external/uBlock
1
0
Fork 0
mirror of https://github.com/gorhill/uBlock.git synced 2024-11-11 09:31:01 +01:00
Code Issues Projects Releases Packages Wiki Activity

code review: fix recursivity in HTML filtering's procedural selectors

Browse source
This commit is contained in:
Raymond Hill 2017-12-29 10:26:50 -05:00
parent 31791f2dd2
commit 707d7708a1
No known key found for this signature in database
GPG key ID: 25E1490B761470C2
1 changed files with 25 additions and 2 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

27
src/js/html-filtering.js
View file

@ -62,6 +62,11 @@
this.pselector = new PSelector(task[1]);
};
PSelectorIfTask.prototype.target = true;
Object.defineProperty(PSelectorIfTask.prototype, 'invalid', {
get: function() {
return this.pselector.invalid;
}
});
PSelectorIfTask.prototype.exec = function(input) {
var output = [];
for ( var node of input ) {
@ -113,7 +118,6 @@
[ ':xpath', PSelectorXpathTask ]
]);
}
this.invalid = false;
this.raw = o.raw;
this.selector = o.selector;
this.tasks = [];
@ -125,10 +129,16 @@
this.invalid = true;
break;
}
this.tasks.push(new ctor(task));
var pselector = new ctor(task);
if ( pselector instanceof PSelectorIfTask && pselector.invalid ) {
this.invalid = true;
break;
}
this.tasks.push(pselector);
}
};
PSelector.prototype.operatorToTaskMap = undefined;
PSelector.prototype.invalid = false;
PSelector.prototype.prime = function(input) {
var root = input || docRegister;
if ( this.selector !== '' ) {
@ -145,6 +155,19 @@
}
return nodes;
};
PSelector.prototype.test = function(input) {
if ( this.invalid ) { return false; }
var nodes = this.prime(input), AA = [ null ], aa;
for ( var node of nodes ) {
AA[0] = node; aa = AA;
for ( var task of this.tasks ) {
aa = task.exec(aa);
if ( aa.length === 0 ) { break; }
}
if ( aa.length !== 0 ) { return true; }
}
return false;
};
var logOne = function(details, selector) {
loggerRegister.writeOne(