0 // indirect
+	golang.org/x/text v0.21.0 // indirect
+	golang.org/x/time v0.3.0 // indirect
+	google.golang.org/appengine v1.6.7 // indirect
+	google.golang.org/protobuf v1.30.0 // indirect
+	gopkg.in/inf.v0 v0.9.1 // indirect
+	gopkg.in/yaml.v2 v2.4.0 // indirect
+	gopkg.in/yaml.v3 v3.0.1 // indirect
+	k8s.io/api v0.27.1 // indirect
+	k8s.io/klog/v2 v2.100.1 // indirect
+	k8s.io/kube-openapi v0.0.0-20230501164219-8b0f38b5fd1f // indirect
+	k8s.io/utils v0.0.0-20230505201702-9f6742963106 // indirect
+	sigs.k8s.io/json v0.0.0-20221116044647-bc3834ca7abd // indirect
+	sigs.k8s.io/structured-merge-diff/v4 v4.2.3 // indirect
+	sigs.k8s.io/yaml v1.3.0 // indirect
 )

go.sum

@@ -1,121 +1,384 @@
-github.com/Shopify/sarama v1.26.4 h1:+17TxUq/PJEAfZAll0T7XJjSgQWCpaQSoki/x5yN8o8=
-github.com/Shopify/sarama v1.26.4/go.mod h1:NbSGBSSndYaIhRcBtY9V0U7AyH+x71bG668AuWys/yU=
-github.com/Shopify/toxiproxy v2.1.4+incompatible h1:TKdv8HiTLgE5wdJuEML90aBgNWsokNbMijUGhmcoBJc=
-github.com/Shopify/toxiproxy v2.1.4+incompatible/go.mod h1:OXgGpZ6Cli1/URJOF1DMxUHB2q5Ap20/P/eIdh4G0pI=
-github.com/araddon/gou v0.0.0-20190110011759-c797efecbb61 h1:Xz25cuW4REGC5W5UtpMU3QItMIImag615HiQcRbxqKQ=
-github.com/araddon/gou v0.0.0-20190110011759-c797efecbb61/go.mod h1:ikc1XA58M+Rx7SEbf0bLJCfBkwayZ8T5jBo5FXK8Uz8=
-github.com/aws/aws-sdk-go v1.33.2 h1:8TVrnPnSD7I+AmDp66xBUvS3K0J+jH09YXdrkJ34ey0=
-github.com/aws/aws-sdk-go v1.33.2/go.mod h1:5zCpMtNQVjRREroY7sYe8lOMRSxkhG6MZveU8YkpAk0=
+cloud.google.com/go v0.26.0/go.mod h1:aQUYkXzVsufM+DwF1aE+0xfcU+56JwCaLick0ClmMTw=
+cloud.google.com/go v0.34.0/go.mod h1:aQUYkXzVsufM+DwF1aE+0xfcU+56JwCaLick0ClmMTw=
+github.com/BurntSushi/toml v0.3.1/go.mod h1:xHWCNGjB5oqiDr8zfno3MHue2Ht5sIBksp03qcyfWMU=
+github.com/OneOfOne/xxhash v1.2.2/go.mod h1:HSdplMjZKSmBqAxg5vPj2TmRDmfkzw+cTzAElWljhcU=
+github.com/Shopify/sarama v1.38.1 h1:lqqPUPQZ7zPqYlWpTh+LQ9bhYNu2xJL6k1SJN4WVe2A=
+github.com/Shopify/sarama v1.38.1/go.mod h1:iwv9a67Ha8VNa+TifujYoWGxWnu2kNVAQdSdZ4X2o5g=
+github.com/Shopify/toxiproxy/v2 v2.5.0 h1:i4LPT+qrSlKNtQf5QliVjdP08GyAH8+BUIc9gT0eahc=
+github.com/Shopify/toxiproxy/v2 v2.5.0/go.mod h1:yhM2epWtAmel9CB8r2+L+PCmhH6yH2pITaPAo7jxJl0=
+github.com/antihax/optional v1.0.0/go.mod h1:uupD/76wgC+ih3iEmQUL+0Ugr19nfwCT1kdvxnR2qWY=
+github.com/araddon/gou v0.0.0-20211019181548-e7d08105776c h1:XUqw//RExYoxW4Eie8MuKp8sEDAZI1gMHX/daUFgZww=
+github.com/araddon/gou v0.0.0-20211019181548-e7d08105776c/go.mod h1:ikc1XA58M+Rx7SEbf0bLJCfBkwayZ8T5jBo5FXK8Uz8=
+github.com/aws/aws-sdk-go v1.44.262 h1:gyXpcJptWoNkK+DiAiaBltlreoWKQXjAIh6FRh60F+I=
+github.com/aws/aws-sdk-go v1.44.262/go.mod h1:aVsgQcEevwlmQ7qHE9I3h+dtQgpqhFB+i8Phjh7fkwI=
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 github.com/bmizerany/assert v0.0.0-20160611221934-b7ed37b82869/go.mod h1:Ekp36dRnpXw/yCqJaO+ZrUyxD+3VXMFFr56k5XYrpB4=
+github.com/buger/jsonparser v1.1.1/go.mod h1:6RYKKt7H4d4+iWqouImQ9R2FZql3VbhNgx27UK13J/0=
+github.com/census-instrumentation/opencensus-proto v0.2.1/go.mod h1:f6KPmirojxKA12rnyqOA5BBL4O983OfeGPqjHWSTneU=
+github.com/cespare/xxhash v1.1.0/go.mod h1:XrSqR1VqqWfGrhpAt58auRo0WTKS1nRRg3ghfAqPWnc=
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+github.com/client9/misspell v0.3.4/go.mod h1:qj6jICC3Q7zFZvVWo7KLAzC3yx5G7kyvSDkc90ppPyw=
+github.com/cncf/udpa/go v0.0.0-20191209042840-269d4d468f6f/go.mod h1:M8M6+tZqaGXZJjfX53e64911xZQV5JYwmTeXPW+k8Sc=
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+github.com/coocood/freecache v1.2.3 h1:lcBwpZrwBZRZyLk/8EMyQVXRiFl663cCuMOrjCALeto=
+github.com/coocood/freecache v1.2.3/go.mod h1:RBUWa/Cy+OHdfTGFEhEuE1pMCMX51Ncizj7rthiQ3vk=
+github.com/creack/pty v1.1.9/go.mod h1:oKZEueFk5CKHvIhNR5MUki03XCEU+Q6VDXinZuGJ33E=
 github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
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 github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
-github.com/eapache/go-resiliency v1.2.0 h1:v7g92e/KSN71Rq7vSThKaWIq68fL4YHvWyiUKorFR1Q=
-github.com/eapache/go-resiliency v1.2.0/go.mod h1:kFI+JgMyC7bLPUVY133qvEBtVayf5mFgVsvEsIPBvNs=
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-github.com/eapache/go-xerial-snappy v0.0.0-20180814174437-776d5712da21/go.mod h1:+020luEh2TKB4/GOp8oxxtq0Daoen/Cii55CzbTV6DU=
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-github.com/frankban/quicktest v1.7.2 h1:2QxQoC1TS09S7fhCPsrvqYdvP1H5M1P1ih5ABm3BTYk=
-github.com/frankban/quicktest v1.7.2/go.mod h1:jaStnuzAqU1AJdCO0l53JDCJrVDKcS03DbaAcR7Ks/o=
-github.com/go-sql-driver/mysql v1.5.0/go.mod h1:DCzpHaOWr8IXmIStZouvnhqoel9Qv2LBy8hT2VhHyBg=
-github.com/golang/snappy v0.0.1 h1:Qgr9rKW7uDUkrbSmQeiDsGa8SjGyCOGtuasMWwvp2P4=
-github.com/golang/snappy v0.0.1/go.mod h1:/XxbfmMg8lxefKM7IXC3fBNl/7bRcc72aCRzEWrmP2Q=
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+github.com/go-logr/logr v1.2.0/go.mod h1:jdQByPbusPIv2/zmleS9BjJVeZ6kBagPoEUsqbVz/1A=
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+github.com/go-openapi/jsonpointer v0.19.6 h1:eCs3fxoIi3Wh6vtgmLTOjdhSpiqphQ+DaPn38N2ZdrE=
+github.com/go-openapi/jsonpointer v0.19.6/go.mod h1:osyAmYz/mB/C3I+WsTTSgw1ONzaLJoLCyoi6/zppojs=
+github.com/go-openapi/jsonreference v0.20.2 h1:3sVjiK66+uXK/6oQ8xgcRKcFgQ5KXa2KvnJRumpMGbE=
+github.com/go-openapi/jsonreference v0.20.2/go.mod h1:Bl1zwGIM8/wsvqjsOQLJ/SH+En5Ap4rVB5KVcIDZG2k=
+github.com/go-openapi/swag v0.22.3 h1:yMBqmnQ0gyZvEb/+KzuWZOXgllrXT4SADYbvDaXHv/g=
+github.com/go-openapi/swag v0.22.3/go.mod h1:UzaqsxGiab7freDnrUUra0MwWfN/q7tE4j+VcZ0yl14=
+github.com/go-task/slim-sprig v0.0.0-20210107165309-348f09dbbbc0 h1:p104kn46Q8WdvHunIJ9dAyjPVtrBPhSr3KT2yUst43I=
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gor_stat.go

@@ -1,4 +1,4 @@
-package main
+package goreplay
 
 import (
 	"runtime"

http_modifier.go

@@ -1,12 +1,11 @@
-package main
+package goreplay
 
 import (
 	"bytes"
 	"encoding/base64"
+	"github.com/buger/goreplay/proto"
 	"hash/fnv"
 	"strings"
-
-	"github.com/buger/goreplay/proto"
 )
 
 type HTTPModifier struct {

http_modifier_settings.go

@@ -1,4 +1,4 @@
-package main
+package goreplay
 
 import (
 	"errors"
@@ -24,9 +24,7 @@ type HTTPModifierConfig struct {
 	Methods                HTTPMethods                `json:"http-allow-method"`
 }
 
-//
 // Handling of --http-allow-header, --http-disallow-header options
-//
 type headerFilter struct {
 	name   []byte
 	regexp *regexp.Regexp
@@ -56,9 +54,7 @@ func (h *HTTPHeaderFilters) Set(value string) error {
 	return nil
 }
 
-//
 // Handling of --http-basic-auth-filter option
-//
 type basicAuthFilter struct {
 	regexp *regexp.Regexp
 }
@@ -82,9 +78,7 @@ func (h *HTTPHeaderBasicAuthFilters) Set(value string) error {
 	return nil
 }
 
-//
 // Handling of --http-allow-header-hash and --http-allow-param-hash options
-//
 type hashFilter struct {
 	name    []byte
 	percent uint32
@@ -129,9 +123,7 @@ func (h *HTTPHashFilters) Set(value string) error {
 	return nil
 }
 
-//
 // Handling of --http-set-header option
-//
 type httpHeader struct {
 	Name  string
 	Value string
@@ -160,9 +152,7 @@ func (h *HTTPHeaders) Set(value string) error {
 	return nil
 }
 
-//
 // Handling of --http-set-param option
-//
 type httpParam struct {
 	Name  []byte
 	Value []byte
@@ -208,9 +198,7 @@ func (h *HTTPMethods) Set(value string) error {
 	return nil
 }
 
-//
 // Handling of --http-rewrite-url option
-//
 type urlRewrite struct {
 	src    *regexp.Regexp
 	target []byte
@@ -237,9 +225,7 @@ func (r *URLRewriteMap) Set(value string) error {
 	return nil
 }
 
-//
 // Handling of --http-rewrite-header option
-//
 type headerRewrite struct {
 	header []byte
 	src    *regexp.Regexp
@@ -275,9 +261,7 @@ func (r *HeaderRewriteMap) Set(value string) error {
 	return nil
 }
 
-//
 // Handling of --http-allow-url option
-//
 type urlRegexp struct {
 	regexp *regexp.Regexp
 }

http_modifier_settings_test.go

@@ -1,4 +1,4 @@
-package main
+package goreplay
 
 import (
 	"testing"

http_modifier_test.go

@@ -1,10 +1,9 @@
-package main
+package goreplay
 
 import (
 	"bytes"
-	"testing"
-
 	"github.com/buger/goreplay/proto"
+	"testing"
 )
 
 func TestHTTPModifierWithoutConfig(t *testing.T) {

http_prettifier.go

@@ -1,14 +1,13 @@
-package main
+package goreplay
 
 import (
 	"bytes"
 	"compress/gzip"
 	"fmt"
+	"github.com/buger/goreplay/proto"
 	"io/ioutil"
 	"net/http/httputil"
 	"strconv"
-
-	"github.com/buger/goreplay/proto"
 )
 
 func prettifyHTTP(p []byte) []byte {

http_prettifier_test.go

@@ -1,12 +1,11 @@
-package main
+package goreplay
 
 import (
 	"bytes"
 	"compress/gzip"
+	"github.com/buger/goreplay/proto"
 	"strconv"
 	"testing"
-
-	"github.com/buger/goreplay/proto"
 )
 
 func TestHTTPPrettifierGzip(t *testing.T) {

input_dummy.go

@@ -1,4 +1,4 @@
-package main
+package goreplay
 
 import (
 	"time"
@@ -36,16 +36,13 @@ func (i *DummyInput) PluginRead() (*Message, error) {
 func (i *DummyInput) emit() {
 	ticker := time.NewTicker(time.Second)
 
-	for {
-		select {
-		case <-ticker.C:
-			uuid := uuid()
-			reqh := payloadHeader(RequestPayload, uuid, time.Now().UnixNano(), -1)
-			i.data <- append(reqh, []byte("GET / HTTP/1.1\r\nHost: www.w3.org\r\nUser-Agent: Go 1.1 package http\r\nAccept-Encoding: gzip\r\n\r\n")...)
+	for range ticker.C {
+		uuid := uuid()
+		reqh := payloadHeader(RequestPayload, uuid, time.Now().UnixNano(), -1)
+		i.data <- append(reqh, []byte("GET / HTTP/1.1\r\nHost: www.w3.org\r\nUser-Agent: Go 1.1 package http\r\nAccept-Encoding: gzip\r\n\r\n")...)
 
-			resh := payloadHeader(ResponsePayload, uuid, time.Now().UnixNano()+1, 1)
-			i.data <- append(resh, []byte("HTTP/1.1 200 OK\r\nContent-Length: 0\r\n\r\n")...)
-		}
+		resh := payloadHeader(ResponsePayload, uuid, time.Now().UnixNano()+1, 1)
+		i.data <- append(resh, []byte("HTTP/1.1 200 OK\r\nContent-Length: 0\r\n\r\n")...)
 	}
 }
 

input_file.go

@@ -1,4 +1,4 @@
-package main
+package goreplay
 
 import (
 	"bufio"
@@ -63,6 +63,8 @@ type fileInputReader struct {
 	s3        bool
 	queue     payloadQueue
 	readDepth int
+	dryRun    bool
+	path      string
 }
 
 func (f *fileInputReader) parse(init chan struct{}) error {
@@ -70,8 +72,11 @@ func (f *fileInputReader) parse(init chan struct{}) error {
 	var buffer bytes.Buffer
 	var initialized bool
 
+	lineNum := 0
+
 	for {
 		line, err := f.reader.ReadBytes('\n')
+		lineNum++
 
 		if err != nil {
 			if err != io.EOF {
@@ -92,6 +97,12 @@ func (f *fileInputReader) parse(init chan struct{}) error {
 			asBytes := buffer.Bytes()
 			meta := payloadMeta(asBytes)
 
+			if len(meta) < 3 {
+				Debug(1, fmt.Sprintf("Found malformed record, file: %s, line %d", f.path, lineNum))
+				buffer = bytes.Buffer{}
+				continue
+			}
+
 			timestamp, _ := strconv.ParseInt(string(meta[2]), 10, 64)
 			data := asBytes[:len(asBytes)-1]
 
@@ -112,7 +123,9 @@ func (f *fileInputReader) parse(init chan struct{}) error {
 					initialized = true
 				}
 
-				time.Sleep(100 * time.Millisecond)
+				if !f.dryRun {
+					time.Sleep(100 * time.Millisecond)
+				}
 			}
 
 			buffer = bytes.Buffer{}
@@ -133,7 +146,9 @@ func (f *fileInputReader) wait() {
 			return
 		}
 
-		time.Sleep(100 * time.Millisecond)
+		if !f.dryRun {
+			time.Sleep(100 * time.Millisecond)
+		}
 	}
 
 	return
@@ -149,7 +164,7 @@ func (f *fileInputReader) Close() error {
 	return nil
 }
 
-func newFileInputReader(path string, readDepth int) *fileInputReader {
+func newFileInputReader(path string, readDepth int, dryRun bool) *fileInputReader {
 	var file io.ReadCloser
 	var err error
 
@@ -164,7 +179,7 @@ func newFileInputReader(path string, readDepth int) *fileInputReader {
 		return nil
 	}
 
-	r := &fileInputReader{file: file, closed: 0, readDepth: readDepth}
+	r := &fileInputReader{path: path, file: file, closed: 0, readDepth: readDepth, dryRun: dryRun}
 	if strings.HasSuffix(path, ".gz") {
 		gzReader, err := gzip.NewReader(file)
 		if err != nil {
@@ -223,6 +238,16 @@ func NewFileInput(path string, loop bool, readDepth int, maxWait time.Duration,
 	return
 }
 
+func parseS3Url(path string) (bucket, key string) {
+	path = path[5:] // stripping `s3://`
+	sep := strings.IndexByte(path, '/')
+
+	bucket = path[:sep]
+	key = path[sep+1:]
+
+	return bucket, key
+}
+
 func (i *FileInput) init() (err error) {
 	defer i.mu.Unlock()
 	i.mu.Lock()
@@ -242,7 +267,7 @@ func (i *FileInput) init() (err error) {
 
 		resp, err := svc.ListObjects(params)
 		if err != nil {
-			Debug(0, "[INPUT-FILE] Error while retreiving list of files from S3", i.path, err)
+			Debug(2, "[INPUT-FILE] Error while retrieving list of files from S3", i.path, err)
 			return err
 		}
 
@@ -250,19 +275,19 @@ func (i *FileInput) init() (err error) {
 			matches = append(matches, "s3://"+bucket+"/"+(*c.Key))
 		}
 	} else if matches, err = filepath.Glob(i.path); err != nil {
-		Debug(0, "[INPUT-FILE] Wrong file pattern", i.path, err)
+		Debug(2, "[INPUT-FILE] Wrong file pattern", i.path, err)
 		return
 	}
 
 	if len(matches) == 0 {
-		Debug(0, "[INPUT-FILE] No files match pattern: ", i.path)
-		return errors.New("No matching files")
+		Debug(2, "[INPUT-FILE] No files match pattern: ", i.path)
+		return errors.New("no matching files")
 	}
 
 	i.readers = make([]*fileInputReader, len(matches))
 
 	for idx, p := range matches {
-		i.readers[idx] = newFileInputReader(p, i.readDepth)
+		i.readers[idx] = newFileInputReader(p, i.readDepth, i.dryRun)
 	}
 
 	i.stats.Add("reader_count", int64(len(matches)))
@@ -395,7 +420,7 @@ func (i *FileInput) emit() {
 	i.stats.Set("max_wait", time.Duration(maxWait))
 	i.stats.Set("min_wait", time.Duration(minWait))
 
-	Debug(0, fmt.Sprintf("[INPUT-FILE] FileInput: end of file '%s'\n", i.path))
+	Debug(2, fmt.Sprintf("[INPUT-FILE] FileInput: end of file '%s'\n", i.path))
 
 	if i.dryRun {
 		fmt.Printf("Records found: %v\nFiles processed: %v\nBytes processed: %v\nMax wait: %v\nMin wait: %v\nFirst wait: %v\nIt will take `%v` to replay at current speed.\nFound %v records with out of order timestamp\n",

input_file_test.go

@@ -1,4 +1,4 @@
-package main
+package goreplay
 
 import (
 	"bytes"

input_http.go

@@ -1,4 +1,4 @@
-package main
+package goreplay
 
 import (
 	"log"

input_http_test.go

@@ -1,4 +1,4 @@
-package main
+package goreplay
 
 import (
 	"bytes"

input_kafka.go

@@ -1,9 +1,11 @@
-package main
+package goreplay
 
 import (
 	"encoding/json"
 	"log"
+	"strconv"
 	"strings"
+	"time"
 
 	"github.com/Shopify/sarama"
 	"github.com/Shopify/sarama/mocks"
@@ -12,15 +14,25 @@ import (
 // KafkaInput is used for receiving Kafka messages and
 // transforming them into HTTP payloads.
 type KafkaInput struct {
-	config    *InputKafkaConfig
-	consumers []sarama.PartitionConsumer
-	messages  chan *sarama.ConsumerMessage
-	quit      chan struct{}
+	config      *InputKafkaConfig
+	consumers   []sarama.PartitionConsumer
+	messages    chan *sarama.ConsumerMessage
+	speedFactor float64
+	quit        chan struct{}
+	kafkaTimer  *kafkaTimer
+}
+
+func getOffsetOfPartitions(offsetCfg string) int64 {
+	offset, err := strconv.ParseInt(offsetCfg, 10, 64)
+	if err != nil || offset < -2 {
+		log.Fatalln("Failed to parse offset: "+offsetCfg, err)
+	}
+	return offset
 }
 
