mirror of
https://github.com/caddyserver/caddy.git
synced 2024-12-27 22:23:48 +03:00
952 lines
27 KiB
Go
952 lines
27 KiB
Go
// Copyright 2015 Matthew Holt and The Caddy Authors
|
|
//
|
|
// Licensed under the Apache License, Version 2.0 (the "License");
|
|
// you may not use this file except in compliance with the License.
|
|
// You may obtain a copy of the License at
|
|
//
|
|
// http://www.apache.org/licenses/LICENSE-2.0
|
|
//
|
|
// Unless required by applicable law or agreed to in writing, software
|
|
// distributed under the License is distributed on an "AS IS" BASIS,
|
|
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
// See the License for the specific language governing permissions and
|
|
// limitations under the License.
|
|
|
|
package httpcaddyfile
|
|
|
|
import (
|
|
"encoding/base64"
|
|
"encoding/pem"
|
|
"fmt"
|
|
"html"
|
|
"net/http"
|
|
"os"
|
|
"reflect"
|
|
"strconv"
|
|
"strings"
|
|
"time"
|
|
|
|
"github.com/caddyserver/caddy/v2"
|
|
"github.com/caddyserver/caddy/v2/caddyconfig"
|
|
"github.com/caddyserver/caddy/v2/caddyconfig/caddyfile"
|
|
"github.com/caddyserver/caddy/v2/modules/caddyhttp"
|
|
"github.com/caddyserver/caddy/v2/modules/caddytls"
|
|
"github.com/caddyserver/certmagic"
|
|
"github.com/mholt/acmez/acme"
|
|
"go.uber.org/zap/zapcore"
|
|
)
|
|
|
|
func init() {
|
|
RegisterDirective("bind", parseBind)
|
|
RegisterDirective("tls", parseTLS)
|
|
RegisterHandlerDirective("root", parseRoot)
|
|
RegisterHandlerDirective("vars", parseVars)
|
|
RegisterHandlerDirective("redir", parseRedir)
|
|
RegisterHandlerDirective("respond", parseRespond)
|
|
RegisterHandlerDirective("abort", parseAbort)
|
|
RegisterHandlerDirective("error", parseError)
|
|
RegisterHandlerDirective("route", parseRoute)
|
|
RegisterHandlerDirective("handle", parseHandle)
|
|
RegisterDirective("handle_errors", parseHandleErrors)
|
|
RegisterDirective("log", parseLog)
|
|
RegisterHandlerDirective("skip_log", parseSkipLog)
|
|
}
|
|
|
|
// parseBind parses the bind directive. Syntax:
|
|
//
|
|
// bind <addresses...>
|
|
func parseBind(h Helper) ([]ConfigValue, error) {
|
|
var lnHosts []string
|
|
for h.Next() {
|
|
lnHosts = append(lnHosts, h.RemainingArgs()...)
|
|
}
|
|
return h.NewBindAddresses(lnHosts), nil
|
|
}
|
|
|
|
// parseTLS parses the tls directive. Syntax:
|
|
//
|
|
// tls [<email>|internal]|[<cert_file> <key_file>] {
|
|
// protocols <min> [<max>]
|
|
// ciphers <cipher_suites...>
|
|
// curves <curves...>
|
|
// client_auth {
|
|
// mode [request|require|verify_if_given|require_and_verify]
|
|
// trusted_ca_cert <base64_der>
|
|
// trusted_ca_cert_file <filename>
|
|
// trusted_leaf_cert <base64_der>
|
|
// trusted_leaf_cert_file <filename>
|
|
// }
|
|
// alpn <values...>
|
|
// load <paths...>
|
|
// ca <acme_ca_endpoint>
|
|
// ca_root <pem_file>
|
|
// key_type [ed25519|p256|p384|rsa2048|rsa4096]
|
|
// dns <provider_name> [...]
|
|
// propagation_delay <duration>
|
|
// propagation_timeout <duration>
|
|
// resolvers <dns_servers...>
|
|
// dns_ttl <duration>
|
|
// dns_challenge_override_domain <domain>
|
|
// on_demand
|
|
// eab <key_id> <mac_key>
|
|
// issuer <module_name> [...]
|
|
// get_certificate <module_name> [...]
