## Summary Stacked on #26707. Adds the Windows implementation of the shared system-proxy contract. This allows Codex-owned auth clients to use the route Windows selects for each auth URL, including explicit PAC configuration, WPAD auto-detection, static proxies, and bypass rules. The `respect_system_proxy` feature is disabled by default, so existing client behavior remains unchanged unless explicitly enabled. ## Implementation - Adds Windows-only `codex-client` dependencies: - `windows-sys` with `Win32_Foundation` and `Win32_Networking_WinHttp`; - `sha2` for redacted cache keys. - Dispatches system-proxy resolution to `outbound_proxy/windows.rs` on Windows. - Reads the current-user WinHTTP/IE proxy configuration via `WinHttpGetIEProxyConfigForCurrentUser`. - Resolves explicit PAC URLs first, then OS-enabled WPAD auto-detection, then static proxy and bypass settings. - Uses `WinHttpGetProxyForUrl` for PAC/WPAD and maps results into the shared `SystemProxyDecision::{Direct, Proxy, Unavailable}` contract. - Parses `DIRECT`, `PROXY`, `HTTPS`, and keyed static proxy entries. - Treats unsupported schemes such as SOCKS as unavailable so the shared resolver can apply its environment-proxy fallback. - Handles Windows bypass entries, including `<local>` and host, suffix, wildcard, and port matching. - Releases WinHTTP-owned strings with `GlobalFree` and closes sessions with `WinHttpCloseHandle`. - Hashes URL-specific cache keys with SHA-256 so PAC decisions remain URL-specific without retaining raw request URLs or query strings. ## End-user behavior - Disabled/default: existing client behavior is unchanged. - Enabled with `[features.respect_system_proxy]`: - Windows auth clients honor explicit PAC configuration, OS-enabled WPAD, static proxies, and bypass rules; - valid OS/PAC `DIRECT` decisions use a direct connection; - unavailable system resolution falls back to explicit environment proxy variables, then `DIRECT`, through the shared contract from #26707. - Unsupported proxy schemes are not silently translated into a different route. - Custom CA handling remains separate from proxy selection. ## Tests Adds coverage for: - PAC-style proxy tokens such as `PROXY proxy.internal:8080` and `HTTPS proxy.internal:8443`; - static WinHTTP proxy entries keyed by target scheme; - `DIRECT` and unsupported proxy-token behavior; - Windows bypass matching, including `<local>`, wildcard, suffix, and port-qualified entries; - preserving URL-specific PAC cache decisions without retaining the raw URL on Windows.
Codex CLI is a coding agent from OpenAI that runs locally on your computer.
If you want Codex in your code editor (VS Code, Cursor, Windsurf), install in your IDE.
If you want the desktop app experience, run
codex app or visit the Codex App page.
If you are looking for the cloud-based agent from OpenAI, Codex Web, go to chatgpt.com/codex.
Quickstart
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"
Codex CLI can also be installed via the following package managers:
# Install using npm
npm install -g @openai/codex
# Install using Homebrew
brew install --cask codex
Then simply run codex to get started.
You can also go to the latest GitHub Release and download the appropriate binary for your platform.
Each GitHub Release contains many executables, but in practice, you likely want one of these:
- macOS
- Apple Silicon/arm64:
codex-aarch64-apple-darwin.tar.gz - x86_64 (older Mac hardware):
codex-x86_64-apple-darwin.tar.gz
- Apple Silicon/arm64:
- Linux
- x86_64:
codex-x86_64-unknown-linux-musl.tar.gz - arm64:
codex-aarch64-unknown-linux-musl.tar.gz
- x86_64:
Each archive contains a single entry with the platform baked into the name (e.g., codex-x86_64-unknown-linux-musl), so you likely want to rename it to codex after extracting it.
Using Codex with your ChatGPT plan
Run codex and select Sign in with ChatGPT. We recommend signing into your ChatGPT account to use Codex as part of your Plus, Pro, Business, Edu, or Enterprise plan. Learn more about what's included in your ChatGPT plan.
You can also use Codex with an API key, but this requires additional setup.
Docs
This repository is licensed under the Apache-2.0 License.
