plugins/nuggie/postbit.php
author Dan
Sat, 15 Mar 2008 15:19:42 -0400
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parent 2 4e7762863437
child 6 c51809bdf6af
permissions -rw-r--r--
Fixed a few bugs.
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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<?php
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/*
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 * Nuggie
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 * Version 0.1
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 * Copyright (C) 2007 Dan Fuhry
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 *
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 * This program is Free Software; you can redistribute and/or modify it under the terms of the GNU General Public License
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 * as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version.
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 *
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 * This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied
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 * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for details.
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 */
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/**
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 * Class for displaying a Nuggie blog post.
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 * @package Enano
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 * @subpackage Nuggie
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 */
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class NuggiePostbit
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{
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  /**
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   * The unique row ID of the post. This can be false if
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   * the post is being displayed as part of a preview or
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   * otherwise doesn't actually exist in the database.
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   * @var int
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   */
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  var $post_id = false;
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  /**
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   * The title of the post.
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   * @var string
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   */
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  var $post_title;
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  /**
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   * The cleaned title of the post. This is calculated
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   * internally and need not be set.
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   * @var string
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   */
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  var $post_title_clean;
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  /**
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   * Who wrote this post (user ID).
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   * @var int
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   */
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  var $post_author = 1;
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  /**
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   * When the post was posted. UNIX timestamp.
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   * @var int
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   */
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  var $post_timestamp = 1;
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  /**
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   * The actual content of the post.
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   * @var string
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   */
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  var $post_text = '';
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  /**
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   * Whether the user can edit the post or not.
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   * @var bool
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   */
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  var $auth_edit = false;
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  /**
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   * The number of comments on the post
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   * @var int
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   */
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  var $num_comments = 0;
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  /**
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   * The master permission set for the blog. Only used during pagination, don't worry about this
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   * @var object
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   */
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  var $blog_perms;
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  /**
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   * Renders the post.
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   */
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  function render_post()
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  {
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    global $db, $session, $paths, $template, $plugins; // Common objects
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    if ( empty($template->theme) )
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      $template->load_theme();
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    if ( file_exists( ENANO_ROOT . "/themes/{$template->theme}/blog_post.tpl" ) )
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    {
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      $parser = $template->makeParser('blog_post.tpl');
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    }
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    else
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    {
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      $tpl_code = <<<TPLBLOCK
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      <!-- Start of blog post -->
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      <div class="blog-post">
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        <div class="blog-post-header">
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          <div class="blog-post-datemark">
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            {DATE_D} {DATE_j}<br />
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            {DATE_M} {DATE_Y}
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          </div>
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          <h3><a href="{PERMALINK}">{POST_TITLE}</a></h3>
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          <div class="blog-post-author">
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            Posted by {USER_LINK} on {TIMESTAMP}
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          </div>
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          <div class="blog-post-buttons">
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          <a href="{PERMALINK}#do:comments" onclick="ajaxComments();">{COMMENT_STRING}</a>
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          <!-- BEGIN auth_edit -->
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          &bull;
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          <a href="{EDIT_LINK}">Edit this post</a>
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          <!-- END auth_edit -->
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          </div>
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        </div>
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        <div class="blog-post-body">
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          {POST_TEXT}
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        </div>
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      </div>
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      <!-- Finish blog post -->
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TPLBLOCK;
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      $parser = $template->makeParserText($tpl_code);
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    }
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    $this->post_title_clean = nuggie_sanitize_title($this->post_title);
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    // List of valid characters for date()
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    $date_chars = 'dDjlNSwzWFmMntLoYyaABgGhHiseIOTZcrU';
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    $date_chars = enano_str_split($date_chars);
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    $strings = array();
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    foreach ( $date_chars as $char )
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    {
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      $strings["DATE_$char"] = date($char, $this->post_timestamp);
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    }
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    $strings['POST_TITLE'] = htmlspecialchars($this->post_title);
