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friendica/src/Model/Post/Media.php

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<?php
/**
* @copyright Copyright (C) 2010-2023, the Friendica project
*
* @license GNU AGPL version 3 or any later version
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as
* published by the Free Software Foundation, either version 3 of the
* License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <https://www.gnu.org/licenses/>.
*
*/
namespace Friendica\Model\Post;
use Friendica\Content\PageInfo;
use Friendica\Content\Text\BBCode;
use Friendica\Core\Logger;
use Friendica\Core\Protocol;
use Friendica\Core\System;
use Friendica\Database\Database;
use Friendica\Database\DBA;
use Friendica\DI;
use Friendica\Model\Contact;
use Friendica\Model\Item;
use Friendica\Model\ItemURI;
use Friendica\Model\Photo;
use Friendica\Model\Post;
use Friendica\Network\HTTPClient\Client\HttpClientAccept;
use Friendica\Network\HTTPClient\Client\HttpClientOptions;
use Friendica\Util\Images;
use Friendica\Util\Network;
use Friendica\Util\ParseUrl;
use Friendica\Util\Proxy;
use Friendica\Util\Strings;
/**
* Class Media
*
* This Model class handles media interactions.
* This tables stores medias (images, videos, audio files) related to posts.
*/
class Media
{
const UNKNOWN = 0;
const IMAGE = 1;
const VIDEO = 2;
const AUDIO = 3;
const TEXT = 4;
const APPLICATION = 5;
const TORRENT = 16;
const HTML = 17;
const XML = 18;
const PLAIN = 19;
const ACTIVITY = 20;
const ACCOUNT = 21;
const DOCUMENT = 128;
/**
* Insert a post-media record
*
* @param array $media
* @param bool $force
* @return bool
*/
public static function insert(array $media, bool $force = false): bool
{
if (empty($media['url']) || empty($media['uri-id']) || !isset($media['type'])) {
Logger::warning('Incomplete media data', ['media' => $media]);
return false;
}
if (DBA::exists('post-media', ['uri-id' => $media['uri-id'], 'preview' => $media['url']])) {
Logger::info('Media already exists as preview', ['uri-id' => $media['uri-id'], 'url' => $media['url'], 'callstack' => System::callstack()]);
return false;
}
// "document" has got the lowest priority. So when the same file is both attached as document
// and embedded as picture then we only store the picture or replace the document
$found = DBA::selectFirst('post-media', ['type'], ['uri-id' => $media['uri-id'], 'url' => $media['url']]);
if (!$force && !empty($found) && (($found['type'] != self::DOCUMENT) || ($media['type'] == self::DOCUMENT))) {
Logger::info('Media already exists', ['uri-id' => $media['uri-id'], 'url' => $media['url'], 'callstack' => System::callstack()]);
return false;
}
if (!ItemURI::exists($media['uri-id'])) {
Logger::info('Media referenced URI ID not found', ['uri-id' => $media['uri-id'], 'url' => $media['url'], 'callstack' => System::callstack()]);
return false;
}
$media = self::unsetEmptyFields($media);
$media = DI::dbaDefinition()->truncateFieldsForTable('post-media', $media);
// We are storing as fast as possible to avoid duplicated network requests
// when fetching additional information for pictures and other content.
$result = DBA::insert('post-media', $media, Database::INSERT_UPDATE);
Logger::info('Stored media', ['result' => $result, 'media' => $media, 'callstack' => System::callstack()]);
$stored = $media;
$media = self::fetchAdditionalData($media);
$media = self::unsetEmptyFields($media);
$media = DI::dbaDefinition()->truncateFieldsForTable('post-media', $media);
if (array_diff_assoc($media, $stored)) {
$result = DBA::insert('post-media', $media, Database::INSERT_UPDATE);
Logger::info('Updated media', ['result' => $result, 'media' => $media]);
} else {
Logger::info('Nothing to update', ['media' => $media]);
}
return $result;
}
/**
* Remove empty media fields
*
* @param array $media
* @return array cleaned media array
*/
private static function unsetEmptyFields(array $media): array
{
$fields = ['mimetype', 'height', 'width', 'size', 'preview', 'preview-height', 'preview-width', 'blurhash', 'description'];
foreach ($fields as $field) {
if (empty($media[$field])) {
unset($media[$field]);
}
}
return $media;
}
/**
* Copy attachments from one uri-id to another
*
* @param integer $from_uri_id
* @param integer $to_uri_id
* @return void
*/
public static function copy(int $from_uri_id, int $to_uri_id)
{
$attachments = self::getByURIId($from_uri_id);
foreach ($attachments as $attachment) {
$attachment['uri-id'] = $to_uri_id;
self::insert($attachment);
}
}
/**
* Creates the "[attach]" element from the given attributes
*
* @param string $href
* @param integer $length
* @param string $type
* @param string $title
* @return string "[attach]" element
*/
public static function getAttachElement(string $href, int $length, string $type, string $title = ''): string
{
$media = self::fetchAdditionalData(['type' => self::DOCUMENT, 'url' => $href,
'size' => $length, 'mimetype' => $type, 'description' => $title]);
return '[attach]href="' . $media['url'] . '" length="' . $media['size'] .
