[remove] remove searchcode_doc and twitter

* twitter: the API has changed. the engine needs to rewritten.
* searchcode_doc: the API about documentation doesn't exist anymore.

searx/engines/searchcode_doc.py

@@ -1,49 +0,0 @@
-"""
- Searchcode (It)
-
- @website     https://searchcode.com/
- @provide-api yes (https://searchcode.com/api/)
-
- @using-api   yes
- @results     JSON
- @stable      yes
- @parse       url, title, content
-"""
-
-from json import loads
-from urllib.parse import urlencode
-
-# engine dependent config
-categories = ['it']
-paging = True
-
-# search-url
-url = 'https://searchcode.com/'
-search_url = url + 'api/search_IV/?{query}&p={pageno}'
-
-
-# do search-request
-def request(query, params):
-    params['url'] = search_url.format(query=urlencode({'q': query}), pageno=params['pageno'] - 1)
-
-    return params
-
-
-# get response from search-request
-def response(resp):
-    results = []
-
-    search_results = loads(resp.text)
-
-    # parse results
-    for result in search_results.get('results', []):
-        href = result['url']
-        title = "[{}] {} {}".format(result['type'], result['namespace'], result['name'])
-
-        # append result
-        results.append({'url': href,
-                        'title': title,
-                        'content': result['description']})
-
-    # return results
-    return results

searx/engines/twitter.py

@@ -1,87 +0,0 @@
-"""
- Twitter (Social media)
-
- @website     https://twitter.com/
- @provide-api yes (https://dev.twitter.com/docs/using-search)
-
- @using-api   no
- @results     HTML (using search portal)
- @stable      no (HTML can change)
- @parse       url, title, content
-
- @todo        publishedDate
-"""
-
-from urllib.parse import urlencode, urljoin
-from lxml import html
-from datetime import datetime
-from searx.utils import extract_text
-
-# engine dependent config
-categories = ['social media']
-language_support = True
-
-# search-url
-base_url = 'https://twitter.com/'
-search_url = base_url + 'search?'
-
-# specific xpath variables
-results_xpath = '//li[@data-item-type="tweet"]'
-avatar_xpath = './/img[contains(@class, "avatar")]/@src'
-link_xpath = './/small[@class="time"]//a'
-title_xpath = './/span[contains(@class, "username")]'
-content_xpath = './/p[contains(@class, "tweet-text")]'
-timestamp_xpath = './/span[contains(@class,"_timestamp")]'
-
-
-# do search-request
-def request(query, params):
-    params['url'] = search_url + urlencode({'q': query})
-
-    # set language if specified
-    if params['language'] != 'all':
-        params['cookies']['lang'] = params['language'].split('-')[0]
-    else:
-        params['cookies']['lang'] = 'en'
-
-    return params
-
-
-# get response from search-request
-def response(resp):
-    results = []
-
-    dom = html.fromstring(resp.text)
-
-    # parse results
-    for tweet in dom.xpath(results_xpath):
-        try:
-            link = tweet.xpath(link_xpath)[0]
-            content = extract_text(tweet.xpath(content_xpath)[0])
-            img_src = tweet.xpath(avatar_xpath)[0]
-            img_src = img_src.replace('_bigger', '_normal')
-        except Exception:
-            continue
-
-        url = urljoin(base_url, link.attrib.get('href'))
-        title = extract_text(tweet.xpath(title_xpath))
-
-        pubdate = tweet.xpath(timestamp_xpath)
-        if len(pubdate) > 0:
-            timestamp = float(pubdate[0].attrib.get('data-time'))
-            publishedDate = datetime.fromtimestamp(timestamp, None)
-            # append result
-            results.append({'url': url,
-                            'title': title,
-                            'content': content,
-                            'img_src': img_src,
-                            'publishedDate': publishedDate})
-        else:
-            # append result
-            results.append({'url': url,
-                            'title': title,
-                            'content': content,
-                            'img_src': img_src})
-
-    # return results
-    return results

searx/settings.yml

@@ -698,10 +698,6 @@ engines:
     engine : stackoverflow
     shortcut : st
 
-  - name : searchcode doc
-    engine : searchcode_doc
-    shortcut : scd
-
   - name : searchcode code
     engine : searchcode_code
     shortcut : scc
@@ -768,10 +764,6 @@ engines:
     categories : onions
     shortcut : tch
 
-  - name : twitter
-    engine : twitter
-    shortcut : tw
-
 # maybe in a fun category
 #  - name : uncyclopedia
 #    engine : mediawiki