[fix] google engine: remove <script> tags from result items

In some results, Google returns a <script> tag that must be removed before
extracting the content.

Signed-off-by: Markus Heiser <markus.heiser@darmarit.de>

searx/engines/google.py

@@ -59,11 +59,6 @@ filter_mapping = {0: 'off', 1: 'medium', 2: 'high'}
 # specific xpath variables
 # ------------------------
 
-results_xpath = './/div[contains(@jscontroller, "SC7lYd")]'
-title_xpath = './/a/h3[1]'
-href_xpath = './/a[h3]/@href'
-content_xpath = './/div[contains(@data-sncf, "1")]'
-
 # Suggestions are links placed in a *card-section*, we extract only the text
 # from the links not the links itself.
 suggestion_xpath = '//div[contains(@class, "EIaa9b")]//a'
@@ -345,22 +340,27 @@ def response(resp):
 
     # parse results
 
-    for result in eval_xpath_list(dom, results_xpath):  # pylint: disable=too-many-nested-blocks
+    for result in eval_xpath_list(dom, './/div[contains(@jscontroller, "SC7lYd")]'):
+        # pylint: disable=too-many-nested-blocks
 
         try:
-            title_tag = eval_xpath_getindex(result, title_xpath, 0, default=None)
+            title_tag = eval_xpath_getindex(result, './/a/h3[1]', 0, default=None)
             if title_tag is None:
                 # this not one of the common google results *section*
                 logger.debug('ignoring item from the result_xpath list: missing title')
                 continue
             title = extract_text(title_tag)
 
-            url = eval_xpath_getindex(result, href_xpath, 0, None)
+            url = eval_xpath_getindex(result, './/a[h3]/@href', 0, None)
             if url is None:
                 logger.debug('ignoring item from the result_xpath list: missing url of title "%s"', title)
                 continue
 
-            content_nodes = eval_xpath(result, content_xpath)
+            content_nodes = eval_xpath(result, './/div[contains(@data-sncf, "1")]')
+            for item in content_nodes:
+                for script in item.xpath(".//script"):
+                    script.getparent().remove(script)
+
             content = extract_text(content_nodes)
 
             if not content: