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piwigo_ynh/sources/admin/include/functions.php
monsieur-a 677d1bffff initial commit
2014-07-06 13:21:10 +02:00

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<?php
// +-----------------------------------------------------------------------+
// | Piwigo - a PHP based photo gallery |
// +-----------------------------------------------------------------------+
// | Copyright(C) 2008-2014 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. |
// +-----------------------------------------------------------------------+
/**
* @package functions\admin\___
*/
include_once(PHPWG_ROOT_PATH.'admin/include/functions_metadata.php');
/**
* Deletes a site and call delete_categories for each primary category of the site
*
* @param int $id
*/
function delete_site($id)
{
// destruction of the categories of the site
$query = '
SELECT id
FROM '.CATEGORIES_TABLE.'
WHERE site_id = '.$id.'
;';
$category_ids = array_from_query($query, 'id');
delete_categories($category_ids);
// destruction of the site
$query = '
DELETE FROM '.SITES_TABLE.'
WHERE id = '.$id.'
;';
pwg_query($query);
}
/**
* Recursively deletes one or more categories.
* It also deletes :
* - all the elements physically linked to the category (with delete_elements)
* - all the links between elements and this category
* - all the restrictions linked to the category
*
* @param int[] $ids
* @param string $photo_deletion_mode
* - no_delete : delete no photo, may create orphans
* - delete_orphans : delete photos that are no longer linked to any category
* - force_delete : delete photos even if they are linked to another category
*/
function delete_categories($ids, $photo_deletion_mode='no_delete')
{
if (count($ids) == 0)
{
return;
}
// add sub-category ids to the given ids : if a category is deleted, all
// sub-categories must be so
$ids = get_subcat_ids($ids);
// destruction of all photos physically linked to the category
$query = '
SELECT id
FROM '.IMAGES_TABLE.'
WHERE storage_category_id IN (
'.wordwrap(implode(', ', $ids), 80, "\n").')
;';
$element_ids = array_from_query($query, 'id');
delete_elements($element_ids);
// now, should we delete photos that are virtually linked to the category?
if ('delete_orphans' == $photo_deletion_mode or 'force_delete' == $photo_deletion_mode)
{
$query = '
SELECT
DISTINCT(image_id)
FROM '.IMAGE_CATEGORY_TABLE.'
WHERE category_id IN ('.implode(',', $ids).')
;';
$image_ids_linked = array_from_query($query, 'image_id');
if (count($image_ids_linked) > 0)
{
if ('delete_orphans' == $photo_deletion_mode)
{
$query = '
SELECT
DISTINCT(image_id)
FROM '.IMAGE_CATEGORY_TABLE.'
WHERE image_id IN ('.implode(',', $image_ids_linked).')
AND category_id NOT IN ('.implode(',', $ids).')
;';
$image_ids_not_orphans = array_from_query($query, 'image_id');
$image_ids_to_delete = array_diff($image_ids_linked, $image_ids_not_orphans);
}
if ('force_delete' == $photo_deletion_mode)
{
$image_ids_to_delete = $image_ids_linked;
}
delete_elements($image_ids_to_delete, true);
}
}
// destruction of the links between images and this category
$query = '
DELETE FROM '.IMAGE_CATEGORY_TABLE.'
WHERE category_id IN (
'.wordwrap(implode(', ', $ids), 80, "\n").')
;';
pwg_query($query);
// destruction of the access linked to the category
$query = '
DELETE FROM '.USER_ACCESS_TABLE.'
WHERE cat_id IN (
'.wordwrap(implode(', ', $ids), 80, "\n").')
;';
pwg_query($query);
$query = '
DELETE FROM '.GROUP_ACCESS_TABLE.'
WHERE cat_id IN (
'.wordwrap(implode(', ', $ids), 80, "\n").')
;';
pwg_query($query);
// destruction of the category
$query = '
DELETE FROM '.CATEGORIES_TABLE.'
WHERE id IN (
'.wordwrap(implode(', ', $ids), 80, "\n").')
;';
pwg_query($query);
$query='
DELETE FROM '.OLD_PERMALINKS_TABLE.'
WHERE cat_id IN ('.implode(',',$ids).')';
pwg_query($query);
$query='
DELETE FROM '.USER_CACHE_CATEGORIES_TABLE.'
WHERE cat_id IN ('.implode(',',$ids).')';
pwg_query($query);
trigger_action('delete_categories', $ids);
}
/**
* Deletes all files (on disk) related to given image ids.
*
* @param int[] $ids
* @return 0|int[] image ids where files were successfully deleted
*/
function delete_element_files($ids)
{
global $conf;
if (count($ids) == 0)
{
return 0;
}
$new_ids = array();
$query = '
SELECT
id,
path,
representative_ext
FROM '.IMAGES_TABLE.'
WHERE id IN ('.implode(',', $ids).')
;';
$result = pwg_query($query);
while ($row = pwg_db_fetch_assoc($result))
{
if (url_is_remote($row['path']))
{
continue;
}
$files = array();
$files[] = get_element_path($row);
if (!empty($row['representative_ext']))
{
$files[] = original_to_representative( $files[0], $row['representative_ext']);
}
$ok = true;
if (!isset($conf['never_delete_originals']))
{
foreach ($files as $path)
{
if (is_file($path) and !unlink($path))
{
$ok = false;
trigger_error('"'.$path.'" cannot be removed', E_USER_WARNING);
break;
}
}
}
if ($ok)
{
delete_element_derivatives($row);
$new_ids[] = $row['id'];
}
else
{
break;
}
}
return $new_ids;
}
/**
* Deletes elements from database.
* It also deletes :
* - all the comments related to elements
* - all the links between categories/tags and elements
* - all the favorites/rates associated to elements
* - removes elements from caddie
*
* @param int[] $ids
* @param bool $physical_deletion
* @return int number of deleted elements
*/
function delete_elements($ids, $physical_deletion=false)
{
if (count($ids) == 0)
{
return 0;
}
trigger_action('begin_delete_elements', $ids);
if ($physical_deletion)
{
$ids = delete_element_files($ids);
if (count($ids)==0)
{
return 0;
}
}
$ids_str = wordwrap(implode(', ', $ids), 80, "\n");
// destruction of the comments on the image
$query = '
DELETE FROM '.COMMENTS_TABLE.'
WHERE image_id IN ('. $ids_str .')
;';
pwg_query($query);
// destruction of the links between images and categories
$query = '
DELETE FROM '.IMAGE_CATEGORY_TABLE.'
WHERE image_id IN ('. $ids_str .')
;';
pwg_query($query);
// destruction of the links between images and tags
$query = '
DELETE FROM '.IMAGE_TAG_TABLE.'
WHERE image_id IN ('. $ids_str .')
;';
pwg_query($query);
// destruction of the favorites associated with the picture
$query = '
DELETE FROM '.FAVORITES_TABLE.'
WHERE image_id IN ('. $ids_str .')
;';
pwg_query($query);
// destruction of the rates associated to this element
$query = '
DELETE FROM '.RATE_TABLE.'
WHERE element_id IN ('. $ids_str .')
;';
pwg_query($query);
// destruction of the caddie associated to this element
$query = '
DELETE FROM '.CADDIE_TABLE.'
WHERE element_id IN ('. $ids_str .')
;';
pwg_query($query);
// destruction of the image
$query = '
DELETE FROM '.IMAGES_TABLE.'
WHERE id IN ('. $ids_str .')
;';
pwg_query($query);
// are the photo used as category representant?
$query = '
SELECT
id
FROM '.CATEGORIES_TABLE.'
WHERE representative_picture_id IN ('. $ids_str .')
;';
$category_ids = array_from_query($query, 'id');
if (count($category_ids) > 0)
{
update_category($category_ids);
}
trigger_action('delete_elements', $ids);
return count($ids);
}
/**
* Deletes an user.
* It also deletes all related data (accesses, favorites, permissions, etc.)
