From 6a42641b8d806f40f697303995fb12af39a93bd8 Mon Sep 17 00:00:00 2001
From: Ekaterina Vaartis <vaartis@cock.li>
Date: Sat, 10 Aug 2019 21:46:36 +0300
Subject: [PATCH 01/48] Add pack.toml loading

---
 lib/pleroma/emoji.ex | 41 ++++++++++++++++++++++++++++-------------
 mix.exs              |  1 +
 mix.lock             |  1 +
 3 files changed, 30 insertions(+), 13 deletions(-)

diff --git a/lib/pleroma/emoji.ex b/lib/pleroma/emoji.ex
index 66e20f0e4..ede734a53 100644
--- a/lib/pleroma/emoji.ex
+++ b/lib/pleroma/emoji.ex
@@ -143,23 +143,38 @@ defp load do
   defp load_pack(pack_dir, emoji_groups) do
     pack_name = Path.basename(pack_dir)
 
-    emoji_txt = Path.join(pack_dir, "emoji.txt")
+    pack_toml = Path.join(pack_dir, "pack.toml")
 
-    if File.exists?(emoji_txt) do
-      load_from_file(emoji_txt, emoji_groups)
-    else
-      extensions = Pleroma.Config.get([:emoji, :pack_extensions])
+    if File.exists?(pack_toml) do
+      toml = Toml.decode_file!(pack_toml)
 
-      Logger.info(
-        "No emoji.txt found for pack \"#{pack_name}\", assuming all #{Enum.join(extensions, ", ")} files are emoji"
-      )
-
-      make_shortcode_to_file_map(pack_dir, extensions)
-      |> Enum.map(fn {shortcode, rel_file} ->
+      toml["files"]
+      |> Enum.map(fn {name, rel_file} ->
         filename = Path.join("/emoji/#{pack_name}", rel_file)
-
-        {shortcode, filename, [to_string(match_extra(emoji_groups, filename))]}
+        {name, filename, pack_name}
       end)
+    else
+      # Load from emoji.txt / all files
+      emoji_txt = Path.join(pack_dir, "emoji.txt")
+
+      if File.exists?(emoji_txt) do
+        load_from_file(emoji_txt, emoji_groups)
+      else
+        extensions = Pleroma.Config.get([:emoji, :pack_extensions])
+
+        Logger.info(
+          "No emoji.txt found for pack \"#{pack_name}\", assuming all #{
+            Enum.join(extensions, ", ")
+          } files are emoji"
+        )
+
+        make_shortcode_to_file_map(pack_dir, extensions)
+        |> Enum.map(fn {shortcode, rel_file} ->
+          filename = Path.join("/emoji/#{pack_name}", rel_file)
+
+          {shortcode, filename, [to_string(match_extra(emoji_groups, filename))]}
+        end)
+      end
     end
   end
 
diff --git a/mix.exs b/mix.exs
index f2635da24..172f3a940 100644
--- a/mix.exs
+++ b/mix.exs
@@ -157,6 +157,7 @@ defp deps do
       {:ex_rated, "~> 1.3"},
       {:ex_const, "~> 0.2"},
       {:plug_static_index_html, "~> 1.0.0"},
+      {:toml, "~> 0.5"},
       {:excoveralls, "~> 0.11.1", only: :test},
       {:mox, "~> 0.5", only: :test}
     ] ++ oauth_deps()
diff --git a/mix.lock b/mix.lock
index 24b34c09c..39b9fa930 100644
--- a/mix.lock
+++ b/mix.lock
@@ -92,6 +92,7 @@
   "telemetry": {:hex, :telemetry, "0.4.0", "8339bee3fa8b91cb84d14c2935f8ecf399ccd87301ad6da6b71c09553834b2ab", [:rebar3], [], "hexpm"},
   "tesla": {:hex, :tesla, "1.3.0", "f35d72f029e608f9cdc6f6d6fcc7c66cf6d6512a70cfef9206b21b8bd0203a30", [:mix], [{:castore, "~> 0.1", [hex: :castore, repo: "hexpm", optional: true]}, {:exjsx, ">= 3.0.0", [hex: :exjsx, repo: "hexpm", optional: true]}, {:fuse, "~> 2.4", [hex: :fuse, repo: "hexpm", optional: true]}, {:gun, "~> 1.3", [hex: :gun, repo: "hexpm", optional: true]}, {:hackney, "~> 1.6", [hex: :hackney, repo: "hexpm", optional: true]}, {:ibrowse, "~> 4.4.0", [hex: :ibrowse, repo: "hexpm", optional: true]}, {:jason, ">= 1.0.0", [hex: :jason, repo: "hexpm", optional: true]}, {:mime, "~> 1.0", [hex: :mime, repo: "hexpm", optional: false]}, {:mint, "~> 0.4", [hex: :mint, repo: "hexpm", optional: true]}, {:poison, ">= 1.0.0", [hex: :poison, repo: "hexpm", optional: true]}, {:telemetry, "~> 0.3", [hex: :telemetry, repo: "hexpm", optional: true]}], "hexpm"},
   "timex": {:hex, :timex, "3.6.1", "efdf56d0e67a6b956cc57774353b0329c8ab7726766a11547e529357ffdc1d56", [:mix], [{:combine, "~> 0.10", [hex: :combine, repo: "hexpm", optional: false]}, {:gettext, "~> 0.10", [hex: :gettext, repo: "hexpm", optional: false]}, {:tzdata, "~> 0.1.8 or ~> 0.5 or ~> 1.0.0", [hex: :tzdata, repo: "hexpm", optional: false]}], "hexpm"},
+  "toml": {:hex, :toml, "0.5.2", "e471388a8726d1ce51a6b32f864b8228a1eb8edc907a0edf2bb50eab9321b526", [:mix], [], "hexpm"},
   "trailing_format_plug": {:hex, :trailing_format_plug, "0.0.7", "64b877f912cf7273bed03379936df39894149e35137ac9509117e59866e10e45", [:mix], [{:plug, "> 0.12.0", [hex: :plug, repo: "hexpm", optional: false]}], "hexpm"},
   "tzdata": {:hex, :tzdata, "0.5.21", "8cbf3607fcce69636c672d5be2bbb08687fe26639a62bdcc283d267277db7cf0", [:mix], [{:hackney, "~> 1.0", [hex: :hackney, repo: "hexpm", optional: false]}], "hexpm"},
   "ueberauth": {:hex, :ueberauth, "0.6.1", "9e90d3337dddf38b1ca2753aca9b1e53d8a52b890191cdc55240247c89230412", [:mix], [{:plug, "~> 1.5", [hex: :plug, repo: "hexpm", optional: false]}], "hexpm"},

From b791a0865641eb8210380e22e04a9fb680a79dcb Mon Sep 17 00:00:00 2001
From: Ekaterina Vaartis <vaartis@cock.li>
Date: Sun, 11 Aug 2019 00:39:21 +0300
Subject: [PATCH 02/48] Implement API actions on packs

That incldues listing them and downloading them from other instances
or from the remote url
---
 .../web/emoji_api/emoji_api_controller.ex     | 171 ++++++++++++++++++
 lib/pleroma/web/router.ex                     |  22 +++
 2 files changed, 193 insertions(+)
 create mode 100644 lib/pleroma/web/emoji_api/emoji_api_controller.ex

diff --git a/lib/pleroma/web/emoji_api/emoji_api_controller.ex b/lib/pleroma/web/emoji_api/emoji_api_controller.ex
new file mode 100644
index 000000000..49d671518
--- /dev/null
+++ b/lib/pleroma/web/emoji_api/emoji_api_controller.ex
@@ -0,0 +1,171 @@
+defmodule Pleroma.Web.EmojiAPI.EmojiAPIController do
+  use Pleroma.Web, :controller
+
+  def reload(conn, _params) do
+    Pleroma.Emoji.reload()
+
+    conn |> json("ok")
+  end
+
+  @emoji_dir_path Path.join(
+                    Pleroma.Config.get!([:instance, :static_dir]),
+                    "emoji"
+                  )
+
+  def list_packs(conn, _params) do
+    pack_infos =
+      case File.ls(@emoji_dir_path) do
+        {:error, _} ->
+          %{}
+
+        {:ok, results} ->
+          results
+          |> Enum.filter(fn file ->
+            dir_path = Path.join(@emoji_dir_path, file)
+            # Filter to only use the pack.toml packs
+            File.dir?(dir_path) and File.exists?(Path.join(dir_path, "pack.toml"))
+          end)
+          |> Enum.map(fn pack_name ->
+            pack_path = Path.join(@emoji_dir_path, pack_name)
+            pack_file = Path.join(pack_path, "pack.toml")
+
+            {pack_name, Toml.decode_file!(pack_file)}
+          end)
+          # Transform into a map of pack-name => pack-data
+          # Check if all the files are in place and can be sent
+          |> Enum.map(fn {name, pack} ->
+            pack_path = Path.join(@emoji_dir_path, name)
+
+            archive_for_sha = make_archive(name, pack, pack_path)
+            archive_sha = :crypto.hash(:sha256, archive_for_sha) |> Base.encode16()
+
+            {name,
+             pack
+             |> put_in(["pack", "can-download"], can_download?(pack, pack_path))
+             |> put_in(["pack", "download-sha256"], archive_sha)}
+          end)
+          |> Enum.into(%{})
+      end
+
+    conn |> json(pack_infos)
+  end
+
+  defp can_download?(pack, pack_path) do
+    # If the pack is set as shared, check if it can be downloaded
+    # That means that when asked, the pack can be packed and sent to the remote
+    # Otherwise, they'd have to download it from external-src
+    pack["pack"]["share-files"] and
+      Enum.all?(pack["files"], fn {_, path} ->
+        File.exists?(Path.join(pack_path, path))
+      end)
+  end
+
+  defp make_archive(name, pack, pack_dir) do
+    files =
+      ['pack.toml'] ++
+        (pack["files"] |> Enum.map(fn {_, path} -> to_charlist(path) end))
+
+    {:ok, {_, zip_result}} = :zip.zip('#{name}.zip', files, [:memory, cwd: to_charlist(pack_dir)])
+
+    zip_result
+  end
+
+  def download_shared(conn, %{"name" => name}) do
+    pack_dir = Path.join(@emoji_dir_path, name)
+    pack_toml = Path.join(pack_dir, "pack.toml")
+
+    if File.exists?(pack_toml) do
+      pack = Toml.decode_file!(pack_toml)
+
+      if can_download?(pack, pack_dir) do
+        zip_result = make_archive(name, pack, pack_dir)
+
+        conn
+        |> send_download({:binary, zip_result}, filename: "#{name}.zip")
+      else
+        {:error,
+         conn
+         |> put_status(:forbidden)
+         |> json("Pack #{name} cannot be downloaded from this instance, either pack sharing\
+           was disabled for this pack or some files are missing")}
+      end
+    else
+      {:error,
+       conn
+       |> put_status(:not_found)
+       |> json("Pack #{name} does not exist")}
+    end
+  end
+
+  def download_from(conn, %{"instance_address" => address, "pack_name" => name} = data) do
+    list_uri = "#{address}/api/pleroma/emoji/packs/list"
+
+    list = Tesla.get!(list_uri).body |> Jason.decode!()
+    full_pack = list[name]
+    pfiles = full_pack["files"]
+    pack = full_pack["pack"]
+
+    pack_info_res =
+      cond do
+        pack["share-files"] && pack["can-download"] ->
+          {:ok,
+           %{
+             sha: pack["download-sha256"],
+             uri: "#{address}/api/pleroma/emoji/packs/download_shared/#{name}"
+           }}
+
+        pack["fallback-src"] ->
+          {:ok,
+           %{
+             sha: pack["fallback-src-sha256"],
+             uri: pack["fallback-src"],
+             fallback: true
+           }}
+
+        true ->
+          {:error, "The pack was not set as shared and the is no fallback url to download from"}
+      end
+
+    case pack_info_res do
+      {:ok, %{sha: sha, uri: uri} = pinfo} ->
+        sha = Base.decode16!(sha)
+        emoji_archive = Tesla.get!(uri).body
+
+        got_sha = :crypto.hash(:sha256, emoji_archive)
+
+        if got_sha == sha do
+          local_name = data["as"] || name
+          pack_dir = Path.join(@emoji_dir_path, local_name)
+          File.mkdir_p!(pack_dir)
+
+          files =
+            ['pack.toml'] ++
+              (pfiles |> Enum.map(fn {_, path} -> to_charlist(path) end))
+
+          {:ok, _} = :zip.unzip(emoji_archive, cwd: to_charlist(pack_dir), file_list: files)
+
+          # Fallback URL might not contain a pack.toml file, if that happens - fail (for now)
+          # FIXME: there seems to be a lack of any kind of encoders besides JSON.
+          erres =
+            if pinfo[:fallback] do
+              toml_path = Path.join(pack_dir, "pack.toml")
+
+              unless File.exists?(toml_path) do
+                conn
+                |> put_status(:internal_server_error)
+                |> text("No pack.toml in falblack source")
+              end
+            end
+
+          if not is_nil(erres), do: erres, else: conn |> text("ok")
+        else
+          conn
+          |> put_status(:internal_server_error)
+          |> text("SHA256 for the pack doesn't match the one sent by the server")
+        end
+
+      {:error, e} ->
+        conn |> put_status(:internal_server_error) |> text(e)
+    end
+  end
+end
diff --git a/lib/pleroma/web/router.ex b/lib/pleroma/web/router.ex
index b9b85fd67..514446fb3 100644
--- a/lib/pleroma/web/router.ex
+++ b/lib/pleroma/web/router.ex
@@ -207,6 +207,28 @@ defmodule Pleroma.Web.Router do
     get("/moderation_log", AdminAPIController, :list_log)
   end
 
+  scope "/api/pleroma/emoji", Pleroma.Web.EmojiAPI do
+    scope [] do
+      pipe_through([:admin_api, :oauth_write])
+
+      post("/reload", EmojiAPIController, :reload)
+    end
+
+    scope "/packs" do
+      # Modifying packs
+      pipe_through([:admin_api, :oauth_write])
+
+      post("/download_from", EmojiAPIController, :download_from)
+    end
+
+    scope "/packs" do
+      # Pack info / downloading
+      get("/list", EmojiAPIController, :list_packs)
+      get("/download_shared/:name", EmojiAPIController, :download_shared)
+      get("/sha_of_shared/:name", EmojiAPIController, :sha_of_shared)
+    end
+  end
+
   scope "/", Pleroma.Web.TwitterAPI do
     pipe_through(:pleroma_html)
 

From 54b8e683bce13cf67f2674ea9f56b30604b28358 Mon Sep 17 00:00:00 2001
From: Ekaterina Vaartis <vaartis@cock.li>
Date: Sun, 11 Aug 2019 22:32:15 +0300
Subject: [PATCH 03/48] Swap TOML for YAML to get YAML generation for packs
 from fallbacks

If fallback url doesn't have a pack.yml file, one from the source will
be used
---
 lib/pleroma/emoji.ex                          |  8 ++---
 .../web/emoji_api/emoji_api_controller.ex     | 36 +++++++++----------
 lib/pleroma/web/router.ex                     |  1 -
 mix.exs                                       |  2 +-
 mix.lock                                      |  3 +-
 5 files changed, 23 insertions(+), 27 deletions(-)

diff --git a/lib/pleroma/emoji.ex b/lib/pleroma/emoji.ex
index ede734a53..2a9f5f804 100644
--- a/lib/pleroma/emoji.ex
+++ b/lib/pleroma/emoji.ex
@@ -143,12 +143,12 @@ defp load do
   defp load_pack(pack_dir, emoji_groups) do
     pack_name = Path.basename(pack_dir)
 
-    pack_toml = Path.join(pack_dir, "pack.toml")
+    pack_yaml = Path.join(pack_dir, "pack.yml")
 
-    if File.exists?(pack_toml) do
-      toml = Toml.decode_file!(pack_toml)
+    if File.exists?(pack_yaml) do
+      yaml = RelaxYaml.Decoder.read_from_file(pack_yaml)
 
-      toml["files"]
+      yaml["files"]
       |> Enum.map(fn {name, rel_file} ->
         filename = Path.join("/emoji/#{pack_name}", rel_file)
         {name, filename, pack_name}
diff --git a/lib/pleroma/web/emoji_api/emoji_api_controller.ex b/lib/pleroma/web/emoji_api/emoji_api_controller.ex
index 49d671518..7ef9b543d 100644
--- a/lib/pleroma/web/emoji_api/emoji_api_controller.ex
+++ b/lib/pleroma/web/emoji_api/emoji_api_controller.ex
@@ -22,14 +22,14 @@ def list_packs(conn, _params) do
           results
           |> Enum.filter(fn file ->
             dir_path = Path.join(@emoji_dir_path, file)
-            # Filter to only use the pack.toml packs
-            File.dir?(dir_path) and File.exists?(Path.join(dir_path, "pack.toml"))
+            # Filter to only use the pack.yml packs
+            File.dir?(dir_path) and File.exists?(Path.join(dir_path, "pack.yml"))
           end)
           |> Enum.map(fn pack_name ->
             pack_path = Path.join(@emoji_dir_path, pack_name)
-            pack_file = Path.join(pack_path, "pack.toml")
+            pack_file = Path.join(pack_path, "pack.yml")
 
-            {pack_name, Toml.decode_file!(pack_file)}
+            {pack_name, RelaxYaml.Decoder.read_from_file(pack_file)}
           end)
           # Transform into a map of pack-name => pack-data
           # Check if all the files are in place and can be sent
@@ -62,7 +62,7 @@ defp can_download?(pack, pack_path) do
 
   defp make_archive(name, pack, pack_dir) do
     files =
-      ['pack.toml'] ++
+      ['pack.yml'] ++
         (pack["files"] |> Enum.map(fn {_, path} -> to_charlist(path) end))
 
     {:ok, {_, zip_result}} = :zip.zip('#{name}.zip', files, [:memory, cwd: to_charlist(pack_dir)])
@@ -72,10 +72,10 @@ defp make_archive(name, pack, pack_dir) do
 
   def download_shared(conn, %{"name" => name}) do
     pack_dir = Path.join(@emoji_dir_path, name)
-    pack_toml = Path.join(pack_dir, "pack.toml")
+    pack_yaml = Path.join(pack_dir, "pack.yml")
 
-    if File.exists?(pack_toml) do
-      pack = Toml.decode_file!(pack_toml)
+    if File.exists?(pack_yaml) do
+      pack = RelaxYaml.Decoder.read_from_file(pack_yaml)
 
       if can_download?(pack, pack_dir) do
         zip_result = make_archive(name, pack, pack_dir)
@@ -139,25 +139,21 @@ def download_from(conn, %{"instance_address" => address, "pack_name" => name} =
           File.mkdir_p!(pack_dir)
 
           files =
-            ['pack.toml'] ++
+            ['pack.yml'] ++
               (pfiles |> Enum.map(fn {_, path} -> to_charlist(path) end))
 
           {:ok, _} = :zip.unzip(emoji_archive, cwd: to_charlist(pack_dir), file_list: files)
 
-          # Fallback URL might not contain a pack.toml file, if that happens - fail (for now)
-          # FIXME: there seems to be a lack of any kind of encoders besides JSON.
-          erres =
-            if pinfo[:fallback] do
-              toml_path = Path.join(pack_dir, "pack.toml")
+          # Fallback URL might not contain a pack.yml file. Put on we have if there's none
+          if pinfo[:fallback] do
+            yaml_path = Path.join(pack_dir, "pack.yml")
 
-              unless File.exists?(toml_path) do
-                conn
-                |> put_status(:internal_server_error)
-                |> text("No pack.toml in falblack source")
-              end
+            unless File.exists?(yaml_path) do
+              File.write!(yaml_path, RelaxYaml.Encoder.encode(full_pack, []))
             end
+          end
 
-          if not is_nil(erres), do: erres, else: conn |> text("ok")
+          conn |> text("ok")
         else
           conn
           |> put_status(:internal_server_error)
diff --git a/lib/pleroma/web/router.ex b/lib/pleroma/web/router.ex
index 514446fb3..1c781d750 100644
--- a/lib/pleroma/web/router.ex
+++ b/lib/pleroma/web/router.ex
@@ -225,7 +225,6 @@ defmodule Pleroma.Web.Router do
       # Pack info / downloading
       get("/list", EmojiAPIController, :list_packs)
       get("/download_shared/:name", EmojiAPIController, :download_shared)
-      get("/sha_of_shared/:name", EmojiAPIController, :sha_of_shared)
     end
   end
 
diff --git a/mix.exs b/mix.exs
index 172f3a940..e8356d564 100644
--- a/mix.exs
+++ b/mix.exs
@@ -157,7 +157,7 @@ defp deps do
       {:ex_rated, "~> 1.3"},
       {:ex_const, "~> 0.2"},
       {:plug_static_index_html, "~> 1.0.0"},
-      {:toml, "~> 0.5"},
+      {:relax_yaml, "~> 0.1"},
       {:excoveralls, "~> 0.11.1", only: :test},
       {:mox, "~> 0.5", only: :test}
     ] ++ oauth_deps()
diff --git a/mix.lock b/mix.lock
index 39b9fa930..8852b5f65 100644
--- a/mix.lock
+++ b/mix.lock
@@ -84,6 +84,7 @@
   "quantum": {:hex, :quantum, "2.3.4", "72a0e8855e2adc101459eac8454787cb74ab4169de6ca50f670e72142d4960e9", [:mix], [{:calendar, "~> 0.17", [hex: :calendar, repo: "hexpm", optional: true]}, {:crontab, "~> 1.1", [hex: :crontab, repo: "hexpm", optional: false]}, {:gen_stage, "~> 0.12", [hex: :gen_stage, repo: "hexpm", optional: false]}, {:swarm, "~> 3.3", [hex: :swarm, repo: "hexpm", optional: false]}, {:timex, "~> 3.1", [hex: :timex, repo: "hexpm", optional: true]}], "hexpm"},
   "ranch": {:hex, :ranch, "1.7.1", "6b1fab51b49196860b733a49c07604465a47bdb78aa10c1c16a3d199f7f8c881", [:rebar3], [], "hexpm"},
   "recon": {:git, "https://github.com/ferd/recon.git", "75d70c7c08926d2f24f1ee6de14ee50fe8a52763", [tag: "2.4.0"]},
+  "relax_yaml": {:hex, :relax_yaml, "0.1.4", "99e55ae80b3bd1135f4288e1ba77b816ad7de05bcb4618a1a9f983ce7c89ff32", [:mix], [{:yamerl, "~> 0.4.0", [hex: :yamerl, repo: "hexpm", optional: false]}], "hexpm"},
   "ssl_verify_fun": {:hex, :ssl_verify_fun, "1.1.4", "f0eafff810d2041e93f915ef59899c923f4568f4585904d010387ed74988e77b", [:make, :mix, :rebar3], [], "hexpm"},
   "swarm": {:hex, :swarm, "3.4.0", "64f8b30055d74640d2186c66354b33b999438692a91be275bb89cdc7e401f448", [:mix], [{:gen_state_machine, "~> 2.0", [hex: :gen_state_machine, repo: "hexpm", optional: false]}, {:libring, "~> 1.0", [hex: :libring, repo: "hexpm", optional: false]}], "hexpm"},
   "sweet_xml": {:hex, :sweet_xml, "0.6.6", "fc3e91ec5dd7c787b6195757fbcf0abc670cee1e4172687b45183032221b66b8", [:mix], [], "hexpm"},
@@ -92,7 +93,6 @@
   "telemetry": {:hex, :telemetry, "0.4.0", "8339bee3fa8b91cb84d14c2935f8ecf399ccd87301ad6da6b71c09553834b2ab", [:rebar3], [], "hexpm"},
   "tesla": {:hex, :tesla, "1.3.0", "f35d72f029e608f9cdc6f6d6fcc7c66cf6d6512a70cfef9206b21b8bd0203a30", [:mix], [{:castore, "~> 0.1", [hex: :castore, repo: "hexpm", optional: true]}, {:exjsx, ">= 3.0.0", [hex: :exjsx, repo: "hexpm", optional: true]}, {:fuse, "~> 2.4", [hex: :fuse, repo: "hexpm", optional: true]}, {:gun, "~> 1.3", [hex: :gun, repo: "hexpm", optional: true]}, {:hackney, "~> 1.6", [hex: :hackney, repo: "hexpm", optional: true]}, {:ibrowse, "~> 4.4.0", [hex: :ibrowse, repo: "hexpm", optional: true]}, {:jason, ">= 1.0.0", [hex: :jason, repo: "hexpm", optional: true]}, {:mime, "~> 1.0", [hex: :mime, repo: "hexpm", optional: false]}, {:mint, "~> 0.4", [hex: :mint, repo: "hexpm", optional: true]}, {:poison, ">= 1.0.0", [hex: :poison, repo: "hexpm", optional: true]}, {:telemetry, "~> 0.3", [hex: :telemetry, repo: "hexpm", optional: true]}], "hexpm"},
   "timex": {:hex, :timex, "3.6.1", "efdf56d0e67a6b956cc57774353b0329c8ab7726766a11547e529357ffdc1d56", [:mix], [{:combine, "~> 0.10", [hex: :combine, repo: "hexpm", optional: false]}, {:gettext, "~> 0.10", [hex: :gettext, repo: "hexpm", optional: false]}, {:tzdata, "~> 0.1.8 or ~> 0.5 or ~> 1.0.0", [hex: :tzdata, repo: "hexpm", optional: false]}], "hexpm"},
-  "toml": {:hex, :toml, "0.5.2", "e471388a8726d1ce51a6b32f864b8228a1eb8edc907a0edf2bb50eab9321b526", [:mix], [], "hexpm"},
   "trailing_format_plug": {:hex, :trailing_format_plug, "0.0.7", "64b877f912cf7273bed03379936df39894149e35137ac9509117e59866e10e45", [:mix], [{:plug, "> 0.12.0", [hex: :plug, repo: "hexpm", optional: false]}], "hexpm"},
   "tzdata": {:hex, :tzdata, "0.5.21", "8cbf3607fcce69636c672d5be2bbb08687fe26639a62bdcc283d267277db7cf0", [:mix], [{:hackney, "~> 1.0", [hex: :hackney, repo: "hexpm", optional: false]}], "hexpm"},
   "ueberauth": {:hex, :ueberauth, "0.6.1", "9e90d3337dddf38b1ca2753aca9b1e53d8a52b890191cdc55240247c89230412", [:mix], [{:plug, "~> 1.5", [hex: :plug, repo: "hexpm", optional: false]}], "hexpm"},
@@ -100,4 +100,5 @@
   "unsafe": {:hex, :unsafe, "1.0.1", "a27e1874f72ee49312e0a9ec2e0b27924214a05e3ddac90e91727bc76f8613d8", [:mix], [], "hexpm"},
   "web_push_encryption": {:hex, :web_push_encryption, "0.2.1", "d42cecf73420d9dc0053ba3299cc8c8d6ff2be2487d67ca2a57265868e4d9a98", [:mix], [{:httpoison, "~> 1.0", [hex: :httpoison, repo: "hexpm", optional: false]}, {:jose, "~> 1.8", [hex: :jose, repo: "hexpm", optional: false]}, {:poison, "~> 3.0", [hex: :poison, repo: "hexpm", optional: false]}], "hexpm"},
   "websocket_client": {:git, "https://github.com/jeremyong/websocket_client.git", "9a6f65d05ebf2725d62fb19262b21f1805a59fbf", []},
+  "yamerl": {:hex, :yamerl, "0.4.0", "ae215b1242810a9bc07716b88062f1bfe06f6bc7cf68372091f630baa536df79", [:rebar3], [], "hexpm"},
 }

