:directory (pathname-directory *this-file*)))
(defparameter +templates-root+ (namestring *this-dir*))
-(defparameter +root-url+ "/eow/static/test.html")
+(defparameter +root-url+ "/eow/")
(defparameter +web-root-base+ "/eow")
(defparameter +web-root+ (concatenate 'string +web-root-base+ "/"))
(defparameter +static-web-root+ (concatenate 'string +web-root+ "static/"))
(defparameter +static-files-root+ (concatenate 'string +templates-root+ "static/"))
(defparameter +login-page+ (concatenate 'string +static-web-root+ "login.html"))
+(defparameter +root-page-file+ "root.html")
(defun string-starts-with (string prefix)
;; (from Hunchentoot)
(defun serve-static ()
"Handle a request for a file under static/ directory"
- (let* ((script-name (script-name))
+ (let* ((script-name (hunchentoot:script-name hunchentoot:*request*))
(fname (subseq script-name (length +static-web-root+)))
(fullname (concatenate 'string +static-files-root+ fname)))
- (handle-static-file fullname)))
+ (hunchentoot:handle-static-file fullname)))
(defclass session ()
((update-queue
:accessor update-queue
:initform (locked-queue:create)
:documentation "Updates to be sent to the browser")
+ (update-thread
+ :accessor update-thread
+ :initform nil
+ :documentation "COMET thread waiting for updates of non-NIL")
(connection
:accessor connection
:documentation "Connection to the empire game server")))
session))
(defgeneric send (session string))
-(defgeneric prompt (session minutes btus))
+(defgeneric prompt (session string))
(defgeneric data (session message))
+(defvar *empire-session*)
+
+(defmacro with-session (&body body)
+ `(let ((*empire-session* (hunchentoot:session-value 'session)))
+ (if *empire-session*
+ (progn ,@body)
+ (hunchentoot:redirect +login-page+))))
+
(defun update ()
"Send stream of updates to client"
- (let ((s (session-value `session)))
- (locked-queue:dequeue (update-queue s))))
+ (with-session
+ (when (update-thread *empire-session*)
+ (empire-log:info "~a: Killing update thread ~a." *empire-session* (update-thread *empire-session*))
+ (sb-thread:terminate-thread (update-thread *empire-session*)))
+ (setf (update-thread *empire-session*) sb-thread:*current-thread*)
+ (let ((next-updates (locked-queue:dequeue-all (update-queue *empire-session*))))
+ ; There's a race here. The next update thread might kill this one before
+ ; sending the reply.
+ (setf (update-thread *empire-session*) nil)
+ (nconc next-updates (list (parenscript:ps* '(next))))
+ (apply #'concatenate 'string next-updates))))
(defmethod send ((s session) string)
"Push a javascript update fragment to the client."
(locked-queue:enqueue (update-queue s) string))
-(defmethod prompt ((s session) minutes btus)
- (send s (format nil "prompt(~a,~a);~%" minutes btus)))
+(defmethod prompt ((s session) p)
+ (send s (parenscript:ps* `(prompt ,p))))
(defmethod data ((s session) message)
(send s (parenscript:ps* `(msg ,message))))
-(defun login ()
- (let ((s (session-value 'session)))
- (if s
- (redirect +root-url+)
- (redirect +login-page+))))
-
;; destination of login-form
(defun login-action ()
(handler-case
- (let ((session (make-session (post-parameter "username")
- (post-parameter "password"))))
- (setf (session-value 'session) session)
- (redirect +root-url+))
+ (let* ((user (hunchentoot:post-parameter "username"))
+ (pass (hunchentoot:post-parameter "password"))
+ (session (make-session user pass)))
+ (setf (hunchentoot:session-value 'session) session)
+ (empire-log:info "~a: User ~a logging in." session user)
+ (hunchentoot:redirect +root-url+))
(usocket:connection-refused-error (e)
(format nil "Connection error: ~a~%" e))))
(defun command-action ()
- (let ((s (session-value 'session)))
- (empire:send-message (connection s) (get-parameter "q"))))
+ (with-session
+ (empire:command (connection *empire-session*) (hunchentoot:get-parameter "q"))
+ "ok"))
+
+(defun root-page ()
+ (with-session
+ (hunchentoot:handle-static-file (concatenate 'string +static-files-root+ +root-page-file+))))
(defun dispatch (request)
- (let ((script-name (script-name request)))
+ (let ((script-name (hunchentoot:script-name request)))
(cond
((not (string-starts-with script-name +web-root+)) nil) ; do not handle this request
((string= script-name "/eow/update") 'update)
((string= script-name "/eow/login") 'login-action)
((string= script-name "/eow/command") 'command-action)
((or (string-equal script-name +web-root-base+)
- (string-equal script-name +web-root+)) 'login) ; go to the start page
+ (string-equal script-name +web-root+)) 'root-page) ; go to the start page
((string-starts-with script-name +static-web-root+) 'serve-static)))) ; serve static file
(defun start ()
- (pushnew 'dispatch *dispatch-table* :test #'eq))
-
+ (empire-log:info "Startup")
+ (pushnew 'dispatch hunchentoot:*dispatch-table* :test #'eq))