func unmarshalError(r *aws.Request) {
defer r.HTTPResponse.Body.Close()
if r.HTTPResponse.ContentLength == int64(0) {
// No body, use status code to generate an awserr.Error
r.Error = apierr.NewRequestError(
apierr.New(strings.Replace(r.HTTPResponse.Status, " ", "", -1), r.HTTPResponse.Status, nil),
r.HTTPResponse.StatusCode,
"",
)
return
}
resp := &xmlErrorResponse{}
err := xml.NewDecoder(r.HTTPResponse.Body).Decode(resp)
if err != nil && err != io.EOF {
r.Error = apierr.New("Unmarshal", "failed to decode S3 XML error response", nil)
} else {
r.Error = apierr.NewRequestError(
apierr.New(resp.Code, resp.Message, nil),
r.HTTPResponse.StatusCode,
"",
)
}
}
// UnmarshalError unmarshals a response error for the REST JSON protocol.
func UnmarshalError(r *aws.Request) {
code := r.HTTPResponse.Header.Get("X-Amzn-Errortype")
bodyBytes, err := ioutil.ReadAll(r.HTTPResponse.Body)
if err != nil {
r.Error = apierr.New("Unmarshal", "failed reading REST JSON error response", err)
return
}
if len(bodyBytes) == 0 {
r.Error = apierr.NewRequestError(
apierr.New("Unmarshal", r.HTTPResponse.Status, nil),
r.HTTPResponse.StatusCode,
"",
)
return
}
var jsonErr jsonErrorResponse
if err := json.Unmarshal(bodyBytes, &jsonErr); err != nil {
r.Error = apierr.New("Unmarshal", "failed decoding REST JSON error response", err)
return
}
if code == "" {
code = jsonErr.Code
}
codes := strings.SplitN(code, ":", 2)
r.Error = apierr.NewRequestError(
apierr.New(codes[0], jsonErr.Message, nil),
r.HTTPResponse.StatusCode,
"",
)
}
// UnmarshalError unmarshals an error response for a JSON RPC service.
func UnmarshalError(req *aws.Request) {
defer req.HTTPResponse.Body.Close()
bodyBytes, err := ioutil.ReadAll(req.HTTPResponse.Body)
if err != nil {
req.Error = apierr.New("Unmarshal", "failed reading JSON RPC error response", err)
return
}
if len(bodyBytes) == 0 {
req.Error = apierr.NewRequestError(
apierr.New("Unmarshal", req.HTTPResponse.Status, nil),
req.HTTPResponse.StatusCode,
"",
)
return
}
var jsonErr jsonErrorResponse
if err := json.Unmarshal(bodyBytes, &jsonErr); err != nil {
req.Error = apierr.New("Unmarshal", "failed decoding JSON RPC error response", err)
return
}
codes := strings.SplitN(jsonErr.Code, "#", 2)
req.Error = apierr.NewRequestError(
apierr.New(codes[len(codes)-1], jsonErr.Message, nil),
req.HTTPResponse.StatusCode,
"",
)
}
func UnmarshalError(req *aws.Request) {
bodyBytes, err := ioutil.ReadAll(req.HTTPResponse.Body)
if err != nil {
req.Error = err
return
}
if len(bodyBytes) == 0 {
req.Error = aws.APIError{
StatusCode: req.HTTPResponse.StatusCode,
Message: req.HTTPResponse.Status,
}
return
}
var jsonErr jsonErrorResponse
if err := json.Unmarshal(bodyBytes, &jsonErr); err != nil {
req.Error = err
return
}
codes := strings.SplitN(jsonErr.Code, "#", 2)
req.Error = aws.APIError{
StatusCode: req.HTTPResponse.StatusCode,
Code: codes[len(codes)-1],
Message: jsonErr.Message,
}
}
// UnmarshalError unmarshals an error response for an AWS Query service.
func UnmarshalError(r *aws.Request) {
defer r.HTTPResponse.Body.Close()
resp := &xmlErrorResponse{}
err := xml.NewDecoder(r.HTTPResponse.Body).Decode(resp)
if err != nil && err != io.EOF {
r.Error = apierr.New("Unmarshal", "failed to decode query XML error response", err)
} else {
r.Error = apierr.NewRequestError(
apierr.New(resp.Code, resp.Message, nil),
r.HTTPResponse.StatusCode,
resp.RequestID,
)
}
}
func unmarshalError(r *aws.Request) {
defer r.HTTPResponse.Body.Close()
resp := &xmlErrorResponse{}
err := xml.NewDecoder(r.HTTPResponse.Body).Decode(resp)
if err != nil && err != io.EOF {
r.Error = err
} else {
r.Error = aws.APIError{
StatusCode: r.HTTPResponse.StatusCode,
Code: resp.Code,
Message: resp.Message,
}
}
}
// Sign requests with signature version 4.
