/**
* mime.php
*
- * Copyright (c) 1999-2003 The SquirrelMail Project Team
+ * Copyright (c) 1999-2004 The SquirrelMail Project Team
* Licensed under the GNU GPL. For full terms see the file COPYING.
*
* This contains the functions necessary to detect and decode MIME
/**
* Get the MIME structure
- *
+ *
* 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_fetch_body($imap_stream, $id, $ent_id=1, $fetch_size=0) {
- global $uid_support;
/* Do a bit of error correction. If we couldn't find the entity id, just guess
* that it is the first one. That is usually the case anyway.
*/
if ($fetch_size!=0) $cmd .= "<0.$fetch_size>";
- $data = sqimap_run_command ($imap_stream, $cmd, true, $response, $message, $uid_support);
+ $data = sqimap_run_command ($imap_stream, $cmd, true, $response, $message, TRUE);
do {
$topline = trim(array_shift($data));
} while($topline && ($topline[0] == '*') && !preg_match('/\* [0-9]+ FETCH.*/i', $topline)) ;
* in order to parse html messages. Let's get them here.
*/
// if ($ret{0} == '<') {
-// $data = sqimap_run_command ($imap_stream, "FETCH $id BODY[$ent_id.MIME]", true, $response, $message, $uid_support);
+// $data = sqimap_run_command ($imap_stream, "FETCH $id BODY[$ent_id.MIME]", true, $response, $message, TRUE);
// }
} else if (ereg('"([^"]*)"', $topline, $regs)) {
$ret = $regs[1];
'<tr><td><b>' . _("FETCH line:") . "</td><td>$topline</td></tr>" .
"</table><BR></tt></font><hr>";
- $data = sqimap_run_command ($imap_stream, "FETCH $passed_id BODY[]", true, $response, $message, $uid_support);
+ $data = sqimap_run_command ($imap_stream, "FETCH $passed_id BODY[]", true, $response, $message, TRUE);
array_shift($data);
$wholemessage = implode('', $data);
}
function mime_print_body_lines ($imap_stream, $id, $ent_id=1, $encoding) {
- global $uid_support;
/* Don't kill the connection if the browser is over a dialup
* and it would take over 30 seconds to download it.
} else {
$query = "FETCH $id BODY[$ent_id]";
}
- sqimap_run_command($imap_stream,$query,true,$response,$message,$uid_support,'sqimap_base64_decode','php://stdout',true);
+ sqimap_run_command($imap_stream,$query,true,$response,$message,TRUE,'sqimap_base64_decode','php://stdout',true);
} else {
$body = mime_fetch_body ($imap_stream, $id, $ent_id);
echo decodeBody($body, $encoding);
if ($show_html_default <> 1) {
$entity_conv = array(' ' => ' ',
'<p>' => "\n",
- '<br>' => "\n",
'<P>' => "\n",
+ '<br>' => "\n",
'<BR>' => "\n",
+ '<br />' => "\n",
+ '<BR />' => "\n",
'>' => '>',
'<' => '<');
$body = strtr($body, $entity_conv);
translateText($body, $wrap_at,
$body_message->header->getParameter('charset'));
}
- $link = 'read_body.php?passed_id=' . $id . '&ent_id='.$ent_num.
+ $link = 'passed_id=' . $id . '&ent_id='.$ent_num.
'&mailbox=' . $urlmailbox .'&sort=' . $sort .
'&startMessage=' . $startMessage . '&show_more=0';
if (isset($passed_ent_id)) {
$link .= '&passed_ent_id='.$passed_ent_id;
}
+ $body .= '<center><small><a href="download.php?absolute_dl=true&' .
+ $link . '">' . _("Download this as a file") . '</a>';
if ($view_unsafe_images) {
$text = _("Hide Unsafe Images");
} else {
$text = '';
}
}
- $body .= '<center><small><a href="'.$link.'">'.$text.
