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 Go to latest Published: Apr 28, 2015 License: MPL-2.0 Imports: 15 Imported by: 0

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Index

Constants

View Source 
const WALPrefix = "wal/"

WALPrefix is the prefix within Storage where WAL entries will be written.

Variables

This section is empty.

Functions

func DeleteWAL 

func DeleteWAL(s logical.Storage, id string) error

DeleteWAL commits the WAL entry with the given ID. Once comitted, it is assumed that the operation was a success and doesn't need to be rolled back.

func ListWAL 

func ListWAL(s logical.Storage) ([]string, error)

ListWAL lists all the entries in the WAL.

func PutWAL 

func PutWAL(s logical.Storage, kind string, data interface{}) (string, error)

PutWAL writes some data to the WAL.

The kind parameter is used by the framework to allow users to store multiple kinds of WAL data and to easily disambiguate what data they're expecting.

Data within the WAL that is uncommitted (CommitWAL hasn't be called) will be given to the rollback callback when an rollback operation is received, allowing the backend to clean up some partial states.

The data must be JSON encodable.

This returns a unique ID that can be used to reference this WAL data. WAL data cannot be modified. You can only add to the WAL and commit existing WAL entries.

Types

type Backend 

type Backend struct {
	// Help is the help text that is shown when a help request is made
	// on the root of this resource. The root help is special since we
	// show all the paths that can be requested.
	Help string

	// Paths are the various routes that the backend responds to.
	// This cannot be modified after construction (i.e. dynamically changing
	// paths, including adding or removing, is not allowed once the
	// backend is in use).
	//
	// PathsSpecial is the list of path patterns that denote the
	// paths above that require special privileges. These can't be
	// regular expressions, it is either exact match or prefix match.
	// For prefix match, append '*' as a suffix.
	Paths        []*Path
	PathsSpecial *logical.Paths

	// Secrets is the list of secret types that this backend can
	// return. It is used to automatically generate proper responses,
	// and ease specifying callbacks for revocation, renewal, etc.
	Secrets []*Secret

	// Rollback is called when a WAL entry (see wal.go) has to be rolled
	// back. It is called with the data from the entry.
	//
	// RollbackMinAge is the minimum age of a WAL entry before it is attempted
	// to be rolled back. This should be longer than the maximum time it takes
	// to successfully create a secret.
	Rollback       RollbackFunc
	RollbackMinAge time.Duration

	// AuthRenew is the callback to call when a RenewRequest for an
	// authentication comes in. By default, renewal won't be allowed.
	// See the built-in AuthRenew helpers in lease.go for common callbacks.
	AuthRenew OperationFunc
	// contains filtered or unexported fields
}

Backend is an implementation of logical.Backend that allows the implementer to code a backend using a much more programmer-friendly framework that handles a lot of the routing and validation for you.

This is recommended over implementing logical.Backend directly.

func (*Backend) HandleRequest 

func (b *Backend) HandleRequest(req *logical.Request) (*logical.Response, error)

logical.Backend impl.

func (*Backend) Logger 

func (b *Backend) Logger() *log.Logger

Logger can be used to get the logger. If no logger has been set, the logs will be discarded.

func (*Backend) Route 

func (b *Backend) Route(path string) *Path

Route looks up the path that would be used for a given path string.

func (*Backend) Secret 

func (b *Backend) Secret(k string) *Secret

Secret is used to look up the secret with the given type.

func (*Backend) SetLogger 

func (b *Backend) SetLogger(logger *log.Logger)

logical.Backend impl.

func (*Backend) SpecialPaths 

func (b *Backend) SpecialPaths() *logical.Paths

logical.Backend impl.

type FieldData 

type FieldData struct {
	Raw    map[string]interface{}
	Schema map[string]*FieldSchema
}

FieldData is the structure passed to the callback to handle a path containing the populated parameters for fields. This should be used instead of the raw (*vault.Request).Data to access data in a type-safe way.

