Wordpress 4.6
[autoinstalls/wordpress.git] / wp-mail.php
index 9e767fb3b053812d9ead98a6b52e224f95446918..62c9a119033a996f87b018cd4f75e9552145b8ac 100644 (file)
 <?php
-require(dirname(__FILE__) . '/wp-config.php');
+/**
+ * Gets the email message from the user's mailbox to add as
+ * a WordPress post. Mailbox connection information must be
+ * configured under Settings > Writing
+ *
+ * @package WordPress
+ */
 
-require_once(ABSPATH.WPINC.'/class-pop3.php');
+/** Make sure that the WordPress bootstrap has run before continuing. */
+require(dirname(__FILE__) . '/wp-load.php');
 
-error_reporting(2037);
+/** This filter is documented in wp-admin/options.php */
+if ( ! apply_filters( 'enable_post_by_email_configuration', true ) )
+       wp_die( __( 'This action has been disabled by the administrator.' ) );
 
-$time_difference = get_option('gmt_offset') * 3600;
+/**
+ * Fires to allow a plugin to do a complete takeover of Post by Email.
+ *
+ * @since 2.9.0
+ */
+do_action( 'wp-mail.php' );
+
+/** Get the POP3 class with which to access the mailbox. */
+require_once( ABSPATH . WPINC . '/class-pop3.php' );
+
+/** Only check at this interval for new messages. */
+if ( !defined('WP_MAIL_INTERVAL') )
+       define('WP_MAIL_INTERVAL', 300); // 5 minutes
+
+$last_checked = get_transient('mailserver_last_checked');
+
+if ( $last_checked )
+       wp_die(__('Slow down cowboy, no need to check for new mails so often!'));
+
+set_transient('mailserver_last_checked', true, WP_MAIL_INTERVAL);
+
+$time_difference = get_option('gmt_offset') * HOUR_IN_SECONDS;
 
 $phone_delim = '::';
 
 $pop3 = new POP3();
 
-if (!$pop3->connect(get_option('mailserver_url'), get_option('mailserver_port')))
-       wp_die(wp_specialchars($pop3->ERROR));
+if ( !$pop3->connect( get_option('mailserver_url'), get_option('mailserver_port') ) || !$pop3->user( get_option('mailserver_login') ) )
+       wp_die( esc_html( $pop3->ERROR ) );
+
+$count = $pop3->pass( get_option('mailserver_pass') );
 
-if (!$pop3->user(get_option('mailserver_login')))
-       wp_die(wp_specialchars($pop3->ERROR));
+if( false === $count )
+       wp_die( esc_html( $pop3->ERROR ) );
 
-$count = $pop3->pass(get_option('mailserver_pass'));
-if (false === $count)
-       wp_die(wp_specialchars($pop3->ERROR));
-if (0 == $count)
-       echo "<p>There doesn't seem to be any new mail.</p>\n"; // will fall-through to end of for loop
+if( 0 === $count ) {
+       $pop3->quit();
+       wp_die( __('There doesn&#8217;t seem to be any new mail.') );
+}
 
-for ($i=1; $i <= $count; $i++) :
+for ( $i = 1; $i <= $count; $i++ ) {
 
        $message = $pop3->get($i);
 
+       $bodysignal = false;
+       $boundary = '';
+       $charset = '';
        $content = '';
        $content_type = '';
        $content_transfer_encoding = '';
-       $boundary = '';
-       $bodysignal = 0;
        $post_author = 1;
        $author_found = false;
-       $dmonths = array('Jan', 'Feb', 'Mar', 'Apr', 'May', 'Jun', 'Jul', 'Aug', 'Sep', 'Oct', 'Nov', 'Dec');
-       foreach ($message as $line) :
-               if (strlen($line) < 3) $bodysignal = 1;
-
-               if ($bodysignal) {
+       foreach ($message as $line) {
+               // Body signal.
+               if ( strlen($line) < 3 )
+                       $bodysignal = true;
+               if ( $bodysignal ) {
                        $content .= $line;
                } else {
-                       if (preg_match('/Content-Type: /i', $line)) {
+                       if ( preg_match('/Content-Type: /i', $line) ) {
                                $content_type = trim($line);
-                               $content_type = substr($content_type, 14, strlen($content_type)-14);
+                               $content_type = substr($content_type, 14, strlen($content_type) - 14);
                                $content_type = explode(';', $content_type);
+                               if ( ! empty( $content_type[1] ) ) {
+                                       $charset = explode('=', $content_type[1]);
+                                       $charset = ( ! empty( $charset[1] ) ) ? trim($charset[1]) : '';
+                               }
                                $content_type = $content_type[0];
                        }
-                       if (preg_match('/Content-Transfer-Encoding: /i', $line)) {
+                       if ( preg_match('/Content-Transfer-Encoding: /i', $line) ) {
                                $content_transfer_encoding = trim($line);
-                               $content_transfer_encoding = substr($content_transfer_encoding, 27, strlen($content_transfer_encoding)-14);
+                               $content_transfer_encoding = substr($content_transfer_encoding, 27, strlen($content_transfer_encoding) - 27);
                                $content_transfer_encoding = explode(';', $content_transfer_encoding);
                                $content_transfer_encoding = $content_transfer_encoding[0];
                        }
-                       if (($content_type == 'multipart/alternative') && (preg_match('/boundary="/', $line)) && ($boundary == '')) {
+                       if ( ( $content_type == 'multipart/alternative' ) && ( false !== strpos($line, 'boundary="') ) && ( '' == $boundary ) ) {
                                $boundary = trim($line);
                                $boundary = explode('"', $boundary);
                                $boundary = $boundary[1];
                        }
                        if (preg_match('/Subject: /i', $line)) {
                                $subject = trim($line);
-                               $subject = substr($subject, 9, strlen($subject)-9);
-                               $subject = wp_iso_descrambler($subject);
+                               $subject = substr($subject, 9, strlen($subject) - 9);
                                // Captures any text in the subject before $phone_delim as the subject
+                               if ( function_exists('iconv_mime_decode') ) {
+                                       $subject = iconv_mime_decode($subject, 2, get_option('blog_charset'));
+                               } else {
+                                       $subject = wp_iso_descrambler($subject);
+                               }
                                $subject = explode($phone_delim, $subject);
                                $subject = $subject[0];
                        }
 
