1137 lines
41 KiB
PHP
Executable file
1137 lines
41 KiB
PHP
Executable file
<?php
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/**
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* imap_general.php
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*
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* Copyright (c) 1999-2003 The SquirrelMail Project Team
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* Licensed under the GNU GPL. For full terms see the file COPYING.
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*
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* This implements all functions that do general imap functions.
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*
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* $Id$
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* @package squirrelmail
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*/
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/** Includes.. */
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require_once(SM_PATH . 'functions/page_header.php');
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require_once(SM_PATH . 'functions/auth.php');
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global $sqimap_session_id;
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$sqimap_session_id = 1;
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/**
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* Generates a new session ID by incrementing the last one used;
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* this ensures that each command has a unique ID.
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* @param bool unique_id
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* @return string IMAP session id of the form 'A000'.
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*/
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function sqimap_session_id($unique_id = false) {
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global $data_dir, $username, $sqimap_session_id;
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if (!$unique_id) {
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return( sprintf("A%03d", $sqimap_session_id++) );
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} else {
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return( sprintf("A%03d", $sqimap_session_id++) . ' UID' );
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}
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}
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/**
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* Both send a command and accept the result from the command.
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* This is to allow proper session number handling.
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*/
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function sqimap_run_command_list ($imap_stream, $query, $handle_errors, &$response, &$message, $unique_id = false) {
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if ($imap_stream) {
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$sid = sqimap_session_id($unique_id);
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fputs ($imap_stream, $sid . ' ' . $query . "\r\n");
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$tag_uid_a = explode(' ',trim($sid));
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$tag = $tag_uid_a[0];
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$read = sqimap_retrieve_imap_response ($imap_stream, $tag, $handle_errors, $response, $message, $query );
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/* get the response and the message */
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$message = $message[$tag];
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$response = $response[$tag];
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return $read[$tag];
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} else {
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global $squirrelmail_language, $color;
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set_up_language($squirrelmail_language);
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require_once(SM_PATH . 'functions/display_messages.php');
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$string = "<b><font color=$color[2]>\n" .
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_("ERROR : No available imapstream.") .
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"</b></font>\n";
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error_box($string,$color);
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return false;
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}
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}
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function sqimap_run_command ($imap_stream, $query, $handle_errors, &$response,
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&$message, $unique_id = false,$filter=false,
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$outputstream=false,$no_return=false) {
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if ($imap_stream) {
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$sid = sqimap_session_id($unique_id);
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fputs ($imap_stream, $sid . ' ' . $query . "\r\n");
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$tag_uid_a = explode(' ',trim($sid));
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$tag = $tag_uid_a[0];
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$read = sqimap_read_data ($imap_stream, $tag, $handle_errors, $response,
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$message, $query,$filter,$outputstream,$no_return);
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if (empty($read)) { //Imap server dropped its connection
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$response = '';
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$message = '';
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return false;
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}
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/* retrieve the response and the message */
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$response = $response[$tag];
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$message = $message[$tag];
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if (!empty($read[$tag])) {
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return $read[$tag][0];
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} else {
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return $read[$tag];
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}
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} else {
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global $squirrelmail_language, $color;
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set_up_language($squirrelmail_language);
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require_once(SM_PATH . 'functions/display_messages.php');
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$string = "<b><font color=$color[2]>\n" .
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_("ERROR : No available imapstream.") .
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"</b></font>\n";
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error_box($string,$color);
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return false;
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}
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}
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function sqimap_prepare_pipelined_query($new_query,&$tag,&$aQuery,$unique_id) {
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$sid = sqimap_session_id($unique_id);
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$tag_uid_a = explode(' ',trim($sid));
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$tag = $tag_uid_a[0];
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$query = $sid . ' '.$new_query."\r\n";
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$aQuery[$tag] = $query;
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}
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function sqimap_run_pipelined_command ($imap_stream, $aQueryList, $handle_errors,
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&$aServerResponse, &$aServerMessage, $unique_id = false,
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$filter=false,$outputstream=false,$no_return=false) {
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$aResponse = false;
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/*
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Do not fire all calls at once to the imap-server but split the calls up
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in portions of $iChunkSize. If we do not do that I think we misbehave as
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IMAP client or should handle BYE calls if the IMAP-server drops the
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connection because the number of queries is to large. This isn't tested
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but a wild guess how it could work in the field.
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After testing it on Exchange 2000 we discovered that a chunksize of 32
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was quicker then when we raised it to 128.
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*/
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$iQueryCount = count($aQueryList);
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$iChunkSize = 32;
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// array_chunk would also do the job but it's supported from php > 4.2
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$aQueryChunks = array();
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$iLoops = floor($iQueryCount / $iChunkSize);
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if ($iLoops * $iChunkSize != $iQueryCount) ++$iLoops;
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if (!function_exists('array_chunk')) { // arraychunk replacement
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reset($aQueryList);
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for($i=0;$i<$iLoops;++$i) {
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for($j=0;$j<$iChunkSize;++$j) {
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$key = key($aQueryList);
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$aTmp[$key] = $aQueryList[$key];
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if (next($aQueryList) === false) break;
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}
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$aQueryChunks[] = $aTmp;
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}
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} else {
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$aQueryChunks = array_chunk($aQueryList,$iChunkSize,true);
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}
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for ($i=0;$i<$iLoops;++$i) {
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$aQuery = $aQueryChunks[$i];
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foreach($aQuery as $tag => $query) {
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fputs($imap_stream,$query);
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$aResults[$tag] = false;
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}
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foreach($aQuery as $tag => $query) {
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if ($aResults[$tag] == false) {
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$aReturnedResponse = sqimap_retrieve_imap_response ($imap_stream, $tag,
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$handle_errors, $response, $message, $query,
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$filter,$outputstream,$no_return);
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foreach ($aReturnedResponse as $returned_tag => $aResponse) {
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if (!empty($aResponse)) {
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$aResults[$returned_tag] = $aResponse[0];
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} else {
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$aResults[$returned_tag] = $aResponse;
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}
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$aServerResponse[$returned_tag] = $response[$returned_tag];
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$aServerMessage[$returned_tag] = $message[$returned_tag];
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}
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}
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}
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}
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return $aResults;
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}
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/**
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* Custom fgets function: gets a line from the IMAP-server,
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* no matter how big it may be.
