drupal/modules/blog.module

<?php
// $Id$

function blog_node($field) {
  global $user;

  $info = array("name" => "personal blog");

  return $info[$field];
}

function blog_access($op, $node) {
  global $user;

  if ($op == "view") {
    return $node->nid && $node->status && !$node->moderate;
  }

  if ($op == "create") {
    return $user->uid;
  }

  if ($op == "update") {
    return user_access("administer nodes") || ($user->uid == $node->uid);
  }

  if ($op == "delete") {
    return user_access("administer nodes") || ($user->uid == $node->uid);
  }

}

function blog_help() {
 ?>
  <p>Drupal's blog module allows registered users to maintain an online blog or diary.  It provides easy-to-write and easy-to-read online diaries or journals that can be filled with daily thoughts, poetry, boneless blabber, spiritual theories, intimate details, valuable experiences, cynical rants, semi-coherent comments, writing experiments, artistic babblings, critics on current facts, fresh insights, diverse dreams, chronicles and mumbling madness available for public consumption.</p>
 <?php
}

function blog_perm() {
  return array("administer blogs", "access blogs", "post blogs");
}

function blog_feed_user($uid = 0, $date = 0) {
  global $user;

  if ($uid) {
    $account = user_load(array("uid" => $uid, "status" => 1));
  }
  else {
    $account = $user;
  }

  if (!$date) {
    $date = time();
  }

  $result = db_query("SELECT n.nid, n.title, n.body, n.created, u.name, u.uid FROM blog b LEFT JOIN node n ON b.nid = n.nid LEFT JOIN users u ON n.uid = u.uid WHERE u.uid = '$uid' AND n.created > '". ($date - 2592000) ."' ORDER BY b.nid DESC LIMIT 15");
  while ($blog = db_fetch_object($result)) {
    $items .= format_rss_item($blog->title, path_uri() ."node.php?id=$blog->nid", $blog->body);
  }

  $output .= "<?xml version=\"1.0\" encoding=\"ISO-8859-1\" ?>\n";
  $output .= "<!DOCTYPE rss [<!ENTITY % HTMLlat1 PUBLIC \"-//W3C//ENTITIES Latin 1 for XHTML//EN\" \"http://www.w3.org/TR/xhtml1/DTD/xhtml-lat1.ent\">\n";
  $output .= "<?xml version=\"1.0\" encoding=\"ISO-8859-1\" ?>\n";
  $output .= "<rss version=\"0.91\">\n";
  $output .= format_rss_channel("$account->name's blog", path_uri() ."module.php?mod=blog&op=view&id=$account->uid", "$account->name's blog", $items);
  $output .= "</rss>\n";

  header("Content-Type: text/xml");

  print $output;

}

function blog_feed_last() {
  $result = db_query("SELECT n.nid, n.title, n.body, n.created, u.name, u.uid FROM blog b LEFT JOIN node n ON b.nid = n.nid LEFT JOIN users u ON n.uid = u.uid ORDER BY b.nid DESC LIMIT 15");
  while ($blog = db_fetch_object($result)) {
    $items .= format_rss_item($blog->title, path_uri() ."module.php?mod=blog&op=view&id=$blog->nid", $blog->body);
  }

  $output .= "<?xml version=\"1.0\" encoding=\"ISO-8859-1\" ?>\n";
  $output .= "<rss version=\"0.91\">\n";
  $output .= format_rss_channel(variable_get("site_name", "drupal") .": user blogs", path_uri() ."module.php?mod=blog", "Recently updated blogs.", $items);
  $output .= "</rss>\n";

  header("Content-Type: text/xml");

  print $output;

}

function blog_page_user($uid = 0, $date = 0) {
  global $theme, $user;

  if ($uid) {
    $account = user_load(array("uid" => $uid, "status" => 1));
  }
  else {
    $account = $user;
  }

  if (!$date) {
    $date = time();
  }

  $result = db_query("SELECT nid FROM node WHERE type = 'blog' AND uid = '$account->uid' AND created <= '$date' AND created >= '". ($date - 2592000) ."' ORDER BY nid DESC");

  $output .= "<table border=\"0\" cellpadding=\"4\" cellspacing=\"4\">";

  while ($node = db_fetch_object($result)) {

    $blog = node_load(array("nid" => $node->nid));

    $links = array();

    if ($date != date("dny", $blog->created)) {
      $date = date("dny", $blog->created);
      $output .= "<tr><td colspan=\"2\"><b><a href=\"module.php?mod=blog&id=$blog->uid&date=". mktime(23, 59, 59, date("n", $blog->created), date("d", $blog->created), date("Y", $blog->created)) ."\">". format_date($blog->created, custom, "d M Y") .":</a></b></td></tr>";
    }

    if ($user->uid && $user->uid == $uid) {
      $links[] = "<a href=\"module.php?mod=node&op=edit&id=$blog->nid\">". t("edit") ."</a>";
    }

    if ($user->uid && user_access("post blogs")) {
      $links[] = "<a href=\"module.php?mod=node&op=add&type=blog&nid=$blog->nid\">". t("blog it") ."</a>";
    }

    if ($blog->comment) {
      $links[] = "<a href=\"node.php?id=$blog->nid\">". format_plural(node_get_comments($blog->nid), t("comment"), t("comments")) ."</a>";
    }

    $output .= "<tr><td><div style=\"margin-left: 20px;\"><b>". check_output($blog->title) ."</b></div></td><td align=\"right\">". $theme->links($links) ."</td></tr>";
    $output .= "<tr><td colspan=\"2\"><div style=\"margin-left: 40px;\">". check_output($blog->body, 1) ."</div><br /></td></tr>";

