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[mqtt] Implements mqtt publish tooling

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Cyrille Nofficial
2019-11-30 21:49:19 +01:00
parent 1b62903474
commit 17beea7e8a
921 changed files with 306092 additions and 0 deletions
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191
vendor/github.com/docker/go-connections/LICENSE generated vendored Normal file
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Apache License
Version 2.0, January 2004
https://www.apache.org/licenses/
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"License" shall mean the terms and conditions for use, reproduction,
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END OF TERMS AND CONDITIONS
Copyright 2015 Docker, Inc.
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
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Unless required by applicable law or agreed to in writing, software
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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.

242
vendor/github.com/docker/go-connections/nat/nat.go generated vendored Normal file
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// Package nat is a convenience package for manipulation of strings describing network ports.
package nat
import (
"fmt"
"net"
"strconv"
"strings"
)
const (
// portSpecTemplate is the expected format for port specifications
portSpecTemplate = "ip:hostPort:containerPort"
)
// PortBinding represents a binding between a Host IP address and a Host Port
type PortBinding struct {
// HostIP is the host IP Address
HostIP string `json:"HostIp"`
// HostPort is the host port number
HostPort string
}
// PortMap is a collection of PortBinding indexed by Port
type PortMap map[Port][]PortBinding
// PortSet is a collection of structs indexed by Port
type PortSet map[Port]struct{}
// Port is a string containing port number and protocol in the format "80/tcp"
type Port string
// NewPort creates a new instance of a Port given a protocol and port number or port range
func NewPort(proto, port string) (Port, error) {
// Check for parsing issues on "port" now so we can avoid having
// to check it later on.
portStartInt, portEndInt, err := ParsePortRangeToInt(port)
if err != nil {
return "", err
}
if portStartInt == portEndInt {
return Port(fmt.Sprintf("%d/%s", portStartInt, proto)), nil
}
return Port(fmt.Sprintf("%d-%d/%s", portStartInt, portEndInt, proto)), nil
}
// ParsePort parses the port number string and returns an int
func ParsePort(rawPort string) (int, error) {
if len(rawPort) == 0 {
return 0, nil
}
port, err := strconv.ParseUint(rawPort, 10, 16)
if err != nil {
return 0, err
}
return int(port), nil
}
// ParsePortRangeToInt parses the port range string and returns start/end ints
func ParsePortRangeToInt(rawPort string) (int, int, error) {
if len(rawPort) == 0 {
return 0, 0, nil
}
start, end, err := ParsePortRange(rawPort)
if err != nil {
return 0, 0, err
}
return int(start), int(end), nil
}
// Proto returns the protocol of a Port
func (p Port) Proto() string {
proto, _ := SplitProtoPort(string(p))
return proto
}
// Port returns the port number of a Port
func (p Port) Port() string {
_, port := SplitProtoPort(string(p))
return port
}
// Int returns the port number of a Port as an int
func (p Port) Int() int {
portStr := p.Port()
// We don't need to check for an error because we're going to
// assume that any error would have been found, and reported, in NewPort()
port, _ := ParsePort(portStr)
return port
}
// Range returns the start/end port numbers of a Port range as ints
func (p Port) Range() (int, int, error) {
return ParsePortRangeToInt(p.Port())
}
// SplitProtoPort splits a port in the format of proto/port
func SplitProtoPort(rawPort string) (string, string) {
parts := strings.Split(rawPort, "/")
l := len(parts)
if len(rawPort) == 0 || l == 0 || len(parts[0]) == 0 {
return "", ""
}
if l == 1 {
return "tcp", rawPort
}
if len(parts[1]) == 0 {
return "tcp", parts[0]
}
return parts[1], parts[0]
}
func validateProto(proto string) bool {
for _, availableProto := range []string{"tcp", "udp", "sctp"} {
if availableProto == proto {
return true
}
}
return false
}
// ParsePortSpecs receives port specs in the format of ip:public:private/proto and parses
// these in to the internal types
func ParsePortSpecs(ports []string) (map[Port]struct{}, map[Port][]PortBinding, error) {
var (
exposedPorts = make(map[Port]struct{}, len(ports))
bindings = make(map[Port][]PortBinding)
)
for _, rawPort := range ports {
portMappings, err := ParsePortSpec(rawPort)
if err != nil {
return nil, nil, err
}
for _, portMapping := range portMappings {
port := portMapping.Port
if _, exists := exposedPorts[port]; !exists {
exposedPorts[port] = struct{}{}
}
bslice, exists := bindings[port]
if !exists {
bslice = []PortBinding{}
}
bindings[port] = append(bslice, portMapping.Binding)
}
}
return exposedPorts, bindings, nil
}
// PortMapping is a data object mapping a Port to a PortBinding
type PortMapping struct {
Port Port
Binding PortBinding
}
func splitParts(rawport string) (string, string, string) {
parts := strings.Split(rawport, ":")
n := len(parts)
containerport := parts[n-1]
switch n {
case 1:
return "", "", containerport
case 2:
return "", parts[0], containerport
case 3:
return parts[0], parts[1], containerport
default:
return strings.Join(parts[:n-2], ":"), parts[n-2], containerport
}
}
// ParsePortSpec parses a port specification string into a slice of PortMappings
func ParsePortSpec(rawPort string) ([]PortMapping, error) {
var proto string
rawIP, hostPort, containerPort := splitParts(rawPort)
proto, containerPort = SplitProtoPort(containerPort)
// Strip [] from IPV6 addresses
ip, _, err := net.SplitHostPort(rawIP + ":")
if err != nil {
return nil, fmt.Errorf("Invalid ip address %v: %s", rawIP, err)
}
if ip != "" && net.ParseIP(ip) == nil {
return nil, fmt.Errorf("Invalid ip address: %s", ip)
}
if containerPort == "" {
return nil, fmt.Errorf("No port specified: %s<empty>", rawPort)
}
startPort, endPort, err := ParsePortRange(containerPort)
if err != nil {
return nil, fmt.Errorf("Invalid containerPort: %s", containerPort)
}
var startHostPort, endHostPort uint64 = 0, 0
if len(hostPort) > 0 {
startHostPort, endHostPort, err = ParsePortRange(hostPort)
if err != nil {
return nil, fmt.Errorf("Invalid hostPort: %s", hostPort)
}
}
if hostPort != "" && (endPort-startPort) != (endHostPort-startHostPort) {
// Allow host port range iff containerPort is not a range.
// In this case, use the host port range as the dynamic
// host port range to allocate into.
if endPort != startPort {
return nil, fmt.Errorf("Invalid ranges specified for container and host Ports: %s and %s", containerPort, hostPort)
}
}
if !validateProto(strings.ToLower(proto)) {
return nil, fmt.Errorf("Invalid proto: %s", proto)
}
ports := []PortMapping{}
for i := uint64(0); i <= (endPort - startPort); i++ {
containerPort = strconv.FormatUint(startPort+i, 10)
if len(hostPort) > 0 {
hostPort = strconv.FormatUint(startHostPort+i, 10)
}
// Set hostPort to a range only if there is a single container port
// and a dynamic host port.
if startPort == endPort && startHostPort != endHostPort {
hostPort = fmt.Sprintf("%s-%s", hostPort, strconv.FormatUint(endHostPort, 10))
}
port, err := NewPort(strings.ToLower(proto), containerPort)
if err != nil {
return nil, err
}
binding := PortBinding{
HostIP: ip,
HostPort: hostPort,
}
ports = append(ports, PortMapping{Port: port, Binding: binding})
}
return ports, nil
}

