Initial commit: OpenAI Codex reverse proxy with Node.js + Express

2026-02-17 08:50:58 +08:00
commit 5e3cbb0eca
10 changed files with 1993 additions and 0 deletions
--- a/.env.exa
+++ b/.env.exa
@@ -0,0 +1,8 @@
+# 服务器端口
+PORT=3000
+
+# Token 文件路径
+TOKEN_FILE=./token.json
+
+# 模型列表文件路径
+MODELS_FILE=./models.json
--- a/.gitignore
+++ b/.gitignore
@@ -0,0 +1,5 @@
+node_modules/
+.env
+token.json
+*.log
+.DS_Store
--- a/README.md
+++ b/README.md
@@ -0,0 +1,284 @@
+# GPT2API Node
+
+基于 Node.js + Express 的 OpenAI Codex 反向代理服务，支持 JSON 文件导入 token，自动刷新 token，提供 OpenAI 兼容的 API 接口。
+
+## 功能特性
+
+- ✅ OpenAI Codex 反向代理
+- ✅ 自动 Token 刷新机制
+- ✅ 支持流式和非流式响应
+- ✅ OpenAI API 兼容接口
+- ✅ JSON 文件导入 Token
+- ✅ 简单易用的配置
+
+## 快速开始
+
+### 1. 安装依赖
+
+```bash
+cd gpt2api-node
+npm install
+```
+
+### 2. 配置 Token
+
+从 CLIProxyAPI 或其他来源获取 token 文件，复制到项目根目录并命名为 `token.json`：
+
+```json
+{
+  "id_token": "your_id_token_here",
+  "access_token": "your_access_token_here",
+  "refresh_token": "your_refresh_token_here",
+  "account_id": "your_account_id",
+  "email": "your_email@example.com",
+  "type": "codex",
+  "expired": "2026-12-31T23:59:59.000Z",
+  "last_refresh": "2026-01-01T00:00:00.000Z"
+}
+```
+
+### 3. 配置环境变量（可选）
+
+复制 `.env.example` 为 `.env` 并修改配置：
+
+```bash
+cp .env.example .env
+```
+
+```env
+PORT=3000
+TOKEN_FILE=./token.json
+```
+
+### 4. 启动服务
+
+```bash
+npm start
+```
+
+开发模式（自动重启）：
+
+```bash
+npm run dev
+```
+
+## API 接口
+
+### 聊天完成接口
+
+**端点**: `POST /v1/chat/completions`
+
+**请求示例**:
+
+```bash
+curl http://localhost:3000/v1/chat/completions \
+  -H "Content-Type: application/json" \
+  -d '{
+    "model": "gpt-5.3-codex",
+    "messages": [
+      {"role": "user", "content": "Hello!"}
+    ],
+    "stream": false
+  }'
+```
+
+**流式请求**:
+
+```bash
+curl http://localhost:3000/v1/chat/completions \
+  -H "Content-Type: application/json" \
+  -d '{
+    "model": "gpt-5.3-codex",
+    "messages": [
+      {"role": "user", "content": "Hello!"}
+    ],
+    "stream": true
+  }'
+```
+
+### 模型列表
+
+**端点**: `GET /v1/models`
+
+```bash
+curl http://localhost:3000/v1/models
+```
+
+### 健康检查
+
+**端点**: `GET /health`
+
+```bash
+curl http://localhost:3000/health
+```
+
+## 支持的模型
+
+- `gpt-5.3-codex` - GPT 5.3 Codex（最新）
+- `gpt-5.3-codex-spark` - GPT 5.3 Codex Spark（超快速编码模型）
+- `gpt-5.2` - GPT 5.2
+- `gpt-5.2-codex` - GPT 5.2 Codex
+- `gpt-5.1` - GPT 5.1
+- `gpt-5.1-codex` - GPT 5.1 Codex
+- `gpt-5.1-codex-mini` - GPT 5.1 Codex Mini（更快更便宜）
+- `gpt-5.1-codex-max` - GPT 5.1 Codex Max
+- `gpt-5` - GPT 5
+- `gpt-5-codex` - GPT 5 Codex
+- `gpt-5-codex-mini` - GPT 5 Codex Mini
+
+## 在 Cherry Studio 中使用
+
+Cherry Studio 是一个支持多种 AI 服务的桌面客户端。配置步骤：
+
+### 1. 启动代理服务
+
+```bash
+cd gpt2api-node
+npm start
+```
+
+### 2. 在 Cherry Studio 中配置
+
+1. 打开 Cherry Studio
+2. 进入 **设置** → **模型提供商**
+3. 添加新的 **OpenAI 兼容** 提供商
+4. 填写配置：
+   - **名称**: GPT2API Node（或自定义名称）
+   - **API 地址**: `http://localhost:3000/v1`
+   - **API Key**: 随意填写（如 `dummy`），不会被验证
+   - **模型**: 选择或手动输入模型名称（如 `gpt-5.3-codex`）
+
+### 3. 开始使用
+
+配置完成后，在 Cherry Studio 中选择刚才添加的提供商和模型，即可开始对话。
+
+### 可用模型列表
+
+在 Cherry Studio 中可以使用以下任意模型：
+- `gpt-5.3-codex` - 推荐，最新版本
+- `gpt-5.3-codex-spark` - 超快速编码
+- `gpt-5.2-codex` - 稳定版本
+- `gpt-5.1-codex` - 较旧版本
+- 其他 GPT-5 系列模型
+
+## 使用示例
+
+### Python
+
+```python
+import openai
+
+client = openai.OpenAI(
+    base_url="http://localhost:3000/v1",
+    api_key="dummy"  # 不需要真实的 API key
+)
+
+response = client.chat.completions.create(
+    model="gpt-5.3-codex",
+    messages=[
+        {"role": "user", "content": "Hello!"}
+    ]
+)
+
+print(response.choices[0].message.content)
+```
+
+### JavaScript/Node.js
+
+```javascript
+import OpenAI from 'openai';
+
+const client = new OpenAI({
+  baseURL: 'http://localhost:3000/v1',
+  apiKey: 'dummy'
+});
+
+const response = await client.chat.completions.create({
+  model: 'gpt-5.3-codex',
+  messages: [
+    { role: 'user', content: 'Hello!' }
+  ]
+});
+
+console.log(response.choices[0].message.content);
+```
+
+### cURL
+
+```bash
+curl http://localhost:3000/v1/chat/completions \
+  -H "Content-Type: application/json" \
+  -d '{
+    "model": "gpt-5.3-codex",
+    "messages": [
+      {"role": "system", "content": "You are a helpful assistant."},
+      {"role": "user", "content": "What is the capital of France?"}
+    ]
+  }'
+```
+
+## Token 管理
+
+### 自动刷新
+
+服务会自动检测 token 是否过期（提前 5 分钟），并在需要时自动刷新。刷新后的 token 会自动保存到文件中。
+
+### 手动导入
+
+如果你有从 CLIProxyAPI 导出的 token 文件，直接复制为 `token.json` 即可使用。
+
+### Token 文件格式
