notification programs that work over the local network

coding-terminal

@@ -1,4 +1,4 @@
 #!/bin/zsh
-#xrdb -merge ~/.Xresources.green
-urxvt -fn xft:inconsolata-26:hinting=false -letsp 1 -im none -b 26 &
-#xrdb -merge ~/.Xresources
+xrdb -merge ~/.Xresources.green
+urxvt -fn xft:inconsolata-26:antialias=true:hinting=true -letsp 1 -b 26 &
+xrdb -merge ~/.Xresources

host-cwd.sh

@@ -1,2 +1,2 @@
 #!/bin/zsh
-ruby -run -e httpd . -p 8080 --bind-address=192.168.1.2
+ruby -run -e httpd . -p 8080 --bind-address=`~/Scripts/current-ip.sh`

makefile-notifyd

@@ -0,0 +1 @@
+csc net-notifyd.scm -o net-notifyd -I/usr/include/gdk-pixbuf-2.0 -I/usr/include/glib-2.0 -I/usr/lib/x86_64-linux-gnu/glib-2.0/include -I/usr/include/libpng16 -I/usr/include/x86_64-linux-gnu -I/usr/include/libmount -I/usr/include/blkid -L -lnotify -L -lgio-2.0 -L -lgdk_pixbuf-2.0 -L -lgobject-2.0 -L -lglib-2.0

net-notify.scm

@@ -0,0 +1,30 @@
+(import scheme)
+(import (chicken base))
+(import srfi-1)
+(import srfi-13)
+(import socket)
+(import (chicken process-context))
+
+(define broadcast-socket #f)
+
+(define bind-address (inet-address "0.0.0.0" #f))
+
+(define broadcast-address (inet-address "255.255.255.255" 3742))
+
+(define (broadcast-setup)
+  (set! broadcast-socket (socket af/inet sock/dgram))
+  (set! (so-broadcast? broadcast-socket) #t)
+  (socket-bind broadcast-socket bind-address))
+
+(define (broadcast-send str)
+  (socket-send-to broadcast-socket str broadcast-address))
+
+(define (main)
+  (let ((args (drop (argv) 1)))
+    (if (null? args)
+	(begin (display "usage: net-notify <message>")
+	       (newline))
+	(begin (broadcast-setup)
+	       (broadcast-send (string-concatenate (intersperse (cons "net-notify:" args) " ")))))))
+
+(main)

net-notifyd.scm

@@ -0,0 +1,50 @@
+(import scheme)
+(import (chicken base))
+(import srfi-1)
+(import srfi-13)
+(import socket)
+
+(foreign-declare "#include <libnotify/notify.h>")
+
+(define (forever tn)
+  (tn)
+  (forever tn))
+
+(define-syntax thunk
+  (syntax-rules ()
+    ((_ exp ...)
+     (lambda () exp ...))))
+
+(define notify
+  (foreign-lambda* void ((c-string title) (c-string body))
+    "NotifyNotification *notif;\n"
+    "notify_init(title);\n"
+    "notif = notify_notification_new(title, body, NULL);\n"
+    "notify_notification_show(notif, NULL);\n"
+    "g_object_unref(notif);\n"))
+
+(define broadcast-socket #f)
+
+(define broadcast-address (inet-address "255.255.255.255" 3742))
+
+(define (broadcast-setup)
+  (set! broadcast-socket (socket af/inet sock/dgram))
+  (set! (so-broadcast? broadcast-socket) #t)
+  (socket-bind broadcast-socket broadcast-address))
+
+(define (broadcast-receive)
+  (condition-case (socket-receive broadcast-socket 256)
+    ((exn timeout) (broadcast-receive))))
+
+(define (net-notify-listen)
+  (let ((response (broadcast-receive)))
+    (if (equal? (string-take response 12) "net-notify: ")
+	(string-drop response 12)
+	(net-notify-listen))))
+
+(define (main)
+  (broadcast-setup)
+  (forever (thunk (notify "net-notify" (net-notify-listen)))))
+
+(main)
+