 // NewKafkaInput creates instance of kafka consumer client with TLS config
-func NewKafkaInput(address string, config *InputKafkaConfig, tlsConfig *KafkaTLSConfig) *KafkaInput {
-	c := NewKafkaConfig(tlsConfig)
+func NewKafkaInput(offsetCfg string, config *InputKafkaConfig, tlsConfig *KafkaTLSConfig) *KafkaInput {
+	c := NewKafkaConfig(&config.SASLConfig, tlsConfig)
 
 	var con sarama.Consumer
 
@@ -41,14 +53,17 @@ func NewKafkaInput(address string, config *InputKafkaConfig, tlsConfig *KafkaTLS
 	}
 
 	i := &KafkaInput{
-		config:    config,
-		consumers: make([]sarama.PartitionConsumer, len(partitions)),
-		messages:  make(chan *sarama.ConsumerMessage, 256),
-		quit:      make(chan struct{}),
+		config:      config,
+		consumers:   make([]sarama.PartitionConsumer, len(partitions)),
+		messages:    make(chan *sarama.ConsumerMessage, 256),
+		speedFactor: 1,
+		quit:        make(chan struct{}),
+		kafkaTimer:  new(kafkaTimer),
 	}
+	i.config.Offset = offsetCfg
 
 	for index, partition := range partitions {
-		consumer, err := con.ConsumePartition(config.Topic, partition, sarama.OffsetNewest)
+		consumer, err := con.ConsumePartition(config.Topic, partition, getOffsetOfPartitions(offsetCfg))
 		if err != nil {
 			log.Fatalln("Failed to start Sarama(Kafka) partition consumer:", err)
 		}
@@ -86,12 +101,15 @@ func (i *KafkaInput) PluginRead() (*Message, error) {
 	case message = <-i.messages:
 	}
 
+	inputTs := ""
+
 	msg.Data = message.Value
 	if i.config.UseJSON {
 
 		var kafkaMessage KafkaMessage
 		json.Unmarshal(message.Value, &kafkaMessage)
 
+		inputTs = kafkaMessage.ReqTs
 		var err error
 		msg.Data, err = kafkaMessage.Dump()
 		if err != nil {
@@ -103,8 +121,11 @@ func (i *KafkaInput) PluginRead() (*Message, error) {
 	// does it have meta
 	if isOriginPayload(msg.Data) {
 		msg.Meta, msg.Data = payloadMetaWithBody(msg.Data)
+		inputTs = string(payloadMeta(msg.Meta)[2])
 	}
 
+	i.timeWait(inputTs)
+
 	return &msg, nil
 
 }
@@ -118,3 +139,45 @@ func (i *KafkaInput) Close() error {
 	close(i.quit)
 	return nil
 }
+
+func (i *KafkaInput) timeWait(curInputTs string) {
+	if i.config.Offset == "-1" || curInputTs == "" {
+		return
+	}
+
+	// implement for Kafka input showdown or speedup emitting
+	timer := i.kafkaTimer
+	curTs := time.Now().UnixNano()
+
+	curInput, err := strconv.ParseInt(curInputTs, 10, 64)
+
+	if timer.latestInputTs == 0 || timer.latestOutputTs == 0 {
+		timer.latestInputTs = curInput
+		timer.latestOutputTs = curTs
+		return
+	}
+
+	if err != nil {
+		log.Fatalln("Fatal to parse timestamp err: ", err)
+	}
+
+	diffTs := curInput - timer.latestInputTs
+	pastTs := curTs - timer.latestOutputTs
+
+	diff := diffTs - pastTs
+	if i.speedFactor != 1 {
+		diff = int64(float64(diff) / i.speedFactor)
+	}
+
+	if diff > 0 {
+		time.Sleep(time.Duration(diff))
+	}
+
+	timer.latestInputTs = curInput
+	timer.latestOutputTs = curTs
+}
+
+type kafkaTimer struct {
+	latestInputTs  int64
+	latestOutputTs int64
+}

input_kafka_test.go

@@ -1,4 +1,4 @@
-package main
+package goreplay
 
 import (
 	"testing"
@@ -16,7 +16,7 @@ func TestInputKafkaRAW(t *testing.T) {
 		map[string][]int32{"test": {0}},
 	)
 
-	input := NewKafkaInput("", &InputKafkaConfig{
+	input := NewKafkaInput("-1", &InputKafkaConfig{
 		consumer: consumer,
 		Topic:    "test",
 		UseJSON:  false,
@@ -42,7 +42,7 @@ func TestInputKafkaJSON(t *testing.T) {
 		map[string][]int32{"test": {0}},
 	)
 
-	input := NewKafkaInput("", &InputKafkaConfig{
+	input := NewKafkaInput("-1", &InputKafkaConfig{
 		consumer: consumer,
 		Topic:    "test",
 		UseJSON:  true,

input_raw.go

@@ -1,57 +1,60 @@
-package main
+package goreplay
 
 import (
 	"context"
 	"fmt"
+	"github.com/buger/goreplay/internal/capture"
+	"github.com/buger/goreplay/internal/tcp"
+	"github.com/buger/goreplay/proto"
 	"log"
 	"net"
 	"strconv"
 	"strings"
 	"sync"
-	"time"
-
-	"github.com/buger/goreplay/capture"
-	"github.com/buger/goreplay/proto"
-	"github.com/buger/goreplay/size"
-	"github.com/buger/goreplay/tcp"
 )
 
 // RAWInputConfig represents configuration that can be applied on raw input
-type RAWInputConfig struct {
-	capture.PcapOptions
-	Expire          time.Duration      `json:"input-raw-expire"`
-	CopyBufferSize  size.Size          `json:"copy-buffer-size"`
-	Engine          capture.EngineType `json:"input-raw-engine"`
-	TrackResponse   bool               `json:"input-raw-track-response"`
-	Protocol        tcp.TCPProtocol    `json:"input-raw-protocol"`
-	RealIPHeader    string             `json:"input-raw-realip-header"`
-	Stats           bool               `json:"input-raw-stats"`
-	AllowIncomplete bool               `json:"input-raw-allow-incomplete"`
-	quit            chan bool          // Channel used only to indicate goroutine should shutdown
-	host            string
-	ports           []uint16
-}
+type RAWInputConfig = capture.PcapOptions
 
 // RAWInput used for intercepting traffic for given address
 type RAWInput struct {
 	sync.Mutex
-	RAWInputConfig
+	config         RAWInputConfig
 	messageStats   []tcp.Stats
 	listener       *capture.Listener
 	messageParser  *tcp.MessageParser
 	cancelListener context.CancelFunc
 	closed         bool
+
+	quit  chan bool // Channel used only to indicate goroutine should shutdown
+	host  string
+	ports []uint16
 }
 
 // NewRAWInput constructor for RAWInput. Accepts raw input config as arguments.
 func NewRAWInput(address string, config RAWInputConfig) (i *RAWInput) {
 	i = new(RAWInput)
-	i.RAWInputConfig = config
+	i.config = config
 	i.quit = make(chan bool)
 
 	host, _ports, err := net.SplitHostPort(address)
 	if err != nil {
-		log.Fatalf("input-raw: error while parsing address: %s", err)
+		// If we are reading pcap file, no port needed
+		if strings.HasSuffix(address, "pcap") {
+			host = address
+			_ports = "0"
+			err = nil
+		} else if strings.HasPrefix(address, "k8s://") {
+			portIndex := strings.LastIndex(address, ":")
+			host = address[:portIndex]
+			_ports = address[portIndex+1:]
+		} else {
+			log.Fatalf("input-raw: error while parsing address: %s", err)
+		}
+	}
+
+	if strings.HasSuffix(host, "pcap") {
+		i.config.Engine = capture.EnginePcapFile
 	}
 
 	var ports []uint16
@@ -90,8 +93,8 @@ func (i *RAWInput) PluginRead() (*Message, error) {
 	var msgType byte = ResponsePayload
 	if msgTCP.Direction == tcp.DirIncoming {
 		msgType = RequestPayload
-		if i.RealIPHeader != "" {
-			msg.Data = proto.SetHeader(msg.Data, []byte(i.RealIPHeader), []byte(msgTCP.SrcAddr))
+		if i.config.RealIPHeader != "" {
+			msg.Data = proto.SetHeader(msg.Data, []byte(i.config.RealIPHeader), []byte(msgTCP.SrcAddr))
 		}
 	}
 	msg.Meta = payloadHeader(msgType, msgTCP.UUID(), msgTCP.Start.UnixNano(), msgTCP.End.UnixNano()-msgTCP.Start.UnixNano())
@@ -104,7 +107,7 @@ func (i *RAWInput) PluginRead() (*Message, error) {
 	if msgTCP.TimedOut {
 		Debug(2, "[INPUT-RAW] message timeout reached, increase input-raw-expire")
 	}
-	if i.Stats {
+	if i.config.Stats {
 		stat := msgTCP.Stats
 		go i.addStats(stat)
 	}
@@ -114,11 +117,11 @@ func (i *RAWInput) PluginRead() (*Message, error) {
 
 func (i *RAWInput) listen(address string) {
 	var err error
-	i.listener, err = capture.NewListener(i.host, i.ports, "", i.Engine, i.Protocol, i.TrackResponse, i.Expire, i.AllowIncomplete)
+	i.listener, err = capture.NewListener(i.host, i.ports, i.config)
 	if err != nil {
 		log.Fatal(err)
 	}
-	i.listener.SetPcapOptions(i.PcapOptions)
+
 	err = i.listener.Activate()
 	if err != nil {
 		log.Fatal(err)

input_raw_test.go

@@ -1,7 +1,10 @@
-package main
+package goreplay
 
 import (
 	"bytes"
+	"github.com/buger/goreplay/internal/capture"
+	"github.com/buger/goreplay/internal/tcp"
+	"github.com/buger/goreplay/proto"
 	"io/ioutil"
 	"net"
 	"net/http"
@@ -13,10 +16,6 @@ import (
 	"sync/atomic"
 	"testing"
 	"time"
-
-	"github.com/buger/goreplay/capture"
-	"github.com/buger/goreplay/proto"
-	"github.com/buger/goreplay/tcp"
 )
 
 const testRawExpire = time.Millisecond * 200
@@ -122,10 +121,11 @@ func TestRAWInputNoKeepAlive(t *testing.T) {
 	output := NewTestOutput(func(msg *Message) {
 		if msg.Meta[0] == '1' {
 			atomic.AddInt64(&reqCounter, 1)
+			wg.Done()
 		} else {
 			atomic.AddInt64(&respCounter, 1)
+			wg.Done()
 		}
-		wg.Done()
 	})
 
 	plugins := &InOutPlugins{

input_tcp.go

@@ -1,4 +1,4 @@
-package main
+package goreplay
 
 import (
 	"bufio"

input_tcp_test.go

@@ -1,4 +1,4 @@
-package main
+package goreplay
 
 import (
 	"bytes"

internal/capture/af_packet.go

@@ -1,4 +1,4 @@
-// +build !linux
+//go:build !linux
 
 package capture
 

internal/capture/af_packet_linux.go

@@ -1,4 +1,4 @@
-// +build linux
+//go:build linux
 
 package capture
 

internal/capture/capture.go

@@ -5,6 +5,9 @@ import (
 	"errors"
 	"expvar"
 	"fmt"
+	"github.com/buger/goreplay/internal/size"
+	"github.com/buger/goreplay/internal/tcp"
+	"github.com/buger/goreplay/proto"
 	"io"
 	"log"
 	"net"
@@ -15,13 +18,13 @@ import (
 	"syscall"
 	"time"
 
-	"github.com/buger/goreplay/proto"
-	"github.com/buger/goreplay/size"
-	"github.com/buger/goreplay/tcp"
-
 	"github.com/google/gopacket"
 	"github.com/google/gopacket/layers"
 	"github.com/google/gopacket/pcap"
+
+	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
+	"k8s.io/client-go/kubernetes"
+	"k8s.io/client-go/rest"
 )
 
 var stats *expvar.Map
@@ -38,40 +41,54 @@ type PcapStatProvider interface {
 	Stats() (*pcap.Stats, error)
 }
 
+type PcapSetFilter interface {
+	SetBPFFilter(string) error
+}
+
 // PcapOptions options that can be set on a pcap capture handle,
 // these options take effect on inactive pcap handles
 type PcapOptions struct {
-	BufferTimeout time.Duration `json:"input-raw-buffer-timeout"`
-	TimestampType string        `json:"input-raw-timestamp-type"`
-	BPFFilter     string        `json:"input-raw-bpf-filter"`
-	BufferSize    size.Size     `json:"input-raw-buffer-size"`
-	Promiscuous   bool          `json:"input-raw-promisc"`
-	Monitor       bool          `json:"input-raw-monitor"`
-	Snaplen       bool          `json:"input-raw-override-snaplen"`
+	BufferTimeout   time.Duration   `json:"input-raw-buffer-timeout"`
+	TimestampType   string          `json:"input-raw-timestamp-type"`
+	BPFFilter       string          `json:"input-raw-bpf-filter"`
+	BufferSize      size.Size       `json:"input-raw-buffer-size"`
+	Promiscuous     bool            `json:"input-raw-promisc"`
+	Monitor         bool            `json:"input-raw-monitor"`
+	Snaplen         bool            `json:"input-raw-override-snaplen"`
+	Engine          EngineType      `json:"input-raw-engine"`
+	VXLANPort       int             `json:"input-raw-vxlan-port"`
+	VXLANVNIs       []int           `json:"input-raw-vxlan-vni"`
+	VLAN            bool            `json:"input-raw-vlan"`
+	VLANVIDs        []int           `json:"input-raw-vlan-vid"`
+	Expire          time.Duration   `json:"input-raw-expire"`
+	TrackResponse   bool            `json:"input-raw-track-response"`
+	Protocol        tcp.TCPProtocol `json:"input-raw-protocol"`
+	RealIPHeader    string          `json:"input-raw-realip-header"`
+	Stats           bool            `json:"input-raw-stats"`
+	AllowIncomplete bool            `json:"input-raw-allow-incomplete"`
+	IgnoreInterface []string        `json:"input-raw-ignore-interface"`
+	Transport       string
 }
 
 // Listener handle traffic capture, this is its representation.
 type Listener struct {
 	sync.Mutex
-	Transport  string       // transport layer default to tcp
+
+	config PcapOptions
+
 	Activate   func() error // function is used to activate the engine. it must be called before reading packets
 	Handles    map[string]packetHandle
 	Interfaces []pcap.Interface
 	loopIndex  int
 	Reading    chan bool // this channel is closed when the listener has started reading packets
-	PcapOptions
-	Engine          EngineType
-	ports           []uint16 // src or/and dst ports
-	trackResponse   bool
-	expiry          time.Duration
-	allowIncomplete bool
-	messages        chan *tcp.Message
-	protocol        tcp.TCPProtocol
+	messages   chan *tcp.Message
 
-	host string // pcap file name or interface (name, hardware addr, index or ip address)
+	ports []uint16
+	host  string // pcap file name or interface (name, hardware addr, index or ip address)
 
 	closeDone chan struct{}
 	quit      chan struct{}
+	closed    bool
 }
 
 type packetHandle struct {
@@ -88,6 +105,7 @@ const (
 	EnginePcapFile
 	EngineRawSocket
 	EngineAFPacket
+	EngineVXLAN
 )
 
 // Set is here so that EngineType can implement flag.Var
@@ -101,6 +119,8 @@ func (eng *EngineType) Set(v string) error {
 		*eng = EngineRawSocket
 	case "af_packet":
 		*eng = EngineAFPacket
+	case "vxlan":
+		*eng = EngineVXLAN
 	default:
 		return fmt.Errorf("invalid engine %s", v)
 	}
@@ -117,6 +137,8 @@ func (eng *EngineType) String() (e string) {
 		e = "raw_socket"
 	case EngineAFPacket:
 		e = "af_packet"
+	case EngineVXLAN:
+		e = "vxlan"
 	default:
 		e = ""
 	}
@@ -126,7 +148,7 @@ func (eng *EngineType) String() (e string) {
 // NewListener creates and initialize a new Listener. if transport or/and engine are invalid/unsupported
 // is "tcp" and "pcap", are assumed. l.Engine and l.Transport can help to get the values used.
 // if there is an error it will be associated with getting network interfaces
-func NewListener(host string, ports []uint16, transport string, engine EngineType, protocol tcp.TCPProtocol, trackResponse bool, expiry time.Duration, allowIncomplete bool) (l *Listener, err error) {
+func NewListener(host string, ports []uint16, config PcapOptions) (l *Listener, err error) {
 	l = &Listener{}
 
 	l.host = host
@@ -135,34 +157,32 @@ func NewListener(host string, ports []uint16, transport string, engine EngineTyp
 	}
 	l.ports = ports
 
-	l.Transport = "tcp"
-	if transport != "" {
-		l.Transport = transport
-	}
+	l.config = config
+	l.config.Transport = "tcp"
 	l.Handles = make(map[string]packetHandle)
-	l.trackResponse = trackResponse
+
 	l.closeDone = make(chan struct{})
 	l.quit = make(chan struct{})
 	l.Reading = make(chan bool)
-	l.expiry = expiry
-	l.allowIncomplete = allowIncomplete
-	l.protocol = protocol
 	l.messages = make(chan *tcp.Message, 10000)
 
-	switch engine {
+	if strings.HasPrefix(l.host, "k8s://") {
+		l.config.BPFFilter = l.Filter(pcap.Interface{}, k8sIPs(l.host[6:])...)
+	}
+
+	switch config.Engine {
 	default:
-		l.Engine = EnginePcap
 		l.Activate = l.activatePcap
 	case EngineRawSocket:
-		l.Engine = EngineRawSocket
 		l.Activate = l.activateRawSocket
 	case EngineAFPacket:
-		l.Engine = EngineAFPacket
 		l.Activate = l.activateAFPacket
 	case EnginePcapFile:
-		l.Engine = EnginePcapFile
 		l.Activate = l.activatePcapFile
 		return
+	case EngineVXLAN:
+		l.Activate = l.activateVxLanSocket
+		return
 	}
 
 	err = l.setInterfaces()
@@ -172,17 +192,73 @@ func NewListener(host string, ports []uint16, transport string, engine EngineTyp
 	return
 }
 
-// SetPcapOptions set pcap options for all yet to be actived pcap handles
-// setting this on already activated handles will not have any effect
-func (l *Listener) SetPcapOptions(opts PcapOptions) {
-	l.PcapOptions = opts
-}
-
 // Listen listens for packets from the handles, and call handler on every packet received
 // until the context done signal is sent or there is unrecoverable error on all handles.
 // this function must be called after activating pcap handles
 func (l *Listener) Listen(ctx context.Context) (err error) {
-	l.read()
+	l.Lock()
+	for key, handle := range l.Handles {
+		go l.readHandle(key, handle)
+	}
+	l.Unlock()
+
+	go func() {
+		for {
+			time.Sleep(time.Second)
+
+			if l.closed {
+				return
+			}
+
+			// Check for Pod IP changes
+			if strings.HasPrefix(l.host, "k8s://") {
+				newFilter := l.Filter(pcap.Interface{}, k8sIPs(l.host[6:])...)
+				if newFilter != l.config.BPFFilter {
+					fmt.Println("k8s pods configuration changed, new filter: ", newFilter)
+					for _, h := range l.Handles {
+						if _, ok := h.handler.(PcapSetFilter); ok {
+							h.handler.(PcapSetFilter).SetBPFFilter(newFilter)
+						}
+					}
+
+					l.config.BPFFilter = newFilter
+				}
+			}
+
+			var prevInterfaces []string
+			for _, in := range l.Interfaces {
+				prevInterfaces = append(prevInterfaces, in.Name)
+			}
+			l.setInterfaces()
+
+			for _, in := range l.Interfaces {
+				var found bool
+
+				for _, prev := range prevInterfaces {
+					if in.Name == prev {
+						found = true
+					}
+				}
+
+				if !found {
+					fmt.Println("Found new interface:", in.Name)
+					l.Lock()
+					l.Activate()
+
+					for key, handle := range l.Handles {
+						if key == in.Name {
+							fmt.Println("Activating capture on:", in.Name)
+							go l.readHandle(key, handle)
+							break
+						}
+					}
+					l.Unlock()
+				}
+			}
+		}
+	}()
+
+	close(l.Reading)
 	done := ctx.Done()
 	select {
 	case <-done:
@@ -191,6 +267,8 @@ func (l *Listener) Listen(ctx context.Context) (err error) {
 		err = ctx.Err()
 	case <-l.closeDone: // all handles closed voluntarily
 	}
+
+	l.closed = true
 	return
 }
 
@@ -206,28 +284,99 @@ func (l *Listener) ListenBackground(ctx context.Context) chan error {
 	return err
 }
 
-// Filter returns automatic filter applied by goreplay
-// to a pcap handle of a specific interface
-func (l *Listener) Filter(ifi pcap.Interface) (filter string) {
-	// https://www.tcpdump.org/manpages/pcap-filter.7.html
-
-	hosts := []string{l.host}
-	if listenAll(l.host) || isDevice(l.host, ifi) {
-		hosts = interfaceAddresses(ifi)
+// Allowed format:
+//
+//	[namespace/]pod/[pod_name]
+//	[namespace/]deployment/[deployment_name]
+//	[namespace/]daemonset/[daemonset_name]
+//	[namespace/]labelSelector/[selector]
+//	[namespace/]fieldSelector/[selector]
+func k8sIPs(addr string) []string {
+	config, err := rest.InClusterConfig()
+	if err != nil {
+		panic(err.Error())
 	}
 
-	filter = portsFilter(l.Transport, "dst", l.ports)
+	// creates the clientset
+	clientset, err := kubernetes.NewForConfig(config)
+	if err != nil {
+		panic(err.Error())
+	}
 
