xenadmin/XenModel/Actions/HealthCheck/GetHealthCheckAnalysisResultAction.cs
Frezzle be94dc2f45 [CA-213410] XenCenter ignores proxy settings in some places
Assigned Proxy property in all WebClient, WebRequest and HttpWebRequest instances.
Removed "proxy not supported" message from Download Appliance dialog, since the download does work with a proxy.

Signed-off-by: Frezzle <frederico.mazzone@citrix.com>
2016-06-27 17:59:02 +01:00

244 lines
11 KiB
C#

/* Copyright (c) Citrix Systems Inc.
* All rights reserved.
*
* Redistribution and use in source and binary forms,
* with or without modification, are permitted provided
* that the following conditions are met:
*
* * Redistributions of source code must retain the above
* copyright notice, this list of conditions and the
* following disclaimer.
* * Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the
* following disclaimer in the documentation and/or other
* materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
* CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,
* INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
using System;
using System.Collections.Generic;
using System.IO;
using System.Net;
using System.Web.Script.Serialization;
using XenAdmin.Model;
using XenAPI;
using System.Linq;
namespace XenAdmin.Actions
{
public class GetHealthCheckAnalysisResultAction: AsyncAction
{
private static readonly log4net.ILog log = log4net.LogManager.GetLogger(System.Reflection.MethodBase.GetCurrentMethod().DeclaringType);
private const string DIAG_RESULT_URL = "/diag_sdk/diag_results/";
private const string ANALYSIS_PROGRESS_URL = "/diag_sdk/analysis_progress/";
private readonly string diagnosticDomainName = "https://cis.citrix.com";
public GetHealthCheckAnalysisResultAction(Pool pool, bool suppressHistory)
: base(pool.Connection, Messages.ACTION_GET_HEALTH_CHECK_RESULT, Messages.ACTION_GET_HEALTH_CHECK_RESULT_PROGRESS, suppressHistory)
{
#region RBAC Dependencies
ApiMethodsToRoleCheck.Add("secret.get_by_uuid");
ApiMethodsToRoleCheck.Add("secret.get_value");
ApiMethodsToRoleCheck.Add("pool.set_health_check_config");
#endregion
}
public GetHealthCheckAnalysisResultAction(Pool pool, string diagnosticDomainName, bool suppressHistory)
: this(pool, suppressHistory)
{
if (!string.IsNullOrEmpty(diagnosticDomainName))
this.diagnosticDomainName = diagnosticDomainName;
}
protected override void Run()
{
try
{
var diagnosticToken = Pool.HealthCheckSettings.GetSecretyInfo(Session, HealthCheckSettings.DIAGNOSTIC_TOKEN_SECRET);
if (string.IsNullOrEmpty(diagnosticToken))
{
log.DebugFormat("Cannot get the diagnostic result for {0}, because couldn't retrieve the diagnostic token", Pool.Name);
Description = Messages.ACTION_GET_HEALTH_CHECK_RESULT_FAILED;
return;
}
if (!Pool.HealthCheckSettings.HasUpload)
{
log.DebugFormat("Cannot get the diagnostic result for {0}, because the there is no upload completed yet", Pool.Name);
Description = Messages.ACTION_GET_HEALTH_CHECK_RESULT_FAILED;
return;
}
var analysisProgress = GetAnalysisProgress(diagnosticToken, Pool.HealthCheckSettings.UploadUuid);
if (analysisProgress >= 0 && analysisProgress < 100) // check if the progress is a valid value less than 100
{
log.DebugFormat("Analysis for {0} not completed yet", Pool.Name);
Description = Messages.COMPLETED;
return;
}
var analysisResult = GetAnalysisResult(diagnosticToken, Pool.HealthCheckSettings.UploadUuid);
if (analysisResult.Count == 0 && analysisProgress == -1 && DateTime.Compare(Pool.HealthCheckSettings.LastSuccessfulUploadTime.AddMinutes(10), DateTime.UtcNow) > 0)
{
log.DebugFormat("Diagnostic result for {0} is empty. Maybe analysis result is not yet available", Pool.Name);
Description = Messages.COMPLETED;
return;
}
log.Debug("Saving analysis result");
Dictionary<string, string> newConfig = Pool.health_check_config;
newConfig[HealthCheckSettings.REPORT_ANALYSIS_SEVERITY] = GetMaxSeverity(analysisResult).ToString();
newConfig[HealthCheckSettings.REPORT_ANALYSIS_ISSUES_DETECTED] = GetDistinctIssueCount(analysisResult).ToString();
newConfig[HealthCheckSettings.REPORT_ANALYSIS_UPLOAD_UUID] = Pool.HealthCheckSettings.UploadUuid;
newConfig[HealthCheckSettings.REPORT_ANALYSIS_UPLOAD_TIME] = Pool.HealthCheckSettings.LastSuccessfulUpload;
Pool.set_health_check_config(Session, Pool.opaque_ref, newConfig);
}
catch (Exception e)
{
log.ErrorFormat("Exception while getting diagnostic result from {0}. Exception Message: {1} ", diagnosticDomainName, e.Message);
Description = Messages.ACTION_GET_HEALTH_CHECK_RESULT_FAILED;
throw;
}
Description = Messages.COMPLETED;
}
private DiagnosticAlertSeverity GetMaxSeverity(List<AnalysisResult> diagnosticAlerts)
{
var maxSeverity = DiagnosticAlertSeverity.Info;
foreach (var diagnosticAlert in diagnosticAlerts)
{
var severity = HealthCheckSettings.StringToDiagnosticAlertSeverity(diagnosticAlert.severity);
if (severity > maxSeverity)
maxSeverity = severity;
}
return maxSeverity;
}
private int GetDistinctIssueCount(List<AnalysisResult> issues)
{
// get the number of distinct issues (by name)
return issues.Select(issue => issue.name).Distinct().Count();
}
/// <summary>
/// Tries to retrieve the analysis progress for a particulat upload
/// </summary>
/// <param name="diagnosticToken"></param>
/// <param name="uploadUuid"></param>
/// <returns>the analysis progress as pecentage, or -1 if the progress cannot be retrieved</returns>
private double GetAnalysisProgress(string diagnosticToken, string uploadUuid)
{
try
{
var urlString = string.Format("{0}{1}?upload_id={2}", diagnosticDomainName, ANALYSIS_PROGRESS_URL, uploadUuid);
var authorizationHeader = "BT " + diagnosticToken;
var httpWebRequest = (HttpWebRequest)WebRequest.Create(urlString);
httpWebRequest.Headers.Add("Authorization", authorizationHeader);
httpWebRequest.Method = "GET";
httpWebRequest.Proxy = XenAdminConfigManager.Provider.GetProxyFromSettings(null, false);
string result;
var httpResponse = (HttpWebResponse)httpWebRequest.GetResponse();
using (var streamReader = new StreamReader(httpResponse.GetResponseStream()))
{
result = streamReader.ReadToEnd();
}
return ParseAnalysisProgress(result, uploadUuid);
}
catch (Exception e)
{
log.DebugFormat("Exception while getting analysis progress result from {0}. Exception Message: {1} ", diagnosticDomainName, e.Message);
return -1;
}
}
/// <summary>
/// Deserialize the analysis progress from a JSON object that has "upload_id" as key and a number (percentage from 0 to 100) as a value
/// </summary>
/// <param name="jsonString"></param>
/// <param name="uploadUuid"></param>
/// <returns>the analysis progress as pecentage, or -1 if the JSON object is invalid</returns>
public static double ParseAnalysisProgress(string jsonString, string uploadUuid)
{
if (string.IsNullOrEmpty(jsonString))
return -1;
try
{
var serializer = new JavaScriptSerializer();
Dictionary<string, object> result = serializer.DeserializeObject(jsonString) as Dictionary<string, object>;
var progress = result != null && result.ContainsKey(uploadUuid) ? Convert.ToDouble(result[uploadUuid]) : -1;
return progress >= 0 && progress <= 100 ? progress : -1;
}
catch (Exception e)
{
log.DebugFormat("Exception while deserializing json: {0}. Exception Message: {1} ", jsonString, e.Message);
return -1;
}
}
private List<AnalysisResult> GetAnalysisResult(string diagnosticToken, string uploadUuid)
{
var urlString = string.Format("{0}{1}?upload_uuid={2}", diagnosticDomainName, DIAG_RESULT_URL, uploadUuid);
var authorizationHeader = "BT " + diagnosticToken;
var httpWebRequest = (HttpWebRequest)WebRequest.Create(urlString);
httpWebRequest.Headers.Add("Authorization", authorizationHeader);
httpWebRequest.Method = "GET";
httpWebRequest.Proxy = XenAdminConfigManager.Provider.GetProxyFromSettings(null, false);
string result;
var httpResponse = (HttpWebResponse)httpWebRequest.GetResponse();
using (var streamReader = new StreamReader(httpResponse.GetResponseStream()))
{
result = streamReader.ReadToEnd();
}
TemplateResponse response = new JavaScriptSerializer().Deserialize<TemplateResponse>(result);
return response.results;
}
private class TemplateResponse
{
public List<AnalysisResult> results { get; set; }
}
private class AnalysisResult
{
public string severity { get; set; }
public string extra_information { get; set; }
public string owner { get; set; }
public string crm_id { get; set; }
public string id { get; set; }
public List<string> category { get; set; }
public string analysis_id { get; set; }
public string priority { get; set; }
public string product { get; set; }
public string description { get; set; }
public DateTime analysis_completion_time { get; set; }
public string component { get; set; }
public string name { get; set; }
public string upload_description { get; set; }
public string upload_id { get; set; }
public string recommendations { get; set; }
public string env_identifier { get; set; }
}
}
}