<?php
+
/** mime.php
+ **
+ ** Copyright (c) 1999-2001 The Squirrelmail Development Team
+ ** Licensed under the GNU GPL. For full terms see the file COPYING.
**
** This contains the functions necessary to detect and decode MIME
** messages.
** $Id$
**/
- $debug_mime = false;
- $mime_php = true;
-
- if (!isset($i18n_php))
- include "../functions/i18n.php";
- if (!isset($imap_php))
- include "../functions/imap.php";
- if (!isset($config_php))
- include "../config/config.php";
-
+ require_once('../functions/imap.php');
+ require_once('../functions/attachment_common.php');
/** Setting up the objects that have the structure for the message **/
class msg_header {
/** msg_header contains generic variables for values that **/
/** could be in a header. **/
-
+
var $type0 = '', $type1 = '', $boundary = '', $charset = '';
var $encoding = '', $size = 0, $to = array(), $from = '', $date = '';
var $cc = array(), $bcc = array(), $reply_to = '', $subject = '';
var $id = 0, $mailbox = '', $description = '', $filename = '';
- var $entity_id = 0, $message_id = 0;
+ var $entity_id = 0, $message_id = 0, $name = '';
+ // var $priority = "";
}
-
+
class message {
/** message is the object that contains messages. It is a recursive
- object in that through the $entities variable, it can contain
+ object in that through the $entities variable, it can contain
more objects of type message. See documentation in mime.txt for
a better description of how this works.
- **/
+ **/
var $header = '';
var $entities = array();
-
+
function addEntity ($msg) {
$this->entities[] = $msg;
}
}
-
-
/* --------------------------------------------------------------------------------- */
/* MIME DECODING */
/* --------------------------------------------------------------------------------- */
-
+
// This function gets the structure of a message and stores it in the "message" class.
// It will return this object for use with all relevant header information and
// fully parsed into the standard "message" object format.
function mime_structure ($imap_stream, $header) {
- global $debug_mime;
- sqimap_messages_flag ($imap_stream, $header->id, $header->id, "Seen");
-
+
+ sqimap_messages_flag ($imap_stream, $header->id, $header->id, 'Seen');
+ $ssid = sqimap_session_id();
+ $lsid = strlen( $ssid );
$id = $header->id;
- fputs ($imap_stream, "a001 FETCH $id BODYSTRUCTURE\r\n");
+ fputs ($imap_stream, "$ssid FETCH $id BODYSTRUCTURE\r\n");
//
// This should use sqimap_read_data instead of reading it itself
//
$read = fgets ($imap_stream, 10000);
- $response = substr($read, 0, 4);
- $bodystructure = "";
- while ($response != "a001") {
+ $bodystructure = '';
+ while( substr($read, 0, $lsid) <> $ssid &&
+ !feof( $imap_stream ) ) {
$bodystructure .= $read;
$read = fgets ($imap_stream, 10000);
- $response = substr($read, 0, 4);
}
$read = $bodystructure;
- if ($debug_mime) echo "<tt>$read</tt><br><br>\n";
// isolate the body structure and remove beginning and end parenthesis
- $read = trim(substr ($read, strpos(strtolower($read), "bodystructure") + 13));
+ $read = trim(substr ($read, strpos(strtolower($read), 'bodystructure') + 13));
$read = trim(substr ($read, 0, -1));
$end = mime_match_parenthesis(0, $read);
while ($end == strlen($read)-1) {
$end = mime_match_parenthesis(0, $read);
}
- if ($debug_mime) echo "<tt>$read</tt><br><br>\n";
-
$msg = mime_parse_structure ($read, 0);
$msg->header = $header;
return $msg;
// then it parses it and adds the necessary header information (by calling out
// to mime_get_elements()
function mime_parse_structure ($structure, $ent_id) {
- global $debug_mime;
- if ($debug_mime) echo "<font color=008800><tt>START: mime_parse_structure()</tt></font><br>\n";
+
$msg = new message();
- if (substr($structure, 0, 1) == "(") {
+ if ($structure{0} == '(') {
$ent_id = mime_new_element_level($ent_id);
$start = $end = -1;
- if ($debug_mime) echo "<br><font color=0000aa><tt>$structure</tt></font><br>";
do {
- if ($debug_mime) echo "<font color=008800><tt>Found entity...</tt></font><br>";
$start = $end+1;
$end = mime_match_parenthesis ($start, $structure);
-
+
$element = substr($structure, $start+1, ($end - $start)-1);
$ent_id = mime_increment_id ($ent_id);
$newmsg = mime_parse_structure ($element, $ent_id);
$msg->addEntity ($newmsg);
- } while (substr($structure, $end+1, 1) == "(");
+ } while ($structure{$end+1} == '(');
} else {
// parse the elements
- if ($debug_mime) echo "<br><font color=0000aa><tt>$structure</tt></font><br>";
$msg = mime_get_element ($structure, $msg, $ent_id);
- if ($debug_mime) echo "<br>";
}
return $msg;
- if ($debug_mime) echo "<font color=008800><tt> END: mime_parse_structure()</tt></font><br>";
}
// Increments the element ID. An element id can look like any of
// the following: 1, 1.2, 4.3.2.4.1, etc. This function increments
// the last number of the element id, changing 1.2 to 1.3.
function mime_increment_id ($id) {
- global $debug_mime;
+
if (strpos($id, ".")) {
$first = substr($id, 0, strrpos($id, "."));
$last = substr($id, strrpos($id, ".")+1);
} else {
$new = $id + 1;
}
- if ($debug_mime) echo "<b>INCREMENT: $new</b><br>";
+
return $new;
}
// See comment for mime_increment_id().
