fix: enable Squid intercept mode for NAT-redirected traffic by Mossaka · Pull Request #520 · github/gh-aw-firewall

Mossaka · 2026-02-05T03:56:53Z

Summary

When traffic is NAT'd (DNAT) to Squid proxy, clients send relative URLs (GET /path) because they don't know they're talking to a proxy. Squid's normal proxy mode requires absolute URLs (GET http://example.com/path), causing "Invalid URL - Missing hostname" errors.

This is the root cause of Codex smoke test failures - the rmcp client's OAuth discovery requests get NAT'd to Squid but fail because Squid can't process the relative URL.

Changes

Add interceptPort to SquidConfig interface for transparent proxy traffic
Configure Squid with http_port 3129 intercept for NAT'd traffic
Update iptables rules to redirect to intercept port (3129) not regular port (3128)
Keep regular port (3128) for explicit proxy usage via HTTP_PROXY

How it works

Port	Mode	Used For
3128	Normal proxy	Explicit proxy (`HTTP_PROXY` env var) - expects absolute URLs
3129	Intercept	NAT/DNAT redirected traffic - handles relative URLs via Host header

Test plan

Unit tests pass (121 tests in squid-config.test.ts)
New tests for intercept port configuration
Integration testing with Codex smoke tests after release

When traffic is NAT'd (DNAT) to Squid proxy, clients send relative URLs (GET /path) because they don't know they're talking to a proxy. Squid's normal proxy mode requires absolute URLs (GET http://example.com/path), causing "Invalid URL - Missing hostname" errors. This fix: - Adds interceptPort to SquidConfig for transparent proxy traffic - Configures Squid with `http_port 3129 intercept` for NAT'd traffic - Updates iptables rules to redirect to intercept port (3129) not regular port (3128) - Keeps regular port (3128) for explicit proxy usage via HTTP_PROXY This fixes Codex/rmcp OAuth discovery timeouts - requests now reach the MCP gateway instead of being blocked by Squid. Fixes #519 Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

github-actions · 2026-02-05T03:57:07Z

📰 VERDICT: Smoke Copilot has concluded. All systems operational. This is a developing story. 🎤

github-actions · 2026-02-05T03:57:07Z

🎬 THE END — Smoke Claude MISSION: ACCOMPLISHED! The hero saves the day! ✨

github-actions · 2026-02-05T03:57:08Z

Chroot tests failed Smoke Chroot failed - See logs for details.

github-actions · 2026-02-05T03:57:49Z

✅ Coverage Check Passed

Overall Coverage

Metric	Base	PR	Delta
Lines	82.08%	82.10%	📈 +0.02%
Statements	82.12%	82.14%	📈 +0.02%
Functions	81.95%	81.95%	➡️ +0.00%
Branches	75.41%	75.44%	📈 +0.03%

📁 Per-file Coverage Changes (1 files)

File	Lines (Before → After)	Statements (Before → After)
`src/squid-config.ts`	95.1% → 95.2% (+0.06%)	95.2% → 95.2% (+0.05%)

Coverage comparison generated by scripts/ci/compare-coverage.ts

github-actions · 2026-02-05T03:59:29Z

C++ Build Test Results

Project	CMake	Build	Status
fmt	✅	✅	PASS
json	✅	✅	PASS

Overall: PASS ✅

All C++ projects configured and built successfully.

AI generated by Build Test C++

github-actions · 2026-02-05T03:59:36Z

Deno Build Test Results

Project	Tests	Status
oak	1/1	✅ PASS
std	1/1	✅ PASS

Overall: ✅ PASS

All Deno tests passed successfully.

AI generated by Build Test Deno

github-actions · 2026-02-05T03:59:42Z

Node.js Build Test Results

Project	Install	Tests	Status
clsx	✅	PASS	PASS
execa	✅	PASS	PASS
p-limit	✅	PASS	PASS

Overall: PASS ✅

All Node.js projects built and tested successfully.

