jfoo-oai 12cca49c81 Reject duplicate Host headers in the network proxy (#53506)
## Why

Policy evaluation and upstream parsers must not select different `Host` field lines from the same request.

## What changed

Return `400 Bad Request` for multiple `Host` headers, including identical values, before policy evaluation, upstream forwarding, or Unix socket routing. Apply the check to both plain HTTP requests and `CONNECT` requests.

## Testing

Add regression tests covering identical and conflicting headers in origin-form, absolute-form, and `CONNECT` requests, verifying rejection without an upstream connection. Also cover single-header forwarding and rejection before Unix socket routing.

GitOrigin-RevId: 8ec95171e120f784629d3121b9a1bedbaf88e7cd
2026-10-12 23:46:16 +00:00
2026-04-24 17:49:29 -07:00
2025-04-16 12:56:08 -04:00
2025-04-16 12:56:08 -04:00
2026-04-24 17:49:29 -07:00
2026-08-21 16:45:05 +00:00

Codex CLI is a coding agent from OpenAI that runs locally on your computer.

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If you want Codex in your code editor (VS Code, Cursor, Windsurf), install in your IDE.
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Installing and running Codex CLI

Run the following on Mac or Linux to install Codex CLI:

curl -fsSL https://chatgpt.com/codex/install.sh | sh

Run the following on Windows to install Codex CLI:

powershell -ExecutionPolicy ByPass -c "irm https://chatgpt.com/codex/install.ps1 | iex"

The standalone installers download from https://releases.openai.com/codex by default and fall back to GitHub Releases if a metadata or asset download is unavailable. To force GitHub Releases, set CODEX_INSTALLER_USE_RELEASES_OPENAI_COM to false (0 and no are also accepted):

curl -fsSL https://chatgpt.com/codex/install.sh | CODEX_INSTALLER_USE_RELEASES_OPENAI_COM=false sh
$env:CODEX_INSTALLER_USE_RELEASES_OPENAI_COM='false'; irm https://chatgpt.com/codex/install.ps1 | iex

Codex CLI can also be installed via the following package managers:

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# Install using Homebrew
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This repository is licensed under the Apache-2.0 License.

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