Add route53 plugin (#1390)

* Update vendor
Signed-off-by: Yong Tang <yong.tang.github@outlook.com>

* Add route53 plugin

This fix adds route53 plugin so that it is possible to
query route53 record through CoreDNS.
Signed-off-by: Yong Tang <yong.tang.github@outlook.com>

Gopkg.lock

@@ -25,6 +25,39 @@
   revision = "327ebb6c2b6df8bf075da02ef45a2a034e9b79ba"
   version = "0.11.0"
 
+[[projects]]
+  name = "github.com/aws/aws-sdk-go"
+  packages = [
+    "aws",
+    "aws/awserr",
+    "aws/awsutil",
+    "aws/client",
+    "aws/client/metadata",
+    "aws/corehandlers",
+    "aws/credentials",
+    "aws/credentials/ec2rolecreds",
+    "aws/credentials/endpointcreds",
+    "aws/credentials/stscreds",
+    "aws/defaults",
+    "aws/ec2metadata",
+    "aws/endpoints",
+    "aws/request",
+    "aws/session",
+    "aws/signer/v4",
+    "internal/shareddefaults",
+    "private/protocol",
+    "private/protocol/query",
+    "private/protocol/query/queryutil",
+    "private/protocol/rest",
+    "private/protocol/restxml",
+    "private/protocol/xml/xmlutil",
+    "service/route53",
+    "service/route53/route53iface",
+    "service/sts"
+  ]
+  revision = "0cebc639926eb91b0192dae4b28bc808417e764c"
+  version = "v1.12.61"
+
 [[projects]]
   name = "github.com/coreos/etcd"
   packages = [
@@ -34,8 +67,8 @@
     "pkg/types",
     "version"
   ]
-  revision = "8c43bc2c1ea98b535b652426a9b0f4344fcbda68"
-  version = "v3.2.13"
+  revision = "fb5cd6f1c72c2b98e0c4453444cdfba306da867b"
+  version = "v3.2.14"
 
 [[projects]]
   name = "github.com/coreos/go-semver"
@@ -79,8 +112,8 @@
     ".",
     "log"
   ]
-  revision = "5741799b275a3c4a5a9623a993576d7545cf7b5c"
-  version = "v2.4.0"
+  revision = "2dd44038f0b95ae693b266c5f87593b5d2fdd78d"
+  version = "v2.5.0"
 
 [[projects]]
   branch = "master"
@@ -94,6 +127,12 @@
   revision = "0ca9ea5df5451ffdf184b4428c902747c2c11cd7"
   version = "v1.0.0"
 
+[[projects]]
+  name = "github.com/go-ini/ini"
+  packages = ["."]
+  revision = "32e4c1e6bc4e7d0d8451aa6b75200d19e37a536a"
+  version = "v1.32.0"
+
 [[projects]]
   name = "github.com/go-logfmt/logfmt"
   packages = ["."]
@@ -122,7 +161,7 @@
   branch = "master"
   name = "github.com/go-openapi/swag"
   packages = ["."]
-  revision = "cf0bdb963811675a4d7e74901cefc7411a1df939"
+  revision = "84f4bee7c0a6db40e3166044c7983c1c32125429"
 
 [[projects]]
   name = "github.com/gogo/protobuf"
@@ -212,8 +251,13 @@
 [[projects]]
   name = "github.com/imdario/mergo"
   packages = ["."]
-  revision = "7fe0c75c13abdee74b09fcacef5ea1c6bba6a874"
-  version = "0.2.4"
+  revision = "f1ac5984e69fed03e0574a92f70c59f132616ea2"
+  version = "0.3.0"
+
+[[projects]]
+  name = "github.com/jmespath/go-jmespath"
+  packages = ["."]
+  revision = "0b12d6b5"
 
 [[projects]]
   name = "github.com/json-iterator/go"
@@ -316,7 +360,7 @@
     "internal/bitbucket.org/ww/goautoneg",
     "model"
   ]
-  revision = "2e54d0b93cba2fd133edc32211dcc32c06ef72ca"
+  revision = "89604d197083d4781071d3c65855d24ecfb0a563"
 
 [[projects]]
   branch = "master"
@@ -339,7 +383,7 @@
   branch = "master"
   name = "golang.org/x/crypto"
   packages = ["ssh/terminal"]
-  revision = "0fcca4842a8d74bfddc2c96a073bd2a4d2a7a2e8"
+  revision = "13931e22f9e72ea58bb73048bc752b48c6d4d4ac"
 
 [[projects]]
   branch = "master"
@@ -348,7 +392,7 @@
     "unix",
     "windows"
   ]
-  revision = "83801418e1b59fb1880e363299581ee543af32ca"
+  revision = "810d7000345868fc619eb81f46307107118f4ae1"
 
 [[projects]]
   branch = "master"
@@ -375,6 +419,7 @@
   packages = [
     ".",
     "balancer",
+    "balancer/base",
     "balancer/roundrobin",
     "codes",
     "connectivity",
@@ -395,8 +440,8 @@
     "tap",
     "transport"
   ]
-  revision = "e687fa4e6424368ece6e4fe727cea2c806a0fcb4"
-  version = "v1.8.2"
+  revision = "7cea4cc846bcf00cbb27595b07da5de875ef7de9"
+  version = "v1.9.1"
 
 [[projects]]
   name = "gopkg.in/inf.v0"
@@ -408,7 +453,7 @@
   branch = "v2"
   name = "gopkg.in/yaml.v2"
   packages = ["."]
-  revision = "c95af922eae69f190717a0b7148960af8c55a072"
+  revision = "d670f9405373e636a5a2765eea47fac0c9bc91a4"
 
 [[projects]]
   name = "k8s.io/api"
@@ -548,11 +593,11 @@
   branch = "master"
   name = "k8s.io/kube-openapi"
   packages = ["pkg/common"]
-  revision = "b16ebc07f5cad97831f961e4b5a9cc1caed33b7e"
+  revision = "a07b7bbb58e7fdc5144f8d7046331d29fc9ad3b3"
 
 [solve-meta]
   analyzer-name = "dep"
   analyzer-version = 1
-  inputs-digest = "4aeebd6b2fe24acde2f69a5dc347ba7ebead910ac1c3455a0656c00724c9b1be"
+  inputs-digest = "eb43278f9f3825b0fa2ba07fd7ecd66fa9741b62bb276f7246db83bc53a39d84"
   solver-name = "gps-cdcl"
   solver-version = 1

core/dnsserver/zdirectives.go

@@ -31,6 +31,7 @@ var Directives = []string{
 	"reverse",
 	"template",
 	"hosts",
+	"route53",
 	"federation",
 	"kubernetes",
 	"file",

core/zplugin.go

@@ -29,6 +29,7 @@ import (
 	_ "github.com/coredns/coredns/plugin/reverse"
 	_ "github.com/coredns/coredns/plugin/rewrite"
 	_ "github.com/coredns/coredns/plugin/root"
+	_ "github.com/coredns/coredns/plugin/route53"
 	_ "github.com/coredns/coredns/plugin/secondary"
 	_ "github.com/coredns/coredns/plugin/template"
 	_ "github.com/coredns/coredns/plugin/tls"

plugin.cfg

@@ -40,6 +40,7 @@ autopath:autopath
 reverse:reverse
 template:template
 hosts:hosts
+route53:route53
 federation:federation
 kubernetes:kubernetes
 file:file

plugin/route53/README.md

+# route53
+
+## Name
+
+*route53* - enables serving zone data from AWS route53.
+
+## Description
+
+The hosts plugin is useful for serving zones from resource record sets in AWS route53.
+This plugin only supports A and AAAA records. The route53 plugin can be used when
+coredns is deployed on AWS.
+
+## Syntax
+
+~~~ txt
+route53 [ZONE:HOSTED_ZONE_ID...] {
+    [aws_access_key AWS_ACCESS_KEY_ID AWS_SECRET_ACCESS_KEY]
+}
+~~~
+
+* **ZONE** the name of the domain to be accessed.
+* **HOSTED_ZONE_ID** the ID of the hosted zone that contains the resource record sets to be accessed.
+* **AWS_ACCESS_KEY_ID** and **AWS_SECRET_ACCESS_KEY** the AWS access key ID and secret access key
+   to be used when query AWS (optional).  If they are not provided, then coredns tries to access
+   AWS credentials the same way as AWS CLI, e.g., environmental variables, AWS credentials file,
+   instance profile credentials, etc.
+
+## Examples
+
+Enable route53, with implicit aws credentials:
+
+~~~ txt
+. {
+    route53 example.org.:Z1Z2Z3Z4DZ5Z6Z7
+}
+~~~
+
+Enable route53, with explicit aws credentials:
+
+~~~ txt
+. {
+    route53 example.org.:Z1Z2Z3Z4DZ5Z6Z7 {
+      aws_access_key AWS_ACCESS_KEY_ID AWS_SECRET_ACCESS_KEY
+  }
+}
+~~~

plugin/route53/route53.go

+// Package route53 implements a plugin that returns resource records
+// from AWS route53
+package route53
+
+import (
+	"net"
+
+	"github.com/coredns/coredns/plugin"
+	"github.com/coredns/coredns/request"
+
+	"github.com/aws/aws-sdk-go/aws"
+	"github.com/aws/aws-sdk-go/service/route53"
+	"github.com/aws/aws-sdk-go/service/route53/route53iface"
+	"github.com/miekg/dns"
+	"golang.org/x/net/context"
+)
+
+// Route53 is a plugin that returns RR from AWS route53
+type Route53 struct {
+	Next plugin.Handler
+
+	zones  []string
+	keys   map[string]string
+	client route53iface.Route53API
+}
+
+// ServeDNS implements the plugin.Handler interface.
+func (rr Route53) ServeDNS(ctx context.Context, w dns.ResponseWriter, r *dns.Msg) (int, error) {
+	state := request.Request{W: w, Req: r}
+	qname := state.Name()
+
+	zone := plugin.Zones(rr.zones).Matches(qname)
+	if zone == "" {
+		return plugin.NextOrFailure(rr.Name(), rr.Next, ctx, w, r)
+	}
+
+	output, err := rr.client.ListResourceRecordSets(&route53.ListResourceRecordSetsInput{
+		HostedZoneId:    aws.String(rr.keys[zone]),
+		StartRecordName: aws.String(qname),
+		StartRecordType: aws.String(state.Type()),
+		MaxItems:        aws.String("1"),
+	})
+	if err != nil {
+		return dns.RcodeServerFailure, err
+	}
+
+	answers := []dns.RR{}
+	switch state.QType() {
+	case dns.TypeA:
+		answers = a(qname, output.ResourceRecordSets)
+	case dns.TypeAAAA:
+		answers = aaaa(qname, output.ResourceRecordSets)
+	}
+
+	if len(answers) == 0 {
+		return plugin.NextOrFailure(rr.Name(), rr.Next, ctx, w, r)
+	}
+
+	m := new(dns.Msg)
+	m.SetReply(r)
+	m.Authoritative, m.RecursionAvailable, m.Compress = true, true, true
+	m.Answer = answers
+
+	state.SizeAndDo(m)
+	m, _ = state.Scrub(m)
+	w.WriteMsg(m)
+	return dns.RcodeSuccess, nil
+}
+
+func a(zone string, rrss []*route53.ResourceRecordSet) []dns.RR {
+	answers := []dns.RR{}
+	for _, rrs := range rrss {
+		for _, rr := range rrs.ResourceRecords {
+			r := new(dns.A)
+			r.Hdr = dns.RR_Header{Name: zone, Rrtype: dns.TypeA, Class: dns.ClassINET, Ttl: uint32(aws.Int64Value(rrs.TTL))}
+			r.A = net.ParseIP(aws.StringValue(rr.Value)).To4()
+			answers = append(answers, r)
+		}
+	}
+	return answers
+}
+
+func aaaa(zone string, rrss []*route53.ResourceRecordSet) []dns.RR {
+	answers := []dns.RR{}
+	for _, rrs := range rrss {
+		for _, rr := range rrs.ResourceRecords {
+			r := new(dns.AAAA)
+			r.Hdr = dns.RR_Header{Name: zone, Rrtype: dns.TypeAAAA, Class: dns.ClassINET, Ttl: uint32(aws.Int64Value(rrs.TTL))}
+			r.AAAA = net.ParseIP(aws.StringValue(rr.Value)).To16()
+			answers = append(answers, r)
+		}
+	}
+	return answers
+}
+
+// Name implements the Handler interface.
+func (rr Route53) Name() string { return "route53" }

plugin/route53/route53_test.go

+package route53
+
+import (
+	"testing"
+
+	"github.com/coredns/coredns/plugin/pkg/dnstest"
+	"github.com/coredns/coredns/plugin/test"
+
+	"github.com/aws/aws-sdk-go/aws"
+	"github.com/aws/aws-sdk-go/service/route53"
+	"github.com/aws/aws-sdk-go/service/route53/route53iface"
+	"github.com/miekg/dns"
+	"golang.org/x/net/context"
+)
+
+type mockedRoute53 struct {
+	route53iface.Route53API
+}
+
+func (mockedRoute53) ListResourceRecordSets(input *route53.ListResourceRecordSetsInput) (*route53.ListResourceRecordSetsOutput, error) {
+	return &route53.ListResourceRecordSetsOutput{
+		ResourceRecordSets: []*route53.ResourceRecordSet{
+			{
+				ResourceRecords: []*route53.ResourceRecord{
+					{
+						Value: aws.String("10.2.3.4"),
+					},
+				},
+			},
+		},
+	}, nil
+}
+
+func TestRoute53(t *testing.T) {
+	r := Route53{
+		zones:  []string{"example.org."},
+		keys:   map[string]string{"example.org.": "1234567890"},
+		client: mockedRoute53{},
+	}
+
+	tests := []struct {
+		qname         string
+		qtype         uint16
+		expectedCode  int
+		expectedReply []string // ownernames for the records in the additional section.
+		expectedErr   error
+	}{
+		{
+			qname:         "example.org",
+			qtype:         dns.TypeA,
+			expectedCode:  dns.RcodeSuccess,
+			expectedReply: []string{"example.org."},
+			expectedErr:   nil,
+		},
+	}
+
+	ctx := context.TODO()
+
+	for i, tc := range tests {
+		req := new(dns.Msg)
+		req.SetQuestion(dns.Fqdn(tc.qname), tc.qtype)
+
+		rec := dnstest.NewRecorder(&test.ResponseWriter{})
+		code, err := r.ServeDNS(ctx, rec, req)
+
+		if err != tc.expectedErr {
+			t.Errorf("Test %d: Expected error %v, but got %v", i, tc.expectedErr, err)
+		}
+		if code != int(tc.expectedCode) {
+			t.Errorf("Test %d: Expected status code %d, but got %d", i, tc.expectedCode, code)
+		}
+		if len(tc.expectedReply) != 0 {
+			for i, expected := range tc.expectedReply {
+				actual := rec.Msg.Answer[i].Header().Name
+				if actual != expected {
+					t.Errorf("Test %d: Expected answer %s, but got %s", i, expected, actual)
+				}
+			}
+		}
+	}
+}

