codice:
<?php 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 = $dir; } public function upload($source, $remoteDir='/', $remoteName=null) { if (!file_exists($source) or !is_file($source) or !is_readable($source)) throw new Exception("File '$source' does not exist or is not readable."); if (!is_string($remoteDir)) throw new Exception("Remote directory must be a string, is ".gettype($remoteDir)." instead."); if (is_null($remoteName)) { $remoteName = $source; } else if (!is_string($remoteName)) { throw new Exception("Remote filename 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'); $postdata = array('plain'=>'yes', 'file'=>'@'.$source.';filename='.$remoteName, 'dest'=>$remoteDir, 't'=>$token); $data = $this->request('https://dl-web.dropbox.com/upload', true, $postdata); if (strpos($data, 'HTTP/1.1 302 FOUND') === false) throw new Exception('Upload failed!'); } protected function login() { $data = $this->request('https://www.dropbox.com/login'); $data = $this->request('https://www.dropbox.com/login', true, array('login_email'=>$this->email, 'login_password'=>$this->password)); if (stripos($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]; } }?>
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