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transport: ssh, mocked SSH server, fixes #332
Signed-off-by: Máximo Cuadros <mcuadros@gmail.com>
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Original file line number | Diff line number | Diff line change |
---|---|---|
@@ -1,47 +1,139 @@ | ||
package ssh | ||
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import ( | ||
"fmt" | ||
"io" | ||
"io/ioutil" | ||
"log" | ||
"net" | ||
"os" | ||
"os/exec" | ||
"path/filepath" | ||
"strings" | ||
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"gopkg.in/src-d/go-git.v4/plumbing/transport" | ||
"gopkg.in/src-d/go-git.v4/plumbing/transport/test" | ||
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"github.com/gliderlabs/ssh" | ||
"github.com/src-d/go-git-fixtures" | ||
stdssh "golang.org/x/crypto/ssh" | ||
. "gopkg.in/check.v1" | ||
) | ||
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type UploadPackSuite struct { | ||
test.UploadPackSuite | ||
fixtures.Suite | ||
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port int | ||
base string | ||
} | ||
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var _ = Suite(&UploadPackSuite{}) | ||
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func (s *UploadPackSuite) SetUpSuite(c *C) { | ||
s.setAuthBuilder(c) | ||
s.UploadPackSuite.Client = DefaultClient | ||
s.Suite.SetUpSuite(c) | ||
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l, err := net.Listen("tcp", "localhost:0") | ||
c.Assert(err, IsNil) | ||
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ep, err := transport.NewEndpoint("git@github.com:git-fixtures/basic.git") | ||
s.port = l.Addr().(*net.TCPAddr).Port | ||
s.base, err = ioutil.TempDir(os.TempDir(), fmt.Sprintf("go-git-ssh-%d", s.port)) | ||
c.Assert(err, IsNil) | ||
s.UploadPackSuite.Endpoint = ep | ||
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ep, err = transport.NewEndpoint("git@github.com:git-fixtures/empty.git") | ||
DefaultAuthBuilder = func(user string) (AuthMethod, error) { | ||
return &Password{User: user}, nil | ||
} | ||
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s.UploadPackSuite.Client = NewClient(&stdssh.ClientConfig{ | ||
HostKeyCallback: stdssh.InsecureIgnoreHostKey(), | ||
}) | ||
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s.UploadPackSuite.Endpoint = s.prepareRepository(c, fixtures.Basic().One(), "basic.git") | ||
s.UploadPackSuite.EmptyEndpoint = s.prepareRepository(c, fixtures.ByTag("empty").One(), "empty.git") | ||
s.UploadPackSuite.NonExistentEndpoint = s.newEndpoint(c, "non-existent.git") | ||
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server := &ssh.Server{Handler: handlerSSH} | ||
go func() { | ||
log.Fatal(server.Serve(l)) | ||
}() | ||
} | ||
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func (s *UploadPackSuite) prepareRepository(c *C, f *fixtures.Fixture, name string) transport.Endpoint { | ||
fs := f.DotGit() | ||
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err := fixtures.EnsureIsBare(fs) | ||
c.Assert(err, IsNil) | ||
s.UploadPackSuite.EmptyEndpoint = ep | ||
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ep, err = transport.NewEndpoint("git@github.com:git-fixtures/non-existent.git") | ||
path := filepath.Join(s.base, name) | ||
err = os.Rename(fs.Root(), path) | ||
c.Assert(err, IsNil) | ||
s.UploadPackSuite.NonExistentEndpoint = ep | ||
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return s.newEndpoint(c, name) | ||
} | ||
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func (s *UploadPackSuite) newEndpoint(c *C, name string) transport.Endpoint { | ||
ep, err := transport.NewEndpoint(fmt.Sprintf( | ||
"ssh://git@localhost:%d/%s/%s", s.port, filepath.ToSlash(s.base), name, | ||
)) | ||
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c.Assert(err, IsNil) | ||
return ep | ||
} | ||
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func (s *UploadPackSuite) setAuthBuilder(c *C) { | ||
privateKey := os.Getenv("SSH_TEST_PRIVATE_KEY") | ||
if privateKey != "" { | ||
DefaultAuthBuilder = func(user string) (AuthMethod, error) { | ||
return NewPublicKeysFromFile(user, privateKey, "") | ||
} | ||
func handlerSSH(s ssh.Session) { | ||
cmd, stdin, stderr, stdout, err := buildCommand(s.Command()) | ||
if err != nil { | ||
fmt.Println(err) | ||
return | ||
} | ||
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if privateKey == "" && os.Getenv("SSH_AUTH_SOCK") == "" { | ||
c.Skip("SSH_AUTH_SOCK or SSH_TEST_PRIVATE_KEY are required") | ||
if err := cmd.Start(); err != nil { | ||
fmt.Println(err) | ||
return | ||
} | ||
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go func() { | ||
defer stdin.Close() | ||
io.Copy(stdin, s) | ||
}() | ||
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go func() { | ||
defer stderr.Close() | ||
io.Copy(s.Stderr(), stderr) | ||
}() | ||
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defer stdout.Close() | ||
io.Copy(s, stdout) | ||
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if err := cmd.Wait(); err != nil { | ||
return | ||
} | ||
} | ||
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func buildCommand(c []string) (cmd *exec.Cmd, stdin io.WriteCloser, stderr, stdout io.ReadCloser, err error) { | ||
if len(c) != 2 { | ||
err = fmt.Errorf("invalid command") | ||
return | ||
} | ||
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// fix for Windows environments | ||
path := strings.Replace(c[1], "/C:/", "C:/", 1) | ||
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cmd = exec.Command(c[0], path) | ||
stdout, err = cmd.StdoutPipe() | ||
if err != nil { | ||
return | ||
} | ||
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stdin, err = cmd.StdinPipe() | ||
if err != nil { | ||
return | ||
} | ||
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stderr, err = cmd.StderrPipe() | ||
if err != nil { | ||
return | ||
} | ||
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return | ||
} |