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1
<?php
2
/*~ class.smtp.php
3
.---------------------------------------------------------------------------.
4
|  Software: PHPMailer - PHP email class                                    |
5
|   Version: 2.0.3                                                          |
6
|   Contact: via sourceforge.net support pages (also www.codeworxtech.com)  |
7
|      Info: http://phpmailer.sourceforge.net                               |
8
|   Support: http://sourceforge.net/projects/phpmailer/                     |
9
| ------------------------------------------------------------------------- |
10
|    Author: Andy Prevost (project admininistrator)                         |
11
|    Author: Brent R. Matzelle (original founder)                           |
12
| Copyright (c) 2004-2007, Andy Prevost. All Rights Reserved.               |
13
| Copyright (c) 2001-2003, Brent R. Matzelle                                |
14
| ------------------------------------------------------------------------- |
15
|   License: Distributed under the Lesser General Public License (LGPL)     |
16
|            http://www.gnu.org/copyleft/lesser.html                        |
17
| This program is distributed in the hope that it will be useful - WITHOUT  |
18
| ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or     |
19
| FITNESS FOR A PARTICULAR PURPOSE.                                         |
20
| ------------------------------------------------------------------------- |
21
| We offer a number of paid services (www.codeworxtech.com):                |
22
| - Web Hosting on highly optimized fast and secure servers                 |
23
| - Technology Consulting                                                   |
24
| - Oursourcing (highly qualified programmers and graphic designers)        |
25
'---------------------------------------------------------------------------'
26

    
27
/**
28
 * SMTP is rfc 821 compliant and implements all the rfc 821 SMTP
29
 * commands except TURN which will always return a not implemented
30
 * error. SMTP also provides some utility methods for sending mail
31
 * to an SMTP server.
32
 * @package PHPMailer
33
 * @author Chris Ryan
34
 */
35

    
36
class SMTP
37
{
38
  /**
39
   *  SMTP server port
40
   *  @var int
41
   */
42
  var $SMTP_PORT = 25;
43

    
44
  /**
45
   *  SMTP reply line ending
46
   *  @var string
47
   */
48
  var $CRLF = "\r\n";
49

    
50
  /**
51
   *  Sets whether debugging is turned on
52
   *  @var bool
53
   */
54
  var $do_debug;       # the level of debug to perform
55

    
56
  /**
57
   *  Sets VERP use on/off (default is off)
58
   *  @var bool
59
   */
60
  var $do_verp = false;
61

    
62
  /**#@+
63
   * @access private
64
   */
65
  var $smtp_conn;      # the socket to the server
66
  var $error;          # error if any on the last call
67
  var $helo_rply;      # the reply the server sent to us for HELO
68
  /**#@-*/
69

    
70
  /**
71
   * Initialize the class so that the data is in a known state.
72
   * @access public
73
   * @return void
74
   */
75
  function SMTP() {
76
    $this->smtp_conn = 0;
77
    $this->error = null;
78
    $this->helo_rply = null;
79

    
80
    $this->do_debug = 0;
81
  }
82

    
83
  /*************************************************************
84
   *                    CONNECTION FUNCTIONS                  *
85
   ***********************************************************/
86

    
87
  /**
88
   * Connect to the server specified on the port specified.
89
   * If the port is not specified use the default SMTP_PORT.
90
   * If tval is specified then a connection will try and be
91
   * established with the server for that number of seconds.
92
   * If tval is not specified the default is 30 seconds to
93
   * try on the connection.
94
   *
95
   * SMTP CODE SUCCESS: 220
96
   * SMTP CODE FAILURE: 421
97
   * @access public
98
   * @return bool
99
   */
100
  function Connect($host,$port=0,$tval=30) {
101
    # set the error val to null so there is no confusion
102
    $this->error = null;
103

    
104
    # make sure we are __not__ connected
105
    if($this->connected()) {
106
      # ok we are connected! what should we do?
107
      # for now we will just give an error saying we
108
      # are already connected
109
      $this->error = array("error" => "Already connected to a server");
110
      return false;
111
    }
112

    
113
    if(empty($port)) {
114
      $port = $this->SMTP_PORT;
115
    }
116

    
117
    #connect to the smtp server
118
    $this->smtp_conn = fsockopen($host,    # the host of the server
119
                                 $port,    # the port to use
120
                                 $errno,   # error number if any
121
                                 $errstr,  # error message if any
122
                                 $tval);   # give up after ? secs
123
    # verify we connected properly
124
    if(empty($this->smtp_conn)) {
125
      $this->error = array("error" => "Failed to connect to server",
126
                           "errno" => $errno,
127
                           "errstr" => $errstr);
128
      if($this->do_debug >= 1) {
129
        echo "SMTP -> ERROR: " . $this->error["error"] .
130
                 ": $errstr ($errno)" . $this->CRLF;
131
      }
132
      return false;
133
    }
134

