Add implementation of URIs for KMS.
Implementation is based on the PKCS #11 URI Scheme RFC https://tools.ietf.org/html/rfc7512pull/267/head
Mariano Cano
4 years ago
parent
2bc69d3edd
commit
b0f768a3fb
@ -0,0 +1,86 @@
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package uri
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import (
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"net/url"
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"strings"
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"github.com/pkg/errors"
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)
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// URI implements a parser for a URI format based on the the PKCS #11 URI Scheme
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// defined in https://tools.ietf.org/html/rfc7512
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//
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// These URIs will be used to define the key names in a KMS.
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type URI struct {
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*url.URL
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Values url.Values
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}
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// New creates a new URI from a scheme and key-value pairs.
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func New(scheme string, values url.Values) *URI {
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return &URI{
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URL: &url.URL{
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Scheme: scheme,
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Opaque: strings.ReplaceAll(values.Encode(), "&", ";"),
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},
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Values: values,
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}
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}
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// NewFile creates an uri for a file.
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func NewFile(path string) *URI {
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return &URI{
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URL: &url.URL{
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Scheme: "file",
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Path: path,
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},
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}
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}
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// HasScheme returns true if the given uri has the given scheme, false otherwise.
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func HasScheme(scheme, rawuri string) bool {
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u, err := url.Parse(rawuri)
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if err != nil {
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return false
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}
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return strings.EqualFold(u.Scheme, scheme)
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}
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// Parse returns the URI for the given string or an error.
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func Parse(rawuri string) (*URI, error) {
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u, err := url.Parse(rawuri)
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if err != nil {
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return nil, errors.Wrapf(err, "error parsing %s", rawuri)
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}
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if u.Scheme == "" {
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return nil, errors.Errorf("error parsing %s: scheme is missing", rawuri)
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}
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v, err := url.ParseQuery(u.Opaque)
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if err != nil {
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return nil, errors.Wrapf(err, "error parsing %s", rawuri)
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}
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return &URI{
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URL: u,
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Values: v,
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}, nil
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}
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// ParseWithScheme returns the URI for the given string only if it has the given
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// scheme.
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func ParseWithScheme(scheme, rawuri string) (*URI, error) {
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u, err := Parse(rawuri)
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if err != nil {
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return nil, err
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}
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if !strings.EqualFold(u.Scheme, scheme) {
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return nil, errors.Errorf("error parsing %s: scheme not expected", rawuri)
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}
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return u, nil
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}
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// Get returns the first value in the uri with the give n key, it will return
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// empty string if that field is not present.
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func (u *URI) Get(key string) string {
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return u.Values.Get(key)
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}
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@ -0,0 +1,198 @@
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package uri
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import (
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"net/url"
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"reflect"
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"testing"
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)
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func TestNew(t *testing.T) {
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type args struct {
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scheme string
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values url.Values
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}
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tests := []struct {
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name string
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args args
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want *URI
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}{
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{"ok", args{"yubikey", url.Values{"slot-id": []string{"9a"}}}, &URI{
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URL: &url.URL{Scheme: "yubikey", Opaque: "slot-id=9a"},
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Values: url.Values{"slot-id": []string{"9a"}},
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}},
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{"ok multiple", args{"yubikey", url.Values{"slot-id": []string{"9a"}, "foo": []string{"bar"}}}, &URI{
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URL: &url.URL{Scheme: "yubikey", Opaque: "foo=bar;slot-id=9a"},
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Values: url.Values{
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"slot-id": []string{"9a"},
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"foo": []string{"bar"},
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},
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}},
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}
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for _, tt := range tests {
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t.Run(tt.name, func(t *testing.T) {
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if got := New(tt.args.scheme, tt.args.values); !reflect.DeepEqual(got, tt.want) {
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t.Errorf("New() = %v, want %v", got, tt.want)
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}
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})
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}
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}
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func TestNewFile(t *testing.T) {
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type args struct {
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path string
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}
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tests := []struct {
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name string
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args args
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want *URI
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}{
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{"ok", args{"/tmp/ca.crt"}, &URI{
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URL: &url.URL{Scheme: "file", Path: "/tmp/ca.crt"},
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Values: url.Values(nil),
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}},
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}
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for _, tt := range tests {
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t.Run(tt.name, func(t *testing.T) {
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if got := NewFile(tt.args.path); !reflect.DeepEqual(got, tt.want) {
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t.Errorf("NewFile() = %v, want %v", got, tt.want)
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}
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})
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}
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}
