Hash :
57c1d314
Author :
Thomas de Grivel
Date :
2017-06-21T11:27:42
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47
(in-package #:gravatar)
(defvar +base-uri+ "https://secure.gravatar.com/"
"Why would we ever _not_ use SSL?")
(defun hash (email)
(ironclad:byte-array-to-hex-string
(ironclad:digest-sequence :md5
(trivial-utf-8:string-to-utf-8-bytes
(string-downcase (string-trim '(#\Space)
email))))))
(defun image-url (email &key size default force-default-p rating)
"DEFAULT may be either a URL to your own image, or one of :404, :mm,
:identicon, :monsterid, :wavatar, or :retro. RATING may be one of :g, :pg,
:r, or :x."
(let ((parameters ()))
(when size (push `("s" . ,(format nil "~d" size)) parameters))
(typecase default
(keyword (push `("d" . ,(string-downcase default)) parameters))
(string (push `("d" . ,default) parameters)))
(when force-default-p (push '("f" . "y") parameters))
(when rating (push `("r" . ,(string-downcase rating)) parameters))
(format nil "~Aavatar/~A~@[?~A~]"
+base-uri+
(hash email)
(drakma::alist-to-url-encoded-string parameters
:utf-8
#'drakma:url-encode))))
(defun generate-profile-url (email type parameters)
(format nil "~Ag2-~A.~A~@[?~A~]"
+base-uri+
(hash email)
(string-downcase type)
(drakma::alist-to-url-encoded-string parameters
:utf-8)))
(defun profile-url (email js-callback)
(generate-profile-url email
:json
(when js-callback `(("callback" . ,js-callback)))))
(defun qr-code-url (email &key size)
(generate-profile-url email
:qr
(when size `(("s" . ,(format nil "~d" size))))))