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    $strings['POST_TEXT'] = RenderMan::render($this->post_text);
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    $strings['PERMALINK'] = makeUrlNS('Blog', $this->post_author . date('/Y/n/j/', $this->post_timestamp) . $this->post_title_clean, false, true);
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    $strings['EDIT_LINK'] = makeUrlNS('Special', "Preferences/Blog/Write/{$this->post_id}", false, true);
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    /*
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     * FIXME: Make this a real colored userpage link
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     */
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    $strings['USER_LINK'] = '&lt;fixme&gt;' . htmlspecialchars($this->post_author) . '&lt;/fixme&gt;';
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0
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    if ( $this->num_comments == 0 )
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      $comment_string = 'No comments';
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    else if ( $this->num_comments == 1 )
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      $comment_string = '1 comment';
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    else
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      $comment_string = intval($this->num_comments) . ' comments';
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    $strings['COMMENT_STRING'] = $comment_string;
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    $strings['TIMESTAMP'] = date('l, F j, Y \a\t h:i <\s\m\a\l\l>A</\s\m\a\l\l>', $this->post_timestamp);
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    $parser->assign_vars($strings);
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    $parser->assign_bool(array(
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        'auth_edit' => ( $this->auth_edit )
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      ));
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    return $parser->run();
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  }
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  /**
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   * Don't worry about this, it's only called from the paginator.
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   * @access private
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   */
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  function paginate_handler($_, $row)
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  {
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    global $db, $session, $paths, $template, $plugins; // Common objects
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    if ( !is_object($this->blog_perms) )
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    {
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      $this->blog_perms = $session->fetch_page_acl($row['username'], 'Blog');
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    }
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    $perms = $session->fetch_page_acl("{$row['post_timestamp']}_{$row['post_id']}", 'Blog');
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    $perms->perms = $session->acl_merge($this->blog_perms->perms, $perms->perms);
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    /*
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    if ( !$perms->get_permissions('read') )
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    {
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      return "POST {$this->post_id} DENIED";
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    }
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    */
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    $this->post_id = intval($row['post_id']);
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    $this->post_title = $row['post_title'];
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    $this->post_text = $row['post_text'];
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    $this->post_author = $row['username'];
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    $this->post_timestamp = intval($row['post_timestamp']);
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    $this->num_comments = intval($row['num_comments']);
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    return $this->render_post();
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  }
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}
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function nuggie_blog_uri_handler($uri)
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{
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  global $db, $session, $paths, $template, $plugins; // Common objects
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  $template->add_header('<link rel="stylesheet" type="text/css" href="' . scriptPath . '/plugins/nuggie/style.css" />');
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  if ( strstr($uri, '/') )
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  {
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    //
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    // Permalinked post
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    //
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    // Split and parse URI
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    $particles = explode('/', $uri);
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    if ( count($particles) < 5 )
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      return false;
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    $sz = count($particles);
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    for ( $i = 5; $i < $sz; $i++ )
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    {
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      $particles[4] .= '/' . $particles[$i];
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      unset($particles[$i]);
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    }
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    $particles[4] = nuggie_sanitize_title($particles[4]);
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    $poster =& $particles[0];
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    $year =& $particles[1];
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    $month =& $particles[2];
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    $day =& $particles[3];
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    $post_title_clean =& $particles[4];
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    $particlecomp = $db->escape(implode('/', $particles));
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    $year = intval($year);
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    $month = intval($month);
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    $day = intval($day);
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    $time_min = mktime(0, 0, 0, $month, $day, $year);
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    $time_max = $time_min + 86400;
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    $ptc = $db->escape($post_title_clean);
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    $uname = $db->escape(dirtify_page_id($poster));
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    $q = $db->sql_query("SELECT p.post_id, p.post_title, p.post_title_clean, p.post_author, p.post_timestamp, p.post_text, b.blog_name,\n"
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                      . "       b.blog_subtitle, b.blog_type, b.allowed_users, u.username, u.user_level, COUNT(c.comment_id) AS num_comments\n"
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                      . "      FROM " . table_prefix . "blog_posts AS p\n"
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                      . "  LEFT JOIN " . table_prefix . "blogs AS b\n"
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                      . "    ON ( b.user_id = p.post_author )\n"
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                      . "  LEFT JOIN " . table_prefix . "users AS u\n"
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                      . "    ON ( u.user_id = p.post_author )\n"
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                      . "  LEFT JOIN " . table_prefix . "comments AS c\n"
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                      . "    ON ( ( c.page_id = '{$particlecomp}' AND c.namespace = 'Blog' ) OR ( c.page_id IS NULL AND c.namespace IS NULL ) )\n"
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                      . "  WHERE p.post_timestamp >= $time_min AND p.post_timestamp <= $time_max\n"
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                      . "    AND p.post_title_clean = '$ptc' AND u.username = '$uname'\n"
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                      . "  GROUP BY p.post_id;");
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    if ( !$q )
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      $db->_die('Nuggie post handler selecting main post data');
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    if ( $db->numrows() < 1 )
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      return false;
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    if ( $db->numrows() > 1 )
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    {
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      die_friendly('Ambiguous blog posts', '<p>FIXME: You have two posts with the same title posted on the same day by the same user. I was
