/
http.go
422 lines (367 loc) · 13.6 KB
/
http.go
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package obs
import (
"bytes"
"errors"
"io"
"math/rand"
"net"
"net/http"
"net/url"
"os"
"strings"
"time"
)
func prepareHeaders(headers map[string][]string, meta bool) map[string][]string {
_headers := make(map[string][]string, len(headers))
if headers != nil {
for key, value := range headers {
key = strings.TrimSpace(key)
if key == "" {
continue
}
_key := strings.ToLower(key)
if _, ok := allowed_request_http_header_metadata_names[_key]; !ok && !strings.HasPrefix(key, HEADER_PREFIX) {
if !meta {
continue
}
_key = HEADER_PREFIX_META + _key
} else {
_key = key
}
_headers[_key] = value
}
}
return _headers
}
func (obsClient ObsClient) doActionWithoutBucket(action, method string, input ISerializable, output IBaseModel) error {
return obsClient.doAction(action, method, "", "", input, output, true, true)
}
func (obsClient ObsClient) doActionWithBucketV2(action, method, bucketName string, input ISerializable, output IBaseModel) error {
if strings.TrimSpace(bucketName) == "" {
return errors.New("Bucket is empty")
}
return obsClient.doAction(action, method, bucketName, "", input, output, false, true)
}
func (obsClient ObsClient) doActionWithBucket(action, method, bucketName string, input ISerializable, output IBaseModel) error {
if strings.TrimSpace(bucketName) == "" {
return errors.New("Bucket is empty")
}
return obsClient.doAction(action, method, bucketName, "", input, output, true, true)
}
func (obsClient ObsClient) doActionWithBucketAndKey(action, method, bucketName, objectKey string, input ISerializable, output IBaseModel) error {
return obsClient._doActionWithBucketAndKey(action, method, bucketName, objectKey, input, output, true)
}
func (obsClient ObsClient) doActionWithBucketAndKeyUnRepeatable(action, method, bucketName, objectKey string, input ISerializable, output IBaseModel) error {
return obsClient._doActionWithBucketAndKey(action, method, bucketName, objectKey, input, output, false)
}
func (obsClient ObsClient) _doActionWithBucketAndKey(action, method, bucketName, objectKey string, input ISerializable, output IBaseModel, repeatable bool) error {
if strings.TrimSpace(bucketName) == "" {
return errors.New("Key is empty")
}
if strings.TrimSpace(objectKey) == "" {
return errors.New("Key is empty")
}
return obsClient.doAction(action, method, bucketName, objectKey, input, output, true, repeatable)
}
func (obsClient ObsClient) doAction(action, method, bucketName, objectKey string, input ISerializable, output IBaseModel, xmlResult bool, repeatable bool) error {
var resp *http.Response
var respError error
doLog(LEVEL_INFO, "Enter method %s...", action)
start := GetCurrentTimestamp()
params, headers, data := input.trans()
if params == nil {
params = make(map[string]string)
}
if headers == nil {
headers = make(map[string][]string)
}
switch method {
case HTTP_GET:
resp, respError = obsClient.doHttpGet(bucketName, objectKey, params, headers, data, repeatable)
case HTTP_POST:
resp, respError = obsClient.doHttpPost(bucketName, objectKey, params, headers, data, repeatable)
case HTTP_PUT:
resp, respError = obsClient.doHttpPut(bucketName, objectKey, params, headers, data, repeatable)
case HTTP_DELETE:
resp, respError = obsClient.doHttpDelete(bucketName, objectKey, params, headers, data, repeatable)
