<?php

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namespace WPForms\Requirements;

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/**

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* Requirements management.

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*

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* @since 1.8.2.2

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*/

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class Requirements {

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/**

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* Whether deactivate addon if requirements not met.

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*

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* @since 1.8.2.2

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* @since 1.9.2 Keep addons active.

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*/

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private const DEACTIVATE_IF_NOT_MET = false;

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/**

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* Whether to show PHP version notice.

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*

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* @since 1.8.2.2

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*/

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private const SHOW_PHP_NOTICE = true;

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/**

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* Whether to show a PHP extension notice.

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*

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* @since 1.8.2.2

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*/

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private const SHOW_EXT_NOTICE = true;

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/**

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* Whether to show WordPress version notice.

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*

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* @since 1.8.2.2

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*/

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private const SHOW_WP_NOTICE = true;

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/**

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* Whether to show WPForms version notice.

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*

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* @since 1.8.2.2

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*/

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private const SHOW_WPFORMS_NOTICE = true;

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/**

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* Whether to show license level notice.

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*

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* @since 1.8.2.2

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*/

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private const SHOW_LICENSE_NOTICE = false;

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/**

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* Whether to show addon version notice.

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*

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* @since 1.8.2.2

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*/

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private const SHOW_ADDON_NOTICE = true;

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/**

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* Keys of the requirements' arrays.

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*

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* @since 1.8.2.2

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*/

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private const PHP = 'php';

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private const EXT = 'ext';

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private const WP = 'wp';

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private const WPFORMS = 'wpforms';

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private const LICENSE = 'license';

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private const PRIORITY = 'priority';

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private const ADDON = 'addon';

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private const ADDON_VERSION_CONSTANT = 'addon_version_constant';

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private const VERSION = 'version';

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private const COMPARE = 'compare';

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private const COMPARE_DEFAULT = '>=';

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/**

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* Development version of WPForms. Can be specified in an addon.

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*

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* @since 1.8.2.2

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*/

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private const WPFORMS_DEV_VERSION_IN_ADDON = '{WPFORMS_VERSION}';

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/**

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* Plus, Pro and Top level licenses.

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* Must be a list separated by comma and space.

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*

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* @since 1.8.2.2

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*/

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private const PLUS_PRO_AND_TOP = [ 'plus', 'pro', 'elite', 'agency', 'ultimate' ];

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/**

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* Pro and Top level licenses.

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* Must be a list separated by comma and space.

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*

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* @since 1.8.2.2

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*/

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private const PRO_AND_TOP = [ 'pro', 'elite', 'agency', 'ultimate' ];

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/**

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* Top level licenses.

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* Must be a list separated by comma and space.

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*

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* @since 1.8.2.2

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*/

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private const TOP = [ 'elite', 'agency', 'ultimate' ];

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/**

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* Default minimal addon requirements.

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*

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* @since 1.8.2.2

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*

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* @var string[]

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*/

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private $defaults = [

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self::PHP => '7.2',

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self::WP => '5.5',

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self::WPFORMS => self::WPFORMS_DEV_VERSION_IN_ADDON,

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self::LICENSE => self::PRO_AND_TOP,

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self::PRIORITY => 10,

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];

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/**

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* Some things to do.

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*

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* @todo Add custom message for form-templates-pack.

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*/

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// phpcs:disable WordPress.Arrays.MultipleStatementAlignment.DoubleArrowNotAligned, WordPress.Arrays.MultipleStatementAlignment.LongIndexSpaceBeforeDoubleArrow

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/**

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* Addon requirements.

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*

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* Array has the format 'addon basename' => 'addon requirements array'.

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*

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* The requirement array can have the following keys:

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* self::PHP ('php') for the minimal PHP version required,

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* self::EXT ('ext') for the PHP extensions required,

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* self::WP ('wp') for the minimal WordPress version required,

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* self::WPFORMS ('wpforms') for the minimal WPForms version required,

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* self::LICENSE ('license') for the license level required,

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* self::ADDON ('addon') for the minimal addon version required,

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* self::ADDON_VERSION_CONSTANT ('addon_version_constant') for the addon version constant.

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* self::PRIORITY ('priority') for the priority of the current requirements.

