func handleCreateTopic(ctx context.Context, w http.ResponseWriter, r *http.Request) {
account, ok := auth.AuthRequired(pg.DB(ctx), w, r)
if !ok {
return
}
input := struct {
Title string
Tags []string
Content string
}{
Title: r.FormValue("title"),
Tags: strings.Fields(r.FormValue("tags")),
Content: r.FormValue("content"),
}
var errs []string
if r.Method == "POST" {
if input.Title == "" {
errs = append(errs, `"title" is required`)
}
if input.Content == "" {
errs = append(errs, `"content" is required`)
}
}
if r.Method == "GET" || len(errs) != 0 {
render(w, "topic_create.tmpl", input)
return
}
db := pg.DB(ctx)
tx, err := db.Beginx()
if err != nil {
log.Error("cannot start transaction", "error", err.Error())
respond500(w, r)
return
}
defer tx.Rollback()
topic := Topic{
AuthorID: int64(account.AccountID),
Title: input.Title,
Tags: input.Tags,
}
t, _, err := CreateTopicWithComment(tx, topic, input.Content)
if err != nil {
log.Error("cannot create topic with comment", "error", err.Error())
respond500(w, r)
return
}
if err := tx.Commit(); err != nil {
log.Error("cannot commit transaction", "error", err.Error())
respond500(w, r)
return
}
http.Redirect(w, r, fmt.Sprintf("/t/%d", t.TopicID), http.StatusSeeOther)
}
func HandleCreateNote(ctx context.Context, w http.ResponseWriter, r *http.Request) {
var note Note
if err := json.NewDecoder(r.Body).Decode(¬e); err != nil {
web.JSONErr(w, err.Error(), http.StatusBadRequest)
return
}
acc, ok := auth.AuthRequired(pg.DB(ctx), w, r)
if !ok {
return
}
if errs := validateNote(¬e); len(errs) > 0 {
web.JSONErrs(w, errs, http.StatusBadRequest)
return
}
note.OwnerID = acc.AccountID
n, err := CreateNote(pg.DB(ctx), note)
if err != nil {
log.Printf("cannot create note: %s", err)
web.StdJSONErr(w, http.StatusInternalServerError)
return
}
web.JSONResp(w, n, http.StatusCreated)
}
func HandleUpdateNote(ctx context.Context, w http.ResponseWriter, r *http.Request) {
var input Note
if err := json.NewDecoder(r.Body).Decode(&input); err != nil {
web.JSONErr(w, err.Error(), http.StatusBadRequest)
return
}
if errs := validateNote(&input); len(errs) > 0 {
web.JSONErrs(w, errs, http.StatusBadRequest)
return
}
tx, err := pg.DB(ctx).Beginx()
if err != nil {
log.Printf("cannot start transaction: %s", err)
web.StdJSONErr(w, http.StatusInternalServerError)
return
}
defer tx.Rollback()
acc, ok := auth.AuthRequired(tx, w, r)
if !ok {
return
}
noteID := stoint(web.Args(ctx).ByIndex(0))
if ok, err := IsNoteOwner(tx, noteID, acc.AccountID); err != nil {
log.Printf("cannot check %d note owner: %s", noteID, err)
web.StdJSONErr(w, http.StatusInternalServerError)
return
} else if !ok {
web.JSONErr(w, "you are not owner of this note", http.StatusUnauthorized)
return
}
note, err := UpdateNote(tx, input)
if err != nil {
log.Printf("cannot update %d note: %s", noteID, err)
web.StdJSONErr(w, http.StatusInternalServerError)
return
}
if err := tx.Commit(); err != nil {
log.Printf("cannot commit transaction: %s", err)
web.StdJSONErr(w, http.StatusInternalServerError)
return
}
web.JSONResp(w, note, http.StatusOK)
}
func HandleDeleteNote(ctx context.Context, w http.ResponseWriter, r *http.Request) {
tx, err := pg.DB(ctx).Beginx()
if err != nil {
log.Printf("cannot start transaction: %s", err)
web.StdJSONErr(w, http.StatusInternalServerError)
return
}
defer tx.Rollback()
acc, ok := auth.AuthRequired(tx, w, r)
if !ok {
return
}
noteID := stoint(web.Args(ctx).ByIndex(0))
if ok, err := IsNoteOwner(tx, noteID, acc.AccountID); err != nil {
if err == pg.ErrNotFound {
web.StdJSONErr(w, http.StatusNotFound)
} else {
log.Printf("cannot check %d note owner: %s", noteID, err)
web.StdJSONErr(w, http.StatusInternalServerError)
}
return
} else if !ok {
web.JSONErr(w, "you are not owner of this note", http.StatusUnauthorized)
return
}
if err := DeleteNote(tx, noteID); err != nil {
log.Printf("cannot delete %d note: %s", noteID, err)
web.StdJSONErr(w, http.StatusInternalServerError)
return
}
if err := tx.Commit(); err != nil {
log.Printf("cannot commit transaction: %s", err)
web.StdJSONErr(w, http.StatusInternalServerError)
return
}
w.WriteHeader(http.StatusGone)
}
func HandleListNotes(ctx context.Context, w http.ResponseWriter, r *http.Request) {
db := pg.DB(ctx)
acc, ok := auth.AuthRequired(db, w, r)
if !ok {
return
}
var offset int
if raw := r.URL.Query().Get("offset"); raw != "" {
if n, err := strconv.Atoi(raw); err != nil {
web.JSONErr(w, "invalid 'offset' value", http.StatusBadRequest)
return
} else {
offset = n
}
}
notes, err := NotesByOwner(db, acc.AccountID, 300, offset)
if err != nil {
log.Printf("cannot fetch notes for %d: %s", acc.AccountID, err)
web.StdJSONErr(w, http.StatusInternalServerError)
return
}
if notes == nil {
notes = make([]*Note, 0) // JSON api should return empty list
}
content := struct {
Notes []*Note
}{
Notes: notes,
}
web.JSONResp(w, content, http.StatusOK)
}