mirror of
https://github.com/go-shiori/shiori.git
synced 2024-11-17 22:51:21 +08:00
317 lines
7.6 KiB
Go
317 lines
7.6 KiB
Go
package cmd
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import (
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"bytes"
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"crypto/rand"
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"encoding/json"
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"fmt"
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"github.com/RadhiFadlillah/shiori/assets"
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"github.com/RadhiFadlillah/shiori/model"
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"github.com/dgrijalva/jwt-go"
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"github.com/dgrijalva/jwt-go/request"
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"github.com/julienschmidt/httprouter"
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"github.com/sirupsen/logrus"
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"github.com/spf13/cobra"
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"golang.org/x/crypto/bcrypt"
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"html/template"
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"io"
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"mime"
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"net/http"
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fp "path/filepath"
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"strings"
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"time"
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)
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var (
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jwtKey []byte
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tplCache *template.Template
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serveCmd = &cobra.Command{
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Use: "serve",
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Short: "Serve web app for managing bookmarks.",
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Long: "Run a simple annd performant web server which serves the site for managing bookmarks." +
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"If --port flag is not used, it will use port 8080 by default.",
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Run: func(cmd *cobra.Command, args []string) {
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// Create JWT key
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jwtKey = make([]byte, 32)
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_, err := rand.Read(jwtKey)
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if err != nil {
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cError.Println("Failed generating key for token")
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return
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}
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// Prepare template
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tplFile, err := assets.ReadFile("content.html")
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if err != nil {
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cError.Println("Failed generating HTML template")
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return
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}
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tplCache, err = template.New("content.html").Parse(string(tplFile))
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if err != nil {
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cError.Println("Failed generating HTML template")
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return
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}
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// Create router
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router := httprouter.New()
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router.GET("/js/*filepath", serveFiles)
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router.GET("/css/*filepath", serveFiles)
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router.GET("/webfonts/*filepath", serveFiles)
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router.GET("/", serveIndexPage)
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router.GET("/login", serveLoginPage)
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router.GET("/bookmark/:id", serveBookmarkCache)
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router.POST("/api/login", apiLogin)
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router.GET("/api/bookmarks", apiGetBookmarks)
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router.POST("/api/bookmarks", apiInsertBookmarks)
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router.PUT("/api/bookmarks", apiUpdateBookmarks)
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router.DELETE("/api/bookmarks", apiDeleteBookmarks)
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// Route for panic
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router.PanicHandler = func(w http.ResponseWriter, r *http.Request, arg interface{}) {
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http.Error(w, fmt.Sprint(arg), 500)
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}
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port, _ := cmd.Flags().GetInt("port")
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url := fmt.Sprintf(":%d", port)
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logrus.Infoln("Serve shiori in", url)
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logrus.Fatalln(http.ListenAndServe(url, router))
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},
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}
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)
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func init() {
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serveCmd.Flags().IntP("port", "p", 8080, "Port that used by server")
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rootCmd.AddCommand(serveCmd)
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}
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func serveFiles(w http.ResponseWriter, r *http.Request, ps httprouter.Params) {
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// Read asset path
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path := r.URL.Path
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if path[0:1] == "/" {
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path = path[1:]
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}
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// Load asset
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asset, err := assets.ReadFile(path)
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checkError(err)
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// Set response header content type
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ext := fp.Ext(path)
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mimeType := mime.TypeByExtension(ext)
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if mimeType != "" {
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w.Header().Set("Content-Type", mimeType)
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}
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// Serve asset
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buffer := bytes.NewBuffer(asset)
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io.Copy(w, buffer)
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}
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func serveIndexPage(w http.ResponseWriter, r *http.Request, ps httprouter.Params) {
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// Check token
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err := checkToken(r)
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if err != nil {
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redirectPage(w, r, "/login")
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return
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}
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asset, err := assets.ReadFile("index.html")
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checkError(err)
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w.Header().Set("Content-Type", "text/html")
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buffer := bytes.NewBuffer(asset)
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io.Copy(w, buffer)
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}
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func serveLoginPage(w http.ResponseWriter, r *http.Request, ps httprouter.Params) {
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asset, err := assets.ReadFile("login.html")
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checkError(err)
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w.Header().Set("Content-Type", "text/html")
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buffer := bytes.NewBuffer(asset)
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io.Copy(w, buffer)
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}
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func serveBookmarkCache(w http.ResponseWriter, r *http.Request, ps httprouter.Params) {
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// Read param in URL
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id := ps.ByName("id")
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// Read bookmarks
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bookmarks, err := DB.GetBookmarks(true, id)
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checkError(err)
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if len(bookmarks) == 0 {
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panic(fmt.Errorf("No bookmark with matching index"))
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}
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// Read template
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err = tplCache.Execute(w, &bookmarks[0])
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checkError(err)
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}
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func apiLogin(w http.ResponseWriter, r *http.Request, ps httprouter.Params) {
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// Decode request