+
+Token 文件必须包含以下字段：
+
+- `access_token`: 访问令牌
+- `refresh_token`: 刷新令牌
+- `id_token`: ID 令牌（可选）
+- `account_id`: 账户 ID（可选）
+- `email`: 邮箱（可选）
+- `expired`: 过期时间（ISO 8601 格式）
+- `type`: 类型（固定为 "codex"）
+
+## 项目结构
+
+```
+gpt2api-node/
+├── src/
+│   ├── index.js           # 主服务器文件
+│   ├── tokenManager.js    # Token 管理模块
+│   └── proxyHandler.js    # 代理处理模块
+├── package.json
+├── .env.example
+├── token.example.json
+├── .gitignore
+└── README.md
+```
+
+## 注意事项
+
+1. **Token 安全**: 请妥善保管 `token.json` 文件，不要提交到版本控制系统
+2. **网络要求**: 需要能够访问 `chatgpt.com` 和 `auth.openai.com`
+3. **Token 有效期**: Token 会自动刷新，但如果 refresh_token 失效，需要重新获取
+4. **并发限制**: 根据 OpenAI 账户限制，注意控制并发请求数量
+
+## 故障排除
+
+### Token 加载失败
+
+确保 `token.json` 文件存在且格式正确，参考 `token.example.json`。
+
+### Token 刷新失败
+
+可能是 refresh_token 已过期，需要重新从 CLIProxyAPI 获取新的 token。
+
+### 代理请求失败
+
+检查网络连接，确保能够访问 OpenAI 服务。
+
+## 许可证
+
+MIT License
+
+## 相关项目
+
+- [CLIProxyAPI](https://github.com/router-for-me/CLIProxyAPI) - 原始 Go 语言实现
--- a/models.json
+++ b/models.json
@@ -0,0 +1,68 @@
+[
+  {
+    "id": "gpt-5.3-codex",
+    "object": "model",
+    "created": 1770307200,
+    "owned_by": "openai"
+  },
+  {
+    "id": "gpt-5.3-codex-spark",
+    "object": "model",
+    "created": 1770912000,
+    "owned_by": "openai"
+  },
+  {
+    "id": "gpt-5.2",
+    "object": "model",
+    "created": 1765440000,
+    "owned_by": "openai"
+  },
+  {
+    "id": "gpt-5.2-codex",
+    "object": "model",
+    "created": 1765440000,
+    "owned_by": "openai"
+  },
+  {
+    "id": "gpt-5.1",
+    "object": "model",
+    "created": 1762905600,
+    "owned_by": "openai"
+  },
+  {
+    "id": "gpt-5.1-codex",
+    "object": "model",
+    "created": 1762905600,
+    "owned_by": "openai"
+  },
+  {
+    "id": "gpt-5.1-codex-mini",
+    "object": "model",
+    "created": 1762905600,
+    "owned_by": "openai"
+  },
+  {
+    "id": "gpt-5.1-codex-max",
+    "object": "model",
+    "created": 1763424000,
+    "owned_by": "openai"
+  },
+  {
+    "id": "gpt-5",
+    "object": "model",
+    "created": 1754524800,
+    "owned_by": "openai"
+  },
+  {
+    "id": "gpt-5-codex",
+    "object": "model",
+    "created": 1757894400,
+    "owned_by": "openai"
+  },
+  {
+    "id": "gpt-5-codex-mini",
+    "object": "model",
+    "created": 1762473600,
+    "owned_by": "openai"
+  }
+]
--- a/package-lock.json
+++ b/package-lock.json
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+      }
+    },
+    "node_modules/on-finished": {
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+      },
+      "engines": {
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+    "node_modules/path-to-regexp": {
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+    },
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+      "license": "MIT"
+    },
+    "node_modules/qs": {
+      "version": "6.14.2",
+      "resolved": "https://registry.npmmirror.com/qs/-/qs-6.14.2.tgz",
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+      "license": "BSD-3-Clause",
+      "dependencies": {
+        "side-channel": "^1.1.0"
+      },
+      "engines": {
+        "node": ">=0.6"
+      },
+      "funding": {
+        "url": "https://github.com/sponsors/ljharb"
+      }
+    },
+    "node_modules/range-parser": {
+      "version": "1.2.1",
+      "resolved": "https://registry.npmmirror.com/range-parser/-/range-parser-1.2.1.tgz",
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+      "license": "MIT",
+      "engines": {
+        "node": ">= 0.6"
+      }
+    },
+    "node_modules/raw-body": {
+      "version": "2.5.3",
+      "resolved": "https://registry.npmmirror.com/raw-body/-/raw-body-2.5.3.tgz",
+      "integrity": "sha512-s4VSOf6yN0rvbRZGxs8Om5CWj6seneMwK3oDb4lWDH0UPhWcxwOWw5+qk24bxq87szX1ydrwylIOp2uG1ojUpA==",
+      "license": "MIT",
+      "dependencies": {
+        "bytes": "~3.1.2",
+        "http-errors": "~2.0.1",
+        "iconv-lite": "~0.4.24",
+        "unpipe": "~1.0.0"
+      },
+      "engines": {
+        "node": ">= 0.8"
+      }
+    },
+    "node_modules/safe-buffer": {
+      "version": "5.2.1",
+      "resolved": "https://registry.npmmirror.com/safe-buffer/-/safe-buffer-5.2.1.tgz",
+      "integrity": "sha512-rp3So07KcdmmKbGvgaNxQSJr7bGVSVk5S9Eq1F+ppbRo70+YeaDxkw5Dd8NPN+GD6bjnYm2VuPuCXmpuYvmCXQ==",
+      "funding": [
+        {
+          "type": "github",
+          "url": "https://github.com/sponsors/feross"
+        },
+        {
+          "type": "patreon",
