|
1
|
|
|
<?php |
|
2
|
|
|
/** |
|
3
|
|
|
* @copyright Copyright (c) 2017 Robin Appelman <[email protected]> |
|
4
|
|
|
* |
|
5
|
|
|
* @license GNU AGPL version 3 or any later version |
|
6
|
|
|
* |
|
7
|
|
|
* This program is free software: you can redistribute it and/or modify |
|
8
|
|
|
* it under the terms of the GNU Affero General Public License as |
|
9
|
|
|
* published by the Free Software Foundation, either version 3 of the |
|
10
|
|
|
* License, or (at your option) any later version. |
|
11
|
|
|
* |
|
12
|
|
|
* This program is distributed in the hope that it will be useful, |
|
13
|
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of |
|
14
|
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
|
15
|
|
|
* GNU Affero General Public License for more details. |
|
16
|
|
|
* |
|
17
|
|
|
* You should have received a copy of the GNU Affero General Public License |
|
18
|
|
|
* along with this program. If not, see <http://www.gnu.org/licenses/>. |
|
19
|
|
|
* |
|
20
|
|
|
*/ |
|
21
|
|
|
|
|
22
|
|
|
namespace OC\Remote; |
|
23
|
|
|
|
|
24
|
|
|
use OC\Remote\Api\NotFoundException; |
|
25
|
|
|
use OCP\Http\Client\IClientService; |
|
26
|
|
|
use OCP\ICache; |
|
27
|
|
|
use OCP\Remote\IInstance; |
|
28
|
|
|
|
|
29
|
|
|
/** |
|
30
|
|
|
* Provides some basic info about a remote Nextcloud instance |
|
31
|
|
|
*/ |
|
32
|
|
|
class Instance implements IInstance { |
|
33
|
|
|
/** @var string */ |
|
34
|
|
|
private $url; |
|
35
|
|
|
|
|
36
|
|
|
/** @var ICache */ |
|
37
|
|
|
private $cache; |
|
38
|
|
|
|
|
39
|
|
|
/** @var IClientService */ |
|
40
|
|
|
private $clientService; |
|
41
|
|
|
|
|
42
|
|
|
/** @var array|null */ |
|
43
|
|
|
private $status; |
|
44
|
|
|
|
|
45
|
|
|
/** |
|
46
|
|
|
* @param string $url |
|
47
|
|
|
* @param ICache $cache |
|
48
|
|
|
* @param IClientService $clientService |
|
49
|
|
|
*/ |
|
50
|
|
|
public function __construct($url, ICache $cache, IClientService $clientService) { |
|
51
|
|
|
$url = str_replace('https://', '', $url); |
|
52
|
|
|
$this->url = str_replace('http://', '', $url); |
|
53
|
|
|
$this->cache = $cache; |
|
54
|
|
|
$this->clientService = $clientService; |
|
55
|
|
|
} |
|
56
|
|
|
|
|
57
|
|
|
/** |
|
58
|
|
|
* @return string The url of the remote server without protocol |
|
59
|
|
|
*/ |
|
60
|
|
|
public function getUrl() { |
|
61
|
|
|
return $this->url; |
|
62
|
|
|
} |
|
63
|
|
|
|
|
64
|
|
|
/** |
|
65
|
|
|
* @return string The of of the remote server with protocol |
|
66
|
|
|
*/ |
|
67
|
|
|
public function getFullUrl() { |
|
68
|
|
|
return $this->getProtocol() . '://' . $this->getUrl(); |
|
69
|
|
|
} |
|
70
|
|
|
|
|
71
|
|
|
/** |
|
72
|
|
|
* @return string The full version string in '13.1.2.3' format |
|
73
|
|
|
*/ |
|
74
|
|
|
public function getVersion() { |
|
75
|
|
|
$status = $this->getStatus(); |
|
76
|
|
|
return $status['version']; |
|
77
|
|
|
} |
|
78
|
|
|
|
|
79
|
|
