Documentation
¶
Index ¶
Constants ¶
This section is empty.
Variables ¶
var AddHostExecEnvUserAgentHander = request.NamedHandler{
Name: "core.AddHostExecEnvUserAgentHander",
Fn: func(r *request.Request) {
v := os.Getenv(execEnvVar)
if len(v) == 0 {
return
}
request.AddToUserAgent(r, execEnvUAKey+"/"+v)
},
}
AddHostExecEnvUserAgentHander is a request handler appending the SDK's execution environment to the user agent.
If the environment variable AWS_EXECUTION_ENV is set, its value will be appended to the user agent string.
var AfterRetryHandler = request.NamedHandler{Name: "core.AfterRetryHandler", Fn: func(r *request.Request) {
if r.Retryable == nil || aws.BoolValue(r.Config.EnforceShouldRetryCheck) {
r.Retryable = aws.Bool(r.ShouldRetry(r))
}
if r.WillRetry() {
r.RetryDelay = r.RetryRules(r)
if sleepFn := r.Config.SleepDelay; sleepFn != nil {
sleepFn(r.RetryDelay)
} else if err := aws.SleepWithContext(r.Context(), r.RetryDelay); err != nil {
r.Error = awserr.New(request.CanceledErrorCode,
"request context canceled", err)
r.Retryable = aws.Bool(false)
return
}
if r.IsErrorExpired() {
r.Config.Credentials.Expire()
}
r.RetryCount++
r.Error = nil
}
}}
AfterRetryHandler performs final checks to determine if the request should be retried and how long to delay.
var BuildContentLengthHandler = request.NamedHandler{Name: "core.BuildContentLengthHandler", Fn: func(r *request.Request) {
var length int64
if slength := r.HTTPRequest.Header.Get("Content-Length"); slength != "" {
length, _ = strconv.ParseInt(slength, 10, 64)
} else {
if r.Body != nil {
var err error
length, err = aws.SeekerLen(r.Body)
if err != nil {
r.Error = awserr.New(request.ErrCodeSerialization, "failed to get request body's length", err)
return
}
}
}
if length > 0 {
r.HTTPRequest.ContentLength = length
r.HTTPRequest.Header.Set("Content-Length", fmt.Sprintf("%d", length))
} else {
r.HTTPRequest.ContentLength = 0
r.HTTPRequest.Header.Del("Content-Length")
}
}}
BuildContentLengthHandler builds the content length of a request based on the body, or will use the HTTPRequest.Header's "Content-Length" if defined. If unable to determine request body length and no "Content-Length" was specified it will panic.
The Content-Length will only be added to the request if the length of the body is greater than 0. If the body is empty or the current `Content-Length` header is <= 0, the header will also be stripped.
var SDKVersionUserAgentHandler = request.NamedHandler{
Name: "core.SDKVersionUserAgentHandler",
Fn: request.MakeAddToUserAgentHandler(aws.SDKName, aws.SDKVersion,
runtime.Version(), runtime.GOOS, runtime.GOARCH),
}
SDKVersionUserAgentHandler is a request handler for adding the SDK Version to the user agent.
var SendHandler = request.NamedHandler{
Name: "core.SendHandler",
Fn: func(r *request.Request) {
sender := sendFollowRedirects
if r.DisableFollowRedirects {
sender = sendWithoutFollowRedirects
}
if request.NoBody == r.HTTPRequest.Body {
reqOrig, reqCopy := r.HTTPRequest, *r.HTTPRequest
reqCopy.Body = nil
r.HTTPRequest = &reqCopy
defer func() {
r.HTTPRequest = reqOrig
}()
}
var err error
r.HTTPResponse, err = sender(r)
if err != nil {
handleSendError(r, err)
}
},
}
SendHandler is a request handler to send service request using HTTP client.
var ValidateEndpointHandler = request.NamedHandler{Name: "core.ValidateEndpointHandler", Fn: func(r *request.Request) {
if r.ClientInfo.SigningRegion == "" && aws.StringValue(r.Config.Region) == "" {
r.Error = aws.ErrMissingRegion
} else if r.ClientInfo.Endpoint == "" {
r.Error = aws.ErrMissingEndpoint
}
}}
ValidateEndpointHandler is a request handler to validate a request had the appropriate Region and Endpoint set. Will set r.Error if the endpoint or region is not valid.
var ValidateParametersHandler = request.NamedHandler{Name: "core.ValidateParametersHandler", Fn: func(r *request.Request) {
if !r.ParamsFilled() {
return
}
if v, ok := r.Params.(request.Validator); ok {
if err := v.Validate(); err != nil {
r.Error = err
}
}
}}
ValidateParametersHandler is a request handler to validate the input parameters. Validating parameters only has meaning if done prior to the request being sent.
var ValidateReqSigHandler = request.NamedHandler{
Name: "core.ValidateReqSigHandler",
Fn: func(r *request.Request) {
if r.Config.Credentials == credentials.AnonymousCredentials {
return
}
signedTime := r.Time
if !r.LastSignedAt.IsZero() {
signedTime = r.LastSignedAt
}
if signedTime.Add(10 * time.Minute).After(time.Now()) {
return
}
fmt.Println("request expired, resigning")
r.Sign()
},
}
ValidateReqSigHandler is a request handler to ensure that the request's signature doesn't expire before it is sent. This can happen when a request is built and signed significantly before it is sent. Or significant delays occur when retrying requests that would cause the signature to expire.
var ValidateResponseHandler = request.NamedHandler{Name: "core.ValidateResponseHandler", Fn: func(r *request.Request) {
if r.HTTPResponse.StatusCode == 0 || r.HTTPResponse.StatusCode >= 300 {
r.Error = awserr.New("UnknownError", "unknown error", nil)
}
}}
ValidateResponseHandler is a request handler to validate service response.
Functions ¶
This section is empty.
Types ¶
This section is empty.
Source Files