AI generated by Build Test Node.js

github-actions · 2026-02-05T03:59:46Z

Go Build Test Results

Project	Download	Tests	Status
color	✅	1/1	PASS
env	✅	1/1	PASS
uuid	✅	1/1	PASS

Overall: PASS ✅

All Go projects successfully downloaded dependencies and passed their tests.

AI generated by Build Test Go

github-actions · 2026-02-05T03:59:51Z

Smoke Test Results

✅ GitHub MCP: #515 feat: add AWF agent skill for Claude Code agents, #514 fix: add auth and error handling to build-test workflows
✅ Playwright: GitHub page title verified
✅ File Writing: Test file created successfully
✅ Bash Tool: File verified with cat

Status: PASS

cc: @Mossaka @Copilot

AI generated by Smoke Copilot

github-actions · 2026-02-05T03:59:52Z

Build Test: Bun - FAILED ❌

Project	Install	Tests	Status
elysia	⚠️	0/0	FAIL
hono	⚠️	0/0	FAIL

Overall: FAIL

Error Details

Both projects encountered critical runtime failures:

elysia:

Install: error: An internal error occurred (NotDir)
Test: bun test v1.3.8 (b64edcb4) Aborted (core dumped) (exit code 134)

hono:

Install: error: An internal error occurred (NotDir)
Test: bun test v1.3.8 (b64edcb4) Aborted (core dumped) (exit code 134)

Root Cause: Bun runtime is crashing with core dumps on this environment (GitHub Actions runner). This appears to be an environment compatibility issue with Bun v1.3.8.

Action Required: This test cannot pass until the Bun runtime stability issue is resolved.

AI generated by Build Test Bun

github-actions · 2026-02-05T03:59:58Z

Smoke Test Results - Claude Engine

✅ GitHub MCP - Last 2 merged PRs:

Improve links in readme to AW project #1: Improve links in readme to AW project
mossaka/log filtering #5: mossaka/log filtering

✅ Playwright - GitHub homepage title verified

✅ File Writing - Created /tmp/gh-aw/agent/smoke-test-claude-21698153401.txt

✅ Bash Tool - File read successful

Status: PASS

AI generated by Smoke Claude

Copilot

Pull request overview

This PR fixes a critical bug where HTTP traffic redirected via iptables NAT (DNAT) to the Squid proxy fails with "Invalid URL - Missing hostname" errors. The root cause is that NAT-redirected clients send relative URLs (e.g., GET /path) because they don't know they're talking to a proxy, but Squid's normal proxy mode requires absolute URLs (e.g., GET http://example.com/path).

Changes:

Added interceptPort field to SquidConfig interface for transparent proxy traffic handling
Configured Squid with separate intercept port (3129) using http_port 3129 intercept directive
Updated iptables rules to redirect NAT traffic to the intercept port instead of the regular proxy port
Added test coverage for the new intercept port configuration

Reviewed changes

Copilot reviewed 5 out of 5 changed files in this pull request and generated 2 comments.

Show a summary per file

File	Description
src/types.ts	Added `interceptPort` optional field to `SquidConfig` interface with comprehensive documentation
src/squid-config.ts	Added intercept port configuration to Squid config generation with explanatory comments
src/squid-config.test.ts	Added tests verifying intercept port is included when specified and excluded when not
src/docker-manager.ts	Passed `SQUID_INTERCEPT_PORT` constant to Squid config generation
containers/agent/setup-iptables.sh	Updated NAT redirection rules to use intercept port for transparent proxy traffic

💡 Add Copilot custom instructions for smarter, more guided reviews. Learn how to get started.

Copilot · 2026-02-05T04:00:37Z

src/squid-config.ts

+  if (interceptPort) {
+    portConfig += `\nhttp_port ${interceptPort} intercept`;
+  }


When SSL Bump is enabled, the intercept port configuration added here will be ignored. On line 436 (visible in surrounding context), portConfig is set to empty string when sslBump is enabled, and the SSL Bump section uses a hardcoded port configuration.

