在Blazor WASM中,如果授权策略无法生效,可能是由于未正确配置授权服务导致的。
解决方法可以如下:
public class CustomAuthorizationService : IAuthorizationService
{
private readonly AuthorizationPolicyProvider _policyProvider;
public CustomAuthorizationService(AuthorizationPolicyProvider policyProvider)
{
_policyProvider = policyProvider;
}
public async Task AuthorizeAsync(ClaimsPrincipal user, object resource, IEnumerable requirements)
{
// 实现授权验证逻辑
}
public async Task GetPolicyAsync(string policyName)
{
return await _policyProvider.GetPolicyAsync(policyName);
}
public async Task AuthorizeAsync(ClaimsPrincipal user, object resource, string policyName)
{
var policy = await _policyProvider.GetPolicyAsync(policyName);
var result = await _policyProvider.AuthorizeAsync(user, resource, policy);
return result.Succeeded;
}
}
builder.Services.AddScoped();
builder.Services.AddSingleton();
builder.Services.AddSingleton();
builder.Services.AddSingleton();
builder.Services.AddSingleton();
builder.Services.AddAuthorization(options =>
{
options.FallbackPolicy = new AuthorizationPolicyBuilder()
.RequireAuthenticatedUser()
.Build();
options.AddPolicy("MyCustomPolicy", policy =>
policy.RequireAssertion(context => true)
);
});
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