[MM-28422] Enable processing of import files through API (#16062)

* Implement unzip function

* Implement FileSize method

* Implement path rewriting for bulk import

* Small improvements

* Add ImportSettings to config

* Implement ListImports API endpoint

* Enable uploading import files

* Implement import process job

* Add missing license headers

* Address reviews

* Make path sanitization a bit smarter

* Clean path before calculating Dir

* [MM-30008] Add mmctl support for file imports (#16301)

* Add mmctl support for import files

* Improve test

* Remove unnecessary handlers

* Use th.TestForSystemAdminAndLocal

* Make nouser id a constant

api4/user_local.go

@@ -38,6 +38,8 @@ func (api *API) InitUserLocal() {
 
 	api.BaseRoutes.Users.Handle("/migrate_auth/ldap", api.ApiLocal(migrateAuthToLDAP)).Methods("POST")
 	api.BaseRoutes.Users.Handle("/migrate_auth/saml", api.ApiLocal(migrateAuthToSaml)).Methods("POST")
+
+	api.BaseRoutes.User.Handle("/uploads", api.ApiLocal(localGetUploadsForUser)).Methods("GET")
 }
 
 func localGetUsers(c *Context, w http.ResponseWriter, r *http.Request) {
@@ -315,3 +317,13 @@ func localGetUserByEmail(c *Context, w http.ResponseWriter, r *http.Request) {
 	w.Header().Set(model.HEADER_ETAG_SERVER, etag)
 	w.Write([]byte(user.ToJson()))
 }
+
+func localGetUploadsForUser(c *Context, w http.ResponseWriter, r *http.Request) {
+	uss, err := c.App.GetUploadSessionsForUser(c.Params.UserId)
+	if err != nil {
+		c.Err = err
+		return
+	}
+
+	w.Write([]byte(model.UploadSessionsToJson(uss)))
+}