include external libs in a subdir to make install easier

darcs-hash:20080822131714-84dde-6978424ded2ed1041a65142a25560654ac717fcd.gz

1 files changed, 831 insertions, 0 deletions

diff --git a/extlib/DB/msql.php b/extlib/DB/msql.php
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@@ -0,0 +1,831 @@
+<?php
+
+/* vim: set expandtab tabstop=4 shiftwidth=4 softtabstop=4: */
+
+/**
+ * The PEAR DB driver for PHP's msql extension
+ * for interacting with Mini SQL databases
+ *
+ * PHP's mSQL extension did weird things with NULL values prior to PHP
+ * 4.3.11 and 5.0.4.  Make sure your version of PHP meets or exceeds
+ * those versions.
+ *
+ * PHP versions 4 and 5
+ *
+ * LICENSE: This source file is subject to version 3.0 of the PHP license
+ * that is available through the world-wide-web at the following URI:
+ * http://www.php.net/license/3_0.txt.  If you did not receive a copy of
+ * the PHP License and are unable to obtain it through the web, please
+ * send a note to license@php.net so we can mail you a copy immediately.
+ *
+ * @category   Database
+ * @package    DB
+ * @author     Daniel Convissor <danielc@php.net>
+ * @copyright  1997-2007 The PHP Group
+ * @license    http://www.php.net/license/3_0.txt  PHP License 3.0
+ * @version    CVS: $Id: msql.php,v 1.64 2007/09/21 13:40:41 aharvey Exp $
+ * @link       http://pear.php.net/package/DB
+ */
+
+/**
+ * Obtain the DB_common class so it can be extended from
+ */
+require_once 'DB/common.php';
+
+/**
+ * The methods PEAR DB uses to interact with PHP's msql extension
+ * for interacting with Mini SQL databases
+ *
+ * These methods overload the ones declared in DB_common.
+ *
+ * PHP's mSQL extension did weird things with NULL values prior to PHP
+ * 4.3.11 and 5.0.4.  Make sure your version of PHP meets or exceeds
+ * those versions.
+ *
+ * @category   Database
+ * @package    DB
+ * @author     Daniel Convissor <danielc@php.net>
+ * @copyright  1997-2007 The PHP Group
+ * @license    http://www.php.net/license/3_0.txt  PHP License 3.0
+ * @version    Release: 1.7.14RC1
+ * @link       http://pear.php.net/package/DB
+ * @since      Class not functional until Release 1.7.0
+ */
+class DB_msql extends DB_common
+{
+    // {{{ properties
+
+    /**
+     * The DB driver type (mysql, oci8, odbc, etc.)
+     * @var string
+     */
+    var $phptype = 'msql';
+
+    /**
+     * The database syntax variant to be used (db2, access, etc.), if any
+     * @var string
+     */
+    var $dbsyntax = 'msql';
+
+    /**
+     * The capabilities of this DB implementation
+     *
+     * The 'new_link' element contains the PHP version that first provided
+     * new_link support for this DBMS.  Contains false if it's unsupported.
+     *
+     * Meaning of the 'limit' element:
+     *   + 'emulate' = emulate with fetch row by number
+     *   + 'alter'   = alter the query
+     *   + false     = skip rows
+     *
+     * @var array
+     */
+    var $features = array(
+        'limit'         => 'emulate',
+        'new_link'      => false,
+        'numrows'       => true,
+        'pconnect'      => true,
+        'prepare'       => false,
+        'ssl'           => false,
+        'transactions'  => false,
+    );
+
+    /**
+     * A mapping of native error codes to DB error codes
+     * @var array
+     */
+    var $errorcode_map = array(
+    );
+
+    /**
+     * The raw database connection created by PHP
+     * @var resource
+     */
+    var $connection;
+
+    /**
+     * The DSN information for connecting to a database
+     * @var array
+     */
+    var $dsn = array();
+
+
+    /**
+     * The query result resource created by PHP
+     *
+     * Used to make affectedRows() work.  Only contains the result for
+     * data manipulation queries.  Contains false for other queries.
