atom feed

lib/core/posts.ex

@@ -43,8 +43,8 @@ defmodule Core.Posts do
     |> Core.Repo.all()
   end
 
-  def get_published_recent_posts(kind) do
-    Post.Query.recent_posts(kind, @recent_posts_count)
+  def get_published_recent_posts(kind, count \\ @recent_posts_count) do
+    Post.Query.recent_posts(kind, count)
     |> Post.Query.published()
     |> Core.Repo.all()
   end

lib/core/posts/post.ex

@@ -109,8 +109,9 @@ defmodule Core.Posts.Post do
       )
     end
 
-    def where_kind(query \\ base(), kind) do
-      where(query, [posts: p], p.kind == ^kind)
+    def where_kind(query \\ base(), kinds) do
+      kinds = List.wrap(kinds)
+      where(query, [posts: p], p.kind in ^kinds)
     end
 
     def blogs(query \\ base()) do

lib/web/components/layouts/root.html.heex

@@ -7,6 +7,12 @@
     <.live_title default="sloanelybutsurely.com">
       {assigns[:page_title]}
     </.live_title>
+    <link
+      rel="alternate"
+      type="application/atom+xml"
+      title="sloanelybutsurely.com"
+      href="/atom.xml"
+    />
     <link phx-track-static rel="stylesheet" href={~p"/assets/app.css"} />
     <script defer phx-track-static type="text/javascript" src={~p"/assets/app.js"}>
     </script>

lib/web/controllers/feed_controller.ex

@@ -0,0 +1,56 @@
+defmodule Web.FeedController do
+  use Web, :controller
+
+  @feed_posts_count 50
+
+  def feed(conn, _params) do
+    posts =
+      Core.Posts.get_published_recent_posts([:blog, :status], @feed_posts_count)
+
+    updated =
+      posts
+      |> Enum.map(& &1.updated_at)
+      |> Enum.max(NaiveDateTime)
+      |> DateTime.from_naive!("Etc/UTC")
+
+    feed =
+      conn
+      |> url(~p"/")
+      |> Atomex.Feed.new(updated, "sloanelybutsurely.com")
+      |> Atomex.Feed.author("Sloane", uri: url(conn, ~p"/"))
+      |> Atomex.Feed.link(url(conn, ~p"/atom.xml"), rel: "self")
+      |> Atomex.Feed.entries(Enum.map(posts, &entry/1))
+      |> Atomex.Feed.build()
+      |> Atomex.generate_document()
+
+    conn
+    |> put_resp_content_type("applicatin/atom+xml")
+    |> send_resp(200, feed)
+  end
+
+  defp entry(%Schema.Post{} = post) do
+    permalink = Web.Paths.public_post_url(post)
+
+    permalink
+    |> Atomex.Entry.new(DateTime.from_naive!(post.updated_at, "Etc/UTC"), entry_title(post))
+    |> Atomex.Entry.author("Sloane", uri: url(~p"/"))
+    |> Atomex.Entry.published(DateTime.from_naive!(post.published_at, "Etc/UTC"))
+    |> Atomex.Entry.link(permalink, rel: "alternate")
+    |> Atomex.Entry.content({:cdata, Web.Markdown.to_html(post.body)}, type: "html")
+    |> Atomex.Entry.build()
+  end
+
+  defp entry_title(%Schema.Post{kind: :blog, title: title}), do: title
+
+  @status_title_length 40
+
+  defp entry_title(%Schema.Post{kind: :status, body: body}) do
+    if String.length(body) <= @status_title_length do
+      body
+    else
+      (body
+       |> String.slice(0, @status_title_length - 1)
+       |> String.trim_trailing()) <> "…"
+    end
+  end
+end

lib/web/paths.ex

@@ -1,6 +1,18 @@
 defmodule Web.Paths do
   use Web, :html
 
+  # there's duplication in here because `url/1/2/3` requires a compile time ~p
+
+  def public_post_url(%Schema.Post{kind: :status} = status) do
+    url(Web.Endpoint, ~p"/status/#{status}")
+  end
+
+  def public_post_url(%Schema.Post{kind: :blog} = blog) do
+    if date = Core.Posts.publish_date(blog) do
+      url(Web.Endpoint, ~p"/blog/#{date.year}/#{date.month}/#{date.day}/#{blog.slug}")
+    end
+  end
+
   def public_post_path(%Schema.Post{kind: :status} = status), do: public_status_path(status)
   def public_post_path(%Schema.Post{kind: :blog} = blog), do: public_blog_path(blog)
 

