internal ServicePoint(Uri address, TimerThread.Queue defaultIdlingQueue, int defaultConnectionLimit, string lookupString, bool userChangedLimit, bool proxyServicePoint)
{
this.m_HostName = string.Empty;
this.m_ProxyServicePoint = proxyServicePoint;
this.m_Address = address;
this.m_ConnectionName = address.Scheme;
this.m_Host = address.DnsSafeHost;
this.m_Port = address.Port;
this.m_IdlingQueue = defaultIdlingQueue;
this.m_ConnectionLimit = defaultConnectionLimit;
this.m_HostLoopbackGuess = TriState.Unspecified;
this.m_LookupString = lookupString;
this.m_UserChangedLimit = userChangedLimit;
this.m_UseNagleAlgorithm = ServicePointManager.UseNagleAlgorithm;
this.m_Expect100Continue = ServicePointManager.Expect100Continue;
this.m_ConnectionGroupList = new Hashtable(10);
this.m_ConnectionLeaseTimeout = -1;
this.m_ReceiveBufferSize = -1;
this.m_UseTcpKeepAlive = ServicePointManager.s_UseTcpKeepAlive;
this.m_TcpKeepAliveTime = ServicePointManager.s_TcpKeepAliveTime;
this.m_TcpKeepAliveInterval = ServicePointManager.s_TcpKeepAliveInterval;
this.m_Understands100Continue = true;
this.m_HttpBehaviour = System.Net.HttpBehaviour.Unknown;
this.m_IdleSince = DateTime.Now;
this.m_ExpiringTimer = this.m_IdlingQueue.CreateTimer(ServicePointManager.IdleServicePointTimeoutDelegate, this);
}
internal ServicePoint(Uri address, TimerThread.Queue defaultIdlingQueue, int defaultConnectionLimit, string lookupString, bool userChangedLimit, bool proxyServicePoint)
{
this.m_HostName = string.Empty;
this.m_ProxyServicePoint = proxyServicePoint;
this.m_Address = address;
this.m_ConnectionName = address.Scheme;
this.m_Host = address.DnsSafeHost;
this.m_Port = address.Port;
this.m_IdlingQueue = defaultIdlingQueue;
this.m_ConnectionLimit = defaultConnectionLimit;
this.m_HostLoopbackGuess = TriState.Unspecified;
this.m_LookupString = lookupString;
this.m_UserChangedLimit = userChangedLimit;
this.m_UseNagleAlgorithm = ServicePointManager.UseNagleAlgorithm;
this.m_Expect100Continue = ServicePointManager.Expect100Continue;
this.m_ConnectionGroupList = new Hashtable(10);
this.m_ConnectionLeaseTimeout = -1;
this.m_ReceiveBufferSize = -1;
this.m_UseTcpKeepAlive = ServicePointManager.s_UseTcpKeepAlive;
this.m_TcpKeepAliveTime = ServicePointManager.s_TcpKeepAliveTime;
this.m_TcpKeepAliveInterval = ServicePointManager.s_TcpKeepAliveInterval;
this.m_Understands100Continue = true;
this.m_HttpBehaviour = System.Net.HttpBehaviour.Unknown;
this.m_IdleSince = DateTime.Now;
this.m_ExpiringTimer = this.m_IdlingQueue.CreateTimer(ServicePointManager.IdleServicePointTimeoutDelegate, this);
}
internal ConnectionPool(System.Net.ServicePoint servicePoint, int maxPoolSize, int minPoolSize, int idleTimeout, CreateConnectionDelegate createConnectionCallback)
{
this.m_CreateConnectionCallback = createConnectionCallback;
this.m_MaxPoolSize = maxPoolSize;
this.m_MinPoolSize = minPoolSize;
this.m_ServicePoint = servicePoint;
this.Initialize();
if (idleTimeout > 0)
{
this.m_CleanupQueue = TimerThread.GetOrCreateQueue((idleTimeout == 1) ? 1 : (idleTimeout / 2));
this.m_CleanupQueue.CreateTimer(s_CleanupCallback, this);
}
}
internal ConnectionPool(System.Net.ServicePoint servicePoint, int maxPoolSize, int minPoolSize, int idleTimeout, CreateConnectionDelegate createConnectionCallback)
{
this.m_CreateConnectionCallback = createConnectionCallback;
this.m_MaxPoolSize = maxPoolSize;
this.m_MinPoolSize = minPoolSize;
this.m_ServicePoint = servicePoint;
this.Initialize();
if (idleTimeout > 0)
{
this.m_CleanupQueue = TimerThread.GetOrCreateQueue((idleTimeout == 1) ? 1 : (idleTimeout / 2));
this.m_CleanupQueue.CreateTimer(s_CleanupCallback, this);
}
}
/// <summary>
/// <para>Constructor - binds pool with a servicePoint and sets up a cleanup Timer to nuke Idle Connections</para>
/// </summary>
internal ConnectionPool(ServicePoint servicePoint, int maxPoolSize, int minPoolSize, int idleTimeout, CreateConnectionDelegate createConnectionCallback) : base()
{
m_State = State.Initializing;
m_CreateConnectionCallback = createConnectionCallback;
m_MaxPoolSize = maxPoolSize;
m_MinPoolSize = minPoolSize;
m_ServicePoint = servicePoint;
Initialize();
if (idleTimeout > 0)
{
m_CleanupQueue = TimerThread.GetOrCreateQueue(idleTimeout / 2);
m_CleanupQueue.CreateTimer(s_CleanupCallback, this);
}
}
/// <summary>
/// <para>Constructor - binds pool with a servicePoint and sets up a cleanup Timer to remove Idle Connections</para>
/// </summary>
internal ConnectionPool(ServicePoint servicePoint, int maxPoolSize, int minPoolSize, int idleTimeout, CreateConnectionDelegate createConnectionCallback) : base()
{
m_State = State.Initializing;
m_CreateConnectionCallback = createConnectionCallback;
m_MaxPoolSize = maxPoolSize;
m_MinPoolSize = minPoolSize;
m_ServicePoint = servicePoint;
Initialize();
if (idleTimeout > 0)
{
// special case: if the timeout value is 1 then the timer thread should have a duration