+     *
+     * @var resource
+     * @access private
+     */
+    var $_result;
+
+
+    // }}}
+    // {{{ constructor
+
+    /**
+     * This constructor calls <kbd>$this->DB_common()</kbd>
+     *
+     * @return void
+     */
+    function DB_msql()
+    {
+        $this->DB_common();
+    }
+
+    // }}}
+    // {{{ connect()
+
+    /**
+     * Connect to the database server, log in and open the database
+     *
+     * Don't call this method directly.  Use DB::connect() instead.
+     *
+     * Example of how to connect:
+     * <code>
+     * require_once 'DB.php';
+     * 
+     * // $dsn = 'msql://hostname/dbname';  // use a TCP connection
+     * $dsn = 'msql:///dbname';             // use a socket
+     * $options = array(
+     *     'portability' => DB_PORTABILITY_ALL,
+     * );
+     * 
+     * $db = DB::connect($dsn, $options);
+     * if (PEAR::isError($db)) {
+     *     die($db->getMessage());
+     * }
+     * </code>
+     *
+     * @param array $dsn         the data source name
+     * @param bool  $persistent  should the connection be persistent?
+     *
+     * @return int  DB_OK on success. A DB_Error object on failure.
+     */
+    function connect($dsn, $persistent = false)
+    {
+        if (!PEAR::loadExtension('msql')) {
+            return $this->raiseError(DB_ERROR_EXTENSION_NOT_FOUND);
+        }
+
+        $this->dsn = $dsn;
+        if ($dsn['dbsyntax']) {
+            $this->dbsyntax = $dsn['dbsyntax'];
+        }
+
+        $params = array();
+        if ($dsn['hostspec']) {
+            $params[] = $dsn['port']
+                        ? $dsn['hostspec'] . ',' . $dsn['port']
+                        : $dsn['hostspec'];
+        }
+
+        $connect_function = $persistent ? 'msql_pconnect' : 'msql_connect';
+
+        $ini = ini_get('track_errors');
+        $php_errormsg = '';
+        if ($ini) {
+            $this->connection = @call_user_func_array($connect_function,
+                                                      $params);
+        } else {
+            @ini_set('track_errors', 1);
+            $this->connection = @call_user_func_array($connect_function,
+                                                      $params);
+            @ini_set('track_errors', $ini);
+        }
+
+        if (!$this->connection) {
+            if (($err = @msql_error()) != '') {
+                return $this->raiseError(DB_ERROR_CONNECT_FAILED,
+                                         null, null, null,
+                                         $err);
+            } else {
+                return $this->raiseError(DB_ERROR_CONNECT_FAILED,
+                                         null, null, null,
+                                         $php_errormsg);
+            }
+        }
+
+        if (!@msql_select_db($dsn['database'], $this->connection)) {
+            return $this->msqlRaiseError();
+        }
+        return DB_OK;
+    }
+
+    // }}}
+    // {{{ disconnect()
+
+    /**
+     * Disconnects from the database server
+     *
+     * @return bool  TRUE on success, FALSE on failure
+     */
+    function disconnect()
+    {
+        $ret = @msql_close($this->connection);
+        $this->connection = null;
+        return $ret;
+    }
+
+    // }}}
+    // {{{ simpleQuery()
+
+    /**
+     * Sends a query to the database server
+     *
+     * @param string  the SQL query string
+     *
+     * @return mixed  + a PHP result resrouce for successful SELECT queries
+     *                + the DB_OK constant for other successful queries
+     *                + a DB_Error object on failure
+     */
+    function simpleQuery($query)
+    {
+        $this->last_query = $query;
+        $query = $this->modifyQuery($query);
+        $result = @msql_query($query, $this->connection);
+        if (!$result) {
+            return $this->msqlRaiseError();
+        }
+        // Determine which queries that should return data, and which
+        // should return an error code only.
+        if ($this->_checkManip($query)) {
+            $this->_result = $result;
+            return DB_OK;
+        } else {
+            $this->_result = false;
+            return $result;
+        }
+    }
+
+
+    // }}}
+    // {{{ nextResult()
+
+    /**
+     * Move the internal msql result pointer to the next available result
+     *
+     * @param a valid fbsql result resource
+     *
+     * @access public
+     *
+     * @return true if a result is available otherwise return false
+     */
+    function nextResult($result)
+    {
+        return false;
+    }
+
+    // }}}
+    // {{{ fetchInto()
+
+    /**
+     * Places a row from the result set into the given array
+     *
+     * Formating of the array and the data therein are configurable.
