X-Git-Url: https://vcs.fsf.org/?a=blobdiff_plain;f=functions%2Fsmtp.php;h=403f3bd7be7e8ff2da8b6e1e8ba23a830bd9fbd2;hb=856b2ee25a1cd7e05dd5ccdbe9d0e4744673351a;hp=205251316dd5f313dcabfd706c6c3b780d323b39;hpb=e25c2bd35cda260edc86d61b183c592be4c0f610;p=squirrelmail.git diff --git a/functions/smtp.php b/functions/smtp.php index 20525131..403f3bd7 100644 --- a/functions/smtp.php +++ b/functions/smtp.php @@ -12,29 +12,13 @@ * $Id$ */ -/*****************************************************************/ -/*** THIS FILE NEEDS TO HAVE ITS FORMATTING FIXED!!! ***/ -/*** PLEASE DO SO AND REMOVE THIS COMMENT SECTION. ***/ -/*** + Base level indent should begin at left margin, as ***/ -/*** the require_once and global lines below. ***/ -/*** + All identation should consist of four space blocks ***/ -/*** + Tab characters are evil. ***/ -/*** + all comments should use "slash-star ... star-slash" ***/ -/*** style -- no pound characters, no slash-slash style ***/ -/*** + FLOW CONTROL STATEMENTS (if, while, etc) SHOULD ***/ -/*** ALWAYS USE { AND } CHARACTERS!!! ***/ -/*** + Please use ' instead of ", when possible. Note " ***/ -/*** should always be used in _( ) function calls. ***/ -/*** Thank you for your help making the SM code more readable. ***/ -/*****************************************************************/ - require_once('../functions/addressbook.php'); require_once('../functions/plugin.php'); require_once('../functions/prefs.php'); global $username, $popuser, $domain; -// This should most probably go to some initialization... +/* This should most probably go to some initialization... */ if (ereg("^([^@%/]+)[@%/](.+)$", $username, $usernamedata)) { $popuser = $usernamedata[1]; $domain = $usernamedata[2]; @@ -42,29 +26,35 @@ if (ereg("^([^@%/]+)[@%/](.+)$", $username, $usernamedata)) { } else { $popuser = $username; } -// We need domain for smtp -if (!$domain) +/* We need domain for smtp */ +if (!$domain) { $domain = getenv('HOSTNAME'); +} -// Returns true only if this message is multipart +/* Returns true only if this message is multipart */ function isMultipart () { global $attachments; - if (count($attachments)>0) + if (count($attachments)>0) { return true; - else + } + else { return false; + } } -// looks up aliases in the addressbook and expands them to -// the full address. -// Adds @$domain if it wasn't in the address book and if it -// doesn't have an @ symbol in it +/* looks up aliases in the addressbook and expands them to + * the full address. + * + * Adds @$domain if it wasn't in the address book and if it + * doesn't have an @ symbol in it + */ function expandAddrs ($array) { global $domain; - // don't show errors -- kinda critical that we don't see - // them here since the redirect won't work if we do show them + /* don't show errors -- kinda critical that we don't see + * them here since the redirect won't work if we do show them + */ $abook = addressbook_init(false); for ($i=0; $i < count($array); $i++) { $result = $abook->lookup($array[$i]); @@ -77,25 +67,28 @@ function expandAddrs ($array) { $array[$i] = $ret; } else - { - if (strpos($array[$i], '@') === false) - $array[$i] .= '@' . $domain; - $array[$i] = '<' . $array[$i] . '>'; + { + if (strpos($array[$i], '@') === false) { + $array[$i] .