/// <summary>
/// Checks if an object implementing <see cref="IClaimHolder"/> has a claim.
/// </summary>
/// <param name="claimHolder">The object holding claims.</param>
/// <param name="claim">The claim you want to replace.</param>
/// <returns>Returns true if the claim is present, false otherwise.</returns>
public static bool HasClaim(this IClaimHolder claimHolder, Claim claim)
{
if (claimHolder.Claims == null)
{
claimHolder.Claims = new List <MongoClaim>();
}
return(claimHolder.Claims.Any(e => e.Value == claim.Value && e.Type == claim.Type));
}
/// <summary>
/// Replaces a claim on a claim holder, implementing <see cref="IClaimHolder"/>.
/// </summary>
/// <param name="claimHolder">The object holding claims.</param>
/// <param name="claim">The claim you want to replace.</param>
/// <param name="newClaim">The new claim you want to set.</param>
/// <returns>Returns true if the claim was replaced.</returns>
public static bool ReplaceClaim(this IClaimHolder claimHolder, Claim claim, Claim newClaim)
{
var replaced = false;
claimHolder.Claims.Where(uc => uc.Value == claim.Value && uc.Type == claim.Type).ToList()
.ForEach(oldClaim => {
oldClaim.Type = newClaim.Type;
oldClaim.Value = newClaim.Value;
oldClaim.Issuer = newClaim.Issuer;
replaced |= true;
});
return(replaced);
}
/// <summary>
/// Adds a claim to a claim holder, implementing <see cref="IClaimHolder"/>.
/// </summary>
/// <param name="claimHolder">The object holding claims.</param>
/// <param name="claim">The claim you want to add.</param>
/// <returns>Returns true if the claim was added.</returns>
public static bool AddClaim(this IClaimHolder claimHolder, Claim claim)
{
if (claim == null)
{
throw new ArgumentNullException(nameof(claim));
}
// prevent adding duplicate claims
if (claimHolder.HasClaim(claim))
{
return(false);
}
claimHolder.Claims.Add(claim.ToMongoClaim());
return(true);
}
/// <summary>
/// Removes an IEnumerable of <see cref="Claim"/>s from the <see cref="IClaimHolder"/>.
/// </summary>
/// <param name="claimHolder">The holder of the claims.</param>
/// <param name="claims">The <see cref="Claim"/>s to remove.</param>
/// <returns>True is the claims were successfully removed.</returns>
public static bool RemoveClaims(this IClaimHolder claimHolder, IEnumerable <Claim> claims)
{
var someClaimsRemoved = false;
foreach (var claim in claims)
{
var matchedClaims = claimHolder.Claims.Where(uc => uc.Value == claim.Value && uc.Type == claim.Type)
.ToList();
foreach (var c in matchedClaims)
{
claimHolder.Claims.Remove(c);
someClaimsRemoved |= true;
}
}
return(someClaimsRemoved);
}
/// <summary>
/// Removes a <see cref="Claim"/> from the <see cref="IClaimHolder"/>.
/// </summary>
/// <param name="claimHolder">The holder of the claim.</param>
/// <param name="claim">The <see cref="Claim"/> to remove.</param>
/// <returns>True is the claim was successfully removed.</returns>
public static bool RemoveClaim(this IClaimHolder claimHolder, Claim claim)
{
if (claim == null)
{
throw new ArgumentNullException(nameof(claim));
}
var exists = claimHolder.Claims
.FirstOrDefault(e => e.Value == claim.Value &&
e.Type == claim.Type);
if (exists != null)
{
claimHolder.Claims.Remove(exists);
return(true);
}
return(false);
}
