| 1 |
<?php |
| 2 |
|
| 3 |
namespace FluentBooking\Framework\Http; |
| 4 |
|
| 5 |
use InvalidArgumentException; |
| 6 |
use FluentBooking\Framework\Foundation\App; |
| 7 |
use FluentBooking\Framework\Support\DateTime; |
| 8 |
|
| 9 |
class UrlGenerator |
| 10 |
{ |
| 11 |
/** |
| 12 |
* The application instance. |
| 13 |
* |
| 14 |
* @var \FluentBooking\Framework\Foundation\App|null |
| 15 |
*/ |
| 16 |
protected $app = null; |
| 17 |
|
| 18 |
|
| 19 |
/** |
| 20 |
* The encrypter instance. |
| 21 |
* @var \FluentBooking\Framework\Encryption\Encrypter|null |
| 22 |
*/ |
| 23 |
protected $encrypter = null; |
| 24 |
|
| 25 |
/** |
| 26 |
* Create a new URL Generator instance. |
| 27 |
* |
| 28 |
* @param \FluentBooking\Framework\Foundation\App|null $app |
| 29 |
* @param \FluentBooking\Framework\Encryption\Encrypter|null $encrypter |
| 30 |
*/ |
| 31 |
public function __construct($app = null, $encrypter = null) |
| 32 |
{ |
| 33 |
$this->app = $app ?: App::getInstance(); |
| 34 |
$this->encrypter = $encrypter; |
| 35 |
} |
| 36 |
|
| 37 |
/** |
| 38 |
* Sign a URL |
| 39 |
* |
| 40 |
* @param string $url |
| 41 |
* @param array $params |
| 42 |
* @return string |
| 43 |
*/ |
| 44 |
public function sign($url, $params = []) |
| 45 |
{ |
| 46 |
$encrypter = $this->resolveEncrypter(); |
| 47 |
|
| 48 |
$url = $this->normalizeUrl($url); |
| 49 |
|
| 50 |
[$baseUrl, $query] = $this->extractUrlParts($url); |
| 51 |
|
| 52 |
$params = $this->validateExpiryTime(array_merge($query, $params)); |
| 53 |
|
| 54 |
$payload = $encrypter->encrypt(http_build_query($params)); |
| 55 |
|
| 56 |
$signature = hash_hmac('sha256', $payload, $encrypter->getKey()); |
| 57 |
|
| 58 |
// URL-encode via http_build_query so payload/signature stay safe |
| 59 |
// even if their alphabet ever includes '+', '/', or '='. Old-style |
| 60 |
// URLs (raw values) keep verifying because parse_str on the verify |
| 61 |
// side decodes both forms identically. |
| 62 |
return $baseUrl . '?' . http_build_query([ |
| 63 |
'_data' => $payload, |
| 64 |
'_signature' => $signature, |
| 65 |
]); |
| 66 |
} |
| 67 |
|
| 68 |
/** |
| 69 |
* Normalize URL — handle relative routes, slugs, and REST routes. |
| 70 |
* |
| 71 |
* @param string $url |
| 72 |
* @return string |
| 73 |
*/ |
| 74 |
protected function normalizeUrl($url) |
| 75 |
{ |
| 76 |
if (preg_match('#^(http|https)://#', $url)) { |
| 77 |
return $url; |
| 78 |
} |
| 79 |
|
| 80 |
$config = App::config(); |
| 81 |
$slug = trim($config->get('app.slug'), '/'); |
| 82 |
$version = trim($config->get('app.rest_version'), '/'); |
| 83 |
$relative = ltrim($url, '/'); |
| 84 |
|
| 85 |
$base = rest_url(); |
| 86 |
|
| 87 |
if (str_contains($base, 'index.php?rest_route=')) { |
| 88 |
$base = site_url('/wp-json/'); |
| 89 |
} |
| 90 |
|
| 91 |
return rtrim($base, '/') . '/' . $slug . '/' . $version . '/' . $relative; |
| 92 |
} |
| 93 |
|
| 94 |
/** |
| 95 |
* Extract base URL and query array from a full URL. |
| 96 |
* |
| 97 |
* @param string $url |
| 98 |
* @return array |
| 99 |
*/ |
| 100 |
protected function extractUrlParts($url) |
| 101 |
{ |
| 102 |
$parts = parse_url($url); |
| 103 |
|
| 104 |
$base = $parts['scheme'] . '://' . $parts['host'] . ($parts['path'] ?? ''); |
| 105 |
parse_str($parts['query'] ?? '', $query); |
| 106 |
|
| 107 |
return [$base, $query]; |
| 108 |
} |
| 109 |
|
| 110 |
/** |
| 111 |
* Normalize the expiry time. |
| 112 |
* |
| 113 |
* @param array $params |
| 114 |
