Add /api/block/ API

TODO.md

@@ -1,5 +1,9 @@
 # TODO
 
+## Remove old/normal page editor
+
+- The normal page editor is still available. It should be removed.
+
 ## API for blocks
 
 ### POST /api/block/append

file.go

@@ -145,16 +145,26 @@ func (fp *FilePages) Get(name string) Page {
 	t, err := time.Parse("2006-01-02", name)
 	if err == nil {
 		date = true
-		names = append(names, formatDateTitle(t), name)
+		names = append(names, formatDatePageName(t), name)
+	} else {
+		names = append(names, name)
 	}
+
 	for _, name := range names {
+		log.Printf("Trying %q", name)
 		blocks, err := loadBlocks(fp.dirname, name)
 		if err != nil && errors.Is(err, BlockNotFound) {
 			continue
 		}
 		return fp.blocksBackendGet(name, blocks, titleOption{date, t})
 	}
-	return fp.oldPagesBackend(name)
+
+	page, err := fp.oldPagesBackend(name)
+	if err != nil {
+		return fp.blocksBackendGet(name, BlockResponse{ParentID: "root", PageID: name}, titleOption{date, t})
+	}
+
+	return page
 }
 
 func (fp *FilePages) blocksBackendGet(name string, blocks BlockResponse, option titleOption) Page {
@@ -176,6 +186,9 @@ func (fp *FilePages) blocksBackendGet(name string, blocks BlockResponse, option
 	}
 
 	title := formatTitle(blocks.Texts[name], option)
+	if title == "" {
+		title = cleanTitle(name)
+	}
 
 	return Page{
 		Name:    name,
@@ -194,7 +207,7 @@ func formatTitle(title string, option titleOption) string {
 	return title
 }
 
-func (fp *FilePages) oldPagesBackend(title string) Page {
+func (fp *FilePages) oldPagesBackend(title string) (Page, error) {
 	name := strings.Replace(title, " ", "_", -1)
 	title = strings.Replace(title, "_", " ", -1)
 
@@ -211,7 +224,7 @@ func (fp *FilePages) oldPagesBackend(title string) Page {
 			Name:    name,
 			Content: "",
 			Refs:    refs,
-		}
+		}, err
 	}
 
 	defer f.Close()
@@ -223,7 +236,7 @@ func (fp *FilePages) oldPagesBackend(title string) Page {
 			Title:   title,
 			Content: "",
 			Refs:    refs,
-		}
+		}, err
 	}
 
 	return Page{
@@ -231,7 +244,7 @@ func (fp *FilePages) oldPagesBackend(title string) Page {
 		Title:   title,
 		Content: string(body),
 		Refs:    refs,
-	}
+	}, nil
 }
 
 func (fp *FilePages) Save(p string, page Page, summary, author string) error {
@@ -506,13 +519,13 @@ func loadBlocks(dirname, rootBlockID string) (BlockResponse, error) {
 func loadBlock(dirname, blockID string) (Block, error) {
 	f, err := os.Open(filepath.Join(dirname, BlocksDirectory, blockID))
 	if err != nil {
-		return Block{}, fmt.Errorf("%q: %w", BlockNotFound)
+		return Block{}, fmt.Errorf("%q: %w", blockID, BlockNotFound)
 	}
 	defer f.Close()
 	var block Block
 	err = json.NewDecoder(f).Decode(&block)
 	if err != nil {
-		return Block{}, fmt.Errorf("%q: %v", err)
+		return Block{}, fmt.Errorf("%q: %v", blockID, err)
 	}
 	return block, nil
 }

main.go

@@ -2,6 +2,7 @@ package main
 
 import (
 	"bytes"
+	"context"
 	"encoding/json"
 	"flag"
 	"fmt"
@@ -26,12 +27,19 @@ func init() {
 	log.SetFlags(log.Lshortfile)
 }
 
+type authorizedKey string
+
+var (
+	authKey = authorizedKey("authorizedKey")
+)
+
 var (
 	mp PagesRepository
 
 	port        = flag.Int("port", 8080, "listen port")
 	baseurl     = flag.String("baseurl", "", "baseurl")
-	redirectURI string = ""
+	redirectURI = ""
+	authToken   = "XVlBzgbaiCMRAjWw"
 )
 
 type Backref struct {
@@ -620,6 +628,10 @@ func (h *indexHandler) ServeHTTP(w http.ResponseWriter, r *http.Request) {
 	}
 
 	page := r.URL.Path[1:]
+	if page == "favicon.ico" {
+		http.Error(w, "Not Found", 404)
+		return
+	}
 	page = resolvePageName(page)
 
 	mpPage := mp.Get(page)
@@ -636,7 +648,7 @@ func (h *indexHandler) ServeHTTP(w http.ResponseWriter, r *http.Request) {
 	var rawMsg json.RawMessage
 	err = json.NewDecoder(strings.NewReader(pageText)).Decode(&rawMsg)
 
