Add shared auth and identity APIs

config/config.exs

@@ -5,6 +5,10 @@ config :postgrex, :json_library, JSON
 config :parrhesia,
   moderation_cache_enabled: true,
   relay_url: "ws://localhost:4413/relay",
+  identity: [
+    path: nil,
+    private_key: nil
+  ],
   limits: [
     max_frame_bytes: 1_048_576,
     max_event_bytes: 262_144,

config/runtime.exs

@@ -451,6 +451,10 @@ if config_env() == :prod do
 
   config :parrhesia,
     relay_url: string_env.("PARRHESIA_RELAY_URL", relay_url_default),
+    identity: [
+      path: string_env.("PARRHESIA_IDENTITY_PATH", nil),
+      private_key: string_env.("PARRHESIA_IDENTITY_PRIVATE_KEY", nil)
+    ],
     moderation_cache_enabled:
       bool_env.("PARRHESIA_MODERATION_CACHE_ENABLED", moderation_cache_enabled_default),
     enable_expiration_worker:

config/test.exs

@@ -15,6 +15,10 @@ config :parrhesia, Parrhesia.Web.Endpoint,
 config :parrhesia,
   enable_expiration_worker: false,
   moderation_cache_enabled: false,
+  identity: [
+    path: Path.join(System.tmp_dir!(), "parrhesia_test_identity.json"),
+    private_key: nil
+  ],
   features: [verify_event_signatures: false]
 
 pg_host = System.get_env("PGHOST")