eric6/Plugins/UiExtensionPlugins/Translator/TranslatorEngines/GoogleV1Engine.py

Sat, 27 Feb 2021 12:08:23 +0100

author
Detlev Offenbach <detlev@die-offenbachs.de>
date
Sat, 27 Feb 2021 12:08:23 +0100
changeset 8138
169e65a6787c
parent 7923
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child 8218
7c09585bd960
permissions
-rw-r--r--

Shell: added functionality to show a prompt when the main client process has exited (e.g. a script ended).

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1 # -*- coding: utf-8 -*-
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2
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3 # Copyright (c) 2014 - 2021 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 V1 translation engine.
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8 """
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9
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10 import json
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11 import re
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12
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13 from PyQt5.QtCore import QByteArray, QUrl, QTimer
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14
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15 import Utilities
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16
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17 from .TranslationEngine import TranslationEngine
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18
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19
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20 class GoogleV1Engine(TranslationEngine):
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21 """
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22 Class implementing the translation engine for the old Google
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23 translation service.
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24 """
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25 TranslatorUrl = "https://translate.googleapis.com/translate_a/single"
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26 TextToSpeechUrl = "https://translate.google.com/translate_tts"
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27 TextToSpeechLimit = 100
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28
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29 def __init__(self, plugin, parent=None):
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30 """
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31 Constructor
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32
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33 @param plugin reference to the plugin object (TranslatorPlugin)
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34 @param parent reference to the parent object (QObject)
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35 """
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36 super(GoogleV1Engine, self).__init__(plugin, parent)
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37
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38 QTimer.singleShot(0, self.availableTranslationsLoaded.emit)
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39
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40 def engineName(self):
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41 """
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42 Public method to return the name of the engine.
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43
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44 @return engine name (string)
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45 """
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46 return "googlev1"
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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 (list of string)
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53 """
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54 return ["ar", "be", "bg", "bs", "ca", "cs", "da", "de", "el", "en",
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55 "es", "et", "fi", "fr", "ga", "gl", "hi", "hr", "hu", "id",
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56 "is", "it", "iw", "ja", "ka", "ko", "lt", "lv", "mk", "mt",
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57 "nl", "no", "pl", "pt", "ro", "ru", "sk", "sl", "sq", "sr",
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58 "sv", "th", "tl", "tr", "uk", "vi", "zh-CN", "zh-TW",
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59 ]
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60
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61 def hasTTS(self):
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62 """
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63 Public method indicating the Text-to-Speech capability.
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64
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65 @return flag indicating the Text-to-Speech capability (boolean)
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66 """
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67 return False # doesn't work reliably
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68
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69 def getTranslation(self, requestObject, text, originalLanguage,
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70 translationLanguage):
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71 """
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72 Public method to translate the given text.
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73
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74 @param requestObject reference to the request object
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75 (TranslatorRequest)
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76 @param text text to be translated (string)
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77 @param originalLanguage language code of the original (string)
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78 @param translationLanguage language code of the translation (string)
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79 @return tuple of translated text (string) and flag indicating
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80 success (boolean)
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81 """
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82 params = QByteArray(
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83 "client=gtx&sl={0}&tl={1}&dt=t&dt=bd&ie=utf-8&oe=utf-8&q=".format(
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84 originalLanguage, translationLanguage).encode("utf-8"))
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85 encodedText = (
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86 QByteArray(Utilities.html_encode(text).encode("utf-8"))
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87 .toPercentEncoding()
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88 )
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89 request = params + encodedText
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90 response, ok = requestObject.post(QUrl(self.TranslatorUrl), request)
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91 if ok:
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92 try:
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93 # clean up the response
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94 response = re.sub(r',{2,}', ',', response)
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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 V1: Invalid response received"), False
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98
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99 if isinstance(responseDict, dict):
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100 sentences = responseDict["sentences"]
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101 result = ""
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102 for sentence in sentences:
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103 result += sentence["trans"].replace("\n", "<br/>")
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104
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105 if (
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106 self.plugin.getPreferences("GoogleEnableDictionary") and
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107 "dict" in responseDict
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108 ):
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109 dictionary = responseDict["dict"]
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110 for value in dictionary:
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111 result += "<hr/><u><b>{0}</b> - {1}</u><br/>".format(
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112 text, value["pos"])
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113 for entry in value["entry"]:
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114 if "previous_word" in entry:
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115 previous = entry["previous_word"] + " "
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116 else:
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117 previous = ""
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118 word = entry["word"]
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119 reverse = entry["reverse_translation"]
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120 result += "<br/>{0}<b>{1}</b> - {2}".format(
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121 previous, word, ", ".join(reverse))
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122 if value != dictionary[-1]:
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123 result += "<br/>"
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124 elif isinstance(responseDict, list):
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125 sentences = responseDict[0]
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126 result = (
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127 "".join([s[0] for s in sentences]).replace("\n", "<br/>")
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128 )
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129 if (
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130 self.plugin.getPreferences("GoogleEnableDictionary") and
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131 len(responseDict) > 2
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132 ):
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133 if not responseDict[1]:
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134 result = self.tr("Google V1: No translation found.")
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135 ok = False
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136 else:
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137 for wordTypeList in responseDict[1]:
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138 result += "<hr/><u><b>{0}</b> - {1}</u>".format(
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139 wordTypeList[0], wordTypeList[-2])
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140 for wordsList in wordTypeList[2]:
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141 reverse = wordsList[0]
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142 words = wordsList[1]
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143 result += "<br/><b>{0}</b> - {1}".format(
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144 reverse, ", ".join(words))
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145 else:
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146 result = responseDict
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147 else:
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148 result = response
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149 return result, ok
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150
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151 def getTextToSpeechData(self, requestObject, text, language):
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152 """
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153 Public method to pronounce the given text.
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154
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155 @param requestObject reference to the request object
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156 (TranslatorRequest)
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parents:
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157 @param text text to be pronounced (string)
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158 @param language language code of the text (string)
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159 @return tuple with pronounce data (QByteArray) or error string (string)
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parents:
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160 and success flag (boolean)
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parents:
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161 """
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162 text = text.split("\n\n", 1)[0]
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163 if len(text) > self.TextToSpeechLimit:
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164 return (self.tr("Google V1: Only texts up to {0} characters are"
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parents: 7360
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165 " allowed.")
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166 .format(self.TextToSpeechLimit), False)
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167
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168 url = QUrl(self.TextToSpeechUrl +
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169 "?client=tw-ob&ie=utf-8&tl={0}&q={1}".format(
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170 language, text))
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171 return requestObject.get(url)

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