Updating dependancies. (#9303)

9 files changed, 94 insertions, 84 deletions

diff --git a/vendor/golang.org/x/net/html/parse.go b/vendor/golang.org/x/net/html/parse.go
index 7e539b123..bbe01164e 100644
--- a/vendor/golang.org/x/net/html/parse.go
+++ b/vendor/golang.org/x/net/html/parse.go
@@ -209,27 +209,6 @@ loop:
 	p.oe = p.oe[:i+1]
 }
 
-// generateAllImpliedEndTags pops nodes off the stack of open elements as long as
-// the top node has a tag name of caption, colgroup, dd, div, dt, li, optgroup, option, p, rb,
-// rp, rt, rtc, span, tbody, td, tfoot, th, thead or tr.
-func (p *parser) generateAllImpliedEndTags() {
-	var i int
-	for i = len(p.oe) - 1; i >= 0; i-- {
-		n := p.oe[i]
-		if n.Type == ElementNode {
-			switch n.DataAtom {
-			// TODO: remove this divergence from the HTML5 spec
-			case a.Caption, a.Colgroup, a.Dd, a.Div, a.Dt, a.Li, a.Optgroup, a.Option, a.P, a.Rb,
-				a.Rp, a.Rt, a.Rtc, a.Span, a.Tbody, a.Td, a.Tfoot, a.Th, a.Thead, a.Tr:
-				continue
-			}
-		}
-		break
-	}
-
-	p.oe = p.oe[:i+1]
-}
-
 // addChild adds a child node n to the top element, and pushes n onto the stack
 // of open elements if it is an element node.
 func (p *parser) addChild(n *Node) {
@@ -679,11 +658,16 @@ func inHeadIM(p *parser) bool {
 			if !p.oe.contains(a.Template) {
 				return true
 			}
-			p.generateAllImpliedEndTags()
-			if n := p.oe.top(); n.DataAtom != a.Template {
-				return true
+			// TODO: remove this divergence from the HTML5 spec.
+			//
+			// See https://bugs.chromium.org/p/chromium/issues/detail?id=829668
+			p.generateImpliedEndTags()
+			for i := len(p.oe) - 1; i >= 0; i-- {
+				if n := p.oe[i]; n.Namespace == "" && n.DataAtom == a.Template {
+					p.oe = p.oe[:i]
+					break
+				}
 			}
-			p.popUntil(defaultScope, a.Template)
 			p.clearActiveFormattingElements()
 			p.templateStack.pop()
 			p.resetInsertionMode()
@@ -1074,13 +1058,7 @@ func inBodyIM(p *parser) bool {
 				p.acknowledgeSelfClosingTag()
 			}
 			return true
-		case a.Frame:
-			// TODO: remove this divergence from the HTML5 spec.
-			if p.oe.contains(a.Template) {
-				p.addElement()
-				return true
-			}
-		case a.Caption, a.Col, a.Colgroup, a.Head, a.Tbody, a.Td, a.Tfoot, a.Th, a.Thead, a.Tr:
+		case a.Caption, a.Col, a.Colgroup, a.Frame, a.Head, a.Tbody, a.Td, a.Tfoot, a.Th, a.Thead, a.Tr:
 			// Ignore the token.
 		default:
 			p.reconstructActiveFormattingElements()
@@ -1351,9 +1329,6 @@ func textIM(p *parser) bool {
 // Section 12.2.6.4.9.
 func inTableIM(p *parser) bool {
 	switch p.tok.Type {
-	case ErrorToken:
-		// Stop parsing.
-		return true
 	case TextToken:
 		p.tok.Data = strings.Replace(p.tok.Data, "\x00", "", -1)
 		switch p.oe.top().DataAtom {
@@ -1448,6 +1423,8 @@ func inTableIM(p *parser) bool {
 	case DoctypeToken:
 		// Ignore the token.
 		return true
+	case ErrorToken:
+		return inBodyIM(p)
 	}
 
