mirror of
https://bitbucket.org/jsuto/piler.git
synced 2024-11-07 22:41:59 +01:00
introduced a simplified mime decoder class
Signed-off-by: Janos SUTO <sj@acts.hu>
This commit is contained in:
Janos SUTO
parent
445e6e96bd
commit
698cc86548
@ -1,7 +1,7 @@
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<?php
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require 'Zend/Mime/Decode.php';
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require 'Zend/Exception.php';
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require DIR_SYSTEM . 'helper/mime.php';
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class ModelSearchMessage extends Model {
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@ -12,24 +12,6 @@ class ModelSearchMessage extends Model {
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public $message;
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private $verification = 0;
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public function get_boundary($line='') {
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$parts = explode(";", $line);
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for($i=0; $i<count($parts); $i++) {
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if(stristr($parts[$i], "boundary")) {
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$parts[$i] = preg_replace("/boundary\s{0,}=\s{0,}/i", "boundary=", $parts[$i]);
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$parts[$i] = preg_replace("/\"\;{0,1}/", "", $parts[$i]);
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$parts[$i] = preg_replace("/\'/", "", $parts[$i]);
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$b = explode("boundary=", $parts[$i]);
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return rtrim($b[count($b)-1]);
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}
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}
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return "";
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}
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public function verify_message($piler_id = '', $data = '') {
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if($piler_id == '') { return 0; }
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@ -122,11 +104,11 @@ class ModelSearchMessage extends Model {
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$msg = $this->get_raw_message($id);
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Zend_Mime_Decode::splitMessageRaw($msg, $headers, $body);
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Piler_Mime_Decode::splitMessageRaw($msg, $headers, $body);
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$has_journal = $this->remove_journal($headers);
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$headers = $this->escape_lt_gt_symbols($headers);
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$headers = Piler_Mime_Decode::escape_lt_gt_symbols($headers);
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return array('headers' => $headers, 'has_journal' => $has_journal);
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}
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@ -170,7 +152,7 @@ class ModelSearchMessage extends Model {
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$p = '';
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$data = $this->escape_lt_gt_symbols($data);
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$data = Piler_Mime_Decode::escape_lt_gt_symbols($data);
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}
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return $data;
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@ -228,53 +210,22 @@ class ModelSearchMessage extends Model {
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$has_journal = $this->remove_journal($msg);
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Zend_Mime_Decode::splitMessage($msg, $headers, $body);
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$boundary = $this->get_boundary($headers['content-type']);
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Piler_Mime_Decode::splitMessage($msg, $headers, $body);
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if(is_array($headers['from'])) { $headers['from'] = $headers['from'][0]; }
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if(is_array($headers['to'])) { $headers['to'] = $headers['to'][0]; }
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if(is_array($headers['cc'])) { $headers['cc'] = $headers['cc'][0]; }
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if(is_array($headers['subject'])) { $headers['subject'] = $headers['subject'][0]; }
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if(is_array($headers['date'])) { $headers['date'] = $headers['date'][0]; }
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if(isset($headers['from'])) $from .= $this->escape_lt_gt_symbols($headers['from']);
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if(isset($headers['to'])) $to .= $this->escape_lt_gt_symbols($headers['to']);
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if(isset($headers['cc'])) $cc .= $this->escape_lt_gt_symbols($headers['cc']);
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if(isset($headers['subject'])) $subject .= $this->escape_lt_gt_symbols($headers['subject']);
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if(isset($headers['date'])) $date .= $headers['date'];
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$this->message = array(
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'text/plain' => '',
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'text/html' => ''
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);
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$this->extract_textuals_from_mime_parts($headers, $body, $boundary);
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return array('from' => $from,
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'to' => $to,
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'cc' => $cc,
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'subject' => $this->highlight_search_terms($subject, $terms),
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'date' => $date,
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'message' => $this->message['text/html'] ? $this->message['text/html'] : $this->message['text/plain'],
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'has_journal' => $has_journal,
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'verification' => $this->verification
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);
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for($i=0; $i<count(Piler_Mime_Decode::HEADER_FIELDS); $i++) {
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if(isset($headers[Piler_Mime_Decode::HEADER_FIELDS[$i]]) && is_array($headers[Piler_Mime_Decode::HEADER_FIELDS[$i]])) {
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$headers[Piler_Mime_Decode::HEADER_FIELDS[$i]] = $headers[Piler_Mime_Decode::HEADER_FIELDS[$i][0]];
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}
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private function extract_textuals_from_mime_parts($headers = array(), $body = '', $boundary = '') {
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$mime_parts = array();
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if($boundary) {
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try {
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$mime_parts = Zend_Mime_Decode::splitMessageStruct($body, $boundary);
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}
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catch (Exception $e) {
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syslog(LOG_INFO, "Caught exception: " . $e->getMessage());
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}
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if(Piler_Mime_Decode::HEADER_FIELDS[$i] == 'date') {
