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<?php
/**
* $Id: S3.php 47 2009-07-20 01:25:40Z don.schonknecht $
*
* Copyright (c) 2008, Donovan Schönknecht. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* - Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* - Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*
* Amazon S3 is a trademark of Amazon.com, Inc. or its affiliates.
*/
/**
* Amazon S3 PHP class
*
* @link http://undesigned.org.za/2007/10/22/amazon-s3-php-class
* @version 0.4.0
*/
class pb_backupbuddy_S3 {
// ACL flags
const ACL_PRIVATE = 'private';
const ACL_PUBLIC_READ = 'public-read';
const ACL_PUBLIC_READ_WRITE = 'public-read-write';
const ACL_AUTHENTICATED_READ = 'authenticated-read';
public static $useSSL = true;
private static $__accessKey; // AWS Access key
private static $__secretKey; // AWS Secret key
/**
* Constructor - if you're not using the class statically
*
* @param string $accessKey Access key
* @param string $secretKey Secret key
* @param boolean $useSSL Enable SSL
* @return void
*/
public function __construct($accessKey = null, $secretKey = null, $useSSL = true) {
if ($accessKey !== null && $secretKey !== null) {
self::setAuth($accessKey, $secretKey);
}
self::$useSSL = $useSSL;
if ( $useSSL === true ) {
pb_backupbuddy::status( 'details', 'Instantiated S3 with SSL enabled.' );
} else {
pb_backupbuddy::status( 'details', 'Instantiated S3 with SSL disabled.' );
}
} // End __construct().
/**
* Set AWS access key and secret key
*
* @param string $accessKey Access key
* @param string $secretKey Secret key
* @return void
*/
public static function setAuth($accessKey, $secretKey) {
self::$__accessKey = $accessKey;
self::$__secretKey = $secretKey;
}
/**
* Get a list of buckets
*
* @param boolean $detailed Returns detailed bucket list when true
* @return array | false
*/
public static function listBuckets($detailed = false) {
$rest = new pb_backupbuddy_S3Request('GET', '', '');
$rest = $rest->getResponse();
if ($rest->error === false && $rest->code !== 200)
$rest->error = array('code' => $rest->code, 'message' => 'Unexpected HTTP status');
if ($rest->error !== false) {
trigger_error(sprintf("pb_backupbuddy_S3::listBuckets(): [%s] %s", $rest->error['code'], $rest->error['message']), E_USER_WARNING);
return false;
}
$results = array();
if (!isset($rest->body->Buckets)) return $results;
if ($detailed) {
if (isset($rest->body->Owner, $rest->body->Owner->ID, $rest->body->Owner->DisplayName))
$results['owner'] = array(
'id' => (string)$rest->body->Owner->ID, 'name' => (string)$rest->body->Owner->ID
);
$results['buckets'] = array();
foreach ($rest->body->Buckets->Bucket as $b)
$results['buckets'][] = array(
'name' => (string)$b->Name, 'time' => strtotime((string)$b->CreationDate)
);
} else
foreach ($rest->body->Buckets->Bucket as $b) $results[] = (string)$b->Name;
return $results;
}
/*
* Get contents for a bucket
*
* If maxKeys is null this method will loop through truncated result sets
*
* @param string $bucket Bucket name
* @param string $prefix Prefix
* @param string $marker Marker (last file listed)
* @param string $maxKeys Max keys (maximum number of keys to return)
* @param string $delimiter Delimiter
* @param boolean $returnCommonPrefixes Set to true to return CommonPrefixes
* @return array | false
*/
public static function getBucket($bucket, $prefix = null, $marker = null, $maxKeys = null, $delimiter = null, $returnCommonPrefixes = false) {
$rest = new pb_backupbuddy_S3Request('GET', $bucket, '');
if ($prefix !== null && $prefix !== '') $rest->setParameter('prefix', $prefix);
if ($marker !== null && $marker !== '') $rest->setParameter('marker', $marker);
if ($maxKeys !== null && $maxKeys !== '') $rest->setParameter('max-keys', $maxKeys);
if ($delimiter !== null && $delimiter !== '') $rest->setParameter('delimiter', $delimiter);
$response = $rest->getResponse();
if ($response->error === false && $response->code !== 200)
$response->error = array('code' => $response->code, 'message' => 'Unexpected HTTP status');
if ($response->error !== false) {
trigger_error(sprintf("pb_backupbuddy_S3::getBucket(): [%s] %s", $response->error['code'], $response->error['message']), E_USER_WARNING);
return false;
}
$results = array();
$nextMarker = null;
if (isset($response->body, $response->body->Contents))
foreach ($response->body->Contents as $c) {
$results[(string)$c->Key] = array(
'name' => (string)$c->Key,
'time' => strtotime((string)$c->LastModified),
'size' => (int)$c->Size,
'hash' => substr((string)$c->ETag, 1, -1)
);
$nextMarker = (string)$c->Key;
}
if ($returnCommonPrefixes && isset($response->body, $response->body->CommonPrefixes))
foreach ($response->body->CommonPrefixes as $c)
$results[(string)$c->Prefix] = array('prefix' => (string)$c->Prefix);
if (isset($response->body, $response->body->IsTruncated) &&
(string)$response->body->IsTruncated == 'false') return $results;
if (isset($response->body, $response->body->NextMarker))
$nextMarker = (string)$response->body->NextMarker;
// Loop through truncated results if maxKeys isn't specified
if ($maxKeys == null && $nextMarker !== null && (string)$response->body->IsTruncated == 'true')
do {
$rest = new pb_backupbuddy_S3Request('GET', $bucket, '');
if ($prefix !== null && $prefix !== '') $rest->setParameter('prefix', $prefix);
$rest->setParameter('marker', $nextMarker);
if ($delimiter !== null && $delimiter !== '') $rest->setParameter('delimiter', $delimiter);
if (($response = $rest->getResponse(true)) == false || $response->code !== 200) break;
if (isset($response->body, $response->body->Contents))
foreach ($response->body->Contents as $c) {
$results[(string)$c->Key] = array(
'name' => (string)$c->Key,
'time' => strtotime((string)$c->LastModified),
'size' => (int)$c->Size,
'hash' => substr((string)$c->ETag, 1, -1)
);
$nextMarker = (string)$c->Key;
}
if ($returnCommonPrefixes && isset($response->body, $response->body->CommonPrefixes))
foreach ($response->body->CommonPrefixes as $c)
$results[(string)$c->Prefix] = array('prefix' => (string)$c->Prefix);
if (isset($response->body, $response->body->NextMarker))
$nextMarker = (string)$response->body->NextMarker;
