egroupware/mail/inc/class.mail_tree.inc.php

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<?php
/**
* EGroupware - Mail - tree worker class
*
* @link http://www.egroupware.org
* @package mail
* @author Hadi Nategh [hn@stylite.de]
* @copyright (c) 2015 by Stylite AG <info-AT-stylite.de>
* @license http://opensource.org/licenses/gpl-license.php GPL - GNU General Public License
* @version $Id:$
*/
use EGroupware\Api\Mail;
use EGroupware\Api\Etemplate\Widget\Tree;
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/**
* Mail tree worker class
* -provides backend functionality for folder tree
* -provides classes that may be used by other apps too
*
*/
class mail_tree
{
/**
* delimiter - used to separate acc_id from mailbox / folder-tree-structure
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*
* @var string
*/
const DELIMITER = Mail::DELIMITER;
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/**
* Icons used for nodes different states
*
* @var array
*/
static $leafImages = array(
'folderNoSelectClosed' => "folderNoSelectClosed",
'folderNoSelectOpen' => "folderNoSelectOpen",
'folderOpen' => "folderOpen",
'folderClosed' => "MailFolderClosed",
'folderLeaf' => "MailFolderPlain",
'folderHome' => "kfm_home",
'folderAccount' => "thunderbird",
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);
/**
* Instance of mail_ui class
*
* @var mail_ui
*/
var $ui;
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/**
* Mail tree constructor
*
* @param mail_ui $mail_ui
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*/
function __construct(mail_ui $mail_ui)
{
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$this->ui = $mail_ui;
// check images available in png or svg
foreach(self::$leafImages as &$image)
{
if (strpos($image, '.') === false)
{
$image = basename($img=common::image('mail', 'dhtmlxtree/'.$image));
}
}
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}
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/**
*
* Structs an array of fake INBOX to show as an error node
* @param string $_profileID icServer profile id
* @param string $_err error message to be shown on tree node
* @param mixed $_path
* @param mixed $_parent
* @return array returns an array of tree node
*/
static function treeLeafNoConnectionArray($_profileID, $_err, $_path, $_parent)
{
$baseNode = array('id' => $_profileID);
$leaf = array(
'id' => $_profileID.self::DELIMITER.'INBOX',
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'text' => $_err,
'tooltip' => $_err,
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'im0' => self::$leafImages["folderNoSelectClosed"],
'im1' => self::$leafImages["folderNoSelectOpen"],
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'im2' => self::$leafImages["folderNoSelectClosed"],
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'path'=> $_path,
'parent' => $_parent
);
self::setOutStructure($leaf, $baseNode, self::DELIMITER);
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return ($baseNode?$baseNode:array( // fallback not connected array
'id'=>0,
'item'=> array(
'text'=>'INBOX',
'tooltip'=>'INBOX'.' '.lang('(not connected)'),
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'im0'=> self::$leafImages['folderHome']
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)
)
);
}
/**
* Check if a given node has children attribute set
*
* @param array $_node array of a node
* @return int returns 1 if it has children flag set otherwise 0
*/
private static function nodeHasChildren ($_node)
{
$hasChildren = 0;
if (in_array('\haschildren', $_node['ATTRIBUTES']) ||
in_array('\Haschildren', $_node['ATTRIBUTES']) ||
in_array('\HasChildren', $_node['ATTRIBUTES'])) $hasChildren = 1;
return $hasChildren;
}
/**
* Check if the given tree id is account node (means root)
*
* @param type $_node a tree id node
* @return boolean returns true if the node is account node otherwise false
*/
private static function isAccountNode ($_node)
{
list(,$leaf) = explode(self::DELIMITER, $_node);
if ($leaf || $_node == null) return false;
return true;
}
/**
* Calculate node level form the root
* @param type $_path tree node full path, e.g. INBOX/Drafts
*
* @return int returns node level distance from the root,
* returns false if something goes wrong
*/
private static function getNodeLevel($_path, $_delimiter = '.')
