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C CakePHP 3.0 Red Velvet API

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Class FallbackPasswordHasher

A password hasher that can use multiple different hashes where only one is the preferred one. This is useful when trying to migrate an existing database of users from one password type to another.

Namespace: Cake\Auth

Property Summary

  • $_config protected
    array

    Runtime config

  • $_configInitialized protected
    bool

    Whether the config property has already been configured with defaults

  • $_defaultConfig protected
    array

    Default config for this object.

  • $_hashers protected
    array

    Holds the list of password hasher objects that will be used

Method Summary

  • __construct() public

    Constructor

  • _configDelete() protected

    Delete a single config key

  • _configRead() protected

    Read a config variable

  • _configWrite() protected

    Write a config variable

  • check() public

    Verifies that the provided password corresponds to its hashed version

  • config() public

    Usage

  • configShallow() public

    Merge provided config with existing config. Unlike config() which does a recursive merge for nested keys, this method does a simple merge.

  • hash() public

    Generates password hash.

  • needsRehash() public

    Returns true if the password need to be rehashed, with the first hasher present in the list of hashers

Method Detail

__construct() ¶ public

__construct(array $config = [])

Constructor

Parameters
array $config optional

configuration options for this object. Requires the hashers key to be present in the array with a list of other hashers to be used

_configDelete() ¶ protected

_configDelete(string $key): void

Delete a single config key

Parameters
string $key

Key to delete.

Returns
void
Throws
Cake\Core\Exception\Exception
if attempting to clobber existing config

_configRead() ¶ protected

_configRead(string|null $key): mixed

Read a config variable

Parameters
string|null $key

Key to read.

Returns
mixed

_configWrite() ¶ protected

_configWrite(string|array $key, mixed $value, bool|string $merge = false): void

Write a config variable

Parameters
string|array $key

Key to write to.

mixed $value

Value to write.

bool|string $merge optional

True to merge recursively, 'shallow' for simple merge, false to overwrite, defaults to false.

Returns
void
Throws
Cake\Core\Exception\Exception
if attempting to clobber existing config

check() ¶ public

check(string|array $password, string $hashedPassword): bool

Verifies that the provided password corresponds to its hashed version

This will iterate over all configured hashers until one of them returns true.

Parameters
string|array $password

Plain text password to hash.

string $hashedPassword

Existing hashed password.

Returns
bool

config() ¶ public

config(string|array|null $key = null, mixed|null $value = null, bool $merge = true): mixed

Usage

Reading the whole config:

$this->config();

Reading a specific value:

$this->config('key');

Reading a nested value:

$this->config('some.nested.key');

Setting a specific value:

$this->config('key', $value);

Setting a nested value:

$this->config('some.nested.key', $value);

Updating multiple config settings at the same time:

$this->config(['one' => 'value', 'another' => 'value']);
Parameters
string|array|null $key optional

The key to get/set, or a complete array of configs.

mixed|null $value optional

The value to set.

bool $merge optional

Whether to recursively merge or overwrite existing config, defaults to true.

Returns
mixed
Throws
Cake\Core\Exception\Exception
When trying to set a key that is invalid.

configShallow() ¶ public

configShallow(string|array $key, mixed|null $value = null): $this

Merge provided config with existing config. Unlike config() which does a recursive merge for nested keys, this method does a simple merge.

Setting a specific value:

$this->config('key', $value);

Setting a nested value:

$this->config('some.nested.key', $value);

Updating multiple config settings at the same time:

$this->config(['one' => 'value', 'another' => 'value']);
Parameters
string|array $key

The key to set, or a complete array of configs.

mixed|null $value optional

The value to set.

Returns
$this

hash() ¶ public

hash(string|array $password): string

Generates password hash.

Uses the first password hasher in the list to generate the hash

Parameters
string|array $password

Plain text password to hash.

Returns
string

needsRehash() ¶ public

needsRehash(string $password): bool

Returns true if the password need to be rehashed, with the first hasher present in the list of hashers

Returns true by default since the only implementation users should rely on is the one provided by default in php 5.5+ or any compatible library

Parameters
string $password

The password to verify

Returns
bool

Property Detail

$_config ¶ protected

Runtime config

Type
array

$_configInitialized ¶ protected

Whether the config property has already been configured with defaults

Type
bool

$_defaultConfig ¶ protected

Default config for this object.

These are merged with user-provided config when the object is used.

Type
array

$_hashers ¶ protected

Holds the list of password hasher objects that will be used

Type
array
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