} while ($response !== false && (string)$response->body->IsTruncated == 'true');
return $results;
}
/**
* Put a bucket
*
* @param string $bucket Bucket name
* @param constant $acl ACL flag
* @param string $location Set as "EU" to create buckets hosted in Europe
* @return boolean
*/
public static function putBucket($bucket, $acl = self::ACL_PRIVATE, $location = false) {
$rest = new pb_backupbuddy_S3Request('PUT', $bucket, '');
$rest->setAmzHeader('x-amz-acl', $acl);
if ($location !== false) {
$dom = new DOMDocument;
$createBucketConfiguration = $dom->createElement('CreateBucketConfiguration');
$locationConstraint = $dom->createElement('LocationConstraint', strtoupper($location));
$createBucketConfiguration->appendChild($locationConstraint);
$dom->appendChild($createBucketConfiguration);
$rest->data = $dom->saveXML();
$rest->size = strlen($rest->data);
$rest->setHeader('Content-Type', 'application/xml');
}
$rest = $rest->getResponse();
if ($rest->error === false && $rest->code !== 200)
$rest->error = array('code' => $rest->code, 'message' => 'Unexpected HTTP status');
if ($rest->error !== false) {
/*
trigger_error(sprintf("pb_backupbuddy_S3::putBucket({$bucket}, {$acl}, {$location}): [%s] %s",
$rest->error['code'], $rest->error['message']), E_USER_WARNING);
*/
echo 'Error: ' . $rest->error['message'];
return false;
}
return true;
}
/**
* Delete an empty bucket
*
* @param string $bucket Bucket name
* @return boolean
*/
public static function deleteBucket($bucket) {
$rest = new pb_backupbuddy_S3Request('DELETE', $bucket);
$rest = $rest->getResponse();
if ($rest->error === false && $rest->code !== 204)
$rest->error = array('code' => $rest->code, 'message' => 'Unexpected HTTP status');
if ($rest->error !== false) {
trigger_error(sprintf("pb_backupbuddy_S3::deleteBucket({$bucket}): [%s] %s",
$rest->error['code'], $rest->error['message']), E_USER_WARNING);
return false;
}
return true;
}
/**
* Create input info array for putObject()
*
* @param string $file Input file
* @param mixed $md5sum Use MD5 hash (supply a string if you want to use your own)
* @return array | false
*/
public static function inputFile($file, $md5sum = true) {
if (!file_exists($file) || !is_file($file) || !is_readable($file)) {
trigger_error('pb_backupbuddy_S3::inputFile(): Unable to open input file: '.$file, E_USER_WARNING);
return false;
}
return array('file' => $file, 'size' => filesize($file),
'md5sum' => $md5sum !== false ? (is_string($md5sum) ? $md5sum :
base64_encode(md5_file($file, true))) : '');
}
/**
* Create input array info for putObject() with a resource
*
* @param string $resource Input resource to read from
* @param integer $bufferSize Input byte size
* @param string $md5sum MD5 hash to send (optional)
* @return array | false
*/
public static function inputResource(&$resource, $bufferSize, $md5sum = '') {
if (!is_resource($resource) || $bufferSize < 0) {
trigger_error('pb_backupbuddy_S3::inputResource(): Invalid resource or buffer size', E_USER_WARNING);
return false;
}
$input = array('size' => $bufferSize, 'md5sum' => $md5sum);
$input['fp'] =& $resource;
return $input;
}
/**
* Put an object
*
* @param mixed $input Input data
* @param string $bucket Bucket name
* @param string $uri Object URI
* @param constant $acl ACL constant
* @param array $metaHeaders Array of x-amz-meta-* headers
* @param array $requestHeaders Array of request headers or content type as a string
* @return boolean
*/
// NOTE: Modified to also send a string on false for additional info. Nov 11, 2011 DLB.
public static function putObject($input, $bucket, $uri, $acl = self::ACL_PRIVATE, $metaHeaders = array(), $requestHeaders = array()) {
if ($input === false) return 'Error #3443434: Bad input.';
$rest = new pb_backupbuddy_S3Request('PUT', $bucket, $uri);
if (is_string($input)) $input = array(
'data' => $input, 'size' => strlen($input),
'md5sum' => base64_encode(md5($input, true))
);
// Data
if (isset($input['fp']))
$rest->fp =& $input['fp'];
elseif (isset($input['file']))
$rest->fp = @fopen($input['file'], 'rb');
elseif (isset($input['data']))
$rest->data = $input['data'];
// Content-Length (required)
if (isset($input['size']) && $input['size'] >= 0)
$rest->size = $input['size'];
else {
if (isset($input['file']))
$rest->size = filesize($input['file']);
elseif (isset($input['data']))
$rest->size = strlen($input['data']);
}
// Custom request headers (Content-Type, Content-Disposition, Content-Encoding)
if (is_array($requestHeaders))
foreach ($requestHeaders as $h => $v) $rest->setHeader($h, $v);
elseif (is_string($requestHeaders)) // Support for legacy contentType parameter
$input['type'] = $requestHeaders;
// Content-Type
if (!isset($input['type'])) {
if (isset($requestHeaders['Content-Type']))
$input['type'] =& $requestHeaders['Content-Type'];
elseif (isset($input['file']))
$input['type'] = self::__getMimeType($input['file']);
else
$input['type'] = 'application/octet-stream';
}
// We need to post with Content-Length and Content-Type, MD5 is optional
if ($rest->size >= 0 && ($rest->fp !== false || $rest->data !== false)) {
$rest->setHeader('Content-Type', $input['type']);
if (isset($input['md5sum'])) $rest->setHeader('Content-MD5', $input['md5sum']);
$rest->setAmzHeader('x-amz-acl', $acl);
foreach ($metaHeaders as $h => $v) $rest->setAmzHeader('x-amz-meta-'.$h, $v);
$rest->getResponse();
} else {
$rest->response->error = array('code' => 0, 'message' => 'Missing input parameters');
}
if ($rest->response->error === false && $rest->response->code !== 200)
$rest->response->error = array('code' => $rest->response->code, 'message' => 'Unexpected HTTP status');
if ($rest->response->error !== false) {
//trigger_error(sprintf("pb_backupbuddy_S3::putObject(): [%s] %s", $rest->response->error['code'], $rest->response->error['message']), E_USER_WARNING);
return 'Error #45893489343: rest response code `' . $rest->response->error['code'] . '`; message: `' . $rest->response->error['message'] . '`';
//return false;
}
return true;
}
/**
* Put an object from a file (legacy function)
*
* @param string $file Input file path
* @param string $bucket Bucket name
* @param string $uri Object URI
