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namespace System.Web.Mvc {
using System;
using System.Collections.Generic;
using System.ComponentModel.DataAnnotations;
using System.Diagnostics.CodeAnalysis;
using System.Globalization;
using System.Web.Mvc.Resources;
using System.Web.Routing;
[AttributeUsage(AttributeTargets.Property)]
[SuppressMessage("Microsoft.Design", "CA1019:DefineAccessorsForAttributeArguments", Justification = "The constructor parameters are used to feed RouteData, which is public.")]
[SuppressMessage("Microsoft.Performance", "CA1813:AvoidUnsealedAttributes", Justification = "This attribute is designed to be a base class for other attributes.")]
public class RemoteAttribute : ValidationAttribute, IClientValidatable {
private string _additionalFields;
private string[] _additonalFieldsSplit = new string[0];
protected RemoteAttribute()
: base(MvcResources.RemoteAttribute_RemoteValidationFailed) {
RouteData = new RouteValueDictionary();
}
public RemoteAttribute(string routeName)
: this() {
if (String.IsNullOrWhiteSpace(routeName)) {
throw new ArgumentException(MvcResources.Common_NullOrEmpty, "routeName");
}
RouteName = routeName;
}
public RemoteAttribute(string action, string controller) :
this(action, controller, null /* areaName */) {
}
public RemoteAttribute(string action, string controller, string areaName)
: this() {
if (String.IsNullOrWhiteSpace(action)) {
throw new ArgumentException(MvcResources.Common_NullOrEmpty, "action");
}
if (String.IsNullOrWhiteSpace(controller)) {
throw new ArgumentException(MvcResources.Common_NullOrEmpty, "controller");
}
RouteData["controller"] = controller;
RouteData["action"] = action;
if (!String.IsNullOrWhiteSpace(areaName)) {
RouteData["area"] = areaName;
}
}
public string HttpMethod { get; set; }
public string AdditionalFields {
get {
return _additionalFields ?? String.Empty;
}
set {
_additionalFields = value;
_additonalFieldsSplit = AuthorizeAttribute.SplitString(value);
}
}
public string FormatAdditionalFieldsForClientValidation(string property) {
if (String.IsNullOrEmpty(property)) {
throw new ArgumentException(MvcResources.Common_NullOrEmpty, "property");
}
string delimitedAdditionalFields = FormatPropertyForClientValidation(property);
foreach (string field in _additonalFieldsSplit) {
delimitedAdditionalFields += "," + FormatPropertyForClientValidation(field);
}
return delimitedAdditionalFields;
}
public static string FormatPropertyForClientValidation(string property) {
if (String.IsNullOrEmpty(property)) {
throw new ArgumentException(MvcResources.Common_NullOrEmpty, "property");
}
return "*." + property;
}
protected RouteValueDictionary RouteData { get; private set; }
protected string RouteName { get; set; }
protected virtual RouteCollection Routes {
get {
return RouteTable.Routes;
}
}
[SuppressMessage("Microsoft.Design", "CA1055:UriReturnValuesShouldNotBeStrings", Justification = "The value is a not a regular URL since it may contain ~/ ASP.NET-specific characters")]
protected virtual string GetUrl(ControllerContext controllerContext) {
var pathData = Routes.GetVirtualPathForArea(controllerContext.RequestContext,
RouteName,
RouteData);
if (pathData == null) {
throw new InvalidOperationException(MvcResources.RemoteAttribute_NoUrlFound);
}
return pathData.VirtualPath;
}
public override string FormatErrorMessage(string name) {
return string.Format(CultureInfo.CurrentCulture, ErrorMessageString, name);
}
public override bool IsValid(object value) {
return true;
}
public IEnumerable<ModelClientValidationRule> GetClientValidationRules(ModelMetadata metadata, ControllerContext context) {
yield return new ModelClientValidationRemoteRule(FormatErrorMessage(metadata.GetDisplayName()), GetUrl(context), HttpMethod, FormatAdditionalFieldsForClientValidation(metadata.PropertyName));
}
}
}
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