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<?php
// @codingStandardsIgnoreStart
// This is a compatibility library, using Amazon's official PHP SDK (PHP 5.3.3+), but providing the methods of Donovan Schönknecht's S3.php library (which we used to always use) - but we've only cared about making code-paths in UpdraftPlus work, so be careful if re-deploying this in another project. And, we have a few bits of UpdraftPlus-specific code below, for logging.
/**
*
* Copyright (c) 2012-22, David Anderson (https://www.simbahosting.co.uk). All rights reserved.
* Portions copyright (c) 2011, 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.
*/
// @codingStandardsIgnoreEnd
// SDK requires PHP 5.5+
use Aws\Common\RulesEndpointProvider;
use Aws\Credentials\Credentials;
use Aws\S3\Exception\NoSuchBucketException;
use Aws\S3\S3MultiRegionClient;
global $updraftplus;
$updraftplus->potentially_remove_composer_autoloaders(array('GuzzleHttp\\', 'Aws\\'));
updraft_try_include_file('vendor/autoload.php', 'include');
$updraftplus->mitigate_guzzle_autoloader_conflicts();
/**
* Amazon S3 PHP class
* http://undesigned.org.za/2007/10/22/amazon-s3-php-cla
*
* @version Release: 0.5.0-dev
*/
class UpdraftPlus_S3_Compat {
// 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';
const STORAGE_CLASS_STANDARD = 'STANDARD';
// AWS S3 client
private $client;
private $config;
private $__access_key = null; // AWS Access key
private $__secret_key = null; // AWS Secret key
private $__session_token = null;
private $__ssl_key = null;
public $endpoint = 's3.amazonaws.com';
public $proxy = null;
private $region = 'us-east-1';
// Added to cope with a particular situation where the user had no pernmission to check the bucket location, which necessitated using DNS-based endpoints.
public $use_dns_bucket_name = false;
public $use_ssl = false;
public $use_ssl_validation = true;
public $useExceptions = false;
private $_serverSideEncryption = null;
// SSL CURL SSL options - only needed if you are experiencing problems with your OpenSSL configuration
public $ssl_key = null;
public $ssl_cert = null;
public $ssl_ca_cert = null;
public $iam = null;
// Added at request of a user using a non-default port.
public static $port = false;
/**
* Constructor - if you're not using the class statically
*
* @param string $access_key Access key
* @param string $secret_key Secret key
* @param boolean $use_ssl Enable SSL
* @param string|boolean $ssl_ca_cert Certificate authority (true = bundled Guzzle version; false = no verify, 'system' = system version; otherwise, path)
* @param Null|String $endpoint Endpoint (if omitted, it will be set by the SDK using the region)
* @param Null|String $session_token The session token returned by AWS for temporary credentials access
* @param Null|String $region Region. Currently unused, but harmonised with UpdraftPlus_S3 class
* @return void
*/
public function __construct($access_key = null, $secret_key = null, $use_ssl = true, $ssl_ca_cert = true, $endpoint = null, $session_token = null, $region = null) {// phpcs:ignore VariableAnalysis.CodeAnalysis.VariableAnalysis.UnusedVariable -- $region is unused
do_action('updraftplus_load_aws_sdk');
global $updraftplus;
$updraftplus->mitigate_guzzle_autoloader_conflicts();
if (null !== $access_key && null !== $secret_key)
$this->setAuth($access_key, $secret_key, $session_token);
$this->use_ssl = $use_ssl;
$this->ssl_ca_cert = $ssl_ca_cert;
if ($session_token) {
$credentials = new Credentials($access_key, $secret_key, $session_token);
} else {
$credentials = new Credentials($access_key, $secret_key);
}
global $updraftplus;
// AWS SDK V3 requires we specify a version. String 'latest' can be used but not recommended, a full list of versions for each API found here: https://docs.aws.amazon.com/aws-sdk-php/v3/api/index.html
// latest S3Client version as of 16/09/21 is version 2006-03-01
$this->config = array(
'credentials' => $credentials,
'version' => '2006-03-01',
'scheme' => ($use_ssl) ? 'https' : 'http',
'ua_append' => 'UpdraftPlus/'.$updraftplus->version,
// Using signature v4 requires a region (but see the note below)
// 'signature_version' => 'v4',
// 'region' => $this->region
// 'endpoint' => 'somethingorother.s3.amazonaws.com'
);
if ($endpoint) {
// Can't specify signature v4, as that requires stating the region - which we don't necessarily yet know.
