167 lines
5.1 KiB
Elixir
167 lines
5.1 KiB
Elixir
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.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.yml")
|
|
|
|
{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
|
|
|> 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.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)])
|
|
|
|
zip_result
|
|
end
|
|
|
|
def download_shared(conn, %{"name" => name}) do
|
|
pack_dir = Path.join(@emoji_dir_path, name)
|
|
pack_yaml = Path.join(pack_dir, "pack.yml")
|
|
|
|
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)
|
|
|
|
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.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.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?(yaml_path) do
|
|
File.write!(yaml_path, RelaxYaml.Encoder.encode(full_pack, []))
|
|
end
|
|
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
|
|
|
|
{:error, e} ->
|
|
conn |> put_status(:internal_server_error) |> text(e)
|
|
end
|
|
end
|
|
end
|