= '@' . $domain; } + $array[$i] = '<' . $array[$i] . '>'; + } } return $array; } -// looks up aliases in the addressbook and expands them to -// the RFC 821 valid RCPT address. ie -// Adds @$domain if it wasn't in the address book and if it -// doesn't have an @ symbol in it +/* looks up aliases in the addressbook and expands them to + * the RFC 821 valid RCPT address. ie + * Adds @$domain if it wasn't in the address book and if it + * doesn't have an @ symbol in it + */ function expandRcptAddrs ($array) { global $domain; - // don't show errors -- kinda critical that we don't see - // them here since the redirect won't work if we do show them + /* don't show errors -- kinda critical that we don't see + * them here since the redirect won't work if we do show them + */ $abook = addressbook_init(false); for ($i=0; $i < count($array); $i++) { $result = $abook->lookup($array[$i]); @@ -105,8 +98,9 @@ function expandRcptAddrs ($array) { $array[$i] = $ret; } else { - if (strpos($array[$i], '@') === false) + if (strpos($array[$i], '@') === false) { $array[$i] .= '@' . $domain; + } $array[$i] = '<' . $array[$i] . '>'; } } @@ -114,33 +108,42 @@ function expandRcptAddrs ($array) { } -// Attach the files that are due to be attached +/* Attach the files that are due to be attached + */ function attachFiles ($fp) { global $attachments, $attachment_dir, $username; - + $length = 0; - + $hashed_attachment_dir = getHashedDir($username, $attachment_dir); if (isMultipart()) { foreach ($attachments as $info) { - if (isset($info['type'])) + if (isset($info['type'])) { $filetype = $info['type']; - else + } + else { $filetype = 'application/octet-stream'; - - $header = '--'.mimeBoundary()."\r\n"; - $header .= "Content-Type: $filetype; name=\"" . - $info['remotefilename'] . "\"\r\n"; - $header .= "Content-Disposition: attachment; filename=\"" . - $info['remotefilename'] . "\"\r\n"; - - // Use 'rb' for NT systems -- read binary - // Unix doesn't care -- everything's binary! :-) - + } + + $header = '--' . mimeBoundary() . "\r\n"; + if ( isset($info['remotefilename']) && $info['remotefilename'] != '') { + $header .= "Content-Type: $filetype; name=\"" . + $info['remotefilename'] . "\"\r\n"; + $header .= "Content-Disposition: attachment; filename=\"" . + $info['remotefilename'] . "\"\r\n"; + } else { + $header .= "Content-Type: $filetype;\r\n"; + } + + + /* Use 'rb' for NT systems -- read binary + * Unix doesn't care -- everything's binary! :-) + */ + $filename = $hashed_attachment_dir . '/' . $info['localfilename']; $file = fopen ($filename, 'rb'); if (substr($filetype, 0, 5) == 'text/' || - $filetype == 'message/rfc822') { + substr($filetype, 0, 8) == 'message/' ) { $header .= "\r\n"; fputs ($fp, $header); $length += strlen($header); @@ -148,8 +151,9 @@ function attachFiles ($fp) { $tmp = str_replace("\r\n", "\n", $tmp); $tmp = str_replace("\r", "\n", $tmp); $tmp = str_replace("\n", "\r\n", $tmp); - if (feof($fp) && substr($tmp, -2) != "\r\n") + if (feof($fp) && substr($tmp, -2) != "\r\n") { $tmp .= "\r\n"; + } fputs($fp, $tmp); $length += strlen($tmp); } @@ -169,7 +173,8 @@ function attachFiles ($fp) { return $length; } -// Delete files that are uploaded for attaching +/* Delete files that are uploaded for attaching + */ function deleteAttachments() { global $attachments, $attachment_dir; @@ -186,15 +191,17 @@ function deleteAttachments() { } } -// Return a nice MIME-boundary +/* Return a nice MIME-boundary + */ function mimeBoundary () { static $mimeBoundaryString; - - if ($mimeBoundaryString == "") { - $mimeBoundaryString = "----=_" . - GenerateRandomString(60, '\'()+,-./:=?