// Later comment: however, it looks to me like in current UD (Sep 2017), $endpoint is never used for Amazon S3/Vault, and there may be cases (e.g. DigitalOcean Spaces) where we might prefer v4 (DO support v2 too, currently) without knowing a region.
$this->endpoint = $endpoint;
$this->config['endpoint'] = $endpoint;
} else {
// Using signature v4 requires a region. Also, some regions (EU Central 1, China) require signature v4 - and all support it, so we may as well use it if we can.
$this->config['signature_version'] = 'v4';
$this->config['region'] = $this->region;
}
if ($use_ssl) $this->config['http']['verify'] = $ssl_ca_cert;
$this->client = new S3MultiRegionClient($this->config);
}
/**
* Set AWS access key and secret key
*
* @param string $access_key Access key
* @param string $secret_key Secret key
* @param null|string $session_token The session token returned by AWS for temporary credentials access
* @return void
*/
public function setAuth($access_key, $secret_key, $session_token = null) {
$this->__access_key = $access_key;
$this->__secret_key = $secret_key;
$this->__session_token = $session_token;
}
/**
* Example value: 'AES256'. See: https://docs.aws.amazon.com/AmazonS3/latest/dev/SSEUsingPHPSDK.html
* Or, false to turn off.
*
* @param boolean $value Set if Value
*/
public function setServerSideEncryption($value) {
$this->_serverSideEncryption = $value;
}
/**
* Set the service region
*
* @param string $region Region
* @return void
*/
public function setRegion($region) {
$this->region = $region;
if ('eu-central-1' == $region || 'cn-north-1' == $region) {
// $this->config['signature'] = new Aws\S3\S3SignatureV4('s3');
// $this->client->setConfig($this->config);
}
}
/**
* Set the service endpoint
*
* @param string $host Hostname
* @param string $region Region
* @return void
*/
public function setEndpoint($host, $region) {
$this->endpoint = $host;
$this->region = $region;
$this->config['endpoint_provider'] = $this->return_provider();
$this->client->setConfig($this->config);
}
/**
* Set the service port
*
* @param Integer $port Port number
*/
public function setPort($port) {
// Not used with AWS (which is the only thing using this class)
self::$port = $port;
}
public function return_provider() {
$our_endpoints = array(
'endpoint' => $this->endpoint
);
if ('eu-central-1' == $this->region || 'cn-north-1' == $this->region) $our_endpoints['signatureVersion'] = 'v4';
$endpoints = array(
'version' => 2,
'endpoints' => array(
"*/s3" => $our_endpoints
)
);
return new RulesEndpointProvider($endpoints);
}
/**
* Set SSL on or off
* This code relies upon the particular pattern of SSL options-setting in s3.php in UpdraftPlus
*
* @param boolean $enabled SSL enabled
* @param boolean $validate SSL certificate validation
* @return void
*/
public function setSSL($enabled, $validate = true) {
$this->use_ssl = $enabled;
$this->use_ssl_validation = $validate;
$scheme = ($enabled) ? 'https' : 'http';
// The AWS SDK V3 client doesn't have the 'setConfig' method, so we must recreate the client instance to update the configs. However, we only do it when the '$config' variable is changed.
if ($this->config['scheme'] != $scheme) {
$this->config['scheme'] = $scheme;
$this->client = new S3MultiRegionClient($this->config);
}
}
public function getuseSSL() {
return $this->use_ssl;
}
/**
* Get SSL validation value.
