| 1 |
<?php |
| 2 |
|
| 3 |
namespace FluentCart\App\Services\FileSystem\Drivers\S3; |
| 4 |
|
| 5 |
class S3ConnectionVerify |
| 6 |
{ |
| 7 |
private const DEFAULT_REGION = 'us-east-1'; |
| 8 |
private const MAX_REGION_RETRIES = 2; |
| 9 |
|
| 10 |
private $date; |
| 11 |
private $timeStamp; |
| 12 |
private string $accessKey; |
| 13 |
private string $bucket; |
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private string $hashAlgorithm = 'sha256'; |
| 15 |
private string $httpMethod; |
| 16 |
private string $region; |
| 17 |
private string $secretKey; |
| 18 |
private string $signature; |
| 19 |
private string $requestUrl; |
| 20 |
private ?string $sessionToken = null; |
| 21 |
private string $payloadBody = ''; |
| 22 |
private ?string $contentMD5 = null; |
| 23 |
private int $regionRetryCount = 0; |
| 24 |
|
| 25 |
public static function verify(string $secret, string $accessKey, ?string $sessionToken = null, string $bucket = '', string $region = 'us-east-1') |
| 26 |
{ |
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$validation = self::validateRequestInputs($region, $bucket); |
| 28 |
if (is_wp_error($validation)) { |
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return $validation; |
| 30 |
} |
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|
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$self = new static($secret, $accessKey, $sessionToken, $region); |
| 33 |
if ($bucket) { |
| 34 |
$self->bucket = $bucket; |
| 35 |
$self->requestUrl = $self->getBucketRequestUrl('?max-keys=1'); |
| 36 |
$self->httpMethod = 'GET'; |
| 37 |
} |
| 38 |
|
| 39 |
return $self->testConnection(); |
| 40 |
} |
| 41 |
|
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public static function checkBucketExistence(string $secret, string $accessKey, ?string $sessionToken = null, string $bucket = '', string $region = 'us-east-1') |
| 43 |
{ |
| 44 |
$validation = self::validateRequestInputs($region, $bucket); |
| 45 |
if (is_wp_error($validation)) { |
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return $validation; |
| 47 |
} |
| 48 |
|
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$self = new static($secret, $accessKey, $sessionToken, $region); |
| 50 |
$self->bucket = $bucket; |
| 51 |
$self->requestUrl = $self->getBucketRequestUrl('?max-keys=1'); |
| 52 |
$self->httpMethod = 'GET'; |
| 53 |
|
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// Use a simplified test connection that doesn't check public access settings |
| 55 |
return $self->testBucketConnection(); |
| 56 |
} |
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|
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public static function updatePublicAccessBlock(string $secret, string $accessKey, ?string $sessionToken = null, string $bucket = '', bool $enable = true, string $region = 'us-east-1') |
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{ |
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$validation = self::validateRequestInputs($region, $bucket); |
| 61 |
if (is_wp_error($validation)) { |
| 62 |
return $validation; |
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} |
| 64 |
|
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$self = new static($secret, $accessKey, $sessionToken, $region); |
| 66 |
$self->bucket = $bucket; |
| 67 |
return $self->setPublicAccessBlock($enable); |
| 68 |
} |
| 69 |
|
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public static function updateObjectOwnership(string $secret, string $accessKey, ?string $sessionToken = null, string $bucket = '', bool $enforce = true, string $region = 'us-east-1') |
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{ |
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$validation = self::validateRequestInputs($region, $bucket); |
| 73 |
if (is_wp_error($validation)) { |
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return $validation; |
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} |
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|
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$self = new static($secret, $accessKey, $sessionToken, $region); |
| 78 |
$self->bucket = $bucket; |
| 79 |
return $self->setObjectOwnership($enforce); |
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} |
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|
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public static function checkSecuritySettings(string $secret, string $accessKey, ?string $sessionToken = null, string $bucket = '', string $region = 'us-east-1') |