- '</a></small></center><br>' . "\n";
+ if($text != '') {
+ $body .= ' | <a href="read_body.php?' . $link . '">' . $text . '</a>';
+ }
+ $body .= '</small></center><br>' . "\n";
}
return $body;
}
}
function sqimap_base64_decode(&$string) {
- $string = str_replace("\r\n", "\n", $string);
+
+ // base64 enoded data goes in pairs of 4 bytes. To achieve on the
+ // fly decoding (to reduce memory usage) you have to check if the
+ // data has incomplete pairs
+
+ // remove the noise in order to check if the 4 bytes pairs are complete
+ $string = str_replace(array("\r\n","\n", "\r", " "),array('','','',''),$string);
+
+ $sStringRem = '';
+ $iMod = strlen($string) % 4;
+ if ($iMod) {
+ $sStringRem = substr($string,-$iMod);
+ // check if $sStringRem contains padding characters
+ if (substr($sStringRem,-1) != '=') {
+ $string = substr($string,0,-$iMod);
+ } else {
+ $sStringRem = '';
+ }
+ }
$string = base64_decode($string);
+ return $sStringRem;
}
+
/* This function decodes the body depending on the encoding type. */
function decodeBody($body, $encoding) {
global $show_html_default;
return $body;
}
-/*
+/**
+ * Decodes headers
+ *
* This functions decode strings that is encoded according to
* RFC1522 (MIME Part Two: Message Header Extensions for Non-ASCII Text).
* Patched by Christian Schmidt <christian@ostenfeld.dk> 23/03/2002
+ *
+ * @param string $string header string that has to be made readable
+ * @param boolean $utfencode change message in order to be readable on user's charset. defaults to true
+ * @param boolean $htmlsave preserve spaces and sanitize html special characters. defaults to true
+ * @param boolean $decide decide if string can be utfencoded. defaults to false
+ * @return string decoded header string
*/
-function decodeHeader ($string, $utfencode=true,$htmlsave=true) {
+function decodeHeader ($string, $utfencode=true,$htmlsave=true,$decide=false) {
global $languages, $squirrelmail_language;
if (is_array($string)) {
$string = implode("\n", $string);
/* if the last chunk isn't an encoded string then put back the space, otherwise don't */
if ($iLastMatch !== $j) {
if ($htmlsave) {
- $ret .= ' ';
+ $ret .= ' ';
} else {
$ret .= ' ';
}
$replace = str_replace('_', ' ', $res[4]);
$replace = preg_replace('/=([0-9a-f]{2})/ie', 'chr(hexdec("\1"))',
$replace);
+ /* decide about valid decoding */
+ if ($decide && is_conversion_safe($res[2])) {
+ $utfencode=true;
+ $can_be_decoded=true;
+ } else {
+ $can_be_decoded=false;
+ }
/* Only encode into entities by default. Some places
* don't need the encoding, like the compose form.
*/
$chunk = $res[5];
$encoded = true;
}
-
- if (!$encoded && $htmlsave) {
- $ret .= htmlspecialchars($chunk);
- } else {
- $ret .= $chunk;
- }
-
if (!$encoded) {
if ($htmlsave) {
- $ret .= ' ';
+ $ret .= ' ';
} else {
$ret .= ' ';
}
}
+
+ if (!$encoded && $htmlsave) {
+ $ret .= htmlspecialchars($chunk);
+ } else {
+ $ret .= $chunk;
+ }
++$i;
}
+ /* remove the first added space */
+ if ($ret) {
+ if ($htmlsave) {
+ $ret = substr($ret,5);
+ } else {
+ $ret = substr($ret,1);
+ }
+ }
return $ret;
}
-/*
+/**
+ * Encodes header as quoted-printable
+ *
* Encode a string according to RFC 1522 for use in headers if it
* contains 8-bit characters or anything that looks like it should
* be encoded.
+ *
+ * @param string $string header string, that has to be encoded
+ * @return string quoted-printable encoded string
*/
function encodeHeader ($string) {
global $default_charset, $languages, $squirrelmail_language;
function_exists($languages[$squirrelmail_language]['XTRA_CODE'])) {
return $languages[$squirrelmail_language]['XTRA_CODE']('encodeheader', $string);
}
- if (strtolower($default_charset) == 'iso-8859-1') {
- $string = str_replace("\240",' ',$string);
- }
+ // instead of removing nbsp here, we don't add it in decodeHeader
+ // if (strtolower($default_charset) == 'iso-8859-1') {
+ // $string = str_replace("\240",' ',$string);
+ //}
// Encode only if the string contains 8-bit characters or =?
