Basic custom CSS and theme uploading features. 'local' subdir can now be customized to a distinct directory and URL path to make it easier to separate custom themes for a multi-site farm running a common code base.

Currently only one custom theme may be uploaded per site, saved with the name 'custom' and stored into the local/themes subdirectory.
Administrators can upload a .ZIP archive containing a theme through the design admin panel; its contents are validated to ensure that only legit files are saved, and a 5M size quota is enforced.
Theme upload requires the zip extension for PHP; if not present, theme uploading is disabled by default.

Uploading and the custom CSS can be controlled via $config['theme_upload']['enabled'] and $config['custom_css']['enabled'].

Configurable directory/path/server for 'local' subdirectory (currently only as used for themes; local plugins not yet switched over)

Can set $config['local']['dir'] etc; not currently exposed in the admin panels.

Per-site directories on a separate themes server could be set up such as:
  $config['local']['dir'] = '/path/to/themes/local/' . $_nickname;
  $config['local']['server'] = 'themes.example.com';
  $config['local']['path'] = '/local/' . $_nickname;
  $config['local']['ssl'] = 'never';

1 files changed, 10 insertions, 0 deletions

diff --git a/lib/action.php b/lib/action.php
index c4d9fd5cb..22ea4f275 100644
--- a/lib/action.php
+++ b/lib/action.php
@@ -233,6 +233,16 @@ class Action extends HTMLOutputter // lawsuit
                 Event::handle('EndShowDesign', array($this));
             }
             Event::handle('EndShowStyles', array($this));
+            
+            if (common_config('custom_css', 'enabled')) {
+                $css = common_config('custom_css', 'css');
+                if (Event::handle('StartShowCustomCss', array($this, &$css))) {
+                    if (trim($css) != '') {
+                        $this->style($css);
+                    }
+                    Event::handle('EndShowCustomCss', array($this));
+                }
+            }
         }
     }