-	title := cleanTitle(page)
+	title := cleanTitle(mpPage.Title)
 
 	jsonPage := pageText != "" && err == nil
 	if jsonPage {
@@ -889,7 +901,65 @@ func main() {
 	mp = NewFilePages(dataDir, searchIndex)
 
 	http.Handle("/auth/", &authHandler{})
-	http.HandleFunc("/api/document/append", func(w http.ResponseWriter, r *http.Request) {
+	http.HandleFunc("/api/block/", wrapAuth(func(w http.ResponseWriter, r *http.Request) {
+		defer r.Body.Close()
+
+		if !r.Context().Value(authKey).(bool) {
+			http.Error(w, "Unauthorized", 401)
+			return
+		}
+
+		if r.Method != "GET" {
+			http.Error(w, "Method Not Allowed", http.StatusMethodNotAllowed)
+			return
+		}
+
+
+		format := r.URL.Query().Get("format")
+		if format == "" {
+			format = "json"
+		}
+
+		if !(format == "json" || format == "metakv") {
+			http.Error(w, "unknown format", http.StatusBadRequest)
+		}
+
+		page := r.URL.Path
+		page = strings.TrimPrefix(page, "/api/block/")
+		page = resolvePageName(page)
+
+		mpPage := mp.Get(page)
+		pageText := mpPage.Content
+		if pageText == "" {
+			http.NotFound(w, r)
+			return
+		}
+
+		if format == "json" {
+			w.Header().Set("Content-Type", "application/json")
+			w.Header().Set("Cache-Control", "no-store")
+			// Shortcut for json output
+			_, err := io.WriteString(w, pageText)
+			if err != nil {
+				http.Error(w, err.Error(), 500)
+			}
+		} else if format == "metakv" {
+			so, err := createStructuredFormat(mpPage)
+			if err != nil {
+				http.Error(w, err.Error(), 500)
+				return
+			}
+			w.Header().Set("Content-Type", "application/json")
+			w.Header().Set("Cache-Control", "no-store")
+			enc := json.NewEncoder(w)
+			enc.SetIndent("", "  ")
+			err = enc.Encode(so)
+			if err != nil {
+				http.Error(w, err.Error(), 500)
+			}
+		}
+	}))
+	http.HandleFunc("/api/block/append", wrapAuth(func(w http.ResponseWriter, r *http.Request) {
 		err := r.ParseForm()
 		if err != nil {
 			http.Error(w, err.Error(), 400)
@@ -904,6 +974,7 @@ func main() {
 		page := mp.Get(id)
 		log.Println(page.Content)
 		var listItems []ListItem
+		id = page.Name // Use the name that was actually loaded
 
 		err = json.NewDecoder(strings.NewReader(page.Content)).Decode(&listItems)
 		if err != nil && err != io.EOF {
@@ -912,8 +983,9 @@ func main() {
 		}
 
 		newId := &ID{"1", true}
+		generatedID := newId.NewID()
 		listItems = append(listItems, ListItem{
-			ID:       newId.NewID(),
+			ID:       generatedID,
 			Indented: 0,
 			Text:     r.Form.Get("text"),
 			Fleeting: false,
@@ -936,8 +1008,10 @@ func main() {
 			http.Error(w, fmt.Sprintf("while saving: %s", err.Error()), 500)
 			return
 		}
+
+		fmt.Println(generatedID)
 		return
-	})
+	}))
 	http.HandleFunc("/links.json", func(w http.ResponseWriter, r *http.Request) {
 		w.Header().Set("Content-Type", "application/json")
 		http.ServeFile(w, r, filepath.Join(dataDir, LinksFile))
@@ -997,6 +1071,20 @@ func main() {
 	log.Fatal(http.ListenAndServe(fmt.Sprintf(":%d", *port), nil))
 }
 
+func wrapAuth(handler http.HandlerFunc) http.HandlerFunc {
+	return func(w http.ResponseWriter, r *http.Request) {
+		auth := r.Header.Get("Authorization")
+		if auth == "" || auth == "Token "+authToken {
+			r = r.WithContext(context.WithValue(r.Context(), authKey, auth != ""))
+			// auth == "", require cookie in handler
+			handler.ServeHTTP(w, r)
+			return
+		}
+
+		http.Error(w, "Authorization Required", 401)
+	}
+}
+
 func createSearchIndex(dataDir, indexName string) (bleve.Index, error) {
 	indexDir := filepath.Join(dataDir, indexName)
 	if _, err := os.Stat(indexDir); os.IsNotExist(err) {

session.go

@@ -2,6 +2,7 @@ package main
 
 import (
 	"encoding/json"
+	"errors"
 	"fmt"
 	"net/http"
 	"os"
@@ -71,24 +72,20 @@ func getSessionCookie(w http.ResponseWriter, r *http.Request) (string, error) {
 	c, err := r.Cookie("session")
 	var sessionVar string
 
-	if err != nil {
+	if err != nil && errors.Is(err, http.ErrNoCookie) {
-		if err == http.ErrNoCookie {
 		sessionVar = RandStringBytes(16)
-			newCookie := &http.Cookie{
+		c = &http.Cookie{
 			Name:    "session",
 			Value:   sessionVar,
 			Expires: time.Now().Add(24 * time.Hour),
 			Path:    "/",
 		}
-
-			http.SetCookie(w, newCookie)
-			return sessionVar, nil
-		}
-
-		return "", err
 	} else {
 		sessionVar = c.Value
+		c.Expires = time.Now().Add(24 * time.Hour)
 	}
 
+	http.SetCookie(w, c)
+
 	return sessionVar, nil
 }

util.go

@@ -99,10 +99,28 @@ func (sw *stopwatch) Stop() {
 
 func todayPage() string {
 	now := time.Now()
-	return formatDateTitle(now)
+	return formatDatePageName(now)
 }
 
 func formatDateTitle(date time.Time) string {
+	months := []string{
+		"",
+		"januari",
+		"februari",
+		"maart",
+		"april",
+		"mei",
+		"juni",
+		"juli",
+		"augustus",
+		"september",
+		"oktober",
+		"november",
+		"december",
+	}
+	return fmt.Sprintf("%d %s %d", date.Day(), months[date.Month()], date.Year())
+}
+func formatDatePageName(date time.Time) string {
 	months := []string{
 		"",
 		"januari",