From 7fb7dd9e0e0135af467477a66692990bdaecdbe9 Mon Sep 17 00:00:00 2001
From: Ekaterina Vaartis <vaartis@cock.li>
Date: Sun, 11 Aug 2019 23:24:23 +0300
Subject: [PATCH 04/48] Only find SHA256 for packs that are shared

---
 .../web/emoji_api/emoji_api_controller.ex      | 18 ++++++++++++------
 1 file changed, 12 insertions(+), 6 deletions(-)

diff --git a/lib/pleroma/web/emoji_api/emoji_api_controller.ex b/lib/pleroma/web/emoji_api/emoji_api_controller.ex
index 7ef9b543d..915059783 100644
--- a/lib/pleroma/web/emoji_api/emoji_api_controller.ex
+++ b/lib/pleroma/web/emoji_api/emoji_api_controller.ex
@@ -36,13 +36,19 @@ def list_packs(conn, _params) do
           |> Enum.map(fn {name, pack} ->
             pack_path = Path.join(@emoji_dir_path, name)
 
-            archive_for_sha = make_archive(name, pack, pack_path)
-            archive_sha = :crypto.hash(:sha256, archive_for_sha) |> Base.encode16()
+            if can_download?(pack, pack_path) do
+              archive_for_sha = make_archive(name, pack, pack_path)
+              archive_sha = :crypto.hash(:sha256, archive_for_sha) |> Base.encode16()
 
-            {name,
-             pack
-             |> put_in(["pack", "can-download"], can_download?(pack, pack_path))
-             |> put_in(["pack", "download-sha256"], archive_sha)}
+              {name,
+               pack
+               |> put_in(["pack", "can-download"], true)
+               |> put_in(["pack", "download-sha256"], archive_sha)}
+            else
+              {name,
+               pack
+               |> put_in(["pack", "can-download"], false)}
+            end
           end)
           |> Enum.into(%{})
       end

From 7e4c8b56eab0e92b98efbf27e373d68758de540f Mon Sep 17 00:00:00 2001
From: Ekaterina Vaartis <vaartis@cock.li>
Date: Mon, 12 Aug 2019 10:35:34 +0300
Subject: [PATCH 05/48] Add tests for emoji pack sharing

---
 config/test.exs                               |   3 +-
 .../instance_static/emoji/test_pack/blank.png | Bin 0 -> 95 bytes
 test/instance_static/emoji/test_pack/pack.yml |  13 +++
 .../emoji/test_pack_nonshared/pack.yml        |  13 +++
 test/web/emoji_api_controller_test.exs        |  98 ++++++++++++++++++
 5 files changed, 126 insertions(+), 1 deletion(-)
 create mode 100644 test/instance_static/emoji/test_pack/blank.png
 create mode 100644 test/instance_static/emoji/test_pack/pack.yml
 create mode 100644 test/instance_static/emoji/test_pack_nonshared/pack.yml
 create mode 100644 test/web/emoji_api_controller_test.exs

diff --git a/config/test.exs b/config/test.exs
index df512b5d7..da2778aa7 100644
--- a/config/test.exs
+++ b/config/test.exs
@@ -30,7 +30,8 @@
   notify_email: "noreply@example.com",
   skip_thread_containment: false,
   federating: false,
-  external_user_synchronization: false
+  external_user_synchronization: false,
+  static_dir: "test/instance_static/"
 
 config :pleroma, :activitypub, sign_object_fetches: false
 
diff --git a/test/instance_static/emoji/test_pack/blank.png b/test/instance_static/emoji/test_pack/blank.png
new file mode 100644
index 0000000000000000000000000000000000000000..8f50fa02340e7e09e562f86e00b6e4bd6ad1d565
GIT binary patch
literal 95
zcmeAS@N?(olHy`uVBq!ia0vp^4Is=2Bp6=1#-sr$rjj7PU<QV=$!9HqJPA)1$B+uf
q<ORkOtcw#wdYS?axZDnEFfed5Ffe}4nR*bYhQZU-&t;ucLK6U?=oVoB

literal 0
HcmV?d00001

diff --git a/test/instance_static/emoji/test_pack/pack.yml b/test/instance_static/emoji/test_pack/pack.yml
new file mode 100644
index 000000000..851b06d17
--- /dev/null
+++ b/test/instance_static/emoji/test_pack/pack.yml
@@ -0,0 +1,13 @@
+pack:
+  license: Test license
+  homepage: https://pleroma.social
+  description: Test description
+
+  fallblack-src: https://example.com
+  # SHA256 of the fallback-src
+  fallback-src-sha256: 65CDCCBCA9388A68023519F997367783BE69ED42864398CAC568E56F65CE0E75
+
+  share-files: true
+
+files:
+  blank: blank.png
diff --git a/test/instance_static/emoji/test_pack_nonshared/pack.yml b/test/instance_static/emoji/test_pack_nonshared/pack.yml
new file mode 100644
index 000000000..45c340415
--- /dev/null
+++ b/test/instance_static/emoji/test_pack_nonshared/pack.yml
@@ -0,0 +1,13 @@
+pack:
+  license: Test license
+  homepage: https://pleroma.social
+  description: Test description
+
+  fallblack-src: https://example.com
+  # SHA256 of the fallback-src
+  fallback-src-sha256: 65CDCCBCA9388A68023519F997367783BE69ED42864398CAC568E56F65CE0E75
+
+  share-files: false
+
+files:
+  blank: blank.png
diff --git a/test/web/emoji_api_controller_test.exs b/test/web/emoji_api_controller_test.exs
new file mode 100644
index 000000000..c037883ee
--- /dev/null
+++ b/test/web/emoji_api_controller_test.exs
@@ -0,0 +1,98 @@
+defmodule Pleroma.Web.EmojiAPI.EmojiAPIControllerTest do
+  use Pleroma.Web.ConnCase
+
+  import Tesla.Mock
+
+  import Pleroma.Factory
+
+  test "shared & non-shared pack information in list_packs is ok" do
+    conn = build_conn()
+    resp = conn |> get(emoji_api_path(conn, :list_packs)) |> json_response(200)
+
+    assert Map.has_key?(resp, "test_pack")
+
+    pack = resp["test_pack"]
+
+    assert Map.has_key?(pack["pack"], "download-sha256")
+    assert pack["pack"]["can-download"]
+
+    assert pack["files"] == %{"blank" => "blank.png"}
+
+    # Non-shared pack
+
+    assert Map.has_key?(resp, "test_pack_nonshared")
+
+    pack = resp["test_pack_nonshared"]
+
+    refute pack["pack"]["shared"]
+    refute pack["pack"]["can-download"]
+  end
+
+  test "downloading a shared pack from download_shared" do
+    conn = build_conn()
+
+    resp =
+      conn
+      |> get(emoji_api_path(conn, :download_shared, "test_pack"))
+      |> response(200)
+
+    {:ok, arch} = :zip.unzip(resp, [:memory])
+
+    assert Enum.find(arch, fn {n, _} -> n == 'pack.yml' end)
+    assert Enum.find(arch, fn {n, _} -> n == 'blank.png' end)
+  end
+
+  test "downloading a shared pack from another instance via download_from" do
+    on_exit(fn ->
+      File.rm_rf!("test/instance_static/emoji/test_pack2")
+    end)
+
+    mock(fn
+      %{
+        method: :get,
+        url: "https://example.com/api/pleroma/emoji/packs/list"
+      } ->
+        conn = build_conn()
+
+        conn
+        |> get(emoji_api_path(conn, :list_packs))
+        |> json_response(200)
+        |> json()
+
+      %{
+        method: :get,
+        url: "https://example.com/api/pleroma/emoji/packs/download_shared/test_pack"
+      } ->
+        conn = build_conn()
+
+        conn
+        |> get(emoji_api_path(conn, :download_shared, "test_pack"))
+        |> response(200)
+        |> text()
+    end)
+
+    admin = insert(:user, info: %{is_admin: true})
+
+    conn = build_conn()
+
+    assert conn
+           |> put_req_header("content-type", "application/json")
+           |> assign(:user, admin)
+           |> post(
+             emoji_api_path(
+               conn,
+               :download_from
+             ),
+             %{
+               instance_address: "https://example.com",
+               pack_name: "test_pack",
+               as: "test_pack2"
+             }
+             |> Jason.encode!()
+           )
+           |> text_response(200) == "ok"
+
+    assert File.exists?("test/instance_static/emoji/test_pack2/pack.yml")
+    assert File.exists?("test/instance_static/emoji/test_pack2/blank.png")
+  end
+end

From ee620ecbf11398277551ef603355a56a53690461 Mon Sep 17 00:00:00 2001
From: Ekaterina Vaartis <vaartis@cock.li>
Date: Mon, 12 Aug 2019 13:13:01 +0300
Subject: [PATCH 06/48] Add caching for emoji pack sharing

---
 config/config.exs                             |  3 +-
 docs/config.md                                |  2 +
 lib/pleroma/application.ex                    |  6 ++-
 .../web/emoji_api/emoji_api_controller.ex     | 42 ++++++++++++++++++-
 4 files changed, 50 insertions(+), 3 deletions(-)

diff --git a/config/config.exs b/config/config.exs
index c7e0cf09f..4c758d4a0 100644
--- a/config/config.exs
+++ b/config/config.exs
@@ -122,7 +122,8 @@
     # Put groups that have higher priority than defaults here. Example in `docs/config/custom_emoji.md`
     Custom: ["/emoji/*.png", "/emoji/**/*.png"]
   ],
-  default_manifest: "https://git.pleroma.social/pleroma/emoji-index/raw/master/index.json"
+  default_manifest: "https://git.pleroma.social/pleroma/emoji-index/raw/master/index.json",
+  shared_pack_cache_seconds_per_file: 60
 
 config :pleroma, :uri_schemes,
   valid_schemes: [
diff --git a/docs/config.md b/docs/config.md
index 3f37fa561..1179def56 100644
--- a/docs/config.md
+++ b/docs/config.md
@@ -707,6 +707,8 @@ Configure OAuth 2 provider capabilities:
 * `pack_extensions`: A list of file extensions for emojis, when no emoji.txt for a pack is present. Example `[".png", ".gif"]`
 * `groups`: Emojis are ordered in groups (tags). This is an array of key-value pairs where the key is the groupname and the value the location or array of locations. `*` can be used as a wildcard. Example `[Custom: ["/emoji/*.png", "/emoji/custom/*.png"]]`
 * `default_manifest`: Location of the JSON-manifest. This manifest contains information about the emoji-packs you can download. Currently only one manifest can be added (no arrays).
+* `shared_pack_cache_seconds_per_file`: When an emoji pack is shared, the archive is created and cached in
+  memory for this amount of seconds multiplied by the number of files.
 
 ## Database options
 
diff --git a/lib/pleroma/application.ex b/lib/pleroma/application.ex
index dabce771d..a339e2c48 100644
--- a/lib/pleroma/application.ex
+++ b/lib/pleroma/application.ex
@@ -102,10 +102,14 @@ defp cachex_children do
       build_cachex("rich_media", default_ttl: :timer.minutes(120), limit: 5000),
       build_cachex("scrubber", limit: 2500),
       build_cachex("idempotency", expiration: idempotency_expiration(), limit: 2500),
-      build_cachex("web_resp", limit: 2500)
+      build_cachex("web_resp", limit: 2500),
+      build_cachex("emoji_packs", expiration: emoji_packs_expiration(), limit: 10)
     ]
   end
 
+  defp emoji_packs_expiration,
+    do: expiration(default: :timer.seconds(5 * 60), interval: :timer.seconds(60))
+
   defp idempotency_expiration,
     do: expiration(default: :timer.seconds(6 * 60 * 60), interval: :timer.seconds(60))
 
diff --git a/lib/pleroma/web/emoji_api/emoji_api_controller.ex b/lib/pleroma/web/emoji_api/emoji_api_controller.ex
index 915059783..8219eaaa1 100644
--- a/lib/pleroma/web/emoji_api/emoji_api_controller.ex
+++ b/lib/pleroma/web/emoji_api/emoji_api_controller.ex
@@ -1,6 +1,8 @@
 defmodule Pleroma.Web.EmojiAPI.EmojiAPIController do
   use Pleroma.Web, :controller
 
+  require Logger
+
   def reload(conn, _params) do
     Pleroma.Emoji.reload()
 
@@ -12,6 +14,8 @@ def reload(conn, _params) do
                     "emoji"
                   )
 
+  @cache_seconds_per_file Pleroma.Config.get!([:emoji, :shared_pack_cache_seconds_per_file])
+
   def list_packs(conn, _params) do
     pack_infos =
       case File.ls(@emoji_dir_path) do
@@ -66,13 +70,49 @@ defp can_download?(pack, pack_path) do
       end)
   end
 
-  defp make_archive(name, pack, pack_dir) do
+  defp create_archive_and_cache(name, pack, pack_dir, md5) do
     files =
       ['pack.yml'] ++
         (pack["files"] |> Enum.map(fn {_, path} -> to_charlist(path) end))
 
     {:ok, {_, zip_result}} = :zip.zip('#{name}.zip', files, [:memory, cwd: to_charlist(pack_dir)])
 
+    cache_ms = :timer.seconds(@cache_seconds_per_file * Enum.count(files))
+
+    Cachex.put!(
+      :emoji_packs_cache,
+      name,
+      # if pack.yml MD5 changes, the cache is not valid anymore
+      %{pack_yml_md5: md5, pack_data: zip_result},
+      # Add a minute to cache time for every file in the pack
+      ttl: cache_ms
+    )
+
+    Logger.debug("Create an archive for the '#{name}' shared emoji pack, \
+keeping it in cache for #{div(cache_ms, 1000)}s")
+
+    zip_result
+  end
+
+  defp make_archive(name, pack, pack_dir) do
+    # Having a different pack.yml md5 invalidates cache
+    pack_yml_md5 = :crypto.hash(:md5, File.read!(Path.join(pack_dir, "pack.yml")))
+
+    maybe_cached_pack = Cachex.get!(:emoji_packs_cache, name)
+
+    zip_result =
+      if is_nil(maybe_cached_pack) do
+        create_archive_and_cache(name, pack, pack_dir, pack_yml_md5)
+      else
+        if maybe_cached_pack[:pack_yml_md5] == pack_yml_md5 do
+          Logger.debug("Using cache for the '#{name}' shared emoji pack")
+
+          maybe_cached_pack[:pack_data]
+        else
+          create_archive_and_cache(name, pack, pack_dir, pack_yml_md5)
+        end
+      end
+
     zip_result
   end
 

From 7a0c755d0a69157868e245b35b48ed07a7dfd3c7 Mon Sep 17 00:00:00 2001
From: Ekaterina Vaartis <vaartis@cock.li>
Date: Mon, 12 Aug 2019 16:43:28 +0300
Subject: [PATCH 07/48] Send ok for emoji reloading as text, not as json

---
 lib/pleroma/web/emoji_api/emoji_api_controller.ex | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lib/pleroma/web/emoji_api/emoji_api_controller.ex b/lib/pleroma/web/emoji_api/emoji_api_controller.ex
index 8219eaaa1..72daccc8c 100644
--- a/lib/pleroma/web/emoji_api/emoji_api_controller.ex
+++ b/lib/pleroma/web/emoji_api/emoji_api_controller.ex
@@ -6,7 +6,7 @@ defmodule Pleroma.Web.EmojiAPI.EmojiAPIController do
   def reload(conn, _params) do
     Pleroma.Emoji.reload()
 
-    conn |> json("ok")
+    conn |> text("ok")
   end
 
   @emoji_dir_path Path.join(

From 3a8669b48771ac4203b6abf2a372c6960d36345a Mon Sep 17 00:00:00 2001
From: Ekaterina Vaartis <vaartis@cock.li>
Date: Mon, 12 Aug 2019 17:35:25 +0300
Subject: [PATCH 08/48] Fix responses for emoji pack controlller

---
 lib/pleroma/web/emoji_api/emoji_api_controller.ex | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/lib/pleroma/web/emoji_api/emoji_api_controller.ex b/lib/pleroma/web/emoji_api/emoji_api_controller.ex
index 72daccc8c..f2b1e8a8d 100644
--- a/lib/pleroma/web/emoji_api/emoji_api_controller.ex
+++ b/lib/pleroma/web/emoji_api/emoji_api_controller.ex
@@ -88,7 +88,7 @@ defp create_archive_and_cache(name, pack, pack_dir, md5) do
       ttl: cache_ms
     )
 
-    Logger.debug("Create an archive for the '#{name}' shared emoji pack, \
+    Logger.debug("Create an archive for the '#{name}' emoji pack, \
 keeping it in cache for #{div(cache_ms, 1000)}s")
 
     zip_result
@@ -132,14 +132,14 @@ def download_shared(conn, %{"name" => name}) do
         {:error,
          conn
          |> put_status(:forbidden)
-         |> json("Pack #{name} cannot be downloaded from this instance, either pack sharing\
+         |> text("Pack #{name} cannot be downloaded from this instance, either pack sharing\
            was disabled for this pack or some files are missing")}
       end
     else
       {:error,
        conn
        |> put_status(:not_found)
-       |> json("Pack #{name} does not exist")}
+       |> text("Pack #{name} does not exist")}
     end
   end
 
@@ -169,7 +169,7 @@ def download_from(conn, %{"instance_address" => address, "pack_name" => name} =
            }}
 
         true ->
-          {:error, "The pack was not set as shared and the is no fallback url to download from"}
+          {:error, "The pack was not set as shared and there is no fallback src to download from"}
       end
 
     case pack_info_res do

From 2d4b8f3d20c4dbf60e52e95e77f2e77766974402 Mon Sep 17 00:00:00 2001
From: Ekaterina Vaartis <vaartis@cock.li>
Date: Mon, 12 Aug 2019 18:03:59 +0300
Subject: [PATCH 09/48] Add an endpoint for deleting emoji packs

---
 lib/pleroma/web/emoji_api/emoji_api_controller.ex | 12 ++++++++++++
 lib/pleroma/web/router.ex                         |  1 +
 test/web/emoji_api_controller_test.exs            |  9 ++++++++-
 3 files changed, 21 insertions(+), 1 deletion(-)

diff --git a/lib/pleroma/web/emoji_api/emoji_api_controller.ex b/lib/pleroma/web/emoji_api/emoji_api_controller.ex
index f2b1e8a8d..49d970277 100644
--- a/lib/pleroma/web/emoji_api/emoji_api_controller.ex
+++ b/lib/pleroma/web/emoji_api/emoji_api_controller.ex
@@ -210,4 +210,16 @@ def download_from(conn, %{"instance_address" => address, "pack_name" => name} =
         conn |> put_status(:internal_server_error) |> text(e)
     end
   end
+
+  def delete(conn, %{"name" => name}) do
+    pack_dir = Path.join(@emoji_dir_path, name)
+
+    case File.rm_rf(pack_dir) do
+      {:ok, _} ->
+        conn |> text("ok")
+
+      {:error, _} ->
+        conn |> put_status(:internal_server_error) |> text("Couldn't delete the pack #{name}")
+    end
+  end
 end
diff --git a/lib/pleroma/web/router.ex b/lib/pleroma/web/router.ex
index 1c781d750..4df0ca3c3 100644
--- a/lib/pleroma/web/router.ex
+++ b/lib/pleroma/web/router.ex
@@ -218,6 +218,7 @@ defmodule Pleroma.Web.Router do
       # Modifying packs
       pipe_through([:admin_api, :oauth_write])
 
+      delete("/delete/:name", EmojiAPIController, :delete)
       post("/download_from", EmojiAPIController, :download_from)
     end
 
diff --git a/test/web/emoji_api_controller_test.exs b/test/web/emoji_api_controller_test.exs
index c037883ee..13a34d38d 100644
--- a/test/web/emoji_api_controller_test.exs
+++ b/test/web/emoji_api_controller_test.exs
@@ -42,7 +42,7 @@ test "downloading a shared pack from download_shared" do
     assert Enum.find(arch, fn {n, _} -> n == 'blank.png' end)
   end
 
-  test "downloading a shared pack from another instance via download_from" do
+  test "downloading a shared pack from another instance via download_from, deleting it" do
     on_exit(fn ->
       File.rm_rf!("test/instance_static/emoji/test_pack2")
     end)
@@ -94,5 +94,12 @@ test "downloading a shared pack from another instance via download_from" do
 
     assert File.exists?("test/instance_static/emoji/test_pack2/pack.yml")
     assert File.exists?("test/instance_static/emoji/test_pack2/blank.png")
+
+    assert conn
+           |> assign(:user, admin)
+           |> delete(emoji_api_path(conn, :delete, "test_pack2"))
+           |> response(200) == "ok"
+
+    refute File.exists?("test/instance_static/emoji/test_pack2")
   end
 end

From b0ecd412f5c499773cdc462c50d6c8104a819550 Mon Sep 17 00:00:00 2001
From: Ekaterina Vaartis <vaartis@cock.li>
Date: Mon, 12 Aug 2019 18:28:05 +0300
Subject: [PATCH 10/48] Clean out old emojis on reload

---
 lib/pleroma/emoji.ex | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/lib/pleroma/emoji.ex b/lib/pleroma/emoji.ex
index 2a9f5f804..f56b26da2 100644
--- a/lib/pleroma/emoji.ex
+++ b/lib/pleroma/emoji.ex
@@ -122,6 +122,9 @@ defp load do
             fn pack -> load_pack(Path.join(emoji_dir_path, pack), emoji_groups) end
           )
 
+        # Clear out old emojis
+        :ets.delete_all_objects(@ets)
+
         true = :ets.insert(@ets, emojis)
     end
 

From 2a94eca096f67a908410ffdd82f5bace8a3df88c Mon Sep 17 00:00:00 2001
From: Ekaterina Vaartis <vaartis@cock.li>
Date: Thu, 15 Aug 2019 11:39:39 +0300
Subject: [PATCH 11/48] Change YAML to JSON

---
 lib/pleroma/emoji.ex                          |  8 ++--
 .../web/emoji_api/emoji_api_controller.ex     | 40 +++++++++----------
 mix.exs                                       |  1 -
 mix.lock                                      |  1 -
 .../instance_static/emoji/test_pack/pack.json | 16 ++++++++
 test/instance_static/emoji/test_pack/pack.yml | 13 ------
 .../emoji/test_pack_nonshared/pack.json       | 16 ++++++++
 .../emoji/test_pack_nonshared/pack.yml        | 13 ------
 test/web/emoji_api_controller_test.exs        |  4 +-
 9 files changed, 58 insertions(+), 54 deletions(-)
 create mode 100644 test/instance_static/emoji/test_pack/pack.json
 delete mode 100644 test/instance_static/emoji/test_pack/pack.yml
 create mode 100644 test/instance_static/emoji/test_pack_nonshared/pack.json
 delete mode 100644 test/instance_static/emoji/test_pack_nonshared/pack.yml

diff --git a/lib/pleroma/emoji.ex b/lib/pleroma/emoji.ex
index f56b26da2..170a7d098 100644
--- a/lib/pleroma/emoji.ex
+++ b/lib/pleroma/emoji.ex
@@ -146,12 +146,12 @@ defp load do
   defp load_pack(pack_dir, emoji_groups) do
     pack_name = Path.basename(pack_dir)
 
