3 * PEAR's Mail:: interface.
9 * Copyright (c) 2002-2007, Richard Heyes
10 * All rights reserved.
12 * Redistribution and use in source and binary forms, with or without
13 * modification, are permitted provided that the following conditions
16 * o Redistributions of source code must retain the above copyright
17 * notice, this list of conditions and the following disclaimer.
18 * o Redistributions in binary form must reproduce the above copyright
19 * notice, this list of conditions and the following disclaimer in the
20 * documentation and/or other materials provided with the distribution.
21 * o The names of the authors may not be used to endorse or promote
22 * products derived from this software without specific prior written
25 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
26 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
27 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
28 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
29 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
30 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
31 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
32 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
33 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
34 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
35 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
39 * @author Chuck Hagenbuch <chuck@horde.org>
40 * @copyright 1997-2010 Chuck Hagenbuch
41 * @license http://opensource.org/licenses/bsd-license.php New BSD License
43 * @link http://pear.php.net/package/Mail/
46 require_once 'PEAR.php';
49 * PEAR's Mail:: interface. Defines the interface for implementing
50 * mailers under the PEAR hierarchy, and provides supporting functions
51 * useful in multiple mailer backends.
59 * Line terminator used for separating header lines.
65 * Provides an interface for generating Mail:: objects of various
68 * @param string $driver The kind of Mail:: object to instantiate.
69 * @param array $params The parameters to pass to the Mail:: object.
71 * @return object Mail a instance of the driver class or if fails a PEAR Error
73 public static function factory($driver, $params = array())
75 $driver = strtolower($driver);
76 @include_once 'Mail/' . $driver . '.php';
77 $class = 'Mail_' . $driver;
78 if (class_exists($class)) {
79 $mailer = new $class($params);
82 return PEAR::raiseError('Unable to find class for driver ' . $driver);
87 * Implements Mail::send() function using php's built-in mail()
90 * @param mixed $recipients Either a comma-seperated list of recipients
91 * (RFC822 compliant), or an array of recipients,
92 * each RFC822 valid. This may contain recipients not
93 * specified in the headers, for Bcc:, resending
96 * @param array $headers The array of headers to send with the mail, in an
97 * associative array, where the array key is the
98 * header name (ie, 'Subject'), and the array value
99 * is the header value (ie, 'test'). The header
100 * produced from those values would be 'Subject:
103 * @param string $body The full text of the message body, including any
106 * @return mixed Returns true on success, or a PEAR_Error
107 * containing a descriptive error message on
110 * @deprecated use Mail_mail::send instead
112 public function send($recipients, $headers, $body)
114 if (!is_array($headers)) {
115 return PEAR::raiseError('$headers must be an array');
118 $result = $this->_sanitizeHeaders($headers);
119 if (is_a($result, 'PEAR_Error')) {
123 // if we're passed an array of recipients, implode it.
124 if (is_array($recipients)) {
125 $recipients = implode(', ', $recipients);
128 // get the Subject out of the headers array so that we can
129 // pass it as a seperate argument to mail().
131 if (isset($headers['Subject'])) {
132 $subject = $headers['Subject'];
133 unset($headers['Subject']);
136 // flatten the headers out.
137 list(, $text_headers) = Mail::prepareHeaders($headers);
139 return mail($recipients, $subject, $body, $text_headers);
143 * Sanitize an array of mail headers by removing any additional header
144 * strings present in a legitimate header's value. The goal of this
145 * filter is to prevent mail injection attacks.
147 * @param array $headers The associative array of headers to sanitize.
149 protected function _sanitizeHeaders(&$headers)
151 foreach ($headers as $key => $value) {
153 preg_replace('=((<CR>|<LF>|0x0A/%0A|0x0D/%0D|\\n|\\r)\S).*=i',
159 * Take an array of mail headers and return a string containing
160 * text usable in sending a message.
162 * @param array $headers The array of headers to prepare, in an associative
163 * array, where the array key is the header name (ie,
164 * 'Subject'), and the array value is the header
165 * value (ie, 'test'). The header produced from those
166 * values would be 'Subject: test'.
168 * @return mixed Returns false if it encounters a bad address,
169 * otherwise returns an array containing two
170 * elements: Any From: address found in the headers,
171 * and the plain text version of the headers.
173 protected function prepareHeaders($headers)
178 foreach ($headers as $key => $value) {
179 if (strcasecmp($key, 'From') === 0) {
180 include_once 'Mail/RFC822.php';
181 $parser = new Mail_RFC822();
182 $addresses = $parser->parseAddressList($value, 'localhost', false);
183 if (is_a($addresses, 'PEAR_Error')) {
187 $from = $addresses[0]->mailbox . '@' . $addresses[0]->host;
189 // Reject envelope From: addresses with spaces.
190 if (strstr($from, ' ')) {
194 $lines[] = $key . ': ' . $value;
195 } elseif (strcasecmp($key, 'Received') === 0) {
197 if (is_array($value)) {
198 foreach ($value as $line) {
199 $received[] = $key . ': ' . $line;
203 $received[] = $key . ': ' . $value;
205 // Put Received: headers at the top. Spam detectors often
206 // flag messages with Received: headers after the Subject:
208 $lines = array_merge($received, $lines);
210 // If $value is an array (i.e., a list of addresses), convert
211 // it to a comma-delimited string of its elements (addresses).
212 if (is_array($value)) {
213 $value = implode(', ', $value);
215 $lines[] = $key . ': ' . $value;
219 return array($from, join($this->sep, $lines));
223 * Take a set of recipients and parse them, returning an array of
224 * bare addresses (forward paths) that can be passed to sendmail
225 * or an smtp server with the rcpt to: command.
227 * @param mixed Either a comma-seperated list of recipients
228 * (RFC822 compliant), or an array of recipients,
231 * @return mixed An array of forward paths (bare addresses) or a PEAR_Error
232 * object if the address list could not be parsed.
234 protected function parseRecipients($recipients)
236 include_once 'Mail/RFC822.php';
238 // if we're passed an array, assume addresses are valid and
239 // implode them before parsing.
240 if (is_array($recipients)) {
241 $recipients = implode(', ', $recipients);
244 // Parse recipients, leaving out all personal info. This is
245 // for smtp recipients, etc. All relevant personal information
246 // should already be in the headers.
247 $Mail_RFC822 = new Mail_RFC822();
248 $addresses = $Mail_RFC822->parseAddressList($recipients, 'localhost', false);
250 // If parseAddressList() returned a PEAR_Error object, just return it.
251 if (is_a($addresses, 'PEAR_Error')) {
255 $recipients = array();
256 if (is_array($addresses)) {
257 foreach ($addresses as $ob) {
258 $recipients[] = $ob->mailbox . '@' . $ob->host;