snapshot of https://github.com/mattermost/mattermost.git (master, 2026-09-16; blobs > 131072B omitted)

server/channels/web/context.go

@@ -0,0 +1,883 @@
+// Copyright (c) 2015-present Mattermost, Inc. All Rights Reserved.
+// See LICENSE.txt for license information.
+
+package web
+
+import (
+	"net/http"
+	"regexp"
+	"strings"
+
+	"github.com/mattermost/mattermost/server/public/model"
+	"github.com/mattermost/mattermost/server/public/shared/i18n"
+	"github.com/mattermost/mattermost/server/public/shared/mlog"
+	"github.com/mattermost/mattermost/server/public/shared/request"
+	"github.com/mattermost/mattermost/server/v8/channels/app"
+	"github.com/mattermost/mattermost/server/v8/channels/utils"
+)
+
+type Context struct {
+	App           *app.App
+	AppContext    request.CTX
+	Logger        *mlog.Logger
+	Params        *Params
+	Err           *model.AppError
+	siteURLHeader string
+}
+
+// LogAuditRec logs an audit record using default LevelAPI.
+func (c *Context) LogAuditRec(rec *model.AuditRecord) {
+	// finish populating the context data, in case the session wasn't available during MakeAuditRecord
+	// (e.g., api4/user.go login)
+	if rec.Actor.UserId == "" {
+		rec.Actor.UserId = c.AppContext.Session().UserId
+	}
+	if rec.Actor.SessionId == "" {
+		rec.Actor.SessionId = c.AppContext.Session().Id
+	}
+	if _, exists := rec.Meta[model.SessionPropUserAccessTokenId]; !exists && c.AppContext.Session().IsUserAccessToken() {
+		rec.Meta[model.SessionPropUserAccessTokenId] = c.AppContext.Session().Props[model.SessionPropUserAccessTokenId]
+	}
+
+	c.LogAuditRecWithLevel(rec, app.LevelAPI)
+}
+
+// LogAuditRecWithLevel logs an audit record using specified Level.
+// If the context is flagged with a permissions error then `level`
+// is ignored and the audit record is emitted with `LevelPerms`.
+func (c *Context) LogAuditRecWithLevel(rec *model.AuditRecord, level mlog.Level) {
+	if rec == nil {
+		return
+	}
+	if c.Err != nil {
+		rec.AddErrorCode(c.Err.StatusCode)
+		rec.AddErrorDesc(c.Err.Error())
+		if c.Err.Id == "api.context.permissions.app_error" {
+			level = app.LevelPerms
+		}
+		rec.Fail()
+	}
+	c.App.Srv().Audit.LogRecord(level, *rec)
+}
+
+// MakeAuditRecord creates an audit record pre-populated with data from this context.
+func (c *Context) MakeAuditRecord(event string, initialStatus string) *model.AuditRecord {
+	meta := map[string]any{
+		model.AuditKeyAPIPath:   c.AppContext.Path(),
+		model.AuditKeyClusterID: c.App.GetClusterId(),
+	}
+	if c.AppContext.Session().IsUserAccessToken() {
+		meta[model.SessionPropUserAccessTokenId] = c.AppContext.Session().Props[model.SessionPropUserAccessTokenId]
+	}
+
+	rec := &model.AuditRecord{
+		EventName: event,
+		Status:    initialStatus,
+		Actor: model.AuditEventActor{
+			UserId:        c.AppContext.Session().UserId,
+			SessionId:     c.AppContext.Session().Id,
+			Client:        c.AppContext.UserAgent(),
+			IpAddress:     c.AppContext.IPAddress(),
+			XForwardedFor: c.AppContext.XForwardedFor(),
+		},
+		Meta: meta,
+		EventData: model.AuditEventData{
+			Parameters:  map[string]any{},
+			PriorState:  map[string]any{},
+			ResultState: map[string]any{},
+			ObjectType:  "",
+		},
+	}
+
+	return rec
+}
+
+func (c *Context) LogAudit(extraInfo string) {