* @param constant $acl ACL constant
* @param array $metaHeaders Array of x-amz-meta-* headers
* @param string $contentType Content type
* @return boolean
*/
public static function putObjectFile($file, $bucket, $uri, $acl = self::ACL_PRIVATE, $metaHeaders = array(), $contentType = null) {
return self::putObject(self::inputFile($file), $bucket, $uri, $acl, $metaHeaders, $contentType);
}
/**
* Put an object from a string (legacy function)
*
* @param string $string Input data
* @param string $bucket Bucket name
* @param string $uri Object URI
* @param constant $acl ACL constant
* @param array $metaHeaders Array of x-amz-meta-* headers
* @param string $contentType Content type
* @return boolean
*/
public static function putObjectString($string, $bucket, $uri, $acl = self::ACL_PRIVATE, $metaHeaders = array(), $contentType = 'text/plain') {
return self::putObject($string, $bucket, $uri, $acl, $metaHeaders, $contentType);
}
/**
* Get an object
*
* @param string $bucket Bucket name
* @param string $uri Object URI
* @param mixed $saveTo Filename or resource to write to
* @return mixed
*/
public static function getObject($bucket, $uri, $saveTo = false) {
$rest = new pb_backupbuddy_S3Request('GET', $bucket, $uri);
if ($saveTo !== false) {
if (is_resource($saveTo))
$rest->fp =& $saveTo;
else
if (($rest->fp = @fopen($saveTo, 'wb')) !== false)
$rest->file = realpath($saveTo);
else
$rest->response->error = array('code' => 0, 'message' => 'Unable to open save file for writing: '.$saveTo);
}
if ($rest->response->error === false) $rest->getResponse();
if ($rest->response->error === false && $rest->response->code !== 200)
$rest->response->error = array('code' => $rest->response->code, 'message' => 'Unexpected HTTP status');
if ($rest->response->error !== false) {
trigger_error(sprintf("pb_backupbuddy_S3::getObject({$bucket}, {$uri}): [%s] %s",
$rest->response->error['code'], $rest->response->error['message']), E_USER_WARNING);
return false;
}
return $rest->response;
}
/**
* Get object information
*
* @param string $bucket Bucket name
* @param string $uri Object URI
* @param boolean $returnInfo Return response information
* @return mixed | false
*/
public static function getObjectInfo($bucket, $uri, $returnInfo = true) {
$rest = new pb_backupbuddy_S3Request('HEAD', $bucket, $uri);
$rest = $rest->getResponse();
if ($rest->error === false && ($rest->code !== 200 && $rest->code !== 404))
$rest->error = array('code' => $rest->code, 'message' => 'Unexpected HTTP status');
if ($rest->error !== false) {
trigger_error(sprintf("pb_backupbuddy_S3::getObjectInfo({$bucket}, {$uri}): [%s] %s",
$rest->error['code'], $rest->error['message']), E_USER_WARNING);
return false;
}
return $rest->code == 200 ? $returnInfo ? $rest->headers : true : false;
}
/**
* Copy an object
*
* @param string $bucket Source bucket name
* @param string $uri Source object URI
* @param string $bucket Destination bucket name
* @param string $uri Destination object URI
* @param constant $acl ACL constant
* @param array $metaHeaders Optional array of x-amz-meta-* headers
* @param array $requestHeaders Optional array of request headers (content type, disposition, etc.)
* @return mixed | false
*/
public static function copyObject($srcBucket, $srcUri, $bucket, $uri, $acl = self::ACL_PRIVATE, $metaHeaders = array(), $requestHeaders = array()) {
$rest = new pb_backupbuddy_S3Request('PUT', $bucket, $uri);
$rest->setHeader('Content-Length', 0);
foreach ($requestHeaders as $h => $v) $rest->setHeader($h, $v);
foreach ($metaHeaders as $h => $v) $rest->setAmzHeader('x-amz-meta-'.$h, $v);
$rest->setAmzHeader('x-amz-acl', $acl);
$rest->setAmzHeader('x-amz-copy-source', sprintf('/%s/%s', $srcBucket, $srcUri));
if (sizeof($requestHeaders) > 0 || sizeof($metaHeaders) > 0)
$rest->setAmzHeader('x-amz-metadata-directive', 'REPLACE');
$rest = $rest->getResponse();
if ($rest->error === false && $rest->code !== 200)
$rest->error = array('code' => $rest->code, 'message' => 'Unexpected HTTP status');
if ($rest->error !== false) {
trigger_error(sprintf("pb_backupbuddy_S3::copyObject({$srcBucket}, {$srcUri}, {$bucket}, {$uri}): [%s] %s",
$rest->error['code'], $rest->error['message']), E_USER_WARNING);
return false;
}
return isset($rest->body->LastModified, $rest->body->ETag) ? array(
'time' => strtotime((string)$rest->body->LastModified),
'hash' => substr((string)$rest->body->ETag, 1, -1)
) : false;
}
/**
* Set logging for a bucket
*
* @param string $bucket Bucket name
* @param string $targetBucket Target bucket (where logs are stored)
* @param string $targetPrefix Log prefix (e,g; domain.com-)
* @return boolean
*/
public static function setBucketLogging($bucket, $targetBucket, $targetPrefix = null) {
// The S3 log delivery group has to be added to the target bucket's ACP
if ($targetBucket !== null && ($acp = self::getAccessControlPolicy($targetBucket, '')) !== false) {
// Only add permissions to the target bucket when they do not exist
$aclWriteSet = false;
$aclReadSet = false;
foreach ($acp['acl'] as $acl)
if ($acl['type'] == 'Group' && $acl['uri'] == 'http://acs.amazonaws.com/groups/s3/LogDelivery') {
if ($acl['permission'] == 'WRITE') $aclWriteSet = true;
elseif ($acl['permission'] == 'READ_ACP') $aclReadSet = true;
}
if (!$aclWriteSet) $acp['acl'][] = array(
'type' => 'Group', 'uri' => 'http://acs.amazonaws.com/groups/s3/LogDelivery', 'permission' => 'WRITE'
);
if (!$aclReadSet) $acp['acl'][] = array(
'type' => 'Group', 'uri' => 'http://acs.amazonaws.com/groups/s3/LogDelivery', 'permission' => 'READ_ACP'
);
if (!$aclReadSet || !$aclWriteSet) self::setAccessControlPolicy($targetBucket, '', $acp);
}
$dom = new DOMDocument;
$bucketLoggingStatus = $dom->createElement('BucketLoggingStatus');
$bucketLoggingStatus->setAttribute('xmlns', 'http://s3.amazonaws.com/doc/2006-03-01/');
if ($targetBucket !== null) {
if ($targetPrefix == null) $targetPrefix = $bucket . '-';
$loggingEnabled = $dom->createElement('LoggingEnabled');
$loggingEnabled->appendChild($dom->createElement('TargetBucket', $targetBucket));
$loggingEnabled->appendChild($dom->createElement('TargetPrefix', $targetPrefix));
// TODO: Add TargetGrants?
