_("Message Filters"),
'url' => SM_PATH . 'plugins/filters/options.php',
'desc' => _("Filtering enables messages with different criteria to be automatically filtered into different folders for easier organization."),
'js' => false
);
if ($AllowSpamFilters) {
$optpage_blocks[] = array(
'name' => _("SPAM Filters"),
'url' => SM_PATH . 'plugins/filters/spamoptions.php',
'desc' => _("SPAM filters allow you to select from various DNS based blacklists to detect junk email in your INBOX and move it to another folder (like Trash)."),
'js' => false
);
}
}
/* Receive the status of the folder and do something with it */
function filters_folder_status($statusarr) {
global $filter_inbox_count;
if (empty($filter_inbox_count)) $filter_inbox_count=0;
if ($statusarr['MAILBOX'] == 'INBOX')
{
if (!empty($statusarr['MESSAGES'])) $filter_inbox_count=$statusarr['MESSAGES'];
}
}
/**
* Saves the DNS Cache to disk
* @access private
*/
function filters_SaveCache () {
global $data_dir, $SpamFilters_DNScache;
if (file_exists($data_dir . '/dnscache')) {
$fp = fopen($data_dir . '/dnscache', 'r');
} else {
$fp = false;
}
if ($fp) {
flock($fp,LOCK_EX);
} else {
$fp = fopen($data_dir . '/dnscache', 'w+');
fclose($fp);
$fp = fopen($data_dir . '/dnscache', 'r');
flock($fp,LOCK_EX);
}
$fp1 = fopen($data_dir . '/dnscache', 'w+');
foreach ($SpamFilters_DNScache as $Key=> $Value) {
$tstr = $Key . ',' . $Value['L'] . ',' . $Value['T'] . "\n";
fputs ($fp1, $tstr);
}
fclose($fp1);
flock($fp,LOCK_UN);
fclose($fp);
}
/**
* Loads the DNS Cache from disk
* @access private
*/
function filters_LoadCache () {
global $data_dir, $SpamFilters_DNScache;
if (file_exists($data_dir . '/dnscache')) {
$SpamFilters_DNScache = array();
if ($fp = fopen ($data_dir . '/dnscache', 'r')) {
flock($fp,LOCK_SH);
while ($data = fgetcsv($fp,1024)) {
if ($data[2] > time()) {
$SpamFilters_DNScache[$data[0]]['L'] = $data[1];
$SpamFilters_DNScache[$data[0]]['T'] = $data[2];
}
}
flock($fp,LOCK_UN);
}
}
}
/**
* Uses the BulkQuery executable to query all the RBLs at once
* @param array $filters Array of SPAM Filters
* @param array $IPs Array of IP Addresses
* @access private
*/
function filters_bulkquery($filters, $IPs) {
global $attachment_dir, $username,
$SpamFilters_DNScache, $SpamFilters_BulkQuery,
$SpamFilters_CacheTTL;
if (count($IPs) > 0) {
$rbls = array();
foreach ($filters as $key => $value) {
if ($filters[$key]['enabled']) {
if ($filters[$key]['dns']) {
$rbls[$filters[$key]['dns']] = true;
}
}
}
$bqfil = $attachment_dir . $username . '-bq.in';
$fp = fopen($bqfil, 'w');
fputs ($fp, $SpamFilters_CacheTTL . "\n");
foreach ($rbls as $key => $value) {
fputs ($fp, '.' . $key . "\n");
}
fputs ($fp, "----------\n");
foreach ($IPs as $key => $value) {
fputs ($fp, $key . "\n");
}
fclose ($fp);
$bqout = array();
exec ($SpamFilters_BulkQuery . ' < ' . $bqfil, $bqout);
foreach ($bqout as $value) {
$Chunks = explode(',', $value);
$SpamFilters_DNScache[$Chunks[0]]['L'] = $Chunks[1];
$SpamFilters_DNScache[$Chunks[0]]['T'] = $Chunks[2] + time();
}
unlink($bqfil);
}
}
/**
* Starts the filtering process
* @param array $hook_args (since 1.5.2) do hook arguments. Is used to check
* hook name, array key = 0.
* @access private
*/
function start_filters($hook_args) {
global $imapServerAddress, $imapPort, $imap_stream_options, $imap_stream,
$imapConnection, $UseSeparateImapConnection, $AllowSpamFilters,
$filter_inbox_count, $username;
// if there were filtering errors previously during
// this login session, we won't try again
//
// (errors that this plugin was able to catch or a "NO"
// response/failure from IMAP found in the current session,
// which could have resulted from an attempted filter copy
// (over quota), in which case execution halts before this
// plugin can catch the problem -- note, however, that any
// other IMAP "NO" failure (caused by unrelated actions) at
// any time during the current session will cause this plugin
// to effectively shut down)
//
sqgetGlobalVar('filters_error', $filters_error, SQ_SESSION, FALSE);
sqgetGlobalVar('IMAP_FATAL_ERROR_TYPE', $imap_fatal_error, SQ_SESSION, '');
if ($filters_error || $imap_fatal_error == 'NO')
return;
/**
* check hook that calls filtering. If filters are called by right_main_after_header,
* do filtering only when we are in INBOX folder.
