mini-blog /library/Zend/Mail/Protocol/Pop3.php

Language PHP Lines 473
MD5 Hash efeff3bbd8e9a20aa29a4ed085a2484a Estimated Cost $5,300 (why?)
Repository https://bitbucket.org/luizbrandaoj/mini-blog.git View Raw File View Project SPDX
  1
  2
  3
  4
  5
  6
  7
  8
  9
 10
 11
 12
 13
 14
 15
 16
 17
 18
 19
 20
 21
 22
 23
 24
 25
 26
 27
 28
 29
 30
 31
 32
 33
 34
 35
 36
 37
 38
 39
 40
 41
 42
 43
 44
 45
 46
 47
 48
 49
 50
 51
 52
 53
 54
 55
 56
 57
 58
 59
 60
 61
 62
 63
 64
 65
 66
 67
 68
 69
 70
 71
 72
 73
 74
 75
 76
 77
 78
 79
 80
 81
 82
 83
 84
 85
 86
 87
 88
 89
 90
 91
 92
 93
 94
 95
 96
 97
 98
 99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
<?php
/**
 * Zend Framework
 *
 * LICENSE
 *
 * This source file is subject to the new BSD license that is bundled
 * with this package in the file LICENSE.txt.
 * It is also available through the world-wide-web at this URL:
 * http://framework.zend.com/license/new-bsd
 * If you did not receive a copy of the license and are unable to
 * obtain it through the world-wide-web, please send an email
 * to license@zend.com so we can send you a copy immediately.
 *
 * @category   Zend
 * @package    Zend_Mail
 * @subpackage Protocol
 * @copyright  Copyright (c) 2005-2011 Zend Technologies USA Inc. (http://www.zend.com)
 * @license    http://framework.zend.com/license/new-bsd     New BSD License
 * @version    $Id: Pop3.php 23775 2011-03-01 17:25:24Z ralph $
 */


/**
 * @category   Zend
 * @package    Zend_Mail
 * @subpackage Protocol
 * @copyright  Copyright (c) 2005-2011 Zend Technologies USA Inc. (http://www.zend.com)
 * @license    http://framework.zend.com/license/new-bsd     New BSD License
 */
class Zend_Mail_Protocol_Pop3
{
    /**
     * Default timeout in seconds for initiating session
     */
    const TIMEOUT_CONNECTION = 30;

    /**
     * saves if server supports top
     * @var null|bool
     */
    public $hasTop = null;

    /**
     * socket to pop3
     * @var null|resource
     */
    protected $_socket;

    /**
     * greeting timestamp for apop
     * @var null|string
     */
    protected $_timestamp;


    /**
     * Public constructor
     *
     * @param  string      $host  hostname or IP address of POP3 server, if given connect() is called
     * @param  int|null    $port  port of POP3 server, null for default (110 or 995 for ssl)
     * @param  bool|string $ssl   use ssl? 'SSL', 'TLS' or false
     * @throws Zend_Mail_Protocol_Exception
     */
    public function __construct($host = '', $port = null, $ssl = false)
    {
        if ($host) {
            $this->connect($host, $port, $ssl);
        }
    }


    /**
     * Public destructor
     */
    public function __destruct()
    {
        $this->logout();
    }


    /**
     * Open connection to POP3 server
     *
     * @param  string      $host  hostname or IP address of POP3 server
     * @param  int|null    $port  of POP3 server, default is 110 (995 for ssl)
     * @param  string|bool $ssl   use 'SSL', 'TLS' or false
     * @return string welcome message
     * @throws Zend_Mail_Protocol_Exception
     */
    public function connect($host, $port = null, $ssl = false)
    {
        if ($ssl == 'SSL') {
            $host = 'ssl://' . $host;
        }

        if ($port === null) {
            $port = $ssl == 'SSL' ? 995 : 110;
        }

        $errno  =  0;
        $errstr = '';
        $this->_socket = @fsockopen($host, $port, $errno, $errstr, self::TIMEOUT_CONNECTION);
        if (!$this->_socket) {
            /**
             * @see Zend_Mail_Protocol_Exception
             */
            require_once 'Zend/Mail/Protocol/Exception.php';
            throw new Zend_Mail_Protocol_Exception('cannot connect to host; error = ' . $errstr .
                                                   ' (errno = ' . $errno . ' )');
        }

