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Re: squid access list based on sql database , is it possible ?

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Thank you , can you  show me a directive with that as an example plz ?


-----Original Message-----
From: squid-users [mailto:squid-users-bounces@xxxxxxxxxxxxxxxxxxxxx] On Behalf Of Yuri Voinov
Sent: Tuesday, February 10, 2015 11:48 AM
To: squid-users@xxxxxxxxxxxxxxxxxxxxx
Subject: Re:  squid access list based on sql database , is it possible ?

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basic_db_auth helper is included in Squid distribution.

#!/usr/bin/perl

use strict;
use Pod::Usage;
use Getopt::Long;

=pod

=head1 NAME

 basic_db_auth - Database auth helper for Squid

=head1 SYNOPSIS

 basic_db_auth [options]

=head1 DESCRIPTOIN

This program verifies username & password to a database

=head1 OPTIONS

=over 12

=item B<--debug>

Write debug info to stderr.

=item B<--dsn>

Database DSN. Default "DBI:mysql:database=squid"

=item B<--user>

Database User

=item B<--password>

Database password

=item B<--table>

Database table. Default "passwd".

=item B<--usercol>

Username column. Default "user".

=item B<--passwdcol>

Password column. Default "password".

=item B<--cond>

Condition, defaults to enabled=1. Specify 1 or "" for no condition If you use --joomla flag, this condition will be changed to block=0

=item B<--plaintext>

Database contains plain-text passwords

=item B<--md5>

Database contains unsalted md5 passwords

=item B<--salt>

Selects the correct salt to evaluate passwords

=item B<--persist>

Keep a persistent database connection open between queries.

=item B<--joomla>

Tells helper that user database is Joomla DB.  So their unusual salt hashing is understood.

=back

=head1 AUTHOR

This program was written by
I<Henrik Nordstrom <henrik@xxxxxxxxxxxxxxxxxxx>> and I<Luis Daniel Lucio Quiroz <dlucio@xxxxxxxxxxx>>

This manual was written by I<Henrik Nordstrom <henrik@xxxxxxxxxxxxxxxxxxx>>

=head1 COPYRIGHT

 * Copyright (C) 1996-2015 The Squid Software Foundation and contributors
 *
 * Squid software is distributed under GPLv2+ license and includes
 * contributions from numerous individuals and organizations.
 * Please see the COPYING and CONTRIBUTORS files for details.

Copyright (C) 2007 Henrik Nordstrom <henrik@xxxxxxxxxxxxxxxxxxx> Copyright (C) 2010 Luis Daniel Lucio Quiroz <dlucio@xxxxxxxxxxx> (Joomla support) This program is free software. You may redistribute copies of it under the terms of the GNU General Public License version 2, or (at youropinion) any later version.

=head1 QUESTIONS

Questions on the usage of this program can be sent to the I<Squid Users mailing list <squid-users@xxxxxxxxxxxxxxx>>

=head1 REPORTING BUGS

Bug reports need to be made in English.
See http://wiki.squid-cache.org/SquidFaq/BugReporting for details of what you need to include with your bug report.

Report bugs or bug fixes using http://bugs.squid-cache.org/

Report serious security bugs to I<Squid Bugs <squid-bugs@xxxxxxxxxxxxxxx>>

Report ideas for new improvements to the I<Squid Developers mailing list <squid-dev@xxxxxxxxxxxxxxx>>

=head1 SEE ALSO

squid (8), GPL (7),

The Squid FAQ wiki http://wiki.squid-cache.org/SquidFaq

The Squid Configuration Manual http://www.squid-cache.org/Doc/config/

=cut

use DBI;
use Digest::MD5 qw(md5 md5_hex md5_base64);

my $dsn = "DBI:mysql:database=squid";
my $db_user = undef;
my $db_passwd = undef;
my $db_table = "passwd";
my $db_usercol = "user";
my $db_passwdcol = "password";
my $db_cond = "enabled = 1";
my $plaintext = 0;
my $md5 = 0;
my $persist = 0;
my $isjoomla = 0;
my $debug = 0;
my $hashsalt = undef;

GetOptions(
	'dsn=s' => \$dsn,
	'user=s' => \$db_user,
	'password=s' => \$db_passwd,
	'table=s' => \$db_table,
	'usercol=s' => \$db_usercol,
	'passwdcol=s' => \$db_passwdcol,
	'cond=s' => \$db_cond,
	'plaintext' => \$plaintext,
	'md5' => \$md5,
	'persist' => \$persist,
	'joomla' => \$isjoomla,
	'debug' => \$debug,
	'salt=s' => \$hashsalt,
	);

my ($_dbh, $_sth);
$db_cond = "block = 0" if $isjoomla;

sub close_db()
{
    return if !defined($_dbh);
    undef $_sth;
    $_dbh->disconnect();
    undef $_dbh;
}

sub open_db()
{
    return $_sth if defined $_sth;
    $_dbh = DBI->connect($dsn, $db_user, $db_passwd);
    if (!defined $_dbh) {
    	warn ("Could not connect to $dsn\n");
	my @driver_names = DBI->available_drivers();
	my $msg = "DSN drivers apparently installed, available:\n";
	foreach my $dn (@driver_names) {
		$msg .= "\t$dn";
	}
	warn($msg."\n");
	return undef;
    }
    my $sql_query;
    $sql_query = "SELECT $db_passwdcol FROM $db_table WHERE $db_usercol = ?" . ($db_cond ne "" ? " AND $db_cond" : "");
    $_sth = $_dbh->prepare($sql_query) || die;
    return $_sth;
}

sub check_password($$)
{
    my ($password, $key) = @_;

    if ($isjoomla){
        my $salt;
        my $key2;
        ($key2,$salt) = split (/:/, $key);
        return 1 if md5_hex($password.$salt).':'.$salt eq $key;
    }
    else{
        return 1 if defined $hashsalt && crypt($password, $hashsalt) eq $key;
        return 1 if crypt($password, $key) eq $key;
        return 1 if $md5 && md5_hex($password) eq $key;
        return 1 if $plaintext && $password eq $key;
    }

    return 0;
}

sub query_db($) {
    my ($user) = @_;
    my ($sth) = open_db() || return undef;
    if (!$sth->execute($user)) {
	close_db();
	open_db() || return undef;
	$sth->execute($user) || return undef;;
    }
    return $sth;
}
my $status;

$|=1;
while (<>) {
    my ($user, $password) = split;
    $status = "ERR";
    $user =~ s/%(..)/pack("H*", $1)/ge;
    $password =~ s/%(..)/pack("H*", $1)/ge;

    $status = "ERR database error";
    my $sth = query_db($user) || next;
    $status = "ERR unknown login";
    my $row = $sth->fetchrow_arrayref() || next;
    $status = "ERR login failure";
    next if (!check_password($password, @$row[0]));
    $status = "OK";
} continue {
    close_db() if (!$persist);
    print $status . "\n";
}


11.02.15 11:41, Ahmad пишет:
> Hi ,
> 
> I need to do an access list that get info mysql database.
> 
> 
> 
> Can squid get info of accesslist from external db coloum ?
> 
> 
> 
> cheers
> 
> 
> 
> 
> _______________________________________________ squid-users mailing 
> list squid-users@xxxxxxxxxxxxxxxxxxxxx 
> http://lists.squid-cache.org/listinfo/squid-users
> 
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http://lists.squid-cache.org/listinfo/squid-users





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