Files
mattermost/app/slashcommands/command_echo.go
Ibrahim Serdar Acikgoz 5ea06e51d0 Migrate to stateless app.App (#17542)
* add request context

* move initialialization to server

* use app interface instead of global app functions

* remove app context from webconn

* cleanup

* remove duplicated services

* move context to separate package

* remove finalize init method and move content to NewServer function

* restart workers and schedulers after adding license for tests

* reflect review comments

Co-authored-by: Mattermod <mattermod@users.noreply.github.com>
2021-05-11 13:00:44 +03:00

100 lines
2.7 KiB
Go

// Copyright (c) 2015-present Mattermost, Inc. All Rights Reserved.
// See LICENSE.txt for license information.
package slashcommands
import (
"strconv"
"strings"
"time"
"github.com/mattermost/mattermost-server/v5/app"
"github.com/mattermost/mattermost-server/v5/app/request"
"github.com/mattermost/mattermost-server/v5/model"
"github.com/mattermost/mattermost-server/v5/shared/i18n"
"github.com/mattermost/mattermost-server/v5/shared/mlog"
)
var echoSem chan bool
type EchoProvider struct {
}
const (
CmdEcho = "echo"
)
func init() {
app.RegisterCommandProvider(&EchoProvider{})
}
func (*EchoProvider) GetTrigger() string {
return CmdEcho
}
func (*EchoProvider) GetCommand(a *app.App, T i18n.TranslateFunc) *model.Command {
return &model.Command{
Trigger: CmdEcho,
AutoComplete: true,
AutoCompleteDesc: T("api.command_echo.desc"),
AutoCompleteHint: T("api.command_echo.hint"),
DisplayName: T("api.command_echo.name"),
}
}
func (*EchoProvider) DoCommand(a *app.App, c *request.Context, args *model.CommandArgs, message string) *model.CommandResponse {
if message == "" {
return &model.CommandResponse{Text: args.T("api.command_echo.message.app_error"), ResponseType: model.COMMAND_RESPONSE_TYPE_EPHEMERAL}
}
maxThreads := 100
delay := 0
if endMsg := strings.LastIndex(message, "\""); string(message[0]) == "\"" && endMsg > 1 {
if checkDelay, err := strconv.Atoi(strings.Trim(message[endMsg:], " \"")); err == nil {
delay = checkDelay
}
message = message[1:endMsg]
} else if strings.Contains(message, " ") {
delayIdx := strings.LastIndex(message, " ")
delayStr := strings.Trim(message[delayIdx:], " ")
if checkDelay, err := strconv.Atoi(delayStr); err == nil {
delay = checkDelay
message = message[:delayIdx]
}
}
if delay > 10000 {
return &model.CommandResponse{Text: args.T("api.command_echo.delay.app_error"), ResponseType: model.COMMAND_RESPONSE_TYPE_EPHEMERAL}
}
if echoSem == nil {
// We want one additional thread allowed so we never reach channel lockup
echoSem = make(chan bool, maxThreads+1)
}
if len(echoSem) >= maxThreads {
return &model.CommandResponse{Text: args.T("api.command_echo.high_volume.app_error"), ResponseType: model.COMMAND_RESPONSE_TYPE_EPHEMERAL}
}
echoSem <- true
a.Srv().Go(func() {
defer func() { <-echoSem }()
post := &model.Post{}
post.ChannelId = args.ChannelId
post.RootId = args.RootId
post.ParentId = args.ParentId
post.Message = message
post.UserId = args.UserId
time.Sleep(time.Duration(delay) * time.Second)
if _, err := a.CreatePostMissingChannel(c, post, true); err != nil {
mlog.Error("Unable to create /echo post.", mlog.Err(err))
}
})
return &model.CommandResponse{}
}