antojoseph / frida-android-hooks Goto Github PK

Dalvik.perform？

Frida 的api不是只有Java.perform么 ？

do this:
var s = Java.use('java.lang.String');
var ss2 = s.$new('str');
ss2.$dispose();

get the error info:
{u'columnNumber': 1, u'description': u'Error: Not allowed outside Java.perform() callback', u'fileName': u'frida/node_modules/frida-java/index.js', u'lineNumber': 79, u'type': u'error', u'stack': u'Error: Not allowed outside Java.perform() callback\n at d (frida/node_modules/frida-java/index.js:79)\n at frida/node_modules/frida-java/index.js:355\n at script2.js:29\n at call (native)\n at c (input:1)'}

Java.perform(function () {
var Activity = Java.use("android.app.Activity");
var Exception = Java.use("java.lang.Exception"); //ok
Activity.onResume.implementation = function () {
var Exception = Java.use("java.lang.Exception"); //error outside java.perform()

    throw Exception.$new("Oh noes!");
};

});

When I tried to run command python hook_webview_frida_example.py I meet this error on both python version 2 and version 3:

File "hook_webview_frida_example.py", line 37
    script.on('message',get_messages_from_js)