** This contains the functions necessary to detect and decode MIME
** messages.
**
+ ** $Id$
**/
+
+ if (defined('mime_php'))
+ return;
+ define('mime_php', true);
+ global $debug_mime;
$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";
-
+
+ include "../functions/imap.php";
/** Setting up the objects that have the structure for the message **/
/** msg_header contains generic variables for values that **/
/** could be in a header. **/
- var $type0, $type1, $boundary, $charset, $encoding;
- var $to, $from, $date, $cc, $bcc, $reply_to, $subject;
- var $id, $mailbox, $description;
- var $entity_id, $message_id;
+ 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, $name = '';
}
class message {
more objects of type message. See documentation in mime.txt for
a better description of how this works.
**/
- var $header;
- var $entities;
+ var $header = '';
+ var $entities = array();
function addEntity ($msg) {
- $this->entities[count($this->entities)] = $msg;
+ $this->entities[] = $msg;
}
}
$id = $header->id;
fputs ($imap_stream, "a001 FETCH $id BODYSTRUCTURE\r\n");
+ //
+ // This should use sqimap_read_data instead of reading it itself
+ //
$read = fgets ($imap_stream, 10000);
- $endline = fgets($imap_stream, 1024);
- $read = strtolower($read);
+ $response = substr($read, 0, 4);
+ $bodystructure = "";
+ while ($response != "a001") {
+ $bodystructure .= $read;
+ $read = fgets ($imap_stream, 10000);
+ $response = substr($read, 0, 4);
+ }
+ $read = $bodystructure;
- if ($debug_mime) echo "<tt>$read</tt><br><br>";
+ if ($debug_mime) echo "<tt>$read</tt><br><br>\n";
// isolate the body structure and remove beginning and end parenthesis
- $read = trim(substr ($read, strpos($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>$read</tt><br><br>";
+ if ($debug_mime) echo "<tt>$read</tt><br><br>\n";
- $msg = mime_parse_structure ($read);
+ $msg = mime_parse_structure ($read, 0);
$msg->header = $header;
return $msg;
}
// to mime_get_elements()
function mime_parse_structure ($structure, $ent_id) {
global $debug_mime;
- if ($debug_mime) echo "<font color=008800><tt>START: mime_parse_structure()</tt></font><br>";
+ if ($debug_mime) echo "<font color=008800><tt>START: mime_parse_structure()</tt></font><br>\n";
$msg = new message();
if (substr($structure, 0, 1) == "(") {
$ent_id = mime_new_element_level($ent_id);
} 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);
+ $msg = mime_get_element ($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>";
+ return $msg;
}
// Increments the element ID. An element id can look like any of
$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);
- if (substr($structure, 0, 3) == "nil") {
+ if (strtolower(substr($structure, 0, 3)) == "nil") {
$text = "";
$structure = substr($structure, 3);
} 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 .= $char;
$pos++;
// 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)) {
$text .= $char;
$pos++;
// This is where all the text parts get put into the header
switch ($elem_num) {
case 1:
- $msg->header->type0 = $text;
- if ($debug_mime) echo "<tt>type0 = $text</tt><br>";
+ $msg->header->type0 = strtolower($text);
+ if ($debug_mime) echo "<tt>type0 = ".strtolower($text)."</tt><br>";
break;
case 2:
- $msg->header->type1 = $text;
- if ($debug_mime) echo "<tt>type1 = $text</tt><br>";
+ $msg->header->type1 = strtolower($text);
+ if ($debug_mime) echo "<tt>type1 = ".strtolower($text)."</tt><br>";
break;
case 5:
$msg->header->description = $text;
if ($debug_mime) echo "<tt>description = $text</tt><br>";
break;
case 6:
- $msg->header->encoding = $text;
- if ($debug_mime) echo "<tt>encoding = $text</tt><br>";
+ $msg->header->encoding = strtolower($text);
+ if ($debug_mime) echo "<tt>encoding = ".strtolower($text)."</tt><br>";
break;
case 7:
$msg->header->size = $text;
if ($debug_mime) echo "<tt>".$properties[$i]["name"]." = " . $properties[$i]["value"] . "</tt><br>";
}
}
+
return $msg;
}
if ($char == "\"") {
$pos = 1;
$char = substr($structure, $pos, 1);
+ $tmp = "";
while ($char != "\"" && $pos < strlen($structure)) {
$tmp .= $char;
$pos++;
if ($char == "\"") {
$pos = 1;
$char = substr($structure, $pos, 1);
+ $value = "";
while ($char != "\"" && $pos < strlen($structure)) {
$value .= $char;
$pos++;
$structure = trim(substr($structure, strlen($tmp) + 2));
$k = count($props);
- $props[$k]["name"] = $tmp;
+ $props[$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();
$props = mime_get_props($props, $sub);
$structure = substr($structure, strlen($sub) + 2);
}
$char = substr($structure, $pos, 1);
// ignore all extra characters
+ // If inside of a string, skip string -- Boundary IDs and other
+ // things can have ) in them.
