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| 1 | +/** |
| 2 | + * @author Vigneshwaran Odayappan <vickyokrm@gmail.com> |
| 3 | + */ |
| 4 | + |
| 5 | +import {TranslationProviderRegistry, AutoTranslate} from 'meteor/rocketchat:autotranslate'; |
| 6 | +import {RocketChat} from 'meteor/rocketchat:lib'; |
| 7 | +import _ from 'underscore'; |
| 8 | + |
| 9 | +/** |
| 10 | + * Represents DEEPL translate class |
| 11 | + * @class |
| 12 | + * @augments AutoTranslate |
| 13 | + */ |
| 14 | +class DeeplAutoTranslate extends AutoTranslate { |
| 15 | + /** |
| 16 | + * setup api reference to deepl translate to be used as message translation provider. |
| 17 | + * @constructor |
| 18 | + */ |
| 19 | + constructor() { |
| 20 | + super(); |
| 21 | + this.name = 'deepl-translate'; |
| 22 | + this.apiEndPointUrl = 'https://api.deepl.com/v1/translate'; |
| 23 | + // self register & de-register callback - afterSaveMessage based on the activeProvider |
| 24 | + RocketChat.settings.get('AutoTranslate_ServiceProvider', (key, value) => { |
| 25 | + if (this.name === value) { |
| 26 | + this._registerAfterSaveMsgCallBack(this.name); |
| 27 | + } else { |
| 28 | + this._unRegisterAfterSaveMsgCallBack(this.name); |
| 29 | + } |
| 30 | + }); |
| 31 | + } |
| 32 | + |
| 33 | + /** |
| 34 | + * Returns metadata information about the service provide |
| 35 | + * @private implements super abstract method. |
| 36 | + * @return {object} |
| 37 | + */ |
| 38 | + _getProviderMetadata() { |
| 39 | + return { |
| 40 | + name: this.name, |
| 41 | + displayName: TAPi18n.__('AutoTranslate_DeepL'), |
| 42 | + settings: this._getSettings() |
| 43 | + }; |
| 44 | + } |
| 45 | + |
| 46 | + /** |
| 47 | + * Returns necessary settings information about the translation service provider. |
| 48 | + * @private implements super abstract method. |
| 49 | + * @return {object} |
| 50 | + */ |
| 51 | + _getSettings() { |
| 52 | + return { |
| 53 | + apiKey: this.apiKey, |
| 54 | + apiEndPointUrl: this.apiEndPointUrl |
| 55 | + }; |
| 56 | + } |
| 57 | + |
| 58 | + /** |
| 59 | + * Returns supported languages for translation by the active service provider. |
| 60 | + * @private implements super abstract method. |
| 61 | + * @param {string} target |
| 62 | + * @returns {object} code : value pair |
| 63 | + */ |
| 64 | + _getSupportedLanguages(target) { |
| 65 | + if (this.autoTranslateEnabled && this.apiKey) { |
| 66 | + if (this.supportedLanguages[target]) { |
| 67 | + return this.supportedLanguages[target]; |
| 68 | + } |
| 69 | + return this.supportedLanguages[target] = [ |
| 70 | + { |
| 71 | + 'language': 'EN', |
| 72 | + 'name': TAPi18n.__('English', { lng: target }) |
| 73 | + }, |
| 74 | + { |
| 75 | + 'language': 'DE', |
| 76 | + 'name': TAPi18n.__('German', { lng: target }) |
| 77 | + }, |
| 78 | + { |
| 79 | + 'language': 'FR', |
| 80 | + 'name': TAPi18n.__('French', { lng: target }) |
| 81 | + }, |
| 82 | + { |
| 83 | + 'language': 'ES', |
| 84 | + 'name': TAPi18n.__('Spanish', { lng: target }) |
| 85 | + }, |
| 86 | + { |
| 87 | + 'language': 'IT', |
| 88 | + 'name': TAPi18n.__('Italian', { lng: target }) |
| 89 | + }, |
| 90 | + { |
| 91 | + 'language': 'NL', |
| 92 | + 'name': TAPi18n.__('Dutch', { lng: target }) |
| 93 | + }, |
| 94 | + { |
| 95 | + 'language': 'PL', |
| 96 | + 'name': TAPi18n.__('Polish', { lng: target }) |
| 97 | + } |
| 98 | + ]; |
| 99 | + } |
| 100 | + } |
| 101 | + |
| 102 | + /** |
| 103 | + * Send Request REST API call to the service provider. |
| 104 | + * Returns translated message for each target language in target languages. |
| 105 | + * @private |
| 106 | + * @param {object} targetMessage |
