<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
  "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">


<html xmlns="http://www.w3.org/1999/xhtml" lang="es">
  <head>
    <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
    
    <title>django.views.decorators.csrf &#8212; documentación de Django - 1.10.7</title>
    
    <link rel="stylesheet" href="../../../../_static/default.css" type="text/css" />
    <link rel="stylesheet" href="../../../../_static/pygments.css" type="text/css" />
    
    <script type="text/javascript">
      var DOCUMENTATION_OPTIONS = {
        URL_ROOT:    '../../../../',
        VERSION:     '1.10.7',
        COLLAPSE_INDEX: false,
        FILE_SUFFIX: '.html',
        HAS_SOURCE:  true,
        SOURCELINK_SUFFIX: '.txt'
      };
    </script>
    <script type="text/javascript" src="../../../../_static/jquery.js"></script>
    <script type="text/javascript" src="../../../../_static/underscore.js"></script>
    <script type="text/javascript" src="../../../../_static/doctools.js"></script>
    <script type="text/javascript" src="../../../../_static/translations.js"></script>
    <link rel="index" title="Índice" href="../../../../genindex.html" />
    <link rel="search" title="Búsqueda" href="../../../../search.html" />



 
<script type="text/javascript" src="../../../../templatebuiltins.js"></script>
<script type="text/javascript">
(function($) {
    if (!django_template_builtins) {
       // templatebuiltins.js missing, do nothing.
       return;
    }
    $(document).ready(function() {
        // Hyperlink Django template tags and filters
        var base = "../../../../ref/templates/builtins.html";
        if (base == "#") {
            // Special case for builtins.html itself
            base = "";
        }
        // Tags are keywords, class '.k'
        $("div.highlight\\-html\\+django span.k").each(function(i, elem) {
             var tagname = $(elem).text();
             if ($.inArray(tagname, django_template_builtins.ttags) != -1) {
                 var fragment = tagname.replace(/_/, '-');
                 $(elem).html("<a href='" + base + "#" + fragment + "'>" + tagname + "</a>");
             }
        });
        // Filters are functions, class '.nf'
        $("div.highlight\\-html\\+django span.nf").each(function(i, elem) {
             var filtername = $(elem).text();
             if ($.inArray(filtername, django_template_builtins.tfilters) != -1) {
                 var fragment = filtername.replace(/_/, '-');
                 $(elem).html("<a href='" + base + "#" + fragment + "'>" + filtername + "</a>");
             }
        });
    });
})(jQuery);
</script>


  </head>
  <body role="document">

    <div class="document">
  <div id="custom-doc" class="yui-t6">
    <div id="hd">
      <h1><a href="../../../../index.html">documentación de Django - 1.10.7</a></h1>
      <div id="global-nav">
        <a title="Home page" href="../../../../index.html">Home</a>  |
        <a title="Table of contents" href="../../../../contents.html">Table of contents</a>  |
        <a title="Global index" href="../../../../genindex.html">Index</a>  |
        <a title="Module index" href="../../../../py-modindex.html">Modules</a>
      </div>
      <div class="nav">
    <a href="../../../index.html" title="Código de módulo" accesskey="U">up</a></div>
    </div>

    <div id="bd">
      <div id="yui-main">
        <div class="yui-b">
          <div class="yui-g" id="_modules-django-views-decorators-csrf">
            
  <h1>Código fuente para django.views.decorators.csrf</h1><div class="highlight"><pre>
<span></span><span class="kn">from</span> <span class="nn">functools</span> <span class="k">import</span> <span class="n">wraps</span>

<span class="kn">from</span> <span class="nn">django.middleware.csrf</span> <span class="k">import</span> <span class="n">CsrfViewMiddleware</span><span class="p">,</span> <span class="n">get_token</span>
<span class="kn">from</span> <span class="nn">django.utils.decorators</span> <span class="k">import</span> <span class="n">available_attrs</span><span class="p">,</span> <span class="n">decorator_from_middleware</span>

