| 1 | <?php |
| 2 | /** |
| 3 | * Deliver_SMTP.class.php |
| 4 | * |
| 5 | * Copyright (c) 1999-2002 The SquirrelMail Project Team |
| 6 | * Licensed under the GNU GPL. For full terms see the file COPYING. |
| 7 | * |
| 8 | * Delivery backend for the Deliver class. |
| 9 | * |
| 10 | * $Id$ |
| 11 | */ |
| 12 | |
| 13 | require_once('../class/deliver/Deliver.class.php'); |
| 14 | |
| 15 | class Deliver_SMTP extends Deliver { |
| 16 | |
| 17 | function preWriteToStream(&$s) { |
| 18 | if ($s) { |
| 19 | if ($s{0} == '.') $s = '.' . $s; |
| 20 | $s = str_replace("\n.","\n..",$s); |
| 21 | } |
| 22 | } |
| 23 | |
| 24 | function initStream($message, $domain, $length=0, $host='', $port='', $user='', $pass='', $authpop=false) { |
| 25 | |
| 26 | if ($authpop) { |
| 27 | $this->authPop($host, '', $user, $pass); |
| 28 | } |
| 29 | |
| 30 | $rfc822_header = $message->rfc822_header; |
| 31 | $from = $rfc822_header->from[0]; |
| 32 | $to = $rfc822_header->to; |
| 33 | $cc = $rfc822_header->cc; |
| 34 | $bcc = $rfc822_header->bcc; |
| 35 | |
| 36 | $stream = fsockopen($host, $port, $errorNumber, $errorString); |
| 37 | if (!$stream) { |
| 38 | $this->dlv_msg = $errorString; |
| 39 | $this->dlv_ret_nr = $errorNumber; |
| 40 | return(0); |
| 41 | } |
| 42 | $tmp = fgets($stream, 1024); |
| 43 | if ($this->errorCheck($tmp, $stream)) { |
| 44 | return(0); |
| 45 | } |
| 46 | |
| 47 | /* Lets introduce ourselves */ |
| 48 | if (! isset ($use_authenticated_smtp) |
| 49 | || $use_authenticated_smtp == false) { |
| 50 | fputs($stream, "HELO $domain\r\n"); |
| 51 | $tmp = fgets($stream, 1024); |
| 52 | if ($this->errorCheck($tmp, $stream)) { |
| 53 | return(0); |
| 54 | } |
| 55 | } else { |
| 56 | fputs($stream, "EHLO $domain\r\n"); |
| 57 | $tmp = fgets($stream, 1024); |
| 58 | if ($this->errorCheck($tmp, $stream)) { |
| 59 | return(0); |
| 60 | } |
| 61 | fputs($stream, "AUTH LOGIN\r\n"); |
| 62 | $tmp = fgets($stream, 1024); |
| 63 | |
| 64 | if ($this->errorCheck($tmp, $stream)) { |
| 65 | return(0); |
| 66 | } |
| 67 | fputs($stream, base64_encode ($user) . "\r\n"); |
| 68 | $tmp = fgets($stream, 1024); |
| 69 | if ($this->errorCheck($tmp, $stream)) { |
| 70 | return(0); |
| 71 | } |
| 72 | |
| 73 | fputs($stream, base64_encode($pass) . "\r\n"); |
| 74 | $tmp = fgets($stream, 1024); |
| 75 | if ($this->errorCheck($tmp, $stream)) { |
| 76 | return(0); |
| 77 | } |
| 78 | } |
| 79 | |
| 80 | /* Ok, who is sending the message? */ |
| 81 | fputs($stream, 'MAIL FROM: <'.$from->mailbox.'@'.$from->host.">\r\n"); |
| 82 | $tmp = fgets($stream, 1024); |
| 83 | if ($this->errorCheck($tmp, $stream)) { |
| 84 | return(0); |
| 85 | } |
| 86 | |
| 87 | /* send who the recipients are */ |
| 88 | for ($i = 0, $cnt = count($to); $i < $cnt; $i++) { |
| 89 | if (!$to[$i]->host) $to[$i]->host = $domain; |
| 90 | if ($to[$i]->mailbox) { |
| 91 | fputs($stream, 'RCPT TO: <'.$to[$i]->mailbox.'@'.$to[$i]->host.">\r\n"); |
| 92 | $tmp = fgets($stream, 1024); |
| 93 | if ($this->errorCheck($tmp, $stream)) { |
| 94 | return(0); |
| 95 | } |
| 96 | } |
| 97 | } |
| 98 | |
| 99 | for ($i = 0, $cnt = count($cc); $i < $cnt; $i++) { |
