3 function write_config_db($new = false)
5 global $path_to_root, $def_coy, $db_connections, $tb_pref_counter;
6 include_once($path_to_root . "/config_db.php");
10 $n = count($db_connections);
12 $msg .= "/*Connection Information for the database\n";
13 $msg .= "- \$def_coy is the default company that is pre-selected on login\n\n";
14 $msg .= "- host is the computer ip address or name where the database is the default is localhost assuming that the web server is also the sql server\n\n";
15 $msg .= "- user is the user name under which the database should be accessed - need to change to the mysql (or other DB) user set up for purpose\n";
16 $msg .= " NB it is not secure to use root as the user with no password - a user with appropriate privileges must be set up\n\n";
17 $msg .= "- password is the password the user of the database requires to be sent to authorise the above database user\n\n";
18 $msg .= "- DatabaseName is the name of the database as defined in the RDMS being used. Typically RDMS allow many databases to be maintained under the same server.\n";
19 $msg .= " The scripts for MySQL provided use the name logicworks */\n\n\n";
21 $msg .= "\$def_coy = " . $def_coy . ";\n\n";
22 $msg .= "\$tb_pref_counter = " . $tb_pref_counter . ";\n\n";
23 $msg .= "\$db_connections = array (\n";
25 for ($i = 0; $i < $n; $i++)
31 $msg .= "('name' => '" . $db_connections[$i]['name'] . "',\n";
32 $msg .= "\t\t'host' => '" . $db_connections[$i]['host'] . "',\n";
33 $msg .= "\t\t'dbuser' => '" . $db_connections[$i]['dbuser'] . "',\n";
34 $msg .= "\t\t'dbpassword' => '" . $db_connections[$i]['dbpassword'] . "',\n";
35 $msg .= "\t\t'dbname' => '" . $db_connections[$i]['dbname'] . "',\n";
36 $msg .= "\t\t'tbpref' => '" . $db_connections[$i]['tbpref'] . "')";
43 $filename = $path_to_root . "/config_db.php";
44 // Check if the file exists and is writable first.
45 if (file_exists($filename) && is_writable($filename))
47 if (!$zp = fopen($filename, 'w'))
53 if (!fwrite($zp, $msg))
69 function db_create_db($connection)
71 $db = mysql_connect($connection["host"] ,
72 $connection["dbuser"], $connection["dbpassword"]);
73 if (!mysql_select_db($connection["dbname"], $db))
75 $sql = "CREATE DATABASE " . $connection["dbname"] . "";
76 if (!mysql_query($sql))
78 mysql_select_db($connection["dbname"], $db);
83 function db_drop_db($connection)
86 if ($connection["tbpref"] == "")
88 $sql = "DROP DATABASE " . $connection["dbname"] . "";
89 return mysql_query($sql);
93 $res = db_query("show table status");
94 $all_tables = array();
95 while($row = db_fetch($res))
97 // get table structures
98 foreach ($all_tables as $table)
100 if (strpos($table['Name'], $connection["tbpref"]) === 0)
101 db_query("DROP TABLE `".$table['Name'] . "`");
103 //deleting the tables, how??
108 function db_import($filename, $connection)
111 $allowed_commands = array(
112 "create" => 'table_queries',
113 "alter table" => 'table_queries',
114 "insert" => 'data_queries',
115 "update" => 'data_queries',
116 "drop table if exists" => 'drop_queries');
118 $data_queries = array();
119 $drop_queries = array();
120 $table_queries = array();
121 $sql_errors = array();
123 ini_set("max_execution_time", "180");
124 // uncrompress gziped backup files
125 if (strpos($filename, ".gzip") || strpos($filename, ".GZIP"))
126 $lines = db_ungzip("lines", $filename);
127 elseif (strpos($filename, ".zip") || strpos($filename, ".ZIP"))
128 $lines = db_unzip("lines", $filename);
130 $lines = file("". $filename);
134 foreach($lines as $line_no => $line)
138 $line = str_replace("0_", $connection["tbpref"], $line);
140 if ($query_table == '')
141 { // check if line begins with one of allowed queries
142 foreach($allowed_commands as $cmd => $table)
144 if (strtolower(substr($line, 0, strlen($cmd))) == $cmd)
146 $query_table = $table;
147 ${$query_table}[] = array('', $line_no+1);
152 if($query_table != '') // inside allowed query
154 $table = $query_table;
155 if (substr($line, -1) == ';') // end of query found
157 $line = substr($line, 0, strlen($line) - 1); // strip ';'
