This repository has been archived by the owner on Jun 25, 2024. It is now read-only.
-
Notifications
You must be signed in to change notification settings - Fork 164
/
tileserver.php
executable file
·1307 lines (1205 loc) · 41.8 KB
/
tileserver.php
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
953
954
955
956
957
958
959
960
961
962
963
964
965
966
967
968
969
970
971
972
973
974
975
976
977
978
979
980
981
982
983
984
985
986
987
988
989
990
991
992
993
994
995
996
997
998
999
1000
<?php
/*
* TileServer-PHP project
* ======================
* https://github.com/maptiler/tileserver-php/
* Copyright (C) 2020 - MapTiler AG
*/
global $config;
$config['serverTitle'] = 'Maps hosted with TileServer-php v2.0';
$config['availableFormats'] = ['png', 'jpg', 'jpeg', 'gif', 'webp', 'pbf', 'hybrid'];
$config['dataRoot'] = '';
//$config['template'] = 'template.php';
//$config['baseUrls'] = ['t0.server.com', 't1.server.com'];
Router::serve([
'/' => 'Server:getHtml',
'/maps' => 'Server:getInfo',
'/html' => 'Server:getHtml',
'/:alpha/:number/:number/:number.grid.json' => 'Json:getUTFGrid',
'/:alpha.json' => 'Json:getJson',
'/:alpha.jsonp' => 'Json:getJsonp',
'/wmts' => 'Wmts:get',
'/wmts/1.0.0/WMTSCapabilities.xml' => 'Wmts:get',
'/wmts/:alpha/:number/:number/:alpha' => 'Wmts:getTile',
'/wmts/:alpha/:alpha/:number/:number/:alpha' => 'Wmts:getTile',
'/wmts/:alpha/:alpha/:alpha/:number/:number/:alpha' => 'Wmts:getTile',
'/:alpha/:number/:number/:alpha' => 'Wmts:getTile',
'/tms' => 'Tms:getCapabilities',
'/tms/:alpha' => 'Tms:getLayerCapabilities',
]);
/**
* Server base
*/
class Server {
/**
* Configuration of TileServer [baseUrls, serverTitle]
* @var array
*/
public $config;
/**
* Datasets stored in file structure
* @var array
*/
public $fileLayer = [];
/**
* Datasets stored in database
* @var array
*/
public $dbLayer = [];
/**
* PDO database connection
* @var object
*/
public $db;
/**
* Set config
*/
public function __construct() {
$this->config = $GLOBALS['config'];
if($this->config['dataRoot'] != ''
&& substr($this->config['dataRoot'], -1) != '/' ){
$this->config['dataRoot'] .= '/';
}
//Get config from enviroment
$envServerTitle = getenv('serverTitle');
if($envServerTitle !== false){
$this->config['serverTitle'] = $envServerTitle;
}
$envBaseUrls = getenv('baseUrls');
if($envBaseUrls !== false){
$this->config['baseUrls'] = is_array($envBaseUrls) ?
$envBaseUrls : explode(',', $envBaseUrls);
}
$envTemplate = getenv('template');
if($envBaseUrls !== false){
$this->config['template'] = $envTemplate;
}
}
/**
* Looks for datasets
*/
public function setDatasets() {
$mjs = glob('*/metadata.json');
$mbts = glob($this->config['dataRoot'] . '*.mbtiles');
if ($mjs) {
foreach (array_filter($mjs, 'is_readable') as $mj) {
$layer = $this->metadataFromMetadataJson($mj);
array_push($this->fileLayer, $layer);
}
}
if ($mbts) {
foreach (array_filter($mbts, 'is_readable') as $mbt) {
$this->dbLayer[] = $this->metadataFromMbtiles($mbt);
}
}
}
/**
* Processing params from router <server>/<layer>/<z>/<x>/<y>.ext
* @param array $params
*/
public function setParams($params) {
if (isset($params[1])) {
$this->layer = $params[1];
}
$params = array_reverse($params);
if (isset($params[2])) {
$this->z = $params[2];
$this->x = $params[1];
$file = explode('.', $params[0]);
$this->y = $file[0];
$this->ext = isset($file[1]) ? $file[1] : null;
}
}
/**
* Get variable don't independent on sensitivity
* @param string $key
* @return boolean
*/
public function getGlobal($isKey) {
$get = $_GET;
foreach ($get as $key => $value) {
if (strtolower($isKey) == strtolower($key)) {
return $value;
}
}
return false;
}
/**
* Testing if is a database layer
* @param string $layer
* @return boolean
*/
public function isDBLayer($layer) {
if (is_file($this->config['dataRoot'] . $layer . '.mbtiles')) {
return true;
} else {
return false;
}
}
/**
* Testing if is a file layer
