update systemd & dbus dependencies

Update the outdated systemd and dbus dependencies which are now provided
as go modules.  This will further tighten our dependencies and releases
and pave the way for the upcoming auto-update feature.

Signed-off-by: Valentin Rothberg <rothberg@redhat.com>

1 files changed, 817 insertions, 0 deletions

diff --git a/vendor/github.com/godbus/dbus/v5/variant_parser.go b/vendor/github.com/godbus/dbus/v5/variant_parser.go
new file mode 100644
index 000000000..d20f5da6d
--- /dev/null
+++ b/vendor/github.com/godbus/dbus/v5/variant_parser.go
@@ -0,0 +1,817 @@
+package dbus
+
+import (
+	"bytes"
+	"errors"
+	"fmt"
+	"io"
+	"reflect"
+	"strconv"
+	"strings"
+	"unicode/utf8"
+)
+
+type varParser struct {
+	tokens []varToken
+	i      int
+}
+
+func (p *varParser) backup() {
+	p.i--
+}
+
+func (p *varParser) next() varToken {
+	if p.i < len(p.tokens) {
+		t := p.tokens[p.i]
+		p.i++
+		return t
+	}
+	return varToken{typ: tokEOF}
+}
+
+type varNode interface {
+	Infer() (Signature, error)
+	String() string
+	Sigs() sigSet
+	Value(Signature) (interface{}, error)
+}
+
+func varMakeNode(p *varParser) (varNode, error) {
+	var sig Signature
+
+	for {
+		t := p.next()
+		switch t.typ {
+		case tokEOF:
+			return nil, io.ErrUnexpectedEOF
+		case tokError:
+			return nil, errors.New(t.val)
+		case tokNumber:
+			return varMakeNumNode(t, sig)
+		case tokString:
+			return varMakeStringNode(t, sig)
+		case tokBool:
+			if sig.str != "" && sig.str != "b" {
+				return nil, varTypeError{t.val, sig}
+			}
+			b, err := strconv.ParseBool(t.val)
+			if err != nil {
+				return nil, err
+			}
+			return boolNode(b), nil
+		case tokArrayStart:
+			return varMakeArrayNode(p, sig)
+		case tokVariantStart:
+			return varMakeVariantNode(p, sig)
+		case tokDictStart:
+			return varMakeDictNode(p, sig)
+		case tokType:
+			if sig.str != "" {
+				return nil, errors.New("unexpected type annotation")
+			}
+			if t.val[0] == '@' {
+				sig.str = t.val[1:]
+			} else {
+				sig.str = varTypeMap[t.val]
+			}
+		case tokByteString:
+			if sig.str != "" && sig.str != "ay" {
+				return nil, varTypeError{t.val, sig}
+			}
+			b, err := varParseByteString(t.val)
+			if err != nil {
+				return nil, err
+			}
+			return byteStringNode(b), nil
+		default:
+			return nil, fmt.Errorf("unexpected %q", t.val)
+		}
+	}
+}
+
+type varTypeError struct {
+	val string
+	sig Signature
+}
+
+func (e varTypeError) Error() string {
+	return fmt.Sprintf("dbus: can't parse %q as type %q", e.val, e.sig.str)
+}
+
+type sigSet map[Signature]bool
+
+func (s sigSet) Empty() bool {
+	return len(s) == 0
+}
+
+func (s sigSet) Intersect(s2 sigSet) sigSet {
+	r := make(sigSet)
+	for k := range s {
+		if s2[k] {
+			r[k] = true
+		}
+	}
+	return r
+}
+
+func (s sigSet) Single() (Signature, bool) {
+	if len(s) == 1 {
+		for k := range s {
+			return k, true
+		}
+	}
+	return Signature{}, false
+}
+
+func (s sigSet) ToArray() sigSet {
+	r := make(sigSet, len(s))
+	for k := range s {
+		r[Signature{"a" + k.str}] = true
+	}
+	return r
+}
+
+type numNode struct {
+	sig Signature
+	str string
+	val interface{}
+}
+
+var numSigSet = sigSet{
+	Signature{"y"}: true,
+	Signature{"n"}: true,
+	Signature{"q"}: true,
+	Signature{"i"}: true,
+	Signature{"u"}: true,
+	Signature{"x"}: true,
+	Signature{"t"}: true,
+	Signature{"d"}: true,
+}
+
+func (n numNode) Infer() (Signature, error) {
+	if strings.ContainsAny(n.str, ".e") {
