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WasmAppHost: block port# 5060 and 5061, for the webserver #76485

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Merged
merged 5 commits into from
Oct 4, 2022
Merged

WasmAppHost: block port# 5060 and 5061, for the webserver #76485

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block port# 5060 and 5061
kasperk81 Oct 1, 2022
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do-while
kasperk81 Oct 1, 2022
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kasperk81 Oct 3, 2022
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kasperk81 Oct 3, 2022
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kasperk81 Oct 3, 2022
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17 changes: 16 additions & 1 deletion src/mono/wasm/host/WebServerStartup.cs
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Original file line number Diff line number Diff line change
Expand Up @@ -38,7 +38,11 @@ public static int StartDebugProxy(string devToolsHost)
//on managed code will freeze because it will not be able to continue executing the BrowserDebugProxy to get the locals value
var executablePath = Path.Combine(System.AppContext.BaseDirectory, "BrowserDebugHost.dll");
var ownerPid = Environment.ProcessId;
var generateRandomPort = new Random().Next(5000, 5300);
// generate a random port in a given range, skipping the ports blocked by browsers: https://chromestatus.com/feature/5064283639513088
var generateRandomPort = GetNextRandomExcept(5000..5300,
5060, // SIP
5061 // SIPS
);
var processStartInfo = new ProcessStartInfo
{
FileName = "dotnet" + (RuntimeInformation.IsOSPlatform(OSPlatform.Windows) ? ".exe" : ""),
Expand All @@ -52,6 +56,17 @@ public static int StartDebugProxy(string devToolsHost)
throw new InvalidOperationException("Unable to start debug proxy process.");
}
return generateRandomPort;

static int GetNextRandomExcept(Range range, params int[] except)
{
int current;
do
{
current = Random.Shared.Next(range.Start.Value, range.End.Value);
} while (Array.IndexOf(except, current) > -1);

return current;
}
}

public void Configure(IApplicationBuilder app,
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