270 lines
7.3 KiB
Go
270 lines
7.3 KiB
Go
package service
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import (
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"context"
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"fmt"
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"mime/multipart"
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"net/http"
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"path"
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"github.com/gorilla/mux"
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)
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var (
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ctx = context.Background()
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cookieAge = "31536000"
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)
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func NewHandler(s Service, staticDir string) http.Handler {
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r := mux.NewRouter()
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r.PathPrefix("/static").Handler(http.StripPrefix("/static",
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http.FileServer(http.Dir(path.Join(".", staticDir)))))
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r.HandleFunc("/", func(w http.ResponseWriter, req *http.Request) {
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location := "/signin"
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sessionID, _ := req.Cookie("session_id")
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if sessionID != nil && len(sessionID.Value) > 0 {
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location = "/timeline"
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}
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w.Header().Add("Location", location)
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w.WriteHeader(http.StatusFound)
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}).Methods(http.MethodGet)
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r.HandleFunc("/signin", func(w http.ResponseWriter, req *http.Request) {
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err := s.ServeSigninPage(ctx, w)
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if err != nil {
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s.ServeErrorPage(ctx, w, err)
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return
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}
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}).Methods(http.MethodGet)
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r.HandleFunc("/signin", func(w http.ResponseWriter, req *http.Request) {
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instance := req.FormValue("instance")
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url, sessionId, err := s.GetAuthUrl(ctx, instance)
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if err != nil {
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s.ServeErrorPage(ctx, w, err)
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return
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}
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w.Header().Add("Set-Cookie", fmt.Sprintf("session_id=%s;max-age=%s", sessionId, cookieAge))
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w.Header().Add("Location", url)
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w.WriteHeader(http.StatusFound)
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}).Methods(http.MethodPost)
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r.HandleFunc("/oauth_callback", func(w http.ResponseWriter, req *http.Request) {
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ctx := getContextWithSession(context.Background(), req)
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token := req.URL.Query().Get("code")
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_, err := s.GetUserToken(ctx, "", nil, token)
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if err != nil {
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s.ServeErrorPage(ctx, w, err)
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return
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}
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w.Header().Add("Location", "/timeline")
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w.WriteHeader(http.StatusFound)
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}).Methods(http.MethodGet)
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r.HandleFunc("/timeline", func(w http.ResponseWriter, req *http.Request) {
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ctx := getContextWithSession(context.Background(), req)
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maxID := req.URL.Query().Get("max_id")
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sinceID := req.URL.Query().Get("since_id")
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minID := req.URL.Query().Get("min_id")
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err := s.ServeTimelinePage(ctx, w, nil, maxID, sinceID, minID)
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if err != nil {
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s.ServeErrorPage(ctx, w, err)
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return
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}
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}).Methods(http.MethodGet)
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r.HandleFunc("/thread/{id}", func(w http.ResponseWriter, req *http.Request) {
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ctx := getContextWithSession(context.Background(), req)
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id, _ := mux.Vars(req)["id"]
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reply := req.URL.Query().Get("reply")
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err := s.ServeThreadPage(ctx, w, nil, id, len(reply) > 1)
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if err != nil {
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s.ServeErrorPage(ctx, w, err)
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return
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}
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}).Methods(http.MethodGet)
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r.HandleFunc("/like/{id}", func(w http.ResponseWriter, req *http.Request) {
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ctx := getContextWithSession(context.Background(), req)
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id, _ := mux.Vars(req)["id"]
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err := s.Like(ctx, w, nil, id)
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if err != nil {
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s.ServeErrorPage(ctx, w, err)
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return
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}
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w.Header().Add("Location", req.Header.Get("Referer")+"#status-"+id)
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w.WriteHeader(http.StatusFound)
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}).Methods(http.MethodGet)
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r.HandleFunc("/unlike/{id}", func(w http.ResponseWriter, req *http.Request) {
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ctx := getContextWithSession(context.Background(), req)
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id, _ := mux.Vars(req)["id"]
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err := s.UnLike(ctx, w, nil, id)
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if err != nil {
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s.ServeErrorPage(ctx, w, err)
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return
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}
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w.Header().Add("Location", req.Header.Get("Referer")+"#status-"+id)
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w.WriteHeader(http.StatusFound)
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}).Methods(http.MethodGet)
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r.HandleFunc("/retweet/{id}", func(w http.ResponseWriter, req *http.Request) {
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ctx := getContextWithSession(context.Background(), req)
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id, _ := mux.Vars(req)["id"]
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err := s.Retweet(ctx, w, nil, id)
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if err != nil {
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s.ServeErrorPage(ctx, w, err)
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return
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}
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w.Header().Add("Location", req.Header.Get("Referer")+"#status-"+id)
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w.WriteHeader(http.StatusFound)
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}).Methods(http.MethodGet)
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r.HandleFunc("/unretweet/{id}", func(w http.ResponseWriter, req *http.Request) {
