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- <?php
- /**
- * MyBB 1.8
- * Copyright 2014 MyBB Group, All Rights Reserved
- *
- * Website: MyBB - Free and Open Source Forum Software
- * License: License Agreement - MyBB
- *
- */
- /**
- * Checks if a user with uid $uid exists in the database.
- *
- * @param int $uid The uid to check for.
- * @return boolean True when exists, false when not.
- */
- function user_exists($uid)
- {
- global $db;
- $query = $db->simple_select("users", "COUNT(*) as user", "uid='".(int)$uid."'", array('limit' => 1));
- if($db->fetch_field($query, 'user') == 1)
- {
- return true;
- }
- else
- {
- return false;
- }
- }
- /**
- * Checks if $username already exists in the database.
- *
- * @param string $username The username for check for.
- * @return boolean True when exists, false when not.
- */
- function username_exists($username)
- {
- $options = array(
- 'username_method' => 2
- );
- return (bool)get_user_by_username($username, $options);
- }
- /**
- * Checks a password with a supplied username.
- *
- * @param string $username The username of the user.
- * @param string $password The plain-text password.
- * @return boolean|array False when no match, array with user info when match.
- */
- function validate_password_from_username($username, $password)
- {
- global $mybb;
- $options = array(
- 'fields' => '*',
- 'username_method' => $mybb->settings['username_method'],
- );
- $user = get_user_by_username($username, $options);
- if(!$user['uid'])
- {
- return false;
- }
- return validate_password_from_uid($user['uid'], $password, $user);
- }
- /**
- * Checks a password with a supplied uid.
- *
- * @param int $uid The user id.
- * @param string $password The plain-text password.
- * @param array $user An optional user data array.
- * @return boolean|array False when not valid, user data array when valid.
- */
- function validate_password_from_uid($uid, $password, $user = array())
- {
- global $db, $mybb;
- if(isset($mybb->user['uid']) && $mybb->user['uid'] == $uid)
- {
- $user = $mybb->user;
- }
- if(!$user['password'])
- {
- $user = get_user($uid);
- }
- if(!$user['salt'])
- {
- // Generate a salt for this user and assume the password stored in db is a plain md5 password
- $password_fields = create_password($user['password'], false, $user);
- $db->update_query("users", $password_fields, "uid='".$user['uid']."'");
- }
- if(!$user['loginkey'])
- {
- $user['loginkey'] = generate_loginkey();
- $sql_array = array(
- "loginkey" => $user['loginkey']
- );
- $db->update_query("users", $sql_array, "uid = ".$user['uid']);
- }
- if(verify_user_password($user, $password))
- {
- return $user;
- }
- else
- {
- return false;
- }
- }
- /**
- * Updates a user's password.
- *
- * @param int $uid The user's id.
- * @param string $password The md5()'ed password.
- * @param string $salt (Optional) The salt of the user.
- * @return array The new password.
- * @deprecated deprecated since version 1.8.6 Please use other alternatives.
- */
- function update_password($uid, $password, $salt="")
- {
- global $db, $plugins;
- $newpassword = array();
- // If no salt was specified, check in database first, if still doesn't exist, create one
- if(!$salt)
- {
- $query = $db->simple_select("users", "salt", "uid='$uid'");
- $user = $db->fetch_array($query);
- if($user['salt'])
- {
- $salt = $user['salt'];
- }
- else
- {
- $salt = generate_salt();
- }
- $newpassword['salt'] = $salt;
- }
- // Create new password based on salt
- $saltedpw = salt_password($password, $salt);
- // Generate new login key
- $loginkey = generate_loginkey();
- // Update password and login key in database
- $newpassword['password'] = $saltedpw;
- $newpassword['loginkey'] = $loginkey;
- $db->update_query("users", $newpassword, "uid='$uid'");
- $plugins->run_hooks("password_changed");
- return $newpassword;
- }
- /**
- * Salts a password based on a supplied salt.
- *
- * @param string $password The md5()'ed password.
- * @param string $salt The salt.
- * @return string The password hash.
- * @deprecated deprecated since version 1.8.9 Please use other alternatives.
- */
- function salt_password($password, $salt)
- {
- return md5(md5($salt).$password);
- }
- /**
- * Salts a password based on a supplied salt.
- *
- * @param string $password The input password.
- * @param string $salt (Optional) The salt used by the MyBB algorithm.
- * @param string $user (Optional) An array containing password-related data.
