From 709816a0f891d6c26c43b54577a3b727c1fe4af6 Mon Sep 17 00:00:00 2001
From: Thurloat <thurloat@gmail.com>
Date: Mon, 27 Aug 2018 22:20:54 -0300
Subject: [PATCH 01/10] example of flexible storage backends

---
 config/config.exs              | 10 ++++--
 lib/pleroma/upload.ex          | 66 ++--------------------------------
 lib/pleroma/uploaders/local.ex | 44 +++++++++++++++++++++++
 lib/pleroma/uploaders/s3.ex    | 24 +++++++++++++
 lib/pleroma/uploaders/swift.ex |  0
 5 files changed, 77 insertions(+), 67 deletions(-)
 create mode 100644 lib/pleroma/uploaders/local.ex
 create mode 100644 lib/pleroma/uploaders/s3.ex
 create mode 100644 lib/pleroma/uploaders/swift.ex

diff --git a/config/config.exs b/config/config.exs
index d234d23eb..4eb59994c 100644
--- a/config/config.exs
+++ b/config/config.exs
@@ -11,9 +11,13 @@ config :pleroma, ecto_repos: [Pleroma.Repo]
 config :pleroma, Pleroma.Repo, types: Pleroma.PostgresTypes
 
 config :pleroma, Pleroma.Upload,
-  uploads: "uploads",
-  strip_exif: false,
-  use_s3: false,
+  uploader: Pleroma.Uploaders.Local
+  strip_exif: false
+
+config :pleroma, Pleroma.Uploaders.Local,
+  uploads: "uploads"
+
+config :pleroma, Pleroma.Uploaders.S3,
   s3_bucket: nil
 
 config :pleroma, :emoji, shortcode_globs: ["/emoji/custom/**/*.png"]
diff --git a/lib/pleroma/upload.ex b/lib/pleroma/upload.ex
index a744e6fd4..d7cc8122a 100644
--- a/lib/pleroma/upload.ex
+++ b/lib/pleroma/upload.ex
@@ -4,31 +4,15 @@ defmodule Pleroma.Upload do
 
   def store(%Plug.Upload{} = file, should_dedupe) do
     settings = Application.get_env(:pleroma, Pleroma.Upload)
-    use_s3 = Keyword.fetch!(settings, :use_s3)
+    storage_backend = Keyword.fetch!(settings, :storage_backend)
 
     content_type = get_content_type(file.path)
     uuid = get_uuid(file, should_dedupe)
     name = get_name(file, uuid, content_type, should_dedupe)
-    upload_folder = get_upload_path(uuid, should_dedupe)
-    url_path = get_url(name, uuid, should_dedupe)
 
     strip_exif_data(content_type, file.path)
 
-    File.mkdir_p!(upload_folder)
-    result_file = Path.join(upload_folder, name)
-
-    if File.exists?(result_file) do
-      File.rm!(file.path)
-    else
-      File.cp!(file.path, result_file)
-    end
-
-    url_path =
-      if use_s3 do
-        put_s3_file(name, uuid, result_file, content_type)
-      else
-        url_path
-      end
+    url_path = storage_backend.put_file(name, uuid, content_type)
 
     %{
       "type" => "Document",
@@ -115,11 +99,6 @@ defmodule Pleroma.Upload do
     end
   end
 
-  def upload_path do
-    settings = Application.get_env(:pleroma, Pleroma.Upload)
-    Keyword.fetch!(settings, :uploads)
-  end
-
   defp create_name(uuid, ext, type) do
     case type do
       "application/octet-stream" ->
@@ -163,26 +142,6 @@ defmodule Pleroma.Upload do
     end
   end
 
