private void ValidateRequest(Ec2Request parms)
{
if (!IsNullRequest(parms))
{
if (!AwsServices.IsValidRegion(parms.Region))
{
throw new Exception("AWS region is not valid.");
}
if (!IsValidCloudEnvironment(parms.CloudEnvironment))
{
throw new Exception("Cloud environment can not be found.");
}
if (!IsValidAction(parms.Action))
{
throw new Exception("Request action is not valid.");
}
if (!SetReturnFormat(parms.ReturnFormat))
{
throw new Exception("Valid return formats are json, xml or yaml.");
}
if (!Utilities.IsValidXml(parms.Xslt))
{
throw new Exception("XSLT is not well-formed.");
}
}
else
{
throw new Exception("No parameter is found in the request.");
}
}
private void ProcessInstanceMissingTagsRequest(Ec2Request parms, bool isDryRun = false)
{
List <Ec2Instance> resultInstances = new List <Ec2Instance>();
try
{
string profile;
_config.AwsEnvironmentProfile.TryGetValue(parms.CloudEnvironment, out profile);
List <Instance> instances = AwsServices.DescribeEc2Instances(null, parms.Region, profile);
foreach (Instance instance in instances)
{
if (HasMissingTags(instance.Tags, parms.MissingTags))
{
Ec2Instance mappedInstance = Mapper.Map <Instance, Ec2Instance>(instance);
resultInstances.Add(mappedInstance);
}
}
}
catch (Exception ex)
{
_response.Summary = (isDryRun ? "Dry run has been completed. " : "") + ex.Message;
_encounteredFailure = true;
}
_response.Ec2Instances = resultInstances;
_response.Count = resultInstances.Count;
}
private bool IsNullRequest(Ec2Request parms)
{
bool isNull = true;
if (parms != null)
{
isNull = parms.GetType().GetProperties().All(p => p.GetValue(parms) == null);
}
return(isNull);
}
private void GetFilteredInstances(Ec2Request parms)
{
string profile;
_config.AwsEnvironmentProfile.TryGetValue(parms.CloudEnvironment, out profile);
List <Instance> instances = AwsServices.DescribeEc2Instances(parms.Filters, parms.Region, profile);
List <Ec2Instance> resultInstances = Mapper.Map <List <Instance>, List <Ec2Instance> >(instances);
_response.Ec2Instances = resultInstances;
_response.Count = resultInstances.Count;
}
public override ExecuteResult Execute(HandlerStartInfo startInfo)
{
string message;
string xslt = "";
try
{
message = "Deserializing incoming request...";
UpdateProgress(message, StatusType.Initializing);
Ec2Request parms = DeserializeOrNew <Ec2Request>(startInfo.Parameters);
message = "Processing request...";
UpdateProgress(message, StatusType.Running);
ValidateRequest(parms);
xslt = parms.Xslt;
GetFilteredInstances(parms);
message = "Querying against AWS has been processed" + (_encounteredFailure ? " with error" : "") + ".";
UpdateProgress(message, _encounteredFailure ? StatusType.CompletedWithErrors : StatusType.Success);
_response.Summary = message;
_response.ExitCode = _encounteredFailure ? -1 : 0;
}
catch (Exception ex)
{
UpdateProgress(ex.Message, StatusType.Failed);
_encounteredFailure = true;
_response.Summary = ex.Message;
_response.ExitCode = -1;
}
finally
{
message = "Serializing response...";
UpdateProgress(message);
try
{
string xmlResponse = Utilities.SerializeXmlResponse(_response);
string transformedXml = Utilities.TransformXml(xmlResponse, xslt);
string serializedData = Utilities.SerializeTargetFormat(transformedXml, _returnFormat);
_result.ExitData = serializedData;
}
catch (Exception ex)
{
_result.ExitData = ex.Message;
}
}
return(_result);
}
private bool IsValidFilters(Ec2Request request)
{
bool isValid = false;
if (request.RequestType == "instance-uptime")
{
isValid = IsValidInstanceUptimeFilter(request.Uptime);
}
if (request.RequestType == "missing-tags")
{
if (request.MissingTags != null)
{
isValid = request.MissingTags.Count > 0;
}
}
return(isValid);
}