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95 lines
2.7 KiB
PHP
95 lines
2.7 KiB
PHP
<?php
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/**
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* Identity selection based on additional message headers.
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*
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* On reply to a message user identity selection is based on
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* content of standard headers i.e. From, To, Cc and Return-Path.
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* Here you can add header(s) set by your SMTP server (e.g.
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* Delivered-To, Envelope-To, X-Envelope-To, X-RCPT-TO) to make
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* identity selection more accurate.
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*
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* Enable the plugin in config.inc.php and add your desired headers:
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* $config['identity_select_headers'] = array('Delivered-To');
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*
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* Note: 'Received' header is also supported, but has bigger impact
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* on performance, as it's body is potentially much bigger
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* than other headers used by Roundcube
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*
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* @author Aleksander Machniak <alec@alec.pl>
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* @license GNU GPLv3+
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*/
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class identity_select extends rcube_plugin
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{
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public $task = 'mail';
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function init()
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{
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$this->add_hook('identity_select', array($this, 'select'));
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$this->add_hook('storage_init', array($this, 'storage_init'));
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}
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/**
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* Adds additional headers to supported headers list
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*/
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function storage_init($p)
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{
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$rcmail = rcmail::get_instance();
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if ($add_headers = (array)$rcmail->config->get('identity_select_headers', array())) {
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$p['fetch_headers'] = trim($p['fetch_headers'] . ' ' . strtoupper(join(' ', $add_headers)));
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}
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return $p;
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}
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/**
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* Identity selection
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*/
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function select($p)
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{
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if ($p['selected'] !== null || !is_object($p['message']->headers)) {
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return $p;
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}
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$rcmail = rcmail::get_instance();
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foreach ((array)$rcmail->config->get('identity_select_headers', array()) as $header) {
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if ($emails = $this->get_email_from_header($p['message'], $header)) {
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foreach ($p['identities'] as $idx => $ident) {
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if (in_array($ident['email_ascii'], $emails)) {
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$p['selected'] = $idx;
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break 2;
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}
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}
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}
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}
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return $p;
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}
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/**
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* Extract email address from specified message header
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*/
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protected function get_email_from_header($message, $header)
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{
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$value = $message->headers->get($header, false);
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if (strtolower($header) == 'received') {
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// find first email address in all Received headers
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$email = null;
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foreach ((array) $value as $entry) {
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if (preg_match('/[\s\t]+for[\s\t]+<([^>]+)>/', $entry, $matches)) {
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$email = $matches[1];
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break;
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}
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}
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$value = $email;
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}
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return (array) $value;
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}
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}
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