func (*FieldData) Get 

func (d *FieldData) Get(k string) interface{}

Get gets the value for the given field. If the key is an invalid field, FieldData will panic. If you want a safer version of this method, use GetOk. If the field k is not set, the default value (if set) will be returned, otherwise the zero value will be returned.

func (*FieldData) GetOk 

func (d *FieldData) GetOk(k string) (interface{}, bool)

GetOk gets the value for the given field. The second return value will be false if the key is invalid or the key is not set at all.

func (*FieldData) GetOkErr 

func (d *FieldData) GetOkErr(k string) (interface{}, bool, error)

GetOkErr is the most conservative of all the Get methods. It returns whether key is set or not, but also an error value. The error value is non-nil if the field doesn't exist or there was an error parsing the field value.

type FieldSchema 

type FieldSchema struct {
	Type        FieldType
	Default     interface{}
	Description string
}

FieldSchema is a basic schema to describe the format of a path field.

func (*FieldSchema) DefaultOrZero 

func (s *FieldSchema) DefaultOrZero() interface{}

DefaultOrZero returns the default value if it is set, or otherwise the zero value of the type.

type FieldType 

type FieldType uint

FieldType is the enum of types that a field can be. 

const (
	TypeInvalid FieldType = 0
	TypeString  FieldType = iota
	TypeInt
	TypeBool
	TypeMap
)

func (FieldType) String 

func (t FieldType) String() string

func (FieldType) Zero 

func (t FieldType) Zero() interface{}

type OperationFunc 

type OperationFunc func(*logical.Request, *FieldData) (*logical.Response, error)

OperationFunc is the callback called for an operation on a path.

func LeaseExtend 

func LeaseExtend(max, maxSession time.Duration) OperationFunc

LeaseExtend returns an OperationFunc that can be used to simply extend the lease of the auth/secret for the duration that was requested. Max is the max time past the _current_ time that a lease can be extended. i.e. setting it to 2 hours forces a renewal within the next 2 hours again.

maxSession is the maximum session length allowed since the original issue time. If this is zero, it is ignored,.

type Path 

type Path struct {
	// Pattern is the pattern of the URL that matches this path.
	//
	// This should be a valid regular expression. Named captures will be
	// exposed as fields that should map to a schema in Fields. If a named
	// capture is not a field in the Fields map, then it will be ignored.
	Pattern string

	// Fields is the mapping of data fields to a schema describing that
	// field. Named captures in the Pattern also map to fields. If a named
	// capture name matches a PUT body name, the named capture takes
	// priority.
	//
	// Note that only named capture fields are available in every operation,
	// whereas all fields are avaiable in the Write operation.
	Fields map[string]*FieldSchema

	// Callbacks are the set of callbacks that are called for a given
	// operation. If a callback for a specific operation is not present,
	// then logical.ErrUnsupportedOperation is automatically generated.
	//
	// The help operation is the only operation that the Path will
	// automatically handle if the Help field is set. If both the Help
	// field is set and there is a callback registered here, then the
	// callback will be called.
	Callbacks map[logical.Operation]OperationFunc

	// Help is text describing how to use this path. This will be used
	// to auto-generate the help operation. The Path will automatically
	// generate a parameter listing and URL structure based on the
	// regular expression, so the help text should just contain a description
	// of what happens.
	//
	// HelpSynopsis is a one-sentence description of the path. This will
	// be automatically line-wrapped at 80 characters.
	//
	// HelpDescription is a long-form description of the path. This will
	// be automatically line-wrapped at 80 characters.
	HelpSynopsis    string
	HelpDescription string
}

Path is a single path that the backend responds to.

func PathAppend 

func PathAppend(paths ...[]*Path) []*Path

PathAppend is a helper for appending lists of paths into a single list.

type PathMap 

type PathMap struct {
	Prefix string
	Name   string
	Schema map[string]*FieldSchema
	// contains filtered or unexported fields
}

PathMap can be used to generate a path that stores mappings in the storage. It is a structure that also exports functions for querying the mappings.

