09ef1f000f
- Theme: momentry (custom theme with REST API routes) - Plugins: code-snippets (contains all API proxies) - Languages: zh_TW translations - Excludes: cache, backups, uploads, logs
142 lines
4.9 KiB
PHP
142 lines
4.9 KiB
PHP
<?php
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/**
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* Copyright (C) 2014-2025 ServMask Inc.
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*
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* Attribution: This code is part of the All-in-One WP Migration plugin, developed by
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*
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* ███████╗███████╗██████╗ ██╗ ██╗███╗ ███╗ █████╗ ███████╗██╗ ██╗
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* ██╔════╝██╔════╝██╔══██╗██║ ██║████╗ ████║██╔══██╗██╔════╝██║ ██╔╝
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* ███████╗█████╗ ██████╔╝██║ ██║██╔████╔██║███████║███████╗█████╔╝
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* ╚════██║██╔══╝ ██╔══██╗╚██╗ ██╔╝██║╚██╔╝██║██╔══██║╚════██║██╔═██╗
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* ███████║███████╗██║ ██║ ╚████╔╝ ██║ ╚═╝ ██║██║ ██║███████║██║ ██╗
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* ╚══════╝╚══════╝╚═╝ ╚═╝ ╚═══╝ ╚═╝ ╚═╝╚═╝ ╚═╝╚══════╝╚═╝ ╚═╝
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*/
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if ( ! defined( 'ABSPATH' ) ) {
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die( 'Kangaroos cannot jump here' );
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}
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class Ai1wm_Export_Archive_Crc {
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public static function execute( $params ) {
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$archive_bytes_read = 0;
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// Set progress
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Ai1wm_Status::info( __( 'Calculating archive checksum...', 'all-in-one-wp-migration' ) );
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// Set archive bytes remaining
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if ( isset( $params['archive_bytes_remaining'] ) ) {
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$archive_bytes_remaining = (int) $params['archive_bytes_remaining'];
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} else {
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$archive_bytes_remaining = ai1wm_archive_bytes( $params );
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}
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// Set archive bytes offset
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if ( isset( $params['archive_bytes_offset'] ) ) {
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$archive_bytes_offset = (int) $params['archive_bytes_offset'];
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} else {
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$archive_bytes_offset = 0;
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}
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// Set archive CRC value
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$archive_crc_value = null;
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if ( isset( $params['archive_crc_value'] ) ) {
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$archive_crc_value = $params['archive_crc_value'];
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}
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// Flag to hold if file data has been processed
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$completed = true;
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// Start time
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$start = microtime( true );
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// Initialize CRC context for this chunk
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$hash_ctx = Ai1wm_Crc::init_crc32();
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// Open archive for reading
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if ( ( $file_handle = ai1wm_open( ai1wm_archive_path( $params ), 'rb' ) ) ) {
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if ( fseek( $file_handle, $archive_bytes_offset, SEEK_SET ) !== -1 ) {
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// Process file in chunks
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while ( $archive_bytes_remaining > 0 ) {
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if ( ( $file_content = ai1wm_read( $file_handle, min( Ai1wm_Archiver::READ_CHUNK_SIZE, $archive_bytes_remaining ) ) ) !== false ) {
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// Empty read indicates EOF
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if ( strlen( $file_content ) === 0 ) {
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break;
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}
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// Add the amount of bytes we read
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$archive_bytes_read += strlen( $file_content );
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// Subtract the amount of bytes we read
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$archive_bytes_remaining -= strlen( $file_content );
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// Update CRC with original content
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Ai1wm_Crc::update_crc32( $hash_ctx, $file_content );
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}
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// Time elapsed
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if ( ( $timeout = apply_filters( 'ai1wm_completed_timeout', 10 ) ) ) {
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if ( ( microtime( true ) - $start ) > $timeout ) {
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$completed = false;
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break;
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}
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}
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}
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// Get archive bytes offset
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$archive_bytes_offset += $archive_bytes_read;
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}
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ai1wm_close( $file_handle );
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}
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// Combine and finalize CRC
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if ( empty( $archive_crc_value ) ) {
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$params['archive_crc_value'] = Ai1wm_Crc::finalize_crc32( $hash_ctx );
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} else {
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$params['archive_crc_value'] = Ai1wm_Crc::combine_crc32( $archive_crc_value, Ai1wm_Crc::finalize_crc32( $hash_ctx ), $archive_bytes_read );
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}
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// End of the archive file?
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if ( $completed ) {
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// St archive bytes remaining
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unset( $params['archive_bytes_remaining'] );
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// Unset archive offset
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unset( $params['archive_bytes_offset'] );
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// Unset completed flag
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unset( $params['completed'] );
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} else {
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// St archive bytes remaining
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$params['archive_bytes_remaining'] = $archive_bytes_remaining;
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// Set archive offset
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$params['archive_bytes_offset'] = $archive_bytes_offset;
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// Set completed flag
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$params['completed'] = $completed;
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}
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return $params;
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}
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}
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