sshutils

package
v0.0.18 Latest Latest
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 Go to latest Published: Oct 16, 2024 License: Apache-2.0 Imports: 23 Imported by: 0

Documentation

Index

Constants

View Source 
const (
	DefaultSSHPort    = 22
	DefaultRetryCount = 5
	DefaultRetryDelay = 10 * time.Second
)

Variables

View Source 
var (
	TimeInBetweenSSHRetries = 2 * time.Second
	SSHTimeOut              = 1 * time.Minute
	SSHRetryAttempts        = 5
	SSHRetryDelay           = 10 * time.Second
)
View Source 
var MockSSHKeyReader = func(path string) ([]byte, error) {

	isPublicKey := len(path) > 4 && path[len(path)-4:] == ".pub"

	if isPublicKey {
		return []byte(testdata.TestPublicSSHKeyMaterial), nil
	} else {
		return []byte(testdata.TestPrivateSSHKeyMaterial), nil
	}
}
View Source 
var NewSSHConfigFunc = NewSSHConfig
View Source 
var NullCallback = func(int64, int64) {}
View Source 
var SSHDialerFunc = NewSSHDial
View Source 
var SSHKeyReader = func(path string) ([]byte, error) {
	return os.ReadFile(path)
}

Functions

func ExportRsaPrivateKeyAsPemStr added in v0.0.9 

func ExportRsaPrivateKeyAsPemStr(privkey *rsa.PrivateKey) string

func ExportRsaPublicKeyAsPemStr added in v0.0.9 

func ExportRsaPublicKeyAsPemStr(pubkey *rsa.PublicKey) (string, error)

func ExtractSSHKeyPaths 

func ExtractSSHKeyPaths() (string, string, string, string, error)

func GenerateRsaKeyPair added in v0.0.9 

func GenerateRsaKeyPair() (*rsa.PrivateKey, *rsa.PublicKey)

func GetAggregateSSHTimeout 

func GetAggregateSSHTimeout() time.Duration

func GetHostKeyCallback 

func GetHostKeyCallback(host string) (ssh.HostKeyCallback, error)

func GetTypedMockClient 

func GetTypedMockClient(t *testing.T, log *logger.Logger) (*MockSSHClient, SSHConfiger)

func NewMockSSHClient 

func NewMockSSHClient(dialer SSHDialer) (*MockSSHClient, SSHConfiger)

func ParseRsaPrivateKeyFromPemStr added in v0.0.9 

func ParseRsaPrivateKeyFromPemStr(privPEM string) (*rsa.PrivateKey, error)

func ParseRsaPublicKeyFromPemStr added in v0.0.9 

func ParseRsaPublicKeyFromPemStr(pubPEM string) (*rsa.PublicKey, error)

func ReadPrivateKey 

func ReadPrivateKey(path string) ([]byte, error)

func ReadPublicKey 

func ReadPublicKey(path string) ([]byte, error)

func ValidateSSHKeysFromPath 

func ValidateSSHKeysFromPath(publicKeyPath, privateKeyPath string) error

GetSSHKeysFromPath reads and returns the public and private SSH keys from the specified path. If the path ends with ".pub", it is assumed to be the public key, and the corresponding private key is expected to be located at the same path without the ".pub" extension. The function uses SSHKeyReader to read the keys from the filesystem.

Parameters: - path: The filesystem path to the public key or the base path for both keys if the path does not end with ".pub".

Returns: - The public key as the first return value. - The private key as the second return value. - An error if either key could not be read, otherwise nil.

Note: The function assumes that the public and private keys are named identically with the only difference being the ".pub" extension for the public key.

func ValidateSSHPublicKey 

func ValidateSSHPublicKey(key string) error

ValidateSSHPublicKey checks if the provided SSH public key is valid

Types

type ExecuteCommandExpectation 

type ExecuteCommandExpectation struct {
	Cmd              string
	CmdMatcher       func(string) bool
	ProgressCallback interface{}
	Output           interface{}
	Error            error
	Times            int
}

type Expectation 

type Expectation struct {
	Error error
	Times int
}

type ExpectedSSHBehavior 

type ExpectedSSHBehavior struct {
	PushFileExpectations             []PushFileExpectation
	ExecuteCommandExpectations       []ExecuteCommandExpectation
	InstallSystemdServiceExpectation *Expectation
	RestartServiceExpectation        *Expectation
}

