/// <summary>
/// Retrieves the contents of a specified URL in response to a request.
/// </summary>
/// <param name="url"></param>
/// <param name="logIn"></param>
/// <returns></returns>
public string GetFromUrl(string url, bool logIn)
{
string username = String.Empty;
string password = String.Empty;
url = HttpHelper.GetHTTPAuthenticationInfo(url, out username, out password);
#if DEBUG
MyLogger.Write(String.Format("Start HttpGet from {0}", url), "GetFromUrl", LoggingCategory.General);
#endif
// 1. Create the Web Request Object
HttpWebRequest request = (HttpWebRequest)HttpWebRequest.Create(url);
request.Headers.Add("Accept-Charset", "ISO-8859-1,utf-8");
//httpauthentication
byte[] credentialBuffer = new UTF8Encoding().GetBytes(
username + ":" +
password);
request.Headers["Authorization"] = "Basic " + Convert.ToBase64String(credentialBuffer);
CookieContainer cc = new CookieContainer();
string htmlContent = string.Empty;
try
{
CookieCollection cCollection = cookieManager.GetCookieCollectionByUserId(_userID);
if (cCollection != null)
{
cc.Add(cCollection);
}
else
{
cc.Add(new CookieCollection());
}
this.LogCookieCollection(cc.GetCookies(request.RequestUri));
request.CookieContainer = cc;
htmlContent = RetrieveFromUrl(request, logIn, this._charset);
}
catch (Exception ex)
{
MyLogger.Write(ex, "GetFromUrl", LoggingCategory.Exception);
throw ex;
}
finally {
#if DEBUG
MyLogger.Write(String.Format("Complete HttpGet from {0}", url), "GetFromUrl", LoggingCategory.General);
#endif
}
return(htmlContent);
}
/// <summary>
/// Forces a POST of data to a specified URL.
/// A HTTP POST is a combination of a write to the Web Server
/// and an immediate read from the Web server.
/// </summary>
/// <param name="url"></param>
/// <param name="data"></param>
/// <param name="logIn"></param>
/// <returns></returns>
public string PostToUrl(string url, string data, bool logIn)
{
string username = String.Empty;
string password = String.Empty;
url = HttpHelper.GetHTTPAuthenticationInfo(url, out username, out password);
// Create the Web Request Object
HttpWebRequest request = (HttpWebRequest)HttpWebRequest.Create(url);
// Specify that you want to POST data
request.Method = "POST";
request.ContentType = "application/x-www-form-urlencoded";
request.Headers.Add("Accept-Charset", "ISO-8859-1,utf-8");
//httpauthentication
byte[] credentialBuffer = new UTF8Encoding().GetBytes(
username + ":" +
password);
request.Headers["Authorization"] = "Basic " + Convert.ToBase64String(credentialBuffer);
CookieContainer cc = new CookieContainer();
CookieCollection cCollection = cookieManager.GetCookieCollectionByUserId(_userID);
if (cCollection != null)
{
cc.Add(cCollection);
}
else
{
cc.Add(new CookieCollection());
}
request.CookieContainer = cc;
this.LogCookieCollection(cc.GetCookies(request.RequestUri));
if (url != null)
{
// write out the data to the web server
WriteToUrl(request, data);
}
else
{
request.ContentLength = 0;
}
// read the response from the Web Server
string htmlContent = RetrieveFromUrl(request, logIn, this._charset);
return(htmlContent);
}
/// <summary>
/// Retrieves the contents of a specified URL in response to a request.
/// </summary>
/// <param name="url"></param>
/// <param name="logIn"></param>
/// <returns></returns>
public string GetFromUrl(string url, bool doLogOn, int timeout)
{
string username = String.Empty;
string password = String.Empty;
HttpHelper.GetHTTPAuthenticationInfo(url, out username, out password);
// 1. Create the Web Request Object
HttpWebRequest request = (HttpWebRequest)HttpWebRequest.Create(url);
request.Timeout = timeout;
request.Headers.Add("Accept-Charset", "ISO-8859-1,utf-8");
//httpauthentication
byte[] credentialBuffer = new UTF8Encoding().GetBytes(
username + ":" +
password);
request.Headers["Authorization"] = "Basic " + Convert.ToBase64String(credentialBuffer);
CookieContainer cc = new CookieContainer();
string htmlContent = string.Empty;
try
{
CookieCollection cCollection = cookieManager.GetCookieCollectionByUserId(_userID);
if (cCollection != null)
{
cc.Add(cCollection);
}
else
{
cc.Add(new CookieCollection());
}
this.LogCookieCollection(cc.GetCookies(request.RequestUri));
request.CookieContainer = cc;
htmlContent = RetrieveFromUrl(request, doLogOn, this._charset);
}
catch { }
return(htmlContent);
}
/// <summary>
/// Transmits a file to the web server stated in the
/// URL property. You may call this several times and it
/// will use the values previously set for fields and URL.