-  defp get_upload_path(uuid, should_dedupe) do
-    if should_dedupe do
-      upload_path()
-    else
-      Path.join(upload_path(), uuid)
-    end
-  end
-
-  defp get_url(name, uuid, should_dedupe) do
-    if should_dedupe do
-      url_for(:cow_uri.urlencode(name))
-    else
-      url_for(Path.join(uuid, :cow_uri.urlencode(name)))
-    end
-  end
-
-  defp url_for(file) do
-    "#{Web.base_url()}/media/#{file}"
-  end
-
   def get_content_type(file) do
     match =
       File.open(file, [:read], fn f ->
@@ -224,25 +183,4 @@ defmodule Pleroma.Upload do
       _e -> "application/octet-stream"
     end
   end
-
-  defp put_s3_file(name, uuid, path, content_type) do
-    settings = Application.get_env(:pleroma, Pleroma.Upload)
-    bucket = Keyword.fetch!(settings, :bucket)
-    public_endpoint = Keyword.fetch!(settings, :public_endpoint)
-
-    {:ok, file_data} = File.read(path)
-
-    File.rm!(path)
-
-    s3_name = "#{uuid}/#{name}"
-
-    {:ok, result} =
-      ExAws.S3.put_object(bucket, s3_name, file_data, [
-        {:acl, :public_read},
-        {:content_type, content_type}
-      ])
-      |> ExAws.request()
-
-    "#{public_endpoint}/#{bucket}/#{s3_name}"
-  end
 end
diff --git a/lib/pleroma/uploaders/local.ex b/lib/pleroma/uploaders/local.ex
new file mode 100644
index 000000000..7e5d7a59b
--- /dev/null
+++ b/lib/pleroma/uploaders/local.ex
@@ -0,0 +1,44 @@
+defmodule Pleroma.Uploaders.Local do
+  def put_file(name, uuid, file, content_type) do
+
+    upload_path = get_upload_path(uuid, should_dedupe)
+    url_path = get_url(name, uuid, should_dedupe)
+
+    File.mkdir_p!(upload_folder)
+
+    result_file = Path.join(upload_folder, name)
+
+    if File.exists?(result_file) do
+      File.rm!(file.path)
+    else
+      File.cp!(file.path, result_file)
+    end
+
+    url_path
+  end
+
+  def upload_path do
+    settings = Application.get_env(:pleroma, Pleroma.Uploaders.Local)
+    Keyword.fetch!(settings, :uploads)
+  end
+
+  defp get_upload_path(uuid, should_dedupe) do
+    if should_dedupe do
+      upload_path()
+    else
+      Path.join(upload_path(), uuid)
+    end
+  end
+
+  defp get_url(name, uuid, should_dedupe) do
+    if should_dedupe do
+      url_for(:cow_uri.urlencode(name))
+    else
+      url_for(Path.join(uuid, :cow_uri.urlencode(name)))
+    end
+  end
+
+  defp url_for(file) do
+    "#{Web.base_url()}/media/#{file}"
+  end
+end
diff --git a/lib/pleroma/uploaders/s3.ex b/lib/pleroma/uploaders/s3.ex
new file mode 100644
index 000000000..95f20be67
--- /dev/null
+++ b/lib/pleroma/uploaders/s3.ex
@@ -0,0 +1,24 @@
+defmodule Pleroma.Uploaders.S3 do
+
+  def put_file(name, uuid, path, content_type) do
+
+    settings = Application.get_env(:pleroma, Pleroma.Uploaders.S3)
+    bucket = Keyword.fetch!(settings, :bucket)
+    public_endpoint = Keyword.fetch!(settings, :public_endpoint)
+
+    {:ok, file_data} = File.read(path)
+
+    File.rm!(path)
+
+    s3_name = "#{uuid}/#{name}"
+
+    {:ok, result} =
+      ExAws.S3.put_object(bucket, s3_name, file_data, [
+        {:acl, :public_read},
+        {:content_type, content_type}
+      ])
+      |> ExAws.request()
+
+    "#{public_endpoint}/#{bucket}/#{s3_name}"
+  end
+end
diff --git a/lib/pleroma/uploaders/swift.ex b/lib/pleroma/uploaders/swift.ex
new file mode 100644
index 000000000..e69de29bb

From 0df558a6a5f5a5f64de57c91074981429da08764 Mon Sep 17 00:00:00 2001
From: Thurloat <thurloat@gmail.com>
Date: Mon, 27 Aug 2018 22:45:53 -0300
Subject: [PATCH 02/10] cleaning up a bit.

---
 config/config.exs              | 2 +-
 lib/pleroma/upload.ex          | 6 +++---
 lib/pleroma/uploaders/local.ex | 7 +++++--
 lib/pleroma/uploaders/s3.ex    | 4 ++--
 lib/pleroma/web/endpoint.ex    | 2 +-
 5 files changed, 12 insertions(+), 9 deletions(-)

diff --git a/config/config.exs b/config/config.exs
index 4eb59994c..fe4bfe8a0 100644
--- a/config/config.exs
+++ b/config/config.exs
@@ -11,7 +11,7 @@ config :pleroma, ecto_repos: [Pleroma.Repo]
 config :pleroma, Pleroma.Repo, types: Pleroma.PostgresTypes
 
 config :pleroma, Pleroma.Upload,
-  uploader: Pleroma.Uploaders.Local
+  uploader: Pleroma.Uploaders.Local,
   strip_exif: false
 
 config :pleroma, Pleroma.Uploaders.Local,
diff --git a/lib/pleroma/upload.ex b/lib/pleroma/upload.ex
index d7cc8122a..e3ad6757b 100644
--- a/lib/pleroma/upload.ex
+++ b/lib/pleroma/upload.ex
@@ -1,6 +1,5 @@
 defmodule Pleroma.Upload do
   alias Ecto.UUID
-  alias Pleroma.Web
 
   def store(%Plug.Upload{} = file, should_dedupe) do
     settings = Application.get_env(:pleroma, Pleroma.Upload)
@@ -26,7 +25,7 @@ defmodule Pleroma.Upload do
       "name" => name
     }
   end
-
+  """
   # XXX: does this code actually work?  i am skeptical.  --kaniini
   def store(%{"img" => "data:image/" <> image_data}, should_dedupe) do
     settings = Application.get_env(:pleroma, Pleroma.Upload)
@@ -88,11 +87,12 @@ defmodule Pleroma.Upload do
       "name" => name
     }
   end
+  """
 
   def strip_exif_data(content_type, file) do
     settings = Application.get_env(:pleroma, Pleroma.Upload)
     do_strip = Keyword.fetch!(settings, :strip_exif)
-    [filetype, ext] = String.split(content_type, "/")
+    [filetype, _ext] = String.split(content_type, "/")
 
     if filetype == "image" and do_strip == true do
       Mogrify.open(file) |> Mogrify.custom("strip") |> Mogrify.save(in_place: true)
diff --git a/lib/pleroma/uploaders/local.ex b/lib/pleroma/uploaders/local.ex
index 7e5d7a59b..1ba68776f 100644
--- a/lib/pleroma/uploaders/local.ex
+++ b/lib/pleroma/uploaders/local.ex
@@ -1,7 +1,10 @@
 defmodule Pleroma.Uploaders.Local do
-  def put_file(name, uuid, file, content_type) do
 