+		return Signature{"d"}, nil
+	}
+	return Signature{"i"}, nil
+}
+
+func (n numNode) String() string {
+	return n.str
+}
+
+func (n numNode) Sigs() sigSet {
+	if n.sig.str != "" {
+		return sigSet{n.sig: true}
+	}
+	if strings.ContainsAny(n.str, ".e") {
+		return sigSet{Signature{"d"}: true}
+	}
+	return numSigSet
+}
+
+func (n numNode) Value(sig Signature) (interface{}, error) {
+	if n.sig.str != "" && n.sig != sig {
+		return nil, varTypeError{n.str, sig}
+	}
+	if n.val != nil {
+		return n.val, nil
+	}
+	return varNumAs(n.str, sig)
+}
+
+func varMakeNumNode(tok varToken, sig Signature) (varNode, error) {
+	if sig.str == "" {
+		return numNode{str: tok.val}, nil
+	}
+	num, err := varNumAs(tok.val, sig)
+	if err != nil {
+		return nil, err
+	}
+	return numNode{sig: sig, val: num}, nil
+}
+
+func varNumAs(s string, sig Signature) (interface{}, error) {
+	isUnsigned := false
+	size := 32
+	switch sig.str {
+	case "n":
+		size = 16
+	case "i":
+	case "x":
+		size = 64
+	case "y":
+		size = 8
+		isUnsigned = true
+	case "q":
+		size = 16
+		isUnsigned = true
+	case "u":
+		isUnsigned = true
+	case "t":
+		size = 64
+		isUnsigned = true
+	case "d":
+		d, err := strconv.ParseFloat(s, 64)
+		if err != nil {
+			return nil, err
+		}
+		return d, nil
+	default:
+		return nil, varTypeError{s, sig}
+	}
+	base := 10
+	if strings.HasPrefix(s, "0x") {
+		base = 16
+		s = s[2:]
+	}
+	if strings.HasPrefix(s, "0") && len(s) != 1 {
+		base = 8
+		s = s[1:]
+	}
+	if isUnsigned {
+		i, err := strconv.ParseUint(s, base, size)
+		if err != nil {
+			return nil, err
+		}
+		var v interface{} = i
+		switch sig.str {
+		case "y":
+			v = byte(i)
+		case "q":
+			v = uint16(i)
+		case "u":
+			v = uint32(i)
+		}
+		return v, nil
+	}
+	i, err := strconv.ParseInt(s, base, size)
+	if err != nil {
+		return nil, err
+	}
+	var v interface{} = i
+	switch sig.str {
+	case "n":
+		v = int16(i)
+	case "i":
+		v = int32(i)
+	}
+	return v, nil
+}
+
+type stringNode struct {
+	sig Signature
+	str string      // parsed
+	val interface{} // has correct type
+}
+
+var stringSigSet = sigSet{
+	Signature{"s"}: true,
+	Signature{"g"}: true,
+	Signature{"o"}: true,
+}
+
+func (n stringNode) Infer() (Signature, error) {
+	return Signature{"s"}, nil
+}
+
+func (n stringNode) String() string {
+	return n.str
+}
+
+func (n stringNode) Sigs() sigSet {
+	if n.sig.str != "" {
+		return sigSet{n.sig: true}
+	}
+	return stringSigSet
+}
+
+func (n stringNode) Value(sig Signature) (interface{}, error) {
+	if n.sig.str != "" && n.sig != sig {
+		return nil, varTypeError{n.str, sig}
+	}
+	if n.val != nil {
+		return n.val, nil
+	}
+	switch {
+	case sig.str == "g":
+		return Signature{n.str}, nil
+	case sig.str == "o":
+		return ObjectPath(n.str), nil
+	case sig.str == "s":
+		return n.str, nil
+	default:
+		return nil, varTypeError{n.str, sig}
+	}
+}
+
+func varMakeStringNode(tok varToken, sig Signature) (varNode, error) {
+	if sig.str != "" && sig.str != "s" && sig.str != "g" && sig.str != "o" {
+		return nil, fmt.Errorf("invalid type %q for string", sig.str)
+	}
+	s, err := varParseString(tok.val)
+	if err != nil {
+		return nil, err
+	}
+	n := stringNode{str: s}
+	if sig.str == "" {
+		return stringNode{str: s}, nil
+	}
+	n.sig = sig
+	switch sig.str {
+	case "o":
+		n.val = ObjectPath(s)
+	case "g":
+		n.val = Signature{s}
+	case "s":
+		n.val = s
+	}
+	return n, nil
+}
+
