Merge pull request #2678 from caervs/bump_aws

Bump aws sdk to v1.15.11

vendor.conf

@@ -1,7 +1,7 @@
 github.com/Azure/azure-sdk-for-go 4650843026a7fdec254a8d9cf893693a254edd0b
 github.com/Azure/go-autorest eaa7994b2278094c904d31993d26f56324db3052
 github.com/sirupsen/logrus 3d4380f53a34dcdc95f0c1db702615992b38d9a4
-github.com/aws/aws-sdk-go 5bcc0a238d880469f949fc7cd24e35f32ab80cbd
+github.com/aws/aws-sdk-go f831d5a0822a1ad72420ab18c6269bca1ddaf490
 github.com/bshuster-repo/logrus-logstash-hook d2c0ecc1836d91814e15e23bb5dc309c3ef51f4a
 github.com/beorn7/perks 4c0e84591b9aa9e6dcfdf3e020114cd81f89d5f9
 github.com/bugsnag/bugsnag-go b1d153021fcd90ca3f080db36bec96dc690fb274

vendor/github.com/aws/aws-sdk-go/README.md

@@ -6,6 +6,8 @@ aws-sdk-go is the official AWS SDK for the Go programming language.
 
 Checkout our [release notes](https://github.com/aws/aws-sdk-go/releases) for information about the latest bug fixes, updates, and features added to the SDK.
 
+We [announced](https://aws.amazon.com/blogs/developer/aws-sdk-for-go-2-0-developer-preview/) the Developer Preview for the [v2 AWS SDK for Go](https://github.com/aws/aws-sdk-go-v2). The v2 SDK is available at https://github.com/aws/aws-sdk-go-v2, and `go get github.com/aws/aws-sdk-go-v2` via `go get`. Check out the v2 SDK's [changes and updates](https://github.com/aws/aws-sdk-go-v2/blob/master/CHANGELOG.md), and let us know what you think. We want your feedback. 
+
 ## Installing
 
 If you are using Go 1.5 with the `GO15VENDOREXPERIMENT=1` vendoring flag, or 1.6 and higher you can use the following command to retrieve the SDK. The SDK's non-testing dependencies will be included and are vendored in the `vendor` folder.
@@ -305,7 +307,7 @@ documentation for the errors that could be returned.
   // will leak connections.
   defer result.Body.Close()
 
-  fmt.Println("Object Size:", aws.StringValue(result.ContentLength))
+  fmt.Println("Object Size:", aws.Int64Value(result.ContentLength))
 ```
 
 ### API Request Pagination and Resource Waiters
@@ -332,7 +334,7 @@ take a callback function that will be called for each page of the API's response
 ```
 
 Waiter helper methods provide the functionality to wait for an AWS resource
-state. These methods abstract the logic needed to to check the state of an
+state. These methods abstract the logic needed to check the state of an
 AWS resource, and wait until that resource is in a desired state. The waiter
 will block until the resource is in the state that is desired, an error occurs,
 or the waiter times out. If a resource times out the error code returned will

vendor/github.com/aws/aws-sdk-go/aws/client/client.go

@@ -15,6 +15,12 @@ type Config struct {
 	Endpoint      string
 	SigningRegion string
 	SigningName   string
+
+	// States that the signing name did not come from a modeled source but
+	// was derived based on other data. Used by service client constructors
+	// to determine if the signin name can be overriden based on metadata the
+	// service has.
+	SigningNameDerived bool
 }
 
 // ConfigProvider provides a generic way for a service client to receive
@@ -85,6 +91,6 @@ func (c *Client) AddDebugHandlers() {
 		return
 	}
 
-	c.Handlers.Send.PushFrontNamed(request.NamedHandler{Name: "awssdk.client.LogRequest", Fn: logRequest})
-	c.Handlers.Send.PushBackNamed(request.NamedHandler{Name: "awssdk.client.LogResponse", Fn: logResponse})
+	c.Handlers.Send.PushFrontNamed(LogHTTPRequestHandler)
+	c.Handlers.Send.PushBackNamed(LogHTTPResponseHandler)
 }

vendor/github.com/aws/aws-sdk-go/aws/client/default_retryer.go

@@ -1,12 +1,11 @@
 package client
 
 import (
-	"math/rand"
 	"strconv"
-	"sync"
 	"time"
 
 	"github.com/aws/aws-sdk-go/aws/request"
+	"github.com/aws/aws-sdk-go/internal/sdkrand"
 )
 
 // DefaultRetryer implements basic retry logic using exponential backoff for
@@ -31,8 +30,6 @@ func (d DefaultRetryer) MaxRetries() int {
 	return d.NumMaxRetries
 }
 
-var seededRand = rand.New(&lockedSource{src: rand.NewSource(time.Now().UnixNano())})
-
 // RetryRules returns the delay duration before retrying this request again
 func (d DefaultRetryer) RetryRules(r *request.Request) time.Duration {
 	// Set the upper limit of delay in retrying at ~five minutes
@@ -53,7 +50,7 @@ func (d DefaultRetryer) RetryRules(r *request.Request) time.Duration {
 		retryCount = 13
 	}
 
-	delay := (1 << uint(retryCount)) * (seededRand.Intn(minTime) + minTime)
+	delay := (1 << uint(retryCount)) * (sdkrand.SeededRand.Intn(minTime) + minTime)
 	return time.Duration(delay) * time.Millisecond
 }
 
@@ -65,7 +62,7 @@ func (d DefaultRetryer) ShouldRetry(r *request.Request) bool {
 		return *r.Retryable
 	}
 
-	if r.HTTPResponse.StatusCode >= 500 {
+	if r.HTTPResponse.StatusCode >= 500 && r.HTTPResponse.StatusCode != 501 {
 		return true
 	}
 	return r.IsErrorRetryable() || d.shouldThrottle(r)
@@ -117,22 +114,3 @@ func canUseRetryAfterHeader(r *request.Request) bool {
 
 	return true
 }
-
-// lockedSource is a thread-safe implementation of rand.Source
-type lockedSource struct {
-	lk  sync.Mutex
-	src rand.Source
-}
-
-func (r *lockedSource) Int63() (n int64) {
-	r.lk.Lock()
-	n = r.src.Int63()
-	r.lk.Unlock()
-	return
-}
-
-func (r *lockedSource) Seed(seed int64) {
-	r.lk.Lock()
-	r.src.Seed(seed)
-	r.lk.Unlock()
-}

vendor/github.com/aws/aws-sdk-go/aws/client/logger.go

@@ -44,22 +44,57 @@ func (reader *teeReaderCloser) Close() error {
 	return reader.Source.Close()
 }
 
+// LogHTTPRequestHandler is a SDK request handler to log the HTTP request sent
+// to a service. Will include the HTTP request body if the LogLevel of the
+// request matches LogDebugWithHTTPBody.
+var LogHTTPRequestHandler = request.NamedHandler{
+	Name: "awssdk.client.LogRequest",
+	Fn:   logRequest,
+}
+
 func logRequest(r *request.Request) {
 	logBody := r.Config.LogLevel.Matches(aws.LogDebugWithHTTPBody)
-	dumpedBody, err := httputil.DumpRequestOut(r.HTTPRequest, logBody)
+	bodySeekable := aws.IsReaderSeekable(r.Body)
+
+	b, err := httputil.DumpRequestOut(r.HTTPRequest, logBody)
 	if err != nil {
-		r.Config.Logger.Log(fmt.Sprintf(logReqErrMsg, r.ClientInfo.ServiceName, r.Operation.Name, err))
+		r.Config.Logger.Log(fmt.Sprintf(logReqErrMsg,
+			r.ClientInfo.ServiceName, r.Operation.Name, err))
 		return
 	}
 
 	if logBody {
+		if !bodySeekable {
+			r.SetReaderBody(aws.ReadSeekCloser(r.HTTPRequest.Body))
+		}
 		// Reset the request body because dumpRequest will re-wrap the r.HTTPRequest's
 		// Body as a NoOpCloser and will not be reset after read by the HTTP
 		// client reader.
 		r.ResetBody()
 	}
 
-	r.Config.Logger.Log(fmt.Sprintf(logReqMsg, r.ClientInfo.ServiceName, r.Operation.Name, string(dumpedBody)))
+	r.Config.Logger.Log(fmt.Sprintf(logReqMsg,
+		r.ClientInfo.ServiceName, r.Operation.Name, string(b)))
+}
+
+// LogHTTPRequestHeaderHandler is a SDK request handler to log the HTTP request sent
+// to a service. Will only log the HTTP request's headers. The request payload
+// will not be read.
+var LogHTTPRequestHeaderHandler = request.NamedHandler{
+	Name: "awssdk.client.LogRequestHeader",
+	Fn:   logRequestHeader,
+}
+
+func logRequestHeader(r *request.Request) {
+	b, err := httputil.DumpRequestOut(r.HTTPRequest, false)
+	if err != nil {
+		r.Config.Logger.Log(fmt.Sprintf(logReqErrMsg,
+			r.ClientInfo.ServiceName, r.Operation.Name, err))
+		return
+	}
+
+	r.Config.Logger.Log(fmt.Sprintf(logReqMsg,
+		r.ClientInfo.ServiceName, r.Operation.Name, string(b)))
 }
 
 const logRespMsg = `DEBUG: Response %s/%s Details:
@@ -72,27 +107,44 @@ const logRespErrMsg = `DEBUG ERROR: Response %s/%s:
 %s
 -----------------------------------------------------`
 
+// LogHTTPResponseHandler is a SDK request handler to log the HTTP response
+// received from a service. Will include the HTTP response body if the LogLevel
+// of the request matches LogDebugWithHTTPBody.
+var LogHTTPResponseHandler = request.NamedHandler{
+	Name: "awssdk.client.LogResponse",
+	Fn:   logResponse,
+}
+
 func logResponse(r *request.Request) {
 	lw := &logWriter{r.Config.Logger, bytes.NewBuffer(nil)}
+
+	logBody := r.Config.LogLevel.Matches(aws.LogDebugWithHTTPBody)
+	if logBody {
 		r.HTTPResponse.Body = &teeReaderCloser{
 			Reader: io.TeeReader(r.HTTPResponse.Body, lw),
 			Source: r.HTTPResponse.Body,
 		}
+	}
 
 	handlerFn := func(req *request.Request) {
-		body, err := httputil.DumpResponse(req.HTTPResponse, false)
+		b, err := httputil.DumpResponse(req.HTTPResponse, false)
 		if err != nil {
-			lw.Logger.Log(fmt.Sprintf(logRespErrMsg, req.ClientInfo.ServiceName, req.Operation.Name, err))
+			lw.Logger.Log(fmt.Sprintf(logRespErrMsg,
+				req.ClientInfo.ServiceName, req.Operation.Name, err))
 			return
 		}
 
+		lw.Logger.Log(fmt.Sprintf(logRespMsg,
+			req.ClientInfo.ServiceName, req.Operation.Name, string(b)))
+
+		if logBody {
 			b, err := ioutil.ReadAll(lw.buf)
 			if err != nil {
-			lw.Logger.Log(fmt.Sprintf(logRespErrMsg, req.ClientInfo.ServiceName, req.Operation.Name, err))
+				lw.Logger.Log(fmt.Sprintf(logRespErrMsg,
+					req.ClientInfo.ServiceName, req.Operation.Name, err))
 				return
 			}
-		lw.Logger.Log(fmt.Sprintf(logRespMsg, req.ClientInfo.ServiceName, req.Operation.Name, string(body)))
-		if req.Config.LogLevel.Matches(aws.LogDebugWithHTTPBody) {
+
 			lw.Logger.Log(string(b))
 		}
 	}
@@ -106,3 +158,27 @@ func logResponse(r *request.Request) {
 		Name: handlerName, Fn: handlerFn,
 	})
 }
+
+// LogHTTPResponseHeaderHandler is a SDK request handler to log the HTTP
+// response received from a service. Will only log the HTTP response's headers.
+// The response payload will not be read.
+var LogHTTPResponseHeaderHandler = request.NamedHandler{
+	Name: "awssdk.client.LogResponseHeader",
+	Fn:   logResponseHeader,
+}
+
+func logResponseHeader(r *request.Request) {
+	if r.Config.Logger == nil {
+		return
+	}
+
+	b, err := httputil.DumpResponse(r.HTTPResponse, false)
+	if err != nil {
+		r.Config.Logger.Log(fmt.Sprintf(logRespErrMsg,
+			r.ClientInfo.ServiceName, r.Operation.Name, err))
+		return
+	}
+
+	r.Config.Logger.Log(fmt.Sprintf(logRespMsg,
+		r.ClientInfo.ServiceName, r.Operation.Name, string(b)))
+}

vendor/github.com/aws/aws-sdk-go/aws/client/metadata/client_info.go

@@ -3,6 +3,7 @@ package metadata
 // ClientInfo wraps immutable data from the client.Client structure.
 type ClientInfo struct {
 	ServiceName   string
+	ServiceID     string
 	APIVersion    string
 	Endpoint      string
 	SigningName   string

vendor/github.com/aws/aws-sdk-go/aws/config.go

@@ -151,6 +151,15 @@ type Config struct {
 	// with accelerate.
 	S3UseAccelerate *bool
 
+	// S3DisableContentMD5Validation config option is temporarily disabled,
+	// For S3 GetObject API calls, #1837.
+	//
+	// Set this to `true` to disable the S3 service client from automatically
+	// adding the ContentMD5 to S3 Object Put and Upload API calls. This option
+	// will also disable the SDK from performing object ContentMD5 validation
+	// on GetObject API calls.
+	S3DisableContentMD5Validation *bool
+
 	// Set this to `true` to disable the EC2Metadata client from overriding the
 	// default http.Client's Timeout. This is helpful if you do not want the
 	// EC2Metadata client to create a new http.Client. This options is only
@@ -168,7 +177,7 @@ type Config struct {
 	//
 	EC2MetadataDisableTimeoutOverride *bool
 
-	// Instructs the endpiont to be generated for a service client to
+	// Instructs the endpoint to be generated for a service client to
 	// be the dual stack endpoint. The dual stack endpoint will support
 	// both IPv4 and IPv6 addressing.
 	//
@@ -336,6 +345,15 @@ func (c *Config) WithS3Disable100Continue(disable bool) *Config {
 func (c *Config) WithS3UseAccelerate(enable bool) *Config {
 	c.S3UseAccelerate = &enable
 	return c
+
+}
+
+// WithS3DisableContentMD5Validation sets a config
+// S3DisableContentMD5Validation value returning a Config pointer for chaining.
+func (c *Config) WithS3DisableContentMD5Validation(enable bool) *Config {
+	c.S3DisableContentMD5Validation = &enable
+	return c
+
 }
 
 // WithUseDualStack sets a config UseDualStack value returning a Config
@@ -435,6 +453,10 @@ func mergeInConfig(dst *Config, other *Config) {
 		dst.S3UseAccelerate = other.S3UseAccelerate
 	}
 
+	if other.S3DisableContentMD5Validation != nil {
+		dst.S3DisableContentMD5Validation = other.S3DisableContentMD5Validation
+	}
+
 	if other.UseDualStack != nil {
 		dst.UseDualStack = other.UseDualStack
 	}

vendor/github.com/aws/aws-sdk-go/aws/corehandlers/handlers.go

@@ -3,12 +3,10 @@ package corehandlers
 import (
 	"bytes"
 	"fmt"
-	"io"
 	"io/ioutil"
 	"net/http"
 	"net/url"
 	"regexp"
-	"runtime"
 	"strconv"
 	"time"
 
@@ -36,18 +34,13 @@ var BuildContentLengthHandler = request.NamedHandler{Name: "core.BuildContentLen
 	if slength := r.HTTPRequest.Header.Get("Content-Length"); slength != "" {
 		length, _ = strconv.ParseInt(slength, 10, 64)
 	} else {
-		switch body := r.Body.(type) {
-		case nil:
-			length = 0
-		case lener:
-			length = int64(body.Len())
-		case io.Seeker:
-			r.BodyStart, _ = body.Seek(0, 1)
-			end, _ := body.Seek(0, 2)
-			body.Seek(r.BodyStart, 0) // make sure to seek back to original location
-			length = end - r.BodyStart
-		default:
-			panic("Cannot get length of body, must provide `ContentLength`")
+		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
+			}
 		}
 	}
 
@@ -60,13 +53,6 @@ var BuildContentLengthHandler = request.NamedHandler{Name: "core.BuildContentLen
 	}
 }}
 
-// SDKVersionUserAgentHandler is a request handler for adding the SDK Version to the user agent.
-var SDKVersionUserAgentHandler = request.NamedHandler{
-	Name: "core.SDKVersionUserAgentHandler",
-	Fn: request.MakeAddToUserAgentHandler(aws.SDKName, aws.SDKVersion,
-		runtime.Version(), runtime.GOOS, runtime.GOARCH),
-}
-
 var reStatusCode = regexp.MustCompile(`^(\d{3})`)
 
 // ValidateReqSigHandler is a request handler to ensure that the request's

vendor/github.com/aws/aws-sdk-go/aws/corehandlers/user_agent.go

@@ -0,0 +1,37 @@
+package corehandlers
+
+import (
+	"os"
+	"runtime"
+
+	"github.com/aws/aws-sdk-go/aws"
+	"github.com/aws/aws-sdk-go/aws/request"
+)
+
+// SDKVersionUserAgentHandler is a request handler for adding the SDK Version
+// to the user agent.
+var SDKVersionUserAgentHandler = request.NamedHandler{
+	Name: "core.SDKVersionUserAgentHandler",
+	Fn: request.MakeAddToUserAgentHandler(aws.SDKName, aws.SDKVersion,
+		runtime.Version(), runtime.GOOS, runtime.GOARCH),
+}
+
+const execEnvVar = `AWS_EXECUTION_ENV`
+const execEnvUAKey = `exec_env`
+
+// 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 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)
+	},
+}

vendor/github.com/aws/aws-sdk-go/aws/credentials/credentials.go

@@ -158,13 +158,14 @@ func (e *Expiry) SetExpiration(expiration time.Time, window time.Duration) {
 
 // IsExpired returns if the credentials are expired.
 func (e *Expiry) IsExpired() bool {
-	if e.CurrentTime == nil {
-		e.CurrentTime = time.Now
+	curTime := e.CurrentTime
+	if curTime == nil {
+		curTime = time.Now
 	}
-	return e.expiration.Before(e.CurrentTime())
+	return e.expiration.Before(curTime())
 }
 
-// A Credentials provides synchronous safe retrieval of AWS credentials Value.
+// A Credentials provides concurrency safe retrieval of AWS credentials Value.
 // Credentials will cache the credentials value until they expire. Once the value
 // expires the next Get will attempt to retrieve valid credentials.
 //
@@ -178,7 +179,8 @@ func (e *Expiry) IsExpired() bool {
 type Credentials struct {
 	creds        Value
 	forceRefresh bool
-	m            sync.Mutex
+
+	m sync.RWMutex
 
 	provider Provider
 }
@@ -201,6 +203,17 @@ func NewCredentials(provider Provider) *Credentials {
 // If Credentials.Expire() was called the credentials Value will be force
 // expired, and the next call to Get() will cause them to be refreshed.
 func (c *Credentials) Get() (Value, error) {
+	// Check the cached credentials first with just the read lock.
+	c.m.RLock()
+	if !c.isExpired() {
+		creds := c.creds
+		c.m.RUnlock()
+		return creds, nil
+	}
+	c.m.RUnlock()
+
+	// Credentials are expired need to retrieve the credentials taking the full
+	// lock.
 	c.m.Lock()
 	defer c.m.Unlock()
 
@@ -234,8 +247,8 @@ func (c *Credentials) Expire() {
 // If the Credentials were forced to be expired with Expire() this will
 // reflect that override.
 func (c *Credentials) IsExpired() bool {
-	c.m.Lock()
-	defer c.m.Unlock()
+	c.m.RLock()
+	defer c.m.RUnlock()
 
 	return c.isExpired()
 }

vendor/github.com/aws/aws-sdk-go/aws/credentials/ec2rolecreds/ec2_role_provider.go

@@ -4,7 +4,6 @@ import (
 	"bufio"
 	"encoding/json"
 	"fmt"
-	"path"
 	"strings"
 	"time"
 
@@ -12,6 +11,7 @@ import (
 	"github.com/aws/aws-sdk-go/aws/client"
 	"github.com/aws/aws-sdk-go/aws/credentials"
 	"github.com/aws/aws-sdk-go/aws/ec2metadata"
+	"github.com/aws/aws-sdk-go/internal/sdkuri"
 )
 
 // ProviderName provides a name of EC2Role provider
@@ -125,7 +125,7 @@ type ec2RoleCredRespBody struct {
 	Message string
 }
 
-const iamSecurityCredsPath = "/iam/security-credentials"
+const iamSecurityCredsPath = "iam/security-credentials/"
 