plugin/route53/setup.go

+package route53
+
+import (
+	"strings"
+
+	"github.com/coredns/coredns/core/dnsserver"
+	"github.com/coredns/coredns/plugin"
+
+	"github.com/aws/aws-sdk-go/aws"
+	"github.com/aws/aws-sdk-go/aws/credentials"
+	"github.com/aws/aws-sdk-go/aws/session"
+	"github.com/aws/aws-sdk-go/service/route53"
+	"github.com/aws/aws-sdk-go/service/route53/route53iface"
+	"github.com/mholt/caddy"
+)
+
+func init() {
+	caddy.RegisterPlugin("route53", caddy.Plugin{
+		ServerType: "dns",
+		Action: func(c *caddy.Controller) error {
+			f := func(credential *credentials.Credentials) route53iface.Route53API {
+				return route53.New(session.Must(session.NewSession(&aws.Config{
+					Credentials: credential,
+				})))
+			}
+			return setup(c, f)
+		},
+	})
+}
+
+func setup(c *caddy.Controller, f func(*credentials.Credentials) route53iface.Route53API) error {
+	keys := map[string]string{}
+	var credential *credentials.Credentials
+	for c.Next() {
+		args := c.RemainingArgs()
+
+		for i := 0; i < len(args); i++ {
+			parts := strings.SplitN(args[i], ":", 2)
+			if len(parts) != 2 {
+				return c.Errf("invalid zone '%s'", args[i])
+			}
+			if parts[0] == "" || parts[1] == "" {
+				return c.Errf("invalid zone '%s'", args[i])
+			}
+			zone := plugin.Host(parts[0]).Normalize()
+			if v, ok := keys[zone]; ok && v != parts[1] {
+				return c.Errf("conflict zone '%s' ('%s' vs. '%s')", zone, v, parts[1])
+			}
+			keys[zone] = parts[1]
+		}
+
+		for c.NextBlock() {
+			switch c.Val() {
+			case "aws_access_key":
+				v := c.RemainingArgs()
+				if len(v) < 2 {
+					return c.Errf("invalid access key '%v'", v)
+				}
+				credential = credentials.NewStaticCredentials(v[0], v[1], "")
+			default:
+				return c.Errf("unknown property '%s'", c.Val())
+			}
+		}
+	}
+	client := f(credential)
+	zones := []string{}
+	for zone, v := range keys {
+		// Make sure enough credentials is needed
+		if _, err := client.ListResourceRecordSets(&route53.ListResourceRecordSetsInput{
+			HostedZoneId: aws.String(v),
+			MaxItems:     aws.String("1"),
+		}); err != nil {
+			return c.Errf("aws error: '%s'", err)
+		}
+
+		zones = append(zones, zone)
+	}
+
+	dnsserver.GetConfig(c).AddPlugin(func(next plugin.Handler) plugin.Handler {
+		return Route53{
+			Next:   next,
+			keys:   keys,
+			zones:  zones,
+			client: client,
+		}
+	})
+
+	return nil
+}

plugin/route53/setup_test.go

+package route53
+
+import (
+	"testing"
+
+	"github.com/aws/aws-sdk-go/aws/credentials"
+	"github.com/aws/aws-sdk-go/service/route53/route53iface"
+	"github.com/mholt/caddy"
+)
+
+func TestSetupRoute53(t *testing.T) {
+	f := func(credential *credentials.Credentials) route53iface.Route53API {
+		return mockedRoute53{}
+	}
+
+	c := caddy.NewTestController("dns", `route53`)
+	if err := setup(c, f); err != nil {
+		t.Fatalf("Expected no errors, but got: %v", err)
+	}
+
+	c = caddy.NewTestController("dns", `route53 :`)
+	if err := setup(c, f); err == nil {
+		t.Fatalf("Expected errors, but got: %v", err)
+	}
+
+	c = caddy.NewTestController("dns", `route53 example.org:12345678`)
+	if err := setup(c, f); err != nil {
+		t.Fatalf("Expected no errors, but got: %v", err)
+	}
+
+	c = caddy.NewTestController("dns", `route53 example.org:12345678 {
+    aws_access_key
+}`)
+	if err := setup(c, f); err == nil {
+		t.Fatalf("Expected errors, but got: %v", err)
+	}
+}

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

+dist
+/doc
+/doc-staging
+.yardoc
+Gemfile.lock
+awstesting/integration/smoke/**/importmarker__.go
+awstesting/integration/smoke/_test/
+/vendor/bin/
+/vendor/pkg/
+/vendor/src/
+/private/model/cli/gen-api/gen-api

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

+{
+	"PkgHandler": {
+		"Pattern":          "/sdk-for-go/api/",
+		"StripPrefix":     "/sdk-for-go/api",
+		"Include":         ["/src/github.com/aws/aws-sdk-go/aws", "/src/github.com/aws/aws-sdk-go/service"],
+		"Exclude":         ["/src/cmd", "/src/github.com/aws/aws-sdk-go/awstesting", "/src/github.com/aws/aws-sdk-go/awsmigrate"],
+		"IgnoredSuffixes": ["iface"]
+	},
+	"Github": {
+		"Tag": "master",
+		"Repo": "/aws/aws-sdk-go",
+		"UseGithub": true
+	}
+}

vendor/github.com/aws/aws-sdk-go/.travis.yml

+language: go
+
+sudo: required
+
+go:
+  - 1.5.x
+  - 1.6.x
+  - 1.7.x
+  - 1.8.x
+  - 1.9.x
+  - tip
+    
+# Use Go 1.5's vendoring experiment for 1.5 tests.
+env:
+  - GO15VENDOREXPERIMENT=1
+
+install:
+  - make get-deps
+
+script:
+  - make unit-with-race-cover
+
+matrix:
+  allow_failures:
+    - go: tip
+
+branches:
+  only:
+    - master

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

+### SDK Features
+
+### SDK Enhancements
+
+### SDK Bugs

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

+Contributing to the AWS SDK for Go
+
+We work hard to provide a high-quality and useful SDK, and we greatly value
+feedback and contributions from our community. Whether it's a bug report,
+new feature, correction, or additional documentation, we welcome your issues
+and pull requests. Please read through this document before submitting any
+issues or pull requests to ensure we have all the necessary information to
+effectively respond to your bug report or contribution.
+
+
+## Filing Bug Reports
+
+You can file bug reports against the SDK on the [GitHub issues][issues] page.
+
+If you are filing a report for a bug or regression in the SDK, it's extremely
+helpful to provide as much information as possible when opening the original
+issue. This helps us reproduce and investigate the possible bug without having
+to wait for this extra information to be provided. Please read the following
+guidelines prior to filing a bug report.
+
+1. Search through existing [issues][] to ensure that your specific issue has
+   not yet been reported. If it is a common issue, it is likely there is
+   already a bug report for your problem.
+
+2. Ensure that you have tested the latest version of the SDK. Although you
+   may have an issue against an older version of the SDK, we cannot provide
+   bug fixes for old versions. It's also possible that the bug may have been
+   fixed in the latest release.
+
+3. Provide as much information about your environment, SDK version, and
+   relevant dependencies as possible. For example, let us know what version
+   of Go you are using, which and version of the operating system, and the
+   the environment your code is running in. e.g Container.
+
+4. Provide a minimal test case that reproduces your issue or any error
+   information you related to your problem. We can provide feedback much
+   more quickly if we know what operations you are calling in the SDK. If
+   you cannot provide a full test case, provide as much code as you can
+   to help us diagnose the problem. Any relevant information should be provided
+   as well, like whether this is a persistent issue, or if it only occurs
+   some of the time.
+
+
+## Submitting Pull Requests
+
+We are always happy to receive code and documentation contributions to the SDK.
+Please be aware of the following notes prior to opening a pull request:
+
+1. The SDK is released under the [Apache license][license]. Any code you submit
+   will be released under that license. For substantial contributions, we may
+   ask you to sign a [Contributor License Agreement (CLA)][cla].
+
+2. If you would like to implement support for a significant feature that is not
+   yet available in the SDK, please talk to us beforehand to avoid any
+   duplication of effort.
+
+3. Wherever possible, pull requests should contain tests as appropriate.
+   Bugfixes should contain tests that exercise the corrected behavior (i.e., the
+   test should fail without the bugfix and pass with it), and new features 
+   should be accompanied by tests exercising the feature.
+
+4. Pull requests that contain failing tests will not be merged until the test
+   failures are addressed. Pull requests that cause a significant drop in the
+   SDK's test coverage percentage are unlikely to be merged until tests have
+   been added.
+
+5. The JSON files under the SDK's `models` folder are sourced from outside the SDK.
+   Such as `models/apis/ec2/2016-11-15/api.json`. We will not accept pull requests
+   directly on these models. If you discover an issue with the models please
+   create a [GitHub issue][issues] describing the issue.
+
+### Testing
+
+To run the tests locally, running the `make unit` command will `go get` the 
+SDK's testing dependencies, and run vet, link and unit tests for the SDK.
+
+```
+make unit
+```
+
+Standard go testing functionality is supported as well. To test SDK code that
+is tagged with `codegen` you'll need to set the build tag in the go test
+command. The `make unit` command will do this automatically.
+
+```
+go test -tags codegen ./private/...
+```
+
+See the `Makefile` for additional testing tags that can be used in testing.
+
+To test on multiple platform the SDK includes several DockerFiles under the 
+`awstesting/sandbox` folder, and associated make recipes to to execute
+unit testing within environments configured for specific Go versions.
+
+```
+make sandbox-test-go18
+```
+
+To run all sandbox environments use the following make recipe
+
+```
+# Optionally update the Go tip that will be used during the batch testing
+make update-aws-golang-tip
+
+# Run all SDK tests for supported Go versions in sandboxes
+make sandbox-test
+```
+
+In addition the sandbox environment include make recipes for interactive modes
+so you can run command within the Docker container and context of the SDK.
+
+```
+make sandbox-go18
+```
+
+### Changelog
+
+You can see all release changes in the `CHANGELOG.md` file at the root of the
+repository. The release notes added to this file will contain service client
+updates, and major SDK changes.
+
+[issues]: https://github.com/aws/aws-sdk-go/issues
+[pr]: https://github.com/aws/aws-sdk-go/pulls
+[license]: http://aws.amazon.com/apache2.0/
+[cla]: http://en.wikipedia.org/wiki/Contributor_License_Agreement
+[releasenotes]: https://github.com/aws/aws-sdk-go/releases
+

vendor/github.com/aws/aws-sdk-go/Gopkg.lock

+# This file is autogenerated, do not edit; changes may be undone by the next 'dep ensure'.
+
+
+[[projects]]
+  name = "github.com/go-ini/ini"
+  packages = ["."]
+  revision = "300e940a926eb277d3901b20bdfcc54928ad3642"
+  version = "v1.25.4"
+
+[[projects]]
+  name = "github.com/jmespath/go-jmespath"
+  packages = ["."]
+  revision = "0b12d6b5"
+
+[solve-meta]
+  analyzer-name = "dep"
+  analyzer-version = 1
+  inputs-digest = "51a86a867df617990082dec6b868e4efe2fdb2ed0e02a3daa93cd30f962b5085"
+  solver-name = "gps-cdcl"
+  solver-version = 1

vendor/github.com/aws/aws-sdk-go/Gopkg.toml

+
+# Gopkg.toml example
+#
+# Refer to https://github.com/golang/dep/blob/master/docs/Gopkg.toml.md
+# for detailed Gopkg.toml documentation.
+#
+# required = ["github.com/user/thing/cmd/thing"]
+# ignored = ["github.com/user/project/pkgX", "bitbucket.org/user/project/pkgA/pkgY"]
+#
+# [[constraint]]
+#   name = "github.com/user/project"
+#   version = "1.0.0"
+#
+# [[constraint]]
+#   name = "github.com/user/project2"
+#   branch = "dev"
+#   source = "github.com/myfork/project2"
+#
+# [[override]]
+#  name = "github.com/x/y"
+#  version = "2.4.0"
+
+ignored = [
+	# Testing/Example/Codegen dependencies
+	"github.com/stretchr/testify",
+	"github.com/stretchr/testify/assert",
+	"github.com/stretchr/testify/require",
+	"github.com/go-sql-driver/mysql",
+	"github.com/gucumber/gucumber",
+	"github.com/pkg/errors",
+	"golang.org/x/net",
+	"golang.org/x/net/html",
+	"golang.org/x/net/http2",
+	"golang.org/x/text",
+	"golang.org/x/text/html",
+	"golang.org/x/tools",
+	"golang.org/x/tools/go/loader",
+]
+
+
+[[constraint]]
+  name = "github.com/go-ini/ini"
+  version = "1.25.4"
+
+[[constraint]]
+  name = "github.com/jmespath/go-jmespath"
+  revision = "0b12d6b5"
+  #version = "0.2.2"

