improve websearch api

Author: LostRuins

koboldcpp.py

@@ -1276,16 +1276,47 @@ def websearch(query):
         return []
     import urllib.parse
     import urllib.request
+    import difflib
     from html.parser import HTMLParser
     num_results = 3
     searchresults = []
+
+    def fetch_searched_webpage(url):
+        try:
+            req = urllib.request.Request(url, headers={'User-Agent': 'Mozilla/5.0'})
+            with urllib.request.urlopen(req) as response:
+                html_content = response.read().decode('utf-8', errors='ignore')
+                return html_content
+        except Exception as e:
+            print(f"Error fetching text from URL {url}: {e}")
+            return ""
+
+    class VisibleTextParser(HTMLParser):
+        def __init__(self):
+            super().__init__()
+            self.texts = []
+            self.is_script_or_style = False
+        def handle_starttag(self, tag, attrs):
+            if tag in {'script', 'style'}:
+                self.is_script_or_style = True
+        def handle_endtag(self, tag):
+            if tag in {'script', 'style'}:
+                self.is_script_or_style = False
+        def handle_data(self, data):
+            if not self.is_script_or_style and data.strip():
+                self.texts.append(data.strip())
+        def get_text(self):
+            return ' '.join(self.texts)
+
     class ExtractResultsParser(HTMLParser):
         def __init__(self):
             super().__init__()
-            self.results = []
+            self.titles = []
+            self.urls = []
+            self.descs = []
             self.recordingTitle = False
+            self.recordingUrl = False
             self.recordingDesc = False
-            self.currentrytxt = ""
             self.currsegmenttxt = ""
 
         def handle_starttag(self, tag, attrs):
@@ -1294,10 +1325,9 @@ def handle_starttag(self, tag, attrs):
                 for attr_name, attr_value in attrs:
                     if not self.recordingTitle and attr_name == "class" and "result__a" in attr_value.split():
                         self.recordingTitle = True
-                        self.currentrytxt = ""
                         self.currsegmenttxt = ""
-                    if not self.recordingTitle and attr_name == "class" and "result__url" in attr_value.split():
-                        self.recordingTitle = True
+                    if not self.recordingUrl and attr_name == "class" and "result__url" in attr_value.split():
+                        self.recordingUrl = True
                         self.currsegmenttxt = ""
                     if not self.recordingDesc and attr_name == "class" and "result__snippet" in attr_value.split():
                         self.recordingDesc = True
@@ -1306,30 +1336,57 @@ def handle_starttag(self, tag, attrs):
         def handle_endtag(self, tag):
             if tag == "a" and self.recordingTitle:
                 self.recordingTitle = False
-                self.currentrytxt += self.currsegmenttxt.strip() + "\n"
+                self.titles.append(self.currsegmenttxt.strip())
+                self.currsegmenttxt = ""
+            if tag == "a" and self.recordingUrl:
+                self.recordingUrl = False
+                self.urls.append(f"https://{self.currsegmenttxt.strip()}")
                 self.currsegmenttxt = ""
             if tag == "a" and self.recordingDesc:
                 self.recordingDesc = False
-                self.currentrytxt += self.currsegmenttxt.strip()
+                self.descs.append(self.currsegmenttxt.strip())
                 self.currsegmenttxt = ""
-                if self.currentrytxt != "":
-                    self.results.append(self.currentrytxt.strip())
-                    self.currentrytxt = ""
 
         def handle_data(self, data):
-            if self.recordingTitle or self.recordingDesc:
+            if self.recordingTitle or self.recordingDesc or self.recordingUrl:
                 self.currsegmenttxt += data
 
     encoded_query = urllib.parse.quote(query)
     search_url = f"https://html.duckduckgo.com/html/?q={encoded_query}"
 
     try:
-        req = urllib.request.Request(search_url, headers={'User-Agent': 'Mozilla/5.0'})
-        with urllib.request.urlopen(req) as response:
-            search_html = response.read().decode('utf-8', errors='ignore')
-            parser = ExtractResultsParser()
-            parser.feed(search_html)
-            searchresults = parser.results[:num_results]
+        search_html = fetch_searched_webpage(search_url)
+        parser = ExtractResultsParser()
+        parser.feed(search_html)
+        titles = parser.titles[:num_results]
+        searchurls = parser.urls[:num_results]
+        descs = parser.descs[:num_results]
+        for i in range(len(descs)):
+            # dive into the results to try and get even more details
+            title = titles[i]
+            url = searchurls[i]
+            desc = descs[i]
+            pagedesc = ""
+            try:
+                desclen = len(desc)
+                html_content = fetch_searched_webpage(url)
+                parser2 = VisibleTextParser()
+                parser2.feed(html_content)
+                scraped = parser2.get_text().strip()
+                s = difflib.SequenceMatcher(None, scraped.lower(), desc.lower())
+                matches = s.find_longest_match(0, len(scraped), 0, desclen)
+                if matches.size > 100 and desclen-matches.size < 50: #good enough match
+                    # expand description by some chars both sides
+                    expandamtbefore = 250
+                    expandamtafter = 600
+                    startpt = matches.a - expandamtbefore
+                    startpt = 0 if startpt < 0 else startpt
+                    endpt =  matches.a + expandamtafter + desclen
+                    pagedesc = scraped[startpt:endpt]
+            except Exception:
+                pass
+            searchresults.append({"title":title,"url":url,"desc":desc,"content":pagedesc})
+
     except Exception as e:
         print(f"Error fetching URL {search_url}: {e}")
         return ""