| 100 | if (!$cc[$i]->host) $cc[$i]->host = $domain; |
| 101 | if ($cc[$i]->mailbox) { |
| 102 | fputs($stream, 'RCPT TO: <'.$cc[$i]->mailbox.'@'.$cc[$i]->host.">\r\n"); |
| 103 | $tmp = fgets($stream, 1024); |
| 104 | if ($this->errorCheck($tmp, $stream)) { |
| 105 | return(0); |
| 106 | } |
| 107 | } |
| 108 | } |
| 109 | for ($i = 0, $cnt = count($bcc); $i < $cnt; $i++) { |
| 110 | if (!$bcc[$i]->host) $bcc[$i]->host = $domain; |
| 111 | if ($bcc[$i]->mailbox) { |
| 112 | fputs($stream, 'RCPT TO: <'.$bcc[$i]->mailbox.'@'.$bcc[$i]->host.">\r\n"); |
| 113 | $tmp = fgets($stream, 1024); |
| 114 | if ($this->errorCheck($tmp, $stream)) { |
| 115 | return(0); |
| 116 | } |
| 117 | } |
| 118 | } |
| 119 | /* Lets start sending the actual message */ |
| 120 | fputs($stream, "DATA\r\n"); |
| 121 | $tmp = fgets($stream, 1024); |
| 122 | if ($this->errorCheck($tmp, $stream)) { |
| 123 | return(0); |
| 124 | } |
| 125 | return $stream; |
| 126 | } |
| 127 | |
| 128 | function finalizeStream($stream) { |
| 129 | fputs($stream, ".\r\n"); /* end the DATA part */ |
| 130 | $tmp = fgets($stream, 1024); |
| 131 | $this->errorCheck($tmp, $stream); |
| 132 | if ($this->dlv_ret_nr != 250) { |
| 133 | return(0); |
| 134 | } |
| 135 | fputs($stream, "QUIT\r\n"); /* log off */ |
| 136 | fclose($stream); |
| 137 | return true; |
| 138 | } |
| 139 | |
| 140 | function errorCheck($line, $smtpConnection) { |
| 141 | global $color, $compose_new_win; |
| 142 | |
| 143 | /* Read new lines on a multiline response */ |
| 144 | $lines = $line; |
| 145 | while(ereg("^[0-9]+-", $line)) { |
| 146 | $line = fgets($smtpConnection, 1024); |
| 147 | $lines .= $line; |
| 148 | } |
| 149 | /* Status: 0 = fatal |
| 150 | * 5 = ok |
| 151 | */ |
| 152 | $err_num = substr($line, 0, strpos($line, " ")); |
| 153 | switch ($err_num) { |
| 154 | case 500: $message = 'Syntax error; command not recognized'; |
| 155 | $status = 0; |
| 156 | break; |
| 157 | case 501: $message = 'Syntax error in parameters or arguments'; |
| 158 | $status = 0; |
| 159 | break; |
| 160 | case 502: $message = 'Command not implemented'; |
| 161 | $status = 0; |
| 162 | break; |
| 163 | case 503: $message = 'Bad sequence of commands'; |
| 164 | $status = 0; |
| 165 | break; |
| 166 | case 504: $message = 'Command parameter not implemented'; |
| 167 | $status = 0; |
| 168 | break; |
| 169 | case 211: $message = 'System status, or system help reply'; |
| 170 | $status = 5; |
| 171 | break; |
| 172 | case 214: $message = 'Help message'; |
| 173 | $status = 5; |
| 174 | break; |
| 175 | case 220: $message = 'Service ready'; |
| 176 | $status = 5; |
| 177 | break; |
| 178 | case 221: $message = 'Service closing transmission channel'; |
| 179 | $status = 5; |
| 180 | break; |
| 181 | case 421: $message = 'Service not available, closing chanel'; |
| 182 | $status = 0; |
| 183 | break; |
| 184 | case 235: return(5); |
| 185 | break; |
| 186 | case 250: $message = 'Requested mail action okay, completed'; |
| 187 | $status = 5; |
| 188 | break; |
| 189 | case 251: $message = 'User not local; will forward'; |
| 190 | $status = 5; |
| 191 | break; |
| 192 | case 334: return(5); break; |
