/*
* If this method is called with isTrackingUrl=false, no tracking url
* will set in the app report. Hence, there will be a connection exception
* when the prxyCon tries to connect.
*/
private AppReportFetcher.FetchedAppReport GetDefaultApplicationReport(ApplicationId
appId, bool isTrackingUrl)
{
AppReportFetcher.FetchedAppReport fetchedReport;
ApplicationReport result = new ApplicationReportPBImpl();
result.SetApplicationId(appId);
result.SetYarnApplicationState(YarnApplicationState.Running);
result.SetUser(CommonConfigurationKeys.DefaultHadoopHttpStaticUser);
if (isTrackingUrl)
{
result.SetOriginalTrackingUrl("localhost:" + TestWebAppProxyServlet.originalPort
+ "/foo/bar");
}
if (this._enclosing.configuration.GetBoolean(YarnConfiguration.ApplicationHistoryEnabled
, false))
{
fetchedReport = new AppReportFetcher.FetchedAppReport(result, AppReportFetcher.AppReportSource
.Ahs);
}
else
{
fetchedReport = new AppReportFetcher.FetchedAppReport(result, AppReportFetcher.AppReportSource
.Rm);
}
return(fetchedReport);
}
/// <summary>
/// Get an application report for the specified application id from the RM and
/// fall back to the Application History Server if not found in RM.
/// </summary>
/// <param name="appId">id of the application to get.</param>
/// <returns>the ApplicationReport for the appId.</returns>
/// <exception cref="Org.Apache.Hadoop.Yarn.Exceptions.YarnException">on any error.</exception>
/// <exception cref="System.IO.IOException"/>
public virtual AppReportFetcher.FetchedAppReport GetApplicationReport(ApplicationId
appId)
{
GetApplicationReportRequest request = recordFactory.NewRecordInstance <GetApplicationReportRequest
>();
request.SetApplicationId(appId);
ApplicationReport appReport;
AppReportFetcher.FetchedAppReport fetchedAppReport;
try
{
appReport = applicationsManager.GetApplicationReport(request).GetApplicationReport
();
fetchedAppReport = new AppReportFetcher.FetchedAppReport(appReport, AppReportFetcher.AppReportSource
.Rm);
}
catch (ApplicationNotFoundException e)
{
if (!isAHSEnabled)
{
// Just throw it as usual if historyService is not enabled.
throw;
}
//Fetch the application report from AHS
appReport = historyManager.GetApplicationReport(request).GetApplicationReport();
fetchedAppReport = new AppReportFetcher.FetchedAppReport(appReport, AppReportFetcher.AppReportSource
.Ahs);
}
return(fetchedAppReport);
}
/// <exception cref="Org.Apache.Hadoop.Yarn.Exceptions.YarnException"/>
public override AppReportFetcher.FetchedAppReport GetApplicationReport(ApplicationId
appId)
{
if (this.answer == 0)
{
return(this.GetDefaultApplicationReport(appId));
}
else
{
if (this.answer == 1)
{
return(null);
}
else
{
if (this.answer == 2)
{
AppReportFetcher.FetchedAppReport result = this.GetDefaultApplicationReport(appId
);
result.GetApplicationReport().SetUser("user");
return(result);
}
else
{
if (this.answer == 3)
{
AppReportFetcher.FetchedAppReport result = this.GetDefaultApplicationReport(appId
);
result.GetApplicationReport().SetYarnApplicationState(YarnApplicationState.Killed
);
return(result);
}
else
{
if (this.answer == 4)
{
throw new ApplicationNotFoundException("Application is not found");
}
else
{
if (this.answer == 5)
{
// test user-provided path and query parameter can be appended to the
// original tracking url
AppReportFetcher.FetchedAppReport result = this.GetDefaultApplicationReport(appId
);
result.GetApplicationReport().SetOriginalTrackingUrl("localhost:" + TestWebAppProxyServlet
.originalPort + "/foo/bar?a=b#main");
result.GetApplicationReport().SetYarnApplicationState(YarnApplicationState.Finished
);
return(result);
}
else
{
if (this.answer == 6)
{
return(this.GetDefaultApplicationReport(appId, false));
}
}
}
}
}
}
}
return(null);
}
/// <exception cref="System.IO.IOException"/>
protected override void DoGet(HttpServletRequest req, HttpServletResponse resp)
{
try
{
string userApprovedParamS = req.GetParameter(ProxyUriUtils.ProxyApprovalParam);
bool userWasWarned = false;
bool userApproved = Sharpen.Extensions.ValueOf(userApprovedParamS);
bool securityEnabled = IsSecurityEnabled();
string remoteUser = req.GetRemoteUser();
string pathInfo = req.GetPathInfo();
string[] parts = pathInfo.Split("/", 3);
if (parts.Length < 2)
{
Log.Warn("{} gave an invalid proxy path {}", remoteUser, pathInfo);
NotFound(resp, "Your path appears to be formatted incorrectly.");
return;
}
//parts[0] is empty because path info always starts with a /
string appId = parts[1];
string rest = parts.Length > 2 ? parts[2] : string.Empty;
ApplicationId id = Apps.ToAppID(appId);
if (id == null)
{
Log.Warn("{} attempting to access {} that is invalid", remoteUser, appId);
NotFound(resp, appId + " appears to be formatted incorrectly.");
return;
}
if (securityEnabled)
{
string cookieName = GetCheckCookieName(id);
Cookie[] cookies = req.GetCookies();
if (cookies != null)
{
foreach (Cookie c in cookies)
{
if (cookieName.Equals(c.GetName()))
{
userWasWarned = true;
userApproved = userApproved || Sharpen.Extensions.ValueOf(c.GetValue());
break;
}
}
}
}
bool checkUser = securityEnabled && (!userWasWarned || !userApproved);
AppReportFetcher.FetchedAppReport fetchedAppReport = null;
ApplicationReport applicationReport = null;
try
{
fetchedAppReport = GetApplicationReport(id);
if (fetchedAppReport != null)
{
if (fetchedAppReport.GetAppReportSource() != AppReportFetcher.AppReportSource.Rm &&
fetchedAppReport.GetAppReportSource() != AppReportFetcher.AppReportSource.Ahs)
{
throw new NotSupportedException("Application report not " + "fetched from RM or history server."