-    pack_yaml = Path.join(pack_dir, "pack.yml")
+    pack_file = Path.join(pack_dir, "pack.json")
 
-    if File.exists?(pack_yaml) do
-      yaml = RelaxYaml.Decoder.read_from_file(pack_yaml)
+    if File.exists?(pack_file) do
+      contents = Jason.decode!(File.read!(pack_file))
 
-      yaml["files"]
+      contents["files"]
       |> Enum.map(fn {name, rel_file} ->
         filename = Path.join("/emoji/#{pack_name}", rel_file)
         {name, filename, pack_name}
diff --git a/lib/pleroma/web/emoji_api/emoji_api_controller.ex b/lib/pleroma/web/emoji_api/emoji_api_controller.ex
index 49d970277..aedc70372 100644
--- a/lib/pleroma/web/emoji_api/emoji_api_controller.ex
+++ b/lib/pleroma/web/emoji_api/emoji_api_controller.ex
@@ -26,14 +26,14 @@ def list_packs(conn, _params) do
           results
           |> Enum.filter(fn file ->
             dir_path = Path.join(@emoji_dir_path, file)
-            # Filter to only use the pack.yml packs
-            File.dir?(dir_path) and File.exists?(Path.join(dir_path, "pack.yml"))
+            # Filter to only use the pack.json packs
+            File.dir?(dir_path) and File.exists?(Path.join(dir_path, "pack.json"))
           end)
           |> Enum.map(fn pack_name ->
             pack_path = Path.join(@emoji_dir_path, pack_name)
-            pack_file = Path.join(pack_path, "pack.yml")
+            pack_file = Path.join(pack_path, "pack.json")
 
-            {pack_name, RelaxYaml.Decoder.read_from_file(pack_file)}
+            {pack_name, Jason.decode!(File.read!(pack_file))}
           end)
           # Transform into a map of pack-name => pack-data
           # Check if all the files are in place and can be sent
@@ -72,7 +72,7 @@ defp can_download?(pack, pack_path) do
 
   defp create_archive_and_cache(name, pack, pack_dir, md5) do
     files =
-      ['pack.yml'] ++
+      ['pack.json'] ++
         (pack["files"] |> Enum.map(fn {_, path} -> to_charlist(path) end))
 
     {:ok, {_, zip_result}} = :zip.zip('#{name}.zip', files, [:memory, cwd: to_charlist(pack_dir)])
@@ -82,8 +82,8 @@ defp create_archive_and_cache(name, pack, pack_dir, md5) do
     Cachex.put!(
       :emoji_packs_cache,
       name,
-      # if pack.yml MD5 changes, the cache is not valid anymore
-      %{pack_yml_md5: md5, pack_data: zip_result},
+      # if pack.json MD5 changes, the cache is not valid anymore
+      %{pack_json_md5: md5, pack_data: zip_result},
       # Add a minute to cache time for every file in the pack
       ttl: cache_ms
     )
@@ -95,21 +95,21 @@ defp create_archive_and_cache(name, pack, pack_dir, md5) do
   end
 
   defp make_archive(name, pack, pack_dir) do
-    # Having a different pack.yml md5 invalidates cache
-    pack_yml_md5 = :crypto.hash(:md5, File.read!(Path.join(pack_dir, "pack.yml")))
+    # Having a different pack.json md5 invalidates cache
+    pack_file_md5 = :crypto.hash(:md5, File.read!(Path.join(pack_dir, "pack.json")))
 
     maybe_cached_pack = Cachex.get!(:emoji_packs_cache, name)
 
     zip_result =
       if is_nil(maybe_cached_pack) do
-        create_archive_and_cache(name, pack, pack_dir, pack_yml_md5)
+        create_archive_and_cache(name, pack, pack_dir, pack_file_md5)
       else
-        if maybe_cached_pack[:pack_yml_md5] == pack_yml_md5 do
+        if maybe_cached_pack[:pack_file_md5] == pack_file_md5 do
           Logger.debug("Using cache for the '#{name}' shared emoji pack")
 
           maybe_cached_pack[:pack_data]
         else
-          create_archive_and_cache(name, pack, pack_dir, pack_yml_md5)
+          create_archive_and_cache(name, pack, pack_dir, pack_file_md5)
         end
       end
 
@@ -118,10 +118,10 @@ defp make_archive(name, pack, pack_dir) do
 
   def download_shared(conn, %{"name" => name}) do
     pack_dir = Path.join(@emoji_dir_path, name)
-    pack_yaml = Path.join(pack_dir, "pack.yml")
+    pack_file = Path.join(pack_dir, "pack.json")
 
-    if File.exists?(pack_yaml) do
-      pack = RelaxYaml.Decoder.read_from_file(pack_yaml)
+    if File.exists?(pack_file) do
+      pack = Jason.decode!(File.read!(pack_file))
 
       if can_download?(pack, pack_dir) do
         zip_result = make_archive(name, pack, pack_dir)
@@ -185,17 +185,17 @@ def download_from(conn, %{"instance_address" => address, "pack_name" => name} =
           File.mkdir_p!(pack_dir)
 
           files =
-            ['pack.yml'] ++
+            ['pack.json'] ++
               (pfiles |> Enum.map(fn {_, path} -> to_charlist(path) end))
 
           {:ok, _} = :zip.unzip(emoji_archive, cwd: to_charlist(pack_dir), file_list: files)
 
-          # Fallback URL might not contain a pack.yml file. Put on we have if there's none
+          # Fallback URL might not contain a pack.json file. Put on we have if there's none
           if pinfo[:fallback] do
-            yaml_path = Path.join(pack_dir, "pack.yml")
+            pack_file_path = Path.join(pack_dir, "pack.json")
 
-            unless File.exists?(yaml_path) do
-              File.write!(yaml_path, RelaxYaml.Encoder.encode(full_pack, []))
+            unless File.exists?(pack_file_path) do
+              File.write!(pack_file_path, Jason.encode!(full_pack))
             end
           end
 
diff --git a/mix.exs b/mix.exs
index e8356d564..f2635da24 100644
--- a/mix.exs
+++ b/mix.exs
@@ -157,7 +157,6 @@ defp deps do
       {:ex_rated, "~> 1.3"},
       {:ex_const, "~> 0.2"},
       {:plug_static_index_html, "~> 1.0.0"},
-      {:relax_yaml, "~> 0.1"},
       {:excoveralls, "~> 0.11.1", only: :test},
       {:mox, "~> 0.5", only: :test}
     ] ++ oauth_deps()
diff --git a/mix.lock b/mix.lock
index 8852b5f65..d27041b96 100644
--- a/mix.lock
+++ b/mix.lock
@@ -84,7 +84,6 @@
   "quantum": {:hex, :quantum, "2.3.4", "72a0e8855e2adc101459eac8454787cb74ab4169de6ca50f670e72142d4960e9", [:mix], [{:calendar, "~> 0.17", [hex: :calendar, repo: "hexpm", optional: true]}, {:crontab, "~> 1.1", [hex: :crontab, repo: "hexpm", optional: false]}, {:gen_stage, "~> 0.12", [hex: :gen_stage, repo: "hexpm", optional: false]}, {:swarm, "~> 3.3", [hex: :swarm, repo: "hexpm", optional: false]}, {:timex, "~> 3.1", [hex: :timex, repo: "hexpm", optional: true]}], "hexpm"},
   "ranch": {:hex, :ranch, "1.7.1", "6b1fab51b49196860b733a49c07604465a47bdb78aa10c1c16a3d199f7f8c881", [:rebar3], [], "hexpm"},
   "recon": {:git, "https://github.com/ferd/recon.git", "75d70c7c08926d2f24f1ee6de14ee50fe8a52763", [tag: "2.4.0"]},
-  "relax_yaml": {:hex, :relax_yaml, "0.1.4", "99e55ae80b3bd1135f4288e1ba77b816ad7de05bcb4618a1a9f983ce7c89ff32", [:mix], [{:yamerl, "~> 0.4.0", [hex: :yamerl, repo: "hexpm", optional: false]}], "hexpm"},
   "ssl_verify_fun": {:hex, :ssl_verify_fun, "1.1.4", "f0eafff810d2041e93f915ef59899c923f4568f4585904d010387ed74988e77b", [:make, :mix, :rebar3], [], "hexpm"},
   "swarm": {:hex, :swarm, "3.4.0", "64f8b30055d74640d2186c66354b33b999438692a91be275bb89cdc7e401f448", [:mix], [{:gen_state_machine, "~> 2.0", [hex: :gen_state_machine, repo: "hexpm", optional: false]}, {:libring, "~> 1.0", [hex: :libring, repo: "hexpm", optional: false]}], "hexpm"},
   "sweet_xml": {:hex, :sweet_xml, "0.6.6", "fc3e91ec5dd7c787b6195757fbcf0abc670cee1e4172687b45183032221b66b8", [:mix], [], "hexpm"},
diff --git a/test/instance_static/emoji/test_pack/pack.json b/test/instance_static/emoji/test_pack/pack.json
new file mode 100644
index 000000000..1b260f0f7
--- /dev/null
+++ b/test/instance_static/emoji/test_pack/pack.json
@@ -0,0 +1,16 @@
+{
+    "pack": {
+        "license": "Test license",
+        "homepage": "https://pleroma.social",
+        "description": "Test description",
+
+        "fallblack-src": "https://example.com",
+        "fallback-src-sha256": "65CDCCBCA9388A68023519F997367783BE69ED42864398CAC568E56F65CE0E75",
+
+        "share-files": true
+    },
+
+    "files": {
+        "blank": "blank.png"
+    }
+}
diff --git a/test/instance_static/emoji/test_pack/pack.yml b/test/instance_static/emoji/test_pack/pack.yml
deleted file mode 100644
index 851b06d17..000000000
--- a/test/instance_static/emoji/test_pack/pack.yml
+++ /dev/null
@@ -1,13 +0,0 @@
-pack:
-  license: Test license
-  homepage: https://pleroma.social
-  description: Test description
-
-  fallblack-src: https://example.com
-  # SHA256 of the fallback-src
-  fallback-src-sha256: 65CDCCBCA9388A68023519F997367783BE69ED42864398CAC568E56F65CE0E75
-
-  share-files: true
-
-files:
-  blank: blank.png
diff --git a/test/instance_static/emoji/test_pack_nonshared/pack.json b/test/instance_static/emoji/test_pack_nonshared/pack.json
new file mode 100644
index 000000000..b49b1efe7
--- /dev/null
+++ b/test/instance_static/emoji/test_pack_nonshared/pack.json
@@ -0,0 +1,16 @@
+{
+    "pack": {
+        "license": "Test license",
+        "homepage": "https://pleroma.social",
+        "description": "Test description",
+
+        "fallblack-src": "https://example.com",
+        "fallback-src-sha256": "65CDCCBCA9388A68023519F997367783BE69ED42864398CAC568E56F65CE0E75",
+
+        "share-files": false
+    },
+
+    "files": {
+        "blank": "blank.png"
+    }
+}
diff --git a/test/instance_static/emoji/test_pack_nonshared/pack.yml b/test/instance_static/emoji/test_pack_nonshared/pack.yml
deleted file mode 100644
index 45c340415..000000000
--- a/test/instance_static/emoji/test_pack_nonshared/pack.yml
+++ /dev/null
@@ -1,13 +0,0 @@
-pack:
-  license: Test license
-  homepage: https://pleroma.social
-  description: Test description
-
-  fallblack-src: https://example.com
-  # SHA256 of the fallback-src
-  fallback-src-sha256: 65CDCCBCA9388A68023519F997367783BE69ED42864398CAC568E56F65CE0E75
-
-  share-files: false
-
-files:
-  blank: blank.png
diff --git a/test/web/emoji_api_controller_test.exs b/test/web/emoji_api_controller_test.exs
index 13a34d38d..bf56c1516 100644
--- a/test/web/emoji_api_controller_test.exs
+++ b/test/web/emoji_api_controller_test.exs
@@ -38,7 +38,7 @@ test "downloading a shared pack from download_shared" do
 
     {:ok, arch} = :zip.unzip(resp, [:memory])
 
-    assert Enum.find(arch, fn {n, _} -> n == 'pack.yml' end)
+    assert Enum.find(arch, fn {n, _} -> n == 'pack.json' end)
     assert Enum.find(arch, fn {n, _} -> n == 'blank.png' end)
   end
 
@@ -92,7 +92,7 @@ test "downloading a shared pack from another instance via download_from, deletin
            )
            |> text_response(200) == "ok"
 
-    assert File.exists?("test/instance_static/emoji/test_pack2/pack.yml")
+    assert File.exists?("test/instance_static/emoji/test_pack2/pack.json")
     assert File.exists?("test/instance_static/emoji/test_pack2/blank.png")
 
     assert conn

From b78973d27f0c9225104914c79cf93bf3589fe7cc Mon Sep 17 00:00:00 2001
From: Ekaterina Vaartis <vaartis@cock.li>
Date: Thu, 15 Aug 2019 11:46:03 +0300
Subject: [PATCH 12/48] fallback can't have pack.json, reflect that in code

having pacj.json and sha256 in a fallback pack would cause a circular dependency of itself
---
 lib/pleroma/web/emoji_api/emoji_api_controller.ex | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

diff --git a/lib/pleroma/web/emoji_api/emoji_api_controller.ex b/lib/pleroma/web/emoji_api/emoji_api_controller.ex
index aedc70372..3b9eab8b8 100644
--- a/lib/pleroma/web/emoji_api/emoji_api_controller.ex
+++ b/lib/pleroma/web/emoji_api/emoji_api_controller.ex
@@ -184,19 +184,19 @@ def download_from(conn, %{"instance_address" => address, "pack_name" => name} =
           pack_dir = Path.join(@emoji_dir_path, local_name)
           File.mkdir_p!(pack_dir)
 
+          # Fallback cannot contain a pack.json file
           files =
-            ['pack.json'] ++
+            unless(pinfo[:fallback], do: ['pack.json'], else: []) ++
               (pfiles |> Enum.map(fn {_, path} -> to_charlist(path) end))
 
           {:ok, _} = :zip.unzip(emoji_archive, cwd: to_charlist(pack_dir), file_list: files)
 
-          # Fallback URL might not contain a pack.json file. Put on we have if there's none
+          # Fallback can't contain a pack.json file, since that would cause the fallback-src-sha256
+          # in it to depend on itself
           if pinfo[:fallback] do
             pack_file_path = Path.join(pack_dir, "pack.json")
 
-            unless File.exists?(pack_file_path) do
-              File.write!(pack_file_path, Jason.encode!(full_pack))
-            end
+            File.write!(pack_file_path, Jason.encode!(full_pack))
           end
 
           conn |> text("ok")

From adf31d596e77ef71e2ffe80d9dc41988f6c1cfb5 Mon Sep 17 00:00:00 2001
From: Ekaterina Vaartis <vaartis@cock.li>
Date: Thu, 15 Aug 2019 12:07:51 +0300
Subject: [PATCH 13/48] Add tests for downloading from fallback url

---
 .../emoji/test_pack_nonshared/nonshared.zip   | Bin 0 -> 256 bytes
 .../emoji/test_pack_nonshared/pack.json       |   4 +-
 test/web/emoji_api_controller_test.exs        |  40 +++++++++++++++++-
 3 files changed, 41 insertions(+), 3 deletions(-)
 create mode 100644 test/instance_static/emoji/test_pack_nonshared/nonshared.zip

diff --git a/test/instance_static/emoji/test_pack_nonshared/nonshared.zip b/test/instance_static/emoji/test_pack_nonshared/nonshared.zip
new file mode 100644
index 0000000000000000000000000000000000000000..148446c642ea24b494bc3e25ccd772faaf2f2a13
GIT binary patch
literal 256
zcmWIWW@Zs#U|`^2I2p(9A0OT*8Uf_R12HFq3`0^*VqUghL0)=j2qy#cF4@r7Q$So=
z!Og(P@`9Ox0ZhE+`B41)>7++V2?-CrektH&y2Pt+hC@XnZuhYzjGD_PDeO;RYuj`(
zUAMu8(_j4f1g>LGSdR&<=@xdWn#IJs;|^bzfkA<ZfkEB*nN<QyE?>TSK6P%elQ2Vo
rHzSiAGcLzT0G$W{OBz8ml2chBPDOKOfHx}}NFgH-`UC0NAPxfnZrnv?

literal 0
HcmV?d00001

diff --git a/test/instance_static/emoji/test_pack_nonshared/pack.json b/test/instance_static/emoji/test_pack_nonshared/pack.json
index b49b1efe7..b96781f81 100644
--- a/test/instance_static/emoji/test_pack_nonshared/pack.json
+++ b/test/instance_static/emoji/test_pack_nonshared/pack.json
@@ -4,8 +4,8 @@
         "homepage": "https://pleroma.social",
         "description": "Test description",
 
-        "fallblack-src": "https://example.com",
-        "fallback-src-sha256": "65CDCCBCA9388A68023519F997367783BE69ED42864398CAC568E56F65CE0E75",
+        "fallback-src": "https://nonshared-pack",
+        "fallback-src-sha256": "74409E2674DAA06C072729C6C8426C4CB3B7E0B85ED77792DB7A436E11D76DAF",
 
         "share-files": false
     },
diff --git a/test/web/emoji_api_controller_test.exs b/test/web/emoji_api_controller_test.exs
index bf56c1516..aa30e3058 100644
--- a/test/web/emoji_api_controller_test.exs
+++ b/test/web/emoji_api_controller_test.exs
@@ -42,9 +42,10 @@ test "downloading a shared pack from download_shared" do
     assert Enum.find(arch, fn {n, _} -> n == 'blank.png' end)
   end
 
-  test "downloading a shared pack from another instance via download_from, deleting it" do
+  test "downloading shared & unshared packs from another instance via download_from, deleting them" do
     on_exit(fn ->
       File.rm_rf!("test/instance_static/emoji/test_pack2")
+      File.rm_rf!("test/instance_static/emoji/test_pack_nonshared2")
     end)
 
     mock(fn
@@ -69,6 +70,12 @@ test "downloading a shared pack from another instance via download_from, deletin
         |> get(emoji_api_path(conn, :download_shared, "test_pack"))
         |> response(200)
         |> text()
+
+      %{
+        method: :get,
+        url: "https://nonshared-pack"
+      } ->
+        text(File.read!("test/instance_static/emoji/test_pack_nonshared/nonshared.zip"))
     end)
 
     admin = insert(:user, info: %{is_admin: true})
@@ -101,5 +108,36 @@ test "downloading a shared pack from another instance via download_from, deletin
            |> response(200) == "ok"
 
     refute File.exists?("test/instance_static/emoji/test_pack2")
+
+    # non-shared, downloaded from the fallback URL
+
+    conn = build_conn()
+
+    assert conn
+           |> put_req_header("content-type", "application/json")
+           |> assign(:user, admin)
+           |> post(
+             emoji_api_path(
+               conn,
+               :download_from
+             ),
+             %{
+               instance_address: "https://example.com",
+               pack_name: "test_pack_nonshared",
+               as: "test_pack_nonshared2"
+             }
+             |> Jason.encode!()
+           )
+           |> text_response(200) == "ok"
+
+    assert File.exists?("test/instance_static/emoji/test_pack_nonshared2/pack.json")
+    assert File.exists?("test/instance_static/emoji/test_pack_nonshared2/blank.png")
+
+    assert conn
+           |> assign(:user, admin)
+           |> delete(emoji_api_path(conn, :delete, "test_pack_nonshared2"))
+           |> response(200) == "ok"
+
+    refute File.exists?("test/instance_static/emoji/test_pack_nonshared2")
   end
 end

From bcc0bfd0c54784fe6a7ccd88fc083bd09dca41af Mon Sep 17 00:00:00 2001
From: Ekaterina Vaartis <vaartis@cock.li>
Date: Thu, 15 Aug 2019 19:55:58 +0300
Subject: [PATCH 14/48] Add an endpoint for emoji pack metadata updating

---
 .../web/emoji_api/emoji_api_controller.ex     | 49 ++++++++++++++++++-
 lib/pleroma/web/router.ex                     |  1 +
 2 files changed, 49 insertions(+), 1 deletion(-)

diff --git a/lib/pleroma/web/emoji_api/emoji_api_controller.ex b/lib/pleroma/web/emoji_api/emoji_api_controller.ex
index 3b9eab8b8..4096ccbed 100644
--- a/lib/pleroma/web/emoji_api/emoji_api_controller.ex
+++ b/lib/pleroma/web/emoji_api/emoji_api_controller.ex
@@ -196,7 +196,7 @@ def download_from(conn, %{"instance_address" => address, "pack_name" => name} =
           if pinfo[:fallback] do
             pack_file_path = Path.join(pack_dir, "pack.json")
 
-            File.write!(pack_file_path, Jason.encode!(full_pack))
+            File.write!(pack_file_path, Jason.encode!(full_pack, pretty: true))
           end
 
           conn |> text("ok")
@@ -222,4 +222,51 @@ def delete(conn, %{"name" => name}) do
         conn |> put_status(:internal_server_error) |> text("Couldn't delete the pack #{name}")
     end
   end
+
+  def update_metadata(conn, %{"name" => name, "new_data" => new_data}) do
+    pack_dir = Path.join(@emoji_dir_path, name)
+    pack_file_p = Path.join(pack_dir, "pack.json")
+
+    full_pack = Jason.decode!(File.read!(pack_file_p))
+
+    new_data =
+      if not is_nil(new_data["fallback-src"]) and is_nil(new_data["fallback-src-sha256"]) do
+        pack_arch = Tesla.get!(new_data["fallback-src"]).body
+
+        {:ok, flist} = :zip.unzip(pack_arch, [:memory])
+
+        # Check if all files from the pack.json are in the archive
+        has_all_files =
+          Enum.all?(full_pack["files"], fn {_, from_manifest} ->
+            Enum.find(flist, fn {from_archive, _} ->
+              to_string(from_archive) == from_manifest
+            end)
+          end)
+
+        unless has_all_files do
+          {:error,
+           conn
+           |> put_status(:bad_request)
+           |> text("The fallback archive does not have all files specified in pack.json")}
+        else
+          fallback_sha = :crypto.hash(:sha256, pack_arch) |> Base.encode16()
+
+          {:ok, new_data |> Map.put("fallback-src-sha256", fallback_sha)}
+        end
+      else
+        {:ok, new_data}
+      end
+
+    case new_data do
+      {:ok, new_data} ->
+        full_pack = Map.put(full_pack, "pack", new_data)
+        File.write!(pack_file_p, Jason.encode!(full_pack, pretty: true))
+
+        # Send new data back with fallback sha filled
+        conn |> json(new_data)
+
+      {:error, e} ->
+        e
+    end
+  end
 end
diff --git a/lib/pleroma/web/router.ex b/lib/pleroma/web/router.ex
index 4df0ca3c3..471d09c43 100644
--- a/lib/pleroma/web/router.ex
+++ b/lib/pleroma/web/router.ex
@@ -218,6 +218,7 @@ defmodule Pleroma.Web.Router do
       # Modifying packs
       pipe_through([:admin_api, :oauth_write])
 
+      post("/update_metadata/:name", EmojiAPIController, :update_metadata)
       delete("/delete/:name", EmojiAPIController, :delete)
       post("/download_from", EmojiAPIController, :download_from)
     end

From 9dc9689144a54f3e5513dd26de61ec43421d6d50 Mon Sep 17 00:00:00 2001
From: Ekaterina Vaartis <vaartis@cock.li>
Date: Fri, 16 Aug 2019 13:22:14 +0300
Subject: [PATCH 15/48] Add tests for pack metadata updating

---
 .../instance_static/emoji/test_pack/pack.json |   3 -
 test/web/emoji_api_controller_test.exs        | 118 ++++++++++++++++--
 2 files changed, 109 insertions(+), 12 deletions(-)

diff --git a/test/instance_static/emoji/test_pack/pack.json b/test/instance_static/emoji/test_pack/pack.json
index 1b260f0f7..5a8ee75f9 100644
--- a/test/instance_static/emoji/test_pack/pack.json
+++ b/test/instance_static/emoji/test_pack/pack.json
@@ -4,9 +4,6 @@
         "homepage": "https://pleroma.social",
         "description": "Test description",
 
-        "fallblack-src": "https://example.com",
-        "fallback-src-sha256": "65CDCCBCA9388A68023519F997367783BE69ED42864398CAC568E56F65CE0E75",
-
         "share-files": true
     },
 
diff --git a/test/web/emoji_api_controller_test.exs b/test/web/emoji_api_controller_test.exs
index aa30e3058..759a4dc04 100644
--- a/test/web/emoji_api_controller_test.exs
+++ b/test/web/emoji_api_controller_test.exs
@@ -5,6 +5,11 @@ defmodule Pleroma.Web.EmojiAPI.EmojiAPIControllerTest do
 
   import Pleroma.Factory
 
+  @emoji_dir_path Path.join(
+                    Pleroma.Config.get!([:instance, :static_dir]),
+                    "emoji"
+                  )
+
   test "shared & non-shared pack information in list_packs is ok" do
     conn = build_conn()
     resp = conn |> get(emoji_api_path(conn, :list_packs)) |> json_response(200)
@@ -44,8 +49,8 @@ test "downloading a shared pack from download_shared" do
 
   test "downloading shared & unshared packs from another instance via download_from, deleting them" do
     on_exit(fn ->
-      File.rm_rf!("test/instance_static/emoji/test_pack2")
-      File.rm_rf!("test/instance_static/emoji/test_pack_nonshared2")
+      File.rm_rf!("#{@emoji_dir_path}/test_pack2")
+      File.rm_rf!("#{@emoji_dir_path}/test_pack_nonshared2")
     end)
 
     mock(fn
@@ -75,7 +80,7 @@ test "downloading shared & unshared packs from another instance via download_fro
         method: :get,
         url: "https://nonshared-pack"
       } ->
-        text(File.read!("test/instance_static/emoji/test_pack_nonshared/nonshared.zip"))
+        text(File.read!("#{@emoji_dir_path}/test_pack_nonshared/nonshared.zip"))
     end)
 
     admin = insert(:user, info: %{is_admin: true})
@@ -99,15 +104,15 @@ test "downloading shared & unshared packs from another instance via download_fro
            )
            |> text_response(200) == "ok"
 