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${Piler_Mime_Decode::HEADER_FIELDS[$i]} .= $headers[Piler_Mime_Decode::HEADER_FIELDS[$i]];
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} else {
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$mime_parts[] = array('header' => $headers, 'body' => $body);
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${Piler_Mime_Decode::HEADER_FIELDS[$i]} .= Piler_Mime_Decode::escape_lt_gt_symbols($headers[Piler_Mime_Decode::HEADER_FIELDS[$i]]);
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}
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}
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Piler_Mime_Decode::parseMessage($msg, $parts);
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require_once DIR_SYSTEM . 'helper/HTMLPurifier.standalone.php';
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@ -285,69 +236,33 @@ class ModelSearchMessage extends Model {
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$purifier = new HTMLPurifier($config);
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for($i=0; $i<count($mime_parts); $i++) {
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$mime = array(
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'content-type' => '',
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'encoding' => ''
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$this->message = array(
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'text/plain' => '',
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'text/html' => ''
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);
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if(isset($mime_parts[$i]['header']['content-type'])) {
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$mime['content-type'] = Zend_Mime_Decode::splitContentType($mime_parts[$i]['header']['content-type']);
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for($i=0; $i<count($parts); $i++) {
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$body = Piler_Mime_Decode::fixMimeBodyPart($parts[$i]['headers'], $parts[$i]['body']);
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if($parts[$i]['headers']['content-type']['type'] == 'text/html') {
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$this->message['text/html'] = $purifier->purify($body);
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}
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/*
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Fix the mime type for some emails having a single textual body part
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without the Content-type header.
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*/
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else if (count($mime_parts) == 1) {
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$mime['content-type']['type'] = 'text/plain';
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else {
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$this->message['text/plain'] = $body;
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}
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$mime['content-type']['type'] = strtolower($mime['content-type']['type']);
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if(in_array($mime['content-type']['type'], array('multipart/mixed', 'multipart/related', 'multipart/alternative')))
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$this->extract_textuals_from_mime_parts($mime_parts[$i]['header'], $mime_parts[$i]['body'], $mime['content-type']['boundary']);
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if(isset($mime_parts[$i]['header']['content-transfer-encoding']))
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$mime['encoding'] = $mime_parts[$i]['header']['content-transfer-encoding'];
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if(in_array($mime['content-type']['type'], array('text/plain', 'text/html')))
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$this->message[$mime['content-type']['type']] .= $this->fix_mime_body_part($purifier, $mime, $mime_parts[$i]['body']);
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}
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}
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private function fix_mime_body_part($purifier, $mime = array(), $body = '') {
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if($mime['encoding'] == 'quoted-printable')
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$body = Zend_Mime_Decode::decodeQuotedPrintable($body);
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if($mime['encoding'] == 'base64')
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$body = base64_decode($body);
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if(strtolower($mime['content-type']['charset']) != 'utf-8')
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$body = iconv($mime['content-type']['charset'], 'utf-8' . '//IGNORE', $body);
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if(strtolower($mime['content-type']['type']) == 'text/plain') {
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$body = $this->escape_lt_gt_symbols($body);
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$body = preg_replace("/\n/", "<br />\n", $body);
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$body = "\n" . $this->print_nicely($body);
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}
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if(strtolower($mime['content-type']['type']) == 'text/html') {
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$body = $purifier->purify($body);
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}
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return $body;
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}
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private function escape_lt_gt_symbols($s = '') {
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$s = preg_replace("/</", "<", $s);
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$s = preg_replace("/>/", ">", $s);
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return $s;
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return array('from' => $from,
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'to' => $to,
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'cc' => $cc,
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'subject' => $this->highlight_search_terms($subject, $terms),
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'date' => $date,
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'message' => $this->message['text/html'] ? $this->message['text/html'] : $this->message['text/plain'],
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'has_journal' => $has_journal,
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'verification' => $this->verification
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);
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}
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@ -405,25 +320,6 @@ class ModelSearchMessage extends Model {
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}
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private function print_nicely($chunk) {
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$k = 0;
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$nice_chunk = "";
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$x = explode(" ", $chunk);
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for($i=0; $i<count($x); $i++){
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$nice_chunk .= $x[$i] . " ";
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$k += strlen($x[$i]);
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if(strstr($x[$i], "\n")){ $k = 0; }
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if($k > 70){ $nice_chunk .= "\n"; $k = 0; }
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}
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return $nice_chunk;
