diff --git a/ws.php b/ws.php
index 61bb01276..b1a6afc79 100644
--- a/ws.php
+++ b/ws.php
@@ -32,475 +32,8 @@ if ( !$conf['allow_web_services'] )
   page_forbidden('Web services are disabled');
 }
 
-/**
- * event handler that registers standard methods with the web service
- */
-function ws_addDefaultMethods( $arr )
-{
-  include_once(PHPWG_ROOT_PATH.'include/ws_functions.inc.php');
-  global $conf, $user;
-  $service = &$arr[0];
-  $service->addMethod('pwg.getVersion', 'ws_getVersion', null,
-      'retrieves the PWG version');
-	  
-  $service->addMethod('pwg.getInfos', 'ws_getInfos', null,
-      'retrieves general informations');
-
-  $service->addMethod('pwg.caddie.add', 'ws_caddie_add',
-      array(
-        'image_id'=> array( 'flags'=>WS_PARAM_FORCE_ARRAY ),
-      ),
-      'adds the elements to the caddie');
-
-  $service->addMethod('pwg.categories.getImages', 'ws_categories_getImages',
-      array(
-        'cat_id'=>array('default'=>0, 'flags'=>WS_PARAM_FORCE_ARRAY),
-        'recursive'=>array('default'=>false),
-        'per_page' => array('default'=>100, 'maxValue'=>$conf['ws_max_images_per_page']),
-        'page' => array('default'=>0),
-        'order' => array('default'=>null),
-        'f_min_rate' => array( 'default'=> null ),
-        'f_max_rate' => array( 'default'=> null ),
-        'f_min_hit' => array( 'default'=> null ),
-        'f_max_hit' => array( 'default'=> null ),
-        'f_min_date_available' => array( 'default'=> null ),
-        'f_max_date_available' => array( 'default'=> null ),
-        'f_min_date_created' => array( 'default'=> null ),
-        'f_max_date_created' => array( 'default'=> null ),
-        'f_min_ratio' => array( 'default'=> null ),
-        'f_max_ratio' => array( 'default'=> null ),
-        'f_max_level' => array( 'default'=> null ),
-      ),
-      'Returns elements for the corresponding categories.
-<br><b>cat_id</b> can be empty if <b>recursive</b> is true. Can be sent as an array.
-<br><b>order</b> comma separated fields for sorting (file,id, rating_score,...)'
-    );
-
-  $service->addMethod('pwg.categories.getList', 'ws_categories_getList',
-      array(
-        'cat_id' => array('default'=>0),
-        'recursive' => array('default'=>false),
-        'public' => array('default'=>false),
-        'tree_output' => array('default'=>false),
-        'fullname' => array('default'=>false),
-      ),
-      'retrieves a list of categories (tree_output option only compatible with json/php output format' );
-
-  $service->addMethod('pwg.getMissingDerivatives', 'ws_getMissingDerivatives',
-      array(
-        'types' => array( 'default'=>array(), 'flags'=>WS_PARAM_FORCE_ARRAY),
-        'ids' => array( 'default'=>array(), 'flags'=>WS_PARAM_FORCE_ARRAY),
-        'max_urls' => array( 'default' => 200 ),
-        'prev_page' => array( 'default'=> null),
-        'f_min_rate' => array( 'default'=> null ),
-        'f_max_rate' => array( 'default'=> null ),
-        'f_min_hit' => array( 'default'=> null ),
-        'f_max_hit' => array( 'default'=> null ),
-        'f_min_date_available' => array( 'default'=> null ),
-        'f_max_date_available' => array( 'default'=> null ),
-        'f_min_date_created' => array( 'default'=> null ),
-        'f_max_date_created' => array( 'default'=> null ),
-        'f_min_ratio' => array( 'default'=> null ),
-        'f_max_ratio' => array( 'default'=> null ),
-        'f_max_level' => array( 'default'=> null ),
-      ),
-      'retrieves a list of derivatives to build' );
-
-  $service->addMethod('pwg.images.addComment', 'ws_images_addComment',
-      array(
-        'image_id' => array(),
-        'author' => array( 'default' => is_a_guest()? 'guest':$user['username']),
-        'content' => array(),
-        'key' => array(),
-      ),
-      'add a comment to an image' );
-
-  $service->addMethod('pwg.images.getInfo', 'ws_images_getInfo',
-      array(
-        'image_id' => array(),
-        'comments_page' => array('default'=>0 ),
-        'comments_per_page' => array(
-              'default' => $conf['nb_comment_page'],