-	if len(hosts) != 0 {
+	sections := strings.Split(addr, "/")
+
+	if len(sections) < 2 {
+		panic("Not supported k8s scheme. Allowed values: [namespace/]pod/[pod_name], [namespace/]deployment/[deployment_name], [namespace/]daemonset/[daemonset_name], [namespace/]label/[label-name]/[label-value]")
+	}
+
+	// If no namespace passed, assume it is ALL
+	switch sections[0] {
+	case "pod", "deployment", "daemonset", "labelSelector", "fieldSelector":
+		sections = append([]string{""}, sections...)
+	}
+
+	namespace, selectorType, selectorValue := sections[0], sections[1], sections[2]
+
+	labelSelector := ""
+	fieldSelector := ""
+
+	switch selectorType {
+	case "pod":
+		fieldSelector = "metadata.name=" + selectorValue
+	case "deployment":
+		labelSelector = "app=" + selectorValue
+	case "daemonset":
+		labelSelector = "pod-template-generation=1,name=" + selectorValue
+	case "labelSelector":
+		labelSelector = selectorValue
+	case "fieldSelector":
+		fieldSelector = selectorValue
+	}
+
+	pods, err := clientset.CoreV1().Pods(namespace).List(context.TODO(), metav1.ListOptions{LabelSelector: labelSelector, FieldSelector: fieldSelector})
+	if err != nil {
+		panic(err.Error())
+	}
+
+	var podIPs []string
+	for _, pod := range pods.Items {
+		for _, podIP := range pod.Status.PodIPs {
+			podIPs = append(podIPs, podIP.IP)
+		}
+	}
+	return podIPs
+}
+
+// Filter returns automatic filter applied by goreplay
+// to a pcap handle of a specific interface
+func (l *Listener) Filter(ifi pcap.Interface, hosts ...string) (filter string) {
+	// https://www.tcpdump.org/manpages/pcap-filter.7.html
+
+	if len(hosts) == 0 {
+		// If k8s have not found any IPs
+		if strings.HasPrefix(l.host, "k8s://") {
+			hosts = []string{}
+		} else {
+			hosts = []string{l.host}
+
+			if listenAll(l.host) || isDevice(l.host, ifi) {
+				hosts = interfaceAddresses(ifi)
+			}
+		}
+	}
+
+	filter = portsFilter(l.config.Transport, "dst", l.ports)
+
+	if len(hosts) != 0 && !l.config.Promiscuous {
 		filter = fmt.Sprintf("((%s) and (%s))", filter, hostsFilter("dst", hosts))
 	} else {
 		filter = fmt.Sprintf("(%s)", filter)
 	}
 
-	if l.trackResponse {
-		responseFilter := portsFilter(l.Transport, "src", l.ports)
+	if l.config.TrackResponse {
+		responseFilter := portsFilter(l.config.Transport, "src", l.ports)
 
-		if len(hosts) != 0 {
+		if len(hosts) != 0 && !l.config.Promiscuous {
 			responseFilter = fmt.Sprintf("((%s) and (%s))", responseFilter, hostsFilter("src", hosts))
 		} else {
 			responseFilter = fmt.Sprintf("(%s)", responseFilter)
@@ -236,7 +385,15 @@ func (l *Listener) Filter(ifi pcap.Interface) (filter string) {
 		filter = fmt.Sprintf("%s or %s", filter, responseFilter)
 	}
 
-	// filter = fmt.Sprintf("((((ip[2:2] - ((ip[0]&0xf)<<2)) - ((tcp[12]&0xf0)>>2)) != 0)) and (%s)", filter)
+	if l.config.VLAN {
+		if len(l.config.VLANVIDs) > 0 {
+			for _, vi := range l.config.VLANVIDs {
+				filter = fmt.Sprintf("vlan %d and ", vi) + filter
+			}
+		} else {
+			filter = "vlan and " + filter
+		}
+	}
 
 	return
 }
@@ -251,29 +408,29 @@ func (l *Listener) PcapHandle(ifi pcap.Interface) (handle *pcap.Handle, err erro
 	}
 	defer inactive.CleanUp()
 
-	if l.TimestampType != "" && l.TimestampType != "go" {
+	if l.config.TimestampType != "" && l.config.TimestampType != "go" {
 		var ts pcap.TimestampSource
-		ts, err = pcap.TimestampSourceFromString(l.TimestampType)
+		ts, err = pcap.TimestampSourceFromString(l.config.TimestampType)
 		fmt.Println("Setting custom Timestamp Source. Supported values: `go`, ", inactive.SupportedTimestamps())
 		err = inactive.SetTimestampSource(ts)
 		if err != nil {
 			return nil, fmt.Errorf("%q: supported timestamps: %q, interface: %q", err, inactive.SupportedTimestamps(), ifi.Name)
 		}
 	}
-	if l.Promiscuous {
-		if err = inactive.SetPromisc(l.Promiscuous); err != nil {
+	if l.config.Promiscuous {
+		if err = inactive.SetPromisc(l.config.Promiscuous); err != nil {
 			return nil, fmt.Errorf("promiscuous mode error: %q, interface: %q", err, ifi.Name)
 		}
 	}
-	if l.Monitor {
-		if err = inactive.SetRFMon(l.Monitor); err != nil && !errors.Is(err, pcap.CannotSetRFMon) {
+	if l.config.Monitor {
+		if err = inactive.SetRFMon(l.config.Monitor); err != nil && !errors.Is(err, pcap.CannotSetRFMon) {
 			return nil, fmt.Errorf("monitor mode error: %q, interface: %q", err, ifi.Name)
 		}
 	}
 
 	var snap int
 
-	if !l.Snaplen {
+	if !l.config.Snaplen {
 		infs, _ := net.Interfaces()
 		for _, i := range infs {
 			if i.Name == ifi.Name {
@@ -290,16 +447,16 @@ func (l *Listener) PcapHandle(ifi pcap.Interface) (handle *pcap.Handle, err erro
 	if err != nil {
 		return nil, fmt.Errorf("snapshot length error: %q, interface: %q", err, ifi.Name)
 	}
-	if l.BufferSize > 0 {
-		err = inactive.SetBufferSize(int(l.BufferSize))
+	if l.config.BufferSize > 0 {
+		err = inactive.SetBufferSize(int(l.config.BufferSize))
 		if err != nil {
 			return nil, fmt.Errorf("handle buffer size error: %q, interface: %q", err, ifi.Name)
 		}
 	}
-	if l.BufferTimeout == 0 {
-		l.BufferTimeout = 2000 * time.Millisecond
+	if l.config.BufferTimeout == 0 {
+		l.config.BufferTimeout = 2000 * time.Millisecond
 	}
-	err = inactive.SetTimeout(l.BufferTimeout)
+	err = inactive.SetTimeout(l.config.BufferTimeout)
 	if err != nil {
 		return nil, fmt.Errorf("handle buffer timeout error: %q, interface: %q", err, ifi.Name)
 	}
@@ -308,7 +465,7 @@ func (l *Listener) PcapHandle(ifi pcap.Interface) (handle *pcap.Handle, err erro
 		return nil, fmt.Errorf("PCAP Activate device error: %q, interface: %q", err, ifi.Name)
 	}
 
-	bpfFilter := l.BPFFilter
+	bpfFilter := l.config.BPFFilter
 	if bpfFilter == "" {
 		bpfFilter = l.Filter(ifi)
 	}
@@ -327,16 +484,16 @@ func (l *Listener) SocketHandle(ifi pcap.Interface) (handle Socket, err error) {
 	if err != nil {
 		return nil, fmt.Errorf("sock raw error: %q, interface: %q", err, ifi.Name)
 	}
-	if err = handle.SetPromiscuous(l.Promiscuous || l.Monitor); err != nil {
+	if err = handle.SetPromiscuous(l.config.Promiscuous || l.config.Monitor); err != nil {
 		return nil, fmt.Errorf("promiscuous mode error: %q, interface: %q", err, ifi.Name)
 	}
-	if l.BPFFilter == "" {
-		l.BPFFilter = l.Filter(ifi)
+	if l.config.BPFFilter == "" {
+		l.config.BPFFilter = l.Filter(ifi)
 	}
-	fmt.Println("BPF Filter: ", l.BPFFilter)
-	if err = handle.SetBPFFilter(l.BPFFilter); err != nil {
+	fmt.Println("BPF Filter: ", l.config.BPFFilter)
+	if err = handle.SetBPFFilter(l.config.BPFFilter); err != nil {
 		handle.Close()
-		return nil, fmt.Errorf("BPF filter error: %q%s, interface: %q", err, l.BPFFilter, ifi.Name)
+		return nil, fmt.Errorf("BPF filter error: %q%s, interface: %q", err, l.config.BPFFilter, ifi.Name)
 	}
 	handle.SetLoopbackIndex(int32(l.loopIndex))
 	return
@@ -360,86 +517,82 @@ func http1EndHint(m *tcp.Message) bool {
 		return false
 	}
 
-	return proto.HasFullPayload(m, m.PacketData()...)
+	req, res := http1StartHint(m.Packets()[0])
+	return proto.HasFullPayload(m, m.PacketData()...) && (req || res)
 }
 
-func (l *Listener) read() {
-	l.Lock()
-	defer l.Unlock()
-	for key, handle := range l.Handles {
-		go func(key string, hndl packetHandle) {
-			runtime.LockOSThread()
+func (l *Listener) readHandle(key string, hndl packetHandle) {
+	runtime.LockOSThread()
 
-			defer l.closeHandles(key)
-			linkSize := 14
-			linkType := int(layers.LinkTypeEthernet)
-			if _, ok := hndl.handler.(*pcap.Handle); ok {
-				linkType = int(hndl.handler.(*pcap.Handle).LinkType())
-				linkSize, ok = pcapLinkTypeLength(linkType)
-				if !ok {
-					if os.Getenv("GORDEBUG") != "0" {
-						log.Printf("can not identify link type of an interface '%s'\n", key)
-					}
-					return // can't find the linktype size
-				}
+	defer l.closeHandles(key)
+	linkSize := 14
+	linkType := int(layers.LinkTypeEthernet)
+	if _, ok := hndl.handler.(*pcap.Handle); ok {
+		linkType = int(hndl.handler.(*pcap.Handle).LinkType())
+		linkSize, ok = pcapLinkTypeLength(linkType, l.config.VLAN)
+		if !ok {
+			if os.Getenv("GORDEBUG") != "0" {
+				log.Printf("can not identify link type of an interface '%s'\n", key)
 			}
+			return // can't find the linktype size
+		}
+	}
 
-			messageParser := tcp.NewMessageParser(l.messages, l.ports, hndl.ips, l.expiry, l.allowIncomplete)
+	messageParser := tcp.NewMessageParser(l.messages, l.ports, hndl.ips, l.config.Expire, l.config.AllowIncomplete)
 
-			if l.protocol == tcp.ProtocolHTTP {
-				messageParser.Start = http1StartHint
-				messageParser.End = http1EndHint
-			}
+	if l.config.Protocol == tcp.ProtocolHTTP {
+		messageParser.Start = http1StartHint
+		messageParser.End = http1EndHint
+	}
 
-			timer := time.NewTicker(1 * time.Second)
+	timer := time.NewTicker(1 * time.Second)
 
-			for {
-				select {
-				case <-l.quit:
-					return
-				case <-timer.C:
-					if h, ok := hndl.handler.(PcapStatProvider); ok {
-						s, _ := h.Stats()
-						stats.Add("packets_received", int64(s.PacketsReceived))
-						stats.Add("packets_dropped", int64(s.PacketsDropped))
-						stats.Add("packets_if_dropped", int64(s.PacketsIfDropped))
-					}
-				default:
-					data, ci, err := hndl.handler.ReadPacketData()
-					if err == nil {
-						if l.TimestampType == "go" {
-							ci.Timestamp = time.Now()
-						}
+	for {
+		select {
+		case <-l.quit:
+			return
+		case <-timer.C:
+			if h, ok := hndl.handler.(PcapStatProvider); ok {
+				s, err := h.Stats()
+				if err == nil {
+					stats.Add("packets_received", int64(s.PacketsReceived))
+					stats.Add("packets_dropped", int64(s.PacketsDropped))
+					stats.Add("packets_if_dropped", int64(s.PacketsIfDropped))
+				}
+			}
+		default:
+			data, ci, err := hndl.handler.ReadPacketData()
+			if err == nil {
+				if l.config.TimestampType == "go" {
+					ci.Timestamp = time.Now()
+				}
 
-						messageParser.PacketHandler(&tcp.PcapPacket{
-							Data:     data,
-							LType:    linkType,
-							LTypeLen: linkSize,
-							Ci:       &ci,
-						})
-						continue
-					}
-					if enext, ok := err.(pcap.NextError); ok && enext == pcap.NextErrorTimeoutExpired {
-						continue
-					}
-					if eno, ok := err.(syscall.Errno); ok && eno.Temporary() {
-						continue
-					}
-					if enet, ok := err.(*net.OpError); ok && (enet.Temporary() || enet.Timeout()) {
-						continue
-					}
-					if err == io.EOF || err == io.ErrClosedPipe {
-						log.Printf("stopped reading from %s interface with error %s\n", key, err)
-						return
-					}
+				messageParser.PacketHandler(&tcp.PcapPacket{
+					Data:     data,
+					LType:    linkType,
+					LTypeLen: linkSize,
+					Ci:       &ci,
+				})
+				continue
+			}
+			if enext, ok := err.(pcap.NextError); ok && enext == pcap.NextErrorTimeoutExpired {
+				continue
+			}
+			if eno, ok := err.(syscall.Errno); ok && eno.Temporary() {
+				continue
+			}
+			if enet, ok := err.(*net.OpError); ok && (enet.Temporary() || enet.Timeout()) {
+				continue
+			}
+			if err == io.EOF || err == io.ErrClosedPipe {
+				log.Printf("stopped reading from %s interface with error %s\n", key, err)
+				return
+			}
 
-					log.Printf("stopped reading from %s interface with error %s\n", key, err)
-					return
-				}
-			}
-		}(key, handle)
+			log.Printf("stopped reading from %s interface with error %s\n", key, err)
+			return
+		}
 	}
-	close(l.Reading)
 }
 
 func (l *Listener) Messages() chan *tcp.Message {
@@ -465,6 +618,10 @@ func (l *Listener) activatePcap() error {
 	var e error
 	var msg string
 	for _, ifi := range l.Interfaces {
+		if _, found := l.Handles[ifi.Name]; found {
+			continue
+		}
+
 		var handle *pcap.Handle
 		handle, e = l.PcapHandle(ifi)
 		if e != nil {
@@ -482,6 +639,18 @@ func (l *Listener) activatePcap() error {
 	return nil
 }
 
+func (l *Listener) activateVxLanSocket() error {
+	handler, err := newVXLANHandler(l.config.VXLANPort, l.config.VXLANVNIs)
+	if err != nil {
+		return err
+	}
+	l.Handles["vxlan"] = packetHandle{
+		handler: handler,
+	}
+
+	return nil
+}
+
 func (l *Listener) activateRawSocket() error {
 	if runtime.GOOS != "linux" {
 		return fmt.Errorf("sock_raw is not stabilized on OS other than linux")
@@ -489,6 +658,10 @@ func (l *Listener) activateRawSocket() error {
 	var msg string
 	var e error
 	for _, ifi := range l.Interfaces {
+		if _, found := l.Handles[ifi.Name]; found {
+			continue
+		}
+
 		var handle Socket
 		handle, e = l.SocketHandle(ifi)
 		if e != nil {
@@ -515,13 +688,16 @@ func (l *Listener) activatePcapFile() (err error) {
 
 	tmp := l.host
 	l.host = ""
-	l.BPFFilter = l.Filter(pcap.Interface{})
+	l.config.BPFFilter = l.Filter(pcap.Interface{})
 	l.host = tmp
 
-	if e = handle.SetBPFFilter(l.BPFFilter); e != nil {
+	if e = handle.SetBPFFilter(l.config.BPFFilter); e != nil {
 		handle.Close()
-		return fmt.Errorf("BPF filter error: %q, filter: %s", e, l.BPFFilter)
+		return fmt.Errorf("BPF filter error: %q, filter: %s", e, l.config.BPFFilter)
 	}
+
+	fmt.Println("BPF Filter:", l.config.BPFFilter)
+
 	l.Handles["pcap_file"] = packetHandle{
 		handler: handle,
 	}
@@ -536,6 +712,10 @@ func (l *Listener) activateAFPacket() error {
 
 	var msg string
 	for _, ifi := range l.Interfaces {
+		if _, found := l.Handles[ifi.Name]; found {
+			continue
+		}
+
 		handle, err := newAfpacketHandle(ifi.Name, szFrame, szBlock, numBlocks, false, pcap.BlockForever)
 
 		if err != nil {
@@ -543,11 +723,11 @@ func (l *Listener) activateAFPacket() error {
 			continue
 		}
 
-		if l.BPFFilter == "" {
-			l.BPFFilter = l.Filter(ifi)
+		if l.config.BPFFilter == "" {
+			l.config.BPFFilter = l.Filter(ifi)
 		}
-		fmt.Println("Interface:", ifi.Name, ". BPF Filter:", l.BPFFilter)
-		handle.SetBPFFilter(l.BPFFilter, 64<<10)
+		fmt.Println("Interface:", ifi.Name, ". BPF Filter:", l.config.BPFFilter)
+		handle.SetBPFFilter(l.config.BPFFilter, 64<<10)
 
 		l.Handles[ifi.Name] = packetHandle{
 			handler: handle,
@@ -566,31 +746,29 @@ func (l *Listener) setInterfaces() (err error) {
 	var pifis []pcap.Interface
 	pifis, err = pcap.FindAllDevs()
 	ifis, _ := net.Interfaces()
+	l.Interfaces = []pcap.Interface{}
+
 	if err != nil {
 		return
 	}
 
 	for _, pi := range pifis {
-		var ni net.Interface
-		for _, i := range ifis {
-			addrs, _ := i.Addrs()
-			for _, a := range addrs {
-				for _, pa := range pi.Addresses {
-					if strings.HasPrefix(a.String(), pa.IP.String()) {
-						ni = i
-						break
-					}
-				}
-			}
-
-			if len(addrs) == 0 && i.Name == pi.Name {
-				ni = i
+		ignore := false
+		for _, ig := range l.config.IgnoreInterface {
+			if pi.Name == ig {
+				ignore = true
 				break
 			}
 		}
 
-		if ni.Flags&net.FlagLoopback != 0 {
-			l.loopIndex = ni.Index
+		if ignore {
+			continue
+		}
+
+		if strings.HasPrefix(l.host, "k8s://") {
+			if !strings.HasPrefix(pi.Name, "veth") {
+				continue
+			}
 		}
 
 		if isDevice(l.host, pi) {
@@ -598,6 +776,28 @@ func (l *Listener) setInterfaces() (err error) {
 			return
 		}
 
+		var ni net.Interface
+		for _, i := range ifis {
+			if i.Name == pi.Name {
+				ni = i
+				break
+			}
+
+			addrs, _ := i.Addrs()
+			for _, a := range addrs {
+				for _, pa := range pi.Addresses {
+					if a.String() == pa.IP.String() {
+						ni = i
+						break
+					}
+				}
+			}
+		}
+
+		if ni.Flags&net.FlagLoopback != 0 {
+			l.loopIndex = ni.Index
+		}
+
 		if runtime.GOOS != "windows" {
 			if len(pi.Addresses) == 0 {
 				continue
@@ -623,6 +823,12 @@ func isDevice(addr string, ifi pcap.Interface) bool {
 		return true
 	}
 
+	if strings.HasSuffix(addr, "*") {
+		if strings.HasPrefix(ifi.Name, addr[:len(addr)-1]) {
+			return true
+		}
+	}
+
 	for _, _addr := range ifi.Addresses {
 		if _addr.IP.String() == addr {
 			return true
@@ -677,10 +883,14 @@ func hostsFilter(direction string, hosts []string) string {
 	return strings.Join(hostsFilters, " or ")
 }
 
-func pcapLinkTypeLength(lType int) (int, bool) {
+func pcapLinkTypeLength(lType int, vlan bool) (int, bool) {
 	switch layers.LinkType(lType) {
 	case layers.LinkTypeEthernet:
-		return 14, true
+		if vlan {
+			return 18, true
+		} else {
+			return 14, true
+		}
 	case layers.LinkTypeNull, layers.LinkTypeLoop:
 		return 4, true
 	case layers.LinkTypeRaw, 12, 14:

internal/capture/capture_test.go

@@ -0,0 +1,22 @@
+package capture
+
+import (
+	"testing"
+)
+
+func TestSetInterfaces(t *testing.T) {
+	listener := &Listener{
+		loopIndex: 99999,
+	}
+	listener.setInterfaces()
+
+	for _, nic := range listener.Interfaces {
+		if (len(nic.Addresses)) == 0 {
+			t.Errorf("nic %s was captured with 0 addresses", nic.Name)
+		}
+	}
+
+	if listener.loopIndex == 99999 {
+		t.Errorf("loopback nic index was not found")
+	}
+}

internal/capture/doc.go

@@ -9,27 +9,34 @@ example:
 
 // for the transport should be "tcp"
 listener, err := capture.NewListener(host, port, transport, engine, trackResponse)
-if err != nil {
-	// handle error
-}
+
+	if err != nil {
+		// handle error
+	}
+
 listener.SetPcapOptions(opts)
 err = listner.Activate()
-if err != nil {
-	// handle it
-}
 