The primary use case for this is for credential providers to do their mapping to policies.

func (*PathMap) Get 

func (p *PathMap) Get(s logical.Storage, k string) (map[string]interface{}, error)

Get reads a value out of the mapping

func (*PathMap) List 

func (p *PathMap) List(s logical.Storage, prefix string) ([]string, error)

List reads the keys under a given path

func (*PathMap) Paths 

func (p *PathMap) Paths() []*Path

Paths are the paths to append to the Backend paths.

func (*PathMap) Put 

func (p *PathMap) Put(s logical.Storage, k string, v map[string]interface{}) error

Put writes a value into the mapping

type PathStruct 

type PathStruct struct {
	Name            string
	Path            string
	Schema          map[string]*FieldSchema
	HelpSynopsis    string
	HelpDescription string

	Read bool
}

PathStruct can be used to generate a path that stores a struct in the storage. This structure is a map[string]interface{} but the types are set according to the schema in this structure.

func (*PathStruct) Get 

func (p *PathStruct) Get(s logical.Storage) (map[string]interface{}, error)

Get reads the structure.

func (*PathStruct) Paths 

func (p *PathStruct) Paths() []*Path

Paths are the paths to append to the Backend paths.

func (*PathStruct) Put 

func (p *PathStruct) Put(s logical.Storage, v map[string]interface{}) error

Put writes the structure.

type PolicyMap 

type PolicyMap struct {
	PathMap

	DefaultKey string
	PolicyKey  string
}

PolicyMap is a specialization of PathMap that expects the values to be lists of policies. This assists in querying and loading policies from the PathMap.

func (*PolicyMap) Policies 

func (p *PolicyMap) Policies(s logical.Storage, names ...string) ([]string, error)

type RollbackFunc 

type RollbackFunc func(*logical.Request, string, interface{}) error

RollbackFunc is the callback for rollbacks.

type Secret 

type Secret struct {
	// Type is the name of this secret type. This is used to setup the
	// vault ID and to look up the proper secret structure when revocation/
	// renewal happens. Once this is set this should not be changed.
	//
	// The format of this must match (case insensitive): ^a-Z0-9_$
	Type string

	// Fields is the mapping of data fields and schema that comprise
	// the structure of this secret.
	Fields map[string]*FieldSchema

	// DefaultDuration and DefaultGracePeriod are the default values for
	// the duration of the lease for this secret and its grace period. These
	// can be manually overwritten with the result of Response().
	//
	// If these aren't set, Vault core will set a default lease period.
	DefaultDuration    time.Duration
	DefaultGracePeriod time.Duration

	// Renew is the callback called to renew this secret. If Renew is
	// not specified then renewable is set to false in the secret.
	// See lease.go for helpers for this value.
	Renew OperationFunc

	// Revoke is the callback called to revoke this secret. This is required.
	Revoke OperationFunc
}

Secret is a type of secret that can be returned from a backend.

func (*Secret) HandleRenew 

func (s *Secret) HandleRenew(req *logical.Request) (*logical.Response, error)

HandleRenew is the request handler for renewing this secret.

func (*Secret) HandleRevoke 

func (s *Secret) HandleRevoke(req *logical.Request) (*logical.Response, error)

HandleRevoke is the request handler for renewing this secret.

func (*Secret) Renewable 

func (s *Secret) Renewable() bool

func (*Secret) Response 

func (s *Secret) Response(
	data, internal map[string]interface{}) *logical.Response

type WALEntry 

type WALEntry struct {
	ID        string      `json:"-"`
	Kind      string      `json:"type"`
	Data      interface{} `json:"data"`
	CreatedAt int64       `json:"created_at"`
}

func GetWAL 

func GetWAL(s logical.Storage, id string) (*WALEntry, error)

GetWAL reads a specific entry from the WAL. If the entry doesn't exist, then nil value is returned.

The kind, value, and error are returned.

Source Files

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