    
135
    # sometimes the SMTP server takes a little longer to respond
136
    # so we will give it a longer timeout for the first read
137
    // Windows still does not have support for this timeout function
138
    if(substr(PHP_OS, 0, 3) != "WIN")
139
     socket_set_timeout($this->smtp_conn, $tval, 0);
140

    
141
    # get any announcement stuff
142
    $announce = $this->get_lines();
143

    
144
    # set the timeout  of any socket functions at 1/10 of a second
145
    //if(function_exists("socket_set_timeout"))
146
    //   socket_set_timeout($this->smtp_conn, 0, 100000);
147

    
148
    if($this->do_debug >= 2) {
149
      echo "SMTP -> FROM SERVER:" . $this->CRLF . $announce;
150
    }
151

    
152
    return true;
153
  }
154

    
155
  /**
156
   * Performs SMTP authentication.  Must be run after running the
157
   * Hello() method.  Returns true if successfully authenticated.
158
   * @access public
159
   * @return bool
160
   */
161
  function Authenticate($username, $password) {
162
    // Start authentication
163
    fputs($this->smtp_conn,"AUTH LOGIN" . $this->CRLF);
164

    
165
    $rply = $this->get_lines();
166
    $code = substr($rply,0,3);
167

    
168
    if($code != 334) {
169
      $this->error =
170
        array("error" => "AUTH not accepted from server",
171
              "smtp_code" => $code,
172
              "smtp_msg" => substr($rply,4));
173
      if($this->do_debug >= 1) {
174
        echo "SMTP -> ERROR: " . $this->error["error"] .
175
                 ": " . $rply . $this->CRLF;
176
      }
177
      return false;
178
    }
179

    
180
    // Send encoded username
181
    fputs($this->smtp_conn, base64_encode($username) . $this->CRLF);
182

    
183
    $rply = $this->get_lines();
184
    $code = substr($rply,0,3);
185

    
186
    if($code != 334) {
187
      $this->error =
188
        array("error" => "Username not accepted from server",
189
              "smtp_code" => $code,
190
              "smtp_msg" => substr($rply,4));
191
      if($this->do_debug >= 1) {
192
        echo "SMTP -> ERROR: " . $this->error["error"] .
193
                 ": " . $rply . $this->CRLF;
194
      }
195
      return false;
196
    }
197

    
198
    // Send encoded password
199
    fputs($this->smtp_conn, base64_encode($password) . $this->CRLF);
200

    
201
    $rply = $this->get_lines();
202
    $code = substr($rply,0,3);
203

    
204
    if($code != 235) {
205
      $this->error =
206
        array("error" => "Password not accepted from server",
207
              "smtp_code" => $code,
208
              "smtp_msg" => substr($rply,4));
209
      if($this->do_debug >= 1) {
210
        echo "SMTP -> ERROR: " . $this->error["error"] .
211
                 ": " . $rply . $this->CRLF;
212
      }
213
      return false;
214
    }
215

    
216
    return true;
217
  }
218

    
219
  /**
220
   * Returns true if connected to a server otherwise false
221
   * @access private
222
   * @return bool
223
   */
224
  function Connected() {
225
    if(!empty($this->smtp_conn)) {
226
      $sock_status = socket_get_status($this->smtp_conn);
227
      if($sock_status["eof"]) {
228
        # hmm this is an odd situation... the socket is
229
        # valid but we are not connected anymore
230
        if($this->do_debug >= 1) {
231
            echo "SMTP -> NOTICE:" . $this->CRLF .
232
                 "EOF caught while checking if connected";
233
        }
234
        $this->Close();
235
        return false;
236
      }
237
      return true; # everything looks good
238
    }
239
    return false;
240
  }
241

    
242
  /**
243
   * Closes the socket and cleans up the state of the class.
244
   * It is not considered good to use this function without
245
   * first trying to use QUIT.
246
   * @access public
247
   * @return void
248
   */
249
  function Close() {
250
    $this->error = null; # so there is no confusion
251
    $this->helo_rply = null;
252
    if(!empty($this->smtp_conn)) {
253
      # close the connection and cleanup
254
      fclose($this->smtp_conn);
255
      $this->smtp_conn = 0;
256
    }
257
  }
258

    
259
  /***************************************************************
260
   *                        SMTP COMMANDS                       *
261
   *************************************************************/
262