+func varParseString(s string) (string, error) {
+	// quotes are guaranteed to be there
+	s = s[1 : len(s)-1]
+	buf := new(bytes.Buffer)
+	for len(s) != 0 {
+		r, size := utf8.DecodeRuneInString(s)
+		if r == utf8.RuneError && size == 1 {
+			return "", errors.New("invalid UTF-8")
+		}
+		s = s[size:]
+		if r != '\\' {
+			buf.WriteRune(r)
+			continue
+		}
+		r, size = utf8.DecodeRuneInString(s)
+		if r == utf8.RuneError && size == 1 {
+			return "", errors.New("invalid UTF-8")
+		}
+		s = s[size:]
+		switch r {
+		case 'a':
+			buf.WriteRune(0x7)
+		case 'b':
+			buf.WriteRune(0x8)
+		case 'f':
+			buf.WriteRune(0xc)
+		case 'n':
+			buf.WriteRune('\n')
+		case 'r':
+			buf.WriteRune('\r')
+		case 't':
+			buf.WriteRune('\t')
+		case '\n':
+		case 'u':
+			if len(s) < 4 {
+				return "", errors.New("short unicode escape")
+			}
+			r, err := strconv.ParseUint(s[:4], 16, 32)
+			if err != nil {
+				return "", err
+			}
+			buf.WriteRune(rune(r))
+			s = s[4:]
+		case 'U':
+			if len(s) < 8 {
+				return "", errors.New("short unicode escape")
+			}
+			r, err := strconv.ParseUint(s[:8], 16, 32)
+			if err != nil {
+				return "", err
+			}
+			buf.WriteRune(rune(r))
+			s = s[8:]
+		default:
+			buf.WriteRune(r)
+		}
+	}
+	return buf.String(), nil
+}
+
+var boolSigSet = sigSet{Signature{"b"}: true}
+
+type boolNode bool
+
+func (boolNode) Infer() (Signature, error) {
+	return Signature{"b"}, nil
+}
+
+func (b boolNode) String() string {
+	if b {
+		return "true"
+	}
+	return "false"
+}
+
+func (boolNode) Sigs() sigSet {
+	return boolSigSet
+}
+
+func (b boolNode) Value(sig Signature) (interface{}, error) {
+	if sig.str != "b" {
+		return nil, varTypeError{b.String(), sig}
+	}
+	return bool(b), nil
+}
+
+type arrayNode struct {
+	set      sigSet
+	children []varNode
+	val      interface{}
+}
+
+func (n arrayNode) Infer() (Signature, error) {
+	for _, v := range n.children {
+		csig, err := varInfer(v)
+		if err != nil {
+			continue
+		}
+		return Signature{"a" + csig.str}, nil
+	}
+	return Signature{}, fmt.Errorf("can't infer type for %q", n.String())
+}
+
+func (n arrayNode) String() string {
+	s := "["
+	for i, v := range n.children {
+		s += v.String()
+		if i != len(n.children)-1 {
+			s += ", "
+		}
+	}
+	return s + "]"
+}
+
+func (n arrayNode) Sigs() sigSet {
+	return n.set
+}
+
+func (n arrayNode) Value(sig Signature) (interface{}, error) {
+	if n.set.Empty() {
+		// no type information whatsoever, so this must be an empty slice
+		return reflect.MakeSlice(typeFor(sig.str), 0, 0).Interface(), nil
+	}
+	if !n.set[sig] {
+		return nil, varTypeError{n.String(), sig}
+	}
+	s := reflect.MakeSlice(typeFor(sig.str), len(n.children), len(n.children))
+	for i, v := range n.children {
+		rv, err := v.Value(Signature{sig.str[1:]})
+		if err != nil {
+			return nil, err
+		}
+		s.Index(i).Set(reflect.ValueOf(rv))
+	}
+	return s.Interface(), nil
+}
+
+func varMakeArrayNode(p *varParser, sig Signature) (varNode, error) {
+	var n arrayNode
+	if sig.str != "" {
+		n.set = sigSet{sig: true}
+	}
+	if t := p.next(); t.typ == tokArrayEnd {
+		return n, nil
+	} else {
+		p.backup()
+	}
+Loop:
+	for {
+		t := p.next()
+		switch t.typ {
+		case tokEOF:
+			return nil, io.ErrUnexpectedEOF
+		case tokError:
+			return nil, errors.New(t.val)
+		}
+		p.backup()
+		cn, err := varMakeNode(p)
+		if err != nil {
+			return nil, err
+		}
+		if cset := cn.Sigs(); !cset.Empty() {
+			if n.set.Empty() {
