Code:
/ 4.0 / 4.0 / untmp / DEVDIV_TFS / Dev10 / Releases / RTMRel / ndp / fx / src / MIT / System / Web / UI / MobileControls / Adapters / WmlPageAdapter.cs / 1305376 / WmlPageAdapter.cs
//------------------------------------------------------------------------------ //// Copyright (c) Microsoft Corporation. All rights reserved. // //----------------------------------------------------------------------------- using System; using System.Collections; using System.Collections.Specialized; using System.Diagnostics; using System.Globalization; using System.IO; using System.Text; using System.Web.Mobile; using System.Web.UI.MobileControls; using System.Web.UI.MobileControls.Adapters; using System.Security.Permissions; #if COMPILING_FOR_SHIPPED_SOURCE namespace System.Web.UI.MobileControls.ShippedAdapterSource #else namespace System.Web.UI.MobileControls.Adapters #endif { /* * WmlPageAdapter base class contains wml specific methods. * * Copyright (c) 2000 Microsoft Corporation */ ///[AspNetHostingPermission(SecurityAction.LinkDemand, Level=AspNetHostingPermissionLevel.Minimal)] [AspNetHostingPermission(SecurityAction.InheritanceDemand, Level=AspNetHostingPermissionLevel.Minimal)] [Obsolete("The System.Web.Mobile.dll assembly has been deprecated and should no longer be used. For information about how to develop ASP.NET mobile applications, see http://go.microsoft.com/fwlink/?LinkId=157231.")] public class WmlPageAdapter : WmlControlAdapter, IPageAdapter { private IList _renderableForms; private static readonly String _headerBegin = "\r\n" + ""; private static readonly String _cacheExpiry = "\r\n" + "\r\n" + "\r\n"; private static readonly String _contentType = "text/vnd.wap.wml"; private IDictionary _cookielessDataDictionary = null; /////////////////////////////////////////////////////////////////////////// // Static method used for determining if device should use // this adapter /////////////////////////////////////////////////////////////////////////// /// public static bool DeviceQualifies(HttpContext context) { MobileCapabilities capabilities = ((MobileCapabilities)context.Request.Browser); String type = capabilities.PreferredRenderingType; bool qualifies = (type == MobileCapabilities.PreferredRenderingTypeWml11) || (type == MobileCapabilities.PreferredRenderingTypeWml12); return qualifies; } /////////////////////////////////////////////////////////////////////////// // IPageAdapter implementation /////////////////////////////////////////////////////////////////////////// private MobilePage _page; /// public override MobilePage Page { get { return _page; } set { _page = value; } } /// public IDictionary CookielessDataDictionary { get { return _cookielessDataDictionary; } set { _cookielessDataDictionary = value; } } private bool _persistCookielessData = false; /// public bool PersistCookielessData { get { return _persistCookielessData; } set { _persistCookielessData = value; } } private int _optimumPageWeight = 0; private const int DefaultPageWeight = 800; /// public virtual int OptimumPageWeight { get { if (_optimumPageWeight == 0) { _optimumPageWeight = CalculateOptimumPageWeight(DefaultPageWeight); } return _optimumPageWeight; } } /// public virtual HtmlTextWriter CreateTextWriter(TextWriter writer) { return new WmlMobileTextWriter(writer, Device, Page); } /// public virtual NameValueCollection DeterminePostBackMode( HttpRequest request, String postEventSourceID, String postEventArgumentID, NameValueCollection baseCollection) { NameValueCollection collection = baseCollection; if (collection != null) { if (Device.RequiresSpecialViewStateEncoding) { // Reverse the special character replacement done when // writing out the viewstate value. String speciallyEncodedState = baseCollection[MobilePage.ViewStateID]; if (speciallyEncodedState != null) { speciallyEncodedState = EncodeSpecialViewState(speciallyEncodedState); // We need to regenerate the collection since the // original baseCollection