piwigo/ws.php

<?php
// +-----------------------------------------------------------------------+
// | Piwigo - a PHP based picture gallery                                  |
// +-----------------------------------------------------------------------+
// | Copyright(C) 2008-2010 Piwigo Team                  http://piwigo.org |
// | Copyright(C) 2003-2008 PhpWebGallery Team    http://phpwebgallery.net |
// | Copyright(C) 2002-2003 Pierrick LE GALL   http://le-gall.net/pierrick |
// +-----------------------------------------------------------------------+
// | This program is free software; you can redistribute it and/or modify  |
// | it under the terms of the GNU General Public License as published by  |
// | the Free Software Foundation                                          |
// |                                                                       |
// | This program is distributed in the hope that it will be useful, but   |
// | WITHOUT ANY WARRANTY; without even the implied warranty of            |
// | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU      |
// | General Public License for more details.                              |
// |                                                                       |
// | You should have received a copy of the GNU General Public License     |
// | along with this program; if not, write to the Free Software           |
// | Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, |
// | USA.                                                                  |
// +-----------------------------------------------------------------------+

define ('PHPWG_ROOT_PATH', './');

include_once(PHPWG_ROOT_PATH.'include/common.inc.php');
check_status(ACCESS_FREE);
include_once(PHPWG_ROOT_PATH.'include/ws_core.inc.php');

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.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_with_thumbnail' => array( 'default'=> false ),
      ),
      '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, average_rate,...)'
    );

  $service->addMethod('pwg.categories.getList', 'ws_categories_getList',
      array(
        'cat_id' => array('default'=>0),
        'recursive' => array('default'=>false),
        'public' => array('default'=>false),
      ),
      'retrieves a list of categories' );

  $service->addMethod('pwg.images.addComment', 'ws_images_addComment',
      array(
        'image_id' => array(),
        'author' => array( 'default' => is_a_guest()? 'guest':$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_with_thumbnail' => array( 'default'=> false ),
      ),
      '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.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_with_thumbnail' => array( 'default'=> false ),
      ),
      '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(),
      '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']
        ),
      ),
    '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),
      ),
    '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.'
    );

  $service->addMethod(
    'pwg.images.delete',
    'ws_images_delete',
    array(
      'image_id'=>array('default'=>0),
      'pwg_token' => array('default' => null),
      ),
    '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),
      ),
    'administration method only'
    );

  $service->addMethod(
    'pwg.categories.delete',
    'ws_categories_delete',
    array(
      'category_id'=>array('default'=>0),
      'pwg_token' => array('default' => null),
      '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('default' => null),
      ),
    '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.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(),

      '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']
        ),
      '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('default' => null),
      'plugin' => array('default' => null),
      'pwg_token' => array('default' => null),
      ),
    'install/activate/deactivate/uninstall/delete a plugin
<br>administration status required'
    );

  $service->addMethod(
    'pwg.themes.performAction',
    'ws_themes_performAction',
    array(
      'action' => array('default' => null),
      'themes' => array('default' => null),
      'pwg_token' => array('default' => null),
      ),
    'activate/deactivate/delete/set_default a theme<br>administration status required'
    );
}

add_event_handler('ws_add_methods', 'ws_addDefaultMethods');


add_event_handler('ws_invoke_allowed', 'ws_isInvokeAllowed', EVENT_HANDLER_PRIORITY_NEUTRAL, 3);

$requestFormat = null;
$responseFormat = null;

if ( isset($_GET['format']) )
{
  $responseFormat = $_GET['format'];
}

if ( isset($HTTP_RAW_POST_DATA) )
{
  $HTTP_RAW_POST_DATA = trim($HTTP_RAW_POST_DATA);
  if ( strncmp($HTTP_RAW_POST_DATA, '<?xml', 5) == 0 )
  {
  }
  else
  {
    $requestFormat = "json";
  }
}
else
{
  $requestFormat = "rest";
}

if ( !isset($responseFormat) and isset($requestFormat) )
{
  $responseFormat = $requestFormat;
}

$service = new PwgServer();

if (!is_null($requestFormat))
{
  $handler = null;
  switch ($requestFormat)
  {
    case 'rest':
      include_once(PHPWG_ROOT_PATH.'include/ws_protocols/rest_handler.php');
      $handler = new PwgRestRequestHandler();
      break;
  }
  $service->setHandler($requestFormat, $handler);
}

if (!is_null($responseFormat))
{
  $encoder = null;
  switch ($responseFormat)
  {
    case 'rest':
      include_once(PHPWG_ROOT_PATH.'include/ws_protocols/rest_encoder.php');
      $encoder = new PwgRestEncoder();
      break;
    case 'php':
      include_once(PHPWG_ROOT_PATH.'include/ws_protocols/php_encoder.php');
      $encoder = new PwgSerialPhpEncoder();
      break;
    case 'json':
      include_once(PHPWG_ROOT_PATH.'include/ws_protocols/json_encoder.php');
      $encoder = new PwgJsonEncoder();
      break;
    case 'xmlrpc':
      include_once(PHPWG_ROOT_PATH.'include/ws_protocols/xmlrpc_encoder.php');
      $encoder = new PwgXmlRpcEncoder();
      break;
  }
  $service->setEncoder($responseFormat, $encoder);
}

set_make_full_url();
$service->run();

?>