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guidepost.php
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guidepost.php
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<?php
# this file is part of Guideposts
# Copyright (C) 2014 - 2018 Michal Grezl
# 2017 Marián Kyral
#
# Guideposts 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; either version 3 of the License, or
# (at your option) any later version.
#
# 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, write to the Free Software Foundation,
# Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
#
#lat-y
#lon-x
$global_error_message = "";
################################################################################
function is_utf8($str)
################################################################################
{
return (bool) preg_match('//u', $str);
}
################################################################################
function printdebug($x)
################################################################################
{
//let it print when debugging
//return;
// print $x."<br>";
$x = str_replace('%', '(percent)', $x);
$x = str_replace(';', '(semicolon)', $x);
$x = str_replace('*', '(asterisk)', $x);
$x = str_replace('/', '(slash)', $x);
$x = str_replace("\\", '(backslash)', $x);
$x = str_replace('~', '(tilda)', $x);
$x = str_replace('>', '(GT)', $x);
$x = str_replace('<', '(LT)', $x);
$x = str_replace('?', '(question)', $x);
$x = str_replace('-', '(minus)', $x);
// system ("/usr/bin/logger -t guidepostapiphp '$x'");
syslog(LOG_INFO, $x);
}
################################################################################
function get_param($param)
################################################################################
{
if (isset($_GET[$param])) {return($_GET[$param]);}
if (isset($_POST[$param])) {return($_POST[$param]);}
return "";
}
################################################################################
function page_header()
################################################################################
{
if (get_param("source") == "mobile") { return; }
print "<!DOCTYPE HTML PUBLIC '-//W3C//DTD HTML 4.01 Transitional//EN' 'http://www.w3.org/TR/html4/loose.dtd'>\n";
print "<html>\n";
print " <head>\n";
print " <meta http-equiv='Content-Type' content='text/html; charset=UTF-8'>\n";
print " <title>openstreetmap.cz image upload</title>\n";
print " <script src='OpenLayers.2.8.0.js'></script>\n";
print " <script src='jquery-1.11.3.min.js'></script>\n";
print " <script src='jquery-ui.min.js'></script>\n";
print " <script language='javascript' type='text/javascript' src='upload.js'></script>\n";
print " <link href='upload.css' rel='stylesheet' type='text/css'/>\n";
}
################################################################################
function page_footer()
################################################################################
{
if (get_param("source") == "mobile") { return; }
print " </body>\n";
print "</html>\n";
}
################################################################################
function show_upload_dialog()
################################################################################
{
$PHP_SELF = $_SERVER['PHP_SELF'];
print " </head>
<body onload='upload_init()'>\n";
$title_help = "Pokud víte že má obrázek Exif souřadnice, můžete nechat lat, lon na 0,0 (není nutno zatrhávat exif)";
print "
<div id='map' class='mapmap'></div>
<div id='form' class='form'>
<form id='coord' name='coord' action='".$PHP_SELF."' method='post' enctype='multipart/form-data' target='upload_target' onsubmit='start_upload();'>
<input type='hidden' name='action' value='file' />