+	audit := &model.Audit{UserId: c.AppContext.Session().UserId, IpAddress: c.AppContext.IPAddress(), Action: c.AppContext.Path(), ExtraInfo: extraInfo, SessionId: c.AppContext.Session().Id}
+	if err := c.App.Srv().Store().Audit().Save(audit); err != nil {
+		appErr := model.NewAppError("LogAudit", "app.audit.save.saving.app_error", nil, "", http.StatusInternalServerError).Wrap(err)
+		c.LogErrorByCode(appErr)
+	}
+}
+
+func (c *Context) LogAuditWithUserId(userId, extraInfo string) {
+	if c.AppContext.Session().UserId != "" {
+		extraInfo = strings.TrimSpace(extraInfo + " session_user=" + c.AppContext.Session().UserId)
+	}
+
+	audit := &model.Audit{UserId: userId, IpAddress: c.AppContext.IPAddress(), Action: c.AppContext.Path(), ExtraInfo: extraInfo, SessionId: c.AppContext.Session().Id}
+	if err := c.App.Srv().Store().Audit().Save(audit); err != nil {
+		appErr := model.NewAppError("LogAuditWithUserId", "app.audit.save.saving.app_error", nil, "", http.StatusInternalServerError).Wrap(err)
+		c.LogErrorByCode(appErr)
+	}
+}
+
+func (c *Context) LogErrorByCode(err *model.AppError) {
+	code := err.StatusCode
+	msg := err.SystemMessage(i18n.TDefault)
+	fields := []mlog.Field{
+		mlog.String("err_where", err.Where),
+		mlog.Int("http_code", err.StatusCode),
+		mlog.String("error", err.Error()),
+	}
+	switch {
+	case (code >= http.StatusBadRequest && code < http.StatusInternalServerError) ||
+		err.Id == "web.check_browser_compatibility.app_error":
+		c.Logger.Debug(msg, fields...)
+	case code == http.StatusNotImplemented:
+		c.Logger.Info(msg, fields...)
+	default:
+		c.Logger.Error(msg, fields...)
+	}
+}
+
+func (c *Context) IsSystemAdmin() bool {
+	return c.App.SessionHasPermissionTo(*c.AppContext.Session(), model.PermissionManageSystem)
+}
+
+func (c *Context) SessionRequired() {
+	if !*c.App.Config().ServiceSettings.EnableUserAccessTokens &&
+		c.AppContext.Session().Props[model.SessionPropType] == model.SessionTypeUserAccessToken &&
+		c.AppContext.Session().Props[model.SessionPropIsBot] != model.SessionPropIsBotValue {
+		c.Err = model.NewAppError("", "api.context.session_expired.app_error", nil, "UserAccessToken", http.StatusUnauthorized)
+		return
+	}
+
+	if c.AppContext.Session().UserId == "" {
+		c.Err = model.NewAppError("", "api.context.session_expired.app_error", nil, "UserRequired", http.StatusUnauthorized)
+		return
+	}
+}
+
+func (c *Context) CloudKeyRequired() {
+	if license := c.App.Channels().License(); license == nil || !license.IsCloud() || c.AppContext.Session().Props[model.SessionPropType] != model.SessionTypeCloudKey {
+		c.Err = model.NewAppError("", "api.context.session_expired.app_error", nil, "TokenRequired", http.StatusUnauthorized)
+		return
+	}
+}
+
+func (c *Context) RemoteClusterTokenRequired() {
+	if license := c.App.Channels().License(); license == nil || !license.HasRemoteClusterService() || c.AppContext.Session().Props[model.SessionPropType] != model.SessionTypeRemoteclusterToken {
+		c.Err = model.NewAppError("", "api.context.session_expired.app_error", nil, "TokenRequired", http.StatusUnauthorized)
+		return
+	}
+}
+
+func (c *Context) MfaRequired(method string) {
+	if appErr := c.App.MFARequired(c.AppContext, method); appErr != nil {
+		c.Err = appErr
+	}
+}
+
+// ExtendSessionExpiryIfNeeded will update Session.ExpiresAt based on session lengths in config.