is readonly. collection = new NameValueCollection(); bool viewStateAdded = false; for (int i = 0; i < baseCollection.Count; i++) { String name = baseCollection.GetKey(i); if (!viewStateAdded && name == MobilePage.ViewStateID) { // This is the viewstate value we want to change. collection.Add(MobilePage.ViewStateID, speciallyEncodedState); viewStateAdded = true; } else { collection.Add(name, baseCollection.Get(i)); } } } } } return collection; } /// public virtual IList CacheVaryByHeaders { get { return null; } } /// public virtual bool HandleError(Exception e, HtmlTextWriter writer) { WmlMobileTextWriter wmlWriter = (WmlMobileTextWriter)writer; bool renderBackButton = Device.NumberOfSoftkeys > 2 && !Device.HasBackButton; // set mime type, in case init() has not been called yet Page.Response.ContentType = _contentType; Exception ex; if ((e is HttpException && e.InnerException != null) || (e is System.Reflection.TargetInvocationException && e.InnerException != null)) { ex = e.InnerException; } else { ex = e; } if (RequiresUTF8ContentEncoding()) { Page.Response.ContentEncoding = UTF8Encoding; } wmlWriter.BeginResponse(); wmlWriter.BeginFile(Page.Request.Url.ToString(), _contentType, Page.Response.Charset); RenderXmlHeader(writer); // First card. writer.WriteFullBeginTag("wml"); if (Device.SupportsCacheControlMetaTag) { writer.Write(_cacheExpiry); } else { Page.Response.AppendHeader("Cache-Control", "max-age=0"); } writer.WriteFullBeginTag("card"); writer.WriteFullBeginTag("p"); writer.WriteFullBeginTag("big"); writer.WriteFullBeginTag("b"); wmlWriter.WriteEncodedText(SR.GetString(SR.WmlPageAdapterServerError, HttpRuntime.AppDomainAppVirtualPath)); writer.WriteEndTag("b"); writer.WriteEndTag("big"); writer.WriteEndTag("p"); writer.WriteFullBeginTag("p"); writer.Write(" "); if (renderBackButton) { writer.Write(" "); } wmlWriter.WriteEncodedText(ex.GetType().ToString()); writer.Write("
"); wmlWriter.WriteEncodedText(ex.Message); writer.Write("
"); wmlWriter.WriteEncodedText(SR.GetString(SR.WmlPageAdapterMethod)); if (ex.TargetSite != null) { wmlWriter.WriteEncodedText(ex.TargetSite.Name); } writer.Write("
"); writer.WriteEndTag("p"); writer.WriteEndTag("card"); // Stack trace card. writer.Write(""); writer.Write(" "); if (renderBackButton) { writer.Write("
"); } String stackTrace = ex.StackTrace; if (stackTrace != null) { int maximumStackTrace = OptimumPageWeight / 2; if (stackTrace.Length > maximumStackTrace) { wmlWriter.WriteEncodedText(SR.GetString(SR.WmlPageAdapterStackTrace)); writer.Write("
"); stackTrace = stackTrace.Substring(0, maximumStackTrace); } else { wmlWriter.WriteEncodedText(SR.GetString(SR.WmlPageAdapterPartialStackTrace)); writer.Write("
"); } int lineBegin = 0; int lineEnd; while (lineBegin < stackTrace.Length) { lineEnd = stackTrace.IndexOf("\r\n", lineBegin, StringComparison.Ordinal); if (lineEnd == -1) { lineEnd = stackTrace.Length; } wmlWriter.WriteEncodedText(stackTrace.Substring(lineBegin, lineEnd - lineBegin)); writer.Write("
"); lineBegin = lineEnd + 2; } } writer.WriteEndTag("p"); writer.WriteEndTag("card"); writer.WriteEndTag("wml"); wmlWriter.EndFile(); wmlWriter.EndResponse(); return true; } ///public virtual bool HandlePagePostBackEvent(String eventSource, String eventArgument) { return false; } /// public override void Render(WmlMobileTextWriter writer) { if (RequiresUTF8ContentEncoding()) { Page.Response.ContentEncoding = UTF8Encoding; } writer.BeginResponse(); writer.BeginFile(Page.Request.Url.ToString(), _contentType, Page.Response.Charset); RenderXmlHeader(writer); writer.WriteFullBeginTag("wml"); if (Device.SupportsCacheControlMetaTag) { writer.Write(_cacheExpiry); } else { Page.Response.AppendHeader("Cache-Control", "max-age=0"); } if (Device.CanCombineFormsInDeck) { _renderableForms = Page.ActiveForm.GetLinkedForms(OptimumPageWeight); Debug.Assert(_renderableForms != null, "_renderableForms is null"); } else { _renderableForms = new