egroupware/resources/inc/class.bo_resources.inc.php

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<?php
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/**
* eGroupWare - resources
*
* @license http://opensource.org/licenses/gpl-license.php GPL - GNU General Public License
* @package resources
* @link http://www.egroupware.org
* @author Cornelius Weiss <egw@von-und-zu-weiss.de>
* @author Lukas Weiss <wnz_gh05t@users.sourceforge.net>
* @version $Id$
*/
/**
* General business object for resources
*
* @package resources
*/
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class bo_resources
{
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var $vfs_basedir = '/resources/';
var $pictures_dir = '/resources/pictures/';
var $thumbs_dir = '/resources/pictures/thumbs/';
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var $resource_icons = '/resources/templates/default/images/resource_icons/';
var $debug = 0;
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function bo_resources()
{
$this->so =& CreateObject('resources.so_resources');
$this->acl =& CreateObject('resources.bo_acl');
$this->cats = $this->acl->egw_cats;
$this->vfs =& CreateObject('phpgwapi.vfs');
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$this->link =& CreateObject('phpgwapi.bolink');
$this->conf =& CreateObject('phpgwapi.config');
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$this->conf->read_repository();
$this->cal_right_transform = array(
EGW_ACL_CALREAD => EGW_ACL_READ,
EGW_ACL_DIRECT_BOOKING => EGW_ACL_READ | EGW_ACL_ADD | EGW_ACL_EDIT | EGW_ACL_DELETE,
EGW_ACL_CAT_ADMIN => EGW_ACL_READ | EGW_ACL_ADD | EGW_ACL_EDIT | EGW_ACL_DELETE,
);
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}
/**
* get rows for resources list
*
* Cornelius Weiss <egw@von-und-zu-weiss.de>
*/
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function get_rows($query,&$rows,&$readonlys)
{
if ($this->debug) _debug_array($query);
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$query['search'] = $query['search'] ? $query['search'] : '*';
$criteria = array('name' => $query['search'], 'short_description' => $query['search'], 'inventory_number' => $query['search']);
$read_onlys = 'res_id,name,short_description,quantity,useable,bookable,buyable,cat_id,location,storage_info';
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$accessory_of = $query['view_accs_of'] ? $query['view_accs_of'] : -1;
$filter = array('accessory_of' => $accessory_of);
if ($query['filter'])
{
$filter = $filter + array('cat_id' => $query['filter']);
}
else
{
$readcats = array_flip((array)$this->acl->get_cats(EGW_ACL_READ));
if($readcats) $filter = $filter + array('cat_id' => $readcats);
}
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if($query['show_bookable']) $filter = $filter + array('bookable' => true);
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$order_by = $query['order'] ? $query['order'].' '. $query['sort'] : '';
$start = (int)$query['start'];
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$rows = $this->so->search($criteria,$read_onlys,$order_by,'','',$empty=False,$op='OR',$start,$filter,$join='',$need_full_no_count=false);
$nr = $this->so->total;
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// we are called to serve bookable resources (e.g. calendar-dialog)
if($query['show_bookable'])
{
// This is somehow ugly, i know...
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foreach((array)$rows as $num => $resource)
{
$rows[$num]['default_qty'] = 1;
}
// we don't need all the following testing
return $nr;
}
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foreach((array)$rows as $num => $resource)
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{
if (!$this->acl->is_permitted($resource['cat_id'],EGW_ACL_EDIT))
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{
$readonlys["edit[$resource[res_id]]"] = true;
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}
if (!$this->acl->is_permitted($resource['cat_id'],EGW_ACL_DELETE))
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{
$readonlys["delete[$resource[res_id]]"] = true;
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}
if ((!$this->acl->is_permitted($resource['cat_id'],EGW_ACL_ADD)) || $accessory_of != -1)
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{
$readonlys["new_acc[$resource[res_id]]"] = true;
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}
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if (!$resource['bookable'] /* && calender-acl viewable */)
{
$readonlys["bookable[$resource[res_id]]"] = true;
$readonlys["calendar[$resource[res_id]]"] = true;
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}
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if (!$resource['buyable'])
{
$readonlys["buyable[$resource[res_id]]"] = true;
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}
$readonlys["view_acc[$resource[res_id]]"] = true;
$links = $this->link->get_links('resources',$resource['res_id']);
if(count($links) != 0 && $accessory_of == -1)
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{
foreach ($links as $link_num => $link)
{
if($link['app'] == 'resources')
{
if($this->so->get_value('accessory_of',$link['res_id']) != -1)
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{
$readonlys["view_acc[$resource[res_id]]"] = false;
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}
}
}
}
$rows[$num]['picture_thumb'] = $this->get_picture($resource['res_id']);
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$rows[$num]['admin'] = $this->acl->get_cat_admin($resource['cat_id']);
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}
return $nr;
}
/**
* reads a resource exept binary datas
*
* Cornelius Weiss <egw@von-und-zu-weiss.de>
* @param int $res_id resource id
* @return array with key => value or false if not found or allowed
*/
function read($res_id)
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{
if(!$this->acl->is_permitted($this->so->get_value('cat_id',$res_id),EGW_ACL_READ))
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{
echo lang('You are not permitted to get information about this resource!') . '<br>';
echo lang('Notify your administrator to correct this situation') . '<br>';
return false;
}
return $this->so->read(array('res_id' => $res_id));
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}
/**
* saves a resource. pictures are saved in vfs
*
* Cornelius Weiss <egw@von-und-zu-weiss.de>
* @param array $resource array with key => value of all needed datas
* @return string msg if somthing went wrong; nothing if all right
*/
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function save($resource)
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{
if(!$this->acl->is_permitted($resource['cat_id'],EGW_ACL_EDIT))
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{
return lang('You are not permitted to edit this reource!');
}
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// we need an id to save pictures and make links...