 // requestCredList requests a list of credentials from the EC2 service.
 // If there are no credentials, or there is an error making or receiving the request
@@ -153,7 +153,7 @@ func requestCredList(client *ec2metadata.EC2Metadata) ([]string, error) {
 // If the credentials cannot be found, or there is an error reading the response
 // and error will be returned.
 func requestCred(client *ec2metadata.EC2Metadata, credsName string) (ec2RoleCredRespBody, error) {
-	resp, err := client.GetMetadata(path.Join(iamSecurityCredsPath, credsName))
+	resp, err := client.GetMetadata(sdkuri.PathJoin(iamSecurityCredsPath, credsName))
 	if err != nil {
 		return ec2RoleCredRespBody{},
 			awserr.New("EC2RoleRequestError",

vendor/github.com/aws/aws-sdk-go/aws/csm/doc.go

@@ -0,0 +1,46 @@
+// Package csm provides Client Side Monitoring (CSM) which enables sending metrics
+// via UDP connection. Using the Start function will enable the reporting of
+// metrics on a given port. If Start is called, with different parameters, again,
+// a panic will occur.
+//
+// Pause can be called to pause any metrics publishing on a given port. Sessions
+// that have had their handlers modified via InjectHandlers may still be used.
+// However, the handlers will act as a no-op meaning no metrics will be published.
+//
+//	Example:
+//		r, err := csm.Start("clientID", ":31000")
+//		if err != nil {
+//			panic(fmt.Errorf("failed starting CSM:  %v", err))
+//		}
+//
+//		sess, err := session.NewSession(&aws.Config{})
+//		if err != nil {
+//			panic(fmt.Errorf("failed loading session: %v", err))
+//		}
+//
+//		r.InjectHandlers(&sess.Handlers)
+//
+//		client := s3.New(sess)
+//		resp, err := client.GetObject(&s3.GetObjectInput{
+//			Bucket: aws.String("bucket"),
+//			Key: aws.String("key"),
+//		})
+//
+//		// Will pause monitoring
+//		r.Pause()
+//		resp, err = client.GetObject(&s3.GetObjectInput{
+//			Bucket: aws.String("bucket"),
+//			Key: aws.String("key"),
+//		})
+//
+//		// Resume monitoring
+//		r.Continue()
+//
+// Start returns a Reporter that is used to enable or disable monitoring. If
+// access to the Reporter is required later, calling Get will return the Reporter
+// singleton.
+//
+//	Example:
+//		r := csm.Get()
+//		r.Continue()
+package csm

vendor/github.com/aws/aws-sdk-go/aws/csm/enable.go

@@ -0,0 +1,67 @@
+package csm
+
+import (
+	"fmt"
+	"sync"
+)
+
+var (
+	lock sync.Mutex
+)
+
+// Client side metric handler names
+const (
+	APICallMetricHandlerName        = "awscsm.SendAPICallMetric"
+	APICallAttemptMetricHandlerName = "awscsm.SendAPICallAttemptMetric"
+)
+
+// Start will start the a long running go routine to capture
+// client side metrics. Calling start multiple time will only
+// start the metric listener once and will panic if a different
+// client ID or port is passed in.
+//
+//	Example:
+//		r, err := csm.Start("clientID", "127.0.0.1:8094")
+//		if err != nil {
+//			panic(fmt.Errorf("expected no error, but received %v", err))
+//		}
+//		sess := session.NewSession()
+//		r.InjectHandlers(sess.Handlers)
+//
+//		svc := s3.New(sess)
+//		out, err := svc.GetObject(&s3.GetObjectInput{
+//			Bucket: aws.String("bucket"),
+//			Key: aws.String("key"),
+//		})
+func Start(clientID string, url string) (*Reporter, error) {
+	lock.Lock()
+	defer lock.Unlock()
+
+	if sender == nil {
+		sender = newReporter(clientID, url)
+	} else {
+		if sender.clientID != clientID {
+			panic(fmt.Errorf("inconsistent client IDs. %q was expected, but received %q", sender.clientID, clientID))
+		}
+
+		if sender.url != url {
+			panic(fmt.Errorf("inconsistent URLs. %q was expected, but received %q", sender.url, url))
+		}
+	}
+
+	if err := connect(url); err != nil {
+		sender = nil
+		return nil, err
+	}
+
+	return sender, nil
+}
+
+// Get will return a reporter if one exists, if one does not exist, nil will
+// be returned.
+func Get() *Reporter {
+	lock.Lock()
+	defer lock.Unlock()
+
+	return sender
+}

vendor/github.com/aws/aws-sdk-go/aws/csm/metric.go

@@ -0,0 +1,51 @@
+package csm
+
+import (
+	"strconv"
+	"time"
+)
+
+type metricTime time.Time
+
+func (t metricTime) MarshalJSON() ([]byte, error) {
+	ns := time.Duration(time.Time(t).UnixNano())
+	return []byte(strconv.FormatInt(int64(ns/time.Millisecond), 10)), nil
+}
+
+type metric struct {
+	ClientID  *string     `json:"ClientId,omitempty"`
+	API       *string     `json:"Api,omitempty"`
+	Service   *string     `json:"Service,omitempty"`
+	Timestamp *metricTime `json:"Timestamp,omitempty"`
+	Type      *string     `json:"Type,omitempty"`
+	Version   *int        `json:"Version,omitempty"`
+
+	AttemptCount *int `json:"AttemptCount,omitempty"`
+	Latency      *int `json:"Latency,omitempty"`
+
+	Fqdn           *string `json:"Fqdn,omitempty"`
+	UserAgent      *string `json:"UserAgent,omitempty"`
+	AttemptLatency *int    `json:"AttemptLatency,omitempty"`
+
+	SessionToken   *string `json:"SessionToken,omitempty"`
+	Region         *string `json:"Region,omitempty"`
+	AccessKey      *string `json:"AccessKey,omitempty"`
+	HTTPStatusCode *int    `json:"HttpStatusCode,omitempty"`
+	XAmzID2        *string `json:"XAmzId2,omitempty"`
+	XAmzRequestID  *string `json:"XAmznRequestId,omitempty"`
+
+	AWSException        *string `json:"AwsException,omitempty"`
+	AWSExceptionMessage *string `json:"AwsExceptionMessage,omitempty"`
+	SDKException        *string `json:"SdkException,omitempty"`
+	SDKExceptionMessage *string `json:"SdkExceptionMessage,omitempty"`
+
+	DestinationIP    *string `json:"DestinationIp,omitempty"`
+	ConnectionReused *int    `json:"ConnectionReused,omitempty"`
+
+	AcquireConnectionLatency *int `json:"AcquireConnectionLatency,omitempty"`
+	ConnectLatency           *int `json:"ConnectLatency,omitempty"`
+	RequestLatency           *int `json:"RequestLatency,omitempty"`
+	DNSLatency               *int `json:"DnsLatency,omitempty"`
+	TCPLatency               *int `json:"TcpLatency,omitempty"`
+	SSLLatency               *int `json:"SslLatency,omitempty"`
+}

vendor/github.com/aws/aws-sdk-go/aws/csm/metric_chan.go

@@ -0,0 +1,54 @@
+package csm
+
+import (
+	"sync/atomic"
+)
+
+const (
+	runningEnum = iota
+	pausedEnum
+)
+
+var (
+	// MetricsChannelSize of metrics to hold in the channel
+	MetricsChannelSize = 100
+)
+
+type metricChan struct {
+	ch     chan metric
+	paused int64
+}
+
+func newMetricChan(size int) metricChan {
+	return metricChan{
+		ch: make(chan metric, size),
+	}
+}
+
+func (ch *metricChan) Pause() {
+	atomic.StoreInt64(&ch.paused, pausedEnum)
+}
+
+func (ch *metricChan) Continue() {
+	atomic.StoreInt64(&ch.paused, runningEnum)
+}
+
+func (ch *metricChan) IsPaused() bool {
+	v := atomic.LoadInt64(&ch.paused)
+	return v == pausedEnum
+}
+
+// Push will push metrics to the metric channel if the channel
+// is not paused
+func (ch *metricChan) Push(m metric) bool {
+	if ch.IsPaused() {
+		return false
+	}
+
+	select {
+	case ch.ch <- m:
+		return true
+	default:
+		return false
+	}
+}

vendor/github.com/aws/aws-sdk-go/aws/csm/reporter.go

@@ -0,0 +1,231 @@
+package csm
+
+import (
+	"encoding/json"
+	"net"
+	"time"
+
+	"github.com/aws/aws-sdk-go/aws"
+	"github.com/aws/aws-sdk-go/aws/awserr"
+	"github.com/aws/aws-sdk-go/aws/request"
+)
+
+const (
+	// DefaultPort is used when no port is specified
+	DefaultPort = "31000"
+)
+
+// Reporter will gather metrics of API requests made and
+// send those metrics to the CSM endpoint.
+type Reporter struct {
+	clientID  string
+	url       string
+	conn      net.Conn
+	metricsCh metricChan
+	done      chan struct{}
+}
+
+var (
+	sender *Reporter
+)
+
+func connect(url string) error {
+	const network = "udp"
+	if err := sender.connect(network, url); err != nil {
+		return err
+	}
+
+	if sender.done == nil {
+		sender.done = make(chan struct{})
+		go sender.start()
+	}
+
+	return nil
+}
+
+func newReporter(clientID, url string) *Reporter {
+	return &Reporter{
+		clientID:  clientID,
+		url:       url,
+		metricsCh: newMetricChan(MetricsChannelSize),
+	}
+}
+
+func (rep *Reporter) sendAPICallAttemptMetric(r *request.Request) {
+	if rep == nil {
+		return
+	}
+
+	now := time.Now()
+	creds, _ := r.Config.Credentials.Get()
+
+	m := metric{
+		ClientID:  aws.String(rep.clientID),
+		API:       aws.String(r.Operation.Name),
+		Service:   aws.String(r.ClientInfo.ServiceID),
+		Timestamp: (*metricTime)(&now),
+		UserAgent: aws.String(r.HTTPRequest.Header.Get("User-Agent")),
+		Region:    r.Config.Region,
+		Type:      aws.String("ApiCallAttempt"),
+		Version:   aws.Int(1),
+
+		XAmzRequestID: aws.String(r.RequestID),
+
+		AttemptCount:   aws.Int(r.RetryCount + 1),
+		AttemptLatency: aws.Int(int(now.Sub(r.AttemptTime).Nanoseconds() / int64(time.Millisecond))),
+		AccessKey:      aws.String(creds.AccessKeyID),
+	}
+
+	if r.HTTPResponse != nil {
+		m.HTTPStatusCode = aws.Int(r.HTTPResponse.StatusCode)
+	}
+
+	if r.Error != nil {
+		if awserr, ok := r.Error.(awserr.Error); ok {
+			setError(&m, awserr)
+		}
+	}
+
+	rep.metricsCh.Push(m)
+}
+
+func setError(m *metric, err awserr.Error) {
+	msg := err.Error()
+	code := err.Code()
+
+	switch code {
+	case "RequestError",
+		"SerializationError",
+		request.CanceledErrorCode:
+		m.SDKException = &code
+		m.SDKExceptionMessage = &msg
+	default:
+		m.AWSException = &code
+		m.AWSExceptionMessage = &msg
+	}
+}
+
+func (rep *Reporter) sendAPICallMetric(r *request.Request) {
+	if rep == nil {
+		return
+	}
+
+	now := time.Now()
+	m := metric{
+		ClientID:      aws.String(rep.clientID),
+		API:           aws.String(r.Operation.Name),
+		Service:       aws.String(r.ClientInfo.ServiceID),
+		Timestamp:     (*metricTime)(&now),
+		Type:          aws.String("ApiCall"),
+		AttemptCount:  aws.Int(r.RetryCount + 1),
+		Latency:       aws.Int(int(time.Now().Sub(r.Time) / time.Millisecond)),
+		XAmzRequestID: aws.String(r.RequestID),
+	}
+
+	// TODO: Probably want to figure something out for logging dropped
+	// metrics
+	rep.metricsCh.Push(m)
+}
+
+func (rep *Reporter) connect(network, url string) error {
+	if rep.conn != nil {
+		rep.conn.Close()
+	}
+
+	conn, err := net.Dial(network, url)
+	if err != nil {
+		return awserr.New("UDPError", "Could not connect", err)
+	}
+
+	rep.conn = conn
+
+	return nil
+}
+
+func (rep *Reporter) close() {
+	if rep.done != nil {
+		close(rep.done)
+	}
+
+	rep.metricsCh.Pause()
+}
+
+func (rep *Reporter) start() {
+	defer func() {
+		rep.metricsCh.Pause()
+	}()
+
+	for {
+		select {
+		case <-rep.done:
+			rep.done = nil
+			return
+		case m := <-rep.metricsCh.ch:
+			// TODO: What to do with this error? Probably should just log
+			b, err := json.Marshal(m)
+			if err != nil {
+				continue
+			}
+
+			rep.conn.Write(b)
+		}
+	}
+}
+
+// Pause will pause the metric channel preventing any new metrics from
+// being added.
+func (rep *Reporter) Pause() {
+	lock.Lock()
+	defer lock.Unlock()
+
+	if rep == nil {
+		return
+	}
+
+	rep.close()
+}
+
+// Continue will reopen the metric channel and allow for monitoring
+// to be resumed.
+func (rep *Reporter) Continue() {
+	lock.Lock()
+	defer lock.Unlock()
+	if rep == nil {
+		return
+	}
+
+	if !rep.metricsCh.IsPaused() {
+		return
+	}
+
+	rep.metricsCh.Continue()
+}
+
+// InjectHandlers will will enable client side metrics and inject the proper
+// handlers to handle how metrics are sent.
+//
+//	Example:
+//		// Start must be called in order to inject the correct handlers
+//		r, err := csm.Start("clientID", "127.0.0.1:8094")
+//		if err != nil {
+//			panic(fmt.Errorf("expected no error, but received %v", err))
+//		}
+//
+//		sess := session.NewSession()
+//		r.InjectHandlers(&sess.Handlers)
+//
+//		// create a new service client with our client side metric session
+//		svc := s3.New(sess)
+func (rep *Reporter) InjectHandlers(handlers *request.Handlers) {
+	if rep == nil {
+		return
+	}
+
+	apiCallHandler := request.NamedHandler{Name: APICallMetricHandlerName, Fn: rep.sendAPICallMetric}
+	apiCallAttemptHandler := request.NamedHandler{Name: APICallAttemptMetricHandlerName, Fn: rep.sendAPICallAttemptMetric}
+
+	handlers.Complete.PushFrontNamed(apiCallHandler)
+	handlers.Complete.PushFrontNamed(apiCallAttemptHandler)
+
+	handlers.AfterRetry.PushFrontNamed(apiCallAttemptHandler)
+}

vendor/github.com/aws/aws-sdk-go/aws/defaults/defaults.go

@@ -9,6 +9,7 @@ package defaults
 
 import (
 	"fmt"
+	"net"
 	"net/http"
 	"net/url"
 	"os"
@@ -72,6 +73,7 @@ func Handlers() request.Handlers {
 	handlers.Validate.PushBackNamed(corehandlers.ValidateEndpointHandler)
 	handlers.Validate.AfterEachFn = request.HandlerListStopOnError
 	handlers.Build.PushBackNamed(corehandlers.SDKVersionUserAgentHandler)
+	handlers.Build.PushBackNamed(corehandlers.AddHostExecEnvUserAgentHander)
 	handlers.Build.AfterEachFn = request.HandlerListStopOnError
 	handlers.Sign.PushBackNamed(corehandlers.BuildContentLengthHandler)
 	handlers.Send.PushBackNamed(corehandlers.ValidateReqSigHandler)
@@ -90,12 +92,23 @@ func Handlers() request.Handlers {
 func CredChain(cfg *aws.Config, handlers request.Handlers) *credentials.Credentials {
 	return credentials.NewCredentials(&credentials.ChainProvider{
 		VerboseErrors: aws.BoolValue(cfg.CredentialsChainVerboseErrors),
-		Providers: []credentials.Provider{
+		Providers:     CredProviders(cfg, handlers),
+	})
+}
+
+// CredProviders returns the slice of providers used in
+// the default credential chain.
+//
+// For applications that need to use some other provider (for example use
+// different  environment variables for legacy reasons) but still fall back
+// on the default chain of providers. This allows that default chaint to be
+// automatically updated
+func CredProviders(cfg *aws.Config, handlers request.Handlers) []credentials.Provider {
+	return []credentials.Provider{
 		&credentials.EnvProvider{},
 		&credentials.SharedCredentialsProvider{Filename: "", Profile: ""},
 		RemoteCredProvider(*cfg, handlers),
-		},
-	})
+	}
 }
 
 const (
@@ -118,14 +131,43 @@ func RemoteCredProvider(cfg aws.Config, handlers request.Handlers) credentials.P
 	return ec2RoleProvider(cfg, handlers)
 }
 
+var lookupHostFn = net.LookupHost
+
+func isLoopbackHost(host string) (bool, error) {
+	ip := net.ParseIP(host)
+	if ip != nil {
+		return ip.IsLoopback(), nil
+	}
+
+	// Host is not an ip, perform lookup
+	addrs, err := lookupHostFn(host)
+	if err != nil {
+		return false, err
+	}
+	for _, addr := range addrs {
+		if !net.ParseIP(addr).IsLoopback() {
+			return false, nil
+		}
+	}
+
+	return true, nil
+}
+
 func localHTTPCredProvider(cfg aws.Config, handlers request.Handlers, u string) credentials.Provider {
 	var errMsg string
 
 	parsed, err := url.Parse(u)
 	if err != nil {
 		errMsg = fmt.Sprintf("invalid URL, %v", err)
-	} else if host := aws.URLHostname(parsed); !(host == "localhost" || host == "127.0.0.1") {
-		errMsg = fmt.Sprintf("invalid host address, %q, only localhost and 127.0.0.1 are valid.", host)
+	} else {
+		host := aws.URLHostname(parsed)
+		if len(host) == 0 {
+			errMsg = "unable to parse host from local HTTP cred provider URL"
+		} else if isLoopback, loopbackErr := isLoopbackHost(host); loopbackErr != nil {
+			errMsg = fmt.Sprintf("failed to resolve host %q, %v", host, loopbackErr)
+		} else if !isLoopback {
+			errMsg = fmt.Sprintf("invalid endpoint host, %q, only loopback hosts are allowed.", host)
+		}
 	}
 
 	if len(errMsg) > 0 {

vendor/github.com/aws/aws-sdk-go/aws/ec2metadata/api.go

@@ -4,12 +4,12 @@ import (
 	"encoding/json"
 	"fmt"
 	"net/http"
-	"path"
 	"strings"
 	"time"
 
 	"github.com/aws/aws-sdk-go/aws/awserr"
 	"github.com/aws/aws-sdk-go/aws/request"
+	"github.com/aws/aws-sdk-go/internal/sdkuri"
 )
 
 // GetMetadata uses the path provided to request information from the EC2
@@ -19,7 +19,7 @@ func (c *EC2Metadata) GetMetadata(p string) (string, error) {
 	op := &request.Operation{
 		Name:       "GetMetadata",
 		HTTPMethod: "GET",
-		HTTPPath:   path.Join("/", "meta-data", p),
+		HTTPPath:   sdkuri.PathJoin("/meta-data", p),
 	}
 
 	output := &metadataOutput{}
@@ -35,7 +35,7 @@ func (c *EC2Metadata) GetUserData() (string, error) {
 	op := &request.Operation{
 		Name:       "GetUserData",
 		HTTPMethod: "GET",
-		HTTPPath:   path.Join("/", "user-data"),
+		HTTPPath:   "/user-data",
 	}
 
 	output := &metadataOutput{}
@@ -56,7 +56,7 @@ func (c *EC2Metadata) GetDynamicData(p string) (string, error) {
 	op := &request.Operation{
 		Name:       "GetDynamicData",
 		HTTPMethod: "GET",
-		HTTPPath:   path.Join("/", "dynamic", p),
+		HTTPPath:   sdkuri.PathJoin("/dynamic", p),
 	}
 
 	output := &metadataOutput{}

vendor/github.com/aws/aws-sdk-go/aws/ec2metadata/service.go

@@ -1,5 +1,10 @@
 // Package ec2metadata provides the client for making API calls to the
 // EC2 Metadata service.
+//
+// This package's client can be disabled completely by setting the environment
+// variable "AWS_EC2_METADATA_DISABLED=true". This environment variable set to
+// true instructs the SDK to disable the EC2 Metadata client. The client cannot
+// be used while the environemnt variable is set to true, (case insensitive).
 package ec2metadata
 
 import (
@@ -7,17 +12,21 @@ import (
 	"errors"
 	"io"
 	"net/http"
+	"os"
+	"strings"
 	"time"
 
 	"github.com/aws/aws-sdk-go/aws"
 	"github.com/aws/aws-sdk-go/aws/awserr"
 	"github.com/aws/aws-sdk-go/aws/client"
 	"github.com/aws/aws-sdk-go/aws/client/metadata"
+	"github.com/aws/aws-sdk-go/aws/corehandlers"
 	"github.com/aws/aws-sdk-go/aws/request"
 )
 
 // ServiceName is the name of the service.
 const ServiceName = "ec2metadata"
+const disableServiceEnvVar = "AWS_EC2_METADATA_DISABLED"
 
 // A EC2Metadata is an EC2 Metadata service Client.
 type EC2Metadata struct {
@@ -75,6 +84,21 @@ func NewClient(cfg aws.Config, handlers request.Handlers, endpoint, signingRegio
 	svc.Handlers.Validate.Clear()
 	svc.Handlers.Validate.PushBack(validateEndpointHandler)
 
+	// Disable the EC2 Metadata service if the environment variable is set.
+	// This shortcirctes the service's functionality to always fail to send
+	// requests.
+	if strings.ToLower(os.Getenv(disableServiceEnvVar)) == "true" {
+		svc.Handlers.Send.SwapNamed(request.NamedHandler{
+			Name: corehandlers.SendHandler.Name,
+			Fn: func(r *request.Request) {
+				r.Error = awserr.New(
+					request.CanceledErrorCode,
+					"EC2 IMDS access disabled via "+disableServiceEnvVar+" env var",
+					nil)
+			},
+		})
+	}
+
 	// Add additional options to the service config
 	for _, option := range opts {
 		option(svc.Client)

vendor/github.com/aws/aws-sdk-go/aws/endpoints/decode.go

@@ -84,6 +84,7 @@ func decodeV3Endpoints(modelDef modelDefinition, opts DecodeModelOptions) (Resol
 		custAddEC2Metadata(p)
 		custAddS3DualStack(p)
 		custRmIotDataService(p)
+		custFixAppAutoscalingChina(p)
 	}
 
 	return ps, nil
@@ -122,6 +123,27 @@ func custRmIotDataService(p *partition) {
 	delete(p.Services, "data.iot")
 }
 
+func custFixAppAutoscalingChina(p *partition) {
+	if p.ID != "aws-cn" {
+		return
+	}
+
+	const serviceName = "application-autoscaling"
+	s, ok := p.Services[serviceName]
+	if !ok {
+		return
+	}
+
+	const expectHostname = `autoscaling.{region}.amazonaws.com`
+	if e, a := s.Defaults.Hostname, expectHostname; e != a {
+		fmt.Printf("custFixAppAutoscalingChina: ignoring customization, expected %s, got %s\n", e, a)
+		return
+	}
+
+	s.Defaults.Hostname = expectHostname + ".cn"
+	p.Services[serviceName] = s
+}
+
 type decodeModelError struct {
 	awsError
 }

vendor/github.com/aws/aws-sdk-go/aws/endpoints/endpoints.go

@@ -206,9 +206,10 @@ func (p Partition) EndpointFor(service, region string, opts ...func(*Options)) (
 // enumerating over the regions in a partition.
 func (p Partition) Regions() map[string]Region {
 	rs := map[string]Region{}
-	for id := range p.p.Regions {
+	for id, r := range p.p.Regions {
 		rs[id] = Region{
 			id:   id,
+			desc: r.Description,
 			p:    p.p,
 		}
 	}
@@ -240,6 +241,10 @@ type Region struct {
 // ID returns the region's identifier.
 func (r Region) ID() string { return r.id }
 
