FeedOnFeeds/fof-db.php

985 lines
31 KiB
PHP

<?php
/*
* This file is part of FEED ON FEEDS - http://feedonfeeds.com/
*
* fof-db.php - (nearly) all of the DB specific code
*
* Copyright (C) 2004-2007 Stephen Minutillo steve@minutillo.com http://minutillo.com/steve/
* (C) 2009-2014 Vitaliy Filippov vitalif@mail.ru http://yourcmc.ru/wiki/
*
* Distributed under the GPL - see LICENSE
*/
$FOF_FEED_TABLE = FOF_FEED_TABLE;
$FOF_ITEM_TABLE = FOF_ITEM_TABLE;
$FOF_ITEM_TAG_TABLE = FOF_ITEM_TAG_TABLE;
$FOF_SUBSCRIPTION_TABLE = FOF_SUBSCRIPTION_TABLE;
$FOF_TAG_TABLE = FOF_TAG_TABLE;
$FOF_USER_TABLE = FOF_USER_TABLE;
////////////////////////////////////////////////////////////////////////////////
// Utilities
////////////////////////////////////////////////////////////////////////////////
function fof_db_connect()
{
global $fof_connection;
$fof_connection = mysqli_connect('p:'.FOF_DB_HOST, FOF_DB_USER, FOF_DB_PASS, FOF_DB_DBNAME)
or die("<br><br>Cannot connect to database. Please update configuration in <b>fof-config.php</b>. MySQL says: <i>" . mysqli_connect_error() . "</i>");
fof_db_query("SET NAMES utf8");
}
function fof_db_optimize()
{
/* Может быть, проблемы из-за этого? */
/*global $FOF_FEED_TABLE, $FOF_ITEM_TABLE, $FOF_ITEM_TAG_TABLE, $FOF_SUBSCRIPTION_TABLE, $FOF_TAG_TABLE, $FOF_USER_TABLE;*/
/*fof_db_query("optimize table $FOF_FEED_TABLE, $FOF_ITEM_TABLE, $FOF_ITEM_TAG_TABLE, $FOF_SUBSCRIPTION_TABLE, $FOF_TAG_TABLE, $FOF_USER_TABLE");*/
}
function fof_safe_query(/* $query, [$args...]*/)
{
global $fof_connection;
$args = func_get_args();
$query = array_shift($args);
if (isset($args[0]) && is_array($args[0]))
$args = $args[0];
foreach ($args as &$a)
$a = $fof_connection->real_escape_string($a);
$query = vsprintf($query, $args);
return fof_db_query($query);
}
function fof_db_query($sql, $live=0)
{
global $fof_connection;
list($usec, $sec) = explode(" ", microtime());
$t1 = (float)$sec + (float)$usec;
$result = $fof_connection->query($sql);
$num = $affected = 0;
if (is_object($result))
$num = $result->num_rows;
if ($result)
$affected = $fof_connection->affected_rows;
list($usec, $sec) = explode(" ", microtime());
$t2 = (float)$sec + (float)$usec;
$elapsed = $t2 - $t1;
$logmessage = sprintf("%.3f: [%s] (%d / %d)", $elapsed, $sql, $num, $affected);
fof_log($logmessage, "query");
if ($live)
{
return $result;
}
else
{
if ($fof_connection->errno)
fof_die_mysql_error("Cannot run query '$sql': ".$fof_connection->errno.": ".$fof_connection->error);
return $result;
}
}
function fof_num_rows($result)
{
return $result ? $result->num_rows : 0;
}
function fof_insert_id()
{
global $fof_connection;
return $fof_connection->insert_id;
}
function fof_die_mysql_error($error)
{
ob_start();
print_r(debug_backtrace());
$trace = ob_get_contents();
ob_end_clean();
$error .= "\n".$trace;
fof_log($error, 'error');
$error = "SQL error. Have you run <a href=\"install.php\"><code>install.php</code></a> to create or upgrade your installation?\n<pre>$error</pre>";
die($error);
}
function fof_db_get_row($result)
{
return $result->fetch_assoc();
}
function fof_db_get_value($sql)
{
if (!($result = fof_db_query($sql)) ||
!($row = fof_db_get_row($result)))
return NULL;
return reset($row);
}
////////////////////////////////////////////////////////////////////////////////
// Feed level stuff
////////////////////////////////////////////////////////////////////////////////
function fof_db_feed_mark_cached($feed_id)
{
global $FOF_FEED_TABLE;
$result = fof_safe_query("update $FOF_FEED_TABLE set feed_cache_date = %d where feed_id = %d", time(), $feed_id);
}
function fof_db_feed_mark_attempted_cache($feed_id)
{
global $FOF_FEED_TABLE;
$result = fof_safe_query("update $FOF_FEED_TABLE set feed_cache_attempt_date = %d where feed_id = %d", time(), $feed_id);
}
function fof_db_feed_update_metadata($feed_id, $url, $title, $link, $description, $image, $image_cache_date)
{
global $FOF_FEED_TABLE;
$sql = "update $FOF_FEED_TABLE set feed_url = '%s', feed_title = '%s', feed_link = '%s', feed_description = '%s'";
$args = array($url, $title, $link, $description);
if($image)
{
$sql .= ", feed_image = '%s' ";
$args[] = $image;
}
else
{
$sql .= ", feed_image = NULL ";
}
$sql .= ", feed_image_cache_date = %d ";
$args[] = $image_cache_date;
$sql .= "where feed_id = %d";
$args[] = $feed_id;
$result = fof_safe_query($sql, $args);
}
function fof_db_get_latest_item_age($user_id)
{
global $FOF_SUBSCRIPTION_TABLE, $FOF_ITEM_TABLE;
$result = fof_safe_query(
"select max(i.item_cached) max_date, i.feed_id id".
