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 sendMessage($username, $domain, $t, $c, $b, $subject, $body, $version) {
   9       include("../config/config.php");
  10
  11       if ($useSendmail==true) {
  12          sendSendmail($username, $domain, $t, $c, $b, $subject, $body, $version);
  13       } else {
  14          sendSMTP($username, $domain, $t, $c, $b, $subject, $body, $version);
  15       }
  16
  17    }
  18
  19    // Send mail using the sendmail command
  20    function sendSendmail($username, $domain, $t, $c, $b, $subject, $body, $version) {
  21       include("../config/config.php");
  22
  23       // This is pretty much equal to the code in sendSMTP
  24       $to = parseAddrs($t);
  25       $cc = parseAddrs($c);
  26       $bcc = parseAddrs($b);
  27       $from_addr = "$username@$domain";
  28       $reply_to = getPref($data_dir, $username, "reply_to");
  29       $from = getPref($data_dir, $username, "full_name");
  30
  31       $to_list = getLineOfAddrs($to);
  32       $cc_list = getLineOfAddrs($cc);
  33       $bcc_list = getLineOfAddrs($bcc);
  34
  35       if ($from == "")
  36          $from = "<$from_addr>";
  37       else
  38          $from = $from . " <$from_addr>";
  39
  40       // open pipe to sendmail
  41       $fp = popen ("$sendmail_path -t -f$from_addr", "w");
  42
  43       fputs($fp, "Subject: $subject\n"); // Subject
  44       fputs($fp, "From: $from\n"); // Subject
  45       fputs($fp, "To: $to_list\n");    // Who it's TO
  46
  47       if ($cc_list) {
  48          fputs($fp, "Cc: $cc_list\n"); // Who the CCs are
  49       }
  50       if ($bcc_list) {
  51          fputs($fp, "Bcc: $bcc_list\n"); // BCCs is removed from header by sendmail
  52       }
  53       fputs($fp, "X-Mailer: SquirrelMail (version $version)\n"); // Identify SquirrelMail
  54       fputs($fp, "MIME-Version: 1.0\n");
  55       fputs($fp, "Content-Type: text/plain\n");
  56       if ($reply_to != "")
  57          fputs($fp, "Reply-To: $reply_to\n");
  58
  59       fputs($fp, "\n$body\n"); // send the body of the message
  60
  61       pclose($fp);
  62    }
  63
  64    function smtpReadData($smtpConnection) {
  65       $read = fgets($smtpConnection, 1024);
  66       $counter = 0;
  67       while ($read) {
  68          echo $read . "<BR>";
  69          $data[$counter] = $read;
  70          $read = fgets($smtpConnection, 1024);
  71          $counter++;
  72       }
  73    }
  74
  75    function sendSMTP($username, $domain, $t, $c, $b, $subject, $body, $version) {
  76       include("../config/config.php");
  77
  78       $to = parseAddrs($t);
  79       $cc = parseAddrs($c);
  80       $bcc = parseAddrs($b);
  81       $from_addr = "$username@$domain";
  82       $reply_to = getPref($data_dir, $username, "reply_to");
  83       $from = getPref($data_dir, $username, "full_name");
  84
  85       if ($from == "")
  86          $from = "<$from_addr>";
  87       else
  88          $from = $from . " <$from_addr>";
  89
  90       $smtpConnection = fsockopen($smtpServerAddress, $smtpPort, $errorNumber, $errorString);
  91       if (!$smtpConnection) {
  92          echo "Error connecting to SMTP Server.<br>";
  93          echo "$errorNumber : $errorString<br>";
  94          exit;
  95       }
  96       $tmp = nl2br(htmlspecialchars(fgets($smtpConnection, 1024)));
  97       errorCheck($tmp);
  98
  99       $to_list = getLineOfAddrs($to);
 100       $cc_list = getLineOfAddrs($cc);
 101
 102       /** Lets introduce ourselves */
 103       fputs($smtpConnection, "HELO $domain\n");
 104       $tmp = nl2br(htmlspecialchars(fgets($smtpConnection, 1024)));
 105       errorCheck($tmp);
 106
 107       /** Ok, who is sending the message? */
 108       fputs($smtpConnection, "MAIL FROM:<$from_addr>\n");
 109       $tmp = nl2br(htmlspecialchars(fgets($smtpConnection, 1024)));
 110       errorCheck($tmp);
 111
 112       /** send who the recipients are */
 113       for ($i = 0; $i < count($to); $i++) {
 114          fputs($smtpConnection, "RCPT TO:<$to[$i]>\n");
 115          $tmp = nl2br(htmlspecialchars(fgets($smtpConnection, 1024)));
 116          errorCheck($tmp);
 117       }
 118       for ($i = 0; $i < count($cc); $i++) {
 119          fputs($smtpConnection, "RCPT TO:<$cc[$i]>\n");
 120          $tmp = nl2br(htmlspecialchars(fgets($smtpConnection, 1024)));
 121          errorCheck($tmp);
 122       }
 123       for ($i = 0; $i < count($bcc); $i++) {
 124          fputs($smtpConnection, "RCPT TO:<$bcc[$i]>\n");
 125          $tmp = nl2br(htmlspecialchars(fgets($smtpConnection, 1024)));
 126          errorCheck($tmp);
 127       }
 128
 129       /** Lets start sending the actual message */
 130       fputs($smtpConnection, "DATA\n");
 131       $tmp = nl2br(htmlspecialchars(fgets($smtpConnection, 1024)));
 132       errorCheck($tmp);
 133
 134       fputs($smtpConnection, "Subject: $subject\n"); // Subject
 135       fputs($smtpConnection, "From: $from\n"); // Subject
 136       fputs($smtpConnection, "To: $to_list\n");    // Who it's TO
 137
