mirror of
https://github.com/go-shiori/shiori.git
synced 2024-11-15 21:55:31 +08:00
371 lines
8.8 KiB
Go
371 lines
8.8 KiB
Go
package webserver
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import (
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"encoding/json"
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"fmt"
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"math"
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"net/http"
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nurl "net/url"
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"os"
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"path"
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fp "path/filepath"
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"strconv"
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"strings"
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"time"
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"github.com/go-shiori/go-readability"
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"github.com/go-shiori/shiori/internal/database"
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"github.com/go-shiori/shiori/internal/model"
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"github.com/gofrs/uuid"
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"github.com/julienschmidt/httprouter"
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"golang.org/x/crypto/bcrypt"
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)
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// apiLogin is handler for POST /api/login
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func (h *handler) 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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// Prepare function to generate session
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genSession := func(expTime time.Duration) {
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// Create session ID
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sessionID, err := uuid.NewV4()
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checkError(err)
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// Save session ID to cache
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strSessionID := sessionID.String()
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h.SessionCache.Set(strSessionID, request.Username, expTime)
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// Save user's session IDs to cache as well
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// useful for mass logout
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sessionIDs := []string{strSessionID}
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if val, found := h.UserCache.Get(request.Username); found {
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sessionIDs = val.([]string)
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sessionIDs = append(sessionIDs, strSessionID)
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}
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h.UserCache.Set(request.Username, sessionIDs, -1)
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// Return session ID to user in cookies
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http.SetCookie(w, &http.Cookie{
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Name: "session-id",
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Value: strSessionID,
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Path: "/",
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Expires: time.Now().Add(expTime),
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})
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w.Header().Set("Content-Type", "text/plain")
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fmt.Fprint(w, strSessionID)
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}
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// Check if user's database is empty.
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// If database still empty, and user uses default account, let him in.
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accounts, err := h.DB.GetAccounts("")
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checkError(err)
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if len(accounts) == 0 && request.Username == "shiori" && request.Password == "gopher" {
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genSession(time.Hour)
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return
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}
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// Get account data from database
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account, exist := h.DB.GetAccount(request.Username)
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if !exist {
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panic(fmt.Errorf("username doesn't exist"))
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}
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// Compare password with database
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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 don't match"))
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}
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// Calculate expiration time
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expTime := time.Hour
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if request.Remember > 0 {
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expTime = time.Duration(request.Remember) * time.Hour
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} else {
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expTime = -1
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}
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// Create session
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genSession(expTime)
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}
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// apiLogout is handler for POST /api/logout
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func (h *handler) apiLogout(w http.ResponseWriter, r *http.Request, ps httprouter.Params) {
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// Get session ID
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sessionID, err := r.Cookie("session-id")
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if err != nil {
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if err == http.ErrNoCookie {
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panic(fmt.Errorf("session is expired"))
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} else {
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panic(err)
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}
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}
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h.SessionCache.Delete(sessionID.Value)
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fmt.Fprint(w, 1)
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}
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// apiGetBookmarks is handler for GET /api/bookmarks
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func (h *handler) apiGetBookmarks(w http.ResponseWriter, r *http.Request, ps httprouter.Params) {
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// Make sure session still valid
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err := h.validateSession(r)
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checkError(err)
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// Get URL queries
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keyword := r.URL.Query().Get("keyword")
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strTags := r.URL.Query().Get("tags")
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strPage := r.URL.Query().Get("page")
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tags := strings.Split(strTags, ",")
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if len(tags) == 1 && tags[0] == "" {
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tags = []string{}
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}
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page, _ := strconv.Atoi(strPage)
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if page < 1 {
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page = 1
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}
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// Prepare filter for database
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searchOptions := database.GetBookmarksOptions{
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Tags: tags,
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Keyword: keyword,
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Limit: 30,
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Offset: (page - 1) * 30,
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OrderMethod: database.ByLastAdded,
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}
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// Calculate max page
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nBookmarks, err := h.DB.GetBookmarksCount(searchOptions)
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checkError(err)
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maxPage := int(math.Ceil(float64(nBookmarks) / 30))
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// Fetch all matching bookmarks
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bookmarks, err := h.DB.GetBookmarks(searchOptions)
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checkError(err)
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// Get image URL for each bookmark
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for i := range bookmarks {
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strID := strconv.Itoa(bookmarks[i].ID)
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imgPath := fp.Join(h.DataDir, "thumb", strID)
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imgURL := path.Join("/", "thumb", strID)
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if fileExists(imgPath) {
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bookmarks[i].ImageURL = imgURL
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}
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}
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// Return JSON response
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resp := map[string]interface{}{
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"page": page,
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"maxPage": maxPage,
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"bookmarks": bookmarks,
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}
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w.Header().Set("Content-Type", "application/json")
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err = json.NewEncoder(w).Encode(&resp)
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checkError(err)
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}
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// apiGetTags is handler for GET /api/tags
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func (h *handler) apiGetTags(w http.ResponseWriter, r *http.Request, ps httprouter.Params) {
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// Make sure session still valid
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err := h.validateSession(r)
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checkError(err)
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// Fetch all tags
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tags, err := h.DB.GetTags()
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checkError(err)
