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authorHuabingZhao <zhao.huabing@zte.com.cn>2017-09-04 15:00:54 +0800
committerHuabingZhao <zhao.huabing@zte.com.cn>2017-09-04 15:06:21 +0800
commit43dac0bc4302fed79eaeb661723ca584a9c0496a (patch)
treea78f60300d73f0a69ed12e946d3fe4580455d8ba /kube2msb/src/vendor/golang.org/x/net/http2/hpack
parenta7837a0ac51704003c6aacba2dacb8e64f681622 (diff)
restructure the source directory
Issue-ID: OOM-61 Change-Id: Ib6f633d517ad197bfdbca59b374cdad2f1ed897e Signed-off-by: HuabingZhao <zhao.huabing@zte.com.cn>
Diffstat (limited to 'kube2msb/src/vendor/golang.org/x/net/http2/hpack')
-rw-r--r--kube2msb/src/vendor/golang.org/x/net/http2/hpack/encode.go251
-rw-r--r--kube2msb/src/vendor/golang.org/x/net/http2/hpack/hpack.go533
-rw-r--r--kube2msb/src/vendor/golang.org/x/net/http2/hpack/huffman.go190
-rw-r--r--kube2msb/src/vendor/golang.org/x/net/http2/hpack/tables.go352
4 files changed, 0 insertions, 1326 deletions
diff --git a/kube2msb/src/vendor/golang.org/x/net/http2/hpack/encode.go b/kube2msb/src/vendor/golang.org/x/net/http2/hpack/encode.go
deleted file mode 100644
index 80d621c..0000000
--- a/kube2msb/src/vendor/golang.org/x/net/http2/hpack/encode.go
+++ /dev/null
@@ -1,251 +0,0 @@
-// Copyright 2014 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-package hpack
-
-import (
- "io"
-)
-
-const (
- uint32Max = ^uint32(0)
- initialHeaderTableSize = 4096
-)
-
-type Encoder struct {
- dynTab dynamicTable
- // minSize is the minimum table size set by
- // SetMaxDynamicTableSize after the previous Header Table Size
- // Update.
- minSize uint32
- // maxSizeLimit is the maximum table size this encoder
- // supports. This will protect the encoder from too large
- // size.
- maxSizeLimit uint32
- // tableSizeUpdate indicates whether "Header Table Size
- // Update" is required.
- tableSizeUpdate bool
- w io.Writer
- buf []byte
-}
-
-// NewEncoder returns a new Encoder which performs HPACK encoding. An
-// encoded data is written to w.
-func NewEncoder(w io.Writer) *Encoder {
- e := &Encoder{
- minSize: uint32Max,
- maxSizeLimit: initialHeaderTableSize,
- tableSizeUpdate: false,
- w: w,
- }
- e.dynTab.setMaxSize(initialHeaderTableSize)
- return e
-}
-
-// WriteField encodes f into a single Write to e's underlying Writer.
-// This function may also produce bytes for "Header Table Size Update"
-// if necessary. If produced, it is done before encoding f.
-func (e *Encoder) WriteField(f HeaderField) error {
- e.buf = e.buf[:0]
-
- if e.tableSizeUpdate {
- e.tableSizeUpdate = false
- if e.minSize < e.dynTab.maxSize {
- e.buf = appendTableSize(e.buf, e.minSize)
- }
- e.minSize = uint32Max
- e.buf = appendTableSize(e.buf, e.dynTab.maxSize)
- }
-
- idx, nameValueMatch := e.searchTable(f)
- if nameValueMatch {
- e.buf = appendIndexed(e.buf, idx)
- } else {
- indexing := e.shouldIndex(f)
- if indexing {
- e.dynTab.add(f)
- }
-
- if idx == 0 {
- e.buf = appendNewName(e.buf, f, indexing)
- } else {
- e.buf = appendIndexedName(e.buf, f, idx, indexing)
- }
- }
- n, err := e.w.Write(e.buf)
- if err == nil && n != len(e.buf) {
- err = io.ErrShortWrite
- }
- return err
-}
-
-// searchTable searches f in both stable and dynamic header tables.
-// The static header table is searched first. Only when there is no
-// exact match for both name and value, the dynamic header table is
-// then searched. If there is no match, i is 0. If both name and value
-// match, i is the matched index and nameValueMatch becomes true. If
-// only name matches, i points to that index and nameValueMatch
-// becomes false.
-func (e *Encoder) searchTable(f HeaderField) (i uint64, nameValueMatch bool) {
- for idx, hf := range staticTable {
- if !constantTimeStringCompare(hf.Name, f.Name) {
- continue
- }
- if i == 0 {
- i = uint64(idx + 1)
- }
- if f.Sensitive {
- continue
- }
- if !constantTimeStringCompare(hf.Value, f.Value) {
- continue
- }
- i = uint64(idx + 1)
- nameValueMatch = true
- return
- }
-
- j, nameValueMatch := e.dynTab.search(f)
- if nameValueMatch || (i == 0 && j != 0) {
- i = j + uint64(len(staticTable))
- }
- return
-}
-
-// SetMaxDynamicTableSize changes the dynamic header table size to v.
-// The actual size is bounded by the value passed to
-// SetMaxDynamicTableSizeLimit.