-                       // Set the author using the email address (From or Reply-To, the last used)
-                       // otherwise use the site admin
-                       if ( preg_match('/(From|Reply-To): /', $line) )  {
+                       /*
+                        * Set the author using the email address (From or Reply-To, the last used)
+                        * otherwise use the site admin.
+                        */
+                       if ( ! $author_found && preg_match( '/^(From|Reply-To): /', $line ) ) {
                                if ( preg_match('|[a-z0-9_.-]+@[a-z0-9_.-]+(?!.*<)|i', $line, $matches) )
                                        $author = $matches[0];
                                else
                                        $author = trim($line);
                                $author = sanitize_email($author);
                                if ( is_email($author) ) {
-                                       echo "Author = {$author} <p>";
-                                       $userdata = get_user_by_email($author);
-                                       if (!$userdata) {
-                                               $post_author = 1;
-                                               $author_found = false;
-                                       } else {
+                                       echo '<p>' . sprintf(__('Author is %s'), $author) . '</p>';
+                                       $userdata = get_user_by('email', $author);
+                                       if ( ! empty( $userdata ) ) {
                                                $post_author = $userdata->ID;
                                                $author_found = true;
                                        }
-                               } else {
-                                       $post_author = 1;
-                                       $author_found = false;
                                }
                        }
 
-                       if (preg_match('/Date: /i', $line)) { // of the form '20 Mar 2002 20:32:37'
-                               $ddate = trim($line);
-                               $ddate = str_replace('Date: ', '', $ddate);
-                               if (strpos($ddate, ',')) {
-                                       $ddate = trim(substr($ddate, strpos($ddate, ',')+1, strlen($ddate)));
-                               }
-                               $date_arr = explode(' ', $ddate);
-                               $date_time = explode(':', $date_arr[3]);
-
-                               $ddate_H = $date_time[0];
-                               $ddate_i = $date_time[1];
-                               $ddate_s = $date_time[2];
-
-                               $ddate_m = $date_arr[1];
-                               $ddate_d = $date_arr[0];
-                               $ddate_Y = $date_arr[2];
-                               for ($j=0; $j<12; $j++) {
-                                       if ($ddate_m == $dmonths[$j]) {
-                                               $ddate_m = $j+1;
-                                       }
-                               }
-
-                               $time_zn = intval($date_arr[4]) * 36;
-                               $ddate_U = gmmktime($ddate_H, $ddate_i, $ddate_s, $ddate_m, $ddate_d, $ddate_Y);
-                               $ddate_U = $ddate_U - $time_zn;
-                               $post_date = gmdate('Y-m-d H:i:s', $ddate_U + $time_difference);
-                               $post_date_gmt = gmdate('Y-m-d H:i:s', $ddate_U);
+                       if ( preg_match( '/Date: /i', $line ) ) { // of the form '20 Mar 2002 20:32:37 +0100'
+                               $ddate = str_replace( 'Date: ', '', trim( $line ) );
+                               $ddate = preg_replace( '!\s*\(.+\)\s*$!', '', $ddate ); // remove parenthesised timezone string if it exists, as this confuses strtotime
+                               $ddate_U = strtotime( $ddate );
+                               $post_date = gmdate( 'Y-m-d H:i:s', $ddate_U + $time_difference );
+                               $post_date_gmt = gmdate( 'Y-m-d H:i:s', $ddate_U );
                        }
                }
-       endforeach;
+       }
 