ExpectedSSHBehavior holds the expected outcomes for SSH methods

type MockSSHClient 

type MockSSHClient struct {
	mock.Mock
	Session SSHSessioner
	Dialer  SSHDialer
}

func (*MockSSHClient) Close 

func (m *MockSSHClient) Close() error

func (*MockSSHClient) IsConnected added in v0.0.18 

func (m *MockSSHClient) IsConnected() bool

func (*MockSSHClient) NewSession 

func (m *MockSSHClient) NewSession() (SSHSessioner, error)

func (*MockSSHClient) PushFile 

func (m *MockSSHClient) PushFile(
	ctx context.Context,
	remotePath string,
	content []byte,
	executable bool,
) error

type MockSSHConfig 

type MockSSHConfig struct {
	mock.Mock
	// contains filtered or unexported fields
}

MockSSHConfig is a mock implementation of SSHConfiger

func NewMockSSHConfigWithBehavior 

func NewMockSSHConfigWithBehavior(behavior ExpectedSSHBehavior) *MockSSHConfig

NewMockSSHConfigWithBehavior creates a mock SSHConfig based on the expected behavior

func (*MockSSHConfig) Close 

func (m *MockSSHConfig) Close() error

func (*MockSSHConfig) Connect 

func (m *MockSSHConfig) Connect() (SSHClienter, error)

func (*MockSSHConfig) ExecuteCommand 

func (m *MockSSHConfig) ExecuteCommand(
	ctx context.Context,
	cmd string,
) (string, error)

func (*MockSSHConfig) ExecuteCommandWithCallback 

func (m *MockSSHConfig) ExecuteCommandWithCallback(
	ctx context.Context,
	cmd string,
	progressCallback func(string),
) (string, error)

func (*MockSSHConfig) GetLastOutput 

func (m *MockSSHConfig) GetLastOutput() string

func (*MockSSHConfig) InstallSystemdService 

func (m *MockSSHConfig) InstallSystemdService(
	ctx context.Context,
	serviceName string,
	serviceContent string,
) error

func (*MockSSHConfig) PushFile 

func (m *MockSSHConfig) PushFile(
	ctx context.Context,
	dst string,
	fileContents []byte,
	executable bool,
) error

func (*MockSSHConfig) PushFileWithCallback 

func (m *MockSSHConfig) PushFileWithCallback(
	ctx context.Context,
	dst string,
	fileContents []byte,
	executable bool,
	progressCallback func(int64, int64),
) error

func (*MockSSHConfig) RestartService 

func (m *MockSSHConfig) RestartService(ctx context.Context, serviceName string) error

func (*MockSSHConfig) SetSSHClient 

func (m *MockSSHConfig) SetSSHClient(sshclient SSHClienter)

func (*MockSSHConfig) StartService 

func (m *MockSSHConfig) StartService(
	ctx context.Context,
	serviceName string,
) error

func (*MockSSHConfig) WaitForSSH 

func (m *MockSSHConfig) WaitForSSH(
	ctx context.Context,
	retries int,
	retryDelay time.Duration,
) error

type MockSSHDialer 

type MockSSHDialer struct {
	mock.Mock
}

MockSSHDialer is a mock implementation of SSHDialer

func NewMockSSHDialer 

func NewMockSSHDialer() *MockSSHDialer

NewMockSSHDialer returns a MockSSHDialer with a default implementation

func (*MockSSHDialer) Dial 

func (m *MockSSHDialer) Dial(network, addr string, config *ssh.ClientConfig) (SSHClienter, error)

