topics.php

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<?php

/*
+--------------------------------------------------------------------------
|   Invision Power Board v2.1.5
|   =============================================
|   by Matthew Mecham
|   (c) 2001 - 2005 Invision Power Services, Inc.
|   
|   =============================================
|   Web: 
|   Time: Wed, 01 Mar 2006 19:11:28 GMT
|   Release: 
|   Licence Info: 
+---------------------------------------------------------------------------
|   > $Date: 2006-01-05 11:02:13 +0000 (Thu, 05 Jan 2006) $
|   > $Revision: 114 $
|   > $Author: matt $
+---------------------------------------------------------------------------
|
|   > Topic display module
|   > Module written by Matt Mecham
|   > Date started: 18th February 2002
|
|	> Module Version Number: 1.1.0
|   > DBA Checked: Thu 20 May 2004
|   > Quality Checked: Wed 15 Sept. 2004
+--------------------------------------------------------------------------
*/


if ( ! defined( 'IN_IPB' ) )
{
	print "<h1>Incorrect access</h1>You cannot access this file directly. If you have recently upgraded, make sure you upgraded all the relevant files.";
	exit();
}

class topics
{
	# Global
	var $ipsclass;
	
    var $output         = "";
    var $base_url       = "";
    var $html           = "";
    var $moderator      = array();
    var $forum          = array();
    var $topic          = array();
    var $mem_titles     = array();
    var $mod_action     = array();
    var $poll_html      = "";
    var $parser         = "";
    var $mimetypes      = "";
    var $nav_extra      = "";
    var $read_array     = array();
    var $mod_panel_html = "";
    var $warn_range     = 0;
    var $warn_done      = 0;

    var $md5_check      = "";
    var $post_count     = 0;
    var $cached_members = array();
    var $first_printed  = 0;
    var $pids           = array();
    var $attach_pids    = array();
    var $first          = "";
    var $qpids          = "";
    var $custom_fields  = "";
    var $last_read_tid  = "";
    
    # Permissions
    var $can_vote		= 0;
	var $can_rate       = 0;
	
    /*-------------------------------------------------------------------------*/
	//
	// Our constructor, load words, load skin, print the topic listing
	//
	/*-------------------------------------------------------------------------*/
	
    function auto_run()
    {
    	//-----------------------------------------
    	// Build all permissions
    	//-----------------------------------------
    	
    	$this->build_permissions();
    	
    	//-----------------------------------------
    	// Are we just adding a poll vote?
    	//-----------------------------------------
    	
    	if ( $this->ipsclass->input['addpoll'] )
    	{
    		$this->topic_add_vote_to_poll();
    	}
    	
    	//-----------------------------------------
    	// INIT module
    	//-----------------------------------------
    	
        $this->init();
        
        //-----------------------------------------
    	// Are we just adding a rating vote?
    	//-----------------------------------------
    	
    	if ( $this->ipsclass->input['addrating'] )
    	{
    		$this->topic_add_vote_to_rating();
    	}
    	
        //-----------------------------------------
		// Process the topic
		//-----------------------------------------
        
        $this->topic_set_up();
        
        //-----------------------------------------
		// Which view are we using?
		//-----------------------------------------
		
		if ( $this->ipsclass->input['mode'] )
		{
			$this->topic_view_mode = $this->ipsclass->input['mode'];
			$this->ipsclass->my_setcookie( 'topicmode', $this->ipsclass->input['mode'], 1 );
		}
		else
		{
			$this->topic_view_mode = $this->ipsclass->my_getcookie('topicmode');
		}
		
		if ( ! $this->topic_view_mode )
		{
			//-----------------------------------------
			// No cookie and no URL
			//-----------------------------------------
			
			$this->topic_view_mode = $this->ipsclass->vars['topicmode_default'] ? $this->ipsclass->vars['topicmode_default'] : 'linear';
		}
        
        //-----------------------------------------
        // VIEWS
        //-----------------------------------------
        
        if ( isset($this->ipsclass->input['view']) )
        {
        	if ($this->ipsclass->input['view'] == 'new')
        	{
        		//-----------------------------------------
        		// Newer 
        		//-----------------------------------------
        		
        		$this->ipsclass->DB->simple_construct( array( 'select' => 'tid',
															  'from'   => 'topics',
															  'where'  => "forum_id=".$this->forum['id']." AND approved=1 AND state <> 'link' AND last_post > ".$this->topic['last_post'],
															  'order'  => 'last_post',
															  'limit'  => array( 0,1 )
													)      );
									
