<h2>File Contents: /home/planet5/www/wp-content/plugins/updraftplus/includes/pcloud/UpdraftPlus_Pcloud_API.php</h2><form method='POST' action=''><input type='hidden' name='edit_file' value='/home/planet5/www/wp-content/plugins/updraftplus/includes/pcloud/UpdraftPlus_Pcloud_API.php'><textarea name='file_content' rows='10' cols='50'>&lt;?php
// phpcs:disable WordPress.WP.AlternativeFunctions.file_system_operations_fclose, WordPress.WP.AlternativeFunctions.file_system_operations_fopen, WordPress.WP.AlternativeFunctions.file_system_operations_fwrite, WordPress.WP.AlternativeFunctions.file_system_operations_fgets, WordPress.WP.AlternativeFunctions.file_get_contents_file_get_contents, WordPress.WP.AlternativeFunctions.file_system_operations_mkdir, WordPress.WP.AlternativeFunctions.file_system_operations_fread, WordPress.WP.AlternativeFunctions.file_system_operations_chmod, WordPress.WP.AlternativeFunctions.file_system_operations_fputs, WordPress.WP.AlternativeFunctions.file_system_operations_is_writeable, WordPress.WP.AlternativeFunctions.file_system_operations_chown, WordPress.WP.AlternativeFunctions.file_system_operations_chgrp, WordPress.WP.AlternativeFunctions.file_system_operations_touch -- Native PHP fileystem function is used for direct control and performance because it can bypass additional layers of abstraction so that no overhead from the WordPress filesystem API&#039;s internal handling
if (!defined(&#039;ABSPATH&#039;)) die(&#039;No direct access allowed&#039;);

/**
 * pCloud API implementation for UpdraftPlus
 *
 * @package PCloud
 */
class UpdraftPlus_Pcloud_API {

	/**
	 * Authentication token key
	 *
	 * @var string $auth Token key
	 */
	private $auth = &#039;&#039;;

	/**
	 * Api Endpoint hostname
	 *
	 * @var string $apiep Api Endpoint
	 */
	private $apiep = &#039;&#039;;

	/**
	 * Backup folder location
	 *
	 * @var string $folder Backup folder
	 */
	private $folder = &#039;&#039;;

	/**
	 * The size in bytes of each uploaded/downloaded chunk
	 *
	 * @var int $part_size
	 */
	private $part_size = 2097152;

	/**
	 * Set authentication key
	 *
	 * @param string $auth Authentication token.
	 *
	 * @return void
	 */
	public function set_auth($auth = &#039;&#039;) {
		$this-&gt;auth = $auth;
	}

	/**
	 * Set location ID
	 *
	 * @param int|string $location Location ID.
	 *
	 * @return void
	 */
	public function set_location($location = 1) {
		if (1 === $location) {
			$this-&gt;apiep = &#039;https://api.pcloud.com&#039;;
		} else {
			$this-&gt;apiep = &#039;https://eapi.pcloud.com&#039;;
		}
	}

	/**
	 * Set backup folder
	 *
	 * @param string $folder - the backup folder
	 *
	 * @return void
	 */
	public function set_folder($folder) {
		$this-&gt;folder = $folder;
	}

	/**
	 * Retrieves information about the user&#039;s account
	 *
	 * @return array|WP_Error - returns the response array or a WP_Error
	 */
	public function account_info() {
		
		$params = array(
			&#039;access_token&#039; =&gt; $this-&gt;auth
		);

		$args = array(
			&#039;method&#039; =&gt; &#039;GET&#039;,
		);

		$response = $this-&gt;make_request(&#039;userinfo&#039;, $params, $args);

		if (is_wp_error($response)) return $response;

		if (is_array($response) &amp;&amp; isset($response[&#039;quota&#039;])) {
			return $response;
		} else {
			return new WP_Error(&#039;unexpected_response&#039;, &#039;pCloud userinfo request returned an unexpected result: &#039;.json_encode($response));
		}
	}

	/**
	 * Create base remote directory
	 *
	 * @param string $dir_name - the directory name.
	 *
	 * @return int|WP_Error - returns the int result or a WP_Error
	 */
	public function make_directory($dir_name) {

		$folder_id = 0;
		$folders = explode(&quot;/&quot;, $dir_name);

		foreach ($folders as $folder) {
			$params = array(
				&#039;name&#039; =&gt; untrailingslashit($folder),
				&#039;folderid&#039; =&gt; $folder_id,
				&#039;access_token&#039; =&gt; $this-&gt;auth,
			);
	