+     * See DB_result::fetchInto() for more information.
+     *
+     * This method is not meant to be called directly.  Use
+     * DB_result::fetchInto() instead.  It can't be declared "protected"
+     * because DB_result is a separate object.
+     *
+     * PHP's mSQL extension did weird things with NULL values prior to PHP
+     * 4.3.11 and 5.0.4.  Make sure your version of PHP meets or exceeds
+     * those versions.
+     *
+     * @param resource $result    the query result resource
+     * @param array    $arr       the referenced array to put the data in
+     * @param int      $fetchmode how the resulting array should be indexed
+     * @param int      $rownum    the row number to fetch (0 = first row)
+     *
+     * @return mixed  DB_OK on success, NULL when the end of a result set is
+     *                 reached or on failure
+     *
+     * @see DB_result::fetchInto()
+     */
+    function fetchInto($result, &$arr, $fetchmode, $rownum = null)
+    {
+        if ($rownum !== null) {
+            if (!@msql_data_seek($result, $rownum)) {
+                return null;
+            }
+        }
+        if ($fetchmode & DB_FETCHMODE_ASSOC) {
+            $arr = @msql_fetch_array($result, MSQL_ASSOC);
+            if ($this->options['portability'] & DB_PORTABILITY_LOWERCASE && $arr) {
+                $arr = array_change_key_case($arr, CASE_LOWER);
+            }
+        } else {
+            $arr = @msql_fetch_row($result);
+        }
+        if (!$arr) {
+            return null;
+        }
+        if ($this->options['portability'] & DB_PORTABILITY_RTRIM) {
+            $this->_rtrimArrayValues($arr);
+        }
+        if ($this->options['portability'] & DB_PORTABILITY_NULL_TO_EMPTY) {
+            $this->_convertNullArrayValuesToEmpty($arr);
+        }
+        return DB_OK;
+    }
+
+    // }}}
+    // {{{ freeResult()
+
+    /**
+     * Deletes the result set and frees the memory occupied by the result set
+     *
+     * This method is not meant to be called directly.  Use
+     * DB_result::free() instead.  It can't be declared "protected"
+     * because DB_result is a separate object.
+     *
+     * @param resource $result  PHP's query result resource
+     *
+     * @return bool  TRUE on success, FALSE if $result is invalid
+     *
+     * @see DB_result::free()
+     */
+    function freeResult($result)
+    {
+        return is_resource($result) ? msql_free_result($result) : false;
+    }
+
+    // }}}
+    // {{{ numCols()
+
+    /**
+     * Gets the number of columns in a result set
+     *
+     * This method is not meant to be called directly.  Use
+     * DB_result::numCols() instead.  It can't be declared "protected"
+     * because DB_result is a separate object.
+     *
+     * @param resource $result  PHP's query result resource
+     *
+     * @return int  the number of columns.  A DB_Error object on failure.
+     *
+     * @see DB_result::numCols()
+     */
+    function numCols($result)
+    {
+        $cols = @msql_num_fields($result);
+        if (!$cols) {
+            return $this->msqlRaiseError();
+        }
+        return $cols;
+    }
+
+    // }}}
+    // {{{ numRows()
+
+    /**
+     * Gets the number of rows in a result set
+     *
+     * This method is not meant to be called directly.  Use
+     * DB_result::numRows() instead.  It can't be declared "protected"
+     * because DB_result is a separate object.
+     *
+     * @param resource $result  PHP's query result resource
+     *
+     * @return int  the number of rows.  A DB_Error object on failure.
+     *
+     * @see DB_result::numRows()
+     */
+    function numRows($result)
+    {
+        $rows = @msql_num_rows($result);
+        if ($rows === false) {
+            return $this->msqlRaiseError();
+        }
+        return $rows;
+    }
+
+    // }}}
+    // {{{ affected()
+
+    /**
+     * Determines the number of rows affected by a data maniuplation query
+     *
+     * 0 is returned for queries that don't manipulate data.
+     *
+     * @return int  the number of rows.  A DB_Error object on failure.
