365 lines
9.9 KiB
C#
365 lines
9.9 KiB
C#
//
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// System.Web.UI.HtmlControls.HtmlForm.cs
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//
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// Author:
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// Dick Porter <dick@ximian.com>
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//
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// Copyright (C) 2005-2010 Novell, Inc (http://www.novell.com)
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//
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// Permission is hereby granted, free of charge, to any person obtaining
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// a copy of this software and associated documentation files (the
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// "Software"), to deal in the Software without restriction, including
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// without limitation the rights to use, copy, modify, merge, publish,
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// distribute, sublicense, and/or sell copies of the Software, and to
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// permit persons to whom the Software is furnished to do so, subject to
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// the following conditions:
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//
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// The above copyright notice and this permission notice shall be
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// included in all copies or substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
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// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
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// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
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// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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//
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using System.ComponentModel;
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using System.Collections.Specialized;
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using System.Security.Permissions;
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using System.Web.Util;
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using System.Web.UI.WebControls;
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using System.Web.Configuration;
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using System.Web.SessionState;
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namespace System.Web.UI.HtmlControls
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{
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// CAS
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[AspNetHostingPermission (SecurityAction.LinkDemand, Level = AspNetHostingPermissionLevel.Minimal)]
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[AspNetHostingPermission (SecurityAction.InheritanceDemand, Level = AspNetHostingPermissionLevel.Minimal)]
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public class HtmlForm : HtmlContainerControl
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{
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bool inited;
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string _defaultfocus;
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string _defaultbutton;
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bool submitdisabledcontrols = false;
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bool? isUplevel;
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public HtmlForm () : base ("form")
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{
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}
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// LAMESPEC: This is undocumented on MSDN, but apparently it does exist on MS.NET.
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// See https://bugzilla.novell.com/show_bug.cgi?id=442104
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public string Action {
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get {
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string action = Attributes ["action"];
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if (String.IsNullOrEmpty (action))
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return String.Empty;
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return action;
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}
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set {
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if (String.IsNullOrEmpty (value))
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Attributes ["action"] = null;
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else
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Attributes ["action"] = value;
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}
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}
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[DefaultValue ("")]
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public string DefaultButton {
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get {
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return _defaultbutton ?? String.Empty;
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}
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set {
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_defaultbutton = value;
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}
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}
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[DefaultValue ("")]
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public string DefaultFocus {
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get {
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return _defaultfocus ?? String.Empty;
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}
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set {
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_defaultfocus = value;
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}
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}
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[DefaultValue ("")]
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[DesignerSerializationVisibility (DesignerSerializationVisibility.Hidden)]
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public string Enctype {
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get {
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string enc = Attributes["enctype"];
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if (enc == null) {
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return (String.Empty);
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}
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return (enc);
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}
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set {
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if (value == null) {
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Attributes.Remove ("enctype");
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} else {
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Attributes["enctype"] = value;
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}
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}
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}
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[DefaultValue ("")]
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[DesignerSerializationVisibility (DesignerSerializationVisibility.Hidden)]
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public string Method {
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get {
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string method = Attributes["method"];
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if ((method == null) || (method.Length == 0)) {
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return ("post");
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}
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return (method);
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}
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set {
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if (value == null) {
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Attributes.Remove ("method");
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} else {
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Attributes["method"] = value;
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}
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}
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}
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[DefaultValue ("")]
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[DesignerSerializationVisibility (DesignerSerializationVisibility.Hidden)]
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public virtual string Name {
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get {
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return UniqueID;
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}
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set {
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/* why am i here? I do nothing. */
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}
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}
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[DefaultValue (false)]
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public virtual bool SubmitDisabledControls {
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get {
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return submitdisabledcontrols;
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}
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set {
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submitdisabledcontrols = value;
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}
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}
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[DefaultValue ("")]
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[DesignerSerializationVisibility (DesignerSerializationVisibility.Hidden)]
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public string Target {
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get {
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string target = Attributes["target"];
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if (target == null) {
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return (String.Empty);
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}
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return (target);
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}
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set {
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if (value == null) {
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Attributes.Remove ("target");
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} else {
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Attributes["target"] = value;
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}
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}
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}
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public override string UniqueID {
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get {
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Control container = NamingContainer;
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if (container == Page)
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return ID;
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return "aspnetForm";
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}
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}
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[MonoTODO ("why override?")]