" from $FOF_ITEM_TABLE i, $FOF_SUBSCRIPTION_TABLE s".
" where s.user_id=%d and s.feed_id=i.feed_id group by i.feed_id", $user_id
);
return $result;
}
function fof_db_get_subscriptions($user_id)
{
global $FOF_FEED_TABLE, $FOF_SUBSCRIPTION_TABLE;
return fof_safe_query("select * from $FOF_FEED_TABLE, $FOF_SUBSCRIPTION_TABLE where $FOF_SUBSCRIPTION_TABLE.user_id = %d and $FOF_FEED_TABLE.feed_id = $FOF_SUBSCRIPTION_TABLE.feed_id order by feed_title", $user_id);
}
function fof_db_get_feeds()
{
global $FOF_FEED_TABLE;
return fof_db_query("select * from $FOF_FEED_TABLE order by feed_title");
}
function fof_db_get_item_by_id($item_id)
{
global $FOF_ITEM_TABLE;
if (($result = fof_db_query("select * from $FOF_ITEM_TABLE where item_id=".intval($item_id))) &&
($row = fof_db_get_row($result)))
return $row;
return NULL;
}
function fof_db_get_item_count($user_id)
{
global $FOF_ITEM_TABLE, $FOF_SUBSCRIPTION_TABLE;
return fof_safe_query(
"select s.feed_id as id, (select count(*) from $FOF_ITEM_TABLE i where i.feed_id=s.feed_id)".
" as count from $FOF_SUBSCRIPTION_TABLE s where s.user_id = %d", $user_id
);
}
function fof_db_get_tagged_item_count($user_id, $tag_id)
{
global $FOF_ITEM_TAG_TABLE;
return fof_safe_query(
"select count(*) as count, feed_id as id".
" from $FOF_ITEM_TAG_TABLE where tag_id = %d and user_id = %d group by id",
$tag_id, $user_id
);
}
function fof_db_get_subscribed_users($feed_id)
{
global $FOF_SUBSCRIPTION_TABLE;
return fof_safe_query("select user_id from $FOF_SUBSCRIPTION_TABLE where $FOF_SUBSCRIPTION_TABLE.feed_id = %d", $feed_id);
}
function fof_db_is_subscribed($user_id, $feed_url)
{
global $FOF_FEED_TABLE, $FOF_SUBSCRIPTION_TABLE;
$result = fof_safe_query("select $FOF_SUBSCRIPTION_TABLE.feed_id from $FOF_FEED_TABLE, $FOF_SUBSCRIPTION_TABLE where feed_url='%s' and $FOF_SUBSCRIPTION_TABLE.feed_id = $FOF_FEED_TABLE.feed_id and $FOF_SUBSCRIPTION_TABLE.user_id = %d", $feed_url, $user_id);
if (fof_num_rows($result) == 0)
return false;
return true;
}
function fof_db_get_feed_by_url($feed_url)
{
global $FOF_FEED_TABLE;
$result = fof_safe_query("select * from $FOF_FEED_TABLE where feed_url='%s'", $feed_url);
return fof_db_get_row($result);
}
function fof_db_get_feed_by_id($feed_id, $user_id = false)
{
global $FOF_FEED_TABLE, $FOF_SUBSCRIPTION_TABLE;
$j = "";
if ($user_id)
$j = "JOIN $FOF_SUBSCRIPTION_TABLE s ON s.user_id=".intval($user_id)." AND s.feed_id=s.feed_id";
$result = fof_safe_query("select * from $FOF_FEED_TABLE f $j where f.feed_id=%d", $feed_id);
return fof_db_get_row($result);
}
function fof_db_add_feed($url, $title, $link, $description)
{
global $FOF_FEED_TABLE, $FOF_ITEM_TABLE, $FOF_SUBSCRIPTION_TABLE, $fof_connection;
fof_safe_query("insert into $FOF_FEED_TABLE (feed_url,feed_title,feed_link,feed_description) values ('%s', '%s', '%s', '%s')", $url, $title, $link, $description);
return fof_insert_id();
}
function fof_db_add_subscription($user_id, $feed_id)
{
global $FOF_SUBSCRIPTION_TABLE;
fof_safe_query("insert into $FOF_SUBSCRIPTION_TABLE (feed_id, user_id) values (%d, %d)", $feed_id, $user_id);
}
function fof_db_delete_subscription($user_id, $feed_id)
{
global $FOF_SUBSCRIPTION_TABLE, $FOF_ITEM_TAG_TABLE, $FOF_ITEM_TABLE;
fof_safe_query(
"delete from s, it using $FOF_ITEM_TAG_TABLE it, $FOF_SUBSCRIPTION_TABLE s, $FOF_ITEM_TABLE i".
