Add generated file

This PR adds generated files under pkg/client and vendor folder.

vendor/k8s.io/client-go/tools/bootstrap/token/util/helpers.go

@@ -0,0 +1,133 @@
+/*
+Copyright 2017 The Kubernetes Authors.
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+
+package util
+
+import (
+	"bufio"
+	"crypto/rand"
+	"fmt"
+	"regexp"
+	"strings"
+
+	"k8s.io/apimachinery/pkg/util/sets"
+	"k8s.io/client-go/tools/bootstrap/token/api"
+)
+
+// validBootstrapTokenChars defines the characters a bootstrap token can consist of
+const validBootstrapTokenChars = "0123456789abcdefghijklmnopqrstuvwxyz"
+
+var (
+	// BootstrapTokenRegexp is a compiled regular expression of TokenRegexpString
+	BootstrapTokenRegexp = regexp.MustCompile(api.BootstrapTokenPattern)
+	// BootstrapTokenIDRegexp is a compiled regular expression of TokenIDRegexpString
+	BootstrapTokenIDRegexp = regexp.MustCompile(api.BootstrapTokenIDPattern)
+	// BootstrapGroupRegexp is a compiled regular expression of BootstrapGroupPattern
+	BootstrapGroupRegexp = regexp.MustCompile(api.BootstrapGroupPattern)
+)
+
+// GenerateBootstrapToken generates a new, random Bootstrap Token.
+func GenerateBootstrapToken() (string, error) {
+	tokenID, err := randBytes(api.BootstrapTokenIDBytes)
+	if err != nil {
+		return "", err
+	}
+
+	tokenSecret, err := randBytes(api.BootstrapTokenSecretBytes)
+	if err != nil {
+		return "", err
+	}
+
+	return TokenFromIDAndSecret(tokenID, tokenSecret), nil
+}
+
+// randBytes returns a random string consisting of the characters in
+// validBootstrapTokenChars, with the length customized by the parameter
+func randBytes(length int) (string, error) {
+	// len("0123456789abcdefghijklmnopqrstuvwxyz") = 36 which doesn't evenly divide
+	// the possible values of a byte: 256 mod 36 = 4. Discard any random bytes we
+	// read that are >= 252 so the bytes we evenly divide the character set.
+	const maxByteValue = 252
+
+	var (
+		b     byte
+		err   error
+		token = make([]byte, length)
+	)
+
+	reader := bufio.NewReaderSize(rand.Reader, length*2)
+	for i := range token {
+		for {
+			if b, err = reader.ReadByte(); err != nil {
+				return "", err
+			}
+			if b < maxByteValue {
+				break
+			}
+		}
+
+		token[i] = validBootstrapTokenChars[int(b)%len(validBootstrapTokenChars)]
+	}
+
+	return string(token), nil
+}
+
+// TokenFromIDAndSecret returns the full token which is of the form "{id}.{secret}"
+func TokenFromIDAndSecret(id, secret string) string {
+	return fmt.Sprintf("%s.%s", id, secret)
+}
+
+// IsValidBootstrapToken returns whether the given string is valid as a Bootstrap Token and
+// in other words satisfies the BootstrapTokenRegexp
+func IsValidBootstrapToken(token string) bool {
+	return BootstrapTokenRegexp.MatchString(token)
+}
+
+// IsValidBootstrapTokenID returns whether the given string is valid as a Bootstrap Token ID and
+// in other words satisfies the BootstrapTokenIDRegexp
+func IsValidBootstrapTokenID(tokenID string) bool {
+	return BootstrapTokenIDRegexp.MatchString(tokenID)
+}
+
+// BootstrapTokenSecretName returns the expected name for the Secret storing the
+// Bootstrap Token in the Kubernetes API.
+func BootstrapTokenSecretName(tokenID string) string {
+	return fmt.Sprintf("%s%s", api.BootstrapTokenSecretPrefix, tokenID)
+}
+
+// ValidateBootstrapGroupName checks if the provided group name is a valid
+// bootstrap group name. Returns nil if valid or a validation error if invalid.
+func ValidateBootstrapGroupName(name string) error {
+	if BootstrapGroupRegexp.Match([]byte(name)) {
+		return nil
+	}
+	return fmt.Errorf("bootstrap group %q is invalid (must match %s)", name, api.BootstrapGroupPattern)
+}
+
+// ValidateUsages validates that the passed in string are valid usage strings for bootstrap tokens.
+func ValidateUsages(usages []string) error {
+	validUsages := sets.NewString(api.KnownTokenUsages...)
+	invalidUsages := sets.NewString()
+	for _, usage := range usages {
+		if !validUsages.Has(usage) {
+			invalidUsages.Insert(usage)
+		}
+	}
+	if len(invalidUsages) > 0 {
+		return fmt.Errorf("invalid bootstrap token usage string: %s, valid usage options: %s", strings.Join(invalidUsages.List(), ","), strings.Join(api.KnownTokenUsages, ","))
+	}
+	return nil
+}

