security-and-privacy/CanvasBlocker
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Show caller when asking for readout permission

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Get stack and show the caller when asking for readout API permission.

Related to enhancement request to show source where canvas is nested.
https://github.com/kkapsner/CanvasBlocker/issues/8
This commit is contained in:
Jay Satiro 2014-12-06 22:38:07 -05:00
parent a8ff41bd95
commit 74dd775f98
1 changed files with 19 additions and 2 deletions
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21
data/inject.js
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@ -101,10 +101,27 @@
status = askStatus.answer;
}
else {
// console.log("asking");
status = window.confirm(_(changedFunction.mode.askText))? "allow": "block";
//unsafeWindow.console.log("asking");
var callers = new Error().stack.split('\n');
var findme = callers.shift(); // Remove us from the stack
findme = findme.replace(/(:[0-9]+){1,2}$/, ""); // rm line & column
// Eliminate squashed stack. stack may contain 2+ stacks, but why...
for (var i = 0; callers[i]; i++){
if (callers[i].search(findme) == 0){
callers.splice(i, callers.length - i);
break;
}
}
var msg = _(changedFunction.mode.askText);
if (changedFunction.mode.askText === "askForReadoutPermission"){
msg += "\n\nCaller: " + callers[0];
// maybe show full stack here if some pref
//msg += "\n\nFull stack: \n" + callers.join('\n');
}
status = window.confirm(msg) ? "allow": "block";
askStatus.alreadyAsked = true;
askStatus.answer = status;
//unsafeWindow.console.log("asking (done)");
}
}
switch (status){