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#region Copyright
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// /************************************************************************
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// Copyright (c) 2016 Jamie Rees
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// File: Analytics.cs
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// Created By: Jamie Rees
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//
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// Permission is hereby granted, free of charge, to any person obtaining
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// a copy of this software and associated documentation files (the
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// "Software"), to deal in the Software without restriction, including
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// without limitation the rights to use, copy, modify, merge, publish,
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// distribute, sublicense, and/or sell copies of the Software, and to
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// permit persons to whom the Software is furnished to do so, subject to
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// the following conditions:
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//
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// The above copyright notice and this permission notice shall be
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// included in all copies or substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
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// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
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// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
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// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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// ************************************************************************/
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#endregion
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using System;
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using System.Collections.Generic;
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using System.IO;
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using System.Linq;
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using System.Net;
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using System.Text;
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using System.Threading.Tasks;
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using System.Web;
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using NLog;
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using HttpUtility = Nancy.Helpers.HttpUtility;
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namespace PlexRequests.Helpers.Analytics
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{
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public class Analytics : IAnalytics
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{
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private const string AnalyticsUri = "http://www.google-analytics.com/collect";
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private const string RequestMethod = "POST";
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private const string TrackingId = "UA-77083919-2";
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private static Logger Log = LogManager.GetCurrentClassLogger();
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public void TrackEvent(Category category, Action action, string label, string username, int? value = null)
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{
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var cat = category.ToString();
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var act = action.ToString();
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Track(HitType.@event, username, cat, act, label, value);
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}
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public async Task TrackEventAsync(Category category, Action action, string label, string username, int? value = null)
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{
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var cat = category.ToString();
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var act = action.ToString();
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await TrackAsync(HitType.@event, username, cat, act, label, value);
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}
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public void TrackPageview(Category category, Action action, string label, string username, int? value = null)
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{
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var cat = category.ToString();
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var act = action.ToString();
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Track(HitType.@pageview, username, cat, act, label, value);
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}
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public async Task TrackPageviewAsync(Category category, Action action, string label, string username, int? value = null)
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{
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var cat = category.ToString();
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var act = action.ToString();
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await TrackAsync(HitType.@pageview, username, cat, act, label, value);
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}
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public void TrackException(string message, string username, bool fatal)
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{
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var fatalInt = fatal ? 1 : 0;
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Track(HitType.exception, message, fatalInt, username);
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}
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public async Task TrackExceptionAsync(string message, string username, bool fatal)
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{
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var fatalInt = fatal ? 1 : 0;
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await TrackAsync(HitType.exception, message, fatalInt, username);
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}
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private void Track(HitType type, string username, string category, string action, string label, int? value = null)
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{
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if (string.IsNullOrEmpty(category)) throw new ArgumentNullException(nameof(category));
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if (string.IsNullOrEmpty(action)) throw new ArgumentNullException(nameof(action));
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if (string.IsNullOrEmpty(username)) throw new ArgumentNullException(nameof(username));
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var postData = BuildRequestData(type, username, category, action, label, value, null, null);
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var postDataString = postData
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.Aggregate("", (data, next) => string.Format($"{data}&{next.Key}={HttpUtility.UrlEncode(next.Value)}"))
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.TrimEnd('&');
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SendRequest(postDataString);
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}
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private async Task TrackAsync(HitType type, string username, string category, string action, string label, int? value = null)
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{
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if (string.IsNullOrEmpty(category)) throw new ArgumentNullException(nameof(category));
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if (string.IsNullOrEmpty(action)) throw new ArgumentNullException(nameof(action));
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if (string.IsNullOrEmpty(username)) throw new ArgumentNullException(nameof(username));
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var postData = BuildRequestData(type, username, category, action, label, value, null, null);
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var postDataString = postData
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.Aggregate("", (data, next) => string.Format($"{data}&{next.Key}={HttpUtility.UrlEncode(next.Value)}"))
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.TrimEnd('&');
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await SendRequestAsync(postDataString);