* @param string $layer
* @return boolean
*/
public function isFileLayer($layer) {
if (is_dir($layer)) {
return true;
} else {
return false;
}
}
/**
* Get metadata from metadataJson
* @param string $jsonFileName
* @return array
*/
public function metadataFromMetadataJson($jsonFileName) {
$metadata = json_decode(file_get_contents($jsonFileName), true);
$metadata['basename'] = str_replace('/metadata.json', '', $jsonFileName);
return $this->metadataValidation($metadata);
}
/**
* Loads metadata from MBtiles
* @param string $mbt
* @return object
*/
public function metadataFromMbtiles($mbt) {
$metadata = [];
$this->DBconnect($mbt);
$result = $this->db->query('select * from metadata');
$resultdata = $result->fetchAll();
foreach ($resultdata as $r) {
$value = preg_replace('/(\\n)+/', '', $r['value']);
$metadata[$r['name']] = addslashes($value);
}
if (!array_key_exists('minzoom', $metadata)
|| !array_key_exists('maxzoom', $metadata)
) {
// autodetect minzoom and maxzoom
$result = $this->db->query('select min(zoom_level) as min, max(zoom_level) as max from tiles');
$resultdata = $result->fetchAll();
if (!array_key_exists('minzoom', $metadata)){
$metadata['minzoom'] = $resultdata[0]['min'];
}
if (!array_key_exists('maxzoom', $metadata)){
$metadata['maxzoom'] = $resultdata[0]['max'];
}
}
// autodetect format using JPEG magic number FFD8
if (!array_key_exists('format', $metadata)) {
$result = $this->db->query('select hex(substr(tile_data,1,2)) as magic from tiles limit 1');
$resultdata = $result->fetchAll();
$metadata['format'] = ($resultdata[0]['magic'] == 'FFD8')
? 'jpg'
: 'png';
}
// autodetect bounds
if (!array_key_exists('bounds', $metadata)) {
$result = $this->db->query('select min(tile_column) as w, max(tile_column) as e, min(tile_row) as s, max(tile_row) as n from tiles where zoom_level='.$metadata['maxzoom']);
$resultdata = $result->fetchAll();
$w = -180 + 360 * ($resultdata[0]['w'] / pow(2, $metadata['maxzoom']));
$e = -180 + 360 * ((1 + $resultdata[0]['e']) / pow(2, $metadata['maxzoom']));
$n = $this->row2lat($resultdata[0]['n'], $metadata['maxzoom']);
$s = $this->row2lat($resultdata[0]['s'] - 1, $metadata['maxzoom']);
$metadata['bounds'] = implode(',', [$w, $s, $e, $n]);
}
$mbt = explode('.', $mbt);
$metadata['basename'] = $mbt[0];
$metadata = $this->metadataValidation($metadata);
return $metadata;
}
/**
* Convert row number to latitude of the top of the row
* @param integer $r
* @param integer $zoom
* @return integer
*/
public function row2lat($r, $zoom) {
$y = $r / pow(2, $zoom - 1 ) - 1;
return rad2deg(2.0 * atan(exp(3.191459196 * $y)) - 1.57079632679489661922);
}
/**
* Valids metaJSON
* @param object $metadata
* @return object
*/
public function metadataValidation($metadata) {
if (!array_key_exists('bounds', $metadata)) {
$metadata['bounds'] = [-180, -85.06, 180, 85.06];
} elseif (!is_array($metadata['bounds'])) {
$metadata['bounds'] = array_map('floatval', explode(',', $metadata['bounds']));
}
if (!array_key_exists('profile', $metadata)) {
$metadata['profile'] = 'mercator';
}
if (array_key_exists('minzoom', $metadata)){
$metadata['minzoom'] = intval($metadata['minzoom']);
}else{
$metadata['minzoom'] = 0;
}
if (array_key_exists('maxzoom', $metadata)){
$metadata['maxzoom'] = intval($metadata['maxzoom']);
}else{
$metadata['maxzoom'] = 18;
}
if (!array_key_exists('format', $metadata)) {
if(array_key_exists('tiles', $metadata)){
$pos = strrpos($metadata['tiles'][0], '.');
$metadata['format'] = trim(substr($metadata['tiles'][0], $pos + 1));
}
}
$formats = $this->config['availableFormats'];
if(!in_array(strtolower($metadata['format']), $formats)){
$metadata['format'] = 'png';
}
if (!array_key_exists('scale', $metadata)) {
$metadata['scale'] = 1;
}
if(!array_key_exists('tiles', $metadata)){
$tiles = [];
foreach ($this->config['baseUrls'] as $url) {
$url = '' . $this->config['protocol'] . '://' . $url . '/' .