|
|
// insecure_secrets_log <log_file>
|
|
// }
|
|
func parseTLS(h Helper) ([]ConfigValue, error) {
|
|
cp := new(caddytls.ConnectionPolicy)
|
|
var fileLoader caddytls.FileLoader
|
|
var folderLoader caddytls.FolderLoader
|
|
var certSelector caddytls.CustomCertSelectionPolicy
|
|
var acmeIssuer *caddytls.ACMEIssuer
|
|
var keyType string
|
|
var internalIssuer *caddytls.InternalIssuer
|
|
var issuers []certmagic.Issuer
|
|
var certManagers []certmagic.Manager
|
|
var onDemand bool
|
|
|
|
for h.Next() {
|
|
// file certificate loader
|
|
firstLine := h.RemainingArgs()
|
|
switch len(firstLine) {
|
|
case 0:
|
|
case 1:
|
|
if firstLine[0] == "internal" {
|
|
internalIssuer = new(caddytls.InternalIssuer)
|
|
} else if !strings.Contains(firstLine[0], "@") {
|
|
return nil, h.Err("single argument must either be 'internal' or an email address")
|
|
} else {
|
|
if acmeIssuer == nil {
|
|
acmeIssuer = new(caddytls.ACMEIssuer)
|
|
}
|
|
acmeIssuer.Email = firstLine[0]
|
|
}
|
|
|
|
case 2:
|
|
certFilename := firstLine[0]
|
|
keyFilename := firstLine[1]
|
|
|
|
// tag this certificate so if multiple certs match, specifically
|
|
// this one that the user has provided will be used, see #2588:
|
|
// https://github.com/caddyserver/caddy/issues/2588 ... but we
|
|
// must be careful about how we do this; being careless will
|
|
// lead to failed handshakes
|
|
//
|
|
// we need to remember which cert files we've seen, since we
|
|
// must load each cert only once; otherwise, they each get a
|
|
// different tag... since a cert loaded twice has the same
|
|
// bytes, it will overwrite the first one in the cache, and
|
|
// only the last cert (and its tag) will survive, so any conn
|
|
// policy that is looking for any tag other than the last one
|
|
// to be loaded won't find it, and TLS handshakes will fail
|
|
// (see end of issue #3004)
|
|
//
|
|
// tlsCertTags maps certificate filenames to their tag.
|
|
// This is used to remember which tag is used for each
|
|
// certificate files, since we need to avoid loading
|
|
// the same certificate files more than once, overwriting
|
|
// previous tags
|
|
tlsCertTags, ok := h.State["tlsCertTags"].(map[string]string)
|
|
if !ok {
|
|
tlsCertTags = make(map[string]string)
|
|
h.State["tlsCertTags"] = tlsCertTags
|
|
}
|
|
|
|
tag, ok := tlsCertTags[certFilename]
|
|
if !ok {
|
|
// haven't seen this cert file yet, let's give it a tag
|
|
// and add a loader for it
|
|
tag = fmt.Sprintf("cert%d", len(tlsCertTags))
|
|
fileLoader = append(fileLoader, caddytls.CertKeyFilePair{
|
|
Certificate: certFilename,
|
|
Key: keyFilename,
|
|
Tags: []string{tag},
|
|
})
|
|
// remember this for next time we see this cert file
|
|
tlsCertTags[certFilename] = tag
|
|
}
|
|
certSelector.AnyTag = append(certSelector.AnyTag, tag)
|
|
|
|
default:
|
|
return nil, h.ArgErr()
|
|
}
|
|
|
|
var hasBlock bool
|
|
for nesting := h.Nesting(); h.NextBlock(nesting); {
|
|
hasBlock = true
|
|
|
|
switch h.Val() {
|
|
case "protocols":
|
|
args := h.RemainingArgs()
|
|
if len(args) == 0 {
|
|
return nil, h.SyntaxErr("one or two protocols")
|
|
}
|
|
if len(args) > 0 {
|
|
if _, ok := caddytls.SupportedProtocols[args[0]]; !ok {
|
|
return nil, h.Errf("Wrong protocol name or protocol not supported: '%s'", args[0])
|
|
}
|
|
cp.ProtocolMin = args[0]
|
|
}
|
|
if len(args) > 1 {
|
|
if _, ok := caddytls.SupportedProtocols[args[1]]; !ok {
|
|
return nil, h.Errf("Wrong protocol name or protocol not supported: '%s'", args[1])
|
|
}
|
|
cp.ProtocolMax = args[1]
|
|
}
