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Add Environment Variable override of telemetry #6063

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merged 4 commits into from
Jan 31, 2018
Merged

Add Environment Variable override of telemetry #6063

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c3e3663
Add Environment Variable override of telemetry
Jan 29, 2018
a54f7dc
Refactor TelemetryOptout constant
Jan 31, 2018
611b05b
Fix coding style
Jan 31, 2018
90c6d8a
Change signature of GetEnvironmentVariableAsBool
Jan 31, 2018
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39 changes: 33 additions & 6 deletions src/Microsoft.PowerShell.ConsoleHost/host/msh/Telemetry.cs
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Original file line number Diff line number Diff line change
Expand Up @@ -21,6 +21,7 @@ internal static class ApplicationInsightsTelemetry
// The name of the file by when present in $PSHOME will enable telemetry.
// If this file is not present, no telemetry will be sent.
private const string TelemetrySemaphoreFilename = "DELETE_ME_TO_DISABLE_CONSOLEHOST_TELEMETRY";
private const string TelemetryOptoutEnvVar = "POWERSHELL_TELEMETRY_OPTOUT";

// The path to the semaphore file which enables telemetry
private static string TelemetrySemaphoreFilePath = Path.Combine(
Expand All @@ -42,6 +43,28 @@ static ApplicationInsightsTelemetry()
TelemetryConfiguration.Active.TelemetryChannel.DeveloperMode = _developerMode;
}

private static bool GetEnvironmentVariableAsBool(string name, bool defaultValue) {
var str = Environment.GetEnvironmentVariable(name);
if (string.IsNullOrEmpty(str))
{
return defaultValue;
}

switch (str.ToLowerInvariant())
{
case "true":
case "1":
case "yes":
return true;
case "false":
case "0":
case "no":
return false;
default:
return defaultValue;
}
}

/// <summary>
/// Send the telemetry
/// </summary>
Expand All @@ -50,14 +73,18 @@ private static void SendTelemetry(string eventName, Dictionary<string,string>pay
try
{
// if the semaphore file exists, try to send telemetry
if (Utils.NativeFileExists(TelemetrySemaphoreFilePath))
var enabled = Utils.NativeFileExists(TelemetrySemaphoreFilePath) && !GetEnvironmentVariableAsBool(TelemetryOptoutEnvVar, false);

if (!enabled)
{
return;
}

if (_telemetryClient == null)
{
if ( _telemetryClient == null )
{
_telemetryClient = new TelemetryClient();
}
_telemetryClient.TrackEvent(eventName, payload, null);
_telemetryClient = new TelemetryClient();
}
_telemetryClient.TrackEvent(eventName, payload, null);
}
catch (Exception)
{
Expand Down