Package io.vertx.ext.web.handler
Interface SessionHandler
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- All Superinterfaces:
Handler<RoutingContext>
,PlatformHandler
public interface SessionHandler extends PlatformHandler
A handler that maintains aSession
for each browser session.It looks up the session for each request based on a session cookie which contains a session ID. It stores the session when the response is ended in the session store.
The session is available on the routing context with
RoutingContext.session()
.- Author:
- Tim Fox
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Field Summary
Fields Modifier and Type Field Description static boolean
DEFAULT_COOKIE_HTTP_ONLY_FLAG
Default of whether the cookie has the HttpOnly flag set More info: https://www.owasp.org/index.php/HttpOnlystatic boolean
DEFAULT_COOKIE_SECURE_FLAG
Default of whether the cookie has the 'secure' flag set to allow transmission over https only.static boolean
DEFAULT_LAZY_SESSION
Default of whether the session should be created lazily.static boolean
DEFAULT_NAG_HTTPS
Default of whether a nagging log warning should be written if the session handler is accessed over HTTP, not HTTPSstatic String
DEFAULT_SESSION_COOKIE_NAME
Default name of session cookiestatic String
DEFAULT_SESSION_COOKIE_PATH
Default path of session cookiestatic long
DEFAULT_SESSION_TIMEOUT
Default time, in ms, that a session lasts for without being accessed before expiring.static int
DEFAULT_SESSIONID_MIN_LENGTH
Default min length for a session id.
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Method Summary
All Methods Static Methods Instance Methods Abstract Methods Default Methods Modifier and Type Method Description static SessionHandler
create(SessionStore sessionStore)
Create a session handlerdefault Future<Void>
flush(RoutingContext ctx)
Flush a context session earlier to the store, this will allow the end user to have full control on the event of a failure at the store level.Future<Void>
flush(RoutingContext ctx, boolean ignoreStatus)
Flush a context session earlier to the store, this will allow the end user to have full control on the event of a failure at the store level.Session
newSession(RoutingContext context)
Create a new sessionSessionHandler
setCookieHttpOnlyFlag(boolean httpOnly)
Sets whether the 'HttpOnly' flag should be set for the session cookie.SessionHandler
setCookieless(boolean cookieless)
Use sessions based on url paths instead of cookies.SessionHandler
setCookieMaxAge(long cookieMaxAge)
Set a Cookie max-age to the session cookie.SessionHandler
setCookieSameSite(CookieSameSite policy)
Set the session cookie SameSite policy to use.SessionHandler
setCookieSecureFlag(boolean secure)
Sets whether the 'secure' flag should be set for the session cookie.SessionHandler
setLazySession(boolean lazySession)
Use a lazy session creation mechanism.SessionHandler
setMinLength(int minLength)
Set expected session id minimum length.SessionHandler
setNagHttps(boolean nag)
Set whether a nagging log warning should be written if the session handler is accessed over HTTP, not HTTPSSessionHandler
setSessionCookieName(String sessionCookieName)
Set the session cookie nameSessionHandler
setSessionCookiePath(String sessionCookiePath)
Set the session cookie pathSessionHandler
setSessionTimeout(long timeout)
Set the session timeoutSessionHandler
setSigningSecret(String secret)
Set signing secret for the session cookie.Future<Void>
setUser(RoutingContext context, User user)
Set the user for the session
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Field Detail
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DEFAULT_SESSION_COOKIE_NAME
static final String DEFAULT_SESSION_COOKIE_NAME
Default name of session cookie- See Also:
- Constant Field Values
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DEFAULT_SESSION_COOKIE_PATH
static final String DEFAULT_SESSION_COOKIE_PATH
Default path of session cookie- See Also:
- Constant Field Values
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DEFAULT_SESSION_TIMEOUT
static final long DEFAULT_SESSION_TIMEOUT
Default time, in ms, that a session lasts for without being accessed before expiring.- See Also:
- Constant Field Values
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DEFAULT_NAG_HTTPS
static final boolean DEFAULT_NAG_HTTPS
Default of whether a nagging log warning should be written if the session handler is accessed over HTTP, not HTTPS- See Also:
- Constant Field Values
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DEFAULT_COOKIE_HTTP_ONLY_FLAG
static final boolean DEFAULT_COOKIE_HTTP_ONLY_FLAG
Default of whether the cookie has the HttpOnly flag set More info: https://www.owasp.org/index.php/HttpOnly- See Also:
- Constant Field Values
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DEFAULT_COOKIE_SECURE_FLAG
static final boolean DEFAULT_COOKIE_SECURE_FLAG
Default of whether the cookie has the 'secure' flag set to allow transmission over https only. More info: https://www.owasp.org/index.php/SecureFlag- See Also:
- Constant Field Values
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DEFAULT_SESSIONID_MIN_LENGTH
static final int DEFAULT_SESSIONID_MIN_LENGTH
Default min length for a session id. More info: https://www.owasp.org/index.php/Session_Management_Cheat_Sheet- See Also:
- Constant Field Values
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DEFAULT_LAZY_SESSION
static final boolean DEFAULT_LAZY_SESSION
Default of whether the session should be created lazily.- See Also:
- Constant Field Values
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Method Detail
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create
static SessionHandler create(SessionStore sessionStore)
Create a session handler- Parameters:
sessionStore
- the session store- Returns:
- the handler
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setSessionTimeout
SessionHandler setSessionTimeout(long timeout)
Set the session timeout- Parameters:
timeout
