|
1
|
|
|
<?php declare(strict_types=1); |
|
2
|
|
|
|
|
3
|
|
|
/** |
|
4
|
|
|
* ownCloud - Music app |
|
5
|
|
|
* |
|
6
|
|
|
* This file is licensed under the Affero General Public License version 3 or |
|
7
|
|
|
* later. See the COPYING file. |
|
8
|
|
|
* |
|
9
|
|
|
* @author Pauli Järvinen <[email protected]> |
|
10
|
|
|
* @copyright Pauli Järvinen 2021 |
|
11
|
|
|
*/ |
|
12
|
|
|
|
|
13
|
|
|
namespace OCA\Music\BusinessLayer; |
|
14
|
|
|
|
|
15
|
|
|
use \OCA\Music\AppFramework\BusinessLayer\BusinessLayer; |
|
16
|
|
|
use \OCA\Music\AppFramework\Core\Logger; |
|
17
|
|
|
|
|
18
|
|
|
use \OCA\Music\Db\BaseMapper; |
|
19
|
|
|
use \OCA\Music\Db\PodcastChannelMapper; |
|
20
|
|
|
use \OCA\Music\Db\PodcastChannel; |
|
21
|
|
|
|
|
22
|
|
|
use \OCA\Music\Utility\Util; |
|
23
|
|
|
|
|
24
|
|
|
|
|
25
|
|
|
/** |
|
26
|
|
|
* Base class functions with the actually used inherited types to help IDE and Scrutinizer: |
|
27
|
|
|
* @method PodcastChannel find(int $channelId, string $userId) |
|
28
|
|
|
* @method PodcastChannel[] findAll(string $userId, int $sortBy=SortBy::None, int $limit=null, int $offset=null, ?string $createdMin=null, ?string $createdMax=null, ?string $updatedMin=null, ?string $updatedMax=null) |
|
29
|
|
|
* @method PodcastChannel[] findAllByName(string $name, string $userId, bool $fuzzy=false, int $limit=null, int $offset=null, ?string $createdMin=null, ?string $createdMax=null, ?string $updatedMin=null, ?string $updatedMax=null) |
|
30
|
|
|
*/ |
|
31
|
|
|
class PodcastChannelBusinessLayer extends BusinessLayer { |
|
32
|
|
|
protected $mapper; // eclipse the definition from the base class, to help IDE and Scrutinizer to know the actual type |
|
33
|
|
|
private $logger; |
|
34
|
|
|
|
|
35
|
|
|
public function __construct(PodcastChannelMapper $mapper, Logger $logger) { |
|
36
|
|
|
parent::__construct($mapper); |
|
37
|
|
|
$this->mapper = $mapper; |
|
38
|
|
|
$this->logger = $logger; |
|
39
|
|
|
} |
|
40
|
|
|
|
|
41
|
|
|
public function create(string $userId, string $rssUrl, string $rssContent, \SimpleXMLElement $xmlNode) : PodcastChannel { |
|
42
|
|
|
$channel = new PodcastChannel(); |
|
43
|
|
|
self::parseChannelDataFromXml($xmlNode, $channel); |
|
44
|
|
|
|
|
45
|
|
|
$channel->setUserId( $userId ); |
|
46
|
|
|
$channel->setRssUrl( Util::truncate($rssUrl, 2048) ); |
|
47
|
|
|
$channel->setRssHash( \hash('md5', $rssUrl) ); |
|
48
|
|
|
$channel->setContentHash( self::calculateContentHash($rssContent) ); |
|
49
|
|
|
$channel->setUpdateChecked( \date(BaseMapper::SQL_DATE_FORMAT) ); |
|
50
|
|
|
|
|
51
|
|
|
return $this->mapper->insert($channel); |
|
|
|
|
|
|
52
|
|
|
} |
|
53
|
|
|
|
|
54
|
|
|
/** |
|
55
|
|
|
* @param PodcastChannel $channel Input/output parameter for the channel |
|
56
|
|
|
* @param string $rssContent Raw content of the RSS feed |
|
57
|
|
|
* @param \SimpleXMLElement $xmlNode <channel> node parsed from the RSS feed |
|
58
|
|
|
* @return boolean true if the new content differed from the previously cached content |
|
59
|
|
|
*/ |
|
60
|
|