-if err := listener.Listen(context.Background(), handler); err != nil {
-	 // handle error
-}
+	if err != nil {
+		// handle it
+	}
+
+	if err := listener.Listen(context.Background(), handler); err != nil {
+		 // handle error
+	}
+
 // or
 errCh := listener.ListenBackground(context.Background(), handler) // runs in the background
 select {
 case err := <- errCh:
+
 	// handle error
+
 case <-quit:
+
 	//
+
 case <- l.Reading: // if we have started reading
 }
-
 */
 package capture // import github.com/buger/goreplay/capture

internal/capture/dump.go

@@ -35,18 +35,18 @@ const versionMinor = 4
 // an append), you must call WriteFileHeader before WritePacket.  Packet
 // timestamps are written with nanosecond precision.
 //
-//  // Write a new file:
-//  f, _ := os.Create("/tmp/file.pcap")
-//  w := pcapgo.NewWriterNanos(f)
-//  w.WriteFileHeader(65536, layers.LinkTypeEthernet)  // new file, must do this.
-//  w.WritePacket(gopacket.CaptureInfo{...}, data1)
-//  f.Close()
-//  // Append to existing file (must have same snaplen and linktype)
-//  f2, _ := os.OpenFile("/tmp/fileNano.pcap", os.O_APPEND, 0700)
-//  w2 := pcapgo.NewWriter(f2)
-//  // no need for file header, it's already written.
-//  w2.WritePacket(gopacket.CaptureInfo{...}, data2)
-//  f2.Close()
+//	// Write a new file:
+//	f, _ := os.Create("/tmp/file.pcap")
+//	w := pcapgo.NewWriterNanos(f)
+//	w.WriteFileHeader(65536, layers.LinkTypeEthernet)  // new file, must do this.
+//	w.WritePacket(gopacket.CaptureInfo{...}, data1)
+//	f.Close()
+//	// Append to existing file (must have same snaplen and linktype)
+//	f2, _ := os.OpenFile("/tmp/fileNano.pcap", os.O_APPEND, 0700)
+//	w2 := pcapgo.NewWriter(f2)
+//	// no need for file header, it's already written.
+//	w2.WritePacket(gopacket.CaptureInfo{...}, data2)
+//	f2.Close()
 func NewWriterNanos(w io.Writer) *Writer {
 	return &Writer{w: w, tsScaler: nanosPerNano}
 }
@@ -56,18 +56,18 @@ func NewWriterNanos(w io.Writer) *Writer {
 // an append), you must call WriteFileHeader before WritePacket.
 // Packet timestamps are written with microsecond precision.
 //
-//  // Write a new file:
-//  f, _ := os.Create("/tmp/file.pcap")
-//  w := pcapgo.NewWriter(f)
-//  w.WriteFileHeader(65536, layers.LinkTypeEthernet)  // new file, must do this.
-//  w.WritePacket(gopacket.CaptureInfo{...}, data1)
-//  f.Close()
-//  // Append to existing file (must have same snaplen and linktype)
-//  f2, _ := os.OpenFile("/tmp/file.pcap", os.O_APPEND, 0700)
-//  w2 := pcapgo.NewWriter(f2)
-//  // no need for file header, it's already written.
-//  w2.WritePacket(gopacket.CaptureInfo{...}, data2)
-//  f2.Close()
+//	// Write a new file:
+//	f, _ := os.Create("/tmp/file.pcap")
+//	w := pcapgo.NewWriter(f)
+//	w.WriteFileHeader(65536, layers.LinkTypeEthernet)  // new file, must do this.
+//	w.WritePacket(gopacket.CaptureInfo{...}, data1)
+//	f.Close()
+//	// Append to existing file (must have same snaplen and linktype)
+//	f2, _ := os.OpenFile("/tmp/file.pcap", os.O_APPEND, 0700)
+//	w2 := pcapgo.NewWriter(f2)
+//	// no need for file header, it's already written.
+//	w2.WritePacket(gopacket.CaptureInfo{...}, data2)
+//	f2.Close()
 func NewWriter(w io.Writer) *Writer {
 	return &Writer{w: w, tsScaler: nanosPerMicro}
 }

internal/capture/sock_linux.go

@@ -1,4 +1,4 @@
-// +build linux
+//go:build linux && !arm64
 
 package capture
 

internal/capture/sock_others.go

@@ -1,4 +1,4 @@
-// +build !linux
+//go:build !linux || arm64 || darwin
 
 package capture
 

internal/capture/vxlan.go

@@ -0,0 +1,100 @@
+package capture
+
+import (
+	"errors"
+	"fmt"
+	"github.com/google/gopacket"
+	"github.com/google/gopacket/layers"
+	"net"
+	"time"
+)
+
+const VxLanPacketSize = 1526 //vxlan 8 B + ethernet II 1518 B
+
+type vxlanHandle struct {
+	connection    *net.UDPConn
+	packetChannel chan gopacket.Packet
+	vnis          []int
+}
+
+func newVXLANHandler(port int, vnis []int) (*vxlanHandle, error) {
+	if port == 0 {
+		port = 4789
+	}
+
+	addr := net.UDPAddr{
+		Port: port,
+		IP:   net.ParseIP("0.0.0.0"),
+	}
+
+	vxlanHandle := &vxlanHandle{}
+	con, err := net.ListenUDP("udp", &addr)
+	if err != nil {
+		return nil, fmt.Errorf(err.Error())
+	}
+	vxlanHandle.connection = con
+	vxlanHandle.packetChannel = make(chan gopacket.Packet, 1000)
+	vxlanHandle.vnis = vnis
+	go vxlanHandle.reader()
+
+	return vxlanHandle, nil
+}
+
+func (v *vxlanHandle) reader() {
+	for {
+		inputBytes := make([]byte, VxLanPacketSize)
+		length, _, err := v.connection.ReadFromUDP(inputBytes)
+		if err != nil {
+			if errors.Is(err, net.ErrClosed) {
+				return
+			}
+			continue
+		}
+		packet := gopacket.NewPacket(inputBytes[:length], layers.LayerTypeVXLAN, gopacket.NoCopy)
+		ci := packet.Metadata()
+		ci.Timestamp = time.Now()
+		ci.CaptureLength = length
+		ci.Length = length
+
+		if len(v.vnis) > 0 && !v.vniIsAllowed(packet) {
+			continue
+		}
+
+		v.packetChannel <- packet
+	}
+}
+
+func (v *vxlanHandle) vniIsAllowed(packet gopacket.Packet) bool {
+	defaultState := false
+	if layer := packet.Layer(layers.LayerTypeVXLAN); layer != nil {
+		vxlan, _ := layer.(*layers.VXLAN)
+		for _, vn := range v.vnis {
+			if vn > 0 && int(vxlan.VNI) == vn {
+				return true
+			}
+
+			if vn < 0 {
+				if int(vxlan.VNI) == -vn {
+					return false
+				}
+				defaultState = true
+			}
+		}
+	}
+	return defaultState
+}
+
+func (v *vxlanHandle) ReadPacketData() ([]byte, gopacket.CaptureInfo, error) {
+	packet := <-v.packetChannel
+	layer := packet.Layer(layers.LayerTypeVXLAN)
+	bytes := layer.LayerPayload()
+
+	return bytes, packet.Metadata().CaptureInfo, nil
+}
+
+func (v *vxlanHandle) Close() error {
+	if v.connection != nil {
+		return v.connection.Close()
+	}
+	return nil
+}

internal/tcp/doc.go

@@ -4,7 +4,6 @@ parsing, reassembling tcp packets, handling communication with engine listeners(
 and reporting errors and statistics of packets.
 the packets are parsed by following TCP way(https://en.wikipedia.org/wiki/Transmission_Control_Protocol#TCP_segment_structure).
 
-
 example:
 
 import "github.com/buger/goreplay/tcp"
@@ -22,6 +21,5 @@ you can use pool.End or/and pool.Start to set custom session behaviors
 
 debugLevel in debugger function indicates the priority of the logs, the bigger the number the lower
 the priority. errors are signified by debug level 4 for errors, 5 for discarded packets, and 6 for received packets.
-
 */
 package tcp // import github.com/buger/goreplay/tcp

internal/tcp/tcp_message.go

@@ -4,10 +4,10 @@ import (
 	"encoding/binary"
 	"encoding/hex"
 	"fmt"
+	"github.com/buger/goreplay/proto"
 	"net"
 	"reflect"
 	"sort"
-	"sync"
 	"time"
 	"unsafe"
 )
@@ -62,10 +62,10 @@ type Stats struct {
 
 // Message is the representation of a tcp message
 type Message struct {
-	packets  []*Packet
-	parser   *MessageParser
-	feedback interface{}
-	Idx      uint16
+	packets          []*Packet
+	parser           *MessageParser
+	feedback         interface{}
+	continueAdjusted bool
 	Stats
 }
 
@@ -168,6 +168,13 @@ func (m *Message) Data() []byte {
 		tmp, _ = copySlice(tmp, len(packetData[0]), packetData[1:]...)
 	}
 
+	// Remove Expect header, since its replay not fully supported
+	if state, ok := m.feedback.(*proto.HTTPState); ok {
+		if state.Continue100 {
+			tmp = proto.DeleteHeader(tmp, []byte("Expect"))
+		}
+	}
+
 	return tmp
 }
 
@@ -200,8 +207,7 @@ type HintStart func(*Packet) (IsRequest, IsOutgoing bool)
 // MessageParser holds data of all tcp messages in progress(still receiving/sending packets).
 // message is identified by its source port and dst port, and last 4bytes of src IP.
 type MessageParser struct {
-	m  []map[uint64]*Message
-	mL []sync.RWMutex
+	m map[uint64]*Message
 
 	messageExpire  time.Duration // the maximum time to wait for the final packet, minimum is 100ms
 	allowIncompete bool
@@ -229,24 +235,18 @@ func NewMessageParser(messages chan *Message, ports []uint16, ips []net.IP, mess
 	parser.packets = make(chan *PcapPacket, 10000)
 
 	if messages == nil {
-		messages = make(chan *Message, 100)
+		messages = make(chan *Message, 1000)
 	}
 	parser.messages = messages
+
+	parser.m = make(map[uint64]*Message)
 	parser.ticker = time.NewTicker(time.Millisecond * 100)
 	parser.close = make(chan struct{}, 1)
 
 	parser.ports = ports
 	parser.ips = ips
 
-	for i := 0; i < 10; i++ {
-		parser.m = append(parser.m, make(map[uint64]*Message))
-		parser.mL = append(parser.mL, sync.RWMutex{})
-	}
-
-	for i := 0; i < 10; i++ {
-		go parser.wait(i)
-	}
-
+	go parser.wait()
 	return parser
 }
 
@@ -258,7 +258,7 @@ func (parser *MessageParser) PacketHandler(packet *PcapPacket) {
 	parser.packets <- packet
 }
 
-func (parser *MessageParser) wait(index int) {
+func (parser *MessageParser) wait() {
 	var (
 		now time.Time
 	)
@@ -267,7 +267,7 @@ func (parser *MessageParser) wait(index int) {
 		case pckt := <-parser.packets:
 			parser.processPacket(parser.parsePacket(pckt))
 		case now = <-parser.ticker.C:
-			parser.timer(now, index)
+			parser.timer(now)
 		case <-parser.close:
 			parser.ticker.Stop()
 			// parser.Close should wait for this function to return
@@ -281,18 +281,18 @@ func (parser *MessageParser) wait(index int) {
 func (parser *MessageParser) parsePacket(pcapPkt *PcapPacket) *Packet {
 	pckt, err := ParsePacket(pcapPkt.Data, pcapPkt.LType, pcapPkt.LTypeLen, pcapPkt.Ci, false)
 	if err != nil {
-		stats.Add("packet_error", 1)
+		if _, empty := err.(EmptyPacket); !empty {
+			stats.Add("packet_error", 1)
+		}
 		return nil
 	}
 
 	for _, p := range parser.ports {
-		if pckt.DstPort == p {
-			for _, ip := range parser.ips {
-				if pckt.DstIP.Equal(ip) {
-					pckt.Direction = DirIncoming
-					break
-				}
-			}
+		if pckt.DstPort == p && containsOrEmpty(pckt.DstIP, parser.ips) {
+			pckt.Direction = DirIncoming
+			break
+		} else if pckt.SrcPort == p && containsOrEmpty(pckt.SrcIP, parser.ips) {
+			pckt.Direction = DirOutcoming
 			break
 		}
 	}
@@ -300,6 +300,18 @@ func (parser *MessageParser) parsePacket(pcapPkt *PcapPacket) *Packet {
 	return pckt
 }
 
+func containsOrEmpty(element net.IP, ipList []net.IP) bool {
+	if len(ipList) == 0 {
+		return true
+	}
+	for _, ip := range ipList {
+		if ip.Equal(element) {
+			return true
+		}
+	}
+	return false
+}
+
 func (parser *MessageParser) processPacket(pckt *Packet) {
 	if pckt == nil {
 		return
@@ -307,28 +319,19 @@ func (parser *MessageParser) processPacket(pckt *Packet) {
 
 	// Trying to build unique hash, but there is small chance of collision
 	// No matter if it is request or response, all packets in the same message have same
-	mID := pckt.MessageID()
-	mIDX := pckt.SrcPort % 10
-
-	parser.mL[mIDX].Lock()
-	m, ok := parser.m[mIDX][mID]
-	if !ok {
-		parser.mL[mIDX].Unlock()
-
-		mIDX = pckt.DstPort % 10
-		parser.mL[mIDX].Lock()
-		m, ok = parser.m[mIDX][mID]
-
-		if !ok {
-			parser.mL[mIDX].Unlock()
-		}
-	}
-
+	m, ok := parser.m[pckt.MessageID()]
 	switch {
 	case ok:
+		if m.Direction == DirUnknown {
+			if in, out := parser.Start(pckt); in || out {
+				if in {
+					m.Direction = DirIncoming
+				} else {
+					m.Direction = DirOutcoming
+				}
+			}
+		}
 		parser.addPacket(m, pckt)
-
-		parser.mL[mIDX].Unlock()
 		return
 	case pckt.Direction == DirUnknown && parser.Start != nil:
 		if in, out := parser.Start(pckt); in || out {
@@ -340,25 +343,16 @@ func (parser *MessageParser) processPacket(pckt *Packet) {
 		}
 	}
 
-	if pckt.Direction == DirIncoming {
-		mIDX = pckt.SrcPort % 10
-	} else {
-		mIDX = pckt.DstPort % 10
-	}
-
-	parser.mL[mIDX].Lock()
-
 	m = new(Message)
 	m.Direction = pckt.Direction
+	m.SrcAddr = pckt.SrcIP.String()
+	m.DstAddr = pckt.DstIP.String()
 
-	parser.m[mIDX][mID] = m
+	parser.m[pckt.MessageID()] = m
 
-	m.Idx = mIDX
 	m.Start = pckt.Timestamp
 	m.parser = parser
 	parser.addPacket(m, pckt)
-
-	parser.mL[mIDX].Unlock()
 }
 
 func (parser *MessageParser) addPacket(m *Message, pckt *Packet) bool {
@@ -371,12 +365,38 @@ func (parser *MessageParser) addPacket(m *Message, pckt *Packet) bool {
 	if parser.End != nil {
 		if parser.End(m) {
 			parser.Emit(m)
+			return true
 		}
+
+		parser.Fix100Continue(m)
 	}
 
 	return true
 }
 
+func (parser *MessageParser) Fix100Continue(m *Message) {
+	// Only adjust a message once
+	if state, ok := m.feedback.(*proto.HTTPState); ok && state.Continue100 && !m.continueAdjusted {
+		// Shift Ack by given offset
+		// Size of "HTTP/1.1 100 Continue\r\n\r\n" message
+		for _, p := range m.packets {
+			p.messageID = 0
+			p.Ack += 25
+		}
+
+		// If next section was aready approved and received, merge messages
+		if next, found := parser.m[m.packets[0].MessageID()]; found {
+			for _, p := range next.packets {
+				parser.addPacket(m, p)
+			}
+		}
+
+		// Re-add (or override) again with new message and ID
+		parser.m[m.packets[0].MessageID()] = m
+		m.continueAdjusted = true
+	}
+}
+
 func (parser *MessageParser) Read() *Message {
 	m := <-parser.messages
 	return m
@@ -385,7 +405,7 @@ func (parser *MessageParser) Read() *Message {
 func (parser *MessageParser) Emit(m *Message) {
 	stats.Add("message_count", 1)
 
-	delete(parser.m[m.Idx], m.packets[0].MessageID())
+	delete(parser.m, m.packets[0].MessageID())
 
 	parser.messages <- m
 }
@@ -396,14 +416,13 @@ func GetUnexportedField(field reflect.Value) interface{} {
 
 var failMsg int
 
-func (parser *MessageParser) timer(now time.Time, index int) {
+func (parser *MessageParser) timer(now time.Time) {
 	packetLen = 0
-	parser.mL[index].Lock()
 
 	packetQueueLen.Set(int64(len(parser.packets)))
-	messageQueueLen.Set(int64(len(parser.m[index])))
+	messageQueueLen.Set(int64(len(parser.m)))
 
-	for _, m := range parser.m[index] {
+	for _, m := range parser.m {
 		if now.Sub(m.End) > parser.messageExpire {
 			m.TimedOut = true
 			stats.Add("message_timeout_count", 1)
@@ -412,11 +431,9 @@ func (parser *MessageParser) timer(now time.Time, index int) {
 				parser.Emit(m)
 			}
 
-			delete(parser.m[index], m.packets[0].MessageID())
+			delete(parser.m, m.packets[0].MessageID())
 		}
 	}
-
-	parser.mL[index].Unlock()
 }
 
 func (parser *MessageParser) Close() error {

internal/tcp/tcp_packet.go

@@ -17,8 +17,8 @@ func copySlice(to []byte, skip int, from ...[]byte) ([]byte, int) {
 	}
 	totalLen += skip
 
-	if cap(to) < totalLen {
-		diff := totalLen - cap(to)
+	if len(to) < totalLen {
+		diff := totalLen - len(to)
 		to = append(to, make([]byte, diff)...)
 	}
 
@@ -169,7 +169,16 @@ func (pckt *Packet) parse(data []byte, lType, lTypeLen int, cp *gopacket.Capture
 		return ErrHdrLength("TCP opts")
 	}
 
-	if !allowEmpty && len(ndata[dOf:]) == 0 {
+	// There are case when packet have padding but dOf shows its not
+	empty := true
+	for i := 0; i < len(ndata[dOf:]); i++ {
+		if ndata[dOf:][i] != 0 {
+			empty = false
+			break
+		}
+	}
+
+	if !allowEmpty && empty {
 		return EmptyPacket("")
 	}
 

internal/tcp/tcp_test.go

@@ -3,6 +3,7 @@ package tcp
 import (
 	"bytes"
 	"encoding/binary"
+	"github.com/buger/goreplay/proto"
 
 	// "runtime"
 	"testing"
@@ -10,7 +11,6 @@ import (
 
 	"github.com/stretchr/testify/assert"
 
-	"github.com/buger/goreplay/proto"
 	"github.com/google/gopacket"
 	"github.com/google/gopacket/layers"
 )
@@ -213,15 +213,18 @@ func TestMessageParserWithoutHint(t *testing.T) {
 }
 
 func TestMessageTimeoutReached(t *testing.T) {
-	var data [63 << 10]byte
+	const size = 63 << 11
+	var data [size >> 1]byte
 	packets := GetPackets(true, 1, 2, data[:])
-	p := NewMessageParser(nil, nil, nil, 10*time.Millisecond, true)
+	p := NewMessageParser(nil, nil, nil, 100*time.Millisecond, true)
 	p.processPacket(packets[0])
-	time.Sleep(time.Millisecond * 100)
+
+	time.Sleep(time.Millisecond * 20)
+
 	p.processPacket(packets[1])
 	m := p.Read()
-	if m.Length != 63<<10 {
-		t.Errorf("expected %d to equal %d", m.Length, 63<<10)
+	if m.Length != size {
+		t.Errorf("expected %d to equal %d", m.Length, size)
 	}
 	if !m.TimedOut {
 		t.Error("expected message to be timeout")

k8s/README.md

@@ -0,0 +1,172 @@
+# Native k8s integration
+
+After following steps below, you will be able to capture traffic inside k8s like this:
+
+```
+gor --input-raw k8s://namespace/deployment/app:80 --output-http http://replay.com
+```
+
+GoReplay will running as a daemonset (e.g. on each phisical k8s node. 
+It will also require giving required permission to have read access to K8s APIs, so it can dynamically filter traffic for a specific pods.
+
+Supported format for filtering required pods:
+
+```
+k8s://[namespace/]pod/[pod_name] - k8s://default/pod/nginx-7848d4b86f-5nxz8
+k8s://[namespace/]deployment/[deployment_name] - k8s://default/deployment/nginx
+k8s://[namespace/]daemonset/[daemonset_name] - k8s://default/daemonset/nginx
+k8s://[namespace/]labelSelector/[selector] - k8s://default/labelSelector/app=nginx
+k8s://[namespace/]fieldSelector/[selector] - k8s://default/fieldSelector/metadata.name=nginx-7848d4b86f-5nxz8
+```
+`namespace` is optional, omit to use all namespaces: `k8s://labelSelector/app=replay`
+
+## 1. Create a namespace
+`kubectl create namespace goreplay`
+
+## 2. Create the Kubernetes service account in the namespace:
+
+`kubectl create serviceaccount goreplay --namespace goreplay`
+
+## 3. Create Cluster Role which gives read-only access to the pods:
+`kubectl -n goreplay -f clusterrole.yaml apply`
+
+```yaml
+kind: ClusterRole
+apiVersion: rbac.authorization.k8s.io/v1
+metadata:
+  name: pod-reader
+rules:
+- apiGroups: [""]
+  resources: ["pods"]
+  verbs: ["get", "watch", "list"]
+- apiGroups: [""]
+  resources: ["deployments"]
+  verbs: ["get", "watch", "list"]
+- apiGroups: [""]
+  resources: ["daemonset"]
+  verbs: ["get", "watch", "list"]
+```
+
+## 4. Attach role to goreplay service account
+`kubectl -n goreplay -f rolebinding.yaml apply`
+
+```yaml
+kind: ClusterRoleBinding
+apiVersion: rbac.authorization.k8s.io/v1
+metadata:
+  name: goreplay-reader-binding
+subjects:
+- kind: ServiceAccount
+  name: goreplay
+  namespace: goreplay
+roleRef:
+  kind: ClusterRole
+  name: pod-reader
+  apiGroup: ""
+```
+
+## 5. Start goreplay daemonset
+
+`kubectl -n goreplay -f goreplay.yaml apply`
+
+In arguments, specify which service you want to capture. 
+Following format supported:
+
+
+```yaml
+apiVersion: apps/v1
+kind: DaemonSet
+metadata:
+  name: goreplay-daemon
+spec:
+  selector:
+    matchLabels:
+      app: goreplay
+  template:
+    metadata:
+      labels:
+        app: goreplay
+    spec:
+      hostNetwork: true
+      serviceAccountName: goreplay
+      containers:
+      - name: goreplay
+        image: buger/goreplay:2.0.0-rc4
+        args:
+          - "--input-raw"
+          - "k8s://deployments/nginx:80"
+          - "--output-stdout"
+```
+
+## 6. Create a simple http service (Optionally)
+
+`kubectl -n default -f nginx.yaml apply`
+
+```yaml
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: nginx
+  labels:
+    app: nginx
+spec:
+  replicas: 1
+  selector:
+    matchLabels:
+      app: nginx
+  template:
+    metadata:
+      labels:
+        app: nginx
+    spec:
+      containers:
+      - name: nginx
+        image: nginx
+        ports:
+        - containerPort: 80
+   
+---
+apiVersion: v1
+kind: Service
+metadata:
+  name: ngnix-service
+spec:
+  selector:
+    app: nginx
+  type: NodePort
+  ports:
+  - protocol: TCP
+    port: 80
+    targetPort: 80
+
+```
+
+
+## 7. Verify installation, and debugging tips
+
+Find url for your service using `kubectl get svc` or `minikube service --url ngnix-service -n http`, and make a call to it.
+
+Get GoReplay logs, and check if it capture traffic of your service.
+`kubectl logs -n goreplay -l app=goreplay --all-containers`
+
+Describe daemonset:
+`kubectl describe daemonset goreplay-daemon -n goreplay`
+
+Get GoReplay pod list:
+`kubectl get pods -n goreplay -l app=goreplay`
+
+Get logs for specific pod (take data from previous step):
+`kubectl logs goreplay-daemon-<replace> -n goreplay`
+
+Get related k8s events:
+`kubectl get events -n goreplay --field-selector involvedObject.name=goreplay-daemon-<replace>`
+
+## 8. Debuggin telemetry
+
+We provde a special script which will get all require logs, and help you find installation errors. 
+
+`curl -s https://raw.githubusercontent.com/buger/goreplay/refs/heads/master/k8s/collect_goreplay_telemetry.sh | bash`
+
+If you are using microk8s or similar, you can also specific prefix for your kubectl command like this:
+
+`curl -s https://raw.githubusercontent.com/buger/goreplay/refs/heads/master/k8s/collect_goreplay_telemetry.sh | bash -s -- "microk8s kubectl"`

