plugin

package
v0.12.0-beta.1 Latest Latest
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 Go to latest Published: Nov 2, 2022 License: Apache-2.0 Imports: 6 Imported by: 6

Documentation

Index

Constants

View Source 
const (
	RSA_2048 = "RSA-2048"
	RSA_3072 = "RSA-3072"
	RSA_4096 = "RSA-4096"
	EC_256   = "EC-256"
	EC_384   = "EC-384"
	EC_521   = "EC-521"
)

one of the following supported key spec names.

https://github.com/notaryproject/notaryproject/blob/main/signature-specification.md#algorithm-selection

View Source 
const (
	SHA_256 = "SHA-256"
	SHA_384 = "SHA-384"
	SHA_512 = "SHA-512"
)

one of the following supported hash algorithm names.

https://github.com/notaryproject/notaryproject/blob/main/signature-specification.md#algorithm-selection

View Source 
const (
	ECDSA_SHA_256      = "ECDSA-SHA-256"
	ECDSA_SHA_384      = "ECDSA-SHA-384"
	ECDSA_SHA_512      = "ECDSA-SHA-512"
	RSASSA_PSS_SHA_256 = "RSASSA-PSS-SHA-256"
	RSASSA_PSS_SHA_384 = "RSASSA-PSS-SHA-384"
	RSASSA_PSS_SHA_512 = "RSASSA-PSS-SHA-512"
)

one of the following supported signing algorithm names.

https://github.com/notaryproject/notaryproject/blob/main/signature-specification.md#algorithm-selection

View Source 
const (
	// CapabilitySignatureGenerator is the name of the capability
	// for a plugin to support generating raw signatures.
	CapabilitySignatureGenerator Capability = "SIGNATURE_GENERATOR.RAW"

	// CapabilityEnvelopeGenerator is the name of the capability
	// for a plugin to support generating envelope signatures.
	CapabilityEnvelopeGenerator Capability = "SIGNATURE_GENERATOR.ENVELOPE"

	// CapabilityTrustedIdentityVerifier is the name of the capability
	// for a plugin to support verifying trusted identities.
	CapabilityTrustedIdentityVerifier = Capability(VerificationCapabilityTrustedIdentity)

	// CapabilityRevocationCheckVerifier is the name of the capability
	// for a plugin to support verifying revocation checks.
	CapabilityRevocationCheckVerifier = Capability(VerificationCapabilityRevocationCheck)
)
View Source 
const ContractVersion = "1.0"

ContractVersion is the <major>.<minor> version of the plugin contract.

View Source 
const Prefix = "notation-"

Prefix is the prefix required on all plugin binary names.

Variables

This section is empty.

Functions

func KeySpecHashString 

func KeySpecHashString(k signature.KeySpec) string

KeySpecHashName returns the name of hash function according to the spec.

func KeySpecString 

func KeySpecString(k signature.KeySpec) string

KeySpecName returns the name of a keySpec according to the spec.

func ParseKeySpec 

func ParseKeySpec(raw string) (keySpec signature.KeySpec, err error)

ParseKeySpecFromName parses keySpec name to a signature.keySpec type.

func ParseSigningAlgorithm 

func ParseSigningAlgorithm(raw string) (signature.Algorithm, error)

ParseSigningAlgorithFromName parses the signing algorithm name from a given string.

func SigningAlgorithmString 

func SigningAlgorithmString(alg signature.Algorithm) string

SigningAlgorithmName returns the signing algorithm name of an algorithm according to the spec.

Types

type Capability 

type Capability string

Capability is a feature available in the plugin contract.

func (Capability) In 

func (c Capability) In(capabilities []Capability) bool

In returns true if the Capability is present in the given array of capabilities

type Command 

type Command string

Command is a CLI command available in the plugin contract. 

const (
	// CommandGetMetadata is the name of the plugin command
	// which must be supported by every plugin and returns the
	// plugin metadata.
	CommandGetMetadata Command = "get-plugin-metadata"

	// CommandDescribeKey is the name of the plugin command
	// which must be supported by every plugin that has the
	// SIGNATURE_GENERATOR.RAW capability.
	CommandDescribeKey Command = "describe-key"

	// CommandGenerateSignature is the name of the plugin command
	// which must be supported by every plugin that has the
	// SIGNATURE_GENERATOR.RAW capability.
	CommandGenerateSignature Command = "generate-signature"

	// CommandGenerateEnvelope is the name of the plugin command
	// which must be supported by every plugin that has the
	// SIGNATURE_GENERATOR.ENVELOPE capability.
	CommandGenerateEnvelope Command = "generate-envelope"

