mirror of
https://github.com/OpenXE-org/OpenXE.git
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313 lines
9.7 KiB
PHP
313 lines
9.7 KiB
PHP
<?php
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/*
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* IMAP include file, contains all email importing functions
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* STILL EXPERIMENTAL - USE WITH CARE! you've been warned :)
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*/
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class IMAP {
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function __construct()
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{
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// supported protocols
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$this->IMAP_IMAP = 1;
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$this->IMAP_POP3 = 2;
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$this->IMAP_IMAP_SSL = 3;
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$this->IMAP_POP3_SSL = 4;
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}
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/* decode mime format strings */
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function imap_decode($text, $targetCharset = 'UTF-8')
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{
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$elements=imap_mime_header_decode($text);
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$i=0;
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$check = '';
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$celements = !empty($elements)?count($elements):0;
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for($i=0;$i<$celements;$i++)
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{
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$sourceCharset = $elements[$i]->charset;
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if ($sourceCharset === 'default' || empty($sourceCharset)) {
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$sourceCharset = 'ISO-8859-1';
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}
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$text = iconv($sourceCharset, $targetCharset, $elements[$i]->text);
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$check .= htmlspecialchars($text, ENT_COMPAT, $targetCharset, true);
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}
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if(!empty($check))
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{
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return $check;
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}
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else
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{
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return htmlspecialchars($elements[$i]->text,ENT_COMPAT,'ISO-8859-1', true);
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}
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}
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/* get mime type */
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function imap_get_mime_type(&$structure)
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{
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$primary_mime_type = array("TEXT", "MULTIPART", "MESSAGE", "APPLICATION", "AUDIO", "IMAGE", "VIDEO", "OTHER");
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if($structure->subtype){
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return $primary_mime_type[(int)$structure->type] . '/' . $structure->subtype;
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}
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return "TEXT/PLAIN";
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}
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/* get part of body by mime type */
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function imap_get_part($stream, $msg_number, $mime_type, $structure = false, $part_number = false)
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{
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if(!$structure)
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$structure = @imap_fetchstructure($stream, $msg_number);
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if($structure)
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{
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if($mime_type == $this->imap_get_mime_type($structure))
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{
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if(!$part_number)
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$part_number = "1";
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$text = imap_fetchbody($stream, $msg_number, $part_number);
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if($structure->encoding == 3)
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return imap_base64($text);
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else if($structure->encoding == 4)
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return imap_qprint($text);
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else
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return $text;
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}
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if($structure->type == 1) /* multipart */
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{
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while(list($index, $sub_structure) = each($structure->parts))
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{
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$prefix="";
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if($part_number)
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$prefix = $part_number . '.';
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$data = $this->imap_get_part($stream, $msg_number, $mime_type, $sub_structure, $prefix . ($index + 1));
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if($data)
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return $data;
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}
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}
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}
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return false;
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}
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function imap_serverpath($server,$port,$folder,$type)
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{
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//determine protocol type and fix the server connect string
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switch($type)
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{
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case $this->IMAP_IMAP: $server_path = '{'.$server.':'.$port.'/novalidate-cert}'.$folder; break;
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case $this->IMAP_POP3: $server_path = '{'.$server.':'.$port.'/pop3}'.$folder; break;
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case $this->IMAP_IMAP_SSL: $server_path = '{'.$server.':'.$port.'/imap/ssl/novalidate-cert}'.$folder; break;
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case $this->IMAP_POP3_SSL: $server_path = '{'.$server.':'.$port.'/pop3/ssl}'.$folder; break;
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default: $server_path = '{'.$server.':'.$port.'}'.$folder; break;
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}
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return $server_path;
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}
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/* connect to server and fetch an $mailbox object */
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function imap_connect($server,$port,$folder,$username,$password,$type)
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{
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$server_path = $this->imap_serverpath($server,$port,$folder,$type);
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return imap_open($server_path, $username, $password);
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}
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/* return number of messages in current mailbox */
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function imap_message_count($mailbox)
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{
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if ($header = imap_check($mailbox))
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return $header->Nmsgs;
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else
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return 0;
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}
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function flattenParts($messageParts, $flattenedParts = array(), $prefix = '', $index = 1, $fullPrefix = true) {
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foreach($messageParts as $part) {
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$flattenedParts[$prefix.$index] = $part;
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if(isset($part->parts)) {
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if($part->type == 2) {
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$flattenedParts = $this->flattenParts($part->parts, $flattenedParts, $prefix.$index.'.', 0, false);
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}
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elseif($fullPrefix) {
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$flattenedParts = $this->flattenParts($part->parts, $flattenedParts, $prefix.$index.'.');
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}
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else {
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$flattenedParts = $this->flattenParts($part->parts, $flattenedParts, $prefix);
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}
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unset($flattenedParts[$prefix.$index]->parts);
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}
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$index++;
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}
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return $flattenedParts;
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}
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/* close server connection gracefully */
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function imap_disconnect($mailbox)
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{
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return imap_close($mailbox);
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}
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function encodeToUtf8($string) {
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return mb_convert_encoding($string, "UTF-8", mb_detect_encoding($string, "UTF-8, ISO-8859-1, ISO-8859-15", true));
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}
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function extract_attachments($connection, $message_number) {
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$attachments = array();
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$structure = imap_fetchstructure($connection, $message_number);
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if(!empty($structure->parts) && (!empty($structure->parts)?count($structure->parts):0)) {
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$cparts = (!empty($structure->parts)?count($structure->parts):0);
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for($i = 0; $i < $cparts; $i++) {
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$attachments[$i] = array(
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'is_attachment' => false,
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'filename' => '',
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'name' => '',
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'attachment' => ''
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);
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if($structure->parts[$i]->ifdparameters) {
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foreach($structure->parts[$i]->dparameters as $object) {
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if(strtolower($object->attribute) == 'filename') {
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$attachments[$i]['is_attachment'] = true;
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$attachments[$i]['filename'] = $object->value;
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}
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}
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}
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if($structure->parts[$i]->ifparameters) {
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foreach($structure->parts[$i]->parameters as $object) {
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if(strtolower($object->attribute) == 'name') {
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$attachments[$i]['is_attachment'] = true;
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$attachments[$i]['name'] = $object->value;
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}
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}
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}
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if($attachments[$i]['is_attachment']) {
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$attachments[$i]['attachment'] = imap_fetchbody($connection, $message_number, $i+1);
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if($structure->parts[$i]->encoding == 3) { // 3 = BASE64
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$attachments[$i]['attachment'] = base64_decode($attachments[$i]['attachment']);
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}
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elseif($structure->parts[$i]->encoding == 4) { // 4 = QUOTED-PRINTABLE
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$attachments[$i]['attachment'] =
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quoted_printable_decode($attachments[$i]['attachment']);
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}
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}
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}
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}
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return $attachments;
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}
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function extract_attachments2($mbox, $mid) {
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$this->htmlmsg="";
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$this->plainmsg="";
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$this->charset="";
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unset($this->attachments);
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// BODY
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$s = imap_fetchstructure($mbox,$mid);
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if (!$s->parts) // simple
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$this->getpart($mbox,$mid,$s,0); // pass 0 as part-number
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else { // multipart: cycle through each part
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foreach ($s->parts as $partno0=>$p) {
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$this->getpart($mbox, $mid, $p, $partno0 + 1);
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}
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}
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unset($attachments);
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$cattachments = !empty($this->attachments)?count($this->attachments):0;
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for($i=0;$i<$cattachments;$i++)
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{
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$attachments[$i]['attachment'] = $this->attachments[$i][1];
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$attachments[$i]['is_attachment'] = true;
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$attachments[$i]['filename'] = $this->attachments[$i][0];
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$attachments[$i]['name'] = $this->attachments[$i][0];
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}
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return !empty($attachments)?$attachments:null;
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}
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function getpart($mbox,$mid,$p,$partno) {
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// $partno = '1', '2', '2.1', '2.1.3', etc for multipart, 0 if simple
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// DECODE DATA
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$data = ($partno)?
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imap_fetchbody($mbox,$mid,$partno): // multipart
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imap_body($mbox,$mid); // simple
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// Any part may be encoded, even plain text messages, so check everything.
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if ($p->encoding==4){
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$data = quoted_printable_decode($data);
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}
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elseif ($p->encoding==3){
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$data = base64_decode($data);
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}
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// PARAMETERS
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// get all parameters, like charset, filenames of attachments, etc.
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$params = array();
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if (!empty($p->parameters)){
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foreach ($p->parameters as $x) {
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$params[strtolower($x->attribute)] = $x->value;
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}
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}
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if (!empty($p->dparameters)){
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foreach ($p->dparameters as $x) {
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$params[strtolower($x->attribute)] = $x->value;
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}
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}
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// ATTACHMENT
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// Any part with a filename is an attachment,
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// so an attached text file (type 0) is not mistaken as the message.
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if ($params['filename'] || $params['name']) {
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// filename may be given as 'Filename' or 'Name' or both
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$filename = ($params['filename'])? $params['filename'] : $params['name'];
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// filename may be encoded, so see imap_mime_header_decode()
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$this->attachments[] = array($filename,$data); // this is a problem if two files have same name
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}
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/*
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// TEXT
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if ($p->type==0 && $data) {
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// Messages may be split in different parts because of inline attachments,
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// so append parts together with blank row.
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if (strtolower($p->subtype)=='plain')
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$this->plainmsg. = trim($data) ."\n\n";
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else
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$this->htmlmsg. = $data ."<br><br>";
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$this->charset = $params['charset']; // assume all parts are same charset
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}
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// EMBEDDED MESSAGE
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// Many bounce notifications embed the original message as type 2,
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// but AOL uses type 1 (multipart), which is not handled here.
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// There are no PHP functions to parse embedded messages,
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// so this just appends the raw source to the main message.
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elseif ($p->type==2 && $data) {
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$this->plainmsg. = $data."\n\n";
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}
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*/
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// SUBPART RECURSION
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if (!empty($p->parts)) {
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foreach ($p->parts as $partno0=>$p2) {
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$this->getpart($mbox, $mid, $p2, $partno . '.' . ($partno0 + 1)); // 1.2, 1.2.1, etc.
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}
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}
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}
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}
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