        // Set $post_status based on $author_found and on author's publish_posts capability
-       if ($author_found) {
+       if ( $author_found ) {
                $user = new WP_User($post_author);
-               if ($user->has_cap('publish_posts'))
-                       $post_status = 'publish';
-               else
-                       $post_status = 'pending';
+               $post_status = ( $user->has_cap('publish_posts') ) ? 'publish' : 'pending';
        } else {
-               // Author not found in DB, set status to pending.  Author already set to admin.
+               // Author not found in DB, set status to pending. Author already set to admin.
                $post_status = 'pending';
        }
 
        $subject = trim($subject);
 
-       if ($content_type == 'multipart/alternative') {
+       if ( $content_type == 'multipart/alternative' ) {
                $content = explode('--'.$boundary, $content);
                $content = $content[2];
-               $content = explode('Content-Transfer-Encoding: quoted-printable', $content);
-               $content = strip_tags($content[1], '<img><p><br><i><b><u><em><strong><strike><font><span><div>');
+
+               // Match case-insensitive content-transfer-encoding.
+               if ( preg_match( '/Content-Transfer-Encoding: quoted-printable/i', $content, $delim) ) {
+                       $content = explode($delim[0], $content);
+                       $content = $content[1];
+               }
+               $content = strip_tags($content, '<img><p><br><i><b><u><em><strong><strike><font><span><div>');
        }
        $content = trim($content);
 
-       if (stripos($content_transfer_encoding, "quoted-printable") !== false) {
+       /**
+        * Filters the original content of the email.
+        *
+        * Give Post-By-Email extending plugins full access to the content, either
+        * the raw content, or the content of the last quoted-printable section.
+        *
+        * @since 2.8.0
+        *
+        * @param string $content The original email content.
+        */
+       $content = apply_filters( 'wp_mail_original_content', $content );
+
+       if ( false !== stripos($content_transfer_encoding, "quoted-printable") ) {
                $content = quoted_printable_decode($content);
        }
 
+       if ( function_exists('iconv') && ! empty( $charset ) ) {
+               $content = iconv($charset, get_option('blog_charset'), $content);
+       }
+
        // Captures any text in the body after $phone_delim as the body
        $content = explode($phone_delim, $content);
-       $content[1] ? $content = $content[1] : $content = $content[0];
+       $content = empty( $content[1] ) ? $content[0] : $content[1];
 
        $content = trim($content);
 
-       $post_content = apply_filters('phone_content', $content);
+       /**
+        * Filters the content of the post submitted by email before saving.
+        *
+        * @since 1.2.0
+        *
+        * @param string $content The email content.
+        */
+       $post_content = apply_filters( 'phone_content', $content );
 
        $post_title = xmlrpc_getposttitle($content);
 
        if ($post_title == '') $post_title = $subject;
 
-       if (empty($post_categories)) $post_categories[] = get_option('default_email_category');
-
-       $post_category = $post_categories;
+       $post_category = array(get_option('default_email_category'));
 
        $post_data = compact('post_content','post_title','post_date','post_date_gmt','post_author','post_category', 'post_status');
-       $post_data = add_magic_quotes($post_data);
+       $post_data = wp_slash($post_data);
 
        $post_ID = wp_insert_post($post_data);
        if ( is_wp_error( $post_ID ) )
                echo "\n" . $post_ID->get_error_message();
 
-       if (!$post_ID) {
-               // we couldn't post, for whatever reason. better move forward to the next email
+       // We couldn't post, for whatever reason. Better move forward to the next email.
+       if ( empty( $post_ID ) )
                continue;
-       }
 
-       do_action('publish_phone', $post_ID);
+       /**
+        * Fires after a post submitted by email is published.
+        *
+        * @since 1.2.0
+        *
+        * @param int $post_ID The post ID.
+        */
+       do_action( 'publish_phone', $post_ID );
 
-       echo "\n<p><b>Author:</b> " . wp_specialchars($post_author) . "</p>";
-       echo "\n<p><b>Posted title:</b> " . wp_specialchars($post_title) . "<br />";
+       echo "\n<p><strong>" . __( 'Author:' ) . '</strong> ' . esc_html( $post_author ) . '</p>';
+       echo "\n<p><strong>" . __( 'Posted title:' ) . '</strong> ' . esc_html( $post_title ) . '</p>';
 
        if(!$pop3->delete($i)) {
-               echo '<p>Oops '.wp_specialchars($pop3->ERROR).'</p></div>';
+               echo '<p>' . sprintf(
+                       /* translators: %s: POP3 error */
+                       __( 'Oops: %s' ),
+                       esc_html( $pop3->ERROR )
+               ) . '</p>';
                $pop3->reset();
                exit;
        } else {
-               echo "<p>Mission complete, message <strong>$i</strong> deleted.</p>";
+               echo '<p>' . sprintf(
+                       /* translators: %s: the message ID */
+                       __( 'Mission complete. Message %s deleted.' ),
+                       '<strong>' . $i . '</strong>'
+               ) . '</p>';
        }
 
-endfor;
+}
 
 $pop3->quit();
-
-?>