$metadata['basename'] . '/{z}/{x}/{y}';
if(strlen($metadata['format']) <= 4){
$url .= '.' . $metadata['format'];
}
$tiles[] = $url;
}
$metadata['tiles'] = $tiles;
}
return $metadata;
}
/**
* SQLite connection
* @param string $tileset
*/
public function DBconnect($tileset) {
try {
$this->db = new PDO('sqlite:' . $tileset, '', '', [PDO::ATTR_PERSISTENT => true]);
} catch (Exception $exc) {
echo $exc->getTraceAsString();
die;
}
if (!isset($this->db)) {
header('Content-type: text/plain');
echo 'Incorrect tileset name: ' . $tileset;
die;
}
}
/**
* Check if file is modified and set Etag headers
* @param string $filename
* @return boolean
*/
public function isModified($filename) {
$filename = $this->config['dataRoot'] . $filename . '.mbtiles';
$lastModifiedTime = filemtime($filename);
$eTag = md5($lastModifiedTime);
header('Last-Modified: ' . gmdate('D, d M Y H:i:s', $lastModifiedTime) . ' GMT');
header('Etag:' . $eTag);
if (@strtotime($_SERVER['HTTP_IF_MODIFIED_SINCE']) == $lastModifiedTime ||
@trim($_SERVER['HTTP_IF_NONE_MATCH']) == $eTag) {
return true;
} else {
return false;
}
}
/**
* Returns tile of dataset
* @param string $tileset
* @param integer $z
* @param integer $y
* @param integer $x
* @param string $ext
*/
public function renderTile($tileset, $z, $y, $x, $ext) {
if ($this->isDBLayer($tileset)) {
if ($this->isModified($tileset) == true) {
header('Access-Control-Allow-Origin: *');
header('HTTP/1.1 304 Not Modified');
die;
}
$this->DBconnect($this->config['dataRoot'] . $tileset . '.mbtiles');
$z = floatval($z);
$y = floatval($y);
$x = floatval($x);
$flip = true;
if ($flip) {
$y = pow(2, $z) - 1 - $y;
}
$result = $this->db->query('select tile_data as t from tiles where zoom_level=' . $z . ' and tile_column=' . $x . ' and tile_row=' . $y);
$data = $result->fetchColumn();
if (!isset($data) || $data === false) {
//if tile doesn't exist
//select scale of tile (for retina tiles)
$result = $this->db->query('select value from metadata where name="scale"');
$resultdata = $result->fetchColumn();
$scale = isset($resultdata) && $resultdata !== false ? $resultdata : 1;
$this->getCleanTile($scale, $ext);
} else {
$result = $this->db->query('select value from metadata where name="format"');
$resultdata = $result->fetchColumn();
$format = isset($resultdata) && $resultdata !== false ? $resultdata : 'png';
if ($format == 'jpg') {
$format = 'jpeg';
}
if ($format == 'pbf') {
header('Content-type: application/x-protobuf');
header('Content-Encoding:gzip');
} else {
header('Content-type: image/' . $format);
}
header('Access-Control-Allow-Origin: *');
echo $data;
}
} elseif ($this->isFileLayer($tileset)) {
$name = './' . $tileset . '/' . $z . '/' . $x . '/' . $y;
$mime = 'image/';
if($ext != null){
$name .= '.' . $ext;
}
if ($fp = @fopen($name, 'rb')) {
if($ext != null){
$mime .= $ext;
}else{
//detect image type from file
$mimetypes = ['gif', 'jpeg', 'png'];
$mime .= $mimetypes[exif_imagetype($name) - 1];
}
header('Access-Control-Allow-Origin: *');
header('Content-Type: ' . $mime);
header('Content-Length: ' . filesize($name));
fpassthru($fp);
die;
} else {
//scale of tile (for retina tiles)
$meta = json_decode(file_get_contents($tileset . '/metadata.json'));
if(!isset($meta->scale)){
$meta->scale = 1;
}
}