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w.Header().Set("Content-Type", "application/json")
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err = json.NewEncoder(w).Encode(&tags)
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checkError(err)
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}
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// apiInsertBookmark is handler for POST /api/bookmark
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func (h *handler) apiInsertBookmark(w http.ResponseWriter, r *http.Request, ps httprouter.Params) {
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// Make sure session still valid
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err := h.validateSession(r)
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checkError(err)
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// Decode request
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book := model.Bookmark{}
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err = json.NewDecoder(r.Body).Decode(&book)
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checkError(err)
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// Clean up URL by removing its fragment and UTM parameters
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tmp, err := nurl.Parse(book.URL)
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if err != nil || tmp.Scheme == "" || tmp.Hostname() == "" {
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panic(fmt.Errorf("URL is not valid"))
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}
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tmp.Fragment = ""
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clearUTMParams(tmp)
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book.URL = tmp.String()
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// Create bookmark ID
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book.ID, err = h.DB.CreateNewID("bookmark")
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if err != nil {
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panic(fmt.Errorf("failed to create ID: %v", err))
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}
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// Fetch data from internet
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var imageURLs []string
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func() {
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resp, err := httpClient.Get(book.URL)
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if err != nil {
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return
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}
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defer resp.Body.Close()
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article, err := readability.FromReader(resp.Body, book.URL)
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if err != nil {
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return
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}
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book.Author = article.Byline
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book.Content = article.TextContent
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book.HTML = article.Content
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// If title and excerpt doesnt have submitted value, use from article
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if book.Title == "" {
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book.Title = article.Title
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}
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if book.Excerpt == "" {
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book.Excerpt = article.Excerpt
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}
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// Get image URL
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if article.Image != "" {
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imageURLs = append(imageURLs, article.Image)
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}
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if article.Favicon != "" {
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imageURLs = append(imageURLs, article.Favicon)
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}
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}()
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// Make sure title is not empty
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if book.Title == "" {
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book.Title = book.URL
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}
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// Save bookmark to database
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results, err := h.DB.SaveBookmarks(book)
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if err != nil || len(results) == 0 {
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panic(fmt.Errorf("failed to save bookmark: %v", err))
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}
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book = results[0]
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// Save article image to local disk
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imgPath := fp.Join(h.DataDir, "thumb", fmt.Sprintf("%d", book.ID))
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for _, imageURL := range imageURLs {
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err = downloadBookImage(imageURL, imgPath, time.Minute)
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if err == nil {
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strID := strconv.Itoa(book.ID)
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book.ImageURL = path.Join("/", "thumb", strID)
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break
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}
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}
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// Return the new bookmark
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w.Header().Set("Content-Type", "application/json")
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err = json.NewEncoder(w).Encode(&book)
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checkError(err)
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}
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// apiDeleteBookmarks is handler for DELETE /api/bookmark
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func (h *handler) apiDeleteBookmark(w http.ResponseWriter, r *http.Request, ps httprouter.Params) {
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// Make sure session still valid
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err := h.validateSession(r)
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checkError(err)
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// Decode request
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ids := []int{}
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err = json.NewDecoder(r.Body).Decode(&ids)
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checkError(err)
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// Delete bookmarks
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err = h.DB.DeleteBookmarks(ids...)
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checkError(err)
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// Delete thumbnail image from local disk
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for _, id := range ids {
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strID := strconv.Itoa(id)
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imgPath := fp.Join(h.DataDir, "thumb", strID)
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os.Remove(imgPath)
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}
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fmt.Fprint(w, 1)
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}
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// apiUpdateBookmark is handler for PUT /api/bookmarks
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func (h *handler) apiUpdateBookmark(w http.ResponseWriter, r *http.Request, ps httprouter.Params) {
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// Make sure session still valid
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err := h.validateSession(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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// Validate input
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if request.Title == "" {
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panic(fmt.Errorf("Title must not empty"))
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}
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// Get existing bookmark from database
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filter := database.GetBookmarksOptions{
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IDs: []int{request.ID},
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WithContent: true,
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}
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bookmarks, err := h.DB.GetBookmarks(filter)
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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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// Set new bookmark data
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book := bookmarks[0]
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book.Title = request.Title
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book.Excerpt = request.Excerpt
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// Set new tags
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for i := range book.Tags {
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book.Tags[i].Deleted = true
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}
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for _, newTag := range request.Tags {
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for i, oldTag := range book.Tags {
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if newTag.Name == oldTag.Name {
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newTag.ID = oldTag.ID
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book.Tags[i].Deleted = false
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break
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}
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}
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if newTag.ID == 0 {
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book.Tags = append(book.Tags, newTag)
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}
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}
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// Update database
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res, err := h.DB.SaveBookmarks(book)
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checkError(err)
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// Add thumbnail image to the saved bookmarks again
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newBook := res[0]
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newBook.ImageURL = request.ImageURL
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// Return new saved result
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w.Header().Set("Content-Type", "application/json")
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err = json.NewEncoder(w).Encode(&newBook)
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checkError(err)
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}
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