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
/**
* @file src/Model/Photo.php
* @brief This file contains the Photo class for database interface
*/
namespace Friendica\Model;
use Friendica\BaseObject;
use Friendica\Core\Cache;
use Friendica\Core\Config;
use Friendica\Core\L10n;
use Friendica\Core\System;
use Friendica\Database\DBA;
use Friendica\Database\DBStructure;
use Friendica\Object\Image;
use Friendica\Util\DateTimeFormat;
use Friendica\Util\Network;
use Friendica\Util\Security;
/**
* Class to handle photo dabatase table
*/
class Photo extends BaseObject
{
/**
* @brief Select rows from the photo table
*
* @param array $fields Array of selected fields, empty for all
* @param array $condition Array of fields for condition
* @param array $params Array of several parameters
*
* @return boolean|array
*
* @see \Friendica\Database\DBA::select
*/
public static function select(array $fields = [], array $condition = [], array $params = [])
{
if (empty($fields)) {
$selected = self::getFields();
}
$r = DBA::select("photo", $fields, $condition, $params);
return DBA::toArray($r);
}
/**
* @brief Retrieve a single record from the photo table
*
* @param array $fields Array of selected fields, empty for all
* @param array $condition Array of fields for condition
* @param array $params Array of several parameters
*
* @return bool|array
*
* @see \Friendica\Database\DBA::select
*/
public static function selectFirst(array $fields = [], array $condition = [], array $params = [])
{
if (empty($fields)) {
$fields = self::getFields();
}
return DBA::selectFirst("photo", $fields, $condition, $params);
}
/**
* @brief Get a single photo given resource id and scale
*
* This method checks for permissions. Returns associative array
* on success, "no sign" image info, if user has no permission,
* false if photo does not exists
*
* @param string $resourceid Rescource ID for the photo
* @param integer $scale Scale of the photo. Defaults to 0
*
* @return boolean|array
*/
public static function getPhoto($resourceid, $scale = 0)
{
$r = self::selectFirst(["uid"], ["resource-id" => $resourceid]);
if ($r===false) return false;
$sql_acl = Security::getPermissionsSQLByUserId($r["uid"]);
$condition = [
"`resource-id` = ? AND `scale` <= ? " . $sql_acl,
$resourceid, $scale
];
$params = [ "order" => ["scale" => true]];
$photo = self::selectFirst([], $condition, $params);
if ($photo === false) {
return self::createPhotoForSystemResource("images/nosign.jpg");
}
return $photo;
}
/**
* @brief Check if photo with given resource id exists
*
* @param string $resourceid Resource ID of the photo
*
* @return boolean
*/
public static function exists($resourceid)
{
return DBA::count("photo", ["resource-id" => $resourceid]) > 0;
}
/**
* @brief Get Image object for given row id. null if row id does not exist
*
* @param integer $id Row id
*
* @return \Friendica\Object\Image
*/
public static function getImageForPhoto($photo)
{
$data = "";
if ($photo["backend-class"] == "") {
// legacy data storage in "data" column
$i = self::selectFirst(["data"], ["id"=>$photo["id"]]);
if ($i===false) {
return null;
}
$data = $i["data"];
} else {
$backendClass = $photo["backend-class"];
$backendRef = $photo["backend-ref"];
$data = $backendClass::get($backendRef);
}
if ($data === "") {
return null;
}
return new Image($data, $photo["type"]);
}
/**
* @brief Return a list of fields that are associated with the photo table
*
* @return array field list
*/
private static function getFields()
{
$allfields = DBStructure::definition(false);
$fields = array_keys($allfields["photo"]["fields"]);
array_splice($fields, array_search("data", $fields), 1);
return $fields;
}
/**
* @brief Construct a photo array for a system resource image
*
