架设在GAE上的GTalk翻译机器人

# coding:utf-8 # # Project 'dict-icyomik@appspot.com' By: # iCyOMiK(蒋骏): http://icyomik.tk/ # David and Boyi: http://yodao-free.sourceforge.net/ # 从 Google App Engine 导入一些该程序必要的模块 from google.appengine.api import xmpp from google.appengine.api import urlfetch from google.appengine.ext import webapp from google.appengine.ext.webapp.util import run_wsgi_app # 对请求查询的语句以及从有道返回的数据进行正则处理，有以下函数： # get_elements_by_path(xml, elem), get_elements(xml, elem), get_text(xml) import re single = re.compile("^[A-Z]+$", re.IGNORECASE) textre = re.compile("\!\[CDATA\[(.*?)\]\]", re.DOTALL) def get_elements_by_path(xml, elem): if type(xml) == type(''): xml = [xml] if type(elem) == type(''): elem = elem.split('/') if (len(xml) == 0): return [] elif (len(elem) == 0): return xml elif (len(elem) == 1): result = [] for item in xml: result += get_elements(item, elem[0]) return result else: subitems = [] for item in xml: subitems += get_elements(item, elem[0]) return get_elements_by_path(subitems, elem[1:]) def get_elements(xml, elem): p = re.compile("<" + elem + ">" + "(.*?)</" + elem + ">", re.DOTALL) it = p.finditer(xml) result = [] for m in it: result.append(m.group(1)) return result def get_text(xml): match = re.search(textre, xml) if not match: return xml return match.group(1) # 以下的函数用于查询并将查询到的结果进行分析格式化 def crawl_xml(queryword): # 不是一个英文单词的时候执行翻译操作 if single.match(queryword) == None: xml = urlfetch.fetch( "http://fanyi.youdao.com/translate?doctype=xml&xmlVersion=1.3&i=%s" % urlfetch.urllib2.quote(queryword)) xml = xml.content translation = get_elements(xml, "translation") return get_text(translation[0]) # 只是一个英文单词的时候使用字典查询 else: results = '' asterisk = '-' * 25 xml = urlfetch.fetch( "http://dict.yodao.com/search?doctype=xml&xmlDetail=true&q=%s" % urlfetch.urllib2.quote(queryword)) xml = xml.content return_phrase = get_elements(xml, "return-phrase") # 如果没有查询到这个英文单词就返回下面的 if 语句 if return_phrase == []: results = ":-( _CAN NOT FIND THE WORD:_ *" \ + get_text(get_elements(xml, "original-query")[0]) \ + "* :-(" return results.strip() # 对查询到的英文单词进行格式化处理，然后返回到上层调用函数的位置 return_phrase = get_text(return_phrase[0]) phonetic_symbol = get_elements(xml, "phonetic-symbol") phonetic_symbol = get_text(phonetic_symbol[0]) results = return_phrase + ' [' + phonetic_symbol + '] ' + '\n' custom_translations = get_elements(xml, "custom-translation") for cus in custom_translations: if get_text(get_elements(cus, "type")[0]) == 'ee': break contents = get_elements_by_path(cus, "translation/content") if contents: results = results + asterisk + '\n' for content in contents[0:]: results = results + get_text(content) + '\n' for cus in custom_translations: contents = get_elements_by_path(cus, "word-forms/word-form") if contents: results = results + asterisk + '\n' for content in contents[0:]: results = results + get_text(get_elements(content, 'name')[0]) \ + ': ' + get_text(get_elements(content, 'value')[0]) + '\n' results = results + asterisk return results.strip() # 以下的类用于接收用户提交的语句和返回结果给用户 class XMPPHandler(webapp.RequestHandler): def post(self): message = xmpp.Message(self.request.POST) results = crawl_xml(message.body.encode("utf-8")) message.reply(results) # 以下语句相当于在主函数中的语句 （if __name__ == "__main__":） application = webapp.WSGIApplication([('/_ah/xmpp/message/chat/', XMPPHandler)]) run_wsgi_app(application)