- * @return array Password-related fields.
- */
- function create_password($password, $salt = false, $user = false)
- {
- global $plugins;
- $fields = null;
- $parameters = compact('password', 'salt', 'user', 'fields');
- if(!defined('IN_INSTALL') && !defined('IN_UPGRADE'))
- {
- $plugins->run_hooks('create_password', $parameters);
- }
- if(!is_null($parameters['fields']))
- {
- $fields = $parameters['fields'];
- }
- else
- {
- if(!$salt)
- {
- $salt = generate_salt();
- }
- $hash = md5(md5($salt).md5($password));
- $fields = array(
- 'salt' => $salt,
- 'password' => $hash,
- );
- }
- return $fields;
- }
- /**
- * Compares user's password data against provided input.
- *
- * @param array $user An array containing password-related data.
- * @param string $password The plain-text input password.
- * @return bool Result of the comparison.
- */
- function verify_user_password($user, $password)
- {
- global $plugins;
- $result = null;
- $parameters = compact('user', 'password', 'result');
- if(!defined('IN_INSTALL') && !defined('IN_UPGRADE'))
- {
- $plugins->run_hooks('verify_user_password', $parameters);
- }
- if(!is_null($parameters['result']))
- {
- return $parameters['result'];
- }
- else
- {
- $password_fields = create_password($password, $user['salt'], $user);
- return my_hash_equals($user['password'], $password_fields['password']);
- }
- }
- /**
- * Generates a random salt
- *
- * @return string The salt.
- */
- function generate_salt()
- {
- return random_str(8);
- }
- /**
- * Generates a 50 character random login key.
- *
- * @return string The login key.
- */
- function generate_loginkey()
- {
- return random_str(50);
- }
- /**
- * Updates a user's salt in the database (does not update a password).
- *
- * @param int $uid The uid of the user to update.
- * @return string The new salt.
- */
- function update_salt($uid)
- {
- global $db;
- $salt = generate_salt();
- $sql_array = array(
- "salt" => $salt
- );
- $db->update_query("users", $sql_array, "uid='{$uid}'");
- return $salt;
- }
- /**
- * Generates a new login key for a user.
- *
- * @param int $uid The uid of the user to update.
- * @return string The new login key.
- */
- function update_loginkey($uid)
- {
- global $db;
- $loginkey = generate_loginkey();
- $sql_array = array(
- "loginkey" => $loginkey
- );
- $db->update_query("users", $sql_array, "uid='{$uid}'");
- return $loginkey;
- }
- /**
- * Adds a thread to a user's thread subscription list.
- * If no uid is supplied, the currently logged in user's id will be used.
- *
- * @param int $tid The tid of the thread to add to the list.
- * @param int $notification (Optional) The type of notification to receive for replies (0=none, 1=email, 2=pm)
- * @param int $uid (Optional) The uid of the user who's list to update.
- * @return boolean True when success, false when otherwise.
- */
- function add_subscribed_thread($tid, $notification=1, $uid=0)
- {
- global $mybb, $db;
- if(!$uid)
- {
- $uid = $mybb->user['uid'];
- }
- if(!$uid)
- {
- return false;
- }
- $query = $db->simple_select("threadsubscriptions", "*", "tid='".(int)$tid."' AND uid='".(int)$uid."'");
- $subscription = $db->fetch_array($query);
- if(!$subscription['tid'])
- {
- $insert_array = array(
- 'uid' => (int)$uid,
- 'tid' => (int)$tid,
- 'notification' => (int)$notification,
- 'dateline' => TIME_NOW
- );
- $db->insert_query("threadsubscriptions", $insert_array);
- }
- else
- {
- // Subscription exists - simply update notification
- $update_array = array(
- "notification" => (int)$notification
- );
- $db->update_query("threadsubscriptions", $update_array, "uid='{$uid}' AND tid='{$tid}'");
- }
- return true;
- }
- /**
- * Remove a thread from a user's thread subscription list.
- * If no uid is supplied, the currently logged in user's id will be used.
- *
- * @param int $tid The tid of the thread to remove from the list.
- * @param int $uid (Optional) The uid of the user who's list to update.
- * @return boolean True when success, false when otherwise.
- */
- function remove_subscribed_thread($tid, $uid=0)
- {
- global $mybb, $db;
- if(!$uid)
- {
- $uid = $mybb->user['uid'];
- }
- if(!$uid)
- {
- return false;
- }
- $db->delete_query("threadsubscriptions", "tid='".$tid."' AND uid='{$uid}'");
- return true;
- }
- /**
- * Adds a forum to a user's forum subscription list.
