From cb21bf5fc225899ad6cf87f5ab0253506cf0531e Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Tristan=20Mah=C3=A9?= <gled@remote-shell.net>
Date: Tue, 26 Jun 2018 13:45:47 -0700
Subject: [PATCH] filter exif data #187

---
 config/config.exs     | 4 +++-
 lib/pleroma/upload.ex | 8 ++++++++
 mix.exs               | 3 ++-
 3 files changed, 13 insertions(+), 2 deletions(-)

diff --git a/config/config.exs b/config/config.exs
index cf6cbaa9d..fd9662aea 100644
--- a/config/config.exs
+++ b/config/config.exs
@@ -10,7 +10,9 @@
 
 config :pleroma, Pleroma.Repo, types: Pleroma.PostgresTypes
 
-config :pleroma, Pleroma.Upload, uploads: "uploads"
+config :pleroma, Pleroma.Upload, 
+  uploads: "uploads",
+  strip_exif: false
 
 # Configures the endpoint
 config :pleroma, Pleroma.Web.Endpoint,
diff --git a/lib/pleroma/upload.ex b/lib/pleroma/upload.ex
index 43df0d418..dee281f5b 100644
--- a/lib/pleroma/upload.ex
+++ b/lib/pleroma/upload.ex
@@ -80,6 +80,14 @@ def store(%{"img" => "data:image/" <> image_data}, should_dedupe) do
     }
   end
 
+  def strip_exif_data(file) do
+    settings = Application.get_env(:pleroma, Pleroma.Upload)
+    @do_strip = Keyword.fetch!(settings, :strip_exif)
+    if @do_strip == true do
+	Mogrify.open(file) |> Mogrify.custom("strip") |> Mogrify.save(in_place: true)	
+    end
+  end
+
   def upload_path do
     settings = Application.get_env(:pleroma, Pleroma.Upload)
     Keyword.fetch!(settings, :uploads)
diff --git a/mix.exs b/mix.exs
index 281687294..cc279a7f9 100644
--- a/mix.exs
+++ b/mix.exs
@@ -47,7 +47,8 @@ defp deps do
       {:jason, "~> 1.0"},
       {:ex_machina, "~> 2.0", only: :test},
       {:credo, "~> 0.7", only: [:dev, :test]},
-      {:mock, "~> 0.3.0", only: :test}
+      {:mock, "~> 0.3.0", only: :test},
+      {:mogrify, "~> 0.6.1"}
     ]
   end