|
|
|
|
case "ciphers":
|
|
for h.NextArg() {
|
|
if !caddytls.CipherSuiteNameSupported(h.Val()) {
|
|
return nil, h.Errf("Wrong cipher suite name or cipher suite not supported: '%s'", h.Val())
|
|
}
|
|
cp.CipherSuites = append(cp.CipherSuites, h.Val())
|
|
}
|
|
|
|
case "curves":
|
|
for h.NextArg() {
|
|
if _, ok := caddytls.SupportedCurves[h.Val()]; !ok {
|
|
return nil, h.Errf("Wrong curve name or curve not supported: '%s'", h.Val())
|
|
}
|
|
cp.Curves = append(cp.Curves, h.Val())
|
|
}
|
|
|
|
case "client_auth":
|
|
cp.ClientAuthentication = &caddytls.ClientAuthentication{}
|
|
for nesting := h.Nesting(); h.NextBlock(nesting); {
|
|
subdir := h.Val()
|
|
switch subdir {
|
|
case "mode":
|
|
if !h.Args(&cp.ClientAuthentication.Mode) {
|
|
return nil, h.ArgErr()
|
|
}
|
|
if h.NextArg() {
|
|
return nil, h.ArgErr()
|
|
}
|
|
|
|
case "trusted_ca_cert",
|
|
"trusted_leaf_cert":
|
|
if !h.NextArg() {
|
|
return nil, h.ArgErr()
|
|
}
|
|
if subdir == "trusted_ca_cert" {
|
|
cp.ClientAuthentication.TrustedCACerts = append(cp.ClientAuthentication.TrustedCACerts, h.Val())
|
|
} else {
|
|
cp.ClientAuthentication.TrustedLeafCerts = append(cp.ClientAuthentication.TrustedLeafCerts, h.Val())
|
|
}
|
|
|
|
case "trusted_ca_cert_file",
|
|
"trusted_leaf_cert_file":
|
|
if !h.NextArg() {
|
|
return nil, h.ArgErr()
|
|
}
|
|
filename := h.Val()
|
|
certDataPEM, err := os.ReadFile(filename)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
block, _ := pem.Decode(certDataPEM)
|
|
if block == nil || block.Type != "CERTIFICATE" {
|
|
return nil, h.Errf("no CERTIFICATE pem block found in %s", h.Val())
|
|
}
|
|
if subdir == "trusted_ca_cert_file" {
|
|
cp.ClientAuthentication.TrustedCACerts = append(cp.ClientAuthentication.TrustedCACerts,
|
|
base64.StdEncoding.EncodeToString(block.Bytes))
|
|
} else {
|
|
cp.ClientAuthentication.TrustedLeafCerts = append(cp.ClientAuthentication.TrustedLeafCerts,
|
|
base64.StdEncoding.EncodeToString(block.Bytes))
|
|
}
|
|
|
|
default:
|
|
return nil, h.Errf("unknown subdirective for client_auth: %s", subdir)
|
|
}
|
|
}
|
|
|
|
case "alpn":
|
|
args := h.RemainingArgs()
|
|
if len(args) == 0 {
|
|
return nil, h.ArgErr()
|
|
}
|
|
cp.ALPN = args
|
|
|
|
case "load":
|
|
folderLoader = append(folderLoader, h.RemainingArgs()...)
|
|
|
|
case "ca":
|
|
arg := h.RemainingArgs()
|
|
if len(arg) != 1 {
|
|
return nil, h.ArgErr()
|
|
}
|
|
if acmeIssuer == nil {
|
|
acmeIssuer = new(caddytls.ACMEIssuer)
|
|
}
|
|
acmeIssuer.CA = arg[0]
|
|
|
|
case "key_type":
|
|
arg := h.RemainingArgs()
|
|
if len(arg) != 1 {
|
|
return nil, h.ArgErr()
|
|
}
|
|
keyType = arg[0]
|
|
|
|
case "eab":
|
|
arg := h.RemainingArgs()
|
|
if len(arg) != 2 {
|
|
return nil, h.ArgErr()
|
|
}
|
|
if acmeIssuer == nil {
|
|
acmeIssuer = new(caddytls.ACMEIssuer)
|
|
}
|
|
acmeIssuer.ExternalAccount = &acme.EAB{
|
|
KeyID: arg[0],
|
|
MACKey: arg[1],
|
|
}
|
|
|
|
case "issuer":
|
|
if !h.NextArg() {
|
|
return nil, h.ArgErr()
|
|
}
|
|
modName := h.Val()
|
|
modID := "tls.issuance." + modName
|
|
unm, err := caddyfile.UnmarshalModule(h.Dispenser, modID)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
issuer, ok := unm.(certmagic.Issuer)
|
|
if !ok {
|
|
return nil, h.Errf("module %s (%T) is not a certmagic.Issuer", modID, unm)
|
|
}
|
|
issuers = append(issuers, issuer)
|
|
|
|
case "get_certificate":
|
|
if !h.NextArg() {
|
|
return nil, h.ArgErr()
|
|
}
|
|
modName := h.Val()
|
|
modID := "tls.get_certificate." + modName
|
|