vendor/k8s.io/client-go/tools/bootstrap/token/util/helpers_test.go

@@ -0,0 +1,213 @@
+/*
+Copyright 2017 The Kubernetes Authors.
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+
+package util
+
+import (
+	"strings"
+	"testing"
+)
+
+func TestGenerateBootstrapToken(t *testing.T) {
+	token, err := GenerateBootstrapToken()
+	if err != nil {
+		t.Fatalf("GenerateBootstrapToken returned an unexpected error: %+v", err)
+	}
+	if !IsValidBootstrapToken(token) {
+		t.Errorf("GenerateBootstrapToken didn't generate a valid token: %q", token)
+	}
+}
+
+func TestRandBytes(t *testing.T) {
+	var randTest = []int{
+		0,
+		1,
+		2,
+		3,
+		100,
+	}
+
+	for _, rt := range randTest {
+		actual, err := randBytes(rt)
+		if err != nil {
+			t.Errorf("failed randBytes: %v", err)
+		}
+		if len(actual) != rt {
+			t.Errorf("failed randBytes:\n\texpected: %d\n\t  actual: %d\n", rt, len(actual))
+		}
+	}
+}
+
+func TestTokenFromIDAndSecret(t *testing.T) {
+	var tests = []struct {
+		id       string
+		secret   string
+		expected string
+	}{
+		{"foo", "bar", "foo.bar"}, // should use default
+		{"abcdef", "abcdef0123456789", "abcdef.abcdef0123456789"},
+		{"h", "b", "h.b"},
+	}
+	for _, rt := range tests {
+		actual := TokenFromIDAndSecret(rt.id, rt.secret)
+		if actual != rt.expected {
+			t.Errorf(
+				"failed TokenFromIDAndSecret:\n\texpected: %s\n\t  actual: %s",
+				rt.expected,
+				actual,
+			)
+		}
+	}
+}
+
+func TestIsValidBootstrapToken(t *testing.T) {
+	var tests = []struct {
+		token    string
+		expected bool
+	}{
+		{token: "", expected: false},
+		{token: ".", expected: false},
+		{token: "1234567890123456789012", expected: false},   // invalid parcel size
+		{token: "12345.1234567890123456", expected: false},   // invalid parcel size
+		{token: ".1234567890123456", expected: false},        // invalid parcel size
+		{token: "123456.", expected: false},                  // invalid parcel size
+		{token: "123456:1234567890.123456", expected: false}, // invalid separation
+		{token: "abcdef:1234567890123456", expected: false},  // invalid separation
+		{token: "Abcdef.1234567890123456", expected: false},  // invalid token id
+		{token: "123456.AABBCCDDEEFFGGHH", expected: false},  // invalid token secret
+		{token: "123456.AABBCCD-EEFFGGHH", expected: false},  // invalid character
+		{token: "abc*ef.1234567890123456", expected: false},  // invalid character
+		{token: "abcdef.1234567890123456", expected: true},
+		{token: "123456.aabbccddeeffgghh", expected: true},
+		{token: "ABCDEF.abcdef0123456789", expected: false},
+		{token: "abcdef.abcdef0123456789", expected: true},
+		{token: "123456.1234560123456789", expected: true},
+	}
+	for _, rt := range tests {
+		actual := IsValidBootstrapToken(rt.token)
+		if actual != rt.expected {
+			t.Errorf(
+				"failed IsValidBootstrapToken for the token %q\n\texpected: %t\n\t  actual: %t",
+				rt.token,
+				rt.expected,
+				actual,
+			)
+		}
+	}
+}
+
+func TestIsValidBootstrapTokenID(t *testing.T) {
+	var tests = []struct {
+		tokenID  string
+		expected bool
+	}{
+		{tokenID: "", expected: false},
