ADOdb.php

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<?php
/*
V5.19  23-Apr-2014  (c) 2000-2014 John Lim (jlim#natsoft.com). All rights reserved.
  Released under both BSD license and Lesser GPL library license.
  Whenever there is any discrepancy between the two licenses,
  the BSD license will take precedence. See License.txt.
  Set tabs to 4 for best viewing.

  Latest version is available at http://adodb.sourceforge.net

    Original Authors: Martin Jansen <mj#php.net>
    Richard Tango-Lowy <richtl#arscognita.com>
*/

require_once 'Auth/Container.php';
require_once 'adodb.inc.php';
require_once 'adodb-pear.inc.php';
require_once 'adodb-errorpear.inc.php';

class Auth_Container_ADOdb extends Auth_Container
{

    var $options = array();

    var $db = null;
    var $dsn = '';

    var $activeUser = '';

    // {{{ Constructor

    function Auth_Container_ADOdb($dsn)
    {
        $this->_setDefaults();

        if (is_array($dsn)) {
            $this->_parseOptions($dsn);

            if (empty($this->options['dsn'])) {
                PEAR::raiseError('No connection parameters specified!');
            }
        } else {
            // Extract db_type from dsn string.
            $this->options['dsn'] = $dsn;
        }
    }

    // }}}
    // {{{ _connect()

     function _connect($dsn)
    {
        if (is_string($dsn) || is_array($dsn)) {
            if(!$this->db) {
                $this->db = ADONewConnection($dsn);
                if( $err = ADODB_Pear_error() ) {
                    return PEAR::raiseError($err);
                }
            }

        } else {
            return PEAR::raiseError('The given dsn was not valid in file ' . __FILE__ . ' at line ' . __LINE__,
                                    41,
                                    PEAR_ERROR_RETURN,
                                    null,
                                    null
                                    );
        }

        if(!$this->db) {
            return PEAR::raiseError(ADODB_Pear_error());
        } else {
            return true;
        }
    }

    // }}}
    // {{{ _prepare()

    function _prepare()
    {
        if(!$this->db) {
            $res = $this->_connect($this->options['dsn']);
        }
        return true;
    }

    // }}}
    // {{{ query()

    function query($query)
    {
        $err = $this->_prepare();
        if ($err !== true) {
            return $err;
        }
        return $this->db->query($query);
    }

    // }}}
    // {{{ _setDefaults()

    function _setDefaults()
    {
        $this->options['db_type']   = 'mysql';
        $this->options['table']       = 'auth';
        $this->options['usernamecol'] = 'username';
        $this->options['passwordcol'] = 'password';
        $this->options['dsn']         = '';
        $this->options['db_fields']   = '';
        $this->options['cryptType']   = 'md5';
    }

    // }}}
    // {{{ _parseOptions()

    function _parseOptions($array)
    {
        foreach ($array as $key => $value) {
            if (isset($this->options[$key])) {
                $this->options[$key] = $value;
            }
        }

        /* Include additional fields if they exist */
        if(!empty($this->options['db_fields'])){
            if(is_array($this->options['db_fields'])){
                $this->options['db_fields'] = join($this->options['db_fields'], ', ');
            }
            $this->options['db_fields'] = ', '.$this->options['db_fields'];
        }
    }

    // }}}
    // {{{ fetchData()

    function fetchData($username, $password)
    {
        // Prepare for a database query
        $err = $this->_prepare();
        if ($err !== true) {
            return PEAR::raiseError($err->getMessage(), $err->getCode());
        }

        // Find if db_fields contains a *, i so assume all col are selected
        if(strstr($this->options['db_fields'], '*')){
            $sql_from = "*";
        }
        else{
            $sql_from = $this->options['usernamecol'] . ", ".$this->options['passwordcol'].$this->options['db_fields'];
        }

        $query = "SELECT ".$sql_from.
                " FROM ".$this->options['table'].
                " WHERE ".$this->options['usernamecol']." = " . $this->db->Quote($username);