+// Session cookies will be resent to the client with updated max age.
+func (c *Context) ExtendSessionExpiryIfNeeded(w http.ResponseWriter, r *http.Request) {
+	if ok := c.App.ExtendSessionExpiryIfNeeded(c.AppContext, c.AppContext.Session()); ok {
+		c.App.AttachSessionCookies(c.AppContext, w, r)
+	}
+}
+
+func (c *Context) RemoveSessionCookie(w http.ResponseWriter, r *http.Request) {
+	subpath, _ := utils.GetSubpathFromConfig(c.App.Config())
+
+	cookie := &http.Cookie{
+		Name:     model.SessionCookieToken,
+		Value:    "",
+		Path:     subpath,
+		MaxAge:   -1,
+		HttpOnly: true,
+	}
+
+	http.SetCookie(w, cookie)
+}
+
+func (c *Context) SetInvalidParam(parameter string) {
+	c.Err = NewInvalidParamError(parameter)
+}
+
+func (c *Context) SetInvalidParamWithDetails(parameter string, details string) {
+	c.Err = NewInvalidParamDetailedError(parameter, details)
+}
+
+func (c *Context) SetInvalidParamWithErr(parameter string, err error) {
+	c.Err = NewInvalidParamError(parameter).Wrap(err)
+}
+
+func (c *Context) SetInvalidURLParam(parameter string) {
+	c.Err = NewInvalidURLParamError(parameter)
+}
+
+func (c *Context) SetServerBusyError() {
+	c.Err = NewServerBusyError()
+}
+
+func (c *Context) SetInvalidRemoteIdError(id string) {
+	c.Err = NewInvalidRemoteIdError(id)
+}
+
+func (c *Context) SetInvalidRemoteClusterTokenError() {
+	c.Err = NewInvalidRemoteClusterTokenError()
+}
+
+func (c *Context) SetJSONEncodingError(err error) {
+	c.Err = NewJSONEncodingError(err)
+}
+
+func (c *Context) SetCommandNotFoundError() {
+	c.Err = model.NewAppError("GetCommand", "store.sql_command.save.get.app_error", nil, "", http.StatusNotFound)
+}
+
+func (c *Context) HandleEtag(etag string, routeName string, w http.ResponseWriter, r *http.Request) bool {
+	metrics := c.App.Metrics()
+	if et := r.Header.Get(model.HeaderEtagClient); etag != "" {
+		if et == etag {
+			w.Header().Set(model.HeaderEtagServer, etag)
+			w.WriteHeader(http.StatusNotModified)
+			if metrics != nil {
+				metrics.IncrementEtagHitCounter(routeName)
+			}
+			return true
+		}
+	}
+
+	if metrics != nil {
+		metrics.IncrementEtagMissCounter(routeName)
+	}
+
+	return false
+}
+
+func NewInvalidParamDetailedError(parameter string, details string) *model.AppError {
+	err := model.NewAppError("Context", "api.context.invalid_body_param.app_error", map[string]any{"Name": parameter}, details, http.StatusBadRequest)
+	return err
+}
+func NewInvalidParamError(parameter string) *model.AppError {
+	err := model.NewAppError("Context", "api.context.invalid_body_param.app_error", map[string]any{"Name": parameter}, "", http.StatusBadRequest)
+	return err
+}
+
+func NewInvalidURLParamError(parameter string) *model.AppError {
+	err := model.NewAppError("Context", "api.context.invalid_url_param.app_error", map[string]any{"Name": parameter}, "", http.StatusBadRequest)
+	return err
+}
+
+func NewServerBusyError() *model.AppError {
