// HandlerIndex returns index web page.
func HandlerIndex(ctx context.Context, w http.ResponseWriter, r *http.Request) ErrHandler {
data := map[string]string{}
c, err := conf.FromContext(ctx)
if err != nil {
return ErrHandler{err, http.StatusInternalServerError}
}
tpl, err := c.CacheTpl("base", "base.html", "index.html")
if err != nil {
return ErrHandler{err, http.StatusInternalServerError}
}
if r.Method == "POST" {
p, err := validateParams(r)
if err != nil {
c.L.Error.Println(err)
data["Error"] = "Invalid data."
err = tpl.ExecuteTemplate(w, "base", data)
if err != nil {
return ErrHandler{err, http.StatusInternalServerError}
}
return ErrHandler{nil, http.StatusOK}
}
params := []*trim.ReqParams{p}
cus, err := trim.Shorten(ctx, params)
if err != nil {
return ErrHandler{err, http.StatusInternalServerError}
}
data["Result"] = c.Address(cus[0].String())
}
err = tpl.ExecuteTemplate(w, "base", data)
if err != nil {
return ErrHandler{err, http.StatusInternalServerError}
}
return ErrHandler{nil, http.StatusOK}
}
// HandlerNoWebIndex works like version but return only short link text.
func HandlerNoWebIndex(ctx context.Context, w http.ResponseWriter, r *http.Request) ErrHandler {
c, err := conf.FromContext(ctx)
if err != nil {
fmt.Fprintf(w, "error: internal error\n")
return ErrHandler{nil, http.StatusOK}
}
u := r.FormValue("u")
if u == "" {
fmt.Fprintf(w, "error: no data\n")
return ErrHandler{nil, http.StatusOK}
}
param := &trim.ReqParams{
Original: u,
Tag: "",
NotDirect: false,
TTL: nil,
}
err = param.Valid()
if err != nil {
fmt.Fprintf(w, "error: invalid url\n")
return ErrHandler{nil, http.StatusOK}
}
params := []*trim.ReqParams{param}
cus, err := trim.Shorten(ctx, params)
if err != nil {
fmt.Fprintf(w, "error: internal error\n")
return ErrHandler{nil, http.StatusOK}
}
fmt.Fprintf(w, "%s\n", c.Address(cus[0].String()))
return ErrHandler{nil, http.StatusOK}
}
// HandlerAdd creates new short URL.
func HandlerAdd(ctx context.Context, w http.ResponseWriter, r *http.Request) core.ErrHandler {
c, err := conf.FromContext(ctx)
if err != nil {
return core.ErrHandler{Err: err, Status: http.StatusInternalServerError}
}
defer r.Body.Close()
params, err := validateAddParams(r)
if err != nil {
return core.ErrHandler{Err: err, Status: http.StatusBadRequest}
}
cus, err := trim.Shorten(ctx, params)
if err != nil {
return core.ErrHandler{Err: err, Status: http.StatusInternalServerError}
}
items := make([]addResponseItem, len(cus))
for i, cu := range cus {
id := cu.String()
items[i] = addResponseItem{
ID: id,
Short: c.Address(id),
Original: cu.Original,
}
}
result := &addResponse{
Err: 0,
Msg: "ok",
Result: items,
}
b, err := json.Marshal(result)
if err != nil {
return core.ErrHandler{Err: err, Status: http.StatusInternalServerError}
}
w.Header().Set("Content-Type", "application/json")
fmt.Fprintf(w, "%s", b)
return core.ErrHandler{Err: nil, Status: http.StatusOK}
}