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<?php /** @file */
namespace Zotlabs\Lib;
require_once('boot.php');
require_once('include/text.php');
require_once('include/items.php');
/**
* A list of threads
*
*/
class ThreadStream {
private $threads = array();
private $mode = null;
private $observer = null;
private $writable = false;
private $commentable = false;
private $uploadable = false;
private $profile_owner = 0;
private $preview = false;
private $prepared_item = '';
public $reload = '';
private $cipher = 'AES-128-CCM';
// $prepared_item is for use by alternate conversation structures such as photos
// wherein we've already prepared a top level item which doesn't look anything like
// a normal "post" item
public function __construct($mode, $preview, $uploadable, $prepared_item = '') {
$this->set_mode($mode);
$this->preview = $preview;
$this->uploadable = $uploadable;
$this->prepared_item = $prepared_item;
$c = ((local_channel()) ? get_pconfig(local_channel(),'system','default_cipher') : '');
if($c)
$this->cipher = $c;
}
/**
* Set the mode we'll be displayed on
*/
private function set_mode($mode) {
if($this->get_mode() == $mode)
return;
$this->observer = \App::get_observer();
$ob_hash = (($this->observer) ? $this->observer['xchan_hash'] : '');
switch($mode) {
case 'network':
$this->profile_owner = local_channel();
$this->writable = true;
break;
case 'pubstream':
$this->profile_owner = local_channel();
$this->writable = ((local_channel()) ? true : false);
break;
case 'hq':
$this->profile_owner = local_channel();
$this->writable = true;
break;
case 'channel':
$this->profile_owner = \App::$profile['profile_uid'];
$this->writable = perm_is_allowed($this->profile_owner,$ob_hash,'post_comments');
break;
case 'cards':
$this->profile_owner = \App::$profile['profile_uid'];
$this->writable = perm_is_allowed($this->profile_owner,$ob_hash,'post_comments');
$this->reload = $_SESSION['return_url'];
break;
case 'articles':
$this->profile_owner = \App::$profile['profile_uid'];
$this->writable = perm_is_allowed($this->profile_owner,$ob_hash,'post_comments');
$this->reload = $_SESSION['return_url'];
break;
case 'display':
// in this mode we set profile_owner after initialisation (from conversation()) and then
// pull some trickery which allows us to re-invoke this function afterward
// it's an ugly hack so @FIXME
$this->writable = perm_is_allowed($this->profile_owner,$ob_hash,'post_comments');
$this->uploadable = perm_is_allowed($this->profile_owner,$ob_hash,'write_storage');
break;
case 'page':
$this->profile_owner = \App::$profile['uid'];
$this->writable = perm_is_allowed($this->profile_owner,$ob_hash,'post_comments');
break;
default:
logger('[ERROR] Conversation::set_mode : Unhandled mode ('. $mode .').', LOGGER_DEBUG);
return false;
break;
}
$this->mode = $mode;
}
/**
* Get mode
*/
public function get_mode() {
return $this->mode;
}
/**
* Check if page is writable
*/
public function is_writable() {
return $this->writable;
}
public function is_commentable() {
return $this->commentable;
}
public function is_uploadable() {
return $this->uploadable;
}
/**
* Check if page is a preview
*/
public function is_preview() {
return $this->preview;
}
/**
* Get profile owner
*/
public function get_profile_owner() {
return $this->profile_owner;
}
public function set_profile_owner($uid) {
$this->profile_owner = $uid;
$mode = $this->get_mode();
$this->mode = null;
$this->set_mode($mode);
}
public function get_observer() {
return $this->observer;
}
public function get_cipher() {
return $this->cipher;
}
/**
* Add a thread to the conversation
*
* Returns:
* _ The inserted item on success
* _ false on failure
*/
public function add_thread($item) {
$item_id = $item->get_id();
if(!$item_id) {
logger('Item has no ID!!', LOGGER_DEBUG, LOG_ERR);
return false;
}
if($this->get_thread($item->get_id())) {
logger('Thread already exists ('. $item->get_id() .').', LOGGER_DEBUG, LOG_WARNING);
return false;
}
/*
* Only add things that will be displayed
*/
if(($item->get_data_value('id') != $item->get_data_value('parent')) && (activity_match($item->get_data_value('verb'),ACTIVITY_LIKE) || activity_match($item->get_data_value('verb'),ACTIVITY_DISLIKE))) {
return false;
}
$item->set_commentable(false);
$ob_hash = (($this->observer) ? $this->observer['xchan_hash'] : '');
if(! comments_are_now_closed($item->get_data())) {
if(($item->get_data_value('author_xchan') === $ob_hash) || ($item->get_data_value('owner_xchan') === $ob_hash))
$item->set_commentable(true);
if(intval($item->get_data_value('item_nocomment'))) {
$item->set_commentable(false);
}
elseif(! $item->is_commentable()) {
if((array_key_exists('owner',$item->data)) && intval($item->data['owner']['abook_self']))
$item->set_commentable(perm_is_allowed($this->profile_owner,$ob_hash,'post_comments'));
else
$item->set_commentable(can_comment_on_post($ob_hash,$item->data));
}
}
if($this->mode === 'pubstream' && (! local_channel())) {
$item->set_commentable(false);
}
$item->set_conversation($this);
$this->threads[] = $item;
return end($this->threads);
}
/**
* Get data in a form usable by a conversation template
*
* We should find a way to avoid using those arguments (at least most of them)
*
* Returns:
* _ The data requested on success
* _ false on failure
*/
public function get_template_data($conv_responses) {
$result = array();
foreach($this->threads as $item) {
if(($item->get_data_value('id') == $item->get_data_value('parent')) && $this->prepared_item) {
$item_data = $this->prepared_item;
}
else {
$item_data = $item->get_template_data($conv_responses);
}
if(!$item_data) {
logger('Failed to get item template data ('. $item->get_id() .').', LOGGER_DEBUG, LOG_ERR);
return false;
}
$result[] = $item_data;
}
return $result;
}
/**
* Get a thread based on its item id
*
* Returns:
* _ The found item on success
* _ false on failure
*/
private function get_thread($id) {
foreach($this->threads as $item) {
if($item->get_id() == $id)
return $item;
}
return false;
}
}
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