CHANGE: added encrypted password auth, TODO: add change and add passwd functions

DB/initdb/01_create_tables.sql

@@ -34,6 +34,34 @@ CREATE TABLE "personal_daten" (
 );
 COMMENT ON COLUMN "personal_daten"."geschlecht" IS '1==weiblich, 2==maennlich, 3==divers';
 
+DROP TABLE IF EXISTS "user_password";
+CREATE TABLE "user_password" (
+    "personal_nummer" int4 NOT NULL PRIMARY KEY,
+    "pass_hash" TEXT,
+    "zuletzt_geandert" timestamp(6) DEFAULT CURRENT_TIMESTAMP
+);
+
+CREATE OR REPLACE FUNCTION update_zuletzt_geandert()
+RETURNS TRIGGER AS $$
+BEGIN
+    -- Nur wenn hash geändert wurde
+    IF NEW.pass_hash IS DISTINCT FROM OLD.pass_hash THEN
+        NEW.zuletzt_geandert = now();
+    END IF;
+    RETURN NEW;
+END;
+$$ LANGUAGE plpgsql;
+
+CREATE TRIGGER pass_hash_update
+BEFORE UPDATE ON user_password
+FOR EACH ROW
+EXECUTE FUNCTION update_zuletzt_geandert();
+
+-- Adds crypto extension
+
+CREATE EXTENSION IF NOT EXISTS pgcrypto;
+
+
 -- Insert into personal_daten
 
 INSERT INTO "personal_daten" ("personal_nummer", "aktiv_beschaeftigt", "vorname", "nachname", "geburtsdatum", "plz", "adresse", "geschlecht", "card_uid", "hauptbeschaeftigungs_ort", "arbeitszeit_per_tag", "arbeitszeit_min_start", "arbeitszeit_max_ende", "vorgesetzter_pers_nr") VALUES