Dial is a mock implementation of the Dial method

type MockSSHSession 

type MockSSHSession struct {
	mock.Mock
}

func NewMockSSHSession 

func NewMockSSHSession() *MockSSHSession

func (*MockSSHSession) Close 

func (m *MockSSHSession) Close() error

func (*MockSSHSession) CombinedOutput 

func (m *MockSSHSession) CombinedOutput(cmd string) ([]byte, error)

func (*MockSSHSession) Run 

func (m *MockSSHSession) Run(cmd string) error

func (*MockSSHSession) Start 

func (m *MockSSHSession) Start(cmd string) error

func (*MockSSHSession) StderrPipe 

func (m *MockSSHSession) StderrPipe() (io.Reader, error)

func (*MockSSHSession) StdinPipe 

func (m *MockSSHSession) StdinPipe() (io.WriteCloser, error)

func (*MockSSHSession) StdoutPipe 

func (m *MockSSHSession) StdoutPipe() (io.Reader, error)

func (*MockSSHSession) Wait 

func (m *MockSSHSession) Wait() error

type MockSessioner 

type MockSessioner interface {
	Run(cmd string) error
	CombinedOutput(cmd string) ([]byte, error)
	StdinPipe() (io.WriteCloser, error)
	Start(cmd string) error
	Close() error
	Wait() error
}

type MockWriteCloser 

type MockWriteCloser struct {
	mock.Mock
}

func (*MockWriteCloser) Close 

func (m *MockWriteCloser) Close() error

func (*MockWriteCloser) Write 

func (m *MockWriteCloser) Write(p []byte) (n int, err error)

type PushFileExpectation 

type PushFileExpectation struct {
	Dst              string
	FileContents     []byte
	Executable       bool
	ProgressCallback interface{}
	Error            error
	Times            int
}

type SFTPClienter 

type SFTPClienter interface {
	Create(path string) (io.WriteCloser, error)
	Open(path string) (io.ReadCloser, error)
	Close() error
}

SFTPClienter interface defines the methods we need for SFTP operations

type SFTPDialFunc 

type SFTPDialFunc func(conn *ssh.Client) (SFTPClienter, error)

SFTPDial is a function type for creating SFTP clients

type SSHClient 

type SSHClient struct {
	SSHClientConfig *ssh.ClientConfig
	Client          SSHClienter
	Dialer          SSHDialer
}

SSHClient struct definition

func (*SSHClient) Close 

func (cl *SSHClient) Close() error

func (*SSHClient) IsConnected added in v0.0.18 

func (cl *SSHClient) IsConnected() bool

func (*SSHClient) NewSession 

func (cl *SSHClient) NewSession() (SSHSessioner, error)

type SSHClientWrapper 

type SSHClientWrapper struct {
	*ssh.Client
}

func (*SSHClientWrapper) Close 

func (w *SSHClientWrapper) Close() error

func (*SSHClientWrapper) IsConnected added in v0.0.18 

func (w *SSHClientWrapper) IsConnected() bool

func (*SSHClientWrapper) NewSession 

func (w *SSHClientWrapper) NewSession() (SSHSessioner, error)

type SSHClienter 

type SSHClienter interface {
	NewSession() (SSHSessioner, error)
	IsConnected() bool
	Close() error
}

SSHClienter interface defines the methods we need for SSH operations

type SSHConfig 

type SSHConfig struct {
	Host               string
	Port               int
	User               string
	SSHPrivateKeyPath  string
	PrivateKeyMaterial []byte
	Timeout            time.Duration
	Logger             *logger.Logger

	SSHClient SSHClienter
	SSHDial   SSHDialer

	SSHPrivateKeyReader   func(path string) ([]byte, error)
	SSHPublicKeyReader    func(path string) ([]byte, error)
	ClientConfig          *ssh.ClientConfig
	InsecureIgnoreHostKey bool
}

func (*SSHConfig) Connect 

func (c *SSHConfig) Connect() (SSHClienter, error)

func (*SSHConfig) ExecuteCommand 

func (c *SSHConfig) ExecuteCommand(ctx context.Context, command string) (string, error)

func (*SSHConfig) ExecuteCommandWithCallback 

func (c *SSHConfig) ExecuteCommandWithCallback(ctx context.Context,
	command string,
	callback func(string)) (string, error)

ExecuteCommandWithCallback runs a command on the remote server over SSH. It takes the command as a string argument. It retries the execution a configurable number of times if it fails. It returns the output of the command as a string and any error encountered.

