| 1 | from __future__ import annotations |
| 2 | |
| 3 | import base64 |
| 4 | import json |
| 5 | import time |
| 6 | from pathlib import Path |
| 7 | from typing import Any |
| 8 | from urllib.parse import urlencode, urlparse |
| 9 | |
| 10 | from plugins._oauth.helpers.providers.base import ( |
| 11 | DUMMY_API_KEY, |
| 12 | GEMINI_API_PROVIDER_ID, |
| 13 | CallbackResult, |
| 14 | LoginPollResult, |
| 15 | LoginStartResult, |
| 16 | OAuthProviderMetadata, |
| 17 | ProviderError, |
| 18 | provider_auth_path, |
| 19 | read_json_file, |
| 20 | write_private_json, |
| 21 | ) |
| 22 | from plugins._oauth.helpers.providers.common import ( |
| 23 | as_int as _as_int, |
| 24 | as_optional_string as _as_optional_string, |
| 25 | error_message as _error_message, |
| 26 | expires_ms as _expires_ms, |
| 27 | json_payload as _json_payload, |
| 28 | latest_attempt, |
| 29 | models_from_payload as _models_from_payload, |
| 30 | parse_manual_callback, |
| 31 | ) |
| 32 | from plugins._oauth.helpers.state import get_attempt, pop_attempt, put_attempt |
| 33 | |
| 34 | |
| 35 | GOOGLE_AUTHORIZATION_ENDPOINT = "https://accounts.google.com/o/oauth2/v2/auth" |
| 36 | GOOGLE_TOKEN_ENDPOINT = "https://oauth2.googleapis.com/token" |
| 37 | GEMINI_OPENAI_API_BASE = "https://generativelanguage.googleapis.com/v1beta/openai" |
| 38 | CURATED_MODELS = [ |
| 39 | "gemini-3.5-flash", |
| 40 | "gemini-3.1-pro-preview", |
| 41 | "gemini-3-flash-preview", |
| 42 | "gemini-3.1-flash-lite", |
| 43 | "gemini-2.5-pro", |
| 44 | "gemini-2.5-flash", |
| 45 | "gemini-2.5-flash-lite", |
| 46 | ] |
| 47 | NOT_CONNECTED_MESSAGE = "Google Gemini API OAuth is not connected yet." |
| 48 | CLIENT_CONFIG_NOTE = ( |
| 49 | "Requires a Google Cloud OAuth client with the Generative Language API enabled. " |
| 50 | "This uses Gemini API billing/quotas, not Antigravity or Gemini Code Assist subscription quota." |
| 51 | ) |
| 52 | REFRESH_MARGIN_MS = 60_000 |
| 53 | |
| 54 | |
| 55 | class GeminiApiOAuthProvider: |
| 56 | provider_id = GEMINI_API_PROVIDER_ID |
| 57 | |
| 58 | def auth_path(self) -> Path: |
| 59 | return provider_auth_path("gemini_api") |
| 60 | |
| 61 | def read_auth(self) -> dict[str, Any]: |
| 62 | return read_json_file(self.auth_path()) |
| 63 | |
| 64 | def write_auth(self, data: dict[str, Any]) -> None: |
| 65 | write_private_json(self.auth_path(), data) |
| 66 | |
| 67 | def metadata(self) -> OAuthProviderMetadata: |
| 68 | cfg = _gemini_api_config() |
| 69 | base_path = cfg["proxy_base_path"] |
| 70 | return OAuthProviderMetadata( |
| 71 | provider_id=GEMINI_API_PROVIDER_ID, |
| 72 | display_name="Google Cloud Gemini", |
| 73 | short_name="Google Cloud", |
| 74 | model_provider_id=GEMINI_API_PROVIDER_ID, |
| 75 | icon="google", |
| 76 | auth_flow="browser_pkce", |
| 77 | default_model="gemini-3.5-flash", |
| 78 | default_models=list(CURATED_MODELS), |
| 79 | proxy_base_path=base_path, |
| 80 | callback_path=cfg["callback_path"], |
| 81 | supports_manual_callback=True, |
| 82 | supports_oauth_client_config=True, |
| 83 | supports_quota_project=True, |
| 84 | note=CLIENT_CONFIG_NOTE, |