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{ |
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$validation = self::validateRequestInputs($region, $bucket); |
| 85 |
if (is_wp_error($validation)) { |
| 86 |
return $validation; |
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} |
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|
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$self = new static($secret, $accessKey, $sessionToken, $region); |
| 90 |
$self->bucket = $bucket; |
| 91 |
|
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$publicAccess = $self->checkPublicAccessBlock(); |
| 93 |
$objectOwnership = $self->checkObjectOwnership(); |
| 94 |
|
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return [ |
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'block_public_access' => !is_wp_error($publicAccess) ? $publicAccess : false, |
| 97 |
'object_ownership' => !is_wp_error($objectOwnership) ? $objectOwnership : false |
| 98 |
]; |
| 99 |
} |
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|
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public function __construct(string $secret, string $accessKey, ?string $sessionToken = null, string $region = 'us-east-1') |
| 102 |
{ |
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$this->secretKey = $secret; |
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$this->accessKey = $accessKey; |
| 105 |
$this->sessionToken = $sessionToken; |
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$this->region = $region; |
| 107 |
$this->bucket = ''; |
| 108 |
|
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$this->httpMethod = "GET"; |
| 110 |
$this->timeStamp = gmdate('Ymd\THis\Z'); |
| 111 |
$this->date = substr($this->timeStamp, 0, 8); |
| 112 |
$this->requestUrl = $this->getServiceListUrl(); |
| 113 |
|
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// Signature generation happens in testConnection now or we regenerate it there if we change params |
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} |
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|
| 117 |
public function testConnection() |
| 118 |
{ |
| 119 |
add_filter('http_request_timeout', function () { |
| 120 |
return 30; |
| 121 |
}); |
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|
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// Regenerate signature because request params might have changed (if bucket was set) |
| 124 |
$this->signature = $this->generateSignature(); |
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|
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// Ensure headers are generated with new info |
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$headers = $this->getHeaders(); |
| 128 |
|
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$response = wp_remote_request($this->requestUrl, [ |
| 130 |
'method' => $this->httpMethod, |
| 131 |
'headers' => $headers |
| 132 |
]); |
| 133 |
|
| 134 |
$responseCode = wp_remote_retrieve_response_code($response); |
| 135 |
|
| 136 |
// Success check |
| 137 |
if ($responseCode >= 200 && $responseCode < 300) { |
| 138 |
$data = [ |
| 139 |
'message' => __('Successfully verified S3 connection!', 'fluent-cart'), |
| 140 |
'code' => $responseCode, |
| 141 |
'region' => $this->region |
| 142 |
]; |
| 143 |
|
| 144 |
if ($this->bucket) { |
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// Check Public Access Block |
| 146 |
$publicAccess = $this->checkPublicAccessBlock(); |
| 147 |
if (!is_wp_error($publicAccess)) { |
| 148 |
$data['block_public_access'] = $publicAccess; |
| 149 |
} |
| 150 |
|
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// Check Object Ownership |
| 152 |
$objectOwnership = $this->checkObjectOwnership(); |
| 153 |
if (!is_wp_error($objectOwnership)) { |
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$data['object_ownership'] = $objectOwnership; |
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} |
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} |
| 157 |
|
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return $data; |
| 159 |
} |
| 160 |
|
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// Check for Region Mismatch (301 PermanentRedirect or 400 with specific headers) |
| 162 |
$detectedRegion = wp_remote_retrieve_header($response, 'x-amz-bucket-region'); |
| 163 |
if (($responseCode == 301 || $responseCode == 400) && $detectedRegion && $detectedRegion !== $this->region) { |
