|
1
|
|
|
<?php |
|
2
|
|
|
|
|
3
|
|
|
use GuzzleHttp\Client; |
|
4
|
|
|
use GuzzleHttp\Exception\ClientException; |
|
5
|
|
|
|
|
6
|
|
|
/** |
|
7
|
|
|
* A GitHub service for communicating with the GitHub API to render Markdown. Uses Guzzle as the |
|
8
|
|
|
* transport method. |
|
9
|
|
|
* |
|
10
|
|
|
* @package mysite |
|
11
|
|
|
*/ |
|
12
|
|
|
class GitHubMarkdownService extends Object |
|
13
|
|
|
{ |
|
14
|
|
|
/** |
|
15
|
|
|
* The Guzzle client |
|
16
|
|
|
* |
|
17
|
|
|
* @var GuzzleHttp\Client |
|
18
|
|
|
*/ |
|
19
|
|
|
protected $client; |
|
20
|
|
|
|
|
21
|
|
|
/** |
|
22
|
|
|
* GitHub API configuration |
|
23
|
|
|
* @var string |
|
24
|
|
|
*/ |
|
25
|
|
|
const API_BASE_URI = 'https://api.github.com'; |
|
26
|
|
|
const API_REQUEST_METHOD = 'POST'; |
|
27
|
|
|
const API_RENDER_ENDPOINT = '/markdown/raw'; |
|
28
|
|
|
|
|
29
|
|
|
/** |
|
30
|
|
|
* Use GitHub's API to render markdown to HTML |
|
31
|
|
|
* |
|
32
|
|
|
* @param string $markdown Markdown |
|
33
|
|
|
* @return string HTML |
|
34
|
|
|
*/ |
|
35
|
|
|
public function toHtml($markdown) |
|
36
|
|
|
{ |
|
37
|
|
|
try { |
|
38
|
|
|
/** @var Psr\Http\Message\ResponseInterface $response */ |
|
39
|
|
|
$response = $this->getClient() |
|
40
|
|
|
->request( |
|
41
|
|
|
$this->getRequestMethod(), |
|
42
|
|
|
$this->getEndpoint(), |
|
43
|
|
|
array( |
|
44
|
|
|
'headers' => $this->getHeaders(), |
|
45
|
|
|
'body' => $markdown |
|
46
|
|
|
) |
|
47
|
|
|
); |
|
48
|
|
|
} catch (ClientException $ex) { |
|
49
|
|
|
user_error($ex->getMessage()); |
|
50
|
|
|
return ''; |
|
51
|
|
|
} |
|
52
|
|
|
|
|
53
|
|
|
return (string) $response->getBody(); |
|
54
|
|
|
} |
|
55
|
|
|
|
|
56
|
|
|
/** |
|
57
|
|
|
* Get an instance of a GuzzleHttp client |
|
58
|
|
|
* @return GuzzleHttp\Client |
|
59
|
|
|
*/ |
|
60
|
|
|
public function getClient() |
|
61
|
|
|
{ |
|
62
|
|
|
if (is_null($this->client)) { |
|
63
|
|
|
$this->client = new Client( |
|
64
|
|
|
array( |
|
65
|
|
|
'base_uri' => $this->getBaseUri() |
|
66
|
|
|
) |
|
67
|
|
|
); |
|
68
|
|
|
} |
|
69
|
|
|
|
|
70
|
|
|
return $this->client; |
|
71
|
|
|
} |
|
72
|
|
|
|
|
73
|
|
|
/** |
|
74
|
|
|
* Get the GitHub base URI |
|
75
|
|
|
* @return string |
|
76
|
|
|
*/ |
|
77
|
|
|
public function getBaseUri() |
|
78
|
|
|
{ |
|
79
|
|
|
return self::API_BASE_URI; |
|
80
|
|
|
} |
|
81
|
|
|
|
|
82
|
|
|
/** |
|
83
|
|
|
* Get the HTTP request method to use for the request |
|
84
|
|
|
* @return string |
|
85
|
|
|
*/ |
|
86
|
|
|
public function getRequestMethod() |
|
87
|
|
|
{ |
|
88
|
|
|
return self::API_REQUEST_METHOD; |
|
89
|
|
|
} |
|
90
|
|
|
|
|
91
|
|
|
/** |
|
92
|
|
|
* Get the markdown parse endpoint for GitHub's API |
|
93
|
|
|
* @return string |
|
94
|
|
|
*/ |
|
95
|
|
|
public function getEndpoint() |
|
96
|
|
|
{ |
|
97
|
|
|
return self::API_RENDER_ENDPOINT; |
|
98
|
|
|
} |
|
99
|
|
|
|
|
100
|
|
|
/** |
|
101
|
|
|
* Get any custom headers to use for the request |
|
102
|
|
|
* @return array |
|
103
|
|
|
*/ |
|
104
|
|
|
public function getHeaders() |
|
105
|
|
|
{ |
|
106
|
|
|
return array( |
|
107
|
|
|
'User-Agent' => 'silverstripe/addons-site', |
|
108
|
|
|
'Content-Type' => 'text/x-markdown' |
|
109
|
|
|
); |
|
110
|
|
|
} |
|
111
|
|
|
} |
|
112
|
|
|
|
silverstripe /
addons.silverstripe.org