unm, err := caddyfile.UnmarshalModule(h.Dispenser, modID)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
certManager, ok := unm.(certmagic.Manager)
|
|
if !ok {
|
|
return nil, h.Errf("module %s (%T) is not a certmagic.CertificateManager", modID, unm)
|
|
}
|
|
certManagers = append(certManagers, certManager)
|
|
|
|
case "dns":
|
|
if !h.NextArg() {
|
|
return nil, h.ArgErr()
|
|
}
|
|
provName := h.Val()
|
|
if acmeIssuer == nil {
|
|
acmeIssuer = new(caddytls.ACMEIssuer)
|
|
}
|
|
if acmeIssuer.Challenges == nil {
|
|
acmeIssuer.Challenges = new(caddytls.ChallengesConfig)
|
|
}
|
|
if acmeIssuer.Challenges.DNS == nil {
|
|
acmeIssuer.Challenges.DNS = new(caddytls.DNSChallengeConfig)
|
|
}
|
|
modID := "dns.providers." + provName
|
|
unm, err := caddyfile.UnmarshalModule(h.Dispenser, modID)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
acmeIssuer.Challenges.DNS.ProviderRaw = caddyconfig.JSONModuleObject(unm, "name", provName, h.warnings)
|
|
|
|
case "resolvers":
|
|
args := h.RemainingArgs()
|
|
if len(args) == 0 {
|
|
return nil, h.ArgErr()
|
|
}
|
|
if acmeIssuer == nil {
|
|
acmeIssuer = new(caddytls.ACMEIssuer)
|
|
}
|
|
if acmeIssuer.Challenges == nil {
|
|
acmeIssuer.Challenges = new(caddytls.ChallengesConfig)
|
|
}
|
|
if acmeIssuer.Challenges.DNS == nil {
|
|
acmeIssuer.Challenges.DNS = new(caddytls.DNSChallengeConfig)
|
|
}
|
|
acmeIssuer.Challenges.DNS.Resolvers = args
|
|
|
|
case "propagation_delay":
|
|
arg := h.RemainingArgs()
|
|
if len(arg) != 1 {
|
|
return nil, h.ArgErr()
|
|
}
|
|
delayStr := arg[0]
|
|
delay, err := caddy.ParseDuration(delayStr)
|
|
if err != nil {
|
|
return nil, h.Errf("invalid propagation_delay duration %s: %v", delayStr, err)
|
|
}
|
|
if acmeIssuer == nil {
|
|
acmeIssuer = new(caddytls.ACMEIssuer)
|
|
}
|
|
if acmeIssuer.Challenges == nil {
|
|
acmeIssuer.Challenges = new(caddytls.ChallengesConfig)
|
|
}
|
|
if acmeIssuer.Challenges.DNS == nil {
|
|
acmeIssuer.Challenges.DNS = new(caddytls.DNSChallengeConfig)
|
|
}
|
|
acmeIssuer.Challenges.DNS.PropagationDelay = caddy.Duration(delay)
|
|
|
|
case "propagation_timeout":
|
|
arg := h.RemainingArgs()
|
|
if len(arg) != 1 {
|
|
return nil, h.ArgErr()
|
|
}
|
|
timeoutStr := arg[0]
|
|
var timeout time.Duration
|
|
if timeoutStr == "-1" {
|
|
timeout = time.Duration(-1)
|
|
} else {
|
|
var err error
|
|
timeout, err = caddy.ParseDuration(timeoutStr)
|
|
if err != nil {
|
|
return nil, h.Errf("invalid propagation_timeout duration %s: %v", timeoutStr, err)
|
|
}
|
|
}
|
|
if acmeIssuer == nil {
|
|
acmeIssuer = new(caddytls.ACMEIssuer)
|
|
}
|
|
if acmeIssuer.Challenges == nil {
|
|
acmeIssuer.Challenges = new(caddytls.ChallengesConfig)
|
|
}
|
|
if acmeIssuer.Challenges.DNS == nil {
|
|
acmeIssuer.Challenges.DNS = new(caddytls.DNSChallengeConfig)
|
|
}
|
|
acmeIssuer.Challenges.DNS.PropagationTimeout = caddy.Duration(timeout)
|
|
|
|
case "dns_ttl":
|
|
arg := h.RemainingArgs()
|
|
if len(arg) != 1 {
|
|
return nil, h.ArgErr()
|
|
}
|
|
ttlStr := arg[0]
|
|
ttl, err := caddy.ParseDuration(ttlStr)
|
|
if err != nil {
|
|
return nil, h.Errf("invalid dns_ttl duration %s: %v", ttlStr, err)
|
|
}
|
|
if acmeIssuer == nil {
|
|
acmeIssuer = new(caddytls.ACMEIssuer)
|
|
}
|
|
if acmeIssuer.Challenges == nil {
|
|
acmeIssuer.Challenges = new(caddytls.ChallengesConfig)
|
|
}
|
|
if acmeIssuer.Challenges.DNS == nil {
|
|
acmeIssuer.Challenges.DNS = new(caddytls.DNSChallengeConfig)
|
|
}
|
|
acmeIssuer.Challenges.DNS.TTL = caddy.Duration(ttl)
|
|
|
|
case "dns_challenge_override_domain":
|
|
arg := h.RemainingArgs()
|
|