{
$parts = explode($_delimiter, $_path);
if (is_array($parts))
{
return count($parts);
}
return false;
}
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/**
* getTree provides tree structure regarding to selected node
*
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* @param string $_parent = null no parent node means root with the first level of folders
* @param string $_profileID = '' icServer id
* @param int|boolean $_openTopLevel = 1 Open top level folders on load if it's set to 1|true,
* false|0 leaves them in closed state
* @param $_noCheckboxNS = false no checkbox for namesapaces makes sure to not put checkbox for namespaces node
* @param boolean $_subscribedOnly = false get only subscribed folders
* @param boolean $_allInOneGo = false, true will get all folders (dependes on subscribedOnly option) of the account in one go
* @param boolean $_checkSubscribed = true, pre-check checkboxes of subscribed folders
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*
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* @return array returns an array of mail tree structure according to provided node
*/
function getTree ($_parent = null, $_profileID = '', $_openTopLevel = 1, $_noCheckboxNS = false, $_subscribedOnly= false, $_allInOneGo = false, $_checkSubscribed = true)
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{
//Init mail folders
$tree = array(Tree::ID=> $_parent?$_parent:0,Tree::CHILDREN => array());
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$hDelimiter = $this->ui->mail_bo->getHierarchyDelimiter();
if ($_parent) list($_profileID) = explode(self::DELIMITER, $_parent);
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if (is_numeric($_profileID) && $_profileID != $this->ui->mail_bo->profileID)
{
try
{
$this->ui->changeProfile($_profileID);
} catch (Exception $ex) {
return self::treeLeafNoConnectionArray($_profileID, $ex->getMessage(),array($_profileID), '');
}
}
try
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{
// User defined folders based on account
$definedFolders = array(
'Trash' => $this->ui->mail_bo->getTrashFolder(false),
'Templates' => $this->ui->mail_bo->getTemplateFolder(false),
'Drafts' => $this->ui->mail_bo->getDraftFolder(false),
'Sent' => $this->ui->mail_bo->getSentFolder(false),
'Junk' => $this->ui->mail_bo->getJunkFolder(false),
'Outbox' => $this->ui->mail_bo->getOutboxFolder(false),
);
if ($_parent && !self::isAccountNode($_parent)) // Single node loader
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{
$nodeInfo = Mail::pathToFolderData($_parent, $hDelimiter);
$folders = $this->ui->mail_bo->getFolderArrays($nodeInfo['mailbox'],false,$_allInOneGo?0:2, $_subscribedOnly);
$childrenNode = array();
foreach ($folders as &$node)
{
$nodeId = $_profileID.self::DELIMITER.$node['MAILBOX'];
$nodeData = Mail::pathToFolderData($nodeId, $node['delimiter']);
$childrenNode[] = array(
Tree::ID=> $nodeId,
Tree::AUTOLOAD_CHILDREN => $_allInOneGo?false:self::nodeHasChildren($node),
Tree::CHILDREN =>array(),
Tree::LABEL => $nodeData['text'],
Tree::TOOLTIP => $nodeData['tooltip'],
Tree::IMAGE_LEAF => self::$leafImages['folderLeaf'],
Tree::IMAGE_FOLDER_OPEN => self::$leafImages['folderOpen'],
Tree::IMAGE_FOLDER_CLOSED => self::$leafImages['folderClosed'],
Tree::CHECKED => $_checkSubscribed?$node['SUBSCRIBED']:false,
'parent' => $_parent
);
}
$tree[Tree::CHILDREN] = $childrenNode;
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}
else //Top Level Nodes loader
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{
if (self::isAccountNode($_parent)) // An account called for open
{
$_openTopLevel = 1;