-    upload_path = get_upload_path(uuid, should_dedupe)
+  alias Pleroma.Web
+
+  def put_file(name, uuid, file, _content_type, should_dedupe) do
+
+    upload_folder = get_upload_path(uuid, should_dedupe)
     url_path = get_url(name, uuid, should_dedupe)
 
     File.mkdir_p!(upload_folder)
diff --git a/lib/pleroma/uploaders/s3.ex b/lib/pleroma/uploaders/s3.ex
index 95f20be67..ea9e49cbf 100644
--- a/lib/pleroma/uploaders/s3.ex
+++ b/lib/pleroma/uploaders/s3.ex
@@ -1,6 +1,6 @@
 defmodule Pleroma.Uploaders.S3 do
 
-  def put_file(name, uuid, path, content_type) do
+  def put_file(name, uuid, path, content_type, _should_dedupe) do
 
     settings = Application.get_env(:pleroma, Pleroma.Uploaders.S3)
     bucket = Keyword.fetch!(settings, :bucket)
@@ -12,7 +12,7 @@ defmodule Pleroma.Uploaders.S3 do
 
     s3_name = "#{uuid}/#{name}"
 
-    {:ok, result} =
+    {:ok, _} =
       ExAws.S3.put_object(bucket, s3_name, file_data, [
         {:acl, :public_read},
         {:content_type, content_type}
diff --git a/lib/pleroma/web/endpoint.ex b/lib/pleroma/web/endpoint.ex
index cbedca004..1e5ac2721 100644
--- a/lib/pleroma/web/endpoint.ex
+++ b/lib/pleroma/web/endpoint.ex
@@ -11,7 +11,7 @@ defmodule Pleroma.Web.Endpoint do
   #
   # You should set gzip to true if you are running phoenix.digest
   # when deploying your static files in production.
-  plug(Plug.Static, at: "/media", from: Pleroma.Upload.upload_path(), gzip: false)
+  plug(Plug.Static, at: "/media", from: Pleroma.Uploaders.Local.upload_path(), gzip: false)
 
   plug(
     Plug.Static,

From 8d2d7a8859754ab4beffcc43a87218631b07f378 Mon Sep 17 00:00:00 2001
From: Thurloat <thurloat@gmail.com>
Date: Tue, 28 Aug 2018 09:57:41 -0300
Subject: [PATCH 03/10] Implement uploader behaviour

run formatter <#
---
 config/config.exs              | 6 ++----
 lib/pleroma/upload.ex          | 9 +++++----
 lib/pleroma/uploaders/local.ex | 2 +-
 lib/pleroma/uploaders/s3.ex    | 2 +-
 lib/pleroma/uploaders/swift.ex | 1 +
 5 files changed, 10 insertions(+), 10 deletions(-)

diff --git a/config/config.exs b/config/config.exs
index fe4bfe8a0..fa36209ac 100644
--- a/config/config.exs
+++ b/config/config.exs
@@ -14,11 +14,9 @@ config :pleroma, Pleroma.Upload,
   uploader: Pleroma.Uploaders.Local,
   strip_exif: false
 
-config :pleroma, Pleroma.Uploaders.Local,
-  uploads: "uploads"
+config :pleroma, Pleroma.Uploaders.Local, uploads: "uploads"
 
-config :pleroma, Pleroma.Uploaders.S3,
-  s3_bucket: nil
+config :pleroma, Pleroma.Uploaders.S3, s3_bucket: nil
 
 config :pleroma, :emoji, shortcode_globs: ["/emoji/custom/**/*.png"]
 
diff --git a/lib/pleroma/upload.ex b/lib/pleroma/upload.ex
index e3ad6757b..e786693ad 100644
--- a/lib/pleroma/upload.ex
+++ b/lib/pleroma/upload.ex
@@ -1,17 +1,17 @@
 defmodule Pleroma.Upload do
   alias Ecto.UUID
 
-  def store(%Plug.Upload{} = file, should_dedupe) do
-    settings = Application.get_env(:pleroma, Pleroma.Upload)
-    storage_backend = Keyword.fetch!(settings, :storage_backend)
+  @storage_backend Application.get_env(:pleroma, Pleroma.Upload)
+                   |> Keyword.fetch!(:uploader)
 
+  def store(%Plug.Upload{} = file, should_dedupe) do
     content_type = get_content_type(file.path)
     uuid = get_uuid(file, should_dedupe)
     name = get_name(file, uuid, content_type, should_dedupe)
 
     strip_exif_data(content_type, file.path)
 
-    url_path = storage_backend.put_file(name, uuid, content_type)
+    url_path = @storage_backend.put_file(name, uuid, file, content_type, should_dedupe)
 