$bucketLoggingStatus->appendChild($loggingEnabled);
}
$dom->appendChild($bucketLoggingStatus);
$rest = new pb_backupbuddy_S3Request('PUT', $bucket, '');
$rest->setParameter('logging', null);
$rest->data = $dom->saveXML();
$rest->size = strlen($rest->data);
$rest->setHeader('Content-Type', 'application/xml');
$rest = $rest->getResponse();
if ($rest->error === false && $rest->code !== 200)
$rest->error = array('code' => $rest->code, 'message' => 'Unexpected HTTP status');
if ($rest->error !== false) {
trigger_error(sprintf("pb_backupbuddy_S3::setBucketLogging({$bucket}, {$uri}): [%s] %s",
$rest->error['code'], $rest->error['message']), E_USER_WARNING);
return false;
}
return true;
}
/**
* Get logging status for a bucket
*
* This will return false if logging is not enabled.
* Note: To enable logging, you also need to grant write access to the log group
*
* @param string $bucket Bucket name
* @return array | false
*/
public static function getBucketLogging($bucket) {
$rest = new pb_backupbuddy_S3Request('GET', $bucket, '');
$rest->setParameter('logging', null);
$rest = $rest->getResponse();
if ($rest->error === false && $rest->code !== 200)
$rest->error = array('code' => $rest->code, 'message' => 'Unexpected HTTP status');
if ($rest->error !== false) {
trigger_error(sprintf("pb_backupbuddy_S3::getBucketLogging({$bucket}): [%s] %s",
$rest->error['code'], $rest->error['message']), E_USER_WARNING);
return false;
}
if (!isset($rest->body->LoggingEnabled)) return false; // No logging
return array(
'targetBucket' => (string)$rest->body->LoggingEnabled->TargetBucket,
'targetPrefix' => (string)$rest->body->LoggingEnabled->TargetPrefix,
);
}
/**
* Disable bucket logging
*
* @param string $bucket Bucket name
* @return boolean
*/
public static function disableBucketLogging($bucket) {
return self::setBucketLogging($bucket, null);
}
/**
* Get a bucket's location
*
* @param string $bucket Bucket name
* @return string | false
*/
public static function getBucketLocation($bucket) {
$rest = new pb_backupbuddy_S3Request('GET', $bucket, '');
$rest->setParameter('location', null);
$rest = $rest->getResponse();
if ($rest->error === false && $rest->code !== 200)
$rest->error = array('code' => $rest->code, 'message' => 'Unexpected HTTP status');
if ($rest->error !== false) {
//trigger_error(sprintf("pb_backupbuddy_S3::getBucketLocation({$bucket}): [%s] %s",
//$rest->error['code'], $rest->error['message']), E_USER_WARNING);
return false;
}
return (isset($rest->body[0]) && (string)$rest->body[0] !== '') ? (string)$rest->body[0] : 'US';
}
/**
* Set object or bucket Access Control Policy
*
* @param string $bucket Bucket name
* @param string $uri Object URI
* @param array $acp Access Control Policy Data (same as the data returned from getAccessControlPolicy)
* @return boolean
*/
public static function setAccessControlPolicy($bucket, $uri = '', $acp = array()) {
$dom = new DOMDocument;
$dom->formatOutput = true;
$accessControlPolicy = $dom->createElement('AccessControlPolicy');
$accessControlList = $dom->createElement('AccessControlList');
// It seems the owner has to be passed along too
$owner = $dom->createElement('Owner');
$owner->appendChild($dom->createElement('ID', $acp['owner']['id']));
$owner->appendChild($dom->createElement('DisplayName', $acp['owner']['name']));
$accessControlPolicy->appendChild($owner);
foreach ($acp['acl'] as $g) {
$grant = $dom->createElement('Grant');
$grantee = $dom->createElement('Grantee');
$grantee->setAttribute('xmlns:xsi', 'http://www.w3.org/2001/XMLSchema-instance');
if (isset($g['id'])) { // CanonicalUser (DisplayName is omitted)
$grantee->setAttribute('xsi:type', 'CanonicalUser');
$grantee->appendChild($dom->createElement('ID', $g['id']));
} elseif (isset($g['email'])) { // AmazonCustomerByEmail
$grantee->setAttribute('xsi:type', 'AmazonCustomerByEmail');
$grantee->appendChild($dom->createElement('EmailAddress', $g['email']));
} elseif ($g['type'] == 'Group') { // Group
$grantee->setAttribute('xsi:type', 'Group');
$grantee->appendChild($dom->createElement('URI', $g['uri']));
}
$grant->appendChild($grantee);
$grant->appendChild($dom->createElement('Permission', $g['permission']));
$accessControlList->appendChild($grant);
}
$accessControlPolicy->appendChild($accessControlList);
$dom->appendChild($accessControlPolicy);
$rest = new pb_backupbuddy_S3Request('PUT', $bucket, $uri);
$rest->setParameter('acl', null);
$rest->data = $dom->saveXML();
$rest->size = strlen($rest->data);
$rest->setHeader('Content-Type', 'application/xml');
$rest = $rest->getResponse();
if ($rest->error === false && $rest->code !== 200)
$rest->error = array('code' => $rest->code, 'message' => 'Unexpected HTTP status');
if ($rest->error !== false) {
trigger_error(sprintf("pb_backupbuddy_S3::setAccessControlPolicy({$bucket}, {$uri}): [%s] %s",
$rest->error['code'], $rest->error['message']), E_USER_WARNING);
return false;
}
return true;
}
/**
* Get object or bucket Access Control Policy
*
* @param string $bucket Bucket name
* @param string $uri Object URI
* @return mixed | false
*/
public static function getAccessControlPolicy($bucket, $uri = '') {
$rest = new pb_backupbuddy_S3Request('GET', $bucket, $uri);
$rest->setParameter('acl', null);
$rest = $rest->getResponse();
if ($rest->error === false && $rest->code !== 200)
$rest->error = array('code' => $rest->code, 'message' => 'Unexpected HTTP status');
if ($rest->error !== false) {
