150 lines
3.1 KiB
Go
150 lines
3.1 KiB
Go
// Version of the bot API: 3.5 (November 17, 2017)
|
|
package telegram
|
|
|
|
import (
|
|
"bytes"
|
|
"errors"
|
|
"fmt"
|
|
"io"
|
|
"mime/multipart"
|
|
"net/url"
|
|
"os"
|
|
|
|
log "github.com/kirillDanshin/dlog"
|
|
json "github.com/pquerna/ffjson/ffjson"
|
|
http "github.com/valyala/fasthttp"
|
|
)
|
|
|
|
const (
|
|
APIEndpoint = "https://api.telegram.org/bot%s/%s"
|
|
FileEndpoind = "https://api.telegram.org/file/bot%s/%s"
|
|
)
|
|
|
|
var ErrBadFileType = errors.New("bad file type")
|
|
|
|
func (bot *Bot) request(
|
|
dst []byte,
|
|
method string,
|
|
args *http.Args,
|
|
) (*Response, error) {
|
|
requestURI := &url.URL{
|
|
Scheme: "https",
|
|
Host: "api.telegram.org",
|
|
Path: fmt.Sprint("/bot", bot.AccessToken, "/", method),
|
|
}
|
|
|
|
if args != nil {
|
|
requestURI.RawQuery = args.String()
|
|
}
|
|
|
|
req := http.AcquireRequest()
|
|
defer http.ReleaseRequest(req)
|
|
req.Header.SetMethod("POST")
|
|
req.Header.SetContentType("application/json; charset=utf-8")
|
|
req.Header.SetRequestURI(requestURI.String())
|
|
req.Header.SetUserAgent("go-telegram/3.5")
|
|
req.SetBody(dst)
|
|
|
|
resp := http.AcquireResponse()
|
|
defer http.ReleaseResponse(resp)
|
|
if err := http.Do(req, resp); err != nil {
|
|
return nil, err
|
|
}
|
|
|
|
log.Ln("Response:")
|
|
log.D(*resp)
|
|
|
|
var data Response
|
|
if err := json.Unmarshal(resp.Body(), &data); err != nil {
|
|
return nil, err
|
|
}
|
|
|
|
if !data.Ok {
|
|
return nil, errors.New(data.Description)
|
|
}
|
|
|
|
return &data, nil
|
|
}
|
|
|
|
func (bot *Bot) upload(
|
|
file InputFile,
|
|
fieldName, fileName, method string,
|
|
args *http.Args,
|
|
) (*Response, error) {
|
|
var buffer bytes.Buffer
|
|
multi := multipart.NewWriter(&buffer)
|
|
defer multi.Close()
|
|
|
|
switch source := file.(type) {
|
|
case string:
|
|
f, err := os.Open(source)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
defer f.Close()
|
|
|
|
formFile, err := multi.CreateFormFile(fieldName, f.Name())
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
if _, err = io.Copy(formFile, f); err != nil {
|
|
return nil, err
|
|
}
|
|
case []byte:
|
|
formFile, err := multi.CreateFormFile(fieldName, fileName)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
if _, err = io.Copy(formFile, bytes.NewReader(source)); err != nil {
|
|
return nil, err
|
|
}
|
|
case *url.URL:
|
|
if err := multi.WriteField(fieldName, source.String()); err != nil {
|
|
return nil, err
|
|
}
|
|
case io.Reader:
|
|
multi.CreateFormFile(fieldName, fileName)
|
|
default:
|
|
return nil, ErrBadFileType
|
|
}
|
|
|
|
requestURI := &url.URL{
|
|
Scheme: "https",
|
|
Host: "api.telegram.org",
|
|
Path: fmt.Sprint("/file/bot", bot.AccessToken, "/", method),
|
|
}
|
|
|
|
if args != nil {
|
|
requestURI.RawQuery = args.String()
|
|
}
|
|
|
|
req := http.AcquireRequest()
|
|
defer http.ReleaseRequest(req)
|
|
req.Header.SetMethod("POST")
|
|
req.Header.SetContentType("multipart/form-data; charset=utf-8")
|
|
req.Header.SetMultipartFormBoundary(multi.Boundary())
|
|
req.Header.SetRequestURI(requestURI.String())
|
|
req.Header.SetUserAgent("go-telegram/3.5")
|
|
req.SetBody(buffer.Bytes())
|
|
|
|
resp := http.AcquireResponse()
|
|
defer http.ReleaseResponse(resp)
|
|
if err := http.Do(req, resp); err != nil {
|
|
return nil, err
|
|
}
|
|
|
|
log.Ln("Response:")
|
|
log.D(*resp)
|
|
|
|
var data Response
|
|
if err := json.Unmarshal(resp.Body(), &data); err != nil {
|
|
return nil, err
|
|
}
|
|
|
|
if !data.Ok {
|
|
return nil, errors.New(data.Description)
|
|
}
|
|
|
|
return &data, nil
|
|
}
|