     %{
       "type" => "Document",
@@ -25,6 +25,7 @@ defmodule Pleroma.Upload do
       "name" => name
     }
   end
+
   """
   # XXX: does this code actually work?  i am skeptical.  --kaniini
   def store(%{"img" => "data:image/" <> image_data}, should_dedupe) do
diff --git a/lib/pleroma/uploaders/local.ex b/lib/pleroma/uploaders/local.ex
index 1ba68776f..b089c8f14 100644
--- a/lib/pleroma/uploaders/local.ex
+++ b/lib/pleroma/uploaders/local.ex
@@ -1,9 +1,9 @@
 defmodule Pleroma.Uploaders.Local do
+  @behaviour Pleroma.Uploaders.Uploader
 
   alias Pleroma.Web
 
   def put_file(name, uuid, file, _content_type, should_dedupe) do
-
     upload_folder = get_upload_path(uuid, should_dedupe)
     url_path = get_url(name, uuid, should_dedupe)
 
diff --git a/lib/pleroma/uploaders/s3.ex b/lib/pleroma/uploaders/s3.ex
index ea9e49cbf..e18deb6b3 100644
--- a/lib/pleroma/uploaders/s3.ex
+++ b/lib/pleroma/uploaders/s3.ex
@@ -1,7 +1,7 @@
 defmodule Pleroma.Uploaders.S3 do
+  @behaviour Pleroma.Uploaders.Uploader
 
   def put_file(name, uuid, path, content_type, _should_dedupe) do
-
     settings = Application.get_env(:pleroma, Pleroma.Uploaders.S3)
     bucket = Keyword.fetch!(settings, :bucket)
     public_endpoint = Keyword.fetch!(settings, :public_endpoint)
diff --git a/lib/pleroma/uploaders/swift.ex b/lib/pleroma/uploaders/swift.ex
index e69de29bb..8b1378917 100644
--- a/lib/pleroma/uploaders/swift.ex
+++ b/lib/pleroma/uploaders/swift.ex
@@ -0,0 +1 @@
+

From dad39b24a1bca0341d5cf47cc4a32ea66219c654 Mon Sep 17 00:00:00 2001
From: Thurloat <thurloat@gmail.com>
Date: Tue, 28 Aug 2018 19:48:03 -0300
Subject: [PATCH 04/10] add the behaviour, work on actually making it work.

---
 lib/pleroma/upload.ex             | 50 ++++++++++---------------------
 lib/pleroma/uploaders/local.ex    |  6 ++--
 lib/pleroma/uploaders/uploader.ex | 26 ++++++++++++++++
 3 files changed, 45 insertions(+), 37 deletions(-)
 create mode 100644 lib/pleroma/uploaders/uploader.ex

diff --git a/lib/pleroma/upload.ex b/lib/pleroma/upload.ex
index e786693ad..16149d4dd 100644
--- a/lib/pleroma/upload.ex
+++ b/lib/pleroma/upload.ex
@@ -1,11 +1,13 @@
 defmodule Pleroma.Upload do
   alias Ecto.UUID
+  import Logger
 
   @storage_backend Application.get_env(:pleroma, Pleroma.Upload)
                    |> Keyword.fetch!(:uploader)
 
   def store(%Plug.Upload{} = file, should_dedupe) do
     content_type = get_content_type(file.path)
+
     uuid = get_uuid(file, should_dedupe)
     name = get_name(file, uuid, content_type, should_dedupe)
 
@@ -26,23 +28,21 @@ defmodule Pleroma.Upload do
     }
   end
 
-  """
   # XXX: does this code actually work?  i am skeptical.  --kaniini
   def store(%{"img" => "data:image/" <> image_data}, should_dedupe) do
-    settings = Application.get_env(:pleroma, Pleroma.Upload)
-    use_s3 = Keyword.fetch!(settings, :use_s3)
-
     parsed = Regex.named_captures(~r/(?<filetype>jpeg|png|gif);base64,(?<data>.*)/, image_data)
     data = Base.decode64!(parsed["data"], ignore: :whitespace)
-    uuid = UUID.generate()
-    uuidpath = Path.join(upload_path(), uuid)
+
+    tmp_path = mkupload_for_image(data)
+
     uuid = UUID.generate()
 
-    File.mkdir_p!(upload_path())
+    # create temp local storage, like plug upload provides for us.
 
-    File.write!(uuidpath, data)
+    Logger.info(tmp_path)
 
-    content_type = get_content_type(uuidpath)
+    content_type = get_content_type(tmp_path)
+    strip_exif_data(content_type, tmp_path)
 
     name =
       create_name(
@@ -51,30 +51,7 @@ defmodule Pleroma.Upload do
         content_type
       )
 
-    upload_folder = get_upload_path(uuid, should_dedupe)
-    url_path = get_url(name, uuid, should_dedupe)
-
-    File.mkdir_p!(upload_folder)
-    result_file = Path.join(upload_folder, name)
-
-    if should_dedupe do
-      if !File.exists?(result_file) do
-        File.rename(uuidpath, result_file)
-      else
-        File.rm!(uuidpath)
-      end
-    else
-      File.rename(uuidpath, result_file)
-    end
-
-    strip_exif_data(content_type, result_file)
-
-    url_path =
-      if use_s3 do
-        put_s3_file(name, uuid, result_file, content_type)
-      else
-        url_path
-      end
+    url_path = @storage_backend.put_file(name, uuid, tmp_path, content_type, should_dedupe)
 
