Merge pull request 'Read image description from EXIF data' (#744) from timorl/akkoma:elseinspe into develop

Reviewed-on: https://akkoma.dev/AkkomaGang/akkoma/pulls/744

CHANGELOG.md

@@ -9,9 +9,11 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/).
 ## Added
 - Support for [FEP-fffd](https://codeberg.org/fediverse/fep/src/branch/main/fep/fffd/fep-fffd.md) (proxy objects)
 - Verified support for elixir 1.16
+- Uploadfilter `Pleroma.Upload.Filter.Exiftool.ReadDescription` returns description values to the FE so they can pre fill the image description field
 
 ## Changed
 - Inbound pipeline error handing was modified somewhat, which should lead to less incomprehensible log spam. Hopefully.
+- Uploadfilter `Pleroma.Upload.Filter.Exiftool` has been renamed to `Pleroma.Upload.Filter.Exiftool.StripMetadata`
 
 ## Fixed
 - Issue preventing fetching anything from IPv6-only instances

docs/docs/administration/CLI_tasks/instance.md

@@ -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-metadata <Y|N>` - use ExifTool to strip uploads of sensitive metadata
+- `--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

docs/docs/configuration/cheatsheet.md

@@ -654,12 +654,19 @@ This filter replaces the declared filename (not the path) of an upload.
 
 * `text`: Text to replace filenames in links. If empty, `{random}.extension` will be used. You can get the original filename extension by using `{extension}`, for example `custom-file-name.{extension}`.
 
-#### Pleroma.Upload.Filter.Exiftool
+#### Pleroma.Upload.Filter.Exiftool.StripMetadata
 
 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.OnlyMedia
 
 This filter rejects uploads that are not identified with Content-Type matching audio/\*, image/\*, or video/\*

docs/docs/installation/optional/media_graphics_packages.md

@@ -29,4 +29,5 @@ It is required for the following Akkoma features:
 `exiftool` is media files metadata reader/writer.
 
 It is required for the following Akkoma features:
-  * `Pleroma.Upload.Filters.Exiftool` upload filter (related config: `Plaroma.Upload/filters` in `config/config.exs`)
+  * `Pleroma.Upload.Filters.Exiftool.StripMetadata` 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`)

lib/mix/tasks/pleroma/instance.ex

@@ -35,7 +35,8 @@ defmodule Mix.Tasks.Pleroma.Instance do
           static_dir: :string,
           listen_ip: :string,
           listen_port: :string,
-          strip_uploads: :string,
+          strip_uploads_metadata: :string,
+          read_uploads_description: :string,
           anonymize_uploads: :string
         ],
         aliases: [
@@ -169,7 +170,7 @@ defmodule Mix.Tasks.Pleroma.Instance do
         )
         |> Path.expand()
 
-      {strip_uploads_message, strip_uploads_default} =
+      {strip_uploads_metadata_message, strip_uploads_metadata_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"}
@@ -178,12 +179,29 @@ defmodule Mix.Tasks.Pleroma.Instance do
            "n"}
         end
 
-      strip_uploads =
+      strip_uploads_metadata =
         get_option(
           options,
-          :strip_uploads,
-          strip_uploads_message,
-          strip_uploads_default
+          :strip_uploads_metadata,
+          strip_uploads_metadata_message,
+          strip_uploads_metadata_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 =
@@ -230,7 +248,8 @@ defmodule Mix.Tasks.Pleroma.Instance do
           listen_port: listen_port,
           upload_filters:
             upload_filters(%{
-              strip: strip_uploads,
+              strip_metadata: strip_uploads_metadata,
+              read_description: read_uploads_description,
               anonymize: anonymize_uploads
             })
         )
@@ -305,11 +324,20 @@ defmodule Mix.Tasks.Pleroma.Instance do
   end
 
   defp upload_filters(filters) when is_map(filters) do
+    enabled_filters = []
+
     enabled_filters =
-      if filters.strip do
-        [Pleroma.Upload.Filter.Exiftool]
+      if filters.read_description do
+        enabled_filters ++ [Pleroma.Upload.Filter.Exiftool.ReadDescription]
       else
-        []
+        enabled_filters
+      end
+
+    enabled_filters =
+      if filters.strip_metadata do
+        enabled_filters ++ [Pleroma.Upload.Filter.Exiftool.StripMetadata]
+      else
+        enabled_filters
       end
 
