web/server: convert message head and data to canonical form (keyword keys, property lists)

scopes-web.asd

@@ -6,7 +6,7 @@
   :version "0.0.1"
   :homepage "https://www.cyberconcepts.org"
   :description "Web client and server functionality."
-  :depends-on (:clack :dexador :lack :lack-component :lack-app-file
+  :depends-on (:clack :dexador :lack :lack-component :lack-app-file :quri
                :scopes-core)
   :components ((:file "web/client")
                (:file "web/server"))

web/server.lisp

@@ -3,7 +3,8 @@
 (defpackage :scopes/web/server
   (:use :common-lisp)
   (:local-nicknames (:config :scopes/config)
-                    (:core :scopes/core))
+                    (:core :scopes/core)
+                    (:alx :alexandria))
   (:export #:config #:address #:port #:routes
            #:*listener* #:setup #:start #:stop
            #:fileserver #:message-handler))
@@ -44,8 +45,8 @@
 (defun message-handler (ctx env)
   ;(print env)
   ;(print (read-line (getf env :raw-body)))
-  (let ((head (getf env :message-head))
-        (data (read-line (getf env :raw-body))))
+  (let ((head (head env))
+        (data (data env)))
     (format t "~&message head ~s, data ~s~%" head data)
     '(200 (:content-type "text/plain") ("Hello World!"))))
 
@@ -75,3 +76,17 @@
   (let ((ctx (make-instance 'context :config cfg :name (config:name cfg))))
     (start ctx)
     ctx))
+
+;;;; helper functions
+
+(defun as-keyword (s)
+  (intern (string-upcase s) :keyword))
+
+(defun head (env)
+  (let ((head (getf env :message-head)))
+    (mapcar #'(lambda (e) (as-keyword e)) head)))
+
+(defun data (env)
+  (let* ((a1 (quri.decode:url-decode-params (read-line (getf env :raw-body))))
+         (a2 (mapcar #'(lambda (p) (cons (as-keyword (car p)) (cdr p))) a1)))
+    (alx:alist-plist a2)))