feat(elixir:gsmlg): Add guardian.

Author: gsmlg

elixir/gsmlg_umbrella/apps/gsmlg/lib/gsmlg/guardian.ex

@@ -0,0 +1,28 @@
+defmodule GSMLG.Guardian do
+    use Guardian, otp_app: :gsmlg
+  
+    def subject_for_token(%{id: id}, _claims) do
+      # You can use any value for the subject of your token but
+      # it should be useful in retrieving the resource later, see
+      # how it being used on `resource_from_claims/1` function.
+      # A unique `id` is a good subject, a non-unique email address
+      # is a poor subject.
+      sub = to_string(id)
+      {:ok, sub}
+    end
+    def subject_for_token(_, _) do
+      {:error, :reason_for_error}
+    end
+  
+    def resource_from_claims(%{"sub" => id}) do
+      # Here we'll look up our resource from the claims, the subject can be
+      # found in the `"sub"` key. In above `subject_for_token/2` we returned
+      # the resource id so here we'll rely on that to look it up.
+      resource = GSMLG.Repo.get_resource_by_id(id)
+      {:ok, resource}
+    end
+    def resource_from_claims(_claims) do
+      {:error, :reason_for_error}
+    end
+  end
+  

elixir/gsmlg_umbrella/apps/gsmlg/mix.exs

@@ -45,6 +45,7 @@ defmodule GSMLG.MixProject do
       {:horde, github: "fmbraga/horde", tag: "585b1a57d195f3c3b0fec5992b5eedee8bc1b7e8"}, # temperally fix, wait for replace by production release
       {:swoosh, "~> 1.3"},
       {:absinthe, "~> 1.6"},
+      {:guardian, "~> 2.0"},
     ]
   end
 

elixir/gsmlg_umbrella/apps/gsmlg_web/lib/gsmlg_web/endpoint.ex

@@ -47,6 +47,9 @@ defmodule GSMLGWeb.Endpoint do
     pass: ["*/*"],
     json_decoder: Phoenix.json_library()
 
+  plug Guardian.Plug.VerifyHeader, key: :impersonate
+  plug Guardian.Plug.EnsureAuthenticated, key: :impersonate
+
   plug Plug.MethodOverride
   plug Plug.Head
   plug Plug.Session, @session_options

elixir/gsmlg_umbrella/apps/gsmlg_web/lib/gsmlg_web/router.ex

@@ -14,7 +14,7 @@ defmodule GSMLGWeb.Router do
     plug :accepts, ["json"]
   end
 
-  scope "/", GSMLGWeb do
+  scope "/admin", GSMLGWeb do
     pipe_through :browser
 
     get "/", PageController, :index

elixir/gsmlg_umbrella/config/config.exs

@@ -23,6 +23,10 @@ config :gsmlg,
 # at the `config/runtime.exs`.
 config :gsmlg, GSMLG.Mailer, adapter: Swoosh.Adapters.Local
 
+config :gsmlg, GSMLG.Guardian,
+       issuer: "gsmlg",
+       secret_key: "Secret key. You can use `mix guardian.gen.secret` to get one"
+
 # Swoosh API client is needed for adapters other than SMTP.
 config :swoosh, :api_client, false
 

elixir/gsmlg_umbrella/mix.lock

@@ -18,9 +18,11 @@
   "file_system": {:hex, :file_system, "0.2.10", "fb082005a9cd1711c05b5248710f8826b02d7d1784e7c3451f9c1231d4fc162d", [:mix], [], "hexpm", "41195edbfb562a593726eda3b3e8b103a309b733ad25f3d642ba49696bf715dc"},
   "floki": {:hex, :floki, "0.31.0", "f05ee8a8e6a3ced4e62beeb2c79a63bc8e12ab98fbaaf6e6a3d9b76b1278e23f", [:mix], [{:html_entities, "~> 0.5.0", [hex: :html_entities, repo: "hexpm", optional: false]}], "hexpm", "b05afa372f5c345a5bf240ac25ea1f0f3d5fcfd7490ac0beeb4a203f9444891e"},
   "gettext": {:hex, :gettext, "0.18.2", "7df3ea191bb56c0309c00a783334b288d08a879f53a7014341284635850a6e55", [:mix], [], "hexpm", "f9f537b13d4fdd30f3039d33cb80144c3aa1f8d9698e47d7bcbcc8df93b1f5c5"},
+  "guardian": {:hex, :guardian, "2.2.1", "5a4a949fd46eac79ef37f074ada7d1ef82e274bc99e335c286e042f5383f4f80", [:mix], [{:jose, "~> 1.8", [hex: :jose, repo: "hexpm", optional: false]}, {:plug, "~> 1.3.3 or ~> 1.4", [hex: :plug, repo: "hexpm", optional: true]}], "hexpm", "09b5c4d08f18524bd33ffe49617003cbca9f617237e23b5f42223cda61c5f052"},
   "horde": {:git, "https://github.com/fmbraga/horde.git", "585b1a57d195f3c3b0fec5992b5eedee8bc1b7e8", [tag: "585b1a57d195f3c3b0fec5992b5eedee8bc1b7e8"]},
   "html_entities": {:hex, :html_entities, "0.5.2", "9e47e70598da7de2a9ff6af8758399251db6dbb7eebe2b013f2bbd2515895c3c", [:mix], [], "hexpm", "c53ba390403485615623b9531e97696f076ed415e8d8058b1dbaa28181f4fdcc"},
   "jason": {:hex, :jason, "1.2.2", "ba43e3f2709fd1aa1dce90aaabfd039d000469c05c56f0b8e31978e03fa39052", [:mix], [{:decimal, "~> 1.0 or ~> 2.0", [hex: :decimal, repo: "hexpm", optional: true]}], "hexpm", "18a228f5f0058ee183f29f9eae0805c6e59d61c3b006760668d8d18ff0d12179"},
+  "jose": {:hex, :jose, "1.11.2", "f4c018ccf4fdce22c71e44d471f15f723cb3efab5d909ab2ba202b5bf35557b3", [:mix, :rebar3], [], "hexpm", "98143fbc48d55f3a18daba82d34fe48959d44538e9697c08f34200fa5f0947d2"},
   "libcluster": {:hex, :libcluster, "3.3.0", "f7d45ff56d88e9fb4c30aee662480cbab69ebc0e7f7da4ad8d01b1e4f7492da8", [:mix], [{:jason, "~> 1.1", [hex: :jason, repo: "hexpm", optional: false]}], "hexpm", "ecdcdc88334ec8eb18b10a13a1d5f22a3319a970b5b1e66cfe71c7719a4ab6cc"},
   "libring": {:hex, :libring, "1.5.0", "44313eb6862f5c9168594a061e9d5f556a9819da7c6444706a9e2da533396d70", [:mix], [], "hexpm", "04e843d4fdcff49a62d8e03778d17c6cb2a03fe2d14020d3825a1761b55bd6cc"},
   "merkle_map": {:hex, :merkle_map, "0.2.1", "01a88c87a6b9fb594c67c17ebaf047ee55ffa34e74297aa583ed87148006c4c8", [:mix], [], "hexpm", "fed4d143a5c8166eee4fa2b49564f3c4eace9cb252f0a82c1613bba905b2d04d"},