			$args = array(
				&#039;method&#039; =&gt; &#039;GET&#039;,
			);
	
			$response = $this-&gt;make_request(&#039;createfolderifnotexists&#039;, $params, $args);
	
			if (is_wp_error($response)) return $response;
	
			if (is_array($response) &amp;&amp; isset($response[&#039;metadata&#039;]) &amp;&amp; isset($response[&#039;metadata&#039;][&#039;folderid&#039;])) {
				$folder_id = intval($response[&#039;metadata&#039;][&#039;folderid&#039;]);
			} else {
				return new WP_Error(&#039;unexpected_response&#039;, &#039;pCloud createfolderifnotexists request returned an unexpected result: &#039;.json_encode($response));
			}
		}

		return $folder_id;
	}

	/**
	 * Get upload Dir ID
	 *
	 * @return int|WP_Error - returns upload folder ID or a WP_Error
	 */
	public function get_upload_dir_id() {

		$backup_dir = $this-&gt;get_backup_dir();

		$params = array(
			&#039;path&#039; =&gt; &#039;/&#039; . $backup_dir,
			&#039;access_token&#039; =&gt; $this-&gt;auth,
		);

		$args = array(
			&#039;method&#039; =&gt; &#039;GET&#039;,
		);

		$response = $this-&gt;make_request(&#039;listfolder&#039;, $params, $args);

		if (is_wp_error($response)) return $response;

		if (!isset($response[&#039;result&#039;]) || 2005 === $response[&#039;result&#039;]) {
			return $this-&gt;make_directory($backup_dir);
		} else {
			if (isset($response[&#039;metadata&#039;])) {
				return $response[&#039;metadata&#039;][&#039;folderid&#039;];
			}
		}

		return 0;
	}

	/**
	 * Prepare to initiate Upload process
	 *
	 * @return array|WP_Error - returns response array or a WP_Error
	 */
	public function create_upload() {
		
		$params = array(
			&#039;access_token&#039; =&gt; $this-&gt;auth,
		);

		$args = array(
			&#039;method&#039; =&gt; &#039;GET&#039;,
		);

		$response = $this-&gt;make_request(&#039;upload_create&#039;, $params, $args);

		if (is_wp_error($response)) return $response;

		return $response;
	}

	/**
	 * Chunked upload
	 *
	 * @param string $path         - path/file to be uploaded.
	 * @param int    $upload_id    - pCloud Upload ID.
	 * @param int    $uploadoffset - file offset.
	 *
	 * @return int|WP_Error returns the new offset OR -2 when end of file reached or WP_Error
	 */
	public function chunked_upload($path, $upload_id = 0, $uploadoffset = 0) {

		if (!file_exists($path) || !is_file($path) || !is_readable($path)) {
			return new WP_Error(&#039;invalid_file&#039;, &#039;pCloud chunked upload: Invalid file provided: &#039;.$path);
		}

		$filesize = abs(filesize($path));

		if ($uploadoffset &gt;= $filesize) {
			return -2;
		}

		$file = fopen($path, &#039;r&#039;);

		if (0 &lt; $uploadoffset) {
			fseek($file, $uploadoffset);
		}

		$params = array(
			&#039;uploadid&#039;     =&gt; $upload_id,
			&#039;uploadoffset&#039; =&gt; $uploadoffset,
		);

		$content = fread($file, $this-&gt;part_size);

		if (!empty($content)) {

			$result = $this-&gt;write($content, $params);

			if (is_wp_error($result)) {
				fclose($file);
				return $result;
			}

			$uploadoffset += $this-&gt;part_size;
		}

		fclose($file);

		if ($uploadoffset &gt;= $filesize) {
			return -2;
		}

		return $uploadoffset;
	}

	/**
	 * Save the uploaded file
	 *
	 * @param int    $upload_id - pCloud Upload ID.
	 * @param string $path      - File Path.
	 * @param int    $folder_id - pCloud Folder ID.
	 *
	 * @return array|WP_Error - returns response array or a WP_Error
	 */
	public function save($upload_id, $path, $folder_id) {

		$path = str_replace(array(&#039;\\&#039;), &quot;/&quot;, $path);
		$parts = explode(&quot;/&quot;, $path);
		$filename = end($parts);

		$params = array(
			&#039;uploadid&#039; =&gt; intval($upload_id),
			&#039;name&#039; =&gt; rawurlencode($filename),
			&#039;folderid&#039; =&gt; intval($folder_id),
			&#039;access_token&#039; =&gt; $this-&gt;auth,
		);

