e34a463b3c
* tried some fixes for bugs with comments characters in dump files (see bug #444279) and taked into account "-- " styled comments; * disactivated the "/*!...*/" syntax for MySQL < 3.22.07; * optimized the 'split_sql_file()' function.
284 lines
9.3 KiB
PHP
284 lines
9.3 KiB
PHP
<?php
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/* $Id$ */
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/**
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* Removes comment lines and splits up large sql files into individual queries
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*
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* Last revision: September 11, 2001 - loic1
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*
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* @param string the sql commands
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* @param string the end of command line delimiter
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* @param integer the MySQL release number (because certains php3 versions
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* can't get the value of a constant from within a function)
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*
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* @return array the splitted sql commands
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*
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* @access public
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*/
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function split_sql_file($sql, $delimiter, $release)
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{
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$sql = trim($sql);
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$sql_len = strlen($sql);
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$char = '';
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$ret = array();
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$string_start = '';
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$in_string = FALSE;
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$in_comment = FALSE;
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for ($i = 0; $i < $sql_len; ++$i) {
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$char = $sql[$i];
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// We are in a string, check for not escaped end of strings except for
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// backquotes than cannot be escaped
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if ($in_string) {
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while (1) {
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$i = strpos($sql, $string_start, $i);
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// No end of string found -> add the current substring to the
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// returned array
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if (!$i) {
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$ret[] = $sql;
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return $ret;
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}
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// It's trully the end of the string -> move to the next
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// character
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else if (($string_start == '`')
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|| (($i > 1 && $sql[$i-1] . $sql[$i-2] != '\\\\')
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|| ($sql[0] != '\\'))) {
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$string_start = '';
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$in_string = FALSE;
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break;
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} // end if... elseif
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} // end while
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} // end if ($in_string)
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// We are in a comment, add the parsed part to the returned array and
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// move to the next end of line
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else if ($in_comment) {
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// comment starting position in string depends on the comment type
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$ret_end = (($sql[$i-1] == '#') ? $i-1 : $i-3);
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if (ereg('[^[:space:]]+', substr($sql, 0, $ret_end))) {
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$ret[] = substr($sql, 0, $ret_end);
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}
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// if no "\n" exits in the remaining string, checks for "\r" (Mac
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// eol style)
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$eol_to_find = (strpos($sql, "\012", $i)) ? "\012" : "\015";
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$sql = strstr($sql, $eol_to_find);
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if ($sql == '' || empty($sql[1])) {
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// The submited statement(s) end(s) by a comment -> stop
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// parsing
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return $ret;
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} else {
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$sql = ltrim(substr($sql, 1));
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$sql_len = strlen($sql);
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if ($sql_len) {
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$i = -1;
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$in_comment = FALSE;
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} else {
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// The submited statement(s) end(s) here
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return $ret;
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} // end if...else
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} // end if...else
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} // end if ($in_comment)
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// If delimiter found, add the parsed part to the returned array
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else if ($char == $delimiter) {
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$ret[] = substr($sql, 0, $i);
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$sql = ltrim(substr($sql, min($i + 2, $sql_len)));
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$sql_len = strlen($sql);
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if ($sql_len) {
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$i = -1;
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} else {
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// The submited statement(s) end(s) here
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return $ret;
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}
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} // end if ($char == $delimiter)
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// We are neither in a string nor in a comment, and nor the current
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// character is a delimiter...
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else {
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// ... first check for start of strings...
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if (($char == '"') || ($char == '\'') || ($char == '`')) {
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$in_string = TRUE;
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$string_start = $char;
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}
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// ... then check for start of a comment...
