internal override void OnPreRenderComplete(IDotvvmRequestContext context)
{
eventLog?.Add(new ControlLifeCycleEvent(this, LifeCycleEventType.PreRenderComplete, true));
PreRenderCompleteAction(this, context);
eventLog?.Add(new ControlLifeCycleEvent(this, LifeCycleEventType.PreRenderComplete, false));
base.OnPreRenderComplete(context);
}
internal override void OnPreInit(IDotvvmRequestContext context)
{
eventLog?.Add(new ControlLifeCycleEvent(this, LifeCycleEventType.PreInit, true));
PreInitAction(this, context);
eventLog?.Add(new ControlLifeCycleEvent(this, LifeCycleEventType.PreInit, false));
base.OnPreInit(context);
}
/// <summary>
/// Renders the resource in the specified <see cref="IHtmlWriter" />.
/// </summary>
public override void Render(IHtmlWriter writer, IDotvvmRequestContext context)
{
writer.AddAttribute("href", GetUrl());
writer.AddAttribute("rel", "stylesheet");
writer.AddAttribute("type", "text/css");
writer.RenderSelfClosingTag("link");
}
protected override void RenderControl(IHtmlWriter writer, IDotvvmRequestContext context)
{
if (!RenderOnServer || GetIEnumerableFromDataSource(DataSource)?.GetEnumerator()?.MoveNext() != true)
{
base.RenderControl(writer, context);
}
}
/// <summary>
/// Renders the contents inside the control begin and end tags.
/// </summary>
protected override void RenderContents(IHtmlWriter writer, IDotvvmRequestContext context)
{
// render template
writer.AddKnockoutDataBind("text", "errorMessage");
writer.RenderBeginTag("li");
writer.RenderEndTag();
}
/// <summary>
/// Renders the resource in the specified <see cref="IHtmlWriter" />.
/// </summary>
public override void Render(IHtmlWriter writer, IDotvvmRequestContext context)
{
if (CdnUrl != null)
{
writer.AddAttribute("src", CdnUrl);
writer.AddAttribute("type", "text/javascript");
writer.RenderBeginTag("script");
writer.RenderEndTag();
if (Url != null && GlobalObjectName != null)
{
writer.RenderBeginTag("script");
var url = context.TranslateVirtualPath(GetUrl());
writer.WriteUnencodedText(string.Format(CdnFallbackScript, GlobalObjectName, url));
writer.RenderEndTag();
}
}
else if (Url != null)
{
writer.AddAttribute("src", GetUrl());
writer.AddAttribute("type", "text/javascript");
writer.RenderBeginTag("script");
writer.RenderEndTag();
}
}
protected override void OnCommandException(IDotvvmRequestContext context, ActionInfo actionInfo, Exception ex)
{
((ActionFilterErrorHandlingViewModel) context.ViewModel).Result = "error was handled";
context.IsCommandExceptionHandled = true;
base.OnCommandException(context, actionInfo, ex);
}
public void VerifyToken(IDotvvmRequestContext context, string token)
{
if (context == null) throw new ArgumentNullException(nameof(context));
if (string.IsNullOrWhiteSpace(token)) throw new SecurityException("CSRF protection token is missing.");
// Construct protector with purposes
var userIdentity = ProtectionHelpers.GetUserIdentity(context);
var requestIdentity = ProtectionHelpers.GetRequestIdentity(context);
var protector = this.protectionProvider.Create(PURPOSE_TOKEN, userIdentity, requestIdentity);
// Get token
byte[] tokenSid;
try
{
var tokenData = Convert.FromBase64String(token);
tokenSid = protector.Unprotect(tokenData);
}
catch (Exception ex)
{
// Incorrect Base64 formatting of crypto protection error
throw new SecurityException("CSRF protection token is invalid.", ex);
}
// Get SID from cookie and compare with token one
var cookieSid = this.GetOrCreateSessionId(context, canGenerate: false); // should not generate new token
if (!cookieSid.SequenceEqual(tokenSid)) throw new SecurityException("CSRF protection token is invalid.");
}
/// <summary>
/// Called after the command is invoked.
/// </summary>
protected internal override void OnCommandExecuted(IDotvvmRequestContext context, ActionInfo actionInfo, Exception exception)
{
if (exception != null)
{
OnCommandException(context, actionInfo, exception);
}
}
protected override void OnPageException(IDotvvmRequestContext context, Exception exception)
{
context.IsPageExceptionHandled = true;
context.RedirectToUrl("/error500");
base.OnPageException(context, exception);
}
protected internal override void OnLoad(IDotvvmRequestContext context)
{
eventLog?.Add(new ControlLifeCycleEvent(this, LifeCycleEventType.Load, true));
LoadAction(this, context);
eventLog?.Add(new ControlLifeCycleEvent(this, LifeCycleEventType.Load, false));
base.OnLoad(context);
}
/// <summary>
/// Adds all attributes that should be added to the control begin tag.