    
263
  /**
264
   * Issues a data command and sends the msg_data to the server
265
   * finializing the mail transaction. $msg_data is the message
266
   * that is to be send with the headers. Each header needs to be
267
   * on a single line followed by a <CRLF> with the message headers
268
   * and the message body being seperated by and additional <CRLF>.
269
   *
270
   * Implements rfc 821: DATA <CRLF>
271
   *
272
   * SMTP CODE INTERMEDIATE: 354
273
   *     [data]
274
   *     <CRLF>.<CRLF>
275
   *     SMTP CODE SUCCESS: 250
276
   *     SMTP CODE FAILURE: 552,554,451,452
277
   * SMTP CODE FAILURE: 451,554
278
   * SMTP CODE ERROR  : 500,501,503,421
279
   * @access public
280
   * @return bool
281
   */
282
  function Data($msg_data) {
283
    $this->error = null; # so no confusion is caused
284

    
285
    if(!$this->connected()) {
286
      $this->error = array(
287
              "error" => "Called Data() without being connected");
288
      return false;
289
    }
290

    
291
    fputs($this->smtp_conn,"DATA" . $this->CRLF);
292

    
293
    $rply = $this->get_lines();
294
    $code = substr($rply,0,3);
295

    
296
    if($this->do_debug >= 2) {
297
      echo "SMTP -> FROM SERVER:" . $this->CRLF . $rply;
298
    }
299

    
300
    if($code != 354) {
301
      $this->error =
302
        array("error" => "DATA command not accepted from server",
303
              "smtp_code" => $code,
304
              "smtp_msg" => substr($rply,4));
305
      if($this->do_debug >= 1) {
306
        echo "SMTP -> ERROR: " . $this->error["error"] .
307
                 ": " . $rply . $this->CRLF;
308
      }
309
      return false;
310
    }
311

    
312
    # the server is ready to accept data!
313
    # according to rfc 821 we should not send more than 1000
314
    # including the CRLF
315
    # characters on a single line so we will break the data up
316
    # into lines by \r and/or \n then if needed we will break
317
    # each of those into smaller lines to fit within the limit.
318
    # in addition we will be looking for lines that start with
319
    # a period '.' and append and additional period '.' to that
320
    # line. NOTE: this does not count towards are limit.
321

    
322
    # normalize the line breaks so we know the explode works
323
    $msg_data = str_replace("\r\n","\n",$msg_data);
324
    $msg_data = str_replace("\r","\n",$msg_data);
325
    $lines = explode("\n",$msg_data);
326

    
327
    # we need to find a good way to determine is headers are
328
    # in the msg_data or if it is a straight msg body
329
    # currently I am assuming rfc 822 definitions of msg headers
330
    # and if the first field of the first line (':' sperated)
331
    # does not contain a space then it _should_ be a header
332
    # and we can process all lines before a blank "" line as
333
    # headers.
334
    $field = substr($lines[0],0,strpos($lines[0],":"));
335
    $in_headers = false;
336
    if(!empty($field) && !strstr($field," ")) {
337
      $in_headers = true;
338
    }
339

    
340
    $max_line_length = 998; # used below; set here for ease in change
341

    
342
    while(list(,$line) = @each($lines)) {
343
      $lines_out = null;
344
      if($line == "" && $in_headers) {
345
        $in_headers = false;
346
      }
347
      # ok we need to break this line up into several
348
      # smaller lines
349
      while(strlen($line) > $max_line_length) {
350
        $pos = strrpos(substr($line,0,$max_line_length)," ");
351

    
352
        # Patch to fix DOS attack
353
        if(!$pos) {
354
          $pos = $max_line_length - 1;
355
        }
356

    
357
        $lines_out[] = substr($line,0,$pos);
358
        $line = substr($line,$pos + 1);
359
        # if we are processing headers we need to
360
        # add a LWSP-char to the front of the new line
361
        # rfc 822 on long msg headers
362
        if($in_headers) {
363
          $line = "\t" . $line;
364
        }
365
      }
366
      $lines_out[] = $line;
367

    
368
      # now send the lines to the server
369
      while(list(,$line_out) = @each($lines_out)) {
370
        if(strlen($line_out) > 0)
371
        {
372
          if(substr($line_out, 0, 1) == ".") {
373
            $line_out = "." . $line_out;
374
          }
375
        }
376
        fputs($this->smtp_conn,$line_out . $this->CRLF);
377
      }
378
    }
379

    
380
    # ok all the message data has been sent so lets get this
381
    # over with aleady
382
    fputs($this->smtp_conn, $this->CRLF . "." . $this->CRLF);
383

    
384
    $rply = $this->get_lines();
385
    $code = substr($rply,0,3);
386

    
387
    if($this->do_debug >= 2) {
388
      echo "SMTP -> FROM SERVER:" . $this->CRLF . $rply;
389
    }
390