*/
if ($hook_args[0]=='right_main_after_header' &&
(sqgetGlobalVar('mailbox',$mailbox,SQ_FORM) && $mailbox!='INBOX')) {
return;
}
$filters = load_filters();
// No point running spam filters if there aren't any to run //
if ($AllowSpamFilters) {
$spamfilters = load_spam_filters();
$AllowSpamFilters = false;
foreach($spamfilters as $value) {
if ($value['enabled'] == SMPREF_ON) {
$AllowSpamFilters = true;
break;
}
}
}
// No user filters, and no spam filters, no need to continue //
if (!$AllowSpamFilters && empty($filters)) {
return;
}
// Detect if we have already connected to IMAP or not.
// Also check if we are forced to use a separate IMAP connection
if ((!isset($imap_stream) && !isset($imapConnection)) ||
$UseSeparateImapConnection ) {
$stream = sqimap_login($username, false, $imapServerAddress,
$imapPort, 10, $imap_stream_options);
$previously_connected = false;
} else if (isset($imapConnection)) {
$stream = $imapConnection;
$previously_connected = true;
} else {
$previously_connected = true;
$stream = $imap_stream;
}
if (!isset($filter_inbox_count)) {
$aStatus = sqimap_status_messages ($stream, 'INBOX', array('MESSAGES'));
if (!empty($aStatus['MESSAGES'])) {
$filter_inbox_count=$aStatus['MESSAGES'];
} else {
$filter_inbox_count=0;
}
}
if ($filter_inbox_count > 0) {
sqimap_mailbox_select($stream, 'INBOX');
// Filter spam from inbox before we sort them into folders
if ($AllowSpamFilters) {
spam_filters($stream);
}
// Sort into folders
user_filters($stream);
}
if (!$previously_connected) {
sqimap_logout($stream);
}
}
/**
* Does the loop through each filter
* @param stream imap_stream the stream to read from
* @access private
*/
function user_filters($imap_stream) {
global $data_dir, $username;
$filters = load_filters();
if (! $filters) return;
$filters_user_scan = getPref($data_dir, $username, 'filters_user_scan');
$expunge = false;
// For every rule
for ($i=0, $num = count($filters); $i < $num; $i++) {
// If it is the "combo" rule
if ($filters[$i]['where'] == 'To or Cc') {
/*
* If it's "TO OR CC", we have to do two searches, one for TO
* and the other for CC.
*/
$expunge = filter_search_and_delete($imap_stream, 'TO',
$filters[$i]['what'], $filters[$i]['folder'], $filters_user_scan, $expunge);
$expunge = filter_search_and_delete($imap_stream, 'CC',
$filters[$i]['what'], $filters[$i]['folder'], $filters_user_scan, $expunge);
} else if ($filters[$i]['where'] == 'Header and Body') {
$expunge = filter_search_and_delete($imap_stream, 'TEXT',
$filters[$i]['what'], $filters[$i]['folder'], $filters_user_scan, $expunge);
} else if ($filters[$i]['where'] == 'Message Body') {
$expunge = filter_search_and_delete($imap_stream, 'BODY',
$filters[$i]['what'], $filters[$i]['folder'], $filters_user_scan, $expunge);
} else {
/*
* If it's a normal TO, CC, SUBJECT, or FROM, then handle it
* normally.
*/
$expunge = filter_search_and_delete($imap_stream, $filters[$i]['where'],
$filters[$i]['what'], $filters[$i]['folder'], $filters_user_scan, $expunge);
}
}
// Clean out the mailbox whether or not auto_expunge is on
// That way it looks like it was redirected properly
if ($expunge) {
sqimap_mailbox_expunge($imap_stream, 'INBOX');
}
}
/**
* Creates and runs the IMAP command to filter messages
* @param string $imap_stream TODO: Document this parameter
* @param string $where Which part of the message to search (TO, CC, SUBJECT, etc...)
