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read_dump.php3
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read_dump.php3
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<?php
/* $Id$ */
/**
* Removes comment lines and splits up large sql files into individual queries
*
* Last revision: September 23, 2001 - gandon
*
* @param array the splitted sql commands
* @param string the sql commands
* @param integer the MySQL release number (because certains php3 versions
* can't get the value of a constant from within a function)
*
* @return boolean always true
*
* @access public
*/
function PMA_splitSqlFile(&$ret, $sql, $release)
{
$sql = trim($sql);
$sql_len = strlen($sql);
$char = '';
$string_start = '';
$in_string = FALSE;
$time0 = time();
for ($i = 0; $i < $sql_len; ++$i) {
$char = $sql[$i];
// We are in a string, check for not escaped end of strings except for
// backquotes that can't be escaped
if ($in_string) {
for (;;) {
$i = strpos($sql, $string_start, $i);
// No end of string found -> add the current substring to the
// returned array
if (!$i) {
$ret[] = $sql;
return TRUE;
}
// Backquotes or no backslashes before quotes: it's indeed the
// end of the string -> exit the loop
else if ($string_start == '`' || $sql[$i-1] != '\\') {
$string_start = '';
$in_string = FALSE;
break;
}
// one or more Backslashes before the presumed end of string...
else {
// ... first checks for escaped backslashes
$j = 2;
$escaped_backslash = FALSE;
while ($i-$j > 0 && $sql[$i-$j] == '\\') {
$escaped_backslash = !$escaped_backslash;
$j++;
}
// ... if escaped backslashes: it's really the end of the
// string -> exit the loop
if ($escaped_backslash) {
$string_start = '';
$in_string = FALSE;
break;
}
// ... else loop
else {
$i++;
}
} // end if...elseif...else
} // end for
} // end if (in string)
// We are not in a string, first check for delimiter...
else if ($char == ';') {
// if delimiter found, add the parsed part to the returned array
$ret[] = substr($sql, 0, $i);
$sql = ltrim(substr($sql, min($i + 1, $sql_len)));
$sql_len = strlen($sql);
if ($sql_len) {
$i = -1;
} else {
// The submited statement(s) end(s) here
return TRUE;
}
} // end else if (is delimiter)
// ... then check for start of a string,...
else if (($char == '"') || ($char == '\'') || ($char == '`')) {
$in_string = TRUE;
$string_start = $char;
} // end else if (is start of string)
// ... for start of a comment (and remove this comment if found)...
else if ($char == '#'
|| ($char == ' ' && $i > 1 && $sql[$i-2] . $sql[$i-1] == '--')) {
// starting position of the comment depends on the comment type
$start_of_comment = (($sql[$i] == '#') ? $i : $i-2);
// if no "\n" exits in the remaining string, checks for "\r"
// (Mac eol style)
$end_of_comment = (strpos(' ' . $sql, "\012", $i+2))
? strpos(' ' . $sql, "\012", $i+2)
: strpos(' ' . $sql, "\015", $i+2);
if (!$end_of_comment) {
// no eol found after '#', add the parsed part to the returned
// array if required and exit
if ($start_of_comment > 0) {
$ret[] = trim(substr($sql, 0, $start_of_comment));
}
return TRUE;
} else {
$sql = substr($sql, 0, $start_of_comment)
. ltrim(substr($sql, $end_of_comment));
$sql_len = strlen($sql);
$i--;
} // end if...else
} // end else if (is comment)
// ... and finally disactivate the "/*!...*/" syntax if MySQL < 3.22.07
else if ($release < 32270
&& ($char == '!' && $i > 1 && $sql[$i-2] . $sql[$i-1] == '/*')) {
$sql[$i] = ' ';
} // end else if
// loic1: send a fake header each 30 sec. to bypass browser timeout
$time1 = time();
if ($time1 >= $time0 + 30) {
$time0 = $time1;
header('X-pmaPing: Pong');
} // end if
} // end for
// add any rest to the returned array
if (!empty($sql) && ereg('[^[:space:]]+', $sql)) {
$ret[] = $sql;
}
return TRUE;
} // end of the 'PMA_splitSqlFile()' function
if (!function_exists('is_uploaded_file')) {
/**
* Emulates the 'is_uploaded_file()' function for old php versions.
