Updated JWT library, add supports for claim exp, iat, nbf, iss, aud .

library/security/jwt/src/jwt_header.e

@@ -0,0 +1,117 @@
+note
+	description: "[
+			JOSE Header
+			
+			See https://tools.ietf.org/html/rfc7515
+		]"
+	date: "$Date$"
+	revision: "$Revision$"
+
+class
+	JWT_HEADER
+
+inherit
+	ANY
+		redefine
+			default_create
+		end
+
+create
+	default_create,
+	make_from_json
+
+convert
+	string: {READABLE_STRING_8, STRING_8}
+
+feature {NONE} -- Initialization
+
+	default_create
+		do
+			type := "JWT"
+			algorithm := "HS256"
+		end
+
+	make_from_json (a_json: READABLE_STRING_8)
+		do
+			default_create
+			import_json (a_json)
+		end
+
+feature -- Access
+
+	type: READABLE_STRING_8
+			-- Token type (typ) - If present, it is recommended to set this to "JWT".
+
+	content_type: detachable READABLE_STRING_8
+			-- Content type (cty)
+			-- If nested signing or encryption is employed, it is recommended to set this to JWT,
+			-- otherwise omit this field.
+
+	algorithm: READABLE_STRING_8
+			-- Message authentication code algorithm (alg)
+			-- The issuer can freely set an algorithm to verify the signature on the token.
+			-- However, some supported algorithms are insecure.
+
+feature -- Conversion
+
+	string: STRING
+		do
+			create Result.make_empty
+			Result.append ("{%"typ%":%"")
+			Result.append (type)
+			Result.append ("%"")
+			if attached content_type as cty then
+				Result.append (",%"cty%":%"")
+				Result.append (cty)
+				Result.append ("%"")
+			end
+			Result.append (",%"alg%":%"")
+			Result.append (algorithm)
+			Result.append ("%"}")
+		end
+
+feature -- Element change
+
+	set_type (typ: READABLE_STRING_8)
+		do
+			type := typ
+		end
+
+	set_content_type (cty: detachable READABLE_STRING_8)
+		do
+			content_type := cty
+		end
+
+	set_algorithm (alg: detachable READABLE_STRING_8)
+		do
+			if alg = Void then
+				algorithm := "none"
+			else
+				algorithm := alg
+			end
+		end
+
+feature -- Element change
+
+	import_json (a_json: READABLE_STRING_8)
+		local
+			jp: JSON_PARSER
+		do
+			create jp.make_with_string (a_json)
+			jp.parse_content
+			if
+				attached jp.parsed_json_object as jo
+			then
+				if attached {JSON_STRING} jo.item ("typ") as j_typ then
+					set_type (j_typ.unescaped_string_8)
+				end
+				if attached {JSON_STRING} jo.item ("cty") as j_cty then
+					set_content_type (j_cty.unescaped_string_8)
+				end
+				if attached {JSON_STRING} jo.item ("alg") as j_alg then
+					set_algorithm (j_alg.unescaped_string_8)
+				end
+			end
+		end
+
+end