- the timeout, in ms.- Returns:
- a reference to this, so the API can be used fluently
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setNagHttps
SessionHandler setNagHttps(boolean nag)
Set whether a nagging log warning should be written if the session handler is accessed over HTTP, not HTTPS- Parameters:
nag
- true to nag- Returns:
- a reference to this, so the API can be used fluently
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setCookieSecureFlag
SessionHandler setCookieSecureFlag(boolean secure)
Sets whether the 'secure' flag should be set for the session cookie. When set this flag instructs browsers to only send the cookie over HTTPS. Note that this will probably stop your sessions working if used without HTTPS (e.g. in development).- Parameters:
secure
- true to set the secure flag on the cookie- Returns:
- a reference to this, so the API can be used fluently
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setCookieHttpOnlyFlag
SessionHandler setCookieHttpOnlyFlag(boolean httpOnly)
Sets whether the 'HttpOnly' flag should be set for the session cookie. When set this flag instructs browsers to prevent Javascript access to the the cookie. Used as a line of defence against the most common XSS attacks.- Parameters:
httpOnly
- true to set the HttpOnly flag on the cookie- Returns:
- a reference to this, so the API can be used fluently
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setSessionCookieName
SessionHandler setSessionCookieName(String sessionCookieName)
Set the session cookie name- Parameters:
sessionCookieName
- the session cookie name- Returns:
- a reference to this, so the API can be used fluently
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setSessionCookiePath
SessionHandler setSessionCookiePath(String sessionCookiePath)
Set the session cookie path- Parameters:
sessionCookiePath
- the session cookie path- Returns:
- a reference to this, so the API can be used fluently
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setMinLength
SessionHandler setMinLength(int minLength)
Set expected session id minimum length.- Parameters:
minLength
- the session id minimal length- Returns:
- a reference to this, so the API can be used fluently
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setCookieSameSite
SessionHandler setCookieSameSite(CookieSameSite policy)
Set the session cookie SameSite policy to use.- Parameters:
policy
- to use,null
for no policy.- Returns:
- a reference to this, so the API can be used fluently
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setLazySession
SessionHandler setLazySession(boolean lazySession)
Use a lazy session creation mechanism. The session will only be created when accessed from the context. Thus the session cookie is set only if the session was accessed.- Parameters:
lazySession
- true to have a lazy session creation.- Returns:
- a reference to this, so the API can be used fluently
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setCookieMaxAge
SessionHandler setCookieMaxAge(long cookieMaxAge)
Set a Cookie max-age to the session cookie. When doing this the Cookie will be persistent across browser restarts. This can be dangerous as closing a browser windows does not invalidate the session. For more information refer to https://cheatsheetseries.owasp.org/cheatsheets/Session_Management_Cheat_Sheet.html#Expire_and_Max-Age_Attributes- Parameters:
cookieMaxAge
- a non negative max-age, note that 0 means expire now.- Returns:
- a reference to this, so the API can be used fluently
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flush
default Future<Void> flush(RoutingContext ctx)
Flush a context session earlier to the store, this will allow the end user to have full control on the event of a failure at the store level. Once a session is flushed no automatic save will be performed at end of request.- Parameters:
ctx
- the current context- Returns:
- a future signaled with the asynchronous response.
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flush
Future<Void> flush(RoutingContext ctx, boolean ignoreStatus)
Flush a context session earlier to the store, this will allow the end user to have full control on the event of a failure at the store level. Once a session is flushed no automatic save will be performed at end of request.- Parameters:
ctx
- the current contextignoreStatus
- flush regardless of response status code- Returns:
- a future signaled with the asynchronous response.
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setCookieless
SessionHandler setCookieless(boolean cookieless)
Use sessions based on url paths instead of cookies. This is an potential less safe alternative to cookies but offers an alternative when Cookies are not desired, for example, to avoid showing banners on a website due to cookie laws, or doing machine to machine operations where state is required to maintain.- Parameters:
cookieless
- true if a cookieless session should be used- Returns:
- a reference to this, so the API can be used fluently
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newSession
Session newSession(RoutingContext context)
Create a new session- Parameters:
context
- the routing context- Returns:
- the session
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setUser
Future<Void> setUser(RoutingContext context, User user)
Set the user for the session- Parameters:
context
- the routing contextuser
- the user- Returns:
- future that will be called when complete, or a failure
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setSigningSecret
SessionHandler setSigningSecret(String secret)
Set signing secret for the session cookie. The cookie will not be signed and verified by the SessionHandler if this is not set. But may be signed by the session implementation, for example, CookieSessionStore signs the cookie data.- Parameters:
secret
- the secret used to sign the session cookie data- Returns:
- a reference to this, so the API can be used fluently
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