	// CommandVerifySignature is the name of the plugin command
	// which must be supported by every plugin that has
	// any SIGNATURE_VERIFIER.* capability
	CommandVerifySignature Command = "verify-signature"
)

type CriticalAttributes 

type CriticalAttributes struct {
	ContentType          string                      `json:"contentType"`
	SigningScheme        string                      `json:"signingScheme"`
	Expiry               *time.Time                  `json:"expiry,omitempty"`
	AuthenticSigningTime *time.Time                  `json:"authenticSigningTime,omitempty"`
	ExtendedAttributes   map[interface{}]interface{} `json:"extendedAttributes,omitempty"`
}

CriticalAttributes contains all Notary V2 defined critical attributes and their values in the signature envelope

type DescribeKeyRequest 

type DescribeKeyRequest struct {
	ContractVersion string            `json:"contractVersion"`
	KeyID           string            `json:"keyId"`
	PluginConfig    map[string]string `json:"pluginConfig,omitempty"`
}

DescribeKeyRequest contains the parameters passed in a describe-key request.

func (DescribeKeyRequest) Command 

func (DescribeKeyRequest) Command() Command

type DescribeKeyResponse 

type DescribeKeyResponse struct {
	// The same key id as passed in the request.
	KeyID string `json:"keyId"`

	// One of following supported key types:
	// https://github.com/notaryproject/notaryproject/blob/main/signature-specification.md#algorithm-selection
	KeySpec string `json:"keySpec"`
}

DescribeKeyResponse is the response of a describe-key request.

type ErrorCode 

type ErrorCode string
const (
	// Any of the required request fields was empty,
	// or a value was malformed/invalid.
	ErrorCodeValidation ErrorCode = "VALIDATION_ERROR"

	// The contract version used in the request is unsupported.
	ErrorCodeUnsupportedContractVersion ErrorCode = "UNSUPPORTED_CONTRACT_VERSION"

	// Authentication/authorization error to use given key.
	ErrorCodeAccessDenied ErrorCode = "ACCESS_DENIED"

	// The operation to generate signature timed out
	// and can be retried by Notation.
	ErrorCodeTimeout ErrorCode = "TIMEOUT"

	// The operation to generate signature was throttles
	// and can be retried by Notation.
	ErrorCodeThrottled ErrorCode = "THROTTLED"

	// Any general error that does not fall into any categories.
	ErrorCodeGeneric ErrorCode = "ERROR"
)

type GenerateEnvelopeRequest 

type GenerateEnvelopeRequest struct {
	ContractVersion       string            `json:"contractVersion"`
	KeyID                 string            `json:"keyId"`
	PayloadType           string            `json:"payloadType"`
	SignatureEnvelopeType string            `json:"signatureEnvelopeType"`
	Payload               []byte            `json:"payload"`
	PluginConfig          map[string]string `json:"pluginConfig,omitempty"`
}

GenerateEnvelopeRequest contains the parameters passed in a generate-envelope request.

func (GenerateEnvelopeRequest) Command 

func (GenerateEnvelopeRequest) Command() Command

type GenerateEnvelopeResponse 

type GenerateEnvelopeResponse struct {
	SignatureEnvelope     []byte            `json:"signatureEnvelope"`
	SignatureEnvelopeType string            `json:"signatureEnvelopeType"`
	Annotations           map[string]string `json:"annotations,omitempty"`
}

GenerateEnvelopeResponse is the response of a generate-envelope request.

type GenerateSignatureRequest 

type GenerateSignatureRequest struct {
	ContractVersion string            `json:"contractVersion"`
	KeyID           string            `json:"keyId"`
	KeySpec         string            `json:"keySpec"`
	Hash            string            `json:"hashAlgorithm"`
	Payload         []byte            `json:"payload"`
	PluginConfig    map[string]string `json:"pluginConfig,omitempty"`
}

GenerateSignatureRequest contains the parameters passed in a generate-signature request.

func (GenerateSignatureRequest) Command 

func (GenerateSignatureRequest) Command() Command

type GenerateSignatureResponse 

type GenerateSignatureResponse struct {
	KeyID            string `json:"keyId"`
	Signature        []byte `json:"signature"`
	SigningAlgorithm string `json:"signingAlgorithm"`

	// Ordered list of certificates starting with leaf certificate
	// and ending with root certificate.
	CertificateChain [][]byte `json:"certificateChain"`
}

GenerateSignatureResponse is the response of a generate-signature request.

type GetMetadataRequest 

type GetMetadataRequest struct {
	PluginConfig map[string]string `json:"pluginConfig,omitempty"`
}

GetMetadataRequest contains the parameters passed in a get-plugin-metadata request.

func (GetMetadataRequest) Command 

func (GetMetadataRequest) Command() Command

type Metadata 

type Metadata struct {
	Name                      string       `json:"name"`
	Description               string       `json:"description"`
	Version                   string       `json:"version"`
	URL                       string       `json:"url"`
	SupportedContractVersions []string     `json:"supportedContractVersions"`
	Capabilities              []Capability `json:"capabilities"`
}