/// </summary>
/// <param name="aFilename">The full path of file being
///transfered.</param>
public void SendFile(string fileName)
{
System.IO.Stream io = null;
try
{
// The live of this object is only good during
// this function. Used mainly to avoid passing
// around parameters to other functions.
string username = String.Empty;
string password = String.Empty;
Url = HttpHelper.GetHTTPAuthenticationInfo(Url, out username, out password);
coRequest = (HttpWebRequest)WebRequest.Create(Url);
//httpauthentication
byte[] credentialBuffer = new UTF8Encoding().GetBytes(
username + ":" +
password);
coRequest.Headers["Authorization"] = "Basic " + Convert.ToBase64String(credentialBuffer);
// Set use HTTP 1.0 or 1.1.
coRequest.ProtocolVersion = TransferHttpVersion;
coRequest.Method = "POST";
coRequest.ContentType = "multipart/form-data; boundary=" + BeginBoundary;
coRequest.Headers.Add("Cache-Control", "no-cache");
coRequest.Headers.Add("Accept-Charset", "ISO-8859-1,utf-8");
coRequest.Accept = "text/xml,application/xml,application/xhtml+xml,text/html;q=0.9,text/plain;q=0.8,image/png,*/*;q=0.5";
coRequest.KeepAlive = true;
string strFields = GetFormFields();
string strFileHdr = GetFileHeader(fileName);
string strFileTlr = GetFileTrailer();
if (!String.IsNullOrEmpty(fileName))
{
FileInfo info = new FileInfo(fileName);
coRequest.ContentLength = strFields.Length + strFileHdr.Length + strFileTlr.Length + info.Length;
}
else
{
coRequest.ContentLength = strFields.Length + strFileHdr.Length + strFileTlr.Length;
}
io = GetStream();
WriteString(io, strFields);
WriteString(io, strFileHdr);
if (!String.IsNullOrEmpty(fileName))
{
this.WriteFile(io, fileName);
}
WriteString(io, strFileTlr);
GetResponse();
}
catch (Exception)
{
throw;
}
finally
{
if (io != null)
{
io.Close();
}
// End the life time of this request object.
coRequest = null;
}
}
/// <summary>
/// It is a regulary POST, without a response.
/// Used for optimizing code.
/// </summary>
/// <param name="url"></param>
/// <param name="data"></param>
/// <param name="logIn"></param>
public HttpWebResponse PostToUrlWhenLogOn(string url, string data, bool logIn)
{
HttpWebResponse response = null;
try
{
#if DEBUG
System.Diagnostics.Stopwatch watch = System.Diagnostics.Stopwatch.StartNew();
#endif
string username = String.Empty;
string password = String.Empty;
url = HttpHelper.GetHTTPAuthenticationInfo(url, out username, out password);
// Create the Web Request Object
HttpWebRequest request = (HttpWebRequest)HttpWebRequest.Create(url);
// Specify that you want to POST data
request.Method = "POST";
request.ContentType = "application/x-www-form-urlencoded";
request.Headers.Add("Accept-Charset", "ISO-8859-1,utf-8;q=0.7,*;q=0.7");
request.Accept = "text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8";
//httpauthentication
byte[] credentialBuffer = new UTF8Encoding().GetBytes(
username + ":" +
password);
request.Headers["Authorization"] = "Basic " + Convert.ToBase64String(credentialBuffer);
CookieContainer cc = new CookieContainer();
cc.Add(new CookieCollection());
request.CookieContainer = cc;
if (url != null)
{
// write out the data to the web server
WriteToUrl(request, data);
}
else
{
request.ContentLength = 0;
}
// Get the Web Response Object from the request
response = (HttpWebResponse)request.GetResponse();
#if DEBUG
watch.Stop();
MyLogger.Write(request.RequestUri + " took " + watch.ElapsedMilliseconds.ToString(), "PostToUrlWhenLogOn", LoggingCategory.Debug);
#endif
return(response);
}
catch (Exception ex)
{
MyLogger.Write(ex.Message, "PostToUrlWhenLogOn", LoggingCategory.Exception);
throw ex;
}
}