/// <summary>
/// Submit HTTP Request
/// </summary>
/// <remarks>
/// Submit an HTTP request.
/// </remarks>
/// <param name="method">HTTP Method. for example "POST", "GET"</param>
/// <param name="URL">URL to send HTTP Request to</param>
/// <param name="postdata">Data to be posted</param>
/// <param name="usr">Username</param>
/// <param name="pwd">Password</param>
/// <returns>Response in plain text.</returns>
public string SubmitHttpRequest(string method, string URL, string postdata, string usr, string pwd)
{
String responseText = "";
HttpWebRequest request;
Uri uri = new Uri(URL);
request = (HttpWebRequest)WebRequest.Create(uri);
request.AllowAutoRedirect = true;
ClientCertRequest.handleClientCert(request, URL);
if(method.Equals("SOAP")){
request.Method = "POST";
request.Headers.Add("SOAPAction: Some-URI");
request.ContentType = "text/xml; charset=UTF-8";
}
else if (method.Equals("DOWNLOAD"))
{
request.Method = "GET";
}
else{
request.ContentType = "text/xml; charset=UTF-8";
request.Method = method;
}
// Credential and cookies
request.CookieContainer = _cookieContainer;
NetworkCredential nc = null;
String authType = "Negotiate";
if (_credentialCache.GetCredential(uri, authType) == null && _credentialCache.GetCredential(uri, "Basic") == null)
{
if (!String.IsNullOrEmpty(usr) && !String.IsNullOrEmpty(pwd))
{
nc = new NetworkCredential(usr, pwd);
_credentialCache.Add(uri, "Basic", nc);
_credentialCache.Add(uri, authType, nc);
}
else{
nc = System.Net.CredentialCache.DefaultNetworkCredentials;
_credentialCache.Add(uri, authType, nc);
}
}
request.Credentials = _credentialCache;
// post data
if (request.Method.Equals("POST", StringComparison.OrdinalIgnoreCase))
{
UTF8Encoding encoding = new UTF8Encoding();
Byte[] byteTemp = encoding.GetBytes(postdata);
request.ContentLength = byteTemp.Length;
Stream requestStream = request.GetRequestStream();
requestStream.Write(byteTemp, 0, byteTemp.Length);
requestStream.Close();
}
HttpWebResponse response = null;
try{
response = (HttpWebResponse)request.GetResponse();
}
catch (UnauthorizedAccessException ua)
{
/*if (ua is CryptographicException)
{
// handle client certificate
ClientCertRequest.handleClientCert(request, URL);
response = (HttpWebResponse)request.GetResponse();
retryAttempt = false;
}*/
if (retryAttempt)
{
PromptCredentials pc = new PromptCredentials();
pc.ShowDialog();
retryAttempt = false;
try
{
_credentialCache.Remove(uri, "Basic");
}
catch (Exception) { };
_credentialCache.Remove(uri, authType);
if (!String.IsNullOrEmpty(pc.Username) && !String.IsNullOrEmpty(pc.Password))
return SubmitHttpRequest(method, URL, postdata, pc.Username, pc.Password);
else
return null;
}
else
{
retryAttempt = true;
throw ua;
}
}
catch (WebException we)
{
/* if (we is CryptographicException)
{
// handle client certificate
ClientCertRequest.handleClientCert(request, URL);
response = (HttpWebResponse)request.GetResponse();
retryAttempt = false;
}*/
if (retryAttempt)
{
PromptCredentials pc = new PromptCredentials();
pc.ShowDialog();
retryAttempt = false;
try
{
_credentialCache.Remove(uri, "Basic");
}catch(Exception){};
_credentialCache.Remove(uri, authType);
if (!String.IsNullOrEmpty(pc.Username) && !String.IsNullOrEmpty(pc.Password))
return SubmitHttpRequest(method, URL, postdata, pc.Username, pc.Password);
else
return null;
}
else
{
retryAttempt = true;
throw we;
}
}
if (_cookieContainer.GetCookies(uri) == null)
{
_cookieContainer.Add(uri, response.Cookies);
}
Stream responseStream = response.GetResponseStream();
if (method.Equals("DOWNLOAD"))
{
FileStream file = null;
string fileName = response.GetResponseHeader("Content-Disposition");
string[] s = null;
if (fileName.ToLower().EndsWith(".tif"))
{
s = URL.Split(new String[] { "coverage=" }, 100, StringSplitOptions.RemoveEmptyEntries);
s[1] = s[1].Trim() + ".tif";
}
else
{
s = fileName.Split('=');
s[1] = s[1].Replace('\\', ' ');
s[1] = s[1].Replace('"', ' ');
s[1] = s[1].Trim();
}
try
{
downloadFileName = System.IO.Path.Combine(Utils.GetSpecialFolderPath(SpecialFolder.ConfigurationFiles), s[1]);
System.IO.File.Delete(downloadFileName);
file = System.IO.File.Create(downloadFileName);
// Buffer to read 10K bytes in chunk:
byte[] buffer = new Byte[10000];
int length = 10000;
int offset = 0;
while (length > 0)
{
length = responseStream.Read(buffer, 0, length);
offset += length;
file.Write(buffer, 0, length);
}
}
catch (Exception e)
{}
finally
{
if(file != null)
file.Close();
if(responseStream != null)
responseStream.Close();
retryAttempt = true;
}
return downloadFileName;
}
StreamReader reader = new StreamReader(responseStream);
responseText = reader.ReadToEnd();
reader.Close();
responseStream.Close();
return responseText;
}
/// <summary>
/// Submit HTTP Request
/// </summary>
/// <remarks>
/// Submit an HTTP request.
