Update website

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Guilhem Lavaux 2025-03-24 09:27:39 +01:00
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# Change Log
## [2.1] - 2017-05-15
* Documentation improvements.
## [2.0] - 2017-01-23
* Switched to PhpMyAdmin vendor namespace to follow PSR-4.
## [1.2] - 2017-01-07
* Coding style cleanup.
* PHP 7.2 support.
* Avoid installing tests and test data using composer.
## [1.1] - 2016-11-21
* Fixed adjusting of record bouding box
## [1.0] - 2016-11-21
* Documentation improvements
* Code cleanups
## [0.12] - 2016-11-17
* Fixed DBF search
* Improved test coverage
## [0.11] - 2016-11-16
* Code cleanups
* Fixed behavior without configured DBF header
## [0.11] - 2016-11-16
* Fixed saving Polygon/Polyline creation with multiple parts
* Fixed saving Multipont records
## [0.10] - 2016-09-05
* Improved error handling on loading
## [0.9] - 2016-08-04
* Code cleanups
## [0.8] - 2016-06-24
* Code cleanups
* Fixed loading of records with optional data
## [0.7] - 2016-06-24
* Properly fail on loading corrupted files
## [0.6] - 2016-06-24
* Fixed detection of end of file when loading
## [0.5] - 2016-06-24
* Added getShapeName method to ShapeFile
## [0.4] - 2016-06-24
* Make API work even without real file open
## [0.3] - 2016-06-24
* Better support for subclassing
## [0.2] - 2016-06-24
* Make the dbase extension optional dependency
## [0.1] - 2016-06-14
* Inital release based on bfShapeFiles

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GNU GENERAL PUBLIC LICENSE
Version 2, June 1991
Copyright (C) 1989, 1991 Free Software Foundation, Inc., <http://fsf.org/>
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
Everyone is permitted to copy and distribute verbatim copies
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# shapefile
ShapeFile library for PHP
[![Build Status](https://travis-ci.org/phpmyadmin/shapefile.svg?branch=master)](https://travis-ci.org/phpmyadmin/shapefile)
[![codecov.io](https://codecov.io/github/phpmyadmin/shapefile/coverage.svg?branch=master)](https://codecov.io/github/phpmyadmin/shapefile?branch=master)
[![Scrutinizer Code Quality](https://scrutinizer-ci.com/g/phpmyadmin/shapefile/badges/quality-score.png?b=master)](https://scrutinizer-ci.com/g/phpmyadmin/shapefile/?branch=master)
[![Packagist](https://img.shields.io/packagist/dt/phpmyadmin/shapefile.svg)](https://packagist.org/packages/phpmyadmin/shapefile)
## Features
Currently the 2D and 3D variants except MultiPatch of the ShapeFile format as
defined in https://www.esri.com/library/whitepapers/pdfs/shapefile.pdf. The
library currently supports reading and editing of ShapeFiles and the Associated
information (DBF file). There are a lot of things that can be improved in the
code, if you are interested in developing, helping with the documentation,
making translations or offering new ideas please contact us.
## Installation
Please use [Composer][1] to install:
```
composer require phpmyadmin/shapefile
```
To be able to read and write the associated DBF file, you need ``dbase``
extension:
```
pecl install dbase
echo "extension=dbase.so" > /etc/php5/conf.d/dbase.ini
```
## Documentation
The API documentation is available at
<https://develdocs.phpmyadmin.net/shapefile/>.
## Usage
To read shape file:
```php
$shp = new \PhpMyAdmin\ShapeFile\ShapeFile(0);
$shp->loadFromFile('path/file.*');
```
## History
This library is based on BytesFall ShapeFiles library written by Ovidio (ovidio
AT users.sourceforge.net). The library has been embedded in phpMyAdmin for
years and slowly developed there. At one point people started to use our
version rather than the original library and that was the point we decided to
make it separate package.
[1]:https://getcomposer.org/

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comment:
layout: header, changes, diff
coverage: {}

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{
"name": "phpmyadmin/shapefile",
"description": "ESRI ShapeFile library for PHP",
"license": "GPL-2.0+",
"keywords": ["shapefile", "shp", "geo", "geospatial", "dbf", "ESRI", "shape"],
"homepage": "https://github.com/phpmyadmin/shapefile",
"authors": [
{
"name": "The phpMyAdmin Team",
"email": "developers@phpmyadmin.net",
"homepage": "https://www.phpmyadmin.net/team/"
}
],
"support": {
"issues": "https://github.com/phpmyadmin/shapefile/issues",
"source": "https://github.com/phpmyadmin/shapefile"
},
"require": {
"php": ">=5.4.0"
},
"suggest": {
"ext-dbase": "For dbf files parsing"
},
"require-dev": {
"phpunit/php-code-coverage": "*",
"phpunit/phpunit": "~4.8 || ~5.7"
},
"autoload": {
"psr-4": {
"PhpMyAdmin\\ShapeFile\\": "src"
}
}
}

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<?php
/**
* phpMyAdmin ShapeFile library
* <https://github.com/phpmyadmin/shapefile/>.
*
* Copyright 2006-2007 Ovidio <ovidio AT users.sourceforge.net>
* Copyright 2016 - 2017 Michal Čihař <michal@cihar.com>
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, you can download one from
* https://www.gnu.org/copyleft/gpl.html.
*/
namespace PhpMyAdmin\ShapeFile;
/**
* ShapeFile class.