+ if ($char != '(')
+ return strlen($structure);
while ($pos < strlen($structure)) {
$pos++;
$char = substr($structure, $pos, 1);
if ($char == ")") {
return $pos;
+ } else if ($char == '"') {
+ $pos ++;
+ while (substr($structure, $pos, 1) != '"' &&
+ $pos < strlen($structure)) {
+ if (substr($structure, $pos, 2) == '\\"')
+ $pos ++;
+ elseif (substr($structure, $pos, 2) == '\\\\')
+ $pos ++;
+ $pos ++;
+ }
} else if ($char == "(") {
$pos = mime_match_parenthesis ($pos, $structure);
}
}
+ echo "Error decoding mime structure. Report this as a bug!<br>\n";
+ return $pos;
}
function mime_fetch_body ($imap_stream, $id, $ent_id) {
// that it is the first one. That is usually the case anyway.
if (!$ent_id) $ent_id = 1;
+ fputs ($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);
+
+ 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 $str;
+ }
+
+ function mime_print_body_lines ($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) $ent_id = 1;
+
+ // Don't kill the connection if the browser is over a dialup
+ // and it would take over 30 seconds to download it.
+ set_time_limit(0);
+
fputs ($imap_stream, "a001 FETCH $id BODY[$ent_id]\r\n");
- $topline = fgets ($imap_stream, 1024);
- $size = substr ($topline, strpos($topline, "{")+1);
- $size = substr ($size, 0, strpos($size, "}"));
- $read = fread ($imap_stream, $size);
- return $read;
+ $cnt = 0;
+ $continue = true;
+ $read = fgets ($imap_stream,4096);
+ // This could be bad -- if the section has 'a001 OK'
+ // or similar, it will kill the download.
+ 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);
+ $cnt++;
+ }
}
/* -[ END MIME DECODING ]----------------------------------------------------------- */
/** This is the first function called. It decides if this is a multipart
message or if it should be handled as a single entity
**/
- function decodeMime ($imap_stream, $body, $header) {
+ function decodeMime ($imap_stream, &$header) {
global $username, $key, $imapServerAddress, $imapPort;
return mime_structure ($imap_stream, $header);
}
if ($message->header->entity_id == $ent_id && strlen($ent_id) == strlen($message->header->entity_id)) {
return $message;
} else {
- for ($i = 0; $message->entities[$i]; $i++) {
+ for ($i = 0; isset($message->entities[$i]); $i++) {
$msg = getEntity ($message->entities[$i], $ent_id);
if ($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") {
- return $message->header->entity_id;
- }
- } else {
- for ($i=0; $message->entities[$i]; $i++) {
- return findDisplayEntity($message->entities[$i]);
- }
- }
+ function findDisplayEntity ($message, $textOnly = 1)
+ {
+ global $show_html_default;
+
+ if (! $message)
+ return 0;
+
+ if ($message->header->type0 == "multipart" &&
+ $message->header->type1 == "alternative" &&
+ $show_html_default && ! $textOnly) {
+ $entity = findDisplayEntityHTML($message);
+ if ($entity != 0)
+ return $entity;
}
+
+ // Show text/plain or text/html -- the first one we find.
