public async Task FunctionHandlerAsync(UnpackZipIntoS3BucketRequest request, ILambdaContext context)
{
try
{
context.Logger.Log("UnpackZipIntoS3BucketFunction invoked: " + JsonConvert.SerializeObject(request));
if (request.RequestType != "Delete")
{
using (var zipStream = await S3Client.GetObjectStreamAsync(request.ResourceProperties.ZipS3Bucket, request.ResourceProperties.ZipS3Key, null))
{
using (var zipArchive = new ZipArchive(zipStream))
{
foreach (var entry in zipArchive.Entries)
{
using (var entryStream = entry.Open())
{
using (var ms = new MemoryStream())
{
entryStream.CopyTo(ms);
await S3Client.PutObjectAsync(new Amazon.S3.Model.PutObjectRequest
{
BucketName = request.ResourceProperties.OutputS3Bucket,
Key = Path.Combine(request.ResourceProperties.OutputPrefix ?? "", entry.FullName),
InputStream = ms
});
}
}
}
}
}
}
await CloudFormationResponse.CompleteCloudFormation(null, request, context);
}
catch (Exception ex)
{
await CloudFormationResponse.FailCloudFormation(ex, request, context);
throw;
}
}
public async Task FunctionHandlerAsync(InvalidateCloudFrontRequest request, ILambdaContext context)
{
try
{
context.Logger.Log("InvalidateCloudFrontFunction invoked: " + JsonConvert.SerializeObject(request));
if (request.RequestType != "Delete")
{
if (string.IsNullOrWhiteSpace(request.ResourceProperties.DistributionId))
{
throw new ArgumentException($"Missing or empty ResourceProperties.DistributionId");
}
if (request.ResourceProperties.Paths == null || !request.ResourceProperties.Paths.Any())
{
throw new ArgumentException($"Missing or empty ResourceProperties.Paths");
}
await CloudFrontClient.CreateInvalidationAsync(new CreateInvalidationRequest
{
DistributionId = request.ResourceProperties.DistributionId,
InvalidationBatch = new InvalidationBatch
{
CallerReference = request.ResourceProperties.CallerReference,
Paths = new Paths
{
Quantity = request.ResourceProperties.Paths.Count,
Items = request.ResourceProperties.Paths
}
}
});
}
await CloudFormationResponse.CompleteCloudFormation(null, request, context);
}
catch (Exception ex)
{
await CloudFormationResponse.FailCloudFormation(ex, request, context);
throw;
}
}
private static async Task ProcessCloudFormationResponse(CloudFormationResponse response, CloudFormationRequest request, ILambdaContext context)
{
try
{
var jsonPayload = JsonConvert.SerializeObject(response);
context.Logger.Log($"ProcessCloudFormationResponse: {jsonPayload}");
var client = new HttpClient();
var jsonContent = new StringContent(jsonPayload);
jsonContent.Headers.Remove("Content-Type");
var postResponse = await client.PutAsync(request.ResponseURL, jsonContent);
postResponse.EnsureSuccessStatusCode();
}
catch (Exception ex)
{
context.Logger.Log("Exception in ProcessCloudFormationResponse: " + ex.ToString());
}
}
public async Task FunctionHandlerAsync(DeployLambdaEdgeRequest request, ILambdaContext context)
{
try
{
context.Logger.Log("LambdaEdgeFunction invoked: " + JsonConvert.SerializeObject(request));
if (string.IsNullOrWhiteSpace(request.RequestType))
{
throw new ArgumentException($"Missing or empty RequestType");
}
string lambdaVersionedArn = null;
if (request.RequestType == "Create" || request.RequestType == "Update")
{
if (string.IsNullOrWhiteSpace(request.ResourceProperties.RoleArn))
{
throw new ArgumentException($"Missing or empty ResourceProperties.RoleArn");
}
if (string.IsNullOrWhiteSpace(request.ResourceProperties.FunctionName))
{
throw new ArgumentException($"Missing or empty ResourceProperties.FunctionName");
}
if (string.IsNullOrWhiteSpace(request.ResourceProperties.EmbeddedFileName))
{
throw new ArgumentException($"Missing or empty ResourceProperties.EmbeddedFileName");
}
Stream lambdaEdgeJsFile = GetLambdaEdgeMemoryStreamFromAssembly(request);
MemoryStream zipFile = AddFileStreamToZipAndReturnZipStream(lambdaEdgeJsFile, request.ResourceProperties.EmbeddedFileName);
if (request.RequestType == "Create")
{
var createResponse = await LambdaClient.CreateFunctionAsync(new CreateFunctionRequest
{
FunctionName = request.ResourceProperties.FunctionName,
Handler = $"{Path.GetFileNameWithoutExtension(request.ResourceProperties.EmbeddedFileName)}.handler",
Code = new FunctionCode()
{
ZipFile = zipFile
},
Runtime = Runtime.Nodejs610,
Publish = true,
Role = request.ResourceProperties.RoleArn
});
request.PhysicalResourceId = createResponse.FunctionArn;
lambdaVersionedArn = $"{createResponse.FunctionArn}:{createResponse.Version}";
}
else if (request.RequestType == "Update")
{
if (request.PhysicalResourceId.StartsWith("arn:aws:lambda:"))
{
var updateResponse = await LambdaClient.UpdateFunctionCodeAsync(new UpdateFunctionCodeRequest
{
FunctionName = $"{request.PhysicalResourceId}",
ZipFile = zipFile,
Publish = true,
});
// The FunctionArn sometimes returns the version in it
if (updateResponse.FunctionArn.EndsWith(updateResponse.Version))
{
lambdaVersionedArn = $"{updateResponse.FunctionArn}";
}
else
{
lambdaVersionedArn = $"{updateResponse.FunctionArn}:{updateResponse.Version}";
}
}
else
{
context.Logger.LogLine("PhysicalResourceId was not a lambda resource on UPDATE, skipping update command");
}
}
}
else if (request.RequestType == "Delete")
{
if (request.PhysicalResourceId.StartsWith("arn:aws:lambda:"))
{
var updateResponse = await LambdaClient.DeleteFunctionAsync(new DeleteFunctionRequest
{
FunctionName = $"{request.PhysicalResourceId}"
});
}
else
{
context.Logger.LogLine("PhysicalResourceId was not a lambda resource on DELETE, skipping remove command");
}
}
await CloudFormationResponse.CompleteCloudFormation(new { LambdaVersionedArn = lambdaVersionedArn }, request, context);
}
catch (Exception ex)
{
await CloudFormationResponse.FailCloudFormation(ex, request, context);
throw;
}
}