function encode_btc($btc)
{
$btc = chr($btc['version']) . pack('H*', $btc['hash']);
if (strlen($btc) != 21) {
return false;
}
$cksum = substr(hash_sha256(hash_sha256($btc)), 0, 4);
return base58_encode($btc . $cksum);
}
function getPhotos($id, $per_page, $safe = NULL)
{
global $flickrBase, $accounts;
$xml = simplexml_load_file($flickrBase . 'flickr.people.getPublicPhotos&api_key=' . $accounts['flickr']['apikey'] . '&user_id=' . $id . '&per_page=' . $per_page . '&safe_search=' . $safe);
$array = array();
// array to hold pictures
foreach ($xml->photos->photo as $photo) {
// We create an array containing each url, photo title, link (in that order)
//http://farm{farm-id}.static.flickr.com/{server-id}/{id}_{secret}.jpg <- format to get the image from flickr
$url = 'http://farm' . $photo['farm'] . '.static.flickr.com/' . $photo['server'] . '/' . $photo['id'] . '_' . $photo['secret'] . '.jpg';
// url of photo
$link = 'http://flic.kr/p/' . base58_encode($photo['id']);
// clickable link that goes to the photo
$item = array("url" => $url, "title" => $photo['title'], "link" => $link);
// each photo item
array_push($array, $item);
// put each photo item into array
}
return $array;
}
function Shorten($link)
{
preg_match("#/(\\d+)/#", $link, $matches);
return 'http://flic.kr/p/' . base58_encode($matches[1]);
}
/**
* Constructor
* @since Version 3.8.7
* @param int $id
*/
public function __construct($id = NULL)
{
parent::__construct();
$this->Module = new Module("images");
if (filter_var($id, FILTER_VALIDATE_INT)) {
/**
* Record this in the debug log
*/
debug_recordInstance(__CLASS__);
$this->mckey = sprintf("railpage:image=%d", $id);
if (!($row = getMemcacheObject($this->mckey))) {
$query = "SELECT i.id, i.provider, i.photo_id, i.modified, i.meta, i.lat, i.lon FROM image AS i WHERE i.id = ?";
$row = $this->db->fetchRow($query, $id);
$row['meta'] = json_decode($row['meta'], true);
setMemcacheObject($this->mckey, $row, strtotime("+24 hours"));
}
$this->id = $id;
$this->provider = $row['provider'];
$this->photo_id = $row['photo_id'];
$this->Date = new DateTime($row['modified']);
$this->title = !empty($row['meta']['title']) ? format_topictitle($row['meta']['title']) : "Untitled";
$this->description = $row['meta']['description'];
$this->sizes = $row['meta']['sizes'];
$this->links = $row['meta']['links'];
$this->meta = $row['meta']['data'];
$this->url = new Url("/image?id=" . $this->id);
if ($this->provider == "rpoldgallery") {
$GalleryImage = new \Railpage\Gallery\Image($this->photo_id);
$this->url->source = $GalleryImage->url->url;
if (empty($this->meta['source'])) {
$this->meta['source'] = $this->url->source;
}
}
/**
* Normalize some sizes
*/
if (count($this->sizes)) {
if (!isset($this->sizes['thumb'])) {
foreach ($this->sizes as $size) {
if ($size['width'] >= 280 && $size['height'] >= 150) {
$this->sizes['thumb'] = $size;
break;
}
}
}
if (!isset($this->sizes['small'])) {
foreach ($this->sizes as $size) {
if ($size['width'] >= 500 && $size['height'] >= 281) {
$this->sizes['small'] = $size;
break;
}
}
}
$width = 0;
foreach ($this->sizes as $size) {
if ($size['width'] > $width) {
$this->sizes['largest'] = $size;
$width = $size['width'];
}
}
foreach ($this->sizes as $size) {
if ($size['width'] >= 1920) {
$this->sizes['fullscreen'] = $size;
break;
}
}
foreach ($this->sizes as $size) {
if ($size['width'] > 1024 && $size['width'] <= 1920) {
$this->sizes['larger'] = $size;
break;
}
}
foreach ($this->sizes as $size) {
if ($size['width'] == 1024) {
$this->sizes['large'] = $size;
break;
}
}
foreach ($this->sizes as $size) {
if ($size['width'] == 800) {
$this->sizes['medium'] = $size;
break;
}
}
}
if (isset($row['meta']['author'])) {
$this->author = json_decode(json_encode($row['meta']['author']));
if (isset($this->author->railpage_id)) {
$this->author->User = new User($this->author->railpage_id);
}
} else {
$this->populate(true);
}
if (round($row['lat'], 3) != "0.000" && round($row['lon'], 3) != "0.000") {
try {
$this->Place = new Place($row['lat'], $row['lon']);
} catch (Exception $e) {
// Throw it away. Don't care.
