X-Git-Url: https://git.pterodactylus.net/?a=blobdiff_plain;f=src%2Fmain%2Fjava%2Fnet%2Fpterodactylus%2Fsone%2Fweb%2Fajax%2FJsonPage.java;h=dbee28ba773b3fb3b3fc15ef3021a2036d826d65;hb=99888ce13cc17d49f5e217ab6f2c9ad5ef168792;hp=1e5e8ed8e1fd26125508c69e006eff7684a40c95;hpb=0df5e91852f737d760c5a9f54c5667309fbadcc2;p=Sone.git

diff --git a/src/main/java/net/pterodactylus/sone/web/ajax/JsonPage.java b/src/main/java/net/pterodactylus/sone/web/ajax/JsonPage.java
index 1e5e8ed..dbee28b 100644
--- a/src/main/java/net/pterodactylus/sone/web/ajax/JsonPage.java
+++ b/src/main/java/net/pterodactylus/sone/web/ajax/JsonPage.java
@@ -1,5 +1,5 @@
 /*
- * Sone - JsonPage.java - Copyright © 2010 David Roden
+ * Sone - JsonPage.java - Copyright © 2010–2013 David Roden
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
@@ -17,11 +17,17 @@
 
 package net.pterodactylus.sone.web.ajax;
 
+import java.io.ByteArrayOutputStream;
 import java.io.IOException;
+import java.io.OutputStreamWriter;
+import java.io.PrintWriter;
+import java.net.URI;
 
 import net.pterodactylus.sone.data.Sone;
 import net.pterodactylus.sone.web.WebInterface;
+import net.pterodactylus.sone.web.page.FreenetPage;
 import net.pterodactylus.sone.web.page.FreenetRequest;
+import net.pterodactylus.util.io.Closer;
 import net.pterodactylus.util.json.JsonObject;
 import net.pterodactylus.util.json.JsonUtils;
 import net.pterodactylus.util.web.Page;
@@ -35,7 +41,7 @@ import freenet.clients.http.ToadletContext;
  *
  * @author <a href="mailto:bombe@pterodactylus.net">David ‘Bombe’ Roden</a>
  */
-public abstract class JsonPage implements Page<FreenetRequest> {
+public abstract class JsonPage implements FreenetPage {
 
 	/** The path of the page. */
 	private final String path;
@@ -137,6 +143,7 @@ public abstract class JsonPage implements Page<FreenetRequest> {
 	 * @return {@code true} if the form password (given as “formPassword”) is
 	 *         required, {@code false} otherwise
 	 */
+	@SuppressWarnings("static-method")
 	protected boolean needsFormPassword() {
 		return true;
 	}
@@ -147,6 +154,7 @@ public abstract class JsonPage implements Page<FreenetRequest> {
 	 * @return {@code true} if the user needs to be logged in to use this page,
 	 *         {@code false} otherwise
 	 */
+	@SuppressWarnings("static-method")
 	protected boolean requiresLogin() {
 		return true;
 	}
@@ -160,7 +168,7 @@ public abstract class JsonPage implements Page<FreenetRequest> {
 	 *
 	 * @return A reply signaling success
 	 */
-	protected JsonObject createSuccessJsonObject() {
+	protected static JsonObject createSuccessJsonObject() {
 		return new JsonObject().put("success", true);
 	}
 
@@ -171,7 +179,7 @@ public abstract class JsonPage implements Page<FreenetRequest> {
 	 *            The error that has occured
 	 * @return The JSON object, signalling failure and the error code
 	 */
-	protected JsonObject createErrorJsonObject(String error) {
+	protected static JsonObject createErrorJsonObject(String error) {
 		return new JsonObject().put("success", false).put("error", error);
 	}
 
@@ -214,8 +222,52 @@ public abstract class JsonPage implements Page<FreenetRequest> {
 				return response.setStatusCode(403).setStatusText("Forbidden").setContentType("application/json").write(JsonUtils.format(new JsonObject().put("success", false).put("error", "auth-required")));
 			}
 		}
-		JsonObject jsonObject = createJsonObject(request);
-		return response.setStatusCode(200).setStatusText("OK").setContentType("application/json").write(JsonUtils.format(jsonObject));
+		try {
+			JsonObject jsonObject = createJsonObject(request);
+			return response.setStatusCode(200).setStatusText("OK").setContentType("application/json").write(JsonUtils.format(jsonObject));
+		} catch (Exception e1) {
+			return response.setStatusCode(500).setStatusText(e1.getMessage()).setContentType("text/plain").write(dumpStackTrace(e1));
+		}
+	}
+
+	/**
+	 * {@inheritDoc}
+	 */
+	@Override
+	public boolean isLinkExcepted(URI link) {
+		return false;
+	}
+
+	//
+	// PRIVATE METHODS
+	//
+
+	/**
+	 * Returns a byte array containing the stack trace of the given throwable.
+	 *
+	 * @param t
+	 *            The throwable whose stack trace to dump into an array
+	 * @return The array with the stack trace, or an empty array if the stack
+	 *         trace could not be dumped
+	 */
+	private static byte[] dumpStackTrace(Throwable t) {
+		ByteArrayOutputStream byteArrayOutputStream = new ByteArrayOutputStream();
+		OutputStreamWriter writer = null;
+		PrintWriter printWriter = null;
+		try {
+			writer = new OutputStreamWriter(byteArrayOutputStream, "uTF-8");
+			printWriter = new PrintWriter(writer);
+			t.printStackTrace(printWriter);
+			byteArrayOutputStream.flush();
+			return byteArrayOutputStream.toByteArray();
+		} catch (IOException ioe1) {
+			/* quite not possible. */
+			return new byte[0];
+		} finally {
+			Closer.close(printWriter);
+			Closer.close(writer);
+			Closer.close(byteArrayOutputStream);
+		}
 	}
 
 }