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// Copyright (c) 2015-present Mattermost, Inc. All Rights Reserved.
// See License.txt for license information.
package app
import (
"strings"
goi18n "github.com/nicksnyder/go-i18n/i18n"
"github.com/mattermost/mattermost-server/mlog"
"github.com/mattermost/mattermost-server/model"
)
type InviteProvider struct {
}
const (
CMD_INVITE = "invite"
)
func init() {
RegisterCommandProvider(&InviteProvider{})
}
func (me *InviteProvider) GetTrigger() string {
return CMD_INVITE
}
func (me *InviteProvider) GetCommand(a *App, T goi18n.TranslateFunc) *model.Command {
return &model.Command{
Trigger: CMD_INVITE,
AutoComplete: true,
AutoCompleteDesc: T("api.command_invite.desc"),
AutoCompleteHint: T("api.command_invite.hint"),
DisplayName: T("api.command_invite.name"),
}
}
func (me *InviteProvider) DoCommand(a *App, args *model.CommandArgs, message string) *model.CommandResponse {
if message == "" {
return &model.CommandResponse{
Text: args.T("api.command_invite.missing_message.app_error"),
ResponseType: model.COMMAND_RESPONSE_TYPE_EPHEMERAL,
}
}
splitMessage := strings.SplitN(message, " ", 2)
targetUsername := splitMessage[0]
targetUsername = strings.TrimPrefix(targetUsername, "@")
result := <-a.Srv.Store.User().GetByUsername(targetUsername)
if result.Err != nil {
mlog.Error(result.Err.Error())
return &model.CommandResponse{
Text: args.T("api.command_invite.missing_user.app_error"),
ResponseType: model.COMMAND_RESPONSE_TYPE_EPHEMERAL,
}
}
userProfile := result.Data.(*model.User)
if userProfile.DeleteAt != 0 {
return &model.CommandResponse{
Text: args.T("api.command_invite.missing_user.app_error"),
ResponseType: model.COMMAND_RESPONSE_TYPE_EPHEMERAL,
}
}
var channelToJoin *model.Channel
var err *model.AppError
// User set a channel to add the invited user
if len(splitMessage) > 1 && splitMessage[1] != "" {
targetChannelName := strings.TrimPrefix(strings.TrimSpace(splitMessage[1]), "~")
if channelToJoin, err = a.GetChannelByName(targetChannelName, args.TeamId, false); err != nil {
return &model.CommandResponse{
Text: args.T("api.command_invite.channel.error", map[string]interface{}{
"Channel": targetChannelName,
}),
ResponseType: model.COMMAND_RESPONSE_TYPE_EPHEMERAL,
}
}
} else {
channelToJoin, err = a.GetChannel(args.ChannelId)
if err != nil {
return &model.CommandResponse{
Text: args.T("api.command_invite.channel.app_error"),
ResponseType: model.COMMAND_RESPONSE_TYPE_EPHEMERAL,
}
}
}
// Permissions Check
switch channelToJoin.Type {
case model.CHANNEL_OPEN:
if !a.SessionHasPermissionToChannel(args.Session, channelToJoin.Id, model.PERMISSION_MANAGE_PUBLIC_CHANNEL_MEMBERS) {
return &model.CommandResponse{
Text: args.T("api.command_invite.permission.app_error", map[string]interface{}{
"User": userProfile.Username,
"Channel": channelToJoin.Name,
}),
ResponseType: model.COMMAND_RESPONSE_TYPE_EPHEMERAL,
}
}
case model.CHANNEL_PRIVATE:
if !a.SessionHasPermissionToChannel(args.Session, channelToJoin.Id, model.PERMISSION_MANAGE_PRIVATE_CHANNEL_MEMBERS) {
if _, err = a.GetChannelMember(channelToJoin.Id, args.UserId); err == nil {
// User doing the inviting is a member of the channel.
return &model.CommandResponse{
Text: args.T("api.command_invite.permission.app_error", map[string]interface{}{
"User": userProfile.Username,
"Channel": channelToJoin.Name,
}),
ResponseType: model.COMMAND_RESPONSE_TYPE_EPHEMERAL,
}
} else {
// User doing the inviting is *not* a member of the channel.
return &model.CommandResponse{
Text: args.T("api.command_invite.private_channel.app_error", map[string]interface{}{
"Channel": channelToJoin.Name,
}),
ResponseType: model.COMMAND_RESPONSE_TYPE_EPHEMERAL,
}
}
}
default:
return &model.CommandResponse{
Text: args.T("api.command_invite.directchannel.app_error"),
ResponseType: model.COMMAND_RESPONSE_TYPE_EPHEMERAL,
}
}
// Check if user is already in the channel
_, err = a.GetChannelMember(channelToJoin.Id, userProfile.Id)
if err == nil {
return &model.CommandResponse{
Text: args.T("api.command_invite.user_already_in_channel.app_error", map[string]interface{}{
"User": userProfile.Username,
}),
ResponseType: model.COMMAND_RESPONSE_TYPE_EPHEMERAL,
}
}
if _, err := a.AddChannelMember(userProfile.Id, channelToJoin, args.Session.UserId, "", !args.Session.IsMobileApp()); err != nil {
return &model.CommandResponse{
Text: args.T("api.command_invite.fail.app_error"),
ResponseType: model.COMMAND_RESPONSE_TYPE_EPHEMERAL,
}
}
if args.ChannelId != channelToJoin.Id {
return &model.CommandResponse{
Text: args.T("api.command_invite.success", map[string]interface{}{
"User": userProfile.Username,
"Channel": channelToJoin.Name,
}),
ResponseType: model.COMMAND_RESPONSE_TYPE_EPHEMERAL,
}
}
return &model.CommandResponse{}
}
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