$tree = self::getAccountsRootNode($_profileID, $_noCheckboxNS, $_openTopLevel);
}
else // Initial accounts|root nodes
{
$tree = self::getAccountsRootNode($_profileID, $_noCheckboxNS, $_openTopLevel);
if (!$_profileID && !$_openTopLevel) return $tree;
}
//List of folders
$foldersList = $this->ui->mail_bo->getFolderArrays(null, true, $_allInOneGo?0:2,$_subscribedOnly, false);
foreach ($foldersList as &$folder)
{
$path = $parent = $parts = explode($folder['delimiter'], $folder['MAILBOX']);
array_pop($parent);
array_unshift($path, $_profileID);
$data = array(
Tree::ID=>$_profileID.self::DELIMITER.$folder['MAILBOX'],
Tree::AUTOLOAD_CHILDREN => $_allInOneGo?false:self::nodeHasChildren($folder),
Tree::CHILDREN =>array(),
Tree::LABEL =>lang($folder['MAILBOX']),
Tree::OPEN => self::getNodeLevel($folder['MAILBOX'], $folder['delimiter']) <= $_openTopLevel?1:0,
Tree::TOOLTIP => lang($folder['MAILBOX']),
Tree::CHECKED => $_checkSubscribed?$folder['SUBSCRIBED']:false,
Tree::NOCHECKBOX => 0,
'parent' => $parent?$_profileID.self::DELIMITER.implode($folder['delimiter'], $parent):$_profileID,
'path' => $path,
'folderarray' => $folder
);
// Set Acl capability for INBOX
if ($folder['MAILBOX'] === "INBOX")
{
$data['data'] = array('acl' => $this->ui->mail_bo->icServer->queryCapability('ACL'));
$data[Tree::NOCHECKBOX] = $_noCheckboxNS;
}
else
{
//Do not open Initially other folders but INBOX
$data[Tree::OPEN] = 0;
}
self::setOutStructure($data, $tree, $folder['delimiter'], true, $this->ui->mail_bo->_getNameSpaces(), $definedFolders);
}
// Structs children of account root node. Used for mail index tree when we do autoloading on account id
if (self::isAccountNode($_parent))
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{
$tree = array(
Tree::ID => (string)$_parent,
Tree::CHILDREN => $tree[Tree::CHILDREN][0][Tree::CHILDREN],
Tree::LABEL => $tree[Tree::CHILDREN][0][Tree::LABEL],
Tree::IMAGE_LEAF => $tree[Tree::CHILDREN][0][Tree::IMAGE_LEAF],
Tree::IMAGE_FOLDER_OPEN => $tree[Tree::CHILDREN][0][Tree::IMAGE_FOLDER_OPEN],
Tree::IMAGE_FOLDER_CLOSED => $tree[Tree::CHILDREN][0][Tree::IMAGE_FOLDER_CLOSED],
Tree::OPEN => 1,
Tree::TOOLTIP => $tree[Tree::CHILDREN][0][Tree::TOOLTIP],
Tree::AUTOLOAD_CHILDREN => 1,
'data' => $tree[Tree::CHILDREN][0]['data']
);
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}
}
}
catch (Exception $ex) // Catch exceptions
{
//mail_ui::callWizard($ex->getMessage(), false, 'error');
return self::treeLeafNoConnectionArray($_profileID, $ex->getMessage(),array($_profileID), '');
}
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return $tree;
}
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/**
* setOutStructure - helper function to transform the folderObjectList to dhtmlXTreeObject requirements
*
* @param array $data data to be processed
* @param array &$out, out array
* @param string $del needed as glue for parent/child operation / comparsion
* @param boolean $createMissingParents a missing parent, instead of throwing an exception
* @param array $nameSpace used to check on creation of nodes in namespaces other than personal
* as clearance for access may be limited to a single branch-node of a tree
* @return void
*/
static function setOutStructure($data, &$out, $del='.', $createMissingParents=true, $nameSpace=array(), $definedFolders= array())
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{
//error_log(__METHOD__."(".array2string($data).', '.array2string($out).", '$del')");
$components = $data['path'];
array_pop($components); // remove own name
$insert = &$out;
$parents = array();
foreach($components as $component)
{
