Changed language-code link.
[squirrelmail.git] / functions / smtp.php
index a15f4af5ee53d5f47b4cc1458143c6c46ce537a8..f8c3fdbbe845a4cacfbc3415e70afa78fa4804bb 100644 (file)
-<?
+<?php
    /** smtp.php
     **
     ** This contains all the functions needed to send messages through
-    ** an smtp server.
+    ** an smtp server or sendmail.
     **/
 
+   $smtp_php = true;
+
+   // Returns true only if this message is multipart
+   function isMultipart () {
+      global $attachments;
+      
+      if (count($attachments)>0)
+         return true;
+      else
+         return false;
+   }
+
+   // Attach the files that are due to be attached
+   function attachFiles ($fp) {
+      global $attachments, $attachment_dir;
+
+      $length = 0;
+
+      if (isMultipart()) {
+         reset($attachments);
+         while (list($localname, $remotename) = each($attachments)) {
+            // This is to make sure noone is giving a filename in another
+            // directory
+            $localname = ereg_replace ("\\/", "", $localname);
+            
+            $fileinfo = fopen ($attachment_dir.$localname.".info", "r");
+            $filetype = fgets ($fileinfo, 8192);
+            fclose ($fileinfo);
+            $filetype = trim ($filetype);
+            if ($filetype=="")
+               $filetype = "application/octet-stream";
+            
+            $header = "--".mimeBoundary()."\r\n";
+            $header .= "Content-Type: $filetype\r\n";
+            $header .= "Content-Disposition: attachment; filename=\"$remotename\"\r\n";
+            $header .= "Content-Transfer-Encoding: base64\r\n\r\n";
+            fputs ($fp, $header);
+            $length += strlen($header);
+            
+            $file = fopen ($attachment_dir.$localname, "r");
+            while ($tmp = fread($file, 570)) {
+               $encoded = chunk_split(base64_encode($tmp));
+               $length += strlen($encoded);
+               fputs ($fp, $encoded);
+            }
+            fclose ($file);
+         }
+      }
+
+      return $length;
+   }
+
+   // Delete files that are uploaded for attaching
+   function deleteAttachments() {
+      global $attachments, $attachment_dir;
+
+      if (isMultipart()) {
+         reset($attachments);
+         while (list($localname, $remotename) = each($attachments)) {
+            if (!ereg ("\\/", $localname)) {
+               unlink ($attachment_dir.$localname);
+               unlink ($attachment_dir.$localname.".info");
+            }
+         }
+      }
+   }
+
+   // Return a nice MIME-boundary
+   function mimeBoundary () {
+      global $version, $REMOTE_ADDR, $SERVER_NAME, $REMOTE_PORT;
+
+      static $mimeBoundaryString;
+
+      if ($mimeBoundaryString == "") {
+         $temp = "SquirrelMail".$version.$REMOTE_ADDR.$SERVER_NAME.
+            $REMOTE_PORT;
+         $mimeBoundaryString = "=-_+".substr(md5($temp),1,20);
+      }
+
+      return $mimeBoundaryString;
+   }
+
+   /* Time offset for correct timezone */
+   function timezone () {
+      $diff_second = date("Z");
+      if ($diff_second > 0)
+         $sign = "+";
+      else
+         $sign = "-";
+
+      $diff_second = abs($diff_second);
+
+      $diff_hour = floor ($diff_second / 3600);
+      $diff_minute = floor (($diff_second-3600*$diff_hour) / 60);
+
+      $zonename = "(".strftime("%Z").")";
+      $result = sprintf ("%s%02d%02d %s", $sign, $diff_hour, $diff_minute, $zonename);
+      return ($result);
+   }
+
+   /* Print all the needed RFC822 headers */
+   function write822Header ($fp, $t, $c, $b, $subject, $more_headers) {
+      global $REMOTE_ADDR, $SERVER_NAME, $REMOTE_PORT;
+      global $data_dir, $username, $domain, $version, $useSendmail;
+      global $default_charset, $HTTP_VIA, $HTTP_X_FORWARDED_FOR;
+      global $REMOTE_HOST;
+
+      // Storing the header to make sure the header is the same
+      // everytime the header is printed.
+      static $header, $headerlength;
+
+      if ($header == "") {
+         $to = parseAddrs($t);
+         $cc = parseAddrs($c);
+         $bcc = parseAddrs($b);
+         $reply_to = getPref($data_dir, $username, "reply_to");
+         $from = getPref($data_dir, $username, "full_name");
+         $from_addr = getPref($data_dir, $username, "email_address");
+         
+         if ($from_addr == "")
+            $from_addr = "$username@$domain";
+         
+         $to_list = getLineOfAddrs($to);
+         $cc_list = getLineOfAddrs($cc);
+         $bcc_list = getLineOfAddrs($bcc);
