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Change all license headers to comply with REUSE specification. Fix #16132 Co-authored-by: flynnnnnnnnnn <flynnnnnnnnnn@github> Co-authored-by: John Olheiser <john.olheiser@gmail.com>
192 lines
7.0 KiB
Go
192 lines
7.0 KiB
Go
// Copyright 2021 The Gitea Authors. All rights reserved.
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// SPDX-License-Identifier: MIT
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package cmd
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import (
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"crypto/tls"
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"net/http"
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"os"
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"strings"
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"code.gitea.io/gitea/modules/graceful"
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"code.gitea.io/gitea/modules/log"
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"code.gitea.io/gitea/modules/setting"
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"github.com/klauspost/cpuid/v2"
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)
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var tlsVersionStringMap = map[string]uint16{
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"": tls.VersionTLS12, // Default to tls.VersionTLS12
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"tlsv1.0": tls.VersionTLS10,
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"tlsv1.1": tls.VersionTLS11,
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"tlsv1.2": tls.VersionTLS12,
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"tlsv1.3": tls.VersionTLS13,
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}
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func toTLSVersion(version string) uint16 {
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tlsVersion, ok := tlsVersionStringMap[strings.TrimSpace(strings.ToLower(version))]
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if !ok {
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log.Warn("Unknown tls version: %s", version)
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return 0
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}
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return tlsVersion
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}
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var curveStringMap = map[string]tls.CurveID{
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"x25519": tls.X25519,
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"p256": tls.CurveP256,
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"p384": tls.CurveP384,
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"p521": tls.CurveP521,
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}
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func toCurvePreferences(preferences []string) []tls.CurveID {
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ids := make([]tls.CurveID, 0, len(preferences))
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for _, pref := range preferences {
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id, ok := curveStringMap[strings.TrimSpace(strings.ToLower(pref))]
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if !ok {
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log.Warn("Unknown curve: %s", pref)
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}
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if id != 0 {
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ids = append(ids, id)
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}
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}
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return ids
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}
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var cipherStringMap = map[string]uint16{
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"rsa_with_rc4_128_sha": tls.TLS_RSA_WITH_RC4_128_SHA,
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"rsa_with_3des_ede_cbc_sha": tls.TLS_RSA_WITH_3DES_EDE_CBC_SHA,
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"rsa_with_aes_128_cbc_sha": tls.TLS_RSA_WITH_AES_128_CBC_SHA,
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"rsa_with_aes_256_cbc_sha": tls.TLS_RSA_WITH_AES_256_CBC_SHA,
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"rsa_with_aes_128_cbc_sha256": tls.TLS_RSA_WITH_AES_128_CBC_SHA256,
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"rsa_with_aes_128_gcm_sha256": tls.TLS_RSA_WITH_AES_128_GCM_SHA256,
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"rsa_with_aes_256_gcm_sha384": tls.TLS_RSA_WITH_AES_256_GCM_SHA384,
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"ecdhe_ecdsa_with_rc4_128_sha": tls.TLS_ECDHE_ECDSA_WITH_RC4_128_SHA,
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"ecdhe_ecdsa_with_aes_128_cbc_sha": tls.TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA,
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"ecdhe_ecdsa_with_aes_256_cbc_sha": tls.TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA,
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"ecdhe_rsa_with_rc4_128_sha": tls.TLS_ECDHE_RSA_WITH_RC4_128_SHA,
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"ecdhe_rsa_with_3des_ede_cbc_sha": tls.TLS_ECDHE_RSA_WITH_3DES_EDE_CBC_SHA,
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"ecdhe_rsa_with_aes_128_cbc_sha": tls.TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA,
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"ecdhe_rsa_with_aes_256_cbc_sha": tls.TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA,
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"ecdhe_ecdsa_with_aes_128_cbc_sha256": tls.TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA256,
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"ecdhe_rsa_with_aes_128_cbc_sha256": tls.TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256,
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"ecdhe_rsa_with_aes_128_gcm_sha256": tls.TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256,
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"ecdhe_ecdsa_with_aes_128_gcm_sha256": tls.TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256,
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"ecdhe_rsa_with_aes_256_gcm_sha384": tls.TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384,
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"ecdhe_ecdsa_with_aes_256_gcm_sha384": tls.TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384,
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"ecdhe_rsa_with_chacha20_poly1305_sha256": tls.TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305_SHA256,
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"ecdhe_ecdsa_with_chacha20_poly1305_sha256": tls.TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305_SHA256,
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"ecdhe_rsa_with_chacha20_poly1305": tls.TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305,
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"ecdhe_ecdsa_with_chacha20_poly1305": tls.TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305,
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"aes_128_gcm_sha256": tls.TLS_AES_128_GCM_SHA256,
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"aes_256_gcm_sha384": tls.TLS_AES_256_GCM_SHA384,
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"chacha20_poly1305_sha256": tls.TLS_CHACHA20_POLY1305_SHA256,
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}
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func toTLSCiphers(cipherStrings []string) []uint16 {
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ciphers := make([]uint16, 0, len(cipherStrings))
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for _, cipherString := range cipherStrings {
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cipher, ok := cipherStringMap[strings.TrimSpace(strings.ToLower(cipherString))]
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if !ok {
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log.Warn("Unknown cipher: %s", cipherString)
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}
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if cipher != 0 {
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ciphers = append(ciphers, cipher)
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}
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}
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return ciphers
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}
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// defaultCiphers uses hardware support to check if AES is specifically
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// supported by the CPU.
