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v1.4 Dropbox support

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Leon 2017-03-12 17:54:22 +13:00
parent ed36c88897
commit 7e67a92645
52 changed files with 5913 additions and 4 deletions
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126
library/Dropbox/Curl.php Normal file
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<?php
namespace Dropbox;
/**
* A minimal wrapper around a cURL handle.
*
* @internal
*/
final class Curl
{
/** @var resource */
public $handle;
/** @var string[] */
private $headers = array();
/**
* @param string $url
*/
function __construct($url)
{
// Make sure there aren't any spaces in the URL (i.e. the caller forgot to URL-encode).
if (strpos($url, ' ') !== false) {
throw new \InvalidArgumentException("Found space in \$url; it should be encoded");
}
$this->handle = curl_init($url);
// NOTE: Though we turn on all the correct SSL settings, many PHP installations
// don't respect these settings. Run "examples/test-ssl.php" to run some basic
// SSL tests to see how well your PHP implementation behaves.
// Use our own certificate list.
$this->set(CURLOPT_SSL_VERIFYPEER, true); // Enforce certificate validation
$this->set(CURLOPT_SSL_VERIFYHOST, 2); // Enforce hostname validation
// Force the use of TLS (SSL v2 and v3 are not secure).
// TODO: Use "CURL_SSLVERSION_TLSv1" instead of "1" once we can rely on PHP 5.5+.
$this->set(CURLOPT_SSLVERSION, 1);
// Limit the set of ciphersuites used.
global $sslCiphersuiteList;
if ($sslCiphersuiteList !== null) {
$this->set(CURLOPT_SSL_CIPHER_LIST, $sslCiphersuiteList);
}
list($rootCertsFilePath, $rootCertsFolderPath) = RootCertificates::getPaths();
// Certificate file.
$this->set(CURLOPT_CAINFO, $rootCertsFilePath);
// Certificate folder. If not specified, some PHP installations will use
// the system default, even when CURLOPT_CAINFO is specified.
$this->set(CURLOPT_CAPATH, $rootCertsFolderPath);
// Limit vulnerability surface area. Supported in cURL 7.19.4+
if (defined('CURLOPT_PROTOCOLS')) $this->set(CURLOPT_PROTOCOLS, CURLPROTO_HTTPS);
if (defined('CURLOPT_REDIR_PROTOCOLS')) $this->set(CURLOPT_REDIR_PROTOCOLS, CURLPROTO_HTTPS);
}
/**
* @param string $header
*/
function addHeader($header)
{
$this->headers[] = $header;
}
function exec()
{
$this->set(CURLOPT_HTTPHEADER, $this->headers);
$body = curl_exec($this->handle);
if ($body === false) {
throw new Exception_NetworkIO("Error executing HTTP request: " . curl_error($this->handle));
}
$statusCode = curl_getinfo($this->handle, CURLINFO_HTTP_CODE);
return new HttpResponse($statusCode, $body);
}
/**
* @param int $option
* @param mixed $value
*/
function set($option, $value)
{
curl_setopt($this->handle, $option, $value);
}
function __destruct()
{
curl_close($this->handle);
}
}
// Different cURL SSL backends use different names for ciphersuites.
$curlVersion = \curl_version();
$curlSslBackend = $curlVersion['ssl_version'];
if (\substr_compare($curlSslBackend, "NSS/", 0, strlen("NSS/")) === 0) {
// Can't figure out how to reliably set ciphersuites for NSS.
$sslCiphersuiteList = null;
}
else {
// Use the OpenSSL names for all other backends. We may have to
// refine this if users report errors.
$sslCiphersuiteList =
'ECDHE-RSA-AES256-GCM-SHA384:'.
'ECDHE-RSA-AES128-GCM-SHA256:'.
'ECDHE-RSA-AES256-SHA384:'.
'ECDHE-RSA-AES128-SHA256:'.
'ECDHE-RSA-AES256-SHA:'.
'ECDHE-RSA-AES128-SHA:'.
'ECDHE-RSA-RC4-SHA:'.
'DHE-RSA-AES256-GCM-SHA384:'.
'DHE-RSA-AES128-GCM-SHA256:'.
'DHE-RSA-AES256-SHA256:'.
'DHE-RSA-AES128-SHA256:'.
'DHE-RSA-AES256-SHA:'.
'DHE-RSA-AES128-SHA:'.
'AES256-GCM-SHA384:'.
'AES128-GCM-SHA256:'.
'AES256-SHA256:'.
'AES128-SHA256:'.
'AES256-SHA:'.
'AES128-SHA';
}