";
for ($i = 0; $i < $n; $i++)
{
if ($i > 0)
$msg .= "\tarray ";
else
$msg .= "array ";
$msg .= "('name' => '" . $db_connections[$i]['name'] . "',\n";
$msg .= "\t\t'host' => '" . $db_connections[$i]['host'] . "',\n";
$msg .= "\t\t'dbuser' => '" . $db_connections[$i]['dbuser'] . "',\n";
$msg .= "\t\t'dbpassword' => '" . $db_connections[$i]['dbpassword'] . "',\n";
$msg .= "\t\t'dbname' => '" . $db_connections[$i]['dbname'] . "',\n";
$msg .= "\t\t'tbpref' => '" . $db_connections[$i]['tbpref'] . "')";
if ($i != $n - 1)
$msg .= ",";
$msg .= "\n\n";
}
$msg .= "\t);\n?>";
$filename = $path_to_root . "/config_db.php";
// Check if the file exists and is writable first.
if (file_exists($filename) && is_writable($filename))
{
if (!$zp = fopen($filename, 'w'))
{
return -1;
}
else
{
if (!fwrite($zp, $msg))
{
fclose($zp);
return -2;
}
// Close file
fclose($zp);
}
}
else
{
return -3;
}
return 0;
}
function db_create_db($connection)
{
$db = mysql_connect($connection["host"] ,
$connection["dbuser"], $connection["dbpassword"]);
if (!mysql_select_db($connection["dbname"], $db))
{
$sql = "CREATE DATABASE " . $connection["dbname"] . "";
if (!mysql_query($sql))
return 0;
mysql_select_db($connection["dbname"], $db);
}
return $db;
}
function db_drop_db($connection)
{
if ($connection["tbpref"] == "")
{
$sql = "DROP DATABASE " . $connection["dbname"] . "";
return mysql_query($sql);
}
else
{
$res = db_query("show table status");
$all_tables = array();
while($row = db_fetch($res))
$all_tables[] = $row;
// get table structures
foreach ($all_tables as $table)
{
if (strpos($table['Name'], $connection["tbpref"]) === 0)
db_query("DROP TABLE `".$table['Name'] . "`");
}
//deleting the tables, how??
return true;
}
}
function db_import($filename, $connection)
{
$data_queries = array();
$drop_queries = array();
$table_queries = array();
// uncrompress gziped backup files
if (strpos($filename, ".gzip") || strpos($filename, ".GZIP"))
$lines = db_ungzip("lines", $filename);
elseif (strpos($filename, ".zip") || strpos($filename, ".ZIP"))
$lines = db_unzip("lines", $filename);
else
$lines = file("". $filename);
// divide insert and create sql queries
// $table is set to TRUE if the next line belongs to a create sql query
$table = false;
foreach($lines as $line)
{
$line = trim($line);
$line = str_replace("0_", $connection["tbpref"], $line);
// $line = str_replace("Y_", "0_", $line);
// the last line did not belong to a 'create' sql query
if (!$table)
{
// this line does not, too
if (strtolower(substr($line,0,6)) == "insert")
{
$data_queries[] = substr($line, 0, strlen($line) - 1);
// this line does not, too
}
elseif (strtolower(substr($line,0,6)) == "update")
{
$data_queries[] = substr($line, 0, strlen($line) - 1);
// this line does not, too
}
elseif (strtolower(substr($line, 0, 20)) == "drop table if exists")
{
$drop_queries[] = substr($line, 0, strlen($line) - 1);
// this line does!
}
elseif (strtolower(substr($line, 0, 6)) == "create")
{
$table = true;
$table_queries[] = $line . "\n";
}
elseif (strtolower(substr($line, 0, 11)) == "alter table")
{
$data_queries[] = substr($line, 0, strlen($line) - 1);
}
// the current line belongs to a create sql query
}
else
{
// create sql query ending in this line
if (strtolower(substr($line, 0, 1)) == ")") {
$table = false;
$line = substr($line,0,strlen($line)-1);
}
$table_queries[count($table_queries) - 1] .= $line . "\n";
}
}
$sql_error = false;
// execute drop tables if exists queries
if (is_array($drop_queries))
{
foreach($drop_queries as $drop_query)
{
$sql_error = false;
if (!db_query($drop_query))
{
$sql_error = true;
//if ($CONF['import_error']) echo nl2br($drop_query)."\n
".mysql_error()."
