miniflux-legacy/models/favicon.php

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PHP
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2016-01-10 01:04:42 +01:00
<?php
namespace Model\Favicon;
use UnexpectedValueException;
use Model\Config;
use Model\Item;
use Model\Group;
use Helper;
use SimpleValidator\Validator;
use SimpleValidator\Validators;
use PicoDb\Database;
use PicoFeed\Serialization\Export;
use PicoFeed\Serialization\Import;
use PicoFeed\Reader\Reader;
use PicoFeed\Reader\Favicon;
use PicoFeed\PicoFeedException;
use PicoFeed\Client\InvalidUrlException;
const LIMIT_ALL = -1;
// Create a favicons
function create_feed_favicon($feed_id, $site_url, $icon_link) {
if (has_favicon($feed_id)) {
return true;
}
$favicon = fetch($feed_id, $site_url, $icon_link);
if ($favicon === false) {
return false;
}
$favicon_id = store($favicon->getType(), $favicon->getContent());
if ($favicon_id === false) {
return false;
}
return Database::getInstance('db')
->table('favicons_feeds')
->save(array(
'feed_id' => $feed_id,
'favicon_id' => $favicon_id
));
}
// Download a favicon
function fetch($feed_id, $site_url, $icon_link)
{
if (Config\get('favicons') == 1 && ! has_favicon($feed_id)) {
$favicon = new Favicon;
$favicon->find($site_url, $icon_link);
return $favicon;
}
return false;
}
// Store the favicon (only if it does not exist yet)
function store($type, $icon)
{
if ($icon == "") {
return false;
}
$hash = sha1($icon);
$favicon_id = get_favicon_id($hash);
if ($favicon_id) {
return $favicon_id;
}
$file = $hash.Helper\favicon_extension($type);
if (file_put_contents(FAVICON_DIRECTORY.DIRECTORY_SEPARATOR.$file, $icon) === false) {
return false;
}
$saved = Database::getInstance('db')
->table('favicons')
->save(array(
'hash' => $hash,
'type' => $type
));
if ($saved === false) {
return false;
}
return get_favicon_id($hash);
}
function get_favicon_id($hash) {
return Database::getInstance('db')
->table('favicons')
->eq('hash', $hash)
->findOneColumn('id');
}
// Delete the favicon
function delete_favicon($favicon)
{
unlink(FAVICON_DIRECTORY.DIRECTORY_SEPARATOR.$favicon['hash'].Helper\favicon_extension($favicon['type']));
Database::getInstance('db')
->table('favicons')
->eq('hash', $favicon['hash'])
->remove();
}
// Purge orphaned favicons from database
function purge_favicons()
{
$favicons = Database::getInstance('db')
->table('favicons')
->columns(
'favicons.type',
'favicons.hash',
'favicons_feeds.feed_id'
)
->join('favicons_feeds', 'favicon_id', 'id')
->isnull('favicons_feeds.feed_id')
->findAll();
foreach ($favicons as $favicon) {
delete_favicon($favicon);
}
}
// Return true if the feed has a favicon
function has_favicon($feed_id)
{
return Database::getInstance('db')->table('favicons_feeds')->eq('feed_id', $feed_id)->count() === 1;
}
// Get favicons for those feeds
function get_favicons(array $feed_ids)
{
if (Config\get('favicons') == 0) {
return array();
}
$result = array();
foreach ($feed_ids as $feed_id) {
$result[$feed_id] = Database::getInstance('db')
->table('favicons')
->columns(
'favicons.type',
'favicons.hash'
)
->join('favicons_feeds', 'favicon_id', 'id')
->eq('favicons_feeds.feed_id', $feed_id)
->findOne();
}
return $result;
}
// Get all favicons for a list of items
function get_item_favicons(array $items)
{
$feed_ids = array();
foreach ($items as $item) {
$feed_ids[$item['feed_id']] = $item['feed_id'];
}
return get_favicons($feed_ids);
}
// Get all favicons
function get_all_favicons()
{
if (Config\get('favicons') == 0) {
return array();
}
$result = Database::getInstance('db')
->table('favicons')
->columns(
'favicons_feeds.feed_id',
'favicons.type',
'favicons.hash'
)
->join('favicons_feeds', 'favicon_id', 'id')
->findAll();
$map = array();
foreach ($result as $row) {
$map[$row['feed_id']] = array (
"type" => $row['type'],
"hash" => $row['hash']
);
}
return $map;
}