// This adds another level on to the entity_id changing 1.3 to 1.3.0
- // NOTE: 1.3.0 is not a valid element ID. It MUST be incremented
+ // NOTE: 1.3.0 is not a valid element ID. It MUST be incremented
// before it can be used. I left it this way so as not to have
// to make a special case if it is the first entity_id. It
// always increments it, and that works fine.
function mime_new_element_level ($id) {
- if (!$id) $id = 0;
- else $id = $id . ".0";
- return $id;
+ if (!$id) {
+ $id = 0;
+ } else {
+ $id = $id . '.0';
+ }
+
+ return( $id );
}
function mime_get_element (&$structure, $msg, $ent_id) {
- global $debug_mime;
+
$elem_num = 1;
$msg->header = new msg_header();
$msg->header->entity_id = $ent_id;
-
+ $properties = array();
+
while (strlen($structure) > 0) {
$structure = trim($structure);
- $char = substr($structure, 0, 1);
+ $char = $structure{0};
- if (strtolower(substr($structure, 0, 3)) == "nil") {
- $text = "";
+ if (strtolower(substr($structure, 0, 3)) == 'nil') {
+ $text = '';
$structure = substr($structure, 3);
- } else if ($char == "\"") {
+ } else if ($char == '"') {
// loop through until we find the matching quote, and return that as a string
$pos = 1;
- $char = substr($structure, $pos, 1);
- $text = "";
- while ($char != "\"" && $pos < strlen($structure)) {
+ $text = '';
+ while ( ($char = $structure{$pos} ) <> '"' && $pos < strlen($structure)) {
$text .= $char;
$pos++;
- $char = substr($structure, $pos, 1);
- }
+ }
$structure = substr($structure, strlen($text) + 2);
- } else if ($char == "(") {
+ } else if ($char == '(') {
// comment me
$end = mime_match_parenthesis (0, $structure);
$sub = substr($structure, 1, $end-1);
- if (! isset($properties))
- $properties = array();
$properties = mime_get_props($properties, $sub);
$structure = substr($structure, strlen($sub) + 2);
} else {
// loop through until we find a space or an end parenthesis
$pos = 0;
- $char = substr($structure, $pos, 1);
- $text = "";
- while ($char != " " && $char != ")" && $pos < strlen($structure)) {
+ $char = $structure{$pos};
+ $text = '';
+ while ($char != ' ' && $char != ')' && $pos < strlen($structure)) {
$text .= $char;
$pos++;
- $char = substr($structure, $pos, 1);
+ $char = $structure{$pos};
}
$structure = substr($structure, strlen($text));
}
- if ($debug_mime) echo "<tt>$elem_num : $text</tt><br>";
// This is where all the text parts get put into the header
switch ($elem_num) {
- case 1:
+ case 1:
$msg->header->type0 = strtolower($text);
- if ($debug_mime) echo "<tt>type0 = ".strtolower($text)."</tt><br>";
break;
- case 2:
+ case 2:
$msg->header->type1 = strtolower($text);
- if ($debug_mime) echo "<tt>type1 = ".strtolower($text)."</tt><br>";
break;
+ case 4: // Id
+ // Invisimail enclose images with <>
+ $msg->header->id = str_replace( '<', '', str_replace( '>', '', $text ) );
+ break;
case 5:
$msg->header->description = $text;
- if ($debug_mime) echo "<tt>description = $text</tt><br>";
break;
case 6:
$msg->header->encoding = strtolower($text);
- if ($debug_mime) echo "<tt>encoding = ".strtolower($text)."</tt><br>";
break;
case 7:
$msg->header->size = $text;
- if ($debug_mime) echo "<tt>size = $text</tt><br>";
break;
default:
- if ($msg->header->type0 == "text" && $elem_num == 8) {
+ if ($msg->header->type0 == 'text' && $elem_num == 8) {
// This is a plain text message, so lets get the number of lines
// that it contains.
$msg->header->num_lines = $text;
- if ($debug_mime) echo "<tt>num_lines = $text</tt><br>";
- } else if ($msg->header->type0 == "message" && $msg->header->type1 == "rfc822" && $elem_num == 8) {
- // This is an encapsulated message, so lets start all over again and
+ } else if ($msg->header->type0 == 'message' && $msg->header->type1 == 'rfc822' && $elem_num == 8) {
+ // This is an encapsulated message, so lets start all over again and
// parse this message adding it on to the existing one.
$structure = trim($structure);
- if (substr($structure, 0, 1) == "(") {
+ if ( $structure{0} == '(' ) {
$e = mime_match_parenthesis (0, $structure);
$structure = substr($structure, 0, $e);
$structure = substr($structure, 1);
$m = mime_parse_structure($structure, $msg->header->entity_id);
-
+
// the following conditional is there to correct a bug that wasn't
// incrementing the entity IDs correctly because of the special case
// that message/rfc822 is. This fixes it fine.
- if (substr($structure, 1, 1) != "(")
+ if (substr($structure, 1, 1) != '(')
$m->header->entity_id = mime_increment_id(mime_new_element_level($ent_id));
-
+
// Now we'll go through and reformat the results.
if ($m->entities) {
for ($i=0; $i < count($m->entities); $i++) {
} else {
$msg->addEntity($m);
}
- $structure = "";
+ $structure = "";
}
}
break;
$text = "";
}
// loop through the additional properties and put those in the various headers
- if ($msg->header->type0 != "message") {
+ if ($msg->header->type0 != 'message') {
for ($i=0; $i < count($properties); $i++) {
- $msg->header->{$properties[$i]["name"]} = $properties[$i]["value"];
- if ($debug_mime) echo "<tt>".$properties[$i]["name"]." = " . $properties[$i]["value"] . "</tt><br>";
+ $msg->header->{$properties[$i]['name']} = $properties[$i]['value'];
}
}
// This gets properties in a nested parenthesisized list. For example,
// this would get passed something like: ("attachment" ("filename" "luke.tar.gz"))
// This returns an array called $props with all paired up properties.