// of 1 to avoid having the timer callback run constantly
m_CleanupQueue = TimerThread.GetOrCreateQueue(idleTimeout == 1 ? 1 : (idleTimeout / 2));
m_CleanupQueue.CreateTimer(s_CleanupCallback, this);
}
}
internal ServicePoint(string host, int port, TimerThread.Queue defaultIdlingQueue, int defaultConnectionLimit, string lookupString, bool userChangedLimit, bool proxyServicePoint)
{
this.m_HostName = string.Empty;
this.m_ProxyServicePoint = proxyServicePoint;
this.m_ConnectionName = "ByHost:" + host + ":" + port.ToString(CultureInfo.InvariantCulture);
this.m_IdlingQueue = defaultIdlingQueue;
this.m_ConnectionLimit = defaultConnectionLimit;
this.m_HostLoopbackGuess = TriState.Unspecified;
this.m_LookupString = lookupString;
this.m_UserChangedLimit = userChangedLimit;
this.m_ConnectionGroupList = new Hashtable(10);
this.m_ConnectionLeaseTimeout = -1;
this.m_ReceiveBufferSize = -1;
this.m_Host = host;
this.m_Port = port;
this.m_HostMode = true;
this.m_IdleSince = DateTime.Now;
this.m_ExpiringTimer = this.m_IdlingQueue.CreateTimer(ServicePointManager.IdleServicePointTimeoutDelegate, this);
}
internal HttpWebRequest(Uri uri, ServicePoint servicePoint) {
if(Logging.On)Logging.Enter(Logging.Web, this, "HttpWebRequest", uri);
CheckConnectPermission(uri, false);
m_StartTimestamp = NetworkingPerfCounters.GetTimestamp();
NetworkingPerfCounters.Instance.Increment(NetworkingPerfCounterName.HttpWebRequestCreated);
// OOPS, This ctor can also be called with FTP scheme but then it should only allowed if going through the proxy
// Something to think about...
//if ((object)uri.Scheme != (object)Uri.UriSchemeHttp && (object)uri.Scheme != (object)Uri.UriSchemeHttps)
//throw new ArgumentOutOfRangeException("uri");
GlobalLog.Print("HttpWebRequest#" + ValidationHelper.HashString(this) + "::.ctor(" + uri.ToString() + ")");
//
// internal constructor, HttpWebRequest cannot be created directly
// but only through WebRequest.Create() method
// set defaults
//
_HttpRequestHeaders = new WebHeaderCollection(WebHeaderCollectionType.HttpWebRequest);
_Proxy = WebRequest.InternalDefaultWebProxy;
_HttpWriteMode = HttpWriteMode.Unknown;
_MaximumAllowedRedirections = 50;
_Timeout = WebRequest.DefaultTimeout;
_TimerQueue = WebRequest.DefaultTimerQueue;
_ReadWriteTimeout = DefaultReadWriteTimeout;
_MaximumResponseHeadersLength = DefaultMaximumResponseHeadersLength;
_ContentLength = -1;
_originalContentLength = -1;
_OriginVerb = KnownHttpVerb.Get;
_OriginUri = uri;
_Uri = _OriginUri;
_ServicePoint = servicePoint;
_RequestIsAsync = TriState.Unspecified;
m_ContinueTimeout = DefaultContinueTimeout;
m_ContinueTimerQueue = s_ContinueTimerQueue;
SetupCacheProtocol(_OriginUri);
#if HTTP_HEADER_EXTENSIONS_SUPPORTED
_NextExtension = 10;
#endif // HTTP_HEADER_EXTENSIONS_SUPPORTED
if(Logging.On)Logging.Exit(Logging.Web, this, "HttpWebRequest", null);
}
internal ServicePoint(string host, int port, TimerThread.Queue defaultIdlingQueue, int defaultConnectionLimit, string lookupString, bool userChangedLimit, bool proxyServicePoint) {
GlobalLog.Print("ServicePoint#" + ValidationHelper.HashString(this) + "::.ctor(" + lookupString+")");
if (Logging.On) Logging.Enter(Logging.Web, this, "ServicePoint", host + ":" + port);
m_ProxyServicePoint = proxyServicePoint;
m_ConnectionName = "ByHost:"+host+":"+port.ToString(CultureInfo.InvariantCulture);
m_IdlingQueue = defaultIdlingQueue;
m_ConnectionLimit = defaultConnectionLimit;
m_HostLoopbackGuess = TriState.Unspecified;
m_LookupString = lookupString;
m_UserChangedLimit = userChangedLimit;
m_ConnectionGroupList = new Hashtable(10);
m_ConnectionLeaseTimeout = System.Threading.Timeout.Infinite;
m_ReceiveBufferSize = -1;
m_Host = host;
m_Port = port;
m_HostMode = true;
// upon creation, the service point should be idle, by default
m_IdleSince = DateTime.Now;
m_ExpiringTimer = m_IdlingQueue.CreateTimer(ServicePointManager.IdleServicePointTimeoutDelegate, this);
m_IdleConnectionGroupTimeoutDelegate = new TimerThread.Callback(IdleConnectionGroupTimeoutCallback);
}
//
// constructors
//
internal ServicePoint(Uri address, TimerThread.Queue defaultIdlingQueue, int defaultConnectionLimit, string lookupString, bool userChangedLimit, bool proxyServicePoint) {
GlobalLog.Print("ServicePoint#" + ValidationHelper.HashString(this) + "::.ctor(" + lookupString+")");
if (Logging.On) Logging.Enter(Logging.Web, this, "ServicePoint", address.DnsSafeHost + ":" + address.Port);
m_ProxyServicePoint = proxyServicePoint;
m_Address = address;
m_ConnectionName = address.Scheme;
m_Host = address.DnsSafeHost;
m_Port = address.Port;
m_IdlingQueue = defaultIdlingQueue;
m_ConnectionLimit = defaultConnectionLimit;
m_HostLoopbackGuess = TriState.Unspecified;
m_LookupString = lookupString;
m_UserChangedLimit = userChangedLimit;
m_UseNagleAlgorithm = ServicePointManager.UseNagleAlgorithm;