$j = strlen($string);
/**
* Remove any backslashes. See if there are any first.
*/
+
if (strstr($attvalue, '\\') !== false){
$attvalue = stripslashes($attvalue);
}
* @param $attvalue A string to run entity check against.
* @return Translated value.
*/
+
function sq_deent($attvalue){
$me = 'sq_deent';
/**
* See if we have to run the checks first. All entities must start
* with "&".
*/
- if (strpos($attvalue, "&") === false){
+ if (strpos($attvalue, '&') === false){
return $attvalue;
}
/**
* Leave " in, as it can mess us up.
*/
$trans = array_flip($trans);
- unset($trans{"""});
+ unset($trans{'"'});
while (list($ent, $val) = each($trans)){
- $attvalue = preg_replace("/$ent*(\W)/si", "$val\\1", $attvalue);
+ $attvalue = preg_replace('/' . $ent . '*/si', $val, $attvalue);
}
/**
* Now translate numbered entities from 1 to 255 if needed.
*/
- if (strpos($attvalue, "#") !== false){
+ if (strpos($attvalue, '#') !== false){
$omit = Array(34, 39);
- for ($asc=1; $asc<256; $asc++){
+ for ($asc = 256; $asc >= 0; $asc--){
if (!in_array($asc, $omit)){
$chr = chr($asc);
- $attvalue = preg_replace("/\�*$asc;*(\D)/si", "$chr\\1",
- $attvalue);
- $attvalue = preg_replace("/\�*".dechex($asc).";*(\W)/si",
- "$chr\\1", $attvalue);
+ $octrule = '/\�*' . $asc . ';*/si';
+ $hexrule = '/\�*' . dechex($asc) . ';*/si';
+ $attvalue = preg_replace($octrule, $chr, $attvalue);
+ $attvalue = preg_replace($hexrule, $chr, $attvalue);
}
}
}
$attvalue = sq_deent($attvalue);
$attvalue = sq_unspace($attvalue);
+ /**
+ * Remove \r \n \t \0 " " "\\"
+ */
+ $attvalue = str_replace(Array("\r", "\n", "\t", "\0", " ", "\\"),
+ Array('', '','','','',''), $attvalue);
+
/**
* Now let's run checks on the attvalues.
* I don't expect anyone to comprehend this. If you do,
"/include-source/i",
"/url\s*\(\s*([\'\"])\s*\S+script\s*:.*([\'\"])\s*\)/si",
"/url\s*\(\s*([\'\"])\s*mocha\s*:.*([\'\"])\s*\)/si",
- "/url\s*\(\s*([\'\"])\s*about\s*:.*([\'\"])\s*\)/si"
+ "/url\s*\(\s*([\'\"])\s*about\s*:.*([\'\"])\s*\)/si",
+ "/(.*)\s*:\s*url\s*\(\s*([\'\"]*)\s*\S+script\s*:.*([\'\"]*)\s*\)/si"
),
Array(
"idiocy",
"url(\\1#\\1)",
"url(\\1#\\1)",
"url(\\1#\\1)",
- "url(\\1#\\1)"
+ "url(\\1#\\1)",
+ "\\1:url(\\2#\\3)"
)
)
)
* @param string $type1 second half of mime type
* @param string $filename filename to tell the browser for downloaded file
* @param boolean $force whether to force the download dialog to pop
+ * @param optional integer $filesize send the Content-Header and length to the browser
* @return void
*/
- function SendDownloadHeaders($type0, $type1, $filename, $force) {
+ function SendDownloadHeaders($type0, $type1, $filename, $force, $filesize=0) {
global $languages, $squirrelmail_language;
$isIE = $isIE6 = 0;
if (isset($languages[$squirrelmail_language]['XTRA_CODE']) &&
function_exists($languages[$squirrelmail_language]['XTRA_CODE'])) {
$filename =
- $languages[$squirrelmail_language]['XTRA_CODE']('downloadfilename', $filename, $HTTP_USER_AGENT);
+ $languages[$squirrelmail_language]['XTRA_CODE']('downloadfilename', $filename, $HTTP_USER_AGENT);
} else {
- $filename = ereg_replace('[\\/:\*\?"<>\|;]', '_', str_replace(' ', ' ', $filename));
+ $filename = ereg_replace('[\\/:\*\?"<>\|;]', '_', str_replace(' ', ' ', $filename));
+ }
+
+ // A Pox on Microsoft and it's Internet Explorer!