+         
+         /* Encoding 8-bit characters and making from line */
+         $subject = sqStripSlashes(encodeHeader($subject));
+         if ($from == "")
+            $from = "<$from_addr>";
+         else
+            $from = "\"" . encodeHeader($from) . "\" <$from_addr>";
+         
+         /* This creates an RFC 822 date */
+         $date = date("D, j M Y H:i:s ", mktime()) . timezone();
+
+         /* Create a message-id */
+         $message_id = "<" . $REMOTE_PORT . "." . $REMOTE_ADDR . ".";
+         $message_id .= time() . ".squirrel@" . $SERVER_NAME .">";
+         
+         /* Make an RFC822 Received: line */
+         if (isset($REMOTE_HOST))
+            $received_from = "$REMOTE_HOST ([$REMOTE_ADDR])";
+         else
+            $received_from = $REMOTE_ADDR;
+    
+         if (isset($HTTP_VIA) || isset ($HTTP_X_FORWARDED_FOR)) {
+            if ($HTTP_X_FORWARDED_FOR == "")
+               $HTTP_X_FORWARDED_FOR = "unknown";
+            $received_from .= " (proxying for $HTTP_X_FORWARDED_FOR)";
+         }            
+    
+         $header  = "Received: from $received_from\r\n";
+         $header .= "        (SquirrelMail authenticated user $username)\r\n";
+         $header .= "        by $SERVER_NAME with HTTP;\r\n";
+         $header .= "        $date\r\n";
+         
+         /* Insert the rest of the header fields */
+         $header .= "Message-ID: $message_id\r\n";
+         $header .= "Date: $date\r\n";
+         $header .= "Subject: $subject\r\n";
+         $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)) {
+           reset($more_headers);
+           while(list($h_name, $h_val) = each($more_headers)) {
+              $header .= sprintf("%s: %s\r\n", $h_name, $h_val);
+           }
+        }
+
+         if ($cc_list) {
+            $header .= "Cc: $cc_list\r\n"; // Who the CCs are
+         }
+         
+         if ($reply_to != "")
+            $header .= "Reply-To: $reply_to\r\n";
+         
+         if ($useSendmail) {
+            if ($bcc_list) {
+               // BCCs is removed from header by sendmail
+               $header .= "Bcc: $bcc_list\r\n"; 
+            }
+         }
+         
+         $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 .= 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-Transfer-Encoding: 8bit\r\n";
+         }
+         $header .= "\r\n"; // One blank line to separate header and body
+
+         $headerlength = strlen($header);
+      }     
+      
+      // Write the header
+      fputs ($fp, $header);
+
+      return $headerlength;
+   }
+
+   // Send the body
+   function writeBody ($fp, $passedBody) {
+      global $default_charset;
+
+      $attachmentlength = 0;
+      
+      if (isMultipart()) {
+         $body = "--".mimeBoundary()."\r\n";
+
+         if ($default_charset != "")
+            $body .= "Content-Type: text/plain; charset=$default_charset\r\n";
+         else 
+            $body .= "Content-Type: text/plain\r\n";
+
+         $body .= "Content-Transfer-Encoding: 8bit\r\n\r\n";
+         $body .= sqStripSlashes($passedBody) . "\r\n";
+         fputs ($fp, $body);
+
+         $attachmentlength = attachFiles($fp);
+
+         $postbody .= "\r\n--".mimeBoundary()."--\r\n\r\n";
+         fputs ($fp, $postbody);
+      } else {
+         $body = sqStripSlashes($passedBody) . "\r\n";
+         fputs ($fp, $body);
+         $postbody = "\r\n";
+         fputs ($fp, $postbody);
+      }
+
+      return (strlen($body) + strlen($postbody) + $attachmentlength);
+   }
+
+   // Send mail using the sendmail command
+   function sendSendmail($t, $c, $b, $subject, $body, $more_headers) {
+      global $sendmail_path, $username, $domain;
+
+      // open pipe to sendmail
+      $fp = popen (escapeshellcmd("$sendmail_path -t -f$username@$domain"), "w");
+      
+      $headerlength = write822Header ($fp, $t, $c, $b, $subject, $more_headers);
+      $bodylength = writeBody($fp, $body);
+
+      pclose($fp);
+
+      return ($headerlength + $bodylength);
+   }
+
    function smtpReadData($smtpConnection) {
       $read = fgets($smtpConnection, 1024);
       $counter = 0;
       }
    }
 
-   function sendMessage($smtpServerAddress, $smtpPort, $username, $domain, $t, $c, $b, $subject, $body, $version) {
-      include("../config/config.php");
+   function sendSMTP($t, $c, $b, $subject, $body, $more_headers) {
+      global $username, $domain, $version, $smtpServerAddress, $smtpPort,
+         $data_dir, $color;
 
