Addresses #320 Add video search support for Yahoo (#446)

Removed unnecessary line from google scraper

Fixed Codacy and Travis errors

Fixed last Travis error

Removed unnecessary debug print statement

Squashed the commits

app/scrapers/ask.py

@@ -9,6 +9,7 @@ def __init__(self):
         self.url = 'http://ask.com/web'
         self.defaultStart = 1
         self.startKey = 'page'
+        self.name = 'ask'
 
     def next_start(self, current_start, prev_results):
         return current_start + 1

app/scrapers/baidu.py

@@ -11,6 +11,7 @@ def __init__(self):
         self.defaultStart = 0
         self.queryKey = 'wd'
         self.startKey = 'pn'
+        self.name = 'baidu'
 
     def parse_response(self, soup):
         """ Parse the response and return set of urls

app/scrapers/bing.py

@@ -10,6 +10,7 @@ def __init__(self):
         self.url = 'http://www.bing.com/search'
         self.defaultStart = 1
         self.startKey = 'first'
+        self.name = 'bing'
 
     def parse_response(self, soup):
         """ Parses the reponse and return set of urls

app/scrapers/dailymotion.py

@@ -12,6 +12,7 @@ def __init__(self):
         self.queryKey = 'search'
         self.startKey = 'page'
         self.defaultStart = 1
+        self.name = 'dailymotion'
 
     def parse_response(self, soup):
         """ Parse the response and return set of urls

app/scrapers/duckduckgo.py

@@ -10,6 +10,7 @@ def __init__(self):
         self.url = 'https://duckduckgo.com/html'
         self.defaultStart = 0
         self.startKey = 's'
+        self.name = 'duckduckgo'
 
     def parse_response(self, soup):
         """ Parse the response and return set of urls

app/scrapers/exalead.py

@@ -10,6 +10,7 @@ def __init__(self):
         self.url = 'https://www.exalead.com/search/web/results/'
         self.defaultStart = 0
         self.startKey = 'start_index'
+        self.name = 'exalead'
 
     def parse_response(self, soup):
         """ Parse the response and return set of urls

app/scrapers/generalized.py

@@ -25,15 +25,24 @@ def get_page(self, query, startIndex=0, qtype=''):
         """ Fetch the google search results page
         Returns : Results Page
         """
+        url = self.url
+        if qtype == 'vid':
+            if self.name in ['yahoo']:
+                url = self.videoURL
+            else:
+                url = self.url
         payload = {self.queryKey: query, self.startKey: startIndex,
                    self.qtype: qtype}
-        response = requests.get(self.url, headers=self.headers, params=payload)
+        response = requests.get(url, headers=self.headers, params=payload)
         print(response.url)
         return response
 
     def parse_response(self, soup):
         raise NotImplementedError
 
+    def parse_video_response(self, soup):
+        raise NotImplementedError
+
     def next_start(self, current_start, prev_results):
         return current_start + len(prev_results)
 
@@ -48,7 +57,13 @@ def search(self, query, num_results, qtype=''):
         while (len(urls) < num_results):
             response = self.get_page(query, current_start, qtype)
             soup = BeautifulSoup(response.text, 'html.parser')
-            new_results = self.parse_response(soup)
+            if qtype == 'vid':
+                if self.name in ['yahoo']:
+                    new_results = self.parse_video_response(soup)
+                else:
+                    new_results = self.parse_response(soup)
+            else:
+                new_results = self.parse_response(soup)
             if new_results is None:
                 break
             urls.extend(new_results)

app/scrapers/google.py

@@ -11,6 +11,7 @@ def __init__(self):
         self.defaultStart = 0
         self.startKey = 'start'
         self.qtype = 'tbm'
+        self.name = 'google'
 
     def next_start(self, current_start, prev_results):
         return current_start + len(prev_results)

app/scrapers/mojeek.py

@@ -10,6 +10,7 @@ def __init__(self):
         self.url = 'https://www.mojeek.co.uk/search'
         self.defaultStart = 1
         self.startKey = 's'
+        self.name = 'mojeek'
 
     def parse_response(self, soup):
         """ Parse the response and return set of urls

app/scrapers/parsijoo.py

@@ -10,6 +10,7 @@ def __init__(self):
         self.url = 'https://parsijoo.ir/web'
         self.defaultStart = 0
         self.startKey = 'co'
+        self.name = 'parsijoo'
 
     def parse_response(self, soup):
         """ Parse the response and return set of urls

app/scrapers/quora.py

@@ -8,6 +8,7 @@ class Quora(Scraper):
     def __init__(self):
         Scraper.__init__(self)
         self.url = 'https://www.quora.com/search'
+        self.name = 'quora'
 
     def parse_response(self, soup):
         """ Parse the response and return set of urls

app/scrapers/yahoo.py

@@ -13,8 +13,10 @@ class Yahoo(Scraper):
     def __init__(self):
         Scraper.__init__(self)
         self.url = 'https://search.yahoo.com/search'
+        self.videoURL = 'https://video.search.yahoo.com/search/video'
         self.defaultStart = 1
         self.startKey = 'b'
+        self.name = 'yahoo'
 
     def parse_response(self, soup):
         """ Parse response and returns the urls
@@ -38,3 +40,24 @@ def parse_response(self, soup):
         print('Yahoo parsed: ' + str(urls))
 
         return urls
+
+    def parse_video_response(self, soup):
+        """ Parse response and returns the urls
+
+            Returns: urls (list)
+                    [[Tile1, url1], [Title2, url2], ...]
+        """
+        urls = []
+        for h in soup.findAll('li', attrs={'class': 'vr vres'}):
+            t = h.find('a', attrs={'class': 'ng'})
+            r = t.get('data-rurl')
+            titleDiv = t.find('div', attrs={'class': 'v-meta bx-bb'})
+            title = titleDiv.find('h3').getText()
+            urls.append({
+                'title': title,
+                'link': r
+            })
+
+        print('Yahoo parsed: ' + str(urls))
+
+        return urls

app/scrapers/youtube.py

@@ -9,6 +9,7 @@ def __init__(self):
         Scraper.__init__(self)
         self.url = 'https://www.youtube.com/results'
         self.queryKey = 'search_query'
+        self.name = 'youtube'
 
     def parse_response(self, soup):
         """ Parse the response and return list of urls