Code:
/ FXUpdate3074 / FXUpdate3074 / 1.1 / untmp / whidbey / QFE / ndp / fx / src / xsp / System / Web / UI / TraceContext.cs / 5 / TraceContext.cs
//------------------------------------------------------------------------------ //// Copyright (c) Microsoft Corporation. All rights reserved. // //----------------------------------------------------------------------------- /* * The context for outputting trace information in the page. * * Copyright (c) 1999 Microsoft Corporation */ namespace System.Web { using System; // using System.Web.UI; using System.Web.Handlers; using System.Web.Util; using System.Web.SessionState; using System.Text; using System.Data; using System.Globalization; using System.Collections; using System.Collections.Specialized; using System.Diagnostics; using System.Security.Permissions; using System.Web.Configuration; using System.Threading; using System.ComponentModel; ////// [AspNetHostingPermission(SecurityAction.LinkDemand, Level=AspNetHostingPermissionLevel.Minimal)] public sealed class TraceContext { private static DataSet _masterRequest; private static bool _writeToDiagnosticsTrace = false; private static readonly object EventTraceFinished = new object(); private EventHandlerList _events = new EventHandlerList(); private TraceMode _traceMode; private TraceEnable _isEnabled; private HttpContext _context; private DataSet _requestData; private long _firstTime; private long _lastTime; private int _uniqueIdCounter = 0; private const string PAGEKEYNAME = "__PAGE"; private const string NULLSTRING = "Captures and presents execution details about a Web request. ///Use the TraceContext /// class by appending trace messages to specific trace categories. For example, a /// calendar class might append the message ?Calendar1->Starting /// To Render? within the Render category, and append the message ?Calendar1->Firing OnChange Event? within /// the Events category. Tracing is enabled by setting the ////// Trace attribute or the System.Web.UI.TraceContext.IsEnabled /// property. When tracing is enabled, In addition to showing /// user-provided trace content, the ///class not only shows user-provided trace content, it automatically includes /// performance data, tree-structure information, and state management content. "; // this will get HtmlEncoded later... private const string NULLIDPREFIX = "__UnassignedID"; private ArrayList _traceRecords; private bool _endDataCollected; private bool _writing = false; /// /// public TraceContext(HttpContext context) { _traceMode = TraceMode.Default; // Always disable trace in retail deployment mode (DevDiv 36396) _isEnabled = DeploymentSection.RetailInternal ? TraceEnable.Disable : TraceEnable.Default; _context = context; _firstTime = -1; _lastTime = -1; _endDataCollected = false; _traceRecords = new ArrayList(); } ///Initializes a new instance of the ///class. /// public TraceMode TraceMode { get { if (_traceMode == TraceMode.Default) return HttpRuntime.Profile.OutputMode; return _traceMode; } set { if (value < TraceMode.SortByTime || value > TraceMode.Default) { throw new ArgumentOutOfRangeException("value"); } _traceMode = value; if (IsEnabled) ApplyTraceMode(); } } ///Indicates the order in which trace messages should be /// output to a requesting browser. Trace messages can be sorted in the order they /// were processed, or alphabetically by user-defined category. ////// Indicates whether tracing is enabled for the current Web request. /// Use this flag to public bool IsEnabled { get { if (_isEnabled == TraceEnable.Default) return HttpRuntime.Profile.IsEnabled; else { return (_isEnabled == TraceEnable.Enable) ? true : false; } } set { // Always disable trace in retail deployment mode (DevDiv 36396) if (DeploymentSection.RetailInternal) { System.Web.Util.Debug.Assert(_isEnabled == TraceEnable.Disable); return; } if (value) _isEnabled = TraceEnable.Enable; else _isEnabled = TraceEnable.Disable; } } /// /// internal bool PageOutput { get { if (_isEnabled == TraceEnable.Default) return HttpRuntime.Profile.PageOutput; else { return (_isEnabled == TraceEnable.Enable) ? true : false; } } } // this is used only for error pages, called from Page.HandleError. internal int StatusCode { set { VerifyStart(); DataRow row = _requestData.Tables[SR.Trace_Request].Rows[0]; row[SR.Trace_Status_Code] = value; } } ///Indicates whether trace information should be output to a Web Forms /// page. This property is used only in application-level tracing situations. You /// can set this property in your application's config.web configuration file which /// resides in the root directory of the application. ////// Raised after the trace has been finished /// public event TraceContextEventHandler TraceFinished { add { _events.AddHandler(EventTraceFinished, value); } remove { _events.RemoveHandler(EventTraceFinished, value); } } private void ApplyTraceMode() { VerifyStart(); if (TraceMode == TraceMode.SortByCategory) _requestData.Tables[SR.Trace_Trace_Information].DefaultView.Sort = SR.Trace_Category; else _requestData.Tables[SR.Trace_Trace_Information].DefaultView.Sort = SR.Trace_From_First; } internal void CopySettingsTo(TraceContext tc) { tc._traceMode = this._traceMode; tc._isEnabled = this._isEnabled; } internal void OnTraceFinished(TraceContextEventArgs e) { TraceContextEventHandler handler = (TraceContextEventHandler)_events[EventTraceFinished]; if (handler != null) { handler(this, e); } } internal static void SetWriteToDiagnosticsTrace(bool value) { _writeToDiagnosticsTrace = value; } ////// public void Write(string message) { Write(String.Empty, message, null, false, _writeToDiagnosticsTrace); } ///Writes trace information to the trace log including any /// user defined categories and trace messages. ////// public void Write(string category, string message) { Write(category, message, null, false, _writeToDiagnosticsTrace); } ///Writes trace information to the trace log including any /// user defined categories and trace messages. ////// public void Write(string category, string message, Exception errorInfo) { Write(category, message, errorInfo, false, _writeToDiagnosticsTrace); } internal void WriteInternal(string message, bool writeToDiagnostics) { Write(String.Empty, message, null, false, writeToDiagnostics); } internal void WriteInternal(string category, string message, bool writeToDiagnostics) { Write(category, message, null, false, writeToDiagnostics); } ///Writes trace information to the trace log including any user defined /// categories,trace messages and error information. ////// public void Warn(string message) { Write(String.Empty, message, null, true, _writeToDiagnosticsTrace); } ///Writes trace information to the trace log including any /// user defined categories and trace messages. All warnings appear as red text. ////// public void Warn(string category, string message) { Write(category, message, null, true, _writeToDiagnosticsTrace); } ///Writes trace information to the trace log including any /// user defined categories and trace messages. All warnings appear as red text. ////// public void Warn(string category, string message, Exception errorInfo) { Write(category, message, errorInfo, true, _writeToDiagnosticsTrace); } internal void WarnInternal(string category, string message, bool writeToDiagnostics) { Write(category, message, null, true, writeToDiagnostics); } void Write(string category, string message, Exception errorInfo, bool isWarning, bool writeToDiagnostics) { // Guard against lock(this) { // Bail if trace isn't enabled or this is from our call to System.Diagonostics.Trace below if (!IsEnabled || _writing || _endDataCollected) return; VerifyStart(); if (category == null) category = String.Empty; if (message == null) message = String.Empty; long messagetime = Counter.Value; DataRow row = NewRow(_requestData, SR.Trace_Trace_Information); row[SR.Trace_Category] = category; row[SR.Trace_Message] = message; row[SR.Trace_Warning] = isWarning ? "yes" : "no"; if (errorInfo != null) { row["ErrorInfoMessage"] = errorInfo.Message; row["ErrorInfoStack"] = errorInfo.StackTrace; } if (_firstTime != -1) { row[SR.Trace_From_First] = (( (double) (messagetime - _firstTime))/Counter.Frequency); } else _firstTime = messagetime; if (_lastTime != -1) { row[SR.Trace_From_Last] = (((double) (messagetime - _lastTime))/Counter.Frequency).ToString("0.000000", CultureInfo.CurrentCulture); } _lastTime = messagetime; AddRow(_requestData, SR.Trace_Trace_Information, row); string msg = message; if (errorInfo != null) { string eMsg = errorInfo.Message; if (eMsg == null) eMsg = String.Empty; string eTrace = errorInfo.StackTrace; if (eTrace == null) eTrace = String.Empty; StringBuilder str = new StringBuilder(message.Length + eMsg.Length + eTrace.Length); str.Append(message); str.Append(" -- "); str.Append(eMsg); str.Append(": "); str.Append(eTrace); msg = str.ToString(); } if (writeToDiagnostics) { _writing = true; System.Diagnostics.Trace.WriteLine(msg, category); _writing = false; } // Send to IIS tracing if (_context != null && _context.WorkerRequest != null) { _context.WorkerRequest.RaiseTraceEvent(isWarning ? IntegratedTraceType.TraceWarn : IntegratedTraceType.TraceWrite, msg); } } // Add the trace record to our collection _traceRecords.Add(new TraceContextRecord(category, message, isWarning, errorInfo)); } internal void AddNewControl(string id, string parentId, string type, int viewStateSize, int controlStateSize) { VerifyStart(); DataRow row = NewRow(_requestData, SR.Trace_Control_Tree); if (id == null) id = NULLIDPREFIX+(_uniqueIdCounter++); row[SR.Trace_Control_Id] = id; if (parentId == null) parentId = PAGEKEYNAME; row[SR.Trace_Parent_Id] = parentId; row[SR.Trace_Type] = type; row[SR.Trace_Viewstate_Size] = viewStateSize; row[SR.Trace_Controlstate_Size] = controlStateSize; row[SR.Trace_Render_Size] = 0; try { AddRow(_requestData, SR.Trace_Control_Tree, row); } catch (ConstraintException) { throw new HttpException(SR.GetString(SR.Duplicate_id_used, id, "Trace")); } } /* * Add the render size to the control */ internal void AddControlSize(String controlId, int renderSize) { VerifyStart(); DataTable dt = _requestData.Tables[SR.Trace_Control_Tree]; // find the row for this control if (controlId == null) controlId = PAGEKEYNAME; DataRow row = dt.Rows.Find((object) controlId); // if the row is null, we couldn't find it, so we'll just skip this control if (row != null) row[SR.Trace_Render_Size] = renderSize; } internal void AddControlStateSize(String controlId, int viewstateSize, int controlstateSize) { VerifyStart(); DataTable dt = _requestData.Tables[SR.Trace_Control_Tree]; // find the row for this control if (controlId == null) controlId = PAGEKEYNAME; DataRow row = dt.Rows.Find((object) controlId); // if the row is null, we couldn't find it, so we'll just skip this control if (row != null) { row[SR.Trace_Viewstate_Size] = viewstateSize; row[SR.Trace_Controlstate_Size] = controlstateSize; } } internal void Render(HtmlTextWriter output) { if (PageOutput && _requestData != null) { TraceEnable oldEnabled = _isEnabled; _isEnabled = TraceEnable.Disable; Control table; output.Write("Writes trace information to the trace log including any user defined categories,trace messages and error information. All /// warnings appear as red text. ///\r\n"); output.Write(TraceHandler.StyleSheet); output.Write("\r\n"); table = TraceHandler.CreateDetailsTable(_requestData.Tables[SR.Trace_Request]); if (table != null) table.RenderControl(output); table = TraceHandler.CreateTraceTable(_requestData.Tables[SR.Trace_Trace_Information]); if (table != null) table.RenderControl(output); table = TraceHandler.CreateControlTable(_requestData.Tables[SR.Trace_Control_Tree]); if (table != null) table.RenderControl(output); table = TraceHandler.CreateTable(_requestData.Tables[SR.Trace_Session_State], true /*encodeSpaces*/); if (table != null) table.RenderControl(output); table = TraceHandler.CreateTable(_requestData.Tables[SR.Trace_Application_State], true /*encodeSpaces*/); if (table != null) table.RenderControl(output); table = TraceHandler.CreateTable(_requestData.Tables[SR.Trace_Request_Cookies_Collection], true /*encodeSpaces*/); if (table != null) table.RenderControl(output); table = TraceHandler.CreateTable(_requestData.Tables[SR.Trace_Response_Cookies_Collection], true /*encodeSpaces*/); if (table != null) table.RenderControl(output); table = TraceHandler.CreateTable(_requestData.Tables[SR.Trace_Headers_Collection], true /*encodeSpaces*/); if (table != null) table.RenderControl(output); table = TraceHandler.CreateTable(_requestData.Tables[SR.Trace_Response_Headers_Collection], true /*encodeSpaces*/); if (table != null) table.RenderControl(output); table = TraceHandler.CreateTable(_requestData.Tables[SR.Trace_Form_Collection]); if (table != null) table.RenderControl(output); table = TraceHandler.CreateTable(_requestData.Tables[SR.Trace_Querystring_Collection]); if (table != null) table.RenderControl(output); table = TraceHandler.CreateTable(_requestData.Tables[SR.Trace_Server_Variables], true /*encodeSpaces*/); if (table != null) table.RenderControl(output); output.Write("\r\n"); _isEnabled = oldEnabled; } } internal DataSet GetData() { return _requestData; } internal void VerifyStart() { // if we have already started, we can skip the lock if (_masterRequest == null) { // otherwise we need to make sure two // requests don't try to call InitMaster at the same time lock(this) { if (_masterRequest == null) InitMaster(); } } if (_requestData == null) { InitRequest(); } } internal void StopTracing() { _endDataCollected = true; } /* * Finalize the request */ internal void EndRequest() { VerifyStart(); if (_endDataCollected) return; // add some more information about the reponse DataRow row = _requestData.Tables[SR.Trace_Request].Rows[0]; row[SR.Trace_Status_Code] = _context.Response.StatusCode; row[SR.Trace_Response_Encoding] = _context.Response.ContentEncoding.EncodingName; IEnumerator en; string temp; object obj; int i; // Application State info _context.Application.Lock(); try { en = _context.Application.GetEnumerator(); while (en.MoveNext()) { row = NewRow(_requestData, SR.Trace_Application_State); temp = (string) en.Current; //the key might be null row[SR.Trace_Application_Key] = (temp != null) ? temp : NULLSTRING; obj = _context.Application[temp]; // the value could also be null if (obj != null) { row[SR.Trace_Type] = obj.GetType(); row[SR.Trace_Value] = obj.ToString(); } else { row[SR.Trace_Type] = NULLSTRING; row[SR.Trace_Value] = NULLSTRING; } AddRow(_requestData, SR.Trace_Application_State, row); } } finally { _context.Application.UnLock(); } // request cookie info HttpCookieCollection cookieCollection = new HttpCookieCollection(); _context.Request.FillInCookiesCollection(cookieCollection, false /*includeResponse */); HttpCookie[] cookies = new HttpCookie[cookieCollection.Count]; cookieCollection.CopyTo(cookies, 0); for (i = 0; i
\r\n\r\n"); output.Write(SR.GetString(SR.Error_Formatter_CLR_Build) + VersionInfo.ClrVersion + SR.GetString(SR.Error_Formatter_ASPNET_Build) + VersionInfo.EngineVersion + "\r\n\r\n"); output.Write("\r\n\r\n"); output.Write("\r\n
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