    
391
    if($code != 250) {
392
      $this->error =
393
        array("error" => "DATA not accepted from server",
394
              "smtp_code" => $code,
395
              "smtp_msg" => substr($rply,4));
396
      if($this->do_debug >= 1) {
397
        echo "SMTP -> ERROR: " . $this->error["error"] .
398
                 ": " . $rply . $this->CRLF;
399
      }
400
      return false;
401
    }
402
    return true;
403
  }
404

    
405
  /**
406
   * Expand takes the name and asks the server to list all the
407
   * people who are members of the _list_. Expand will return
408
   * back and array of the result or false if an error occurs.
409
   * Each value in the array returned has the format of:
410
   *     [ <full-name> <sp> ] <path>
411
   * The definition of <path> is defined in rfc 821
412
   *
413
   * Implements rfc 821: EXPN <SP> <string> <CRLF>
414
   *
415
   * SMTP CODE SUCCESS: 250
416
   * SMTP CODE FAILURE: 550
417
   * SMTP CODE ERROR  : 500,501,502,504,421
418
   * @access public
419
   * @return string array
420
   */
421
  function Expand($name) {
422
    $this->error = null; # so no confusion is caused
423

    
424
    if(!$this->connected()) {
425
      $this->error = array(
426
            "error" => "Called Expand() without being connected");
427
      return false;
428
    }
429

    
430
    fputs($this->smtp_conn,"EXPN " . $name . $this->CRLF);
431

    
432
    $rply = $this->get_lines();
433
    $code = substr($rply,0,3);
434

    
435
    if($this->do_debug >= 2) {
436
      echo "SMTP -> FROM SERVER:" . $this->CRLF . $rply;
437
    }
438

    
439
    if($code != 250) {
440
      $this->error =
441
        array("error" => "EXPN not accepted from server",
442
              "smtp_code" => $code,
443
              "smtp_msg" => substr($rply,4));
444
      if($this->do_debug >= 1) {
445
        echo "SMTP -> ERROR: " . $this->error["error"] .
446
                 ": " . $rply . $this->CRLF;
447
      }
448
      return false;
449
    }
450

    
451
    # parse the reply and place in our array to return to user
452
    $entries = explode($this->CRLF,$rply);
453
    while(list(,$l) = @each($entries)) {
454
      $list[] = substr($l,4);
455
    }
456

    
457
    return $list;
458
  }
459

    
460
  /**
461
   * Sends the HELO command to the smtp server.
462
   * This makes sure that we and the server are in
463
   * the same known state.
464
   *
465
   * Implements from rfc 821: HELO <SP> <domain> <CRLF>
466
   *
467
   * SMTP CODE SUCCESS: 250
468
   * SMTP CODE ERROR  : 500, 501, 504, 421
469
   * @access public
470
   * @return bool
471
   */
472
  function Hello($host="") {
473
    $this->error = null; # so no confusion is caused
474

    
475
    if(!$this->connected()) {
476
      $this->error = array(
477
            "error" => "Called Hello() without being connected");
478
      return false;
479
    }
480

    
481
    # if a hostname for the HELO was not specified determine
482
    # a suitable one to send
483
    if(empty($host)) {
484
      # we need to determine some sort of appopiate default
485
      # to send to the server
486
      $host = "localhost";
487
    }
488

    
489
    // Send extended hello first (RFC 2821)
490
    if(!$this->SendHello("EHLO", $host))
491
    {
492
      if(!$this->SendHello("HELO", $host))
493
          return false;
494
    }
495

    
496
    return true;
497
  }
498

    
499
  /**
500
   * Sends a HELO/EHLO command.
501
   * @access private
502
   * @return bool
503
   */
504
  function SendHello($hello, $host) {
505
    fputs($this->smtp_conn, $hello . " " . $host . $this->CRLF);
506

    
507
    $rply = $this->get_lines();
508
    $code = substr($rply,0,3);
509

    
510
    if($this->do_debug >= 2) {
511
      echo "SMTP -> FROM SERVER: " . $this->CRLF . $rply;
512
    }
513

    
514
    if($code != 250) {
515
      $this->error =
516
        array("error" => $hello . " not accepted from server",
517
              "smtp_code" => $code,
518
              "smtp_msg" => substr($rply,4));
519
      if($this->do_debug >= 1) {
520
        echo "SMTP -> ERROR: " . $this->error["error"] .
521
                 ": " . $rply . $this->CRLF;
522
      }
523
      return false;
524
    }
525