     %{
       "type" => "Image",
@@ -88,7 +65,12 @@ defmodule Pleroma.Upload do
       "name" => name
     }
   end
-  """
+
+  def mkupload_for_image(data) do
+    {:ok, tmp_path} = Plug.Upload.random_file("profile_pics")
+    :file.write_file(tmp_path, data, [:write, :raw, :exclusive, :binary])
+    tmp_path
+  end
 
   def strip_exif_data(content_type, file) do
     settings = Application.get_env(:pleroma, Pleroma.Upload)
diff --git a/lib/pleroma/uploaders/local.ex b/lib/pleroma/uploaders/local.ex
index b089c8f14..39dca49c9 100644
--- a/lib/pleroma/uploaders/local.ex
+++ b/lib/pleroma/uploaders/local.ex
@@ -3,7 +3,7 @@ defmodule Pleroma.Uploaders.Local do
 
   alias Pleroma.Web
 
-  def put_file(name, uuid, file, _content_type, should_dedupe) do
+  def put_file(name, uuid, tmpfile, _content_type, should_dedupe) do
     upload_folder = get_upload_path(uuid, should_dedupe)
     url_path = get_url(name, uuid, should_dedupe)
 
@@ -12,9 +12,9 @@ defmodule Pleroma.Uploaders.Local do
     result_file = Path.join(upload_folder, name)
 
     if File.exists?(result_file) do
-      File.rm!(file.path)
+      File.rm!(tmpfile)
     else
-      File.cp!(file.path, result_file)
+      File.cp!(tmpfile, result_file)
     end
 
     url_path
diff --git a/lib/pleroma/uploaders/uploader.ex b/lib/pleroma/uploaders/uploader.ex
new file mode 100644
index 000000000..7380320af
--- /dev/null
+++ b/lib/pleroma/uploaders/uploader.ex
@@ -0,0 +1,26 @@
+defmodule Pleroma.Uploaders.Uploader do
+  @moduledoc """
+  Defines the contract to put an uploaded file to any backend.
+  """
+
+  @doc """
+  Put a file to the backend.
+
+  Returns a `String.t` containing the path of the uploaded file.
+  """
+  @callback put_file(
+              name :: String.t(),
+              uuid :: String.t(),
+              file :: File.t(),
+              content_type :: String.t(),
+              should_dedupe :: Boolean.t()
+            ) :: String.t()
+
+  @callback put_file(
+              name :: String.t(),
+              uuid :: String.t(),
+              image_data :: String.t(),
+              content_type :: String.t(),
+              should_dedupe :: String.t()
+            ) :: String.t()
+end

From 9fc20ed5720bccb77289ce3d6eb9bc3a69ceeb8a Mon Sep 17 00:00:00 2001
From: Thurloat <thurloat@gmail.com>
Date: Tue, 28 Aug 2018 20:04:26 -0300
Subject: [PATCH 05/10] works now, tested with profile photo upload on local
 backend.

---
 lib/pleroma/upload.ex | 15 ++++++---------
 1 file changed, 6 insertions(+), 9 deletions(-)

diff --git a/lib/pleroma/upload.ex b/lib/pleroma/upload.ex
index 16149d4dd..b70758dc7 100644
--- a/lib/pleroma/upload.ex
+++ b/lib/pleroma/upload.ex
@@ -1,6 +1,5 @@
 defmodule Pleroma.Upload do
   alias Ecto.UUID
-  import Logger
 
   @storage_backend Application.get_env(:pleroma, Pleroma.Upload)
                    |> Keyword.fetch!(:uploader)
@@ -28,19 +27,15 @@ defmodule Pleroma.Upload do
     }
   end
 
-  # XXX: does this code actually work?  i am skeptical.  --kaniini
   def store(%{"img" => "data:image/" <> image_data}, should_dedupe) do
     parsed = Regex.named_captures(~r/(?<filetype>jpeg|png|gif);base64,(?<data>.*)/, image_data)
     data = Base.decode64!(parsed["data"], ignore: :whitespace)
 
-    tmp_path = mkupload_for_image(data)
+    # create temp local storage, like plug upload provides.
+    tmp_path = tempfile_for_image(data)
 
     uuid = UUID.generate()
 
-    # create temp local storage, like plug upload provides for us.
-
-    Logger.info(tmp_path)
-
     content_type = get_content_type(tmp_path)
     strip_exif_data(content_type, tmp_path)
 
@@ -66,9 +61,11 @@ defmodule Pleroma.Upload do
     }
   end
 
-  def mkupload_for_image(data) do
+  def tempfile_for_image(data) do
     {:ok, tmp_path} = Plug.Upload.random_file("profile_pics")
-    :file.write_file(tmp_path, data, [:write, :raw, :exclusive, :binary])
+    {:ok, tmp_file} = File.open(tmp_path, [:write, :raw, :binary])
+    IO.binwrite(tmp_file, data)
+
     tmp_path
   end
 

From 2ff25ac0ceb98f2ee1c803aeb8aecc112e335877 Mon Sep 17 00:00:00 2001
From: Thurloat <thurloat@gmail.com>
Date: Tue, 28 Aug 2018 22:32:24 -0300
Subject: [PATCH 06/10] A hobbldey-working swift client.