+          "url": "https://www.patreon.com/feross"
+        },
+        {
+          "type": "consulting",
+          "url": "https://feross.org/support"
+        }
+      ],
+      "license": "MIT"
+    },
+    "node_modules/safer-buffer": {
+      "version": "2.1.2",
+      "resolved": "https://registry.npmmirror.com/safer-buffer/-/safer-buffer-2.1.2.tgz",
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+      "license": "MIT"
+    },
+    "node_modules/send": {
+      "version": "0.19.2",
+      "resolved": "https://registry.npmmirror.com/send/-/send-0.19.2.tgz",
+      "integrity": "sha512-VMbMxbDeehAxpOtWJXlcUS5E8iXh6QmN+BkRX1GARS3wRaXEEgzCcB10gTQazO42tpNIya8xIyNx8fll1OFPrg==",
+      "license": "MIT",
+      "dependencies": {
+        "debug": "2.6.9",
+        "depd": "2.0.0",
+        "destroy": "1.2.0",
+        "encodeurl": "~2.0.0",
+        "escape-html": "~1.0.3",
+        "etag": "~1.8.1",
+        "fresh": "~0.5.2",
+        "http-errors": "~2.0.1",
+        "mime": "1.6.0",
+        "ms": "2.1.3",
+        "on-finished": "~2.4.1",
+        "range-parser": "~1.2.1",
+        "statuses": "~2.0.2"
+      },
+      "engines": {
+        "node": ">= 0.8.0"
+      }
+    },
+    "node_modules/send/node_modules/ms": {
+      "version": "2.1.3",
+      "resolved": "https://registry.npmmirror.com/ms/-/ms-2.1.3.tgz",
+      "integrity": "sha512-6FlzubTLZG3J2a/NVCAleEhjzq5oxgHyaCU9yYXvcLsvoVaHJq/s5xXI6/XXP6tz7R9xAOtHnSO/tXtF3WRTlA==",
+      "license": "MIT"
+    },
+    "node_modules/serve-static": {
+      "version": "1.16.3",
+      "resolved": "https://registry.npmmirror.com/serve-static/-/serve-static-1.16.3.tgz",
+      "integrity": "sha512-x0RTqQel6g5SY7Lg6ZreMmsOzncHFU7nhnRWkKgWuMTu5NN0DR5oruckMqRvacAN9d5w6ARnRBXl9xhDCgfMeA==",
+      "license": "MIT",
+      "dependencies": {
+        "encodeurl": "~2.0.0",
+        "escape-html": "~1.0.3",
+        "parseurl": "~1.3.3",
+        "send": "~0.19.1"
+      },
+      "engines": {
+        "node": ">= 0.8.0"
+      }
+    },
+    "node_modules/setprototypeof": {
+      "version": "1.2.0",
+      "resolved": "https://registry.npmmirror.com/setprototypeof/-/setprototypeof-1.2.0.tgz",
+      "integrity": "sha512-E5LDX7Wrp85Kil5bhZv46j8jOeboKq5JMmYM3gVGdGH8xFpPWXUMsNrlODCrkoxMEeNi/XZIwuRvY4XNwYMJpw==",
+      "license": "ISC"
+    },
+    "node_modules/side-channel": {
+      "version": "1.1.0",
+      "resolved": "https://registry.npmmirror.com/side-channel/-/side-channel-1.1.0.tgz",
+      "integrity": "sha512-ZX99e6tRweoUXqR+VBrslhda51Nh5MTQwou5tnUDgbtyM0dBgmhEDtWGP/xbKn6hqfPRHujUNwz5fy/wbbhnpw==",
+      "license": "MIT",
+      "dependencies": {
+        "es-errors": "^1.3.0",
+        "object-inspect": "^1.13.3",
+        "side-channel-list": "^1.0.0",
+        "side-channel-map": "^1.0.1",
+        "side-channel-weakmap": "^1.0.2"
+      },
+      "engines": {
+        "node": ">= 0.4"
+      },
+      "funding": {
+        "url": "https://github.com/sponsors/ljharb"
+      }
+    },
+    "node_modules/side-channel-list": {
+      "version": "1.0.0",
+      "resolved": "https://registry.npmmirror.com/side-channel-list/-/side-channel-list-1.0.0.tgz",
+      "integrity": "sha512-FCLHtRD/gnpCiCHEiJLOwdmFP+wzCmDEkc9y7NsYxeF4u7Btsn1ZuwgwJGxImImHicJArLP4R0yX4c2KCrMrTA==",
+      "license": "MIT",
+      "dependencies": {
+        "es-errors": "^1.3.0",
+        "object-inspect": "^1.13.3"
+      },
+      "engines": {
+        "node": ">= 0.4"
+      },
+      "funding": {
+        "url": "https://github.com/sponsors/ljharb"
+      }
+    },
+    "node_modules/side-channel-map": {
+      "version": "1.0.1",
+      "resolved": "https://registry.npmmirror.com/side-channel-map/-/side-channel-map-1.0.1.tgz",
+      "integrity": "sha512-VCjCNfgMsby3tTdo02nbjtM/ewra6jPHmpThenkTYh8pG9ucZ/1P8So4u4FGBek/BjpOVsDCMoLA/iuBKIFXRA==",
+      "license": "MIT",
+      "dependencies": {
+        "call-bound": "^1.0.2",
+        "es-errors": "^1.3.0",
+        "get-intrinsic": "^1.2.5",
+        "object-inspect": "^1.13.3"
+      },
+      "engines": {
+        "node": ">= 0.4"
+      },
+      "funding": {
+        "url": "https://github.com/sponsors/ljharb"
+      }
+    },
+    "node_modules/side-channel-weakmap": {
+      "version": "1.0.2",
+      "resolved": "https://registry.npmmirror.com/side-channel-weakmap/-/side-channel-weakmap-1.0.2.tgz",
+      "integrity": "sha512-WPS/HvHQTYnHisLo9McqBHOJk2FkHO/tlpvldyrnem4aeQp4hai3gythswg6p01oSoTl58rcpiFAjF2br2Ak2A==",
+      "license": "MIT",