* Grabbed at the php manual:
* http://www.php.net/manual/en/features.file-upload.php
*
* @param string the name of the file to check
*
* @return boolean wether the file has been uploaded or not
*
* @access public
*/
function is_uploaded_file($filename) {
if (!$tmp_file = @get_cfg_var('upload_tmp_dir')) {
$tmp_file = tempnam('','');
$deleted = @unlink($tmp_file);
$tmp_file = dirname($tmp_file);
}
$tmp_file .= '/' . basename($filename);
// User might have trailing slash in php.ini...
return (ereg_replace('/+', '/', $tmp_file) == $filename);
} // end of the 'is_uploaded_file()' emulated function
} // end if
/**
* Gets some core libraries
*/
require('./libraries/grab_globals.lib.php3');
require('./libraries/common.lib.php3');
/**
* Increases the max. allowed time to run a script
*/
@set_time_limit($cfg['ExecTimeLimit']);
/**
* Defines the url to return to in case of error in a sql statement
*/
if (!isset($goto)
|| ($goto != 'db_details.php3' && $goto != 'tbl_properties.php3')) {
$goto = 'db_details.php3';
}
$err_url = $goto
. '?lang=' . $lang
. '&convcharset=' . $convcharset
. '&server=' . $server
. '&db=' . urlencode($db)
. (($goto == 'tbl_properties.php3') ? '&table=' . urlencode($table) : '');
/**
* Set up default values for some variables
*/
$view_bookmark = 0;
$sql_bookmark = isset($sql_bookmark) ? $sql_bookmark : '';
$sql_query = isset($sql_query) ? $sql_query : '';
$sql_file = !empty($sql_file) ? $sql_file : 'none';
/**
* Bookmark Support: get a query back from bookmark if required
*/
if (!empty($id_bookmark)) {
include('./libraries/bookmark.lib.php3');
switch($action_bookmark) {
case 0: // bookmarked query that have to be run
$sql_query = PMA_queryBookmarks($db, $cfg['Bookmark'], $id_bookmark);
break;
case 1: // bookmarked query that have to be displayed
$sql_query = PMA_queryBookmarks($db, $cfg['Bookmark'], $id_bookmark);
$view_bookmark = 1;
break;
case 2: // bookmarked query that have to be deleted
$sql_query = PMA_deleteBookmarks($db, $cfg['Bookmark'], $id_bookmark);
break;
}
} // end if
/**
* Prepares the sql query
*/
// Gets the query from a file if required
if ($sql_file != 'none') {
if (file_exists($sql_file) && is_uploaded_file($sql_file)) {
$open_basedir = '';
if (PMA_PHP_INT_VERSION >= 40000) {
$open_basedir = @ini_get('open_basedir');
}
if (empty($open_basedir)) {
$open_basedir = @get_cfg_var('open_basedir');
}
// If we are on a server with open_basedir, we must move the file
// before opening it. The doc explains how to create the "./tmp"
// directory
if (!empty($open_basedir)) {
// check if '.' is in open_basedir
$split_char = (PMA_IS_WINDOWS ? ';' : ':');
$pos = ereg('(^|' . $split_char . ')\\.(' . $split_char . '|$)', $open_basedir);
// from the PHP annotated manual
if (!$pos) {
// if no '.' in openbasedir, do not move the file (open_basedir
// may only be a prefix), force the error and let PHP reports
// it
error_reporting(E_ALL);
$sql_query = fread(fopen($sql_file, 'r'), filesize($sql_file));
}
else {
$sql_file_new = (PMA_IS_WINDOWS ? '.\\tmp\\' : './tmp/')
. basename($sql_file);
if (PMA_PHP_INT_VERSION < 40003) {
copy($sql_file, $sql_file_new);
} else {
move_uploaded_file($sql_file, $sql_file_new);
}
$sql_query = fread(fopen($sql_file_new, 'r'), filesize($sql_file_new));
unlink($sql_file_new);
}
}
else {
// read from the normal upload dir
$sql_query = fread(fopen($sql_file, 'r'), filesize($sql_file));
}
if (get_magic_quotes_runtime() == 1) {
$sql_query = stripslashes($sql_query);
}
// Convert the file's charset if necessary
if ($cfg['AllowAnywhereRecoding'] && $allow_recoding
&& isset($charset_of_file) && $charset_of_file != $charset) {
$sql_query = iconv($charset_of_file, $charset, $sql_query);
}
} // end uploaded file stuff
}
else if (empty($id_bookmark) && get_magic_quotes_gpc() == 1) {
$sql_query = stripslashes($sql_query);
}
// Kanji convert SQL textfile 2002/1/4 by Y.Kawada
