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<?php
/**
* folder_manip.php
*
* Functions for IMAP folder manipulation:
* (un)subscribe, create, rename, delete.
*
* @author Thijs Kinkhorst <kink at squirrelmail.org>
* @copyright 1999-2015 The SquirrelMail Project Team
* @license http://opensource.org/licenses/gpl-license.php GNU Public License
* @version $Id$
* @package squirrelmail
* @see folders.php
*/
/**
* Helper function for the functions below; checks if the user entered
* folder name is valid according to the IMAP standard. If not, it
* bails out with an error and cleanly terminates the IMAP connection.
*/
function folders_checkname($imapConnection, $folder_name, $delimiter)
{
if (substr_count($folder_name, '"') || substr_count($folder_name, "\\") ||
substr_count($folder_name, $delimiter) || ($folder_name == '')) {
global $color, $oTemplate;
error_box(_("Illegal folder name.") . "<br />\n" .
sprintf(_("The name may not contain any of the following: %s"), '<tt>" \\ '.$delimiter.'</tt>')
. "<br />\n" .
_("Please select a different name.").
'<br /><a href="folders.php">'.
_("Click here to go back") . '</a>.');
sqimap_logout($imapConnection);
$oTemplate->display('footer.tpl');
exit;
}
}
/**
* Called from folders.php to create a new folder.
* @param stream $imapConnection imap connection resource
* @param string $delimiter delimiter
* @param string $folder_name new folder name
* @param string $subfolder folder that stores new folder
* @param string $contain_subs if not empty, creates folder that can store subfolders
* @since 1.5.1
*/
function folders_create ($imapConnection, $delimiter, $folder_name, $subfolder, $contain_subs)
{
folders_checkname($imapConnection, $folder_name, $delimiter);
global $folder_prefix;
$folder_name = imap_utf7_encode_local($folder_name);
if ( ! empty($contain_subs) ) {
$folder_type = 'noselect';
} else {
$folder_type = '';
}
if ($folder_prefix && (substr($folder_prefix, -1) != $delimiter)) {
$folder_prefix = $folder_prefix . $delimiter;
}
if ($folder_prefix && (substr($subfolder, 0, strlen($folder_prefix)) != $folder_prefix)) {
$subfolder_orig = $subfolder;
$subfolder = $folder_prefix . $subfolder;
} else {
$subfolder_orig = $subfolder;
}
if (trim($subfolder_orig) == '') {
sqimap_mailbox_create ($imapConnection, $folder_prefix.$folder_name, $folder_type);
} else {
sqimap_mailbox_create ($imapConnection, $subfolder.$delimiter.$folder_name, $folder_type);
}
return;
}
/**
* Called from folders.php, given a folder name, ask the user what this
* folder should be renamed to.
*/
function folders_rename_getname ($imapConnection, $delimiter, $old) {
global $color, $default_folder_prefix, $oTemplate;
if ( $old == '' ) {
plain_error_message(_("You have not selected a folder to rename. Please do so.").
'<br /><a href="../src/folders.php">'._("Click here to go back").'</a>.', $color);
sqimap_logout($imapConnection);
$oTemplate->display('footer.tpl');
exit;
}
if (substr($old, strlen($old) - strlen($delimiter)) == $delimiter) {
$isfolder = TRUE;
$old = substr($old, 0, strlen($old) - 1);
} else {
$isfolder = FALSE;
}
$old = imap_utf7_decode_local($old);
if (strpos($old, $delimiter)) {
$old_name = substr($old, strrpos($old, $delimiter)+1);
// hide default prefix (INBOX., mail/ or other)
$quoted_prefix=preg_quote($default_folder_prefix,'/');
$prefix_length=(preg_match("/^$quoted_prefix/",$old) ? strlen($default_folder_prefix) : 0);
if ($prefix_length>strrpos($old, $delimiter)) {
$old_parent = '';
} else {
$old_parent = substr($old, $prefix_length, (strrpos($old, $delimiter)-$prefix_length))
. ' ' . $delimiter;
}
} else {
$old_name = $old;
$old_parent = '';
}
sqimap_logout($imapConnection);
$oTemplate->assign('dialog_type', 'rename');
$oTemplate->assign('parent_folder', sm_encode_html_special_chars($old_parent));
$oTemplate->assign('current_full_name', sm_encode_html_special_chars($old));
$oTemplate->assign('current_folder_name', sm_encode_html_special_chars($old_name));
$oTemplate->assign('is_folder', $isfolder);
$oTemplate->display('folder_manip_dialog.tpl');
$oTemplate->display('footer.tpl');
exit;
}
/**
* Given an old and new folder name, renames the folder.
*/
function folders_rename_do($imapConnection, $delimiter, $orig, $old_name, $new_name)
{
folders_checkname($imapConnection, $new_name, $delimiter);
$orig = imap_utf7_encode_local($orig);
$old_name = imap_utf7_encode_local($old_name);
$new_name = imap_utf7_encode_local($new_name);
if ($old_name != $new_name) {
if (strpos($orig, $delimiter)) {
$old_dir = substr($orig, 0, strrpos($orig, $delimiter));
} else {
$old_dir = '';
}
if ($old_dir != '') {
$newone = $old_dir . $delimiter . $new_name;
} else {
$newone = $new_name;
}
// Renaming a folder doesn't rename the folder but leaves you unsubscribed
// at least on Cyrus IMAP servers.
if (isset($isfolder)) {
$newone = $newone.$delimiter;
$orig = $orig.$delimiter;
}
sqimap_mailbox_rename( $imapConnection, $orig, $newone );
}
return;
}
/**
* Presents a confirmation dialog to the user asking whether they're
* sure they want to delete this folder.
