Optimize SELECT response handling

Aleksander Machniak

2016-05-05 4921c21cff15b9ba2a5a05b2145861b01c9e85d6

Optimize SELECT response handling

 program/lib/Roundcube/rcube_imap_generic.php

@@ -1128,35 +1128,61 @@

            $response = explode("\r\n", $response);
            foreach ($response as $line) {
                if (preg_match('/^\* ([0-9]+) (EXISTS|RECENT)$/i', $line, $m)) {
                    $this->data[strtoupper($m[2])] = (int) $m[1];
                }
                else if (preg_match('/^\* OK \[/i', $line, $match)) {
                    $line = substr($line, 6);
                    if (preg_match('/^(UIDNEXT|UIDVALIDITY|UNSEEN) ([0-9]+)/i', $line, $match)) {
                        $this->data[strtoupper($match[1])] = (int) $match[2];
                    }
                    else if (preg_match('/^(HIGHESTMODSEQ) ([0-9]+)/i', $line, $match)) {
                        $this->data[strtoupper($match[1])] = (string) $match[2];
                    }
                    else if (preg_match('/^(NOMODSEQ)/i', $line, $match)) {
                        $this->data[strtoupper($match[1])] = true;
                    }
                    else if (preg_match('/^PERMANENTFLAGS \(([^\)]+)\)/iU', $line, $match)) {
                        $this->data['PERMANENTFLAGS'] = explode(' ', $match[1]);
                if (preg_match('/^\* OK \[/i', $line)) {
                    $pos   = strcspn($line, ' ]', 6);
                    $token = strtoupper(substr($line, 6, $pos));
                    $pos   += 7;

                    switch ($token) {
                    case 'UIDNEXT':
                    case 'UIDVALIDITY':
                    case 'UNSEEN':
                        if ($len = strspn($line, '0123456789', $pos)) {
                            $this->data[$token] = (int) substr($line, $pos, $len);
                        }
                        break;

                    case 'HIGHESTMODSEQ':
                        if ($len = strspn($line, '0123456789', $pos)) {
                            $this->data[$token] = (string) substr($line, $pos, $len);
                        }
                        break;

                    case 'NOMODSEQ':
                        $this->data[$token] = true;
                        break;

                    case 'PERMANENTFLAGS':
                        $start = strpos($line, '(', $pos);
                        $end   = strrpos($line, ')');
                        if ($start && $end) {
                            $flags = substr($line, $start + 1, $end - $start - 1);
                            $this->data[$token] = explode(' ', $flags);
                        }
                        break;
                    }
                }
                // QRESYNC FETCH response (RFC5162)
                else if (preg_match('/^\* ([0-9+]) FETCH/i', $line, $match)) {
                    $line       = substr($line, strlen($match[0]));
                    $fetch_data = $this->tokenizeResponse($line, 1);
                    $data       = array('id' => $match[1]);
                else if (preg_match('/^\* ([0-9]+) (EXISTS|RECENT|FETCH)/i', $line, $match)) {
                    $token = strtoupper($match[2]);
                    switch ($token) {
                    case 'EXISTS':
                    case 'RECENT':
                        $this->data[$token] = (int) $match[1];
                        break;

                    for ($i=0, $size=count($fetch_data); $i<$size; $i+=2) {
                        $data[strtolower($fetch_data[$i])] = $fetch_data[$i+1];
                    case 'FETCH':
                        // QRESYNC FETCH response (RFC5162)
                        $line       = substr($line, strlen($match[0]));
                        $fetch_data = $this->tokenizeResponse($line, 1);
                        $data       = array('id' => $match[1]);

                        for ($i=0, $size=count($fetch_data); $i<$size; $i+=2) {
                            $data[strtolower($fetch_data[$i])] = $fetch_data[$i+1];
                        }

                        $this->data['QRESYNC'][$data['uid']] = $data;
                        break;
                    }

                    $this->data['QRESYNC'][$data['uid']] = $data;
                }
                // QRESYNC VANISHED response (RFC5162)
                else if (preg_match('/^\* VANISHED [()EARLIER]*/i', $line, $match)) {