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+<?php
+// +-----------------------------------------------------------------------+
+// | PhpWebGallery - a PHP based picture gallery |
+// | Copyright (C) 2003-2007 PhpWebGallery Team - http://phpwebgallery.net |
+// +-----------------------------------------------------------------------+
+// | branch : BSF (Best So Far)
+// | file : $URL: svn+ssh://rvelices@svn.gna.org/svn/phpwebgallery/trunk/action.php $
+// | last update : $Date: 2006-12-21 18:49:12 -0500 (Thu, 21 Dec 2006) $
+// | last modifier : $Author: rvelices $
+// | revision : $Rev: 1678 $
+// +-----------------------------------------------------------------------+
+// | 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. |
+// +-----------------------------------------------------------------------+
+
+/**** IMPLEMENTATION OF WEB SERVICE METHODS ***********************************/
+
+/**
+ * returns a "standard" (for our web service) array of sql where clauses that
+ * filters the images (images table only)
+ */
+function ws_std_image_sql_filter( $params, $tbl_name='' )
+{
+ $clauses = array();
+ if ( is_numeric($params['f_min_rate']) )
+ {
+ $clauses[] = $tbl_name.'average_rate>'.$params['f_min_rate'];
+ }
+ if ( is_numeric($params['f_max_rate']) )
+ {
+ $clauses[] = $tbl_name.'average_rate<='.$params['f_max_rate'];
+ }
+ if ( is_numeric($params['f_min_hit']) )
+ {
+ $clauses[] = $tbl_name.'hit>'.$params['f_min_hit'];
+ }
+ if ( is_numeric($params['f_max_hit']) )
+ {
+ $clauses[] = $tbl_name.'hit<='.$params['f_max_hit'];
+ }
+ if ( isset($params['f_min_date_posted']) )
+ {
+ $clauses[] = $tbl_name."date_available>='".$params['f_min_date_posted']."'";
+ }
+ if ( isset($params['f_max_date_posted']) )
+ {
+ $clauses[] = $tbl_name."date_available<'".$params['f_max_date_posted']."'";
+ }
+ if ( isset($params['f_min_date_created']) )
+ {
+ $clauses[] = $tbl_name."date_creation>='".$params['f_min_date_created']."'";
+ }
+ if ( isset($params['f_max_date_created']) )
+ {
+ $clauses[] = $tbl_name."date_creation<'".$params['f_max_date_created']."'";
+ }
+ if ( is_numeric($params['f_min_ratio']) )
+ {
+ $clauses[] = $tbl_name.'width/'.$tbl_name.'height>'.$params['f_min_ratio'];
+ }
+ if ( is_numeric($params['f_max_ratio']) )
+ {
+ $clauses[] = $tbl_name.'width/'.$tbl_name.'height<='.$params['f_max_ratio'];
+ }
+ if ( $params['f_with_thumbnail'] )
+ {
+ $clauses[] = $tbl_name.'tn_ext IS NOT NULL';
+ }
+ return $clauses;
+}
+
+/**
+ * returns a "standard" (for our web service) ORDER BY sql clause for images
+ */
+function ws_std_image_sql_order( $params, $tbl_name='' )
+{
+ $ret = '';
+ if ( empty($params['order']) )
+ {
+ return $ret;
+ }
+ $matches = array();
+ preg_match_all('/([a-z_]+) *(?:(asc|desc)(?:ending)?)? *(?:, *|$)/i',
+ $params['order'], $matches);
+ for ($i=0; $i<count($matches[1]); $i++)
+ {