<input type='hidden' name='MAX_FILE_SIZE' value='10000000' />
<fieldset>
<label>autor</label><input type='text' id='author' name='author' value='autor' size='9'>
<input name='uploadedfile' type='file' id='guidepostfile' size='20'/><br>
<label title='".$title_help."'>lat</label><input type='text' id='lat' name='lat' value='0' size='10' title='".$title_help."'>
<label title='".$title_help."'>lon</label><input type='text' id='lon' name='lon' value='0' size='10' title='".$title_help."'>
<label title='Fotka ma vlastni souradnice ulozene v EXIF'>souradnice v exif</label><input type=checkbox id='exif_checkbox' onchange='exif_checkbox_action()' title='Fotka ma vlastni souradnice ulozene v EXIF'>
</fieldset>
<fieldset>
<label>Ref</label><input type='text' name='ref' value='' size='6'>
<label>Poznámka</label><input type='text' name='note' value='' size='30'>
<br>
<input type='radio' name='gp_type' value='gp' checked>Rozcestník
<input type='radio' name='gp_type' value='map'>Mapa
<input type='radio' name='gp_type' value='pano'>Panorama
<input type='radio' name='gp_type' value='info'>Informační tabule
</fieldset>
<fieldset>
<label for='license'>licence</label>
<select id='license' name='license'>
<option value='CCBYSA4' selected>Creative Commons Attribution ShareAlike 4.0</option>
<option value='CCBYSA3'>Creative Commons Attribution ShareAlike 3.0</option>
<option value='CCBY4'>Creative Commons Attribution 4.0</option>
<option value='CCBY3'>Creative Commons Attribution 3.0</option>
<option value='CCBYSA2plus'>Creative Commons Attribution ShareAlike 2.0 or later </option>
<option value='CC0'>Creative Commons CC0 Waiver</option>
<option value='C'>Zákon č. 121/2000 Sb.</option>
</select>
</fieldset>
<fieldset>
<input type='submit' name='submitBtn' class='sbtn' value='Nahrát soubor' />
</fieldset>
</form>
</div>
<table><tr>
<td><div id='upload_div'><p style='border:3px solid #aaaaaa;' id='upload_process'>Uploading...</p></div></td>
<td><iframe id='upload_target' name='upload_target' src='#' style='width:200px;height:30px;border:3px solid #aaaaaa;'></iframe></td>
</tr></table>
\n";
}
################################################################################
function show_iphone_upload_dialog()
################################################################################
{
$PHP_SELF = $_SERVER['PHP_SELF'];
print"<script>\n";
print "function upbox_off()\n";
print "{\n";
print " document.getElementById('upbox').style.display = 'none' ;\n";
print "}\n";
print "
function exif_present()
{
document.getElementById('lat').value = 0;
document.getElementById('lat').readOnly = true;
document.getElementById('lon').value = 0;
document.getElementById('lon').readOnly = true;
}
function no_exif()
{
document.getElementById('lat').readOnly = false;
document.getElementById('lon').readOnly = false;
}
function exif_checkbox_action()
{
if (document.getElementById('exif_checkbox').checked) {
exif_present();
} else {
no_exif();
}
}
function send_data()
{
var boundary = this.generateBoundary();
var xhr = new XMLHttpRequest;
xhr.open('POST', this.form.action, true);
xhr.onreadystatechange = function() {
if (xhr.readyState === 4) {
alert(xhr.responseText);
}
};
var contentType = 'multipart/form-data; boundary=' + boundary;
xhr.setRequestHeader('Content-Type', contentType);
for (var header in this.headers) {
xhr.setRequestHeader(header, headers[header]);
}
// here's our data variable that we talked about earlier
var data = this.buildMessage(this.elements, boundary);
// finally send the request as binary data
xhr.sendAsBinary(data);
}
";
print"</script>\n";
print " </head>
<body onload='upload_init()'>\n";
$title_help = "Pokud má obrázek Exif souřadnice, můžete nechat lat, lon na 0,0";
