safing-portmaster/profile/index/index.go
2018-12-12 19:18:23 +01:00

102 lines
2.3 KiB
Go

package index
import (
"encoding/base64"
"errors"
"fmt"
"sync"
"github.com/Safing/portbase/database/record"
"github.com/Safing/portbase/utils"
)
// ProfileIndex links an Identifier to Profiles
type ProfileIndex struct {
record.Base
sync.Mutex
ID string
UserProfiles []string
StampProfiles []string
}
func makeIndexRecordKey(fpType, id string) string {
return fmt.Sprintf("index:profiles/%s:%s", fpType, base64.RawURLEncoding.EncodeToString([]byte(id)))
}
// NewIndex returns a new ProfileIndex.
func NewIndex(id string) *ProfileIndex {
return &ProfileIndex{
ID: id,
}
}
// AddUserProfile adds a User Profile to the index.
func (pi *ProfileIndex) AddUserProfile(identifier string) (changed bool) {
if !utils.StringInSlice(pi.UserProfiles, identifier) {
pi.UserProfiles = append(pi.UserProfiles, identifier)
return true
}
return false
}
// AddStampProfile adds a Stamp Profile to the index.
func (pi *ProfileIndex) AddStampProfile(identifier string) (changed bool) {
if !utils.StringInSlice(pi.StampProfiles, identifier) {
pi.StampProfiles = append(pi.StampProfiles, identifier)
return true
}
return false
}
// RemoveUserProfile removes a profile from the index.
func (pi *ProfileIndex) RemoveUserProfile(id string) {
pi.UserProfiles = utils.RemoveFromStringSlice(pi.UserProfiles, id)
}
// RemoveStampProfile removes a profile from the index.
func (pi *ProfileIndex) RemoveStampProfile(id string) {
pi.StampProfiles = utils.RemoveFromStringSlice(pi.StampProfiles, id)
}
// Get gets a ProfileIndex from the database.
func Get(fpType, id string) (*ProfileIndex, error) {
key := makeIndexRecordKey(fpType, id)
r, err := indexDB.Get(key)
if err != nil {
return nil, err
}
// unwrap
if r.IsWrapped() {
// only allocate a new struct, if we need it
new := &ProfileIndex{}
err = record.Unwrap(r, new)
if err != nil {
return nil, err
}
return new, nil
}
// or adjust type
new, ok := r.(*ProfileIndex)
if !ok {
return nil, fmt.Errorf("record not of type *ProfileIndex, but %T", r)
}
return new, nil
}
// Save saves the Identifiers to the database
func (pi *ProfileIndex) Save() error {
if !pi.KeyIsSet() {
if pi.ID != "" {
pi.SetKey(makeIndexRecordKey(pi.ID))
} else {
return errors.New("missing identification Key")
}
}
return indexDB.Put(pi)
}