118 lines
3.1 KiB
Go
118 lines
3.1 KiB
Go
// Vikunja is a to-do list application to facilitate your life.
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// Copyright 2018-2021 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 Affero General Public Licensee 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 Affero General Public Licensee for more details.
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//
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// You should have received a copy of the GNU Affero General Public Licensee
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// along with this program. If not, see <https://www.gnu.org/licenses/>.
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package routes
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import (
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"crypto/subtle"
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"code.vikunja.io/api/pkg/config"
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"code.vikunja.io/api/pkg/log"
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"code.vikunja.io/api/pkg/metrics"
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"code.vikunja.io/api/pkg/models"
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auth2 "code.vikunja.io/api/pkg/modules/auth"
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"code.vikunja.io/api/pkg/user"
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"github.com/labstack/echo/v4"
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"github.com/labstack/echo/v4/middleware"
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"github.com/prometheus/client_golang/prometheus/promhttp"
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)
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func setupMetrics(a *echo.Group) {
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if !config.MetricsEnabled.GetBool() {
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return
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}
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metrics.InitMetrics()
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type countable struct {
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Rediskey string
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Type interface{}
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}
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for _, c := range []countable{
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{
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metrics.ListCountKey,
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models.List{},
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},
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{
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metrics.UserCountKey,
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user.User{},
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},
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{
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metrics.NamespaceCountKey,
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models.Namespace{},
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},
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{
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metrics.TaskCountKey,
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models.Task{},
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},
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{
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metrics.TeamCountKey,
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models.Team{},
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},
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} {
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// Set initial totals
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total, err := models.GetTotalCount(c.Type)
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if err != nil {
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log.Fatalf("Could not get initial count for %v, error was %s", c.Type, err)
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}
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if err := metrics.SetCount(total, c.Rediskey); err != nil {
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log.Fatalf("Could not set initial count for %v, error was %s", c.Type, err)
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}
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}
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r := a.Group("/metrics")
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if config.MetricsUsername.GetString() != "" && config.MetricsPassword.GetString() != "" {
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r.Use(middleware.BasicAuth(func(username, password string, c echo.Context) (bool, error) {
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if subtle.ConstantTimeCompare([]byte(username), []byte(config.MetricsUsername.GetString())) == 1 &&
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subtle.ConstantTimeCompare([]byte(password), []byte(config.MetricsPassword.GetString())) == 1 {
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return true, nil
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}
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return false, nil
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}))
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}
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r.GET("", echo.WrapHandler(promhttp.HandlerFor(metrics.GetRegistry(), promhttp.HandlerOpts{})))
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}
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func setupMetricsMiddleware(a *echo.Group) {
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if !config.MetricsEnabled.GetBool() {
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return
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}
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a.Use(func(next echo.HandlerFunc) echo.HandlerFunc {
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return func(c echo.Context) error {
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// Update currently active users
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if err := updateActiveUsersFromContext(c); err != nil {
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log.Error(err)
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return next(c)
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}
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return next(c)
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}
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})
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}
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// updateActiveUsersFromContext updates the currently active users in redis
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func updateActiveUsersFromContext(c echo.Context) (err error) {
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auth, err := auth2.GetAuthFromClaims(c)
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if err != nil {
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return
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}
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return metrics.SetUserActive(auth)
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}
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