\n";
}
}
}
// execute create tables queries
if (is_array($table_queries))
{
foreach($table_queries as $table_query)
{
$sql_error = false;
if (!db_query($table_query))
{
$sql_error = true;
//if ($CONF['import_error']) echo nl2br($table_query)."\n".mysql_error()."
\n";
}
}
}
// execute insert data queries
if (is_array($data_queries))
{
foreach($data_queries as $data_query)
{
$sql_error = false;
if (!db_query($data_query))
{
//if ($CONF['import_error']) echo $data_query."\n".mysql_error()."
\n";
$sql_error = true;
return false;
}
}
}
// show number successful executed querys or if an error did occur
if ($sql_error == 1)
return false;
//echo "".IM_ERROR.".
\n";
else
return true;
//echo "".IM_SUCCESS." ".count($table_queries)." ".IM_TABLES." ".count($data_queries)." ".IM_ROWS." (".$import_file.")
\n";
//$shell_command = C_MYSQL_PATH . " -h $host -u $user -p{$password} $dbname < $filename";
//shell_exec($shell_command);
}
// returns the content of the gziped $path backup file. use of $mode see below
function db_ungzip($mode, $path)
{
$file_data = gzfile($path);
// returns one string or an array of lines
if ($mode != "lines")
return implode("",$file_data);
else
return $file_data;
}
// returns the content of the ziped $path backup file. use of $mode see below
function db_unzip($mode, $path)
{
$all = false;
$all = implode("", file($path));
// convert path to name of ziped file
$filename = ereg_replace(".*/", "", $path);
$filename = substr($filename, 0, strlen($filename) - 4);
// compare filname in zip and filename from $_GET
if (substr($all, 30, strlen($filename)) != $filename)
{
return '';
// exit if names differ
//echo F_WRONG_FILE.".";
//exit;
}
else
{
// get the suffix of the filename in hex
$crc_bugfix = substr(substr($filename, 0, strlen($filename) - 4), strlen($filename) - 12 - 4);
$suffix = false;
// convert hex to ascii
for ($i=0; $i < 12; )
$suffix .= chr($crc_bugfix[$i++] . $crc_bugfix[$i++] . $crc_bugfix[$i++]);
// remove central directory information (we have always just one ziped file)
$comp = substr($all, -(strlen($all) - 30 - strlen($filename)));
$comp = substr($comp, 0, (strlen($comp) - 80 - strlen($filename)));
// fix the crc bugfix (see function save_to_file)
$comp = "xœ" . $comp . $suffix;
$file_data = gzuncompress($comp);
}
// returns one string or an array of lines
if ($mode != "lines")
return $file_data;
else
return explode("\n", $file_data);
}
// generates a dump of $db database
// $drop and $zip tell if to include the drop table statement or dry to pack
function db_export($conn, $filename, $zip='no', $comment='')
{
global $app_title, $version, $power_url, $path_to_root;
$error = false;
// set max string size before writing to file
$max_size = 1048576 * 2; // 2 MB
// changes max size if value can be retrieved
if (ini_get("memory_limit"))
$max_size = 900000 * ini_get("memory_limit");
// set backupfile name
if ($zip == "gzip")
$backupfile = $filename . ".gz";
elseif ($zip == "zip")
$backupfile = $filename . ".zip";
else
$backupfile = $filename;
$company = get_company_pref('coy_name');
//create comment
$out="# MySQL dump of database '".$conn["dbname"]."' on host '".$conn["host"]."'\n";
$out.="# Backup Date and Time: ".date("Y-m-d H:i")."\n";
$out.="# Built by " . $app_title . " " . $version ."\n";
$out.="# ".$power_url."\n";
$out.="# Company: ".$company."\n";
$out.="# User: ".$_SESSION["wa_current_user"]->name."\n\n";
// write users comment
if ($comment)
{
$out .= "# Comment:\n";
$comment=preg_replace("'\n'","\n# ","# ".$comment);
//$comment=str_replace("\n", "\n# ", $comment);
foreach(explode("\n",$comment) as $line)
$out .= $line."\n";
$out.="\n";
}
//$out.="use ".$db.";\n"; we don't use this option.