m_Expect100Continue = ServicePointManager.Expect100Continue;
m_ConnectionGroupList = new Hashtable(10);
m_ConnectionLeaseTimeout = System.Threading.Timeout.Infinite;
m_ReceiveBufferSize = -1;
m_UseTcpKeepAlive = ServicePointManager.s_UseTcpKeepAlive;
m_TcpKeepAliveTime = ServicePointManager.s_TcpKeepAliveTime;
m_TcpKeepAliveInterval = ServicePointManager.s_TcpKeepAliveInterval;
// it would be safer to make sure the server is 1.1
// but assume it is at the beginning, and update it later
m_Understands100Continue = true;
m_HttpBehaviour = HttpBehaviour.Unknown;
// upon creation, the service point should be idle, by default
m_IdleSince = DateTime.Now;
m_ExpiringTimer = m_IdlingQueue.CreateTimer(ServicePointManager.IdleServicePointTimeoutDelegate, this);
m_IdleConnectionGroupTimeoutDelegate = new TimerThread.Callback(IdleConnectionGroupTimeoutCallback);
}
//
// PERF:
// removed some double initializations.
// perf went from:
// clocks per instruction CPI: 9,098.72 to 1,301.14
// %app exclusive time: 2.92 to 0.43
//
/// <devdoc>
/// <para>
/// Basic Constructor for HTTP Protocol Class, Initializes to basic header state.
/// </para>
/// </devdoc>
internal HttpWebRequest(Uri uri, ServicePoint servicePoint)
{
if(Logging.On)Logging.Enter(Logging.Web, this, "HttpWebRequest", uri);
(new WebPermission(NetworkAccess.Connect, uri)).Demand();
// OOPS, This ctor can also be called with FTP scheme but then it should only allowed if going through the proxy
// Something to think about...
//if ((object)uri.Scheme != (object)Uri.UriSchemeHttp && (object)uri.Scheme != (object)Uri.UriSchemeHttps)
//throw new ArgumentOutOfRangeException("uri");
GlobalLog.Print("HttpWebRequest#" + ValidationHelper.HashString(this) + "::.ctor(" + uri.ToString() + ")");
//
// internal constructor, HttpWebRequest cannot be created directly
// but only through WebRequest.Create() method
// set defaults
//
_HttpRequestHeaders = new WebHeaderCollection(WebHeaderCollectionType.HttpWebRequest);
_Proxy = WebRequest.InternalDefaultWebProxy;
_HttpWriteMode = HttpWriteMode.Unknown;
_MaximumAllowedRedirections = 50;
_Timeout = WebRequest.DefaultTimeout;
_TimerQueue = WebRequest.DefaultTimerQueue;
_ReadWriteTimeout = DefaultReadWriteTimeout;
_MaximumResponseHeadersLength = DefaultMaximumResponseHeadersLength;
_ContentLength = -1;
_OriginVerb = KnownHttpVerb.Get;
_OriginUri = uri;
_Uri = _OriginUri;
_ServicePoint = servicePoint;
_RequestIsAsync = TriState.Unspecified;
SetupCacheProtocol(_OriginUri);
if(Logging.On)Logging.Exit(Logging.Web, this, "HttpWebRequest", null);
}
/// <devdoc>
/// <para>
/// Downloads and compiles the script from a given Uri.
/// This code can be called by config for a downloaded control, we need to assert.
/// This code is called holding the lock.
/// </para>
/// </devdoc>
private AutoWebProxyState DownloadAndCompile(Uri location, out AutoWebProxyScriptWrapper newScriptInstance, ref int syncStatus)
{
GlobalLog.Print("AutoWebProxyScriptEngine#" + ValidationHelper.HashString(this) + "::DownloadAndCompile() location:" + ValidationHelper.ToString(location));
AutoWebProxyState newState = AutoWebProxyState.DownloadFailure;
WebResponse response = null;
TimerThread.Timer timer = null;
newScriptInstance = null;
// Can't assert this in declarative form (DCR?). This Assert() is needed to be able to create the request to download the proxy script.
ExceptionHelper.WebPermissionUnrestricted.Assert();
try {
// here we have a reentrance issue due to config load.
WebRequest request = WebRequest.Create(location);
request.Timeout = Timeout.Infinite;
request.CachePolicy = new RequestCachePolicy(RequestCacheLevel.Default);
request.ConnectionGroupName = "__WebProxyScript";
// We have an opportunity here, if caching is disabled AppDomain-wide, to override it with a
// custom, trivial cache-provider to get a similar semantic.
//
// We also want to have a backup caching key in the case when IE has locked an expired script response
//
if (request.CacheProtocol != null)
{
GlobalLog.Print("AutoWebProxyScriptEngine#" + ValidationHelper.HashString(this) + "::DownloadAndCompile() Using backup caching.");
request.CacheProtocol = new RequestCacheProtocol(backupCache, request.CacheProtocol.Validator);
}
HttpWebRequest httpWebRequest = request as HttpWebRequest;
if (httpWebRequest!=null)
{
httpWebRequest.Accept = "*/*";
httpWebRequest.UserAgent = this.GetType().FullName + "/" + Environment.Version;
httpWebRequest.KeepAlive = false;
httpWebRequest.Pipelined = false;
httpWebRequest.InternalConnectionGroup = true;
}
else
{
FtpWebRequest ftpWebRequest = request as FtpWebRequest;
if (ftpWebRequest!=null)
{
ftpWebRequest.KeepAlive = false;
}
}
// Use no proxy, default cache - initiate the download.
request.Proxy = null;
request.Credentials = webProxy.Credentials;
// Set this up with the abortable lock to abort this too.