-func (e *Encoder) SetMaxDynamicTableSize(v uint32) {
- if v > e.maxSizeLimit {
- v = e.maxSizeLimit
- }
- if v < e.minSize {
- e.minSize = v
- }
- e.tableSizeUpdate = true
- e.dynTab.setMaxSize(v)
-}
-
-// SetMaxDynamicTableSizeLimit changes the maximum value that can be
-// specified in SetMaxDynamicTableSize to v. By default, it is set to
-// 4096, which is the same size of the default dynamic header table
-// size described in HPACK specification. If the current maximum
-// dynamic header table size is strictly greater than v, "Header Table
-// Size Update" will be done in the next WriteField call and the
-// maximum dynamic header table size is truncated to v.
-func (e *Encoder) SetMaxDynamicTableSizeLimit(v uint32) {
- e.maxSizeLimit = v
- if e.dynTab.maxSize > v {
- e.tableSizeUpdate = true
- e.dynTab.setMaxSize(v)
- }
-}
-
-// shouldIndex reports whether f should be indexed.
-func (e *Encoder) shouldIndex(f HeaderField) bool {
- return !f.Sensitive && f.size() <= e.dynTab.maxSize
-}
-
-// appendIndexed appends index i, as encoded in "Indexed Header Field"
-// representation, to dst and returns the extended buffer.
-func appendIndexed(dst []byte, i uint64) []byte {
- first := len(dst)
- dst = appendVarInt(dst, 7, i)
- dst[first] |= 0x80
- return dst
-}
-
-// appendNewName appends f, as encoded in one of "Literal Header field
-// - New Name" representation variants, to dst and returns the
-// extended buffer.
-//
-// If f.Sensitive is true, "Never Indexed" representation is used. If
-// f.Sensitive is false and indexing is true, "Inremental Indexing"
-// representation is used.
-func appendNewName(dst []byte, f HeaderField, indexing bool) []byte {
- dst = append(dst, encodeTypeByte(indexing, f.Sensitive))
- dst = appendHpackString(dst, f.Name)
- return appendHpackString(dst, f.Value)
-}
-
-// appendIndexedName appends f and index i referring indexed name
-// entry, as encoded in one of "Literal Header field - Indexed Name"
-// representation variants, to dst and returns the extended buffer.
-//
-// If f.Sensitive is true, "Never Indexed" representation is used. If
-// f.Sensitive is false and indexing is true, "Incremental Indexing"
-// representation is used.
-func appendIndexedName(dst []byte, f HeaderField, i uint64, indexing bool) []byte {
- first := len(dst)
- var n byte
- if indexing {
- n = 6
- } else {
- n = 4
- }
- dst = appendVarInt(dst, n, i)
- dst[first] |= encodeTypeByte(indexing, f.Sensitive)
- return appendHpackString(dst, f.Value)
-}
-
-// appendTableSize appends v, as encoded in "Header Table Size Update"
-// representation, to dst and returns the extended buffer.
-func appendTableSize(dst []byte, v uint32) []byte {
- first := len(dst)
- dst = appendVarInt(dst, 5, uint64(v))
- dst[first] |= 0x20
- return dst
-}
-
-// appendVarInt appends i, as encoded in variable integer form using n
-// bit prefix, to dst and returns the extended buffer.
-//
-// See
-// http://http2.github.io/http2-spec/compression.html#integer.representation
-func appendVarInt(dst []byte, n byte, i uint64) []byte {
- k := uint64((1 << n) - 1)
- if i < k {
- return append(dst, byte(i))
- }
- dst = append(dst, byte(k))
- i -= k
- for ; i >= 128; i >>= 7 {
- dst = append(dst, byte(0x80|(i&0x7f)))
- }
- return append(dst, byte(i))
-}
-
-// appendHpackString appends s, as encoded in "String Literal"
-// representation, to dst and returns the the extended buffer.
-//
-// s will be encoded in Huffman codes only when it produces strictly
-// shorter byte string.
-func appendHpackString(dst []byte, s string) []byte {
- huffmanLength := HuffmanEncodeLength(s)
- if huffmanLength < uint64(len(s)) {
- first := len(dst)
- dst = appendVarInt(dst, 7, huffmanLength)
- dst = AppendHuffmanString(dst, s)
- dst[first] |= 0x80
- } else {
- dst = appendVarInt(dst, 7, uint64(len(s)))
- dst = append(dst, s...)
- }
- return dst
-}
-
-// encodeTypeByte returns type byte. If sensitive is true, type byte
-// for "Never Indexed" representation is returned. If sensitive is
-// false and indexing is true, type byte for "Incremental Indexing"
-// representation is returned. Otherwise, type byte for "Without
-// Indexing" is returned.
-func encodeTypeByte(indexing, sensitive bool) byte {
- if sensitive {
- return 0x10
- }
- if indexing {
- return 0x40
- }
- return 0
-}
diff --git a/kube2msb/src/vendor/golang.org/x/net/http2/hpack/hpack.go b/kube2msb/src/vendor/golang.org/x/net/http2/hpack/hpack.go
deleted file mode 100644
index 2ea4949..0000000
--- a/kube2msb/src/vendor/golang.org/x/net/http2/hpack/hpack.go
+++ /dev/null
@@ -1,533 +0,0 @@
-// Copyright 2014 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-// Package hpack implements HPACK, a compression format for
-// efficiently representing HTTP header fields in the context of HTTP/2.
-//
-// See http://tools.ietf.org/html/draft-ietf-httpbis-header-compression-09
-package hpack
-
-import (
- "bytes"
- "errors"
- "fmt"
-)
-
-// A DecodingError is something the spec defines as a decoding error.
-type DecodingError struct {
- Err error
-}
-
-func (de DecodingError) Error() string {
- return fmt.Sprintf("decoding error: %v", de.Err)
-}
-
-// An InvalidIndexError is returned when an encoder references a table
-// entry before the static table or after the end of the dynamic table.