+	err := model.NewAppError("Context", "api.context.server_busy.app_error", nil, "", http.StatusServiceUnavailable)
+	return err
+}
+
+func NewInvalidRemoteIdError(parameter string) *model.AppError {
+	err := model.NewAppError("Context", "api.context.remote_id_invalid.app_error", map[string]any{"RemoteId": parameter}, "", http.StatusBadRequest)
+	return err
+}
+
+func NewInvalidRemoteClusterTokenError() *model.AppError {
+	err := model.NewAppError("Context", "api.context.remote_id_invalid.app_error", nil, "", http.StatusUnauthorized)
+	return err
+}
+
+func NewJSONEncodingError(err error) *model.AppError {
+	appErr := model.NewAppError("Context", "api.context.json_encoding.app_error", nil, "", http.StatusInternalServerError).Wrap(err)
+	return appErr
+}
+
+func (c *Context) SetPermissionError(permissions ...*model.Permission) {
+	c.Err = model.MakePermissionError(c.AppContext.Session(), permissions)
+}
+
+func (c *Context) SetSiteURLHeader(url string) {
+	c.siteURLHeader = strings.TrimRight(url, "/")
+}
+
+func (c *Context) GetSiteURLHeader() string {
+	return c.siteURLHeader
+}
+
+func (c *Context) RequireUserId() *Context {
+	if c.Err != nil {
+		return c
+	}
+
+	if c.Params.UserId == model.Me {
+		c.Params.UserId = c.AppContext.Session().UserId
+	}
+
+	if !model.IsValidId(c.Params.UserId) {
+		c.SetInvalidURLParam("user_id")
+	}
+	return c
+}
+
+func (c *Context) RequireOtherUserId() *Context {
+	if c.Err != nil {
+		return c
+	}
+
+	if !model.IsValidId(c.Params.OtherUserId) {
+		c.SetInvalidURLParam("other_user_id")
+	}
+	return c
+}
+
+func (c *Context) RequireTeamId() *Context {
+	if c.Err != nil {
+		return c
+	}
+
+	if !model.IsValidId(c.Params.TeamId) {
+		c.SetInvalidURLParam("team_id")
+	}
+	return c
+}
+
+func (c *Context) RequireCategoryId() *Context {
+	if c.Err != nil {
+		return c
+	}
+
+	if !model.IsValidCategoryId(c.Params.CategoryId) {
+		c.SetInvalidURLParam("category_id")
+	}
+	return c
+}
+
+func (c *Context) RequireInviteId() *Context {
+	if c.Err != nil {
+		return c
+	}
+
+	if c.Params.InviteId == "" {
+		c.SetInvalidURLParam("invite_id")
+	}
+	return c
+}
+
+func (c *Context) RequireTokenId() *Context {
+	if c.Err != nil {
+		return c
+	}
+
+	if !model.IsValidId(c.Params.TokenId) {
+		c.SetInvalidURLParam("token_id")
+	}
+	return c
+}
+
+func (c *Context) RequireThreadId() *Context {
+	if c.Err != nil {
+		return c
+	}
+
+	if !model.IsValidId(c.Params.ThreadId) {
+		c.SetInvalidURLParam("thread_id")
+	}
+	return c
+}
+
+func (c *Context) RequireTimestamp() *Context {
+	if c.Err != nil {
+		return c
+	}
+
+	if c.Params.Timestamp == 0 {
+		c.SetInvalidURLParam("timestamp")
+	}
+	return c
+}
+
+func (c *Context) RequireChannelId() *Context {
+	if c.Err != nil {
+		return c
+	}
+
+	if !model.IsValidId(c.Params.ChannelId) {
+		c.SetInvalidURLParam("channel_id")
+	}
+	return c
+}
+
+func (c *Context) RequireUsername() *Context {
+	if c.Err != nil {
+		return c
+	}
+