+     */
+    function affectedRows()
+    {
+        if (!$this->_result) {
+            return 0;
+        }
+        return msql_affected_rows($this->_result);
+    }
+
+    // }}}
+    // {{{ nextId()
+
+    /**
+     * Returns the next free id in a sequence
+     *
+     * @param string  $seq_name  name of the sequence
+     * @param boolean $ondemand  when true, the seqence is automatically
+     *                            created if it does not exist
+     *
+     * @return int  the next id number in the sequence.
+     *               A DB_Error object on failure.
+     *
+     * @see DB_common::nextID(), DB_common::getSequenceName(),
+     *      DB_msql::createSequence(), DB_msql::dropSequence()
+     */
+    function nextId($seq_name, $ondemand = true)
+    {
+        $seqname = $this->getSequenceName($seq_name);
+        $repeat = false;
+        do {
+            $this->pushErrorHandling(PEAR_ERROR_RETURN);
+            $result = $this->query("SELECT _seq FROM ${seqname}");
+            $this->popErrorHandling();
+            if ($ondemand && DB::isError($result) &&
+                $result->getCode() == DB_ERROR_NOSUCHTABLE) {
+                $repeat = true;
+                $this->pushErrorHandling(PEAR_ERROR_RETURN);
+                $result = $this->createSequence($seq_name);
+                $this->popErrorHandling();
+                if (DB::isError($result)) {
+                    return $this->raiseError($result);
+                }
+            } else {
+                $repeat = false;
+            }
+        } while ($repeat);
+        if (DB::isError($result)) {
+            return $this->raiseError($result);
+        }
+        $arr = $result->fetchRow(DB_FETCHMODE_ORDERED);
+        $result->free();
+        return $arr[0];
+    }
+
+    // }}}
+    // {{{ createSequence()
+
+    /**
+     * Creates a new sequence
+     *
+     * Also creates a new table to associate the sequence with.  Uses
+     * a separate table to ensure portability with other drivers.
+     *
+     * @param string $seq_name  name of the new sequence
+     *
+     * @return int  DB_OK on success.  A DB_Error object on failure.
+     *
+     * @see DB_common::createSequence(), DB_common::getSequenceName(),
+     *      DB_msql::nextID(), DB_msql::dropSequence()
+     */
+    function createSequence($seq_name)
+    {
+        $seqname = $this->getSequenceName($seq_name);
+        $res = $this->query('CREATE TABLE ' . $seqname
+                            . ' (id INTEGER NOT NULL)');
+        if (DB::isError($res)) {
+            return $res;
+        }
+        $res = $this->query("CREATE SEQUENCE ON ${seqname}");
+        return $res;
+    }
+
+    // }}}
+    // {{{ dropSequence()
+
+    /**
+     * Deletes a sequence
+     *
+     * @param string $seq_name  name of the sequence to be deleted
+     *
+     * @return int  DB_OK on success.  A DB_Error object on failure.
+     *
+     * @see DB_common::dropSequence(), DB_common::getSequenceName(),
+     *      DB_msql::nextID(), DB_msql::createSequence()
+     */
+    function dropSequence($seq_name)
+    {
+        return $this->query('DROP TABLE ' . $this->getSequenceName($seq_name));
+    }
+
+    // }}}
+    // {{{ quoteIdentifier()
+
+    /**
+     * mSQL does not support delimited identifiers
+     *
+     * @param string $str  the identifier name to be quoted
+     *
+     * @return object  a DB_Error object
+     *
+     * @see DB_common::quoteIdentifier()
+     * @since Method available since Release 1.7.0
+     */
+    function quoteIdentifier($str)
+    {
+        return $this->raiseError(DB_ERROR_UNSUPPORTED);
+    }
+
+    // }}}
+    // {{{ quoteFloat()
+
+    /**
+     * Formats a float value for use within a query in a locale-independent
+     * manner.
+     *
+     * @param float the float value to be quoted.
+     * @return string the quoted string.
+     * @see DB_common::quoteSmart()
+     * @since Method available since release 1.7.8.