*/
class ShapeFile
{
const MAGIC = 0x270a;
public $FileName;
private $SHPFile = null;
private $SHXFile = null;
private $DBFFile = null;
private $DBFHeader;
public $lastError = '';
public $boundingBox = array('xmin' => 0.0, 'ymin' => 0.0, 'xmax' => 0.0, 'ymax' => 0.0);
private $fileLength = 0;
public $shapeType = 0;
public $records = array();
/**
* Checks whether dbase manipuations are supported.
*
* @return bool
*/
public static function supports_dbase()
{
return extension_loaded('dbase');
}
/**
* @param int $shapeType File shape type, should be same as all records
* @param array $boundingBox File bounding box
* @param null|mixed $FileName File name
*/
public function __construct($shapeType, $boundingBox = array('xmin' => 0.0, 'ymin' => 0.0, 'xmax' => 0.0, 'ymax' => 0.0), $FileName = null)
{
$this->shapeType = $shapeType;
$this->boundingBox = $boundingBox;
$this->FileName = $FileName;
$this->fileLength = 50; // The value for file length is the total length of the file in 16-bit words (including the fifty 16-bit words that make up the header).
}
/**
* Loads shapefile and dbase (if supported).
*
* @param string $FileName File mask to load (eg. example.*)
*/
public function loadFromFile($FileName)
{
if (!empty($FileName)) {
$this->FileName = $FileName;
$result = $this->_openSHPFile();
} else {
/* We operate on buffer emulated by readSHP / eofSHP */
$result = true;
}
if ($result && ($this->_openDBFFile())) {
if (!$this->_loadHeaders()) {
$this->_closeSHPFile();
$this->_closeDBFFile();
return false;
}
if (!$this->_loadRecords()) {
$this->_closeSHPFile();
$this->_closeDBFFile();
return false;
}
$this->_closeSHPFile();
$this->_closeDBFFile();
return true;
}
return false;
}
/**
* Saves shapefile.
*
* @param string|null $FileName Name of file, otherwise existing is used
*/
public function saveToFile($FileName = null)
{
if (!is_null($FileName)) {
$this->FileName = $FileName;
}
if (($this->_openSHPFile(true)) && ($this->_openSHXFile(true)) && ($this->_createDBFFile())) {
$this->_saveHeaders();
$this->_saveRecords();
$this->_closeSHPFile();
$this->_closeSHXFile();
$this->_closeDBFFile();
} else {
return false;
}
}
/**
* Generates filename with given extension.
*
* @param string $extension Extension to use (including dot)
*
* @return string
*/
private function _getFilename($extension)
{
return str_replace('.*', $extension, $this->FileName);
}
/**
* Updates bounding box based on SHPData.
*
* @param string $type Type of box
* @param array $data ShapeRecord SHPData
*/
private function updateBBox($type, $data)
{
$min = $type . 'min';
$max = $type . 'max';
if (!isset($this->boundingBox[$min]) || $this->boundingBox[$min] == 0.0 || ($this->boundingBox[$min] > $data[$min])) {
$this->boundingBox[$min] = $data[$min];
}
if (!isset($this->boundingBox[$max]) || $this->boundingBox[$max] == 0.0 || ($this->boundingBox[$max] < $data[$max])) {
$this->boundingBox[$max] = $data[$max];
}
}
/**
* Adds record to shape file.
*
* @param ShapeRecord $record
*
* @return int Number of added record
*/
public function addRecord($record)
{
if ((isset($this->DBFHeader)) && (is_array($this->DBFHeader))) {
$record->updateDBFInfo($this->DBFHeader);
}
$this->fileLength += ($record->getContentLength() + 4);
$this->records[] = $record;
$this->records[count($this->records) - 1]->recordNumber = count($this->records);
$this->updateBBox('x', $record->SHPData);
$this->updateBBox('y', $record->SHPData);
if (in_array($this->shapeType, array(11, 13, 15, 18, 21, 23, 25, 28))) {
$this->updateBBox('m', $record->SHPData);
}
if (in_array($this->shapeType, array(11, 13, 15, 18))) {
$this->updateBBox('z', $record->SHPData);
}
return count($this->records) - 1;
}
/**
* Deletes record from shapefile.
*
* @param int $index
*/
public function deleteRecord($index)
{
if (isset($this->records[$index])) {
$this->fileLength -= ($this->records[$index]->getContentLength() + 4);
$count = count($this->records) - 1;
for ($i = $index; $i < $count; ++$i) {
$this->records[$i] = $this->records[$i + 1];
}
unset($this->records[count($this->records) - 1]);
$this->_deleteRecordFromDBF($index);
}
}
/**
* Returns array defining fields in DBF file.
*
* @return array see setDBFHeader for more information
*/
public function getDBFHeader()
{
return $this->DBFHeader;
}
/**
* Changes array defining fields in DBF file, used in dbase_create call.
*
* @param array $header An array of arrays, each array describing the
* format of one field of the database. Each
* field consists of a name, a character indicating
* the field type, and optionally, a length,
* a precision and a nullable flag.
*/
public function setDBFHeader($header)
{
$this->DBFHeader = $header;
$count = count($this->records);
for ($i = 0; $i < $count; ++$i) {
$this->records[$i]->updateDBFInfo($header);
}
}
/**
* Lookups value in the DBF file and returs index.
*
* @param string $field Field to match
* @param mixed $value Value to match
*
* @return int
*/
public function getIndexFromDBFData($field, $value)
{
foreach ($this->records as $index => $record) {
if (isset($record->DBFData[$field]) &&
(trim(strtoupper($record->DBFData[$field])) == strtoupper($value))
) {
return $index;
}
}
return -1;
}
/**
* Loads DBF metadata.
