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Added: get head response for HttpWeb

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This commit is contained in:
Ray 2020-01-30 12:35:05 +00:00
parent 51a3dde03e
commit 9de46a158b
1 changed files with 174 additions and 129 deletions
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303
2018/01/httpweb.cs
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@ -6,163 +6,208 @@ using System.Windows.Forms;
namespace RyzStudio.Net namespace RyzStudio.Net
{ {
public class HttpWeb public class HttpWeb
{ {
public string defaultUserAgent = "Momozilla/5.0 (" + Environment.OSVersion.Platform.ToString() + " ; " + Environment.OSVersion.VersionString + "; " + Application.CurrentCulture.TwoLetterISOLanguageName + ")"; public string defaultUserAgent = "Momozilla/5.0 (" + Environment.OSVersion.Platform.ToString() + " ; " + Environment.OSVersion.VersionString + "; " + Application.CurrentCulture.TwoLetterISOLanguageName + ")";
public int defaultTimeout = 6000; public int defaultTimeout = 6000;
public int defaultMaxRedirect = 8; public int defaultMaxRedirect = 8;
public bool defaultAllowRedirect = true; public bool defaultAllowRedirect = true;
public CookieContainer defaultCookierContainer = null; public CookieContainer defaultCookierContainer = null;
public HttpWeb() public HttpWeb()
{ {
} }
public HttpWebRequest CreateRequest(string url) public HttpWebRequest CreateRequest(string requestURL) => this.CreateRequest(requestURL, requestURL);
{
return this.CreateRequest(url, url);
}
public HttpWebRequest CreateRequest(string url, string referrerURL) public HttpWebRequest CreateRequest(string requestURL, string referrerURL)
{ {
if (defaultCookierContainer == null) if (defaultCookierContainer == null)
{ {
defaultCookierContainer = new CookieContainer(); defaultCookierContainer = new CookieContainer();
} }
HttpWebRequest webRequest = (HttpWebRequest)WebRequest.Create(url); HttpWebRequest webRequest = (HttpWebRequest)WebRequest.Create(requestURL);
webRequest.CachePolicy = new System.Net.Cache.RequestCachePolicy(System.Net.Cache.RequestCacheLevel.NoCacheNoStore); webRequest.CachePolicy = new System.Net.Cache.RequestCachePolicy(System.Net.Cache.RequestCacheLevel.NoCacheNoStore);
webRequest.MaximumAutomaticRedirections = defaultMaxRedirect; webRequest.MaximumAutomaticRedirections = defaultMaxRedirect;
webRequest.CookieContainer = defaultCookierContainer; webRequest.CookieContainer = defaultCookierContainer;
webRequest.UserAgent = defaultUserAgent; webRequest.UserAgent = defaultUserAgent;
webRequest.AllowAutoRedirect = defaultAllowRedirect; webRequest.AllowAutoRedirect = defaultAllowRedirect;
webRequest.Timeout = defaultTimeout; webRequest.Timeout = defaultTimeout;
webRequest.Referer = referrerURL;
return webRequest; return webRequest;
} }
public int GetResponse(out string sourceCode, string url, string referrerURL = "") public int GetResponse(out string sourceCode, string requestURL) => this.GetResponse(out sourceCode, this.CreateRequest(requestURL));
{
HttpWebRequest webRequest = this.CreateRequest(url, referrerURL);
return GetResponse(out sourceCode, webRequest); public int GetResponse(out string sourceCode, string requestURL, string referrerURL) => this.GetResponse(out sourceCode, this.CreateRequest(requestURL, referrerURL));
}
public int GetResponse(out string sourceCode, HttpWebRequest webRequest) public int GetResponse(out string sourceCode, HttpWebRequest webRequest)
{ {
sourceCode = string.Empty; sourceCode = string.Empty;
int rv = 0; int rv = 0;
try try
{ {
HttpWebResponse webResponse = (HttpWebResponse)webRequest.GetResponse(); HttpWebResponse webResponse = (HttpWebResponse)webRequest.GetResponse();
rv = (int)webResponse.StatusCode; rv = (int)webResponse.StatusCode;
StreamReader readContent = new StreamReader(webResponse.GetResponseStream()); StreamReader readContent = new StreamReader(webResponse.GetResponseStream());
sourceCode = readContent.ReadToEnd(); sourceCode = readContent.ReadToEnd();
webResponse.Close(); webResponse.Close();
webResponse = null; webResponse = null;
} }
catch (WebException xc) catch (WebException xc)
{ {
if (xc.Response is HttpWebResponse) if (xc.Response is HttpWebResponse)
{ {
HttpWebResponse rs = xc.Response as HttpWebResponse; HttpWebResponse rs = xc.Response as HttpWebResponse;
StreamReader readContent = new StreamReader(rs.GetResponseStream()); StreamReader readContent = new StreamReader(rs.GetResponseStream());
if (readContent != null) if (readContent != null)
{ {
sourceCode = readContent.ReadToEnd(); sourceCode = readContent.ReadToEnd();
} }
rv = (int)rs.StatusCode; rv = (int)rs.StatusCode;
} }
else else
{ {
rv = (int)xc.Status; rv = (int)xc.Status;
sourceCode = xc.Message; sourceCode = xc.Message;
} }
} }
catch (Exception xc) catch (Exception xc)
{ {
sourceCode = xc.Message; sourceCode = xc.Message;
} }
return rv; return rv;
} }
public static HttpWebRequest AddBasicAuthentication(HttpWebRequest webRequest, string username, string password) public int GetResponse(out HttpWebRequest webRequest, out string sourceCode, string requestURL) => this.GetResponse(out webRequest, out sourceCode, requestURL, requestURL, true);