ArrayList(); _renderableForms.Add(Page.ActiveForm); } foreach (Form form in _renderableForms) { RenderForm(writer, form); } writer.RenderExtraCards(); writer.WriteEndTag("wml"); writer.EndFile(); writer.EndResponse(); } /// protected virtual void RenderForm(WmlMobileTextWriter writer, Form form) { writer.AnalyzeMode = true; form.RenderControl(writer); writer.AnalyzeMode = false; form.RenderControl(writer); } // Should be called by controls/adapters after _renderableForms is // set in this.Render() /// public virtual bool IsFormRendered(Form form) { Debug.Assert(_renderableForms != null, "_renderableForms is null"); return _renderableForms.Contains(form); } private void RenderXmlHeader(HtmlTextWriter writer) { writer.Write(_headerBegin); String charset = Page.Response.Charset; if (charset != null && charset.Length > 0 && String.Compare(charset, "utf-8", StringComparison.OrdinalIgnoreCase) != 0) { writer.Write(String.Format(CultureInfo.InvariantCulture, _headerEncoding, charset)); } writer.Write(_headerEnd); } /// public virtual bool RendersMultipleForms() { return _renderableForms.Count > 1; } // '+' <-> '-' // '=' <-> '.' // '/' <-> '*' private static readonly char[] _specialEncodingChars = new char[64] { '\0', '\0', '\0', '\0', '\0', '\0', '\0', '\0', '\0', '\0', '\0', '\0', '\0', '\0', '\0', '\0', '\0', '\0', '\0', '\0', '\0', '\0', '\0', '\0', '\0', '\0', '\0', '\0', '\0', '\0', '\0', '\0', '\0', '\0', '\0', '\0', '\0', '\0', '\0', '\0', '\0', '\0', '/', '-', '\0', '+', '=', '*', '\0', '\0', '\0', '\0', '\0', '\0', '\0', '\0', '\0', '\0', '\0', '\0', '\0', '.', '\0', '\0', }; internal String EncodeSpecialViewState(String pageState) { char[] viewstate = pageState.ToCharArray(); for (int i = 0; i < viewstate.Length; i++) { char currentChar = viewstate[i]; // Only check character replacement if within the range if (currentChar < _specialEncodingChars.Length) { char encodingChar = _specialEncodingChars[currentChar]; if (encodingChar != '\0') { viewstate[i] = encodingChar; } } } return new String(viewstate); } private static readonly Encoding UTF8Encoding = Encoding.GetEncoding("UTF-8"); private bool _requiresUTF8ContentEncoding = false; private bool _haveRequiresUTF8ContentEncoding = false; private bool RequiresUTF8ContentEncoding() { if (!_haveRequiresUTF8ContentEncoding) { String RequiresUTF8ContentEncodingString = Device["requiresUTF8ContentEncoding"]; if (RequiresUTF8ContentEncodingString == null) { if (IsKDDIPhone()) { _requiresUTF8ContentEncoding = true; } } else { _requiresUTF8ContentEncoding = Convert.ToBoolean(RequiresUTF8ContentEncodingString, CultureInfo.InvariantCulture); } _haveRequiresUTF8ContentEncoding = true; } return _requiresUTF8ContentEncoding; } private bool _requiresValueAttributeInInputTag = false; private bool _haveRequiresValueAttributeInInputTag = false; internal bool RequiresValueAttributeInInputTag() { if (!_haveRequiresValueAttributeInInputTag) { String RequiresValueAttributeInInputTagString = Device["requiresValueAttributeInInputTag"]; if (RequiresValueAttributeInInputTagString == null) { if (IsKDDIPhone()) { _requiresValueAttributeInInputTag = true; } } else { _requiresValueAttributeInInputTag = Convert.ToBoolean(RequiresValueAttributeInInputTagString, CultureInfo.InvariantCulture); } _haveRequiresValueAttributeInInputTag = true; } return _requiresValueAttributeInInputTag; } private bool _isKDDIPhone = false; private bool _haveIsKDDIPhone = false; internal bool IsKDDIPhone() { if (!_haveIsKDDIPhone) { if (Device.Browser == "Phone.com" && Device.MajorVersion == 3 && Device.MinorVersion < 0.3) { String charset = Page.Request.Headers["x-up-devcap-charset"]; if (charset != null && String.Compare(charset, "Shift_JIS", StringComparison.OrdinalIgnoreCase) == 0) { _isKDDIPhone = true; } } _haveIsKDDIPhone = true; } return _isKDDIPhone; } } } // File provided for Reference Use Only by Microsoft Corporation (c) 2007.
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