Feat: session db methods and try at tx

Makefile

@@ -39,3 +39,6 @@ migrate-up:
 
 migrate-down:
 	migrate -database 'sqlite3://gralias.db' -path migrations down
+
+install-migrate:
+	go install -tags 'sqlite3' github.com/golang-migrate/migrate/v4/cmd/migrate@latest

handlers/auth.go

@@ -12,7 +12,6 @@ import (
 	"html/template"
 	"net/http"
 	"strings"
-	"time"
 )
 
 func abortWithError(w http.ResponseWriter, msg string) {
@@ -142,11 +141,12 @@ func makeCookie(username string, remote string) (*http.Cookie, error) {
 	// Create a new random session token
 	// sessionToken := xid.New().String()
 	sessionToken := "sessionprefix_" + username
-	expiresAt := time.Now().Add(time.Duration(cfg.SessionLifetime) * time.Second)
+	// expiresAt := time.Now().Add(time.Duration(cfg.SessionLifetime) * time.Second)
 	// Set the token in the session map, along with the session information
 	session := &models.Session{
 		Username:    username,
-		Expiry:   expiresAt,
+		CookieToken: sessionToken,
+		Lifetime:    uint32(cfg.SessionLifetime / 60),
 	}
 	cookieName := "session_token"
 	// hmac to protect cookies

handlers/timer.go

@@ -21,15 +21,12 @@ var (
 func StartTurnTimer(roomID string, duration time.Duration) {
 	mu.Lock()
 	defer mu.Unlock()
-
 	if _, exists := timers[roomID]; exists {
 		return // Timer already running
 	}
-
 	ticker := time.NewTicker(1 * time.Second)
 	done := make(chan bool)
 	timers[roomID] = &roomTimer{ticker: ticker, done: done}
-
 	go func() {
 		for {
 			select {

migrations/001_initial_schema.up.sql

@@ -20,7 +20,7 @@ CREATE TABLE rooms (
 CREATE TABLE players (
     id INTEGER PRIMARY KEY AUTOINCREMENT,
     room_id TEXT, -- nullable
-    username TEXT NOT NULL,
+    username TEXT NOT NULL UNIQUE,
     team TEXT NOT NULL DEFAULT '', -- 'red' or 'blue'
     role TEXT NOT NULL DEFAULT '', -- 'guesser' or 'mime'
     is_bot BOOLEAN NOT NULL DEFAULT FALSE,
@@ -67,3 +67,12 @@ CREATE TABLE settings (
     created_at TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP,
     FOREIGN KEY (room_id) REFERENCES rooms(id)
 );
+
+CREATE TABLE sessions(
+    id INTEGER PRIMARY KEY AUTOINCREMENT,
+    updated_at TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP,
+    lifetime INTEGER NOT NULL DEFAULT 3600,
+    cookie_token TEXT NOT NULL DEFAULT '', -- encoded value
+    username TEXT NOT NULL,
+    FOREIGN KEY (username) REFERENCES players(username)
+);

models/auth.go

@@ -6,20 +6,25 @@ import (
 
 // each session contains the username of the user and the time at which it expires
 type Session struct {
-	Username    string
+	ID uint32
-	CurrentRoom string
+	// CurrentRoom string
-	Expiry      time.Time
+	// Expiry      time.Time
+	UpdatedAt   time.Time
+	Lifetime    uint32 // minutes
+	CookieToken string
+	Username    string // username is playerid
 }
 
 // we'll use this method later to determine if the session has expired
 func (s Session) IsExpired() bool {
-	return s.Expiry.Before(time.Now())
+	return time.Now().After(s.UpdatedAt.Add(time.Minute * time.Duration(s.Lifetime)))
+	// return s.Expiry.Before(time.Now())
 }
 
-func ListUsernames(ss map[string]*Session) []string {
+// func ListUsernames(ss map[string]*Session) []string {
-	resp := make([]string, 0, len(ss))
+// 	resp := make([]string, 0, len(ss))
-	for _, s := range ss {
+// 	for _, s := range ss {
-		resp = append(resp, s.Username)
+// 		resp = append(resp, s.Username)
-	}
+// 	}
-	return resp
+// 	return resp
-}
+// }

repos/main.go

@@ -16,6 +16,7 @@ type AllRepos interface {
 
 type RepoProvider struct {
 	DB  *sqlx.DB
+	Ext sqlx.Ext
 }
 
 func NewRepoProvider(pathToDB string) *RepoProvider {

repos/session.go

@@ -0,0 +1,61 @@
+package repos
+
+import (
+	"context"
+	"gralias/models"
+	"time"
+
+	"github.com/jmoiron/sqlx"
+)
+
+type SessionsRepo interface {
+	SessionByToken(ctx context.Context, token string) (*models.Session, error)
+	SessionCreate(ctx context.Context, session *models.Session) error
+	SessionUpdate(ctx context.Context, session *models.Session) error
+	SessionDelete(ctx context.Context, token string) error
+}
+
+func (p *RepoProvider) SessionByToken(ctx context.Context, token string) (*models.Session, error) {
+	session := &models.Session{}
+	// The lifetime in the DB is in seconds, but in the model it is in minutes.
+	err := p.DB.GetContext(ctx, session, `SELECT id, updated_at, lifetime / 60 as lifetime, cookie_token, username FROM sessions WHERE cookie_token = ?`, token)
+	if err != nil {
+		return nil, err
+	}
+	return session, nil
+}
+
+func (p *RepoProvider) SessionCreate(ctx context.Context, session *models.Session) error {
+	p.Ext = p.DB
+	tx, ok := ctx.Value("sqltx").(*sqlx.Tx)
+	if ok && tx != nil {
+		// how to know if it is a final exec in chain?
+		// or is it better to commit outside?
+		tocommit, ok := ctx.Value("tocommit").(bool)
+		if ok && tocommit {
+			defer func() {
+				if err := tx.Commit(); err != nil {
+					// log
+					// return err
+				}
+			}()
+		}
+		p.Ext = tx
+	}
+	// The lifetime in the model is in minutes, but in the DB it is in seconds.
+	_, err := p.Ext.Exec(`INSERT INTO sessions (updated_at, lifetime, cookie_token, username) VALUES (?, ?, ?, ?)`,
+		time.Now(), session.Lifetime*60, session.CookieToken, session.Username)
+	return err
+}
+
+func (p *RepoProvider) SessionUpdate(ctx context.Context, session *models.Session) error {
+	// The lifetime in the model is in minutes, but in the DB it is in seconds.
+	_, err := p.DB.ExecContext(ctx, `UPDATE sessions SET updated_at = ?, lifetime = ? WHERE cookie_token = ?`,
+		time.Now(), session.Lifetime*60, session.CookieToken)
+	return err
+}
+
+func (p *RepoProvider) SessionDelete(ctx context.Context, token string) error {
+	_, err := p.DB.ExecContext(ctx, `DELETE FROM sessions WHERE cookie_token = ?`, token)
+	return err
+}

todos.md

@@ -1,4 +1,5 @@
 ### feats
+- implement the db methods for sessions in repos/session.go; +
 - auto close room if nothing is going on there (hmm) for ~1h; +
 - words database (file) load and form random 25 words; +
 - invite link; +