*/
private function _loadDBFHeader()
{
$DBFFile = fopen($this->_getFilename('.dbf'), 'r');
$result = array();
$i = 1;
$inHeader = true;
while ($inHeader) {
if (!feof($DBFFile)) {
$buff32 = fread($DBFFile, 32);
if ($i > 1) {
if (substr($buff32, 0, 1) == chr(13)) {
$inHeader = false;
} else {
$pos = strpos(substr($buff32, 0, 10), chr(0));
$pos = ($pos == 0 ? 10 : $pos);
$fieldName = substr($buff32, 0, $pos);
$fieldType = substr($buff32, 11, 1);
$fieldLen = ord(substr($buff32, 16, 1));
$fieldDec = ord(substr($buff32, 17, 1));
array_push($result, array($fieldName, $fieldType, $fieldLen, $fieldDec));
}
}
++$i;
} else {
$inHeader = false;
}
}
fclose($DBFFile);
return $result;
}
/**
* Deletes record from the DBF file.
*
* @param int $index
*/
private function _deleteRecordFromDBF($index)
{
if (@dbase_delete_record($this->DBFFile, $index)) {
dbase_pack($this->DBFFile);
}
}
/**
* Loads SHP file metadata.
*
* @return bool
*/
private function _loadHeaders()
{
if (Util::loadData('N', $this->readSHP(4)) != self::MAGIC) {
$this->setError('Not a SHP file (file code mismatch)');
return false;
}
/* Skip 20 unused bytes */
$this->readSHP(20);
$this->fileLength = Util::loadData('N', $this->readSHP(4));
/* We currently ignore version */
$this->readSHP(4);
$this->shapeType = Util::loadData('V', $this->readSHP(4));
$this->boundingBox = array();
$this->boundingBox['xmin'] = Util::loadData('d', $this->readSHP(8));
$this->boundingBox['ymin'] = Util::loadData('d', $this->readSHP(8));
$this->boundingBox['xmax'] = Util::loadData('d', $this->readSHP(8));
$this->boundingBox['ymax'] = Util::loadData('d', $this->readSHP(8));
$this->boundingBox['zmin'] = Util::loadData('d', $this->readSHP(8));
$this->boundingBox['zmax'] = Util::loadData('d', $this->readSHP(8));
$this->boundingBox['mmin'] = Util::loadData('d', $this->readSHP(8));
$this->boundingBox['mmax'] = Util::loadData('d', $this->readSHP(8));
if (self::supports_dbase()) {
$this->DBFHeader = $this->_loadDBFHeader();
}
return true;
}
/**
* Saves bounding box record, possibly using 0 instead of not set values.
*
* @param file $file File object
* @param string $type Bounding box dimension (eg. xmax, mmin...)
*/
private function _saveBBoxRecord($file, $type)
{
fwrite($file, Util::packDouble(
isset($this->boundingBox[$type]) ? $this->boundingBox[$type] : 0)
);
}
/**
* Saves bounding box to a file.
*
* @param file $file File object
*/
private function _saveBBox($file)
{
$this->_saveBBoxRecord($file, 'xmin');
$this->_saveBBoxRecord($file, 'ymin');
$this->_saveBBoxRecord($file, 'xmax');
$this->_saveBBoxRecord($file, 'ymax');
$this->_saveBBoxRecord($file, 'zmin');
$this->_saveBBoxRecord($file, 'zmax');
$this->_saveBBoxRecord($file, 'mmin');
$this->_saveBBoxRecord($file, 'mmax');
}
/**
* Saves SHP and SHX file metadata.
*/
private function _saveHeaders()
{
fwrite($this->SHPFile, pack('NNNNNN', self::MAGIC, 0, 0, 0, 0, 0));
fwrite($this->SHPFile, pack('N', $this->fileLength));
fwrite($this->SHPFile, pack('V', 1000));
fwrite($this->SHPFile, pack('V', $this->shapeType));
$this->_saveBBox($this->SHPFile);
fwrite($this->SHXFile, pack('NNNNNN', self::MAGIC, 0, 0, 0, 0, 0));
fwrite($this->SHXFile, pack('N', 50 + 4 * count($this->records)));
fwrite($this->SHXFile, pack('V', 1000));
fwrite($this->SHXFile, pack('V', $this->shapeType));
$this->_saveBBox($this->SHXFile);
}
/**
* Loads records from SHP file (and DBF).
*
* @return bool
*/
private function _loadRecords()
{
/* Need to start at offset 100 */
while (!$this->eofSHP()) {
$record = new ShapeRecord(-1);
$record->loadFromFile($this, $this->SHPFile, $this->DBFFile);
if ($record->lastError != '') {
$this->setError($record->lastError);
return false;
}
if (($record->shapeType === false || $record->shapeType === '') && $this->eofSHP()) {
break;
}
$this->records[] = $record;
}
return true;
}
/**
* Saves records to SHP and SHX files.
*/
private function _saveRecords()
{
$offset = 50;
if (is_array($this->records) && (count($this->records) > 0)) {
foreach ($this->records as $index => $record) {
//Save the record to the .shp file
$record->saveToFile($this->SHPFile, $this->DBFFile, $index + 1);
//Save the record to the .shx file
fwrite($this->SHXFile, pack('N', $offset));
fwrite($this->SHXFile, pack('N', $record->getContentLength()));
$offset += (4 + $record->getContentLength());
}
}
}
/**
* Generic interface to open files.
