r9131: started adding the server side code for "AJAJ" (asynchronous javascript and javascript)

This is rather like AJAX, but passes around javascript objects between
the client and server, taking advantage of the fact that we have the
same language on both client and server.
(This used to be commit 5f9e00fb7f36f3351f40da93acfe47c911f6f65f)

1 files changed, 95 insertions, 0 deletions

diff --git a/source4/scripting/libjs/server_call.js b/source4/scripting/libjs/server_call.js
new file mode 100644
index 0000000000..1ed3053206
--- /dev/null
+++ b/source4/scripting/libjs/server_call.js
@@ -0,0 +1,95 @@
+/*
+	server side js functions for handling async calls from js clients
+
+	Copyright Andrew Tridgell 2005
+	released under the GNU GPL Version 2 or later
+*/
+
+libinclude("encoder.js");
+
+/*
+  a remote printf, for displaying stuff on smbd stdout
+*/
+function __server_printf()
+{
+	print(vsprintf(arguments));
+	return undefined;
+}
+
+/*
+  register a new call
+*/
+function __register_call(name, func)
+{
+	var c = this;
+	c.calls[name] = func;
+}
+
+/*
+  run a call sent from the client, and output the returned object (if any)
+*/
+function __run_call() {
+	var c = this;
+	var name = form['func'];
+	if (name == undefined) {
+		println("no function name given in run_call");
+		return;
+	}
+	var args = form['args'];
+	if (args == undefined) {
+		println("no function arguments given in run_call");
+		return;
+	}
+	args = decodeObject(args);
+	if (c.calls[name] == undefined) {
+		println("undefined remote call " + name);
+		return;
+	}
+	var f = c.calls[name];
+	var res;
+	/* oh what a hack - should write a varargs ejs helper */
+	if (args.length == 0) {
+		res = f();
+	} else if (args.length == 1) {
+		res = f(args[0]);
+	} else if (args.length == 2) {
+		res = f(args[0], args[1]);
+	} else if (args.length == 3) {
+		res = f(args[0], args[1], args[2]);
+	} else if (args.length == 4) {
+		res = f(args[0], args[1], args[2], args[3]);
+	} else if (args.length == 5) {
+		res = f(args[0], args[1], args[2], args[3], args[4]);
+	} else if (args.length == 6) {
+		res = f(args[0], args[1], args[2], args[3], args[4], args[5]);
+	} else if (args.length == 7) {
+		res = f(args[0], args[1], args[2], args[3], args[4], args[5], args[6]);
+	} else if (args.length == 8) {
+		res = f(args[0], args[1], args[2], args[3], args[4], args[5], args[6], args[7]);
+	} else {
+		println("too many arguments for remote call: " + name);
+		return;
+	}
+	var repobj = new Object();
+	repobj.res = res;
+	write(encodeObject(repobj));
+}
+
+
+
+/*
+  initialise a server call object
+*/
+function servCallObj()
+{
+	var c = new Object();
+	c.add = __register_call;
+	c.run = __run_call;
+	c.calls = new Object();
+
+	/* add some basic calls */
+	c.add('printf', __server_printf);
+
+	return c;
+}
+