-type InvalidIndexError int
-
-func (e InvalidIndexError) Error() string {
- return fmt.Sprintf("invalid indexed representation index %d", int(e))
-}
-
-// A HeaderField is a name-value pair. Both the name and value are
-// treated as opaque sequences of octets.
-type HeaderField struct {
- Name, Value string
-
- // Sensitive means that this header field should never be
- // indexed.
- Sensitive bool
-}
-
-func (hf HeaderField) String() string {
- var suffix string
- if hf.Sensitive {
- suffix = " (sensitive)"
- }
- return fmt.Sprintf("header field %q = %q%s", hf.Name, hf.Value, suffix)
-}
-
-func (hf *HeaderField) size() uint32 {
- // http://http2.github.io/http2-spec/compression.html#rfc.section.4.1
- // "The size of the dynamic table is the sum of the size of
- // its entries. The size of an entry is the sum of its name's
- // length in octets (as defined in Section 5.2), its value's
- // length in octets (see Section 5.2), plus 32. The size of
- // an entry is calculated using the length of the name and
- // value without any Huffman encoding applied."
-
- // This can overflow if somebody makes a large HeaderField
- // Name and/or Value by hand, but we don't care, because that
- // won't happen on the wire because the encoding doesn't allow
- // it.
- return uint32(len(hf.Name) + len(hf.Value) + 32)
-}
-
-// A Decoder is the decoding context for incremental processing of
-// header blocks.
-type Decoder struct {
- dynTab dynamicTable
- emit func(f HeaderField)
-
- emitEnabled bool // whether calls to emit are enabled
- maxStrLen int // 0 means unlimited
-
- // buf is the unparsed buffer. It's only written to
- // saveBuf if it was truncated in the middle of a header
- // block. Because it's usually not owned, we can only
- // process it under Write.
- buf []byte // not owned; only valid during Write
-
- // saveBuf is previous data passed to Write which we weren't able
- // to fully parse before. Unlike buf, we own this data.
- saveBuf bytes.Buffer
-}
-
-// NewDecoder returns a new decoder with the provided maximum dynamic
-// table size. The emitFunc will be called for each valid field
-// parsed, in the same goroutine as calls to Write, before Write returns.
-func NewDecoder(maxDynamicTableSize uint32, emitFunc func(f HeaderField)) *Decoder {
- d := &Decoder{
- emit: emitFunc,
- emitEnabled: true,
- }
- d.dynTab.allowedMaxSize = maxDynamicTableSize
- d.dynTab.setMaxSize(maxDynamicTableSize)
- return d
-}
-
-// ErrStringLength is returned by Decoder.Write when the max string length
-// (as configured by Decoder.SetMaxStringLength) would be violated.
-var ErrStringLength = errors.New("hpack: string too long")
-
-// SetMaxStringLength sets the maximum size of a HeaderField name or
-// value string. If a string exceeds this length (even after any
-// decompression), Write will return ErrStringLength.
-// A value of 0 means unlimited and is the default from NewDecoder.
-func (d *Decoder) SetMaxStringLength(n int) {
- d.maxStrLen = n
-}
-
-// SetEmitFunc changes the callback used when new header fields
-// are decoded.
-// It must be non-nil. It does not affect EmitEnabled.
-func (d *Decoder) SetEmitFunc(emitFunc func(f HeaderField)) {
- d.emit = emitFunc
-}
-
-// SetEmitEnabled controls whether the emitFunc provided to NewDecoder
-// should be called. The default is true.
-//
-// This facility exists to let servers enforce MAX_HEADER_LIST_SIZE
-// while still decoding and keeping in-sync with decoder state, but
-// without doing unnecessary decompression or generating unnecessary
-// garbage for header fields past the limit.
-func (d *Decoder) SetEmitEnabled(v bool) { d.emitEnabled = v }
-
-// EmitEnabled reports whether calls to the emitFunc provided to NewDecoder
-// are currently enabled. The default is true.
-func (d *Decoder) EmitEnabled() bool { return d.emitEnabled }
-
-// TODO: add method *Decoder.Reset(maxSize, emitFunc) to let callers re-use Decoders and their
-// underlying buffers for garbage reasons.
-
-func (d *Decoder) SetMaxDynamicTableSize(v uint32) {
- d.dynTab.setMaxSize(v)
-}
-
-// SetAllowedMaxDynamicTableSize sets the upper bound that the encoded
-// stream (via dynamic table size updates) may set the maximum size
-// to.
-func (d *Decoder) SetAllowedMaxDynamicTableSize(v uint32) {
- d.dynTab.allowedMaxSize = v
-}
-
-type dynamicTable struct {
- // ents is the FIFO described at
- // http://http2.github.io/http2-spec/compression.html#rfc.section.2.3.2
- // The newest (low index) is append at the end, and items are
- // evicted from the front.
- ents []HeaderField
- size uint32
- maxSize uint32 // current maxSize
- allowedMaxSize uint32 // maxSize may go up to this, inclusive
-}
-
-func (dt *dynamicTable) setMaxSize(v uint32) {
- dt.maxSize = v
- dt.evict()
-}
-
-// TODO: change dynamicTable to be a struct with a slice and a size int field,
-// per http://http2.github.io/http2-spec/compression.html#rfc.section.4.1:
-//
-//
-// Then make add increment the size. maybe the max size should move from Decoder to
-// dynamicTable and add should return an ok bool if there was enough space.
-//
-// Later we'll need a remove operation on dynamicTable.