 	p.fosterParenting = true
@@ -1550,6 +1527,8 @@ func inColumnGroupIM(p *parser) bool {
 		case a.Template:
 			return inHeadIM(p)
 		}
+	case ErrorToken:
+		return inBodyIM(p)
 	}
 	if p.oe.top().DataAtom != a.Colgroup {
 		return true
@@ -1714,9 +1693,6 @@ func inCellIM(p *parser) bool {
 // Section 12.2.6.4.16.
 func inSelectIM(p *parser) bool {
 	switch p.tok.Type {
-	case ErrorToken:
-		// Stop parsing.
-		return true
 	case TextToken:
 		p.addText(strings.Replace(p.tok.Data, "\x00", "", -1))
 	case StartTagToken:
@@ -1780,6 +1756,8 @@ func inSelectIM(p *parser) bool {
 	case DoctypeToken:
 		// Ignore the token.
 		return true
+	case ErrorToken:
+		return inBodyIM(p)
 	}
 
 	return true
@@ -1846,15 +1824,26 @@ func inTemplateIM(p *parser) bool {
 			// Ignore the token.
 			return true
 		}
+	case ErrorToken:
+		if !p.oe.contains(a.Template) {
+			// Ignore the token.
+			return true
+		}
+		// TODO: remove this divergence from the HTML5 spec.
+		//
+		// See https://bugs.chromium.org/p/chromium/issues/detail?id=829668
+		p.generateImpliedEndTags()
+		for i := len(p.oe) - 1; i >= 0; i-- {
+			if n := p.oe[i]; n.Namespace == "" && n.DataAtom == a.Template {
+				p.oe = p.oe[:i]
+				break
+			}
+		}
+		p.clearActiveFormattingElements()
+		p.templateStack.pop()
+		p.resetInsertionMode()
+		return false
 	}
-	if !p.oe.contains(a.Template) {
-		// Ignore the token.
-		return true
-	}
-	p.popUntil(defaultScope, a.Template)
-	p.clearActiveFormattingElements()
-	p.templateStack.pop()
-	p.resetInsertionMode()
 	return false
 }
 
@@ -1928,11 +1917,6 @@ func inFramesetIM(p *parser) bool {
 			p.acknowledgeSelfClosingTag()
 		case a.Noframes:
 			return inHeadIM(p)
-		case a.Template:
-			// TODO: remove this divergence from the HTML5 spec.
-			//
-			// See https://bugs.chromium.org/p/chromium/issues/detail?id=829668
-			return inTemplateIM(p)
 		}
 	case EndTagToken:
 		switch p.tok.DataAtom {
diff --git a/vendor/golang.org/x/net/http2/headermap.go b/vendor/golang.org/x/net/http2/headermap.go
index c2805f6ac..c3ff3fa1c 100644
--- a/vendor/golang.org/x/net/http2/headermap.go
+++ b/vendor/golang.org/x/net/http2/headermap.go
@@ -7,15 +7,21 @@ package http2
 import (
 	"net/http"
 	"strings"
+	"sync"
 )
 
 var (
-	commonLowerHeader = map[string]string{} // Go-Canonical-Case -> lower-case
-	commonCanonHeader = map[string]string{} // lower-case -> Go-Canonical-Case
+	commonBuildOnce   sync.Once
+	commonLowerHeader map[string]string // Go-Canonical-Case -> lower-case
+	commonCanonHeader map[string]string // lower-case -> Go-Canonical-Case
 )
 
-func init() {
-	for _, v := range []string{
+func buildCommonHeaderMapsOnce() {
+	commonBuildOnce.Do(buildCommonHeaderMaps)
+}
+
+func buildCommonHeaderMaps() {
+	common := []string{
 		"accept",
 		"accept-charset",
 		"accept-encoding",
@@ -63,7 +69,10 @@ func init() {
 		"vary",
 		"via",
 		"www-authenticate",
-	} {
+	}
+	commonLowerHeader = make(map[string]string, len(common))
+	commonCanonHeader = make(map[string]string, len(common))
+	for _, v := range common {
 		chk := http.CanonicalHeaderKey(v)
 		commonLowerHeader[chk] = v
 		commonCanonHeader[v] = chk
@@ -71,6 +80,7 @@ func init() {
 }
 