trigger_error(sprintf("pb_backupbuddy_S3::getAccessControlPolicy({$bucket}, {$uri}): [%s] %s",
$rest->error['code'], $rest->error['message']), E_USER_WARNING);
return false;
}
$acp = array();
if (isset($rest->body->Owner, $rest->body->Owner->ID, $rest->body->Owner->DisplayName)) {
$acp['owner'] = array(
'id' => (string)$rest->body->Owner->ID, 'name' => (string)$rest->body->Owner->DisplayName
);
}
if (isset($rest->body->AccessControlList)) {
$acp['acl'] = array();
foreach ($rest->body->AccessControlList->Grant as $grant) {
foreach ($grant->Grantee as $grantee) {
if (isset($grantee->ID, $grantee->DisplayName)) // CanonicalUser
$acp['acl'][] = array(
'type' => 'CanonicalUser',
'id' => (string)$grantee->ID,
'name' => (string)$grantee->DisplayName,
'permission' => (string)$grant->Permission
);
elseif (isset($grantee->EmailAddress)) // AmazonCustomerByEmail
$acp['acl'][] = array(
'type' => 'AmazonCustomerByEmail',
'email' => (string)$grantee->EmailAddress,
'permission' => (string)$grant->Permission
);
elseif (isset($grantee->URI)) // Group
$acp['acl'][] = array(
'type' => 'Group',
'uri' => (string)$grantee->URI,
'permission' => (string)$grant->Permission
);
else continue;
}
}
}
return $acp;
}
/**
* Delete an object
*
* @param string $bucket Bucket name
* @param string $uri Object URI
* @return boolean
*/
public static function deleteObject($bucket, $uri) {
$rest = new pb_backupbuddy_S3Request('DELETE', $bucket, $uri);
$rest = $rest->getResponse();
if ($rest->error === false && $rest->code !== 204)
$rest->error = array('code' => $rest->code, 'message' => 'Unexpected HTTP status');
if ($rest->error !== false) {
//trigger_error(sprintf("pb_backupbuddy_S3::deleteObject(): [%s] %s", $rest->error['code'], $rest->error['message']), E_USER_WARNING);
return false;
}
return true;
}
/**
* Get a query string authenticated URL
*
* @param string $bucket Bucket name
* @param string $uri Object URI
* @param integer $lifetime Lifetime in seconds
* @param boolean $hostBucket Use the bucket name as the hostname
* @param boolean $https Use HTTPS ($hostBucket should be false for SSL verification)
* @return string
*/
public static function getAuthenticatedURL($bucket, $uri, $lifetime, $hostBucket = false, $https = false) {
$expires = time() + $lifetime;
$uri = str_replace('%2F', '/', rawurlencode($uri)); // URI should be encoded (thanks Sean O'Dea)
return sprintf(($https ? 'https' : 'http').'://%s/%s?AWSAccessKeyId=%s&Expires=%u&Signature=%s',
$hostBucket ? $bucket : $bucket.'.s3.amazonaws.com', $uri, self::$__accessKey, $expires,
urlencode(self::__getHash("GET\n\n\n{$expires}\n/{$bucket}/{$uri}")));
}
/**
* Get upload POST parameters for form uploads
*
* @param string $bucket Bucket name
* @param string $uriPrefix Object URI prefix
* @param constant $acl ACL constant
* @param integer $lifetime Lifetime in seconds
* @param integer $maxFileSize Maximum filesize in bytes (default 5MB)
* @param string $successRedirect Redirect URL or 200 / 201 status code
* @param array $amzHeaders Array of x-amz-meta-* headers
* @param array $headers Array of request headers or content type as a string
* @param boolean $flashVars Includes additional "Filename" variable posted by Flash
* @return object
*/
public static function getHttpUploadPostParams($bucket, $uriPrefix = '', $acl = self::ACL_PRIVATE, $lifetime = 3600, $maxFileSize = 5242880, $successRedirect = "201", $amzHeaders = array(), $headers = array(), $flashVars = false) {
// Create policy object
$policy = new stdClass;
$policy->expiration = gmdate('Y-m-d\TH:i:s\Z', (time() + $lifetime));
$policy->conditions = array();
$obj = new stdClass; $obj->bucket = $bucket; array_push($policy->conditions, $obj);
$obj = new stdClass; $obj->acl = $acl; array_push($policy->conditions, $obj);
$obj = new stdClass; // 200 for non-redirect uploads
if (is_numeric($successRedirect) && in_array((int)$successRedirect, array(200, 201)))
$obj->success_action_status = (string)$successRedirect;
else // URL
$obj->success_action_redirect = $successRedirect;
array_push($policy->conditions, $obj);
array_push($policy->conditions, array('starts-with', '$key', $uriPrefix));
if ($flashVars) array_push($policy->conditions, array('starts-with', '$Filename', ''));
foreach (array_keys($headers) as $headerKey)
array_push($policy->conditions, array('starts-with', '$'.$headerKey, ''));
foreach ($amzHeaders as $headerKey => $headerVal) {
$obj = new stdClass; $obj->{$headerKey} = (string)$headerVal; array_push($policy->conditions, $obj);
}
array_push($policy->conditions, array('content-length-range', 0, $maxFileSize));
$policy = base64_encode(str_replace('\/', '/', json_encode($policy)));
// Create parameters
$params = new stdClass;
$params->AWSAccessKeyId = self::$__accessKey;
$params->key = $uriPrefix.'${filename}';
$params->acl = $acl;
$params->policy = $policy; unset($policy);
$params->signature = self::__getHash($params->policy);
if (is_numeric($successRedirect) && in_array((int)$successRedirect, array(200, 201)))
$params->success_action_status = (string)$successRedirect;
else
$params->success_action_redirect = $successRedirect;
foreach ($headers as $headerKey => $headerVal) $params->{$headerKey} = (string)$headerVal;
foreach ($amzHeaders as $headerKey => $headerVal) $params->{$headerKey} = (string)$headerVal;
return $params;
}
/**
* Create a CloudFront distribution
*
* @param string $bucket Bucket name
* @param boolean $enabled Enabled (true/false)
* @param array $cnames Array containing CNAME aliases
