mirror of
https://github.com/atlanticbiomedical/portal-legacy.git
synced 2025-07-02 01:47:28 -04:00
initial commit
This commit is contained in:
Chris Sewell
321
html/phpmyad/libraries/import/sql.php
Normal file
321
html/phpmyad/libraries/import/sql.php
Normal file
@ -0,0 +1,321 @@
|
||||
<?php
|
||||
/* vim: set expandtab sw=4 ts=4 sts=4: */
|
||||
/**
|
||||
* SQL import plugin for phpMyAdmin
|
||||
*
|
||||
* @package PhpMyAdmin-Import
|
||||
* @subpackage SQL
|
||||
*/
|
||||
if (! defined('PHPMYADMIN')) {
|
||||
exit;
|
||||
}
|
||||
|
||||
/**
|
||||
*
|
||||
*/
|
||||
if (isset($plugin_list)) {
|
||||
$plugin_list['sql'] = array(
|
||||
'text' => __('SQL'),
|
||||
'extension' => 'sql',
|
||||
'options_text' => __('Options'),
|
||||
);
|
||||
$compats = PMA_DBI_getCompatibilities();
|
||||
if (count($compats) > 0) {
|
||||
$values = array();
|
||||
foreach ($compats as $val) {
|
||||
$values[$val] = $val;
|
||||
}
|
||||
$plugin_list['sql']['options'] = array(
|
||||
array('type' => 'begin_group', 'name' => 'general_opts'),
|
||||
array(
|
||||
'type' => 'select',
|
||||
'name' => 'compatibility',
|
||||
'text' => __('SQL compatibility mode:'),
|
||||
'values' => $values,
|
||||
'doc' => array(
|
||||
'manual_MySQL_Database_Administration',
|
||||
'Server_SQL_mode',
|
||||
),
|
||||
),
|
||||
array(
|
||||
'type' => 'bool',
|
||||
'name' => 'no_auto_value_on_zero',
|
||||
'text' => __('Do not use <code>AUTO_INCREMENT</code> for zero values'),
|
||||
'doc' => array(
|
||||
'manual_MySQL_Database_Administration',
|
||||
'Server_SQL_mode',
|
||||
'sqlmode_no_auto_value_on_zero'
|
||||
),
|
||||
|
||||
),
|
||||
array('type' => 'end_group'),
|
||||
);
|
||||
}
|
||||
|
||||
/* We do not define function when plugin is just queried for information above */
|
||||
return;
|
||||
}
|
||||
|
||||
$buffer = '';
|
||||
// Defaults for parser
|
||||
$sql = '';
|
||||
$start_pos = 0;
|
||||
$i = 0;
|
||||
$len= 0;
|
||||
$big_value = 2147483647;
|
||||
$delimiter_keyword = 'DELIMITER '; // include the space because it's mandatory
|
||||
$length_of_delimiter_keyword = strlen($delimiter_keyword);
|
||||
|
||||
if (isset($_POST['sql_delimiter'])) {
|
||||
$sql_delimiter = $_POST['sql_delimiter'];
|
||||
} else {
|
||||
$sql_delimiter = ';';
|
||||
}
|
||||
|
||||
// Handle compatibility options
|
||||
$sql_modes = array();
|
||||
if (isset($_REQUEST['sql_compatibility']) && 'NONE' != $_REQUEST['sql_compatibility']) {
|
||||
$sql_modes[] = $_REQUEST['sql_compatibility'];
|
||||
}
|
||||
if (isset($_REQUEST['sql_no_auto_value_on_zero'])) {
|
||||
$sql_modes[] = 'NO_AUTO_VALUE_ON_ZERO';
|
||||
}
|
||||
if (count($sql_modes) > 0) {
|
||||
PMA_DBI_try_query('SET SQL_MODE="' . implode(',', $sql_modes) . '"');
|
||||
}
|
||||
unset($sql_modes);
|
||||
|
||||
/**
|
||||
* will be set in PMA_importGetNextChunk()
|
||||
*
|
||||
* @global boolean $GLOBALS['finished']
|
||||
*/
|
||||
$GLOBALS['finished'] = false;
|
||||
|
||||
while (!($GLOBALS['finished'] && $i >= $len) && !$error && !$timeout_passed) {
|
||||
$data = PMA_importGetNextChunk();
|
||||
if ($data === false) {
|
||||
// subtract data we didn't handle yet and stop processing
|
||||
$offset -= strlen($buffer);
|
||||
break;
|
||||
} elseif ($data === true) {
|
||||
// Handle rest of buffer
|
||||
} else {
|
||||