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vendor/github.com/docker/go-connections/nat/parse.go generated vendored Normal file
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package nat
import (
"fmt"
"strconv"
"strings"
)
// PartParser parses and validates the specified string (data) using the specified template
// e.g. ip:public:private -> 192.168.0.1:80:8000
// DEPRECATED: do not use, this function may be removed in a future version
func PartParser(template, data string) (map[string]string, error) {
// ip:public:private
var (
templateParts = strings.Split(template, ":")
parts = strings.Split(data, ":")
out = make(map[string]string, len(templateParts))
)
if len(parts) != len(templateParts) {
return nil, fmt.Errorf("Invalid format to parse. %s should match template %s", data, template)
}
for i, t := range templateParts {
value := ""
if len(parts) > i {
value = parts[i]
}
out[t] = value
}
return out, nil
}
// ParsePortRange parses and validates the specified string as a port-range (8000-9000)
func ParsePortRange(ports string) (uint64, uint64, error) {
if ports == "" {
return 0, 0, fmt.Errorf("Empty string specified for ports.")
}
if !strings.Contains(ports, "-") {
start, err := strconv.ParseUint(ports, 10, 16)
end := start
return start, end, err
}
parts := strings.Split(ports, "-")
start, err := strconv.ParseUint(parts[0], 10, 16)
if err != nil {
return 0, 0, err
}
end, err := strconv.ParseUint(parts[1], 10, 16)
if err != nil {
return 0, 0, err
}
if end < start {
return 0, 0, fmt.Errorf("Invalid range specified for the Port: %s", ports)
}
return start, end, nil
}

