update bing engines and fix bing_news

searx/engines/bing.py

+## Bing (Web)
+# 
+# @website     https://www.bing.com
+# @provide-api yes (http://datamarket.azure.com/dataset/bing/search), max. 5000 query/month
+# 
+# @using-api   no (because of query limit)
+# @results     HTML (using search portal)
+# @stable      no (HTML can change)
+# @parse       url, title, content
+#
+# @todo        publishedDate
+
 from urllib import urlencode
 from cgi import escape
 from lxml import html
 
-base_url = 'http://www.bing.com/'
-search_string = 'search?{query}&first={offset}'
+# engine dependent config
+categories = ['general']
 paging = True
 language_support = True
 
+# search-url
+base_url = 'https://www.bing.com/'
+search_string = 'search?{query}&first={offset}'
 
+# do search-request
 def request(query, params):
     offset = (params['pageno'] - 1) * 10 + 1
+
     if params['language'] == 'all':
         language = 'en-US'
     else:
         language = params['language'].replace('_', '-')
+
     search_path = search_string.format(
         query=urlencode({'q': query, 'setmkt': language}),
         offset=offset)
 
     params['cookies']['SRCHHPGUSR'] = \
         'NEWWND=0&NRSLT=-1&SRCHLANG=' + language.split('-')[0]
-    #if params['category'] == 'images':
-    #    params['url'] = base_url + 'images/' + search_path
+
     params['url'] = base_url + search_path
     return params
 
 
+# get response from search-request
 def response(resp):
     results = []
+
     dom = html.fromstring(resp.content)
+
+    # parse results
     for result in dom.xpath('//div[@class="sa_cc"]'):
         link = result.xpath('.//h3/a')[0]
         url = link.attrib.get('href')
         title = ' '.join(link.xpath('.//text()'))
         content = escape(' '.join(result.xpath('.//p//text()')))
-        results.append({'url': url, 'title': title, 'content': content})
 
+        # append result
+        results.append({'url': url, 
+                        'title': title, 
+                        'content': content})
+
+    # return results if something is found
     if results:
         return results
 
+    # parse results again if nothing is found yet
     for result in dom.xpath('//li[@class="b_algo"]'):
         link = result.xpath('.//h2/a')[0]
         url = link.attrib.get('href')
         title = ' '.join(link.xpath('.//text()'))
         content = escape(' '.join(result.xpath('.//p//text()')))
-        results.append({'url': url, 'title': title, 'content': content})
+
+        # append result
+        results.append({'url': url, 
+                        'title': title, 
+                        'content': content})
+
+    # return results
     return results

searx/engines/bing_news.py

+## Bing (News)
+# 
+# @website     https://www.bing.com/news
+# @provide-api yes (http://datamarket.azure.com/dataset/bing/search), max. 5000 query/month
+# 
+# @using-api   no (because of query limit)
+# @results     HTML (using search portal)
+# @stable      no (HTML can change)
+# @parse       url, title, content, publishedDate
+
 from urllib import urlencode
 from cgi import escape
 from lxml import html
+from datetime import datetime, timedelta
+from dateutil import parser
+import re
 
+# engine dependent config
 categories = ['news']
-
-base_url = 'http://www.bing.com/'
-search_string = 'news/search?{query}&first={offset}'
 paging = True
 language_support = True
 
+# search-url
+base_url = 'https://www.bing.com/'
+search_string = 'news/search?{query}&first={offset}'
 
+# do search-request
 def request(query, params):
     offset = (params['pageno'] - 1) * 10 + 1
+
     if params['language'] == 'all':
         language = 'en-US'
     else:
         language = params['language'].replace('_', '-')
+
     search_path = search_string.format(
         query=urlencode({'q': query, 'setmkt': language}),
         offset=offset)
 
     params['cookies']['SRCHHPGUSR'] = \
         'NEWWND=0&NRSLT=-1&SRCHLANG=' + language.split('-')[0]
-    #if params['category'] == 'images':
-    # params['url'] = base_url + 'images/' + search_path
+
     params['url'] = base_url + search_path
     return params
 
 
+# get response from search-request
 def response(resp):
     results = []
+
     dom = html.fromstring(resp.content)
-    for result in dom.xpath('//div[@class="sa_cc"]'):
-        link = result.xpath('.//h3/a')[0]
+
+    # parse results
+    for result in dom.xpath('//div[@class="sn_r"]'):
+        link = result.xpath('.//div[@class="newstitle"]/a')[0]
         url = link.attrib.get('href')
         title = ' '.join(link.xpath('.//text()'))
-        content = escape(' '.join(result.xpath('.//p//text()')))
-        results.append({'url': url, 'title': title, 'content': content})
+        content = escape(' '.join(result.xpath('.//div[@class="sn_txt"]/div//span[@class="sn_snip"]//text()')))
+        
+        # parse publishedDate
+        publishedDate = escape(' '.join(result.xpath('.//div[@class="sn_txt"]/div//span[@class="sn_ST"]//span[@class="sn_tm"]//text()')))
 
-    if results:
-        return results
+        if re.match("^[0-9]+ minute(s|) ago$", publishedDate):
+            timeNumbers = re.findall(r'\d+', publishedDate)
+            publishedDate = datetime.now()\
+                - timedelta(minutes=int(timeNumbers[0]))
+        elif re.match("^[0-9]+ hour(s|) ago$", publishedDate):
+            timeNumbers = re.findall(r'\d+', publishedDate)
+            publishedDate = datetime.now()\
+                - timedelta(hours=int(timeNumbers[0]))
+        elif re.match("^[0-9]+ hour(s|), [0-9]+ minute(s|) ago$", publishedDate):
+            timeNumbers = re.findall(r'\d+', publishedDate)
+            publishedDate = datetime.now()\
+                - timedelta(hours=int(timeNumbers[0]))\
+                - timedelta(minutes=int(timeNumbers[1]))
+        else:
+            publishedDate = parser.parse(publishedDate)  
 
-    for result in dom.xpath('//li[@class="b_algo"]'):
-        link = result.xpath('.//h2/a')[0]
-        url = link.attrib.get('href')
-        title = ' '.join(link.xpath('.//text()'))
-        content = escape(' '.join(result.xpath('.//p//text()')))
-        results.append({'url': url, 'title': title, 'content': content})
+        # append result
+        results.append({'url': url, 
+                        'title': title, 
+                        'publishedDate': publishedDate,
+                        'content': content})
+
+    # return results
     return results