+	if !model.IsValidUsername(c.Params.Username) {
+		c.SetInvalidParam("username")
+	}
+
+	return c
+}
+
+func (c *Context) RequirePostId() *Context {
+	if c.Err != nil {
+		return c
+	}
+
+	if !model.IsValidId(c.Params.PostId) {
+		c.SetInvalidURLParam("post_id")
+	}
+	return c
+}
+
+func (c *Context) RequirePolicyId() *Context {
+	if c.Err != nil {
+		return c
+	}
+
+	if !model.IsValidId(c.Params.PolicyId) {
+		c.SetInvalidURLParam("policy_id")
+	}
+	return c
+}
+
+func (c *Context) RequireAppId() *Context {
+	if c.Err != nil {
+		return c
+	}
+
+	if !model.IsValidId(c.Params.AppId) {
+		c.SetInvalidURLParam("app_id")
+	}
+	return c
+}
+
+func (c *Context) RequireOutgoingOAuthConnectionId() *Context {
+	if c.Err != nil {
+		return c
+	}
+
+	if !model.IsValidId(c.Params.OutgoingOAuthConnectionID) {
+		c.SetInvalidURLParam("outgoing_oauth_connection_id")
+	}
+	return c
+}
+
+func (c *Context) RequireFileId() *Context {
+	if c.Err != nil {
+		return c
+	}
+
+	if !model.IsValidId(c.Params.FileId) {
+		c.SetInvalidURLParam("file_id")
+	}
+
+	return c
+}
+
+func (c *Context) RequireUploadId() *Context {
+	if c.Err != nil {
+		return c
+	}
+
+	if !model.IsValidId(c.Params.UploadId) {
+		c.SetInvalidURLParam("upload_id")
+	}
+
+	return c
+}
+
+func (c *Context) RequireFilename() *Context {
+	if c.Err != nil {
+		return c
+	}
+
+	if c.Params.Filename == "" {
+		c.SetInvalidURLParam("filename")
+	}
+
+	return c
+}
+
+func (c *Context) RequirePluginId() *Context {
+	if c.Err != nil {
+		return c
+	}
+
+	if c.Params.PluginId == "" {
+		c.SetInvalidURLParam("plugin_id")
+	}
+
+	return c
+}
+
+func (c *Context) RequireReportId() *Context {
+	if c.Err != nil {
+		return c
+	}
+
+	if !model.IsValidId(c.Params.ReportId) {
+		c.SetInvalidURLParam("report_id")
+	}
+	return c
+}
+
+func (c *Context) RequireEmojiId() *Context {
+	if c.Err != nil {
+		return c
+	}
+
+	if !model.IsValidId(c.Params.EmojiId) {
+		c.SetInvalidURLParam("emoji_id")
+	}
+	return c
+}
+
+func (c *Context) RequireTeamName() *Context {
+	if c.Err != nil {
+		return c
+	}
+
+	if !model.IsValidTeamName(c.Params.TeamName) {
+		c.SetInvalidURLParam("team_name")
+	}
+
+	return c
+}
+
+func (c *Context) RequireChannelName() *Context {
+	if c.Err != nil {
+		return c
+	}
+
+	if !model.IsValidChannelIdentifier(c.Params.ChannelName) {
+		c.SetInvalidURLParam("channel_name")
+	}
+
+	return c
+}
+
+func (c *Context) SanitizeEmail() *Context {
+	if c.Err != nil {
+		return c
+	}
+	c.Params.Email = strings.ToLower(c.Params.Email)
+	if !model.IsValidEmail(c.Params.Email) {
+		c.SetInvalidURLParam("email")
+	}
+
+	return c
+}
+
+func (c *Context) RequireCategory() *Context {
+	if c.Err != nil {
+		return c
+	}
+
+	if !model.IsValidAlphaNumHyphenUnderscore(c.Params.Category, true) {
+		c.SetInvalidURLParam("category")
+	}
+
+	return c
+}
+
+func (c *Context) RequireService() *Context {
+	if c.Err != nil {
+		return c
+	}
+
+	if c.Params.Service == "" {