lib/web/router.ex

@@ -68,4 +68,6 @@ defmodule Web.Router do
     # live_session :current_user, on_mount: [{Web.UserAuth, :mount_current_user}] do
     # end
   end
+
+  get "/atom.xml", Web.FeedController, :feed
 end

mix.exs

@@ -72,6 +72,7 @@ defmodule SlaonelyButSurely.MixProject do
       {:tesla, "~> 1.14"},
       {:mint, "~> 1.7"},
       {:joken, "~> 2.6"},
+      {:atomex, "~> 0.5.1"},
 
       # Added dev and/or test dependencies
       {:credo, "~> 1.7", only: [:dev, :test], runtime: false},

mix.lock

@@ -1,5 +1,6 @@
 %{
   "argon2_elixir": {:hex, :argon2_elixir, "3.2.1", "f47740bf9f2a39ffef79ba48eb25dea2ee37bcc7eadf91d49615591d1a6fce1a", [:make, :mix], [{:comeonin, "~> 5.3", [hex: :comeonin, repo: "hexpm", optional: false]}, {:elixir_make, "~> 0.6", [hex: :elixir_make, repo: "hexpm", optional: false]}], "hexpm", "a813b78217394530b5fcf4c8070feee43df03ffef938d044019169c766315690"},
+  "atomex": {:hex, :atomex, "0.5.1", "706a8241fd6d1719b27a77b6d1192d2f85e6ecc78e6eadab29207d8cb9bb7ae5", [:mix], [{:xml_builder, "~> 2.1", [hex: :xml_builder, repo: "hexpm", optional: false]}], "hexpm", "6248891b5fcab8503982e090eedeeadb757a6311c2ef2e2998b874f7d319ab3f"},
   "bandit": {:hex, :bandit, "1.6.7", "42f30e37a1c89a2a12943c5dca76f731a2313e8a2e21c1a95dc8241893e922d1", [:mix], [{:hpax, "~> 1.0", [hex: :hpax, repo: "hexpm", optional: false]}, {:plug, "~> 1.14", [hex: :plug, repo: "hexpm", optional: false]}, {:telemetry, "~> 0.4 or ~> 1.0", [hex: :telemetry, repo: "hexpm", optional: false]}, {:thousand_island, "~> 1.0", [hex: :thousand_island, repo: "hexpm", optional: false]}, {:websock, "~> 0.5", [hex: :websock, repo: "hexpm", optional: false]}], "hexpm", "551ba8ff5e4fc908cbeb8c9f0697775fb6813a96d9de5f7fe02e34e76fd7d184"},
   "boundary": {:hex, :boundary, "0.10.4", "5fec5d2736c12f9bfe1720c3a2bd8c48c3547c24d6002ebf8e087570afd5bd2f", [:mix], [], "hexpm", "8baf6f23987afdb1483033ed0bde75c9c703613c22ed58d5f23bf948f203247c"},
   "bunt": {:hex, :bunt, "1.0.0", "081c2c665f086849e6d57900292b3a161727ab40431219529f13c4ddcf3e7a44", [:mix], [], "hexpm", "dc5f86aa08a5f6fa6b8096f0735c4e76d54ae5c9fa2c143e5a1fc7c1cd9bb6b5"},
@@ -10,7 +11,6 @@
   "credo": {:hex, :credo, "1.7.11", "d3e805f7ddf6c9c854fd36f089649d7cf6ba74c42bc3795d587814e3c9847102", [:mix], [{:bunt, "~> 0.2.1 or ~> 1.0", [hex: :bunt, repo: "hexpm", optional: false]}, {:file_system, "~> 0.2 or ~> 1.0", [hex: :file_system, repo: "hexpm", optional: false]}, {:jason, "~> 1.0", [hex: :jason, repo: "hexpm", optional: false]}], "hexpm", "56826b4306843253a66e47ae45e98e7d284ee1f95d53d1612bb483f88a8cf219"},
   "db_connection": {:hex, :db_connection, "2.7.0", "b99faa9291bb09892c7da373bb82cba59aefa9b36300f6145c5f201c7adf48ec", [:mix], [{:telemetry, "~> 0.4 or ~> 1.0", [hex: :telemetry, repo: "hexpm", optional: false]}], "hexpm", "dcf08f31b2701f857dfc787fbad78223d61a32204f217f15e881dd93e4bdd3ff"},
