119 lines
3.9 KiB
Common Lisp
119 lines
3.9 KiB
Common Lisp
;;;; cl-scopes/web/server - web server functionality
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(defpackage :scopes/web/server
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(:use :common-lisp)
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(:local-nicknames (:config :scopes/config)
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(:core :scopes/core)
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(:message :scopes/core/message)
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(:response :scopes/web/response)
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(:util :scopes/util)
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(:alx :alexandria))
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(:export #:config #:address #:port #:routes
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#:*listener* #:setup #:start #:stop
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#:content
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#:fileserver #:message-handler
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#:set-cookie))
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(in-package :scopes/web/server)
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(defclass config (config:base)
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((config:setup :initform #'setup)
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(config:shutdown :initform #'stop)
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(address :reader address :initarg :address :initform "localhost")
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(port :reader port :initarg :port :initform "8888")
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(routes :reader routes :initarg :routes :initform nil)))
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;;;; server context (= service), action handlers
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(defclass context (core:context)
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((listener :accessor listener)))
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(defun setup (cfg)
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(let ((ctx (core:default-setup cfg 'context)))
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(start ctx)))
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;;;; listener = server process
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(defun app (ctx env)
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;(handler-case ...
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(let* ((method (getf env :request-method))
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(uri (getf env :request-uri))
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(headers (getf env :headers))
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(accept (gethash "accept" headers))
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(cookies (gethash "cookie" headers)))
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(util:lgi method uri accept cookies))
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;(util:lgd env)
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(funcall (select-app ctx env)))
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(defun start (ctx)
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(let ((cfg (core:config ctx)))
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(setf (listener ctx)
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(clack:clackup #'(lambda (env) (app ctx env))
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:port (parse-integer (port cfg))
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:address (address cfg)
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;:server :woo
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:debug nil
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:use-default-middleware nil
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:silent t))
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(util:lgi (port cfg))
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ctx))
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(defun stop (ctx)
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(clack:stop (listener ctx))
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(util:lgi))
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(defun select-app (ctx env)
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(let ((path (cdr (str:split "/" (getf env :path-info)))))
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(dolist (r (routes (core:config ctx)))
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(when (match (car r) path)
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(setf (getf env :message-head) (nthcdr (length (car r)) path))
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(return-from select-app
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#'(lambda () (apply (cadr r) ctx env (cddr r)))))))
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#'(lambda () (message-handler ctx env)))
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(defun match (pattern path)
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(dolist (e pattern)
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(unless (string= e (pop path))
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(return-from match nil)))
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t)
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(defun fileserver (ctx env &key doc-root)
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(let* ((message-head (getf env :message-head))
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(tail (last message-head)))
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(if (string= (car tail) "")
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(setf (car tail) "index.html"))
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(let* ((rel-path (str:join "/" message-head))
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(file-app (make-instance 'lack/app/file:lack-app-file
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:file rel-path :root doc-root)))
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(lack/component:call file-app env))))
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(defun message-handler (ctx env &key html-responder)
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(let* ((resp (response:setup ctx env :html-responder html-responder))
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(iact (make-instance 'response:interaction :response resp))
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(msg (message:create
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(head env) :data (plist (post-data env)) :customer iact)))
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(util:lgd msg)
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; (check-auth ctx msg env) => (response:render-unauthorized resp)
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(if (core:handle-message ctx msg)
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(response:render resp iact)
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(response:render-not-found resp))))
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;;;; predefined action handlers
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(defun set-cookie (ctx msg)
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(core:echo ctx msg :domain :response :action :set-cookie))
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;;;; helper functions
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(defun head (env)
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(mapcar #'(lambda (e) (util:to-keyword e)) (getf env :message-head)))
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(defun post-data (env)
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(if (getf env :content-length)
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(let* ((raw (getf env :raw-body))
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(str (read-line (flexi-streams:make-flexi-stream raw))))
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(quri.decode:url-decode-params str))))
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(defun plist (alst)
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(let ((a2 (mapcar #'(lambda (p) (cons (util:to-keyword (car p)) (cdr p))) alst)))
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(alx:alist-plist a2)))
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