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//
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// If AES is supported AES ciphers will be preferred over ChaCha based ciphers
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// (This code is directly inspired by the certmagic code.)
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func defaultCiphers() []uint16 {
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if cpuid.CPU.Supports(cpuid.AESNI) {
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return defaultCiphersAESfirst
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}
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return defaultCiphersChaChaFirst
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}
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var (
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defaultCiphersAES = []uint16{
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tls.TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384,
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tls.TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384,
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tls.TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256,
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tls.TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256,
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}
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defaultCiphersChaCha = []uint16{
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tls.TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305,
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tls.TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305,
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}
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defaultCiphersAESfirst = append(defaultCiphersAES, defaultCiphersChaCha...)
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defaultCiphersChaChaFirst = append(defaultCiphersChaCha, defaultCiphersAES...)
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)
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// runHTTPS listens on the provided network address and then calls
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// Serve to handle requests on incoming TLS connections.
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//
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// Filenames containing a certificate and matching private key for the server must
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// be provided. If the certificate is signed by a certificate authority, the
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// certFile should be the concatenation of the server's certificate followed by the
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// CA's certificate.
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func runHTTPS(network, listenAddr, name, certFile, keyFile string, m http.Handler, useProxyProtocol, proxyProtocolTLSBridging bool) error {
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tlsConfig := &tls.Config{}
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if tlsConfig.NextProtos == nil {
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tlsConfig.NextProtos = []string{"h2", "http/1.1"}
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}
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if version := toTLSVersion(setting.SSLMinimumVersion); version != 0 {
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tlsConfig.MinVersion = version
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}
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if version := toTLSVersion(setting.SSLMaximumVersion); version != 0 {
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tlsConfig.MaxVersion = version
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}
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// Set curve preferences
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tlsConfig.CurvePreferences = []tls.CurveID{
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tls.X25519,
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tls.CurveP256,
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}
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if curves := toCurvePreferences(setting.SSLCurvePreferences); len(curves) > 0 {
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tlsConfig.CurvePreferences = curves
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}
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// Set cipher suites
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tlsConfig.CipherSuites = defaultCiphers()
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if ciphers := toTLSCiphers(setting.SSLCipherSuites); len(ciphers) > 0 {
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tlsConfig.CipherSuites = ciphers
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}
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tlsConfig.Certificates = make([]tls.Certificate, 1)
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certPEMBlock, err := os.ReadFile(certFile)
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if err != nil {
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log.Error("Failed to load https cert file %s for %s:%s: %v", certFile, network, listenAddr, err)
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return err
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}
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keyPEMBlock, err := os.ReadFile(keyFile)
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if err != nil {
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log.Error("Failed to load https key file %s for %s:%s: %v", keyFile, network, listenAddr, err)
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return err
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}
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tlsConfig.Certificates[0], err = tls.X509KeyPair(certPEMBlock, keyPEMBlock)
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if err != nil {
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log.Error("Failed to create certificate from cert file %s and key file %s for %s:%s: %v", certFile, keyFile, network, listenAddr, err)
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return err
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}
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return graceful.HTTPListenAndServeTLSConfig(network, listenAddr, name, tlsConfig, m, useProxyProtocol, proxyProtocolTLSBridging)
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}
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func runHTTPSWithTLSConfig(network, listenAddr, name string, tlsConfig *tls.Config, m http.Handler, useProxyProtocol, proxyProtocolTLSBridging bool) error {
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return graceful.HTTPListenAndServeTLSConfig(network, listenAddr, name, tlsConfig, m, useProxyProtocol, proxyProtocolTLSBridging)
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}
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