- // It ignores the "attachment" for now, maybe that should change later
+ // It ignores the "attachment" for now, maybe that should change later
// down the road. In this case, what is returned is:
// $props[0]["name"] = "filename";
// $props[0]["value"] = "luke.tar.gz";
function mime_get_props ($props, $structure) {
- global $debug_mime;
+
while (strlen($structure) > 0) {
$structure = trim($structure);
- $char = substr($structure, 0, 1);
+ $char = $structure{0};
- if ($char == "\"") {
+ if ($char == '"') {
$pos = 1;
- $char = substr($structure, $pos, 1);
- $tmp = "";
- while ($char != "\"" && $pos < strlen($structure)) {
+ $tmp = '';
+ while ( ( $char = $structure{$pos} ) != '"' &&
+ $pos < strlen($structure)) {
$tmp .= $char;
$pos++;
- $char = substr($structure, $pos, 1);
- }
+ }
$structure = trim(substr($structure, strlen($tmp) + 2));
- $char = substr($structure, 0, 1);
+ $char = $structure{0};
- if ($char == "\"") {
+ if ($char == '"') {
$pos = 1;
- $char = substr($structure, $pos, 1);
- $value = "";
- while ($char != "\"" && $pos < strlen($structure)) {
+ $value = '';
+ while ( ( $char = $structure{$pos} ) != '"' &&
+ $pos < strlen($structure) ) {
$value .= $char;
$pos++;
- $char = substr($structure, $pos, 1);
- }
+ }
$structure = trim(substr($structure, strlen($tmp) + 2));
-
+
$k = count($props);
- $props[$k]["name"] = strtolower($tmp);
- $props[$k]["value"] = $value;
- } else if ($char == "(") {
+ $props[$k]['name'] = strtolower($tmp);
+ $props[$k]['value'] = $value;
+ } else if ($char == '(') {
$end = mime_match_parenthesis (0, $structure);
$sub = substr($structure, 1, $end-1);
- if (! isset($props))
- $props = array();
+ if (! isset($props))
+ $props = array();
$props = mime_get_props($props, $sub);
$structure = substr($structure, strlen($sub) + 2);
}
return $props;
- } else if ($char == "(") {
+ } else if ($char == '(') {
$end = mime_match_parenthesis (0, $structure);
$sub = substr($structure, 1, $end-1);
$props = mime_get_props($props, $sub);
// x x
// then this would return 42 to match up those two.
function mime_match_parenthesis ($pos, $structure) {
- $char = substr($structure, $pos, 1);
+
+ $j = strlen( $structure );
// ignore all extra characters
// If inside of a string, skip string -- Boundary IDs and other
// things can have ) in them.
- while ($pos < strlen($structure)) {
+ if( $structure{$pos} != '(' )
+ return( $j );
+
+ while( $pos < $j ) {
$pos++;
- $char = substr($structure, $pos, 1);
- if ($char == ")") {
+ if ($structure{$pos} == ')') {
return $pos;
- } else if ($char == '"') {
- $pos ++;
- while (substr($structure, $pos, 1) != '"' &&
- $pos < strlen($structure)) {
- $pos ++;
+ } elseif ($structure{$pos} == '"') {
+ $pos++;
+ while( $structure{$pos} != '"' &&
+ $pos < $j ) {
+ if (substr($structure, $pos, 2) == '\\"')
+ $pos++;
+ elseif (substr($structure, $pos, 2) == '\\\\')
+ $pos++;
+ $pos++;
}
- } else if ($char == "(") {
+ } elseif ( $structure{$pos} == '(' ) {
$pos = mime_match_parenthesis ($pos, $structure);
}
}
+ echo "Error decoding mime structure. Report this as a bug!<br>\n";
+ return( $pos );
}
- function mime_fetch_body ($imap_stream, $id, $ent_id) {
- // do a bit of error correction. If we couldn't find the entity id, just guess
- // that it is the first one. That is usually the case anyway.
- if (!$ent_id) $ent_id = 1;
+ function mime_fetch_body ($imap_stream, $id, $ent_id ) {
+ // do a bit of error correction. If we couldn't find the entity id, just guess
+ // that it is the first one. That is usually the case anyway.
+ if (!$ent_id)
+ $ent_id = 1;
+ $sid = sqimap_session_id();
+ fputs ($imap_stream, "$sid FETCH $id BODY[$ent_id]\r\n");
+ $data = sqimap_read_data ($imap_stream, $sid, true, $response, $message);
+ $topline = array_shift($data);
+ while (! ereg('\\* [0-9]+ FETCH ', $topline) && $data)
+ $topline = array_shift($data);
+ $wholemessage = implode('', $data);
+ if (ereg('\\{([^\\}]*)\\}', $topline, $regs)) {
+ $ret = substr( $wholemessage, 0, $regs[1] );
+ /*
+ There is some information in the content info header that could be important
+ in order to parse html messages. Let's get them here.
+ */
+ if( $ret{0} == '<' ) {
+ fputs ($imap_stream, "$sid FETCH $id BODY[$ent_id.MIME]\r\n");
+ $data = sqimap_read_data ($imap_stream, $sid, true, $response, $message);
+ $base = '';
+ $k = 10;
+ foreach( $data as $d ) {
+ if( substr( $d, 0, 13 ) == 'Content-Base:' ) {
+ $j = strlen( $d );
+ $i = 13;
+ $base = '';
+ while( $i < $j &&
+ ( !isNoSep( $d{$i} ) || $d{$i} == '"' ) )
+ $i++;
+ while( $i < $j ) {
+ if( isNoSep( $d{$i} ) )
+ $base .= $d{$i};
+ $i++;
+ }
+ $k = 0;
+ } elseif( $k == 1 && !isnosep( $d{0} ) ) {
+ $base .= substr( $d, 1 );
+ }
+ $k++;
+ }
+ if( $base <> '' )
+ $ret = "<base href=\"$base\">" . $ret;
+ }
+ } else if (ereg('"([^"]*)"', $topline, $regs)) {
+ $ret = $regs[1];
+ } else {
+ global $where, $what, $mailbox, $passed_id, $startMessage;
+ $par = "mailbox=".urlencode($mailbox)."&passed_id=$passed_id";
+ if (isset($where) && isset($what)) {
+ $par .= "&where=".urlencode($where)."&what=".urlencode($what);
+ } else {
+ $par .= "&startMessage=$startMessage&show_more=0";
+ }
+ $par .= '&response='.urlencode($response).'&message='.urlencode($message).
