login: Set cookie

1 files changed, 36 insertions, 0 deletions

diff --git a/http_handle_login.go b/http_handle_login.go
index 9e859c2..6f98859 100644
--- a/http_handle_login.go
+++ b/http_handle_login.go
@@ -1,9 +1,12 @@
 package main
 
 import (
+	"crypto/rand"
+	"encoding/base64"
 	"errors"
 	"fmt"
 	"net/http"
+	"time"
 
 	"github.com/alexedwards/argon2id"
 	"github.com/jackc/pgx/v5"
@@ -53,4 +56,37 @@ func handle_login(w http.ResponseWriter, r *http.Request, params map[string]any)
 		return
 	}
 
+	cookie_value, err := random_urlsafe_string(16)
+	now := time.Now()
+	expiry := now.Add(time.Duration(config.HTTP.CookieExpiry) * time.Second)
+
+	cookie := http.Cookie{
+		Name:     "session",
+		Value:    cookie_value,
+		SameSite: http.SameSiteLaxMode,
+		HttpOnly: true,
+		Secure:   false, // TODO
+		Expires:  expiry,
+		Path:     "/",
+		// TODO: Expire
+	}
+
+	http.SetCookie(w, &cookie)
+
+	_, err = database.Exec(r.Context(), "INSERT INTO sessions (user_id, session_id) VALUES ($1, $2)", user_id, cookie_value)
+	if err != nil {
+		fmt.Fprintln(w, "Error inserting session:", err.Error())
+		return
+	}
+
+	http.Redirect(w, r, "/", http.StatusSeeOther)
+}
+
+func random_urlsafe_string(sz int) (string, error) {
+	r := make([]byte, 3*sz)
+	_, err := rand.Read(r)
+	if err != nil {
+		return "", fmt.Errorf("error generating random string: %w", err)
+	}
+	return base64.RawURLEncoding.EncodeToString(r), nil
 }