Commit de37583c authored by Haelwenn's avatar Haelwenn
Browse files

Merge branch 'image_description_from_exif_data' into 'develop'

Use EXIF data of image for image description

See merge request pleroma/pleroma!3535
parents a15b45a5 56227ef7
Pipeline #40348 failed with stages
in 22 minutes and 16 seconds
......@@ -12,6 +12,7 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/).
### Changed
- Allow users to remove their emails if instance does not need email to register
- Uploadfilter `Pleroma.Upload.Filter.Exiftool` has been renamed to `Pleroma.Upload.Filter.Exiftool.StripLocation`
### Added
- `activeMonth` and `activeHalfyear` fields in NodeInfo usage.users object
......@@ -30,6 +31,7 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/).
- Configuration: Add `birthday_required` and `birthday_min_age` settings to provide a way to require users to enter their birth date.
- PleromaAPI: Add `GET /api/v1/pleroma/birthdays` API endpoint
- Make backend-rendered pages translatable. This includes emails. Pages returned as a HTTP response are translated using the language specified in the `userLanguage` cookie, or the `Accept-Language` header. Emails are translated using the `language` field when registering. This language can be changed by `PATCH /api/v1/accounts/update_credentials` with the `language` field.
- Uploadfilter `Pleroma.Upload.Filter.Exiftool.ReadDescription` returns description values to the FE so they can pre fill the image description field
### Fixed
- Subscription(Bell) Notifications: Don't create from Pipeline Ingested replies
......
......@@ -37,7 +37,8 @@ If any of the options are left unspecified, you will be prompted interactively.
- `--static-dir <path>` - the directory custom public files should be read from (custom emojis, frontend bundle overrides, robots.txt, etc.)
- `--listen-ip <ip>` - the ip the app should listen to, defaults to 127.0.0.1
- `--listen-port <port>` - the port the app should listen to, defaults to 4000
- `--strip-uploads <Y|N>` - use ExifTool to strip uploads of sensitive location data
- `--strip-uploads-location <Y|N>` - use ExifTool to strip uploads of sensitive location data
- `--read-uploads-description <Y|N>` - use ExifTool to read image descriptions from uploads
- `--anonymize-uploads <Y|N>` - randomize uploaded filenames
- `--dedupe-uploads <Y|N>` - store files based on their hash to reduce data storage requirements if duplicates are uploaded with different filenames
- `--skip-release-env` - skip generation the release environment file
......
......@@ -627,12 +627,18 @@ This filter replaces the filename (not the path) of an upload. For complete obfu
No specific configuration.
#### Pleroma.Upload.Filter.Exiftool
#### Pleroma.Upload.Filter.Exiftool.StripLocation
This filter only strips the GPS and location metadata with Exiftool leaving color profiles and attributes intact.
No specific configuration.
#### Pleroma.Upload.Filter.Exiftool.ReadDescription
This filter reads the ImageDescription and iptc:Caption-Abstract fields with Exiftool so clients can prefill the media description field.
No specific configuration.
#### Pleroma.Upload.Filter.Mogrify
* `args`: List of actions for the `mogrify` command like `"strip"` or `["strip", "auto-orient", {"implode", "1"}]`.
......
# Optional software packages needed for specific functionality
For specific Pleroma functionality (which is disabled by default) some or all of the below packages are required:
* `ImageMagic`
* `ffmpeg`
* `exiftool`
* `ImageMagic`
* `ffmpeg`
* `exiftool`
Please refer to documentation in `docs/installation` on how to install them on specific OS.
......@@ -14,19 +14,20 @@ Note: the packages are not required with the current default settings of Pleroma
`ImageMagick` is a set of tools to create, edit, compose, or convert bitmap images.
It is required for the following Pleroma features:
* `Pleroma.Upload.Filters.Mogrify`, `Pleroma.Upload.Filters.Mogrifun` upload filters (related config: `Plaroma.Upload/filters` in `config/config.exs`)
* Media preview proxy for still images (related config: `media_preview_proxy/enabled` in `config/config.exs`)
* `Pleroma.Upload.Filters.Mogrify`, `Pleroma.Upload.Filters.Mogrifun` upload filters (related config: `Plaroma.Upload/filters` in `config/config.exs`)
* Media preview proxy for still images (related config: `media_preview_proxy/enabled` in `config/config.exs`)
## `ffmpeg`
`ffmpeg` is software to record, convert and stream audio and video.