apparently, all elixir openstack libraries are trash
luckily, the APIs are stupid easy.
---
 lib/pleroma/upload.ex                   |  2 +-
 lib/pleroma/uploaders/swift.ex          |  1 -
 lib/pleroma/uploaders/swift/keystone.ex | 48 +++++++++++++++++++++++++
 lib/pleroma/uploaders/swift/swift.ex    | 30 ++++++++++++++++
 lib/pleroma/uploaders/swift/uploader.ex | 15 ++++++++
 5 files changed, 94 insertions(+), 2 deletions(-)
 delete mode 100644 lib/pleroma/uploaders/swift.ex
 create mode 100644 lib/pleroma/uploaders/swift/keystone.ex
 create mode 100644 lib/pleroma/uploaders/swift/swift.ex
 create mode 100644 lib/pleroma/uploaders/swift/uploader.ex

diff --git a/lib/pleroma/upload.ex b/lib/pleroma/upload.ex
index b70758dc7..7d3b36287 100644
--- a/lib/pleroma/upload.ex
+++ b/lib/pleroma/upload.ex
@@ -12,7 +12,7 @@ defmodule Pleroma.Upload do
 
     strip_exif_data(content_type, file.path)
 
-    url_path = @storage_backend.put_file(name, uuid, file, content_type, should_dedupe)
+    url_path = @storage_backend.put_file(name, uuid, file.path, content_type, should_dedupe)
 
     %{
       "type" => "Document",
diff --git a/lib/pleroma/uploaders/swift.ex b/lib/pleroma/uploaders/swift.ex
deleted file mode 100644
index 8b1378917..000000000
--- a/lib/pleroma/uploaders/swift.ex
+++ /dev/null
@@ -1 +0,0 @@
-
diff --git a/lib/pleroma/uploaders/swift/keystone.ex b/lib/pleroma/uploaders/swift/keystone.ex
new file mode 100644
index 000000000..a79214319
--- /dev/null
+++ b/lib/pleroma/uploaders/swift/keystone.ex
@@ -0,0 +1,48 @@
+defmodule Pleroma.Uploaders.Swift.Keystone do
+  use HTTPoison.Base
+
+  @settings Application.get_env(:pleroma, Pleroma.Uploaders.Swift)
+
+  def process_url(url) do
+    Enum.join(
+      [Keyword.fetch!(@settings, :auth_url), url],
+      "/"
+    )
+  end
+
+  def process_response_body(body) do
+    body
+    |> Poison.decode!()
+  end
+
+  def get_token() do
+    username = Keyword.fetch!(@settings, :username)
+    password = Keyword.fetch!(@settings, :password)
+    tenant_id = Keyword.fetch!(@settings, :tenant_id)
+
+    case post(
+           "/tokens",
+           make_auth_body(username, password, tenant_id),
+           ["Content-Type": "application/json"],
+           hackney: [:insecure]
+         ) do
+      {:ok, %HTTPoison.Response{status_code: 200, body: body}} ->
+        body["access"]["token"]["id"]
+
+      {:ok, %HTTPoison.Response{status_code: _}} ->
+        ""
+    end
+  end
+
+  def make_auth_body(username, password, tenant) do
+    Poison.encode!(%{
+      :auth => %{
+        :passwordCredentials => %{
+          :username => username,
+          :password => password
+        },
+        :tenantId => tenant
+      }
+    })
+  end
+end
diff --git a/lib/pleroma/uploaders/swift/swift.ex b/lib/pleroma/uploaders/swift/swift.ex
new file mode 100644
index 000000000..4f45255f1
--- /dev/null
+++ b/lib/pleroma/uploaders/swift/swift.ex
@@ -0,0 +1,30 @@
+defmodule Pleroma.Uploaders.Swift.Client do
+  use HTTPoison.Base
+
+  @settings Application.get_env(:pleroma, Pleroma.Uploaders.Swift)
+
+  def process_url(url) do
+    Enum.join(
+      [Keyword.fetch!(@settings, :storage_url), url],
+      "/"
+    )
+  end
+
+  def upload_file(filename, body, content_type) do
+    token = Pleroma.Uploaders.Swift.Keystone.get_token()
+
+    case put("#{filename}", body, "X-Auth-Token": token, "Content-Type": content_type) do
+      {:ok, %HTTPoison.Response{status_code: 201}} ->
+        # lgtm
+        ""
+
+      {:ok, %HTTPoison.Response{status_code: 401}} ->
+        # bad token
+        ""
+
+      {:error, _} ->
+        # bad news
+        ""
+    end
+  end
+end
diff --git a/lib/pleroma/uploaders/swift/uploader.ex b/lib/pleroma/uploaders/swift/uploader.ex
new file mode 100644
index 000000000..c71808c2d
--- /dev/null
+++ b/lib/pleroma/uploaders/swift/uploader.ex
@@ -0,0 +1,15 @@
+defmodule Pleroma.Uploaders.Swift do
+  @behaviour Pleroma.Uploaders.Uploader
+
+  @settings Application.get_env(:pleroma, Pleroma.Uploaders.Swift)
+
+  def put_file(name, uuid, tmp_path, content_type, _should_dedupe) do
+    {:ok, file_data} = File.read(tmp_path)
+    remote_name = "#{uuid}/#{name}"
+
+    Pleroma.Uploaders.Swift.Client.upload_file(remote_name, file_data, content_type)
+
+    object_url = Keyword.fetch!(@settings, :object_url)
+    "#{object_url}/#{remote_name}"
+  end
+end

