private bool IsLatestPendingDeployment(HttpRequestMessage request, string id, out DeployResult pending, out DeployResult latest)
{
latest = null;
if (string.Equals(Constants.LatestDeployment, id))
{
if (ScmHostingConfigurations.GetLatestDeploymentOptimized &&
(ArmUtils.IsAzureResourceManagerUserAgent(request) || ArmUtils.IsVSTSDevOpsUserAgent(request)) &&
_deploymentLock.IsHeld)
{
pending = DeployResult.PendingResult;
return(true);
}
using (_tracer.Step("DeploymentService.GetLatestDeployment"))
{
var results = _deploymentManager.GetResults();
pending = results.Where(r => r.Status != DeployStatus.Success && r.Status != DeployStatus.Failed).FirstOrDefault();
if (pending != null)
{
_tracer.Trace("Deployment {0} is {1}", pending.Id, pending.Status);
return(true);
}
latest = results.Where(r => r.EndTime != null).OrderBy(r => r.EndTime.Value).LastOrDefault();
if (latest != null)
{
_tracer.Trace("Deployment {0} is {1} at {2}", latest.Id, latest.Status, latest.EndTime.Value.ToString("o"));
}
else
{
_tracer.Trace("Could not find latest deployment!");
}
}
}
pending = null;
return(false);
}
private bool TryGetCachedLatestDeployment(EntityTagHeaderValue latestEtag, out HttpResponseMessage cachedResponse)
{
cachedResponse = null;
var cachedLatestDeployment = _cachedLatestDeployment;
if (latestEtag != null &&
cachedLatestDeployment != null &&
!cachedLatestDeployment.Expired &&
latestEtag.Equals(cachedLatestDeployment.Etag) &&
(ArmUtils.IsAzureResourceManagerUserAgent(Request) || ArmUtils.IsVSTSDevOpsUserAgent(Request)))
{
var result = cachedLatestDeployment.Result;
switch (result.Status)
{
case DeployStatus.Building:
case DeployStatus.Deploying:
case DeployStatus.Pending:
cachedResponse = Request.CreateResponse(HttpStatusCode.Accepted, ArmUtils.AddEnvelopeOnArmRequest(result, Request));
cachedResponse.Headers.Location = GetResponseLocation(Request);
cachedResponse.Headers.RetryAfter = new RetryConditionHeaderValue(TimeSpan.FromSeconds(ScmHostingConfigurations.ArmRetryAfterSeconds));
break;
case DeployStatus.Failed:
case DeployStatus.Success:
cachedResponse = Request.CreateResponse(HttpStatusCode.OK, ArmUtils.AddEnvelopeOnArmRequest(result, Request));
break;
default:
cachedResponse = null;
break;
}
}
return(cachedResponse != null);
}
public HttpResponseMessage GetResult(string id)
{
using (_tracer.Step("DeploymentService.GetResult"))
{
var latestEtag = (ScmHostingConfigurations.GetLatestDeploymentOptimized && string.Equals(Constants.LatestDeployment, id)) ? GetCurrentEtag(Request) : null;
if (TryGetCachedLatestDeployment(latestEtag, out HttpResponseMessage cachedResponse))
{
return(cachedResponse);
}
if (IsLatestPendingDeployment(Request, id, out DeployResult pending, out DeployResult latest))
{
_cachedLatestDeployment = (latestEtag != null && pending != null) ? new DeploymentCacheItem {
Etag = latestEtag, Result = pending
} : null;
var response = Request.CreateResponse(HttpStatusCode.Accepted, ArmUtils.AddEnvelopeOnArmRequest(pending, Request));
response.Headers.Location = GetResponseLocation(Request);
response.Headers.RetryAfter = new RetryConditionHeaderValue(TimeSpan.FromSeconds(ScmHostingConfigurations.ArmRetryAfterSeconds));
return(response);
}
_cachedLatestDeployment = (latestEtag != null && latest != null) ? new DeploymentCacheItem {
Etag = latestEtag, Result = latest
} : null;
var result = latest ?? _deploymentManager.GetResult(id);
if (result == null)
{
var response = Request.CreateErrorResponse(HttpStatusCode.NotFound, String.Format(CultureInfo.CurrentCulture,
Resources.Error_DeploymentNotFound,
id));
throw new HttpResponseException(response);
}
Uri baseUri = UriHelper.MakeRelative(Request.GetBaseUri(), Request.RequestUri.AbsolutePath);