LockRequest(request, ref syncStatus);
if (syncStatus != SyncStatus.RequestOwner)
{
throw new WebException(NetRes.GetWebStatusString("net_requestaborted", WebExceptionStatus.RequestCanceled), WebExceptionStatus.RequestCanceled);
}
// Use our own timeout timer so that it can encompass the whole request, not just the headers.
if (s_TimerQueue == null)
{
s_TimerQueue = TimerThread.GetOrCreateQueue(SettingsSectionInternal.Section.DownloadTimeout);
}
timer = s_TimerQueue.CreateTimer(s_TimerCallback, request);
response = request.GetResponse();
// Check Last Modified.
DateTime lastModified = DateTime.MinValue;
HttpWebResponse httpResponse = response as HttpWebResponse;
if (httpResponse != null)
{
lastModified = httpResponse.LastModified;
}
else
{
FtpWebResponse ftpResponse = response as FtpWebResponse;
if (ftpResponse != null)
{
lastModified = ftpResponse.LastModified;
}
}
GlobalLog.Print("AutoWebProxyScriptEngine#" + ValidationHelper.HashString(this) + "::DownloadAndCompile() lastModified:" + lastModified.ToString() + " (script):" + (scriptInstance == null ? "(null)" : scriptInstance.LastModified.ToString()));
if (scriptInstance != null && lastModified != DateTime.MinValue && scriptInstance.LastModified == lastModified)
{
newScriptInstance = scriptInstance;
newState = AutoWebProxyState.CompilationSuccess;
}
else
{
string scriptBody = null;
byte[] scriptBuffer = null;
using (Stream responseStream = response.GetResponseStream())
{
SingleItemRequestCache.ReadOnlyStream ros = responseStream as SingleItemRequestCache.ReadOnlyStream;
if (ros != null)
{
scriptBuffer = ros.Buffer;
}
if (scriptInstance != null && scriptBuffer != null && scriptBuffer == scriptInstance.Buffer)
{
scriptInstance.LastModified = lastModified;
newScriptInstance = scriptInstance;
newState = AutoWebProxyState.CompilationSuccess;
GlobalLog.Print("AutoWebProxyScriptEngine#" + ValidationHelper.HashString(this) + "::DownloadAndCompile() Buffer matched - reusing engine.");
}
else
{
using (StreamReader streamReader = new StreamReader(responseStream))
{
scriptBody = streamReader.ReadToEnd();
}
}
}
WebResponse tempResponse = response;
response = null;
tempResponse.Close();
timer.Cancel();
timer = null;
if (newState != AutoWebProxyState.CompilationSuccess)
{
newState = AutoWebProxyState.DownloadSuccess;
GlobalLog.Print("AutoWebProxyScriptEngine#" + ValidationHelper.HashString(this) + "::DownloadAndCompile() IsFromCache:" + tempResponse.IsFromCache.ToString() + " scriptInstance:" + ValidationHelper.HashString(scriptInstance));
if (scriptInstance != null && scriptBody == scriptInstance.ScriptBody)
{
GlobalLog.Print("AutoWebProxyScriptEngine#" + ValidationHelper.HashString(this) + "::DownloadAndCompile() Script matched - using existing engine.");
scriptInstance.LastModified = lastModified;
if (scriptBuffer != null)
{
scriptInstance.Buffer = scriptBuffer;
}
newScriptInstance = scriptInstance;
newState = AutoWebProxyState.CompilationSuccess;
}
else
{
GlobalLog.Print("AutoWebProxyScriptEngine#" + ValidationHelper.HashString(this) + "::DownloadAndCompile() Creating AutoWebProxyScriptWrapper.");
newScriptInstance = new AutoWebProxyScriptWrapper();
newScriptInstance.LastModified = lastModified;
newState = newScriptInstance.Compile(location, scriptBody, scriptBuffer);
}
}
}
}
catch (Exception exception)
{
if (NclUtilities.IsFatal(exception)) throw;
if(Logging.On)Logging.PrintWarning(Logging.Web, SR.GetString(SR.net_log_proxy_script_download_compile_error, exception));
GlobalLog.Print("AutoWebProxyScriptEngine#" + ValidationHelper.HashString(this) + "::DownloadAndCompile() Download() threw:" + ValidationHelper.ToString(exception));
}
finally
{
if (timer != null)
{
timer.Cancel();
}
//
try
{
if (response != null)
{
response.Close();
}
}
finally
{
WebPermission.RevertAssert();
}
}
if (newState!=AutoWebProxyState.CompilationSuccess) {
newScriptInstance = null;
}
GlobalLog.Print("AutoWebProxyScriptEngine#" + ValidationHelper.HashString(this) + "::DownloadAndCompile() retuning newState:" + ValidationHelper.ToString(newState));
return newState;
}
/// <summary>
/// <para>Constructor - binds pool with a servicePoint and sets up a cleanup Timer to remove Idle Connections</para>
/// </summary>
internal ConnectionPool(ServicePoint servicePoint, int maxPoolSize, int minPoolSize, int idleTimeout, CreateConnectionDelegate createConnectionCallback) : base() {
m_State = State.Initializing;
m_CreateConnectionCallback = createConnectionCallback;
m_MaxPoolSize = maxPoolSize;
m_MinPoolSize = minPoolSize;
m_ServicePoint = servicePoint;
Initialize();
if (idleTimeout > 0) {
// special case: if the timeout value is 1 then the timer thread should have a duration
// of 1 to avoid having the timer callback run constantly
m_CleanupQueue = TimerThread.GetOrCreateQueue(idleTimeout == 1 ? 1 : (idleTimeout / 2));
