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parse.go
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/
parse.go
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package headers
import "github.com/mholt/caddy/middleware"
func parse(c middleware.Controller) ([]HeaderRule, error) {
var rules []HeaderRule
for c.NextLine() {
var head HeaderRule
var isNewPattern bool
if !c.NextArg() {
return rules, c.ArgErr()
}
pattern := c.Val()
// See if we already have a definition for this URL pattern...
for _, h := range rules {
if h.Url == pattern {
head = h
break
}
}
// ...otherwise, this is a new pattern
if head.Url == "" {
head.Url = pattern
isNewPattern = true
}
for c.NextBlock() {
// A block of headers was opened...
h := Header{Name: c.Val()}
if c.NextArg() {
h.Value = c.Val()
}
head.Headers = append(head.Headers, h)
}
if c.NextArg() {
// ... or single header was defined as an argument instead.
h := Header{Name: c.Val()}
h.Value = c.Val()
if c.NextArg() {
h.Value = c.Val()
}
head.Headers = append(head.Headers, h)
}
if isNewPattern {
rules = append(rules, head)
} else {
for i := 0; i < len(rules); i++ {
if rules[i].Url == pattern {
rules[i] = head
break
}
}
}
}
return rules, nil
}