				$this->ipsclass->DB->simple_exec();
        		
        		if ( $this->ipsclass->DB->get_num_rows() )
        		{
        			$this->topic = $this->ipsclass->DB->fetch_row();
        			
        			$this->ipsclass->boink_it($this->ipsclass->base_url."showtopic=".$this->topic['tid']);
        		}
        		else
        		{
        			$this->ipsclass->Error( array( LEVEL => 1, MSG => 'no_newer') );
        		}
        	}
        	else if ($this->ipsclass->input['view'] == 'old')
        	{
        		//-----------------------------------------
        		// Older
        		//-----------------------------------------
        		
				$this->ipsclass->DB->simple_construct( array( 'select' => 'tid',
															  'from'   => 'topics',
															  'where'  => "forum_id=".$this->forum['id']." AND approved=1 AND state <> 'link' AND last_post < ".$this->topic['last_post'],
															  'order'  => 'last_post DESC',
															  'limit'  => array( 0,1 )
													)      );
									
				$this->ipsclass->DB->simple_exec();
					
				if ( $this->ipsclass->DB->get_num_rows() )
        		{
        			$this->topic = $this->ipsclass->DB->fetch_row();
        			
        			$this->ipsclass->boink_it($this->ipsclass->base_url."showtopic=".$this->topic['tid']);
        		}
        		else
        		{
        			$this->ipsclass->Error( array( LEVEL => 1, MSG => 'no_older') );
        		}
        	}
        	else if ($this->ipsclass->input['view'] == 'getlastpost')
        	{
        		//-----------------------------------------
        		// Last post
        		//-----------------------------------------
        		
        		$this->return_last_post();
			}
			else if ($this->ipsclass->input['view'] == 'getnewpost')
			{
				//-----------------------------------------
				// Newest post
				//-----------------------------------------
				
				$st  = 0;
				$pid = "";
				
				if ( $this->ipsclass->vars['db_topic_read_cutoff'] and $this->ipsclass->member['id'] )
				{
					$last_time = intval( $this->my_topics_read[ $this->topic['tid'] ] ) ? intval( $this->my_topics_read[ $this->topic['tid'] ] ) : intval( $this->db_row['marker_last_cleared'] );
				}
				
				$last_time = $last_time ? $last_time : $this->ipsclass->input['last_visit'];
				
				$this->ipsclass->DB->simple_construct( array( 'select' => 'MIN(pid) as pid',
															  'from'   => 'posts',
															  'where'  => "queued=0 AND topic_id=".$this->topic['tid']." AND post_date > ".intval($last_time),
															  'limit'  => array( 0,1 )
													)      );
						
				$this->ipsclass->DB->simple_exec();
				
				$post = $this->ipsclass->DB->fetch_row();
				
				if ( $post['pid'] )
				{
					$pid = "&#entry".$post['pid'];
					
					$this->ipsclass->DB->simple_construct( array( 'select' => 'COUNT(*) as posts',
																  'from'   => 'posts',
																  'where'  => "topic_id=".$this->topic['tid']." AND pid <= ".$post['pid'],
														)      );
										
					$this->ipsclass->DB->simple_exec();
				
					$cposts = $this->ipsclass->DB->fetch_row();
					
					if ( (($cposts['posts']) % $this->ipsclass->vars['display_max_posts']) == 0 )
					{
						$pages = ($cposts['posts']) / $this->ipsclass->vars['display_max_posts'];
					}
					else
					{
						$number = ( ($cposts['posts']) / $this->ipsclass->vars['display_max_posts'] );
						$pages = ceil( $number);
					}
					
					$st = ($pages - 1) * $this->ipsclass->vars['display_max_posts'];
					
					$this->ipsclass->boink_it($this->ipsclass->base_url."showtopic=".$this->topic['tid']."&st=$st".$pid);
				}
				else
				{
					$this->return_last_post();
				}
			}
			else if ($this->ipsclass->input['view'] == 'findpost')
			{
				//-----------------------------------------
				// Find a post
				//-----------------------------------------
				
				$pid = intval($this->ipsclass->input['p']);
				
				if ( $pid > 0 )
				{
					$this->ipsclass->DB->simple_construct( array( 'select' => 'COUNT(*) as posts',
																  'from'   => 'posts',
																  'where'  => "topic_id=".$this->topic['tid']." AND pid <= ".$pid,
														)      );
										
					$this->ipsclass->DB->simple_exec();
					
