Added Login and Register handlers for actix backend

backend-actix/migrations/2022-03-19-191822_initial/down.sql

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+-- This file should undo anything in `up.sql`
+
+drop table gamenight;
+drop table known_games;

backend-actix/migrations/2022-03-19-191822_initial/up.sql

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+-- Your SQL goes here
+
+CREATE TABLE gamenight (
+    id UUID NOT NULL PRIMARY KEY,
+    name VARCHAR NOT NULL,
+    datetime VARCHAR NOT NULL
+);
+
+CREATE TABLE known_games (
+    id UUID NOT NULL PRIMARY KEY,
+    name VARCHAR UNIQUE NOT NULL
+);

backend-actix/migrations/2022-04-17-175115_user-system/down.sql

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+-- This file should undo anything in `up.sql`
+
+drop table pwd;
+drop table users;
+
+drop type Role;

backend-actix/migrations/2022-04-17-175115_user-system/up.sql

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+CREATE TYPE Role AS ENUM ('user', 'admin');
+
+CREATE TABLE users (
+    id UUID NOT NULL PRIMARY KEY,
+    username VARCHAR UNIQUE NOT NULL,
+    email VARCHAR UNIQUE NOT NULL,
+    role Role NOT NULL
+);
+
+CREATE TABLE pwd (
+    user_id UUID NOT NULL PRIMARY KEY,
+    password VARCHAR NOT NULL,
+    CONSTRAINT FK_UserId FOREIGN KEY (user_id) REFERENCES users(id) ON DELETE CASCADE
+);
+
+--Initialize default admin user, with password "gamenight!"
+CREATE EXTENSION IF NOT EXISTS "uuid-ossp";
+DO $$
+DECLARE 
+    admin_uuid uuid = uuid_generate_v4();
+BEGIN
+    INSERT INTO users (id, username, email, role)
+    values(admin_uuid, 'admin', '', 'admin');
+
+    insert INTO pwd (user_id, password)
+    values(admin_uuid, '$argon2id$v=19$m=4096,t=3,p=1$zEdUjCAnZqd8DziYWzlFHw$YBLQhKvYIZBY43B8zM6hyBvLKuqTeh0EM5pKOfbWQSI');
+END $$;
+

backend-actix/migrations/2022-05-14-104118_gamenight_owners/down.sql

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+-- This file should undo anything in `up.sql`
+
+ALTER TABLE gamenight
+DROP COLUMN owner_id;

backend-actix/migrations/2022-05-14-104118_gamenight_owners/up.sql

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+ALTER TABLE gamenight RENAME TO _gamenight_old;
+
+CREATE TABLE gamenight (
+    id UUID NOT NULL PRIMARY KEY,
+    name VARCHAR NOT NULL,
+    datetime VARCHAR NOT NULL,
+    owner_id UUID NOT NULL,
+    CONSTRAINT FK_OwnerId FOREIGN KEY (owner_id) REFERENCES users(id) ON DELETE CASCADE
+);
+
+SET session_replication_role = 'replica';
+
+INSERT INTO gamenight (id, name, datetime, owner_id)
+select id, name, datetime, '00000000-0000-0000-0000-000000000000'
+FROM _gamenight_old;
+
+drop table _gamenight_old;
+
+SET session_replication_role = 'origin';

backend-actix/migrations/2022-05-27-183310_gamenight_gamelist/down.sql

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+-- This file should undo anything in `up.sql`
+
+drop table gamenight_gamelist;

backend-actix/migrations/2022-05-27-183310_gamenight_gamelist/up.sql

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+-- Your SQL goes here
+
+create table gamenight_gamelist (
+    gamenight_id UUID NOT NULL,
+    game_id UUID NOT NULL,
+    CONSTRAINT FK_gamenight_id FOREIGN KEY (gamenight_id) REFERENCES gamenight(id) ON DELETE CASCADE,
+    CONSTRAINT FK_game_id FOREIGN KEY (game_id) REFERENCES known_games(id) ON DELETE CASCADE,
+    PRIMARY KEY(gamenight_id, game_id)
+);

backend-actix/migrations/2022-05-28-142526_gamenight participants/down.sql

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+-- This file should undo anything in `up.sql`
+
+drop table gamenight_participants;

backend-actix/migrations/2022-05-28-142526_gamenight participants/up.sql

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+-- Your SQL goes here
+
+create table gamenight_participants (
+    gamenight_id UUID NOT NULL,
+    user_id UUID NOT NULL,
+    CONSTRAINT FK_gamenight_id FOREIGN KEY (gamenight_id) REFERENCES gamenight(id) ON DELETE CASCADE,
+    CONSTRAINT FK_user_id FOREIGN KEY (user_id) REFERENCES users(id) ON DELETE CASCADE,
+    PRIMARY KEY(gamenight_id, user_id)
+)

backend-actix/migrations/2022-06-04-141858_registration_tokens/down.sql

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+-- This file should undo anything in `up.sql`
+
+drop table registration_tokens;
+
+ALTER TABLE gamenight
+ALTER datetime TYPE VARCHAR;

backend-actix/migrations/2022-06-04-141858_registration_tokens/up.sql

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+-- Your SQL goes here
+
+create table registration_tokens (
+    id UUID PRIMARY KEY,
+    token CHARACTER(32) NOT NULL,
+    single_use BOOLEAN NOT NULL,
+    expires TIMESTAMPTZ
+);
+
+ALTER TABLE gamenight
+ALTER datetime TYPE TIMESTAMPTZ using datetime::timestamp;