if len(arg) != 1 {
|
|
return nil, h.ArgErr()
|
|
}
|
|
if acmeIssuer == nil {
|
|
acmeIssuer = new(caddytls.ACMEIssuer)
|
|
}
|
|
if acmeIssuer.Challenges == nil {
|
|
acmeIssuer.Challenges = new(caddytls.ChallengesConfig)
|
|
}
|
|
if acmeIssuer.Challenges.DNS == nil {
|
|
acmeIssuer.Challenges.DNS = new(caddytls.DNSChallengeConfig)
|
|
}
|
|
acmeIssuer.Challenges.DNS.OverrideDomain = arg[0]
|
|
|
|
case "ca_root":
|
|
arg := h.RemainingArgs()
|
|
if len(arg) != 1 {
|
|
return nil, h.ArgErr()
|
|
}
|
|
if acmeIssuer == nil {
|
|
acmeIssuer = new(caddytls.ACMEIssuer)
|
|
}
|
|
acmeIssuer.TrustedRootsPEMFiles = append(acmeIssuer.TrustedRootsPEMFiles, arg[0])
|
|
|
|
case "on_demand":
|
|
if h.NextArg() {
|
|
return nil, h.ArgErr()
|
|
}
|
|
onDemand = true
|
|
|
|
case "insecure_secrets_log":
|
|
if !h.NextArg() {
|
|
return nil, h.ArgErr()
|
|
}
|
|
cp.InsecureSecretsLog = h.Val()
|
|
|
|
default:
|
|
return nil, h.Errf("unknown subdirective: %s", h.Val())
|
|
}
|
|
}
|
|
|
|
// a naked tls directive is not allowed
|
|
if len(firstLine) == 0 && !hasBlock {
|
|
return nil, h.ArgErr()
|
|
}
|
|
}
|
|
|
|
// begin building the final config values
|
|
configVals := []ConfigValue{}
|
|
|
|
// certificate loaders
|
|
if len(fileLoader) > 0 {
|
|
configVals = append(configVals, ConfigValue{
|
|
Class: "tls.cert_loader",
|
|
Value: fileLoader,
|
|
})
|
|
}
|
|
if len(folderLoader) > 0 {
|
|
configVals = append(configVals, ConfigValue{
|
|
Class: "tls.cert_loader",
|
|
Value: folderLoader,
|
|
})
|
|
}
|
|
|
|
// some tls subdirectives are shortcuts that implicitly configure issuers, and the
|
|
// user can also configure issuers explicitly using the issuer subdirective; the
|
|
// logic to support both would likely be complex, or at least unintuitive
|
|
if len(issuers) > 0 && (acmeIssuer != nil || internalIssuer != nil) {
|
|
return nil, h.Err("cannot mix issuer subdirective (explicit issuers) with other issuer-specific subdirectives (implicit issuers)")
|
|
}
|
|
if acmeIssuer != nil && internalIssuer != nil {
|
|
return nil, h.Err("cannot create both ACME and internal certificate issuers")
|
|
}
|
|
|
|
// now we should either have: explicitly-created issuers, or an implicitly-created
|
|
// ACME or internal issuer, or no issuers at all
|
|
switch {
|
|
case len(issuers) > 0:
|
|
for _, issuer := range issuers {
|
|
configVals = append(configVals, ConfigValue{
|
|
Class: "tls.cert_issuer",
|
|
Value: issuer,
|
|
})
|
|
}
|
|
|
|
case acmeIssuer != nil:
|
|
// implicit ACME issuers (from various subdirectives) - use defaults; there might be more than one
|
|
defaultIssuers := caddytls.DefaultIssuers()
|
|
|
|
// if a CA endpoint was set, override multiple implicit issuers since it's a specific one
|
|
if acmeIssuer.CA != "" {
|
|
defaultIssuers = []certmagic.Issuer{acmeIssuer}
|
|
}
|
|
|
|
for _, issuer := range defaultIssuers {
|
|
switch iss := issuer.(type) {
|
|
case *caddytls.ACMEIssuer:
|
|
issuer = acmeIssuer
|
|
case *caddytls.ZeroSSLIssuer:
|
|
iss.ACMEIssuer = acmeIssuer
|
|
}
|
|
configVals = append(configVals, ConfigValue{
|
|
Class: "tls.cert_issuer",
|
|
Value: issuer,
|
|
})
|
|
}
|
|
|
|
case internalIssuer != nil:
|
|
configVals = append(configVals, ConfigValue{
|
|
Class: "tls.cert_issuer",
|
|
Value: internalIssuer,
|
|
})
|
|
}
|
|
|
|
// certificate key type
|
|
if keyType != "" {
|
|
configVals = append(configVals, ConfigValue{
|
|
Class: "tls.key_type",
|
|
Value: keyType,
|
|
})
|
|
}
|
|
|
|
// on-demand TLS
|
|
if onDemand {
|
|
configVals = append(configVals, ConfigValue{
