Files
mattermost/app/admin.go
2020-08-15 00:43:42 +03:00

238 lines
7.4 KiB
Go

// Copyright (c) 2015-present Mattermost, Inc. All Rights Reserved.
// See LICENSE.txt for license information.
package app
import (
"fmt"
"io"
"io/ioutil"
"os"
"time"
"runtime/debug"
"net/http"
"github.com/mattermost/mattermost-server/v5/mlog"
"github.com/mattermost/mattermost-server/v5/model"
"github.com/mattermost/mattermost-server/v5/services/mailservice"
"github.com/mattermost/mattermost-server/v5/utils"
)
func (s *Server) GetLogs(page, perPage int) ([]string, *model.AppError) {
var lines []string
license := s.License()
if license != nil && *license.Features.Cluster && s.Cluster != nil && *s.Config().ClusterSettings.Enable {
lines = append(lines, "-----------------------------------------------------------------------------------------------------------")
lines = append(lines, "-----------------------------------------------------------------------------------------------------------")
lines = append(lines, s.Cluster.GetMyClusterInfo().Hostname)
lines = append(lines, "-----------------------------------------------------------------------------------------------------------")
lines = append(lines, "-----------------------------------------------------------------------------------------------------------")
}
melines, err := s.GetLogsSkipSend(page, perPage)
if err != nil {
return nil, err
}
lines = append(lines, melines...)
if s.Cluster != nil && *s.Config().ClusterSettings.Enable {
clines, err := s.Cluster.GetLogs(page, perPage)
if err != nil {
return nil, err
}
lines = append(lines, clines...)
}
return lines, nil
}
func (a *App) GetLogs(page, perPage int) ([]string, *model.AppError) {
return a.Srv().GetLogs(page, perPage)
}
func (s *Server) GetLogsSkipSend(page, perPage int) ([]string, *model.AppError) {
var lines []string
if *s.Config().LogSettings.EnableFile {
logFile := utils.GetLogFileLocation(*s.Config().LogSettings.FileLocation)
file, err := os.Open(logFile)
if err != nil {
return nil, model.NewAppError("getLogs", "api.admin.file_read_error", nil, err.Error(), http.StatusInternalServerError)
}
defer file.Close()
var newLine = []byte{'\n'}
var lineCount int
const searchPos = -1
b := make([]byte, 1)
var endOffset int64 = 0
// if the file exists and it's last byte is '\n' - skip it
var stat os.FileInfo
if stat, err = os.Stat(logFile); err == nil {
if _, err = file.ReadAt(b, stat.Size()-1); err == nil && b[0] == newLine[0] {
endOffset = -1
}
}
lineEndPos, err := file.Seek(endOffset, io.SeekEnd)
if err != nil {
return nil, model.NewAppError("getLogs", "api.admin.file_read_error", nil, err.Error(), http.StatusInternalServerError)
}
for {
pos, err := file.Seek(searchPos, io.SeekCurrent)
if err != nil {
return nil, model.NewAppError("getLogs", "api.admin.file_read_error", nil, err.Error(), http.StatusInternalServerError)
}
_, err = file.ReadAt(b, pos)
if err != nil {
return nil, model.NewAppError("getLogs", "api.admin.file_read_error", nil, err.Error(), http.StatusInternalServerError)
}
if b[0] == newLine[0] || pos == 0 {
lineCount++
if lineCount > page*perPage {
line := make([]byte, lineEndPos-pos)
_, err := file.ReadAt(line, pos)
if err != nil {
return nil, model.NewAppError("getLogs", "api.admin.file_read_error", nil, err.Error(), http.StatusInternalServerError)
}
lines = append(lines, string(line))
}
if pos == 0 {
break
}
lineEndPos = pos
}
if len(lines) == perPage {
break
}
}
for i, j := 0, len(lines)-1; i < j; i, j = i+1, j-1 {
lines[i], lines[j] = lines[j], lines[i]
}
} else {
lines = append(lines, "")
}
return lines, nil
}
func (a *App) GetLogsSkipSend(page, perPage int) ([]string, *model.AppError) {
return a.Srv().GetLogsSkipSend(page, perPage)
}
func (a *App) GetClusterStatus() []*model.ClusterInfo {
infos := make([]*model.ClusterInfo, 0)
if a.Cluster() != nil {
infos = a.Cluster().GetClusterInfos()
}
return infos
}
func (s *Server) InvalidateAllCaches() *model.AppError {
debug.FreeOSMemory()
s.InvalidateAllCachesSkipSend()
if s.Cluster != nil {
msg := &model.ClusterMessage{
Event: model.CLUSTER_EVENT_INVALIDATE_ALL_CACHES,
SendType: model.CLUSTER_SEND_RELIABLE,
WaitForAllToSend: true,
}
s.Cluster.SendClusterMessage(msg)
}
return nil
}
func (s *Server) InvalidateAllCachesSkipSend() {
mlog.Info("Purging all caches")
s.sessionCache.Purge()
s.statusCache.Purge()
s.Store.Team().ClearCaches()
s.Store.Channel().ClearCaches()
s.Store.User().ClearCaches()
s.Store.Post().ClearCaches()
s.Store.FileInfo().ClearCaches()
s.Store.Webhook().ClearCaches()
s.LoadLicense()
}
func (a *App) RecycleDatabaseConnection() {
mlog.Info("Attempting to recycle database connections.")
