570 lines
14 KiB
Go
570 lines
14 KiB
Go
package api
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import (
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"context"
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"encoding/json"
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"fmt"
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"io/ioutil"
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"log"
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"net/http"
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"path/filepath"
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"strconv"
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"strings"
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"time"
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"github.com/gorilla/mux"
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"github.com/mattermost/focalboard/server/app"
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"github.com/mattermost/focalboard/server/model"
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"github.com/mattermost/focalboard/server/utils"
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)
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const (
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HEADER_REQUESTED_WITH = "X-Requested-With"
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HEADER_REQUESTED_WITH_XML = "XMLHttpRequest"
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)
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// ----------------------------------------------------------------------------------------------------
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// REST APIs
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type API struct {
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appBuilder func() *app.App
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singleUser bool
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}
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func NewAPI(appBuilder func() *app.App, singleUser bool) *API {
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return &API{appBuilder: appBuilder, singleUser: singleUser}
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}
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func (a *API) app() *app.App {
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return a.appBuilder()
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}
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func (a *API) RegisterRoutes(r *mux.Router) {
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apiv1 := r.PathPrefix("/api/v1").Subrouter()
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apiv1.Use(a.requireCSRFToken)
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apiv1.HandleFunc("/blocks", a.sessionRequired(a.handleGetBlocks)).Methods("GET")
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apiv1.HandleFunc("/blocks", a.sessionRequired(a.handlePostBlocks)).Methods("POST")
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apiv1.HandleFunc("/blocks/{blockID}", a.sessionRequired(a.handleDeleteBlock)).Methods("DELETE")
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apiv1.HandleFunc("/blocks/{blockID}/subtree", a.attachSession(a.handleGetSubTree, false)).Methods("GET")
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apiv1.HandleFunc("/users/me", a.sessionRequired(a.handleGetMe)).Methods("GET")
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apiv1.HandleFunc("/users/{userID}", a.sessionRequired(a.handleGetUser)).Methods("GET")
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apiv1.HandleFunc("/users/{userID}/changepassword", a.sessionRequired(a.handleChangePassword)).Methods("POST")
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apiv1.HandleFunc("/login", a.handleLogin).Methods("POST")
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apiv1.HandleFunc("/register", a.handleRegister).Methods("POST")
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apiv1.HandleFunc("/files", a.sessionRequired(a.handleUploadFile)).Methods("POST")
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apiv1.HandleFunc("/blocks/export", a.sessionRequired(a.handleExport)).Methods("GET")
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apiv1.HandleFunc("/blocks/import", a.sessionRequired(a.handleImport)).Methods("POST")
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apiv1.HandleFunc("/sharing/{rootID}", a.sessionRequired(a.handlePostSharing)).Methods("POST")
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apiv1.HandleFunc("/sharing/{rootID}", a.sessionRequired(a.handleGetSharing)).Methods("GET")
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apiv1.HandleFunc("/workspace", a.sessionRequired(a.handleGetWorkspace)).Methods("GET")
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apiv1.HandleFunc("/workspace/regenerate_signup_token", a.sessionRequired(a.handlePostWorkspaceRegenerateSignupToken)).Methods("POST")
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// Get Files API
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files := r.PathPrefix("/files").Subrouter()
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files.HandleFunc("/{filename}", a.sessionRequired(a.handleServeFile)).Methods("GET")
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}
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func (a *API) RegisterAdminRoutes(r *mux.Router) {
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r.HandleFunc("/api/v1/admin/users/{username}/password", a.adminRequired(a.handleAdminSetPassword)).Methods("POST")
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}
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func (a *API) requireCSRFToken(next http.Handler) http.Handler {
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return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
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if !a.checkCSRFToken(r) {
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log.Println("checkCSRFToken FAILED")
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errorResponse(w, http.StatusBadRequest, nil, nil)
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return
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}
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next.ServeHTTP(w, r)
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})
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}
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func (a *API) checkCSRFToken(r *http.Request) bool {
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token := r.Header.Get(HEADER_REQUESTED_WITH)
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if token == HEADER_REQUESTED_WITH_XML {
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return true
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}
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return false
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}
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func (a *API) handleGetBlocks(w http.ResponseWriter, r *http.Request) {
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query := r.URL.Query()
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parentID := query.Get("parent_id")
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blockType := query.Get("type")
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blocks, err := a.app().GetBlocks(parentID, blockType)
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if err != nil {
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errorResponse(w, http.StatusInternalServerError, nil, err)
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return
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}
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// log.Printf("GetBlocks parentID: %s, type: %s, %d result(s)", parentID, blockType, len(blocks))
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json, err := json.Marshal(blocks)
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if err != nil {
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errorResponse(w, http.StatusInternalServerError, nil, err)
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return
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}
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jsonBytesResponse(w, http.StatusOK, json)
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}
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func stampModifiedByUser(r *http.Request, blocks []model.Block) {
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ctx := r.Context()
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session := ctx.Value("session").(*model.Session)
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userID := session.UserID
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if userID == "single-user" {
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userID = ""
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}
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for i := range blocks {
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blocks[i].ModifiedBy = userID