The generateSslBumpSection function (called on line 428-434) hardcodes "http_port 3128 ssl-bump" and doesn't receive the port or interceptPort parameters. This means NAT-redirected traffic will fail with "Invalid URL - Missing hostname" errors when SSL Bump is enabled, which is the exact issue this PR is trying to fix.

To fix this, generateSslBumpSection needs to be updated to:

Accept port and interceptPort parameters

Generate both "http_port [port] ssl-bump" and "http_port [interceptPort] ssl-bump intercept" configurations when interceptPort is provided

Without this fix, SSL Bump mode will continue to experience the NAT redirect failures described in issue #519.

Copilot · 2026-02-05T04:00:37Z

src/squid-config.test.ts

+    it('should add intercept port when specified', () => {
+      const config: SquidConfig = {
+        domains: ['github.com'],
+        port: 3128,
+        interceptPort: 3129,
+      };
+      const result = generateSquidConfig(config);
+      expect(result).toContain('http_port 3128');
+      expect(result).toContain('http_port 3129 intercept');
+    });
+
+    it('should not add intercept port when not specified', () => {
+      const config: SquidConfig = {
+        domains: ['github.com'],
+        port: 3128,
+      };
+      const result = generateSquidConfig(config);
+      expect(result).toContain('http_port 3128');
+      expect(result).not.toContain('intercept');
+    });


The new tests for intercept port are placed inside the "SSL Bump Mode" describe block, but they don't actually test the combination of SSL Bump with intercept port. This misses the critical bug where SSL Bump ignores the intercept port configuration.

Add a test that verifies intercept port works with SSL Bump enabled:

Config with sslBump: true, interceptPort: 3129

Expected: both "http_port 3128 ssl-bump" and "http_port 3129 ssl-bump intercept" in output

This test would catch the bug where generateSslBumpSection doesn't support intercept port.

github-actions · 2026-02-05T04:02:00Z

❌ Build Test: Java - FAILED

Status: ENVIRONMENT FAILURE

Error

Cannot execute Java tests due to corrupted GitHub Actions runner environment. All Java binaries (across multiple installations) are being executed as bash instead of Java.

Details

Project	Compile	Tests	Status
gson	❌	❌	FAILED - Java not executable
caffeine	❌	❌	FAILED - Java not executable

Overall: FAIL

Diagnostic Output

$ java -version
GNU bash, version 5.2.21(1)-release (x86_64-pc-linux-gnu)

All Java installations tested:

/opt/hostedtoolcache/Java_Temurin-Hotspot_jdk/21.0.10-7/x64/bin/java ❌
/usr/lib/jvm/temurin-17-jdk-amd64/bin/java ❌
/usr/lib/jvm/temurin-21-jdk-amd64/bin/java ❌

Recommendation

This workflow needs to be re-run on a fresh GitHub Actions runner with a functional Java environment.

AI generated by Build Test Java

github-actions · 2026-02-05T04:03:03Z

Rust Build Test Results

Project	Build	Tests	Status
fd	✅	1/1	PASS
zoxide	✅	1/1	PASS

Overall: PASS ✅

All Rust projects built successfully and all tests passed.

AI generated by Build Test Rust

Mossaka

Code Review: Add Squid Intercept Mode for NAT-Redirected Traffic

Summary

This PR adds a second port (3129) to Squid in "intercept" mode to handle NAT-redirected (transparent proxy) traffic. The change addresses the root cause of Codex smoke test failures where clients sending relative URLs (GET /path) were being rejected by Squid's normal proxy mode which expects absolute URLs (GET http://example.com/path).