if(!$resource['res_id'])
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{
$resource['res_id'] = $this->so->save($resource);
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}
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switch ($resource['picture_src'])
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{
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case 'own_src':
$vfs_data = array('string' => $this->pictures_dir.$resource['res_id'].'.jpg','relatives' => array(RELATIVE_ROOT));
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if($resource['own_file']['size'] > 0)
{
$msg = $this->save_picture($resource['own_file'],$resource['res_id']);
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break;
}
elseif($this->vfs->file_exists($vfs_data))
{
break;
}
$resource['picture_src'] = 'cat_src';
case 'cat_src':
break;
case 'gen_src':
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$resource['picture_src'] = $resource['gen_src_list'];
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break;
default:
if($resource['own_file']['size'] > 0)
{
$resource['picture_src'] = 'own_src';
$msg = $this->save_picture($resource['own_file'],$resource['res_id']);
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}
else
{
$resource['picture_src'] = 'cat_src';
}
}
// somthing went wrong on saving own picture
if($msg)
{
return $msg;
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}
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// delete old pictures
if($resource['picture_src'] != 'own_src')
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{
$this->remove_picture($resource['res_id']);
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}
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// save links
if(is_array($resource['link_to']['to_id']))
{
$this->link->link('resources',$resource['res_id'],$resource['link_to']['to_id']);
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}
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if($resource['accessory_of'] != -1)
{
$this->link->link('resources',$resource['res_id'],'resources',$resource['accessory_of']);
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}
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if(!empty($resource['res_id']) && $this->so->get_value("cat_id",$resource['res_id']) != $resource['cat_id'] && $resource['accessory_of'] == -1)
{
$accessories = $this->get_acc_list($resource['res_id']);
foreach($accessories as $accessory => $name)
{
$acc = $this->so->read($accessory);
$acc['cat_id'] = $resource['cat_id'];
$this->so->data = $acc;
$this->so->save();
}
}
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return $this->so->save($resource) ? false : lang('Something went wrong by saving resource');
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}
/**
* deletes resource including pictures and links
*
* @author Lukas Weiss <wnz_gh05t@users.sourceforge.net>
* @param int $res_id id of resource
*/
function delete($res_id)
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{
if(!$this->acl->is_permitted($this->so->get_value('cat_id',$res_id),EGW_ACL_DELETE))
{
return lang('You are not permitted to delete this reource!');
}
if ($this->so->delete(array('res_id'=>$res_id)))
{
$this->remove_picture($res_id);
$this->link->unlink(0,'resources',$res_id);
// delete the resource from the calendar
ExecMethod('calendar.socal.change_delete_user','r'.$res_id);
return false;
}
return lang('Something went wrong by deleting resource');
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}
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/**
* gets list of accessories for resource
*
* Cornelius Weiss <egw@von-und-zu-weiss.de>
* @param int $res_id id of resource
* @return array
*/
function get_acc_list($res_id)
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{
if($res_id < 1){return;}
$data = $this->so->search('','res_id,name','','','','','',$start,array('accessory_of' => $res_id),'',$need_full_no_count=true);
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foreach($data as $num => $resource)
{
$acc_list[$resource['res_id']] = $resource['name'];
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}
return $acc_list;
}
/**
* returns info about resource for calender
* @author Cornelius Weiss<egw@von-und-zu-weiss.de>
* @param int/array $res_id single id or array $num => $res_id
* @return array
*/
function get_calendar_info($res_id)
{
//echo "<p>bo_resources::get_calendar_info(".print_r($res_id,true).")</p>\n";
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if(!is_array($res_id) && $res_id < 1) return;
$data = $this->so->search(array('res_id' => $res_id),'res_id,cat_id,name,useable');
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foreach($data as $num => $resource)