| 193 | case 450: $message = 'Requested mail action not taken: mailbox unavailable'; |
| 194 | $status = 0; |
| 195 | break; |
| 196 | case 550: $message = 'Requested action not taken: mailbox unavailable'; |
| 197 | $status = 0; |
| 198 | break; |
| 199 | case 451: $message = 'Requested action aborted: error in processing'; |
| 200 | $status = 0; |
| 201 | break; |
| 202 | case 551: $message = 'User not local; please try forwarding'; |
| 203 | $status = 0; |
| 204 | break; |
| 205 | case 452: $message = 'Requested action not taken: insufficient system storage'; |
| 206 | $status = 0; |
| 207 | break; |
| 208 | case 552: $message = 'Requested mail action aborted: exceeding storage allocation'; |
| 209 | $status = 0; |
| 210 | break; |
| 211 | case 553: $message = 'Requested action not taken: mailbox name not allowed'; |
| 212 | $status = 0; |
| 213 | break; |
| 214 | case 354: $message = 'Start mail input; end with .'; |
| 215 | $status = 5; |
| 216 | break; |
| 217 | case 554: $message = 'Transaction failed'; |
| 218 | $status = 0; |
| 219 | break; |
| 220 | /* RFC 2554 */ |
| 221 | case 432: $message = 'A password transition is needed'; |
| 222 | $status = 0; |
| 223 | break; |
| 224 | case 534: $message = 'Authentication mechanism is too weak'; |
| 225 | $status = 0; |
| 226 | break; |
| 227 | case 538: $message = 'Encryption required for requested authentication mechanism'; |
| 228 | $status = 0; |
| 229 | break; |
| 230 | case 454: $message = 'Temmporary authentication failure'; |
| 231 | $status = 0; |
| 232 | break; |
| 233 | case 530: $message = 'Authentication required'; |
| 234 | $status = 0; |
| 235 | break; |
| 236 | /* end RFC2554 */ |
| 237 | default: $message = 'Unknown response: '. nl2br(htmlspecialchars($lines)); |
| 238 | $status = 0; |
| 239 | $err_num = '001'; |
| 240 | break; |
| 241 | } |
| 242 | $this->dlv_ret_nr = $err_num; |
| 243 | $this->dlv_msg = $message; |
| 244 | if ($status == 5) { |
| 245 | return false; |
| 246 | } |
| 247 | return true; |
| 248 | } |
| 249 | |
| 250 | function authPop($pop_server='', $pop_port='', $user, $pass) { |
| 251 | if (!$pop_port) { |
| 252 | $pop_port = 110; |
| 253 | } |
| 254 | if (!$pop_server) { |
| 255 | $pop_server = 'localhost'; |
| 256 | } |
| 257 | $popConnection = fsockopen($pop_server, $pop_port, $err_no, $err_str); |
| 258 | if (!$popConnection) { |
| 259 | error_log("Error connecting to POP Server ($pop_server:$pop_port)" |
| 260 | . " $err_no : $err_str"); |
| 261 | } else { |
| 262 | $tmp = fgets($popConnection, 1024); /* banner */ |
| 263 | if (!eregi("^\+OK", $tmp, $regs)) { |
| 264 | return(0); |
| 265 | } |
| 266 | fputs($popConnection, "USER $user\r\n"); |
| 267 | $tmp = fgets($popConnection, 1024); |
| 268 | if (!eregi("^\+OK", $tmp, $regs)) { |
| 269 | return(0); |
| 270 | } |
| 271 | fputs($popConnection, 'PASS ' . $pass . "\r\n"); |
| 272 | $tmp = fgets($popConnection, 1024); |
| 273 | if (!eregi("^\+OK", $tmp, $regs)) { |
| 274 | return(0); |
| 275 | } |
| 276 | fputs($popConnection, "QUIT\r\n"); /* log off */ |
| 277 | fclose($popConnection); |
| 278 | } |
| 279 | } |
| 280 | } |
| 281 | |
| 282 | ?> |