From 7c618d3a6f71684a11efc4998429bec289880c72 Mon Sep 17 00:00:00 2001
From: Witold Filipczyk <witekfl@poczta.onet.pl>
Date: Thu, 6 May 2021 15:40:17 +0200
Subject: [PATCH] [js] location.origin

---
 src/ecmascript/spidermonkey/location.c | 40 ++++++++++++++++++++++++++
 test/ecmascript/location.html          |  1 +
 2 files changed, 41 insertions(+)

diff --git a/src/ecmascript/spidermonkey/location.c b/src/ecmascript/spidermonkey/location.c
index e8fdf705..5c57d5a5 100644
--- a/src/ecmascript/spidermonkey/location.c
+++ b/src/ecmascript/spidermonkey/location.c
@@ -156,6 +156,7 @@ history_go(JSContext *ctx, unsigned int argc, JS::Value *rval)
 
 static bool location_get_property_href(JSContext *ctx, unsigned int argc, JS::Value *vp);
 static bool location_set_property_href(JSContext *ctx, unsigned int argc, JS::Value *vp);
+static bool location_get_property_origin(JSContext *ctx, unsigned int argc, JS::Value *vp);
 static bool location_get_property_pathname(JSContext *ctx, unsigned int argc, JS::Value *vp);
 static bool location_set_property_pathname(JSContext *ctx, unsigned int argc, JS::Value *vp);
 static bool location_get_property_port(JSContext *ctx, unsigned int argc, JS::Value *vp);
@@ -186,6 +187,7 @@ enum location_prop {
 };
 JSPropertySpec location_props[] = {
 	JS_PSGS("href",	location_get_property_href, location_set_property_href, JSPROP_ENUMERATE),
+	JS_PSG("origin",	location_get_property_origin, JSPROP_ENUMERATE),
 	JS_PSGS("pathname",	location_get_property_pathname, location_set_property_pathname, JSPROP_ENUMERATE),
 	JS_PSGS("port",	location_get_property_port, location_set_property_port, JSPROP_ENUMERATE),
 	JS_PSGS("protocol",	location_get_property_protocol, location_set_property_protocol, JSPROP_ENUMERATE),
@@ -232,6 +234,44 @@ location_get_property_href(JSContext *ctx, unsigned int argc, JS::Value *vp)
 	return true;
 }
 
+static bool
+location_get_property_origin(JSContext *ctx, unsigned int argc, JS::Value *vp)
+{
+	JS::CallArgs args = CallArgsFromVp(argc, vp);
+	JS::RootedObject hobj(ctx, &args.thisv().toObject());
+
+	struct view_state *vs;
+	JSCompartment *comp = js::GetContextCompartment(ctx);
+
+	if (!comp) {
+		return false;
+	}
+
+	struct ecmascript_interpreter *interpreter = JS_GetCompartmentPrivate(comp);
+
+	/* This can be called if @obj if not itself an instance of the
+	 * appropriate class but has one in its prototype chain.  Fail
+	 * such calls.  */
+	if (!JS_InstanceOf(ctx, hobj, &location_class, NULL))
+		return false;
+
+	vs = interpreter->vs;
+	if (!vs) {
+		return false;
+	}
+
+	char *str = get_uri_string(vs->uri, URI_SERVER);
+
+	if (!str) {
+		return false;
+	}
+
+	args.rval().setString(JS_NewStringCopyZ(ctx, str));
+	mem_free(str);
+
+	return true;
+}
+
 static bool
 location_get_property_pathname(JSContext *ctx, unsigned int argc, JS::Value *vp)
 {
diff --git a/test/ecmascript/location.html b/test/ecmascript/location.html
index 59bfaec0..333e01c0 100644
--- a/test/ecmascript/location.html
+++ b/test/ecmascript/location.html
@@ -1,3 +1,4 @@
+<p><button onclick="javascript:{ alert(location.origin); }">Display location.origin.</button></p>
 <p><button onclick="javascript:{ alert(location.pathname); }">Display location.pathname.</button></p>
 <p><button onclick="javascript:{ alert(location.port); }">Display location.port.</button></p>
 <p><button onclick="javascript:{ alert(location.search); }">Display location.search.</button></p>