Add MD5 verification for emoji pack source
[akkoma] / lib / mix / tasks / pleroma / emoji.ex
1 # Pleroma: A lightweight social networking server
2 # Copyright © 2017-2018 Pleroma Authors <https://pleroma.social/>
3 # SPDX-License-Identifier: AGPL-3.0-only
4
5 defmodule Mix.Tasks.Pleroma.Emoji do
6 use Mix.Task
7
8 @shortdoc "Manages Pleroma instance"
9 @moduledoc """
10 """
11
12 @default_manifest "https://git.pleroma.social/vaartis/emoji-index/raw/master/index.json"
13
14 defp fetch_manifest(from) do
15 Tesla.get!(from).body |> Poison.decode!()
16 end
17
18 defp parse_global_opts(args) do
19 OptionParser.parse(
20 args,
21 strict: [
22 manifest: :string
23 ],
24 aliases: [
25 m: :manifest
26 ]
27 )
28 end
29
30 def run(["ls-packs" | args]) do
31 Application.ensure_all_started(:hackney)
32
33 {options, [], []} = parse_global_opts(args)
34
35 manifest =
36 fetch_manifest(if options[:manifest], do: options[:manifest], else: @default_manifest)
37
38 Enum.each(manifest, fn {name, info} ->
39 to_print = [
40 {"Name", name},
41 {"Homepage", info["homepage"]},
42 {"Description", info["description"]},
43 {"License", info["license"]},
44 {"Source", info["src"]}
45 ]
46
47 for {param, value} <- to_print do
48 IO.puts(IO.ANSI.format([:bright, param, :normal, ": ", value]))
49 end
50 end)
51 end
52
53 def run(["get-packs" | args]) do
54 Application.ensure_all_started(:hackney)
55
56 {options, pack_names, []} = parse_global_opts(args)
57
58 manifest_url = if options[:manifest], do: options[:manifest], else: @default_manifest
59
60 manifest = fetch_manifest(manifest_url)
61
62 for pack_name <- pack_names do
63 if Map.has_key?(manifest, pack_name) do
64 pack = manifest[pack_name]
65 src_url = pack["src"]
66
67 IO.puts(
68 IO.ANSI.format([
69 "Downloading ",
70 :bright,
71 pack_name,
72 :normal,
73 " from ",
74 :underline,
75 src_url
76 ])
77 )
78
79 binary_archive = Tesla.get!(src_url).body
80 archive_md5 = :crypto.hash(:md5, binary_archive) |> Base.encode16()
81
82 md5_status_text = ["MD5 of ", :bright, pack_name, :normal, " source file is ", :bright]
83 if archive_md5 == String.upcase(pack["src_md5"]) do
84 IO.puts(IO.ANSI.format(md5_status_text ++ [:green, "OK"]))
85 else
86 IO.puts(IO.ANSI.format(md5_status_text ++ [:red, "BAD"]))
87
88 raise "Bad MD5 for #{pack_name}"
89 end
90
91 # The url specified in files should be in the same directory
92 files_url = Path.join(Path.dirname(manifest_url), pack["files"])
93
94 IO.puts(
95 IO.ANSI.format([
96 "Fetching the file list for ",
97 :bright,
98 pack_name,
99 :normal,
100 " from ",
101 :underline,
102 files_url
103 ])
104 )
105
106 files = Tesla.get!(files_url).body |> Poison.decode!()
107
108 IO.puts(IO.ANSI.format(["Unpacking ", :bright, pack_name]))
109
110 static_path = Path.join(:code.priv_dir(:pleroma), "static")
111
112 pack_path =
113 Path.join([
114 static_path,
115 Pleroma.Config.get!([:instance, :static_dir]),
116 "emoji",
117 pack_name
118 ])
119
120 files_to_unzip =
121 Enum.map(
122 files,
123 fn {_, f} -> to_charlist(f) end
124 )
125
126 {:ok, _} =
127 :zip.unzip(binary_archive,
128 cwd: pack_path,
129 file_list: files_to_unzip
130 )
131
132 IO.puts(IO.ANSI.format(["Writing emoji.txt for ", :bright, pack_name]))
133
134 emoji_txt_str =
135 Enum.map(
136 files,
137 fn {shortcode, path} ->
138 "#{shortcode}, /instance/static/emoji/#{pack_name}/#{path}"
139 end
140 )
141 |> Enum.join("\n")
142
143 File.write!(Path.join(pack_path, "emoji.txt"), emoji_txt_str)
144 else
145 IO.puts(IO.ANSI.format([:bright, :red, "No pack named \"#{pack_name}\" found"]))
146 end
147 end
148 end
149 end