+		c.SetInvalidURLParam("service")
+	}
+
+	return c
+}
+
+func (c *Context) RequirePreferenceName() *Context {
+	if c.Err != nil {
+		return c
+	}
+
+	if !model.IsValidAlphaNumHyphenUnderscore(c.Params.PreferenceName, true) {
+		c.SetInvalidURLParam("preference_name")
+	}
+
+	return c
+}
+
+func (c *Context) RequireEmojiName() *Context {
+	if c.Err != nil {
+		return c
+	}
+
+	validName := regexp.MustCompile(`^[a-zA-Z0-9\-\+_]+$`)
+
+	if c.Params.EmojiName == "" || len(c.Params.EmojiName) > model.EmojiNameMaxLength || !validName.MatchString(c.Params.EmojiName) {
+		c.SetInvalidURLParam("emoji_name")
+	}
+
+	return c
+}
+
+func (c *Context) RequireHookId() *Context {
+	if c.Err != nil {
+		return c
+	}
+
+	if !model.IsValidId(c.Params.HookId) {
+		c.SetInvalidURLParam("hook_id")
+	}
+
+	return c
+}
+
+func (c *Context) RequireCommandId() *Context {
+	if c.Err != nil {
+		return c
+	}
+
+	if !model.IsValidId(c.Params.CommandId) {
+		c.SetInvalidURLParam("command_id")
+	}
+	return c
+}
+
+func (c *Context) RequireJobId() *Context {
+	if c.Err != nil {
+		return c
+	}
+
+	if !model.IsValidId(c.Params.JobId) {
+		c.SetInvalidURLParam("job_id")
+	}
+	return c
+}
+
+func (c *Context) RequireJobType() *Context {
+	if c.Err != nil {
+		return c
+	}
+
+	if c.Params.JobType == "" || len(c.Params.JobType) > 32 {
+		c.SetInvalidURLParam("job_type")
+	}
+	return c
+}
+
+func (c *Context) RequireRoleId() *Context {
+	if c.Err != nil {
+		return c
+	}
+
+	if !model.IsValidId(c.Params.RoleId) {
+		c.SetInvalidURLParam("role_id")
+	}
+	return c
+}
+
+func (c *Context) RequireFieldId() *Context {
+	if c.Err != nil {
+		return c
+	}
+
+	if !model.IsValidId(c.Params.FieldId) {
+		c.SetInvalidURLParam("field_id")
+	}
+	return c
+}
+
+func (c *Context) RequireGroupName() *Context {
+	if c.Err != nil {
+		return c
+	}
+
+	if !model.IsValidPropertyGroupName(c.Params.GroupName) {
+		c.SetInvalidURLParam("group_name")
+	}
+	return c
+}
+
+func (c *Context) RequireObjectType() *Context {
+	if c.Err != nil {
+		return c
+	}
+
+	if !model.IsValidPropertyFieldObjectType(c.Params.ObjectType) {
+		c.SetInvalidURLParam("object_type")
+	}
+	return c
+}
+
+func (c *Context) RequireTargetId() *Context {
+	if c.Err != nil {
+		return c
+	}
+
+	if !model.IsValidId(c.Params.TargetId) {
+		c.SetInvalidURLParam("target_id")
+	}
+	return c
+}
+
+func (c *Context) RequireSchemeId() *Context {
+	if c.Err != nil {
+		return c
+	}
+
+	if !model.IsValidId(c.Params.SchemeId) {
+		c.SetInvalidURLParam("scheme_id")
+	}
+	return c
+}
+
+func (c *Context) RequireRoleName() *Context {
+	if c.Err != nil {
+		return c
+	}
+
+	if !model.IsValidRoleName(c.Params.RoleName) {
+		c.SetInvalidURLParam("role_name")
+	}
+
+	return c
+}
+
+func (c *Context) RequireGroupId() *Context {
+	if c.Err != nil {
+		return c
+	}
+
+	if !model.IsValidId(c.Params.GroupId) {
+		c.SetInvalidURLParam("group_id")
+	}
+	return c
+}
+
+func (c *Context) RequireRemoteId() *Context {