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$retryResult = $this->retryWithRegion($detectedRegion, '?max-keys=1'); |
| 165 |
if (is_wp_error($retryResult)) { |
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return $retryResult; |
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} |
| 168 |
|
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return $this->testConnection(); |
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} |
| 171 |
|
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// Error Handling |
| 173 |
$error_message = __('Invalid S3 credentials', 'fluent-cart'); |
| 174 |
$errorCode = 'invalid_credentials'; |
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|
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$responseBody = wp_remote_retrieve_body($response); |
| 177 |
|
| 178 |
if (!empty($responseBody)) { |
| 179 |
$xml = simplexml_load_string($responseBody); |
| 180 |
if ($xml) { |
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$awsCode = isset($xml->Code) ? (string)$xml->Code : ''; |
| 182 |
$awsMessage = isset($xml->Message) ? (string) $xml->Message : ''; |
| 183 |
|
| 184 |
// Check specific AWS error codes |
| 185 |
if ($awsCode === 'NoSuchBucket') { |
| 186 |
$msg = $awsMessage ?: sprintf(__('Bucket (%s) does not exist.', 'fluent-cart'), $this->bucket); |
| 187 |
return new \WP_Error('bucket_not_found', $msg); |
| 188 |
} |
| 189 |
|
| 190 |
if ($awsCode === 'PermanentRedirect') { |
| 191 |
$error_message = $awsMessage ?: __('The bucket you are attempting to access must be addressed using the specified endpoint.', 'fluent-cart'); |
| 192 |
if ($detectedRegion) { |
| 193 |
$error_message .= ' ' . sprintf(__('Correct Region: %s', 'fluent-cart'), $detectedRegion); |
| 194 |
} |
| 195 |
return new \WP_Error('region_mismatch', $error_message); |
| 196 |
} |
| 197 |
|
| 198 |
if ($awsCode === 'AccessDenied' || $responseCode == 403) { |
| 199 |
// If we are checking credentials only (no bucket), generic invalid strings |
| 200 |
if (!$this->bucket) { |
| 201 |
$error_message = $awsMessage ?: __('Invalid S3 credentials', 'fluent-cart'); |
| 202 |
} else { |
| 203 |
$error_message = $awsMessage ?: sprintf(__('Access forbidden to the configured bucket (%s). Check permissions.', 'fluent-cart'), $this->bucket); |
| 204 |
$errorCode = 'bucket_forbidden'; |
| 205 |
} |
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} |
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|
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// Use AWS message if available and we haven't set a custom one |
| 209 |
if ($awsMessage && $error_message === __('Invalid S3 credentials', 'fluent-cart') && $errorCode === 'invalid_credentials') { |
| 210 |
$error_message = $awsMessage; |
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} |
| 212 |
|
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if (strpos($error_message, 'User:') !== false) { |
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$error_message = __('Your IAM user does not have permission to use S3 buckets', 'fluent-cart'); |
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} |
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} |
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} |
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|
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// If we didn't get XML or couldn't parse it, fallback to status codes |
| 220 |
if ($this->bucket) { |
| 221 |
if ($responseCode == 404) { |
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return new \WP_Error('bucket_not_found', sprintf(__('Media cannot be offloaded because a bucket with the configured name (%s) does not exist.', 'fluent-cart'), $this->bucket)); |
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} |
| 224 |
if ($responseCode == 403 && $errorCode === 'invalid_credentials') { |
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// Use more specific error if we haven't already |
| 226 |
return new \WP_Error('bucket_forbidden', sprintf(__('Access forbidden to the configured bucket (%s). Check permissions.', 'fluent-cart'), $this->bucket)); |
| 227 |
} |
| 228 |
} |
| 229 |
|
| 230 |
return new \WP_Error($responseCode, $error_message); |
| 231 |
} |
| 232 |
|
| 233 |
public function testBucketConnection() |
| 234 |
{ |
| 235 |
add_filter('http_request_timeout', function () { |
| 236 |
return 30; |
| 237 |
}); |
| 238 |
|
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// Regenerate signature because request params might have changed |
| 240 |
$this->signature = $this->generateSignature(); |