* @param string $filename Image file name relative to code root
* @param string $mimetype Image mime type. Defaults to "image/jpeg"
*
* @return array
*/
public static function createPhotoForSystemResource($filename, $mimetype = "image/jpeg")
{
$fields = self::getFields();
$values = array_fill(0, count($fields), "");
$photo = array_combine($fields, $values);
$photo["backend-class"] = "\Friendica\Model\Storage\SystemResource";
$photo["backend-ref"] = $filename;
$photo["type"] = $mimetype;
$photo['cacheable'] = false;
return $photo;
}
/**
* @brief store photo metadata in db and binary in default backend
*
* @param Image $Image image
* @param integer $uid uid
* @param integer $cid cid
* @param integer $rid rid
* @param string $filename filename
* @param string $album album name
* @param integer $scale scale
* @param integer $profile optional, default = 0
* @param string $allow_cid optional, default = ''
* @param string $allow_gid optional, default = ''
* @param string $deny_cid optional, default = ''
* @param string $deny_gid optional, default = ''
* @param string $desc optional, default = ''
*
* @return boolean True on success
*/
public static function store(Image $Image, $uid, $cid, $rid, $filename, $album, $scale, $profile = 0, $allow_cid = '', $allow_gid = '', $deny_cid = '', $deny_gid = '', $desc = '')
{
$photo = DBA::selectFirst('photo', ['guid'], ["`resource-id` = ? AND `guid` != ?", $rid, '']);
if (DBA::isResult($photo)) {
$guid = $photo['guid'];
} else {
$guid = System::createGUID();
}
$existing_photo = DBA::selectFirst('photo', ['id'], ['resource-id' => $rid, 'uid' => $uid, 'contact-id' => $cid, 'scale' => $scale]);
// Get defined storage backend.
// if no storage backend, we use old "data" column in photo table.
$data = "";
$backend_ref = "";
$backend_class = Config::get("storage", "class", "");
if ($backend_class==="") {
$data = $Image->asString();
} else {
$backend_ref = $backend_class::put($Image->asString());
}
$fields = [
'uid' => $uid,
'contact-id' => $cid,
'guid' => $guid,
'resource-id' => $rid,
'created' => DateTimeFormat::utcNow(),
'edited' => DateTimeFormat::utcNow(),
'filename' => basename($filename),
'type' => $Image->getType(),
'album' => $album,
'height' => $Image->getHeight(),
'width' => $Image->getWidth(),
'datasize' => strlen($Image->asString()),
'data' => $data,
'scale' => $scale,
'profile' => $profile,
'allow_cid' => $allow_cid,
'allow_gid' => $allow_gid,
'deny_cid' => $deny_cid,
'deny_gid' => $deny_gid,
'desc' => $desc,
'backend-class' => $backend_class,
'backend-ref' => $backend_ref
];
if (DBA::isResult($existing_photo)) {
$r = DBA::update('photo', $fields, ['id' => $existing_photo['id']]);
} else {
$r = DBA::insert('photo', $fields);
}
return $r;
}
/**
* @param string $image_url Remote URL
* @param integer $uid user id
* @param integer $cid contact id
* @param boolean $quit_on_error optional, default false
* @return array
*/
public static function importProfilePhoto($image_url, $uid, $cid, $quit_on_error = false)
{
$thumb = '';
$micro = '';
$photo = DBA::selectFirst(
'photo', ['resource-id'], ['uid' => $uid, 'contact-id' => $cid, 'scale' => 4, 'album' => 'Contact Photos']
);
if (!empty($photo['resource-id'])) {
$hash = $photo['resource-id'];
} else {
$hash = self::newResource();
}
$photo_failure = false;
$filename = basename($image_url);
$img_str = Network::fetchUrl($image_url, true);
if ($quit_on_error && ($img_str == "")) {
return false;
}
$type = Image::guessType($image_url, true);
$Image = new Image($img_str, $type);
if ($Image->isValid()) {
$Image->scaleToSquare(300);
$r = self::store($Image, $uid, $cid, $hash, $filename, 'Contact Photos', 4);
if ($r === false) {
$photo_failure = true;
}
$Image->scaleDown(80);
$r = self::store($Image, $uid, $cid, $hash, $filename, 'Contact Photos', 5);