* @param string $comment Use the bucket name as the hostname
* @return array | false
*/
public static function createDistribution($bucket, $enabled = true, $cnames = array(), $comment = '') {
self::$useSSL = true; // CloudFront requires SSL
$rest = new pb_backupbuddy_S3Request('POST', '', '2008-06-30/distribution', 'cloudfront.amazonaws.com');
$rest->data = self::__getCloudFrontDistributionConfigXML($bucket.'.s3.amazonaws.com', $enabled, $comment, (string)microtime(true), $cnames);
$rest->size = strlen($rest->data);
$rest->setHeader('Content-Type', 'application/xml');
$rest = self::__getCloudFrontResponse($rest);
if ($rest->error === false && $rest->code !== 201)
$rest->error = array('code' => $rest->code, 'message' => 'Unexpected HTTP status');
if ($rest->error !== false) {
trigger_error(sprintf("pb_backupbuddy_S3::createDistribution({$bucket}, ".(int)$enabled.", '$comment'): [%s] %s",
$rest->error['code'], $rest->error['message']), E_USER_WARNING);
return false;
} elseif ($rest->body instanceof SimpleXMLElement)
return self::__parseCloudFrontDistributionConfig($rest->body);
return false;
}
/**
* Get CloudFront distribution info
*
* @param string $distributionId Distribution ID from listDistributions()
* @return array | false
*/
public static function getDistribution($distributionId) {
self::$useSSL = true; // CloudFront requires SSL
$rest = new pb_backupbuddy_S3Request('GET', '', '2008-06-30/distribution/'.$distributionId, 'cloudfront.amazonaws.com');
$rest = self::__getCloudFrontResponse($rest);
if ($rest->error === false && $rest->code !== 200)
$rest->error = array('code' => $rest->code, 'message' => 'Unexpected HTTP status');
if ($rest->error !== false) {
trigger_error(sprintf("pb_backupbuddy_S3::getDistribution($distributionId): [%s] %s",
$rest->error['code'], $rest->error['message']), E_USER_WARNING);
return false;
} elseif ($rest->body instanceof SimpleXMLElement) {
$dist = self::__parseCloudFrontDistributionConfig($rest->body);
$dist['hash'] = $rest->headers['hash'];
return $dist;
}
return false;
}
/**
* Update a CloudFront distribution
*
* @param array $dist Distribution array info identical to output of getDistribution()
* @return array | false
*/
public static function updateDistribution($dist) {
self::$useSSL = true; // CloudFront requires SSL
$rest = new pb_backupbuddy_S3Request('PUT', '', '2008-06-30/distribution/'.$dist['id'].'/config', 'cloudfront.amazonaws.com');
$rest->data = self::__getCloudFrontDistributionConfigXML($dist['origin'], $dist['enabled'], $dist['comment'], $dist['callerReference'], $dist['cnames']);
$rest->size = strlen($rest->data);
$rest->setHeader('If-Match', $dist['hash']);
$rest = self::__getCloudFrontResponse($rest);
if ($rest->error === false && $rest->code !== 200)
$rest->error = array('code' => $rest->code, 'message' => 'Unexpected HTTP status');
if ($rest->error !== false) {
trigger_error(sprintf("pb_backupbuddy_S3::updateDistribution({$dist['id']}, ".(int)$enabled.", '$comment'): [%s] %s",
$rest->error['code'], $rest->error['message']), E_USER_WARNING);
return false;
} else {
$dist = self::__parseCloudFrontDistributionConfig($rest->body);
$dist['hash'] = $rest->headers['hash'];
return $dist;
}
return false;
}
/**
* Delete a CloudFront distribution
*
* @param array $dist Distribution array info identical to output of getDistribution()
* @return boolean
*/
public static function deleteDistribution($dist) {
self::$useSSL = true; // CloudFront requires SSL
$rest = new pb_backupbuddy_S3Request('DELETE', '', '2008-06-30/distribution/'.$dist['id'], 'cloudfront.amazonaws.com');
$rest->setHeader('If-Match', $dist['hash']);
$rest = self::__getCloudFrontResponse($rest);
if ($rest->error === false && $rest->code !== 204)
$rest->error = array('code' => $rest->code, 'message' => 'Unexpected HTTP status');
if ($rest->error !== false) {
trigger_error(sprintf("pb_backupbuddy_S3::deleteDistribution({$dist['id']}): [%s] %s",
$rest->error['code'], $rest->error['message']), E_USER_WARNING);
return false;
}
return true;
}
/**
* Get a list of CloudFront distributions
*
* @return array
*/
public static function listDistributions() {
self::$useSSL = true; // CloudFront requires SSL
$rest = new pb_backupbuddy_S3Request('GET', '', '2008-06-30/distribution', 'cloudfront.amazonaws.com');
$rest = self::__getCloudFrontResponse($rest);
if ($rest->error === false && $rest->code !== 200)
$rest->error = array('code' => $rest->code, 'message' => 'Unexpected HTTP status');
if ($rest->error !== false) {
trigger_error(sprintf("pb_backupbuddy_S3::listDistributions(): [%s] %s",
$rest->error['code'], $rest->error['message']), E_USER_WARNING);
return false;
} elseif ($rest->body instanceof SimpleXMLElement && isset($rest->body->DistributionSummary)) {
$list = array();
if (isset($rest->body->Marker, $rest->body->MaxItems, $rest->body->IsTruncated)) {
//$info['marker'] = (string)$rest->body->Marker;
//$info['maxItems'] = (int)$rest->body->MaxItems;
//$info['isTruncated'] = (string)$rest->body->IsTruncated == 'true' ? true : false;
}
foreach ($rest->body->DistributionSummary as $summary) {
$list[(string)$summary->Id] = self::__parseCloudFrontDistributionConfig($summary);
}
return $list;
}
return array();
}
/**
* Get a DistributionConfig DOMDocument
*
* @internal Used to create XML in createDistribution() and updateDistribution()
* @param string $bucket Origin bucket
* @param boolean $enabled Enabled (true/false)