* @todo : accept array input
*
* @param int $user_id
*/
function delete_user($user_id)
{
global $conf;
$tables = array(
// destruction of the access linked to the user
USER_ACCESS_TABLE,
// destruction of data notification by mail for this user
USER_MAIL_NOTIFICATION_TABLE,
// destruction of data RSS notification for this user
USER_FEED_TABLE,
// deletion of calculated permissions linked to the user
USER_CACHE_TABLE,
// deletion of computed cache data linked to the user
USER_CACHE_CATEGORIES_TABLE,
// destruction of the group links for this user
USER_GROUP_TABLE,
// destruction of the favorites associated with the user
FAVORITES_TABLE,
// destruction of the caddie associated with the user
CADDIE_TABLE,
// deletion of piwigo specific informations
USER_INFOS_TABLE,
);
foreach ($tables as $table)
{
$query = '
DELETE FROM '.$table.'
WHERE user_id = '.$user_id.'
;';
pwg_query($query);
}
// purge of sessions
$query = '
DELETE FROM '.SESSIONS_TABLE.'
WHERE data LIKE \'pwg_uid|i:'.(int)$user_id.';%\'
;';
pwg_query($query);
// destruction of the user
$query = '
DELETE FROM '.USERS_TABLE.'
WHERE '.$conf['user_fields']['id'].' = '.$user_id.'
;';
pwg_query($query);
trigger_action('delete_user', $user_id);
}
/**
* Deletes all tags linked to no photo
*/
function delete_orphan_tags()
{
$orphan_tags = get_orphan_tags();
if (count($orphan_tags) > 0)
{
$orphan_tag_ids = array();
foreach ($orphan_tags as $tag)
{
$orphan_tag_ids[] = $tag['id'];
}
$query = '
DELETE
FROM '.TAGS_TABLE.'
WHERE id IN ('.implode(',', $orphan_tag_ids).')
;';
pwg_query($query);
}
}
/**
* Get all tags (id + name) linked to no photo
*/
function get_orphan_tags()
{
$query = '
SELECT
id,
name
FROM '.TAGS_TABLE.'
LEFT JOIN '.IMAGE_TAG_TABLE.' ON id = tag_id
WHERE tag_id IS NULL
;';
return array_from_query($query);
}
/**
* Verifies that the representative picture really exists in the db and
* picks up a random representative if possible and based on config.
*
* @param 'all'|int|int[] $ids
*/
function update_category($ids = 'all')
{
global $conf;
if ($ids=='all')
{
$where_cats = '1=1';
}
elseif ( !is_array($ids) )
{
$where_cats = '%s='.$ids;
}
else
{
if (count($ids) == 0)
{
return false;
}
$where_cats = '%s IN('.wordwrap(implode(', ', $ids), 120, "\n").')';
}
// find all categories where the setted representative is not possible :
// the picture does not exist
$query = '
SELECT DISTINCT c.id
FROM '.CATEGORIES_TABLE.' AS c LEFT JOIN '.IMAGES_TABLE.' AS i
ON c.representative_picture_id = i.id
WHERE representative_picture_id IS NOT NULL
AND '.sprintf($where_cats, 'c.id').'
AND i.id IS NULL
;';
$wrong_representant = array_from_query($query, 'id');
if (count($wrong_representant) > 0)
{
$query = '
UPDATE '.CATEGORIES_TABLE.'
SET representative_picture_id = NULL
WHERE id IN ('.wordwrap(implode(', ', $wrong_representant), 120, "\n").')
;';
pwg_query($query);
}
if (!$conf['allow_random_representative'])
{
// If the random representant is not allowed, we need to find
// categories with elements and with no representant. Those categories
// must be added to the list of categories to set to a random
// representant.
$query = '
SELECT DISTINCT id
FROM '.CATEGORIES_TABLE.' INNER JOIN '.IMAGE_CATEGORY_TABLE.'
ON id = category_id
WHERE representative_picture_id IS NULL
AND '.sprintf($where_cats, 'category_id').'
;';
$to_rand = array_from_query($query, 'id');
if (count($to_rand) > 0)
{
set_random_representant($to_rand);
}
}
}
/**
* Checks and repairs IMAGE_CATEGORY_TABLE integrity.
* Removes all entries from the table which correspond to a deleted image.
*/
function images_integrity()
{
$query = '
SELECT
image_id
FROM '.IMAGE_CATEGORY_TABLE.'
LEFT JOIN '.IMAGES_TABLE.' ON id = image_id
WHERE id IS NULL
;';
$result = pwg_query($query);
$orphan_image_ids = array_from_query($query, 'image_id');
if (count($orphan_image_ids) > 0)
{
$query = '
DELETE
FROM '.IMAGE_CATEGORY_TABLE.'
WHERE image_id IN ('.implode(',', $orphan_image_ids).')
;';
pwg_query($query);
}
}
/**
* Returns an array containing sub-directories which are potentially
* a category.
* Directories named ".svn", "thumbnail", "pwg_high" or "pwg_representative"
* are omitted.
*
* @param string $basedir (eg: ./galleries)
* @return string[]
*/
function get_fs_directories($path, $recursive = true)
{
$dirs = array();
$path = rtrim($path, '/');
if (is_dir($path))
{
if ($contents = opendir($path))
{
while (($node = readdir($contents)) !== false)
{
if ($node != '.'
and $node != '..'
and $node != '.svn'
and $node != 'thumbnail'
and $node != 'pwg_high'
and $node != 'pwg_representative'
and is_dir($path.'/'.$node))
{
$dirs[] = $path.'/'.$node;
if ($recursive)
{
$dirs = array_merge($dirs, get_fs_directories($path.'/'.$node));
}
}
}
closedir($contents);
}
}
return $dirs;
}
/**
* Orders categories (update categories.rank and global_rank database fields)
* so that rank field are consecutive integers starting at 1 for each child.
*/
function update_global_rank()
{
$query = '
SELECT id, id_uppercat, uppercats, rank, global_rank
FROM '.CATEGORIES_TABLE.'
ORDER BY id_uppercat,rank,name';
global $cat_map; // used in preg_replace callback
$cat_map = array();
$current_rank = 0;
$current_uppercat = '';
$result = pwg_query($query);
while ($row = pwg_db_fetch_assoc($result))
{
if ($row['id_uppercat'] != $current_uppercat)
{
$current_rank = 0;
$current_uppercat = $row['id_uppercat'];
}
++$current_rank;
$cat =
array(
'rank' => $current_rank,
'rank_changed' =>$current_rank!=$row['rank'],
'global_rank' => $row['global_rank'],
'uppercats' => $row['uppercats'],
);
$cat_map[ $row['id'] ] = $cat;
}
$datas = array();
$cat_map_callback = create_function('$m', 'global $cat_map; return $cat_map[$m[1]]["rank"];');
foreach( $cat_map as $id=>$cat )
{
$new_global_rank = preg_replace_callback(
'/(\d+)/',
$cat_map_callback,
str_replace(',', '.', $cat['uppercats'] )
);
if ( $cat['rank_changed']
or $new_global_rank!=$cat['global_rank']
)
{
$datas[] = array(
'id' => $id,
'rank' => $cat['rank'],
'global_rank' => $new_global_rank,
);
}
}
unset($cat_map);
mass_updates(
CATEGORIES_TABLE,
array(
'primary' => array('id'),
'update' => array('rank', 'global_rank')
),
$datas
);
return count($datas);
}
/**
* Change the **visible** property on a set of categories.
*
* @param int[] $categories
* @param boolean|string $value
*/
function set_cat_visible($categories, $value)
{
if ( ($value = filter_var($value, FILTER_VALIDATE_BOOLEAN, FILTER_NULL_ON_FAILURE)) === null )
{
trigger_error("set_cat_visible invalid param $value", E_USER_WARNING);
return false;
}
// unlocking a category => all its parent categories become unlocked
if ($value)
{
$uppercats = get_uppercat_ids($categories);
$query = '
UPDATE '.CATEGORIES_TABLE.'
SET visible = \'true\'
WHERE id IN ('.implode(',', $uppercats).')';
pwg_query($query);
}
// locking a category => all its child categories become locked
else
{
$subcats = get_subcat_ids($categories);
$query = '
UPDATE '.CATEGORIES_TABLE.'
