PasswordReset implements LoggerAwareInterface uses LoggerAwareTrait

This class is responsible for - find the right user, sending out a reset email.

  • create a token for creating the link (not exposed outside of this class)
  • validate a hashed token
  • send out an email to initiate the password reset
  • update a password for a backend user if all parameters match
Internal

this is a concrete implementation for User/Password login and not part of public TYPO3 Core API.

Table of Contents

Interfaces

LoggerAwareInterface

Constants

MAXIMUM_RESET_ATTEMPTS  = 3
MAXIMUM_RESET_ATTEMPTS_SINCE  = '-30 minutes'
TOKEN_VALID_UNTIL  = '+2 hours'

Methods

initiateReset()  : void
Determine the right user and send out an email. If multiple users are found with the same email address an alternative email is sent.
isEnabled()  : bool
Check if there are at least one in the system that contains a non-empty password AND an email address set.
isEnabledForUser()  : bool
Check if a specific backend user can be used to trigger an email reset for (email + password set)
isValidResetTokenFromRequest()  : bool
Validates all query parameters / GET parameters of the given request against the token.
resetPassword()  : bool
Update the password in the database if the password matches and the token is valid.
findValidUserForToken()  : array<string|int, mixed>|null
Fetch the user record from the database if the token is valid, and has matched all criteria
generateResetLinkForUser()  : UriInterface
Creates a token, stores it in the database, and then creates an absolute URL for resetting the password.
getHasher()  : PasswordHashInterface
getNumberOfInitiatedResetsForEmail()  : int
SQL query to find the amount of initiated resets from a given time.
getPreparedQueryBuilder()  : QueryBuilder
The querybuilder for finding the right user - and adds some restrictions: - No CLI users - No Admin users (with option) - No hidden/deleted users - Password must be set - Username must be set - Email address must be set
hasExceededMaximumAttemptsForReset()  : bool
Checks if an email reset link has been requested more than 3 times in the last 30mins.
invalidateUserSessions()  : void
Invalidate all backend user sessions by given user id
log()  : void
Adds an entry to "sys_log", also used to track the maximum allowed attempts.
sendAmbiguousEmail()  : void
Send out an email to a given email address and note that a reset was triggered but email was used multiple times.
sendResetEmail()  : void
Send out an email to a user that does have an email address added to his account, containing a reset link.

Constants

MAXIMUM_RESET_ATTEMPTS

protected mixed MAXIMUM_RESET_ATTEMPTS = 3

MAXIMUM_RESET_ATTEMPTS_SINCE

protected mixed MAXIMUM_RESET_ATTEMPTS_SINCE = '-30 minutes'

TOKEN_VALID_UNTIL

protected mixed TOKEN_VALID_UNTIL = '+2 hours'

Methods

initiateReset()

Determine the right user and send out an email. If multiple users are found with the same email address an alternative email is sent.

public initiateReset(ServerRequestInterface $request, Context $context, string $emailAddress) : void

If no user is found, this is logged to the system (but not to sys_log).

The method intentionally does not return anything to avoid any information disclosure or exposure.

Parameters
$request : ServerRequestInterface
$context : Context
$emailAddress : string

isEnabled()

Check if there are at least one in the system that contains a non-empty password AND an email address set.

public isEnabled() : bool
Return values
bool

isEnabledForUser()

Check if a specific backend user can be used to trigger an email reset for (email + password set)

public isEnabledForUser(int $userId) : bool
Parameters
$userId : int
Return values
bool

isValidResetTokenFromRequest()

Validates all query parameters / GET parameters of the given request against the token.

public isValidResetTokenFromRequest(ServerRequestInterface $request) : bool
Parameters
$request : ServerRequestInterface
Return values
bool

resetPassword()

Update the password in the database if the password matches and the token is valid.

public resetPassword(ServerRequestInterface $request, Context $context) : bool
Parameters
$request : ServerRequestInterface
$context : Context

current context

Return values
bool —

whether the password was reset or not

findValidUserForToken()

Fetch the user record from the database if the token is valid, and has matched all criteria

protected findValidUserForToken(string $token, string $identity, int $expirationTimestamp) : array<string|int, mixed>|null
Parameters
$token : string
$identity : string
$expirationTimestamp : int
Return values
array<string|int, mixed>|null —

the BE User database record

generateResetLinkForUser()

Creates a token, stores it in the database, and then creates an absolute URL for resetting the password.

protected generateResetLinkForUser(Context $context, int $userId, string $emailAddress) : UriInterface

This is all in one method so it is not exposed from the outside.

This function requires: a) the user is allowed to do a password reset (no check is done anymore) b) a valid email address.

Parameters
$context : Context
$userId : int

the backend user uid

$emailAddress : string

is part of the hash to ensure that the email address does not get reset.

Return values
UriInterface

getNumberOfInitiatedResetsForEmail()

SQL query to find the amount of initiated resets from a given time.

protected getNumberOfInitiatedResetsForEmail(DateTimeInterface $since, string $email) : int
Parameters
$since : DateTimeInterface
$email : string
Return values
int

getPreparedQueryBuilder()

The querybuilder for finding the right user - and adds some restrictions: - No CLI users - No Admin users (with option) - No hidden/deleted users - Password must be set - Username must be set - Email address must be set

protected getPreparedQueryBuilder() : QueryBuilder
Return values
QueryBuilder

hasExceededMaximumAttemptsForReset()

Checks if an email reset link has been requested more than 3 times in the last 30mins.

protected hasExceededMaximumAttemptsForReset(Context $context, string $email) : bool

If a password was successfully reset more than three times in 30 minutes, it would still fail.

Parameters
$context : Context
$email : string
Return values
bool

invalidateUserSessions()

Invalidate all backend user sessions by given user id

protected invalidateUserSessions(int $userId) : void
Parameters
$userId : int

log()

Adds an entry to "sys_log", also used to track the maximum allowed attempts.

protected log(string $message, int $action, int $error, int $userId, array<string|int, mixed> $data, string $ipAddress, Context $context) : void
Parameters
$message : string

the information / message in english

$action : int

see SystemLogLoginAction

$error : int

see SystemLogErrorClassification

$userId : int
$data : array<string|int, mixed>

additional information, used for the message

$ipAddress : string
$context : Context

sendAmbiguousEmail()

Send out an email to a given email address and note that a reset was triggered but email was used multiple times.

protected sendAmbiguousEmail(ServerRequestInterface $request, Context $context, string $emailAddress) : void

Used when the database returned multiple users.

Parameters
$request : ServerRequestInterface
$context : Context
$emailAddress : string

sendResetEmail()

Send out an email to a user that does have an email address added to his account, containing a reset link.

protected sendResetEmail(ServerRequestInterface $request, Context $context, array<string|int, mixed> $user, string $emailAddress) : void
Parameters
$request : ServerRequestInterface
$context : Context
$user : array<string|int, mixed>
$emailAddress : string 

        

        
    




    

    

                            

            

                            
    

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