+// Description returns the region's description. The region description
+// is free text, it can be empty, and it may change between SDK releases.
+func (r Region) Description() string { return r.desc }
+
 // ResolveEndpoint resolves an endpoint from the context of the region given
 // a service. See Partition.EndpointFor for usage and errors that can be returned.
 func (r Region) ResolveEndpoint(service string, opts ...func(*Options)) (ResolvedEndpoint, error) {
@@ -284,9 +289,10 @@ func (s Service) ResolveEndpoint(region string, opts ...func(*Options)) (Resolve
 func (s Service) Regions() map[string]Region {
 	rs := map[string]Region{}
 	for id := range s.p.Services[s.id].Endpoints {
-		if _, ok := s.p.Regions[id]; ok {
+		if r, ok := s.p.Regions[id]; ok {
 			rs[id] = Region{
 				id:   id,
+				desc: r.Description,
 				p:    s.p,
 			}
 		}
@@ -347,6 +353,10 @@ type ResolvedEndpoint struct {
 	// The service name that should be used for signing requests.
 	SigningName string
 
+	// States that the signing name for this endpoint was derived from metadata
+	// passed in, but was not explicitly modeled.
+	SigningNameDerived bool
+
 	// The signing method that should be used for signing requests.
 	SigningMethod string
 }

vendor/github.com/aws/aws-sdk-go/aws/endpoints/v3model.go

@@ -226,15 +226,19 @@ func (e endpoint) resolve(service, region, dnsSuffix string, defs []endpoint, op
 	if len(signingRegion) == 0 {
 		signingRegion = region
 	}
+
 	signingName := e.CredentialScope.Service
+	var signingNameDerived bool
 	if len(signingName) == 0 {
 		signingName = service
+		signingNameDerived = true
 	}
 
 	return ResolvedEndpoint{
 		URL:                u,
 		SigningRegion:      signingRegion,
 		SigningName:        signingName,
+		SigningNameDerived: signingNameDerived,
 		SigningMethod:      getByPriority(e.SignatureVersions, signerPriority, defaultSigner),
 	}
 }

vendor/github.com/aws/aws-sdk-go/aws/logger.go

@@ -71,6 +71,12 @@ const (
 	// LogDebugWithRequestErrors states the SDK should log when service requests fail
 	// to build, send, validate, or unmarshal.
 	LogDebugWithRequestErrors
+
+	// LogDebugWithEventStreamBody states the SDK should log EventStream
+	// request and response bodys. This should be used to log the EventStream
+	// wire unmarshaled message content of requests and responses made while
+	// using the SDK Will also enable LogDebug.
+	LogDebugWithEventStreamBody
 )
 
 // A Logger is a minimalistic interface for the SDK to log messages to. Should

vendor/github.com/aws/aws-sdk-go/aws/request/handlers.go

@@ -14,6 +14,7 @@ type Handlers struct {
 	Send             HandlerList
 	ValidateResponse HandlerList
 	Unmarshal        HandlerList
+	UnmarshalStream  HandlerList
 	UnmarshalMeta    HandlerList
 	UnmarshalError   HandlerList
 	Retry            HandlerList
@@ -30,6 +31,7 @@ func (h *Handlers) Copy() Handlers {
 		Send:             h.Send.copy(),
 		ValidateResponse: h.ValidateResponse.copy(),
 		Unmarshal:        h.Unmarshal.copy(),
+		UnmarshalStream:  h.UnmarshalStream.copy(),
 		UnmarshalError:   h.UnmarshalError.copy(),
 		UnmarshalMeta:    h.UnmarshalMeta.copy(),
 		Retry:            h.Retry.copy(),
@@ -45,6 +47,7 @@ func (h *Handlers) Clear() {
 	h.Send.Clear()
 	h.Sign.Clear()
 	h.Unmarshal.Clear()
+	h.UnmarshalStream.Clear()
 	h.UnmarshalMeta.Clear()
 	h.UnmarshalError.Clear()
 	h.ValidateResponse.Clear()
@@ -172,6 +175,21 @@ func (l *HandlerList) SwapNamed(n NamedHandler) (swapped bool) {
 	return swapped
 }
 
+// Swap will swap out all handlers matching the name passed in. The matched
+// handlers will be swapped in. True is returned if the handlers were swapped.
+func (l *HandlerList) Swap(name string, replace NamedHandler) bool {
+	var swapped bool
+
+	for i := 0; i < len(l.list); i++ {
+		if l.list[i].Name == name {
+			l.list[i] = replace
+			swapped = true
+		}
+	}
+
+	return swapped
+}
+
 // SetBackNamed will replace the named handler if it exists in the handler list.
 // If the handler does not exist the handler will be added to the end of the list.
 func (l *HandlerList) SetBackNamed(n NamedHandler) {

vendor/github.com/aws/aws-sdk-go/aws/request/offset_reader.go

@@ -3,6 +3,8 @@ package request
 import (
 	"io"
 	"sync"
+
+	"github.com/aws/aws-sdk-go/internal/sdkio"
 )
 
 // offsetReader is a thread-safe io.ReadCloser to prevent racing
@@ -15,7 +17,7 @@ type offsetReader struct {
 
 func newOffsetReader(buf io.ReadSeeker, offset int64) *offsetReader {
 	reader := &offsetReader{}
-	buf.Seek(offset, 0)
+	buf.Seek(offset, sdkio.SeekStart)
 
 	reader.buf = buf
 	return reader

vendor/github.com/aws/aws-sdk-go/aws/request/request.go

@@ -14,6 +14,7 @@ import (
 	"github.com/aws/aws-sdk-go/aws"
 	"github.com/aws/aws-sdk-go/aws/awserr"
 	"github.com/aws/aws-sdk-go/aws/client/metadata"
+	"github.com/aws/aws-sdk-go/internal/sdkio"
 )
 
 const (
@@ -45,6 +46,7 @@ type Request struct {
 	Handlers   Handlers
 
 	Retryer
+	AttemptTime            time.Time
 	Time                   time.Time
 	Operation              *Operation
 	HTTPRequest            *http.Request
@@ -120,6 +122,7 @@ func New(cfg aws.Config, clientInfo metadata.ClientInfo, handlers Handlers,
 		Handlers:   handlers.Copy(),
 
 		Retryer:     retryer,
+		AttemptTime: time.Now(),
 		Time:        time.Now(),
 		ExpireTime:  0,
 		Operation:   operation,
@@ -224,6 +227,9 @@ func (r *Request) SetContext(ctx aws.Context) {
 
 // WillRetry returns if the request's can be retried.
 func (r *Request) WillRetry() bool {
+	if !aws.IsReaderSeekable(r.Body) && r.HTTPRequest.Body != NoBody {
+		return false
+	}
 	return r.Error != nil && aws.BoolValue(r.Retryable) && r.RetryCount < r.MaxRetries()
 }
 
@@ -255,6 +261,7 @@ func (r *Request) SetStringBody(s string) {
 // SetReaderBody will set the request's body reader.
 func (r *Request) SetReaderBody(reader io.ReadSeeker) {
 	r.Body = reader
+	r.BodyStart, _ = reader.Seek(0, sdkio.SeekCurrent) // Get the Bodies current offset.
 	r.ResetBody()
 }
 
@@ -292,6 +299,11 @@ func (r *Request) PresignRequest(expire time.Duration) (string, http.Header, err
 	return getPresignedURL(r, expire)
 }
 
+// IsPresigned returns true if the request represents a presigned API url.
+func (r *Request) IsPresigned() bool {
+	return r.ExpireTime != 0
+}
+
 func getPresignedURL(r *Request, expire time.Duration) (string, http.Header, error) {
 	if expire <= 0 {
 		return "", nil, awserr.New(
@@ -332,7 +344,7 @@ func debugLogReqError(r *Request, stage string, retrying bool, err error) {
 
 // Build will build the request's object so it can be signed and sent
 // to the service. Build will also validate all the request's parameters.
-// Anny additional build Handlers set on this request will be run
+// Any additional build Handlers set on this request will be run
 // in the order they were set.
 //
 // The request will only be built once. Multiple calls to build will have
@@ -358,9 +370,9 @@ func (r *Request) Build() error {
 	return r.Error
 }
 
-// Sign will sign the request returning error if errors are encountered.
+// Sign will sign the request, returning error if errors are encountered.
 //
-// Send will build the request prior to signing. All Sign Handlers will
+// Sign will build the request prior to signing. All Sign Handlers will
 // be executed in the order they were set.
 func (r *Request) Sign() error {
 	r.Build()
@@ -393,7 +405,7 @@ func (r *Request) getNextRequestBody() (io.ReadCloser, error) {
 	// of the SDK if they used that field.
 	//
 	// Related golang/go#18257
-	l, err := computeBodyLength(r.Body)
+	l, err := aws.SeekerLen(r.Body)
 	if err != nil {
 		return nil, awserr.New(ErrCodeSerialization, "failed to compute request body size", err)
 	}
@@ -411,7 +423,8 @@ func (r *Request) getNextRequestBody() (io.ReadCloser, error) {
 		// Transfer-Encoding: chunked bodies for these methods.
 		//
 		// This would only happen if a aws.ReaderSeekerCloser was used with
-		// a io.Reader that was not also an io.Seeker.
+		// a io.Reader that was not also an io.Seeker, or did not implement
+		// Len() method.
 		switch r.Operation.HTTPMethod {
 		case "GET", "HEAD", "DELETE":
 			body = NoBody
@@ -423,49 +436,13 @@ func (r *Request) getNextRequestBody() (io.ReadCloser, error) {
 	return body, nil
 }
 
-// Attempts to compute the length of the body of the reader using the
-// io.Seeker interface. If the value is not seekable because of being
-// a ReaderSeekerCloser without an unerlying Seeker -1 will be returned.
-// If no error occurs the length of the body will be returned.
-func computeBodyLength(r io.ReadSeeker) (int64, error) {
-	seekable := true
-	// Determine if the seeker is actually seekable. ReaderSeekerCloser
-	// hides the fact that a io.Readers might not actually be seekable.
-	switch v := r.(type) {
-	case aws.ReaderSeekerCloser:
-		seekable = v.IsSeeker()
-	case *aws.ReaderSeekerCloser:
-		seekable = v.IsSeeker()
-	}
-	if !seekable {
-		return -1, nil
-	}
-
-	curOffset, err := r.Seek(0, 1)
-	if err != nil {
-		return 0, err
-	}
-
-	endOffset, err := r.Seek(0, 2)
-	if err != nil {
-		return 0, err
-	}
-
-	_, err = r.Seek(curOffset, 0)
-	if err != nil {
-		return 0, err
-	}
-
-	return endOffset - curOffset, nil
-}
-
 // GetBody will return an io.ReadSeeker of the Request's underlying
 // input body with a concurrency safe wrapper.
 func (r *Request) GetBody() io.ReadSeeker {
 	return r.safeBody
 }
 
-// Send will send the request returning error if errors are encountered.
+// Send will send the request, returning error if errors are encountered.
 //
 // Send will sign the request prior to sending. All Send Handlers will
 // be executed in the order they were set.
@@ -486,6 +463,7 @@ func (r *Request) Send() error {
 	}()
 
 	for {
+		r.AttemptTime = time.Now()
 		if aws.BoolValue(r.Retryable) {
 			if r.Config.LogLevel.Matches(aws.LogDebugWithRequestRetries) {
 				r.Config.Logger.Log(fmt.Sprintf("DEBUG: Retrying Request %s/%s, attempt %d",

vendor/github.com/aws/aws-sdk-go/aws/request/request_1_7.go

@@ -21,7 +21,7 @@ func (noBody) WriteTo(io.Writer) (int64, error) { return 0, nil }
 var NoBody = noBody{}
 
 // ResetBody rewinds the request body back to its starting position, and
-// set's the HTTP Request body reference. When the body is read prior
+// sets the HTTP Request body reference. When the body is read prior
 // to being sent in the HTTP request it will need to be rewound.
 //
 // ResetBody will automatically be called by the SDK's build handler, but if

vendor/github.com/aws/aws-sdk-go/aws/request/request_1_8.go

@@ -11,7 +11,7 @@ import (
 var NoBody = http.NoBody
 
 // ResetBody rewinds the request body back to its starting position, and
-// set's the HTTP Request body reference. When the body is read prior
+// sets the HTTP Request body reference. When the body is read prior
 // to being sent in the HTTP request it will need to be rewound.
 //
 // ResetBody will automatically be called by the SDK's build handler, but if

vendor/github.com/aws/aws-sdk-go/aws/request/request_pagination.go

@@ -35,8 +35,12 @@ type Pagination struct {
 	// NewRequest should always be built from the same API operations. It is
 	// undefined if different API operations are returned on subsequent calls.
 	NewRequest func() (*Request, error)
+	// EndPageOnSameToken, when enabled, will allow the paginator to stop on
+	// token that are the same as its previous tokens.
+	EndPageOnSameToken bool
 
 	started    bool
+	prevTokens []interface{}
 	nextTokens []interface{}
 
 	err     error
@@ -49,7 +53,15 @@ type Pagination struct {
 //
 // Will always return true if Next has not been called yet.
 func (p *Pagination) HasNextPage() bool {
-	return !(p.started && len(p.nextTokens) == 0)
+	if !p.started {
+		return true
+	}
+
+	hasNextPage := len(p.nextTokens) != 0
+	if p.EndPageOnSameToken {
+		return hasNextPage && !awsutil.DeepEqual(p.nextTokens, p.prevTokens)
+	}
+	return hasNextPage
 }
 
 // Err returns the error Pagination encountered when retrieving the next page.
@@ -96,6 +108,7 @@ func (p *Pagination) Next() bool {
 		return false
 	}
 
+	p.prevTokens = p.nextTokens
 	p.nextTokens = req.nextPageTokens()
 	p.curPage = req.Data
 
@@ -142,13 +155,28 @@ func (r *Request) nextPageTokens() []interface{} {
 	tokens := []interface{}{}
 	tokenAdded := false
 	for _, outToken := range r.Operation.OutputTokens {
-		v, _ := awsutil.ValuesAtPath(r.Data, outToken)
-		if len(v) > 0 {
-			tokens = append(tokens, v[0])
-			tokenAdded = true
-		} else {
+		vs, _ := awsutil.ValuesAtPath(r.Data, outToken)
+		if len(vs) == 0 {
 			tokens = append(tokens, nil)
+			continue
 		}
+		v := vs[0]
+
+		switch tv := v.(type) {
+		case *string:
+			if len(aws.StringValue(tv)) == 0 {
+				tokens = append(tokens, nil)
+				continue
+			}
+		case string:
+			if len(tv) == 0 {
+				tokens = append(tokens, nil)
+				continue
+			}
+		}
+
+		tokenAdded = true
+		tokens = append(tokens, v)
 	}
 	if !tokenAdded {
 		return nil

vendor/github.com/aws/aws-sdk-go/aws/request/retryer.go

@@ -97,7 +97,7 @@ func isNestedErrorRetryable(parentErr awserr.Error) bool {
 	}
 
 	if t, ok := err.(temporaryError); ok {
-		return t.Temporary()
+		return t.Temporary() || isErrConnectionReset(err)
 	}
 
 	return isErrConnectionReset(err)

vendor/github.com/aws/aws-sdk-go/aws/session/doc.go

@@ -128,7 +128,7 @@ read. The Session will be created from configuration values from the shared
 credentials file (~/.aws/credentials) over those in the shared config file (~/.aws/config).
 
 Credentials are the values the SDK should use for authenticating requests with
-AWS Services. They arfrom a configuration file will need to include both
+AWS Services. They are from a configuration file will need to include both
 aws_access_key_id and aws_secret_access_key must be provided together in the
 same file to be considered valid. The values will be ignored if not a complete
 group. aws_session_token is an optional field that can be provided if both of

vendor/github.com/aws/aws-sdk-go/aws/session/env_config.go

@@ -5,6 +5,7 @@ import (
 	"strconv"
 
 	"github.com/aws/aws-sdk-go/aws/credentials"
+	"github.com/aws/aws-sdk-go/aws/defaults"
 )
 
 // EnvProviderName provides a name of the provider when config is loaded from environment.
@@ -95,9 +96,23 @@ type envConfig struct {
 	//
 	//  AWS_CA_BUNDLE=$HOME/my_custom_ca_bundle
 	CustomCABundle string
+
+	csmEnabled  string
+	CSMEnabled  bool
+	CSMPort     string
+	CSMClientID string
 }
 
 var (
+	csmEnabledEnvKey = []string{
+		"AWS_CSM_ENABLED",
+	}
+	csmPortEnvKey = []string{
+		"AWS_CSM_PORT",
+	}
+	csmClientIDEnvKey = []string{
+		"AWS_CSM_CLIENT_ID",
+	}
 	credAccessEnvKey = []string{
 		"AWS_ACCESS_KEY_ID",
 		"AWS_ACCESS_KEY",
@@ -156,6 +171,12 @@ func envConfigLoad(enableSharedConfig bool) envConfig {
 	setFromEnvVal(&cfg.Creds.SecretAccessKey, credSecretEnvKey)
 	setFromEnvVal(&cfg.Creds.SessionToken, credSessionEnvKey)
 
+	// CSM environment variables
+	setFromEnvVal(&cfg.csmEnabled, csmEnabledEnvKey)
+	setFromEnvVal(&cfg.CSMPort, csmPortEnvKey)
+	setFromEnvVal(&cfg.CSMClientID, csmClientIDEnvKey)
+	cfg.CSMEnabled = len(cfg.csmEnabled) > 0
+
 	// Require logical grouping of credentials
 	if len(cfg.Creds.AccessKeyID) == 0 || len(cfg.Creds.SecretAccessKey) == 0 {
 		cfg.Creds = credentials.Value{}
@@ -176,6 +197,13 @@ func envConfigLoad(enableSharedConfig bool) envConfig {
 	setFromEnvVal(&cfg.SharedCredentialsFile, sharedCredsFileEnvKey)
 	setFromEnvVal(&cfg.SharedConfigFile, sharedConfigFileEnvKey)
 
+	if len(cfg.SharedCredentialsFile) == 0 {
+		cfg.SharedCredentialsFile = defaults.SharedCredentialsFilename()
+	}
+	if len(cfg.SharedConfigFile) == 0 {
+		cfg.SharedConfigFile = defaults.SharedConfigFilename()
+	}
+
 	cfg.CustomCABundle = os.Getenv("AWS_CA_BUNDLE")
 
 	return cfg

vendor/github.com/aws/aws-sdk-go/aws/session/session.go

@@ -15,6 +15,7 @@ import (
 	"github.com/aws/aws-sdk-go/aws/corehandlers"
 	"github.com/aws/aws-sdk-go/aws/credentials"
 	"github.com/aws/aws-sdk-go/aws/credentials/stscreds"
+	"github.com/aws/aws-sdk-go/aws/csm"
 	"github.com/aws/aws-sdk-go/aws/defaults"
 	"github.com/aws/aws-sdk-go/aws/endpoints"
 	"github.com/aws/aws-sdk-go/aws/request"
@@ -26,7 +27,7 @@ import (
 // Sessions are safe to create service clients concurrently, but it is not safe
 // to mutate the Session concurrently.
 //
-// The Session satisfies the service client's client.ClientConfigProvider.
+// The Session satisfies the service client's client.ConfigProvider.
 type Session struct {
 	Config   *aws.Config
 	Handlers request.Handlers
@@ -58,7 +59,12 @@ func New(cfgs ...*aws.Config) *Session {
 	envCfg := loadEnvConfig()
 
 	if envCfg.EnableSharedConfig {
-		s, err := newSession(Options{}, envCfg, cfgs...)
+		var cfg aws.Config
+		cfg.MergeIn(cfgs...)
+		s, err := NewSessionWithOptions(Options{
+			Config:            cfg,
+			SharedConfigState: SharedConfigEnable,
+		})
 		if err != nil {
 			// Old session.New expected all errors to be discovered when
 			// a request is made, and would report the errors then. This
@@ -76,10 +82,16 @@ func New(cfgs ...*aws.Config) *Session {
 				r.Error = err
 			})
 		}
+
 		return s
 	}
 
-	return deprecatedNewSession(cfgs...)
+	s := deprecatedNewSession(cfgs...)
+	if envCfg.CSMEnabled {
+		enableCSM(&s.Handlers, envCfg.CSMClientID, envCfg.CSMPort, s.Config.Logger)
+	}
+
+	return s
 }
 
 // NewSession returns a new Session created from SDK defaults, config files,
@@ -243,13 +255,6 @@ func NewSessionWithOptions(opts Options) (*Session, error) {
 		envCfg.EnableSharedConfig = true
 	}
 
-	if len(envCfg.SharedCredentialsFile) == 0 {
-		envCfg.SharedCredentialsFile = defaults.SharedCredentialsFilename()
-	}
-	if len(envCfg.SharedConfigFile) == 0 {
-		envCfg.SharedConfigFile = defaults.SharedConfigFilename()
-	}
-
 	// Only use AWS_CA_BUNDLE if session option is not provided.
 	if len(envCfg.CustomCABundle) != 0 && opts.CustomCABundle == nil {
 		f, err := os.Open(envCfg.CustomCABundle)
@@ -302,10 +307,22 @@ func deprecatedNewSession(cfgs ...*aws.Config) *Session {
 	}
 
 	initHandlers(s)
-
 	return s
 }
 
+func enableCSM(handlers *request.Handlers, clientID string, port string, logger aws.Logger) {
+	logger.Log("Enabling CSM")
+	if len(port) == 0 {
+		port = csm.DefaultPort
+	}
+
+	r, err := csm.Start(clientID, "127.0.0.1:"+port)
+	if err != nil {
+		return
+	}
+	r.InjectHandlers(handlers)
+}
+
 func newSession(opts Options, envCfg envConfig, cfgs ...*aws.Config) (*Session, error) {
 	cfg := defaults.Config()
 	handlers := defaults.Handlers()
@@ -345,6 +362,9 @@ func newSession(opts Options, envCfg envConfig, cfgs ...*aws.Config) (*Session,
 	}
 
 	initHandlers(s)
+	if envCfg.CSMEnabled {
+		enableCSM(&s.Handlers, envCfg.CSMClientID, envCfg.CSMPort, s.Config.Logger)
+	}
 
