middleware

package
v1.7.18 Latest Latest
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 Go to latest Published: Aug 17, 2024 License: Apache-2.0 Imports: 31 Imported by: 89

Documentation

Index

Constants

This section is empty.

Variables

View Source 
var (
	// DefaultCSRFConfig is the default CSRF middleware config.
	DefaultCSRFConfig = CSRFConfig{
		Skipper:     echo.DefaultSkipper,
		TokenLength: 32,
		TokenLookup: "header:" + echo.HeaderXCSRFToken,
		ContextKey:  "csrf",
		SessionName: "_csrf",
	}
	ErrCSRFTokenInvalid        = errors.New("csrf token is invalid")
	ErrCSRFTokenIsEmpty        = errors.New("empty csrf token")
	ErrCSRFTokenIsEmptyInForm  = fmt.Errorf("%w in form param", ErrCSRFTokenIsEmpty)
	ErrCSRFTokenIsEmptyInQuery = fmt.Errorf("%w in query param", ErrCSRFTokenIsEmpty)
)
View Source 
var (

	// DefaultProxyConfig is the default Proxy middleware config.
	DefaultProxyConfig = ProxyConfig{
		Skipper:    echo.DefaultSkipper,
		Handler:    DefaultProxyHandler,
		Rewrite:    DefaultRewriteConfig,
		ContextKey: "target",
	}
	// DefaultProxyHandler Proxy Handler
	DefaultProxyHandler ProxyHandler = func(t ProxyTargeter, c echo.Context) error {
		var key string
		switch {
		case c.IsWebsocket():
			key = `raw`
		case c.Header(echo.HeaderAccept) == echo.MIMEEventStream:
			key = `sse`
		default:
			key = `default`
		}
		if h, ok := DefaultProxyHandlers[key]; ok {
			resp := c.Response().StdResponseWriter()
			req := c.Request().StdRequest()
			h(t, c).ServeHTTP(resp, req)
		}
		return nil
	}

	// DefaultProxyHandlers default preset handlers
	DefaultProxyHandlers = map[string]func(ProxyTargeter, echo.Context) http.Handler{
		`raw`: func(t ProxyTargeter, c echo.Context) http.Handler {
			return proxyRaw(t, c)
		},
		`sse`: func(t ProxyTargeter, c echo.Context) http.Handler {
			return proxyHTTPWithFlushInterval(t, c)
		},
		`default`: func(t ProxyTargeter, c echo.Context) http.Handler {
			return proxyHTTP(t, c)
		},
	}
)
View Source 
var (
	// ErrQueueTimeout is thrown when the request waits more than QueueTimeout to be queued
	ErrQueueTimeout = echo.NewHTTPError(http.StatusTooManyRequests, "queue limit reached")
	// ErrWorkerTimeout is thrown when the request waits more than WorkerTimeout for a worker to start processing it
	ErrWorkerTimeout = echo.NewHTTPError(http.StatusRequestTimeout, "request took too long to process")
)

errors

View Source 
var (
	// DefaultCORSConfig is the default CORS middleware config.
	DefaultCORSConfig = CORSConfig{
		Skipper:      echo.DefaultSkipper,
		AllowOrigins: []string{"*"},
		AllowMethods: []string{echo.GET, echo.HEAD, echo.PUT, echo.POST, echo.DELETE},
	}
)
View Source 
var (
	// DefaultGzipConfig is the default Gzip middleware config.
	DefaultGzipConfig = &GzipConfig{
		Skipper: echo.DefaultSkipper,
		Level:   -1,
	}
)
View Source 
var (
	// DefaultKeyAuthConfig is the default KeyAuth middleware config.
	DefaultKeyAuthConfig = KeyAuthConfig{
		Skipper:    echo.DefaultSkipper,
		KeyLookup:  "header:" + echo.HeaderAuthorization,
		AuthScheme: "Bearer",
	}
)
View Source 
var DefaultLogWriter = GetDefaultLogWriter()
View Source 
var (
	// DefaultMethodOverrideConfig is the default MethodOverride middleware config.
	DefaultMethodOverrideConfig = MethodOverrideConfig{
		Skipper: echo.DefaultSkipper,
		Getter:  MethodFromHeader(echo.HeaderXHTTPMethodOverride),
	}
)
View Source 
var DefaultProxyHTTPDirector = func(target *url.URL, c echo.Context) func(req *http.Request) {
	targetQuery := target.RawQuery
	return func(req *http.Request) {
		if req.Body == nil {
			req.Body = c.Request().Body()
		}
		req.URL.Scheme = target.Scheme
		req.URL.Host = target.Host
		req.URL.Path, req.URL.RawPath = joinURLPath(target, req.URL)
		if targetQuery == "" || req.URL.RawQuery == "" {
			req.URL.RawQuery = targetQuery + req.URL.RawQuery
		} else {
			req.URL.RawQuery = targetQuery + "&" + req.URL.RawQuery
		}
		if _, ok := req.Header["User-Agent"]; !ok {