+ '&topline='.urlencode($topline);
- fputs ($imap_stream, "a010 FETCH $id BODY[$ent_id]\r\n");
- $data = sqimap_read_data ($imap_stream, 'a010', true, $response, $message);
- $topline = array_shift($data);
- while (! ereg('\\* [0-9]+ FETCH ', $topline) && data)
- $topline = array_shift($data);
- $wholemessage = implode('', $data);
+ echo '<b><font color=$color[2]>Body retrieval error. The reason for this is most probably that<BR> ' .
+ 'the message is malformed. Please help us making future versions<BR> ' .
+ "better by submitting this message to the developers knowledgebase!<BR>\n" .
+ "<A HREF=\"../src/retrievalerror.php?$par\">Submit message</A><BR>" .
- if (ereg('\\{([^\\}]*)\\}', $topline, $regs)) {
- return substr($wholemessage, 0, $regs[1]);
- }
- else if (ereg('"([^"]*)"', $topline, $regs)) {
- return $regs[1];
- }
-
- $str = "Body retrival error. Please report this bug!\n";
- $str .= "Response: $response\n";
- $str .= "Message: $message\n";
- $str .= "FETCH line: $topline";
- $str .= "---------------\n$wholemessage";
- foreach ($data as $d)
- {
- $str .= htmlspecialchars($d) . "\n";
- }
- return $str;
-
- return "Body retrival error, please report this bug!\n\nTop line is \"$topline\"\n";
- }
+ "<tt>Response: $response<BR>" .
+ "Message: $message<BR>" .
+ "FETCH line: $topline<BR></tt></font></b>";
+
+ fputs ($imap_stream, "$sid FETCH $passed_id BODY[]\r\n");
+ $data = sqimap_read_data ($imap_stream, $sid, true, $response, $message);
+ array_shift($data);
+ $wholemessage = implode('', $data);
+
+ $ret = "---------------\n$wholemessage";
+
+ }
+ return( $ret );
+ }
function mime_print_body_lines ($imap_stream, $id, $ent_id, $encoding) {
// do a bit of error correction. If we couldn't find the entity id, just guess
// that it is the first one. That is usually the case anyway.
if (!$ent_id) $ent_id = 1;
-
- fputs ($imap_stream, "a001 FETCH $id BODY[$ent_id]\r\n");
- $cnt = 0;
- $continue = true;
- $read = fgets ($imap_stream,4096);
- while (!ereg("^a001 (OK|BAD|NO)(.*)$", $read, $regs)) {
- if (trim($read) == ")==") {
- $read1 = $read;
- $read = fgets ($imap_stream,4096);
- if (ereg("^a001 (OK|BAD|NO)(.*)$", $read, $regs)) {
- return;
- } else {
- echo decodeBody($read1, $encoding);
- echo decodeBody($read, $encoding);
- }
- } else if ($cnt) {
- echo decodeBody($read, $encoding);
- }
- $read = fgets ($imap_stream,4096);
- $cnt++;
- }
+ $sid = sqimap_session_id();
+ // Don't kill the connection if the browser is over a dialup
+ // and it would take over 30 seconds to download it.
+ set_time_limit(0);
+
+ fputs ($imap_stream, "$sid FETCH $id BODY[$ent_id]\r\n");
+ $cnt = 0;
+ $continue = true;
+ $read = fgets ($imap_stream,4096);
+ // This could be bad -- if the section has sqimap_session_id() . ' OK'
+ // or similar, it will kill the download.
+ while (!ereg("^".$sid." (OK|BAD|NO)(.*)$", $read, $regs)) {
+ if (trim($read) == ')==') {
+ $read1 = $read;
+ $read = fgets ($imap_stream,4096);
+ if (ereg("^".$sid." (OK|BAD|NO)(.*)$", $read, $regs)) {
+ return;
+ } else {
+ echo decodeBody($read1, $encoding) .
+ decodeBody($read, $encoding);
+ }
+ } else if ($cnt) {
+ echo decodeBody($read, $encoding);
+ }
+ $read = fgets ($imap_stream,4096);
+ $cnt++;
+ }
}
/* -[ END MIME DECODING ]----------------------------------------------------------- */
// This is here for debugging purposese. It will print out a list
// of all the entity IDs that are in the $message object.
+ /*
function listEntities ($message) {
if ($message) {
if ($message->header->entity_id)
- echo "<tt>" . $message->header->entity_id . " : " . $message->header->type0 . "/" . $message->header->type1 . "<br>";
+ echo "<tt>" . $message->header->entity_id . ' : ' . $message->header->type0 . '/' . $message->header->type1 . '<br>';
for ($i = 0; $message->entities[$i]; $i++) {
$msg = listEntities($message->entities[$i], $ent_id);
if ($msg)
}
}
}
+ */
// returns a $message object for a particular entity id
function getEntity ($message, $ent_id) {
if ($msg)
return $msg;
}
- }
+ }
}
}
- // figures out what entity to display and returns the $message object
- // for that entity.
- function findDisplayEntity ($message) {
- if ($message) {
- if ($message->header->type0 == "text") {
- if ($message->header->type1 == "plain" ||
- $message->header->type1 == "html") {
- if (isset($message->header->entity_id))
- return $message->header->entity_id;
- return 0;
+ // figures out what entity to display and returns the $message object
+ // for that entity.
+ function findDisplayEntity ($message, $textOnly = 1) {
+ global $show_html_default;
+
+ $entity = 0;
+
+ if ($message) {
+ if ( $message->header->type0 == 'multipart' &&
+ ( $message->header->type1 == 'alternative' ||
+ $message->header->type1 == 'related' ) &&
+ $show_html_default && ! $textOnly ) {
+ $entity = findDisplayEntityHTML($message);
}
- } else {
- for ($i=0; $message->entities[$i]; $i++) {
- return findDisplayEntity($message->entities[$i]);
- }
- }
+
+ // Show text/plain or text/html -- the first one we find.
