2 /**********************************************************************
3 Copyright (C) FrontAccounting, LLC.
4 Released under the terms of the GNU Affero General Public License,
5 AGPL, as published by the Free Software Foundation, either version
6 3 of the License, or (at your option) any later version.
7 This program is distributed in the hope that it will be useful,
8 but WITHOUT ANY WARRANTY; without even the implied warranty of
9 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
10 See the License here <http://www.gnu.org/licenses/agpl-3.0.html>.
11 ***********************************************************************/
12 function write_config_db($new = false)
14 global $path_to_root, $def_coy, $db_connections, $tb_pref_counter;
15 include_once($path_to_root . "/config_db.php");
19 $n = count($db_connections);
21 $msg .= "/*Connection Information for the database\n";
22 $msg .= "- \$def_coy is the default company that is pre-selected on login\n\n";
23 $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";
24 $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";
25 $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";
26 $msg .= "- password is the password the user of the database requires to be sent to authorise the above database user\n\n";
27 $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";
28 $msg .= " The scripts for MySQL provided use the name logicworks */\n\n\n";
30 $msg .= "\$def_coy = " . $def_coy . ";\n\n";
31 $msg .= "\$tb_pref_counter = " . $tb_pref_counter . ";\n\n";
32 $msg .= "\$db_connections = array (\n";
34 for ($i = 0; $i < $n; $i++)
40 $msg .= "('name' => '" . $db_connections[$i]['name'] . "',\n";
41 $msg .= "\t\t'host' => '" . $db_connections[$i]['host'] . "',\n";
42 $msg .= "\t\t'dbuser' => '" . $db_connections[$i]['dbuser'] . "',\n";
43 $msg .= "\t\t'dbpassword' => '" . $db_connections[$i]['dbpassword'] . "',\n";
44 $msg .= "\t\t'dbname' => '" . $db_connections[$i]['dbname'] . "',\n";
45 $msg .= "\t\t'tbpref' => '" . $db_connections[$i]['tbpref'] . "')";
52 $filename = $path_to_root . "/config_db.php";
53 // Check if the file exists and is writable first.
54 if (file_exists($filename) && is_writable($filename))
56 if (!$zp = fopen($filename, 'w'))
62 if (!fwrite($zp, $msg))
78 function db_create_db($connection)
80 $db = mysql_connect($connection["host"] ,
81 $connection["dbuser"], $connection["dbpassword"]);
82 if (!mysql_select_db($connection["dbname"], $db))
84 $sql = "CREATE DATABASE " . $connection["dbname"] . "";
85 if (!mysql_query($sql))
87 mysql_select_db($connection["dbname"], $db);
92 function db_drop_db($connection)
95 if ($connection["tbpref"] == "")
97 $sql = "DROP DATABASE " . $connection["dbname"] . "";
98 return mysql_query($sql);
102 $res = db_query("show table status");
103 $all_tables = array();
104 while($row = db_fetch($res))
105 $all_tables[] = $row;
106 // get table structures
107 foreach ($all_tables as $table)
109 if (strpos($table['Name'], $connection["tbpref"]) === 0)
110 db_query("DROP TABLE `".$table['Name'] . "`");
112 //deleting the tables, how??
117 function db_import($filename, $connection, $force=true)
120 $allowed_commands = array(
121 "create" => 'table_queries',
122 "alter table" => 'table_queries',
123 "insert" => 'data_queries',
124 "update" => 'data_queries',
125 "drop table if exists" => 'drop_queries');
126 $ignored_mysql_errors = array( //errors ignored in normal (non forced) mode
127 '1022', // duplicate key
128 '1060', // duplicate column name
129 '1061', // duplicate key name
130 '1062', // duplicate key entry
131 '1091' // can't drop key/column check if exists
133 $data_queries = array();
134 $drop_queries = array();
135 $table_queries = array();
136 $sql_errors = array();
138 ini_set("max_execution_time", "180");
139 // uncrompress gziped backup files
140 if (strpos($filename, ".gzip") || strpos($filename, ".GZIP"))
141 $lines = db_ungzip("lines", $filename);
142 elseif (strpos($filename, ".zip") || strpos($filename, ".ZIP"))
143 $lines = db_unzip("lines", $filename);
145 $lines = file("". $filename);
149 foreach($lines as $line_no => $line)
153 $line = str_replace("0_", $connection["tbpref"], $line);
155 if ($query_table == '')
156 { // check if line begins with one of allowed queries
157 foreach($allowed_commands as $cmd => $table)
159 if (strtolower(substr($line, 0, strlen($cmd))) == $cmd)
161 $query_table = $table;
162 if (strstr(strtolower($line), ' drop column '))
163 $query_table = 'drop_queries';
164 ${$query_table}[] = array('', $line_no+1);