			req.Header.Set("User-Agent", "")
		}
	}
}

DefaultProxyHTTPDirector default director

View Source 
var DefaultQueueConfig = QueueConfig{
	Skipper:       echo.DefaultSkipper,
	QueueSize:     100,
	Workers:       runtime.GOMAXPROCS(0),
	QueueTimeout:  30 * time.Second,
	WorkerTimeout: 10 * time.Second,
}

DefaultQueueConfig defines default values for QueueConfig

View Source 
var (
	// DefaultRecoverConfig is the default Recover middleware config.
	DefaultRecoverConfig = RecoverConfig{
		Skipper:           echo.DefaultSkipper,
		StackSize:         4 << 10,
		DisableStackAll:   false,
		DisablePrintStack: false,
	}
)
View Source 
var DefaultRedirectConfig = RedirectConfig{
	Skipper: echo.DefaultSkipper,
	Code:    http.StatusMovedPermanently,
}

DefaultRedirectConfig is the default Redirect middleware config.

View Source 
var (
	// DefaultRequestIDConfig is the default RequestID middleware config.
	DefaultRequestIDConfig = RequestIDConfig{
		Skipper:   echo.DefaultSkipper,
		Generator: generator,
	}
)
View Source 
var (
	// DefaultRewriteConfig is the default Rewrite middleware config.
	DefaultRewriteConfig = RewriteConfig{
		Skipper: echo.DefaultSkipper,
	}
)
View Source 
var (
	// DefaultSecureConfig is the default Secure middleware config.
	DefaultSecureConfig = SecureConfig{
		Skipper:            echo.DefaultSkipper,
		XSSProtection:      "1; mode=block",
		ContentTypeNosniff: "nosniff",
		XFrameOptions:      "SAMEORIGIN",
	}
)
View Source 
var (
	// DefaultTrailingSlashConfig is the default TrailingSlash middleware config.
	DefaultTrailingSlashConfig = TrailingSlashConfig{
		Skipper: echo.DefaultSkipper,
	}
)
View Source 
var ListDirTemplate = `` /* 621-byte string literal not displayed */

Functions

func AddTrailingSlash 

func AddTrailingSlash() echo.MiddlewareFuncd

AddTrailingSlash returns a root level (before router) middleware which adds a trailing slash to the request `URL#Path`.

Usage `Echo#Pre(AddTrailingSlash())`

func AddTrailingSlashWithConfig 

func AddTrailingSlashWithConfig(config TrailingSlashConfig) echo.MiddlewareFuncd

AddTrailingSlashWithConfig returns a AddTrailingSlash middleware with config. See `AddTrailingSlash()`.

func BasicAuth 

func BasicAuth(fn BasicValidateFunc, skipper ...echo.Skipper) echo.MiddlewareFunc

BasicAuth returns an HTTP basic authentication middleware.

For valid credentials it calls the next handler. For invalid credentials, it sends "401 - Unauthorized" response.

func BodyLimit 

func BodyLimit(limit string) echo.MiddlewareFunc

BodyLimit returns a body limit middleware.

BodyLimit middleware sets the maximum allowed size for a request body, if the size exceeds the configured limit, it sends "413 - Request Entity Too Large" response. The body limit is determined based on both `Content-Length` request header and actual content read, which makes it super secure. Limit can be specified as `4x` or `4xB`, where x is one of the multiple from K, M, G, T or P.

func BodyLimitWithConfig 

func BodyLimitWithConfig(config BodyLimitConfig) echo.MiddlewareFunc

BodyLimitWithConfig returns a body limit middleware from config. See: `BodyLimit()`.

func CORS 

func CORS() echo.MiddlewareFunc

CORS returns a cross-origin HTTP request (CORS) middleware. See https://developer.mozilla.org/en/docs/Web/HTTP/Access_control_CORS

func CORSWithConfig 

func CORSWithConfig(config CORSConfig) echo.MiddlewareFunc

CORSFromConfig returns a CORS middleware from config. See `CORS()`.