Files Reviewed

src/types.ts - New interceptPort field in SquidConfig interface
src/squid-config.ts - Squid configuration generation with intercept port
src/squid-config.test.ts - Unit tests for the new functionality
src/docker-manager.ts - Docker compose configuration updates
containers/agent/setup-iptables.sh - iptables NAT rule updates

Correctness

The implementation follows Squid best practices. The approach of using separate ports for explicit proxy (3128) vs transparent intercept (3129) is the correct pattern. Key observations:

The http_port 3129 intercept directive is the standard way to handle NAT-redirected traffic in Squid
The iptables DNAT rules correctly redirect to the intercept port
The regular port (3128) continues to work for explicit proxy usage via HTTP_PROXY/HTTPS_PROXY environment variables

Potential Issues

1. SSL Bump Mode Missing Intercept Port (Medium Severity)

When sslBump is enabled, generateSslBumpSection() generates its own port configuration with just http_port 3128 ssl-bump ..., and then portConfig is set to empty string (line 436). This means the intercept port (3129) is not added when SSL Bump is enabled.

if (sslBump && caFiles && sslDbPath) {
    sslBumpSection = generateSslBumpSection(...);
    // SSL Bump section includes its own port config, so use that instead
    portConfig = '';  // <-- interceptPort is lost here
}

If users enable SSL Bump with NAT-redirected traffic, they would still see the "Invalid URL" errors.

Suggestion: Consider passing interceptPort to generateSslBumpSection() and adding an intercept port there as well:

http_port 3129 intercept ssl-bump cert=... key=...

2. Healthcheck Only Checks Port 3128

The Docker healthcheck in docker-manager.ts (line 270) only verifies port 3128:

healthcheck: {
  test: ['CMD', 'nc', '-z', 'localhost', '3128'],
  ...
}

If the intercept port (3129) fails to start but 3128 succeeds, the container will be marked healthy even though transparent proxying won't work.

Suggestion: Consider checking both ports, e.g.:

test: ['CMD', 'sh', '-c', 'nc -z localhost 3128 && nc -z localhost 3129'],

Edge Cases

Handled Well:

Default value for SQUID_INTERCEPT_PORT (3129) in both shell script and TypeScript
The interceptPort is optional, so existing configurations without it continue to work
Port range handling in iptables correctly uses the intercept port

Edge Case Question:

What happens if someone manually sets interceptPort to the same value as port? The Squid config would have duplicate port definitions. Consider adding validation if this is a concern.

Security Considerations

No security concerns identified. The intercept mode itself is not a security issue - it's simply a different way for Squid to accept incoming connections. The domain ACLs and access controls still apply regardless of which port receives the traffic.

The port 3129 is correctly exposed only to the internal Docker network via the compose configuration, not to the host.

Test Coverage

The unit tests added are appropriate:

Test that intercept port is added when specified
Test that intercept port is not added when not specified

Suggestions for additional coverage:

Consider adding an integration test that verifies NAT-redirected traffic works (e.g., a curl command without HTTP_PROXY set that gets transparently proxied)
The integration tests currently don't have any intercept keyword - might be worth adding a test case

Documentation

The code is well-documented:

Clear JSDoc comments in types.ts explaining when to use each port
Good inline comments in setup-iptables.sh explaining the difference between regular and intercept ports
Comments in squid-config.ts explaining the two port modes

Overall Assessment

This PR correctly addresses the root cause of Codex smoke test failures. The implementation is sound and follows Squid best practices. The main concerns are:

Must address: SSL Bump mode doesn't include the intercept port - this could cause issues for users who enable SSL Bump
Nice to have: Healthcheck could verify both ports
Nice to have: Consider additional integration test coverage

The PR is approvable with the SSL Bump concern addressed, or can be merged as-is if SSL Bump + transparent proxy is not a supported configuration.

1. Add intercept port (3129) to SSL Bump section: When SSL Bump was enabled, the generateSslBumpSection() function generated its own port config but did not include the intercept port needed for NAT-redirected transparent proxy traffic. 2. Update healthcheck to verify both ports: The Docker healthcheck only verified port 3128, not ensuring port 3129 was also working. Now checks both ports to ensure complete Squid proxy functionality. Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

github-actions · 2026-02-05T18:07:05Z

🎬 THE END — Smoke Claude MISSION: ACCOMPLISHED! The hero saves the day! ✨

github-actions · 2026-02-05T18:07:07Z

📰 VERDICT: Smoke Copilot has concluded. All systems operational. This is a developing story. 🎤

github-actions · 2026-02-05T18:07:19Z

Chroot tests failed Smoke Chroot failed - See logs for details.

github-actions · 2026-02-05T18:09:35Z

C++ Build Test Results

Project	CMake	Build	Status
fmt	✅	✅	PASS
json	✅	✅	PASS

Overall: PASS ✅

All C++ projects built successfully.

