debianize-mobilizon/lib/service/metadata/instance.ex

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defmodule Mobilizon.Service.Metadata.Instance do
@moduledoc """
Generates metadata for every other page that isn't event/actor/comment
"""
alias Phoenix.HTML
alias Phoenix.HTML.Tag
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alias Mobilizon.Config
alias Mobilizon.Service.Formatter.HTML, as: HTMLFormatter
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alias Mobilizon.Web.Endpoint
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def build_tags do
description = process_description(Config.instance_description())
title = "#{Config.instance_name()} - Mobilizon"
instance_json_ld = """
<script type="application/ld+json">{
"@context": "http://schema.org",
"@type": "WebSite",
"name": "#{title}",
"url": "#{Endpoint.url()}",
"potentialAction": {
"@type": "SearchAction",
"target": "#{Endpoint.url()}/search/{search_term}",
"query-input": "required name=search_term"
}
}</script>
"""
[
Tag.content_tag(:title, title),
Tag.tag(:meta, name: "description", content: description),
Tag.tag(:meta, property: "og:title", content: title),
Tag.tag(:meta, property: "og:url", content: Endpoint.url()),
Tag.tag(:meta, property: "og:description", content: description),
Tag.tag(:meta, property: "og:type", content: "website"),
HTML.raw(instance_json_ld)
]
end
defp process_description(description) do
description
|> HTMLFormatter.strip_tags()
|> String.slice(0..200)
|> (&"#{&1}").()
end
end