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@page "/MediaLocator"
@inject HttpClient Http
<h3>Media locator</h3>
<hr/>
<b>This is going to expose your IP address to all these homeservers!</b>
<details>
<summary>Checked homeserver list (@homeservers.Count entries)</summary>
<ul>
@foreach (var hs in homeservers)
{
<li>@hs</li>
}
</ul>
</details>
<button @onclick="addMoreHomeservers">Add more homeservers</button>
<br/>
<span>MXC URL: </span>
<input type="text" @bind="mxcUrl" />
<button @onclick="executeSearch">Search</button>
@if (successResults.Count > 0)
{
<h4>Successes</h4>
<ul>
@foreach (var result in successResults)
{
<li>@result</li>
}
</ul>
}
@if (errorResults.Count > 0)
{
<h4>Errors</h4>
<ul>
@foreach (var result in errorResults)
{
<li>@result</li>
}
</ul>
}
@code {
string mxcUrl { get; set; }
List<string> successResults = new List<string>();
List<string> errorResults = new List<string>();
List<string> homeservers = new List<string>();
protected override async Task OnInitializedAsync()
{
await base.OnInitializedAsync();
homeservers.AddRange(new []
{
"matrix.org",
"feline.support",
"rory.gay",
"the-apothecary.club",
"envs.net",
"projectsegfau.lt"
});
}
async Task executeSearch()
{
var sem = new SemaphoreSlim(128, 128);
homeservers.ForEach(async hs =>
{
await sem.WaitAsync();
var httpClient = new HttpClient { BaseAddress = new Uri(hs) };
httpClient.Timeout = TimeSpan.FromSeconds(5);
var rmu = mxcUrl.Replace("mxc://", $"{hs}/_matrix/media/r0/download/");
try
{
var res = await httpClient.SendAsync(new HttpRequestMessage(HttpMethod.Head, rmu));
if (res.IsSuccessStatusCode)
{
successResults.Add($"{hs}: found - {res.Content.Headers.ContentLength} bytes");
StateHasChanged();
return;
}
errorResults.Add($"Error: {hs} - {res.StatusCode}\n" + await res.Content.ReadAsStringAsync());
}
catch (Exception e)
{
errorResults.Add($"Error: {e}");
}
finally
{
sem.Release();
}
StateHasChanged();
});
}
async Task addMoreHomeservers()
{
await LocalStorageWrapper.LoadFromLocalStorage(LocalStorage);
var res = await Http.GetAsync("/homeservers.txt");
var content = await res.Content.ReadAsStringAsync();
homeservers.Clear();
var lines = content.Split("\n");
var rhs = new RemoteHomeServer("rory.gay");
var sem = new SemaphoreSlim(128, 128);
lines.ToList().ForEach(async line =>
{
await sem.WaitAsync();
try
{
homeservers.Add(await rhs.ResolveHomeserverFromWellKnown(line));
StateHasChanged();
if(Random.Shared.Next(0,101) == 50)
await LocalStorageWrapper.SaveCacheToLocalStorage(LocalStorage);
}
catch (Exception e)
{
Console.WriteLine(e);
}
finally
{
sem.Release();
}
});
StateHasChanged();
}
}
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