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123 lines
2.6 KiB
PHP
123 lines
2.6 KiB
PHP
<?php
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/**
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* Dropbox Files Downloader
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*
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* @package Inpsyde\BackWPup
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*/
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/**
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* Class BackWPup_Destination_Dropbox_Downloader
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*
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* @since 3.5.0
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* @package Inpsyde\BackWPup
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*/
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final class BackWPup_Destination_Dropbox_Downloader implements BackWPup_Destination_Downloader_Interface {
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const OPTION_ROOT = 'dropboxroot';
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const OPTION_TOKEN = 'dropboxtoken';
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/**
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* @var \BackWpUp_Destination_Downloader_Data
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*/
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private $data;
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/**
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* @var resource
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*/
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private $local_file_handler;
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/**
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* @var BackWPup_Destination_Dropbox_API
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*/
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private $dropbox_api;
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/**
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* BackWPup_Destination_Dropbox_Downloader constructor
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*
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* @param \BackWpUp_Destination_Downloader_Data $data
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*
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* @throws \BackWPup_Destination_Dropbox_API_Exception
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*/
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public function __construct( BackWpUp_Destination_Downloader_Data $data ) {
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$this->data = $data;
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$this->dropbox_api();
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}
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/**
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* Clean up things
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*/
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public function __destruct() {
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fclose( $this->local_file_handler );
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}
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/**
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* @inheritdoc
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*/
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public function download_chunk( $start_byte, $end_byte ) {
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$this->local_file_handler( $start_byte );
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try {
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$data = $this->dropbox_api->download(
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array( 'path' => $this->data->source_file_path() ),
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$start_byte,
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$end_byte
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);
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$bytes = (int) fwrite( $this->local_file_handler, $data );
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if ( $bytes === 0 ) {
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throw new \RuntimeException( __( 'Could not write data to file.', 'backwpup' ) );
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}
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} catch ( \Exception $e ) {
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BackWPup_Admin::message( 'Dropbox: ' . $e->getMessage() );
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}
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}
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/**
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* @inheritdoc
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*/
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public function calculate_size() {
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$metadata = $this->dropbox_api->filesGetMetadata( array( 'path' => $this->data->source_file_path() ) );
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return $metadata['size'];
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}
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/**
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* Set local file hanlder
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*
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* @param int $start_byte
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*/
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private function local_file_handler( $start_byte ) {
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if ( is_resource( $this->local_file_handler ) ) {
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return;
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}
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// Open file; write mode if $start_byte is 0, else append
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$this->local_file_handler = fopen( $this->data->local_file_path(), $start_byte == 0 ? 'wb' : 'ab' );
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if ( ! is_resource( $this->local_file_handler ) ) {
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throw new \RuntimeException( __( 'File could not be opened for writing.', 'backwpup' ) );
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}
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}
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/**
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* Set the dropbox api instance
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*
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* @return $this
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* @throws \BackWPup_Destination_Dropbox_API_Exception
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*/
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private function dropbox_api() {
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$this->dropbox_api = new \BackWPup_Destination_Dropbox_API(
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\BackWPup_Option::get( $this->data->job_id(), self::OPTION_ROOT )
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);
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$this->dropbox_api->setOAuthTokens( \BackWPup_Option::get( $this->data->job_id(), self::OPTION_TOKEN ) );
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}
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}
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