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}
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private async Task TrackAsync(HitType type, string message, int fatal, string username)
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{
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if (string.IsNullOrEmpty(message)) throw new ArgumentNullException(nameof(message));
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if (string.IsNullOrEmpty(username)) throw new ArgumentNullException(nameof(username));
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var postData = BuildRequestData(type, username, null, null, null, null, message, fatal);
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var postDataString = postData
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.Aggregate("", (data, next) => string.Format($"{data}&{next.Key}={HttpUtility.UrlEncode(next.Value)}"))
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.TrimEnd('&');
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await SendRequestAsync(postDataString);
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}
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private void Track(HitType type, string message, int fatal, string username)
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{
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if (string.IsNullOrEmpty(message)) throw new ArgumentNullException(nameof(message));
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if (string.IsNullOrEmpty(username)) throw new ArgumentNullException(nameof(username));
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var postData = BuildRequestData(type, username, null, null, null, null, message, fatal);
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var postDataString = postData
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.Aggregate("", (data, next) => string.Format($"{data}&{next.Key}={HttpUtility.UrlEncode(next.Value)}"))
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.TrimEnd('&');
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SendRequest(postDataString);
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}
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private void SendRequest(string postDataString)
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{
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var request = (HttpWebRequest)WebRequest.Create(AnalyticsUri);
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request.Method = RequestMethod;
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// set the Content-Length header to the correct value
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request.ContentLength = Encoding.UTF8.GetByteCount(postDataString);
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// write the request body to the request
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using (var writer = new StreamWriter(request.GetRequestStream()))
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{
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writer.Write(postDataString);
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}
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try
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{
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var webResponse = (HttpWebResponse)request.GetResponse();
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if (webResponse.StatusCode != HttpStatusCode.OK)
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{
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throw new HttpException((int)webResponse.StatusCode, "Google Analytics tracking did not return OK 200");
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}
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}
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catch (Exception ex)
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{
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Log.Error(ex, "Analytics tracking failed");
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}
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}
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private async Task SendRequestAsync(string postDataString)
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{
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var request = (HttpWebRequest)WebRequest.Create(AnalyticsUri);
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request.Method = RequestMethod;
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// set the Content-Length header to the correct value
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request.ContentLength = Encoding.UTF8.GetByteCount(postDataString);
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// write the request body to the request
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using (var writer = new StreamWriter(request.GetRequestStream()))
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{
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await writer.WriteAsync(postDataString);
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}
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try
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{
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var webResponse = (HttpWebResponse)await request.GetResponseAsync();
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if (webResponse.StatusCode != HttpStatusCode.OK)
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{
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throw new HttpException((int)webResponse.StatusCode, "Google Analytics tracking did not return OK 200");
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}
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}
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catch (Exception ex)
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{
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Log.Error(ex, "Analytics tracking failed");
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}
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}
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private Dictionary<string, string> BuildRequestData(HitType type, string username, string category, string action, string label, int? value, string exceptionDescription, int? fatal)
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{
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var postData = new Dictionary<string, string>
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{
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{ "v", "1" },
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{ "tid", TrackingId },
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{ "t", type.ToString() },
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{"cid", "" }
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};
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if (!string.IsNullOrEmpty(username))
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{
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postData.Add("uid", username);
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}
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if (!string.IsNullOrEmpty(label))
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{
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postData.Add("el", label);
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}
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if (value.HasValue)
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{
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postData.Add("ev", value.ToString());
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}
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if (!string.IsNullOrEmpty(category))
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{
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postData.Add("ec", category);
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}
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if (!string.IsNullOrEmpty(action))
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{
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postData.Add("ea", action);
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}
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if (!string.IsNullOrEmpty(exceptionDescription))
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{
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postData.Add("exd", exceptionDescription);
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}
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if (fatal.HasValue)
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{
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postData.Add("exf", fatal.ToString());
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}
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return postData;
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}
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}
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}
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tidusjar
8 years ago