$this->getCleanTile($meta->scale, $ext);
} else {
header('HTTP/1.1 404 Not Found');
echo 'Server: Unknown or not specified dataset "' . $tileset . '"';
die;
}
}
/**
* Returns clean tile
* @param integer $scale Default 1
*/
public function getCleanTile($scale = 1, $format = 'png') {
switch ($format) {
case 'pbf':
header('Access-Control-Allow-Origin: *');
header('HTTP/1.1 204 No Content');
header('Content-Type: application/json; charset=utf-8');
break;
case 'webp':
header('Access-Control-Allow-Origin: *');
header('Content-type: image/webp');
echo base64_decode('UklGRhIAAABXRUJQVlA4TAYAAAAvQWxvAGs=');
break;
case 'jpg':
header('Access-Control-Allow-Origin: *');
header('Content-type: image/jpg');
echo base64_decode('/9j/2wBDAAMCAgICAgMCAgIDAwMDBAYEBAQEBAgGBgUGCQgKCgkICQkKDA8MCgsOCwkJDRENDg8QEBEQCgwSExIQEw8QEBD/yQALCAABAAEBAREA/8wABgAQEAX/2gAIAQEAAD8A0s8g/9k=');
break;
case 'png':
default:
header('Access-Control-Allow-Origin: *');
header('Content-type: image/png');
// 256x256 transparent optimised png tile
echo pack('H*', '89504e470d0a1a0a0000000d494844520000010000000100010300000066bc3a2500000003504c5445000000a77a3dda0000000174524e530040e6d8660000001f494441541819edc1010d000000c220fba77e0e37600000000000000000e70221000001f5a2bd040000000049454e44ae426082');
break;
}
die;
}
/**
* Returns tile's UTFGrid
* @param string $tileset
* @param integer $z
* @param integer $y
* @param integer $x
*/
public function renderUTFGrid($tileset, $z, $y, $x, $flip = true) {
if ($this->isDBLayer($tileset)) {
if ($this->isModified($tileset) == true) {
header('HTTP/1.1 304 Not Modified');
}
if ($flip) {
$y = pow(2, $z) - 1 - $y;
}
try {
$this->DBconnect($this->config['dataRoot'] . $tileset . '.mbtiles');
$query = 'SELECT grid FROM grids WHERE tile_column = ' . $x . ' AND '
. 'tile_row = ' . $y . ' AND zoom_level = ' . $z;
$result = $this->db->query($query);
$data = $result->fetch(PDO::FETCH_ASSOC);
if ($data !== false) {
$grid = gzuncompress($data['grid']);
$grid = substr(trim($grid), 0, -1);
//adds legend (data) to output
$grid .= ',"data":{';
$kquery = 'SELECT key_name as key, key_json as json FROM grid_data '
. 'WHERE zoom_level=' . $z . ' and '
. 'tile_column=' . $x . ' and tile_row=' . $y;
$result = $this->db->query($kquery);
while ($r = $result->fetch(PDO::FETCH_ASSOC)) {
$grid .= '"' . $r['key'] . '":' . $r['json'] . ',';
}
$grid = rtrim($grid, ',') . '}}';
header('Access-Control-Allow-Origin: *');
if (isset($_GET['callback']) && !empty($_GET['callback'])) {
header('Content-Type:text/javascript charset=utf-8');
echo $_GET['callback'] . '(' . $grid . ');';
} else {
header('Content-Type:text/javascript; charset=utf-8');
echo $grid;
}
} else {
header('Access-Control-Allow-Origin: *');
echo '{}';
die;
}
} catch (Exception $e) {
header('Content-type: text/plain');
print 'Error querying the database: ' . $e->getMessage();
}
} else {
echo 'Server: no MBTiles tileset';
die;
}
}
/**
* Returns server info
*/
public function getInfo() {
$this->setDatasets();
$maps = array_merge($this->fileLayer, $this->dbLayer);
header('Content-Type: text/html;charset=UTF-8');
echo '<!DOCTYPE html><html><head><meta charset="UTF-8"><title>' . $this->config['serverTitle'] . '</title></head><body>' .
'<h1>' . $this->config['serverTitle'] . '</h1>' .
