network

package
v0.0.0-...-8aa4d74 Latest Latest
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 Go to latest Published: Feb 13, 2019 License: GPL-3.0 Imports: 42 Imported by: 0

Documentation

Overview

Provides test utility to mock a network in unittests

Index

Constants

View Source 
const (
	RouterNameNode   = "node"
	RouterNameAPI    = "api"
	RouterNameMetric = "metrics"
	RouterNameDebug  = "debug"
)

Variables

View Source 
var (
	UrlPathPrefixNode   = fmt.Sprintf("/%s", RouterNameNode)
	UrlPathPrefixAPI    = fmt.Sprintf("/%s", RouterNameAPI)
	UrlPathPrefixDebug  = fmt.Sprintf("/%s", RouterNameDebug)
	UrlPathPrefixMetric = fmt.Sprintf("/%s", RouterNameMetric)
	UrlPathPrefixes     = []string{
		UrlPathPrefixNode,
		UrlPathPrefixAPI,
		UrlPathPrefixDebug,
		UrlPathPrefixMetric,
	}
)
View Source 
var HeaderKeyFiltered []string = []string{
	"Content-Length",
	"Content-Type",
	"Accept",
	"Accept-Encoding",
	"User-Agent",
}
View Source 
var VerboseLogs bool

Functions

func CreateNewMemoryEndpoint 

func CreateNewMemoryEndpoint() *common.Endpoint

func GenerateKey 

func GenerateKey(dirPath, certPath, keyPath string)

func RateLimitMiddleware 

func RateLimitMiddleware(logger logging.Logger, rule common.RateLimitRule) mux.MiddlewareFunc

RateLimitMiddleware throttles the incoming requests; if `Limit` is 0, there will be no limit.

func RecoverMiddleware 

func RecoverMiddleware(logger logging.Logger) mux.MiddlewareFunc

func SetHTTPLogging 

func SetHTTPLogging(level logging.Lvl, handler logging.Handler)

func SetLogging 

func SetLogging(level logging.Lvl, handler logging.Handler)

Types

type ConnectionManager 

type ConnectionManager interface {
	GetConnection(string) NetworkClient
	Broadcast(common.Message)
	Start()
	AllConnected() []string
	AllValidators() []string
	CountConnected() int
	IsReady() bool
	Discovery(DiscoveryMessage) error
}

func NewValidatorConnectionManager 

func NewValidatorConnectionManager(
	localNode *node.LocalNode,
	network Network,
	policy voting.ThresholdPolicy,
	config common.Config,
) ConnectionManager

type DiscoveryMessage 

type DiscoveryMessage struct {
	H DiscoveryMessageHeader
	B DiscoveryMessageBody
}

func DiscoveryMessageFromJSON 

func DiscoveryMessageFromJSON(b []byte) (dm DiscoveryMessage, err error)

func NewDiscoveryMessage 

func NewDiscoveryMessage(localNode *node.LocalNode, validators ...*node.Validator) (dm DiscoveryMessage, err error)

func (DiscoveryMessage) Equal 

func (dm DiscoveryMessage) Equal(common.Message) bool

func (DiscoveryMessage) FilterUndiscovered 

func (dm DiscoveryMessage) FilterUndiscovered(validators map[string]*node.Validator) []*node.Validator

FilterUndiscovered returns,

  • not yet registered validators
  • registered, but endpoint is changed.