-    assert File.exists?("test/instance_static/emoji/test_pack2/pack.json")
-    assert File.exists?("test/instance_static/emoji/test_pack2/blank.png")
+    assert File.exists?("#{@emoji_dir_path}/test_pack2/pack.json")
+    assert File.exists?("#{@emoji_dir_path}/test_pack2/blank.png")
 
     assert conn
            |> assign(:user, admin)
            |> delete(emoji_api_path(conn, :delete, "test_pack2"))
            |> response(200) == "ok"
 
-    refute File.exists?("test/instance_static/emoji/test_pack2")
+    refute File.exists?("#{@emoji_dir_path}/test_pack2")
 
     # non-shared, downloaded from the fallback URL
 
@@ -130,14 +135,109 @@ test "downloading shared & unshared packs from another instance via download_fro
            )
            |> text_response(200) == "ok"
 
-    assert File.exists?("test/instance_static/emoji/test_pack_nonshared2/pack.json")
-    assert File.exists?("test/instance_static/emoji/test_pack_nonshared2/blank.png")
+    assert File.exists?("#{@emoji_dir_path}/test_pack_nonshared2/pack.json")
+    assert File.exists?("#{@emoji_dir_path}/test_pack_nonshared2/blank.png")
 
     assert conn
            |> assign(:user, admin)
            |> delete(emoji_api_path(conn, :delete, "test_pack_nonshared2"))
            |> response(200) == "ok"
 
-    refute File.exists?("test/instance_static/emoji/test_pack_nonshared2")
+    refute File.exists?("#{@emoji_dir_path}/test_pack_nonshared2")
+  end
+
+  describe "updating pack metadata" do
+    setup do
+      pack_file = "#{@emoji_dir_path}/test_pack/pack.json"
+      original_content = File.read!(pack_file)
+
+      on_exit(fn ->
+        File.write!(pack_file, original_content)
+      end)
+
+      {:ok,
+       admin: insert(:user, info: %{is_admin: true}),
+       pack_file: pack_file,
+       new_data: %{
+         "license" => "Test license changed",
+         "homepage" => "https://pleroma.social",
+         "description" => "Test description",
+         "share-files" => false
+       }}
+    end
+
+    test "for a pack without a fallback source", ctx do
+      conn = build_conn()
+
+      assert conn
+             |> assign(:user, ctx[:admin])
+             |> post(
+               emoji_api_path(conn, :update_metadata, "test_pack"),
+               %{
+                 "new_data" => ctx[:new_data]
+               }
+             )
+             |> json_response(200) == ctx[:new_data]
+
+      assert Jason.decode!(File.read!(ctx[:pack_file]))["pack"] == ctx[:new_data]
+    end
+
+    test "for a pack with a fallback source", ctx do
+      mock(fn
+        %{
+          method: :get,
+          url: "https://nonshared-pack"
+        } ->
+          text(File.read!("#{@emoji_dir_path}/test_pack_nonshared/nonshared.zip"))
+      end)
+
+      new_data = Map.put(ctx[:new_data], "fallback-src", "https://nonshared-pack")
+
+      new_data_with_sha =
+        Map.put(
+          new_data,
+          "fallback-src-sha256",
+          "74409E2674DAA06C072729C6C8426C4CB3B7E0B85ED77792DB7A436E11D76DAF"
+        )
+
+      conn = build_conn()
+
+      assert conn
+             |> assign(:user, ctx[:admin])
+             |> post(
+               emoji_api_path(conn, :update_metadata, "test_pack"),
+               %{
+                 "new_data" => new_data
+               }
+             )
+             |> json_response(200) == new_data_with_sha
+
+      assert Jason.decode!(File.read!(ctx[:pack_file]))["pack"] == new_data_with_sha
+    end
+
+    test "when the fallback source doesn't have all the files", ctx do
+      mock(fn
+        %{
+          method: :get,
+          url: "https://nonshared-pack"
+        } ->
+          {:ok, {'empty.zip', empty_arch}} = :zip.zip('empty.zip', [], [:memory])
+          text(empty_arch)
+      end)
+
+      new_data = Map.put(ctx[:new_data], "fallback-src", "https://nonshared-pack")
+
+      conn = build_conn()
+
+      assert conn
+             |> assign(:user, ctx[:admin])
+             |> post(
+               emoji_api_path(conn, :update_metadata, "test_pack"),
+               %{
+                 "new_data" => new_data
+               }
+             )
+             |> text_response(:bad_request) =~ "does not have all"
+    end
   end
 end

From 261d92f9c2605c720e7fce8b05025e5ac452e5c9 Mon Sep 17 00:00:00 2001
From: Ekaterina Vaartis <vaartis@cock.li>
Date: Fri, 16 Aug 2019 13:30:14 +0300
Subject: [PATCH 16/48] Update the pack fallback-src sha generation condition

The old one would not regenerate sha when fallback src changed
---
 lib/pleroma/web/emoji_api/emoji_api_controller.ex | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/lib/pleroma/web/emoji_api/emoji_api_controller.ex b/lib/pleroma/web/emoji_api/emoji_api_controller.ex
index 4096ccbed..4873129c4 100644
--- a/lib/pleroma/web/emoji_api/emoji_api_controller.ex
+++ b/lib/pleroma/web/emoji_api/emoji_api_controller.ex
@@ -229,8 +229,13 @@ def update_metadata(conn, %{"name" => name, "new_data" => new_data}) do
 
     full_pack = Jason.decode!(File.read!(pack_file_p))
 
+    # The new fallback-src is in the new data and it's not the same as it was in the old data
+    should_update_fb_sha =
+      not is_nil(new_data["fallback-src"]) and
+        new_data["fallback-src"] != full_pack["pack"]["fallback-src"]
+
     new_data =
-      if not is_nil(new_data["fallback-src"]) and is_nil(new_data["fallback-src-sha256"]) do
+      if should_update_fb_sha do
         pack_arch = Tesla.get!(new_data["fallback-src"]).body
 
         {:ok, flist} = :zip.unzip(pack_arch, [:memory])

From 9afe7258dd5ca1e5a6333a5a9f93d9ab43d4aaf4 Mon Sep 17 00:00:00 2001
From: Ekaterina Vaartis <vaartis@cock.li>
Date: Sun, 18 Aug 2019 22:05:38 +0300
Subject: [PATCH 17/48] Implememt emoji pack file updating + write tests

---
 .../web/emoji_api/emoji_api_controller.ex     | 132 +++++++++++++++++-
 lib/pleroma/web/router.ex                     |   3 +-
 test/web/emoji_api_controller_test.exs        |  69 ++++++++-
 3 files changed, 196 insertions(+), 8 deletions(-)

diff --git a/lib/pleroma/web/emoji_api/emoji_api_controller.ex b/lib/pleroma/web/emoji_api/emoji_api_controller.ex
index 4873129c4..dc3dcf1ea 100644
--- a/lib/pleroma/web/emoji_api/emoji_api_controller.ex
+++ b/lib/pleroma/web/emoji_api/emoji_api_controller.ex
@@ -223,7 +223,7 @@ def delete(conn, %{"name" => name}) do
     end
   end
 
-  def update_metadata(conn, %{"name" => name, "new_data" => new_data}) do
+  def update_metadata(conn, %{"pack_name" => name, "new_data" => new_data}) do
     pack_dir = Path.join(@emoji_dir_path, name)
     pack_file_p = Path.join(pack_dir, "pack.json")
 
@@ -274,4 +274,134 @@ def update_metadata(conn, %{"name" => name, "new_data" => new_data}) do
         e
     end
   end
+
+  def update_file(
+        conn,
+        %{"pack_name" => pack_name, "action" => action, "shortcode" => shortcode} = params
+      ) do
+    pack_dir = Path.join(@emoji_dir_path, pack_name)
+    pack_file_p = Path.join(pack_dir, "pack.json")
+
+    full_pack = Jason.decode!(File.read!(pack_file_p))
+
+    res =
+      case action do
+        "add" ->
+          unless Map.has_key?(full_pack["files"], shortcode) do
+            with %{"file" => %Plug.Upload{filename: filename, path: upload_path}} <- params do
+              # If there was a file name provided with the request, use it, otherwise just use the
+              # uploaded file name
+              filename =
+                if Map.has_key?(params, "filename") do
+                  params["filename"]
+                else
+                  filename
+                end
+
+              file_path = Path.join(pack_dir, filename)
+
+              # If the name contains directories, create them
+              if String.contains?(file_path, "/") do
+                File.mkdir_p!(Path.dirname(file_path))
+              end
+
+              # Copy the uploaded file from the temporary directory
+              File.copy!(upload_path, file_path)
+
+              updated_full_pack = put_in(full_pack, ["files", shortcode], filename)
+
+              {:ok, updated_full_pack}
+            else
+              _ -> {:error, conn |> put_status(:bad_request) |> text("\"file\" not provided")}
+            end
+          else
+            {:error,
+             conn
+             |> put_status(:conflict)
+             |> text("An emoji with the \"#{shortcode}\" shortcode already exists")}
+          end
+
+        "remove" ->
+          if Map.has_key?(full_pack["files"], shortcode) do
+            {emoji_file_path, updated_full_pack} = pop_in(full_pack, ["files", shortcode])
+
+            emoji_file_path = Path.join(pack_dir, emoji_file_path)
+
+            # Delete the emoji file
+            File.rm!(emoji_file_path)
+
+            # If the old directory has no more files, remove it
+            if String.contains?(emoji_file_path, "/") do
+              dir = Path.dirname(emoji_file_path)
+
+              if Enum.empty?(File.ls!(dir)) do
+                File.rmdir!(dir)
+              end
+            end
+
+            {:ok, updated_full_pack}
+          else
+            {:error,
+             conn |> put_status(:bad_request) |> text("Emoji \"#{shortcode}\" does not exist")}
+          end
+
+        "update" ->
+          if Map.has_key?(full_pack["files"], shortcode) do
+            with %{"new_shortcode" => new_shortcode, "new_filename" => new_filename} <- params do
+              # First, remove the old shortcode, saving the old path
+              {old_emoji_file_path, updated_full_pack} = pop_in(full_pack, ["files", shortcode])
+              old_emoji_file_path = Path.join(pack_dir, old_emoji_file_path)
+              new_emoji_file_path = Path.join(pack_dir, new_filename)
+
+              # If the name contains directories, create them
+              if String.contains?(new_emoji_file_path, "/") do
+                File.mkdir_p!(Path.dirname(new_emoji_file_path))
+              end
+
+              # Move/Rename the old filename to a new filename
+              # These are probably on the same filesystem, so just rename should work
+              :ok = File.rename(old_emoji_file_path, new_emoji_file_path)
+
+              # If the old directory has no more files, remove it
+              if String.contains?(old_emoji_file_path, "/") do
+                dir = Path.dirname(old_emoji_file_path)
+
+                if Enum.empty?(File.ls!(dir)) do
+                  File.rmdir!(dir)
+                end
+              end
+
+              # Then, put in the new shortcode with the new path
+              updated_full_pack =
+                put_in(updated_full_pack, ["files", new_shortcode], new_filename)
+
+              {:ok, updated_full_pack}
+            else
+              _ ->
+                {:error,
+                 conn
+                 |> put_status(:bad_request)
+                 |> text("new_shortcode or new_file were not specified")}
+            end
+          else
+            {:error,
+             conn |> put_status(:bad_request) |> text("Emoji \"#{shortcode}\" does not exist")}
+          end
+
+        _ ->
+          {:error, conn |> put_status(:bad_request) |> text("Unknown action: #{action}")}
+      end
+
+    case res do
+      {:ok, updated_full_pack} ->
+        # Write the emoji pack file
+        File.write!(pack_file_p, Jason.encode!(updated_full_pack, pretty: true))
+
+        # Return the modified file list
+        conn |> json(updated_full_pack["files"])
+
+      {:error, e} ->
+        e
+    end
+  end
 end
diff --git a/lib/pleroma/web/router.ex b/lib/pleroma/web/router.ex
index 471d09c43..acd6f740b 100644
--- a/lib/pleroma/web/router.ex
+++ b/lib/pleroma/web/router.ex
@@ -218,7 +218,8 @@ defmodule Pleroma.Web.Router do
       # Modifying packs
       pipe_through([:admin_api, :oauth_write])
 
-      post("/update_metadata/:name", EmojiAPIController, :update_metadata)
+      post("/update_file/:pack_name", EmojiAPIController, :update_file)
+      post("/update_metadata/:pack_name", EmojiAPIController, :update_metadata)
       delete("/delete/:name", EmojiAPIController, :delete)
       post("/download_from", EmojiAPIController, :download_from)
     end
diff --git a/test/web/emoji_api_controller_test.exs b/test/web/emoji_api_controller_test.exs
index 759a4dc04..6d3603da5 100644
--- a/test/web/emoji_api_controller_test.exs
+++ b/test/web/emoji_api_controller_test.exs
@@ -85,11 +85,10 @@ test "downloading shared & unshared packs from another instance via download_fro
 
     admin = insert(:user, info: %{is_admin: true})
 
-    conn = build_conn()
+    conn = build_conn() |> assign(:user, admin)
 
     assert conn
            |> put_req_header("content-type", "application/json")
-           |> assign(:user, admin)
            |> post(
              emoji_api_path(
                conn,
@@ -108,7 +107,6 @@ test "downloading shared & unshared packs from another instance via download_fro
     assert File.exists?("#{@emoji_dir_path}/test_pack2/blank.png")
 
     assert conn
-           |> assign(:user, admin)
            |> delete(emoji_api_path(conn, :delete, "test_pack2"))
            |> response(200) == "ok"
 
@@ -116,11 +114,10 @@ test "downloading shared & unshared packs from another instance via download_fro
 
     # non-shared, downloaded from the fallback URL
 
-    conn = build_conn()
+    conn = build_conn() |> assign(:user, admin)
 
     assert conn
            |> put_req_header("content-type", "application/json")
-           |> assign(:user, admin)
            |> post(
              emoji_api_path(
                conn,
@@ -139,7 +136,6 @@ test "downloading shared & unshared packs from another instance via download_fro
     assert File.exists?("#{@emoji_dir_path}/test_pack_nonshared2/blank.png")
 
     assert conn
-           |> assign(:user, admin)
            |> delete(emoji_api_path(conn, :delete, "test_pack_nonshared2"))
            |> response(200) == "ok"
 
@@ -240,4 +236,65 @@ test "when the fallback source doesn't have all the files", ctx do
              |> text_response(:bad_request) =~ "does not have all"
     end
   end
+
+  test "updating pack files" do
+    pack_file = "#{@emoji_dir_path}/test_pack/pack.json"
+    original_content = File.read!(pack_file)
+
+    on_exit(fn ->
+      File.write!(pack_file, original_content)
+
+      File.rm_rf!("#{@emoji_dir_path}/test_pack/dir")
+      File.rm_rf!("#{@emoji_dir_path}/test_pack/dir_2")
+    end)
+
+    admin = insert(:user, info: %{is_admin: true})
+
+    conn = build_conn()
+
+    same_name = %{
+      "action" => "add",
+      "shortcode" => "blank",
+      "filename" => "dir/blank.png",
+      "file" => %Plug.Upload{
+        filename: "blank.png",
+        path: "#{@emoji_dir_path}/test_pack/blank.png"
+      }
+    }
+
+    different_name = %{same_name | "shortcode" => "blank_2"}
+
+    conn = conn |> assign(:user, admin)
+
+    assert conn
+           |> post(emoji_api_path(conn, :update_file, "test_pack"), same_name)
+           |> text_response(:conflict) =~ "already exists"
+
+    assert conn
+           |> post(emoji_api_path(conn, :update_file, "test_pack"), different_name)
+           |> json_response(200) == %{"blank" => "blank.png", "blank_2" => "dir/blank.png"}
+
+    assert File.exists?("#{@emoji_dir_path}/test_pack/dir/blank.png")
+
+    assert conn
+           |> post(emoji_api_path(conn, :update_file, "test_pack"), %{
+             "action" => "update",
+             "shortcode" => "blank_2",
+             "new_shortcode" => "blank_3",
+             "new_filename" => "dir_2/blank_3.png"
+           })
+           |> json_response(200) == %{"blank" => "blank.png", "blank_3" => "dir_2/blank_3.png"}
+
+    refute File.exists?("#{@emoji_dir_path}/test_pack/dir/")
+    assert File.exists?("#{@emoji_dir_path}/test_pack/dir_2/blank_3.png")
+
+    assert conn
+           |> post(emoji_api_path(conn, :update_file, "test_pack"), %{
+             "action" => "remove",
+             "shortcode" => "blank_3"
+           })
+           |> json_response(200) == %{"blank" => "blank.png"}
+
+    refute File.exists?("#{@emoji_dir_path}/test_pack/dir_2/")
+  end
 end

From 16edfef12e6781971e2056a80a0ac38dcc254b1b Mon Sep 17 00:00:00 2001
From: Ekaterina Vaartis <vaartis@cock.li>
Date: Mon, 19 Aug 2019 19:26:15 +0300
Subject: [PATCH 18/48] Handle empty
 shortcode/filename/new_shortcode/new_filename

---
 .../web/emoji_api/emoji_api_controller.ex     | 88 +++++++++++--------
 1 file changed, 52 insertions(+), 36 deletions(-)

diff --git a/lib/pleroma/web/emoji_api/emoji_api_controller.ex b/lib/pleroma/web/emoji_api/emoji_api_controller.ex
index dc3dcf1ea..fdecbb700 100644
--- a/lib/pleroma/web/emoji_api/emoji_api_controller.ex
+++ b/lib/pleroma/web/emoji_api/emoji_api_controller.ex
@@ -298,19 +298,27 @@ def update_file(
                   filename
                 end
 
-              file_path = Path.join(pack_dir, filename)
+              unless String.trim(shortcode) |> String.length() == 0 or
+                       String.trim(filename) |> String.length() == 0 do
+                file_path = Path.join(pack_dir, filename)
 
-              # If the name contains directories, create them
-              if String.contains?(file_path, "/") do
-                File.mkdir_p!(Path.dirname(file_path))
+                # If the name contains directories, create them
+                if String.contains?(file_path, "/") do
+                  File.mkdir_p!(Path.dirname(file_path))
+                end
+
+                # Copy the uploaded file from the temporary directory
+                File.copy!(upload_path, file_path)
+
+                updated_full_pack = put_in(full_pack, ["files", shortcode], filename)
+
+                {:ok, updated_full_pack}
+              else
+                {:error,
+                 conn
+                 |> put_status(:bad_request)
+                 |> text("shortcode or filename cannot be empty")}
               end
-
-              # Copy the uploaded file from the temporary directory
-              File.copy!(upload_path, file_path)
-
-              updated_full_pack = put_in(full_pack, ["files", shortcode], filename)
-
-              {:ok, updated_full_pack}
             else
               _ -> {:error, conn |> put_status(:bad_request) |> text("\"file\" not provided")}
             end
@@ -348,34 +356,42 @@ def update_file(
         "update" ->
           if Map.has_key?(full_pack["files"], shortcode) do
             with %{"new_shortcode" => new_shortcode, "new_filename" => new_filename} <- params do
-              # First, remove the old shortcode, saving the old path
-              {old_emoji_file_path, updated_full_pack} = pop_in(full_pack, ["files", shortcode])
-              old_emoji_file_path = Path.join(pack_dir, old_emoji_file_path)
-              new_emoji_file_path = Path.join(pack_dir, new_filename)
+              unless String.trim(new_shortcode) |> String.length() == 0 or
+                       String.trim(new_filename) |> String.length() == 0 do
+                # First, remove the old shortcode, saving the old path
+                {old_emoji_file_path, updated_full_pack} = pop_in(full_pack, ["files", shortcode])
+                old_emoji_file_path = Path.join(pack_dir, old_emoji_file_path)
+                new_emoji_file_path = Path.join(pack_dir, new_filename)
 
-              # If the name contains directories, create them
-              if String.contains?(new_emoji_file_path, "/") do
-                File.mkdir_p!(Path.dirname(new_emoji_file_path))
-              end
-
-              # Move/Rename the old filename to a new filename
-              # These are probably on the same filesystem, so just rename should work
-              :ok = File.rename(old_emoji_file_path, new_emoji_file_path)
-
-              # If the old directory has no more files, remove it
-              if String.contains?(old_emoji_file_path, "/") do
-                dir = Path.dirname(old_emoji_file_path)
-
-                if Enum.empty?(File.ls!(dir)) do
-                  File.rmdir!(dir)
+                # If the name contains directories, create them
+                if String.contains?(new_emoji_file_path, "/") do
+                  File.mkdir_p!(Path.dirname(new_emoji_file_path))
                 end
+
+                # Move/Rename the old filename to a new filename
+                # These are probably on the same filesystem, so just rename should work
+                :ok = File.rename(old_emoji_file_path, new_emoji_file_path)
+
+                # If the old directory has no more files, remove it
+                if String.contains?(old_emoji_file_path, "/") do
+                  dir = Path.dirname(old_emoji_file_path)
+
+                  if Enum.empty?(File.ls!(dir)) do
+                    File.rmdir!(dir)
+                  end
+                end
+
+                # Then, put in the new shortcode with the new path
+                updated_full_pack =
+                  put_in(updated_full_pack, ["files", new_shortcode], new_filename)
+
+                {:ok, updated_full_pack}
+              else
+                {:error,
+                 conn
+                 |> put_status(:bad_request)
+                 |> text("new_shortcode or new_filename cannot be empty")}
               end
-
-              # Then, put in the new shortcode with the new path
-              updated_full_pack =
-                put_in(updated_full_pack, ["files", new_shortcode], new_filename)
-
-              {:ok, updated_full_pack}
             else
               _ ->
                 {:error,

From 8dbdd5c280d15fde4712989001d4ddee1cd37cff Mon Sep 17 00:00:00 2001
From: Ekaterina Vaartis <vaartis@cock.li>
Date: Tue, 20 Aug 2019 14:52:36 +0300
Subject: [PATCH 19/48] Allow uploading new emojis to packs from URLs

---
 .../web/emoji_api/emoji_api_controller.ex     | 65 ++++++++++---------
 test/web/emoji_api_controller_test.exs        | 34 ++++++++++
 2 files changed, 69 insertions(+), 30 deletions(-)

diff --git a/lib/pleroma/web/emoji_api/emoji_api_controller.ex b/lib/pleroma/web/emoji_api/emoji_api_controller.ex
index fdecbb700..87ae0e092 100644
--- a/lib/pleroma/web/emoji_api/emoji_api_controller.ex
+++ b/lib/pleroma/web/emoji_api/emoji_api_controller.ex
@@ -288,39 +288,44 @@ def update_file(
       case action do
         "add" ->
           unless Map.has_key?(full_pack["files"], shortcode) do
-            with %{"file" => %Plug.Upload{filename: filename, path: upload_path}} <- params do
-              # If there was a file name provided with the request, use it, otherwise just use the
-              # uploaded file name
-              filename =
-                if Map.has_key?(params, "filename") do
-                  params["filename"]
-                else
-                  filename
-                end
-
-              unless String.trim(shortcode) |> String.length() == 0 or
-                       String.trim(filename) |> String.length() == 0 do
-                file_path = Path.join(pack_dir, filename)
-
-                # If the name contains directories, create them
-                if String.contains?(file_path, "/") do
-                  File.mkdir_p!(Path.dirname(file_path))
-                end
-
-                # Copy the uploaded file from the temporary directory
-                File.copy!(upload_path, file_path)
-
-                updated_full_pack = put_in(full_pack, ["files", shortcode], filename)
-
-                {:ok, updated_full_pack}
+            filename =
+              if Map.has_key?(params, "filename") do
+                params["filename"]
               else
-                {:error,
-                 conn
-                 |> put_status(:bad_request)
-                 |> text("shortcode or filename cannot be empty")}
+                case params["file"] do
+                  %Plug.Upload{filename: filename} -> filename
+                  url when is_binary(url) -> Path.basename(url)
+                end
               end
+
+            unless String.trim(shortcode) |> String.length() == 0 or
+                     String.trim(filename) |> String.length() == 0 do
+              file_path = Path.join(pack_dir, filename)
+
+              # If the name contains directories, create them
+              if String.contains?(file_path, "/") do
+                File.mkdir_p!(Path.dirname(file_path))
+              end
+
+              case params["file"] do
+                %Plug.Upload{path: upload_path} ->
+                  # Copy the uploaded file from the temporary directory
+                  File.copy!(upload_path, file_path)
+
+                url when is_binary(url) ->
+                  # Download and write the file
+                  file_contents = Tesla.get!(url).body
+                  File.write!(file_path, file_contents)
+              end
+
+              updated_full_pack = put_in(full_pack, ["files", shortcode], filename)
+
+              {:ok, updated_full_pack}
             else
-              _ -> {:error, conn |> put_status(:bad_request) |> text("\"file\" not provided")}
+              {:error,
+               conn
+               |> put_status(:bad_request)
+               |> text("shortcode or filename cannot be empty")}
             end
           else
             {:error,
diff --git a/test/web/emoji_api_controller_test.exs b/test/web/emoji_api_controller_test.exs
index 6d3603da5..c1aece691 100644
--- a/test/web/emoji_api_controller_test.exs
+++ b/test/web/emoji_api_controller_test.exs
@@ -244,6 +244,7 @@ test "updating pack files" do
     on_exit(fn ->
       File.write!(pack_file, original_content)
 