'" type="' . $media['mimetype'] . '" title="' . $media['description'] . '"[/attach]';
}
/**
* Fetch additional data for the provided media array
*
* @param array $media
* @return array media array with additional data
*/
public static function fetchAdditionalData(array $media): array
{
if (Network::isLocalLink($media['url'])) {
$media = self::fetchLocalData($media);
}
// Fetch the mimetype or size if missing.
if (Network::isValidHttpUrl($media['url']) && (empty($media['mimetype']) || empty($media['size']))) {
$timeout = DI::config()->get('system', 'xrd_timeout');
$curlResult = DI::httpClient()->head($media['url'], [HttpClientOptions::TIMEOUT => $timeout]);
// Workaround for systems that can't handle a HEAD request
if (!$curlResult->isSuccess() && ($curlResult->getReturnCode() == 405)) {
$curlResult = DI::httpClient()->get($media['url'], HttpClientAccept::DEFAULT, [HttpClientOptions::TIMEOUT => $timeout]);
}
if ($curlResult->isSuccess()) {
if (empty($media['mimetype'])) {
$media['mimetype'] = $curlResult->getHeader('Content-Type')[0] ?? '';
}
if (empty($media['size'])) {
$media['size'] = (int)($curlResult->getHeader('Content-Length')[0] ?? 0);
}
} else {
Logger::notice('Could not fetch head', ['media' => $media]);
}
}
$filetype = !empty($media['mimetype']) ? strtolower(current(explode('/', $media['mimetype']))) : '';
if (($media['type'] == self::IMAGE) || ($filetype == 'image')) {
$imagedata = Images::getInfoFromURLCached($media['url']);
if ($imagedata) {
$media['mimetype'] = $imagedata['mime'];
$media['size'] = $imagedata['size'];
$media['width'] = $imagedata[0];
$media['height'] = $imagedata[1];
$media['blurhash'] = $imagedata['blurhash'] ?? null;
} else {
Logger::notice('No image data', ['media' => $media]);
}
if (!empty($media['preview'])) {
$imagedata = Images::getInfoFromURLCached($media['preview']);
if ($imagedata) {
$media['preview-width'] = $imagedata[0];
$media['preview-height'] = $imagedata[1];
}
}
}
if ($media['type'] != self::DOCUMENT) {
$media = self::addType($media);
}
if (in_array($media['type'], [self::TEXT, self::APPLICATION, self::HTML, self::XML, self::PLAIN])) {
$media = self::addActivity($media);
}
if (in_array($media['type'], [self::TEXT, self::APPLICATION, self::HTML, self::XML, self::PLAIN])) {
$media = self::addAccount($media);
}
if ($media['type'] == self::HTML) {
$media = self::addPage($media);
}
return $media;
}
/**
* Adds the activity type if the media entry is linked to an activity
*
* @param array $media
* @return array
*/
private static function addActivity(array $media): array
{
$id = Item::fetchByLink($media['url']);
if (empty($id)) {
return $media;
}
$item = Post::selectFirst([], ['id' => $id, 'network' => Protocol::FEDERATED]);
if (empty($item['id'])) {
Logger::debug('Not a federated activity', ['id' => $id, 'uri-id' => $media['uri-id'], 'url' => $media['url']]);
return $media;
}
if (!empty($item['plink']) && Strings::compareLink($item['plink'], $media['url']) &&
parse_url($item['plink'], PHP_URL_HOST) != parse_url($item['uri'], PHP_URL_HOST)) {
Logger::debug('Not a link to an activity', ['uri-id' => $media['uri-id'], 'url' => $media['url'], 'plink' => $item['plink'], 'uri' => $item['uri']]);
return $media;
}
if (in_array($item['network'], [Protocol::ACTIVITYPUB, Protocol::DFRN])) {
$media['mimetype'] = 'application/activity+json';
} elseif ($item['network'] == Protocol::DIASPORA) {
$media['mimetype'] = 'application/xml';
}
$contact = Contact::getById($item['author-id'], ['avatar', 'gsid']);
if (!empty($contact['gsid'])) {
$gserver = DBA::selectFirst('gserver', ['url', 'site_name'], ['id' => $contact['gsid']]);
}
$media['type'] = self::ACTIVITY;
$media['media-uri-id'] = $item['uri-id'];
$media['height'] = null;