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var request model.LoginRequest
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err := json.NewDecoder(r.Body).Decode(&request)
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checkError(err)
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// Get account data from database
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accounts, err := DB.GetAccounts(request.Username, true)
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if err != nil || len(accounts) == 0 {
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panic(fmt.Errorf("Account is not exist"))
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}
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// Compare password with database
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account := accounts[0]
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err = bcrypt.CompareHashAndPassword([]byte(account.Password), []byte(request.Password))
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if err != nil {
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panic(fmt.Errorf("Username and password doesn't match"))
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}
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// Calculate expiration time
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nbf := time.Now()
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exp := time.Now().Add(12 * time.Hour)
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if request.Remember {
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exp = time.Now().Add(7 * 24 * time.Hour)
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}
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token := jwt.NewWithClaims(jwt.SigningMethodHS256, jwt.MapClaims{
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"nbf": nbf.Unix(),
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"exp": exp.Unix(),
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"sub": account.ID,
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})
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tokenString, err := token.SignedString(jwtKey)
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checkError(err)
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// Return token
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fmt.Fprint(w, tokenString)
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}
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func apiGetBookmarks(w http.ResponseWriter, r *http.Request, ps httprouter.Params) {
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// Get query parameter
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keyword := r.URL.Query().Get("keyword")
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strTags := r.URL.Query().Get("tags")
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tags := strings.Fields(strTags)
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// Check token
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err := checkAPIToken(r)
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checkError(err)
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// Fetch all bookmarks
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bookmarks, err := DB.SearchBookmarks(true, keyword, tags...)
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checkError(err)
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err = json.NewEncoder(w).Encode(&bookmarks)
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checkError(err)
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}
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func apiInsertBookmarks(w http.ResponseWriter, r *http.Request, ps httprouter.Params) {
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// Check token
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err := checkAPIToken(r)
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checkError(err)
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// Decode request
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request := model.Bookmark{}
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err = json.NewDecoder(r.Body).Decode(&request)
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checkError(err)
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// Save bookmark
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tags := make([]string, len(request.Tags))
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for i, tag := range request.Tags {
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tags[i] = tag.Name
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}
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book, err := addBookmark(request.URL, request.Title, request.Excerpt, tags, false)
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checkError(err)
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// Return new saved result
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err = json.NewEncoder(w).Encode(&book)
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checkError(err)
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}
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func apiUpdateBookmarks(w http.ResponseWriter, r *http.Request, ps httprouter.Params) {
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// Check token
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err := checkAPIToken(r)
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checkError(err)
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// Decode request
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request := model.Bookmark{}
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err = json.NewDecoder(r.Body).Decode(&request)
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checkError(err)
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// Convert tags and ID
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id := []string{fmt.Sprintf("%d", request.ID)}
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tags := make([]string, len(request.Tags))
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for i, tag := range request.Tags {
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tags[i] = tag.Name
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}
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// Update bookmark
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bookmarks, err := updateBookmarks(id, request.URL, request.Title, request.Excerpt, tags, false)
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checkError(err)
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// Return new saved result
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err = json.NewEncoder(w).Encode(&bookmarks[0])
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checkError(err)
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}
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func apiDeleteBookmarks(w http.ResponseWriter, r *http.Request, ps httprouter.Params) {
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// Check token
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err := checkAPIToken(r)
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checkError(err)
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// Decode request
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request := []string{}
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err = json.NewDecoder(r.Body).Decode(&request)
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checkError(err)
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// Delete bookmarks
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_, _, err = DB.DeleteBookmarks(request...)
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checkError(err)
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fmt.Fprint(w, request)
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}
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func checkToken(r *http.Request) error {
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tokenCookie, err := r.Cookie("token")
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if err != nil {
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return fmt.Errorf("Token is not exist")
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}
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token, err := jwt.Parse(tokenCookie.Value, jwtKeyFunc)
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if err != nil {
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return err
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}
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claims := token.Claims.(jwt.MapClaims)
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return claims.Valid()
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}
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func checkAPIToken(r *http.Request) error {
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token, err := request.ParseFromRequest(r, request.AuthorizationHeaderExtractor, jwtKeyFunc)
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if err != nil {
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return err
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}
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claims := token.Claims.(jwt.MapClaims)
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return claims.Valid()
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}
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func jwtKeyFunc(token *jwt.Token) (interface{}, error) {
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if _, ok := token.Method.(*jwt.SigningMethodHMAC); !ok {
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return nil, fmt.Errorf("Unexpected signing method")
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}
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return jwtKey, nil
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}
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func redirectPage(w http.ResponseWriter, r *http.Request, url string) {
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w.Header().Set("Cache-Control", "no-cache, no-store, must-revalidate")
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w.Header().Set("Pragma", "no-cache")
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w.Header().Set("Expires", "0")
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http.Redirect(w, r, url, 301)
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}
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