case HTTP_HEAD:
resp, respError = obsClient.doHttpHead(bucketName, objectKey, params, headers, data, repeatable)
case HTTP_OPTIONS:
resp, respError = obsClient.doHttpOptions(bucketName, objectKey, params, headers, data, repeatable)
default:
respError = errors.New("Unexpect http method error")
}
if respError == nil && output != nil {
respError = ParseResponseToBaseModel(resp, output, xmlResult)
if respError != nil {
doLog(LEVEL_WARN, "Parse response to BaseModel with error: %v", respError)
}
} else {
doLog(LEVEL_WARN, "Do http request with error: %v", respError)
}
if isDebugLogEnabled() {
doLog(LEVEL_DEBUG, "End method %s, obsclient cost %d ms", action, (GetCurrentTimestamp() - start))
}
return respError
}
func (obsClient ObsClient) doHttpGet(bucketName, objectKey string, params map[string]string,
headers map[string][]string, data interface{}, repeatable bool) (*http.Response, error) {
return obsClient.doHttp(HTTP_GET, bucketName, objectKey, params, prepareHeaders(headers, false), data, repeatable)
}
func (obsClient ObsClient) doHttpHead(bucketName, objectKey string, params map[string]string,
headers map[string][]string, data interface{}, repeatable bool) (*http.Response, error) {
return obsClient.doHttp(HTTP_HEAD, bucketName, objectKey, params, prepareHeaders(headers, false), data, repeatable)
}
func (obsClient ObsClient) doHttpOptions(bucketName, objectKey string, params map[string]string,
headers map[string][]string, data interface{}, repeatable bool) (*http.Response, error) {
return obsClient.doHttp(HTTP_OPTIONS, bucketName, objectKey, params, prepareHeaders(headers, false), data, repeatable)
}
func (obsClient ObsClient) doHttpDelete(bucketName, objectKey string, params map[string]string,
headers map[string][]string, data interface{}, repeatable bool) (*http.Response, error) {
return obsClient.doHttp(HTTP_DELETE, bucketName, objectKey, params, prepareHeaders(headers, false), data, repeatable)
}
func (obsClient ObsClient) doHttpPut(bucketName, objectKey string, params map[string]string,
headers map[string][]string, data interface{}, repeatable bool) (*http.Response, error) {
return obsClient.doHttp(HTTP_PUT, bucketName, objectKey, params, prepareHeaders(headers, true), data, repeatable)
}
func (obsClient ObsClient) doHttpPost(bucketName, objectKey string, params map[string]string,
headers map[string][]string, data interface{}, repeatable bool) (*http.Response, error) {
return obsClient.doHttp(HTTP_POST, bucketName, objectKey, params, prepareHeaders(headers, true), data, repeatable)
}
func (obsClient ObsClient) doHttpWithSignedUrl(action, method string, signedUrl string, actualSignedRequestHeaders http.Header, data io.Reader, output IBaseModel, xmlResult bool) (respError error) {
req, err := http.NewRequest(method, signedUrl, data)
if err != nil {
return err
}
var resp *http.Response
doLog(LEVEL_INFO, "Do %s with signedUrl %s...", action, signedUrl)
req.Header = actualSignedRequestHeaders
if value, ok := req.Header[HEADER_HOST_CAMEL]; ok {
req.Host = value[0]
delete(req.Header, HEADER_HOST_CAMEL)
} else if value, ok := req.Header[HEADER_HOST]; ok {
req.Host = value[0]
delete(req.Header, HEADER_HOST)
}
if value, ok := req.Header[HEADER_CONTENT_LENGTH_CAMEL]; ok {
req.ContentLength = StringToInt64(value[0], -1)
delete(req.Header, HEADER_CONTENT_LENGTH_CAMEL)