FilterUndiscovered can get the `node.LocalNode.GetValidators()` directly.

func (DiscoveryMessage) GetHash 

func (dm DiscoveryMessage) GetHash() string

func (DiscoveryMessage) GetType 

func (dm DiscoveryMessage) GetType() common.MessageType

func (DiscoveryMessage) IsWellFormed 

func (dm DiscoveryMessage) IsWellFormed(conf common.Config) error

func (DiscoveryMessage) Serialize 

func (dm DiscoveryMessage) Serialize() ([]byte, error)

func (*DiscoveryMessage) Sign 

func (dm *DiscoveryMessage) Sign(kp keypair.KP, networkID []byte)

func (DiscoveryMessage) Source 

func (dm DiscoveryMessage) Source() string

func (DiscoveryMessage) String 

func (dm DiscoveryMessage) String() string

func (DiscoveryMessage) Version 

func (dm DiscoveryMessage) Version() string

type DiscoveryMessageBody 

type DiscoveryMessageBody struct {
	Created    string            `json:"created"`
	Address    string            `json:"address"`  // LocalNode.Address()
	Endpoint   *common.Endpoint  `json:"endpoint"` // LocalNode.publishEndpoint()
	Validators []*node.Validator `json:"validators"`
}

func (DiscoveryMessageBody) MakeHashString 

func (db DiscoveryMessageBody) MakeHashString() string

type DiscoveryMessageHeader 

type DiscoveryMessageHeader struct {
	Signature string `json:"signature"`
}

type HTTP2ErrorLog15Writer 

type HTTP2ErrorLog15Writer struct {
	// contains filtered or unexported fields
}

func (HTTP2ErrorLog15Writer) Write 

func (w HTTP2ErrorLog15Writer) Write(b []byte) (int, error)

type HTTP2Log15Handler 

type HTTP2Log15Handler struct {
	// contains filtered or unexported fields
}

func (HTTP2Log15Handler) ServeHTTP 

func (l HTTP2Log15Handler) ServeHTTP(w http.ResponseWriter, r *http.Request)

ServeHTTP will log in 2 phase, when request received and response sent. This was derived from github.com/gorilla/handlers/handlers.go

type HTTP2MessageBroker 

type HTTP2MessageBroker struct {
	// contains filtered or unexported fields
}

func (HTTP2MessageBroker) Receive 

func (r HTTP2MessageBroker) Receive(msg common.NetworkMessage)

func (HTTP2MessageBroker) Response 

func (r HTTP2MessageBroker) Response(w io.Writer, o []byte) error

type HTTP2Network 

type HTTP2Network struct {
	// contains filtered or unexported fields
}

func NewHTTP2Network 

func NewHTTP2Network(config *HTTP2NetworkConfig) (h2n *HTTP2Network)

func (*HTTP2Network) AddHandler 

func (t *HTTP2Network) AddHandler(pattern string, handler http.HandlerFunc) (router *mux.Route)

func (*HTTP2Network) AddMiddleware 

func (t *HTTP2Network) AddMiddleware(routerName string, mws ...mux.MiddlewareFunc) error

func (*HTTP2Network) Endpoint 

func (t *HTTP2Network) Endpoint() *common.Endpoint

func (*HTTP2Network) GetClient 

func (t *HTTP2Network) GetClient(endpoint *common.Endpoint) NetworkClient

GetClient creates new keep-alive HTTP2 client

func (*HTTP2Network) IsReady 

func (t *HTTP2Network) IsReady() bool

func (*HTTP2Network) MessageBroker 

func (t *HTTP2Network) MessageBroker() MessageBroker

func (*HTTP2Network) Ready 

func (t *HTTP2Network) Ready() error

func (*HTTP2Network) ReceiveChannel 

func (t *HTTP2Network) ReceiveChannel() chan common.NetworkMessage

func (*HTTP2Network) ReceiveMessage 

func (t *HTTP2Network) ReceiveMessage() <-chan common.NetworkMessage

func (*HTTP2Network) SetMessageBroker 

func (t *HTTP2Network) SetMessageBroker(mb MessageBroker)

func (*HTTP2Network) Start 

func (t *HTTP2Network) Start() (err error)

Start will start `HTTP2Network`.