   "decimal": {:hex, :decimal, "2.3.0", "3ad6255aa77b4a3c4f818171b12d237500e63525c2fd056699967a3e7ea20f62", [:mix], [], "hexpm", "a4d66355cb29cb47c3cf30e71329e58361cfcb37c34235ef3bf1d7bf3773aeac"},
-  "dns_cluster": {:hex, :dns_cluster, "0.1.3", "0bc20a2c88ed6cc494f2964075c359f8c2d00e1bf25518a6a6c7fd277c9b0c66", [:mix], [], "hexpm", "46cb7c4a1b3e52c7ad4cbe33ca5079fbde4840dedeafca2baf77996c2da1bc33"},
   "ecto": {:hex, :ecto, "3.12.5", "4a312960ce612e17337e7cefcf9be45b95a3be6b36b6f94dfb3d8c361d631866", [:mix], [{:decimal, "~> 2.0", [hex: :decimal, repo: "hexpm", optional: false]}, {:jason, "~> 1.0", [hex: :jason, repo: "hexpm", optional: true]}, {:telemetry, "~> 0.4 or ~> 1.0", [hex: :telemetry, repo: "hexpm", optional: false]}], "hexpm", "6eb18e80bef8bb57e17f5a7f068a1719fbda384d40fc37acb8eb8aeca493b6ea"},
   "ecto_sql": {:hex, :ecto_sql, "3.12.1", "c0d0d60e85d9ff4631f12bafa454bc392ce8b9ec83531a412c12a0d415a3a4d0", [:mix], [{:db_connection, "~> 2.4.1 or ~> 2.5", [hex: :db_connection, repo: "hexpm", optional: false]}, {:ecto, "~> 3.12", [hex: :ecto, repo: "hexpm", optional: false]}, {:myxql, "~> 0.7", [hex: :myxql, repo: "hexpm", optional: true]}, {:postgrex, "~> 0.19 or ~> 1.0", [hex: :postgrex, repo: "hexpm", optional: true]}, {:tds, "~> 2.1.1 or ~> 2.2", [hex: :tds, repo: "hexpm", optional: true]}, {:telemetry, "~> 0.4.0 or ~> 1.0", [hex: :telemetry, repo: "hexpm", optional: false]}], "hexpm", "aff5b958a899762c5f09028c847569f7dfb9cc9d63bdb8133bff8a5546de6bf5"},
   "elixir_make": {:hex, :elixir_make, "0.9.0", "6484b3cd8c0cee58f09f05ecaf1a140a8c97670671a6a0e7ab4dc326c3109726", [:mix], [], "hexpm", "db23d4fd8b757462ad02f8aa73431a426fe6671c80b200d9710caf3d1dd0ffdb"},
@@ -65,21 +65,19 @@
   "sourceror": {:hex, :sourceror, "1.9.0", "3bf5fe2d017aaabe3866d8a6da097dd7c331e0d2d54e59e21c2b066d47f1e08e", [:mix], [], "hexpm", "d20a9dd5efe162f0d75a307146faa2e17b823ea4f134f662358d70f0332fed82"},
   "spitfire": {:hex, :spitfire, "0.2.0", "0de1f519a23f65bde40d316adad53c07a9563f25cc68915d639d8a509a0aad8a", [:mix], [], "hexpm", "743daaee2d81a0d8095431729f478ce49b47ea8943c7d770de86704975cb7775"},
   "ssl_verify_fun": {:hex, :ssl_verify_fun, "1.1.7", "354c321cf377240c7b8716899e182ce4890c5938111a1296add3ec74cf1715df", [:make, :mix, :rebar3], [], "hexpm", "fe4c190e8f37401d30167c8c405eda19469f34577987c76dde613e838bbc67f8"},
-  "styler": {:hex, :styler, "1.4.0", "5944723d08afe4d38210b674d7e97dd1137a75968a85a633983cc308e86dc5f2", [:mix], [], "hexpm", "07de0e89c27490c8e469bb814d77ddaaa3283d7d8038501021d80a7705cf13e9"},