-
-func (dt *dynamicTable) add(f HeaderField) {
- dt.ents = append(dt.ents, f)
- dt.size += f.size()
- dt.evict()
-}
-
-// If we're too big, evict old stuff (front of the slice)
-func (dt *dynamicTable) evict() {
- base := dt.ents // keep base pointer of slice
- for dt.size > dt.maxSize {
- dt.size -= dt.ents[0].size()
- dt.ents = dt.ents[1:]
- }
-
- // Shift slice contents down if we evicted things.
- if len(dt.ents) != len(base) {
- copy(base, dt.ents)
- dt.ents = base[:len(dt.ents)]
- }
-}
-
-// constantTimeStringCompare compares string a and b in a constant
-// time manner.
-func constantTimeStringCompare(a, b string) bool {
- if len(a) != len(b) {
- return false
- }
-
- c := byte(0)
-
- for i := 0; i < len(a); i++ {
- c |= a[i] ^ b[i]
- }
-
- return c == 0
-}
-
-// Search searches f in the table. The return value i is 0 if there is
-// no name match. If there is name match or name/value match, i is the
-// index of that entry (1-based). If both name and value match,
-// nameValueMatch becomes true.
-func (dt *dynamicTable) search(f HeaderField) (i uint64, nameValueMatch bool) {
- l := len(dt.ents)
- for j := l - 1; j >= 0; j-- {
- ent := dt.ents[j]
- if !constantTimeStringCompare(ent.Name, f.Name) {
- continue
- }
- if i == 0 {
- i = uint64(l - j)
- }
- if f.Sensitive {
- continue
- }
- if !constantTimeStringCompare(ent.Value, f.Value) {
- continue
- }
- i = uint64(l - j)
- nameValueMatch = true
- return
- }
- return
-}
-
-func (d *Decoder) maxTableIndex() int {
- return len(d.dynTab.ents) + len(staticTable)
-}
-
-func (d *Decoder) at(i uint64) (hf HeaderField, ok bool) {
- if i < 1 {
- return
- }
- if i > uint64(d.maxTableIndex()) {
- return
- }
- if i <= uint64(len(staticTable)) {
- return staticTable[i-1], true
- }
- dents := d.dynTab.ents
- return dents[len(dents)-(int(i)-len(staticTable))], true
-}
-
-// Decode decodes an entire block.
-//
-// TODO: remove this method and make it incremental later? This is
-// easier for debugging now.
-func (d *Decoder) DecodeFull(p []byte) ([]HeaderField, error) {
- var hf []HeaderField
- saveFunc := d.emit
- defer func() { d.emit = saveFunc }()
- d.emit = func(f HeaderField) { hf = append(hf, f) }
- if _, err := d.Write(p); err != nil {
- return nil, err
- }
- if err := d.Close(); err != nil {
- return nil, err
- }
- return hf, nil
-}
-
-func (d *Decoder) Close() error {
- if d.saveBuf.Len() > 0 {
- d.saveBuf.Reset()
- return DecodingError{errors.New("truncated headers")}
- }
- return nil
-}
-
-func (d *Decoder) Write(p []byte) (n int, err error) {
- if len(p) == 0 {
- // Prevent state machine CPU attacks (making us redo
- // work up to the point of finding out we don't have
- // enough data)
- return
- }
- // Only copy the data if we have to. Optimistically assume
- // that p will contain a complete header block.
- if d.saveBuf.Len() == 0 {
- d.buf = p
- } else {
- d.saveBuf.Write(p)
- d.buf = d.saveBuf.Bytes()
- d.saveBuf.Reset()
- }
-
- for len(d.buf) > 0 {
- err = d.parseHeaderFieldRepr()
- if err == errNeedMore {
- // Extra paranoia, making sure saveBuf won't
- // get too large. All the varint and string
- // reading code earlier should already catch
- // overlong things and return ErrStringLength,
- // but keep this as a last resort.
- const varIntOverhead = 8 // conservative
- if d.maxStrLen != 0 && int64(len(d.buf)) > 2*(int64(d.maxStrLen)+varIntOverhead) {
- return 0, ErrStringLength
- }
- d.saveBuf.Write(d.buf)
- return len(p), nil
- }
- if err != nil {
- break
- }
- }
- return len(p), err
-}
-
-// errNeedMore is an internal sentinel error value that means the
-// buffer is truncated and we need to read more data before we can
-// continue parsing.
-var errNeedMore = errors.New("need more data")
-
-type indexType int
-
-const (
- indexedTrue indexType = iota
- indexedFalse
- indexedNever
-)
-
-func (v indexType) indexed() bool { return v == indexedTrue }
-func (v indexType) sensitive() bool { return v == indexedNever }
-
-// returns errNeedMore if there isn't enough data available.
-// any other error is fatal.
-// consumes d.buf iff it returns nil.
-// precondition: must be called with len(d.buf) > 0
-func (d *Decoder) parseHeaderFieldRepr() error {
- b := d.buf[0]
- switch {
- case b&128 != 0:
- // Indexed representation.
- // High bit set?
- // http://http2.github.io/http2-spec/compression.html#rfc.section.6.1
- return d.parseFieldIndexed()
- case b&192 == 64:
- // 6.2.1 Literal Header Field with Incremental Indexing
- // 0b10xxxxxx: top two bits are 10
- // http://http2.github.io/http2-spec/compression.html#rfc.section.6.2.1
- return d.parseFieldLiteral(6, indexedTrue)
- case b&240 == 0:
- // 6.2.2 Literal Header Field without Indexing
- // 0b0000xxxx: top four bits are 0000
- // http://http2.github.io/http2-spec/compression.html#rfc.section.6.2.2
- return d.parseFieldLiteral(4, indexedFalse)
- case b&240 == 16:
- // 6.2.3 Literal Header Field never Indexed
- // 0b0001xxxx: top four bits are 0001
- // http://http2.github.io/http2-spec/compression.html#rfc.section.6.2.3
- return d.parseFieldLiteral(4, indexedNever)
- case b&224 == 32:
- // 6.3 Dynamic Table Size Update
- // Top three bits are '001'.