print "
<div id='map' class='smallmap'></div>
<form name='coord' action='".$PHP_SELF."' method='post' enctype='multipart/form-data' target='upload_target' onsubmit='start_upload();'>
<input type='hidden' name='action' value='file' />
<input type='hidden' name='MAX_FILE_SIZE' value='5000000' />
<fieldset>
<label>autor</label><input type='text' id='author' name='author' value='autor' size='9'>
<input name='uploadedfile' type='file' id='guidepostfile' size='20'/><br>
<label>lat</label><input type='text' id='lat' name='lat' value='0' size='10' title='".$title_help."'>
<label>lon</label><input type='text' id='lon' name='lon' value='0' size='10' title='".$title_help."'>
<label>exif </label><input type=checkbox id='exif_checkbox' onchange='exif_checkbox_action()'>
</fieldset>
<fieldset>
<input type='reset' name='reset' value='Reset' />
<input type='submit' name='submitBtn' class='sbtn' value='Nahrat soubor' />
</fieldset>
</form>
<table><tr>
<td><p style='border:10px solid #fff;' id='upload_process'>Uploading...</p></td>
<td><iframe id='upload_target' name='upload_target' src='#' style='width:200px;height:100px;border:10px solid #aaaaaa;'></iframe></td>
</tr></table>
\n";
//set width and height to display debug output
}
################################################################################
function insert_to_db($lat, $lon, $url ,$file, $author, $ref, $note, $license, $gp_type, $gp_content)
################################################################################
{
global $global_error_message;
$db_path = "/var/www/api/guidepost";
$database = new SQLite3($db_path);
if (!$database) {
$global_error_message = (file_exists($db_path)) ? "Impossible to open, check permissions" : "Impossible to create, check permissions";
printdebug("insert_to_db(): open " . $global_error_message);
return 0;
}
$q = "insert into guidepost values (NULL, '$lat', '$lon', '$url', '$file', '$author', '$ref', '$note', '$license')";
if (!$database->exec($q)) {
$global_error_message = "Error: " . $database->lastErrorMsg();
printdebug("insert_to_db(): insert guidepost error: " . $database->lastErrorMsg());
return 0;
}
$gp_id = $database->lastInsertRowID();
$q = "insert into time (id, gp_id) values (NULL, $gp_id)";
if (!$database->exec($q)) {
$global_error_message = "Error: " . $database->lastErrorMsg();
printdebug("insert_to_db(): insert time error: " . $database->lastErrorMsg());
return 0;
}
if ($ref != '' ) {
$q = "insert into tags values (NULL, $gp_id, 'ref', '" . strtolower($ref) . "')";
if (!$database->exec($q)) {
$global_error_message = "Error: " . $database->lastErrorMsg();
printdebug("insert_to_db(): insert tags.ref error: " . $database->lastErrorMsg());
return 0;
}
}
if ($gp_type) {
switch ($gp_type) {
case 'gp':
$tag = 'rozcestnik';
break;
case 'map':
$tag = 'mapa';
break;
case 'pano':
$tag = 'panorama';
break;
case 'info':
$tag = 'infotabule';
break;
}
if ($tag) {
$q = "insert into tags values (NULL, $gp_id, '$tag', '')";
if (!$database->exec($q)) {
$global_error_message = "Error: " . $database->lastErrorMsg();
printdebug("insert_to_db(): insert 1 tags.$tag error: " . $database->lastErrorMsg());
return 0;
}
}
if ($gp_type == 'gp' && count($gp_content) > 0) {
foreach($gp_content as $content) {
$tag = '';
switch ($content) {
case 'hiking':
$tag = 'pesi';
break;
case 'cycle':
$tag = 'cyklo';
break;
case 'ski':
$tag = 'lyzarska';
break;
case 'horse':
$tag = 'konska';
break;
case 'wheelchair':
$tag = 'vozíčkář';
break;
}
if ($tag) {
$q = "insert into tags values (NULL, $gp_id, '$tag', '')";
if (!$database->exec($q)) {
$global_error_message = "Error: " . $database->lastErrorMsg();