* @param string $comment Comment to append
* @param string $callerReference Caller reference
* @param array $cnames Array of CNAME aliases
* @return string
*/
private static function __getCloudFrontDistributionConfigXML($bucket, $enabled, $comment, $callerReference = '0', $cnames = array()) {
$dom = new DOMDocument('1.0', 'UTF-8');
$dom->formatOutput = true;
$distributionConfig = $dom->createElement('DistributionConfig');
$distributionConfig->setAttribute('xmlns', 'http://cloudfront.amazonaws.com/doc/2008-06-30/');
$distributionConfig->appendChild($dom->createElement('Origin', $bucket));
$distributionConfig->appendChild($dom->createElement('CallerReference', $callerReference));
foreach ($cnames as $cname)
$distributionConfig->appendChild($dom->createElement('CNAME', $cname));
if ($comment !== '') $distributionConfig->appendChild($dom->createElement('Comment', $comment));
$distributionConfig->appendChild($dom->createElement('Enabled', $enabled ? 'true' : 'false'));
$dom->appendChild($distributionConfig);
return $dom->saveXML();
}
/**
* Parse a CloudFront distribution config
*
* @internal Used to parse the CloudFront DistributionConfig node to an array
* @param object &$node DOMNode
* @return array
*/
private static function __parseCloudFrontDistributionConfig(&$node) {
$dist = array();
if (isset($node->Id, $node->Status, $node->LastModifiedTime, $node->DomainName)) {
$dist['id'] = (string)$node->Id;
$dist['status'] = (string)$node->Status;
$dist['time'] = strtotime((string)$node->LastModifiedTime);
$dist['domain'] = (string)$node->DomainName;
}
if (isset($node->CallerReference))
$dist['callerReference'] = (string)$node->CallerReference;
if (isset($node->Comment))
$dist['comment'] = (string)$node->Comment;
if (isset($node->Enabled, $node->Origin)) {
$dist['origin'] = (string)$node->Origin;
$dist['enabled'] = (string)$node->Enabled == 'true' ? true : false;
} elseif (isset($node->DistributionConfig)) {
$dist = array_merge($dist, self::__parseCloudFrontDistributionConfig($node->DistributionConfig));
}
if (isset($node->CNAME)) {
$dist['cnames'] = array();
foreach ($node->CNAME as $cname) $dist['cnames'][(string)$cname] = (string)$cname;
}
return $dist;
}
/**
* Grab CloudFront response
*
* @internal Used to parse the CloudFront pb_backupbuddy_S3::getResponse() output
* @param object &$rest S3Request instance
* @return object
*/
private static function __getCloudFrontResponse(&$rest) {
$rest->getResponse();
if ($rest->response->error === false && isset($rest->response->body) &&
is_string($rest->response->body) && substr($rest->response->body, 0, 5) == '<?xml') {
$rest->response->body = simplexml_load_string($rest->response->body);
// Grab CloudFront errors
if (isset($rest->response->body->Error, $rest->response->body->Error->Code,
$rest->response->body->Error->Message)) {
$rest->response->error = array(
'code' => (string)$rest->response->body->Error->Code,
'message' => (string)$rest->response->body->Error->Message
);
unset($rest->response->body);
}
}
return $rest->response;
}
/**
* Get MIME type for file
*
* @internal Used to get mime types
* @param string &$file File path
* @return string
*/
public static function __getMimeType(&$file) {
$type = false;
// Fileinfo documentation says fileinfo_open() will use the
// MAGIC env var for the magic file
if (extension_loaded('fileinfo') && isset($_ENV['MAGIC']) &&
($finfo = finfo_open(FILEINFO_MIME, $_ENV['MAGIC'])) !== false) {
if (($type = finfo_file($finfo, $file)) !== false) {
// Remove the charset and grab the last content-type
$type = explode(' ', str_replace('; charset=', ';charset=', $type));
$type = array_pop($type);
$type = explode(';', $type);
$type = trim(array_shift($type));
}
finfo_close($finfo);
// If anyone is still using mime_content_type()
} elseif (function_exists('mime_content_type'))
$type = trim(mime_content_type($file));
if ($type !== false && strlen($type) > 0) return $type;
// Otherwise do it the old fashioned way
static $exts = array(
'jpg' => 'image/jpeg', 'gif' => 'image/gif', 'png' => 'image/png',
'tif' => 'image/tiff', 'tiff' => 'image/tiff', 'ico' => 'image/x-icon',
'swf' => 'application/x-shockwave-flash', 'pdf' => 'application/pdf',
'zip' => 'application/zip', 'gz' => 'application/x-gzip',
'tar' => 'application/x-tar', 'bz' => 'application/x-bzip',
'bz2' => 'application/x-bzip2', 'txt' => 'text/plain',
'asc' => 'text/plain', 'htm' => 'text/html', 'html' => 'text/html',
'css' => 'text/css', 'js' => 'text/javascript',
'xml' => 'text/xml', 'xsl' => 'application/xsl+xml',
'ogg' => 'application/ogg', 'mp3' => 'audio/mpeg', 'wav' => 'audio/x-wav',
'avi' => 'video/x-msvideo', 'mpg' => 'video/mpeg', 'mpeg' => 'video/mpeg',
'mov' => 'video/quicktime', 'flv' => 'video/x-flv', 'php' => 'text/x-php'
);
$ext = strtolower(pathInfo($file, PATHINFO_EXTENSION));
return isset($exts[$ext]) ? $exts[$ext] : 'application/octet-stream';
}
/**
* Generate the auth string: "AWS AccessKey:Signature"
*
* @internal Used by pb_backupbuddy_S3::getResponse()
* @param string $string String to sign
* @return string
*/
public static function __getSignature($string) {
return 'AWS '.self::$__accessKey.':'.self::__getHash($string);
}
/**
* Creates a HMAC-SHA1 hash
*
* This uses the hash extension if loaded
*
* @internal Used by __getSignature()
* @param string $string String to sign
* @return string
*/
private static function __getHash($string) {
return base64_encode(extension_loaded('hash') ?