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* @param stream imap_stream the stream to read from
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* @return string a line
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*/
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function sqimap_fgets($imap_stream) {
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$read = '';
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$buffer = 4096;
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$results = '';
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$offset = 0;
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while (strpos($results, "\r\n", $offset) === false) {
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if (!($read = fgets($imap_stream, $buffer))) {
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/* this happens in case of an error */
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/* reset $results because it's useless */
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$results = false;
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break;
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}
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if ( $results != '' ) {
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$offset = strlen($results) - 1;
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}
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$results .= $read;
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}
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return $results;
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}
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function sqimap_fread($imap_stream,$iSize,$filter=false,
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$outputstream=false, $no_return=false) {
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if (!$filter || !$outputstream) {
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$iBufferSize = $iSize;
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} else {
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// see php bug 24033. They changed fread behaviour %$^&$%
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$iBufferSize = 7800; // multiple of 78 in case of base64 decoding.
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}
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if ($iSize < $iBufferSize) {
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$iBufferSize = $iSize;
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}
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$iRetrieved = 0;
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$results = '';
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$sRead = $sReadRem = '';
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// NB: fread can also stop at end of a packet on sockets.
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while ($iRetrieved < $iSize) {
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$sRead = fread($imap_stream,$iBufferSize);
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$iLength = strlen($sRead);
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$iRetrieved += $iLength ;
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$iRemaining = $iSize - $iRetrieved;
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if ($iRemaining < $iBufferSize) {
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$iBufferSize = $iRemaining;
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}
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if (!$sRead) {
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$results = false;
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break;
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}
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if ($sReadRem) {
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$sRead = $sReadRem . $sRead;
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$sReadRem = '';
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}
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if (substr($sRead,-1) !== "\n") {
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$i = strrpos($sRead,"\n");
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if ($i !== false && $iRetrieved<$iSize) {
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++$i;
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$sReadRem = substr($sRead,$i);
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$sRead = substr($sRead,0,$i);
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} else if ($iLength && $iRetrieved<$iSize) { // linelength > received buffer
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$sReadRem = $sRead;
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$sRead = '';
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}
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}
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if ($filter && $sRead) {
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$filter($sRead);
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}
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if ($outputstream && $sRead) {
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if (is_resource($outputstream)) {
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fwrite($outputstream,$sRead);
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} else if ($outputstream == 'php://stdout') {
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echo $sRead;
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}
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}
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if ($no_return) {
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$sRead = '';
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} else {
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$results .= $sRead;
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}
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}
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return $results;
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}
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/**
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* Obsolete function, inform plugins that use it
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* @deprecated use sqimap_run_command or sqimap_run_command_list instead
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*/
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function sqimap_read_data_list($imap_stream, $tag, $handle_errors,
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&$response, &$message, $query = '') {
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global $color, $squirrelmail_language;
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set_up_language($squirrelmail_language);
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require_once(SM_PATH . 'functions/display_messages.php');
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$string = "<b><font color=$color[2]>\n" .
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_("ERROR : Bad function call.") .
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"</b><br>\n" .
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_("Reason:") . ' '.
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'There is a plugin installed which make use of the <br>' .
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'SquirrelMail internal function sqimap_read_data_list.<br>'.
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'Please adapt the installed plugin and let it use<br>'.
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'sqimap_run_command or sqimap_run_command_list instead<br><br>'.
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'The following query was issued:<br>'.
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htmlspecialchars($query) . '<br>' . "</font><br>\n";
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error_box($string,$color);
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echo '</body></html>';
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exit;
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}
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/**
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* Function to display an error related to an IMAP-query.
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* @param string title the caption of the error box
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* @param string query the query that went wrong
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* @param string message_title optional message title
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* @param string message optional error message
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* @param string $link an optional link to try again
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* @return void
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*/
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function sqimap_error_box($title, $query = '', $message_title = '', $message = '', $link = '')
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{
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global $color, $squirrelmail_language;
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set_up_language($squirrelmail_language);
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require_once(SM_PATH . 'functions/display_messages.php');
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$string = "<font color=$color[2]><b>\n" . $title . "</b><br>\n";
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$cmd = explode(' ',$query);
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$cmd= strtolower($cmd[0]);
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if ($query != '' && $cmd != 'login')
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$string .= _("Query:") . ' ' . htmlspecialchars($query) . '<br>';
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if ($message_title != '')
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$string .= $message_title;
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if ($message != '')
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$string .= htmlspecialchars($message);
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$string .= "</font><br>\n";
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if ($link != '')
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$string .= $link;
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error_box($string,$color);
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}
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/**
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* Reads the output from the IMAP stream. If handle_errors is set to true,
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* this will also handle all errors that are received. If it is not set,
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* the errors will be sent back through $response and $message.
