/// <summary>
/// Adds an authorization header.
/// </summary>
/// <param name="requestBuilder">A request builder.</param>
/// <param name="methodInfo">A method info.</param>
/// <param name="names">The methods parameter names.</param>
/// <param name="arguments">The methods arguments.</param>
/// <param name="serviceProvider">A <see cref="IServiceProvider"/> instance.</param>
/// <returns>The request builder.</returns>
public static async Task <HttpRequestBuilder> AddAuthorizationHeaderAsync(
this HttpRequestBuilder requestBuilder,
MethodInfo methodInfo,
IEnumerable <string> names,
IEnumerable <object> arguments,
IServiceProvider serviceProvider)
{
var authAttr = methodInfo.GetCustomAttribute <AddAuthorizationHeaderAttribute>() ??
methodInfo.DeclaringType.GetCustomAttribute <AddAuthorizationHeaderAttribute>();
if (authAttr != null)
{
if (authAttr.HeaderValue != null)
{
requestBuilder.AddHeader(
"Authorization",
authAttr.HeaderValue.ExpandString(names, arguments));
}
else
{
var authFactoryType = authAttr.AuthorizationFactoryType ?? typeof(IAuthorizationHeaderFactory);
var authFactory = serviceProvider?.GetService(authFactoryType) as IAuthorizationHeaderFactory;
if (authFactory != null)
{
requestBuilder.AddAuthorizationHeader(
authFactory.GetAuthorizationHeaderScheme(),
await authFactory.GetAuthorizationHeaderValueAsync());
}
}
}
return(requestBuilder);
}
/// <summary>
/// Checks a parameter for any <see cref="SendAsHeaderAttribute"/> attributes.
/// </summary>
/// <param name="requestBuilder">A request builder instance.</param>
/// <param name="attrs">The parameters attributes.</param>
/// <param name="argument">The parameters actual value.</param>
/// <returns>The request builder instance.</returns>
internal static HttpRequestBuilder CheckParameterForSendAsHeader(
this HttpRequestBuilder requestBuilder,
IEnumerable <Attribute> attrs,
object argument)
{
void AddHeader(string name, string format, object arg)
{
if (string.IsNullOrEmpty(format) == false)
{
requestBuilder.AddHeader(
name,
string.Format(format, arg.ToString()));
}
else
{
requestBuilder.AddHeader(
name,
arg.ToString());
}
}
foreach (var attr in attrs.OfType <SendAsHeaderAttribute>())
{
if (typeof(IEnumerable <string>).IsAssignableFrom(argument.GetType()) == true)
{
foreach (var item in (IEnumerable <string>)argument)
{
AddHeader(attr.Name, attr.Format, item);
}
}
else
{
AddHeader(attr.Name, attr.Format, argument);
}
}
return(requestBuilder);
}
/// <summary>
/// Adds the method headers to a <see cref="HttpRequestBuilder"/>.
/// </summary>
/// <param name="requestBuilder">A <see cref="HttpRequestBuilder"/> instance.</param>
/// <param name="method">The <see cref="MethodInfo"/>.</param>
/// <param name="names">A list of keys.</param>
/// <param name="values">A list of values.</param>
/// <returns>The <see cref="HttpRequestBuilder"/> instance.</returns>
public static HttpRequestBuilder AddMethodHeaders(
this HttpRequestBuilder requestBuilder,
MethodInfo method,
IEnumerable <string> names,
IEnumerable <object> values)
{
var headerAttrs = method
.GetCustomAttributes <AddHeaderAttribute>()
.Union(
method.DeclaringType.GetCustomAttributes <AddHeaderAttribute>());
if (headerAttrs.Any() == true)
{
foreach (var attr in headerAttrs)
{
requestBuilder.AddHeader(
attr.Header,
attr.Value.ExpandString(names, values));
}
}
return(requestBuilder);
}
