/docroot/pgadmin/dataimport.php
PHP | 298 lines | 231 code | 25 blank | 42 comment | 43 complexity | e5cd5727b029e340e58fba31f460e77e MD5 | raw file
- <?php
- /**
- * Does an import to a particular table from a text file
- *
- * $Id: dataimport.php,v 1.11 2007/01/22 16:33:01 soranzo Exp $
- */
- // Prevent timeouts on large exports (non-safe mode only)
- if (!ini_get('safe_mode')) set_time_limit(0);
- // Include application functions
- include_once('./libraries/lib.inc.php');
- // Default state for XML parser
- $state = 'XML';
- $curr_col_name = null;
- $curr_col_val = null;
- $curr_col_null = false;
- $curr_row = array();
- /**
- * Open tag handler for XML import feature
- */
- function _startElement($parser, $name, $attrs) {
- global $data, $misc, $lang;
- global $state, $curr_row, $curr_col_name, $curr_col_val, $curr_col_null;
- switch ($name) {
- case 'DATA':
- if ($state != 'XML') {
- $data->rollbackTransaction();
- $misc->printMsg($lang['strimporterror']);
- exit;
- }
- $state = 'DATA';
- break;
- case 'HEADER':
- if ($state != 'DATA') {
- $data->rollbackTransaction();
- $misc->printMsg($lang['strimporterror']);
- exit;
- }
- $state = 'HEADER';
- break;
- case 'RECORDS':
- if ($state != 'READ_HEADER') {
- $data->rollbackTransaction();
- $misc->printMsg($lang['strimporterror']);
- exit;
- }
- $state = 'RECORDS';
- break;
- case 'ROW':
- if ($state != 'RECORDS') {
- $data->rollbackTransaction();
- $misc->printMsg($lang['strimporterror']);
- exit;
- }
- $state = 'ROW';
- $curr_row = array();
- break;
- case 'COLUMN':
- // We handle columns in rows
- if ($state == 'ROW') {
- $state = 'COLUMN';
- $curr_col_name = $attrs['NAME'];
- $curr_col_null = isset($attrs['NULL']);
- }
- // And we ignore columns in headers and fail in any other context
- elseif ($state != 'HEADER') {
- $data->rollbackTransaction();
- $misc->printMsg($lang['strimporterror']);
- exit;
- }
- break;
- default:
- // An unrecognised tag means failure
- $data->rollbackTransaction();
- $misc->printMsg($lang['strimporterror']);
- exit;
- }
- }
-
- /**
- * Close tag handler for XML import feature
- */
- function _endElement($parser, $name) {
- global $data, $misc, $lang;
- global $state, $curr_row, $curr_col_name, $curr_col_val, $curr_col_null;
- switch ($name) {
- case 'DATA':
- $state = 'READ_DATA';
- break;
- case 'HEADER':
- $state = 'READ_HEADER';
- break;
- case 'RECORDS':
- $state = 'READ_RECORDS';
- break;
- case 'ROW':
- // Build value map in order to insert row into table
- $fields = array();
- $vars = array();
- $nulls = array();
- $format = array();
- $types = array();
- $i = 0;
- foreach ($curr_row as $k => $v) {
- $fields[$i] = $k;
- // Check for nulls
- if ($v === null) $nulls[$i] = 'on';
- // Add to value array
- $vars[$i] = $v;
- // Format is always VALUE
- $format[$i] = 'VALUE';
- // Type is always text
- $types[$i] = 'text';
- $i++;
- }
- $status = $data->insertRow($_REQUEST['table'], $fields, $vars, $nulls, $format, $types);
- if ($status != 0) {
- $data->rollbackTransaction();
- $misc->printMsg($lang['strimporterror']);
- exit;
- }
- $curr_row = array();
- $state = 'RECORDS';
- break;
- case 'COLUMN':
- $curr_row[$curr_col_name] = ($curr_col_null ? null : $curr_col_val);
- $curr_col_name = null;
- $curr_col_val = null;
- $curr_col_null = false;
- $state = 'ROW';
- break;
- default:
- // An unrecognised tag means failure
- $data->rollbackTransaction();
- $misc->printMsg($lang['strimporterror']);
- exit;
- }
- }
- /**
- * Character data handler for XML import feature
- */
- function _charHandler($parser, $cdata) {
- global $data, $misc, $lang;