" where i.item_id=it.item_id and s.feed_id=%d and i.feed_id=s.feed_id and it.user_id=%d and s.user_id=it.user_id",
$feed_id, $user_id
);
}
function fof_db_delete_feed($feed_id)
{
global $FOF_FEED_TABLE, $FOF_ITEM_TABLE;
fof_safe_query("delete from $FOF_ITEM_TABLE where feed_id = %d", $feed_id);
fof_safe_query("delete from $FOF_FEED_TABLE where feed_id = %d", $feed_id);
}
////////////////////////////////////////////////////////////////////////////////
// Item level stuff
////////////////////////////////////////////////////////////////////////////////
function fof_db_find_item($feed_id, $item_guid)
{
global $FOF_FEED_TABLE, $FOF_ITEM_TABLE, $FOF_SUBSCRIPTION_TABLE, $fof_connection;
$result = fof_safe_query("select item_id from $FOF_ITEM_TABLE where feed_id=%d and item_guid='%s'", $feed_id, $item_guid);
$row = fof_db_get_row($result);
return $row ? $row['item_id'] : NULL;
}
$fof_db_item_fields = array('item_guid', 'item_link', 'item_title', 'item_author', 'item_content', 'item_cached', 'item_published', 'item_updated');
function fof_db_add_item($feed_id, $item)
{
global $FOF_FEED_TABLE, $FOF_ITEM_TABLE, $FOF_SUBSCRIPTION_TABLE, $fof_connection, $fof_db_item_fields;
$args = array();
$sql = "insert into $FOF_ITEM_TABLE (feed_id, ".implode(",", $fof_db_item_fields).") values (".intval($feed_id);
foreach ($fof_db_item_fields as $k)
{
$sql .= ", '%s'";
$args[] = $item[$k];
}
$sql .= ")";
fof_safe_query($sql, $args);
return fof_insert_id();
}
function fof_db_get_items($user_id = 1, $feed = NULL, $what = "unread",
$when = NULL, $start = NULL, $limit = NULL, $order = "desc", $search = NULL)
{
global $FOF_SUBSCRIPTION_TABLE, $FOF_FEED_TABLE, $FOF_ITEM_TABLE, $FOF_ITEM_TAG_TABLE, $FOF_TAG_TABLE;
$user_id = intval($user_id);
$prefs = fof_prefs();
$offset = $prefs['tzoffset'];
if (!empty($prefs['dst']))
$offset += date('I');
if (!is_null($when) && $when != "")
{
if($when == "today")
$whendate = fof_todays_date();
else
$whendate = $when;
$whendate = explode("/", $whendate);
$begin = gmmktime(0, 0, 0, $whendate[1], $whendate[2], $whendate[0]) - ($offset * 60 * 60);
$end = $begin + (24 * 60 * 60);
}
$limit_clause = '';
if (is_numeric($start))
{
if (!is_numeric($limit))
$limit = $prefs["howmany"];
$limit_clause = " limit $start, $limit ";
}
$args = array();
$select = "SELECT STRAIGHT_JOIN i.* , f.*, s.subscription_prefs ";
$from = "$FOF_ITEM_TABLE i, $FOF_FEED_TABLE f, $FOF_SUBSCRIPTION_TABLE s ";
$where = "WHERE s.user_id=$user_id AND s.feed_id=f.feed_id AND f.feed_id=i.feed_id";
if (!is_null($feed) && $feed != "")
$where .= sprintf(" AND f.feed_id = %d ", $feed);
$pubdate = 'i.item_published';
if ($what != "all")
{
$alltags = array();
foreach (fof_db_get_tags($user_id) as $t) // returned from cache
{
$alltags[mb_strtolower($t['tag_name'])] = $t;
}
$min_tag = false;
$min_i = false;
$tags = preg_split("/[\s,]*,[\s,]*/", $what);
foreach ($tags as $i => $tag)
{
$tag = mb_strtolower(trim($tag));
if (isset($alltags[$tag]))
{
$from = "$FOF_ITEM_TAG_TABLE it$i, $from";
// feed_id condition is redundant, used to speedup match by feed+tag(s)
$where .= " AND it$i.feed_id=i.feed_id AND it$i.user_id=$user_id".