169 if($query_table != '') // inside allowed query
171 $table = $query_table;
172 if (substr($line, -1) == ';') // end of query found
174 $line = substr($line, 0, strlen($line) - 1); // strip ';'
177 ${$table}[count(${$table}) - 1][0] .= $line . "\n";
182 { // for debugging purposes
183 global $path_to_root;
184 $f = fopen($path_to_root.'/tmp/dbimport.txt', 'w+');
185 fwrite($f, print_r($drop_queries,true) ."\n");
186 fwrite($f, print_r($table_queries,true) ."\n");
187 fwrite($f, print_r($data_queries,true));
191 // execute drop tables if exists queries
192 if ($force && is_array($drop_queries))
194 foreach($drop_queries as $drop_query)
196 if (!db_query($drop_query[0]))
198 if (!in_array(db_error_no(), $ignored_mysql_errors))
199 $sql_errors[] = array(db_error_no().':'.db_error_msg($db), $drop_query[1]);
204 // execute create tables queries
205 if (is_array($table_queries))
207 foreach($table_queries as $table_query)
209 if (!db_query($table_query[0]))
211 if (!$force || !in_array(db_error_no(), $ignored_mysql_errors))
212 $sql_errors[] = array(db_error_msg($db), $table_query[1]);
217 // execute insert data queries
218 if (is_array($data_queries))
220 foreach($data_queries as $data_query)
222 if (!db_query($data_query[0]))
224 if (!$force || !in_array(db_error_no(),$ignored_mysql_errors))
225 $sql_errors[] = array(db_error_msg($db), $data_query[1]);
230 if (count($sql_errors)) {
231 // display first failure message; the rest are probably derivative
232 $err = $sql_errors[0];
233 display_error(sprintf(_("SQL script execution failed in line %d: %s"),
238 //$shell_command = C_MYSQL_PATH . " -h $host -u $user -p{$password} $dbname < $filename";
239 //shell_exec($shell_command);
242 // returns the content of the gziped $path backup file. use of $mode see below
243 function db_ungzip($mode, $path)
245 $file_data = gzfile($path);
246 // returns one string or an array of lines
247 if ($mode != "lines")
248 return implode("",$file_data);
253 // returns the content of the ziped $path backup file. use of $mode see below
254 function db_unzip($mode, $path)
257 $all = implode("", file($path));
259 // convert path to name of ziped file
260 $filename = ereg_replace(".*/", "", $path);
261 $filename = substr($filename, 0, strlen($filename) - 4);
263 // compare filname in zip and filename from $_GET
264 if (substr($all, 30, strlen($filename)) != $filename)
267 // exit if names differ
268 //echo F_WRONG_FILE.".";
273 // get the suffix of the filename in hex
274 $crc_bugfix = substr(substr($filename, 0, strlen($filename) - 4), strlen($filename) - 12 - 4);
277 // convert hex to ascii
278 for ($i=0; $i < 12; )
279 $suffix .= chr($crc_bugfix[$i++] . $crc_bugfix[$i++] . $crc_bugfix[$i++]);
281 // remove central directory information (we have always just one ziped file)
282 $comp = substr($all, -(strlen($all) - 30 - strlen($filename)));
283 $comp = substr($comp, 0, (strlen($comp) - 80 - strlen($filename)));
285 // fix the crc bugfix (see function save_to_file)
286 $comp = "x
\9c" . $comp . $suffix;
287 $file_data = gzuncompress($comp);
290 // returns one string or an array of lines
291 if ($mode != "lines")
294 return explode("\n", $file_data);
297 // generates a dump of $db database
298 // $drop and $zip tell if to include the drop table statement or dry to pack
299 function db_export($conn, $filename, $zip='no', $comment='', $tbpref = TB_PREF)
302 global $app_title, $version, $power_url, $path_to_root;
305 // set max string size before writing to file
306 $max_size = 1048576 * 2; // 2 MB
307 // changes max size if value can be retrieved
308 if (ini_get("memory_limit"))
309 $max_size = 900000 * ini_get("memory_limit");
311 // set backupfile name
313 $backupfile = $filename . ".gz";
314 elseif ($zip == "zip")
315 $backupfile = $filename . ".zip";
317 $backupfile = $filename;
318 $company = get_company_pref('coy_name', $tbpref);
321 $out="# MySQL dump of database '".$conn["dbname"]."' on host '".$conn["host"]."'\n";
322 $out.="# Backup Date and Time: ".date("Y-m-d H:i")."\n";
323 $out.="# Built by " . $app_title . " " . $version ."\n";
324 $out.="# ".$power_url."\n";
325 $out.="# Company: ". @html_entity_decode($company, ENT_COMPAT, $_SESSION['language']->encoding)."\n";
326 $out.="# User: ".$_SESSION["wa_current_user"]->name."\n\n";
328 // write users comment
331 $out .= "# Comment:\n";
332 $comment=preg_replace("'\n'","\n# ","# ".$comment);
333 //$comment=str_replace("\n", "\n# ", $comment);
334 foreach(explode("\n",$comment) as $line)
339 //$out.="use ".$db.";\n"; we don't use this option.