*
* @param bool $toWrite Whether file should be opened for writing
* @param string $extension File extension
* @param string $name Verbose file name to report errors
*
* @return file|false File handle
*/
private function _openFile($toWrite, $extension, $name)
{
$shp_name = $this->_getFilename($extension);
$result = @fopen($shp_name, ($toWrite ? 'wb+' : 'rb'));
if (!$result) {
$this->setError(sprintf('It wasn\'t possible to open the %s file "%s"', $name, $shp_name));
return false;
}
return $result;
}
/**
* Opens SHP file.
*
* @param bool $toWrite Whether file should be opened for writing
*
* @return bool
*/
private function _openSHPFile($toWrite = false)
{
$this->SHPFile = $this->_openFile($toWrite, '.shp', 'Shape');
if (!$this->SHPFile) {
return false;
}
return true;
}
/**
* Closes SHP file.
*/
private function _closeSHPFile()
{
if ($this->SHPFile) {
fclose($this->SHPFile);
$this->SHPFile = null;
}
}
/**
* Opens SHX file.
*
* @param bool $toWrite Whether file should be opened for writing
*
* @return bool
*/
private function _openSHXFile($toWrite = false)
{
$this->SHXFile = $this->_openFile($toWrite, '.shx', 'Index');
if (!$this->SHXFile) {
return false;
}
return true;
}
/**
* Closes SHX file.
*/
private function _closeSHXFile()
{
if ($this->SHXFile) {
fclose($this->SHXFile);
$this->SHXFile = null;
}
}
/**
* Creates DBF file.
*
* @return bool
*/
private function _createDBFFile()
{
if (!self::supports_dbase() || !is_array($this->DBFHeader) || count($this->DBFHeader) == 0) {
$this->DBFFile = null;
return true;
}
$dbf_name = $this->_getFilename('.dbf');
/* Unlink existing file */
if (file_exists($dbf_name)) {
unlink($dbf_name);
}
/* Create new file */
$this->DBFFile = @dbase_create($dbf_name, $this->DBFHeader);
if ($this->DBFFile === false) {
$this->setError(sprintf('It wasn\'t possible to create the DBase file "%s"', $dbf_name));
return false;
}
return true;
}
/**
* Loads DBF file if supported.
*
* @return bool
*/
private function _openDBFFile()
{
if (!self::supports_dbase()) {
$this->DBFFile = null;
return true;
}
$dbf_name = $this->_getFilename('.dbf');
if (is_readable($dbf_name)) {
$this->DBFFile = @dbase_open($dbf_name, 0);
if (!$this->DBFFile) {
$this->setError(sprintf('It wasn\'t possible to open the DBase file "%s"', $dbf_name));
return false;
}
} else {
$this->setError(sprintf('It wasn\'t possible to find the DBase file "%s"', $dbf_name));
return false;
}
return true;
}
/**
* Closes DBF file.
*/
private function _closeDBFFile()
{
if ($this->DBFFile) {
dbase_close($this->DBFFile);
$this->DBFFile = null;
}
}
/**
* Sets error message.
*
* @param string $error
*/
public function setError($error)
{
$this->lastError = $error;
}
/**
* Reads given number of bytes from SHP file.
*
* @param int $bytes
*
* @return string
*/
public function readSHP($bytes)
{
return fread($this->SHPFile, $bytes);
}
/**
* Checks whether file is at EOF.
*
* @return bool
*/
public function eofSHP()
{
return feof($this->SHPFile);
}
/**
* Returns shape name.
*
* @return string
*/
public function getShapeName()
{
return Util::nameShape($this->shapeType);
}
/**
* Check whether file contains measure data.
*
* For some reason this is distinguished by zero bounding box in the
* specification.
*
* @return bool
*/
public function hasMeasure()
{
return $this->boundingBox['mmin'] != 0 || $this->boundingBox['mmax'] != 0;
}
}

View file

@ -0,0 +1,849 @@
<?php
/**
* phpMyAdmin ShapeFile library
* <https://github.com/phpmyadmin/shapefile/>.
*
* Copyright 2006-2007 Ovidio <ovidio AT users.sourceforge.net>
* Copyright 2016 - 2017 Michal Čihař <michal@cihar.com>
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, you can download one from
* https://www.gnu.org/copyleft/gpl.html.
*/
namespace PhpMyAdmin\ShapeFile;
/**
* ShapeFile record class.
*/
class ShapeRecord
{
private $SHPFile = null;
private $DBFFile = null;
private $ShapeFile = null;
private $size = 0;
private $read = 0;
public $recordNumber = null;
public $shapeType = null;
public $lastError = '';
public $SHPData = array();
public $DBFData = array();
/**
* @param int $shapeType
*/
public function __construct($shapeType)
{
$this->shapeType = $shapeType;
}
/**
* Loads record from files.