   "tailwind": {:hex, :tailwind, "0.2.4", "5706ec47182d4e7045901302bf3a333e80f3d1af65c442ba9a9eed152fb26c2e", [:mix], [{:castore, ">= 0.0.0", [hex: :castore, repo: "hexpm", optional: false]}], "hexpm", "c6e4a82b8727bab593700c998a4d98cf3d8025678bfde059aed71d0000c3e463"},
   "telemetry": {:hex, :telemetry, "1.3.0", "fedebbae410d715cf8e7062c96a1ef32ec22e764197f70cda73d82778d61e7a2", [:rebar3], [], "hexpm", "7015fc8919dbe63764f4b4b87a95b7c0996bd539e0d499be6ec9d7f3875b79e6"},
   "telemetry_metrics": {:hex, :telemetry_metrics, "1.1.0", "5bd5f3b5637e0abea0426b947e3ce5dd304f8b3bc6617039e2b5a008adc02f8f", [:mix], [{:telemetry, "~> 0.4 or ~> 1.0", [hex: :telemetry, repo: "hexpm", optional: false]}], "hexpm", "e7b79e8ddfde70adb6db8a6623d1778ec66401f366e9a8f5dd0955c56bc8ce67"},
-  "telemetry_poller": {:hex, :telemetry_poller, "1.1.0", "58fa7c216257291caaf8d05678c8d01bd45f4bdbc1286838a28c4bb62ef32999", [:rebar3], [{:telemetry, "~> 1.0", [hex: :telemetry, repo: "hexpm", optional: false]}], "hexpm", "9eb9d9cbfd81cbd7cdd24682f8711b6e2b691289a0de6826e58452f28c103c8f"},
   "tesla": {:hex, :tesla, "1.14.1", "71c5b031b4e089c0fbfb2b362e24b4478465773ae4ef569760a8c2899ad1e73c", [:mix], [{:castore, "~> 0.1 or ~> 1.0", [hex: :castore, repo: "hexpm", optional: true]}, {:exjsx, ">= 3.0.0", [hex: :exjsx, repo: "hexpm", optional: true]}, {:finch, "~> 0.13", [hex: :finch, repo: "hexpm", optional: true]}, {:fuse, "~> 2.4", [hex: :fuse, repo: "hexpm", optional: true]}, {:gun, ">= 1.0.0", [hex: :gun, repo: "hexpm", optional: true]}, {:hackney, "~> 1.21", [hex: :hackney, repo: "hexpm", optional: true]}, {:ibrowse, "4.4.2", [hex: :ibrowse, repo: "hexpm", optional: true]}, {:jason, ">= 1.0.0", [hex: :jason, repo: "hexpm", optional: true]}, {:mime, "~> 1.0 or ~> 2.0", [hex: :mime, repo: "hexpm", optional: false]}, {:mint, "~> 1.0", [hex: :mint, repo: "hexpm", optional: true]}, {:mox, "~> 1.0", [hex: :mox, repo: "hexpm", optional: true]}, {:msgpax, "~> 2.3", [hex: :msgpax, repo: "hexpm", optional: true]}, {:poison, ">= 1.0.0", [hex: :poison, repo: "hexpm", optional: true]}, {:telemetry, "~> 0.4 or ~> 1.0", [hex: :telemetry, repo: "hexpm", optional: true]}], "hexpm", "c1dde8140a49a3bef5bb622356e77ac5a24ad0c8091f12c3b7fc1077ce797155"},
   "text_diff": {:hex, :text_diff, "0.1.0", "1caf3175e11a53a9a139bc9339bd607c47b9e376b073d4571c031913317fecaa", [:mix], [], "hexpm", "d1ffaaecab338e49357b6daa82e435f877e0649041ace7755583a0ea3362dbd7"},
   "thousand_island": {:hex, :thousand_island, "1.3.10", "a9971ebab1dfb36e2710a86b37c3f54973fbc9470d892035334415521fb53328", [:mix], [{:telemetry, "~> 0.4 or ~> 1.0", [hex: :telemetry, repo: "hexpm", optional: false]}], "hexpm", "17ab1f1b13aadb1f4b4c8e5b59c06874d701119fed082884c9c6d38addad254f"},