SET visible = \'false\'
WHERE id IN ('.implode(',', $subcats).')';
pwg_query($query);
}
}
/**
* Change the **status** property on a set of categories : private or public.
*
* @param int[] $categories
* @param string $value
*/
function set_cat_status($categories, $value)
{
if (!in_array($value, array('public', 'private')))
{
trigger_error("set_cat_status invalid param $value", E_USER_WARNING);
return false;
}
// make public a category => all its parent categories become public
if ($value == 'public')
{
$uppercats = get_uppercat_ids($categories);
$query = '
UPDATE '.CATEGORIES_TABLE.'
SET status = \'public\'
WHERE id IN ('.implode(',', $uppercats).')
;';
pwg_query($query);
}
// make a category private => all its child categories become private
if ($value == 'private')
{
$subcats = get_subcat_ids($categories);
$query = '
UPDATE '.CATEGORIES_TABLE.'
SET status = \'private\'
WHERE id IN ('.implode(',', $subcats).')';
pwg_query($query);
// We have to keep permissions consistant: a sub-album can't be
// permitted to a user or group if its parent album is not permitted to
// the same user or group. Let's remove all permissions on sub-albums if
// it is not consistant. Let's take the following example:
//
// A1 permitted to U1,G1
// A1/A2 permitted to U1,U2,G1,G2
// A1/A2/A3 permitted to U3,G1
// A1/A2/A4 permitted to U2
// A1/A5 permitted to U4
// A6 permitted to U4
// A6/A7 permitted to G1
//
// (we consider that it can be possible to start with inconsistant
// permission, given that public albums can have hidden permissions,
// revealed once the album returns to private status)
//
// The admin selects A2,A3,A4,A5,A6,A7 to become private (all but A1,
// which is private, which can be true if we're moving A2 into A1). The
// result must be:
//
// A2 permission removed to U2,G2
// A3 permission removed to U3
// A4 permission removed to U2
// A5 permission removed to U2
// A6 permission removed to U4
// A7 no permission removed
//
// 1) we must extract "top albums": A2, A5 and A6
// 2) for each top album, decide which album is the reference for permissions
// 3) remove all inconsistant permissions from sub-albums of each top-album
// step 1, search top albums
$all_categories = array();
$top_categories = array();
$parent_ids = array();
$query = '
SELECT
id,
name,
id_uppercat,
uppercats,
global_rank
FROM '.CATEGORIES_TABLE.'
WHERE id IN ('.implode(',', $categories).')
;';
$result = pwg_query($query);
while ($row = pwg_db_fetch_assoc($result))
{
$all_categories[] = $row;
}
usort($all_categories, 'global_rank_compare');
foreach ($all_categories as $cat)
{
$is_top = true;
if (!empty($cat['id_uppercat']))
{
foreach (explode(',', $cat['uppercats']) as $id_uppercat)
{
if (isset($top_categories[$id_uppercat]))
{
$is_top = false;
break;
}
}
}
if ($is_top)
{
$top_categories[$cat['id']] = $cat;
if (!empty($cat['id_uppercat']))
{
$parent_ids[] = $cat['id_uppercat'];
}
}
}
// step 2, search the reference album for permissions
//
// to find the reference of each top album, we will need the parent albums
$parent_cats = array();
if (count($parent_ids) > 0)
{
$query = '
SELECT
id,
status
FROM '.CATEGORIES_TABLE.'
WHERE id IN ('.implode(',', $parent_ids).')
;';
$result = pwg_query($query);
while ($row = pwg_db_fetch_assoc($result))
{
$parent_cats[$row['id']] = $row;
}
}
$tables = array(
USER_ACCESS_TABLE => 'user_id',
GROUP_ACCESS_TABLE => 'group_id'
);
foreach ($top_categories as $top_category)
{
// what is the "reference" for list of permissions? The parent album
// if it is private, else the album itself
$ref_cat_id = $top_category['id'];
if (!empty($top_category['id_uppercat'])
and isset($parent_cats[ $top_category['id_uppercat'] ])
and 'private' == $parent_cats[ $top_category['id_uppercat'] ]['status'])
{
$ref_cat_id = $top_category['id_uppercat'];
}
$subcats = get_subcat_ids(array($top_category['id']));
foreach ($tables as $table => $field)
{
// what are the permissions user/group of the reference album
$query = '
SELECT '.$field.'
FROM '.$table.'
WHERE cat_id = '.$ref_cat_id.'
;';
$ref_access = array_from_query($query, $field);
if (count($ref_access) == 0)
{
$ref_access[] = -1;
}
// step 3, remove the inconsistant permissions from sub-albums
$query = '
DELETE
FROM '.$table.'
WHERE '.$field.' NOT IN ('.implode(',', $ref_access).')
AND cat_id IN ('.implode(',', $subcats).')
;';
pwg_query($query);
}
}
}
}
/**
* Returns all uppercats category ids of the given category ids.
*
* @param int[] $cat_ids
* @return int[]
*/
function get_uppercat_ids($cat_ids)
{
if (!is_array($cat_ids) or count($cat_ids) < 1)
{
return array();
}
$uppercats = array();
$query = '
SELECT uppercats
FROM '.CATEGORIES_TABLE.'
WHERE id IN ('.implode(',', $cat_ids).')
;';
$result = pwg_query($query);
while ($row = pwg_db_fetch_assoc($result))
{
$uppercats = array_merge($uppercats,
explode(',', $row['uppercats']));
}
$uppercats = array_unique($uppercats);
return $uppercats;
}
/**
* Set a new random representant to the categories.
*
* @param int[] $categories
*/
function set_random_representant($categories)
{
$datas = array();
foreach ($categories as $category_id)
{
$query = '
SELECT image_id
FROM '.IMAGE_CATEGORY_TABLE.'
WHERE category_id = '.$category_id.'
ORDER BY '.DB_RANDOM_FUNCTION.'()
LIMIT 1
;';
list($representative) = pwg_db_fetch_row(pwg_query($query));
$datas[] = array(
'id' => $category_id,
'representative_picture_id' => $representative,
);
}
mass_updates(
CATEGORIES_TABLE,
array(
'primary' => array('id'),
'update' => array('representative_picture_id')
),
$datas
);
}
/**
* Returns the fulldir for each given category id.
*
* @param int[] intcat_ids
* @return string[]
*/
function get_fulldirs($cat_ids)
{
if (count($cat_ids) == 0)
{
return array();
}
// caching directories of existing categories
global $cat_dirs; // used in preg_replace callback
$query = '
SELECT id, dir
FROM '.CATEGORIES_TABLE.'
WHERE dir IS NOT NULL
;';
$cat_dirs = simple_hash_from_query($query, 'id', 'dir');
// caching galleries_url
$query = '
SELECT id, galleries_url
FROM '.SITES_TABLE.'
;';
$galleries_url = simple_hash_from_query($query, 'id', 'galleries_url');
// categories : id, site_id, uppercats
$query = '
SELECT id, uppercats, site_id
FROM '.CATEGORIES_TABLE.'
WHERE dir IS NOT NULL
AND id IN (
'.wordwrap(implode(', ', $cat_ids), 80, "\n").')