+ switch ($matches[1][$i])
+ {
+ case 'date_created':
+ $matches[1][$i] = 'date_creation'; break;
+ case 'date_posted':
+ $matches[1][$i] = 'date_available'; break;
+ case 'rand': case 'random':
+ $matches[1][$i] = 'RAND()'; break;
+ }
+ $sortable_fields = array('id', 'file', 'name', 'hit', 'average_rate',
+ 'date_creation', 'date_available', 'RAND()' );
+ if ( in_array($matches[1][$i], $sortable_fields) )
+ {
+ if (!empty($ret))
+ $ret .= ', ';
+ if ($matches[1][$i] != 'RAND()' )
+ {
+ $ret .= $tbl_name;
+ }
+ $ret .= $matches[1][$i];
+ $ret .= ' '.$matches[2][$i];
+ }
+ }
+ return $ret;
+}
+
+/**
+ * returns an array map of urls (thumb/element) for image_row - to be returned
+ * in a standard way by different web service methods
+ */
+function ws_std_get_urls($image_row)
+{
+ $ret = array(
+ 'tn_url' => get_thumbnail_url($image_row),
+ 'element_url' => get_element_url($image_row)
+ );
+ global $user;
+ if ($user['enabled_high'] and $image_row['has_high'] )
+ {
+ $ret['high_url'] = get_high_url($image_row);
+ }
+ return $ret;
+}
+
+
+function ws_getVersion($params, &$service)
+{
+ return PHPWG_VERSION;
+}
+
+/**
+ * returns images per category (wb service method)
+ */
+function ws_categories_getImages($params, &$service)
+{
+ @include_once(PHPWG_ROOT_PATH.'include/functions_picture.inc.php');
+ global $user, $conf;
+
+ $images = array();
+
+ //------------------------------------------------- get the related categories
+ $where_clauses = array();
+ foreach($params['cat_id'] as $cat_id)
+ {
+ $cat_id = (int)$cat_id;
+ if ($cat_id<=0)
+ continue;
+ if ($params['recursive'])
+ {
+ $where_clauses[] = 'uppercats REGEXP \'(^|,)'.$cat_id.'(,|$)\'';
+ }
+ else
+ {
+ $where_clauses[] = 'id='.$cat_id;
+ }
+ }
+ if (!empty($where_clauses))
+ {
+ $where_clauses = array( '('.
+ implode('
+ OR ', $where_clauses) . ')'
+ );
+ }
+ $where_clauses[] = 'id NOT IN ('.$user['forbidden_categories'].')';
+
+ $query = '
+SELECT id, name, image_order
+ FROM '.CATEGORIES_TABLE.'
+ WHERE '. implode('
+ AND ', $where_clauses);
+ $result = pwg_query($query);
+ $cats = array();
+ while ($row = mysql_fetch_assoc($result))
+ {
+ $row['id'] = (int)$row['id'];
+ $cats[ $row['id'] ] = $row;
+ }
+
+ //-------------------------------------------------------- get the images
+ if ( !empty($cats) )
+ {
+ $where_clauses = ws_std_image_sql_filter( $params, 'i.' );
+ $where_clauses[] = 'category_id IN ('
+ .implode(',', array_keys($cats) )
+ .')';
+ $order_by = ws_std_image_sql_order($params, 'i.');
+ if (empty($order_by))
+ {// TODO check for category order by (image_order)
+ $order_by = $conf['order_by'];
+ }
+ else
+ {
+ $order_by = 'ORDER BY '.$order_by;
+ }
+ $query = '
+SELECT i.*, GROUP_CONCAT(category_id) cat_ids
+ FROM '.IMAGES_TABLE.' i
+ INNER JOIN '.IMAGE_CATEGORY_TABLE.' ON i.id=image_id
+ WHERE '. implode('
+ AND ', $where_clauses).'
+GROUP BY i.id
+'.$order_by.'
