Mercurial
annotate mrjunejune/inference/litellm_proxy.py @ 279:b3b547563ec7
Add Google connector service and agent wiki
Implement the C/Seobeo Google Drive and Gmail connector with encrypted OAuth storage, Zenbu authentication, browser testing, AI tool discovery, chunked HTTP decoding, and Bazel coverage. Consolidate repository guidance into progressive wiki documentation and enforce arena-first allocation for new first-party C code.
Co-authored-by: Copilot <[email protected]>
Copilot-Session: 84c338fd-0939-4bb3-b7f3-1062eb213e5d
| author | MrJuneJune <me@mrjunejune.com> |
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| date | Mon, 17 Aug 2026 22:22:36 -0700 |
| parents | 1f9877b637e9 |
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| rev | line source |
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1 from __future__ import annotations |
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2 |
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3 import argparse |
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4 import asyncio |
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5 import json |
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6 import os |
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7 import pathlib |
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8 from collections.abc import AsyncIterator, Awaitable, Callable |
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9 from typing import Any |
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10 |
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11 import litellm |
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12 import uvicorn |
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13 import yaml |
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14 from fastapi import FastAPI, HTTPException, Request |
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15 from fastapi.responses import JSONResponse, StreamingResponse |
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16 |
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17 Completion = Callable[..., Awaitable[Any]] |
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18 |
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19 |
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20 def resolve_token_directory(explicit: str | None = None) -> pathlib.Path: |
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21 if explicit: |
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22 return pathlib.Path(explicit).expanduser().resolve() |
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23 configured = os.environ.get("GITHUB_COPILOT_TOKEN_DIR") |
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24 if configured: |
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25 return pathlib.Path(configured).expanduser().resolve() |
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26 state_root = os.environ.get("MRJUNEJUNE_INFERENCE_STATE") |
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27 if state_root: |
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28 return ( |
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29 pathlib.Path(state_root).expanduser().resolve() |
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30 / "litellm-copilot" |
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31 ) |
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32 xdg_state = os.environ.get("XDG_STATE_HOME") |
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33 root = ( |
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34 pathlib.Path(xdg_state).expanduser() |
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35 if xdg_state |
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36 else pathlib.Path.home() / ".local" / "state" |
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37 ) |
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38 return (root / "mrjunejune" / "inference" / "litellm-copilot").resolve() |
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39 |
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40 |
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41 def _serialize(value: Any) -> dict[str, Any]: |
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42 if hasattr(value, "model_dump"): |
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43 return value.model_dump(exclude_none=True) |
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44 if hasattr(value, "dict"): |
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45 return value.dict() |
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46 if isinstance(value, dict): |
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47 return value |
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48 raise TypeError("LiteLLM returned an unsupported response") |
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49 |
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50 |
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51 def create_app( |
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52 completion: Completion = litellm.acompletion, |
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53 *, |
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54 model_alias: str = "jrpg-copilot", |
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55 upstream_model: str = "github_copilot/gpt-4", |
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56 ) -> FastAPI: |
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57 app = FastAPI(docs_url=None, redoc_url=None, openapi_url=None) |
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58 |
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59 @app.get("/health/liveliness") |
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60 async def health() -> dict[str, str]: |
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61 return {"status": "ready"} |
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62 |
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63 @app.get("/health/readiness") |
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64 async def readiness() -> dict[str, str]: |
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65 from litellm.llms.github_copilot.authenticator import Authenticator |
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66 |
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67 try: |
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68 await asyncio.to_thread(Authenticator().get_api_key) |
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69 except Exception as error: |
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70 raise HTTPException( |
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71 status_code=503, |
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72 detail="GitHub Copilot authentication unavailable", |
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73 ) from error |
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74 return {"status": "ready"} |
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75 |
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76 @app.post("/v1/chat/completions") |
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77 async def chat(request: Request): |
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78 master_key = os.environ.get("LITELLM_MASTER_KEY", "") |
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79 authorization = request.headers.get("Authorization", "") |
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80 if not master_key or authorization != f"Bearer {master_key}": |