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

+LINTIGNOREDOT='awstesting/integration.+should not use dot imports'
+LINTIGNOREDOC='service/[^/]+/(api|service|waiters)\.go:.+(comment on exported|should have comment or be unexported)'
+LINTIGNORECONST='service/[^/]+/(api|service|waiters)\.go:.+(type|struct field|const|func) ([^ ]+) should be ([^ ]+)'
+LINTIGNORESTUTTER='service/[^/]+/(api|service)\.go:.+(and that stutters)'
+LINTIGNOREINFLECT='service/[^/]+/(api|errors|service)\.go:.+(method|const) .+ should be '
+LINTIGNOREINFLECTS3UPLOAD='service/s3/s3manager/upload\.go:.+struct field SSEKMSKeyId should be '
+LINTIGNOREDEPS='vendor/.+\.go'
+LINTIGNOREPKGCOMMENT='service/[^/]+/doc_custom.go:.+package comment should be of the form'
+UNIT_TEST_TAGS="example codegen awsinclude"
+
+SDK_WITH_VENDOR_PKGS=$(shell go list -tags ${UNIT_TEST_TAGS} ./... | grep -v "/vendor/src")
+SDK_ONLY_PKGS=$(shell go list ./... | grep -v "/vendor/")
+SDK_UNIT_TEST_ONLY_PKGS=$(shell go list -tags ${UNIT_TEST_TAGS} ./... | grep -v "/vendor/")
+SDK_GO_1_4=$(shell go version | grep "go1.4")
+SDK_GO_1_5=$(shell go version | grep "go1.5")
+SDK_GO_VERSION=$(shell go version | awk '''{print $$3}''' | tr -d '''\n''')
+
+all: get-deps generate unit
+
+help:
+	@echo "Please use \`make <target>' where <target> is one of"
+	@echo "  api_info                to print a list of services and versions"
+	@echo "  docs                    to build SDK documentation"
+	@echo "  build                   to go build the SDK"
+	@echo "  unit                    to run unit tests"
+	@echo "  integration             to run integration tests"
+	@echo "  performance             to run performance tests"
+	@echo "  verify                  to verify tests"
+	@echo "  lint                    to lint the SDK"
+	@echo "  vet                     to vet the SDK"
+	@echo "  generate                to go generate and make services"
+	@echo "  gen-test                to generate protocol tests"
+	@echo "  gen-services            to generate services"
+	@echo "  get-deps                to go get the SDK dependencies"
+	@echo "  get-deps-tests          to get the SDK's test dependencies"
+	@echo "  get-deps-verify         to get the SDK's verification dependencies"
+
+generate: gen-test gen-endpoints gen-services
+
+gen-test: gen-protocol-test
+
+gen-services:
+	go generate ./service
+
+gen-protocol-test:
+	go generate ./private/protocol/...
+
+gen-endpoints:
+	go generate ./models/endpoints/
+
+build:
+	@echo "go build SDK and vendor packages"
+	@go build ${SDK_ONLY_PKGS}
+
+unit: get-deps-tests build verify
+	@echo "go test SDK and vendor packages"
+	@go test -tags ${UNIT_TEST_TAGS} $(SDK_UNIT_TEST_ONLY_PKGS)
+
+unit-with-race-cover: get-deps-tests build verify
+	@echo "go test SDK and vendor packages"
+	@go test -tags ${UNIT_TEST_TAGS} -race -cpu=1,2,4 $(SDK_UNIT_TEST_ONLY_PKGS)
+
+integration: get-deps-tests integ-custom smoke-tests performance
+
+integ-custom:
+	go test -tags "integration" ./awstesting/integration/customizations/...
+
+cleanup-integ:
+	go run -tags "integration" ./awstesting/cmd/bucket_cleanup/main.go "aws-sdk-go-integration"
+
+smoke-tests: get-deps-tests
+	gucumber -go-tags "integration" ./awstesting/integration/smoke
+
+performance: get-deps-tests
+	AWS_TESTING_LOG_RESULTS=${log-detailed} AWS_TESTING_REGION=$(region) AWS_TESTING_DB_TABLE=$(table) gucumber -go-tags "integration" ./awstesting/performance
+
+sandbox-tests: sandbox-test-go15 sandbox-test-go15-novendorexp sandbox-test-go16 sandbox-test-go17 sandbox-test-go18 sandbox-test-go19 sandbox-test-gotip
+
+sandbox-build-go15:
+	docker build -f ./awstesting/sandbox/Dockerfile.test.go1.5 -t "aws-sdk-go-1.5" .
+sandbox-go15: sandbox-build-go15
+	docker run -i -t aws-sdk-go-1.5 bash
+sandbox-test-go15: sandbox-build-go15
+	docker run -t aws-sdk-go-1.5
+
+sandbox-build-go15-novendorexp:
+	docker build -f ./awstesting/sandbox/Dockerfile.test.go1.5-novendorexp -t "aws-sdk-go-1.5-novendorexp" .
+sandbox-go15-novendorexp: sandbox-build-go15-novendorexp
+	docker run -i -t aws-sdk-go-1.5-novendorexp bash
+sandbox-test-go15-novendorexp: sandbox-build-go15-novendorexp
+	docker run -t aws-sdk-go-1.5-novendorexp
+
+sandbox-build-go16:
+	docker build -f ./awstesting/sandbox/Dockerfile.test.go1.6 -t "aws-sdk-go-1.6" .
+sandbox-go16: sandbox-build-go16
+	docker run -i -t aws-sdk-go-1.6 bash
+sandbox-test-go16: sandbox-build-go16
+	docker run -t aws-sdk-go-1.6
+
+sandbox-build-go17:
+	docker build -f ./awstesting/sandbox/Dockerfile.test.go1.7 -t "aws-sdk-go-1.7" .
+sandbox-go17: sandbox-build-go17
+	docker run -i -t aws-sdk-go-1.7 bash
+sandbox-test-go17: sandbox-build-go17
+	docker run -t aws-sdk-go-1.7
+
+sandbox-build-go18:
+	docker build -f ./awstesting/sandbox/Dockerfile.test.go1.8 -t "aws-sdk-go-1.8" .
+sandbox-go18: sandbox-build-go18
+	docker run -i -t aws-sdk-go-1.8 bash
+sandbox-test-go18: sandbox-build-go18
+	docker run -t aws-sdk-go-1.8
+
+sandbox-build-go19:
+	docker build -f ./awstesting/sandbox/Dockerfile.test.go1.8 -t "aws-sdk-go-1.9" .
+sandbox-go19: sandbox-build-go19
+	docker run -i -t aws-sdk-go-1.9 bash
+sandbox-test-go19: sandbox-build-go19
+	docker run -t aws-sdk-go-1.9
+
+sandbox-build-gotip:
+	@echo "Run make update-aws-golang-tip, if this test fails because missing aws-golang:tip container"
+	docker build -f ./awstesting/sandbox/Dockerfile.test.gotip -t "aws-sdk-go-tip" .
+sandbox-gotip: sandbox-build-gotip
+	docker run -i -t aws-sdk-go-tip bash
+sandbox-test-gotip: sandbox-build-gotip
+	docker run -t aws-sdk-go-tip
+
+update-aws-golang-tip:
+	docker build --no-cache=true -f ./awstesting/sandbox/Dockerfile.golang-tip -t "aws-golang:tip" .
+
+verify: get-deps-verify lint vet
+
+lint:
+	@echo "go lint SDK and vendor packages"
+	@lint=`if [ \( -z "${SDK_GO_1_4}" \) -a \( -z "${SDK_GO_1_5}" \) ]; then  golint ./...; else echo "skipping golint"; fi`; \
+	lint=`echo "$$lint" | grep -E -v -e ${LINTIGNOREDOT} -e ${LINTIGNOREDOC} -e ${LINTIGNORECONST} -e ${LINTIGNORESTUTTER} -e ${LINTIGNOREINFLECT} -e ${LINTIGNOREDEPS} -e ${LINTIGNOREINFLECTS3UPLOAD} -e ${LINTIGNOREPKGCOMMENT}`; \
+	echo "$$lint"; \
+	if [ "$$lint" != "" ] && [ "$$lint" != "skipping golint" ]; then exit 1; fi
+
+SDK_BASE_FOLDERS=$(shell ls -d */ | grep -v vendor | grep -v awsmigrate)
+ifneq (,$(findstring go1.4, ${SDK_GO_VERSION}))
+	GO_VET_CMD=echo skipping go vet, ${SDK_GO_VERSION}
+else ifneq (,$(findstring go1.6, ${SDK_GO_VERSION}))
+	GO_VET_CMD=go tool vet --all -shadow -example=false
+else
+	GO_VET_CMD=go tool vet --all -shadow
+endif
+
+vet:
+	${GO_VET_CMD} ${SDK_BASE_FOLDERS}
+
+get-deps: get-deps-tests get-deps-verify
+	@echo "go get SDK dependencies"
+	@go get -v $(SDK_ONLY_PKGS)
+
+get-deps-tests:
+	@echo "go get SDK testing dependencies"
+	go get github.com/gucumber/gucumber/cmd/gucumber
+	go get github.com/stretchr/testify
+	go get github.com/smartystreets/goconvey
+	go get golang.org/x/net/html
+	go get golang.org/x/net/http2
+
+get-deps-verify:
+	@echo "go get SDK verification utilities"
+	@if [ \( -z "${SDK_GO_1_4}" \) -a \( -z "${SDK_GO_1_5}" \) ]; then  go get github.com/golang/lint/golint; else echo "skipped getting golint"; fi
+
+bench:
+	@echo "go bench SDK packages"
+	@go test -run NONE -bench . -benchmem -tags 'bench' $(SDK_ONLY_PKGS)
+
+bench-protocol:
+	@echo "go bench SDK protocol marshallers"
+	@go test -run NONE -bench . -benchmem -tags 'bench' ./private/protocol/...
+
+docs:
+	@echo "generate SDK docs"
+	@# This env variable, DOCS, is for internal use
+	@if [ -z ${AWS_DOC_GEN_TOOL} ]; then\
+		rm -rf doc && bundle install && bundle exec yard;\
+	else\
+		$(AWS_DOC_GEN_TOOL) `pwd`;\
+	fi
+
+api_info:
+	@go run private/model/cli/api-info/api-info.go

vendor/github.com/aws/aws-sdk-go/NOTICE.txt

+AWS SDK for Go
+Copyright 2015 Amazon.com, Inc. or its affiliates. All Rights Reserved. 
+Copyright 2014-2015 Stripe, Inc.

vendor/github.com/aws/aws-sdk-go/aws/awserr/error.go

+// Package awserr represents API error interface accessors for the SDK.
+package awserr
+
+// An Error wraps lower level errors with code, message and an original error.
+// The underlying concrete error type may also satisfy other interfaces which
+// can be to used to obtain more specific information about the error.
+//
+// Calling Error() or String() will always include the full information about
+// an error based on its underlying type.
+//
+// Example:
+//
+//     output, err := s3manage.Upload(svc, input, opts)
+//     if err != nil {
+//         if awsErr, ok := err.(awserr.Error); ok {
+//             // Get error details
+//             log.Println("Error:", awsErr.Code(), awsErr.Message())
+//
+//             // Prints out full error message, including original error if there was one.
+//             log.Println("Error:", awsErr.Error())
+//
+//             // Get original error
+//             if origErr := awsErr.OrigErr(); origErr != nil {
+//                 // operate on original error.
+//             }
+//         } else {
+//             fmt.Println(err.Error())
+//         }
+//     }
+//
+type Error interface {
+	// Satisfy the generic error interface.
+	error
+
+	// Returns the short phrase depicting the classification of the error.
+	Code() string
+
+	// Returns the error details message.
+	Message() string
+
+	// Returns the original error if one was set.  Nil is returned if not set.
+	OrigErr() error
+}
+
+// BatchError is a batch of errors which also wraps lower level errors with
+// code, message, and original errors. Calling Error() will include all errors
+// that occurred in the batch.
+//
+// Deprecated: Replaced with BatchedErrors. Only defined for backwards
+// compatibility.
+type BatchError interface {
+	// Satisfy the generic error interface.
+	error
+
+	// Returns the short phrase depicting the classification of the error.
+	Code() string
+
+	// Returns the error details message.
+	Message() string
+
+	// Returns the original error if one was set.  Nil is returned if not set.
+	OrigErrs() []error
+}
+
+// BatchedErrors is a batch of errors which also wraps lower level errors with
+// code, message, and original errors. Calling Error() will include all errors
+// that occurred in the batch.
+//
+// Replaces BatchError
+type BatchedErrors interface {
+	// Satisfy the base Error interface.
+	Error
+
+	// Returns the original error if one was set.  Nil is returned if not set.
+	OrigErrs() []error
+}
+
+// New returns an Error object described by the code, message, and origErr.
+//
+// If origErr satisfies the Error interface it will not be wrapped within a new
+// Error object and will instead be returned.
+func New(code, message string, origErr error) Error {
+	var errs []error
+	if origErr != nil {
+		errs = append(errs, origErr)
+	}
+	return newBaseError(code, message, errs)
+}
+
+// NewBatchError returns an BatchedErrors with a collection of errors as an
+// array of errors.
+func NewBatchError(code, message string, errs []error) BatchedErrors {
+	return newBaseError(code, message, errs)
+}
+
+// A RequestFailure is an interface to extract request failure information from
+// an Error such as the request ID of the failed request returned by a service.
+// RequestFailures may not always have a requestID value if the request failed
+// prior to reaching the service such as a connection error.
+//
+// Example:
+//
+//     output, err := s3manage.Upload(svc, input, opts)
+//     if err != nil {
+//         if reqerr, ok := err.(RequestFailure); ok {
+//             log.Println("Request failed", reqerr.Code(), reqerr.Message(), reqerr.RequestID())
+//         } else {
+//             log.Println("Error:", err.Error())
+//         }
+//     }
+//
+// Combined with awserr.Error:
+//
+//    output, err := s3manage.Upload(svc, input, opts)
+//    if err != nil {
+//        if awsErr, ok := err.(awserr.Error); ok {
+//            // Generic AWS Error with Code, Message, and original error (if any)
+//            fmt.Println(awsErr.Code(), awsErr.Message(), awsErr.OrigErr())
+//
+//            if reqErr, ok := err.(awserr.RequestFailure); ok {
+//                // A service error occurred
+//                fmt.Println(reqErr.StatusCode(), reqErr.RequestID())
+//            }
+//        } else {
+//            fmt.Println(err.Error())
+//        }
+//    }
+//
+type RequestFailure interface {
+	Error
+
+	// The status code of the HTTP response.
+	StatusCode() int
+
+	// The request ID returned by the service for a request failure. This will
+	// be empty if no request ID is available such as the request failed due
+	// to a connection error.
+	RequestID() string
+}
+
+// NewRequestFailure returns a new request error wrapper for the given Error
+// provided.
+func NewRequestFailure(err Error, statusCode int, reqID string) RequestFailure {
+	return newRequestError(err, statusCode, reqID)
+}

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

+package awserr
+
+import "fmt"
+
+// SprintError returns a string of the formatted error code.
+//
+// Both extra and origErr are optional.  If they are included their lines
+// will be added, but if they are not included their lines will be ignored.
+func SprintError(code, message, extra string, origErr error) string {
+	msg := fmt.Sprintf("%s: %s", code, message)
+	if extra != "" {
+		msg = fmt.Sprintf("%s\n\t%s", msg, extra)
+	}
+	if origErr != nil {
+		msg = fmt.Sprintf("%s\ncaused by: %s", msg, origErr.Error())
+	}
+	return msg
+}
+
+// A baseError wraps the code and message which defines an error. It also
+// can be used to wrap an original error object.
+//
+// Should be used as the root for errors satisfying the awserr.Error. Also
+// for any error which does not fit into a specific error wrapper type.
+type baseError struct {
+	// Classification of error
+	code string
+
+	// Detailed information about error
+	message string
+
+	// Optional original error this error is based off of. Allows building
+	// chained errors.
+	errs []error
+}
+
+// newBaseError returns an error object for the code, message, and errors.
+//
+// code is a short no whitespace phrase depicting the classification of
+// the error that is being created.
+//
+// message is the free flow string containing detailed information about the
+// error.
+//
+// origErrs is the error objects which will be nested under the new errors to
+// be returned.
+func newBaseError(code, message string, origErrs []error) *baseError {
+	b := &baseError{
+		code:    code,
+		message: message,
+		errs:    origErrs,
+	}
+
+	return b
+}
+
+// Error returns the string representation of the error.
+//
+// See ErrorWithExtra for formatting.
+//
+// Satisfies the error interface.
+func (b baseError) Error() string {
+	size := len(b.errs)
+	if size > 0 {
+		return SprintError(b.code, b.message, "", errorList(b.errs))
+	}
+
+	return SprintError(b.code, b.message, "", nil)
+}
+
+// String returns the string representation of the error.
+// Alias for Error to satisfy the stringer interface.
+func (b baseError) String() string {
+	return b.Error()
+}
+
+// Code returns the short phrase depicting the classification of the error.
+func (b baseError) Code() string {
+	return b.code
+}
+
+// Message returns the error details message.
+func (b baseError) Message() string {
+	return b.message
+}
+
+// OrigErr returns the original error if one was set. Nil is returned if no
+// error was set. This only returns the first element in the list. If the full
+// list is needed, use BatchedErrors.
+func (b baseError) OrigErr() error {
+	switch len(b.errs) {
+	case 0:
+		return nil
+	case 1:
+		return b.errs[0]
+	default:
+		if err, ok := b.errs[0].(Error); ok {
+			return NewBatchError(err.Code(), err.Message(), b.errs[1:])
+		}
+		return NewBatchError("BatchedErrors",
+			"multiple errors occurred", b.errs)
+	}
+}
+
+// OrigErrs returns the original errors if one was set. An empty slice is
+// returned if no error was set.
+func (b baseError) OrigErrs() []error {
+	return b.errs
+}
+
+// So that the Error interface type can be included as an anonymous field
+// in the requestError struct and not conflict with the error.Error() method.
+type awsError Error
+
+// A requestError wraps a request or service error.
+//
+// Composed of baseError for code, message, and original error.
+type requestError struct {
+	awsError
+	statusCode int
+	requestID  string
+}
+
+// newRequestError returns a wrapped error with additional information for
+// request status code, and service requestID.
+//
+// Should be used to wrap all request which involve service requests. Even if
+// the request failed without a service response, but had an HTTP status code
+// that may be meaningful.
+//
+// Also wraps original errors via the baseError.
+func newRequestError(err Error, statusCode int, requestID string) *requestError {
+	return &requestError{
+		awsError:   err,
+		statusCode: statusCode,
+		requestID:  requestID,
+	}
+}
+
+// Error returns the string representation of the error.
+// Satisfies the error interface.
+func (r requestError) Error() string {
+	extra := fmt.Sprintf("status code: %d, request id: %s",
+		r.statusCode, r.requestID)
+	return SprintError(r.Code(), r.Message(), extra, r.OrigErr())
+}
+
+// String returns the string representation of the error.
+// Alias for Error to satisfy the stringer interface.
+func (r requestError) String() string {
+	return r.Error()
+}
+
+// StatusCode returns the wrapped status code for the error
+func (r requestError) StatusCode() int {
+	return r.statusCode
+}
+
+// RequestID returns the wrapped requestID
+func (r requestError) RequestID() string {
+	return r.requestID
+}
+
+// OrigErrs returns the original errors if one was set. An empty slice is
+// returned if no error was set.
+func (r requestError) OrigErrs() []error {
+	if b, ok := r.awsError.(BatchedErrors); ok {
+		return b.OrigErrs()
+	}
+	return []error{r.OrigErr()}
+}
+
+// An error list that satisfies the golang interface
+type errorList []error
+
+// Error returns the string representation of the error.
+//
+// Satisfies the error interface.
+func (e errorList) Error() string {
+	msg := ""
+	// How do we want to handle the array size being zero
+	if size := len(e); size > 0 {
+		for i := 0; i < size; i++ {
+			msg += fmt.Sprintf("%s", e[i].Error())
+			// We check the next index to see if it is within the slice.
+			// If it is, then we append a newline. We do this, because unit tests
+			// could be broken with the additional '\n'
+			if i+1 < size {
+				msg += "\n"
+			}
+		}
+	}
+	return msg
+}