+LIMIT '.$params['per_page']*$params['page'].','.$params['per_page'];
+
+ $result = pwg_query($query);
+ while ($row = mysql_fetch_assoc($result))
+ {
+ $image = array();
+ foreach ( array('id', 'width', 'height', 'hit') as $k )
+ {
+ if (isset($row[$k]))
+ {
+ $image[$k] = (int)$row[$k];
+ }
+ }
+ foreach ( array('name', 'file') as $k )
+ {
+ $image[$k] = $row[$k];
+ }
+ $image = array_merge( $image, ws_std_get_urls($row) );
+
+ $image_cats = array();
+ foreach ( explode(',', $row['cat_ids']) as $cat_id )
+ {
+ $url = make_index_url(
+ array(
+ 'category' => $cat_id,
+ 'cat_name' => $cats[$cat_id]['name'],
+ )
+ );
+ $page_url = make_picture_url(
+ array(
+ 'category' => $cat_id,
+ 'cat_name' => $cats[$cat_id]['name'],
+ 'image_id' => $row['id'],
+ 'image_file' => $row['file'],
+ )
+ );
+ array_push( $image_cats, array(
+ WS_XML_ATTRIBUTES => array (
+ 'id' => (int)$cat_id,
+ 'url' => $url,
+ 'page_url' => $page_url,
+ )
+ )
+ );
+ }
+
+ $image['categories'] = new PwgNamedArray(
+ $image_cats,'category', array('id','url','page_url')
+ );
+ array_push($images, $image);
+ }
+ }
+
+ return array( 'images' =>
+ array (
+ WS_XML_ATTRIBUTES =>
+ array(
+ 'page' => $params['page'],
+ 'per_page' => $params['per_page'],
+ 'count' => count($images)
+ ),
+ WS_XML_CONTENT => new PwgNamedArray($images, 'image',
+ array('id', 'tn_url', 'element_url', 'file','width','height','hit') )
+ )
+ );
+}
+
+/**
+ * returns a list of categories
+ */
+function ws_categories_getList($params, &$service)
+{
+ global $user;
+
+ $query = '
+SELECT id, name, uppercats, global_rank,
+ max_date_last, count_images AS nb_images, count_categories AS nb_categories
+ FROM '.CATEGORIES_TABLE.'
+ INNER JOIN '.USER_CACHE_CATEGORIES_TABLE.' ON id=cat_id';
+
+ $where = array();
+ $where[]= 'user_id='.$user['id'];
+ if ($params['cat_id']>0)
+ {
+ $where[] = 'uppercats REGEXP \'(^|,)'.
+ (int)($params['cat_id'])
+ .'(,|$)\'';
+ }
+
+ if (!$params['recursive'])
+ {
+ if ($params['cat_id']>0)
+ $where[] = 'id_uppercat='.(int)($params['cat_id']);
+ else
+ $where[] = 'id_uppercat IS NULL';
+ }
+
+ if ($params['public'])
+ {
+ $where[] = 'status = "public"';
+ }
+ else
+ {
+ $where[] = 'id NOT IN ('.$user['forbidden_categories'].')';
+ }
+
+ $query .= '
+ WHERE '. implode('
+ AND ', $where);
+ $query .= '
+ORDER BY global_rank';
+
+ $result = pwg_query($query);
+
+ $cats = array();
+ while ($row = mysql_fetch_assoc($result))
+ {
+ $row['url'] = make_index_url(
+ array(
+ 'category' => $row['id'],
+ 'cat_name' => $row['name'],
+ )
+ );
+ foreach( array('id','nb_images','nb_categories') as $key)
+ {
+ $row[$key] = (int)$row[$key];
+ }
+ array_push($cats, $row);
+ }
+ usort($cats, 'global_rank_compare');
+ return array(
+ 'categories' =>
+ new PwgNamedArray($cats,'category',
+ array('id','url','nb_images','nb_categories','max_date_last')
+ )
+ );
+}
+
+function ws_images_getInfo($params, &$service)
+{
+ @include_once(PHPWG_ROOT_PATH.'include/functions_picture.inc.php');
+ global $user;
+ $params['image_id'] = (int)$params['image_id'];
+ if ( $params['image_id']<=0 )
+ {
+ return new PwgError(WS_ERR_INVALID_PARAM, "Invalid image_id");
+ }
+ $query='
+SELECT * FROM '.IMAGES_TABLE.'