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vendor/github.com/docker/go-connections/nat/sort.go generated vendored Normal file
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package nat
import (
"sort"
"strings"
)
type portSorter struct {
ports []Port
by func(i, j Port) bool
}
func (s *portSorter) Len() int {
return len(s.ports)
}
func (s *portSorter) Swap(i, j int) {
s.ports[i], s.ports[j] = s.ports[j], s.ports[i]
}
func (s *portSorter) Less(i, j int) bool {
ip := s.ports[i]
jp := s.ports[j]
return s.by(ip, jp)
}
// Sort sorts a list of ports using the provided predicate
// This function should compare `i` and `j`, returning true if `i` is
// considered to be less than `j`
func Sort(ports []Port, predicate func(i, j Port) bool) {
s := &portSorter{ports, predicate}
sort.Sort(s)
}
type portMapEntry struct {
port Port
binding PortBinding
}
type portMapSorter []portMapEntry
func (s portMapSorter) Len() int { return len(s) }
func (s portMapSorter) Swap(i, j int) { s[i], s[j] = s[j], s[i] }
// sort the port so that the order is:
// 1. port with larger specified bindings
// 2. larger port
// 3. port with tcp protocol
func (s portMapSorter) Less(i, j int) bool {
pi, pj := s[i].port, s[j].port
hpi, hpj := toInt(s[i].binding.HostPort), toInt(s[j].binding.HostPort)
return hpi > hpj || pi.Int() > pj.Int() || (pi.Int() == pj.Int() && strings.ToLower(pi.Proto()) == "tcp")
}
// SortPortMap sorts the list of ports and their respected mapping. The ports
// will explicit HostPort will be placed first.
func SortPortMap(ports []Port, bindings PortMap) {
s := portMapSorter{}
for _, p := range ports {
if binding, ok := bindings[p]; ok {
for _, b := range binding {
s = append(s, portMapEntry{port: p, binding: b})
}
bindings[p] = []PortBinding{}
} else {
s = append(s, portMapEntry{port: p})
}
}
sort.Sort(s)
var (
i int
pm = make(map[Port]struct{})
)
// reorder ports
for _, entry := range s {
if _, ok := pm[entry.port]; !ok {
ports[i] = entry.port
pm[entry.port] = struct{}{}
i++
}
// reorder bindings for this port
if _, ok := bindings[entry.port]; ok {
bindings[entry.port] = append(bindings[entry.port], entry.binding)
}
}
}
func toInt(s string) uint64 {
i, _, err := ParsePortRange(s)
if err != nil {
i = 0
}
return i
}

0
vendor/github.com/docker/go-connections/sockets/README.md generated vendored Normal file
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81
vendor/github.com/docker/go-connections/sockets/inmem_socket.go generated vendored Normal file
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package sockets
import (
"errors"
"net"
"sync"
)
var errClosed = errors.New("use of closed network connection")
// InmemSocket implements net.Listener using in-memory only connections.
type InmemSocket struct {
chConn chan net.Conn
chClose chan struct{}
addr string
mu sync.Mutex
}
// dummyAddr is used to satisfy net.Addr for the in-mem socket
// it is just stored as a string and returns the string for all calls
type dummyAddr string
// NewInmemSocket creates an in-memory only net.Listener
// The addr argument can be any string, but is used to satisfy the `Addr()` part
// of the net.Listener interface
func NewInmemSocket(addr string, bufSize int) *InmemSocket {
return &InmemSocket{
chConn: make(chan net.Conn, bufSize),
chClose: make(chan struct{}),
addr: addr,
}
}
// Addr returns the socket's addr string to satisfy net.Listener
func (s *InmemSocket) Addr() net.Addr {
return dummyAddr(s.addr)
}
// Accept implements the Accept method in the Listener interface; it waits for the next call and returns a generic Conn.
func (s *InmemSocket) Accept() (net.Conn, error) {
select {
case conn := <-s.chConn:
return conn, nil
case <-s.chClose:
return nil, errClosed
}
}
// Close closes the listener. It will be unavailable for use once closed.
func (s *InmemSocket) Close() error {
s.mu.Lock()
defer s.mu.Unlock()
select {
case <-s.chClose:
default:
close(s.chClose)
}
return nil
}
// Dial is used to establish a connection with the in-mem server
func (s *InmemSocket) Dial(network, addr string) (net.Conn, error) {
srvConn, clientConn := net.Pipe()
select {
case s.chConn <- srvConn:
case <-s.chClose:
return nil, errClosed
}
return clientConn, nil
}
// Network returns the addr string, satisfies net.Addr
func (a dummyAddr) Network() string {
return string(a)
}
// String returns the string form
func (a dummyAddr) String() string {
return string(a)
}