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*/
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function sqimap_retrieve_imap_response($imap_stream, $tag, $handle_errors,
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&$response, &$message, $query = '',
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$filter = false, $outputstream = false, $no_return = false) {
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global $color, $squirrelmail_language;
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$read = '';
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if (!is_array($message)) $message = array();
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if (!is_array($response)) $response = array();
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$aResponse = '';
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$resultlist = array();
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$data = array();
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$read = sqimap_fgets($imap_stream);
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$i = $k = 0;
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while ($read) {
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$char = $read{0};
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switch ($char)
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{
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case '+':
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default:
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$read = sqimap_fgets($imap_stream);
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break;
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case $tag{0}:
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{
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/* get the command */
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$arg = '';
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$i = strlen($tag)+1;
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$s = substr($read,$i);
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if (($j = strpos($s,' ')) || ($j = strpos($s,"\n"))) {
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$arg = substr($s,0,$j);
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}
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$found_tag = substr($read,0,$i-1);
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if ($found_tag) {
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switch ($arg)
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{
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case 'OK':
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case 'BAD':
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case 'NO':
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case 'BYE':
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case 'PREAUTH':
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$response[$found_tag] = $arg;
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$message[$found_tag] = trim(substr($read,$i+strlen($arg)));
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if (!empty($data)) {
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$resultlist[] = $data;
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}
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$aResponse[$found_tag] = $resultlist;
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$data = $resultlist = array();
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if ($found_tag == $tag) {
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break 3; /* switch switch while */
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}
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break;
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default:
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/* this shouldn't happen */
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$response[$found_tag] = $arg;
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$message[$found_tag] = trim(substr($read,$i+strlen($arg)));
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if (!empty($data)) {
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$resultlist[] = $data;
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}
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$aResponse[$found_tag] = $resultlist;
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$data = $resultlist = array();
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if ($found_tag == $tag) {
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break 3; /* switch switch while */
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}
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}
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}
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$read = sqimap_fgets($imap_stream);
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if ($read === false) { /* error */
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break 3; /* switch switch while */
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}
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break;
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} // end case $tag{0}
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case '*':
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{
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if (preg_match('/^\*\s\d+\sFETCH/',$read)) {
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/* check for literal */
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$s = substr($read,-3);
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$fetch_data = array();
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do { /* outer loop, continue until next untagged fetch
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or tagged reponse */
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do { /* innerloop for fetching literals. with this loop
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we prohibid that literal responses appear in the
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outer loop so we can trust the untagged and
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tagged info provided by $read */
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if ($s === "}\r\n") {
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$j = strrpos($read,'{');
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$iLit = substr($read,$j+1,-3);
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$fetch_data[] = $read;
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$sLiteral = sqimap_fread($imap_stream,$iLit,$filter,$outputstream,$no_return);
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if ($sLiteral === false) { /* error */
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break 4; /* while while switch while */
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}
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/* backwards compattibility */
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$aLiteral = explode("\n", $sLiteral);
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/* release not neaded data */
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unset($sLiteral);
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foreach ($aLiteral as $line) {
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$fetch_data[] = $line ."\n";
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}
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/* release not neaded data */
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unset($aLiteral);
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/* next fgets belongs to this fetch because
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we just got the exact literalsize and there
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must follow data to complete the response */
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$read = sqimap_fgets($imap_stream);
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if ($read === false) { /* error */
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break 4; /* while while switch while */
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}
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$fetch_data[] = $read;
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} else {
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$fetch_data[] = $read;
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}
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/* retrieve next line and check in the while
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statements if it belongs to this fetch response */
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$read = sqimap_fgets($imap_stream);
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if ($read === false) { /* error */
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break 4; /* while while switch while */
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}
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/* check for next untagged reponse and break */
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if ($read{0} == '*') break 2;
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$s = substr($read,-3);
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} while ($s === "}\r\n");
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$s = substr($read,-3);