| 85 | ) |
| 86 | |
| 87 | def status(self) -> dict[str, Any]: |
| 88 | cfg = _gemini_api_config() |
| 89 | auth = self.read_auth() |
| 90 | access = str(auth.get("access") or "") |
| 91 | refresh = str(auth.get("refresh") or "") |
| 92 | client_id = str(cfg.get("client_id") or auth.get("client_id") or "") |
| 93 | quota_project_id = str(cfg.get("quota_project_id") or auth.get("quota_project_id") or "") |
| 94 | result = { |
| 95 | **self.metadata().to_dict(), |
| 96 | "enabled": cfg["enabled"], |
| 97 | "connected": bool(access and refresh), |
| 98 | "account_label": _account_label(auth) if access or refresh else "", |
| 99 | "client_id": client_id, |
| 100 | "client_secret_configured": bool(cfg.get("client_secret") or auth.get("client_secret")), |
| 101 | "quota_project_id": quota_project_id, |
| 102 | "base_url": safe_api_base_url(auth.get("base_url") or cfg.get("api_base_url")), |
| 103 | "auth_file_path": str(self.auth_path()), |
| 104 | "v1_base_path": f'{cfg["proxy_base_path"]}/v1', |
| 105 | } |
| 106 | if access and refresh and _as_int(auth.get("expires"), 0) <= int(time.time() * 1000): |
| 107 | result["warning"] = "Google Gemini API OAuth access token is expired and will be refreshed on the next request." |
| 108 | return result |
| 109 | |
| 110 | def start_login(self, input: dict[str, Any] | None = None, request: Any = None) -> LoginStartResult: |
| 111 | data = input or {} |
| 112 | cfg = _gemini_api_config() |
| 113 | if not cfg["enabled"]: |
| 114 | return LoginStartResult( |
| 115 | ok=False, |
| 116 | provider_id=GEMINI_API_PROVIDER_ID, |
| 117 | flow="browser_pkce", |
| 118 | error="Google Gemini API OAuth connection is disabled.", |
| 119 | ) |
| 120 | |
| 121 | try: |
| 122 | client = _client_config(data, cfg) |
| 123 | codex = _codex_helper() |
| 124 | pkce = codex.generate_pkce() |
| 125 | state = codex.generate_state() |
| 126 | redirect_uri = _redirect_uri(request, cfg["callback_path"]) |
| 127 | attempt = put_attempt( |
| 128 | state, |
| 129 | pkce.verifier, |
| 130 | redirect_uri, |
| 131 | provider_id=GEMINI_API_PROVIDER_ID, |
| 132 | extra={ |
| 133 | "client_id": client["client_id"], |
| 134 | "client_secret": client["client_secret"], |
| 135 | "quota_project_id": client["quota_project_id"], |
| 136 | "scope": " ".join(cfg["scopes"]), |
| 137 | "code_challenge": pkce.challenge, |
| 138 | "token_endpoint": GOOGLE_TOKEN_ENDPOINT, |
| 139 | "api_base_url": safe_api_base_url(cfg["api_base_url"]), |
| 140 | }, |
| 141 | ) |
| 142 | query = { |
| 143 | "response_type": "code", |
| 144 | "client_id": client["client_id"], |
| 145 | "redirect_uri": redirect_uri, |
| 146 | "scope": " ".join(cfg["scopes"]), |
| 147 | "code_challenge": pkce.challenge, |
| 148 | "code_challenge_method": "S256", |
| 149 | "state": state, |
| 150 | "access_type": "offline", |
| 151 | "prompt": "consent", |
| 152 | "include_granted_scopes": "true", |
| 153 | } |
| 154 | auth_url = f"{GOOGLE_AUTHORIZATION_ENDPOINT}?{urlencode(query)}" |
| 155 | except Exception as exc: |
| 156 | return LoginStartResult( |
| 157 | ok=False, |