It is required for the following Pleroma features:
* Media preview proxy for videos (related config: `media_preview_proxy/enabled` in `config/config.exs`)
* Media preview proxy for videos (related config: `media_preview_proxy/enabled` in `config/config.exs`)
## `exiftool`
`exiftool` is media files metadata reader/writer.
It is required for the following Pleroma features:
* `Pleroma.Upload.Filters.Exiftool` upload filter (related config: `Plaroma.Upload/filters` in `config/config.exs`)
* `Pleroma.Upload.Filters.Exiftool.StripLocation` upload filter (related config: `Plaroma.Upload/filters` in `config/config.exs`)
* `Pleroma.Upload.Filters.Exiftool.ReadDescription` upload filter (related config: `Plaroma.Upload/filters` in `config/config.exs`)
......@@ -34,7 +34,8 @@ def run(["gen" | rest]) do
static_dir: :string,
listen_ip: :string,
listen_port: :string,
strip_uploads: :string,
strip_uploads_location: :string,
read_uploads_description: :string,
anonymize_uploads: :string,
dedupe_uploads: :string
],
......@@ -161,7 +162,7 @@ def run(["gen" | rest]) do
)
|> Path.expand()
{strip_uploads_message, strip_uploads_default} =
{strip_uploads_location_message, strip_uploads_location_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"}
......@@ -170,12 +171,29 @@ def run(["gen" | rest]) do
"n"}
end
strip_uploads =
strip_uploads_location =
get_option(
options,
:strip_uploads,
strip_uploads_message,
strip_uploads_default
:strip_uploads_location,
strip_uploads_location_message,
strip_uploads_location_default
) === "y"
{read_uploads_description_message, read_uploads_description_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_description =
get_option(
options,
:read_uploads_description,
read_uploads_description_message,
read_uploads_description_default
) === "y"
anonymize_uploads =
......@@ -229,7 +247,8 @@ def run(["gen" | rest]) do
listen_port: listen_port,
upload_filters:
upload_filters(%{
strip: strip_uploads,
strip_location: strip_uploads_location,
read_description: read_uploads_description,
anonymize: anonymize_uploads,
dedupe: dedupe_uploads
})
......@@ -297,12 +316,19 @@ defp write_robots_txt(static_dir, indexable, template_dir) do
defp upload_filters(filters) when is_map(filters) do
enabled_filters =
if filters.strip do
[Pleroma.Upload.Filter.Exiftool]
if filters.strip_location do
[Pleroma.Upload.Filter.Exiftool.StripLocation]
else
[]
end
enabled_filters =
if filters.read_description do
enabled_filters ++ [Pleroma.Upload.Filter.Exiftool.ReadDescription]
else
enabled_filters
end
enabled_filters =
if filters.anonymize do
enabled_filters ++ [Pleroma.Upload.Filter.AnonymizeFilename]
......
......@@ -164,7 +164,8 @@ defp do_check_rum!(setting, migrate) do
defp check_system_commands!(:ok) do
filter_commands_statuses = [
check_filter(Pleroma.Upload.Filter.Exiftool, "exiftool"),
check_filter(Pleroma.Upload.Filter.Exiftool.StripLocation, "exiftool"),
check_filter(Pleroma.Upload.Filter.Exiftool.ReadDescription, "exiftool"),
check_filter(Pleroma.Upload.Filter.Mogrify, "mogrify"),
check_filter(Pleroma.Upload.Filter.Mogrifun, "mogrify"),
check_filter(Pleroma.Upload.Filter.AnalyzeMetadata, "mogrify"),
......
......@@ -20,6 +20,43 @@ defmodule Pleroma.Config.DeprecationWarnings do
"\n* `config :pleroma, :instance, mrf_transparency_exclusions` is now `config :pleroma, :mrf, transparency_exclusions`"}
]
def check_exiftool_filter do
filters = Config.get([Pleroma.Upload]) |> Keyword.get(:filters, [])
if Pleroma.Upload.Filter.Exiftool in filters do
Logger.warn("""
!!!DEPRECATION WARNING!!!