func CSRF 

func CSRF() echo.MiddlewareFuncd

CSRF returns a Cross-Site Request Forgery (CSRF) middleware. See: https://en.wikipedia.org/wiki/Cross-site_request_forgery

func CSRFWithConfig 

func CSRFWithConfig(config CSRFConfig) echo.MiddlewareFuncd

CSRFWithConfig returns a CSRF middleware with config. See `CSRF()`.

func FuncMap 

func FuncMap(funcMap map[string]interface{}, skipper ...echo.Skipper) echo.MiddlewareFunc

func GetDefaultLogWriter added in v1.5.0 

func GetDefaultLogWriter() io.Writer

func Gzip 

func Gzip(config ...*GzipConfig) echo.MiddlewareFunc

Gzip returns a middleware which compresses HTTP response using gzip compression scheme.

func GzipWithConfig 

func GzipWithConfig(config *GzipConfig) echo.MiddlewareFunc

GzipWithConfig return Gzip middleware with config. See: `Gzip()`.

func HTTPSNonWWWRedirect added in v1.3.7 

func HTTPSNonWWWRedirect() echo.MiddlewareFunc

HTTPSNonWWWRedirect redirects http requests to https non www. For example, http://www.labstack.com will be redirect to https://labstack.com.

Usage `Echo#Pre(HTTPSNonWWWRedirect())`

func HTTPSNonWWWRedirectWithConfig added in v1.3.7 

func HTTPSNonWWWRedirectWithConfig(config RedirectConfig) echo.MiddlewareFunc

HTTPSNonWWWRedirectWithConfig returns an HTTPSRedirect middleware with config. See `HTTPSNonWWWRedirect()`.

func HTTPSRedirect 

func HTTPSRedirect() echo.MiddlewareFunc

HTTPSRedirect redirects http requests to https. For example, http://labstack.com will be redirect to https://labstack.com.

Usage `Echo#Pre(HTTPSRedirect())`

func HTTPSRedirectWithConfig 

func HTTPSRedirectWithConfig(config RedirectConfig) echo.MiddlewareFunc

HTTPSRedirectWithConfig returns an HTTPSRedirect middleware with config. See `HTTPSRedirect()`.

func HTTPSWWWRedirect 

func HTTPSWWWRedirect() echo.MiddlewareFunc

HTTPSWWWRedirect redirects http requests to https www. For example, http://labstack.com will be redirect to https://www.labstack.com.

Usage `Echo#Pre(HTTPSWWWRedirect())`

func HTTPSWWWRedirectWithConfig 

func HTTPSWWWRedirectWithConfig(config RedirectConfig) echo.MiddlewareFunc

HTTPSWWWRedirectWithConfig returns an HTTPSRedirect middleware with config. See `HTTPSWWWRedirect()`.

func KeyAuth added in v1.3.5 

func KeyAuth(fn KeyAuthValidator) echo.MiddlewareFuncd

KeyAuth returns an KeyAuth middleware.

For valid key it calls the next handler. For invalid key, it sends "401 - Unauthorized" response. For missing key, it sends "400 - Bad Request" response.

func KeyAuthWithConfig added in v1.3.5 

func KeyAuthWithConfig(config KeyAuthConfig) echo.MiddlewareFuncd

KeyAuthWithConfig returns an KeyAuth middleware with config. See `KeyAuth()`.

func Log 

func Log(recv ...func(*VisitorInfo)) echo.MiddlewareFunc

func LogWithConfig added in v1.7.11 

func LogWithConfig(config LogConfig) echo.MiddlewareFunc

func LogWithWriter added in v1.5.0 

func LogWithWriter(writer io.Writer, recv ...func(*VisitorInfo)) echo.MiddlewareFunc

func MaxAllowed 

func MaxAllowed(n int) echo.MiddlewareFunc

MaxAllowed limits simultaneous requests; can help with high traffic load

func MethodOverride 

func MethodOverride() echo.MiddlewareFuncd

MethodOverride returns a MethodOverride middleware. MethodOverride middleware checks for the overridden method from the request and uses it instead of the original method.

For security reasons, only `POST` method can be overridden.

func MethodOverrideWithConfig 

func MethodOverrideWithConfig(config MethodOverrideConfig) echo.MiddlewareFuncd

MethodOverrideWithConfig returns a MethodOverride middleware with config. See: `MethodOverride()`.

func NeedQuoteMeta added in v1.7.4 

func NeedQuoteMeta(r rune) bool

func NoCache added in v1.1.0 

func NoCache(skippers ...echo.Skipper) echo.MiddlewareFuncd

NoCache is a simple piece of middleware that sets a number of HTTP headers to prevent a router (or subrouter) from being cached by an upstream proxy and/or client.

