/// <summary>
/// Converts an OpenID to a libravatar URI
/// </summary>
/// <param name="openid">
/// The OpenID associated with the avatar you want to retrieve
/// </param>
/// <param name="options">
/// An AvatarOptions object, which provides various ways to customize the behavior
/// </param>
/// <returns>
/// A URI which points to the user's avatar.
/// </returns>
public static Uri FromOpenID(string openid, AvatarOptions options)
{
var identity = CanonicalizeOpenID(openid);
var hashFunction = (Func <string, string>)SHA256Hash; // MD5 is not supported for OpenID.
return(FromHashedIdentity(hashFunction(identity), options));
}
public static void Main(string[] args)
{
// 1. simple case: email in, gravatar-style output
var uri = AvatarUri.FromEmail( "*****@*****.**" );
Console.WriteLine (uri);
// 2. use a different hash
var uri2 = AvatarUri.FromEmail( "*****@*****.**",
new AvatarOptions { UseSHA256 = true } );
Console.WriteLine( uri2 );
// 3. you can also use HTTPS
var uri3 = AvatarUri.FromEmail( "*****@*****.**",
new AvatarOptions { PreferHttps = true } );
Console.WriteLine( uri3 );
// 4. AvatarOptions is just a normal C# object,
// so you can create one for the options you
// want, and store it / give it a name:
var favoriteOptions = new AvatarOptions {
UseSHA256 = true, PreferHttps = true };
var uri4 = AvatarUri.FromEmail( "*****@*****.**",
favoriteOptions );
Console.WriteLine( uri4 );
// 5. You can do monsters, wavatars, identicons, etc:
var uri5 = AvatarUri.FromEmail( "*****@*****.**",
new AvatarOptions { DefaultImage = AvatarDefaultImages.MonsterID } );
Console.WriteLine( uri5 );
// 6. If you need a size other than the default, you can specify that:
var uri6 = AvatarUri.FromEmail( "*****@*****.**",
new AvatarOptions { Size = 32 } );
Console.WriteLine( uri6 );
}
/// <summary>
/// Converts an email address to a libravatar URI
/// </summary>
/// <param name="email">
/// The email address associated with the avatar you want to retrieve
/// </param>
/// <param name="options">
/// An AvatarOptions object, which provides various ways to customize the behavior
/// </param>
/// <returns>
/// A URI which points to the user's avatar.
/// </returns>
public static Uri FromEmail(string email, AvatarOptions options)
{
var identity = CanonicalizeEmail(email);
var hashFunction = options.UseSHA256 ? (Func <string, string>)SHA256Hash : MD5Hash;
return(FromHashedIdentity(hashFunction(identity), options));
}
static Uri FromHashedIdentity(string hash, AvatarOptions options)
{
var args = new Dictionary <string, string>();
if (options.DefaultImage != null)
{
args["d"] = options.DefaultImage;
}
if (options.Size != null)
{
args["s"] = options.Size.ToString();
}
var baseUri = options.PreferHttps ? options.SecureBaseUri : options.BaseUri;
var uri = baseUri + hash + UriQueryFromArgs(args);
return(new Uri(uri));
}
static Uri FromHashedIdentity( string hash, AvatarOptions options )
{
var args = new Dictionary<string,string>();
if (options.DefaultImage != null)
args["d"] = options.DefaultImage;
if (options.Size != null)
args["s"] = options.Size.ToString();
var baseUri = options.PreferHttps ? options.SecureBaseUri : options.BaseUri;
var uri = baseUri + hash + UriQueryFromArgs(args);
return new Uri(uri);
}
/// <summary>
/// Converts an OpenID to a libravatar URI
/// </summary>
/// <param name="openid">
/// The OpenID associated with the avatar you want to retrieve
/// </param>
/// <param name="options">
/// An AvatarOptions object, which provides various ways to customize the behavior
/// </param>
/// <returns>
/// A URI which points to the user's avatar.
/// </returns>
public static Uri FromOpenID( string openid, AvatarOptions options )
{
var identity = CanonicalizeOpenID(openid);
var hashFunction = (Func<string,string>)SHA256Hash; // MD5 is not supported for OpenID.
return FromHashedIdentity( hashFunction(identity), options );
}
/// <summary>
/// Converts an email address to a libravatar URI
/// </summary>
/// <param name="email">
/// The email address associated with the avatar you want to retrieve
/// </param>
/// <param name="options">
/// An AvatarOptions object, which provides various ways to customize the behavior
/// </param>
/// <returns>
/// A URI which points to the user's avatar.
/// </returns>
public static Uri FromEmail( string email, AvatarOptions options )
{
var identity = CanonicalizeEmail(email);
var hashFunction = options.UseSHA256 ? (Func<string,string>)SHA256Hash : MD5Hash;
return FromHashedIdentity( hashFunction(identity), options );
}