{
webRequest.Headers["Authorization"] = "Basic " + Convert.ToBase64String(Encoding.Default.GetBytes(string.Concat(username, ":", password)));
webRequest.PreAuthenticate = true;
return webRequest; public int GetResponse(out HttpWebRequest webRequest, out string sourceCode, string requestURL, bool allowAutoRedirect) => this.GetResponse(out webRequest, out sourceCode, requestURL, requestURL, allowAutoRedirect);
}
public int GetResponse(out HttpWebRequest webRequest, out string sourceCode, string requestURL, string referrerURL) => this.GetResponse(out webRequest, out sourceCode, requestURL, referrerURL, true);
public int GetPOSTResponse(out string sourceCode, HttpWebRequest webRequest, string postData) public int GetResponse(out HttpWebRequest webRequest, out string sourceCode, string requestURL, string referrerURL, bool allowAutoRedirect)
{ {
sourceCode = ""; webRequest = this.CreateRequest(requestURL, referrerURL);
int rv = 0; webRequest.AllowAutoRedirect = allowAutoRedirect;
byte[] buffer = Encoding.UTF8.GetBytes(postData);
webRequest.ContentLength = buffer.Length; return this.GetResponse(out sourceCode, webRequest);
}
try public int GetHEADResponse(string requestURL) => this.GetHEADResponse(requestURL, requestURL, true);
{
Stream dataStream = webRequest.GetRequestStream();
dataStream.Write(buffer, 0, buffer.Length);
dataStream.Close();
}
catch (Exception xc)
{
sourceCode = xc.Message;
return rv;
}
return this.GetResponse(out sourceCode, webRequest); public int GetHEADResponse(string requestURL, string referrerURL) => this.GetHEADResponse(requestURL, requestURL, true);
}
public int GetHeader(out WebHeaderCollection headerCollection, string url, string referrerURL = "") public int GetHEADResponse(string requestURL, bool allowAutoRedirect) => this.GetHEADResponse(requestURL, requestURL, allowAutoRedirect);
{
headerCollection = null;
int rv = 0; public int GetHEADResponse(string requestURL, string referrerURL, bool allowAutoRedirect)
{
HttpWebRequest webRequest = this.CreateRequest(requestURL, referrerURL);
webRequest.Method = "HEAD";
webRequest.AllowAutoRedirect = allowAutoRedirect;
HttpWebRequest webRequest = this.CreateRequest(url, referrerURL); string sc;
webRequest.Method = "HEAD"; int rc = this.GetResponse(out sc, webRequest);
try return rc;
{ }
HttpWebResponse webResponse = (HttpWebResponse)webRequest.GetResponse();
headerCollection = webResponse.Headers;
rv = (int)webResponse.StatusCode; public int GetHEADResponse(out HttpWebRequest webRequest, string requestURL) => this.GetHEADResponse(out webRequest, requestURL, requestURL, true);
webResponse.Close(); public int GetHEADResponse(out HttpWebRequest webRequest, string requestURL, string referrerURL) => this.GetHEADResponse(out webRequest, requestURL, referrerURL, true);
webResponse = null;
}
catch (WebException xc)
{
if (xc.Response is HttpWebResponse)
{
HttpWebResponse rs = xc.Response as HttpWebResponse;
rv = (int)rs.StatusCode; public int GetHEADResponse(out HttpWebRequest webRequest, string requestURL, bool allowAutoRedirect) => this.GetHEADResponse(out webRequest, requestURL, requestURL, allowAutoRedirect);
}
else
{
rv = (int)xc.Status;
}
}
catch (Exception xc)
{
// do nothing
}
return rv; public int GetHEADResponse(out HttpWebRequest webRequest, string requestURL, string referrerURL, bool allowAutoRedirect)
} {
} webRequest = this.CreateRequest(requestURL, referrerURL);
webRequest.Method = "HEAD";
webRequest.AllowAutoRedirect = allowAutoRedirect;
string sc;
int rc = this.GetResponse(out sc, webRequest);
return rc;
}
public int GetPOSTResponse(out string sourceCode, HttpWebRequest webRequest, string postData)
{
sourceCode = string.Empty;
int rv = 0;
byte[] buffer = Encoding.UTF8.GetBytes(postData);
webRequest.ContentLength = buffer.Length;
try
{
Stream dataStream = webRequest.GetRequestStream();
dataStream.Write(buffer, 0, buffer.Length);
dataStream.Close();
}
catch (Exception xc)
{
sourceCode = xc.Message;
return rv;
}
return this.GetResponse(out sourceCode, webRequest);
}
public int GetHeader(out WebHeaderCollection headerCollection, string url, string referrerURL = "")
{
headerCollection = null;
int rv = 0;
HttpWebRequest webRequest = this.CreateRequest(url, referrerURL);
webRequest.Method = "HEAD";
try
{
HttpWebResponse webResponse = (HttpWebResponse)webRequest.GetResponse();
headerCollection = webResponse.Headers;
rv = (int)webResponse.StatusCode;
webResponse.Close();
webResponse = null;
}
catch (WebException xc)
{
if (xc.Response is HttpWebResponse)
{
HttpWebResponse rs = xc.Response as HttpWebResponse;
rv = (int)rs.StatusCode;
}
else
{
rv = (int)xc.Status;
}
}
catch (Exception xc)
{
// do nothing
}
return rv;
}
public static HttpWebRequest AddBasicAuthentication(HttpWebRequest webRequest, string username, string password)
{
webRequest.Headers["Authorization"] = "Basic " + Convert.ToBase64String(Encoding.Default.GetBytes(string.Concat(username, ":", password)));
webRequest.PreAuthenticate = true;
return webRequest;
}
}
} }