- // http://http2.github.io/http2-spec/compression.html#rfc.section.6.3
- return d.parseDynamicTableSizeUpdate()
- }
-
- return DecodingError{errors.New("invalid encoding")}
-}
-
-// (same invariants and behavior as parseHeaderFieldRepr)
-func (d *Decoder) parseFieldIndexed() error {
- buf := d.buf
- idx, buf, err := readVarInt(7, buf)
- if err != nil {
- return err
- }
- hf, ok := d.at(idx)
- if !ok {
- return DecodingError{InvalidIndexError(idx)}
- }
- d.buf = buf
- return d.callEmit(HeaderField{Name: hf.Name, Value: hf.Value})
-}
-
-// (same invariants and behavior as parseHeaderFieldRepr)
-func (d *Decoder) parseFieldLiteral(n uint8, it indexType) error {
- buf := d.buf
- nameIdx, buf, err := readVarInt(n, buf)
- if err != nil {
- return err
- }
-
- var hf HeaderField
- wantStr := d.emitEnabled || it.indexed()
- if nameIdx > 0 {
- ihf, ok := d.at(nameIdx)
- if !ok {
- return DecodingError{InvalidIndexError(nameIdx)}
- }
- hf.Name = ihf.Name
- } else {
- hf.Name, buf, err = d.readString(buf, wantStr)
- if err != nil {
- return err
- }
- }
- hf.Value, buf, err = d.readString(buf, wantStr)
- if err != nil {
- return err
- }
- d.buf = buf
- if it.indexed() {
- d.dynTab.add(hf)
- }
- hf.Sensitive = it.sensitive()
- return d.callEmit(hf)
-}
-
-func (d *Decoder) callEmit(hf HeaderField) error {
- if d.maxStrLen != 0 {
- if len(hf.Name) > d.maxStrLen || len(hf.Value) > d.maxStrLen {
- return ErrStringLength
- }
- }
- if d.emitEnabled {
- d.emit(hf)
- }
- return nil
-}
-
-// (same invariants and behavior as parseHeaderFieldRepr)
-func (d *Decoder) parseDynamicTableSizeUpdate() error {
- buf := d.buf
- size, buf, err := readVarInt(5, buf)
- if err != nil {
- return err
- }
- if size > uint64(d.dynTab.allowedMaxSize) {
- return DecodingError{errors.New("dynamic table size update too large")}
- }
- d.dynTab.setMaxSize(uint32(size))
- d.buf = buf
- return nil
-}
-
-var errVarintOverflow = DecodingError{errors.New("varint integer overflow")}
-
-// readVarInt reads an unsigned variable length integer off the
-// beginning of p. n is the parameter as described in
-// http://http2.github.io/http2-spec/compression.html#rfc.section.5.1.
-//
-// n must always be between 1 and 8.
-//
-// The returned remain buffer is either a smaller suffix of p, or err != nil.
-// The error is errNeedMore if p doesn't contain a complete integer.
-func readVarInt(n byte, p []byte) (i uint64, remain []byte, err error) {
- if n < 1 || n > 8 {
- panic("bad n")
- }
- if len(p) == 0 {
- return 0, p, errNeedMore
- }
- i = uint64(p[0])
- if n < 8 {
- i &= (1 << uint64(n)) - 1
- }
- if i < (1<<uint64(n))-1 {
- return i, p[1:], nil
- }
-
- origP := p
- p = p[1:]
- var m uint64
- for len(p) > 0 {
- b := p[0]
- p = p[1:]
- i += uint64(b&127) << m
- if b&128 == 0 {
- return i, p, nil
- }
- m += 7
- if m >= 63 { // TODO: proper overflow check. making this up.
- return 0, origP, errVarintOverflow
- }
- }
- return 0, origP, errNeedMore
-}
-
-// readString decodes an hpack string from p.
-//
-// wantStr is whether s will be used. If false, decompression and
-// []byte->string garbage are skipped if s will be ignored
-// anyway. This does mean that huffman decoding errors for non-indexed
-// strings past the MAX_HEADER_LIST_SIZE are ignored, but the server
-// is returning an error anyway, and because they're not indexed, the error
-// won't affect the decoding state.
-func (d *Decoder) readString(p []byte, wantStr bool) (s string, remain []byte, err error) {
- if len(p) == 0 {
- return "", p, errNeedMore
- }
- isHuff := p[0]&128 != 0
- strLen, p, err := readVarInt(7, p)
- if err != nil {
- return "", p, err
- }
- if d.maxStrLen != 0 && strLen > uint64(d.maxStrLen) {
- return "", nil, ErrStringLength
- }
- if uint64(len(p)) < strLen {
- return "", p, errNeedMore
- }
- if !isHuff {
- if wantStr {
- s = string(p[:strLen])
- }
- return s, p[strLen:], nil
- }
-
- if wantStr {
- buf := bufPool.Get().(*bytes.Buffer)
- buf.Reset() // don't trust others
- defer bufPool.Put(buf)
- if err := huffmanDecode(buf, d.maxStrLen, p[:strLen]); err != nil {
- buf.Reset()
- return "", nil, err
- }
- s = buf.String()
- buf.Reset() // be nice to GC
- }
- return s, p[strLen:], nil
-}
diff --git a/kube2msb/src/vendor/golang.org/x/net/http2/hpack/huffman.go b/kube2msb/src/vendor/golang.org/x/net/http2/hpack/huffman.go
deleted file mode 100644
index eb4b1f0..0000000
--- a/kube2msb/src/vendor/golang.org/x/net/http2/hpack/huffman.go
+++ /dev/null
@@ -1,190 +0,0 @@
-// Copyright 2014 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-package hpack
-
-import (
- "bytes"
- "errors"
- "io"
- "sync"
-)
-
-var bufPool = sync.Pool{
- New: func() interface{} { return new(bytes.Buffer) },
-}
-
-// HuffmanDecode decodes the string in v and writes the expanded
-// result to w, returning the number of bytes written to w and the
-// Write call's return value. At most one Write call is made.