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else if ($char == '#'
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|| ($char == ' ' && $i > 1 && $sql[$i-2] . $sql[$i-1] == '--')) {
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$in_comment = TRUE;
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}
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// ... and finally disactivate the "/*!...*/" syntax if
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// MySQL < 3.22.07
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else if ($release < 32270
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&& ($char == '!' && $i > 1 && $sql[$i-2] . $sql[$i-1] == '/*')) {
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$sql[$i] = ' ';
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}
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} // end else
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} // end for
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// add any rest to the returned array
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if (!empty($sql)) {
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$ret[] = $sql;
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}
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return $ret;
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} // end of the 'split_sql_file()' function
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/**
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* Increases the max. allowed time to run a script
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*/
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@set_time_limit(10000);
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/**
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* Gets some core libraries
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*/
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require('./libraries/grab_globals.lib.php3');
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require('./libraries/common.lib.php3');
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/**
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* Set up default values for some variables and
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*/
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$view_bookmark = 0;
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$sql_bookmark = isset($sql_bookmark) ? $sql_bookmark : '';
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$sql_query = isset($sql_query) ? $sql_query : '';
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$sql_file = !empty($sql_file) ? $sql_file : 'none';
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/**
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* Bookmark Support: get a query back from bookmark if required
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*/
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if (!empty($id_bookmark)) {
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include('./libraries/bookmark.lib.php3');
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switch($action_bookmark) {
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case 0: // bookmarked query that have to be run
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$sql_query = query_bookmarks($db, $cfgBookmark, $id_bookmark);
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break;
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case 1: // bookmarked query that have to be displayed
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$sql_query = query_bookmarks($db, $cfgBookmark, $id_bookmark);
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$view_bookmark = 1;
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break;
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case 2: // bookmarked query that have to be deleted
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$sql_query = delete_bookmarks($db, $cfgBookmark, $id_bookmark);
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break;
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}
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} // end if
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/**
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* Prepares the sql query
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*/
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// Gets the query from a file if required
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if ($sql_file != 'none') {
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// loic1: php < 4.05 for windows seems not to list the regexp test
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// if (ereg('^php[0-9A-Za-z_.-]+$', basename($sql_file))) {
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if (file_exists($sql_file)) {
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$sql_query = fread(fopen($sql_file, 'r'), filesize($sql_file));
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if (get_magic_quotes_runtime() == 1) {
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$sql_query = stripslashes($sql_query);
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}
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}
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}
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else if (empty($id_bookmark) && get_magic_quotes_gpc() == 1) {
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$sql_query = stripslashes($sql_query);
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}
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$sql_query = trim($sql_query);
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// $sql_query come from the query textarea, if it's a reposted query gets its
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// 'true' value
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if (!empty($prev_sql_query)) {
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$prev_sql_query = urldecode($prev_sql_query);
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if ($sql_query == trim(htmlspecialchars($prev_sql_query))) {
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$sql_query = $prev_sql_query;
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}
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}
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// Drop database is not allowed -> ensure the query can be run
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if (!$cfgAllowUserDropDatabase
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&& eregi('DROP[[:space:]]+(IF EXISTS[[:space:]]+)?DATABASE ', $sql_query)) {
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// Checks if the user is a Superuser
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// TODO: set a global variable with this information
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// loic1: optimized query
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$result = @mysql_query('USE mysql');
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if (mysql_error()) {
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include('./header.inc.php3');
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mysql_die($strNoDropDatabases);
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}
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}
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define('PMA_CHK_DROP', 1);
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/**
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* Executes the query
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*/
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if ($sql_query != '') {
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$pieces = split_sql_file($sql_query, ';', MYSQL_INT_VERSION);
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$pieces_count = count($pieces);
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// Copy of the cleaned sql statement for display purpose only (see near the
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// beginning of "db_details.php3" & "tbl_properties.php3")
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if ($sql_file != 'none' && $pieces_count > 10) {
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$sql_query_cpy = $sql_query = '';
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} else {
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$sql_query_cpy = implode(";\n", $pieces) . ';';
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}
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// Only one query to run
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if ($pieces_count == 1 && !empty($pieces[0]) && $view_bookmark == 0) {
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// loic1: remove non alphabetic characters from the beginning of the
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// query
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// $sql_query = trim($pieces[0]);
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$sql_query = eregi_replace('^[^a-aA-Z]', '', $pieces[0]);
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// sql.php3 will stripslash the query if get_magic_quotes_gpc
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if (get_magic_quotes_gpc() == 1) {
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$sql_query = addslashes($sql_query);
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}
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if (eregi('^(DROP|CREATE)[[:space:]]+(IF EXISTS[[:space:]]+)?(TABLE|DATABASE)[[:space:]]+(.+)', $sql_query)) {
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$reload = 1;
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}
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include('./sql.php3');
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exit();
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}
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// Runs multiple queries
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else if (mysql_select_db($db)) {
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for ($i = 0; $i < $pieces_count; $i++) {
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$a_sql_query = trim($pieces[$i]);
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if (!empty($a_sql_query) && $a_sql_query[0] != '#') {
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$result = mysql_query($a_sql_query);
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if ($result == FALSE) { // readdump failed
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$my_die = $a_sql_query;
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break;
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}
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}
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if (!isset($reload) && eregi('^(DROP|CREATE)[[:space:]]+(IF EXISTS[[:space:]]+)?(TABLE|DATABASE)[[:space:]]+(.+)', $a_sql_query)) {
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$reload = 1;
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}
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} // end for
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} // end else if
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unset($pieces);
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} // end if
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/**
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* Go back to the calling script
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*/
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$js_to_run = 'functions.js';
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require('./header.inc.php3');
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if (isset($my_die)) {
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mysql_die('', $my_die);
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}
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// Be nice with bandwidth...
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if ($sql_query_cpy == '') {
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$message = "$strSuccess :<br />$strTheContent ($pieces_count $strInstructions) ";
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} else {
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$message = $strSuccess;
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}
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if (!isset($goto)
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|| ($goto != 'db_details.php3' && $goto != 'tbl_properties.php3')) {
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$goto = 'db_details.php3';
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}
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require('./' . $goto);
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?>
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