$media['width'] = null;
$media['preview'] = null;
$media['preview-height'] = null;
$media['preview-width'] = null;
$media['blurhash'] = null;
$media['description'] = $item['body'];
$media['name'] = $item['title'];
$media['author-url'] = $item['author-link'];
$media['author-name'] = $item['author-name'];
$media['author-image'] = $contact['avatar'] ?? $item['author-avatar'];
$media['publisher-url'] = $gserver['url'] ?? null;
$media['publisher-name'] = $gserver['site_name'] ?? null;
$media['publisher-image'] = null;
Logger::debug('Activity detected', ['uri-id' => $media['uri-id'], 'url' => $media['url'], 'plink' => $item['plink'], 'uri' => $item['uri']]);
return $media;
}
/**
* Adds the account type if the media entry is linked to an account
*
* @param array $media
* @return array
*/
private static function addAccount(array $media): array
{
$contact = Contact::getByURL($media['url'], false);
if (empty($contact) || ($contact['network'] == Protocol::PHANTOM)) {
return $media;
}
if (in_array($contact['network'], [Protocol::ACTIVITYPUB, Protocol::DFRN])) {
$media['mimetype'] = 'application/activity+json';
}
if (!empty($contact['gsid'])) {
$gserver = DBA::selectFirst('gserver', ['url', 'site_name'], ['id' => $contact['gsid']]);
}
$media['type'] = self::ACCOUNT;
$media['media-uri-id'] = $contact['uri-id'];
$media['height'] = null;
$media['width'] = null;
$media['preview'] = null;
$media['preview-height'] = null;
$media['preview-width'] = null;
$media['blurhash'] = null;
$media['description'] = $contact['about'];
$media['name'] = $contact['name'];
$media['author-url'] = $contact['url'];
$media['author-name'] = $contact['name'];
$media['author-image'] = $contact['avatar'];
$media['publisher-url'] = $gserver['url'] ?? null;
$media['publisher-name'] = $gserver['site_name'] ?? null;
$media['publisher-image'] = null;
Logger::debug('Account detected', ['uri-id' => $media['uri-id'], 'url' => $media['url'], 'uri' => $contact['url']]);
return $media;
}
/**
* Add page infos for HTML entries
*
* @param array $media
* @return array
*/
private static function addPage(array $media): array
{
$data = ParseUrl::getSiteinfoCached($media['url'], false);
$media['preview'] = $data['images'][0]['src'] ?? null;
$media['preview-height'] = $data['images'][0]['height'] ?? null;
$media['preview-width'] = $data['images'][0]['width'] ?? null;
$media['blurhash'] = $data['images'][0]['blurhash'] ?? null;
$media['description'] = $data['text'] ?? null;
$media['name'] = $data['title'] ?? null;
$media['author-url'] = $data['author_url'] ?? null;
$media['author-name'] = $data['author_name'] ?? null;
$media['author-image'] = $data['author_img'] ?? null;
$media['publisher-url'] = $data['publisher_url'] ?? null;
$media['publisher-name'] = $data['publisher_name'] ?? null;
$media['publisher-image'] = $data['publisher_img'] ?? null;
return $media;
}
/**
* Fetch media data from local resources
* @param array $media
* @return array media with added data
*/
private static function fetchLocalData(array $media): array
{
if (!preg_match('|.*?/photo/(.*[a-fA-F0-9])\-(.*[0-9])\..*[\w]|', $media['url'] ?? '', $matches)) {
return $media;
}
$photo = Photo::selectFirst([], ['resource-id' => $matches[1], 'scale' => $matches[2]]);
if (!empty($photo)) {
$media['mimetype'] = $photo['type'];
$media['size'] = $photo['datasize'];
$media['width'] = $photo['width'];
$media['height'] = $photo['height'];
$media['blurhash'] = $photo['blurhash'];
}
if (!preg_match('|.*?/photo/(.*[a-fA-F0-9])\-(.*[0-9])\..*[\w]|', $media['preview'] ?? '', $matches)) {
return $media;
}
$photo = Photo::selectFirst([], ['resource-id' => $matches[1], 'scale' => $matches[2]]);
if (!empty($photo)) {
$media['preview-width'] = $photo['width'];
$media['preview-height'] = $photo['height'];
