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Initial implementation of global default SNI option (#3047) 

* add global default sni

* fixed grammar

* httpcaddyfile: Reduce some duplicated code

* Um, re-commit already-committed commit, I guess? (sigh)

Co-authored-by: Matt Holt <mholt@users.noreply.github.com>
This commit is contained in:
Mark Sargent 2020-02-27 12:01:47 +13:00 committed by GitHub
parent 5d97522d18
commit 2de0acc11f
No known key found for this signature in database
GPG Key ID: 4AEE18F83AFDEB23
3 changed files with 24 additions and 20 deletions
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15
caddyconfig/httpcaddyfile/httptype.go
View File

@ -171,6 +171,7 @@ func (st ServerType) Setup(originalServerBlocks []caddyfile.ServerBlock,
httpApp := caddyhttp.App{
HTTPPort: tryInt(options["http_port"], &warnings),
HTTPSPort: tryInt(options["https_port"], &warnings),
DefaultSNI: tryString(options["default_sni"], &warnings),
Servers: servers,
}
@ -364,6 +365,8 @@ func (ServerType) evaluateGlobalOptionsBlock(serverBlocks []serverBlock, options
val, err = parseOptHTTPPort(disp)
case "https_port":
val, err = parseOptHTTPSPort(disp)
case "default_sni":
val, err = parseOptSingleString(disp)
case "order":
val, err = parseOptOrder(disp)
case "experimental_http3":
@ -371,9 +374,9 @@ func (ServerType) evaluateGlobalOptionsBlock(serverBlocks []serverBlock, options
case "storage":
val, err = parseOptStorage(disp)
case "acme_ca", "acme_dns", "acme_ca_root":
val, err = parseOptACME(disp)
val, err = parseOptSingleString(disp)
case "email":
val, err = parseOptEmail(disp)
val, err = parseOptSingleString(disp)
case "admin":
val, err = parseOptAdmin(disp)
case "debug":
@ -951,6 +954,14 @@ func tryInt(val interface{}, warnings *[]caddyconfig.Warning) int {
return intVal
}
func tryString(val interface{}, warnings *[]caddyconfig.Warning) string {
stringVal, ok := val.(string)
if val != nil && !ok && warnings != nil {
*warnings = append(*warnings, caddyconfig.Warning{Message: "not a string type"})
}
return stringVal
}
// sliceContains returns true if needle is in haystack.
func sliceContains(haystack []string, needle string) bool {
for _, s := range haystack {

16
caddyconfig/httpcaddyfile/options.go
View File

@ -162,19 +162,7 @@ func parseOptStorage(d *caddyfile.Dispenser) (caddy.StorageConverter, error) {
return storage, nil
}
func parseOptACME(d *caddyfile.Dispenser) (string, error) {
d.Next() // consume parameter name
if !d.Next() {
return "", d.ArgErr()
}
val := d.Val()
if d.Next() {
return "", d.ArgErr()
}
return val, nil
}
func parseOptEmail(d *caddyfile.Dispenser) (string, error) {
func parseOptSingleString(d *caddyfile.Dispenser) (string, error) {
d.Next() // consume parameter name
if !d.Next() {
return "", d.ArgErr()
@ -190,11 +178,9 @@ func parseOptAdmin(d *caddyfile.Dispenser) (string, error) {
if d.Next() {
var listenAddress string
d.AllArgs(&listenAddress)
if listenAddress == "" {
listenAddress = caddy.DefaultAdminListen
}
return listenAddress, nil
}
return "", nil

7
modules/caddyhttp/caddyhttp.go
View File

@ -29,6 +29,7 @@ import (
"github.com/caddyserver/caddy/v2"
"github.com/lucas-clemente/quic-go/http3"
"github.com/mholt/certmagic"
"go.uber.org/zap"
)
@ -111,6 +112,10 @@ type App struct {
// affect functionality.
Servers map[string]*Server `json:"servers,omitempty"`
// DefaultSNI if set configures all certificate lookups to fallback to use
// this SNI name if a more specific certificate could not be found
DefaultSNI string `json:"default_sni,omitempty"`
servers []*http.Server
h3servers []*http3.Server
h3listeners []net.PacketConn
@ -134,6 +139,8 @@ func (app *App) Provision(ctx caddy.Context) error {
repl := caddy.NewReplacer()
certmagic.Default.DefaultServerName = app.DefaultSNI
// this provisions the matchers for each route,
// and prepares auto HTTP->HTTP redirects, and
// is required before we provision each server