*/
function folders_delete_ask ($imapConnection, $folder_name)
{
global $color, $default_folder_prefix, $oTemplate;
if ($folder_name == '') {
plain_error_message(_("You have not selected a folder to delete. Please do so.").
'<br /><a href="../src/folders.php">'._("Click here to go back").'</a>.', $color);
sqimap_logout($imapConnection);
$oTemplate->display('footer.tpl');
exit;
}
// hide default folder prefix (INBOX., mail/ or other)
$visible_folder_name = imap_utf7_decode_local($folder_name);
$quoted_prefix = preg_quote($default_folder_prefix,'/');
$prefix_length = (preg_match("/^$quoted_prefix/",$visible_folder_name) ? strlen($default_folder_prefix) : 0);
$visible_folder_name = substr($visible_folder_name,$prefix_length);
sqimap_logout($imapConnection);
$oTemplate->assign('dialog_type', 'delete');
$oTemplate->assign('folder_name', sm_encode_html_special_chars($folder_name));
$oTemplate->assign('visible_folder_name', sm_encode_html_special_chars($visible_folder_name));
$oTemplate->display('folder_manip_dialog.tpl');
$oTemplate->display('footer.tpl');
exit;
}
/**
* Given a folder, moves it to trash (and all subfolders of it too).
*/
function folders_delete_do ($imapConnection, $delimiter, $folder_name)
{
include(SM_PATH . 'functions/tree.php');
$boxes = sqimap_mailbox_list ($imapConnection);
global $delete_folder, $imap_server_type, $trash_folder, $move_to_trash;
if (substr($folder_name, -1) == $delimiter) {
$folder_name_no_dm = substr($folder_name, 0, strlen($folder_name) - 1);
} else {
$folder_name_no_dm = $folder_name;
}
/** lets see if we CAN move folders to the trash.. otherwise,
** just delete them **/
if ($delete_folder || preg_match('/^' . preg_quote($trash_folder, '/') . '.+/i', $folder_name) ) {
$can_move_to_trash = FALSE;
} else {
/* Otherwise, check if trash folder exits and support sub-folders */
foreach($boxes as $box) {
if ($box['unformatted'] == $trash_folder) {
$can_move_to_trash = !in_array('noinferiors', $box['flags']);
}
}
}
/** First create the top node in the tree **/
foreach($boxes as $box) {
if (($box['unformatted-dm'] == $folder_name) && (strlen($box['unformatted-dm']) == strlen($folder_name))) {
$foldersTree[0]['value'] = $folder_name;
$foldersTree[0]['doIHaveChildren'] = false;
continue;
}
}
/* Now create the nodes for subfolders of the parent folder
You can tell that it is a subfolder by tacking the mailbox delimiter
on the end of the $folder_name string, and compare to that. */
foreach($boxes as $box) {
if (substr($box['unformatted'], 0, strlen($folder_name_no_dm . $delimiter)) == ($folder_name_no_dm . $delimiter)) {
addChildNodeToTree($box['unformatted'], $box['unformatted-dm'], $foldersTree);
}
}
/** Lets start removing the folders and messages **/
if (($move_to_trash == true) && ($can_move_to_trash == true)) { /** if they wish to move messages to the trash **/
walkTreeInPostOrderCreatingFoldersUnderTrash(0, $imapConnection, $foldersTree, $folder_name);
walkTreeInPreOrderDeleteFolders(0, $imapConnection, $foldersTree);
} else { /** if they do NOT wish to move messages to the trash (or cannot)**/
walkTreeInPreOrderDeleteFolders(0, $imapConnection, $foldersTree);
}
return;
}
/**
* Given an array of folder_names, subscribes to each of them.
*/
function folders_subscribe($imapConnection, $folder_names)
{
global $color, $oTemplate;
if (count($folder_names) == 0 || $folder_names[0] == '') {
plain_error_message(_("You have not selected a folder to subscribe. Please do so.").
'<br /><a href="../src/folders.php">'._("Click here to go back").'</a>.', $color);
sqimap_logout($imapConnection);
$oTemplate->display('footer.tpl');
exit;
}
global $no_list_for_subscribe, $imap_server_type;
if($no_list_for_subscribe && $imap_server_type == 'cyrus') {
/* Cyrus, atleast, does not typically allow subscription to
* nonexistent folders (this is an optional part of IMAP),
* lets catch it here and report back cleanly. */
if(!sqimap_mailbox_exists($imapConnection, $folder_names[0])) {
plain_error_message(_("Subscription Unsuccessful - Folder does not exist.").
'<br /><a href="../src/folders.php">'._("Click here to go back").'</a>.', $color);
sqimap_logout($imapConnection);
exit;
}
}
foreach ( $folder_names as $folder_name ) {
sqimap_subscribe ($imapConnection, $folder_name);
}
return;
}
/**
* Given a list of folder names, unsubscribes from each of them.
*/
function folders_unsubscribe($imapConnection, $folder_names)
{
global $color, $oTemplate;
if (count($folder_names) == 0 || $folder_names[0] == '') {
plain_error_message(_("You have not selected a folder to unsubscribe. Please do so.").
'<br /><a href="../src/folders.php">'._("Click here to go back").'</a>.', $color);
sqimap_logout($imapConnection);
$oTemplate->display('footer.tpl');
exit;
}
foreach ( $folder_names as $folder_name ) {
sqimap_unsubscribe ($imapConnection, $folder_name);
}
return;
}
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