vendor/github.com/aws/aws-sdk-go/aws/awsutil/copy.go

+package awsutil
+
+import (
+	"io"
+	"reflect"
+	"time"
+)
+
+// Copy deeply copies a src structure to dst. Useful for copying request and
+// response structures.
+//
+// Can copy between structs of different type, but will only copy fields which
+// are assignable, and exist in both structs. Fields which are not assignable,
+// or do not exist in both structs are ignored.
+func Copy(dst, src interface{}) {
+	dstval := reflect.ValueOf(dst)
+	if !dstval.IsValid() {
+		panic("Copy dst cannot be nil")
+	}
+
+	rcopy(dstval, reflect.ValueOf(src), true)
+}
+
+// CopyOf returns a copy of src while also allocating the memory for dst.
+// src must be a pointer type or this operation will fail.
+func CopyOf(src interface{}) (dst interface{}) {
+	dsti := reflect.New(reflect.TypeOf(src).Elem())
+	dst = dsti.Interface()
+	rcopy(dsti, reflect.ValueOf(src), true)
+	return
+}
+
+// rcopy performs a recursive copy of values from the source to destination.
+//
+// root is used to skip certain aspects of the copy which are not valid
+// for the root node of a object.
+func rcopy(dst, src reflect.Value, root bool) {
+	if !src.IsValid() {
+		return
+	}
+
+	switch src.Kind() {
+	case reflect.Ptr:
+		if _, ok := src.Interface().(io.Reader); ok {
+			if dst.Kind() == reflect.Ptr && dst.Elem().CanSet() {
+				dst.Elem().Set(src)
+			} else if dst.CanSet() {
+				dst.Set(src)
+			}
+		} else {
+			e := src.Type().Elem()
+			if dst.CanSet() && !src.IsNil() {
+				if _, ok := src.Interface().(*time.Time); !ok {
+					dst.Set(reflect.New(e))
+				} else {
+					tempValue := reflect.New(e)
+					tempValue.Elem().Set(src.Elem())
+					// Sets time.Time's unexported values
+					dst.Set(tempValue)
+				}
+			}
+			if src.Elem().IsValid() {
+				// Keep the current root state since the depth hasn't changed
+				rcopy(dst.Elem(), src.Elem(), root)
+			}
+		}
+	case reflect.Struct:
+		t := dst.Type()
+		for i := 0; i < t.NumField(); i++ {
+			name := t.Field(i).Name
+			srcVal := src.FieldByName(name)
+			dstVal := dst.FieldByName(name)
+			if srcVal.IsValid() && dstVal.CanSet() {
+				rcopy(dstVal, srcVal, false)
+			}
+		}
+	case reflect.Slice:
+		if src.IsNil() {
+			break
+		}
+
+		s := reflect.MakeSlice(src.Type(), src.Len(), src.Cap())
+		dst.Set(s)
+		for i := 0; i < src.Len(); i++ {
+			rcopy(dst.Index(i), src.Index(i), false)
+		}
+	case reflect.Map:
+		if src.IsNil() {
+			break
+		}
+
+		s := reflect.MakeMap(src.Type())
+		dst.Set(s)
+		for _, k := range src.MapKeys() {
+			v := src.MapIndex(k)
+			v2 := reflect.New(v.Type()).Elem()
+			rcopy(v2, v, false)
+			dst.SetMapIndex(k, v2)
+		}
+	default:
+		// Assign the value if possible. If its not assignable, the value would
+		// need to be converted and the impact of that may be unexpected, or is
+		// not compatible with the dst type.
+		if src.Type().AssignableTo(dst.Type()) {
+			dst.Set(src)
+		}
+	}
+}

vendor/github.com/aws/aws-sdk-go/aws/awsutil/copy_test.go

+package awsutil_test
+
+import (
+	"bytes"
+	"fmt"
+	"io"
+	"io/ioutil"
+	"reflect"
+	"testing"
+	"time"
+
+	"github.com/aws/aws-sdk-go/aws/awsutil"
+)
+
+func ExampleCopy() {
+	type Foo struct {
+		A int
+		B []*string
+	}
+
+	// Create the initial value
+	str1 := "hello"
+	str2 := "bye bye"
+	f1 := &Foo{A: 1, B: []*string{&str1, &str2}}
+
+	// Do the copy
+	var f2 Foo
+	awsutil.Copy(&f2, f1)
+
+	// Print the result
+	fmt.Println(awsutil.Prettify(f2))
+
+	// Output:
+	// {
+	//   A: 1,
+	//   B: ["hello","bye bye"]
+	// }
+}
+
+func TestCopy1(t *testing.T) {
+	type Bar struct {
+		a *int
+		B *int
+		c int
+		D int
+	}
+	type Foo struct {
+		A int
+		B []*string
+		C map[string]*int
+		D *time.Time
+		E *Bar
+	}
+
+	// Create the initial value
+	str1 := "hello"
+	str2 := "bye bye"
+	int1 := 1
+	int2 := 2
+	intPtr1 := 1
+	intPtr2 := 2
+	now := time.Now()
+	f1 := &Foo{
+		A: 1,
+		B: []*string{&str1, &str2},
+		C: map[string]*int{
+			"A": &int1,
+			"B": &int2,
+		},
+		D: &now,
+		E: &Bar{
+			&intPtr1,
+			&intPtr2,
+			2,
+			3,
+		},
+	}
+
+	// Do the copy
+	var f2 Foo
+	awsutil.Copy(&f2, f1)
+
+	// Values are equal
+	if v1, v2 := f2.A, f1.A; v1 != v2 {
+		t.Errorf("expected values to be equivalent but received %v and %v", v1, v2)
+	}
+	if v1, v2 := f2.B, f1.B; !reflect.DeepEqual(v1, v2) {
+		t.Errorf("expected values to be equivalent but received %v and %v", v1, v2)
+	}
+	if v1, v2 := f2.C, f1.C; !reflect.DeepEqual(v1, v2) {
+		t.Errorf("expected values to be equivalent but received %v and %v", v1, v2)
+	}
+	if v1, v2 := f2.D, f1.D; !v1.Equal(*v2) {
+		t.Errorf("expected values to be equivalent but received %v and %v", v1, v2)
+	}
+	if v1, v2 := f2.E.B, f1.E.B; !reflect.DeepEqual(v1, v2) {
+		t.Errorf("expected values to be equivalent but received %v and %v", v1, v2)
+	}
+	if v1, v2 := f2.E.D, f1.E.D; v1 != v2 {
+		t.Errorf("expected values to be equivalent but received %v and %v", v1, v2)
+	}
+
+	// But pointers are not!
+	str3 := "nothello"
+	int3 := 57
+	f2.A = 100
+	*f2.B[0] = str3
+	*f2.C["B"] = int3
+	*f2.D = time.Now()
+	f2.E.a = &int3
+	*f2.E.B = int3
+	f2.E.c = 5
+	f2.E.D = 5
+	if v1, v2 := f2.A, f1.A; v1 == v2 {
+		t.Errorf("expected values to be not equivalent, but received %v", v1)
+	}
+	if v1, v2 := f2.B, f1.B; reflect.DeepEqual(v1, v2) {
+		t.Errorf("expected values to be not equivalent, but received %v", v1)
+	}
+	if v1, v2 := f2.C, f1.C; reflect.DeepEqual(v1, v2) {
+		t.Errorf("expected values to be not equivalent, but received %v", v1)
+	}
+	if v1, v2 := f2.D, f1.D; v1 == v2 {
+		t.Errorf("expected values to be not equivalent, but received %v", v1)
+	}
+	if v1, v2 := f2.E.a, f1.E.a; v1 == v2 {
+		t.Errorf("expected values to be not equivalent, but received %v", v1)
+	}
+	if v1, v2 := f2.E.B, f1.E.B; v1 == v2 {
+		t.Errorf("expected values to be not equivalent, but received %v", v1)
+	}
+	if v1, v2 := f2.E.c, f1.E.c; v1 == v2 {
+		t.Errorf("expected values to be not equivalent, but received %v", v1)
+	}
+	if v1, v2 := f2.E.D, f1.E.D; v1 == v2 {
+		t.Errorf("expected values to be not equivalent, but received %v", v1)
+	}
+}
+
+func TestCopyNestedWithUnexported(t *testing.T) {
+	type Bar struct {
+		a int
+		B int
+	}
+	type Foo struct {
+		A string
+		B Bar
+	}
+
+	f1 := &Foo{A: "string", B: Bar{a: 1, B: 2}}
+
+	var f2 Foo
+	awsutil.Copy(&f2, f1)
+
+	// Values match
+	if v1, v2 := f2.A, f1.A; v1 != v2 {
+		t.Errorf("expected values to be equivalent but received %v and %v", v1, v2)
+	}
+	if v1, v2 := f2.B, f1.B; v1 == v2 {
+		t.Errorf("expected values to be not equivalent, but received %v", v1)
+	}
+	if v1, v2 := f2.B.a, f1.B.a; v1 == v2 {
+		t.Errorf("expected values to be not equivalent, but received %v", v1)
+	}
+	if v1, v2 := f2.B.B, f2.B.B; v1 != v2 {
+		t.Errorf("expected values to be equivalent but received %v and %v", v1, v2)
+	}
+}
+
+func TestCopyIgnoreNilMembers(t *testing.T) {
+	type Foo struct {
+		A *string
+		B []string
+		C map[string]string
+	}
+
+	f := &Foo{}
+	if v1 := f.A; v1 != nil {
+		t.Errorf("expected nil, but received %v", v1)
+	}
+	if v1 := f.B; v1 != nil {
+		t.Errorf("expected nil, but received %v", v1)
+	}
+	if v1 := f.C; v1 != nil {
+		t.Errorf("expected nil, but received %v", v1)
+	}
+
+	var f2 Foo
+	awsutil.Copy(&f2, f)
+	if v1 := f2.A; v1 != nil {
+		t.Errorf("expected nil, but received %v", v1)
+	}
+	if v1 := f2.B; v1 != nil {
+		t.Errorf("expected nil, but received %v", v1)
+	}
+	if v1 := f2.C; v1 != nil {
+		t.Errorf("expected nil, but received %v", v1)
+	}
+
+	fcopy := awsutil.CopyOf(f)
+	f3 := fcopy.(*Foo)
+	if v1 := f3.A; v1 != nil {
+		t.Errorf("expected nil, but received %v", v1)
+	}
+	if v1 := f3.B; v1 != nil {
+		t.Errorf("expected nil, but received %v", v1)
+	}
+	if v1 := f3.C; v1 != nil {
+		t.Errorf("expected nil, but received %v", v1)
+	}
+}
+
+func TestCopyPrimitive(t *testing.T) {
+	str := "hello"
+	var s string
+	awsutil.Copy(&s, &str)
+	if v1, v2 := "hello", s; v1 != v2 {
+		t.Errorf("expected values to be equivalent but received %v and %v", v1, v2)
+	}
+}
+
+func TestCopyNil(t *testing.T) {
+	var s string
+	awsutil.Copy(&s, nil)
+	if v1, v2 := "", s; v1 != v2 {
+		t.Errorf("expected values to be equivalent but received %v and %v", v1, v2)
+	}
+}
+
+func TestCopyReader(t *testing.T) {
+	var buf io.Reader = bytes.NewReader([]byte("hello world"))
+	var r io.Reader
+	awsutil.Copy(&r, buf)
+	b, err := ioutil.ReadAll(r)
+	if err != nil {
+		t.Errorf("expected no error, but received %v", err)
+	}
+	if v1, v2 := []byte("hello world"), b; !bytes.Equal(v1, v2) {
+		t.Errorf("expected values to be equivalent but received %v and %v", v1, v2)
+	}
+
+	// empty bytes because this is not a deep copy
+	b, err = ioutil.ReadAll(buf)
+	if err != nil {
+		t.Errorf("expected no error, but received %v", err)
+	}
+	if v1, v2 := []byte(""), b; !bytes.Equal(v1, v2) {
+		t.Errorf("expected values to be equivalent but received %v and %v", v1, v2)
+	}
+}
+
+func TestCopyDifferentStructs(t *testing.T) {
+	type SrcFoo struct {
+		A                int
+		B                []*string
+		C                map[string]*int
+		SrcUnique        string
+		SameNameDiffType int
+		unexportedPtr    *int
+		ExportedPtr      *int
+	}
+	type DstFoo struct {
+		A                int
+		B                []*string
+		C                map[string]*int
+		DstUnique        int
+		SameNameDiffType string
+		unexportedPtr    *int
+		ExportedPtr      *int
+	}
+
+	// Create the initial value
+	str1 := "hello"
+	str2 := "bye bye"
+	int1 := 1
+	int2 := 2
+	f1 := &SrcFoo{
+		A: 1,
+		B: []*string{&str1, &str2},
+		C: map[string]*int{
+			"A": &int1,
+			"B": &int2,
+		},
+		SrcUnique:        "unique",
+		SameNameDiffType: 1,
+		unexportedPtr:    &int1,
+		ExportedPtr:      &int2,
+	}
+
+	// Do the copy
+	var f2 DstFoo
+	awsutil.Copy(&f2, f1)
+
+	// Values are equal
+	if v1, v2 := f2.A, f1.A; v1 != v2 {
+		t.Errorf("expected values to be equivalent but received %v and %v", v1, v2)
+	}
+	if v1, v2 := f2.B, f1.B; !reflect.DeepEqual(v1, v2) {
+		t.Errorf("expected values to be equivalent but received %v and %v", v1, v2)
+	}
+	if v1, v2 := f2.C, f1.C; !reflect.DeepEqual(v1, v2) {
+		t.Errorf("expected values to be equivalent but received %v and %v", v1, v2)
+	}
+	if v1, v2 := "unique", f1.SrcUnique; v1 != v2 {
+		t.Errorf("expected values to be equivalent but received %v and %v", v1, v2)
+	}
+	if v1, v2 := 1, f1.SameNameDiffType; v1 != v2 {
+		t.Errorf("expected values to be equivalent but received %v and %v", v1, v2)
+	}
+	if v1, v2 := 0, f2.DstUnique; v1 != v2 {
+		t.Errorf("expected values to be equivalent but received %v and %v", v1, v2)
+	}
+	if v1, v2 := "", f2.SameNameDiffType; v1 != v2 {
+		t.Errorf("expected values to be equivalent but received %v and %v", v1, v2)
+	}
+	if v1, v2 := int1, *f1.unexportedPtr; v1 != v2 {
+		t.Errorf("expected values to be equivalent but received %v and %v", v1, v2)
+	}
+	if v1 := f2.unexportedPtr; v1 != nil {
+		t.Errorf("expected nil, but received %v", v1)
+	}
+	if v1, v2 := int2, *f1.ExportedPtr; v1 != v2 {
+		t.Errorf("expected values to be equivalent but received %v and %v", v1, v2)
+	}
+	if v1, v2 := int2, *f2.ExportedPtr; v1 != v2 {
+		t.Errorf("expected values to be equivalent but received %v and %v", v1, v2)
+	}
+}
+
+func ExampleCopyOf() {
+	type Foo struct {
+		A int
+		B []*string
+	}
+
+	// Create the initial value
+	str1 := "hello"
+	str2 := "bye bye"
+	f1 := &Foo{A: 1, B: []*string{&str1, &str2}}
+
+	// Do the copy
+	v := awsutil.CopyOf(f1)
+	var f2 *Foo = v.(*Foo)
+
+	// Print the result
+	fmt.Println(awsutil.Prettify(f2))
+
+	// Output:
+	// {
+	//   A: 1,
+	//   B: ["hello","bye bye"]
+	// }
+}