* @return array |
| 115 |
* @throws InvalidArgumentException |
| 116 |
* |
| 117 |
* @phpstan-ignore-next-line |
| 118 |
*/ |
| 119 |
public function validateExpiryTime(array $params): array |
| 120 |
{ |
| 121 |
if (!isset($params['expires_at'])) { |
| 122 |
return $params; // Nothing to validate |
| 123 |
} |
| 124 |
|
| 125 |
$expiresAt = $params['expires_at']; |
| 126 |
|
| 127 |
// Convert string date/time to timestamp |
| 128 |
if (is_string($expiresAt)) { |
| 129 |
$expiresAt = strtotime($expiresAt); |
| 130 |
if ($expiresAt === false) { |
| 131 |
throw new InvalidArgumentException( |
| 132 |
'The expiry time string is invalid.' |
| 133 |
); |
| 134 |
} |
| 135 |
|
| 136 |
// Convert DateTime object to timestamp |
| 137 |
} elseif ($expiresAt instanceof DateTime) { |
| 138 |
$expiresAt = $expiresAt->getTimestamp(); |
| 139 |
|
| 140 |
// Numeric values are treated as absolute timestamps |
| 141 |
} elseif (is_numeric($expiresAt)) { |
| 142 |
$expiresAt = (int) $expiresAt; |
| 143 |
|
| 144 |
// Anything else is invalid |
| 145 |
} else { |
| 146 |
throw new InvalidArgumentException( |
| 147 |
'The expiry time must be a string, DateTime, or numeric timestamp.' |
| 148 |
); |
| 149 |
} |
| 150 |
|
| 151 |
// Check if the expiry time is in the past |
| 152 |
if ($expiresAt <= time()) { |
| 153 |
throw new InvalidArgumentException('The expiry time has already passed.'); |
| 154 |
} |
| 155 |
|
| 156 |
$params['expires_at'] = $expiresAt; |
| 157 |
|
| 158 |
return $params; |
| 159 |
} |
| 160 |
|
| 161 |
/** |
| 162 |
* Validate a URL |
| 163 |
* |
| 164 |
* @param string $url |
| 165 |
* @return mixed (false or array) |
| 166 |
*/ |
| 167 |
public function validate($url) |
| 168 |
{ |
| 169 |
if (!$query = $this->parseUrlAndGetQuery($url)) { |
| 170 |
return false; |
| 171 |
} |
| 172 |
|
| 173 |
if (!isset($query['_data']) || !isset($query['_signature'])) { |
| 174 |
return false; |
| 175 |
} |
| 176 |
|
| 177 |
return $this->verifySignature($query['_data'], $query['_signature']); |
| 178 |
} |
| 179 |
|
| 180 |
/** |
| 181 |
* Parse query string from the url. |
| 182 |
* |
| 183 |
* @param string $url |
| 184 |
* @return mixed (bool or array) |
| 185 |
*/ |
| 186 |
public function parseUrlAndGetQuery($url) |
| 187 |
{ |
| 188 |
$parts = parse_url($url); |
| 189 |
|
| 190 |
if (!isset($parts['query'])) { |
| 191 |
return false; |
| 192 |
} |
| 193 |
|
| 194 |
parse_str($parts['query'], $query); |
| 195 |
|
| 196 |
return $query; |
| 197 |
} |
| 198 |
|
| 199 |
/** |
| 200 |
* Verify the signature. |
| 201 |
* |
| 202 |
* @param array $data |
| 203 |
* @param string $signature |
| 204 |
* @return mixed (bool or array) |
| 205 |
*/ |
| 206 |
public function verifySignature($data, $signature) |
| 207 |
{ |
| 208 |
$encrypter = $this->resolveEncrypter(); |
| 209 |
|
| 210 |
$expected = hash_hmac('sha256', $data, $encrypter->getKey()); |
| 211 |
|
| 212 |
if (!hash_equals($expected, $signature)) return false; |
| 213 |
|
| 214 |
parse_str($encrypter->decrypt($data), $params); |
| 215 |
|
| 216 |
$expiresAt = $params['expires_at'] ?? null; |
| 217 |
|
| 218 |
if (is_numeric($expiresAt) && time() > (int) $expiresAt) { |
| 219 |
return false; |
| 220 |
} |
| 221 |
|
| 222 |
return empty($params) ? true : $params; |
| 223 |
} |
| 224 |
|
| 225 |
/** |
| 226 |
* Generate a full REST URL from a named route. |
| 227 |
* |
| 228 |
* @param string $nameOrPath The name of the route or path. |
| 229 |
