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authorthomascube <thomas@roundcube.net>2005-09-30 22:04:50 +0000
committerthomascube <thomas@roundcube.net>2005-09-30 22:04:50 +0000
commit968bdc7c90f718560b84eb3b7e8e1d02cf4270f3 (patch)
treea97784b62efac5215dc1cd71ea6b9a53aa753d8e /program/include
parent15fee7b8dd9991c798e6b3eeb9f98cd34e8153fc (diff)
Improved SMTP script for sending mails. Now using the PEAR::Net_SMTP class
Diffstat (limited to 'program/include')
-rw-r--r--program/include/rcube_smtp.inc324
1 files changed, 324 insertions, 0 deletions
diff --git a/program/include/rcube_smtp.inc b/program/include/rcube_smtp.inc
new file mode 100644
index 000000000..9f1932703
--- /dev/null
+++ b/program/include/rcube_smtp.inc
@@ -0,0 +1,324 @@
+<?
+
+/*
+ +-----------------------------------------------------------------------+
+ | program/include/rcube_smtp.inc |
+ | |
+ | This file is part of the RoundCube Webmail client |
+ | Copyright (C) 2005, RoundCube Dev. - Switzerland |
+ | Licensed under the GNU GPL |
+ | |
+ | PURPOSE: |
+ | Provide SMTP functionality using socket connections |
+ | |
+ +-----------------------------------------------------------------------+
+ | Author: Thomas Bruederli <roundcube@gmail.com> |
+ +-----------------------------------------------------------------------+
+
+ $Id$
+
+*/
+
+
+// include required PEAR classes
+require_once('Net/SMTP.php');
+
+
+// define headers delimiter
+define('SMTP_MIME_CRLF', "\r\n");
+
+$SMTP_CONN = null;
+
+/**
+ * Function for sending mail using SMTP.
+ *
+ * @param string Sender e-Mail address
+ *
+ * @param mixed Either a comma-seperated list of recipients
+ * (RFC822 compliant), or an array of recipients,
+ * each RFC822 valid. This may contain recipients not
+ * specified in the headers, for Bcc:, resending
+ * messages, etc.
+ *
+ * @param mixed The message headers to send with the mail
+ * Either as an associative array or a finally
+ * formatted string
+ *
+ * @param string The full text of the message body, including any Mime parts, etc.
+ *
+ * @return bool Returns TRUE on success, or FALSE on error
+ * @access public
+ */
+function smtp_mail($from, $recipients, $headers, $body)
+ {
+ global $SMTP_CONN, $CONFIG, $SMTP_ERROR;
+ $smtp_timeout = null;
+ $smtp_port = is_numeric($CONFIG['smtp_port']) ? $CONFIG['smtp_port'] : 25;
+
+ // create Net_SMTP object and connect to server
+ if (!is_object($smtp_conn))
+ {
+ $SMTP_CONN = new Net_SMTP($CONFIG['smtp_server'], $smtp_port, 'localhost');
+
+ // set debugging
+ if ($CONFIG['debug_level'] & 8)
+ $SMTP_CONN->setDebug(TRUE);
+
+
+ // try to connect to server and exit on failure
+ if (PEAR::isError($SMTP_CONN->connect($smtp_timeout)))
+ {
+ $SMTP_CONN = null;
+ $SMTP_ERROR .= "Connection failed\n";
+ return FALSE;
+ }
+
+
+ // attempt to authenticate to the SMTP server
+ if ($CONFIG['smtp_user'] && $CONFIG['smtp_pass'])
+ {
+ if (PEAR::isError($SMTP_CONN->auth($CONFIG['smtp_user'], $CONFIG['smtp_pass'])))
+ {
+ smtp_reset();
+ $SMTP_ERROR .= "authentication failure\n";
+ return FALSE;
+ }
+ }
+ }
+
+
+ // prepare message headers as string
+ if (is_array($headers))
+ {
+ $headerElements = smtp_prepare_headers($headers);
+ if (!$headerElements)
+ {
+ smtp_reset();
+ return FALSE;
+ }
+
+ list($from, $text_headers) = $headerElements;
+ }
+ else if (is_string($headers))
+ $text_headers = $headers;
+ else
+ {
+ smtp_reset();
+ $SMTP_ERROR .= "Invalid message headers\n";
+ return FALSE;
+ }
+
+ // exit if no from address is given
+ if (!isset($from))
+ {
+ smtp_reset();
+ $SMTP_ERROR .= "No From address has been provided\n";
+ return FALSE;
+ }
+
+
+ // set From: address
+ if (PEAR::isError($SMTP_CONN->mailFrom($from)))
+ {
+ smtp_reset();
+ $SMTP_ERROR .= "Failed to set sender '$from'\n";
+ return FALSE;
+ }
+
+
+ // prepare list of recipients
+ $recipients = smtp_parse_rfc822($recipients);
+ if (PEAR::isError($recipients))
+ {
+ smtp_reset();
+ return FALSE;
+ }
+
+
+ // set mail recipients
+ foreach ($recipients as $recipient)
+ {
+ if (PEAR::isError($SMTP_CONN->rcptTo($recipient)))
+ {
+ smtp_reset();
+ $SMTP_ERROR .= "Failed to add recipient '$recipient'\n";
+ return FALSE;
+ }
+ }
+
+
+ // Send the message's headers and the body as SMTP data.