+ if ( $entity == 0 &&
+ $message->header->type0 == 'text' &&
+ ( $message->header->type1 == 'plain' ||
+ $message->header->type1 == 'html' ) &&
+ isset($message->header->entity_id) ) {
+ $entity = $message->header->entity_id;
+ }
+
+ $i = 0;
+ while ($entity == 0 && isset($message->entities[$i]) ) {
+ $entity = findDisplayEntity($message->entities[$i], $textOnly);
+ $i++;
+ }
+ }
+
+ return( $entity );
+ }
+
+ // Shows the HTML version
+ function findDisplayEntityHTML ($message) {
+ if ($message->header->type0 == 'text' &&
+ $message->header->type1 == 'html' &&
+ isset($message->header->entity_id))
+ return $message->header->entity_id;
+ for ($i = 0; isset($message->entities[$i]); $i ++) {
+ $entity = findDisplayEntityHTML($message->entities[$i]);
+ if ($entity != 0)
+ return $entity;
}
+ return 0;
}
/** This returns a parsed string called $body. That string can then
// this if statement checks for the entity to show as the
// primary message. To add more of them, just put them in the
// order that is their priority.
- global $startMessage, $username, $key, $imapServerAddress, $imapPort;
+ global $startMessage, $username, $key, $imapServerAddress, $imapPort,
+ $show_html_default;
$id = $message->header->id;
$urlmailbox = urlencode($message->header->mailbox);
// Get the right entity and redefine message to be this entity
- $ent_num = findDisplayEntity ($message);
+ // Pass the 0 to mean that we want the 'best' viewable one
+ $ent_num = findDisplayEntity ($message, 0);
$body_message = getEntity($message, $ent_num);
- if (($body_message->header->type0 == "text") ||
- ($body_message->header->type0 == "rfc822")) {
-
- $body = mime_fetch_body ($imap_stream, $id, $ent_num);
+ if (($body_message->header->type0 == 'text') ||
+ ($body_message->header->type0 == 'rfc822')) {
+
+ $body = mime_fetch_body ($imap_stream, $id, $ent_num);
$body = decodeBody($body, $body_message->header->encoding);
-
+ $hookResults = do_hook("message_body", $body);
+ $body = $hookResults[1];
+
// If there are other types that shouldn't be formatted, add
- // them here
- if ($body_message->header->type1 != "html") {
+ // them here
+ if ($body_message->header->type1 == 'html') {
+ if( $show_html_default <> 1 ) {
+ $body = strip_tags( $body );
+ translateText($body, $wrap_at, $body_message->header->charset);
+ } else {
+ $body = MagicHTML( $body, $id );
+ }
+ } else {
translateText($body, $wrap_at, $body_message->header->charset);
- }
-
- $body .= "<SMALL><CENTER><A HREF=\"../src/download.php?absolute_dl=true&passed_id=$id&passed_ent_id=$ent_num&mailbox=$urlmailbox\">". _("Download this as a file") ."</A></CENTER><BR></SMALL>";
-
+ }
+
+ $body .= "<SMALL><CENTER><A HREF=\"../src/download.php?absolute_dl=true&passed_id=$id&passed_ent_id=$ent_num&mailbox=$urlmailbox&showHeaders=1\">". _("Download this as a file") ."</A></CENTER><BR></SMALL>";
+
/** Display the ATTACHMENTS: message if there's more than one part **/
$body .= "</TD></TR></TABLE>";
if (isset($message->entities[0])) {
$body .= formatAttachments ($message, $ent_num, $message->header->mailbox, $id);
}
+ $body .= "</TD></TR></TABLE>";
} else {
- $body .= formatAttachments ($message, -1, $message->header->mailbox, $id);
+ $body = formatAttachments ($message, -1, $message->header->mailbox, $id);
}
- return $body;
+ return( $body );
}
// A recursive function that returns a list of attachments with links
global $where, $what;
global $startMessage, $color;
static $ShownHTML = 0;
-
- $body = "";
- if ($ShownHTML == 0)
- {
+
+ $body = "";
+ if ($ShownHTML == 0) {
$ShownHTML = 1;
-
- $body .= "<TABLE WIDTH=100% CELLSPACING=0 CELLPADDING=2 BORDER=0 BGCOLOR=\"$color[0]\"><TR>\n";
- $body .= "<TH ALIGN=\"left\" BGCOLOR=\"$color[9]\"><B>\n";
- $body .= _("Attachments") . ':';
- $body .= "</B></TH></TR><TR><TD>\n";
-
- $body .= "<TABLE CELLSPACING=0 CELLPADDING=1 BORDER=0>\n";
-
- $body .= formatAttachments ($message, $ent_id, $mailbox, $id);
-
- $body .= "</TABLE></TD></TR></TABLE>";
-
- return $body;
+
+ $body .= "<TABLE WIDTH=100% CELLSPACING=0 CELLPADDING=2 BORDER=0 BGCOLOR=\"$color[0]\"><TR>\n" .
+ "<TH ALIGN=\"left\" BGCOLOR=\"$color[9]\"><B>\n" .
+ _("Attachments") . ':' .
+ "</B></TH></TR><TR><TD>\n" .
+ "<TABLE CELLSPACING=0 CELLPADDING=1 BORDER=0>\n" .
+ formatAttachments ($message, $ent_id, $mailbox, $id) .