-              'maxValue' => 2*$conf['nb_comment_page'],
-            ),
-      ),
-      'retrieves information about the given photo' );
-
-  $service->addMethod('pwg.images.rate', 'ws_images_rate',
-      array(
-        'image_id' => array(),
-        'rate' =>     array(),
-      ),
-      'rate the image' );
-
-  $service->addMethod('pwg.images.search', 'ws_images_search',
-      array(
-        'query'=>array(),
-        'per_page' => array('default'=>100, 'maxValue'=>$conf['ws_max_images_per_page']),
-        'page' => array('default'=>0),
-        'order' => array('default'=>null),
-        'f_min_rate' => array( 'default'=> null ),
-        'f_max_rate' => array( 'default'=> null ),
-        'f_min_hit' => array( 'default'=> null ),
-        'f_max_hit' => array( 'default'=> null ),
-        'f_min_date_available' => array( 'default'=> null ),
-        'f_max_date_available' => array( 'default'=> null ),
-        'f_min_date_created' => array( 'default'=> null ),
-        'f_max_date_created' => array( 'default'=> null ),
-        'f_min_ratio' => array( 'default'=> null ),
-        'f_max_ratio' => array( 'default'=> null ),
-        'f_max_level' => array( 'default'=> null ),
-      ),
-      'Returns elements for the corresponding query search.'
-    );
-
-  $service->addMethod(
-    'pwg.images.setPrivacyLevel',
-    'ws_images_setPrivacyLevel',
-    array(
-      'image_id' => array('flags'=>WS_PARAM_FORCE_ARRAY),
-      'level' => array('maxValue'=>$conf['available_permission_levels']),
-      ),
-    'sets the privacy levels for the images (POST method only)'
-    );
-
-  $service->addMethod(
-    'pwg.images.setRank',
-    'ws_images_setRank',
-    array(
-      'image_id' => array(),
-      'category_id' => array(),
-      'rank' => array(),
-      ),
-    'sets the rank of a photo for a given album (POST method only, for admins)'
-    );
-
-
-  $service->addMethod('pwg.rates.delete', 'ws_rates_delete',
-    array(
-      'user_id' => array(),
-      'anonymous_id' => array( 'default'=>'' ),
-      ),
-    'deletes all rates for a user (POST method only, admins only)'
-    );
-    
-  $service->addMethod('pwg.session.getStatus', 'ws_session_getStatus', null, '' );
-  $service->addMethod('pwg.session.login', 'ws_session_login',
-    array('username', 'password'),
-    'POST method only' );
-  $service->addMethod('pwg.session.logout', 'ws_session_logout', null, '');
-
-  $service->addMethod('pwg.tags.getList', 'ws_tags_getList',
-    array('sort_by_counter' => array('default' =>false) ),
-    'retrieves a list of available tags');
-  $service->addMethod('pwg.tags.getImages', 'ws_tags_getImages',
-      array(
-        'tag_id'=>array('default'=>null, 'flags'=>WS_PARAM_FORCE_ARRAY ),
-        'tag_url_name'=>array('default'=>null, 'flags'=>WS_PARAM_FORCE_ARRAY ),
-        'tag_name'=>array('default'=>null, 'flags'=>WS_PARAM_FORCE_ARRAY ),
-        'tag_mode_and'=>array('default'=>false),
-        'per_page' => array('default'=>100, 'maxValue'=>$conf['ws_max_images_per_page']),
-        'page' => array('default'=>0),
-        'order' => array('default'=>null),
-        'f_min_rate' => array( 'default'=> null ),
-        'f_max_rate' => array( 'default'=> null ),
-        'f_min_hit' => array( 'default'=> null ),
-        'f_max_hit' => array( 'default'=> null ),
-        'f_min_date_available' => array( 'default'=> null ),
-        'f_max_date_available' => array( 'default'=> null ),
-        'f_min_date_created' => array( 'default'=> null ),
-        'f_max_date_created' => array( 'default'=> null ),
-        'f_min_ratio' => array( 'default'=> null ),
-        'f_max_ratio' => array( 'default'=> null ),
-        'f_max_level' => array( 'default'=> null ),
-      ),
-      'Returns elements for the corresponding tags. Note that tag_id, tag_url_name, tag_name an be arrays. Fill at least one of them. '
-    );
-
-  $service->addMethod(
-    'pwg.images.addChunk',
-    'ws_images_add_chunk',
-    array(
-      'data' => array(),
-      'original_sum' => array(),
-      'type' => array(),
-      'position' => array(),
-      ),
-    'POST method only. For admin only.'