;';
$categories = array_from_query($query);
// filling $cat_fulldirs
$cat_dirs_callback = create_function('$m', 'global $cat_dirs; return $cat_dirs[$m[1]];');
$cat_fulldirs = array();
foreach ($categories as $category)
{
$uppercats = str_replace(',', '/', $category['uppercats']);
$cat_fulldirs[$category['id']] = $galleries_url[$category['site_id']];
$cat_fulldirs[$category['id']].= preg_replace_callback(
'/(\d+)/',
$cat_dirs_callback,
$uppercats
);
}
unset($cat_dirs);
return $cat_fulldirs;
}
/**
* Returns an array with all file system files according to $conf['file_ext']
*
* @param string $path
* @param bool $recursive
* @return array
*/
function get_fs($path, $recursive = true)
{
global $conf;
// because isset is faster than in_array...
if (!isset($conf['flip_picture_ext']))
{
$conf['flip_picture_ext'] = array_flip($conf['picture_ext']);
}
if (!isset($conf['flip_file_ext']))
{
$conf['flip_file_ext'] = array_flip($conf['file_ext']);
}
$fs['elements'] = array();
$fs['thumbnails'] = array();
$fs['representatives'] = array();
$subdirs = array();
if (is_dir($path))
{
if ($contents = opendir($path))
{
while (($node = readdir($contents)) !== false)
{
if ($node == '.' or $node == '..') continue;
if (is_file($path.'/'.$node))
{
$extension = get_extension($node);
// if (in_array($extension, $conf['picture_ext']))
if (isset($conf['flip_picture_ext'][$extension]))
{
if (basename($path) == 'thumbnail')
{
$fs['thumbnails'][] = $path.'/'.$node;
}
else if (basename($path) == 'pwg_representative')
{
$fs['representatives'][] = $path.'/'.$node;
}
else
{
$fs['elements'][] = $path.'/'.$node;
}
}
// else if (in_array($extension, $conf['file_ext']))
else if (isset($conf['flip_file_ext'][$extension]))
{
$fs['elements'][] = $path.'/'.$node;
}
}
else if (is_dir($path.'/'.$node) and $node != 'pwg_high' and $recursive)
{
$subdirs[] = $node;
}
}
}
closedir($contents);
foreach ($subdirs as $subdir)
{
$tmp_fs = get_fs($path.'/'.$subdir);
$fs['elements'] = array_merge($fs['elements'],
$tmp_fs['elements']);
$fs['thumbnails'] = array_merge($fs['thumbnails'],
$tmp_fs['thumbnails']);
$fs['representatives'] = array_merge($fs['representatives'],
$tmp_fs['representatives']);
}
}
return $fs;
}
/**
* Synchronize base users list and related users list.
*
* Compares and synchronizes base users table (USERS_TABLE) with its child
* tables (USER_INFOS_TABLE, USER_ACCESS, USER_CACHE, USER_GROUP) : each
* base user must be present in child tables, users in child tables not
* present in base table must be deleted.
*/
function sync_users()
{
global $conf;
$query = '
SELECT '.$conf['user_fields']['id'].' AS id
FROM '.USERS_TABLE.'
;';
$base_users = array_from_query($query, 'id');
$query = '
SELECT user_id
FROM '.USER_INFOS_TABLE.'
;';
$infos_users = array_from_query($query, 'user_id');
// users present in $base_users and not in $infos_users must be added
$to_create = array_diff($base_users, $infos_users);
if (count($to_create) > 0)
{
create_user_infos($to_create);
}
// users present in user related tables must be present in the base user
// table
$tables = array(
USER_MAIL_NOTIFICATION_TABLE,
USER_FEED_TABLE,
USER_INFOS_TABLE,
USER_ACCESS_TABLE,
USER_CACHE_TABLE,
USER_CACHE_CATEGORIES_TABLE,
USER_GROUP_TABLE
);
foreach ($tables as $table)
{
$query = '
SELECT DISTINCT user_id
FROM '.$table.'
;';
$to_delete = array_diff(
array_from_query($query, 'user_id'),
$base_users
);
if (count($to_delete) > 0)
{
$query = '
DELETE
FROM '.$table.'
WHERE user_id in ('.implode(',', $to_delete).')
;';
pwg_query($query);
}
}
}
/**
* Updates categories.uppercats field based on categories.id + categories.id_uppercat
*/
function update_uppercats()
{
$query = '
SELECT id, id_uppercat, uppercats
FROM '.CATEGORIES_TABLE.'
;';
$cat_map = hash_from_query($query, 'id');
$datas = array();
foreach ($cat_map as $id => $cat)
{
$upper_list = array();
$uppercat = $id;
while ($uppercat)
{
$upper_list[] = $uppercat;
$uppercat = $cat_map[$uppercat]['id_uppercat'];
}
$new_uppercats = implode(',', array_reverse($upper_list));
if ($new_uppercats != $cat['uppercats'])
{
$datas[] = array(
'id' => $id,
'uppercats' => $new_uppercats
);
}
}
$fields = array('primary' => array('id'), 'update' => array('uppercats'));
mass_updates(CATEGORIES_TABLE, $fields, $datas);
}
/**
* Update images.path field base on images.file and storage categories fulldirs.
*/
function update_path()
{
$query = '
SELECT DISTINCT(storage_category_id)
FROM '.IMAGES_TABLE.'
WHERE storage_category_id IS NOT NULL
;';
$cat_ids = array_from_query($query, 'storage_category_id');
$fulldirs = get_fulldirs($cat_ids);
foreach ($cat_ids as $cat_id)
{
$query = '
UPDATE '.IMAGES_TABLE.'
SET path = '.pwg_db_concat(array("'".$fulldirs[$cat_id]."/'",'file')).'
WHERE storage_category_id = '.$cat_id.'
;';
pwg_query($query);
}
}
/**
* Change the parent category of the given categories. The categories are
* supposed virtual.
*
* @param int[] $category_ids
* @param int $new_parent (-1 for root)
*/
function move_categories($category_ids, $new_parent = -1)
{
global $page;
if (count($category_ids) == 0)
{
return;
}
$new_parent = $new_parent < 1 ? 'NULL' : $new_parent;
$categories = array();
$query = '
SELECT id, id_uppercat, status, uppercats
FROM '.CATEGORIES_TABLE.'
WHERE id IN ('.implode(',', $category_ids).')
;';
$result = pwg_query($query);
while ($row = pwg_db_fetch_assoc($result))
{
$categories[$row['id']] =
array(
'parent' => empty($row['id_uppercat']) ? 'NULL' : $row['id_uppercat'],
'status' => $row['status'],
'uppercats' => $row['uppercats']
);
}
// is the movement possible? The movement is impossible if you try to move
// a category in a sub-category or itself
if ('NULL' != $new_parent)
{
$query = '
SELECT uppercats
FROM '.CATEGORIES_TABLE.'
WHERE id = '.$new_parent.'
;';
list($new_parent_uppercats) = pwg_db_fetch_row(pwg_query($query));
foreach ($categories as $category)
{
// technically, you can't move a category with uppercats 12,125,13,14
// into a new parent category with uppercats 12,125,13,14,24
if (preg_match('/^'.$category['uppercats'].'(,|$)/', $new_parent_uppercats))
{
$page['errors'][] = l10n('You cannot move an album in its own sub album');
return;
}
}
}
$tables = array(
USER_ACCESS_TABLE => 'user_id',
GROUP_ACCESS_TABLE => 'group_id'
);
$query = '
UPDATE '.CATEGORIES_TABLE.'
SET id_uppercat = '.$new_parent.'
WHERE id IN ('.implode(',', $category_ids).')
;';
pwg_query($query);
update_uppercats();
update_global_rank();
// status and related permissions management
if ('NULL' == $new_parent)
{
$parent_status = 'public';
}
else
{
$query = '
SELECT status
FROM '.CATEGORIES_TABLE.'
WHERE id = '.$new_parent.'
;';
list($parent_status) = pwg_db_fetch_row(pwg_query($query));
}
if ('private' == $parent_status)
{
set_cat_status(array_keys($categories), 'private');
}
$page['infos'][] = l10n_dec(
'%d album moved', '%d albums moved',
count($categories)
);
}
/**
* Create a virtual category.