}
}
/**
* Set the source URL
*/
if (isset($this->meta['source'])) {
$this->source = $this->meta['source'];
} else {
switch ($this->provider) {
case "flickr":
$this->source = "https://flic.kr/p/" . base58_encode($this->photo_id);
}
}
$this->getJSON();
}
}
/**
* Populate this image object
*
* @since Version 3.9.1
* @return void
*
* @param int $option
*/
private function load($option = null)
{
Debug::RecordInstance();
$this->mckey = sprintf("railpage:image=%d", $this->id);
if (defined("NOREDIS") && NOREDIS == true || !($row = $this->Redis->fetch($this->mckey))) {
Debug::LogCLI("Fetching data for " . $this->id . " from database");
$query = "SELECT i.title, i.description, i.id, i.provider, i.photo_id, i.modified, i.meta, i.lat, i.lon, i.user_id, i.geoplace, i.captured FROM image AS i WHERE i.id = ?";
$row = $this->db->fetchRow($query, $this->id);
$row['meta'] = json_decode($row['meta'], true);
$this->Redis->save($this->mckey, $row, strtotime("+24 hours"));
}
$this->populateFromArray($row);
if ($this->provider == "rpoldgallery") {
$GalleryImage = new \Railpage\Gallery\Image($this->photo_id);
$this->url->source = $GalleryImage->url->url;
if (empty($this->meta['source'])) {
$this->meta['source'] = $this->url->source;
}
}
if (!isset($row['user_id'])) {
$row['user_id'] = 0;
}
/**
* Update the database row
*/
if ((!isset($row['title']) || empty($row['title']) || is_null($row['title'])) && !empty($this->title) || (!isset($row['description']) || empty($row['description']) || is_null($row['description'])) && !empty($this->description)) {
$row['title'] = $this->title;
$row['description'] = $this->description;
$this->Redis->save($this->mckey, $row, strtotime("+24 hours"));
$this->commit();
}
/**
* Load the author. If we don't know who it is, attempt to re-populate the data
*/
if (isset($row['meta']['author'])) {
$this->author = json_decode(json_encode($row['meta']['author']));
if (isset($this->author->railpage_id) && $row['user_id'] === 0) {
$row['user_id'] == $this->author->railpage_id;
}
if (filter_var($row['user_id'], FILTER_VALIDATE_INT)) {
$this->author->User = UserFactory::CreateUser($row['user_id']);
}
} else {
Debug::LogCLI("No author found in local cache - refreshing from " . $this->provider);
Debug::LogEvent("No author found in local cache - refreshing from " . $this->provider);
$this->populate(true, $option);
}
/**
* Unless otherwise instructed load the places object if lat/lng are present
*/
if ($option != Images::OPT_NOPLACE && round($row['lat'], 3) != "0.000" && round($row['lon'], 3) != "0.000") {
try {
$this->Place = Place::Factory($row['lat'], $row['lon']);
} catch (Exception $e) {
// Throw it away. Don't care.
}
}
/**
* Set the source URL
*/
if (isset($this->meta['source'])) {
$this->source = $this->meta['source'];
} else {
switch ($this->provider) {
case "flickr":
if (function_exists("base58_encode")) {
$this->source = "https://flic.kr/p/" . base58_encode($this->photo_id);
}
}
}
/**
* Create an array/JSON object
*/
$this->getJSON();
}
function base58check_encode($hash160)
{
$hash = "" . $hash160;
$eccfull = hash('sha256', hash('sha256', $hash, true), true);
$ecc = substr($eccfull, 0, 4);
$preaddr = $hash . $ecc;
$bin2hex = bchexdec(bin2hex($preaddr));
$encoded = base58_encode($bin2hex);
$encoded = '1' . $encoded;
return $encoded;
}