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*

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* The requirement array can have the following values:

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* The 'php' value can be string like '5.6' or an array like 'php' => [ 'version' => '7.2', 'compare' => '=' ].

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* The 'ext' value can be a string like 'curl' or an array like 'ext' => [ 'curl', 'mbstring' ].

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* The 'wp' value can be string like '5.5' or an array like 'wp' => [ 'version' => '6.4', 'compare' => '=' ].

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* The 'wpforms' value can be string like '1.8.2' or an array like 'wpforms' => [ 'version' => '1.7.5', 'compare' => '=' ].

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* When the 'wpforms' value is '{WPFORMS_VERSION}', it is not checked and should be used for development.

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* The 'license' value can be string like 'elite, agency, ultimate' or an array like 'license' => [ 'elite', 'agency', 'ultimate' ].

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* When the 'license' value is empty like null, false, [], it is not checked.

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* The 'addon' value can be a string like '2.0.1' or an array like 'addon' => [ 'version' => '2.0.1', 'compare' => '<=' ].

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* The 'addon_version_constant' must be a string like 'WPFORMS_ACTIVECAMPAIGN_VERSION'.

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* The 'priority' must be an integer like 20. By default, it is 10.

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*

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* By default, 'compare' is '>='.

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*

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* The default addon version constant is formed from the addon directory name like this:

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* wpforms-activecampaign -> WPFORMS_ACTIVECAMPAIGN_VERSION.

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*

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* Requirements can be specified here or in the addon as a parameter of wpforms_requirements().

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* The priorities from lower to higher (if PRIORITY is not set or equal):

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* 1. Default parameters from $this->defaults.

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* 2. Current array $this->requirements.

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* 3. Parameter of wpforms_requirements() call in the addon.

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* Settings with a higher priority overwrite lower priority settings.

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*

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* The minimal-required version of WPForms should be specified in the addons.

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* The minimal-required version of addons should be specified here, in the `$this->requirements` array.

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*

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* We do not plan to restrict the lower addon version so far.

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* However, if in the future we may need to do so,

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* we should add to the addon-related requirement array the line like

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* self::ADDON => '1.x.x' or

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* self::ADDON => '{WPFORMS_ACTIVECAMPAIGN_VERSION}'.

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* Here 1.x.x is the specific addon version, and

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* WPFORMS_ACTIVECAMPAIGN_VERSION is the addon version constant name.

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* The script will replace the addon version constant name during the addon release.

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*

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* @since 1.8.2.2

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*

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* @var array

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*/

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private $requirements = [

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'wpforms/wpforms.php' => [

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self::EXT => 'curl, dom, json, libxml',

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self::LICENSE => [],

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],

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'wpforms-lite/wpforms.php' => [

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self::EXT => 'curl, dom, json, libxml',

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self::LICENSE => [],

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],

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'wpforms-activecampaign/wpforms-activecampaign.php' => [

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self::LICENSE => self::TOP,

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],

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'wpforms-authorize-net/wpforms-authorize-net.php' => [

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self::EXT => 'curl',

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self::LICENSE => self::TOP,

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],

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'wpforms-aweber/wpforms-aweber.php' => [

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self::EXT => 'curl',

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self::LICENSE => self::PLUS_PRO_AND_TOP,

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],

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'wpforms-calculations/wpforms-calculations.php' => [

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self::ADDON => '1.5.0',

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],

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'wpforms-campaign-monitor/wpforms-campaign-monitor.php' => [

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self::LICENSE => self::PLUS_PRO_AND_TOP,

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],

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'wpforms-captcha/wpforms-captcha.php' => [

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self::LICENSE => 'basic, plus, pro, elite, agency, ultimate',

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self::WPFORMS => [

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self::VERSION => [ '1.8.3', '1.8.7' ],

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self::COMPARE => [ '>=', '<' ],

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],

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self::PRIORITY => 20,

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],

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'wpforms-conversational-forms/wpforms-conversational-forms.php' => [],

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'wpforms-convertkit/wpforms-convertkit.php' => [

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self::LICENSE => self::PLUS_PRO_AND_TOP,

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self::PHP => '7.4',

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],

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'wpforms-coupons/wpforms-coupons.php' => [

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self::ADDON => '1.6.0',

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],

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'wpforms-drip/wpforms-drip.php' => [