* @param array $params Optional parameters to fill in the placeholders. |
| 230 |
* @param array $query Optional query parameters to append to the URL. |
| 231 |
* @return string|null The full REST URL or null if the route doesn't exist. |
| 232 |
*/ |
| 233 |
public function route($nameOrPath, $params = [], $query = []) |
| 234 |
{ |
| 235 |
// @phpstan-ignore-next-line |
| 236 |
$route = $this->app->router->getByName($nameOrPath); |
| 237 |
|
| 238 |
if (!$route) { |
| 239 |
if (!str_contains($nameOrPath, '/')) { |
| 240 |
return; |
| 241 |
} |
| 242 |
$path = '/' . trim($nameOrPath, '/'); |
| 243 |
} else { |
| 244 |
$path = $this->buildPath($route->uri(), $params); |
| 245 |
} |
| 246 |
|
| 247 |
$fullUrl = $this->buildFullUrl($path); |
| 248 |
|
| 249 |
return $this->appendQueryString($fullUrl, $query); |
| 250 |
} |
| 251 |
|
| 252 |
/** |
| 253 |
* Resolve the encrypter. |
| 254 |
* |
| 255 |
* @return \FluentBooking\Framework\Encryption\Encrypter |
| 256 |
*/ |
| 257 |
protected function resolveEncrypter() |
| 258 |
{ |
| 259 |
if (!$this->encrypter) { |
| 260 |
$this->encrypter = App::make('encrypter'); |
| 261 |
} |
| 262 |
|
| 263 |
return $this->encrypter; |
| 264 |
} |
| 265 |
|
| 266 |
/** |
| 267 |
* Build the full URL including base REST path, |
| 268 |
* namespace, version, and route path. |
| 269 |
* |
| 270 |
* @param string $path |
| 271 |
* @return string |
| 272 |
*/ |
| 273 |
protected function buildFullUrl($path) |
| 274 |
{ |
| 275 |
$restUrl = $this->buildRestBaseUrl(); |
| 276 |
|
| 277 |
$namespaceSegment = $this->buildNamespaceSegment(); |
| 278 |
|
| 279 |
return $restUrl . $namespaceSegment . $path; |
| 280 |
} |
| 281 |
|
| 282 |
/** |
| 283 |
* Get the base REST URL (e.g., https://wpfluent.org/wp-json). |
| 284 |
* |
| 285 |
* @return string |
| 286 |
*/ |
| 287 |
protected function buildRestBaseUrl() |
| 288 |
{ |
| 289 |
return rtrim(site_url('/wp-json'), '/'); |
| 290 |
} |
| 291 |
|
| 292 |
/** |
| 293 |
* Build the namespace and version segment of the REST URL. |
| 294 |
* |
| 295 |
* @return string |
| 296 |
*/ |
| 297 |
protected function buildNamespaceSegment() |
| 298 |
{ |
| 299 |
// @phpstan-ignore-next-line |
| 300 |
$ns = trim($this->app->config->get('app.rest_namespace'), '/'); |
| 301 |
|
| 302 |
// @phpstan-ignore-next-line |
| 303 |
$ver = trim($this->app->config->get('app.rest_version'), '/'); |
| 304 |
|
| 305 |
return "/{$ns}/{$ver}"; |
| 306 |
} |
| 307 |
|
| 308 |
/** |
| 309 |
* Replace route placeholders in the URI with the provided parameters. |
| 310 |
* |
| 311 |
* @param string $template |
| 312 |
* @param array $params |
| 313 |
* @return string |
| 314 |
*/ |
| 315 |
protected function buildPath($template, &$params) |
| 316 |
{ |
| 317 |
$replaced = preg_replace_callback( |
| 318 |
'/\{([^}]+)\??\}/', |
| 319 |
function ($m) use (&$params) { |
| 320 |
$key = rtrim($m[1], '?'); |
| 321 |
return isset($params[$key]) ? $params[$key] : ''; |
| 322 |
}, |
| 323 |
$template |
| 324 |
); |
| 325 |
|
| 326 |
return '/' . trim($replaced, '/'); |
| 327 |
} |
| 328 |
|
| 329 |
/** |
| 330 |
* Append query parameters to a URL. |
| 331 |
* |
| 332 |
* @param string $url |
| 333 |
* @param array $query |
| 334 |
* @return string |
| 335 |
*/ |
| 336 |
protected function appendQueryString($url, $query) |
| 337 |
{ |
| 338 |
if (empty($query)) { |
| 339 |
return $url; |
| 340 |
} |
| 341 |
|
| 342 |
return $url . '?' . http_build_query($query); |
| 343 |
} |
| 344 |
} |
| 345 |
|