Your config is using Exiftool as a filter instead of Exiftool.StripLocation. This should work for now, but you are advised to change to the new configuration to prevent possible issues later:
```
config :pleroma, Pleroma.Upload,
filters: [Pleroma.Upload.Filter.Exiftool]
```
Is now
```
config :pleroma, Pleroma.Upload,
filters: [Pleroma.Upload.Filter.Exiftool.StripLocation]
```
""")
new_config =
filters
|> Enum.map(fn
Pleroma.Upload.Filter.Exiftool -> Pleroma.Upload.Filter.Exiftool.StripLocation
filter -> filter
end)
Config.put([Pleroma.Upload, :filters], new_config)
:error
else
:ok
end
end
def check_simple_policy_tuples do
has_strings =
Config.get([:mrf_simple])
......@@ -180,7 +217,8 @@ def warn do
check_old_chat_shoutbox(),
check_quarantined_instances_tuples(),
check_transparency_exclusions_tuples(),
check_simple_policy_tuples()
check_simple_policy_tuples(),
check_exiftool_filter()
]
|> Enum.reduce(:ok, fn
:ok, :ok -> :ok
......
......@@ -60,12 +60,23 @@ defmodule Pleroma.Upload do
width: integer(),
height: integer(),
blurhash: String.t(),
description: String.t(),
path: String.t()
}
defstruct [:id, :name, :tempfile, :content_type, :width, :height, :blurhash, :path]
defp get_description(opts, upload) do
case {opts[:description], Pleroma.Config.get([Pleroma.Upload, :default_description])} do
defstruct [
:id,
:name,
:tempfile,
:content_type,
:width,
:height,
:blurhash,
:description,
:path
]
defp get_description(upload) do
case {upload.description, Pleroma.Config.get([Pleroma.Upload, :default_description])} do
{description, _} when is_binary(description) -> description
{_, :filename} -> upload.name
{_, str} when is_binary(str) -> str
......@@ -81,7 +92,7 @@ def store(upload, opts \\ []) do
with {:ok, upload} <- prepare_upload(upload, opts),
upload = %__MODULE__{upload | path: upload.path || "#{upload.id}/#{upload.name}"},
{:ok, upload} <- Pleroma.Upload.Filter.filter(opts.filters, upload),
description = get_description(opts, upload),
description = get_description(upload),
{_, true} <-
{:description_limit,
String.length(description) <= Pleroma.Config.get([:instance, :description_limit])},
......@@ -152,7 +163,8 @@ defp prepare_upload(%Plug.Upload{} = file, opts) do
id: UUID.generate(),
name: file.filename,
tempfile: file.path,
content_type: file.content_type
content_type: file.content_type,
description: opts.description
}}
end
end
......@@ -172,7 +184,8 @@ defp prepare_upload(%{img: "data:image/" <> image_data}, opts) do
id: UUID.generate(),
name: hash <> "." <> ext,
tempfile: tmp_path,
content_type: content_type
content_type: content_type,
description: opts.description
}}
end
end
......
# Pleroma: A lightweight social networking server
# Copyright © 2017-2021 Pleroma Authors <https://pleroma.social/>
# SPDX-License-Identifier: AGPL-3.0-only
defmodule Pleroma.Upload.Filter.Exiftool.ReadDescription do
@moduledoc """
Gets a valid description from the related EXIF tags and provides them in the response if no description is provided yet.
It will first check ImageDescription, when that doesn't probide a valid description, it will check iptc:Caption-Abstract.
A valid description means the fields are filled in and not too long (see `:instance, :description_limit`).
"""
@behaviour Pleroma.Upload.Filter
@spec filter(Pleroma.Upload.t()) :: {:ok, any()} | {:error, String.t()}
def filter(%Pleroma.Upload{description: description})
when is_binary(description),
do: {:ok, :noop}
def filter(%Pleroma.Upload{tempfile: file} = upload),
do: {:ok, :filtered, upload |> Map.put(:description, read_description_from_exif_data(file))}
def filter(_, _), do: {:ok, :noop}
defp read_description_from_exif_data(file) do
nil
|> read_when_empty(file, "-ImageDescription")
|> read_when_empty(file, "-iptc:Caption-Abstract")
end
defp read_when_empty(current_description, _, _) when is_binary(current_description),
do: current_description
defp read_when_empty(_, file, tag) do
try do
{tag_content, 0} =
System.cmd("exiftool", ["-b", "-s3", tag, file], stderr_to_stdout: true, parallelism: true)
tag_content = String.trim(tag_content)
if tag_content != "" and
String.length(tag_content) <=
Pleroma.Config.get([:instance, :description_limit]),
do: tag_content,
else: nil
rescue
_ in ErlangError -> nil
end
end
end
......@@ -2,7 +2,7 @@
# Copyright © 2017-2022 Pleroma Authors <https://pleroma.social/>
# SPDX-License-Identifier: AGPL-3.0-only
defmodule Pleroma.Upload.Filter.Exiftool do
defmodule Pleroma.Upload.Filter.Exiftool.StripLocation do
@moduledoc """
Strips GPS related EXIF tags and overwrites the file in place.