}
return $media;
}
/**
* Add the detected type to the media array
*
* @param array $data
* @return array data array with the detected type
*/
public static function addType(array $data): array
{
if (empty($data['mimetype'])) {
Logger::info('No MimeType provided', ['media' => $data]);
return $data;
}
$type = explode('/', current(explode(';', $data['mimetype'])));
if (count($type) < 2) {
Logger::info('Unknown MimeType', ['type' => $type, 'media' => $data]);
$data['type'] = self::UNKNOWN;
return $data;
}
$filetype = strtolower($type[0]);
$subtype = strtolower($type[1]);
if ($filetype == 'image') {
$data['type'] = self::IMAGE;
} elseif ($filetype == 'video') {
$data['type'] = self::VIDEO;
} elseif ($filetype == 'audio') {
$data['type'] = self::AUDIO;
} elseif (($filetype == 'text') && ($subtype == 'html')) {
$data['type'] = self::HTML;
} elseif (($filetype == 'text') && ($subtype == 'xml')) {
$data['type'] = self::XML;
} elseif (($filetype == 'text') && ($subtype == 'plain')) {
$data['type'] = self::PLAIN;
} elseif ($filetype == 'text') {
$data['type'] = self::TEXT;
} elseif (($filetype == 'application') && ($subtype == 'x-bittorrent')) {
$data['type'] = self::TORRENT;
} elseif ($filetype == 'application') {
$data['type'] = self::APPLICATION;
} else {
$data['type'] = self::UNKNOWN;
Logger::info('Unknown type', ['filetype' => $filetype, 'subtype' => $subtype, 'media' => $data]);
return $data;
}
Logger::debug('Detected type', ['filetype' => $filetype, 'subtype' => $subtype, 'media' => $data]);
return $data;
}
/**
* Tests for path patterns that are usef for picture links in Friendica
*
* @param string $page Link to the image page
* @param string $preview Preview picture
* @return boolean
*/
private static function isPictureLink(string $page, string $preview): bool
{
return preg_match('#/photos/.*/image/#ism', $page) && preg_match('#/photo/.*-1\.#ism', $preview);
}
/**
* Add media links and remove them from the body
*
* @param integer $uriid
* @param string $body
* @return string Body without media links
*/
public static function insertFromBody(int $uriid, string $body, bool $endmatch = false): string
{
$endmatchpattern = $endmatch ? '\z' : '';
// Simplify image codes
$unshared_body = $body = preg_replace("/\[img\=([0-9]*)x([0-9]*)\](.*?)\[\/img\]$endmatchpattern/ism", '[img]$3[/img]', $body);
$attachments = [];
if (preg_match_all("#\[url=([^\]]+?)\]\s*\[img=([^\[\]]*)\]([^\[\]]*)\[\/img\]\s*\[/url\]$endmatchpattern#ism", $body, $pictures, PREG_SET_ORDER)) {
foreach ($pictures as $picture) {
if (!self::isPictureLink($picture[1], $picture[2])) {
continue;
}
$body = str_replace($picture[0], '', $body);
$image = str_replace('-1.', '-0.', $picture[2]);
$attachments[$image] = ['uri-id' => $uriid, 'type' => self::IMAGE, 'url' => $image,
'preview' => $picture[2], 'description' => $picture[3]];
}
}
if (preg_match_all("/\[img=([^\[\]]*)\]([^\[\]]*)\[\/img\]$endmatchpattern/Usi", $body, $pictures, PREG_SET_ORDER)) {
foreach ($pictures as $picture) {
$body = str_replace($picture[0], '', $body);
$attachments[$picture[1]] = ['uri-id' => $uriid, 'type' => self::IMAGE, 'url' => $picture[1], 'description' => $picture[2]];
}
}
if (preg_match_all("#\[url=([^\]]+?)\]\s*\[img\]([^\[]+?)\[/img\]\s*\[/url\]$endmatchpattern#ism", $body, $pictures, PREG_SET_ORDER)) {
foreach ($pictures as $picture) {
if (!self::isPictureLink($picture[1], $picture[2])) {
continue;
}
$body = str_replace($picture[0], '', $body);
$image = str_replace('-1.', '-0.', $picture[2]);
$attachments[$image] = ['uri-id' => $uriid, 'type' => self::IMAGE, 'url' => $image,
'preview' => $picture[2], 'description' => null];
}
}
if (preg_match_all("/\[img\]([^\[\]]*)\[\/img\]$endmatchpattern/ism", $body, $pictures, PREG_SET_ORDER)) {