    
526
    $this->helo_rply = $rply;
527

    
528
    return true;
529
  }
530

    
531
  /**
532
   * Gets help information on the keyword specified. If the keyword
533
   * is not specified then returns generic help, ussually contianing
534
   * A list of keywords that help is available on. This function
535
   * returns the results back to the user. It is up to the user to
536
   * handle the returned data. If an error occurs then false is
537
   * returned with $this->error set appropiately.
538
   *
539
   * Implements rfc 821: HELP [ <SP> <string> ] <CRLF>
540
   *
541
   * SMTP CODE SUCCESS: 211,214
542
   * SMTP CODE ERROR  : 500,501,502,504,421
543
   * @access public
544
   * @return string
545
   */
546
  function Help($keyword="") {
547
    $this->error = null; # to avoid confusion
548

    
549
    if(!$this->connected()) {
550
      $this->error = array(
551
              "error" => "Called Help() without being connected");
552
      return false;
553
    }
554

    
555
    $extra = "";
556
    if(!empty($keyword)) {
557
      $extra = " " . $keyword;
558
    }
559

    
560
    fputs($this->smtp_conn,"HELP" . $extra . $this->CRLF);
561

    
562
    $rply = $this->get_lines();
563
    $code = substr($rply,0,3);
564

    
565
    if($this->do_debug >= 2) {
566
      echo "SMTP -> FROM SERVER:" . $this->CRLF . $rply;
567
    }
568

    
569
    if($code != 211 && $code != 214) {
570
      $this->error =
571
        array("error" => "HELP not accepted from server",
572
              "smtp_code" => $code,
573
              "smtp_msg" => substr($rply,4));
574
      if($this->do_debug >= 1) {
575
        echo "SMTP -> ERROR: " . $this->error["error"] .
576
                 ": " . $rply . $this->CRLF;
577
      }
578
      return false;
579
    }
580

    
581
    return $rply;
582
  }
583

    
584
  /**
585
   * Starts a mail transaction from the email address specified in
586
   * $from. Returns true if successful or false otherwise. If True
587
   * the mail transaction is started and then one or more Recipient
588
   * commands may be called followed by a Data command.
589
   *
590
   * Implements rfc 821: MAIL <SP> FROM:<reverse-path> <CRLF>
591
   *
592
   * SMTP CODE SUCCESS: 250
593
   * SMTP CODE SUCCESS: 552,451,452
594
   * SMTP CODE SUCCESS: 500,501,421
595
   * @access public
596
   * @return bool
597
   */
598
  function Mail($from) {
599
    $this->error = null; # so no confusion is caused
600

    
601
    if(!$this->connected()) {
602
      $this->error = array(
603
              "error" => "Called Mail() without being connected");
604
      return false;
605
    }
606

    
607
    $useVerp = ($this->do_verp ? "XVERP" : "");
608
    fputs($this->smtp_conn,"MAIL FROM:<" . $from . ">" . $useVerp . $this->CRLF);
609

    
610
    $rply = $this->get_lines();
611
    $code = substr($rply,0,3);
612

    
613
    if($this->do_debug >= 2) {
614
      echo "SMTP -> FROM SERVER:" . $this->CRLF . $rply;
615
    }
616

    
617
    if($code != 250) {
618
      $this->error =
619
        array("error" => "MAIL not accepted from server",
620
              "smtp_code" => $code,
621
              "smtp_msg" => substr($rply,4));
622
      if($this->do_debug >= 1) {
623
        echo "SMTP -> ERROR: " . $this->error["error"] .
624
                 ": " . $rply . $this->CRLF;
625
      }
626
      return false;
627
    }
628
    return true;
629
  }
630

    
631
  /**
632
   * Sends the command NOOP to the SMTP server.
633
   *
634
   * Implements from rfc 821: NOOP <CRLF>
635
   *
636
   * SMTP CODE SUCCESS: 250
637
   * SMTP CODE ERROR  : 500, 421
638
   * @access public
639
   * @return bool
640
   */
641
  function Noop() {
642
    $this->error = null; # so no confusion is caused
643

    
644
    if(!$this->connected()) {
645
      $this->error = array(
646
              "error" => "Called Noop() without being connected");
647
      return false;
648
    }
649

    
650
    fputs($this->smtp_conn,"NOOP" . $this->CRLF);
651

    
652
    $rply = $this->get_lines();
653
    $code = substr($rply,0,3);
654

    
655
    if($this->do_debug >= 2) {
656
      echo "SMTP -> FROM SERVER:" . $this->CRLF . $rply;
657
    }
658

    
659
    if($code != 250) {
660
      $this->error =
661
        array("error" => "NOOP not accepted from server",
662
              "smtp_code" => $code,
663
              "smtp_msg" => substr($rply,4));
664
      if($this->do_debug >= 1) {
665
        echo "SMTP -> ERROR: " . $this->error["error"] .
666
                 ": " . $rply . $this->CRLF;
667
      }
668
      return false;
669
    }
670
    return true;
671
  }
672

