aboutsummaryrefslogtreecommitdiffstats
path: root/Zotlabs/Lib/Permcat.php
blob: ca4aed9ed7f881eb20067b612d80ddfb78f52044 (plain) (blame)
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
181
182
183
184
185
186
<?php

namespace Zotlabs\Lib;

use Zotlabs\Access\PermissionRoles;
use Zotlabs\Access\Permissions;

/**
 * @brief Permission Categories. Permission rules for various classes of connections.
 *
 * Connection permissions answer the question "Can Joe view my photos?"
 *
 * Some permissions may be inherited from the channel's "privacy settings"
 * (@ref ::Zotlabs::Access::PermissionLimits "PermissionLimits") "Who can view my
 * photos (at all)?" which have higher priority than individual connection settings.
 * We evaluate permission limits first, and then fall through to connection
 * permissions if the permission limits didn't already make a definitive decision.
 *
 * After PermissionLimits and connection permissions are evaluated, individual
 * content ACLs are evaluated (@ref ::Zotlabs::Access::AccessList "AccessList").
 * These answer the question "Can Joe view *this* album/photo?".
 */
class Permcat {

	/**
	 * @var array
	 */
	private $permcats = [];

	/**
	 * @brief Permcat constructor.
	 *
	 * @param int $channel_id
	 */
	public function __construct($channel_id) {

		$perms = [];

		// first check role perms for a perms_connect setting

		$role = get_pconfig($channel_id,'system','permissions_role');
		if($role) {
			$x = PermissionRoles::role_perms($role);
			if($x['perms_connect']) {
				$perms = Permissions::FilledPerms($x['perms_connect']);
			}
		}

		// if no role perms it may be a custom role, see if there any autoperms

		if(! $perms) {
			$perms = Permissions::FilledAutoPerms($channel_id);
		}

		// if no autoperms it may be a custom role with manual perms

		if(! $perms) {
			$r = q("select channel_hash from channel where channel_id = %d",
				intval($channel_id)
			);
			if($r) {
				$x = q("select * from abconfig where chan = %d and xchan = '%s' and cat = 'my_perms'",
					intval($channel_id),
					dbesc($r[0]['channel_hash'])
				);
				if($x) {
					foreach($x as $xv) {
						$perms[$xv['k']] = intval($xv['v']);
					}
				}
			}
		}

		// nothing was found - create a filled permission array where all permissions are 0

		if(! $perms) {
			$perms = Permissions::FilledPerms([]);
		}

		$this->permcats[] = [
			'name'      => 'default',
			'localname' => t('default','permcat'),
			'perms'     => Permissions::Operms($perms),
			'system'    => 1
		];


		$p = $this->load_permcats($channel_id);
		if($p) {
			for($x = 0; $x < count($p); $x++) {
				$this->permcats[] = [
					'name'      => $p[$x][0],
					'localname' => $p[$x][1],
					'perms'     => Permissions::Operms(Permissions::FilledPerms($p[$x][2])),
					'system'    => intval($p[$x][3])
				];
			}
		}
	}

	/**
	 * @brief Return array with permcats.
	 *
	 * @return array
	 */
	public function listing() {
		return $this->permcats;
	}

	/**
	 * @brief
	 *
	 * @param string $name
	 * @return array
	 *   * \e array with permcats
	 *   * \e bool \b error if $name not found in permcats true
	 */
	public function fetch($name) {
		if($name && $this->permcats) {
			foreach($this->permcats as $permcat) {
				if(strcasecmp($permcat['name'], $name) === 0) {
					return $permcat;
				}
			}
		}

		return ['error' => true];
	}

	public function load_permcats($uid) {

		$permcats = [
			[ 'follower', t('follower','permcat'),
				[ 'view_stream','view_profile','view_contacts','view_storage','view_pages','view_wiki',
				  'post_like' ], 1
			],
			[ 'contributor', t('contributor','permcat'),
				[ 'view_stream','view_profile','view_contacts','view_storage','view_pages','view_wiki',
				  'post_wall','post_comments','write_wiki','post_like','tag_deliver','chat' ], 1
			],
			[ 'publisher', t('publisher','permcat'),
				[ 'view_stream','view_profile','view_contacts','view_storage','view_pages',
				  'write_storage','post_wall','write_pages','write_wiki','post_comments','post_like','tag_deliver',
				  'chat', 'republish' ], 1
			]
		];

		if($uid) {
			$x = q("select * from pconfig where uid = %d and cat = 'permcat'",
				intval($uid)
			);
			if($x) {
				foreach($x as $xv) {
					$value = ((preg_match('|^a:[0-9]+:{.*}$|s', $xv['v'])) ? unserialize($xv['v']) : $xv['v']);
					$permcats[] = [ $xv['k'], $xv['k'], $value, 0 ];
				}
			}
		}

		/**
		 * @hooks permcats
		 *   * \e array
		 */
		call_hooks('permcats', $permcats);

		return $permcats;
	}

	static public function find_permcat($arr, $name) {
		if((! $arr) || (! $name))
			return false;

		foreach($arr as $p)
			if($p['name'] == $name)
				return $p['value'];
	}

	static public function update($channel_id, $name, $permarr) {
		PConfig::Set($channel_id, 'permcat', $name, $permarr);
	}

	static public function delete($channel_id, $name) {
		PConfig::Delete($channel_id, 'permcat', $name);
	}

}