'TileJSON service: <a href="//' . $this->config['baseUrls'][0] . '/index.json">' . $this->config['baseUrls'][0] . '/index.json</a><br>' .
'WMTS service: <a href="//' . $this->config['baseUrls'][0] . '/wmts">' . $this->config['baseUrls'][0] . '/wmts</a><br>' .
'TMS service: <a href="//' . $this->config['baseUrls'][0] . '/tms">' . $this->config['baseUrls'][0] . '/tms</a>';
foreach ($maps as $map) {
$extend = '[' . implode($map['bounds'], ', ') . ']';
echo '<p>Tileset: <b>' . $map['basename'] . '</b><br>' .
'Metadata: <a href="//' . $this->config['baseUrls'][0] . '/' . $map['basename'] . '.json">' .
$this->config['baseUrls'][0] . '/' . $map['basename'] . '.json</a><br>' .
'Bounds: ' . $extend ;
if(isset($map['crs'])){echo '<br>CRS: ' . $map['crs'];}
echo '</p>';
}
echo '<p>Copyright (C) 2016 - Klokan Technologies GmbH</p>';
echo '</body></html>';
}
/**
* Returns html viewer
*/
public function getHtml() {
$this->setDatasets();
$maps = array_merge($this->fileLayer, $this->dbLayer);
if (isset($this->config['template']) && file_exists($this->config['template'])) {
$baseUrls = $this->config['baseUrls'];
$serverTitle = $this->config['serverTitle'];
include_once $this->config['template'];
} else {
header('Content-Type: text/html;charset=UTF-8');
echo '<!DOCTYPE html><html><head><meta charset="UTF-8"><title>' . $this->config['serverTitle'] . '</title>';
echo '<link rel="stylesheet" type="text/css" href="//cdn.klokantech.com/tileviewer/v1/index.css" />
<script src="//cdn.klokantech.com/tileviewer/v1/index.js"></script><body>
<script>tileserver({index:"' . $this->config['protocol'] . '://' . $this->config['baseUrls'][0] . '/index.json", tilejson:"' . $this->config['protocol'] . '://' . $this->config['baseUrls'][0] . '/%n.json", tms:"' . $this->config['protocol'] . '://' . $this->config['baseUrls'][0] . '/tms", wmts:"' . $this->config['protocol'] . '://' . $this->config['baseUrls'][0] . '/wmts"});</script>
<h1>Welcome to ' . $this->config['serverTitle'] . '</h1>
<p>This server distributes maps to desktop, web, and mobile applications.</p>
<p>The mapping data are available as OpenGIS Web Map Tiling Service (OGC WMTS), OSGEO Tile Map Service (TMS), and popular XYZ urls described with TileJSON metadata.</p>';
if (!isset($maps)) {
echo '<h3 style="color:darkred;">No maps available yet</h3>
<p style="color:darkred; font-style: italic;">
Ready to go - just upload some maps into directory:' . getcwd() . '/ on this server.</p>
<p>Note: The maps can be a directory with tiles in XYZ format with metadata.json file.<br/>
You can easily convert existing geodata (GeoTIFF, ECW, MrSID, etc) to this tile structure with <a href="http://www.maptiler.com">MapTiler Cluster</a> or open-source projects such as <a href="http://www.klokan.cz/projects/gdal2tiles/">GDAL2Tiles</a> or <a href="http://www.maptiler.org/">MapTiler</a> or simply upload any maps in MBTiles format made by <a href="http://www.tilemill.com/">TileMill</a>. Helpful is also the <a href="https://github.com/mapbox/mbutil">mbutil</a> tool. Serving directly from .mbtiles files is supported, but with decreased performance.</p>';
} else {
echo '<ul>';
foreach ($maps as $map) {
echo "<li>" . $map['name'] . '</li>';
}
echo '</ul>';
}
echo '</body></html>';
}
}
}
/**
* JSON service
*/
class Json extends Server {
/**
* Callback for JSONP default grid
* @var string
*/
private $callback = 'grid';
/**
* @param array $params
*/
public $layer = 'index';
/**
* @var integer
*/
public $z;
/**
* @var integer
*/
public $y;
/**
* @var integer
*/
public $x;
/**
