[fix] multilingual duckduckgo

only works if both country and language are set

1 files changed, 15 insertions, 8 deletions

diff --git a/searx/engines/duckduckgo.py b/searx/engines/duckduckgo.py
index 373ce1b2d..714c27228 100644
--- a/searx/engines/duckduckgo.py
+++ b/searx/engines/duckduckgo.py
@@ -11,8 +11,6 @@
  @parse       url, title, content
 
  @todo        rewrite to api
- @todo        language support
-              (the current used site does not support language-change)
 """
 
 from urllib import urlencode
@@ -39,13 +37,22 @@ def request(query, params):
     offset = (params['pageno'] - 1) * 30
 
     if params['language'] == 'all':
-        locale = 'en-us'
+        locale = None
     else:
-        locale = params['language'].replace('_', '-').lower()
-
-    params['url'] = url.format(
-        query=urlencode({'q': query, 'kl': locale}),
-        offset=offset)
+        locale = params['language'].split('_')
+        if len(locale) == 2:
+            # country code goes first
+            locale = locale[1].lower() + '-' + locale[0].lower()
+        else:
+            # doesn't actually do anything because ddg requires both country and language
+            locale = locale[0].lower()
+
+    if locale:
+        params['url'] = url.format(
+            query=urlencode({'q': query, 'kl': locale}), offset=offset)
+    else:
+        params['url'] = url.format(
+            query=urlencode({'q': query}), offset=offset)
 
     return params