    
673
  /**
674
   * Sends the quit command to the server and then closes the socket
675
   * if there is no error or the $close_on_error argument is true.
676
   *
677
   * Implements from rfc 821: QUIT <CRLF>
678
   *
679
   * SMTP CODE SUCCESS: 221
680
   * SMTP CODE ERROR  : 500
681
   * @access public
682
   * @return bool
683
   */
684
  function Quit($close_on_error=true) {
685
    $this->error = null; # so there is no confusion
686

    
687
    if(!$this->connected()) {
688
      $this->error = array(
689
              "error" => "Called Quit() without being connected");
690
      return false;
691
    }
692

    
693
    # send the quit command to the server
694
    fputs($this->smtp_conn,"quit" . $this->CRLF);
695

    
696
    # get any good-bye messages
697
    $byemsg = $this->get_lines();
698

    
699
    if($this->do_debug >= 2) {
700
      echo "SMTP -> FROM SERVER:" . $this->CRLF . $byemsg;
701
    }
702

    
703
    $rval = true;
704
    $e = null;
705

    
706
    $code = substr($byemsg,0,3);
707
    if($code != 221) {
708
      # use e as a tmp var cause Close will overwrite $this->error
709
      $e = array("error" => "SMTP server rejected quit command",
710
                 "smtp_code" => $code,
711
                 "smtp_rply" => substr($byemsg,4));
712
      $rval = false;
713
      if($this->do_debug >= 1) {
714
        echo "SMTP -> ERROR: " . $e["error"] . ": " .
715
                 $byemsg . $this->CRLF;
716
      }
717
    }
718

    
719
    if(empty($e) || $close_on_error) {
720
      $this->Close();
721
    }
722

    
723
    return $rval;
724
  }
725

    
726
  /**
727
   * Sends the command RCPT to the SMTP server with the TO: argument of $to.
728
   * Returns true if the recipient was accepted false if it was rejected.
729
   *
730
   * Implements from rfc 821: RCPT <SP> TO:<forward-path> <CRLF>
731
   *
732
   * SMTP CODE SUCCESS: 250,251
733
   * SMTP CODE FAILURE: 550,551,552,553,450,451,452
734
   * SMTP CODE ERROR  : 500,501,503,421
735
   * @access public
736
   * @return bool
737
   */
738
  function Recipient($to) {
739
    $this->error = null; # so no confusion is caused
740

    
741
    if(!$this->connected()) {
742
      $this->error = array(
743
              "error" => "Called Recipient() without being connected");
744
      return false;
745
    }
746

    
747
    fputs($this->smtp_conn,"RCPT TO:<" . $to . ">" . $this->CRLF);
748

    
749
    $rply = $this->get_lines();
750
    $code = substr($rply,0,3);
751

    
752
    if($this->do_debug >= 2) {
753
      echo "SMTP -> FROM SERVER:" . $this->CRLF . $rply;
754
    }
755

    
756
    if($code != 250 && $code != 251) {
757
      $this->error =
758
        array("error" => "RCPT not accepted from server",
759
              "smtp_code" => $code,
760
              "smtp_msg" => substr($rply,4));
761
      if($this->do_debug >= 1) {
762
        echo "SMTP -> ERROR: " . $this->error["error"] .
763
                 ": " . $rply . $this->CRLF;
764
      }
765
      return false;
766
    }
767
    return true;
768
  }
769

    
770
  /**
771
   * Sends the RSET command to abort and transaction that is
772
   * currently in progress. Returns true if successful false
773
   * otherwise.
774
   *
775
   * Implements rfc 821: RSET <CRLF>
776
   *
777
   * SMTP CODE SUCCESS: 250
778
   * SMTP CODE ERROR  : 500,501,504,421
779
   * @access public
780
   * @return bool
781
   */
782
  function Reset() {
783
    $this->error = null; # so no confusion is caused
784

    
785
    if(!$this->connected()) {
786
      $this->error = array(
787
              "error" => "Called Reset() without being connected");
788
      return false;
789
    }
790

    
791
    fputs($this->smtp_conn,"RSET" . $this->CRLF);
792

    
793
    $rply = $this->get_lines();
794
    $code = substr($rply,0,3);
795

    
796
    if($this->do_debug >= 2) {
797
      echo "SMTP -> FROM SERVER:" . $this->CRLF . $rply;
798
    }
799