func (*HTTP2Network) Stop 

func (t *HTTP2Network) Stop()

type HTTP2NetworkClient 

type HTTP2NetworkClient struct {
	// contains filtered or unexported fields
}

func NewHTTP2NetworkClient 

func NewHTTP2NetworkClient(endpoint *common.Endpoint, client *common.HTTP2Client) *HTTP2NetworkClient

func (*HTTP2NetworkClient) Connect 

func (c *HTTP2NetworkClient) Connect(n node.Node) (body []byte, err error)

func (*HTTP2NetworkClient) DefaultHeaders 

func (c *HTTP2NetworkClient) DefaultHeaders() http.Header

func (*HTTP2NetworkClient) Endpoint 

func (c *HTTP2NetworkClient) Endpoint() *common.Endpoint

func (*HTTP2NetworkClient) Get 

func (client *HTTP2NetworkClient) Get(endpoint string) ([]byte, error)

/ / Perform a raw Get request on this peer / / This is a quick way to request the API. / As APIs are rapidly evolving, wrapping all of them properly / would be counter productive, to this function is provided. / / Params: / endpoint = URL chunk to request (e.g. `/api/foo?bar=baguette`) / / Returns: / []byte = Body part returned by the query if it was successful / error = Error information if the query wasn't successful /

func (*HTTP2NetworkClient) GetBallots 

func (c *HTTP2NetworkClient) GetBallots() (retBody []byte, err error)

func (*HTTP2NetworkClient) GetNodeInfo 

func (c *HTTP2NetworkClient) GetNodeInfo() (body []byte, err error)

func (*HTTP2NetworkClient) GetTransactions 

func (c *HTTP2NetworkClient) GetTransactions(txs []string) (retBody []byte, err error)

func (*HTTP2NetworkClient) Send 

func (c *HTTP2NetworkClient) Send(path string, message interface{}) (retBody []byte, err error)

func (*HTTP2NetworkClient) SendBallot 

func (c *HTTP2NetworkClient) SendBallot(message interface{}) (retBody []byte, err error)

func (*HTTP2NetworkClient) SendDiscovery 

func (c *HTTP2NetworkClient) SendDiscovery(message interface{}) (retBody []byte, err error)

func (*HTTP2NetworkClient) SendMessage 

func (c *HTTP2NetworkClient) SendMessage(message interface{}) (retBody []byte, err error)

func (*HTTP2NetworkClient) SendTransaction 

func (c *HTTP2NetworkClient) SendTransaction(message interface{}) (retBody []byte, err error)

func (*HTTP2NetworkClient) SetDefaultHeaders 

func (c *HTTP2NetworkClient) SetDefaultHeaders(headers http.Header)

type HTTP2NetworkConfig 

type HTTP2NetworkConfig struct {
	NodeName string
	Endpoint *common.Endpoint
	Addr     string

	ReadTimeout,
	ReadHeaderTimeout,
	WriteTimeout,
	IdleTimeout time.Duration

	TLSCertFile,
	TLSKeyFile string
}

func NewHTTP2NetworkConfigFromEndpoint 

func NewHTTP2NetworkConfigFromEndpoint(nodeName string, endpoint *common.Endpoint) (config *HTTP2NetworkConfig, err error)

func (HTTP2NetworkConfig) IsHTTPS 

func (config HTTP2NetworkConfig) IsHTTPS() bool

func (HTTP2NetworkConfig) String 

func (config HTTP2NetworkConfig) String() string

type HTTP2ResponseLog15Writer 

type HTTP2ResponseLog15Writer struct {
	// contains filtered or unexported fields
}

func (*HTTP2ResponseLog15Writer) Flush 

func (l *HTTP2ResponseLog15Writer) Flush()

func (*HTTP2ResponseLog15Writer) Header 

func (l *HTTP2ResponseLog15Writer) Header() http.Header

func (*HTTP2ResponseLog15Writer) Size 

func (l *HTTP2ResponseLog15Writer) Size() int

func (*HTTP2ResponseLog15Writer) Status 

func (l *HTTP2ResponseLog15Writer) Status() int

func (*HTTP2ResponseLog15Writer) Write 

func (l *HTTP2ResponseLog15Writer) Write(b []byte) (int, error)