51
vendor/github.com/docker/go-connections/sockets/proxy.go generated vendored Normal file
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package sockets
import (
"net"
"net/url"
"os"
"strings"
"golang.org/x/net/proxy"
)
// GetProxyEnv allows access to the uppercase and the lowercase forms of
// proxy-related variables. See the Go specification for details on these
// variables. https://golang.org/pkg/net/http/
func GetProxyEnv(key string) string {
proxyValue := os.Getenv(strings.ToUpper(key))
if proxyValue == "" {
return os.Getenv(strings.ToLower(key))
}
return proxyValue
}
// DialerFromEnvironment takes in a "direct" *net.Dialer and returns a
// proxy.Dialer which will route the connections through the proxy using the
// given dialer.
func DialerFromEnvironment(direct *net.Dialer) (proxy.Dialer, error) {
allProxy := GetProxyEnv("all_proxy")
if len(allProxy) == 0 {
return direct, nil
}
proxyURL, err := url.Parse(allProxy)
if err != nil {
return direct, err
}
proxyFromURL, err := proxy.FromURL(proxyURL, direct)
if err != nil {
return direct, err
}
noProxy := GetProxyEnv("no_proxy")
if len(noProxy) == 0 {
return proxyFromURL, nil
}
perHost := proxy.NewPerHost(proxyFromURL, direct)
perHost.AddFromString(noProxy)
return perHost, nil
}

38
vendor/github.com/docker/go-connections/sockets/sockets.go generated vendored Normal file
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// Package sockets provides helper functions to create and configure Unix or TCP sockets.
package sockets
import (
"errors"
"net"
"net/http"
"time"
)
// Why 32? See https://github.com/docker/docker/pull/8035.
const defaultTimeout = 32 * time.Second
// ErrProtocolNotAvailable is returned when a given transport protocol is not provided by the operating system.
var ErrProtocolNotAvailable = errors.New("protocol not available")
// ConfigureTransport configures the specified Transport according to the
// specified proto and addr.
// If the proto is unix (using a unix socket to communicate) or npipe the
// compression is disabled.
func ConfigureTransport(tr *http.Transport, proto, addr string) error {
switch proto {
case "unix":
return configureUnixTransport(tr, proto, addr)
case "npipe":
return configureNpipeTransport(tr, proto, addr)
default:
tr.Proxy = http.ProxyFromEnvironment
dialer, err := DialerFromEnvironment(&net.Dialer{
Timeout: defaultTimeout,
})
if err != nil {
return err
}
tr.Dial = dialer.Dial
}
return nil
}

35
vendor/github.com/docker/go-connections/sockets/sockets_unix.go generated vendored Normal file
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// +build !windows
package sockets
import (
"fmt"
"net"
"net/http"
"syscall"
"time"
)
const maxUnixSocketPathSize = len(syscall.RawSockaddrUnix{}.Path)
func configureUnixTransport(tr *http.Transport, proto, addr string) error {
if len(addr) > maxUnixSocketPathSize {
return fmt.Errorf("Unix socket path %q is too long", addr)
}
// No need for compression in local communications.
tr.DisableCompression = true
tr.Dial = func(_, _ string) (net.Conn, error) {
return net.DialTimeout(proto, addr, defaultTimeout)
}
return nil
}
func configureNpipeTransport(tr *http.Transport, proto, addr string) error {
return ErrProtocolNotAvailable
}
// DialPipe connects to a Windows named pipe.
// This is not supported on other OSes.
func DialPipe(_ string, _ time.Duration) (net.Conn, error) {
return nil, syscall.EAFNOSUPPORT
}

