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Improve availability checker reliability

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This commit is contained in:
Yoshi Askharoun
2024-05-17 23:47:28 -05:00
parent b6498a458d
commit 88f6c2b2c6
1 changed files with 45 additions and 36 deletions
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ZuneModCore/Mods/WebservicesMod.cs
+45 -36
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@@ -2,7 +2,8 @@
using System;
using System.Collections.Generic;
using System.IO;
using System.Net;
using System.Net.Http;
using System.Threading;
using System.Threading.Tasks;
using static ZuneModCore.Mods.FeaturesOverrideMod;
@@ -20,6 +21,9 @@ namespace ZuneModCore.Mods
private const string WEBSERVICE_SUBTITLE_SUCCESS = "OK";
private const string WEBSERVICE_SUBTITLE_UNREACHABLE = "Unreachable";
private readonly HttpClient _client = new();
private CancellationTokenSource _cts = new();
public override string Id => nameof(WebservicesMod);
public override string Title => "Community Webservices";
@@ -35,7 +39,7 @@ namespace ZuneModCore.Mods
{
new AbstractTextBox("hostBox", string.Empty, "zune.net")
{
Title = "Host",
Title = "host",
TooltipText = "The host where the replacement servers are located. Must be the same length as \"zune.net\"."
},
new AbstractDataList("hostsTest", new List<AbstractUIMetadata>()
@@ -54,13 +58,11 @@ namespace ZuneModCore.Mods
}
)
{
Title = "Availability",
Subtitle = "Tests availability of each known web service on the new host.",
Subtitle = "TEST AVAILABILITY OF EACH KNOWN WEB SERVICE ON THE NEW HOST.".ToUpper(),
IsUserEditingEnabled = false,
PreferredDisplayMode = AbstractDataListPreferredDisplayMode.Grid,
}
};
optionsUi.Title = string.Empty;
return optionsUi;
}
@@ -77,6 +79,8 @@ namespace ZuneModCore.Mods
public override Task Init()
{
_client.Timeout = TimeSpan.FromSeconds(3);
AbstractTextBox newHostBox = (AbstractTextBox)OptionsUI![0];
newHostBox.ValueChanged += OnHostChanged;
newHostBox.Value = "zunes.me";
@@ -162,7 +166,7 @@ namespace ZuneModCore.Mods
setOverrideSuccess &= SetFeatureOverride("Videos", true);
if (setOverrideSuccess != true)
{
return "Unable to set feature overrides. The mod was successful, but you may not be able to see it in the Zune Software.";
return "Unable to set feature overrides. The mod was successful, but you may not be able to see it in the Zune software.";
}
return null;
@@ -205,7 +209,7 @@ namespace ZuneModCore.Mods
setOverrideSuccess &= SetFeatureOverride("Videos", false);
if (setOverrideSuccess != true)
{
return "Unable to reset feature overrides. The mod was successfully removed, but you may still be able to see it in the Zune Software.";
return "Unable to reset feature overrides. The mod was successfully removed, but you may still be able to see it in the Zune software.";
}
return null;
@@ -222,6 +226,11 @@ namespace ZuneModCore.Mods
async void OnHostChanged(object? sender, string newHost)
{
await _cts.CancelAsync();
_client.CancelPendingRequests();
_cts = new();
AbstractDataList list = (AbstractDataList)OptionsUI![1];
// Reset all statuses
@@ -231,43 +240,21 @@ namespace ZuneModCore.Mods
metadata.Subtitle = WEBSERVICE_SUBTITLE_TESTING;
}
// Update all statuses
// We want to update all the statuses, but we also need to be able
// to cancel it when the user enters a new host.
foreach (AbstractUIMetadata metadata in list.Items)
{
string url = "http://" + (metadata.Id.Split('_')[1] + '.' + newHost).Replace("www.", string.Empty);
string? pingResult = await Ping(url);
if (pingResult == null)
{
metadata.IconCode = WEBSERVICE_ICON_SUCCESS;
metadata.Subtitle = WEBSERVICE_SUBTITLE_SUCCESS;
}
else if (pingResult != string.Empty)
{
metadata.IconCode = WEBSERVICE_ICON_UNAVAILABLE;
metadata.Subtitle = pingResult;
}
else
{
metadata.IconCode = WEBSERVICE_ICON_UNREACHABLE;
metadata.Subtitle = WEBSERVICE_SUBTITLE_UNREACHABLE;
}
}
UpdateStatus(metadata, newHost, _cts.Token);
}
private async Task<string?> Ping(string url)
private async Task<string?> Ping(string url, CancellationToken token = default)
{
try
{
HttpWebRequest request = WebRequest.CreateHttp(url);
request.Timeout = 3000;
request.AllowAutoRedirect = true;
request.Method = "GET";
using var response = await request.GetResponseAsync();
var response = await _client.GetAsync(url, token);
response.EnsureSuccessStatusCode();
return null;
}
catch (WebException webEx)
catch (HttpRequestException webEx)
{
if (webEx.InnerException?.InnerException != null)
return webEx.InnerException.InnerException.Message;
@@ -278,5 +265,27 @@ namespace ZuneModCore.Mods
return ex?.Message ?? string.Empty;
}
}
private async Task UpdateStatus(AbstractUIMetadata metadata, string newHost, CancellationToken token = default)
{
string url = "http://" + (metadata.Id.Split('_')[1] + '.' + newHost).Replace("www.", string.Empty);
string? pingResult = await Ping(url, token);
if (pingResult == null)
{
metadata.IconCode = WEBSERVICE_ICON_SUCCESS;
metadata.Subtitle = WEBSERVICE_SUBTITLE_SUCCESS;
}
else if (pingResult != string.Empty)
{
metadata.IconCode = WEBSERVICE_ICON_UNAVAILABLE;
metadata.Subtitle = pingResult;
}
else
{
metadata.IconCode = WEBSERVICE_ICON_UNREACHABLE;
metadata.Subtitle = WEBSERVICE_SUBTITLE_UNREACHABLE;
}
}
}
}