/// <summary>
/// Compose a valid Gravatar Url from email
///
/// see : https://gravatar.com/site/implement/images/
/// for more details
/// </summary>
/// <param name="mailAdd">Address to use</param>
/// <param name="size">By default, images are presented at 80px by 80px</param>
/// <param name="default">
/// 404: do not load any image if none is associated with the email hash, instead return an HTTP 404 (File Not Found) response
/// mm: (mystery-man) a simple, cartoon-style silhouetted outline of a person (does not vary by email hash)
/// identicon: a geometric pattern based on an email hash
/// monsterid: a generated 'monster' with different colors, faces, etc
/// wavatar: generated faces with differing features and backgrounds
/// retro: awesome generated, 8-bit arcade-style pixelated faces
/// blank: a transparent PNG image (border added to HTML below for demonstration purposes)
/// </param>
/// <param name="altText">Alternate text for image (default : Gravatar Image)</param>
/// <returns>url of Gravatar image</returns>
public static string CreateGravatarUrl(string mailAdd,
int size = 80, string @default = "404", string altText = "Gravatar Image")
{
const string gravatarUrl = "<img src='http://www.gravatar.com/avatar/{0}?s={1}&d={2}' alt='{3}'>";
var hash = (string.IsNullOrWhiteSpace(mailAdd)) ? "unknow" : MD5Helpers.GetMd5Hash(mailAdd);
return(string.Format(gravatarUrl, hash, size, @default, altText));
}
/// <summary>
/// Compose a valid Gravatar Url from email
///
/// see : https://fr.gravatar.com/site/implement/images/
/// for more details
/// </summary>
/// <param name="helper">Html Helper context</param>
/// <param name="mailAdd">Address to use</param>
/// <param name="size">By default, images are presented at 80px by 80px</param>
/// <param name="default">
/// 404: do not load any image if none is associated with the email hash, instead return an HTTP 404 (File Not Found) response
/// mm: (mystery-man) a simple, cartoon-style silhouetted outline of a person (does not vary by email hash)
/// identicon: a geometric pattern based on an email hash
/// monsterid: a generated 'monster' with different colors, faces, etc
/// wavatar: generated faces with differing features and backgrounds
/// retro: awesome generated, 8-bit arcade-style pixelated faces
/// blank: a transparent PNG image (border added to HTML below for demonstration purposes)
/// </param>
/// <param name="altText">Alternate text for image (default : Gravatar Image)</param>
/// <param name="cssClass">Add a special class on img tag</param>
/// <returns>url of Gravatar image</returns>
public static MvcHtmlString GravatarImage(this HtmlHelper helper, string mailAdd,
int size = 80, string @default = "404", string cssClass = "", string altText = "Gravatar Image")
{
const string gravatarUrl = "<img src='http://www.gravatar.com/avatar/{0}?s={1}&d={2}' {4} alt='{3}'>";
var hash = (string.IsNullOrWhiteSpace(mailAdd)) ? "unknow" : MD5Helpers.GetMd5Hash(mailAdd);
if (cssClass != "")
{
cssClass = "class='" + cssClass + "'";
}
return(new MvcHtmlString(string.Format(gravatarUrl, hash, size, @default, altText, cssClass)));
}