foreach ($pictures as $picture) {
$body = str_replace($picture[0], '', $body);
$attachments[$picture[1]] = ['uri-id' => $uriid, 'type' => self::IMAGE, 'url' => $picture[1]];
}
}
if (preg_match_all("/\[audio\]([^\[\]]*)\[\/audio\]$endmatchpattern/ism", $body, $audios, PREG_SET_ORDER)) {
foreach ($audios as $audio) {
$body = str_replace($audio[0], '', $body);
$attachments[$audio[1]] = ['uri-id' => $uriid, 'type' => self::AUDIO, 'url' => $audio[1]];
}
}
if (preg_match_all("/\[video\]([^\[\]]*)\[\/video\]$endmatchpattern/ism", $body, $videos, PREG_SET_ORDER)) {
foreach ($videos as $video) {
$body = str_replace($video[0], '', $body);
$attachments[$video[1]] = ['uri-id' => $uriid, 'type' => self::VIDEO, 'url' => $video[1]];
}
}
if ($uriid != 0) {
foreach ($attachments as $attachment) {
if (Post\Link::exists($uriid, $attachment['preview'] ?? $attachment['url'])) {
continue;
}
// Only store attachments that are part of the unshared body
if (Item::containsLink($unshared_body, $attachment['preview'] ?? $attachment['url'], $attachment['type'])) {
self::insert($attachment);
}
}
}
return trim($body);
}
/**
* Remove media that is at the end of the body
*
* @param string $body
* @return string
*/
public static function removeFromEndOfBody(string $body): string
{
do {
$prebody = $body;
$body = self::insertFromBody(0, $body, true);
} while ($prebody != $body);
return $body;
}
/**
* Add media links from a relevant url in the body
*
* @param integer $uriid
* @param string $body
* @return void
*/
public static function insertFromRelevantUrl(int $uriid, string $body, string $fullbody, string $network)
{
// Remove all hashtags and mentions
$body = preg_replace("/([#@!])\[url\=(.*?)\](.*?)\[\/url\]/ism", '', $body);
// Search for pure links
if (preg_match_all("/\[url\](https?:.*?)\[\/url\]/ism", $body, $matches)) {
foreach ($matches[1] as $url) {
Logger::info('Got page url (link without description)', ['uri-id' => $uriid, 'url' => $url]);
$result = self::insert(['uri-id' => $uriid, 'type' => self::UNKNOWN, 'url' => $url], false, $network);
if ($result && ($network == Protocol::DFRN)) {
self::revertHTMLType($uriid, $url, $fullbody);
Logger::debug('Revert HTML type', ['uri-id' => $uriid, 'url' => $url]);
} elseif ($result) {
Logger::debug('Media had been added', ['uri-id' => $uriid, 'url' => $url]);
} else {
Logger::debug('Media had not been added', ['uri-id' => $uriid, 'url' => $url]);
}
}
}
// Search for links with descriptions
if (preg_match_all("/\[url\=(https?:.*?)\].*?\[\/url\]/ism", $body, $matches)) {
foreach ($matches[1] as $url) {
Logger::info('Got page url (link with description)', ['uri-id' => $uriid, 'url' => $url]);
$result = self::insert(['uri-id' => $uriid, 'type' => self::UNKNOWN, 'url' => $url], false, $network);
if ($result && ($network == Protocol::DFRN)) {
self::revertHTMLType($uriid, $url, $fullbody);
Logger::debug('Revert HTML type', ['uri-id' => $uriid, 'url' => $url]);
} elseif ($result) {
Logger::debug('Media has been added', ['uri-id' => $uriid, 'url' => $url]);
} else {
Logger::debug('Media has not been added', ['uri-id' => $uriid, 'url' => $url]);
}
}
}
}
/**
* Revert the media type of links to UNKNOWN for DFRN posts when they aren't attached
*
* @param integer $uriid
* @param string $url
* @param string $body
* @return void
*/
private static function revertHTMLType(int $uriid, string $url, string $body)
{
$attachment = BBCode::getAttachmentData($body);
if (!empty($attachment['url']) && Network::getUrlMatch($attachment['url'], $url)) {
return;
}
DBA::update('post-media', ['type' => self::UNKNOWN], ['uri-id' => $uriid, 'type' => self::HTML, 'url' => $url]);
}
/**
* Add media links from the attachment field
*
* @param integer $uriid