func (*HTTP2ResponseLog15Writer) WriteHeader 

func (l *HTTP2ResponseLog15Writer) WriteHeader(s int)

type HandlerFunc 

type HandlerFunc func(w http.ResponseWriter, r *http.Request)

type Handlers 

type Handlers map[string]func(http.ResponseWriter, *http.Request)

type KeyGenerator 

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

func NewKeyGenerator 

func NewKeyGenerator(dirPath, certPath, keyPath string) *KeyGenerator

func (*KeyGenerator) Close 

func (g *KeyGenerator) Close()

func (*KeyGenerator) GetCertPath 

func (g *KeyGenerator) GetCertPath() string

func (*KeyGenerator) GetKeyPath 

func (g *KeyGenerator) GetKeyPath() string

type MemoryMessageBroker 

type MemoryMessageBroker struct {
	Messages []common.NetworkMessage
	// contains filtered or unexported fields
}

func (*MemoryMessageBroker) Receive 

func (r *MemoryMessageBroker) Receive(m common.NetworkMessage)

func (*MemoryMessageBroker) Response 

func (r *MemoryMessageBroker) Response(w io.Writer, o []byte) error

type MemoryNetwork 

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

func CreateMemoryNetwork 

func CreateMemoryNetwork(prev *MemoryNetwork) (*MemoryNetwork, *node.LocalNode)

Create a MemoryNetwork for unittests purpose

If the argument `prev` is `nil`, a whole new network, disconnected from any other network, is created. If `prev` is not `nil`, the returned `MemoryNetwork` will be reachable from every node `prev` can reference

func (*MemoryNetwork) AddHandler 

func (p *MemoryNetwork) AddHandler(string, http.HandlerFunc) *mux.Route

func (*MemoryNetwork) AddMiddleware 

func (p *MemoryNetwork) AddMiddleware(string, ...mux.MiddlewareFunc) error

func (*MemoryNetwork) Endpoint 

func (p *MemoryNetwork) Endpoint() *common.Endpoint

func (*MemoryNetwork) GetClient 

func (t *MemoryNetwork) GetClient(endpoint *common.Endpoint) NetworkClient

func (*MemoryNetwork) GetNodeInfo 

func (p *MemoryNetwork) GetNodeInfo() []byte

func (*MemoryNetwork) IsReady 

func (p *MemoryNetwork) IsReady() bool

func (*MemoryNetwork) MessageBroker 

func (p *MemoryNetwork) MessageBroker() MessageBroker

func (*MemoryNetwork) NewMemoryNetwork 

func (prev *MemoryNetwork) NewMemoryNetwork() *MemoryNetwork

func (*MemoryNetwork) Ready 

func (p *MemoryNetwork) Ready() error

func (*MemoryNetwork) ReceiveChannel 

func (p *MemoryNetwork) ReceiveChannel() chan common.NetworkMessage

func (*MemoryNetwork) ReceiveMessage 

func (p *MemoryNetwork) ReceiveMessage() <-chan common.NetworkMessage

func (*MemoryNetwork) Send 

func (p *MemoryNetwork) Send(mt common.MessageType, b []byte) (err error)

func (*MemoryNetwork) SetLocalNode 

func (p *MemoryNetwork) SetLocalNode(localNode *node.LocalNode)

func (*MemoryNetwork) SetMessageBroker 

func (p *MemoryNetwork) SetMessageBroker(mb MessageBroker)

func (*MemoryNetwork) Start 

func (p *MemoryNetwork) Start() error

func (*MemoryNetwork) Stop 

func (p *MemoryNetwork) Stop()

type MemoryTransportClient 

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

func NewMemoryNetworkClient 

func NewMemoryNetworkClient(endpoint *common.Endpoint, server *MemoryNetwork) *MemoryTransportClient