+		{tokenID: "1234567890123456789012", expected: false},
+		{tokenID: "12345", expected: false},
+		{tokenID: "Abcdef", expected: false},
+		{tokenID: "ABCDEF", expected: false},
+		{tokenID: "abcdef.", expected: false},
+		{tokenID: "abcdef", expected: true},
+		{tokenID: "123456", expected: true},
+	}
+	for _, rt := range tests {
+		actual := IsValidBootstrapTokenID(rt.tokenID)
+		if actual != rt.expected {
+			t.Errorf(
+				"failed IsValidBootstrapTokenID for the token %q\n\texpected: %t\n\t  actual: %t",
+				rt.tokenID,
+				rt.expected,
+				actual,
+			)
+		}
+	}
+}
+
+func TestBootstrapTokenSecretName(t *testing.T) {
+	var tests = []struct {
+		tokenID  string
+		expected string
+	}{
+		{"foo", "bootstrap-token-foo"},
+		{"bar", "bootstrap-token-bar"},
+		{"", "bootstrap-token-"},
+		{"abcdef", "bootstrap-token-abcdef"},
+	}
+	for _, rt := range tests {
+		actual := BootstrapTokenSecretName(rt.tokenID)
+		if actual != rt.expected {
+			t.Errorf(
+				"failed BootstrapTokenSecretName:\n\texpected: %s\n\t  actual: %s",
+				rt.expected,
+				actual,
+			)
+		}
+	}
+}
+
+func TestValidateBootstrapGroupName(t *testing.T) {
+	tests := []struct {
+		name  string
+		input string
+		valid bool
+	}{
+		{"valid", "system:bootstrappers:foo", true},
+		{"valid nested", "system:bootstrappers:foo:bar:baz", true},
+		{"valid with dashes and number", "system:bootstrappers:foo-bar-42", true},
+		{"invalid uppercase", "system:bootstrappers:Foo", false},
+		{"missing prefix", "foo", false},
+		{"prefix with no body", "system:bootstrappers:", false},
+		{"invalid spaces", "system:bootstrappers: ", false},
+		{"invalid asterisk", "system:bootstrappers:*", false},
+		{"trailing colon", "system:bootstrappers:foo:", false},
+		{"trailing dash", "system:bootstrappers:foo-", false},
+		{"script tags", "system:bootstrappers:<script> alert(\"scary?!\") </script>", false},
+		{"too long", "system:bootstrappers:" + strings.Repeat("x", 300), false},
+	}
+	for _, test := range tests {
+		err := ValidateBootstrapGroupName(test.input)
+		if err != nil && test.valid {
+			t.Errorf("test %q: ValidateBootstrapGroupName(%q) returned unexpected error: %v", test.name, test.input, err)
+		}
+		if err == nil && !test.valid {
+			t.Errorf("test %q: ValidateBootstrapGroupName(%q) was supposed to return an error but didn't", test.name, test.input)
+		}
+	}
+}
+
+func TestValidateUsages(t *testing.T) {
+	tests := []struct {
+		name  string
+		input []string
+		valid bool
+	}{
+		{"valid of signing", []string{"signing"}, true},
+		{"valid of authentication", []string{"authentication"}, true},
+		{"all valid", []string{"authentication", "signing"}, true},
+		{"single invalid", []string{"authentication", "foo"}, false},
+		{"all invalid", []string{"foo", "bar"}, false},
+	}
+
+	for _, test := range tests {
+		err := ValidateUsages(test.input)
+		if err != nil && test.valid {
+			t.Errorf("test %q: ValidateUsages(%v) returned unexpected error: %v", test.name, test.input, err)
+		}
+		if err == nil && !test.valid {
+			t.Errorf("test %q: ValidateUsages(%v) was supposed to return an error but didn't", test.name, test.input)
+		}
+	}
+}