160 ${$table}[count(${$table}) - 1][0] .= $line . "\n";
165 /* { // for debugging purposes
166 global $path_to_root;
167 $f = fopen($path_to_root.'/tmp/dbimport.txt', 'w');
168 fwrite($f, print_r($drop_queries,true) ."\n");
169 fwrite(print_r($table_queries,true) ."\n");
170 fwrite(print_r($data_queries,true));
174 // execute drop tables if exists queries
175 if (is_array($drop_queries))
177 foreach($drop_queries as $drop_query)
179 if (!db_query($drop_query[0]))
181 $sql_errors[] = array(db_error_msg($db), $drop_query[1]);
186 // execute create tables queries
187 if (is_array($table_queries))
189 foreach($table_queries as $table_query)
191 if (!db_query($table_query[0]))
193 $sql_errors[] = array(db_error_msg($db), $table_query[1]);
198 // execute insert data queries
199 if (is_array($data_queries))
201 foreach($data_queries as $data_query)
203 if (!db_query($data_query[0]))
205 $sql_errors[] = array(db_error_msg($db), $data_query[1]);
211 if (count($sql_errors)) {
212 // display first failure message; the rest are probably derivative
213 $err = $sql_errors[0];
214 display_error(sprintf(_("SQL script execution failed in line %d: %s"),
219 //$shell_command = C_MYSQL_PATH . " -h $host -u $user -p{$password} $dbname < $filename";
220 //shell_exec($shell_command);
223 // returns the content of the gziped $path backup file. use of $mode see below
224 function db_ungzip($mode, $path)
226 $file_data = gzfile($path);
227 // returns one string or an array of lines
228 if ($mode != "lines")
229 return implode("",$file_data);
234 // returns the content of the ziped $path backup file. use of $mode see below
235 function db_unzip($mode, $path)
238 $all = implode("", file($path));
240 // convert path to name of ziped file
241 $filename = ereg_replace(".*/", "", $path);
242 $filename = substr($filename, 0, strlen($filename) - 4);
244 // compare filname in zip and filename from $_GET
245 if (substr($all, 30, strlen($filename)) != $filename)
248 // exit if names differ
249 //echo F_WRONG_FILE.".";
254 // get the suffix of the filename in hex
255 $crc_bugfix = substr(substr($filename, 0, strlen($filename) - 4), strlen($filename) - 12 - 4);
258 // convert hex to ascii
259 for ($i=0; $i < 12; )
260 $suffix .= chr($crc_bugfix[$i++] . $crc_bugfix[$i++] . $crc_bugfix[$i++]);
262 // remove central directory information (we have always just one ziped file)
263 $comp = substr($all, -(strlen($all) - 30 - strlen($filename)));
264 $comp = substr($comp, 0, (strlen($comp) - 80 - strlen($filename)));
266 // fix the crc bugfix (see function save_to_file)
267 $comp = "x
\9c" . $comp . $suffix;
268 $file_data = gzuncompress($comp);
271 // returns one string or an array of lines
272 if ($mode != "lines")
275 return explode("\n", $file_data);
278 // generates a dump of $db database
279 // $drop and $zip tell if to include the drop table statement or dry to pack
280 function db_export($conn, $filename, $zip='no', $comment='')
283 global $app_title, $version, $power_url, $path_to_root;
287 // set max string size before writing to file
288 $max_size = 1048576 * 2; // 2 MB
289 // changes max size if value can be retrieved
290 if (ini_get("memory_limit"))
291 $max_size = 900000 * ini_get("memory_limit");
293 // set backupfile name
295 $backupfile = $filename . ".gz";
296 elseif ($zip == "zip")
297 $backupfile = $filename . ".zip";
299 $backupfile = $filename;
300 $company = get_company_pref('coy_name');
302 $out="# MySQL dump of database '".$conn["dbname"]."' on host '".$conn["host"]."'\n";
303 $out.="# Backup Date and Time: ".date("Y-m-d H:i")."\n";
304 $out.="# Built by " . $app_title . " " . $version ."\n";
305 $out.="# ".$power_url."\n";
306 $out.="# Company: ". @html_entity_decode($company, ENT_COMPAT, $_SESSION['language']->encoding)."\n";
307 $out.="# User: ".$_SESSION["wa_current_user"]->name."\n\n";
309 // write users comment
312 $out .= "# Comment:\n";
313 $comment=preg_replace("'\n'","\n# ","# ".$comment);
314 //$comment=str_replace("\n", "\n# ", $comment);
315 foreach(explode("\n",$comment) as $line)
320 //$out.="use ".$db.";\n"; we don't use this option.
