bbp-private-groups / includes / user-view-post.php

user-view-post.php in Private groups trunk, at includes/user-view-post.php

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1	<?php
2	/*
3	* Conditional tag to check if a user can view a specific post, by checking if they can see the forum that it belongs to.
4	* Non-logged in site visitors cannot view posts if groups were selected for the forum they belong to.
5	* A user cannot view a post if their group role has not been selected in the meta box on the edit forum screen in the dashboard.
6	* If no groups were selected, all users and site visitors can view the content.
7
8	* Keymasters can always view, and moderators with no group set can view
9	*
10	*
11	*Some of this code is Justin Tadlocks' from the members plugin - thanks Justin for awesome work !
12	*/
13
14	function private_groups_can_user_view_post_id($forum_id) {
15	//get user ID
16	$user_id = wp_get_current_user()->ID;
17	//then check if they can view the forum the post belongs to
18	return private_groups_can_user_view_post($user_id, $forum_id);
19	}
20
21
22	function private_groups_can_user_view_post( $user_id, $forum_id = '' ) {
23	//the $forum_id that needs to be passed to this function is the forum_id that the post belongs to
24	global $rpg_topic_permissions ;
25
26	/* Assume the user can view the post at this point. */
27	$can_view = true;
28
29
30	/* Get the groups for the forum */
31	$groups = get_post_meta( $forum_id, '_private_group', false );
32
33	/* If we have groups set for this forum let's get to work. */
34	if ( !empty( $groups ) && is_array( $groups ) ) {
35
36	/**
37	* Since specific groups exist let's assume the user can't view the post at
38	* this point. The rest of this functionality should try to disprove this.
39	*/
40	$can_view = false;
41
42	/* If the user's not logged in, assume it's blocked at this point. */
43	if (!is_user_logged_in() ) {
44	//check if topic permissions is set, and if so if non-logged in users can view this forum
45	$tp = '_private_group_nonloggedin' ;
46	$value = get_post_meta( $forum_id, $tp, true);
47	if (!empty ($rpg_topic_permissions['activate']) && (!empty ($value))) {
48	//then anyone can view this forum
49	$can_view = true;
50	}
51	else
52	$can_view = false;
53	}
54
55
56	/Check if user is keymaster/
57	if ( bbp_is_user_keymaster($user_id)) $can_view = true;
58	//now we'll check if the user is a moderator.
59	else {
60	$role = bbp_get_user_role( $user_id );
61	$check=get_user_meta( $user_id, 'private_group',true);
62
63	//if they are a mod, and they have no forum groups set, then they can moderate and see across all forums
64	if ($role == 'bbp_moderator' && (empty($check))) {
65	$can_view= true ;
66	//otherwise if they are a moderator with groups set, then they can see (and moderate) only their visible forums
67	//- just as everyone else does
68
69	}
70	/* Else, let's check the user's group against the selected group. */
71	else {
72
73	/* Loop through each group and set $can_view to true if the user has this group. */
74	$check=get_user_meta( $user_id, 'private_group',true);
75
76
77	foreach ( $groups as $group ) {
78	//single group set?
79	if ($check==$group ) $can_view = true;
80	//multiple group set
81	if (strpos($check, ''.$group.'') !== FALSE) $can_view = true;
82
83
84	}
85	}
86	}
87
88
89	}
90	//else allow for private and hidden forums that don't have groups set
91	//my assumption is that by creating an allowed list (post__in) I override wordpress/bbpress checking if a forum can be displayed to the user, so it displays anyway - this fixes that
92	else {
93	//check if forum is private or hidden and see if user is allowed to view
94	$status = get_post_status ($forum_id) ;
95	if ($status == 'hidden' && !current_user_can( 'read_hidden_forums' )) $can_view = false ;
96	if ($status == 'private' && !current_user_can( 'read_private_forums' )) $can_view = false ;
97	}
98
99
100	/* Allow developers to overwrite the final return value. */
101	return apply_filters( 'private_groups_can_user_view_post', $can_view, $user_id, $forum_id );
102
103	}
104	?>
105