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breakpilot-lehrer/school-service/internal/middleware/parent_session.go
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Phase 9c: Parent accounts, magic-link login + parent timetable view
Backend (school-service):
  - parent_account, parent_child, parent_magic_link, parent_session
    tables. Tokens are sha256-hashed in DB; raw goes back exactly
    once to the inviting teacher.
  - InviteParent upserts the parent account, links a child to a tt_
    class, mints a 7-day magic link. Returns the link path so the
    teacher can paste it into Matrix/Email.
  - RedeemMagicLink validates + marks used + mints a 30-day session,
    sets HttpOnly bp_parent_session cookie.
  - ParentSessionMiddleware reads the cookie and resolves the parent.
    Lives in its own router group /api/v1/parent — totally separate
    from the teacher JWT path.
  - ParentMe returns the account + list of children (with class name).
  - ParentTimetable returns the latest completed tt_solution's lessons
    for the requested child's class, with full authorization check
    (parent must own a child in that class).

Frontend (studio-v2):
  - lib/calendar/subject-i18n.ts maps 22 German subject names to 8
    parent locales (de/en/tr/ar/uk/ru/pl/fr). Falls back to German
    for custom subjects.
  - ParentManager component on the Schulkalender page lets the teacher
    invite parents via email + child name + class + language. Newly
    minted magic-link is shown with a copy-to-clipboard button.
  - app/api/parent/[...path]/route.ts proxies parent-side endpoints
    via the cookie so HttpOnly survives the Next.js round-trip.
  - /eltern/login?token=… redeems and redirects to /eltern.
  - /eltern shows a Wochengrid with German days + translated subject
    names in the parent's preferred language. Headings and weekday
    labels also localised (de/en/tr/ar/uk/ru/pl/fr).

Tests:
  - 3 new Go unit tests (random token, hash stability, invite-request
    validator). 83 subtests gesamt.
  - studio-v2: e2e/eltern.spec.ts mit 7 tests across ParentManager,
    /eltern/login, /eltern overview, subject-i18n end-to-end.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
2026-05-22 11:50:35 +02:00

43 lines
1.4 KiB
Go

package middleware
import (
"context"
"net/http"
"github.com/gin-gonic/gin"
)
// ParentResolver is the minimum the middleware needs from the parent
// service. Defined as interface so handlers can pass their own service
// without import cycles.
type ParentResolver interface {
ParentFromSession(ctx context.Context, token string) (parent interface{}, err error)
}
// ParentSessionCookieName is the name of the HttpOnly cookie that carries
// the parent's session token after redeem. Exported so handlers can set it.
const ParentSessionCookieName = "bp_parent_session"
// ParentSessionMiddleware reads the parent session cookie and resolves it
// to a parent_account. Stores parent_id (string) in the Gin context for
// downstream handlers. Aborts with 401 if the cookie is missing or the
// session expired.
func ParentSessionMiddleware(resolve func(ctx context.Context, token string) (string, string, string, error)) gin.HandlerFunc {
return func(c *gin.Context) {
token, err := c.Cookie(ParentSessionCookieName)
if err != nil || token == "" {
c.AbortWithStatusJSON(http.StatusUnauthorized, gin.H{"error": "Parent session required"})
return
}
parentID, email, lang, err := resolve(c.Request.Context(), token)
if err != nil {
c.AbortWithStatusJSON(http.StatusUnauthorized, gin.H{"error": "Invalid or expired session"})
return
}
c.Set("parent_id", parentID)
c.Set("parent_email", email)
c.Set("parent_language", lang)
c.Next()
}
}