* @param string $what String to search for
* @param string $where_to Folder it will move to
* @param string $user_scan Whether to search all or just unseen
* @param string $should_expunge
* @access private
*/
function filter_search_and_delete($imap_stream, $where, $what, $where_to, $user_scan,
$should_expunge) {
global $languages, $squirrelmail_language, $allow_charset_search, $imap_server_type;
//TODO: make use of new mailbox cache. See mailbox_display.phpinfo
if (strtolower($where_to) == 'inbox') {
return array();
}
if ($user_scan == 'new') {
$category = 'UNSEEN';
} else {
$category = 'ALL';
}
$category .= ' UNDELETED';
if ($allow_charset_search &&
isset($languages[$squirrelmail_language]['CHARSET']) &&
$languages[$squirrelmail_language]['CHARSET']) {
$search_str = 'SEARCH CHARSET '
. strtoupper($languages[$squirrelmail_language]['CHARSET'])
. ' ' . $category;
} else {
$search_str = 'SEARCH CHARSET US-ASCII ' . $category;
}
if ($where == 'Header') {
$what = explode(':', $what);
$where = strtoupper($where);
$where = trim($where . ' ' . $what[0]);
$what = addslashes(trim($what[1]));
}
// see comments in squirrelmail sqimap_search function
if ($imap_server_type == 'macosx' || $imap_server_type == 'hmailserver') {
$search_str .= ' ' . $where . ' ' . $what;
/* read data back from IMAP */
$read = sqimap_run_command($imap_stream, $search_str, true, $response, $message, TRUE);
} else {
$search_str .= ' ' . $where . ' {' . strlen($what) . "}";
$sid = sqimap_session_id(true);
fputs ($imap_stream, $sid . ' ' . $search_str . "\r\n");
$read2 = sqimap_fgets($imap_stream);
# server should respond with Ready for argument, then we will send search text
#echo "RR2 $read2
";
fputs ($imap_stream, "$what\r\n");
#echo "SS $what
";
$read2 = sqimap_fgets($imap_stream);
#echo "RR2 $read2
";
$read[]=$read2;
$read3 = sqimap_fgets($imap_stream);
#echo "RR3 $read3
";
list($rtag,$response,$message)=explode(' ',$read3,3);
## $read2 = sqimap_retrieve_imap_response($imap_stream, $sid, true,
## $response, $message, $search_str, false, true, false);
#echo "RR2 $read2 / RESPONSE $response
";
}
if (isset($read[0])) {
$ids = array();
for ($i = 0, $iCnt = count($read); $i < $iCnt; ++$i) {
if (preg_match("/^\* SEARCH (.+)$/", $read[$i], $regs)) {
$ids += explode(' ', trim($regs[1]));
}
}
if ($response == 'OK' && count($ids)) {
if (sqimap_mailbox_exists($imap_stream, $where_to)) {
if (!sqimap_msgs_list_move ($imap_stream, $ids, $where_to, false)) {
// if errors occurred, don't try to filter again during this session
sqsession_register(TRUE, 'filters_error');
global $color;
error_box(_("A problem occurred filtering messages. Check filter settings and account quota if applicable. Filtering is disabled for the remainder of this login session."), $color);
}
// expunge even in the case of errors, in case some
// messages were filtered before the error happened
$should_expunge = true;
}
} elseif ($response != 'OK') {
$query = $search_str . "\r\n".$what ."\r\n";
if ($response == 'NO') {
if (strpos($message,'BADCHARSET') !== false ||
strpos($message,'character') !== false) {
sqm_trigger_imap_error('SQM_IMAP_BADCHARSET',$query, $response, $message);
} else {
sqm_trigger_imap_error('SQM_IMAP_ERROR',$query, $response, $message);
}
} else {
sqm_trigger_imap_error('SQM_IMAP_ERROR',$query, $response, $message);
}
}
}
return $should_expunge;
}
/**
* Loops through all the Received Headers to find IP Addresses
* @param stream imap_stream the stream to read from
* @access private
*/
function spam_filters($imap_stream) {
global $data_dir, $username;
global $SpamFilters_YourHop;
global $SpamFilters_DNScache;
global $SpamFilters_SharedCache;
global $SpamFilters_BulkQuery;
global $SpamFilters_CacheTTL;
$filters_spam_scan = getPref($data_dir, $username, 'filters_spam_scan');
$filters_spam_folder = getPref($data_dir, $username, 'filters_spam_folder');
$filters = load_spam_filters();
if ($SpamFilters_SharedCache) {
filters_LoadCache();
}
$run = false;
foreach ($filters as $Value) {
if ($Value['enabled']) {
$run = true;
break;
}
}
// short-circuit
if (!$run) {
return;
}
// Ask for a big list of all "Received" headers in the inbox with
// flags for each message. Kinda big.
if ($filters_spam_scan == 'new') {
$search_array = array();
$read = sqimap_run_command($imap_stream, 'SEARCH UNSEEN', true, $response, $message, TRUE);
if (isset($read[0])) {
for ($i = 0, $iCnt = count($read); $i < $iCnt; ++$i) {
if (preg_match("/^\* SEARCH (.+)$/", $read[$i], $regs)) {
$search_array = explode(' ', trim($regs[1]));
break;
}
}
}
}
if ($filters_spam_scan == 'new' && count($search_array)) {
$headers = sqimap_get_small_header_list ($imap_stream, $search_array, array('Received'),array());
} else if ($filters_spam_scan != 'new') {
$headers = sqimap_get_small_header_list ($imap_stream, null , array('Received'),array());
} else {
return;
}
if (!count($headers)) {
return;
}
$bulkquery = (strlen($SpamFilters_BulkQuery) > 0 ? true : false);
$IPs = array();
$aSpamIds = array();
foreach ($headers as $id => $aValue) {
if (isset($aValue['UID'])) {
$MsgNum = $aValue['UID'];
} else {
$MsgNum = $id;
}
// Look through all of the Received headers for IP addresses
if (isset($aValue['RECEIVED'])) {
foreach ($aValue['RECEIVED'] as $received) {
// Check to see if this line is the right "Received from" line
// to check
// $aValue['Received'] is an array with all the received lines.
