Friendica Communications Platform (please note that this is a clone of the repository at github, issues are handled there) https://friendi.ca
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<?php
use Friendica\App;
require_once('include/security.php');
require_once('include/Photo.php');
function photo_init(App $a) {
global $_SERVER;
$prvcachecontrol = false;
$file = "";
switch ($a->argc) {
case 4:
$person = $a->argv[3];
$customres = intval($a->argv[2]);
$type = $a->argv[1];
break;
case 3:
$person = $a->argv[2];
$type = $a->argv[1];
break;
case 2:
$photo = $a->argv[1];
$file = $photo;
break;
case 1:
default:
killme();
// NOTREACHED
}
if (isset($_SERVER['HTTP_IF_MODIFIED_SINCE'])) {
header('HTTP/1.1 304 Not Modified');
header("Last-Modified: " . gmdate("D, d M Y H:i:s", time()) . " GMT");
header('Etag: '.$_SERVER['HTTP_IF_NONE_MATCH']);
header("Expires: " . gmdate("D, d M Y H:i:s", time() + (31536000)) . " GMT");
header("Cache-Control: max-age=31536000");
if (function_exists('header_remove')) {
header_remove('Last-Modified');
header_remove('Expires');
header_remove('Cache-Control');
}
exit;
}
$default = 'images/person-175.jpg';
if (isset($type)) {
/**
* Profile photos
*/
switch ($type) {
case 'profile':
case 'custom':
$resolution = 4;
break;
case 'micro':
$resolution = 6;
$default = 'images/person-48.jpg';
break;
case 'avatar':
default:
$resolution = 5;
$default = 'images/person-80.jpg';
break;
}
$uid = str_replace(array('.jpg', '.png', '.gif'), array('', '', ''), $person);
foreach (Photo::supportedTypes() AS $m => $e) {
$uid = str_replace('.'.$e, '', $uid);
}
$r = q("SELECT * FROM `photo` WHERE `scale` = %d AND `uid` = %d AND `profile` = 1 LIMIT 1",
intval($resolution),
intval($uid)
);
if (dbm::is_result($r)) {
$data = $r[0]['data'];
$mimetype = $r[0]['type'];
}
if (empty($data)) {
$data = file_get_contents($default);
$mimetype = 'image/jpeg';
}
} else {
/**
* Other photos
*/
$resolution = 0;
$photo = str_replace(array('.jpg', '.png', '.gif'), array('', '', ''), $photo);
foreach (Photo::supportedTypes() AS $m => $e) {
$photo = str_replace('.'.$e, '', $photo);
}
if (substr($photo, -2, 1) == '-') {
$resolution = intval(substr($photo, -1, 1));
$photo = substr($photo, 0, -2);
}
// check if the photo exists and get the owner of the photo
$r = q("SELECT `uid` FROM `photo` WHERE `resource-id` = '%s' LIMIT 1",
dbesc($photo),
intval($resolution)
);
if (dbm::is_result($r)) {
$sql_extra = permissions_sql($r[0]['uid']);
// Now we'll see if we can access the photo
$r = q("SELECT * FROM `photo` WHERE `resource-id` = '%s' AND `scale` <= %d $sql_extra ORDER BY scale DESC LIMIT 1",
dbesc($photo),
intval($resolution)
);
$public = (dbm::is_result($r)) && ($r[0]['allow_cid'] == '') && ($r[0]['allow_gid'] == '') && ($r[0]['deny_cid'] == '') && ($r[0]['deny_gid'] == '');
if (dbm::is_result($r)) {
$resolution = $r[0]['scale'];
$data = $r[0]['data'];
$mimetype = $r[0]['type'];
} else {
// The picure exists. We already checked with the first query.
// obviously, this is not an authorized viev!
$data = file_get_contents('images/nosign.jpg');
$mimetype = 'image/jpeg';
$prvcachecontrol = true;
$public = false;
}
}
}
if (empty($data)) {
if (isset($resolution)) {
switch ($resolution) {
case 4:
$data = file_get_contents('images/person-175.jpg');
$mimetype = 'image/jpeg';
break;
case 5:
$data = file_get_contents('images/person-80.jpg');
$mimetype = 'image/jpeg';
break;
case 6:
$data = file_get_contents('images/person-48.jpg');
$mimetype = 'image/jpeg';
break;
default:
killme();
// NOTREACHED
break;
}
}
}
// Resize only if its not a GIF and it is supported by the library
if (($mimetype != "image/gif") && in_array($mimetype, Photo::supportedTypes())) {
$ph = new Photo($data, $mimetype);
if ($ph->is_valid()) {
if (isset($customres) && $customres > 0 && $customres < 500) {
$ph->scaleImageSquare($customres);
}
$data = $ph->imageString();
$mimetype = $ph->getType();
}
}
if (function_exists('header_remove')) {
header_remove('Pragma');
header_remove('pragma');
}
header("Content-type: ".$mimetype);
if ($prvcachecontrol) {
// it is a private photo that they have no permission to view.
// tell the browser not to cache it, in case they authenticate
// and subsequently have permission to see it
header("Cache-Control: no-store, no-cache, must-revalidate");
} else {
header("Last-Modified: " . gmdate("D, d M Y H:i:s", time()) . " GMT");
header('Etag: "'.md5($data).'"');
header("Expires: " . gmdate("D, d M Y H:i:s", time() + (31536000)) . " GMT");
header("Cache-Control: max-age=31536000");
}
echo $data;
// If the photo is public and there is an existing photo directory store the photo there
if ($public and ($file != "")) {
// If the photo path isn't there, try to create it
$basepath = $a->get_basepath();
if (!is_dir($basepath."/photo")) {
if (is_writable($basepath)) {
mkdir($basepath."/photo");
}
}
if (is_dir($basepath."/photo")) {
file_put_contents($basepath."/photo/".$file, $data);
}
}
killme();
// NOTREACHED
}