* @param string $body
* @return void
*/
public static function insertFromAttachmentData(int $uriid, string $body)
{
$data = BBCode::getAttachmentData($body);
if (empty($data)) {
return;
}
Logger::info('Adding attachment data', ['data' => $data]);
$attachment = [
'uri-id' => $uriid,
'type' => self::HTML,
'url' => $data['url'],
'preview' => $data['preview'] ?? null,
'description' => $data['description'] ?? null,
'name' => $data['title'] ?? null,
'author-url' => $data['author_url'] ?? null,
'author-name' => $data['author_name'] ?? null,
'publisher-url' => $data['provider_url'] ?? null,
'publisher-name' => $data['provider_name'] ?? null,
];
if (!empty($data['image'])) {
$attachment['preview'] = $data['image'];
}
self::insert($attachment);
}
/**
* Add media links from the attach field
*
* @param integer $uriid
* @param string $attach
* @return void
*/
public static function insertFromAttachment(int $uriid, string $attach)
{
if (!preg_match_all('|\[attach\]href=\"(.*?)\" length=\"(.*?)\" type=\"(.*?)\"(?: title=\"(.*?)\")?|', $attach, $matches, PREG_SET_ORDER)) {
return;
}
foreach ($matches as $attachment) {
$media['type'] = self::DOCUMENT;
$media['uri-id'] = $uriid;
$media['url'] = $attachment[1];
$media['size'] = $attachment[2];
$media['mimetype'] = $attachment[3];
$media['description'] = $attachment[4] ?? '';
self::insert($media);
}
}
/**
* Retrieves the media attachments associated with the provided item ID.
*
* @param int $uri_id URI id
* @param array $types Media types
* @return array|bool Array on success, false on error
* @throws \Exception
*/
public static function getByURIId(int $uri_id, array $types = [])
{
$condition = ["`uri-id` = ? AND `type` != ?", $uri_id, self::UNKNOWN];
if (!empty($types)) {
$condition = DBA::mergeConditions($condition, ['type' => $types]);
}
return DBA::selectToArray('post-media', [], $condition, ['order' => ['id']]);
}
/**
* Checks if media attachments are associated with the provided item ID.
*
* @param int $uri_id URI id
* @param array $types Media types
* @return bool Whether media attachment exists
* @throws \Exception
*/
public static function existsByURIId(int $uri_id, array $types = []): bool
{
$condition = ["`uri-id` = ? AND `type` != ?", $uri_id, self::UNKNOWN];
if (!empty($types)) {
$condition = DBA::mergeConditions($condition, ['type' => $types]);
}
return DBA::exists('post-media', $condition);
}
/**
* Delete media by uri-id and media type
*
* @param int $uri_id URI id
* @param array $types Media types
* @return bool Whether media attachment exists
* @throws \Exception
*/
public static function deleteByURIId(int $uri_id, array $types = []): bool
{
$condition = ['uri-id' => $uri_id];
if (!empty($types)) {
$condition = DBA::mergeConditions($condition, ['type' => $types]);
}
return DBA::delete('post-media', $condition);
}
/**
* Split the attachment media in the three segments "visual", "link" and "additional"
*
* @param int $uri_id URI id
* @param array $links list of links that shouldn't be added
* @param bool $has_media
* @return array attachments
*/
public static function splitAttachments(int $uri_id, array $links = [], bool $has_media = true): array
{
$attachments = ['visual' => [], 'link' => [], 'additional' => []];
if (!$has_media) {
return $attachments;
}
$media = self::getByURIId($uri_id);
if (empty($media)) {
return $attachments;
}
$heights = [];
$selected = '';
$previews = [];
foreach ($media as $medium) {
foreach ($links as $link) {
if (Strings::compareLink($link, $medium['url'])) {
continue 2;
}
}
// Avoid adding separate media entries for previews
foreach ($previews as $preview) {
if (Strings::compareLink($preview, $medium['url'])) {
continue 2;
}
}
// Currently these two types are ignored here.