|
|
Class: "tls.on_demand",
|
|
Value: true,
|
|
})
|
|
}
|
|
for _, certManager := range certManagers {
|
|
configVals = append(configVals, ConfigValue{
|
|
Class: "tls.cert_manager",
|
|
Value: certManager,
|
|
})
|
|
}
|
|
|
|
// custom certificate selection
|
|
if len(certSelector.AnyTag) > 0 {
|
|
cp.CertSelection = &certSelector
|
|
}
|
|
|
|
// connection policy -- always add one, to ensure that TLS
|
|
// is enabled, because this directive was used (this is
|
|
// needed, for instance, when a site block has a key of
|
|
// just ":5000" - i.e. no hostname, and only on-demand TLS
|
|
// is enabled)
|
|
configVals = append(configVals, ConfigValue{
|
|
Class: "tls.connection_policy",
|
|
Value: cp,
|
|
})
|
|
|
|
return configVals, nil
|
|
}
|
|
|
|
// parseRoot parses the root directive. Syntax:
|
|
//
|
|
// root [<matcher>] <path>
|
|
func parseRoot(h Helper) (caddyhttp.MiddlewareHandler, error) {
|
|
var root string
|
|
for h.Next() {
|
|
if !h.NextArg() {
|
|
return nil, h.ArgErr()
|
|
}
|
|
root = h.Val()
|
|
if h.NextArg() {
|
|
return nil, h.ArgErr()
|
|
}
|
|
}
|
|
return caddyhttp.VarsMiddleware{"root": root}, nil
|
|
}
|
|
|
|
// parseVars parses the vars directive. See its UnmarshalCaddyfile method for syntax.
|
|
func parseVars(h Helper) (caddyhttp.MiddlewareHandler, error) {
|
|
v := new(caddyhttp.VarsMiddleware)
|
|
err := v.UnmarshalCaddyfile(h.Dispenser)
|
|
return v, err
|
|
}
|
|
|
|
// parseRedir parses the redir directive. Syntax:
|
|
//
|
|
// redir [<matcher>] <to> [<code>]
|
|
//
|
|
// <code> can be "permanent" for 301, "temporary" for 302 (default),
|
|
// a placeholder, or any number in the 3xx range or 401. The special
|
|
// code "html" can be used to redirect only browser clients (will
|
|
// respond with HTTP 200 and no Location header; redirect is performed
|
|
// with JS and a meta tag).
|
|
func parseRedir(h Helper) (caddyhttp.MiddlewareHandler, error) {
|
|
if !h.Next() {
|
|
return nil, h.ArgErr()
|
|
}
|
|
|
|
if !h.NextArg() {
|
|
return nil, h.ArgErr()
|
|
}
|
|
to := h.Val()
|
|
|
|
var code string
|
|
if h.NextArg() {
|
|
code = h.Val()
|
|
}
|
|
|
|
var body string
|
|
var hdr http.Header
|
|
switch code {
|
|
case "permanent":
|
|
code = "301"
|
|
case "temporary", "":
|
|
code = "302"
|
|
case "html":
|
|
// Script tag comes first since that will better imitate a redirect in the browser's
|
|
// history, but the meta tag is a fallback for most non-JS clients.
|
|
const metaRedir = `<!DOCTYPE html>
|
|
<html>
|
|
<head>
|
|
<title>Redirecting...</title>
|
|
<script>window.location.replace("%s");</script>
|
|
<meta http-equiv="refresh" content="0; URL='%s'">
|
|
</head>
|
|
<body>Redirecting to <a href="%s">%s</a>...</body>
|
|
</html>
|
|
`
|
|
safeTo := html.EscapeString(to)
|
|
body = fmt.Sprintf(metaRedir, safeTo, safeTo, safeTo, safeTo)
|
|
code = "200" // don't redirect non-browser clients
|
|
default:
|
|
// Allow placeholders for the code
|
|
if strings.HasPrefix(code, "{") {
|
|
break
|
|
}
|
|
// Try to validate as an integer otherwise
|
|
codeInt, err := strconv.Atoi(code)
|
|
if err != nil {
|
|
return nil, h.Errf("Not a supported redir code type or not valid integer: '%s'", code)
|
|
}
|
|
// Sometimes, a 401 with Location header is desirable because
|
|
// requests made with XHR will "eat" the 3xx redirect; so if
|
|
// the intent was to redirect to an auth page, a 3xx won't
|
|
// work. Responding with 401 allows JS code to read the
|
|
// Location header and do a window.location redirect manually.
