Dropbox adalah solusi penyimpanan dokumen dan file online lintas perangkat dengan satu akun, sehingga pemilik akun dapat mengakses file-file diberbagai perangkat PC, notebook, netbook, iPad, mobile dll. Dropbox sendiri sudah menyediakan aplikasi-aplikasi bawaan khusus untuk perangkat yang akan digunakan. Bagaimana jika kita ingin mencadangkan sebuah file/dokumen dalam server kita ke akun dropbox dengan aplikasi berbasis PHP? Caranya mudah, Dropbox telah menyediakan PHP DropboxUploader. Untuk menggunakannya, contoh: [sourcecode language="php"] require 'DropboxUploader.php'; $uploader = new DropboxUploader('email.address.used.to.log.in.to.dropbox@example.com', 'dropbox-password'); $uploader->upload('file-to-be-uploaded', 'destination-folder-in-dropbox'); [/sourcecode] Sedangkan berkas Dropbox Uploader sendiri sebagai berikut: [sourcecode language="php"] <?php /** * Dropbox Uploader * * Copyright (c) 2009 Jaka Jancar * * Permission is hereby granted, free of charge, to any person obtaining a copy * of this software and associated documentation files (the "Software"), to deal * in the Software without restriction, including without limitation the rights * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell * copies of the Software, and to permit persons to whom the Software is * furnished to do so, subject to the following conditions: * * The above copyright notice and this permission notice shall be included in * all copies or substantial portions of the Software. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN * THE SOFTWARE. * * @author Jaka Jancar [jaka@kubje.org] [http://jaka.kubje.org/] * @version 1.1.5 */ class DropboxUploader { protected $email; protected $password; protected $caCertSourceType = self::CACERT_SOURCE_SYSTEM; const CACERT_SOURCE_SYSTEM = 0; const CACERT_SOURCE_FILE = 1; const CACERT_SOURCE_DIR = 2; protected $caCertSource; protected $loggedIn = false; protected $cookies = array(); /** * Constructor * * @param string $email * @param string|null $password */ public function __construct($email, $password) { // Check requirements if (!extension_loaded('curl')) throw new Exception('DropboxUploader requires the cURL extension.'); $this->email = $email; $this->password = $password; } public function setCaCertificateFile($file) { $this->caCertSourceType = self::CACERT_SOURCE_FILE; $this->caCertSource = $file; } public function setCaCertificateDir($dir) { $this->caCertSourceType = self::CACERT_SOURCE_DIR; $this->caCertSource = $dir; } public function upload($filename, $remoteDir='/') { if (!file_exists($filename) or !is_file($filename) or !is_readable($filename)) throw new Exception("File '$filename' does not exist or is not readable."); if (!is_string($remoteDir)) throw new Exception("Remote directory must be a string, is ".gettype($remoteDir)." instead."); if (!$this->loggedIn) $this->login(); $data = $this->request('https://www.dropbox.com/home'); $token = $this->extractToken($data, 'https://dl-web.dropbox.com/upload'); $data = $this->request('https://dl-web.dropbox.com/upload', true, array('plain'=>'yes', 'file'=>'@'.$filename, 'dest'=>$remoteDir, 't'=>$token)); if (strpos($data, 'HTTP/1.1 302 FOUND') === false) throw new Exception('Upload failed!'); } protected function login() { $data = $this->request('https://www.dropbox.com/login'); $token = $this->extractToken($data, '/login'); $data = $this->request('https://www.dropbox.com/login', true, array('login_email'=>$this->email, 'login_password'=>$this->password, 't'=>$token)); if (stripos($data, 'location: /home') === false) throw new Exception('Login unsuccessful.'); $this->loggedIn = true; } protected function request($url, $post=false, $postData=array()) { $ch = curl_init(); curl_setopt($ch, CURLOPT_URL, $url); curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, 2); curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, true); switch ($this->caCertSourceType) { case self::CACERT_SOURCE_FILE: curl_setopt($ch, CURLOPT_CAINFO, $this->caCertSource); break; case self::CACERT_SOURCE_DIR: curl_setopt($ch, CURLOPT_CAPATH, $this->caCertSource); break; } curl_setopt($ch, CURLOPT_HEADER, 1); curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1); if ($post) { curl_setopt($ch, CURLOPT_POST, $post); curl_setopt($ch, CURLOPT_POSTFIELDS, $postData); } // Send cookies $rawCookies = array(); foreach ($this->cookies as $k=>$v) $rawCookies[] = "$k=$v"; $rawCookies = implode(';', $rawCookies); curl_setopt($ch, CURLOPT_COOKIE, $rawCookies); $data = curl_exec($ch); if ($data === false) throw new Exception('Cannot execute request: '.curl_error($ch)); // Store received cookies preg_match_all('/Set-Cookie: ([^=]+)=(.*?);/i', $data, $matches, PREG_SET_ORDER); foreach ($matches as $match) $this->cookies[$match[1]] = $match[2]; curl_close($ch); return $data; } protected function extractToken($html, $formAction) { if (!preg_match('/<form [^>]*'.preg_quote($formAction, '/').'[^>]*>.*?(<input [^>]*name="t" [^>]*value="(.*?)"[^>]*>).*?<\/form>/is', $html, $matches) || !isset($matches[2])) throw new Exception("Cannot extract token! (form action=$formAction)"); return $matches[2]; } } [/sourcecode] atau Unduh dari file berikut DropboxUploader.php (klik kanan save-as)