if ($r === false) {
$photo_failure = true;
}
$Image->scaleDown(48);
$r = self::store($Image, $uid, $cid, $hash, $filename, 'Contact Photos', 6);
if ($r === false) {
$photo_failure = true;
}
$suffix = '?ts=' . time();
$image_url = System::baseUrl() . '/photo/' . $hash . '-4.' . $Image->getExt() . $suffix;
$thumb = System::baseUrl() . '/photo/' . $hash . '-5.' . $Image->getExt() . $suffix;
$micro = System::baseUrl() . '/photo/' . $hash . '-6.' . $Image->getExt() . $suffix;
// Remove the cached photo
$a = \get_app();
$basepath = $a->getBasePath();
if (is_dir($basepath . "/photo")) {
$filename = $basepath . '/photo/' . $hash . '-4.' . $Image->getExt();
if (file_exists($filename)) {
unlink($filename);
}
$filename = $basepath . '/photo/' . $hash . '-5.' . $Image->getExt();
if (file_exists($filename)) {
unlink($filename);
}
$filename = $basepath . '/photo/' . $hash . '-6.' . $Image->getExt();
if (file_exists($filename)) {
unlink($filename);
}
}
} else {
$photo_failure = true;
}
if ($photo_failure && $quit_on_error) {
return false;
}
if ($photo_failure) {
$image_url = System::baseUrl() . '/images/person-300.jpg';
$thumb = System::baseUrl() . '/images/person-80.jpg';
$micro = System::baseUrl() . '/images/person-48.jpg';
}
return [$image_url, $thumb, $micro];
}
/**
* @param string $exifCoord coordinate
* @param string $hemi hemi
* @return float
*/
public static function getGps($exifCoord, $hemi)
{
$degrees = count($exifCoord) > 0 ? self::gps2Num($exifCoord[0]) : 0;
$minutes = count($exifCoord) > 1 ? self::gps2Num($exifCoord[1]) : 0;
$seconds = count($exifCoord) > 2 ? self::gps2Num($exifCoord[2]) : 0;
$flip = ($hemi == 'W' || $hemi == 'S') ? -1 : 1;
return floatval($flip * ($degrees + ($minutes / 60) + ($seconds / 3600)));
}
/**
* @param string $coordPart coordPart
* @return float
*/
private static function gps2Num($coordPart)
{
$parts = explode('/', $coordPart);
if (count($parts) <= 0) {
return 0;
}
if (count($parts) == 1) {
return $parts[0];
}
return floatval($parts[0]) / floatval($parts[1]);
}
/**
* @brief Fetch the photo albums that are available for a viewer
*
* The query in this function is cost intensive, so it is cached.
*
* @param int $uid User id of the photos
* @param bool $update Update the cache
*
* @return array Returns array of the photo albums
*/
public static function getAlbums($uid, $update = false)
{
$sql_extra = Security::getPermissionsSQLByUserId($uid);
$key = "photo_albums:".$uid.":".local_user().":".remote_user();
$albums = Cache::get($key);
if (is_null($albums) || $update) {
if (!Config::get('system', 'no_count', false)) {
/// @todo This query needs to be renewed. It is really slow
// At this time we just store the data in the cache
$albums = q("SELECT COUNT(DISTINCT `resource-id`) AS `total`, `album`, ANY_VALUE(`created`) AS `created`
FROM `photo`
WHERE `uid` = %d AND `album` != '%s' AND `album` != '%s' $sql_extra
GROUP BY `album` ORDER BY `created` DESC",
intval($uid),
DBA::escape('Contact Photos'),
DBA::escape(L10n::t('Contact Photos'))
);
} else {
// This query doesn't do the count and is much faster
$albums = q("SELECT DISTINCT(`album`), '' AS `total`
FROM `photo` USE INDEX (`uid_album_scale_created`)
WHERE `uid` = %d AND `album` != '%s' AND `album` != '%s' $sql_extra",
intval($uid),
DBA::escape('Contact Photos'),
DBA::escape(L10n::t('Contact Photos'))
);
}
Cache::set($key, $albums, Cache::DAY);
}
return $albums;
}
/**
* @param int $uid User id of the photos
* @return void
*/
public static function clearAlbumCache($uid)
{
$key = "photo_albums:".$uid.":".local_user().":".remote_user();
Cache::set($key, null, Cache::DAY);
}
/**
* Generate a unique photo ID.
*
* @return string
*/
public static function newResource()
{
return system::createGUID(32, false);
}
}