|
1
|
|
|
<?php |
|
2
|
|
|
declare(strict_types=1); |
|
3
|
|
|
|
|
4
|
|
|
namespace Nexendrie\Rss; |
|
5
|
|
|
|
|
6
|
|
|
use Nexendrie\Rss\Extensions\RssCore; |
|
7
|
|
|
use Symfony\Component\OptionsResolver\OptionsResolver; |
|
8
|
|
|
use Nette\Utils\Arrays; |
|
9
|
|
|
|
|
10
|
|
|
/** |
|
11
|
|
|
* RSS Channel Generator |
|
12
|
|
|
* |
|
13
|
|
|
* @author Jakub Konečný |
|
14
|
|
|
* @property-write callable $dataSource |
|
15
|
|
|
* @property string $template |
|
16
|
|
|
* @method void onBeforeGenerate(Generator $generator, array $info) |
|
17
|
|
|
* @method void onAddItem(Generator $generator, \SimpleXMLElement $channel, RssChannelItem $itemDefinition, \SimpleXMLElement $item) |
|
|
|
|
|
|
18
|
|
|
* @method void onAfterGenerate(Generator $generator, array $info) |
|
19
|
|
|
*/ |
|
20
|
1 |
|
final class Generator { |
|
21
|
|
|
use \Nette\SmartObject; |
|
22
|
|
|
|
|
23
|
|
|
private const NAMESPACE_ATTRIBUTE_HACK = "__extension_namespace__"; |
|
24
|
|
|
|
|
25
|
|
|
public string $dateTimeFormat = "r"; |
|
26
|
|
|
/** @var callable|null */ |
|
27
|
|
|
protected $dataSource = null; |
|
28
|
|
|
public int $shortenDescription = 150; |
|
29
|
|
|
public string $generator = "Nexendrie RSS"; |
|
30
|
|
|
public string $docs = "http://www.rssboard.org/rss-specification"; |
|
31
|
|
|
protected string $template = __DIR__ . "/template.xml"; |
|
32
|
|
|
/** @var RssExtensionsCollection|IRssExtension[] */ |
|
33
|
|
|
public RssExtensionsCollection $extensions; |
|
34
|
|
|
/** @var callable[] */ |
|
35
|
|
|
public array $onBeforeGenerate = []; |
|
36
|
|
|
/** @var callable[] */ |
|
37
|
|
|
public array $onAddItem = []; |
|
38
|
|
|
/** @var callable[] */ |
|
39
|
|
|
public array $onAfterGenerate = []; |
|
40
|
|
|
|
|
41
|
|
|
public function __construct() { |
|
42
|
1 |
|
$this->extensions = RssExtensionsCollection::fromArray([new RssCore()]); |
|
43
|
1 |
|
} |
|
44
|
|
|
|
|
45
|
|
|
protected function setDataSource(callable $dataSource): void { |
|
46
|
1 |
|
$this->dataSource = $dataSource; |
|
47
|
1 |
|
} |
|
48
|
|
|
|
|
49
|
|
|
protected function getTemplate(): string { |
|
50
|
1 |
|
return $this->template; |
|
51
|
|
|
} |
|
52
|
|
|
|
|
53
|
|
|
/** |
|
54
|
|
|
* @throws \RuntimeException |
|
55
|
|
|
*/ |
|
56
|
|
|
protected function setTemplate(string $template): void { |
|
57
|
1 |
|
if(!is_file($template) || !is_readable($template)) { |
|
58
|
1 |
|
throw new \RuntimeException("File $template does not exist or is not readable."); |
|
59
|
|
|
} |
|
60
|
1 |
|
$this->template = $template; |
|
61
|
1 |
|
} |
|
62
|
|
|
|
|
63
|
|
|
/** |
|
64
|
|
|
* @throws InvalidStateException |
|
65
|
|
|
* @throws \InvalidArgumentException |
|
66
|
|
|
*/ |
|
67
|
|
|
protected function getData(): Collection { |
|
68
|
1 |
|
if($this->dataSource === null) { |
|
69
|
1 |
|
throw new InvalidStateException("Data source for RSS generator is not set."); |
|
70
|
|
|
} |
|
71
|
1 |
|
$items = call_user_func($this->dataSource); |
|
72
|
1 |
|
if(!$items instanceof Collection) { |
|
73
|
1 |
|
