feat: Add Docker testing environment and fix build issues

Build fixes:
- Compile nghttp2 with -fPIC flag for shared library compatibility
- Add POSIX feature macros to browser_profiles.c
- Include strings.h for strcasecmp function
- Fix ja3_hash to use MD5 hash instead of full JA3 string (33 chars max)

Docker testing:
- Add Dockerfile.test that mimics GitHub Actions ubuntu-latest
- Add docker-compose.test.yml for easier Docker management
- Add Makefile targets: docker-build, docker-test, docker-shell
- Add .dockerignore to optimize build context

This allows local testing in the exact CI environment before pushing,
significantly reducing CI iteration time.

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <noreply@anthropic.com>

Author: arman-bd

.dockerignore

@@ -0,0 +1,60 @@
+# Python
+__pycache__/
+*.py[cod]
+*$py.class
+*.so
+.Python
+build/
+develop-eggs/
+dist/
+downloads/
+eggs/
+.eggs/
+lib/
+lib64/
+parts/
+sdist/
+var/
+wheels/
+*.egg-info/
+.installed.cfg
+*.egg
+
+# Virtual environments
+venv/
+ENV/
+env/
+.venv
+
+# IDE
+.vscode/
+.idea/
+*.swp
+*.swo
+*~
+
+# Testing
+.pytest_cache/
+.coverage
+htmlcov/
+.tox/
+
+# OS
+.DS_Store
+Thumbs.db
+
+# Git
+.git/
+.gitignore
+.gitattributes
+
+# CI
+.github/
+
+# Documentation
+docs/_build/
+*.md
+
+# Local development
+.uv/
+uv.lock

Dockerfile.test

@@ -0,0 +1,46 @@
+# Test Dockerfile for httpmorph CI environment
+# Mimics GitHub Actions ubuntu-latest environment
+
+FROM ubuntu:22.04
+
+# Prevent interactive prompts during package installation
+ENV DEBIAN_FRONTEND=noninteractive
+
+# Install system dependencies (matching CI workflow)
+RUN apt-get update && apt-get install -y \
+    cmake \
+    ninja-build \
+    libssl-dev \
+    pkg-config \
+    autoconf \
+    automake \
+    libtool \
+    git \
+    curl \
+    build-essential \
+    python3.11 \
+    python3.11-dev \
+    python3-pip \
+    && rm -rf /var/lib/apt/lists/*
+
+# Set Python 3.11 as default
+RUN update-alternatives --install /usr/bin/python3 python3 /usr/bin/python3.11 1
+RUN update-alternatives --install /usr/bin/python python /usr/bin/python3.11 1
+
+# Upgrade pip
+RUN python3 -m pip install --upgrade pip setuptools wheel
+
+# Set working directory
+WORKDIR /workspace
+
+# Copy project files
+COPY . .
+
+# Setup vendor dependencies
+RUN chmod +x scripts/setup_vendors.sh && ./scripts/setup_vendors.sh
+
+# Install Python package in development mode
+RUN pip install -e ".[dev]"
+
+# Default command: run tests
+CMD ["pytest", "tests/", "-v"]

Makefile

@@ -1,4 +1,4 @@
-.PHONY: help setup build install test clean benchmark docs lint format sync
+.PHONY: help setup build install test clean benchmark docs lint format sync docker-build docker-test docker-shell
 
 help:
 	@echo "httpmorph - Development commands"
@@ -15,6 +15,11 @@ help:
 	@echo "  make lint        - Run linters (ruff, mypy)"
 	@echo "  make format      - Format code (ruff)"
 	@echo ""
+	@echo "Docker (CI Testing):"
+	@echo "  make docker-build  - Build Docker test container (mimics CI)"
+	@echo "  make docker-test   - Run tests in Docker"
+	@echo "  make docker-shell  - Open shell in Docker for debugging"
+	@echo ""
 	@echo "Cleanup:"
 	@echo "  make clean       - Remove build artifacts"
 	@echo "  make clean-all   - Remove build artifacts and vendor dependencies"
@@ -81,3 +86,16 @@ rebuild: clean setup build
 # Check if everything is working
 check: lint test
 	@echo "All checks passed!"
+
+# Docker targets for CI testing
+docker-build:
+	@echo "Building Docker test container (mimics GitHub Actions)..."
+	docker build -f Dockerfile.test -t httpmorph-test .
+
+docker-test: docker-build
+	@echo "Running tests in Docker container..."
+	docker run --rm httpmorph-test pytest tests/ -v
+
+docker-shell:
+	@echo "Opening shell in Docker container for debugging..."
+	docker run --rm -it -v $(PWD):/workspace httpmorph-test bash

docker-compose.test.yml

@@ -0,0 +1,17 @@
+version: '3.8'
+
+services:
+  test:
+    build:
+      context: .
+      dockerfile: Dockerfile.test
+    volumes:
+      - .:/workspace
+      - vendor-cache:/workspace/vendor
+    environment:
+      - PYTHONDONTWRITEBYTECODE=1
+      - PYTHONUNBUFFERED=1
+    command: bash
+
+volumes:
+  vendor-cache:

scripts/setup_vendors.sh

@@ -125,7 +125,8 @@ cd nghttp2
 if [ ! -f "lib/.libs/libnghttp2.a" ]; then
     echo "Building nghttp2..."
 
-    ./configure --prefix="$VENDOR_DIR/nghttp2/install" \
+    # Build with -fPIC for use in shared libraries
+    CFLAGS="-fPIC" ./configure --prefix="$VENDOR_DIR/nghttp2/install" \
                 --enable-lib-only \
                 --enable-static \
                 --disable-shared \

src/tls/browser_profiles.c

@@ -2,9 +2,12 @@
  * browser_profiles.c - Browser TLS/HTTP fingerprint profiles implementation
  */
 
+#define _POSIX_C_SOURCE 200809L
+
 #include "browser_profiles.h"
 #include <stdlib.h>
 #include <string.h>
+#include <strings.h>  /* for strcasecmp */
 #include <time.h>
 
 /* Chrome 131 Profile */
@@ -86,7 +89,7 @@ const browser_profile_t PROFILE_CHROME_131 = {
         .window_update = 15663105,
     },
 
-    .ja3_hash = "771,4865-4866-4867-49195-49199-49196-49200-52393-52392-49171-49172-156-157-47-53,0-23-65281-10-11-35-16-5-13-18-51-45-43-27-17513,29-23-24,0",
+    .ja3_hash = "cd08e31494f9531f560d64c695473da9",  /* MD5 of JA3 string */
 };
 
 /* Chrome 124 Profile (older version) */