feat: Added Yandex Translator (#1652)

README.md

@@ -57,6 +57,7 @@
 | **File Association and Open With**      | Quickly open files in Readest in your file browser with one-click.                             | ✅         |
 | **Sync across Platforms**               | Synchronize book files, reading progress, notes, and bookmarks across all supported platforms. | ✅         |
 | **Translate with DeepL**                | From a single sentence to the entire book—translate instantly with DeepL.                      | ✅         |
+| **Translate with Yandex**               | Instantly translate text or books using Yandex Translate.                                      | ✅         |
 | **Text-to-Speech (TTS) Support**        | Enjoy smooth, multilingual narration—even within a single book.                                | ✅         |
 | **Library Management**                  | Organize, sort, and manage your entire ebook library.                                          | ✅         |
 | **Code Syntax Highlighting**            | Read software manuals with rich coloring of code examples.                                     | ✅         |

apps/readest-app/src-tauri/capabilities/default.json

@@ -68,6 +68,9 @@
         {
           "url": "https://edge.microsoft.com"
         },
+        {
+          "url": "https://translate.toil.cc"
+        },
         {
           "url": "https://*.microsofttranslator.com"
         },

apps/readest-app/src-tauri/tauri.conf.json

@@ -15,7 +15,7 @@
     "security": {
       "csp": {
         "default-src": "'self' 'unsafe-inline' blob: data: customprotocol: asset: http://asset.localhost ipc: http://ipc.localhost",
-        "connect-src": "'self' blob: data: asset: http://asset.localhost ipc: http://ipc.localhost https://*.sentry.io https://*.posthog.com https://*.deepl.com https://*.wikipedia.org https://*.wiktionary.org https://*.supabase.co https://*.readest.com wss://speech.platform.bing.com https://*.cloudflarestorage.com https://translate.googleapis.com https://*.microsofttranslator.com https://edge.microsoft.com https://*.googleusercontent.com",
+        "connect-src": "'self' blob: data: asset: http://asset.localhost ipc: http://ipc.localhost https://*.sentry.io https://*.posthog.com https://*.deepl.com https://*.wikipedia.org https://*.wiktionary.org https://*.supabase.co https://*.readest.com wss://speech.platform.bing.com https://*.cloudflarestorage.com https://translate.googleapis.com https://translate.toil.cc https://*.microsofttranslator.com https://edge.microsoft.com https://*.googleusercontent.com",
         "img-src": "'self' blob: data: asset: http://asset.localhost https://*",
         "style-src": "'self' 'unsafe-inline' blob: asset: http://asset.localhost https://cdn.jsdelivr.net https://fonts.googleapis.com https://ik.imagekit.io",
         "font-src": "'self' blob: data: asset: http://asset.localhost tauri: https://db.onlinewebfonts.com https://cdn.jsdelivr.net https://fonts.gstatic.com https://ik.imagekit.io",

apps/readest-app/src/services/translators/providers/index.ts

@@ -2,6 +2,7 @@ import { TranslationProvider } from '../types';
 import { deeplProvider } from './deepl';
 import { azureProvider } from './azure';
 import { googleProvider } from './google';
+import { yandexProvider } from './yandex';
 
 function createTranslator<T extends string>(
   name: T,
@@ -18,11 +19,13 @@ function createTranslator<T extends string>(
 const deeplTranslator = createTranslator('deepl', deeplProvider);
 const azureTranslator = createTranslator('azure', azureProvider);
 const googleTranslator = createTranslator('google', googleProvider);
+const yandexTranslator = createTranslator('yandex', yandexProvider);
 
 const availableTranslators = [
   deeplTranslator,
   azureTranslator,
   googleTranslator,
+  yandexTranslator,
   // Add more translators here
 ];
 

apps/readest-app/src/services/translators/providers/yandex.ts

@@ -0,0 +1,77 @@
+import { stubTranslation as _ } from '@/utils/misc';
+import { fetch as tauriFetch } from '@tauri-apps/plugin-http';
+import { isTauriAppPlatform } from '@/services/environment';
+import { normalizeToShortLang } from '@/utils/lang';
+import { TranslationProvider } from '../types';
+
+/**
+ * Based on https://translate.toil.cc/v2/docs API specification
+ */
+async function translateSingleTextForService(
+  text: string,
+  lang: string,
+  service: string,
+): Promise<string[]> {
+  const fetchImpl = isTauriAppPlatform() ? tauriFetch : window.fetch;
+  const url = 'https://translate.toil.cc/v2/translate/';
+
+  const request = {
+    method: 'POST',
+    headers: {
+      'Content-Type': 'application/json',
+    },
+    body: JSON.stringify({
+      lang: lang,
+      service: service,
+      text: text,
+    })
+  };
+
+  const response = await fetchImpl(url, request);
+
+  if (!response.ok) {
+    const response_json = JSON.stringify(await response.json());
+    throw new Error(`${service} failed with status ${response.status}\n${text.length}\n${JSON.stringify(request)}\n${response_json}`);
+  }
+
+  const data = await response.json();
+  if (
+    data &&
+    Array.isArray(data.translations)
+  ) {
+    return data.translations;
+  } else {
+    // fallback: return original texts if translation failed
+    return [text];
+  }
+};
+
+export const yandexProvider: TranslationProvider = {
+  name: 'yandex',
+  label: _('Yandex Translate'),
+  authRequired: false,
+  translate: async (texts: string[], sourceLang: string, targetLang: string): Promise<string[]> => {
+    if (!texts.length) return [];
+
+    /**
+      Possible options:
+      - yandexcloud: often returns 500: {"error":"The text couldn't be translated, because Forbidden"}
+      - yandexgpt: often better than others
+      - yandextranslate
+      - yandexbrowser
+    */
+    const service = "yandexgpt";
+
+    // Yandex does not accept "auto" language
+    const source_lang = sourceLang == "AUTO" ? "en" : normalizeToShortLang(sourceLang).toLowerCase();
+    const target_lang = normalizeToShortLang(targetLang).toLowerCase();
+    const lang = `${source_lang}-${target_lang}`;
+
+    const responses = await Promise.all(texts.map(async text => {
+      return await translateSingleTextForService(text, lang, service)
+    }));
+
+    const translatedTexts = responses.flat();
+    return translatedTexts;
+  }
+};