  }

  $output .= "</table>";
  $output .= "<a href=\"module.php?mod=blog&op=feed&id=$account->uid\"><img src=\"". $theme->image("xml.gif") ."\" width=\"36\" height=\"14\" align=\"right\" border=\"0\" /></a>\n";

  $theme->box(sprintf(t("%s's blog"), $account->name), $output, "main");
}

function blog_page_last() {
  global $theme, $user;

  $result = db_query("SELECT nid FROM node WHERE type = 'blog' ORDER BY nid DESC LIMIT 20");

  $output .= "<table border=\"0\" cellpadding=\"4\" cellspacing=\"4\">";

  while ($node = db_fetch_object($result)) {
    $blog = node_load(array("nid" => $node->nid));

    $links = array();

    $links[] = "<a href=\"module.php?mod=blog&op=view&id=$blog->uid\">". sprintf("%s's blog", $blog->name) ."</a>";

    if ($blog->uid == $user->uid) {
      $links[] = "<a href=\"module.php?mod=node&op=edit&id=$blog->nid\">". t("edit") ."</a>";
    }

    if ($user->uid && user_access("post blogs")) {
      $links[] = "<a href=\"module.php?mod=node&op=add&type=blog&nid=$blog->nid\">". t("blog it") ."</a>";
    }

    if ($blog->comment) {
      $links[] = "<a href=\"node.php?id=$blog->nid\">". format_plural(node_get_comments($blog->nid), t("comment"), t("comments")) ."</a>";
    }

    $output .= "<tr><td><b>". check_output($blog->title) ."</b></td><td align=\"right\">". $theme->links($links) ."</td></tr>";
    $output .= "<tr><td colspan=\"2\"><div style=\"margin-left: 20px;\">". check_output($blog->body, 1) ."</div><br /></td></tr>";

  }

  $output .= "</table>";
  $output .= "<a href=\"module.php?mod=blog&op=feed\"><img src=\"". $theme->image("xml.gif") ."\" width=\"36\" height=\"14\" align=\"right\" border=\"0\" /></a>\n";

  $theme->box(t("User blogs"), $output, "main");
}

function blog_form($node, $error) {
  global $nid, $iid;

  if ($node->body) {
    if (count(explode(" ", $node->body)) < variable_get("minimum_node_size", 0)) {
      $error["body"] = "<div style=\"color: red;\">". t("The body of your blog is too short.") ."</div>";
    }
  }
  else {
    if ($nid && $blog = node_load(array("nid" => $nid))) {
      $node->body = "<i>". $blog->body ."</i> [<a href=\"module.php?mod=blog&id=$blog->uid&date=$blog->created\">$blog->name</a>]";
    }

    if ($iid && $item = db_fetch_object(db_query("SELECT i.*, f.title as ftitle, f.link as flink FROM item i, feed f WHERE i.iid = '". check_input($iid) ."' AND i.fid = f.fid"))) {
      $node->body = "<a href=\"$item->link\">$item->title</a> - <i>". check_output($item->description) ."</i> [<a href=\"$item->flink\">$item->ftitle</a>]\n";
    }
  }

  $output = form_textarea(t("Body"), "body", $node->body, 60, 15, $error["body"] ? $error["body"] : t("Allowed HTML tags") .": ". htmlspecialchars(variable_get("allowed_html", "")));

  return $output;
}

function blog_save($node) {

  if ($node->nid) {
    return array();
  }
  else {
    return array("promote" => 0, "moderate" => 0, "status" => 1);
  }

}

function blog_page() {
  global $theme, $id, $op, $date;

  if (user_access("access blogs")) {
    switch ($op) {
      case "feed":
        if ($id) {
          blog_feed_user($id, $date);
        }
        else {
          blog_feed_last();
        }
        break;
      default:
        $theme->header();
        if ($id) {
          blog_page_user($id, $date);
        }
        else {
          blog_page_last();
        }
        $theme->footer();
    }
  }
  else {
    $theme->header();
    $theme->box(t("Access denied"), message_access());
    $theme->footer();
  }

}

function blog_link($type, $node = 0) {
  global $user;

  if ($type == "page" && user_access("access blogs")) {
    $links[] = "<a href=\"module.php?mod=blog\">". t("user blogs") ."</a>";
  }

  if ($type == "menu" && user_access("post blogs")) {
    $links[] = "<a href=\"module.php?mod=node&op=add&type=blog\">". t("add blog entry") ."</a>";
    $links[] = "<a href=\"module.php?mod=blog&op=view&id=$user->uid\">". t("view your blog") ."</a>";
  }

  if ($type == "node" && $node->type == "blog") {
    $links[] = "<a href=\"module.php?mod=blog&op=view&id=$node->uid\">". strtr(t("%a's blog"), array("%a" => $node->name)) ."</a>";
  }

  return $links ? $links : array();
}


function blog_block() {
  global $user;

  $result = db_query("SELECT u.uid, u.name, n.created, n.title, n.nid FROM node n LEFT JOIN users u ON n.uid = u.uid WHERE n.type = 'blog' ORDER BY n.nid DESC LIMIT 10");

  while ($node = db_fetch_object($result)) {
    $output .= "<a href=\"node.php?id=$node->nid\">". check_output($node->title) ."</a><br />\n";
  }

  $output .= "<br /><div align=\"right\"><a href=\"module.php?mod=blog\">". t("more") ."</a></div>";

  $block[0]["subject"] = t("User blogs");
  $block[0]["content"] = $output;
  $block[0]["info"] = t("User blogs");
  $block[0]["link"] = "module.php?mod=blog";

  return $block;
}

?>