bonfire-app/extension-activity_pub.html
2024-04-16 21:21:08 +00:00

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<h1>
<a href="https://github.com/bonfire-networks/activity_pub/blob/main/README.md#L1" title="View Source" class="icon-action" rel="help">
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<span>ActivityPub</span>
</h1>
<p>ActivityPub Library for elixir.</p><p><strong>WORK IN PROGRESS, TESTING FEDERATION WITH DIFFERENT IMPLEMENTATIONS IS UNDERWAY</strong></p><h2 id="installation" class="section-heading">
<a href="#installation" class="hover-link">
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<span class="text">Installation</span>
</h2>
<ol><li>Add this library to your dependencies in <code class="inline">mix.exs</code></li></ol><pre><code class="makeup elixir" translate="no"><span class="kd">defp</span><span class="w"> </span><span class="nf">deps</span><span class="w"> </span><span class="k" data-group-id="4906101351-1">do</span><span class="w">
</span><span class="p" data-group-id="4906101351-2">[</span><span class="n">...</span><span class="p" data-group-id="4906101351-2">]</span><span class="w">
</span><span class="p" data-group-id="4906101351-3">{</span><span class="ss">:activity_pub</span><span class="p">,</span><span class="w"> </span><span class="ss">git</span><span class="p">:</span><span class="w"> </span><span class="s">&quot;https://github.com/bonfire-networks/activity_pub.git&quot;</span><span class="p">,</span><span class="w"> </span><span class="ss">branch</span><span class="p">:</span><span class="w"> </span><span class="s">&quot;stable&quot;</span><span class="p" data-group-id="4906101351-3">}</span><span class="w"> </span><span class="c1"># branch can &quot;stable&quot;, or &quot;develop&quot; for the bleeding edge</span><span class="w">
</span><span class="k" data-group-id="4906101351-1">end</span></code></pre><ol start="2"><li>Create an adapter module. To start, one created at
<code class="inline">lib/my_app/adapter.ex</code> might look like</li></ol><pre><code class="makeup elixir" translate="no"><span class="kd">defmodule</span><span class="w"> </span><span class="nc">MyApp.Adapter</span><span class="w"> </span><span class="k" data-group-id="6681543654-1">do</span><span class="w">
</span><span class="na">@moduledoc</span><span class="w"> </span><span class="s">&quot;&quot;&quot;
Adapter functions delegated from the `ActivityPub` Library
&quot;&quot;&quot;</span><span class="w">
</span><span class="na">@behaviour</span><span class="w"> </span><span class="nc">ActivityPub.Federator.Adapter</span><span class="w">
</span><span class="k" data-group-id="6681543654-1">end</span></code></pre><p>Note that, due to the defined <code class="inline">@behavior</code>, Elixir will warn you that
the required functions</p><ul><li><code class="inline">base_url/0</code></li><li><code class="inline">get_actor_by_id/1</code></li><li><code class="inline">get_actor_by_username/1</code></li><li><code class="inline">get_follower_local_ids/1</code></li><li><code class="inline">get_following_local_ids/1</code></li><li><code class="inline">get_redirect_url/1</code></li><li><code class="inline">handle_activity/1</code></li><li><code class="inline">maybe_create_remote_actor/1</code></li><li><code class="inline">maybe_publish_object/2</code></li><li><code class="inline">update_local_actor/2</code></li><li><code class="inline">update_remote_actor/1</code></li></ul><p>have not yet been implemented though you will be able to start your
app. Defining these allows <a href="https://hexdocs.pm/activity_pub/0.1.0/ActivityPub.html"><code class="inline">ActivityPub</code></a> to handle ActivityPub HTTP
and database calls and operations. An example of an implemented
adaptor can be found
<a href="https://github.com/bonfire-networks/bonfire_federate_activitypub/tree/main/lib/adapter
"Link to file hosted on GitHub"">here</a>.</p><p>Then set it in config</p><pre><code class="makeup elixir" translate="no"><span class="n">config</span><span class="w"> </span><span class="ss">:activity_pub</span><span class="p">,</span><span class="w"> </span><span class="ss">:adapter</span><span class="p">,</span><span class="w"> </span><span class="nc">MyApp.Adapter</span></code></pre><ol start="3"><li>Set your application repo in config</li></ol><pre><code class="makeup elixir" translate="no"><span class="n">config</span><span class="w"> </span><span class="ss">:activity_pub</span><span class="p">,</span><span class="w"> </span><span class="ss">:repo</span><span class="p">,</span><span class="w"> </span><span class="nc">MyApp.Repo</span></code></pre><ol start="4"><li><p>Create a new ecto migration and call <code class="inline">ActivityPub.Migration.up/0</code> from it</p></li><li><p>Inject AP routes to your router by adding <code class="inline">use ActivityPub.Web.Router</code> to your app's router module</p></li><li><p>Copy the default AP config to your app's confix.exs</p></li></ol><pre><code class="makeup elixir" translate="no"><span class="n">config</span><span class="w"> </span><span class="ss">:activity_pub</span><span class="p">,</span><span class="w"> </span><span class="ss">:mrf_simple</span><span class="p">,</span><span class="w">
</span><span class="ss">media_removal</span><span class="p">:</span><span class="w"> </span><span class="p" data-group-id="5418599052-1">[</span><span class="p" data-group-id="5418599052-1">]</span><span class="p">,</span><span class="w">
</span><span class="ss">media_nsfw</span><span class="p">:</span><span class="w"> </span><span class="p" data-group-id="5418599052-2">[</span><span class="p" data-group-id="5418599052-2">]</span><span class="p">,</span><span class="w">
