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useuse.js
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175 lines (145 loc) · 3.89 KB
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import 'dummy';
function t1() {
const obj = {};
sink(obj.field);
obj.field = source('t1.1');
sink(obj.field); // $ hasValueFlow=t1.1
obj.field = "safe";
sink(obj.field); // $ SPURIOUS: hasValueFlow=t1.1
obj.field = source('t1.2');
sink(obj.field); // $ hasValueFlow=t1.2 SPURIOUS: hasValueFlow=t1.1
}
function t2() {
let obj;
if (Math.random()) {
obj = {};
sink(obj.field);
} else {
obj = {};
obj.field = source('t2.1');
sink(obj.field); // $ hasValueFlow=t2.1
}
sink(obj.field); // $ hasValueFlow=t2.1
}
function t3() {
function inner(obj) {
sink(obj.foo); // $ hasValueFlow=t3.2 hasValueFlow=t3.1
}
inner({foo: source('t3.1')});
let obj = {};
obj.foo = source('t3.2');
inner(obj);
}
function t4() {
class C {
constructor(x) {
this.foo = x;
sink(this.foo); // $ hasValueFlow=t4.1
}
}
const c = new C(source('t4.1'));
sink(c.foo); // $ hasValueFlow=t4.1
}
function t5() {
class C {
field = source('t5.1')
constructor() {
sink(this.field); // $ hasValueFlow=t5.1
}
}
const c = new C();
sink(c.field); // $ hasValueFlow=t5.1
}
function t6() {
function invoke(fn) {
fn();
}
class C {
constructor(x, y) {
this.x = x;
invoke(() => {
this.y = y;
});
sink(this.x); // $ hasValueFlow=t6.1
sink(this.y); // $ hasValueFlow=t6.2
invoke(() => {
sink(this.x); // $ hasValueFlow=t6.1
sink(this.y); // $ hasValueFlow=t6.2
});
this.methodLike = function() {
sink(this.x); // $ hasValueFlow=t6.1
sink(this.y); // $ hasValueFlow=t6.2
}
}
}
const c = new C(source('t6.1'), source('t6.2'));
sink(c.x); // $ hasValueFlow=t6.1
sink(c.y); // $ hasValueFlow=t6.2
c.methodLike();
}
function t7() {
class Base {
constructor(x) {
this.field = x;
sink(this.field); // $ hasTaintFlow=t7.1
}
}
class Sub extends Base {
constructor(x) {
super(x + '!');
sink(this.field); // $ hasTaintFlow=t7.1
}
}
const c = new Sub(source('t7.1'));
sink(c.field); // $ hasTaintFlow=t7.1
}
function t8() {
function foo(x) {
const obj = {};
obj.field = x;
sink(obj.field); // $ hasTaintFlow=t8.1
if (obj) {
sink(obj.field); // $ hasTaintFlow=t8.1
} else {
sink(obj.field);
}
if (!obj) {
sink(obj.field);
} else {
sink(obj.field); // $ hasTaintFlow=t8.1
}
if (!obj || !obj) {
sink(obj.field);
} else {
sink(obj.field); // $ hasTaintFlow=t8.1
}
}
// The guards used above are specific to taint-tracking, to ensure only taint flows in
const taint = source('t8.1') + ' taint';
foo(taint);
}
function t9() { // same as t8 but with a SanitizerGuard that isn't just a variable access
function foo(x) {
const obj = {};
obj.field = x;
sink(obj.field); // $ hasTaintFlow=t9.1
if (typeof obj !== "undefined") {
sink(obj.field); // $ hasTaintFlow=t9.1
} else {
sink(obj.field);
}
if (typeof obj === "undefined") {
sink(obj.field);
} else {
sink(obj.field); // $ hasTaintFlow=t9.1
}
if (typeof obj === "undefined" || typeof obj === "undefined") {
sink(obj.field);
} else {
sink(obj.field); // $ hasTaintFlow=t9.1
}
}
// The guards used above are specific to taint-tracking, to ensure only taint flows in
const taint = source('t9.1') + ' taint';
foo(taint);
}