public void Constructor_WithPolicy_AddsTheGivenPolicy()
{
// Arrange
var originalPolicy = new CorsPolicy();
originalPolicy.Origins.Add("http://existing.com");
originalPolicy.Headers.Add("Existing");
originalPolicy.Methods.Add("GET");
originalPolicy.ExposedHeaders.Add("ExistingExposed");
originalPolicy.SupportsCredentials = true;
originalPolicy.PreflightMaxAge = TimeSpan.FromSeconds(12);
// Act
var builder = new CorsPolicyBuilder(originalPolicy);
// Assert
var corsPolicy = builder.Build();
Assert.False(corsPolicy.AllowAnyHeader);
Assert.False(corsPolicy.AllowAnyMethod);
Assert.False(corsPolicy.AllowAnyOrigin);
Assert.True(corsPolicy.SupportsCredentials);
Assert.NotSame(originalPolicy.Headers, corsPolicy.Headers);
Assert.Equal(originalPolicy.Headers, corsPolicy.Headers);
Assert.NotSame(originalPolicy.Methods, corsPolicy.Methods);
Assert.Equal(originalPolicy.Methods, corsPolicy.Methods);
Assert.NotSame(originalPolicy.Origins, corsPolicy.Origins);
Assert.Equal(originalPolicy.Origins, corsPolicy.Origins);
Assert.NotSame(originalPolicy.ExposedHeaders, corsPolicy.ExposedHeaders);
Assert.Equal(originalPolicy.ExposedHeaders, corsPolicy.ExposedHeaders);
Assert.Equal(TimeSpan.FromSeconds(12), corsPolicy.PreflightMaxAge);
}
private CorsPolicy Allow(string origin)
{
var policyBuilder = new CorsPolicyBuilder();
var policy = policyBuilder
.WithOrigins(origin)
.AllowAnyHeader()
.AllowAnyMethod()
.Build();
return policy;
}
/// <summary>
/// Adds a new policy.
/// </summary>
/// <param name="name">The name of the policy.</param>
/// <param name="configurePolicy">A delegate which can use a policy builder to build a policy.</param>
public void AddPolicy(string name, Action<CorsPolicyBuilder> configurePolicy)
{
if (name == null)
{
throw new ArgumentNullException(nameof(name));
}
if (configurePolicy == null)
{
throw new ArgumentNullException(nameof(configurePolicy));
}
var policyBuilder = new CorsPolicyBuilder();
configurePolicy(policyBuilder);
PolicyMap[name] = policyBuilder.Build();
}
public void Constructor_WithNoOrigin()
{
// Arrange & Act
var builder = new CorsPolicyBuilder();
// Assert
var corsPolicy = builder.Build();
Assert.False(corsPolicy.AllowAnyHeader);
Assert.False(corsPolicy.AllowAnyMethod);
Assert.False(corsPolicy.AllowAnyOrigin);
Assert.False(corsPolicy.SupportsCredentials);
Assert.Empty(corsPolicy.ExposedHeaders);
Assert.Empty(corsPolicy.Headers);
Assert.Empty(corsPolicy.Methods);
Assert.Empty(corsPolicy.Origins);
Assert.Null(corsPolicy.PreflightMaxAge);
}
/// <summary>
/// Adds a CORS middleware to your web application pipeline to allow cross domain requests.
