Fixed %-codes in URL

Author: LatvianModder

src/main/java/dev/latvian/apps/tinyserver/HTTPServer.java

@@ -1,6 +1,7 @@
 package dev.latvian.apps.tinyserver;
 
 import dev.latvian.apps.tinyserver.error.BindFailedException;
+import dev.latvian.apps.tinyserver.error.InvalidPathException;
 import dev.latvian.apps.tinyserver.http.HTTPHandler;
 import dev.latvian.apps.tinyserver.http.HTTPMethod;
 import dev.latvian.apps.tinyserver.http.HTTPPathHandler;
@@ -251,6 +252,16 @@ private void handleClient(Socket socket) {
 					} else {
 						var pathParts = path.split("/");
 
+						for (int i = 0; i < pathParts.length; i++) {
+							try {
+								if (pathParts[i].indexOf('%') != -1) {
+									pathParts[i] = URLDecoder.decode(pathParts[i], StandardCharsets.UTF_8);
+								}
+							} catch (Exception ex) {
+								throw new InvalidPathException(ex.getMessage());
+							}
+						}
+
 						for (var handler : handlers.entrySet()) {
 							if (handler.getValue().staticHandlers().containsKey(path)) {
 								allowed.add(handler.getKey());
@@ -293,6 +304,17 @@ private void handleClient(Socket socket) {
 
 						if (hl != null) {
 							var pathParts = path.split("/");
+
+							for (int i = 0; i < pathParts.length; i++) {
+								try {
+									if (pathParts[i].indexOf('%') != -1) {
+										pathParts[i] = URLDecoder.decode(pathParts[i], StandardCharsets.UTF_8);
+									}
+								} catch (Exception ex) {
+									throw new InvalidPathException(ex.getMessage());
+								}
+							}
+
 							var h = hl.staticHandlers().get(path);
 
 							if (h != null) {

src/main/java/dev/latvian/apps/tinyserver/error/InvalidPathException.java

@@ -0,0 +1,7 @@
+package dev.latvian.apps.tinyserver.error;
+
+public class InvalidPathException extends RuntimeException {
+	public InvalidPathException(String path) {
+		super("Invalid path: " + path);
+	}
+}

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

@@ -2,6 +2,7 @@
 
 import dev.latvian.apps.tinyserver.CompiledPath;
 import dev.latvian.apps.tinyserver.HTTPServer;
+import dev.latvian.apps.tinyserver.error.InvalidPathException;
 
 import java.io.IOException;
 import java.io.InputStream;
@@ -47,6 +48,16 @@ public Map<String, String> variables() {
 		return variables;
 	}
 
+	public String variable(String name) {
+		var s = variables.get(name);
+
+		if (s == null || s.isEmpty()) {
+			throw new InvalidPathException("Variable " + name + " not found");
+		}
+
+		return s;
+	}
+
 	public Map<String, String> query() {
 		return query;
 	}

src/test/java/dev/latvian/apps/tinyserver/test/TinyServerTest.java

@@ -41,11 +41,11 @@ private static HTTPResponse test(HTTPRequest req) {
 	}
 
 	private static HTTPResponse variable(HTTPRequest req) {
-		return HTTPResponse.ok().text("Test: " + req.variables().get("test")).header("X-ABC", "Def");
+		return HTTPResponse.ok().text("Test: " + req.variable("test")).header("X-ABC", "Def");
 	}
 
 	private static HTTPResponse varpath(HTTPRequest req) {
-		return HTTPResponse.ok().text("Test: " + req.variables().get("test"));
+		return HTTPResponse.ok().text("Test: " + req.variable("test"));
 	}
 
 	private static HTTPResponse console(HTTPRequest req) throws IOException {