</span><span class="ss">report_removal</span><span class="p">:</span><span class="w"> </span><span class="p" data-group-id="5418599052-3">[</span><span class="p" data-group-id="5418599052-3">]</span><span class="p">,</span><span class="w">
</span><span class="ss">accept</span><span class="p">:</span><span class="w"> </span><span class="p" data-group-id="5418599052-4">[</span><span class="p" data-group-id="5418599052-4">]</span><span class="p">,</span><span class="w">
</span><span class="ss">avatar_removal</span><span class="p">:</span><span class="w"> </span><span class="p" data-group-id="5418599052-5">[</span><span class="p" data-group-id="5418599052-5">]</span><span class="p">,</span><span class="w">
</span><span class="ss">banner_removal</span><span class="p">:</span><span class="w"> </span><span class="p" data-group-id="5418599052-6">[</span><span class="p" data-group-id="5418599052-6">]</span><span class="w">
</span><span class="n">config</span><span class="w"> </span><span class="ss">:activity_pub</span><span class="p">,</span><span class="w"> </span><span class="ss">:instance</span><span class="p">,</span><span class="w">
</span><span class="ss">hostname</span><span class="p">:</span><span class="w"> </span><span class="s">&quot;example.com&quot;</span><span class="p">,</span><span class="w">
</span><span class="ss">federation_publisher_modules</span><span class="p">:</span><span class="w"> </span><span class="p" data-group-id="5418599052-7">[</span><span class="nc">ActivityPub.Federator.APPublisher</span><span class="p" data-group-id="5418599052-7">]</span><span class="p">,</span><span class="w">
</span><span class="ss">federation_reachability_timeout_days</span><span class="p">:</span><span class="w"> </span><span class="mi">7</span><span class="p">,</span><span class="w">
</span><span class="ss">federating</span><span class="p">:</span><span class="w"> </span><span class="no">true</span><span class="p">,</span><span class="w">
</span><span class="ss">rewrite_policy</span><span class="p">:</span><span class="w"> </span><span class="p" data-group-id="5418599052-8">[</span><span class="p" data-group-id="5418599052-8">]</span><span class="w">
</span><span class="n">config</span><span class="w"> </span><span class="ss">:activity_pub</span><span class="p">,</span><span class="w"> </span><span class="ss">:http</span><span class="p">,</span><span class="w">
</span><span class="ss">proxy_url</span><span class="p">:</span><span class="w"> </span><span class="no">nil</span><span class="p">,</span><span class="w">
</span><span class="ss">user_agent</span><span class="p">:</span><span class="w"> </span><span class="s">&quot;Your app name&quot;</span><span class="p">,</span><span class="w">
</span><span class="ss">send_user_agent</span><span class="p">:</span><span class="w"> </span><span class="no">true</span><span class="p">,</span><span class="w">
</span><span class="ss">adapter</span><span class="p">:</span><span class="w"> </span><span class="p" data-group-id="5418599052-9">[</span><span class="w">
</span><span class="ss">ssl_options</span><span class="p">:</span><span class="w"> </span><span class="p" data-group-id="5418599052-10">[</span><span class="w">
</span><span class="c1"># Workaround for remote server certificate chain issues</span><span class="w">
</span><span class="ss">partial_chain</span><span class="p">:</span><span class="w"> </span><span class="o">&amp;</span><span class="nc">:hackney_connect</span><span class="o">.</span><span class="n">partial_chain</span><span class="o">/</span><span class="mi">1</span><span class="p">,</span><span class="w">
</span><span class="c1"># We don&#39;t support TLS v1.3 yet</span><span class="w">
</span><span class="ss">versions</span><span class="p">:</span><span class="w"> </span><span class="p" data-group-id="5418599052-11">[</span><span class="ss">:tlsv1</span><span class="p">,</span><span class="w"> </span><span class="ss">:&quot;tlsv1.1&quot;</span><span class="p">,</span><span class="w"> </span><span class="ss">:&quot;tlsv1.2&quot;</span><span class="p" data-group-id="5418599052-11">]</span><span class="w">
</span><span class="p" data-group-id="5418599052-10">]</span><span class="w">
</span><span class="p" data-group-id="5418599052-9">]</span></code></pre><ol start="7"><li><p>Change the hostname value in the instance config block to your instance's hostname </p></li><li><p>If you don't already have Oban set up, follow the <a href="https://hexdocs.pm/oban/installation.html#content">Oban installation intructions</a> and add the AP queues:</p></li></ol><pre><code class="makeup elixir" translate="no"><span class="n">config</span><span class="w"> </span><span class="ss">:my_app</span><span class="p">,</span><span class="w"> </span><span class="nc">Oban</span><span class="p">,</span><span class="w"> </span><span class="ss">queues</span><span class="p">:</span><span class="w"> </span><span class="p" data-group-id="7694691737-1">[</span><span class="ss">federator_incoming</span><span class="p">:</span><span class="w"> </span><span class="mi">50</span><span class="p">,</span><span class="w"> </span><span class="ss">federator_outgoing</span><span class="p">:</span><span class="w"> </span><span class="mi">50</span><span class="p">,</span><span class="w"> </span><span class="ss">remote_fetcher</span><span class="p">:</span><span class="w"> </span><span class="mi">20</span><span class="p" data-group-id="7694691737-1">]</span></code></pre><p>Now you should be able to compile and run your app and move over to integration.</p>
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