| 241 |
$headers = $this->getHeaders(); |
| 242 |
|
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$response = wp_remote_request($this->requestUrl, [ |
| 244 |
'method' => $this->httpMethod, |
| 245 |
'headers' => $headers |
| 246 |
]); |
| 247 |
|
| 248 |
$responseCode = wp_remote_retrieve_response_code($response); |
| 249 |
|
| 250 |
// Success check |
| 251 |
if ($responseCode >= 200 && $responseCode < 300) { |
| 252 |
return [ |
| 253 |
'message' => __('Successfully verified bucket!', 'fluent-cart'), |
| 254 |
'code' => $responseCode, |
| 255 |
'region' => $this->region |
| 256 |
]; |
| 257 |
} |
| 258 |
|
| 259 |
// Check for Region Mismatch (301 PermanentRedirect or 400 with specific headers) |
| 260 |
$detectedRegion = wp_remote_retrieve_header($response, 'x-amz-bucket-region'); |
| 261 |
|
| 262 |
// If header is missing or we are in a redirect loop, try GetBucketLocation API |
| 263 |
if (($responseCode == 301 || $responseCode == 400) && (!$detectedRegion || $detectedRegion !== $this->region)) { |
| 264 |
// Try explicit GetBucketLocation call |
| 265 |
$locationRegion = $this->getBucketLocation(); |
| 266 |
if ($locationRegion && $locationRegion !== $this->region) { |
| 267 |
$detectedRegion = $locationRegion; |
| 268 |
} |
| 269 |
|
| 270 |
// Fallback: Try HEAD request (unsigned) which often returns region header even on 400/403 |
| 271 |
if (!$detectedRegion) { |
| 272 |
$headUrl = $this->getBucketBaseUrlForRegion(self::DEFAULT_REGION); |
| 273 |
$headResponse = wp_remote_head($headUrl); |
| 274 |
if (!is_wp_error($headResponse)) { |
| 275 |
$headRegion = wp_remote_retrieve_header($headResponse, 'x-amz-bucket-region'); |
| 276 |
if ($headRegion) { |
| 277 |
$detectedRegion = $headRegion; |
| 278 |
} |
| 279 |
} |
| 280 |
} |
| 281 |
} |
| 282 |
|
| 283 |
|
| 284 |
if (($responseCode == 301 || $responseCode == 400) && $detectedRegion && $detectedRegion !== $this->region) { |
| 285 |
$retryResult = $this->retryWithRegion($detectedRegion, '?max-keys=1'); |
| 286 |
if (is_wp_error($retryResult)) { |
| 287 |
return $retryResult; |
| 288 |
} |
| 289 |
|
| 290 |
return $this->testBucketConnection(); |
| 291 |
} |
| 292 |
|
| 293 |
// Error Handling reuse |
| 294 |
$error_message = __('Invalid S3 credentials', 'fluent-cart'); |
| 295 |
$errorCode = 'invalid_credentials'; |
| 296 |
|
| 297 |
$responseBody = wp_remote_retrieve_body($response); |
| 298 |
|
| 299 |
if (!empty($responseBody)) { |
| 300 |
$xml = simplexml_load_string($responseBody); |
| 301 |
if ($xml) { |
| 302 |
$awsCode = isset($xml->Code) ? (string)$xml->Code : ''; |
| 303 |
$awsMessage = isset($xml->Message) ? (string) $xml->Message : ''; |
| 304 |
|
| 305 |
if ($awsCode === 'NoSuchBucket') { |
| 306 |
$msg = $awsMessage ?: sprintf(__('Bucket (%s) does not exist.', 'fluent-cart'), $this->bucket); |
| 307 |
return new \WP_Error('bucket_not_found', $msg); |
| 308 |
} |
| 309 |
|
| 310 |
if ($awsCode === 'PermanentRedirect') { |
| 311 |
// Ensure we display the endpoint message if we couldn't auto-redirect |
| 312 |
$error_message = $awsMessage ?: __('The bucket you are attempting to access must be addressed using the specified endpoint.', 'fluent-cart'); |
| 313 |
// We should ideally tell the user the correct region if we know it |
| 314 |
if ($detectedRegion) { |
| 315 |
$error_message .= ' ' . sprintf(__('Correct Region: %s', 'fluent-cart'), $detectedRegion); |
| 316 |
} |
| 317 |
return new \WP_Error('region_mismatch', $error_message); |
| 318 |
} |
| 319 |
|
| 320 |
if ($awsCode === 'AccessDenied' || $responseCode == 403) { |
| 321 |
$error_message = $awsMessage ?: sprintf(__('Access forbidden to the configured bucket (%s). Check permissions.', 'fluent-cart'), $this->bucket); |
| 322 |
} |
| 323 |
|
| 324 |
if ($awsMessage && $error_message === __('Invalid S3 credentials', 'fluent-cart')) { |
| 325 |
$error_message = $awsMessage; |
| 326 |
} |
| 327 |
} |
| 328 |
} |
| 329 |
|
| 330 |
if ($responseCode == 404) { |
| 331 |
return new \WP_Error('bucket_not_found', sprintf(__('Bucket (%s) does not exist.', 'fluent-cart'), $this->bucket)); |
| 332 |
} |
| 333 |
|
| 334 |
return new \WP_Error($responseCode, $error_message); |
| 335 |
} |
| 336 |
|
| 337 |
public function checkPublicAccessBlock() |
| 338 |
{ |
| 339 |
// Save current state |
| 340 |
$originalRequestUrl = $this->requestUrl; |
| 341 |
$originalHttpMethod = $this->httpMethod; |
| 342 |
$originalContentMD5 = $this->contentMD5; |
| 343 |
|
| 344 |
// Set up for GET request (read public access block) |
| 345 |