// We should check them from bottom to top and only check the first 2.
// Currently we check only the header where $SpamFilters_YourHop in occures
if (is_int(strpos($received, $SpamFilters_YourHop))) {
if (preg_match('/([0-9]{1,3})\.([0-9]{1,3})\.([0-9]{1,3})\.([0-9]{1,3})/',$received,$aMatch)) {
$isspam = false;
if (filters_spam_check_site($aMatch[1],$aMatch[2],$aMatch[3],$aMatch[4],$filters)) {
$aSpamIds[] = $MsgNum;
$isspam = true;
}
if ($bulkquery) {
array_shift($aMatch);
$IP = explode('.', $aMatch);
foreach ($filters as $key => $value) {
if ($filters[$key]['enabled'] && $filters[$key]['dns']) {
if (strlen($SpamFilters_DNScache[$IP.'.'.$filters[$key]['dns']]) == 0) {
$IPs[$IP] = true;
break;
}
}
}
}
// If we've checked one IP and YourHop is
// just a space
if ($SpamFilters_YourHop == ' ' || $isspam) {
break; // don't check any more
}
}
}
}
}
}
// Lookie! It's spam! Yum!
if (count($aSpamIds) && sqimap_mailbox_exists($imap_stream, $filters_spam_folder)) {
if (!sqimap_msgs_list_move($imap_stream, $aSpamIds, $filters_spam_folder)) {
// if errors occurred, don't try to filter again during this session
sqsession_register(TRUE, 'filters_error');
global $color;
error_box(_("A problem occurred filtering messages. Check filter settings and account quota if applicable. Filtering is disabled for the remainder of this login session."), $color);
}
// expunge even in the case of errors, in case some
// messages were filtered before the error happened
sqimap_mailbox_expunge($imap_stream, 'INBOX');
}
if ($bulkquery && count($IPs)) {
filters_bulkquery($filters, $IPs);
}
if ($SpamFilters_SharedCache) {
filters_SaveCache();
} else {
sqsession_register($SpamFilters_DNScache, 'SpamFilters_DNScache');
}
}
/**
* Does the loop through each enabled filter for the specified IP address.
* IP format: $a.$b.$c.$d
* @param int $a First subset of IP
* @param int $b Second subset of IP
* @param int $c Third subset of IP
* @param int $d Forth subset of IP
* @param array $filters The Spam Filters
* @return boolean Whether the IP is Spam
* @access private
*/
function filters_spam_check_site($a, $b, $c, $d, &$filters) {
global $SpamFilters_DNScache, $SpamFilters_CacheTTL;
foreach ($filters as $key => $value) {
if ($filters[$key]['enabled']) {
if ($filters[$key]['dns']) {
/**
* RFC allows . on end of hostname to force domain lookup to
* not use search domain from resolv.conf, i.e. to ensure
* search domain isn't used if no hostname is found
*/
$filter_revip = $d . '.' . $c . '.' . $b . '.' . $a . '.' .
$filters[$key]['dns'] . '.';
if(!isset($SpamFilters_DNScache[$filter_revip]['L']))
$SpamFilters_DNScache[$filter_revip]['L'] = '';
if(!isset($SpamFilters_DNScache[$filter_revip]['T']))
$SpamFilters_DNScache[$filter_revip]['T'] = '';
if (strlen($SpamFilters_DNScache[$filter_revip]['L']) == 0) {
$SpamFilters_DNScache[$filter_revip]['L'] =
gethostbyname($filter_revip);
$SpamFilters_DNScache[$filter_revip]['T'] =
time() + $SpamFilters_CacheTTL;
}
/**
* gethostbyname returns ip if resolved, or returns original
* host supplied to function if there is no resolution
*/
if ($SpamFilters_DNScache[$filter_revip]['L'] != $filter_revip) {
return 1;
}
}
}
}
return 0;
}
/**
* Loads the filters from the user preferences
* @return array All the user filters
* @access private
*/
function load_filters() {
global $data_dir, $username;
$filters = array();
for ($i = 0; $fltr = getPref($data_dir, $username, 'filter' . $i); $i++) {
$ary = explode(',', $fltr);
$filters[$i]['where'] = $ary[0];
$filters[$i]['what'] = str_replace('###COMMA###', ',', $ary[1]);
$filters[$i]['folder'] = $ary[2];
}
return $filters;
}
/**
* Loads the Spam Filters and checks the preferences for the enabled status
* @return array All the spam filters
* @access private
*/
function load_spam_filters() {