+ if ($message->header->type0 == 'text' &&
+ ($message->header->type1 == 'plain' ||
+ $message->header->type1 == 'html') &&
+ isset($message->header->entity_id))
+ return $message->header->entity_id;
+
+ for ($i=0; isset($message->entities[$i]); $i++) {
+ $entity = findDisplayEntity($message->entities[$i], $textOnly);
+ if ($entity != 0)
+ return $entity;
+ }
+
+ return 0;
+ }
+
+ // Shows the HTML version
+ function findDisplayEntityHTML ($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 $username, $key, $imapServerAddress, $imapPort;
+ global $startMessage, $username, $key, $imapServerAddress, $imapPort;
$id = $message->header->id;
$urlmailbox = urlencode($message->header->mailbox);
- $ent_num = findDisplayEntity ($message);
- $body = mime_fetch_body ($imap_stream, $id, $ent_num);
-
- // If there are other types that shouldn't be formatted, add
- // them here
- if ($message->header->type1 != "html") {
- $body = translateText($body, $wrap_at, $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>";
-
- /** Display the ATTACHMENTS: message if there's more than one part **/
- if ($message->entities) {
- $body .= "<TABLE WIDTH=100% CELLSPACING=0 CELLPADDING=4 BORDER=0><TR><TD BGCOLOR=\"$color[0]\">";
- $body .= "<TT><B>ATTACHMENTS:</B></TT>";
- $body .= "</TD></TR><TR><TD BGCOLOR=\"$color[0]\">";
- $num = 0;
-
- /** make this recurisve at some point **/
- $body .= formatAttachments ($message, $ent_num, $message->header->mailbox, $id);
+ // Get the right entity and redefine message to be this entity
+ // 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);
+ $body = decodeBody($body, $body_message->header->encoding);
+
+ // If there are other types that shouldn't be formatted, add
+ // them here
+ if ($body_message->header->type1 != "html") {
+ 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&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);
}
return $body;
}
// A recursive function that returns a list of attachments with links
// to where to download these attachments
function formatAttachments ($message, $ent_id, $mailbox, $id) {
+ global $where, $what;
+ global $startMessage, $color;
+ static $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 $body;
+ }
+
if ($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 = $message->header->filename;
+ $filename = decodeHeader($message->header->filename);
if (trim($filename) == "") {
- $display_filename = "untitled-".$message->header->entity_id;
+ if (trim($name) == "") {
+ $display_filename = "untitled-".$message->header->entity_id;
+ } else {
+ $display_filename = $name;
+ $filename = $name;
+ }
} else {
$display_filename = $filename;
}
$urlMailbox = urlencode($mailbox);
$ent = urlencode($message->header->entity_id);
- $body .= "<TT> <A HREF=\"../src/download.php?passed_id=$id&mailbox=$urlMailbox&passed_ent_id=$ent\">" . $display_filename . "</A> (TYPE: $type0/$type1)";
+
+ $DefaultLink =
+ "../src/download.php?startMessage=$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");
+ $Links['download link']['href'] =
+ "../src/download.php?absolute_dl=true&passed_id=$id&mailbox=$urlMailbox&passed_ent_id=$ent";
+ $ImageURL = '';
+
+ $HookResults = do_hook("attachment $type0/$type1", $Links,
+ $startMessage, $id, $urlMailbox, $ent, $DefaultLink,
+ $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>";
+ $body .= '<TD><SMALL>';
if ($message->header->description)
- $body .= " <b>" . htmlspecialchars($message->header->description)."</b>";
- if ($message->header->type0 == "image" &&
- ($message->header->type1 == "jpg" ||
- $message->header->type1 == "jpeg" ||
- $message->header->type1 == "gif" ||
- $message->header->type1 == "png"))
- $body .= " (<a href=\"../src/download.php?passed_id=$id&mailbox=$urlMailbox&passed_ent_id=$ent&view=true\">"._("view")."</a>)\n";
- $body .= "</TT><BR>";
- $num++;
+ $body .= '<b>' . htmlspecialchars($message->header->description) . '</b>';
+ $body .= '</SMALL></TD><TD><SMALL> ';
+
+
+ $SkipSpaces = 1;
+ foreach ($Links as $Val)
+ {
+ if ($SkipSpaces)
+ {
+ $SkipSpaces = 0;
+ }
+ else
+ {
+ $body .= ' | ';
+ }
+ $body .= '<a href="' . $Val['href'] . '">' . $Val['text'] . '</a>';
+ }
+
+ unset($Links);
+
+ $body .= "</SMALL></TD></TR>\n";
}
return $body;
} else {
/** this function decodes the body depending on the encoding type. **/
function decodeBody($body, $encoding) {
+ $body = str_replace("\r\n", "\n", $body);
$encoding = strtolower($encoding);
+ global $show_html_default;
+
if ($encoding == "quoted-printable") {
$body = quoted_printable_decode($body);
$body = base64_decode($body);
}
+ if (!$show_html_default) {
+ $body = str_replace('<', '<', $body);
+// $body = str_replace('>', '>', $body);
+// Both this and $body = htmlspecialchars($body); mess up inline
+// quoting :-( Anyway, just replacing < gets the job done.
+ }
+
// All other encodings are returned raw.
return $body;
}
// This functions decode strings that is encoded according to
// RFC1522 (MIME Part Two: Message Header Extensions for Non-ASCII Text).
function decodeHeader ($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);
+ }
$replace = quoted_printable_decode($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
// be encoded.
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);
-
-
- while (ereg("([\200-\377])", $string, $regs)) {
- $replace = $regs[1];
- $insert = "=" . strtoupper(bin2hex($replace));
- $string = str_replace($replace, $insert, $string);
- }
-
- $newstring = "=?$default_charset?Q?".$string."?=";
-
- return $newstring;
- }
-
- return $string;
- }
+
+ // 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};
+ }
+ }
+
+ if( $l )
+ $string = "=?$default_charset?Q?$ret?=";
+
+ return( $string );
+ }
?>
projects / squirrelmail.git / blobdiff