vendor/github.com/aws/aws-sdk-go/aws/awsutil/equal.go

+package awsutil
+
+import (
+	"reflect"
+)
+
+// DeepEqual returns if the two values are deeply equal like reflect.DeepEqual.
+// In addition to this, this method will also dereference the input values if
+// possible so the DeepEqual performed will not fail if one parameter is a
+// pointer and the other is not.
+//
+// DeepEqual will not perform indirection of nested values of the input parameters.
+func DeepEqual(a, b interface{}) bool {
+	ra := reflect.Indirect(reflect.ValueOf(a))
+	rb := reflect.Indirect(reflect.ValueOf(b))
+
+	if raValid, rbValid := ra.IsValid(), rb.IsValid(); !raValid && !rbValid {
+		// If the elements are both nil, and of the same type the are equal
+		// If they are of different types they are not equal
+		return reflect.TypeOf(a) == reflect.TypeOf(b)
+	} else if raValid != rbValid {
+		// Both values must be valid to be equal
+		return false
+	}
+
+	return reflect.DeepEqual(ra.Interface(), rb.Interface())
+}

vendor/github.com/aws/aws-sdk-go/aws/awsutil/equal_test.go

+package awsutil_test
+
+import (
+	"testing"
+
+	"github.com/aws/aws-sdk-go/aws"
+	"github.com/aws/aws-sdk-go/aws/awsutil"
+)
+
+func TestDeepEqual(t *testing.T) {
+	cases := []struct {
+		a, b  interface{}
+		equal bool
+	}{
+		{"a", "a", true},
+		{"a", "b", false},
+		{"a", aws.String(""), false},
+		{"a", nil, false},
+		{"a", aws.String("a"), true},
+		{(*bool)(nil), (*bool)(nil), true},
+		{(*bool)(nil), (*string)(nil), false},
+		{nil, nil, true},
+	}
+
+	for i, c := range cases {
+		if awsutil.DeepEqual(c.a, c.b) != c.equal {
+			t.Errorf("%d, a:%v b:%v, %t", i, c.a, c.b, c.equal)
+		}
+	}
+}

vendor/github.com/aws/aws-sdk-go/aws/awsutil/path_value.go

+package awsutil
+
+import (
+	"reflect"
+	"regexp"
+	"strconv"
+	"strings"
+
+	"github.com/jmespath/go-jmespath"
+)
+
+var indexRe = regexp.MustCompile(`(.+)\[(-?\d+)?\]$`)
+
+// rValuesAtPath returns a slice of values found in value v. The values
+// in v are explored recursively so all nested values are collected.
+func rValuesAtPath(v interface{}, path string, createPath, caseSensitive, nilTerm bool) []reflect.Value {
+	pathparts := strings.Split(path, "||")
+	if len(pathparts) > 1 {
+		for _, pathpart := range pathparts {
+			vals := rValuesAtPath(v, pathpart, createPath, caseSensitive, nilTerm)
+			if len(vals) > 0 {
+				return vals
+			}
+		}
+		return nil
+	}
+
+	values := []reflect.Value{reflect.Indirect(reflect.ValueOf(v))}
+	components := strings.Split(path, ".")
+	for len(values) > 0 && len(components) > 0 {
+		var index *int64
+		var indexStar bool
+		c := strings.TrimSpace(components[0])
+		if c == "" { // no actual component, illegal syntax
+			return nil
+		} else if caseSensitive && c != "*" && strings.ToLower(c[0:1]) == c[0:1] {
+			// TODO normalize case for user
+			return nil // don't support unexported fields
+		}
+
+		// parse this component
+		if m := indexRe.FindStringSubmatch(c); m != nil {
+			c = m[1]
+			if m[2] == "" {
+				index = nil
+				indexStar = true
+			} else {
+				i, _ := strconv.ParseInt(m[2], 10, 32)
+				index = &i
+				indexStar = false
+			}
+		}
+
+		nextvals := []reflect.Value{}
+		for _, value := range values {
+			// pull component name out of struct member
+			if value.Kind() != reflect.Struct {
+				continue
+			}
+
+			if c == "*" { // pull all members
+				for i := 0; i < value.NumField(); i++ {
+					if f := reflect.Indirect(value.Field(i)); f.IsValid() {
+						nextvals = append(nextvals, f)
+					}
+				}
+				continue
+			}
+
+			value = value.FieldByNameFunc(func(name string) bool {
+				if c == name {
+					return true
+				} else if !caseSensitive && strings.ToLower(name) == strings.ToLower(c) {
+					return true
+				}
+				return false
+			})
+
+			if nilTerm && value.Kind() == reflect.Ptr && len(components[1:]) == 0 {
+				if !value.IsNil() {
+					value.Set(reflect.Zero(value.Type()))
+				}
+				return []reflect.Value{value}
+			}
+
+			if createPath && value.Kind() == reflect.Ptr && value.IsNil() {
+				// TODO if the value is the terminus it should not be created
+				// if the value to be set to its position is nil.
+				value.Set(reflect.New(value.Type().Elem()))
+				value = value.Elem()
+			} else {
+				value = reflect.Indirect(value)
+			}
+
+			if value.Kind() == reflect.Slice || value.Kind() == reflect.Map {
+				if !createPath && value.IsNil() {
+					value = reflect.ValueOf(nil)
+				}
+			}
+
+			if value.IsValid() {
+				nextvals = append(nextvals, value)
+			}
+		}
+		values = nextvals
+
+		if indexStar || index != nil {
+			nextvals = []reflect.Value{}
+			for _, valItem := range values {
+				value := reflect.Indirect(valItem)
+				if value.Kind() != reflect.Slice {
+					continue
+				}
+
+				if indexStar { // grab all indices
+					for i := 0; i < value.Len(); i++ {
+						idx := reflect.Indirect(value.Index(i))
+						if idx.IsValid() {
+							nextvals = append(nextvals, idx)
+						}
+					}
+					continue
+				}
+
+				// pull out index
+				i := int(*index)
+				if i >= value.Len() { // check out of bounds
+					if createPath {
+						// TODO resize slice
+					} else {
+						continue
+					}
+				} else if i < 0 { // support negative indexing
+					i = value.Len() + i
+				}
+				value = reflect.Indirect(value.Index(i))
+
+				if value.Kind() == reflect.Slice || value.Kind() == reflect.Map {
+					if !createPath && value.IsNil() {
+						value = reflect.ValueOf(nil)
+					}
+				}
+
+				if value.IsValid() {
+					nextvals = append(nextvals, value)
+				}
+			}
+			values = nextvals
+		}
+
+		components = components[1:]
+	}
+	return values
+}
+
+// ValuesAtPath returns a list of values at the case insensitive lexical
+// path inside of a structure.
+func ValuesAtPath(i interface{}, path string) ([]interface{}, error) {
+	result, err := jmespath.Search(path, i)
+	if err != nil {
+		return nil, err
+	}
+
+	v := reflect.ValueOf(result)
+	if !v.IsValid() || (v.Kind() == reflect.Ptr && v.IsNil()) {
+		return nil, nil
+	}
+	if s, ok := result.([]interface{}); ok {
+		return s, err
+	}
+	if v.Kind() == reflect.Map && v.Len() == 0 {
+		return nil, nil
+	}
+	if v.Kind() == reflect.Slice {
+		out := make([]interface{}, v.Len())
+		for i := 0; i < v.Len(); i++ {
+			out[i] = v.Index(i).Interface()
+		}
+		return out, nil
+	}
+
+	return []interface{}{result}, nil
+}
+
+// SetValueAtPath sets a value at the case insensitive lexical path inside
+// of a structure.
+func SetValueAtPath(i interface{}, path string, v interface{}) {
+	if rvals := rValuesAtPath(i, path, true, false, v == nil); rvals != nil {
+		for _, rval := range rvals {
+			if rval.Kind() == reflect.Ptr && rval.IsNil() {
+				continue
+			}
+			setValue(rval, v)
+		}
+	}
+}
+
+func setValue(dstVal reflect.Value, src interface{}) {
+	if dstVal.Kind() == reflect.Ptr {
+		dstVal = reflect.Indirect(dstVal)
+	}
+	srcVal := reflect.ValueOf(src)
+
+	if !srcVal.IsValid() { // src is literal nil
+		if dstVal.CanAddr() {
+			// Convert to pointer so that pointer's value can be nil'ed
+			//                     dstVal = dstVal.Addr()
+		}
+		dstVal.Set(reflect.Zero(dstVal.Type()))
+
+	} else if srcVal.Kind() == reflect.Ptr {
+		if srcVal.IsNil() {
+			srcVal = reflect.Zero(dstVal.Type())
+		} else {
+			srcVal = reflect.ValueOf(src).Elem()
+		}
+		dstVal.Set(srcVal)
+	} else {
+		dstVal.Set(srcVal)
+	}
+
+}

vendor/github.com/aws/aws-sdk-go/aws/awsutil/path_value_test.go

+package awsutil_test
+
+import (
+	"strings"
+	"testing"
+
+	"github.com/aws/aws-sdk-go/aws/awsutil"
+)
+
+type Struct struct {
+	A []Struct
+	z []Struct
+	B *Struct
+	D *Struct
+	C string
+	E map[string]string
+}
+
+var data = Struct{
+	A: []Struct{{C: "value1"}, {C: "value2"}, {C: "value3"}},
+	z: []Struct{{C: "value1"}, {C: "value2"}, {C: "value3"}},
+	B: &Struct{B: &Struct{C: "terminal"}, D: &Struct{C: "terminal2"}},
+	C: "initial",
+}
+var data2 = Struct{A: []Struct{
+	{A: []Struct{{C: "1"}, {C: "1"}, {C: "1"}, {C: "1"}, {C: "1"}}},
+	{A: []Struct{{C: "2"}, {C: "2"}, {C: "2"}, {C: "2"}, {C: "2"}}},
+}}
+
+func TestValueAtPathSuccess(t *testing.T) {
+	var testCases = []struct {
+		expect []interface{}
+		data   interface{}
+		path   string
+	}{
+		{[]interface{}{"initial"}, data, "C"},
+		{[]interface{}{"value1"}, data, "A[0].C"},
+		{[]interface{}{"value2"}, data, "A[1].C"},
+		{[]interface{}{"value3"}, data, "A[2].C"},
+		{[]interface{}{"value3"}, data, "a[2].c"},
+		{[]interface{}{"value3"}, data, "A[-1].C"},
+		{[]interface{}{"value1", "value2", "value3"}, data, "A[].C"},
+		{[]interface{}{"terminal"}, data, "B . B . C"},
+		{[]interface{}{"initial"}, data, "A.D.X || C"},
+		{[]interface{}{"initial"}, data, "A[0].B || C"},
+		{[]interface{}{
+			Struct{A: []Struct{{C: "1"}, {C: "1"}, {C: "1"}, {C: "1"}, {C: "1"}}},
+			Struct{A: []Struct{{C: "2"}, {C: "2"}, {C: "2"}, {C: "2"}, {C: "2"}}},
+		}, data2, "A"},
+	}
+	for i, c := range testCases {
+		v, err := awsutil.ValuesAtPath(c.data, c.path)
+		if err != nil {
+			t.Errorf("case %v, expected no error, %v", i, c.path)
+		}
+		if e, a := c.expect, v; !awsutil.DeepEqual(e, a) {
+			t.Errorf("case %v, %v", i, c.path)
+		}
+	}
+}
+
+func TestValueAtPathFailure(t *testing.T) {
+	var testCases = []struct {
+		expect      []interface{}
+		errContains string
+		data        interface{}
+		path        string
+	}{
+		{nil, "", data, "C.x"},
+		{nil, "SyntaxError: Invalid token: tDot", data, ".x"},
+		{nil, "", data, "X.Y.Z"},
+		{nil, "", data, "A[100].C"},
+		{nil, "", data, "A[3].C"},
+		{nil, "", data, "B.B.C.Z"},
+		{nil, "", data, "z[-1].C"},
+		{nil, "", nil, "A.B.C"},
+		{[]interface{}{}, "", Struct{}, "A"},
+		{nil, "", data, "A[0].B.C"},
+		{nil, "", data, "D"},
+	}
+
+	for i, c := range testCases {
+		v, err := awsutil.ValuesAtPath(c.data, c.path)
+		if c.errContains != "" {
+			if !strings.Contains(err.Error(), c.errContains) {
+				t.Errorf("case %v, expected error, %v", i, c.path)
+			}
+			continue
+		} else {
+			if err != nil {
+				t.Errorf("case %v, expected no error, %v", i, c.path)
+			}
+		}
+		if e, a := c.expect, v; !awsutil.DeepEqual(e, a) {
+			t.Errorf("case %v, %v", i, c.path)
+		}
+	}
+}
+
+func TestSetValueAtPathSuccess(t *testing.T) {
+	var s Struct
+	awsutil.SetValueAtPath(&s, "C", "test1")
+	awsutil.SetValueAtPath(&s, "B.B.C", "test2")
+	awsutil.SetValueAtPath(&s, "B.D.C", "test3")
+	if e, a := "test1", s.C; e != a {
+		t.Errorf("expected %v, but received %v", e, a)
+	}
+	if e, a := "test2", s.B.B.C; e != a {
+		t.Errorf("expected %v, but received %v", e, a)
+	}
+	if e, a := "test3", s.B.D.C; e != a {
+		t.Errorf("expected %v, but received %v", e, a)
+	}
+
+	awsutil.SetValueAtPath(&s, "B.*.C", "test0")
+	if e, a := "test0", s.B.B.C; e != a {
+		t.Errorf("expected %v, but received %v", e, a)
+	}
+	if e, a := "test0", s.B.D.C; e != a {
+		t.Errorf("expected %v, but received %v", e, a)
+	}
+
+	var s2 Struct
+	awsutil.SetValueAtPath(&s2, "b.b.c", "test0")
+	if e, a := "test0", s2.B.B.C; e != a {
+		t.Errorf("expected %v, but received %v", e, a)
+	}
+	awsutil.SetValueAtPath(&s2, "A", []Struct{{}})
+	if e, a := []Struct{{}}, s2.A; !awsutil.DeepEqual(e, a) {
+		t.Errorf("expected %v, but received %v", e, a)
+	}
+
+	str := "foo"
+
+	s3 := Struct{}
+	awsutil.SetValueAtPath(&s3, "b.b.c", str)
+	if e, a := "foo", s3.B.B.C; e != a {
+		t.Errorf("expected %v, but received %v", e, a)
+	}
+
+	s3 = Struct{B: &Struct{B: &Struct{C: str}}}
+	awsutil.SetValueAtPath(&s3, "b.b.c", nil)
+	if e, a := "", s3.B.B.C; e != a {
+		t.Errorf("expected %v, but received %v", e, a)
+	}
+
+	s3 = Struct{}
+	awsutil.SetValueAtPath(&s3, "b.b.c", nil)
+	if e, a := "", s3.B.B.C; e != a {
+		t.Errorf("expected %v, but received %v", e, a)
+	}
+
+	s3 = Struct{}
+	awsutil.SetValueAtPath(&s3, "b.b.c", &str)
+	if e, a := "foo", s3.B.B.C; e != a {
+		t.Errorf("expected %v, but received %v", e, a)
+	}
+
+	var s4 struct{ Name *string }
+	awsutil.SetValueAtPath(&s4, "Name", str)
+	if e, a := str, *s4.Name; e != a {
+		t.Errorf("expected %v, but received %v", e, a)
+	}
+
+	s4 = struct{ Name *string }{}
+	awsutil.SetValueAtPath(&s4, "Name", nil)
+	if e, a := (*string)(nil), s4.Name; e != a {
+		t.Errorf("expected %v, but received %v", e, a)
+	}
+
+	s4 = struct{ Name *string }{Name: &str}
+	awsutil.SetValueAtPath(&s4, "Name", nil)
+	if e, a := (*string)(nil), s4.Name; e != a {
+		t.Errorf("expected %v, but received %v", e, a)
+	}
+
+	s4 = struct{ Name *string }{}
+	awsutil.SetValueAtPath(&s4, "Name", &str)
+	if e, a := str, *s4.Name; e != a {
+		t.Errorf("expected %v, but received %v", e, a)
+	}
+}