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self::EXT => 'curl',

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self::LICENSE => self::PLUS_PRO_AND_TOP,

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],

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'wpforms-dropbox/wpforms-dropbox.php' => [

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self::ADDON => '1.1.0',

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],

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'wpforms-entry-automation/wpforms-entry-automation.php' => [

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self::LICENSE => self::TOP,

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],

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'wpforms-form-abandonment/wpforms-form-abandonment.php' => [],

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'wpforms-form-locker/wpforms-form-locker.php' => [

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self::ADDON => '2.8.0',

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],

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'wpforms-form-pages/wpforms-form-pages.php' => [],

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'wpforms-form-templates-pack/wpforms-form-templates-pack.php' => [

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self::WPFORMS => [

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self::VERSION => '1.6.8',

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self::COMPARE => '<',

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],

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],

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'wpforms-geolocation/wpforms-geolocation.php' => [],

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'wpforms-getresponse/wpforms-getresponse.php' => [

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self::EXT => 'curl',

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self::LICENSE => self::PLUS_PRO_AND_TOP,

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self::PHP => '7.3',

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],

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'wpforms-google-calendar/wpforms-calendar.php' => [],

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'wpforms-google-drive/wpforms-google-drive.php' => [

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self::EXT => 'fileinfo',

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],

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'wpforms-google-sheets/wpforms-google-sheets.php' => [

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self::ADDON => '2.2.0',

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],

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'wpforms-hubspot/wpforms-hubspot.php' => [

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self::LICENSE => self::TOP,

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],

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'wpforms-lead-forms/wpforms-lead-forms.php' => [],

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'wpforms-mailchimp/wpforms-mailchimp.php' => [

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self::EXT => 'curl',

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self::LICENSE => self::PLUS_PRO_AND_TOP,

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],

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'wpforms-mailerlite/wpforms-mailerlite.php' => [

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self::LICENSE => self::PLUS_PRO_AND_TOP,

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],

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'wpforms-mailpoet/wpforms-mailpoet.php' => [

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self::LICENSE => self::PLUS_PRO_AND_TOP,

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],

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'wpforms-offline-forms/wpforms-offline-forms.php' => [],

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'wpforms-paypal-commerce/wpforms-paypal-commerce.php' => [],

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'wpforms-paypal-standard/wpforms-paypal-standard.php' => [],

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'wpforms-pdf/wpforms-pdf.php' => [

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self::LICENSE => self::PRO_AND_TOP,

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],

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'wpforms-pipedrive/wpforms-pipedrive.php' => [

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self::LICENSE => self::TOP,

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],

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'wpforms-post-submissions/wpforms-post-submissions.php' => [],

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'wpforms-salesforce/wpforms-salesforce.php' => [

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self::LICENSE => self::TOP,

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],

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'wpforms-save-resume/wpforms-save-resume.php' => [

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self::LICENSE => self::PLUS_PRO_AND_TOP,

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],

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'wpforms-sendinblue/wpforms-sendinblue.php' => [

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self::LICENSE => self::PLUS_PRO_AND_TOP,

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],

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'wpforms-signatures/wpforms-signatures.php' => [

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self::ADDON => '1.12.0',

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self::EXT => 'gd',

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],

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'wpforms-slack/wpforms-slack.php' => [

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self::LICENSE => self::PLUS_PRO_AND_TOP,

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],

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'wpforms-square/wpforms-square.php' => [

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self::PHP => '7.2',

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],

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'wpforms-stripe/wpforms-stripe.php' => [],

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'wpforms-surveys-polls/wpforms-surveys-polls.php' => [

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self::ADDON => '1.15.0',

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],

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'wpforms-twilio/wpforms-twilio.php' => [

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self::LICENSE => self::PLUS_PRO_AND_TOP,

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],

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'wpforms-user-journey/wpforms-user-journey.php' => [],

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'wpforms-user-registration/wpforms-user-registration.php' => [],

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'wpforms-webhooks/wpforms-webhooks.php' => [

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self::LICENSE => self::TOP,

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],

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'wpforms-zapier/wpforms-zapier.php' => [],

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'wpforms-zoho-crm/wpforms-zoho-crm.php' => [

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self::LICENSE => self::TOP,

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],

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];

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// phpcs:enable WordPress.Arrays.MultipleStatementAlignment.DoubleArrowNotAligned, WordPress.Arrays.MultipleStatementAlignment.LongIndexSpaceBeforeDoubleArrow

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/**

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* Addon requirements.