    
800
    if($code != 250) {
801
      $this->error =
802
        array("error" => "RSET failed",
803
              "smtp_code" => $code,
804
              "smtp_msg" => substr($rply,4));
805
      if($this->do_debug >= 1) {
806
        echo "SMTP -> ERROR: " . $this->error["error"] .
807
                 ": " . $rply . $this->CRLF;
808
      }
809
      return false;
810
    }
811

    
812
    return true;
813
  }
814

    
815
  /**
816
   * Starts a mail transaction from the email address specified in
817
   * $from. Returns true if successful or false otherwise. If True
818
   * the mail transaction is started and then one or more Recipient
819
   * commands may be called followed by a Data command. This command
820
   * will send the message to the users terminal if they are logged
821
   * in.
822
   *
823
   * Implements rfc 821: SEND <SP> FROM:<reverse-path> <CRLF>
824
   *
825
   * SMTP CODE SUCCESS: 250
826
   * SMTP CODE SUCCESS: 552,451,452
827
   * SMTP CODE SUCCESS: 500,501,502,421
828
   * @access public
829
   * @return bool
830
   */
831
  function Send($from) {
832
    $this->error = null; # so no confusion is caused
833

    
834
    if(!$this->connected()) {
835
      $this->error = array(
836
              "error" => "Called Send() without being connected");
837
      return false;
838
    }
839

    
840
    fputs($this->smtp_conn,"SEND FROM:" . $from . $this->CRLF);
841

    
842
    $rply = $this->get_lines();
843
    $code = substr($rply,0,3);
844

    
845
    if($this->do_debug >= 2) {
846
      echo "SMTP -> FROM SERVER:" . $this->CRLF . $rply;
847
    }
848

    
849
    if($code != 250) {
850
      $this->error =
851
        array("error" => "SEND not accepted from server",
852
              "smtp_code" => $code,
853
              "smtp_msg" => substr($rply,4));
854
      if($this->do_debug >= 1) {
855
        echo "SMTP -> ERROR: " . $this->error["error"] .
856
                 ": " . $rply . $this->CRLF;
857
      }
858
      return false;
859
    }
860
    return true;
861
  }
862

    
863
  /**
864
   * Starts a mail transaction from the email address specified in
865
   * $from. Returns true if successful or false otherwise. If True
866
   * the mail transaction is started and then one or more Recipient
867
   * commands may be called followed by a Data command. This command
868
   * will send the message to the users terminal if they are logged
869
   * in and send them an email.
870
   *
871
   * Implements rfc 821: SAML <SP> FROM:<reverse-path> <CRLF>
872
   *
873
   * SMTP CODE SUCCESS: 250
874
   * SMTP CODE SUCCESS: 552,451,452
875
   * SMTP CODE SUCCESS: 500,501,502,421
876
   * @access public
877
   * @return bool
878
   */
879
  function SendAndMail($from) {
880
    $this->error = null; # so no confusion is caused
881

    
882
    if(!$this->connected()) {
883
      $this->error = array(
884
          "error" => "Called SendAndMail() without being connected");
885
      return false;
886
    }
887

    
888
    fputs($this->smtp_conn,"SAML FROM:" . $from . $this->CRLF);
889

    
890
    $rply = $this->get_lines();
891
    $code = substr($rply,0,3);
892

    
893
    if($this->do_debug >= 2) {
894
      echo "SMTP -> FROM SERVER:" . $this->CRLF . $rply;
895
    }
896

    
897
    if($code != 250) {
898
      $this->error =
899
        array("error" => "SAML not accepted from server",
900
              "smtp_code" => $code,
901
              "smtp_msg" => substr($rply,4));
902
      if($this->do_debug >= 1) {
903
        echo "SMTP -> ERROR: " . $this->error["error"] .
904
                 ": " . $rply . $this->CRLF;
905
      }
906
      return false;
907
    }
908
    return true;
909
  }
910

    
911
  /**
912
   * Starts a mail transaction from the email address specified in
913
   * $from. Returns true if successful or false otherwise. If True
914
   * the mail transaction is started and then one or more Recipient
915
   * commands may be called followed by a Data command. This command
916
   * will send the message to the users terminal if they are logged
917
   * in or mail it to them if they are not.
918
   *
919
   * Implements rfc 821: SOML <SP> FROM:<reverse-path> <CRLF>
920
   *
921
   * SMTP CODE SUCCESS: 250
922
   * SMTP CODE SUCCESS: 552,451,452
923
   * SMTP CODE SUCCESS: 500,501,502,421
924
   * @access public
925
   * @return bool
926
   */
927
  function SendOrMail($from) {
928
    $this->error = null; # so no confusion is caused
929

    
930
    if(!$this->connected()) {
931
      $this->error = array(
932
          "error" => "Called SendOrMail() without being connected");
933
      return false;
934
    }
935