|
|
// see https://stackoverflow.com/a/2573589/846934
|
|
// see https://github.com/oauth2-proxy/oauth2-proxy/issues/1522
|
|
if codeInt < 300 || (codeInt > 399 && codeInt != 401) {
|
|
return nil, h.Errf("Redir code not in the 3xx range or 401: '%v'", codeInt)
|
|
}
|
|
}
|
|
|
|
// don't redirect non-browser clients
|
|
if code != "200" {
|
|
hdr = http.Header{"Location": []string{to}}
|
|
}
|
|
|
|
return caddyhttp.StaticResponse{
|
|
StatusCode: caddyhttp.WeakString(code),
|
|
Headers: hdr,
|
|
Body: body,
|
|
}, nil
|
|
}
|
|
|
|
// parseRespond parses the respond directive.
|
|
func parseRespond(h Helper) (caddyhttp.MiddlewareHandler, error) {
|
|
sr := new(caddyhttp.StaticResponse)
|
|
err := sr.UnmarshalCaddyfile(h.Dispenser)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
return sr, nil
|
|
}
|
|
|
|
// parseAbort parses the abort directive.
|
|
func parseAbort(h Helper) (caddyhttp.MiddlewareHandler, error) {
|
|
h.Next() // consume directive
|
|
for h.Next() || h.NextBlock(0) {
|
|
return nil, h.ArgErr()
|
|
}
|
|
return &caddyhttp.StaticResponse{Abort: true}, nil
|
|
}
|
|
|
|
// parseError parses the error directive.
|
|
func parseError(h Helper) (caddyhttp.MiddlewareHandler, error) {
|
|
se := new(caddyhttp.StaticError)
|
|
err := se.UnmarshalCaddyfile(h.Dispenser)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
return se, nil
|
|
}
|
|
|
|
// parseRoute parses the route directive.
|
|
func parseRoute(h Helper) (caddyhttp.MiddlewareHandler, error) {
|
|
sr := new(caddyhttp.Subroute)
|
|
|
|
allResults, err := parseSegmentAsConfig(h)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
|
|
for _, result := range allResults {
|
|
switch handler := result.Value.(type) {
|
|
case caddyhttp.Route:
|
|
sr.Routes = append(sr.Routes, handler)
|
|
case caddyhttp.Subroute:
|
|
// directives which return a literal subroute instead of a route
|
|
// means they intend to keep those handlers together without
|
|
// them being reordered; we're doing that anyway since we're in
|
|
// the route directive, so just append its handlers
|
|
sr.Routes = append(sr.Routes, handler.Routes...)
|
|
default:
|
|
return nil, h.Errf("%s directive returned something other than an HTTP route or subroute: %#v (only handler directives can be used in routes)", result.directive, result.Value)
|
|
}
|
|
}
|
|
|
|
return sr, nil
|
|
}
|
|
|
|
func parseHandle(h Helper) (caddyhttp.MiddlewareHandler, error) {
|
|
return ParseSegmentAsSubroute(h)
|
|
}
|
|
|
|
func parseHandleErrors(h Helper) ([]ConfigValue, error) {
|
|
subroute, err := ParseSegmentAsSubroute(h)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
return []ConfigValue{
|
|
{
|
|
Class: "error_route",
|
|
Value: subroute,
|
|
},
|
|
}, nil
|
|
}
|
|
|
|
// parseLog parses the log directive. Syntax:
|
|
//
|
|
// log {
|
|
// output <writer_module> ...
|
|
// format <encoder_module> ...
|
|
// level <level>
|
|
// }
|
|
func parseLog(h Helper) ([]ConfigValue, error) {
|
|
return parseLogHelper(h, nil)
|
|
}
|
|
|
|
// parseLogHelper is used both for the parseLog directive within Server Blocks,
|
|
// as well as the global "log" option for configuring loggers at the global
|
|
// level. The parseAsGlobalOption parameter is used to distinguish any differing logic
|
|
// between the two.
|
|
func parseLogHelper(h Helper, globalLogNames map[string]struct{}) ([]ConfigValue, error) {
|
|
// When the globalLogNames parameter is passed in, we make
|
|
// modifications to the parsing behavior.
|
|
parseAsGlobalOption := globalLogNames != nil
|
|
|
|
var configValues []ConfigValue
|
|
for h.Next() {
|
|
// Logic below expects that a name is always present when a
|
|
// global option is being parsed.
|
|
var globalLogName string
|
|
if parseAsGlobalOption {
|
|
if h.NextArg() {
|
|
globalLogName = h.Val()
|
|
|
|
// Only a single argument is supported.
|
|
if h.NextArg() {
|
|
return nil, h.ArgErr()
|
|
}
|
|
} else {
|
|
// If there is no log name specified, we
|
|
// reference the default logger. See the
|
|
// setupNewDefault function in the logging
|
|
// package for where this is configured.
|
|
globalLogName = caddy.DefaultLoggerName
|
|
}
|
|
|
|
// Verify this name is unused.
