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/**
* GNU LibreJS - A browser add-on to block nonfree nontrivial JavaScript.
* *
* Copyright (C) 2017, 2018 NateN1222 <nathannichols454@gmail.com>
* Copyright (C) 2018 Ruben Rodriguez <ruben@gnu.org>
*
* 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/>.
*
*/
//TODO: there is a known bug involving "forget preference" not working correctly.
/**
*
* Sets global variable "webex" to either "chrome" or "browser" for
* use on Chrome or a Firefox variant.
*
* Change this to support a new browser that isn't Chrome or Firefox,
* given that it supports webExtensions.
*
* (Use the variable "webex" for all API calls after calling this)
*/
var PRINT_DEBUG = false;
function dbg_print(a,b){
if(PRINT_DEBUG == true){
if(b === undefined){
console.log(a);
} else{
console.log(a,b);
}
}
}
var webex;
function set_webex(){
if(typeof(browser) == "undefined"){
webex = chrome;
} else{
webex = browser;
}
}
set_webex();
var myPort = webex.runtime.connect({name:"port-from-cs"});
var current_blocked_data;
/*
* Makes a button appear that calls a function when you press it.
*
* I copied and pasted this from something else I wrote. It's quite useful.
*
*/
var button_i = 0;
function new_debug_button(name_text,callback){
if(document.getElementById("abc123_main_div") === null){
var to_insert = '<div style="opacity: 0.5; font-size: small; z-index: 2147483647; position: fixed; right: 1%; top: 4%;" id="abc123_main_div"></div>';
document.body.insertAdjacentHTML('afterbegin', to_insert);
}
var button_html = '<input id="abc123_button_' + button_i + '" value="' + name_text +'"type="button"></input><br>';
document.getElementById("abc123_main_div").insertAdjacentHTML('afterbegin', button_html);
document.getElementById("abc123_button_"+button_i).addEventListener("click",callback);
button_i = button_i + 1;
}
/*
* Takes in the script data and color of h2 element
* Writes to category specified by "name" as used in HTML
* (name will probably either be "blacklisted", "whitelisted", "accepted", or "blocked")
*/
function write_elements(data,name,color){
var url = data["url"];
var button_html = '<div style="display:none; float:left;"><input id="temp" type="button" value="blacklist"></input></div>';
var button_html_2 = '<div style="display:none;float:left;"><input id="temp2" type="button" value="whitelist"></input></div>';
var button_html_3 = '<div style="display:none;float:left;"><input id="temp3" type="button" value="forget preference"></input></div>';
var heading = document.getElementById(name).getElementsByTagName("h2")[0];
var list = document.getElementById(name).getElementsByTagName("ul")[0];
if(typeof(data[name]) == "undefined" || data[name].length == 0){
// default message
list.innerHTML = "<li>No "+ name +" scripts on this page.</li>"
data[name] = [];
} else{
heading.innerHTML = "<h2 class='blocked-js'>List of <div style='display:inline; color:"+color+";'>" + name.toUpperCase() + "</div> javascript in " + data["url"]+":</h2>";
}
// Iterate over data[name] and generate list
for(var i = 0; i < data[name].length; i++){
list.innerHTML += "<li><a href='"+data[name][i][0]+"'><b>"+data[name][i][0]+ "</a>:</b><br>" + data[name][i][1]+"<br>"+button_html+"\n"+button_html_2+"\n"+button_html_3+"</li>";
document.getElementById("temp").id = name+"_"+i;
document.getElementById("temp2").id = name+"_2_"+i;
document.getElementById("temp3").id = name+"_3_"+i;
}
if(data[name].length != 0){
// add click listeners to the buttons
for(var i = 0; i < data[name].length; i++){
// Make sure this causes generate_html to get called again with updated data
document.getElementById(name+"_"+i).addEventListener("click",function(info){
var temp = current_blocked_data[name][parseInt(info.target.id.match(/\d/g)[0])];
console.log("Moving script " + temp[0] + " to blacklist");
var script_name = this.parentElement.parentElement.parentElement.parentElement.id;
myPort.postMessage({"blacklist": temp});
});
document.getElementById(name+"_2_"+i).addEventListener("click",function(info){
var temp = current_blocked_data[name][parseInt(info.target.id.match(/\d+/g)[1])];
console.log("Moving script " + temp[0] + " to whitelist");
var script_name = this.parentElement.parentElement.parentElement.parentElement.id;
myPort.postMessage({"whitelist": temp});
});