global $data_dir, $username, $SpamFilters_ShowCommercial;
if ($SpamFilters_ShowCommercial) {
$filters['MAPS RBL']['prefname'] = 'filters_spam_maps_rbl';
$filters['MAPS RBL']['name'] = 'MAPS Realtime Blackhole List';
$filters['MAPS RBL']['link'] = 'http://www.mail-abuse.org/rbl/';
$filters['MAPS RBL']['dns'] = 'blackholes.mail-abuse.org';
$filters['MAPS RBL']['result'] = '127.0.0.2';
$filters['MAPS RBL']['comment'] =
_("COMMERCIAL - This list contains servers that are verified spam senders. It is a pretty reliable list to scan spam from.");
$filters['MAPS RSS']['prefname'] = 'filters_spam_maps_rss';
$filters['MAPS RSS']['name'] = 'MAPS Relay Spam Stopper';
$filters['MAPS RSS']['link'] = 'http://www.mail-abuse.org/rss/';
$filters['MAPS RSS']['dns'] = 'relays.mail-abuse.org';
$filters['MAPS RSS']['result'] = '127.0.0.2';
$filters['MAPS RSS']['comment'] =
_("COMMERCIAL - Servers that are configured (or misconfigured) to allow spam to be relayed through their system will be banned with this. Another good one to use.");
$filters['MAPS DUL']['prefname'] = 'filters_spam_maps_dul';
$filters['MAPS DUL']['name'] = 'MAPS Dial-Up List';
$filters['MAPS DUL']['link'] = 'http://www.mail-abuse.org/dul/';
$filters['MAPS DUL']['dns'] = 'dialups.mail-abuse.org';
$filters['MAPS DUL']['result'] = '127.0.0.3';
$filters['MAPS DUL']['comment'] =
_("COMMERCIAL - Dial-up users are often filtered out since they should use their ISP's mail servers to send mail. Spammers typically get a dial-up account and send spam directly from there.");
$filters['MAPS RBLplus-RBL']['prefname'] = 'filters_spam_maps_rblplus_rbl';
$filters['MAPS RBLplus-RBL']['name'] = 'MAPS RBL+ RBL List';
$filters['MAPS RBLplus-RBL']['link'] = 'http://www.mail-abuse.org/';
$filters['MAPS RBLplus-RBL']['dns'] = 'rbl-plus.mail-abuse.org';
$filters['MAPS RBLplus-RBL']['result'] = '127.0.0.2';
$filters['MAPS RBLplus-RBL']['comment'] =
_("COMMERCIAL - RBL+ Blackhole entries.");
$filters['MAPS RBLplus-RSS']['prefname'] = 'filters_spam_maps_rblplus_rss';
$filters['MAPS RBLplus-RSS']['name'] = 'MAPS RBL+ List RSS entries';
$filters['MAPS RBLplus-RSS']['link'] = 'http://www.mail-abuse.org/';
$filters['MAPS RBLplus-RSS']['dns'] = 'rbl-plus.mail-abuse.org';
$filters['MAPS RBLplus-RSS']['result'] = '127.0.0.2';
$filters['MAPS RBLplus-RSS']['comment'] =
_("COMMERCIAL - RBL+ OpenRelay entries.");
$filters['MAPS RBLplus-DUL']['prefname'] = 'filters_spam_maps_rblplus_dul';
$filters['MAPS RBLplus-DUL']['name'] = 'MAPS RBL+ List DUL entries';
$filters['MAPS RBLplus-DUL']['link'] = 'http://www.mail-abuse.org/';
$filters['MAPS RBLplus-DUL']['dns'] = 'rbl-plus.mail-abuse.org';
$filters['MAPS RBLplus-DUL']['result'] = '127.0.0.3';
$filters['MAPS RBLplus-DUL']['comment'] =
_("COMMERCIAL - RBL+ Dial-up entries.");
}
$filters['FiveTen Direct']['prefname'] = 'filters_spam_fiveten_src';
$filters['FiveTen Direct']['name'] = 'Five-Ten-sg.com Direct SPAM Sources';
$filters['FiveTen Direct']['link'] = 'http://www.five-ten-sg.com/blackhole.php';
$filters['FiveTen Direct']['dns'] = 'blackholes.five-ten-sg.com';
$filters['FiveTen Direct']['result'] = '127.0.0.2';
$filters['FiveTen Direct']['comment'] =
_("FREE - Five-Ten-sg.com - Direct SPAM sources.");
$filters['FiveTen DUL']['prefname'] = 'filters_spam_fiveten_dul';
$filters['FiveTen DUL']['name'] = 'Five-Ten-sg.com DUL Lists';
$filters['FiveTen DUL']['link'] = 'http://www.five-ten-sg.com/blackhole.php';
$filters['FiveTen DUL']['dns'] = 'blackholes.five-ten-sg.com';
$filters['FiveTen DUL']['result'] = '127.0.0.3';
$filters['FiveTen DUL']['comment'] =
_("FREE - Five-Ten-sg.com - Dial-up lists - includes some DSL IPs.");
$filters['FiveTen Unc. OptIn']['prefname'] = 'filters_spam_fiveten_oi';
$filters['FiveTen Unc. OptIn']['name'] = 'Five-Ten-sg.com Unconfirmed OptIn Lists';
