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//
// LogReportingService.cs
//
// Author:
// Alan McGovern <alan@xamarin.com>
//
// Copyright (c) 2011 Alan McGovern
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
// THE SOFTWARE.
using System;
using System.IO;
using System.Threading;
using System.Net;
using System.Web;
using System.IO.Compression;
namespace MonoDevelop.Core.LogReporting
{
public static class LogReportingService
{
const string ServiceVersion = "1";
public static readonly FilePath CrashLogDirectory = UserProfile.Current.LogDir.Combine ("LogAgent");
const string ReportCrashesKey = "MonoDevelop.LogAgent.ReportCrashes";
const string ReportUsageKey = "MonoDevelop.LogAgent.ReportUsage";
static int CrashId;
static int Processing;
// Return value is the new value for 'ReportCrashes'
// First parameter is the current value of 'ReportCrashes
// Second parameter is the exception
// Thirdparameter shows if the exception is fatal or not
public static Func<bool?, Exception, bool, bool?> UnhandledErrorOccured;
public static bool? ReportCrashes {
get { return PropertyService.Get<bool?> (ReportCrashesKey); }
set { PropertyService.Set (ReportCrashesKey, value); }
}
public static bool? ReportUsage {
get { return PropertyService.Get<bool?> (ReportUsageKey); }
set { PropertyService.Set (ReportUsageKey, value); }
}
public static void ReportUnhandledException (Exception ex, bool willShutDown)
{
var oldReportCrashes = ReportCrashes;
if (UnhandledErrorOccured != null)
ReportCrashes = UnhandledErrorOccured (ReportCrashes, ex, willShutDown);
// If crash reporting has been explicitly disabled, disregard this crash
if (ReportCrashes.HasValue && !ReportCrashes.Value)
return;
byte[] data;
using (var stream = new MemoryStream ()) {
using (var writer = System.Xml.XmlWriter.Create (stream)) {
writer.WriteStartElement ("CrashLog");
writer.WriteAttributeString ("version", ServiceVersion);
writer.WriteElementString ("SystemInformation", SystemInformation.ToText ());
writer.WriteElementString ("Exception", ex.ToString ());
writer.WriteEndElement ();
}
data = stream.ToArray ();
}
// Log to disk only if uploading fails.
var filename = string.Format ("{0}.{1}.crashlog", SystemInformation.SessionUuid, Interlocked.Increment (ref CrashId));
ThreadPool.QueueUserWorkItem (delegate {
if (!TryUploadReport (filename, data)) {
if (!Directory.Exists (CrashLogDirectory))
Directory.CreateDirectory (CrashLogDirectory);
File.WriteAllBytes (CrashLogDirectory.Combine (filename), data);
}
});
//ensure we don't lose the setting
if (ReportCrashes != oldReportCrashes) {
PropertyService.SaveProperties ();
}
}
public static void ProcessCache ()
{
int origValue = -1;
try {
// Ensure only 1 thread at a time attempts to upload cached reports
origValue = Interlocked.CompareExchange (ref Processing, 1, 0);
if (origValue != 0)
return;
// Uploading is not enabled, so bail out
if (!ReportCrashes.GetValueOrDefault ())
return;
// Definitely no crash reports if this doesn't exist
if (!Directory.Exists (CrashLogDirectory))
return;
foreach (var file in Directory.GetFiles (CrashLogDirectory)) {
if (TryUploadReport (file, File.ReadAllBytes (file)))
File.Delete (file);
}
} catch (Exception ex) {
LoggingService.LogError ("Exception processing cached crashes", ex);
} finally {
if (origValue == 0)
Interlocked.CompareExchange (ref Processing, 0, 1);
}
}
static bool TryUploadReport (string filename, byte[] data)
{
try {
var server = Environment.GetEnvironmentVariable ("MONODEVELOP_CRASHREPORT_SERVER");
if (string.IsNullOrEmpty (server))
server = "monodevlog.xamarin.com:35162";
var request = (HttpWebRequest) WebRequest.Create (string.Format ("http://{0}/logagentreport/", server));
request.Headers.Add ("LogAgentVersion", ServiceVersion);
request.Headers.Add ("LogAgent_Filename", Path.GetFileName (filename));
request.Headers.Add ("Content-Encoding", "gzip");
request.Method = "POST";
// Compress the data and then use the compressed length in ContentLength
var compressed = new MemoryStream ();
using (var zipper = new GZipStream (compressed, CompressionMode.Compress))
zipper.Write (data, 0, data.Length);
data = compressed.ToArray ();
request.ContentLength = data.Length;
using (var requestStream = request.GetRequestStream ())
requestStream.Write (data, 0, data.Length);
LoggingService.LogDebug ("CrashReport sent to server, awaiting response...");
// Ensure the server has correctly processed everything.
using (var response = (HttpWebResponse) request.GetResponse ()) {
if (response.StatusCode != HttpStatusCode.OK) {
LoggingService.LogError ("Server responded with status code {1} and error: {0}", response.StatusDescription, response.StatusCode);
return false;
}
}
} catch (Exception ex) {
LoggingService.LogError ("Failed to upload report to the server", ex);
return false;
}
LoggingService.LogDebug ("Successfully uploaded crash report");
return true;
}
}
}
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