storage

package
v0.2.0 Latest Latest
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 Go to latest Published: Feb 25, 2016 License: Apache-2.0 Imports: 9 Imported by: 0

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Index

Constants

This section is empty.

Variables

This section is empty.

Functions

func CreateKeyTable 

func CreateKeyTable(db gorm.DB) error

CreateKeyTable creates the DB table for TUFFile

func CreateTUFTable 

func CreateTUFTable(db gorm.DB) error

CreateTUFTable creates the DB table for TUFFile

Types

type ErrKeyExists 

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

ErrKeyExists is returned when a key already exists

func (ErrKeyExists) Error 

func (err ErrKeyExists) Error() string

ErrKeyExists is returned when a key already exists

type ErrNoKey 

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

ErrNoKey is returned when no timestamp key is found

func (ErrNoKey) Error 

func (err ErrNoKey) Error() string

ErrNoKey is returned when no timestamp key is found

type ErrNotFound 

type ErrNotFound struct{}

ErrNotFound is returned when TUF metadata isn't found for a specific record

func (ErrNotFound) Error 

func (err ErrNotFound) Error() string

Error implements error

type ErrOldVersion 

type ErrOldVersion struct{}

ErrOldVersion is returned when a newer version of TUF metadada is already available

func (ErrOldVersion) Error 

func (err ErrOldVersion) Error() string

ErrOldVersion is returned when a newer version of TUF metadada is already available

type Key 

type Key struct {
	gorm.Model
	Gun    string `sql:"type:varchar(255);not null;unique_index:gun_role"`
	Role   string `sql:"type:varchar(255);not null;unique_index:gun_role"`
	Cipher string `sql:"type:varchar(30);not null"`
	Public []byte `sql:"type:blob;not null"`
}

Key represents a single timestamp key in the database

func (Key) TableName 

func (g Key) TableName() string

TableName sets a specific table name for our TimestampKey

type KeyStore 

type KeyStore interface {
	// GetKey returns the algorithm and public key for the given GUN and role.
	// If the GUN+role don't exist, returns an error.
	GetKey(gun, role string) (algorithm string, public []byte, err error)

	// SetKey sets the algorithm and public key for the given GUN and role if
	// it doesn't already exist.  Otherwise an error is returned.
	SetKey(gun, role, algorithm string, public []byte) error
}

KeyStore provides a minimal interface for managing key persistence

type MemStorage 

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

MemStorage is really just designed for dev and testing. It is very inefficient in many scenarios

func NewMemStorage 

func NewMemStorage() *MemStorage

NewMemStorage instantiates a memStorage instance

func (*MemStorage) Delete 

func (st *MemStorage) Delete(gun string) error

Delete deletes all the metadata for a given GUN

func (*MemStorage) GetChecksum 

func (st *MemStorage) GetChecksum(gun, role, checksum string) (data []byte, err error)

GetChecksum returns the metadata for a given role, under a GUN

func (*MemStorage) GetCurrent 

func (st *MemStorage) GetCurrent(gun, role string) (data []byte, err error)

GetCurrent returns the metadata for a given role, under a GUN

func (*MemStorage) GetKey 

func (st *MemStorage) GetKey(gun, role string) (algorithm string, public []byte, err error)

GetKey returns the public key material of the timestamp key of a given gun

func (*MemStorage) SetKey 

func (st *MemStorage) SetKey(gun, role, algorithm string, public []byte) error

SetKey sets a key under a gun and role

func (*MemStorage) UpdateCurrent 

func (st *MemStorage) UpdateCurrent(gun string, update MetaUpdate) error

UpdateCurrent updates the meta data for a specific role

func (*MemStorage) UpdateMany 

func (st *MemStorage) UpdateMany(gun string, updates []MetaUpdate) error

UpdateMany updates multiple TUF records

type MetaStore 

type MetaStore interface {
	// UpdateCurrent adds new metadata version for the given GUN if and only
	// if it's a new role, or the version is greater than the current version
	// for the role. Otherwise an error is returned.
	UpdateCurrent(gun string, update MetaUpdate) error

	// UpdateMany adds multiple new metadata for the given GUN.  It can even
	// add multiple versions for the same role, so long as those versions are
	// all unique and greater than any current versions.  Otherwise,
	// none of the metadata is added, and an error is be returned.
	UpdateMany(gun string, updates []MetaUpdate) error

	// GetCurrent returns the data part of the metadata for the latest version
	// of the given GUN and role.  If there is no data for the given GUN and
	// role, an error is returned.
	GetCurrent(gun, tufRole string) (data []byte, err error)

	// GetChecksum return the given tuf role file for the GUN with the
	// provided checksum. If the given (gun, role, checksum) are not
	// found, it returns storage.ErrNotFound
	GetChecksum(gun, tufRole, checksum string) (data []byte, err error)

	// Delete removes all metadata for a given GUN.  It does not return an
	// error if no metadata exists for the given GUN.
	Delete(gun string) error

	KeyStore
}

MetaStore holds the methods that are used for a Metadata Store

type MetaUpdate 

type MetaUpdate struct {
	Role    string
	Version int
	Data    []byte
}

MetaUpdate packages up the fields required to update a TUF record

type SQLStorage 

type SQLStorage struct {
	gorm.DB
}

SQLStorage implements a versioned store using a relational database. See server/storage/models.go

func NewSQLStorage 

func NewSQLStorage(dialect string, args ...interface{}) (*SQLStorage, error)

NewSQLStorage is a convenience method to create a SQLStorage

func (*SQLStorage) CheckHealth 

func (db *SQLStorage) CheckHealth() error

CheckHealth asserts that both required tables are present

func (*SQLStorage) Delete 

func (db *SQLStorage) Delete(gun string) error

Delete deletes all the records for a specific GUN

func (*SQLStorage) GetChecksum 

func (db *SQLStorage) GetChecksum(gun, tufRole, checksum string) ([]byte, error)

GetChecksum gets a specific TUF record by its hex checksum

func (*SQLStorage) GetCurrent 

func (db *SQLStorage) GetCurrent(gun, tufRole string) ([]byte, error)

GetCurrent gets a specific TUF record

func (*SQLStorage) GetKey 

func (db *SQLStorage) GetKey(gun, role string) (algorithm string, public []byte, err error)

GetKey returns the Public Key data for a gun+role

func (*SQLStorage) SetKey 

func (db *SQLStorage) SetKey(gun, role, algorithm string, public []byte) error

SetKey attempts to write a key and returns an error if it already exists for the gun and role

func (*SQLStorage) UpdateCurrent 

func (db *SQLStorage) UpdateCurrent(gun string, update MetaUpdate) error

UpdateCurrent updates a single TUF.

func (*SQLStorage) UpdateMany 

func (db *SQLStorage) UpdateMany(gun string, updates []MetaUpdate) error

UpdateMany atomically updates many TUF records in a single transaction

type TUFFile 

type TUFFile struct {
	gorm.Model
	Gun     string `sql:"type:varchar(255);not null"`
	Role    string `sql:"type:varchar(255);not null"`
	Version int    `sql:"not null"`
	Sha256  string `sql:"type:varchar(64);"`
	Data    []byte `sql:"type:longblob;not null"`
}

TUFFile represents a TUF file in the database

func (TUFFile) TableName 

func (g TUFFile) TableName() string

TableName sets a specific table name for TUFFile

Source Files

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