-    );
-
-  $service->addMethod(
-    'pwg.images.addFile',
-    'ws_images_addFile',
-    array(
-      'image_id' => array(),
-      'type' => array(),
-      'sum' => array(),
-      ),
-    'Add or update a file for an existing photo. pwg.images.addChunk must have been called  before (maybe several times)'
-    );
-
-
-  $service->addMethod(
-    'pwg.images.add',
-    'ws_images_add',
-    array(
-      'file_sum' => array(),
-      'thumbnail_sum' => array('default' => null),
-      'high_sum' => array('default' => null),
-      'original_sum' => array(),
-      'original_filename' => array('default' => null),
-      'name' => array('default' => null),
-      'author' => array('default' => null),
-      'date_creation' => array('default' => null),
-      'comment' => array('default' => null),
-      'categories' => array('default' => null),
-      'tag_ids' => array('default' => null),
-      'level' => array(
-        'default' => 0,
-        'maxValue' => $conf['available_permission_levels']
-        ),
-      'check_uniqueness' => array('default' => true),
-      'image_id' => array('default' => null),
-      ),
-    'POST method only.
-<br><b>categories</b> is a string list "category_id[,rank];category_id[,rank]" The rank is optional and is equivalent to "auto" if not given.'
-    );
-
-  $service->addMethod(
-    'pwg.images.addSimple',
-    'ws_images_addSimple',
-    array(
-      'category' => array('default' => null),
-      'name' => array('default' => null),
-      'author' => array('default' => null),
-      'comment' => array('default' => null),
-      'level' => array(
-        'default' => 0,
-        'maxValue' => $conf['available_permission_levels']
-        ),
-      'tags' => array('default' => null, 'flags' => WS_PARAM_ACCEPT_ARRAY),
-      'image_id' => array('default' => null),
-      ),
-    'POST method only.<br>Use the <b>image</b> field for uploading file.<br>Set the form encoding to "form-data"<br><b>category</b> is the numeric identifier of the destination category.<br>You can update an existing photo if you define an existing image_id.'
-    );
-
-  $service->addMethod(
-    'pwg.images.delete',
-    'ws_images_delete',
-    array(
-      'image_id'=>array('default'=>0),
-      'pwg_token' => array(),
-      ),
-    'Delete photos. You can give several image_ids, comma separated'
-    );
-
-  $service->addMethod(
-    'pwg.categories.getAdminList',
-    'ws_categories_getAdminList',
-    array(),
-    'administration method only'
-    );
-
-  $service->addMethod(
-    'pwg.categories.add',
-    'ws_categories_add',
-    array(
-      'name' => array(),
-      'parent' => array('default' => null),
-      'comment' => array('default' => null),
-      'visible' => array('default' => null),
-      'status' => array('default' => null),
-      'commentable' => array('default' => 'true'),
-      ),
-    'administration method only'
-    );
-
-  $service->addMethod(
-    'pwg.categories.delete',
-    'ws_categories_delete',
-    array(
-      'category_id'=>array('default'=>0),
-      'pwg_token' => array(),
-      'photo_deletion_mode' => array('default' => 'delete_orphans'),
-      ),
-    'Delete categories. You can give several category_ids, comma separated.
-<br><b>photo_deletion_mode</b> can be "no_delete" (may create orphan photos), "delete_orphans" (default mode, only deletes photos linked to no other album) or "force_delete" (delete all photos, even those linked to other albums)'
-    );
-
-  $service->addMethod(
-    'pwg.categories.move',
-    'ws_categories_move',
-    array(
-      'category_id'=>array('default'=>0),
-      'parent'=>array('default'=>0),
-      'pwg_token' => array(),
-      ),
-    'Move categories. You can give several category_ids, comma separated. Set parent as 0 to move to gallery root. Only virtual categories can be moved.'
-    );
-
-  $service->addMethod(
-    'pwg.categories.setRepresentative',
-    'ws_categories_setRepresentative',
-    array(
-      'category_id'=>array('default'=>0),
-      'image_id'=>array('default'=>0),
-      ),
-    'Set the representative photo for an album. The photo doesn\'t have to belong to the album. POST method only. Administration method only.'