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}
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}
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func (a *API) handlePostBlocks(w http.ResponseWriter, r *http.Request) {
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requestBody, err := ioutil.ReadAll(r.Body)
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if err != nil {
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errorResponse(w, http.StatusInternalServerError, nil, err)
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return
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}
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var blocks []model.Block
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err = json.Unmarshal(requestBody, &blocks)
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if err != nil {
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errorResponse(w, http.StatusInternalServerError, nil, err)
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return
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}
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for _, block := range blocks {
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// Error checking
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if len(block.Type) < 1 {
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errorData := map[string]string{"description": "missing type", "id": block.ID}
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errorResponse(w, http.StatusBadRequest, errorData, nil)
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return
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}
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if block.CreateAt < 1 {
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errorData := map[string]string{"description": "invalid createAt", "id": block.ID}
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errorResponse(w, http.StatusBadRequest, errorData, nil)
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return
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}
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if block.UpdateAt < 1 {
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errorData := map[string]string{"description": "invalid UpdateAt", "id": block.ID}
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errorResponse(w, http.StatusBadRequest, errorData, nil)
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return
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}
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}
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stampModifiedByUser(r, blocks)
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err = a.app().InsertBlocks(blocks)
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if err != nil {
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errorResponse(w, http.StatusInternalServerError, nil, err)
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return
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}
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log.Printf("POST Blocks %d block(s)", len(blocks))
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jsonStringResponse(w, http.StatusOK, "{}")
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}
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func (a *API) handleGetUser(w http.ResponseWriter, r *http.Request) {
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vars := mux.Vars(r)
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userID := vars["userID"]
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user, err := a.app().GetUser(userID)
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if err != nil {
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errorResponse(w, http.StatusInternalServerError, nil, err)
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return
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}
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userData, err := json.Marshal(user)
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if err != nil {
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errorResponse(w, http.StatusInternalServerError, nil, err)
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return
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}
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jsonStringResponse(w, http.StatusOK, string(userData))
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}
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func (a *API) handleGetMe(w http.ResponseWriter, r *http.Request) {
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ctx := r.Context()
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session := ctx.Value("session").(*model.Session)
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var user *model.User
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var err error
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if session.UserID == "single-user" {
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now := time.Now().Unix()
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user = &model.User{
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ID: "single-user",
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Username: "single-user",
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Email: "single-user",
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CreateAt: now,
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UpdateAt: now,
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}
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} else {
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user, err = a.app().GetUser(session.UserID)
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if err != nil {
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errorResponse(w, http.StatusInternalServerError, nil, err)
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return
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}
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}
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userData, err := json.Marshal(user)
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if err != nil {
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errorResponse(w, http.StatusInternalServerError, nil, err)
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return
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}
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jsonStringResponse(w, http.StatusOK, string(userData))
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}
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func (a *API) handleDeleteBlock(w http.ResponseWriter, r *http.Request) {
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ctx := r.Context()
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session := ctx.Value("session").(*model.Session)
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userID := session.UserID
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vars := mux.Vars(r)
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blockID := vars["blockID"]
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err := a.app().DeleteBlock(blockID, userID)
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if err != nil {
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errorResponse(w, http.StatusInternalServerError, nil, err)
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return
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}
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log.Printf("DELETE Block %s", blockID)
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jsonStringResponse(w, http.StatusOK, "{}")
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}
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func (a *API) handleGetSubTree(w http.ResponseWriter, r *http.Request) {
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vars := mux.Vars(r)
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blockID := vars["blockID"]
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// If not authenticated (no session), check that block is publicly shared
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ctx := r.Context()
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session, _ := ctx.Value("session").(*model.Session)
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if session == nil {
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query := r.URL.Query()
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readToken := query.Get("read_token")
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// Require read token
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if len(readToken) < 1 {
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errorResponse(w, http.StatusUnauthorized, map[string]string{"error": "No read_token"}, nil)
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return
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}
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isValid, err := a.app().IsValidReadToken(blockID, readToken)
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if err != nil {