$this->requestUrl = $this->getBucketRequestUrl('/?publicAccessBlock'); |
| 346 |
$this->httpMethod = 'GET'; |
| 347 |
$this->contentMD5 = null; // No body for GET request |
| 348 |
|
| 349 |
// Regenerate signature because request params changed |
| 350 |
$this->signature = $this->generateSignature(); |
| 351 |
|
| 352 |
// Generate headers with new signature |
| 353 |
$headers = $this->getHeaders(); |
| 354 |
|
| 355 |
$response = wp_remote_request($this->requestUrl, [ |
| 356 |
'method' => $this->httpMethod, |
| 357 |
'headers' => $headers |
| 358 |
]); |
| 359 |
|
| 360 |
if (is_wp_error($response)) { |
| 361 |
return $response; |
| 362 |
} |
| 363 |
|
| 364 |
// Restore original values |
| 365 |
$this->requestUrl = $originalRequestUrl; |
| 366 |
$this->httpMethod = $originalHttpMethod; |
| 367 |
$this->contentMD5 = $originalContentMD5; |
| 368 |
|
| 369 |
$responseCode = wp_remote_retrieve_response_code($response); |
| 370 |
|
| 371 |
if ($responseCode >= 200 && $responseCode < 300) { |
| 372 |
$body = wp_remote_retrieve_body($response); |
| 373 |
$xml = simplexml_load_string($body); |
| 374 |
|
| 375 |
// AWS returns root element <PublicAccessBlockConfiguration> |
| 376 |
// $xml IS the configuration object, not a wrapper containing it. |
| 377 |
if ($xml) { |
| 378 |
// Check if all block settings are enabled |
| 379 |
$blockPublicAcls = (string)$xml->BlockPublicAcls === 'true'; |
| 380 |
$ignorePublicAcls = (string)$xml->IgnorePublicAcls === 'true'; |
| 381 |
$blockPublicPolicy = (string)$xml->BlockPublicPolicy === 'true'; |
| 382 |
$restrictPublicBuckets = (string)$xml->RestrictPublicBuckets === 'true'; |
| 383 |
|
| 384 |
// If any is true, we can consider it as having some blocking, but usually "Block All" means all are true. |
| 385 |
return $blockPublicAcls && $ignorePublicAcls && $blockPublicPolicy && $restrictPublicBuckets; |
| 386 |
} |
| 387 |
} else if ($responseCode == 404) { |
| 388 |
// 404 on ?publicAccessBlock means no configuration exists, so it's disabled. |
| 389 |
return false; |
| 390 |
} |
| 391 |
|
| 392 |
return new \WP_Error('public_access_check_failed', __('Could not check public access settings', 'fluent-cart')); |
| 393 |
} |
| 394 |
|
| 395 |
public function setPublicAccessBlock(bool $enable) |
| 396 |
{ |
| 397 |
// Save current requestUrl and method |
| 398 |
$originalRequestUrl = $this->requestUrl; |
| 399 |
$originalHttpMethod = $this->httpMethod; |
| 400 |
|
| 401 |
$this->requestUrl = $this->getBucketRequestUrl('/?publicAccessBlock'); |
| 402 |
$this->httpMethod = 'PUT'; |
| 403 |
|
| 404 |
$setting = $enable ? 'true' : 'false'; |
| 405 |
$this->payloadBody = <<<XML |
| 406 |
<PublicAccessBlockConfiguration xmlns="http://s3.amazonaws.com/doc/2006-03-01/"> |
| 407 |
<BlockPublicAcls>{$setting}</BlockPublicAcls> |
| 408 |
<IgnorePublicAcls>{$setting}</IgnorePublicAcls> |
| 409 |
<BlockPublicPolicy>{$setting}</BlockPublicPolicy> |
| 410 |
<RestrictPublicBuckets>{$setting}</RestrictPublicBuckets> |
| 411 |
</PublicAccessBlockConfiguration> |
| 412 |
XML; |
| 413 |
|
| 414 |
$this->signature = $this->generateSignature(); |
| 415 |
$headers = $this->getHeaders(); |
| 416 |
$headers['Content-Type'] = 'application/xml'; |
| 417 |
|
| 418 |
$response = wp_remote_request($this->requestUrl, [ |
| 419 |
'method' => $this->httpMethod, |
| 420 |
'headers' => $headers, |
| 421 |
'body' => $this->payloadBody |
| 422 |
]); |
| 423 |
|
| 424 |
if (is_wp_error($response)) { |
| 425 |
return $response; |
| 426 |
} |
| 427 |
|
| 428 |
// Restore |
| 429 |
$this->requestUrl = $originalRequestUrl; |
| 430 |
$this->httpMethod = $originalHttpMethod; |
| 431 |
$this->payloadBody = ''; |
| 432 |
|
| 433 |
$responseCode = wp_remote_retrieve_response_code($response); |
| 434 |
|
| 435 |
if ($responseCode >= 200 && $responseCode < 300) { |
| 436 |
return true; |
| 437 |
} |
| 438 |
|
| 439 |
$body = wp_remote_retrieve_body($response); |
| 440 |
$xml = simplexml_load_string($body); |
| 441 |
$errorMsg = $xml && isset($xml->Message) ? (string)$xml->Message : $body; |
| 442 |
/* translators: %1$s: error message from S3 API */ |
| 443 |
return new \WP_Error('s3_update_failed', sprintf(__('Failed to update S3 Public Access Block: %1$s', 'fluent-cart'), $errorMsg)); |
| 444 |
} |
| 445 |
|
| 446 |
public function checkObjectOwnership() |
| 447 |
{ |
| 448 |
$originalRequestUrl = $this->requestUrl; |
| 449 |
$originalHttpMethod = $this->httpMethod; |
| 450 |
$originalContentMD5 = $this->contentMD5; |
| 451 |
|
| 452 |
// Set up for GET request (read ownership controls) |