+      File.rm_rf!("#{@emoji_dir_path}/test_pack/blank_url.png")
       File.rm_rf!("#{@emoji_dir_path}/test_pack/dir")
       File.rm_rf!("#{@emoji_dir_path}/test_pack/dir_2")
     end)
@@ -296,5 +297,38 @@ test "updating pack files" do
            |> json_response(200) == %{"blank" => "blank.png"}
 
     refute File.exists?("#{@emoji_dir_path}/test_pack/dir_2/")
+
+    mock(fn
+      %{
+        method: :get,
+        url: "https://test-blank/blank_url.png"
+      } ->
+        text(File.read!("#{@emoji_dir_path}/test_pack/blank.png"))
+    end)
+
+    # The name should be inferred from the URL ending
+    from_url = %{
+      "action" => "add",
+      "shortcode" => "blank_url",
+      "file" => "https://test-blank/blank_url.png"
+    }
+
+    assert conn
+           |> post(emoji_api_path(conn, :update_file, "test_pack"), from_url)
+           |> json_response(200) == %{
+             "blank" => "blank.png",
+             "blank_url" => "blank_url.png"
+           }
+
+    assert File.exists?("#{@emoji_dir_path}/test_pack/blank_url.png")
+
+    assert conn
+           |> post(emoji_api_path(conn, :update_file, "test_pack"), %{
+             "action" => "remove",
+             "shortcode" => "blank_url"
+           })
+           |> json_response(200) == %{"blank" => "blank.png"}
+
+    refute File.exists?("#{@emoji_dir_path}/test_pack/blank_url.png")
   end
 end

From 6b4a144e4d9fa17db6fbda800511f7f41ae1c731 Mon Sep 17 00:00:00 2001
From: vaartis <vaartis@cock.li>
Date: Sat, 24 Aug 2019 21:58:21 +0000
Subject: [PATCH 20/48] Remove unused yaml dependency from mix.lock

---
 mix.lock | 1 -
 1 file changed, 1 deletion(-)

diff --git a/mix.lock b/mix.lock
index d27041b96..24b34c09c 100644
--- a/mix.lock
+++ b/mix.lock
@@ -99,5 +99,4 @@
   "unsafe": {:hex, :unsafe, "1.0.1", "a27e1874f72ee49312e0a9ec2e0b27924214a05e3ddac90e91727bc76f8613d8", [:mix], [], "hexpm"},
   "web_push_encryption": {:hex, :web_push_encryption, "0.2.1", "d42cecf73420d9dc0053ba3299cc8c8d6ff2be2487d67ca2a57265868e4d9a98", [:mix], [{:httpoison, "~> 1.0", [hex: :httpoison, repo: "hexpm", optional: false]}, {:jose, "~> 1.8", [hex: :jose, repo: "hexpm", optional: false]}, {:poison, "~> 3.0", [hex: :poison, repo: "hexpm", optional: false]}], "hexpm"},
   "websocket_client": {:git, "https://github.com/jeremyong/websocket_client.git", "9a6f65d05ebf2725d62fb19262b21f1805a59fbf", []},
-  "yamerl": {:hex, :yamerl, "0.4.0", "ae215b1242810a9bc07716b88062f1bfe06f6bc7cf68372091f630baa536df79", [:rebar3], [], "hexpm"},
 }

From f5131540dc9bbf8038e6625f4524ca01b52abbbf Mon Sep 17 00:00:00 2001
From: Ekaterina Vaartis <vaartis@cock.li>
Date: Wed, 28 Aug 2019 19:29:01 +0300
Subject: [PATCH 21/48] Add a way to create emoji packs via an endpoint

---
 .../web/emoji_api/emoji_api_controller.ex     | 21 ++++++++++++
 lib/pleroma/web/router.ex                     |  1 +
 test/web/emoji_api_controller_test.exs        | 34 +++++++++++++++++++
 3 files changed, 56 insertions(+)

diff --git a/lib/pleroma/web/emoji_api/emoji_api_controller.ex b/lib/pleroma/web/emoji_api/emoji_api_controller.ex
index 87ae0e092..0bd9cd207 100644
--- a/lib/pleroma/web/emoji_api/emoji_api_controller.ex
+++ b/lib/pleroma/web/emoji_api/emoji_api_controller.ex
@@ -211,6 +211,27 @@ def download_from(conn, %{"instance_address" => address, "pack_name" => name} =
     end
   end
 
+  def create(conn, %{"name" => name}) do
+    pack_dir = Path.join(@emoji_dir_path, name)
+
+    unless File.exists?(pack_dir) do
+      File.mkdir_p!(pack_dir)
+
+      pack_file_p = Path.join(pack_dir, "pack.json")
+
+      File.write!(
+        pack_file_p,
+        Jason.encode!(%{pack: %{}, files: %{}})
+      )
+
+      conn |> text("ok")
+    else
+      conn
+      |> put_status(:conflict)
+      |> text("A pack named \"#{name}\" already exists")
+    end
+  end
+
   def delete(conn, %{"name" => name}) do
     pack_dir = Path.join(@emoji_dir_path, name)
 
diff --git a/lib/pleroma/web/router.ex b/lib/pleroma/web/router.ex
index acd6f740b..a21fefc70 100644
--- a/lib/pleroma/web/router.ex
+++ b/lib/pleroma/web/router.ex
@@ -220,6 +220,7 @@ defmodule Pleroma.Web.Router do
 
       post("/update_file/:pack_name", EmojiAPIController, :update_file)
       post("/update_metadata/:pack_name", EmojiAPIController, :update_metadata)
+      post("/create/:name", EmojiAPIController, :create)
       delete("/delete/:name", EmojiAPIController, :delete)
       post("/download_from", EmojiAPIController, :download_from)
     end
diff --git a/test/web/emoji_api_controller_test.exs b/test/web/emoji_api_controller_test.exs
index c1aece691..fa194a26c 100644
--- a/test/web/emoji_api_controller_test.exs
+++ b/test/web/emoji_api_controller_test.exs
@@ -331,4 +331,38 @@ test "updating pack files" do
 
     refute File.exists?("#{@emoji_dir_path}/test_pack/blank_url.png")
   end
+
+  test "creating and deleting a pack" do
+    on_exit(fn ->
+      File.rm_rf!("#{@emoji_dir_path}/test_created")
+    end)
+
+    admin = insert(:user, info: %{is_admin: true})
+
+    conn = build_conn() |> assign(:user, admin)
+
+    assert conn
+           |> put_req_header("content-type", "application/json")
+           |> post(
+             emoji_api_path(
+               conn,
+               :create,
+               "test_created"
+             )
+           )
+           |> text_response(200) == "ok"
+
+    assert File.exists?("#{@emoji_dir_path}/test_created/pack.json")
+
+    assert Jason.decode!(File.read!("#{@emoji_dir_path}/test_created/pack.json")) == %{
+             "pack" => %{},
+             "files" => %{}
+           }
+
+    assert conn
+           |> delete(emoji_api_path(conn, :delete, "test_created"))
+           |> response(200) == "ok"
+
+    refute File.exists?("#{@emoji_dir_path}/test_created/pack.json")
+  end
 end

From 13cd93a0d314238427c217ec0ab8f59f329321f5 Mon Sep 17 00:00:00 2001
From: Ekaterina Vaartis <vaartis@cock.li>
Date: Sun, 1 Sep 2019 15:38:45 +0300
Subject: [PATCH 22/48] Use && insted of "and" for checking shared-files for
 packs

share-files can be nil and "and" does not like that
---
 lib/pleroma/web/emoji_api/emoji_api_controller.ex | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lib/pleroma/web/emoji_api/emoji_api_controller.ex b/lib/pleroma/web/emoji_api/emoji_api_controller.ex
index 0bd9cd207..f34a4e08c 100644
--- a/lib/pleroma/web/emoji_api/emoji_api_controller.ex
+++ b/lib/pleroma/web/emoji_api/emoji_api_controller.ex
@@ -64,7 +64,7 @@ defp can_download?(pack, pack_path) do
     # If the pack is set as shared, check if it can be downloaded
     # That means that when asked, the pack can be packed and sent to the remote
     # Otherwise, they'd have to download it from external-src
-    pack["pack"]["share-files"] and
+    pack["pack"]["share-files"] &&
       Enum.all?(pack["files"], fn {_, path} ->
         File.exists?(Path.join(pack_path, path))
       end)

From 9eb2ee4df0478daec1172eec2289868105b72756 Mon Sep 17 00:00:00 2001
From: Ekaterina Vaartis <vaartis@cock.li>
Date: Tue, 10 Sep 2019 21:16:30 +0300
Subject: [PATCH 23/48] Allow importing old (emoji.txt / plain) packs from the
 filesystem

---
 .../web/emoji_api/emoji_api_controller.ex     |  66 ++++++++++++++++++
 lib/pleroma/web/router.ex                     |   2 +
 .../emoji/test_pack_for_import/blank.png      | Bin 0 -> 95 bytes
 test/web/emoji_api_controller_test.exs        |  41 +++++++++++
 4 files changed, 109 insertions(+)
 create mode 100644 test/instance_static/emoji/test_pack_for_import/blank.png

diff --git a/lib/pleroma/web/emoji_api/emoji_api_controller.ex b/lib/pleroma/web/emoji_api/emoji_api_controller.ex
index f34a4e08c..dffb91b0f 100644
--- a/lib/pleroma/web/emoji_api/emoji_api_controller.ex
+++ b/lib/pleroma/web/emoji_api/emoji_api_controller.ex
@@ -446,4 +446,70 @@ def update_file(
         e
     end
   end
+
+  def import_from_fs(conn, _params) do
+    case File.ls(@emoji_dir_path) do
+      {:error, _} ->
+        conn
+        |> put_status(:internal_server_error)
+        |> text("Error accessing emoji pack directory")
+
+      {:ok, results} ->
+        imported_pack_names =
+          results
+          |> Enum.filter(fn file ->
+            dir_path = Path.join(@emoji_dir_path, file)
+            # Find the directories that do NOT have pack.json
+            File.dir?(dir_path) and not File.exists?(Path.join(dir_path, "pack.json"))
+          end)
+          |> Enum.map(fn dir ->
+            dir_path = Path.join(@emoji_dir_path, dir)
+            emoji_txt_path = Path.join(dir_path, "emoji.txt")
+
+            files_for_pack =
+              if File.exists?(emoji_txt_path) do
+                # There's an emoji.txt file, it's likely from a pack installed by the pack manager.
+                # Make a pack.json file from the contents of that emoji.txt fileh
+
+                # FIXME: Copy-pasted from Pleroma.Emoji/load_from_file_stream/2
+
+                # Create a map of shortcodes to filenames from emoji.txt
+
+                File.read!(emoji_txt_path)
+                |> String.split("\n")
+                |> Enum.map(&String.trim/1)
+                |> Enum.map(fn line ->
+                  case String.split(line, ~r/,\s*/) do
+                    # This matches both strings with and without tags and we don't care about tags here
+                    [name, file | _] ->
+                      {name, file}
+
+                    _ ->
+                      nil
+                  end
+                end)
+                |> Enum.filter(fn x -> not is_nil(x) end)
+                |> Enum.into(%{})
+              else
+                # If there's no emoji.txt, assume all files that are of certain extensions from the config
+                # are emojis and import them all
+                Pleroma.Emoji.make_shortcode_to_file_map(
+                  dir_path,
+                  Pleroma.Config.get!([:emoji, :pack_extensions])
+                )
+              end
+
+            pack_json_contents = Jason.encode!(%{pack: %{}, files: files_for_pack})
+
+            File.write!(
+              Path.join(dir_path, "pack.json"),
+              pack_json_contents
+            )
+
+            dir
+          end)
+
+        conn |> json(imported_pack_names)
+    end
+  end
 end
diff --git a/lib/pleroma/web/router.ex b/lib/pleroma/web/router.ex
index a21fefc70..1252048f0 100644
--- a/lib/pleroma/web/router.ex
+++ b/lib/pleroma/web/router.ex
@@ -218,6 +218,8 @@ defmodule Pleroma.Web.Router do
       # Modifying packs
       pipe_through([:admin_api, :oauth_write])
 
+      post("/import_from_fs", EmojiAPIController, :import_from_fs)
+
       post("/update_file/:pack_name", EmojiAPIController, :update_file)
       post("/update_metadata/:pack_name", EmojiAPIController, :update_metadata)
       post("/create/:name", EmojiAPIController, :create)
diff --git a/test/instance_static/emoji/test_pack_for_import/blank.png b/test/instance_static/emoji/test_pack_for_import/blank.png
new file mode 100644
index 0000000000000000000000000000000000000000..8f50fa02340e7e09e562f86e00b6e4bd6ad1d565
GIT binary patch
literal 95
zcmeAS@N?(olHy`uVBq!ia0vp^4Is=2Bp6=1#-sr$rjj7PU<QV=$!9HqJPA)1$B+uf
q<ORkOtcw#wdYS?axZDnEFfed5Ffe}4nR*bYhQZU-&t;ucLK6U?=oVoB

literal 0
HcmV?d00001

diff --git a/test/web/emoji_api_controller_test.exs b/test/web/emoji_api_controller_test.exs
index fa194a26c..8b2a942ce 100644
--- a/test/web/emoji_api_controller_test.exs
+++ b/test/web/emoji_api_controller_test.exs
@@ -365,4 +365,45 @@ test "creating and deleting a pack" do
 
     refute File.exists?("#{@emoji_dir_path}/test_created/pack.json")
   end
+
+  test "filesystem import" do
+    on_exit(fn ->
+      File.rm!("#{@emoji_dir_path}/test_pack_for_import/emoji.txt")
+      File.rm!("#{@emoji_dir_path}/test_pack_for_import/pack.json")
+    end)
+
+    conn = build_conn()
+    resp = conn |> get(emoji_api_path(conn, :list_packs)) |> json_response(200)
+
+    refute Map.has_key?(resp, "test_pack_for_import")
+
+    admin = insert(:user, info: %{is_admin: true})
+
+    assert conn
+           |> assign(:user, admin)
+           |> post(emoji_api_path(conn, :import_from_fs))
+           |> json_response(200) == ["test_pack_for_import"]
+
+    resp = conn |> get(emoji_api_path(conn, :list_packs)) |> json_response(200)
+    assert resp["test_pack_for_import"]["files"] == %{"blank" => "blank.png"}
+
+    File.rm!("#{@emoji_dir_path}/test_pack_for_import/pack.json")
+    refute File.exists?("#{@emoji_dir_path}/test_pack_for_import/pack.json")
+
+    emoji_txt_content = "blank, blank.png, Fun\n\nblank2, blank.png"
+
+    File.write!("#{@emoji_dir_path}/test_pack_for_import/emoji.txt", emoji_txt_content)
+
+    assert conn
+           |> assign(:user, admin)
+           |> post(emoji_api_path(conn, :import_from_fs))
+           |> json_response(200) == ["test_pack_for_import"]
+
+    resp = conn |> get(emoji_api_path(conn, :list_packs)) |> json_response(200)
+
+    assert resp["test_pack_for_import"]["files"] == %{
+             "blank" => "blank.png",
+             "blank2" => "blank.png"
+           }
+  end
 end

From 87057101b0e14eb51ff9367dfe9c5522ea933161 Mon Sep 17 00:00:00 2001
From: Ekaterina Vaartis <vaartis@cock.li>
Date: Tue, 10 Sep 2019 21:34:57 +0300
Subject: [PATCH 24/48] Add documentation for the emoji api endpoints

---
 .../web/emoji_api/emoji_api_controller.ex     | 52 +++++++++++++++++++
 1 file changed, 52 insertions(+)

diff --git a/lib/pleroma/web/emoji_api/emoji_api_controller.ex b/lib/pleroma/web/emoji_api/emoji_api_controller.ex
index dffb91b0f..dc676b00f 100644
--- a/lib/pleroma/web/emoji_api/emoji_api_controller.ex
+++ b/lib/pleroma/web/emoji_api/emoji_api_controller.ex
@@ -16,6 +16,12 @@ def reload(conn, _params) do
 
   @cache_seconds_per_file Pleroma.Config.get!([:emoji, :shared_pack_cache_seconds_per_file])
 
+  @doc """
+  Lists the packs available on the instance as JSON.
+
+  The information is public and does not require authentification. The format is
+  a map of "pack directory name" to pack.json contents.
+  """
   def list_packs(conn, _params) do
     pack_infos =
       case File.ls(@emoji_dir_path) do
@@ -116,6 +122,10 @@ defp make_archive(name, pack, pack_dir) do
     zip_result
   end
 
+  @doc """
+  An endpoint for other instances (via admin UI) or users (via browser)
+  to download packs that the instance shares.
+  """
   def download_shared(conn, %{"name" => name}) do
     pack_dir = Path.join(@emoji_dir_path, name)
     pack_file = Path.join(pack_dir, "pack.json")
@@ -143,6 +153,13 @@ def download_shared(conn, %{"name" => name}) do
     end
   end
 
+  @doc """
+  An admin endpoint to request downloading a pack named `pack_name` from the instance
+  `instance_address`.
+
+  If the requested instance's admin chose to share the pack, it will be downloaded
+  from that instance, otherwise it will be downloaded from the fallback source, if there is one.
+  """
   def download_from(conn, %{"instance_address" => address, "pack_name" => name} = data) do
     list_uri = "#{address}/api/pleroma/emoji/packs/list"
 
@@ -211,6 +228,9 @@ def download_from(conn, %{"instance_address" => address, "pack_name" => name} =
     end
   end
 
+  @doc """
+  Creates an empty pack named `name` which then can be updated via the admin UI.
+  """
   def create(conn, %{"name" => name}) do
     pack_dir = Path.join(@emoji_dir_path, name)
 
@@ -232,6 +252,9 @@ def create(conn, %{"name" => name}) do
     end
   end
 
+  @doc """
+  Deletes the pack `name` and all it's files.
+  """
   def delete(conn, %{"name" => name}) do
     pack_dir = Path.join(@emoji_dir_path, name)
 
@@ -244,6 +267,11 @@ def delete(conn, %{"name" => name}) do
     end
   end
 
+  @doc """
+  An endpoint to update `pack_names`'s metadata.
+
+  `new_data` is the new metadata for the pack, that will replace the old metadata.
+  """
   def update_metadata(conn, %{"pack_name" => name, "new_data" => new_data}) do
     pack_dir = Path.join(@emoji_dir_path, name)
     pack_file_p = Path.join(pack_dir, "pack.json")
@@ -296,6 +324,20 @@ def update_metadata(conn, %{"pack_name" => name, "new_data" => new_data}) do
     end
   end
 
+  @doc """
+  Updates a file in a pack.
+
+  Updating can mean three things:
+
+  - `add` adds an emoji named `shortcode` to the pack `pack_name`,
+    that means that the emoji file needs to be uploaded with the request
+    (thus requiring it to be a multipart request) and be named `file`.
+    There can also be an optional `filename` that will be the new emoji file name
+    (if it's not there, the name will be taken from the uploaded file).
+  - `update` changes emoji shortcode (from `shortcode` to `new_shortcode` or moves the file
+    (from the current filename to `new_filename`)
+  - `remove` removes the emoji named `shortcode` and it's associated file
+  """
   def update_file(
         conn,
         %{"pack_name" => pack_name, "action" => action, "shortcode" => shortcode} = params
@@ -447,6 +489,16 @@ def update_file(
     end
   end
 
+  @doc """
+  Imports emoji from the filesystem.
+
+  Importing means checking all the directories in the
+  `$instance_static/emoji/` for directories which do not have
+  `pack.json`. If one has an emoji.txt file, that file will be used
+  to create a `pack.json` file with it's contents. If the directory has
+  neither, all the files with specific configured extenstions will be
+  assumed to be emojis and stored in the new `pack.json` file.
+  """
   def import_from_fs(conn, _params) do
     case File.ls(@emoji_dir_path) do
       {:error, _} ->

From f6d4acc87181c94fa202ff5673f741ae9cb45b14 Mon Sep 17 00:00:00 2001
From: Ekaterina Vaartis <vaartis@cock.li>
Date: Tue, 10 Sep 2019 22:09:20 +0300
Subject: [PATCH 25/48] Fix credo warnings

---
 lib/pleroma/web/emoji_api/emoji_api_controller.ex | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/lib/pleroma/web/emoji_api/emoji_api_controller.ex b/lib/pleroma/web/emoji_api/emoji_api_controller.ex
index dc676b00f..cbd237519 100644
--- a/lib/pleroma/web/emoji_api/emoji_api_controller.ex
+++ b/lib/pleroma/web/emoji_api/emoji_api_controller.ex
@@ -532,7 +532,8 @@ def import_from_fs(conn, _params) do
                 |> Enum.map(&String.trim/1)
                 |> Enum.map(fn line ->
                   case String.split(line, ~r/,\s*/) do
-                    # This matches both strings with and without tags and we don't care about tags here
+                    # This matches both strings with and without tags
+                    # and we don't care about tags here
                     [name, file | _] ->
                       {name, file}
 
@@ -543,8 +544,8 @@ def import_from_fs(conn, _params) do
                 |> Enum.filter(fn x -> not is_nil(x) end)
                 |> Enum.into(%{})
               else
-                # If there's no emoji.txt, assume all files that are of certain extensions from the config
-                # are emojis and import them all
+                # If there's no emoji.txt, assume all files
+                # that are of certain extensions from the config are emojis and import them all
                 Pleroma.Emoji.make_shortcode_to_file_map(
                   dir_path,
                   Pleroma.Config.get!([:emoji, :pack_extensions])

From 163082de6f789044b4fcb0c69f5b4cfd89731903 Mon Sep 17 00:00:00 2001
From: vaartis <vaartis@cock.li>
Date: Wed, 11 Sep 2019 09:07:19 +0000
Subject: [PATCH 26/48] Apply suggestion to
 lib/pleroma/web/emoji_api/emoji_api_controller.ex

---
 .../web/emoji_api/emoji_api_controller.ex     | 20 ++++++-------------
 1 file changed, 6 insertions(+), 14 deletions(-)

diff --git a/lib/pleroma/web/emoji_api/emoji_api_controller.ex b/lib/pleroma/web/emoji_api/emoji_api_controller.ex
index cbd237519..499802fa5 100644
--- a/lib/pleroma/web/emoji_api/emoji_api_controller.ex
+++ b/lib/pleroma/web/emoji_api/emoji_api_controller.ex
@@ -104,22 +104,14 @@ defp make_archive(name, pack, pack_dir) do
     # Having a different pack.json md5 invalidates cache
     pack_file_md5 = :crypto.hash(:md5, File.read!(Path.join(pack_dir, "pack.json")))
 
-    maybe_cached_pack = Cachex.get!(:emoji_packs_cache, name)
+    case Cachex.get!(:emoji_packs_cache, name) do
+      %{pack_file_md5: ^pack_file_md5, pack_data: zip_result} ->
+        Logger.debug("Using cache for the '#{name}' shared emoji pack")
+        zip_result
 
-    zip_result =
-      if is_nil(maybe_cached_pack) do
+      _ ->
         create_archive_and_cache(name, pack, pack_dir, pack_file_md5)
-      else
-        if maybe_cached_pack[:pack_file_md5] == pack_file_md5 do
-          Logger.debug("Using cache for the '#{name}' shared emoji pack")
-
-          maybe_cached_pack[:pack_data]
-        else
-          create_archive_and_cache(name, pack, pack_dir, pack_file_md5)
-        end
-      end
-
-    zip_result
+    end
   end
 
   @doc """

From c049c32270b8f70ae679e739730a3f63cdbd7d95 Mon Sep 17 00:00:00 2001
From: vaartis <vaartis@cock.li>
Date: Wed, 11 Sep 2019 09:12:22 +0000
Subject: [PATCH 27/48] Fixed a typo in create_archive_and_cache

---
 lib/pleroma/web/emoji_api/emoji_api_controller.ex | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lib/pleroma/web/emoji_api/emoji_api_controller.ex b/lib/pleroma/web/emoji_api/emoji_api_controller.ex
index 499802fa5..51620a3eb 100644
--- a/lib/pleroma/web/emoji_api/emoji_api_controller.ex
+++ b/lib/pleroma/web/emoji_api/emoji_api_controller.ex
@@ -94,7 +94,7 @@ defp create_archive_and_cache(name, pack, pack_dir, md5) do
       ttl: cache_ms
     )
 
-    Logger.debug("Create an archive for the '#{name}' emoji pack, \
+    Logger.debug("Created an archive for the '#{name}' emoji pack, \
 keeping it in cache for #{div(cache_ms, 1000)}s")
 
     zip_result

From f251225caeede08869b472886337afea0cd47d51 Mon Sep 17 00:00:00 2001
From: vaartis <vaartis@cock.li>
Date: Wed, 11 Sep 2019 15:32:54 +0000
Subject: [PATCH 28/48] Apply suggestions to emoji_api_controller.ex