" AND it$i.item_id=i.item_id AND it$i.tag_id=%d";
$args[] = $alltags[$tag]['tag_id'];
if (!$min_tag || $min_tag['count'] > $alltags[$tag]['count'])
{
// For several tags it's better to sort using the most rare one
$min_tag = $alltags[$tag];
$min_i = $i;
}
}
}
if ($min_i !== false)
{
$pubdate = "it$min_i.item_published";
}
}
if (!is_null($when) && $when != "")
$where .= sprintf(" AND $pubdate > %d AND $pubdate < %d", $begin, $end);
if (!is_null($search) && $search != "")
{
$where .= " AND (i.item_title like '%%%s%%' OR i.item_content like '%%%s%%')";
$args[] = $search;
$args[] = $search;
}
$order_by = "order by $pubdate desc $limit_clause ";
$query = "$select FROM $from $where $order_by";
$result = fof_safe_query($query, $args);
if (fof_num_rows($result) == 0)
return array();
while ($row = fof_db_get_row($result))
{
$row['prefs'] = unserialize($row['subscription_prefs']);
$array[] = $row;
}
$array = fof_multi_sort($array, 'item_published', $order != "asc");
foreach ($array as $i => $item)
{
$ids[] = $item['item_id'];
$lookup[$item['item_id']] = $i;
$array[$i]['tags'] = array();
}
$items = join($ids, ", ");
$result = fof_safe_query(
"select t.tag_name, it.item_id from $FOF_TAG_TABLE t, $FOF_ITEM_TAG_TABLE it".
" where t.tag_id = it.tag_id and it.item_id in (%s) and it.user_id = %d", $items, $user_id
);
while ($row = fof_db_get_row($result))
{
$item_id = $row['item_id'];
$tag = $row['tag_name'];
$array[$lookup[$item_id]]['tags'][] = $tag;
}
return $array;
}
function fof_db_get_item($user_id, $item_id)
{
global $FOF_FEED_TABLE, $FOF_ITEM_TABLE, $FOF_ITEM_TAG_TABLE, $FOF_TAG_TABLE;
$query = "select f.feed_image, f.feed_title, f.feed_link, f.feed_description, i.*".
" from $FOF_FEED_TABLE f, $FOF_ITEM_TABLE i where i.feed_id=f.feed_id and i.item_id = %d";
$result = fof_safe_query($query, $item_id);
$item = fof_db_get_row($result);
$item['tags'] = array();
if ($user_id)
{
$result = fof_safe_query(
"select t.tag_name from $FOF_TAG_TABLE t, $FOF_ITEM_TAG_TABLE it".