{
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$data[$num]['rights'] = false;
foreach($this->cal_right_transform as $res_right => $cal_right)
{
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if($this->acl->is_permitted($resource['cat_id'],$res_right))
{
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$data[$num]['rights'] = $cal_right;
}
}
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$data[$num]['responsible'] = $this->acl->get_cat_admin($resource['cat_id']);
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}
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return $data;
}
/**
* returns status for a new calendar entry depending on resources ACL
* @author Cornelius Weiss <egw@von-und-zu-weiss.de>
* @param int $res_id single id
* @return array
*/
function get_calendar_new_status($res_id)
{
$data = $this->so->search(array('res_id' => $res_id),'res_id,cat_id,bookable');
if($data[0]['bookable'] == 0) return 'x';
return $this->acl->is_permitted($data[0]['cat_id'],EGW_ACL_DIRECT_BOOKING) ? A : U;
}
/**
* @author Cornelius Weiss <egw@von-und-zu-weiss.de>
* query infolog for entries matching $pattern
*
*/
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function link_query( $pattern )
{
$criteria = array('name' => $pattern, 'short_description' => $pattern);
$only_keys = 'res_id,name,short_description';
$filter = array(
'cat_id' => array_flip((array)$this->acl->get_cats(EGW_ACL_READ)),
//'accessory_of' => '-1'
);
$data = $this->so->search($criteria,$only_keys,$order_by='',$extra_cols='',$wildcard='%',$empty,$op='OR','',$filter);
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foreach($data as $num => $resource)
{
if($num != 0)
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{
$list[$resource['res_id']] = $resource['name']. ($resource['short_description'] ? ', ['.$resource['short_description'].']':'');
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}
}
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return $list;
}
/**
* @author Cornelius Weiss <egw@von-und-zu-weiss.de>
* get title for an infolog entry identified by $res_id
*
* @return string/boolean string with title, null if resource does not exist or false if no perms to view it
*/
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function link_title( $resource )
{
if (!is_array($resource))
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{
if (!($resource = $this->so->read(array('res_id' => $resource)))) return null;
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}
if(!$this->acl->is_permitted($resource['cat_id'],EGW_ACL_READ)) return false;
return $resource['name']. ($resource['short_description'] ? ', ['.$resource['short_description'].']':'');
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}
/**
* resizes and saves an pictures in vfs
*
* Cornelius Weiss <egw@von-und-zu-weiss.de>
* @param array $file array with key => value
* @param int $resource_id
* @return mixed string with msg if somthing went wrong; nothing if all right
* TODO make thumb an picture sizes choosable by preferences
*/
function save_picture($file,$resouce_id)
{
// test upload dir
$vfs_data = array('string'=>$this->vfs_basedir,'relatives'=>array(RELATIVE_ROOT));
if (!($this->vfs->file_exists($vfs_data)))
{
$this->vfs->override_acl = 1;
$this->vfs->mkdir($vfs_data);
$vfs_data['string'] = $this->pictures_dir;
$this->vfs->mkdir($vfs_data);
$vfs_data['string'] = $this->thumbs_dir;
$this->vfs->mkdir($vfs_data);
$this->vfs->override_acl = 0;
}
switch($file['type'])
{
case 'image/gif':
$src_img = imagecreatefromgif($file['tmp_name']);
break;
case 'image/jpeg':
case 'image/pjpeg':
$src_img = imagecreatefromjpeg($file['tmp_name']);
break;
case 'image/png':
case 'image/x-png':
$src_img = imagecreatefrompng($file['tmp_name']);
break;
default:
return lang('Picture type is not supported, sorry!');
}
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$src_img_size = getimagesize($file['tmp_name']);
$dst_img_size = array( 0 => 320, 1 => 240);
$thumb_size = array( 0 => 64, 1 => 48);
$tmp_dir = $GLOBALS['egw_info']['server']['temp_dir'].'/';
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if($src_img_size[0] > 64 || $src_img_size[1] > 48)
{
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$f = $thumb_size[0] / $src_img_size[0];
$f = $thumb_size[1] / $src_img_size[1] < $f ? $thumb_size[1] / $src_img_size[1] : $f;
$dst_img = imagecreatetruecolor($src_img_size[0] * $f, $src_img_size[1] * $f);
imagecopyresized($dst_img,$src_img,0,0,0,0,$src_img_size[0] * $f,$src_img_size[1] * $f,$src_img_size[0],$src_img_size[1]);
imagejpeg($dst_img,$tmp_dir.$resouce_id.'.thumb.jpg');
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if($src_img_size[0] > $dst_img_size[0] || $src_img_size[1] > $dst_img_size[1])