+ WHERE id='.$params['image_id'].'
+LIMIT 1';
+ $image_row = mysql_fetch_assoc(pwg_query($query));
+ if ($image_row==null)
+ {
+ return new PwgError(999, "image_id not found");
+ }
+ array_merge( $image_row, ws_std_get_urls($image_row) );
+
+ //-------------------------------------------------------- related categories
+ $query = '
+SELECT c.id,c.name,c.uppercats,c.global_rank
+ FROM '.IMAGE_CATEGORY_TABLE.'
+ INNER JOIN '.CATEGORIES_TABLE.' c ON category_id = id
+ WHERE image_id = '.$image_row['id'].'
+ AND category_id NOT IN ('.$user['forbidden_categories'].')
+;';
+ $result = pwg_query($query);
+ $related_categories = array();
+ while ($row = mysql_fetch_assoc($result))
+ {
+ $row['url'] = make_index_url(
+ array(
+ 'category' => $row['id'],
+ 'cat_name' => $row['name'],
+ )
+ );
+
+ $row['page_url'] = make_picture_url(
+ array(
+ 'image_id' => $image_row['id'],
+ 'image_file' => $image_row['file'],
+ 'category' => $row['id'],
+ 'cat_name' => $row['name'],
+ )
+ );
+ array_push($related_categories, $row);
+ }
+ usort($related_categories, 'global_rank_compare');
+ if ( empty($related_categories) )
+ {
+ return new PwgError(401, 'Access denied');
+ }
+
+ //-------------------------------------------------------------- related tags
+ $query = '
+SELECT id, name, url_name
+ FROM '.IMAGE_TAG_TABLE.'
+ INNER JOIN '.TAGS_TABLE.' ON tag_id = id
+ WHERE image_id = '.$image_row['id'].'
+;';
+ $result = pwg_query($query);
+ $related_tags = array();
+ while ($row = mysql_fetch_assoc($result))
+ {
+ $row['url'] = make_index_url(
+ array(
+ 'tags' => array($row)
+ )
+ );
+ $row['page_url'] = make_picture_url(
+ array(
+ 'image_id' => $image_row['id'],
+ 'image_file' => $image_row['file'],
+ 'tags' => array($row),
+ )
+ );
+ array_push($related_tags, $row);
+ }
+ //---------------------------------------------------------- related comments
+ $query = '
+SELECT COUNT(id) nb_comments
+ FROM '.COMMENTS_TABLE.'
+ WHERE image_id = '.$image_row['id'];
+ list($nb_comments) = array_from_query($query, 'nb_comments');
+
+ $query = '
+SELECT id, date, author, content
+ FROM '.COMMENTS_TABLE.'
+ WHERE image_id = '.$image_row['id'].'
+ AND validated="true"';
+ $query .= '
+ ORDER BY date DESC
+ LIMIT 0, 5';
+
+ $result = pwg_query($query);
+ $related_comments = array();
+ while ($row = mysql_fetch_assoc($result))
+ {
+ array_push($related_comments, $row);
+ }
+
+ //------------------------------------------------------------- related rates
+ $query = '
+SELECT COUNT(rate) AS count
+ , ROUND(AVG(rate),2) AS average
+ , ROUND(STD(rate),2) AS stdev
+ FROM '.RATE_TABLE.'
+ WHERE element_id = '.$image_row['id'].'
