Push to v3 Branch

src/BunnyCDNAdapter.php

@@ -2,6 +2,7 @@
 
 namespace PlatformCommunity\Flysystem\BunnyCDN;
 
+use DateTimeInterface;
 use Exception;
 use GuzzleHttp\Exception\RequestException;
 use GuzzleHttp\Pool;
@@ -20,25 +21,30 @@
 use League\Flysystem\UnableToCreateDirectory;
 use League\Flysystem\UnableToDeleteDirectory;
 use League\Flysystem\UnableToDeleteFile;
+use League\Flysystem\UnableToGenerateTemporaryUrl;
 use League\Flysystem\UnableToMoveFile;
 use League\Flysystem\UnableToProvideChecksum;
 use League\Flysystem\UnableToReadFile;
 use League\Flysystem\UnableToRetrieveMetadata;
 use League\Flysystem\UnableToSetVisibility;
 use League\Flysystem\UnableToWriteFile;
 use League\Flysystem\UrlGeneration\PublicUrlGenerator;
+use League\Flysystem\UrlGeneration\TemporaryUrlGenerator;
 use League\Flysystem\Visibility;
 use League\MimeTypeDetection\FinfoMimeTypeDetector;
 use PlatformCommunity\Flysystem\BunnyCDN\Exceptions\NotFoundException;
 use RuntimeException;
 use TypeError;
 
-class BunnyCDNAdapter implements FilesystemAdapter, PublicUrlGenerator, ChecksumProvider
+class BunnyCDNAdapter implements FilesystemAdapter, PublicUrlGenerator, ChecksumProvider, TemporaryUrlGenerator
 {
     use CalculateChecksumFromStream;
 
-    public function __construct(private BunnyCDNClient $client, private string $pullzone_url = '')
-    {
+    public function __construct(
+        private BunnyCDNClient $client,
+        private string $pullzone_url = '',
+        private string $token_auth_key = ''
+    ) {
         if (\func_num_args() > 2 && (string) \func_get_arg(2) !== '') {
             throw new \RuntimeException('PrefixPath is no longer supported directly. Use PathPrefixedAdapter instead: https://flysystem.thephpleague.com/docs/adapter/path-prefixing/');
         }
@@ -554,6 +560,47 @@ public function publicUrl(string $path, Config $config): string
         return rtrim($this->pullzone_url, '/').'/'.ltrim($path, '/');
     }
 
+    public function temporaryUrl(string $path, DateTimeInterface $expiresAt, Config $config): string
+    {
+        if ($this->token_auth_key === '') {
+            throw new UnableToGenerateTemporaryUrl('In order to generate temporary URLs for a BunnyCDN object, you must pass the "token_auth_key" parameter to the BunnyCDNAdapter.', $path);
+        }
+
+        // convert our expiration to a unix timestamp
+        $expiration = $expiresAt->getTimestamp();
+
+        // extract elements from our path
+        $parts = parse_url($path);
+        $path = $parts['path'];
+
+        // extract our query params
+        parse_str($parts['query'] ?? '', $params);
+        ksort($params);
+
+        // concatenate all of our data
+        return $path
+            .(str_contains($path, '?') ? '&' : '?')
+            .'token='.$this->buildSigningKey($path, $expiration, $params)
+            .'&expires='.$expiration
+            .($params ? '&'.http_build_query($params) : null);
+    }
+
+    private function buildSigningKey($path, int $expiration, array $params): string
+    {
+        // prefix our path
+        $path = str_starts_with($path, '/') ? $path : '/'.$path;
+
+        // process our query params
+        $query = implode('&', array_map(fn ($k, $v) => $k.'='.$v, array_keys($params), $params));
+
+        // now generate and hash our payload
+        $payload = $this->token_auth_key.$path.(string) $expiration.$query;
+        $hash = hash('sha256', $payload, true);
+
+        // sanitise and base64 encode it
+        return str_replace(['+', '/', '='], ['-', '_', ''], base64_encode($hash));
+    }
+
     private static function parse_bunny_timestamp(string $timestamp): int
     {
         return (date_create_from_format('Y-m-d\TH:i:s.u', $timestamp) ?: date_create_from_format('Y-m-d\TH:i:s', $timestamp))->getTimestamp();

tests/FlysystemAdapterTest.php

@@ -13,6 +13,7 @@
 use League\Flysystem\FilesystemException;
 use League\Flysystem\UnableToCopyFile;
 use League\Flysystem\UnableToDeleteFile;
+use League\Flysystem\UnableToGenerateTemporaryUrl;
 use League\Flysystem\UnableToMoveFile;
 use League\Flysystem\UnableToProvideChecksum;
 use League\Flysystem\UnableToRetrieveMetadata;
@@ -104,7 +105,21 @@ public function setting_visibility(): void
 
     public function generating_a_temporary_url(): void
     {
-        $this->markTestSkipped('No temporary URL support is provided for BunnyCDN');
+        $adapter = new BunnyCDNAdapter(self::bunnyCDNClient(), '', 'test-key');
+
+        $expiresAt = new \DateTimeImmutable('+1 hour');
+        $url = $adapter->temporaryUrl('path.txt', $expiresAt, new Config());
+
+        $this->assertStringContainsString('path.txt?token=', $url);
+        $this->assertStringContainsString('&expires=', $url);
+    }
+
+    public function test_temporary_url_throws_exception_if_not_configured(): void
+    {
+        $this->expectException(UnableToGenerateTemporaryUrl::class);
+        $this->expectExceptionMessage('In order to generate temporary URLs for a BunnyCDN object, you must pass the "token_auth_key" parameter to the BunnyCDNAdapter.');
+
+        $this->adapter()->temporaryUrl('path.txt', new \DateTimeImmutable('+1 hour'), new Config());
     }
 
     /**

tests/PrefixTest.php

@@ -67,7 +67,14 @@ public function setting_visibility(): void
 
     public function generating_a_temporary_url(): void
     {
-        $this->markTestSkipped('No temporary URL support is provided for BunnyCDN');
+        $adapter = new BunnyCDNAdapter(self::bunnyCDNClient(), '', 'test-key');
+        $prefixAdapter = new PathPrefixedAdapter($adapter, self::PREFIX_PATH);
+
+        $expiresAt = new \DateTimeImmutable('+1 hour');
+        $url = $prefixAdapter->temporaryUrl('path.txt', $expiresAt, new Config());
+
+        $this->assertStringContainsString(self::PREFIX_PATH.'/path.txt?token=', $url);
+        $this->assertStringContainsString('&expires=', $url);
     }
 
     /**