plugin

package
v0.0.0-...-0599406 Latest Latest
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 Go to latest Published: Sep 12, 2021 License: GPL-3.0 Imports: 42 Imported by: 0

Documentation

Index

Constants

View Source 
const (
	HelloWorldPluginInterfaceName = PluginInterfaceName("helloworld") // lower-case always
	SecurityPluginInterfaceName   = PluginInterfaceName("security")
	AccountPluginInterfaceName    = PluginInterfaceName("account")
)
View Source 
const DefaultPublicKeyFile = "Central.pgp.pk"

Variables

This section is empty.

Functions

func ReadMultiFormatConfig 

func ReadMultiFormatConfig(config interface{}) ([]byte, error)

Types

type CentralClient 

type CentralClient struct {
	// contains filtered or unexported fields
}

Central https centralClient communicating with Plugin Central

func NewPluginCentralClient 

func NewPluginCentralClient(config *PluginCentralConfiguration) *CentralClient

Create New Central Client

func (*CentralClient) PluginDistribution 

func (cc *CentralClient) PluginDistribution(definition *PluginDefinition, outFilePath string) error

retrieve plugin distribution file

func (*CentralClient) PluginSignature 

func (cc *CentralClient) PluginSignature(definition *PluginDefinition) ([]byte, error)

retrieve plugin signature

func (*CentralClient) PublicKey 

func (cc *CentralClient) PublicKey() ([]byte, error)

Get the public key from central

type Dialer 

type Dialer func(network, addr string) (net.Conn, error)

An adapter function for tls.Dial with CA verification & SSL Pinning support.

type Downloader 

type Downloader struct {
	// contains filtered or unexported fields
}

get plugin zip file from local or remote

func NewDownloader 

func NewDownloader(pm *PluginManager) *Downloader

func (*Downloader) Download 

func (d *Downloader) Download(definition *PluginDefinition) (string, error)

type EnvironmentAwaredValue 

type EnvironmentAwaredValue string

support URI format with 'env' scheme during JSON/TOML/TEXT unmarshalling e.g.: env://FOO_VAR means read a string value from FOO_VAR environment variable

func (EnvironmentAwaredValue) String 

func (d EnvironmentAwaredValue) String() string

func (*EnvironmentAwaredValue) UnmarshalJSON 

func (d *EnvironmentAwaredValue) UnmarshalJSON(data []byte) error

func (*EnvironmentAwaredValue) UnmarshalTOML 

func (d *EnvironmentAwaredValue) UnmarshalTOML(data []byte) error

func (*EnvironmentAwaredValue) UnmarshalText 

func (d *EnvironmentAwaredValue) UnmarshalText(data []byte) error

type HelloWorldPluginTemplate 

type HelloWorldPluginTemplate struct {
	// contains filtered or unexported fields
}

a template that returns the hello world plugin instance

func (HelloWorldPluginTemplate) Config 

func (bp HelloWorldPluginTemplate) Config() *PluginDefinition

func (*HelloWorldPluginTemplate) Get 

func (p *HelloWorldPluginTemplate) Get() (helloworld.PluginHelloWorld, error)

func (HelloWorldPluginTemplate) Info 

func (bp HelloWorldPluginTemplate) Info() (PluginInterfaceName, interface{})

func (HelloWorldPluginTemplate) Start 

func (bp HelloWorldPluginTemplate) Start() (err error)

func (HelloWorldPluginTemplate) Stop 

func (bp HelloWorldPluginTemplate) Stop() error

type LocalVerifier 

type LocalVerifier struct {
	PublicKeyPath    string // where to obtain PGP public key
	SignatureBaseDir string // where to obtain plugin signature file
}

Local Implementation of plugin.Verifier

func NewLocalVerifier 

func NewLocalVerifier(publicKeyPath string, pluginSignatureBaseDir string) (*LocalVerifier, error)

Build a new LocalVerifier

func (*LocalVerifier) VerifySignature 

func (v *LocalVerifier) VerifySignature(definition *PluginDefinition, checksum string) error

Verify a plugin giving its name from Central

type MetaData 

type MetaData struct {
	Version    string   `json:"version"`
	Os         string   `json:"os"`
	Arch       string   `json:"arch"`
	EntryPoint string   `json:"entrypoint"`
	Parameters []string `json:"parameters,omitempty"`
}