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} while ($read{0} !== '*' &&
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substr($read,0,strlen($tag)) !== $tag);
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$resultlist[] = $fetch_data;
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/* release not neaded data */
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unset ($fetch_data);
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} else {
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$s = substr($read,-3);
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do {
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if ($s === "}\r\n") {
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$j = strrpos($read,'{');
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$iLit = substr($read,$j+1,-3);
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$data[] = $read;
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$sLiteral = fread($imap_stream,$iLit);
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if ($sLiteral === false) { /* error */
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$read = false;
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break 3; /* while switch while */
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}
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$data[] = $sLiteral;
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$data[] = sqimap_fgets($imap_stream);
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} else {
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$data[] = $read;
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}
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$read = sqimap_fgets($imap_stream);
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if ($read === false) {
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break 3; /* while switch while */
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} else if ($read{0} == '*') {
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break;
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}
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$s = substr($read,-3);
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} while ($s === "}\r\n");
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break 1;
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}
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break;
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} // end case '*'
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} // end switch
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} // end while
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|
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/* error processing in case $read is false */
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if ($read === false) {
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unset($data);
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if ($handle_errors) {
|
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sqimap_error_box(_("ERROR : Connection dropped by imap-server."), $query);
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exit;
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}
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}
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|
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/* Set $resultlist array */
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if (!empty($data)) {
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//$resultlist[] = $data;
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}
|
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elseif (empty($resultlist)) {
|
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$resultlist[] = array();
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}
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|
|
/* Return result or handle errors */
|
|
if ($handle_errors == false) {
|
|
return $aResponse;
|
|
}
|
|
switch ($response[$tag]) {
|
|
case 'OK':
|
|
return $aResponse;
|
|
break;
|
|
case 'NO':
|
|
/* ignore this error from M$ exchange, it is not fatal (aka bug) */
|
|
if (strstr($message[$tag], 'command resulted in') === false) {
|
|
sqimap_error_box(_("ERROR : Could not complete request."), $query, _("Reason Given: "), $message[$tag]);
|
|
echo '</body></html>';
|
|
exit;
|
|
}
|
|
break;
|
|
case 'BAD':
|
|
sqimap_error_box(_("ERROR : Bad or malformed request."), $query, _("Server responded: "), $message[$tag]);
|
|
echo '</body></html>';
|
|
exit;
|
|
case 'BYE':
|
|
sqimap_error_box(_("ERROR : Imap server closed the connection."), $query, _("Server responded: "), $message[$tag]);
|
|
echo '</body></html>';
|
|
exit;
|
|
default:
|
|
sqimap_error_box(_("ERROR : Unknown imap response."), $query, _("Server responded: "), $message[$tag]);
|
|
/* the error is displayed but because we don't know the reponse we
|
|
return the result anyway */
|
|
return $aResponse;
|
|
break;
|
|
}
|
|
}
|
|
|
|
function sqimap_read_data ($imap_stream, $tag_uid, $handle_errors,
|
|
&$response, &$message, $query = '',
|
|
$filter=false,$outputstream=false,$no_return=false) {
|
|
|
|
$tag_uid_a = explode(' ',trim($tag_uid));
|
|
$tag = $tag_uid_a[0];
|
|
|
|
$res = sqimap_retrieve_imap_response($imap_stream, $tag, $handle_errors,
|
|
$response, $message, $query,$filter,$outputstream,$no_return);
|
|
/* sqimap_read_data should be called for one response
|
|
but since it just calls sqimap_retrieve_imap_response which
|
|
handles multiple responses we need to check for that
|
|
and merge the $res array IF they are seperated and
|
|
IF it was a FETCH response. */
|
|
|
|
// if (isset($res[1]) && is_array($res[1]) && isset($res[1][0])
|
|
// && preg_match('/^\* \d+ FETCH/', $res[1][0])) {
|
|
// $result = array();
|
|
// foreach($res as $index=>$value) {
|
|
// $result = array_merge($result, $res["$index"]);
|
|
// }
|
|
// }
|
|
if (isset($result)) {
|
|
return $result[$tag];
|
|
}
|
|
else {
|
|
return $res;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Connects to the IMAP server and returns a resource identifier for use with
|
|
* the other SquirrelMail IMAP functions. Does NOT login!
|
|
* @param string server hostname of IMAP server
|
|
* @param int port port number to connect to
|
|
* @param bool tls whether to use TLS when connecting.
|
|
* @return imap-stream resource identifier
|
|
*/
|
|
function sqimap_create_stream($server,$port,$tls=false) {
|
|
global $username, $use_imap_tls;
|
|
|
|
if ($use_imap_tls == true) {
|
|
if ((check_php_version(4,3)) and (extension_loaded('openssl'))) {
|
|
/* Use TLS by prefixing "tls://" to the hostname */
|
|
$server = 'tls://' . $imap_server_address;
|
|
} else {
|
|
require_once(SM_PATH . 'functions/display_messages.php');
|
|
$string = "Unable to connect to IMAP server!<br>TLS is enabled, but this " .
|
|
"version of PHP does not support TLS sockets, or is missing the openssl " .
|
|
"extension.<br><br>Please contact your system administrator.";
|
|
logout_error($string,$color);
|
|
}
|
|
}
|
|
|
|
$imap_stream = fsockopen($server, $port, $error_number, $error_string, 15);
|
|
|
|
/* Do some error correction */
|
|
if (!$imap_stream) {
|
|
set_up_language($squirrelmail_language, true);
|
|
require_once(SM_PATH . 'functions/display_messages.php');
|
|
$string = sprintf (_("Error connecting to IMAP server: %s.") .
|
|
"<br>\r\n", $server) .
|
|
"$error_number : $error_string<br>\r\n";
|
|
logout_error($string,$color);
|
|
exit;
|
|
}
|
|
$server_info = fgets ($imap_stream, 1024);
|
|
return $imap_stream;
|
|
}
|
|
|
|
/**
|
|
* Logs the user into the imap server. If $hide is set, no error messages
|
|
* will be displayed. This function returns the imap connection handle.
|
|
*/
|
|
function sqimap_login ($username, $password, $imap_server_address, $imap_port, $hide) {
|
|
global $color, $squirrelmail_language, $onetimepad, $use_imap_tls,
|
|
$imap_auth_mech, $sqimap_capabilities;
|
|
|
|
if (!isset($onetimepad) || empty($onetimepad)) {
|
|
sqgetglobalvar('onetimepad' , $onetimepad , SQ_SESSION );
|
|
}
|
|
if (!isset($sqimap_capabilities)) {
|
|
sqgetglobalvar('sqimap_capabilities' , $capability , SQ_SESSION );
|
|
}
|
|
|
|
$host = $imap_server_address;
|
|
$imap_server_address = sqimap_get_user_server($imap_server_address, $username);
|
|
|
|
$imap_stream = sqimap_create_stream($imap_server_address,$imap_port,$use_imap_tls);
|
|
|
|
/* Decrypt the password */
|
|
$password = OneTimePadDecrypt($password, $onetimepad);
|
|
|
|
if (($imap_auth_mech == 'cram-md5') OR ($imap_auth_mech == 'digest-md5')) {
|
|
// We're using some sort of authentication OTHER than plain or login
|
|
$tag=sqimap_session_id(false);
|
|
if ($imap_auth_mech == 'digest-md5') {
|
|
$query = $tag . " AUTHENTICATE DIGEST-MD5\r\n";
|
|
} elseif ($imap_auth_mech == 'cram-md5') {
|
|
$query = $tag . " AUTHENTICATE CRAM-MD5\r\n";
|
|
}
|
|
fputs($imap_stream,$query);
|
|
$answer=sqimap_fgets($imap_stream);
|
|
// Trim the "+ " off the front
|
|
$response=explode(" ",$answer,3);
|
|
if ($response[0] == '+') {
|
|
// Got a challenge back
|
|
$challenge=$response[1];
|
|
if ($imap_auth_mech == 'digest-md5') {
|
|
$reply = digest_md5_response($username,$password,$challenge,'imap',$host);
|
|
} elseif ($imap_auth_mech == 'cram-md5') {
|
|
$reply = cram_md5_response($username,$password,$challenge);
|
|
}
|
|
fputs($imap_stream,$reply);
|
|
$read=sqimap_fgets($imap_stream);
|
|
if ($imap_auth_mech == 'digest-md5') {
|
|
// DIGEST-MD5 has an extra step..
