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<?php
/**
* The IMP_Spam:: class contains functions related to reporting spam
* messages in IMP.
*
* $Horde: imp/lib/Spam.php,v 1.3.4.18 2008/03/17 05:35:43 slusarz Exp $
*
* Copyright 2004-2008 The Horde Project (http://www.horde.org/)
*
* See the enclosed file COPYING for license information (GPL). If you
* did not receive this file, see http://www.fsf.org/copyleft/gpl.html.
*
* @author Michael Slusarz <slusarz@horde.org>
* @package IMP
*/
class IMP_Spam {
/**
* The IMP_Compose:: object used by the class.
*
* @var IMP_Compose
*/
var $_imp_compose;
/**
* The IMP_Identity:: object used by the class.
*
* @var IMP_Identity
*/
var $_identity;
/**
* Constructor.
*/
function IMP_Spam()
{
require_once 'Horde/Identity.php';
require_once IMP_BASE . '/lib/Compose.php';
$this->_imp_compose = &IMP_Compose::singleton();
$this->_identity = &Identity::singleton(array('imp', 'imp'));
}
/**
* Reports a list of messages as spam, based on the local configuration
* parameters.
*
* @param mixed &$indices See IMP::parseIndicesList().
* @param string $action Either 'spam' or 'notspam'.
*
* @return integer 1 if messages have been deleted, 2 if messages have
* been moved.
*/
function reportSpam(&$indices, $action)
{
global $notification;
/* Abort immediately if spam reporting has not been enabled. */
if (empty($GLOBALS['conf'][$action]['reporting'])) {
return;
}
/* Exit if there are no messages. */
if (!($msgList = IMP::parseIndicesList($indices))) {
return;
}
require_once IMP_BASE . '/lib/MIME/Contents.php';
$imp_imap = &IMP_IMAP::singleton();
/* We can report 'program' and 'bounce' messages as the same since
* they are both meant to indicate that the message has been reported
* to some program for analysis. */
$email_msg_count = $report_msg_count = 0;
foreach ($msgList as $folder => $msgIndices) {
/* Switch folders, if necessary (only valid for IMAP). */
$imp_imap->changeMbox($folder, IMP_IMAP_AUTO);
foreach ($msgIndices as $msgnum) {
/* Fetch the raw message contents (headers and complete
* body). */
$imp_contents = &IMP_Contents::singleton($msgnum . IMP_IDX_SEP . $folder);
if (is_a($imp_contents, 'PEAR_Error')) {
continue;
}
$to = null;
$report_flag = false;
$raw_msg = null;
/* If a (not)spam reporting program has been provided, use
* it. */
if (!empty($GLOBALS['conf'][$action]['program'])) {
$raw_msg = $imp_contents->fullMessageText();
/* Use a pipe to write the message contents. This should
* be secure. */
$prog = str_replace(array('%u','%l', '%d'),
array(escapeshellarg(Auth::getAuth()),
escapeshellarg(Auth::getBareAuth()),
escapeshellarg(Auth::getAuthDomain())),
$GLOBALS['conf'][$action]['program']);
$proc = proc_open($prog,
array(0 => array('pipe', 'r'),
1 => array('pipe', 'w'),
2 => array('pipe', 'w')),
$pipes);
if (!is_resource($proc)) {
Horde::logMessage('Cannot open process ' . $prog, __FILE__, __LINE__, PEAR_LOG_ERR);
return;
}
fwrite($pipes[0], $raw_msg);
fclose($pipes[0]);
$stderr = '';
while (!feof($pipes[2])) {
$stderr .= fgets($pipes[2]);
}
fclose($pipes[2]);
if (!empty($stderr)) {
Horde::logMessage('Error reporting spam: ' . $stderr, __FILE__, __LINE__, PEAR_LOG_ERR);
}
proc_close($proc);
$report_msg_count++;
$report_flag = true;
}
/* If a (not)spam reporting email address has been provided,
* use it. */
if (!empty($GLOBALS['conf'][$action]['email'])) {
if (!isset($raw_msg)) {
$raw_msg = $imp_contents->fullMessageText();
}
$this->_sendSpamReportMessage($action, $raw_msg);
$email_msg_count++;
}
/* If a (not)spam bounce email address has been provided, use
* it. */
if (!empty($GLOBALS['conf'][$action]['bounce'])) {
$to = $GLOBALS['conf'][$action]['bounce'];
} elseif (!empty($GLOBALS['conf']['hooks']['spam_bounce'])) {
/* Call the bounce email generation hook, if requested. */
$to = Horde::callHook('_imp_hook_spam_bounce',