Plugin-meta.json

type NonVerifier 

type NonVerifier struct {
}

func NewNonVerifier 

func NewNonVerifier() *NonVerifier

func (*NonVerifier) VerifySignature 

func (*NonVerifier) VerifySignature(definition *PluginDefinition, checksum string) error

type OnlineVerifier 

type OnlineVerifier struct {
	// contains filtered or unexported fields
}

Implementation of plugin.Verifier that uses remote server to verify plugins.

func NewOnlineVerifier 

func NewOnlineVerifier(centralClient *CentralClient) *OnlineVerifier

func (*OnlineVerifier) VerifySignature 

func (v *OnlineVerifier) VerifySignature(definition *PluginDefinition, checksum string) error

Verify a plugin giving its name from Central

type PluginCentralConfiguration 

type PluginCentralConfiguration struct {
	// To implement certificate pinning while communicating with PluginCentral
	// if it's empty, we skip cert pinning logic
	CertFingerprint       string `json:"certFingerprint" toml:""`
	BaseURL               string `json:"baseURL" toml:""`
	PublicKeyURI          string `json:"publicKeyURI" toml:""`
	InsecureSkipTLSVerify bool   `json:"insecureSkipTLSVerify" toml:""`
}

type PluginDefinition 

type PluginDefinition struct {
	Name string `json:"name" toml:""`
	// the semver version of the plugin
	Version Version `json:"version" toml:""`
	// plugin configuration in a form of map/slice/string
	Config interface{} `json:"config,omitempty" toml:",omitempty"`
}

This is to describe a plugin

Information is used to discover the plugin binary and verify its integrity before forking a process running the plugin

func (*PluginDefinition) DistFileName 

func (m *PluginDefinition) DistFileName() string

return plugin distribution file name

func (*PluginDefinition) FullName 

func (m *PluginDefinition) FullName() string

return plugin name and version

func (*PluginDefinition) RemotePath 

func (m *PluginDefinition) RemotePath() string

return remote folder storing the plugin distribution file and signature file

e.g.: my-plugin/v1.0.0/darwin-amd64

func (*PluginDefinition) SignatureFileName 

func (m *PluginDefinition) SignatureFileName() string

return plugin distribution signature file name

type PluginInterfaceName 

type PluginInterfaceName string

must be always be lowercase when define constants as when unmarshaling from config, value will be case-lowered

func (PluginInterfaceName) String 

func (p PluginInterfaceName) String() string

func (*PluginInterfaceName) UnmarshalJSON 

func (p *PluginInterfaceName) UnmarshalJSON(data []byte) error

When this is used as a key in map. This function is not invoked.

func (*PluginInterfaceName) UnmarshalTOML 

func (p *PluginInterfaceName) UnmarshalTOML(data []byte) error

func (*PluginInterfaceName) UnmarshalText 

func (p *PluginInterfaceName) UnmarshalText(data []byte) error

type PluginManager 

type PluginManager struct {
	// contains filtered or unexported fields
}

this implements geth service

func NewEmptyPluginManager 

func NewEmptyPluginManager() *PluginManager

func NewPluginManager 

func NewPluginManager(nodeName string, settings *Settings, skipVerify bool, localVerify bool, publicKey string) (*PluginManager, error)

func (*PluginManager) APIs 

func (s *PluginManager) APIs() []rpc.API

this is called after PluginManager service has been successfully started See node/node.go#Start()

func (*PluginManager) AddAccountPluginToBackend 

func (s *PluginManager) AddAccountPluginToBackend(b *pluggable.Backend) error

AddAccountPluginToBackend adds the account plugin to the provided account backend

func (*PluginManager) GetPluginTemplate 

func (s *PluginManager) GetPluginTemplate(name PluginInterfaceName, v managedPlugin) error

store the plugin instance to the value of the pointer v and cache it this function makes sure v value will never be nil

func (*PluginManager) IsEnabled 

func (s *PluginManager) IsEnabled(name PluginInterfaceName) bool

Check if a plugin is enabled/setup

func (*PluginManager) PluginsInfo 

func (s *PluginManager) PluginsInfo() interface{}

Provide details of current plugins being used

func (*PluginManager) Protocols 

func (s *PluginManager) Protocols() []p2p.Protocol

func (*PluginManager) Reload 

func (s *PluginManager) Reload(name PluginInterfaceName) (bool, error)