m_CleanupQueue.CreateTimer(s_CleanupCallback, this);
}
}
private BaseWebProxyFinder.AutoWebProxyState DownloadAndCompile(Uri location)
{
BaseWebProxyFinder.AutoWebProxyState downloadFailure = BaseWebProxyFinder.AutoWebProxyState.DownloadFailure;
WebResponse response = null;
TimerThread.Timer timer = null;
AutoWebProxyScriptWrapper scriptInstance = null;
ExceptionHelper.WebPermissionUnrestricted.Assert();
try
{
lock (this.lockObject)
{
if (this.aborted)
{
throw new WebException(NetRes.GetWebStatusString("net_requestaborted", WebExceptionStatus.RequestCanceled), WebExceptionStatus.RequestCanceled);
}
this.request = WebRequest.Create(location);
}
this.request.Timeout = -1;
this.request.CachePolicy = new RequestCachePolicy(RequestCacheLevel.Default);
this.request.ConnectionGroupName = "__WebProxyScript";
if (this.request.CacheProtocol != null)
{
this.request.CacheProtocol = new RequestCacheProtocol(this.backupCache, this.request.CacheProtocol.Validator);
}
HttpWebRequest request = this.request as HttpWebRequest;
if (request != null)
{
request.Accept = "*/*";
request.UserAgent = base.GetType().FullName + "/" + Environment.Version;
request.KeepAlive = false;
request.Pipelined = false;
request.InternalConnectionGroup = true;
}
else
{
FtpWebRequest request2 = this.request as FtpWebRequest;
if (request2 != null)
{
request2.KeepAlive = false;
}
}
this.request.Proxy = null;
this.request.Credentials = base.Engine.Credentials;
if (timerQueue == null)
{
timerQueue = TimerThread.GetOrCreateQueue(SettingsSectionInternal.Section.DownloadTimeout);
}
timer = timerQueue.CreateTimer(timerCallback, this.request);
response = this.request.GetResponse();
DateTime minValue = DateTime.MinValue;
HttpWebResponse response2 = response as HttpWebResponse;
if (response2 != null)
{
minValue = response2.LastModified;
}
else
{
FtpWebResponse response3 = response as FtpWebResponse;
if (response3 != null)
{
minValue = response3.LastModified;
}
}
if (((this.scriptInstance != null) && (minValue != DateTime.MinValue)) && (this.scriptInstance.LastModified == minValue))
{
scriptInstance = this.scriptInstance;
downloadFailure = BaseWebProxyFinder.AutoWebProxyState.Completed;
}
else
{
string scriptBody = null;
byte[] buffer = null;
using (Stream stream = response.GetResponseStream())
{
SingleItemRequestCache.ReadOnlyStream stream2 = stream as SingleItemRequestCache.ReadOnlyStream;
if (stream2 != null)
{
buffer = stream2.Buffer;
}
if (((this.scriptInstance != null) && (buffer != null)) && (buffer == this.scriptInstance.Buffer))
{
this.scriptInstance.LastModified = minValue;
scriptInstance = this.scriptInstance;
downloadFailure = BaseWebProxyFinder.AutoWebProxyState.Completed;
}
else
{
using (StreamReader reader = new StreamReader(stream))
{
scriptBody = reader.ReadToEnd();
}
}
}
WebResponse response4 = response;
response = null;
response4.Close();
timer.Cancel();
timer = null;
if (downloadFailure != BaseWebProxyFinder.AutoWebProxyState.Completed)
{
if ((this.scriptInstance != null) && (scriptBody == this.scriptInstance.ScriptBody))
{
this.scriptInstance.LastModified = minValue;
if (buffer != null)
{
this.scriptInstance.Buffer = buffer;
}
scriptInstance = this.scriptInstance;
downloadFailure = BaseWebProxyFinder.AutoWebProxyState.Completed;
}
else
{
scriptInstance = new AutoWebProxyScriptWrapper {
LastModified = minValue
};
if (scriptInstance.Compile(location, scriptBody, buffer))
{
downloadFailure = BaseWebProxyFinder.AutoWebProxyState.Completed;
}
else
{
downloadFailure = BaseWebProxyFinder.AutoWebProxyState.CompilationFailure;
}
}
}
}
}
catch (Exception exception)
{
if (Logging.On)
{
Logging.PrintWarning(Logging.Web, SR.GetString("net_log_proxy_script_download_compile_error", new object[] { exception }));
}
}
finally
{
if (timer != null)
{
timer.Cancel();
}
try
{
if (response != null)
{
response.Close();
}
}
finally
{
CodeAccessPermission.RevertAssert();
this.request = null;
}
}
if ((downloadFailure == BaseWebProxyFinder.AutoWebProxyState.Completed) && (this.scriptInstance != scriptInstance))
{
if (this.scriptInstance != null)
{
this.scriptInstance.Close();
}
this.scriptInstance = scriptInstance;
}
return(downloadFailure);
}
internal HttpWebRequest(Uri proxyUri, Uri requestUri, HttpWebRequest orginalRequest) : this(proxyUri, null) {
GlobalLog.Enter("HttpWebRequest::HttpWebRequest",
"proxyUri="+proxyUri+", requestUri="+requestUri
);
_OriginVerb = KnownHttpVerb.Parse("CONNECT");
//
// CONNECT requests cannot be pipelined
//
Pipelined = false;
//
// each CONNECT request has a unique connection group name to avoid
// non-CONNECT requests being made over the same connection
//
_OriginUri = requestUri;
IsTunnelRequest = true;
_ConnectionGroupName = ServicePointManager.SpecialConnectGroupName + "(" + UniqueGroupId + ")";
m_InternalConnectionGroup = true;
//
// the CONNECT request must respond to a 407 as if it were a 401.
