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| 1 | +# Copyright 2025 Mufeed Ali |
| 2 | +# Copyright 2025 Rafael Mardojai CM |
| 3 | +# SPDX-License-Identifier: GPL-3.0-or-later |
| 4 | + |
| 5 | +from dialect.providers.base import ( |
| 6 | + ProviderCapability, |
| 7 | + ProviderFeature, |
| 8 | + ProviderLangComparison, |
| 9 | + Translation, |
| 10 | +) |
| 11 | +from dialect.providers.errors import ( |
| 12 | + APIKeyRequired, |
| 13 | + UnexpectedError, |
| 14 | +) |
| 15 | +from dialect.providers.soup import SoupProvider |
| 16 | + |
| 17 | + |
| 18 | +class Provider(SoupProvider): |
| 19 | + name = "kagi" |
| 20 | + prettyname = "Kagi Translate" |
| 21 | + |
| 22 | + capabilities = ProviderCapability.TRANSLATION |
| 23 | + features = ProviderFeature.DETECTION | ProviderFeature.API_KEY | ProviderFeature.API_KEY_REQUIRED |
| 24 | + lang_comp = ProviderLangComparison.DEEP |
| 25 | + |
| 26 | + defaults = { |
| 27 | + "instance_url": "", |
| 28 | + "api_key": "", |
| 29 | + "src_langs": ["en", "fr", "es", "de", "ja", "zh"], |
| 30 | + "dest_langs": ["fr", "es", "de", "en", "ja", "zh"], |
| 31 | + } |
| 32 | + |
| 33 | + def __init__(self, **kwargs): |
| 34 | + super().__init__(**kwargs) |
| 35 | + |
| 36 | + self.api_url = "translate.kagi.com/api" |
| 37 | + self.chars_limit = 20000 # Web UI limit |
| 38 | + |
| 39 | + @property |
| 40 | + def headers(self): |
| 41 | + return {"Content-Type": "application/json"} |
| 42 | + |
| 43 | + @property |
| 44 | + def lang_url(self): |
| 45 | + return self.format_url(self.api_url, "/list-languages", params={"token": self.api_key}) |
| 46 | + |
| 47 | + @property |
| 48 | + def translate_url(self): |
| 49 | + return self.format_url(self.api_url, "/translate", params={"token": self.api_key}) |
| 50 | + |
| 51 | + async def validate_api_key(self, key): |
| 52 | + """Validate the API key (session token)""" |
| 53 | + try: |
| 54 | + # Test session token by checking authentication status |
| 55 | + url = self.format_url(self.api_url, "/auth", params={"token": key}) |
| 56 | + response = await self.get(url, self.headers) |
| 57 | + if response and isinstance(response, dict) and response["loggedIn"] is True: |
| 58 | + return True |
| 59 | + except (APIKeyRequired, UnexpectedError): |
| 60 | + return False |
| 61 | + return False |
| 62 | + |
| 63 | + async def init_trans(self): |
| 64 | + """Initialize translation capabilities by fetching supported languages""" |
| 65 | + languages = await self.get(self.lang_url, self.headers) |
| 66 | + |
| 67 | + if languages and isinstance(languages, list): |
| 68 | + for lang in languages: |
| 69 | + # Add language with lowercase code as per Kagi API convention |
| 70 | + self.add_lang(lang["language"].lower(), lang["name"]) |
| 71 | + |
| 72 | + async def translate(self, request): |
| 73 | + """Translate text using Kagi API""" |
| 74 | + src, dest = self.denormalize_lang(request.src, request.dest) |
| 75 | + |
| 76 | + data = { |
| 77 | + "text": request.text, |
| 78 | + "source_lang": src if src != "auto" else "auto", |
| 79 | + "target_lang": dest, |
| 80 | + "skip_definition": True, # Get translation only, no definitions |
| 81 | + } |
| 82 | + |
| 83 | + response = await self.post(self.translate_url, data, self.headers) |
| 84 | + |
| 85 | + if response and isinstance(response, dict): |
| 86 | + detected = None |
| 87 | + if "detected_language" in response and response["detected_language"]: |
| 88 | + detected = response["detected_language"].get("iso") |
| 89 | + |
| 90 | + translation = Translation(response["translation"], request, detected) |
| 91 | + return translation |
| 92 | + |
| 93 | + raise UnexpectedError("Failed reading the translation data") |
| 94 | + |
| 95 | + def check_known_errors(self, status, data): |
| 96 | + """Check for known error conditions in the response""" |
| 97 | + if not data: |
| 98 | + raise UnexpectedError("Response is empty") |
| 99 | + |
| 100 | + # Check for error field in response |
| 101 | + if isinstance(data, dict) and "error" in data: |
| 102 | + error = data["error"] |
| 103 | + |
| 104 | + if any(keyword in error.lower() for keyword in ["token", "unauthorized", "authentication"]): |
| 105 | + raise APIKeyRequired(f"Invalid session token: {error}") |
| 106 | + else: |
| 107 | + raise UnexpectedError(error) |
| 108 | + |
| 109 | + # Check HTTP status codes |
| 110 | + if status == 401: |
| 111 | + raise APIKeyRequired("Unauthorized - invalid session token") |
| 112 | + elif status == 403: |
| 113 | + raise APIKeyRequired("Forbidden - session token required") |
| 114 | + elif status != 200: |
| 115 | + raise UnexpectedError(f"HTTP {status} error") |
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