/
ios_trace.js
133 lines (108 loc) · 2.96 KB
/
ios_trace.js
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// generic trace
function trace(pattern)
{
var type = (pattern.indexOf(" ") === -1) ? "module" : "objc";
var res = new ApiResolver(type);
var matches = res.enumerateMatchesSync(pattern);
var targets = uniqBy(matches, JSON.stringify);
targets.forEach(function(target) {
if (type === "objc")
traceObjC(target.address, target.name);
else if (type === "module")
traceModule(target.address, target.name);
});
}
// remove duplicates from array
function uniqBy(array, key)
{
var seen = {};
return array.filter(function(item) {
var k = key(item);
return seen.hasOwnProperty(k) ? false : (seen[k] = true);
});
}
// trace ObjC methods
function traceObjC(impl, name)
{
console.log("Tracing " + name);
Interceptor.attach(impl, {
onEnter: function(args) {
// debug only the intended calls
this.flag = 0;
// if (ObjC.Object(args[2]).toString() === "1234567890abcdef1234567890abcdef12345678")
this.flag = 1;
if (this.flag) {
console.warn("\n*** entered " + name);
// print full backtrace
// console.log("\nBacktrace:\n" + Thread.backtrace(this.context, Backtracer.ACCURATE)
// .map(DebugSymbol.fromAddress).join("\n"));
// print caller
console.log("\nCaller: " + DebugSymbol.fromAddress(this.returnAddress));
// print args
if (name.indexOf(":") !== -1) {
console.log();
var par = name.split(":");
par[0] = par[0].split(" ")[1];
for (var i = 0; i < par.length - 1; i++)
printArg(par[i] + ": ", args[i + 2]);
}
}
},
onLeave: function(retval) {
if (this.flag) {
// print retval
printArg("\nretval: ", retval);
console.warn("\n*** exiting " + name);
}
}
});
}
// trace Module functions
function traceModule(impl, name)
{
console.log("Tracing " + name);
Interceptor.attach(impl, {
onEnter: function(args) {
// debug only the intended calls
this.flag = 0;
// var filename = Memory.readCString(ptr(args[0]));
// if (filename.indexOf("Bundle") === -1 && filename.indexOf("Cache") === -1) // exclusion list
// if (filename.indexOf("my.interesting.file") !== -1) // inclusion list
this.flag = 1;
if (this.flag) {
console.warn("\n*** entered " + name);
// print backtrace
console.log("\nBacktrace:\n" + Thread.backtrace(this.context, Backtracer.ACCURATE)
.map(DebugSymbol.fromAddress).join("\n"));
}
},
onLeave: function(retval) {
if (this.flag) {
// print retval
printArg("\nretval: ", retval);
console.warn("\n*** exiting " + name);
}
}
});
}
// print helper
function printArg(desc, arg)
{
try {
console.log(desc + ObjC.Object(arg));
}
catch(err) {
console.log(desc + arg);
}
}
// usage examples
if (ObjC.available) {
trace("*[FireflyTestLoginViewController *]")
// trace("*[FireflySecurityUtil *]")
// trace("*[ *ncrypt*]");
// trace("exports:libSystem.B.dylib!CCCrypt");
// trace("exports:libSystem.B.dylib!open");
// trace("exports:*!open*");
} else {
send("error: Objective-C Runtime is not available!");
}