+      "dependencies": {
+        "call-bound": "^1.0.2",
+        "es-errors": "^1.3.0",
+        "get-intrinsic": "^1.2.5",
+        "object-inspect": "^1.13.3",
+        "side-channel-map": "^1.0.1"
+      },
+      "engines": {
+        "node": ">= 0.4"
+      },
+      "funding": {
+        "url": "https://github.com/sponsors/ljharb"
+      }
+    },
+    "node_modules/statuses": {
+      "version": "2.0.2",
+      "resolved": "https://registry.npmmirror.com/statuses/-/statuses-2.0.2.tgz",
+      "integrity": "sha512-DvEy55V3DB7uknRo+4iOGT5fP1slR8wQohVdknigZPMpMstaKJQWhwiYBACJE3Ul2pTnATihhBYnRhZQHGBiRw==",
+      "license": "MIT",
+      "engines": {
+        "node": ">= 0.8"
+      }
+    },
+    "node_modules/toidentifier": {
+      "version": "1.0.1",
+      "resolved": "https://registry.npmmirror.com/toidentifier/-/toidentifier-1.0.1.tgz",
+      "integrity": "sha512-o5sSPKEkg/DIQNmH43V0/uerLrpzVedkUh8tGNvaeXpfpuwjKenlSox/2O/BTlZUtEe+JG7s5YhEz608PlAHRA==",
+      "license": "MIT",
+      "engines": {
+        "node": ">=0.6"
+      }
+    },
+    "node_modules/type-is": {
+      "version": "1.6.18",
+      "resolved": "https://registry.npmmirror.com/type-is/-/type-is-1.6.18.tgz",
+      "integrity": "sha512-TkRKr9sUTxEH8MdfuCSP7VizJyzRNMjj2J2do2Jr3Kym598JVdEksuzPQCnlFPW4ky9Q+iA+ma9BGm06XQBy8g==",
+      "license": "MIT",
+      "dependencies": {
+        "media-typer": "0.3.0",
+        "mime-types": "~2.1.24"
+      },
+      "engines": {
+        "node": ">= 0.6"
+      }
+    },
+    "node_modules/unpipe": {
+      "version": "1.0.0",
+      "resolved": "https://registry.npmmirror.com/unpipe/-/unpipe-1.0.0.tgz",
+      "integrity": "sha512-pjy2bYhSsufwWlKwPc+l3cN7+wuJlK6uz0YdJEOlQDbl6jo/YlPi4mb8agUkVC8BF7V8NuzeyPNqRksA3hztKQ==",
+      "license": "MIT",
+      "engines": {
+        "node": ">= 0.8"
+      }
+    },
+    "node_modules/utils-merge": {
+      "version": "1.0.1",
+      "resolved": "https://registry.npmmirror.com/utils-merge/-/utils-merge-1.0.1.tgz",
+      "integrity": "sha512-pMZTvIkT1d+TFGvDOqodOclx0QWkkgi6Tdoa8gC8ffGAAqz9pzPTZWAybbsHHoED/ztMtkv/VoYTYyShUn81hA==",
+      "license": "MIT",
+      "engines": {
+        "node": ">= 0.4.0"
+      }
+    },
+    "node_modules/vary": {
+      "version": "1.1.2",
+      "resolved": "https://registry.npmmirror.com/vary/-/vary-1.1.2.tgz",
+      "integrity": "sha512-BNGbWLfd0eUPabhkXUVm0j8uuvREyTh5ovRa/dyow/BqAbZJyC+5fU+IzQOzmAKzYqYRAISoRhdQr3eIZ/PXqg==",
+      "license": "MIT",
+      "engines": {
+        "node": ">= 0.8"
+      }
+    }
+  }
+}
--- a/package.json
+++ b/package.json
@@ -0,0 +1,19 @@
+{
+  "name": "gpt2api-node",
+  "version": "1.0.0",
+  "description": "OpenAI Codex reverse proxy with token management",
+  "main": "src/index.js",
+  "type": "module",
+  "scripts": {
+    "start": "node src/index.js",
+    "dev": "node --watch src/index.js"
+  },
+  "keywords": ["openai", "codex", "proxy", "api"],
+  "author": "",
+  "license": "MIT",
+  "dependencies": {
+    "express": "^4.18.2",
+    "axios": "^1.6.0",
+    "dotenv": "^16.3.1"
+  }
+}
--- a/src/index.js
+++ b/src/index.js
@@ -0,0 +1,92 @@
+import express from 'express';
+import dotenv from 'dotenv';
+import fs from 'fs/promises';
+import TokenManager from './tokenManager.js';
+import ProxyHandler from './proxyHandler.js';
+
+dotenv.config();
+
+const app = express();
+const PORT = process.env.PORT || 3000;
+const TOKEN_FILE = process.env.TOKEN_FILE || './token.json';
+const MODELS_FILE = process.env.MODELS_FILE || './models.json';
+
+// 中间件
+app.use(express.json());
+
+// 初始化 Token 管理器和代理处理器
+const tokenManager = new TokenManager(TOKEN_FILE);
+const proxyHandler = new ProxyHandler(tokenManager);
+
+// 加载模型列表
+let modelsList = [];
+try {
+  const modelsData = await fs.readFile(MODELS_FILE, 'utf-8');
+  modelsList = JSON.parse(modelsData);
+  console.log(`✓ 加载了 ${modelsList.length} 个模型`);
+} catch (err) {
+  console.warn('⚠ 无法加载模型列表，使用默认列表');
+  modelsList = [
+    { id: 'gpt-5.3-codex', object: 'model', created: 1770307200, owned_by: 'openai' },
+    { id: 'gpt-5.2-codex', object: 'model', created: 1765440000, owned_by: 'openai' }
+  ];
+}
+
+// 启动时加载 token
+await tokenManager.loadToken().catch(err => {
+  console.error('❌ 启动失败:', err.message);
+  console.error('请确保 token.json 文件存在且格式正确');
+  process.exit(1);
+});
+
+// 健康检查
+app.get('/health', (req, res) => {
+  res.json({ 
+    status: 'ok',
+    token: tokenManager.getTokenInfo()
+  });
+});
+
+// OpenAI 兼容的聊天完成接口