if (count($parents)>1)
{
$helper = array_slice($parents,1,null,true);
$parent = $parents[0].self::DELIMITER.implode($del, $helper);
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if ($parent) $parent .= $del;
}
else
{
$parent = implode(self::DELIMITER, $parents);
if ($parent) $parent .= self::DELIMITER;
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}
if (!is_array($insert) || !isset($insert['item']))
{
// throwing an exeption here seems to be unrecoverable,
// even if the cause is a something that can be handeled by the mailserver
if (mail_bo::$debug) error_log(__METHOD__.':'.__LINE__." id=$data[id]: Parent '$parent' of '$component' not found!");
// should we hit the break? if in personal: sure, something is wrong with the folderstructure
// if in shared or others we may proceed as access to folders may very well be limited to
// a single folder within the tree
$break = true;
foreach ($nameSpace as $nsp)
{
// if (appropriately padded) namespace prefix of (others or shared) is the leading part of parent
// we want to create the node in question as we meet the above considerations
if ($nsp['type']!='personal' && $nsp['prefix_present'] && stripos($parent,$data['path'][0].self::DELIMITER.$nsp['prefix'])===0)
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{
if (mail_bo::$debug) error_log(__METHOD__.__LINE__.' about to create:'.$parent.' in '.$data['path'][0].self::DELIMITER.$nsp['prefix']);
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$break=false;
}
}
if ($break) break;
}
if ($insert['item'])
{
foreach($insert['item'] as &$item)
{
if ($item['id'] == $parent.$component)
{
$insert =& $item;
break;
}
}
}
if ($item['id'] != $parent.$component)
{
if ($createMissingParents)
{
unset($item);
$item = array(
'id' => $parent.$component,
'text' => $component,
'im0' => self::$leafImages["folderNoSelectClosed"],
'im1' => self::$leafImages["folderNoSelectOpen"],
'im2' => self::$leafImages["folderNoSelectClosed"],
'tooltip' => lang('no access')
);
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$insert['item'][] =& $item;
$insert =& $item;
}
else
{
throw new egw_exception_assertion_failed(__METHOD__.':'.__LINE__.": id=$data[id]: Parent '$parent' '$component' not found!");
}
}
$parents[] = $component;
}
if ($data['folderarray']['delimiter'] && $data['folderarray']['MAILBOX'])
{
$path = explode($data['folderarray']['delimiter'], $data['folderarray']['MAILBOX']);
$folderName = array_pop($path);
if ($data['folderarray']['MAILBOX'] === "INBOX")
{
$data[Tree::IMAGE_LEAF] = self::$leafImages['folderHome'];
$data[Tree::IMAGE_FOLDER_OPEN] = self::$leafImages['folderHome'];
$data[Tree::IMAGE_FOLDER_CLOSED] = self::$leafImages['folderHome'];
$data[Tree::LABEL] = lang($folderName);
$data[Tree::TOOLTIP] = lang($folderName);
}
// User defined folders may get different icons
// plus they need to be translated too
elseif (($key = array_search($data['folderarray']['MAILBOX'], $definedFolders, true)) !== false)
{
$data[Tree::LABEL] = lang($key);
$data[Tree::TOOLTIP] = lang($key);
//User defined folders icons
$data[Tree::IMAGE_LEAF] =
$data[Tree::IMAGE_FOLDER_OPEN] =
$data [Tree::IMAGE_FOLDER_CLOSED] = "MailFolder".$key.".png";
}
elseif(stripos(array2string($data['folderarray']['attributes']),'\noselect')!== false)
{
$data[Tree::IMAGE_LEAF] = self::$leafImages['folderNoSelectClosed'];
$data[Tree::IMAGE_FOLDER_OPEN] = self::$leafImages['folderNoSelectOpen'];
$data[Tree::IMAGE_FOLDER_CLOSED] = self::$leafImages['folderNoSelectClosed'];
}
elseif ($data['parent'])
{
$data[Tree::LABEL] = $folderName;
$data[Tree::TOOLTIP] = $folderName;
$data[Tree::IMAGE_LEAF] = self::$leafImages['folderLeaf'];