// So we set up the server authentication state as if for a proxy
//
ServerAuthenticationState = new AuthenticationState(true);
// CONNECT request is not suitable for caching
CacheProtocol = null;
m_ContinueTimeout = DefaultContinueTimeout;
m_ContinueTimerQueue = s_ContinueTimerQueue;
GlobalLog.Leave("HttpWebRequest::HttpWebRequest");
}
/// <summary>
/// <para>Constructor - binds pool with a servicePoint and sets up a cleanup Timer to nuke Idle Connections</para>
/// </summary>
internal ConnectionPool(ServicePoint servicePoint, int maxPoolSize, int minPoolSize, int idleTimeout, CreateConnectionDelegate createConnectionCallback) : base() {
m_State = State.Initializing;
m_CreateConnectionCallback = createConnectionCallback;
m_MaxPoolSize = maxPoolSize;
m_MinPoolSize = minPoolSize;
m_ServicePoint = servicePoint;
Initialize();
if (idleTimeout > 0) {
m_CleanupQueue = TimerThread.GetOrCreateQueue(idleTimeout / 2);
m_CleanupQueue.CreateTimer(s_CleanupCallback, this);
}
}
/*private*/ protected HttpWebRequest(SerializationInfo serializationInfo, StreamingContext streamingContext):base(serializationInfo, streamingContext) {
#if DEBUG
using (GlobalLog.SetThreadKind(ThreadKinds.User)) {
#endif
ExceptionHelper.WebPermissionUnrestricted.Demand();
if(Logging.On)Logging.Enter(Logging.Web, this, "HttpWebRequest", serializationInfo);
_HttpRequestHeaders = (WebHeaderCollection)serializationInfo.GetValue("_HttpRequestHeaders", typeof(WebHeaderCollection));
_Proxy = (IWebProxy)serializationInfo.GetValue("_Proxy", typeof(IWebProxy));
KeepAlive = serializationInfo.GetBoolean("_KeepAlive");
Pipelined = serializationInfo.GetBoolean("_Pipelined");
AllowAutoRedirect = serializationInfo.GetBoolean("_AllowAutoRedirect");
if (!serializationInfo.GetBoolean("_AllowWriteStreamBuffering"))
{
_Booleans &= ~Booleans.AllowWriteStreamBuffering;
}
HttpWriteMode = (HttpWriteMode)serializationInfo.GetInt32("_HttpWriteMode");
_MaximumAllowedRedirections = serializationInfo.GetInt32("_MaximumAllowedRedirections");
_AutoRedirects = serializationInfo.GetInt32("_AutoRedirects");
_Timeout = serializationInfo.GetInt32("_Timeout");
m_ContinueTimeout = DefaultContinueTimeout; // This ctor is deprecated. Just set the default value.
m_ContinueTimerQueue = s_ContinueTimerQueue;
try {
_ReadWriteTimeout = serializationInfo.GetInt32("_ReadWriteTimeout");
}
catch {
_ReadWriteTimeout = DefaultReadWriteTimeout;
}
try {
_MaximumResponseHeadersLength = serializationInfo.GetInt32("_MaximumResponseHeadersLength");
}
catch {
_MaximumResponseHeadersLength = DefaultMaximumResponseHeadersLength;
}
_ContentLength = serializationInfo.GetInt64("_ContentLength");
_MediaType = serializationInfo.GetString("_MediaType");
_OriginVerb = KnownHttpVerb.Parse(serializationInfo.GetString("_OriginVerb"));
_ConnectionGroupName = serializationInfo.GetString("_ConnectionGroupName");
ProtocolVersion = (Version)serializationInfo.GetValue("_Version", typeof(Version));
_OriginUri = (Uri)serializationInfo.GetValue("_OriginUri", typeof(Uri));
#if HTTP_HEADER_EXTENSIONS_SUPPORTED
_NextExtension = serializationInfo.GetInt32("_NextExtension");
#endif // HTTP_HEADER_EXTENSIONS_SUPPORTED
SetupCacheProtocol(_OriginUri);
if(Logging.On)Logging.Exit(Logging.Web, this, "HttpWebRequest", null);
#if DEBUG
}
#endif
}
// Downloads and compiles the script from a given Uri.
// This code can be called by config for a downloaded control, we need to assert.
// This code is called holding the lock.
private AutoWebProxyState DownloadAndCompile(Uri location)
{
GlobalLog.Print("NetWebProxyFinder#" + ValidationHelper.HashString(this) + "::DownloadAndCompile() location:" + ValidationHelper.ToString(location));
AutoWebProxyState newState = AutoWebProxyState.DownloadFailure;
WebResponse response = null;
TimerThread.Timer timer = null;
AutoWebProxyScriptWrapper newScriptInstance = null;
// Can't assert this in declarative form (DCR?). This Assert() is needed to be able to create the request to download the proxy script.
ExceptionHelper.WebPermissionUnrestricted.Assert();
try
{
lock (lockObject)
{
if (aborted)
{
throw new WebException(NetRes.GetWebStatusString("net_requestaborted",
WebExceptionStatus.RequestCanceled), WebExceptionStatus.RequestCanceled);
}
request = WebRequest.Create(location);
}
request.Timeout = Timeout.Infinite;
request.CachePolicy = new RequestCachePolicy(RequestCacheLevel.Default);
request.ConnectionGroupName = "__WebProxyScript";
// We have an opportunity here, if caching is disabled AppDomain-wide, to override it with a
// custom, trivial cache-provider to get a similar semantic.
