1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
|
<?php
declare(strict_types=1);
/**
* @copyright Copyright (c) 2018, Michael Weimann <mail@michael-weimann.eu>
*
* @author Joas Schilling <coding@schilljs.com>
* @author Vincent Petry <vincent@nextcloud.com>
*
* @license GNU AGPL version 3 or any later version
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as
* published by the Free Software Foundation, either version 3 of the
* License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
*/
namespace OC\Avatar;
use OC\NotSquareException;
use OC\User\User;
use OCP\Files\NotFoundException;
use OCP\Files\NotPermittedException;
use OCP\Files\SimpleFS\ISimpleFile;
use OCP\Files\SimpleFS\ISimpleFolder;
use OCP\IConfig;
use OCP\IImage;
use OCP\IL10N;
use Psr\Log\LoggerInterface;
/**
* This class represents a registered user's placeholder avatar.
*
* It generates an image based on the user's initials and caches it on storage
* for faster retrieval, unlike the GuestAvatar.
*/
class PlaceholderAvatar extends Avatar {
/** @var ISimpleFolder */
private $folder;
/** @var User */
private $user;
/**
* UserAvatar constructor.
*
* @param IConfig $config The configuration
* @param ISimpleFolder $folder The avatar files folder
* @param IL10N $l The localization helper
* @param User $user The user this class manages the avatar for
* @param LoggerInterface $logger The logger
*/
public function __construct(
ISimpleFolder $folder,
$user,
LoggerInterface $logger) {
parent::__construct($logger);
$this->folder = $folder;
$this->user = $user;
}
/**
* Check if an avatar exists for the user
*
* @return bool
*/
public function exists() {
return true;
}
/**
* Sets the users avatar.
*
* @param IImage|resource|string $data An image object, imagedata or path to set a new avatar
* @throws \Exception if the provided file is not a jpg or png image
* @throws \Exception if the provided image is not valid
* @throws NotSquareException if the image is not square
* @return void
*/
public function set($data) {
// unimplemented for placeholder avatars
}
/**
* Removes the users avatar.
*/
public function remove(bool $silent = false) {
$avatars = $this->folder->getDirectoryListing();
foreach ($avatars as $avatar) {
$avatar->delete();
}
}
/**
* Returns the avatar for an user.
*
* If there is no avatar file yet, one is generated.
*
* @param int $size
* @return ISimpleFile
* @throws NotFoundException
* @throws \OCP\Files\NotPermittedException
* @throws \OCP\PreConditionNotMetException
*/
public function getFile($size) {
$size = (int) $size;
$ext = 'png';
if ($size === -1) {
$path = 'avatar-placeholder.' . $ext;
} else {
$path = 'avatar-placeholder.' . $size . '.' . $ext;
}
try {
$file = $this->folder->getFile($path);
} catch (NotFoundException $e) {
if ($size <= 0) {
throw new NotFoundException;
}
if (!$data = $this->generateAvatarFromSvg($size)) {
$data = $this->generateAvatar($this->getDisplayName(), $size);
}
try {
$file = $this->folder->newFile($path);
$file->putContent($data);
} catch (NotPermittedException $e) {
$this->logger->error('Failed to save avatar placeholder for ' . $this->user->getUID());
throw new NotFoundException();
}
}
return $file;
}
/**
* Returns the user display name.
*
* @return string
*/
public function getDisplayName(): string {
return $this->user->getDisplayName();
}
/**
* Handles user changes.
*
* @param string $feature The changed feature
* @param mixed $oldValue The previous value
* @param mixed $newValue The new value
* @throws NotPermittedException
* @throws \OCP\PreConditionNotMetException
*/
public function userChanged($feature, $oldValue, $newValue) {
$this->remove();
}
/**
* Check if the avatar of a user is a custom uploaded one
*
* @return bool
*/
public function isCustomAvatar(): bool {
return false;
}
}
|
