use curl

src/LokalSo/Lokal.php

@@ -5,7 +5,6 @@
 
 	use Exception;
 	use JsonSerializable;
-	use GuzzleHttp\Client;
 
 	const LOKAL_SERVER_MIN_VERSION = "v0.6.0";
 	const LOKAL_SO_BANNER = <<<BANNER
@@ -295,33 +294,14 @@ class Lokal
 		 */
 		private string $base_url;
 
-		/**
-		 * @var \GuzzleHttp\Client
-		 */
-		private Client $client;
-
 		public function __construct(string $base_url = "http://127.0.0.1:6174")
 		{
 			$this->base_url = $base_url;
-			$this->client = new Client([
-				'base_uri' => $this->base_url,
-				'headers' => [
-					'User-Agent' => 'Lokal PHP - github.com/lokal-so/lokal-php',
-					'Content-Type' => 'application/json',
-				],
-			]);
 		}
 
 		public function setBaseUrl(string $base_url): Lokal
 		{
 			$this->base_url = $base_url;
-			$this->client = new Client([
-				'base_uri' => $this->base_url,
-				'headers' => [
-					'User-Agent' => 'Lokal PHP - github.com/lokal-so/lokal-php',
-					'Content-Type' => 'application/json',
-				],
-			]);
 			return $this;
 		}
 
@@ -342,29 +322,70 @@ private static function outJson(string $data)
 
 		public function postJson(string $path, string $body): array
 		{
-			$response = $this->client->post($path, ['body' => $body]);
-			$this->checkHeaders($response->getHeaders());
-
-			return self::outJson($response->getBody()->getContents());
+			$hdr = ["Content-Type: application/json"];
+			$opt = [CURLOPT_POSTFIELDS => $body];
+			return self::outJson($this->curl("POST", $path, $opt, $hdr));
 		}
 
 		public function getJson(string $path): array
 		{
-			$response = $this->client->get($path);
-			$this->checkHeaders($response->getHeaders());
+			return self::outJson($this->curl("GET", $path));
+		}
+
+		private static function curlHeaderCheck(string $hdr): void
+		{
+			if (strpos($hdr, ":") === false)
+				return;
+
+			list($key, $val) = explode(":", $hdr, 2);
 
-			return self::outJson($response->getBody()->getContents());
+			$key = strtolower(trim($key));
+			$val = trim($val);
+
+			if ($key !== "lokal-server-version")
+				return;
+
+			if (version_compare($val, substr(LOKAL_SERVER_MIN_VERSION, 1), "<")) {
+				$err = sprintf("Outdated software version, server version: %s, server version required (minimal): %s", $val, LOKAL_SERVER_MIN_VERSION);
+				throw new Exception($err);
+			}
 		}
 
-		private function checkHeaders(array $headers): void
+		public function curl(string $method, string $path, array $opt = [], array $hdr = []): string
 		{
-			if (isset($headers['lokal-server-version'])) {
-				$serverVersion = $headers['lokal-server-version'][0];
-				if (version_compare($serverVersion, substr(LOKAL_SERVER_MIN_VERSION, 1), "<")) {
-					$err = sprintf("Outdated software version, server version: %s, server version required (minimal): %s", $serverVersion, LOKAL_SERVER_MIN_VERSION);
-					throw new Exception($err);
+			$hdr_chk_func = function ($ch, $hdr) {
+				self::curlHeaderCheck($hdr);
+				return strlen($hdr);
+			};
+
+			$ch = curl_init();
+			$default_opts = [
+				CURLOPT_URL => $this->base_url . $path,
+				CURLOPT_RETURNTRANSFER => true,
+				CURLOPT_HEADER => false,
+				CURLOPT_USERAGENT => "Lokal PHP - github.com/lokal-so/lokal-php",
+				CURLOPT_HTTPHEADER => $hdr,
+				CURLOPT_CUSTOMREQUEST => $method,
+				CURLOPT_HEADERFUNCTION => $hdr_chk_func
+			];
+
+			foreach ($opt as $key => $value)
+				$default_opts[$key] = $value;
+
+			curl_setopt_array($ch, $default_opts);
+			$res = curl_exec($ch);
+			$err = curl_error($ch);
+			$ern = curl_errno($ch);
+			curl_close($ch);
+
+			if ($ern !== 0) {
+				if (str_contains($err, "Couldn't connect to server")) {
+					throw new Exception("Curl error ({$ern}): {$err} - You may need to install Lokal Client at Lokal.so/download");
 				}
+				throw new Exception("Curl error ({$ern}): {$err}");
 			}
+
+			return $res;
 		}
 	};
 } /* namespace LokalSo */