151 lines
3.3 KiB
Go
151 lines
3.3 KiB
Go
package main
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import (
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"errors"
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"fmt"
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"strconv"
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garage "git.deuxfleurs.fr/garage-sdk/garage-admin-sdk-golang"
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"github.com/go-ldap/ldap/v3"
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)
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const (
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// --- Default Quota Values ---
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QUOTA_WEBSITE_SIZE_DEFAULT = 1024 * 1024 * 50 // 50MB
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QUOTA_WEBSITE_SIZE_BURSTED = 1024 * 1024 * 200 // 200MB
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QUOTA_WEBSITE_OBJECTS = 10000 // 10k objects
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QUOTA_WEBSITE_COUNT = 5 // 5 buckets
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// --- Per-user overridable fields ---
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FIELD_QUOTA_WEBSITE_SIZE_BURSTED = "quota_website_size_bursted"
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FIELD_QUOTA_WEBSITE_COUNT = "quota_website_count"
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)
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type UserQuota struct {
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WebsiteCount int64
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WebsiteSizeDefault int64
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WebsiteSizeBursted int64
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WebsiteObjects int64
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}
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func NewUserQuota() *UserQuota {
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return &UserQuota{
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WebsiteCount: QUOTA_WEBSITE_COUNT,
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WebsiteSizeDefault: QUOTA_WEBSITE_SIZE_DEFAULT,
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WebsiteSizeBursted: QUOTA_WEBSITE_SIZE_BURSTED,
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WebsiteObjects: QUOTA_WEBSITE_OBJECTS,
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}
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}
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var (
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ErrQuotaEmpty = fmt.Errorf("No quota is defined for this entry")
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ErrQuotaInvalid = fmt.Errorf("The defined quota can't be parsed")
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)
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func entryToQuota(entry *ldap.Entry, field string) (int64, error) {
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f := entry.GetAttributeValue(field)
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if f == "" {
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return -1, ErrQuotaEmpty
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}
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q, err := strconv.ParseInt(f, 10, 64)
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if err != nil {
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return -1, errors.Join(ErrQuotaInvalid, err)
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}
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return q, nil
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}
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func NewUserQuotaFromEntry(entry *ldap.Entry) *UserQuota {
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quotas := NewUserQuota()
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if q, err := entryToQuota(entry, FIELD_QUOTA_WEBSITE_COUNT); err == nil {
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quotas.WebsiteCount = q
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}
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if q, err := entryToQuota(entry, FIELD_QUOTA_WEBSITE_SIZE_BURSTED); err == nil {
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quotas.WebsiteSizeBursted = q
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}
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return quotas
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}
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func (q *UserQuota) DefaultWebsiteQuota() *garage.UpdateBucketRequestQuotas {
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qr := garage.NewUpdateBucketRequestQuotas()
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qr.SetMaxSize(q.WebsiteSizeDefault)
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qr.SetMaxObjects(q.WebsiteSizeBursted)
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return qr
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}
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func (q *UserQuota) WebsiteSizeAdjust(sz int64) int64 {
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if sz < q.WebsiteSizeDefault {
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return q.WebsiteSizeDefault
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} else if sz > q.WebsiteSizeBursted {
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return q.WebsiteSizeBursted
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} else {
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return sz
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}
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}
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func (q *UserQuota) WebsiteObjectAdjust(objs int64) int64 {
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if objs > q.WebsiteObjects || objs <= 0 {
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return q.WebsiteObjects
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} else {
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return objs
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}
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}
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func (q *UserQuota) WebsiteSizeBurstedPretty() string {
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return prettyValue(q.WebsiteSizeBursted)
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}
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// --- A quota stat we can use
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type QuotaStat struct {
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Current int64 `json:"current"`
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Max int64 `json:"max"`
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Ratio float64 `json:"ratio"`
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Burstable bool `json:"burstable"`
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}
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func NewQuotaStat(current, max int64, burstable bool) QuotaStat {
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return QuotaStat{
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Current: current,
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Max: max,
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Ratio: float64(current) / float64(max),
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Burstable: burstable,
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}
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}
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func (q *QuotaStat) IsFull() bool {
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return q.Current >= q.Max
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}
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func (q *QuotaStat) Percent() int64 {
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return int64(q.Ratio * 100)
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}
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func (q *QuotaStat) PrettyCurrent() string {
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return prettyValue(q.Current)
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}
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func (q *QuotaStat) PrettyMax() string {
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return prettyValue(q.Max)
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}
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func prettyValue(v int64) string {
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if v < 1024 {
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return fmt.Sprintf("%d octets", v)
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}
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v = v / 1024
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if v < 1024 {
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return fmt.Sprintf("%d kio", v)
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}
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v = v / 1024
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if v < 1024 {
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return fmt.Sprintf("%d Mio", v)
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}
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v = v / 1024
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if v < 1024 {
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return fmt.Sprintf("%d Gio", v)
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}
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v = v / 1024
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return fmt.Sprintf("%d Tio", v)
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}
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