|
|
if (substr($read,0,1) == '+') { // OK so far..
|
|
fputs($imap_stream,"\r\n");
|
|
$read=sqimap_fgets($imap_stream);
|
|
}
|
|
}
|
|
$results=explode(" ",$read,3);
|
|
$response=$results[1];
|
|
$message=$results[2];
|
|
} else {
|
|
// Fake the response, so the error trap at the bottom will work
|
|
$response="BAD";
|
|
$message='IMAP server does not appear to support the authentication method selected.';
|
|
$message .= ' Please contact your system administrator.';
|
|
}
|
|
} elseif ($imap_auth_mech == 'login') {
|
|
// Original IMAP login code
|
|
$query = 'LOGIN "' . quoteimap($username) . '" "' . quoteimap($password) . '"';
|
|
$read = sqimap_run_command ($imap_stream, $query, false, $response, $message);
|
|
} elseif ($imap_auth_mech == 'plain') {
|
|
/***
|
|
* SASL PLAIN
|
|
*
|
|
* RFC 2595 Chapter 6
|
|
*
|
|
* The mechanism consists of a single message from the client to the
|
|
* server. The client sends the authorization identity (identity to
|
|
* login as), followed by a US-ASCII NUL character, followed by the
|
|
* authentication identity (identity whose password will be used),
|
|
* followed by a US-ASCII NUL character, followed by the clear-text
|
|
* password. The client may leave the authorization identity empty to
|
|
* indicate that it is the same as the authentication identity.
|
|
*
|
|
**/
|
|
$tag=sqimap_session_id(false);
|
|
$sasl = (isset($capability['SASL-IR']) && $capability['SASL-IR']) ? true : false;
|
|
$auth = base64_encode("$username\0$username\0$password");
|
|
if ($sasl) {
|
|
// IMAP Extension for SASL Initial Client Response
|
|
// <draft-siemborski-imap-sasl-initial-response-01b.txt>
|
|
$query = $tag . " AUTHENTICATE PLAIN $auth\r\n";
|
|
fputs($imap_stream, $query);
|
|
$read = sqimap_fgets($imap_stream);
|
|
} else {
|
|
$query = $tag . " AUTHENTICATE PLAIN\r\n";
|
|
fputs($imap_stream, $query);
|
|
$read=sqimap_fgets($imap_stream);
|
|
if (substr($read,0,1) == '+') { // OK so far..
|
|
fputs($imap_stream, "$auth\r\n");
|
|
$read = sqimap_fgets($imap_stream);
|
|
}
|
|
}
|
|
$results=explode(" ",$read,3);
|
|
$response=$results[1];
|
|
$message=$results[2];
|
|
} else {
|
|
$response="BAD";
|
|
$message="Internal SquirrelMail error - unknown IMAP authentication method chosen. Please contact the developers.";
|
|
}
|
|
|
|
/* If the connection was not successful, lets see why */
|
|
if ($response != 'OK') {
|
|
if (!$hide) {
|
|
if ($response != 'NO') {
|
|
/* "BAD" and anything else gets reported here. */
|
|
$message = htmlspecialchars($message);
|
|
set_up_language($squirrelmail_language, true);
|
|
require_once(SM_PATH . 'functions/display_messages.php');
|
|
if ($response == 'BAD') {
|
|
$string = sprintf (_("Bad request: %s")."<br>\r\n", $message);
|
|
} else {
|
|
$string = sprintf (_("Unknown error: %s") . "<br>\n", $message);
|
|
}
|
|
if (isset($read) && is_array($read)) {
|
|
$string .= '<br>' . _("Read data:") . "<br>\n";
|
|
foreach ($read as $line) {
|
|
$string .= htmlspecialchars($line) . "<br>\n";
|
|
}
|
|
}
|
|
error_box($string,$color);
|
|
exit;
|
|
} else {
|
|
/*
|
|
* If the user does not log in with the correct
|
|
* username and password it is not possible to get the
|
|
* correct locale from the user's preferences.
|
|
* Therefore, apply the same hack as on the login
|
|
* screen.
|
|
*
|
|
* $squirrelmail_language is set by a cookie when
|
|
* the user selects language and logs out
|
|
*/
|
|
|
|
set_up_language($squirrelmail_language, true);
|
|
include_once(SM_PATH . 'functions/display_messages.php' );
|
|
sqsession_destroy();
|
|
logout_error( _("Unknown user or password incorrect.") );
|
|
exit;
|
|
}
|
|
} else {
|
|
exit;
|
|
}
|
|
}
|
|
return $imap_stream;
|
|
}
|
|
|
|
/**
|
|
* Simply logs out the IMAP session
|
|
* @param stream imap_stream the IMAP connection to log out.
