Viewing file:  ImportShp.php (10.77 KB) -rw-r--r--
Select action/file-type:
 (+) |  (+) |  (+) | Code (+) | Session (+) |  (+) | SDB (+) |  (+) |  (+) |  (+) |  (+) |  (+) |
<?php
/**
* ESRI Shape file import plugin for phpMyAdmin
*/
declare(strict_types=1);
namespace PhpMyAdmin\Plugins\Import;
use PhpMyAdmin\File;
use PhpMyAdmin\Gis\GisFactory;
use PhpMyAdmin\Gis\GisMultiLineString;
use PhpMyAdmin\Gis\GisMultiPoint;
use PhpMyAdmin\Gis\GisPoint;
use PhpMyAdmin\Gis\GisPolygon;
use PhpMyAdmin\Import;
use PhpMyAdmin\Message;
use PhpMyAdmin\Plugins\ImportPlugin;
use PhpMyAdmin\Properties\Plugins\ImportPluginProperties;
use PhpMyAdmin\Sanitize;
use PhpMyAdmin\ZipExtension;
use ZipArchive;
use const LOCK_EX;
use function count;
use function extension_loaded;
use function file_exists;
use function file_put_contents;
use function mb_strlen;
use function mb_substr;
use function pathinfo;
use function strcmp;
use function strlen;
use function substr;
use function trim;
use function unlink;
/**
* Handles the import for ESRI Shape files
*/
class ImportShp extends ImportPlugin
{
/** @var ZipExtension */
private $zipExtension;
public function __construct()
{
parent::__construct();
$this->setProperties();
if (! extension_loaded('zip')) {
return;
}
$this->zipExtension = new ZipExtension(new ZipArchive());
}
/**
* Sets the import plugin properties.
* Called in the constructor.
*
* @return void
*/
protected function setProperties()
{
$importPluginProperties = new ImportPluginProperties();
$importPluginProperties->setText(__('ESRI Shape File'));
$importPluginProperties->setExtension('shp');
$importPluginProperties->setOptions([]);
$importPluginProperties->setOptionsText(__('Options'));
$this->properties = $importPluginProperties;
}
/**
* Handles the whole import logic
*
* @param array $sql_data 2-element array with sql data
*
* @return void
*/
public function doImport(?File $importHandle = null, array &$sql_data = [])
{
global $db, $error, $finished, $import_file, $local_import_file, $message, $dbi;
$GLOBALS['finished'] = false;
if ($importHandle === null) {
return;
}
/** @see ImportShp::readFromBuffer() */
$GLOBALS['importHandle'] = $importHandle;
$compression = $importHandle->getCompression();
$shp = new ShapeFileImport(1);
// If the zip archive has more than one file,
// get the correct content to the buffer from .shp file.
if ($compression === 'application/zip'
&& $this->zipExtension->getNumberOfFiles($import_file) > 1
) {
if ($importHandle->openZip('/^.*\.shp$/i') === false) {
$message = Message::error(
__('There was an error importing the ESRI shape file: "%s".')
);
$message->addParam($importHandle->getError());
return;
}
}
$temp_dbf_file = false;
// We need dbase extension to handle .dbf file
if (extension_loaded('dbase')) {
$temp = $GLOBALS['PMA_Config']->getTempDir('shp');
// If we can extract the zip archive to 'TempDir'
// and use the files in it for import
if ($compression === 'application/zip' && $temp !== null) {
$dbf_file_name = $this->zipExtension->findFile(
$import_file,
'/^.*\.dbf$/i'
);
// If the corresponding .dbf file is in the zip archive
if ($dbf_file_name) {
// Extract the .dbf file and point to it.
$extracted = $this->zipExtension->extract(
$import_file,
$dbf_file_name
);
if ($extracted !== false) {
// remove filename extension, e.g.
// dresden_osm.shp/gis.osm_transport_a_v06.dbf
// to
// dresden_osm.shp/gis.osm_transport_a_v06
$path_parts = pathinfo($dbf_file_name);
$dbf_file_name = $path_parts['dirname'] . '/' . $path_parts['filename'];
// sanitize filename
$dbf_file_name = Sanitize::sanitizeFilename($dbf_file_name, true);
// concat correct filename and extension
$dbf_file_path = $temp . '/' . $dbf_file_name . '.dbf';
if (file_put_contents($dbf_file_path, $extracted, LOCK_EX) !== false) {
$temp_dbf_file = true;
// Replace the .dbf with .*, as required by the bsShapeFiles library.
$shp->FileName = substr($dbf_file_path, 0, -4) . '.*';
}
}
}
} elseif (! empty($local_import_file)
&& ! empty($GLOBALS['cfg']['UploadDir'])
&& $compression === 'none'
) {
// If file is in UploadDir, use .dbf file in the same UploadDir
// to load extra data.