// This works by setting 10 seconds as the max conn lifetime for all DB connections.
// This allows in gradually closing connections as they expire. In future, we can think
// of exposing this as a param from the REST api.
a.Srv().Store.RecycleDBConnections(10 * time.Second)
mlog.Info("Finished recycling database connections.")
}
func (a *App) TestSiteURL(siteURL string) *model.AppError {
url := fmt.Sprintf("%s/api/v4/system/ping", siteURL)
res, err := http.Get(url)
if err != nil || res.StatusCode != 200 {
return model.NewAppError("testSiteURL", "app.admin.test_site_url.failure", nil, "", http.StatusBadRequest)
}
defer func() {
_, _ = io.Copy(ioutil.Discard, res.Body)
_ = res.Body.Close()
}()
return nil
}
func (a *App) TestEmail(userId string, cfg *model.Config) *model.AppError {
if len(*cfg.EmailSettings.SMTPServer) == 0 {
return model.NewAppError("testEmail", "api.admin.test_email.missing_server", nil, utils.T("api.context.invalid_param.app_error", map[string]interface{}{"Name": "SMTPServer"}), http.StatusBadRequest)
}
// if the user hasn't changed their email settings, fill in the actual SMTP password so that
// the user can verify an existing SMTP connection
if *cfg.EmailSettings.SMTPPassword == model.FAKE_SETTING {
if *cfg.EmailSettings.SMTPServer == *a.Config().EmailSettings.SMTPServer &&
*cfg.EmailSettings.SMTPPort == *a.Config().EmailSettings.SMTPPort &&
*cfg.EmailSettings.SMTPUsername == *a.Config().EmailSettings.SMTPUsername {
*cfg.EmailSettings.SMTPPassword = *a.Config().EmailSettings.SMTPPassword
} else {
return model.NewAppError("testEmail", "api.admin.test_email.reenter_password", nil, "", http.StatusBadRequest)
}
}
user, err := a.GetUser(userId)
if err != nil {
return err
}
T := utils.GetUserTranslations(user.Locale)
license := a.Srv().License()
if err := mailservice.SendMailUsingConfig(user.Email, T("api.admin.test_email.subject"), T("api.admin.test_email.body"), cfg, license != nil && *license.Features.Compliance, ""); err != nil {
return model.NewAppError("testEmail", "app.admin.test_email.failure", map[string]interface{}{"Error": err.Error()}, "", http.StatusInternalServerError)
}
return nil
}
// ServerBusyStateChanged is called when a CLUSTER_EVENT_BUSY_STATE_CHANGED is received.
func (a *App) ServerBusyStateChanged(sbs *model.ServerBusyState) {
a.Srv().Busy.ClusterEventChanged(sbs)
if sbs.Busy {
mlog.Warn("server busy state activitated via cluster event - non-critical services disabled", mlog.Int64("expires_sec", sbs.Expires))
} else {
mlog.Info("server busy state cleared via cluster event - non-critical services enabled")
}
}