As per http://wiki.nginx.org/HttpProxyModule - NoCache sets: 

Expires: Thu, 01 Jan 1970 00:00:00 UTC
Cache-Control: no-cache, private, max-age=0
X-Accel-Expires: 0
Pragma: no-cache (for HTTP/1.0 proxies/clients)

func NonWWWRedirect 

func NonWWWRedirect() echo.MiddlewareFunc

NonWWWRedirect redirects www requests to non www. For example, http://www.labstack.com will be redirect to http://labstack.com.

Usage `Echo#Pre(NonWWWRedirect())`

func NonWWWRedirectWithConfig 

func NonWWWRedirectWithConfig(config RedirectConfig) echo.MiddlewareFunc

NonWWWRedirectWithConfig returns an HTTPSRedirect middleware with config. See `NonWWWRedirect()`.

func Proxy added in v1.3.5 

func Proxy(balancer ProxyBalancer) echo.MiddlewareFuncd

Proxy returns a Proxy middleware.

Proxy middleware forwards the request to upstream server using a configured load balancing technique.

func ProxyHTTPCustomHandler added in v1.6.0 

func ProxyHTTPCustomHandler(t ProxyTargeter, c echo.Context) http.Handler

ProxyHTTPCustomHandler 自定义处理(支持传递body)

func ProxyWithConfig added in v1.3.5 

func ProxyWithConfig(config ProxyConfig) echo.MiddlewareFuncd

ProxyWithConfig returns a Proxy middleware with config. See: `Proxy()`

func QueryParamToRegexpRule added in v1.6.0 

func QueryParamToRegexpRule(query string, disableColonParam bool) (pathRegexp string, newPath string, regexpRules []string, namedRules map[string]string)

func Queue added in v1.6.0 

func Queue() echo.MiddlewareFunc

Queue returns a queue middleware 

e := echo.New()
e.GET("/queue", func(c echo.Context) error {
	return c.String(http.StatusOK, "test")
}, middleware.Queue())

func QueueWithConfig added in v1.6.0 

func QueueWithConfig(config QueueConfig) echo.MiddlewareFunc

QueueWithConfig returns a queue middleware 

e := echo.New()
config := middleware.QueueConfig{
	Skipper: DefaultSkipper,
	QueueSize:     2,
	Workers:       1,
	QueueTimeout:  20 * time.Second,
	WorkerTimeout: 10 * time.Second,
}
e.GET("/queue", func(c echo.Context) error {
	return c.String(http.StatusOK, "test")
}, middleware.QueueWithConfig(config))

func Recover 

func Recover() echo.Middleware

Recover returns a middleware which recovers from panics anywhere in the chain and handles the control to the centralized HTTPErrorHandler.

func RecoverWithConfig added in v1.1.0 

func RecoverWithConfig(config RecoverConfig) echo.MiddlewareFunc

RecoverWithConfig returns a Recover middleware with config. See: `Recover()`.

func ReleaseVisitorInfo added in v1.6.0 

func ReleaseVisitorInfo(v *VisitorInfo)

func RemoveTrailingSlash 

func RemoveTrailingSlash() echo.MiddlewareFuncd

RemoveTrailingSlash returns a root level (before router) middleware which removes a trailing slash from the request URI.

Usage `Echo#Pre(RemoveTrailingSlash())`

func RemoveTrailingSlashWithConfig 

func RemoveTrailingSlashWithConfig(config TrailingSlashConfig) echo.MiddlewareFuncd

RemoveTrailingSlashWithConfig returns a RemoveTrailingSlash middleware with config. See `RemoveTrailingSlash()`.

func RequestID added in v1.6.0 

func RequestID() echo.MiddlewareFuncd

RequestID returns a X-Request-ID middleware.

func RequestIDWithConfig added in v1.6.0 

func RequestIDWithConfig(config RequestIDConfig) echo.MiddlewareFuncd

RequestIDWithConfig returns a X-Request-ID middleware with config.

func Rewrite added in v1.3.5 

func Rewrite(rules map[string]string) echo.MiddlewareFuncd

Rewrite returns a Rewrite middleware.