k8s/clusterrole.yaml

@@ -0,0 +1,14 @@
+kind: ClusterRole
+apiVersion: rbac.authorization.k8s.io/v1
+metadata:
+  name: pod-reader
+rules:
+- apiGroups: [""]
+  resources: ["pods"]
+  verbs: ["get", "watch", "list"]
+- apiGroups: ["apps"]
+  resources: ["deployments"]
+  verbs: ["get", "watch", "list"]
+- apiGroups: ["apps"]
+  resources: ["daemonsets"]
+  verbs: ["get", "watch", "list"]

k8s/collect_goreplay_telemetry.sh

@@ -0,0 +1,123 @@
+#!/usr/bin/env bash
+#
+# collect_goreplay_telemetry.sh
+#
+# Gathers telemetry from a GoReplay DaemonSet in the 'goreplay' namespace.
+# Works on macOS and Linux, assuming 'kubectl' (or compatible) is installed.
+#
+# Usage examples:
+#   ./collect_goreplay_telemetry.sh
+#   ./collect_goreplay_telemetry.sh "microk8s kubectl"
+
+set -euo pipefail
+
+########################################
+# Determine kubectl command
+########################################
+if [[ $# -gt 0 ]]; then
+  # If an argument was provided, use that as the kubectl command
+  KUBECTL="$*"
+else
+  # Default to 'kubectl'
+  KUBECTL="kubectl"
+fi
+
+########################################
+# Check that the base command exists
+########################################
+# For "microk8s kubectl", we only check "microk8s" in PATH. For "oc" we check "oc".
+BASE_CMD="${KUBECTL%% *}"  # everything before the first space
+if ! command -v "${BASE_CMD}" >/dev/null 2>&1; then
+  echo "ERROR: '${BASE_CMD}' not found in PATH. Please install or configure it first."
+  exit 1
+fi
+
+echo "Using kubectl command: $KUBECTL"
+echo
+
+########################################
+# Helper function to print and run commands
+########################################
+run_cmd() {
+  echo "Command: $*"
+  eval "$*"
+}
+
+########################################
+# 1. Print logs from ALL GoReplay pods
+########################################
+echo "=================================================="
+echo "1. Gathering logs from all goreplay pods (all containers)..."
+echo "=================================================="
+run_cmd "$KUBECTL logs -n goreplay -l app=goreplay --all-containers" || {
+  echo "WARNING: Failed to get logs from pods with label app=goreplay"
+}
+
+########################################
+# 2. Describe the GoReplay DaemonSet
+########################################
+echo
+echo "=================================================="
+echo "2. Describing DaemonSet goreplay-daemon..."
+echo "=================================================="
+run_cmd "$KUBECTL describe daemonset goreplay-daemon -n goreplay" || {
+  echo "WARNING: Failed to describe daemonset goreplay-daemon"
+}
+
+########################################
+# 3. Get list of GoReplay pods (full output)
+########################################
+echo
+echo "=================================================="
+echo "3. Listing goreplay pods (full output)..."
+echo "=================================================="
+
+# Print full output (no -o name here):
+run_cmd "$KUBECTL get pods -n goreplay -l app=goreplay"
+
+# Then retrieve just the names for further processing:
+echo
+echo "Getting goreplay pod names for telemetry collection..."
+pods=$($KUBECTL get pods -n goreplay -l app=goreplay -o name 2>/dev/null) || {
+  echo "ERROR: Failed to list pods with label app=goreplay"
+  exit 1
+}
+echo "Found pods:"
+echo "$pods"
+echo
+
+########################################
+# 4. For each pod, gather logs, describe, and get events
+########################################
+for pod in $pods; do
+  # pod looks like "pod/goreplay-daemon-xyz"
+  pod_name="${pod##*/}"  # remove "pod/" prefix
+
+  echo "=================================================="
+  echo "LOGS for pod: ${pod_name}"
+  echo "=================================================="
+  run_cmd "$KUBECTL logs ${pod_name} -n goreplay" || {
+    echo "WARNING: Failed to get logs for pod ${pod_name}"
+  }
+
+  echo
+  echo "--------------------------------------------------"
+  echo "DESCRIBE for pod: ${pod_name}"
+  echo "--------------------------------------------------"
+  run_cmd "$KUBECTL describe pod -n goreplay ${pod_name}" || {
+    echo "WARNING: Failed to describe pod ${pod_name}"
+  }
+
+  echo
+  echo "--------------------------------------------------"
+  echo "EVENTS for pod: ${pod_name}"
+  echo "--------------------------------------------------"
+  run_cmd "$KUBECTL get events -n goreplay --field-selector involvedObject.name=${pod_name}" || {
+    echo "WARNING: Failed to get events for pod ${pod_name}"
+  }
+  echo
+done
+
+echo "=================================================="
+echo "Telemetry collection complete."
+echo "=================================================="

k8s/goreplay.yaml

@@ -0,0 +1,22 @@
+apiVersion: apps/v1
+kind: DaemonSet
+metadata:
+  name: goreplay-daemon
+spec:
+  selector:
+    matchLabels:
+      app: goreplay
+  template:
+    metadata:
+      labels:
+        app: goreplay
+    spec:
+      hostNetwork: true
+      serviceAccountName: goreplay
+      containers:
+      - name: goreplay
+        image: buger/gor:v2.0.0-rc4
+        args:
+        - "--input-raw k8s://deployments/nginx:80"
+        - "--output-stdout"
+        - "--verbose"

k8s/nginx.yaml

@@ -0,0 +1,36 @@
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: nginx
+  labels:
+    app: nginx
+spec:
+  replicas: 1
+  selector:
+    matchLabels:
+      app: nginx
+  template:
+    metadata:
+      labels:
+        app: nginx
+    spec:
+      containers:
+      - name: nginx
+        image: nginx
+        ports:
+        - containerPort: 80
+   
+---
+apiVersion: v1
+kind: Service
+metadata:
+  name: ngnix-service
+spec:
+  selector:
+    app: nginx
+  type: NodePort
+  ports:
+  - protocol: TCP
+    port: 80
+    targetPort: 80
+   

k8s/rolebinding.yaml

@@ -0,0 +1,12 @@
+kind: ClusterRoleBinding
+apiVersion: rbac.authorization.k8s.io/v1
+metadata:
+  name: goreplay-reader-binding
+subjects:
+- kind: ServiceAccount
+  name: goreplay
+  namespace: goreplay
+roleRef:
+  kind: ClusterRole
+  name: pod-reader
+  apiGroup: ""

kafka.go

@@ -1,35 +1,47 @@
-package main
+package goreplay
 
 import (
 	"bytes"
+	"crypto/sha256"
+	"crypto/sha512"
 	"crypto/tls"
 	"crypto/x509"
 	"errors"
 	"fmt"
+	"github.com/buger/goreplay/proto"
 	"io/ioutil"
 	"log"
 
 	"github.com/Shopify/sarama"
-	"github.com/buger/goreplay/proto"
+	"github.com/xdg-go/scram"
 )
 
+// SASLKafkaConfig SASL configuration
+type SASLKafkaConfig struct {
+	UseSASL   bool   `json:"input-kafka-use-sasl"`
+	Mechanism string `json:"input-kafka-mechanism"`
+	Username  string `json:"input-kafka-username"`
+	Password  string `json:"input-kafka-password"`
+}
+
 // InputKafkaConfig should contains required information to
 // build producers.
 type InputKafkaConfig struct {
-	producer sarama.AsyncProducer
-	consumer sarama.Consumer
-	Host     string `json:"input-kafka-host"`
-	Topic    string `json:"input-kafka-topic"`
-	UseJSON  bool   `json:"input-kafka-json-format"`
+	consumer   sarama.Consumer
+	Host       string `json:"input-kafka-host"`
+	Topic      string `json:"input-kafka-topic"`
+	UseJSON    bool   `json:"input-kafka-json-format"`
+	Offset     string  `json:"input-kafka-offset"`
+	SASLConfig SASLKafkaConfig
 }
 
 // OutputKafkaConfig is the representation of kfka output configuration
 type OutputKafkaConfig struct {
-	producer sarama.AsyncProducer
-	consumer sarama.Consumer
-	Host     string `json:"output-kafka-host"`
-	Topic    string `json:"output-kafka-topic"`
-	UseJSON  bool   `json:"output-kafka-json-format"`
+	producer   sarama.AsyncProducer
+	Host       string `json:"output-kafka-host"`
+	Topic      string `json:"output-kafka-topic"`
+	UseJSON    bool   `json:"output-kafka-json-format"`
+	SASLConfig SASLKafkaConfig
 }
 
 // KafkaTLSConfig should contains TLS certificates for connecting to secured Kafka clusters
@@ -83,7 +95,7 @@ func NewTLSConfig(clientCertFile, clientKeyFile, caCertFile string) (*tls.Config
 }
 
 // NewKafkaConfig returns Kafka config with or without TLS
-func NewKafkaConfig(tlsConfig *KafkaTLSConfig) *sarama.Config {
+func NewKafkaConfig(saslConfig *SASLKafkaConfig, tlsConfig *KafkaTLSConfig) *sarama.Config {
 	config := sarama.NewConfig()
 	// Configuration options go here
 	if tlsConfig != nil && (tlsConfig.ClientCert != "" || tlsConfig.CACert != "") {
@@ -94,6 +106,18 @@ func NewKafkaConfig(tlsConfig *KafkaTLSConfig) *sarama.Config {
 		}
 		config.Net.TLS.Config = tlsConfig
 	}
+	if saslConfig.UseSASL {
+		mechanism := sarama.SASLMechanism(saslConfig.Mechanism)
+		config.Net.SASL.Enable = saslConfig.UseSASL
+		config.Net.SASL.Mechanism = mechanism
+		config.Net.SASL.User = saslConfig.Username
+		config.Net.SASL.Password = saslConfig.Password
+		if mechanism == sarama.SASLTypeSCRAMSHA256 {
+			config.Net.SASL.SCRAMClientGeneratorFunc = func() sarama.SCRAMClient { return &XDGSCRAMClient{HashGeneratorFcn: SHA256} }
+		} else if mechanism == sarama.SASLTypeSCRAMSHA512 {
+			config.Net.SASL.SCRAMClientGeneratorFunc = func() sarama.SCRAMClient { return &XDGSCRAMClient{HashGeneratorFcn: SHA512} }
+		}
+	}
 	return config
 }
 
@@ -115,3 +139,38 @@ func (m KafkaMessage) Dump() ([]byte, error) {
 
 	return b.Bytes(), nil
 }
+
+var (
+	// SHA256 SASLMechanism
+	SHA256 scram.HashGeneratorFcn = sha256.New
+	// SHA512 SASLMechanism
+	SHA512 scram.HashGeneratorFcn = sha512.New
+)
+
+// XDGSCRAMClient for SASL-Protocol
+type XDGSCRAMClient struct {
+	*scram.Client
+	*scram.ClientConversation
+	scram.HashGeneratorFcn
+}
+
+// Begin of XDGSCRAMClient
+func (x *XDGSCRAMClient) Begin(userName, password, authzID string) (err error) {
+	x.Client, err = x.HashGeneratorFcn.NewClient(userName, password, authzID)
+	if err != nil {
+		return err
+	}
+	x.ClientConversation = x.Client.NewConversation()
+	return nil
+}
+
+// Step of XDGSCRAMClient
+func (x *XDGSCRAMClient) Step(challenge string) (response string, err error) {
+	response, err = x.ClientConversation.Step(challenge)
+	return
+}
+
+// Done of XDGSCRAMClient
+func (x *XDGSCRAMClient) Done() bool {
+	return x.ClientConversation.Done()
+}

limiter.go

@@ -1,4 +1,4 @@
-package main
+package goreplay
 
 import (
 	"fmt"
@@ -31,6 +31,22 @@ func parseLimitOptions(options string) (limit int, isPercent bool) {
 	return
 }
 
+func newLimiterExceptions(l *Limiter) {
+
+	if !l.isPercent {
+		return
+	}
+	speedFactor := float64(l.limit) / float64(100)
+
+	// FileInput、KafkaInput have its own rate limiting. Unlike other inputs we not just dropping requests, we can slow down or speed up request emittion.
+	switch input := l.plugin.(type) {
+	case *FileInput:
+		input.speedFactor = speedFactor
+	case *KafkaInput:
+		input.speedFactor = speedFactor
+	}
+}
+
 // NewLimiter constructor for Limiter, accepts plugin and options
 // `options` allow to sprcify relatve or absolute limiting
 func NewLimiter(plugin interface{}, options string) PluginReadWriter {
@@ -39,17 +55,28 @@ func NewLimiter(plugin interface{}, options string) PluginReadWriter {
 	l.plugin = plugin
 	l.currentTime = time.Now().UnixNano()
 
-	// FileInput have its own rate limiting. Unlike other inputs we not just dropping requests, we can slow down or speed up request emittion.
-	if fi, ok := l.plugin.(*FileInput); ok && l.isPercent {
-		fi.speedFactor = float64(l.limit) / float64(100)
-	}
+	newLimiterExceptions(l)
 
 	return l
 }
 
+func (l *Limiter) isLimitedExceptions() bool {
+	if !l.isPercent {
+		return false
+	}
+	// Fileinput、Kafkainput have its own limiting algorithm
+	switch l.plugin.(type) {
+	case *FileInput:
+		return true
+	case *KafkaInput:
+		return true
+	default:
+		return false
+	}
+}
+
 func (l *Limiter) isLimited() bool {
-	// File input have its own limiting algorithm
-	if _, ok := l.plugin.(*FileInput); ok && l.isPercent {
+	if l.isLimitedExceptions() {
 		return false
 	}
 

limiter_test.go

@@ -1,6 +1,6 @@
-// +build !race
+//go:build !race
 
-package main
+package goreplay
 
 import (
 	"sync"

middleware.go

@@ -1,4 +1,4 @@
-package main
+package goreplay
 
 import (
 	"bufio"

middleware/README.md

@@ -117,6 +117,115 @@ Package expose following functions to process raw HTTP payloads:
 Also it is totally legit to use standard `Buffer` functions like `indexOf` for processing the HTTP payload. Just do not forget that if you modify the body, update the `Content-Length` header with a new value. And if you modify any of the headers, line endings should be `\r\n`. Rest is up to your imagination.
 
 
+## Masking PII Data
+
+This middleware provides functionality to mask Personally Identifiable Information (PII) data in HTTP requests based on specified headers and JSON paths. It allows you to define a configuration object that specifies which headers and JSON fields should be masked and the type of data they represent.
+
+```javascript
+const gor = require("goreplay_middleware");
+const faker = require("faker");
+
+// Initialize the middleware
+gor.init();
+
+// Configuration for masking PII data
+const maskConfig = {
+  headers: [
+    { name: "Authorization", type: "token" },
+    { name: "X-API-Key", type: "token" },
+    { name: "X-User-Email", type: "email" },
+    { name: "X-User-Name", type: "name" },
+  ],
+  jsonPaths: [
+    { path: "$.user.email", type: "email" },
+    { path: "$.user.name", type: "name" },
+    { path: "$.user.phone", type: "phone" },
+    { path: "$.user.address", type: "address" },
+  ],
+};
+
+// Function to mask a value based on its type
+function maskValue(type) {
+  switch (type) {
+    case "email":
+      return faker.internet.email();
+    case "name":
+      return faker.name.findName();
+    case "phone":
+      return faker.phone.phoneNumber();
+    case "address":
+      return faker.address.streetAddress();
+    case "token":
+      return faker.random.alphaNumeric(32);
+    default:
+      return "***";
+  }
+}
+
+// Middleware function to mask PII data
+gor.on("message", (data) => {
+  // Mask headers
+  maskConfig.headers.forEach((header) => {
+    const value = gor.httpHeader(data.http, header.name);
+    if (value) {
+      data.http = gor.setHttpHeader(data.http, header.name, maskValue(header.type));
+    }
+  });
+
+  // Mask JSON fields
+  const body = gor.httpBody(data.http);
+  if (body) {
+    try {
+      const jsonBody = JSON.parse(body.toString());
+      maskConfig.jsonPaths.forEach((field) => {
+        const value = eval(`jsonBody${field.path.slice(1)}`);
+        if (value) {
+          eval(`jsonBody${field.path.slice(1)} = maskValue(field.type)`);
+        }
+      });
+      data.http = gor.setHttpBody(data.http, Buffer.from(JSON.stringify(jsonBody)));
+    } catch (error) {
+      console.error("Error parsing JSON body:", error);
+    }
+  }
+
+  return data;
+});
+```
+
+### Configuration
+
+The `maskConfig` object is used to configure the masking behavior. It consists of two properties:
+
+- `headers`: An array of objects representing the headers to be masked. Each object should have the following properties:
+  - `name`: The name of the header.
+  - `type`: The type of data the header represents (e.g., "email", "name", "token").
+
+- `jsonPaths`: An array of objects representing the JSON paths to be masked. Each object should have the following properties:
+  - `path`: The JSON path to the field to be masked (e.g., "$.user.email").
+  - `type`: The type of data the field represents (e.g., "email", "name", "phone", "address").
+
+### Masking Function
+
+The `maskValue` function is responsible for generating masked values based on the data type. It uses the Faker library to generate realistic-looking masked data for different types such as email, name, phone, address, and token. You can extend this function to support additional data types or customize the masking behavior.
+
+### Middleware Function
+
+The middleware function is triggered for each HTTP message (request or response) processed by GoReplay. It performs the following steps:
+
+1. Iterate over the specified headers in the `maskConfig` and mask their values using the `maskValue` function based on the associated data type.
+
+2. Parse the JSON body of the request (if present) and iterate over the specified JSON paths in the `maskConfig`. If a value exists at a given path, replace it with a masked value generated by the `maskValue` function based on the associated data type.
+
+3. Update the request body with the masked JSON data.
+
+4. Return the modified HTTP message.
+
+Note: The middleware uses the `eval` function to dynamically access and modify the JSON object based on the provided paths. Exercise caution when using `eval` and ensure that the paths are properly validated to prevent potential security risks.
+
+To use this middleware, make sure to install the required dependencies (`goreplay_middleware` and `faker`), configure the `maskConfig` object according to your needs, and run the middleware with GoReplay.
+
+
 ## Support
 
 Feel free to ask questions here and by sending email to [support@goreplay.org](mailto:support@goreplay.org). Commercial support is available and welcomed 🙈.

middleware_test.go

@@ -1,4 +1,4 @@
-package main
+package goreplay
 
 import (
 	"bytes"
@@ -9,14 +9,12 @@ import (
 	"sync/atomic"
 	"syscall"
 	"testing"
-
-	"github.com/buger/goreplay/proto"
 )
 
 const echoSh = "./examples/middleware/echo.sh"
 const tokenModifier = "go run ./examples/middleware/token_modifier.go"
 
-var noDebug = append(syscall.Environ(), "GOR_TEST=1")
+var withDebug = append(syscall.Environ(), "GOR_TEST=1")
 
 func initMiddleware(cmd *exec.Cmd, cancl context.CancelFunc, l PluginReader, c func(error)) *Middleware {
 	var m Middleware
@@ -52,7 +50,7 @@ func initCmd(command string, env []string) (*exec.Cmd, context.CancelFunc) {
 func TestMiddlewareEarlyClose(t *testing.T) {
 	quit := make(chan struct{})
 	in := NewTestInput()
-	cmd, cancl := initCmd(echoSh, noDebug)
+	cmd, cancl := initCmd(echoSh, withDebug)
 	midd := initMiddleware(cmd, cancl, in, func(err error) {
 		if err != nil {
 			if e, ok := err.(*exec.ExitError); ok {
@@ -89,66 +87,66 @@ func TestMiddlewareEarlyClose(t *testing.T) {
 	<-quit
 }
 
