bvandeusen
2f2dfa86df
Verifies bcrypt password hash, mints a session token, stores its sha256 in the sessions table, and returns the token in both the response body (for Flutter) and an httpOnly/SameSite=Strict cookie (for the web SPA). Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
83 lines
2.4 KiB
Go
83 lines
2.4 KiB
Go
package api
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import (
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"encoding/json"
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"errors"
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"net/http"
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"time"
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"github.com/jackc/pgx/v5"
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"git.fabledsword.com/bvandeusen/minstrel/internal/auth"
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"git.fabledsword.com/bvandeusen/minstrel/internal/db/dbq"
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)
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// sessionCookieMaxAge is the cookie lifetime. Sessions don't auto-expire
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// server-side yet (future work); the cookie still caps browser-side lifetime
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// so an abandoned laptop doesn't stay logged in forever.
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const sessionCookieMaxAge = 30 * 24 * time.Hour
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func (h *handlers) handleLogin(w http.ResponseWriter, r *http.Request) {
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var req LoginRequest
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if err := json.NewDecoder(r.Body).Decode(&req); err != nil {
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writeErr(w, http.StatusBadRequest, "bad_request", "invalid JSON body")
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return
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}
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if req.Username == "" || req.Password == "" {
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writeErr(w, http.StatusBadRequest, "bad_request", "username and password required")
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return
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}
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q := dbq.New(h.pool)
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user, err := q.GetUserByUsername(r.Context(), req.Username)
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if err != nil {
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if errors.Is(err, pgx.ErrNoRows) {
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writeErr(w, http.StatusUnauthorized, "invalid_credentials", "invalid username or password")
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return
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}
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h.logger.Error("api: user lookup failed", "err", err)
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writeErr(w, http.StatusInternalServerError, "server_error", "lookup failed")
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return
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}
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if !auth.VerifyPassword(user.PasswordHash, req.Password) {
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writeErr(w, http.StatusUnauthorized, "invalid_credentials", "invalid username or password")
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return
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}
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token, err := auth.MintSessionToken()
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if err != nil {
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h.logger.Error("api: mint session token failed", "err", err)
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writeErr(w, http.StatusInternalServerError, "server_error", "mint failed")
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return
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}
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if _, err := q.InsertSession(r.Context(), dbq.InsertSessionParams{
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UserID: user.ID,
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TokenHash: auth.HashSessionToken(token),
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UserAgent: r.UserAgent(),
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}); err != nil {
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h.logger.Error("api: insert session failed", "err", err)
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writeErr(w, http.StatusInternalServerError, "server_error", "insert failed")
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return
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}
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http.SetCookie(w, &http.Cookie{
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Name: auth.SessionCookieName,
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Value: token,
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Path: "/",
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HttpOnly: true,
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Secure: r.TLS != nil, // dev over http stays functional; prod over https gets Secure
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SameSite: http.SameSiteStrictMode,
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MaxAge: int(sessionCookieMaxAge.Seconds()),
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})
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w.Header().Set("Content-Type", "application/json")
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_ = json.NewEncoder(w).Encode(LoginResponse{
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Token: token,
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User: UserView{
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ID: user.ID,
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Username: user.Username,
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IsAdmin: user.IsAdmin,
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},
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})
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}
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