*
* @return bool
*/
public function getUseSSLValidation() {
return $this->use_ssl_validation;
}
/**
* Set SSL client certificates (experimental)
*
* @param string $ssl_cert SSL client certificate
* @param string $ssl_key SSL client key
* @param string $ssl_ca_cert SSL CA cert (only required if you are having problems with your system CA cert)
* @return void
*/
public function setSSLAuth($ssl_cert = null, $ssl_key = null, $ssl_ca_cert = null) {// phpcs:ignore Generic.CodeAnalysis.UnusedFunctionParameter.Found -- Unused parameters are for future use.
if (!$this->use_ssl) return;
if (!$this->use_ssl_validation || !$ssl_ca_cert) {
$verify = false;
} else {
$verify = ('system' === $ssl_ca_cert) ? true : realpath($ssl_ca_cert);
}
// The AWS SDK V3 client doesn't have the 'setConfig' method, so we must recreate the client instance to update the configs. However, we only do it when the '$config' variable is changed.
if ($this->config['http']['verify'] != $verify) {
$this->config['http']['verify'] = $verify;
$this->client = new S3MultiRegionClient($this->config);
}
}
/**
* Set proxy information
*
* @param string $host Proxy hostname and port (localhost:1234)
* @param string $user Proxy username
* @param string $pass Proxy password
* @param constant $type CURL proxy type
* @param integer $port Port number
* @return void
*/
public function setProxy($host, $user = null, $pass = null, $type = CURLPROXY_SOCKS5, $port = null) {
$this->proxy = array('host' => $host, 'type' => $type, 'user' => $user, 'pass' => $pass, 'port' => $port);
if (!$host) return;
$wp_proxy = new WP_HTTP_Proxy();
if ($wp_proxy->send_through_proxy('https://s3.amazonaws.com')) {
global $updraftplus;
$updraftplus->log("setProxy: host=$host, user=$user, port=$port");
// N.B. Currently (02-Feb-15), only support for HTTP proxies has ever been requested for S3 in UpdraftPlus
$proxy_url = 'http://';
if ($user) {
$proxy_url .= $user;
if ($pass) $proxy_url .= ":$pass";
$proxy_url .= "@";
}
$proxy_url .= $host;
if ($port) $proxy_url .= ":$port";
$this->client->setDefaultOption('proxy', $proxy_url);
}
}
/**
* Set the error mode to exceptions
*
* @param boolean $enabled Enable exceptions
* @return void
*/
public function setExceptions($enabled = true) {
$this->useExceptions = $enabled;
}
/**
* A no-op in this compatibility layer (for now - not yet found a use)...
*
* @param boolean $use Bucket use
* @param string $bucket Bucket name
* @return boolean
*/
public function useDNSBucketName($use = true, $bucket = '') {
$this->use_dns_bucket_name = $use;
if ($use && $bucket) {
$this->setEndpoint($bucket.'.s3.amazonaws.com', $this->region);
}
return true;
}
/**
* Get contents for a bucket
* If max_keys is null this method will loop through truncated result sets
* N.B. UpdraftPlus does not use the $delimiter or $return_common_prefixes parameters (nor set $prefix or $marker to anything other than null)
* $return_common_prefixes is not implemented below
*
* @param string $bucket Bucket name
* @param string $prefix Prefix
* @param string $marker Marker (last file listed)
* @param string $max_keys Max keys (maximum number of keys to return)
* @param string $delimiter Delimiter
* @param boolean $return_common_prefixes Set to true to return CommonPrefixes
* @return array
*/
public function getBucket($bucket, $prefix = null, $marker = null, $max_keys = null, $delimiter = null, $return_common_prefixes = false) {// phpcs:ignore VariableAnalysis.CodeAnalysis.VariableAnalysis.UnusedVariable -- $return_common_prefixes is unused (commented out) so kept in just incase it is reused again
try {
if (0 == $max_keys) $max_keys = null;
$vars = array(
'Bucket' => $bucket,
'@region' => $this->region
);
if (null !== $prefix && '' !== $prefix) $vars['Prefix'] = $prefix;
if (null !== $marker && '' !== $marker) $vars['Marker'] = $marker;
if (null !== $max_keys && '' !== $max_keys) $vars['MaxKeys'] = $max_keys;
if (null !== $delimiter && '' !== $delimiter) $vars['Delimiter'] = $delimiter;
$result = $this->client->listObjects($vars);
if (!is_a($result, 'Aws\Result')) {
return false;
}
$results = array();
$next_marker = null;
// http://docs.aws.amazon.com/AmazonS3/latest/dev/ListingObjectKeysUsingPHP.html