|
|
* @return void
|
|
*/
|
|
function sqimap_logout ($imap_stream) {
|
|
/* Logout is not valid until the server returns 'BYE'
|
|
* If we don't have an imap_ stream we're already logged out */
|
|
if(isset($imap_stream) && $imap_stream)
|
|
sqimap_run_command($imap_stream, 'LOGOUT', false, $response, $message);
|
|
}
|
|
|
|
/**
|
|
* Retreive the CAPABILITY string from the IMAP server.
|
|
* If capability is set, returns only that specific capability,
|
|
* else returns array of all capabilities.
|
|
*/
|
|
function sqimap_capability($imap_stream, $capability='') {
|
|
global $sqimap_capabilities;
|
|
if (!is_array($sqimap_capabilities)) {
|
|
$read = sqimap_run_command($imap_stream, 'CAPABILITY', true, $a, $b);
|
|
|
|
$c = explode(' ', $read[0]);
|
|
for ($i=2; $i < count($c); $i++) {
|
|
$cap_list = explode('=', $c[$i]);
|
|
if (isset($cap_list[1])) {
|
|
$sqimap_capabilities[$cap_list[0]] = $cap_list[1];
|
|
} else {
|
|
$sqimap_capabilities[$cap_list[0]] = TRUE;
|
|
}
|
|
}
|
|
}
|
|
if ($capability) {
|
|
if (isset($sqimap_capabilities[$capability])) {
|
|
return $sqimap_capabilities[$capability];
|
|
} else {
|
|
return false;
|
|
}
|
|
}
|
|
return $sqimap_capabilities;
|
|
}
|
|
|
|
/**
|
|
* Returns the delimeter between mailboxes: INBOX/Test, or INBOX.Test
|
|
*/
|
|
function sqimap_get_delimiter ($imap_stream = false) {
|
|
global $sqimap_delimiter, $optional_delimiter;
|
|
|
|
/* Use configured delimiter if set */
|
|
if((!empty($optional_delimiter)) && $optional_delimiter != 'detect') {
|
|
return $optional_delimiter;
|
|
}
|
|
|
|
/* Do some caching here */
|
|
if (!$sqimap_delimiter) {
|
|
if (sqimap_capability($imap_stream, 'NAMESPACE')) {
|
|
/*
|
|
* According to something that I can't find, this is supposed to work on all systems
|
|
* OS: This won't work in Courier IMAP.
|
|
* OS: According to rfc2342 response from NAMESPACE command is:
|
|
* OS: * NAMESPACE (PERSONAL NAMESPACES) (OTHER_USERS NAMESPACE) (SHARED NAMESPACES)
|
|
* OS: We want to lookup all personal NAMESPACES...
|
|
*/
|
|
$read = sqimap_run_command($imap_stream, 'NAMESPACE', true, $a, $b);
|
|
if (eregi('\\* NAMESPACE +(\\( *\\(.+\\) *\\)|NIL) +(\\( *\\(.+\\) *\\)|NIL) +(\\( *\\(.+\\) *\\)|NIL)', $read[0], $data)) {
|
|
if (eregi('^\\( *\\((.*)\\) *\\)', $data[1], $data2)) {
|
|
$pn = $data2[1];
|
|
}
|
|
$pna = explode(')(', $pn);
|
|
while (list($k, $v) = each($pna)) {
|
|
$lst = explode('"', $v);
|
|
if (isset($lst[3])) {
|
|
$pn[$lst[1]] = $lst[3];
|
|
} else {
|
|
$pn[$lst[1]] = '';
|
|
}
|
|
}
|
|
}
|
|
$sqimap_delimiter = $pn[0];
|
|
} else {
|
|
fputs ($imap_stream, ". LIST \"INBOX\" \"\"\r\n");
|
|
$read = sqimap_read_data($imap_stream, '.', true, $a, $b);
|
|
$read = $read['.'][0]; //sqimap_read_data() now returns a tag array of response array
|
|
$quote_position = strpos ($read[0], '"');
|
|
$sqimap_delimiter = substr ($read[0], $quote_position+1, 1);
|
|
}
|
|
}
|
|
return $sqimap_delimiter;
|
|
}
|
|
|
|
/**
|
|
* This encodes a mailbox name for use in IMAP commands.
|
|
* @param string what the mailbox to encode
|
|
* @return string the encoded mailbox string
|
|
*/
|
|
function sqimap_encode_mailbox_name($what)
|
|
{
|
|
if (ereg("[\"\\\r\n]", $what))
|
|
return '{' . strlen($what) . "}\r\n" . $what; /* 4.3 literal form */
|
|
return '"' . $what . '"'; /* 4.3 quoted string form */
|
|
}
|
|
|
|
|
|
/**
|
|
* Gets the number of messages in the current mailbox.
