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package util
import (
"bytes"
"fmt"
"io"
"io/ioutil"
"net/http"
"net/url"
"strings"
"encoding/json"
"github.com/chrislusf/seaweedfs/go/security"
"github.com/syndtr/goleveldb/leveldb/errors"
)
var (
client *http.Client
Transport *http.Transport
)
func init() {
Transport = &http.Transport{
MaxIdleConnsPerHost: 1024,
}
client = &http.Client{Transport: Transport}
}
func PostBytes(url string, body []byte) ([]byte, error) {
r, err := client.Post(url, "application/octet-stream", bytes.NewReader(body))
if err != nil {
return nil, fmt.Errorf("Post to %s: %v", url, err)
}
defer r.Body.Close()
b, err := ioutil.ReadAll(r.Body)
if err != nil {
return nil, fmt.Errorf("Read response body: %v", err)
}
return b, nil
}
func Post(url string, values url.Values) ([]byte, error) {
r, err := client.PostForm(url, values)
if err != nil {
return nil, err
}
defer r.Body.Close()
b, err := ioutil.ReadAll(r.Body)
if err != nil {
return nil, err
}
return b, nil
}
func Get(url string) ([]byte, error) {
r, err := client.Get(url)
if err != nil {
return nil, err
}
defer r.Body.Close()
b, err := ioutil.ReadAll(r.Body)
if r.StatusCode != 200 {
return nil, fmt.Errorf("%s: %s", url, r.Status)
}
if err != nil {
return nil, err
}
return b, nil
}
func Delete(url string, jwt security.EncodedJwt) error {
req, err := http.NewRequest("DELETE", url, nil)
if jwt != "" {
req.Header.Set("Authorization", "BEARER "+string(jwt))
}
if err != nil {
return err
}
resp, e := client.Do(req)
if e != nil {
return e
}
defer resp.Body.Close()
body, err := ioutil.ReadAll(resp.Body)
if err != nil {
return err
}
switch resp.StatusCode {
case http.StatusNotFound, http.StatusAccepted, http.StatusOK:
return nil
}
m := make(map[string]interface{})
if e := json.Unmarshal(body, m); e == nil {
if s, ok := m["error"].(string); ok {
return errors.New(s)
}
}
return errors.New(string(body))
}
func GetBufferStream(url string, values url.Values, allocatedBytes []byte, eachBuffer func([]byte)) error {
r, err := client.PostForm(url, values)
if err != nil {
return err
}
defer r.Body.Close()
if r.StatusCode != 200 {
return fmt.Errorf("%s: %s", url, r.Status)
}
bufferSize := len(allocatedBytes)
for {
n, err := r.Body.Read(allocatedBytes)
if n == bufferSize {
eachBuffer(allocatedBytes)
}
if err != nil {
if err == io.EOF {
return nil
}
return err
}
}
return nil
}
func GetUrlStream(url string, values url.Values, readFn func(io.Reader) error) error {
r, err := client.PostForm(url, values)
if err != nil {
return err
}
defer r.Body.Close()
if r.StatusCode != 200 {
return fmt.Errorf("%s: %s", url, r.Status)
}
return readFn(r.Body)
}
func DownloadUrl(fileUrl string) (filename string, rc io.ReadCloser, e error) {
response, err := client.Get(fileUrl)
if err != nil {
return "", nil, err
}
contentDisposition := response.Header["Content-Disposition"]
if len(contentDisposition) > 0 {
if strings.HasPrefix(contentDisposition[0], "filename=") {
filename = contentDisposition[0][len("filename="):]
filename = strings.Trim(filename, "\"")
}
}
rc = response.Body
return
}
func Do(req *http.Request) (resp *http.Response, err error) {
return client.Do(req)
}
func NormalizeUrl(url string) string {
if strings.HasPrefix(url, "http://") || strings.HasPrefix(url, "https://") {
return url
}
return "http://" + url
}
|