_', 7); + + if ( !isset( $mimeBoundaryString ) || + $mimeBoundaryString == '') { + $mimeBoundaryString = '----=_' . date( 'YmdHis' ) . '_' . + mt_rand( 10000, 99999 ); } - + return $mimeBoundaryString; } @@ -203,13 +210,16 @@ function timezone () { global $invert_time; $diff_second = date('Z'); - if ($invert_time) + if ($invert_time) { $diff_second = - $diff_second; - if ($diff_second > 0) + } + if ($diff_second > 0) { $sign = '+'; - else + } + else { $sign = '-'; - + } + $diff_second = abs($diff_second); $diff_hour = floor ($diff_second / 3600); @@ -227,8 +237,9 @@ function write822Header ($fp, $t, $c, $b, $subject, $more_headers) { global $default_charset, $HTTP_VIA, $HTTP_X_FORWARDED_FOR; global $REMOTE_HOST, $identity; - // Storing the header to make sure the header is the same - // everytime the header is printed. + /* Storing the header to make sure the header is the same + * everytime the header is printed. + */ static $header, $headerlength; if ($header == '') { @@ -245,8 +256,9 @@ function write822Header ($fp, $t, $c, $b, $subject, $more_headers) { $from_addr = getPref($data_dir, $username, 'email_address'); } - if ($from_addr == '') + if ($from_addr == '') { $from_addr = $popuser.'@'.$domain; + } $to_list = getLineOfAddrs($to); $cc_list = getLineOfAddrs($cc); @@ -254,10 +266,12 @@ function write822Header ($fp, $t, $c, $b, $subject, $more_headers) { /* Encoding 8-bit characters and making from line */ $subject = encodeHeader($subject); - if ($from == '') + if ($from == '') { $from = "<$from_addr>"; - else + } + else { $from = '"' . encodeHeader($from) . "\" <$from_addr>"; + } /* This creates an RFC 822 date */ $date = date("D, j M Y H:i:s ", mktime()) . timezone(); @@ -267,14 +281,17 @@ function write822Header ($fp, $t, $c, $b, $subject, $more_headers) { $message_id .= time() . '.squirrel@' . $SERVER_NAME .'>'; /* Make an RFC822 Received: line */ - if (isset($REMOTE_HOST)) + if (isset($REMOTE_HOST)) { $received_from = "$REMOTE_HOST ([$REMOTE_ADDR])"; - else + } + else { $received_from = $REMOTE_ADDR; - + } + if (isset($HTTP_VIA) || isset ($HTTP_X_FORWARDED_FOR)) { - if ($HTTP_X_FORWARDED_FOR == '') + if ($HTTP_X_FORWARDED_FOR == '') { $HTTP_X_FORWARDED_FOR = 'unknown'; + } $received_from .= " (proxying for $HTTP_X_FORWARDED_FOR)"; } @@ -290,8 +307,26 @@ function write822Header ($fp, $t, $c, $b, $subject, $more_headers) { $header .= "From: $from\r\n"; $header .= "To: $to_list\r\n"; // Who it's TO - /* Insert headers from the $more_headers array */ - if(is_array($more_headers)) { + if (isset($more_headers["Content-Type"])) { + $contentType = $more_headers["Content-Type"]; + unset($more_headers["Content-Type"]); + } + else { + if (isMultipart()) { + $contentType = "multipart/mixed;"; + } + else { + if ($default_charset != '') { + $contentType = 'text/plain; charset='.$default_charset; + } + else { + $contentType = 'text/plain;'; + } + } + } + + /* Insert headers from the $more_headers array */ + if(is_array($more_headers)) { reset($more_headers); while(list($h_name, $h_val) = each($more_headers)) { $header .= sprintf("%s: %s\r\n", $h_name, $h_val); @@ -302,8 +337,9 @@ function write822Header ($fp, $t, $c, $b, $subject, $more_headers) { $header .= "Cc: $cc_list\r\n"; // Who the CCs are } - if ($reply_to != '') + if ($reply_to != '') { $header .