// get auto_increment values and names of all tables
$res = db_query("show table status");
$all_tables = array();
while($row = db_fetch($res))
{
//if ($conn["tbpref"] == "" || strpos($row['Name'], $conn["tbpref"]) !== false) replaced
if (($conn["tbpref"] == "" && !preg_match('/[0-9]+_/', $row['Name'])) ||
($conn["tbpref"] != "" && strpos($row['Name'], $conn["tbpref"]) !== false))
$all_tables[] = $row;
}
// get table structures
foreach ($all_tables as $table)
{
$res1 = db_query("SHOW CREATE TABLE `" . $table['Name'] . "`");
$tmp = db_fetch($res1);
$table_sql[$table['Name']] = $tmp["Create Table"];
}
// find foreign keys
$fks = array();
if (isset($table_sql))
{
foreach($table_sql as $tablenme=>$table)
{
$tmp_table=$table;
// save all tables, needed for creating this table in $fks
while (($ref_pos = strpos($tmp_table, " REFERENCES ")) > 0)
{
$tmp_table = substr($tmp_table, $ref_pos + 12);
$ref_pos = strpos($tmp_table, "(");
$fks[$tablenme][] = substr($tmp_table, 0, $ref_pos);
}
}
}
// order $all_tables
$all_tables = order_sql_tables($all_tables, $fks);
// as long as no error occurred
if (!$error)
{
//while($row=@mysql_fetch_array($res))
foreach ($all_tables as $row)
{
$tablename = $row['Name'];
$auto_incr[$tablename] = $row['Auto_increment'];
$out.="\n\n";
// export tables
$out.="### Structure of table `".$tablename."` ###\n\n";
$out.="DROP TABLE IF EXISTS `".$tablename."`;\n\n";
$out.=$table_sql[$tablename];
// add auto_increment value
if ($auto_incr[$tablename])
$out.=" AUTO_INCREMENT=".$auto_incr[$tablename];
$out.=" ;";
$out.="\n\n\n";
// export data
if (!$error)
{
$out.="### Data of table `".$tablename."` ###\n\n";
// check if field types are NULL or NOT NULL
$res3 = db_query("SHOW COLUMNS FROM `" . $tablename . "`");
$field_type = array();
for ($j = 0; $j < db_num_rows($res3); $j++)
{
$row3 = db_fetch($res3);
$field_type[] = $row3[2];
}
$res2 = db_query("SELECT * FROM `" . $tablename . "`");
for ($j = 0; $j < db_num_rows($res2); $j++)
{
$out .= "INSERT INTO `" . $tablename . "` VALUES (";
$row2 = db_fetch_row($res2);
// run through each field
for ($k = 0; $k < $nf = db_num_fields($res2); $k++)
{
$out .= db_escape($row2[$k]);
if ($k < ($nf - 1))
$out .= ", ";
}
$out .= ");\n";
// if saving is successful, then empty $out, else set error flag
if (strlen($out) > $max_size && $zip != "zip")
{
if (save_to_file($backupfile, $zip, $out))
$out = "";
else
$error = true;
}
}
// an error occurred! Try to delete file and return error status
}
elseif ($error)
{
@unlink(BACKUP_PATH . $backupfile);
return false;
}
// if saving is successful, then empty $out, else set error flag
if (strlen($out) > $max_size && $zip != "zip")
{
if (save_to_file($backupfile, $zip, $out))
$out= "";
else
$error = true;
}
}
// an error occurred! Try to delete file and return error status
}
else
{
@unlink(BACKUP_PATH . $backupfile);
return false;
}
// if (mysql_error()) return "DB_ERROR";
//@mysql_close($con);
//if ($zip == "zip")
// $zip = $time;
if (save_to_file($backupfile, $zip, $out))
{
$out = "";
}
else
{
@unlink(BACKUP_PATH . $backupfile);
return false;
}
return $backupfile;
}
// orders the tables in $tables according to the constraints in $fks
// $fks musst be filled like this: $fks[tablename][0]=needed_table1; $fks[tablename][1]=needed_table2; ...
function order_sql_tables($tables, $fks)
{
// do not order if no contraints exist
if (!count($fks))
return $tables;
// order
$new_tables = array();
$existing = array();
$modified = true;
while (count($tables) && $modified == true)
{
$modified = false;
foreach ($tables as $key=>$row)
{
// delete from $tables and add to $new_tables
if (isset($fks[$row['Name']]))
{
foreach($fks[$row['Name']] as $needed)
{
// go to next table if not all needed tables exist in $existing
if (!in_array($needed,$existing))
continue 2;
}
}
// delete from $tables and add to $new_tables
$existing[] = $row['Name'];
$new_tables[] = $row;
prev($tables);
unset($tables[$key]);
$modified = true;
}
}
if (count($tables))
{
// probably there are 'circles' in the constraints, bacause of that no proper backups can be created yet
// TODO: this will be fixed sometime later through using 'alter table' commands to add the constraints after generating the tables
// until now, just add the lasting tables to $new_tables, return them and print a warning
foreach($tables as $row)
$new_tables[] = $row;
echo "THIS DATABASE SEEMS TO CONTAIN 'RING CONSTRAINTS'. WA DOES NOT SUPPORT THEM. PROBABLY THE FOLOWING BACKUP IS DEFECT!
