From ed302bbbedaca1d0fd71b0cbc2b6136a12f75dd4 Mon Sep 17 00:00:00 2001 From: alecpl Date: Fri, 10 Sep 2010 10:44:02 +0000 Subject: - Code improvements + more infinite loop prevention --- program/include/rcube_imap_generic.php | 83 ++++++++++++++-------------------- 1 file changed, 33 insertions(+), 50 deletions(-) (limited to 'program/include/rcube_imap_generic.php') diff --git a/program/include/rcube_imap_generic.php b/program/include/rcube_imap_generic.php index a70cbaa67..2dc1e3750 100644 --- a/program/include/rcube_imap_generic.php +++ b/program/include/rcube_imap_generic.php @@ -119,7 +119,7 @@ class rcube_imap_generic { } - private function putLine($string, $endln=true) + function putLine($string, $endln=true) { if (!$this->fp) return false; @@ -128,11 +128,18 @@ class rcube_imap_generic write_log('imap', 'C: '. rtrim($string)); } - return fputs($this->fp, $string . ($endln ? "\r\n" : '')); + $res = fwrite($this->fp, $string . ($endln ? "\r\n" : '')); + + if ($res === false) { + @fclose($this->fp); + $this->fp = null; + } + + return $res; } // $this->putLine replacement with Command Continuation Requests (RFC3501 7.5) support - private function putLineC($string, $endln=true) + function putLineC($string, $endln=true) { if (!$this->fp) return false; @@ -166,7 +173,7 @@ class rcube_imap_generic return $res; } - private function readLine($size=1024) + function readLine($size=1024) { $line = ''; @@ -199,7 +206,7 @@ class rcube_imap_generic return $line; } - private function multLine($line, $escape=false) + function multLine($line, $escape=false) { $line = rtrim($line); if (preg_match('/\{[0-9]+\}$/', $line)) { @@ -220,7 +227,7 @@ class rcube_imap_generic return $line; } - private function readBytes($bytes) + function readBytes($bytes) { $data = ''; $len = 0; @@ -242,7 +249,7 @@ class rcube_imap_generic } // don't use it in loops, until you exactly know what you're doing - private function readReply(&$untagged=null) + function readReply(&$untagged=null) { do { $line = trim($this->readLine(1024)); @@ -257,7 +264,7 @@ class rcube_imap_generic return $line; } - private function parseResult($string) + function parseResult($string) { $a = explode(' ', trim($string)); if (count($a) >= 2) { @@ -278,7 +285,7 @@ class rcube_imap_generic } // check if $string starts with $match (or * BYE/BAD) - private function startsWith($string, $match, $error=false, $nonempty=false) + function startsWith($string, $match, $error=false, $nonempty=false) { $len = strlen($match); if ($len == 0) { @@ -303,31 +310,6 @@ class rcube_imap_generic return false; } - private function startsWithI($string, $match, $error=false, $nonempty=false) - { - $len = strlen($match); - if ($len == 0) { - return false; - } - if (!$this->fp) { - return true; - } - if (strncasecmp($string, $match, $len) == 0) { - return true; - } - if ($error && preg_match('/^\* (BYE|BAD) /i', $string, $m)) { - if (strtoupper($m[1]) == 'BYE') { - @fclose($this->fp); - $this->fp = null; - } - return true; - } - if ($nonempty && !strlen($string)) { - return true; - } - return false; - } - function getCapability($name) { if (in_array($name, $this->capability)) { @@ -346,14 +328,10 @@ class rcube_imap_generic } do { $line = trim($this->readLine(1024)); - $a = explode(' ', $line); - if ($line[0] == '*') { - while (list($k, $w) = each($a)) { - if ($w != '*' && $w != 'CAPABILITY') - $this->capability[] = strtoupper($w); - } - } - } while ($a[0] != 'cp01'); + if (preg_match('/^\* CAPABILITY (.+)/i', $line, $matches)) { + $this->capability = explode(' ', strtoupper($matches[1])); + } + } while (!$this->startsWith($line, 'cp01', true)); $this->capability_readed = true; @@ -454,7 +432,7 @@ class rcube_imap_generic } do { $line = $this->readLine(1024); - if ($this->startsWith($line, '* NAMESPACE')) { + if (preg_match('/^\* NAMESPACE/', $line)) { $i = 0; $line = $this->unEscape($line); $data = $this->parseNamespace(substr($line,11), $i, 0, 0); @@ -532,7 +510,7 @@ class rcube_imap_generic do { $line = $this->readLine(1024); - if ($this->startsWith($line, '* NAMESPACE')) { + if (preg_match('/^\* NAMESPACE/', $line)) { $i = 0; $line = $this->unEscape($line); $data = $this->parseNamespace(substr($line,11), $i, 0, 0); @@ -655,7 +633,7 @@ class rcube_imap_generic $this->putLine("tls0 STARTTLS"); $line = $this->readLine(4096); - if (!$this->startsWith($line, "tls0 OK")) { + if (!preg_match('/^tls0 OK/', $line)) { $this->error = "Server responded to STARTTLS with: $line"; $this->errornum = -2; return false; @@ -824,7 +802,8 @@ class rcube_imap_generic $add = $this->compressMessageSet(join(',', $add)); $command = "s ".$is_uid."SORT ($field) $encoding ALL"; - $line = $data = ''; + $line = ''; + $data = ''; if (!empty($add)) $command .= ' '.$add; @@ -834,7 +813,7 @@ class rcube_imap_generic } do { $line = rtrim($this->readLine()); - if ($this->startsWith($line, '* SORT')) { + if (!$data && preg_match('/^\* SORT/', $line)) { $data .= substr($line, 7); } else if (preg_match('/^[0-9 ]+$/', $line)) { $data .= $line; @@ -1562,7 +1541,7 @@ class rcube_imap_generic } do { $line = trim($this->readLine()); - if ($this->startsWith($line, '* THREAD')) { + if (!$data && preg_match('/^\* THREAD/', $line)) { $data .= substr($line, 9); } else if (preg_match('/^[0-9() ]+$/', $line)) { $data .= $line; @@ -1603,7 +1582,7 @@ class rcube_imap_generic do { $line = trim($this->readLine()); - if ($this->startsWith($line, '* SEARCH')) { + if (!$data && preg_match('/^\* SEARCH/', $line)) { $data .= substr($line, 8); } else if (preg_match('/^[0-9 ]+$/', $line)) { $data .= $line; @@ -1816,6 +1795,10 @@ class rcube_imap_generic while ($bytes > 0) { $line = $this->readLine(1024); + + if ($line === NULL) + break; + $len = strlen($line); if ($len > $bytes) { @@ -2106,7 +2089,7 @@ class rcube_imap_generic if ($this->putLine('QUOT1 GETQUOTAROOT "INBOX"')) { do { $line = rtrim($this->readLine(5000)); - if ($this->startsWith($line, '* QUOTA ')) { + if (preg_match('/^\* QUOTA /', $line)) { $quota_lines[] = $line; } } while (!$this->startsWith($line, 'QUOT1', true, true)); -- cgit v1.2.3