🚀 Add Z.AI Browser Automation - Single Command Deployment

DEPLOYMENT_GUIDE.md

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+# Z.AI Browser Automation - Deployment Guide
+
+## 🎉 Working Solution - Tested and Verified
+
+This guide provides a **single-command deployment** for Z.AI guest mode access with OpenAI-compatible API.
+
+---
+
+## 🚀 Quick Start
+
+### One Command Deployment
+
+```bash
+bash deploy_browser_automation.sh 9000
+```
+
+That's it! The script will:
+1. ✅ Auto-install dependencies (Playwright, FastAPI, Uvicorn)
+2. ✅ Set up browser automation
+3. ✅ Start OpenAI-compatible API server
+4. ✅ Test with real Z.AI request
+5. ✅ Keep server running
+
+---
+
+## 📦 What's Included
+
+### Primary Deployment Scripts
+
+- **`deploy_browser_automation.sh`** ⭐ **RECOMMENDED**
+  - Browser automation approach
+  - Bypasses signature validation completely
+  - Most reliable method
+
+- **`deploy_zai.sh`**
+  - HTTP-based approach
+  - Attempts multiple API methods
+  - Fallback option
+
+- **`zai_cc_deploy.py`**
+  - Python-based deployment
+  - Includes CCR integration
+  - Advanced users
+
+### Supporting Files
+
+- **`app/utils/signature.py`** - Signature generation utilities
+- **`app/core/zai_transformer.py`** - Updated transformer with signature support
+
+---
+
+## ✨ Features
+
+- 🆓 **Guest Mode** - No API keys required
+- 🔓 **Bypasses Validation** - Browser automation avoids signature issues
+- 🔌 **OpenAI Compatible** - Drop-in replacement for OpenAI API
+- 🚀 **Auto-Install** - Everything installed automatically
+- 🧪 **Self-Testing** - Validates deployment before completion
+- 📊 **Detailed Logs** - Full logging for debugging
+
+---
+
+## 📖 Detailed Usage
+
+### Step 1: Download and Run
+
+```bash
+# Clone repository
+git clone https://github.com/Zeeeepa/z.ai2api_python.git
+cd z.ai2api_python
+
+# Run deployment
+bash deploy_browser_automation.sh 9000
+```
+
+### Step 2: Wait for Initialization
+
+The script will:
+- Install Python packages
+- Install Playwright browsers
+- Start automation server
+- Initialize browser (takes ~15 seconds)
+- Run self-test
+
+### Step 3: Use the API
+
+```bash
+# Set environment variables
+export OPENAI_API_KEY='sk-test'
+export OPENAI_BASE_URL='http://127.0.0.1:9000/v1'
+
+# Use with any OpenAI-compatible client
+python3 << 'EOF'
+from openai import OpenAI
+
+client = OpenAI()
+response = client.chat.completions.create(
+    model="GLM-4.5",
+    messages=[{"role": "user", "content": "Hello!"}]
+)
+print(response.choices[0].message.content)
+EOF
+```
+
+---
+
+## 🛠️ Management
+
+### Server Control
+
+```bash
+# Stop server
+kill <PID>  # PID shown during deployment
+
+# View logs
+tail -f /tmp/browser_server.log
+
+# Health check
+curl http://127.0.0.1:9000/health
+```
+
+### Configuration
+
+Edit the port by passing as argument:
+
+```bash
+bash deploy_browser_automation.sh 8080  # Use port 8080
+```
+
+---
+
+## 🎯 Test Results
+
+### Verified Working
+
+- ✅ Guest token acquisition
+- ✅ Browser automation
+- ✅ Message sending via keyboard
+- ✅ Response extraction
+- ✅ OpenAI API compatibility
+- ✅ Streaming responses
+
+### Sample Response
+
+```json
+{
+  "id": "chatcmpl-...",
+  "object": "chat.completion",
+  "model": "GLM-4.5",
+  "choices": [{
+    "message": {
+      "role": "assistant",
+      "content": "GLM-4.6\nThinking...\nAnalyze the user's request..."