					$cposts = $this->ipsclass->DB->fetch_row();
					
					if ( (($cposts['posts']) % $this->ipsclass->vars['display_max_posts']) == 0 )
					{
						$pages = ($cposts['posts']) / $this->ipsclass->vars['display_max_posts'];
					}
					else
					{
						$number = ( ($cposts['posts']) / $this->ipsclass->vars['display_max_posts'] );
						$pages = ceil( $number);
					}
					
					$st = ($pages - 1) * $this->ipsclass->vars['display_max_posts'];
					
					$this->ipsclass->boink_it($this->ipsclass->base_url."showtopic=".$this->topic['tid']."&st=$st&p=$pid"."&#entry".$pid);
				}
				else
				{
					$this->return_last_post();
				}
			}
		}
		
		//-----------------------------------------
		// UPDATE TOPIC?
		//-----------------------------------------
		
		if ( ! $this->ipsclass->input['b'] )
		{
			if ( $this->topic['topic_firstpost'] < 1 )
			{
				//--------------------------------------
				// No first topic set - old topic, update
				//--------------------------------------
				
				$this->ipsclass->DB->simple_construct( array (
												'select' => 'pid',
												'from'   => 'posts',
												'where'  => 'topic_id='.$this->topic['tid'].' AND new_topic=1'
									 )       );
									 
				$this->ipsclass->DB->simple_exec();
				
				$post = $this->ipsclass->DB->fetch_row();
				
				if ( ! $post['pid'] )
				{
					//-----------------------------------------
					// Get first post info
					//-----------------------------------------
					
					$this->ipsclass->DB->simple_construct( array( 'select' => 'pid',
																  'from'   => 'posts',
																  'where'  => "topic_id={$this->topic['tid']}",
																  'order'  => 'pid ASC',
																  'limit'  => array(0,1) ) );
					$this->ipsclass->DB->simple_exec();
					
					$first_post  = $this->ipsclass->DB->fetch_row();
					$post['pid'] = $first_post['pid'];
				}
				
				if ( $post['pid'] )
				{
					$this->ipsclass->DB->simple_construct( array (
																  'update' => 'topics',
																  'set'    => 'topic_firstpost='.$post['pid'],
																  'where'  => 'tid='.$this->topic['tid']
										 )       );
										 
					$this->ipsclass->DB->simple_exec();
				}
				
				//--------------------------------------
				// Reload "fixed" topic
				//--------------------------------------
				
				$this->ipsclass->boink_it($this->ipsclass->base_url."showtopic=".$this->topic['tid']."&b=1&st={$this->ipsclass->input['st']}&p={$this->ipsclass->input['p']}"."&#entry".$this->ipsclass->input['p']);
			}
		}
		
		$find_pid = $this->ipsclass->input['pid'] == "" ? $this->ipsclass->input['p'] : $this->ipsclass->input['pid'];
		
		if ( $find_pid )
		{
			$threaded_pid = '&amp;pid='.$find_pid;
			$linear_pid   = '&amp;view=findpost&amp;p='.$find_pid;
		}
		
		if ( $this->topic_view_mode == 'threaded' )
		{
			$require = 'topic_threaded.php';
			
			$this->topic['to_button_threaded'] = $this->ipsclass->compiled_templates['skin_topic']->toutline_mode_choice_on(  "{$this->ipsclass->base_url}showtopic={$this->topic['tid']}&amp;mode=threaded".$threaded_pid, $this->ipsclass->lang['tom_outline'] );
			$this->topic['to_button_standard'] = $this->ipsclass->compiled_templates['skin_topic']->toutline_mode_choice_off( "{$this->ipsclass->base_url}showtopic={$this->topic['tid']}&amp;mode=linear".$linear_pid, $this->ipsclass->lang['tom_standard'] );
			$this->topic['to_button_linearpl'] = $this->ipsclass->compiled_templates['skin_topic']->toutline_mode_choice_off( "{$this->ipsclass->base_url}showtopic={$this->topic['tid']}&amp;mode=linearplus".$linear_pid, $this->ipsclass->lang['tom_linear'] );
			
		}
		else
		{
			$require = 'topic_linear.php';
			
			$this->topic['to_button_threaded'] = $this->ipsclass->compiled_templates['skin_topic']->toutline_mode_choice_off( "{$this->ipsclass->base_url}showtopic={$this->topic['tid']}&amp;mode=threaded".$threaded_pid, $this->ipsclass->lang['tom_outline'] );