/// </summary>
protected override void AddAttributesToRender(IHtmlWriter writer, IDotvvmRequestContext context)
{
object id;
if (!IsPropertySet(ClientIDProperty))
{
SetValueRaw(ClientIDProperty, id = CreateClientId());
}
else
{
id = GetValueRaw(ClientIDProperty);
}
if (id != null) Attributes["id"] = id;
CheckInnerTextUsage();
// verify that the properties are used only where they should
if (!RendersHtmlTag)
{
EnsureNoAttributesSet();
}
else
{
var attrBindingGroup = new KnockoutBindingGroup();
// render hard-coded HTML attributes
foreach (var attribute in Attributes)
{
if (attribute.Value is IValueBinding)
{
var binding = attribute.Value as IValueBinding;
attrBindingGroup.Add(attribute.Key, binding.GetKnockoutBindingExpression());
if (!RenderOnServer)
continue;
}
AddHtmlAttribute(writer, attribute.Key, attribute.Value);
}
if (!attrBindingGroup.IsEmpty)
{
writer.AddKnockoutDataBind("attr", attrBindingGroup);
}
// handle Visible property
AddVisibleAttributeOrBinding(writer);
// handle Text property
writer.AddKnockoutDataBind("text", this, InnerTextProperty, () =>
{
// inner Text is rendered as attribute only if contains binding
// otherwise it is rendered directly as encoded content
if (!string.IsNullOrWhiteSpace(InnerText))
{
Children.Clear();
Children.Add(new Literal(InnerText));
}
});
}
base.AddAttributesToRender(writer, context);
}
protected override void OnPreRender(IDotvvmRequestContext context)
{
//SetValue(SanitizedMessageProperty, OriginalMessage.Replace("<","") ); //FIXME: this causes null it should not since default of OriginalMessage is set to ""
//let's say there is something more sophisticated IRL
SetValue(SanitizedMessageProperty, OriginalMessage?.Replace("<", "") ?? "");
base.OnPreRender(context);
}
/// <summary>
/// Renders the resource in the specified <see cref="IHtmlWriter" />.
/// </summary>
public override void Render(IHtmlWriter writer, IDotvvmRequestContext context)
{
if (string.IsNullOrWhiteSpace(Code)) return;
writer.AddAttribute("type", "text/javascript");
writer.RenderBeginTag("script");
writer.WriteUnencodedText(Code);
writer.RenderEndTag();
}
/// <summary>
/// Renders the control into the specified writer.
/// </summary>
protected override void RenderControl(IHtmlWriter writer, IDotvvmRequestContext context)
{
// render resource links
var resources = context.ResourceManager.GetResourcesInOrder().Where(r => r.GetRenderPosition() == ResourceRenderPosition.Head);
foreach (var resource in resources)
{
resource.Render(writer, context);
}
}
/// <summary>
/// Adds all attributes that should be added to the control begin tag.
/// </summary>
protected override void AddAttributesToRender(IHtmlWriter writer, IDotvvmRequestContext context)
{
RenderEnabledProperty(writer);
RenderOptionsProperties(writer);
RenderChangedEvent(writer);
RenderSelectedValueProperty(writer);
base.AddAttributesToRender(writer, context);
}
public override void CreateControls(IDotvvmRequestContext context, DotvvmControl container)
{
var literal = new Literal();
literal.FormatString = FormatString;
literal.ValueType = ValueType;
literal.SetBinding(Literal.TextProperty, GetValueBinding(ValueBindingProperty));
container.Children.Add(literal);
}
protected internal override void OnPreRender(IDotvvmRequestContext context)
{
context.ResourceManager.AddRequiredResource(ResourceConstants.DotvvmResourceName);
if (context.Configuration.Debug)
{
context.ResourceManager.AddRequiredResource(ResourceConstants.DotvvmDebugResourceName);
}
base.OnPreRender(context);
}
/// <summary>
/// Adds all attributes that should be added to the control begin tag.
/// </summary>
protected override void AddAttributesToRender(IHtmlWriter writer, IDotvvmRequestContext context)
{
var expression = KnockoutHelper.GetValidationTargetExpression(this);
if (expression != null)
{
writer.AddKnockoutDataBind("foreach", "dotvvm.validation.getValidationErrors(" + expression + ", " + IncludeErrorsFromChildren.ToString().ToLower() + ")");
}
base.AddAttributesToRender(writer, context);
}
/// <summary>
/// Gets the markup file virtual path from the current request URL.