Rewrite middleware rewrites the URL path based on the provided rules.

func RewriteWithConfig added in v1.3.5 

func RewriteWithConfig(config RewriteConfig) echo.MiddlewareFuncd

RewriteWithConfig returns a Rewrite middleware with config. See: `Rewrite()`.

func Secure 

func Secure() echo.MiddlewareFuncd

Secure returns a Secure middleware. Secure middleware provides protection against cross-site scripting (XSS) attack, content type sniffing, clickjacking, insecure connection and other code injection attacks.

func SecureWithConfig 

func SecureWithConfig(config SecureConfig) echo.MiddlewareFuncd

SecureWithConfig returns a Secure middleware with config. See: `Secure()`.

func SetNoCacheHeader added in v1.1.0 

func SetNoCacheHeader(c echo.Context)

func Static 

func Static(options ...*StaticOptions) echo.MiddlewareFunc

func UnrewriteWithConfig added in v1.6.0 

func UnrewriteWithConfig(config RewriteConfig) echo.MiddlewareFuncd

func Validate added in v1.2.0 

func Validate(generator func() echo.Validator, skipper ...echo.Skipper) echo.MiddlewareFunc

func ValidateRewriteRule added in v1.6.0 

func ValidateRewriteRule(urlPath, newPath string, disableParam bool) error

func WWWRedirect 

func WWWRedirect() echo.MiddlewareFunc

WWWRedirect redirects non www requests to www. For example, http://labstack.com will be redirect to http://www.labstack.com.

Usage `Echo#Pre(WWWRedirect())`

func WWWRedirectWithConfig 

func WWWRedirectWithConfig(config RedirectConfig) echo.MiddlewareFunc

WWWRedirectWithConfig returns an HTTPSRedirect middleware with config. See `WWWRedirect()`.

Types

type BasicValidateFunc 

type BasicValidateFunc func(string, string) bool

type BodyLimitConfig 

type BodyLimitConfig struct {
	// Skipper defines a function to skip middleware.
	Skipper echo.Skipper `json:"-"`

	// Maximum allowed size for a request body, it can be specified
	// as `4x` or `4xB`, where x is one of the multiple from K, M, G, T or P.
	Limit string `json:"limit"`
	// contains filtered or unexported fields
}

BodyLimitConfig defines the config for body limit middleware.

type CORSConfig 

type CORSConfig struct {
	// Skipper defines a function to skip middleware.
	Skipper echo.Skipper

	// AllowOrigin defines a list of origins that may access the resource.
	// Optional with default value as []string{"*"}.
	AllowOrigins []string

	// AllowMethods defines a list methods allowed when accessing the resource.
	// This is used in response to a preflight request.
	// Optional with default value as `DefaultCORSConfig.AllowMethods`.
	AllowMethods []string

	// AllowHeaders defines a list of request headers that can be used when
	// making the actual request. This in response to a preflight request.
	// Optional with default value as []string{}.
	AllowHeaders []string

	// AllowCredentials indicates whether or not the response to the request
	// can be exposed when the credentials flag is true. When used as part of
	// a response to a preflight request, this indicates whether or not the
	// actual request can be made using credentials.
	// Optional with default value as false.
	AllowCredentials bool

	// ExposeHeaders defines a whitelist headers that clients are allowed to
	// access.
	// Optional with default value as []string{}.
	ExposeHeaders []string

	// MaxAge indicates how long (in seconds) the results of a preflight request
	// can be cached.
	// Optional with default value as 0.
	MaxAge int
}

CORSConfig defines the config for CORS middleware.

type CSRFConfig 

type CSRFConfig struct {
	// Skipper defines a function to skip middleware.
	Skipper echo.Skipper `json:"-"`

	// TokenLength is the length of the generated token.
	TokenLength uint8 `json:"token_length"`

	// TokenLookup is a string in the form of "<source>:<key>" that is used
	// to extract token from the request.
	// Optional. Default value "header:X-CSRF-Token".
	// Possible values:
	// - "header:<name>"
	// - "form:<name>"
	// - "query:<name>"
	TokenLookup string `json:"token_lookup"`

	// Context key to store generated CSRF token into context.
	// Optional. Default value "csrf".
	ContextKey string `json:"context_key"`

	// Name of the CSRF session. This session will store CSRF token.
	// Optional. Default value "_csrf".
	SessionName string `json:"session_name"`
}

CSRFConfig defines the config for CSRF middleware.

type GzipConfig 

type GzipConfig struct {
	// Skipper defines a function to skip middleware.
	Skipper echo.Skipper `json:"-"`