func (*MemoryTransportClient) Connect 

func (m *MemoryTransportClient) Connect(node node.Node) (b []byte, err error)

func (*MemoryTransportClient) Endpoint 

func (m *MemoryTransportClient) Endpoint() *common.Endpoint

func (*MemoryTransportClient) GetBallots 

func (m *MemoryTransportClient) GetBallots() ([]byte, error)

func (*MemoryTransportClient) GetNodeInfo 

func (m *MemoryTransportClient) GetNodeInfo() ([]byte, error)

func (*MemoryTransportClient) GetTransactions 

func (m *MemoryTransportClient) GetTransactions([]string) ([]byte, error)

func (*MemoryTransportClient) SendBallot 

func (m *MemoryTransportClient) SendBallot(message interface{}) (body []byte, err error)

func (*MemoryTransportClient) SendDiscovery 

func (m *MemoryTransportClient) SendDiscovery(message interface{}) (body []byte, err error)

func (*MemoryTransportClient) SendMessage 

func (m *MemoryTransportClient) SendMessage(message interface{}) (body []byte, err error)

func (*MemoryTransportClient) SendTransaction 

func (m *MemoryTransportClient) SendTransaction(message interface{}) (body []byte, err error)

type MessageBroker 

type MessageBroker interface {
	Response(io.Writer, []byte) error
	Receive(common.NetworkMessage)
}

type Network 

type Network interface {
	Endpoint() *common.Endpoint
	GetClient(endpoint *common.Endpoint) NetworkClient
	AddHandler(string, http.HandlerFunc) *mux.Route
	AddMiddleware(string, ...mux.MiddlewareFunc) error

	// Starts network handling
	// Blocks until finished, either because of an error
	// or because `Stop` was called
	Start() error
	Stop()
	SetMessageBroker(MessageBroker)
	MessageBroker() MessageBroker
	Ready() error
	IsReady() bool

	ReceiveChannel() chan common.NetworkMessage
	ReceiveMessage() <-chan common.NetworkMessage
}

type NetworkClient 

type NetworkClient interface {
	Endpoint() *common.Endpoint

	Connect(node node.Node) ([]byte, error)
	GetNodeInfo() ([]byte, error)
	SendMessage(interface{}) ([]byte, error)
	SendTransaction(interface{}) ([]byte, error)
	SendBallot(interface{}) ([]byte, error)
	SendDiscovery(interface{}) ([]byte, error)
	GetTransactions([]string) ([]byte, error)
	GetBallots() ([]byte, error)
}

type ValidatorConnectionManager 

type ValidatorConnectionManager struct {
	sync.RWMutex
	// contains filtered or unexported fields
}

func (*ValidatorConnectionManager) AllConnected 

func (c *ValidatorConnectionManager) AllConnected() []string

func (*ValidatorConnectionManager) AllValidators 

func (c *ValidatorConnectionManager) AllValidators() []string

Returns: 

A list of all validators

func (*ValidatorConnectionManager) Broadcast 

func (c *ValidatorConnectionManager) Broadcast(message common.Message)

func (*ValidatorConnectionManager) CountConnected 

func (c *ValidatorConnectionManager) CountConnected() int

Returns: 

the number of validators which are currently connected

func (*ValidatorConnectionManager) Discovery 

func (c *ValidatorConnectionManager) Discovery(dm DiscoveryMessage) error

func (*ValidatorConnectionManager) GetConnection 

func (c *ValidatorConnectionManager) GetConnection(address string) (client NetworkClient)

func (*ValidatorConnectionManager) GetConnectionByEndpoint 

func (c *ValidatorConnectionManager) GetConnectionByEndpoint(endpoint *common.Endpoint) (client NetworkClient)

func (*ValidatorConnectionManager) IsReady 

func (c *ValidatorConnectionManager) IsReady() bool

func (*ValidatorConnectionManager) Start 

func (c *ValidatorConnectionManager) Start()

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