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path: root/plugin/header/header.go
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package header

import (
	"fmt"
	"strings"

	clog "github.com/coredns/coredns/plugin/pkg/log"

	"github.com/miekg/dns"
)

// Supported flags
const (
	authoritative      = "aa"
	recursionAvailable = "ra"
	recursionDesired   = "rd"
)

var log = clog.NewWithPlugin("header")

// ResponseHeaderWriter is a response writer that allows modifying dns.MsgHdr
type ResponseHeaderWriter struct {
	dns.ResponseWriter
	Rules []Rule
}

// WriteMsg implements the dns.ResponseWriter interface.
func (r *ResponseHeaderWriter) WriteMsg(res *dns.Msg) error {
	applyRules(res, r.Rules)
	return r.ResponseWriter.WriteMsg(res)
}

// Write implements the dns.ResponseWriter interface.
func (r *ResponseHeaderWriter) Write(buf []byte) (int, error) {
	log.Warning("ResponseHeaderWriter called with Write: not ensuring headers")
	n, err := r.ResponseWriter.Write(buf)
	return n, err
}

// Rule is used to set/clear Flag in dns.MsgHdr
type Rule struct {
	Flag  string
	State bool
}

func newRules(key string, args []string) ([]Rule, error) {
	if key == "" {
		return nil, fmt.Errorf("no flag action provided")
	}

	if len(args) < 1 {
		return nil, fmt.Errorf("invalid length for flags, at least one should be provided")
	}

	var state bool
	action := strings.ToLower(key)
	switch action {
	case "set":
		state = true
	case "clear":
		state = false
	default:
		return nil, fmt.Errorf("unknown flag action=%s, should be set or clear", action)
	}

	var rules []Rule
	for _, arg := range args {
		flag := strings.ToLower(arg)
		switch flag {
		case authoritative:
		case recursionAvailable:
		case recursionDesired:
		default:
			return nil, fmt.Errorf("unknown/unsupported flag=%s", flag)
		}
		rule := Rule{Flag: flag, State: state}
		rules = append(rules, rule)
	}

	return rules, nil
}

func applyRules(res *dns.Msg, rules []Rule) {
	// handle all supported flags
	for _, rule := range rules {
		switch rule.Flag {
		case authoritative:
			res.Authoritative = rule.State
		case recursionAvailable:
			res.RecursionAvailable = rule.State
		case recursionDesired:
			res.RecursionDesired = rule.State
		}
	}
}
tor/markdoc-renderer'>refactor/markdoc-renderer Unnamed repository; edit this file 'description' to name the repository.
aboutsummaryrefslogtreecommitdiff
path: root/packages/astro/test/fixtures/astro-css-bundling-nested-layouts (unfollow)
AgeCommit message (Expand)AuthorFilesLines
2022-03-01fix vite version (#2694)Gravatar Fred K. Schott 2-5/+5
2022-03-01fix: disable HMR during build (#2684)Gravatar Nate Moore 2-0/+6
2022-03-01[ci] update smoke tests (remote) (#2690)Gravatar github-actions[bot] 2-6/+4
2022-03-01[ci] collect statsGravatar FredKSchott 1-0/+1
2022-02-28[ci] update smoke tests (remote) (#2686)Gravatar github-actions[bot] 96-3363/+8217
2022-02-28[ci] update lockfile (#2687)Gravatar Fred K. Schott 1-101/+75
2022-03-01[ci] collect statsGravatar FredKSchott 1-0/+1
2022-02-28update ci branch nameGravatar Fred K. Schott 1-0/+2
2022-02-28Make smoke tests more deterministic (#2618)Gravatar Fred K. Schott 336-147/+34315
2022-02-28[ci] yarn formatGravatar natemoo-re 1-20/+20
2022-02-28[ci] release (#2683)astro@0.23.3Gravatar github-actions[bot] 31-54/+55
2022-02-28Fix typo (#2674)Gravatar Robin Millette 1-1/+1
2022-02-28[ci] update lockfile (#2676)Gravatar Fred K. Schott 1-6/+6
2022-02-28fix(runtime): do not render empty Fragment (#2667)Gravatar Mateus Esdras 1-0/+3
2022-02-28fix(hmr): HMR regression related to .astro updates (#2681)Gravatar Nate Moore 6-7/+24
2022-02-28Fix HTMLElement expression warning (#2675)Gravatar Jonathan Neal 1-1/+1
2022-02-28[ci] collect statsGravatar FredKSchott 1-0/+1
2022-02-27[ci] update lockfile (#2668)Gravatar Fred K. Schott 1-80/+80
2022-02-27[ci] collect statsGravatar FredKSchott 1-0/+1
2022-02-26[ci] collect statsGravatar FredKSchott 1-0/+1
2022-02-25[ci] yarn formatGravatar natemoo-re 1-20/+20
2022-02-25[ci] release (#2666)astro@0.23.2Gravatar github-actions[bot] 32-59/+57
2022-02-25[ci] yarn formatGravatar natemoo-re 2-12/+6
2022-02-25fix astro scoping of "@import" inside of style tags (#2656)Gravatar Fred K. Schott 3-6/+35
2022-02-25[ci] update lockfile (#2659)Gravatar Fred K. Schott 1-20/+20
2022-02-25feat: improve third-party Astro package compatability (#2665)Gravatar Nate Moore 3-6/+100
2022-02-25get new example working during buildGravatar Fred K. Schott 4-16/+21
2022-02-25[ci] yarn formatGravatar FredKSchott 1-7/+6
2022-02-25Add Non-HTML Pages example (#2637)Gravatar Joel Kuzmarski 11-0/+136
2022-02-25[ci] collect statsGravatar FredKSchott 1-0/+1
2022-02-24[ci] yarn formatGravatar natemoo-re 2-24/+24
2022-02-24[ci] release (#2641)astro@0.23.1@astrojs/markdown-remark@0.6.2Gravatar github-actions[bot] 38-90/+81
2022-02-24ensure utf8 encoding when serving html (#2654)Gravatar Fred K. Schott 3-4/+9
2022-02-24fix(core): Issue #2625. error with process.env.LANG larger than 5 (#2645)Gravatar Javier Cortés 2-1/+6
2022-02-24[ci] update lockfile (#2646)Gravatar Fred K. Schott 1-130/+124
2022-02-24chore: upgrade compiler (#2653)Gravatar Nate Moore 3-11/+11
2022-02-24[ci] yarn formatGravatar natemoo-re 2-5/+5
2022-02-24Add fine-grained HMR support (#2649)Gravatar Nate Moore 7-36/+37
2022-02-24[ci] collect statsGravatar FredKSchott 1-0/+1
2022-02-23Fixed incorrect types and imports (#2630)Gravatar Juan Martín Seery 27-35/+37
2022-02-23Add sass dev dep to blog-multiple-authors example (#2643)Gravatar Joel Kuzmarski 1-1/+2
2022-02-23Fix(component): align starting position in Markdown slot (#2631)Gravatar Shinobu Hayashi 4-6/+61
2022-02-23[ci] yarn formatGravatar matthewp 1-1/+1
2022-02-23Run all smoke tests with the static build (#2609)Gravatar Matthew Phillips 2-26/+32
2022-02-23[ci] collect statsGravatar FredKSchott 1-0/+1
2022-02-22[ci] update lockfile (#2624)Gravatar Fred K. Schott 1-171/+201
2022-02-22Fixed shiki import to work with "type": "module" (#2628)Gravatar Juan Martín Seery 3-5/+13