" where t.tag_id = it.tag_id and it.item_id = %d and it.user_id = %d", $item_id, $user_id
);
while ($row = fof_db_get_row($result))
{
$item['tags'][] = $row['tag_name'];
}
}
return $item;
}
////////////////////////////////////////////////////////////////////////////////
// Tag stuff
////////////////////////////////////////////////////////////////////////////////
function fof_db_get_subscription_to_tags()
{
$r = array('filter' => array());
global $FOF_SUBSCRIPTION_TABLE;
$result = fof_safe_query("select * from $FOF_SUBSCRIPTION_TABLE");
while($row = fof_db_get_row($result))
{
$prefs = unserialize($row['subscription_prefs']);
$tags = $prefs['tags'];
if (!isset($r[$row['feed_id']]))
$r[$row['feed_id']] = array();
$r[$row['feed_id']][$row['user_id']] = $tags;
if (!empty($prefs['filter']))
{
if (!isset($r['filter'][$row['feed_id']]))
$r['filter'][$row['feed_id']] = array();
$r['filter'][$row['feed_id']][$row['user_id']] = $prefs['filter'];
}
}
return $r;
}
function fof_db_get_subscription_prefs($user_id, $feed_id)
{
global $FOF_SUBSCRIPTION_TABLE;
$result = fof_safe_query("select subscription_prefs from $FOF_SUBSCRIPTION_TABLE where feed_id = %d and user_id = %d", $feed_id, $user_id);
$row = fof_db_get_row($result);
$prefs = unserialize($row['subscription_prefs']);
return $prefs;
}
function fof_db_set_subscription_prefs($user_id, $feed_id, $prefs)
{
global $FOF_SUBSCRIPTION_TABLE;
return fof_safe_query("update $FOF_SUBSCRIPTION_TABLE set subscription_prefs = '%s' where feed_id = %d and user_id = %d", serialize($prefs), $feed_id, $user_id);
}
// tag feed and all its items
function fof_db_tag_feed($user_id, $feed_id, $tag_id)
{
$prefs = fof_db_get_subscription_prefs($user_id, $feed_id);
if(!is_array($prefs['tags']) || !in_array($tag_id, $prefs['tags']))
$prefs['tags'][] = $tag_id;
fof_db_set_subscription_prefs($user_id, $feed_id, $prefs);
fof_db_tag_feed_items($user_id, $feed_id, $tag_id);
}
function fof_db_tag_feed_items($user_id, $feed_id, $tag_id, $since = 0)
{
global $FOF_ITEM_TAG_TABLE, $FOF_ITEM_TABLE;
fof_safe_query(
"insert into $FOF_ITEM_TAG_TABLE (tag_id, user_id, item_id, item_published, feed_id)".
" select %d, %d, item_id, item_published, feed_id from $FOF_ITEM_TABLE where feed_id=%d".
($since ? " and item_published >= ".$since : '').
" on duplicate key update item_published=values(item_published)",
$tag_id, $user_id, $feed_id
);
}
function fof_db_set_feedprop($user_id, $feed_id, $prop, $value)
{
$chg = false;
$prefs = fof_db_get_subscription_prefs($user_id, $feed_id);
if (empty($prefs[$prop]) ? $value : ($prefs[$prop] != $value))
{
$prefs[$prop] = $value;
$chg = true;
}
fof_db_set_subscription_prefs($user_id, $feed_id, $prefs);
return $chg;
}
// untag feed and all its items
function fof_db_untag_feed($user_id, $feed_id, $tag_id)
{
global $FOF_ITEM_TAG_TABLE, $FOF_ITEM_TABLE;
$prefs = fof_db_get_subscription_prefs($user_id, $feed_id);
if(is_array($prefs['tags']))
$prefs['tags'] = array_diff($prefs['tags'], array($tag_id));
fof_db_set_subscription_prefs($user_id, $feed_id, $prefs);
fof_safe_query(
"delete from it using $FOF_ITEM_TAG_TABLE it, $FOF_ITEM_TABLE i".
" where it.item_id=i.item_id and it.user_id=%d and it.tag_id=%d and i.feed_id=%d",
$user_id, $tag_id, $feed_id
);
}
function fof_db_get_item_tags($user_id, $item_id)
{
global $FOF_TAG_TABLE, $FOF_ITEM_TAG_TABLE;
$result = fof_safe_query("select $FOF_TAG_TABLE.tag_name from $FOF_TAG_TABLE, $FOF_ITEM_TAG_TABLE where $FOF_TAG_TABLE.tag_id = $FOF_ITEM_TAG_TABLE.tag_id and $FOF_ITEM_TAG_TABLE.item_id = %d and $FOF_ITEM_TAG_TABLE.user_id = %d", $item_id, $user_id);
return $result;
}
function fof_db_item_has_tags($item_id)
{
global $FOF_ITEM_TAG_TABLE;
$result = fof_safe_query("select count(*) as \"count\" from $FOF_ITEM_TAG_TABLE where item_id=%d and tag_id > 2", $item_id);
$row = fof_db_get_row($result);
return $row["count"];
}
function fof_db_get_unread_count($user_id)
{
global $FOF_ITEM_TAG_TABLE;
$result = fof_safe_query("select count(*) as \"count\" from $FOF_ITEM_TAG_TABLE where tag_id = 1 and user_id = %d", $user_id);
$row = fof_db_get_row($result);
return $row["count"];
}
function fof_db_get_tag_unread($user_id)
{
global $FOF_TAG_TABLE, $FOF_ITEM_TAG_TABLE;
$result = fof_safe_query(
"select straight_join count(*) as count, it2.tag_id from $FOF_ITEM_TAG_TABLE it, $FOF_ITEM_TAG_TABLE it2 use index (item_id_user_id_tag_id)".