* @var string
*/
public $ext;
/**
*
* @param array $params
*/
public function __construct($params) {
parent::__construct();
parent::setParams($params);
if (isset($_GET['callback']) && !empty($_GET['callback'])) {
$this->callback = $_GET['callback'];
}
}
/**
* Adds metadata about layer
* @param array $metadata
* @return array
*/
public function metadataTileJson($metadata) {
$metadata['tilejson'] = '2.0.0';
$metadata['scheme'] = 'xyz';
if ($this->isDBLayer($metadata['basename'])) {
$this->DBconnect($this->config['dataRoot'] . $metadata['basename'] . '.mbtiles');
$res = $this->db->query('SELECT name FROM sqlite_master WHERE name="grids";');
if ($res) {
foreach ($this->config['baseUrls'] as $url) {
$grids[] = '' . $this->config['protocol'] . '://' . $url . '/' . $metadata['basename'] . '/{z}/{x}/{y}.grid.json';
}
$metadata['grids'] = $grids;
}
}
if (array_key_exists('json', $metadata)) {
$mjson = json_decode(stripslashes($metadata['json']));
foreach ($mjson as $key => $value) {
if ($key != 'Layer'){
$metadata[$key] = $value;
}
}
unset($metadata['json']);
}
return $metadata;
}
/**
* Creates JSON from array
* @param string $basename
* @return string
*/
private function createJson($basename) {
$maps = array_merge($this->fileLayer, $this->dbLayer);
if ($basename == 'index') {
$output = '[';
foreach ($maps as $map) {
$output = $output . json_encode($this->metadataTileJson($map)) . ',';
}
if (strlen($output) > 1) {
$output = substr_replace($output, ']', -1);
} else {
$output = $output . ']';
}
} else {
foreach ($maps as $map) {
if (strpos($map['basename'], $basename) !== false) {
$output = json_encode($this->metadataTileJson($map));
break;
}
}
}
if (!isset($output)) {
echo 'TileServer: unknown map ' . $basename;
die;
}
return stripslashes($output);
}
/**
* Returns JSON with callback
*/
public function getJson() {
parent::setDatasets();
header('Access-Control-Allow-Origin: *');
header('Content-Type: application/json; charset=utf-8');
if ($this->callback !== 'grid') {
echo $this->callback . '(' . $this->createJson($this->layer) . ');'; die;
} else {
echo $this->createJson($this->layer); die;
}
}
/**
* Returns JSONP with callback
*/
public function getJsonp() {
parent::setDatasets();
header('Access-Control-Allow-Origin: *');
header('Content-Type: application/javascript; charset=utf-8');
echo $this->callback . '(' . $this->createJson($this->layer) . ');';
}
/**
* Returns UTFGrid in JSON format
*/
public function getUTFGrid() {
parent::renderUTFGrid($this->layer, $this->z, $this->y, $this->x);
}
}
/**
* Web map tile service
*/
class Wmts extends Server {
/**
* @param array $params
*/
public $layer;
/**
* @var integer
*/
public $z;
/**
* @var integer
*/
public $y;
/**
* @var integer
*/
public $x;
/**
* @var string
*/
public $ext;
/**
*
* @param array $params
*/
public function __construct($params) {
parent::__construct();
if (isset($params)) {
parent::setParams($params);
}
}
/**
* Tests request from url and call method
*/
public function get() {
$request = $this->getGlobal('Request');
if ($request !== false && $request == 'gettile') {
$this->getTile();
} else {
parent::setDatasets();
$this->getCapabilities();
}
}
/**
* Validates tilematrixset, calculates missing params
* @param Object $tileMatrix
* @return Object
*/
public function parseTileMatrix($layer, $tileMatrix){
//process projection
if(isset($layer['proj4'])){
preg_match_all("/([^+= ]+)=([^= ]+)/", $layer['proj4'], $res);
$proj4 = array_combine($res[1], $res[2]);
}
for($i = 0; $i < count($tileMatrix); $i++){
if(!isset($tileMatrix[$i]['id'])){