printdebug("insert_to_db(): insert 2 tags.$tag error: " . $database->lastErrorMsg());
return 0;
}
}
}
}
}
printdebug("insert_to_db(): insert successful");
return 1;
}
################################################################################
function read_gps_location($file)
################################################################################
{
# Returns an array of latitude and longitude from the Image file
# ---- http://stackoverflow.com/a/19420991 ----
# @param image $file
# @return multitype:number |boolean
if (is_file($file)) {
$info = exif_read_data($file);
if (isset($info['GPSLatitude']) && isset($info['GPSLongitude']) &&
isset($info['GPSLatitudeRef']) && isset($info['GPSLongitudeRef']) &&
in_array($info['GPSLatitudeRef'], array('E','W','N','S')) && in_array($info['GPSLongitudeRef'], array('E','W','N','S'))) {
$GPSLatitudeRef = strtolower(trim($info['GPSLatitudeRef']));
$GPSLongitudeRef = strtolower(trim($info['GPSLongitudeRef']));
$lat_degrees_a = explode('/',$info['GPSLatitude'][0]);
$lat_minutes_a = explode('/',$info['GPSLatitude'][1]);
$lat_seconds_a = explode('/',$info['GPSLatitude'][2]);
$lng_degrees_a = explode('/',$info['GPSLongitude'][0]);
$lng_minutes_a = explode('/',$info['GPSLongitude'][1]);
$lng_seconds_a = explode('/',$info['GPSLongitude'][2]);
$lat_degrees = $lat_degrees_a[0] / $lat_degrees_a[1];
$lat_minutes = $lat_minutes_a[0] / $lat_minutes_a[1];
$lat_seconds = $lat_seconds_a[0] / $lat_seconds_a[1];
$lng_degrees = $lng_degrees_a[0] / $lng_degrees_a[1];
$lng_minutes = $lng_minutes_a[0] / $lng_minutes_a[1];
$lng_seconds = $lng_seconds_a[0] / $lng_seconds_a[1];
$lat = (float) $lat_degrees+((($lat_minutes*60)+($lat_seconds))/3600);
$lng = (float) $lng_degrees+((($lng_minutes*60)+($lng_seconds))/3600);
//If the latitude is South, make it negative.
//If the longitude is West, make it negative
$GPSLatitudeRef == 's' ? $lat *= -1 : '';
$GPSLongitudeRef == 'w' ? $lng *= -1 : '';
return array(
'lat' => $lat,
'lng' => $lng
);
}
}
return false;
}
################################################################################
function process_file()
################################################################################
{
global $_POST;
global $global_error_message;
global $php_errormsg;
$result = 0;
printdebug("!!! START !!!");
$filename = $_FILES['uploadedfile']['name'];
$error_message = "OK";
printdebug("name: $filename");
printdebug("type: ".$_FILES['uploadedfile']['type']);
printdebug("size: ".$_FILES['uploadedfile']['size']);
printdebug("tmp: ".$_FILES['uploadedfile']['tmp_name']);
printdebug("error: ".$_FILES['uploadedfile']['error']);
$license = $_POST['license'];
$lat = $_POST['lat'];
$lon = $_POST['lon'];
$author = $_POST['author'];
if (isset($_POST['ref'])) {
$ref = $_POST['ref'];
} else {
$ref = "none";
}
$note = $_POST['note'];
$gp_type = $_POST['gp_type'];
$gp_content = [];
if (isset($_POST['gp_content'])) {
foreach($_POST['gp_content'] as $selected) {
$gp_content[] = $selected;
}
}
printdebug("ref: ".$ref);
printdebug("note: ".$note);
printdebug("gp_type: ".$gp_type);
printdebug("gp_content: ".implode(",", $gp_content));
printdebug("lat:lon:author:license");
printdebug("before $lat:$lon:$author:$license");
$author = preg_replace('/[^-a-zA-Z0-9_áčďéěíľňóřšťúůýžÁČĎÉĚÍĽŇÓŘŠŤÚŮÝŽ .]/', '', $author);
$note = preg_replace('/[^-a-zA-Z0-9_áčďéěíľňóřšťúůýžÁČĎÉĚÍĽŇÓŘŠŤÚŮÝŽ .]/', '', $note);
$lat = preg_replace('/,/', '\.', $lat);
$lon = preg_replace('/,/', '\.', $lon);
$lat = preg_replace('/[^0-9.]/', '', $lat);
$lon = preg_replace('/[^0-9.]/', '', $lon);
$ref = preg_replace('/[^a-zA-Z0-9.,;áčďéěíľňóřšťúůýžÁČĎÉĚÍĽŇÓŘŠŤÚŮÝŽ\/]/', '', $ref);
$license = preg_replace('/[^CBYSA2340plus]/', '', $license);