   "timex": {:hex, :timex, "3.7.11", "bb95cb4eb1d06e27346325de506bcc6c30f9c6dea40d1ebe390b262fad1862d1", [:mix], [{:combine, "~> 0.10", [hex: :combine, repo: "hexpm", optional: false]}, {:gettext, "~> 0.20", [hex: :gettext, repo: "hexpm", optional: false]}, {:tzdata, "~> 1.1", [hex: :tzdata, repo: "hexpm", optional: false]}], "hexpm", "8b9024f7efbabaf9bd7aa04f65cf8dcd7c9818ca5737677c7b76acbc6a94d1aa"},
   "toml": {:hex, :toml, "0.7.0", "fbcd773caa937d0c7a02c301a1feea25612720ac3fa1ccb8bfd9d30d822911de", [:mix], [], "hexpm", "0690246a2478c1defd100b0c9b89b4ea280a22be9a7b313a8a058a2408a2fa70"},
-  "typed_struct": {:hex, :typed_struct, "0.3.0", "939789e3c1dca39d7170c87f729127469d1315dcf99fee8e152bb774b17e7ff7", [:mix], [], "hexpm", "c50bd5c3a61fe4e198a8504f939be3d3c85903b382bde4865579bc23111d1b6d"},
   "tzdata": {:hex, :tzdata, "1.1.2", "45e5f1fcf8729525ec27c65e163be5b3d247ab1702581a94674e008413eef50b", [:mix], [{:hackney, "~> 1.17", [hex: :hackney, repo: "hexpm", optional: false]}], "hexpm", "cec7b286e608371602318c414f344941d5eb0375e14cfdab605cca2fe66cba8b"},
   "ueberauth": {:hex, :ueberauth, "0.10.8", "ba78fbcbb27d811a6cd06ad851793aaf7d27c3b30c9e95349c2c362b344cd8f0", [:mix], [{:plug, "~> 1.5", [hex: :plug, repo: "hexpm", optional: false]}], "hexpm", "f2d3172e52821375bccb8460e5fa5cb91cfd60b19b636b6e57e9759b6f8c10c1"},
   "ueberauth_mastodon": {:hex, :ueberauth_mastodon, "0.3.0", "e0b80adc29d8734f74cac908d25e2113739112ea84b95f3c9f27ef3161128426", [:mix], [{:hackney, "~> 1.20", [hex: :hackney, repo: "hexpm", optional: true]}, {:mastodon_client, "~> 0.1", [hex: :mastodon_client, repo: "hexpm", optional: false]}, {:ueberauth, "~> 0.10.0", [hex: :ueberauth, repo: "hexpm", optional: false]}], "hexpm", "28a049497b3b708a232c8d6da1c7fb80c92ae4a6961f2c9274dfe9333a1aa7d0"},
   "unicode_util_compat": {:hex, :unicode_util_compat, "0.7.0", "bc84380c9ab48177092f43ac89e4dfa2c6d62b40b8bd132b1059ecc7232f9a78", [:rebar3], [], "hexpm", "25eee6d67df61960cf6a794239566599b09e17e668d3700247bc498638152521"},
   "websock": {:hex, :websock, "0.5.3", "2f69a6ebe810328555b6fe5c831a851f485e303a7c8ce6c5f675abeb20ebdadc", [:mix], [], "hexpm", "6105453d7fac22c712ad66fab1d45abdf049868f253cf719b625151460b8b453"},
   "websock_adapter": {:hex, :websock_adapter, "0.5.8", "3b97dc94e407e2d1fc666b2fb9acf6be81a1798a2602294aac000260a7c4a47d", [:mix], [{:bandit, ">= 0.6.0", [hex: :bandit, repo: "hexpm", optional: true]}, {:plug, "~> 1.14", [hex: :plug, repo: "hexpm", optional: false]}, {:plug_cowboy, "~> 2.6", [hex: :plug_cowboy, repo: "hexpm", optional: true]}, {:websock, "~> 0.5", [hex: :websock, repo: "hexpm", optional: false]}], "hexpm", "315b9a1865552212b5f35140ad194e67ce31af45bcee443d4ecb96b5fd3f3782"},
+  "xml_builder": {:hex, :xml_builder, "2.4.0", "b20d23077266c81f593360dc037ea398461dddb6638a329743da6c73afa56725", [:mix], [], "hexpm", "833e325bb997f032b5a1b740d2fd6feed3c18ca74627f9f5f30513a9ae1a232d"},
 }