$tileMatrix[$i]['id'] = (string) $i;
}
if (!isset($tileMatrix[$i]['extent']) && isset($layer['extent'])) {
$tileMatrix[$i]['extent'] = $layer['extent'];
}
if (!isset($tileMatrix[$i]['matrix_size'])) {
$tileExtent = $this->tilesOfExtent(
$tileMatrix[$i]['extent'],
$tileMatrix[$i]['origin'],
$tileMatrix[$i]['pixel_size'],
$tileMatrix[$i]['tile_size']
);
$tileMatrix[$i]['matrix_size'] = [
$tileExtent[2] + 1,
$tileExtent[1] + 1
];
}
if(!isset($tileMatrix[$i]['origin']) && isset($tileMatrix[$i]['extent'])){
$tileMatrix[$i]['origin'] = [
$tileMatrix[$i]['extent'][0], $tileMatrix[$i]['extent'][3]
];
}
// Origins of geographic coordinate systems are setting in opposite order
if (isset($proj4) && $proj4['proj'] === 'longlat') {
$tileMatrix[$i]['origin'] = array_reverse($tileMatrix[$i]['origin']);
}
if(!isset($tileMatrix[$i]['scale_denominator'])){
$tileMatrix[$i]['scale_denominator'] = count($tileMatrix) - $i;
}
if(!isset($tileMatrix[$i]['tile_size'])){
$tileSize = 256 * (int) $layer['scale'];
$tileMatrix[$i]['tile_size'] = [$tileSize, $tileSize];
}
}
return $tileMatrix;
}
/**
* Calculates corners of tilematrix
* @param array $extent
* @param array $origin
* @param array $pixel_size
* @param array $tile_size
* @return array
*/
public function tilesOfExtent($extent, $origin, $pixel_size, $tile_size) {
$tiles = [
$this->minsample($extent[0] - $origin[0], $pixel_size[0] * $tile_size[0]),
$this->minsample($extent[1] - $origin[1], $pixel_size[1] * $tile_size[1]),
$this->maxsample($extent[2] - $origin[0], $pixel_size[0] * $tile_size[0]),
$this->maxsample($extent[3] - $origin[1], $pixel_size[1] * $tile_size[1]),
];
return $tiles;
}
private function minsample($x, $f){
return $f > 0 ? floor($x / $f) : ceil(($x / $f) - 1);
}
private function maxsample($x, $f){
return $f < 0 ? floor($x / $f) : ceil(($x / $f) - 1);
}
/**
* Default TileMetrixSet for Pseudo Mercator projection 3857
* @param ?number $maxZoom
* @return string TileMatrixSet xml
*/
public function getMercatorTileMatrixSet($maxZoom = 18){
$denominatorBase = 559082264.0287178;
$extent = [-20037508.34,-20037508.34,20037508.34,20037508.34];
$tileMatrixSet = [];
for($i = 0; $i <= $maxZoom; $i++){
$matrixSize = pow(2, $i);
$tileMatrixSet[] = [
'extent' => $extent,
'id' => (string) $i,
'matrix_size' => [$matrixSize, $matrixSize],
'origin' => [$extent[0], $extent[3]],
'scale_denominator' => $denominatorBase / pow(2, $i),
'tile_size' => [256, 256]
];
}
return $this->getTileMatrixSet('GoogleMapsCompatible', $tileMatrixSet, 'EPSG:3857');
}
/**
* Default TileMetrixSet for WGS84 projection 4326
* @return string Xml
*/
public function getWGS84TileMatrixSet(){
$extent = [-180.000000, -90.000000, 180.000000, 90.000000];
$scaleDenominators = [279541132.01435887813568115234, 139770566.00717943906784057617,
69885283.00358971953392028809, 34942641.50179485976696014404, 17471320.75089742988348007202,
8735660.37544871494174003601, 4367830.18772435747087001801, 2183915.09386217873543500900,
1091957.54693108936771750450, 545978.77346554468385875225, 272989.38673277234192937613,
136494.69336638617096468806, 68247.34668319308548234403, 34123.67334159654274117202,
17061.83667079825318069197, 8530.91833539912659034599, 4265.45916769956329517299,
2132.72958384978574031265];
$tileMatrixSet = [];
for($i = 0; $i <= 17; $i++){
$matrixSize = pow(2, $i);
$tileMatrixSet[] = [
'extent' => $extent,
'id' => (string) $i,
'matrix_size' => [$matrixSize * 2, $matrixSize],
'origin' => [$extent[3], $extent[0]],
'scale_denominator' => $scaleDenominators[$i],
