// Build builds the REST component of a service request.
func Build(r *aws.Request) {
if r.ParamsFilled() {
v := reflect.ValueOf(r.Params).Elem()
buildLocationElements(r, v)
buildBody(r, v)
}
}
// 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,
"",
)
}
// 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 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 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 assertMD5(t *testing.T, req *aws.Request) {
err := req.Build()
assert.NoError(t, err)
b, _ := ioutil.ReadAll(req.HTTPRequest.Body)
out := md5.Sum(b)
assert.NotEmpty(t, b)
assert.Equal(t, base64.StdEncoding.EncodeToString(out[:]), req.HTTPRequest.Header.Get("Content-MD5"))
}
// 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 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 populateLocationConstraint(r *aws.Request) {
if r.ParamsFilled() && r.Config.Region != "us-east-1" {
in := r.Params.(*CreateBucketInput)
if in.CreateBucketConfiguration == nil {
r.Params = awsutil.CopyOf(r.Params)
in = r.Params.(*CreateBucketInput)
in.CreateBucketConfiguration = &CreateBucketConfiguration{
LocationConstraint: &r.Config.Region,
}
}
}
}
// 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())
}
}
// UnmarshalError unmarshals a response error for the EC2 protocol.
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 decoding EC2 Query error response", err)
} else {
r.Error = apierr.NewRequestError(
apierr.New(resp.Code, resp.Message, nil),
r.HTTPResponse.StatusCode,
resp.RequestID,
)
}
}
func Sign(req *aws.Request) {
if req.Service.Config.Credentials == credentials.AnonymousCredentials {
return
}
region := req.Service.SigningRegion
if region == "" {
region = req.Service.Config.Region
}
name := req.Service.SigningName
if name == "" {
name = req.Service.ServiceName
}
s := signer{
Service: req.Service,
Request: req.HTTPRequest,
Time: req.Time,
ExpireTime: req.ExpireTime,
Query: req.HTTPRequest.URL.Query(),
Body: req.Body,
ServiceName: name,
Region: region,
Credentials: req.Service.Config.Credentials,
Debug: req.Service.Config.LogLevel,
Logger: req.Service.Config.Logger,
}
req.Error = s.sign()
}
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
}
}
}
// Sign requests with signature version 4.
//
// Will sign the requests with the service config's Credentials object
// Signing is skipped if the credentials is the credentials.AnonymousCredentials
// object.
func Sign(req *aws.Request) {
// If the request does not need to be signed ignore the signing of the
// request if the AnonymousCredentials object is used.
if req.Service.Config.Credentials == credentials.AnonymousCredentials {
return
}
region := req.Service.SigningRegion
if region == "" {
region = req.Service.Config.Region
}
name := req.Service.SigningName
if name == "" {
name = req.Service.ServiceName
}
s := signer{
Request: req.HTTPRequest,
Time: req.Time,
ExpireTime: req.ExpireTime,
Query: req.HTTPRequest.URL.Query(),
Body: req.Body,
ServiceName: name,
Region: region,
Credentials: req.Service.Config.Credentials,
Debug: req.Service.Config.LogLevel,
Logger: req.Service.Config.Logger,
}
req.Error = s.sign()
}
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 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 validateSSERequiresSSL(r *aws.Request) {
if /*r.HTTPRequest.URL.Scheme != "https"*/ false {
p := awsutil.ValuesAtPath(r.Params, "SSECustomerKey||CopySourceSSECustomerKey")
if len(p) > 0 {
r.Error = errSSERequiresSSL
}
}
}
// 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 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)
}
}
}
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
}
}
// 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
}
}
}
// 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 buildBody(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 := reflect.Indirect(v.FieldByName(payloadName))
if payload.IsValid() && payload.Interface() != nil {
switch reader := payload.Interface().(type) {
case io.ReadSeeker:
r.SetReaderBody(reader)
case []byte:
r.SetBufferBody(reader)
case string:
r.SetStringBody(reader)
default:
r.Error = apierr.New("Marshal",
"failed to encode REST request",
fmt.Errorf("unknown payload type %s", payload.Type()))
}
}
}
}
}
}
// UnmarshalMeta unmarshals headers from a response for a JSON RPC service.
func UnmarshalMeta(req *aws.Request) {
req.RequestID = req.HTTPResponse.Header.Get("x-amzn-requestid")
}