+app.post('/v1/chat/completions', async (req, res) => {
+  const isStream = req.body.stream === true;
+  
+  if (isStream) {
+    await proxyHandler.handleStreamRequest(req, res);
+  } else {
+    await proxyHandler.handleNonStreamRequest(req, res);
+  }
+});
+
+// 模型列表接口
+app.get('/v1/models', (req, res) => {
+  res.json({
+    object: 'list',
+    data: modelsList
+  });
+});
+
+// 错误处理
+app.use((err, req, res, next) => {
+  console.error('服务器错误:', err);
+  res.status(500).json({
+    error: {
+      message: err.message || '内部服务器错误',
+      type: 'server_error'
+    }
+  });
+});
+
+// 启动服务器
+app.listen(PORT, () => {
+  console.log('=================================');
+  console.log('🚀 GPT2API Node 服务已启动');
+  console.log(`📡 监听端口: ${PORT}`);
+  console.log(`👤 账户: ${tokenManager.getTokenInfo().email || tokenManager.getTokenInfo().account_id}`);
+  console.log(`⏰ Token 过期时间: ${tokenManager.getTokenInfo().expired}`);
+  console.log('=================================');
+  console.log(`\n接口地址:`);
+  console.log(`  - 聊天: POST http://localhost:${PORT}/v1/chat/completions`);
+  console.log(`  - 模型: GET  http://localhost:${PORT}/v1/models`);
+  console.log(`  - 健康: GET  http://localhost:${PORT}/health\n`);
+});
--- a/src/proxyHandler.js
+++ b/src/proxyHandler.js
@@ -0,0 +1,423 @@
+import axios from 'axios';
+
+const CODEX_BASE_URL = 'https://chatgpt.com/backend-api/codex';
+const CODEX_CLIENT_VERSION = '0.101.0';
+const CODEX_USER_AGENT = 'codex_cli_rs/0.101.0 (Mac OS 26.0.1; arm64) Apple_Terminal/464';
+
+/**
+ * 代理处理器
+ */
+class ProxyHandler {
+  constructor(tokenManager) {
+    this.tokenManager = tokenManager;
+  }
+
+  /**
+   * 生成会话 ID
+   */
+  generateSessionId() {
+    return 'xxxxxxxx-xxxx-4xxx-yxxx-xxxxxxxxxxxx'.replace(/[xy]/g, function(c) {
+      const r = Math.random() * 16 | 0;
+      const v = c === 'x' ? r : (r & 0x3 | 0x8);
+      return v.toString(16);
+    });
+  }
+
+  /**
+   * 转换 OpenAI 格式请求到 Codex 格式
+   */
+  transformRequest(openaiRequest) {
+    const { model, messages, stream = true, stream_options, ...rest } = openaiRequest;
+
+    // 提取 system 消息作为 instructions
+    let instructions = '';
+    const userMessages = [];
+    
+    for (const msg of messages) {
+      if (msg.role === 'system') {
+        // system 消息转为 instructions
+        const content = Array.isArray(msg.content) 
+          ? msg.content.map(c => c.text || c).join('\n')
+          : msg.content;
+        instructions += (instructions ? '\n' : '') + content;
+      } else {
+        // 其他消息保留
+        userMessages.push(msg);
+      }
+    }
+
+    // 转换消息格式
+    const input = userMessages.map(msg => {
+      const contentType = msg.role === 'assistant' ? 'output_text' : 'input_text';
+      
+      return {
+        type: 'message',
+        role: msg.role,
+        content: Array.isArray(msg.content) 
+          ? msg.content.map(c => {
+              // 处理不同类型的内容
+              if (c.type === 'text') {
+                return { type: contentType, text: c.text || c };
+              } else if (c.type === 'image_url') {
+                // OpenAI 的 image_url 转换为 Codex 的 input_image
+                return { 
+                  type: 'input_image', 
+                  image_url: c.image_url?.url || c.image_url 
+                };
+              } else {
+                return c;
+              }
+            })
+          : [{ type: contentType, text: msg.content }]
+      };
+    });
+
+    // 移除 Codex 不支持的参数
+    const codexRequest = {
+      model: model || 'gpt-5.3-codex',
+      input,
+      instructions: instructions || '',
+      stream,
+      store: false  // 必须设置为 false
+    };
+
+    // 只保留 Codex 支持的参数
+    if (rest.temperature !== undefined) codexRequest.temperature = rest.temperature;
+    if (rest.max_tokens !== undefined) codexRequest.max_tokens = rest.max_tokens;
+    if (rest.top_p !== undefined) codexRequest.top_p = rest.top_p;
+
+    return codexRequest;
+  }
+
+  /**
+   * 转换 Codex 响应到 OpenAI 格式
+   */
+  transformResponse(codexResponse, model, isStream = false, state = {}) {
+    if (isStream) {
+      // 流式响应处理
+      const line = codexResponse.toString().trim();
+      
+      if (!line.startsWith('data:')) {
+        return null;
+      }
+
+      const data = line.slice(5).trim();
+      
+      if (data === '[DONE]') {
+        return 'data: [DONE]\n\n';
+      }
+
+      try {
+        const parsed = JSON.parse(data);
+        
+        // 保存响应 ID 和创建时间
+        if (parsed.type === 'response.created') {