/// </summary>
/// <param name="app">The IApplicationBuilder passed to your Configure method.</param>
/// <param name="configurePolicy">A delegate which can use a policy builder to build a policy.</param>
/// <returns>The original app parameter</returns>
public static IApplicationBuilder UseCors(
this IApplicationBuilder app,
Action<CorsPolicyBuilder> configurePolicy)
{
if (app == null)
{
throw new ArgumentNullException(nameof(app));
}
if (configurePolicy == null)
{
throw new ArgumentNullException(nameof(configurePolicy));
}
var policyBuilder = new CorsPolicyBuilder();
configurePolicy(policyBuilder);
return app.UseMiddleware<CorsMiddleware>(policyBuilder.Build());
}
public void Constructor_WithParamsOrigin_InitializesOrigin(string origin)
{
// Arrange
var origins = origin.Split(',');
// Act
var builder = new CorsPolicyBuilder(origins);
// Assert
var corsPolicy = builder.Build();
Assert.False(corsPolicy.AllowAnyHeader);
Assert.False(corsPolicy.AllowAnyMethod);
Assert.False(corsPolicy.AllowAnyOrigin);
Assert.False(corsPolicy.SupportsCredentials);
Assert.Empty(corsPolicy.ExposedHeaders);
Assert.Empty(corsPolicy.Headers);
Assert.Empty(corsPolicy.Methods);
Assert.Equal(origins.ToList(), corsPolicy.Origins);
Assert.Null(corsPolicy.PreflightMaxAge);
}
public void ConstructorWithPolicy_HavingNullPreflightMaxAge_AddsTheGivenPolicy()
{
// Arrange
var originalPolicy = new CorsPolicy();
originalPolicy.Origins.Add("http://existing.com");
// Act
var builder = new CorsPolicyBuilder(originalPolicy);
// Assert
var corsPolicy = builder.Build();
Assert.Null(corsPolicy.PreflightMaxAge);
Assert.False(corsPolicy.AllowAnyHeader);
Assert.False(corsPolicy.AllowAnyMethod);
Assert.False(corsPolicy.AllowAnyOrigin);
Assert.NotSame(originalPolicy.Origins, corsPolicy.Origins);
Assert.Equal(originalPolicy.Origins, corsPolicy.Origins);
Assert.Empty(corsPolicy.Headers);
Assert.Empty(corsPolicy.Methods);
Assert.Empty(corsPolicy.ExposedHeaders);
}
public void DisallowCredential_SetsSupportsCredentials_ToFalse()
{
// Arrange
var builder = new CorsPolicyBuilder();
// Act
builder.DisallowCredentials();
// Assert
var corsPolicy = builder.Build();
Assert.False(corsPolicy.SupportsCredentials);
}
public void SetPreFlightMaxAge_SetsThePreFlightAge()
{
// Arrange
var builder = new CorsPolicyBuilder();
// Act
builder.SetPreflightMaxAge(TimeSpan.FromSeconds(12));
// Assert
var corsPolicy = builder.Build();
Assert.Equal(TimeSpan.FromSeconds(12), corsPolicy.PreflightMaxAge);
}
public void WithExposedHeaders_AddsExposedHeaders()
{
// Arrange
var builder = new CorsPolicyBuilder();
// Act
builder.WithExposedHeaders("exposed1", "exposed2");
// Assert
var corsPolicy = builder.Build();
Assert.Equal(new List<string>() { "exposed1", "exposed2" }, corsPolicy.ExposedHeaders);
}
public void AllowAnyHeaders_AllowsAny()
{
// Arrange
var builder = new CorsPolicyBuilder();
// Act
builder.AllowAnyHeader();
// Assert
var corsPolicy = builder.Build();
Assert.True(corsPolicy.AllowAnyHeader);
Assert.Equal(new List<string>() { "*" }, corsPolicy.Headers);
}
public void WithHeaders_AddsHeaders()
{
// Arrange
var builder = new CorsPolicyBuilder();
// Act
builder.WithHeaders("example1", "example2");
// Assert
var corsPolicy = builder.Build();
Assert.False(corsPolicy.AllowAnyHeader);
Assert.Equal(new List<string>() { "example1", "example2" }, corsPolicy.Headers);
}
public void WithMethods_AddsMethods()
{
// Arrange
var builder = new CorsPolicyBuilder();
// Act
builder.WithMethods("PUT", "GET");
// Assert
var corsPolicy = builder.Build();
Assert.False(corsPolicy.AllowAnyOrigin);
Assert.Equal(new List<string>() { "PUT", "GET" }, corsPolicy.Methods);
}
public void WithOrigins_AddsOrigins()
{
// Arrange
var builder = new CorsPolicyBuilder();
// Act
builder.WithOrigins("http://example.com", "http://example2.com");
// Assert
var corsPolicy = builder.Build();
Assert.False(corsPolicy.AllowAnyOrigin);
Assert.Equal(new List<string>() { "http://example.com", "http://example2.com" }, corsPolicy.Origins);
}
private void ConfigureCors(IServiceCollection services)
{
// For this demo allow everything so we don't have to hastle around
var corsBuilder = new CorsPolicyBuilder();
corsBuilder.AllowAnyHeader();
corsBuilder.AllowAnyMethod();
corsBuilder.AllowAnyOrigin();
corsBuilder.AllowCredentials();
services.AddCors(options =>
{
options.AddPolicy(CORS_POLICY_NAME, corsBuilder.Build());
});
}