 func lowerHeader(v string) string {
+	buildCommonHeaderMapsOnce()
 	if s, ok := commonLowerHeader[v]; ok {
 		return s
 	}
diff --git a/vendor/golang.org/x/net/http2/hpack/huffman.go b/vendor/golang.org/x/net/http2/hpack/huffman.go
index 8850e3946..b412a96c5 100644
--- a/vendor/golang.org/x/net/http2/hpack/huffman.go
+++ b/vendor/golang.org/x/net/http2/hpack/huffman.go
@@ -47,6 +47,7 @@ var ErrInvalidHuffman = errors.New("hpack: invalid Huffman-encoded data")
 // If maxLen is greater than 0, attempts to write more to buf than
 // maxLen bytes will return ErrStringLength.
 func huffmanDecode(buf *bytes.Buffer, maxLen int, v []byte) error {
+	rootHuffmanNode := getRootHuffmanNode()
 	n := rootHuffmanNode
 	// cur is the bit buffer that has not been fed into n.
 	// cbits is the number of low order bits in cur that are valid.
@@ -106,7 +107,7 @@ func huffmanDecode(buf *bytes.Buffer, maxLen int, v []byte) error {
 
 type node struct {
 	// children is non-nil for internal nodes
-	children []*node
+	children *[256]*node
 
 	// The following are only valid if children is nil:
 	codeLen uint8 // number of bits that led to the output of sym
@@ -114,22 +115,31 @@ type node struct {
 }
 
 func newInternalNode() *node {
-	return &node{children: make([]*node, 256)}
+	return &node{children: new([256]*node)}
 }
 
-var rootHuffmanNode = newInternalNode()
+var (
+	buildRootOnce       sync.Once
+	lazyRootHuffmanNode *node
+)
+
+func getRootHuffmanNode() *node {
+	buildRootOnce.Do(buildRootHuffmanNode)
+	return lazyRootHuffmanNode
+}
 
-func init() {
+func buildRootHuffmanNode() {
 	if len(huffmanCodes) != 256 {
 		panic("unexpected size")
 	}
+	lazyRootHuffmanNode = newInternalNode()
 	for i, code := range huffmanCodes {
 		addDecoderNode(byte(i), code, huffmanCodeLen[i])
 	}
 }
 
 func addDecoderNode(sym byte, code uint32, codeLen uint8) {
-	cur := rootHuffmanNode
+	cur := lazyRootHuffmanNode
 	for codeLen > 8 {
 		codeLen -= 8
 		i := uint8(code >> codeLen)
diff --git a/vendor/golang.org/x/net/http2/http2.go b/vendor/golang.org/x/net/http2/http2.go
index c82428254..bdaba1d46 100644
--- a/vendor/golang.org/x/net/http2/http2.go
+++ b/vendor/golang.org/x/net/http2/http2.go
@@ -201,19 +201,12 @@ func validWireHeaderFieldName(v string) bool {
 	return true
 }
 
-var httpCodeStringCommon = map[int]string{} // n -> strconv.Itoa(n)
-
-func init() {
-	for i := 100; i <= 999; i++ {
-		if v := http.StatusText(i); v != "" {
-			httpCodeStringCommon[i] = strconv.Itoa(i)
-		}
-	}
-}
-
 func httpCodeString(code int) string {
-	if s, ok := httpCodeStringCommon[code]; ok {
-		return s
+	switch code {
+	case 200:
+		return "200"
+	case 404:
+		return "404"
 	}
 	return strconv.Itoa(code)
 }
diff --git a/vendor/golang.org/x/net/http2/server.go b/vendor/golang.org/x/net/http2/server.go
index 22cb18e06..56859d1f8 100644
--- a/vendor/golang.org/x/net/http2/server.go
+++ b/vendor/golang.org/x/net/http2/server.go
@@ -663,6 +663,7 @@ func (sc *serverConn) condlogf(err error, format string, args ...interface{}) {
 