 	// Setup HTTP client with custom cert bundle if enabled
 	if opts.CustomCABundle != nil {
@@ -577,6 +597,7 @@ func (s *Session) clientConfigWithErr(serviceName string, cfgs ...*aws.Config) (
 		Handlers:           s.Handlers,
 		Endpoint:           resolved.URL,
 		SigningRegion:      resolved.SigningRegion,
+		SigningNameDerived: resolved.SigningNameDerived,
 		SigningName:        resolved.SigningName,
 	}, err
 }
@@ -601,6 +622,7 @@ func (s *Session) ClientConfigNoResolveEndpoint(cfgs ...*aws.Config) client.Conf
 		Handlers:           s.Handlers,
 		Endpoint:           resolved.URL,
 		SigningRegion:      resolved.SigningRegion,
+		SigningNameDerived: resolved.SigningNameDerived,
 		SigningName:        resolved.SigningName,
 	}
 }

vendor/github.com/aws/aws-sdk-go/aws/signer/v4/v4.go

@@ -71,6 +71,7 @@ import (
 	"github.com/aws/aws-sdk-go/aws"
 	"github.com/aws/aws-sdk-go/aws/credentials"
 	"github.com/aws/aws-sdk-go/aws/request"
+	"github.com/aws/aws-sdk-go/internal/sdkio"
 	"github.com/aws/aws-sdk-go/private/protocol/rest"
 )
 
@@ -134,6 +135,7 @@ var requiredSignedHeaders = rules{
 			"X-Amz-Server-Side-Encryption-Customer-Key-Md5":               struct{}{},
 			"X-Amz-Storage-Class":                                         struct{}{},
 			"X-Amz-Website-Redirect-Location":                             struct{}{},
+			"X-Amz-Content-Sha256":                                        struct{}{},
 		},
 	},
 	patterns{"X-Amz-Meta-"},
@@ -341,7 +343,9 @@ func (v4 Signer) signWithBody(r *http.Request, body io.ReadSeeker, service, regi
 
 	ctx.sanitizeHostForHeader()
 	ctx.assignAmzQueryValues()
-	ctx.build(v4.DisableHeaderHoisting)
+	if err := ctx.build(v4.DisableHeaderHoisting); err != nil {
+		return nil, err
+	}
 
 	// If the request is not presigned the body should be attached to it. This
 	// prevents the confusion of wanting to send a signed request without
@@ -503,11 +507,13 @@ func (v4 *Signer) logSigningInfo(ctx *signingCtx) {
 	v4.Logger.Log(msg)
 }
 
-func (ctx *signingCtx) build(disableHeaderHoisting bool) {
+func (ctx *signingCtx) build(disableHeaderHoisting bool) error {
 	ctx.buildTime()             // no depends
 	ctx.buildCredentialString() // no depends
 
-	ctx.buildBodyDigest()
+	if err := ctx.buildBodyDigest(); err != nil {
+		return err
+	}
 
 	unsignedHeaders := ctx.Request.Header
 	if ctx.isPresign {
@@ -535,6 +541,8 @@ func (ctx *signingCtx) build(disableHeaderHoisting bool) {
 		}
 		ctx.Request.Header.Set("Authorization", strings.Join(parts, ", "))
 	}
+
+	return nil
 }
 
 func (ctx *signingCtx) buildTime() {
@@ -661,21 +669,34 @@ func (ctx *signingCtx) buildSignature() {
 	ctx.signature = hex.EncodeToString(signature)
 }
 
-func (ctx *signingCtx) buildBodyDigest() {
+func (ctx *signingCtx) buildBodyDigest() error {
 	hash := ctx.Request.Header.Get("X-Amz-Content-Sha256")
 	if hash == "" {
-		if ctx.unsignedPayload || (ctx.isPresign && ctx.ServiceName == "s3") {
+		includeSHA256Header := ctx.unsignedPayload ||
+			ctx.ServiceName == "s3" ||
+			ctx.ServiceName == "glacier"
+
+		s3Presign := ctx.isPresign && ctx.ServiceName == "s3"
+
+		if ctx.unsignedPayload || s3Presign {
 			hash = "UNSIGNED-PAYLOAD"
+			includeSHA256Header = !s3Presign
 		} else if ctx.Body == nil {
 			hash = emptyStringSHA256
 		} else {
+			if !aws.IsReaderSeekable(ctx.Body) {
+				return fmt.Errorf("cannot use unseekable request body %T, for signed request with body", ctx.Body)
+			}
 			hash = hex.EncodeToString(makeSha256Reader(ctx.Body))
 		}
-		if ctx.unsignedPayload || ctx.ServiceName == "s3" || ctx.ServiceName == "glacier" {
+
+		if includeSHA256Header {
 			ctx.Request.Header.Set("X-Amz-Content-Sha256", hash)
 		}
 	}
 	ctx.bodyDigest = hash
+
+	return nil
 }
 
 // isRequestSigned returns if the request is currently signed or presigned
@@ -715,8 +736,8 @@ func makeSha256(data []byte) []byte {
 
 func makeSha256Reader(reader io.ReadSeeker) []byte {
 	hash := sha256.New()
-	start, _ := reader.Seek(0, 1)
-	defer reader.Seek(start, 0)
+	start, _ := reader.Seek(0, sdkio.SeekCurrent)
+	defer reader.Seek(start, sdkio.SeekStart)
 
 	io.Copy(hash, reader)
 	return hash.Sum(nil)

vendor/github.com/aws/aws-sdk-go/aws/types.go

@@ -3,6 +3,8 @@ package aws
 import (
 	"io"
 	"sync"
+
+	"github.com/aws/aws-sdk-go/internal/sdkio"
 )
 
 // ReadSeekCloser wraps a io.Reader returning a ReaderSeekerCloser. Should
@@ -22,6 +24,22 @@ type ReaderSeekerCloser struct {
 	r io.Reader
 }
 
+// IsReaderSeekable returns if the underlying reader type can be seeked. A
+// io.Reader might not actually be seekable if it is the ReaderSeekerCloser
+// type.
+func IsReaderSeekable(r io.Reader) bool {
+	switch v := r.(type) {
+	case ReaderSeekerCloser:
+		return v.IsSeeker()
+	case *ReaderSeekerCloser:
+		return v.IsSeeker()
+	case io.ReadSeeker:
+		return true
+	default:
+		return false
+	}
+}
+
 // Read reads from the reader up to size of p. The number of bytes read, and
 // error if it occurred will be returned.
 //
@@ -56,6 +74,71 @@ func (r ReaderSeekerCloser) IsSeeker() bool {
 	return ok
 }
 
+// HasLen returns the length of the underlying reader if the value implements
+// the Len() int method.
+func (r ReaderSeekerCloser) HasLen() (int, bool) {
+	type lenner interface {
+		Len() int
+	}
+
+	if lr, ok := r.r.(lenner); ok {
+		return lr.Len(), true
+	}
+
+	return 0, false
+}
+
+// GetLen returns the length of the bytes remaining in the underlying reader.
+// Checks first for Len(), then io.Seeker to determine the size of the
+// underlying reader.
+//
+// Will return -1 if the length cannot be determined.
+func (r ReaderSeekerCloser) GetLen() (int64, error) {
+	if l, ok := r.HasLen(); ok {
+		return int64(l), nil
+	}
+
+	if s, ok := r.r.(io.Seeker); ok {
+		return seekerLen(s)
+	}
+
+	return -1, nil
+}
+
+// SeekerLen attempts to get the number of bytes remaining at the seeker's
+// current position.  Returns the number of bytes remaining or error.
+func SeekerLen(s io.Seeker) (int64, error) {
+	// Determine if the seeker is actually seekable. ReaderSeekerCloser
+	// hides the fact that a io.Readers might not actually be seekable.
+	switch v := s.(type) {
+	case ReaderSeekerCloser:
+		return v.GetLen()
+	case *ReaderSeekerCloser:
+		return v.GetLen()
+	}
+
+	return seekerLen(s)
+}
+
+func seekerLen(s io.Seeker) (int64, error) {
+	curOffset, err := s.Seek(0, sdkio.SeekCurrent)
+	if err != nil {
+		return 0, err
+	}
+
+	endOffset, err := s.Seek(0, sdkio.SeekEnd)
+	if err != nil {
+		return 0, err
+	}
+
+	_, err = s.Seek(curOffset, sdkio.SeekStart)
+	if err != nil {
+		return 0, err
+	}
+
+	return endOffset - curOffset, nil
+}
+
 // Close closes the ReaderSeekerCloser.
 //
 // If the ReaderSeekerCloser is not an io.Closer nothing will be done.

vendor/github.com/aws/aws-sdk-go/aws/version.go

@@ -5,4 +5,4 @@ package aws
 const SDKName = "aws-sdk-go"
 
 // SDKVersion is the version of this SDK
-const SDKVersion = "1.12.36"
+const SDKVersion = "1.15.11"

vendor/github.com/aws/aws-sdk-go/internal/sdkio/io_go1.6.go

@@ -0,0 +1,10 @@
+// +build !go1.7
+
+package sdkio
+
+// Copy of Go 1.7 io package's Seeker constants.
+const (
+	SeekStart   = 0 // seek relative to the origin of the file
+	SeekCurrent = 1 // seek relative to the current offset
+	SeekEnd     = 2 // seek relative to the end
+)

vendor/github.com/aws/aws-sdk-go/internal/sdkio/io_go1.7.go

@@ -0,0 +1,12 @@
+// +build go1.7
+
+package sdkio
+
+import "io"
+
+// Alias for Go 1.7 io package Seeker constants
+const (
+	SeekStart   = io.SeekStart   // seek relative to the origin of the file
+	SeekCurrent = io.SeekCurrent // seek relative to the current offset
+	SeekEnd     = io.SeekEnd     // seek relative to the end
+)

vendor/github.com/aws/aws-sdk-go/internal/sdkrand/locked_source.go

@@ -0,0 +1,29 @@
+package sdkrand
+
+import (
+	"math/rand"
+	"sync"
+	"time"
+)
+
+// lockedSource is a thread-safe implementation of rand.Source
+type lockedSource struct {
+	lk  sync.Mutex
+	src rand.Source
+}
+
+func (r *lockedSource) Int63() (n int64) {
+	r.lk.Lock()
+	n = r.src.Int63()
+	r.lk.Unlock()
+	return
+}
+
+func (r *lockedSource) Seed(seed int64) {
+	r.lk.Lock()
+	r.src.Seed(seed)
+	r.lk.Unlock()
+}
+
+// SeededRand is a new RNG using a thread safe implementation of rand.Source
+var SeededRand = rand.New(&lockedSource{src: rand.NewSource(time.Now().UnixNano())})

vendor/github.com/aws/aws-sdk-go/internal/sdkuri/path.go

@@ -0,0 +1,23 @@
+package sdkuri
+
+import (
+	"path"
+	"strings"
+)
+
+// PathJoin will join the elements of the path delimited by the "/"
+// character. Similar to path.Join with the exception the trailing "/"
+// character is preserved if present.
+func PathJoin(elems ...string) string {
+	if len(elems) == 0 {
+		return ""
+	}
+
+	hasTrailing := strings.HasSuffix(elems[len(elems)-1], "/")
+	str := path.Join(elems...)
+	if hasTrailing && str != "/" {
+		str += "/"
+	}
+
+	return str
+}

vendor/github.com/aws/aws-sdk-go/private/protocol/eventstream/debug.go

@@ -0,0 +1,144 @@
+package eventstream
+
+import (
+	"bytes"
+	"encoding/base64"
+	"encoding/json"
+	"fmt"
+	"strconv"
+)
+
+type decodedMessage struct {
+	rawMessage
+	Headers decodedHeaders `json:"headers"`
+}
+type jsonMessage struct {
+	Length     json.Number    `json:"total_length"`
+	HeadersLen json.Number    `json:"headers_length"`
+	PreludeCRC json.Number    `json:"prelude_crc"`
+	Headers    decodedHeaders `json:"headers"`
+	Payload    []byte         `json:"payload"`
+	CRC        json.Number    `json:"message_crc"`
+}
+
+func (d *decodedMessage) UnmarshalJSON(b []byte) (err error) {
+	var jsonMsg jsonMessage
+	if err = json.Unmarshal(b, &jsonMsg); err != nil {
+		return err
+	}
+
+	d.Length, err = numAsUint32(jsonMsg.Length)
+	if err != nil {
+		return err
+	}
+	d.HeadersLen, err = numAsUint32(jsonMsg.HeadersLen)
+	if err != nil {
+		return err
+	}
+	d.PreludeCRC, err = numAsUint32(jsonMsg.PreludeCRC)
+	if err != nil {
+		return err
+	}
+	d.Headers = jsonMsg.Headers
+	d.Payload = jsonMsg.Payload
+	d.CRC, err = numAsUint32(jsonMsg.CRC)
+	if err != nil {
+		return err
+	}
+
+	return nil
+}
+
+func (d *decodedMessage) MarshalJSON() ([]byte, error) {
+	jsonMsg := jsonMessage{
+		Length:     json.Number(strconv.Itoa(int(d.Length))),
+		HeadersLen: json.Number(strconv.Itoa(int(d.HeadersLen))),
+		PreludeCRC: json.Number(strconv.Itoa(int(d.PreludeCRC))),
+		Headers:    d.Headers,
+		Payload:    d.Payload,
+		CRC:        json.Number(strconv.Itoa(int(d.CRC))),
+	}
+
+	return json.Marshal(jsonMsg)
+}
+
+func numAsUint32(n json.Number) (uint32, error) {
+	v, err := n.Int64()
+	if err != nil {
+		return 0, fmt.Errorf("failed to get int64 json number, %v", err)
+	}
+
+	return uint32(v), nil
+}
+
+func (d decodedMessage) Message() Message {
+	return Message{
+		Headers: Headers(d.Headers),
+		Payload: d.Payload,
+	}
+}
+
+type decodedHeaders Headers
+
+func (hs *decodedHeaders) UnmarshalJSON(b []byte) error {
+	var jsonHeaders []struct {
+		Name  string      `json:"name"`
+		Type  valueType   `json:"type"`
+		Value interface{} `json:"value"`
+	}
+
+	decoder := json.NewDecoder(bytes.NewReader(b))
+	decoder.UseNumber()
+	if err := decoder.Decode(&jsonHeaders); err != nil {
+		return err
+	}
+
+	var headers Headers
+	for _, h := range jsonHeaders {
+		value, err := valueFromType(h.Type, h.Value)
+		if err != nil {
+			return err
+		}
+		headers.Set(h.Name, value)
+	}
+	(*hs) = decodedHeaders(headers)
+
+	return nil
+}
+
+func valueFromType(typ valueType, val interface{}) (Value, error) {
+	switch typ {
+	case trueValueType:
+		return BoolValue(true), nil
+	case falseValueType:
+		return BoolValue(false), nil
+	case int8ValueType:
+		v, err := val.(json.Number).Int64()
+		return Int8Value(int8(v)), err
+	case int16ValueType:
+		v, err := val.(json.Number).Int64()
+		return Int16Value(int16(v)), err
+	case int32ValueType:
+		v, err := val.(json.Number).Int64()
+		return Int32Value(int32(v)), err
+	case int64ValueType:
+		v, err := val.(json.Number).Int64()
+		return Int64Value(v), err
+	case bytesValueType:
+		v, err := base64.StdEncoding.DecodeString(val.(string))
+		return BytesValue(v), err
+	case stringValueType:
+		v, err := base64.StdEncoding.DecodeString(val.(string))
+		return StringValue(string(v)), err
+	case timestampValueType:
+		v, err := val.(json.Number).Int64()
+		return TimestampValue(timeFromEpochMilli(v)), err
+	case uuidValueType:
+		v, err := base64.StdEncoding.DecodeString(val.(string))
+		var tv UUIDValue
+		copy(tv[:], v)
+		return tv, err
+	default:
+		panic(fmt.Sprintf("unknown type, %s, %T", typ.String(), val))
+	}
+}

vendor/github.com/aws/aws-sdk-go/private/protocol/eventstream/decode.go

@@ -0,0 +1,199 @@
+package eventstream
+
+import (
+	"bytes"
+	"encoding/binary"
+	"encoding/hex"
+	"encoding/json"
+	"fmt"
+	"hash"
+	"hash/crc32"
+	"io"
+
+	"github.com/aws/aws-sdk-go/aws"
+)
+
+// Decoder provides decoding of an Event Stream messages.
+type Decoder struct {
+	r      io.Reader
+	logger aws.Logger
+}
+
+// NewDecoder initializes and returns a Decoder for decoding event
+// stream messages from the reader provided.
+func NewDecoder(r io.Reader) *Decoder {
+	return &Decoder{
+		r: r,
+	}
+}
+
+// Decode attempts to decode a single message from the event stream reader.
+// Will return the event stream message, or error if Decode fails to read
+// the message from the stream.
+func (d *Decoder) Decode(payloadBuf []byte) (m Message, err error) {
+	reader := d.r
+	if d.logger != nil {
+		debugMsgBuf := bytes.NewBuffer(nil)
+		reader = io.TeeReader(reader, debugMsgBuf)
+		defer func() {
+			logMessageDecode(d.logger, debugMsgBuf, m, err)
+		}()
+	}
+
+	crc := crc32.New(crc32IEEETable)
+	hashReader := io.TeeReader(reader, crc)
+
+	prelude, err := decodePrelude(hashReader, crc)
+	if err != nil {
+		return Message{}, err
+	}
+
+	if prelude.HeadersLen > 0 {
+		lr := io.LimitReader(hashReader, int64(prelude.HeadersLen))
+		m.Headers, err = decodeHeaders(lr)
+		if err != nil {
+			return Message{}, err
+		}
+	}
+
+	if payloadLen := prelude.PayloadLen(); payloadLen > 0 {
+		buf, err := decodePayload(payloadBuf, io.LimitReader(hashReader, int64(payloadLen)))
+		if err != nil {
+			return Message{}, err
+		}
+		m.Payload = buf
+	}
+
+	msgCRC := crc.Sum32()
+	if err := validateCRC(reader, msgCRC); err != nil {
+		return Message{}, err
+	}
+
+	return m, nil
+}
+
+// UseLogger specifies the Logger that that the decoder should use to log the
+// message decode to.
+func (d *Decoder) UseLogger(logger aws.Logger) {
+	d.logger = logger
+}
+
+func logMessageDecode(logger aws.Logger, msgBuf *bytes.Buffer, msg Message, decodeErr error) {
+	w := bytes.NewBuffer(nil)
+	defer func() { logger.Log(w.String()) }()
+
+	fmt.Fprintf(w, "Raw message:\n%s\n",
+		hex.Dump(msgBuf.Bytes()))
+
+	if decodeErr != nil {
+		fmt.Fprintf(w, "Decode error: %v\n", decodeErr)
+		return
+	}
+
+	rawMsg, err := msg.rawMessage()
+	if err != nil {
+		fmt.Fprintf(w, "failed to create raw message, %v\n", err)
+		return
+	}
+
+	decodedMsg := decodedMessage{
+		rawMessage: rawMsg,
+		Headers:    decodedHeaders(msg.Headers),
+	}
+
+	fmt.Fprintf(w, "Decoded message:\n")
+	encoder := json.NewEncoder(w)
+	if err := encoder.Encode(decodedMsg); err != nil {
+		fmt.Fprintf(w, "failed to generate decoded message, %v\n", err)
+	}
+}
+
+func decodePrelude(r io.Reader, crc hash.Hash32) (messagePrelude, error) {
+	var p messagePrelude
+
+	var err error
+	p.Length, err = decodeUint32(r)
+	if err != nil {
+		return messagePrelude{}, err
+	}
+
+	p.HeadersLen, err = decodeUint32(r)
+	if err != nil {
+		return messagePrelude{}, err
+	}
+
+	if err := p.ValidateLens(); err != nil {
+		return messagePrelude{}, err
+	}
+
+	preludeCRC := crc.Sum32()
+	if err := validateCRC(r, preludeCRC); err != nil {
+		return messagePrelude{}, err
+	}
+
+	p.PreludeCRC = preludeCRC
+
+	return p, nil
+}
+
+func decodePayload(buf []byte, r io.Reader) ([]byte, error) {
+	w := bytes.NewBuffer(buf[0:0])
+
+	_, err := io.Copy(w, r)
+	return w.Bytes(), err
+}
+
+func decodeUint8(r io.Reader) (uint8, error) {
+	type byteReader interface {
+		ReadByte() (byte, error)
+	}
+
+	if br, ok := r.(byteReader); ok {
+		v, err := br.ReadByte()
+		return uint8(v), err
+	}
+
+	var b [1]byte
+	_, err := io.ReadFull(r, b[:])
+	return uint8(b[0]), err
+}
+func decodeUint16(r io.Reader) (uint16, error) {
+	var b [2]byte
+	bs := b[:]
+	_, err := io.ReadFull(r, bs)
+	if err != nil {
+		return 0, err
+	}
+	return binary.BigEndian.Uint16(bs), nil
+}
+func decodeUint32(r io.Reader) (uint32, error) {
+	var b [4]byte
+	bs := b[:]
+	_, err := io.ReadFull(r, bs)
+	if err != nil {
+		return 0, err
+	}
+	return binary.BigEndian.Uint32(bs), nil
+}
+func decodeUint64(r io.Reader) (uint64, error) {
+	var b [8]byte
+	bs := b[:]
+	_, err := io.ReadFull(r, bs)
+	if err != nil {
+		return 0, err
+	}
+	return binary.BigEndian.Uint64(bs), nil
+}
+
+func validateCRC(r io.Reader, expect uint32) error {
+	msgCRC, err := decodeUint32(r)
+	if err != nil {
+		return err
+	}
+
+	if msgCRC != expect {
+		return ChecksumError{}
+	}
+
+	return nil
+}