+          state.responseId = parsed.response?.id;
+          state.createdAt = parsed.response?.created_at || Math.floor(Date.now() / 1000);
+          state.model = parsed.response?.model || model;
+          return null;
+        }
+
+        const responseId = state.responseId || 'chatcmpl-' + Date.now();
+        const createdAt = state.createdAt || Math.floor(Date.now() / 1000);
+        const modelName = state.model || model;
+        
+        // 处理不同类型的事件 - 根据原项目的实现
+        if (parsed.type === 'response.output_text.delta') {
+          // 文本增量更新
+          return `data: ${JSON.stringify({
+            id: responseId,
+            object: 'chat.completion.chunk',
+            created: createdAt,
+            model: modelName,
+            choices: [{
+              index: 0,
+              delta: { role: 'assistant', content: parsed.delta || '' },
+              finish_reason: null
+            }]
+          })}\n\n`;
+        } else if (parsed.type === 'response.reasoning_summary_text.delta') {
+          // 推理内容增量
+          return `data: ${JSON.stringify({
+            id: responseId,
+            object: 'chat.completion.chunk',
+            created: createdAt,
+            model: modelName,
+            choices: [{
+              index: 0,
+              delta: { role: 'assistant', reasoning_content: parsed.delta || '' },
+              finish_reason: null
+            }]
+          })}\n\n`;
+        } else if (parsed.type === 'response.completed') {
+          // 提取使用信息
+          const usage = parsed.response?.usage || {};
+          return `data: ${JSON.stringify({
+            id: parsed.response_id || 'chatcmpl-' + Date.now(),
+            object: 'chat.completion.chunk',
+            created: Math.floor(Date.now() / 1000),
+            model: model,
+            choices: [{
+              index: 0,
+              delta: {},
+              finish_reason: 'stop'
+            }],
+            usage: {
+              prompt_tokens: usage.input_tokens || 0,
+              completion_tokens: usage.output_tokens || 0,
+              total_tokens: usage.total_tokens || 0
+            }
+          })}\n\n`;
+        }
+      } catch (e) {
+        // 忽略 JSON 解析错误，可能是不完整的数据
+        return null;
+      }
+
+      return null;
+    } else {
+      // 非流式响应处理
+      try {
+        const parsed = typeof codexResponse === 'string' 
+          ? JSON.parse(codexResponse) 
+          : codexResponse;
+
+        const response = parsed.response || {};
+        const output = response.output || [];
+        
+        // 提取消息内容
+        let content = '';
+        for (const item of output) {
+          if (item.type === 'message' && item.content) {
+            for (const part of item.content) {
+              if (part.type === 'output_text') {
+                content += part.text || '';
+              }
+            }
+          }
+        }
+
+        const usage = response.usage || {};
+
+        return {
+          id: response.id || 'chatcmpl-' + Date.now(),
+          object: 'chat.completion',
+          created: Math.floor(Date.now() / 1000),
+          model: model,
+          choices: [{
+            index: 0,
+            message: {
+              role: 'assistant',
+              content: content
+            },
+            finish_reason: 'stop'
+          }],
+          usage: {
+            prompt_tokens: usage.input_tokens || 0,
+            completion_tokens: usage.output_tokens || 0,
+            total_tokens: usage.total_tokens || 0
+          }
+        };
+      } catch (e) {
+        throw new Error(`转换响应失败: ${e.message}`);
+      }
+    }
+  }
+
+  /**
+   * 处理流式请求
+   */
+  async handleStreamRequest(req, res) {
+    try {
+      const openaiRequest = req.body;
+      console.log('收到请求:', JSON.stringify(openaiRequest, null, 2));
+      
+      const codexRequest = this.transformRequest(openaiRequest);
+      console.log('转换后的 Codex 请求:', JSON.stringify(codexRequest, null, 2));
+      
+      const accessToken = await this.tokenManager.getValidToken();
+
+      // 设置响应头
+      res.setHeader('Content-Type', 'text/event-stream');
+      res.setHeader('Cache-Control', 'no-cache');
+      res.setHeader('Connection', 'keep-alive');
+
+      const response = await axios.post(
+        `${CODEX_BASE_URL}/responses`,
+        codexRequest,
+        {
+          headers: {
+            'Authorization': `Bearer ${accessToken}`,
+            'Content-Type': 'application/json',
