|
1
|
|
|
<?php |
|
2
|
|
|
declare(strict_types=1); |
|
3
|
|
|
|
|
4
|
|
|
namespace Nexendrie\Rss; |
|
5
|
|
|
|
|
6
|
|
|
/** |
|
7
|
|
|
* RSS Channel Generator |
|
8
|
|
|
* |
|
9
|
|
|
* @author Jakub Konečný |
|
10
|
|
|
* @property string $title |
|
11
|
|
|
* @property string $description |
|
12
|
|
|
* @property string $link |
|
13
|
|
|
* @property callable $dataSource |
|
14
|
|
|
* @property int $shortenDescription |
|
15
|
|
|
* @property string $dateTimeFormat |
|
16
|
|
|
* @property callable $lastBuildDate |
|
17
|
|
|
*/ |
|
18
|
1 |
|
class Generator { |
|
19
|
1 |
|
use \Nette\SmartObject; |
|
20
|
|
|
|
|
21
|
|
|
/** @var string */ |
|
22
|
|
|
protected $title = ""; |
|
23
|
|
|
/** @var string */ |
|
24
|
|
|
protected $description = ""; |
|
25
|
|
|
/** @var string */ |
|
26
|
|
|
protected $link = ""; |
|
27
|
|
|
/** @var string */ |
|
28
|
|
|
protected $dateTimeFormat = "Y-m-d H:i:s"; |
|
29
|
|
|
/** @var callable|null */ |
|
30
|
|
|
protected $dataSource = NULL; |
|
31
|
|
|
/** @var int */ |
|
32
|
|
|
protected $shortenDescription = 150; |
|
33
|
|
|
/** @var callable */ |
|
34
|
|
|
protected $lastBuildDate = "time"; |
|
35
|
|
|
|
|
36
|
|
|
public function getTitle(): string { |
|
37
|
1 |
|
return $this->title; |
|
38
|
|
|
} |
|
39
|
|
|
|
|
40
|
|
|
public function setTitle(string $title) { |
|
41
|
1 |
|
$this->title = $title; |
|
42
|
1 |
|
} |
|
43
|
|
|
|
|
44
|
|
|
public function getDescription(): string { |
|
45
|
1 |
|
return $this->description; |
|
46
|
|
|
} |
|
47
|
|
|
|
|
48
|
|
|
public function setDescription(string $description) { |
|
49
|
1 |
|
$this->description = $description; |
|
50
|
1 |
|
} |
|
51
|
|
|
|
|
52
|
|
|
public function getLink(): string { |
|
53
|
1 |
|
return $this->link; |
|
54
|
|
|
} |
|
55
|
|
|
|
|
56
|
|
|
public function setLink(string $link) { |
|
57
|
1 |
|
$this->link = $link; |
|
58
|
1 |
|
} |
|
59
|
|
|
|
|
60
|
|
|
public function setDataSource(callable $dataSource) { |
|
61
|
1 |
|
$this->dataSource = $dataSource; |
|
62
|
1 |
|
} |
|
63
|
|
|
|
|
64
|
|
|
public function getShortenDescription(): int { |
|
65
|
1 |
|
return $this->shortenDescription; |
|
66
|
|
|
} |
|
67
|
|
|
|
|
68
|
|
|
public function setShortenDescription(int $value) { |
|
69
|
1 |
|
$this->shortenDescription = $value; |
|
70
|
1 |
|
} |
|
71
|
|
|
|
|
72
|
|
|
public function getDateTimeFormat(): string { |
|
73
|
1 |
|
return $this->dateTimeFormat; |
|
74
|
|
|
} |
|
75
|
|
|
|
|
76
|
|
|
public function setDateTimeFormat(string $format) { |
|
77
|
1 |
|
$this->dateTimeFormat = $format; |
|
78
|
1 |
|
} |
|
79
|
|
|
|
|
80
|
|
|
public function getLastBuildDate() { |
|
81
|
1 |
|
return $this->lastBuildDate; |
|
82
|
|
|
} |
|
83
|
|
|
|
|
84
|
|
|
public function setLastBuildDate(callable $lastBuildDate) { |
|
85
|
1 |
|
$this->lastBuildDate = $lastBuildDate; |
|
86
|
1 |
|
} |
|
87
|
|
|
|
|
88
|
|
|
/** |
|
89
|
|
|
* @throws InvalidStateException |
|
90
|
|
|
* @throws \InvalidArgumentException |
|
91
|
|
|
*/ |
|
92
|
|
|
protected function getData(): Collection { |
|
93
|
1 |
|
