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// Copyright (c) 2017-present Mattermost, Inc. All Rights Reserved.
// See License.txt for license information.
package api4
import (
"net/http"
"strconv"
"strings"
"github.com/mattermost/mattermost-server/model"
)
func (api *API) InitCommand() {
api.BaseRoutes.Commands.Handle("", api.ApiSessionRequired(createCommand)).Methods("POST")
api.BaseRoutes.Commands.Handle("", api.ApiSessionRequired(listCommands)).Methods("GET")
api.BaseRoutes.Commands.Handle("/execute", api.ApiSessionRequired(executeCommand)).Methods("POST")
api.BaseRoutes.Command.Handle("", api.ApiSessionRequired(updateCommand)).Methods("PUT")
api.BaseRoutes.Command.Handle("", api.ApiSessionRequired(deleteCommand)).Methods("DELETE")
api.BaseRoutes.Team.Handle("/commands/autocomplete", api.ApiSessionRequired(listAutocompleteCommands)).Methods("GET")
api.BaseRoutes.Command.Handle("/regen_token", api.ApiSessionRequired(regenCommandToken)).Methods("PUT")
}
func createCommand(c *Context, w http.ResponseWriter, r *http.Request) {
cmd := model.CommandFromJson(r.Body)
if cmd == nil {
c.SetInvalidParam("command")
return
}
c.LogAudit("attempt")
if !c.App.SessionHasPermissionToTeam(c.Session, cmd.TeamId, model.PERMISSION_MANAGE_SLASH_COMMANDS) {
c.SetPermissionError(model.PERMISSION_MANAGE_SLASH_COMMANDS)
return
}
cmd.CreatorId = c.Session.UserId
rcmd, err := c.App.CreateCommand(cmd)
if err != nil {
c.Err = err
return
}
c.LogAudit("success")
w.WriteHeader(http.StatusCreated)
w.Write([]byte(rcmd.ToJson()))
}
func updateCommand(c *Context, w http.ResponseWriter, r *http.Request) {
c.RequireCommandId()
if c.Err != nil {
return
}
cmd := model.CommandFromJson(r.Body)
if cmd == nil || cmd.Id != c.Params.CommandId {
c.SetInvalidParam("command")
return
}
c.LogAudit("attempt")
oldCmd, err := c.App.GetCommand(c.Params.CommandId)
if err != nil {
c.Err = err
return
}
if cmd.TeamId != oldCmd.TeamId {
c.Err = model.NewAppError("updateCommand", "api.command.team_mismatch.app_error", nil, "user_id="+c.Session.UserId, http.StatusBadRequest)
return
}
if !c.App.SessionHasPermissionToTeam(c.Session, oldCmd.TeamId, model.PERMISSION_MANAGE_SLASH_COMMANDS) {
c.LogAudit("fail - inappropriate permissions")
c.SetPermissionError(model.PERMISSION_MANAGE_SLASH_COMMANDS)
return
}
if c.Session.UserId != oldCmd.CreatorId && !c.App.SessionHasPermissionToTeam(c.Session, oldCmd.TeamId, model.PERMISSION_MANAGE_OTHERS_SLASH_COMMANDS) {
c.LogAudit("fail - inappropriate permissions")
c.SetPermissionError(model.PERMISSION_MANAGE_OTHERS_SLASH_COMMANDS)
return
}
rcmd, err := c.App.UpdateCommand(oldCmd, cmd)
if err != nil {
c.Err = err
return
}
c.LogAudit("success")
w.Write([]byte(rcmd.ToJson()))
}
func deleteCommand(c *Context, w http.ResponseWriter, r *http.Request) {
c.RequireCommandId()
if c.Err != nil {
return
}
c.LogAudit("attempt")
cmd, err := c.App.GetCommand(c.Params.CommandId)
if err != nil {
c.Err = err
return
}
if !c.App.SessionHasPermissionToTeam(c.Session, cmd.TeamId, model.PERMISSION_MANAGE_SLASH_COMMANDS) {
c.LogAudit("fail - inappropriate permissions")
c.SetPermissionError(model.PERMISSION_MANAGE_SLASH_COMMANDS)
return
}
if c.Session.UserId != cmd.CreatorId && !c.App.SessionHasPermissionToTeam(c.Session, cmd.TeamId, model.PERMISSION_MANAGE_OTHERS_SLASH_COMMANDS) {
c.LogAudit("fail - inappropriate permissions")
c.SetPermissionError(model.PERMISSION_MANAGE_OTHERS_SLASH_COMMANDS)
return
}
err = c.App.DeleteCommand(cmd.Id)
if err != nil {
c.Err = err
return
}
c.LogAudit("success")
ReturnStatusOK(w)
}
func listCommands(c *Context, w http.ResponseWriter, r *http.Request) {
customOnly, failConv := strconv.ParseBool(r.URL.Query().Get("custom_only"))
if failConv != nil {
customOnly = false
}
teamId := r.URL.Query().Get("team_id")
if len(teamId) == 0 {
c.SetInvalidParam("team_id")
return
}
var commands []*model.Command