|
|
_, used := globalLogNames[globalLogName]
|
|
if used {
|
|
return nil, h.Err("duplicate global log option for: " + globalLogName)
|
|
}
|
|
globalLogNames[globalLogName] = struct{}{}
|
|
} else {
|
|
// No arguments are supported for the server block log directive
|
|
if h.NextArg() {
|
|
return nil, h.ArgErr()
|
|
}
|
|
}
|
|
|
|
cl := new(caddy.CustomLog)
|
|
|
|
for h.NextBlock(0) {
|
|
switch h.Val() {
|
|
case "output":
|
|
if !h.NextArg() {
|
|
return nil, h.ArgErr()
|
|
}
|
|
moduleName := h.Val()
|
|
|
|
// can't use the usual caddyfile.Unmarshaler flow with the
|
|
// standard writers because they are in the caddy package
|
|
// (because they are the default) and implementing that
|
|
// interface there would unfortunately create circular import
|
|
var wo caddy.WriterOpener
|
|
switch moduleName {
|
|
case "stdout":
|
|
wo = caddy.StdoutWriter{}
|
|
case "stderr":
|
|
wo = caddy.StderrWriter{}
|
|
case "discard":
|
|
wo = caddy.DiscardWriter{}
|
|
default:
|
|
modID := "caddy.logging.writers." + moduleName
|
|
unm, err := caddyfile.UnmarshalModule(h.Dispenser, modID)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
var ok bool
|
|
wo, ok = unm.(caddy.WriterOpener)
|
|
if !ok {
|
|
return nil, h.Errf("module %s (%T) is not a WriterOpener", modID, unm)
|
|
}
|
|
}
|
|
cl.WriterRaw = caddyconfig.JSONModuleObject(wo, "output", moduleName, h.warnings)
|
|
|
|
case "format":
|
|
if !h.NextArg() {
|
|
return nil, h.ArgErr()
|
|
}
|
|
moduleName := h.Val()
|
|
moduleID := "caddy.logging.encoders." + moduleName
|
|
unm, err := caddyfile.UnmarshalModule(h.Dispenser, moduleID)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
enc, ok := unm.(zapcore.Encoder)
|
|
if !ok {
|
|
return nil, h.Errf("module %s (%T) is not a zapcore.Encoder", moduleID, unm)
|
|
}
|
|
cl.EncoderRaw = caddyconfig.JSONModuleObject(enc, "format", moduleName, h.warnings)
|
|
|
|
case "level":
|
|
if !h.NextArg() {
|
|
return nil, h.ArgErr()
|
|
}
|
|
cl.Level = h.Val()
|
|
if h.NextArg() {
|
|
return nil, h.ArgErr()
|
|
}
|
|
|
|
case "include":
|
|
// This configuration is only allowed in the global options
|
|
if !parseAsGlobalOption {
|
|
return nil, h.ArgErr()
|
|
}
|
|
for h.NextArg() {
|
|
cl.Include = append(cl.Include, h.Val())
|
|
}
|
|
|
|
case "exclude":
|
|
// This configuration is only allowed in the global options
|
|
if !parseAsGlobalOption {
|
|
return nil, h.ArgErr()
|
|
}
|
|
for h.NextArg() {
|
|
cl.Exclude = append(cl.Exclude, h.Val())
|
|
}
|
|
|
|
default:
|
|
return nil, h.Errf("unrecognized subdirective: %s", h.Val())
|
|
}
|
|
}
|
|
|
|
var val namedCustomLog
|
|
// Skip handling of empty logging configs
|
|
if !reflect.DeepEqual(cl, new(caddy.CustomLog)) {
|
|
if parseAsGlobalOption {
|
|
// Use indicated name for global log options
|
|
val.name = globalLogName
|
|
val.log = cl
|
|
} else {
|
|
// Construct a log name for server log streams
|
|
logCounter, ok := h.State["logCounter"].(int)
|
|
if !ok {
|
|
logCounter = 0
|
|
}
|
|
val.name = fmt.Sprintf("log%d", logCounter)
|
|
cl.Include = []string{"http.log.access." + val.name}
|
|
val.log = cl
|
|
logCounter++
|
|
h.State["logCounter"] = logCounter
|
|
}
|
|
}
|
|
configValues = append(configValues, ConfigValue{
|
|
Class: "custom_log",
|
|
Value: val,
|
|
})
|
|
}
|
|
return configValues, nil
|
|
}
|
|
|
|
// parseSkipLog parses the skip_log directive. Syntax:
|
|
//
|
|
// skip_log [<matcher>]
|
|
func parseSkipLog(h Helper) (caddyhttp.MiddlewareHandler, error) {
|
|
for h.Next() {
|
|
if h.NextArg() {
|
|
return nil, h.ArgErr()
|
|
}
|
|
}
|
|
return caddyhttp.VarsMiddleware{"skip_log": true}, nil
|
|
}
|