<span class="n">csrf_protect</span> <span class="o">=</span> <span class="n">decorator_from_middleware</span><span class="p">(</span><span class="n">CsrfViewMiddleware</span><span class="p">)</span>
<span class="n">csrf_protect</span><span class="o">.</span><span class="vm">__name__</span> <span class="o">=</span> <span class="s2">&quot;csrf_protect&quot;</span>
<span class="n">csrf_protect</span><span class="o">.</span><span class="vm">__doc__</span> <span class="o">=</span> <span class="s2">&quot;&quot;&quot;</span>
<span class="s2">This decorator adds CSRF protection in exactly the same way as</span>
<span class="s2">CsrfViewMiddleware, but it can be used on a per view basis.  Using both, or</span>
<span class="s2">using the decorator multiple times, is harmless and efficient.</span>
<span class="s2">&quot;&quot;&quot;</span>


<span class="k">class</span> <span class="nc">_EnsureCsrfToken</span><span class="p">(</span><span class="n">CsrfViewMiddleware</span><span class="p">):</span>
    <span class="c1"># We need this to behave just like the CsrfViewMiddleware, but not reject</span>
    <span class="c1"># requests or log warnings.</span>
    <span class="k">def</span> <span class="nf">_reject</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">request</span><span class="p">,</span> <span class="n">reason</span><span class="p">):</span>
        <span class="k">return</span> <span class="kc">None</span>


<span class="n">requires_csrf_token</span> <span class="o">=</span> <span class="n">decorator_from_middleware</span><span class="p">(</span><span class="n">_EnsureCsrfToken</span><span class="p">)</span>
<span class="n">requires_csrf_token</span><span class="o">.</span><span class="vm">__name__</span> <span class="o">=</span> <span class="s1">&#39;requires_csrf_token&#39;</span>
<span class="n">requires_csrf_token</span><span class="o">.</span><span class="vm">__doc__</span> <span class="o">=</span> <span class="s2">&quot;&quot;&quot;</span>
<span class="s2">Use this decorator on views that need a correct csrf_token available to</span>
<span class="s2">RequestContext, but without the CSRF protection that csrf_protect</span>
<span class="s2">enforces.</span>
<span class="s2">&quot;&quot;&quot;</span>


<span class="k">class</span> <span class="nc">_EnsureCsrfCookie</span><span class="p">(</span><span class="n">CsrfViewMiddleware</span><span class="p">):</span>
    <span class="k">def</span> <span class="nf">_reject</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">request</span><span class="p">,</span> <span class="n">reason</span><span class="p">):</span>
        <span class="k">return</span> <span class="kc">None</span>

    <span class="k">def</span> <span class="nf">process_view</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">request</span><span class="p">,</span> <span class="n">callback</span><span class="p">,</span> <span class="n">callback_args</span><span class="p">,</span> <span class="n">callback_kwargs</span><span class="p">):</span>
        <span class="n">retval</span> <span class="o">=</span> <span class="nb">super</span><span class="p">(</span><span class="n">_EnsureCsrfCookie</span><span class="p">,</span> <span class="bp">self</span><span class="p">)</span><span class="o">.</span><span class="n">process_view</span><span class="p">(</span><span class="n">request</span><span class="p">,</span> <span class="n">callback</span><span class="p">,</span> <span class="n">callback_args</span><span class="p">,</span> <span class="n">callback_kwargs</span><span class="p">)</span>
        <span class="c1"># Forces process_response to send the cookie</span>
        <span class="n">get_token</span><span class="p">(</span><span class="n">request</span><span class="p">)</span>
        <span class="k">return</span> <span class="n">retval</span>