if (@function_exists('PMA_kanji_str_conv')) {
$sql_tmp = trim($sql_query);
PMA_change_enc_order();
$sql_query = PMA_kanji_str_conv($sql_tmp, $knjenc, isset($xkana) ? $xkana : '');
PMA_change_enc_order();
} else {
$sql_query = trim($sql_query);
}
// $sql_query come from the query textarea, if it's a reposted query gets its
// 'true' value
if (!empty($prev_sql_query)) {
$prev_sql_query = urldecode($prev_sql_query);
if ($sql_query == trim(htmlspecialchars($prev_sql_query))) {
$sql_query = $prev_sql_query;
}
}
// Drop database is not allowed -> ensure the query can be run
if (!$cfg['AllowUserDropDatabase']
&& eregi('DROP[[:space:]]+(IF EXISTS[[:space:]]+)?DATABASE ', $sql_query)) {
// Checks if the user is a Superuser
// TODO: set a global variable with this information
// loic1: optimized query
$result = @PMA_mysql_query('USE mysql');
if (PMA_mysql_error()) {
include('./header.inc.php3');
PMA_mysqlDie($strNoDropDatabases, '', '', $err_url);
}
}
define('PMA_CHK_DROP', 1);
/**
* Executes the query
*/
if ($sql_query != '') {
$pieces = array();
PMA_splitSqlFile($pieces, $sql_query, PMA_MYSQL_INT_VERSION);
$pieces_count = count($pieces);
if ($pieces_count > 1) {
$is_multiple = TRUE;
}
// Copy of the cleaned sql statement for display purpose only (see near the
// beginning of "db_details.php3" & "tbl_properties.php3")
if ($sql_file != 'none' && $pieces_count > 10) {
// Be nice with bandwidth...
$sql_query_cpy = $sql_query = '';
} else {
$sql_query_cpy = implode(";\n", $pieces) . ';';
}
// really run the query?
if ($view_bookmark == 0) {
// Only one query to run
if ($pieces_count == 1 && !empty($pieces[0])) {
// sql.php3 will stripslash the query if get_magic_quotes_gpc
if (get_magic_quotes_gpc() == 1) {
$sql_query = addslashes($pieces[0]);
} else {
$sql_query = $pieces[0];
}
if (eregi('^(DROP|CREATE)[[:space:]]+(IF EXISTS[[:space:]]+)?(TABLE|DATABASE)[[:space:]]+(.+)', $sql_query)) {
$reload = 1;
}
include('./sql.php3');
exit();
}
// Runs multiple queries
else if (PMA_mysql_select_db($db)) {
$mult = TRUE;
for ($i = 0; $i < $pieces_count; $i++) {
$a_sql_query = $pieces[$i];
$result = PMA_mysql_query($a_sql_query);
if ($result == FALSE) { // readdump failed
$my_die = $a_sql_query;
break;
}
if (!isset($reload) && eregi('^(DROP|CREATE)[[:space:]]+(IF EXISTS[[:space:]]+)?(TABLE|DATABASE)[[:space:]]+(.+)', $a_sql_query)) {
$reload = 1;
}
} // end for
} // end else if
} // end if (really run the query)
unset($pieces);
} // end if
/**
* MySQL error
*/
if (isset($my_die)) {
$js_to_run = 'functions.js';
include('./header.inc.php3');
PMA_mysqlDie('', $my_die, '', $err_url);
}
/**
* Go back to the calling script
*/
// Checks for a valid target script
if (isset($table) && $table == '') {
unset($table);
}
if (isset($db) && $db == '') {
unset($db);
}
$is_db = $is_table = FALSE;
if ($goto == 'tbl_properties.php3') {
if (!isset($table)) {
$goto = 'db_details.php3';
} else {
$is_table = @PMA_mysql_query('SHOW TABLES LIKE \'' . PMA_sqlAddslashes($table, TRUE) . '\'');
if (!($is_table && @mysql_numrows($is_table))) {
$goto = 'db_details.php3';
unset($table);
}
} // end if... else...
}
if ($goto == 'db_details.php3') {
if (isset($table)) {
unset($table);
}
if (!isset($db)) {
$goto = 'main.php3';
} else {
$is_db = @PMA_mysql_select_db($db);
if (!$is_db) {
$goto = 'main.php3';
unset($db);
}
} // end if... else...
}
// Defines the message to be displayed
if (!empty($id_bookmark) && $action_bookmark == 2) {
$message = $strBookmarkDeleted;
} else if (!isset($sql_query_cpy)) {
$message = $strNoQuery;
} else if ($sql_query_cpy == '') {
$message = "$strSuccess :<br />$strTheContent ($pieces_count $strInstructions) ";
} else {
$message = $strSuccess;
}
// Loads to target script
if ($goto == 'db_details.php3' || $goto == 'tbl_properties.php3') {
$js_to_run = 'functions.js';
}
if ($goto != 'main.php3') {
include('./header.inc.php3');
}
require('./' . $goto);
?>