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diff --git a/lib/ui/ui_info.js b/lib/ui/ui_info.js
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+/**
+ * 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/>.
+ *
+ */
+
+// page mod executing content script at every page load.
+
+var data = require("sdk/self").data;
+var pageMod = require("sdk/page-mod");
+var urlHandler = require("url_handler/url_handler");
+var pageWorker = require("sdk/page-worker");
+var tabs = require("sdk/tabs");
+var prefs = require("addon_management/prefchange");
+
+// contain list of recently found contact links or email addresses.
+var contactList = {};
+
+// constants. Also available in lib/ui_info.js
+const CERTAIN_EMAIL_ADDRESS_FOUND = 'certainEmailAddressFound';
+const UNCERTAIN_EMAIL_ADDRESS_FOUND = 'uncertainEmailAddresFound';
+
+// Looking for contact links
+const CERTAIN_LINK_FOUND = 'certainLinkFound';
+const PROBABLE_LINK_FOUND = 'probableLinkFound';
+const UNCERTAIN_LINK_FOUND = 'uncertainLinkFound';
+const LINK_NOT_FOUND = 'contactLinkNotFound';
+
+// Looking for identi.ca and twitter accounts.
+const TWITTER_LINK_FOUND = 'twitterLinkFound';
+const IDENTICA_LINK_FOUND = 'identicaLinkFound';
+
+// phone number and address
+const PHONE_NUMBER_FOUND = 'phoneNumberFound';
+const SNAIL_ADDRESS_FOUND = 'snailAddressFound';
+
+/**
+ * main pageMod.
+ * Find blocked script in all pages being opened.
+ * Launch the scripts that search for a complaint contact.
+ *
+ */
+
+pageMod.PageMod({
+    include: ['file://*', '*', 'data:*', 'about:*'],
+    contentScriptWhen: 'end',
+
+    contentScriptFile: [
+        data.url('complain/contact_regex.js'),
+        data.url('complain/link_types.js'),
+        data.url('settings/third-party/jquery/jquery.min.js'),
+        data.url('complain/contact_finder.js'),
+        data.url('complain/pagemod_finder.js'),
+        data.url('script_detector/script_detector.js')
+    ],
+
+    onAttach: function onAttach(worker) {
+        if (worker.tab !== undefined && prefs.isComplaintTab()) {
+            // this is a tab.
+            if (!foundInContactList(worker.url)) {
+                // the hostname doesn't appear in the object literal.
+                // run script fetching/complaint feature if applicable.
+                tabProcess(worker);
+            } else {
+                worker.postMessage(foundInContactList(worker.url));
+            }
+        }
+    }
+});
+
+/**
+ * foundInContactList
+ *
+ * Provides link if contact link is found for given url, or else
+ * false.
+ */
+var foundInContactList = function (url) {
+    var hostname = urlHandler.getHostname(url);
+    if (contactList[hostname] !== undefined) {
+        return contactList[hostname];
+    } else {
+        return false;
+    }
+};
+
+/**
+ * tabProcess
+ * Find blocked/accepted scripts, prepare
+ * display panel and complaint panel.
+ */
+var tabProcess = function (worker) {
+    var visitedUrl = {};
+
+    // webmaster email is better than a webpage.
+    worker.emailFound = false;
+    var modUrl = '',
+        searchUrl = '';
+
+    modUrl = worker.url;
+    console.debug('pagemod triggered');
+
+    worker.port.emit('prefs', {
+        complaintEmailSubject: prefs.complaintEmailSubject(),
+        complaintEmailBody: prefs.complaintEmailBody()
+    });
+
+    // send local path to complain button graphic.
+    worker.port.emit('assetsUri',
+                     {'event': 'assets-uri',
+                      'value':  data.url('assets/')});
+    worker.port.emit('pageUrl',
+                     {'event': 'page-url',
+                      'value': modUrl});
+
+    worker.on('message', function (respData) {
+        console.debug('worker is receiving a message', respData.event);
+        var pw;
+
+        worker.on('detach', function () {
+            console.debug('detaching worker');
+            if (pw) {
+                pw.destroy();
+            }
+        });
+        if (respData.contact !== undefined) {
+            // pass the message to the complaint display panel.
+            worker.port.emit('complaintLinkFound', respData);
+        } else if (respData.event === 'complaintSearch') {
+            if (worker.tab) {
+                console.debug('worker tab url', worker.tab.url);
+            }
+            if (!(respData.urlSearch.linkValue in visitedUrl)) {
+                visitedUrl[respData.urlSearch.linkValue] = 1;
+                respData.urlSearch.linkValue = urlHandler.addFragment(
+                    respData.urlSearch.linkValue, 'librejs=true');
+                pw = searchSecondLevelPage(
+                    this, respData.urlSearch.linkValue, this.url);
+            }
+            // currently not needed.
+            /*else {
+              console.debug(respData.urlSearch.linkValue, 'already visited');
+              }*/
+        }
+    });
+};
+
+var searchSecondLevelPage = function(
+    worker, urlToSearch, originalUrl) {
+    return;
+    var originalWorker = worker;
+
+    console.debug('searchSecondLevelPage');
+    console.debug(urlToSearch, 'and', originalUrl);
+
+    if (urlHandler.haveSameHostname(urlToSearch, originalUrl)) {
+        return pageWorker.Page({
+            contentURL: urlToSearch,
+            contentScriptFile: [
+                data.url('complain/contact_regex.js'),
+                data.url('complain/link_types.js'),
+                data.url('settings/third-party/jquery/jquery.min.js'),
+                data.url('complain/contact_finder.js'),
+                data.url('complain/worker_finder.js')
+            ],
+            contentScriptWhen: "end",
+            onMessage: function (respData) {
+                console.debug(JSON.stringify(respData));
+                console.debug(originalWorker.url);
+                originalWorker.postMessage(respData);
+
+                if (respData.event === 'destroy') {
+                    try {
+                        console.debug('destroying worker', this.contentURL);
+                        this.destroy();
+                    } catch (e) {
+                        console.debug('in worker', e);
+                    }
+                }
+            }
+        });
+    }
+};
+
+exports.testModule = {
+    'contactList': contactList,
+    'foundInContactList': foundInContactList,
+    'tabProcess': tabProcess
+};