-func HuffmanDecode(w io.Writer, v []byte) (int, error) {
- buf := bufPool.Get().(*bytes.Buffer)
- buf.Reset()
- defer bufPool.Put(buf)
- if err := huffmanDecode(buf, 0, v); err != nil {
- return 0, err
- }
- return w.Write(buf.Bytes())
-}
-
-// HuffmanDecodeToString decodes the string in v.
-func HuffmanDecodeToString(v []byte) (string, error) {
- buf := bufPool.Get().(*bytes.Buffer)
- buf.Reset()
- defer bufPool.Put(buf)
- if err := huffmanDecode(buf, 0, v); err != nil {
- return "", err
- }
- return buf.String(), nil
-}
-
-// ErrInvalidHuffman is returned for errors found decoding
-// Huffman-encoded strings.
-var ErrInvalidHuffman = errors.New("hpack: invalid Huffman-encoded data")
-
-// huffmanDecode decodes v to buf.
-// 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 {
- n := rootHuffmanNode
- cur, nbits := uint(0), uint8(0)
- for _, b := range v {
- cur = cur<<8 | uint(b)
- nbits += 8
- for nbits >= 8 {
- idx := byte(cur >> (nbits - 8))
- n = n.children[idx]
- if n == nil {
- return ErrInvalidHuffman
- }
- if n.children == nil {
- if maxLen != 0 && buf.Len() == maxLen {
- return ErrStringLength
- }
- buf.WriteByte(n.sym)
- nbits -= n.codeLen
- n = rootHuffmanNode
- } else {
- nbits -= 8
- }
- }
- }
- for nbits > 0 {
- n = n.children[byte(cur<<(8-nbits))]
- if n.children != nil || n.codeLen > nbits {
- break
- }
- buf.WriteByte(n.sym)
- nbits -= n.codeLen
- n = rootHuffmanNode
- }
- return nil
-}
-
-type node struct {
- // children is non-nil for internal nodes
- children []*node
-
- // The following are only valid if children is nil:
- codeLen uint8 // number of bits that led to the output of sym
- sym byte // output symbol
-}
-
-func newInternalNode() *node {
- return &node{children: make([]*node, 256)}
-}
-
-var rootHuffmanNode = newInternalNode()
-
-func init() {
- if len(huffmanCodes) != 256 {
- panic("unexpected size")
- }
- for i, code := range huffmanCodes {
- addDecoderNode(byte(i), code, huffmanCodeLen[i])
- }
-}
-
-func addDecoderNode(sym byte, code uint32, codeLen uint8) {
- cur := rootHuffmanNode
- for codeLen > 8 {
- codeLen -= 8
- i := uint8(code >> codeLen)
- if cur.children[i] == nil {
- cur.children[i] = newInternalNode()
- }
- cur = cur.children[i]
- }
- shift := 8 - codeLen
- start, end := int(uint8(code<<shift)), int(1<<shift)
- for i := start; i < start+end; i++ {
- cur.children[i] = &node{sym: sym, codeLen: codeLen}
- }
-}
-
-// AppendHuffmanString appends s, as encoded in Huffman codes, to dst
-// and returns the extended buffer.
-func AppendHuffmanString(dst []byte, s string) []byte {
- rembits := uint8(8)
-
- for i := 0; i < len(s); i++ {
- if rembits == 8 {
- dst = append(dst, 0)
- }
- dst, rembits = appendByteToHuffmanCode(dst, rembits, s[i])
- }
-
- if rembits < 8 {
- // special EOS symbol
- code := uint32(0x3fffffff)
- nbits := uint8(30)
-
- t := uint8(code >> (nbits - rembits))
- dst[len(dst)-1] |= t
- }
-
- return dst
-}
-
-// HuffmanEncodeLength returns the number of bytes required to encode
-// s in Huffman codes. The result is round up to byte boundary.
-func HuffmanEncodeLength(s string) uint64 {
- n := uint64(0)
- for i := 0; i < len(s); i++ {
- n += uint64(huffmanCodeLen[s[i]])
- }
- return (n + 7) / 8
-}
-
-// appendByteToHuffmanCode appends Huffman code for c to dst and
-// returns the extended buffer and the remaining bits in the last
-// element. The appending is not byte aligned and the remaining bits
-// in the last element of dst is given in rembits.
