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feat(PROJ-29): Tenant-Quotas & Usage-Limits

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- DB: max_storage_bytes, max_users, max_emails per Tenant (NULL = unlimited)
- storage/quota.go: CheckQuota() mit 60s-Cache, ErrQuotaExceeded
- Save() prüft Quota vor dem Schreiben — Ablehnung bei Hard-Limit
- tenantstore/quota.go: SetQuota(), GetQuota(), GetUsage()
- API: GET/PUT /api/admin/tenant/{id}/quota, GET /api/admin/quotas
- QuotaTab: Usage-Balken (Speicher/Nutzer/Mails), Edit-Dialog, Warnung ab 80%
- InvalidateQuotaCache() nach Quota-Änderung für sofortige Wirkung

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
This commit is contained in:
sysops
2026-03-31 21:21:11 +02:00
parent ebc9e278ea
commit 7930b85cde
10 changed files with 592 additions and 3 deletions
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internal/tenantstore/store.go
+12 -2
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@@ -26,6 +26,10 @@ type Tenant struct {
LDAPURL string `json:"ldap_url,omitempty"`
HasLogo bool `json:"has_logo,omitempty"`
RetentionDays int `json:"retention_days"` // 0 = use global config
// Quota fields (PROJ-29) — nil = unlimited
MaxStorageBytes *int64 `json:"max_storage_bytes,omitempty"`
MaxUsers *int `json:"max_users,omitempty"`
MaxEmails *int64 `json:"max_emails,omitempty"`
}
// TenantDomain is an e-mail domain assigned to a tenant.
@@ -77,6 +81,9 @@ ALTER TABLE tenants ADD COLUMN IF NOT EXISTS logo_data BYTEA;
ALTER TABLE tenants ADD COLUMN IF NOT EXISTS logo_content_type VARCHAR(100) NOT NULL DEFAULT '';
ALTER TABLE tenants ADD COLUMN IF NOT EXISTS imap_mode TEXT NOT NULL DEFAULT 'personal';
ALTER TABLE tenants ADD COLUMN IF NOT EXISTS retention_days INT NOT NULL DEFAULT 0;
ALTER TABLE tenants ADD COLUMN IF NOT EXISTS max_storage_bytes BIGINT;
ALTER TABLE tenants ADD COLUMN IF NOT EXISTS max_users INT;
ALTER TABLE tenants ADD COLUMN IF NOT EXISTS max_emails BIGINT;
`
// New connects to PostgreSQL and initialises the tenant schema.
@@ -128,7 +135,10 @@ func (s *Store) List(ctx context.Context) ([]Tenant, error) {
tl.enabled AS ldap_enabled,
tl.url AS ldap_url,
(t.logo_data IS NOT NULL) AS has_logo,
t.retention_days
t.retention_days,
t.max_storage_bytes,
t.max_users,
t.max_emails
FROM tenants t
LEFT JOIN tenant_domains td ON td.tenant_id = t.id
LEFT JOIN users u ON u.tenant_id = t.id
@@ -144,7 +154,7 @@ func (s *Store) List(ctx context.Context) ([]Tenant, error) {
var tenants []Tenant
for rows.Next() {
var t Tenant
if err := rows.Scan(&t.ID, &t.Name, &t.Slug, &t.Active, &t.CreatedAt, &t.DomainCount, &t.UserCount, &t.LDAPEnabled, &t.LDAPURL, &t.HasLogo, &t.RetentionDays); err != nil {
if err := rows.Scan(&t.ID, &t.Name, &t.Slug, &t.Active, &t.CreatedAt, &t.DomainCount, &t.UserCount, &t.LDAPEnabled, &t.LDAPURL, &t.HasLogo, &t.RetentionDays, &t.MaxStorageBytes, &t.MaxUsers, &t.MaxEmails); err != nil {
return nil, fmt.Errorf("tenantstore: scan: %w", err)
}
tenants = append(tenants, t)