$filters['FiveTen Unc. OptIn']['link'] = 'http://www.five-ten-sg.com/blackhole.php';
$filters['FiveTen Unc. OptIn']['dns'] = 'blackholes.five-ten-sg.com';
$filters['FiveTen Unc. OptIn']['result'] = '127.0.0.4';
$filters['FiveTen Unc. OptIn']['comment'] =
_("FREE - Five-Ten-sg.com - Bulk mailers that do not use confirmed opt-in.");
$filters['FiveTen Others']['prefname'] = 'filters_spam_fiveten_oth';
$filters['FiveTen Others']['name'] = 'Five-Ten-sg.com Other Misc. Servers';
$filters['FiveTen Others']['link'] = 'http://www.five-ten-sg.com/blackhole.php';
$filters['FiveTen Others']['dns'] = 'blackholes.five-ten-sg.com';
$filters['FiveTen Others']['result'] = '127.0.0.5';
$filters['FiveTen Others']['comment'] =
_("FREE - Five-Ten-sg.com - Other misc. servers.");
$filters['FiveTen Single Stage']['prefname'] = 'filters_spam_fiveten_ss';
$filters['FiveTen Single Stage']['name'] = 'Five-Ten-sg.com Single Stage Servers';
$filters['FiveTen Single Stage']['link'] = 'http://www.five-ten-sg.com/blackhole.php';
$filters['FiveTen Single Stage']['dns'] = 'blackholes.five-ten-sg.com';
$filters['FiveTen Single Stage']['result'] = '127.0.0.6';
$filters['FiveTen Single Stage']['comment'] =
_("FREE - Five-Ten-sg.com - Single Stage servers.");
$filters['FiveTen SPAM Support']['prefname'] = 'filters_spam_fiveten_supp';
$filters['FiveTen SPAM Support']['name'] = 'Five-Ten-sg.com SPAM Support Servers';
$filters['FiveTen SPAM Support']['link'] = 'http://www.five-ten-sg.com/blackhole.php';
$filters['FiveTen SPAM Support']['dns'] = 'blackholes.five-ten-sg.com';
$filters['FiveTen SPAM Support']['result'] = '127.0.0.7';
$filters['FiveTen SPAM Support']['comment'] =
_("FREE - Five-Ten-sg.com - SPAM Support servers.");
$filters['FiveTen Web forms']['prefname'] = 'filters_spam_fiveten_wf';
$filters['FiveTen Web forms']['name'] = 'Five-Ten-sg.com Web Form IPs';
$filters['FiveTen Web forms']['link'] = 'http://www.five-ten-sg.com/blackhole.php';
$filters['FiveTen Web forms']['dns'] = 'blackholes.five-ten-sg.com';
$filters['FiveTen Web forms']['result'] = '127.0.0.8';
$filters['FiveTen Web forms']['comment'] =
_("FREE - Five-Ten-sg.com - Web Form IPs.");
$filters['Dorkslayers']['prefname'] = 'filters_spam_dorks';
$filters['Dorkslayers']['name'] = 'Dorkslayers Lists';
$filters['Dorkslayers']['link'] = 'http://www.dorkslayers.com';
$filters['Dorkslayers']['dns'] = 'orbs.dorkslayers.com';
$filters['Dorkslayers']['result'] = '127.0.0.2';
$filters['Dorkslayers']['comment'] =
_("FREE - Dorkslayers appears to include only really bad open relays outside the US to avoid being sued. Interestingly enough, their website recommends you NOT use their service.");
$filters['SPAMhaus']['prefname'] = 'filters_spam_spamhaus';
$filters['SPAMhaus']['name'] = 'SPAMhaus Lists';
$filters['SPAMhaus']['link'] = 'http://www.spamhaus.org';
$filters['SPAMhaus']['dns'] = 'sbl.spamhaus.org';
$filters['SPAMhaus']['result'] = '127.0.0.2';
$filters['SPAMhaus']['comment'] =
_("FREE - SPAMhaus - A list of well-known SPAM sources.");
$filters['SPAMcop']['prefname'] = 'filters_spam_spamcop';
$filters['SPAMcop']['name'] = 'SPAM Cop Lists';
$filters['SPAMcop']['link'] = 'http://spamcop.net/bl.shtml';
$filters['SPAMcop']['dns'] = 'bl.spamcop.net';
$filters['SPAMcop']['result'] = '127.0.0.2';
$filters['SPAMcop']['comment'] =
_("FREE, for now - SpamCop - An interesting solution that lists servers that have a very high spam to legit email ratio (85 percent or more).");
$filters['dev.null.dk']['prefname'] = 'filters_spam_devnull';
$filters['dev.null.dk']['name'] = 'dev.null.dk Lists';
$filters['dev.null.dk']['link'] = 'http://dev.null.dk/';
$filters['dev.null.dk']['dns'] = 'dev.null.dk';
$filters['dev.null.dk']['result'] = '127.0.0.2';
$filters['dev.null.dk']['comment'] =
