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<?php
/**
* Create serialized/commonpasswords.cdb
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
* http://www.gnu.org/copyleft/gpl.html
*
* @file
* @ingroup Maintenance
*/
require_once __DIR__ . '/Maintenance.php';
/**
* Maintenance script to create common password cdb database.
*
* Meant to take a file like those from
* https://github.com/danielmiessler/SecLists
* For example:
* https://github.com/danielmiessler/SecLists/blob/fe2b40dd84/Passwords/rockyou.txt?raw=true
*
* @see serialized/commonpasswords.cdb and PasswordPolicyChecks::checkPopularPasswordBlacklist
* @since 1.27
* @ingroup Maintenance
*/
class GenerateCommonPassword extends Maintenance {
public function __construct() {
global $IP;
parent::__construct();
$this->addDescription( 'Generate CDB file of common passwords' );
$this->addOption( 'limit', "Max number of passwords to write", false, true, 'l' );
$this->addArg( 'inputfile', 'List of passwords (one per line) to use or - for stdin', true );
$this->addArg(
'output',
"Location to write CDB file to (Try $IP/serialized/commonpasswords.cdb)",
true
);
}
public function execute() {
$limit = (int)$this->getOption( 'limit', PHP_INT_MAX );
$langEn = Language::factory( 'en' );
$infile = $this->getArg( 0 );
if ( $infile === '-' ) {
$infile = 'php://stdin';
}
$outfile = $this->getArg( 1 );
if ( !is_readable( $infile ) && $infile !== 'php://stdin' ) {
$this->error( "Cannot open input file $infile for reading", 1 );
}
$file = fopen( $infile, 'r' );
if ( $file === false ) {
$this->error( "Cannot read input file $infile", 1 );
}
try {
$db = \Cdb\Writer::open( $outfile );
$alreadyWritten = [];
$skipped = 0;
for ( $i = 0; ( $i - $skipped ) < $limit; $i++ ) {
if ( feof( $file ) ) {
break;
}
$rawLine = fgets( $file );
if ( $rawLine === false ) {
$this->error( "Error reading input file" );
break;
}
if ( substr( $rawLine, -1 ) !== "\n" && !feof( $file ) ) {
// We're assuming that this just won't happen.
$this->error( "fgets did not return whole line at $i??" );
}
$line = $langEn->lc( trim( $rawLine ) );
if ( $line === '' ) {
$this->error( "Line number " . ( $i + 1 ) . " is blank?" );
$skipped++;
continue;
}
if ( isset( $alreadyWritten[$line] ) ) {
$this->output( "Password '$line' already written (line " . ( $i + 1 ) .")\n" );
$skipped++;
continue;
}
$alreadyWritten[$line] = true;
$db->set( $line, $i + 1 - $skipped );
}
// All caps, so cannot conflict with potential password
$db->set( '_TOTALENTRIES', $i - $skipped );
$db->close();
$this->output( "Successfully wrote " . ( $i - $skipped ) .
" (out of $i) passwords to $outfile\n"
);
} catch ( \Cdb\Exception $e ) {
$this->error( "Error writing cdb file: " . $e->getMessage(), 2 );
}
}
}
$maintClass = "GenerateCommonPassword";
require_once RUN_MAINTENANCE_IF_MAIN;
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