/// </remarks>
/// <param name="method">HTTP Method. for example "POST", "GET"</param>
/// <param name="URL">URL to send HTTP Request to</param>
/// <param name="postdata">Data to be posted</param>
/// <param name="usr">Username</param>
/// <param name="pwd">Password</param>
/// <returns>Response in plain text.</returns>
public string SubmitHttpRequest(string method, string URL, string postdata, string usr, string pwd)
{
String responseText = "";
HttpWebRequest request;
Uri uri = new Uri(URL);
request = (HttpWebRequest)WebRequest.Create(uri);
request.AllowAutoRedirect = true;
if (method.Equals("SOAP"))
{
request.Method = "POST";
request.Headers.Add("SOAPAction: Some-URI");
request.ContentType = "text/xml; charset=UTF-8";
}
else if (method.Equals("DOWNLOAD"))
{
request.Method = "GET";
}
else
{
request.ContentType = "text/xml; charset=UTF-8";
request.Method = method;
}
// Credential and cookies
request.CookieContainer = _cookieContainer;
NetworkCredential nc = null;
String authType = "Negotiate";
if (_credentialCache.GetCredential(uri, authType) == null && _credentialCache.GetCredential(uri, "Basic") == null)
{
if (!String.IsNullOrEmpty(usr) && !String.IsNullOrEmpty(pwd))
{
nc = new NetworkCredential(usr, pwd);
_credentialCache.Add(uri, "Basic", nc);
_credentialCache.Add(uri, authType, nc);
}
else
{
nc = System.Net.CredentialCache.DefaultNetworkCredentials;
_credentialCache.Add(uri, authType, nc);
}
}
request.Credentials = _credentialCache;
// post data
if (request.Method.Equals("POST", StringComparison.OrdinalIgnoreCase))
{
UTF8Encoding encoding = new UTF8Encoding();
Byte[] byteTemp = encoding.GetBytes(postdata);
request.ContentLength = byteTemp.Length;
Stream requestStream = request.GetRequestStream();
requestStream.Write(byteTemp, 0, byteTemp.Length);
requestStream.Close();
}
HttpWebResponse response = null;
try{
response = (HttpWebResponse)request.GetResponse();
}
catch (UnauthorizedAccessException ua)
{
if (retryAttempt)
{
PromptCredentials pc = new PromptCredentials();
pc.ShowDialog();
retryAttempt = false;
try
{
_credentialCache.Remove(uri, "Basic");
}
catch (Exception) { };
_credentialCache.Remove(uri, authType);
if (!String.IsNullOrEmpty(pc.Username) && !String.IsNullOrEmpty(pc.Password))
{
return(SubmitHttpRequest(method, URL, postdata, pc.Username, pc.Password));
}
else
{
return(null);
}
}
else
{
retryAttempt = true;
throw ua;
}
}
catch (WebException we)
{
if (retryAttempt)
{
PromptCredentials pc = new PromptCredentials();
pc.ShowDialog();
retryAttempt = false;
try
{
_credentialCache.Remove(uri, "Basic");
}catch (Exception) {};
_credentialCache.Remove(uri, authType);
if (!String.IsNullOrEmpty(pc.Username) && !String.IsNullOrEmpty(pc.Password))
{
return(SubmitHttpRequest(method, URL, postdata, pc.Username, pc.Password));
}
else
{
return(null);
}
}
else
{
retryAttempt = true;
throw we;
}
}
if (_cookieContainer.GetCookies(uri) == null)
{
_cookieContainer.Add(uri, response.Cookies);
}
Stream responseStream = response.GetResponseStream();
if (method.Equals("DOWNLOAD"))
{
FileStream file = null;
string fileName = response.GetResponseHeader("Content-Disposition");
string[] s = null;
if (fileName.ToLower().EndsWith(".tif"))
{
s = URL.Split(new String[] { "coverage=" }, 100, StringSplitOptions.RemoveEmptyEntries);
s[1] = s[1].Trim() + ".tif";
}
else
{
s = fileName.Split('=');
s[1] = s[1].Replace('\\', ' ');
s[1] = s[1].Replace('"', ' ');
s[1] = s[1].Trim();
}
try
{
downloadFileName = System.IO.Path.Combine(Utils.GetSpecialFolderPath(SpecialFolder.ConfigurationFiles), s[1]);
System.IO.File.Delete(downloadFileName);
file = System.IO.File.Create(downloadFileName);
// Buffer to read 10K bytes in chunk:
byte[] buffer = new Byte[10000];
int length = 10000;
int offset = 0;
while (length > 0)
{
length = responseStream.Read(buffer, 0, length);
offset += length;
file.Write(buffer, 0, length);
}
}
catch (Exception e)
{}
finally
{
if (file != null)
{
file.Close();
}
if (responseStream != null)
{
responseStream.Close();
}
retryAttempt = true;
}
return(downloadFileName);
}
StreamReader reader = new StreamReader(responseStream);
responseText = reader.ReadToEnd();
reader.Close();
responseStream.Close();
return(responseText);
}