printdebug("after $lat:$lon:$author:$license");
$file = basename($filename);
$target_path = "/var/www/api/uploads/" . $file;
$final_path = "/var/www/api/img/guidepost/" . $file;
$final_rel_path = "img/guidepost/" . $file;
$target_path = preg_replace('/#/', '', $target_path);
$target_path = preg_replace('/;/', '', $target_path);
$target_path = preg_replace('/&/', '', $target_path);
printdebug("target: $target_path");
#keep this as the first test
if (file_exists($_FILES['uploadedfile']['tmp_name'])) {
printdebug("soubor byl uspesne uploadnut do tmp\n");
$result = 1;
} else {
$error_message = "nepodarilo se uploadnout soubor";
printdebug("cannot upload file\n");
$result = 0;
}
if ($_FILES['uploadedfile']['error'] == "1") {
$error_message = "soubor je prilis velky";
printdebug($error_message);
$result = 0;
}
if (!is_utf8($author)) {
$error_message = "author is not valid utf8";
printdebug($error_message);
$result = 0;
}
if ($result && !is_utf8($note)) {
$error_message = "note is not valid utf8";
printdebug($error_message);
$result = 0;
}
if ($result && !is_utf8($license)) {
$error_message = "license is not valid utf8";
printdebug($error_message);
$result = 0;
}
if ($result && $license === "") {
$error_message = "license must be defined";
printdebug($error_message);
$result = 0;
}
if ($result && $author === "") {
$error_message = "author nezadan";
printdebug($error_message);
$result = 0;
}
if ($result && $author === "android" or $author === "autor") {
$error_message = "zmente vase jmeno";
printdebug($error_message);
$result = 0;
}
//sanitize filename
if ($result && strpos($filename, ';') !== FALSE) {
$error_message = "spatny soubor: znak strednik";
printdebug($error_message);
$result = 0;
}
if ($result && strpos($filename, '&') !== FALSE) {
$error_message = "spatny soubor: znak divnaosmicka";
printdebug($error_message);
$result = 0;
}
if ($result && file_exists($final_path)) {
$error_message = "file already exists ($file), please rename your copy";
printdebug($error_message);
$result = 0;
}
if ($result && !move_uploaded_file($_FILES['uploadedfile']['tmp_name'], $target_path)) {
$error_message = "Chyba pri presouvani souboru z apache upload to target";
printdebug($error_message);
$result = 0;
} else {
printdebug("File '$file' has been moved from tmp to $target_path");
}
if ($result && mime_content_type($target_path) != 'image/jpeg') {
$error_message = "spatny soubor: ocekavan image/jpeg";
printdebug($error_message);
$result = 0;
}
// Check coordinates
if ($result && $lat && $lon) {
printdebug("soubor byl poslan se souradnicemi ve formulari");
}
// Missing coordinates
if ($result && !$lat && !$lon){
printdebug("soubor byl poslan se souradnicemi 0,0 -> exifme");
$ll = read_gps_location($target_path);
if (!$ll) {
$result = 0;
$error_message = "poslano latlon 0,0 a nepodarilo se zjistit souradnice z exif";
printdebug("read_gps_location() error $error_message");
} else {
$lat = $ll['lat'];
$lon = $ll['lng'];
printdebug("read_gps_location() found coordinates: $lat, $lon");
}
}
if ($result && $lat > 180 or $lon > 180 or $lat < -180 or $lon < -180) {
$error_message = "bad coordinates";
printdebug($error_message);
$result = 0;
}
if ($result && !copy($target_path, $final_path)) {
$error_message = "failed to copy $target_path to $final_path . php: $php_errormsg";
printdebug($error_message);
$result = 0;
}
if ($result) {
if (!insert_to_db($lat, $lon, $final_rel_path, $file, $author, $ref, $note, $license, $gp_type, $gp_content)) {
$error_message = "failed to insert to db:" . $global_error_message;
$result = 0;
if (!unlink ($target_path)) {
printdebug("$file cannot be deleted from upload, inserted successfuly");
}
}
}
if ($result && !unlink ("uploads/$file")) {