vendor/github.com/aws/aws-sdk-go/private/protocol/eventstream/encode.go

@@ -0,0 +1,114 @@
+package eventstream
+
+import (
+	"bytes"
+	"encoding/binary"
+	"hash"
+	"hash/crc32"
+	"io"
+)
+
+// Encoder provides EventStream message encoding.
+type Encoder struct {
+	w io.Writer
+
+	headersBuf *bytes.Buffer
+}
+
+// NewEncoder initializes and returns an Encoder to encode Event Stream
+// messages to an io.Writer.
+func NewEncoder(w io.Writer) *Encoder {
+	return &Encoder{
+		w:          w,
+		headersBuf: bytes.NewBuffer(nil),
+	}
+}
+
+// Encode encodes a single EventStream message to the io.Writer the Encoder
+// was created with. An error is returned if writing the message fails.
+func (e *Encoder) Encode(msg Message) error {
+	e.headersBuf.Reset()
+
+	err := encodeHeaders(e.headersBuf, msg.Headers)
+	if err != nil {
+		return err
+	}
+
+	crc := crc32.New(crc32IEEETable)
+	hashWriter := io.MultiWriter(e.w, crc)
+
+	headersLen := uint32(e.headersBuf.Len())
+	payloadLen := uint32(len(msg.Payload))
+
+	if err := encodePrelude(hashWriter, crc, headersLen, payloadLen); err != nil {
+		return err
+	}
+
+	if headersLen > 0 {
+		if _, err := io.Copy(hashWriter, e.headersBuf); err != nil {
+			return err
+		}
+	}
+
+	if payloadLen > 0 {
+		if _, err := hashWriter.Write(msg.Payload); err != nil {
+			return err
+		}
+	}
+
+	msgCRC := crc.Sum32()
+	return binary.Write(e.w, binary.BigEndian, msgCRC)
+}
+
+func encodePrelude(w io.Writer, crc hash.Hash32, headersLen, payloadLen uint32) error {
+	p := messagePrelude{
+		Length:     minMsgLen + headersLen + payloadLen,
+		HeadersLen: headersLen,
+	}
+	if err := p.ValidateLens(); err != nil {
+		return err
+	}
+
+	err := binaryWriteFields(w, binary.BigEndian,
+		p.Length,
+		p.HeadersLen,
+	)
+	if err != nil {
+		return err
+	}
+
+	p.PreludeCRC = crc.Sum32()
+	err = binary.Write(w, binary.BigEndian, p.PreludeCRC)
+	if err != nil {
+		return err
+	}
+
+	return nil
+}
+
+func encodeHeaders(w io.Writer, headers Headers) error {
+	for _, h := range headers {
+		hn := headerName{
+			Len: uint8(len(h.Name)),
+		}
+		copy(hn.Name[:hn.Len], h.Name)
+		if err := hn.encode(w); err != nil {
+			return err
+		}
+
+		if err := h.Value.encode(w); err != nil {
+			return err
+		}
+	}
+
+	return nil
+}
+
+func binaryWriteFields(w io.Writer, order binary.ByteOrder, vs ...interface{}) error {
+	for _, v := range vs {
+		if err := binary.Write(w, order, v); err != nil {
+			return err
+		}
+	}
+	return nil
+}

vendor/github.com/aws/aws-sdk-go/private/protocol/eventstream/error.go

@@ -0,0 +1,23 @@
+package eventstream
+
+import "fmt"
+
+// LengthError provides the error for items being larger than a maximum length.
+type LengthError struct {
+	Part  string
+	Want  int
+	Have  int
+	Value interface{}
+}
+
+func (e LengthError) Error() string {
+	return fmt.Sprintf("%s length invalid, %d/%d, %v",
+		e.Part, e.Want, e.Have, e.Value)
+}
+
+// ChecksumError provides the error for message checksum invalidation errors.
+type ChecksumError struct{}
+
+func (e ChecksumError) Error() string {
+	return "message checksum mismatch"
+}

vendor/github.com/aws/aws-sdk-go/private/protocol/eventstream/eventstreamapi/api.go

@@ -0,0 +1,196 @@
+package eventstreamapi
+
+import (
+	"fmt"
+	"io"
+
+	"github.com/aws/aws-sdk-go/aws"
+	"github.com/aws/aws-sdk-go/private/protocol"
+	"github.com/aws/aws-sdk-go/private/protocol/eventstream"
+)
+
+// Unmarshaler provides the interface for unmarshaling a EventStream
+// message into a SDK type.
+type Unmarshaler interface {
+	UnmarshalEvent(protocol.PayloadUnmarshaler, eventstream.Message) error
+}
+
+// EventStream headers with specific meaning to async API functionality.
+const (
+	MessageTypeHeader    = `:message-type` // Identifies type of message.
+	EventMessageType     = `event`
+	ErrorMessageType     = `error`
+	ExceptionMessageType = `exception`
+
+	// Message Events
+	EventTypeHeader = `:event-type` // Identifies message event type e.g. "Stats".
+
+	// Message Error
+	ErrorCodeHeader    = `:error-code`
+	ErrorMessageHeader = `:error-message`
+
+	// Message Exception
+	ExceptionTypeHeader = `:exception-type`
+)
+
+// EventReader provides reading from the EventStream of an reader.
+type EventReader struct {
+	reader  io.ReadCloser
+	decoder *eventstream.Decoder
+
+	unmarshalerForEventType func(string) (Unmarshaler, error)
+	payloadUnmarshaler      protocol.PayloadUnmarshaler
+
+	payloadBuf []byte
+}
+
+// NewEventReader returns a EventReader built from the reader and unmarshaler
+// provided.  Use ReadStream method to start reading from the EventStream.
+func NewEventReader(
+	reader io.ReadCloser,
+	payloadUnmarshaler protocol.PayloadUnmarshaler,
+	unmarshalerForEventType func(string) (Unmarshaler, error),
+) *EventReader {
+	return &EventReader{
+		reader:                  reader,
+		decoder:                 eventstream.NewDecoder(reader),
+		payloadUnmarshaler:      payloadUnmarshaler,
+		unmarshalerForEventType: unmarshalerForEventType,
+		payloadBuf:              make([]byte, 10*1024),
+	}
+}
+
+// UseLogger instructs the EventReader to use the logger and log level
+// specified.
+func (r *EventReader) UseLogger(logger aws.Logger, logLevel aws.LogLevelType) {
+	if logger != nil && logLevel.Matches(aws.LogDebugWithEventStreamBody) {
+		r.decoder.UseLogger(logger)
+	}
+}
+
+// ReadEvent attempts to read a message from the EventStream and return the
+// unmarshaled event value that the message is for.
+//
+// For EventStream API errors check if the returned error satisfies the
+// awserr.Error interface to get the error's Code and Message components.
+//
+// EventUnmarshalers called with EventStream messages must take copies of the
+// message's Payload. The payload will is reused between events read.
+func (r *EventReader) ReadEvent() (event interface{}, err error) {
+	msg, err := r.decoder.Decode(r.payloadBuf)
+	if err != nil {
+		return nil, err
+	}
+	defer func() {
+		// Reclaim payload buffer for next message read.
+		r.payloadBuf = msg.Payload[0:0]
+	}()
+
+	typ, err := GetHeaderString(msg, MessageTypeHeader)
+	if err != nil {
+		return nil, err
+	}
+
+	switch typ {
+	case EventMessageType:
+		return r.unmarshalEventMessage(msg)
+	case ExceptionMessageType:
+		err = r.unmarshalEventException(msg)
+		return nil, err
+	case ErrorMessageType:
+		return nil, r.unmarshalErrorMessage(msg)
+	default:
+		return nil, fmt.Errorf("unknown eventstream message type, %v", typ)
+	}
+}
+
+func (r *EventReader) unmarshalEventMessage(
+	msg eventstream.Message,
+) (event interface{}, err error) {
+	eventType, err := GetHeaderString(msg, EventTypeHeader)
+	if err != nil {
+		return nil, err
+	}
+
+	ev, err := r.unmarshalerForEventType(eventType)
+	if err != nil {
+		return nil, err
+	}
+
+	err = ev.UnmarshalEvent(r.payloadUnmarshaler, msg)
+	if err != nil {
+		return nil, err
+	}
+
+	return ev, nil
+}
+
+func (r *EventReader) unmarshalEventException(
+	msg eventstream.Message,
+) (err error) {
+	eventType, err := GetHeaderString(msg, ExceptionTypeHeader)
+	if err != nil {
+		return err
+	}
+
+	ev, err := r.unmarshalerForEventType(eventType)
+	if err != nil {
+		return err
+	}
+
+	err = ev.UnmarshalEvent(r.payloadUnmarshaler, msg)
+	if err != nil {
+		return err
+	}
+
+	var ok bool
+	err, ok = ev.(error)
+	if !ok {
+		err = messageError{
+			code: "SerializationError",
+			msg: fmt.Sprintf(
+				"event stream exception %s mapped to non-error %T, %v",
+				eventType, ev, ev,
+			),
+		}
+	}
+
+	return err
+}
+
+func (r *EventReader) unmarshalErrorMessage(msg eventstream.Message) (err error) {
+	var msgErr messageError
+
+	msgErr.code, err = GetHeaderString(msg, ErrorCodeHeader)
+	if err != nil {
+		return err
+	}
+
+	msgErr.msg, err = GetHeaderString(msg, ErrorMessageHeader)
+	if err != nil {
+		return err
+	}
+
+	return msgErr
+}
+
+// Close closes the EventReader's EventStream reader.
+func (r *EventReader) Close() error {
+	return r.reader.Close()
+}
+
+// GetHeaderString returns the value of the header as a string. If the header
+// is not set or the value is not a string an error will be returned.
+func GetHeaderString(msg eventstream.Message, headerName string) (string, error) {
+	headerVal := msg.Headers.Get(headerName)
+	if headerVal == nil {
+		return "", fmt.Errorf("error header %s not present", headerName)
+	}
+
+	v, ok := headerVal.Get().(string)
+	if !ok {
+		return "", fmt.Errorf("error header value is not a string, %T", headerVal)
+	}
+
+	return v, nil
+}

vendor/github.com/aws/aws-sdk-go/private/protocol/eventstream/eventstreamapi/error.go

@@ -0,0 +1,24 @@
+package eventstreamapi
+
+import "fmt"
+
+type messageError struct {
+	code string
+	msg  string
+}
+
+func (e messageError) Code() string {
+	return e.code
+}
+
+func (e messageError) Message() string {
+	return e.msg
+}
+
+func (e messageError) Error() string {
+	return fmt.Sprintf("%s: %s", e.code, e.msg)
+}
+
+func (e messageError) OrigErr() error {
+	return nil
+}

vendor/github.com/aws/aws-sdk-go/private/protocol/eventstream/header.go

@@ -0,0 +1,166 @@
+package eventstream
+
+import (
+	"encoding/binary"
+	"fmt"
+	"io"
+)
+
+// Headers are a collection of EventStream header values.
+type Headers []Header
+
+// Header is a single EventStream Key Value header pair.
+type Header struct {
+	Name  string
+	Value Value
+}
+
+// Set associates the name with a value. If the header name already exists in
+// the Headers the value will be replaced with the new one.
+func (hs *Headers) Set(name string, value Value) {
+	var i int
+	for ; i < len(*hs); i++ {
+		if (*hs)[i].Name == name {
+			(*hs)[i].Value = value
+			return
+		}
+	}
+
+	*hs = append(*hs, Header{
+		Name: name, Value: value,
+	})
+}
+
+// Get returns the Value associated with the header. Nil is returned if the
+// value does not exist.
+func (hs Headers) Get(name string) Value {
+	for i := 0; i < len(hs); i++ {
+		if h := hs[i]; h.Name == name {
+			return h.Value
+		}
+	}
+	return nil
+}
+
+// Del deletes the value in the Headers if it exists.
+func (hs *Headers) Del(name string) {
+	for i := 0; i < len(*hs); i++ {
+		if (*hs)[i].Name == name {
+			copy((*hs)[i:], (*hs)[i+1:])
+			(*hs) = (*hs)[:len(*hs)-1]
+		}
+	}
+}
+
+func decodeHeaders(r io.Reader) (Headers, error) {
+	hs := Headers{}
+
+	for {
+		name, err := decodeHeaderName(r)
+		if err != nil {
+			if err == io.EOF {
+				// EOF while getting header name means no more headers
+				break
+			}
+			return nil, err
+		}
+
+		value, err := decodeHeaderValue(r)
+		if err != nil {
+			return nil, err
+		}
+
+		hs.Set(name, value)
+	}
+
+	return hs, nil
+}
+
+func decodeHeaderName(r io.Reader) (string, error) {
+	var n headerName
+
+	var err error
+	n.Len, err = decodeUint8(r)
+	if err != nil {
+		return "", err
+	}
+
+	name := n.Name[:n.Len]
+	if _, err := io.ReadFull(r, name); err != nil {
+		return "", err
+	}
+
+	return string(name), nil
+}
+
+func decodeHeaderValue(r io.Reader) (Value, error) {
+	var raw rawValue
+
+	typ, err := decodeUint8(r)
+	if err != nil {
+		return nil, err
+	}
+	raw.Type = valueType(typ)
+
+	var v Value
+
+	switch raw.Type {
+	case trueValueType:
+		v = BoolValue(true)
+	case falseValueType:
+		v = BoolValue(false)
+	case int8ValueType:
+		var tv Int8Value
+		err = tv.decode(r)
+		v = tv
+	case int16ValueType:
+		var tv Int16Value
+		err = tv.decode(r)
+		v = tv
+	case int32ValueType:
+		var tv Int32Value
+		err = tv.decode(r)
+		v = tv
+	case int64ValueType:
+		var tv Int64Value
+		err = tv.decode(r)
+		v = tv
+	case bytesValueType:
+		var tv BytesValue
+		err = tv.decode(r)
+		v = tv
+	case stringValueType:
+		var tv StringValue
+		err = tv.decode(r)
+		v = tv
+	case timestampValueType:
+		var tv TimestampValue
+		err = tv.decode(r)
+		v = tv
+	case uuidValueType:
+		var tv UUIDValue
+		err = tv.decode(r)
+		v = tv
+	default:
+		panic(fmt.Sprintf("unknown value type %d", raw.Type))
+	}
+
+	// Error could be EOF, let caller deal with it
+	return v, err
+}
+
+const maxHeaderNameLen = 255
+
+type headerName struct {
+	Len  uint8
+	Name [maxHeaderNameLen]byte
+}
+
+func (v headerName) encode(w io.Writer) error {
+	if err := binary.Write(w, binary.BigEndian, v.Len); err != nil {
+		return err
+	}
+
+	_, err := w.Write(v.Name[:v.Len])
+	return err
+}

vendor/github.com/aws/aws-sdk-go/private/protocol/eventstream/header_value.go

@@ -0,0 +1,501 @@
+package eventstream
+
+import (
+	"encoding/base64"
+	"encoding/binary"
+	"fmt"
+	"io"
+	"strconv"
+	"time"
+)
+
+const maxHeaderValueLen = 1<<15 - 1 // 2^15-1 or 32KB - 1
+
+// valueType is the EventStream header value type.
+type valueType uint8
+
+// Header value types
+const (
+	trueValueType valueType = iota
+	falseValueType
+	int8ValueType  // Byte
+	int16ValueType // Short
+	int32ValueType // Integer
+	int64ValueType // Long
+	bytesValueType
+	stringValueType
+	timestampValueType
+	uuidValueType
+)
+
+func (t valueType) String() string {
+	switch t {
+	case trueValueType:
+		return "bool"
+	case falseValueType:
+		return "bool"
+	case int8ValueType:
+		return "int8"
+	case int16ValueType:
+		return "int16"
+	case int32ValueType:
+		return "int32"
+	case int64ValueType:
+		return "int64"
+	case bytesValueType:
+		return "byte_array"
+	case stringValueType:
+		return "string"
+	case timestampValueType:
+		return "timestamp"
+	case uuidValueType:
+		return "uuid"
+	default:
+		return fmt.Sprintf("unknown value type %d", uint8(t))
+	}
+}
+
+type rawValue struct {
+	Type  valueType
+	Len   uint16 // Only set for variable length slices
+	Value []byte // byte representation of value, BigEndian encoding.
+}
+
+func (r rawValue) encodeScalar(w io.Writer, v interface{}) error {
+	return binaryWriteFields(w, binary.BigEndian,
+		r.Type,
+		v,
+	)
+}
+
+func (r rawValue) encodeFixedSlice(w io.Writer, v []byte) error {
+	binary.Write(w, binary.BigEndian, r.Type)
+
+	_, err := w.Write(v)
+	return err
+}
+
+func (r rawValue) encodeBytes(w io.Writer, v []byte) error {
+	if len(v) > maxHeaderValueLen {
+		return LengthError{
+			Part: "header value",
+			Want: maxHeaderValueLen, Have: len(v),
+			Value: v,
+		}
+	}
+	r.Len = uint16(len(v))
+
+	err := binaryWriteFields(w, binary.BigEndian,
+		r.Type,
+		r.Len,
+	)
+	if err != nil {
+		return err
+	}
+
+	_, err = w.Write(v)
+	return err
+}
+
+func (r rawValue) encodeString(w io.Writer, v string) error {
+	if len(v) > maxHeaderValueLen {
+		return LengthError{
+			Part: "header value",
+			Want: maxHeaderValueLen, Have: len(v),
+			Value: v,
+		}
+	}
+	r.Len = uint16(len(v))
+
+	type stringWriter interface {
+		WriteString(string) (int, error)
+	}
+
+	err := binaryWriteFields(w, binary.BigEndian,
+		r.Type,
+		r.Len,
+	)
+	if err != nil {
+		return err
+	}
+
+	if sw, ok := w.(stringWriter); ok {
+		_, err = sw.WriteString(v)
+	} else {
+		_, err = w.Write([]byte(v))
+	}
+
+	return err
+}
+
+func decodeFixedBytesValue(r io.Reader, buf []byte) error {
+	_, err := io.ReadFull(r, buf)
+	return err
+}
+
+func decodeBytesValue(r io.Reader) ([]byte, error) {
+	var raw rawValue
+	var err error
+	raw.Len, err = decodeUint16(r)
+	if err != nil {
+		return nil, err
+	}
+
+	buf := make([]byte, raw.Len)
+	_, err = io.ReadFull(r, buf)
+	if err != nil {
+		return nil, err
+	}
+
+	return buf, nil
+}
+
+func decodeStringValue(r io.Reader) (string, error) {
+	v, err := decodeBytesValue(r)
+	return string(v), err
+}
+
+// Value represents the abstract header value.
+type Value interface {
+	Get() interface{}
+	String() string
+	valueType() valueType
+	encode(io.Writer) error
+}
+
+// An BoolValue provides eventstream encoding, and representation
+// of a Go bool value.
+type BoolValue bool
+
+// Get returns the underlying type
+func (v BoolValue) Get() interface{} {
+	return bool(v)
+}
+
+// valueType returns the EventStream header value type value.
+func (v BoolValue) valueType() valueType {
+	if v {
+		return trueValueType
+	}
+	return falseValueType
+}
+
+func (v BoolValue) String() string {
+	return strconv.FormatBool(bool(v))
+}
+
+// encode encodes the BoolValue into an eventstream binary value
+// representation.
+func (v BoolValue) encode(w io.Writer) error {
+	return binary.Write(w, binary.BigEndian, v.valueType())
+}
+
+// An Int8Value provides eventstream encoding, and representation of a Go
+// int8 value.
+type Int8Value int8
+
+// Get returns the underlying value.
+func (v Int8Value) Get() interface{} {
+	return int8(v)
+}
+
+// valueType returns the EventStream header value type value.
+func (Int8Value) valueType() valueType {
+	return int8ValueType
+}
+
+func (v Int8Value) String() string {
+	return fmt.Sprintf("0x%02x", int8(v))
+}
+
+// encode encodes the Int8Value into an eventstream binary value
+// representation.
+func (v Int8Value) encode(w io.Writer) error {
+	raw := rawValue{
+		Type: v.valueType(),
+	}
+
+	return raw.encodeScalar(w, v)
+}
+
+func (v *Int8Value) decode(r io.Reader) error {
+	n, err := decodeUint8(r)
+	if err != nil {
+		return err
+	}
+
+	*v = Int8Value(n)
+	return nil
+}
+
+// An Int16Value provides eventstream encoding, and representation of a Go
+// int16 value.
+type Int16Value int16
+
+// Get returns the underlying value.
+func (v Int16Value) Get() interface{} {
+	return int16(v)
+}
+
+// valueType returns the EventStream header value type value.
+func (Int16Value) valueType() valueType {
+	return int16ValueType
+}
+
+func (v Int16Value) String() string {
+	return fmt.Sprintf("0x%04x", int16(v))
+}
+
+// encode encodes the Int16Value into an eventstream binary value
+// representation.
+func (v Int16Value) encode(w io.Writer) error {
+	raw := rawValue{
+		Type: v.valueType(),
+	}
+	return raw.encodeScalar(w, v)
+}
+
+func (v *Int16Value) decode(r io.Reader) error {
+	n, err := decodeUint16(r)
+	if err != nil {
+		return err
+	}
+
+	*v = Int16Value(n)
+	return nil
+}
+
+// An Int32Value provides eventstream encoding, and representation of a Go
+// int32 value.
+type Int32Value int32
+
+// Get returns the underlying value.
+func (v Int32Value) Get() interface{} {
+	return int32(v)
+}
+
+// valueType returns the EventStream header value type value.
+func (Int32Value) valueType() valueType {
+	return int32ValueType
+}
+
+func (v Int32Value) String() string {
+	return fmt.Sprintf("0x%08x", int32(v))
+}
+
+// encode encodes the Int32Value into an eventstream binary value
+// representation.
+func (v Int32Value) encode(w io.Writer) error {
+	raw := rawValue{
+		Type: v.valueType(),
+	}
+	return raw.encodeScalar(w, v)
+}
+
+func (v *Int32Value) decode(r io.Reader) error {
+	n, err := decodeUint32(r)
+	if err != nil {
+		return err
+	}
+
+	*v = Int32Value(n)
+	return nil
+}
+
+// An Int64Value provides eventstream encoding, and representation of a Go
+// int64 value.
+type Int64Value int64
+
+// Get returns the underlying value.
+func (v Int64Value) Get() interface{} {
+	return int64(v)
+}
+
+// valueType returns the EventStream header value type value.
+func (Int64Value) valueType() valueType {
+	return int64ValueType
+}
+
+func (v Int64Value) String() string {
+	return fmt.Sprintf("0x%016x", int64(v))
+}
+
+// encode encodes the Int64Value into an eventstream binary value
+// representation.
+func (v Int64Value) encode(w io.Writer) error {
+	raw := rawValue{
+		Type: v.valueType(),
+	}
+	return raw.encodeScalar(w, v)
+}
+
+func (v *Int64Value) decode(r io.Reader) error {
+	n, err := decodeUint64(r)
+	if err != nil {
+		return err
+	}
+
+	*v = Int64Value(n)
+	return nil
+}
+
+// An BytesValue provides eventstream encoding, and representation of a Go
+// byte slice.
+type BytesValue []byte
+
+// Get returns the underlying value.
+func (v BytesValue) Get() interface{} {
+	return []byte(v)
+}
+
+// valueType returns the EventStream header value type value.
+func (BytesValue) valueType() valueType {
+	return bytesValueType
+}
+
+func (v BytesValue) String() string {
+	return base64.StdEncoding.EncodeToString([]byte(v))
+}
+
+// encode encodes the BytesValue into an eventstream binary value
+// representation.
+func (v BytesValue) encode(w io.Writer) error {
+	raw := rawValue{
+		Type: v.valueType(),
+	}
+
+	return raw.encodeBytes(w, []byte(v))
+}
+
+func (v *BytesValue) decode(r io.Reader) error {
+	buf, err := decodeBytesValue(r)
+	if err != nil {
+		return err
+	}
+
+	*v = BytesValue(buf)
+	return nil
+}
+
+// An StringValue provides eventstream encoding, and representation of a Go
+// string.
+type StringValue string
+
+// Get returns the underlying value.
+func (v StringValue) Get() interface{} {
+	return string(v)
+}
+
+// valueType returns the EventStream header value type value.
+func (StringValue) valueType() valueType {
+	return stringValueType
+}
+
+func (v StringValue) String() string {
+	return string(v)
+}
+
+// encode encodes the StringValue into an eventstream binary value
+// representation.
+func (v StringValue) encode(w io.Writer) error {
+	raw := rawValue{
+		Type: v.valueType(),
+	}
+
+	return raw.encodeString(w, string(v))
+}
+
+func (v *StringValue) decode(r io.Reader) error {
+	s, err := decodeStringValue(r)
+	if err != nil {
+		return err
+	}
+
+	*v = StringValue(s)
+	return nil
+}
+
+// An TimestampValue provides eventstream encoding, and representation of a Go
+// timestamp.
+type TimestampValue time.Time
+
+// Get returns the underlying value.
+func (v TimestampValue) Get() interface{} {
+	return time.Time(v)
+}
+
+// valueType returns the EventStream header value type value.
+func (TimestampValue) valueType() valueType {
+	return timestampValueType
+}
+
+func (v TimestampValue) epochMilli() int64 {
+	nano := time.Time(v).UnixNano()
+	msec := nano / int64(time.Millisecond)
+	return msec
+}
+
+func (v TimestampValue) String() string {
+	msec := v.epochMilli()
+	return strconv.FormatInt(msec, 10)
+}
+
+// encode encodes the TimestampValue into an eventstream binary value
+// representation.
+func (v TimestampValue) encode(w io.Writer) error {
+	raw := rawValue{
+		Type: v.valueType(),
+	}
+
+	msec := v.epochMilli()
+	return raw.encodeScalar(w, msec)
+}
+
+func (v *TimestampValue) decode(r io.Reader) error {
+	n, err := decodeUint64(r)
+	if err != nil {
+		return err
+	}
+
+	*v = TimestampValue(timeFromEpochMilli(int64(n)))
+	return nil
+}
+
+func timeFromEpochMilli(t int64) time.Time {
+	secs := t / 1e3
+	msec := t % 1e3
+	return time.Unix(secs, msec*int64(time.Millisecond)).UTC()
+}
+
+// An UUIDValue provides eventstream encoding, and representation of a UUID
+// value.
+type UUIDValue [16]byte
+
+// Get returns the underlying value.
+func (v UUIDValue) Get() interface{} {
+	return v[:]
+}
+
+// valueType returns the EventStream header value type value.
+func (UUIDValue) valueType() valueType {
+	return uuidValueType
+}
+
+func (v UUIDValue) String() string {
+	return fmt.Sprintf(`%X-%X-%X-%X-%X`, v[0:4], v[4:6], v[6:8], v[8:10], v[10:])
+}
+
+// encode encodes the UUIDValue into an eventstream binary value
+// representation.
+func (v UUIDValue) encode(w io.Writer) error {
+	raw := rawValue{
+		Type: v.valueType(),
+	}
+
+	return raw.encodeFixedSlice(w, v[:])
+}
+
+func (v *UUIDValue) decode(r io.Reader) error {
+	tv := (*v)[:]
+	return decodeFixedBytesValue(r, tv)
+}