     enabled_filters =

lib/pleroma/application_requirements.ex

@@ -164,7 +164,8 @@ defmodule Pleroma.ApplicationRequirements do
 
   defp check_system_commands!(:ok) do
     filter_commands_statuses = [
-      check_filter(Pleroma.Upload.Filter.Exiftool, "exiftool"),
+      check_filter(Pleroma.Upload.Filter.Exiftool.StripMetadata, "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"),

lib/pleroma/config/deprecation_warnings.ex

@@ -22,6 +22,43 @@ defmodule Pleroma.Config.DeprecationWarnings do
      "\n* `config :pleroma, :instance, :quarantined_instances` is now covered by `:pleroma, :mrf_simple, :reject`"}
   ]
 
+  def check_exiftool_filter do
+    filters = Config.get([Pleroma.Upload]) |> Keyword.get(:filters, [])
+
+    if Pleroma.Upload.Filter.Exiftool in filters do
+      Logger.warning("""
+      !!!DEPRECATION WARNING!!!
+      Your config is using Exiftool as a filter instead of Exiftool.StripMetadata. 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.StripMetadata]
+      ```
+      """)
+
+      new_config =
+        filters
+        |> Enum.map(fn
+          Pleroma.Upload.Filter.Exiftool -> Pleroma.Upload.Filter.Exiftool.StripMetadata
+          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])
@@ -184,7 +221,8 @@ defmodule Pleroma.Config.DeprecationWarnings do
       check_simple_policy_tuples(),
       check_http_adapter(),
       check_uploader_base_url_set(),
-      check_uploader_base_url_is_not_base_domain()
+      check_uploader_base_url_is_not_base_domain(),
+      check_exiftool_filter()
     ]
     |> Enum.reduce(:ok, fn
       :ok, :ok -> :ok

lib/pleroma/upload.ex

@@ -61,12 +61,23 @@ defmodule Pleroma.Upload do
           width: integer(),
           height: integer(),
           blurhash: String.t(),
+          description: String.t(),
           path: String.t()
         }
 
   @always_enabled_filters [Pleroma.Upload.Filter.Dedupe]
 
-  defstruct [:id, :name, :tempfile, :content_type, :width, :height, :blurhash, :path]
+  defstruct [
+    :id,
+    :name,
+    :tempfile,
+    :content_type,
+    :width,
+    :height,
+    :blurhash,
+    :description,
+    :path
+  ]
 
   @spec store(source, options :: [option()]) :: {:ok, Map.t()} | {:error, any()}
   @doc "Store a file. If using a `Plug.Upload{}` as the source, be sure to use `Majic.Plug` to ensure its content_type and filename is correct."
@@ -76,7 +87,7 @@ defmodule Pleroma.Upload 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 = Map.get(opts, :description) || "",
+         description = Map.get(upload, :description) || "",
          {_, true} <-
            {:description_limit,
             String.length(description) <= Pleroma.Config.get([:instance, :description_limit])},
@@ -152,7 +163,8 @@ defmodule Pleroma.Upload 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 @@ defmodule Pleroma.Upload do
          id: UUID.generate(),
          name: hash <> "." <> ext,
          tempfile: tmp_path,
-         content_type: content_type
+         content_type: content_type,
+         description: opts.description
        }}
     end
   end

lib/pleroma/upload/filter/exiftool/read_description.ex

@@ -0,0 +1,52 @@
+# 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

lib/pleroma/upload/filter/exiftool/strip_metadata.ex

@@ -2,7 +2,7 @@
 # Copyright © 2017-2021 Pleroma Authors <https://pleroma.social/>
 # SPDX-License-Identifier: AGPL-3.0-only
 
-defmodule Pleroma.Upload.Filter.Exiftool do
+defmodule Pleroma.Upload.Filter.Exiftool.StripMetadata do
   @moduledoc """
   Strips GPS related EXIF tags and overwrites the file in place.
   Also strips or replaces filesystem metadata e.g., timestamps.

lib/pleroma/web/telemetry.ex

@@ -151,41 +151,40 @@ defmodule Pleroma.Web.Telemetry do
     #   phoenix.router_dispatch.stop.duration
     #   pleroma.repo.query.total_time
     #   pleroma.repo.query.queue_time
-    dist_metrics =
-      [
-        distribution("phoenix.endpoint.stop.duration.fdist",
-          event_name: [:phoenix, :endpoint, :stop],
-          measurement: :duration,
-          unit: {:native, :millisecond},
