pleroma/lib/mix/tasks/pleroma/instance.ex
Ilja cd316d7269 Use EXIF data of image to prefill image description
During attachment upload Pleroma returns a "description" field. Pleroma-fe has an MR to use that to pre-fill the image description field, <https://git.pleroma.social/pleroma/pleroma-fe/-/merge_requests/1399>

* This MR allows Pleroma to read the EXIF data during upload and return the description to the FE
    * If a description is already present (e.g. because a previous module added it), it will use that
    * Otherwise it will read from the EXIF data. First it will check -ImageDescription, if that's empty, it will check -iptc:Caption-Abstract
    * If no description is found, it will simply return nil, just like before
* When people set up a new instance, they will be asked if they want to read metadata and this module will be activated if so

This was taken from an MR i did on Pleroma and isn't finished yet.
2022-07-01 12:13:46 +02:00

351 lines
10 KiB
Elixir

# Pleroma: A lightweight social networking server
# Copyright © 2017-2022 Pleroma Authors <https://pleroma.social/>
# SPDX-License-Identifier: AGPL-3.0-only
defmodule Mix.Tasks.Pleroma.Instance do
use Mix.Task
import Mix.Pleroma
alias Pleroma.Config
@shortdoc "Manages Pleroma instance"
@moduledoc File.read!("docs/administration/CLI_tasks/instance.md")
def run(["gen" | rest]) do
{options, [], []} =
OptionParser.parse(
rest,
strict: [
force: :boolean,
output: :string,
output_psql: :string,
domain: :string,
instance_name: :string,
admin_email: :string,
notify_email: :string,
dbhost: :string,
dbname: :string,
dbuser: :string,
dbpass: :string,
rum: :string,
indexable: :string,
db_configurable: :string,
uploads_dir: :string,
static_dir: :string,
listen_ip: :string,
listen_port: :string,
strip_uploads: :string,
read_uploads_data: :string,
anonymize_uploads: :string,
dedupe_uploads: :string
],
aliases: [
o: :output,
f: :force
]
)
paths =
[config_path, psql_path] = [
Keyword.get(options, :output, "config/generated_config.exs"),
Keyword.get(options, :output_psql, "config/setup_db.psql")
]
will_overwrite = Enum.filter(paths, &File.exists?/1)
proceed? = Enum.empty?(will_overwrite) or Keyword.get(options, :force, false)
if proceed? do
[domain, port | _] =
String.split(
get_option(
options,
:domain,
"What domain will your instance use? (e.g pleroma.soykaf.com)"
),
":"
) ++ [443]
name =
get_option(
options,
:instance_name,
"What is the name of your instance? (e.g. The Corndog Emporium)",
domain
)
email = get_option(options, :admin_email, "What is your admin email address?")
notify_email =
get_option(
options,
:notify_email,
"What email address do you want to use for sending email notifications?",
email
)
indexable =
get_option(
options,
:indexable,
"Do you want search engines to index your site? (y/n)",
"y"
) === "y"
db_configurable? =
get_option(
options,
:db_configurable,
"Do you want to store the configuration in the database (allows controlling it from admin-fe)? (y/n)",
"n"
) === "y"
dbhost = get_option(options, :dbhost, "What is the hostname of your database?", "localhost")
dbname = get_option(options, :dbname, "What is the name of your database?", "pleroma")
dbuser =
get_option(
options,
:dbuser,
"What is the user used to connect to your database?",
"pleroma"
)
dbpass =
get_option(
options,
:dbpass,
"What is the password used to connect to your database?",
:crypto.strong_rand_bytes(64) |> Base.encode64() |> binary_part(0, 64),
"autogenerated"
)
rum_enabled =
get_option(
options,
:rum,
"Would you like to use RUM indices?",
"n"
) === "y"
listen_port =
get_option(
options,
:listen_port,
"What port will the app listen to (leave it if you are using the default setup with nginx)?",
4000
)
listen_ip =
get_option(
options,
:listen_ip,
"What ip will the app listen to (leave it if you are using the default setup with nginx)?",
"127.0.0.1"
)
uploads_dir =
get_option(
options,
:uploads_dir,
"What directory should media uploads go in (when using the local uploader)?",
Config.get([Pleroma.Uploaders.Local, :uploads])
)
|> Path.expand()
static_dir =
get_option(
options,
:static_dir,
"What directory should custom public files be read from (custom emojis, frontend bundle overrides, robots.txt, etc.)?",
Config.get([:instance, :static_dir])
)
|> Path.expand()
{strip_uploads_message, strip_uploads_default} =
if Pleroma.Utils.command_available?("exiftool") do
{"Do you want to strip location (GPS) data from uploaded images? This requires exiftool, it was detected as installed. (y/n)",
"y"}
else