_("FREE - dev.null.dk - I don't have any detailed info on this list.");
$filters['visi.com']['prefname'] = 'filters_spam_visi';
$filters['visi.com']['name'] = 'visi.com Relay Stop List';
$filters['visi.com']['link'] = 'http://relays.visi.com';
$filters['visi.com']['dns'] = 'relays.visi.com';
$filters['visi.com']['result'] = '127.0.0.2';
$filters['visi.com']['comment'] =
_("FREE - visi.com - Relay Stop List. Very conservative OpenRelay List.");
$filters['ahbl.org Open Relays']['prefname'] = 'filters_spam_2mb_or';
$filters['ahbl.org Open Relays']['name'] = 'ahbl.org Open Relays List';
$filters['ahbl.org Open Relays']['link'] = 'http://www.ahbl.org/';
$filters['ahbl.org Open Relays']['dns'] = 'dnsbl.ahbl.org';
$filters['ahbl.org Open Relays']['result'] = '127.0.0.2';
$filters['ahbl.org Open Relays']['comment'] =
_("FREE - ahbl.org Open Relays - Another list of Open Relays.");
$filters['ahbl.org SPAM Source']['prefname'] = 'filters_spam_2mb_ss';
$filters['ahbl.org SPAM Source']['name'] = 'ahbl.org SPAM Source List';
$filters['ahbl.org SPAM Source']['link'] = 'http://www.ahbl.org/';
$filters['ahbl.org SPAM Source']['dns'] = 'dnsbl.ahbl.org';
$filters['ahbl.org SPAM Source']['result'] = '127.0.0.4';
$filters['ahbl.org SPAM Source']['comment'] =
_("FREE - ahbl.org SPAM Source - List of Direct SPAM Sources.");
$filters['ahbl.org SPAM ISPs']['prefname'] = 'filters_spam_2mb_isp';
$filters['ahbl.org SPAM ISPs']['name'] = 'ahbl.org SPAM-friendly ISP List';
$filters['ahbl.org SPAM ISPs']['link'] = 'http://www.ahbl.org/';
$filters['ahbl.org SPAM ISPs']['dns'] = 'dnsbl.ahbl.org';
$filters['ahbl.org SPAM ISPs']['result'] = '127.0.0.7';
$filters['ahbl.org SPAM ISPs']['comment'] =
_("FREE - ahbl.org SPAM ISPs - List of SPAM-friendly ISPs.");
$filters['Leadmon DUL']['prefname'] = 'filters_spam_lm_dul';
$filters['Leadmon DUL']['name'] = 'Leadmon.net DUL List';
$filters['Leadmon DUL']['link'] = 'http://www.leadmon.net/spamguard/';
$filters['Leadmon DUL']['dns'] = 'spamguard.leadmon.net';
$filters['Leadmon DUL']['result'] = '127.0.0.2';
$filters['Leadmon DUL']['comment'] =
_("FREE - Leadmon DUL - Another list of Dial-up or otherwise dynamically assigned IPs.");
$filters['Leadmon SPAM Source']['prefname'] = 'filters_spam_lm_ss';
$filters['Leadmon SPAM Source']['name'] = 'Leadmon.net SPAM Source List';
$filters['Leadmon SPAM Source']['link'] = 'http://www.leadmon.net/spamguard/';
$filters['Leadmon SPAM Source']['dns'] = 'spamguard.leadmon.net';
$filters['Leadmon SPAM Source']['result'] = '127.0.0.3';
$filters['Leadmon SPAM Source']['comment'] =
_("FREE - Leadmon SPAM Source - List of IPs Leadmon.net has received SPAM directly from.");
$filters['Leadmon Bulk Mailers']['prefname'] = 'filters_spam_lm_bm';
$filters['Leadmon Bulk Mailers']['name'] = 'Leadmon.net Bulk Mailers List';
$filters['Leadmon Bulk Mailers']['link'] = 'http://www.leadmon.net/spamguard/';
$filters['Leadmon Bulk Mailers']['dns'] = 'spamguard.leadmon.net';
$filters['Leadmon Bulk Mailers']['result'] = '127.0.0.4';
$filters['Leadmon Bulk Mailers']['comment'] =
_("FREE - Leadmon Bulk Mailers - Bulk mailers that do not require confirmed opt-in or that have allowed known spammers to become clients and abuse their services.");
$filters['Leadmon Open Relays']['prefname'] = 'filters_spam_lm_or';
$filters['Leadmon Open Relays']['name'] = 'Leadmon.net Open Relays List';
$filters['Leadmon Open Relays']['link'] = 'http://www.leadmon.net/spamguard/';
$filters['Leadmon Open Relays']['dns'] = 'spamguard.leadmon.net';
$filters['Leadmon Open Relays']['result'] = '127.0.0.5';
$filters['Leadmon Open Relays']['comment'] =
_("FREE - Leadmon Open Relays - Single Stage Open Relays that are not listed on other active RBLs.");
$filters['Leadmon Multi-stage']['prefname'] = 'filters_spam_lm_ms';
$filters['Leadmon Multi-stage']['name'] = 'Leadmon.net Multi-Stage Relay List';
