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44 lines
748 B
44 lines
748 B
// URI Header Library
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package sip
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import (
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"bytes"
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"strings"
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)
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// URIHeader is a linked list of ?key=values for URI headers.
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type URIHeader struct {
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Name string
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Value string
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Next *URIHeader
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}
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// Get returns an entry in O(n) time.
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func (p *URIHeader) Get(name string) *URIHeader {
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if p == nil {
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return nil
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}
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if strings.EqualFold(p.Name, name) {
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return p
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}
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return p.Next.Get(name)
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}
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// Append serializes URI headers in insertion order.
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func (p *URIHeader) Append(b *bytes.Buffer) {
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if p == nil {
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return
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}
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if p.Next != nil {
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p.Next.Append(b)
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b.WriteByte('&')
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} else {
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b.WriteByte('?')
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}
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appendEscaped(b, []byte(p.Name), paramc)
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if p.Value != "" {
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b.WriteByte('=')
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appendEscaped(b, []byte(p.Value), paramc)
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}
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}
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