Metadata provided by the plugin.

func (Metadata) Command 

func (Metadata) Command() Command

func (*Metadata) HasCapability 

func (m *Metadata) HasCapability(capability Capability) bool

HasCapability return true if the metadata states that the capability is supported. Returns true if capability is empty.

func (*Metadata) SupportsContract 

func (m *Metadata) SupportsContract(ver string) bool

SupportsContract return true if the metadata states that the contract version is supported.

func (*Metadata) Validate 

func (m *Metadata) Validate() error

Validate checks if the metadata is correctly populated.

type Request 

type Request interface {
	Command() Command
}

Request defines a plugin request, which is always associated to a command.

type RequestError 

type RequestError struct {
	Code     ErrorCode
	Err      error
	Metadata map[string]string
}

RequestError is the common error response for any request.

func (RequestError) Error 

func (e RequestError) Error() string

func (RequestError) Is 

func (e RequestError) Is(target error) bool

func (RequestError) MarshalJSON 

func (e RequestError) MarshalJSON() ([]byte, error)

func (*RequestError) UnmarshalJSON 

func (e *RequestError) UnmarshalJSON(data []byte) error

func (RequestError) Unwrap 

func (e RequestError) Unwrap() error

type Runner 

type Runner interface {
	// Run executes the specified command and waits for it to complete.
	//
	// When the returned object is not nil, its type is guaranteed to remain always the same for a given Command.
	//
	// The returned error is nil if:
	// - the plugin exists
	// - the command runs and exits with a zero exit status
	// - the command stdout contains a valid json object which can be unmarshal-ed.
	//
	// If the command starts but does not complete successfully, the error is of type RequestError wrapping a *exec.ExitError.
	// Other error types may be returned for other situations.
	Run(ctx context.Context, req Request) (interface{}, error)
}

Runner is an interface for running commands against a plugin.

type Signature 

type Signature struct {
	CriticalAttributes    CriticalAttributes `json:"criticalAttributes"`
	UnprocessedAttributes []interface{}      `json:"unprocessedAttributes"`
	CertificateChain      [][]byte           `json:"certificateChain"`
}

Signature represents a signature pulled from the envelope

type SigningScheme 

type SigningScheme string

SigningScheme formalizes the feature set provided by the signature produced using a signing scheme 

const (
	// SigningSchemeDefault defines a signing scheme that uses the traditional signing workflow
	// in which an end user generates signatures using X.509 certificates
	SigningSchemeDefault SigningScheme = "notary.default.x509"

	// SigningSchemeAuthority defines a signing scheme in which a signing authority
	// generates signatures on behalf of an end user using X.509 certificates
	SigningSchemeAuthority SigningScheme = "notary.signingAuthority.x509"
)

type TrustPolicy 

type TrustPolicy struct {
	TrustedIdentities     []string                 `json:"trustedIdentities"`
	SignatureVerification []VerificationCapability `json:"signatureVerification"`
}

TrustPolicy represents trusted identities that sign the artifacts

type VerificationCapability 

type VerificationCapability string

VerificationCapability is a verification feature available in the plugin contract. 

const (
	// VerificationCapabilityTrustedIdentity is the name of the capability
	// for a plugin to support verifying trusted identities.
	VerificationCapabilityTrustedIdentity VerificationCapability = "SIGNATURE_VERIFIER.TRUSTED_IDENTITY"

	// VerificationCapabilityRevocationCheck is the name of the capability
	// for a plugin to support verifying revocation checks.
	VerificationCapabilityRevocationCheck VerificationCapability = "SIGNATURE_VERIFIER.REVOCATION_CHECK"
)

type VerificationResult 

type VerificationResult struct {
	Success bool   `json:"success"`
	Reason  string `json:"reason,omitempty"`
}

VerificationResult is the result of a verification performed by the plugin

type VerifySignatureRequest 

type VerifySignatureRequest struct {
	ContractVersion string            `json:"contractVersion"`
	Signature       Signature         `json:"signature"`
	TrustPolicy     TrustPolicy       `json:"trustPolicy"`
	PluginConfig    map[string]string `json:"pluginConfig,omitempty"`
}

VerifySignatureRequest contains the parameters passed in a verify-signature request.

func (VerifySignatureRequest) Command 

func (VerifySignatureRequest) Command() Command

type VerifySignatureResponse 

type VerifySignatureResponse struct {
	VerificationResults map[VerificationCapability]*VerificationResult `json:"verificationResults"`
	ProcessedAttributes []interface{}                                  `json:"processedAttributes"`
}

VerifySignatureResponse is the response of a verify-signature request.

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