/**
* Get the S3 response
* @param $url override the target URL
*
* @return object | false
*/
public function getResponse($url = '')
{
$query = '';
if (sizeof($this->parameters) > 0) {
$query = substr($this->uri, -1) !== '?' ? '?' : '&';
foreach ($this->parameters as $var => $value) {
if ($value == null || $value == '') {
$query .= $var . '&';
} else {
$query .= $var . '=' . rawurlencode($value) . '&';
}
}
$query = substr($query, 0, -1);
$this->uri .= $query;
if (array_key_exists('acl', $this->parameters) || array_key_exists('location', $this->parameters) || array_key_exists('torrent', $this->parameters) || array_key_exists('website', $this->parameters) || array_key_exists('logging', $this->parameters)) {
$this->resource .= $query;
}
}
if (empty($url)) {
$url = (GC::$useSSL ? 'https://' : 'http://') . ($this->headers['Host'] !== '' ? $this->headers['Host'] : $this->endpoint) . $this->uri;
}
//var_dump('bucket: ' . $this->bucket, 'uri: ' . $this->uri, 'resource: ' . $this->resource, 'url: ' . $url);
// Basic setup
$curl = curl_init();
curl_setopt($curl, CURLOPT_USERAGENT, 'S3/php');
if (GC::$useSSL) {
// SSL Validation can now be optional for those with broken OpenSSL installations
curl_setopt($curl, CURLOPT_SSL_VERIFYHOST, GC::$useSSLValidation ? 1 : 0);
curl_setopt($curl, CURLOPT_SSL_VERIFYPEER, GC::$useSSLValidation ? 1 : 0);
if (GC::$sslKey !== null) {
curl_setopt($curl, CURLOPT_SSLKEY, GC::$sslKey);
}
if (GC::$sslCert !== null) {
curl_setopt($curl, CURLOPT_SSLCERT, GC::$sslCert);
}
if (GC::$sslCACert !== null) {
curl_setopt($curl, CURLOPT_CAINFO, GC::$sslCACert);
}
}
curl_setopt($curl, CURLOPT_URL, $url);
if (GC::$proxy != null && isset(GC::$proxy['host'])) {
curl_setopt($curl, CURLOPT_PROXY, GC::$proxy['host']);
curl_setopt($curl, CURLOPT_PROXYTYPE, GC::$proxy['type']);
if (isset(GC::$proxy['user'], GC::$proxy['pass']) && GC::$proxy['user'] != null && GC::$proxy['pass'] != null) {
curl_setopt($curl, CURLOPT_PROXYUSERPWD, sprintf('%s:%s', GC::$proxy['user'], GC::$proxy['pass']));
}
}
// Headers
$headers = array();
$amz = array();
foreach ($this->amzHeaders as $header => $value) {
if (strlen($value) > 0) {
$headers[] = $header . ': ' . $value;
}
}
foreach ($this->headers as $header => $value) {
if (strlen($value) > 0) {
$headers[] = $header . ': ' . $value;
}
}
// Collect AMZ headers for signature
foreach ($this->amzHeaders as $header => $value) {
if (strlen($value) > 0) {
$amz[] = strtolower($header) . ':' . $value;
}
}
// AMZ headers must be sorted
if (sizeof($amz) > 0) {
//sort($amz);
usort($amz, array(&$this, '__sortMetaHeadersCmp'));
$amz = "\n" . implode("\n", $amz);
} else {
$amz = '';
}
if (GC::hasAuth()) {
// Authorization string (CloudFront stringToSign should only contain a date)
if ($this->headers['Host'] == 'cloudfront.amazonaws.com') {
$headers[] = 'Authorization: ' . GC::__getSignature($this->headers['Date']);
} else {
$headers[] = 'Authorization: ' . GC::__getSignature($this->verb . "\n" . $this->headers['Content-MD5'] . "\n" . $this->headers['Content-Type'] . "\n" . $this->headers['Date'] . $amz . "\n" . $this->resource);
}
}
curl_setopt($curl, CURLOPT_HTTPHEADER, $headers);
curl_setopt($curl, CURLOPT_HEADER, false);
curl_setopt($curl, CURLOPT_RETURNTRANSFER, false);
curl_setopt($curl, CURLOPT_WRITEFUNCTION, array(&$this, '__responseWriteCallback'));
curl_setopt($curl, CURLOPT_HEADERFUNCTION, array(&$this, '__responseHeaderCallback'));
//curl_setopt($curl, CURLOPT_FOLLOWLOCATION, true);
// Request types
switch ($this->verb) {
case 'GET':
break;
case 'PUT':
case 'POST':
// POST only used for CloudFront
if ($this->fp !== false) {
curl_setopt($curl, CURLOPT_PUT, true);
curl_setopt($curl, CURLOPT_INFILE, $this->fp);
if ($this->size >= 0) {
curl_setopt($curl, CURLOPT_INFILESIZE, $this->size);
}
} elseif ($this->data !== false) {
curl_setopt($curl, CURLOPT_CUSTOMREQUEST, $this->verb);
curl_setopt($curl, CURLOPT_POSTFIELDS, $this->data);
} else {
curl_setopt($curl, CURLOPT_CUSTOMREQUEST, $this->verb);
}
break;
case 'HEAD':
curl_setopt($curl, CURLOPT_CUSTOMREQUEST, 'HEAD');
curl_setopt($curl, CURLOPT_NOBODY, true);
break;
case 'DELETE':
curl_setopt($curl, CURLOPT_CUSTOMREQUEST, 'DELETE');
break;
default:
break;
}
// Execute, grab errors
if (curl_exec($curl)) {
$this->response->code = curl_getinfo($curl, CURLINFO_HTTP_CODE);
} else {
$this->response->error = array('code' => curl_errno($curl), 'message' => curl_error($curl), 'resource' => $this->resource);
}
// workaround so we can avoid using CURLOPT_FOLLOWLOCATION, since some hosts disable it
if ($this->response->code == '301' or $this->response->code == '302') {
static $redirect_count = 0;
if (++$redirect_count > 5) {
throw new Exception('Redirect error for S3 library');
}
$info = curl_getinfo($curl);
if (!empty($info['redirect_url'])) {
return $this->getResponse($info['redirect_url']);
}
}
@curl_close($curl);
// Parse body into XML
if ($this->response->error === false && isset($this->response->headers['type']) && ($this->response->headers['type'] == 'application/xml' || $this->response->headers['type'] == 'application/xml; charset=UTF-8') && isset($this->response->body)) {
$this->response->body = simplexml_load_string($this->response->body);
// Grab S3 errors
if (!in_array($this->response->code, array(200, 204, 206)) && isset($this->response->body->Code, $this->response->body->Message)) {
$this->response->error = array('code' => (string) $this->response->body->Code, 'message' => (string) $this->response->body->Message);
if (isset($this->response->body->Resource)) {
$this->response->error['resource'] = (string) $this->response->body->Resource;
}
unset($this->response->body);
}
}
// Clean up file resources
if ($this->fp !== false && is_resource($this->fp)) {
fclose($this->fp);
}
return $this->response;
}
