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|
package main
import (
"fmt"
"sort"
"strings"
garage "git.deuxfleurs.fr/garage-sdk/garage-admin-sdk-golang"
)
var (
ErrWebsiteNotFound = fmt.Errorf("Website not found")
ErrFetchBucketInfo = fmt.Errorf("Failed to fetch bucket information")
ErrWebsiteQuotaReached = fmt.Errorf("Can't create additional websites, quota reached")
ErrEmptyBucketName = fmt.Errorf("You can't create a website with an empty name")
ErrCantCreateBucket = fmt.Errorf("Can't create this bucket. Maybe another bucket already exists with this name or you have an invalid character")
ErrCantAllowKey = fmt.Errorf("Can't allow given key on the target bucket")
ErrCantConfigureBucket = fmt.Errorf("Unable to configure the bucket (activating website, adding quotas, etc.)")
)
type QuotaStat struct {
Current int64
Max int64
Ratio float64
Burstable bool
}
func NewQuotaStat(current, max int64, burstable bool) QuotaStat {
return QuotaStat {
Current: current,
Max: max,
Ratio: float64(current) / float64(max),
Burstable: burstable,
}
}
func (q *QuotaStat) IsFull() bool {
return q.Current >= q.Max
}
func (q *QuotaStat) Percent() int64 {
return int64(q.Ratio * 100)
}
func (q *QuotaStat) PrettyCurrent() string {
return prettyValue(q.Current)
}
func (q *QuotaStat) PrettyMax() string {
return prettyValue(q.Max)
}
func prettyValue(v int64) string {
if v < 1024 {
return fmt.Sprintf("%d octets", v)
}
v = v / 1024
if v < 1024 {
return fmt.Sprintf("%d kio", v)
}
v = v / 1024
if v < 1024 {
return fmt.Sprintf("%d Mio", v)
}
v = v / 1024
if v < 1024 {
return fmt.Sprintf("%d Gio", v)
}
v = v / 1024
return fmt.Sprintf("%d Tio", v)
}
type WebsiteId struct {
Pretty string
Internal string
Alt []string
Expanded bool
Url string
}
func NewWebsiteId(id string, aliases []string) *WebsiteId {
pretty := id
var alt []string
if len(aliases) > 0 {
pretty = aliases[0]
alt = aliases[1:]
}
expanded := strings.Contains(pretty, ".")
url := pretty
if !expanded {
url = fmt.Sprintf("%s.web.deuxfleurs.fr", pretty)
}
return &WebsiteId { pretty, id, alt, expanded, url }
}
func NewWebsiteIdFromBucketInfo(binfo *garage.BucketInfo) *WebsiteId {
return NewWebsiteId(*binfo.Id, binfo.GlobalAliases)
}
type WebsiteController struct {
User *LoggedUser
WebsiteIdx map[string]*WebsiteId
PrettyList []string
WebsiteCount QuotaStat
}
func NewWebsiteController(user *LoggedUser) (*WebsiteController, error) {
idx := map[string]*WebsiteId{}
var wlist []string
keyInfo, err := user.S3KeyInfo()
if err != nil {
return nil, err
}
for _, bckt := range(keyInfo.Buckets) {
if len(bckt.GlobalAliases) > 0 {
wid := NewWebsiteId(*bckt.Id, bckt.GlobalAliases)
idx[wid.Pretty] = wid
wlist = append(wlist, wid.Pretty)
}
}
sort.Strings(wlist)
maxW := user.Quota.WebsiteCount
quota := NewQuotaStat(int64(len(wlist)), maxW, true)
return &WebsiteController { user, idx, wlist, quota }, nil
}
func (w *WebsiteController) List() []*WebsiteId {
r := make([]*WebsiteId, 0, len(w.PrettyList))
for _, k := range w.PrettyList {
r = append(r, w.WebsiteIdx[k])
}
return r
}
func (w *WebsiteController) Inspect(pretty string) (*WebsiteView, error) {
website, ok := w.WebsiteIdx[pretty]
if !ok {
return nil, ErrWebsiteNotFound
}
binfo, err := grgGetBucket(website.Internal)
if err != nil {
return nil, ErrFetchBucketInfo
}
return NewWebsiteView(binfo), nil
}
func (w *WebsiteController) Patch(patch *WebsitePatch) (*WebsiteView, error) {
return nil, nil
}
func (w *WebsiteController) Create(pretty string) (*WebsiteView, error) {
if pretty == "" {
return nil, ErrEmptyBucketName
}
if w.WebsiteCount.IsFull() {
return nil, ErrWebsiteQuotaReached
}
binfo, err := grgCreateBucket(pretty)
if err != nil {
return nil, ErrCantCreateBucket
}
s3key, err := w.User.S3KeyInfo()
if err != nil {
return nil, err
}
binfo, err = grgAllowKeyOnBucket(*binfo.Id, *s3key.AccessKeyId)
if err != nil {
return nil, ErrCantAllowKey
}
qr := w.User.Quota.DefaultWebsiteQuota()
wr := allowWebsiteDefault()
ur := garage.NewUpdateBucketRequest()
ur.SetWebsiteAccess(*wr)
ur.SetQuotas(*qr)
binfo, err = grgUpdateBucket(*binfo.Id, ur)
if err != nil {
return nil, ErrCantConfigureBucket
}
return NewWebsiteView(binfo), nil
}
type WebsiteView struct {
Name *WebsiteId
Size QuotaStat
Files QuotaStat
}
func NewWebsiteView(binfo *garage.BucketInfo) *WebsiteView {
q := binfo.GetQuotas()
wid := NewWebsiteIdFromBucketInfo(binfo)
size := NewQuotaStat(*binfo.Bytes, (&q).GetMaxSize(), true)
objects := NewQuotaStat(*binfo.Objects, (&q).GetMaxObjects(), false)
return &WebsiteView { wid, size, objects }
}
type WebsitePatch struct {
size int64
}
|