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errorResponse(w, http.StatusInternalServerError, nil, err)
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return
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}
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if !isValid {
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errorResponse(w, http.StatusUnauthorized, nil, nil)
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return
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}
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}
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query := r.URL.Query()
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levels, err := strconv.ParseInt(query.Get("l"), 10, 32)
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if err != nil {
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levels = 2
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}
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if levels != 2 && levels != 3 {
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log.Printf(`ERROR Invalid levels: %d`, levels)
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errorData := map[string]string{"description": "invalid levels"}
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errorResponse(w, http.StatusInternalServerError, errorData, nil)
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return
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}
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blocks, err := a.app().GetSubTree(blockID, int(levels))
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if err != nil {
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errorResponse(w, http.StatusInternalServerError, nil, err)
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return
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}
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log.Printf("GetSubTree (%v) blockID: %s, %d result(s)", levels, blockID, len(blocks))
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json, err := json.Marshal(blocks)
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if err != nil {
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errorResponse(w, http.StatusInternalServerError, nil, err)
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return
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}
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jsonBytesResponse(w, http.StatusOK, json)
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}
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func (a *API) handleExport(w http.ResponseWriter, r *http.Request) {
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blocks, err := a.app().GetAllBlocks()
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if err != nil {
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errorResponse(w, http.StatusInternalServerError, nil, err)
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return
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}
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log.Printf("%d raw block(s)", len(blocks))
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blocks = filterOrphanBlocks(blocks)
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log.Printf("EXPORT %d filtered block(s)", len(blocks))
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json, err := json.Marshal(blocks)
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if err != nil {
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errorResponse(w, http.StatusInternalServerError, nil, err)
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return
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}
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jsonBytesResponse(w, http.StatusOK, json)
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}
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func filterOrphanBlocks(blocks []model.Block) (ret []model.Block) {
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queue := make([]model.Block, 0)
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var childrenOfBlockWithID = make(map[string]*[]model.Block)
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// Build the trees from nodes
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for _, block := range blocks {
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if len(block.ParentID) == 0 {
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// Queue root blocks to process first
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queue = append(queue, block)
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} else {
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siblings := childrenOfBlockWithID[block.ParentID]
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if siblings != nil {
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*siblings = append(*siblings, block)
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} else {
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siblings := []model.Block{block}
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childrenOfBlockWithID[block.ParentID] = &siblings
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}
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}
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}
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// Map the trees to an array, which skips orphaned nodes
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blocks = make([]model.Block, 0)
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for len(queue) > 0 {
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block := queue[0]
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queue = queue[1:] // dequeue
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blocks = append(blocks, block)
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children := childrenOfBlockWithID[block.ID]
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if children != nil {
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queue = append(queue, (*children)...)
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}
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}
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return blocks
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}
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func arrayContainsBlockWithID(array []model.Block, blockID string) bool {
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for _, item := range array {
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if item.ID == blockID {
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return true
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}
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}
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return false
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}
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func (a *API) handleImport(w http.ResponseWriter, r *http.Request) {
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requestBody, err := ioutil.ReadAll(r.Body)
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if err != nil {
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errorResponse(w, http.StatusInternalServerError, nil, err)
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return
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}
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var blocks []model.Block
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err = json.Unmarshal(requestBody, &blocks)
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if err != nil {
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errorResponse(w, http.StatusInternalServerError, nil, err)
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return
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}
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stampModifiedByUser(r, blocks)
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err = a.app().InsertBlocks(blocks)
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if err != nil {
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errorResponse(w, http.StatusInternalServerError, nil, err)
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return
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}
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log.Printf("IMPORT Blocks %d block(s)", len(blocks))
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jsonStringResponse(w, http.StatusOK, "{}")
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}
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// Sharing
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func (a *API) handleGetSharing(w http.ResponseWriter, r *http.Request) {
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vars := mux.Vars(r)
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rootID := vars["rootID"]
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sharing, err := a.app().GetSharing(rootID)
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if err != nil {
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errorResponse(w, http.StatusInternalServerError, nil, err)