| 453 |
$this->requestUrl = $this->getBucketRequestUrl('/?ownershipControls'); |
| 454 |
$this->httpMethod = 'GET'; |
| 455 |
$this->contentMD5 = null; // No body for GET request |
| 456 |
|
| 457 |
$this->signature = $this->generateSignature(); |
| 458 |
$headers = $this->getHeaders(); |
| 459 |
|
| 460 |
$response = wp_remote_request($this->requestUrl, [ |
| 461 |
'method' => $this->httpMethod, |
| 462 |
'headers' => $headers |
| 463 |
]); |
| 464 |
|
| 465 |
if (is_wp_error($response)) { |
| 466 |
return $response; |
| 467 |
} |
| 468 |
|
| 469 |
// Restore original values |
| 470 |
$this->requestUrl = $originalRequestUrl; |
| 471 |
$this->httpMethod = $originalHttpMethod; |
| 472 |
$this->contentMD5 = $originalContentMD5; |
| 473 |
|
| 474 |
$responseCode = wp_remote_retrieve_response_code($response); |
| 475 |
|
| 476 |
if ($responseCode >= 200 && $responseCode < 300) { |
| 477 |
$body = wp_remote_retrieve_body($response); |
| 478 |
$xml = simplexml_load_string($body); |
| 479 |
|
| 480 |
// AWS response format: <OwnershipControls><Rule><ObjectOwnership>VALUE</ObjectOwnership></Rule></OwnershipControls> |
| 481 |
if ($xml && isset($xml->Rule->ObjectOwnership)) { |
| 482 |
$ownership = (string)$xml->Rule->ObjectOwnership; |
| 483 |
// BucketOwnerEnforced = Enforced (ACLs disabled) |
| 484 |
// BucketOwnerPreferred = ACLs enabled (usually) |
| 485 |
return $ownership === 'BucketOwnerEnforced'; |
| 486 |
} |
| 487 |
} else if ($responseCode == 404) { |
| 488 |
// If ownership controls are not found, it implies legacy behavior (ObjectWriter), which means ACLs are enabled (Not Enforced). |
| 489 |
return false; |
| 490 |
} |
| 491 |
|
| 492 |
return new \WP_Error('ownership_check_failed', __('Could not check object ownership settings', 'fluent-cart')); |
| 493 |
} |
| 494 |
|
| 495 |
public function getBucketLocation() |
| 496 |
{ |
| 497 |
$originalRequestUrl = $this->requestUrl; |
| 498 |
$originalHttpMethod = $this->httpMethod; |
| 499 |
$originalContentMD5 = $this->contentMD5; |
| 500 |
|
| 501 |
// S3 API: GET /?location |
| 502 |
// This request must be signed, but standard auth works. |
| 503 |
// It returns LocationConstraint XML. |
| 504 |
|
| 505 |
$this->requestUrl = $this->getBucketRequestUrl('/?location'); |
| 506 |
|
| 507 |
$this->httpMethod = 'GET'; |
| 508 |
$this->contentMD5 = null; |
| 509 |
|
| 510 |
$this->signature = $this->generateSignature(); |
| 511 |
$headers = $this->getHeaders(); |
| 512 |
|
| 513 |
$response = wp_remote_request($this->requestUrl, [ |
| 514 |
'method' => $this->httpMethod, |
| 515 |
'headers' => $headers |
| 516 |
]); |
| 517 |
|
| 518 |
// Restore |
| 519 |
$this->requestUrl = $originalRequestUrl; |
| 520 |
$this->httpMethod = $originalHttpMethod; |
| 521 |
$this->contentMD5 = $originalContentMD5; |
| 522 |
|
| 523 |
$responseCode = wp_remote_retrieve_response_code($response); |
| 524 |
|
| 525 |
if ($responseCode >= 200 && $responseCode < 300) { |
| 526 |
$body = wp_remote_retrieve_body($response); |
| 527 |
$xml = simplexml_load_string($body); |
| 528 |
if ($xml) { |
| 529 |
$location = (string)$xml ?: self::DEFAULT_REGION; |
| 530 |
|
| 531 |
return S3InputValidator::isValidRegion($location) ? $location : null; |
| 532 |
} |
| 533 |
} |
| 534 |
|
| 535 |
return null; // Could not determine |
| 536 |
} |
| 537 |
|
| 538 |
public function setObjectOwnership(bool $enforce) |
| 539 |
{ |
| 540 |
$originalRequestUrl = $this->requestUrl; |
| 541 |
$originalHttpMethod = $this->httpMethod; |
| 542 |
|
| 543 |
$this->requestUrl = $this->getBucketRequestUrl('/?ownershipControls'); |
| 544 |
$this->httpMethod = 'PUT'; |
| 545 |
|
| 546 |
// BucketOwnerEnforced = Enforced (ACLs disabled) |
| 547 |
// BucketOwnerPreferred = ACLs enabled |
| 548 |
$setting = $enforce ? 'BucketOwnerEnforced' : 'BucketOwnerPreferred'; |
| 549 |
|
| 550 |
$this->payloadBody = '<OwnershipControls xmlns="http://s3.amazonaws.com/doc/2006-03-01/"><Rule><ObjectOwnership>' . $setting . '</ObjectOwnership></Rule></OwnershipControls>'; |
| 551 |
|
| 552 |
// Set Content-MD5 property for signature generation |
| 553 |
$this->contentMD5 = base64_encode(md5($this->payloadBody, true)); |
| 554 |
|
| 555 |
$this->signature = $this->generateSignature(); |
| 556 |
$headers = $this->getHeaders(); |
| 557 |
|
| 558 |
// Add Content-Type header |
| 559 |
$headers['Content-Type'] = 'application/xml'; |
| 560 |
|
| 561 |
$response = wp_remote_request($this->requestUrl, [ |
| 562 |
'method' => $this->httpMethod, |
| 563 |
'headers' => $headers, |