|
|
*/
|
|
function sqimap_get_num_messages ($imap_stream, $mailbox) {
|
|
$read_ary = sqimap_run_command ($imap_stream, 'EXAMINE ' . sqimap_encode_mailbox_name($mailbox), false, $result, $message);
|
|
for ($i = 0; $i < count($read_ary); $i++) {
|
|
if (ereg("[^ ]+ +([^ ]+) +EXISTS", $read_ary[$i], $regs)) {
|
|
return $regs[1];
|
|
}
|
|
}
|
|
return false; //"BUG! Couldn't get number of messages in $mailbox!";
|
|
}
|
|
|
|
function parseAddress($address, $max=0) {
|
|
$aTokens = array();
|
|
$aAddress = array();
|
|
$iCnt = strlen($address);
|
|
$aSpecials = array('(' ,'<' ,',' ,';' ,':');
|
|
$aReplace = array(' (',' <',' ,',' ;',' :');
|
|
$address = str_replace($aSpecials,$aReplace,$address);
|
|
$i = $iAddrFound = $bGroup = 0;
|
|
while ($i < $iCnt) {
|
|
$cChar = $address{$i};
|
|
switch($cChar)
|
|
{
|
|
case '<':
|
|
$iEnd = strpos($address,'>',$i+1);
|
|
if (!$iEnd) {
|
|
$sToken = substr($address,$i);
|
|
$i = $iCnt;
|
|
} else {
|
|
$sToken = substr($address,$i,$iEnd - $i +1);
|
|
$i = $iEnd;
|
|
}
|
|
$sToken = str_replace($aReplace, $aSpecials,$sToken);
|
|
$aTokens[] = $sToken;
|
|
break;
|
|
case '"':
|
|
$iEnd = strpos($address,$cChar,$i+1);
|
|
if ($iEnd) {
|
|
// skip escaped quotes
|
|
$prev_char = $address{$iEnd-1};
|
|
while ($prev_char === '\\' && substr($address,$iEnd-2,2) !== '\\\\') {
|
|
$iEnd = strpos($address,$cChar,$iEnd+1);
|
|
if ($iEnd) {
|
|
$prev_char = $address{$iEnd-1};
|
|
} else {
|
|
$prev_char = false;
|
|
}
|
|
}
|
|
}
|
|
if (!$iEnd) {
|
|
$sToken = substr($address,$i);
|
|
$i = $iCnt;
|
|
} else {
|
|
// also remove the surrounding quotes
|
|
$sToken = substr($address,$i+1,$iEnd - $i -1);
|
|
$i = $iEnd;
|
|
}
|
|
$sToken = str_replace($aReplace, $aSpecials,$sToken);
|
|
if ($sToken) $aTokens[] = $sToken;
|
|
break;
|
|
case '(':
|
|
$iEnd = strpos($address,')',$i);
|
|
if (!$iEnd) {
|
|
$sToken = substr($address,$i);
|
|
$i = $iCnt;
|
|
} else {
|
|
$sToken = substr($address,$i,$iEnd - $i + 1);
|
|
$i = $iEnd;
|
|
}
|
|
$sToken = str_replace($aReplace, $aSpecials,$sToken);
|
|
$aTokens[] = $sToken;
|
|
break;
|
|
case ',':
|
|
++$iAddrFound;
|
|
case ';':
|
|
if (!$bGroup) {
|
|
++$iAddrFound;
|
|
} else {
|
|
$bGroup = false;
|
|
}
|
|
if ($max && $max == $iAddrFound) {
|
|
break 2;
|
|
} else {
|
|
$aTokens[] = $cChar;
|
|
break;
|
|
}
|
|
case ':':
|
|
$bGroup = true;
|
|
case ' ':
|
|
$aTokens[] = $cChar;
|
|
break;
|
|
default:
|
|
$iEnd = strpos($address,' ',$i+1);
|
|
if ($iEnd) {
|
|
$sToken = trim(substr($address,$i,$iEnd - $i));
|
|
$i = $iEnd-1;
|
|
} else {
|
|
$sToken = trim(substr($address,$i));
|
|
$i = $iCnt;
|
|
}
|
|
if ($sToken) $aTokens[] = $sToken;
|
|
}
|
|
++$i;
|
|
}
|
|
$sPersonal = $sEmail = $sComment = $sGroup = '';
|
|
$aStack = $aComment = array();
|
|
foreach ($aTokens as $sToken) {
|
|
if ($max && $max == count($aAddress)) {
|
|
return $aAddress;
|
|
}
|
|
$cChar = $sToken{0};
|
|
switch ($cChar)
|
|
{
|
|
case '=':
|
|
case '"':
|
|
case ' ':
|
|
$aStack[] = $sToken;
|
|
break;
|
|
case '(':
|
|
$aComment[] = substr($sToken,1,-1);
|
|
break;
|
|
case ';':
|
|
if ($sGroup) {
|
|
$sEmail = trim(implode(' ',$aStack));
|
|
$aAddress[] = array($sGroup,$sEmail);
|
|
$aStack = $aComment = array();
|
|
$sGroup = '';
|
|
break;
|
|
}
|
|
case ',':
|
|
if (!$sEmail) {
|
|
while (count($aStack) && !$sEmail) {
|
|
$sEmail = trim(array_pop($aStack));
|
|
}
|
|
}
|
|
if (count($aStack)) {
|
|
$sPersonal = trim(implode('',$aStack));
|
|
} else {
|
|
$sPersonal = '';
|
|
}
|
|
if (!$sPersonal && count($aComment)) {
|
|
$sComment = implode(' ',$aComment);
|
|
$sPersonal .= $sComment;
|
|
}
|
|
$aAddress[] = array($sEmail,$sPersonal);
|
|
$sPersonal = $sComment = $sEmail = '';
|
|
$aStack = $aComment = array();
|
|
break;
|
|
case ':':
|
|
$sGroup = implode(' ',$aStack); break;
|
|
$aStack = array();
|
|
break;
|
|
case '<':
|
|
$sEmail = trim(substr($sToken,1,-1));
|
|
break;
|
|
case '>':
|
|
/* skip */
|
|
break;
|
|
default: $aStack[] = $sToken; break;
|
|
}
|
|
}
|
|
/* now do the action again for the last address */
|
|
if (!$sEmail) {
|
|
while (count($aStack) && !$sEmail) {
|
|
$sEmail = trim(array_pop($aStack));
|
|
}
|
|
}
|
|
if (count($aStack)) {
|
|
$sPersonal = trim(implode('',$aStack));
|
|
} else {
|
|
$sPersonal = '';
|
|
}
|
|
if (!$sPersonal && count($aComment)) {
|
|
$sComment = implode(' ',$aComment);
|
|
$sPersonal .= $sComment;
|
|
}
|
|
$aAddress[] = array($sEmail,$sPersonal);
|
|
return $aAddress;
|
|
}
|
|
|
|
|
|
/**
|
|
* Returns the number of unseen messages in this folder.