func (*SSHConfig) InstallSystemdService 

func (c *SSHConfig) InstallSystemdService(
	ctx context.Context,
	serviceName,
	serviceContent string,
) error

func (*SSHConfig) NewSession 

func (c *SSHConfig) NewSession() (SSHSessioner, error)

func (*SSHConfig) PushFile 

func (c *SSHConfig) PushFile(
	ctx context.Context,
	remotePath string,
	content []byte,
	executable bool,
) error

func (*SSHConfig) PushFileWithCallback 

func (c *SSHConfig) PushFileWithCallback(
	ctx context.Context,
	remotePath string,
	content []byte,
	executable bool,
	_ func(int64, int64),
) error

PushFile copies a local file to the remote server. It takes the local file path and the remote file path as arguments. The file is copied over an SSH session using the stdin pipe. It returns an error if any step of the process fails.

func (*SSHConfig) RestartService 

func (c *SSHConfig) RestartService(ctx context.Context, serviceName string) error

func (*SSHConfig) SetSSHClient 

func (c *SSHConfig) SetSSHClient(client SSHClienter)

func (*SSHConfig) StartService 

func (c *SSHConfig) StartService(ctx context.Context, serviceName string) error

func (*SSHConfig) WaitForSSH 

func (c *SSHConfig) WaitForSSH(ctx context.Context, retry int, timeout time.Duration) error

type SSHConfiger 

type SSHConfiger interface {
	SetSSHClient(client SSHClienter)
	Connect() (SSHClienter, error)
	WaitForSSH(ctx context.Context, retry int, timeout time.Duration) error
	ExecuteCommand(ctx context.Context, command string) (string, error)
	ExecuteCommandWithCallback(ctx context.Context,
		command string,
		callback func(string)) (string, error)
	PushFile(ctx context.Context, remotePath string, content []byte, executable bool) error
	PushFileWithCallback(ctx context.Context,
		remotePath string,
		content []byte,
		executable bool,
		callback func(int64, int64)) error
	InstallSystemdService(ctx context.Context, serviceName, serviceContent string) error
	StartService(ctx context.Context, serviceName string) error
	RestartService(ctx context.Context, serviceName string) error
}

func NewSSHConfig 

func NewSSHConfig(
	host string,
	port int,
	user string,
	sshPrivateKeyPath string,
) (SSHConfiger, error)

type SSHDial 

type SSHDial struct {
	DialCreator func(network, addr string, config *ssh.ClientConfig) (SSHClienter, error)
}

func (*SSHDial) Dial 

func (d *SSHDial) Dial(network, addr string, config *ssh.ClientConfig) (SSHClienter, error)

type SSHDialer 

type SSHDialer interface {
	Dial(network, addr string, config *ssh.ClientConfig) (SSHClienter, error)
}

func NewSSHDial 

func NewSSHDial(host string, port int, config *ssh.ClientConfig) SSHDialer

type SSHSessionWrapper 

type SSHSessionWrapper struct {
	Session *ssh.Session
}

func (*SSHSessionWrapper) Close 

func (s *SSHSessionWrapper) Close() error

func (*SSHSessionWrapper) CombinedOutput 

func (s *SSHSessionWrapper) CombinedOutput(cmd string) ([]byte, error)

func (*SSHSessionWrapper) Run 

func (s *SSHSessionWrapper) Run(cmd string) error

func (*SSHSessionWrapper) Signal 

func (s *SSHSessionWrapper) Signal(sig ssh.Signal) error

func (*SSHSessionWrapper) Start 

func (s *SSHSessionWrapper) Start(cmd string) error

func (*SSHSessionWrapper) StderrPipe 

func (s *SSHSessionWrapper) StderrPipe() (io.Reader, error)

func (*SSHSessionWrapper) StdinPipe 

func (s *SSHSessionWrapper) StdinPipe() (io.WriteCloser, error)

func (*SSHSessionWrapper) StdoutPipe 

func (s *SSHSessionWrapper) StdoutPipe() (io.Reader, error)

func (*SSHSessionWrapper) Wait 

func (s *SSHSessionWrapper) Wait() error

type SSHSessioner 

type SSHSessioner interface {
	Run(cmd string) error
	Start(cmd string) error
	Wait() error
	Close() error
	StdinPipe() (io.WriteCloser, error)
	StdoutPipe() (io.Reader, error)
	StderrPipe() (io.Reader, error)
	CombinedOutput(cmd string) ([]byte, error)
}

Source Files

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