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}
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public function NiceSize($size) {
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if($size < 1000) return "1k";
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if($size < 100000) return round($size/1000) . "k";
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303
webui/system/helper/mime.php
Normal file
303
webui/system/helper/mime.php
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@ -0,0 +1,303 @@
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<?php
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class Piler_Mime_Decode {
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const HEADER_FIELDS = ['from', 'to', 'cc', 'subject', 'date'];
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public static function parseMessage($message, &$result) {
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self::splitMessage($message, $headers, $body);
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$boundary = self::getBoundary($headers);
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// No boundary defined
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if($boundary == '') {
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if($headers['content-type']['type'] == "message/rfc822") {
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self::parseMessage($body, $result);
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}
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else {
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$result[] = array(
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'headers' => $headers,
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'body' => $body
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);
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}
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return;
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}
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$parts = self::splitMime($body, $boundary);
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for($i=0; $i<count($parts); $i++) {
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self::splitMessage($parts[$i], $headers, $body);
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$boundary = self::getBoundary($headers);
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if($boundary) {
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self::parseMessage($parts[$i], $result);
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}
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else {
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if(in_array($headers['content-type']['type'], ["text/plain", "text/html"])) {
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$result[] = array('headers' => $headers, 'body' => $body);
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}
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else if($headers['content-type']['type'] == "message/rfc822") {
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self::parseMessage($body, $result);
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}
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}
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}
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}
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public static function splitMime($body, $boundary) {
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$start = 0;
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$res = array();
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$body = self::remove_LF($body);
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// Extract the mime parts excluding the boundary itself
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$p = strpos($body, '--' . $boundary . "\n", $start);
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if($p === false) {
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// no parts found!
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return array();
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}
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// Position after first boundary line
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$start = $p + 3 + strlen($boundary);
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while(($p = strpos($body, '--' . $boundary . "\n", $start)) !== false) {
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$res[] = substr($body, $start, $p-$start);
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$start = $p + 3 + strlen($boundary);
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}
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// No more parts, find end boundary
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$p = strpos($body, '--' . $boundary . '--', $start);
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if($p === false) {
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return array();
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}
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// The remaining part also needs to be parsed:
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$res[] = substr($body, $start, $p - $start);
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return $res;
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}
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public static function splitMessage($message, &$headers, &$body, $EOL = "\n") {
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self::splitMessageRaw($message, $headers, $body);
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$headers = self::splitHeaders($headers);
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}
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public static function splitMessageRaw($message, &$headers, &$body, $EOL = "\n") {
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$headers = [];
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$body = '';
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$message = self::remove_LF($message);
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// Find an empty line between headers and body, otherwise we got a header-only message
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if(strpos($message, $EOL . $EOL)) {
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list($headers, $body) = explode($EOL . $EOL, $message, 2);
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}
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else {
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$headers = $message;
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}
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}
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public static function splitHeaders($headers) {
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$headers = self::headersToArray($headers);
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// normalize header names
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foreach ($headers as $name => $header) {
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$lower = strtolower($name);
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if($lower == $name) {
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continue;
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}
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unset($headers[$name]);
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if(!isset($headers[$lower])) {
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$headers[$lower] = $header;
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continue;
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}
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if(is_array($headers[$lower])) {
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$headers[$lower][] = $header;
