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<?php
/*
+=====================================================================+
| _ _ _ _ ____ |
| | \ | (_)_ __ (_) __ _/ ___| ___ __ _ _ __ _ __ ___ _ __ |
| | \| | | '_ \ | |/ _` \___ \ / __/ _` | '_ \| '_ \ / _ \ '__| |
| | |\ | | | | || | (_| |___) | (_| (_| | | | | | | | __/ | |
| |_| \_|_|_| |_|/ |\__,_|____/ \___\__,_|_| |_|_| |_|\___|_| |
| |__/ |
| |
| (c) NinTechNet ~ https://nintechnet.com/ |
+=====================================================================+ // sa+i18n
*/
if (! defined( 'ABSPATH' ) ) { die( 'Forbidden' ); }
if (! file_exists( NSCAN_SNAPSHOT ) ) {
wp_die( esc_html__('Error: Missing NSCAN_SNAPSHOT file.', 'ninjascanner' ) );
}
$snapshot = unserialize(
file_get_contents( NSCAN_SNAPSHOT ),
['allowed_classes' => false ]
);
if ( empty( $snapshot['abspath'] ) ) {
wp_die( esc_html__('Error: Snapshot is corrupted (abspath).', 'ninjascanner') );
}
if ( empty( $snapshot['abspath'][$file]['type'] ) ) {
wp_die( esc_html__('Error: No match found (local file).', 'ninjascanner') );
}
// WordPress core file:
if ( $snapshot['abspath'][$file]['type'] == 'core' ) {
$version = $snapshot['version'];
if (! empty( $snapshot['locale'] ) ) {
$locale = "-{$snapshot['locale']}";
} else {
$locale = '';
}
// Clean-up the path (order matters):
$rpath = str_replace( WP_PLUGIN_DIR, 'wp-content/plugins', $file );
$rpath = str_replace( WP_CONTENT_DIR, 'wp-content', $rpath );
$rpath = str_replace( ABSPATH, '', $rpath );
// Check if we have a local copy of the installation package:
if ( file_exists( NSCAN_CACHEDIR ."/wordpress-{$version}{$locale}.zip" ) ) {
// Fetch it from the ZIP file:
$tmp_remote_content = nscan_read_zipped_file(
NSCAN_CACHEDIR ."/wordpress-{$version}{$locale}.zip",
"wordpress/{$rpath}"
);
// Download it from wordpress.org:
} else {
$url = sprintf( NSCAN_SVN_CORE, $version );
$tmp_remote_content = nscan_download_original( "{$url}/{$rpath}" );
}
// Themes & plugins:
} else {
// Plugin:
if ( $snapshot['abspath'][$file]['type'] == 'plugin' ) {
// Check if we have a local copy of the ZIP package:
// Clean-up path:
$rpath = str_replace(
WP_PLUGIN_DIR ."/{$snapshot['abspath'][$file]['slug']}/",
'',
$file
);
// Search in the cache folder (free open-source plugins):
if ( file_exists( NSCAN_CACHEDIR ."/plugin_{$snapshot['abspath'][$file]['slug']}.{$snapshot['abspath'][$file]['version']}.zip" ) ) {
// Fetch it from the ZIP file:
$tmp_remote_content = nscan_read_zipped_file(
NSCAN_CACHEDIR ."/plugin_{$snapshot['abspath'][$file]['slug']}.{$snapshot['abspath'][$file]['version']}.zip",
$snapshot['abspath'][$file]['slug'] .'/'. $rpath
);
// Or search in the user "/local" folder (premium plugins):
} elseif ( file_exists( NSCAN_LOCAL ."/{$snapshot['abspath'][$file]['slug']}.{$snapshot['abspath'][$file]['version']}.zip" ) ) {
// Fetch it from the ZIP file:
$tmp_remote_content = nscan_read_zipped_file(
NSCAN_LOCAL ."/{$snapshot['abspath'][$file]['slug']}.{$snapshot['abspath'][$file]['version']}.zip",
$snapshot['abspath'][$file]['slug'] .'/'. $rpath
);
// No local copy, try to download it from wordpress.org:
} else {
$url = sprintf(
NSCAN_SVN_PLUGINS,
$snapshot['abspath'][$file]['slug'],