        $ADODB_FETCH_MODE = ADODB_FETCH_ASSOC;
        $rset = $this->db->Execute( $query );
        $res = $rset->fetchRow();

        if (DB::isError($res)) {
            return PEAR::raiseError($res->getMessage(), $res->getCode());
        }
        if (!is_array($res)) {
            $this->activeUser = '';
            return false;
        }
        if ($this->verifyPassword(trim($password, "\r\n"),
                                  trim($res[$this->options['passwordcol']], "\r\n"),
                                  $this->options['cryptType'])) {
            // Store additional field values in the session
            foreach ($res as $key => $value) {
                if ($key == $this->options['passwordcol'] ||
                    $key == $this->options['usernamecol']) {
                    continue;
                }
                // Use reference to the auth object if exists
                // This is because the auth session variable can change so a static call to setAuthData does not make sence
                if(is_object($this->_auth_obj)){
                    $this->_auth_obj->setAuthData($key, $value);
                } else {
                    Auth::setAuthData($key, $value);
                }
            }

            return true;
        }

        $this->activeUser = $res[$this->options['usernamecol']];
        return false;
    }

    // }}}
    // {{{ listUsers()

    function listUsers()
    {
        $err = $this->_prepare();
        if ($err !== true) {
            return PEAR::raiseError($err->getMessage(), $err->getCode());
        }

        $retVal = array();

        // Find if db_fileds contains a *, i so assume all col are selected
        if(strstr($this->options['db_fields'], '*')){
            $sql_from = "*";
        }
        else{
            $sql_from = $this->options['usernamecol'] . ", ".$this->options['passwordcol'].$this->options['db_fields'];
        }

        $query = sprintf("SELECT %s FROM %s",
                         $sql_from,
                         $this->options['table']
                         );
        $res = $this->db->getAll($query, null, DB_FETCHMODE_ASSOC);

        if (DB::isError($res)) {
            return PEAR::raiseError($res->getMessage(), $res->getCode());
        } else {
            foreach ($res as $user) {
                $user['username'] = $user[$this->options['usernamecol']];
                $retVal[] = $user;
            }
        }
        return $retVal;
    }

    // }}}
    // {{{ addUser()

    function addUser($username, $password, $additional = "")
    {
        if (function_exists($this->options['cryptType'])) {
            $cryptFunction = $this->options['cryptType'];
        } else {
            $cryptFunction = 'md5';
        }

        $additional_key   = '';
        $additional_value = '';

        if (is_array($additional)) {
            foreach ($additional as $key => $value) {
                $additional_key .= ', ' . $key;
                $additional_value .= ", '" . $value . "'";
            }
        }

        $query = sprintf("INSERT INTO %s (%s, %s%s) VALUES ('%s', '%s'%s)",
                         $this->options['table'],
                         $this->options['usernamecol'],
                         $this->options['passwordcol'],
                         $additional_key,
                         $username,
                         $cryptFunction($password),
                         $additional_value
                         );

        $res = $this->query($query);

        if (DB::isError($res)) {
           return PEAR::raiseError($res->getMessage(), $res->getCode());
        } else {
          return true;
        }
    }

    // }}}
    // {{{ removeUser()

    function removeUser($username)
    {
        $query = sprintf("DELETE FROM %s WHERE %s = '%s'",
                         $this->options['table'],
                         $this->options['usernamecol'],
                         $username
                         );

        $res = $this->query($query);

        if (DB::isError($res)) {
           return PEAR::raiseError($res->getMessage(), $res->getCode());
        } else {
          return true;
        }
    }

    // }}}
}

function showDbg( $string ) {
    print "
-- $string</P>";
}
function dump( $var, $str, $vardump = false ) {
    print "<H4>$str</H4><pre>";
    ( !$vardump ) ? ( print_r( $var )) : ( var_dump( $var ));
    print "</pre>";
}