*
* @param string $category_name
* @param int $parent_id
* @param array $options
* - boolean commentable
* - boolean visible
* - string status
* - string comment
* - boolean inherit
* @return array ('info', 'id') or ('error')
*/
function create_virtual_category($category_name, $parent_id=null, $options=array())
{
global $conf, $user;
// is the given category name only containing blank spaces ?
if (preg_match('/^\s*$/', $category_name))
{
return array('error' => l10n('The name of an album must not be empty'));
}
$insert = array(
'name' => $category_name,
'rank' => 0,
'global_rank' => 0,
);
// is the album commentable?
if (isset($options['commentable']) and is_bool($options['commentable']))
{
$insert['commentable'] = $options['commentable'];
}
else
{
$insert['commentable'] = $conf['newcat_default_commentable'];
}
$insert['commentable'] = boolean_to_string($insert['commentable']);
// is the album temporarily locked? (only visible by administrators,
// whatever permissions) (may be overwritten if parent album is not
// visible)
if (isset($options['visible']) and is_bool($options['visible']))
{
$insert['visible'] = $options['visible'];
}
else
{
$insert['visible'] = $conf['newcat_default_visible'];
}
$insert['visible'] = boolean_to_string($insert['visible']);
// is the album private? (may be overwritten if parent album is private)
if (isset($options['status']) and 'private' == $options['status'])
{
$insert['status'] = 'private';
}
else
{
$insert['status'] = $conf['newcat_default_status'];
}
// any description for this album?
if (isset($options['comment']))
{
$insert['comment'] = $conf['allow_html_descriptions'] ? $options['comment'] : strip_tags($options['comment']);
}
if (!empty($parent_id) and is_numeric($parent_id))
{
$query = '
SELECT id, uppercats, global_rank, visible, status
FROM '.CATEGORIES_TABLE.'
WHERE id = '.$parent_id.'
;';
$parent = pwg_db_fetch_assoc(pwg_query($query));
$insert['id_uppercat'] = $parent['id'];
$insert['global_rank'] = $parent['global_rank'].'.'.$insert['rank'];
// at creation, must a category be visible or not ? Warning : if the
// parent category is invisible, the category is automatically create
// invisible. (invisible = locked)
if ('false' == $parent['visible'])
{
$insert['visible'] = 'false';
}
// at creation, must a category be public or private ? Warning : if the
// parent category is private, the category is automatically create
// private.
if ('private' == $parent['status'])
{
$insert['status'] = 'private';
}
$uppercats_prefix = $parent['uppercats'].',';
}
else
{
$uppercats_prefix = '';
}
// we have then to add the virtual category
single_insert(CATEGORIES_TABLE, $insert);
$inserted_id = pwg_db_insert_id(CATEGORIES_TABLE);
single_update(
CATEGORIES_TABLE,
array('uppercats' => $uppercats_prefix.$inserted_id),
array('id' => $inserted_id)
);
update_global_rank();
if ('private' == $insert['status'] and !empty($insert['id_uppercat']) and ((isset($options['inherit']) and $options['inherit']) or $conf['inheritance_by_default']) )
{
$query = '
SELECT group_id
FROM '.GROUP_ACCESS_TABLE.'
WHERE cat_id = '.$insert['id_uppercat'].'
;';
$granted_grps = array_from_query($query, 'group_id');
$inserts = array();
foreach ($granted_grps as $granted_grp)
{
$inserts[] = array(
'group_id' => $granted_grp,
'cat_id' => $inserted_id
);
}
mass_inserts(GROUP_ACCESS_TABLE, array('group_id','cat_id'), $inserts);
$query = '
SELECT user_id
FROM '.USER_ACCESS_TABLE.'
WHERE cat_id = '.$insert['id_uppercat'].'
;';
$granted_users = array_from_query($query, 'user_id');
add_permission_on_category($inserted_id, array_unique(array_merge(get_admins(), array($user['id']), $granted_users)));
}
else if ('private' == $insert['status'])
{
add_permission_on_category($inserted_id, array_unique(array_merge(get_admins(), array($user['id']))));
}
return array(
'info' => l10n('Virtual album added'),
'id' => $inserted_id,
);
}
/**
* Set tags to an image.
* Warning: given tags are all tags associated to the image, not additionnal tags.
*
* @param int[] $tags
* @param int $image_id
*/
function set_tags($tags, $image_id)
{
set_tags_of( array($image_id=>$tags) );
}
/**
* Add new tags to a set of images.
*
* @param int[] $tags
* @param int[] $images
*/
function add_tags($tags, $images)
{
if (count($tags) == 0 or count($images) == 0)
{
return;
}
// we can't insert twice the same {image_id,tag_id} so we must first
// delete lines we'll insert later
$query = '
DELETE
FROM '.IMAGE_TAG_TABLE.'
WHERE image_id IN ('.implode(',', $images).')
AND tag_id IN ('.implode(',', $tags).')
;';
pwg_query($query);
$inserts = array();
foreach ($images as $image_id)
{
foreach ( array_unique($tags) as $tag_id)
{
$inserts[] = array(
'image_id' => $image_id,
'tag_id' => $tag_id,
);
}
}
mass_inserts(
IMAGE_TAG_TABLE,
array_keys($inserts[0]),
$inserts
);
invalidate_user_cache_nb_tags();
}
/**
* Delete tags and tags associations.
*
* @param int[] $tag_ids
*/
function delete_tags($tag_ids)
{
if (is_numeric($tag_ids))
{
$tag_ids = array($tag_ids);
}
if (!is_array($tag_ids))
{
return false;
}
$query = '
DELETE
FROM '.IMAGE_TAG_TABLE.'
WHERE tag_id IN ('.implode(',', $tag_ids).')
;';
pwg_query($query);
$query = '
DELETE
FROM '.TAGS_TABLE.'
WHERE id IN ('.implode(',', $tag_ids).')
;';
pwg_query($query);
invalidate_user_cache_nb_tags();
}
/**
* Returns a tag id from its name. If nothing found, create a new tag.
*
* @param string $tag_name
* @return int
*/
function tag_id_from_tag_name($tag_name)
{
global $page;
$tag_name = trim($tag_name);
if (isset($page['tag_id_from_tag_name_cache'][$tag_name]))
{
return $page['tag_id_from_tag_name_cache'][$tag_name];
}
// search existing by exact name
$query = '
SELECT id
FROM '.TAGS_TABLE.'
WHERE name = \''.$tag_name.'\'
;';
if (count($existing_tags = array_from_query($query, 'id')) == 0)
{
// search existing by case insensitive name
$query = '
SELECT id
FROM '.TAGS_TABLE.'
WHERE CONVERT(name, CHAR) = \''.$tag_name.'\'
;';
if (count($existing_tags = array_from_query($query, 'id')) == 0)
{
$url_name = trigger_event('render_tag_url', $tag_name);
// search existing by url name
$query = '
SELECT id
FROM '.TAGS_TABLE.'
WHERE url_name = \''.$url_name.'\'
;';
if (count($existing_tags = array_from_query($query, 'id')) == 0)
{
mass_inserts(
TAGS_TABLE,
array('name', 'url_name'),
array(
array(
'name' => $tag_name,
'url_name' => $url_name,
)
)
);
$page['tag_id_from_tag_name_cache'][$tag_name] = pwg_db_insert_id(TAGS_TABLE);
invalidate_user_cache_nb_tags();
return $page['tag_id_from_tag_name_cache'][$tag_name];
}
}
}
$page['tag_id_from_tag_name_cache'][$tag_name] = $existing_tags[0];
return $page['tag_id_from_tag_name_cache'][$tag_name];
}
/**
* Set tags of images. Overwrites all existing associations.
*
* @param array $tags_of - keys are image ids, values are array of tag ids
*/
function set_tags_of($tags_of)
{
if (count($tags_of) > 0)
{
$query = '
DELETE
FROM '.IMAGE_TAG_TABLE.'
WHERE image_id IN ('.implode(',', array_keys($tags_of)).')
;';
pwg_query($query);
$inserts = array();
foreach ($tags_of as $image_id => $tag_ids)
{
foreach (array_unique($tag_ids) as $tag_id)
{
$inserts[] = array(
'image_id' => $image_id,
'tag_id' => $tag_id,
);
}
}
if (count($inserts))
{
mass_inserts(
IMAGE_TAG_TABLE,
array_keys($inserts[0]),
$inserts
);
}
invalidate_user_cache_nb_tags();
}
}
/**
* Associate a list of images to a list of categories.
* The function will not duplicate links and will preserve ranks.