// UpdraftPlus does not use the 'hash' result
if (empty($result['Contents'])) $result['Contents'] = array();
foreach ($result['Contents'] as $c) {
$results[(string) $c['Key']] = array(
'name' => (string) $c['Key'],
'time' => strtotime((string) $c['LastModified']),
'size' => (int) $c['Size'],
// 'hash' => trim((string)$c['ETag'])
// 'hash' => substr((string)$c['ETag'], 1, -1)
);
$next_marker = (string) $c['Key'];
}
if (isset($result['IsTruncated']) && empty($result['IsTruncated'])) return $results;
if (isset($result['NextMarker'])) $next_marker = (string) $result['NextMarker'];
// Loop through truncated results if max_keys isn't specified
if (null == $max_keys && null !== $next_marker && !empty($result['IsTruncated']))
do {
$vars['Marker'] = $next_marker;
$result = $this->client->listObjects($vars);
if (!is_a($result, 'Aws\Result') || empty($result['Contents'])) break;
foreach ($result['Contents'] as $c) {
$results[(string) $c['Key']] = array(
'name' => (string) $c['Key'],
'time' => strtotime((string) $c['LastModified']),
'size' => (int) $c['Size'],
// 'hash' => trim((string)$c['ETag'])
// 'hash' => substr((string)$c['ETag'], 1, -1)
);
$next_marker = (string) $c['Key'];
}
// if ($return_common_prefixes && isset($response->body, $response->body->CommonPrefixes))
// foreach ($response->body->CommonPrefixes as $c)
// $results[(string)$c->Prefix] = array('prefix' => (string)$c->Prefix);
if (isset($result['NextMarker']))
$next_marker = (string) $result['NextMarker'];
} while (is_a($result, 'Aws\Result') && !empty($result['Contents']) && !empty($result['IsTruncated']));
return $results;
} catch (Exception $e) {
if ($this->useExceptions) {
throw $e;
} else {
return $this->trigger_from_exception($e);
}
}
}
/**
* This is crude - nothing is returned
*
* @param string $bucket Name of the Bucket
* @return array Returns an array of results if bucket exists
*/
public function waitForBucket($bucket) {
try {
$this->client->waitUntil('BucketExists', array(
'Bucket' => $bucket,
'@region' => $this->region
));
} catch (Exception $e) {
if ($this->useExceptions) {
throw $e;
} else {
return $this->trigger_from_exception($e);
}
}
}
/**
* Put a bucket
*
* @param string $bucket Bucket name
* @param constant $acl ACL flag
* @param string $location Set as "EU" to create buckets hosted in Europe
* @return boolean Returns true or false; or may throw an exception
*/
public function putBucket($bucket, $acl = self::ACL_PRIVATE, $location = false) {
if (!$location) {
$location = $this->region;
} else {
$this->setRegion($location);
}
$bucket_vars = array(
'Bucket' => $bucket,
'ACL' => $acl,
'@region' => $this->region
);
// http://docs.aws.amazon.com/aws-sdk-php/latest/class-Aws.S3.S3Client.html#_createBucket
$location_constraint = apply_filters('updraftplus_s3_putbucket_defaultlocation', $location);
if ('us-east-1' != $location_constraint) $bucket_vars['LocationConstraint'] = $location_constraint;
try {
$result = $this->client->createBucket($bucket_vars);
if (is_object($result) && method_exists($result, 'get')) {
$metadata = $result->get('@metadata');
if (!empty($metadata) && in_array($metadata['statusCode'], array(200, 204))) {
$this->client->waitUntil('BucketExists', array(
'Bucket' => $bucket,
'@region' => $this->region
));
return true;
}
}
} catch (Exception $e) {
if ($this->useExceptions) {
throw $e;
} else {
return $this->trigger_from_exception($e);
}
}
return false;
}
/**
* Initiate a multi-part upload (http://docs.amazonwebservices.com/AmazonS3/latest/API/mpUploadInitiate.html)
*
* @param string $bucket Bucket name
* @param string $uri Object URI
* @param constant $acl ACL constant
* @param array $meta_headers Array of x-amz-meta-* headers
* @param array $request_headers Array of request headers or content type as a string
* @param constant $storage_class Storage class constant
* @return string | false
*/
public function initiateMultipartUpload($bucket, $uri, $acl = self::ACL_PRIVATE, $meta_headers = array(), $request_headers = array(), $storage_class = self::STORAGE_CLASS_STANDARD) {// phpcs:ignore Generic.CodeAnalysis.UnusedFunctionParameter.Found -- Unused parameter is present because the caller from UpdraftPlus_BackupModule_s3 class uses 6 arguments.
