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\Core\StorageManager;
use Friendica\Database\DBA;
use Friendica\Database\DBStructure;
use Friendica\Model\Storage\IStorage;
use Friendica\Object\Image;
use Friendica\Util\DateTimeFormat;
use Friendica\Util\Network;
use Friendica\Util\Security;
require_once "include/dba.php";
/**
* 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 $conditions Array of fields for conditions
* @param array $params Array of several parameters
*
* @return boolean|array
*
* @throws \Exception
* @see \Friendica\Database\DBA::select
*/
public static function select(array $fields = [], array $conditions = [], array $params = [])
{
if (empty($fields)) {
$fields = self::getFields();
}
$r = DBA::select("photo", $fields, $conditions, $params);
return DBA::toArray($r);
}
/**
* @brief Retrieve a single record from the photo table
*
* @param array $fields Array of selected fields, empty for all
* @param array $conditions Array of fields for conditions
* @param array $params Array of several parameters
*
* @return bool|array
*
* @throws \Exception
* @see \Friendica\Database\DBA::select
*/
public static function selectFirst(array $fields = [], array $conditions = [], array $params = [])
{
if (empty($fields)) {
$fields = self::getFields();
}
return DBA::selectFirst("photo", $fields, $conditions, $params);
}
/**
* @brief Get photos for user id
*
* @param integer $uid User id
* @param string $resourceid Rescource ID of the photo
* @param array $conditions Array of fields for conditions
* @param array $params Array of several parameters
*
* @return bool|array
*
* @throws \Exception
* @see \Friendica\Database\DBA::select
*/
public static function getPhotosForUser($uid, $resourceid, array $conditions = [], array $params = [])
{
$conditions["resource-id"] = $resourceid;
$conditions["uid"] = $uid;
return self::select([], $conditions, $params);
}
/**
* @brief Get a photo for user id
*
* @param integer $uid User id
* @param string $resourceid Rescource ID of the photo
* @param integer $scale Scale of the photo. Defaults to 0
* @param array $conditions Array of fields for conditions
* @param array $params Array of several parameters
*
* @return bool|array
*
* @throws \Exception
* @see \Friendica\Database\DBA::select
*/
public static function getPhotoForUser($uid, $resourceid, $scale = 0, array $conditions = [], array $params = [])
{
$conditions["resource-id"] = $resourceid;
$conditions["uid"] = $uid;
$conditions["scale"] = $scale;
return self::selectFirst([], $conditions, $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 of the photo
* @param integer $scale Scale of the photo. Defaults to 0
*
* @return boolean|array
* @throws \Exception
*/
public static function getPhoto($resourceid, $scale = 0)
{
$r = self::selectFirst(["uid"], ["resource-id" => $resourceid]);
if ($r === false) {
return false;
}
$sql_acl = Security::getPermissionsSQLByUserId($r["uid"]);
$conditions = [
"`resource-id` = ? AND `scale` <= ? " . $sql_acl,
$resourceid, $scale
];
$params = ["order" => ["scale" => true]];
$photo = self::selectFirst([], $conditions, $params);
return $photo;
}
/**
* @brief Check if photo with given conditions exists
*
* @param array $conditions Array of extra conditions
*
* @return boolean
* @throws \Exception
*/
public static function exists(array $conditions)
{
return DBA::exists("photo", $conditions);
}
/**
* @brief Get Image object for given row id. null if row id does not exist
*
* @param array $photo Photo data. Needs at least 'id', 'type', 'backend-class', 'backend-ref'
*
* @return \Friendica\Object\Image
* @throws \Friendica\Network\HTTPException\InternalServerErrorException
* @throws \ImagickException
*/
public static function getImageForPhoto(array $photo)
{
if ($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
* @throws \Exception
*/
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 $mimetype Image mime type. Defaults to "image/jpeg"
*
* @return array
* @throws \Exception
*/
public static function createPhotoForSystemResource($filename, $mimetype = "image/jpeg")
{
$fields = self::getFields();
$values = array_fill(0, count($fields), "");
$photo = array_combine($fields, $values);
$photo["backend-class"] = Storage\SystemResource::class;
$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 object with data
* @param integer $uid User ID
* @param integer $cid Contact ID
* @param integer $rid Resource ID
* @param string $filename Filename
* @param string $album Album name
* @param integer $scale Scale
* @param integer $profile Is a profile image? optional, default = 0
* @param string $allow_cid Permissions, allowed contacts. optional, default = ""
* @param string $allow_gid Permissions, allowed groups. optional, default = ""
* @param string $deny_cid Permissions, denied contacts.optional, default = ""
* @param string $deny_gid Permissions, denied greoup.optional, default = ""
* @param string $desc Photo caption. optional, default = ""
*
* @return boolean True on success
* @throws \Friendica\Network\HTTPException\InternalServerErrorException
*/
public static function store(Image $Image, $uid, $cid, $rid, $filename, $album, $scale, $profile = 0, $allow_cid = "", $allow_gid = "", $deny_cid = "", $deny_gid = "", $desc = "")
{
$photo = self::selectFirst(["guid"], ["`resource-id` = ? AND `guid` != ?", $rid, ""]);
if (DBA::isResult($photo)) {
$guid = $photo["guid"];
} else {
$guid = System::createGUID();
}
$existing_photo = self::selectFirst(["id", "created", "backend-class", "backend-ref"], ["resource-id" => $rid, "uid" => $uid, "contact-id" => $cid, "scale" => $scale]);
$created = DateTimeFormat::utcNow();
if (DBA::isResult($existing_photo)) {
$created = $existing_photo["created"];
}
// Get defined storage backend.