" where it.item_id = it2.item_id and it.tag_id = 1 and it.user_id = %d and it2.user_id = %d group by it2.tag_id", $user_id, $user_id
);
$counts = array();
while ($row = fof_db_get_row($result))
$counts[$row['tag_id']] = $row['count'];
return $counts;
}
function fof_db_get_tags($user_id)
{
global $FOF_TAG_TABLE, $FOF_ITEM_TABLE, $FOF_ITEM_TAG_TABLE, $fof_connection;
static $cache = array();
if (isset($cache[$user_id]))
return $cache[$user_id];
$sql = "SELECT $FOF_TAG_TABLE.tag_id, $FOF_TAG_TABLE.tag_name, count($FOF_ITEM_TAG_TABLE.item_id) as count
FROM $FOF_TAG_TABLE
LEFT JOIN $FOF_ITEM_TAG_TABLE ON $FOF_TAG_TABLE.tag_id = $FOF_ITEM_TAG_TABLE.tag_id
WHERE $FOF_ITEM_TAG_TABLE.user_id = %d
GROUP BY $FOF_TAG_TABLE.tag_id order by $FOF_TAG_TABLE.tag_name";
$result = fof_safe_query($sql, $user_id);
$tags = array();
while ($row = fof_db_get_row($result))
$tags[$row['tag_id']] = $row;
$cache[$user_id] = $tags;
return $tags;
}
function fof_db_get_tag_id_map()
{
global $FOF_TAG_TABLE;
$result = fof_safe_query("select * from $FOF_TAG_TABLE");
$tags = array();
while ($row = fof_db_get_row($result))
$tags[$row['tag_id']] = $row['tag_name'];
return $tags;
}
function fof_db_create_tag($user_id, $tag)
{
global $FOF_TAG_TABLE, $fof_connection;
fof_safe_query("insert into $FOF_TAG_TABLE (tag_name) values ('%s')", $tag);
return fof_insert_id();
}
function fof_db_get_tag_by_name($user_id, $tag)
{
global $FOF_TAG_TABLE;
$result = fof_safe_query("select $FOF_TAG_TABLE.tag_id from $FOF_TAG_TABLE where $FOF_TAG_TABLE.tag_name = '%s'", $tag);
$row = fof_db_get_row($result);
return $row ? $row['tag_id'] : NULL;
}
function fof_db_mark_unread($user_id, $items)
{
fof_db_tag_items($user_id, 1, $items);
}
function fof_db_mark_read($user_id, $items)
{
fof_db_untag_items($user_id, 1, $items);
}
function fof_db_delete_items($user_id, $items, $check_private)
{
global $FOF_ITEM_TABLE, $FOF_SUBSCRIPTION_TABLE;
if (!$items)
return;
if ($check_private)
{
// Check if items correspond to $user_id's private feed
$result = fof_db_query(
"SELECT i.item_id FROM $FOF_ITEM_TABLE i".
" LEFT JOIN $FOF_SUBSCRIPTION_TABLE s ON s.feed_id=i.feed_id AND s.user_id != $user_id".
" WHERE s.feed_id IS NULL AND i.item_id IN (".implode(',', array_map('intval', $items)).")"
);
$items = array();
foreach ($result as $r)
$items[] = $r['item_id'];
}
if (!$items)
return;
$items = implode(',', array_map('intval', $items));
fof_db_query("DELETE FROM $FOF_ITEM_TABLE WHERE item_id IN ($items)");
}
function fof_db_mark_feed_read($user_id, $feed_id)
{
fof_db_untag_feed($user_id, $feed_id, 1);
}
function fof_db_mark_feed_unread($user_id, $feed_id, $what)
{
fof_db_tag_feed_items($user_id, $feed_id, 1, $what == 'today' ? mktime(0, 0, 0, date('n'), date('j'), date('Y')) : 0);
}
function fof_db_mark_item_unread($id, $except_users = array())
{
global $FOF_ITEM_TABLE, $FOF_SUBSCRIPTION_TABLE, $FOF_ITEM_TAG_TABLE;
fof_safe_query(
"insert into $FOF_ITEM_TAG_TABLE (user_id, tag_id, item_id, feed_id, item_published)".
" select s.user_id, 1, i.item_id, i.feed_id, i.item_published from $FOF_ITEM_TABLE i, $FOF_SUBSCRIPTION_TABLE s".
" where i.item_id=%d and i.feed_id=s.feed_id".
($except_users ? " and s.user_id not in (".implode(',', array_map('intval', $except_users)).")" : '').
" on duplicate key update feed_id=values(feed_id), item_published=values(item_published)", $id
);
}
function fof_db_tag_items($user_id, $tag_id, $items)
{
global $FOF_ITEM_TAG_TABLE, $FOF_ITEM_TABLE;
if (!$items)
return;
$items = implode(',', (array)$items);
$sql = "insert into $FOF_ITEM_TAG_TABLE (user_id, tag_id, item_id, item_published, feed_id)".