27
vendor/github.com/docker/go-connections/sockets/sockets_windows.go generated vendored Normal file
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package sockets
import (
"net"
"net/http"
"time"
"github.com/Microsoft/go-winio"
)
func configureUnixTransport(tr *http.Transport, proto, addr string) error {
return ErrProtocolNotAvailable
}
func configureNpipeTransport(tr *http.Transport, proto, addr string) error {
// No need for compression in local communications.
tr.DisableCompression = true
tr.Dial = func(_, _ string) (net.Conn, error) {
return DialPipe(addr, defaultTimeout)
}
return nil
}
// DialPipe connects to a Windows named pipe.
func DialPipe(addr string, timeout time.Duration) (net.Conn, error) {
return winio.DialPipe(addr, &timeout)
}

22
vendor/github.com/docker/go-connections/sockets/tcp_socket.go generated vendored Normal file
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// Package sockets provides helper functions to create and configure Unix or TCP sockets.
package sockets
import (
"crypto/tls"
"net"
)
// NewTCPSocket creates a TCP socket listener with the specified address and
// the specified tls configuration. If TLSConfig is set, will encapsulate the
// TCP listener inside a TLS one.
func NewTCPSocket(addr string, tlsConfig *tls.Config) (net.Listener, error) {
l, err := net.Listen("tcp", addr)
if err != nil {
return nil, err
}
if tlsConfig != nil {
tlsConfig.NextProtos = []string{"http/1.1"}
l = tls.NewListener(l, tlsConfig)
}
return l, nil
}

32
vendor/github.com/docker/go-connections/sockets/unix_socket.go generated vendored Normal file
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// +build !windows
package sockets
import (
"net"
"os"
"syscall"
)
// NewUnixSocket creates a unix socket with the specified path and group.
func NewUnixSocket(path string, gid int) (net.Listener, error) {
if err := syscall.Unlink(path); err != nil && !os.IsNotExist(err) {
return nil, err
}
mask := syscall.Umask(0777)
defer syscall.Umask(mask)
l, err := net.Listen("unix", path)
if err != nil {
return nil, err
}
if err := os.Chown(path, 0, gid); err != nil {
l.Close()
return nil, err
}
if err := os.Chmod(path, 0660); err != nil {
l.Close()
return nil, err
}
return l, nil
}

18
vendor/github.com/docker/go-connections/tlsconfig/certpool_go17.go generated vendored Normal file
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// +build go1.7
package tlsconfig
import (
"crypto/x509"
"runtime"
)
// SystemCertPool returns a copy of the system cert pool,
// returns an error if failed to load or empty pool on windows.
func SystemCertPool() (*x509.CertPool, error) {
certpool, err := x509.SystemCertPool()
if err != nil && runtime.GOOS == "windows" {
return x509.NewCertPool(), nil
}
return certpool, err
}

13
vendor/github.com/docker/go-connections/tlsconfig/certpool_other.go generated vendored Normal file
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// +build !go1.7
package tlsconfig
import (
"crypto/x509"
)
// SystemCertPool returns an new empty cert pool,
// accessing system cert pool is supported in go 1.7
func SystemCertPool() (*x509.CertPool, error) {
return x509.NewCertPool(), nil
}