func (*PluginManager) Start 

func (s *PluginManager) Start(_ *p2p.Server) (err error)

func (*PluginManager) Stop 

func (s *PluginManager) Stop() error

type PluginManagerAPI 

type PluginManagerAPI struct {
	// contains filtered or unexported fields
}

func NewPluginManagerAPI 

func NewPluginManagerAPI(pm *PluginManager) *PluginManagerAPI

func (*PluginManagerAPI) ReloadPlugin 

func (pmapi *PluginManagerAPI) ReloadPlugin(name PluginInterfaceName) (bool, error)

type ReloadableAccountServiceFactory 

type ReloadableAccountServiceFactory struct {
	// contains filtered or unexported fields
}

func (ReloadableAccountServiceFactory) Config 

func (bp ReloadableAccountServiceFactory) Config() *PluginDefinition

func (*ReloadableAccountServiceFactory) Create 

func (f *ReloadableAccountServiceFactory) Create() (account.Service, error)

func (ReloadableAccountServiceFactory) Info 

func (bp ReloadableAccountServiceFactory) Info() (PluginInterfaceName, interface{})

func (ReloadableAccountServiceFactory) Start 

func (bp ReloadableAccountServiceFactory) Start() (err error)

func (ReloadableAccountServiceFactory) Stop 

func (bp ReloadableAccountServiceFactory) Stop() error

type SecurityPluginTemplate 

type SecurityPluginTemplate struct {
	// contains filtered or unexported fields
}

func (*SecurityPluginTemplate) AuthenticationManager 

func (sp *SecurityPluginTemplate) AuthenticationManager() (security.AuthenticationManager, error)

AuthenticationManager returns an implementation of security.AuthenticationManager which could be a deferred implemenation or a disabled implementation.

The deferred implementation delegates to the actual implemenation (which is the plugin client).

The disabled implementation allows no authentication verification.

func (SecurityPluginTemplate) Config 

func (bp SecurityPluginTemplate) Config() *PluginDefinition

func (SecurityPluginTemplate) Info 

func (bp SecurityPluginTemplate) Info() (PluginInterfaceName, interface{})

func (SecurityPluginTemplate) Start 

func (bp SecurityPluginTemplate) Start() (err error)

func (SecurityPluginTemplate) Stop 

func (bp SecurityPluginTemplate) Stop() error

func (*SecurityPluginTemplate) TLSConfigurationSource 

func (sp *SecurityPluginTemplate) TLSConfigurationSource() (security.TLSConfigurationSource, error)

TLSConfigurationSource returns an implementation of security.TLSConfigurationSource which could be nil in case the plugin doesn't implement the corresponding service. In order to verify that, it attempts to make a call and inspect the error.

type Settings 

type Settings struct {
	BaseDir       EnvironmentAwaredValue                   `json:"baseDir" toml:""`
	CentralConfig *PluginCentralConfiguration              `json:"central" toml:"Central"`
	Providers     map[PluginInterfaceName]PluginDefinition `json:"providers" toml:""`
}

this defines plugins used in the geth node

func (*Settings) CheckSettingsAreSupported 

func (s *Settings) CheckSettingsAreSupported(supportedPlugins []PluginInterfaceName) error

CheckSettingsAreSupported validates Settings by ensuring that only supportedPlugins are defined. It is not required for all supportedPlugins to be defined. An error containing plugin details is returned if one or more unsupported plugins are defined.

func (*Settings) GetPluginDefinition 

func (s *Settings) GetPluginDefinition(name PluginInterfaceName) (*PluginDefinition, bool)

func (*Settings) SetDefaults 

func (s *Settings) SetDefaults()

type Verifier 

type Verifier interface {
	// verify plugin signature using checksum & pgp public key
	VerifySignature(definition *PluginDefinition, checksum string) error
}

Plugin Integrity Verifier. Verifier works on the assumption an attacker can not compromise the integrity of geth running process.

func NewVerifier 

func NewVerifier(pm *PluginManager, localVerify bool, publicKey string) (Verifier, error)

type Version 

type Version string

Source Files

View all Source files

Directories

Path Synopsis
internal/testutils
gen
proto_common
Package proto_common is a generated GoMock package.
 Package proto_common is a generated GoMock package.

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