+ "</TABLE></TD></TR></TABLE>";
+
+ return( $body );
}
-
+
if ($message) {
if (!$message->entities) {
$type0 = strtolower($message->header->type0);
$type1 = strtolower($message->header->type1);
-
+ $name = decodeHeader($message->header->name);
+
if ($message->header->entity_id != $ent_id) {
$filename = decodeHeader($message->header->filename);
- if (trim($filename) == "") {
- $display_filename = "untitled-".$message->header->entity_id;
+ if (trim($filename) == '') {
+ if (trim($name) == '') {
+ if( trim( $message->header->id ) == '' )
+ $display_filename = 'untitled-[' . $message->header->entity_id . ']' ;
+ else
+ $display_filename = 'cid: ' . $message->header->id;
+ // $display_filename = 'untitled-[' . $message->header->entity_id . ']' ;
+ } else {
+ $display_filename = $name;
+ $filename = $name;
+ }
} else {
$display_filename = $filename;
}
-
+
$urlMailbox = urlencode($mailbox);
$ent = urlencode($message->header->entity_id);
-
- $DefaultLink =
+
+ $DefaultLink =
"../src/download.php?startMessage=$startMessage&passed_id=$id&mailbox=$urlMailbox&passed_ent_id=$ent";
if ($where && $what)
$DefaultLink .= '&where=' . urlencode($where) . '&what=' . urlencode($what);
$Links['download link']['text'] = _("download");
- $Links['download link']['href'] =
+ $Links['download link']['href'] =
"../src/download.php?absolute_dl=true&passed_id=$id&mailbox=$urlMailbox&passed_ent_id=$ent";
$ImageURL = '';
-
+
$HookResults = do_hook("attachment $type0/$type1", $Links,
- $startMessage, $id, $urlMailbox, $ent, $DefaultLink,
+ $startMessage, $id, $urlMailbox, $ent, $DefaultLink,
$display_filename, $where, $what);
$Links = $HookResults[1];
$DefaultLink = $HookResults[6];
- $body .= '<TR><TD> </TD><TD>';
- $body .= "<A HREF=\"$DefaultLink\">$display_filename</A> </TD>";
- $body .= '<TD><SMALL><b>' . show_readable_size($message->header->size) .
- '</b> </small></TD>';
- $body .= "<TD><SMALL>[ $type0/$type1 ] </SMALL></TD>";
- $body .= '<TD><SMALL>';
+ $body .= '<TR><TD> </TD><TD>' .
+ "<A HREF=\"$DefaultLink\">$display_filename</A> </TD>" .
+ '<TD><SMALL><b>' . show_readable_size($message->header->size) .
+ '</b> </small></TD>' .
+ "<TD><SMALL>[ $type0/$type1 ] </SMALL></TD>" .
+ '<TD><SMALL>';
if ($message->header->description)
$body .= '<b>' . htmlspecialchars($message->header->description) . '</b>';
$body .= '</SMALL></TD><TD><SMALL> ';
-
-
+
+
$SkipSpaces = 1;
- foreach ($Links as $Val)
- {
- if ($SkipSpaces)
- {
+ foreach ($Links as $Val) {
+ if ($SkipSpaces) {
$SkipSpaces = 0;
- }
- else
- {
+ } else {
$body .= ' | ';
}
$body .= '<a href="' . $Val['href'] . '">' . $Val['text'] . '</a>';
}
-
+
unset($Links);
-
+
$body .= "</SMALL></TD></TR>\n";
}
- return $body;
} else {
for ($i = 0; $i < count($message->entities); $i++) {
$body .= formatAttachments ($message->entities[$i], $ent_id, $mailbox, $id);
}
- return $body;
}
+ return( $body );
}
}
$body = str_replace("\r\n", "\n", $body);
$encoding = strtolower($encoding);
- if ($encoding == "quoted-printable") {
- $body = quoted_printable_decode($body);
+ global $show_html_default;
+ if ($encoding == 'quoted-printable') {
+ $body = quoted_printable_decode($body);
+
+
+ /*
+ Following code has been comented as I see no reason for it.
+ If there is any please tell me a mingo@rotedic.com
+
while (ereg("=\n", $body))
$body = ereg_replace ("=\n", "", $body);
- } else if ($encoding == "base64") {
+ */
+ } else if ($encoding == 'base64') {
$body = base64_decode($body);
}
}
- // This functions decode strings that is encoded according to
+ // This functions decode strings that is encoded according to
// RFC1522 (MIME Part Two: Message Header Extensions for Non-ASCII Text).
function decodeHeader ($string) {
- if (eregi('=\\?([^?]+)\\?(q|b)\\?([^?]+)\\?=',
+ if (eregi('=\\?([^?]+)\\?(q|b)\\?([^?]+)\\?=',
$string, $res)) {
if (ucfirst($res[2]) == "B") {
$replace = base64_decode($res[3]);
} else {
$replace = ereg_replace("_", " ", $res[3]);
- // Convert lowercase Quoted Printable to uppercase for
- // quoted_printable_decode to understand it.
- while (ereg("(=([0-9][abcdef])|([abcdef][0-9])|([abcdef][abcdef]))", $replace, $res)) {
- $replace = str_replace($res[1], strtoupper($res[1]), $replace);
- }
+ // Convert lowercase Quoted Printable to uppercase for
+ // quoted_printable_decode to understand it.
+ while (ereg("(=(([0-9][abcdef])|([abcdef][0-9])|([abcdef][abcdef])))", $replace, $res)) {
+ $replace = str_replace($res[1], strtoupper($res[1]), $replace);
+ }
$replace = quoted_printable_decode($replace);
}
$replace = charset_decode ($res[1], $replace);
- $string = eregi_replace
- ('=\\?([^?]+)\\?(q|b)\\?([^?]+)\\?=',
+ // Remove the name of the character set.
+ $string = eregi_replace ('=\\?([^?]+)\\?(q|b)\\?([^?]+)\\?=',
$replace, $string);
+
// In case there should be more encoding in the string: recurse
return (decodeHeader($string));
- } else
+ } else
return ($string);
}
function encodeHeader ($string) {
global $default_charset;
- // Encode only if the string contains 8-bit characters or =?