|
/** |
|
80
|
|
|
* @return string 'http' or 'https' |
|
81
|
|
|
*/ |
|
82
|
|
|
public function getProtocol() { |
|
83
|
|
|
$status = $this->getStatus(); |
|
84
|
|
|
return $status['protocol']; |
|
85
|
|
|
} |
|
86
|
|
|
|
|
87
|
|
|
/** |
|
88
|
|
|
* Check that the remote server is installed and not in maintenance mode |
|
89
|
|
|
* |
|
90
|
|
|
* @return bool |
|
91
|
|
|
*/ |
|
92
|
|
|
public function isActive() { |
|
93
|
|
|
$status = $this->getStatus(); |
|
94
|
|
|
return $status['installed'] && !$status['maintenance']; |
|
95
|
|
|
} |
|
96
|
|
|
|
|
97
|
|
|
/** |
|
98
|
|
|
* @return array |
|
99
|
|
|
* @throws NotFoundException |
|
100
|
|
|
* @throws \Exception |
|
101
|
|
|
*/ |
|
102
|
|
|
private function getStatus() { |
|
103
|
|
|
if ($this->status) { |
|
104
|
|
|
return $this->status; |
|
105
|
|
|
} |
|
106
|
|
|
$key = 'remote/' . $this->url . '/status'; |
|
107
|
|
|
$httpsKey = 'remote/' . $this->url . '/https'; |
|
108
|
|
|
$status = $this->cache->get($key); |
|
109
|
|
|
if (!$status) { |
|
110
|
|
|
$response = $this->downloadStatus('https://' . $this->getUrl() . '/status.php'); |
|
111
|
|
|
$protocol = 'https'; |
|
112
|
|
|
if (!$response) { |
|
113
|
|
|
if ($status = $this->cache->get($httpsKey)) { |
|
|
|
|
|
|
114
|
|
|
throw new \Exception('refusing to connect to remote instance(' . $this->url . ') over http that was previously accessible over https'); |
|
115
|
|
|
} |
|
116
|
|
|
$response = $this->downloadStatus('http://' . $this->getUrl() . '/status.php'); |
|
117
|
|
|
$protocol = 'http'; |
|
118
|
|
|
} else { |
|
119
|
|
|
$this->cache->set($httpsKey, true, 60 * 60 * 24 * 365); |
|
120
|
|
|
} |
|
121
|
|
|
$status = json_decode($response, true); |
|
122
|
|
|
if ($status) { |
|
123
|
|
|
$status['protocol'] = $protocol; |
|
124
|
|
|
} |
|
125
|
|
|
if ($status) { |
|
126
|
|
|
$this->cache->set($key, $status, 5 * 60); |
|
127
|
|
|
$this->status = $status; |
|
128
|
|
|
} else { |
|
129
|
|
|
throw new NotFoundException('Remote server not found at address ' . $this->url); |
|
130
|
|
|
} |
|
131
|
|
|
} |
|
132
|
|
|
return $status; |
|
133
|
|
|
} |
|
134
|
|
|
|
|
135
|
|
|
/** |
|
136
|
|
|
* @param string $url |
|
137
|
|
|
* @return bool|string |
|
138
|
|
|
*/ |
|
139
|
|
|
private function downloadStatus($url) { |
|
140
|
|
|
try { |
|
141
|
|
|
$request = $this->clientService->newClient()->get($url); |
|
142
|
|
|
return $request->getBody(); |
|
143
|
|
|
} catch (\Exception $e) { |
|
144
|
|
|
return false; |
|
145
|
|
|
} |
|
146
|
|
|
} |
|
147
|
|
|
} |
|
148
|
|
|
|
nextcloud /
server
This check looks for variable assignements that are either overwritten by other assignments or where the variable is not used subsequently.
Both the
$myVarassignment in line 1 and the$higherassignment in line 2 are dead. The first because$myVaris never used and the second because$higheris always overwritten for every possible time line.