*
* @param ShapeFile $ShapeFile
* @param file &$SHPFile Opened SHP file
* @param file &$DBFFile Opened DBF file
*/
public function loadFromFile(&$ShapeFile, &$SHPFile, &$DBFFile)
{
$this->ShapeFile = $ShapeFile;
$this->SHPFile = $SHPFile;
$this->DBFFile = $DBFFile;
$this->_loadHeaders();
/* No header read */
if ($this->read == 0) {
return;
}
switch ($this->shapeType) {
case 0:
$this->_loadNullRecord();
break;
case 1:
$this->_loadPointRecord();
break;
case 21:
$this->_loadPointMRecord();
break;
case 11:
$this->_loadPointZRecord();
break;
case 3:
$this->_loadPolyLineRecord();
break;
case 23:
$this->_loadPolyLineMRecord();
break;
case 13:
$this->_loadPolyLineZRecord();
break;
case 5:
$this->_loadPolygonRecord();
break;
case 25:
$this->_loadPolygonMRecord();
break;
case 15:
$this->_loadPolygonZRecord();
break;
case 8:
$this->_loadMultiPointRecord();
break;
case 28:
$this->_loadMultiPointMRecord();
break;
case 18:
$this->_loadMultiPointZRecord();
break;
default:
$this->setError(sprintf('The Shape Type "%s" is not supported.', $this->shapeType));
break;
}
/* We need to skip rest of the record */
while ($this->read < $this->size) {
$this->_loadData('V', 4);
}
/* Check if we didn't read too much */
if ($this->read != $this->size) {
$this->setError(sprintf('Failed to parse record, read=%d, size=%d', $this->read, $this->size));
}
if (ShapeFile::supports_dbase() && isset($this->DBFFile)) {
$this->_loadDBFData();
}
}
/**
* Saves record to files.
*
* @param file &$SHPFile Opened SHP file
* @param file &$DBFFile Opened DBF file
* @param int $recordNumber Record number
*/
public function saveToFile(&$SHPFile, &$DBFFile, $recordNumber)
{
$this->SHPFile = $SHPFile;
$this->DBFFile = $DBFFile;
$this->recordNumber = $recordNumber;
$this->_saveHeaders();
switch ($this->shapeType) {
case 0:
// Nothing to save
break;
case 1:
$this->_savePointRecord();
break;
case 21:
$this->_savePointMRecord();
break;
case 11:
$this->_savePointZRecord();
break;
case 3:
$this->_savePolyLineRecord();
break;
case 23:
$this->_savePolyLineMRecord();
break;
case 13:
$this->_savePolyLineZRecord();
break;
case 5:
$this->_savePolygonRecord();
break;
case 25:
$this->_savePolygonMRecord();
break;
case 15:
$this->_savePolygonZRecord();
break;
case 8:
$this->_saveMultiPointRecord();
break;
case 28:
$this->_saveMultiPointMRecord();
break;
case 18:
$this->_saveMultiPointZRecord();
break;
default:
$this->setError(sprintf('The Shape Type "%s" is not supported.', $this->shapeType));
break;
}
if (ShapeFile::supports_dbase() && !is_null($this->DBFFile)) {
$this->_saveDBFData();
}
}
/**
* Updates DBF data to match header.
*
* @param array $header DBF structure header
*/
public function updateDBFInfo($header)
{
$tmp = $this->DBFData;
unset($this->DBFData);
$this->DBFData = array();
foreach ($header as $value) {
$this->DBFData[$value[0]] = (isset($tmp[$value[0]])) ? $tmp[$value[0]] : '';
}
}
/**
* Reads data.
*
* @param string $type type for unpack()
* @param int $count number of bytes
*
* @return mixed
*/
private function _loadData($type, $count)
{
$data = $this->ShapeFile->readSHP($count);
if ($data === false) {
return false;
}
$this->read += strlen($data);
return Util::loadData($type, $data);
}
/**
* Loads metadata header from a file.
*/
private function _loadHeaders()
{
$this->shapeType = false;
$this->recordNumber = $this->_loadData('N', 4);
if ($this->recordNumber === false) {
return;
}
// We read the length of the record
$this->size = $this->_loadData('N', 4);
if ($this->size === false) {
return;
}
$this->size = $this->size * 2 + 8;
$this->shapeType = $this->_loadData('V', 4);
}
/**
* Saves metadata header to a file.
*/
private function _saveHeaders()
{
fwrite($this->SHPFile, pack('N', $this->recordNumber));
fwrite($this->SHPFile, pack('N', $this->getContentLength()));
fwrite($this->SHPFile, pack('V', $this->shapeType));
}
private function _loadPoint()
{
$data = array();
$data['x'] = $this->_loadData('d', 8);
$data['y'] = $this->_loadData('d', 8);
return $data;
}
private function _loadPointM()
{
$data = $this->_loadPoint();
$data['m'] = $this->_loadData('d', 8);
return $data;
}
private function _loadPointZ()
{
$data = $this->_loadPoint();
$data['z'] = $this->_loadData('d', 8);
$data['m'] = $this->_loadData('d', 8);
return $data;
}
private function _savePoint($data)
{
fwrite($this->SHPFile, Util::packDouble($data['x']));
fwrite($this->SHPFile, Util::packDouble($data['y']));
}
private function _savePointM($data)
{
fwrite($this->SHPFile, Util::packDouble($data['x']));
fwrite($this->SHPFile, Util::packDouble($data['y']));
fwrite($this->SHPFile, Util::packDouble($data['m']));
}
private function _savePointZ($data)
{
fwrite($this->SHPFile, Util::packDouble($data['x']));
fwrite($this->SHPFile, Util::packDouble($data['y']));
fwrite($this->SHPFile, Util::packDouble($data['z']));
fwrite($this->SHPFile, Util::packDouble($data['m']));
}
private function _loadNullRecord()
