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1 # -*- coding: utf-8 -*- |
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2 |
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3 # Copyright (c) 2014 - 2022 Detlev Offenbach <detlev@die-offenbachs.de> |
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4 # |
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5 |
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6 """ |
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7 Module implementing the Google V2 translation engine. |
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8 """ |
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9 |
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10 import json |
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11 |
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12 from PyQt6.QtCore import QByteArray, QTimer, QUrl |
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13 |
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14 from .TranslationEngine import TranslationEngine |
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15 |
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16 import Utilities |
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17 |
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18 |
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19 class GoogleV2Engine(TranslationEngine): |
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20 """ |
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21 Class implementing the translation engine for the new Google |
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22 translation service. |
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23 """ |
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24 TranslatorUrl = "https://translation.googleapis.com/language/translate/v2" |
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25 |
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26 def __init__(self, plugin, parent=None): |
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27 """ |
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28 Constructor |
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29 |
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30 @param plugin reference to the plugin object |
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31 @type TranslatorPlugin |
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32 @param parent reference to the parent object |
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33 @type QObject |
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34 """ |
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35 super().__init__(plugin, parent) |
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36 |
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37 QTimer.singleShot(0, self.availableTranslationsLoaded.emit) |
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38 |
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39 def engineName(self): |
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40 """ |
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41 Public method to return the name of the engine. |
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42 |
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43 @return engine name |
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44 @rtype str |
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45 """ |
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46 return "googlev2" |
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47 |
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48 def supportedLanguages(self): |
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49 """ |
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50 Public method to get the supported languages. |
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51 |
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52 @return list of supported language codes |
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53 @rtype list of str |
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54 """ |
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55 return ["ar", "be", "bg", "bs", "ca", "cs", "da", "de", "el", "en", |
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56 "es", "et", "fi", "fr", "ga", "gl", "hi", "hr", "hu", "id", |
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57 "is", "it", "iw", "ja", "ka", "ko", "lt", "lv", "mk", "mt", |
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58 "nl", "no", "pl", "pt", "ro", "ru", "sk", "sl", "sq", "sr", |
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59 "sv", "th", "tl", "tr", "uk", "vi", "zh-CN", "zh-TW", |
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60 ] |
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61 |
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62 def getTranslation(self, requestObject, text, originalLanguage, |
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63 translationLanguage): |
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64 """ |
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65 Public method to translate the given text. |
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66 |
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67 @param requestObject reference to the request object |
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68 @type TranslatorRequest |
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69 @param text text to be translated |
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70 @type str |
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71 @param originalLanguage language code of the original |
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72 @type str |
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73 @param translationLanguage language code of the translation |
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74 @type str |
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75 @return tuple of translated text and flag indicating success |
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76 @rtype tuple of (str, bool) |
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77 """ |
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78 apiKey = self.plugin.getPreferences("GoogleV2Key") |
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79 if not apiKey: |
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80 return self.tr("Google V2: A valid Google Translate key is" |
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81 " required."), False |
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82 |
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83 params = QByteArray( |
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84 "key={2}&source={0}&target={1}&format=text&q=".format( |
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85 originalLanguage, translationLanguage, apiKey).encode("utf-8")) |
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86 encodedText = ( |
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87 QByteArray(Utilities.html_encode(text).encode("utf-8")) |
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88 .toPercentEncoding() |
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89 ) |
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90 request = params + encodedText |
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91 response, ok = requestObject.post(QUrl(self.TranslatorUrl), request) |
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92 if ok: |
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93 response = str(response, "utf-8", "replace") |
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94 try: |
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95 responseDict = json.loads(response) |
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96 except ValueError: |
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97 return self.tr("Google V2: Invalid response received"), False |
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98 |
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99 if ( |
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100 "data" not in responseDict or |
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101 "translations" not in responseDict["data"] |
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102 ): |
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103 return self.tr("Google V2: No translation available."), False |
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104 |
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105 result = "" |
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106 translations = responseDict["data"]["translations"] |
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107 for translation in translations: |
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108 result += translation["translatedText"] |
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109 if translation != translations[-1]: |
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110 result += "<br/>" |
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111 else: |
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112 result = response |
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113 return result, ok |