translate text files with google

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EXPLANATION:

ROMANIAN: https://neculaifantanaru.com/example-python-google-translate-any-text-html-file-version-2.html
ENGLISH: https://neculaifantanaru.com/en/example-python-google-translate-any-text-html-file-version-2.html
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# TREBUIE SA FAC UN FOLDER "translated"
# -*- encoding: utf-8 -*-
'''
@File    :  google_trans.py
@Time    :  2020/5/15 9:29
@Author  :  hxluo
@Version :  1.0
@Contact :  465801795@qq.com
@Desc    :  google translate

'''
# import lib
from bs4 import BeautifulSoup
from urllib import parse
import re
import os
from bs4.formatter import HTMLFormatter
import requests
import execjs
import json
import random
import unidecode
import nltk
from nltk import tokenize
# nltk.download('punkt')

class Py4Js():

    def __init__(self):
        self.ctx = execjs.compile("""
        function TL(a) {
        var k = "";
        var b = 406644;
        var b1 = 3293161072;

        var jd = ".";
        var $b = "+-a^+6";
        var Zb = "+-3^+b+-f";

        for (var e = [], f = 0, g = 0; g < a.length; g++) {
            var m = a.charCodeAt(g);
            128 > m ? e[f++] = m : (2048 > m ? e[f++] = m >> 6 | 192 : (55296 == (m & 64512) && g + 1 < a.length && 56320 == (a.charCodeAt(g + 1) & 64512) ? (m = 65536 + ((m & 1023) << 10) + (a.charCodeAt(++g) & 1023),
            e[f++] = m >> 18 | 240,
            e[f++] = m >> 12 & 63 | 128) : e[f++] = m >> 12 | 224,
            e[f++] = m >> 6 & 63 | 128),
            e[f++] = m & 63 | 128)
        }
        a = b;
        for (f = 0; f < e.length; f++) a += e[f],
        a = RL(a, $b);
        a = RL(a, Zb);
        a ^= b1 || 0;
        0 > a && (a = (a & 2147483647) + 2147483648);
        a %= 1E6;
        return a.toString() + jd + (a ^ b)
    };

    function RL(a, b) {
        var t = "a";
        var Yb = "+";
        for (var c = 0; c < b.length - 2; c += 3) {
            var d = b.charAt(c + 2),
            d = d >= t ? d.charCodeAt(0) - 87 : Number(d),
            d = b.charAt(c + 1) == Yb ? a >>> d: a << d;
            a = b.charAt(c) == Yb ? a + d & 4294967295 : a ^ d
        }
        return a
    }
    """)

    def getTk(self, text):
        return self.ctx.call("TL", text)

class Translate_as_google(object):
    def __init__(self, to_language, this_language='auto', read=False):
        '''
            to_language:The language to be translated into
            this_language:The text to be converted, the default is auto
            read:Generate a text reading file at the specified location
        '''
        self.this_language = this_language
        self.to_language = to_language
        self.read = read

    def open_url(self, url):
        '''请求'''
        headers = {'User-Agent': 'Mozilla/5.0 (Windows NT 6.1; WOW64; rv:23.0) Gecko/20100101 Firefox/23.0'}
        req = requests.get(url=url, headers=headers , timeout=8)

        return req

    def buildUrl(self):
        '''封装请求url
            sl:The text to be converted tl:The result type of the conversion qThe text to be entered'''
        baseUrl = 'http://translate.google.cn/translate_a/single'
        baseUrl += '?client=webapp&'
        baseUrl += 'sl=%s&' % self.this_language
        baseUrl += 'tl=%s&' % self.to_language
        baseUrl += 'hl=zh-CN&'
        baseUrl += 'dt=at&'
        baseUrl += 'dt=bd&'
        baseUrl += 'dt=ex&'
        baseUrl += 'dt=ld&'
        baseUrl += 'dt=md&'
        baseUrl += 'dt=qca&'
        baseUrl += 'dt=rw&'
        baseUrl += 'dt=rm&'
        baseUrl += 'dt=ss&'
        baseUrl += 'dt=t&'
        baseUrl += 'ie=UTF-8&'
        baseUrl += 'oe=UTF-8&'
        baseUrl += 'clearbtn=1&'
        baseUrl += 'otf=1&'
        baseUrl += 'pc=1&'
        baseUrl += 'srcrom=0&'
        baseUrl += 'ssel=0&'
        baseUrl += 'tsel=0&'
        baseUrl += 'kc=2&'
        baseUrl += 'tk=' + str(self.tk) + '&'
        baseUrl += 'q=' + parse.quote(self.text)
        return baseUrl