vendor/github.com/aws/aws-sdk-go/aws/awsutil/prettify.go

+package awsutil
+
+import (
+	"bytes"
+	"fmt"
+	"io"
+	"reflect"
+	"strings"
+)
+
+// Prettify returns the string representation of a value.
+func Prettify(i interface{}) string {
+	var buf bytes.Buffer
+	prettify(reflect.ValueOf(i), 0, &buf)
+	return buf.String()
+}
+
+// prettify will recursively walk value v to build a textual
+// representation of the value.
+func prettify(v reflect.Value, indent int, buf *bytes.Buffer) {
+	for v.Kind() == reflect.Ptr {
+		v = v.Elem()
+	}
+
+	switch v.Kind() {
+	case reflect.Struct:
+		strtype := v.Type().String()
+		if strtype == "time.Time" {
+			fmt.Fprintf(buf, "%s", v.Interface())
+			break
+		} else if strings.HasPrefix(strtype, "io.") {
+			buf.WriteString("<buffer>")
+			break
+		}
+
+		buf.WriteString("{\n")
+
+		names := []string{}
+		for i := 0; i < v.Type().NumField(); i++ {
+			name := v.Type().Field(i).Name
+			f := v.Field(i)
+			if name[0:1] == strings.ToLower(name[0:1]) {
+				continue // ignore unexported fields
+			}
+			if (f.Kind() == reflect.Ptr || f.Kind() == reflect.Slice || f.Kind() == reflect.Map) && f.IsNil() {
+				continue // ignore unset fields
+			}
+			names = append(names, name)
+		}
+
+		for i, n := range names {
+			val := v.FieldByName(n)
+			buf.WriteString(strings.Repeat(" ", indent+2))
+			buf.WriteString(n + ": ")
+			prettify(val, indent+2, buf)
+
+			if i < len(names)-1 {
+				buf.WriteString(",\n")
+			}
+		}
+
+		buf.WriteString("\n" + strings.Repeat(" ", indent) + "}")
+	case reflect.Slice:
+		strtype := v.Type().String()
+		if strtype == "[]uint8" {
+			fmt.Fprintf(buf, "<binary> len %d", v.Len())
+			break
+		}
+
+		nl, id, id2 := "", "", ""
+		if v.Len() > 3 {
+			nl, id, id2 = "\n", strings.Repeat(" ", indent), strings.Repeat(" ", indent+2)
+		}
+		buf.WriteString("[" + nl)
+		for i := 0; i < v.Len(); i++ {
+			buf.WriteString(id2)
+			prettify(v.Index(i), indent+2, buf)
+
+			if i < v.Len()-1 {
+				buf.WriteString("," + nl)
+			}
+		}
+
+		buf.WriteString(nl + id + "]")
+	case reflect.Map:
+		buf.WriteString("{\n")
+
+		for i, k := range v.MapKeys() {
+			buf.WriteString(strings.Repeat(" ", indent+2))
+			buf.WriteString(k.String() + ": ")
+			prettify(v.MapIndex(k), indent+2, buf)
+
+			if i < v.Len()-1 {
+				buf.WriteString(",\n")
+			}
+		}
+
+		buf.WriteString("\n" + strings.Repeat(" ", indent) + "}")
+	default:
+		if !v.IsValid() {
+			fmt.Fprint(buf, "<invalid value>")
+			return
+		}
+		format := "%v"
+		switch v.Interface().(type) {
+		case string:
+			format = "%q"
+		case io.ReadSeeker, io.Reader:
+			format = "buffer(%p)"
+		}
+		fmt.Fprintf(buf, format, v.Interface())
+	}
+}

vendor/github.com/aws/aws-sdk-go/aws/awsutil/string_value.go

+package awsutil
+
+import (
+	"bytes"
+	"fmt"
+	"reflect"
+	"strings"
+)
+
+// StringValue returns the string representation of a value.
+func StringValue(i interface{}) string {
+	var buf bytes.Buffer
+	stringValue(reflect.ValueOf(i), 0, &buf)
+	return buf.String()
+}
+
+func stringValue(v reflect.Value, indent int, buf *bytes.Buffer) {
+	for v.Kind() == reflect.Ptr {
+		v = v.Elem()
+	}
+
+	switch v.Kind() {
+	case reflect.Struct:
+		buf.WriteString("{\n")
+
+		names := []string{}
+		for i := 0; i < v.Type().NumField(); i++ {
+			name := v.Type().Field(i).Name
+			f := v.Field(i)
+			if name[0:1] == strings.ToLower(name[0:1]) {
+				continue // ignore unexported fields
+			}
+			if (f.Kind() == reflect.Ptr || f.Kind() == reflect.Slice) && f.IsNil() {
+				continue // ignore unset fields
+			}
+			names = append(names, name)
+		}
+
+		for i, n := range names {
+			val := v.FieldByName(n)
+			buf.WriteString(strings.Repeat(" ", indent+2))
+			buf.WriteString(n + ": ")
+			stringValue(val, indent+2, buf)
+
+			if i < len(names)-1 {
+				buf.WriteString(",\n")
+			}
+		}
+
+		buf.WriteString("\n" + strings.Repeat(" ", indent) + "}")
+	case reflect.Slice:
+		nl, id, id2 := "", "", ""
+		if v.Len() > 3 {
+			nl, id, id2 = "\n", strings.Repeat(" ", indent), strings.Repeat(" ", indent+2)
+		}
+		buf.WriteString("[" + nl)
+		for i := 0; i < v.Len(); i++ {
+			buf.WriteString(id2)
+			stringValue(v.Index(i), indent+2, buf)
+
+			if i < v.Len()-1 {
+				buf.WriteString("," + nl)
+			}
+		}
+
+		buf.WriteString(nl + id + "]")
+	case reflect.Map:
+		buf.WriteString("{\n")
+
+		for i, k := range v.MapKeys() {
+			buf.WriteString(strings.Repeat(" ", indent+2))
+			buf.WriteString(k.String() + ": ")
+			stringValue(v.MapIndex(k), indent+2, buf)
+
+			if i < v.Len()-1 {
+				buf.WriteString(",\n")
+			}
+		}
+
+		buf.WriteString("\n" + strings.Repeat(" ", indent) + "}")
+	default:
+		format := "%v"
+		switch v.Interface().(type) {
+		case string:
+			format = "%q"
+		}
+		fmt.Fprintf(buf, format, v.Interface())
+	}
+}

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

+package client
+
+import (
+	"fmt"
+
+	"github.com/aws/aws-sdk-go/aws"
+	"github.com/aws/aws-sdk-go/aws/client/metadata"
+	"github.com/aws/aws-sdk-go/aws/request"
+)
+
+// A Config provides configuration to a service client instance.
+type Config struct {
+	Config        *aws.Config
+	Handlers      request.Handlers
+	Endpoint      string
+	SigningRegion string
+	SigningName   string
+}
+
+// ConfigProvider provides a generic way for a service client to receive
+// the ClientConfig without circular dependencies.
+type ConfigProvider interface {
+	ClientConfig(serviceName string, cfgs ...*aws.Config) Config
+}
+
+// ConfigNoResolveEndpointProvider same as ConfigProvider except it will not
+// resolve the endpoint automatically. The service client's endpoint must be
+// provided via the aws.Config.Endpoint field.
+type ConfigNoResolveEndpointProvider interface {
+	ClientConfigNoResolveEndpoint(cfgs ...*aws.Config) Config
+}
+
+// A Client implements the base client request and response handling
+// used by all service clients.
+type Client struct {
+	request.Retryer
+	metadata.ClientInfo
+
+	Config   aws.Config
+	Handlers request.Handlers
+}
+
+// New will return a pointer to a new initialized service client.
+func New(cfg aws.Config, info metadata.ClientInfo, handlers request.Handlers, options ...func(*Client)) *Client {
+	svc := &Client{
+		Config:     cfg,
+		ClientInfo: info,
+		Handlers:   handlers.Copy(),
+	}
+
+	switch retryer, ok := cfg.Retryer.(request.Retryer); {
+	case ok:
+		svc.Retryer = retryer
+	case cfg.Retryer != nil && cfg.Logger != nil:
+		s := fmt.Sprintf("WARNING: %T does not implement request.Retryer; using DefaultRetryer instead", cfg.Retryer)
+		cfg.Logger.Log(s)
+		fallthrough
+	default:
+		maxRetries := aws.IntValue(cfg.MaxRetries)
+		if cfg.MaxRetries == nil || maxRetries == aws.UseServiceDefaultRetries {
+			maxRetries = 3
+		}
+		svc.Retryer = DefaultRetryer{NumMaxRetries: maxRetries}
+	}
+
+	svc.AddDebugHandlers()
+
+	for _, option := range options {
+		option(svc)
+	}
+
+	return svc
+}
+
+// NewRequest returns a new Request pointer for the service API
+// operation and parameters.
+func (c *Client) NewRequest(operation *request.Operation, params interface{}, data interface{}) *request.Request {
+	return request.New(c.Config, c.ClientInfo, c.Handlers, c.Retryer, operation, params, data)
+}
+
+// AddDebugHandlers injects debug logging handlers into the service to log request
+// debug information.
+func (c *Client) AddDebugHandlers() {
+	if !c.Config.LogLevel.AtLeast(aws.LogDebug) {
+		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})
+}

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

+package client
+
+import (
+	"testing"
+
+	"github.com/aws/aws-sdk-go/aws"
+	"github.com/aws/aws-sdk-go/aws/client/metadata"
+	"github.com/aws/aws-sdk-go/aws/request"
+)
+
+func pushBackTestHandler(name string, list *request.HandlerList) *bool {
+	called := false
+	(*list).PushBackNamed(request.NamedHandler{
+		Name: name,
+		Fn: func(r *request.Request) {
+			called = true
+		},
+	})
+
+	return &called
+}
+
+func pushFrontTestHandler(name string, list *request.HandlerList) *bool {
+	called := false
+	(*list).PushFrontNamed(request.NamedHandler{
+		Name: name,
+		Fn: func(r *request.Request) {
+			called = true
+		},
+	})
+
+	return &called
+}
+
+func TestNewClient_CopyHandlers(t *testing.T) {
+	handlers := request.Handlers{}
+	firstCalled := pushBackTestHandler("first", &handlers.Send)
+	secondCalled := pushBackTestHandler("second", &handlers.Send)
+
+	var clientHandlerCalled *bool
+	c := New(aws.Config{}, metadata.ClientInfo{}, handlers,
+		func(c *Client) {
+			clientHandlerCalled = pushFrontTestHandler("client handler", &c.Handlers.Send)
+		},
+	)
+
+	if e, a := 2, handlers.Send.Len(); e != a {
+		t.Errorf("expect %d original handlers, got %d", e, a)
+	}
+	if e, a := 3, c.Handlers.Send.Len(); e != a {
+		t.Errorf("expect %d client handlers, got %d", e, a)
+	}
+
+	handlers.Send.Run(nil)
+	if !*firstCalled {
+		t.Errorf("expect first handler to of been called")
+	}
+	*firstCalled = false
+	if !*secondCalled {
+		t.Errorf("expect second handler to of been called")
+	}
+	*secondCalled = false
+	if *clientHandlerCalled {
+		t.Errorf("expect client handler to not of been called, but was")
+	}
+
+	c.Handlers.Send.Run(nil)
+	if !*firstCalled {
+		t.Errorf("expect client's first handler to of been called")
+	}
+	if !*secondCalled {
+		t.Errorf("expect client's second handler to of been called")
+	}
+	if !*clientHandlerCalled {
+		t.Errorf("expect client's client handler to of been called")
+	}
+
+}

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

+package client
+
+import (
+	"math/rand"
+	"strconv"
+	"sync"
+	"time"
+
+	"github.com/aws/aws-sdk-go/aws/request"
+)
+
+// DefaultRetryer implements basic retry logic using exponential backoff for
+// most services. If you want to implement custom retry logic, implement the
+// request.Retryer interface or create a structure type that composes this
+// struct and override the specific methods. For example, to override only
+// the MaxRetries method:
+//
+//		type retryer struct {
+//      client.DefaultRetryer
+//    }
+//
+//    // This implementation always has 100 max retries
+//    func (d retryer) MaxRetries() int { return 100 }
+type DefaultRetryer struct {
+	NumMaxRetries int
+}
+
+// MaxRetries returns the number of maximum returns the service will use to make
+// an individual API request.
+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
+	minTime := 30
+	throttle := d.shouldThrottle(r)
+	if throttle {
+		if delay, ok := getRetryDelay(r); ok {
+			return delay
+		}
+
+		minTime = 500
+	}
+
+	retryCount := r.RetryCount
+	if throttle && retryCount > 8 {
+		retryCount = 8
+	} else if retryCount > 13 {
+		retryCount = 13
+	}
+
+	delay := (1 << uint(retryCount)) * (seededRand.Intn(minTime) + minTime)
+	return time.Duration(delay) * time.Millisecond
+}
+
+// ShouldRetry returns true if the request should be retried.
+func (d DefaultRetryer) ShouldRetry(r *request.Request) bool {
+	// If one of the other handlers already set the retry state
+	// we don't want to override it based on the service's state
+	if r.Retryable != nil {
+		return *r.Retryable
+	}
+
+	if r.HTTPResponse.StatusCode >= 500 {
+		return true
+	}
+	return r.IsErrorRetryable() || d.shouldThrottle(r)
+}
+
+// ShouldThrottle returns true if the request should be throttled.
+func (d DefaultRetryer) shouldThrottle(r *request.Request) bool {
+	switch r.HTTPResponse.StatusCode {
+	case 429:
+	case 502:
+	case 503:
+	case 504:
+	default:
+		return r.IsErrorThrottle()
+	}
+
+	return true
+}
+
+// This will look in the Retry-After header, RFC 7231, for how long
+// it will wait before attempting another request
+func getRetryDelay(r *request.Request) (time.Duration, bool) {
+	if !canUseRetryAfterHeader(r) {
+		return 0, false
+	}
+
+	delayStr := r.HTTPResponse.Header.Get("Retry-After")
+	if len(delayStr) == 0 {
+		return 0, false
+	}
+
+	delay, err := strconv.Atoi(delayStr)
+	if err != nil {
+		return 0, false
+	}
+
+	return time.Duration(delay) * time.Second, true
+}
+
+// Will look at the status code to see if the retry header pertains to
+// the status code.
+func canUseRetryAfterHeader(r *request.Request) bool {
+	switch r.HTTPResponse.StatusCode {
+	case 429:
+	case 503:
+	default:
+		return false
+	}
+
+	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/default_retryer_test.go