-func TestTokenMiddleware(t *testing.T) {
-	quit := make(chan struct{})
-	in := NewTestInput()
-	in.skipHeader = true
-	cmd, cancl := initCmd(tokenModifier, noDebug)
-	midd := initMiddleware(cmd, cancl, in, func(err error) {})
-	req := []byte("1 932079936fa4306fc308d67588178d17d823647c 1439818823587396305 200\nGET /token HTTP/1.1\r\nHost: example.org\r\n\r\n")
-	res := []byte("2 932079936fa4306fc308d67588178d17d823647c 1439818823587396305 200\nHTTP/1.1 200 OK\r\nContent-Length: 10\r\nContent-Type: text/plain; charset=utf-8\r\n\r\n17d823647c")
-	rep := []byte("3 932079936fa4306fc308d67588178d17d823647c 1439818823587396305 200\nHTTP/1.1 200 OK\r\nContent-Length: 15\r\nContent-Type: text/plain; charset=utf-8\r\n\r\n932079936fa4306")
-	count := uint32(0)
-	out := NewTestOutput(func(msg *Message) {
-		if msg.Meta[0] == '1' && !bytes.Equal(payloadID(msg.Meta), payloadID(req)) {
-			token, _, _ := proto.PathParam(msg.Data, []byte("token"))
-			if !bytes.Equal(token, proto.Body(rep)) {
-				t.Error("expected the token to be equal to the replayed responses's token")
-			}
-		}
-		atomic.AddUint32(&count, 1)
-		if atomic.LoadUint32(&count) == 2 {
-			quit <- struct{}{}
-		}
-	})
-	pl := &InOutPlugins{}
-	pl.Inputs = []PluginReader{midd, in}
-	pl.Outputs = []PluginWriter{out}
-	pl.All = []interface{}{midd, out, in}
-	e := NewEmitter()
-	go e.Start(pl, "")
-	in.EmitBytes(req) // emit original request
-	in.EmitBytes(res) // emit its response
-	in.EmitBytes(rep) // emit replayed response
-	// emit the request which should have modified token
-	token := []byte("1 8e091765ae902fef8a2b7d9dd96 14398188235873 100\nGET /?token=17d823647c HTTP/1.1\r\nHost: example.org\r\n\r\n")
-	in.EmitBytes(token)
-	<-quit
-	midd.Close()
-}
+//func TestTokenMiddleware(t *testing.T) {
+//	quit := make(chan struct{})
+//	in := NewTestInput()
+//	in.skipHeader = true
+//	cmd, cancl := initCmd(tokenModifier, withDebug)
+//	midd := initMiddleware(cmd, cancl, in, func(err error) {})
+//	req := []byte("1 932079936fa4306fc308d67588178d17d823647c 1439818823587396305 200\nGET /token HTTP/1.1\r\nHost: example.org\r\n\r\n")
+//	res := []byte("2 932079936fa4306fc308d67588178d17d823647c 1439818823587396305 200\nHTTP/1.1 200 OK\r\nContent-Length: 10\r\nContent-Type: text/plain; charset=utf-8\r\n\r\n17d823647c")
+//	rep := []byte("3 932079936fa4306fc308d67588178d17d823647c 1439818823587396305 200\nHTTP/1.1 200 OK\r\nContent-Length: 15\r\nContent-Type: text/plain; charset=utf-8\r\n\r\n932079936fa4306")
+//	count := uint32(0)
+//	out := NewTestOutput(func(msg *Message) {
+//		if msg.Meta[0] == '1' && !bytes.Equal(payloadID(msg.Meta), payloadID(req)) {
+//			token, _, _ := proto.PathParam(msg.Data, []byte("token"))
+//			if !bytes.Equal(token, proto.Body(rep)) {
+//				t.Errorf("expected the token %s to be equal to the replayed response's token %s", token, proto.Body(rep))
+//			}
+//		}
+//		atomic.AddUint32(&count, 1)
+//		if atomic.LoadUint32(&count) == 2 {
+//			quit <- struct{}{}
+//		}
+//	})
+//	pl := &InOutPlugins{}
+//	pl.Inputs = []PluginReader{midd, in}
+//	pl.Outputs = []PluginWriter{out}
+//	pl.All = []interface{}{midd, out, in}
+//	e := NewEmitter()
+//	go e.Start(pl, "")
+//	in.EmitBytes(req) // emit original request
+//	in.EmitBytes(res) // emit its response
+//	in.EmitBytes(rep) // emit replayed response
+//	// emit the request which should have modified token
+//	token := []byte("1 8e091765ae902fef8a2b7d9dd96 14398188235873 100\nGET /?token=17d823647c HTTP/1.1\r\nHost: example.org\r\n\r\n")
+//	in.EmitBytes(token)
+//	<-quit
+//	midd.Close()
+//}
 
-func TestMiddlewareWithPrettify(t *testing.T) {
-	Settings.PrettifyHTTP = true
-	quit := make(chan struct{})
-	in := NewTestInput()
-	cmd, cancl := initCmd(echoSh, noDebug)
-	midd := initMiddleware(cmd, cancl, in, func(err error) {})
-	var b1 = []byte("POST / HTTP/1.1\r\nHost: example.org\r\nTransfer-Encoding: chunked\r\n\r\n4\r\nWiki\r\n5\r\npedia\r\nE\r\n in\r\n\r\nchunks.\r\n0\r\n\r\n")
-	var b2 = []byte("POST / HTTP/1.1\r\nHost: example.org\r\nContent-Length: 25\r\n\r\nWikipedia in\r\n\r\nchunks.")
-	out := NewTestOutput(func(msg *Message) {
-		if !bytes.Equal(proto.Body(b2), proto.Body(msg.Data)) {
-			t.Errorf("expected %q body to equal %q body", b2, msg.Data)
-		}
-		quit <- struct{}{}
-	})
-	pl := &InOutPlugins{}
-	pl.Inputs = []PluginReader{midd, in}
-	pl.Outputs = []PluginWriter{out}
-	pl.All = []interface{}{midd, out, in}
-	e := NewEmitter()
-	go e.Start(pl, "")
-	in.EmitBytes(b1)
-	<-quit
-	midd.Close()
-	Settings.PrettifyHTTP = false
-}
+//func TestMiddlewareWithPrettify(t *testing.T) {
+//	Settings.PrettifyHTTP = true
+//	quit := make(chan struct{})
+//	in := NewTestInput()
+//	cmd, cancl := initCmd(echoSh, withDebug)
+//	midd := initMiddleware(cmd, cancl, in, func(err error) {})
+//	var b1 = []byte("POST / HTTP/1.1\r\nHost: example.org\r\nTransfer-Encoding: chunked\r\n\r\n4\r\nWiki\r\n5\r\npedia\r\nE\r\n in\r\n\r\nchunks.\r\n0\r\n\r\n")
+//	var b2 = []byte("POST / HTTP/1.1\r\nHost: example.org\r\nContent-Length: 25\r\n\r\nWikipedia in\r\n\r\nchunks.")
+//	out := NewTestOutput(func(msg *Message) {
+//		if !bytes.Equal(proto.Body(b2), proto.Body(msg.Data)) {
+//			t.Errorf("expected %q body to equal %q body", b2, msg.Data)
+//		}
+//		quit <- struct{}{}
+//	})
+//	pl := &InOutPlugins{}
+//	pl.Inputs = []PluginReader{midd, in}
+//	pl.Outputs = []PluginWriter{out}
+//	pl.All = []interface{}{midd, out, in}
+//	e := NewEmitter()
+//	go e.Start(pl, "")
+//	in.EmitBytes(b1)
+//	<-quit
+//	midd.Close()
+//	Settings.PrettifyHTTP = false
+//}

nfpm.yaml

@@ -0,0 +1,21 @@
+# nfpm example config file
+#
+# check https://nfpm.goreleaser.com/configuration for detailed usage
+#
+name: "GoReplay"
+arch: ${PLATFORM}
+platform: "linux"
+version: ${VERSION}
+section: "default"
+priority: "extra"
+provides:
+- goreplay
+maintainer: "Leonid Bugaev <hello@goreplay.org>"
+description: |
+ GoReplay is the simplest and safest way to test your app using real traffic before you put it into production. 
+vendor: "GoReplay"
+homepage: "https://goreplay.org"
+license: "AGPL"
+contents:
+- src: ./${BIN_NAME}
+  dst: /usr/local/bin

output_binary.go

@@ -1,12 +1,16 @@
-package main
+//go:build !pro
+
+package goreplay
 
 import (
-	"sync/atomic"
+	"errors"
 	"time"
 
-	"github.com/buger/goreplay/size"
+	"github.com/buger/goreplay/internal/size"
 )
 
+var _ PluginWriter = (*BinaryOutput)(nil)
+
 // BinaryOutputConfig struct for holding binary output configuration
 type BinaryOutputConfig struct {
 	Workers        int           `json:"output-binary-workers"`
@@ -20,155 +24,30 @@ type BinaryOutputConfig struct {
 // By default workers pool is dynamic and starts with 10 workers
 // You can specify fixed number of workers using `--output-tcp-workers`
 type BinaryOutput struct {
-	// Keep this as first element of struct because it guarantees 64bit
-	// alignment. atomic.* functions crash on 32bit machines if operand is not
-	// aligned at 64bit. See https://github.com/golang/go/issues/599
-	activeWorkers int64
-	address       string
-	queue         chan *Message
-	responses     chan response
-	needWorker    chan int
-	quit          chan struct{}
-	config        *BinaryOutputConfig
-	queueStats    *GorStat
+	address string
 }
 
 // NewBinaryOutput constructor for BinaryOutput
 // Initialize workers
 func NewBinaryOutput(address string, config *BinaryOutputConfig) PluginReadWriter {
-	o := new(BinaryOutput)
-
-	o.address = address
-	o.config = config
-
-	o.queue = make(chan *Message, 1000)
-	o.responses = make(chan response, 1000)
-	o.needWorker = make(chan int, 1)
-	o.quit = make(chan struct{})
-
-	// Initial workers count
-	if o.config.Workers == 0 {
-		o.needWorker <- initialDynamicWorkers
-	} else {
-		o.needWorker <- o.config.Workers
-	}
-
-	go o.workerMaster()
-
-	return o
+	return &BinaryOutput{address: address}
 }
 
-func (o *BinaryOutput) workerMaster() {
-	for {
-		newWorkers := <-o.needWorker
-		for i := 0; i < newWorkers; i++ {
-			go o.startWorker()
-		}
-
-		// Disable dynamic scaling if workers poll fixed size
-		if o.config.Workers != 0 {
-			return
-		}
-	}
-}
-
-func (o *BinaryOutput) startWorker() {
-	client := NewTCPClient(o.address, &TCPClientConfig{
-		Debug:              o.config.Debug,
-		Timeout:            o.config.Timeout,
-		ResponseBufferSize: int(o.config.BufferSize),
-	})
-
-	deathCount := 0
-
-	atomic.AddInt64(&o.activeWorkers, 1)
-
-	for {
-		select {
-		case msg := <-o.queue:
-			o.sendRequest(client, msg)
-			deathCount = 0
-		case <-time.After(time.Millisecond * 100):
-			// When dynamic scaling enabled workers die after 2s of inactivity
-			if o.config.Workers == 0 {
-				deathCount++
-			} else {
-				continue
-			}
-
-			if deathCount > 20 {
-				workersCount := atomic.LoadInt64(&o.activeWorkers)
-
-				// At least 1 startWorker should be alive
-				if workersCount != 1 {
-					atomic.AddInt64(&o.activeWorkers, -1)
-					return
-				}
-			}
-		}
-	}
-}
-
-// PluginWrite writes a message tothis plugin
+// PluginWrite writes a message to this plugin
 func (o *BinaryOutput) PluginWrite(msg *Message) (n int, err error) {
-	if !isRequestPayload(msg.Meta) {
-		return len(msg.Data), nil
-	}
-
-	o.queue <- msg
-
-	if o.config.Workers == 0 {
-		workersCount := atomic.LoadInt64(&o.activeWorkers)
-
-		if len(o.queue) > int(workersCount) {
-			o.needWorker <- len(o.queue)
-		}
-	}
-
-	return len(msg.Data) + len(msg.Meta), nil
+	return 0, errors.New("binary output is only available in PRO version")
 }
 
 // PluginRead reads a message from this plugin
 func (o *BinaryOutput) PluginRead() (*Message, error) {
-	var resp response
-	var msg Message
-	select {
-	case <-o.quit:
-		return nil, ErrorStopped
-	case resp = <-o.responses:
-	}
-	msg.Data = resp.payload
-	msg.Meta = payloadHeader(ReplayedResponsePayload, resp.uuid, resp.startedAt, resp.roundTripTime)
-
-	return &msg, nil
-}
-
-func (o *BinaryOutput) sendRequest(client *TCPClient, msg *Message) {
-	if !isRequestPayload(msg.Meta) {
-		return
-	}
-
-	uuid := payloadID(msg.Meta)
-
-	start := time.Now()
-	resp, err := client.Send(msg.Data)
-	stop := time.Now()
-
-	if err != nil {
-		Debug(1, "Request error:", err)
-	}
-
-	if o.config.TrackResponses {
-		o.responses <- response{resp, uuid, start.UnixNano(), stop.UnixNano() - start.UnixNano()}
-	}
+	return nil, errors.New("binary output is only available in PRO version")
 }
 
 func (o *BinaryOutput) String() string {
-	return "Binary output: " + o.address
+	return "Binary output: " + o.address + " (PRO version required)"
 }
 
 // Close closes this plugin for reading
 func (o *BinaryOutput) Close() error {
-	close(o.quit)
 	return nil
 }

output_binary_pro.go

@@ -0,0 +1,178 @@
+//go:build pro
+
+package goreplay
+
+import (
+	"sync/atomic"
+	"time"
+
+	"github.com/buger/goreplay/internal/size"
+)
+
+var _ PluginWriter = (*BinaryOutput)(nil)
+
+// BinaryOutputConfig struct for holding binary output configuration
+type BinaryOutputConfig struct {
+	Workers        int           `json:"output-binary-workers"`
+	Timeout        time.Duration `json:"output-binary-timeout"`
+	BufferSize     size.Size     `json:"output-tcp-response-buffer"`
+	Debug          bool          `json:"output-binary-debug"`
+	TrackResponses bool          `json:"output-binary-track-response"`
+}
+
+// BinaryOutput plugin manage pool of workers which send request to replayed server
+// By default workers pool is dynamic and starts with 10 workers
+// You can specify fixed number of workers using `--output-tcp-workers`
+type BinaryOutput struct {
+	// Keep this as first element of struct because it guarantees 64bit
+	// alignment. atomic.* functions crash on 32bit machines if operand is not
+	// aligned at 64bit. See https://github.com/golang/go/issues/599
+	activeWorkers int64
+	address       string
+	queue         chan *Message
+	responses     chan response
+	needWorker    chan int
+	quit          chan struct{}
+	config        *BinaryOutputConfig
+	queueStats    *GorStat
+}
+
+// NewBinaryOutput constructor for BinaryOutput
+// Initialize workers
+func NewBinaryOutput(address string, config *BinaryOutputConfig) PluginReadWriter {
+	o := new(BinaryOutput)
+
+	o.address = address
+	o.config = config
+
+	o.queue = make(chan *Message, 1000)
+	o.responses = make(chan response, 1000)
+	o.needWorker = make(chan int, 1)
+	o.quit = make(chan struct{})
+
+	// Initial workers count
+	if o.config.Workers == 0 {
+		o.needWorker <- initialDynamicWorkers
+	} else {
+		o.needWorker <- o.config.Workers
+	}
+
+	go o.workerMaster()
+
+	return o
+}
+
+func (o *BinaryOutput) workerMaster() {
+	for {
+		newWorkers := <-o.needWorker
+		for i := 0; i < newWorkers; i++ {
+			go o.startWorker()
+		}
+
+		// Disable dynamic scaling if workers poll fixed size
+		if o.config.Workers != 0 {
+			return
+		}
+	}
+}
+
+func (o *BinaryOutput) startWorker() {
+	client := NewTCPClient(o.address, &TCPClientConfig{
+		Debug:              o.config.Debug,
+		Timeout:            o.config.Timeout,
+		ResponseBufferSize: int(o.config.BufferSize),
+	})
+
+	deathCount := 0
+
+	atomic.AddInt64(&o.activeWorkers, 1)
+
+	for {
+		select {
+		case msg := <-o.queue:
+			o.sendRequest(client, msg)
+			deathCount = 0
+		case <-time.After(time.Millisecond * 100):
+			// When dynamic scaling enabled workers die after 2s of inactivity
+			if o.config.Workers == 0 {
+				deathCount++
+			} else {
+				continue
+			}
+
+			if deathCount > 20 {
+				workersCount := atomic.LoadInt64(&o.activeWorkers)
+
+				// At least 1 startWorker should be alive
+				if workersCount != 1 {
+					atomic.AddInt64(&o.activeWorkers, -1)
+					return
+				}
+			}
+		}
+	}
+}
+
+// PluginWrite writes a message tothis plugin
+func (o *BinaryOutput) PluginWrite(msg *Message) (n int, err error) {
+	if !isRequestPayload(msg.Meta) {
+		return len(msg.Data), nil
+	}
+
+	o.queue <- msg
+
+	if o.config.Workers == 0 {
+		workersCount := atomic.LoadInt64(&o.activeWorkers)
+
+		if len(o.queue) > int(workersCount) {
+			o.needWorker <- len(o.queue)
+		}
+	}
+
+	return len(msg.Data) + len(msg.Meta), nil
+}
+
+// PluginRead reads a message from this plugin
+func (o *BinaryOutput) PluginRead() (*Message, error) {
+	var resp response
+	var msg Message
+	select {
+	case <-o.quit:
+		return nil, ErrorStopped
+	case resp = <-o.responses:
+	}
+	msg.Data = resp.payload
+	msg.Meta = payloadHeader(ReplayedResponsePayload, resp.uuid, resp.startedAt, resp.roundTripTime)
+
+	return &msg, nil
+}
+
+func (o *BinaryOutput) sendRequest(client *TCPClient, msg *Message) {
+	if !isRequestPayload(msg.Meta) {
+		return
+	}
+
+	uuid := payloadID(msg.Meta)
+
+	start := time.Now()
+	resp, err := client.Send(msg.Data)
+	stop := time.Now()
+
+	if err != nil {
+		Debug(1, "Request error:", err)
+	}
+
+	if o.config.TrackResponses {
+		o.responses <- response{resp, uuid, start.UnixNano(), stop.UnixNano() - start.UnixNano()}
+	}
+}
+
+func (o *BinaryOutput) String() string {
+	return "Binary output: " + o.address
+}
+
+// Close closes this plugin for reading
+func (o *BinaryOutput) Close() error {
+	close(o.quit)
+	return nil
+}

output_dummy.go

@@ -1,4 +1,4 @@
-package main
+package goreplay
 
 import (
 	"os"

output_file.go

@@ -1,10 +1,11 @@
-package main
+package goreplay
 
 import (
 	"bufio"
 	"compress/gzip"
 	"errors"
 	"fmt"
+	"github.com/buger/goreplay/internal/size"
 	"io"
 	"log"
 	"math/rand"
@@ -16,8 +17,6 @@ import (
 	"strings"
 	"sync"
 	"time"
-
-	"github.com/buger/goreplay/size"
 )
 
 var letters = []rune("abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ")
@@ -82,7 +81,6 @@ func NewFileOutput(pathTemplate string, config *FileOutputConfig) *FileOutput {
 	o := new(FileOutput)
 	o.pathTemplate = pathTemplate
 	o.config = config
-	o.updateName()
 
 	if strings.Contains(pathTemplate, "%r") {
 		o.requestPerFile = true
@@ -98,7 +96,6 @@ func NewFileOutput(pathTemplate string, config *FileOutputConfig) *FileOutput {
 			if o.IsClosed() {
 				break
 			}
-			o.updateName()
 			o.flush()
 		}
 	}()
@@ -195,7 +192,6 @@ func (o *FileOutput) filename() string {
 
 				if nextChunk {
 					fileIndex++
-					o.currentFileSize = 0
 				}
 			}
 
@@ -309,6 +305,8 @@ func (o *FileOutput) closeLocked() error {
 	}
 
 	o.closed = true
+	o.currentFileSize = 0
+
 	return nil
 }
 

output_file_test.go

@@ -1,7 +1,8 @@
-package main
+package goreplay
 
 import (
 	"fmt"
+	"github.com/buger/goreplay/internal/size"
 	"math/rand"
 	"os"
 	"reflect"
@@ -10,8 +11,6 @@ import (
 	"sync/atomic"
 	"testing"
 	"time"
-
-	"github.com/buger/goreplay/size"
 )
 
 func TestFileOutput(t *testing.T) {
@@ -315,7 +314,6 @@ func TestFileOutputAppendSizeLimitOverflow(t *testing.T) {
 	name2 := output.file.Name()
 
 	output.flush()
-	output.updateName()
 
 	output.PluginWrite(&Message{Meta: []byte("1 1 1\r\n"), Data: []byte("test")})
 	name3 := output.file.Name()

output_http.go

@@ -1,4 +1,4 @@
-package main
+package goreplay
 
 import (
 	"bufio"
@@ -13,7 +13,7 @@ import (
 	"sync/atomic"
 	"time"
 
-	"github.com/buger/goreplay/size"
+	"github.com/buger/goreplay/internal/size"
 )
 
 const (
@@ -25,42 +25,100 @@ const (
 type response struct {
 	payload       []byte
 	uuid          []byte
-	roundTripTime int64
 	startedAt     int64
+	roundTripTime int64
 }
 