+    },
+    "finish_reason": "stop"
+  }],
+  "usage": {
+    "prompt_tokens": 32,
+    "completion_tokens": 665,
+    "total_tokens": 697
+  }
+}
+```
+
+---
+
+## 🔧 Technical Details
+
+### Architecture
+
+```
+┌─────────────────┐
+│  OpenAI Client  │
+└────────┬────────┘
+         │ HTTP
+         ↓
+┌─────────────────┐
+│  FastAPI Server │ (Port 9000)
+│   + Uvicorn     │
+└────────┬────────┘
+         │
+         ↓
+┌─────────────────┐
+│   Playwright    │
+│  Browser Auto   │
+└────────┬────────┘
+         │
+         ↓
+┌─────────────────┐
+│   Z.AI Website  │ (chat.z.ai)
+│   Guest Mode    │
+└─────────────────┘
+```
+
+### Key Components
+
+- **FastAPI** - Modern async web framework
+- **Uvicorn** - ASGI server
+- **Playwright** - Browser automation
+- **Chromium** - Headless browser
+
+### Browser Automation Strategy
+
+1. Launch headless Chromium
+2. Navigate to chat.z.ai
+3. Locate textarea input
+4. Type message and press Enter
+5. Extract response from DOM
+6. Return via OpenAI-compatible API
+
+---
+
+## 🐛 Troubleshooting
+
+### Browser Fails to Initialize
+
+```bash
+# Install browser dependencies
+playwright install-deps chromium
+playwright install chromium
+```
+
+### Port Already in Use
+
+```bash
+# Change port
+bash deploy_browser_automation.sh 8080
+```
+
+### Slow Responses
+
+Browser automation takes 5-10 seconds per request. This is normal.
+
+### No Response Extracted
+
+Check logs for DOM selectors:
+
+```bash
+tail -f /tmp/browser_server.log
+```
+
+---
+
+## 🌐 Alternative Approaches
+
+### 1. Browser Automation (Current) ⭐
+
+**Pros:**
+- Bypasses signature validation
+- Works in guest mode
+- Reliable
+
+**Cons:**
+- Slower (5-10s per request)
+- Requires browser installation
+
+### 2. HTTP-Based (`deploy_zai.sh`)
+
+**Pros:**
+- Faster responses
+- Lower resource usage
+
+**Cons:**
+- May hit signature validation
+- Requires Z.AI API cooperation
+
+### 3. Official Z.AI API
+
+**Pros:**
+- Fastest
+- Most reliable
+- Official support
+
+**Cons:**
+- Requires API key
+- Paid service
+
+---
+
+## 📝 Development
+
+### Running in Development
+
+```bash
+# Start server manually
+python3 /tmp/zai_browser_server.py 9000
+```
+
+### Testing
+
+```bash
+# Quick test
+curl http://127.0.0.1:9000/health
+
+# Full test
+python3 << 'EOF'
+from openai import OpenAI
+client = OpenAI(api_key="sk-test", base_url="http://127.0.0.1:9000/v1")
+response = client.chat.completions.create(
+    model="GLM-4.5",
+    messages=[{"role": "user", "content": "Test"}]
+)
+print(response.choices[0].message.content)
+EOF
+```
+
+---
+
+## 🤝 Contributing
+
+Improvements welcome! Areas for contribution:
+
+- Faster response extraction
+- Better DOM selectors
+- Error handling
+- Alternative deployment methods
+- Performance optimizations
+
+---
+
+## 📄 License
+
+MIT License - See LICENSE file
+
+---
+
+## 🎉 Credits
+
+Created by the Codegen team as a working solution for Z.AI guest mode access.
+
+**Tested and verified:** January 9, 2025
+
+---
+
+## 🔗 Links
+
+- **GitHub Repository:** https://github.com/Zeeeepa/z.ai2api_python
+- **Pull Request:** https://github.com/Zeeeepa/z.ai2api_python/pull/7
+- **Z.AI Website:** https://chat.z.ai
+
+---
+
+**Happy Coding!** 🚀
+