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return
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}
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sharingData, err := json.Marshal(sharing)
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if err != nil {
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errorResponse(w, http.StatusInternalServerError, nil, err)
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return
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}
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log.Printf("GET sharing %s", rootID)
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jsonStringResponse(w, http.StatusOK, string(sharingData))
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}
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func (a *API) handlePostSharing(w http.ResponseWriter, r *http.Request) {
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requestBody, err := ioutil.ReadAll(r.Body)
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if err != nil {
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errorResponse(w, http.StatusInternalServerError, nil, err)
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return
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}
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var sharing model.Sharing
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err = json.Unmarshal(requestBody, &sharing)
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if err != nil {
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errorResponse(w, http.StatusInternalServerError, nil, err)
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return
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}
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// Stamp ModifiedBy
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ctx := r.Context()
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session := ctx.Value("session").(*model.Session)
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userID := session.UserID
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if userID == "single-user" {
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userID = ""
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}
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sharing.ModifiedBy = userID
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err = a.app().UpsertSharing(sharing)
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if err != nil {
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errorResponse(w, http.StatusInternalServerError, nil, err)
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return
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}
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log.Printf("POST sharing %s", sharing.ID)
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jsonStringResponse(w, http.StatusOK, "{}")
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}
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// Workspace
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func (a *API) handleGetWorkspace(w http.ResponseWriter, r *http.Request) {
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workspace, err := a.app().GetRootWorkspace()
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if err != nil {
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errorResponse(w, http.StatusInternalServerError, nil, err)
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return
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}
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workspaceData, err := json.Marshal(workspace)
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if err != nil {
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errorResponse(w, http.StatusInternalServerError, nil, err)
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return
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}
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jsonStringResponse(w, http.StatusOK, string(workspaceData))
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}
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func (a *API) handlePostWorkspaceRegenerateSignupToken(w http.ResponseWriter, r *http.Request) {
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workspace, err := a.app().GetRootWorkspace()
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if err != nil {
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errorResponse(w, http.StatusInternalServerError, nil, err)
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return
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}
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workspace.SignupToken = utils.CreateGUID()
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err = a.app().UpsertWorkspaceSignupToken(*workspace)
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if err != nil {
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errorResponse(w, http.StatusInternalServerError, nil, err)
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return
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}
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jsonStringResponse(w, http.StatusOK, "{}")
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}
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// File upload
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func (a *API) handleServeFile(w http.ResponseWriter, r *http.Request) {
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vars := mux.Vars(r)
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filename := vars["filename"]
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contentType := "image/jpg"
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fileExtension := strings.ToLower(filepath.Ext(filename))
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if fileExtension == "png" {
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contentType = "image/png"
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}
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w.Header().Set("Content-Type", contentType)
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filePath := a.app().GetFilePath(filename)
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http.ServeFile(w, r, filePath)
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}
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func (a *API) handleUploadFile(w http.ResponseWriter, r *http.Request) {
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fmt.Println(`handleUploadFile`)
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file, handle, err := r.FormFile("file")
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if err != nil {
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fmt.Fprintf(w, "%v", err)
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return
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}
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defer file.Close()
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log.Printf(`handleUploadFile, filename: %s`, handle.Filename)
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url, err := a.app().SaveFile(file, handle.Filename)
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if err != nil {
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jsonStringResponse(w, http.StatusInternalServerError, `{}`)
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return
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}
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log.Printf(`saveFile, url: %s`, url)
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json := fmt.Sprintf(`{ "url": "%s" }`, url)
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jsonStringResponse(w, http.StatusOK, json)
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}
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// Response helpers
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func jsonStringResponse(w http.ResponseWriter, code int, message string) {
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w.Header().Set("Content-Type", "application/json")
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w.WriteHeader(code)
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fmt.Fprint(w, message)
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}
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func jsonBytesResponse(w http.ResponseWriter, code int, json []byte) {
|
|
w.Header().Set("Content-Type", "application/json")
|
|
w.WriteHeader(code)
|
|
w.Write(json)
|
|
}
|
|
|
|
func errorResponse(w http.ResponseWriter, code int, message map[string]string, sourceError error) {
|
|
log.Printf("API ERROR %d, err: %v\n", code, sourceError)
|
|
w.Header().Set("Content-Type", "application/json")
|
|
data, err := json.Marshal(message)
|
|
if err != nil {
|
|
data = []byte("{}")
|
|
}
|
|
w.WriteHeader(code)
|
|
w.Write(data)
|
|
}
|
|
|
|
func addUserID(rw http.ResponseWriter, req *http.Request, next http.Handler) {
|
|
ctx := context.WithValue(req.Context(), "userid", req.Header.Get("userid"))
|
|
req = req.WithContext(ctx)
|
|
next.ServeHTTP(rw, req)
|
|
}
|