 // HTTPOutputConfig struct for holding http output configuration
 type HTTPOutputConfig struct {
-	TrackResponses bool          `json:"output-http-track-response"`
-	Stats          bool          `json:"output-http-stats"`
-	OriginalHost   bool          `json:"output-http-original-host"`
-	RedirectLimit  int           `json:"output-http-redirect-limit"`
-	WorkersMin     int           `json:"output-http-workers-min"`
-	WorkersMax     int           `json:"output-http-workers"`
-	StatsMs        int           `json:"output-http-stats-ms"`
-	QueueLen       int           `json:"output-http-queue-len"`
-	ElasticSearch  string        `json:"output-http-elasticsearch"`
-	Timeout        time.Duration `json:"output-http-timeout"`
-	WorkerTimeout  time.Duration `json:"output-http-worker-timeout"`
-	BufferSize     size.Size     `json:"output-http-response-buffer"`
-	SkipVerify     bool          `json:"output-http-skip-verify"`
-	rawURL         string
-	url            *url.URL
+	TrackResponses    bool          `json:"output-http-track-response"`
+	Stats             bool          `json:"output-http-stats"`
+	OriginalHost      bool          `json:"output-http-original-host"`
+	RedirectLimit     int           `json:"output-http-redirect-limit"`
+	WorkersMin        int           `json:"output-http-workers-min"`
+	WorkersMax        int           `json:"output-http-workers"`
+	StatsMs           int           `json:"output-http-stats-ms"`
+	QueueLen          int           `json:"output-http-queue-len"`
+	ElasticSearch     string        `json:"output-http-elasticsearch"`
+	Timeout           time.Duration `json:"output-http-timeout"`
+	WorkerTimeout     time.Duration `json:"output-http-worker-timeout"`
+	BufferSize        size.Size     `json:"output-http-response-buffer"`
+	SkipVerify        bool          `json:"output-http-skip-verify"`
+	CompatibilityMode bool          `json:"output-http-compatibility-mode"`
+	RequestGroup      string        `json:"output-http-request-group"`
+	Debug             bool          `json:"output-http-debug"`
+	rawURL            string
+	url               *url.URL
+}
+
+func (hoc *HTTPOutputConfig) Copy() *HTTPOutputConfig {
+	return &HTTPOutputConfig{
+		TrackResponses:    hoc.TrackResponses,
+		Stats:             hoc.Stats,
+		OriginalHost:      hoc.OriginalHost,
+		RedirectLimit:     hoc.RedirectLimit,
+		WorkersMin:        hoc.WorkersMin,
+		WorkersMax:        hoc.WorkersMax,
+		StatsMs:           hoc.StatsMs,
+		QueueLen:          hoc.QueueLen,
+		ElasticSearch:     hoc.ElasticSearch,
+		Timeout:           hoc.Timeout,
+		WorkerTimeout:     hoc.WorkerTimeout,
+		BufferSize:        hoc.BufferSize,
+		SkipVerify:        hoc.SkipVerify,
+		CompatibilityMode: hoc.CompatibilityMode,
+		RequestGroup:      hoc.RequestGroup,
+		Debug:             hoc.Debug,
+	}
 }
 
 // HTTPOutput plugin manage pool of workers which send request to replayed server
 // By default workers pool is dynamic and starts with 1 worker or workerMin workers
 // You can specify maximum number of workers using `--output-http-workers`
 type HTTPOutput struct {
-	activeWorkers int32
-	config        *HTTPOutputConfig
-	queueStats    *GorStat
-	elasticSearch *ESPlugin
-	client        *HTTPClient
-	stopWorker    chan struct{}
-	queue         chan *Message
-	responses     chan *response
-	stop          chan bool // Channel used only to indicate goroutine should shutdown
+	activeWorkers  int64
+	config         *HTTPOutputConfig
+	queueStats     *GorStat
+	elasticSearch  *ESPlugin
+	client         *HTTPClient
+	stopWorker     chan struct{}
+	queue          chan *Message
+	responses      chan *response
+	stop           chan bool // Channel used only to indicate goroutine should shutdown
+	workerSessions map[string]*httpWorker
+}
+
+type httpWorker struct {
+	output       *HTTPOutput
+	client       *HTTPClient
+	lastActivity time.Time
+	queue        chan *Message
+	stop         chan bool
+}
+
+func newHTTPWorker(output *HTTPOutput, queue chan *Message) *httpWorker {
+	client := NewHTTPClient(output.config)
+
+	w := &httpWorker{client: client, output: output}
+	if queue == nil {
+		w.queue = make(chan *Message, 100)
+	} else {
+		w.queue = queue
+	}
+	w.stop = make(chan bool)
+
+	go func() {
+		for {
+			select {
+			case msg := <-w.queue:
+				output.sendRequest(client, msg)
+			case <-w.stop:
+				return
+			}
+		}
+	}()
+
+	return w
 }
 
 // NewHTTPOutput constructor for HTTPOutput
@@ -68,42 +126,43 @@ type HTTPOutput struct {
 func NewHTTPOutput(address string, config *HTTPOutputConfig) PluginReadWriter {
 	o := new(HTTPOutput)
 	var err error
-	config.url, err = url.Parse(address)
+	newConfig := config.Copy()
+	newConfig.url, err = url.Parse(address)
 	if err != nil {
 		log.Fatal(fmt.Sprintf("[OUTPUT-HTTP] parse HTTP output URL error[%q]", err))
 	}
-	if config.url.Scheme == "" {
-		config.url.Scheme = "http"
+	if newConfig.url.Scheme == "" {
+		newConfig.url.Scheme = "http"
 	}
-	config.rawURL = config.url.String()
-	if config.Timeout < time.Millisecond*100 {
-		config.Timeout = time.Second
+	newConfig.rawURL = newConfig.url.String()
+	if newConfig.Timeout < time.Millisecond*100 {
+		newConfig.Timeout = time.Second
 	}
-	if config.BufferSize <= 0 {
-		config.BufferSize = 100 * 1024 // 100kb
+	if newConfig.BufferSize <= 0 {
+		newConfig.BufferSize = 100 * 1024 // 100kb
 	}
-	if config.WorkersMin <= 0 {
-		config.WorkersMin = 1
+	if newConfig.WorkersMin <= 0 {
+		newConfig.WorkersMin = 1
 	}
-	if config.WorkersMin > 1000 {
-		config.WorkersMin = 1000
+	if newConfig.WorkersMin > 1000 {
+		newConfig.WorkersMin = 1000
 	}
-	if config.WorkersMax <= 0 {
-		config.WorkersMax = math.MaxInt32 // idealy so large
+	if newConfig.WorkersMax <= 0 {
+		newConfig.WorkersMax = math.MaxInt32 // ideally so large
 	}
-	if config.WorkersMax < config.WorkersMin {
-		config.WorkersMax = config.WorkersMin
+	if newConfig.WorkersMax < newConfig.WorkersMin {
+		newConfig.WorkersMax = newConfig.WorkersMin
 	}
-	if config.QueueLen <= 0 {
-		config.QueueLen = 1000
+	if newConfig.QueueLen <= 0 {
+		newConfig.QueueLen = 1000
 	}
-	if config.RedirectLimit < 0 {
-		config.RedirectLimit = 0
+	if newConfig.RedirectLimit < 0 {
+		newConfig.RedirectLimit = 0
 	}
-	if config.WorkerTimeout <= 0 {
-		config.WorkerTimeout = time.Second * 2
+	if newConfig.WorkerTimeout <= 0 {
+		newConfig.WorkerTimeout = time.Second * 2
 	}
-	o.config = config
+	o.config = newConfig
 	o.stop = make(chan bool)
 	if o.config.Stats {
 		o.queueStats = NewGorStat("output_http", o.config.StatsMs)
@@ -121,11 +180,18 @@ func NewHTTPOutput(address string, config *HTTPOutputConfig) PluginReadWriter {
 		o.elasticSearch.Init(o.config.ElasticSearch)
 	}
 	o.client = NewHTTPClient(o.config)
-	o.activeWorkers += int32(o.config.WorkersMin)
-	for i := 0; i < o.config.WorkersMin; i++ {
-		go o.startWorker()
+
+	if Settings.RecognizeTCPSessions {
+		o.workerSessions = make(map[string]*httpWorker, 100)
+		go o.sessionWorkerMaster()
+	} else {
+		o.activeWorkers += int64(o.config.WorkersMin)
+		for i := 0; i < o.config.WorkersMin; i++ {
+			go o.startWorker()
+		}
+		go o.workerMaster()
 	}
-	go o.workerMaster()
+
 	return o
 }
 
@@ -146,16 +212,48 @@ func (o *HTTPOutput) workerMaster() {
 		}
 		// rollback workers
 	rollback:
-		if atomic.LoadInt32(&o.activeWorkers) > int32(o.config.WorkersMin) && len(o.queue) < 1 {
+		if atomic.LoadInt64(&o.activeWorkers) > int64(o.config.WorkersMin) && len(o.queue) < 1 {
 			// close one worker
 			o.stopWorker <- struct{}{}
-			atomic.AddInt32(&o.activeWorkers, -1)
+			atomic.AddInt64(&o.activeWorkers, -1)
 			goto rollback
 		}
 		timer.Reset(o.config.WorkerTimeout)
 	}
 }
 
+func (o *HTTPOutput) sessionWorkerMaster() {
+	gc := time.Tick(time.Second)
+
+	for {
+		select {
+		case msg := <-o.queue:
+			id := payloadID(msg.Meta)
+			sessionID := string(id[0:20])
+			worker, ok := o.workerSessions[sessionID]
+
+			if !ok {
+				atomic.AddInt64(&o.activeWorkers, 1)
+				worker = newHTTPWorker(o, nil)
+				o.workerSessions[sessionID] = worker
+			}
+
+			worker.queue <- msg
+			worker.lastActivity = time.Now()
+		case <-gc:
+			now := time.Now()
+
+			for id, w := range o.workerSessions {
+				if !w.lastActivity.IsZero() && now.Sub(w.lastActivity) >= 120*time.Second {
+					w.stop <- true
+					delete(o.workerSessions, id)
+					atomic.AddInt64(&o.activeWorkers, -1)
+				}
+			}
+		}
+	}
+}
+
 func (o *HTTPOutput) startWorker() {
 	for {
 		select {
@@ -182,13 +280,25 @@ func (o *HTTPOutput) PluginWrite(msg *Message) (n int, err error) {
 	if o.config.Stats {
 		o.queueStats.Write(len(o.queue))
 	}
-	if len(o.queue) > 0 {
-		// try to start a new worker to serve
-		if atomic.LoadInt32(&o.activeWorkers) < int32(o.config.WorkersMax) {
-			go o.startWorker()
-			atomic.AddInt32(&o.activeWorkers, 1)
+
+	if !Settings.RecognizeTCPSessions && o.config.WorkersMax != o.config.WorkersMin {
+		workersCount := int(atomic.LoadInt64(&o.activeWorkers))
+
+		if len(o.queue) > workersCount {
+			extraWorkersReq := len(o.queue) - workersCount + 1
+			maxWorkersAvailable := o.config.WorkersMax - workersCount
+			if extraWorkersReq > maxWorkersAvailable {
+				extraWorkersReq = maxWorkersAvailable
+			}
+			if extraWorkersReq > 0 {
+				for i := 0; i < extraWorkersReq; i++ {
+					go o.startWorker()
+					atomic.AddInt64(&o.activeWorkers, 1)
+				}
+			}
 		}
 	}
+
 	return len(msg.Data) + len(msg.Meta), nil
 }
 
@@ -206,7 +316,7 @@ func (o *HTTPOutput) PluginRead() (*Message, error) {
 		msg.Data = resp.payload
 	}
 
-	msg.Meta = payloadHeader(ReplayedResponsePayload, resp.uuid, resp.roundTripTime, resp.startedAt)
+	msg.Meta = payloadHeader(ReplayedResponsePayload, resp.uuid, resp.startedAt, resp.roundTripTime)
 
 	return &msg, nil
 }
@@ -274,7 +384,7 @@ func NewHTTPClient(config *HTTPOutputConfig) *HTTPClient {
 		},
 	}
 	if config.SkipVerify {
-		// clone to avoid modying global default RoundTripper
+		// clone to avoid modifying global default RoundTripper
 		transport = http.DefaultTransport.(*http.Transport).Clone()
 		transport.TLSClientConfig = &tls.Config{InsecureSkipVerify: true}
 		client.Client.Transport = transport
@@ -283,7 +393,7 @@ func NewHTTPClient(config *HTTPOutputConfig) *HTTPClient {
 	return client
 }
 
-// Send sends an http request using client create by NewHTTPClient
+// Send sends an http request using client created by NewHTTPClient
 func (c *HTTPClient) Send(data []byte) ([]byte, error) {
 	var req *http.Request
 	var resp *http.Response

output_http_test.go

@@ -1,4 +1,4 @@
-package main
+package goreplay
 
 import (
 	"io/ioutil"

output_kafka.go

@@ -1,14 +1,13 @@
-package main
+package goreplay
 
 import (
 	"encoding/json"
+	"github.com/buger/goreplay/internal/byteutils"
+	"github.com/buger/goreplay/proto"
 	"log"
 	"strings"
 	"time"
 
-	"github.com/buger/goreplay/byteutils"
-	"github.com/buger/goreplay/proto"
-
 	"github.com/Shopify/sarama"
 	"github.com/Shopify/sarama/mocks"
 )
@@ -23,8 +22,8 @@ type KafkaOutput struct {
 const KafkaOutputFrequency = 500
 
 // NewKafkaOutput creates instance of kafka producer client  with TLS config
-func NewKafkaOutput(address string, config *OutputKafkaConfig, tlsConfig *KafkaTLSConfig) PluginWriter {
-	c := NewKafkaConfig(tlsConfig)
+func NewKafkaOutput(_ string, config *OutputKafkaConfig, tlsConfig *KafkaTLSConfig) PluginWriter {
+	c := NewKafkaConfig(&config.SASLConfig, tlsConfig)
 
 	var producer sarama.AsyncProducer
 

output_kafka_test.go

@@ -1,4 +1,4 @@
-package main
+package goreplay
 
 import (
 	"testing"

output_null.go

@@ -1,4 +1,4 @@
-package main
+package goreplay
 
 // NullOutput used for debugging, prints nothing
 type NullOutput struct {

output_s3.go

@@ -1,131 +1,29 @@
-package main
+//go:build !pro
+
+package goreplay
 
 import (
-	_ "bufio"
+	"errors"
 	"fmt"
-	_ "io"
-	"log"
-	"math/rand"
-	"os"
-	"path/filepath"
-	"strings"
-
-	"github.com/aws/aws-sdk-go/aws"
-	"github.com/aws/aws-sdk-go/aws/session"
-	"github.com/aws/aws-sdk-go/service/s3"
-	_ "github.com/aws/aws-sdk-go/service/s3/s3manager"
 )
 
 // S3Output output plugin
-type S3Output struct {
-	pathTemplate string
-
-	buffer  *FileOutput
-	session *session.Session
-	config  *FileOutputConfig
-	closeCh chan struct{}
-}
+type S3Output struct{}
 
 // NewS3Output constructor for FileOutput, accepts path
 func NewS3Output(pathTemplate string, config *FileOutputConfig) *S3Output {
-	if !PRO {
-		log.Fatal("Using S3 output and input requires PRO license")
-		return nil
-	}
-
-	o := new(S3Output)
-	o.pathTemplate = pathTemplate
-	o.config = config
-	o.config.onClose = o.onBufferUpdate
-
-	if config.BufferPath == "" {
-		config.BufferPath = "/tmp"
-	}
-
-	rnd := rand.Int63()
-	bufferName := fmt.Sprintf("gor_output_s3_%d_buf_", rnd)
-
-	pathParts := strings.Split(pathTemplate, "/")
-	bufferName += pathParts[len(pathParts)-1]
-
-	if strings.HasSuffix(o.pathTemplate, ".gz") {
-		bufferName += ".gz"
-	}
-
-	bufferPath := filepath.Join(config.BufferPath, bufferName)
-
-	o.buffer = NewFileOutput(bufferPath, config)
-	o.connect()
-
-	return o
+	fmt.Println("S3 output is only available in the pro version")
+	return &S3Output{}
 }
 
-func (o *S3Output) connect() {
-	if o.session == nil {
-		o.session = session.Must(session.NewSession(awsConfig()))
-		log.Println("[S3 Output] S3 connection successfully initialized")
-	}
-}
-
-// PluginWrite writes message to this plugin
 func (o *S3Output) PluginWrite(msg *Message) (n int, err error) {
-	return o.buffer.PluginWrite(msg)
+	return 0, errors.New("S3 output is only available in the pro version")
 }
 
 func (o *S3Output) String() string {
-	return "S3 output: " + o.pathTemplate
+	return "S3 output (pro version only)"
 }
 
-// Close close the buffer of the S3 connection
 func (o *S3Output) Close() error {
-	return o.buffer.Close()
-}
-
-func parseS3Url(path string) (bucket, key string) {
-	path = path[5:] // stripping `s3://`
-	sep := strings.IndexByte(path, '/')
-
-	bucket = path[:sep]
-	key = path[sep+1:]
-
-	return bucket, key
-}
-
-func (o *S3Output) keyPath(idx int) (bucket, key string) {
-	bucket, key = parseS3Url(o.pathTemplate)
-
-	for name, fn := range dateFileNameFuncs {
-		key = strings.Replace(key, name, fn(o.buffer), -1)
-	}
-
-	key = setFileIndex(key, idx)
-
-	return
-}
-
-func (o *S3Output) onBufferUpdate(path string) {
-	svc := s3.New(o.session)
-	idx := getFileIndex(path)
-	bucket, key := o.keyPath(idx)
-
-	file, err := os.Open(path)
-	if err != nil {
-		Debug(0, fmt.Sprintf("[S3 Output] Failed to open file %q. err: %q", path, err))
-		return
-	}
-	defer os.Remove(path)
-
-	_, err = svc.PutObject(&s3.PutObjectInput{
-		Body:   file,
-		Bucket: aws.String(bucket),
-		Key:    aws.String(key),
-	})
-	if err != nil {
-		Debug(0, fmt.Sprintf("[S3 Output] Failed to upload data to %q/%q, %q", bucket, key, err))
-		return
-	}
-
-	if o.closeCh != nil {
-		o.closeCh <- struct{}{}
-	}
+	return errors.New("S3 output is only available in the pro version")
 }

output_s3_pro.go

@@ -0,0 +1,117 @@
+//go:build pro
+
+package goreplay
+
+import (
+	_ "bufio"
+	"fmt"
+	_ "io"
+	"log"
+	"math/rand"
+	"os"
+	"path/filepath"
+	"strings"
+
+	"github.com/aws/aws-sdk-go/aws"
+	"github.com/aws/aws-sdk-go/aws/session"
+	"github.com/aws/aws-sdk-go/service/s3"
+	_ "github.com/aws/aws-sdk-go/service/s3/s3manager"
+)
+
+var _ PluginWriter = (*S3Output)(nil)
+
+// S3Output output plugin
+type S3Output struct {
+	pathTemplate string
+
+	buffer  *FileOutput
+	session *session.Session
+	config  *FileOutputConfig
+	closeC  chan struct{}
+}
+
+// NewS3Output constructor for FileOutput, accepts path
+func NewS3Output(pathTemplate string, config *FileOutputConfig) *S3Output {
+	o := new(S3Output)
+	o.pathTemplate = pathTemplate
+	o.config = config
+	o.config.onClose = o.onBufferUpdate
+
+	if config.BufferPath == "" {
+		config.BufferPath = "/tmp"
+	}
+
+	rnd := rand.Int63()
+	buffer_name := fmt.Sprintf("gor_output_s3_%d_buf_", rnd)
+
+	pathParts := strings.Split(pathTemplate, "/")
+	buffer_name += pathParts[len(pathParts)-1]
+
+	if strings.HasSuffix(o.pathTemplate, ".gz") {
+		buffer_name += ".gz"
+	}
+
+	buffer_path := filepath.Join(config.BufferPath, buffer_name)
+
+	o.buffer = NewFileOutput(buffer_path, config)
+	o.connect()
+
+	return o
+}
+
+func (o *S3Output) connect() {
+	if o.session == nil {
+		o.session = session.Must(session.NewSession(awsConfig()))
+		log.Println("[S3 Output] S3 connection succesfully initialized")
+	}
+}
+
+func (o *S3Output) PluginWrite(msg *Message) (n int, err error) {
+	return o.buffer.PluginWrite(msg)
+}
+
+func (o *S3Output) String() string {
+	return "S3 output: " + o.pathTemplate
+}
+
+func (o *S3Output) Close() error {
+	return o.buffer.Close()
+}
+
+func (o *S3Output) keyPath(idx int) (bucket, key string) {
+	bucket, key = parseS3Url(o.pathTemplate)
+
+	for name, fn := range dateFileNameFuncs {
+		key = strings.Replace(key, name, fn(o.buffer), -1)
+	}
+
+	key = setFileIndex(key, idx)
+
+	return
+}
+
+func (o *S3Output) onBufferUpdate(path string) {
+	svc := s3.New(o.session)
+	idx := getFileIndex(path)
+	bucket, key := o.keyPath(idx)
+
+	file, _ := os.Open(path)
+	// reader := bufio.NewReader(file)
+
+	_, err := svc.PutObject(&s3.PutObjectInput{
+		Body:   file,
+		Bucket: aws.String(bucket),
+		Key:    aws.String(key),
+	})
+	if err != nil {
+		log.Printf("[S3 Output] Failed to upload data to %s/%s, %s\n", bucket, key, err)
+		os.Remove(path)
+		return
+	}
+
+	os.Remove(path)
+
+	if o.closeC != nil {
+		o.closeC <- struct{}{}
+	}
+}

output_tcp.go

@@ -1,4 +1,4 @@
-package main
+package goreplay
 
 import (
 	"context"
@@ -29,6 +29,9 @@ type TCPOutputConfig struct {
 	Sticky     bool `json:"output-tcp-sticky"`
 	SkipVerify bool `json:"output-tcp-skip-verify"`
 	Workers    int  `json:"output-tcp-workers"`
+
+	GetInitMessage     func() *Message                         `json:"-"`
+	WriteBeforeMessage func(conn net.Conn, msg *Message) error `json:"-"`
 }
 
 // NewTCPOutput constructor for TCPOutput
@@ -78,21 +81,37 @@ func (o *TCPOutput) worker(bufferIndex int) {
 
 	defer conn.Close()
 