// Append new data to buffer
|
||||
$buffer .= $data;
|
||||
// free memory
|
||||
unset($data);
|
||||
// Do not parse string when we're not at the end and don't have ; inside
|
||||
if ((strpos($buffer, $sql_delimiter, $i) === false) && !$GLOBALS['finished']) {
|
||||
continue;
|
||||
}
|
||||
}
|
||||
// Current length of our buffer
|
||||
$len = strlen($buffer);
|
||||
|
||||
// Grab some SQL queries out of it
|
||||
while ($i < $len) {
|
||||
$found_delimiter = false;
|
||||
// Find first interesting character
|
||||
$old_i = $i;
|
||||
// this is about 7 times faster that looking for each sequence i
|
||||
// one by one with strpos()
|
||||
if (preg_match('/(\'|"|#|-- |\/\*|`|(?i)(?<![A-Z0-9_])' . $delimiter_keyword . ')/', $buffer, $matches, PREG_OFFSET_CAPTURE, $i)) {
|
||||
// in $matches, index 0 contains the match for the complete
|
||||
// expression but we don't use it
|
||||
$first_position = $matches[1][1];
|
||||
} else {
|
||||
$first_position = $big_value;
|
||||
}
|
||||
/**
|
||||
* @todo we should not look for a delimiter that might be
|
||||
* inside quotes (or even double-quotes)
|
||||
*/
|
||||
// the cost of doing this one with preg_match() would be too high
|
||||
$first_sql_delimiter = strpos($buffer, $sql_delimiter, $i);
|
||||
if ($first_sql_delimiter === false) {
|
||||
$first_sql_delimiter = $big_value;
|
||||
} else {
|
||||
$found_delimiter = true;
|
||||
}
|
||||
|
||||
// set $i to the position of the first quote, comment.start or delimiter found
|
||||
$i = min($first_position, $first_sql_delimiter);
|
||||
|
||||
if ($i == $big_value) {
|
||||
// none of the above was found in the string
|
||||
|
||||
$i = $old_i;
|
||||
if (!$GLOBALS['finished']) {
|
||||
break;
|
||||
}
|
||||
// at the end there might be some whitespace...
|
||||
if (trim($buffer) == '') {
|
||||
$buffer = '';
|
||||
$len = 0;
|
||||
break;
|
||||
}
|
||||
// We hit end of query, go there!
|
||||
$i = strlen($buffer) - 1;
|
||||
}
|
||||
|
||||
// Grab current character
|
||||
$ch = $buffer[$i];
|
||||
|
||||
// Quotes
|
||||
if (strpos('\'"`', $ch) !== false) {
|
||||
$quote = $ch;
|
||||
$endq = false;
|
||||
while (!$endq) {
|
||||
// Find next quote
|
||||
$pos = strpos($buffer, $quote, $i + 1);
|
||||
/*
|
||||
* Behave same as MySQL and accept end of query as end of backtick.
|
||||
* I know this is sick, but MySQL behaves like this:
|
||||
*
|
||||
* SELECT * FROM `table
|
||||
*
|
||||
* is treated like
|
||||
*
|
||||
* SELECT * FROM `table`
|
||||
*/
|
||||
if ($pos === false && $quote == '`' && $found_delimiter) {
|
||||
$pos = $first_sql_delimiter - 1;
|
||||
// No quote? Too short string
|
||||
} elseif ($pos === false) {
|
||||
// We hit end of string => unclosed quote, but we handle it as end of query
|
||||
if ($GLOBALS['finished']) {
|
||||
$endq = true;
|
||||
$i = $len - 1;
|
||||
}
|
||||
$found_delimiter = false;
|
||||
break;
|
||||
}
|
||||
// Was not the quote escaped?
|
||||
$j = $pos - 1;
|
||||
while ($buffer[$j] == '\\') $j--;
|
||||
// Even count means it was not escaped
|
||||
$endq = (((($pos - 1) - $j) % 2) == 0);
|
||||
// Skip the string
|
||||
$i = $pos;
|
||||
|
||||
if ($first_sql_delimiter < $pos) {
|
||||
$found_delimiter = false;
|
||||
}
|
||||
}
|
||||
if (!$endq) {
|
||||
break;
|
||||
}
|
||||
$i++;
|
||||
// Aren't we at the end?