	// Gzip compression level.
	// Optional. Default value -1.
	Level int `json:"level"`
}

GzipConfig defines the config for Gzip middleware.

type KeyAuthConfig added in v1.3.5 

type KeyAuthConfig struct {
	// Skipper defines a function to skip middleware.
	Skipper echo.Skipper

	// KeyLookup is a string in the form of "<source>:<name>" that is used
	// to extract key from the request.
	// Optional. Default value "header:Authorization".
	// Possible values:
	// - "header:<name>"
	// - "query:<name>"
	// - "form:<name>"
	KeyLookup string `yaml:"key_lookup"`

	// AuthScheme to be used in the Authorization header.
	// Optional. Default value "Bearer".
	AuthScheme string

	// Validator is a function to validate key.
	// Required.
	Validator KeyAuthValidator
}

KeyAuthConfig defines the config for KeyAuth middleware.

type KeyAuthValidator added in v1.3.5 

type KeyAuthValidator func(string, echo.Context) (bool, error)

KeyAuthValidator defines a function to validate KeyAuth credentials.

type LogConfig added in v1.7.11 

type LogConfig struct {
	// Skipper defines a function to skip middleware.
	Skipper echo.Skipper       `json:"-"`
	Writer  io.Writer          `json:"-"`
	Execute func(*VisitorInfo) `json:"-"`
}

type MethodOverrideConfig 

type MethodOverrideConfig struct {
	// Skipper defines a function to skip middleware.
	Skipper echo.Skipper

	// Getter is a function that gets overridden method from the request.
	// Optional. Default values MethodFromHeader(echo.HeaderXHTTPMethodOverride).
	Getter MethodOverrideGetter
}

MethodOverrideConfig defines the config for MethodOverride middleware.

type MethodOverrideGetter 

type MethodOverrideGetter func(echo.Context) string

MethodOverrideGetter is a function that gets overridden method from the request

func MethodFromForm 

func MethodFromForm(param string) MethodOverrideGetter

MethodFromForm is a `MethodOverrideGetter` that gets overridden method from the form parameter.

func MethodFromHeader 

func MethodFromHeader(header string) MethodOverrideGetter

MethodFromHeader is a `MethodOverrideGetter` that gets overridden method from the request header.

func MethodFromQuery 

func MethodFromQuery(param string) MethodOverrideGetter

MethodFromQuery is a `MethodOverrideGetter` that gets overridden method from the query parameter.

type ProxyBalancer added in v1.3.5 

type ProxyBalancer interface {
	AddTarget(ProxyTargeter) bool
	RemoveTarget(string) bool
	Next(echo.Context) ProxyTargeter
}

ProxyBalancer defines an interface to implement a load balancing technique.

func NewRandomBalancer added in v1.3.5 

func NewRandomBalancer(targets []ProxyTargeter) ProxyBalancer

NewRandomBalancer returns a random proxy balancer.

func NewRoundRobinBalancer added in v1.3.5 

func NewRoundRobinBalancer(targets []ProxyTargeter) ProxyBalancer

NewRoundRobinBalancer returns a round-robin proxy balancer.

type ProxyConfig added in v1.3.5 

type ProxyConfig struct {
	// Skipper defines a function to skip middleware.
	Skipper echo.Skipper `json:"-"`

	// Balancer defines a load balancing technique.
	// Required.
	Balancer ProxyBalancer `json:"-"`

	Handler ProxyHandler `json:"-"`
	Rewrite RewriteConfig

	// Context key to store selected ProxyTarget into context.
	// Optional. Default value "target".
	ContextKey string
}

ProxyConfig defines the config for Proxy middleware.

type ProxyHandler added in v1.3.5 

type ProxyHandler func(t ProxyTargeter, c echo.Context) error

ProxyHandler defines an interface to implement a proxy handler.

type ProxyTarget added in v1.3.5 

type ProxyTarget struct {
	Name          string
	URL           *url.URL
	FlushInterval time.Duration
	Meta          echo.Store
}

ProxyTarget defines the upstream target.