+	if o.config.GetInitMessage != nil {
+		msg := o.config.GetInitMessage()
+		_ = o.writeToConnection(conn, msg)
+	}
+
 	for {
 		msg := <-o.buf[bufferIndex]
+		err = o.writeToConnection(conn, msg)
+		if err != nil {
+			Debug(2, "INFO: TCP output connection closed, reconnecting")
+			go o.worker(bufferIndex)
+			o.buf[bufferIndex] <- msg
+			break
+		}
+	}
+}
+
+func (o *TCPOutput) writeToConnection(conn net.Conn, msg *Message) (err error) {
+	if o.config.WriteBeforeMessage != nil {
+		err = o.config.WriteBeforeMessage(conn, msg)
+	}
+
+	if err == nil {
 		if _, err = conn.Write(msg.Meta); err == nil {
 			if _, err = conn.Write(msg.Data); err == nil {
 				_, err = conn.Write(payloadSeparatorAsBytes)
 			}
 		}
-
-		if err != nil {
-			Debug(2, "INFO: TCP output connection closed, reconnecting")
-			o.buf[bufferIndex] <- msg
-			go o.worker(bufferIndex)
-			break
-		}
 	}
+
+	return err
 }
 
 func (o *TCPOutput) getBufferIndex(msg *Message) int {

output_tcp_test.go

@@ -1,12 +1,15 @@
-package main
+package goreplay
 
 import (
 	"bufio"
 	"log"
 	"net"
+	"strings"
 	"sync"
 	"testing"
 	"time"
+
+	"github.com/stretchr/testify/assert"
 )
 
 func TestTCPOutput(t *testing.T) {
@@ -15,24 +18,8 @@ func TestTCPOutput(t *testing.T) {
 	listener := startTCP(func(data []byte) {
 		wg.Done()
 	})
-	input := NewTestInput()
 	output := NewTCPOutput(listener.Addr().String(), &TCPOutputConfig{Workers: 10})
-
-	plugins := &InOutPlugins{
-		Inputs:  []PluginReader{input},
-		Outputs: []PluginWriter{output},
-	}
-
-	emitter := NewEmitter()
-	go emitter.Start(plugins, Settings.Middleware)
-
-	for i := 0; i < 10; i++ {
-		wg.Add(1)
-		input.EmitGET()
-	}
-
-	wg.Wait()
-	emitter.Close()
+	runTCPOutput(wg, output, 10, false)
 }
 
 func startTCP(cb func([]byte)) net.Listener {
@@ -131,3 +118,76 @@ func getTestBytes() *Message {
 		Data: []byte("GET / HTTP/1.1\r\nHost: www.w3.org\r\nUser-Agent: Go 1.1 package http\r\nAccept-Encoding: gzip\r\n\r\n"),
 	}
 }
+
+func TestTCPOutputGetInitMessage(t *testing.T) {
+	wg := new(sync.WaitGroup)
+
+	var dataList [][]byte
+	listener := startTCP(func(data []byte) {
+		dataList = append(dataList, data)
+		wg.Done()
+	})
+	getInitMessage := func() *Message {
+		return &Message{
+			Meta: []byte{},
+			Data: []byte("test1"),
+		}
+	}
+	output := NewTCPOutput(listener.Addr().String(), &TCPOutputConfig{Workers: 1, GetInitMessage: getInitMessage})
+
+	runTCPOutput(wg, output, 1, true)
+
+	if assert.Equal(t, 2, len(dataList)) {
+		assert.Equal(t, "test1", string(dataList[0]))
+	}
+}
+
+func TestTCPOutputGetInitMessageAndWriteBeforeMessage(t *testing.T) {
+	wg := new(sync.WaitGroup)
+
+	var dataList [][]byte
+	listener := startTCP(func(data []byte) {
+		dataList = append(dataList, data)
+		wg.Done()
+	})
+	getInitMessage := func() *Message {
+		return &Message{
+			Meta: []byte{},
+			Data: []byte("test2"),
+		}
+	}
+	writeBeforeMessage := func(conn net.Conn, _ *Message) error {
+		_, err := conn.Write([]byte("before"))
+		return err
+	}
+	output := NewTCPOutput(listener.Addr().String(), &TCPOutputConfig{Workers: 1, GetInitMessage: getInitMessage, WriteBeforeMessage: writeBeforeMessage})
+
+	runTCPOutput(wg, output, 1, true)
+
+	if assert.Equal(t, 2, len(dataList)) {
+		assert.Equal(t, "beforetest2", string(dataList[0]))
+		assert.True(t, strings.HasPrefix(string(dataList[1]), "before"))
+	}
+}
+
+func runTCPOutput(wg *sync.WaitGroup, output PluginWriter, repeat int, initMessage bool) {
+	input := NewTestInput()
+	plugins := &InOutPlugins{
+		Inputs:  []PluginReader{input},
+		Outputs: []PluginWriter{output},
+	}
+
+	emitter := NewEmitter()
+	go emitter.Start(plugins, Settings.Middleware)
+
+	if initMessage {
+		wg.Add(1)
+	}
+	for i := 0; i < repeat; i++ {
+		wg.Add(1)
+		input.EmitGET()
+	}
+
+	wg.Wait()
+	emitter.Close()
+}

output_ws.go

@@ -0,0 +1,162 @@
+package goreplay
+
+import (
+	"context"
+	"crypto/tls"
+	"encoding/base64"
+	"fmt"
+	"hash/fnv"
+	"log"
+	"net/http"
+	"net/url"
+	"strings"
+	"time"
+
+	"github.com/gorilla/websocket"
+)
+
+// WebSocketOutput used for sending raw tcp payloads
+// Can be used for transferring binary payloads like protocol buffers
+type WebSocketOutput struct {
+	address     string
+	limit       int
+	buf         []chan *Message
+	bufStats    *GorStat
+	config      *WebSocketOutputConfig
+	workerIndex uint32
+	headers     http.Header
+
+	close bool
+}
+
+// WebSocketOutputConfig WebSocket output configuration
+type WebSocketOutputConfig struct {
+	Sticky     bool `json:"output-ws-sticky"`
+	SkipVerify bool `json:"output-ws-skip-verify"`
+	Workers    int  `json:"output-ws-workers"`
+
+	Headers map[string][]string `json:"output-ws-headers"`
+}
+
+// NewWebSocketOutput constructor for WebSocketOutput
+// Initialize X workers which hold keep-alive connection
+func NewWebSocketOutput(address string, config *WebSocketOutputConfig) PluginWriter {
+	o := new(WebSocketOutput)
+
+	u, err := url.Parse(address)
+	if err != nil {
+		log.Fatal(fmt.Sprintf("[OUTPUT-WS] parse WS output URL error[%q]", err))
+	}
+
+	o.config = config
+	o.headers = http.Header{
+		"Authorization": []string{"Basic " + base64.StdEncoding.EncodeToString([]byte(u.User.String()))},
+	}
+	for k, values := range config.Headers {
+		for _, v := range values {
+			o.headers.Add(k, v)
+		}
+	}
+
+	u.User = nil // must be after creating the headers
+	o.address = u.String()
+
+	if Settings.OutputWebSocketStats {
+		o.bufStats = NewGorStat("output_ws", 5000)
+	}
+
+	// create X buffers and send the buffer index to the worker
+	o.buf = make([]chan *Message, o.config.Workers)
+	for i := 0; i < o.config.Workers; i++ {
+		o.buf[i] = make(chan *Message, 100)
+		go o.worker(i)
+	}
+
+	return o
+}
+
+func (o *WebSocketOutput) worker(bufferIndex int) {
+	retries := 0
+	conn, err := o.connect(o.address)
+	for {
+		if o.close {
+			return
+		}
+
+		if err == nil {
+			break
+		}
+
+		Debug(1, fmt.Sprintf("Can't connect to aggregator instance, reconnecting in 1 second. Retries:%d", retries))
+		time.Sleep(1 * time.Second)
+
+		conn, err = o.connect(o.address)
+		retries++
+	}
+
+	if retries > 0 {
+		Debug(2, fmt.Sprintf("Connected to aggregator instance after %d retries", retries))
+	}
+
+	defer conn.Close()
+
+	for {
+		msg := <-o.buf[bufferIndex]
+		err = conn.WriteMessage(websocket.BinaryMessage, append(msg.Meta, msg.Data...))
+		if err != nil {
+			Debug(2, "INFO: WebSocket output connection closed, reconnecting "+err.Error())
+			go o.worker(bufferIndex)
+			o.buf[bufferIndex] <- msg
+			break
+		}
+	}
+}
+
+func (o *WebSocketOutput) getBufferIndex(msg *Message) int {
+	if !o.config.Sticky {
+		o.workerIndex++
+		return int(o.workerIndex) % o.config.Workers
+	}
+
+	hasher := fnv.New32a()
+	hasher.Write(payloadID(msg.Meta))
+	return int(hasher.Sum32()) % o.config.Workers
+}
+
+// PluginWrite writes message to this plugin
+func (o *WebSocketOutput) PluginWrite(msg *Message) (n int, err error) {
+	if !isOriginPayload(msg.Meta) {
+		return len(msg.Data), nil
+	}
+
+	bufferIndex := o.getBufferIndex(msg)
+	o.buf[bufferIndex] <- msg
+
+	if Settings.OutputTCPStats {
+		o.bufStats.Write(len(o.buf[bufferIndex]))
+	}
+
+	return len(msg.Data) + len(msg.Meta), nil
+}
+
+func (o *WebSocketOutput) connect(address string) (conn *websocket.Conn, err error) {
+	ctx, cancel := context.WithTimeout(context.Background(), 5*time.Second)
+	defer cancel()
+
+	d := websocket.DefaultDialer
+	if strings.HasPrefix(address, "wss://") {
+		d.TLSClientConfig = &tls.Config{InsecureSkipVerify: o.config.SkipVerify}
+	}
+
+	conn, _, err = d.DialContext(ctx, address, o.headers)
+	return
+}
+
+func (o *WebSocketOutput) String() string {
+	return fmt.Sprintf("WebSocket output %s, limit: %d", o.address, o.limit)
+}
+
+// Close closes the output
+func (o *WebSocketOutput) Close() {
+	o.close = true
+}

output_ws_test.go

@@ -0,0 +1,82 @@
+package goreplay
+
+import (
+	"log"
+	"net/http"
+	"sync"
+	"testing"
+
+	"github.com/gorilla/websocket"
+	"github.com/stretchr/testify/assert"
+)
+
+func TestWebSocketOutput(t *testing.T) {
+	wg := new(sync.WaitGroup)
+
+	var gotHeader http.Header
+	wsAddr := startWebsocket(func(data []byte) {
+		wg.Done()
+	}, func(header http.Header) {
+		gotHeader = header
+	})
+	input := NewTestInput()
+	headers := map[string][]string{
+		"key1": {"value1"},
+		"key2": {"value2"},
+	}
+	output := NewWebSocketOutput(wsAddr, &WebSocketOutputConfig{Workers: 1, Headers: headers})
+
+	plugins := &InOutPlugins{
+		Inputs:  []PluginReader{input},
+		Outputs: []PluginWriter{output},
+	}
+
+	emitter := NewEmitter()
+	go emitter.Start(plugins, Settings.Middleware)
+
+	for i := 0; i < 10; i++ {
+		wg.Add(1)
+		input.EmitGET()
+	}
+
+	wg.Wait()
+	emitter.Close()
+
+	if assert.NotNil(t, gotHeader) {
+		assert.Equal(t, "Basic dXNlcjE=", gotHeader.Get("Authorization"))
+		for k, values := range headers {
+			assert.Equal(t, 1, len(values))
+			assert.Equal(t, values[0], gotHeader.Get(k))
+		}
+	}
+}
+
+func startWebsocket(cb func([]byte), headercb func(http.Header)) string {
+	upgrader := websocket.Upgrader{}
+
+	http.HandleFunc("/test", func(w http.ResponseWriter, r *http.Request) {
+		headercb(r.Header)
+		c, err := upgrader.Upgrade(w, r, nil)
+		if err != nil {
+			log.Print("upgrade:", err)
+			return
+		}
+
+		go func(conn *websocket.Conn) {
+			defer conn.Close()
+			for {
+				_, msg, _ := conn.ReadMessage()
+				cb(msg)
+			}
+		}(c)
+	})
+
+	go func() {
+		err := http.ListenAndServe("localhost:8081", nil)
+		if err != nil {
+			log.Fatal("Can't start:", err)
+		}
+	}()
+
+	return "ws://user1@localhost:8081/test"
+}

plugins.go

@@ -1,4 +1,4 @@
-package main
+package goreplay
 
 import (
 	"reflect"
@@ -106,7 +106,7 @@ func NewPlugins() *InOutPlugins {
 	}
 
 	for _, options := range Settings.InputRAW {
-		plugins.registerPlugin(NewRAWInput, options, Settings.RAWInputConfig)
+		plugins.registerPlugin(NewRAWInput, options, Settings.InputRAWConfig)
 	}
 
 	for _, options := range Settings.InputTCP {
@@ -117,6 +117,10 @@ func NewPlugins() *InOutPlugins {
 		plugins.registerPlugin(NewTCPOutput, options, &Settings.OutputTCPConfig)
 	}
 
+	for _, options := range Settings.OutputWebSocket {
+		plugins.registerPlugin(NewWebSocketOutput, options, &Settings.OutputWebSocketConfig)
+	}
+
 	for _, options := range Settings.InputFile {
 		plugins.registerPlugin(NewFileInput, options, Settings.InputFileLoop, Settings.InputFileReadDepth, Settings.InputFileMaxWait, Settings.InputFileDryRun)
 	}
@@ -155,7 +159,7 @@ func NewPlugins() *InOutPlugins {
 	}
 
 	if Settings.InputKafkaConfig.Host != "" && Settings.InputKafkaConfig.Topic != "" {
-		plugins.registerPlugin(NewKafkaInput, "", &Settings.InputKafkaConfig, &Settings.KafkaTLSConfig)
+		plugins.registerPlugin(NewKafkaInput, Settings.InputKafkaConfig.Offset, &Settings.InputKafkaConfig, &Settings.KafkaTLSConfig)
 	}
 
 	return plugins

plugins_test.go

@@ -1,14 +1,14 @@
-package main
+package goreplay
 
 import (
 	"testing"
 )
 
 func TestPluginsRegistration(t *testing.T) {
-	Settings.InputDummy = MultiOption{"[]"}
-	Settings.OutputDummy = MultiOption{"[]"}
-	Settings.OutputHTTP = MultiOption{"www.example.com|10"}
-	Settings.InputFile = MultiOption{"/dev/null"}
+	Settings.InputDummy = []string{"[]"}
+	Settings.OutputDummy = []string{"[]"}
+	Settings.OutputHTTP = []string{"www.example.com|10"}
+	Settings.InputFile = []string{"/dev/null"}
 
 	plugins := NewPlugins()
 

pro.go

@@ -1,5 +1,10 @@
-package main
+//go:build pro
+
+package goreplay
 
 // PRO this value indicates if goreplay is running in PRO mode..
 // it must not be modified explicitly in production
-var PRO = false
+var PRO = true
+
+// SettingsHook is intentionally left as a no-op
+var SettingsHook = func(*AppSettings) {}

proto/fuzz.go

@@ -1,4 +1,4 @@
-// +build gofuzz
+//go:build gofuzz
 
 package proto
 

proto/proto.go

@@ -19,12 +19,12 @@ package proto
 import (
 	"bufio"
 	"bytes"
+	"github.com/buger/goreplay/internal/byteutils"
+
 	_ "fmt"
 	"net/http"
 	"net/textproto"
 	"strings"
-
-	"github.com/buger/goreplay/byteutils"
 )
 
 // CRLF In HTTP newline defined by 2 bytes (for both windows and *nix support)
@@ -77,9 +77,12 @@ func header(payload []byte, name []byte) (value []byte, headerStart, headerEnd,
 		headerEnd += headerStart
 		colonIndex = bytes.IndexByte(payload[headerStart:headerEnd], ':')
 		if colonIndex == -1 {
-			break
+			// Malformed header, skip, most likely packet with partial headers
+			headerStart = headerEnd + 1
+			continue
 		}
 		colonIndex += headerStart
+
 		if bytes.EqualFold(payload[headerStart:colonIndex], name) {
 			valueStart = colonIndex + 1
 			valueEnd = headerEnd - 2
@@ -448,34 +451,45 @@ type ProtocolStateSetter interface {
 	ProtocolState() interface{}
 }
 
-type httpProto struct {
-	body         int // body index
-	headerStart  int
-	headerParsed bool // we checked necessary headers
-	hasFullBody  bool // all chunks has been parsed
-	isChunked    bool // Transfer-Encoding: chunked
-	bodyLen      int  // Content-Length's value
-	hasTrailer   bool // Trailer header?
+type HTTPState struct {
+	Body           int // body index
+	HeaderStart    int
+	HeaderEnd      int
+	HeaderParsed   bool // we checked necessary headers
+	HasFullPayload bool // all chunks has been parsed
+	IsChunked      bool // Transfer-Encoding: chunked
+	BodyLen        int  // Content-Length's value
+	HasTrailer     bool // Trailer header?
+	Continue100    bool
 }
 
 // HasFullPayload checks if this message has full or valid payloads and returns true.
 // Message param is optional but recommended on cases where 'data' is storing
 // partial-to-full stream of bytes(packets).
 func HasFullPayload(m ProtocolStateSetter, payloads ...[]byte) bool {
-	var state *httpProto
+	var state *HTTPState
 	if m != nil {
-		state, _ = m.ProtocolState().(*httpProto)
+		state, _ = m.ProtocolState().(*HTTPState)
 	}
 	if state == nil {
-		state = new(httpProto)
+		state = new(HTTPState)
 		if m != nil {
 			m.SetProtocolState(state)
 		}
 	}
-	if state.headerStart < 1 {
+
+	// Http Packets can only start with a few things, check if this is one of them
+	if len(payloads) == 0 {
+		return false
+	}
+	if !HasRequestTitle(payloads[0]) && !HasResponseTitle(payloads[0]) {
+		return false
+	}
+
+	if state.HeaderStart < 1 {
 		for _, data := range payloads {
-			state.headerStart = MIMEHeadersStartPos(data)
-			if state.headerStart < 0 {
+			state.HeaderStart = MIMEHeadersStartPos(data)
+			if state.HeaderStart < 0 {
 				return false
 			} else {
 				break
@@ -483,7 +497,7 @@ func HasFullPayload(m ProtocolStateSetter, payloads ...[]byte) bool {
 		}
 	}
 
-	if state.body < 1 {
+	if state.Body < 1 || state.HeaderEnd < 1 {
 		var pos int
 		for _, data := range payloads {
 			endPos := MIMEHeadersEndPos(data)
@@ -491,32 +505,42 @@ func HasFullPayload(m ProtocolStateSetter, payloads ...[]byte) bool {
 				pos += len(data)
 			} else {
 				pos += endPos
+				state.HeaderEnd = pos
 			}
 
 			if endPos > 0 {
-				state.body = pos
+				state.Body = pos
 				break
 			}
 		}
 	}
-	if !state.headerParsed {
+
+	if state.HeaderEnd < 1 {
+		return false
+	}
+
+	if !state.HeaderParsed {
 		var pos int
 		for _, data := range payloads {
 			chunked := Header(data, []byte("Transfer-Encoding"))
 
 			if len(chunked) > 0 && bytes.Index(data, []byte("chunked")) > 0 {
-				state.isChunked = true
+				state.IsChunked = true
 				// trailers are generally not allowed in non-chunks body
-				state.hasTrailer = len(Header(data, []byte("Trailer"))) > 0
+				state.HasTrailer = len(Header(data, []byte("Trailer"))) > 0
 			} else {
 				contentLen := Header(data, []byte("Content-Length"))
-				state.bodyLen, _ = atoI(contentLen, 10)
+				state.BodyLen, _ = atoI(contentLen, 10)
 			}
 
 			pos += len(data)
 
-			if state.bodyLen > 0 || pos >= state.body {
-				state.headerParsed = true
+			if string(Header(data, []byte("Expect"))) == "100-continue" {
+				state.Continue100 = true
+			}
+
+			if state.BodyLen > 0 || pos >= state.Body {
+				state.HeaderParsed = true
 				break
 			}
 		}
@@ -526,22 +550,22 @@ func HasFullPayload(m ProtocolStateSetter, payloads ...[]byte) bool {
 	for _, data := range payloads {
 		bodyLen += len(data)
 	}
-	bodyLen -= state.body
+	bodyLen -= state.Body
 
-	if state.isChunked {
+	if state.IsChunked {
 		// check chunks
 		if bodyLen < 1 {
 			return false
 		}
 
 		// check trailer headers
-		if state.hasTrailer {
+		if state.HasTrailer {
 			if bytes.HasSuffix(payloads[len(payloads)-1], []byte("\r\n\r\n")) {
 				return true
 			}
 		} else {
 			if bytes.HasSuffix(payloads[len(payloads)-1], []byte("0\r\n\r\n")) {
-				state.hasFullBody = true
+				state.HasFullPayload = true
 				return true
 			}
 		}
@@ -550,7 +574,7 @@ func HasFullPayload(m ProtocolStateSetter, payloads ...[]byte) bool {
 	}
 
 	// check for content-length header
-	return state.bodyLen == bodyLen
+	return state.BodyLen == bodyLen
 }
 
 // this works with positive integers

proto/proto_test.go

@@ -56,6 +56,12 @@ func TestHeader(t *testing.T) {
 	if val = Header(payload, []byte("host")); !bytes.Equal(val, []byte("www.w3.org")) {
 		t.Error("Should find lower case 1 word header")
 	}
+
+	payload = []byte("GT\r\nContent-Length: 10\r\n\r\n")
+
+	if val = Header(payload, []byte("Content-Length")); !bytes.Equal(val, []byte("10")) {
+		t.Error("Should find in partial payload")
+	}
 }
 
 func TestMIMEHeadersEndPos(t *testing.T) {
@@ -479,6 +485,14 @@ func TestHasFullPayload(t *testing.T) {
 	if got != expected {
 		t.Errorf("expected %v to equal %v", got, expected)
 	}
+
+	// check with trailer and no header
+	m = "Content-Type: text/plain\r\nContent-Length: 23\r\n\r\nMozillaDeveloperNetwork"
+	got = HasFullPayload(nil, []byte(m))
+	expected = false
+	if got != expected {
+		t.Errorf("expected %v to equal %v", got, expected)
+	}
 }
 
 func BenchmarkHasFullPayload(b *testing.B) {

protocol.go

@@ -1,4 +1,4 @@
-package main
+package goreplay
 
 import (
 	"bytes"

s3_reader.go

@@ -1,4 +1,4 @@
-package main
+package goreplay
 
 import (
 	"bytes"

s3_test.go

@@ -1,6 +1,6 @@
-// +build pro
+//go:build pro
 
-package main
+package goreplay
 
 import (
 	"fmt"