// Posts are added differently and contacts are not displayed as attachments.
if (in_array($medium['type'], [self::ACCOUNT, self::ACTIVITY])) {
continue;
}
if (!empty($medium['preview'])) {
$previews[] = $medium['preview'];
}
$type = explode('/', explode(';', $medium['mimetype'] ?? '')[0]);
if (count($type) < 2) {
Logger::info('Unknown MimeType', ['type' => $type, 'media' => $medium]);
$filetype = 'unkn';
$subtype = 'unkn';
} else {
$filetype = strtolower($type[0]);
$subtype = strtolower($type[1]);
}
$medium['filetype'] = $filetype;
$medium['subtype'] = $subtype;
if ($medium['type'] == self::HTML || (($filetype == 'text') && ($subtype == 'html'))) {
$attachments['link'][] = $medium;
continue;
}
if (in_array($medium['type'], [self::AUDIO, self::IMAGE]) ||
in_array($filetype, ['audio', 'image'])) {
$attachments['visual'][] = $medium;
} elseif (($medium['type'] == self::VIDEO) || ($filetype == 'video')) {
if (!empty($medium['height'])) {
// Peertube videos are delivered in many different resolutions. We pick a moderate one.
// Since only Peertube provides a "height" parameter, this wouldn't be executed
// when someone for example on Mastodon was sharing multiple videos in a single post.
$heights[$medium['height']] = $medium['url'];
$video[$medium['url']] = $medium;
} else {
$attachments['visual'][] = $medium;
}
} else {
$attachments['additional'][] = $medium;
}
}
if (!empty($heights)) {
ksort($heights);
foreach ($heights as $height => $url) {
if (empty($selected) || $height <= 480) {
$selected = $url;
}
}
if (!empty($selected)) {
$attachments['visual'][] = $video[$selected];
unset($video[$selected]);
foreach ($video as $element) {
$attachments['additional'][] = $element;
}
}
}
return $attachments;
}
/**
* Add media attachments to the body
*
* @param int $uriid
* @param string $body
* @param array $types
*
* @return string body
*/
public static function addAttachmentsToBody(int $uriid, string $body = '', array $types = [self::IMAGE, self::AUDIO, self::VIDEO]): string
{
if (empty($body)) {
$item = Post::selectFirst(['body'], ['uri-id' => $uriid]);
if (!DBA::isResult($item)) {
return '';
}
$body = $item['body'];
}
$original_body = $body;
$body = BBCode::removeAttachment($body);
foreach (self::getByURIId($uriid, $types) as $media) {
if (Item::containsLink($body, $media['preview'] ?? $media['url'], $media['type'])) {
continue;
}
if ($media['type'] == self::IMAGE) {
if (!empty($media['preview'])) {
if (!empty($media['description'])) {
$body .= "\n[url=" . $media['url'] . "][img=" . $media['preview'] . ']' . $media['description'] .'[/img][/url]';
} else {
$body .= "\n[url=" . $media['url'] . "][img]" . $media['preview'] .'[/img][/url]';
}
} else {
if (!empty($media['description'])) {
$body .= "\n[img=" . $media['url'] . ']' . $media['description'] .'[/img]';
} else {
$body .= "\n[img]" . $media['url'] .'[/img]';
}
}
} elseif ($media['type'] == self::AUDIO) {
$body .= "\n[audio]" . $media['url'] . "[/audio]\n";
} elseif ($media['type'] == self::VIDEO) {
$body .= "\n[video]" . $media['url'] . "[/video]\n";
}
}
if (preg_match("/.*(\[attachment.*?\].*?\[\/attachment\]).*/ism", $original_body, $match)) {
$body .= "\n" . $match[1];
}
return $body;
}
/**
* Add an [attachment] element to the body for a given uri-id with a HTML media element
*
* @param integer $uriid
* @param string $body
