Translate English and Chinese mutually using https://translate.google.com.hk

goslate.py

#!/usr/bin/env python
# coding:utf-8

"""
Translate English and Chinese mutually using https://translate.google.com.hk

create on '11/5/15 5:07 PM'
"""
import gzip
import httplib
import sys
import urllib
import cStringIO
import re
import codecs

__author__ = 'hejunjie'

URL = 'translate.google.com.hk'
HEADERS = {
    'accept': '*/*',
    'accept-encoding': 'gzip, deflate, sdch',
    'accept-language': 'en-US,en;q=0.8,zh-CN;q=0.6,zh;q=0.4',
    'referer': 'https//translate.google.com.hk/?hl=en&tab=TT',
    'user-agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 '
                  '(KHTML, like Gecko) Ubuntu Chromium/45.0.2454.101 '
                  'Chrome/45.0.2454.101 Safari/537.36'
}


def translate(q):
    method = 'GET' if len(q) <= 100 else 'POST'
    try:
        q.encode('ASCII')
    except UnicodeEncodeError:
        tl = 'en'
        sl = 'zh-CN'
        q = q.encode('UTF-8')
    else:
        tl = 'zh-CN'
        sl = 'en'

    PARAMS = [
        ('client', 't'),
        ('sl', sl),
        ('tl', tl),
        ('ie', 'UTF-8'),
        ('oi', 'UTF-8'),
        ('q', q),
        ('dt', 't'),
        # ('hl', 'en'),
        # ('dt', 'bd'),
        # ('dt', 'ex'),
        # ('dt', 'ld'),
        # ('dt', 'md'),
        # ('dt', 'qca'),
        # ('dt', 'rw'),
        # ('dt', 'rm'),
        # ('dt', 'ss'),
        # ('dt', 'at'),
        ('srcrom', '0'),
        ('ssel', '0'),
        ('tsel', '4'),
        ('kc', '0'),
        ('tk', '462264|76913'),
    ]
    param = urllib.urlencode(PARAMS)
    conn = httplib.HTTPSConnection(URL)
    if method == 'POST':
        conn.request(method, '/translate_a/single', param, HEADERS)
    else:
        conn.request(method, '/translate_a/single?%s' % param, headers=HEADERS)
    res = conn.getresponse()
    if res.status != 200:
        conn.close()
        return None
    else:
        unziped = gzip.GzipFile(fileobj=cStringIO.StringIO(res.read()))
        content = unziped.read().decode('utf-8')
        trans = cStringIO.StringIO()
        am = re.findall(r'\["(.*?)",.*?,.*?,.*?,.*?\],', content, re.S)
        for m in am:
            m = m.replace('\\"', '"')
            trans.write(m.encode('utf-8'))
        v = trans.getvalue()
        trans.close()
        conn.close()
        return v


if __name__ == '__main__':
    if len(sys.argv) == 2:
        print translate(sys.argv[1].decode('utf-8'))
    elif len(sys.argv) == 3 and sys.argv[1] == '-f':
        with codecs.open(sys.argv[2], 'r', 'utf-8') as f:
            print translate(f.read())
    else:
        print 'Usage:goslate.py <language_source>'
        print '      goslate.py -f <path2file>(encoded with utf-8)'