github.com/lologarithm/mattermost-server@v5.3.2-0.20181002060438-c82a84ed765b+incompatible/app/command_invite.go (about)

     1  // Copyright (c) 2015-present Mattermost, Inc. All Rights Reserved.
     2  // See License.txt for license information.
     3  
     4  package app
     5  
     6  import (
     7  	"strings"
     8  
     9  	goi18n "github.com/nicksnyder/go-i18n/i18n"
    10  
    11  	"github.com/mattermost/mattermost-server/mlog"
    12  	"github.com/mattermost/mattermost-server/model"
    13  )
    14  
    15  type InviteProvider struct {
    16  }
    17  
    18  const (
    19  	CMD_INVITE = "invite"
    20  )
    21  
    22  func init() {
    23  	RegisterCommandProvider(&InviteProvider{})
    24  }
    25  
    26  func (me *InviteProvider) GetTrigger() string {
    27  	return CMD_INVITE
    28  }
    29  
    30  func (me *InviteProvider) GetCommand(a *App, T goi18n.TranslateFunc) *model.Command {
    31  	return &model.Command{
    32  		Trigger:          CMD_INVITE,
    33  		AutoComplete:     true,
    34  		AutoCompleteDesc: T("api.command_invite.desc"),
    35  		AutoCompleteHint: T("api.command_invite.hint"),
    36  		DisplayName:      T("api.command_invite.name"),
    37  	}
    38  }
    39  
    40  func (me *InviteProvider) DoCommand(a *App, args *model.CommandArgs, message string) *model.CommandResponse {
    41  	if message == "" {
    42  		return &model.CommandResponse{
    43  			Text:         args.T("api.command_invite.missing_message.app_error"),
    44  			ResponseType: model.COMMAND_RESPONSE_TYPE_EPHEMERAL,
    45  		}
    46  	}
    47  
    48  	splitMessage := strings.SplitN(message, " ", 2)
    49  	targetUsername := splitMessage[0]
    50  	targetUsername = strings.TrimPrefix(targetUsername, "@")
    51  
    52  	result := <-a.Srv.Store.User().GetByUsername(targetUsername)
    53  	if result.Err != nil {
    54  		mlog.Error(result.Err.Error())
    55  		return &model.CommandResponse{
    56  			Text:         args.T("api.command_invite.missing_user.app_error"),
    57  			ResponseType: model.COMMAND_RESPONSE_TYPE_EPHEMERAL,
    58  		}
    59  	}
    60  
    61  	userProfile := result.Data.(*model.User)
    62  	if userProfile.DeleteAt != 0 {
    63  		return &model.CommandResponse{
    64  			Text:         args.T("api.command_invite.missing_user.app_error"),
    65  			ResponseType: model.COMMAND_RESPONSE_TYPE_EPHEMERAL,
    66  		}
    67  	}
    68  
    69  	var channelToJoin *model.Channel
    70  	var err *model.AppError
    71  	// User set a channel to add the invited user
    72  	if len(splitMessage) > 1 && splitMessage[1] != "" {
    73  		targetChannelName := strings.TrimPrefix(strings.TrimSpace(splitMessage[1]), "~")
    74  
    75  		if channelToJoin, err = a.GetChannelByName(targetChannelName, args.TeamId, false); err != nil {
    76  			return &model.CommandResponse{
    77  				Text: args.T("api.command_invite.channel.error", map[string]interface{}{
    78  					"Channel": targetChannelName,
    79  				}),
    80  				ResponseType: model.COMMAND_RESPONSE_TYPE_EPHEMERAL,
    81  			}
    82  		}
    83  	} else {
    84  		channelToJoin, err = a.GetChannel(args.ChannelId)
    85  		if err != nil {
    86  			return &model.CommandResponse{
    87  				Text:         args.T("api.command_invite.channel.app_error"),
    88  				ResponseType: model.COMMAND_RESPONSE_TYPE_EPHEMERAL,
    89  			}
    90  		}
    91  	}
    92  
    93  	// Permissions Check
    94  	switch channelToJoin.Type {
    95  	case model.CHANNEL_OPEN:
    96  		if !a.SessionHasPermissionToChannel(args.Session, channelToJoin.Id, model.PERMISSION_MANAGE_PUBLIC_CHANNEL_MEMBERS) {
    97  			return &model.CommandResponse{
    98  				Text: args.T("api.command_invite.permission.app_error", map[string]interface{}{
    99  					"User":    userProfile.Username,
   100  					"Channel": channelToJoin.Name,
   101  				}),
   102  				ResponseType: model.COMMAND_RESPONSE_TYPE_EPHEMERAL,
   103  			}
   104  		}
   105  	case model.CHANNEL_PRIVATE:
   106  		if !a.SessionHasPermissionToChannel(args.Session, channelToJoin.Id, model.PERMISSION_MANAGE_PRIVATE_CHANNEL_MEMBERS) {
   107  			if _, err = a.GetChannelMember(channelToJoin.Id, args.UserId); err == nil {
   108  				// User doing the inviting is a member of the channel.
   109  				return &model.CommandResponse{
   110  					Text: args.T("api.command_invite.permission.app_error", map[string]interface{}{
   111  						"User":    userProfile.Username,
   112  						"Channel": channelToJoin.Name,
   113  					}),
   114  					ResponseType: model.COMMAND_RESPONSE_TYPE_EPHEMERAL,
   115  				}
   116  			} else {
   117  				// User doing the inviting is *not* a member of the channel.
   118  				return &model.CommandResponse{
   119  					Text: args.T("api.command_invite.private_channel.app_error", map[string]interface{}{
   120  						"Channel": channelToJoin.Name,
   121  					}),
   122  					ResponseType: model.COMMAND_RESPONSE_TYPE_EPHEMERAL,
   123  				}
   124  			}
   125  		}
   126  	default:
   127  		return &model.CommandResponse{
   128  			Text:         args.T("api.command_invite.directchannel.app_error"),
   129  			ResponseType: model.COMMAND_RESPONSE_TYPE_EPHEMERAL,
   130  		}
   131  	}
   132  
   133  	// Check if user is already in the channel
   134  	_, err = a.GetChannelMember(channelToJoin.Id, userProfile.Id)
   135  	if err == nil {
   136  		return &model.CommandResponse{
   137  			Text: args.T("api.command_invite.user_already_in_channel.app_error", map[string]interface{}{
   138  				"User": userProfile.Username,
   139  			}),
   140  			ResponseType: model.COMMAND_RESPONSE_TYPE_EPHEMERAL,
   141  		}
   142  	}
   143  
   144  	if _, err := a.AddChannelMember(userProfile.Id, channelToJoin, args.Session.UserId, "", !args.Session.IsMobileApp()); err != nil {
   145  		return &model.CommandResponse{
   146  			Text:         args.T("api.command_invite.fail.app_error"),
   147  			ResponseType: model.COMMAND_RESPONSE_TYPE_EPHEMERAL,
   148  		}
   149  	}
   150  
   151  	if args.ChannelId != channelToJoin.Id {
   152  		return &model.CommandResponse{
   153  			Text: args.T("api.command_invite.success", map[string]interface{}{
   154  				"User":    userProfile.Username,
   155  				"Channel": channelToJoin.Name,
   156  			}),
   157  			ResponseType: model.COMMAND_RESPONSE_TYPE_EPHEMERAL,
   158  		}
   159  	}
   160  
   161  	return &model.CommandResponse{}
   162  }