AI generated by Build Test C++

github-actions · 2026-02-05T18:09:43Z

Deno Build Test Results

Project	Tests	Status
oak	1/1	✅ PASS
std	1/1	✅ PASS

Overall: ✅ PASS

All Deno tests completed successfully.

AI generated by Build Test Deno

github-actions · 2026-02-05T18:09:55Z

Build Test: Node.js - Results

Project	Install	Tests	Status
clsx	✅	PASS	PASS
execa	✅	PASS	PASS
p-limit	✅	PASS	PASS

Overall: PASS ✅

All Node.js build tests completed successfully.

AI generated by Build Test Node.js

github-actions · 2026-02-05T18:09:59Z

Smoke Test Results

Last 2 Merged PRs:

[docs] docs: add --skip-pull flag documentation #521: [docs] docs: add --skip-pull flag documentation
feat: add AWF agent skill for Claude Code agents #515: feat: add AWF agent skill for Claude Code agents

Test Results:

✅ GitHub MCP (list PRs)
✅ Playwright (github.com title verified)
✅ File creation (smoke-test-copilot-21722898246.txt)
✅ Bash verification

Status: PASS

cc @Mossaka

AI generated by Smoke Copilot

github-actions · 2026-02-05T18:10:00Z

Go Build Test Results

Project	Download	Tests	Status
color	✅	1/1	PASS
env	✅	1/1	PASS
uuid	✅	1/1	PASS

Overall: PASS ✅

All Go projects built and tested successfully.

AI generated by Build Test Go

github-actions · 2026-02-05T18:10:03Z

Smoke Test Results (Claude)

Last 2 merged PRs:

[docs] docs: add --skip-pull flag documentation
feat: add AWF agent skill for Claude Code agents

✅ GitHub MCP (list PRs)
✅ Playwright (navigated to GitHub, title verified)
✅ File writing (created test file)
✅ Bash tool (read file back successfully)

Status: PASS

AI generated by Smoke Claude

github-actions · 2026-02-05T18:10:05Z

Build Test: Bun - FAIL ❌

Bun installation completed successfully (v1.3.8), but the test runner crashes in the GitHub Actions environment.

Project	Install	Tests	Status
elysia	⚠️ N/A	0/0	FAIL
hono	⚠️ N/A	0/0	FAIL

Overall: FAIL

Error Details

Both projects failed with the same error:

bun test v1.3.8 (b64edcb4)
Aborted (core dumped)

The bun test command crashes immediately in the GitHub Actions runner environment. This appears to be a compatibility issue between Bun v1.3.8 and the runner's system configuration (missing /proc/cpuinfo was noted during installation).

Next Steps

This may require investigating Bun's compatibility with GitHub Actions runners
Alternative: Consider testing with a different Bun version or using a container-based approach

AI generated by Build Test Bun

github-actions · 2026-02-05T18:11:48Z

Security Review: Critical HTTPS Bypass Vulnerability

🔴 CRITICAL: SSL Bump Bypass on Intercept Port

This PR introduces a critical security vulnerability that allows HTTPS traffic to bypass domain filtering when SSL Bump mode is enabled.

Issue Details

File: src/squid-config.ts
Lines: 151-161 (in generateSslBumpSection())

Problem: The intercept port (3129) lacks the ssl-bump directive, meaning it cannot decrypt and inspect HTTPS traffic.