       $to = parseAddrs($t);
       $cc = parseAddrs($c);
       $bcc = parseAddrs($b);
-      $body = stripslashes($body);
-      $from_addr = "$username@$domain";
-      $reply_to = getPref($data_dir, $username, "reply_to");
-      $from = getPref($data_dir, $username, "full_name");
+      $from_addr = getPref($data_dir, $username, "email_address");
+
+
+      /*
+       *  A patch from Bill Thousand <billyt@claritytech.com>
+       *
+       *  "I don't know if anyone else needs this or not, but it totally makes squirrelmail usable for us.
+       *  This quick patch checks the username and from address for the domain information.  We use
+       *  a virtual domain patch for our imap server that allows multiple domains by using username@domain.com
+       *  as the login username."
+       */
+      if ($from_addr == "") {
+         if (strstr($username, "@")) {
+            $from_addr = $username;
+            $address_pieces = explode("@",$username);
+            $domain = $address_pieces[1];
+         } else {
+            $from_addr = "$username@$domain";
+         }
+      } else {
+         // If the From Address is specified, use the domain in the from
+         // address if it's there.
+         if (strstr($from_addr, "@")) {
+            $address_pieces = explode("@", $from_addr);
+            $domain = $address_pieces[1];
+         }
+      }
+      /*
+       *  End patch from Bill Thousand
+       */
 
-      if ($from == "")
-         $from = "<$from_addr>";
-      else
-         $from = $from . " <$from_addr>";
 
       $smtpConnection = fsockopen($smtpServerAddress, $smtpPort, $errorNumber, $errorString);
       if (!$smtpConnection) {
          echo "$errorNumber : $errorString<br>";
          exit;
       }
-      $tmp = nl2br(htmlspecialchars(fgets($smtpConnection, 1024)));
-      errorCheck($tmp);
+      $tmp = fgets($smtpConnection, 1024);
+      errorCheck($tmp, $smtpConnection);
 
       $to_list = getLineOfAddrs($to);
       $cc_list = getLineOfAddrs($cc);
 
       /** Lets introduce ourselves */
-      fputs($smtpConnection, "HELO $domain\n");
-      $tmp = nl2br(htmlspecialchars(fgets($smtpConnection, 1024)));
-      errorCheck($tmp);
+      fputs($smtpConnection, "HELO $domain\r\n");
+      $tmp = fgets($smtpConnection, 1024);
+      errorCheck($tmp, $smtpConnection);
 
       /** Ok, who is sending the message? */
-      fputs($smtpConnection, "MAIL FROM:<$from_addr>\n");
-      $tmp = nl2br(htmlspecialchars(fgets($smtpConnection, 1024)));
-      errorCheck($tmp);
+      fputs($smtpConnection, "MAIL FROM:<$from_addr>\r\n");
+      $tmp = fgets($smtpConnection, 1024);
+      errorCheck($tmp, $smtpConnection);
 
       /** send who the recipients are */
       for ($i = 0; $i < count($to); $i++) {
-         fputs($smtpConnection, "RCPT TO:<$to[$i]>\n");
-         $tmp = nl2br(htmlspecialchars(fgets($smtpConnection, 1024)));
-         errorCheck($tmp);
+         fputs($smtpConnection, "RCPT TO:<$to[$i]>\r\n");
+         $tmp = fgets($smtpConnection, 1024);
+         errorCheck($tmp, $smtpConnection);
       }
       for ($i = 0; $i < count($cc); $i++) {
-         fputs($smtpConnection, "RCPT TO:<$cc[$i]>\n");
-         $tmp = nl2br(htmlspecialchars(fgets($smtpConnection, 1024)));
-         errorCheck($tmp);
+         fputs($smtpConnection, "RCPT TO:<$cc[$i]>\r\n");
+         $tmp = fgets($smtpConnection, 1024);
+         errorCheck($tmp, $smtpConnection);
       }
       for ($i = 0; $i < count($bcc); $i++) {
-         fputs($smtpConnection, "RCPT TO:<$bcc[$i]>\n");
-         $tmp = nl2br(htmlspecialchars(fgets($smtpConnection, 1024)));
-         errorCheck($tmp);
+         fputs($smtpConnection, "RCPT TO:<$bcc[$i]>\r\n");
+         $tmp = fgets($smtpConnection, 1024);
+         errorCheck($tmp, $smtpConnection);
       }
 
       /** Lets start sending the actual message */
-      fputs($smtpConnection, "DATA\n");
-      $tmp = nl2br(htmlspecialchars(fgets($smtpConnection, 1024)));
-      errorCheck($tmp);
+      fputs($smtpConnection, "DATA\r\n");
+      $tmp = fgets($smtpConnection, 1024);
+      errorCheck($tmp, $smtpConnection);
 