| 107 | + * @param {object} targetLanguages |
| 108 | + * @returns {object} translations: Translated messages for each language |
| 109 | + */ |
| 110 | + _sendRequestTranslateMessage(targetMessage, targetLanguages) { |
| 111 | + const translations = {}; |
| 112 | + let msgs = targetMessage.msg.split('\n'); |
| 113 | + msgs = msgs.map(msg => encodeURIComponent(msg)); |
| 114 | + const query = `text=${ msgs.join('&text=') }`; |
| 115 | + const supportedLanguages = this._getSupportedLanguages('en'); |
| 116 | + targetLanguages.forEach(language => { |
| 117 | + if (language.indexOf('-') !== -1 && !_.findWhere(supportedLanguages, {language})) { |
| 118 | + language = language.substr(0, 2); |
| 119 | + } |
| 120 | + let result; |
| 121 | + try { |
| 122 | + result = HTTP.get(this.apiEndPointUrl, { |
| 123 | + params: { |
| 124 | + auth_key: this.apiKey, |
| 125 | + target_lang: language |
| 126 | + }, query |
| 127 | + }); |
| 128 | + } catch (e) { |
| 129 | + console.log('Error translating message', e); |
| 130 | + } |
| 131 | + if (result.statusCode === 200 && result.data && result.data.translations && Array.isArray(result.data.translations) && result.data.translations.length > 0) { |
| 132 | + // store translation only when the source and target language are different. |
| 133 | + if (result.data.translations.map(translation => translation.detected_source_language).join() !== language) { |
| 134 | + const txt = result.data.translations.map(translation => translation.text).join('\n'); |
| 135 | + translations[language] = this.deTokenize(Object.assign({}, targetMessage, {msg: txt})); |
| 136 | + } |
| 137 | + } |
| 138 | + }); |
| 139 | + return translations; |
| 140 | + } |
| 141 | + |
| 142 | + /** |
| 143 | + * Returns translated message attachment description in target languages. |
| 144 | + * @private |
| 145 | + * @param {object} attachment |
| 146 | + * @param {object} targetLanguages |
| 147 | + * @returns {object} translated messages for each target language |
| 148 | + */ |
| 149 | + _sendRequestTranslateMessageAttachments(attachment, targetLanguages) { |
| 150 | + const translations = {}; |
| 151 | + const query = `text=${ encodeURIComponent(attachment.description || attachment.text) }`; |
| 152 | + const supportedLanguages = this._getSupportedLanguages('en'); |
| 153 | + targetLanguages.forEach(language => { |
| 154 | + if (language.indexOf('-') !== -1 && !_.findWhere(supportedLanguages, {language})) { |
| 155 | + language = language.substr(0, 2); |
| 156 | + } |
| 157 | + let result; |
| 158 | + try { |
| 159 | + result = HTTP.get(this.apiEndPointUrl, { |
| 160 | + params: { |
| 161 | + auth_key: this.apiKey, |
| 162 | + target_lang: language |
| 163 | + }, query |
| 164 | + }); |
| 165 | + } catch (e) { |
| 166 | + console.log('Error translating message attachment', e); |
| 167 | + } |
| 168 | + if (result.statusCode === 200 && result.data && result.data.translations && Array.isArray(result.data.translations) && result.data.translations.length > 0) { |
| 169 | + if (result.data.translations.map(translation => translation.detected_source_language).join() !== language) { |
| 170 | + translations[language] = result.data.translations.map(translation => translation.text).join('\n'); |
| 171 | + } |
| 172 | + } |
| 173 | + }); |
| 174 | + return translations; |
| 175 | + } |
| 176 | +} |
| 177 | + |
| 178 | + |
| 179 | +Meteor.startup(() => { |
| 180 | + TranslationProviderRegistry.registerProvider(new DeeplAutoTranslate()); |
| 181 | + RocketChat.AutoTranslate = TranslationProviderRegistry.getActiveServiceProvider(); |
| 182 | +}); |
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