vendor/github.com/aws/aws-sdk-go/private/protocol/eventstream/message.go

@@ -0,0 +1,103 @@
+package eventstream
+
+import (
+	"bytes"
+	"encoding/binary"
+	"hash/crc32"
+)
+
+const preludeLen = 8
+const preludeCRCLen = 4
+const msgCRCLen = 4
+const minMsgLen = preludeLen + preludeCRCLen + msgCRCLen
+const maxPayloadLen = 1024 * 1024 * 16 // 16MB
+const maxHeadersLen = 1024 * 128       // 128KB
+const maxMsgLen = minMsgLen + maxHeadersLen + maxPayloadLen
+
+var crc32IEEETable = crc32.MakeTable(crc32.IEEE)
+
+// A Message provides the eventstream message representation.
+type Message struct {
+	Headers Headers
+	Payload []byte
+}
+
+func (m *Message) rawMessage() (rawMessage, error) {
+	var raw rawMessage
+
+	if len(m.Headers) > 0 {
+		var headers bytes.Buffer
+		if err := encodeHeaders(&headers, m.Headers); err != nil {
+			return rawMessage{}, err
+		}
+		raw.Headers = headers.Bytes()
+		raw.HeadersLen = uint32(len(raw.Headers))
+	}
+
+	raw.Length = raw.HeadersLen + uint32(len(m.Payload)) + minMsgLen
+
+	hash := crc32.New(crc32IEEETable)
+	binaryWriteFields(hash, binary.BigEndian, raw.Length, raw.HeadersLen)
+	raw.PreludeCRC = hash.Sum32()
+
+	binaryWriteFields(hash, binary.BigEndian, raw.PreludeCRC)
+
+	if raw.HeadersLen > 0 {
+		hash.Write(raw.Headers)
+	}
+
+	// Read payload bytes and update hash for it as well.
+	if len(m.Payload) > 0 {
+		raw.Payload = m.Payload
+		hash.Write(raw.Payload)
+	}
+
+	raw.CRC = hash.Sum32()
+
+	return raw, nil
+}
+
+type messagePrelude struct {
+	Length     uint32
+	HeadersLen uint32
+	PreludeCRC uint32
+}
+
+func (p messagePrelude) PayloadLen() uint32 {
+	return p.Length - p.HeadersLen - minMsgLen
+}
+
+func (p messagePrelude) ValidateLens() error {
+	if p.Length == 0 || p.Length > maxMsgLen {
+		return LengthError{
+			Part: "message prelude",
+			Want: maxMsgLen,
+			Have: int(p.Length),
+		}
+	}
+	if p.HeadersLen > maxHeadersLen {
+		return LengthError{
+			Part: "message headers",
+			Want: maxHeadersLen,
+			Have: int(p.HeadersLen),
+		}
+	}
+	if payloadLen := p.PayloadLen(); payloadLen > maxPayloadLen {
+		return LengthError{
+			Part: "message payload",
+			Want: maxPayloadLen,
+			Have: int(payloadLen),
+		}
+	}
+
+	return nil
+}
+
+type rawMessage struct {
+	messagePrelude
+
+	Headers []byte
+	Payload []byte
+
+	CRC uint32
+}

vendor/github.com/aws/aws-sdk-go/private/protocol/payload.go

@@ -0,0 +1,81 @@
+package protocol
+
+import (
+	"io"
+	"io/ioutil"
+	"net/http"
+
+	"github.com/aws/aws-sdk-go/aws"
+	"github.com/aws/aws-sdk-go/aws/client/metadata"
+	"github.com/aws/aws-sdk-go/aws/request"
+)
+
+// PayloadUnmarshaler provides the interface for unmarshaling a payload's
+// reader into a SDK shape.
+type PayloadUnmarshaler interface {
+	UnmarshalPayload(io.Reader, interface{}) error
+}
+
+// HandlerPayloadUnmarshal implements the PayloadUnmarshaler from a
+// HandlerList. This provides the support for unmarshaling a payload reader to
+// a shape without needing a SDK request first.
+type HandlerPayloadUnmarshal struct {
+	Unmarshalers request.HandlerList
+}
+
+// UnmarshalPayload unmarshals the io.Reader payload into the SDK shape using
+// the Unmarshalers HandlerList provided. Returns an error if unable
+// unmarshaling fails.
+func (h HandlerPayloadUnmarshal) UnmarshalPayload(r io.Reader, v interface{}) error {
+	req := &request.Request{
+		HTTPRequest: &http.Request{},
+		HTTPResponse: &http.Response{
+			StatusCode: 200,
+			Header:     http.Header{},
+			Body:       ioutil.NopCloser(r),
+		},
+		Data: v,
+	}
+
+	h.Unmarshalers.Run(req)
+
+	return req.Error
+}
+
+// PayloadMarshaler provides the interface for marshaling a SDK shape into and
+// io.Writer.
+type PayloadMarshaler interface {
+	MarshalPayload(io.Writer, interface{}) error
+}
+
+// HandlerPayloadMarshal implements the PayloadMarshaler from a HandlerList.
+// This provides support for marshaling a SDK shape into an io.Writer without
+// needing a SDK request first.
+type HandlerPayloadMarshal struct {
+	Marshalers request.HandlerList
+}
+
+// MarshalPayload marshals the SDK shape into the io.Writer using the
+// Marshalers HandlerList provided. Returns an error if unable if marshal
+// fails.
+func (h HandlerPayloadMarshal) MarshalPayload(w io.Writer, v interface{}) error {
+	req := request.New(
+		aws.Config{},
+		metadata.ClientInfo{},
+		request.Handlers{},
+		nil,
+		&request.Operation{HTTPMethod: "GET"},
+		v,
+		nil,
+	)
+
+	h.Marshalers.Run(req)
+
+	if req.Error != nil {
+		return req.Error
+	}
+
+	io.Copy(w, req.GetBody())
+
+	return nil
+}

vendor/github.com/aws/aws-sdk-go/private/protocol/query/build.go

@@ -25,7 +25,7 @@ func Build(r *request.Request) {
 		return
 	}
 
-	if r.ExpireTime == 0 {
+	if !r.IsPresigned() {
 		r.HTTPRequest.Method = "POST"
 		r.HTTPRequest.Header.Set("Content-Type", "application/x-www-form-urlencoded; charset=utf-8")
 		r.SetBufferBody([]byte(body.Encode()))

vendor/github.com/aws/aws-sdk-go/private/protocol/query/queryutil/queryutil.go

@@ -233,7 +233,12 @@ func (q *queryParser) parseScalar(v url.Values, r reflect.Value, name string, ta
 		v.Set(name, strconv.FormatFloat(float64(value), 'f', -1, 32))
 	case time.Time:
 		const ISO8601UTC = "2006-01-02T15:04:05Z"
-		v.Set(name, value.UTC().Format(ISO8601UTC))
+		format := tag.Get("timestampFormat")
+		if len(format) == 0 {
+			format = protocol.ISO8601TimeFormatName
+		}
+
+		v.Set(name, protocol.FormatTime(format, value))
 	default:
 		return fmt.Errorf("unsupported value for param %s: %v (%s)", name, r.Interface(), r.Type().Name())
 	}

vendor/github.com/aws/aws-sdk-go/private/protocol/rest/build.go

@@ -20,9 +20,6 @@ import (
 	"github.com/aws/aws-sdk-go/private/protocol"
 )
 
-// RFC822 returns an RFC822 formatted timestamp for AWS protocols
-const RFC822 = "Mon, 2 Jan 2006 15:04:05 GMT"
-
 // Whether the byte value can be sent without escaping in AWS URLs
 var noEscape [256]bool
 
@@ -270,7 +267,14 @@ func convertType(v reflect.Value, tag reflect.StructTag) (str string, err error)
 	case float64:
 		str = strconv.FormatFloat(value, 'f', -1, 64)
 	case time.Time:
-		str = value.UTC().Format(RFC822)
+		format := tag.Get("timestampFormat")
+		if len(format) == 0 {
+			format = protocol.RFC822TimeFormatName
+			if tag.Get("location") == "querystring" {
+				format = protocol.ISO8601TimeFormatName
+			}
+		}
+		str = protocol.FormatTime(format, value)
 	case aws.JSONValue:
 		if len(value) == 0 {
 			return "", errValueNotSet

vendor/github.com/aws/aws-sdk-go/private/protocol/rest/unmarshal.go

@@ -198,7 +198,11 @@ func unmarshalHeader(v reflect.Value, header string, tag reflect.StructTag) erro
 		}
 		v.Set(reflect.ValueOf(&f))
 	case *time.Time:
-		t, err := time.Parse(RFC822, header)
+		format := tag.Get("timestampFormat")
+		if len(format) == 0 {
+			format = protocol.RFC822TimeFormatName
+		}
+		t, err := protocol.ParseTime(format, header)
 		if err != nil {
 			return err
 		}

vendor/github.com/aws/aws-sdk-go/private/protocol/timestamp.go

@@ -0,0 +1,72 @@
+package protocol
+
+import (
+	"strconv"
+	"time"
+)
+
+// Names of time formats supported by the SDK
+const (
+	RFC822TimeFormatName  = "rfc822"
+	ISO8601TimeFormatName = "iso8601"
+	UnixTimeFormatName    = "unixTimestamp"
+)
+
+// Time formats supported by the SDK
+const (
+	// RFC 7231#section-7.1.1.1 timetamp format. e.g Tue, 29 Apr 2014 18:30:38 GMT
+	RFC822TimeFormat = "Mon, 2 Jan 2006 15:04:05 GMT"
+
+	// RFC3339 a subset of the ISO8601 timestamp format. e.g 2014-04-29T18:30:38Z
+	ISO8601TimeFormat = "2006-01-02T15:04:05Z"
+)
+
+// IsKnownTimestampFormat returns if the timestamp format name
+// is know to the SDK's protocols.
+func IsKnownTimestampFormat(name string) bool {
+	switch name {
+	case RFC822TimeFormatName:
+		fallthrough
+	case ISO8601TimeFormatName:
+		fallthrough
+	case UnixTimeFormatName:
+		return true
+	default:
+		return false
+	}
+}
+
+// FormatTime returns a string value of the time.
+func FormatTime(name string, t time.Time) string {
+	t = t.UTC()
+
+	switch name {
+	case RFC822TimeFormatName:
+		return t.Format(RFC822TimeFormat)
+	case ISO8601TimeFormatName:
+		return t.Format(ISO8601TimeFormat)
+	case UnixTimeFormatName:
+		return strconv.FormatInt(t.Unix(), 10)
+	default:
+		panic("unknown timestamp format name, " + name)
+	}
+}
+
+// ParseTime attempts to parse the time given the format. Returns
+// the time if it was able to be parsed, and fails otherwise.
+func ParseTime(formatName, value string) (time.Time, error) {
+	switch formatName {
+	case RFC822TimeFormatName:
+		return time.Parse(RFC822TimeFormat, value)
+	case ISO8601TimeFormatName:
+		return time.Parse(ISO8601TimeFormat, value)
+	case UnixTimeFormatName:
+		v, err := strconv.ParseFloat(value, 64)
+		if err != nil {
+			return time.Time{}, err
+		}
+		return time.Unix(int64(v), 0), nil
+	default:
+		panic("unknown timestamp format name, " + formatName)
+	}
+}

vendor/github.com/aws/aws-sdk-go/private/protocol/xml/xmlutil/build.go

@@ -13,9 +13,13 @@ import (
 	"github.com/aws/aws-sdk-go/private/protocol"
 )
 
-// BuildXML will serialize params into an xml.Encoder.
-// Error will be returned if the serialization of any of the params or nested values fails.
+// BuildXML will serialize params into an xml.Encoder. Error will be returned
+// if the serialization of any of the params or nested values fails.
 func BuildXML(params interface{}, e *xml.Encoder) error {
+	return buildXML(params, e, false)
+}
+
+func buildXML(params interface{}, e *xml.Encoder, sorted bool) error {
 	b := xmlBuilder{encoder: e, namespaces: map[string]string{}}
 	root := NewXMLElement(xml.Name{})
 	if err := b.buildValue(reflect.ValueOf(params), root, ""); err != nil {
@@ -23,7 +27,7 @@ func BuildXML(params interface{}, e *xml.Encoder) error {
 	}
 	for _, c := range root.Children {
 		for _, v := range c {
-			return StructToXML(e, v, false)
+			return StructToXML(e, v, sorted)
 		}
 	}
 	return nil
@@ -90,8 +94,6 @@ func (b *xmlBuilder) buildStruct(value reflect.Value, current *XMLNode, tag refl
 		return nil
 	}
 
-	fieldAdded := false
-
 	// unwrap payloads
 	if payload := tag.Get("payload"); payload != "" {
 		field, _ := value.Type().FieldByName(payload)
@@ -119,6 +121,8 @@ func (b *xmlBuilder) buildStruct(value reflect.Value, current *XMLNode, tag refl
 		child.Attr = append(child.Attr, ns)
 	}
 
+	var payloadFields, nonPayloadFields int
+
 	t := value.Type()
 	for i := 0; i < value.NumField(); i++ {
 		member := elemOf(value.Field(i))
@@ -133,8 +137,10 @@ func (b *xmlBuilder) buildStruct(value reflect.Value, current *XMLNode, tag refl
 
 		mTag := field.Tag
 		if mTag.Get("location") != "" { // skip non-body members
+			nonPayloadFields++
 			continue
 		}
+		payloadFields++
 
 		if protocol.CanSetIdempotencyToken(value.Field(i), field) {
 			token := protocol.GetIdempotencyToken()
@@ -149,11 +155,11 @@ func (b *xmlBuilder) buildStruct(value reflect.Value, current *XMLNode, tag refl
 		if err := b.buildValue(member, child, mTag); err != nil {
 			return err
 		}
-
-		fieldAdded = true
 	}
 
-	if fieldAdded { // only append this child if we have one ore more valid members
+	// Only case where the child shape is not added is if the shape only contains
+	// non-payload fields, e.g headers/query.
+	if !(payloadFields == 0 && nonPayloadFields > 0) {
 		current.AddChild(child)
 	}
 
@@ -278,8 +284,12 @@ func (b *xmlBuilder) buildScalar(value reflect.Value, current *XMLNode, tag refl
 	case float32:
 		str = strconv.FormatFloat(float64(converted), 'f', -1, 32)
 	case time.Time:
-		const ISO8601UTC = "2006-01-02T15:04:05Z"
-		str = converted.UTC().Format(ISO8601UTC)
+		format := tag.Get("timestampFormat")
+		if len(format) == 0 {
+			format = protocol.ISO8601TimeFormatName
+		}
+
+		str = protocol.FormatTime(format, converted)
 	default:
 		return fmt.Errorf("unsupported value for param %s: %v (%s)",
 			tag.Get("locationName"), value.Interface(), value.Type().Name())

vendor/github.com/aws/aws-sdk-go/private/protocol/xml/xmlutil/unmarshal.go

@@ -9,6 +9,8 @@ import (
 	"strconv"
 	"strings"
 	"time"
+
+	"github.com/aws/aws-sdk-go/private/protocol"
 )
 