---
 .../web/emoji_api/emoji_api_controller.ex     | 201 +++++++++---------
 1 file changed, 95 insertions(+), 106 deletions(-)

diff --git a/lib/pleroma/web/emoji_api/emoji_api_controller.ex b/lib/pleroma/web/emoji_api/emoji_api_controller.ex
index 51620a3eb..0c3da6740 100644
--- a/lib/pleroma/web/emoji_api/emoji_api_controller.ex
+++ b/lib/pleroma/web/emoji_api/emoji_api_controller.ex
@@ -153,31 +153,32 @@ def download_shared(conn, %{"name" => name}) do
   from that instance, otherwise it will be downloaded from the fallback source, if there is one.
   """
   def download_from(conn, %{"instance_address" => address, "pack_name" => name} = data) do
-    list_uri = "#{address}/api/pleroma/emoji/packs/list"
-
-    list = Tesla.get!(list_uri).body |> Jason.decode!()
-    full_pack = list[name]
+    full_pack =
+      "#{address}/api/pleroma/emoji/packs/list"
+      |> Tesla.get!()
+      |> Map.get(:body)
+      |> Jason.decode!()
+      |> Map.get(name)
     pfiles = full_pack["files"]
-    pack = full_pack["pack"]
 
     pack_info_res =
-      cond do
-        pack["share-files"] && pack["can-download"] ->
+      case full_pack["pack"] do
+        %{"share-files" => true, "can-download" => true, "download-sha256" => sha} ->
           {:ok,
            %{
-             sha: pack["download-sha256"],
+             sha: sha,
              uri: "#{address}/api/pleroma/emoji/packs/download_shared/#{name}"
            }}
 
-        pack["fallback-src"] ->
+        %{"fallback-src" => src, "fallback-src-sha256" => sha} when is_binary(src) ->
           {:ok,
            %{
-             sha: pack["fallback-src-sha256"],
-             uri: pack["fallback-src"],
+             sha: sha,
+             uri: src,
              fallback: true
            }}
 
-        true ->
+        _ ->
           {:error, "The pack was not set as shared and there is no fallback src to download from"}
       end
 
@@ -194,9 +195,9 @@ def download_from(conn, %{"instance_address" => address, "pack_name" => name} =
           File.mkdir_p!(pack_dir)
 
           # Fallback cannot contain a pack.json file
-          files =
-            unless(pinfo[:fallback], do: ['pack.json'], else: []) ++
-              (pfiles |> Enum.map(fn {_, path} -> to_charlist(path) end))
+          files = Enum.map(full_pack["files"], fn {_, path} -> to_charlist(path) end)
+          # Fallback cannot contain a pack.json file
+          files = if pinfo[:fallback], do: files, else: ['pack.json'] ++ files
 
           {:ok, _} = :zip.unzip(emoji_archive, cwd: to_charlist(pack_dir), file_list: files)
 
@@ -226,7 +227,7 @@ def download_from(conn, %{"instance_address" => address, "pack_name" => name} =
   def create(conn, %{"name" => name}) do
     pack_dir = Path.join(@emoji_dir_path, name)
 
-    unless File.exists?(pack_dir) do
+    if not File.exists?(pack_dir) do
       File.mkdir_p!(pack_dir)
 
       pack_file_p = Path.join(pack_dir, "pack.json")
@@ -265,8 +266,7 @@ def delete(conn, %{"name" => name}) do
   `new_data` is the new metadata for the pack, that will replace the old metadata.
   """
   def update_metadata(conn, %{"pack_name" => name, "new_data" => new_data}) do
-    pack_dir = Path.join(@emoji_dir_path, name)
-    pack_file_p = Path.join(pack_dir, "pack.json")
+    pack_file_p = Path.join([@emoji_dir_path, name, "pack.json"])
 
     full_pack = Jason.decode!(File.read!(pack_file_p))
 
@@ -275,47 +275,42 @@ def update_metadata(conn, %{"pack_name" => name, "new_data" => new_data}) do
       not is_nil(new_data["fallback-src"]) and
         new_data["fallback-src"] != full_pack["pack"]["fallback-src"]
 
-    new_data =
-      if should_update_fb_sha do
-        pack_arch = Tesla.get!(new_data["fallback-src"]).body
+    with {_, true} <- {:should_update?, should_update_fb_sha},
+         %{body: pack_arch} <- Tesla.get!(new_data["fallback-src"]),
+         {:ok, flist} <- :zip.unzip(pack_arch, [:memory]),
+         {_, true} <- {:has_all_files?, has_all_files?(full_pack, flist)} do
+      fallback_sha = :crypto.hash(:sha256, pack_arch) |> Base.encode16()
 
-        {:ok, flist} = :zip.unzip(pack_arch, [:memory])
+      new_data = Map.put(new_data, "fallback-src-sha256", fallback_sha)
+      update_metadata_and_send(conn, full_pack, new_data, pack_file_p)
+    else
+      {:should_update?, _} ->
+        update_metadata_and_send(conn, full_pack, new_data, pack_file_p)
 
-        # Check if all files from the pack.json are in the archive
-        has_all_files =
-          Enum.all?(full_pack["files"], fn {_, from_manifest} ->
-            Enum.find(flist, fn {from_archive, _} ->
-              to_string(from_archive) == from_manifest
-            end)
-          end)
-
-        unless has_all_files do
-          {:error,
-           conn
-           |> put_status(:bad_request)
-           |> text("The fallback archive does not have all files specified in pack.json")}
-        else
-          fallback_sha = :crypto.hash(:sha256, pack_arch) |> Base.encode16()
-
-          {:ok, new_data |> Map.put("fallback-src-sha256", fallback_sha)}
-        end
-      else
-        {:ok, new_data}
-      end
-
-    case new_data do
-      {:ok, new_data} ->
-        full_pack = Map.put(full_pack, "pack", new_data)
-        File.write!(pack_file_p, Jason.encode!(full_pack, pretty: true))
-
-        # Send new data back with fallback sha filled
-        conn |> json(new_data)
-
-      {:error, e} ->
-        e
+      {:has_all_files?, _} ->
+        conn
+        |> put_status(:bad_request)
+        |> text("The fallback archive does not have all files specified in pack.json")
     end
   end
 
+  # Check if all files from the pack.json are in the archive
+  defp has_all_files?(%{"files" => files}, flist) do
+    Enum.all?(files, fn {_, from_manifest} ->
+      Enum.find(flist, fn {from_archive, _} ->
+        to_string(from_archive) == from_manifest
+      end)
+    end)
+  end
+
+  defp update_metadata_and_send(conn, full_pack, new_data, pack_file_p) do
+    full_pack = Map.put(full_pack, "pack", new_data)
+    File.write!(pack_file_p, Jason.encode!(full_pack, pretty: true))
+
+    # Send new data back with fallback sha filled
+    json(conn, new_data)
+  end
+
   @doc """
   Updates a file in a pack.
 
@@ -492,69 +487,63 @@ def update_file(
   assumed to be emojis and stored in the new `pack.json` file.
   """
   def import_from_fs(conn, _params) do
-    case File.ls(@emoji_dir_path) do
+    with {:ok, results} <- File.ls(@emoji_dir_path) do
+      imported_pack_names =
+        results
+        |> Enum.filter(fn file ->
+          dir_path = Path.join(@emoji_dir_path, file)
+          # Find the directories that do NOT have pack.json
+          File.dir?(dir_path) and not File.exists?(Path.join(dir_path, "pack.json"))
+        end)
+        |> Enum.map(&write_pack_json_contents/1)
+
+      json(conn, imported_pack_names)
+    else
       {:error, _} ->
         conn
         |> put_status(:internal_server_error)
         |> text("Error accessing emoji pack directory")
+    end
+  end
 
-      {:ok, results} ->
-        imported_pack_names =
-          results
-          |> Enum.filter(fn file ->
-            dir_path = Path.join(@emoji_dir_path, file)
-            # Find the directories that do NOT have pack.json
-            File.dir?(dir_path) and not File.exists?(Path.join(dir_path, "pack.json"))
-          end)
-          |> Enum.map(fn dir ->
-            dir_path = Path.join(@emoji_dir_path, dir)
-            emoji_txt_path = Path.join(dir_path, "emoji.txt")
+  defp write_pack_json_contents(dir) do
+    dir_path = Path.join(@emoji_dir_path, dir)
+    emoji_txt_path = Path.join(dir_path, "emoji.txt")
 
-            files_for_pack =
-              if File.exists?(emoji_txt_path) do
-                # There's an emoji.txt file, it's likely from a pack installed by the pack manager.
-                # Make a pack.json file from the contents of that emoji.txt fileh
+    files_for_pack = files_for_pack(emoji_txt_path, dir_path)
+    pack_json_contents = Jason.encode!(%{pack: %{}, files: files_for_pack})
 
-                # FIXME: Copy-pasted from Pleroma.Emoji/load_from_file_stream/2
+    File.write!(Path.join(dir_path, "pack.json"), pack_json_contents)
 
-                # Create a map of shortcodes to filenames from emoji.txt
+    dir
+  end
 
-                File.read!(emoji_txt_path)
-                |> String.split("\n")
-                |> Enum.map(&String.trim/1)
-                |> Enum.map(fn line ->
-                  case String.split(line, ~r/,\s*/) do
-                    # This matches both strings with and without tags
-                    # and we don't care about tags here
-                    [name, file | _] ->
-                      {name, file}
+  defp files_for_pack(emoji_txt_path, dir_path) do
+    if File.exists?(emoji_txt_path) do
+      # There's an emoji.txt file, it's likely from a pack installed by the pack manager.
+      # Make a pack.json file from the contents of that emoji.txt fileh
 
-                    _ ->
-                      nil
-                  end
-                end)
-                |> Enum.filter(fn x -> not is_nil(x) end)
-                |> Enum.into(%{})
-              else
-                # If there's no emoji.txt, assume all files
-                # that are of certain extensions from the config are emojis and import them all
-                Pleroma.Emoji.make_shortcode_to_file_map(
-                  dir_path,
-                  Pleroma.Config.get!([:emoji, :pack_extensions])
-                )
-              end
+      # FIXME: Copy-pasted from Pleroma.Emoji/load_from_file_stream/2
 
-            pack_json_contents = Jason.encode!(%{pack: %{}, files: files_for_pack})
-
-            File.write!(
-              Path.join(dir_path, "pack.json"),
-              pack_json_contents
-            )
-
-            dir
-          end)
-
-        conn |> json(imported_pack_names)
+      # Create a map of shortcodes to filenames from emoji.txt
+      File.read!(emoji_txt_path)
+      |> String.split("\n")
+      |> Enum.map(&String.trim/1)
+      |> Enum.map(fn line ->
+        case String.split(line, ~r/,\s*/) do
+          # This matches both strings with and without tags
+          # and we don't care about tags here
+          [name, file | _] -> {name, file}
+          _ -> nil
+        end
+      end)
+      |> Enum.filter(fn x -> not is_nil(x) end)
+      |> Enum.into(%{})
+    else
+      # If there's no emoji.txt, assume all files
+      # that are of certain extensions from the config are emojis and import them all
+      pack_extensions = Pleroma.Config.get!([:emoji, :pack_extensions])
+      Pleroma.Emoji.make_shortcode_to_file_map(dir_path, pack_extensions)
     end
   end
 end

From b8a214b0ab264a64ca287e40e99acd401810ef58 Mon Sep 17 00:00:00 2001
From: vaartis <vaartis@cock.li>
Date: Wed, 11 Sep 2019 15:48:51 +0000
Subject: [PATCH 29/48] Split list_packs

---
 .../web/emoji_api/emoji_api_controller.ex     | 75 ++++++++++---------
 1 file changed, 39 insertions(+), 36 deletions(-)

diff --git a/lib/pleroma/web/emoji_api/emoji_api_controller.ex b/lib/pleroma/web/emoji_api/emoji_api_controller.ex
index 0c3da6740..22619f4d7 100644
--- a/lib/pleroma/web/emoji_api/emoji_api_controller.ex
+++ b/lib/pleroma/web/emoji_api/emoji_api_controller.ex
@@ -23,47 +23,49 @@ def reload(conn, _params) do
   a map of "pack directory name" to pack.json contents.
   """
   def list_packs(conn, _params) do
-    pack_infos =
-      case File.ls(@emoji_dir_path) do
-        {:error, _} ->
-          %{}
+    with {:ok, results} <- File.ls(@emoji_dir_path) do
+      pack_infos =
+        results
+        |> Enum.filter(&has_pack_json?/1)
+        |> Enum.map(&load_pack/1)
+        # Check if all the files are in place and can be sent
+        |> Enum.map(&validate_pack/1)
+        # Transform into a map of pack-name => pack-data
+        |> Enum.into(%{})
 
-        {:ok, results} ->
-          results
-          |> Enum.filter(fn file ->
-            dir_path = Path.join(@emoji_dir_path, file)
-            # Filter to only use the pack.json packs
-            File.dir?(dir_path) and File.exists?(Path.join(dir_path, "pack.json"))
-          end)
-          |> Enum.map(fn pack_name ->
-            pack_path = Path.join(@emoji_dir_path, pack_name)
-            pack_file = Path.join(pack_path, "pack.json")
+      json(conn, pack_infos)
+    end
+  end
 
-            {pack_name, Jason.decode!(File.read!(pack_file))}
-          end)
-          # Transform into a map of pack-name => pack-data
-          # Check if all the files are in place and can be sent
-          |> Enum.map(fn {name, pack} ->
-            pack_path = Path.join(@emoji_dir_path, name)
+  defp has_pack_json?(file) do
+    dir_path = Path.join(@emoji_dir_path, file)
+    # Filter to only use the pack.json packs
+    File.dir?(dir_path) and File.exists?(Path.join(dir_path, "pack.json"))
+  end
 
-            if can_download?(pack, pack_path) do
-              archive_for_sha = make_archive(name, pack, pack_path)
-              archive_sha = :crypto.hash(:sha256, archive_for_sha) |> Base.encode16()
+  defp load_pack(pack_name) do
+    pack_path = Path.join(@emoji_dir_path, pack_name)
+    pack_file = Path.join(pack_path, "pack.json")
 
-              {name,
-               pack
-               |> put_in(["pack", "can-download"], true)
-               |> put_in(["pack", "download-sha256"], archive_sha)}
-            else
-              {name,
-               pack
-               |> put_in(["pack", "can-download"], false)}
-            end
-          end)
-          |> Enum.into(%{})
-      end
+    {pack_name, Jason.decode!(File.read!(pack_file))}
+  end
 
-    conn |> json(pack_infos)
+  defp validate_pack({name, pack}) do
+    pack_path = Path.join(@emoji_dir_path, name)
+
+    if can_download?(pack, pack_path) do
+      archive_for_sha = make_archive(name, pack, pack_path)
+      archive_sha = :crypto.hash(:sha256, archive_for_sha) |> Base.encode16()
+
+      pack =
+        pack
+        |> put_in(["pack", "can-download"], true)
+        |> put_in(["pack", "download-sha256"], archive_sha)
+
+      {name, pack}
+    else
+      {name, put_in(pack, ["pack", "can-download"], false)}
+    end
   end
 
   defp can_download?(pack, pack_path) do
@@ -159,6 +161,7 @@ def download_from(conn, %{"instance_address" => address, "pack_name" => name} =
       |> Map.get(:body)
       |> Jason.decode!()
       |> Map.get(name)
+
     pfiles = full_pack["files"]
 
     pack_info_res =

From 8790365fef9d5f76b7ac1c94933e2ee218e76285 Mon Sep 17 00:00:00 2001
From: Ekaterina Vaartis <vaartis@cock.li>
Date: Wed, 11 Sep 2019 18:52:21 +0300
Subject: [PATCH 30/48] Remove unused variable

---
 lib/pleroma/web/emoji_api/emoji_api_controller.ex | 2 --
 1 file changed, 2 deletions(-)

diff --git a/lib/pleroma/web/emoji_api/emoji_api_controller.ex b/lib/pleroma/web/emoji_api/emoji_api_controller.ex
index 22619f4d7..8ef6ae71f 100644
--- a/lib/pleroma/web/emoji_api/emoji_api_controller.ex
+++ b/lib/pleroma/web/emoji_api/emoji_api_controller.ex
@@ -162,8 +162,6 @@ def download_from(conn, %{"instance_address" => address, "pack_name" => name} =
       |> Jason.decode!()
       |> Map.get(name)
 
-    pfiles = full_pack["files"]
-
     pack_info_res =
       case full_pack["pack"] do
         %{"share-files" => true, "can-download" => true, "download-sha256" => sha} ->

From 8f509e6d1ee8955fc430d1f4ed7929ba0d91177c Mon Sep 17 00:00:00 2001
From: Ekaterina Vaartis <vaartis@cock.li>
Date: Wed, 11 Sep 2019 18:59:31 +0300
Subject: [PATCH 31/48] Use with w/ pack_info_res

---
 .../web/emoji_api/emoji_api_controller.ex     | 52 ++++++++-----------
 1 file changed, 23 insertions(+), 29 deletions(-)

diff --git a/lib/pleroma/web/emoji_api/emoji_api_controller.ex b/lib/pleroma/web/emoji_api/emoji_api_controller.ex
index 8ef6ae71f..9e0ff0b28 100644
--- a/lib/pleroma/web/emoji_api/emoji_api_controller.ex
+++ b/lib/pleroma/web/emoji_api/emoji_api_controller.ex
@@ -183,42 +183,36 @@ def download_from(conn, %{"instance_address" => address, "pack_name" => name} =
           {:error, "The pack was not set as shared and there is no fallback src to download from"}
       end
 
-    case pack_info_res do
-      {:ok, %{sha: sha, uri: uri} = pinfo} ->
-        sha = Base.decode16!(sha)
-        emoji_archive = Tesla.get!(uri).body
+    with {:ok, %{sha: sha, uri: uri} = pinfo} <- pack_info_res,
+         %{body: emoji_archive} <- Tesla.get!(uri),
+         {_, true} <- {:sha, Base.decode16!(sha) == :crypto.hash(:sha256, emoji_archive)} do
+      local_name = data["as"] || name
+      pack_dir = Path.join(@emoji_dir_path, local_name)
+      File.mkdir_p!(pack_dir)
 
-        got_sha = :crypto.hash(:sha256, emoji_archive)
+      files = Enum.map(full_pack["files"], fn {_, path} -> to_charlist(path) end)
+      # Fallback cannot contain a pack.json file
+      files = if pinfo[:fallback], do: files, else: ['pack.json'] ++ files
 
-        if got_sha == sha do
-          local_name = data["as"] || name
-          pack_dir = Path.join(@emoji_dir_path, local_name)
-          File.mkdir_p!(pack_dir)
+      {:ok, _} = :zip.unzip(emoji_archive, cwd: to_charlist(pack_dir), file_list: files)
 
-          # Fallback cannot contain a pack.json file
-          files = Enum.map(full_pack["files"], fn {_, path} -> to_charlist(path) end)
-          # Fallback cannot contain a pack.json file
-          files = if pinfo[:fallback], do: files, else: ['pack.json'] ++ files
+      # Fallback can't contain a pack.json file, since that would cause the fallback-src-sha256
+      # in it to depend on itself
+      if pinfo[:fallback] do
+        pack_file_path = Path.join(pack_dir, "pack.json")
 
-          {:ok, _} = :zip.unzip(emoji_archive, cwd: to_charlist(pack_dir), file_list: files)
-
-          # Fallback can't contain a pack.json file, since that would cause the fallback-src-sha256
-          # in it to depend on itself
-          if pinfo[:fallback] do
-            pack_file_path = Path.join(pack_dir, "pack.json")
-
-            File.write!(pack_file_path, Jason.encode!(full_pack, pretty: true))
-          end
-
-          conn |> text("ok")
-        else
-          conn
-          |> put_status(:internal_server_error)
-          |> text("SHA256 for the pack doesn't match the one sent by the server")
-        end
+        File.write!(pack_file_path, Jason.encode!(full_pack, pretty: true))
+      end
 
+      text(conn, "ok")
+    else
       {:error, e} ->
         conn |> put_status(:internal_server_error) |> text(e)
+
+      {:sha, _} ->
+        conn
+        |> put_status(:internal_server_error)
+        |> text("SHA256 for the pack doesn't match the one sent by the server")
     end
   end
 

From cb125ffaf7f744e60fc134ef6b7b847d3838922a Mon Sep 17 00:00:00 2001
From: vaartis <vaartis@cock.li>
Date: Wed, 11 Sep 2019 16:00:48 +0000
Subject: [PATCH 32/48] Apply suggestion to
 lib/pleroma/web/emoji_api/emoji_api_controller.ex

---
 .../web/emoji_api/emoji_api_controller.ex     | 34 ++++++++-----------
 1 file changed, 15 insertions(+), 19 deletions(-)

diff --git a/lib/pleroma/web/emoji_api/emoji_api_controller.ex b/lib/pleroma/web/emoji_api/emoji_api_controller.ex
index 9e0ff0b28..28eaf5ae3 100644
--- a/lib/pleroma/web/emoji_api/emoji_api_controller.ex
+++ b/lib/pleroma/web/emoji_api/emoji_api_controller.ex
@@ -124,26 +124,22 @@ def download_shared(conn, %{"name" => name}) do
     pack_dir = Path.join(@emoji_dir_path, name)
     pack_file = Path.join(pack_dir, "pack.json")
 
-    if File.exists?(pack_file) do
-      pack = Jason.decode!(File.read!(pack_file))
-
-      if can_download?(pack, pack_dir) do
-        zip_result = make_archive(name, pack, pack_dir)
-
-        conn
-        |> send_download({:binary, zip_result}, filename: "#{name}.zip")
-      else
-        {:error,
-         conn
-         |> put_status(:forbidden)
-         |> text("Pack #{name} cannot be downloaded from this instance, either pack sharing\
-           was disabled for this pack or some files are missing")}
-      end
+    with {_, true} <- {:exists?, File.exists?(pack_file)},
+         pack = Jason.decode!(File.read!(pack_file)),
+         {_, true} <- {:can_download?, can_download?(pack, pack_dir)} do
+      zip_result = make_archive(name, pack, pack_dir)
+      send_download(conn, {:binary, zip_result}, filename: "#{name}.zip")
     else
-      {:error,
-       conn
-       |> put_status(:not_found)
-       |> text("Pack #{name} does not exist")}
+      {:can_download?, _} ->
+        conn
+        |> put_status(:forbidden)
+        |> text("Pack #{name} cannot be downloaded from this instance, either pack sharing\
+           was disabled for this pack or some files are missing")
+
+      {:exists?, _} ->
+        conn
+        |> put_status(:not_found)
+        |> text("Pack #{name} does not exist")
     end
   end
 

From f24731788ef9dcbeb29c9dc5db9270a5787caff6 Mon Sep 17 00:00:00 2001
From: Ekaterina Vaartis <vaartis@cock.li>
Date: Wed, 11 Sep 2019 19:01:21 +0300
Subject: [PATCH 33/48] Move emoji pack list from /list to /

---
 lib/pleroma/web/router.ex | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lib/pleroma/web/router.ex b/lib/pleroma/web/router.ex
index 1252048f0..17f7406fd 100644
--- a/lib/pleroma/web/router.ex
+++ b/lib/pleroma/web/router.ex
@@ -229,7 +229,7 @@ defmodule Pleroma.Web.Router do
 
     scope "/packs" do
       # Pack info / downloading
-      get("/list", EmojiAPIController, :list_packs)
+      get("/", EmojiAPIController, :list_packs)
       get("/download_shared/:name", EmojiAPIController, :download_shared)
     end
   end

From 7c784128fd8016e133c59e9c5076fa2d77a9bdee Mon Sep 17 00:00:00 2001
From: Ekaterina Vaartis <vaartis@cock.li>
Date: Wed, 11 Sep 2019 19:39:47 +0300
Subject: [PATCH 34/48] Change emoji api responses to JSON

---
 .../web/emoji_api/emoji_api_controller.ex     | 316 ++++++++++--------
 test/web/emoji_api_controller_test.exs        |  36 +-
 2 files changed, 186 insertions(+), 166 deletions(-)

diff --git a/lib/pleroma/web/emoji_api/emoji_api_controller.ex b/lib/pleroma/web/emoji_api/emoji_api_controller.ex
index 28eaf5ae3..1c5b7c687 100644
--- a/lib/pleroma/web/emoji_api/emoji_api_controller.ex
+++ b/lib/pleroma/web/emoji_api/emoji_api_controller.ex
@@ -6,7 +6,7 @@ defmodule Pleroma.Web.EmojiAPI.EmojiAPIController do
   def reload(conn, _params) do
     Pleroma.Emoji.reload()
 
-    conn |> text("ok")
+    conn |> json("ok")
   end
 
   @emoji_dir_path Path.join(
@@ -133,13 +133,15 @@ def download_shared(conn, %{"name" => name}) do
       {:can_download?, _} ->
         conn
         |> put_status(:forbidden)
-        |> text("Pack #{name} cannot be downloaded from this instance, either pack sharing\
-           was disabled for this pack or some files are missing")
+        |> json(%{
+          error: "Pack #{name} cannot be downloaded from this instance, either pack sharing\
+           was disabled for this pack or some files are missing"
+        })
 
       {:exists?, _} ->
         conn
         |> put_status(:not_found)
-        |> text("Pack #{name} does not exist")
+        |> json(%{error: "Pack #{name} does not exist"})
     end
   end
 
@@ -200,15 +202,15 @@ def download_from(conn, %{"instance_address" => address, "pack_name" => name} =
         File.write!(pack_file_path, Jason.encode!(full_pack, pretty: true))
       end
 
-      text(conn, "ok")
+      json(conn, "ok")
     else
       {:error, e} ->
-        conn |> put_status(:internal_server_error) |> text(e)
+        conn |> put_status(:internal_server_error) |> json(%{error: e})
 
       {:sha, _} ->
         conn
         |> put_status(:internal_server_error)
-        |> text("SHA256 for the pack doesn't match the one sent by the server")
+        |> json(%{error: "SHA256 for the pack doesn't match the one sent by the server"})
     end
   end
 
@@ -228,11 +230,11 @@ def create(conn, %{"name" => name}) do
         Jason.encode!(%{pack: %{}, files: %{}})
       )
 
-      conn |> text("ok")
+      conn |> json("ok")
     else
       conn
       |> put_status(:conflict)
-      |> text("A pack named \"#{name}\" already exists")
+      |> json(%{error: "A pack named \"#{name}\" already exists"})
     end
   end
 
@@ -244,10 +246,12 @@ def delete(conn, %{"name" => name}) do
 
     case File.rm_rf(pack_dir) do
       {:ok, _} ->
-        conn |> text("ok")
+        conn |> json("ok")
 
       {:error, _} ->
-        conn |> put_status(:internal_server_error) |> text("Couldn't delete the pack #{name}")
+        conn
+        |> put_status(:internal_server_error)
+        |> json(%{error: "Couldn't delete the pack #{name}"})
     end
   end
 
@@ -281,7 +285,7 @@ def update_metadata(conn, %{"pack_name" => name, "new_data" => new_data}) do
       {:has_all_files?, _} ->
         conn
         |> put_status(:bad_request)
-        |> text("The fallback archive does not have all files specified in pack.json")
+        |> json(%{error: "The fallback archive does not have all files specified in pack.json"})
     end
   end
 
@@ -302,6 +306,25 @@ defp update_metadata_and_send(conn, full_pack, new_data, pack_file_p) do
     json(conn, new_data)
   end
 
+  defp get_filename(%{"filename" => filename}), do: filename
+
+  defp get_filename(%{"file" => file}) do
+    case file do
+      %Plug.Upload{filename: filename} -> filename
+      url when is_binary(url) -> Path.basename(url)
+    end
+  end
+
+  defp empty?(str), do: String.trim(str) == ""
+
+  defp update_file_and_send(conn, updated_full_pack, pack_file_p) do
+    # Write the emoji pack file
+    File.write!(pack_file_p, Jason.encode!(updated_full_pack, pretty: true))
+
+    # Return the modified file list
+    json(conn, updated_full_pack["files"])
+  end
+
   @doc """
   Updates a file in a pack.
 