254
vendor/github.com/docker/go-connections/tlsconfig/config.go generated vendored Normal file
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// Package tlsconfig provides primitives to retrieve secure-enough TLS configurations for both clients and servers.
//
// As a reminder from https://golang.org/pkg/crypto/tls/#Config:
// A Config structure is used to configure a TLS client or server. After one has been passed to a TLS function it must not be modified.
// A Config may be reused; the tls package will also not modify it.
package tlsconfig
import (
"crypto/tls"
"crypto/x509"
"encoding/pem"
"fmt"
"io/ioutil"
"os"
"github.com/pkg/errors"
)
// Options represents the information needed to create client and server TLS configurations.
type Options struct {
CAFile string
// If either CertFile or KeyFile is empty, Client() will not load them
// preventing the client from authenticating to the server.
// However, Server() requires them and will error out if they are empty.
CertFile string
KeyFile string
// client-only option
InsecureSkipVerify bool
// server-only option
ClientAuth tls.ClientAuthType
// If ExclusiveRootPools is set, then if a CA file is provided, the root pool used for TLS
// creds will include exclusively the roots in that CA file. If no CA file is provided,
// the system pool will be used.
ExclusiveRootPools bool
MinVersion uint16
// If Passphrase is set, it will be used to decrypt a TLS private key
// if the key is encrypted
Passphrase string
}
// Extra (server-side) accepted CBC cipher suites - will phase out in the future
var acceptedCBCCiphers = []uint16{
tls.TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA,
tls.TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA,
tls.TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA,
tls.TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA,
}
// DefaultServerAcceptedCiphers should be uses by code which already has a crypto/tls
// options struct but wants to use a commonly accepted set of TLS cipher suites, with
// known weak algorithms removed.
var DefaultServerAcceptedCiphers = append(clientCipherSuites, acceptedCBCCiphers...)
// allTLSVersions lists all the TLS versions and is used by the code that validates
// a uint16 value as a TLS version.
var allTLSVersions = map[uint16]struct{}{
tls.VersionSSL30: {},
tls.VersionTLS10: {},
tls.VersionTLS11: {},
tls.VersionTLS12: {},
}
// ServerDefault returns a secure-enough TLS configuration for the server TLS configuration.
func ServerDefault(ops ...func(*tls.Config)) *tls.Config {
tlsconfig := &tls.Config{
// Avoid fallback by default to SSL protocols < TLS1.2
MinVersion: tls.VersionTLS12,
PreferServerCipherSuites: true,
CipherSuites: DefaultServerAcceptedCiphers,
}
for _, op := range ops {
op(tlsconfig)
}
return tlsconfig
}
// ClientDefault returns a secure-enough TLS configuration for the client TLS configuration.
func ClientDefault(ops ...func(*tls.Config)) *tls.Config {
tlsconfig := &tls.Config{
// Prefer TLS1.2 as the client minimum
MinVersion: tls.VersionTLS12,
CipherSuites: clientCipherSuites,
}
for _, op := range ops {
op(tlsconfig)
}
return tlsconfig
}
// certPool returns an X.509 certificate pool from `caFile`, the certificate file.
func certPool(caFile string, exclusivePool bool) (*x509.CertPool, error) {
// If we should verify the server, we need to load a trusted ca
var (
certPool *x509.CertPool
err error
)
if exclusivePool {
certPool = x509.NewCertPool()
} else {
certPool, err = SystemCertPool()
if err != nil {
return nil, fmt.Errorf("failed to read system certificates: %v", err)
}
}
pem, err := ioutil.ReadFile(caFile)
if err != nil {
return nil, fmt.Errorf("could not read CA certificate %q: %v", caFile, err)
}
if !certPool.AppendCertsFromPEM(pem) {
return nil, fmt.Errorf("failed to append certificates from PEM file: %q", caFile)
}
return certPool, nil
}
// isValidMinVersion checks that the input value is a valid tls minimum version
func isValidMinVersion(version uint16) bool {
_, ok := allTLSVersions[version]
return ok
}
// adjustMinVersion sets the MinVersion on `config`, the input configuration.
// It assumes the current MinVersion on the `config` is the lowest allowed.
func adjustMinVersion(options Options, config *tls.Config) error {
if options.MinVersion > 0 {
if !isValidMinVersion(options.MinVersion) {
return fmt.Errorf("Invalid minimum TLS version: %x", options.MinVersion)
}
if options.MinVersion < config.MinVersion {
return fmt.Errorf("Requested minimum TLS version is too low. Should be at-least: %x", config.MinVersion)
}
config.MinVersion = options.MinVersion
}
return nil
}