result.Url = baseUri;
result.LogUrl = UriHelper.MakeRelative(baseUri, "log");
if (ScmHostingConfigurations.GetLatestDeploymentOptimized &&
(result.Status == DeployStatus.Building || result.Status == DeployStatus.Deploying || result.Status == DeployStatus.Pending) &&
(ArmUtils.IsAzureResourceManagerUserAgent(Request) || ArmUtils.IsVSTSDevOpsUserAgent(Request)))
{
var responseMessage = Request.CreateResponse(HttpStatusCode.Accepted, ArmUtils.AddEnvelopeOnArmRequest(result, Request));
responseMessage.Headers.Location = GetResponseLocation(Request);
responseMessage.Headers.RetryAfter = new RetryConditionHeaderValue(TimeSpan.FromSeconds(ScmHostingConfigurations.ArmRetryAfterSeconds));
return(responseMessage);
}
if (ArmUtils.IsArmRequest(Request))
{
switch (result.Status)
{
case DeployStatus.Building:
case DeployStatus.Deploying:
case DeployStatus.Pending:
var responseMessage = Request.CreateResponse(HttpStatusCode.OK, ArmUtils.AddEnvelopeOnArmRequest(result, Request));
responseMessage.Headers.Location = GetResponseLocation(Request);
responseMessage.Headers.RetryAfter = new RetryConditionHeaderValue(TimeSpan.FromSeconds(ScmHostingConfigurations.ArmRetryAfterSeconds));
return(responseMessage);
case DeployStatus.Failed:
case DeployStatus.Success:
break;
default:
return(Request.CreateResponse(HttpStatusCode.BadRequest, ArmUtils.AddEnvelopeOnArmRequest(result, Request)));
}
}
return(Request.CreateResponse(HttpStatusCode.OK, ArmUtils.AddEnvelopeOnArmRequest(result, Request)));
}
}
protected override async Task <HttpResponseMessage> CreateDirectoryPutResponse(DirectoryInfoBase info, string localFilePath)
{
try
{
var isRequestJSON = Request.Content.Headers?.ContentType?.MediaType?.Equals("application/json", StringComparison.OrdinalIgnoreCase);
var targetPath = localFilePath;
var isArmTemplate = false;
JObject requestContent = null;
Uri packageUri = null;
if (isRequestJSON == true)
{
requestContent = await Request.Content.ReadAsAsync <JObject>();
var payload = requestContent;
if (ArmUtils.IsArmRequest(Request))
{
payload = payload.Value <JObject>("properties");
isArmTemplate = ArmUtils.IsAzureResourceManagerUserAgent(Request);
}
var uri = payload?.Value <string>("packageUri");
if (!Uri.TryCreate(uri, UriKind.Absolute, out packageUri))
{
throw new InvalidOperationException($"Payload contains invalid '{uri}' packageUri property");
}
var path = payload?.Value <string>("path");
if (!string.IsNullOrEmpty(path))
{
targetPath = Path.Combine(targetPath, path);
FileSystemHelpers.CreateDirectory(targetPath);
}
}
using (packageUri == null ? Tracer.Step($"Extracting content to {targetPath}")
: Tracer.Step("Extracting content from {0} to {1}", StringUtils.ObfuscatePath(packageUri.AbsoluteUri), targetPath))
{
var content = packageUri == null ? Request.Content
: await DeploymentHelper.GetArtifactContentFromURL(new ArtifactDeploymentInfo(null, null) { RemoteURL = packageUri.AbsoluteUri }, Tracer);
using (var stream = await content.ReadAsStreamAsync())
{
// The unzipping is done over the existing folder, without first removing existing files.
// Hence it's more of a PATCH than a PUT. We should consider supporting both with the right semantic.
// Though a true PUT at the root would be scary as it would wipe all existing files!
var zipArchive = new ZipArchive(stream, ZipArchiveMode.Read);
zipArchive.Extract(targetPath, Tracer);
}
}
if (isArmTemplate && requestContent != null)
{
requestContent.Value <JObject>("properties").Add("provisioningState", "Succeeded");
return(Request.CreateResponse(HttpStatusCode.OK, requestContent));
}
return(Request.CreateResponse(HttpStatusCode.OK));
}
catch (Exception ex)
{
return(ArmUtils.CreateErrorResponse(Request, HttpStatusCode.BadRequest, ex));
}
}