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continue;
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}
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$headers[$lower] = array($headers[$lower], $header);
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}
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// Add some default values, if they are missing
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if(!isset($headers['content-type'])) { $headers['content-type'] = 'text/plain'; }
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for($i=0; $i<count(self::HEADER_FIELDS); $i++) {
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if(!isset($headers[self::HEADER_FIELDS[$i]])) { $headers[self::HEADER_FIELDS[$i]] = ''; }
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$headers[self::HEADER_FIELDS[$i]] = iconv_mime_decode($headers[self::HEADER_FIELDS[$i]], ICONV_MIME_DECODE_CONTINUE_ON_ERROR);
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}
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$headers['content-type'] = self::splitContentType($headers['content-type']);
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$headers['content-type']['type'] = strtolower($headers['content-type']['type']);
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return $headers;
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}
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public static function headersToArray($headers = '') {
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$token = '';
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$last_token = '';
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$result = array();
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$headers = explode("\n", $headers);
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foreach($headers as $h) {
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// Handle cases when there's no whitespace between the header key and value
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// eg. Subject:som
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$h = preg_replace("/^([\S]+):(\S)/", '${1}: ${2}', $h);
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$h = preg_replace("/\s{1,}/", " ", $h);
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$line = preg_split("/\s/", $h);
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// Skip line if it doesn't have a colon (:) and the 1st character is not a whitespace
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if(!ctype_space($h[0]) && !strchr($h, ':')) { continue; }
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if($line) {
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if(substr($line[0], -1) == ':') {
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$token = array_shift($line);
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$token = rtrim($token, ':');
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$last_token = $token;
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}
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else {
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$token = '';
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}
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$line_str = implode(" ", $line);
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if(!isset($result[$last_token])) {
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$result[$last_token] = $line_str;
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}
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else {
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if($token) {
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$result[$last_token] .= "\n";
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}
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$result[$last_token] .= ' ' . $line_str;
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}
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}
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}
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while(list($k, $v) = each($result)) {
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if(strchr($v, "\n")) {
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$result[$k] = explode("\n", $v);
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}
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}
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return $result;
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}
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public static function splitContentType($field = '') {
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$split = array();
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$what = 'type';
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$field = $what . '=' . $field;
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if(!preg_match_all('%([^=\s]+)\s*=\s*("[^"]+"|[^;]+)(;\s*|$)%', $field, $matches)) {
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return $split;
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}
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$split = array();
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foreach ($matches[1] as $key => $name) {
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$name = strtolower($name);
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if($matches[2][$key][0] == '"') {
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$split[$name] = substr($matches[2][$key], 1, -1);
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} else {
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$split[$name] = $matches[2][$key];
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}
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}
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return $split;
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}
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public static function remove_LF($message = '') {
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return str_replace("\r", "", $message);
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//return preg_replace("/\r/", "", $message);
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}
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public static function getBoundary($headers = array()) {
|
||||
if(isset($headers['content-type']['boundary'])) {
|
||||
return $headers['content-type']['boundary'];
|
||||
}
|
||||
|
||||
return '';
|
||||
}
|
||||
|
||||
|
||||
public static function fixMimeBodyPart($headers = array(), $body = '') {
|
||||
|
||||
if(isset($headers['content-transfer-encoding'])) {
|
||||
if($headers['content-transfer-encoding'] == 'quoted-printable') {
|
||||
$body = quoted_printable_decode($body);
|
||||
}
|
||||
|
||||
if($headers['content-transfer-encoding'] == 'base64') {
|
||||
$body = base64_decode($body);
|
||||
}
|
||||
}
|
||||
|
||||
if(isset($headers['content-type']['charset'])) {
|
||||
$body = iconv($headers['content-type']['charset'], 'utf-8' . '//IGNORE', $body);
|
||||
}
|
||||
|
||||
if(strtolower($headers['content-type']['type']) == 'text/plain') {
|
||||
$body = self::escape_lt_gt_symbols($body);
|
||||
$body = preg_replace("/\n/", "<br />\n", $body);
|
||||
$body = "\n" . self::printNicely($body);
|
||||
}
|
||||
|
||||
return $body;
|
||||
}
|
||||
|
||||
|
||||
public static function escape_lt_gt_symbols($s = '') {
|
||||
$s = preg_replace("/</", "<", $s);
|
||||
$s = preg_replace("/>/", ">", $s);
|
||||
|
||||
return $s;
|
||||
}
|
||||
|
||||
|
||||
public static function printNicely($s = '') {
|
||||
$k = 0;
|
||||
$nice = "";
|
||||
|
||||
$x = explode(" ", $s);
|
||||
|
||||
for($i=0; $i<count($x); $i++){
|
||||
$nice .= $x[$i] . " ";
|
||||
$k += strlen($x[$i]);
|
||||
|
||||
if(strstr($x[$i], "\n")){ $k = 0; }
|
||||
|
||||
if($k > 70){ $nice .= "\n"; $k = 0; }
|
||||
}
|
||||
|
||||
return $nice;
|
||||
}
|
||||
|
||||
}
|
||||
Loading…
Reference in New Issue
Block a user