74 lines
2.4 KiB
Common Lisp
74 lines
2.4 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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(:export #:config #:address #:port #:routes
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#:*listener* #:setup #:start #:stop
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#:fileserver #:message-handler))
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(in-package :scopes/web/server)
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(defclass config (config:base)
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((config:env-slots :initform '(address port))
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(config:setup :initform #'setup)
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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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;;;; listener = server process
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(defun app (ctx 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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:silent t))))
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(defun stop (ctx)
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(clack:stop (listener ctx)))
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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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(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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;(format t "~&file path: ~s~%" (merge-pathnames rel-path doc-root))
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(lack/component:call file-app env)))
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(defun message-handler (ctx env)
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(print env)
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'(200 (:content-type "text/plain") ("Hello World!")))
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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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;(format t "~&route: ~s~%" r)
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(return-from select-app
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#'(lambda ()
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(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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;(format t "~&match: pattern ~s, p ~s" pattern p)
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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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;;;; server context (= service)
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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 (make-instance 'context :config cfg :name (config:name cfg))))
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(start ctx)
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ctx))
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