// if no storage backend, we use old "data" column in photo table.
// if is an existing photo, reuse same backend
$data = "";
$backend_ref = "";
/** @var IStorage $backend_class */
if (DBA::isResult($existing_photo)) {
$backend_ref = (string)$existing_photo["backend-ref"];
$backend_class = (string)$existing_photo["backend-class"];
} else {
$backend_class = StorageManager::getBackend();
}
if ($backend_class === "") {
$data = $Image->asString();
} else {
$backend_ref = $backend_class::put($Image->asString(), $backend_ref);
}
$fields = [
"uid" => $uid,
"contact-id" => $cid,
"guid" => $guid,
"resource-id" => $rid,
"created" => $created,
"edited" => DateTimeFormat::utcNow(),
"filename" => basename($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;
}
/**
* @brief Delete info from table and data from storage
*
* @param array $conditions Field condition(s)
* @param array $options Options array, Optional
*
* @return boolean
*
* @throws \Exception
* @see \Friendica\Database\DBA::delete
*/
public static function delete(array $conditions, array $options = [])
{
// get photo to delete data info
$photos = self::select(["backend-class","backend-ref"], $conditions);
foreach($photos as $photo) {
/** @var IStorage $backend_class */
$backend_class = (string)$photo["backend-class"];
if ($backend_class !== "") {
$backend_class::delete($photo["backend-ref"]);
}
}
return DBA::delete("photo", $conditions, $options);
}
/**
* @brief Update a photo
*
* @param array $fields Contains the fields that are updated
* @param array $conditions Condition array with the key values
* @param Image $img Image to update. Optional, default null.
* @param array|boolean $old_fields Array with the old field values that are about to be replaced (true = update on duplicate)
*
* @return boolean Was the update successfull?
*
* @throws \Friendica\Network\HTTPException\InternalServerErrorException
* @see \Friendica\Database\DBA::update
*/
public static function update($fields, $conditions, Image $img = null, array $old_fields = [])
{
if (!is_null($img)) {
// get photo to update
$photos = self::select(["backend-class","backend-ref"], $conditions);
foreach($photos as $photo) {
/** @var IStorage $backend_class */
$backend_class = (string)$photo["backend-class"];
if ($backend_class !== "") {
$fields["backend-ref"] = $backend_class::put($img->asString(), $photo["backend-ref"]);
} else {
$fields["data"] = $img->asString();
}
}
$fields['updated'] = DateTimeFormat::utcNow();
}
$fields['edited'] = DateTimeFormat::utcNow();
return DBA::update("photo", $fields, $conditions, $old_fields);
}
/**
* @param string $image_url Remote URL
* @param integer $uid user id
* @param integer $cid contact id
* @param boolean $quit_on_error optional, default false
* @return array
* @throws \Friendica\Network\HTTPException\InternalServerErrorException
* @throws \ImagickException
*/
public static function importProfilePhoto($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 array $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 $update Update the cache
*
* @return array Returns array of the photo albums
* @throws \Friendica\Network\HTTPException\InternalServerErrorException
*/
public static function getAlbums($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 $uid User id of the photos
* @return void
* @throws \Exception
*/
public static function clearAlbumCache($uid)
{
$key = "photo_albums:".$uid.":".local_user().":".remote_user();
Cache::set($key, null, Cache::DAY);
}
/**
* Generate a unique photo ID.
*
* @return string
* @throws \Exception
*/
public static function newResource()
{
return System::createGUID(32, false);
}
}