 // UnmarshalXML deserializes an xml.Decoder into the container v. V
@@ -52,9 +54,15 @@ func parse(r reflect.Value, node *XMLNode, tag reflect.StructTag) error {
 	if t == "" {
 		switch rtype.Kind() {
 		case reflect.Struct:
+			// also it can't be a time object
+			if _, ok := r.Interface().(*time.Time); !ok {
 				t = "structure"
+			}
 		case reflect.Slice:
+			// also it can't be a byte slice
+			if _, ok := r.Interface().([]byte); !ok {
 				t = "list"
+			}
 		case reflect.Map:
 			t = "map"
 		}
@@ -247,8 +255,12 @@ func parseScalar(r reflect.Value, node *XMLNode, tag reflect.StructTag) error {
 		}
 		r.Set(reflect.ValueOf(&v))
 	case *time.Time:
-		const ISO8601UTC = "2006-01-02T15:04:05Z"
-		t, err := time.Parse(ISO8601UTC, node.Text)
+		format := tag.Get("timestampFormat")
+		if len(format) == 0 {
+			format = protocol.ISO8601TimeFormatName
+		}
+
+		t, err := protocol.ParseTime(format, node.Text)
 		if err != nil {
 			return err
 		}

vendor/github.com/aws/aws-sdk-go/private/protocol/xml/xmlutil/xml_to_struct.go

@@ -29,6 +29,7 @@ func NewXMLElement(name xml.Name) *XMLNode {
 
 // AddChild adds child to the XMLNode.
 func (n *XMLNode) AddChild(child *XMLNode) {
+	child.parent = n
 	if _, ok := n.Children[child.Name.Local]; !ok {
 		n.Children[child.Name.Local] = []*XMLNode{}
 	}

vendor/github.com/aws/aws-sdk-go/service/s3/body_hash.go

@@ -0,0 +1,249 @@
+package s3
+
+import (
+	"bytes"
+	"crypto/md5"
+	"crypto/sha256"
+	"encoding/base64"
+	"encoding/hex"
+	"fmt"
+	"hash"
+	"io"
+
+	"github.com/aws/aws-sdk-go/aws"
+	"github.com/aws/aws-sdk-go/aws/awserr"
+	"github.com/aws/aws-sdk-go/aws/request"
+	"github.com/aws/aws-sdk-go/internal/sdkio"
+)
+
+const (
+	contentMD5Header    = "Content-Md5"
+	contentSha256Header = "X-Amz-Content-Sha256"
+	amzTeHeader         = "X-Amz-Te"
+	amzTxEncodingHeader = "X-Amz-Transfer-Encoding"
+
+	appendMD5TxEncoding = "append-md5"
+)
+
+// contentMD5 computes and sets the HTTP Content-MD5 header for requests that
+// require it.
+func contentMD5(r *request.Request) {
+	h := md5.New()
+
+	if !aws.IsReaderSeekable(r.Body) {
+		if r.Config.Logger != nil {
+			r.Config.Logger.Log(fmt.Sprintf(
+				"Unable to compute Content-MD5 for unseekable body, S3.%s",
+				r.Operation.Name))
+		}
+		return
+	}
+
+	if _, err := copySeekableBody(h, r.Body); err != nil {
+		r.Error = awserr.New("ContentMD5", "failed to compute body MD5", err)
+		return
+	}
+
+	// encode the md5 checksum in base64 and set the request header.
+	v := base64.StdEncoding.EncodeToString(h.Sum(nil))
+	r.HTTPRequest.Header.Set(contentMD5Header, v)
+}
+
+// computeBodyHashes will add Content MD5 and Content Sha256 hashes to the
+// request. If the body is not seekable or S3DisableContentMD5Validation set
+// this handler will be ignored.
+func computeBodyHashes(r *request.Request) {
+	if aws.BoolValue(r.Config.S3DisableContentMD5Validation) {
+		return
+	}
+	if r.IsPresigned() {
+		return
+	}
+	if r.Error != nil || !aws.IsReaderSeekable(r.Body) {
+		return
+	}
+
+	var md5Hash, sha256Hash hash.Hash
+	hashers := make([]io.Writer, 0, 2)
+
+	// Determine upfront which hashes can be set without overriding user
+	// provide header data.
+	if v := r.HTTPRequest.Header.Get(contentMD5Header); len(v) == 0 {
+		md5Hash = md5.New()
+		hashers = append(hashers, md5Hash)
+	}
+
+	if v := r.HTTPRequest.Header.Get(contentSha256Header); len(v) == 0 {
+		sha256Hash = sha256.New()
+		hashers = append(hashers, sha256Hash)
+	}
+
+	// Create the destination writer based on the hashes that are not already
+	// provided by the user.
+	var dst io.Writer
+	switch len(hashers) {
+	case 0:
+		return
+	case 1:
+		dst = hashers[0]
+	default:
+		dst = io.MultiWriter(hashers...)
+	}
+
+	if _, err := copySeekableBody(dst, r.Body); err != nil {
+		r.Error = awserr.New("BodyHashError", "failed to compute body hashes", err)
+		return
+	}
+
+	// For the hashes created, set the associated headers that the user did not
+	// already provide.
+	if md5Hash != nil {
+		sum := make([]byte, md5.Size)
+		encoded := make([]byte, md5Base64EncLen)
+
+		base64.StdEncoding.Encode(encoded, md5Hash.Sum(sum[0:0]))
+		r.HTTPRequest.Header[contentMD5Header] = []string{string(encoded)}
+	}
+
+	if sha256Hash != nil {
+		encoded := make([]byte, sha256HexEncLen)
+		sum := make([]byte, sha256.Size)
+
+		hex.Encode(encoded, sha256Hash.Sum(sum[0:0]))
+		r.HTTPRequest.Header[contentSha256Header] = []string{string(encoded)}
+	}
+}
+
+const (
+	md5Base64EncLen = (md5.Size + 2) / 3 * 4 // base64.StdEncoding.EncodedLen
+	sha256HexEncLen = sha256.Size * 2        // hex.EncodedLen
+)
+
+func copySeekableBody(dst io.Writer, src io.ReadSeeker) (int64, error) {
+	curPos, err := src.Seek(0, sdkio.SeekCurrent)
+	if err != nil {
+		return 0, err
+	}
+
+	// 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.
+	n, err := io.Copy(dst, src)
+	if err != nil {
+		return n, err
+	}
+
+	_, err = src.Seek(curPos, sdkio.SeekStart)
+	if err != nil {
+		return n, err
+	}
+
+	return n, nil
+}
+
+// Adds the x-amz-te: append_md5 header to the request. This requests the service
+// responds with a trailing MD5 checksum.
+//
+// Will not ask for append MD5 if disabled, the request is presigned or,
+// or the API operation does not support content MD5 validation.
+func askForTxEncodingAppendMD5(r *request.Request) {
+	if aws.BoolValue(r.Config.S3DisableContentMD5Validation) {
+		return
+	}
+	if r.IsPresigned() {
+		return
+	}
+	r.HTTPRequest.Header.Set(amzTeHeader, appendMD5TxEncoding)
+}
+
+func useMD5ValidationReader(r *request.Request) {
+	if r.Error != nil {
+		return
+	}
+
+	if v := r.HTTPResponse.Header.Get(amzTxEncodingHeader); v != appendMD5TxEncoding {
+		return
+	}
+
+	var bodyReader *io.ReadCloser
+	var contentLen int64
+	switch tv := r.Data.(type) {
+	case *GetObjectOutput:
+		bodyReader = &tv.Body
+		contentLen = aws.Int64Value(tv.ContentLength)
+		// Update ContentLength hiden the trailing MD5 checksum.
+		tv.ContentLength = aws.Int64(contentLen - md5.Size)
+		tv.ContentRange = aws.String(r.HTTPResponse.Header.Get("X-Amz-Content-Range"))
+	default:
+		r.Error = awserr.New("ChecksumValidationError",
+			fmt.Sprintf("%s: %s header received on unsupported API, %s",
+				amzTxEncodingHeader, appendMD5TxEncoding, r.Operation.Name,
+			), nil)
+		return
+	}
+
+	if contentLen < md5.Size {
+		r.Error = awserr.New("ChecksumValidationError",
+			fmt.Sprintf("invalid Content-Length %d for %s %s",
+				contentLen, appendMD5TxEncoding, amzTxEncodingHeader,
+			), nil)
+		return
+	}
+
+	// Wrap and swap the response body reader with the validation reader.
+	*bodyReader = newMD5ValidationReader(*bodyReader, contentLen-md5.Size)
+}
+
+type md5ValidationReader struct {
+	rawReader io.ReadCloser
+	payload   io.Reader
+	hash      hash.Hash
+
+	payloadLen int64
+	read       int64
+}
+
+func newMD5ValidationReader(reader io.ReadCloser, payloadLen int64) *md5ValidationReader {
+	h := md5.New()
+	return &md5ValidationReader{
+		rawReader:  reader,
+		payload:    io.TeeReader(&io.LimitedReader{R: reader, N: payloadLen}, h),
+		hash:       h,
+		payloadLen: payloadLen,
+	}
+}
+
+func (v *md5ValidationReader) Read(p []byte) (n int, err error) {
+	n, err = v.payload.Read(p)
+	if err != nil && err != io.EOF {
+		return n, err
+	}
+
+	v.read += int64(n)
+
+	if err == io.EOF {
+		if v.read != v.payloadLen {
+			return n, io.ErrUnexpectedEOF
+		}
+		expectSum := make([]byte, md5.Size)
+		actualSum := make([]byte, md5.Size)
+		if _, sumReadErr := io.ReadFull(v.rawReader, expectSum); sumReadErr != nil {
+			return n, sumReadErr
+		}
+		actualSum = v.hash.Sum(actualSum[0:0])
+		if !bytes.Equal(expectSum, actualSum) {
+			return n, awserr.New("InvalidChecksum",
+				fmt.Sprintf("expected MD5 checksum %s, got %s",
+					hex.EncodeToString(expectSum),
+					hex.EncodeToString(actualSum),
+				),
+				nil)
+		}
+	}
+
+	return n, err
+}
+
+func (v *md5ValidationReader) Close() error {
+	return v.rawReader.Close()
+}

vendor/github.com/aws/aws-sdk-go/service/s3/content_md5.go

@@ -1,36 +0,0 @@
-package s3
-
-import (
-	"crypto/md5"
-	"encoding/base64"
-	"io"
-
-	"github.com/aws/aws-sdk-go/aws/awserr"
-	"github.com/aws/aws-sdk-go/aws/request"
-)
-
-// contentMD5 computes and sets the HTTP Content-MD5 header for requests that
-// require it.
-func contentMD5(r *request.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 = awserr.New("ContentMD5", "failed to read body", err)
-		return
-	}
-	_, err = r.Body.Seek(0, 0)
-	if err != nil {
-		r.Error = awserr.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))
-}

vendor/github.com/aws/aws-sdk-go/service/s3/customizations.go

@@ -42,6 +42,12 @@ func defaultInitRequestFn(r *request.Request) {
 		r.Handlers.Validate.PushFront(populateLocationConstraint)
 	case opCopyObject, opUploadPartCopy, opCompleteMultipartUpload:
 		r.Handlers.Unmarshal.PushFront(copyMultipartStatusOKUnmarhsalError)
+	case opPutObject, opUploadPart:
+		r.Handlers.Build.PushBack(computeBodyHashes)
+		// Disabled until #1837 root issue is resolved.
+		//	case opGetObject:
+		//		r.Handlers.Build.PushBack(askForTxEncodingAppendMD5)
+		//		r.Handlers.Unmarshal.PushBack(useMD5ValidationReader)
 	}
 }
 

vendor/github.com/aws/aws-sdk-go/service/s3/service.go

@@ -29,8 +29,9 @@ var initRequest func(*request.Request)
 
 // Service information constants
 const (
-	ServiceName = "s3"        // Service endpoint prefix API calls made to.
-	EndpointsID = ServiceName // Service ID for Regions and Endpoints metadata.
+	ServiceName = "s3"        // Name of service.
+	EndpointsID = ServiceName // ID to lookup a service endpoint with.
+	ServiceID   = "S3"        // ServiceID is a unique identifer of a specific service.
 )
 
 // New creates a new instance of the S3 client with a session.
@@ -55,6 +56,7 @@ func newClient(cfg aws.Config, handlers request.Handlers, endpoint, signingRegio
 			cfg,
 			metadata.ClientInfo{
 				ServiceName:   ServiceName,
+				ServiceID:     ServiceID,
 				SigningName:   signingName,
 				SigningRegion: signingRegion,
 				Endpoint:      endpoint,
@@ -71,6 +73,8 @@ func newClient(cfg aws.Config, handlers request.Handlers, endpoint, signingRegio
 	svc.Handlers.UnmarshalMeta.PushBackNamed(restxml.UnmarshalMetaHandler)
 	svc.Handlers.UnmarshalError.PushBackNamed(restxml.UnmarshalErrorHandler)
 
+	svc.Handlers.UnmarshalStream.PushBackNamed(restxml.UnmarshalHandler)
+
 	// Run custom client initialization if present
 	if initClient != nil {
 		initClient(svc.Client)

vendor/github.com/aws/aws-sdk-go/service/s3/statusok_error.go

@@ -7,6 +7,7 @@ import (
 
 	"github.com/aws/aws-sdk-go/aws/awserr"
 	"github.com/aws/aws-sdk-go/aws/request"
+	"github.com/aws/aws-sdk-go/internal/sdkio"
 )
 
 func copyMultipartStatusOKUnmarhsalError(r *request.Request) {
@@ -17,7 +18,7 @@ func copyMultipartStatusOKUnmarhsalError(r *request.Request) {
 	}
 	body := bytes.NewReader(b)
 	r.HTTPResponse.Body = ioutil.NopCloser(body)
-	defer body.Seek(0, 0)
+	defer body.Seek(0, sdkio.SeekStart)
 
 	if body.Len() == 0 {
 		// If there is no body don't attempt to parse the body.

vendor/github.com/aws/aws-sdk-go/service/sts/api.go

@@ -14,7 +14,7 @@ const opAssumeRole = "AssumeRole"
 
 // AssumeRoleRequest generates a "aws/request.Request" representing the
 // client's request for the AssumeRole operation. The "output" return
-// value will be populated with the request's response once the request complets
+// value will be populated with the request's response once the request completes
 // successfuly.
 //
 // Use "Send" method on the returned Request to send the API call to the service.
@@ -35,7 +35,7 @@ const opAssumeRole = "AssumeRole"
 //        fmt.Println(resp)
 //    }
 //
-// Please also see https://docs.aws.amazon.com/goto/WebAPI/sts-2011-06-15/AssumeRole
+// See also, https://docs.aws.amazon.com/goto/WebAPI/sts-2011-06-15/AssumeRole
 func (c *STS) AssumeRoleRequest(input *AssumeRoleInput) (req *request.Request, output *AssumeRoleOutput) {
 	op := &request.Operation{
 		Name:       opAssumeRole,
@@ -88,9 +88,18 @@ func (c *STS) AssumeRoleRequest(input *AssumeRoleInput) (req *request.Request, o
 // Scenarios for Temporary Credentials (http://docs.aws.amazon.com/IAM/latest/UserGuide/id_credentials_temp.html#sts-introduction)
 // in the IAM User Guide.
 //
-// The temporary security credentials are valid for the duration that you specified
-// when calling AssumeRole, which can be from 900 seconds (15 minutes) to a
-// maximum of 3600 seconds (1 hour). The default is 1 hour.
+// By default, the temporary security credentials created by AssumeRole last
+// for one hour. However, you can use the optional DurationSeconds parameter
+// to specify the duration of your session. You can provide a value from 900
+// seconds (15 minutes) up to the maximum session duration setting for the role.
+// This setting can have a value from 1 hour to 12 hours. To learn how to view
+// the maximum value for your role, see View the Maximum Session Duration Setting
+// for a Role (http://docs.aws.amazon.com/IAM/latest/UserGuide/id_roles_use.html#id_roles_use_view-role-max-session)
+// in the IAM User Guide. The maximum session duration limit applies when you
+// use the AssumeRole* API operations or the assume-role* CLI operations but
+// does not apply when you use those operations to create a console URL. For
+// more information, see Using IAM Roles (http://docs.aws.amazon.com/IAM/latest/UserGuide/id_roles_use.html)
+// in the IAM User Guide.
 //
 // The temporary security credentials created by AssumeRole can be used to make
 // API calls to any AWS service with the following exception: you cannot call
@@ -121,7 +130,12 @@ func (c *STS) AssumeRoleRequest(input *AssumeRoleInput) (req *request.Request, o
 // the user to call AssumeRole on the ARN of the role in the other account.
 // If the user is in the same account as the role, then you can either attach
 // a policy to the user (identical to the previous different account user),
-// or you can add the user as a principal directly in the role's trust policy
+// or you can add the user as a principal directly in the role's trust policy.
+// In this case, the trust policy acts as the only resource-based policy in
+// IAM, and users in the same account as the role do not need explicit permission
+// to assume the role. For more information about trust policies and resource-based
+// policies, see IAM Policies (http://docs.aws.amazon.com/IAM/latest/UserGuide/access_policies.html)
+// in the IAM User Guide.
 //
 // Using MFA with AssumeRole
 //
@@ -168,7 +182,7 @@ func (c *STS) AssumeRoleRequest(input *AssumeRoleInput) (req *request.Request, o
 //   and Deactivating AWS STS in an AWS Region (http://docs.aws.amazon.com/IAM/latest/UserGuide/id_credentials_temp_enable-regions.html)
 //   in the IAM User Guide.
 //
-// Please also see https://docs.aws.amazon.com/goto/WebAPI/sts-2011-06-15/AssumeRole
+// See also, https://docs.aws.amazon.com/goto/WebAPI/sts-2011-06-15/AssumeRole
 func (c *STS) AssumeRole(input *AssumeRoleInput) (*AssumeRoleOutput, error) {
 	req, out := c.AssumeRoleRequest(input)
 	return out, req.Send()
@@ -194,7 +208,7 @@ const opAssumeRoleWithSAML = "AssumeRoleWithSAML"
 
 // AssumeRoleWithSAMLRequest generates a "aws/request.Request" representing the
 // client's request for the AssumeRoleWithSAML operation. The "output" return
-// value will be populated with the request's response once the request complets
+// value will be populated with the request's response once the request completes
 // successfuly.
 //
 // Use "Send" method on the returned Request to send the API call to the service.
@@ -215,7 +229,7 @@ const opAssumeRoleWithSAML = "AssumeRoleWithSAML"
 //        fmt.Println(resp)
 //    }
 //
-// Please also see https://docs.aws.amazon.com/goto/WebAPI/sts-2011-06-15/AssumeRoleWithSAML
+// See also, https://docs.aws.amazon.com/goto/WebAPI/sts-2011-06-15/AssumeRoleWithSAML
 func (c *STS) AssumeRoleWithSAMLRequest(input *AssumeRoleWithSAMLInput) (req *request.Request, output *AssumeRoleWithSAMLOutput) {
 	op := &request.Operation{
 		Name:       opAssumeRoleWithSAML,
@@ -247,11 +261,20 @@ func (c *STS) AssumeRoleWithSAMLRequest(input *AssumeRoleWithSAMLInput) (req *re
 // an access key ID, a secret access key, and a security token. Applications
 // can use these temporary security credentials to sign calls to AWS services.
 //
-// The temporary security credentials are valid for the duration that you specified
-// when calling AssumeRole, or until the time specified in the SAML authentication
-// response's SessionNotOnOrAfter value, whichever is shorter. The duration
-// can be from 900 seconds (15 minutes) to a maximum of 3600 seconds (1 hour).
-// The default is 1 hour.
+// By default, the temporary security credentials created by AssumeRoleWithSAML
+// last for one hour. However, you can use the optional DurationSeconds parameter
+// to specify the duration of your session. Your role session lasts for the
+// duration that you specify, or until the time specified in the SAML authentication
+// response's SessionNotOnOrAfter value, whichever is shorter. You can provide
+// a DurationSeconds value from 900 seconds (15 minutes) up to the maximum session
+// duration setting for the role. This setting can have a value from 1 hour
+// to 12 hours. To learn how to view the maximum value for your role, see View
+// the Maximum Session Duration Setting for a Role (http://docs.aws.amazon.com/IAM/latest/UserGuide/id_roles_use.html#id_roles_use_view-role-max-session)
+// in the IAM User Guide. The maximum session duration limit applies when you
+// use the AssumeRole* API operations or the assume-role* CLI operations but
+// does not apply when you use those operations to create a console URL. For
+// more information, see Using IAM Roles (http://docs.aws.amazon.com/IAM/latest/UserGuide/id_roles_use.html)
+// in the IAM User Guide.
 //
 // The temporary security credentials created by AssumeRoleWithSAML can be used
 // to make API calls to any AWS service with the following exception: you cannot
@@ -341,7 +364,7 @@ func (c *STS) AssumeRoleWithSAMLRequest(input *AssumeRoleWithSAMLInput) (req *re
 //   and Deactivating AWS STS in an AWS Region (http://docs.aws.amazon.com/IAM/latest/UserGuide/id_credentials_temp_enable-regions.html)
 //   in the IAM User Guide.
 //
-// Please also see https://docs.aws.amazon.com/goto/WebAPI/sts-2011-06-15/AssumeRoleWithSAML
+// See also, https://docs.aws.amazon.com/goto/WebAPI/sts-2011-06-15/AssumeRoleWithSAML
 func (c *STS) AssumeRoleWithSAML(input *AssumeRoleWithSAMLInput) (*AssumeRoleWithSAMLOutput, error) {
 	req, out := c.AssumeRoleWithSAMLRequest(input)
 	return out, req.Send()
@@ -367,7 +390,7 @@ const opAssumeRoleWithWebIdentity = "AssumeRoleWithWebIdentity"
 
 // AssumeRoleWithWebIdentityRequest generates a "aws/request.Request" representing the
 // client's request for the AssumeRoleWithWebIdentity operation. The "output" return
-// value will be populated with the request's response once the request complets
+// value will be populated with the request's response once the request completes
 // successfuly.
 //
 // Use "Send" method on the returned Request to send the API call to the service.
@@ -388,7 +411,7 @@ const opAssumeRoleWithWebIdentity = "AssumeRoleWithWebIdentity"
 //        fmt.Println(resp)
 //    }
 //
-// Please also see https://docs.aws.amazon.com/goto/WebAPI/sts-2011-06-15/AssumeRoleWithWebIdentity
+// See also, https://docs.aws.amazon.com/goto/WebAPI/sts-2011-06-15/AssumeRoleWithWebIdentity
 func (c *STS) AssumeRoleWithWebIdentityRequest(input *AssumeRoleWithWebIdentityInput) (req *request.Request, output *AssumeRoleWithWebIdentityOutput) {
 	op := &request.Operation{
 		Name:       opAssumeRoleWithWebIdentity,
@@ -438,9 +461,18 @@ func (c *STS) AssumeRoleWithWebIdentityRequest(input *AssumeRoleWithWebIdentityI
 // key ID, a secret access key, and a security token. Applications can use these
 // temporary security credentials to sign calls to AWS service APIs.
 //
-// The credentials are valid for the duration that you specified when calling
-// AssumeRoleWithWebIdentity, which can be from 900 seconds (15 minutes) to
-// a maximum of 3600 seconds (1 hour). The default is 1 hour.
+// By default, the temporary security credentials created by AssumeRoleWithWebIdentity
+// last for one hour. However, you can use the optional DurationSeconds parameter
+// to specify the duration of your session. You can provide a value from 900
+// seconds (15 minutes) up to the maximum session duration setting for the role.
+// This setting can have a value from 1 hour to 12 hours. To learn how to view
+// the maximum value for your role, see View the Maximum Session Duration Setting
+// for a Role (http://docs.aws.amazon.com/IAM/latest/UserGuide/id_roles_use.html#id_roles_use_view-role-max-session)
+// in the IAM User Guide. The maximum session duration limit applies when you
+// use the AssumeRole* API operations or the assume-role* CLI operations but
+// does not apply when you use those operations to create a console URL. For
+// more information, see Using IAM Roles (http://docs.aws.amazon.com/IAM/latest/UserGuide/id_roles_use.html)
+// in the IAM User Guide.
 //
 // The temporary security credentials created by AssumeRoleWithWebIdentity can
 // be used to make API calls to any AWS service with the following exception:
@@ -492,7 +524,7 @@ func (c *STS) AssumeRoleWithWebIdentityRequest(input *AssumeRoleWithWebIdentityI
 //    the information from these providers to get and use temporary security
 //    credentials.
 //
-//    * Web Identity Federation with Mobile Applications (http://aws.amazon.com/articles/4617974389850313).
+//    * Web Identity Federation with Mobile Applications (http://aws.amazon.com/articles/web-identity-federation-with-mobile-applications).
 //    This article discusses web identity federation and shows an example of
 //    how to use web identity federation to get access to content in Amazon
 //    S3.
@@ -543,7 +575,7 @@ func (c *STS) AssumeRoleWithWebIdentityRequest(input *AssumeRoleWithWebIdentityI
 //   and Deactivating AWS STS in an AWS Region (http://docs.aws.amazon.com/IAM/latest/UserGuide/id_credentials_temp_enable-regions.html)
 //   in the IAM User Guide.
 //
-// Please also see https://docs.aws.amazon.com/goto/WebAPI/sts-2011-06-15/AssumeRoleWithWebIdentity
+// See also, https://docs.aws.amazon.com/goto/WebAPI/sts-2011-06-15/AssumeRoleWithWebIdentity
 func (c *STS) AssumeRoleWithWebIdentity(input *AssumeRoleWithWebIdentityInput) (*AssumeRoleWithWebIdentityOutput, error) {
 	req, out := c.AssumeRoleWithWebIdentityRequest(input)
 	return out, req.Send()
@@ -569,7 +601,7 @@ const opDecodeAuthorizationMessage = "DecodeAuthorizationMessage"
 