hash_hmac('sha1', $string, self::$__secretKey, true) : pack('H*', sha1(
(str_pad(self::$__secretKey, 64, chr(0x00)) ^ (str_repeat(chr(0x5c), 64))) .
pack('H*', sha1((str_pad(self::$__secretKey, 64, chr(0x00)) ^
(str_repeat(chr(0x36), 64))) . $string)))));
}
}
final class pb_backupbuddy_S3Request {
private $verb, $bucket, $uri, $resource = '', $parameters = array(),
$amzHeaders = array(), $headers = array(
'Host' => '', 'Date' => '', 'Content-MD5' => '', 'Content-Type' => ''
);
public $fp = false, $size = 0, $data = false, $response;
/**
* Constructor
*
* @param string $verb Verb
* @param string $bucket Bucket name
* @param string $uri Object URI
* @return mixed
*/
function __construct($verb, $bucket = '', $uri = '', $defaultHost = 's3.amazonaws.com') {
$this->verb = $verb;
$this->bucket = strtolower($bucket);
$this->uri = $uri !== '' ? '/'.str_replace('%2F', '/', rawurlencode($uri)) : '/';
if ($this->bucket !== '') {
$this->headers['Host'] = $this->bucket.'.'.$defaultHost;
$this->resource = '/'.$this->bucket.$this->uri;
} else {
$this->headers['Host'] = $defaultHost;
//$this->resource = strlen($this->uri) > 1 ? '/'.$this->bucket.$this->uri : $this->uri;
$this->resource = $this->uri;
}
$this->headers['Date'] = gmdate('D, d M Y H:i:s T');
$this->response = new STDClass;
$this->response->error = false;
}
/**
* Set request parameter
*
* @param string $key Key
* @param string $value Value
* @return void
*/
public function setParameter($key, $value) {
$this->parameters[$key] = $value;
}
/**
* Set request header
*
* @param string $key Key
* @param string $value Value
* @return void
*/
public function setHeader($key, $value) {
$this->headers[$key] = $value;
}
/**
* Set x-amz-meta-* header
*
* @param string $key Key
* @param string $value Value
* @return void
*/
public function setAmzHeader($key, $value) {
$this->amzHeaders[$key] = $value;
}
/**
* Get the S3 response
*
* @return object | false
*/
public function getResponse() {
$query = '';
if (sizeof($this->parameters) > 0) {
$query = substr($this->uri, -1) !== '?' ? '?' : '&';
foreach ($this->parameters as $var => $value)
if ($value == null || $value == '') $query .= $var.'&';
// Parameters should be encoded (thanks Sean O'Dea)
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('logging', $this->parameters))
$this->resource .= $query;
}
$url = ((pb_backupbuddy_S3::$useSSL && extension_loaded('openssl')) ?
'https://':'http://').$this->headers['Host'].$this->uri;
//var_dump($this->bucket, $this->uri, $this->resource, $url);
// Basic setup
$curl = curl_init();
curl_setopt($curl, CURLOPT_USERAGENT, 'S3/php');
if (pb_backupbuddy_S3::$useSSL) {
curl_setopt($curl, CURLOPT_SSL_VERIFYHOST, 1);
curl_setopt($curl, CURLOPT_SSL_VERIFYPEER, 0); // modified to 0 so we wont need ssl cert on our end
}
curl_setopt($curl, CURLOPT_URL, $url);
// 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);
$amz = "\n".implode("\n", $amz);
} else $amz = '';
// Authorization string (CloudFront stringToSign should only contain a date)
$headers[] = 'Authorization: ' . pb_backupbuddy_S3::__getSignature(
$this->headers['Host'] == 'cloudfront.amazonaws.com' ? $this->headers['Date'] :
$this->verb."\n".$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); // sometimes triggers errors. ie if host has safe mode PHP on.
// 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, $this->data);
if ($this->size >= 0)
curl_setopt($curl, CURLOPT_BUFFERSIZE, $this->size);
} else
curl_setopt($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' => $this->resource
);
@curl_close($curl);
// Parse body into XML
if ($this->response->error === false && isset($this->response->headers['type']) &&
$this->response->headers['type'] == 'application/xml' && isset($this->response->body)) {
$this->response->body = simplexml_load_string($this->response->body);
// Grab S3 errors
if (!in_array($this->response->code, array(200, 204)) &&
isset($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 $this->response;
}
/**
* CURL write callback
*
* @param resource &$curl CURL resource
* @param string &$data Data
* @return integer
*/
private function __responseWriteCallback(&$curl, &$data) {
if ($this->response->code == 200 && $this->fp !== false)
return fwrite($this->fp, $data);
else
$this->response->body .= $data;
return strlen($data);
}
/**
* CURL header callback
*
* @param resource &$curl CURL resource
* @param string &$data Data
* @return integer
*/
private function __responseHeaderCallback(&$curl, &$data) {
if (($strlen = strlen($data)) <= 2) return $strlen;
if (substr($data, 0, 4) == 'HTTP')
$this->response->code = (int)substr($data, 9, 3);
else {
list($header, $value) = explode(': ', trim($data), 2);
if ($header == 'Last-Modified')
$this->response->headers['time'] = strtotime($value);
elseif ($header == 'Content-Length')
$this->response->headers['size'] = (int)$value;
elseif ($header == 'Content-Type')
$this->response->headers['type'] = $value;
elseif ($header == 'ETag')
$this->response->headers['hash'] = $value{0} == '"' ? substr($value, 1, -1) : $value;
elseif (preg_match('/^x-amz-meta-.*$/', $header))
$this->response->headers[$header] = is_numeric($value) ? (int)$value : $value;
}
return $strlen;
}
}