From 6c68cbde375cd425ed98c037e2fa964aca552744 Mon Sep 17 00:00:00 2001
From: alecpl <alec@alec.pl>
Date: Thu, 20 Jan 2011 02:39:26 -0500
Subject: [PATCH] - Fix handling of comments inside an email address spec. (#1487673)
---
program/include/rcube_imap.php | 82 ++++++++++++++++++++++++++++++++++++++++-
1 files changed, 80 insertions(+), 2 deletions(-)
diff --git a/program/include/rcube_imap.php b/program/include/rcube_imap.php
index fa79983..cab232d 100644
--- a/program/include/rcube_imap.php
+++ b/program/include/rcube_imap.php
@@ -4696,10 +4696,13 @@
private function _parse_address_list($str, $decode=true)
{
// remove any newlines and carriage returns before
- $a = rcube_explode_quoted_string('[,;]', preg_replace( "/[\r\n]/", " ", $str));
+ $str = preg_replace('/\r?\n(\s|\t)?/', ' ', $str);
+
+ // extract list items, remove comments
+ $str = self::explode_header_string(',;', $str, true);
$result = array();
- foreach ($a as $key => $val) {
+ foreach ($str as $key => $val) {
$name = '';
$address = '';
$val = trim($val);
@@ -4741,6 +4744,81 @@
/**
+ * Explodes header (e.g. address-list) string into array of strings
+ * using specified separator characters with proper handling
+ * of quoted-strings and comments (RFC2822)
+ *
+ * @param string $separator String containing separator characters
+ * @param string $str Header string
+ * @param bool $remove_comments Enable to remove comments
+ *
+ * @return array Header items
+ */
+ static function explode_header_string($separator, $str, $remove_comments=false)
+ {
+ $length = strlen($str);
+ $result = array();
+ $quoted = false;
+ $comment = 0;
+ $out = '';
+
+ for ($i=0; $i<$length; $i++) {
+ // we're inside a quoted string
+ if ($quoted) {
+ if ($str[$i] == '"') {
+ $quoted = false;
+ }
+ else if ($str[$i] == '\\') {
+ if ($comment <= 0) {
+ $out .= '\\';
+ }
+ $i++;
+ }
+ }
+ // we're inside a comment string
+ else if ($comment > 0) {
+ if ($str[$i] == ')') {
+ $comment--;
+ }
+ else if ($str[$i] == '(') {
+ $comment++;
+ }
+ else if ($str[$i] == '\\') {
+ $i++;
+ }
+ continue;
+ }
+ // separator, add to result array
+ else if (strpos($separator, $str[$i]) !== false) {
+ if ($out) {
+ $result[] = $out;
+ }
+ $out = '';
+ continue;
+ }
+ // start of quoted string
+ else if ($str[$i] == '"') {
+ $quoted = true;
+ }
+ // start of comment
+ else if ($remove_comments && $str[$i] == '(') {
+ $comment++;
+ }
+
+ if ($comment <= 0) {
+ $out .= $str[$i];
+ }
+ }
+
+ if ($out && $comment <= 0) {
+ $result[] = $out;
+ }
+
+ return $result;
+ }
+
+
+ /**
* This is our own debug handler for the IMAP connection
* @access public
*/
--
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