| 564 |
'body' => $this->payloadBody |
| 565 |
]); |
| 566 |
|
| 567 |
if (is_wp_error($response)) { |
| 568 |
return $response; |
| 569 |
} |
| 570 |
|
| 571 |
$this->requestUrl = $originalRequestUrl; |
| 572 |
$this->httpMethod = $originalHttpMethod; |
| 573 |
$this->payloadBody = ''; |
| 574 |
$this->contentMD5 = null; // Reset MD5 after PUT operation |
| 575 |
|
| 576 |
$responseCode = wp_remote_retrieve_response_code($response); |
| 577 |
|
| 578 |
if ($responseCode >= 200 && $responseCode < 300) { |
| 579 |
return true; |
| 580 |
} |
| 581 |
|
| 582 |
$body = wp_remote_retrieve_body($response); |
| 583 |
$xml = simplexml_load_string($body); |
| 584 |
$errorMsg = $xml && isset($xml->Message) ? (string)$xml->Message : $body; |
| 585 |
/* translators: %1$s: error message from S3 API */ |
| 586 |
return new \WP_Error('s3_update_failed_ownership', sprintf(__('Failed to update S3 Object Ownership: %1$s', 'fluent-cart'), $errorMsg)); |
| 587 |
} |
| 588 |
|
| 589 |
private static function validateRequestInputs(string $region, string $bucket = '') |
| 590 |
{ |
| 591 |
$regionValidation = S3InputValidator::validateRegion($region); |
| 592 |
if (is_wp_error($regionValidation)) { |
| 593 |
return $regionValidation; |
| 594 |
} |
| 595 |
|
| 596 |
if ($bucket !== '') { |
| 597 |
$bucketValidation = S3InputValidator::validateBucket($bucket); |
| 598 |
if (is_wp_error($bucketValidation)) { |
| 599 |
return $bucketValidation; |
| 600 |
} |
| 601 |
} |
| 602 |
|
| 603 |
return true; |
| 604 |
} |
| 605 |
|
| 606 |
private function getServiceListUrl(): string |
| 607 |
{ |
| 608 |
$host = $this->region === self::DEFAULT_REGION |
| 609 |
? 's3.amazonaws.com' |
| 610 |
: "s3.{$this->region}.amazonaws.com"; |
| 611 |
|
| 612 |
return 'https://' . $host . '/?list-type=2&encoding-type=url&max-keys=1'; |
| 613 |
} |
| 614 |
|
| 615 |
private function getBucketBaseUrlForRegion(string $region): string |
| 616 |
{ |
| 617 |
if ($this->bucket === '') { |
| 618 |
return $this->getServiceListUrl(); |
| 619 |
} |
| 620 |
|
| 621 |
if (strpos($this->bucket, '.') !== false) { |
| 622 |
$host = $region === self::DEFAULT_REGION ? 's3.amazonaws.com' : "s3.{$region}.amazonaws.com"; |
| 623 |
return 'https://' . $host . '/' . $this->bucket . '/'; |
| 624 |
} |
| 625 |
|
| 626 |
$host = $region === self::DEFAULT_REGION |
| 627 |
? "{$this->bucket}.s3.amazonaws.com" |
| 628 |
: "{$this->bucket}.s3.{$region}.amazonaws.com"; |
| 629 |
|
| 630 |
return 'https://' . $host; |
| 631 |
} |
| 632 |
|
| 633 |
private function getBucketRequestUrl(string $querySuffix = '?max-keys=1'): string |
| 634 |
{ |
| 635 |
return $this->getBucketBaseUrlForRegion($this->region) . $querySuffix; |
| 636 |
} |
| 637 |
|
| 638 |
private function retryWithRegion(string $detectedRegion, string $querySuffix) |
| 639 |
{ |
| 640 |
$regionValidation = S3InputValidator::validateRegion($detectedRegion); |
| 641 |
if (is_wp_error($regionValidation)) { |
| 642 |
return $regionValidation; |
| 643 |
} |
| 644 |
|
| 645 |
if ($this->regionRetryCount >= self::MAX_REGION_RETRIES) { |
| 646 |
return new \WP_Error( |
| 647 |
'region_retry_limit', |
| 648 |
__('Unable to determine the correct S3 region after multiple attempts. Please verify the bucket region and try again.', 'fluent-cart') |
| 649 |
); |
| 650 |
} |
| 651 |
|
| 652 |
$this->regionRetryCount++; |
| 653 |
$this->region = $detectedRegion; |
| 654 |
$this->requestUrl = $this->bucket ? $this->getBucketRequestUrl($querySuffix) : $this->getServiceListUrl(); |
| 655 |
|
| 656 |
return true; |
| 657 |
} |
| 658 |
|
| 659 |
private function generateSignature() |
| 660 |
{ |
| 661 |
return hash_hmac( |
| 662 |
$this->hashAlgorithm, |
| 663 |
$this->createStringToSign(), |
| 664 |
$this->getSigningKey() |
| 665 |
); |
| 666 |
} |
| 667 |
|
| 668 |
private function createStringToSign(): string |
| 669 |
{ |
| 670 |
$hash = hash($this->hashAlgorithm, $this->createCanonicalUrl()); |
| 671 |
return "AWS4-HMAC-SHA256\n{$this->timeStamp}\n{$this->getScope()}\n{$hash}"; |
| 672 |
} |
| 673 |
|
| 674 |
private function createCanonicalUrl(): string |
| 675 |
{ |
| 676 |
$canonicalQuery = "encoding-type=url&list-type=2&max-keys=1"; |
| 677 |
|
| 678 |
// Logic to construct query params correctly for different requests |
| 679 |
// If verify() was called with a bucket, we set requestUrl with ?max-keys=1 on the root of the bucket path |
| 680 |
// But if we are checking public access block, the query is different. |
| 681 |
// We need to handle this based on the current requestUrl or context. |