= "Reply-To: $reply_to\r\n"; + } if ($useSendmail) { if ($bcc_list) { @@ -312,20 +348,17 @@ function write822Header ($fp, $t, $c, $b, $subject, $more_headers) { } } - $header .= "X-Mailer: SquirrelMail (version $version)\r\n"; // Identify SquirrelMail - - // Do the MIME-stuff + $header .= "X-Mailer: SquirrelMail (version $version)\r\n"; /* Identify SquirrelMail */ + + /* Do the MIME-stuff */ $header .= "MIME-Version: 1.0\r\n"; if (isMultipart()) { - $header .= 'Content-Type: multipart/mixed; boundary="'; + $header .= 'Content-Type: '.$contentType.' boundary="'; $header .= mimeBoundary(); $header .= "\"\r\n"; } else { - if ($default_charset != '') - $header .= "Content-Type: text/plain; charset=$default_charset\r\n"; - else - $header .= "Content-Type: text/plain;\r\n"; + $header .= 'Content-Type: '.$contentType."\r\n"; $header .= "Content-Transfer-Encoding: 8bit\r\n"; } $header .= "\r\n"; // One blank line to separate header and body @@ -333,13 +366,14 @@ function write822Header ($fp, $t, $c, $b, $subject, $more_headers) { $headerlength = strlen($header); } - // Write the header + /* Write the header */ fputs ($fp, $header); return $headerlength; } -// Send the body +/* Send the body + */ function writeBody ($fp, $passedBody) { global $default_charset; @@ -348,10 +382,12 @@ function writeBody ($fp, $passedBody) { if (isMultipart()) { $body = '--'.mimeBoundary()."\r\n"; - if ($default_charset != "") + if ($default_charset != "") { $body .= "Content-Type: text/plain; charset=$default_charset\r\n"; - else + } + else { $body .= "Content-Type: text/plain\r\n"; + } $body .= "Content-Transfer-Encoding: 8bit\r\n\r\n"; $body .= $passedBody . "\r\n\r\n"; @@ -359,7 +395,9 @@ function writeBody ($fp, $passedBody) { $attachmentlength = attachFiles($fp); - if (!isset($postbody)) $postbody = ""; + if (!isset($postbody)) { + $postbody = ""; + } $postbody .= "\r\n--".mimeBoundary()."--\r\n\r\n"; fputs ($fp, $postbody); } else { @@ -372,19 +410,21 @@ function writeBody ($fp, $passedBody) { return (strlen($body) + strlen($postbody) + $attachmentlength); } -// Send mail using the sendmail command +/* Send mail using the sendmail command + */ function sendSendmail($t, $c, $b, $subject, $body, $more_headers) { global $sendmail_path, $popuser, $username, $domain; - // Build envelope sender address. Make sure it doesn't contain - // spaces or other "weird" chars that would allow a user to - // exploit the shell/pipe it is used in. + /* Build envelope sender address. Make sure it doesn't contain + * spaces or other "weird" chars that would allow a user to + * exploit the shell/pipe it is used in. + */ $envelopefrom = "$popuser@$domain"; $envelopefrom = ereg_replace("[[:blank:]]",'', $envelopefrom); $envelopefrom = ereg_replace("[[:space:]]",'', $envelopefrom); $envelopefrom = ereg_replace("[[:cntrl:]]",'', $envelopefrom); - // open pipe to sendmail or qmail-inject (qmail-inject doesn't accept -t param) + /* open pipe to sendmail or qmail-inject (qmail-inject doesn't accept -t param) */ if (strstr($sendmail_path, "qmail-inject")) { $fp = popen (escapeshellcmd("$sendmail_path -f$envelopefrom"), "w"); } else { @@ -418,13 +458,16 @@ function sendSMTP($t, $c, $b, $subject, $body, $more_headers) { $to = expandRcptAddrs(parseAddrs($t)); $cc = expandRcptAddrs(parseAddrs($c)); $bcc = expandRcptAddrs(parseAddrs($b)); - if (isset($identity) && $identity != 'default') + if (isset($identity) && $identity != 'default') { $from_addr = getPref($data_dir, $username, 'email_address' . $identity); - else + } + else { $from_addr = getPref($data_dir, $username, 'email_address'); + } - if (!