From ab9e5d64d6dc6911dadac7219d38f3749971f53c Mon Sep 17 00:00:00 2001
From: Thurloat <thurloat@gmail.com>
Date: Tue, 28 Aug 2018 22:39:33 -0300
Subject: [PATCH 07/10] add a sample swift config

---
 lib/mix/tasks/sample_config.eex | 18 ++++++++++++++++++
 1 file changed, 18 insertions(+)

diff --git a/lib/mix/tasks/sample_config.eex b/lib/mix/tasks/sample_config.eex
index 2acf35ed9..3b4953cda 100644
--- a/lib/mix/tasks/sample_config.eex
+++ b/lib/mix/tasks/sample_config.eex
@@ -44,3 +44,21 @@ config :pleroma, Pleroma.Repo,
 # For using third-party S3 clones like wasabi, also do:
 # config :ex_aws, :s3,
 #   host: "s3.wasabisys.com"
+
+
+# Configure Openstack Swift support if desired.
+# 
+# Many openstack deployments are different, so config is left very open with 
+# no assumptions made on which provider you're using. This should allow very 
+# wide support without needing separate handlers for OVH, Rackspace, etc.
+#
+# config :pleroma, Pleroma.Uploaders.Swift,
+#  container: "some-container",
+#  username: "api-username-yyyy",
+#  password: "api-key-xxxx",
+#  tenant_id: "<openstack-project/tenant-id>",
+#  auth_url: "https://keystone-endpoint.provider.com",
+#  storage_url: "https://swift-endpoint.prodider.com/v1/AUTH_<tenant>/<container>",
+#  object_url: "https://cdn-endpoint.provider.com/<container>"
+#
+

From d424e9fa5f3d0d1ff9e416f6bf548e0e8bb02361 Mon Sep 17 00:00:00 2001
From: Thurloat <thurloat@gmail.com>
Date: Tue, 28 Aug 2018 23:49:23 -0300
Subject: [PATCH 08/10] fix S3 ref in sample config to generate proper path.

---
 lib/mix/tasks/sample_config.eex | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/lib/mix/tasks/sample_config.eex b/lib/mix/tasks/sample_config.eex
index 3b4953cda..3881ead26 100644
--- a/lib/mix/tasks/sample_config.eex
+++ b/lib/mix/tasks/sample_config.eex
@@ -29,8 +29,7 @@ config :pleroma, Pleroma.Repo,
 # The public S3 endpoint is different depending on region and provider,
 # consult your S3 provider's documentation for details on what to use.
 #
-# config :pleroma, Pleroma.Upload,
-#   use_s3: true,
+# config :pleroma, Pleroma.Uploaders.S3,
 #   bucket: "some-bucket",
 #   public_endpoint: "https://s3.amazonaws.com"
 #

From af01f0196a43454728f6e0ca8b9b8be208743251 Mon Sep 17 00:00:00 2001
From: Thurloat <thurloat@gmail.com>
Date: Wed, 29 Aug 2018 22:07:28 -0300
Subject: [PATCH 09/10] Add backend failure handling with :ok | :error so the
 uploader can handle it.

defaulting to :ok, since that's the currently level of error handling.
---
 lib/pleroma/upload.ex                   | 10 +++++++---
 lib/pleroma/uploaders/local.ex          |  2 +-
 lib/pleroma/uploaders/s3.ex             |  2 +-
 lib/pleroma/uploaders/swift/swift.ex    | 10 ++++------
 lib/pleroma/uploaders/swift/uploader.ex |  5 -----
 lib/pleroma/uploaders/uploader.ex       | 10 +---------
 6 files changed, 14 insertions(+), 25 deletions(-)

diff --git a/lib/pleroma/upload.ex b/lib/pleroma/upload.ex
index 7d3b36287..f188a5f32 100644
--- a/lib/pleroma/upload.ex
+++ b/lib/pleroma/upload.ex
@@ -12,7 +12,8 @@ defmodule Pleroma.Upload do
 
     strip_exif_data(content_type, file.path)
 
-    url_path = @storage_backend.put_file(name, uuid, file.path, content_type, should_dedupe)
+    {:ok, url_path} =
+      @storage_backend.put_file(name, uuid, file.path, content_type, should_dedupe)
 
     %{
       "type" => "Document",
@@ -31,7 +32,6 @@ defmodule Pleroma.Upload do
     parsed = Regex.named_captures(~r/(?<filetype>jpeg|png|gif);base64,(?<data>.*)/, image_data)
     data = Base.decode64!(parsed["data"], ignore: :whitespace)
 
-    # create temp local storage, like plug upload provides.
     tmp_path = tempfile_for_image(data)
 
     uuid = UUID.generate()
@@ -46,7 +46,7 @@ defmodule Pleroma.Upload do
         content_type
       )
 
-    url_path = @storage_backend.put_file(name, uuid, tmp_path, content_type, should_dedupe)
+    {:ok, url_path} = @storage_backend.put_file(name, uuid, tmp_path, content_type, should_dedupe)
 
     %{
       "type" => "Image",
@@ -61,6 +61,10 @@ defmodule Pleroma.Upload do
     }
   end
 