- global $state, $curr_col_val;
- if ($state == 'COLUMN') {
- $curr_col_val .= $cdata;
- }
- }
- function loadNULLArray() {
- $array = array();
- if (isset($_POST['allowednulls'])) {
- foreach ($_POST['allowednulls'] as $null_char)
- $array[] = $null_char;
- }
- return $array;
- }
- function determineNull($field, $null_array) {
- return in_array($field, $null_array);
- }
- $misc->printHeader($lang['strimport']);
- $misc->printTrail('table');
- $misc->printTabs('table','import');
- // Check that file is specified and is an uploaded file
- if (isset($_FILES['source']) && is_uploaded_file($_FILES['source']['tmp_name']) && is_readable($_FILES['source']['tmp_name'])) {
-
- $fd = fopen($_FILES['source']['tmp_name'], 'r');
- // Check that file was opened successfully
- if ($fd !== false) {
- $null_array = loadNULLArray();
- $status = $data->beginTransaction();
- if ($status != 0) {
- $misc->printMsg($lang['strimporterror']);
- exit;
- }
- // If format is set to 'auto', then determine format automatically from file name
- if ($_REQUEST['format'] == 'auto') {
- $extension = substr(strrchr($_FILES['source']['name'], '.'), 1);
- switch ($extension) {
- case 'csv':
- $_REQUEST['format'] = 'csv';
- break;
- case 'txt':
- $_REQUEST['format'] = 'tab';
- break;
- case 'xml':
- $_REQUEST['format'] = 'xml';
- break;
- default:
- $data->rollbackTransaction();
- $misc->printMsg($lang['strimporterror-fileformat']);
- exit;
- }
- }
- // Do different import technique depending on file format
- switch ($_REQUEST['format']) {
- case 'csv':
- case 'tab':
- // XXX: Length of CSV lines limited to 100k
- $csv_max_line = 100000;
- // Set delimiter to tabs or commas
- if ($_REQUEST['format'] == 'csv') $csv_delimiter = ',';
- else $csv_delimiter = "\t";
- // Get first line of field names
- $fields = fgetcsv($fd, $csv_max_line, $csv_delimiter);
- $row = 2; //We start on the line AFTER the field names
- while ($line = fgetcsv($fd, $csv_max_line, $csv_delimiter)) {
- // Build value map
- $t_fields = array();
- $vars = array();
- $nulls = array();
- $format = array();
- $types = array();
- $i = 0;
- foreach ($fields as $f) {
- // Check that there is a column
- if (!isset($line[$i])) {
- $misc->printMsg(sprintf($lang['strimporterrorline-badcolumnnum'], $row));
- exit;
- }
- $t_fields[$i] = $f;
-
- // Check for nulls
- if (determineNull($line[$i], $null_array)) {
- $nulls[$i] = 'on';
- }
- // Add to value array
- $vars[$i] = $line[$i];
- // Format is always VALUE
- $format[$i] = 'VALUE';
- // Type is always text
- $types[$i] = 'text';
- $i++;
- }
- $status = $data->insertRow($_REQUEST['table'], $t_fields, $vars, $nulls, $format, $types);
- if ($status != 0) {
- $data->rollbackTransaction();
- $misc->printMsg(sprintf($lang['strimporterrorline'], $row));
- exit;
- }
- $row++;
- }
- break;
- case 'xml':
- $parser = xml_parser_create();
- xml_set_element_handler($parser, '_startElement', '_endElement');
- xml_set_character_data_handler($parser, '_charHandler');
-
- while (!feof($fd)) {
- $line = fgets($fd, 4096);
- xml_parse($parser, $line);
- }
-
- xml_parser_free($parser);
- break;
- default:
- // Unknown type
- $data->rollbackTransaction();
- $misc->printMsg($lang['strinvalidparam']);
- exit;
- }
-
- $status = $data->endTransaction();
- if ($status != 0) {
- $misc->printMsg($lang['strimporterror']);
- exit;
- }
- fclose($fd);
- $misc->printMsg($lang['strfileimported']);
- }
- else {
- // File could not be opened
- $misc->printMsg($lang['strimporterror']);
- }
- }
- else {
- // Upload went wrong
- $misc->printMsg($lang['strimporterror-uploadedfile']);
- }
-
- $misc->printFooter();
- ?>