| 682 |
// Simplified approach: rely on the fact that for the main check, it IS max-keys=1. |
| 683 |
|
| 684 |
if ($this->bucket) { |
| 685 |
// For bucket check (GET /?max-keys=1) |
| 686 |
if (strpos($this->requestUrl, 'max-keys=1') !== false) { |
| 687 |
$canonicalQuery = "max-keys=1"; |
| 688 |
} else if (strpos($this->requestUrl, 'publicAccessBlock') !== false) { |
| 689 |
$canonicalQuery = "publicAccessBlock="; |
| 690 |
} else if (strpos($this->requestUrl, 'ownershipControls') !== false) { |
| 691 |
$canonicalQuery = "ownershipControls="; |
| 692 |
} else if (strpos($this->requestUrl, 'location') !== false) { |
| 693 |
$canonicalQuery = "location="; |
| 694 |
} |
| 695 |
} |
| 696 |
|
| 697 |
// Build canonical headers - MUST be sorted alphabetically by header name |
| 698 |
$canonicalHeaders = ""; |
| 699 |
|
| 700 |
if ($this->contentMD5) { |
| 701 |
$canonicalHeaders .= "content-md5:{$this->contentMD5}\n"; |
| 702 |
} |
| 703 |
|
| 704 |
$canonicalHeaders .= "host:{$this->getHost()}\n"; |
| 705 |
$canonicalHeaders .= "x-amz-content-sha256:{$this->getContentHash()}\n"; |
| 706 |
$canonicalHeaders .= "x-amz-date:{$this->timeStamp}\n"; |
| 707 |
|
| 708 |
if ($this->sessionToken) { |
| 709 |
$canonicalHeaders .= "x-amz-security-token:{$this->sessionToken}\n"; |
| 710 |
} |
| 711 |
|
| 712 |
// Signed headers - MUST match the order of canonical headers (alphabetically sorted) |
| 713 |
$signedHeaders = ""; |
| 714 |
if ($this->contentMD5) { |
| 715 |
$signedHeaders .= "content-md5;"; |
| 716 |
} |
| 717 |
$signedHeaders .= "host;x-amz-content-sha256;x-amz-date"; |
| 718 |
|
| 719 |
if ($this->sessionToken) { |
| 720 |
$signedHeaders .= ";x-amz-security-token"; |
| 721 |
} |
| 722 |
|
| 723 |
$path = "/"; // Default path |
| 724 |
if ($this->isPathStyle()) { |
| 725 |
$path = "/{$this->bucket}/"; |
| 726 |
} |
| 727 |
|
| 728 |
// Canonical request format per AWS Signature v4: |
| 729 |
// HTTPMethod\n |
| 730 |
// CanonicalURI\n |
| 731 |
// CanonicalQueryString\n |
| 732 |
// CanonicalHeaders\n |
| 733 |
// SignedHeaders\n |
| 734 |
// HashedPayload |
| 735 |
$payload = "$this->httpMethod\n" . |
| 736 |
"{$path}\n" . |
| 737 |
"{$canonicalQuery}\n" . |
| 738 |
"{$canonicalHeaders}\n" . |
| 739 |
"{$signedHeaders}\n" . |
| 740 |
$this->getContentHash(); |
| 741 |
|
| 742 |
return $payload; |
| 743 |
} |
| 744 |
|
| 745 |
private function getHost(): string |
| 746 |
{ |
| 747 |
// Parse host from the request URL to support virtual hosted style buckets |
| 748 |
return parse_url($this->requestUrl, PHP_URL_HOST) ?: "s3.amazonaws.com"; |
| 749 |
} |
| 750 |
|
| 751 |
private function getContentHash(): string |
| 752 |
{ |
| 753 |
return hash($this->hashAlgorithm, $this->payloadBody); |
| 754 |
} |
| 755 |
|
| 756 |
private function getScope(): string |
| 757 |
{ |
| 758 |
return "{$this->date}/{$this->region}/s3/aws4_request"; |
| 759 |
} |
| 760 |
|
| 761 |
private function getSigningKey() |
| 762 |
{ |
| 763 |
$dateKey = hash_hmac($this->hashAlgorithm, $this->date, "AWS4{$this->secretKey}", true); |
| 764 |
$regionKey = hash_hmac($this->hashAlgorithm, $this->region, $dateKey, true); |
| 765 |
$serviceKey = hash_hmac($this->hashAlgorithm, 's3', $regionKey, true); |
| 766 |
return hash_hmac($this->hashAlgorithm, 'aws4_request', $serviceKey, true); |
| 767 |
} |
| 768 |
|
| 769 |
private function getHeaders(): array |
| 770 |
{ |
| 771 |
$headers = [ |
| 772 |
"x-amz-content-sha256" => $this->getContentHash(), |
| 773 |
'x-amz-date' => $this->timeStamp, |
| 774 |
]; |
| 775 |
|
| 776 |
if ($this->contentMD5) { |
| 777 |
$headers['content-md5'] = $this->contentMD5; |
| 778 |
} |
| 779 |
|
| 780 |
if ($this->sessionToken) { |
| 781 |
$headers['x-amz-security-token'] = $this->sessionToken; |
| 782 |
} |
| 783 |
|
| 784 |
$signedHeaders = ""; |
| 785 |
|
| 786 |
if ($this->contentMD5) { |
| 787 |
$signedHeaders .= "content-md5;"; |
| 788 |
} |
| 789 |
|
| 790 |
$signedHeaders .= "host;x-amz-content-sha256;x-amz-date"; |
| 791 |
|
| 792 |
if ($this->sessionToken) { |
| 793 |
$signedHeaders .= ";x-amz-security-token"; |
| 794 |
} |
| 795 |
|
| 796 |
$headers['Authorization'] = "AWS4-HMAC-SHA256 Credential={$this->accessKey}/{$this->date}/{$this->region}/s3/aws4_request, SignedHeaders={$signedHeaders}, Signature={$this->signature}"; |
| 797 |
|
| 798 |
return $headers; |
| 799 |
} |
| 800 |
|
| 801 |
private function isPathStyle() |
| 802 |
{ |
| 803 |
return $this->bucket && strpos($this->bucket, '.') !== false; |
| 804 |
} |
| 805 |
} |
| 806 |
|