 func (sc *serverConn) canonicalHeader(v string) string {
 	sc.serveG.check()
+	buildCommonHeaderMapsOnce()
 	cv, ok := commonCanonHeader[v]
 	if ok {
 		return cv
@@ -2346,15 +2347,7 @@ func (rws *responseWriterState) writeChunk(p []byte) (n int, err error) {
 		}
 		_, hasContentType := rws.snapHeader["Content-Type"]
 		if !hasContentType && bodyAllowedForStatus(rws.status) && len(p) > 0 {
-			if cto := rws.snapHeader.Get("X-Content-Type-Options"); strings.EqualFold("nosniff", cto) {
-				// nosniff is an explicit directive not to guess a content-type.
-				// Content-sniffing is no less susceptible to polyglot attacks via
-				// hosted content when done on the server.
-				ctype = "application/octet-stream"
-				rws.conn.logf("http2: WriteHeader called with X-Content-Type-Options:nosniff but no Content-Type")
-			} else {
-				ctype = http.DetectContentType(p)
-			}
+			ctype = http.DetectContentType(p)
 		}
 		var date string
 		if _, ok := rws.snapHeader["Date"]; !ok {
diff --git a/vendor/golang.org/x/net/ipv4/doc.go b/vendor/golang.org/x/net/ipv4/doc.go
index d12455548..3efa29037 100644
--- a/vendor/golang.org/x/net/ipv4/doc.go
+++ b/vendor/golang.org/x/net/ipv4/doc.go
@@ -55,7 +55,7 @@
 // Multicasting
 //
 // The options for multicasting are available for net.UDPConn and
-// net.IPconn which are created as network connections that use the
+// net.IPConn which are created as network connections that use the
 // IPv4 transport. A few network facilities must be prepared before
 // you begin multicasting, at a minimum joining network interfaces and
 // multicast groups.
diff --git a/vendor/golang.org/x/net/ipv4/header.go b/vendor/golang.org/x/net/ipv4/header.go
index 358afe2f1..a8c8f7a6c 100644
--- a/vendor/golang.org/x/net/ipv4/header.go
+++ b/vendor/golang.org/x/net/ipv4/header.go
@@ -51,6 +51,10 @@ func (h *Header) String() string {
 }
 
 // Marshal returns the binary encoding of h.
+//
+// The returned slice is in the format used by a raw IP socket on the
+// local system.
+// This may differ from the wire format, depending on the system.
 func (h *Header) Marshal() ([]byte, error) {
 	if h == nil {
 		return nil, errInvalidConn
@@ -98,6 +102,10 @@ func (h *Header) Marshal() ([]byte, error) {
 }
 
 // Parse parses b as an IPv4 header and stores the result in h.
+//
+// The provided b must be in the format used by a raw IP socket on the
+// local system.
+// This may differ from the wire format, depending on the system.
 func (h *Header) Parse(b []byte) error {
 	if h == nil || len(b) < HeaderLen {
 		return errHeaderTooShort
@@ -149,6 +157,10 @@ func (h *Header) Parse(b []byte) error {
 }
 
 // ParseHeader parses b as an IPv4 header.
+//
+// The provided b must be in the format used by a raw IP socket on the
+// local system.
+// This may differ from the wire format, depending on the system.
 func ParseHeader(b []byte) (*Header, error) {
 	h := new(Header)
 	if err := h.Parse(b); err != nil {
diff --git a/vendor/golang.org/x/net/ipv6/doc.go b/vendor/golang.org/x/net/ipv6/doc.go
index cb4000623..e0be9d50d 100644
--- a/vendor/golang.org/x/net/ipv6/doc.go
+++ b/vendor/golang.org/x/net/ipv6/doc.go
@@ -56,7 +56,7 @@
 // Multicasting
 //
 // The options for multicasting are available for net.UDPConn and
-// net.IPconn which are created as network connections that use the
+// net.IPConn which are created as network connections that use the
 // IPv6 transport. A few network facilities must be prepared before
 // you begin multicasting, at a minimum joining network interfaces and
 // multicast groups.
diff --git a/vendor/golang.org/x/net/trace/trace.go b/vendor/golang.org/x/net/trace/trace.go
index a46ee0eaa..f00d869ff 100644
--- a/vendor/golang.org/x/net/trace/trace.go
+++ b/vendor/golang.org/x/net/trace/trace.go
@@ -70,6 +70,7 @@ import (
 	"log"
 	"net"
 	"net/http"
+	"net/url"
 	"runtime"
 	"sort"
 	"strconv"
@@ -110,6 +111,13 @@ var AuthRequest = func(req *http.Request) (any, sensitive bool) {
 }
 
 func init() {
+	_, pat := http.DefaultServeMux.Handler(&http.Request{URL: &url.URL{Path: "/debug/requests"}})
+	if pat != "" {
+		panic("/debug/requests is already registered. You may have two independent copies of " +
+			"golang.org/x/net/trace in your binary, trying to maintain separate state. This may " +
+			"involve a vendored copy of golang.org/x/net/trace.")
+	}
+
 	// TODO(jbd): Serve Traces from /debug/traces in the future?
 	// There is no requirement for a request to be present to have traces.
 	http.HandleFunc("/debug/requests", Traces)