$filters['Leadmon Multi-stage']['link'] = 'http://www.leadmon.net/spamguard/';
$filters['Leadmon Multi-stage']['dns'] = 'spamguard.leadmon.net';
$filters['Leadmon Multi-stage']['result'] = '127.0.0.6';
$filters['Leadmon Multi-stage']['comment'] =
_("FREE - Leadmon Multi-stage - Multi-Stage Open Relays that are not listed on other active RBLs and that have sent SPAM to Leadmon.net.");
$filters['Leadmon SpamBlock']['prefname'] = 'filters_spam_lm_sb';
$filters['Leadmon SpamBlock']['name'] = 'Leadmon.net SpamBlock Sites List';
$filters['Leadmon SpamBlock']['link'] = 'http://www.leadmon.net/spamguard/';
$filters['Leadmon SpamBlock']['dns'] = 'spamguard.leadmon.net';
$filters['Leadmon SpamBlock']['result'] = '127.0.0.7';
$filters['Leadmon SpamBlock']['comment'] =
_("FREE - Leadmon SpamBlock - Sites on this listing have sent Leadmon.net direct SPAM from IPs in netblocks where the entire block has no DNS mappings. It's a list of BLOCKS of IPs being used by people who have SPAMmed Leadmon.net.");
$filters['NJABL Open Relays']['prefname'] = 'filters_spam_njabl_or';
$filters['NJABL Open Relays']['name'] = 'NJABL Open Relay/Direct Spam Source List';
$filters['NJABL Open Relays']['link'] = 'http://www.njabl.org/';
$filters['NJABL Open Relays']['dns'] = 'dnsbl.njabl.org';
$filters['NJABL Open Relays']['result'] = '127.0.0.2';
$filters['NJABL Open Relays']['comment'] =
_("FREE, for now - Not Just Another Blacklist - Both Open Relays and Direct SPAM Sources.");
$filters['NJABL DUL']['prefname'] = 'filters_spam_njabl_dul';
$filters['NJABL DUL']['name'] = 'NJABL Dial-ups List';
$filters['NJABL DUL']['link'] = 'http://www.njabl.org/';
$filters['NJABL DUL']['dns'] = 'dnsbl.njabl.org';
$filters['NJABL DUL']['result'] = '127.0.0.3';
$filters['NJABL DUL']['comment'] =
_("FREE, for now - Not Just Another Blacklist - Dial-up IPs.");
foreach ($filters as $Key => $Value) {
$filters[$Key]['enabled'] = (bool)getPref($data_dir, $username, $filters[$Key]['prefname']);
}
return $filters;
}
/**
* Removes a User filter
* @param int $id ID of the filter to remove
* @access private
*/
function remove_filter ($id) {
global $data_dir, $username;
while ($nextFilter = getPref($data_dir, $username, 'filter' . ($id + 1))) {
setPref($data_dir, $username, 'filter' . $id, $nextFilter);
$id ++;
}
removePref($data_dir, $username, 'filter' . $id);
}
/**
* Swaps two filters
* @param int $id1 ID of first filter to swap
* @param int $id2 ID of second filter to swap
* @access private
*/
function filter_swap($id1, $id2) {
global $data_dir, $username;
$FirstFilter = getPref($data_dir, $username, 'filter' . $id1);
$SecondFilter = getPref($data_dir, $username, 'filter' . $id2);
if ($FirstFilter && $SecondFilter) {
setPref($data_dir, $username, 'filter' . $id2, $FirstFilter);
setPref($data_dir, $username, 'filter' . $id1, $SecondFilter);
}
}
/**
* This updates the filter rules when renaming or deleting folders
* @param array $args
* @access private
*/
function update_for_folder ($args) {
$old_folder = $args[0];
$new_folder = $args[2];
$action = $args[1];
global $data_dir, $username;
$filters = array();
$filters = load_filters();
$filter_count = count($filters);
$p = 0;
for ($i = 0; $i < $filter_count; $i++) {
if (!empty($filters)) {
if ($old_folder == $filters[$i]['folder']) {
if ($action == 'rename') {
$filters[$i]['folder'] = $new_folder;
setPref($data_dir, $username, 'filter'.$i,
$filters[$i]['where'].','.$filters[$i]['what'].','.$new_folder);
}
elseif ($action == 'delete') {
remove_filter($p);
$p = $p-1;
}
}
$p++;
}
}
}
/**
* Display formated error message
* @param string $string text message
* @return string html formated text message
* @access private
*/
function do_error($string) {
global $color;
echo "";
echo $string;
echo "
\n";
}