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<?php

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namespace WPForms\Requirements;

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/**

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* Requirements management.

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* @since 1.8.2.2

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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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* @since 1.8.2.2

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const DEACTIVATE_IF_NOT_MET = true;

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/**

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* Whether to show PHP version notice.

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* @since 1.8.2.2

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const SHOW_PHP_NOTICE = true;

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/**

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* Whether to show PHP extension notice.

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* @since 1.8.2.2

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const SHOW_EXT_NOTICE = true;

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/**

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* Whether to show WordPress version notice.

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* @since 1.8.2.2

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const SHOW_WP_NOTICE = true;

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/**

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* Whether to show WPForms version notice.

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* @since 1.8.2.2

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const SHOW_WPFORMS_NOTICE = true;

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/**

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* Whether to show license level notice.

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* @since 1.8.2.2

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const SHOW_LICENSE_NOTICE = false;

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/**

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* Whether to show addon version notice.

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* @since 1.8.2.2

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const SHOW_ADDON_NOTICE = true;

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/**

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* Keys of the requirements' arrays.

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* @since 1.8.2.2

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const PHP = 'php';

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const EXT = 'ext';

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const WP = 'wp';

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const WPFORMS = 'wpforms';

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const LICENSE = 'license';

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const PRIORITY = 'priority';

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const ADDON = 'addon';

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const ADDON_VERSION_CONSTANT = 'addon_version_constant';

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const VERSION = 'version';

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const COMPARE = 'compare';

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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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* @since 1.8.2.2

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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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* @since 1.8.2.2

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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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* @since 1.8.2.2

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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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* @since 1.8.2.2

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

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/**

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* Default minimal addon requirements.

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* @since 1.8.2.2

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* @var string[]

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private $defaults = [

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self::PHP => '7.0',

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

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

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

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

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

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

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

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

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

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

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

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

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

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* Default addon version constant is formed from addon directory name like this:

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* wpforms-activecampaign -> WPFORMS_ACTIVECAMPAIGN_VERSION.

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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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* Minimal required version of WPForms should be specified in the addons.

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* Minimal required version of addons should be specified here, in $this->requirements array.

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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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* @since 1.8.2.2

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* @var array

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private $requirements = [

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

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self::LICENSE => self::TOP,

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

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self::LICENSE => self::TOP,

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

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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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'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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self::PRIORITY => 20,

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

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

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self::LICENSE => self::PLUS_PRO_AND_TOP,

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

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

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self::LICENSE => self::PLUS_PRO_AND_TOP,

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

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

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self::LICENSE => self::TOP,

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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::LICENSE => self::PLUS_PRO_AND_TOP,

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

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self::LICENSE => self::PLUS_PRO_AND_TOP,

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

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self::LICENSE => self::PLUS_PRO_AND_TOP,

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

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self::LICENSE => self::PLUS_PRO_AND_TOP,

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

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self::EXT => 'gd',

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

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self::PHP => '7.2',

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

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

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

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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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* @since 1.8.2.2

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* @var array

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private $addon_requirements = [];

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/**

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* Addon basename.

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* @since 1.8.2.2

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* @var string

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private $basename = '';

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/**

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* Validated addons.

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* @since 1.8.2.2

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* @var array

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private $validated = [];

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/**

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* Not validated addons.

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* @since 1.8.2.2

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* @var array

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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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* @since 1.8.2.2

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* @return Requirements

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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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* @since 1.8.2.2

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private function init() {

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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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* @since 1.8.2.2

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private function hooks() {

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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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* @since 1.8.2.2

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* @param array $addon_requirements Addon requirements.

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* @return bool

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public function validate( array $addon_requirements ): bool {

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$this->addon_requirements = $addon_requirements;

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

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if ( ! isset( $this->addon_requirements['file'] ) ) {

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return false;

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}

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$this->basename = plugin_basename( $this->addon_requirements['file'] );

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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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* Merge requirements by priority.

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* @since 1.8.7

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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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* @return array

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private function merge_requirements( array $defaults, array $requirements, array $addon_requirements ): array {

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$chunks = [ $defaults, $requirements, $addon_requirements ];

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usort(

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$chunks,

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static function ( $chunk1, $chunk2 ) {

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// phpcs:ignore WPForms.Formatting.EmptyLineBeforeReturn.AddEmptyLineBeforeReturnStatement

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return ( $chunk1[ self::PRIORITY ] ?? 10 ) <=> ( $chunk2[ self::PRIORITY ] ?? 10 );

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}

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);

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return array_merge( ...$chunks );

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}

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/**

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* Try to deactivate not valid addon.

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* @since 1.8.2.2

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* @param string $plugin Path to the plugin file relative to the plugins' directory.

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* @return bool True if addon was deactivated.

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public function deactivate_not_valid_addon( string $plugin ): bool {

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if ( ! self::DEACTIVATE_IF_NOT_MET ) {

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// No more actions if we not demand deactivation.

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return false;

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}

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

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

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return false;

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}

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// Finalise activation of wpforms addon.

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

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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 addon loading function, which checks requirements.

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$addon_load_function();

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// Addon may get deactivated after this statement.

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$this->deactivate();

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return ! is_plugin_active( $plugin );

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}

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/**

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* Check whether a plugin is a wpforms addon.

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* @since 1.8.2.2

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* @param string $plugin Path to the plugin file relative to the plugins' directory.

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* @return bool

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private function is_wpforms_addon( string $plugin ): bool {

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if ( strpos( $plugin, 'wpforms-' ) !== 0 ) {

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// No more actions for general plugin.

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return false;

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}

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[473] Fix | Delete

/**

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* There are some forks of our plugins having the 'wpforms-' prefix.

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* We have to check the Author name in the plugin header.

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$plugin_data = get_plugin_data( WP_PLUGIN_DIR . '/' . $plugin );

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$plugin_author = isset( $plugin_data['Author'] ) ? strtolower( $plugin_data['AuthorName'] ) : '';

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// No more actions on forks.

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return $plugin_author === 'wpforms';

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}

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[484] Fix | Delete

/**

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* Get addon function hooked on wpforms_load.

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* @since 1.8.2.2

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* @param string $plugin Path to the plugin file relative to the plugins' directory.

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* @return string

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private function get_addon_load_function( string $plugin ): string {

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global $wp_filter;

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$callbacks = $wp_filter['wpforms_loaded']->callbacks;

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$prefix = explode( '/', $plugin, 2 )[0];

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