storage

package
v0.3.0 Latest Latest
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 Go to latest Published: May 10, 2016 License: Apache-2.0 Imports: 16 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) (*time.Time, []byte, error)

GetChecksum returns the createupdate date and metadata for a given role, under a GUN.

func (*MemStorage) GetCurrent 

func (st *MemStorage) GetCurrent(gun, role string) (*time.Time, []byte, error)

GetCurrent returns the createupdate date 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 modification date and 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) (created *time.Time, data []byte, err error)

	// GetChecksum returns the given TUF role file and creation date 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) (created *time.Time, 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 RDBKey added in v0.3.0 

type RDBKey struct {
	rethinkdb.Timing
	Gun    string `gorethink:"gun"`
	Role   string `gorethink:"role"`
	Cipher string `gorethink:"cipher"`
	Public []byte `gorethink:"public"`
}

RDBKey is the public key record

func (RDBKey) TableName added in v0.3.0 

func (r RDBKey) TableName() string

TableName returns the table name for the record type

type RDBTUFFile added in v0.3.0 

type RDBTUFFile struct {
	rethinkdb.Timing
	GunRoleVersion []interface{} `gorethink:"gun_role_version"`
	Gun            string        `gorethink:"gun"`
	Role           string        `gorethink:"role"`
	Version        int           `gorethink:"version"`
	Sha256         string        `gorethink:"sha256"`
	Data           []byte        `gorethink:"data"`
	TSchecksum     string        `gorethink:"timestamp_checksum"`
}

RDBTUFFile is a tuf file record

func (RDBTUFFile) TableName added in v0.3.0 

func (r RDBTUFFile) TableName() string

TableName returns the table name for the record type

type RethinkDB added in v0.3.0 

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

RethinkDB implements a MetaStore against the Rethink Database

func NewRethinkDBStorage added in v0.3.0 

func NewRethinkDBStorage(dbName string, sess *gorethink.Session) RethinkDB

NewRethinkDBStorage initializes a RethinkDB object

func (RethinkDB) Bootstrap added in v0.3.0 

func (rdb RethinkDB) Bootstrap() error

Bootstrap sets up the database and tables

func (RethinkDB) CheckHealth added in v0.3.0 

func (rdb RethinkDB) CheckHealth() error

CheckHealth is currently a noop

func (RethinkDB) Delete added in v0.3.0 

func (rdb RethinkDB) Delete(gun string) error

Delete removes all metadata for a given GUN. It does not return an error if no metadata exists for the given GUN.

func (RethinkDB) GetChecksum added in v0.3.0 

func (rdb RethinkDB) GetChecksum(gun, role, checksum string) (created *time.Time, data []byte, err error)

GetChecksum returns the given TUF role file and creation date for the GUN with the provided checksum. If the given (gun, role, checksum) are not found, it returns storage.ErrNotFound

func (RethinkDB) GetCurrent added in v0.3.0 

func (rdb RethinkDB) GetCurrent(gun, role string) (created *time.Time, data []byte, err error)

GetCurrent returns the modification date and 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.

func (RethinkDB) GetKey added in v0.3.0 

func (rdb RethinkDB) GetKey(gun, role string) (cipher string, public []byte, err error)

GetKey returns the cipher and public key for the given GUN and role. If the GUN+role don't exist, returns an error.

func (RethinkDB) SetKey added in v0.3.0 

func (rdb RethinkDB) SetKey(gun, role, cipher string, public []byte) error

SetKey sets the cipher and public key for the given GUN and role if it doesn't already exist. Otherwise an error is returned.

func (RethinkDB) UpdateCurrent added in v0.3.0 

func (rdb RethinkDB) UpdateCurrent(gun string, update MetaUpdate) error

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.

func (RethinkDB) UpdateCurrentWithTSChecksum added in v0.3.0 

func (rdb RethinkDB) UpdateCurrentWithTSChecksum(gun, tsChecksum string, update MetaUpdate) error

UpdateCurrentWithTSChecksum adds new metadata version for the given GUN with an associated checksum for the timestamp it belongs to, to afford us transaction-like functionality

func (RethinkDB) UpdateMany added in v0.3.0 

func (rdb RethinkDB) UpdateMany(gun string, updates []MetaUpdate) error

UpdateMany adds multiple new metadata for the given GUN. RethinkDB does not support transactions, therefore we will attempt to insert the timestamp last as this represents a published version of the repo. However, we will insert all other role data in alphabetical order first, and also include the associated timestamp checksum so that we can easily roll back this pseudotransaction

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) (*time.Time, []byte, error)

GetChecksum gets a specific TUF record by its hex checksum

func (*SQLStorage) GetCurrent 

func (db *SQLStorage) GetCurrent(gun, tufRole string) (*time.Time, []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

type TUFMetaStorage added in v0.3.0 

type TUFMetaStorage struct {
	MetaStore
	// contains filtered or unexported fields
}

TUFMetaStorage wraps a MetaStore in order to walk the TUF tree for GetCurrent in a consistent manner, by always starting from a current timestamp and then looking up other data by hash

func NewTUFMetaStorage added in v0.3.0 

func NewTUFMetaStorage(m MetaStore) *TUFMetaStorage

NewTUFMetaStorage instantiates a TUFMetaStorage instance

func (TUFMetaStorage) Bootstrap added in v0.3.0 

func (tms TUFMetaStorage) Bootstrap() error

Bootstrap the store with tables if possible

func (TUFMetaStorage) GetChecksum added in v0.3.0 

func (tms TUFMetaStorage) GetChecksum(gun, tufRole, checksum string) (*time.Time, []byte, error)

GetChecksum gets a specific TUF record by checksum, also checking the internal cache

func (TUFMetaStorage) GetCurrent added in v0.3.0 

func (tms TUFMetaStorage) GetCurrent(gun, tufRole string) (*time.Time, []byte, error)

GetCurrent gets a specific TUF record, by walking from the current Timestamp to other metadata by checksum

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