public UserDataService()
{
userDataUrl = ConfigurationManager.AppSettings["user-data-url"];
if (string.IsNullOrEmpty(userDataUrl))
{
userDataUrl = DefaultUserDataUrl;
}
cfnFolder = ConfigurationManager.AppSettings["cfn-folder"];
if (string.IsNullOrEmpty(cfnFolder))
{
cfnFolder = DefaultCfnFolder;
}
stateService = new UserDataState(cfnFolder);
CtxTrace.TraceVerbose("UserData Url {0}, CFN folder {1}", userDataUrl, cfnFolder);
}
/// <summary>
/// Simple "GET" on the specified Url returing the contents as a string. If an error occurs
/// it is logged and the method returns null
/// </summary>
/// <param name="url"></param>
/// <returns></returns>
public static string HttpGet(string url)
{
CtxTrace.TraceVerbose("url={0}", url);
try {
HttpWebRequest request = WebRequest.Create(url) as HttpWebRequest;
request.Method = "GET";
using (HttpWebResponse response = request.GetResponse() as HttpWebResponse) {
using (Stream responseStream = response.GetResponseStream()) {
using (StreamReader streamReader = new StreamReader(responseStream, Encoding.UTF8)) {
return(streamReader.ReadToEnd());
}
}
}
} catch (Exception e) {
CtxTrace.TraceError(e);
return(null);
}
}