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authorMáximo Cuadros <mcuadros@gmail.com>2017-12-11 13:02:02 +0100
committerMáximo Cuadros <mcuadros@gmail.com>2017-12-11 13:02:02 +0100
commit264d094d8dce590d00fba1683cb7c74ff0c01a74 (patch)
tree302e69a5a63fb0e0dcb38c37952ccc6c996855fd /plumbing/transport/ssh
parent479d38ba02f553550c6cd2b7133a1a140a361080 (diff)
downloadgo-git-264d094d8dce590d00fba1683cb7c74ff0c01a74.tar.gz
plumbing: transport ssh, ssh_config implementation
Signed-off-by: Máximo Cuadros <mcuadros@gmail.com>
Diffstat (limited to 'plumbing/transport/ssh')
-rw-r--r--plumbing/transport/ssh/common.go52
-rw-r--r--plumbing/transport/ssh/common_test.go67
2 files changed, 107 insertions, 12 deletions
diff --git a/plumbing/transport/ssh/common.go b/plumbing/transport/ssh/common.go
index 872379a..e4a3d18 100644
--- a/plumbing/transport/ssh/common.go
+++ b/plumbing/transport/ssh/common.go
@@ -9,13 +9,21 @@ import (
"gopkg.in/src-d/go-git.v4/plumbing/transport"
"gopkg.in/src-d/go-git.v4/plumbing/transport/internal/common"
- "golang.org/x/crypto/ssh"
"github.com/kevinburke/ssh_config"
+ "golang.org/x/crypto/ssh"
)
// DefaultClient is the default SSH client.
var DefaultClient = NewClient(nil)
+// DefaultSSHConfig is the reader used to access parameters stored in the
+// system's ssh_config files. If nil all the ssh_config are ignored.
+var DefaultSSHConfig sshConfig = ssh_config.DefaultUserSettings
+
+type sshConfig interface {
+ Get(alias, key string) string
+}
+
// NewClient creates a new SSH client with an optional *ssh.ClientConfig.
func NewClient(config *ssh.ClientConfig) transport.Transport {
return common.NewClient(&runner{config: config})
@@ -123,26 +131,46 @@ func (c *command) connect() error {
}
func (c *command) getHostWithPort() string {
+ if addr, found := c.doGetHostWithPortFromSSHConfig(); found {
+ return addr
+ }
+
host := c.endpoint.Host
+ port := c.endpoint.Port
+ if port <= 0 {
+ port = DefaultPort
+ }
- configHost := ssh_config.Get(host, "Hostname")
- if (configHost != "") {
- host = configHost
+ return fmt.Sprintf("%s:%d", host, port)
+}
+
+func (c *command) doGetHostWithPortFromSSHConfig() (addr string, found bool) {
+ if DefaultSSHConfig == nil {
+ return
}
+ host := c.endpoint.Host
port := c.endpoint.Port
- configPort := ssh_config.Get(host, "Port")
- if (configPort != "") {
- i, err := strconv.Atoi(configPort)
- if err != nil {
+
+ configHost := DefaultSSHConfig.Get(c.endpoint.Host, "Hostname")
+ if configHost != "" {
+ host = configHost
+ found = true
+ }
+
+ if !found {
+ return
+ }
+
+ configPort := DefaultSSHConfig.Get(c.endpoint.Host, "Port")
+ if configPort != "" {
+ if i, err := strconv.Atoi(configPort); err == nil {
port = i
}
}
- if port <= 0 {
- port = DefaultPort
- }
- return fmt.Sprintf("%s:%d", host, port)
+ addr = fmt.Sprintf("%s:%d", host, port)
+ return
}
func (c *command) setAuthFromEndpoint() error {
diff --git a/plumbing/transport/ssh/common_test.go b/plumbing/transport/ssh/common_test.go
index 5315e28..faa0503 100644
--- a/plumbing/transport/ssh/common_test.go
+++ b/plumbing/transport/ssh/common_test.go
@@ -3,9 +3,12 @@ package ssh
import (
"testing"
+ "github.com/kevinburke/ssh_config"
+
"golang.org/x/crypto/ssh"
. "gopkg.in/check.v1"
+ "gopkg.in/src-d/go-git.v4/plumbing/transport"
)
func Test(t *testing.T) { TestingT(t) }
@@ -39,3 +42,67 @@ func (s *SuiteCommon) TestOverrideConfigKeep(c *C) {
overrideConfig(config, target)
c.Assert(target.User, Equals, "foo")
}
+
+func (s *SuiteCommon) TestDefaultSSHConfig(c *C) {
+ defer func() {
+ DefaultSSHConfig = ssh_config.DefaultUserSettings
+ }()
+
+ DefaultSSHConfig = &mockSSHConfig{map[string]map[string]string{
+ "github.com": map[string]string{
+ "Hostname": "foo.local",
+ "Port": "42",
+ },
+ }}
+
+ ep, err := transport.NewEndpoint("git@github.com:foo/bar.git")
+ c.Assert(err, IsNil)
+
+ cmd := &command{endpoint: ep}
+ c.Assert(cmd.getHostWithPort(), Equals, "foo.local:42")
+}
+
+func (s *SuiteCommon) TestDefaultSSHConfigNil(c *C) {
+ defer func() {
+ DefaultSSHConfig = ssh_config.DefaultUserSettings
+ }()
+
+ DefaultSSHConfig = nil
+
+ ep, err := transport.NewEndpoint("git@github.com:foo/bar.git")
+ c.Assert(err, IsNil)
+
+ cmd := &command{endpoint: ep}
+ c.Assert(cmd.getHostWithPort(), Equals, "github.com:22")
+}
+
+func (s *SuiteCommon) TestDefaultSSHConfigWildcard(c *C) {
+ defer func() {
+ DefaultSSHConfig = ssh_config.DefaultUserSettings
+ }()
+
+ DefaultSSHConfig = &mockSSHConfig{Values: map[string]map[string]string{
+ "*": map[string]string{
+ "Port": "42",
+ },
+ }}
+
+ ep, err := transport.NewEndpoint("git@github.com:foo/bar.git")
+ c.Assert(err, IsNil)
+
+ cmd := &command{endpoint: ep}
+ c.Assert(cmd.getHostWithPort(), Equals, "github.com:22")
+}
+
+type mockSSHConfig struct {
+ Values map[string]map[string]string
+}
+
+func (c *mockSSHConfig) Get(alias, key string) string {
+ a, ok := c.Values[alias]
+ if !ok {
+ return c.Values["*"][key]
+ }
+
+ return a[key]
+}