| 158 | provider_id=GEMINI_API_PROVIDER_ID, |
| 159 | flow="browser_pkce", |
| 160 | error=str(exc), |
| 161 | message=str(exc), |
| 162 | ) |
| 163 | |
| 164 | return LoginStartResult( |
| 165 | ok=True, |
| 166 | provider_id=GEMINI_API_PROVIDER_ID, |
| 167 | flow="browser_pkce", |
| 168 | auth_url=auth_url, |
| 169 | redirect_uri=redirect_uri, |
| 170 | expires_at=attempt.expires_at, |
| 171 | ) |
| 172 | |
| 173 | def poll_login(self, input: dict[str, Any] | None = None, request: Any = None) -> LoginPollResult: |
| 174 | del input, request |
| 175 | return LoginPollResult( |
| 176 | ok=False, |
| 177 | provider_id=GEMINI_API_PROVIDER_ID, |
| 178 | error="Google Gemini API OAuth uses browser callback login.", |
| 179 | ) |
| 180 | |
| 181 | def exchange_code( |
| 182 | self, |
| 183 | token_endpoint: str, |
| 184 | code: str, |
| 185 | redirect_uri: str, |
| 186 | code_verifier: str, |
| 187 | client_id: str, |
| 188 | client_secret: str, |
| 189 | ) -> dict[str, Any]: |
| 190 | import requests |
| 191 | |
| 192 | _validate_google_token_endpoint(token_endpoint) |
| 193 | data = { |
| 194 | "grant_type": "authorization_code", |
| 195 | "code": code, |
| 196 | "redirect_uri": redirect_uri, |
| 197 | "client_id": client_id, |
| 198 | "code_verifier": code_verifier, |
| 199 | } |
| 200 | if client_secret: |
| 201 | data["client_secret"] = client_secret |
| 202 | |
| 203 | response = requests.post( |
| 204 | token_endpoint, |
| 205 | headers={ |
| 206 | "Accept": "application/json", |
| 207 | "Content-Type": "application/x-www-form-urlencoded", |
| 208 | }, |
| 209 | data=data, |
| 210 | timeout=30, |
| 211 | ) |
| 212 | payload = _json_payload(response) |
| 213 | if not response.ok: |
| 214 | raise ProviderError( |
| 215 | _error_message(payload, f"Google Gemini API token exchange failed with status {response.status_code}."), |
| 216 | code="token_exchange_failed", |
| 217 | status=response.status_code, |
| 218 | ) |
| 219 | _validate_token_payload(payload, require_refresh=True) |
| 220 | return payload |
| 221 | |
| 222 | def manual_callback(self, input: dict[str, Any], request: Any = None) -> LoginPollResult: |
| 223 | del request |
| 224 | raw = input.get("callback") |
| 225 | if raw is None: |
| 226 | raw = input.get("callback_url") |
| 227 | return self._complete_from_callback(parse_manual_callback(raw), allow_missing_state=True) |
| 228 | |
| 229 | def complete_callback( |
| 230 | self, |
| 231 | args: dict[str, Any], |
| 232 | request: Any = None, |
| 233 | ) -> CallbackResult: |
| 234 | del request |
| 235 | callback = { |
| 236 | "code": _as_optional_string(args.get("code")), |
| 237 | "state": _as_optional_string(args.get("state")), |
| 238 | "error": _as_optional_string(args.get("error")), |
| 239 | "error_description": _as_optional_string(args.get("error_description")), |
| 240 | } |
| 241 | result = self._complete_from_callback(callback, allow_missing_state=False) |
| 242 | return CallbackResult( |
| 243 | ok=result.ok, |
| 244 | provider_id=GEMINI_API_PROVIDER_ID, |
| 245 | account_label=result.account_label, |
| 246 | account_id=result.account_id, |
