Function ParseNamedResponseMatcher

modules/caddyhttp/responsematchers.go:69–119

ParseNamedResponseMatcher parses the tokens of a named response matcher. @name { header <field> [<value>] status <code...> } Or, single line syntax: @name [header <field> [<value>]] | [status <code...>]

(d *caddyfile.Dispenser, matchers map[string]ResponseMatcher)

//
//	@name [header <field> [<value>]] | [status <code...>]
func ParseNamedResponseMatcher(d *caddyfile.Dispenser, matchers map[string]ResponseMatcher) error {
	d.Next() // consume matcher name
	definitionName := d.Val()

	if _, ok := matchers[definitionName]; ok {
		return d.Errf("matcher is defined more than once: %s", definitionName)
	}

	matcher := ResponseMatcher{}
	for nesting := d.Nesting(); d.NextArg() || d.NextBlock(nesting); {
		switch d.Val() {
		case "header":
			if matcher.Headers == nil {
				matcher.Headers = http.Header{}
			}

			// reuse the header request matcher's unmarshaler
			headerMatcher := MatchHeader(matcher.Headers)
			err := headerMatcher.UnmarshalCaddyfile(d.NewFromNextSegment())
			if err != nil {
				return err
			}

			matcher.Headers = http.Header(headerMatcher)
		case "status":
			if matcher.StatusCode == nil {
				matcher.StatusCode = []int{}
			}

			args := d.RemainingArgs()
			if len(args) == 0 {
				return d.ArgErr()
			}

			for _, arg := range args {
				if len(arg) == 3 && strings.HasSuffix(arg, "xx") {
					arg = arg[:1]
				}
				statusNum, err := strconv.Atoi(arg)
				if err != nil {
					return d.Errf("bad status value '%s': %v", arg, err)
				}
				matcher.StatusCode = append(matcher.StatusCode, statusNum)
			}
		default:
			return d.Errf("unrecognized response matcher %s", d.Val())
		}
	}
	matchers[definitionName] = matcher
	return nil
}