-    );
-
-  $service->addMethod(
-    'pwg.tags.getAdminList',
-    'ws_tags_getAdminList',
-    array(),
-    'administration method only'
-    );
-
-  $service->addMethod(
-    'pwg.tags.add',
-    'ws_tags_add',
-    array(
-      'name' => array(),
-      ),
-    'administration method only'
-    );
-
-  $service->addMethod(
-    'pwg.images.exist',
-    'ws_images_exist',
-    array(
-      'md5sum_list'=> array('default' => null),
-      'filename_list' => array('default' => null),
-      ),
-    'check existence of a photo list'
-    );
-
-  $service->addMethod(
-    'pwg.images.checkFiles',
-    'ws_images_checkFiles',
-    array(
-      'image_id' => array(),
-      'thumbnail_sum' => array('default' => null),
-      'file_sum' => array('default' => null),
-      'high_sum' => array('default' => null),
-      ),
-    'check if you have updated version of your files for a given photo, for each requested file type, the answer can be "missing", "equals" or "differs"'
-    );
-
-  $service->addMethod(
-    'pwg.images.checkUpload',
-    'ws_images_checkUpload',
-    null,
-    'check if Piwigo is ready for upload'
-    );
-
-  $service->addMethod(
-    'pwg.images.setInfo',
-    'ws_images_setInfo',
-    array(
-      'image_id' => array(),
-
-      'file' => array('default' => null),
-      'name' => array('default' => null),
-      'author' => array('default' => null),
-      'date_creation' => array('default' => null),
-      'comment' => array('default' => null),
-      'categories' => array('default' => null),
-      'tag_ids' => array('default' => null),
-      'level' => array(
-        'default' => null,
-        'maxValue' => $conf['available_permission_levels']
-        ),
-      'single_value_mode' => array('default' => 'fill_if_empty'),
-      'multiple_value_mode' => array('default' => 'append'),
-      ),
-    'POST method only. Admin only
-<br><b>categories</b> is a string list "category_id[,rank];category_id[,rank]" The rank is optional and is equivalent to "auto" if not given.
-<br><b>single_value_mode</b> can be "fill_if_empty" (only use the input value if the corresponding values is currently empty) or "replace" (overwrite any existing value) and applies to single values properties like name/author/date_creation/comment
-<br><b>multiple_value_mode</b> can be "append" (no change on existing values, add the new values) or "replace" and applies to multiple values properties like tag_ids/categories'
-    );
-
-  $service->addMethod(
-    'pwg.categories.setInfo',
-    'ws_categories_setInfo',
-    array(
-      'category_id' => array(),
-
-      'name' => array('default' => null),
-      'comment' => array('default' => null),
-      ),
-    'POST method only.'
-    );
-  
-  $service->addMethod(
-    'pwg.plugins.getList',
-    'ws_plugins_getList',
-    array(),
-    'get the list of plugin with id, name, version, state and description
-<br>administration status required'
-    );
-
-  $service->addMethod(
-    'pwg.plugins.performAction',
-    'ws_plugins_performAction',
-    array(
-      'action' => array(),
-      'plugin' => array(),
-      'pwg_token' => array(),
-      ),
-    'install/activate/deactivate/uninstall/delete a plugin
-<br>administration status required'
-    );
-
-  $service->addMethod(
-    'pwg.themes.performAction',
-    'ws_themes_performAction',
-    array(
-      'action' => array(),
-      'theme' => array(),
-      'pwg_token' => array(),
-      ),
-    'activate/deactivate/delete/set_default a theme<br>administration status required'
-    );
-
-  $service->addMethod(
-    'pwg.extensions.update',
-    'ws_extensions_update',
-    array(
-      'type' => array(),
-      'id' => array(),
-      'revision'=> array(),
-      'pwg_token' => array(),
-    ),
-    'Update an extension. Webmaster only.
-<br>Parameter type must be "plugins", "languages" or "themes".'
-  );
-
-  $service->addMethod(
-    'pwg.extensions.ignoreUpdate',
-    'ws_extensions_ignoreupdate',
-    array(
-      'type' => array('default'=>null),
-      'id' => array('default'=>null),
-      'reset' => array('default'=>null),
-      'pwg_token' => array(),
-    ),
-    'Ignore an extension if it need update.
-<br>Parameter type must be "plugins", "languages" or "themes".
-<br>If reset parameter is true, all ignored extensions will be reinitilized.'