+;';
+ $row = mysql_fetch_assoc(pwg_query($query));
+
+ $ret = $image_row;
+ $ret['rates'] = array( WS_XML_ATTRIBUTES => $row );
+ $ret['categories'] = new PwgNamedArray($related_categories, 'category', array('id','url', 'page_url') );
+ $ret['tags'] = new PwgNamedArray($related_tags, 'tag', array('id','url_name','url','page_url') );
+ $ret['comments'] = array(
+ WS_XML_ATTRIBUTES => array('nb_comments' => $nb_comments),
+ WS_XML_CONTENT => new PwgNamedArray($related_comments, 'comment', array('id') )
+ );
+ unset($ret['path']);
+ unset($ret['storage_category_id']);
+ return new PwgNamedStruct('image',$ret, null, array('name','comment') );
+}
+
+
+function ws_session_login($params, &$service)
+{
+ global $conf;
+
+ if (!$service->isPost())
+ {
+ return new PwgError(400, "This method requires POST");
+ }
+
+ $username = $params['username'];
+ // retrieving the encrypted password of the login submitted
+ $query = '
+SELECT '.$conf['user_fields']['id'].' AS id,
+ '.$conf['user_fields']['password'].' AS password
+ FROM '.USERS_TABLE.'
+ WHERE '.$conf['user_fields']['username'].' = \''.$username.'\'
+;';
+ $row = mysql_fetch_assoc(pwg_query($query));
+
+ if ($row['password'] == $conf['pass_convert']($params['password']))
+ {
+ log_user($row['id'], false);
+ return true;
+ }
+ return new PwgError(999, 'Invalid username/password');
+}
+
+function ws_session_logout($params, &$service)
+{
+ global $user, $conf;
+ if (!$user['is_the_guest'])
+ {
+ $_SESSION = array();
+ session_unset();
+ session_destroy();
+ setcookie(session_name(),'',0,
+ ini_get('session.cookie_path'),
+ ini_get('session.cookie_domain')
+ );
+ setcookie($conf['remember_me_name'], '', 0, cookie_path());
+ }
+ return true;
+}
+
+function ws_session_getStatus($params, &$service)
+{
+ global $user;
+ $res = array();
+ $res['username'] = $user['is_the_guest'] ? 'guest' : $user['username'];
+ $res['status'] = $user['status'];
+ return $res;
+}
+
+
+function ws_tags_getList($params, &$service)
+{
+ global $user;
+ $tags = get_available_tags(explode(',', $user['forbidden_categories']));
+ if ($params['sort_by_counter'])
+ {
+ usort($tags, create_function('$a,$b', 'return -$a["counter"]+$b["counter"];') );
+ }
+ else
+ {
+ usort($tags, 'name_compare');
+ }
+ for ($i=0; $i<count($tags); $i++)
+ {
+ $tags[$i]['id'] = (int)$tags[$i]['tag_id'];
+ $tags[$i]['counter'] = (int)$tags[$i]['counter'];
+ unset($tags[$i]['tag_id']);
+ $tags[$i]['url'] = make_index_url(
+ array(
+ 'section'=>'tags',
+ 'tags'=>array($tags[$i])
+ )
+ );
+ }
+ return array('tags' => new PwgNamedArray($tags, 'tag', array('id','url_name','url', 'counter' )) );
+}
+
+function ws_tags_getImages($params, &$service)
+{
+ @include_once(PHPWG_ROOT_PATH.'include/functions_picture.inc.php');
+ global $user, $conf;
+
+ // first build all the tag_ids we are interested in
+ $tag_ids = array();
+ $tags = get_available_tags();
+ $tags_by_id = array();
+ for( $i=0; $i<count($tags); $i++ )
+ {
+ $tags[$i]['tag_id']=(int)$tags[$i]['tag_id'];
+ $tags[$i]['id']=(int)$tags[$i]['tag_id']; //required by make_xxx_url
+ }
+ foreach( $tags as $tag )
+ {
+ $tags_by_id[ $tag['tag_id'] ] = $tag;
+ if (
+ in_array($tag['name'], $params['tag_name'])
+ or
+ in_array($tag['url_name'], $params['tag_url_name'])
+ )
+ {
+ $tag_ids[] = $tag['tag_id'];
+ }
+ }
+ unset($tags);
+
+ foreach( $params['tag_id'] as $tag_id )
+ {
+ if ( (int)$tag_id > 0 )
+ {
+ $tag_ids[] = $tag_id;
+ }
+ }
+
+ $tag_ids = array_unique( $tag_ids );
+
+ $image_ids = array();
+ $image_tag_map = array();
+
+ if ( !empty($tag_ids) )
+ { // build list of image ids with associated tags per image
+ if ($params['tag_mode_and'])
+ {
+ $image_ids = get_image_ids_for_tags( $tag_ids );
+ }
+ else
+ {
+ $query = '
+SELECT image_id, GROUP_CONCAT(tag_id) tag_ids
+ FROM '.IMAGE_TAG_TABLE.'