Also strips or replaces filesystem metadata e.g., timestamps.
......
defmodule Pleroma.Repo.Migrations.UploadFilterExiftoolToExiftoolStripLocation do
use Ecto.Migration
alias Pleroma.ConfigDB
def up,
do:
ConfigDB.get_by_params(%{group: :pleroma, key: Pleroma.Upload})
|> update_filtername(
Pleroma.Upload.Filter.Exiftool,
Pleroma.Upload.Filter.Exiftool.StripLocation
)
def down,
do:
ConfigDB.get_by_params(%{group: :pleroma, key: Pleroma.Upload})
|> update_filtername(
Pleroma.Upload.Filter.Exiftool.StripLocation,
Pleroma.Upload.Filter.Exiftool
)
defp update_filtername(%{value: value}, from_filtername, to_filtername) do
new_value =
value
|> Keyword.update(:filters, [], fn filters ->
filters
|> Enum.map(fn
^from_filtername -> to_filtername
filter -> filter
end)
end)
ConfigDB.update_or_create(%{group: :pleroma, key: Pleroma.Upload, value: new_value})
end
defp update_filtername(_, _, _), do: nil
end
......@@ -67,7 +67,9 @@ test "running gen" do
"test/uploads",
"--static-dir",
"./test/../test/instance/static/",
"--strip-uploads",
"--strip-uploads-location",
"y",
"--read-uploads-description",
"y",
"--dedupe-uploads",
"n",
......@@ -91,7 +93,10 @@ test "running gen" do
assert generated_config =~ "password: \"dbpass\""
assert generated_config =~ "configurable_from_database: true"
assert generated_config =~ "http: [ip: {127, 0, 0, 1}, port: 4000]"
assert generated_config =~ "filters: [Pleroma.Upload.Filter.Exiftool]"
assert generated_config =~
"filters: [Pleroma.Upload.Filter.Exiftool.StripLocation, Pleroma.Upload.Filter.Exiftool.ReadDescription]"
assert File.read!(tmp_path() <> "setup.psql") == generated_setup_psql()
assert File.exists?(Path.expand("./test/instance/static/robots.txt"))
end
......
......@@ -11,6 +11,62 @@ defmodule Pleroma.Config.DeprecationWarningsTest do
alias Pleroma.Config
alias Pleroma.Config.DeprecationWarnings
describe "filter exiftool" do
test "gives warning when still used" do
clear_config(
[Pleroma.Upload, :filters],
[Pleroma.Upload.Filter.Exiftool]
)
assert capture_log(fn -> DeprecationWarnings.check_exiftool_filter() end) =~
"""
!!!DEPRECATION WARNING!!!
Your config is using Exiftool as a filter instead of Exiftool.StripLocation. This should work for now, but you are advised to change to the new configuration to prevent possible issues later:
```
config :pleroma, Pleroma.Upload,
filters: [Pleroma.Upload.Filter.Exiftool]
```
Is now
```
config :pleroma, Pleroma.Upload,
filters: [Pleroma.Upload.Filter.Exiftool.StripLocation]
```
"""
end
test "changes setting to exiftool strip location" do
clear_config(
[Pleroma.Upload, :filters],
[Pleroma.Upload.Filter.Exiftool, Pleroma.Upload.Filter.Exiftool.ReadDescription]
)
expected_config = [
Pleroma.Upload.Filter.Exiftool.StripLocation,
Pleroma.Upload.Filter.Exiftool.ReadDescription
]
capture_log(fn -> DeprecationWarnings.warn() end)
assert Config.get([Pleroma.Upload]) |> Keyword.get(:filters, []) == expected_config
end
test "doesn't give a warning with correct config" do
clear_config(
[Pleroma.Upload, :filters],
[
Pleroma.Upload.Filter.Exiftool.StripLocation,
Pleroma.Upload.Filter.Exiftool.ReadDescription
]
)
assert capture_log(fn -> DeprecationWarnings.check_exiftool_filter() end) == ""
end
end
describe "simple policy tuples" do
test "gives warning when there are still strings" do
clear_config([:mrf_simple],
......