+				n.set = cset.ToArray()
+			} else {
+				nset := cset.ToArray().Intersect(n.set)
+				if nset.Empty() {
+					return nil, fmt.Errorf("can't parse %q with given type information", cn.String())
+				}
+				n.set = nset
+			}
+		}
+		n.children = append(n.children, cn)
+		switch t := p.next(); t.typ {
+		case tokEOF:
+			return nil, io.ErrUnexpectedEOF
+		case tokError:
+			return nil, errors.New(t.val)
+		case tokArrayEnd:
+			break Loop
+		case tokComma:
+			continue
+		default:
+			return nil, fmt.Errorf("unexpected %q", t.val)
+		}
+	}
+	return n, nil
+}
+
+type variantNode struct {
+	n varNode
+}
+
+var variantSet = sigSet{
+	Signature{"v"}: true,
+}
+
+func (variantNode) Infer() (Signature, error) {
+	return Signature{"v"}, nil
+}
+
+func (n variantNode) String() string {
+	return "<" + n.n.String() + ">"
+}
+
+func (variantNode) Sigs() sigSet {
+	return variantSet
+}
+
+func (n variantNode) Value(sig Signature) (interface{}, error) {
+	if sig.str != "v" {
+		return nil, varTypeError{n.String(), sig}
+	}
+	sig, err := varInfer(n.n)
+	if err != nil {
+		return nil, err
+	}
+	v, err := n.n.Value(sig)
+	if err != nil {
+		return nil, err
+	}
+	return MakeVariant(v), nil
+}
+
+func varMakeVariantNode(p *varParser, sig Signature) (varNode, error) {
+	n, err := varMakeNode(p)
+	if err != nil {
+		return nil, err
+	}
+	if t := p.next(); t.typ != tokVariantEnd {
+		return nil, fmt.Errorf("unexpected %q", t.val)
+	}
+	vn := variantNode{n}
+	if sig.str != "" && sig.str != "v" {
+		return nil, varTypeError{vn.String(), sig}
+	}
+	return variantNode{n}, nil
+}
+
+type dictEntry struct {
+	key, val varNode
+}
+
+type dictNode struct {
+	kset, vset sigSet
+	children   []dictEntry
+	val        interface{}
+}
+
+func (n dictNode) Infer() (Signature, error) {
+	for _, v := range n.children {
+		ksig, err := varInfer(v.key)
+		if err != nil {
+			continue
+		}
+		vsig, err := varInfer(v.val)
+		if err != nil {
+			continue
+		}
+		return Signature{"a{" + ksig.str + vsig.str + "}"}, nil
+	}
+	return Signature{}, fmt.Errorf("can't infer type for %q", n.String())
+}
+
+func (n dictNode) String() string {
+	s := "{"
+	for i, v := range n.children {
+		s += v.key.String() + ": " + v.val.String()
+		if i != len(n.children)-1 {
+			s += ", "
+		}
+	}
+	return s + "}"
+}
+
+func (n dictNode) Sigs() sigSet {
+	r := sigSet{}
+	for k := range n.kset {
+		for v := range n.vset {
+			sig := "a{" + k.str + v.str + "}"
+			r[Signature{sig}] = true
+		}
+	}
+	return r
+}
+
+func (n dictNode) Value(sig Signature) (interface{}, error) {
+	set := n.Sigs()
+	if set.Empty() {
+		// no type information -> empty dict
+		return reflect.MakeMap(typeFor(sig.str)).Interface(), nil
+	}
+	if !set[sig] {
+		return nil, varTypeError{n.String(), sig}
+	}
+	m := reflect.MakeMap(typeFor(sig.str))
+	ksig := Signature{sig.str[2:3]}
+	vsig := Signature{sig.str[3 : len(sig.str)-1]}
+	for _, v := range n.children {
+		kv, err := v.key.Value(ksig)
+		if err != nil {
+			return nil, err
+		}
+		vv, err := v.val.Value(vsig)
+		if err != nil {
+			return nil, err
+		}
+		m.SetMapIndex(reflect.ValueOf(kv), reflect.ValueOf(vv))
+	}
+	return m.Interface(), nil
+}
+
+func varMakeDictNode(p *varParser, sig Signature) (varNode, error) {
+	var n dictNode
+
+	if sig.str != "" {
+		if len(sig.str) < 5 {
+			return nil, fmt.Errorf("invalid signature %q for dict type", sig)
+		}
+		ksig := Signature{string(sig.str[2])}
