<?php /** @file */ if(class_exists('Conversation')) return; require_once('boot.php'); require_once('include/BaseObject.php'); require_once('include/ItemObject.php'); require_once('include/text.php'); require_once('include/items.php'); /** * A list of threads * */ class Conversation extends BaseObject { private $threads = array(); private $mode = null; private $observer = null; private $writable = false; private $commentable = false; private $profile_owner = 0; private $preview = false; private $prepared_item = ''; private $cipher = 'aes256'; // $prepared_item is for use by alternate conversation structures such as photos // wherein we've already prepared a top level item which doesn't look anything like // a normal "post" item public function __construct($mode, $preview, $prepared_item = '') { $this->set_mode($mode); $this->preview = $preview; $this->prepared_item = $prepared_item; $c = ((local_user()) ? get_pconfig(local_user(),'system','default_cipher') : ''); if($c) $this->cipher = $c; } /** * Set the mode we'll be displayed on */ private function set_mode($mode) { if($this->get_mode() == $mode) return; $a = $this->get_app(); $this->observer = $a->get_observer(); $ob_hash = (($this->observer) ? $this->observer['xchan_hash'] : ''); switch($mode) { case 'network': if(array_key_exists('firehose',$a->data) && intval($a->data['firehose'])) { $this->profile_owner = intval($a->data['firehose']); $this->writable = false; } else { $this->profile_owner = local_user(); $this->writable = true; } break; case 'channel': $this->profile_owner = $a->profile['profile_uid']; $this->writable = perm_is_allowed($this->profile_owner,$ob_hash,'post_comments'); 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->profile_owner = $a->profile['uid']; $this->writable = perm_is_allowed($this->profile_owner,$ob_hash,'post_comments'); break; case 'page': $this->profile_owner = $a->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; } /** * 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('[ERROR] Conversation::add_thread : Item has no ID!!', LOGGER_DEBUG); return false; } if($this->get_thread($item->get_id())) { logger('[WARN] Conversation::add_thread : Thread already exists ('. $item->get_id() .').', LOGGER_DEBUG); return false; } /* * Only add things that will be displayed */ if(($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; } // if(local_user() && $item->get_data_value('uid') == local_user()) // $this->commentable = true; // if($this->writable) // $this->commentable = true; $item->set_commentable(false); $ob_hash = (($this->observer) ? $this->observer['xchan_hash'] : ''); if(($item->get_data_value('author_xchan') === $ob_hash) || ($item->get_data_value('owner_xchan') === $ob_hash)) $item->set_commentable(true); if($item->get_data_value('item_flags') & ITEM_NOCOMMENT) { $item->set_commentable(false); } elseif(($this->observer) && (! $item->is_commentable())) { if((array_key_exists('owner',$item->data)) && ($item->data['owner']['abook_flags'] & ABOOK_FLAG_SELF)) $item->set_commentable(perm_is_allowed($this->profile_owner,$this->observer['xchan_hash'],'post_comments')); else $item->set_commentable(can_comment_on_post($this->observer['xchan_hash'],$item->data)); } require_once('include/identity.php'); $sys = get_sys_channel(); if($sys && $item->get_data_value('uid') == $sys['channel_id']) { $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($alike, $dlike) { $result = array(); foreach($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 = $item->get_template_data($alike, $dlike); } if(!$item_data) { logger('[ERROR] Conversation::get_template_data : Failed to get item template data ('. $item->get_id() .').', LOGGER_DEBUG); 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; } }