functions/smtp.php

   1 <?
   2    /** smtp.php
   3     **
   4     ** This contains all the functions needed to send messages through
   5     ** an smtp server.
   6     **/
   7
   8    function smtpReadData($smtpConnection) {
   9       $read = fgets($smtpConnection, 1024);
  10       $counter = 0;
  11       while ($read) {
  12          echo $read . "<BR>";
  13          $data[$counter] = $read;
  14          $read = fgets($smtpConnection, 1024);
  15          $counter++;
  16       }
  17    }
  18
  19    function sendMessage($smtpServerAddress, $smtpPort, $username, $domain, $t, $c, $b, $subject, $body, $version) {
  20       include("../config/config.php");
  21
  22       $to = parseAddrs($t);
  23       $cc = parseAddrs($c);
  24       $bcc = parseAddrs($b);
  25       $body = stripslashes($body);
  26       $from_addr = "$username@$domain";
  27       $reply_to = getPref($data_dir, $username, "reply_to");
  28       $from = getPref($data_dir, $username, "full_name");
  29
  30       if ($from == "")
  31          $from = "<$from_addr>";
  32       else
  33          $from = $from . " <$from_addr>";
  34
  35       $smtpConnection = fsockopen($smtpServerAddress, $smtpPort, $errorNumber, $errorString);
  36       if (!$smtpConnection) {
  37          echo "Error connecting to SMTP Server.<br>";
  38          echo "$errorNumber : $errorString<br>";
  39          exit;
  40       }
  41       $tmp = nl2br(htmlspecialchars(fgets($smtpConnection, 1024)));
  42       errorCheck($tmp);
  43
  44       $to_list = getLineOfAddrs($to);
  45       $cc_list = getLineOfAddrs($cc);
  46
  47       /** Lets introduce ourselves */
  48       fputs($smtpConnection, "HELO $domain\n");
  49       $tmp = nl2br(htmlspecialchars(fgets($smtpConnection, 1024)));
  50       errorCheck($tmp);
  51
  52       /** Ok, who is sending the message? */
  53       fputs($smtpConnection, "MAIL FROM:<$from_addr>\n");
  54       $tmp = nl2br(htmlspecialchars(fgets($smtpConnection, 1024)));
  55       errorCheck($tmp);
  56
  57       /** send who the recipients are */
  58       for ($i = 0; $i < count($to); $i++) {
  59          fputs($smtpConnection, "RCPT TO:<$to[$i]>\n");
  60          $tmp = nl2br(htmlspecialchars(fgets($smtpConnection, 1024)));
  61          errorCheck($tmp);
  62       }
  63       for ($i = 0; $i < count($cc); $i++) {
  64          fputs($smtpConnection, "RCPT TO:<$cc[$i]>\n");
  65          $tmp = nl2br(htmlspecialchars(fgets($smtpConnection, 1024)));
  66          errorCheck($tmp);
  67       }
  68       for ($i = 0; $i < count($bcc); $i++) {
  69          fputs($smtpConnection, "RCPT TO:<$bcc[$i]>\n");
  70          $tmp = nl2br(htmlspecialchars(fgets($smtpConnection, 1024)));
  71          errorCheck($tmp);
  72       }
  73
  74       /** Lets start sending the actual message */
  75       fputs($smtpConnection, "DATA\n");
  76       $tmp = nl2br(htmlspecialchars(fgets($smtpConnection, 1024)));
  77       errorCheck($tmp);
  78
  79       fputs($smtpConnection, "Subject: $subject\n"); // Subject
  80       fputs($smtpConnection, "From: $from\n"); // Subject
  81       fputs($smtpConnection, "To: $to_list\n");    // Who it's TO
  82
  83       if ($cc_list) {
  84          fputs($smtpConnection, "Cc: $cc_list\n"); // Who the CCs are
  85       }
  86       fputs($smtpConnection, "X-Mailer: SquirrelMail (version $version)\n"); // Identify SquirrelMail
  87       fputs($smtpConnection, "MIME-Version: 1.0\n");
  88       fputs($smtpConnection, "Content-Type: text/plain\n");
  89       if ($reply_to != "")
  90          fputs($smtpConnection, "Reply-To: $reply_to\n");
  91
  92
  93       $body_ary = explode("\n", trim($body));
  94       $body = "";
  95       for ($i = 0; $i < count($body_ary); $i++) {
  96          if ($body_ary[$i] == ".")