        $welcome = $this->readResponse();

        strtok($welcome, '<');
        $this->_timestamp = strtok('>');
        if (!strpos($this->_timestamp, '@')) {
            $this->_timestamp = null;
        } else {
            $this->_timestamp = '<' . $this->_timestamp . '>';
        }

        if ($ssl === 'TLS') {
            $this->request('STLS');
            $result = stream_socket_enable_crypto($this->_socket, true, STREAM_CRYPTO_METHOD_TLS_CLIENT);
            if (!$result) {
                /**
                 * @see Zend_Mail_Protocol_Exception
                 */
                require_once 'Zend/Mail/Protocol/Exception.php';
                throw new Zend_Mail_Protocol_Exception('cannot enable TLS');
            }
        }

        return $welcome;
    }


    /**
     * Send a request
     *
     * @param string $request your request without newline
     * @return null
     * @throws Zend_Mail_Protocol_Exception
     */
    public function sendRequest($request)
    {
        $result = @fputs($this->_socket, $request . "\r\n");
        if (!$result) {
            /**
             * @see Zend_Mail_Protocol_Exception
             */
            require_once 'Zend/Mail/Protocol/Exception.php';
            throw new Zend_Mail_Protocol_Exception('send failed - connection closed?');
        }
    }


    /**
     * read a response
     *
     * @param  boolean $multiline response has multiple lines and should be read until "<nl>.<nl>"
     * @return string response
     * @throws Zend_Mail_Protocol_Exception
     */
    public function readResponse($multiline = false)
    {
        $result = @fgets($this->_socket);
        if (!is_string($result)) {
            /**
             * @see Zend_Mail_Protocol_Exception
             */
            require_once 'Zend/Mail/Protocol/Exception.php';
            throw new Zend_Mail_Protocol_Exception('read failed - connection closed?');
        }

        $result = trim($result);
        if (strpos($result, ' ')) {
            list($status, $message) = explode(' ', $result, 2);
        } else {
            $status = $result;
            $message = '';
        }

        if ($status != '+OK') {
            /**
             * @see Zend_Mail_Protocol_Exception
             */
            require_once 'Zend/Mail/Protocol/Exception.php';
            throw new Zend_Mail_Protocol_Exception('last request failed');
        }

        if ($multiline) {
            $message = '';
            $line = fgets($this->_socket);
            while ($line && rtrim($line, "\r\n") != '.') {
                if ($line[0] == '.') {
                    $line = substr($line, 1);
                }
                $message .= $line;
                $line = fgets($this->_socket);
            };
        }

        return $message;
    }


    /**
     * Send request and get resposne
     *
     * @see sendRequest(), readResponse()
     *
     * @param  string $request    request
     * @param  bool   $multiline  multiline response?
     * @return string             result from readResponse()
     * @throws Zend_Mail_Protocol_Exception
     */
    public function request($request, $multiline = false)
    {
        $this->sendRequest($request);
        return $this->readResponse($multiline);
    }


    /**
     * End communication with POP3 server (also closes socket)
     *
     * @return null
     */
    public function logout()
    {
        if (!$this->_socket) {
            return;
        }

        try {
            $this->request('QUIT');
        } catch (Zend_Mail_Protocol_Exception $e) {
            // ignore error - we're closing the socket anyway
        }

        fclose($this->_socket);
        $this->_socket = null;
    }


    /**
     * Get capabilities from POP3 server
     *
     * @return array list of capabilities
     * @throws Zend_Mail_Protocol_Exception
     */
    public function capa()
    {
        $result = $this->request('CAPA', true);
        return explode("\n", $result);
    }


    /**
     * Login to POP3 server. Can use APOP
     *
     * @param  string $user      username
     * @param  string $password  password
     * @param  bool   $try_apop  should APOP be tried?
     * @return void
     * @throws Zend_Mail_Protocol_Exception
     */
    public function login($user, $password, $tryApop = true)
    {
        if ($tryApop && $this->_timestamp) {
            try {
                $this->request("APOP $user " . md5($this->_timestamp . $password));
                return;
            } catch (Zend_Mail_Protocol_Exception $e) {
                // ignore
            }
        }

        $result = $this->request("USER $user");
        $result = $this->request("PASS $password");
    }