+            'User-Agent': CODEX_USER_AGENT,
+            'Version': CODEX_CLIENT_VERSION,
+            'Openai-Beta': 'responses=experimental',
+            'Session_id': this.generateSessionId(),
+            'Accept': 'text/event-stream'
+          },
+          responseType: 'stream',
+          timeout: 300000 // 5 分钟超时
+        }
+      );
+
+      // 处理流式响应
+      let buffer = '';
+      const state = {}; // 用于保存响应 ID 和创建时间
+      
+      response.data.on('data', (chunk) => {
+        buffer += chunk.toString();
+        const lines = buffer.split('\n');
+        
+        // 保留最后一行（可能不完整）
+        buffer = lines.pop() || '';
+        
+        for (const line of lines) {
+          if (line.trim()) {
+            const transformed = this.transformResponse(line, openaiRequest.model, true, state);
+            if (transformed) {
+              res.write(transformed);
+            }
+          }
+        }
+      });
+
+      response.data.on('end', () => {
+        // 处理缓冲区中剩余的数据
+        if (buffer.trim()) {
+          const transformed = this.transformResponse(buffer, openaiRequest.model, true, state);
+          if (transformed) {
+            res.write(transformed);
+          }
+        }
+        res.write('data: [DONE]\n\n');
+        res.end();
+      });
+
+      response.data.on('error', (error) => {
+        console.error('流式响应错误:', error.message);
+        res.end();
+      });
+
+    } catch (error) {
+      console.error('代理请求失败:', error.message);
+      if (error.response) {
+        console.error('响应状态:', error.response.status);
+        console.error('响应头:', error.response.headers);
+        
+        // 尝试读取响应数据
+        if (error.response.data) {
+          if (typeof error.response.data === 'string') {
+            console.error('响应数据:', error.response.data);
+          } else if (error.response.data.on) {
+            // 如果是流，尝试读取
+            let data = '';
+            error.response.data.on('data', chunk => {
+              data += chunk.toString();
+            });
+            error.response.data.on('end', () => {
+              console.error('响应数据:', data);
+            });
+          } else {
+            try {
+              console.error('响应数据:', JSON.stringify(error.response.data));
+            } catch (e) {
+              console.error('响应数据类型:', typeof error.response.data);
+            }
+          }
+        }
+      }
+      
+      if (!res.headersSent) {
+        res.status(error.response?.status || 500).json({
+          error: {
+            message: error.response?.data?.error?.message || error.message,
+            type: 'proxy_error',
+            code: error.response?.status || 500
+          }
+        });
+      }
+    }
+  }
+
+  /**
+   * 处理非流式请求
+   */
+  async handleNonStreamRequest(req, res) {
+    try {
+      const openaiRequest = req.body;
+      console.log('收到请求:', JSON.stringify(openaiRequest, null, 2));
+      
+      const codexRequest = this.transformRequest({ ...openaiRequest, stream: false });
+      console.log('转换后的 Codex 请求:', JSON.stringify(codexRequest, null, 2));
+      
+      const accessToken = await this.tokenManager.getValidToken();
+
+      const response = await axios.post(
+        `${CODEX_BASE_URL}/responses`,
+        codexRequest,
+        {
+          headers: {
+            'Authorization': `Bearer ${accessToken}`,
+            'Content-Type': 'application/json',
+            'User-Agent': CODEX_USER_AGENT,
+            'Version': CODEX_CLIENT_VERSION,
+            'Openai-Beta': 'responses=experimental',
+            'Session_id': this.generateSessionId()
+          },
+          timeout: 300000
+        }
+      );
+
+      // 处理响应数据 - 查找 response.completed 事件
+      let finalResponse = null;
+      const lines = response.data.split('\n');
+      
+      for (const line of lines) {
+        if (line.trim().startsWith('data:')) {
+          const data = line.slice(5).trim();
+          try {
+            const parsed = JSON.parse(data);
+            if (parsed.type === 'response.completed') {
+              finalResponse = parsed;
+              break;
+            }
+          } catch (e) {
+            // 忽略解析错误
+          }
+        }
+      }
+
+      if (!finalResponse) {
+        throw new Error('未收到完整响应');
+      }
+
+      // 转换为 OpenAI 格式
+      const transformed = this.transformNonStreamResponse(finalResponse, openaiRequest.model);
+      res.json(transformed);
+
+    } catch (error) {
+      console.error('代理请求失败:', error.message);
