Added default constructors and base classes for errors

Author: LatvianModder

src/main/java/dev/latvian/apps/tinyserver/http/HTTPRequest.java

@@ -6,6 +6,7 @@
 import dev.latvian.apps.tinyserver.error.InvalidPathException;
 import dev.latvian.apps.tinyserver.http.response.HTTPPayload;
 import dev.latvian.apps.tinyserver.http.response.HTTPResponse;
+import dev.latvian.apps.tinyserver.http.response.error.client.LengthRequiredError;
 import org.jetbrains.annotations.ApiStatus;
 import org.jetbrains.annotations.Nullable;
 
@@ -147,7 +148,7 @@ public ByteBuffer bodyBuffer() throws IOException {
 			var h = header("Content-Length");
 
 			if (h.isEmpty()) {
-				throw new IOException("Content-Length header not found, chunked encoding not supported");
+				throw new LengthRequiredError();
 			}
 
 			int len = Integer.parseInt(h);

src/main/java/dev/latvian/apps/tinyserver/http/response/HTTPPayload.java

@@ -208,7 +208,7 @@ public void process(HTTPRequest req, int keepAliveTimeout, int maxKeepAliveConne
 		}
 	}
 
-	public void write(HTTPConnection connection, boolean writeBody) throws IOException {
+	public void write(HTTPConnection<?> connection, boolean writeBody) throws IOException {
 		connection.write(status.responseBuffer().duplicate());
 
 		int size = 2;

src/main/java/dev/latvian/apps/tinyserver/http/response/error/BadRequestError.java

@@ -2,24 +2,26 @@
 
 import dev.latvian.apps.tinyserver.http.response.HTTPStatus;
 
-public class HTTPError extends RuntimeException {
-	private final HTTPStatus status;
+public abstract class HTTPError extends RuntimeException {
 	private Object extraData;
 
-	public HTTPError(HTTPStatus status, String message) {
+	public HTTPError() {
+	}
+
+	public HTTPError(String message) {
 		super(message);
-		this.status = status;
 	}
 
-	public HTTPError(HTTPStatus status, String message, Throwable cause) {
+	public HTTPError(String message, Throwable cause) {
 		super(message, cause);
-		this.status = status;
 	}
 
-	public HTTPStatus getStatus() {
-		return status;
+	public HTTPError(Throwable cause) {
+		super(cause);
 	}
 
+	public abstract HTTPStatus getStatus();
+
 	public Object getExtraData() {
 		return extraData;
 	}

src/main/java/dev/latvian/apps/tinyserver/http/response/error/ForbiddenError.java

@@ -0,0 +1,25 @@
+package dev.latvian.apps.tinyserver.http.response.error.client;
+
+import dev.latvian.apps.tinyserver.http.response.HTTPStatus;
+
+public class BadRequestError extends ClientError {
+	public BadRequestError() {
+	}
+
+	public BadRequestError(String message) {
+		super(message);
+	}
+
+	public BadRequestError(String message, Throwable cause) {
+		super(message, cause);
+	}
+
+	public BadRequestError(Throwable cause) {
+		super(cause);
+	}
+
+	@Override
+	public HTTPStatus getStatus() {
+		return HTTPStatus.BAD_REQUEST;
+	}
+}