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{
"cells": [
{
"cell_type": "code",
"execution_count": 1,
"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": "code",
"execution_count": 1,
"metadata": {
"nbsphinx": "hidden"
},
"outputs": [],
"source": [
"# JSON output syntax highlighting\n",
"from __future__ import print_function\n",
"from pygments import highlight\n",
"from pygments.lexers import JsonLexer, TextLexer\n",
"from pygments.formatters import HtmlFormatter\n",
"from IPython.display import display, HTML\n",
"from IPython.core.interactiveshell import InteractiveShell\n",
"\n",
"InteractiveShell.ast_node_interactivity = \"all\"\n",
"\n",
"def json_print(inpt):\n",
" string = str(inpt)\n",
" formatter = HtmlFormatter()\n",
" if string[0] == '{':\n",
" lexer = JsonLexer()\n",
" else:\n",
" lexer = TextLexer()\n",
" return HTML('<style type=\"text/css\">{}</style>{}'.format(\n",
" formatter.get_style_defs('.highlight'),\n",
" highlight(string, lexer, formatter)))\n",
"\n",
"globals()['print'] = json_print"
]
},
{
"cell_type": "markdown",
"metadata": {},
"source": [
"## Technical Specification Support\n",
"\n",
"### How imports work\n",
"\n",
"Imports can be used in different ways depending on the use case and support levels.\n",
"\n",
"People who want to support the latest version of STIX 2.X without having to make changes, can implicitly use the latest version:"
]
},
{
"cell_type": "code",
"execution_count": null,
"metadata": {
"collapsed": true
},
"outputs": [],
"source": [
"import stix2\n",
"\n",
"stix2.Indicator()"
]
},
{
"cell_type": "markdown",
"metadata": {},
"source": [
"or,"
]
},
{
"cell_type": "code",
"execution_count": null,
"metadata": {
"collapsed": true
},
"outputs": [],
"source": [
"from stix2 import Indicator\n",
"\n",
"Indicator()"
]
},
{
"cell_type": "markdown",
"metadata": {},
"source": [
"People who want to use an explicit version:"
]
},
{
"cell_type": "code",
"execution_count": null,
"metadata": {
"collapsed": true
},
"outputs": [],
"source": [
"import stix2.v20\n",
"\n",
"stix2.v20.Indicator()"
]
},
{
"cell_type": "markdown",
"metadata": {},
"source": [
"or,"
]
},
{
"cell_type": "code",
"execution_count": null,
"metadata": {
"collapsed": true
},
"outputs": [],
"source": [
"from stix2.v20 import Indicator\n",
"\n",
"Indicator()"
]
},
{
"cell_type": "markdown",
"metadata": {},
"source": [
"or even,"
]
},
{
"cell_type": "code",
"execution_count": null,
"metadata": {
"collapsed": true
},
"outputs": [],
"source": [
"import stix2.v20 as stix2\n",
"\n",
"stix2.Indicator()"
]
},
{
"cell_type": "markdown",
"metadata": {},
"source": [
"The last option makes it easy to update to a new version in one place per file, once you've made the deliberate action to do this.\n",
"\n",
"People who want to use multiple versions in a single file:"
]
},
{
"cell_type": "code",
"execution_count": null,
"metadata": {
"collapsed": true
},
"outputs": [],
"source": [
"import stix2\n",
"\n",
"stix2.v20.Indicator()\n",
"stix2.v21.Indicator()"
]
},
{
"cell_type": "markdown",
"metadata": {},
"source": [
"or,"
]
},
{
"cell_type": "code",
"execution_count": null,
"metadata": {
"collapsed": true
},
"outputs": [],
"source": [
"from stix2 import v20, v21\n",
"\n",
"v20.Indicator()\n",
"v21.Indicator()"
]
},
{
"cell_type": "markdown",
"metadata": {},
"source": [
"or (less preferred):"
]
},
{
"cell_type": "code",
"execution_count": null,
"metadata": {
"collapsed": true
},
"outputs": [],
"source": [
"from stix2.v20 import Indicator as Indicator_v20\n",
"from stix2.v21 import Indicator as Indicator_v21\n",
"\n",
"Indicator_v20()\n",
"Indicator_v21()"
]
},
{
"cell_type": "markdown",
"metadata": {},
"source": [
"### How parsing works\n",
"If the ``version`` positional argument is not provided. The data will be parsed using the latest version of STIX 2.X supported by the `stix2` library.\n",
"\n",
"You can lock your [parse()](../api/stix2.core.rst#stix2.core.parse) method to a specific STIX version by:"
