[enh] add result proxy support - #707

searx/settings.yml

     default_theme : oscar # ui theme
     default_locale : "" # Default interface locale - leave blank to detect from browser information or use codes from the 'locales' config section
 
+# searx supports result proxification using an external service: https://github.com/asciimoo/morty
+# uncomment below section if you have running morty proxy
+#result_proxy:
+#    url : http://127.0.0.1:3000/
+#    key : your_morty_proxy_key
+
 outgoing: # communication with search engines
     request_timeout : 2.0 # seconds
     useragent_suffix : "" # suffix of searx_useragent, could contain informations like an email address to the administrator

searx/templates/oscar/macros.html

         <span class="label label-default">{{ engine }}</span>
     {% endfor %}
     <small>{{ result_link("https://web.archive.org/web/" + result.url, icon('link') + _('cached'), "text-info") }}</small>
+    {% if proxify %}
+    <small>{{ result_link(proxify(result.url), icon('sort') + _('proxied'), "text-info") }}</small>
+    {% endif %}
 </div>
     <div class="text-muted"><small>{{ result.pretty_url }}</small></div>
 {%- endmacro %}
         <span class="label label-default">{{ engine }}</span>
     {% endfor %}
     <small>{{ result_link("https://web.archive.org/web/" + result.url, icon('link') + _('cached'), "text-info") }}</small>
+    {% if proxify %}
+    <small>{{ result_link(proxify(result.url), icon('sort') + _('proxied'), "text-info") }}</small>
+    {% endif %}
     <div class="text-muted"><small>{{ result.pretty_url }}</small></div>
 {%- endmacro %}
 

searx/webapp.py

     return url_for(endpoint, **values)
 
 
+def proxify(url):
+    if url.startswith('//'):
+        url = 'https:' + url
+
+    if not settings.get('result_proxy'):
+        return url
+
+    h = hmac.new(settings['result_proxy']['key'], url, hashlib.sha256).hexdigest()
+
+    return '{0}?{1}'.format(settings['result_proxy']['url'],
+                            urlencode(dict(mortyurl=url.encode('utf-8'),
+                                           mortyhash=h)))
+
+
 def image_proxify(url):
 
     if url.startswith('//'):
 
     kwargs['image_proxify'] = image_proxify
 
+    kwargs['proxify'] = proxify if settings.get('result_proxy') else None
+
     kwargs['get_result_template'] = get_result_template
 
     kwargs['theme'] = get_current_theme_name(override=override_theme)