| 247 | error=result.error, |
| 248 | ) |
| 249 | |
| 250 | def _complete_from_callback( |
| 251 | self, |
| 252 | callback: dict[str, str | None] | None, |
| 253 | *, |
| 254 | allow_missing_state: bool, |
| 255 | ) -> LoginPollResult: |
| 256 | if not callback: |
| 257 | return LoginPollResult(ok=False, provider_id=GEMINI_API_PROVIDER_ID, error="Missing OAuth callback.") |
| 258 | if callback.get("error"): |
| 259 | return LoginPollResult( |
| 260 | ok=False, |
| 261 | provider_id=GEMINI_API_PROVIDER_ID, |
| 262 | error=str(callback.get("error_description") or callback.get("error")), |
| 263 | ) |
| 264 | |
| 265 | code = str(callback.get("code") or "").strip() |
| 266 | if not code: |
| 267 | return LoginPollResult( |
| 268 | ok=False, |
| 269 | provider_id=GEMINI_API_PROVIDER_ID, |
| 270 | error="The OAuth callback did not include an authorization code.", |
| 271 | ) |
| 272 | |
| 273 | state = str(callback.get("state") or "").strip() |
| 274 | attempt = None |
| 275 | if state: |
| 276 | attempt = get_attempt(state) |
| 277 | if attempt is None: |
| 278 | if latest_attempt(GEMINI_API_PROVIDER_ID) is not None: |
| 279 | return LoginPollResult( |
| 280 | ok=False, |
| 281 | provider_id=GEMINI_API_PROVIDER_ID, |
| 282 | error="OAuth state mismatch. Return to Agent Zero and start a new Google Gemini API connection.", |
| 283 | ) |
| 284 | return LoginPollResult( |
| 285 | ok=False, |
| 286 | provider_id=GEMINI_API_PROVIDER_ID, |
| 287 | expired=True, |
| 288 | error="OAuth sign-in expired. Return to Agent Zero and start a new Google Gemini API connection.", |
| 289 | ) |
| 290 | if attempt.provider_id != GEMINI_API_PROVIDER_ID: |
| 291 | return LoginPollResult( |
| 292 | ok=False, |
| 293 | provider_id=GEMINI_API_PROVIDER_ID, |
| 294 | error="OAuth state mismatch. Return to Agent Zero and start a new Google Gemini API connection.", |
| 295 | ) |
| 296 | elif allow_missing_state: |
| 297 | attempt = latest_attempt(GEMINI_API_PROVIDER_ID) |
| 298 | if attempt is None: |
| 299 | return LoginPollResult( |
| 300 | ok=False, |
| 301 | provider_id=GEMINI_API_PROVIDER_ID, |
| 302 | error="No active Google Gemini API sign-in attempt was found.", |
| 303 | ) |
| 304 | state = attempt.state |
| 305 | else: |
| 306 | return LoginPollResult( |
| 307 | ok=False, |
| 308 | provider_id=GEMINI_API_PROVIDER_ID, |
| 309 | error="The OAuth callback did not include state.", |
| 310 | ) |
| 311 | |
| 312 | token_endpoint = str(attempt.extra.get("token_endpoint") or GOOGLE_TOKEN_ENDPOINT) |
| 313 | client_id = str(attempt.extra.get("client_id") or "") |
| 314 | client_secret = str(attempt.extra.get("client_secret") or "") |
| 315 | try: |
| 316 | payload = self.exchange_code( |
| 317 | token_endpoint, |
| 318 | code, |
| 319 | attempt.redirect_uri, |
| 320 | attempt.verifier, |
| 321 | client_id, |
| 322 | client_secret, |
| 323 | ) |
| 324 | auth = _auth_from_token_payload( |
| 325 | payload, |
| 326 | token_endpoint, |
| 327 | client_id=client_id, |
| 328 | client_secret=client_secret, |
| 329 | quota_project_id=str(attempt.extra.get("quota_project_id") or ""), |
| 330 | api_base_url=str(attempt.extra.get("api_base_url") or GEMINI_OPENAI_API_BASE), |
| 331 | ) |
| 332 | self.write_auth(auth) |
| 333 | pop_attempt(state) |
| 334 | except Exception as exc: |
| 335 | return LoginPollResult( |
| 336 | ok=False, |
| 337 | provider_id=GEMINI_API_PROVIDER_ID, |
| 338 | error=str(exc), |
| 339 | ) |
| 340 | |
| 341 | label = _account_label(auth) |
| 342 | return LoginPollResult( |
| 343 | ok=True, |
| 344 | provider_id=GEMINI_API_PROVIDER_ID, |
| 345 | completed=True, |
| 346 | account_label=label, |
| 347 | account_id=label, |
| 348 | ) |
| 349 | |
| 350 | def ensure_fresh_auth(self) -> dict[str, Any]: |
| 351 | auth = self.read_auth() |
| 352 | refresh = str(auth.get("refresh") or "") |
| 353 | if not refresh: |
| 354 | return auth |
| 355 | |
| 356 | access = str(auth.get("access") or "") |
| 357 | expires = _as_int(auth.get("expires"), 0) |
| 358 | if access and expires and expires > int(time.time() * 1000) + REFRESH_MARGIN_MS: |
| 359 | return auth |
| 360 | |
| 361 | token_endpoint = str(auth.get("token_endpoint") or GOOGLE_TOKEN_ENDPOINT) |
| 362 | _validate_google_token_endpoint(token_endpoint) |
| 363 | client_id = str(auth.get("client_id") or "") |
| 364 | client_secret = str(auth.get("client_secret") or "") |
| 365 | cfg = _gemini_api_config() |
| 366 | if cfg.get("client_id"): |
| 367 | client_id = str(cfg["client_id"]) |
| 368 | if cfg.get("client_secret"): |
| 369 | client_secret = str(cfg["client_secret"]) |
| 370 | if not client_id: |
| 371 | raise ProviderError( |
| 372 | "Google Gemini API OAuth refresh requires the original OAuth client ID.", |
| 373 | code="missing_oauth_client", |
| 374 | status=401, |
| 375 | ) |
| 376 | |
| 377 | refreshed = self._refresh_tokens(token_endpoint, refresh, client_id, client_secret, auth) |
| 378 | self.write_auth(refreshed) |
| 379 | return refreshed |
| 380 | |
| 381 | def _refresh_tokens( |
| 382 | self, |
| 383 | token_endpoint: str, |
| 384 | refresh: str, |
| 385 | client_id: str, |
| 386 | client_secret: str, |
| 387 | existing: dict[str, Any], |
| 388 | ) -> dict[str, Any]: |
| 389 | import requests |
| 390 | |
| 391 | data = { |
| 392 | "grant_type": "refresh_token", |
| 393 | "refresh_token": refresh, |
| 394 | "client_id": client_id, |
| 395 | } |
| 396 | if client_secret: |
| 397 | data["client_secret"] = client_secret |
| 398 | response = requests.post( |
| 399 | token_endpoint, |
| 400 | headers={ |
| 401 | "Accept": "application/json", |
| 402 | "Content-Type": "application/x-www-form-urlencoded", |
| 403 | }, |
| 404 | data=data, |
| 405 | timeout=30, |
| 406 | ) |
| 407 | payload = _json_payload(response) |
| 408 | if not response.ok: |
| 409 | raise ProviderError( |
| 410 | _error_message(payload, f"Google Gemini API token refresh failed with status {response.status_code}."), |
| 411 | code="token_refresh_failed", |
| 412 | status=response.status_code, |
| 413 | ) |
| 414 | _validate_token_payload(payload, require_refresh=False) |
| 415 | merged = dict(existing) |
| 416 | merged.update( |
| 417 | _auth_from_token_payload( |