- * If no uid is supplied, the currently logged in user's id will be used.
- *
- * @param int $fid The fid of the forum to add to the list.
- * @param int $uid (Optional) The uid of the user who's list to update.
- * @return boolean True when success, false when otherwise.
- */
- function add_subscribed_forum($fid, $uid=0)
- {
- global $mybb, $db;
- if(!$uid)
- {
- $uid = $mybb->user['uid'];
- }
- if(!$uid)
- {
- return false;
- }
- $fid = (int)$fid;
- $uid = (int)$uid;
- $query = $db->simple_select("forumsubscriptions", "*", "fid='".$fid."' AND uid='{$uid}'", array('limit' => 1));
- $fsubscription = $db->fetch_array($query);
- if(!$fsubscription['fid'])
- {
- $insert_array = array(
- 'fid' => $fid,
- 'uid' => $uid
- );
- $db->insert_query("forumsubscriptions", $insert_array);
- }
- return true;
- }
- /**
- * Removes a forum from a user's forum subscription list.
- * If no uid is supplied, the currently logged in user's id will be used.
- *
- * @param int $fid The fid of the forum to remove from the list.
- * @param int $uid (Optional) The uid of the user who's list to update.
- * @return boolean True when success, false when otherwise.
- */
- function remove_subscribed_forum($fid, $uid=0)
- {
- global $mybb, $db;
- if(!$uid)
- {
- $uid = $mybb->user['uid'];
- }
- if(!$uid)
- {
- return false;
- }
- $db->delete_query("forumsubscriptions", "fid='".$fid."' AND uid='{$uid}'");
- return true;
- }
- /**
- * Constructs the usercp navigation menu.
- *
- */
- function usercp_menu()
- {
- global $mybb, $templates, $theme, $plugins, $lang, $usercpnav, $usercpmenu;
- $lang->load("usercpnav");
- // Add the default items as plugins with separated priorities of 10
- if($mybb->settings['enablepms'] != 0 && $mybb->usergroup['canusepms'] == 1)
- {
- $plugins->add_hook("usercp_menu", "usercp_menu_messenger", 10);
- }
- if($mybb->usergroup['canusercp'] == 1)
- {
- $plugins->add_hook("usercp_menu", "usercp_menu_profile", 20);
- $plugins->add_hook("usercp_menu", "usercp_menu_misc", 30);
- }
- // Run the plugin hooks
- $plugins->run_hooks("usercp_menu");
- global $usercpmenu;
- if($mybb->usergroup['canusercp'] == 1)
- {
- eval("\$ucp_nav_home = \"".$templates->get("usercp_nav_home")."\";");
- }
- eval("\$usercpnav = \"".$templates->get("usercp_nav")."\";");
- $plugins->run_hooks("usercp_menu_built");
- }
- /**
- * Constructs the usercp messenger menu.
- *
- */
- function usercp_menu_messenger()
- {
- global $db, $mybb, $templates, $theme, $usercpmenu, $lang, $collapse, $collapsed, $collapsedimg;
- $expaltext = (in_array("usercppms", $collapse)) ? "[+]" : "[-]";
- $usercp_nav_messenger = $templates->get("usercp_nav_messenger");
- // Hide tracking link if no permission
- $tracking = '';
- if($mybb->usergroup['cantrackpms'])
- {
- $tracking = $templates->get("usercp_nav_messenger_tracking");
- }
- eval("\$ucp_nav_tracking = \"". $tracking ."\";");
- // Hide compose link if no permission
- $ucp_nav_compose = '';
- if($mybb->usergroup['cansendpms'] == 1)
- {
- eval("\$ucp_nav_compose = \"".$templates->get("usercp_nav_messenger_compose")."\";");
- }
- $folderlinks = $folder_id = $folder_name = '';
- $foldersexploded = explode("$%%$", $mybb->user['pmfolders']);
- foreach($foldersexploded as $key => $folders)
- {
- $folderinfo = explode("**", $folders, 2);
- $folderinfo[1] = get_pm_folder_name($folderinfo[0], $folderinfo[1]);
- if($folderinfo[0] == 4)
- {
- $class = "usercp_nav_trash_pmfolder";
- }
- else if($folderlinks)
- {
- $class = "usercp_nav_sub_pmfolder";
- }
- else
- {
- $class = "usercp_nav_pmfolder";
- }
- $folder_id = $folderinfo[0];
- $folder_name = $folderinfo[1];
- eval("\$folderlinks .= \"".$templates->get("usercp_nav_messenger_folder")."\";");
- }
- if(!isset($collapsedimg['usercppms']))
- {
- $collapsedimg['usercppms'] = '';
- }
- if(!isset($collapsed['usercppms_e']))
- {
- $collapsed['usercppms_e'] = '';
- }
- eval("\$usercpmenu .= \"".$usercp_nav_messenger."\";");
- }
- /**
- * Constructs the usercp profile menu.