-          reporter_options: [
-            buckets: simple_buckets
-          ]
-        ),
-        distribution("pleroma.repo.query.decode_time.fdist",
-          event_name: [:pleroma, :repo, :query],
-          measurement: :decode_time,
-          unit: {:native, :millisecond},
-          reporter_options: [
-            buckets: simple_buckets_quick
-          ]
-        ),
-        distribution("pleroma.repo.query.query_time.fdist",
-          event_name: [:pleroma, :repo, :query],
-          measurement: :query_time,
-          unit: {:native, :millisecond},
-          reporter_options: [
-            buckets: simple_buckets
-          ]
-        ),
-        distribution("pleroma.repo.query.idle_time.fdist",
-          event_name: [:pleroma, :repo, :query],
-          measurement: :idle_time,
-          unit: {:native, :millisecond},
-          reporter_options: [
-            buckets: simple_buckets
-          ]
-        )
-      ]
+    dist_metrics = [
+      distribution("phoenix.endpoint.stop.duration.fdist",
+        event_name: [:phoenix, :endpoint, :stop],
+        measurement: :duration,
+        unit: {:native, :millisecond},
+        reporter_options: [
+          buckets: simple_buckets
+        ]
+      ),
+      distribution("pleroma.repo.query.decode_time.fdist",
+        event_name: [:pleroma, :repo, :query],
+        measurement: :decode_time,
+        unit: {:native, :millisecond},
+        reporter_options: [
+          buckets: simple_buckets_quick
+        ]
+      ),
+      distribution("pleroma.repo.query.query_time.fdist",
+        event_name: [:pleroma, :repo, :query],
+        measurement: :query_time,
+        unit: {:native, :millisecond},
+        reporter_options: [
+          buckets: simple_buckets
+        ]
+      ),
+      distribution("pleroma.repo.query.idle_time.fdist",
+        event_name: [:pleroma, :repo, :query],
+        measurement: :idle_time,
+        unit: {:native, :millisecond},
+        reporter_options: [
+          buckets: simple_buckets
+        ]
+      )
+    ]
 
     vm_metrics =
       sum_counter_pair("vm.memory.total",

priv/repo/migrations/20220220135625_upload_filter_exiftool_to_exiftool_strip_location.exs

@@ -0,0 +1,37 @@
+defmodule Pleroma.Repo.Migrations.UploadFilterExiftoolToExiftoolStripMetadata 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.StripMetadata
+      )
+
+  def down,
+    do:
+      ConfigDB.get_by_params(%{group: :pleroma, key: Pleroma.Upload})
+      |> update_filtername(
+        Pleroma.Upload.Filter.Exiftool.StripMetadata,
+        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

test/mix/tasks/pleroma/instance_test.exs

@@ -69,7 +69,9 @@ defmodule Mix.Tasks.Pleroma.InstanceTest do
         "test/uploads",
         "--static-dir",
         "./test/../test/instance/static/",
-        "--strip-uploads",
+        "--strip-uploads-metadata",
+        "y",
+        "--read-uploads-description",
         "y",
         "--anonymize-uploads",
         "n"
@@ -91,7 +93,10 @@ defmodule Mix.Tasks.Pleroma.InstanceTest 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.ReadDescription, Pleroma.Upload.Filter.Exiftool.StripMetadata]"
+
     assert generated_config =~ "base_url: \"https://media.pleroma.social/media\""
     assert File.read!(tmp_path() <> "setup.psql") == generated_setup_psql()
     assert File.exists?(Path.expand("./test/instance/static/robots.txt"))

test/pleroma/config/deprecation_warnings_test.exs

@@ -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.StripMetadata. 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.StripMetadata]
+               ```
+               """
+    end
+
+    test "changes setting to exiftool strip metadata" do
+      clear_config(
+        [Pleroma.Upload, :filters],
+        [Pleroma.Upload.Filter.Exiftool, Pleroma.Upload.Filter.Exiftool.ReadDescription]
+      )
+
+      expected_config = [
+        Pleroma.Upload.Filter.Exiftool.StripMetadata,
+        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.StripMetadata,
+          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],

