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<?php

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namespace NinjaForms\Includes\Admin;

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/**

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* Deregister completed or incorrectly structured updates

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class ManageUpdates

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{

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/**

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* Function to deregister already completed updates from the list of required updates.

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* @since 3.3.14

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* @param $updates (Array) Our array of required updates.

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* @return $updates (Array) Our array of required updates.

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public function removeCompletedUpdates($updates)

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{

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$processed = $this->getRequiredUpdates();

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// ensure that $processed value is expected type 'array'

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if(!\is_array($processed)){

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$processed =[];

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}

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// For each update in our list...

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foreach ($updates as $slug => $update) {

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// If we have already processed it...

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if (isset($processed[$slug])) {

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// Remove it from the list.

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unset($updates[$slug]);

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}

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}

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if (

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isset($updates['CacheCollateFields'])

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&& isset($updates['CacheFieldReconcilliation'])

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&& !isset($processed['CacheFieldReconcilliation'])

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) {

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unset($updates['CacheFieldReconcilliation']);

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$now = $this->getDate();

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// Append the current update to the array.

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$processed['CacheFieldReconcilliation'] = $now;

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// Save it.

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$this->updateRequiredUpdates($processed);

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}

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return $updates;

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}

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/**

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* Function to deregister updates that have required updates that either

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* don't exist, or are malformed

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* @param $updates (Array) Our array of required updates.

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* @return $updates (Array) Our array of required updates.

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public function removeBadUpdates($updates)

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{

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$processed = get_option('ninja_forms_required_updates', array());

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$sorted = array();

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$queue = array();

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// While we have not finished removing bad updates...

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while (count($sorted) < count($updates)) {

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// For each update we wish to run...

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foreach ($updates as $slug => $update) {

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// Migrate the slug to a property.

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$update['slug'] = $slug;

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// If we've not already added this to the sorted list...

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if (!in_array($update, $sorted)) {

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// If it has requirements...

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if (!empty($update['requires'])) {

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$enqueued = 0;

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// For each requirement...

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foreach ($update['requires'] as $requirement) {

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// If the requirement doesn't exist...

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if (!isset($updates[$requirement])) {

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// unset the update b/c we are missing requirements

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unset($updates[$slug]);

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$nf_bad_update_transient = get_transient('nf_bad_update_requirement');

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if (!$nf_bad_update_transient) {

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// send telemetry so we can keep up with these

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Ninja_Forms()->dispatcher()->send(

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'incomplete_update',

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array(

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'update' => $slug,

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'missing_requirement' => $requirement

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)

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);

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set_transient('nf_bad_update_requirement', $requirement, 30 * 3600);

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}

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}

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// If the requirement has already been added to the stack...

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if (in_array($requirement, $queue)) {

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$enqueued++;

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} // OR If the requirement has already been processed...

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elseif (isset($processed[$requirement])) {

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$enqueued++;

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}

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}

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// If all requirement are met...

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if ($enqueued == count($update['requires'])) {

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// Add it to the list.

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array_push($sorted, $update);

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// Record that we enqueued it.

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array_push($queue, $slug);

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}

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} // Otherwise... (It has no requirements.)

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else {

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// Add it to the list.

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array_push($sorted, $update);

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// Record that we enqueued it.

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array_push($queue, $slug);

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}

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}

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}

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}

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return $sorted;

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}

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/**

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* Retrieve required updates array from stored location

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* Note that until retrieved value is validated as an array, we do not

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* declare return type to prevent error

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* @return array

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protected function getRequiredUpdates( )

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{

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$return = get_option('ninja_forms_required_updates', array());

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return $return;

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}

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/**

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* Update value of 'required updates' in storage location

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* @param array $updates

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* @return void

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protected function updateRequiredUpdates(array $updates): void

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{

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update_option('ninja_forms_required_updates', $updates);

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}

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/**

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* Return formatted date string

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* @return string

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protected function getDate( ): string

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{

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date_default_timezone_set('UTC');

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$return = date("Y-m-d H:i:s");

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return $return;

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}

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}

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