From b7bdb2ef27e9bc59a1e360c9bd51147e9b03bbe6 Mon Sep 17 00:00:00 2001
From: Eric van der Vlist <vdv@dyomedea.com>
Date: Thu, 29 Apr 2021 11:32:07 +0200
Subject: [PATCH] js-options: setSystemId method

---
 oxygen/js-options/hello.js   |  3 +++
 oxygen/js-options/options.js | 21 ++++++++++++++++-----
 2 files changed, 19 insertions(+), 5 deletions(-)

diff --git a/oxygen/js-options/hello.js b/oxygen/js-options/hello.js
index fe69e43..1558e92 100644
--- a/oxygen/js-options/hello.js
+++ b/oxygen/js-options/hello.js
@@ -8,4 +8,7 @@ hello = function () {
 		var value = myOptions[key];
 		Packages.java.lang.System.out.println(key + ' ' + value);
 	}
+	options.setSystemId();
+	Packages.java.lang.System.out.println('options.systemId: ' + options.systemId);
+	Packages.java.lang.System.out.println('options.systemIdDigest: ' + options.systemIdDigest);
 }
\ No newline at end of file
diff --git a/oxygen/js-options/options.js b/oxygen/js-options/options.js
index 59e276f..63706cf 100644
--- a/oxygen/js-options/options.js
+++ b/oxygen/js-options/options.js
@@ -6,16 +6,18 @@ Options = function (authorAccess, namespace) {
 	this.namespace = namespace;
 	this.authorAccess = authorAccess;
 	this.optionsStorage = this.authorAccess.getOptionsStorage();
+	// Consider namespaces as a SYSTEM option
 	if (namespace != Options.SYSTEM) {
-		var systemOptions = new Options(authorAccess, Options.SYSTEM);
-		var namespaces = JSON.parse(systemOptions.getOption(Options.NAMESPACES, '{}'));
+		this.systemOptions = new Options(authorAccess, Options.SYSTEM);
+		var namespaces = JSON.parse(this.systemOptions.getOption(Options.NAMESPACES, '{}'));
 		namespaces[this.namespace] = (new Date()).toISOString();
-		systemOptions.setOption(Options.NAMESPACES, JSON.stringify(namespaces))
+		this.systemOptions.setOption(Options.NAMESPACES, JSON.stringify(namespaces))
 	}
 }
 
 Options.SYSTEM = '__system__';
 Options.NAMESPACES = '__namespaces__';
+Options.SYSTEMIDS = '__systemIds__';
 
 Options.prototype.getOption = function (key, defaultValue) {
 	this.optionsStorage.setOptionsDoctypePrefix(this.namespace);
@@ -49,9 +51,18 @@ Options.prototype.getOptions = function () {
 
 Options.prototype.setSystemId = function(systemID) {
 	if (systemID === undefined) {
-		this.systemID = this.authorAccess.getDocumentController().getAuthorDocumentNode().getSystemID();
+		this.systemId = String(this.authorAccess.getDocumentController().getAuthorDocumentNode().getSystemID());
 	} else {
-		this.systemID = systemID;
+		this.systemId = String(systemID);
 	}
+	var md = java.security.MessageDigest.getInstance("SHA-1");
+	var digestBytes = md.digest(java.lang.String(this.systemId).getBytes(java.nio.charset.Charset.forName("UTF-8")));
+	this.systemIdDigest = javax.xml.bind.DatatypeConverter.printHexBinary(digestBytes);
+	var systemIds = JSON.parse(this.systemOptions.getOption(Options.SYSTEMIDS, '{}'));
+	systemIds[this.systemIdDigest] = {
+		date: (new Date()).toISOString(),
+		systemId: this.systemId
+	}
+	this.systemOptions.setOption(Options.SYSTEMIDS, JSON.stringify(systemIds));
 }