$vars = array(
'ACL' => $acl,
'Bucket' => $bucket,
'Key' => $uri,
'Metadata' => $meta_headers,
'StorageClass' => $storage_class,
'@region' => $this->region
);
$vars['ContentType'] = ('.gz' == strtolower(substr($uri, -3, 3))) ? 'application/octet-stream' : 'application/zip';
if (!empty($this->_serverSideEncryption)) $vars['ServerSideEncryption'] = $this->_serverSideEncryption;
try {
$result = $this->client->createMultipartUpload($vars);
if (is_object($result) && method_exists($result, 'get') && '' != $result->get('UploadId')) return $result->get('UploadId');
} catch (Exception $e) {
if ($this->useExceptions) {
throw $e;
} else {
return $this->trigger_from_exception($e);
}
}
return false;
}
/**
* Upload a part of a multi-part set (http://docs.amazonwebservices.com/AmazonS3/latest/API/mpUploadUploadPart.html)
* The chunk is read into memory, so make sure that you have enough (or patch this function to work another way!)
*
* @param string $bucket Bucket name
* @param string $uri Object URI
* @param string $upload_id upload_id returned previously from initiateMultipartUpload
* @param string $file_path file to upload content from
* @param integer $part_number sequential part number to upload
* @param integer $part_size number of bytes in each part (though final part may have fewer) - pass the same value each time (for this particular upload) - default 5Mb (which is Amazon's minimum)
* @return string (ETag) | false]
*/
public function uploadPart($bucket, $uri, $upload_id, $file_path, $part_number, $part_size = 5242880) {
$vars = array(
'Bucket' => $bucket,
'Key' => $uri,
'PartNumber' => $part_number,
'UploadId' => $upload_id,
'@region' => $this->region
);
// Where to begin
$file_offset = ($part_number - 1) * $part_size;
// Download the smallest of the remaining bytes and the part size
$file_bytes = min(filesize($file_path) - $file_offset, $part_size);
if ($file_bytes < 0) $file_bytes = 0;
// $rest->setHeader('Content-Type', 'application/octet-stream');
$data = "";
if ($handle = fopen($file_path, "rb")) {
if ($file_offset > 0) fseek($handle, $file_offset);
// $bytes_read = 0;
while ($file_bytes > 0 && $read = fread($handle, max($file_bytes, 131072))) {
$file_bytes = $file_bytes - strlen($read);
// $bytes_read += strlen($read);
$data .= $read;
}
fclose($handle);
} else {
return false;
}
$vars['Body'] = $data;
try {
$result = $this->client->uploadPart($vars);
if (is_object($result) && method_exists($result, 'get') && '' != $result->get('ETag')) return $result->get('ETag');
} catch (Exception $e) {
if ($this->useExceptions) {
throw $e;
} else {
return $this->trigger_from_exception($e);
}
}
return false;
}
/**
* Complete a multi-part upload (http://docs.amazonwebservices.com/AmazonS3/latest/API/mpUploadComplete.html)
*
* @param string $bucket Bucket name
* @param string $uri Object URI
* @param string $upload_id upload_id returned previously from initiateMultipartUpload
* @param array $parts an ordered list of eTags of previously uploaded parts from uploadPart
* @return boolean Returns either true of false
*/
public function completeMultipartUpload($bucket, $uri, $upload_id, $parts) {
$vars = array(
'Bucket' => $bucket,
'Key' => $uri,
'UploadId' => $upload_id,
'@region' => $this->region
);
$partno = 1;
$send_parts = array();
foreach ($parts as $etag) {
$send_parts[] = array('ETag' => $etag, 'PartNumber' => $partno);
$partno++;
}
$vars['MultipartUpload'] = array('Parts' => $send_parts);
try {
$result = $this->client->completeMultipartUpload($vars);
if (is_object($result) && method_exists($result, 'get') && '' != $result->get('ETag')) return true;
} catch (Exception $e) {
if ($this->useExceptions) {
throw $e;
} else {
