lemonldap-ng/doc/pages/documentation/current/authfacebook.html
2019-09-23 22:41:16 +02:00

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<div class="dokuwiki export container">
<h1 class="sectionedit1" id="facebook">Facebook</h1>
<div class="level1">
<div class="table sectionedit2"><table class="inline table table-bordered table-striped">
<thead>
<tr class="row0 roweven">
<th class="col0 centeralign"> Authentication </th><th class="col1 centeralign"> Users </th><th class="col2 centeralign"> Password </th>
</tr>
</thead>
<tr class="row1 rowodd">
<td class="col0 centeralign"></td><td class="col1 centeralign"></td><td class="col2"> </td>
</tr>
</table></div>
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<h2 class="sectionedit3" id="presentation">Presentation</h2>
<div class="level2">
<p>
<a href="http://facebook.com" class="urlextern" title="http://facebook.com" rel="nofollow">Facebook</a> is a famous social network service. Facebook uses <a href="http://en.wikipedia.org/wiki/OAuth2" class="urlextern" title="http://en.wikipedia.org/wiki/OAuth2" rel="nofollow">OAuth2</a> protocol to allow applications to reuse its own authentication process (it means, if your are connected to Facebook, other applications can trust Facebook and let you in).
</p>
<p>
You need <a href="https://metacpan.org/release/Net-Facebook-Oauth2" class="urlextern" title="https://metacpan.org/release/Net-Facebook-Oauth2" rel="nofollow">Net::Facebook::Oauth2</a> package.
</p>
<p>
You need to register a new application on Facebook to get an application ID and a secret. See <a href="https://developers.facebook.com/apps" class="urlextern" title="https://developers.facebook.com/apps" rel="nofollow">https://developers.facebook.com/apps</a> on how to do that.
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<h2 class="sectionedit4" id="configuration">Configuration</h2>
<div class="level2">
<p>
In Manager, go in <code>General Parameters</code> &gt; <code>Authentication modules</code> and choose Facebook for authentication module. You can also use Facebook as user database.
</p>
<p>
Then, go in <code>Facebook parameters</code>:
</p>
<ul>
<li class="level1"><div class="li"> <strong>Authentication level</strong>: authentication level for this module.</div>
</li>
<li class="level1"><div class="li"> <strong>Facebook application ID</strong>: the application ID you get</div>
</li>
<li class="level1"><div class="li"> <strong>Facebook application secret</strong>: the corresponding secret</div>
</li>
<li class="level1"><div class="li"> <strong>User field</strong>: Facebook field that will be used as default user identifier</div>
</li>
</ul>
<p>
If you use Facebook as user database, declare values in exported variables:
</p>
<ul>
<li class="level1"><div class="li"> use any key name you want. If you want to refuse access when a data is missing, just add a &quot;!&quot; before the key name</div>
</li>
<li class="level1"><div class="li"> in the value field, set the field name. You can show them using <a href="https://developers.facebook.com/tools/explorer" class="urlextern" title="https://developers.facebook.com/tools/explorer" rel="nofollow">Facebook Graph API explorer</a> and have a list of supported fields in the <a href="https://developers.facebook.com/docs/graph-api/reference/user/" class="urlextern" title="https://developers.facebook.com/docs/graph-api/reference/user/" rel="nofollow">Graph API User reference</a>. For example:</div>
<ul>
<li class="level2"><div class="li"> cn =&gt; name</div>
</li>
<li class="level2"><div class="li"> mail =&gt; email</div>
</li>
<li class="level2"><div class="li"> sn =&gt; last_name</div>
</li>
</ul>
</li>
</ul>
<div class="noteimportant">Do not query user field in exported variables, as it is already registered by the authentication module in <code>$_user</code>.
</div><div class="noteimportant">Browser implementations of formAction directive are inconsistent (e.g. Firefox doesn&#039;t block the redirects whereas Chrome does).
Administrators may have to modify formAction value with wildcard likes *.
<p>
In Manager, go in :
</p>
<p>
<code>General Parameters</code> &gt; <code>Advanced Parameters</code> &gt; <code>Security</code> &gt; <code>Content Security Policy</code> &gt; <code>Form destination</code>
</p>
</div><div class="notetip">You can use the same Facebook access token in your applications. It is stored in session datas under the name <code>$_facebookToken</code>
</div>
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