corrade-http-templates

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/renderAvatarsMap/getMapTexture.php
@@ -0,0 +1,186 @@
<?php
 
###########################################################################
## Copyright (C) Wizardry and Steamworks 2015 - License: GNU GPLv3 ##
###########################################################################
## This is a script that uses Corrade's HTTP server to get the UUID of ##
## the current region map, then downloads the map as a PNG which then ##
## gets encoded to a Base64 string and echoed from this script. ##
###########################################################################
 
###########################################################################
## CONFIGURATION ##
###########################################################################
 
// The configuration file for this script containing the settings.
include_once("config.php");
 
###########################################################################
## INTERNALS ##
###########################################################################
 
###########################################################################
## Copyright (C) Wizardry and Steamworks 2015 - License: GNU GPLv3 ##
###########################################################################
function wasKeyValueGet($key, $data) {
return array_reduce(
explode(
"&",
$data
),
function($o, $p) {
$x = explode("=", $p);
return array_shift($x) != $o ? $o : array_shift($x);
},
$key
);
}
///////////////////////////////////////////////////////////////////////////
// Copyright (C) Wizardry and Steamworks 2015 - License: GNU GPLv3 //
///////////////////////////////////////////////////////////////////////////
function wasCSVToArray($csv) {
$l = array();
$s = array();
$m = "";
for ($i = 0; $i < strlen($csv); ++$i) {
switch ($csv{$i}) {
case ',':
if (sizeof($s) == 0 || !current($s) == '"') {
array_push($l, $m);
$m = "";
break;
}
$m .= $csv{$i};
continue;
case '"':
if ($i + 1 < strlen($csv) && $csv{$i} == $csv{$i + 1}) {
$m .= $csv{$i};
++$i;
break;
}
if (sizeof($s) == 0|| !current($s) == $csv[$i]) {
array_push($s, $csv{$i});
continue;
}
array_pop($s);
break;
default:
$m .= $csv{$i};
break;
}
}
array_push($l, $m);
return $l;
}
 
####
# I. Get the UUID of the map image for the current region
$params = array(
'command' => 'getgridregiondata',
'group' => $GROUP,
'password' => $PASSWORD,
'data' => 'MapImageID'
);
array_walk($params,
function(&$value, $key) {
$value = urlencode($key)."=".urlencode($value);
}
);
$postvars = implode('&', $params);
if (!($curl = curl_init())) {
print 0;
return;
}
 
curl_setopt($curl, CURLOPT_URL, $URL);
curl_setopt($curl, CURLOPT_RETURNTRANSFER, true);
curl_setopt($curl, CURLOPT_POST, true);
curl_setopt($curl, CURLOPT_POSTFIELDS, $postvars);
$return = curl_exec($curl);
curl_close($curl);
 
$success = urldecode(
wasKeyValueGet(
"success",
$return
)
);
 
// Unable to retrieve the map image?
if($success == 'False') return -1;
 
$mapUUID = wasCSVToArray(
urldecode(
wasKeyValueGet(
"data",
$return
)
)
)[1];
 
####
# II. Download the map image as a PNG file.
$params = array(
'command' => 'download',
'group' => $GROUP,
'password' => $PASSWORD,
'item' => $mapUUID,
'type' => 'Texture',
'format' => 'Png'
);
array_walk($params,
function(&$value, $key) {
$value = rawurlencode($key)."=".rawurlencode($value);
}
);
$postvars = implode('&', $params);
if (!($curl = curl_init())) {
print 0;
return;
}
curl_setopt($curl, CURLOPT_URL, $URL);
curl_setopt($curl, CURLOPT_RETURNTRANSFER, true);
curl_setopt($curl, CURLOPT_POST, true);
curl_setopt($curl, CURLOPT_POSTFIELDS, $postvars);
$return = curl_exec($curl);
curl_close($curl);
 
$success = urldecode(
wasKeyValueGet(
"success",
$return
)
);
 
// Unable to download the region map texture?
if($success == 'False') return -1;
 
####
# III. Convert the image data to a PNG of size 512x512
$im = imagescale(
imagecreatefromstring(
base64_decode(
rawurldecode(
wasKeyValueGet(
"data",
$return
)
)
)
),
512,
512
);
 
####
# VI. Output the Base64 encoded image for AJAX.
ob_start();
imagepng($im);
$png = ob_get_contents();
imagedestroy($im);
ob_end_clean();
 
echo base64_encode($png);
 
?>