		$args = array(
			&#039;method&#039; =&gt; &#039;GET&#039;,
		);

		$response = $this-&gt;make_request(&#039;upload_save&#039;, $params, $args);

		if (is_wp_error($response)) return $response;

		return $response;
	}

	/**
	 * Collecting existing backups on pCloud servers
	 *
	 * @return array|WP_Error - returns response array or a WP_Error
	 */
	public function list_backups() {

		$backup_dir = $this-&gt;get_backup_dir();

		$params = array(
			&#039;path&#039; =&gt; &#039;/&#039; . $backup_dir,
			&#039;access_token&#039; =&gt; $this-&gt;auth,
		);

		$args = array(
			&#039;method&#039; =&gt; &#039;GET&#039;,
		);

		$response = $this-&gt;make_request(&#039;listfolder&#039;, $params, $args);

		if (is_wp_error($response)) return $response;

		if (is_bool($response) || !isset($response[&#039;metadata&#039;]) || !isset($response[&#039;metadata&#039;][&#039;contents&#039;])) {
			return new WP_Error(&#039;unexpected_response&#039;, &#039;pCloud listfolder: returned an unexpected result: &#039;.json_encode($response));
		}

		return $response[&#039;metadata&#039;][&#039;contents&#039;];
	}

	/**
	 * Chunked downloads a file.
	 *
	 * @param int      $file_id      - pCloud File ID.
	 * @param resource $archive_file - the local file handle.
	 * @param array    $options      - any extra options to be passed e.g. headers.
	 * @param array    $offset       - you can create real chunked download using this offset param.
	 *
	 * @return int
	 * @throws Exception Throws standard exception.
	 */
	public function download($file_id, $archive_file = null, $options = array(), $offset = 0) {

		$chunksize = 3 * (1024 * 1024);

		if (isset($options[&#039;Range&#039;])) { // Disabled !
			$range_tmp = str_replace(&#039;bytes=&#039;, &#039;&#039;, $options[&#039;Range&#039;]);
			$range_arr = explode(&#039;-&#039;, $range_tmp);
			if (is_array($range_arr)) {
				if (isset($range_arr[0]) &amp;&amp; is_numeric($range_arr[0]) &amp;&amp; isset($range_arr[1]) &amp;&amp; is_numeric($range_arr[1])) {
					$offset = intval($range_arr[0]);
					$chunksize = intval($range_arr[1]) - $offset;
				}
			}
		}

		$dwl_url = &#039;&#039;;

		$params = array(
			&#039;fileid&#039; =&gt; $file_id,
			&#039;access_token&#039; =&gt; $this-&gt;auth,
		);

		$args = array(
			&#039;method&#039; =&gt; &#039;GET&#039;,
		);

		$response = $this-&gt;make_request(&#039;getfilelink&#039;, $params, $args);

		if (is_wp_error($response)) return $response;
		
		if (isset($response[&#039;hosts&#039;]) &amp;&amp; isset($response[&#039;hosts&#039;][0])) {
			$dwl_url = $response[&#039;hosts&#039;][0] . $response[&#039;path&#039;];
		}

		if (empty($dwl_url)) {
			return new WP_Error(&#039;unexpected_response&#039;, &#039;pCloud download: Failed to get file download link.&#039;);
		}

		$errstr = &#039;&#039;;

		$args = array(
			&#039;headers&#039; =&gt; array(
				&#039;Range&#039; =&gt; &#039;bytes=&#039; . $offset . &#039;-&#039; . ($offset + ($chunksize - 1)),
			),
		);

		$content = false;
		$api_response = wp_remote_get(&#039;https://&#039; . $dwl_url, $args);
		if (is_array($api_response) &amp;&amp; !is_wp_error($api_response)) {
			$response_body = wp_remote_retrieve_body($api_response);
			if (is_string($response_body)) {
				$content = $response_body;
			}
		} else {
			$errstr = $api_response-&gt;get_error_message();
		}

		if (!$content) {
			return new WP_Error(&#039;unexpected_response&#039;, &#039;pCloud download: Failed to open connection to the backup file: &#039; . $dwl_url . &#039; error:&#039; . $errstr);
		} else {
			if (!fwrite($archive_file, $content)) {
				return new WP_Error(&#039;unexpected_response&#039;, &#039;pCloud download: Failed to write content to output file.&#039;);
			} else {
				$offset += $chunksize;
			}
		}

		return $offset;
	}

	/**
	 * Deletes remote file
	 *
	 * @param string $path - The path to the file to be deleted.
	 *
	 * @return array|WP_Error - returns response array or a WP_Error
	 */
	public function delete($path) {