<span class="n">ensure_csrf_cookie</span> <span class="o">=</span> <span class="n">decorator_from_middleware</span><span class="p">(</span><span class="n">_EnsureCsrfCookie</span><span class="p">)</span>
<span class="n">ensure_csrf_cookie</span><span class="o">.</span><span class="vm">__name__</span> <span class="o">=</span> <span class="s1">&#39;ensure_csrf_cookie&#39;</span>
<span class="n">ensure_csrf_cookie</span><span class="o">.</span><span class="vm">__doc__</span> <span class="o">=</span> <span class="s2">&quot;&quot;&quot;</span>
<span class="s2">Use this decorator to ensure that a view sets a CSRF cookie, whether or not it</span>
<span class="s2">uses the csrf_token template tag, or the CsrfViewMiddleware is used.</span>
<span class="s2">&quot;&quot;&quot;</span>


<div class="viewcode-block" id="csrf_exempt"><a class="viewcode-back" href="../../../../ref/csrf.html#django.views.decorators.csrf.csrf_exempt">[documentos]</a><span class="k">def</span> <span class="nf">csrf_exempt</span><span class="p">(</span><span class="n">view_func</span><span class="p">):</span>
    <span class="sd">&quot;&quot;&quot;</span>
<span class="sd">    Marks a view function as being exempt from the CSRF view protection.</span>
<span class="sd">    &quot;&quot;&quot;</span>
    <span class="c1"># We could just do view_func.csrf_exempt = True, but decorators</span>
    <span class="c1"># are nicer if they don&#39;t have side-effects, so we return a new</span>
    <span class="c1"># function.</span>
    <span class="k">def</span> <span class="nf">wrapped_view</span><span class="p">(</span><span class="o">*</span><span class="n">args</span><span class="p">,</span> <span class="o">**</span><span class="n">kwargs</span><span class="p">):</span>
        <span class="k">return</span> <span class="n">view_func</span><span class="p">(</span><span class="o">*</span><span class="n">args</span><span class="p">,</span> <span class="o">**</span><span class="n">kwargs</span><span class="p">)</span>
    <span class="n">wrapped_view</span><span class="o">.</span><span class="n">csrf_exempt</span> <span class="o">=</span> <span class="kc">True</span>
    <span class="k">return</span> <span class="n">wraps</span><span class="p">(</span><span class="n">view_func</span><span class="p">,</span> <span class="n">assigned</span><span class="o">=</span><span class="n">available_attrs</span><span class="p">(</span><span class="n">view_func</span><span class="p">))(</span><span class="n">wrapped_view</span><span class="p">)</span></div>
</pre></div>

          </div>
        </div>
      </div>
      
        
          <div class="yui-b" id="sidebar">
            
      <div class="sphinxsidebar" role="navigation" aria-label="main navigation">
        <div class="sphinxsidebarwrapper">
  <h3>Browse</h3>
  <ul>
    
    
  </ul>
  <h3>You are here:</h3>
  <ul>
      <li>
        <a href="../../../../index.html">documentación de Django - 1.10.7</a>
        
          <ul><li><a href="../../../index.html">Código de módulo</a>
        
          <ul><li><a href="../../../django.html">django</a>
        
        <ul><li>django.views.decorators.csrf</li></ul>
        </li></ul></li></ul>
      </li>
  </ul>

<div id="searchbox" style="display: none" role="search">
  <h3>Búsqueda rápida</h3>
    <form class="search" action="../../../../search.html" method="get">
      <div><input type="text" name="q" /></div>
      <div><input type="submit" value="Ir a" /></div>
      <input type="hidden" name="check_keywords" value="yes" />
      <input type="hidden" name="area" value="default" />
    </form>
</div>
<script type="text/javascript">$('#searchbox').show(0);</script>
        </div>
      </div>
              <h3>Last update:</h3>
              <p class="topless">abr. 04, 2017</p>
          </div>
        
      
    </div>

    <div id="ft">
      <div class="nav">
    <a href="../../../index.html" title="Código de módulo" accesskey="U">up</a></div>
    </div>
  </div>

      <div class="clearer"></div>
    </div>
  </body>
</html>