} else if value, ok := req.Header[HEADER_CONTENT_LENGTH]; ok {
req.ContentLength = StringToInt64(value[0], -1)
delete(req.Header, HEADER_CONTENT_LENGTH)
}
req.Header[HEADER_USER_AGENT_CAMEL] = []string{USER_AGENT}
start := GetCurrentTimestamp()
resp, err = obsClient.httpClient.Do(req)
if isInfoLogEnabled() {
doLog(LEVEL_INFO, "Do http request cost %d ms", (GetCurrentTimestamp() - start))
}
var msg interface{}
if err != nil {
respError = err
resp = nil
} else {
doLog(LEVEL_DEBUG, "Response headers: %v", resp.Header)
if resp.StatusCode >= 300 {
respError = ParseResponseToObsError(resp)
msg = resp.Status
resp = nil
} else {
if output != nil {
respError = ParseResponseToBaseModel(resp, output, xmlResult)
}
if respError != nil {
doLog(LEVEL_WARN, "Parse response to BaseModel with error: %v", respError)
}
}
}
if msg != nil {
doLog(LEVEL_ERROR, "Failed to send request with reason:%v", msg)
}
if isDebugLogEnabled() {
doLog(LEVEL_DEBUG, "End method %s, obsclient cost %d ms", action, (GetCurrentTimestamp() - start))
}
return
}
func (obsClient ObsClient) doHttp(method, bucketName, objectKey string, params map[string]string,
headers map[string][]string, data interface{}, repeatable bool) (resp *http.Response, respError error) {
bucketName = strings.TrimSpace(bucketName)
objectKey = strings.TrimSpace(objectKey)
method = strings.ToUpper(method)
var redirectUrl string
var requestUrl string
maxRetryCount := obsClient.conf.maxRetryCount
var _data io.Reader
if data != nil {
if dataStr, ok := data.(string); ok {
doLog(LEVEL_DEBUG, "Do http request with string: %s", dataStr)
headers["Content-Length"] = []string{IntToString(len(dataStr))}
_data = strings.NewReader(dataStr)
} else if dataByte, ok := data.([]byte); ok {
doLog(LEVEL_DEBUG, "Do http request with byte array")
headers["Content-Length"] = []string{IntToString(len(dataByte))}
_data = bytes.NewReader(dataByte)
} else if dataReader, ok := data.(io.Reader); ok {
_data = dataReader
} else {
doLog(LEVEL_WARN, "Data is not a valid io.Reader")
return nil, errors.New("Data is not a valid io.Reader")
}
}
for i := 0; i <= maxRetryCount; i++ {
if redirectUrl != "" {
parsedRedirectUrl, err := url.Parse(redirectUrl)
if err != nil {
return nil, err
}
requestUrl, _ = obsClient.doAuth(method, bucketName, objectKey, params, headers, parsedRedirectUrl.Host)
if parsedRequestUrl, _ := url.Parse(requestUrl); parsedRequestUrl.RawQuery != "" && parsedRedirectUrl.RawQuery == "" {
redirectUrl += "?" + parsedRequestUrl.RawQuery
}
requestUrl = redirectUrl
} else {
var err error
requestUrl, err = obsClient.doAuth(method, bucketName, objectKey, params, headers, "")
if err != nil {
return nil, err
}
}
req, err := http.NewRequest(method, requestUrl, _data)
if err != nil {
return nil, err
}
doLog(LEVEL_DEBUG, "Do request with url [%s] and method [%s]", requestUrl, method)
if isDebugLogEnabled() {
auth := headers[HEADER_AUTH_CAMEL]
delete(headers, HEADER_AUTH_CAMEL)
doLog(LEVEL_DEBUG, "Request headers: %v", headers)
headers[HEADER_AUTH_CAMEL] = auth
}
for key, value := range headers {
if key == HEADER_HOST_CAMEL {
req.Host = value[0]
delete(headers, key)
} else if key == HEADER_CONTENT_LENGTH_CAMEL {
req.ContentLength = StringToInt64(value[0], -1)
delete(headers, key)
} else {
req.Header[key] = value
}
}
req.Header[HEADER_USER_AGENT_CAMEL] = []string{USER_AGENT}