-  );
-
-  $service->addMethod(
-    'pwg.extensions.checkUpdates',
-    'ws_extensions_checkupdates',
-    array(),
-    'Check if piwigo or extensions are up to date.'
-  );
-}
-
 add_event_handler('ws_add_methods', 'ws_addDefaultMethods');
 
-
 add_event_handler('ws_invoke_allowed', 'ws_isInvokeAllowed', EVENT_HANDLER_PRIORITY_NEUTRAL, 3);
 
 $requestFormat = 'rest';
@@ -559,4 +92,413 @@ if (!is_null($responseFormat))
 set_make_full_url();
 $service->run();
 
+
+/**
+ * event handler that registers standard methods with the web service
+ */
+function ws_addDefaultMethods( $arr )
+{
+  global $conf, $user;
+  $service = &$arr[0];
+  
+  include_once(PHPWG_ROOT_PATH.'include/ws_functions.inc.php');
+  
+  $service->addMethod('pwg.getVersion', 'ws_getVersion',
+      null,
+      'retrieves the PWG version'
+    );
+	  
+  $service->addMethod('pwg.getInfos', 'ws_getInfos',
+      null,
+      'retrieves general informations'
+    );
+
+  $service->addMethod('pwg.caddie.add', 'ws_caddie_add',
+      array(
+        'image_id'=> array('flags'=>WS_PARAM_FORCE_ARRAY),
+        ),
+      'adds the elements to the caddie'
+    );
+
+  $service->addMethod('pwg.categories.getImages', 'ws_categories_getImages',
+      array(
+        'cat_id' =>     array('default'=>0, 
+                              'flags'=>WS_PARAM_FORCE_ARRAY),
+        'recursive' =>  array('default'=>false ),
+        'per_page' =>   array('default'=>100, 
+                              'maxValue'=>$conf['ws_max_images_per_page']),
+        'page' =>       array('default'=>0),
+        'order' =>      array('default'=>null),
+        'f_min_rate' => array('default'=>null),
+        'f_max_rate' => array('default'=>null),
+        'f_min_hit' =>  array('default'=>null),
+        'f_max_hit' =>  array('default'=>null),
+        'f_min_date_available' => array('default'=>null),
+        'f_max_date_available' => array('default'=>null),
+        'f_min_date_created' =>   array('default'=>null),
+        'f_max_date_created' =>   array('default'=>null),
+        'f_min_ratio' => array('default'=>null),
+        'f_max_ratio' => array('default'=>null),
+        'f_max_level' => array('default'=>null),
+        ),
+      'Returns elements for the corresponding categories.
+<br><b>cat_id</b> can be empty if <b>recursive</b> is true. Can be sent as an array.
+<br><b>order</b> comma separated fields for sorting (file,id, rating_score,...)'
+    );
+
+  $service->addMethod('pwg.categories.getList', 'ws_categories_getList',
+      array(
+        'cat_id' =>       array('default'=>0),
+        'recursive' =>    array('default'=>false),
+        'public' =>       array('default'=>false),
+        'tree_output' =>  array('default'=>false),
+        'fullname' =>     array('default'=>false),
+        ),
+      'retrieves a list of categories (tree_output option only compatible with json/php output format'
+    );
+
+  $service->addMethod('pwg.getMissingDerivatives', 'ws_getMissingDerivatives',
+      array(
+        'types' =>      array('default'=>array(),
+                              'flags'=>WS_PARAM_FORCE_ARRAY),
+        'ids' =>        array('default'=>array(),
+                              'flags'=>WS_PARAM_FORCE_ARRAY),
+        'max_urls' =>   array('default'=>200),
+        'prev_page' =>  array('default'=>null),
+        'f_min_rate' => array('default'=>null),
+        'f_max_rate' => array('default'=>null),
+        'f_min_hit' =>  array('default'=>null),
+        'f_max_hit' =>  array('default'=>null),
+        'f_min_date_available' => array('default'=>null),
+        'f_max_date_available' => array('default'=>null),
+        'f_min_date_created' =>   array('default'=>null),
+        'f_max_date_created' =>   array('default'=>null),
+        'f_min_ratio' => array('default'=>null),
+        'f_max_ratio' => array('default'=>null),
+        'f_max_level' => array('default'=>null),
+        ),
+      'retrieves a list of derivatives to build'
+    );
+
+  $service->addMethod('pwg.images.addComment', 'ws_images_addComment',
+      array(
+        'image_id' => array(),
+        'author' =>   array('default'=>is_a_guest()?'guest':$user['username']),
+        'content' =>  array(),
+        'key' =>      array(),
+        ),
+      'add a comment to an image'
+    );
+
+  $service->addMethod('pwg.images.getInfo', 'ws_images_getInfo',