" select ".intval($user_id).", ".intval($tag_id).", item_id, item_published, feed_id".
" from $FOF_ITEM_TABLE where item_id in ($items)".
" on duplicate key update feed_id=values(feed_id), item_published=values(item_published)";
fof_db_query($sql, 1);
}
function fof_db_untag_items($user_id, $tag_id, $items)
{
global $FOF_ITEM_TAG_TABLE;
if(!$items)
return;
if(!is_array($items))
$items = array($items);
$sql = "item_id IN (".implode(",", array_map('intval', $items)).")";
$sql = "delete from $FOF_ITEM_TAG_TABLE where user_id = %d and tag_id = %d and $sql";
fof_safe_query($sql, array($user_id, $tag_id));
}
////////////////////////////////////////////////////////////////////////////////
// User stuff
////////////////////////////////////////////////////////////////////////////////
function fof_db_get_users()
{
global $FOF_USER_TABLE;
$result = fof_safe_query("select user_name, user_id, user_prefs from $FOF_USER_TABLE");
$users = array();
while ($row = fof_db_get_row($result))
{
$users[$row['user_id']]['user_name'] = $row['user_name'];
$users[$row['user_id']]['user_prefs'] = unserialize($row['user_prefs']);
}
}
function fof_db_add_user($username, $password)
{
global $FOF_USER_TABLE;
$password_hash = md5($password . $username);
fof_safe_query("insert into $FOF_USER_TABLE (user_name, user_password_hash) values ('%s', '%s')", $username, $password_hash);
}
function fof_db_change_password($username, $password)
{
global $FOF_USER_TABLE;
$password_hash = md5($password . $username);
fof_safe_query("update $FOF_USER_TABLE set user_password_hash = '%s' where user_name = '%s'", $password_hash, $username);
}
function fof_db_get_user($username, $userid = NULL)
{
global $FOF_USER_TABLE;
if ($username === NULL)
$result = fof_safe_query("select * from $FOF_USER_TABLE where user_id = %d", $userid);
else
$result = fof_safe_query("select * from $FOF_USER_TABLE where user_name = '%s'", $username);
$row = fof_db_get_row($result);
return $row;
}
function fof_update_user($user)
{
global $FOF_USER_TABLE;
if (!$user || !$user['user_id'])
return;
$values = array();
$query = "";
foreach (array('user_name', 'user_password_hash', 'user_level', 'user_prefs') as $k)
{
$query .= ($query ? ", " : "") . "`$k`='%s'";
$values[] = $user[$k];
}
$query = "UPDATE $FOF_USER_TABLE SET $query WHERE user_id='%s'";
$values[] = $user['user_id'];
array_unshift($values, $query);
call_user_func_array('fof_safe_query', $values);
}
function fof_db_delete_user($username)
{
global $FOF_USER_TABLE, $FOF_ITEM_TAG_TABLE, $FOF_SUBSCRIPTION_TABLE;
$user = fof_db_get_user($username);
$user_id = $user['user_id'];
fof_safe_query("delete from $FOF_SUBSCRIPTION_TABLE where user_id = %d", $user_id);
fof_safe_query("delete from $FOF_ITEM_TAG_TABLE where user_id = %d", $user_id);
fof_safe_query("delete from $FOF_USER_TABLE where user_id = %d", $user_id);
}
function fof_db_save_prefs($user_id, $prefs)
{
global $FOF_USER_TABLE;
$prefs = serialize($prefs);
fof_safe_query("update $FOF_USER_TABLE set user_prefs = '%s' where user_id = %d", $prefs, $user_id);
}
function fof_set_current_user($row)
{
global $fof_user_id, $fof_user_name, $fof_user_level;
$fof_user_name = $row['user_name'];
$fof_user_id = $row['user_id'];
$fof_user_level = $row['user_level'];
return true;
}
function fof_db_authenticate($user_name, $user_password_hash)
{
global $FOF_USER_TABLE;
$result = fof_safe_query("select * from $FOF_USER_TABLE where user_name = '%s' and user_password_hash = '%s'", $user_name, $user_password_hash);
if (fof_num_rows($result) == 0)
return false;
$row = fof_db_get_row($result);
fof_set_current_user($row);
return true;
}
function fof_db_get_is_duplicate_item($item_id, $item_guid, $content_md5)
{
global $FOF_ITEM_TABLE, $FOF_USER_TABLE, $FOF_FEED_TABLE, $FOF_SUBSCRIPTION_TABLE;
$result = fof_safe_query("select * from $FOF_ITEM_TABLE where item_guid='%s' AND item_id!='%d'", $item_guid, $item_id);
$dups = array();
while ($row = fof_db_get_row($result))
if (md5($row['item_content']) == $content_md5)
$dups[] = intval($row['item_id']);
if (!count($dups))
return array();
$result = fof_db_query(
"SELECT DISTINCT $FOF_SUBSCRIPTION_TABLE.user_id FROM $FOF_ITEM_TABLE, $FOF_SUBSCRIPTION_TABLE".