);
}
applicationReport = fetchedAppReport.GetApplicationReport();
}
}
catch (ApplicationNotFoundException)
{
applicationReport = null;
}
if (applicationReport == null)
{
Log.Warn("{} attempting to access {} that was not found", remoteUser, id);
URI toFetch = ProxyUriUtils.GetUriFromTrackingPlugins(id, this.trackingUriPlugins
);
if (toFetch != null)
{
ProxyUtils.SendRedirect(req, resp, toFetch.ToString());
return;
}
NotFound(resp, "Application " + appId + " could not be found " + "in RM or history server"
);
return;
}
string original = applicationReport.GetOriginalTrackingUrl();
URI trackingUri;
if (original == null || original.Equals("N/A") || original.Equals(string.Empty))
{
if (fetchedAppReport.GetAppReportSource() == AppReportFetcher.AppReportSource.Rm)
{
// fallback to ResourceManager's app page if no tracking URI provided
// and Application Report was fetched from RM
Log.Debug("Original tracking url is '{}'. Redirecting to RM app page", original ==
null ? "NULL" : original);
ProxyUtils.SendRedirect(req, resp, StringHelper.Pjoin(rmAppPageUrlBase, id.ToString
()));
}
else
{
if (fetchedAppReport.GetAppReportSource() == AppReportFetcher.AppReportSource.Ahs)
{
// fallback to Application History Server app page if the application
// report was fetched from AHS
Log.Debug("Original tracking url is '{}'. Redirecting to AHS app page", original
== null ? "NULL" : original);
ProxyUtils.SendRedirect(req, resp, StringHelper.Pjoin(ahsAppPageUrlBase, id.ToString
()));
}
}
return;
}
else
{
if (ProxyUriUtils.GetSchemeFromUrl(original).IsEmpty())
{
trackingUri = ProxyUriUtils.GetUriFromAMUrl(WebAppUtils.GetHttpSchemePrefix(conf)
, original);
}
else
{
trackingUri = new URI(original);
}
}
string runningUser = applicationReport.GetUser();
if (checkUser && !runningUser.Equals(remoteUser))
{
Log.Info("Asking {} if they want to connect to the " + "app master GUI of {} owned by {}"
, remoteUser, appId, runningUser);
WarnUserPage(resp, ProxyUriUtils.GetPathAndQuery(id, rest, req.GetQueryString(),
true), runningUser, id);
return;
}
// Append the user-provided path and query parameter to the original
// tracking url.
IList <NameValuePair> queryPairs = URLEncodedUtils.Parse(req.GetQueryString(), null
);
UriBuilder builder = UriBuilder.FromUri(trackingUri);
foreach (NameValuePair pair in queryPairs)
{
builder.QueryParam(pair.GetName(), pair.GetValue());
}
URI toFetch_1 = builder.Path(rest).Build();
Log.Info("{} is accessing unchecked {}" + " which is the app master GUI of {} owned by {}"
, remoteUser, toFetch_1, appId, runningUser);
switch (applicationReport.GetYarnApplicationState())
{
case YarnApplicationState.Killed:
case YarnApplicationState.Finished:
case YarnApplicationState.Failed:
{
ProxyUtils.SendRedirect(req, resp, toFetch_1.ToString());
return;
}
default:
{
break;
}
}
// fall out of the switch
Cookie c_1 = null;
if (userWasWarned && userApproved)
{
c_1 = MakeCheckCookie(id, true);
}
ProxyLink(req, resp, toFetch_1, c_1, GetProxyHost());
}
catch (Exception e)
{
throw new IOException(e);
}
}