+      array(
+        'image_id' =>           array(),
+        'comments_page' =>      array('default'=>0 ),
+        'comments_per_page' =>  array('default' =>  $conf['nb_comment_page'],
+                                      'maxValue' => 2*$conf['nb_comment_page']),
+        ),
+      'retrieves information about the given photo'
+    );
+
+  $service->addMethod('pwg.images.rate', 'ws_images_rate',
+      array('image_id', 'rate'),
+      'rate the image'
+    );
+
+  $service->addMethod('pwg.images.search', 'ws_images_search',
+      array(
+        'query' =>      array(),
+        'per_page' =>   array('default'=>100, 
+                              'maxValue'=>$conf['ws_max_images_per_page']),
+        'page' =>       array('default'=>0),
+        'order' =>      array('default'=>null),
+        'f_min_rate' => array('default'=>null),
+        'f_max_rate' => array('default'=>null),
+        'f_min_hit' =>  array('default'=>null),
+        'f_max_hit' =>  array('default'=>null),
+        'f_min_date_available' => array('default'=>null),
+        'f_max_date_available' => array('default'=>null),
+        'f_min_date_created' =>   array('default'=>null),
+        'f_max_date_created' =>   array('default'=>null),
+        'f_min_ratio' => array('default'=>null),
+        'f_max_ratio' => array('default'=>null),
+        'f_max_level' => array('default'=>null),
+        ),
+      'Returns elements for the corresponding query search.'
+    );
+
+  $service->addMethod('pwg.images.setPrivacyLevel', 'ws_images_setPrivacyLevel',
+      array(
+        'image_id' => array('flags'=>WS_PARAM_FORCE_ARRAY),
+        'level' =>    array('maxValue'=>$conf['available_permission_levels']),
+        ),
+      'sets the privacy levels for the images (POST method only)'
+    );
+
+  $service->addMethod('pwg.images.setRank', 'ws_images_setRank',
+      array('image_id', 'category_id', 'rank'),
+      'sets the rank of a photo for a given album (POST method only, for admins)'
+    );
+
+  $service->addMethod('pwg.rates.delete', 'ws_rates_delete',
+      array(
+        'user_id' =>      array(),
+        'anonymous_id' => array('default'=>null),
+        ),
+      'deletes all rates for a user (POST method only, admins only)'
+    );
+
+  $service->addMethod('pwg.session.getStatus', 'ws_session_getStatus', null, '');
+
+  $service->addMethod('pwg.session.login', 'ws_session_login',
+      array('username', 'password'),
+      'POST method only'
+    );
+
+  $service->addMethod('pwg.session.logout', 'ws_session_logout', null, '');
+
+  $service->addMethod('pwg.tags.getList', 'ws_tags_getList',
+      array(
+        'sort_by_counter' => array('default' =>false),
+        ),
+      'retrieves a list of available tags'
+    );
+
+  $service->addMethod('pwg.tags.getImages', 'ws_tags_getImages',
+      array(
+        'tag_id' =>       array('default'=>null,
+                                'flags'=>WS_PARAM_FORCE_ARRAY),
+        'tag_url_name' => array('default'=>null,
+                                'flags'=>WS_PARAM_FORCE_ARRAY),
+        'tag_name' =>     array('default'=>null,
+                                'flags'=>WS_PARAM_FORCE_ARRAY),
+        'tag_mode_and' => array('default'=>false),
+        'per_page' =>     array('default'=>100,
+                                'maxValue'=>$conf['ws_max_images_per_page']),
+        'page' =>         array('default'=>0),
+        'order' =>        array('default'=>null),
+        'f_min_rate' =>   array('default'=>null),
+        'f_max_rate' =>   array('default'=>null),
+        'f_min_hit' =>    array('default'=>null),
+        'f_max_hit' =>    array('default'=>null),
+        'f_min_date_available' => array('default'=>null),
+        'f_max_date_available' => array('default'=>null),
+        'f_min_date_created' =>   array('default'=>null),
+        'f_max_date_created' =>   array('default'=>null),
+        'f_min_ratio' => array('default'=>null),
+        'f_max_ratio' => array('default'=>null),
+        'f_max_level' => array('default'=>null),
+        ),
+      'Returns elements for the corresponding tags. Note that tag_id, tag_url_name, tag_name an be arrays. Fill at least one of them. '
+    );
+
+  $service->addMethod('pwg.images.addChunk', 'ws_images_add_chunk',
+      array('data', 'original_sum', 'type', 'position'),
+      'POST method only. For admin only.'
