forked from friendica/friendica-addons
		
	
		
			
				
	
	
		
			207 lines
		
	
	
	
		
			6.7 KiB
		
	
	
	
		
			PHP
		
	
	
	
	
	
			
		
		
	
	
			207 lines
		
	
	
	
		
			6.7 KiB
		
	
	
	
		
			PHP
		
	
	
	
	
	
<?php
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/**
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 * Name: Remote Permissions
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 * Description: Allow the recipients of private posts to see who else can see the post by clicking the lock icon
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 * Version: 1.0
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 * Author: Zach <https://f.shmuz.in/profile/techcity>
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 * 
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 */
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function remote_permissions_install() {
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	register_hook('lockview_content', 'addon/remote_permissions/remote_permissions.php', 'remote_permissions_content');
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	register_hook('plugin_settings', 'addon/remote_permissions/remote_permissions.php', 'remote_permissions_settings');
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	register_hook('plugin_settings_post', 'addon/remote_permissions/remote_permissions.php', 'remote_permissions_settings_post');
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}
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function remote_permissions_uninstall() {
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	unregister_hook('lockview_content', 'addon/remote_permissions/remote_permissions.php', 'remote_permissions_content');
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	unregister_hook('plugin_settings', 'addon/remote_permissions/remote_permissions.php', 'remote_permissions_settings');
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	unregister_hook('plugin_settings_post', 'addon/remote_permissions/remote_permissions.php', 'remote_permissions_settings_post');
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}
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function remote_permissions_settings(&$a,&$o) {
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	if(! local_user())
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		return;
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	$global = get_config("remote_perms", "global");
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	if($global == 1)
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		return;
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	/* Add our stylesheet to the page so we can make our settings look nice */
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	$a->page['htmlhead'] .= '<link rel="stylesheet"  type="text/css" href="' . $a->get_baseurl() . '/addon/remote_permissions/settings.css' . '" media="all" />' . "\r\n";
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	/* Get the current state of our config variable */
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	$remote_perms = get_pconfig(local_user(),'remote_perms','show');
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	/* Add some HTML to the existing form */
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//	$t = file_get_contents("addon/remote_permissions/settings.tpl" );
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	$t = get_markup_template("settings.tpl", "addon/remote_permissions/" );
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	$o .= replace_macros($t, array(
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		'$remote_perms_title' => t('Remote Permissions Settings'),
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		'$remote_perms_label' => t('Allow recipients of your private posts to see the other recipients of the posts'),
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		'$checked' => (($remote_perms == 1) ? 'checked="checked"' : ''),
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		'$submit' => t('Submit')
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	));
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}
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function remote_permissions_settings_post($a,$post) {
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	if(! local_user() || (! x($_POST,'remote-perms-submit')))
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		return;
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	set_pconfig(local_user(),'remote_perms','show',intval($_POST['remote-perms']));
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	info( t('Remote Permissions settings updated.') . EOL);
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}
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function remote_permissions_content($a, $item_copy) {
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	if($item_copy['uid'] != local_user())
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		return;
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	if(get_config('remote_perms','global') == 0) {
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		// Admin has set Individual choice. We need to find
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		// the original poster. First, get the contact's info
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		$r = q("SELECT nick, url FROM contact WHERE id = %d LIMIT 1",
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		       intval($item_copy['contact-id'])
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		);
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		if(! $r) 
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			return;
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		// Find out if the contact lives here
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		$baseurl = $a->get_baseurl();
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		$baseurl = substr($baseurl, strpos($baseurl, '://') + 3);
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		if(strpos($r[0]['url'], $baseurl) === false)
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			return;
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		// The contact lives here. Get his/her user info
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		$nick = $r[0]['nick'];
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		$r = q("SELECT uid FROM user WHERE nickname = '%s' LIMIT 1",
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		       dbesc($nick)
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		);
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		if(! $r)
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			return;
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		if(get_pconfig($r[0]['uid'],'remote_perms','show') == 0)
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			return;
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	}
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	if(($item_copy['private'] == 1) && (! strlen($item_copy['allow_cid'])) && (! strlen($item_copy['allow_gid']))
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		&& (! strlen($item_copy['deny_cid'])) && (! strlen($item_copy['deny_gid']))) {
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		$allow_names = array();
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		// Check for the original post here -- that's the only way
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		// to definitely get all of the recipients
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		if($item_copy['uri'] === $item_copy['parent-uri']) {
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			// Lockview for a top-level post
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			$r = q("SELECT allow_cid, allow_gid, deny_cid, deny_gid FROM item WHERE uri = '%s' AND type = 'wall' LIMIT 1",