# Pleroma: A lightweight social networking server
# Copyright © 2017-2021 Pleroma Authors <https://pleroma.social/>
# SPDX-License-Identifier: AGPL-3.0-only
defmodule Pleroma.Upload.Filter.Exiftool.ReadDescriptionTest do
use Pleroma.DataCase, async: true
alias Pleroma.Upload.Filter
@uploads %Pleroma.Upload{
name: "image_with_imagedescription_and_caption-abstract.jpg",
content_type: "image/jpeg",
path: Path.absname("test/fixtures/image_with_imagedescription_and_caption-abstract.jpg"),
tempfile: Path.absname("test/fixtures/image_with_imagedescription_and_caption-abstract.jpg"),
description: nil
}
test "keeps description when not empty" do
uploads = %Pleroma.Upload{
name: "image_with_imagedescription_and_caption-abstract.jpg",
content_type: "image/jpeg",
path: Path.absname("test/fixtures/image_with_imagedescription_and_caption-abstract.jpg"),
tempfile:
Path.absname("test/fixtures/image_with_imagedescription_and_caption-abstract.jpg"),
description: "Some description"
}
assert Filter.Exiftool.ReadDescription.filter(uploads) ==
{:ok, :noop}
end
test "otherwise returns ImageDescription when present" do
uploads_after = %Pleroma.Upload{
name: "image_with_imagedescription_and_caption-abstract.jpg",
content_type: "image/jpeg",
path: Path.absname("test/fixtures/image_with_imagedescription_and_caption-abstract.jpg"),
tempfile:
Path.absname("test/fixtures/image_with_imagedescription_and_caption-abstract.jpg"),
description: "a descriptive white pixel"
}
assert Filter.Exiftool.ReadDescription.filter(@uploads) ==
{:ok, :filtered, uploads_after}
end
test "otherwise returns iptc:Caption-Abstract when present" do
upload = %Pleroma.Upload{
name: "image_with_caption-abstract.jpg",
content_type: "image/jpeg",
path: Path.absname("test/fixtures/image_with_caption-abstract.jpg"),
tempfile: Path.absname("test/fixtures/image_with_caption-abstract.jpg"),
description: nil
}
upload_after = %Pleroma.Upload{
name: "image_with_caption-abstract.jpg",
content_type: "image/jpeg",
path: Path.absname("test/fixtures/image_with_caption-abstract.jpg"),
tempfile: Path.absname("test/fixtures/image_with_caption-abstract.jpg"),
description: "an abstract white pixel"
}
assert Filter.Exiftool.ReadDescription.filter(upload) ==
{:ok, :filtered, upload_after}
end
test "otherwise returns nil" do
uploads = %Pleroma.Upload{
name: "image_with_no_description.jpg",
content_type: "image/jpeg",
path: Path.absname("test/fixtures/image_with_no_description.jpg"),
tempfile: Path.absname("test/fixtures/image_with_no_description.jpg"),
description: nil
}
assert Filter.Exiftool.ReadDescription.filter(uploads) ==
{:ok, :filtered, uploads}
end
test "Return nil when image description from EXIF data exceeds the maximum length" do
clear_config([:instance, :description_limit], 5)
assert Filter.Exiftool.ReadDescription.filter(@uploads) ==
{:ok, :filtered, @uploads}
end
test "Ignores content with only whitespace" do
uploads = %Pleroma.Upload{
name: "non-existant.jpg",
content_type: "image/jpeg",
path:
Path.absname(
"test/fixtures/image_with_imagedescription_and_caption-abstract_whitespaces.jpg"
),
tempfile:
Path.absname(
"test/fixtures/image_with_imagedescription_and_caption-abstract_whitespaces.jpg"
),
description: nil
}
assert Filter.Exiftool.ReadDescription.filter(uploads) ==
{:ok, :filtered, uploads}
end
test "Return nil when image description from EXIF data can't be read" do
uploads = %Pleroma.Upload{
name: "non-existant.jpg",
content_type: "image/jpeg",
path: Path.absname("test/fixtures/non-existant.jpg"),
tempfile: Path.absname("test/fixtures/non-existant_tmp.jpg"),