From 18f7280fd64427654a5fb7a87fad7ea2ee2655e1 Mon Sep 17 00:00:00 2001
From: Iddo <d0dg37h15@gmail.com>
Date: Mon, 23 Apr 2018 19:22:44 +0300
Subject: [PATCH] log strings

---
 log_string_builders_and_string_compare.js | 23 +++++++++++++++++++++++
 1 file changed, 23 insertions(+)
 create mode 100644 log_string_builders_and_string_compare.js

diff --git a/log_string_builders_and_string_compare.js b/log_string_builders_and_string_compare.js
new file mode 100644
index 0000000..18079db
--- /dev/null
+++ b/log_string_builders_and_string_compare.js
@@ -0,0 +1,23 @@
+Java.perform(function() {
+    // string compare
+    var str = Java.use('java.lang.String'), objectClass = 'java.lang.Object';
+    str.equals.overload(objectClass).implementation = function(obj) {
+        var response = str.equals.overload(objectClass).call(this, obj);
+        if (obj) {
+            if (obj.toString().length > 5) {
+                send(str.toString.call(this) + ' == ' + obj.toString() + ' ? ' + response);
+            }
+        }
+        return response;
+    }
+    // log AbstractStringBuilder.toString()
+    ['java.lang.StringBuilder', 'java.lang.StringBuffer'].forEach(function(clazz, i) {
+        console.log('[?] ' + i + ' = ' + clazz);
+        var func = 'toString';
+        Java.use(clazz)[func].implementation = function() {
+            var ret = this[func]();
+            send('[' + i + '] ' + ret);
+            return ret;
+        };
+    });    
+});