";
}
return $new_tables;
}
// saves the string in $fileData to the file $backupfile as gz file or not ($zip)
// returns backup file name if name has changed (zip), else TRUE. If saving failed, return value is FALSE
function save_to_file($backupfile, $zip, $fileData)
{
global $path_to_root;
if ($zip == "gzip")
{
if ($zp = @gzopen(BACKUP_PATH . $backupfile, "a9"))
{
@gzwrite($zp, $fileData);
@gzclose($zp);
return true;
}
else
{
return false;
}
// $zip contains the timestamp
}
elseif ($zip == "zip")
{
// based on zip.lib.php 2.2 from phpMyBackupAdmin
// offical zip format: http://www.pkware.com/appnote.txt
// End of central directory record
$eof_ctrl_dir = "\x50\x4b\x05\x06\x00\x00\x00\x00";
// "local file header" segment
$unc_len = strlen($fileData);
$crc = crc32($fileData);
$zdata = gzcompress($fileData);
// string needed for decoding (because of crc bug)
//$name_suffix = substr($zdata, -4, 4);
//$name_suffix2 = "_";
//for ($i = 0; $i < 4; $i++)
// $name_suffix2 .= sprintf("%03d", ord($name_suffix[$i]));
//$backupfile = substr($backupfile, 0, strlen($backupfile) - 8) . $name_suffix2 . ".sql.zip";
$name = substr($backupfile, 0, strlen($backupfile) -4);
// fix crc bug
$zdata = substr(substr($zdata, 0, strlen($zdata) - 4), 2);
$c_len = strlen($zdata);
// dos time
$timearray = getdate($zip);
$dostime = (($timearray['year'] - 1980) << 25) | ($timearray['mon'] << 21) | ($timearray['mday'] << 16) |
($timearray['hours'] << 11) | ($timearray['minutes'] << 5) | ($timearray['seconds'] >> 1);
$dtime = dechex($dostime);
$hexdtime = "\x" . $dtime[6] . $dtime[7] . "\x" . $dtime[4].$dtime[5] . "\x" . $dtime[2] . $dtime[3] . "\x" . $dtime[0] . $dtime[1];
eval('$hexdtime="' . $hexdtime . '";');
// ver needed to extract, gen purpose bit flag, compression method, last mod time and date
$sub1 = "\x14\x00" . "\x00\x00" . "\x08\x00" . $hexdtime;
// crc32, compressed filesize, uncompressed filesize
$sub2 = pack('V', $crc) . pack('V', $c_len) . pack('V', $unc_len);
$fr = "\x50\x4b\x03\x04" . $sub1. $sub2;
// length of filename, extra field length
$fr .= pack('v', strlen($name)) . pack('v', 0);
$fr .= $name;
// "file data" segment and "data descriptor" segment (optional but necessary if archive is not served as file)
$fr .= $zdata . $sub2;
// now add to central directory record
$cdrec = "\x50\x4b\x01\x02";
$cdrec .= "\x00\x00"; // version made by
$cdrec .= $sub1 . $sub2;
// length of filename, extra field length, file comment length, disk number start, internal file attributes, external file attributes - 'archive' bit set, offset
$cdrec .= pack('v', strlen($name)) . pack('v', 0) . pack('v', 0) . pack('v', 0) . pack('v', 0) . pack('V', 32) . pack('V',0);
$cdrec .= $name;
// combine data
$fileData = $fr . $cdrec . $eof_ctrl_dir;
// total # of entries "on this disk", total # of entries overall, size of central dir, offset to start of central dir, .zip file comment length
$fileData .= pack('v', 1) . pack('v', 1) . pack('V', strlen($cdrec)) . pack('V', strlen($fr)) . "\x00\x00";
if ($zp = @fopen(BACKUP_PATH . $backupfile, "a"))
{
@fwrite($zp, $fileData);
@fclose($zp);
return true;
}
else
{
return false;
}
// uncompressed
}
else
{
if ($zp = @fopen(BACKUP_PATH . $backupfile, "a"))
{
@fwrite($zp, $fileData);
@fclose($zp);
return true;
}
else
{
return false;
}
}
}
?>