//
// We also want to have a backup caching key in the case when IE has locked an expired script response
//
if (request.CacheProtocol != null)
{
GlobalLog.Print("NetWebProxyFinder#" + ValidationHelper.HashString(this) + "::DownloadAndCompile() Using backup caching.");
request.CacheProtocol = new RequestCacheProtocol(backupCache, request.CacheProtocol.Validator);
}
HttpWebRequest httpWebRequest = request as HttpWebRequest;
if (httpWebRequest != null)
{
httpWebRequest.Accept = "*/*";
httpWebRequest.UserAgent = this.GetType().FullName + "/" + Environment.Version;
httpWebRequest.KeepAlive = false;
httpWebRequest.Pipelined = false;
httpWebRequest.InternalConnectionGroup = true;
}
else
{
FtpWebRequest ftpWebRequest = request as FtpWebRequest;
if (ftpWebRequest != null)
{
ftpWebRequest.KeepAlive = false;
}
}
// Use no proxy, default cache - initiate the download.
request.Proxy = null;
request.Credentials = Engine.Credentials;
// Use our own timeout timer so that it can encompass the whole request, not just the headers.
if (timerQueue == null)
{
timerQueue = TimerThread.GetOrCreateQueue(SettingsSectionInternal.Section.DownloadTimeout);
}
timer = timerQueue.CreateTimer(timerCallback, request);
response = request.GetResponse();
// Check Last Modified.
DateTime lastModified = DateTime.MinValue;
HttpWebResponse httpResponse = response as HttpWebResponse;
if (httpResponse != null)
{
lastModified = httpResponse.LastModified;
}
else
{
FtpWebResponse ftpResponse = response as FtpWebResponse;
if (ftpResponse != null)
{
lastModified = ftpResponse.LastModified;
}
}
GlobalLog.Print("NetWebProxyFinder#" + ValidationHelper.HashString(this) + "::DownloadAndCompile() lastModified:" + lastModified.ToString() + " (script):" + (scriptInstance == null ? "(null)" : scriptInstance.LastModified.ToString()));
if (scriptInstance != null && lastModified != DateTime.MinValue && scriptInstance.LastModified == lastModified)
{
newScriptInstance = scriptInstance;
newState = AutoWebProxyState.Completed;
}
else
{
string scriptBody = null;
byte[] scriptBuffer = null;
using (Stream responseStream = response.GetResponseStream())
{
SingleItemRequestCache.ReadOnlyStream ros = responseStream as SingleItemRequestCache.ReadOnlyStream;
if (ros != null)
{
scriptBuffer = ros.Buffer;
}
if (scriptInstance != null && scriptBuffer != null && scriptBuffer == scriptInstance.Buffer)
{
scriptInstance.LastModified = lastModified;
newScriptInstance = scriptInstance;
newState = AutoWebProxyState.Completed;
GlobalLog.Print("NetWebProxyFinder#" + ValidationHelper.HashString(this) + "::DownloadAndCompile() Buffer matched - reusing Engine.");
}
else
{
using (StreamReader streamReader = new StreamReader(responseStream))
{
scriptBody = streamReader.ReadToEnd();
}
}
}
WebResponse tempResponse = response;
response = null;
tempResponse.Close();
timer.Cancel();
timer = null;
if (newState != AutoWebProxyState.Completed)
{
GlobalLog.Print("NetWebProxyFinder#" + ValidationHelper.HashString(this) + "::DownloadAndCompile() IsFromCache:" + tempResponse.IsFromCache.ToString() + " scriptInstance:" + ValidationHelper.HashString(scriptInstance));
if (scriptInstance != null && scriptBody == scriptInstance.ScriptBody)
{
GlobalLog.Print("NetWebProxyFinder#" + ValidationHelper.HashString(this) + "::DownloadAndCompile() Script matched - using existing Engine.");
scriptInstance.LastModified = lastModified;
if (scriptBuffer != null)
{
scriptInstance.Buffer = scriptBuffer;
}
newScriptInstance = scriptInstance;
newState = AutoWebProxyState.Completed;
}
else
{
GlobalLog.Print("NetWebProxyFinder#" + ValidationHelper.HashString(this) + "::DownloadAndCompile() Creating AutoWebProxyScriptWrapper.");
newScriptInstance = new AutoWebProxyScriptWrapper();
newScriptInstance.LastModified = lastModified;
if (newScriptInstance.Compile(location, scriptBody, scriptBuffer))
{
newState = AutoWebProxyState.Completed;
}
else
{
newState = AutoWebProxyState.CompilationFailure;
}
}
}
}
}
catch (Exception exception)
{
if (Logging.On)
{
Logging.PrintWarning(Logging.Web, SR.GetString(SR.net_log_proxy_script_download_compile_error, exception));
}
GlobalLog.Print("NetWebProxyFinder#" + ValidationHelper.HashString(this) + "::DownloadAndCompile() Download() threw:" + ValidationHelper.ToString(exception));
}
finally
{
if (timer != null)
{
timer.Cancel();
}
//
try
{
if (response != null)
{
response.Close();
}
}
finally
{
WebPermission.RevertAssert();
// The request is not needed anymore. Set it to null, so if Abort() gets called,
// after this point, it will result in a no-op.