$from_addr) + if (!$from_addr) { $from_addr = "$popuser@$domain"; + } $smtpConnection = fsockopen($smtpServerAddress, $smtpPort, $errorNumber, $errorString); if (!$smtpConnection) { @@ -438,7 +481,7 @@ function sendSMTP($t, $c, $b, $subject, $body, $more_headers) { $to_list = getLineOfAddrs($to); $cc_list = getLineOfAddrs($cc); - /** Lets introduce ourselves */ + /* Lets introduce ourselves */ if (! isset ($use_authenticated_smtp) || $use_authenticated_smtp == false) { fputs($smtpConnection, "HELO $domain\r\n"); $tmp = fgets($smtpConnection, 1024); @@ -450,49 +493,65 @@ function sendSMTP($t, $c, $b, $subject, $body, $more_headers) { fputs($smtpConnection, "AUTH LOGIN\r\n"); $tmp = fgets($smtpConnection, 1024); - if (errorCheck($tmp, $smtpConnection)!=5) return(0); - + if (errorCheck($tmp, $smtpConnection)!=5) { + return(0); + } + fputs($smtpConnection, base64_encode ($username) . "\r\n"); $tmp = fgets($smtpConnection, 1024); - if (errorCheck($tmp, $smtpConnection)!=5) return(0); + if (errorCheck($tmp, $smtpConnection)!=5) { + return(0); + } fputs($smtpConnection, base64_encode (OneTimePadDecrypt($key, $onetimepad)) . "\r\n"); $tmp = fgets($smtpConnection, 1024); - if (errorCheck($tmp, $smtpConnection)!=5) return(0); + if (errorCheck($tmp, $smtpConnection)!=5) { + return(0); + } } - /** Ok, who is sending the message? */ + /* Ok, who is sending the message? */ fputs($smtpConnection, "MAIL FROM: <$from_addr>\r\n"); $tmp = fgets($smtpConnection, 1024); - if (errorCheck($tmp, $smtpConnection)!=5) return(0); + if (errorCheck($tmp, $smtpConnection)!=5) { + return(0); + } - /** send who the recipients are */ + /* send who the recipients are */ for ($i = 0; $i < count($to); $i++) { fputs($smtpConnection, "RCPT TO: $to[$i]\r\n"); $tmp = fgets($smtpConnection, 1024); - if (errorCheck($tmp, $smtpConnection)!=5) return(0); + if (errorCheck($tmp, $smtpConnection)!=5) { + return(0); + } } for ($i = 0; $i < count($cc); $i++) { fputs($smtpConnection, "RCPT TO: $cc[$i]\r\n"); $tmp = fgets($smtpConnection, 1024); - if (errorCheck($tmp, $smtpConnection)!=5) return(0); + if (errorCheck($tmp, $smtpConnection)!=5) { + return(0); + } } for ($i = 0; $i < count($bcc); $i++) { fputs($smtpConnection, "RCPT TO: $bcc[$i]\r\n"); $tmp = fgets($smtpConnection, 1024); - if (errorCheck($tmp, $smtpConnection)!=5) return(0); + if (errorCheck($tmp, $smtpConnection)!=5) { + return(0); + } } - - /** Lets start sending the actual message */ + + /* Lets start sending the actual message */ fputs($smtpConnection, "DATA\r\n"); $tmp = fgets($smtpConnection, 1024); - if (errorCheck($tmp, $smtpConnection)!=5) return(0); - - // Send the message + if (errorCheck($tmp, $smtpConnection)!=5) { + return(0); + } + + /* Send the message */ $headerlength = write822Header ($smtpConnection, $t, $c, $b, $subject, $more_headers); $bodylength = writeBody($smtpConnection, $body); - fputs($smtpConnection, ".\r\n"); // end the DATA part + fputs($smtpConnection, ".