{
$this->SHPData = array();
}
private function _loadPointRecord()
{
$this->SHPData = $this->_loadPoint();
}
private function _loadPointMRecord()
{
$this->SHPData = $this->_loadPointM();
}
private function _loadPointZRecord()
{
$this->SHPData = $this->_loadPointZ();
}
private function _savePointRecord()
{
$this->_savePoint($this->SHPData);
}
private function _savePointMRecord()
{
$this->_savePointM($this->SHPData);
}
private function _savePointZRecord()
{
$this->_savePointZ($this->SHPData);
}
private function _loadBBox()
{
$this->SHPData['xmin'] = $this->_loadData('d', 8);
$this->SHPData['ymin'] = $this->_loadData('d', 8);
$this->SHPData['xmax'] = $this->_loadData('d', 8);
$this->SHPData['ymax'] = $this->_loadData('d', 8);
}
private function _loadMultiPointRecord()
{
$this->SHPData = array();
$this->_loadBBox();
$this->SHPData['numpoints'] = $this->_loadData('V', 4);
for ($i = 0; $i < $this->SHPData['numpoints']; ++$i) {
$this->SHPData['points'][] = $this->_loadPoint();
}
}
/**
* @param string $type
*/
private function _loadMultiPointMZRecord($type)
{
/* The m dimension is optional, depends on bounding box data */
if ($type == 'm' && !$this->ShapeFile->hasMeasure()) {
return;
}
$this->SHPData[$type . 'min'] = $this->_loadData('d', 8);
$this->SHPData[$type . 'max'] = $this->_loadData('d', 8);
for ($i = 0; $i < $this->SHPData['numpoints']; ++$i) {
$this->SHPData['points'][$i][$type] = $this->_loadData('d', 8);
}
}
private function _loadMultiPointMRecord()
{
$this->_loadMultiPointRecord();
$this->_loadMultiPointMZRecord('m');
}
private function _loadMultiPointZRecord()
{
$this->_loadMultiPointRecord();
$this->_loadMultiPointMZRecord('z');
$this->_loadMultiPointMZRecord('m');
}
private function _saveMultiPointRecord()
{
fwrite($this->SHPFile, pack('dddd', $this->SHPData['xmin'], $this->SHPData['ymin'], $this->SHPData['xmax'], $this->SHPData['ymax']));
fwrite($this->SHPFile, pack('V', $this->SHPData['numpoints']));
for ($i = 0; $i < $this->SHPData['numpoints']; ++$i) {
$this->_savePoint($this->SHPData['points'][$i]);
}
}
/**
* @param string $type
*/
private function _saveMultiPointMZRecord($type)
{
fwrite($this->SHPFile, pack('dd', $this->SHPData[$type . 'min'], $this->SHPData[$type . 'max']));
for ($i = 0; $i < $this->SHPData['numpoints']; ++$i) {
fwrite($this->SHPFile, Util::packDouble($this->SHPData['points'][$i][$type]));
}
}
private function _saveMultiPointMRecord()
{
$this->_saveMultiPointRecord();
$this->_saveMultiPointMZRecord('m');
}
private function _saveMultiPointZRecord()
{
$this->_saveMultiPointRecord();
$this->_saveMultiPointMZRecord('z');
$this->_saveMultiPointMZRecord('m');
}
private function _loadPolyLineRecord()
{
$this->SHPData = array();
$this->_loadBBox();
$this->SHPData['numparts'] = $this->_loadData('V', 4);
$this->SHPData['numpoints'] = $this->_loadData('V', 4);
$numparts = $this->SHPData['numparts'];
$numpoints = $this->SHPData['numpoints'];
for ($i = 0; $i < $numparts; ++$i) {
$this->SHPData['parts'][$i] = $this->_loadData('V', 4);
}
$part = 0;
for ($i = 0; $i < $numpoints; ++$i) {
if ($part + 1 < $numparts && $this->SHPData['parts'][$part + 1] == $i) {
++$part;
}
if (!isset($this->SHPData['parts'][$part]['points']) || !is_array($this->SHPData['parts'][$part]['points'])) {
$this->SHPData['parts'][$part] = array('points' => array());
}
$this->SHPData['parts'][$part]['points'][] = $this->_loadPoint();
}
}
/**
* @param string $type
*/
private function _loadPolyLineMZRecord($type)
{
/* The m dimension is optional, depends on bounding box data */
if ($type == 'm' && !$this->ShapeFile->hasMeasure()) {
return;
}
$this->SHPData[$type . 'min'] = $this->_loadData('d', 8);
$this->SHPData[$type . 'max'] = $this->_loadData('d', 8);
$numparts = $this->SHPData['numparts'];
$numpoints = $this->SHPData['numpoints'];
$part = 0;
for ($i = 0; $i < $numpoints; ++$i) {
if ($part + 1 < $numparts && $this->SHPData['parts'][$part + 1] == $i) {
++$part;
}
$this->SHPData['parts'][$part]['points'][$i][$type] = $this->_loadData('d', 8);
}
}
private function _loadPolyLineMRecord()
{
$this->_loadPolyLineRecord();
$this->_loadPolyLineMZRecord('m');
}
private function _loadPolyLineZRecord()
{
$this->_loadPolyLineRecord();
$this->_loadPolyLineMZRecord('z');
$this->_loadPolyLineMZRecord('m');
}
private function _savePolyLineRecord()
{
fwrite($this->SHPFile, pack('dddd', $this->SHPData['xmin'], $this->SHPData['ymin'], $this->SHPData['xmax'], $this->SHPData['ymax']));
fwrite($this->SHPFile, pack('VV', $this->SHPData['numparts'], $this->SHPData['numpoints']));
$part_index = 0;
for ($i = 0; $i < $this->SHPData['numparts']; ++$i) {
fwrite($this->SHPFile, pack('V', $part_index));
$part_index += count($this->SHPData['parts'][$i]['points']);
}
foreach ($this->SHPData['parts'] as $partData) {
foreach ($partData['points'] as $pointData) {
$this->_savePoint($pointData);
}
}
}
/**
* @param string $type
*/
