better upload error handling

Dockerfile

@@ -1,11 +1,11 @@
 FROM php:7.1-fpm-alpine
 
-RUN apk add --no-cache postgresql-dev wget autoconf g++ libc-dev make \
+RUN apk add --no-cache postgresql-dev wget autoconf g++ libc-dev make pcre-dev \
     && mkdir -p /app/src \
     && docker-php-ext-install pdo_pgsql \
     && pecl install apcu \
     && docker-php-ext-enable apcu \
-    && apk del autoconf g++ libc-dev make
+    && apk del autoconf g++ libc-dev make pcre-dev
 
 COPY composer.json /app
 COPY src /app/src

src/Controllers/UploadController.php

@@ -18,6 +18,13 @@ class UploadController extends BaseController {
 		$demo = $this->file('demo');
 		$demoFile = $demo['tmp_name'];
 
-		echo $this->uploadProvider->upload($key, $red, $blu, $name, $demoFile);
+		try {
+			echo $this->uploadProvider->upload($key, $red, $blu, $name, $demoFile);
+		} catch (\Exception $e) {
+			\Flight::response()
+				->status(500)
+				->write($e->getMessage())
+				->send();
+		}
 	}
 }

src/Demo/RawParser.php

@@ -3,6 +3,7 @@
 namespace Demostf\API\Demo;
 
 use GuzzleHttp\Client;
+use GuzzleHttp\Exception\GuzzleException;
 
 /**
  * Wrapper around demo.js parser
@@ -18,10 +19,22 @@ class RawParser {
 	}
 
 	public function parse(string $path): ?array {
-		$client = new Client();
-		$response = $client->post($this->parserUrl, [
-			'body' => fopen($path, 'r')
-		]);
-		return json_decode($response->getBody()->getContents(), true);
+		try {
+			$client = new Client();
+			$response = $client->post($this->parserUrl, [
+				'body' => fopen($path, 'r')
+			]);
+			$result = json_decode($response->getBody()->getContents(), true);
+			if (is_null($result)) {
+				throw new \Exception('Failed to parse demo, unexpected result from parser');
+			} else {
+				return $result;
+			}
+		} catch (GuzzleException $e) {
+			if (strpos($e->getMessage(), 'cURL error 52') !== false) {
+				throw new \Exception('Failed to parse demo, can\'t reach demo parser');
+			}
+			throw new \Exception('Failed to parse demo, ' . $e->getMessage());
+		}
 	}
 }