    def read_go(self, args):
        '''Speaking interception
        upload:Download to path and file name
        return_language:Language type returned
        '''
        upload, return_language = args[0], args[1]
        read_translate_url = 'http://translate.google.cn/translate_tts?ie=UTF-8&q=%s&tl=%s&total=1&idx=0&textlen=3&tk=%s&client=webapp&prev=input' % (
            self.text, return_language, self.tk)
        data = self.open_url(read_translate_url) #Return all data requested
        with open(upload, 'wb') as f:
            f.write(data.content)

    def translate(self,text):
        '''Translation interception'''
        self.text = text
        js = Py4Js()
        self.tk = js.getTk(self.text)

        if len(self.text) > 4891:
            raise ("The length of the translation exceeds the limit！！！")
        url = self.buildUrl()
        # print(url)
        _result = self.open_url(url)
        data = _result.content.decode('utf-8')

        tmp = json.loads(data)
        jsonArray = tmp[0]
        result = None
        for jsonItem in jsonArray:
            if jsonItem[0]:
                if result:
                    result = result + " " + jsonItem[0]
                else:
                    result = jsonItem[0]
        return result

class UnsortedAttributes(HTMLFormatter):
    def attributes(self, tag):
        for k, v in tag.attrs.items():
            yield k, v

def scoate_spatii_inceput_fisier(directory):
    for filename in os.listdir('c:\\Folder3\\translated'):
        if filename.endswith(".txt"):
            with open(os.path.join(directory, filename), encoding='utf-8') as f:
                lines = f.readlines()
                lines_without_spaces = list()
                for line in lines:
                    lines_without_spaces.append(line.lstrip())
                lines_without_spaces = '\n'.join(lines_without_spaces)
                with open(os.path.join(directory, filename), 'w', encoding='utf-8') as g:
                    g.write(lines_without_spaces)

if __name__ == '__main__':

    source = 'ro' # put the language from the text file
    target = 'en' # put the language in which you want to translate
    directory = "c:\\Folder3"  #  SCHIMBA SI JOS la ultima linie directorul
    count = 0
    for filename in os.listdir(directory):
        if filename.endswith(".txt"): #or filename.endswith(".png"):
            count += 1
            print("Current file: ", filename)
            with open(os.path.join(directory, filename), encoding='utf-8') as f:
                file_text = f.read()

                # impartire in propozitii
                propozitii = tokenize.sent_tokenize(file_text)
                propozitii = [prop.strip().capitalize() for prop in propozitii]
                propozitii = [prop[:-1].strip() + prop[-1] for prop in propozitii]

                limita_caractere = 4891
                text_tradus = ''
                bucata_text = ''
                ts = Translate_as_google(target, source)

                for propozitie in propozitii:
                    if len(bucata_text) + len(propozitie) < limita_caractere:
                        if bucata_text == '':
                            bucata_text = bucata_text + propozitie
                        else:
                            bucata_text = bucata_text + ' ' + propozitie
                    else:
                        text_tradus += ts.translate(bucata_text)
                        bucata_text = ''
                if (len(bucata_text) < limita_caractere):
                    text_tradus += ts.translate(bucata_text)

                with open(directory + "\\translated" + "\\" + filename.split('.')[0] + '_{}'.format(target) + '.' + filename.split('.')[1], 'w', encoding='utf-8') as f:
                    f.write(text_tradus)
        else:
            continue

    print("Fisiere modificate: ", count)

    # scoate spatii fisiere
    scoate_spatii_inceput_fisier("c:\\Folder3\\translated")