+	if c.Err != nil {
+		return c
+	}
+
+	if c.Params.RemoteId == "" {
+		c.SetInvalidURLParam("remote_id")
+	}
+	return c
+}
+
+func (c *Context) RequireSyncableId() *Context {
+	if c.Err != nil {
+		return c
+	}
+
+	if !model.IsValidId(c.Params.SyncableId) {
+		c.SetInvalidURLParam("syncable_id")
+	}
+	return c
+}
+
+func (c *Context) RequireSyncableType() *Context {
+	if c.Err != nil {
+		return c
+	}
+
+	if c.Params.SyncableType != model.GroupSyncableTypeTeam && c.Params.SyncableType != model.GroupSyncableTypeChannel {
+		c.SetInvalidURLParam("syncable_type")
+	}
+	return c
+}
+
+func (c *Context) RequireBotUserId() *Context {
+	if c.Err != nil {
+		return c
+	}
+
+	if !model.IsValidId(c.Params.BotUserId) {
+		c.SetInvalidURLParam("bot_user_id")
+	}
+	return c
+}
+
+func (c *Context) RequireInvoiceId() *Context {
+	if c.Err != nil {
+		return c
+	}
+
+	if len(c.Params.InvoiceId) != 27 && c.Params.InvoiceId != model.UpcomingInvoice {
+		c.SetInvalidURLParam("invoice_id")
+	}
+
+	return c
+}
+
+func (c *Context) RequireContentReviewerId() *Context {
+	if c.Err != nil {
+		return c
+	}
+
+	if !model.IsValidId(c.Params.ContentReviewerId) {
+		c.SetInvalidURLParam("content_reviewer_id")
+	}
+	return c
+}
+
+func (c *Context) RequireRecapId() *Context {
+	if c.Err != nil {
+		return c
+	}
+
+	if !model.IsValidId(c.Params.RecapId) {
+		c.SetInvalidURLParam("recap_id")
+	}
+	return c
+}
+
+func (c *Context) RequireScheduledRecapId() *Context {
+	if c.Err != nil {
+		return c
+	}
+
+	if !model.IsValidId(c.Params.ScheduledRecapId) {
+		c.SetInvalidURLParam("scheduled_recap_id")
+	}
+	return c
+}
+
+func (c *Context) RequireViewId() *Context {
+	if c.Err != nil {
+		return c
+	}
+
+	if !model.IsValidId(c.Params.ViewId) {
+		c.SetInvalidURLParam("view_id")
+	}
+	return c
+}
+
+func (c *Context) RequirePermissionToManageSecureConnections() *Context {
+	if c.Err != nil {
+		return c
+	}
+
+	if !c.App.SessionHasPermissionTo(*c.AppContext.Session(), model.PermissionManageSecureConnections) {
+		c.SetPermissionError(model.PermissionManageSecureConnections)
+	}
+	return c
+}
+
+func (c *Context) RequirePermissionToManageSharedChannels() *Context {
+	if c.Err != nil {
+		return c
+	}
+
+	if !c.App.SessionHasPermissionTo(*c.AppContext.Session(), model.PermissionManageSharedChannels) {
+		c.SetPermissionError(model.PermissionManageSharedChannels)
+	}
+	return c
+}
+
+func (c *Context) RequirePermissionToManageSecureConnectionsOrSharedChannels() *Context {
+	if c.Err != nil {
+		return c
+	}
+
+	if !c.App.SessionHasPermissionToAny(*c.AppContext.Session(), []*model.Permission{
+		model.PermissionManageSecureConnections,
+		model.PermissionManageSharedChannels,
+	}) {
+		c.SetPermissionError(model.PermissionManageSecureConnections, model.PermissionManageSharedChannels)
+	}
+	return c
+}
+
+func (c *Context) GetRemoteID(r *http.Request) string {
+	return r.Header.Get(model.HeaderRemoteclusterId)
+}