\r\n"); /* end the DATA part */ $tmp = fgets($smtpConnection, 1024); $num = errorCheck($tmp, $smtpConnection, true); if ($num != 250) { @@ -504,7 +563,7 @@ function sendSMTP($t, $c, $b, $subject, $body, $more_headers) { return(0); } - fputs($smtpConnection, "QUIT\r\n"); // log off + fputs($smtpConnection, "QUIT\r\n"); /* log off */ fclose($smtpConnection); @@ -515,16 +574,16 @@ function sendSMTP($t, $c, $b, $subject, $body, $more_headers) { function errorCheck($line, $smtpConnection, $verbose = false) { global $color; - // Read new lines on a multiline response + /* Read new lines on a multiline response */ $lines = $line; while(ereg("^[0-9]+-", $line)) { $line = fgets($smtpConnection, 1024); $lines .= $line; } - // Status: 0 = fatal - // 5 = ok - + /* Status: 0 = fatal + * 5 = ok + */ $err_num = substr($line, 0, strpos($line, " ")); switch ($err_num) { case 500: $message = 'Syntax error; command not recognized'; @@ -541,8 +600,7 @@ function errorCheck($line, $smtpConnection, $verbose = false) { break; case 504: $message = 'Command parameter not implemented'; $status = 0; - break; - + break; case 211: $message = 'System status, or system help reply'; $status = 5; @@ -551,18 +609,19 @@ function errorCheck($line, $smtpConnection, $verbose = false) { $status = 5; break; - case 220: $message = 'Service ready'; $status = 5; break; case 221: $message = 'Service closing transmission channel'; $status = 5; break; + case 421: $message = 'Service not available, closing chanel'; $status = 0; break; - case 235: return(5); break; + case 235: return(5); + break; case 250: $message = 'Requested mail action okay, completed'; $status = 5; break; @@ -615,25 +674,26 @@ function errorCheck($line, $smtpConnection, $verbose = false) { return $err_num; } -function sendMessage($t, $c, $b, $subject, $body, $reply_id, $prio = 3) { - global $useSendmail, $msg_id, $is_reply, $mailbox, $onetimepad; - global $data_dir, $username, $domain, $key, $version, $sent_folder, $imapServerAddress, $imapPort; - global $default_use_priority; - global $more_headers; +function sendMessage($t, $c, $b, $subject, $body, $reply_id, $MDN, $prio = 3) { + global $useSendmail, $msg_id, $is_reply, $mailbox, $onetimepad, + $data_dir, $username, $domain, $key, $version, $sent_folder, $imapServerAddress, + $imapPort, $default_use_priority, $more_headers, $request_mdn, $request_dr; + $more_headers = Array(); - do_hook("smtp_send"); - + do_hook('smtp_send'); + $imap_stream = sqimap_login($username, $key, $imapServerAddress, $imapPort, 1); - + if (isset($reply_id) && $reply_id) { sqimap_mailbox_select ($imap_stream, $mailbox); sqimap_messages_flag ($imap_stream, $reply_id, $reply_id, 'Answered'); - - // Insert In-Reply-To and References headers if the - // message-id of the message we reply to is set (longer than "<>") - // The References header should really be the old Referenced header - // with the message ID appended, but it can be only the message ID too. + + /* Insert In-Reply-To and References headers if the + * message-id of the message we reply to is set (longer than "<>") + * The References header should really be the old Referenced header + * with the message ID appended, but it can be only the message ID too. + */ $hdr = sqimap_get_small_header ($imap_stream, $reply_id, false); if(strlen($hdr->message_id) > 2) { $more_headers['In-Reply-To'] = $hdr->message_id; @@ -643,24 +703,41 @@ function sendMessage($t, $c, $b, $subject, $body, $reply_id, $prio = 3) { if ($default_use_priority) { $more_headers = array_merge($more_headers, createPriorityHeaders($prio)); } - - // In order to remove the problem of users not able to create - // messages with "." on a blank line, RFC821 has made