$snapshot['abspath'][$file]['version']
);
$tmp_remote_content = nscan_download_original( "{$url}/{$rpath}" );
}
// Theme:
} elseif ( $snapshot['abspath'][$file]['type'] == 'theme' ) {
// Check if we have a local copy of the ZIP package:
// Clean-up path:
$rpath = str_replace(
WP_CONTENT_DIR ."/themes/{$snapshot['abspath'][$file]['slug']}/",
'',
$file
);
// Search in the cache folder (free open-source themes):
if ( file_exists( NSCAN_CACHEDIR ."/theme_{$snapshot['abspath'][$file]['slug']}.{$snapshot['abspath'][$file]['version']}.zip" ) ) {
// Fetch it from the ZIP file:
$tmp_remote_content = nscan_read_zipped_file(
NSCAN_CACHEDIR ."/theme_{$snapshot['abspath'][$file]['slug']}.{$snapshot['abspath'][$file]['version']}.zip",
$snapshot['abspath'][$file]['slug'] .'/'. $rpath
);
// Or search in the user "/local" folder (premium themes):
} elseif ( file_exists( NSCAN_LOCAL ."/{$snapshot['abspath'][$file]['slug']}.{$snapshot['abspath'][$file]['version']}.zip" ) ) {
// Fetch it from the ZIP file:
$tmp_remote_content = nscan_read_zipped_file(
NSCAN_LOCAL ."/{$snapshot['abspath'][$file]['slug']}.{$snapshot['abspath'][$file]['version']}.zip",
$snapshot['abspath'][$file]['slug'] .'/'. $rpath
);
// No local copy, try to download it from wordpress.org:
} else {
$url = sprintf(
NSCAN_SVN_THEMES,
$snapshot['abspath'][$file]['slug'],
$snapshot['abspath'][$file]['version']
);
$tmp_remote_content = nscan_download_original( "{$url}/{$rpath}" );
}
} else {
wp_die( esc_html__('Error: No match found (file type).', 'ninjascanner') );
}
}
// Read local file:
$local_end = '';
$local_content = explode( "\n", file_get_contents( $file ) );
if ( ! empty( $local_content[0] ) ) {
if ( preg_match( "/\r$/", $local_content[0] ) ) {
$local_content = array_map('rtrim', $local_content);
$local_end = 'cr';
} else {
$local_end = 'lf';
}
}
// Turn remote content into an array:
$remote_end = '';
$remote_content = explode( "\n", $tmp_remote_content );
if ( ! empty( $remote_content[0] ) ) {
if ( preg_match( "/\r$/", $remote_content[0] ) ) {
$remote_content = array_map('rtrim', $remote_content);
$remote_end = 'cr';
} else {
$remote_end = 'lf';
}
}
// Return diff:
$diff_output = nscan_diff( $remote_content, $local_content );
// Display it:
if ( empty( $diff_output ) ) {
if ( $local_end != $remote_end ) {
wp_die( esc_html_e('Those files are identical but have different line endings (LF vs CRLF): different line endings will always trigger a warning from the file integrity scanner because their checksums will not match.', 'ninjascanner' ) );
}
wp_die( esc_html_e('No difference found: the local file matches the original one.', 'ninjascanner' ) );
}
scan_compare_template( $diff_output, $file, $local_end, $remote_end );
exit;
// =====================================================================
// Download the original file from the wordpress.org repo.
// Applies to themes, plugins or core files only.
// (This function exists also in file_restore.php).
function nscan_download_original( $file ) {
global $wp_version;
$res = wp_remote_get(
$file,
array(
'timeout' => NSCAN_CURL_TIMEOUT,
'httpversion' => '1.1' ,
'user-agent' => 'Mozilla/5.0 (compatible; NinjaScanner/'.
