engelsystem/includes/pages/user_news.php

<?php
function user_news_comments_title() {
  return _("News comments");
}

function news_title() {
  return _("News");
}

function meetings_title() {
  return _("Meetings");
}

function user_meetings() {
  global $DISPLAY_NEWS, $privileges, $user;

  $html = "";

  if (isset ($_REQUEST['page']) && preg_match("/^[0-9]{1,}$/", $_REQUEST['page']))
    $page = $_REQUEST['page'];
  else
    $page = 0;

  $news = sql_select("SELECT * FROM `News` WHERE `Treffen`=1 ORDER BY `ID` DESC LIMIT " . sql_escape($page * $DISPLAY_NEWS) . ", " . sql_escape($DISPLAY_NEWS));
  foreach ($news as $entry)
    $html .= display_news($entry);

  $html .= "<div class=\"pagination\">\n\n";
  $dis_rows = ceil(sql_num_query("SELECT * FROM `News` WHERE `Treffen`=1") / $DISPLAY_NEWS);

  $html .= _("Page:");

  for ($i = 0; $i < $dis_rows; $i++) {
    if (isset($_REQUEST['page']) && $i == $_REQUEST['page'])
      $html .= ($i +1) . "&nbsp; ";
    else
      $html .= '<a href="' . page_link_to("news") . '&page=' . $i . '">' . ($i +1) . '</a>&nbsp; ';
  }
  $html .= '</div>';
  return $html;
}

function display_news($news) {
  global $privileges, $p;

  $html = "";
  $html .= '<article class="news' . ($news['Treffen'] == 1 ? ' meeting' : '') . '">';
  $html .= '<details>';
  $html .= date("Y-m-d H:i", $news['Datum']) . ', ';

  $user_source = User($news['UID']);
  if($user_source === false)
    engelsystem_error("Unable to load user.");

  $html .= User_Nick_render($user_source);
  if ($p != "news_comments")
    $html .= ', <a href="' . page_link_to("news_comments") . '&nid=' . $news['ID'] . '">' . _("Comments") . ' (' . sql_num_query("SELECT * FROM `news_comments` WHERE `Refid`='" . sql_escape($news['ID']) . "'") . ') &raquo;</a>';
  $html .= '</details>';
  $html .= '<h3>' . ($news['Treffen'] == 1 ? '[Meeting] ' : '') . ReplaceSmilies($news['Betreff']) . '</h3>';
  $html .= '<p>' . ReplaceSmilies(nl2br($news['Text'])) . '</p>';
  if (in_array("admin_news", $privileges))
    $html .= "<details><a href=\"" . page_link_to("admin_news") . "&action=edit&id=" . $news['ID'] . "\">Edit</a></details>\n";

  $html .= '</article>';
  return $html;
}

function user_news_comments() {
  global $user;

  $html = "";
  if (isset ($_REQUEST["nid"]) && preg_match("/^[0-9]{1,}$/", $_REQUEST['nid']) && sql_num_query("SELECT * FROM `News` WHERE `ID`=" . sql_escape($_REQUEST['nid']) . " LIMIT 1") > 0) {
    $nid = $_REQUEST["nid"];
    list ($news) = sql_select("SELECT * FROM `News` WHERE `ID`=" . sql_escape($nid) . " LIMIT 1");
    if (isset ($_REQUEST["text"])) {
      $text = preg_replace("/([^\p{L}\p{P}\p{Z}\p{N}\n]{1,})/ui", '', strip_tags($_REQUEST['text']));
      sql_query("INSERT INTO `news_comments` (`Refid`, `Datum`, `Text`, `UID`) VALUES ('" . sql_escape($nid) . "', '" . date("Y-m-d H:i:s") . "', '" . sql_escape($text) . "', '" . sql_escape($user["UID"]) . "')");
      engelsystem_log("Created news_comment: " . $text);
      $html .= success(_("Entry saved."), true);
    }

    $html .= '<a href="' . page_link_to("news") . '">&laquo; Back</a>';
    $html .= display_news($news);

    $html .= '<h2>' . _("Comments") . '</h2>';