*
* @param int[] $images
* @param int[] $categories
*/
function associate_images_to_categories($images, $categories)
{
if (count($images) == 0
or count($categories) == 0)
{
return false;
}
// get existing associations
$query = '
SELECT
image_id,
category_id
FROM '.IMAGE_CATEGORY_TABLE.'
WHERE image_id IN ('.implode(',', $images).')
AND category_id IN ('.implode(',', $categories).')
;';
$result = pwg_query($query);
$existing = array();
while ($row = pwg_db_fetch_assoc($result))
{
$existing[ $row['category_id'] ][] = $row['image_id'];
}
// get max rank of each categories
$query = '
SELECT
category_id,
MAX(rank) AS max_rank
FROM '.IMAGE_CATEGORY_TABLE.'
WHERE rank IS NOT NULL
AND category_id IN ('.implode(',', $categories).')
GROUP BY category_id
;';
$current_rank_of = simple_hash_from_query(
$query,
'category_id',
'max_rank'
);
// associate only not already associated images
$inserts = array();
foreach ($categories as $category_id)
{
if (!isset($current_rank_of[$category_id]))
{
$current_rank_of[$category_id] = 0;
}
if (!isset($existing[$category_id]))
{
$existing[$category_id] = array();
}
foreach ($images as $image_id)
{
if (!in_array($image_id, $existing[$category_id]))
{
$rank = ++$current_rank_of[$category_id];
$inserts[] = array(
'image_id' => $image_id,
'category_id' => $category_id,
'rank' => $rank,
);
}
}
}
if (count($inserts))
{
mass_inserts(
IMAGE_CATEGORY_TABLE,
array_keys($inserts[0]),
$inserts
);
update_category($categories);
}
}
/**
* Dissociate images from all old categories except their storage category and
* associate to new categories.
* This function will preserve ranks.
*
* @param int[] $images
* @param int[] $categories
*/
function move_images_to_categories($images, $categories)
{
if (count($images) == 0)
{
return false;
}
// let's first break links with all old albums but their "storage album"
$query = '
DELETE '.IMAGE_CATEGORY_TABLE.'.*
FROM '.IMAGE_CATEGORY_TABLE.'
JOIN '.IMAGES_TABLE.' ON image_id=id
WHERE id IN ('.implode(',', $images).')
';
if (is_array($categories) and count($categories) > 0)
{
$query.= '
AND category_id NOT IN ('.implode(',', $categories).')
';
}
$query.= '
AND (storage_category_id IS NULL OR storage_category_id != category_id)
;';
pwg_query($query);
if (is_array($categories) and count($categories) > 0)
{
associate_images_to_categories($images, $categories);
}
}
/**
* Associate images associated to a list of source categories to a list of
* destination categories.
*
* @param int[] $sources
* @param int[] $destinations
*/
function associate_categories_to_categories($sources, $destinations)
{
if (count($sources) == 0)
{
return false;
}
$query = '
SELECT image_id
FROM '.IMAGE_CATEGORY_TABLE.'
WHERE category_id IN ('.implode(',', $sources).')
;';
$images = array_from_query($query, 'image_id');
associate_images_to_categories($images, $destinations);
}
/**
* Refer main Piwigo URLs (currently PHPWG_DOMAIN domain)
*
* @return string[]
*/
function pwg_URL()
{
$urls = array(
'HOME' => PHPWG_URL,
'WIKI' => PHPWG_URL.'/doc',
'DEMO' => PHPWG_URL.'/demo',
'FORUM' => PHPWG_URL.'/forum',
'BUGS' => PHPWG_URL.'/bugs',
'EXTENSIONS' => PHPWG_URL.'/ext',
);
return $urls;
}
/**
* Invalidates cached data (permissions and category counts) for all users.
*/
function invalidate_user_cache($full = true)
{
if ($full)
{
$query = '
TRUNCATE TABLE '.USER_CACHE_CATEGORIES_TABLE.';';
pwg_query($query);
$query = '
TRUNCATE TABLE '.USER_CACHE_TABLE.';';
pwg_query($query);
}
else
{
$query = '
UPDATE '.USER_CACHE_TABLE.'
SET need_update = \'true\';';
pwg_query($query);
}
trigger_action('invalidate_user_cache', $full);
}
/**
* Invalidates cached tags counter for all users.
*/
function invalidate_user_cache_nb_tags()
{
global $user;
unset($user['nb_available_tags']);
$query = '
UPDATE '.USER_CACHE_TABLE.'
SET nb_available_tags = NULL';
pwg_query($query);
}
/**
* Adds the caracter set to a create table sql query.
* All CREATE TABLE queries must call this function
*
* @param string $query
* @return string
*/
function create_table_add_character_set($query)
{
defined('DB_CHARSET') or fatal_error('create_table_add_character_set DB_CHARSET undefined');
if ('DB_CHARSET'!='')
{
if ( version_compare(pwg_get_db_version(), '4.1.0', '<') )
{
return $query;
}
$charset_collate = " DEFAULT CHARACTER SET ".DB_CHARSET;
if (DB_COLLATE!='')
{
$charset_collate .= " COLLATE ".DB_COLLATE;
}
if ( is_array($query) )
{
foreach( $query as $id=>$q)
{
$q=trim($q);
$q=trim($q, ';');
if (preg_match('/^CREATE\s+TABLE/i',$q))
{
$q.=$charset_collate;
}
$q .= ';';
$query[$id] = $q;
}
}
else
{
$query=trim($query);
$query=trim($query, ';');
if (preg_match('/^CREATE\s+TABLE/i',$query))
{
$query.=$charset_collate;
}
$query .= ';';
}
}
return $query;
}
/**
* Returns access levels as array used on template with html_options functions.
*
* @param int $MinLevelAccess
* @param int $MaxLevelAccess
* @return array
*/
function get_user_access_level_html_options($MinLevelAccess = ACCESS_FREE, $MaxLevelAccess = ACCESS_CLOSED)
{
$tpl_options = array();
for ($level = $MinLevelAccess; $level <= $MaxLevelAccess; $level++)
{
$tpl_options[$level] = l10n(sprintf('ACCESS_%d', $level));
}
return $tpl_options;
}
/**
* returns a list of templates currently available in template-extension.
* Each .tpl file is extracted from template-extension.
*
* @param string $start (internal use)
* @return string[]
*/
function get_extents($start='')
{
if ($start == '') { $start = './template-extension'; }
$dir = opendir($start);
$extents = array();
while (($file = readdir($dir)) !== false)
{
if ( $file == '.' or $file == '..' or $file == '.svn') continue;
$path = $start . '/' . $file;
if (is_dir($path))
{
$extents = array_merge($extents, get_extents($path));
}
elseif ( !is_link($path) and file_exists($path)
and get_extension($path) == 'tpl' )
{
$extents[] = substr($path, 21);
}
}
return $extents;
}
/**
* Create a new tag.
*
* @param string $tag_name
* @return array ('id', info') or ('error')
*/
function create_tag($tag_name)
{
// does the tag already exists?
$query = '
SELECT id
FROM '.TAGS_TABLE.'
WHERE name = \''.$tag_name.'\'
;';
$existing_tags = array_from_query($query, 'id');
if (count($existing_tags) == 0)
{
single_insert(
TAGS_TABLE,
array(
'name' => $tag_name,
'url_name' => trigger_event('render_tag_url', $tag_name),
)
);
$inserted_id = pwg_db_insert_id(TAGS_TABLE);
return array(
'info' => l10n('Tag "%s" was added', stripslashes($tag_name)),
'id' => $inserted_id,
);
}
else
{
return array(
'error' => l10n('Tag "%s" already exists', stripslashes($tag_name))
);
}
}
/**
* Is the category accessible to the (Admin) user ?
* Note : if the user is not authorized to see this category, category jump
* will be replaced by admin cat_modify page
*
* @param int $category_id
* @return bool
*/
function cat_admin_access($category_id)
{
global $user;
// $filter['visible_categories'] and $filter['visible_images']
// are not used because it's not necessary (filter <> restriction)
if (in_array($category_id, explode(',', $user['forbidden_categories'])))
{
return false;
}
return true;
}
/**
* Retrieve data from external URL.
