213 lines
7.1 KiB
PHP
213 lines
7.1 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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* Status: Unsupported
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*/
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use Friendica\Core\Addon;
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use Friendica\Core\Config;
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use Friendica\Core\L10n;
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use Friendica\Core\PConfig;
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use Friendica\Core\Renderer;
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use Friendica\Database\DBA;
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use Friendica\Util\Strings;
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function remote_permissions_install() {
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Addon::registerHook('lockview_content', 'addon/remote_permissions/remote_permissions.php', 'remote_permissions_content');
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Addon::registerHook('addon_settings', 'addon/remote_permissions/remote_permissions.php', 'remote_permissions_settings');
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Addon::registerHook('addon_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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Addon::unregisterHook('lockview_content', 'addon/remote_permissions/remote_permissions.php', 'remote_permissions_content');
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Addon::unregisterHook('addon_settings', 'addon/remote_permissions/remote_permissions.php', 'remote_permissions_settings');
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Addon::unregisterHook('addon_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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$global = Config::get("remote_perms", "global");
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if($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="' . $a->getBaseURL() . '/addon/remote_permissions/settings.css' . '" media="all" />' . "\r\n";
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/* Get the current state of our config variable */
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$remote_perms = PConfig::get(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 = Renderer::getMarkupTemplate("settings.tpl", "addon/remote_permissions/" );
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$o .= Renderer::replaceMacros($t, [
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'$remote_perms_title' => L10n::t('Remote Permissions Settings'),
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'$remote_perms_label' => L10n::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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'$submit' => L10n::t('Save Settings')
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]);
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}
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function remote_permissions_settings_post($a,$post) {
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if(! local_user() || (! x($_POST,'remote-perms-submit')))
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return;
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PConfig::set(local_user(),'remote_perms','show',intval($_POST['remote-perms']));
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info(L10n::t('Remote Permissions settings updated.') . EOL);
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}
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function remote_permissions_content($a, $item_copy) {
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if($item_copy['uid'] != local_user())
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return;
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if(Config::get('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 = $a->getBaseURL();
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$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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DBA::escape($nick)
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);
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if(! $r)
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return;
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if(PConfig::get($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 = [];
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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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DBA::escape($item_copy['uri'])
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);
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}
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else {
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// Lockview for a comment
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$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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DBA::escape($item_copy['uri']),
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DBA::escape($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 = L10n::t('Visible to:') . '<br />';
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$allow = [];
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$deny = [];
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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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DBA::escape(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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DBA::escape(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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$r = q("SELECT name FROM contact WHERE id IN ( %s )",
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DBA::escape(implode(', ', array_diff($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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DBA::escape($item_copy['uri']),
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DBA::escape($item_copy['guid'])
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);
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if(! $r)
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return;
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$allow = [];
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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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DBA::escape(implode(', ', $allow))
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);
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if(! $r)
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return;
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$o = L10n::t('Visible to') . ' (' . L10n::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(', ', $allow_names);
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killme();
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}
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return;
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}
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function remote_permissions_addon_admin(&$a, &$o){
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$t = Renderer::getMarkupTemplate( "admin.tpl", "addon/remote_permissions/" );
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$o = Renderer::replaceMacros($t, [
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'$submit' => L10n::t('Save Settings'),
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'$global' => ['remotepermschoice', L10n::t('Global'), 1, L10n::t('The posts of every user on this server show the post recipients'), Config::get('remote_perms', 'global') == 1],
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'$individual' => ['remotepermschoice', L10n::t('Individual'), 2, L10n::t('Each user chooses whether his/her posts show the post recipients'), Config::get('remote_perms', 'global') == 0]
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]);
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}
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function remote_permissions_addon_admin_post(&$a){
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$choice = ((x($_POST,'remotepermschoice')) ? Strings::escapeTags(trim($_POST['remotepermschoice'])) : '');
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Config::set('remote_perms','global',($choice == 1 ? 1 : 0));
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info(L10n::t('Settings updated.'). EOL);
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}
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