    $comments = sql_select("SELECT * FROM `news_comments` WHERE `Refid`='" . sql_escape($nid) . "' ORDER BY 'ID'");
    foreach ($comments as $comment) {
      $user_source = User($comment['UID']);
      if($user_source === false)
        engelsystem_error("Unable to load user.");

      $html .= '<article class="news_comment">';
      $html .= User_Avatar_render($user_source);
      $html .= '<details>';
      $html .= $comment['Datum'] . ', ';
      $html .= User_Nick_render($user_source);
      $html .= '</details>';
      $html .= '<p>' . nl2br($comment['Text']) . '</p>';
      $html .= '</article>';
    }

    $html .= "</table>";
    $html .= '
    <br />
    <hr>
    <h2>' . _("New Comment:") . '</h2>
    <a name="Neu">&nbsp;</a>

    <form action="' . page_link_to("news_comments") . '" method="post">
    <input type="hidden" name="nid" value="' . $_REQUEST["nid"] . '">
    <table>
    <tr>
    <td align="right" valign="top">' . _("Message:") . '</td>
    <td><textarea name="text" cols="50" rows="10"></textarea></td>
    </tr>
    </table>
    <br />
    <input type="submit" value="' . _("Save") . '">
    </form>';
  } else {
    $html .= _("Fehlerhafter Aufruf!");
  }

  return $html;
}

function user_news() {
  global $DISPLAY_NEWS, $privileges, $user;

  $html = msg();

  if (isset ($_POST["text"]) && isset ($_POST["betreff"]) && in_array("admin_news", $privileges)) {
    if (!isset ($_POST["treffen"]) || !in_array("admin_news", $privileges))
      $_POST["treffen"] = 0;
    sql_query("INSERT INTO `News` (`Datum`, `Betreff`, `Text`, `UID`, `Treffen`) " .
        "VALUES ('" . sql_escape(time()) . "', '" . sql_escape($_POST["betreff"]) . "', '" . sql_escape($_POST["text"]) . "', '" . sql_escape($user['UID']) .
        "', '" . sql_escape($_POST["treffen"]) . "');");
    engelsystem_log("Created news: " . $_POST["betreff"] . ", treffen: " . $_POST["treffen"]);
    success(_("Entry saved."));
    redirect(page_link_to('user_news'));
  }

  if (isset ($_REQUEST['page']) && preg_match("/^[0-9]{1,}$/", $_REQUEST['page']))
    $page = $_REQUEST['page'];
  else
    $page = 0;

  $news = sql_select("SELECT * FROM `News` ORDER BY `ID` DESC LIMIT " . sql_escape($page * $DISPLAY_NEWS) . ", " . sql_escape($DISPLAY_NEWS));
  foreach ($news as $entry)
    $html .= display_news($entry);

  $html .= "<div class=\"pagination\">\n\n";
  $dis_rows = ceil(sql_num_query("SELECT * FROM `News`") / $DISPLAY_NEWS);

  $html .= _("Page:");

  for ($i = 0; $i < $dis_rows; $i++) {
    if (isset($_REQUEST['page']) && $i == $_REQUEST['page'])
      $html .= ($i +1) . "&nbsp; ";
    else
      $html .= '<a href="' . page_link_to("news") . '&page=' . $i . '">' . ($i +1) . '</a>&nbsp; ';
  }
  $html .= '</div>';
  if (in_array("admin_news", $privileges)) {
    $html .= '<br /><hr />
    <h2>' . _("Create news:") . '</h2>
    <a name="Neu">&nbsp;</a>

    <form action="" method="post">
    <table>
    <tr>
    <td align="right">' . _("Subject") . ':</td>
    <td><input type="text" name="betreff" size="60"></td>
    </tr>
    <tr>
    <td align="right">' . _("Message") . ':</td>
    <td><textarea name="text" cols="50" rows="10"></textarea></td>
    </tr>';
    if (in_array('admin_news', $privileges)) {
      $html .= ' <tr>
      <td align="right">' . _("Meeting") . ':</td>
      <td><input type="checkbox" name="treffen" size="1" value="1"></td>
      </tr>';

    }
    $html .= '</table>
    <br />
    <input type="submit" value="' . _("Save") . '">
    </form>';
  }
  return $html;
}
?>