+      if (error.response) {
+        console.error('响应状态:', error.response.status);
+        console.error('响应头:', error.response.headers);
+        try {
+          console.error('响应数据:', typeof error.response.data === 'string' 
+            ? error.response.data 
+            : JSON.stringify(error.response.data));
+        } catch (e) {
+          console.error('响应数据无法序列化');
+        }
+      }
+      
+      res.status(error.response?.status || 500).json({
+        error: {
+          message: error.response?.data?.error?.message || error.message,
+          type: 'proxy_error',
+          code: error.response?.status || 500
+        }
+      });
+    }
+  }
+}
+
+export default ProxyHandler;
--- a/src/tokenManager.js
+++ b/src/tokenManager.js
@@ -0,0 +1,132 @@
+import fs from 'fs/promises';
+import axios from 'axios';
+
+// OpenAI OAuth 配置
+const TOKEN_URL = 'https://auth.openai.com/oauth/token';
+const CLIENT_ID = 'app_EMoamEEZ73f0CkXaXp7hrann';
+
+/**
+ * Token 管理器
+ */
+class TokenManager {
+  constructor(tokenFilePath) {
+    this.tokenFilePath = tokenFilePath;
+    this.tokenData = null;
+  }
+
+  /**
+   * 从文件加载 token
+   */
+  async loadToken() {
+    try {
+      const data = await fs.readFile(this.tokenFilePath, 'utf-8');
+      this.tokenData = JSON.parse(data);
+      console.log(`✓ Token 加载成功: ${this.tokenData.email || this.tokenData.account_id}`);
+      return this.tokenData;
+    } catch (error) {
+      throw new Error(`加载 token 文件失败: ${error.message}`);
+    }
+  }
+
+  /**
+   * 保存 token 到文件
+   */
+  async saveToken(tokenData) {
+    try {
+      this.tokenData = tokenData;
+      await fs.writeFile(this.tokenFilePath, JSON.stringify(tokenData, null, 2), 'utf-8');
+      console.log('✓ Token 已保存到文件');
+    } catch (error) {
+      console.error(`保存 token 文件失败: ${error.message}`);
+    }
+  }
+
+  /**
+   * 检查 token 是否过期
+   */
+  isTokenExpired() {
+    if (!this.tokenData || !this.tokenData.expired) {
+      return true;
+    }
+    const expireTime = new Date(this.tokenData.expired);
+    const now = new Date();
+    // 提前 5 分钟刷新
+    return expireTime.getTime() - now.getTime() < 5 * 60 * 1000;
+  }
+
+  /**
+   * 刷新 access token
+   */
+  async refreshToken() {
+    if (!this.tokenData || !this.tokenData.refresh_token) {
+      throw new Error('没有可用的 refresh_token');
+    }
+
+    console.log('正在刷新 token...');
+
+    try {
+      const params = new URLSearchParams({
+        client_id: CLIENT_ID,
+        grant_type: 'refresh_token',
+        refresh_token: this.tokenData.refresh_token,
+        scope: 'openid profile email'
+      });
+
+      const response = await axios.post(TOKEN_URL, params.toString(), {
+        headers: {
+          'Content-Type': 'application/x-www-form-urlencoded',
+          'Accept': 'application/json'
+        }
+      });
+
+      const { access_token, refresh_token, id_token, expires_in } = response.data;
+
+      // 更新 token 数据
+      const newTokenData = {
+        ...this.tokenData,
+        access_token,
+        refresh_token: refresh_token || this.tokenData.refresh_token,
+        id_token: id_token || this.tokenData.id_token,
+        expired: new Date(Date.now() + expires_in * 1000).toISOString(),
+        last_refresh: new Date().toISOString()
+      };
+
+      await this.saveToken(newTokenData);
+      console.log('✓ Token 刷新成功');
+
+      return newTokenData;
+    } catch (error) {
+      const errorMsg = error.response?.data || error.message;
+      throw new Error(`Token 刷新失败: ${JSON.stringify(errorMsg)}`);
+    }
+  }
+
+  /**
+   * 获取有效的 access token（自动刷新）
+   */
+  async getValidToken() {
+    if (!this.tokenData) {
+      await this.loadToken();
+    }
+
+    if (this.isTokenExpired()) {
+      await this.refreshToken();
+    }
+
+    return this.tokenData.access_token;
+  }
+
+  /**
+   * 获取 token 信息
+   */
+  getTokenInfo() {
+    return {
+      email: this.tokenData?.email,
+      account_id: this.tokenData?.account_id,
+      expired: this.tokenData?.expired,
+      type: this.tokenData?.type
+    };
+  }
+}
+
+export default TokenManager;
--- a/token.example.json
+++ b/token.example.json
@@ -0,0 +1,10 @@
+{
+  "id_token": "your_id_token_here",
+  "access_token": "your_access_token_here",
+  "refresh_token": "your_refresh_token_here",
+  "account_id": "your_account_id",
+  "email": "your_email@example.com",
+  "type": "codex",
+  "expired": "2026-12-31T23:59:59.000Z",
+  "last_refresh": "2026-01-01T00:00:00.000Z"
+}