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                                               not able to distinguish which post you wish to view.</p>');
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    }
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    $row = $db->fetchrow();
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    //
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    // Determine permissions
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    //
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    // The way we're doing this is first fetching permissions for the blog, and then merging them
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    // with permissions specific to the post. This way the admin can set custom permissions for the
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    // entire blog, and they'll be inherited unless individual posts have overriding permissions.
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    $perms_blog = $session->fetch_page_acl($row['username'], 'Blog');
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    $perms = $session->fetch_page_acl("{$row['post_timestamp']}_{$row['post_id']}", 'Blog');
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f50742368f90 Fixed a few bugs.
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    $perms->perms = $session->acl_merge($perms->perms, $perms_blog->perms);
0
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    unset($perms_blog);
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    if ( $row['blog_type'] == 'private' )
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    {
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      $allowed_users = unserialize($row['allowed_users']);
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      if ( !in_array($session->username, $allowed_users) && !$perms->get_permissions('nuggie_see_non_public') && $row['username'] != $session->username )
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      {
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        return '_err_access_denied';
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      }
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    }
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    $acl_type = ( $row['post_author'] == $session->user_id ) ? 'nuggie_edit_own' : 'nuggie_edit_other';
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    if ( !$perms->get_permissions('read') )
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      return '_err_access_denied';
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    // We're validated - display post
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    $postbit = new NuggiePostbit();
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    $postbit->post_id = intval($row['post_id']);
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    $postbit->post_title = $row['post_title'];
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    $postbit->post_text = $row['post_text'];
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    $postbit->post_author = $row['username'];
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    $postbit->post_timestamp = intval($row['post_timestamp']);
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    $postbit->auth_edit = $perms->get_permissions($acl_type);
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    $postbit->num_comments = intval($row['num_comments']);
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    $template->tpl_strings['PAGE_NAME'] = htmlspecialchars($row['post_title']) . ' &laquo; ' . htmlspecialchars($row['blog_name']);
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    $template->header();
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    echo '&lt; <a href="' . makeUrlNS('Blog', $row['username']) . '">' . htmlspecialchars($row['blog_name']) . '</a>';
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    echo $postbit->render_post();
2
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    display_page_footers();
0
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    $template->footer();
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    return true;
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  }
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  else
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  {
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    return nuggie_blog_index($uri);
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  }
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}
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function nuggie_blog_index($username)
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{
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  global $db, $session, $paths, $template, $plugins; // Common objects
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  $username_esc = $db->escape($username);
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  // First look for the user's blog so we can get permissions
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  $q = $db->sql_query('SELECT b.blog_type, b.allowed_users, b.user_id, b.blog_name, b.blog_subtitle FROM ' . table_prefix . "blogs AS b LEFT JOIN " . table_prefix . "users AS u ON ( u.user_id = b.user_id ) WHERE u.username = '$username_esc';");
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  if ( !$q )
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    $db->_die('Nuggie main blog page doing preliminary security check');
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  if ( $db->numrows() < 1 )
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    return false;
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  list($blog_type, $allowed_users, $user_id, $blog_name, $blog_subtitle) = $db->fetchrow_num();
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  $db->free_result();
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  $perms = $session->fetch_page_acl($username, 'Blog');
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  if ( $blog_type == 'private' )
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  {
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    $allowed_users = unserialize($allowed_users);
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    if ( !in_array($session->username, $allowed_users) && !$perms->get_permissions('nuggie_see_non_public') && $username != $session->username )
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    {
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      return '_err_access_denied';
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    }
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  }
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  // Determine number of posts and prefetch ACL info
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  $q = $db->sql_query('SELECT post_timestamp, post_id FROM ' . table_prefix . 'blog_posts WHERE post_author = ' . $user_id . ' AND post_published = 1;');
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  if ( !$q )
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    $db->_die('Nuggie main blog page doing rowcount of blog posts');
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  $count = $db->numrows();
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  while ( $row = $db->fetchrow($q) )
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  {
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    $session->fetch_page_acl("{$row['post_timestamp']}_{$row['post_id']}", 'Blog');
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  }
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  $db->free_result($q);
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  $q = $db->sql_unbuffered_query("SELECT p.post_id, p.post_title, p.post_title_clean, p.post_author, p.post_timestamp, p.post_text, b.blog_name,\n"
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                    . "       b.blog_subtitle, u.username, u.user_level, COUNT(c.comment_id) AS num_comments\n"
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                    . "      FROM " . table_prefix . "blog_posts AS p\n"
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                    . "  LEFT JOIN " . table_prefix . "blogs AS b\n"
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                    . "    ON ( b.user_id = p.post_author )\n"
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                    . "  LEFT JOIN " . table_prefix . "users AS u\n"
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                    . "    ON ( u.user_id = p.post_author )\n"
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                    . "  LEFT JOIN " . table_prefix . "comments AS c\n"
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                    . "    ON ( ( c.page_id REGEXP CONCAT('([0-9]+)/([0-9]+)/([0-9]+)/', p.post_title_clean) AND c.namespace = 'Blog' ) OR ( c.page_id IS NULL AND c.namespace IS NULL ) )\n"
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                    . "  WHERE p.post_author = $user_id AND p.post_published = 1\n"
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                    . "  GROUP BY p.post_id\n"
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                    . "  ORDER BY p.post_timestamp DESC;");
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   386
  if ( !$q )
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   387
    $db->_die('Nuggie main blog page selecting the whole shebang');
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diff changeset
   388
    