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func TestHasScheme(t *testing.T) {
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type args struct {
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scheme string
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rawuri string
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}
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tests := []struct {
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name string
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args args
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want bool
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}{
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{"ok", args{"yubikey", "yubikey:slot-id=9a"}, true},
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{"ok empty", args{"yubikey", "yubikey:"}, true},
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{"ok letter case", args{"awsKMS", "AWSkms:key-id=abcdefg?foo=bar"}, true},
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{"fail", args{"yubikey", "awskms:key-id=abcdefg"}, false},
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{"fail parse", args{"yubikey", "yubi%key:slot-id=9a"}, false},
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}
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for _, tt := range tests {
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t.Run(tt.name, func(t *testing.T) {
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if got := HasScheme(tt.args.scheme, tt.args.rawuri); got != tt.want {
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t.Errorf("HasScheme() = %v, want %v", got, tt.want)
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}
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})
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}
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}
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func TestParse(t *testing.T) {
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type args struct {
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rawuri string
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}
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tests := []struct {
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name string
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args args
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want *URI
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wantErr bool
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}{
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{"ok", args{"yubikey:slot-id=9a"}, &URI{
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URL: &url.URL{Scheme: "yubikey", Opaque: "slot-id=9a"},
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Values: url.Values{"slot-id": []string{"9a"}},
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}, false},
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{"ok file", args{"file:///tmp/ca.cert"}, &URI{
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URL: &url.URL{Scheme: "file", Path: "/tmp/ca.cert"},
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Values: url.Values{},
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}, false},
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{"ok file simple", args{"file:/tmp/ca.cert"}, &URI{
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URL: &url.URL{Scheme: "file", Path: "/tmp/ca.cert"},
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Values: url.Values{},
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}, false},
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{"ok file host", args{"file://tmp/ca.cert"}, &URI{
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URL: &url.URL{Scheme: "file", Host: "tmp", Path: "/ca.cert"},
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Values: url.Values{},
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}, false},
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{"fail parse", args{"yubi%key:slot-id=9a"}, nil, true},
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{"fail scheme", args{"yubikey"}, nil, true},
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{"fail parse opaque", args{"yubikey:slot-id=%ZZ"}, nil, true},
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}
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for _, tt := range tests {
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t.Run(tt.name, func(t *testing.T) {
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got, err := Parse(tt.args.rawuri)
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if (err != nil) != tt.wantErr {
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t.Errorf("Parse() error = %v, wantErr %v", err, tt.wantErr)
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return
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}
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if !reflect.DeepEqual(got, tt.want) {
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t.Errorf("Parse() = %#v, want %v", got.URL, tt.want)
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}
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})
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}
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}
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func TestParseWithScheme(t *testing.T) {
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type args struct {
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scheme string
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rawuri string
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}
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tests := []struct {
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name string
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args args
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want *URI
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wantErr bool
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}{
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{"ok", args{"yubikey", "yubikey:slot-id=9a"}, &URI{
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URL: &url.URL{Scheme: "yubikey", Opaque: "slot-id=9a"},
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Values: url.Values{"slot-id": []string{"9a"}},
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}, false},
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{"ok file", args{"file", "file:///tmp/ca.cert"}, &URI{
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URL: &url.URL{Scheme: "file", Path: "/tmp/ca.cert"},
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Values: url.Values{},
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}, false},
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{"fail parse", args{"yubikey", "yubikey"}, nil, true},
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{"fail scheme", args{"yubikey", "awskms:slot-id=9a"}, nil, true},
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}
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for _, tt := range tests {
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t.Run(tt.name, func(t *testing.T) {
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got, err := ParseWithScheme(tt.args.scheme, tt.args.rawuri)
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if (err != nil) != tt.wantErr {
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t.Errorf("ParseWithScheme() error = %v, wantErr %v", err, tt.wantErr)
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return
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}
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if !reflect.DeepEqual(got, tt.want) {
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t.Errorf("ParseWithScheme() = %v, want %v", got, tt.want)
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}
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})
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}
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}
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func TestURI_Get(t *testing.T) {
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mustParse := func(s string) *URI {
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u, err := Parse(s)
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if err != nil {
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t.Fatal(err)
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}
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return u
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}
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type args struct {
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key string
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}
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tests := []struct {
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name string
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uri *URI
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args args
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want string
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}{
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{"ok", mustParse("yubikey:slot-id=9a"), args{"slot-id"}, "9a"},
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{"ok first", mustParse("yubikey:slot-id=9a;slot-id=9b"), args{"slot-id"}, "9a"},
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{"ok multiple", mustParse("yubikey:slot-id=9a;foo=bar"), args{"foo"}, "bar"},
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{"fail missing", mustParse("yubikey:slot-id=9a"), args{"foo"}, ""},
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{"fail in query", mustParse("yubikey:slot-id=9a?foo=bar"), args{"foo"}, ""},
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}
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for _, tt := range tests {
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t.Run(tt.name, func(t *testing.T) {
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if got := tt.uri.Get(tt.args.key); got != tt.want {
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t.Errorf("URI.Get() = %v, want %v", got, tt.want)
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}
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})
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}
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}
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