Initial commit with user management

sql/00001.sql

@@ -0,0 +1,43 @@
+CREATE TABLE public.user (
+	id serial NOT NULL,
+	"name"     varchar NOT NULL,
+	"username" varchar NOT NULL,
+	"password" char(96) NOT NULL,
+	totp varchar NOT NULL,
+	last_login timestamp with time zone NOT NULL DEFAULT '1970-01-01 00:00:00',
+	CONSTRAINT user_pk PRIMARY KEY (id),
+	CONSTRAINT user_un UNIQUE (username)
+);
+
+CREATE TABLE public.session (
+	id         serial NOT NULL,
+	user_id    int4 NULL,
+	"uuid"     char(36) NOT NULL,
+	created    timestamp with time zone NOT NULL DEFAULT NOW(),
+	last_used  timestamp with time zone NOT NULL DEFAULT NOW(),
+	CONSTRAINT session_pk PRIMARY KEY (id),
+	CONSTRAINT session_un UNIQUE ("uuid"),
+	CONSTRAINT session_user_fk FOREIGN KEY (user_id) REFERENCES "user"(id) ON DELETE CASCADE ON UPDATE CASCADE
+);
+
+CREATE EXTENSION IF NOT EXISTS pgcrypto SCHEMA public;
+
+CREATE FUNCTION password_hash(salt_hex char(32), pass bytea)
+RETURNS char(96)
+LANGUAGE plpgsql
+AS
+$$
+BEGIN
+	RETURN (
+		SELECT
+			salt_hex ||
+			encode(
+				sha256(
+					decode(salt_hex, 'hex') || /* salt in binary */
+					pass                       /* password */
+				),
+				'hex'
+			)
+	);
+END;
+$$;