- if (ereg("([\200-\377]|=\\?)", $string)) {
- $newstring = "=?$default_charset?Q?";
-
- // First the special characters
- $string = str_replace("=", "=3D", $string);
- $string = str_replace("?", "=3F", $string);
- $string = str_replace("_", "=5F", $string);
- $string = str_replace(" ", "_", $string);
-
- for ( $ch = 127 ; $ch <= 255 ; $ch++ ) {
- $replace = chr($ch);
- $insert = sprintf("=%02X", $ch);
- $string = str_replace($replace, $insert, $string);
- $ch++;
- }
+ // Encode only if the string contains 8-bit characters or =?
+ $j = strlen( $string );
+ $l = FALSE; // Must be encoded ?
+ $ret = '';
+ for( $i=0; $i < $j; ++$i) {
+ switch( $string{$i} ) {
+ case '=':
+ $ret .= '=3D';
+ break;
+ case '?':
+ $l = TRUE;
+ $ret .= '=3F';
+ break;
+ case '_':
+ $ret .= '=5F';
+ break;
+ case ' ':
+ $ret .= '_';
+ break;
+ default:
+ $k = ord( $string{$i} );
+ if( $k > 126 ) {
+ $ret .= sprintf("=%02X", $k);
+ $l = TRUE;
+ } else
+ $ret .= $string{$i};
+ }
+ }
- $newstring = "=?$default_charset?Q?".$string."?=";
-
- return $newstring;
- }
+ if( $l )
+ $string = "=?$default_charset?Q?$ret?=";
+
+ return( $string );
+ }
+
+ /*
+ Strips dangerous tags from html messages.
+ */
+
+ function MagicHTML( $body, $id ) {
+
+ global $message, $PHP_SELF, $HTTP_SERVER_VARS;
+
+ $j = strlen( $body ); // Legnth of the HTML
+ $ret = ''; // Returned string
+ $bgcolor = '#ffffff'; // Background style color (defaults to white)
+ $textcolor = '#000000'; // Foreground style color (defaults to black)
+ $leftmargin = ''; // Left margin style
+ $title = ''; // HTML title if any
+
+ $i = 0;
+ while( $i < $j ) {
+ if( $body{$i} == '<' ) {
+ $pos = $i + 1;
+ $tag = '';
+ while ($body{$pos} == ' ' || $body{$pos} == "\t" ||
+ $body{$pos} == "\n")
+ $pos ++;
+ while (strlen($tag) < 4 && $body{$pos} != ' ' &&
+ $body{$pos} != "\t" && $body{$pos} != "\n") {
+ $tag .= $body{$pos};
+ $pos ++;
+ }
+ switch( strtoupper( $tag ) ) {
+ // Strips the entire tag and contents
+ case 'APPL':
+ case 'EMBB':
+ case 'FRAM':
+ case 'SCRI':
+ case 'OBJE':
+ $etg = '/' . $tag;
+ while( $body{$i+1}.$body{$i+2}.$body{$i+3}.$body{$i+4}.$body{$i+5} <> $etg &&
+ $i < $j ) $i++;
+ while( $i < $j && $body{++$i} <> '>' );
+ // $ret .= "<!-- $tag removed -->";
+ break;
+ // Substitute Title
+ case 'TITL':
+ $i += 5;
+ while( $body{$i} <> '>' && // </title>
+ $i < $j )
+ $i++;
+ $i++;
+ $title = '';
+ while( $body{$i} <> '<' && // </title>
+ $i < $j ) {
+ $title .= $body{$i};
+ $i++;
+ }
+ $i += 7;
+ break;
+ // Destroy these tags
+ case 'HTML':
+ case 'HEAD':
+ case '/HTM':
+ case '/HEA':
+ case '!DOC':
+ case 'META':
+ case 'DIV ':
+ case '/DIV':
+ case '!-- ':
+ $i += 4;
+ while( $body{$i} <> '>' &&
+ $i < $j )
+ $i++;
+ // $i++;
+ break;
+ case 'STYL':
+ $i += 5;
+ while( $body{$i} <> '>' && // </title>
+ $i < $j )
+ $i++;
+ $i++;
+ // We parse the style to look for interesting stuff
+ $styleblk = '';
+ while( $body{$i} <> '>' &&
+ $i < $j ) {
+ // First we get the name of the style
+ $style = '';
+ while( $body{$i} <> '>' &&
+ $body{$i} <> '<' &&
+ $body{$i} <> '{' &&
+ $i < $j ) {
+ if( isnoSep( $body{$i} ) )
+ $style .= $body{$i};
+ $i++;
+ }
+ stripComments( $i, $j, $body );
+ $style = strtoupper( trim( $style ) );
+ if( $style == 'BODY' ) {
+ // Next we look into the definitions of the body style
+ while( $body{$i} <> '>' &&
+ $body{$i} <> '}' &&
+ $i < $j ) {
+ // We look for the background color if any.