var err *model.AppError
if customOnly {
if !c.App.SessionHasPermissionToTeam(c.Session, teamId, model.PERMISSION_MANAGE_SLASH_COMMANDS) {
c.SetPermissionError(model.PERMISSION_MANAGE_SLASH_COMMANDS)
return
}
commands, err = c.App.ListTeamCommands(teamId)
if err != nil {
c.Err = err
return
}
} else {
//User with no permission should see only system commands
if !c.App.SessionHasPermissionToTeam(c.Session, teamId, model.PERMISSION_MANAGE_SLASH_COMMANDS) {
commands, err = c.App.ListAutocompleteCommands(teamId, c.T)
if err != nil {
c.Err = err
return
}
} else {
commands, err = c.App.ListAllCommands(teamId, c.T)
if err != nil {
c.Err = err
return
}
}
}
w.Write([]byte(model.CommandListToJson(commands)))
}
func executeCommand(c *Context, w http.ResponseWriter, r *http.Request) {
commandArgs := model.CommandArgsFromJson(r.Body)
if commandArgs == nil {
c.SetInvalidParam("command_args")
return
}
if len(commandArgs.Command) <= 1 || strings.Index(commandArgs.Command, "/") != 0 || len(commandArgs.ChannelId) != 26 {
c.Err = model.NewAppError("executeCommand", "api.command.execute_command.start.app_error", nil, "", http.StatusBadRequest)
return
}
// checks that user is a member of the specified channel, and that they have permission to use slash commands in it
if !c.App.SessionHasPermissionToChannel(c.Session, commandArgs.ChannelId, model.PERMISSION_USE_SLASH_COMMANDS) {
c.SetPermissionError(model.PERMISSION_USE_SLASH_COMMANDS)
return
}
channel, err := c.App.GetChannel(commandArgs.ChannelId)
if err != nil {
c.Err = err
return
}
if channel.Type != model.CHANNEL_DIRECT && channel.Type != model.CHANNEL_GROUP {
// if this isn't a DM or GM, the team id is implicitly taken from the channel so that slash commands created on
// some other team can't be run against this one
commandArgs.TeamId = channel.TeamId
} else {
// if the slash command was used in a DM or GM, ensure that the user is a member of the specified team, so that
// they can't just execute slash commands against arbitrary teams
if c.Session.GetTeamByTeamId(commandArgs.TeamId) == nil {
if !c.App.SessionHasPermissionTo(c.Session, model.PERMISSION_USE_SLASH_COMMANDS) {
c.SetPermissionError(model.PERMISSION_USE_SLASH_COMMANDS)
return
}
}
}
commandArgs.UserId = c.Session.UserId
commandArgs.T = c.T
commandArgs.Session = c.Session
commandArgs.SiteURL = c.GetSiteURLHeader()
response, err := c.App.ExecuteCommand(commandArgs)
if err != nil {
c.Err = err
return
}
w.Write([]byte(response.ToJson()))
}
func listAutocompleteCommands(c *Context, w http.ResponseWriter, r *http.Request) {
c.RequireTeamId()
if c.Err != nil {
return
}
if !c.App.SessionHasPermissionToTeam(c.Session, c.Params.TeamId, model.PERMISSION_VIEW_TEAM) {
c.SetPermissionError(model.PERMISSION_VIEW_TEAM)
return
}
commands, err := c.App.ListAutocompleteCommands(c.Params.TeamId, c.T)
if err != nil {
c.Err = err
return
}
w.Write([]byte(model.CommandListToJson(commands)))
}
func regenCommandToken(c *Context, w http.ResponseWriter, r *http.Request) {
c.RequireCommandId()
if c.Err != nil {
return
}
c.LogAudit("attempt")
cmd, err := c.App.GetCommand(c.Params.CommandId)
if err != nil {
c.Err = err
return
}
if !c.App.SessionHasPermissionToTeam(c.Session, cmd.TeamId, model.PERMISSION_MANAGE_SLASH_COMMANDS) {
c.LogAudit("fail - inappropriate permissions")
c.SetPermissionError(model.PERMISSION_MANAGE_SLASH_COMMANDS)
return
}
if c.Session.UserId != cmd.CreatorId && !c.App.SessionHasPermissionToTeam(c.Session, cmd.TeamId, model.PERMISSION_MANAGE_OTHERS_SLASH_COMMANDS) {
c.LogAudit("fail - inappropriate permissions")
c.SetPermissionError(model.PERMISSION_MANAGE_OTHERS_SLASH_COMMANDS)
return
}
rcmd, err := c.App.RegenCommandToken(cmd)
if err != nil {
c.Err = err
return
}
resp := make(map[string]string)
resp["token"] = rcmd.Token
w.Write([]byte(model.MapToJson(resp)))
}
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