| 418 | payload, |
| 419 | token_endpoint, |
| 420 | fallback_refresh=refresh, |
| 421 | client_id=client_id, |
| 422 | client_secret=client_secret, |
| 423 | quota_project_id=str(existing.get("quota_project_id") or ""), |
| 424 | api_base_url=str(existing.get("base_url") or GEMINI_OPENAI_API_BASE), |
| 425 | ) |
| 426 | ) |
| 427 | if not payload.get("id_token") and existing.get("id_token"): |
| 428 | merged["id_token"] = existing["id_token"] |
| 429 | return merged |
| 430 | |
| 431 | def models(self) -> list[str]: |
| 432 | if not self.read_auth(): |
| 433 | return list(CURATED_MODELS) |
| 434 | try: |
| 435 | auth = self.ensure_fresh_auth() |
| 436 | except Exception: |
| 437 | return list(CURATED_MODELS) |
| 438 | access = str(auth.get("access") or "") |
| 439 | if not access: |
| 440 | return list(CURATED_MODELS) |
| 441 | |
| 442 | base_url = safe_api_base_url(auth.get("base_url")) |
| 443 | try: |
| 444 | import requests |
| 445 | |
| 446 | response = requests.get( |
| 447 | f"{base_url}/models", |
| 448 | headers=_gemini_headers(auth), |
| 449 | timeout=30, |
| 450 | ) |
| 451 | if not response.ok: |
| 452 | return list(CURATED_MODELS) |
| 453 | parsed = _models_from_payload(response.json()) |
| 454 | return parsed or list(CURATED_MODELS) |
| 455 | except Exception: |
| 456 | return list(CURATED_MODELS) |
| 457 | |
| 458 | def disconnect(self) -> dict[str, Any]: |
| 459 | path = self.auth_path() |
| 460 | existed = path.exists() |
| 461 | try: |
| 462 | path.unlink(missing_ok=True) |
| 463 | except FileNotFoundError: |
| 464 | pass |
| 465 | return { |
| 466 | "disconnected": existed, |
| 467 | "removed_auth_files": [str(path)] if existed else [], |
| 468 | } |
| 469 | |
| 470 | def api_key(self) -> str: |
| 471 | return DUMMY_API_KEY |
| 472 | |
| 473 | def register_routes(self, app: Any) -> None: |
| 474 | from plugins._oauth.helpers import routes |
| 475 | |
| 476 | route_defs = [ |
| 477 | ("/oauth/gemini-api/health", "oauth_gemini_api_health", routes.gemini_api_health, ["GET"]), |
| 478 | ("/oauth/gemini-api/callback", "oauth_gemini_api_callback", routes.gemini_api_callback, ["GET"]), |
| 479 | ( |
| 480 | "/oauth/gemini-api/v1/models", |
| 481 | "oauth_gemini_api_models", |
| 482 | routes.gemini_api_models, |
| 483 | ["GET", "OPTIONS"], |
| 484 | ), |
| 485 | ( |
| 486 | "/oauth/gemini-api/v1/chat/completions", |
| 487 | "oauth_gemini_api_chat_completions", |
| 488 | routes.gemini_api_chat_completions, |
| 489 | ["POST", "OPTIONS"], |
| 490 | ), |
| 491 | ( |
| 492 | "/oauth/gemini-api/v1/responses", |
| 493 | "oauth_gemini_api_responses", |
| 494 | routes.gemini_api_responses, |
| 495 | ["POST", "OPTIONS"], |
| 496 | ), |
| 497 | ] |
| 498 | for rule, endpoint, view_func, methods in route_defs: |
| 499 | if endpoint in app.view_functions: |
| 500 | continue |
| 501 | app.add_url_rule(rule, endpoint, view_func, methods=methods) |
| 502 | |
| 503 | |
| 504 | def _auth_from_token_payload( |
| 505 | payload: dict[str, Any], |
| 506 | token_endpoint: str, |
| 507 | *, |
| 508 | fallback_refresh: str = "", |
| 509 | client_id: str = "", |