+     */
+    function quoteFloat($float) {
+        return $this->escapeSimple(str_replace(',', '.', strval(floatval($float))));
+    }
+     
+    // }}}
+    // {{{ escapeSimple()
+
+    /**
+     * Escapes a string according to the current DBMS's standards
+     *
+     * @param string $str  the string to be escaped
+     *
+     * @return string  the escaped string
+     *
+     * @see DB_common::quoteSmart()
+     * @since Method available since Release 1.7.0
+     */
+    function escapeSimple($str)
+    {
+        return addslashes($str);
+    }
+
+    // }}}
+    // {{{ msqlRaiseError()
+
+    /**
+     * Produces a DB_Error object regarding the current problem
+     *
+     * @param int $errno  if the error is being manually raised pass a
+     *                     DB_ERROR* constant here.  If this isn't passed
+     *                     the error information gathered from the DBMS.
+     *
+     * @return object  the DB_Error object
+     *
+     * @see DB_common::raiseError(),
+     *      DB_msql::errorNative(), DB_msql::errorCode()
+     */
+    function msqlRaiseError($errno = null)
+    {
+        $native = $this->errorNative();
+        if ($errno === null) {
+            $errno = $this->errorCode($native);
+        }
+        return $this->raiseError($errno, null, null, null, $native);
+    }
+
+    // }}}
+    // {{{ errorNative()
+
+    /**
+     * Gets the DBMS' native error message produced by the last query
+     *
+     * @return string  the DBMS' error message
+     */
+    function errorNative()
+    {
+        return @msql_error();
+    }
+
+    // }}}
+    // {{{ errorCode()
+
+    /**
+     * Determines PEAR::DB error code from the database's text error message
+     *
+     * @param string $errormsg  the error message returned from the database
+     *
+     * @return integer  the error number from a DB_ERROR* constant
+     */
+    function errorCode($errormsg)
+    {
+        static $error_regexps;
+        
+        // PHP 5.2+ prepends the function name to $php_errormsg, so we need
+        // this hack to work around it, per bug #9599.
+        $errormsg = preg_replace('/^msql[a-z_]+\(\): /', '', $errormsg);
+
+        if (!isset($error_regexps)) {
+            $error_regexps = array(
+                '/^Access to database denied/i'
+                    => DB_ERROR_ACCESS_VIOLATION,
+                '/^Bad index name/i'
+                    => DB_ERROR_ALREADY_EXISTS,
+                '/^Bad order field/i'
+                    => DB_ERROR_SYNTAX,
+                '/^Bad type for comparison/i'
+                    => DB_ERROR_SYNTAX,
+                '/^Can\'t perform LIKE on/i'
+                    => DB_ERROR_SYNTAX,
+                '/^Can\'t use TEXT fields in LIKE comparison/i'
+                    => DB_ERROR_SYNTAX,
+                '/^Couldn\'t create temporary table/i'
+                    => DB_ERROR_CANNOT_CREATE,
+                '/^Error creating table file/i'
+                    => DB_ERROR_CANNOT_CREATE,
+                '/^Field .* cannot be null$/i'
+                    => DB_ERROR_CONSTRAINT_NOT_NULL,
+                '/^Index (field|condition) .* cannot be null$/i'
+                    => DB_ERROR_SYNTAX,
+                '/^Invalid date format/i'
+                    => DB_ERROR_INVALID_DATE,
+                '/^Invalid time format/i'
+                    => DB_ERROR_INVALID,
+                '/^Literal value for .* is wrong type$/i'
+                    => DB_ERROR_INVALID_NUMBER,
+                '/^No Database Selected/i'
+                    => DB_ERROR_NODBSELECTED,
+                '/^No value specified for field/i'
+                    => DB_ERROR_VALUE_COUNT_ON_ROW,
+                '/^Non unique value for unique index/i'
+                    => DB_ERROR_CONSTRAINT,
+                '/^Out of memory for temporary table/i'
+                    => DB_ERROR_CANNOT_CREATE,
+                '/^Permission denied/i'
+                    => DB_ERROR_ACCESS_VIOLATION,
+                '/^Reference to un-selected table/i'
+                    => DB_ERROR_SYNTAX,
+                '/^syntax error/i'
+                    => DB_ERROR_SYNTAX,
+                '/^Table .* exists$/i'
+                    => DB_ERROR_ALREADY_EXISTS,
+                '/^Unknown database/i'
+                    => DB_ERROR_NOSUCHDB,
+                '/^Unknown field/i'
+                    => DB_ERROR_NOSUCHFIELD,
+                '/^Unknown (index|system variable)/i'
+                    => DB_ERROR_NOT_FOUND,
+                '/^Unknown table/i'
+                    => DB_ERROR_NOSUCHTABLE,
+                '/^Unqualified field/i'
+                    => DB_ERROR_SYNTAX,
+            );
+        }
+
+        foreach ($error_regexps as $regexp => $code) {
+            if (preg_match($regexp, $errormsg)) {
+                return $code;
+            }
+        }
+        return DB_ERROR;
+    }
+
+    // }}}
+    // {{{ tableInfo()
+
+    /**
+     * Returns information about a table or a result set
+     *
+     * @param object|string  $result  DB_result object from a query or a
+     *                                 string containing the name of a table.