+ //
+ // IE has lots of bugs with file downloads.
+ // It also has problems with SSL. Both of these cause problems
+ // for us in this function.
+ //
+ // See this article on Cache Control headers and SSL
+ // http://support.microsoft.com/default.aspx?scid=kb;en-us;323308
+ //
+ // The best thing you can do for IE is to upgrade to the latest
+ // version
+ //set all the Cache Control Headers for IE
+ if ($isIE) {
+ header ("Pragma: public");
+ header ("Cache-Control: no-store, max-age=0, no-cache, must-revalidate"); # HTTP/1.1
+ header ("Cache-Control: post-check=0, pre-check=0", false);
+ header ("Cache-control: private");
+
+ //set the inline header for IE, we'll add the attachment header later if we need it
+ header ("Content-Disposition: inline; filename=$filename");
}
- // A Pox on Microsoft and it's Office!
if (!$force) {
// Try to show in browser window
- header("Content-Disposition: inline; filename=\"$filename\"");
- header("Content-Type: $type0/$type1; name=\"$filename\"");
+ header ("Content-Disposition: inline; filename=\"$filename\"");
+ header ("Content-Type: $type0/$type1; name=\"$filename\"");
} else {
// Try to pop up the "save as" box
+
// IE makes this hard. It pops up 2 save boxes, or none.
// http://support.microsoft.com/support/kb/articles/Q238/5/88.ASP
- // But, accordint to Microsoft, it is "RFC compliant but doesn't
+ // http://support.microsoft.com/default.aspx?scid=kb;EN-US;260519
+ // But, according to Microsoft, it is "RFC compliant but doesn't
// take into account some deviations that allowed within the
// specification." Doesn't that mean RFC non-compliant?
// http://support.microsoft.com/support/kb/articles/Q258/4/52.ASP
- //
- // The best thing you can do for IE is to upgrade to the latest
- // version
+
+ // all browsers need the application/octet-stream header for this
+ header ("Content-Type: application/octet-stream; name=\"$filename\"");
+
+ // http://support.microsoft.com/support/kb/articles/Q182/3/15.asp
+ // Do not have quotes around filename, but that applied to
+ // "attachment"... does it apply to inline too?
+ header ("Content-Disposition: attachment; filename=\"$filename\"");
+
if ($isIE && !$isIE6) {
- // http://support.microsoft.com/support/kb/articles/Q182/3/15.asp
- // Do not have quotes around filename, but that applied to
- // "attachment"... does it apply to inline too?
- //
// This combination seems to work mostly. IE 5.5 SP 1 has
// known issues (see the Microsoft Knowledge Base)
- header("Content-Disposition: inline; filename=$filename");
+
// This works for most types, but doesn't work with Word files
- header("Content-Type: application/download; name=\"$filename\"");
+ header ("Content-Type: application/download; name=\"$filename\"");
// These are spares, just in case. :-)
//header("Content-Type: $type0/$type1; name=\"$filename\"");
//header("Content-Type: application/x-msdownload; name=\"$filename\"");
//header("Content-Type: application/octet-stream; name=\"$filename\"");
} else {
- header("Content-Disposition: attachment; filename=\"$filename\"");
- // application/octet-stream forces download for Netscape
- header("Content-Type: application/octet-stream; name=\"$filename\"");
+ // another application/octet-stream forces download for Netscape
+ header ("Content-Type: application/octet-stream; name=\"$filename\"");
}
}
- }
+
+ //send the content-length header if the calling function provides it
+ if ($filesize > 0) {
+ header("Content-Length: $filesize");
+ }
+
+} // end fn SendDownloadHeaders
?>
projects / squirrelmail.git / blobdiff