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				   dbesc($item_copy['uri'])
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			);
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		}
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		else {
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			// Lockview for a comment
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			$r = q("SELECT allow_cid, allow_gid, deny_cid, deny_gid FROM item WHERE uri = '%s'
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			        AND parent = ( SELECT id FROM item WHERE uri = '%s' AND type = 'wall' ) LIMIT 1",
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				   dbesc($item_copy['uri']),
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				   dbesc($item_copy['parent-uri'])
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			);
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		}
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		if($r) {
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			$item = $r[0];
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			$allowed_users = expand_acl($item['allow_cid']);
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			$allowed_groups = expand_acl($item['allow_gid']);
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			$deny_users = expand_acl($item['deny_cid']);
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			$deny_groups = expand_acl($item['deny_gid']);
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			$o = t('Visible to:') . '<br />';
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			$allow = array();
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			$deny = array();
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			if(count($allowed_groups)) {
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				$r = q("SELECT DISTINCT `contact-id` FROM group_member WHERE gid IN ( %s )",
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					dbesc(implode(', ', $allowed_groups))
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				);
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				foreach($r as $rr) 
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					$allow[] = $rr['contact-id'];
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			}
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			$allow = array_unique($allow + $allowed_users);
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			if(count($deny_groups)) {
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				$r = q("SELECT DISTINCT `contact-id` FROM group_member WHERE gid IN ( %s )",
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					dbesc(implode(', ', $deny_groups))
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				);
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				foreach($r as $rr) 
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					$deny[] = $rr['contact-id'];
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			}
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			$deny = $deny + $deny_users;
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			if($allow)
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			{
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				$r = q("SELECT name FROM contact WHERE id IN ( %s )",
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					   dbesc(implode(', ', array_diff($allow, $deny)))
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				);
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				foreach($r as $rr)
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					$allow_names[] = $rr['name'];
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			}
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		}
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		else {
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			// We don't have the original post. Let's try for the next best thing:
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			// checking who else has the post on our own server. Note that comments
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			// that were sent to Diaspora and were relayed to others on our server
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			// will have different URIs than the original. We can match the GUID for
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			// those
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			$r = q("SELECT `uid` FROM item WHERE uri = '%s' OR guid = '%s'",
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				   dbesc($item_copy['uri']),
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			       dbesc($item_copy['guid'])
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			);
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			if(! $r)
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				return;
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			$allow = array();
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			foreach($r as $rr)
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				$allow[] = $rr['uid'];
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			$r = q("SELECT username FROM user WHERE uid IN ( %s )",
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				dbesc(implode(', ', $allow))
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			);
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			if(! $r)
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				return;
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			$o = t('Visible to') . ' (' . t('may only be a partial list') . '):<br />';
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			foreach($r as $rr)
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				$allow_names[] = $rr['username'];
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		}
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		// Sort the names alphabetically, case-insensitive
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		natcasesort($allow_names);
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		echo $o . implode(', ', $allow_names);
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		killme();
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	}
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	return;
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}
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function remote_permissions_plugin_admin(&$a, &$o){
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	$t = get_markup_template( "admin.tpl", "addon/remote_permissions/" );
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	$o = replace_macros($t, array(
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		'$submit' => t('Submit'),
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		'$global' => array('remotepermschoice', t('Global'), 1, t('The posts of every user on this server show the post recipients'),  get_config('remote_perms', 'global') == 1),
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		'$individual' => array('remotepermschoice', t('Individual'), 2, t('Each user chooses whether his/her posts show the post recipients'),  get_config('remote_perms', 'global') == 0)
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	));
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}
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function remote_permissions_plugin_admin_post(&$a){
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	$choice	=	((x($_POST,'remotepermschoice'))		? notags(trim($_POST['remotepermschoice']))	: '');
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	set_config('remote_perms','global',($choice == 1 ? 1 : 0));
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	info( t('Settings updated.'). EOL );
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}
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