return $this->trigger_from_exception($e);
}
}
return false;
}
/**
* 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 $meta_headers Array of x-amz-meta-* headers
* @param string $content_type Content type
* @param string $storage_class STORAGE_CLASS_STANDARD constant
* @return boolean returns either true of false
*/
public function putObjectFile($file, $bucket, $uri, $acl = self::ACL_PRIVATE, $meta_headers = array(), $content_type = null, $storage_class = self::STORAGE_CLASS_STANDARD) {
try {
$options = array(
'Bucket' => $bucket,
'Key' => $uri,
'SourceFile' => $file,
'StorageClass' => $storage_class,
'ACL' => $acl,
'@region' => $this->region
);
if ($content_type) $options['ContentType'] = $content_type;
if (!empty($this->_serverSideEncryption)) $options['ServerSideEncryption'] = $this->_serverSideEncryption;
if (!empty($meta_headers)) $options['Metadata'] = $meta_headers;
$result = $this->client->putObject($options);
if (is_object($result) && method_exists($result, 'get')) {
$metadata = $result->get('@metadata');
if (!empty($metadata) && in_array($metadata['statusCode'], array(200, 204))) return true;
}
} catch (Exception $e) {
if ($this->useExceptions) {
throw $e;
} else {
return $this->trigger_from_exception($e);
}
}
return false;
}
/**
* Put an object from a string (legacy function)
* Only the first 3 parameters vary in UpdraftPlus
*
* @param string $string Input data
* @param string $bucket Bucket name
* @param string $uri Object URI
* @param constant $acl ACL constant
* @param array $meta_headers Array of x-amz-meta-* headers
* @param string $content_type Content type
* @return boolean returns either true of false
*/
public function putObjectString($string, $bucket, $uri, $acl = self::ACL_PRIVATE, $meta_headers = array(), $content_type = 'text/plain') { // phpcs:ignore Generic.CodeAnalysis.UnusedFunctionParameter.Found -- legacy function
try {
$result = $this->client->putObject(array(
'Bucket' => $bucket,
'Key' => $uri,
'Body' => $string,
'ContentType' => $content_type,
'@region' => $this->region
));
if (is_object($result) && method_exists($result, 'get')) {
$metadata = $result->get('@metadata');
if (!empty($metadata) && in_array($metadata['statusCode'], array(200, 204))) return true;
}
} catch (Exception $e) {
if ($this->useExceptions) {
throw $e;
} else {
return $this->trigger_from_exception($e);
}
}
return false;
}
/**
* Get an object
*
* @param string $bucket Bucket name
* @param string $uri Object URI
* @param mixed $save_to Filename or resource to write to
* @param mixed $resume - if $save_to is a resource, then this is either false or the value for a Range: header; otherwise, a boolean, indicating whether to resume if possible.
* @return mixed
*/
public function getObject($bucket, $uri, $save_to = false, $resume = false) {
try {
// SaveAs: "Specify where the contents of the object should be downloaded. Can be the path to a file, a resource returned by fopen, or a Guzzle\Http\EntityBodyInterface object." - http://docs.aws.amazon.com/aws-sdk-php/latest/class-Aws.S3.S3Client.html#_getObject
$range_header = false;
if (is_resource($save_to)) {
$fp = $save_to;
if (!is_bool($resume)) $range_header = $resume;
} elseif (file_exists($save_to)) {
if ($resume && ($fp = @fopen($save_to, 'ab')) !== false) {// phpcs:ignore Generic.PHP.NoSilencedErrors.Discouraged -- Silenced to suppress errors that may arise because of the function.
$range_header = "bytes=".filesize($save_to).'-';
} else {
throw new Exception('Unable to open save file for writing: '.$save_to);
}
} else {
if (($fp = @fopen($save_to, 'wb')) !== false) {// phpcs:ignore Generic.PHP.NoSilencedErrors.Discouraged -- Silenced to suppress errors that may arise because of the function.