func Sign(req *aws.Request) {
creds, err := req.Service.Config.Credentials.Credentials()
if err != nil {
req.Error = err
return
}
region := req.Service.SigningRegion
if region == "" {
region = req.Service.Config.Region
}
s := signer{
Request: req.HTTPRequest,
Time: req.Time,
ExpireTime: req.ExpireTime,
Query: req.HTTPRequest.URL.Query(),
Body: req.Body,
ServiceName: req.Service.ServiceName,
Region: region,
AccessKeyID: creds.AccessKeyID,
SecretAccessKey: creds.SecretAccessKey,
SessionToken: creds.SessionToken,
Debug: req.Service.Config.LogLevel,
Logger: req.Service.Config.Logger,
}
s.sign()
return
}
// Build builds a JSON payload for a JSON RPC request.
func Build(req *aws.Request) {
var buf []byte
var err error
if req.ParamsFilled() {
buf, err = jsonutil.BuildJSON(req.Params)
if err != nil {
req.Error = apierr.New("Marshal", "failed encoding JSON RPC request", err)
return
}
} else {
buf = emptyJSON
}
if req.Service.TargetPrefix != "" || string(buf) != "{}" {
req.SetBufferBody(buf)
}
if req.Service.TargetPrefix != "" {
target := req.Service.TargetPrefix + "." + req.Operation.Name
req.HTTPRequest.Header.Add("X-Amz-Target", target)
}
if req.Service.JSONVersion != "" {
jsonVersion := req.Service.JSONVersion
req.HTTPRequest.Header.Add("Content-Type", "application/x-amz-json-"+jsonVersion)
}
}
func validateSSERequiresSSL(r *aws.Request) {
if r.HTTPRequest.URL.Scheme != "https" {
p := awsutil.ValuesAtPath(r.Params, "SSECustomerKey||CopySourceSSECustomerKey")
if len(p) > 0 {
r.Error = errSSERequiresSSL
}
}
}
func buildQueryString(r *aws.Request, v reflect.Value, name string, query url.Values) {
str, err := convertType(v)
if err != nil {
r.Error = err
} else if str != nil {
query.Set(name, *str)
}
}
func buildHeader(r *aws.Request, v reflect.Value, name string) {
str, err := convertType(v)
if err != nil {
r.Error = err
} else if str != nil {
r.HTTPRequest.Header.Add(name, *str)
}
}
func buildHeader(r *aws.Request, v reflect.Value, name string) {
str, err := convertType(v)
if err != nil {
r.Error = apierr.New("Marshal", "failed to encode REST request", err)
} else if str != nil {
r.HTTPRequest.Header.Add(name, *str)
}
}
func buildQueryString(r *aws.Request, v reflect.Value, name string, query url.Values) {
str, err := convertType(v)
if err != nil {
r.Error = apierr.New("Marshal", "failed to encode REST request", err)
} else if str != nil {
query.Set(name, *str)
}
}
func Unmarshal(req *aws.Request) {
if req.DataFilled() {
err := jsonutil.UnmarshalJSON(req.Data, req.HTTPResponse.Body)
if err != nil {
req.Error = err
}
}
return
}
func buildHeaderMap(r *aws.Request, v reflect.Value, prefix string) {
for _, key := range v.MapKeys() {
str, err := convertType(v.MapIndex(key))
if err != nil {
r.Error = apierr.New("Marshal", "failed to encode REST request", err)
} else if str != nil {
r.HTTPRequest.Header.Add(prefix+key.String(), *str)
}
}
}
// Unmarshal unmarshals a response for a JSON RPC service.
func Unmarshal(req *aws.Request) {
defer req.HTTPResponse.Body.Close()
if req.DataFilled() {
err := jsonutil.UnmarshalJSON(req.Data, req.HTTPResponse.Body)
if err != nil {
req.Error = apierr.New("Unmarshal", "failed decoding JSON RPC response", err)
}
}
return
}
// Unmarshal unmarshals a payload response for the REST XML protocol.