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*

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* @since 1.8.2.2

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*

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* @var array

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*/

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private $addon_requirements = [];

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/**

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* Addon basename.

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*

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* @since 1.8.2.2

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*

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* @var string

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*/

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private $basename = '';

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/**

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* Validated addons.

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*

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* @since 1.8.2.2

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*

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* @var array

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*/

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private $validated = [];

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/**

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* Not validated addons.

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*

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* @since 1.8.2.2

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*

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* @var array

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*/

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private $not_validated = [];

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/**

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* Get a single instance of the addon.

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*

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* @since 1.8.2.2

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*

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* @return Requirements

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*/

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public static function get_instance(): Requirements {

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static $instance;

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if ( ! $instance ) {

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$instance = new self();

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$instance->init();

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}

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return $instance;

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}

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/**

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* Init class.

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*

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* @since 1.8.2.2

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*/

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private function init(): void {

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foreach ( $this->requirements as $basename => $requirement ) {

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$this->init_addon_requirements( $basename );

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}

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$this->hooks();

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}

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/**

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* Add hooks.

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*

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* @since 1.8.2.2

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*/

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private function hooks(): void {

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add_action( 'admin_init', [ $this, 'deactivate' ] );

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add_action( 'admin_notices', [ $this, 'show_notices' ] );

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add_action( 'network_admin_notices', [ $this, 'show_notices' ] );

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}

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/**

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* Validate an addon.

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*

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* @since 1.8.2.2

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*

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* @param array $addon_requirements Addon requirements.

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*

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* @return bool

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*/

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public function validate( array $addon_requirements ): bool {

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$this->addon_requirements = $addon_requirements;

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$file = $this->addon_requirements['file'];

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// Requirements' array must contain the addon main filename.

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if ( ! isset( $file ) ) {

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return false;

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}

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$this->basename = plugin_basename( $file );

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// Respect WPF activity.

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if ( $this->basename === 'wpforms/wpforms.php' && ! wpforms_is_pro() ) {

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$this->basename = 'wpforms-lite/wpforms.php';

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}

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$this->init_addon_requirements( $this->basename );

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$this->addon_requirements = $this->merge_requirements(

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$this->defaults,

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$this->requirements[ $this->basename ],

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$this->addon_requirements

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);

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$php_valid = $this->validate_php();

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$ext_valid = $this->validate_ext();

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$wp_valid = $this->validate_wp();

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$wpforms_valid = $this->validate_wpforms();

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$license_valid = $this->validate_license();

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$addon_valid = $this->validate_addon();

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if ( $php_valid && $ext_valid && $wp_valid && $wpforms_valid && $license_valid && $addon_valid ) {

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$this->validated[] = $this->basename;

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}

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$this->requirements[ $this->basename ] = $this->addon_requirements;

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return empty( $this->not_validated[ $this->basename ] );

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}

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/**

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* Determine if addon is validated.

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*

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* @since 1.9.2

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*

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* @param string $basename Addon basename.

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*

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* @return bool

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*/

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public function is_validated( string $basename ): bool {

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if ( ! file_exists( WP_PLUGIN_DIR . '/' . $basename ) ) {

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// No more actions if the plugin file does not exist.

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return false;

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}

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if ( ! $this->is_wpforms_addon( $basename ) ) {

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// No more actions if it is not a wpforms addon.

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return true;

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}

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// We didn't check the addon before.

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if ( ! isset( $this->not_validated[ $basename ] ) && ! in_array( $basename, $this->validated, true ) ) {

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$addon_load_function = $this->get_addon_load_function( $basename );

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if ( ! is_callable( $addon_load_function ) ) {

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return false;

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}

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// Invoke the addon loading function, which checks requirements.

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$addon_load_function();

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}

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return in_array( $basename, $this->validated, true );

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}

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/**

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* Merge requirements by priority.

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*

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* @since 1.8.7

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*

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* @param array $defaults Default requirements.

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* @param array $requirements Requirements.

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* @param array $addon_requirements Addon requirements.

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