@@ -316,157 +339,154 @@ defp update_metadata_and_send(conn, full_pack, new_data, pack_file_p) do
     (from the current filename to `new_filename`)
   - `remove` removes the emoji named `shortcode` and it's associated file
   """
+
+  # Add
   def update_file(
         conn,
-        %{"pack_name" => pack_name, "action" => action, "shortcode" => shortcode} = params
+        %{"pack_name" => pack_name, "action" => "add", "shortcode" => shortcode} = params
       ) do
     pack_dir = Path.join(@emoji_dir_path, pack_name)
     pack_file_p = Path.join(pack_dir, "pack.json")
 
     full_pack = Jason.decode!(File.read!(pack_file_p))
 
-    res =
-      case action do
-        "add" ->
-          unless Map.has_key?(full_pack["files"], shortcode) do
-            filename =
-              if Map.has_key?(params, "filename") do
-                params["filename"]
-              else
-                case params["file"] do
-                  %Plug.Upload{filename: filename} -> filename
-                  url when is_binary(url) -> Path.basename(url)
-                end
-              end
+    with {_, false} <- {:has_shortcode, Map.has_key?(full_pack["files"], shortcode)},
+         filename <- get_filename(params),
+         false <- empty?(shortcode),
+         false <- empty?(filename) do
+      file_path = Path.join(pack_dir, filename)
 
-            unless String.trim(shortcode) |> String.length() == 0 or
-                     String.trim(filename) |> String.length() == 0 do
-              file_path = Path.join(pack_dir, filename)
-
-              # If the name contains directories, create them
-              if String.contains?(file_path, "/") do
-                File.mkdir_p!(Path.dirname(file_path))
-              end
-
-              case params["file"] do
-                %Plug.Upload{path: upload_path} ->
-                  # Copy the uploaded file from the temporary directory
-                  File.copy!(upload_path, file_path)
-
-                url when is_binary(url) ->
-                  # Download and write the file
-                  file_contents = Tesla.get!(url).body
-                  File.write!(file_path, file_contents)
-              end
-
-              updated_full_pack = put_in(full_pack, ["files", shortcode], filename)
-
-              {:ok, updated_full_pack}
-            else
-              {:error,
-               conn
-               |> put_status(:bad_request)
-               |> text("shortcode or filename cannot be empty")}
-            end
-          else
-            {:error,
-             conn
-             |> put_status(:conflict)
-             |> text("An emoji with the \"#{shortcode}\" shortcode already exists")}
-          end
-
-        "remove" ->
-          if Map.has_key?(full_pack["files"], shortcode) do
-            {emoji_file_path, updated_full_pack} = pop_in(full_pack, ["files", shortcode])
-
-            emoji_file_path = Path.join(pack_dir, emoji_file_path)
-
-            # Delete the emoji file
-            File.rm!(emoji_file_path)
-
-            # If the old directory has no more files, remove it
-            if String.contains?(emoji_file_path, "/") do
-              dir = Path.dirname(emoji_file_path)
-
-              if Enum.empty?(File.ls!(dir)) do
-                File.rmdir!(dir)
-              end
-            end
-
-            {:ok, updated_full_pack}
-          else
-            {:error,
-             conn |> put_status(:bad_request) |> text("Emoji \"#{shortcode}\" does not exist")}
-          end
-
-        "update" ->
-          if Map.has_key?(full_pack["files"], shortcode) do
-            with %{"new_shortcode" => new_shortcode, "new_filename" => new_filename} <- params do
-              unless String.trim(new_shortcode) |> String.length() == 0 or
-                       String.trim(new_filename) |> String.length() == 0 do
-                # First, remove the old shortcode, saving the old path
-                {old_emoji_file_path, updated_full_pack} = pop_in(full_pack, ["files", shortcode])
-                old_emoji_file_path = Path.join(pack_dir, old_emoji_file_path)
-                new_emoji_file_path = Path.join(pack_dir, new_filename)
-
-                # If the name contains directories, create them
-                if String.contains?(new_emoji_file_path, "/") do
-                  File.mkdir_p!(Path.dirname(new_emoji_file_path))
-                end
-
-                # Move/Rename the old filename to a new filename
-                # These are probably on the same filesystem, so just rename should work
-                :ok = File.rename(old_emoji_file_path, new_emoji_file_path)
-
-                # If the old directory has no more files, remove it
-                if String.contains?(old_emoji_file_path, "/") do
-                  dir = Path.dirname(old_emoji_file_path)
-
-                  if Enum.empty?(File.ls!(dir)) do
-                    File.rmdir!(dir)
-                  end
-                end
-
-                # Then, put in the new shortcode with the new path
-                updated_full_pack =
-                  put_in(updated_full_pack, ["files", new_shortcode], new_filename)
-
-                {:ok, updated_full_pack}
-              else
-                {:error,
-                 conn
-                 |> put_status(:bad_request)
-                 |> text("new_shortcode or new_filename cannot be empty")}
-              end
-            else
-              _ ->
-                {:error,
-                 conn
-                 |> put_status(:bad_request)
-                 |> text("new_shortcode or new_file were not specified")}
-            end
-          else
-            {:error,
-             conn |> put_status(:bad_request) |> text("Emoji \"#{shortcode}\" does not exist")}
-          end
-
-        _ ->
-          {:error, conn |> put_status(:bad_request) |> text("Unknown action: #{action}")}
+      # If the name contains directories, create them
+      if String.contains?(file_path, "/") do
+        File.mkdir_p!(Path.dirname(file_path))
       end
 
-    case res do
-      {:ok, updated_full_pack} ->
-        # Write the emoji pack file
-        File.write!(pack_file_p, Jason.encode!(updated_full_pack, pretty: true))
+      case params["file"] do
+        %Plug.Upload{path: upload_path} ->
+          # Copy the uploaded file from the temporary directory
+          File.copy!(upload_path, file_path)
 
-        # Return the modified file list
-        conn |> json(updated_full_pack["files"])
+        url when is_binary(url) ->
+          # Download and write the file
+          file_contents = Tesla.get!(url).body
+          File.write!(file_path, file_contents)
+      end
 
-      {:error, e} ->
-        e
+      updated_full_pack = put_in(full_pack, ["files", shortcode], filename)
+      update_file_and_send(conn, updated_full_pack, pack_file_p)
+    else
+      {:has_shortcode, _} ->
+        conn
+        |> put_status(:conflict)
+        |> json(%{error: "An emoji with the \"#{shortcode}\" shortcode already exists"})
+
+      true ->
+        conn
+        |> put_status(:bad_request)
+        |> json(%{error: "shortcode or filename cannot be empty"})
     end
   end
 
+  # Remove
+  def update_file(conn, %{
+        "pack_name" => pack_name,
+        "action" => "remove",
+        "shortcode" => shortcode
+      }) do
+    pack_dir = Path.join(@emoji_dir_path, pack_name)
+    pack_file_p = Path.join(pack_dir, "pack.json")
+
+    full_pack = Jason.decode!(File.read!(pack_file_p))
+
+    if Map.has_key?(full_pack["files"], shortcode) do
+      {emoji_file_path, updated_full_pack} = pop_in(full_pack, ["files", shortcode])
+
+      emoji_file_path = Path.join(pack_dir, emoji_file_path)
+
+      # Delete the emoji file
+      File.rm!(emoji_file_path)
+
+      # If the old directory has no more files, remove it
+      if String.contains?(emoji_file_path, "/") do
+        dir = Path.dirname(emoji_file_path)
+
+        if Enum.empty?(File.ls!(dir)) do
+          File.rmdir!(dir)
+        end
+      end
+
+      update_file_and_send(conn, updated_full_pack, pack_file_p)
+    else
+      conn
+      |> put_status(:bad_request)
+      |> json(%{error: "Emoji \"#{shortcode}\" does not exist"})
+    end
+  end
+
+  # Update
+  def update_file(
+        conn,
+        %{"pack_name" => pack_name, "action" => "update", "shortcode" => shortcode} = params
+      ) do
+    pack_dir = Path.join(@emoji_dir_path, pack_name)
+    pack_file_p = Path.join(pack_dir, "pack.json")
+
+    full_pack = Jason.decode!(File.read!(pack_file_p))
+
+    with {_, true} <- {:has_shortcode, Map.has_key?(full_pack["files"], shortcode)},
+         %{"new_shortcode" => new_shortcode, "new_filename" => new_filename} <- params,
+         false <- empty?(new_shortcode),
+         false <- empty?(new_filename) do
+      # First, remove the old shortcode, saving the old path
+      {old_emoji_file_path, updated_full_pack} = pop_in(full_pack, ["files", shortcode])
+      old_emoji_file_path = Path.join(pack_dir, old_emoji_file_path)
+      new_emoji_file_path = Path.join(pack_dir, new_filename)
+
+      # If the name contains directories, create them
+      if String.contains?(new_emoji_file_path, "/") do
+        File.mkdir_p!(Path.dirname(new_emoji_file_path))
+      end
+
+      # Move/Rename the old filename to a new filename
+      # These are probably on the same filesystem, so just rename should work
+      :ok = File.rename(old_emoji_file_path, new_emoji_file_path)
+
+      # If the old directory has no more files, remove it
+      if String.contains?(old_emoji_file_path, "/") do
+        dir = Path.dirname(old_emoji_file_path)
+
+        if Enum.empty?(File.ls!(dir)) do
+          File.rmdir!(dir)
+        end
+      end
+
+      # Then, put in the new shortcode with the new path
+      updated_full_pack = put_in(updated_full_pack, ["files", new_shortcode], new_filename)
+      update_file_and_send(conn, updated_full_pack, pack_file_p)
+    else
+      {:has_shortcode, _} ->
+        conn
+        |> put_status(:bad_request)
+        |> json(%{error: "Emoji \"#{shortcode}\" does not exist"})
+
+      true ->
+        conn
+        |> put_status(:bad_request)
+        |> json(%{error: "new_shortcode or new_filename cannot be empty"})
+
+      _ ->
+        conn
+        |> put_status(:bad_request)
+        |> json(%{error: "new_shortcode or new_file were not specified"})
+    end
+  end
+
+  def update_file(conn, %{"action" => action}) do
+    conn
+    |> put_status(:bad_request)
+    |> json(%{error: "Unknown action: #{action}"})
+  end
+
   @doc """
   Imports emoji from the filesystem.
 
@@ -493,7 +513,7 @@ def import_from_fs(conn, _params) do
       {:error, _} ->
         conn
         |> put_status(:internal_server_error)
-        |> text("Error accessing emoji pack directory")
+        |> json(%{error: "Error accessing emoji pack directory"})
     end
   end
 
diff --git a/test/web/emoji_api_controller_test.exs b/test/web/emoji_api_controller_test.exs
index 8b2a942ce..7942a7b01 100644
--- a/test/web/emoji_api_controller_test.exs
+++ b/test/web/emoji_api_controller_test.exs
@@ -101,14 +101,14 @@ test "downloading shared & unshared packs from another instance via download_fro
              }
              |> Jason.encode!()
            )
-           |> text_response(200) == "ok"
+           |> json_response(200) == "ok"
 
     assert File.exists?("#{@emoji_dir_path}/test_pack2/pack.json")
     assert File.exists?("#{@emoji_dir_path}/test_pack2/blank.png")
 
     assert conn
            |> delete(emoji_api_path(conn, :delete, "test_pack2"))
-           |> response(200) == "ok"
+           |> json_response(200) == "ok"
 
     refute File.exists?("#{@emoji_dir_path}/test_pack2")
 
@@ -130,14 +130,14 @@ test "downloading shared & unshared packs from another instance via download_fro
              }
              |> Jason.encode!()
            )
-           |> text_response(200) == "ok"
+           |> json_response(200) == "ok"
 
     assert File.exists?("#{@emoji_dir_path}/test_pack_nonshared2/pack.json")
     assert File.exists?("#{@emoji_dir_path}/test_pack_nonshared2/blank.png")
 
     assert conn
            |> delete(emoji_api_path(conn, :delete, "test_pack_nonshared2"))
-           |> response(200) == "ok"
+           |> json_response(200) == "ok"
 
     refute File.exists?("#{@emoji_dir_path}/test_pack_nonshared2")
   end
@@ -225,15 +225,15 @@ test "when the fallback source doesn't have all the files", ctx do
 
       conn = build_conn()
 
-      assert conn
-             |> assign(:user, ctx[:admin])
-             |> post(
-               emoji_api_path(conn, :update_metadata, "test_pack"),
-               %{
-                 "new_data" => new_data
-               }
-             )
-             |> text_response(:bad_request) =~ "does not have all"
+      assert (conn
+              |> assign(:user, ctx[:admin])
+              |> post(
+                emoji_api_path(conn, :update_metadata, "test_pack"),
+                %{
+                  "new_data" => new_data
+                }
+              )
+              |> json_response(:bad_request))["error"] =~ "does not have all"
     end
   end
 
@@ -267,9 +267,9 @@ test "updating pack files" do
 
     conn = conn |> assign(:user, admin)
 
-    assert conn
-           |> post(emoji_api_path(conn, :update_file, "test_pack"), same_name)
-           |> text_response(:conflict) =~ "already exists"
+    assert (conn
+            |> post(emoji_api_path(conn, :update_file, "test_pack"), same_name)
+            |> json_response(:conflict))["error"] =~ "already exists"
 
     assert conn
            |> post(emoji_api_path(conn, :update_file, "test_pack"), different_name)
@@ -350,7 +350,7 @@ test "creating and deleting a pack" do
                "test_created"
              )
            )
-           |> text_response(200) == "ok"
+           |> json_response(200) == "ok"
 
     assert File.exists?("#{@emoji_dir_path}/test_created/pack.json")
 
@@ -361,7 +361,7 @@ test "creating and deleting a pack" do
 
     assert conn
            |> delete(emoji_api_path(conn, :delete, "test_created"))
-           |> response(200) == "ok"
+           |> json_response(200) == "ok"
 
     refute File.exists?("#{@emoji_dir_path}/test_created/pack.json")
   end

From 3971bf9c5f00d12a0a2048eb3676069d58a9f243 Mon Sep 17 00:00:00 2001
From: Ekaterina Vaartis <vaartis@cock.li>
Date: Wed, 11 Sep 2019 21:43:16 +0300
Subject: [PATCH 35/48] Change :sha to :checksum

---
 lib/pleroma/web/emoji_api/emoji_api_controller.ex | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/lib/pleroma/web/emoji_api/emoji_api_controller.ex b/lib/pleroma/web/emoji_api/emoji_api_controller.ex
index 1c5b7c687..0d4a17c61 100644
--- a/lib/pleroma/web/emoji_api/emoji_api_controller.ex
+++ b/lib/pleroma/web/emoji_api/emoji_api_controller.ex
@@ -183,7 +183,7 @@ def download_from(conn, %{"instance_address" => address, "pack_name" => name} =
 
     with {:ok, %{sha: sha, uri: uri} = pinfo} <- pack_info_res,
          %{body: emoji_archive} <- Tesla.get!(uri),
-         {_, true} <- {:sha, Base.decode16!(sha) == :crypto.hash(:sha256, emoji_archive)} do
+         {_, true} <- {:checksum, Base.decode16!(sha) == :crypto.hash(:sha256, emoji_archive)} do
       local_name = data["as"] || name
       pack_dir = Path.join(@emoji_dir_path, local_name)
       File.mkdir_p!(pack_dir)
@@ -207,7 +207,7 @@ def download_from(conn, %{"instance_address" => address, "pack_name" => name} =
       {:error, e} ->
         conn |> put_status(:internal_server_error) |> json(%{error: e})
 
-      {:sha, _} ->
+      {:checksum, _} ->
         conn
         |> put_status(:internal_server_error)
         |> json(%{error: "SHA256 for the pack doesn't match the one sent by the server"})

From 6cd651a38be898456c06d8fee7fd15f1b406848c Mon Sep 17 00:00:00 2001
From: Ekaterina Vaartis <vaartis@cock.li>
Date: Wed, 11 Sep 2019 21:50:55 +0300
Subject: [PATCH 36/48] Make the emoji controller api more RESTy

---
 lib/pleroma/web/router.ex              | 10 +++++-----
 test/web/emoji_api_controller_test.exs |  2 +-
 2 files changed, 6 insertions(+), 6 deletions(-)

diff --git a/lib/pleroma/web/router.ex b/lib/pleroma/web/router.ex
index 17f7406fd..bae25c60a 100644
--- a/lib/pleroma/web/router.ex
+++ b/lib/pleroma/web/router.ex
@@ -220,17 +220,17 @@ defmodule Pleroma.Web.Router do
 
       post("/import_from_fs", EmojiAPIController, :import_from_fs)
 
-      post("/update_file/:pack_name", EmojiAPIController, :update_file)
-      post("/update_metadata/:pack_name", EmojiAPIController, :update_metadata)
-      post("/create/:name", EmojiAPIController, :create)
-      delete("/delete/:name", EmojiAPIController, :delete)
+      post("/:pack_name/update_file", EmojiAPIController, :update_file)
+      post("/:pack_name/update_metadata", EmojiAPIController, :update_metadata)
+      put("/:name", EmojiAPIController, :create)
+      delete("/:name", EmojiAPIController, :delete)
       post("/download_from", EmojiAPIController, :download_from)
     end
 
     scope "/packs" do
       # Pack info / downloading
       get("/", EmojiAPIController, :list_packs)
-      get("/download_shared/:name", EmojiAPIController, :download_shared)
+      get("/:name/download_shared/", EmojiAPIController, :download_shared)
     end
   end
 
diff --git a/test/web/emoji_api_controller_test.exs b/test/web/emoji_api_controller_test.exs
index 7942a7b01..e92e92f74 100644
--- a/test/web/emoji_api_controller_test.exs
+++ b/test/web/emoji_api_controller_test.exs
@@ -343,7 +343,7 @@ test "creating and deleting a pack" do
 
     assert conn
            |> put_req_header("content-type", "application/json")
-           |> post(
+           |> put(
              emoji_api_path(
                conn,
                :create,

From dd818bdd487149b75295abd351e3dee3e7378dd7 Mon Sep 17 00:00:00 2001
From: Ekaterina Vaartis <vaartis@cock.li>
Date: Wed, 11 Sep 2019 22:39:26 +0300
Subject: [PATCH 37/48] Add documentation for the emoji endpoints

---
 docs/api/pleroma_api.md | 66 +++++++++++++++++++++++++++++++++++++++++
 1 file changed, 66 insertions(+)

diff --git a/docs/api/pleroma_api.md b/docs/api/pleroma_api.md
index 30fac77da..a7e7fbe25 100644
--- a/docs/api/pleroma_api.md
+++ b/docs/api/pleroma_api.md
@@ -365,3 +365,69 @@ The status posting endpoint takes an additional parameter, `in_reply_to_conversa
 * Params:
     * `recipients`: A list of ids of users that should receive posts to this conversation. This will replace the current list of recipients, so submit the full list. The owner of owner of the conversation will always be part of the set of recipients, though.
 * Response: JSON, statuses (200 - healthy, 503 unhealthy)
+
+
+## `POST /api/pleroma/emoji/reload`
+### Reload the instance's custom emoji
+* Method `POST`
+* Authentication: required
+* Params: None
+* Response: JSON, "ok" and 200 status
+
+## `PUT /api/pleroma/emoji/packs/:name`
+### Creates an empty custom emoji pack
+* Method `PUT`
+* Authentication: required
+* Params: None
+* Response: JSON, "ok" and 200 status or 409 if the pack with that name already exists
+
+## `DELETE /api/pleroma/emoji/packs/:name`
+### Delete a custom emoji pack
+* Method `DELETE`
+* Authentication: required
+* Params: None
+* Response: JSON, "ok" and 200 status or 500 if there was an error deleting the pack
+
+## `POST /api/pleroma/emoji/packs/:name/update_file`
+### Update a file in a custom emoji pack
+* Method `POST`
+* Authentication: required
+* Params: 
+    * if the `action` is `add`, adds an emoji named `shortcode` to the pack `pack_name`,
+      that means that the emoji file needs to be uploaded with the request
+      (thus requiring it to be a multipart request) and be named `file`.
+      There can also be an optional `filename` that will be the new emoji file name
+      (if it's not there, the name will be taken from the uploaded file).
+    * if the `action` is `update`, changes emoji shortcode
+      (from `shortcode` to `new_shortcode` or moves the file (from the current filename to `new_filename`)
+    * if the `action` is `remove`, removes the emoji named `shortcode` and it's associated file
+* Response: JSON, updated "files" section of the pack and 200 status, 409 if the trying to use a shortcode
+  that is already taken, 400 if there was an error with the shortcode, filename or file (additional info
+  in the "error" part of the response JSON)
+
+## `POST /api/pleroma/emoji/packs/:name/update_metadata`
+### Updates (replaces) pack metadata
+* Method `POST`
+* Authentication: required
+* Params: 
+  * `new_data`: new metadata to replace the old one
+* Response: JSON, updated "metadata" section of the pack and 200 status or 400 if there was a
+  problem with the new metadata (the error is specified in the "error" part of the response JSON)
+
+## `POST /api/pleroma/emoji/packs/download_from`
+### Requests the instance to download the pack from another instance
+* Method `POST`
+* Authentication: required
+* Params: 
+  * `instance_address`: the address of the instance to download from
+  * `pack_name`: the pack to download from that instance
+* Response: JSON, "ok" and 200 status if the pack was downloaded, or 500 if there were
+  errors downloading the pack
+
+## `GET /api/pleroma/emoji/packs/:name/download_shared`
+### Requests the instance to download the pack from another instance
+* Method `GET`
+* Authentication: not requires
+* Params: None
+* Response: the archive of the pack with a 200 status code, 403 if the pack is not set as shared,
+  404 if the pack does not exist

From 74fb6d864760ccaa18b9a20d148c590254779454 Mon Sep 17 00:00:00 2001
From: Ekaterina Vaartis <vaartis@cock.li>
Date: Wed, 11 Sep 2019 22:43:00 +0300
Subject: [PATCH 38/48] Move EmojiAPIController from EmojiAPI to PleromaAPI

---
 lib/pleroma/web/emoji_api/emoji_api_controller.ex | 2 +-
 lib/pleroma/web/router.ex                         | 2 +-
 test/web/emoji_api_controller_test.exs            | 2 +-
 3 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/lib/pleroma/web/emoji_api/emoji_api_controller.ex b/lib/pleroma/web/emoji_api/emoji_api_controller.ex
index 0d4a17c61..a83f8af57 100644
--- a/lib/pleroma/web/emoji_api/emoji_api_controller.ex
+++ b/lib/pleroma/web/emoji_api/emoji_api_controller.ex
@@ -1,4 +1,4 @@
-defmodule Pleroma.Web.EmojiAPI.EmojiAPIController do
+defmodule Pleroma.Web.PleromaAPI.EmojiAPIController do
   use Pleroma.Web, :controller
 
   require Logger
diff --git a/lib/pleroma/web/router.ex b/lib/pleroma/web/router.ex
index bae25c60a..715e4ba68 100644
--- a/lib/pleroma/web/router.ex
+++ b/lib/pleroma/web/router.ex
@@ -207,7 +207,7 @@ defmodule Pleroma.Web.Router do
     get("/moderation_log", AdminAPIController, :list_log)
   end
 