document.getElementById(name+"_3_"+i).addEventListener("click",function(info){
var temp = current_blocked_data[name][parseInt(info.target.id.match(/\d/g)[1])];
console.log("Forget preferences for script " + temp[0]);
var script_name = this.parentElement.parentElement.parentElement.parentElement.id;
//this.parentElement.parentElement.getElementsByTagName("b")[0].insertAdjacentHTML("beforebegin","<h3>Refresh the page to revaluate this script.</h3>");
myPort.postMessage({"forget": temp});
});
}
}
}
/**
* displays the button specified by HTML string "button"
*/
var template = '<tr><td id="c1"></td><td id="c2"></td></tr>';
var lr_flag = true;
var button_num = 0;
function write_button(button,callback){
if(document.getElementById("buttons_table").innerHTML.indexOf(button) != -1){
return;
}
var id = "buttonno_"+button_num;
if(lr_flag){
document.getElementById("buttons_table").insertAdjacentHTML("beforeend",template);
document.getElementById("c1").insertAdjacentHTML("beforeend","<div id='"+id+"'>" + button + "</div>");
document.getElementById("c1").id = "cell_"+button_num;
}else{
var temp = document.getElementById("c2");
temp.id = "cell_"+button_num;
temp.insertAdjacentHTML("beforeend","<div id='"+id+"'>" + button + "</div>");
}
button_num = button_num+1;
lr_flag = !lr_flag;
document.getElementById(id).addEventListener("click",callback);
}
/**
* update the HTML of the pop-up window.
* If return_HTML is true, it returns the HTML of the popup window without updating it.
* example input:
*
* var example_input = {
* "accepted": [["FILENAME 1","REASON 1"],["FILENAME 2","REASON 2"]],
* "blocked": [["FILENAME 1","REASON 1"],["FILENAME 2","REASON 2"]],
* "whitelisted": [["FILENAME 1","REASON 1"],["FILENAME 2","REASON 2"]],
* "blacklisted": [["FILENAME 1","REASON 1"],["FILENAME 2","REASON 2"]],
* "url":"example.com"
* };
*
*/
function generate_HTML(blocked_data){
current_blocked_data = blocked_data;//unused?
// This should send a message to invoke the content finder
var button_complain = '<a id="complain-contact" class="button white" href="#">Complain to site owner</a>';
// This should update the persistent options
var button_allow_all = '<a id="allow-button" class="button white" href="#">'+"Add page's domain to whitelist"+'</a>';
// This will call "Forget preferences" on every script.
var button_block_nonfree = '<a id="disallow-button" class="button white" href="#">'+"Remove page's domain from whitelist"+'</a>';
// This should send a message that calls "open_popup_tab()" in the background script
var button_new_tab = '<a id="open-in-tab" class="button white" href="#">Open this report in a new tab</a>';
var to_clr = document.getElementsByClassName("blocked-js");
for(var i = 0; i < to_clr.length; i++){
to_clr[i].innerHTML = "";
}
dbg_print("REGEN HTML:");
dbg_print(blocked_data);
write_elements(blocked_data,"accepted","green");
write_elements(blocked_data,"whitelisted","green");
write_elements(blocked_data,"blocked","red");
write_elements(blocked_data,"blacklisted","red");
if( blocked_data["blacklisted"].length != 0 || blocked_data["blocked"].length != 0 ||
blocked_data["whitelisted"].length != 0 || blocked_data["accepted"].length != 0){
write_button(button_allow_all,function(){
myPort.postMessage({"allow_all": blocked_data});
});
write_button(button_block_nonfree,function(){
myPort.postMessage({"block_all": blocked_data});
});
write_button(button_complain,function(){
myPort.postMessage({"invoke_contact_finder": blocked_data});
});
write_button(button_new_tab,function(){
myPort.postMessage({"open_popup_tab": blocked_data});
});
} else{
write_button(button_new_tab,function(){
myPort.postMessage({"open_popup_tab": blocked_data});
});
}
}
myPort.onMessage.addListener(function(m) {
if(m["show_info"] !== undefined){
generate_HTML(m["show_info"]);
}
});
// Sends a message that tells the background script the window is open
function onGot(tabInfo) {
myPort.postMessage({"tab_info": tabInfo});
}
var gettingCurrent = webex.tabs.getCurrent(onGot);
function print_local_storage(){
myPort.postMessage({"printlocalstorage": true});
}
function delete_local_storage(){
myPort.postMessage({"deletelocalstorage":true});
}
//new_debug_button("Print local storage",print_local_storage);
//new_debug_button("Clear local storage",delete_local_storage);
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