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Diffstat (limited to 'src/pkg/net/http/header.go')
-rw-r--r--src/pkg/net/http/header.go211
1 files changed, 0 insertions, 211 deletions
diff --git a/src/pkg/net/http/header.go b/src/pkg/net/http/header.go
deleted file mode 100644
index 153b94370..000000000
--- a/src/pkg/net/http/header.go
+++ /dev/null
@@ -1,211 +0,0 @@
-// Copyright 2010 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 http
-
-import (
- "io"
- "net/textproto"
- "sort"
- "strings"
- "sync"
- "time"
-)
-
-var raceEnabled = false // set by race.go
-
-// A Header represents the key-value pairs in an HTTP header.
-type Header map[string][]string
-
-// Add adds the key, value pair to the header.
-// It appends to any existing values associated with key.
-func (h Header) Add(key, value string) {
- textproto.MIMEHeader(h).Add(key, value)
-}
-
-// Set sets the header entries associated with key to
-// the single element value. It replaces any existing
-// values associated with key.
-func (h Header) Set(key, value string) {
- textproto.MIMEHeader(h).Set(key, value)
-}
-
-// Get gets the first value associated with the given key.
-// If there are no values associated with the key, Get returns "".
-// To access multiple values of a key, access the map directly
-// with CanonicalHeaderKey.
-func (h Header) Get(key string) string {
- return textproto.MIMEHeader(h).Get(key)
-}
-
-// get is like Get, but key must already be in CanonicalHeaderKey form.
-func (h Header) get(key string) string {
- if v := h[key]; len(v) > 0 {
- return v[0]
- }
- return ""
-}
-
-// Del deletes the values associated with key.
-func (h Header) Del(key string) {
- textproto.MIMEHeader(h).Del(key)
-}
-
-// Write writes a header in wire format.
-func (h Header) Write(w io.Writer) error {
- return h.WriteSubset(w, nil)
-}
-
-func (h Header) clone() Header {
- h2 := make(Header, len(h))
- for k, vv := range h {
- vv2 := make([]string, len(vv))
- copy(vv2, vv)
- h2[k] = vv2
- }
- return h2
-}
-
-var timeFormats = []string{
- TimeFormat,
- time.RFC850,
- time.ANSIC,
-}
-
-// ParseTime parses a time header (such as the Date: header),
-// trying each of the three formats allowed by HTTP/1.1:
-// TimeFormat, time.RFC850, and time.ANSIC.
-func ParseTime(text string) (t time.Time, err error) {
- for _, layout := range timeFormats {
- t, err = time.Parse(layout, text)
- if err == nil {
- return
- }
- }
- return
-}
-
-var headerNewlineToSpace = strings.NewReplacer("\n", " ", "\r", " ")
-
-type writeStringer interface {
- WriteString(string) (int, error)
-}
-
-// stringWriter implements WriteString on a Writer.
-type stringWriter struct {
- w io.Writer
-}
-
-func (w stringWriter) WriteString(s string) (n int, err error) {
- return w.w.Write([]byte(s))
-}
-
-type keyValues struct {
- key string
- values []string
-}
-
-// A headerSorter implements sort.Interface by sorting a []keyValues
-// by key. It's used as a pointer, so it can fit in a sort.Interface
-// interface value without allocation.
-type headerSorter struct {
- kvs []keyValues
-}
-
-func (s *headerSorter) Len() int { return len(s.kvs) }
-func (s *headerSorter) Swap(i, j int) { s.kvs[i], s.kvs[j] = s.kvs[j], s.kvs[i] }
-func (s *headerSorter) Less(i, j int) bool { return s.kvs[i].key < s.kvs[j].key }
-
-var headerSorterPool = sync.Pool{
- New: func() interface{} { return new(headerSorter) },
-}
-
-// sortedKeyValues returns h's keys sorted in the returned kvs
-// slice. The headerSorter used to sort is also returned, for possible
-// return to headerSorterCache.
-func (h Header) sortedKeyValues(exclude map[string]bool) (kvs []keyValues, hs *headerSorter) {
- hs = headerSorterPool.Get().(*headerSorter)
- if cap(hs.kvs) < len(h) {
- hs.kvs = make([]keyValues, 0, len(h))
- }
- kvs = hs.kvs[:0]
- for k, vv := range h {
- if !exclude[k] {
- kvs = append(kvs, keyValues{k, vv})
- }
- }
- hs.kvs = kvs
- sort.Sort(hs)
- return kvs, hs
-}
-
-// WriteSubset writes a header in wire format.
-// If exclude is not nil, keys where exclude[key] == true are not written.
-func (h Header) WriteSubset(w io.Writer, exclude map[string]bool) error {
- ws, ok := w.(writeStringer)
- if !ok {
- ws = stringWriter{w}
- }
- kvs, sorter := h.sortedKeyValues(exclude)
- for _, kv := range kvs {
- for _, v := range kv.values {
- v = headerNewlineToSpace.Replace(v)
- v = textproto.TrimString(v)
- for _, s := range []string{kv.key, ": ", v, "\r\n"} {
- if _, err := ws.WriteString(s); err != nil {
- return err
- }
- }
- }
- }
- headerSorterPool.Put(sorter)
- return nil
-}
-
-// CanonicalHeaderKey returns the canonical format of the
-// header key s. The canonicalization converts the first
-// letter and any letter following a hyphen to upper case;
-// the rest are converted to lowercase. For example, the
-// canonical key for "accept-encoding" is "Accept-Encoding".
-func CanonicalHeaderKey(s string) string { return textproto.CanonicalMIMEHeaderKey(s) }
-
-// hasToken reports whether token appears with v, ASCII
-// case-insensitive, with space or comma boundaries.
-// token must be all lowercase.
-// v may contain mixed cased.
-func hasToken(v, token string) bool {
- if len(token) > len(v) || token == "" {
- return false
- }
- if v == token {
- return true
- }
- for sp := 0; sp <= len(v)-len(token); sp++ {
- // Check that first character is good.
- // The token is ASCII, so checking only a single byte
- // is sufficient. We skip this potential starting
- // position if both the first byte and its potential
- // ASCII uppercase equivalent (b|0x20) don't match.
- // False positives ('^' => '~') are caught by EqualFold.
- if b := v[sp]; b != token[0] && b|0x20 != token[0] {
- continue
- }
- // Check that start pos is on a valid token boundary.
- if sp > 0 && !isTokenBoundary(v[sp-1]) {
- continue
- }
- // Check that end pos is on a valid token boundary.
- if endPos := sp + len(token); endPos != len(v) && !isTokenBoundary(v[endPos]) {
- continue
- }
- if strings.EqualFold(v[sp:sp+len(token)], token) {
- return true
- }
- }
- return false
-}
-
-func isTokenBoundary(b byte) bool {
- return b == ' ' || b == ',' || b == '\t'
-}