| 510 | client_secret: str = "", |
| 511 | quota_project_id: str = "", |
| 512 | api_base_url: str = GEMINI_OPENAI_API_BASE, |
| 513 | ) -> dict[str, Any]: |
| 514 | return { |
| 515 | "provider": GEMINI_API_PROVIDER_ID, |
| 516 | "type": "oauth", |
| 517 | "access": str(payload.get("access_token") or ""), |
| 518 | "refresh": str(payload.get("refresh_token") or fallback_refresh or ""), |
| 519 | "expires": _expires_ms(payload), |
| 520 | "id_token": str(payload.get("id_token") or ""), |
| 521 | "token_type": str(payload.get("token_type") or "Bearer"), |
| 522 | "scope": str(payload.get("scope") or ""), |
| 523 | "token_endpoint": token_endpoint, |
| 524 | "base_url": safe_api_base_url(api_base_url), |
| 525 | "client_id": client_id, |
| 526 | "client_secret": client_secret, |
| 527 | "quota_project_id": quota_project_id, |
| 528 | } |
| 529 | |
| 530 | |
| 531 | def _validate_token_payload(payload: dict[str, Any], *, require_refresh: bool) -> None: |
| 532 | if not isinstance(payload, dict): |
| 533 | raise ProviderError("Google Gemini API token endpoint returned a malformed response.", code="token_malformed", status=502) |
| 534 | missing = [] |
| 535 | if not str(payload.get("access_token") or ""): |
| 536 | missing.append("access_token") |
| 537 | if require_refresh and not str(payload.get("refresh_token") or ""): |
| 538 | missing.append("refresh_token") |
| 539 | if missing: |
| 540 | raise ProviderError( |
| 541 | f"Google Gemini API token response is missing: {', '.join(missing)}", |
| 542 | code="token_malformed", |
| 543 | status=502, |
| 544 | ) |
| 545 | |
| 546 | |
| 547 | def safe_api_base_url(value: Any) -> str: |
| 548 | text = str(value or "").strip().rstrip("/") |
| 549 | if not text: |
| 550 | return GEMINI_OPENAI_API_BASE |
| 551 | parsed = urlparse(text) |
| 552 | host = (parsed.hostname or "").lower() |
| 553 | if parsed.scheme == "https" and host == "generativelanguage.googleapis.com": |
| 554 | return text |
| 555 | return GEMINI_OPENAI_API_BASE |
| 556 | |
| 557 | |
| 558 | def _gemini_headers(auth: dict[str, Any]) -> dict[str, str]: |
| 559 | headers = { |
| 560 | "Accept": "application/json", |
| 561 | "Authorization": f'Bearer {str(auth.get("access") or "")}', |
| 562 | } |
| 563 | quota_project_id = str(auth.get("quota_project_id") or "").strip() |
| 564 | if quota_project_id: |
| 565 | headers["x-goog-user-project"] = quota_project_id |
| 566 | return headers |
| 567 | |
| 568 | |
| 569 | def _client_config(data: dict[str, Any], cfg: dict[str, Any]) -> dict[str, str]: |
| 570 | client_id = str(data.get("client_id") or cfg.get("client_id") or "").strip() |
| 571 | client_secret = str(data.get("client_secret") or cfg.get("client_secret") or "").strip() |
| 572 | quota_project_id = str(data.get("quota_project_id") or cfg.get("quota_project_id") or "").strip() |
| 573 | if not client_id or not client_secret: |
| 574 | raise ProviderError( |
| 575 | "Configure a Google OAuth client ID and client secret before connecting Gemini API OAuth.", |
| 576 | code="missing_oauth_client", |
| 577 | ) |
| 578 | return { |
