Fix bugs caught by static analysis

Aleksander Machniak

2013-05-06 c027ba7709a86c23038428de15ffed503e67c522

 program/lib/Roundcube/rcube_imap_generic.php

@@ -1077,7 +1077,7 @@
        }

        if (!$this->data['READ-WRITE']) {
            $this->setError(self::ERROR_READONLY, "Mailbox is read-only", 'EXPUNGE');
            $this->setError(self::ERROR_READONLY, "Mailbox is read-only");
            return false;
        }

@@ -1936,7 +1936,7 @@
        }

        if (!$this->data['READ-WRITE']) {
            $this->setError(self::ERROR_READONLY, "Mailbox is read-only", 'STORE');
            $this->setError(self::ERROR_READONLY, "Mailbox is read-only");
            return false;
        }

@@ -1997,7 +1997,7 @@
        }

        if (!$this->data['READ-WRITE']) {
            $this->setError(self::ERROR_READONLY, "Mailbox is read-only", 'STORE');
            $this->setError(self::ERROR_READONLY, "Mailbox is read-only");
            return false;
        }

@@ -2508,7 +2508,7 @@
                $tokens = $this->tokenizeResponse(preg_replace('/(^\(|\)$)/', '', $line));

                for ($i=0; $i<count($tokens); $i+=2) {
                    if (preg_match('/^(BODY|BINARY)/i', $token)) {
                    if (preg_match('/^(BODY|BINARY)/i', $tokens[$i])) {
                        $result = $tokens[$i+1];
                        $found  = true;
                        break;