{
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   "cell_type": "code",
   "execution_count": 5,
   "metadata": {
    "collapsed": true,
    "nbsphinx": "hidden"
   },
   "outputs": [],
   "source": [
    "# Delete this cell to re-enable tracebacks\n",
    "import sys\n",
    "ipython = get_ipython()\n",
    "\n",
    "def hide_traceback(exc_tuple=None, filename=None, tb_offset=None,\n",
    "                   exception_only=False, running_compiled_code=False):\n",
    "    etype, value, tb = sys.exc_info()\n",
    "    return ipython._showtraceback(etype, value, ipython.InteractiveTB.get_exception_only(etype, value))\n",
    "\n",
    "ipython.showtraceback = hide_traceback"
   ]
  },
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "## Versioning"
   ]
  },
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "To create a new version of an existing object, specify the property(ies) you want to change and their new values:"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 6,
   "metadata": {},
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "{\n",
      "    \"type\": \"indicator\",\n",
      "    \"id\": \"indicator--ec05229c-9f9a-408c-aa91-6996e2e9b4db\",\n",
      "    \"created\": \"2016-01-01T08:00:00.000Z\",\n",
      "    \"modified\": \"2017-09-14T16:59:28.100Z\",\n",
      "    \"labels\": [\n",
      "        \"malicious-activity\"\n",
      "    ],\n",
      "    \"name\": \"File hash for Foobar malware\",\n",
      "    \"pattern\": \"[file:hashes.md5 = 'd41d8cd98f00b204e9800998ecf8427e']\",\n",
      "    \"valid_from\": \"2017-09-14T16:59:28.098521Z\"\n",
      "}\n"
     ]
    }
   ],
   "source": [
    "from stix2 import Indicator\n",
    "\n",
    "indicator = Indicator(created=\"2016-01-01T08:00:00.000Z\",\n",
    "                      name=\"File hash for suspicious file\",\n",
    "                      labels=[\"anomalous-activity\"],\n",
    "                      pattern=\"[file:hashes.md5 = 'd41d8cd98f00b204e9800998ecf8427e']\")\n",
    "\n",
    "indicator2 = indicator.new_version(name=\"File hash for Foobar malware\",\n",
    "                                   labels=[\"malicious-activity\"])\n",
    "print(indicator2)"
   ]
  },
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "The modified time will be updated to the current time unless you provide a specific value as a keyword argument. Note that you can’t change the type, id, or created properties."
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 3,
   "metadata": {
    "scrolled": true
   },
   "outputs": [
    {
     "ename": "UnmodifiablePropertyError",
     "evalue": "These properties cannot be changed when making a new version: id.",
     "output_type": "error",
     "traceback": [
      "\u001b[0;31mUnmodifiablePropertyError\u001b[0m\u001b[0;31m:\u001b[0m These properties cannot be changed when making a new version: id.\n"
     ]
    }
   ],
   "source": [
    "indicator.new_version(id=\"indicator--cc42e358-8b9b-493c-9646-6ecd73b41c21\")"
   ]
  },
  {
   "cell_type": "markdown",
   "metadata": {
    "collapsed": true
   },
   "source": [
    "To revoke an object:"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 9,
   "metadata": {},
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "{\n",
      "    \"type\": \"indicator\",\n",
      "    \"id\": \"indicator--ec05229c-9f9a-408c-aa91-6996e2e9b4db\",\n",
      "    \"created\": \"2016-01-01T08:00:00.000Z\",\n",
      "    \"modified\": \"2017-09-14T17:03:31.222Z\",\n",
      "    \"labels\": [\n",
      "        \"malicious-activity\"\n",
      "    ],\n",
      "    \"name\": \"File hash for Foobar malware\",\n",
      "    \"pattern\": \"[file:hashes.md5 = 'd41d8cd98f00b204e9800998ecf8427e']\",\n",
      "    \"valid_from\": \"2017-09-14T16:59:28.098521Z\",\n",
      "    \"revoked\": true\n",
      "}\n"
     ]
    }
   ],
   "source": [
    "indicator2 = indicator2.revoke()\n",
    "print(indicator2)"
   ]
  }
 ],
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