start := GetCurrentTimestamp()
resp, err = obsClient.httpClient.Do(req)
if isInfoLogEnabled() {
doLog(LEVEL_INFO, "Do http request cost %d ms", (GetCurrentTimestamp() - start))
}
var msg interface{}
if err != nil {
msg = err
respError = err
resp = nil
} else {
doLog(LEVEL_DEBUG, "Response headers: %v", resp.Header)
if resp.StatusCode < 300 {
break
} else if !repeatable || (resp.StatusCode >= 400 && resp.StatusCode < 500) || resp.StatusCode == 304 {
respError = ParseResponseToObsError(resp)
resp = nil
break
} else if resp.StatusCode >= 300 && resp.StatusCode < 400 {
if location := resp.Header.Get(HEADER_LOCATION_CAMEL); location != "" {
redirectUrl = location
doLog(LEVEL_WARN, "Redirect request to %s", redirectUrl)
msg = resp.Status
maxRetryCount++
} else {
respError = ParseResponseToObsError(resp)
resp = nil
break
}
} else {
msg = resp.Status
}
}
if i != maxRetryCount {
if resp != nil {
resp.Body.Close()
resp = nil
}
if _, ok := headers[HEADER_AUTH_CAMEL]; ok {
delete(headers, HEADER_AUTH_CAMEL)
}
doLog(LEVEL_WARN, "Failed to send request with reason:%v, will try again", msg)
if r, ok := _data.(*strings.Reader); ok {
r.Seek(0, 0)
} else if r, ok := _data.(*bytes.Reader); ok {
r.Seek(0, 0)
} else if r, ok := _data.(*fileReaderWrapper); ok {
fd, err := os.Open(r.filePath)
if err != nil {
return nil, err
}
defer fd.Close()
fileReaderWrapper := &fileReaderWrapper{filePath: r.filePath}
fileReaderWrapper.mark = r.mark
fileReaderWrapper.reader = fd
fileReaderWrapper.totalCount = r.totalCount
_data = fileReaderWrapper
fd.Seek(r.mark, 0)
} else if r, ok := _data.(*readerWrapper); ok {
r.seek(0, 0)
}
time.Sleep(time.Duration(float64(i+2) * rand.Float64() * float64(time.Second)))
} else {
doLog(LEVEL_ERROR, "Failed to send request with reason:%v", msg)
if resp != nil {
respError = ParseResponseToObsError(resp)
resp = nil
}
}
}
return
}
type connDelegate struct {
conn net.Conn
socketTimeout time.Duration
finalTimeout time.Duration
}
func getConnDelegate(conn net.Conn, socketTimeout int, finalTimeout int) *connDelegate {
return &connDelegate{
conn: conn,
socketTimeout: time.Second * time.Duration(socketTimeout),
finalTimeout: time.Second * time.Duration(finalTimeout),
}
}
func (delegate *connDelegate) Read(b []byte) (n int, err error) {
delegate.SetReadDeadline(time.Now().Add(delegate.socketTimeout))
n, err = delegate.conn.Read(b)
delegate.SetReadDeadline(time.Now().Add(delegate.finalTimeout))
return n, err
}
func (delegate *connDelegate) Write(b []byte) (n int, err error) {
delegate.SetWriteDeadline(time.Now().Add(delegate.socketTimeout))
n, err = delegate.conn.Write(b)
finalTimeout := time.Now().Add(delegate.finalTimeout)
delegate.SetWriteDeadline(finalTimeout)
delegate.SetReadDeadline(finalTimeout)
return n, err
}
func (delegate *connDelegate) Close() error {
return delegate.conn.Close()
}
func (delegate *connDelegate) LocalAddr() net.Addr {
return delegate.conn.LocalAddr()
}
func (delegate *connDelegate) RemoteAddr() net.Addr {
return delegate.conn.RemoteAddr()
}
func (delegate *connDelegate) SetDeadline(t time.Time) error {
return delegate.conn.SetDeadline(t)
}
func (delegate *connDelegate) SetReadDeadline(t time.Time) error {
return delegate.conn.SetReadDeadline(t)
}
func (delegate *connDelegate) SetWriteDeadline(t time.Time) error {
return delegate.conn.SetWriteDeadline(t)
}