1 files changed, 78 insertions, 0 deletions
diff --git a/lib/html_script_finder/url_seen_tester.js b/lib/html_script_finder/url_seen_tester.js
new file mode 100644
index 0000000..d2f38a9
--- /dev/null
+++ b/lib/html_script_finder/url_seen_tester.js
@@ -0,0 +1,78 @@
+/**
+ * GNU LibreJS - A browser add-on to block nonfree nontrivial JavaScript.
+ * *
+ * Copyright (C) 2011, 2012, 2013, 2014 Loic J. Duros
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see  <http://www.gnu.org/licenses/>.
+ *
+ */
+
+var httpRe = /^(http:)/i;
+var httpsRe = /^(https:)/i;
+
+exports.urlSeenTester = {
+    whitelist: {},
+
+    httpToHttps: function (url) {
+        try {
+
+            if (httpRe.test(url)) {
+
+                return url.replace(httpRe, 'https:');
+
+            } else if (httpsRe.test(url)) {
+
+                return url.replace(httpsRe, 'http:');
+
+            } else {
+
+                return url;
+
+            }
+        } catch (x) {
+            console.debug('error', x);
+        }
+    },
+
+    clearUrls: function () {
+        this.whitelist = {};
+    },
+
+    clearUrl: function (url) {
+        if (this.whitelist[url]) {
+
+            // console.debug('disallowing', url);
+            delete this.whitelist[url];
+        }
+    },
+
+    addUrl: function (url) {
+        console.debug('adding', url);
+
+        if (!this.isWhitelisted(url)) {
+
+            console.debug('allowing', url);
+            this.whitelist[url] = true;
+        }
+    },
+
+    isWhitelisted: function (url) {
+        if (this.whitelist[url] || this.whitelist[this.httpToHttps(url)]) {
+            console.debug('found to be whitelisted', url);
+            return true;
+        }
+        return false;
+    }
+
+};