" WHERE item_id IN (".join(",",$dups).") AND $FOF_SUBSCRIPTION_TABLE.feed_id=$FOF_ITEM_TABLE.feed_id"
);
$users = array();
while ($row = fof_db_get_row($result))
$users[] = reset($row);
return $users;
}
function fof_db_set_feed_custom_title($user_id, $feed_id, $feed_title, $custom_title)
{
global $FOF_FEED_TABLE, $FOF_SUBSCRIPTION_TABLE;
$prefs = fof_db_get_subscription_prefs($user_id, $feed_id);
if (!$prefs)
return false;
if (!$custom_title || $feed_title == $custom_title)
$r = $prefs['feed_title'] = '';
else
$r = $prefs['feed_title'] = $custom_title;
fof_db_set_subscription_prefs($user_id, $feed_id, $prefs);
return $r;
}
function fof_db_get_top_readers($days, $count = NULL)
{
global $FOF_ITEM_TABLE, $FOF_USER_TABLE, $FOF_ITEM_TAG_TABLE, $FOF_SUBSCRIPTION_TABLE, $FOF_TAG_TABLE;
$result = fof_db_query(
"select u.*, count(i.item_id) posts from $FOF_USER_TABLE u
join $FOF_SUBSCRIPTION_TABLE s on s.user_id=u.user_id
join $FOF_ITEM_TABLE i on i.feed_id=s.feed_id
join $FOF_TAG_TABLE t on t.tag_name='unread'
left join $FOF_ITEM_TAG_TABLE ti on ti.tag_id=t.tag_id and ti.item_id=i.item_id and ti.user_id=u.user_id
where i.item_published > ".(time()-intval($days*86400))." and ti.tag_id is null
group by u.user_id order by posts desc
".(!is_null($count) ? "limit $count" : ""));
$readers = array();
while ($row = fof_db_get_row($result))
$readers[] = $row;
return $readers;
}
function fof_db_get_most_popular_feeds($count = NULL)
{
global $FOF_SUBSCRIPTION_TABLE, $FOF_FEED_TABLE;
$result = fof_db_query(
"select *, count(u.user_id) readers from $FOF_FEED_TABLE f join $FOF_SUBSCRIPTION_TABLE u on u.feed_id=f.feed_id
left join $FOF_SUBSCRIPTION_TABLE s on s.feed_id=f.feed_id and s.user_id=".fof_current_user()."
where s.feed_id is null and f.feed_url not regexp '^[a-z]+://[^/]+:[^/]*@'
group by f.feed_id having readers>1 order by readers desc
".(!is_null($count) ? "limit $count" : ""));
$feeds = array();
while ($row = fof_db_get_row($result))
$feeds[] = $row;
return $feeds;
}
function fof_db_get_feed_single_user($id)
{
global $FOF_SUBSCRIPTION_TABLE;
$result = fof_safe_query("SELECT user_id, COUNT(user_id) n FROM $FOF_SUBSCRIPTION_TABLE WHERE feed_id=%d GROUP BY feed_id", $id);
$row = fof_db_get_row($result);
if (!$row || $row['n'] > 1)
return NULL;
return $row['user_id'];
}
function fof_cache_fn($key)
{
if (preg_match('/[^a-z0-9_\-]/', $key))
$key = 'md5_'.md5($key);
return dirname(__FILE__).'/cache/'.$key;
}
function fof_cache_get($key)
{
$file = fof_cache_fn($key);
$fp = @fopen($file, "rb");
if (!$fp)
return NULL;
$expire = intval(fgets($fp));
$value = fread($fp, 1048576);
fclose($fp);
if (time() > $expire)
{
fof_cache_unset($key);
return NULL;
}
return $value;
}
function fof_cache_set($key, $value, $ttl = 86400)
{
$file = fof_cache_fn($key);
if ($fp = fopen($file, "wb"))
{
fwrite($fp, (time()+$ttl)."\n".$value);
fclose($fp);
return true;
}
return false;
}
function fof_cache_unset($key)
{
$file = fof_cache_fn($key);
@unlink($file);
}