341 // get auto_increment values and names of all tables
342 $res = db_query("show table status");
343 $all_tables = array();
344 while($row = db_fetch($res))
346 //if ($conn["tbpref"] == "" || strpos($row['Name'], $conn["tbpref"]) !== false) replaced
347 if (($conn["tbpref"] == "" && !preg_match('/[0-9]+_/', $row['Name'])) ||
348 ($conn["tbpref"] != "" && strpos($row['Name'], $conn["tbpref"]) !== false))
349 $all_tables[] = $row;
351 // get table structures
352 foreach ($all_tables as $table)
354 $res1 = db_query("SHOW CREATE TABLE `" . $table['Name'] . "`");
355 $tmp = db_fetch($res1);
356 $table_sql[$table['Name']] = $tmp["Create Table"];
361 if (isset($table_sql))
363 foreach($table_sql as $tablenme=>$table)
366 // save all tables, needed for creating this table in $fks
367 while (($ref_pos = strpos($tmp_table, " REFERENCES ")) > 0)
369 $tmp_table = substr($tmp_table, $ref_pos + 12);
370 $ref_pos = strpos($tmp_table, "(");
371 $fks[$tablenme][] = substr($tmp_table, 0, $ref_pos);
376 $all_tables = order_sql_tables($all_tables, $fks);
378 // as long as no error occurred
381 //while($row=@mysql_fetch_array($res))
382 foreach ($all_tables as $row)
384 $tablename = $row['Name'];
385 $auto_incr[$tablename] = $row['Auto_increment'];
389 $out.="### Structure of table `".$tablename."` ###\n\n";
391 $out.="DROP TABLE IF EXISTS `".$tablename."`;\n\n";
392 $out.=$table_sql[$tablename];
394 // add auto_increment value
395 if ($auto_incr[$tablename])
396 $out.=" AUTO_INCREMENT=".$auto_incr[$tablename];
403 $out.="### Data of table `".$tablename."` ###\n\n";
405 // check if field types are NULL or NOT NULL
406 $res3 = db_query("SHOW COLUMNS FROM `" . $tablename . "`");
408 $field_type = array();
409 for ($j = 0; $j < db_num_rows($res3); $j++)
411 $row3 = db_fetch($res3);
412 $field_type[] = $row3[2];
415 $res2 = db_query("SELECT * FROM `" . $tablename . "`");
416 for ($j = 0; $j < db_num_rows($res2); $j++)
418 $out .= "INSERT INTO `" . $tablename . "` VALUES (";
419 $row2 = db_fetch_row($res2);
420 // run through each field
421 for ($k = 0; $k < $nf = db_num_fields($res2); $k++)
423 $out .= db_escape(@html_entity_decode($row2[$k], ENT_COMPAT, $_SESSION['language']->encoding));
429 // if saving is successful, then empty $out, else set error flag
430 if (strlen($out) > $max_size && $zip != "zip")
432 if (save_to_file($backupfile, $zip, $out))
439 // an error occurred! Try to delete file and return error status
443 @unlink(BACKUP_PATH . $backupfile);
447 // if saving is successful, then empty $out, else set error flag
448 if (strlen($out) > $max_size && $zip != "zip")
450 if (save_to_file($backupfile, $zip, $out))
457 // an error occurred! Try to delete file and return error status
461 @unlink(BACKUP_PATH . $backupfile);
465 // if (mysql_error()) return "DB_ERROR";
466 //@mysql_close($con);
470 if (save_to_file($backupfile, $zip, $out))
476 @unlink(BACKUP_PATH . $backupfile);
482 // orders the tables in $tables according to the constraints in $fks
483 // $fks musst be filled like this: $fks[tablename][0]=needed_table1; $fks[tablename][1]=needed_table2; ...