-  scope "/api/pleroma/emoji", Pleroma.Web.EmojiAPI do
+  scope "/api/pleroma/emoji", Pleroma.Web.PleromaAPI do
     scope [] do
       pipe_through([:admin_api, :oauth_write])
 
diff --git a/test/web/emoji_api_controller_test.exs b/test/web/emoji_api_controller_test.exs
index e92e92f74..38d11cdce 100644
--- a/test/web/emoji_api_controller_test.exs
+++ b/test/web/emoji_api_controller_test.exs
@@ -1,4 +1,4 @@
-defmodule Pleroma.Web.EmojiAPI.EmojiAPIControllerTest do
+defmodule Pleroma.Web.PleromaAPI.EmojiAPIControllerTest do
   use Pleroma.Web.ConnCase
 
   import Tesla.Mock

From 36f2275dc9f6c58163e4e07f8ace9d75e96033c7 Mon Sep 17 00:00:00 2001
From: Ekaterina Vaartis <vaartis@cock.li>
Date: Wed, 11 Sep 2019 22:58:55 +0300
Subject: [PATCH 39/48] A feature for shareable emoji packs, use it in
 download_from & tests

---
 .../web/emoji_api/emoji_api_controller.ex     | 115 ++++++++++--------
 .../web/nodeinfo/nodeinfo_controller.ex       |   1 +
 test/web/emoji_api_controller_test.exs        |  22 ++++
 3 files changed, 88 insertions(+), 50 deletions(-)

diff --git a/lib/pleroma/web/emoji_api/emoji_api_controller.ex b/lib/pleroma/web/emoji_api/emoji_api_controller.ex
index a83f8af57..36ca2c804 100644
--- a/lib/pleroma/web/emoji_api/emoji_api_controller.ex
+++ b/lib/pleroma/web/emoji_api/emoji_api_controller.ex
@@ -153,64 +153,79 @@ def download_shared(conn, %{"name" => name}) do
   from that instance, otherwise it will be downloaded from the fallback source, if there is one.
   """
   def download_from(conn, %{"instance_address" => address, "pack_name" => name} = data) do
-    full_pack =
-      "#{address}/api/pleroma/emoji/packs/list"
+    shareable_packs_available =
+      "#{address}/nodeinfo/2.1.json"
       |> Tesla.get!()
       |> Map.get(:body)
       |> Jason.decode!()
-      |> Map.get(name)
+      |> Map.get("features")
+      |> Enum.member?("shareable_emoji_packs")
 
-    pack_info_res =
-      case full_pack["pack"] do
-        %{"share-files" => true, "can-download" => true, "download-sha256" => sha} ->
-          {:ok,
-           %{
-             sha: sha,
-             uri: "#{address}/api/pleroma/emoji/packs/download_shared/#{name}"
-           }}
+    if shareable_packs_available do
+      full_pack =
+        "#{address}/api/pleroma/emoji/packs/list"
+        |> Tesla.get!()
+        |> Map.get(:body)
+        |> Jason.decode!()
+        |> Map.get(name)
 
-        %{"fallback-src" => src, "fallback-src-sha256" => sha} when is_binary(src) ->
-          {:ok,
-           %{
-             sha: sha,
-             uri: src,
-             fallback: true
-           }}
+      pack_info_res =
+        case full_pack["pack"] do
+          %{"share-files" => true, "can-download" => true, "download-sha256" => sha} ->
+            {:ok,
+             %{
+               sha: sha,
+               uri: "#{address}/api/pleroma/emoji/packs/download_shared/#{name}"
+             }}
 
-        _ ->
-          {:error, "The pack was not set as shared and there is no fallback src to download from"}
+          %{"fallback-src" => src, "fallback-src-sha256" => sha} when is_binary(src) ->
+            {:ok,
+             %{
+               sha: sha,
+               uri: src,
+               fallback: true
+             }}
+
+          _ ->
+            {:error,
+             "The pack was not set as shared and there is no fallback src to download from"}
+        end
+
+      with {:ok, %{sha: sha, uri: uri} = pinfo} <- pack_info_res,
+           %{body: emoji_archive} <- Tesla.get!(uri),
+           {_, true} <- {:checksum, Base.decode16!(sha) == :crypto.hash(:sha256, emoji_archive)} do
+        local_name = data["as"] || name
+        pack_dir = Path.join(@emoji_dir_path, local_name)
+        File.mkdir_p!(pack_dir)
+
+        files = Enum.map(full_pack["files"], fn {_, path} -> to_charlist(path) end)
+        # Fallback cannot contain a pack.json file
+        files = if pinfo[:fallback], do: files, else: ['pack.json'] ++ files
+
+        {:ok, _} = :zip.unzip(emoji_archive, cwd: to_charlist(pack_dir), file_list: files)
+
+        # Fallback can't contain a pack.json file, since that would cause the fallback-src-sha256
+        # in it to depend on itself
+        if pinfo[:fallback] do
+          pack_file_path = Path.join(pack_dir, "pack.json")
+
+          File.write!(pack_file_path, Jason.encode!(full_pack, pretty: true))
+        end
+
+        json(conn, "ok")
+      else
+        {:error, e} ->
+          conn |> put_status(:internal_server_error) |> json(%{error: e})
+
+        {:checksum, _} ->
+          conn
+          |> put_status(:internal_server_error)
+          |> json(%{error: "SHA256 for the pack doesn't match the one sent by the server"})
       end
-
-    with {:ok, %{sha: sha, uri: uri} = pinfo} <- pack_info_res,
-         %{body: emoji_archive} <- Tesla.get!(uri),
-         {_, true} <- {:checksum, Base.decode16!(sha) == :crypto.hash(:sha256, emoji_archive)} do
-      local_name = data["as"] || name
-      pack_dir = Path.join(@emoji_dir_path, local_name)
-      File.mkdir_p!(pack_dir)
-
-      files = Enum.map(full_pack["files"], fn {_, path} -> to_charlist(path) end)
-      # Fallback cannot contain a pack.json file
-      files = if pinfo[:fallback], do: files, else: ['pack.json'] ++ files
-
-      {:ok, _} = :zip.unzip(emoji_archive, cwd: to_charlist(pack_dir), file_list: files)
-
-      # Fallback can't contain a pack.json file, since that would cause the fallback-src-sha256
-      # in it to depend on itself
-      if pinfo[:fallback] do
-        pack_file_path = Path.join(pack_dir, "pack.json")
-
-        File.write!(pack_file_path, Jason.encode!(full_pack, pretty: true))
-      end
-
-      json(conn, "ok")
     else
-      {:error, e} ->
-        conn |> put_status(:internal_server_error) |> json(%{error: e})
-
-      {:checksum, _} ->
-        conn
-        |> put_status(:internal_server_error)
-        |> json(%{error: "SHA256 for the pack doesn't match the one sent by the server"})
+      conn
+      |> put_status(:internal_server_error)
+      |> json(%{error: "The requested instance does not support sharing emoji packs"})
     end
   end
 
diff --git a/lib/pleroma/web/nodeinfo/nodeinfo_controller.ex b/lib/pleroma/web/nodeinfo/nodeinfo_controller.ex
index ee14cfd6b..192984242 100644
--- a/lib/pleroma/web/nodeinfo/nodeinfo_controller.ex
+++ b/lib/pleroma/web/nodeinfo/nodeinfo_controller.ex
@@ -57,6 +57,7 @@ def raw_nodeinfo do
         "mastodon_api_streaming",
         "polls",
         "pleroma_explicit_addressing",
+        "shareable_emoji_packs",
         if Config.get([:media_proxy, :enabled]) do
           "media_proxy"
         end,
diff --git a/test/web/emoji_api_controller_test.exs b/test/web/emoji_api_controller_test.exs
index 38d11cdce..1af4d3720 100644
--- a/test/web/emoji_api_controller_test.exs
+++ b/test/web/emoji_api_controller_test.exs
@@ -54,6 +54,12 @@ test "downloading shared & unshared packs from another instance via download_fro
     end)
 
     mock(fn
+      %{method: :get, url: "https://old-instance/nodeinfo/2.1.json"} ->
+        json(%{features: []})
+
+      %{method: :get, url: "https://example.com/nodeinfo/2.1.json"} ->
+        json(%{features: ["shareable_emoji_packs"]})
+
       %{
         method: :get,
         url: "https://example.com/api/pleroma/emoji/packs/list"
@@ -87,6 +93,22 @@ test "downloading shared & unshared packs from another instance via download_fro
 
     conn = build_conn() |> assign(:user, admin)
 
+    assert (conn
+            |> put_req_header("content-type", "application/json")
+            |> post(
+              emoji_api_path(
+                conn,
+                :download_from
+              ),
+              %{
+                instance_address: "https://old-instance",
+                pack_name: "test_pack",
+                as: "test_pack2"
+              }
+              |> Jason.encode!()
+            )
+            |> json_response(500))["error"] =~ "does not support"
+
     assert conn
            |> put_req_header("content-type", "application/json")
            |> post(

From 7680aec17d6690ccf7383354572456c2118a8750 Mon Sep 17 00:00:00 2001
From: Ekaterina Vaartis <vaartis@cock.li>
Date: Thu, 12 Sep 2019 00:00:28 +0300
Subject: [PATCH 40/48] Move emoji api to pleroma api dir

---
 .../web/{emoji_api => pleroma_api}/emoji_api_controller.ex        | 0
 1 file changed, 0 insertions(+), 0 deletions(-)
 rename lib/pleroma/web/{emoji_api => pleroma_api}/emoji_api_controller.ex (100%)

diff --git a/lib/pleroma/web/emoji_api/emoji_api_controller.ex b/lib/pleroma/web/pleroma_api/emoji_api_controller.ex
similarity index 100%
rename from lib/pleroma/web/emoji_api/emoji_api_controller.ex
rename to lib/pleroma/web/pleroma_api/emoji_api_controller.ex

From d51e5e447ee944e77646b15a7aabc0214e99c351 Mon Sep 17 00:00:00 2001
From: Ekaterina Vaartis <vaartis@cock.li>
Date: Thu, 12 Sep 2019 20:38:57 +0300
Subject: [PATCH 41/48] Move emoji reloading to admin api

---
 docs/api/admin_api.md                               | 7 +++++++
 docs/api/pleroma_api.md                             | 8 --------
 lib/pleroma/web/admin_api/admin_api_controller.ex   | 6 ++++++
 lib/pleroma/web/pleroma_api/emoji_api_controller.ex | 6 ------
 lib/pleroma/web/router.ex                           | 8 ++------
 5 files changed, 15 insertions(+), 20 deletions(-)

diff --git a/docs/api/admin_api.md b/docs/api/admin_api.md
index 7637fa0d4..0377ea655 100644
--- a/docs/api/admin_api.md
+++ b/docs/api/admin_api.md
@@ -733,3 +733,10 @@ Compile time settings (need instance reboot):
   }
 ]
 ```
+
+## `POST /api/pleroma/admin/reload_emoji`
+### Reload the instance's custom emoji
+* Method `POST`
+* Authentication: required
+* Params: None
+* Response: JSON, "ok" and 200 status
diff --git a/docs/api/pleroma_api.md b/docs/api/pleroma_api.md
index a7e7fbe25..05a4e6fcc 100644
--- a/docs/api/pleroma_api.md
+++ b/docs/api/pleroma_api.md
@@ -366,14 +366,6 @@ The status posting endpoint takes an additional parameter, `in_reply_to_conversa
     * `recipients`: A list of ids of users that should receive posts to this conversation. This will replace the current list of recipients, so submit the full list. The owner of owner of the conversation will always be part of the set of recipients, though.
 * Response: JSON, statuses (200 - healthy, 503 unhealthy)
 
-
-## `POST /api/pleroma/emoji/reload`
-### Reload the instance's custom emoji
-* Method `POST`
-* Authentication: required
-* Params: None
-* Response: JSON, "ok" and 200 status
-
 ## `PUT /api/pleroma/emoji/packs/:name`
 ### Creates an empty custom emoji pack
 * Method `PUT`
diff --git a/lib/pleroma/web/admin_api/admin_api_controller.ex b/lib/pleroma/web/admin_api/admin_api_controller.ex
index 8a8091daa..4d4e862dd 100644
--- a/lib/pleroma/web/admin_api/admin_api_controller.ex
+++ b/lib/pleroma/web/admin_api/admin_api_controller.ex
@@ -599,6 +599,12 @@ def config_update(conn, %{"configs" => configs}) do
     |> render("index.json", %{configs: updated})
   end
 
+  def reload_emoji(conn, _params) do
+    Pleroma.Emoji.reload()
+
+    conn |> json("ok")
+  end
+
   def errors(conn, {:error, :not_found}) do
     conn
     |> put_status(:not_found)
diff --git a/lib/pleroma/web/pleroma_api/emoji_api_controller.ex b/lib/pleroma/web/pleroma_api/emoji_api_controller.ex
index 36ca2c804..bc1639095 100644
--- a/lib/pleroma/web/pleroma_api/emoji_api_controller.ex
+++ b/lib/pleroma/web/pleroma_api/emoji_api_controller.ex
@@ -3,12 +3,6 @@ defmodule Pleroma.Web.PleromaAPI.EmojiAPIController do
 
   require Logger
 
-  def reload(conn, _params) do
-    Pleroma.Emoji.reload()
-
-    conn |> json("ok")
-  end
-
   @emoji_dir_path Path.join(
                     Pleroma.Config.get!([:instance, :static_dir]),
                     "emoji"
diff --git a/lib/pleroma/web/router.ex b/lib/pleroma/web/router.ex
index 715e4ba68..71ef382c5 100644
--- a/lib/pleroma/web/router.ex
+++ b/lib/pleroma/web/router.ex
@@ -205,15 +205,11 @@ defmodule Pleroma.Web.Router do
     get("/config/migrate_from_db", AdminAPIController, :migrate_from_db)
 
     get("/moderation_log", AdminAPIController, :list_log)
+
+    post("/reload_emoji", AdminAPIController, :reload_emoji)
   end
 
   scope "/api/pleroma/emoji", Pleroma.Web.PleromaAPI do
-    scope [] do
-      pipe_through([:admin_api, :oauth_write])
-
-      post("/reload", EmojiAPIController, :reload)
-    end
-
     scope "/packs" do
       # Modifying packs
       pipe_through([:admin_api, :oauth_write])

From 8aed05ac1518a10fb30532429984e02a05180ec3 Mon Sep 17 00:00:00 2001
From: vaartis <vaartis@cock.li>
Date: Fri, 13 Sep 2019 12:32:23 +0000
Subject: [PATCH 42/48] Apply suggestion to docs/api/pleroma_api.md

---
 docs/api/pleroma_api.md | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/docs/api/pleroma_api.md b/docs/api/pleroma_api.md
index 05a4e6fcc..e76bf0caf 100644
--- a/docs/api/pleroma_api.md
+++ b/docs/api/pleroma_api.md
@@ -417,7 +417,7 @@ The status posting endpoint takes an additional parameter, `in_reply_to_conversa
   errors downloading the pack
 
 ## `GET /api/pleroma/emoji/packs/:name/download_shared`
-### Requests the instance to download the pack from another instance
+### Requests a local pack from the instance
 * Method `GET`
 * Authentication: not requires
 * Params: None

From 43022c347f9001d9cb8de976dd521a1e5f1c1318 Mon Sep 17 00:00:00 2001
From: vaartis <vaartis@cock.li>
Date: Fri, 13 Sep 2019 12:32:40 +0000
Subject: [PATCH 43/48] Apply suggestion to docs/api/pleroma_api.md

---
 docs/api/pleroma_api.md | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/docs/api/pleroma_api.md b/docs/api/pleroma_api.md
index e76bf0caf..faf6e3acd 100644
--- a/docs/api/pleroma_api.md
+++ b/docs/api/pleroma_api.md
@@ -419,7 +419,7 @@ The status posting endpoint takes an additional parameter, `in_reply_to_conversa
 ## `GET /api/pleroma/emoji/packs/:name/download_shared`
 ### Requests a local pack from the instance
 * Method `GET`
-* Authentication: not requires
+* Authentication: not required
 * Params: None
 * Response: the archive of the pack with a 200 status code, 403 if the pack is not set as shared,
   404 if the pack does not exist

From 86795d5ac2604e08654b872927678d3e05a68e85 Mon Sep 17 00:00:00 2001
From: Ekaterina Vaartis <vaartis@cock.li>
Date: Fri, 13 Sep 2019 21:00:28 +0300
Subject: [PATCH 44/48] Document emoji pack listing in the api docs

---
 docs/api/pleroma_api.md | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/docs/api/pleroma_api.md b/docs/api/pleroma_api.md
index faf6e3acd..a469ddfbf 100644
--- a/docs/api/pleroma_api.md
+++ b/docs/api/pleroma_api.md
@@ -366,6 +366,13 @@ The status posting endpoint takes an additional parameter, `in_reply_to_conversa
     * `recipients`: A list of ids of users that should receive posts to this conversation. This will replace the current list of recipients, so submit the full list. The owner of owner of the conversation will always be part of the set of recipients, though.
 * Response: JSON, statuses (200 - healthy, 503 unhealthy)
 
+## `GET /api/pleroma/emoji/packs`
+### Lists the custom emoji packs on the server
+* Method `GET`
+* Authentication: not required
+* Params: None
+* Response: JSON, "ok" and 200 status and the JSON hashmap of "pack name" to "pack contents"
+
 ## `PUT /api/pleroma/emoji/packs/:name`
 ### Creates an empty custom emoji pack
 * Method `PUT`

From a1325d5fd9b540017cbffbb73db85ee9fa9f12d0 Mon Sep 17 00:00:00 2001
From: Ekaterina Vaartis <vaartis@cock.li>
Date: Wed, 18 Sep 2019 18:09:57 +0300
Subject: [PATCH 45/48] Change path from nodeinfo to metadata->features

---
 lib/pleroma/web/pleroma_api/emoji_api_controller.ex | 2 +-
 test/web/emoji_api_controller_test.exs              | 4 ++--
 2 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/lib/pleroma/web/pleroma_api/emoji_api_controller.ex b/lib/pleroma/web/pleroma_api/emoji_api_controller.ex
index bc1639095..391c317e7 100644
--- a/lib/pleroma/web/pleroma_api/emoji_api_controller.ex
+++ b/lib/pleroma/web/pleroma_api/emoji_api_controller.ex
@@ -152,7 +152,7 @@ def download_from(conn, %{"instance_address" => address, "pack_name" => name} =
       |> Tesla.get!()
       |> Map.get(:body)
       |> Jason.decode!()
-      |> Map.get("features")
+      |> get_in(["metadata", "features"])
       |> Enum.member?("shareable_emoji_packs")
 
     if shareable_packs_available do
diff --git a/test/web/emoji_api_controller_test.exs b/test/web/emoji_api_controller_test.exs
index 1af4d3720..297dc092f 100644
--- a/test/web/emoji_api_controller_test.exs
+++ b/test/web/emoji_api_controller_test.exs
@@ -55,10 +55,10 @@ test "downloading shared & unshared packs from another instance via download_fro
 
     mock(fn
       %{method: :get, url: "https://old-instance/nodeinfo/2.1.json"} ->
-        json(%{features: []})
+        json(%{metadata: %{features: []}})
 
       %{method: :get, url: "https://example.com/nodeinfo/2.1.json"} ->
-        json(%{features: ["shareable_emoji_packs"]})
+        json(%{metadata: %{features: ["shareable_emoji_packs"]}})
 
       %{
         method: :get,

From b585134c9092b49e7b5c24e04d6d6315d45dd0a2 Mon Sep 17 00:00:00 2001
From: Ekaterina Vaartis <vaartis@cock.li>
Date: Wed, 18 Sep 2019 19:48:25 +0300
Subject: [PATCH 46/48] Get the nodeinfo address from the well-known

---
 lib/pleroma/web/pleroma_api/emoji_api_controller.ex | 8 +++++++-
 test/web/emoji_api_controller_test.exs              | 6 ++++++
 2 files changed, 13 insertions(+), 1 deletion(-)

diff --git a/lib/pleroma/web/pleroma_api/emoji_api_controller.ex b/lib/pleroma/web/pleroma_api/emoji_api_controller.ex
index 391c317e7..6beca426a 100644
--- a/lib/pleroma/web/pleroma_api/emoji_api_controller.ex
+++ b/lib/pleroma/web/pleroma_api/emoji_api_controller.ex
@@ -148,7 +148,13 @@ def download_shared(conn, %{"name" => name}) do
   """
   def download_from(conn, %{"instance_address" => address, "pack_name" => name} = data) do
     shareable_packs_available =
-      "#{address}/nodeinfo/2.1.json"
+      "#{address}/.well-known/nodeinfo"
+      |> Tesla.get!()
+      |> Map.get(:body)
+      |> Jason.decode!()
+      |> List.last()
+      |> Map.get("href")
+      # Get the actual nodeinfo address and fetch it
       |> Tesla.get!()
       |> Map.get(:body)
       |> Jason.decode!()
diff --git a/test/web/emoji_api_controller_test.exs b/test/web/emoji_api_controller_test.exs
index 297dc092f..c5a553692 100644
--- a/test/web/emoji_api_controller_test.exs
+++ b/test/web/emoji_api_controller_test.exs
@@ -54,9 +54,15 @@ test "downloading shared & unshared packs from another instance via download_fro
     end)
 
     mock(fn
+      %{method: :get, url: "https://old-instance/.well-known/nodeinfo"} ->
+        json([%{href: "https://old-instance/nodeinfo/2.1.json"}])
+
       %{method: :get, url: "https://old-instance/nodeinfo/2.1.json"} ->
         json(%{metadata: %{features: []}})
 
+      %{method: :get, url: "https://example.com/.well-known/nodeinfo"} ->
+        json([%{href: "https://example.com/nodeinfo/2.1.json"}])
+
       %{method: :get, url: "https://example.com/nodeinfo/2.1.json"} ->
         json(%{metadata: %{features: ["shareable_emoji_packs"]}})
 

From 3e972c0456a6f556bd1ee9118116f347d774df61 Mon Sep 17 00:00:00 2001
From: Ekaterina Vaartis <vaartis@cock.li>
Date: Thu, 19 Sep 2019 00:21:16 +0300
Subject: [PATCH 47/48] Add :shared_pack_cache_seconds_per_file to
 description.exs

---
 config/description.exs | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/config/description.exs b/config/description.exs
index 65ea6bf01..5dc8dc364 100644
--- a/config/description.exs
+++ b/config/description.exs
@@ -2256,6 +2256,14 @@
           "Location of the JSON-manifest. This manifest contains information about the emoji-packs you can download." <>
             " Currently only one manifest can be added (no arrays)",
         suggestions: ["https://git.pleroma.social/pleroma/emoji-index/raw/master/index.json"]
+      },
+      %{
+        key: :shared_pack_cache_seconds_per_file,
+        type: :integer,
+        descpiption:
+          "When an emoji pack is shared, the archive is created and cached in memory" <>
+            " for this amount of seconds multiplied by the number of files.",
+        suggestions: [60]
       }
     ]
   },

From 6b3d5ed6db6a3c73eb1f8373ebd670427aa8849d Mon Sep 17 00:00:00 2001
From: rinpatch <rinpatch@sdf.org>
Date: Mon, 23 Sep 2019 21:14:51 +0300
Subject: [PATCH 48/48] Emoji API Controller: Follow phoenix directory
 structure

---
 .../web/pleroma_api/{ => controllers}/emoji_api_controller.ex     | 0
 .../web/pleroma_api/{ => controllers}/pleroma_api_controller.ex   | 0
 test/web/{ => pleroma_api}/emoji_api_controller_test.exs          | 0
 3 files changed, 0 insertions(+), 0 deletions(-)
 rename lib/pleroma/web/pleroma_api/{ => controllers}/emoji_api_controller.ex (100%)
 rename lib/pleroma/web/pleroma_api/{ => controllers}/pleroma_api_controller.ex (100%)
 rename test/web/{ => pleroma_api}/emoji_api_controller_test.exs (100%)

diff --git a/lib/pleroma/web/pleroma_api/emoji_api_controller.ex b/lib/pleroma/web/pleroma_api/controllers/emoji_api_controller.ex
similarity index 100%
rename from lib/pleroma/web/pleroma_api/emoji_api_controller.ex
rename to lib/pleroma/web/pleroma_api/controllers/emoji_api_controller.ex
diff --git a/lib/pleroma/web/pleroma_api/pleroma_api_controller.ex b/lib/pleroma/web/pleroma_api/controllers/pleroma_api_controller.ex
similarity index 100%
rename from lib/pleroma/web/pleroma_api/pleroma_api_controller.ex
rename to lib/pleroma/web/pleroma_api/controllers/pleroma_api_controller.ex
diff --git a/test/web/emoji_api_controller_test.exs b/test/web/pleroma_api/emoji_api_controller_test.exs
similarity index 100%
rename from test/web/emoji_api_controller_test.exs
rename to test/web/pleroma_api/emoji_api_controller_test.exs