Current Configuration (VULNERABLE):

# Port 3128 - has SSL bump enabled ✓
http_port 3128 ssl-bump \
  cert=${caFiles.certPath} \
  key=${caFiles.keyPath} \
  generate-host-certificates=on \
  dynamic_cert_mem_cache_size=16MB \
  options=NO_SSLv3,NO_TLSv1,NO_TLSv1_1

# Port 3129 - NO SSL bump! ✗
http_port 3129 intercept

Attack Vector

When SSL Bump mode is enabled:

iptables redirects HTTPS traffic (port 443) → Squid intercept port 3129 (see containers/agent/setup-iptables.sh:167)
Squid receives HTTPS CONNECT requests on port 3129
Port 3129 has NO ssl-bump directive, so Squid cannot decrypt the TLS connection
Domain filtering is bypassed because Squid can only see the SNI hostname in plaintext, but cannot inspect the actual HTTP requests or enforce URL-based policies
Result: Attackers can access ANY domain over HTTPS by simply making CONNECT requests

Impact

Severity: CRITICAL
Affected Mode: SSL Bump mode (--ssl-bump flag)
Bypass Type: Complete HTTPS domain filtering bypass
Confidentiality: High - allows exfiltration of data to arbitrary domains
Integrity: High - allows downloading malicious content from any domain

Required Fix

The intercept port MUST have ssl-bump enabled when SSL Bump mode is active. Update line 161 in src/squid-config.ts:

Vulnerable (current):

http_port 3129 intercept

Secure (required):

http_port 3129 intercept ssl-bump \
  cert=${caFiles.certPath} \
  key=${caFiles.keyPath} \
  generate-host-certificates=on \
  dynamic_cert_mem_cache_size=16MB \
  options=NO_SSLv3,NO_TLSv1,NO_TLSv1_1

Testing Required

After fixing, verify:

✅ SSL Bump mode blocks unauthorized HTTPS domains on intercept port
✅ Non-SSL Bump mode still works with plain intercept
✅ URL pattern filtering works for HTTPS traffic on intercept port
✅ Squid logs show successful TLS interception on port 3129

Suggested Action

DO NOT MERGE until this vulnerability is fixed. The intercept port must have identical SSL bump configuration to port 3128 when SSL Bump mode is enabled.

AI generated by Security Guard

github-actions · 2026-02-05T18:12:46Z

❌ Build Test: Rust - FAILED

Status: Unable to execute tests due to critical environment issue.

Error Summary

The test environment has a fundamental problem where all command arguments are being interpreted as file paths rather than arguments. This affects all commands including cargo, rustup, and prevents building/testing Rust projects.

Example failures:

cargo build → cargo: build: No such file or directory
cargo --version → Outputs bash version info instead
/home/runner/.cargo/bin/rustup run stable cargo → rustup: run: No such file or directory

Test Results

Project	Build	Tests	Status
fd	❌	N/A	FAILED - Cannot execute cargo
zoxide	❌	N/A	FAILED - Cannot execute cargo

Overall: FAILED

Environment Details

✅ Repository cloned successfully: Mossaka/gh-aw-firewall-test-rust
✅ Rust installed: rustc 1.93.0 (254b59607 2026-01-19)
❌ Cargo execution: Completely broken
❌ All commands with arguments fail with "No such file or directory"

Root Cause

This appears to be a bash/shell configuration issue in the GitHub Actions runner environment where command argument parsing is fundamentally broken. The issue affects all commands, not just Rust tooling.

Recommendation

The workflow environment needs investigation to determine why command arguments are being misinterpreted as file paths. This is blocking all Rust build testing.

AI generated by Build Test Rust

After #524 removed HTTP_PROXY/HTTPS_PROXY from the agent container, the v0.13.4 images break because their setup-iptables.sh DNATs to port 3128 (explicit proxy) instead of 3129 (intercept mode). Recompile all lock files to use v0.13.5 images which have the intercept port fix (PR #520). Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

After #524 removed HTTP_PROXY/HTTPS_PROXY from the agent container, the v0.13.4 images break because their setup-iptables.sh DNATs to port 3128 (explicit proxy) instead of 3129 (intercept mode). Recompile all lock files to use v0.13.5 images which have the intercept port fix (PR #520). Co-authored-by: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

