X-Git-Url: http://dolda2000.com/gitweb/?a=blobdiff_plain;f=src%2Fdolda%2Fjsvc%2Futil%2FErrorHandler.java;fp=src%2Fdolda%2Fjsvc%2Futil%2FErrorHandler.java;h=f1149e84e5fa8fbf8a481f48129cda953c542ec0;hb=a7d2eb2686c6e87d97d66051ba577178e5432511;hp=0000000000000000000000000000000000000000;hpb=b606e86e005c98e6b4039bf8e4541ed76273a0da;p=jsvc.git
diff --git a/src/dolda/jsvc/util/ErrorHandler.java b/src/dolda/jsvc/util/ErrorHandler.java
new file mode 100644
index 0000000..f1149e8
--- /dev/null
+++ b/src/dolda/jsvc/util/ErrorHandler.java
@@ -0,0 +1,79 @@
+package dolda.jsvc.util;
+
+import dolda.jsvc.*;
+import java.net.*;
+import java.io.*;
+import java.util.logging.*;
+
+public class ErrorHandler implements Responder {
+ private Responder next;
+ private static Logger logger = Logger.getLogger("jsvc.error");
+
+ public ErrorHandler(Responder next) {
+ this.next = next;
+ }
+
+ protected void log(Request req, Throwable t) {
+ logger.log(Level.SEVERE, "Unhandled error in responder", t);
+ }
+
+ protected void respdebug(Request req, Throwable t) {
+ req.status(500);
+ req.outheaders().put("content-type", "text/plain; charset=utf-8");
+ PrintWriter out;
+ try {
+ out = new PrintWriter(new OutputStreamWriter(req.output(), "UTF-8"));
+ } catch(UnsupportedEncodingException e) {
+ throw(new Error(e));
+ }
+ t.printStackTrace(out);
+ out.flush();
+ }
+
+ protected void resperr(Request req, Throwable t) {
+ req.status(500);
+ req.outheaders().put("content-type", "text/html; charset=us-ascii");
+ PrintWriter out;
+ try {
+ out = new PrintWriter(new OutputStreamWriter(req.output(), "US-ASCII"));
+ } catch(UnsupportedEncodingException e) {
+ throw(new Error(e));
+ }
+ out.println("");
+ out.println("");
+ out.println("");
+ out.println("Internal error");
+ out.println("");
+ out.println("Internal error
");
+ out.println("An error occurred on the server processing your request.");
+ out.println("");
+ out.println("");
+ out.flush();
+ }
+
+ protected boolean debug(Request req, Throwable t) {
+ SocketAddress rem = req.remoteaddr();
+ return((rem instanceof InetSocketAddress) && ((InetSocketAddress)rem).getAddress().isLoopbackAddress());
+ }
+
+ protected void handle(Request req, Throwable t) {
+ log(req, t);
+ if(req instanceof ResettableRequest) {
+ ResettableRequest rr = (ResettableRequest)req;
+ if(rr.canreset())
+ rr.reset();
+ }
+ if(debug(req, t))
+ respdebug(req, t);
+ else
+ resperr(req, t);
+ }
+
+ public void respond(Request req) {
+ try {
+ next.respond(req);
+ } catch(Throwable t) {
+ handle(req, t);
+ }
+ }
+}