- *
- */
- function usercp_menu_profile()
- {
- global $db, $mybb, $templates, $theme, $usercpmenu, $lang, $collapse, $collapsed, $collapsedimg;
- $changenameop = '';
- if($mybb->usergroup['canchangename'] != 0)
- {
- eval("\$changenameop = \"".$templates->get("usercp_nav_changename")."\";");
- }
- $changesigop = '';
- if($mybb->usergroup['canusesig'] == 1 && ($mybb->usergroup['canusesigxposts'] == 0 || $mybb->usergroup['canusesigxposts'] > 0 && $mybb->user['postnum'] > $mybb->usergroup['canusesigxposts']))
- {
- if($mybb->user['suspendsignature'] == 0 || $mybb->user['suspendsignature'] == 1 && $mybb->user['suspendsigtime'] > 0 && $mybb->user['suspendsigtime'] < TIME_NOW)
- {
- eval("\$changesigop = \"".$templates->get("usercp_nav_editsignature")."\";");
- }
- }
- if(!isset($collapsedimg['usercpprofile']))
- {
- $collapsedimg['usercpprofile'] = '';
- }
- if(!isset($collapsed['usercpprofile_e']))
- {
- $collapsed['usercpprofile_e'] = '';
- }
- $expaltext = (in_array("usercpprofile", $collapse)) ? "[+]" : "[-]";
- eval("\$usercpmenu .= \"".$templates->get("usercp_nav_profile")."\";");
- }
- /**
- * Constructs the usercp misc menu.
- *
- */
- function usercp_menu_misc()
- {
- global $db, $mybb, $templates, $theme, $usercpmenu, $lang, $collapse, $collapsed, $collapsedimg;
- $draftstart = $draftend = '';
- $draftcount = $lang->ucp_nav_drafts;
- $query = $db->simple_select("posts", "COUNT(pid) AS draftcount", "visible = '-2' AND uid = '{$mybb->user['uid']}'");
- $count = $db->fetch_field($query, 'draftcount');
- if($count > 0)
- {
- $draftcount = $lang->sprintf($lang->ucp_nav_drafts_active, my_number_format($count));
- }
- if($mybb->settings['enableattachments'] != 0)
- {
- eval("\$attachmentop = \"".$templates->get("usercp_nav_attachments")."\";");
- }
- if(!isset($collapsedimg['usercpmisc']))
- {
- $collapsedimg['usercpmisc'] = '';
- }
- if(!isset($collapsed['usercpmisc_e']))
- {
- $collapsed['usercpmisc_e'] = '';
- }
- $profile_link = get_profile_link($mybb->user['uid']);
- $expaltext = (in_array("usercpmisc", $collapse)) ? "[+]" : "[-]";
- eval("\$usercpmenu .= \"".$templates->get("usercp_nav_misc")."\";");
- }
- /**
- * Gets the usertitle for a specific uid.
- *
- * @param int $uid The uid of the user to get the usertitle of.
- * @return string The usertitle of the user.
- */
- function get_usertitle($uid=0)
- {
- global $db, $mybb;
- if($mybb->user['uid'] == $uid)
- {
- $user = $mybb->user;
- }
- else
- {
- $query = $db->simple_select("users", "usertitle,postnum", "uid='$uid'", array('limit' => 1));
- $user = $db->fetch_array($query);
- }
- if($user['usertitle'])
- {
- return $user['usertitle'];
- }
- else
- {
- $usertitles = $mybb->cache->read('usertitles');
- foreach($usertitles as $title)
- {
- if($title['posts'] <= $user['postnum'])
- {
- $usertitle = $title;
- break;
- }
- }
- return $usertitle['title'];
- }
- }
- /**
- * Updates a users private message count in the users table with the number of pms they have.