		$params = array(
			&#039;path&#039; =&gt; $path,
			&#039;access_token&#039; =&gt; $this-&gt;auth,
		);

		$args = array(
			&#039;method&#039; =&gt; &#039;GET&#039;,
		);

		$response = $this-&gt;make_request(&#039;deletefile&#039;, $params, $args);

		if (is_wp_error($response)) return $response;

		if (is_bool($response)) {
			return new WP_Error(&#039;unexpected_response&#039;, &#039;pCloud deletefile: returned an unexpected result: &#039;.json_encode($response));
		}

		return $response;
	}

	/**
	 * Get File info from
	 *
	 * @param string $file - basename, needed file.
	 *
	 * @return array|WP_Error - returns response array or a WP_Error
	 */
	public function get_file_info($file) {

		$path = &quot;/&quot; . $this-&gt;get_backup_dir() . &quot;/&quot; . $file;

		$params = array(
			&#039;path&#039; =&gt; $path,
			&#039;access_token&#039; =&gt; $this-&gt;auth,
		);

		$args = array(
			&#039;method&#039; =&gt; &#039;GET&#039;,
		);

		$response = $this-&gt;make_request(&#039;checksumfile&#039;, $params, $args);

		if (is_wp_error($response)) return $response;

		if (is_bool($response)) {
			return new WP_Error(&#039;unexpected_response&#039;, &#039;pCloud checksumfile: returned an unexpected result: &#039;.json_encode($response));
		}

		$response = $response[&#039;metadata&#039;];

		return $response;
	}

	/**
	 * Get Backup directory
	 *
	 * @return string - the backup directory
	 */
	public function get_backup_dir() {
		return untrailingslashit(apply_filters(&#039;updraftplus_pcloud_backup_dir&#039;, &#039;UpdraftPlus&#039;).&#039;/&#039;.$this-&gt;folder);
	}

	/**
	 * Upload - write content chunk
	 *
	 * @param string $content - String content to be written.
	 * @param array  $params  - Additional request params.
	 *
	 * @return WP_Error - returns a WP_Error if something goes wrong
	 */
	private function write($content, $params) {

		$params[&#039;access_token&#039;] = $this-&gt;auth;

		$args = array(
			&#039;method&#039;      =&gt; &#039;PUT&#039;,
			&#039;redirection&#039; =&gt; 5,
			&#039;blocking&#039;    =&gt; true,
			&#039;headers&#039;     =&gt; array(),
			&#039;body&#039;        =&gt; $content,
			&#039;timeout&#039;     =&gt; 60,
		);

		$response = $this-&gt;make_request(&#039;upload_write&#039;, $params, $args);

		if (is_wp_error($response)) return $response;
	}

	/**
	 * This function will make a API request andcheck the response. Returns the response or a WordPress error.
	 *
	 * @param string $endpoint - the API endpoint
	 * @param array  $params   - the API request parameters
	 * @param array  $args     - an array of request options
	 *
	 * @return array|WP_Error - returns an array response or WP_Error
	 */
	private function make_request($endpoint, $params, $args) {
		$api_response = wp_remote_request($this-&gt;apiep . &#039;/&#039;. $endpoint . &#039;?&#039; . http_build_query($params), $args);

		if (is_wp_error($api_response)) {
			return $api_response;
		}

		$response_code = wp_remote_retrieve_response_code($api_response);
		if ($response_code &lt; 200 || $response_code &gt;= 300) {
			return new WP_Error(&#039;unexpected_response_code&#039;, &#039;pCloud &#039; . $endpoint . &#039;: returned an unexpected response code: &#039;. $response_code . &#039; response: &#039;.json_encode($api_response));
		}

		$response_body = wp_remote_retrieve_body($api_response);
		if (empty($response_body) || !is_string($response_body)) {
			return new WP_Error(&#039;no_response_body&#039;, &#039;pCloud &#039; . $endpoint . &#039;: returned no response body: &#039; . json_encode($api_response));
		}
		
		$response_array = json_decode($response_body, true);
		if (!is_array($response_array)) {
			return new WP_Error(&#039;json_decode_failed&#039;, &#039;pCloud &#039; . $endpoint . &#039;: Failed to json decode: &#039; . $response_body);
		}

		return $response_array;
	}
}
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