+    );
+
+  $service->addMethod('pwg.images.addFile', 'ws_images_addFile',
+      array('image_id', 'type', 'sum'),
+      'Add or update a file for an existing photo. pwg.images.addChunk must have been called  before (maybe several times)'
+    );
+
+
+  $service->addMethod('pwg.images.add', 'ws_images_add',
+      array(
+        'file_sum' =>           array(),
+        'thumbnail_sum' =>      array('default'=>null),
+        'high_sum' =>           array('default'=>null),
+        'original_sum' =>       array(),
+        'original_filename' =>  array('default'=>null),
+        'name' =>               array('default'=>null),
+        'author' =>             array('default'=>null),
+        'date_creation' =>      array('default'=>null),
+        'comment' =>            array('default'=>null),
+        'categories' =>         array('default'=>null),
+        'tag_ids' =>            array('default'=>null),
+        'level' =>              array('default'=>0,
+                                      'maxValue'=>$conf['available_permission_levels']),
+        'check_uniqueness' =>   array('default'=>true),
+        'image_id' =>           array('default'=>null),
+        ),
+      'POST method only.
+<br><b>categories</b> is a string list "category_id[,rank];category_id[,rank]"
+The rank is optional and is equivalent to "auto" if not given.'
+    );
+
+  $service->addMethod('pwg.images.addSimple', 'ws_images_addSimple',
+      array(
+        'category' => array('default'=>null),
+        'name' =>     array('default'=>null),
+        'author' =>   array('default'=>null),
+        'comment' =>  array('default'=>null),
+        'level' =>    array('default'=>0,
+                            'maxValue'=>$conf['available_permission_levels']),
+        'tags' =>     array('default'=>null,
+                            'flags'=>WS_PARAM_ACCEPT_ARRAY),
+        'image_id' => array('default'=>null),
+        ),
+      'POST method only.<br>Use the <b>image</b> field for uploading file.
+<br>Set the form encoding to "form-data"<br><b>category</b> is the numeric identifier of the destination category.
+<br>You can update an existing photo if you define an existing image_id.'
+    );
+
+  $service->addMethod('pwg.images.delete', 'ws_images_delete',
+      array(
+        'image_id' =>   array('default'=>0),
+        'pwg_token' =>  array(),
+        ),
+      'Delete photos. You can give several image_ids, comma separated'
+    );
+
+  $service->addMethod('pwg.categories.getAdminList', 'ws_categories_getAdminList',
+      null,
+      'administration method only'
+    );
+
+  $service->addMethod('pwg.categories.add', 'ws_categories_add',
+      array(
+        'name' =>         array(),
+        'parent' =>       array('default'=>null),
+        'comment' =>      array('default'=>null),
+        'visible' =>      array('default'=>null),
+        'status' =>       array('default'=>null),
+        'commentable' =>  array('default'=>'true'),
+        ),
+      'administration method only'
+    );
+
+  $service->addMethod('pwg.categories.delete', 'ws_categories_delete',
+      array(
+        'category_id'=>           array('default'=>0),
+        'pwg_token' =>            array(),
+        'photo_deletion_mode' =>  array('default'=>'delete_orphans'),
+        ),
+      'Delete categories. You can give several category_ids, comma separated.
+<br><b>photo_deletion_mode</b> can be "no_delete" (may create orphan photos), "delete_orphans"
+(default mode, only deletes photos linked to no other album) or "force_delete" (delete all photos, even those linked to other albums)'
+    );
+
+  $service->addMethod('pwg.categories.move', 'ws_categories_move',
+      array(
+        'category_id' =>  array('default'=>0),
+        'parent' =>       array('default'=>0),
+        'pwg_token' =>    array(),
+        ),
+      'Move categories. You can give several category_ids, comma separated. Set parent as 0 to move to gallery root. Only virtual categories can be moved.'
+    );
+
+  $service->addMethod('pwg.categories.setRepresentative', 'ws_categories_setRepresentative',
+      array(
+        'category_id' =>  array('default'=>0),
+        'image_id' =>     array('default'=>0),
+        ),
+      'Set the representative photo for an album. The photo doesn\'t have to belong to the album. POST method only. Administration method only.'