* @return string
*/
public static function addHTMLAttachmentToBody(int $uriid, string $body): string
{
if (preg_match("/.*(\[attachment.*?\].*?\[\/attachment\]).*/ism", $body, $match)) {
return $body;
}
$links = self::getByURIId($uriid, [self::HTML]);
if (empty($links)) {
return $body;
}
$data = [
'type' => 'link',
'url' => $links[0]['url'],
'title' => $links[0]['name'],
'text' => $links[0]['description'],
'publisher_name' => $links[0]['publisher-name'],
'publisher_url' => $links[0]['publisher-url'],
'publisher_img' => $links[0]['publisher-image'],
'author_name' => $links[0]['author-name'],
'author_url' => $links[0]['author-url'],
'author_img' => $links[0]['author-image'],
'images' => [[
'src' => $links[0]['preview'],
'height' => $links[0]['preview-height'],
'width' => $links[0]['preview-width'],
]]
];
$body .= "\n" . PageInfo::getFooterFromData($data);
return $body;
}
/**
* Add a link to the body for a given uri-id with a HTML media element
*
* @param integer $uriid
* @param string $body
* @return string
*/
public static function addHTMLLinkToBody(int $uriid, string $body): string
{
$links = self::getByURIId($uriid, [self::HTML]);
if (empty($links)) {
return $body;
}
if (strpos($body, $links[0]['url'])) {
return $body;
}
if (!empty($links[0]['name']) && ($links[0]['name'] != $links[0]['url'])) {
return $body . "\n[url=" . $links[0]['url'] . ']' . $links[0]['name'] . "[/url]";
} else {
return $body . "\n[url]" . $links[0]['url'] . "[/url]";
}
}
/**
* Add an [attachment] element to the body and a link to raw-body for a given uri-id with a HTML media element
*
* @param array $item
* @return array
*/
public static function addHTMLAttachmentToItem(array $item): array
{
if (($item['gravity'] == Item::GRAVITY_ACTIVITY) || empty($item['uri-id'])) {
return $item;
}
$item['body'] = self::addHTMLAttachmentToBody($item['uri-id'], $item['body']);
if (!empty($item['raw-body'])) {
$item['raw-body'] = self::addHTMLLinkToBody($item['uri-id'], $item['raw-body']);
}
return $item;
}
/**
* Get preview link for given media id
*
* @param integer $id media id
* @param string $size One of the Proxy::SIZE_* constants
* @return string preview link
*/
public static function getPreviewUrlForId(int $id, string $size = ''): string
{
$url = DI::baseUrl() . '/photo/preview/';
switch ($size) {
case Proxy::SIZE_MICRO:
$url .= Proxy::PIXEL_MICRO . '/';
break;
case Proxy::SIZE_THUMB:
$url .= Proxy::PIXEL_THUMB . '/';
break;
case Proxy::SIZE_SMALL:
$url .= Proxy::PIXEL_SMALL . '/';
break;
case Proxy::SIZE_MEDIUM:
$url .= Proxy::PIXEL_MEDIUM . '/';
break;
case Proxy::SIZE_LARGE:
$url .= Proxy::PIXEL_LARGE . '/';
break;
}
return $url . $id;
}
/**
* Get media link for given media id
*
* @param integer $id media id
* @param string $size One of the Proxy::SIZE_* constants
* @return string media link
*/
public static function getUrlForId(int $id, string $size = ''): string
{
$url = DI::baseUrl() . '/photo/media/';
switch ($size) {
case Proxy::SIZE_MICRO:
$url .= Proxy::PIXEL_MICRO . '/';
break;
case Proxy::SIZE_THUMB:
$url .= Proxy::PIXEL_THUMB . '/';
break;
case Proxy::SIZE_SMALL:
$url .= Proxy::PIXEL_SMALL . '/';
break;
case Proxy::SIZE_MEDIUM:
$url .= Proxy::PIXEL_MEDIUM . '/';
break;
case Proxy::SIZE_LARGE:
$url .= Proxy::PIXEL_LARGE . '/';
break;
}
return $url . $id;
}
}
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