|
|
*/
|
|
function sqimap_unseen_messages ($imap_stream, $mailbox) {
|
|
$read_ary = sqimap_run_command ($imap_stream, 'STATUS ' . sqimap_encode_mailbox_name($mailbox) . ' (UNSEEN)', false, $result, $message);
|
|
$i = 0;
|
|
$regs = array(false, false);
|
|
while (isset($read_ary[$i])) {
|
|
if (ereg("UNSEEN ([0-9]+)", $read_ary[$i], $regs)) {
|
|
break;
|
|
}
|
|
$i++;
|
|
}
|
|
return $regs[1];
|
|
}
|
|
|
|
/**
|
|
* Returns the number of total/unseen/recent messages in this folder
|
|
*/
|
|
function sqimap_status_messages ($imap_stream, $mailbox) {
|
|
$read_ary = sqimap_run_command ($imap_stream, 'STATUS ' . sqimap_encode_mailbox_name($mailbox) . ' (MESSAGES UNSEEN RECENT)', false, $result, $message);
|
|
$i = 0;
|
|
$messages = $unseen = $recent = false;
|
|
$regs = array(false,false);
|
|
while (isset($read_ary[$i])) {
|
|
if (preg_match('/UNSEEN\s+([0-9]+)/i', $read_ary[$i], $regs)) {
|
|
$unseen = $regs[1];
|
|
}
|
|
if (preg_match('/MESSAGES\s+([0-9]+)/i', $read_ary[$i], $regs)) {
|
|
$messages = $regs[1];
|
|
}
|
|
if (preg_match('/RECENT\s+([0-9]+)/i', $read_ary[$i], $regs)) {
|
|
$recent = $regs[1];
|
|
}
|
|
$i++;
|
|
}
|
|
return array('MESSAGES' => $messages, 'UNSEEN'=>$unseen, 'RECENT' => $recent);
|
|
}
|
|
|
|
|
|
/**
|
|
* Saves a message to a given folder -- used for saving sent messages
|
|
*/
|
|
function sqimap_append ($imap_stream, $sent_folder, $length) {
|
|
fputs ($imap_stream, sqimap_session_id() . ' APPEND ' . sqimap_encode_mailbox_name($sent_folder) . " (\\Seen) \{$length}\r\n");
|
|
$tmp = fgets ($imap_stream, 1024);
|
|
}
|
|
|
|
function sqimap_append_done ($imap_stream, $folder='') {
|
|
global $squirrelmail_language, $color;
|
|
fputs ($imap_stream, "\r\n");
|
|
$tmp = fgets ($imap_stream, 1024);
|
|
if (preg_match("/(.*)(BAD|NO)(.*)$/", $tmp, $regs)) {
|
|
set_up_language($squirrelmail_language);
|
|
require_once(SM_PATH . 'functions/display_messages.php');
|
|
$reason = $regs[3];
|
|
if ($regs[2] == 'NO') {
|
|
$string = "<b><font color=$color[2]>\n" .
|
|
_("ERROR : Could not append message to") ." $folder." .
|
|
"</b><br>\n" .
|
|
_("Server responded: ") .
|
|
$reason . "<br>\n";
|
|
if (preg_match("/(.*)(quota)(.*)$/i", $reason, $regs)) {
|
|
$string .= _("Solution: ") .
|
|
_("Remove unneccessary messages from your folder and start with your Trash folder.")
|
|
."<br>\n";
|
|
}
|
|
$string .= "</font>\n";
|
|
error_box($string,$color);
|
|
} else {
|
|
$string = "<b><font color=$color[2]>\n" .
|
|
_("ERROR : Bad or malformed request.") .
|
|
"</b><br>\n" .
|
|
_("Server responded: ") .
|
|
$tmp . "</font><br>\n";
|
|
error_box($string,$color);
|
|
exit;
|
|
}
|
|
}
|
|
}
|
|
|
|
function sqimap_get_user_server ($imap_server, $username) {
|
|
if (substr($imap_server, 0, 4) != "map:") {
|
|
return $imap_server;
|
|
}
|
|
$function = substr($imap_server, 4);
|
|
return $function($username);
|
|
}
|
|
|
|
/**
|
|
* This is an example that gets imapservers from yellowpages (NIS).
|
|
* you can simple put map:map_yp_alias in your $imap_server_address
|
|
* in config.php use your own function instead map_yp_alias to map your
|
|
* LDAP whatever way to find the users imapserver.
|
|
*/
|
|
function map_yp_alias($username) {
|
|
$yp = `ypmatch $username aliases`;
|
|
return chop(substr($yp, strlen($username)+1));
|
|
}
|
|
|
|
?>
|