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protected override ControlCollection CreateControlCollection ()
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{
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return base.CreateControlCollection ();
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}
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protected internal override void OnInit (EventArgs e)
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{
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inited = true;
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Page page = Page;
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if (page != null) {
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page.RegisterViewStateHandler ();
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page.RegisterForm (this);
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}
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base.OnInit (e);
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}
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internal bool DetermineRenderUplevel ()
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{
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if (isUplevel != null)
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return (bool) isUplevel;
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isUplevel = UplevelHelper.IsUplevel (
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System.Web.Configuration.HttpCapabilitiesBase.GetUserAgentForDetection (HttpContext.Current.Request));
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return (bool) isUplevel;
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}
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protected internal override void OnPreRender (EventArgs e)
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{
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base.OnPreRender(e);
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}
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protected override void RenderAttributes (HtmlTextWriter writer)
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{
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/* Need to always render: method, action and id
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*/
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string action;
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string customAction = Attributes ["action"];
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Page page = Page;
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HttpRequest req = page != null ? page.RequestInternal : null;
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if (String.IsNullOrEmpty (customAction)) {
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string file_path = req != null ? req.ClientFilePath : null;
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string current_path = req != null ? req.CurrentExecutionFilePath : null;
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if (file_path == null)
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action = Action;
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else if (file_path == current_path) {
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// Just the filename will do
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action = UrlUtils.GetFile (file_path);
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} else {
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// Fun. We need to make cookieless sessions work, so no
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// absolute paths here.
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bool cookieless;
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SessionStateSection sec = WebConfigurationManager.GetSection ("system.web/sessionState") as SessionStateSection;
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cookieless = sec != null ? sec.Cookieless == HttpCookieMode.UseUri: false;
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string appVPath = HttpRuntime.AppDomainAppVirtualPath;
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int appVPathLen = appVPath.Length;
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if (appVPathLen > 1) {
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if (cookieless) {
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if (StrUtils.StartsWith (file_path, appVPath, true))
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file_path = file_path.Substring (appVPathLen + 1);
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} else if (StrUtils.StartsWith (current_path, appVPath, true))
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current_path = current_path.Substring (appVPathLen + 1);
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}
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if (cookieless) {
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Uri current_uri = new Uri ("http://host" + current_path);
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//Determine if the file_path is rooted (ie starts with a '/')
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//and inject a '/' into the Uri string accordingly.
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string separator = file_path[0] == '/' ? "" : "/";
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Uri fp_uri = new Uri ("http://host" + separator + file_path);
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action = fp_uri.MakeRelative (current_uri);
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} else
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action = current_path;
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}
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} else
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action = customAction;
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if (req != null)
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action += req.QueryStringRaw;
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if (req != null) {
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XhtmlConformanceSection xhtml = WebConfigurationManager.GetSection ("system.web/xhtmlConformance") as XhtmlConformanceSection;
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if (xhtml == null || xhtml.Mode != XhtmlConformanceMode.Strict)
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if (RenderingCompatibilityLessThan40)
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// LAMESPEC: MSDN says the 'name' attribute is rendered only in
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// Legacy mode, this is not true.
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writer.WriteAttribute ("name", Name);
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}
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writer.WriteAttribute ("method", Method);
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if (String.IsNullOrEmpty (customAction))
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writer.WriteAttribute ("action", action, true);
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/*
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* This is a hack that guarantees the ID is set properly for HtmlControl to
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* render it later on. As ugly as it is, we use it here because of the way
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* the ID, ClientID and UniqueID properties work internally in our Control
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* code.
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*
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* Fixes bug #82596
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*/
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if (ID == null) {
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#pragma warning disable 219
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string client = ClientID;
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#pragma warning restore 219
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}
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string submit = page != null ? page.GetSubmitStatements () : null;
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if (!String.IsNullOrEmpty (submit)) {
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Attributes.Remove ("onsubmit");
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writer.WriteAttribute ("onsubmit", submit);
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}
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/* enctype and target should not be written if
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* they are empty
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*/
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string enctype = Enctype;
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if (!String.IsNullOrEmpty (enctype))
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writer.WriteAttribute ("enctype", enctype);
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string target = Target;
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if (!String.IsNullOrEmpty (target))
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writer.WriteAttribute ("target", target);
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string defaultbutton = DefaultButton;
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if (!String.IsNullOrEmpty (defaultbutton)) {
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Control c = FindControl (defaultbutton);
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if (c == null || !(c is IButtonControl))
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throw new InvalidOperationException(String.Format ("The DefaultButton of '{0}' must be the ID of a control of type IButtonControl.",
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ID));
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if (page != null && DetermineRenderUplevel ()) {
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writer.WriteAttribute (
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"onkeypress",
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"javascript:return " + page.WebFormScriptReference + ".WebForm_FireDefaultButton(event, '" + c.ClientID + "')");
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}
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}
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/* Now remove them from the hash so the base
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* RenderAttributes can do all the rest
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*/
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Attributes.Remove ("method");
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Attributes.Remove ("enctype");
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Attributes.Remove ("target");
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base.RenderAttributes (writer);
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}
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protected internal override void RenderChildren (HtmlTextWriter writer)
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{
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Page page = Page;
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if (!inited && page != null) {
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page.RegisterViewStateHandler ();
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page.RegisterForm (this);
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}
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if (page != null)
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page.OnFormRender (writer, ClientID);
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base.RenderChildren (writer);
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if (page != null)
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page.OnFormPostRender (writer, ClientID);
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}
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/* According to corcompare */
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[MonoTODO ("why override?")]
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public override void RenderControl (HtmlTextWriter writer)
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{
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base.RenderControl (writer);
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}
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protected internal override void Render (HtmlTextWriter output)
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{
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base.Render (output);
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}
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}
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}
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