{
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$f = $dst_img_size[0] / $src_img_size[0];
$f = $dst_img_size[1] / $src_img_size[1] < $f ? $dst_img_size[1] / $src_img_size[1] : $f;
$dst_img = imagecreatetruecolor($src_img_size[0] * $f, $src_img_size[1] * $f);
imagecopyresized($dst_img,$src_img,0,0,0,0,$src_img_size[0] * $f,$src_img_size[1] * $f,$src_img_size[0],$src_img_size[1]);
imagejpeg($dst_img,$tmp_dir.$resouce_id.'.jpg');
}
else
{
imagejpeg($src_img,$tmp_dir.$resouce_id.'.jpg');
}
imagedestroy($dst_img);
}
else
{
imagejpeg($src_img,$tmp_dir.$resouce_id.'.jpg');
imagejpeg($src_img,$tmp_dir.$resouce_id.'.thumb.jpg');
}
imagedestroy($src_img);
$this->vfs->override_acl = 1;
$this->vfs->cp(array(
'from' => $tmp_dir.$resouce_id.'.jpg',
'to' => $this->pictures_dir.$resouce_id.'.jpg',
'relatives' => array(RELATIVE_NONE|VFS_REAL,RELATIVE_ROOT)
));
$this->vfs->set_attributes(array(
'string' => $this->pictures_dir.$resouce_id.'.jpg',
'relatives' => array (RELATIVE_ROOT),
'attributes' => array (
'mime_type' => 'image/jpeg',
'comment' => 'picture of resource no.'.$resouce_id,
'app' => $GLOBALS['egw_info']['flags']['currentapp']
)));
$this->vfs->cp(array(
'from' => $tmp_dir.$resouce_id.'.thumb.jpg',
'to' => $this->thumbs_dir.$resouce_id.'.jpg',
'relatives' => array(RELATIVE_NONE|VFS_REAL,RELATIVE_ROOT)
));
$this->vfs->set_attributes(array(
'string' => $this->thumbs_dir.$resouce_id.'.jpg',
'relatives' => array (RELATIVE_ROOT),
'attributes' => array (
'mime_type' => 'image/jpeg',
'comment' => 'thumbnail of resource no.'.$resouce_id,
'app' => $GLOBALS['egw_info']['flags']['currentapp']
)));
$this->vfs->override_acl = 0;
return;
}
/**
* get resource picture either from vfs or from symlink
* Cornelius Weiss <egw@von-und-zu-weiss.de>
* @param int $res_id id of resource
* @param bool $size false = thumb, true = full pic
* @return string url of picture
*/
function get_picture($res_id=0,$size=false)
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{
if ($res_id > 0)
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{
$src = $this->so->get_value('picture_src',$res_id);
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}
switch($src)
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{
case 'own_src':
$picture = $this->conf->config_data['dont_use_vfs'] ? $GLOBALS['egw_info']['server']['webserver_url'] : 'vfs:';
$picture .= $size ? $this->pictures_dir.$res_id.'.jpg' : $this->thumbs_dir.$res_id.'.jpg';
break;
case 'cat_src':
list($picture) = $this->cats->return_single($this->so->get_value('cat_id',$res_id));
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$picture = unserialize($picture['data']);
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if($picture['icon'])
{
$picture = $GLOBALS['egw_info']['server']['webserver_url'].'/phpgwapi/images/'.$picture['icon'];
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break;
}
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case 'gen_src':
default :
$picture = $GLOBALS['egw_info']['server']['webserver_url'].$this->resource_icons;
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$picture .= strstr($src,'.') ? $src : 'generic.png';
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}
return $picture;
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}
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/**
* remove_picture
* removes picture from vfs
*
* Cornelius Weiss <egw@von-und-zu-weiss.de>
* @param int $res_id id of resource
* @return bool succsess or not
*/
function remove_picture($res_id)
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{
$vfs_data = array('string' => $this->pictures_dir.$res_id.'.jpg','relatives' => array(RELATIVE_ROOT));
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$this->vfs->override_acl = 1;
if($this->vfs->file_exists($vfs_data))
{
$this->vfs->rm($vfs_data);
$vfs_data['string'] = $this->thumbs_dir.$res_id.'.jpg';
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$this->vfs->rm($vfs_data);
}
$this->vfs->override_acl = 0;
}
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/**
* get_genpicturelist
* gets all pictures from 'generic picutres dir' in selectbox style for eTemplate
*
* Cornelius Weiss <egw@von-und-zu-weiss.de>
* @return array directory contens in eTemplates selectbox style
*/
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function get_genpicturelist()
{
$icons['generic.png'] = lang('gernal resource');
$dir = dir(EGW_SERVER_ROOT.$this->resource_icons);
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while($file = $dir->read())
{
if (preg_match('/\\.(png|gif|jpe?g)$/i',$file) && $file != 'generic.png')
{
$icons[$file] = substr($file,0,strpos($file,'.'));
}
}
$dir->close();
return $icons;
}
}