adding support for e621 auth

Adding e621_user and e621_apikey to docker compose, scrapers, and runtime as credentials are required for some posts on e621.net.

config/runtime.exs

@@ -25,6 +25,8 @@ config :philomena,
   image_file_root: System.fetch_env!("IMAGE_FILE_ROOT"),
   tumblr_api_key: System.fetch_env!("TUMBLR_API_KEY"),
   inkbunny_sid: System.fetch_env!("INKBUNNY_SID"),
+  e621_user: System.fetch_env!("E621_USER"),
+  e621_apikey: System.fetch_env!("E621_APIKEY"),
   otp_secret_key: System.fetch_env!("OTP_SECRET_KEY"),
   image_url_root: System.fetch_env!("IMAGE_URL_ROOT"),
   badge_url_root: System.fetch_env!("BADGE_URL_ROOT"),

docker-compose.yml

@@ -17,6 +17,8 @@ services:
       - PASSWORD_PEPPER=dn2e0EpZrvBLoxUM3gfQveBhjf0bG/6/bYhrOyq3L3hV9hdo/bimJ+irbDWsuXLP
       - TUMBLR_API_KEY=fuiKNFp9vQFvjLNvx4sUwti4Yb5yGutBN4Xh10LXZhhRKjWlV4
       - INKBUNNY_SID=4X88ktV7jxywp65Ng40ez1qTJd
+      - E621_USER=hexerade
+      - E621_APIKEY=merpmarp
       - OTP_SECRET_KEY=Wn7O/8DD+qxL0X4X7bvT90wOkVGcA90bIHww4twR03Ci//zq7PnMw8ypqyyT/b/C
       - ADVERT_FILE_ROOT=adverts
       - AVATAR_FILE_ROOT=avatars

lib/philomena/scrapers/e621.ex

@@ -7,7 +7,7 @@ defmodule Philomena.Scrapers.E621 do
   end
 
   def scrape(_uri, url) do
-    api_url = "#{url}.json"
+    api_url = "#{url}.json&login=#{e621_user()}&api_key=#{e621_apikey()}"
     {:ok, %Tesla.Env{status: 200, body: body}} = Philomena.Http.get(api_url)
 
     json = Jason.decode!(body)
@@ -39,4 +39,10 @@ defmodule Philomena.Scrapers.E621 do
       }]
     }
   end
+  defp e621_user do
+    Application.get_env(:philomena, :e621_user)
+  end
+  defp e621_apikey do
+    Application.get_env(:philomena, :e621_apikey)
+  end
 end