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ctx := getContextWithSession(context.Background(), req)
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id, _ := mux.Vars(req)["id"]
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err := s.UnRetweet(ctx, w, nil, id)
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if err != nil {
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s.ServeErrorPage(ctx, w, err)
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return
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}
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w.Header().Add("Location", req.Header.Get("Referer")+"#status-"+id)
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w.WriteHeader(http.StatusFound)
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}).Methods(http.MethodGet)
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r.HandleFunc("/post", func(w http.ResponseWriter, req *http.Request) {
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ctx := getContextWithSession(context.Background(), req)
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err := req.ParseMultipartForm(4 << 20)
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if err != nil {
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s.ServeErrorPage(ctx, w, err)
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return
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}
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content := getMultipartFormValue(req.MultipartForm, "content")
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replyToID := getMultipartFormValue(req.MultipartForm, "reply_to_id")
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visibility := getMultipartFormValue(req.MultipartForm, "visibility")
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files := req.MultipartForm.File["attachments"]
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id, err := s.PostTweet(ctx, w, nil, content, replyToID, visibility, files)
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if err != nil {
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s.ServeErrorPage(ctx, w, err)
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return
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}
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location := "/timeline" + "#status-" + id
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if len(replyToID) > 0 {
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location = "/thread/" + replyToID + "#status-" + id
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}
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w.Header().Add("Location", location)
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w.WriteHeader(http.StatusFound)
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}).Methods(http.MethodPost)
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r.HandleFunc("/notifications", func(w http.ResponseWriter, req *http.Request) {
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ctx := getContextWithSession(context.Background(), req)
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maxID := req.URL.Query().Get("max_id")
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minID := req.URL.Query().Get("min_id")
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err := s.ServeNotificationPage(ctx, w, nil, maxID, minID)
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if err != nil {
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s.ServeErrorPage(ctx, w, err)
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return
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}
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}).Methods(http.MethodGet)
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r.HandleFunc("/user/{id}", func(w http.ResponseWriter, req *http.Request) {
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ctx := getContextWithSession(context.Background(), req)
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id, _ := mux.Vars(req)["id"]
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maxID := req.URL.Query().Get("max_id")
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minID := req.URL.Query().Get("min_id")
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err := s.ServeUserPage(ctx, w, nil, id, maxID, minID)
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if err != nil {
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s.ServeErrorPage(ctx, w, err)
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return
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}
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}).Methods(http.MethodGet)
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r.HandleFunc("/follow/{id}", func(w http.ResponseWriter, req *http.Request) {
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ctx := getContextWithSession(context.Background(), req)
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id, _ := mux.Vars(req)["id"]
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err := s.Follow(ctx, w, nil, id)
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if err != nil {
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s.ServeErrorPage(ctx, w, err)
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return
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}
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w.Header().Add("Location", req.Header.Get("Referer"))
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w.WriteHeader(http.StatusFound)
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}).Methods(http.MethodPost)
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r.HandleFunc("/unfollow/{id}", func(w http.ResponseWriter, req *http.Request) {
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ctx := getContextWithSession(context.Background(), req)
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id, _ := mux.Vars(req)["id"]
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err := s.UnFollow(ctx, w, nil, id)
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if err != nil {
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s.ServeErrorPage(ctx, w, err)
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return
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}
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w.Header().Add("Location", req.Header.Get("Referer"))
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w.WriteHeader(http.StatusFound)
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}).Methods(http.MethodPost)
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r.HandleFunc("/about", func(w http.ResponseWriter, req *http.Request) {
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ctx := getContextWithSession(context.Background(), req)
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err := s.ServeAboutPage(ctx, w, nil)
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if err != nil {
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s.ServeErrorPage(ctx, w, err)
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return
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}
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}).Methods(http.MethodGet)
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r.HandleFunc("/signout", func(w http.ResponseWriter, req *http.Request) {
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// TODO remove session from database
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w.Header().Add("Set-Cookie", fmt.Sprintf("session_id=;max-age=0"))
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w.Header().Add("Location", "/")
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w.WriteHeader(http.StatusFound)
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}).Methods(http.MethodGet)
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return r
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}
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func getContextWithSession(ctx context.Context, req *http.Request) context.Context {
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sessionID, err := req.Cookie("session_id")
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if err != nil {
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return ctx
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}
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return context.WithValue(ctx, "session_id", sessionID.Value)
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}
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func getMultipartFormValue(mf *multipart.Form, key string) (val string) {
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vals, ok := mf.Value[key]
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if !ok {
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return ""
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}
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if len(vals) < 1 {
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return ""
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}
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return vals[0]
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}
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