array($action),
'imp');
}
if ($to) {
$imp_headers = &$imp_contents->getHeaderOb();
$from_addr = $this->_identity->getFromAddress();
$imp_headers->addResentHeaders($from_addr, $to);
/* We need to set the Return-Path header to the current
* user - see RFC 2821 [4.4]. */
$imp_headers->removeHeader('return-path');
$imp_headers->addHeader('Return-Path', $from_addr);
$bodytext = $imp_contents->getBody();
$this->_imp_compose->sendMessage($to, $imp_headers, $bodytext, NLS::getCharset());
if (!$report_flag) {
$report_msg_count++;
}
}
}
}
/* Report what we've done. */
if ($report_msg_count) {
switch ($action) {
case 'spam':
if ($report_msg_count > 1) {
$notification->push(sprintf(_("%d messages have been reported as spam."), $report_msg_count), 'horde.message');
} else {
$notification->push(_("The message has been reported as spam."), 'horde.message');
}
break;
case 'notspam':
if ($report_msg_count > 1) {
$notification->push(sprintf(_("%d messages have been reported as not spam."), $report_msg_count), 'horde.message');
} else {
$notification->push(_("The message has been reported as not spam."), 'horde.message');
}
break;
}
}
if ($email_msg_count) {
switch ($action) {
case 'spam':
if ($email_msg_count > 1) {
$notification->push(sprintf(_("%d messages have been reported as spam to your system administrator."), $email_msg_count), 'horde.message');
} else {
$notification->push(_("The message has been reported as spam to your system administrator."), 'horde.message');
}
break;
case 'notspam':
if ($email_msg_count > 1) {
$notification->push(sprintf(_("%d messages have been reported as not spam to your system administrator."), $email_msg_count), 'horde.message');
} else {
$notification->push(_("The message has been reported as not spam to your system administrator."), 'horde.message');
}
break;
}
}
/* Delete spam after report. */
$delete_spam = $GLOBALS['prefs']->getValue('delete_spam_after_report');
if ($delete_spam) {
require_once IMP_BASE . '/lib/Message.php';
$imp_message = &IMP_Message::singleton();
switch ($delete_spam) {
case 1:
if ($action == 'spam') {
$msg_count = $imp_message->delete($indices);
if ($msg_count === false) {
$delete_spam = 0;
} else {
if ($msg_count == 1) {
$notification->push(_("The message has been deleted."), 'horde.message');
} else {
$notification->push(sprintf(_("%d messages have been deleted."), $msg_count), 'horde.message');
}
}
}
break;
case 2:
$targetMbox = ($action == 'spam') ? IMP::folderPref($GLOBALS['prefs']->getValue('spam_folder'), true) : 'INBOX';
if ($targetMbox) {
if ($imp_message->copy($targetMbox, IMP_MESSAGE_MOVE, $indices, true) === false) {
$delete_spam = 0;
}
} else {
$notification->push(_("Could not move message to spam mailbox - no spam mailbox defined in preferences."), 'horde.error');
$delete_spam = 0;
}
break;
}
}
return $delete_spam;
}
/**
* Send a (not)spam message to the sysadmin.
*
* @access private
*
* @param string $action The action type.
* @param string $data The message data.
*/
function _sendSpamReportMessage($action, $data)
{
require_once 'Horde/MIME/Message.php';
/* Build the MIME structure. */
$mime = new MIME_Message();
$mime->setType('multipart/digest');
$mime->addPart(new MIME_Part('message/rfc822', $data));
$spam_headers = new IMP_Headers();
$spam_headers->addMessageIdHeader();
$spam_headers->addHeader('Date', date('r'));
$spam_headers->addHeader('To', $GLOBALS['conf'][$action]['email']);
$spam_headers->addHeader('From', $this->_identity->getFromLine());
$spam_headers->addHeader('Subject', _("$action Report from") . ' ' . $_SESSION['imp']['user']);
$spam_headers->addMIMEHeaders($mime);
/* Send the message. */
$this->_imp_compose->sendMessage($GLOBALS['conf'][$action]['email'], $spam_headers, $mime, NLS::getCharset());
}
}
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