    /**
     * Make STAT call for message count and size sum
     *
     * @param  int $messages  out parameter with count of messages
     * @param  int $octets    out parameter with size in octects of messages
     * @return void
     * @throws Zend_Mail_Protocol_Exception
     */
    public function status(&$messages, &$octets)
    {
        $messages = 0;
        $octets = 0;
        $result = $this->request('STAT');

        list($messages, $octets) = explode(' ', $result);
    }


    /**
     * Make LIST call for size of message(s)
     *
     * @param  int|null $msgno number of message, null for all
     * @return int|array size of given message or list with array(num => size)
     * @throws Zend_Mail_Protocol_Exception
     */
    public function getList($msgno = null)
    {
        if ($msgno !== null) {
            $result = $this->request("LIST $msgno");

            list(, $result) = explode(' ', $result);
            return (int)$result;
        }

        $result = $this->request('LIST', true);
        $messages = array();
        $line = strtok($result, "\n");
        while ($line) {
            list($no, $size) = explode(' ', trim($line));
            $messages[(int)$no] = (int)$size;
            $line = strtok("\n");
        }

        return $messages;
    }


    /**
     * Make UIDL call for getting a uniqueid
     *
     * @param  int|null $msgno number of message, null for all
     * @return string|array uniqueid of message or list with array(num => uniqueid)
     * @throws Zend_Mail_Protocol_Exception
     */
    public function uniqueid($msgno = null)
    {
        if ($msgno !== null) {
            $result = $this->request("UIDL $msgno");

            list(, $result) = explode(' ', $result);
            return $result;
        }

        $result = $this->request('UIDL', true);

        $result = explode("\n", $result);
        $messages = array();
        foreach ($result as $line) {
            if (!$line) {
                continue;
            }
            list($no, $id) = explode(' ', trim($line), 2);
            $messages[(int)$no] = $id;
        }

        return $messages;

    }


    /**
     * Make TOP call for getting headers and maybe some body lines
     * This method also sets hasTop - before it it's not known if top is supported
     *
     * The fallback makes normale RETR call, which retrieves the whole message. Additional
     * lines are not removed.
     *
     * @param  int  $msgno    number of message
     * @param  int  $lines    number of wanted body lines (empty line is inserted after header lines)
     * @param  bool $fallback fallback with full retrieve if top is not supported
     * @return string message headers with wanted body lines
     * @throws Zend_Mail_Protocol_Exception
     */
    public function top($msgno, $lines = 0, $fallback = false)
    {
        if ($this->hasTop === false) {
            if ($fallback) {
                return $this->retrieve($msgno);
            } else {
                /**
                 * @see Zend_Mail_Protocol_Exception
                 */
                require_once 'Zend/Mail/Protocol/Exception.php';
                throw new Zend_Mail_Protocol_Exception('top not supported and no fallback wanted');
            }
        }
        $this->hasTop = true;

        $lines = (!$lines || $lines < 1) ? 0 : (int)$lines;

        try {
            $result = $this->request("TOP $msgno $lines", true);
        } catch (Zend_Mail_Protocol_Exception $e) {
            $this->hasTop = false;
            if ($fallback) {
                $result = $this->retrieve($msgno);
            } else {
                throw $e;
            }
        }

        return $result;
    }


    /**
     * Make a RETR call for retrieving a full message with headers and body
     *
     * @deprecated since 1.1.0; this method has a typo - please use retrieve()
     * @param  int $msgno  message number
     * @return string message
     * @throws Zend_Mail_Protocol_Exception
     */
    public function retrive($msgno)
    {
        return $this->retrieve($msgno);
    }


    /**
     * Make a RETR call for retrieving a full message with headers and body
     *
     * @param  int $msgno  message number
     * @return string message
     * @throws Zend_Mail_Protocol_Exception
     */
    public function retrieve($msgno)
    {
        $result = $this->request("RETR $msgno", true);
        return $result;
    }

    /**
     * Make a NOOP call, maybe needed for keeping the server happy
     *
     * @return null
     * @throws Zend_Mail_Protocol_Exception
     */
    public function noop()
    {
        $this->request('NOOP');
    }


    /**
     * Make a DELE count to remove a message
     *
     * @return null
     * @throws Zend_Mail_Protocol_Exception
     */
    public function delete($msgno)
    {
        $this->request("DELE $msgno");
    }


    /**
     * Make RSET call, which rollbacks delete requests
     *
     * @return null
     * @throws Zend_Mail_Protocol_Exception
     */
    public function undelete()
    {
        $this->request('RSET');
    }
}
Back to Top