'tile_size' => [256, 256]
];
}
return $this->getTileMatrixSet('WGS84', $tileMatrixSet, 'EPSG:4326');
}
/**
* Prints WMTS TileMatrixSet
* @param string $name
* @param array $tileMatrixSet Array of levels
* @param string $crs Code of crs eg: EPSG:3857
* @return string TileMatrixSet xml
*/
public function getTileMatrixSet($name, $tileMatrixSet, $crs = 'EPSG:3857'){
$srs = explode(':', $crs);
$TileMatrixSet = '<TileMatrixSet>
<ows:Title>' . $name . '</ows:Title>
<ows:Abstract>' . $name . ' '. $crs .'</ows:Abstract>
<ows:Identifier>' . $name . '</ows:Identifier>
<ows:SupportedCRS>urn:ogc:def:crs:'.$srs[0].'::'.$srs[1].'</ows:SupportedCRS>';
// <WellKnownScaleSet>urn:ogc:def:wkss:OGC:1.0:GoogleMapsCompatible</WellKnownScaleSet>;
foreach($tileMatrixSet as $level){
$TileMatrixSet .= '
<TileMatrix>
<ows:Identifier>' . $level['id'] . '</ows:Identifier>
<ScaleDenominator>' . $level['scale_denominator'] . '</ScaleDenominator>
<TopLeftCorner>'. $level['origin'][0] . ' ' . $level['origin'][1] .'</TopLeftCorner>
<TileWidth>' . $level['tile_size'][0] . '</TileWidth>
<TileHeight>' . $level['tile_size'][1] . '</TileHeight>
<MatrixWidth>' . $level['matrix_size'][0] . '</MatrixWidth>
<MatrixHeight>' . $level['matrix_size'][1] . '</MatrixHeight>
</TileMatrix>';
}
$TileMatrixSet .= '</TileMatrixSet>';
return $TileMatrixSet;
}
/**
* Returns tilesets getCapabilities
*/
public function getCapabilities() {
$layers = array_merge($this->fileLayer, $this->dbLayer);
//if TileMatrixSet is provided validate it
for($i = 0; $i < count($layers); $i++){
if($layers[$i]['profile'] == 'custom'){
$layers[$i]['tile_matrix'] = $this->parseTileMatrix(
$layers[$i],
$layers[$i]['tile_matrix']
);
}
}
header('Content-type: application/xml');
echo '<?xml version="1.0" encoding="UTF-8" ?>
<Capabilities xmlns="http://www.opengis.net/wmts/1.0" xmlns:ows="http://www.opengis.net/ows/1.1" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:gml="http://www.opengis.net/gml" xsi:schemaLocation="http://www.opengis.net/wmts/1.0 http://schemas.opengis.net/wmts/1.0/wmtsGetCapabilities_response.xsd" version="1.0.0">
<!-- Service Identification -->
<ows:ServiceIdentification>
<ows:Title>tileserverphp</ows:Title>
<ows:ServiceType>OGC WMTS</ows:ServiceType>
<ows:ServiceTypeVersion>1.0.0</ows:ServiceTypeVersion>
</ows:ServiceIdentification>
<!-- Operations Metadata -->
<ows:OperationsMetadata>
<ows:Operation name="GetCapabilities">
<ows:DCP>
<ows:HTTP>
<ows:Get xlink:href="' . $this->config['protocol'] . '://' . $this->config['baseUrls'][0] . '/wmts/1.0.0/WMTSCapabilities.xml">
<ows:Constraint name="GetEncoding">
<ows:AllowedValues>
<ows:Value>RESTful</ows:Value>
</ows:AllowedValues>
</ows:Constraint>
</ows:Get>
<!-- add KVP binding in 10.1 -->
<ows:Get xlink:href="' . $this->config['protocol'] . '://' . $this->config['baseUrls'][0] . '/wmts?">
<ows:Constraint name="GetEncoding">
<ows:AllowedValues>
<ows:Value>KVP</ows:Value>
</ows:AllowedValues>
</ows:Constraint>
</ows:Get>
</ows:HTTP>
</ows:DCP>
</ows:Operation>
<ows:Operation name="GetTile">
<ows:DCP>
<ows:HTTP>
<ows:Get xlink:href="' . $this->config['protocol'] . '://' . $this->config['baseUrls'][0] . '/wmts/">
<ows:Constraint name="GetEncoding">
<ows:AllowedValues>
<ows:Value>RESTful</ows:Value>
</ows:AllowedValues>
</ows:Constraint>
</ows:Get>
<ows:Get xlink:href="' . $this->config['protocol'] . '://' . $this->config['baseUrls'][0] . '/wmts?">
<ows:Constraint name="GetEncoding">
<ows:AllowedValues>
<ows:Value>KVP</ows:Value>
</ows:AllowedValues>
</ows:Constraint>
</ows:Get>
</ows:HTTP>