throw new \InvalidArgumentException("Callback for data source for RSS generator has to return an instance of " . Collection::class . "."); |
|
|
|
|
|
|
74
|
|
|
} |
|
75
|
1 |
|
return $items; |
|
76
|
|
|
} |
|
77
|
|
|
|
|
78
|
|
|
protected function writeProperty(\SimpleXMLElement &$channel, array $info, string $property): void { |
|
79
|
1 |
|
$value = Arrays::get($info, $property, ""); |
|
80
|
1 |
|
if(!$value instanceof IXmlConvertible) { |
|
81
|
1 |
|
$value = new GenericElement($property, $value); |
|
82
|
|
|
} |
|
83
|
1 |
|
$value->appendToXml($channel->channel); |
|
84
|
1 |
|
} |
|
85
|
|
|
|
|
86
|
|
|
/** |
|
87
|
|
|
* @throws InvalidStateException |
|
88
|
|
|
* @throws \InvalidArgumentException |
|
89
|
|
|
*/ |
|
90
|
|
|
public function generate(array $info): string { |
|
91
|
1 |
|
$this->onBeforeGenerate($this, $info); |
|
92
|
1 |
|
$items = $this->getData(); |
|
93
|
1 |
|
$resolver = new OptionsResolver(); |
|
94
|
1 |
|
foreach($this->extensions as $extension) { |
|
95
|
1 |
|
$extension->configureChannelOptions($resolver, $this); |
|
96
|
|
|
} |
|
97
|
1 |
|
$info = $resolver->resolve($info); |
|
98
|
|
|
/** @var \SimpleXMLElement $channel */ |
|
99
|
1 |
|
$channel = simplexml_load_file($this->template); |
|
100
|
1 |
|
foreach($this->extensions as $extension) { |
|
101
|
1 |
|
if($extension->getName() !== "" && $extension->getNamespace() !== "") { |
|
102
|
1 |
|
$channel->addAttribute(static::NAMESPACE_ATTRIBUTE_HACK . $extension->getName(), $extension->getNamespace()); |
|
103
|
|
|
} |
|
104
|
|
|
} |
|
105
|
1 |
|
$properties = $resolver->getDefinedOptions(); |
|
106
|
1 |
|
foreach($properties as $property) { |
|
107
|
1 |
|
$this->writeProperty($channel, $info, $property); |
|
108
|
|
|
} |
|
109
|
1 |
|
if($this->generator !== "") { |
|
110
|
1 |
|
$channel->channel->generator = $this->generator; |
|
111
|
|
|
} |
|
112
|
1 |
|
if($this->docs !== "") { |
|
113
|
1 |
|
$channel->channel->docs = $this->docs; |
|
114
|
|
|
} |
|
115
|
|
|
/** @var RssChannelItem $item */ |
|
116
|
1 |
|
foreach($items as $item) { |
|
117
|
|
|
/** @var \SimpleXMLElement $i */ |
|
118
|
1 |
|
$i = $channel->channel->addChild("item"); |
|
119
|
1 |
|
$item->toXml($i, $this); |
|
120
|
1 |
|
$this->onAddItem($this, $channel, $item, $i); |
|
121
|
|
|
} |
|
122
|
1 |
|
$this->onAfterGenerate($this, $info); |
|
123
|
1 |
|
$dom = new \DOMDocument(); |
|
124
|
1 |
|
$dom->preserveWhiteSpace = false; |
|
125
|
1 |
|
$dom->formatOutput = true; |
|
126
|
1 |
|
$xml = $channel->asXML(); |
|
127
|
1 |
|
$xml = str_replace(static::NAMESPACE_ATTRIBUTE_HACK, "xmlns:", $xml); |
|
128
|
1 |
|
$dom->loadXML($xml); |
|
129
|
1 |
|
return (string) $dom->saveXML(); |
|
130
|
|
|
} |
|
131
|
|
|
|
|
132
|
|
|
/** |
|
133
|
|
|
* @throws InvalidStateException |
|
134
|
|
|
* @throws \InvalidArgumentException |
|
135
|
|
|
*/ |
|
136
|
|
|
public function response(array $info): RssResponse { |
|
137
|
1 |
|
return new RssResponse($this->generate($info)); |
|
138
|
|
|
} |
|
139
|
|
|
} |
|
140
|
|
|
?> |
nexendrie /
rss
Loading history...