forked from vikunja/vikunja
konrad
dfb7730b63
Don't fail if the last avatar file does not exist when deleting it Fix lint Remove old global avatar setting and update docs Generate docs Invalidate the avatar cache when uploading a new one Add debug logs Add caching for upload avatars Add cache locks Fix encoding Resize the uploaded image to a max of 1024 pixels Remove the old uploaded avatar if one already exists Add mimetype check for images Set avatar provider to upload when uploading an avatar Add upload avatar provider Make font size smaller to let the initials still look good in smaller sizes Add debug log Add cache and resizing of initials avatars Make font size depend on avatar size Add drawing initials avatar Add initials provider Make the initials avatar provider the default Add routes Add user avatar settings handler methods Add user avatar provider field Co-authored-by: kolaente <k@knt.li> Reviewed-on: vikunja/api#622
127 lines
3.2 KiB
Go
127 lines
3.2 KiB
Go
// Vikunja is a to-do list application to facilitate your life.
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// Copyright 2018-2020 Vikunja and contributors. All rights reserved.
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//
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// This program is free software: you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// This program is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License
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// along with this program. If not, see <https://www.gnu.org/licenses/>.
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package metrics
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import (
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"bytes"
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"code.vikunja.io/api/pkg/log"
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"code.vikunja.io/web"
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"encoding/gob"
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"github.com/prometheus/client_golang/prometheus"
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"github.com/prometheus/client_golang/prometheus/promauto"
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"sync"
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"time"
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)
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// SecondsUntilInactive defines the seconds until a user is considered inactive
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const SecondsUntilInactive = 60
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// ActiveUsersKey is the key used to store active users in redis
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const ActiveUsersKey = `activeusers`
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// ActiveUser defines an active user
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type ActiveUser struct {
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UserID int64
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LastSeen time.Time
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}
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type activeUsersMap map[int64]*ActiveUser
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// ActiveUsers is the type used to save active users
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type ActiveUsers struct {
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users activeUsersMap
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mutex *sync.Mutex
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}
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// activeUsers holds a map with all active users
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var activeUsers *ActiveUsers
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func init() {
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activeUsers = &ActiveUsers{
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users: make(map[int64]*ActiveUser),
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mutex: &sync.Mutex{},
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}
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promauto.NewGaugeFunc(prometheus.GaugeOpts{
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Name: "vikunja_active_users",
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Help: "The currently active users on this node",
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}, func() float64 {
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allActiveUsers, err := getActiveUsers()
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if err != nil {
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log.Error(err.Error())
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}
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if allActiveUsers == nil {
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return 0
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}
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activeUsersCount := 0
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for _, u := range allActiveUsers {
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if time.Since(u.LastSeen) < SecondsUntilInactive*time.Second {
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activeUsersCount++
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}
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}
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return float64(activeUsersCount)
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})
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}
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// SetUserActive sets a user as active and pushes it to redis
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func SetUserActive(a web.Auth) (err error) {
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activeUsers.mutex.Lock()
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activeUsers.users[a.GetID()] = &ActiveUser{
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UserID: a.GetID(),
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LastSeen: time.Now(),
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}
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activeUsers.mutex.Unlock()
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return PushActiveUsers()
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}
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// getActiveUsers returns the active users from redis
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func getActiveUsers() (users activeUsersMap, err error) {
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activeUsersR, err := r.Get(ActiveUsersKey).Bytes()
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if err != nil {
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if err.Error() == "redis: nil" {
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return users, nil
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}
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return
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}
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var b bytes.Buffer
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_, err = b.Write(activeUsersR)
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if err != nil {
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return nil, err
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}
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d := gob.NewDecoder(&b)
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if err := d.Decode(&users); err != nil {
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return nil, err
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}
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return
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}
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// PushActiveUsers pushed the content of the activeUsers map to redis
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func PushActiveUsers() (err error) {
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var b bytes.Buffer
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e := gob.NewEncoder(&b)
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activeUsers.mutex.Lock()
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defer activeUsers.mutex.Unlock()
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if err := e.Encode(activeUsers.users); err != nil {
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return err
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}
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return r.Set(ActiveUsersKey, b.Bytes(), 0).Err()
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}
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