[ckan#3656] Simplify logic for setting logo image

ckan/logic/action/update.py

@@ -1271,23 +1271,12 @@ def config_option_update(context, data_dict):
         model.Session.rollback()
         raise ValidationError(errors)
 
-    image_in_ckan = False
-    public_path = config.get('ckan.static_files', 'public')
-    ckan_images_path = os.path.abspath(os.path.join(os.path.dirname(__file__),
-                                       '..', '..', public_path, 'base',
-                                                    'images'))
-
     for key, value in data.iteritems():
 
         # Set full Logo url
-        if key == 'ckan.site_logo' and value and not value.startswith('http'):
-            if os.path.isfile('{0}/{1}'.format(ckan_images_path, value)):
-                image_in_ckan = True
-
-            if image_in_ckan:
-                image_path = 'base/images/'
-            else:
-                image_path = 'uploads/admin/'
+        if key == 'ckan.site_logo' and value and not value.startswith('http')\
+                and not value.startswith('/'):
+            image_path = 'uploads/admin/'
 
             value = h.url_for_static('{0}{1}'.format(image_path, value))
 

ckan/public/base/javascript/modules/image-upload.js

@@ -129,6 +129,11 @@ this.ckan.module('image-upload', function($) {
      * Returns String.
      */
     _fileNameFromUpload: function(url) {
+      // If it's a local CKAN image return the entire URL.
+      if (/^\/base\/images/.test(url)) {
+        return url;
+      }
+
       // remove fragment (#)
       url = url.substring(0, (url.indexOf("#") === -1) ? url.length : url.indexOf("#"));
       // remove query string