func Unmarshal(r *aws.Request) {
if t := rest.PayloadType(r.Data); t == "structure" || t == "" {
defer r.HTTPResponse.Body.Close()
decoder := xml.NewDecoder(r.HTTPResponse.Body)
err := xmlutil.UnmarshalXML(r.Data, decoder, "")
if err != nil {
r.Error = apierr.New("Unmarshal", "failed to decode REST XML response", err)
return
}
}
}
func buildURI(r *aws.Request, v reflect.Value, name string) {
value, err := convertType(v)
if err != nil {
r.Error = err
} else if value != nil {
uri := r.HTTPRequest.URL.Path
uri = strings.Replace(uri, "{"+name+"}", escapePath(*value, true), -1)
uri = strings.Replace(uri, "{"+name+"+}", escapePath(*value, false), -1)
r.HTTPRequest.URL.Path = uri
}
}
func buildURI(r *aws.Request, v reflect.Value, name string) {
value, err := convertType(v)
if err != nil {
r.Error = apierr.New("Marshal", "failed to encode REST request", err)
} else if value != nil {
uri := r.HTTPRequest.URL.Path
uri = strings.Replace(uri, "{"+name+"}", EscapePath(*value, true), -1)
uri = strings.Replace(uri, "{"+name+"+}", EscapePath(*value, false), -1)
r.HTTPRequest.URL.Path = uri
}
}
func buildHeaderMap(r *aws.Request, v reflect.Value, prefix string) {
for _, key := range v.MapKeys() {
str, err := convertType(v.MapIndex(key))
if err != nil {
r.Error = err
} else if str != nil {
r.HTTPRequest.Header.Add(prefix+key.String(), *str)
}
}
}
func Unmarshal(r *aws.Request) {
defer r.HTTPResponse.Body.Close()
if r.DataFilled() {
decoder := xml.NewDecoder(r.HTTPResponse.Body)
err := xmlutil.UnmarshalXML(r.Data, decoder, r.Operation.Name+"Result")
if err != nil {
r.Error = err
return
}
}
}
// Unmarshal unmarshals a response for an AWS Query service.
func Unmarshal(r *aws.Request) {
defer r.HTTPResponse.Body.Close()
if r.DataFilled() {
decoder := xml.NewDecoder(r.HTTPResponse.Body)
err := xmlutil.UnmarshalXML(r.Data, decoder, r.Operation.Name+"Result")
if err != nil {
r.Error = apierr.New("Unmarshal", "failed decoding Query response", err)
return
}
}
}
func unmarshalBody(r *aws.Request, v reflect.Value) {
if field, ok := v.Type().FieldByName("SDKShapeTraits"); ok {
if payloadName := field.Tag.Get("payload"); payloadName != "" {
pfield, _ := v.Type().FieldByName(payloadName)
if ptag := pfield.Tag.Get("type"); ptag != "" && ptag != "structure" {
payload := v.FieldByName(payloadName)
if payload.IsValid() {
switch payload.Interface().(type) {
case []byte:
b, err := ioutil.ReadAll(r.HTTPResponse.Body)
if err != nil {
r.Error = apierr.New("Unmarshal", "failed to decode REST response", err)
} else {
payload.Set(reflect.ValueOf(b))
}
case *string:
b, err := ioutil.ReadAll(r.HTTPResponse.Body)
if err != nil {
r.Error = apierr.New("Unmarshal", "failed to decode REST response", err)
} else {
str := string(b)
payload.Set(reflect.ValueOf(&str))
}
default:
switch payload.Type().String() {
case "io.ReadSeeker":
payload.Set(reflect.ValueOf(aws.ReadSeekCloser(r.HTTPResponse.Body)))
case "aws.ReadSeekCloser", "io.ReadCloser":
payload.Set(reflect.ValueOf(r.HTTPResponse.Body))
default:
r.Error = apierr.New("Unmarshal",
"failed to decode REST response",
fmt.Errorf("unknown payload type %s", payload.Type()))
}
}
}
}
}
}
}
// Build builds a request payload for the REST XML protocol.
func Build(r *aws.Request) {
rest.Build(r)
if t := rest.PayloadType(r.Params); t == "structure" || t == "" {
var buf bytes.Buffer
err := xmlutil.BuildXML(r.Params, xml.NewEncoder(&buf))
if err != nil {
r.Error = apierr.New("Marshal", "failed to enode rest XML request", err)
return
}
r.SetBufferBody(buf.Bytes())
}
}
func Build(r *aws.Request) {
rest.Build(r)
if t := rest.PayloadType(r.Params); t == "structure" || t == "" {
var buf bytes.Buffer
err := xmlutil.BuildXML(r.Params, xml.NewEncoder(&buf))
if err != nil {
r.Error = err
return
}
r.SetBufferBody(buf.Bytes())
}
}
// contentMD5 computes and sets the HTTP Content-MD5 header for requests that
// require it.
func contentMD5(r *aws.Request) {
h := md5.New()
// hash the body. seek back to the first position after reading to reset
// the body for transmission. copy errors may be assumed to be from the
// body.