*
* @param string $src
* @param string|Ressource $dest - can be a file ressource or string
* @param array $get_data - data added to request url
* @param array $post_data - data transmitted with POST
* @param string $user_agent
* @param int $step (internal use)
* @return bool
*/
function fetchRemote($src, &$dest, $get_data=array(), $post_data=array(), $user_agent='Piwigo', $step=0)
{
// Try to retrieve data from local file?
if (!url_is_remote($src))
{
$content = @file_get_contents($src);
if ($content !== false)
{
is_resource($dest) ? @fwrite($dest, $content) : $dest = $content;
return true;
}
else
{
return false;
}
}
// After 3 redirections, return false
if ($step > 3) return false;
// Initialization
$method = empty($post_data) ? 'GET' : 'POST';
$request = empty($post_data) ? '' : http_build_query($post_data, '', '&');
if (!empty($get_data))
{
$src .= strpos($src, '?') === false ? '?' : '&';
$src .= http_build_query($get_data, '', '&');
}
// Initialize $dest
is_resource($dest) or $dest = '';
// Try curl to read remote file
if (function_exists('curl_init'))
{
$ch = @curl_init();
@curl_setopt($ch, CURLOPT_URL, $src);
@curl_setopt($ch, CURLOPT_HEADER, 1);
@curl_setopt($ch, CURLOPT_USERAGENT, $user_agent);
@curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
if ($method == 'POST')
{
@curl_setopt($ch, CURLOPT_POST, 1);
@curl_setopt($ch, CURLOPT_POSTFIELDS, $request);
}
$content = @curl_exec($ch);
$header_length = @curl_getinfo($ch, CURLINFO_HEADER_SIZE);
$status = @curl_getinfo($ch, CURLINFO_HTTP_CODE);
@curl_close($ch);
if ($content !== false and $status >= 200 and $status < 400)
{
if (preg_match('/Location:\s+?(.+)/', substr($content, 0, $header_length), $m))
{
return fetchRemote($m[1], $dest, array(), array(), $user_agent, $step+1);
}
$content = substr($content, $header_length);
is_resource($dest) ? @fwrite($dest, $content) : $dest = $content;
return true;
}
}
// Try file_get_contents to read remote file
if (ini_get('allow_url_fopen'))
{
$opts = array(
'http' => array(
'method' => $method,
'user_agent' => $user_agent,
)
);
if ($method == 'POST')
{
$opts['http']['content'] = $request;
}
$context = @stream_context_create($opts);
$content = @file_get_contents($src, false, $context);
if ($content !== false)
{
is_resource($dest) ? @fwrite($dest, $content) : $dest = $content;
return true;
}
}
// Try fsockopen to read remote file
$src = parse_url($src);
$host = $src['host'];
$path = isset($src['path']) ? $src['path'] : '/';
$path .= isset($src['query']) ? '?'.$src['query'] : '';
if (($s = @fsockopen($host,80,$errno,$errstr,5)) === false)
{
return false;
}
$http_request = $method." ".$path." HTTP/1.0\r\n";
$http_request .= "Host: ".$host."\r\n";
if ($method == 'POST')
{
$http_request .= "Content-Type: application/x-www-form-urlencoded;\r\n";
$http_request .= "Content-Length: ".strlen($request)."\r\n";
}
$http_request .= "User-Agent: ".$user_agent."\r\n";
$http_request .= "Accept: */*\r\n";
$http_request .= "\r\n";
$http_request .= $request;
fwrite($s, $http_request);
$i = 0;
$in_content = false;
while (!feof($s))
{
$line = fgets($s);
if (rtrim($line,"\r\n") == '' && !$in_content)
{
$in_content = true;
$i++;
continue;
}
if ($i == 0)
{
if (!preg_match('/HTTP\/(\\d\\.\\d)\\s*(\\d+)\\s*(.*)/',rtrim($line,"\r\n"), $m))
{
fclose($s);
return false;
}
$status = (integer) $m[2];
if ($status < 200 || $status >= 400)
{
fclose($s);
return false;
}
}
if (!$in_content)
{
if (preg_match('/Location:\s+?(.+)$/',rtrim($line,"\r\n"),$m))
{
fclose($s);
return fetchRemote(trim($m[1]),$dest,array(),array(),$user_agent,$step+1);
}
$i++;
continue;
}
is_resource($dest) ? @fwrite($dest, $line) : $dest .= $line;
$i++;
}
fclose($s);
return true;
}
/**
* Returns the groupname corresponding to the given group identifier if exists.
*
* @param int $group_id
* @return string|false
*/
function get_groupname($group_id)
{
$query = '
SELECT name
FROM '.GROUPS_TABLE.'
WHERE id = '.intval($group_id).'
;';
$result = pwg_query($query);
if (pwg_db_num_rows($result) > 0)
{
list($groupname) = pwg_db_fetch_row($result);
}
else
{
return false;
}
return $groupname;
}
/**
* Returns the username corresponding to the given user identifier if exists.
*
* @param int $user_id
* @return string|false
*/
function get_username($user_id)
{
global $conf;
$query = '
SELECT '.$conf['user_fields']['username'].'
FROM '.USERS_TABLE.'
WHERE '.$conf['user_fields']['id'].' = '.intval($user_id).'
;';
$result = pwg_query($query);
if (pwg_db_num_rows($result) > 0)
{
list($username) = pwg_db_fetch_row($result);
}
else
{
return false;
}
return stripslashes($username);
}
/**
* Get url on piwigo.org for newsletter subscription
*
* @param string $language (unused)
* @return string
*/
function get_newsletter_subscribe_base_url($language='en_UK')
{
return PHPWG_URL.'/announcement/subscribe/';
}
/**
* Return admin menu id for accordion.
*
* @param string $menu_page
* @return int
*/
function get_active_menu($menu_page)
{
global $page;
if (isset($page['active_menu']))
{
return $page['active_menu'];
}
switch ($menu_page)
{
case 'photo':
case 'photos_add':
case 'rating':
case 'tags':
case 'batch_manager':
return 0;
case 'album':
case 'cat_list':
case 'cat_move':
case 'cat_options':
case 'permalinks':
return 1;
case 'user_list':
case 'user_perm':
case 'group_list':
case 'group_perm':
case 'notification_by_mail':
return 2;
case 'plugins':
case 'plugin':
return 3;
case 'site_manager':
case 'site_update':
case 'stats':
case 'history':
case 'maintenance':
case 'comments':
case 'updates':
return 4;
case 'configuration':
case 'derivatives':
case 'extend_for_templates':
case 'menubar':
case 'themes':
case 'theme':
case 'languages':
return 5;
default:
return 0;
}
}
/**
* Get tags list from SQL query (ids are surrounded by ~~, for get_tag_ids()).
*
* @param string $query
* @param boolean $only_user_language - if true, only local name is returned for
* multilingual tags (if ExtendedDescription plugin is active)
* @return array[] ('id', 'name')
*/
function get_taglist($query, $only_user_language=true)
{
$result = pwg_query($query);
$taglist = array();
$altlist = array();
while ($row = pwg_db_fetch_assoc($result))
{
$raw_name = $row['name'];
$name = trigger_event('render_tag_name', $raw_name, $row);
$taglist[] = array(
'name' => $name,
'id' => '~~'.$row['id'].'~~',
);
if (!$only_user_language)
{
$alt_names = trigger_event('get_tag_alt_names', array(), $raw_name);
foreach( array_diff( array_unique($alt_names), array($name) ) as $alt)
{
$altlist[] = array(
'name' => $alt,
'id' => '~~'.$row['id'].'~~',
);
}
}
}
usort($taglist, 'tag_alpha_compare');
if (count($altlist))
{
usort($altlist, 'tag_alpha_compare');
$taglist = array_merge($taglist, $altlist);
}
return $taglist;
}
/**
* Get tags ids from a list of raw tags (existing tags or new tags).