-func appendByteToHuffmanCode(dst []byte, rembits uint8, c byte) ([]byte, uint8) {
- code := huffmanCodes[c]
- nbits := huffmanCodeLen[c]
-
- for {
- if rembits > nbits {
- t := uint8(code << (rembits - nbits))
- dst[len(dst)-1] |= t
- rembits -= nbits
- break
- }
-
- t := uint8(code >> (nbits - rembits))
- dst[len(dst)-1] |= t
-
- nbits -= rembits
- rembits = 8
-
- if nbits == 0 {
- break
- }
-
- dst = append(dst, 0)
- }
-
- return dst, rembits
-}
diff --git a/kube2msb/src/vendor/golang.org/x/net/http2/hpack/tables.go b/kube2msb/src/vendor/golang.org/x/net/http2/hpack/tables.go
deleted file mode 100644
index b9283a0..0000000
--- a/kube2msb/src/vendor/golang.org/x/net/http2/hpack/tables.go
+++ /dev/null
@@ -1,352 +0,0 @@
-// Copyright 2014 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-package hpack
-
-func pair(name, value string) HeaderField {
- return HeaderField{Name: name, Value: value}
-}
-
-// http://tools.ietf.org/html/draft-ietf-httpbis-header-compression-07#appendix-B
-var staticTable = [...]HeaderField{
- pair(":authority", ""), // index 1 (1-based)
- pair(":method", "GET"),
- pair(":method", "POST"),
- pair(":path", "/"),
- pair(":path", "/index.html"),
- pair(":scheme", "http"),
- pair(":scheme", "https"),
- pair(":status", "200"),
- pair(":status", "204"),
- pair(":status", "206"),
- pair(":status", "304"),
- pair(":status", "400"),
- pair(":status", "404"),
- pair(":status", "500"),
- pair("accept-charset", ""),
- pair("accept-encoding", "gzip, deflate"),
- pair("accept-language", ""),
- pair("accept-ranges", ""),
- pair("accept", ""),
- pair("access-control-allow-origin", ""),
- pair("age", ""),
- pair("allow", ""),
- pair("authorization", ""),
- pair("cache-control", ""),
- pair("content-disposition", ""),
- pair("content-encoding", ""),
- pair("content-language", ""),
- pair("content-length", ""),
- pair("content-location", ""),
- pair("content-range", ""),
- pair("content-type", ""),
- pair("cookie", ""),
- pair("date", ""),
- pair("etag", ""),
- pair("expect", ""),
- pair("expires", ""),
- pair("from", ""),
- pair("host", ""),
- pair("if-match", ""),
- pair("if-modified-since", ""),
- pair("if-none-match", ""),
- pair("if-range", ""),
- pair("if-unmodified-since", ""),
- pair("last-modified", ""),
- pair("link", ""),
- pair("location", ""),
- pair("max-forwards", ""),
- pair("proxy-authenticate", ""),
- pair("proxy-authorization", ""),
- pair("range", ""),
- pair("referer", ""),
- pair("refresh", ""),
- pair("retry-after", ""),
- pair("server", ""),
- pair("set-cookie", ""),
- pair("strict-transport-security", ""),
- pair("transfer-encoding", ""),
- pair("user-agent", ""),
- pair("vary", ""),
- pair("via", ""),
- pair("www-authenticate", ""),
-}
-
-var huffmanCodes = [256]uint32{
- 0x1ff8,
- 0x7fffd8,
- 0xfffffe2,
- 0xfffffe3,
- 0xfffffe4,
- 0xfffffe5,
- 0xfffffe6,
- 0xfffffe7,
- 0xfffffe8,
- 0xffffea,
- 0x3ffffffc,
- 0xfffffe9,
- 0xfffffea,
- 0x3ffffffd,
- 0xfffffeb,
- 0xfffffec,
- 0xfffffed,
- 0xfffffee,
- 0xfffffef,
- 0xffffff0,
- 0xffffff1,
- 0xffffff2,
- 0x3ffffffe,
- 0xffffff3,
- 0xffffff4,
- 0xffffff5,
- 0xffffff6,
- 0xffffff7,
- 0xffffff8,
- 0xffffff9,
- 0xffffffa,
- 0xffffffb,
- 0x14,
- 0x3f8,
- 0x3f9,
- 0xffa,
- 0x1ff9,
- 0x15,
- 0xf8,
- 0x7fa,
- 0x3fa,
- 0x3fb,
- 0xf9,
- 0x7fb,
- 0xfa,