322 // get auto_increment values and names of all tables
323 $res = db_query("show table status");
324 $all_tables = array();
325 while($row = db_fetch($res))
327 //if ($conn["tbpref"] == "" || strpos($row['Name'], $conn["tbpref"]) !== false) replaced
328 if (($conn["tbpref"] == "" && !preg_match('/[0-9]+_/', $row['Name'])) ||
329 ($conn["tbpref"] != "" && strpos($row['Name'], $conn["tbpref"]) !== false))
330 $all_tables[] = $row;
332 // get table structures
333 foreach ($all_tables as $table)
335 $res1 = db_query("SHOW CREATE TABLE `" . $table['Name'] . "`");
336 $tmp = db_fetch($res1);
337 $table_sql[$table['Name']] = $tmp["Create Table"];
342 if (isset($table_sql))
344 foreach($table_sql as $tablenme=>$table)
347 // save all tables, needed for creating this table in $fks
348 while (($ref_pos = strpos($tmp_table, " REFERENCES ")) > 0)
350 $tmp_table = substr($tmp_table, $ref_pos + 12);
351 $ref_pos = strpos($tmp_table, "(");
352 $fks[$tablenme][] = substr($tmp_table, 0, $ref_pos);
357 $all_tables = order_sql_tables($all_tables, $fks);
359 // as long as no error occurred
362 //while($row=@mysql_fetch_array($res))
363 foreach ($all_tables as $row)
365 $tablename = $row['Name'];
366 $auto_incr[$tablename] = $row['Auto_increment'];
370 $out.="### Structure of table `".$tablename."` ###\n\n";
372 $out.="DROP TABLE IF EXISTS `".$tablename."`;\n\n";
373 $out.=$table_sql[$tablename];
375 // add auto_increment value
376 if ($auto_incr[$tablename])
377 $out.=" AUTO_INCREMENT=".$auto_incr[$tablename];
384 $out.="### Data of table `".$tablename."` ###\n\n";
386 // check if field types are NULL or NOT NULL
387 $res3 = db_query("SHOW COLUMNS FROM `" . $tablename . "`");
389 $field_type = array();
390 for ($j = 0; $j < db_num_rows($res3); $j++)
392 $row3 = db_fetch($res3);
393 $field_type[] = $row3[2];
396 $res2 = db_query("SELECT * FROM `" . $tablename . "`");
397 for ($j = 0; $j < db_num_rows($res2); $j++)
399 $out .= "INSERT INTO `" . $tablename . "` VALUES (";
400 $row2 = db_fetch_row($res2);
401 // run through each field
402 for ($k = 0; $k < $nf = db_num_fields($res2); $k++)
404 $out .= db_escape(@html_entity_decode($row2[$k], ENT_COMPAT, $_SESSION['language']->encoding));
410 // if saving is successful, then empty $out, else set error flag
411 if (strlen($out) > $max_size && $zip != "zip")
413 if (save_to_file($backupfile, $zip, $out))
420 // an error occurred! Try to delete file and return error status
424 @unlink(BACKUP_PATH . $backupfile);
428 // if saving is successful, then empty $out, else set error flag
429 if (strlen($out) > $max_size && $zip != "zip")
431 if (save_to_file($backupfile, $zip, $out))
438 // an error occurred! Try to delete file and return error status
442 @unlink(BACKUP_PATH . $backupfile);
446 // if (mysql_error()) return "DB_ERROR";
447 //@mysql_close($con);
451 if (save_to_file($backupfile, $zip, $out))
457 @unlink(BACKUP_PATH . $backupfile);
463 // orders the tables in $tables according to the constraints in $fks
464 // $fks musst be filled like this: $fks[tablename][0]=needed_table1; $fks[tablename][1]=needed_table2; ...
