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<?php
namespace LeanCloud;
use LeanCloud\Client;
use LeanCloud\CloudException;
use LeanCloud\MIMEType;
use LeanCloud\Uploader\SimpleUploader;
class File {
private $_data;
private $_metaData;
private $_source;
public function __construct($name, $data=null, $mimeType=null) {
$this->_data["name"] = $name;
$this->_data["key"] = null;
$this->_source = $data;
if (!$mimeType) {
$ext = pathinfo($name, PATHINFO_EXTENSION);
$mimeType = MIMEType::getType($ext);
}
$this->_data["mime_type"] = $mimeType;
$this->_metaData["owner"] = "unknown";
if (User::$currentUser) {
$this->_metaData["owner"] = User::$currentUser->getObjectId();
}
if ($this->_source) {
$this->_metaData["size"] = strlen($this->_source);
}
}
public static function createWithUrl($name, $url, $mimeType=null) {
$file = new File($name, null, $mimeType);
$file->_data["url"] = $url;
$file->_metaData["__source"] = "external";
return $file;
}
public static function createWithData($name, $data, $mimeType=null) {
$file = new File($name, $data, $mimeType);
return $file;
}
public static function createWithLocalFile($filepath, $mimeType=null, $name=null) {
$content = file_get_contents($filepath);
if ($content === false) {
throw new \RuntimeException("Read file error at $filepath");
}
if (!$name) {
$name = basename($filepath);
}
return static::createWithData($name, $content, $mimeType);
}
public function get($key) {
if (isset($this->_data[$key])) {
return $this->_data[$key];
}
return null;
}
public function getName() {
return $this->get("name");
}
public function getKey() {
return $this->get("key");
}
public function setKey($val) {
$this->_data["key"] = $val;
return $this;
}
public function getObjectId() {
return $this->get("objectId");
}
public function getCreatedAt() {
return $this->get("createdAt");
}
public function getUpdatedAt() {
return $this->get("updatedAt");
}
public function getMimeType() {
return $this->get("mime_type");
}
public function getUrl() {
return $this->get("url");
}
public function getThumbUrl($width, $height, $quality=100,
$scaleToFit=true, $format="png") {
if (!$this->getUrl()) {
throw new \RuntimeException("File resource not available.");
}
if ($width < 0 || $height < 0) {
throw new \InvalidArgumentException("Width or height must".
" be positve.");
}
if ($quality > 100 || $quality < 0) {
throw new \InvalidArgumentException("Quality must be between".
" 0 and 100.");
}
$mode = $scaleToFit ? 2 : 1;
return $this->getUrl() . "?imageView/{$mode}/w/{$width}/h/{$height}".
"/q/{$quality}/format/{$format}";
}
public function getSize() {
return $this->getMeta("size");
}
public function getOwnerId() {
return $this->getMeta("owner");
}
public function setMeta($key, $val) {
$this->_metaData[$key] = $val;
return $this;
}
public function getMeta($key=null) {
if (!$key) {
return $this->_metaData;
}
if (isset($this->_metaData[$key])) {
return $this->_metaData[$key];
}
return null;
}
private function isExternal() {
return $this->getMeta("__source") === "external";
}
private function _mergeData($data, $meta=array()) {
forEach(array("createdAt", "updatedAt") as $key) {
if (isset($data[$key]) && is_string($data[$key])) {
$data[$key] = array("__type" => "Date",
"iso" => $data[$key]);
}
}
forEach($data as $key => $val) {
$this->_data[$key] = Client::decode($val, $key);
}
forEach($meta as $key => $val) {
$this->_metaData[$key] = Client::decode($val, $key);
}
}
public function mergeAfterSave($data) {
$meta = array();
if (isset($data["metaData"])) {
$meta = $data["metaData"];
unset($data["metaData"]);
}
if (isset($data["size"])) {
$meta["size"] = $data["size"];
unset($data["size"]);
}
$this->_mergeData($data, $meta);
}
public function mergeAfterFetch($data) {
$meta = array();
if (isset($data["metaData"])) {
$meta = $data["metaData"];
unset($data["metaData"]);
}
$this->_mergeData($data, $meta);
}
public function isDirty() {
$id = $this->getObjectId();
return empty($id);
}
public function save() {
if (!$this->isDirty()) {
return;
}
$data = array(
"name" => $this->getName(),
"ACL" => $this->get("ACL"),
"mime_type" => $this->getMimeType(),
"metaData" => $this->getMeta(),
);
if ($this->isExternal()) {
$data["url"] = $this->getUrl();
$resp = Client::post("/files", $data);
$this->mergeAfterSave($resp);
} else {
$key = $this->getKey();
if (isset($key)) {
$data["key"] = $key;
}
$data["__type"] = "File";
$resp = Client::post("/fileTokens", $data);
if (!isset($resp["token"])) {
$resp["token"] = null;
}
$callbackParams = array("token" => $resp["token"]);
try {
$uploader = SimpleUploader::createUploader($resp["provider"]);
$uploader->initialize($resp["upload_url"], $resp["token"]);
$uploader->upload($this->_source, $this->getMimeType(), $key);
$callbackParams["result"] = true;
} catch (\Exception $ex) {
$callbackParams["result"] = false;
throw $ex;
} finally {
try {
Client::post("/fileCallback", $callbackParams);
} catch (\Exception $ex) {
error_log("Request /fileCallback failed.");
}
}
forEach(array("upload_url", "token") as $k) {
if (isset($resp[$k])) {
unset($resp[$k]);
}
}
$this->mergeAfterSave($resp);
}
}
public static function fetch($objectId) {
$file = new File("");
$resp = Client::get("/files/{$objectId}");
$file->mergeAfterFetch($resp);
return $file;
}
public function destroy() {
if (!$this->getObjectId()) {
return false;
}
Client::delete("/files/{$this->getObjectId()}");
}
public function encode() {
if (!$this->getObjectId()) {
throw new \RuntimeException("Cannot serialize unsaved file.");
}
return array(
"__type" => "File",
"id" => $this->getObjectId(),
"name" => $this->getName(),
"url" => $this->getUrl()
);
}
}