NSCAN_VERSION .'; WordPress/'. $wp_version . ')',
'sslverify' => true
)
);
if (! is_wp_error( $res ) ) {
if ( $res['response']['code'] == 200 ) {
// Return the file content:
return $res['body'];
} else {
// HTTP error:
wp_die( sprintf(
esc_html__('Error: Cannot download the original file from wordpress.org (%s).', 'ninjascanner'),
(int)$res['response']['code']
) );
}
}
// cURL error:
wp_die( sprintf(
esc_html__('Error: Cannot download the original file from wordpress.org (%s).', 'ninjascanner'),
htmlspecialchars( $res->get_error_message() )
) );
}
// =====================================================================
// Return the differences between two files.
function nscan_diff( $remote, $local ) {
// Load the diff class:
require __DIR__ .'/vendor/diff/Diff.php';
$diff = new nscanDiff( $remote, $local );
require __DIR__ .'/vendor/diff/Diff/Renderer/Html/SideBySide.php';
$renderer = new nscanDiff_Renderer_Html_SideBySide;
return $diff->Render( $renderer );
}
// =====================================================================
// Display files diff in two windows side-by-side
function scan_compare_template( $output, $file, $local_end, $remote_end ) {
?><!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1//EN" "http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en">
<head>
<style>.Diff tbody th,body{font-size:11px;font-weight:400}body{background:#F7F7F7;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Oxygen-Sans,Ubuntu,Cantarell,"Helvetica Neue",sans-serif;color:#312A2A}.Diff tbody th,.Diff thead th{background:#ECECEC;color:#7F7F7F}table{border:1px solid #BFBFBF}.toline{border-left:1px solid #BFBFBF}.Diff{width:100%;border-collapse:collapse;border-spacing:0;empty-cells:show}.Diff thead th{text-align:left;padding:4px;border-bottom:1px solid #BFBFBF}.Diff tbody th{text-align:right;width:3em;padding:1px 2px;border-right:1px solid #BFBFBF;vertical-align:top}.Diff td{padding:1px 2px;font-family:Consolas,monospace;font-size:14px}.CDelete td.Left,.CReplace .Left,.dsbs .CInsert td.Left{background:#FDD}.CDelete td.Right,.CReplace .Right,.dsbs .CInsert td.Right{background:#DFD}.Diff del,.Diff ins{text-decoration:none}.dsbs .CReplace ins{background:#9E9}.dsbs .CReplace del{background:#E99}.Diff .Skipped{background:#f7f7f7}pre{width:100%;overflow:auto}.nscanview{width:100%;border-collapse:collapse;border-spacing:0;empty-cells:show}.nscanview thead th{font-size:12px;border-bottom:1px solid #BFBFBF;background:#ECECEC;color:#7F7F7F;padding:4px;border-bottom:1px solid #BFBFBF}.nfw-notice{margin: 5px 0 15px;background: #fff;border: 1px solid #ccd0d4;border-left: 4px solid #fff;box-shadow: 0 1px 1px 0 rgba(0,0,0,.1);padding: 1px 12px;font-size:14px;}.nfw-notice-orange{border-left-color: #ffb900;}</style>
</head>
<body>
<table class="nscanview">
<thead>
<tr>
<th colspan="2" style="text-align:center;font-size:14px"><?php esc_html_e('File:', 'ninjascanner' )?> <?php echo htmlspecialchars( $file ) ?></th>
</tr>
</thead>
</table>
<?php
if ( $local_end != $remote_end ) {
?>
<br />
<div class="nfw-notice nfw-notice-orange"><p><?php esc_html_e('Those files have different line endings (LF vs CRLF).', 'ninjascanner' )?></p></div>
<?php
}
?>
<br />
<?php echo $output; ?>
<h3 style="text-align:center;">NinjaScanner © <?php echo date('Y') ?> <a href="https://nintechnet.com/" target="_blank" title="The Ninja Technologies Network">NinTechNet</a></h3>
</body>
</html><?php
}
// =====================================================================
// EOF