| 579 | "client_id": client_id, |
| 580 | "client_secret": client_secret, |
| 581 | "quota_project_id": quota_project_id, |
| 582 | } |
| 583 | |
| 584 | |
| 585 | def _redirect_uri(request: Any, callback_path: str) -> str: |
| 586 | origin = "" |
| 587 | if request is not None: |
| 588 | origin = (getattr(request, "headers", {}).get("Origin") or "").rstrip("/") |
| 589 | if not _is_local_origin(origin): |
| 590 | origin = getattr(request, "url_root", "").rstrip("/") |
| 591 | return f"{origin}{callback_path}" |
| 592 | |
| 593 | |
| 594 | def _is_local_origin(origin: str) -> bool: |
| 595 | if not origin: |
| 596 | return False |
| 597 | return ( |
| 598 | origin.startswith("http://localhost:") |
| 599 | or origin == "http://localhost" |
| 600 | or origin.startswith("http://127.0.0.1:") |
| 601 | or origin == "http://127.0.0.1" |
| 602 | or origin.startswith("http://[::1]:") |
| 603 | or origin == "http://[::1]" |
| 604 | ) |
| 605 | |
| 606 | |
| 607 | def _validate_google_token_endpoint(value: str) -> None: |
| 608 | parsed = urlparse(value) |
| 609 | host = (parsed.hostname or "").lower() |
| 610 | if parsed.scheme != "https" or host != "oauth2.googleapis.com": |
| 611 | raise ProviderError( |
| 612 | "Google Gemini API OAuth token endpoint is invalid.", |
| 613 | code="invalid_token_endpoint", |
| 614 | status=502, |
| 615 | ) |
| 616 | |
| 617 | |
| 618 | def _account_label(auth: dict[str, Any]) -> str: |
| 619 | claims = _jwt_claims(str(auth.get("id_token") or "")) |
| 620 | return str(claims.get("email") or auth.get("account_label") or "Google Gemini API") |
| 621 | |
| 622 | |
| 623 | def _jwt_claims(token: str) -> dict[str, Any]: |
| 624 | parts = token.split(".") |
| 625 | if len(parts) < 2: |
| 626 | return {} |
| 627 | try: |
| 628 | payload = parts[1] + "=" * (-len(parts[1]) % 4) |
| 629 | decoded = base64.urlsafe_b64decode(payload.encode("utf-8")) |
| 630 | parsed = json.loads(decoded.decode("utf-8")) |
| 631 | except Exception: |
| 632 | return {} |
| 633 | return parsed if isinstance(parsed, dict) else {} |
| 634 | |
| 635 | |
| 636 | def _codex_helper(): |
| 637 | import importlib |
| 638 | |
| 639 | return importlib.import_module("plugins._oauth.helpers.codex") |
| 640 | |
| 641 | |
| 642 | def _gemini_api_config() -> dict[str, Any]: |
| 643 | try: |
| 644 | from plugins._oauth.helpers.config import gemini_api_config |
| 645 | |
| 646 | return gemini_api_config() |
| 647 | except ModuleNotFoundError as exc: |
| 648 | if exc.name and exc.name.startswith("plugins._oauth"): |
| 649 | raise |
| 650 | return { |
| 651 | "enabled": True, |
| 652 | "client_id": "", |
| 653 | "client_secret": "", |
| 654 | "scopes": [ |
| 655 | "openid", |
| 656 | "email", |
| 657 | "profile", |
| 658 | "https://www.googleapis.com/auth/cloud-platform", |
| 659 | "https://www.googleapis.com/auth/generative-language.retriever", |
| 660 | ], |
| 661 | "quota_project_id": "", |
| 662 | "api_base_url": GEMINI_OPENAI_API_BASE, |
| 663 | "proxy_base_path": "/oauth/gemini-api", |
| 664 | "callback_path": "/oauth/gemini-api/callback", |
| 665 | } |