465 function order_sql_tables($tables, $fks)
467 // do not order if no contraints exist
472 $new_tables = array();
475 while (count($tables) && $modified == true)
478 foreach ($tables as $key=>$row)
480 // delete from $tables and add to $new_tables
481 if (isset($fks[$row['Name']]))
483 foreach($fks[$row['Name']] as $needed)
485 // go to next table if not all needed tables exist in $existing
486 if (!in_array($needed,$existing))
490 // delete from $tables and add to $new_tables
491 $existing[] = $row['Name'];
492 $new_tables[] = $row;
494 unset($tables[$key]);
502 // probably there are 'circles' in the constraints, bacause of that no proper backups can be created yet
503 // TODO: this will be fixed sometime later through using 'alter table' commands to add the constraints after generating the tables
504 // until now, just add the lasting tables to $new_tables, return them and print a warning
505 foreach($tables as $row)
506 $new_tables[] = $row;
507 echo "<div class=\"red_left\">THIS DATABASE SEEMS TO CONTAIN 'RING CONSTRAINTS'. WA DOES NOT SUPPORT THEM. PROBABLY THE FOLOWING BACKUP IS DEFECT!</div>";
512 // saves the string in $fileData to the file $backupfile as gz file or not ($zip)
513 // returns backup file name if name has changed (zip), else TRUE. If saving failed, return value is FALSE
514 function save_to_file($backupfile, $zip, $fileData)
516 global $path_to_root;
520 if ($zp = @gzopen(BACKUP_PATH . $backupfile, "a9"))
522 @gzwrite($zp, $fileData);
531 // $zip contains the timestamp
533 elseif ($zip == "zip")
535 // based on zip.lib.php 2.2 from phpMyBackupAdmin
536 // offical zip format: http://www.pkware.com/appnote.txt
538 // End of central directory record
539 $eof_ctrl_dir = "\x50\x4b\x05\x06\x00\x00\x00\x00";
541 // "local file header" segment
542 $unc_len = strlen($fileData);
543 $crc = crc32($fileData);
544 $zdata = gzcompress($fileData);
546 // string needed for decoding (because of crc bug)
547 //$name_suffix = substr($zdata, -4, 4);
548 //$name_suffix2 = "_";
549 //for ($i = 0; $i < 4; $i++)
550 // $name_suffix2 .= sprintf("%03d", ord($name_suffix[$i]));
551 //$backupfile = substr($backupfile, 0, strlen($backupfile) - 8) . $name_suffix2 . ".sql.zip";
552 $name = substr($backupfile, 0, strlen($backupfile) -4);
555 $zdata = substr(substr($zdata, 0, strlen($zdata) - 4), 2);
556 $c_len = strlen($zdata);
559 $timearray = getdate($zip);
560 $dostime = (($timearray['year'] - 1980) << 25) | ($timearray['mon'] << 21) | ($timearray['mday'] << 16) |
561 ($timearray['hours'] << 11) | ($timearray['minutes'] << 5) | ($timearray['seconds'] >> 1);
562 $dtime = dechex($dostime);
563 $hexdtime = "\x" . $dtime[6] . $dtime[7] . "\x" . $dtime[4].$dtime[5] . "\x" . $dtime[2] . $dtime[3] . "\x" . $dtime[0] . $dtime[1];
564 eval('$hexdtime="' . $hexdtime . '";');
566 // ver needed to extract, gen purpose bit flag, compression method, last mod time and date
567 $sub1 = "\x14\x00" . "\x00\x00" . "\x08\x00" . $hexdtime;
569 // crc32, compressed filesize, uncompressed filesize
570 $sub2 = pack('V', $crc) . pack('V', $c_len) . pack('V', $unc_len);
572 $fr = "\x50\x4b\x03\x04" . $sub1. $sub2;
574 // length of filename, extra field length
575 $fr .= pack('v', strlen($name)) . pack('v', 0);
578 // "file data" segment and "data descriptor" segment (optional but necessary if archive is not served as file)
579 $fr .= $zdata . $sub2;
581 // now add to central directory record
582 $cdrec = "\x50\x4b\x01\x02";
583 $cdrec .= "\x00\x00"; // version made by
584 $cdrec .= $sub1 . $sub2;
586 // length of filename, extra field length, file comment length, disk number start, internal file attributes, external file attributes - 'archive' bit set, offset
587 $cdrec .= pack('v', strlen($name)) . pack('v', 0) . pack('v', 0) . pack('v', 0) . pack('v', 0) . pack('V', 32) . pack('V',0);
591 $fileData = $fr . $cdrec . $eof_ctrl_dir;
593 // total # of entries "on this disk", total # of entries overall, size of central dir, offset to start of central dir, .zip file comment length
594 $fileData .= pack('v', 1) . pack('v', 1) . pack('V', strlen($cdrec)) . pack('V', strlen($fr)) . "\x00\x00";
596 if ($zp = @fopen(BACKUP_PATH . $backupfile, "a"))
598 @fwrite($zp, $fileData);
611 if ($zp = @fopen(BACKUP_PATH . $backupfile, "a"))
613 @fwrite($zp, $fileData);