484 function order_sql_tables($tables, $fks)
486 // do not order if no contraints exist
491 $new_tables = array();
494 while (count($tables) && $modified == true)
497 foreach ($tables as $key=>$row)
499 // delete from $tables and add to $new_tables
500 if (isset($fks[$row['Name']]))
502 foreach($fks[$row['Name']] as $needed)
504 // go to next table if not all needed tables exist in $existing
505 if (!in_array($needed,$existing))
509 // delete from $tables and add to $new_tables
510 $existing[] = $row['Name'];
511 $new_tables[] = $row;
513 unset($tables[$key]);
521 // probably there are 'circles' in the constraints, bacause of that no proper backups can be created yet
522 // TODO: this will be fixed sometime later through using 'alter table' commands to add the constraints after generating the tables
523 // until now, just add the lasting tables to $new_tables, return them and print a warning
524 foreach($tables as $row)
525 $new_tables[] = $row;
526 echo "<div class=\"red_left\">THIS DATABASE SEEMS TO CONTAIN 'RING CONSTRAINTS'. WA DOES NOT SUPPORT THEM. PROBABLY THE FOLOWING BACKUP IS DEFECT!</div>";
531 // saves the string in $fileData to the file $backupfile as gz file or not ($zip)
532 // returns backup file name if name has changed (zip), else TRUE. If saving failed, return value is FALSE
533 function save_to_file($backupfile, $zip, $fileData)
535 global $path_to_root;
539 if ($zp = @gzopen(BACKUP_PATH . $backupfile, "a9"))
541 @gzwrite($zp, $fileData);
550 // $zip contains the timestamp
552 elseif ($zip == "zip")
554 // based on zip.lib.php 2.2 from phpMyBackupAdmin
555 // offical zip format: http://www.pkware.com/appnote.txt
557 // End of central directory record
558 $eof_ctrl_dir = "\x50\x4b\x05\x06\x00\x00\x00\x00";
560 // "local file header" segment
561 $unc_len = strlen($fileData);
562 $crc = crc32($fileData);
563 $zdata = gzcompress($fileData);
565 // string needed for decoding (because of crc bug)
566 //$name_suffix = substr($zdata, -4, 4);
567 //$name_suffix2 = "_";
568 //for ($i = 0; $i < 4; $i++)
569 // $name_suffix2 .= sprintf("%03d", ord($name_suffix[$i]));
570 //$backupfile = substr($backupfile, 0, strlen($backupfile) - 8) . $name_suffix2 . ".sql.zip";
571 $name = substr($backupfile, 0, strlen($backupfile) -4);
574 $zdata = substr(substr($zdata, 0, strlen($zdata) - 4), 2);
575 $c_len = strlen($zdata);
578 $timearray = getdate($zip);
579 $dostime = (($timearray['year'] - 1980) << 25) | ($timearray['mon'] << 21) | ($timearray['mday'] << 16) |
580 ($timearray['hours'] << 11) | ($timearray['minutes'] << 5) | ($timearray['seconds'] >> 1);
581 $dtime = dechex($dostime);
582 $hexdtime = "\x" . $dtime[6] . $dtime[7] . "\x" . $dtime[4].$dtime[5] . "\x" . $dtime[2] . $dtime[3] . "\x" . $dtime[0] . $dtime[1];
583 eval('$hexdtime="' . $hexdtime . '";');
585 // ver needed to extract, gen purpose bit flag, compression method, last mod time and date
586 $sub1 = "\x14\x00" . "\x00\x00" . "\x08\x00" . $hexdtime;
588 // crc32, compressed filesize, uncompressed filesize
589 $sub2 = pack('V', $crc) . pack('V', $c_len) . pack('V', $unc_len);
591 $fr = "\x50\x4b\x03\x04" . $sub1. $sub2;
593 // length of filename, extra field length
594 $fr .= pack('v', strlen($name)) . pack('v', 0);
597 // "file data" segment and "data descriptor" segment (optional but necessary if archive is not served as file)
598 $fr .= $zdata . $sub2;
600 // now add to central directory record
601 $cdrec = "\x50\x4b\x01\x02";
602 $cdrec .= "\x00\x00"; // version made by
603 $cdrec .= $sub1 . $sub2;
605 // length of filename, extra field length, file comment length, disk number start, internal file attributes, external file attributes - 'archive' bit set, offset
606 $cdrec .= pack('v', strlen($name)) . pack('v', 0) . pack('v', 0) . pack('v', 0) . pack('v', 0) . pack('V', 32) . pack('V',0);
610 $fileData = $fr . $cdrec . $eof_ctrl_dir;
612 // total # of entries "on this disk", total # of entries overall, size of central dir, offset to start of central dir, .zip file comment length
613 $fileData .= pack('v', 1) . pack('v', 1) . pack('V', strlen($cdrec)) . pack('V', strlen($fr)) . "\x00\x00";
615 if ($zp = @fopen(BACKUP_PATH . $backupfile, "a"))
617 @fwrite($zp, $fileData);
630 if ($zp = @fopen(BACKUP_PATH . $backupfile, "a"))
632 @fwrite($zp, $fileData);