provision - // in section 4.5.2 (Transparency). + + $requestRecipt = 0; + if (isset($request_dr)) { + $requestRecipt += 1; + } + if (isset($request_mdn)) { + $requestRecipt += 2; + } + if ( $requestRecipt > 0) { + $more_headers = array_merge($more_headers, createReceiptHeaders($requestRecipt)); + } + + /* In order to remove the problem of users not able to create + * messages with "." on a blank line, RFC821 has made provision + * in section 4.5.2 (Transparency). + */ $body = ereg_replace("\n\\.", "\n..", $body); $body = ereg_replace("^\\.", "..", $body); - - // this is to catch all plain \n instances and - // replace them with \r\n. All newlines were converted - // into just \n inside the compose.php file. + + /* this is to catch all plain \n instances and + * replace them with \r\n. All newlines were converted + * into just \n inside the compose.php file. + */ $body = ereg_replace("\n", "\r\n", $body); + if ($MDN) { + $more_headers["Content-Type"] = "multipart/report; ". + "report-type=disposition-notification;"; + } + if ($useSendmail) { - $length = sendSendmail($t, $c, $b, $subject, $body, $more_headers); + $length = sendSendmail($t, $c, $b, $subject, $body, $more_headers); } else { $length = sendSMTP($t, $c, $b, $subject, $body, $more_headers); } - if (sqimap_mailbox_exists ($imap_stream, $sent_folder)) { sqimap_append ($imap_stream, $sent_folder, $length); write822Header ($imap_stream, $t, $c, $b, $subject, $more_headers); @@ -668,33 +745,67 @@ function sendMessage($t, $c, $b, $subject, $body, $reply_id, $prio = 3) { sqimap_append_done ($imap_stream); } sqimap_logout($imap_stream); - // Delete the files uploaded for attaching (if any). - // only if $length != 0 (if there was no error) - if ($length) + /* Delete the files uploaded for attaching (if any). + * only if $length != 0 (if there was no error) + */ + if ($length) { ClearAttachments(); - + } + return $length; } function createPriorityHeaders($prio) { $prio_headers = Array(); - $prio_headers["X-Priority"] = $prio; - + $prio_headers['X-Priority'] = $prio; + switch($prio) { - case 1: $prio_headers["Importance"] = "High"; - $prio_headers["X-MSMail-Priority"] = "High"; + case 1: $prio_headers['Importance'] = 'High'; + $prio_headers['X-MSMail-Priority'] = 'High'; break; - - case 3: $prio_headers["Importance"] = "Normal"; - $prio_headers["X-MSMail-Priority"] = "Normal"; + + case 3: $prio_headers['Importance'] = 'Normal'; + $prio_headers['X-MSMail-Priority'] = 'Normal'; break; - + case 5: - $prio_headers["Importance"] = "Low"; - $prio_headers["X-MSMail-Priority"] = "Low"; + $prio_headers['Importance'] = 'Low'; + $prio_headers['X-MSMail-Priority'] = 'Low'; break; } return $prio_headers; } +function createReceiptHeaders($receipt) { + + GLOBAL $data_dir, $username; + + $receipt_headers = Array(); + $from_addr = getPref($data_dir, $username, 'email_address'); + $from = getPref($data_dir, $username, 'full_name'); + + if ($from == '') { + $from = "<$from_addr>"; + } + else { + $from = '"' . encodeHeader($from) . "\" <$from_addr>"; + } + + /* On Delivery */ + if ( $receipt == 1 + || $receipt == 3 ) { + $receipt_headers["Return-Receipt-To"] = $from; + } + /* On Read */ + if ($receipt == 2 + || $receipt == 3 ) { + /* Pegasus Mail */ + $receipt_headers["X-Confirm-Reading-To"] = $from; + /* RFC 2298 */ + $receipt_headers["Disposition-Notification-To"] = $from; + } + return $receipt_headers; +} + + ?>