  97             $body_ary[$i] = ".";
  98          $body .= $body_ary[$i] . "\n";
  99       }
 100       fputs($smtpConnection, "$body\n"); // send the body of the message
 101
 102       fputs($smtpConnection, ".\n"); // end the DATA part
 103       $tmp = nl2br(htmlspecialchars(fgets($smtpConnection, 1024)));
 104       $num = errorCheck($tmp);
 105       if ($num != 250) {
 106          echo "<HTML><BODY BGCOLOR=FFFFFF>ERROR<BR>Message not sent!<BR>Reason given: $tmp<BR></BODY></HTML>";
 107       }
 108
 109       fputs($smtpConnection, "QUIT\n"); // log off
 110
 111       fclose($smtpConnection);
 112    }
 113
 114
 115    function errorCheck($line) {
 116       // Status:  0 = fatal
 117       //          5 = ok
 118
 119       $err_num = substr($line, 0, strpos($line, " "));
 120       switch ($err_num) {
 121          case 500:   $message = "Syntax error; command not recognized";
 122                      $status = 0;
 123                      break;
 124          case 501:   $message = "Syntax error in parameters or arguments";
 125                      $status = 0;
 126                      break;
 127          case 502:   $message = "Command not implemented";
 128                      $status = 0;
 129                      break;
 130          case 503:   $message = "Bad sequence of commands";
 131                      $status = 0;
 132                      break;
 133          case 504:   $message = "Command parameter not implemented";
 134                      $status = 0;
 135                      break;
 136
 137
 138          case 211:   $message = "System status, or system help reply";
 139                      $status = 5;
 140                      break;
 141          case 214:   $message = "Help message";
 142                      $status = 5;
 143                      break;
 144
 145
 146          case 220:   $message = "Service ready";
 147                      $status = 5;
 148                      break;
 149          case 221:   $message = "Service closing transmission channel";
 150                      $status = 5;
 151                      break;
 152          case 421:   $message = "Service not available, closing chanel";
 153                      $status = 0;
 154                      break;
 155
 156
 157          case 250:   $message = "Requested mail action okay, completed";
 158                      $status = 5;
 159                      break;
 160          case 251:   $message = "User not local; will forward";
 161                      $status = 5;
 162                      break;
 163          case 450:   $message = "Requested mail action not taken:  mailbox unavailable";
 164                      $status = 0;
 165                      break;
 166          case 550:   $message = "Requested action not taken:  mailbox unavailable";
 167                      $status = 0;
 168                      break;
 169          case 451:   $message = "Requested action aborted:  error in processing";
 170                      $status = 0;
 171                      break;
 172          case 551:   $message = "User not local; please try forwarding";
 173                      $status = 0;
 174                      break;
 175          case 452:   $message = "Requested action not taken:  insufficient system storage";
 176                      $status = 0;
 177                      break;
 178          case 552:   $message = "Requested mail action aborted:  exceeding storage allocation";
 179                      $status = 0;
 180                      break;
 181          case 553:   $message = "Requested action not taken: mailbox name not allowed";
 182                      $status = 0;
 183                      break;
 184          case 354:   $message = "Start mail input; end with .";
 185                      $status = 5;
 186                      break;
 187          case 554:   $message = "Transaction failed";
 188                      $status = 0;
 189                      break;
 190          default:    $message = "Unknown response: $line";
 191                      $status = 0;
 192                      $error_num = "001";
 193                      break;
 194       }
 195
 196       if ($status == 0) {
 197          echo "<HTML><BODY BGCOLOR=FFFFFF>";
 198          echo "<TT>";
 199          echo "<BR><B>ERROR</B><BR><BR>";
 200          echo "&nbsp;&nbsp;&nbsp;<B>Error Number: </B>$err_num<BR>";
 201          echo "&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<B>Reason: </B>$message<BR>";
 202          echo "<B>Server Response: </B>$line<BR>";
 203          echo "<BR>MAIL NOT SENT";
 204          echo "</TT></BODY></HTML>";
 205          exit;
 206       }
 207       return $err_num;
 208    }
 209 ?>