+ WHERE tag_id IN ('.implode(',',$tag_ids).')
+ GROUP BY image_id';
+ $result = pwg_query($query);
+ while ( $row=mysql_fetch_assoc($result) )
+ {
+ $row['image_id'] = (int)$row['image_id'];
+ array_push( $image_ids, $row['image_id'] );
+ $image_tag_map[ $row['image_id'] ] = explode(',', $row['tag_ids']);
+ }
+ }
+ }
+
+ $images = array();
+ if ( !empty($image_ids))
+ {
+ $where_clauses = ws_std_image_sql_filter($params);
+ $where_clauses[] = 'category_id NOT IN ('.$user['forbidden_categories'].')';
+ $where_clauses[] = 'id IN ('.implode(',',$image_ids).')';
+ $order_by = ws_std_image_sql_order($params);
+ if (empty($order_by))
+ {
+ $order_by = $conf['order_by'];
+ }
+ else
+ {
+ $order_by = 'ORDER BY '.$order_by;
+ }
+
+ $query = '
+SELECT DISTINCT i.* FROM '.IMAGES_TABLE.' i
+ INNER JOIN '.IMAGE_CATEGORY_TABLE.' ON i.id=image_id
+ WHERE '. implode('
+ AND ', $where_clauses).'
+'.$order_by.'
+LIMIT '.$params['per_page']*$params['page'].','.$params['per_page'];
+
+ $result = pwg_query($query);
+ while ($row = mysql_fetch_assoc($result))
+ {
+ foreach ( array('id', 'width', 'height', 'hit') as $k )
+ {
+ if (isset($row[$k]))
+ {
+ $image[$k] = (int)$row[$k];
+ }
+ }
+ foreach ( array('name', 'file') as $k )
+ {
+ $image[$k] = $row[$k];
+ }
+ $image = array_merge( $image, ws_std_get_urls($row) );
+
+ $image_tag_ids = ($params['tag_mode_and']) ? $tag_ids : $image_tag_map[$image['id']];
+ $image_tags = array();
+ foreach ($image_tag_ids as $tag_id)
+ {
+ $url = make_index_url(
+ array(
+ 'section'=>'tags',
+ 'tags'=> array($tags_by_id[$tag_id])
+ )
+ );
+ $page_url = make_picture_url(
+ array(
+ 'section'=>'tags',
+ 'tags'=> array($tags_by_id[$tag_id]),
+ 'image_id' => $row['id'],
+ 'image_file' => $row['file'],
+ )
+ );
+ array_push($image_tags, array(
+ 'id' => (int)$tag_id,
+ 'url' => $url,
+ 'page_url' => $page_url,
+ )
+ );
+ }
+ $image['tags'] = new PwgNamedArray($image_tags, 'tag',
+ array('id','url_name','url','page_url')
+ );
+ array_push($images, $image);
+ }
+ }
+
+ return array( 'images' =>
+ array (
+ WS_XML_ATTRIBUTES =>
+ array(
+ 'page' => $params['page'],
+ 'per_page' => $params['per_page'],
+ 'count' => count($images)
+ ),
+ WS_XML_CONTENT => new PwgNamedArray($images, 'image',
+ array('id', 'tn_url', 'element_url', 'file','width','height','hit') )
+ )
+ );
+}
+
+?>