|
public function updateChannel(PodcastChannel &$channel, string $rssContent, \SimpleXMLElement $xmlNode) { |
|
61
|
|
|
$contentChanged = false; |
|
62
|
|
|
$contentHash = self::calculateContentHash($rssContent); |
|
63
|
|
|
|
|
64
|
|
|
if ($channel->getContentHash() !== $contentHash) { |
|
65
|
|
|
$contentChanged = true; |
|
66
|
|
|
self::parseChannelDataFromXml($xmlNode, $channel); |
|
67
|
|
|
$channel->setContentHash($contentHash); |
|
68
|
|
|
} |
|
69
|
|
|
$channel->setUpdateChecked( \date(BaseMapper::SQL_DATE_FORMAT) ); |
|
70
|
|
|
|
|
71
|
|
|
$this->update($channel); |
|
72
|
|
|
return $contentChanged; |
|
73
|
|
|
} |
|
74
|
|
|
|
|
75
|
|
|
private static function calculateContentHash(string $rssContent) : string { |
|
76
|
|
|
// Exclude the tag <lastBuildDate> from the calculation. This is because many podcast feeds update that |
|
77
|
|
|
// very often, e.g. every 15 minutes, even when nothing else has changed. Including such a volatile field |
|
78
|
|
|
// on the hash would cause a lot of unnecessary updating of the database contents. |
|
79
|
|
|
$ctx = \hash_init('md5'); |
|
80
|
|
|
|
|
81
|
|
|
$head = \strstr($rssContent, '<lastBuildDate>', true); |
|
82
|
|
|
$tail = ($head === false) ? false : \strstr($rssContent, '</lastBuildDate>', false); |
|
83
|
|
|
|
|
84
|
|
|
if ($tail === false) { |
|
85
|
|
|
// tag not found, just calculate the hash from the whole content |
|
86
|
|
|
\hash_update($ctx, $rssContent); |
|
87
|
|
|
} else { |
|
88
|
|
|
\hash_update($ctx, $head); |
|
89
|
|
|
\hash_update($ctx, $tail); |
|
90
|
|
|
} |
|
91
|
|
|
|
|
92
|
|
|
return \hash_final($ctx); |
|
93
|
|
|
} |
|
94
|
|
|
|
|
95
|
|
|
private static function parseChannelDataFromXml(\SimpleXMLElement $xmlNode, PodcastChannel &$channel) : void { |
|
96
|
|
|
$itunesNodes = $xmlNode->children('http://www.itunes.com/dtds/podcast-1.0.dtd'); |
|
97
|
|
|
|
|
98
|
|
|
if ($xmlNode->pubDate) { |
|
99
|
|
|
$channel->setPublished( \date(BaseMapper::SQL_DATE_FORMAT, \strtotime((string)($xmlNode->pubDate))) ); |
|
100
|
|
|
} else { |
|
101
|
|
|
$channel->setPublished(null); |
|
102
|
|
|
} |
|
103
|
|
|
$channel->setTitle( Util::truncate((string)$xmlNode->title, 256) ); |
|
104
|
|
|
$channel->setLinkUrl( Util::truncate((string)$xmlNode->link, 2048) ); |
|
105
|
|
|
$channel->setLanguage( Util::truncate((string)$xmlNode->language, 32) ); |
|
106
|
|
|
$channel->setCopyright( Util::truncate((string)$xmlNode->copyright, 256) ); |
|
107
|
|
|
$channel->setAuthor( Util::truncate((string)($xmlNode->author ?: $itunesNodes->author), 256) ); |
|
108
|
|
|
$channel->setDescription( (string)($xmlNode->description ?: $itunesNodes->summary) ); |
|
109
|
|
|
$channel->setImageUrl( (string)$xmlNode->image->url ); |
|
110
|
|
|
$channel->setCategory( \implode(', ', \array_map(function ($category) { |
|
111
|
|
|
return $category->attributes()['text']; |
|
112
|
|
|
}, \iterator_to_array($itunesNodes->category, false))) ); |
|
113
|
|
|
} |
|
114
|
|
|
|
|
115
|
|
|
} |
|
116
|
|
|
|
owncloud /
music
Loading history...