/**
* 解压图片ID
* @param string $id 十六进制
* @param array
* <code>array(
* 'node_id',
* 'img_id',
* 'width',
* 'height',
* 'type',
* 'ext',
* )</code>
*/
function unpackId($id64)
{
if (strlen($id64) != 23) {
return false;
}
if (!self::$map64) {
$bmap = array();
for ($i = 0; $i < 64; $i++) {
$bmap[$i] = self::$base64[$i];
}
self::$map64 = $bmap = array_flip($bmap);
} else {
$bmap = self::$map64;
}
$id16 = '';
$bins = array();
for ($i = 0; $i < 23; $i += 4) {
$bins[] = $bmap[$id64[$i]] << 2 | $bmap[$id64[$i + 1]] >> 4;
$bins[] = ($bmap[$id64[$i + 1]] & 0xf) << 4 | $bmap[$id64[$i + 2]] >> 2;
if ($i < 20) {
$bins[] = ($bmap[$id64[$i + 2]] & 0x3) << 6 | $bmap[$id64[$i + 3]];
}
}
$type = $bins[16] & 0xf;
if (!isset($this->imageExts[$type])) {
return false;
}
$nodeId = $bins[0] << 8 | $bins[1];
$incrId = $bins[2] << 24 | $bins[3] << 16 | $bins[4] << 8 | $bins[5];
$blockId = $bins[6] << 16 | $bins[7] << 8 | $bins[8];
$fileId = $bins[9] << 24 | $bins[10] << 16 | $bins[11] << 8 | $bins[12];
$width = $bins[13] << 6 | $bins[14] >> 2;
$height = ($bins[14] & 0x3) << 12 | $bins[15] << 4 | $bins[16] >> 4;
return array('node_id' => $nodeId, 'incr_id' => $incrId, 'block_id' => $blockId, 'file_id' => $fileId, 'width' => $width, 'height' => $height, 'type' => $type, 'ext' => $this->imageExts[$type]);
}
function post_edit_action()
{
$data = $_POST['data'];
$api = new StorageExport();
$api->updateNode(intval($data['node_id']), $data);
header('Location: /guanli/node/');
}
/**
* 备份图片
*/
function post_backup_action()
{
$datas = $this->gets('img_id', 'from', 'blob');
$api = new StorageExport();
$api->doBackup($datas['img_id'], $datas['blob'], $datas['from']);
}