add `--local` option to `raco start` (closes #143)

pollen/private/command.rkt

@@ -117,13 +117,15 @@ version                print the version" (current-server-port) (make-publish-di
           (displayln (format "rendering ~a" (string-join (map ->string path-args) " ")))
           (apply render-batch path-args)))))
 
+
 (define (handle-start)
-  (define launch-wanted (make-parameter #f))
+  (define launch-wanted #f)
+  (define localhost-wanted #f)
   (define clargs (command-line #:program "raco pollen start"
                                #:argv (vector-drop (current-command-line-arguments) 1) ; snip the 'start' from the front
                                #:once-each
-                               [("--launch" "-l") "Launch browser after start"
-                                                  (launch-wanted #t)]
+                               [("--launch" "-l") "Launch browser after start" (set! launch-wanted #t)]
+                               [("--local") "Restrict access to localhost" (set! localhost-wanted #t)]
                                #:args other-args
                                other-args))
   (define dir (path->directory-path (get-first-arg-or-current-dir clargs)))
@@ -134,9 +136,10 @@ version                print the version" (current-server-port) (make-publish-di
   (when (and port (not (exact-positive-integer? port)))
     (error (format "~a is not a valid port number" port)))
   (parameterize ([current-project-root dir]
-                 [current-server-port (or port default-project-server-port)])
+                 [current-server-port (or port (setup:project-server-port))]
+                 [current-server-listen-ip (and localhost-wanted "127.0.0.1")])
     (displayln "Starting project server ...")
-    ((dynamic-require 'pollen/private/project-server 'start-server) (format "/~a" (setup:main-pagetree dir)) (launch-wanted))))
+    ((dynamic-require 'pollen/private/project-server 'start-server) (format "/~a" (setup:main-pagetree dir)) launch-wanted)))
 
 (define (make-publish-dir-name [arg-command-name #f])
   (let ([user-publish-path (expand-user-path (->path (setup:publish-directory)))])

pollen/private/project-server.rkt

@@ -34,7 +34,7 @@
                    #:launch-browser? open-browser-window?
                    #:servlet-path servlet-path
                    #:port (current-server-port)
-                   #:listen-ip #f
+                   #:listen-ip (current-server-listen-ip)
                    #:servlet-regexp #rx"" ; respond to top level
                    #:command-line? #t
                    #:file-not-found-responder route-404

pollen/private/ts.rktd

@@ -1 +1 @@
-1491857384
+1492021421

pollen/scribblings/raco.scrbl

@@ -69,6 +69,9 @@ If you want to start in the current directory but with a different port, use @li
 
 Adding the optional @exec{-l} or @exec{--launch} switch will open the main project dashboard in your web browser after the project server starts.
 
+Adding the optional @exec{--local} switch will restrict the project server to responding to requests from localhost. (By default, the project server will respond to requests from any client.)
+
+
 @section{@exec{raco pollen render}}
 
 Render all preprocessor source files and then all pagetree files found in the current directory. If none of these files are found, a pagetree will be generated for the directory (which will include all source files) and then rendered.

pollen/setup.rkt

@@ -92,10 +92,10 @@
 
 (define-settable paths-excluded-from-dashboard (map string->path (list "poldash.css" "compiled")))
 
-
 (define-settable project-server-port 8080)
 
 (define+provide current-server-port (make-parameter (project-server-port)))
+(define+provide current-server-listen-ip (make-parameter #f))
 
 (define-settable dashboard-css "poldash.css")