 // DecodeAuthorizationMessageRequest generates a "aws/request.Request" representing the
 // client's request for the DecodeAuthorizationMessage operation. The "output" return
-// value will be populated with the request's response once the request complets
+// value will be populated with the request's response once the request completes
 // successfuly.
 //
 // Use "Send" method on the returned Request to send the API call to the service.
@@ -590,7 +622,7 @@ const opDecodeAuthorizationMessage = "DecodeAuthorizationMessage"
 //        fmt.Println(resp)
 //    }
 //
-// Please also see https://docs.aws.amazon.com/goto/WebAPI/sts-2011-06-15/DecodeAuthorizationMessage
+// See also, https://docs.aws.amazon.com/goto/WebAPI/sts-2011-06-15/DecodeAuthorizationMessage
 func (c *STS) DecodeAuthorizationMessageRequest(input *DecodeAuthorizationMessageInput) (req *request.Request, output *DecodeAuthorizationMessageOutput) {
 	op := &request.Operation{
 		Name:       opDecodeAuthorizationMessage,
@@ -655,7 +687,7 @@ func (c *STS) DecodeAuthorizationMessageRequest(input *DecodeAuthorizationMessag
 //   invalid. This can happen if the token contains invalid characters, such as
 //   linebreaks.
 //
-// Please also see https://docs.aws.amazon.com/goto/WebAPI/sts-2011-06-15/DecodeAuthorizationMessage
+// See also, https://docs.aws.amazon.com/goto/WebAPI/sts-2011-06-15/DecodeAuthorizationMessage
 func (c *STS) DecodeAuthorizationMessage(input *DecodeAuthorizationMessageInput) (*DecodeAuthorizationMessageOutput, error) {
 	req, out := c.DecodeAuthorizationMessageRequest(input)
 	return out, req.Send()
@@ -681,7 +713,7 @@ const opGetCallerIdentity = "GetCallerIdentity"
 
 // GetCallerIdentityRequest generates a "aws/request.Request" representing the
 // client's request for the GetCallerIdentity operation. The "output" return
-// value will be populated with the request's response once the request complets
+// value will be populated with the request's response once the request completes
 // successfuly.
 //
 // Use "Send" method on the returned Request to send the API call to the service.
@@ -702,7 +734,7 @@ const opGetCallerIdentity = "GetCallerIdentity"
 //        fmt.Println(resp)
 //    }
 //
-// Please also see https://docs.aws.amazon.com/goto/WebAPI/sts-2011-06-15/GetCallerIdentity
+// See also, https://docs.aws.amazon.com/goto/WebAPI/sts-2011-06-15/GetCallerIdentity
 func (c *STS) GetCallerIdentityRequest(input *GetCallerIdentityInput) (req *request.Request, output *GetCallerIdentityOutput) {
 	op := &request.Operation{
 		Name:       opGetCallerIdentity,
@@ -730,7 +762,7 @@ func (c *STS) GetCallerIdentityRequest(input *GetCallerIdentityInput) (req *requ
 //
 // See the AWS API reference guide for AWS Security Token Service's
 // API operation GetCallerIdentity for usage and error information.
-// Please also see https://docs.aws.amazon.com/goto/WebAPI/sts-2011-06-15/GetCallerIdentity
+// See also, https://docs.aws.amazon.com/goto/WebAPI/sts-2011-06-15/GetCallerIdentity
 func (c *STS) GetCallerIdentity(input *GetCallerIdentityInput) (*GetCallerIdentityOutput, error) {
 	req, out := c.GetCallerIdentityRequest(input)
 	return out, req.Send()
@@ -756,7 +788,7 @@ const opGetFederationToken = "GetFederationToken"
 
 // GetFederationTokenRequest generates a "aws/request.Request" representing the
 // client's request for the GetFederationToken operation. The "output" return
-// value will be populated with the request's response once the request complets
+// value will be populated with the request's response once the request completes
 // successfuly.
 //
 // Use "Send" method on the returned Request to send the API call to the service.
@@ -777,7 +809,7 @@ const opGetFederationToken = "GetFederationToken"
 //        fmt.Println(resp)
 //    }
 //
-// Please also see https://docs.aws.amazon.com/goto/WebAPI/sts-2011-06-15/GetFederationToken
+// See also, https://docs.aws.amazon.com/goto/WebAPI/sts-2011-06-15/GetFederationToken
 func (c *STS) GetFederationTokenRequest(input *GetFederationTokenInput) (req *request.Request, output *GetFederationTokenOutput) {
 	op := &request.Operation{
 		Name:       opGetFederationToken,
@@ -899,7 +931,7 @@ func (c *STS) GetFederationTokenRequest(input *GetFederationTokenInput) (req *re
 //   and Deactivating AWS STS in an AWS Region (http://docs.aws.amazon.com/IAM/latest/UserGuide/id_credentials_temp_enable-regions.html)
 //   in the IAM User Guide.
 //
-// Please also see https://docs.aws.amazon.com/goto/WebAPI/sts-2011-06-15/GetFederationToken
+// See also, https://docs.aws.amazon.com/goto/WebAPI/sts-2011-06-15/GetFederationToken
 func (c *STS) GetFederationToken(input *GetFederationTokenInput) (*GetFederationTokenOutput, error) {
 	req, out := c.GetFederationTokenRequest(input)
 	return out, req.Send()
@@ -925,7 +957,7 @@ const opGetSessionToken = "GetSessionToken"
 
 // GetSessionTokenRequest generates a "aws/request.Request" representing the
 // client's request for the GetSessionToken operation. The "output" return
-// value will be populated with the request's response once the request complets
+// value will be populated with the request's response once the request completes
 // successfuly.
 //
 // Use "Send" method on the returned Request to send the API call to the service.
@@ -946,7 +978,7 @@ const opGetSessionToken = "GetSessionToken"
 //        fmt.Println(resp)
 //    }
 //
-// Please also see https://docs.aws.amazon.com/goto/WebAPI/sts-2011-06-15/GetSessionToken
+// See also, https://docs.aws.amazon.com/goto/WebAPI/sts-2011-06-15/GetSessionToken
 func (c *STS) GetSessionTokenRequest(input *GetSessionTokenInput) (req *request.Request, output *GetSessionTokenOutput) {
 	op := &request.Operation{
 		Name:       opGetSessionToken,
@@ -1027,7 +1059,7 @@ func (c *STS) GetSessionTokenRequest(input *GetSessionTokenInput) (req *request.
 //   and Deactivating AWS STS in an AWS Region (http://docs.aws.amazon.com/IAM/latest/UserGuide/id_credentials_temp_enable-regions.html)
 //   in the IAM User Guide.
 //
-// Please also see https://docs.aws.amazon.com/goto/WebAPI/sts-2011-06-15/GetSessionToken
+// See also, https://docs.aws.amazon.com/goto/WebAPI/sts-2011-06-15/GetSessionToken
 func (c *STS) GetSessionToken(input *GetSessionTokenInput) (*GetSessionTokenOutput, error) {
 	req, out := c.GetSessionTokenRequest(input)
 	return out, req.Send()
@@ -1049,20 +1081,27 @@ func (c *STS) GetSessionTokenWithContext(ctx aws.Context, input *GetSessionToken
 	return out, req.Send()
 }
 
-// Please also see https://docs.aws.amazon.com/goto/WebAPI/sts-2011-06-15/AssumeRoleRequest
 type AssumeRoleInput struct {
 	_ struct{} `type:"structure"`
 
 	// The duration, in seconds, of the role session. The value can range from 900
-	// seconds (15 minutes) to 3600 seconds (1 hour). By default, the value is set
-	// to 3600 seconds.
+	// seconds (15 minutes) up to the maximum session duration setting for the role.
+	// This setting can have a value from 1 hour to 12 hours. If you specify a value
+	// higher than this setting, the operation fails. For example, if you specify
+	// a session duration of 12 hours, but your administrator set the maximum session
+	// duration to 6 hours, your operation fails. To learn how to view the maximum
+	// value for your role, see View the Maximum Session Duration Setting for a
+	// Role (http://docs.aws.amazon.com/IAM/latest/UserGuide/id_roles_use.html#id_roles_use_view-role-max-session)
+	// in the IAM User Guide.
 	//
-	// This is separate from the duration of a console session that you might request
-	// using the returned credentials. The request to the federation endpoint for
-	// a console sign-in token takes a SessionDuration parameter that specifies
-	// the maximum length of the console session, separately from the DurationSeconds
-	// parameter on this API. For more information, see Creating a URL that Enables
-	// Federated Users to Access the AWS Management Console (http://docs.aws.amazon.com/IAM/latest/UserGuide/id_roles_providers_enable-console-custom-url.html)
+	// By default, the value is set to 3600 seconds.
+	//
+	// The DurationSeconds parameter is separate from the duration of a console
+	// session that you might request using the returned credentials. The request
+	// to the federation endpoint for a console sign-in token takes a SessionDuration
+	// parameter that specifies the maximum length of the console session. For more
+	// information, see Creating a URL that Enables Federated Users to Access the
+	// AWS Management Console (http://docs.aws.amazon.com/IAM/latest/UserGuide/id_roles_providers_enable-console-custom-url.html)
 	// in the IAM User Guide.
 	DurationSeconds *int64 `min:"900" type:"integer"`
 
@@ -1241,7 +1280,6 @@ func (s *AssumeRoleInput) SetTokenCode(v string) *AssumeRoleInput {
 
 // Contains the response to a successful AssumeRole request, including temporary
 // AWS credentials that can be used to make AWS requests.
-// Please also see https://docs.aws.amazon.com/goto/WebAPI/sts-2011-06-15/AssumeRoleResponse
 type AssumeRoleOutput struct {
 	_ struct{} `type:"structure"`
 
@@ -1295,22 +1333,30 @@ func (s *AssumeRoleOutput) SetPackedPolicySize(v int64) *AssumeRoleOutput {
 	return s
 }
 
-// Please also see https://docs.aws.amazon.com/goto/WebAPI/sts-2011-06-15/AssumeRoleWithSAMLRequest
 type AssumeRoleWithSAMLInput struct {
 	_ struct{} `type:"structure"`
 
-	// The duration, in seconds, of the role session. The value can range from 900
-	// seconds (15 minutes) to 3600 seconds (1 hour). By default, the value is set
-	// to 3600 seconds. An expiration can also be specified in the SAML authentication
-	// response's SessionNotOnOrAfter value. The actual expiration time is whichever
-	// value is shorter.
+	// The duration, in seconds, of the role session. Your role session lasts for
+	// the duration that you specify for the DurationSeconds parameter, or until
+	// the time specified in the SAML authentication response's SessionNotOnOrAfter
+	// value, whichever is shorter. You can provide a DurationSeconds value from
+	// 900 seconds (15 minutes) up to the maximum session duration setting for the
+	// role. This setting can have a value from 1 hour to 12 hours. If you specify
+	// a value higher than this setting, the operation fails. For example, if you
+	// specify a session duration of 12 hours, but your administrator set the maximum
+	// session duration to 6 hours, your operation fails. To learn how to view the
+	// maximum value for your role, see View the Maximum Session Duration Setting
+	// for a Role (http://docs.aws.amazon.com/IAM/latest/UserGuide/id_roles_use.html#id_roles_use_view-role-max-session)
+	// in the IAM User Guide.
 	//
-	// This is separate from the duration of a console session that you might request
-	// using the returned credentials. The request to the federation endpoint for
-	// a console sign-in token takes a SessionDuration parameter that specifies
-	// the maximum length of the console session, separately from the DurationSeconds
-	// parameter on this API. For more information, see Enabling SAML 2.0 Federated
-	// Users to Access the AWS Management Console (http://docs.aws.amazon.com/IAM/latest/UserGuide/id_roles_providers_enable-console-saml.html)
+	// By default, the value is set to 3600 seconds.
+	//
+	// The DurationSeconds parameter is separate from the duration of a console
+	// session that you might request using the returned credentials. The request
+	// to the federation endpoint for a console sign-in token takes a SessionDuration
+	// parameter that specifies the maximum length of the console session. For more
+	// information, see Creating a URL that Enables Federated Users to Access the
+	// AWS Management Console (http://docs.aws.amazon.com/IAM/latest/UserGuide/id_roles_providers_enable-console-custom-url.html)
 	// in the IAM User Guide.
 	DurationSeconds *int64 `min:"900" type:"integer"`
 
@@ -1436,7 +1482,6 @@ func (s *AssumeRoleWithSAMLInput) SetSAMLAssertion(v string) *AssumeRoleWithSAML
 
 // Contains the response to a successful AssumeRoleWithSAML request, including
 // temporary AWS credentials that can be used to make AWS requests.
-// Please also see https://docs.aws.amazon.com/goto/WebAPI/sts-2011-06-15/AssumeRoleWithSAMLResponse
 type AssumeRoleWithSAMLOutput struct {
 	_ struct{} `type:"structure"`
 
@@ -1548,20 +1593,27 @@ func (s *AssumeRoleWithSAMLOutput) SetSubjectType(v string) *AssumeRoleWithSAMLO
 	return s
 }
 
-// Please also see https://docs.aws.amazon.com/goto/WebAPI/sts-2011-06-15/AssumeRoleWithWebIdentityRequest
 type AssumeRoleWithWebIdentityInput struct {
 	_ struct{} `type:"structure"`
 
 	// The duration, in seconds, of the role session. The value can range from 900
-	// seconds (15 minutes) to 3600 seconds (1 hour). By default, the value is set
-	// to 3600 seconds.
+	// seconds (15 minutes) up to the maximum session duration setting for the role.
+	// This setting can have a value from 1 hour to 12 hours. If you specify a value
+	// higher than this setting, the operation fails. For example, if you specify
+	// a session duration of 12 hours, but your administrator set the maximum session
+	// duration to 6 hours, your operation fails. To learn how to view the maximum
+	// value for your role, see View the Maximum Session Duration Setting for a
+	// Role (http://docs.aws.amazon.com/IAM/latest/UserGuide/id_roles_use.html#id_roles_use_view-role-max-session)
+	// in the IAM User Guide.
 	//
-	// This is separate from the duration of a console session that you might request
-	// using the returned credentials. The request to the federation endpoint for
-	// a console sign-in token takes a SessionDuration parameter that specifies
-	// the maximum length of the console session, separately from the DurationSeconds
-	// parameter on this API. For more information, see Creating a URL that Enables
-	// Federated Users to Access the AWS Management Console (http://docs.aws.amazon.com/IAM/latest/UserGuide/id_roles_providers_enable-console-custom-url.html)
+	// By default, the value is set to 3600 seconds.
+	//
+	// The DurationSeconds parameter is separate from the duration of a console
+	// session that you might request using the returned credentials. The request
+	// to the federation endpoint for a console sign-in token takes a SessionDuration
+	// parameter that specifies the maximum length of the console session. For more
+	// information, see Creating a URL that Enables Federated Users to Access the
+	// AWS Management Console (http://docs.aws.amazon.com/IAM/latest/UserGuide/id_roles_providers_enable-console-custom-url.html)
 	// in the IAM User Guide.
 	DurationSeconds *int64 `min:"900" type:"integer"`
 
@@ -1711,7 +1763,6 @@ func (s *AssumeRoleWithWebIdentityInput) SetWebIdentityToken(v string) *AssumeRo
 
 // Contains the response to a successful AssumeRoleWithWebIdentity request,
 // including temporary AWS credentials that can be used to make AWS requests.
-// Please also see https://docs.aws.amazon.com/goto/WebAPI/sts-2011-06-15/AssumeRoleWithWebIdentityResponse
 type AssumeRoleWithWebIdentityOutput struct {
 	_ struct{} `type:"structure"`
 
@@ -1804,7 +1855,6 @@ func (s *AssumeRoleWithWebIdentityOutput) SetSubjectFromWebIdentityToken(v strin
 
 // The identifiers for the temporary security credentials that the operation
 // returns.
-// Please also see https://docs.aws.amazon.com/goto/WebAPI/sts-2011-06-15/AssumedRoleUser
 type AssumedRoleUser struct {
 	_ struct{} `type:"structure"`
 
@@ -1847,7 +1897,6 @@ func (s *AssumedRoleUser) SetAssumedRoleId(v string) *AssumedRoleUser {
 }
 
 // AWS credentials for API authentication.
-// Please also see https://docs.aws.amazon.com/goto/WebAPI/sts-2011-06-15/Credentials
 type Credentials struct {
 	_ struct{} `type:"structure"`
 
@@ -1859,7 +1908,7 @@ type Credentials struct {
 	// The date on which the current credentials expire.
 	//
 	// Expiration is a required field
-	Expiration *time.Time `type:"timestamp" timestampFormat:"iso8601" required:"true"`
+	Expiration *time.Time `type:"timestamp" required:"true"`
 
 	// The secret access key that can be used to sign requests.
 	//
@@ -1906,7 +1955,6 @@ func (s *Credentials) SetSessionToken(v string) *Credentials {
 	return s
 }
 
-// Please also see https://docs.aws.amazon.com/goto/WebAPI/sts-2011-06-15/DecodeAuthorizationMessageRequest
 type DecodeAuthorizationMessageInput struct {
 	_ struct{} `type:"structure"`
 
@@ -1951,7 +1999,6 @@ func (s *DecodeAuthorizationMessageInput) SetEncodedMessage(v string) *DecodeAut
 // A document that contains additional information about the authorization status
 // of a request from an encoded message that is returned in response to an AWS
 // request.
-// Please also see https://docs.aws.amazon.com/goto/WebAPI/sts-2011-06-15/DecodeAuthorizationMessageResponse
 type DecodeAuthorizationMessageOutput struct {
 	_ struct{} `type:"structure"`
 
@@ -1976,7 +2023,6 @@ func (s *DecodeAuthorizationMessageOutput) SetDecodedMessage(v string) *DecodeAu
 }
 
 // Identifiers for the federated user that is associated with the credentials.
-// Please also see https://docs.aws.amazon.com/goto/WebAPI/sts-2011-06-15/FederatedUser
 type FederatedUser struct {
 	_ struct{} `type:"structure"`
 
@@ -2017,7 +2063,6 @@ func (s *FederatedUser) SetFederatedUserId(v string) *FederatedUser {
 	return s
 }
 
-// Please also see https://docs.aws.amazon.com/goto/WebAPI/sts-2011-06-15/GetCallerIdentityRequest
 type GetCallerIdentityInput struct {
 	_ struct{} `type:"structure"`
 }
@@ -2034,7 +2079,6 @@ func (s GetCallerIdentityInput) GoString() string {
 
 // Contains the response to a successful GetCallerIdentity request, including
 // information about the entity making the request.
-// Please also see https://docs.aws.amazon.com/goto/WebAPI/sts-2011-06-15/GetCallerIdentityResponse
 type GetCallerIdentityOutput struct {
 	_ struct{} `type:"structure"`
 
@@ -2080,7 +2124,6 @@ func (s *GetCallerIdentityOutput) SetUserId(v string) *GetCallerIdentityOutput {
 	return s
 }
 
-// Please also see https://docs.aws.amazon.com/goto/WebAPI/sts-2011-06-15/GetFederationTokenRequest
 type GetFederationTokenInput struct {
 	_ struct{} `type:"structure"`
 
@@ -2189,7 +2232,6 @@ func (s *GetFederationTokenInput) SetPolicy(v string) *GetFederationTokenInput {
 
 // Contains the response to a successful GetFederationToken request, including
 // temporary AWS credentials that can be used to make AWS requests.
-// Please also see https://docs.aws.amazon.com/goto/WebAPI/sts-2011-06-15/GetFederationTokenResponse
 type GetFederationTokenOutput struct {
 	_ struct{} `type:"structure"`
 
@@ -2242,7 +2284,6 @@ func (s *GetFederationTokenOutput) SetPackedPolicySize(v int64) *GetFederationTo
 	return s
 }
 
-// Please also see https://docs.aws.amazon.com/goto/WebAPI/sts-2011-06-15/GetSessionTokenRequest
 type GetSessionTokenInput struct {
 	_ struct{} `type:"structure"`
 
@@ -2327,7 +2368,6 @@ func (s *GetSessionTokenInput) SetTokenCode(v string) *GetSessionTokenInput {
 
 // Contains the response to a successful GetSessionToken request, including
 // temporary AWS credentials that can be used to make AWS requests.
-// Please also see https://docs.aws.amazon.com/goto/WebAPI/sts-2011-06-15/GetSessionTokenResponse
 type GetSessionTokenOutput struct {
 	_ struct{} `type:"structure"`
 

vendor/github.com/aws/aws-sdk-go/service/sts/service.go

@@ -29,8 +29,9 @@ var initRequest func(*request.Request)
 
 // Service information constants
 const (
-	ServiceName = "sts"       // Service endpoint prefix API calls made to.
-	EndpointsID = ServiceName // Service ID for Regions and Endpoints metadata.
+	ServiceName = "sts"       // Name of service.
+	EndpointsID = ServiceName // ID to lookup a service endpoint with.
+	ServiceID   = "STS"       // ServiceID is a unique identifer of a specific service.
 )
 
 // New creates a new instance of the STS client with a session.
@@ -55,6 +56,7 @@ func newClient(cfg aws.Config, handlers request.Handlers, endpoint, signingRegio
 			cfg,
 			metadata.ClientInfo{
 				ServiceName:   ServiceName,
+				ServiceID:     ServiceID,
 				SigningName:   signingName,
 				SigningRegion: signingRegion,
 				Endpoint:      endpoint,