private function _savePolyLineMZRecord($type)
{
fwrite($this->SHPFile, pack('dd', $this->SHPData[$type . 'min'], $this->SHPData[$type . 'max']));
foreach ($this->SHPData['parts'] as $partData) {
foreach ($partData['points'] as $pointData) {
fwrite($this->SHPFile, Util::packDouble($pointData[$type]));
}
}
}
private function _savePolyLineMRecord()
{
$this->_savePolyLineRecord();
$this->_savePolyLineMZRecord('m');
}
private function _savePolyLineZRecord()
{
$this->_savePolyLineRecord();
$this->_savePolyLineMZRecord('z');
$this->_savePolyLineMZRecord('m');
}
private function _loadPolygonRecord()
{
$this->_loadPolyLineRecord();
}
private function _loadPolygonMRecord()
{
$this->_loadPolyLineMRecord();
}
private function _loadPolygonZRecord()
{
$this->_loadPolyLineZRecord();
}
private function _savePolygonRecord()
{
$this->_savePolyLineRecord();
}
private function _savePolygonMRecord()
{
$this->_savePolyLineMRecord();
}
private function _savePolygonZRecord()
{
$this->_savePolyLineZRecord();
}
private function _adjustBBox($point)
{
// Adjusts bounding box based on point
$directions = array('x', 'y', 'z', 'm');
foreach ($directions as $direction) {
if (!isset($point[$direction])) {
continue;
}
$min = $direction . 'min';
$max = $direction . 'max';
if (!isset($this->SHPData[$min]) || ($this->SHPData[$min] > $point[$direction])) {
$this->SHPData[$min] = $point[$direction];
}
if (!isset($this->SHPData[$max]) || ($this->SHPData[$max] < $point[$direction])) {
$this->SHPData[$max] = $point[$direction];
}
}
}
/**
* Sets dimension to 0 if not set.
*
* @param array $point Point to check
* @param string $dimension Dimension to check
*
* @return array
*/
private function _fixPoint($point, $dimension)
{
if (!isset($point[$dimension])) {
$point[$dimension] = 0.0; // no_value
}
return $point;
}
/**
* Adjust point and bounding box when adding point.
*
* @param array $point Point data
*
* @return array Fixed point data
*/
private function _adjustPoint($point)
{
$type = $this->shapeType / 10;
if ($type >= 2) {
$point = $this->_fixPoint($point, 'm');
} elseif ($type >= 1) {
$point = $this->_fixPoint($point, 'z');
$point = $this->_fixPoint($point, 'm');
}
return $point;
}
/**
* Adds point to a record.
*
* @param array $point Point data
* @param int $partIndex Part index
*/
public function addPoint($point, $partIndex = 0)
{
$point = $this->_adjustPoint($point);
switch ($this->shapeType) {
case 0:
//Don't add anything
return;
case 1:
case 11:
case 21:
//Substitutes the value of the current point
$this->SHPData = $point;
break;
case 3:
case 5:
case 13:
case 15:
case 23:
case 25:
//Adds a new point to the selected part
$this->SHPData['parts'][$partIndex]['points'][] = $point;
$this->SHPData['numparts'] = count($this->SHPData['parts']);
$this->SHPData['numpoints'] = 1 + (isset($this->SHPData['numpoints']) ? $this->SHPData['numpoints'] : 0);
break;
case 8:
case 18:
case 28:
//Adds a new point
$this->SHPData['points'][] = $point;
$this->SHPData['numpoints'] = 1 + (isset($this->SHPData['numpoints']) ? $this->SHPData['numpoints'] : 0);
break;
default:
$this->setError(sprintf('The Shape Type "%s" is not supported.', $this->shapeType));
return;
}
$this->_adjustBBox($point);
}
/**
* Deletes point from a record.
*
* @param int $pointIndex Point index
* @param int $partIndex Part index
*/
public function deletePoint($pointIndex = 0, $partIndex = 0)
{
switch ($this->shapeType) {
case 0:
//Don't delete anything
break;
case 1:
case 11:
case 21:
//Sets the value of the point to zero
$this->SHPData['x'] = 0.0;
$this->SHPData['y'] = 0.0;
if (in_array($this->shapeType, array(11, 21))) {
$this->SHPData['m'] = 0.0;
}
if (in_array($this->shapeType, array(11))) {
$this->SHPData['z'] = 0.0;
}
break;
case 3:
case 5:
case 13:
case 15:
case 23:
case 25:
//Deletes the point from the selected part, if exists
if (isset($this->SHPData['parts'][$partIndex]) && isset($this->SHPData['parts'][$partIndex]['points'][$pointIndex])) {
$count = count($this->SHPData['parts'][$partIndex]['points']) - 1;
for ($i = $pointIndex; $i < $count; ++$i) {
$this->SHPData['parts'][$partIndex]['points'][$i] = $this->SHPData['parts'][$partIndex]['points'][$i + 1];
}
unset($this->SHPData['parts'][$partIndex]['points'][count($this->SHPData['parts'][$partIndex]['points']) - 1]);
$this->SHPData['numparts'] = count($this->SHPData['parts']);
--$this->SHPData['numpoints'];
}
break;
case 8:
case 18:
case 28:
//Deletes the point, if exists
if (isset($this->SHPData['points'][$pointIndex])) {
$count = count($this->SHPData['points']) - 1;
for ($i = $pointIndex; $i < $count; ++$i) {
$this->SHPData['points'][$i] = $this->SHPData['points'][$i + 1];
}
unset($this->SHPData['points'][count($this->SHPData['points']) - 1]);
--$this->SHPData['numpoints'];
}
break;
default:
$this->setError(sprintf('The Shape Type "%s" is not supported.', $this->shapeType));
break;
}
}
/**
* Returns length of content.