- *
- * @param int $uid The user id to update the count for. If none, assumes currently logged in user.
- * @param int $count_to_update Bitwise value for what to update. 1 = total, 2 = new, 4 = unread. Combinations accepted.
- * @return array The updated counters
- */
- function update_pm_count($uid=0, $count_to_update=7)
- {
- global $db, $mybb;
- // If no user id, assume that we mean the current logged in user.
- if((int)$uid == 0)
- {
- $uid = $mybb->user['uid'];
- }
- $uid = (int)$uid;
- $pmcount = array();
- if($uid == 0)
- {
- return $pmcount;
- }
- // Update total number of messages.
- if($count_to_update & 1)
- {
- $query = $db->simple_select("privatemessages", "COUNT(pmid) AS pms_total", "uid='".$uid."'");
- $total = $db->fetch_array($query);
- $pmcount['totalpms'] = $total['pms_total'];
- }
- // Update number of unread messages.
- if($count_to_update & 2 && $db->field_exists("unreadpms", "users") == true)
- {
- $query = $db->simple_select("privatemessages", "COUNT(pmid) AS pms_unread", "uid='".$uid."' AND status='0' AND folder='1'");
- $unread = $db->fetch_array($query);
- $pmcount['unreadpms'] = $unread['pms_unread'];
- }
- if(!empty($pmcount))
- {
- $db->update_query("users", $pmcount, "uid='".$uid."'");
- }
- return $pmcount;
- }
- /**
- * Return the language specific name for a PM folder.
- *
- * @param int $fid The ID of the folder.
- * @param string $name The folder name - can be blank, will use language default.
- * @return string The name of the folder.
- */
- function get_pm_folder_name($fid, $name="")
- {
- global $lang;
- if($name != '')
- {
- return $name;
- }
- switch($fid)
- {
- case 1:
- return $lang->folder_inbox;
- break;
- case 2:
- return $lang->folder_sent_items;
- break;
- case 3:
- return $lang->folder_drafts;
- break;
- case 4:
- return $lang->folder_trash;
- break;
- default:
- return $lang->folder_untitled;
- }
- }
- /**
- * Generates a security question for registration.
- *
- * @param int $old_qid Optional ID of the old question.
- * @return string The question session id.
- */
- function generate_question($old_qid=0)
- {
- global $db;
- if($db->type == 'pgsql' || $db->type == 'sqlite')
- {
- $order_by = 'RANDOM()';
- }
- else
- {
- $order_by = 'RAND()';
- }
- if($old_qid)
- {
- $excl_old = ' AND qid != '.(int)$old_qid;
- }
- $query = $db->simple_select('questions', 'qid, shown', "active=1{$excl_old}", array('limit' => 1, 'order_by' => $order_by));
- $question = $db->fetch_array($query);
- if(!$db->num_rows($query))
- {
- // No active questions exist
- return false;
- }
- else
- {
- $sessionid = random_str(32);
- $sql_array = array(
- "sid" => $sessionid,
- "qid" => $question['qid'],
- "dateline" => TIME_NOW
- );
- $db->insert_query("questionsessions", $sql_array);
- $update_question = array(
- "shown" => $question['shown'] + 1
- );
- $db->update_query("questions", $update_question, "qid = '{$question['qid']}'");
- return $sessionid;
- }
- }
- /**
- * Check whether we can show the Purge Spammer Feature
- *
- * @param int $post_count The users post count
- * @param int $usergroup The usergroup of our user
- * @param int $uid The uid of our user
- * @return boolean Whether or not to show the feature
- */
- function purgespammer_show($post_count, $usergroup, $uid)
- {
- global $mybb, $cache;
- // only show this if the current user has permission to use it and the user has less than the post limit for using this tool
- $bangroup = $mybb->settings['purgespammerbangroup'];
- $usergroups = $cache->read('usergroups');
- return ($mybb->user['uid'] != $uid && is_member($mybb->settings['purgespammergroups']) && !is_super_admin($uid)
- && !$usergroups[$usergroup]['cancp'] && !$usergroups[$usergroup]['canmodcp'] && !$usergroups[$usergroup]['issupermod']
- && (str_replace($mybb->settings['thousandssep'], '', $post_count) <= $mybb->settings['purgespammerpostlimit'] || $mybb->settings['purgespammerpostlimit'] == 0)
- && !is_member($bangroup, $uid) && !$usergroups[$usergroup]['isbannedgroup']);
- }
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