private async Task <SiteExtensionInfo> InitInstallSiteExtension(string id, SiteExtensionInfo.SiteExtensionType type)
{
SiteExtensionStatus settings = new SiteExtensionStatus(_environment.SiteExtensionSettingsPath, id, _traceFactory.GetTracer());
settings.ProvisioningState = Constants.SiteExtensionProvisioningStateCreated;
settings.Operation = Constants.SiteExtensionOperationInstall;
settings.Status = HttpStatusCode.Created;
settings.Type = type;
settings.Comment = null;
SiteExtensionInfo info = new SiteExtensionInfo();
info.Id = id;
settings.FillSiteExtensionInfo(info);
return(await Task.FromResult(info));
}
public async Task <HttpResponseMessage> GetLocalExtension(string id, bool checkLatest = true)
{
var tracer = _traceFactory.GetTracer();
SiteExtensionInfo extension = null;
HttpResponseMessage responseMessage = null;
if (ArmUtils.IsArmRequest(Request))
{
tracer.Trace("Incoming GetLocalExtension is arm request.");
SiteExtensionStatus armSettings = new SiteExtensionStatus(_environment.SiteExtensionSettingsPath, id, tracer);
if (string.Equals(Constants.SiteExtensionOperationInstall, armSettings.Operation, StringComparison.OrdinalIgnoreCase))
{
bool isInstallationLockHeld = IsInstallationLockHeldSafeCheck(id);
if (!isInstallationLockHeld &&
string.Equals(Constants.SiteExtensionProvisioningStateSucceeded, armSettings.ProvisioningState, StringComparison.OrdinalIgnoreCase))
{
tracer.Trace("Package {0} was just installed.", id);
extension = await _manager.GetLocalExtension(id, checkLatest);
if (extension == null)
{
using (tracer.Step("Status indicate {0} installed, but not able to find it from local repo.", id))
{
// should NOT happen
extension = new SiteExtensionInfo {
Id = id
};
responseMessage = Request.CreateResponse(HttpStatusCode.NotFound);
// package is gone, remove setting file
await armSettings.RemoveStatus();
}
}
else
{
if (SiteExtensionInstallationLock.IsAnyPendingLock(_environment.SiteExtensionSettingsPath, tracer))
{
using (tracer.Step("{0} finished installation. But there is other installation on-going, fake the status to be Created, so that we can restart once for all.", id))
{
// if there is other pending installation, fake the status
extension.ProvisioningState = Constants.SiteExtensionProvisioningStateCreated;
responseMessage = Request.CreateResponse(HttpStatusCode.Created, ArmUtils.AddEnvelopeOnArmRequest <SiteExtensionInfo>(extension, Request));
}
}
else
{
// it is important to call "SiteExtensionStatus.IsAnyInstallationRequireRestart" before "UpdateArmSettingsForSuccessInstallation"
// since "IsAnyInstallationRequireRestart" is depending on properties inside site extension status files
// while "UpdateArmSettingsForSuccessInstallation" will override some of the values
bool requireRestart = SiteExtensionStatus.IsAnyInstallationRequireRestart(_environment.SiteExtensionSettingsPath, _siteExtensionRoot, tracer, _analytics);
// clear operation, since opeation is done
if (UpdateArmSettingsForSuccessInstallation())
{
using (tracer.Step("{0} finished installation and batch update lock aquired. Will notify Antares GEO to restart website.", id))
{
responseMessage = Request.CreateResponse(armSettings.Status, ArmUtils.AddEnvelopeOnArmRequest <SiteExtensionInfo>(extension, Request));
// Notify GEO to restart website if necessary
if (requireRestart)
{
responseMessage.Headers.Add(Constants.SiteOperationHeaderKey, Constants.SiteOperationRestart);
}
}
}
else
{
tracer.Trace("Not able to aquire batch update lock, there must be another batch update on-going. return Created status to user to let them poll again.");
responseMessage = Request.CreateResponse(HttpStatusCode.Created, ArmUtils.AddEnvelopeOnArmRequest <SiteExtensionInfo>(extension, Request));
}
}
}
}
else if (!isInstallationLockHeld && !armSettings.IsTerminalStatus())
{
// no background thread is working on instalation
// app-pool must be recycled
using (tracer.Step("{0} installation cancelled, background thread must be dead.", id))
{
extension = new SiteExtensionInfo {
Id = id
};
extension.ProvisioningState = Constants.SiteExtensionProvisioningStateCanceled;
responseMessage = Request.CreateResponse(HttpStatusCode.OK, ArmUtils.AddEnvelopeOnArmRequest <SiteExtensionInfo>(extension, Request));
}
}
else
{
// on-going or failed, return status from setting
using (tracer.Step("Installation {0}", armSettings.Status))
{
extension = new SiteExtensionInfo {
Id = id
};
armSettings.FillSiteExtensionInfo(extension);
responseMessage = Request.CreateResponse(armSettings.Status, ArmUtils.AddEnvelopeOnArmRequest <SiteExtensionInfo>(extension, Request));
}
}
}
// normal GET request
if (responseMessage == null)
{
using (tracer.Step("ARM get : {0}", id))
{
extension = await _manager.GetLocalExtension(id, checkLatest);
}
if (extension == null)
{
extension = new SiteExtensionInfo {
Id = id
};
responseMessage = Request.CreateResponse(HttpStatusCode.NotFound);
}
else
{
armSettings.FillSiteExtensionInfo(extension);
responseMessage = Request.CreateResponse(HttpStatusCode.OK, ArmUtils.AddEnvelopeOnArmRequest <SiteExtensionInfo>(extension, Request));
}
}
}
else
{
using (tracer.Step("Get: {0}, is not a ARM request.", id))
{
extension = await _manager.GetLocalExtension(id, checkLatest);
}
if (extension == null)
{
throw new HttpResponseException(Request.CreateErrorResponse(HttpStatusCode.NotFound, id));
}
responseMessage = Request.CreateResponse(HttpStatusCode.OK, extension);
}
return(responseMessage);
}