request = null;
}
}
if ((newState == AutoWebProxyState.Completed) && (scriptInstance != newScriptInstance))
{
if (scriptInstance != null)
{
scriptInstance.Close();
}
scriptInstance = newScriptInstance;
}
GlobalLog.Print("NetWebProxyFinder#" + ValidationHelper.HashString(this) + "::DownloadAndCompile() retuning newState:" + ValidationHelper.ToString(newState));
return(newState);
}
internal ServicePoint(string host, int port, TimerThread.Queue defaultIdlingQueue, int defaultConnectionLimit, string lookupString, bool userChangedLimit, bool proxyServicePoint)
{
this.m_HostName = string.Empty;
this.m_ProxyServicePoint = proxyServicePoint;
this.m_ConnectionName = "ByHost:" + host + ":" + port.ToString(CultureInfo.InvariantCulture);
this.m_IdlingQueue = defaultIdlingQueue;
this.m_ConnectionLimit = defaultConnectionLimit;
this.m_HostLoopbackGuess = TriState.Unspecified;
this.m_LookupString = lookupString;
this.m_UserChangedLimit = userChangedLimit;
this.m_ConnectionGroupList = new Hashtable(10);
this.m_ConnectionLeaseTimeout = -1;
this.m_ReceiveBufferSize = -1;
this.m_Host = host;
this.m_Port = port;
this.m_HostMode = true;
this.m_IdleSince = DateTime.Now;
this.m_ExpiringTimer = this.m_IdlingQueue.CreateTimer(ServicePointManager.IdleServicePointTimeoutDelegate, this);
}
private BaseWebProxyFinder.AutoWebProxyState DownloadAndCompile(Uri location)
{
BaseWebProxyFinder.AutoWebProxyState downloadFailure = BaseWebProxyFinder.AutoWebProxyState.DownloadFailure;
WebResponse response = null;
TimerThread.Timer timer = null;
AutoWebProxyScriptWrapper scriptInstance = null;
ExceptionHelper.WebPermissionUnrestricted.Assert();
try
{
lock (this.lockObject)
{
if (this.aborted)
{
throw new WebException(NetRes.GetWebStatusString("net_requestaborted", WebExceptionStatus.RequestCanceled), WebExceptionStatus.RequestCanceled);
}
this.request = WebRequest.Create(location);
}
this.request.Timeout = -1;
this.request.CachePolicy = new RequestCachePolicy(RequestCacheLevel.Default);
this.request.ConnectionGroupName = "__WebProxyScript";
if (this.request.CacheProtocol != null)
{
this.request.CacheProtocol = new RequestCacheProtocol(this.backupCache, this.request.CacheProtocol.Validator);
}
HttpWebRequest request = this.request as HttpWebRequest;
if (request != null)
{
request.Accept = "*/*";
request.UserAgent = base.GetType().FullName + "/" + Environment.Version;
request.KeepAlive = false;
request.Pipelined = false;
request.InternalConnectionGroup = true;
}
else
{
FtpWebRequest request2 = this.request as FtpWebRequest;
if (request2 != null)
{
request2.KeepAlive = false;
}
}
this.request.Proxy = null;
this.request.Credentials = base.Engine.Credentials;
if (timerQueue == null)
{
timerQueue = TimerThread.GetOrCreateQueue(SettingsSectionInternal.Section.DownloadTimeout);
}
timer = timerQueue.CreateTimer(timerCallback, this.request);
response = this.request.GetResponse();
DateTime minValue = DateTime.MinValue;
HttpWebResponse response2 = response as HttpWebResponse;
if (response2 != null)
{
minValue = response2.LastModified;
}
else
{
FtpWebResponse response3 = response as FtpWebResponse;
if (response3 != null)
{
minValue = response3.LastModified;
}
}
if (((this.scriptInstance != null) && (minValue != DateTime.MinValue)) && (this.scriptInstance.LastModified == minValue))
{
scriptInstance = this.scriptInstance;
downloadFailure = BaseWebProxyFinder.AutoWebProxyState.Completed;
}
else
{
string scriptBody = null;
byte[] buffer = null;
using (Stream stream = response.GetResponseStream())
{
SingleItemRequestCache.ReadOnlyStream stream2 = stream as SingleItemRequestCache.ReadOnlyStream;
if (stream2 != null)
{
buffer = stream2.Buffer;
}
if (((this.scriptInstance != null) && (buffer != null)) && (buffer == this.scriptInstance.Buffer))
{
this.scriptInstance.LastModified = minValue;
scriptInstance = this.scriptInstance;
downloadFailure = BaseWebProxyFinder.AutoWebProxyState.Completed;
}
else
{
using (StreamReader reader = new StreamReader(stream))
{
scriptBody = reader.ReadToEnd();
}
}
}
WebResponse response4 = response;
response = null;
response4.Close();
timer.Cancel();
timer = null;
if (downloadFailure != BaseWebProxyFinder.AutoWebProxyState.Completed)
{
if ((this.scriptInstance != null) && (scriptBody == this.scriptInstance.ScriptBody))
{
this.scriptInstance.LastModified = minValue;
if (buffer != null)
{
this.scriptInstance.Buffer = buffer;
}
scriptInstance = this.scriptInstance;
downloadFailure = BaseWebProxyFinder.AutoWebProxyState.Completed;
}
else
{
scriptInstance = new AutoWebProxyScriptWrapper {
LastModified = minValue
};
if (scriptInstance.Compile(location, scriptBody, buffer))
{
downloadFailure = BaseWebProxyFinder.AutoWebProxyState.Completed;
}
else
{
downloadFailure = BaseWebProxyFinder.AutoWebProxyState.CompilationFailure;
}
}
}
}
}
catch (Exception exception)
{
if (Logging.On)
{
Logging.PrintWarning(Logging.Web, SR.GetString("net_log_proxy_script_download_compile_error", new object[] { exception }));
}
}
finally
{
if (timer != null)
{
timer.Cancel();
}
try
{
if (response != null)
{
response.Close();
}
}
finally
{
CodeAccessPermission.RevertAssert();
this.request = null;
}
}
if ((downloadFailure == BaseWebProxyFinder.AutoWebProxyState.Completed) && (this.scriptInstance != scriptInstance))
{
if (this.scriptInstance != null)
{
this.scriptInstance.Close();
}
this.scriptInstance = scriptInstance;
}
return downloadFailure;
}