+     *                                 While this also accepts a query result
+     *                                 resource identifier, this behavior is
+     *                                 deprecated.
+     * @param int            $mode    a valid tableInfo mode
+     *
+     * @return array  an associative array with the information requested.
+     *                 A DB_Error object on failure.
+     *
+     * @see DB_common::setOption()
+     */
+    function tableInfo($result, $mode = null)
+    {
+        if (is_string($result)) {
+            /*
+             * Probably received a table name.
+             * Create a result resource identifier.
+             */
+            $id = @msql_query("SELECT * FROM $result",
+                              $this->connection);
+            $got_string = true;
+        } elseif (isset($result->result)) {
+            /*
+             * Probably received a result object.
+             * Extract the result resource identifier.
+             */
+            $id = $result->result;
+            $got_string = false;
+        } else {
+            /*
+             * Probably received a result resource identifier.
+             * Copy it.
+             * Deprecated.  Here for compatibility only.
+             */
+            $id = $result;
+            $got_string = false;
+        }
+
+        if (!is_resource($id)) {
+            return $this->raiseError(DB_ERROR_NEED_MORE_DATA);
+        }
+
+        if ($this->options['portability'] & DB_PORTABILITY_LOWERCASE) {
+            $case_func = 'strtolower';
+        } else {
+            $case_func = 'strval';
+        }
+
+        $count = @msql_num_fields($id);
+        $res   = array();
+
+        if ($mode) {
+            $res['num_fields'] = $count;
+        }
+
+        for ($i = 0; $i < $count; $i++) {
+            $tmp = @msql_fetch_field($id);
+
+            $flags = '';
+            if ($tmp->not_null) {
+                $flags .= 'not_null ';
+            }
+            if ($tmp->unique) {
+                $flags .= 'unique_key ';
+            }
+            $flags = trim($flags);
+
+            $res[$i] = array(
+                'table' => $case_func($tmp->table),
+                'name'  => $case_func($tmp->name),
+                'type'  => $tmp->type,
+                'len'   => msql_field_len($id, $i),
+                'flags' => $flags,
+            );
+
+            if ($mode & DB_TABLEINFO_ORDER) {
+                $res['order'][$res[$i]['name']] = $i;
+            }
+            if ($mode & DB_TABLEINFO_ORDERTABLE) {
+                $res['ordertable'][$res[$i]['table']][$res[$i]['name']] = $i;
+            }
+        }
+
+        // free the result only if we were called on a table
+        if ($got_string) {
+            @msql_free_result($id);
+        }
+        return $res;
+    }
+
+    // }}}
+    // {{{ getSpecialQuery()
+
+    /**
+     * Obtain a list of a given type of objects
+     *
+     * @param string $type  the kind of objects you want to retrieve
+     *
+     * @return array  the array containing the list of objects requested
+     *
+     * @access protected
+     * @see DB_common::getListOf()
+     */
+    function getSpecialQuery($type)
+    {
+        switch ($type) {
+            case 'databases':
+                $id = @msql_list_dbs($this->connection);
+                break;
+            case 'tables':
+                $id = @msql_list_tables($this->dsn['database'],
+                                        $this->connection);
+                break;
+            default:
+                return null;
+        }
+        if (!$id) {
+            return $this->msqlRaiseError();
+        }
+        $out = array();
+        while ($row = @msql_fetch_row($id)) {
+            $out[] = $row[0];
+        }
+        return $out;
+    }
+
+    // }}}
+
+}
+
+/*
+ * Local variables:
+ * tab-width: 4
+ * c-basic-offset: 4
+ * End:
+ */
+
+?>