printdebug("$file cannot be deleted from upload, inserted successfuly");
}
if (!$result) {
printdebug("Upload refused: ".$error_message);
}
if ($result == 0 and $error_message == "") {
$error_message = "Divna chyba";
printdebug($error_message);
}
if (get_param("source") == "mobile") {
print "$result-$error_message";
} else {
print " </head>\n";
print " <body>\n";
print "
<p>konec</p>
<div id='x'></div>
<script language='javascript' type='text/javascript'>
\$('#x').text('*** OK ***');
\$('#x').hide();
\$('#x').show('highlight',{color: 'lightgreen'},'2000');
parent.stop_upload(".$result.",'".$error_message."', '".$filename."');
</script>\n";
}
printdebug("!!! END !!!");
return $result;
}
################################################################################
function create_db()
################################################################################
{
global $db;
global $create_query;
$create_query = "CREATE TABLE guidepost (
id int primary key AUTOINCREMENT,
lat numeric,
lon numeric,
url varchar,
name varchar,
attribution varchar,
ref varchar,
note varchar,
license varchar
);";
$db->queryExec($create_query);
$db->queryExec("insert into guidepost values (NULL, 50.1, 17.1, 'x', 'znacka', 'autor', 'XB001','poznamka1', 'C');");
$db->queryExec("insert into guidepost values (NULL, 50.2, 17.2, 'x', 'znacka', 'autor', 'XB002','poznamka2', 'C');");
$db->queryExec("insert into guidepost values (NULL, 50.3, 17.3, 'x', 'znacka', 'autor', 'XB003','poznamka3', 'C');");
$db->queryExec("insert into guidepost values (NULL, 50.4, 17.4, 'x', 'znacka', 'autor', 'XB004','poznamka4', 'C');");
$create_query = "CREATE TABLE tags (
id integer primary key AUTOINCREMENT,
gp_id integer,
k varchar,
v varchar
);";
$db->queryExec($create_query);
$create_query = "CREATE TABLE changes (
id integer primary key AUTOINCREMENT,
gp_id integer,
col varchar,
value varchar,
action varchar
);";
$db->queryExec($create_query);
}
/*
if(empty($_FILES) && empty($_POST) && isset($_SERVER['REQUEST_METHOD']) && strtolower($_SERVER['REQUEST_METHOD']) == 'post'){ //catch file overload error...
$postMax = ini_get('post_max_size'); //grab the size limits...
echo "<p style=\"color: #F00;\">\nPlease note files larger than {$postMax} will result in this error!<br>Please be advised this is not a limitation in the CMS, This is a limitation of the hosting server.<br>For various reasons they limit the max size of uploaded files, if you have access to the php ini file you can fix this by changing the post_max_size setting.<br> If you can't then please ask your host to increase the size limits, or use the FTP uploaded form</p>"; // echo out error and solutions...
addForm(); //bounce back to the just filled out form.
}
*/
openlog('guidepostphpapi', LOG_PID, LOG_USER);
$action = get_param("action");
printdebug("PHPAPI request:" . $action);
switch ($action) {
case "show_dialog":
page_header();
show_upload_dialog();
page_footer();
break;
case "file":
page_header();
process_file();
page_footer();
break;
case "":
$bbox = get_param('bbox');
if ($bbox == "") {
printdebug("no bbox");
closelog();
die("No bbox provided\n");
} else {
printdebug("bbox: " . $bbox);
}
list($minlon, $minlat, $maxlon, $maxlat) = preg_split('/,/', $bbox, 4);
$db = new SQLite3('guidepost');
if ($db) {
$i = 0;
$result = array();
$query = "select * from guidepost where lat < $maxlat and lat > $minlat and lon < $maxlon and lon > $minlon";
printdebug("query " . $query);
$results = $db->query($query);
while ($row = $results->fetchArray()) {
$result[$i++] = $row;
}
print json_encode($result);
} else {
printdebug("db open error: " + $err);
closelog();
die($err);
}
break;
}
closelog();
?>