$range_header = false;
} else {
throw new Exception('Unable to open save file for writing: '.$save_to);
}
}
$vars = array(
'Bucket' => $bucket,
'Key' => $uri,
'SaveAs' => $fp,
'@region' => $this->region
);
if (!empty($range_header)) $vars['Range'] = $range_header;
$result = $this->client->getObject($vars);
if (is_object($result) && method_exists($result, 'get')) {
$metadata = $result->get('@metadata');
if (!empty($metadata) && in_array($metadata['statusCode'], array(200, 204, 206))) return true;
}
} catch (Exception $e) {
if ($this->useExceptions) {
throw $e;
} else {
return $this->trigger_from_exception($e);
}
}
return false;
}
/**
* Get a bucket's location
*
* @param string $bucket Bucket name
*
* @return String | Boolean - A boolean result will be false, indicating failure.
*/
public function getBucketLocation($bucket) {
try {
$result = $this->client->getBucketLocation(array(
'Bucket' => $bucket,
'@region' => $this->region
));
$location = $result->get('LocationConstraint');
if ($location) return $location;
} catch (NoSuchBucketException $e) {
return false;
} catch (Exception $e) {
if ($this->useExceptions) {
throw $e;
} else {
return $this->trigger_from_exception($e);
}
}
}
private function trigger_from_exception($e) {
trigger_error(esc_html($e->getMessage().' ('.get_class($e).') (line: '.$e->getLine().', file: '.$e->getFile().')'), E_USER_WARNING);
return false;
}
/**
* Delete an object
*
* @param string $bucket Bucket name
* @param string $uri Object URI
* @return boolean
*/
public function deleteObject($bucket, $uri) {
try {
$result = $this->client->deleteObject(array(
'Bucket' => $bucket,
'Key' => $uri,
'@region' => $this->region
));
if (is_object($result) && method_exists($result, 'get')) {
$metadata = $result->get('@metadata');
if (!empty($metadata) && in_array($metadata['statusCode'], array(200, 204))) return true;
}
} catch (Exception $e) {
if ($this->useExceptions) {
throw $e;
} else {
return $this->trigger_from_exception($e);
}
}
return false;
}
public function setCORS($policy) {
try {
$cors = $this->client->putBucketCors($policy);
if (is_object($cors) && method_exists($cors, 'get')) {
$metadata = $cors->get('@metadata');
if (!empty($metadata) && in_array($metadata['statusCode'], array(200, 204))) return true;
}
} catch (Exception $e) {
if ($this->useExceptions) {
throw $e;
} else {
return $this->trigger_from_exception($e);
}
}
return false;
}
/**
* Get or create IAM instance
*
* @return object $this->iam
*/
private function getIAM() {
if (!$this->iam) {
$opts = array(
'credentials' => array(
'key' => $this->__access_key,
'secret' => $this->__secret_key
),
'version' => '2010-05-08',
'region' => $this->region
);
$this->iam = new Aws\Iam\IamClient($opts);
}
return $this->iam;
}
/**
* Create IAM user
*
* @param array $options
*
* @return array $response
*/
public function createUser($options) {
$iam = $this->getIAM();
try {
$response = $iam->createUser(array(
'Path' => $options['Path'],
'UserName' => $options['UserName']
));
} catch (Guzzle\Http\Exception\ClientErrorResponseException $e) {
$response = $e->getResponse();
$code = $response->getStatusCode();
return array(
'code' => $code,
'error' => $e->getMessage()
);
}
return $response;
}
/**
* Create access key for IAM user
*
* @param string $username
*
* @return array $response
*/
public function createAccessKey($username) {
$iam = $this->getIAM();
try {
$response = $iam->createAccessKey(array('UserName' => $username));
} catch (Guzzle\Http\Exception\ClientErrorResponseException $e) {
return array(
'error' => $e->getMessage()
);
}
return $response;
}
/**
* Put user policy IAM user
*
* @param array $options
*
* @return array $response
*/
public function putUserPolicy($options) {
$iam = $this->getIAM();
try {
$response = $iam->putUserPolicy(array(
'UserName' => $options['UserName'],
'PolicyName' => $options['PolicyName'],
'PolicyDocument' => $options['PolicyDocument']
));
} catch (Guzzle\Http\Exception\ClientErrorResponseException $e) {
return array(
'error' => $e->getMessage()
);
}
return $response;
}
}