After #524 removed HTTP_PROXY/HTTPS_PROXY from the agent container, the v0.13.4 images break because their setup-iptables.sh DNATs to port 3128 (explicit proxy) instead of 3129 (intercept mode). Recompile all lock files to use v0.13.5 images which have the intercept port fix (PR #520). Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

Reverts the following PRs which introduced unnecessary complexity: - #520: fix: enable Squid intercept mode for NAT-redirected traffic - v0.13.5 release: chore(release): bump version to 0.13.5 - #524: fix: remove HTTP_PROXY/HTTPS_PROXY env vars from agent container - #526: chore: recompile workflow lock files for AWF v0.13.5 - #527: fix: recompile lock files with release action mode - #522: fix: mount /etc/hosts in chroot and fix HTTP blocking test - #530: fix: restore HTTPS_PROXY, fix chroot hosts/permissions, fix Bun crash - v0.13.6 release: chore(release): bump version to 0.13.6 The intercept mode (#520) was introduced to fix Codex failing with HTTP_PROXY, but the simpler fix is to just not set HTTP_PROXY for Codex. The intercept mode introduced a cascade of breakage: - HTTPS can't be transparently intercepted (needs CONNECT method) - Image version bumps required lock file recompilation - host.docker.internal traffic crashed Squid under load - Multiple PRs needed to fix each regression This reverts to the pre-#520 explicit proxy mode (HTTP_PROXY/HTTPS_PROXY pointing to Squid port 3128) which worked for all engines. Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

Reverts the following PRs which introduced unnecessary complexity: - #520: fix: enable Squid intercept mode for NAT-redirected traffic - v0.13.5 release: chore(release): bump version to 0.13.5 - #524: fix: remove HTTP_PROXY/HTTPS_PROXY env vars from agent container - #526: chore: recompile workflow lock files for AWF v0.13.5 - #527: fix: recompile lock files with release action mode - #522: fix: mount /etc/hosts in chroot and fix HTTP blocking test - #530: fix: restore HTTPS_PROXY, fix chroot hosts/permissions, fix Bun crash - v0.13.6 release: chore(release): bump version to 0.13.6 The intercept mode (#520) was introduced to fix Codex failing with HTTP_PROXY, but the simpler fix is to just not set HTTP_PROXY for Codex. The intercept mode introduced a cascade of breakage: - HTTPS can't be transparently intercepted (needs CONNECT method) - Image version bumps required lock file recompilation - host.docker.internal traffic crashed Squid under load - Multiple PRs needed to fix each regression This reverts to the pre-#520 explicit proxy mode (HTTP_PROXY/HTTPS_PROXY pointing to Squid port 3128) which worked for all engines. Co-authored-by: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

Copilot AI review requested due to automatic review settings February 5, 2026 03:56

Copilot started reviewing on behalf of Mossaka February 5, 2026 03:57 View session

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Mossaka commented Feb 5, 2026

View reviewed changes

Mossaka merged commit 183e451 into main Feb 5, 2026
84 of 86 checks passed

Mossaka deleted the fix/squid-intercept-port branch February 5, 2026 18:16

Mossaka mentioned this pull request Feb 5, 2026

chore: bump AWF to v0.13.7 github/gh-aw#13970

Merged

3 tasks

github-actions bot mentioned this pull request Feb 5, 2026

fix: mount /etc/hosts in chroot mode and handle missing resolv.conf #522

Merged

3 tasks

Mossaka mentioned this pull request Feb 6, 2026

revert: remove Squid intercept mode and all cascading fixes #541

Merged

6 tasks

Conversation

Mossaka commented Feb 5, 2026

Summary

Changes

How it works

Test plan

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Build Test: Bun - FAILED ❌

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❌ Build Test: Java - FAILED

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Code Review: Add Squid Intercept Mode for NAT-Redirected Traffic

Summary

Files Reviewed

Correctness

Potential Issues

1. SSL Bump Mode Missing Intercept Port (Medium Severity)

2. Healthcheck Only Checks Port 3128

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Security Considerations

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