+		vsig := Signature{sig.str[3 : len(sig.str)-1]}
+		n.kset = sigSet{ksig: true}
+		n.vset = sigSet{vsig: true}
+	}
+	if t := p.next(); t.typ == tokDictEnd {
+		return n, nil
+	} else {
+		p.backup()
+	}
+Loop:
+	for {
+		t := p.next()
+		switch t.typ {
+		case tokEOF:
+			return nil, io.ErrUnexpectedEOF
+		case tokError:
+			return nil, errors.New(t.val)
+		}
+		p.backup()
+		kn, err := varMakeNode(p)
+		if err != nil {
+			return nil, err
+		}
+		if kset := kn.Sigs(); !kset.Empty() {
+			if n.kset.Empty() {
+				n.kset = kset
+			} else {
+				n.kset = kset.Intersect(n.kset)
+				if n.kset.Empty() {
+					return nil, fmt.Errorf("can't parse %q with given type information", kn.String())
+				}
+			}
+		}
+		t = p.next()
+		switch t.typ {
+		case tokEOF:
+			return nil, io.ErrUnexpectedEOF
+		case tokError:
+			return nil, errors.New(t.val)
+		case tokColon:
+		default:
+			return nil, fmt.Errorf("unexpected %q", t.val)
+		}
+		t = p.next()
+		switch t.typ {
+		case tokEOF:
+			return nil, io.ErrUnexpectedEOF
+		case tokError:
+			return nil, errors.New(t.val)
+		}
+		p.backup()
+		vn, err := varMakeNode(p)
+		if err != nil {
+			return nil, err
+		}
+		if vset := vn.Sigs(); !vset.Empty() {
+			if n.vset.Empty() {
+				n.vset = vset
+			} else {
+				n.vset = n.vset.Intersect(vset)
+				if n.vset.Empty() {
+					return nil, fmt.Errorf("can't parse %q with given type information", vn.String())
+				}
+			}
+		}
+		n.children = append(n.children, dictEntry{kn, vn})
+		t = p.next()
+		switch t.typ {
+		case tokEOF:
+			return nil, io.ErrUnexpectedEOF
+		case tokError:
+			return nil, errors.New(t.val)
+		case tokDictEnd:
+			break Loop
+		case tokComma:
+			continue
+		default:
+			return nil, fmt.Errorf("unexpected %q", t.val)
+		}
+	}
+	return n, nil
+}
+
+type byteStringNode []byte
+
+var byteStringSet = sigSet{
+	Signature{"ay"}: true,
+}
+
+func (byteStringNode) Infer() (Signature, error) {
+	return Signature{"ay"}, nil
+}
+
+func (b byteStringNode) String() string {
+	return string(b)
+}
+
+func (b byteStringNode) Sigs() sigSet {
+	return byteStringSet
+}
+
+func (b byteStringNode) Value(sig Signature) (interface{}, error) {
+	if sig.str != "ay" {
+		return nil, varTypeError{b.String(), sig}
+	}
+	return []byte(b), nil
+}
+
+func varParseByteString(s string) ([]byte, error) {
+	// quotes and b at start are guaranteed to be there
+	b := make([]byte, 0, 1)
+	s = s[2 : len(s)-1]
+	for len(s) != 0 {
+		c := s[0]
+		s = s[1:]
+		if c != '\\' {
+			b = append(b, c)
+			continue
+		}
+		c = s[0]
+		s = s[1:]
+		switch c {
+		case 'a':
+			b = append(b, 0x7)
+		case 'b':
+			b = append(b, 0x8)
+		case 'f':
+			b = append(b, 0xc)
+		case 'n':
+			b = append(b, '\n')
+		case 'r':
+			b = append(b, '\r')
+		case 't':
+			b = append(b, '\t')
+		case 'x':
+			if len(s) < 2 {
+				return nil, errors.New("short escape")
+			}
+			n, err := strconv.ParseUint(s[:2], 16, 8)
+			if err != nil {
+				return nil, err
+			}
+			b = append(b, byte(n))
+			s = s[2:]
+		case '0':
+			if len(s) < 3 {
+				return nil, errors.New("short escape")
+			}
+			n, err := strconv.ParseUint(s[:3], 8, 8)
+			if err != nil {
+				return nil, err
+			}
+			b = append(b, byte(n))
+			s = s[3:]
+		default:
+			b = append(b, c)
+		}
+	}
+	return append(b, 0), nil
+}
+
+func varInfer(n varNode) (Signature, error) {
+	if sig, ok := n.Sigs().Single(); ok {
+		return sig, nil
+	}
+	return n.Infer()
+}