if(is_null($this->dataSource)) { |
|
94
|
1 |
|
throw new InvalidStateException("Data source for RSS generator is not set."); |
|
95
|
|
|
} |
|
96
|
1 |
|
$items = call_user_func($this->dataSource); |
|
97
|
1 |
|
if(!$items instanceof Collection) { |
|
98
|
1 |
|
throw new \InvalidArgumentException("Callback for data source for RSS generator has to return " . Collection::class . "."); |
|
|
|
|
|
|
99
|
|
|
} |
|
100
|
1 |
|
return $items; |
|
101
|
|
|
} |
|
102
|
|
|
|
|
103
|
|
|
protected function shortenDescription(string $description): string { |
|
104
|
1 |
|
if($this->shortenDescription < 1) { |
|
105
|
1 |
|
return $description; |
|
106
|
|
|
} |
|
107
|
1 |
|
$originalDescription = $description; |
|
108
|
1 |
|
$description = substr($description, 0, $this->shortenDescription); |
|
109
|
1 |
|
if($description !== $originalDescription) { |
|
110
|
1 |
|
$description .= "..."; |
|
111
|
|
|
} |
|
112
|
1 |
|
return $description; |
|
113
|
|
|
} |
|
114
|
|
|
|
|
115
|
|
|
protected function writeProperty(\SimpleXMLElement &$channel, string $property): void { |
|
116
|
1 |
|
if(isset($this->$property) AND $this->$property !== "") { |
|
117
|
1 |
|
$channel->channel->{$property}[0][0] = $this->$property; |
|
118
|
|
|
} |
|
119
|
1 |
|
} |
|
120
|
|
|
|
|
121
|
|
|
/** |
|
122
|
|
|
* @throws InvalidStateException |
|
123
|
|
|
* @throws \InvalidArgumentException |
|
124
|
|
|
*/ |
|
125
|
|
|
public function generate(): \SimpleXMLElement { |
|
126
|
1 |
|
$items = $this->getData(); |
|
127
|
1 |
|
$lastBuildDate = call_user_func($this->lastBuildDate); |
|
128
|
1 |
|
if(!is_int($lastBuildDate)) { |
|
129
|
1 |
|
throw new \InvalidArgumentException("Callback for last build date for RSS generator has to return integer."); |
|
130
|
|
|
} |
|
131
|
1 |
|
$channel = simplexml_load_file(__DIR__ . "/template.xml"); |
|
132
|
1 |
|
$channel->channel->lastBuildDate[0][0] = date($this->dateTimeFormat, $lastBuildDate); |
|
133
|
1 |
|
$this->writeProperty($channel, "link"); |
|
134
|
1 |
|
$this->writeProperty($channel, "title"); |
|
135
|
1 |
|
$this->writeProperty($channel, "description"); |
|
136
|
|
|
/** @var RssChannelItem $item */ |
|
137
|
1 |
|
foreach($items as $item) { |
|
138
|
|
|
/** @var \SimpleXMLElement $i */ |
|
139
|
1 |
|
$i = $channel->channel->addChild("item"); |
|
140
|
1 |
|
$i->addChild("title", $item->title); |
|
141
|
1 |
|
$i->addChild("link", $item->link); |
|
142
|
1 |
|
$i->addChild("pubDate", $item->pubDate); |
|
143
|
1 |
|
$i->addChild("description", $this->shortenDescription($item->description)); |
|
144
|
|
|
} |
|
145
|
1 |
|
return $channel; |
|
146
|
|
|
} |
|
147
|
|
|
|
|
148
|
|
|
/** |
|
149
|
|
|
* @throws InvalidStateException |
|
150
|
|
|
* @throws \InvalidArgumentException |
|
151
|
|
|
*/ |
|
152
|
|
|
public function response(): RssResponse { |
|
153
|
|
|
try { |
|
154
|
1 |
|
return new RssResponse($this->generate()); |
|
155
|
1 |
|
} catch(InvalidStateException | \InvalidArgumentException $e) { |
|
156
|
1 |
|
throw $e; |
|
157
|
|
|
} |
|
158
|
|
|
} |
|
159
|
|
|
} |
|
160
|
|
|
?> |
nexendrie /
rss
Loading history...