*
* In $raw_tags we receive something like array('~~6~~', '~~59~~', 'New
* tag', 'Another new tag') The ~~34~~ means that it is an existing
* tag. We added the surrounding ~~ to permit creation of tags like "10"
* or "1234" (numeric characters only)
*
* @param string|string[] $raw_tags - array or comma separated string
* @param boolean $allow_create
* @return int[]
*/
function get_tag_ids($raw_tags, $allow_create=true)
{
$tag_ids = array();
if (!is_array($raw_tags))
{
$raw_tags = explode(',',$raw_tags);
}
foreach ($raw_tags as $raw_tag)
{
if (preg_match('/^~~(\d+)~~$/', $raw_tag, $matches))
{
$tag_ids[] = $matches[1];
}
elseif ($allow_create)
{
// we have to create a new tag
$tag_ids[] = tag_id_from_tag_name($raw_tag);
}
}
return $tag_ids;
}
/**
* Returns the argument_ids array with new sequenced keys based on related
* names. Sequence is not case sensitive.
* Warning: By definition, this function breaks original keys.
*
* @param int[] $elements_ids
* @param string[] $name - names of elements, indexed by ids
* @return int[]
*/
function order_by_name($element_ids, $name)
{
$ordered_element_ids = array();
foreach ($element_ids as $k_id => $element_id)
{
$key = strtolower($name[$element_id]) .'-'. $name[$element_id] .'-'. $k_id;
$ordered_element_ids[$key] = $element_id;
}
ksort($ordered_element_ids);
return $ordered_element_ids;
}
/**
* Grant access to a list of categories for a list of users.
*
* @param int[] $category_ids
* @param int[] $user_ids
*/
function add_permission_on_category($category_ids, $user_ids)
{
if (!is_array($category_ids))
{
$category_ids = array($category_ids);
}
if (!is_array($user_ids))
{
$user_ids = array($user_ids);
}
// check for emptiness
if (count($category_ids) == 0 or count($user_ids) == 0)
{
return;
}
// make sure categories are private and select uppercats or subcats
$cat_ids = get_uppercat_ids($category_ids);
if (isset($_POST['apply_on_sub']))
{
$cat_ids = array_merge($cat_ids, get_subcat_ids($category_ids));
}
$query = '
SELECT id
FROM '.CATEGORIES_TABLE.'
WHERE id IN ('.implode(',', $cat_ids).')
AND status = \'private\'
;';
$private_cats = array_from_query($query, 'id');
if (count($private_cats) == 0)
{
return;
}
$inserts = array();
foreach ($private_cats as $cat_id)
{
foreach ($user_ids as $user_id)
{
$inserts[] = array(
'user_id' => $user_id,
'cat_id' => $cat_id
);
}
}
mass_inserts(
USER_ACCESS_TABLE,
array('user_id','cat_id'),
$inserts,
array('ignore'=>true)
);
}
/**
* Returns the list of admin users.
*
* @param boolean $include_webmaster
* @return int[]
*/
function get_admins($include_webmaster=true)
{
$status_list = array('admin');
if ($include_webmaster)
{
$status_list[] = 'webmaster';
}
$query = '
SELECT
user_id
FROM '.USER_INFOS_TABLE.'
WHERE status in (\''.implode("','", $status_list).'\')
;';
return array_from_query($query, 'user_id');
}
/**
* Delete all derivative files for one or several types
*
* @param 'all'|int[] $types
*/
function clear_derivative_cache($types='all')
{
if ($types === 'all')
{
$types = ImageStdParams::get_all_types();
$types[] = IMG_CUSTOM;
}
elseif (!is_array($types))
{
$types = array($types);
}
for ($i=0; $i<count($types); $i++)
{
$type = $types[$i];
if ($type == IMG_CUSTOM)
{
$type = derivative_to_url($type).'[a-zA-Z0-9]+';
}
elseif (in_array($type, ImageStdParams::get_all_types()))
{
$type = derivative_to_url($type);
}
else
{//assume a custom type
$type = derivative_to_url(IMG_CUSTOM).'_'.$type;
}
$types[$i] = $type;
}
$pattern='#.*-';
if (count($types)>1)
{
$pattern .= '(' . implode('|',$types) . ')';
}
else
{
$pattern .= $types[0];
}
$pattern.='\.[a-zA-Z0-9]{3,4}$#';
if ($contents = @opendir(PHPWG_ROOT_PATH.PWG_DERIVATIVE_DIR))
{
while (($node = readdir($contents)) !== false)
{
if ($node != '.'
and $node != '..'
and is_dir(PHPWG_ROOT_PATH.PWG_DERIVATIVE_DIR.$node))
{
clear_derivative_cache_rec(PHPWG_ROOT_PATH.PWG_DERIVATIVE_DIR.$node, $pattern);
}
}
closedir($contents);
}
}
/**
* Used by clear_derivative_cache()
* @ignore
*/
function clear_derivative_cache_rec($path, $pattern)
{
$rmdir = true;
$rm_index = false;
if ($contents = opendir($path))
{
while (($node = readdir($contents)) !== false)
{
if ($node == '.' or $node == '..')
continue;
if (is_dir($path.'/'.$node))
{
$rmdir &= clear_derivative_cache_rec($path.'/'.$node, $pattern);
}
else
{
if (preg_match($pattern, $node))
{
unlink($path.'/'.$node);
}
elseif ($node=='index.htm')
{
$rm_index = true;
}
else
{
$rmdir = false;
}
}
}
closedir($contents);
if ($rmdir)
{
if ($rm_index)
{
unlink($path.'/index.htm');
}
clearstatcache();
@rmdir($path);
}
return $rmdir;
}
}
/**
* Deletes derivatives of a particular element
*
* @param array $infos ('path'[, 'representative_ext'])
* @param 'all'|int $type
*/
function delete_element_derivatives($infos, $type='all')
{
$path = $infos['path'];
if (!empty($infos['representative_ext']))
{
$path = original_to_representative( $path, $infos['representative_ext']);
}
if (substr_compare($path, '../', 0, 3)==0)
{
$path = substr($path, 3);
}
$dot = strrpos($path, '.');
if ($type=='all')
{
$pattern = '-*';
}
else
{
$pattern = '-'.derivative_to_url($type).'*';
}
$path = substr_replace($path, $pattern, $dot, 0);
if ( ($glob=glob(PHPWG_ROOT_PATH.PWG_DERIVATIVE_DIR.$path)) !== false)
{
foreach( $glob as $file)
{
@unlink($file);
}
}
}
/**
* Returns an array containing sub-directories, excluding ".svn"
*
* @param string $directory
* @return string[]
*/
function get_dirs($directory)
{
$sub_dirs = array();
if ($opendir = opendir($directory))
{
while ($file = readdir($opendir))
{
if ($file != '.'
and $file != '..'
and is_dir($directory.'/'.$file)
and $file != '.svn')
{
$sub_dirs[] = $file;
}
}
closedir($opendir);
}
return $sub_dirs;
}
/**
* Recursively delete a directory.
*
* @param string $path
* @param string $trash_path, try to move the directory to this path if it cannot be delete
*/
function deltree($path, $trash_path=null)
{
if (is_dir($path))
{
$fh = opendir($path);
while ($file = readdir($fh))
{
if ($file != '.' and $file != '..')
{
$pathfile = $path . '/' . $file;
if (is_dir($pathfile))
{
deltree($pathfile, $trash_path);
}
else
{
@unlink($pathfile);
}
}
}
closedir($fh);
if (@rmdir($path))
{
return true;
}
elseif (!empty($trash_path))
{
if (!is_dir($trash_path))
{
@mkgetdir($trash_path, MKGETDIR_RECURSIVE|MKGETDIR_DIE_ON_ERROR|MKGETDIR_PROTECT_HTACCESS);
}
while ($r = $trash_path . '/' . md5(uniqid(rand(), true)))
{
if (!is_dir($r))
{
@rename($path, $r);
break;
}
}
}
else
{
return false;
}
}
}
?>
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