func (*ProxyTarget) GetFlushInterval added in v1.6.0 

func (t *ProxyTarget) GetFlushInterval() time.Duration

func (*ProxyTarget) GetMeta added in v1.6.0 

func (t *ProxyTarget) GetMeta(_ echo.Context) echo.Store

func (*ProxyTarget) GetName added in v1.6.0 

func (t *ProxyTarget) GetName() string

func (*ProxyTarget) GetURL added in v1.6.0 

func (t *ProxyTarget) GetURL(_ echo.Context) *url.URL

func (*ProxyTarget) SetFlushInterval added in v1.6.0 

func (t *ProxyTarget) SetFlushInterval(interval time.Duration)

type ProxyTargeter added in v1.6.0 

type ProxyTargeter interface {
	GetName() string
	GetURL(echo.Context) *url.URL
	GetFlushInterval() time.Duration
	SetFlushInterval(time.Duration)
	GetMeta(echo.Context) echo.Store
}

type QueueConfig added in v1.6.0 

type QueueConfig struct {
	Skipper echo.Skipper

	QueueSize int
	Workers   int

	QueueTimeout  time.Duration
	WorkerTimeout time.Duration
}

QueueConfig defines the configuration for the queue

type RecoverConfig added in v1.1.0 

type RecoverConfig struct {
	// Skipper defines a function to skip middleware.
	Skipper echo.Skipper

	// Size of the stack to be printed.
	// Optional. Default value 4KB.
	StackSize int `json:"stack_size"`

	// DisableStackAll disables formatting stack traces of all other goroutines
	// into buffer after the trace for the current goroutine.
	// Optional. Default value false.
	DisableStackAll bool `json:"disable_stack_all"`

	// DisablePrintStack disables printing stack trace.
	// Optional. Default value as false.
	DisablePrintStack bool `json:"disable_print_stack"`
}

RecoverConfig defines the config for Recover middleware.

type RedirectConfig 

type RedirectConfig struct {
	// Skipper defines a function to skip middleware.
	echo.Skipper

	// Status code to be used when redirecting the request.
	// Optional. Default value http.StatusMovedPermanently.
	Code int `yaml:"code"`
}

RedirectConfig defines the config for Redirect middleware.

type RequestIDConfig added in v1.6.0 

type RequestIDConfig struct {
	// Skipper defines a function to skip middleware.
	Skipper echo.Skipper

	// Generator defines a function to generate an ID.
	// Optional. Default value random.String(32).
	Generator func() string

	// RequestIDHandler defines a function which is executed for a request id.
	RequestIDHandler func(echo.Context, string)
}

RequestIDConfig defines the config for RequestID middleware.

type RewriteConfig added in v1.3.5 

type RewriteConfig struct {
	// Skipper defines a function to skip middleware.
	Skipper echo.Skipper `json:"-"`

	// Rules defines the URL path rewrite rules. The values captured in asterisk can be
	// retrieved by index e.g. $1, $2 and so on.
	// Example:
	// "/old":              "/new",
	// "/api/*":            "/$1",
	// "/js/*":             "/public/javascripts/$1",
	// "/users/*/orders/*": "/user/$1/order/$2",
	// "/users/:id": "/user/$1",
	// "/match/<name:[0-9]+>": "/user/$1",
	// Required.
	Rules             map[string]string `json:"rules"`
	DisableColonParam bool
	// contains filtered or unexported fields
}

RewriteConfig defines the config for Rewrite middleware.

func (*RewriteConfig) Add added in v1.3.5 

func (c *RewriteConfig) Add(urlPath, newPath string) *RewriteConfig

Add rule

func (*RewriteConfig) Delete added in v1.3.5 

func (c *RewriteConfig) Delete(urlPath string) *RewriteConfig

Delete rule

func (*RewriteConfig) Init added in v1.3.5 

func (c *RewriteConfig) Init() *RewriteConfig

Init Initialize

func (*RewriteConfig) Reverse added in v1.6.0 

func (c *RewriteConfig) Reverse(urlPath string) string

Reverse url

func (*RewriteConfig) Rewrite added in v1.3.5 

func (c *RewriteConfig) Rewrite(urlPath string) string

Rewrite url

func (*RewriteConfig) Set added in v1.3.5 

func (c *RewriteConfig) Set(urlPath, newPath string) *RewriteConfig

Set rule

type RewriteRegExp added in v1.6.0 

type RewriteRegExp struct {
	Old   *regexp.Regexp
	New   *regexp.Regexp
	Named map[string]string
}

type SecureConfig 

type SecureConfig struct {
	// Skipper defines a function to skip middleware.
	Skipper echo.Skipper `json:"-"`

	// XSSProtection provides protection against cross-site scripting attack (XSS)
	// by setting the `X-XSS-Protection` header.
	// Optional. Default value "1; mode=block".
	XSSProtection string `json:"xss_protection"`