// Replace the .shp with .*,
// so the bsShapeFiles library correctly locates .dbf file.
$file_name = mb_substr(
$import_file,
0,
mb_strlen($import_file) - 4
) . '.*';
$shp->FileName = $file_name;
}
}
// It should load data before file being deleted
$shp->loadFromFile('');
// Delete the .dbf file extracted to 'TempDir'
if ($temp_dbf_file
&& isset($dbf_file_path)
&& @file_exists($dbf_file_path)
) {
unlink($dbf_file_path);
}
if ($shp->lastError != '') {
$error = true;
$message = Message::error(
__('There was an error importing the ESRI shape file: "%s".')
);
$message->addParam($shp->lastError);
return;
}
switch ($shp->shapeType) {
// ESRI Null Shape
case 0:
break;
// ESRI Point
case 1:
$gis_type = 'point';
break;
// ESRI PolyLine
case 3:
$gis_type = 'multilinestring';
break;
// ESRI Polygon
case 5:
$gis_type = 'multipolygon';
break;
// ESRI MultiPoint
case 8:
$gis_type = 'multipoint';
break;
default:
$error = true;
$message = Message::error(
__('MySQL Spatial Extension does not support ESRI type "%s".')
);
$message->addParam($shp->getShapeName());
return;
}
if (isset($gis_type)) {
/** @var GisMultiLineString|GisMultiPoint|GisPoint|GisPolygon $gis_obj */
$gis_obj = GisFactory::factory($gis_type);
} else {
$gis_obj = null;
}
$num_rows = count($shp->records);
// If .dbf file is loaded, the number of extra data columns
$num_data_cols = $shp->getDBFHeader() !== null ? count($shp->getDBFHeader()) : 0;
$rows = [];
$col_names = [];
if ($num_rows != 0) {
foreach ($shp->records as $record) {
$tempRow = [];
if ($gis_obj == null) {
$tempRow[] = null;
} else {
$tempRow[] = "GeomFromText('"
. $gis_obj->getShape($record->SHPData) . "')";
}
if ($shp->getDBFHeader() !== null) {
foreach ($shp->getDBFHeader() as $c) {
$cell = trim((string) $record->DBFData[$c[0]]);
if (! strcmp($cell, '')) {
$cell = 'NULL';
}
$tempRow[] = $cell;
}
}
$rows[] = $tempRow;
}
}
if (count($rows) === 0) {
$error = true;
$message = Message::error(
__('The imported file does not contain any data!')
);
return;
}
// Column names for spatial column and the rest of the columns,
// if they are available
$col_names[] = 'SPATIAL';
for ($n = 0; $n < $num_data_cols; $n++) {
$col_names[] = $shp->getDBFHeader()[$n][0];
}
// Set table name based on the number of tables
if (strlen((string) $db) > 0) {
$result = $dbi->fetchResult('SHOW TABLES');
$table_name = 'TABLE ' . (count($result) + 1);
} else {
$table_name = 'TBL_NAME';
}
$tables = [
[
$table_name,
$col_names,
$rows,
],
];
// Use data from shape file to chose best-fit MySQL types for each column
$analyses = [];
$analyses[] = $this->import->analyzeTable($tables[0]);
$table_no = 0;
$spatial_col = 0;
$analyses[$table_no][Import::TYPES][$spatial_col] = Import::GEOMETRY;
$analyses[$table_no][Import::FORMATTEDSQL][$spatial_col] = true;
// Set database name to the currently selected one, if applicable
if (strlen((string) $db) > 0) {
$db_name = $db;
$options = ['create_db' => false];
} else {
$db_name = 'SHP_DB';
$options = null;
}
// Created and execute necessary SQL statements from data
$null_param = null;
$this->import->buildSql($db_name, $tables, $analyses, $null_param, $options, $sql_data);
unset($tables, $analyses);
$finished = true;
$error = false;
// Commit any possible data in buffers
$this->import->runQuery('', '', $sql_data);
}
/**
* Returns specified number of bytes from the buffer.
* Buffer automatically fetches next chunk of data when the buffer
* falls short.
* Sets $eof when $GLOBALS['finished'] is set and the buffer falls short.
*
* @param int $length number of bytes
*
* @return string
*/
public static function readFromBuffer($length)
{
global $buffer, $eof, $importHandle;
$import = new Import();
if (strlen((string) $buffer) < $length) {
if ($GLOBALS['finished']) {
$eof = true;
} else {
$buffer .= $import->getNextChunk($importHandle);
}
}
$result = substr($buffer, 0, $length);
$buffer = substr($buffer, $length);
return $result;
}
}
|