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81 raise HTTPException(status_code=401, detail="Invalid gateway key") |
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82 |
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83 payload = await request.json() |
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84 if not isinstance(payload, dict) or payload.get("model") != model_alias: |
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85 raise HTTPException(status_code=400, detail="Unknown model alias") |
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86 payload = dict(payload) |
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87 payload["model"] = upstream_model |
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88 configured_max = int(os.environ.get("LITELLM_MAX_OUTPUT_TOKENS", "1024")) |
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89 requested_max = payload.get("max_tokens") |
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90 if not isinstance(requested_max, int) or requested_max > configured_max: |
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91 payload["max_tokens"] = configured_max |
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92 |
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93 try: |
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94 response = await completion(**payload) |
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95 except Exception as error: |
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96 raise HTTPException( |
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97 status_code=502, |
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98 detail="GitHub Copilot provider request failed", |
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99 ) from error |
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100 |
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101 if payload.get("stream"): |
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102 async def events() -> AsyncIterator[str]: |
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103 async for chunk in response: |
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104 yield ( |
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105 "data: " |
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106 + json.dumps(_serialize(chunk), separators=(",", ":")) |
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107 + "\n\n" |
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108 ) |
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109 yield "data: [DONE]\n\n" |
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110 |
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111 return StreamingResponse(events(), media_type="text/event-stream") |
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112 return JSONResponse(_serialize(response)) |
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113 |
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114 return app |
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115 |
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116 |
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117 def _load_model(config_path: str) -> tuple[str, str]: |
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118 with open(config_path, encoding="utf-8") as config_file: |
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119 config = yaml.safe_load(config_file) |
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120 models = config.get("model_list", []) |
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121 if len(models) != 1: |
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122 raise ValueError("LiteLLM config must contain exactly one model") |
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123 model = models[0] |
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124 return model["model_name"], model["litellm_params"]["model"] |
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125 |
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126 |
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127 def main() -> None: |
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128 parser = argparse.ArgumentParser(description="Minimal LiteLLM gateway") |
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129 parser.add_argument("--host", default="127.0.0.1") |
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130 parser.add_argument("--port", type=int, default=4000) |
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131 parser.add_argument("--config") |
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132 parser.add_argument("--authenticate", action="store_true") |
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133 parser.add_argument( |
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134 "--token-dir", |
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135 help=( |
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136 "Persistent GitHub Copilot token directory. Defaults to " |
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137 "GITHUB_COPILOT_TOKEN_DIR, MRJUNEJUNE_INFERENCE_STATE, or " |
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138 "~/.local/state/mrjunejune/inference/litellm-copilot." |
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139 ), |
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140 ) |
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141 args = parser.parse_args() |
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142 if args.authenticate: |
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143 from litellm.llms.github_copilot.authenticator import Authenticator |
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144 |
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145 token_directory = resolve_token_directory(args.token_dir) |
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146 token_directory.mkdir(parents=True, exist_ok=True, mode=0o700) |
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147 token_directory.chmod(0o700) |
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148 os.environ["GITHUB_COPILOT_TOKEN_DIR"] = str(token_directory) |
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149 authenticator = Authenticator() |
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150 authenticator.get_access_token() |
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151 authenticator.get_api_key() |
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152 print(f"GitHub Copilot authentication stored in {token_directory}") |
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153 return |
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154 if not args.config: |
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155 parser.error("--config is required unless --authenticate is used") |
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156 model_alias, upstream_model = _load_model(args.config) |
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157 uvicorn.run( |
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158 create_app(model_alias=model_alias, upstream_model=upstream_model), |
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159 host=args.host, |
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160 port=args.port, |
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161 access_log=False, |
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162 ) |
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163 |
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164 |
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165 if __name__ == "__main__": |
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166 main() |