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

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Elixir
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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.Metadata.Utils
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alias Mobilizon.Web.Endpoint
alias Mobilizon.Web.Router.Helpers, as: Routes
import Mobilizon.Web.Gettext
@doc """
Build the list of tags for the instance
"""
@spec build_tags() :: list(Phoenix.HTML.safe())
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def build_tags do
description = Utils.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?term={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)
] ++ maybe_add_instance_feeds(Config.get([:instance, :enable_instance_feeds]))
end
@spec maybe_add_instance_feeds(boolean()) :: list()
defp maybe_add_instance_feeds(true) do
[
Tag.tag(:link,
rel: "alternate",
type: "application/atom+xml",
title: gettext("%{name}'s feed", name: Config.instance_name()) |> HTML.raw(),
href: Routes.feed_url(Endpoint, :instance, :atom)
),
Tag.tag(:link,
rel: "alternate",
type: "text/calendar",
title: gettext("%{name}'s feed", name: Config.instance_name()) |> HTML.raw(),
href: Routes.feed_url(Endpoint, :instance, :ics)
)
]
end
defp maybe_add_instance_feeds(false), do: []
end