security-and-privacy/CanvasBlocker
security-and-privacy/CanvasBlocker
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Simplified PDF checking

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This commit is contained in:
kkapsner 2015-04-15 11:39:35 +02:00
parent ba524a896e
commit e639b863dd
3 changed files with 29 additions and 50 deletions
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BIN
canvasblocker.xpi
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56
data/inject.js
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@ -241,49 +241,27 @@
// Communication with main.js
function checkAbout(){
return document.location.protocol === "about:";
}
function checkPDF(blocking){
if (document.contentType.match(/\/pdf$/i)){
self.port.emit("isPDF", blocking);
return true;
}
return false;
}
self.port.on("block", function(force){
if (force || !checkAbout() || !checkPDF("block")){
blockMode.getContext.status = "block";
blockMode.readAPI.status = "allow";
}
self.port.on("block", function(){
blockMode.getContext.status = "block";
blockMode.readAPI.status = "allow";
});
self.port.on("ask", function(force, askOnce){
if (force || !checkAbout() || !checkPDF("askVisible")){
blockMode.getContext.status = "ask";
blockMode.getContext.askStatus.askOnce = askOnce;
blockMode.readAPI.status = "allow";
}
self.port.on("ask", function(askOnce){
blockMode.getContext.status = "ask";
blockMode.getContext.askStatus.askOnce = askOnce;
blockMode.readAPI.status = "allow";
});
self.port.on("blockReadout", function(force){
if (force || !checkAbout() || !checkPDF("blockReadout")){
blockMode.getContext.status = "allow";
blockMode.readAPI.status = "block";
}
self.port.on("blockReadout", function(){
blockMode.getContext.status = "allow";
blockMode.readAPI.status = "block";
});
self.port.on("fakeReadout", function(force){
if (force || !checkAbout() || !checkPDF("fakeReadout")){
blockMode.getContext.status = "allow";
blockMode.readAPI.status = "fake";
}
self.port.on("fakeReadout", function(){
blockMode.getContext.status = "allow";
blockMode.readAPI.status = "fake";
});
self.port.on("askReadout", function(force, askOnce){
if (force || !checkAbout() || !checkPDF("askReadout")){
blockMode.getContext.status = "allow";
blockMode.readAPI.status = "ask";
blockMode.readAPI.askStatus.askOnce = askOnce;
}
self.port.on("askReadout", function(askOnce){
blockMode.getContext.status = "allow";
blockMode.readAPI.status = "ask";
blockMode.readAPI.askStatus.askOnce = askOnce;
});
self.port.on("unblock", function(){
blockMode.getContext.status = "allow";

23
lib/main.js
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@ -87,7 +87,6 @@
});
function checkURL(url){
url = new URL(url);
var mode = "block";
switch (prefs.blockMode){
case "blockEverything":
@ -133,8 +132,18 @@
}
function checkWorker(worker){
try {
var mode = checkURL(worker.url);
worker.port.emit(mode, false, prefs.askOnlyOnce);
var mode;
var url = new URL(worker.url)
if (
(url.protocol === "about:") ||
(prefs.allowPDFCanvas && worker.tab.contentType.match(/\/pdf$/i))
){
mode = "unblock";
}
else {
var mode = checkURL(url);
}
worker.port.emit(mode, prefs.askOnlyOnce);
}
catch (e){
console.log("Error updating " + worker.url + ": " + e.message);
@ -158,14 +167,6 @@
worker.on("detach", function(){
array.remove(workers, this);
});
worker.port.on("isPDF", function(blocking){
if (prefs.allowPDFCanvas){
this.emit("unblock");
}
else {
this.emit(blocking, true, prefs.askOnlyOnce);
}
});
["", "Readout"].forEach(function(type){
["", "Visible", "Invisible"].forEach(function(visibility){
var text = "askFor" + visibility + type + "Permission";