+ if( substr( $body, $i, 17 ) == 'BACKGROUND-COLOR:' ) {
+ $i += 17;
+ $bgcolor = getStyleData( $i, $j, $body );
+ } elseif ( substr( $body, $i, 12 ) == 'MARGIN-LEFT:' ) {
+ $i += 12;
+ $leftmargin = getStyleData( $i, $j, $body );
+ }
+ $i++;
+ }
+ } else {
+ // Other style are mantained
+ $styleblk .= "$style ";
+ while( $body{$i} <> '>' &&
+ $body{$i} <> '<' &&
+ $body{$i} <> '}' &&
+ $i < $j ) {
+ $styleblk .= $body{$i};
+ $i++;
+ }
+ $styleblk .= $body{$i};
+ }
+ stripComments( $i, $j, $body );
+ if( $body{$i} <> '>' )
+ $i++;
+ }
+ if( $styleblk <> '' )
+ $ret .= "<style>$styleblk";
+ break;
+ case 'BODY':
+ if( $title <> '' )
+ $ret .= '<b>' . _("Title:") . " </b>$title<br>\n";
+ $ret .= "<TABLE";
+ $i += 5;
+ if (! isset($base))
+ $base = '';
+ $ret .= stripEvent( $i, $j, $body, $id, $base );
+ $ret .= " bgcolor=$bgcolor width=100%><tr>";
+ if( $leftmargin <> '' )
+ $ret .= "<td width=$leftmargin> </td>";
+ $ret .= '<td>';
+ if (strtolower($bgcolor) == 'ffffff' ||
+ strtolower($bgcolor) == '#ffffff')
+ $ret .= '<font color=#000000>';
+ break;
+ case 'BASE':
+ $i += 5;
+ $base = '';
+ while( !isNoSep( $body{$i} ) &&
+ $i < $j )
+ $i++;
+ if( strcasecmp( substr( $base, 0, 4 ), 'href' ) ) {
+ $i += 5;
+ while( !isNoSep( $body{$i} ) &&
+ $i < $j )
+ $i++;
+ while( $body{$i} <> '>' &&
+ $i < $j ) {
+ if( $body{$i} <> '"' )
+ $base .= $body{$i};
+ $i++;
+ }
+ // Debuging $ret .= "<!-- base == $base -->";
+ if( strcasecmp( substr( $base, 0, 4 ), 'file' ) <> 0 )
+ $ret .= "\n<BASE HREF=\"$base\">\n";
+ }
+ break;
+ case '/BOD':
+ $ret .= '</font></td></tr></TABLE>';
+ $i += 6;
+ break;
+ default:
+ // Following tags can contain some event handler, lets search it
+ stripComments( $i, $j, $body );
+ if (! isset($base))
+ $base = '';
+ $ret .= stripEvent( $i, $j, $body, $id, $base ) . '>';
+ // $ret .= "<!-- $tag detected -->";
+ }
+ } else {
+ $ret .= $body{$i};
+ }
+ $i++;
+ }
+
+ return( "\n\n<!-- HTML Output ahead -->\n" .
+ $ret .
+ "\n<!-- END of HTML Output --><base href=\"".
+ $HTTP_SERVER_VARS["SERVER_NAME"] . substr( $PHP_SELF, 0, strlen( $PHP_SELF ) - 13 ) .
+ "\">\n\n" );
+ }
+
+ function isNoSep( $char ) {
+
+ switch( $char ) {
+ case ' ':
+ case "\n":
+ case "\t":
+ case "\r":
+ case '>':
+ case '"':
+ return( FALSE );
+ break;
+ default:
+ return( TRUE );
+ }
+
+ }
+
+ /*
+ The following function is usefull to remove extra data that can cause
+ html not to display properly. Especialy with MS stuff.
+ */
+
+ function stripComments( &$i, $j, &$body ) {
+
+ while( $body{$i}.$body{$i+1}.$body{$i+2}.$body{$i+3} == '<!--' &&
+ $i < $j ) {
+ $i += 5;
+ while( $body{$i-2}.$body{$i-1}.$body{$i} <> '-->' &&
+ $i < $j )
+ $i++;
+ $i++;
+ }
+
+ return;
- return $string;
}
+ /* Gets the style data of a specific style */
+
+ function getStyleData( &$i, $j, &$body ) {
+
+ // We skip spaces
+ while( $body{$i} <> '>' && !isNoSep( $body{$i} ) &&
+ $i < $j ) {
+ $i++;
+ }
+ // And get the color
+ $ret = '';
+ while( isNoSep( $body{$i} ) &&
+ $i < $j ) {
+ $ret .= $body{$i};
+ $i++;
+ }
+
+ return( $ret );
+ }
+
+ /*
+ Private function for strip_dangerous_tag. Look for event based coded and "remove" it
+ change on with no (onload -> noload)
+ */
+
+ function stripEvent( &$i, $j, &$body, $id, $base ) {
+
+ global $message;
+
+ $ret = '';
+
+ while( $body{$i} <> '>' &&
+ $i < $j ) {
+ $etg = strtolower($body{$i}.$body{$i+1}.$body{$i+2});
+ switch( $etg ) {
+ case '../':
+ // Retrolinks are not allowed without a base because they mess with SM security
+ if( $base == '' ) {
+ $i += 2;
+ } else {
+ $ret .= '.';
+ }
+ break;
+ case 'cid':
+ // Internal link
+ $k = $i-1;
+ if( $body{$i+3} == ':') {
+ $i +=4;
+ $name = '';
+ while( isNoSep( $body{$i} ) &&
+ $i < $j )
+ $name .= $body{$i++};
+ if( $name <> '' ) {
+ $ret .= "../src/download.php?absolute_dl=true&passed_id=$id&mailbox=" .
+ urlencode( $message->header->mailbox ) .
+ "&passed_ent_id=" . find_ent_id( $name, $message );
+ if( $body{$k} == '"' )
+ $ret .= '" ';
+ else
+ $ret .= ' ';
+ }
+ if( $body{$i} == '>' )
+ $i -= 1;
+ }
+ break;
+ case ' on':
+ case "\non":
+ case "\ron":
+ case "\ton":
+ $ret .= ' no';
+ $i += 2;
+ break;
+ case 'pt:':
+ if( strcasecmp( $body{$i-4}.$body{$i-3}.$body{$i-2}.$body{$i-1}.$body{$i}.$body{$i+1}.$body{$i+2}, 'script:') == 0 ) {
+ $ret .= '_no/';
+ } else {
+ $ret .= $etg;
+ }
+ $i += 2;
+ break;
+ default:
+ $ret .= $body{$i};
+ }
+ $i++;
+ }
+ return( $ret );
+ }
+
+
+ /* This function trys to locate the entity_id of a specific mime element */
+
+ function find_ent_id( $id, $message ) {
+
+ $ret = '';
+ for ($i=0; $ret == '' && $i < count($message->entities); $i++) {
+
+ if( $message->entities[$i]->header->entity_id == '' ) {
+ $ret = find_ent_id( $id, $message->entities[$i] );
+ } else {
+ if( strcasecmp( $message->entities[$i]->header->id, $id ) == 0 )
+ $ret = $message->entities[$i]->header->entity_id;
+ }
+
+ }
+
+ return( $ret );
+
+ }
?>