|
||||
if ($GLOBALS['finished'] && $i == $len) {
|
||||
$i--;
|
||||
} else {
|
||||
continue;
|
||||
}
|
||||
}
|
||||
|
||||
// Not enough data to decide
|
||||
if ((($i == ($len - 1) && ($ch == '-' || $ch == '/'))
|
||||
|| ($i == ($len - 2) && (($ch == '-' && $buffer[$i + 1] == '-')
|
||||
|| ($ch == '/' && $buffer[$i + 1] == '*')))) && !$GLOBALS['finished']) {
|
||||
break;
|
||||
}
|
||||
|
||||
// Comments
|
||||
if ($ch == '#'
|
||||
|| ($i < ($len - 1) && $ch == '-' && $buffer[$i + 1] == '-'
|
||||
&& (($i < ($len - 2) && $buffer[$i + 2] <= ' ')
|
||||
|| ($i == ($len - 1) && $GLOBALS['finished'])))
|
||||
|| ($i < ($len - 1) && $ch == '/' && $buffer[$i + 1] == '*')
|
||||
) {
|
||||
// Copy current string to SQL
|
||||
if ($start_pos != $i) {
|
||||
$sql .= substr($buffer, $start_pos, $i - $start_pos);
|
||||
}
|
||||
// Skip the rest
|
||||
$start_of_comment = $i;
|
||||
// do not use PHP_EOL here instead of "\n", because the export
|
||||
// file might have been produced on a different system
|
||||
$i = strpos($buffer, $ch == '/' ? '*/' : "\n", $i);
|
||||
// didn't we hit end of string?
|
||||
if ($i === false) {
|
||||
if ($GLOBALS['finished']) {
|
||||
$i = $len - 1;
|
||||
} else {
|
||||
break;
|
||||
}
|
||||
}
|
||||
// Skip *
|
||||
if ($ch == '/') {
|
||||
$i++;
|
||||
}
|
||||
// Skip last char
|
||||
$i++;
|
||||
// We need to send the comment part in case we are defining
|
||||
// a procedure or function and comments in it are valuable
|
||||
$sql .= substr($buffer, $start_of_comment, $i - $start_of_comment);
|
||||
// Next query part will start here
|
||||
$start_pos = $i;
|
||||
// Aren't we at the end?
|
||||
if ($i == $len) {
|
||||
$i--;
|
||||
} else {
|
||||
continue;
|
||||
}
|
||||
}
|
||||
// Change delimiter, if redefined, and skip it (don't send to server!)
|
||||
if (strtoupper(substr($buffer, $i, $length_of_delimiter_keyword)) == $delimiter_keyword
|
||||
&& ($i + $length_of_delimiter_keyword < $len)) {
|
||||
// look for EOL on the character immediately after 'DELIMITER '
|
||||
// (see previous comment about PHP_EOL)
|
||||
$new_line_pos = strpos($buffer, "\n", $i + $length_of_delimiter_keyword);
|
||||
// it might happen that there is no EOL
|
||||
if (false === $new_line_pos) {
|
||||
$new_line_pos = $len;
|
||||
}
|
||||
$sql_delimiter = substr($buffer, $i + $length_of_delimiter_keyword, $new_line_pos - $i - $length_of_delimiter_keyword);
|
||||
$i = $new_line_pos + 1;
|
||||
// Next query part will start here
|
||||
$start_pos = $i;
|
||||
continue;
|
||||
}
|
||||
|
||||
// End of SQL
|
||||
if ($found_delimiter || ($GLOBALS['finished'] && ($i == $len - 1))) {
|
||||
$tmp_sql = $sql;
|
||||
if ($start_pos < $len) {
|
||||
$length_to_grab = $i - $start_pos;
|
||||
|
||||
if (! $found_delimiter) {
|
||||
$length_to_grab++;
|
||||
}
|
||||
$tmp_sql .= substr($buffer, $start_pos, $length_to_grab);
|
||||
unset($length_to_grab);
|
||||
}
|
||||
// Do not try to execute empty SQL
|
||||
if (! preg_match('/^([\s]*;)*$/', trim($tmp_sql))) {
|
||||
$sql = $tmp_sql;
|
||||
PMA_importRunQuery($sql, substr($buffer, 0, $i + strlen($sql_delimiter)));
|
||||
$buffer = substr($buffer, $i + strlen($sql_delimiter));
|
||||
// Reset parser:
|
||||
$len = strlen($buffer);
|
||||
$sql = '';
|
||||
$i = 0;
|
||||
$start_pos = 0;
|
||||
// Any chance we will get a complete query?
|
||||
//if ((strpos($buffer, ';') === false) && !$GLOBALS['finished']) {
|
||||
if ((strpos($buffer, $sql_delimiter) === false) && !$GLOBALS['finished']) {
|
||||
break;
|
||||
}
|
||||
} else {
|
||||
$i++;
|
||||
$start_pos = $i;
|
||||
}
|
||||
}
|
||||
} // End of parser loop
|
||||
} // End of import loop
|
||||
// Commit any possible data in buffers
|
||||
PMA_importRunQuery('', substr($buffer, 0, $len));
|
||||
PMA_importRunQuery();
|
||||
?>
|
||||
Reference in New Issue
Block a user