    
936
    fputs($this->smtp_conn,"SOML FROM:" . $from . $this->CRLF);
937

    
938
    $rply = $this->get_lines();
939
    $code = substr($rply,0,3);
940

    
941
    if($this->do_debug >= 2) {
942
      echo "SMTP -> FROM SERVER:" . $this->CRLF . $rply;
943
    }
944

    
945
    if($code != 250) {
946
      $this->error =
947
        array("error" => "SOML not accepted from server",
948
              "smtp_code" => $code,
949
              "smtp_msg" => substr($rply,4));
950
      if($this->do_debug >= 1) {
951
        echo "SMTP -> ERROR: " . $this->error["error"] .
952
                 ": " . $rply . $this->CRLF;
953
      }
954
      return false;
955
    }
956
    return true;
957
  }
958

    
959
  /**
960
   * This is an optional command for SMTP that this class does not
961
   * support. This method is here to make the RFC821 Definition
962
   * complete for this class and __may__ be implimented in the future
963
   *
964
   * Implements from rfc 821: TURN <CRLF>
965
   *
966
   * SMTP CODE SUCCESS: 250
967
   * SMTP CODE FAILURE: 502
968
   * SMTP CODE ERROR  : 500, 503
969
   * @access public
970
   * @return bool
971
   */
972
  function Turn() {
973
    $this->error = array("error" => "This method, TURN, of the SMTP ".
974
                                    "is not implemented");
975
    if($this->do_debug >= 1) {
976
      echo "SMTP -> NOTICE: " . $this->error["error"] . $this->CRLF;
977
    }
978
    return false;
979
  }
980

    
981
  /**
982
   * Verifies that the name is recognized by the server.
983
   * Returns false if the name could not be verified otherwise
984
   * the response from the server is returned.
985
   *
986
   * Implements rfc 821: VRFY <SP> <string> <CRLF>
987
   *
988
   * SMTP CODE SUCCESS: 250,251
989
   * SMTP CODE FAILURE: 550,551,553
990
   * SMTP CODE ERROR  : 500,501,502,421
991
   * @access public
992
   * @return int
993
   */
994
  function Verify($name) {
995
    $this->error = null; # so no confusion is caused
996

    
997
    if(!$this->connected()) {
998
      $this->error = array(
999
              "error" => "Called Verify() without being connected");
1000
      return false;
1001
    }
1002

    
1003
    fputs($this->smtp_conn,"VRFY " . $name . $this->CRLF);
1004

    
1005
    $rply = $this->get_lines();
1006
    $code = substr($rply,0,3);
1007

    
1008
    if($this->do_debug >= 2) {
1009
      echo "SMTP -> FROM SERVER:" . $this->CRLF . $rply;
1010
    }
1011

    
1012
    if($code != 250 && $code != 251) {
1013
      $this->error =
1014
        array("error" => "VRFY failed on name '$name'",
1015
              "smtp_code" => $code,
1016
              "smtp_msg" => substr($rply,4));
1017
      if($this->do_debug >= 1) {
1018
        echo "SMTP -> ERROR: " . $this->error["error"] .
1019
                 ": " . $rply . $this->CRLF;
1020
      }
1021
      return false;
1022
    }
1023
    return $rply;
1024
  }
1025

    
1026
  /*******************************************************************
1027
   *                       INTERNAL FUNCTIONS                       *
1028
   ******************************************************************/
1029

    
1030
  /**
1031
   * Read in as many lines as possible
1032
   * either before eof or socket timeout occurs on the operation.
1033
   * With SMTP we can tell if we have more lines to read if the
1034
   * 4th character is '-' symbol. If it is a space then we don't
1035
   * need to read anything else.
1036
   * @access private
1037
   * @return string
1038
   */
1039
  function get_lines() {
1040
    $data = "";
1041
    while($str == @fgets($this->smtp_conn,515)) {
1042
      if($this->do_debug >= 4) {
1043
        echo "SMTP -> get_lines(): \$data was \"$data\"" .
1044
                 $this->CRLF;
1045
        echo "SMTP -> get_lines(): \$str is \"$str\"" .
1046
                 $this->CRLF;
1047
      }
1048
      $data .= $str;
1049
      if($this->do_debug >= 4) {
1050
        echo "SMTP -> get_lines(): \$data is \"$data\"" . $this->CRLF;
1051
      }
1052
      # if the 4th character is a space then we are done reading
1053
      # so just break the loop
1054
      if(substr($str,3,1) == " ") { break; }
1055
    }
1056
    return $data;
1057
  }
1058

    
1059
}
1060

    
1061

    
1062
 ?>
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