improve search and display a message if IP is blocked by qwant

theHarvester/discovery/qwantsearch.py

@@ -29,20 +29,14 @@ class SearchQwant:
         return max(start, 0)
 
     async def do_search(self) -> None:
-        headers = {
-            'Host': "api.qwant.com",
-            'User-agent': Core.get_user_agent()
-        }
+        headers = {'User-agent': Core.get_user_agent()}
 
         start = self.get_start_offset()
         limit = self.limit + start
         step = 10
-        # https://help.qwant.com/help/qwant-search/searching/refine-search-with-operators/
-        # during my tests I had better results with this operator
-        word = f"«@{self.word}»"
 
         api_urls = [
-            f"https://api.qwant.com/api/search/web?count=10&offset={str(offset)}&q={word}&t=web&r=US&device=desktop&safesearch=0&locale=en_US&uiv=4"
+            f"https://api.qwant.com/api/search/web?count=10&offset={str(offset)}&q={self.word}&t=web&r=US&device=desktop&safesearch=0&locale=en_US&uiv=4"
             for offset in range(start, limit, step)
         ]
 
@@ -52,13 +46,17 @@ class SearchQwant:
             try:
                 json_response = json.loads(response)
             except JSONDecodeError:
+                # sometimes error 502 from server
                 continue
 
             try:
                 response_items = json_response['data']['result']['items']
             except KeyError:
-                # {"status":"error","error":24}
-                # https://www.qwant.com/anti_robot
+                if json_response.get("status", None) \
+                        and json_response.get("error", None) == 24:
+                    # https://www.qwant.com/anti_robot
+                    print("Rate limit reached - IP Blocked until captcha is solved")
+                    break
                 continue
 
             for response_item in response_items: