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| <?php |
| // $Id: ezmlm-parser.php,v 1.1 2005-09-22 14:02:46 ddelon Exp $ |
| // |
| // ezmlm-parser.php - ezmlm-php v2.0 |
| // -------------------------------------------------------------- |
| // Contains all the code for parsing messages. |
| // It handles all the nessesary decoding, attachments, etc... |
| // Note this does all the parsing itself now removing the dependancy |
| // on the mailparse library (as it looks like it will never make |
| // it into the official inclusion with PHP)... |
| // -------------------------------------------------------------- |
| |
| require_once("ezmlm.php"); |
| require_once("Mail/mimeDecode.php") ; |
| // CLASS: ezmlm-parser |
| class ezmlm_parser extends ezmlm_php { |
| var $headers; // the full untouched headers of the message |
| var $body; // the full untouched (but decoded) body (this is not $this->parts[0]->body) |
| var $parts; // all the parts, if it is a multipart message. each part is an ezmlm_parser object... |
| |
| // Here's the most accessed headers, everything else can be |
| // accessed from the $this->headers array. |
| var $to; // To: |
| var $from; // From: |
| var $date; // Date: |
| var $subject; // Subject: |
| var $replyto; // Reply-To: |
| var $contenttype; // Content-Type: |
| |
| var $multipart; // TRUE if the message is a multipart message |
| |
| var $msgfile; // if parsed from a file, this is the filename... |
| |
| // functions |
| |
| // recent_msgs - parses and returns an arbitrary number of the most recent messages |
| function recent_msgs($show = 20, $month = "") { |
| if ($month == "") { $month = date("Ym"); } |
| $threadyear = substr($month,0,4); |
| $threadmonth = substr($month,4,2); |
| |
| if (!is_file($this->listdir . "/archive/threads/" . $month)) { |
| if ($threadmonth == '01') { $prevthread = ($threadyear - 1) . "12"; } |
| else if ($threadmonth >= 11) { $prevthread = $threadyear . ($threadmonth - 1); } |
| else { $prevthread = $threadyear . "0" . ($threadmonth - 1); } |
| return $this->recent_msgs($show,$prevthread); |
| } |
| // on ouvre les fichiers de threads du dernier mois |
| $fd = fopen($this->listdir . "/archive/threads/" . $month, "r"); |
| fseek($fd,-256,SEEK_END); |
| |
| // on récupère la dernière ligne |
| |
| while (!feof($fd)) { |
| $temp = fgets($fd,4096); |
| if ($temp != "") { $curthread = $temp; } |
| } |
| $nombre_message = 0 ; |
| fseek ($fd, 0) ; |
| while (!feof($fd)) { |
| $nombre_message++; |
| fgets($fd); |
| } |
| fclose($fd); |
| ///echo "<br />".$curthread."<br />" ; |
| $subjectfile = preg_replace("/^[0-9]*\:([a-z]*) \[.*/", "\\1", $curthread); |
| $subjectfile = substr($subjectfile,0,2) . "/" . substr($subjectfile,2,18); // on ne garde que les 2 1ère lettre du hash, slash et le reste du hash |
| |
| // on ouvre le fichier des sujets |
| // présenté comme suit : |
| // hash sujet originel (sur la première ligne) |
| // num_message:annéemois:hash_auteur Nom Auteur |
| $fd = fopen($this->listdir . "/archive/subjects/" . $subjectfile, "r"); |
| fseek($fd,-512,SEEK_END); |
| |
| // on prend la dernière ligne |
| while (!feof($fd)) { |
| $temp = fgets($fd,4096); |
| if ($temp != "") { $cursubject = $temp; } |
| } |
| fclose($fd); |
| |
| list($msgnum,$fromthread,$authorid) = split(":",$cursubject); |
| $msgdir = (int)($msgnum / 100); // on reconstruit le répertoire du message en divisant son numéro par 100 |
| |
| $numshown = 0; |
| |
| $msgfiles = array(); |
| // on boucle 100 fois |
| for ($i = 0; $i <= 99; $i++) { |
| if (($msgdir == 0) and ($i == 0)) { $i++; }; |
| if ($i < 10) { $msgfile = "0" . $i; } |
| else { $msgfile = $i; } |
| if (!is_file($this->listdir . "/archive/" . $msgdir . "/" . $msgfile)) { break; } |
| |
| } |
| if ($show == '') $show = $nombre_message ; // Si aucun paramètre n'est passé on renvoie tous les fichiers du mois |
| while ($numshown < $show) { |
| $i--; |
| if ($i < 0) { |
| $i = 99; |
| $msgdir--; |
| if ($msgdir < 0) { break; } |
| } |
| if ($i < 10) { |
| $msgfile = $this->listdir . "/archive/" . $msgdir . "/0" . $i; |
| } else { |
| $msgfile = $this->listdir . "/archive/" . $msgdir . "/" . $i; |
| } |
| /* |
| $msg = new ezmlm_parser(); |
| $msg->parse_file($msgfile); |
| */ |
| if (!is_file($msgfile)) { |
| if (is_file($this->listdir . "/" . $msgfile)) { |
| $msgfile = $this->listdir . "/" . $msgfile; |
| } else if (is_file($this->listdir . "/archive/" . $msgfile)) { |
| $msgfile = $this->listdir . "/archive/" . $msgfile; |
| } else { |
| return $msgfiles; |
| } |
| } |
| $message = file_get_contents($msgfile) ; |
| $mimeDecode = new Mail_mimeDecode($message) ; |
| $mailDecode = $mimeDecode->decode() ; |
| $mailDecode->msgfile = $msgfile ; |
| $mailDecode->nummessage = $msgdir.$i ; |
| $msgfiles[] = $mailDecode ; |
| |
| unset($mailDecode); |
| $numshown++; |
| } |
| |
| return $msgfiles; |
| } |
| |
| |
| // parse_file - opens a file and feeds the data to parse, file can be relative to the listdir |
| function parse_file($file,$simple = FALSE) { |
| if (!is_file($file)) { |
| if (is_file($this->listdir . "/" . $file)) { $file = $this->listdir . "/" . $file; } |
| else if (is_file($this->listdir . "/archive/" . $file)) { $file = $this->listdir . "/archive/" . $file; } |
| else { return FALSE; } |
| } |
| |
| $this->msgfile = $file; |
| $data = '' ; |
| $fd = fopen($file, "r"); |
| while (!feof($fd)) { $data .= fgets($fd,4096); } |
| fclose($fd); |
| return $this->parse($data,$simple); |
| } |
| |
| // parse_file_headers - ouvre un fichier et analyse les entêtes |
| function parse_file_headers($file,$simple = FALSE) { |
| if (!is_file($file)) { |
| if (is_file($this->listdir . "/" . $file)) { $file = $this->listdir . "/" . $file; } |
| else if (is_file($this->listdir . "/archive/" . $file)) { $file = $this->listdir . "/archive/" . $file; } |
| else { return FALSE; } |
| } |
| |
| $this->msgfile = $file; |
| $data = file_get_contents ($file) ; |
| $message = file_get_contents($file) ; |
| $mimeDecode = new Mail_mimeDecode($message) ; |
| $mailDecode = $mimeDecode->decode() ; |
| return $mailDecode ; |
| /*$fd = fopen($file, "r"); |
| while (!feof($fd)) { $data .= fgets($fd,4096); } |
| fclose($fd);*/ |
| if ($this->_get_headers($data, $simple)) return true ; |
| return false ; |
| } |
| |
| // this does all of the work (well it calls two functions that do all the work :) |
| // all the decoding a part breaking follows RFC2045 (http://www.faqs.org/rfcs/rfc2045.html) |
| function parse($data,$simple = FALSE) { |
| |
| if (($this->_get_headers($data,$simple)) && $this->_get_body($data,$simple)) { return TRUE; } |
| return FALSE; |
| } |
| |
| // all of these are internal functions, you shouldn't call them directly... |
| |
| // _ct_parse: parse Content-Type headers -> $ct[0] = Full header, $ct[1] = Content-Type, $ct[2] ... $ct[n] = AP's |
| function _ct_parse() { |
| $instr = $this->headers['content-type']; |
| preg_replace('/\(.*\)/','',$instr); // strip rfc822 comments |
| if (preg_match('/: /', $instr)) { |
| $ct = preg_split('/:/',trim($instr),2); |
| $ct = preg_split('/;/',trim($ct[1])); |
| } else { |
| $ct = preg_split('/;/',trim($instr)); |
| } |
| if (isset($ct[1])) $attrs = preg_split('/[\s\n]/',$ct[1]); |
| $i = 2; |
| $ct[1] = $ct[0]; |
| $ct[0] = $this->headers['content-type']; |
| if (isset($attrs) && is_array($attrs)) { |
| while (list($key, $val) = each($attrs)) { |
| if ($val == '') continue; |
| $ap = preg_split('/=/',$val,2); |
| if (preg_match('/^"/',$ap[1])) { $ap[1] = substr($ap[1],1,strlen($ap[1])-2); } |
| $ct[$i] = $ap; |
| $i++; |
| } |
| } |
| // are we a multipart message? |
| if (preg_match('/^multipart/i', $ct[1])) { $this->multipart = TRUE; } |
| |
| return $ct; |
| } |
| |
| // _get_headers: pulls the headers out of the data and builds the $this->headers array |
| function _get_headers($data,$simple = FALSE) { |
| $lines = preg_split('/\n/', $data); |
| while (list($key, $val) = each($lines)) { |
| $val = trim($val); |
| if ($val == "") break; |
| if (preg_match('/^From[^:].*$/', $val)) continue; /* strips out any From lines added by the MTA */ |
| |
| $hdr = preg_split('/: /', $val, 2); |
| if (count($hdr) == 1) { |
| // this is a continuation of the last header (like a recieved from line) |
| $this->headers[$last] .= $val; |
| } else { |
| $this->headers[strtolower($hdr[0])] = $hdr[1]; |
| //echo htmlspecialchars($this->headers['from'])."<br />" ; |
| $last = strtolower($hdr[0]); |
| } |
| } |
| // ajout alex |
| // pour supprimer le problème des ISO... |
| // a déplacer ailleur, et appelé avant affichage |
| |
| if (preg_match ('/windows-[0-9][0-9][0-9][0-9]/', $this->headers['subject'], $nombre)) { |
| $reg_exp = $nombre[0] ; |
| } else { |
| $reg_exp = 'ISO-8859-15?' ; |
| } |
| if (preg_match ('/UTF/i', $this->headers['subject'])) $reg_exp = 'UTF-8' ; |
| preg_match_all ("/=\?$reg_exp\?(Q|B)\?(.*?)\?=/i", $this->headers['subject'], $match, PREG_PATTERN_ORDER) ; |
| for ($i = 0; $i < count ($match[0]); $i++ ) { |
| |
| if ($match[1][$i] == 'Q') { |
| $decode = quoted_printable_decode ($match[2][$i]) ; |
| } elseif ($match[1][$i] == 'B') { |
| $decode = base64_decode ($match[2][$i]) ; |
| } |
| $decode = preg_replace ("/_/", " ", $decode) ; |
| if ($reg_exp == 'UTF-8') { |
| $decode = utf8_decode ($decode) ; |
| } |
| $this->headers['subject'] = str_replace ($match[0][$i], $decode, $this->headers['subject']) ; |
| } |
| // sanity anyone? |
| if (!$this->headers['content-type']) { $this->headers['content-type'] = "text/plain; charset=us-ascii"; } |
| if (!$simple) { $this->headers['content-type'] = $this->_ct_parse(); } |
| |
| |
| return TRUE; |
| } |
| |
| // _get_body: pulls the body out of the data and fills $this->body, decoding the data if nessesary. |
| function _get_body($data,$simple = FALSE) { |
| $lines = preg_split('/\n/', $data); |
| $doneheaders = FALSE; |
| |
| $data = ""; |
| while (list($key,$val) = each($lines)) { |
| //echo htmlspecialchars($val)."<br>"; |
| if (($val == '') and (!$doneheaders)) { |
| $doneheaders = TRUE; |
| continue; |
| } else if ($doneheaders) { |
| $data .= $val . "\n"; |
| } |
| } |
| |
| // now here comes the fun part... decoding. |
| switch($this->headers['content-transfer-encoding']) { |
| case 'binary': |
| $this->body = $this->_cte_8bit($this->_cte_qp($this->_cte_binary($data)),$simple); |
| break; |
| |
| case 'base64': |
| $this->body = $this->_cte_8bit($this->_cte_qp($this->_cte_base64($data)),$simple); |
| break; |
| |
| case 'quoted-printable': |
| $this->body = $this->_cte_8bit($this->_cte_qp($data),$simple); |
| break; |
| |
| case '8bit': |
| $this->body = $this->_cte_8bit($data,$simple); |
| break; |
| |
| case '7bit': // 7bit doesn't need to be decoded |
| default: // And the fall through as well... |
| $this->body = $data; |
| break; |
| } |
| //echo $this->headers['content-type'][2][1]; |
| if (isset($this->headers['content-type'][2][1]) && $this->headers['content-type'][2][1] == 'UTF-8') { |
| //$this->body = utf8_decode ($this->body) ; |
| //echo quoted_printable_decode(utf8_decode ($this->body)) ; |
| } |
| if ($simple) { return TRUE; } |
| |
| // if we are a multipart message then break up the parts and decode, set the appropriate variables. |
| // here comes the best part about making ezmlm-php OOP. since each part is just really a little message |
| // in itself each part becomes a new parser object and all the wheels turn again... :) |
| if ($this->multipart) { |
| |
| $boundary = ''; |
| for ($i = 2; $i <= count($this->headers['content-type']); $i++) { |
| if (preg_match('/boundary/i', $this->headers['content-type'][$i][0])) { |
| $boundary = $this->headers['content-type'][$i][1]; |
| |
| } |
| } |
| if ($boundary != '') { |
| $this->_get_parts($this->body,$boundary); |
| } else { |
| // whoopps... something's not right here. we were told that the message is supposed |
| // to be a multipart message, yet the boundary wasn't set in the content type. |
| // mark the message as non multipart and add a message to the top of the body. |
| $this->multipart = FALSE; |
| $this->body = "PARSER ERROR:\nWHILE PARSING THIS MESSAGE AS A MULTIPART MESSAGE AS DEFINED IN RFC2045 THE BOUNDARY IDENTIFIER WAS NOT FOUND!\nTHIS MESSAGE WILL NOT DISPLAY CORRECTLY!\n\n" . $this->body; |
| } |
| } |
| |
| return TRUE; |
| } |
| |
| // _get_parts: breaks up $data into parts based on $boundary following the rfc specs |
| // detailed in section 5 of RFC2046 (http://www.faqs.org/rfcs/rfc2046.html) |
| // After the parts are broken up they are then turned into parser objects and the |
| // resulting array of parts is set to $this->parts; |
| function _get_parts($data,$boundary) { |
| $inpart = -1; |
| $lines = preg_split('/\n/', $data); |
| // La première partie contient l'avertissement pour les client mail ne supportant pas |
| // multipart, elle est stocké dans parts[-1] |
| while(list($key,$val) = each($lines)) { |
| if ($val == "--" . $boundary) { $inpart++; continue; } // start of a part |
| else if ($val == "--" . $boundary . "--") { break; } // the end of the last part |
| else { $parts[$inpart] .= $val . "\n"; } |
| } |
| |
| for ($i = 0; $i < count($parts) - 1; $i++) { // On saute la première partie |
| $part[$i] = new ezmlm_parser(); |
| $part[$i]->parse($parts[$i]); |
| $this->parts[$i] = $part[$i]; |
| //echo $this->parts[$i]."<br>" ; |
| } |
| |
| } |
| |
| // _cte_8bit: decode a content transfer encoding of 8bit |
| // NOTE: this function is a little bit special. Since the end result will be displayed in |
| // a web browser _cte_8bit decodes ASCII characters > 127 (the US-ASCII table) into the |
| // html ordinal equivilant, it also ensures that the messages content-type is changed |
| // to include text/html if it changes anything... |
| function _cte_8bit($data,$simple = FALSE) { |
| if ($simple) { return $data; } |
| $changed = FALSE; |
| $chars = preg_split('//',$data); |
| while (list($key,$val) = each($chars)) { |
| if (ord($val) > 127) { $out .= '&#' . ord($val) . ';'; $changed = TRUE; } |
| else { $out .= $val; } |
| } |
| if ($changed) { $this->headers['content-type'][1] = 'text/html'; } |
| return $out; |
| } |
| |
| // _cte_binary: decode a content transfer encoding of binary |
| function _cte_binary($data) { return $data; } |
| |
| // _cte_base64: decode a content transfer encoding of base64 |
| function _cte_base64($data) { return base64_decode($data); } |
| |
| // _cte_qp: decode a content transfer encoding of quoted_printable |
| function _cte_qp($data) { |
| // For the time being we'll use PHP's function, it seems to work well enough. |
| return quoted_printable_decode($data); |
| } |
| |
| } |