- 0x16,
- 0x17,
- 0x18,
- 0x0,
- 0x1,
- 0x2,
- 0x19,
- 0x1a,
- 0x1b,
- 0x1c,
- 0x1d,
- 0x1e,
- 0x1f,
- 0x5c,
- 0xfb,
- 0x7ffc,
- 0x20,
- 0xffb,
- 0x3fc,
- 0x1ffa,
- 0x21,
- 0x5d,
- 0x5e,
- 0x5f,
- 0x60,
- 0x61,
- 0x62,
- 0x63,
- 0x64,
- 0x65,
- 0x66,
- 0x67,
- 0x68,
- 0x69,
- 0x6a,
- 0x6b,
- 0x6c,
- 0x6d,
- 0x6e,
- 0x6f,
- 0x70,
- 0x71,
- 0x72,
- 0xfc,
- 0x73,
- 0xfd,
- 0x1ffb,
- 0x7fff0,
- 0x1ffc,
- 0x3ffc,
- 0x22,
- 0x7ffd,
- 0x3,
- 0x23,
- 0x4,
- 0x24,
- 0x5,
- 0x25,
- 0x26,
- 0x27,
- 0x6,
- 0x74,
- 0x75,
- 0x28,
- 0x29,
- 0x2a,
- 0x7,
- 0x2b,
- 0x76,
- 0x2c,
- 0x8,
- 0x9,
- 0x2d,
- 0x77,
- 0x78,
- 0x79,
- 0x7a,
- 0x7b,
- 0x7ffe,
- 0x7fc,
- 0x3ffd,
- 0x1ffd,
- 0xffffffc,
- 0xfffe6,
- 0x3fffd2,
- 0xfffe7,
- 0xfffe8,
- 0x3fffd3,
- 0x3fffd4,
- 0x3fffd5,
- 0x7fffd9,
- 0x3fffd6,
- 0x7fffda,
- 0x7fffdb,
- 0x7fffdc,
- 0x7fffdd,
- 0x7fffde,
- 0xffffeb,
- 0x7fffdf,
- 0xffffec,
- 0xffffed,
- 0x3fffd7,
- 0x7fffe0,
- 0xffffee,
- 0x7fffe1,
- 0x7fffe2,
- 0x7fffe3,
- 0x7fffe4,
- 0x1fffdc,
- 0x3fffd8,
- 0x7fffe5,
- 0x3fffd9,
- 0x7fffe6,
- 0x7fffe7,
- 0xffffef,
- 0x3fffda,
- 0x1fffdd,
- 0xfffe9,
- 0x3fffdb,
- 0x3fffdc,
- 0x7fffe8,
- 0x7fffe9,
- 0x1fffde,
- 0x7fffea,
- 0x3fffdd,
- 0x3fffde,
- 0xfffff0,
- 0x1fffdf,
- 0x3fffdf,
- 0x7fffeb,
- 0x7fffec,
- 0x1fffe0,
- 0x1fffe1,
- 0x3fffe0,
- 0x1fffe2,
- 0x7fffed,
- 0x3fffe1,
- 0x7fffee,
- 0x7fffef,
- 0xfffea,
- 0x3fffe2,
- 0x3fffe3,
- 0x3fffe4,
- 0x7ffff0,
- 0x3fffe5,
- 0x3fffe6,
- 0x7ffff1,
- 0x3ffffe0,
- 0x3ffffe1,
- 0xfffeb,
- 0x7fff1,
- 0x3fffe7,
- 0x7ffff2,
- 0x3fffe8,
- 0x1ffffec,
- 0x3ffffe2,
- 0x3ffffe3,
- 0x3ffffe4,
- 0x7ffffde,
- 0x7ffffdf,
- 0x3ffffe5,
- 0xfffff1,
- 0x1ffffed,
- 0x7fff2,
- 0x1fffe3,
- 0x3ffffe6,
- 0x7ffffe0,
- 0x7ffffe1,
- 0x3ffffe7,
- 0x7ffffe2,
- 0xfffff2,
- 0x1fffe4,
- 0x1fffe5,
- 0x3ffffe8,
- 0x3ffffe9,
- 0xffffffd,
- 0x7ffffe3,
- 0x7ffffe4,
- 0x7ffffe5,
- 0xfffec,
- 0xfffff3,
- 0xfffed,
- 0x1fffe6,
- 0x3fffe9,
- 0x1fffe7,
- 0x1fffe8,
- 0x7ffff3,
- 0x3fffea,
- 0x3fffeb,
- 0x1ffffee,
- 0x1ffffef,
- 0xfffff4,
- 0xfffff5,
- 0x3ffffea,
- 0x7ffff4,
- 0x3ffffeb,
- 0x7ffffe6,
- 0x3ffffec,
- 0x3ffffed,
- 0x7ffffe7,
- 0x7ffffe8,
- 0x7ffffe9,
- 0x7ffffea,
- 0x7ffffeb,
- 0xffffffe,
- 0x7ffffec,
- 0x7ffffed,
- 0x7ffffee,
- 0x7ffffef,
- 0x7fffff0,
- 0x3ffffee,
-}
-
-var huffmanCodeLen = [256]uint8{
- 13, 23, 28, 28, 28, 28, 28, 28, 28, 24, 30, 28, 28, 30, 28, 28,
- 28, 28, 28, 28, 28, 28, 30, 28, 28, 28, 28, 28, 28, 28, 28, 28,
- 6, 10, 10, 12, 13, 6, 8, 11, 10, 10, 8, 11, 8, 6, 6, 6,
- 5, 5, 5, 6, 6, 6, 6, 6, 6, 6, 7, 8, 15, 6, 12, 10,
- 13, 6, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7,
- 7, 7, 7, 7, 7, 7, 7, 7, 8, 7, 8, 13, 19, 13, 14, 6,
- 15, 5, 6, 5, 6, 5, 6, 6, 6, 5, 7, 7, 6, 6, 6, 5,
- 6, 7, 6, 5, 5, 6, 7, 7, 7, 7, 7, 15, 11, 14, 13, 28,
- 20, 22, 20, 20, 22, 22, 22, 23, 22, 23, 23, 23, 23, 23, 24, 23,
- 24, 24, 22, 23, 24, 23, 23, 23, 23, 21, 22, 23, 22, 23, 23, 24,
- 22, 21, 20, 22, 22, 23, 23, 21, 23, 22, 22, 24, 21, 22, 23, 23,
- 21, 21, 22, 21, 23, 22, 23, 23, 20, 22, 22, 22, 23, 22, 22, 23,
- 26, 26, 20, 19, 22, 23, 22, 25, 26, 26, 26, 27, 27, 26, 24, 25,
- 19, 21, 26, 27, 27, 26, 27, 24, 21, 21, 26, 26, 28, 27, 27, 27,
- 20, 24, 20, 21, 22, 21, 21, 23, 22, 22, 25, 25, 24, 24, 26, 23,
- 26, 27, 26, 26, 27, 27, 27, 27, 27, 28, 27, 27, 27, 27, 27, 26,
-}