test/pleroma/upload/filter/exiftool/read_description_test.exs

@@ -0,0 +1,117 @@
+# 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"),
+      description: nil
+    }
+
+    assert Filter.Exiftool.ReadDescription.filter(uploads) ==
+             {:ok, :filtered, uploads}
+  end
+end

test/pleroma/upload/filter/exiftool/strip_location_test.exs

@@ -2,7 +2,7 @@
 # Copyright © 2017-2021 Pleroma Authors <https://pleroma.social/>
 # SPDX-License-Identifier: AGPL-3.0-only
 
-defmodule Pleroma.Upload.Filter.ExiftoolTest do
+defmodule Pleroma.Upload.Filter.Exiftool.StripMetadataTest do
   use Pleroma.DataCase
   alias Pleroma.Upload.Filter
 
@@ -21,7 +21,7 @@ defmodule Pleroma.Upload.Filter.ExiftoolTest do
       tempfile: Path.absname("test/fixtures/DSCN0010_tmp.jpg")
     }
 
-    assert Filter.Exiftool.filter(upload) == {:ok, :filtered}
+    assert Filter.Exiftool.StripMetadata.filter(upload) == {:ok, :filtered}
 
     {exif_original, 0} = System.cmd("exiftool", ["test/fixtures/DSCN0010.jpg"])
     {exif_filtered, 0} = System.cmd("exiftool", ["test/fixtures/DSCN0010_tmp.jpg"])
@@ -37,6 +37,6 @@ defmodule Pleroma.Upload.Filter.ExiftoolTest do
       content_type: "image/webp"
     }
 
-    assert Filter.Exiftool.filter(upload) == {:ok, :noop}
+    assert Filter.Exiftool.StripMetadata.filter(upload) == {:ok, :noop}
   end
 end

test/pleroma/web/activity_pub/object_validators/attachment_validator_test.exs

@@ -12,14 +12,13 @@ defmodule Pleroma.Web.ActivityPub.ObjectValidators.AttachmentValidatorTest do
 
   describe "attachments" do
     test "works with apng" do
-      attachment =
-        %{
-          "mediaType" => "image/apng",
-          "name" => "",
-          "type" => "Document",
-          "url" =>
-            "https://media.misskeyusercontent.com/io/2859c26e-cd43-4550-848b-b6243bc3fe28.apng"
-        }
+      attachment = %{
+        "mediaType" => "image/apng",
+        "name" => "",
+        "type" => "Document",
+        "url" =>
+          "https://media.misskeyusercontent.com/io/2859c26e-cd43-4550-848b-b6243bc3fe28.apng"
+      }
 
       assert {:ok, attachment} =
                AttachmentValidator.cast_and_validate(attachment)

test/support/factory.ex

@@ -559,16 +559,15 @@ defmodule Pleroma.Factory do
     like_activity = attrs[:like_activity] || insert(:like_activity)
     attrs = Map.drop(attrs, [:like_activity])
 
-    data =
-      %{
-        "id" => Pleroma.Web.ActivityPub.Utils.generate_activity_id(),
-        "type" => "Undo",
-        "actor" => like_activity.data["actor"],
-        "to" => like_activity.data["to"],
-        "object" => like_activity.data["id"],
-        "published" => DateTime.utc_now() |> DateTime.to_iso8601(),
-        "context" => like_activity.data["context"]
-      }
+    data = %{
+      "id" => Pleroma.Web.ActivityPub.Utils.generate_activity_id(),
+      "type" => "Undo",
+      "actor" => like_activity.data["actor"],
+      "to" => like_activity.data["to"],
+      "object" => like_activity.data["id"],
+      "published" => DateTime.utc_now() |> DateTime.to_iso8601(),
+      "context" => like_activity.data["context"]
+    }
 
     %Pleroma.Activity{
       data: data,