	// ContentTypeNosniff provides protection against overriding Content-Type
	// header by setting the `X-Content-Type-Options` header.
	// Optional. Default value "nosniff".
	ContentTypeNosniff string `json:"content_type_nosniff"`

	// XFrameOptions can be used to indicate whether or not a browser should
	// be allowed to render a page in a <frame>, <iframe> or <object> .
	// Sites can use this to avoid clickjacking attacks, by ensuring that their
	// content is not embedded into other sites.provides protection against
	// clickjacking.
	// Optional. Default value "SAMEORIGIN".
	// Possible values:
	// - "SAMEORIGIN" - The page can only be displayed in a frame on the same origin as the page itself.
	// - "DENY" - The page cannot be displayed in a frame, regardless of the site attempting to do so.
	// - "ALLOW-FROM uri" - The page can only be displayed in a frame on the specified origin.
	XFrameOptions string `json:"x_frame_options"`

	// HSTSMaxAge sets the `Strict-Transport-Security` header to indicate how
	// long (in seconds) browsers should remember that this site is only to
	// be accessed using HTTPS. This reduces your exposure to some SSL-stripping
	// man-in-the-middle (MITM) attacks.
	// Optional. Default value 0.
	HSTSMaxAge int `json:"hsts_max_age"`

	// HSTSExcludeSubdomains won't include subdomains tag in the `Strict Transport Security`
	// header, excluding all subdomains from security policy. It has no effect
	// unless HSTSMaxAge is set to a non-zero value.
	// Optional. Default value false.
	HSTSExcludeSubdomains bool `json:"hsts_exclude_subdomains"`

	// ContentSecurityPolicy sets the `Content-Security-Policy` header providing
	// security against cross-site scripting (XSS), clickjacking and other code
	// injection attacks resulting from execution of malicious content in the
	// trusted web page context.
	// Optional. Default value "".
	ContentSecurityPolicy string `json:"content_security_policy"`
}

SecureConfig defines the config for Secure middleware.

type StaticOptions 

type StaticOptions struct {
	// Skipper defines a function to skip middleware.
	Skipper echo.Skipper `json:"-"`

	Path       string          `json:"path"` //UrlPath
	Root       string          `json:"root"`
	Fallback   []string        `json:"fallback"`
	Index      string          `json:"index"`
	Browse     bool            `json:"browse"`
	Template   string          `json:"template"`
	Debug      bool            `json:"debug"`
	FS         http.FileSystem `json:"-"`
	MaxAge     time.Duration   `json:"maxAge"`
	TrimPrefix string          `json:"trimPrefix"`
	// contains filtered or unexported fields
}

func (*StaticOptions) AddFallback added in v1.6.0 

func (s *StaticOptions) AddFallback(fallback string) *StaticOptions

func (*StaticOptions) Init added in v1.6.0 

func (s *StaticOptions) Init() *StaticOptions

func (*StaticOptions) Middleware added in v1.6.0 

func (s *StaticOptions) Middleware() echo.MiddlewareFunc

type TrailingSlashConfig 

type TrailingSlashConfig struct {
	// Skipper defines a function to skip middleware.
	Skipper echo.Skipper `json:"-"`

	// Status code to be used when redirecting the request.
	// Optional, but when provided the request is redirected using this code.
	RedirectCode int `json:"redirect_code"`
}

TrailingSlashConfig defines the config for TrailingSlash middleware.

type VisitorInfo added in v1.1.1 

type VisitorInfo struct {
	RealIP       string
	Time         time.Time
	Elapsed      time.Duration
	Scheme       string
	Host         string
	URI          string
	Method       string
	UserAgent    string
	Referer      string
	RequestSize  int64
	ResponseSize int64
	ResponseCode int
}

func AcquireVisitorInfo added in v1.6.0 

func AcquireVisitorInfo() *VisitorInfo

func (*VisitorInfo) SetFromContext added in v1.6.0 

func (v *VisitorInfo) SetFromContext(c echo.Context)

Source Files

View all Source files

Directories

Path Synopsis
example
config
Package config provides data structure to configure rate-limiter.
 Package config provides data structure to configure rate-limiter.
test
test
Copyright 2016 Wenhui Shen <www.webx.top>
 Copyright 2016 Wenhui Shen <www.webx.top>
driver
example
jet
jet/test
manager
sse
sse/test
standard
*
 *
standard/test
engine
engine/bolt
engine/cookie
engine/file
engine/mysql
engine/mysql/test
engine/redis
test

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