+    );
+
+  $service->addMethod('pwg.tags.getAdminList', 'ws_tags_getAdminList',
+      null,
+      'administration method only'
+    );
+
+  $service->addMethod('pwg.tags.add', 'ws_tags_add',
+      array('name'),
+      'administration method only'
+    );
+
+  $service->addMethod('pwg.images.exist', 'ws_images_exist',
+      array(
+        'md5sum_list' =>    array('default'=>null),
+        'filename_list' =>  array('default'=>null),
+        ),
+      'check existence of a photo list'
+    );
+
+  $service->addMethod('pwg.images.checkFiles', 'ws_images_checkFiles',
+      array(
+        'image_id' =>       array(),
+        'thumbnail_sum' =>  array('default'=>null),
+        'file_sum' =>       array('default'=>null),
+        'high_sum' =>       array('default'=>null),
+        ),
+      'check if you have updated version of your files for a given photo, for each requested file type, the answer can be "missing", "equals" or "differs"'
+    );
+
+  $service->addMethod('pwg.images.checkUpload', 'ws_images_checkUpload',
+      null,
+      'check if Piwigo is ready for upload'
+    );
+
+  $service->addMethod('pwg.images.setInfo', 'ws_images_setInfo',
+      array(
+        'image_id' =>       array(),
+        'file' =>           array('default'=>null),
+        'name' =>           array('default'=>null),
+        'author' =>         array('default'=>null),
+        'date_creation' =>  array('default'=>null),
+        'comment' =>        array('default'=>null),
+        'categories' =>     array('default'=>null),
+        'tag_ids' =>        array('default'=>null),
+        'level' =>          array('default'=>null,
+                                  'maxValue'=>$conf['available_permission_levels']),
+        'single_value_mode' =>    array('default'=>'fill_if_empty'),
+        'multiple_value_mode' =>  array('default'=>'append'),
+        ),
+      'POST method only. Admin only
+<br><b>categories</b> is a string list "category_id[,rank];category_id[,rank]" The rank is optional and is equivalent to "auto" if not given.
+<br><b>single_value_mode</b> can be "fill_if_empty" (only use the input value if the corresponding values is currently empty) or "replace"
+(overwrite any existing value) and applies to single values properties like name/author/date_creation/comment
+<br><b>multiple_value_mode</b> can be "append" (no change on existing values, add the new values) or "replace" and applies to multiple values properties like tag_ids/categories'
+    );
+
+  $service->addMethod('pwg.categories.setInfo', 'ws_categories_setInfo',
+      array(
+        'category_id' =>  array(),
+        'name' =>         array('default'=>null),
+        'comment' =>      array('default'=>null),
+        ),
+      'POST method only.'
+    );
+  
+  $service->addMethod('pwg.plugins.getList', 'ws_plugins_getList',
+      null,
+      'Admin only
+<br>get the list of plugin with id, name, version, state and description'
+    );
+
+  $service->addMethod('pwg.plugins.performAction', 'ws_plugins_performAction',
+      array('action', 'plugin', 'pwg_token'),
+      'Admin only
+<br>install/activate/deactivate/uninstall/delete a plugin'
+    );
+
+  $service->addMethod('pwg.themes.performAction', 'ws_themes_performAction',
+      array('action', 'theme', 'pwg_token'),
+      'activate/deactivate/delete/set_default a theme<br>administration status required'
+    );
+
+  $service->addMethod('pwg.extensions.update', 'ws_extensions_update',
+      array('type', 'id', 'revision', 'pwg_token'),
+      'Update an extension. Webmaster only.
+<br>Parameter type must be "plugins", "languages" or "themes".'
+  );
+
+  $service->addMethod('pwg.extensions.ignoreUpdate', 'ws_extensions_ignoreupdate',
+      array(
+        'type' =>       array('default'=>null),
+        'id' =>         array('default'=>null),
+        'reset' =>      array('default'=>null),
+        'pwg_token' =>  array(),
+      ),
+      'Ignore an extension if it need update.
+<br>Parameter type must be "plugins", "languages" or "themes".
+<br>If reset parameter is true, all ignored extensions will be reinitilized.'
+  );
+
+  $service->addMethod('pwg.extensions.checkUpdates', 'ws_extensions_checkupdates',
+      null,
+      'Check if piwigo or extensions are up to date.'
+  );
+}
+
 ?>