custom-plugins: add simple license extension to list custom licenses.

custom-plugins/licenses_ext/__init__.py

@@ -0,0 +1,53 @@
+# mediagoblin/plugins/licenses_ext/__init__.py
+
+# Luis Guzman <ark@switnet.org>
+# GNU AGPLv3 or later
+
+"""
+MediaGoblin plugin: licenses_ext
+Adds licenses defined on the configuration file.
+"""
+
+from mediagoblin import mg_globals
+from mediagoblin.tools import licenses
+from mediagoblin.tools.licenses import License
+
+def setup_plugin(plugin_config=None):
+    # If plugin_config is empty, it is retrieved from mg_globals.global_config
+    if not plugin_config:
+        plugin_config = (
+            mg_globals.global_config
+            .get('plugins', {})
+            .get('mediagoblin.plugins.licenses_ext', {})
+            )
+
+    for key, value in plugin_config.items():
+        if not key.startswith("license_"):
+            continue
+        # If the value is a list (as in the global configuration)
+        if isinstance(value, list):
+            try:
+                abbrev, name, url = value
+            except Exception as e:
+                print("Error parsing (string) in", key, e)
+                continue
+        # If it happens to be a string, we split it
+        elif isinstance(value, str):
+            try:
+                abbrev, name, url = [x.strip() for x in value.split(",", 2)]
+            except Exception as e:
+                print("Error parsing (string) in", key, e)
+                continue
+        else:
+            print("Unknown type for", key, ":", type(value))
+            continue
+
+        new_license = License(abbrev, name, url)
+        licenses.SORTED_LICENSES.append(new_license)
+        licenses.SUPPORTED_LICENSES[new_license.uri] = new_license
+
+# Register the hook so that MediaGoblin calls setup_plugin() during the
+# setup phase.
+hooks = {
+    'setup': setup_plugin,
+}