+ if (PEAR::isError($SMTP_CONN->data("$text_headers\r\n$body")))
+ {
+ smtp_reset();
+ $SMTP_ERROR .= "Failed to send data\n";
+ return FALSE;
+ }
+
+
+ return TRUE;
+ }
+
+
+
+/**
+ * Reset the global SMTP connection
+ * @access public
+ */
+function smtp_reset()
+ {
+ global $SMTP_CONN;
+
+ if (is_object($SMTP_CONN))
+ {
+ $SMTP_CONN->rset();
+ smtp_disconnect();
+ }
+ }
+
+
+
+/**
+ * Disconnect the global SMTP connection and destroy object
+ * @access public
+ */
+function smtp_disconnect()
+ {
+ global $SMTP_CONN;
+
+ if (is_object($SMTP_CONN))
+ {
+ $SMTP_CONN->disconnect();
+ $SMTP_CONN = null;
+ }
+ }
+
+
+/**
+ * Take an array of mail headers and return a string containing
+ * text usable in sending a message.
+ *
+ * @param array $headers The array of headers to prepare, in an associative
+ * array, where the array key is the header name (ie,
+ * 'Subject'), and the array value is the header
+ * value (ie, 'test'). The header produced from those
+ * values would be 'Subject: test'.
+ *
+ * @return mixed Returns false if it encounters a bad address,
+ * otherwise returns an array containing two
+ * elements: Any From: address found in the headers,
+ * and the plain text version of the headers.
+ * @access private
+ */
+function smtp_prepare_headers($headers)
+ {
+ $lines = array();
+ $from = null;
+
+ foreach ($headers as $key => $value)
+ {
+ if (strcasecmp($key, 'From') === 0)
+ {
+ $addresses = smtp_parse_rfc822($value);
+
+ if (is_array($addresses))
+ $from = $addresses[0];
+
+ // Reject envelope From: addresses with spaces.
+ if (strstr($from, ' '))
+ return FALSE;
+
+
+ $lines[] = $key . ': ' . $value;
+ }
+ else if (strcasecmp($key, 'Received') === 0)
+ {
+ $received = array();
+ if (is_array($value))
+ {
+ foreach ($value as $line)
+ $received[] = $key . ': ' . $line;
+ }
+ else
+ {
+ $received[] = $key . ': ' . $value;
+ }
+
+ // Put Received: headers at the top. Spam detectors often
+ // flag messages with Received: headers after the Subject:
+ // as spam.
+ $lines = array_merge($received, $lines);
+ }
+
+ else
+ {
+ // If $value is an array (i.e., a list of addresses), convert
+ // it to a comma-delimited string of its elements (addresses).
+ if (is_array($value))
+ $value = implode(', ', $value);
+
+ $lines[] = $key . ': ' . $value;
+ }
+ }
+
+ return array($from, join(SMTP_MIME_CRLF, $lines) . SMTP_MIME_CRLF);
+ }
+
+
+
+/**
+ * Take a set of recipients and parse them, returning an array of
+ * bare addresses (forward paths) that can be passed to sendmail
+ * or an smtp server with the rcpt to: command.
+ *
+ * @param mixed Either a comma-seperated list of recipients
+ * (RFC822 compliant), or an array of recipients,
+ * each RFC822 valid.
+ *
+ * @return array An array of forward paths (bare addresses).
+ * @access private
+ */
+function smtp_parse_rfc822($recipients)
+ {
+ // if we're passed an array, assume addresses are valid and implode them before parsing.
+ if (is_array($recipients))
+ $recipients = implode(', ', $recipients);
+
+ $addresses = array();
+ $recipients = smtp_explode_quoted_str(",", $recipients);
+
+ reset($recipients);
+ while (list($k, $recipient) = each($recipients))
+ {
+ $a = explode(" ", $recipient);
+ while (list($k2, $word) = each($a))
+ {
+ if ((strpos($word, "@") > 0) && (strpos($word, "\"")===false))
+ {
+ $word = ereg_replace('^<|>$', '', trim($word));
+ if (in_array($word, $addresses)===false)
+ array_push($addresses, $word);
+ }
+ }
+ }
+ return $addresses;
+ }
+
+
+function smtp_explode_quoted_str($delimiter, $string)
+ {
+ $quotes=explode("\"", $string);
+ while ( list($key, $val) = each($quotes))
+ if (($key % 2) == 1)
+ $quotes[$key] = str_replace($delimiter, "_!@!_", $quotes[$key]);
+ $string=implode("\"", $quotes);
+
+ $result=explode($delimiter, $string);
+ while (list($key, $val) = each($result))
+ $result[$key] = str_replace("_!@!_", $delimiter, $result[$key]);
+
+ return $result;
+ }
+
+
+?>