{"Do you want to strip location (GPS) data from uploaded images? This requires exiftool, it was detected as not installed, please install it if you answer yes. (y/n)",
"n"}
end
strip_uploads =
get_option(
options,
:strip_uploads,
strip_uploads_message,
strip_uploads_default
) === "y"
{read_uploads_data_message, read_uploads_data_default} =
if Pleroma.Utils.command_available?("exiftool") do
{"Do you want to read data from uploaded files so clients can use it to prefill fields like image description? This requires exiftool, it was detected as installed. (y/n)",
"y"}
else
{"Do you want to read data from uploaded files so clients can use it to prefill fields like image description? This requires exiftool, it was detected as not installed, please install it if you answer yes. (y/n)",
"n"}
end
read_uploads_data =
get_option(
options,
:read_uploads_data,
read_uploads_data_message,
read_uploads_data_default
) === "y"
anonymize_uploads =
get_option(
options,
:anonymize_uploads,
"Do you want to anonymize the filenames of uploads? (y/n)",
"n"
) === "y"
dedupe_uploads =
get_option(
options,
:dedupe_uploads,
"Do you want to deduplicate uploaded files? (y/n)",
"n"
) === "y"
Config.put([:instance, :static_dir], static_dir)
secret = :crypto.strong_rand_bytes(64) |> Base.encode64() |> binary_part(0, 64)
jwt_secret = :crypto.strong_rand_bytes(64) |> Base.encode64() |> binary_part(0, 64)
signing_salt = :crypto.strong_rand_bytes(8) |> Base.encode64() |> binary_part(0, 8)
lv_signing_salt = :crypto.strong_rand_bytes(8) |> Base.encode64() |> binary_part(0, 8)
{web_push_public_key, web_push_private_key} = :crypto.generate_key(:ecdh, :prime256v1)
template_dir = Application.app_dir(:pleroma, "priv") <> "/templates"
result_config =
EEx.eval_file(
template_dir <> "/sample_config.eex",
domain: domain,
port: port,
email: email,
notify_email: notify_email,
name: name,
dbhost: dbhost,
dbname: dbname,
dbuser: dbuser,
dbpass: dbpass,
secret: secret,
jwt_secret: jwt_secret,
signing_salt: signing_salt,
lv_signing_salt: lv_signing_salt,
web_push_public_key: Base.url_encode64(web_push_public_key, padding: false),
web_push_private_key: Base.url_encode64(web_push_private_key, padding: false),
db_configurable?: db_configurable?,
static_dir: static_dir,
uploads_dir: uploads_dir,
rum_enabled: rum_enabled,
listen_ip: listen_ip,
listen_port: listen_port,
upload_filters:
upload_filters(%{
strip: strip_uploads,
read_data: read_uploads_data,
anonymize: anonymize_uploads,
dedupe: dedupe_uploads
})
)
result_psql =
EEx.eval_file(
template_dir <> "/sample_psql.eex",
dbname: dbname,
dbuser: dbuser,
dbpass: dbpass,
rum_enabled: rum_enabled
)
config_dir = Path.dirname(config_path)
psql_dir = Path.dirname(psql_path)
[config_dir, psql_dir, static_dir, uploads_dir]
|> Enum.reject(&File.exists?/1)
|> Enum.map(&File.mkdir_p!/1)
shell_info("Writing config to #{config_path}.")
File.write(config_path, result_config)
shell_info("Writing the postgres script to #{psql_path}.")
File.write(psql_path, result_psql)
write_robots_txt(static_dir, indexable, template_dir)
shell_info(
"\n All files successfully written! Refer to the installation instructions for your platform for next steps."
)
if db_configurable? do
shell_info(
" Please transfer your config to the database after running database migrations. Refer to \"Transfering the config to/from the database\" section of the docs for more information."
)
end
else
shell_error(
"The task would have overwritten the following files:\n" <>
(Enum.map(will_overwrite, &"- #{&1}\n") |> Enum.join("")) <>
"Rerun with `--force` to overwrite them."
)
end
end
defp write_robots_txt(static_dir, indexable, template_dir) do
robots_txt =
EEx.eval_file(
template_dir <> "/robots_txt.eex",
indexable: indexable
)
robots_txt_path = Path.join(static_dir, "robots.txt")
if File.exists?(robots_txt_path) do
File.cp!(robots_txt_path, "#{robots_txt_path}.bak")
shell_info("Backing up existing robots.txt to #{robots_txt_path}.bak")
end
File.write(robots_txt_path, robots_txt)
shell_info("Writing #{robots_txt_path}.")
end
defp upload_filters(filters) when is_map(filters) do
enabled_filters =
if filters.strip do
[Pleroma.Upload.Filter.Exiftool]
else
[]
end
enabled_filters =
if filters.read_data do
enabled_filters ++ [Pleroma.Upload.Filter.ExiftoolReadData]
else
enabled_filters
end
enabled_filters =
if filters.anonymize do
enabled_filters ++ [Pleroma.Upload.Filter.AnonymizeFilename]
else
enabled_filters
end
enabled_filters =
if filters.dedupe do
enabled_filters ++ [Pleroma.Upload.Filter.Dedupe]
else
enabled_filters
end
enabled_filters
end
defp upload_filters(_), do: []
end