+  @doc """
+  Creates a tempfile using the Plug.Upload Genserver which cleans them up 
+  automatically.
+  """
   def tempfile_for_image(data) do
     {:ok, tmp_path} = Plug.Upload.random_file("profile_pics")
     {:ok, tmp_file} = File.open(tmp_path, [:write, :raw, :binary])
diff --git a/lib/pleroma/uploaders/local.ex b/lib/pleroma/uploaders/local.ex
index 39dca49c9..d4624661f 100644
--- a/lib/pleroma/uploaders/local.ex
+++ b/lib/pleroma/uploaders/local.ex
@@ -17,7 +17,7 @@ defmodule Pleroma.Uploaders.Local do
       File.cp!(tmpfile, result_file)
     end
 
-    url_path
+    {:ok, url_path}
   end
 
   def upload_path do
diff --git a/lib/pleroma/uploaders/s3.ex b/lib/pleroma/uploaders/s3.ex
index e18deb6b3..ce0ed3e34 100644
--- a/lib/pleroma/uploaders/s3.ex
+++ b/lib/pleroma/uploaders/s3.ex
@@ -19,6 +19,6 @@ defmodule Pleroma.Uploaders.S3 do
       ])
       |> ExAws.request()
 
-    "#{public_endpoint}/#{bucket}/#{s3_name}"
+    {:ok, "#{public_endpoint}/#{bucket}/#{s3_name}"}
   end
 end
diff --git a/lib/pleroma/uploaders/swift/swift.ex b/lib/pleroma/uploaders/swift/swift.ex
index 4f45255f1..819dfebda 100644
--- a/lib/pleroma/uploaders/swift/swift.ex
+++ b/lib/pleroma/uploaders/swift/swift.ex
@@ -11,20 +11,18 @@ defmodule Pleroma.Uploaders.Swift.Client do
   end
 
   def upload_file(filename, body, content_type) do
+    object_url = Keyword.fetch!(@settings, :object_url)
     token = Pleroma.Uploaders.Swift.Keystone.get_token()
 
     case put("#{filename}", body, "X-Auth-Token": token, "Content-Type": content_type) do
       {:ok, %HTTPoison.Response{status_code: 201}} ->
-        # lgtm
-        ""
+        {:ok, "#{object_url}/#{filename}"}
 
       {:ok, %HTTPoison.Response{status_code: 401}} ->
-        # bad token
-        ""
+        {:error, "Unauthorized, Bad Token"}
 
       {:error, _} ->
-        # bad news
-        ""
+        {:error, "Swift Upload Error"}
     end
   end
 end
diff --git a/lib/pleroma/uploaders/swift/uploader.ex b/lib/pleroma/uploaders/swift/uploader.ex
index c71808c2d..794f76cb0 100644
--- a/lib/pleroma/uploaders/swift/uploader.ex
+++ b/lib/pleroma/uploaders/swift/uploader.ex
@@ -1,15 +1,10 @@
 defmodule Pleroma.Uploaders.Swift do
   @behaviour Pleroma.Uploaders.Uploader
 
-  @settings Application.get_env(:pleroma, Pleroma.Uploaders.Swift)
-
   def put_file(name, uuid, tmp_path, content_type, _should_dedupe) do
     {:ok, file_data} = File.read(tmp_path)
     remote_name = "#{uuid}/#{name}"
 
     Pleroma.Uploaders.Swift.Client.upload_file(remote_name, file_data, content_type)
-
-    object_url = Keyword.fetch!(@settings, :object_url)
-    "#{object_url}/#{remote_name}"
   end
 end
diff --git a/lib/pleroma/uploaders/uploader.ex b/lib/pleroma/uploaders/uploader.ex
index 7380320af..19bea77dc 100644
--- a/lib/pleroma/uploaders/uploader.ex
+++ b/lib/pleroma/uploaders/uploader.ex
@@ -14,13 +14,5 @@ defmodule Pleroma.Uploaders.Uploader do
               file :: File.t(),
               content_type :: String.t(),
               should_dedupe :: Boolean.t()
-            ) :: String.t()
-
-  @callback put_file(
-              name :: String.t(),
-              uuid :: String.t(),
-              image_data :: String.t(),
-              content_type :: String.t(),
-              should_dedupe :: String.t()
-            ) :: String.t()
+            ) :: {:ok, String.t()} | {:error, String.t()}
 end

From adffad55028a8c43a6f2fcf43376009a43c25cf7 Mon Sep 17 00:00:00 2001
From: Thurloat <thurloat@gmail.com>
Date: Thu, 30 Aug 2018 09:20:29 -0300
Subject: [PATCH 10/10] increase uploader behaviour documentation accuracy.

---
 lib/pleroma/uploaders/uploader.ex | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/lib/pleroma/uploaders/uploader.ex b/lib/pleroma/uploaders/uploader.ex
index 19bea77dc..b58fc6d71 100644
--- a/lib/pleroma/uploaders/uploader.ex
+++ b/lib/pleroma/uploaders/uploader.ex
@@ -6,7 +6,9 @@ defmodule Pleroma.Uploaders.Uploader do
   @doc """
   Put a file to the backend.
 
-  Returns a `String.t` containing the path of the uploaded file.
+  Returns `{:ok, String.t } | {:error, String.t} containing the path of the 
+  uploaded file, or error information if the file failed to be saved to the 
+  respective backend.
   """
   @callback put_file(
               name :: String.t(),