+package client
+
+import (
+	"net/http"
+	"testing"
+	"time"
+
+	"github.com/aws/aws-sdk-go/aws/request"
+)
+
+func TestRetryThrottleStatusCodes(t *testing.T) {
+	cases := []struct {
+		expectThrottle bool
+		expectRetry    bool
+		r              request.Request
+	}{
+		{
+			false,
+			false,
+			request.Request{
+				HTTPResponse: &http.Response{StatusCode: 200},
+			},
+		},
+		{
+			true,
+			true,
+			request.Request{
+				HTTPResponse: &http.Response{StatusCode: 429},
+			},
+		},
+		{
+			true,
+			true,
+			request.Request{
+				HTTPResponse: &http.Response{StatusCode: 502},
+			},
+		},
+		{
+			true,
+			true,
+			request.Request{
+				HTTPResponse: &http.Response{StatusCode: 503},
+			},
+		},
+		{
+			true,
+			true,
+			request.Request{
+				HTTPResponse: &http.Response{StatusCode: 504},
+			},
+		},
+		{
+			false,
+			true,
+			request.Request{
+				HTTPResponse: &http.Response{StatusCode: 500},
+			},
+		},
+	}
+
+	d := DefaultRetryer{NumMaxRetries: 10}
+	for i, c := range cases {
+		throttle := d.shouldThrottle(&c.r)
+		retry := d.ShouldRetry(&c.r)
+
+		if e, a := c.expectThrottle, throttle; e != a {
+			t.Errorf("%d: expected %v, but received %v", i, e, a)
+		}
+
+		if e, a := c.expectRetry, retry; e != a {
+			t.Errorf("%d: expected %v, but received %v", i, e, a)
+		}
+	}
+}
+
+func TestCanUseRetryAfter(t *testing.T) {
+	cases := []struct {
+		r request.Request
+		e bool
+	}{
+		{
+			request.Request{
+				HTTPResponse: &http.Response{StatusCode: 200},
+			},
+			false,
+		},
+		{
+			request.Request{
+				HTTPResponse: &http.Response{StatusCode: 500},
+			},
+			false,
+		},
+		{
+			request.Request{
+				HTTPResponse: &http.Response{StatusCode: 429},
+			},
+			true,
+		},
+		{
+			request.Request{
+				HTTPResponse: &http.Response{StatusCode: 503},
+			},
+			true,
+		},
+	}
+
+	for i, c := range cases {
+		a := canUseRetryAfterHeader(&c.r)
+		if c.e != a {
+			t.Errorf("%d: expected %v, but received %v", i, c.e, a)
+		}
+	}
+}
+
+func TestGetRetryDelay(t *testing.T) {
+	cases := []struct {
+		r     request.Request
+		e     time.Duration
+		equal bool
+		ok    bool
+	}{
+		{
+			request.Request{
+				HTTPResponse: &http.Response{StatusCode: 429, Header: http.Header{"Retry-After": []string{"3600"}}},
+			},
+			3600 * time.Second,
+			true,
+			true,
+		},
+		{
+			request.Request{
+				HTTPResponse: &http.Response{StatusCode: 503, Header: http.Header{"Retry-After": []string{"120"}}},
+			},
+			120 * time.Second,
+			true,
+			true,
+		},
+		{
+			request.Request{
+				HTTPResponse: &http.Response{StatusCode: 503, Header: http.Header{"Retry-After": []string{"120"}}},
+			},
+			1 * time.Second,
+			false,
+			true,
+		},
+		{
+			request.Request{
+				HTTPResponse: &http.Response{StatusCode: 503, Header: http.Header{"Retry-After": []string{""}}},
+			},
+			0 * time.Second,
+			true,
+			false,
+		},
+	}
+
+	for i, c := range cases {
+		a, ok := getRetryDelay(&c.r)
+		if c.ok != ok {
+			t.Errorf("%d: expected %v, but received %v", i, c.ok, ok)
+		}
+
+		if (c.e != a) == c.equal {
+			t.Errorf("%d: expected %v, but received %v", i, c.e, a)
+		}
+	}
+}
+
+func TestRetryDelay(t *testing.T) {
+	r := request.Request{}
+	for i := 0; i < 100; i++ {
+		rTemp := r
+		rTemp.HTTPResponse = &http.Response{StatusCode: 500, Header: http.Header{"Retry-After": []string{""}}}
+		rTemp.RetryCount = i
+		a, _ := getRetryDelay(&rTemp)
+		if a > 5*time.Minute {
+			t.Errorf("retry delay should never be greater than five minutes, received %d", a)
+		}
+	}
+
+	for i := 0; i < 100; i++ {
+		rTemp := r
+		rTemp.RetryCount = i
+		rTemp.HTTPResponse = &http.Response{StatusCode: 503, Header: http.Header{"Retry-After": []string{""}}}
+		a, _ := getRetryDelay(&rTemp)
+		if a > 5*time.Minute {
+			t.Errorf("retry delay should never be greater than five minutes, received %d", a)
+		}
+	}
+}

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

+package client
+
+import (
+	"bytes"
+	"fmt"
+	"io"
+	"io/ioutil"
+	"net/http/httputil"
+
+	"github.com/aws/aws-sdk-go/aws"
+	"github.com/aws/aws-sdk-go/aws/request"
+)
+
+const logReqMsg = `DEBUG: Request %s/%s Details:
+---[ REQUEST POST-SIGN ]-----------------------------
+%s
+-----------------------------------------------------`
+
+const logReqErrMsg = `DEBUG ERROR: Request %s/%s:
+---[ REQUEST DUMP ERROR ]-----------------------------
+%s
+------------------------------------------------------`
+
+type logWriter struct {
+	// Logger is what we will use to log the payload of a response.
+	Logger aws.Logger
+	// buf stores the contents of what has been read
+	buf *bytes.Buffer
+}
+
+func (logger *logWriter) Write(b []byte) (int, error) {
+	return logger.buf.Write(b)
+}
+
+type teeReaderCloser struct {
+	// io.Reader will be a tee reader that is used during logging.
+	// This structure will read from a body and write the contents to a logger.
+	io.Reader
+	// Source is used just to close when we are done reading.
+	Source io.ReadCloser
+}
+
+func (reader *teeReaderCloser) Close() error {
+	return reader.Source.Close()
+}
+
+func logRequest(r *request.Request) {
+	logBody := r.Config.LogLevel.Matches(aws.LogDebugWithHTTPBody)
+	dumpedBody, err := httputil.DumpRequestOut(r.HTTPRequest, logBody)
+	if err != nil {
+		r.Config.Logger.Log(fmt.Sprintf(logReqErrMsg, r.ClientInfo.ServiceName, r.Operation.Name, err))
+		return
+	}
+
+	if logBody {
+		// 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)))
+}
+
+const logRespMsg = `DEBUG: Response %s/%s Details:
+---[ RESPONSE ]--------------------------------------
+%s
+-----------------------------------------------------`
+
+const logRespErrMsg = `DEBUG ERROR: Response %s/%s:
+---[ RESPONSE DUMP ERROR ]-----------------------------
+%s
+-----------------------------------------------------`
+
+func logResponse(r *request.Request) {
+	lw := &logWriter{r.Config.Logger, bytes.NewBuffer(nil)}
+	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)
+		if err != nil {
+			lw.Logger.Log(fmt.Sprintf(logRespErrMsg, req.ClientInfo.ServiceName, req.Operation.Name, err))
+			return
+		}
+
+		b, err := ioutil.ReadAll(lw.buf)
+		if err != nil {
+			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))
+		}
+	}
+
+	const handlerName = "awsdk.client.LogResponse.ResponseBody"
+
+	r.Handlers.Unmarshal.SetBackNamed(request.NamedHandler{
+		Name: handlerName, Fn: handlerFn,
+	})
+	r.Handlers.UnmarshalError.SetBackNamed(request.NamedHandler{
+		Name: handlerName, Fn: handlerFn,
+	})
+}

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

+package client
+
+import (
+	"bytes"
+	"io"
+	"testing"
+)
+
+type mockCloser struct {
+	closed bool
+}
+
+func (closer *mockCloser) Read(b []byte) (int, error) {
+	return 0, io.EOF
+}
+
+func (closer *mockCloser) Close() error {
+	closer.closed = true
+	return nil
+}
+
+func TestTeeReaderCloser(t *testing.T) {
+	expected := "FOO"
+	buf := bytes.NewBuffer([]byte(expected))
+	lw := bytes.NewBuffer(nil)
+	c := &mockCloser{}
+	closer := teeReaderCloser{
+		io.TeeReader(buf, lw),
+		c,
+	}
+
+	b := make([]byte, len(expected))
+	_, err := closer.Read(b)
+	closer.Close()
+
+	if expected != lw.String() {
+		t.Errorf("Expected %q, but received %q", expected, lw.String())
+	}
+
+	if err != nil {
+		t.Errorf("Expected 'nil', but received %v", err)
+	}
+
+	if !c.closed {
+		t.Error("Expected 'true', but received 'false'")
+	}
+}
+
+func TestLogWriter(t *testing.T) {
+	expected := "FOO"
+	lw := &logWriter{nil, bytes.NewBuffer(nil)}
+	lw.Write([]byte(expected))
+
+	if expected != lw.buf.String() {
+		t.Errorf("Expected %q, but received %q", expected, lw.buf.String())
+	}
+}

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

+package metadata
+
+// ClientInfo wraps immutable data from the client.Client structure.
+type ClientInfo struct {
+	ServiceName   string
+	APIVersion    string
+	Endpoint      string
+	SigningName   string
+	SigningRegion string
+	JSONVersion   string
+	TargetPrefix  string
+}

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

+package aws
+
+import (
+	"net/http"
+	"reflect"
+	"testing"
+
+	"github.com/aws/aws-sdk-go/aws/credentials"
+)
+
+var testCredentials = credentials.NewStaticCredentials("AKID", "SECRET", "SESSION")
+
+var copyTestConfig = Config{
+	Credentials:             testCredentials,
+	Endpoint:                String("CopyTestEndpoint"),
+	Region:                  String("COPY_TEST_AWS_REGION"),
+	DisableSSL:              Bool(true),
+	HTTPClient:              http.DefaultClient,
+	LogLevel:                LogLevel(LogDebug),
+	Logger:                  NewDefaultLogger(),
+	MaxRetries:              Int(3),
+	DisableParamValidation:  Bool(true),
+	DisableComputeChecksums: Bool(true),
+	S3ForcePathStyle:        Bool(true),
+}
+
+func TestCopy(t *testing.T) {
+	want := copyTestConfig
+	got := copyTestConfig.Copy()
+	if !reflect.DeepEqual(*got, want) {
+		t.Errorf("Copy() = %+v", got)
+		t.Errorf("    want %+v", want)
+	}
+
+	got.Region = String("other")
+	if got.Region == want.Region {
+		t.Errorf("Expect setting copy values not not reflect in source")
+	}
+}
+
+func TestCopyReturnsNewInstance(t *testing.T) {
+	want := copyTestConfig
+	got := copyTestConfig.Copy()
+	if got == &want {
+		t.Errorf("Copy() = %p; want different instance as source %p", got, &want)
+	}
+}
+
+var mergeTestZeroValueConfig = Config{}
+
+var mergeTestConfig = Config{
+	Credentials:             testCredentials,
+	Endpoint:                String("MergeTestEndpoint"),
+	Region:                  String("MERGE_TEST_AWS_REGION"),
+	DisableSSL:              Bool(true),
+	HTTPClient:              http.DefaultClient,
+	LogLevel:                LogLevel(LogDebug),
+	Logger:                  NewDefaultLogger(),
+	MaxRetries:              Int(10),
+	DisableParamValidation:  Bool(true),
+	DisableComputeChecksums: Bool(true),
+	S3ForcePathStyle:        Bool(true),
+}
+
+var mergeTests = []struct {
+	cfg  *Config
+	in   *Config
+	want *Config
+}{
+	{&Config{}, nil, &Config{}},
+	{&Config{}, &mergeTestZeroValueConfig, &Config{}},
+	{&Config{}, &mergeTestConfig, &mergeTestConfig},
+}
+
+func TestMerge(t *testing.T) {
+	for i, tt := range mergeTests {
+		got := tt.cfg.Copy()
+		got.MergeIn(tt.in)
+		if !reflect.DeepEqual(got, tt.want) {
+			t.Errorf("Config %d %+v", i, tt.cfg)
+			t.Errorf("   Merge(%+v)", tt.in)
+			t.Errorf("     got %+v", got)
+			t.Errorf("    want %+v", tt.want)
+		}
+	}
+}

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

+package aws
+
+import (
+	"time"
+)
+
+// Context is an copy of the Go v1.7 stdlib's context.Context interface.
+// It is represented as a SDK interface to enable you to use the "WithContext"
+// API methods with Go v1.6 and a Context type such as golang.org/x/net/context.
+//
+// See https://golang.org/pkg/context on how to use contexts.
+type Context interface {
+	// Deadline returns the time when work done on behalf of this context
+	// should be canceled. Deadline returns ok==false when no deadline is
+	// set. Successive calls to Deadline return the same results.
+	Deadline() (deadline time.Time, ok bool)
+
+	// Done returns a channel that's closed when work done on behalf of this
+	// context should be canceled. Done may return nil if this context can
+	// never be canceled. Successive calls to Done return the same value.
+	Done() <-chan struct{}
+
+	// Err returns a non-nil error value after Done is closed. Err returns
+	// Canceled if the context was canceled or DeadlineExceeded if the
+	// context's deadline passed. No other values for Err are defined.
+	// After Done is closed, successive calls to Err return the same value.
+	Err() error
+
+	// Value returns the value associated with this context for key, or nil
+	// if no value is associated with key. Successive calls to Value with
+	// the same key returns the same result.
+	//
+	// Use context values only for request-scoped data that transits
+	// processes and API boundaries, not for passing optional parameters to
+	// functions.
+	Value(key interface{}) interface{}
+}
+
+// BackgroundContext returns a context that will never be canceled, has no
+// values, and no deadline. This context is used by the SDK to provide
+// backwards compatibility with non-context API operations and functionality.
+//
+// Go 1.6 and before:
+// This context function is equivalent to context.Background in the Go stdlib.
+//
+// Go 1.7 and later:
+// The context returned will be the value returned by context.Background()
+//
+// See https://golang.org/pkg/context for more information on Contexts.
+func BackgroundContext() Context {
+	return backgroundCtx
+}
+
+// SleepWithContext will wait for the timer duration to expire, or the context
+// is canceled. Which ever happens first. If the context is canceled the Context's
+// error will be returned.
+//
+// Expects Context to always return a non-nil error if the Done channel is closed.
+func SleepWithContext(ctx Context, dur time.Duration) error {
+	t := time.NewTimer(dur)
+	defer t.Stop()
+
+	select {
+	case <-t.C:
+		break
+	case <-ctx.Done():
+		return ctx.Err()
+	}
+
+	return nil
+}

vendor/github.com/aws/aws-sdk-go/aws/context_1_6.go

+// +build !go1.7
+
+package aws
+
+import "time"
+
+// An emptyCtx is a copy of the Go 1.7 context.emptyCtx type. This is copied to
+// provide a 1.6 and 1.5 safe version of context that is compatible with Go
+// 1.7's Context.
+//
+// An emptyCtx is never canceled, has no values, and has no deadline. It is not
+// struct{}, since vars of this type must have distinct addresses.
+type emptyCtx int
+
+func (*emptyCtx) Deadline() (deadline time.Time, ok bool) {
+	return
+}
+
+func (*emptyCtx) Done() <-chan struct{} {
+	return nil
+}
+
+func (*emptyCtx) Err() error {
+	return nil
+}
+
+func (*emptyCtx) Value(key interface{}) interface{} {
+	return nil
+}
+
+func (e *emptyCtx) String() string {
+	switch e {
+	case backgroundCtx:
+		return "aws.BackgroundContext"
+	}
+	return "unknown empty Context"
+}
+
+var (
+	backgroundCtx = new(emptyCtx)
+)

vendor/github.com/aws/aws-sdk-go/aws/context_1_7.go

+// +build go1.7
+
+package aws
+
+import "context"
+
+var (
+	backgroundCtx = context.Background()
+)