*
* @return int
*/
public function getContentLength()
{
// The content length for a record is the length of the record contents section measured in 16-bit words.
// one coordinate makes 4 16-bit words (64 bit double)
switch ($this->shapeType) {
case 0:
$result = 0;
break;
case 1:
$result = 10;
break;
case 21:
$result = 10 + 4;
break;
case 11:
$result = 10 + 8;
break;
case 3:
case 5:
$count = count($this->SHPData['parts']);
$result = 22 + 2 * $count;
for ($i = 0; $i < $count; ++$i) {
$result += 8 * count($this->SHPData['parts'][$i]['points']);
}
break;
case 23:
case 25:
$count = count($this->SHPData['parts']);
$result = 22 + (2 * 4) + 2 * $count;
for ($i = 0; $i < $count; ++$i) {
$result += (8 + 4) * count($this->SHPData['parts'][$i]['points']);
}
break;
case 13:
case 15:
$count = count($this->SHPData['parts']);
$result = 22 + (4 * 4) + 2 * $count;
for ($i = 0; $i < $count; ++$i) {
$result += (8 + 8) * count($this->SHPData['parts'][$i]['points']);
}
break;
case 8:
$result = 20 + 8 * count($this->SHPData['points']);
break;
case 28:
$result = 20 + (2 * 4) + (8 + 4) * count($this->SHPData['points']);
break;
case 18:
$result = 20 + (4 * 4) + (8 + 8) * count($this->SHPData['points']);
break;
default:
$result = false;
$this->setError(sprintf('The Shape Type "%s" is not supported.', $this->shapeType));
break;
}
return $result;
}
private function _loadDBFData()
{
$this->DBFData = @dbase_get_record_with_names($this->DBFFile, $this->recordNumber);
unset($this->DBFData['deleted']);
}
private function _saveDBFData()
{
if (count($this->DBFData) == 0) {
return;
}
unset($this->DBFData['deleted']);
if ($this->recordNumber <= dbase_numrecords($this->DBFFile)) {
if (!dbase_replace_record($this->DBFFile, array_values($this->DBFData), $this->recordNumber)) {
$this->setError('I wasn\'t possible to update the information in the DBF file.');
}
} else {
if (!dbase_add_record($this->DBFFile, array_values($this->DBFData))) {
$this->setError('I wasn\'t possible to add the information to the DBF file.');
}
}
}
/**
* Sets error message.
*
* @param string $error
*/
public function setError($error)
{
$this->lastError = $error;
}
/**
* Returns shape name.
*
* @return string
*/
public function getShapeName()
{
return Util::nameShape($this->shapeType);
}
}

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@ -0,0 +1,118 @@
<?php
/**
* phpMyAdmin ShapeFile library
* <https://github.com/phpmyadmin/shapefile/>.
*
* Copyright 2006-2007 Ovidio <ovidio AT users.sourceforge.net>
* Copyright 2016 - 2017 Michal Čihař <michal@cihar.com>
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, you can download one from
* https://www.gnu.org/copyleft/gpl.html.
*/
namespace PhpMyAdmin\ShapeFile;
class Util
{
private static $little_endian = null;
private static $shape_names = array(
0 => 'Null Shape',
1 => 'Point',
3 => 'PolyLine',
5 => 'Polygon',
8 => 'MultiPoint',
11 => 'PointZ',
13 => 'PolyLineZ',
15 => 'PolygonZ',
18 => 'MultiPointZ',
21 => 'PointM',
23 => 'PolyLineM',
25 => 'PolygonM',
28 => 'MultiPointM',
31 => 'MultiPatch',
);
/**
* Reads data.
*
* @param string $type type for unpack()
* @param string $data Data to process
*
* @return mixed
*/
public static function loadData($type, $data)
{
if ($data === false || strlen($data) == 0) {
return false;
}
$tmp = unpack($type, $data);
return current($tmp);
}
/**
* Changes endianity.
*
* @param string $binValue Binary value
*
* @return string
*/
public static function swap($binValue)
{
$result = $binValue[strlen($binValue) - 1];
for ($i = strlen($binValue) - 2; $i >= 0; --$i) {
$result .= $binValue[$i];
}
return $result;
}
/**
* Encodes double value to correct endianity.
*
* @param float $value Value to pack
*
* @return string
*/
public static function packDouble($value)
{
$bin = pack('d', (float) $value);
if (is_null(self::$little_endian)) {
self::$little_endian = (pack('L', 1) == pack('V', 1));
}
if (self::$little_endian) {
return $bin;
}
return self::swap($bin);
}
/**
* Returns shape name.
*
* @param int $type
*
* @return string
*/
public static function nameShape($type)
{
if (isset(self::$shape_names[$type])) {
return self::$shape_names[$type];
}
return sprintf('Shape %d', $type);
}
}