// IsErrEncryptedKey returns true if the 'err' is an error of incorrect
// password when tryin to decrypt a TLS private key
func IsErrEncryptedKey(err error) bool {
return errors.Cause(err) == x509.IncorrectPasswordError
}
// getPrivateKey returns the private key in 'keyBytes', in PEM-encoded format.
// If the private key is encrypted, 'passphrase' is used to decrypted the
// private key.
func getPrivateKey(keyBytes []byte, passphrase string) ([]byte, error) {
// this section makes some small changes to code from notary/tuf/utils/x509.go
pemBlock, _ := pem.Decode(keyBytes)
if pemBlock == nil {
return nil, fmt.Errorf("no valid private key found")
}
var err error
if x509.IsEncryptedPEMBlock(pemBlock) {
keyBytes, err = x509.DecryptPEMBlock(pemBlock, []byte(passphrase))
if err != nil {
return nil, errors.Wrap(err, "private key is encrypted, but could not decrypt it")
}
keyBytes = pem.EncodeToMemory(&pem.Block{Type: pemBlock.Type, Bytes: keyBytes})
}
return keyBytes, nil
}
// getCert returns a Certificate from the CertFile and KeyFile in 'options',
// if the key is encrypted, the Passphrase in 'options' will be used to
// decrypt it.
func getCert(options Options) ([]tls.Certificate, error) {
if options.CertFile == "" && options.KeyFile == "" {
return nil, nil
}
errMessage := "Could not load X509 key pair"
cert, err := ioutil.ReadFile(options.CertFile)
if err != nil {
return nil, errors.Wrap(err, errMessage)
}
prKeyBytes, err := ioutil.ReadFile(options.KeyFile)
if err != nil {
return nil, errors.Wrap(err, errMessage)
}
prKeyBytes, err = getPrivateKey(prKeyBytes, options.Passphrase)
if err != nil {
return nil, errors.Wrap(err, errMessage)
}
tlsCert, err := tls.X509KeyPair(cert, prKeyBytes)
if err != nil {
return nil, errors.Wrap(err, errMessage)
}
return []tls.Certificate{tlsCert}, nil
}
// Client returns a TLS configuration meant to be used by a client.
func Client(options Options) (*tls.Config, error) {
tlsConfig := ClientDefault()
tlsConfig.InsecureSkipVerify = options.InsecureSkipVerify
if !options.InsecureSkipVerify && options.CAFile != "" {
CAs, err := certPool(options.CAFile, options.ExclusiveRootPools)
if err != nil {
return nil, err
}
tlsConfig.RootCAs = CAs
}
tlsCerts, err := getCert(options)
if err != nil {
return nil, err
}
tlsConfig.Certificates = tlsCerts
if err := adjustMinVersion(options, tlsConfig); err != nil {
return nil, err
}
return tlsConfig, nil
}
// Server returns a TLS configuration meant to be used by a server.
func Server(options Options) (*tls.Config, error) {
tlsConfig := ServerDefault()
tlsConfig.ClientAuth = options.ClientAuth
tlsCert, err := tls.LoadX509KeyPair(options.CertFile, options.KeyFile)
if err != nil {
if os.IsNotExist(err) {
return nil, fmt.Errorf("Could not load X509 key pair (cert: %q, key: %q): %v", options.CertFile, options.KeyFile, err)
}
return nil, fmt.Errorf("Error reading X509 key pair (cert: %q, key: %q): %v. Make sure the key is not encrypted.", options.CertFile, options.KeyFile, err)
}
tlsConfig.Certificates = []tls.Certificate{tlsCert}
if options.ClientAuth >= tls.VerifyClientCertIfGiven && options.CAFile != "" {
CAs, err := certPool(options.CAFile, options.ExclusiveRootPools)
if err != nil {
return nil, err
}
tlsConfig.ClientCAs = CAs
}
if err := adjustMinVersion(options, tlsConfig); err != nil {
return nil, err
}
return tlsConfig, nil
}

17
vendor/github.com/docker/go-connections/tlsconfig/config_client_ciphers.go generated vendored Normal file
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// +build go1.5
// Package tlsconfig provides primitives to retrieve secure-enough TLS configurations for both clients and servers.
//
package tlsconfig
import (
"crypto/tls"
)
// Client TLS cipher suites (dropping CBC ciphers for client preferred suite set)
var clientCipherSuites = []uint16{
tls.TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384,
tls.TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384,
tls.TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256,
tls.TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256,
}

15
vendor/github.com/docker/go-connections/tlsconfig/config_legacy_client_ciphers.go generated vendored Normal file
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// +build !go1.5
// Package tlsconfig provides primitives to retrieve secure-enough TLS configurations for both clients and servers.
//
package tlsconfig
import (
"crypto/tls"
)
// Client TLS cipher suites (dropping CBC ciphers for client preferred suite set)
var clientCipherSuites = []uint16{
tls.TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256,
tls.TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256,
}