/// </summary>
public string GetMarkupFileVirtualPath(IDotvvmRequestContext context)
{
// get file name
var fileName = context.Route != null ? context.Route.VirtualPath : context.OwinContext.Request.Uri.LocalPath;
if (!fileName.EndsWith(MarkupFile.ViewFileExtension, StringComparison.CurrentCultureIgnoreCase))
{
throw new Exception("The view must be a file with the .dothtml extension!"); // TODO: exception handling
}
return fileName;
}
protected override void RenderBeginTag(IHtmlWriter writer, IDotvvmRequestContext context)
{
if (RenderWrapperTag)
{
base.RenderBeginTag(writer, context);
}
else if (HasBinding(HtmlProperty))
{
writer.WriteKnockoutDataBindComment("html", this, HtmlProperty);
}
}
protected internal override void OnInit(IDotvvmRequestContext context)
{
var isAuthenticated = context.OwinContext.Request?.User?.Identity?.IsAuthenticated;
if (isAuthenticated == true)
{
AuthenticatedTemplate?.BuildContent(context, this);
}
else
{
NotAuthenticatedTemplate?.BuildContent(context, this);
}
}
/// <summary>
/// Adds all attributes that should be added to the control begin tag.
/// </summary>
protected override void AddAttributesToRender(IHtmlWriter writer, IDotvvmRequestContext context)
{
writer.AddKnockoutDataBind("dotvvmEnable", this, EnabledProperty, () =>
{
if (!Enabled)
{
writer.AddAttribute("disabled", "disabled");
}
});
base.AddAttributesToRender(writer, context);
}
protected override void AddAttributesToRender(IHtmlWriter writer, IDotvvmRequestContext context)
{
if (!RenderOnServer)
{
if (!string.IsNullOrWhiteSpace(EmptyItemText))
{
writer.AddKnockoutDataBind("optionsCaption", KnockoutHelper.MakeStringLiteral(EmptyItemText));
}
}
base.AddAttributesToRender(writer, context);
}
public static void WriteRouteLinkHrefAttribute(string routeName, HtmlGenericControl control, DotvvmProperty urlSuffixProperty, IHtmlWriter writer, IDotvvmRequestContext context)
{
if (!control.RenderOnServer)
{
var group = new KnockoutBindingGroup();
group.Add("href", GenerateKnockoutHrefExpression(routeName, control, urlSuffixProperty, context));
writer.AddKnockoutDataBind("attr", group);
}
else
{
writer.AddAttribute("href", EvaluateRouteUrl(routeName, control, urlSuffixProperty, context));
}
}
protected override void AddAttributesToRender(IHtmlWriter writer, IDotvvmRequestContext context)
{
RouteLinkHelpers.WriteRouteLinkHrefAttribute(RouteName, this, UrlSuffixProperty, writer, context);
writer.AddKnockoutDataBind("text", this, TextProperty, () =>
{
shouldRenderText = true;
});
var enabledBinding = GetValueBinding(EnabledProperty);
if (enabledBinding != null) WriteEnabledBinding(writer, enabledBinding);
base.AddAttributesToRender(writer, context);
}
public static string GetUserIdentity(IDotvvmRequestContext context)
{
var user = context.OwinContext.Request.User;
if (user != null && user.Identity.IsAuthenticated)
{
return "user" + user.Identity.Name ?? "";
}
else
{
return "anonymous";
}
}
protected override void RenderContents(IHtmlWriter writer, IDotvvmRequestContext context)
{
var properties =
GetDeclaredProperties()
.Where(p => !p.DeclaringType.IsAssignableFrom(typeof(DotvvmMarkupControl)))
.Select(GetPropertySerializationInfo)
.Where(p => p.IsSerializable)
.Select(p => JsonConvert.SerializeObject(p.Property.Name) + ": " + p.Js);
writer.WriteKnockoutDataBindComment("dotvvm_withControlProperties", "{ " + string.Join(", ", properties) + " }");
base.RenderContents(writer, context);
writer.WriteKnockoutDataBindEndComment();
}
public static string EvaluateRouteUrl(string routeName, HtmlGenericControl control, DotvvmProperty urlSuffixProperty, IDotvvmRequestContext context)
{
var coreUrl = GenerateRouteUrlCore(routeName, control, context) + (control.GetValue(urlSuffixProperty) as string ?? "");
if ((bool)control.GetValue(Internal.IsSpaPageProperty))
{
return "#!/" + coreUrl;
}
else
{
return context.TranslateVirtualPath(coreUrl);
}
}
protected override void AddAttributesToRender(IHtmlWriter writer, IDotvvmRequestContext context)
{
if (!RenderOnServer)
{
writer.AddKnockoutDataBind("visible", $"!({ GetForeachDataBindJavascriptExpression() }).length");
if (DataSource != null && GetIEnumerableFromDataSource(DataSource).OfType<object>().Any())
{
writer.AddStyleAttribute("display", "none");
}
}
base.AddAttributesToRender(writer, context);
}