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

+package aws_test
+
+import (
+	"fmt"
+	"testing"
+	"time"
+
+	"github.com/aws/aws-sdk-go/aws"
+	"github.com/aws/aws-sdk-go/awstesting"
+)
+
+func TestSleepWithContext(t *testing.T) {
+	ctx := &awstesting.FakeContext{DoneCh: make(chan struct{})}
+
+	err := aws.SleepWithContext(ctx, 1*time.Millisecond)
+	if err != nil {
+		t.Errorf("expect context to not be canceled, got %v", err)
+	}
+}
+
+func TestSleepWithContext_Canceled(t *testing.T) {
+	ctx := &awstesting.FakeContext{DoneCh: make(chan struct{})}
+
+	expectErr := fmt.Errorf("context canceled")
+
+	ctx.Error = expectErr
+	close(ctx.DoneCh)
+
+	err := aws.SleepWithContext(ctx, 1*time.Millisecond)
+	if err == nil {
+		t.Fatalf("expect error, did not get one")
+	}
+
+	if e, a := expectErr, err; e != a {
+		t.Errorf("expect %v error, got %v", e, a)
+	}
+}

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

+package aws
+
+import "time"
+
+// String returns a pointer to the string value passed in.
+func String(v string) *string {
+	return &v
+}
+
+// StringValue returns the value of the string pointer passed in or
+// "" if the pointer is nil.
+func StringValue(v *string) string {
+	if v != nil {
+		return *v
+	}
+	return ""
+}
+
+// StringSlice converts a slice of string values into a slice of
+// string pointers
+func StringSlice(src []string) []*string {
+	dst := make([]*string, len(src))
+	for i := 0; i < len(src); i++ {
+		dst[i] = &(src[i])
+	}
+	return dst
+}
+
+// StringValueSlice converts a slice of string pointers into a slice of
+// string values
+func StringValueSlice(src []*string) []string {
+	dst := make([]string, len(src))
+	for i := 0; i < len(src); i++ {
+		if src[i] != nil {
+			dst[i] = *(src[i])
+		}
+	}
+	return dst
+}
+
+// StringMap converts a string map of string values into a string
+// map of string pointers
+func StringMap(src map[string]string) map[string]*string {
+	dst := make(map[string]*string)
+	for k, val := range src {
+		v := val
+		dst[k] = &v
+	}
+	return dst
+}
+
+// StringValueMap converts a string map of string pointers into a string
+// map of string values
+func StringValueMap(src map[string]*string) map[string]string {
+	dst := make(map[string]string)
+	for k, val := range src {
+		if val != nil {
+			dst[k] = *val
+		}
+	}
+	return dst
+}
+
+// Bool returns a pointer to the bool value passed in.
+func Bool(v bool) *bool {
+	return &v
+}
+
+// BoolValue returns the value of the bool pointer passed in or
+// false if the pointer is nil.
+func BoolValue(v *bool) bool {
+	if v != nil {
+		return *v
+	}
+	return false
+}
+
+// BoolSlice converts a slice of bool values into a slice of
+// bool pointers
+func BoolSlice(src []bool) []*bool {
+	dst := make([]*bool, len(src))
+	for i := 0; i < len(src); i++ {
+		dst[i] = &(src[i])
+	}
+	return dst
+}
+
+// BoolValueSlice converts a slice of bool pointers into a slice of
+// bool values
+func BoolValueSlice(src []*bool) []bool {
+	dst := make([]bool, len(src))
+	for i := 0; i < len(src); i++ {
+		if src[i] != nil {
+			dst[i] = *(src[i])
+		}
+	}
+	return dst
+}
+
+// BoolMap converts a string map of bool values into a string
+// map of bool pointers
+func BoolMap(src map[string]bool) map[string]*bool {
+	dst := make(map[string]*bool)
+	for k, val := range src {
+		v := val
+		dst[k] = &v
+	}
+	return dst
+}
+
+// BoolValueMap converts a string map of bool pointers into a string
+// map of bool values
+func BoolValueMap(src map[string]*bool) map[string]bool {
+	dst := make(map[string]bool)
+	for k, val := range src {
+		if val != nil {
+			dst[k] = *val
+		}
+	}
+	return dst
+}
+
+// Int returns a pointer to the int value passed in.
+func Int(v int) *int {
+	return &v
+}
+
+// IntValue returns the value of the int pointer passed in or
+// 0 if the pointer is nil.
+func IntValue(v *int) int {
+	if v != nil {
+		return *v
+	}
+	return 0
+}
+
+// IntSlice converts a slice of int values into a slice of
+// int pointers
+func IntSlice(src []int) []*int {
+	dst := make([]*int, len(src))
+	for i := 0; i < len(src); i++ {
+		dst[i] = &(src[i])
+	}
+	return dst
+}
+
+// IntValueSlice converts a slice of int pointers into a slice of
+// int values
+func IntValueSlice(src []*int) []int {
+	dst := make([]int, len(src))
+	for i := 0; i < len(src); i++ {
+		if src[i] != nil {
+			dst[i] = *(src[i])
+		}
+	}
+	return dst
+}
+
+// IntMap converts a string map of int values into a string
+// map of int pointers
+func IntMap(src map[string]int) map[string]*int {
+	dst := make(map[string]*int)
+	for k, val := range src {
+		v := val
+		dst[k] = &v
+	}
+	return dst
+}
+
+// IntValueMap converts a string map of int pointers into a string
+// map of int values
+func IntValueMap(src map[string]*int) map[string]int {
+	dst := make(map[string]int)
+	for k, val := range src {
+		if val != nil {
+			dst[k] = *val
+		}
+	}
+	return dst
+}
+
+// Int64 returns a pointer to the int64 value passed in.
+func Int64(v int64) *int64 {
+	return &v
+}
+
+// Int64Value returns the value of the int64 pointer passed in or
+// 0 if the pointer is nil.
+func Int64Value(v *int64) int64 {
+	if v != nil {
+		return *v
+	}
+	return 0
+}
+
+// Int64Slice converts a slice of int64 values into a slice of
+// int64 pointers
+func Int64Slice(src []int64) []*int64 {
+	dst := make([]*int64, len(src))
+	for i := 0; i < len(src); i++ {
+		dst[i] = &(src[i])
+	}
+	return dst
+}
+
+// Int64ValueSlice converts a slice of int64 pointers into a slice of
+// int64 values
+func Int64ValueSlice(src []*int64) []int64 {
+	dst := make([]int64, len(src))
+	for i := 0; i < len(src); i++ {
+		if src[i] != nil {
+			dst[i] = *(src[i])
+		}
+	}
+	return dst
+}
+
+// Int64Map converts a string map of int64 values into a string
+// map of int64 pointers
+func Int64Map(src map[string]int64) map[string]*int64 {
+	dst := make(map[string]*int64)
+	for k, val := range src {
+		v := val
+		dst[k] = &v
+	}
+	return dst
+}
+
+// Int64ValueMap converts a string map of int64 pointers into a string
+// map of int64 values
+func Int64ValueMap(src map[string]*int64) map[string]int64 {
+	dst := make(map[string]int64)
+	for k, val := range src {
+		if val != nil {
+			dst[k] = *val
+		}
+	}
+	return dst
+}
+
+// Float64 returns a pointer to the float64 value passed in.
+func Float64(v float64) *float64 {
+	return &v
+}
+
+// Float64Value returns the value of the float64 pointer passed in or
+// 0 if the pointer is nil.
+func Float64Value(v *float64) float64 {
+	if v != nil {
+		return *v
+	}
+	return 0
+}
+
+// Float64Slice converts a slice of float64 values into a slice of
+// float64 pointers
+func Float64Slice(src []float64) []*float64 {
+	dst := make([]*float64, len(src))
+	for i := 0; i < len(src); i++ {
+		dst[i] = &(src[i])
+	}
+	return dst
+}
+
+// Float64ValueSlice converts a slice of float64 pointers into a slice of
+// float64 values
+func Float64ValueSlice(src []*float64) []float64 {
+	dst := make([]float64, len(src))
+	for i := 0; i < len(src); i++ {
+		if src[i] != nil {
+			dst[i] = *(src[i])
+		}
+	}
+	return dst
+}
+
+// Float64Map converts a string map of float64 values into a string
+// map of float64 pointers
+func Float64Map(src map[string]float64) map[string]*float64 {
+	dst := make(map[string]*float64)
+	for k, val := range src {
+		v := val
+		dst[k] = &v
+	}
+	return dst
+}
+
+// Float64ValueMap converts a string map of float64 pointers into a string
+// map of float64 values
+func Float64ValueMap(src map[string]*float64) map[string]float64 {
+	dst := make(map[string]float64)
+	for k, val := range src {
+		if val != nil {
+			dst[k] = *val
+		}
+	}
+	return dst
+}
+
+// Time returns a pointer to the time.Time value passed in.
+func Time(v time.Time) *time.Time {
+	return &v
+}
+
+// TimeValue returns the value of the time.Time pointer passed in or
+// time.Time{} if the pointer is nil.
+func TimeValue(v *time.Time) time.Time {
+	if v != nil {
+		return *v
+	}
+	return time.Time{}
+}
+
+// SecondsTimeValue converts an int64 pointer to a time.Time value
+// representing seconds since Epoch or time.Time{} if the pointer is nil.
+func SecondsTimeValue(v *int64) time.Time {
+	if v != nil {
+		return time.Unix((*v / 1000), 0)
+	}
+	return time.Time{}
+}
+
+// MillisecondsTimeValue converts an int64 pointer to a time.Time value
+// representing milliseconds sinch Epoch or time.Time{} if the pointer is nil.
+func MillisecondsTimeValue(v *int64) time.Time {
+	if v != nil {
+		return time.Unix(0, (*v * 1000000))
+	}
+	return time.Time{}
+}
+
+// TimeUnixMilli returns a Unix timestamp in milliseconds from "January 1, 1970 UTC".
+// The result is undefined if the Unix time cannot be represented by an int64.
+// Which includes calling TimeUnixMilli on a zero Time is undefined.
+//
+// This utility is useful for service API's such as CloudWatch Logs which require
+// their unix time values to be in milliseconds.
+//
+// See Go stdlib https://golang.org/pkg/time/#Time.UnixNano for more information.
+func TimeUnixMilli(t time.Time) int64 {
+	return t.UnixNano() / int64(time.Millisecond/time.Nanosecond)
+}
+
+// TimeSlice converts a slice of time.Time values into a slice of
+// time.Time pointers
+func TimeSlice(src []time.Time) []*time.Time {
+	dst := make([]*time.Time, len(src))
+	for i := 0; i < len(src); i++ {
+		dst[i] = &(src[i])
+	}
+	return dst
+}
+
+// TimeValueSlice converts a slice of time.Time pointers into a slice of
+// time.Time values
+func TimeValueSlice(src []*time.Time) []time.Time {
+	dst := make([]time.Time, len(src))
+	for i := 0; i < len(src); i++ {
+		if src[i] != nil {
+			dst[i] = *(src[i])
+		}
+	}
+	return dst
+}
+
+// TimeMap converts a string map of time.Time values into a string
+// map of time.Time pointers
+func TimeMap(src map[string]time.Time) map[string]*time.Time {
+	dst := make(map[string]*time.Time)
+	for k, val := range src {
+		v := val
+		dst[k] = &v
+	}
+	return dst
+}
+
+// TimeValueMap converts a string map of time.Time pointers into a string
+// map of time.Time values
+func TimeValueMap(src map[string]*time.Time) map[string]time.Time {
+	dst := make(map[string]time.Time)
+	for k, val := range src {
+		if val != nil {
+			dst[k] = *val
+		}
+	}
+	return dst
+}

vendor/github.com/aws/aws-sdk-go/aws/corehandlers/handlers_1_8_test.go

+// +build go1.8
+
+package corehandlers_test
+
+import (
+	"crypto/tls"
+	"net/http"
+	"testing"
+
+	"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/aws/session"
+	"github.com/aws/aws-sdk-go/awstesting"
+	"github.com/aws/aws-sdk-go/service/s3"
+	"golang.org/x/net/http2"
+)
+
+func TestSendHandler_HEADNoBody(t *testing.T) {
+	TLSBundleCertFile, TLSBundleKeyFile, TLSBundleCAFile, err := awstesting.CreateTLSBundleFiles()
+	if err != nil {
+		panic(err)
+	}
+	defer awstesting.CleanupTLSBundleFiles(TLSBundleCertFile, TLSBundleKeyFile, TLSBundleCAFile)
+
+	endpoint, err := awstesting.CreateTLSServer(TLSBundleCertFile, TLSBundleKeyFile, nil)
+	if err != nil {
+		t.Fatalf("expect no error, got %v", err)
+	}
+
+	transport := http.DefaultTransport.(*http.Transport)
+	// test server's certificate is self-signed certificate
+	transport.TLSClientConfig = &tls.Config{InsecureSkipVerify: true}
+	http2.ConfigureTransport(transport)
+
+	sess, err := session.NewSessionWithOptions(session.Options{
+		Config: aws.Config{
+			HTTPClient:       &http.Client{},
+			Endpoint:         aws.String(endpoint),
+			Region:           aws.String("mock-region"),
+			Credentials:      credentials.AnonymousCredentials,
+			S3ForcePathStyle: aws.Bool(true),
+		},
+	})
+
+	svc := s3.New(sess)
+
+	req, _ := svc.HeadObjectRequest(&s3.HeadObjectInput{
+		Bucket: aws.String("bucketname"),
+		Key:    aws.String("keyname"),
+	})
+
+	if e, a := request.NoBody, req.HTTPRequest.Body; e != a {
+		t.Fatalf("expect %T request body, got %T", e, a)
+	}
+
+	err = req.Send()
+	if err != nil {
+		t.Fatalf("expect no error, got %v", err)
+	}
+	if e, a := http.StatusOK, req.HTTPResponse.StatusCode; e != a {
+		t.Errorf("expect %d status code, got %d", e, a)
+	}
+}

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

+package corehandlers
+
+import "github.com/aws/aws-sdk-go/aws/request"
+
+// ValidateParametersHandler is a request handler to validate the input parameters.
+// Validating parameters only has meaning if done prior to the request being sent.
+var ValidateParametersHandler = request.NamedHandler{Name: "core.ValidateParametersHandler", Fn: func(r *request.Request) {
+	if !r.ParamsFilled() {
+		return
+	}
+
+	if v, ok := r.Params.(request.Validator); ok {
+		if err := v.Validate(); err != nil {
+			r.Error = err
+		}
+	}
+}}

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

+[default]
+aws_access_key_id = accessKey
+aws_secret_access_key = secret
+aws_session_token = token
+
+[no_token]
+aws_access_key_id = accessKey
+aws_secret_access_key = secret
+
+[with_colon]
+aws_access_key_id: accessKey
+aws_secret_access_key: secret

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

+package credentials
+
+import (
+	"github.com/stretchr/testify/assert"
+	"testing"
+)
+
+func TestStaticProviderGet(t *testing.T) {
+	s := StaticProvider{
+		Value: Value{
+			AccessKeyID:     "AKID",
+			SecretAccessKey: "SECRET",
+			SessionToken:    "",
+		},
+	}
+
+	creds, err := s.Retrieve()
+	assert.Nil(t, err, "Expect no error")
+	assert.Equal(t, "AKID", creds.AccessKeyID, "Expect access key ID to match")
+	assert.Equal(t, "SECRET", creds.SecretAccessKey, "Expect secret access key to match")
+	assert.Empty(t, creds.SessionToken, "Expect no session token")
+}
+
+func TestStaticProviderIsExpired(t *testing.T) {
+	s := StaticProvider{
+		Value: Value{
+			AccessKeyID:     "AKID",
+			SecretAccessKey: "SECRET",
+			SessionToken:    "",
+		},
+	}
+
+	assert.False(t, s.IsExpired(), "Expect static credentials to never expire")
+}

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

+package aws
+
+// JSONValue is a representation of a grab bag type that will be marshaled
+// into a json string. This type can be used just like any other map.
+//
+//	Example:
+//
+//	values := aws.JSONValue{
+//		"Foo": "Bar",
+//	}
+//	values["Baz"] = "Qux"
+type JSONValue map[string]interface{}