Dolda2000 GitWeb / jsvc.git / blame
| Commit | Line | Data |
|---|---|---|
| a7d2eb26 FT |
1 | package dolda.jsvc.util; |
| 2 | ||
| 3 | import dolda.jsvc.*; | |
| 4 | import java.net.*; | |
| 5 | import java.io.*; | |
| 6 | import java.util.logging.*; | |
| 7 | ||
| 8 | public class ErrorHandler implements Responder { | |
| 9 | private Responder next; | |
| c9837b5e | 10 | private static Logger logger = Logger.getLogger("dolda.jsvc.context"); |
| a7d2eb26 FT |
11 | |
| 12 | public ErrorHandler(Responder next) { | |
| 13 | this.next = next; | |
| 14 | } | |
| 15 | ||
| 16 | protected void log(Request req, Throwable t) { | |
| 17 | logger.log(Level.SEVERE, "Unhandled error in responder", t); | |
| 18 | } | |
| 19 | ||
| 20 | protected void respdebug(Request req, Throwable t) { | |
| 21 | req.status(500); | |
| 22 | req.outheaders().put("content-type", "text/plain; charset=utf-8"); | |
| 23 | PrintWriter out; | |
| 24 | try { | |
| 25 | out = new PrintWriter(new OutputStreamWriter(req.output(), "UTF-8")); | |
| 26 | } catch(UnsupportedEncodingException e) { | |
| 27 | throw(new Error(e)); | |
| 28 | } | |
| 29 | t.printStackTrace(out); | |
| 30 | out.flush(); | |
| 31 | } | |
| 32 | ||
| 33 | protected void resperr(Request req, Throwable t) { | |
| 34 | req.status(500); | |
| 35 | req.outheaders().put("content-type", "text/html; charset=us-ascii"); | |
| 36 | PrintWriter out; | |
| 37 | try { | |
| 38 | out = new PrintWriter(new OutputStreamWriter(req.output(), "US-ASCII")); | |
| 39 | } catch(UnsupportedEncodingException e) { | |
| 40 | throw(new Error(e)); | |
| 41 | } | |
| 42 | out.println("<?xml version=\"1.0\" encoding=\"UTF-8\"?>"); | |
| 43 | out.println("<!DOCTYPE html PUBLIC \"-//W3C//DTD XHTML 1.1//EN\" \"http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd\">"); | |
| 44 | out.println("<html xmlns=\"http://www.w3.org/1999/xhtml\" xml:lang=\"en-US\">"); | |
| 45 | out.println("<head><title>Internal error</title></head>"); | |
| 46 | out.println("<body>"); | |
| 47 | out.println("<h1>Internal error</h1>"); | |
| 48 | out.println("An error occurred on the server processing your request."); | |
| 49 | out.println("</body>"); | |
| 50 | out.println("</html>"); | |
| 51 | out.flush(); | |
| 52 | } | |
| 53 | ||
| 54 | protected boolean debug(Request req, Throwable t) { | |
| ad522c76 FT |
55 | ThreadContext thc = ThreadContext.current(); |
| 56 | if(thc != null) { | |
| 57 | if(Misc.boolval(thc.server().sysconfig("jsvc.debug-errors", "0"))) | |
| 58 | return(true); | |
| 59 | } | |
| a7d2eb26 FT |
60 | SocketAddress rem = req.remoteaddr(); |
| 61 | return((rem instanceof InetSocketAddress) && ((InetSocketAddress)rem).getAddress().isLoopbackAddress()); | |
| 62 | } | |
| 63 | ||
| 64 | protected void handle(Request req, Throwable t) { | |
| 65 | log(req, t); | |
| 66 | if(req instanceof ResettableRequest) { | |
| 67 | ResettableRequest rr = (ResettableRequest)req; | |
| 68 | if(rr.canreset()) | |
| 69 | rr.reset(); | |
| 70 | } | |
| 71 | if(debug(req, t)) | |
| 72 | respdebug(req, t); | |
| 73 | else | |
| 74 | resperr(req, t); | |
| 75 | } | |
| 76 | ||
| 77 | public void respond(Request req) { | |
| 78 | try { | |
| 79 | next.respond(req); | |
| 80 | } catch(Throwable t) { | |
| 81 | handle(req, t); | |
| 82 | } | |
| 83 | } | |
| 84 | } |