]
},
{
"cell_type": "code",
"execution_count": 2,
"metadata": {},
"outputs": [
{
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".highlight .il { color: #666666 } /* Literal.Number.Integer.Long */</style><div class=\"highlight\"><pre><span></span><span class=\"p\">{</span>\n",
" <span class=\"nt\">&quot;type&quot;</span><span class=\"p\">:</span> <span class=\"s2\">&quot;indicator&quot;</span><span class=\"p\">,</span>\n",
" <span class=\"nt\">&quot;id&quot;</span><span class=\"p\">:</span> <span class=\"s2\">&quot;indicator--dbcbd659-c927-4f9a-994f-0a2632274394&quot;</span><span class=\"p\">,</span>\n",
" <span class=\"nt\">&quot;created&quot;</span><span class=\"p\">:</span> <span class=\"s2\">&quot;2017-09-26T23:33:39.829Z&quot;</span><span class=\"p\">,</span>\n",
" <span class=\"nt\">&quot;modified&quot;</span><span class=\"p\">:</span> <span class=\"s2\">&quot;2017-09-26T23:33:39.829Z&quot;</span><span class=\"p\">,</span>\n",
" <span class=\"nt\">&quot;name&quot;</span><span class=\"p\">:</span> <span class=\"s2\">&quot;File hash for malware variant&quot;</span><span class=\"p\">,</span>\n",
" <span class=\"nt\">&quot;pattern&quot;</span><span class=\"p\">:</span> <span class=\"s2\">&quot;[file:hashes.md5 = &#39;d41d8cd98f00b204e9800998ecf8427e&#39;]&quot;</span><span class=\"p\">,</span>\n",
" <span class=\"nt\">&quot;valid_from&quot;</span><span class=\"p\">:</span> <span class=\"s2\">&quot;2017-09-26T23:33:39.829952Z&quot;</span><span class=\"p\">,</span>\n",
" <span class=\"nt\">&quot;labels&quot;</span><span class=\"p\">:</span> <span class=\"p\">[</span>\n",
" <span class=\"s2\">&quot;malicious-activity&quot;</span>\n",
" <span class=\"p\">]</span>\n",
"<span class=\"p\">}</span>\n",
"</pre></div>\n"
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"<IPython.core.display.HTML object>"
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"execution_count": 2,
"metadata": {},
"output_type": "execute_result"
}
],
"source": [
"from stix2 import parse\n",
"\n",
"indicator = parse(\"\"\"{\n",
" \"type\": \"indicator\",\n",
" \"id\": \"indicator--dbcbd659-c927-4f9a-994f-0a2632274394\",\n",
" \"created\": \"2017-09-26T23:33:39.829Z\",\n",
" \"modified\": \"2017-09-26T23:33:39.829Z\",\n",
" \"labels\": [\n",
" \"malicious-activity\"\n",
" ],\n",
" \"name\": \"File hash for malware variant\",\n",
" \"pattern\": \"[file:hashes.md5 = 'd41d8cd98f00b204e9800998ecf8427e']\",\n",
" \"valid_from\": \"2017-09-26T23:33:39.829952Z\"\n",
"}\"\"\", version=\"2.0\")\n",
"print(indicator)"
]
},
{
"cell_type": "markdown",
"metadata": {},
"source": [
"Keep in mind that if a 2.1 or higher object is parsed, the operation will fail."
]
},
{
"cell_type": "markdown",
"metadata": {},
"source": [
"### How custom content works\n",
"\n",
"[CustomObject](../api/stix2.v20.sdo.rst#stix2.v20.sdo.CustomObject), [CustomObservable](../api/stix2.v20.observables.rst#stix2.v20.observables.CustomObservable), [CustomMarking](../api/stix2.v20.common.rst#stix2.v20.common.CustomMarking) and [CustomExtension](../api/stix2.v20.observables.rst#stix2.v20.observables.CustomExtension) must be registered explicitly by STIX version. This is a design decision since properties or requirements may change as the STIX Technical Specification advances.\n",
"\n",
"You can perform this by:"
]
},
{
"cell_type": "code",
"execution_count": null,
"metadata": {
"collapsed": true
},
"outputs": [],
"source": [
"import stix2\n",
"\n",
"# Make my custom observable available in STIX 2.0\n",
"@stix2.v20.CustomObservable('x-new-object-type',\n",
" ((\"prop\", stix2.properties.BooleanProperty())))\n",
"class NewObject2(object):\n",
" pass\n",
"\n",
"\n",
"# Make my custom observable available in STIX 2.1\n",
"@stix2.v21.CustomObservable('x-new-object-type',\n",
" ((\"prop\", stix2.properties.BooleanProperty())))\n",
"class NewObject2(object):\n",
" pass"
]
}
],
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