-      fputs($smtpConnection, "Subject: $subject\n"); // Subject
-      fputs($smtpConnection, "From: $from\n"); // Subject
-      fputs($smtpConnection, "To: $to_list\n");    // Who it's TO
+      // Send the message
+      $headerlength = write822Header ($smtpConnection, $t, $c, $b, $subject, $more_headers);
+      $bodylength = writeBody($smtpConnection, $body);
 
-      if ($cc_list) {
-         fputs($smtpConnection, "Cc: $cc_list\n"); // Who the CCs are
-      }
-      fputs($smtpConnection, "X-Mailer: SquirrelMail (version $version)\n"); // Identify SquirrelMail
-      fputs($smtpConnection, "MIME-Version: 1.0\n");
-      fputs($smtpConnection, "Content-Type: text/plain\n");
-      if ($reply_to != "")
-         fputs($smtpConnection, "Reply-To: $reply_to\n");
-
-
-      $body_ary = explode("\n", trim($body));
-      $body = "";
-      for ($i = 0; $i < count($body_ary); $i++) {
-         if ($body_ary[$i] == ".")
-            $body_ary[$i] = ".";
-         $body .= $body_ary[$i] . "\n";
-      }
-      fputs($smtpConnection, "$body\n"); // send the body of the message
-
-      fputs($smtpConnection, ".\n"); // end the DATA part
-      $tmp = nl2br(htmlspecialchars(fgets($smtpConnection, 1024)));
-      $num = errorCheck($tmp);
+      fputs($smtpConnection, ".\r\n"); // end the DATA part
+      $tmp = fgets($smtpConnection, 1024);
+      $num = errorCheck($tmp, $smtpConnection);
       if ($num != 250) {
-         echo "<HTML><BODY BGCOLOR=FFFFFF>ERROR<BR>Message not sent!<BR>Reason given: $tmp<BR></BODY></HTML>";
+        $tmp = nl2br(htmlspecialchars($tmp));
+         echo "ERROR<BR>Message not sent!<BR>Reason given: $tmp<BR></BODY></HTML>";
       }
 
-      fputs($smtpConnection, "QUIT\n"); // log off
+      fputs($smtpConnection, "QUIT\r\n"); // log off
 
       fclose($smtpConnection);
+
+      return ($headerlength + $bodylength);
    }
 
 
-   function errorCheck($line) {
+   function errorCheck($line, $smtpConnection) {
+      global $page_header_php;
+      global $color;
+      if (!isset($page_header_php)) {
+         include "../functions/page_header.php";
+      }
+      
+      // 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
 
          case 554:   $message = "Transaction failed";
                      $status = 0;
                      break;
-         default:    $message = "Unknown response: $line";
+         default:    $message = "Unknown response: ". nl2br(htmlspecialchars($lines));
                      $status = 0;
                      $error_num = "001";
                      break;
       }
 
       if ($status == 0) {
-         echo "<HTML><BODY BGCOLOR=FFFFFF>";
+         displayPageHeader($color, "None");
          echo "<TT>";
-         echo "<BR><B>ERROR</B><BR><BR>";
+         echo "<br><b><font color=\"$color[1]\">ERROR</font></b><br><br>";
          echo "&nbsp;&nbsp;&nbsp;<B>Error Number: </B>$err_num<BR>";
          echo "&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<B>Reason: </B>$message<BR>";
-         echo "<B>Server Response: </B>$line<BR>";
+         $lines = nl2br(htmlspecialchars($lines));
+         echo "<B>Server Response: </B>$lines<BR>";
          echo "<BR>MAIL NOT SENT";
          echo "</TT></BODY></HTML>";
          exit;
       }
       return $err_num;
    }
-?>
\ No newline at end of file
+
+   function sendMessage($t, $c, $b, $subject, $body, $reply_id) {
+      global $useSendmail, $msg_id, $is_reply, $mailbox;
+      global $data_dir, $username, $domain, $key, $version, $sent_folder, $imapServerAddress, $imapPort;
+      $more_headers = Array();
+
+      $imap_stream = sqimap_login($username, $key, $imapServerAddress, $imapPort, 1);
+
+      if ($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.
+         $hdr = sqimap_get_small_header ($imap_stream, $reply_id, false);
+         if(strlen($hdr->message_id) > 2) {
+            $more_headers["In-Reply-To"] = $hdr->message_id;
+            $more_headers["References"]  = $hdr->message_id;
+         }
+         sqimap_mailbox_close($imap_stream);
+      }
+      
+      if ($useSendmail==true) {  
+         $length = sendSendmail($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, $more_headers);
+         writeBody ($imap_stream, $body); 
+         sqimap_append_done ($imap_stream);
+      }   
+      sqimap_logout($imap_stream); 
+      // Delete the files uploaded for attaching (if any).
+      deleteAttachments();
+   }
+?>