_, err := io.Copy(h, r.Body)
if err != nil {
r.Error = apierr.New("ContentMD5", "failed to read body", err)
return
}
_, err = r.Body.Seek(0, 0)
if err != nil {
r.Error = apierr.New("ContentMD5", "failed to seek body", err)
return
}
// encode the md5 checksum in base64 and set the request header.
sum := h.Sum(nil)
sum64 := make([]byte, base64.StdEncoding.EncodedLen(len(sum)))
base64.StdEncoding.Encode(sum64, sum)
r.HTTPRequest.Header.Set("Content-MD5", string(sum64))
}
func unmarshalLocationElements(r *aws.Request, v reflect.Value) {
for i := 0; i < v.NumField(); i++ {
m, field := v.Field(i), v.Type().Field(i)
if n := field.Name; n[0:1] == strings.ToLower(n[0:1]) {
continue
}
if m.IsValid() {
name := field.Tag.Get("locationName")
if name == "" {
name = field.Name
}
switch field.Tag.Get("location") {
case "statusCode":
unmarshalStatusCode(m, r.HTTPResponse.StatusCode)
case "header":
err := unmarshalHeader(m, r.HTTPResponse.Header.Get(name))
if err != nil {
r.Error = apierr.New("Unmarshal", "failed to decode REST response", err)
break
}
case "headers":
prefix := field.Tag.Get("locationName")
err := unmarshalHeaderMap(m, r.HTTPResponse.Header, prefix)
if err != nil {
r.Error = apierr.New("Unmarshal", "failed to decode REST response", err)
break
}
}
}
if r.Error != nil {
return
}
}
}
func buildGetBucketLocation(r *aws.Request) {
if r.DataFilled() {
out := r.Data.(*GetBucketLocationOutput)
b, err := ioutil.ReadAll(r.HTTPResponse.Body)
if err != nil {
r.Error = apierr.New("Unmarshal", "failed reading response body", err)
return
}
match := reBucketLocation.FindSubmatch(b)
if len(match) > 1 {
loc := string(match[1])
out.LocationConstraint = &loc
}
}
}
// Build builds a request for the EC2 protocol.
func Build(r *aws.Request) {
body := url.Values{
"Action": {r.Operation.Name},
"Version": {r.Service.APIVersion},
}
if err := queryutil.Parse(body, r.Params, true); err != nil {
r.Error = apierr.New("Marshal", "failed encoding EC2 Query request", err)
}
if r.ExpireTime == 0 {
r.HTTPRequest.Method = "POST"
r.HTTPRequest.Header.Set("Content-Type", "application/x-www-form-urlencoded; charset=utf-8")
r.SetBufferBody([]byte(body.Encode()))
} else { // This is a pre-signed request
r.HTTPRequest.Method = "GET"
r.HTTPRequest.URL.RawQuery = body.Encode()
}
}
func fillPresignedURL(r *aws.Request) {
if !r.ParamsFilled() {
return
}
params := r.Params.(*CopySnapshotInput)
// Stop if PresignedURL/DestinationRegion is set
if params.PresignedURL != nil || params.DestinationRegion != nil {
return
}
// First generate a copy of parameters
r.Params = awsutil.CopyOf(r.Params)
params = r.Params.(*CopySnapshotInput)
// Set destination region. Avoids infinite handler loop.
// Also needed to sign sub-request.
params.DestinationRegion = &r.Service.Config.Region
// Create a new client pointing at source region.
// We will use this to presign the CopySnapshot request against
// the source region
config := r.Service.Config.Copy()
config.Endpoint = ""
config.Region = *params.SourceRegion
client := New(&config)
// Presign a CopySnapshot request with modified params
req, _ := client.CopySnapshotRequest(params)
url, err := req.Presign(300 * time.Second) // 5 minutes should be enough.
if err != nil { // bubble error back up to original request
r.Error = err
}
// We have our URL, set it on params
params.PresignedURL = &url
}