 138       if ($cc_list) {
 139          fputs($smtpConnection, "Cc: $cc_list\n"); // Who the CCs are
 140       }
 141       fputs($smtpConnection, "X-Mailer: SquirrelMail (version $version)\n"); // Identify SquirrelMail
 142       fputs($smtpConnection, "MIME-Version: 1.0\n");
 143       fputs($smtpConnection, "Content-Type: text/plain\n");
 144       if ($reply_to != "")
 145          fputs($smtpConnection, "Reply-To: $reply_to\n");
 146
 147       fputs($smtpConnection, "$body\n"); // send the body of the message
 148
 149       fputs($smtpConnection, ".\n"); // end the DATA part
 150       $tmp = nl2br(htmlspecialchars(fgets($smtpConnection, 1024)));
 151       $num = errorCheck($tmp);
 152       if ($num != 250) {
 153          echo "<HTML><BODY BGCOLOR=FFFFFF>ERROR<BR>Message not sent!<BR>Reason given: $tmp<BR></BODY></HTML>";
 154       }
 155
 156       fputs($smtpConnection, "QUIT\n"); // log off
 157
 158       fclose($smtpConnection);
 159    }
 160
 161
 162    function errorCheck($line) {
 163       // Status:  0 = fatal
 164       //          5 = ok
 165
 166       $err_num = substr($line, 0, strpos($line, " "));
 167       switch ($err_num) {
 168          case 500:   $message = "Syntax error; command not recognized";
 169                      $status = 0;
 170                      break;
 171          case 501:   $message = "Syntax error in parameters or arguments";
 172                      $status = 0;
 173                      break;
 174          case 502:   $message = "Command not implemented";
 175                      $status = 0;
 176                      break;
 177          case 503:   $message = "Bad sequence of commands";
 178                      $status = 0;
 179                      break;
 180          case 504:   $message = "Command parameter not implemented";
 181                      $status = 0;
 182                      break;
 183
 184
 185          case 211:   $message = "System status, or system help reply";
 186                      $status = 5;
 187                      break;
 188          case 214:   $message = "Help message";
 189                      $status = 5;
 190                      break;
 191
 192
 193          case 220:   $message = "Service ready";
 194                      $status = 5;
 195                      break;
 196          case 221:   $message = "Service closing transmission channel";
 197                      $status = 5;
 198                      break;
 199          case 421:   $message = "Service not available, closing chanel";
 200                      $status = 0;
 201                      break;
 202
 203
 204          case 250:   $message = "Requested mail action okay, completed";
 205                      $status = 5;
 206                      break;
 207          case 251:   $message = "User not local; will forward";
 208                      $status = 5;
 209                      break;
 210          case 450:   $message = "Requested mail action not taken:  mailbox unavailable";
 211                      $status = 0;
 212                      break;
 213          case 550:   $message = "Requested action not taken:  mailbox unavailable";
 214                      $status = 0;
 215                      break;
 216          case 451:   $message = "Requested action aborted:  error in processing";
 217                      $status = 0;
 218                      break;
 219          case 551:   $message = "User not local; please try forwarding";
 220                      $status = 0;
 221                      break;
 222          case 452:   $message = "Requested action not taken:  insufficient system storage";
 223                      $status = 0;
 224                      break;
 225          case 552:   $message = "Requested mail action aborted:  exceeding storage allocation";
 226                      $status = 0;
 227                      break;
 228          case 553:   $message = "Requested action not taken: mailbox name not allowed";
 229                      $status = 0;
 230                      break;
 231          case 354:   $message = "Start mail input; end with .";
 232                      $status = 5;
 233                      break;
 234          case 554:   $message = "Transaction failed";
 235                      $status = 0;
 236                      break;
 237          default:    $message = "Unknown response: $line";
 238                      $status = 0;
 239                      $error_num = "001";
 240                      break;
 241       }
 242
 243       if ($status == 0) {
 244          echo "<HTML><BODY BGCOLOR=FFFFFF>";
 245          echo "<TT>";
 246          echo "<BR><B>ERROR</B><BR><BR>";
 247          echo "&nbsp;&nbsp;&nbsp;<B>Error Number: </B>$err_num<BR>";
 248          echo "&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<B>Reason: </B>$message<BR>";
 249          echo "<B>Server Response: </B>$line<BR>";
 250          echo "<BR>MAIL NOT SENT";
 251          echo "</TT></BODY></HTML>";
 252          exit;
 253       }
 254       return $err_num;
 255    }
 256 ?>