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diff changeset
   389
  if ( $count < 1 )
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   390
  {
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   391
    // Either the user hasn't created a blog yet, or he isn't even registered
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   392
    return false;
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diff changeset
   393
  }
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diff changeset
   394
  
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   395
  $template->tpl_strings['PAGE_NAME'] = htmlspecialchars($blog_name) . ' &raquo; ' . htmlspecialchars($blog_subtitle);
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   396
  
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   397
  $postbit = new NuggiePostbit();
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   398
  // $q, $tpl_text, $num_results, $result_url, $start = 0, $perpage = 10, $callers = Array(), $header = '', $footer = ''
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   399
  $html = paginate(
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   400
      $q,
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   401
      '{post_id}',
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      $count,
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      makeUrlNS('Blog', $username, "start=%s", true),
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diff changeset
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      0,
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diff changeset
   405
      10,
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   406
      array( 'post_id' => array($postbit, 'paginate_handler') ),
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   407
      '<span class="menuclear"></span>'
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diff changeset
   408
    );
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diff changeset
   409
  
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diff changeset
   410
  $template->header();
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diff changeset
   411
  
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diff changeset
   412
  echo $html;
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diff changeset
   413
  
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diff changeset
   414
  $template->footer();
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diff changeset
   415
  
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   416
  return true;
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diff changeset
   417
}
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diff changeset
   418
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   419
?>