$data[Tree::IMAGE_FOLDER_OPEN] = self::$leafImages['folderOpen'];
$data[Tree::IMAGE_FOLDER_CLOSED] = self::$leafImages['folderClosed'];
}
// Contains unseen mails for the folder
$unseen = $data['folderarray']['counter']['UNSEEN'];
// if there's unseen mails then change the label and style
// accordingly to indicate useen mails
if ($unseen > 0)
{
$data[Tree::LABEL] = $data[Tree::LABEL].'('.$unseen.')';
$data['style'] = 'font-weight: bold';
}
}
//Remove extra data from tree structure
unset($data['folderarray']);
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unset($data['path']);
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$insert['item'][] = $data;
}
/**
* Get accounts root node, fetches all or an accounts for a user
*
* @param type $_profileID = null Null means all accounts and giving profileid means fetches node for the account
* @param type $_noCheckbox = false option to switch checkbox of
* @param type $_openTopLevel = 0 option to either start the node opened (1) or closed (0)
*
* @return array an array of baseNodes of accounts
*/
static function getAccountsRootNode($_profileID = null, $_noCheckbox = false, $_openTopLevel = 0 )
{
$roots = array(Tree::ID => 0, Tree::CHILDREN => array());
foreach(Mail\Account::search(true, false) as $acc_id => $accObj)
{
if (!$accObj->is_imap()|| $_profileID && $acc_id != $_profileID) continue;
$identity = Mail\Account::identity_name($accObj,true,$GLOBALS['egw_info']['user']['acount_id']);
// Open top level folders for active account
$openActiveAccount = $GLOBALS['egw_info']['user']['preferences']['mail']['ActiveProfileID'] == $acc_id?1:0;
$baseNode = array(
Tree::ID=> (string)$acc_id,
Tree::LABEL => str_replace(array('<','>'),array('[',']'),$identity),
Tree::TOOLTIP => '('.$acc_id.') '.htmlspecialchars_decode($identity),
Tree::IMAGE_LEAF => self::$leafImages['folderAccount'],
Tree::IMAGE_FOLDER_OPEN => self::$leafImages['folderAccount'],
Tree::IMAGE_FOLDER_CLOSED => self::$leafImages['folderAccount'],
'path'=> array($acc_id),
Tree::CHILDREN => array(), // dynamic loading on unfold
Tree::AUTOLOAD_CHILDREN => true,
'parent' => '',
Tree::OPEN => $_openTopLevel?$_openTopLevel:$openActiveAccount,
// mark on account if Sieve is enabled
'data' => array(
'sieve' => $accObj->imapServer()->acc_sieve_enabled,
'spamfolder'=> $accObj->imapServer()->acc_folder_junk?true:false
),
Tree::NOCHECKBOX => $_noCheckbox
);
self::setOutStructure($baseNode, $roots,self::DELIMITER);
}
return $roots;
}
/**
* Initialization tree for index sidebox menu
*
* This function gets all accounts root nodes and then
* fill the active accounts with its children.
*
* @param string $_parent = null no parent node means root with the first level of folders
* @param string $_profileID = '' active profile / acc_id
* @param int|boolean $_openTopLevel = 1 Open top level folders on load if it's set to 1|true,
* false|0 leaves them in closed state
* @param boolean $_subscribedOnly = false get only subscribed folders
* @param boolean $_allInOneGo = false, true will get all folders (dependes on subscribedOnly option) of the account in one go
* @return type an array of tree
*/
function getInitialIndexTree ($_parent = null, $_profileID = '', $_openTopLevel = 1, $_subscribedOnly= false, $_allInOneGo = false)
{
$tree = $this->getTree($_parent, '', $_openTopLevel, false, $_subscribedOnly, $_allInOneGo);
$branches = $this->getTree($_profileID, $_profileID,1,false,$_subscribedOnly,$_allInOneGo);
foreach ($tree[Tree::CHILDREN] as &$account)
{
if ($account[Tree::ID] == $_profileID)
{
$account = $branches;
}
}
return $tree;
}
}