\n"; print __("Click on the Home link above to login."); print "
\n"; } } else { # no errors, go ahead and modify the user account $q = "UPDATE Users SET "; $q.= "Username = '".db_escape_string($U)."'"; if ($T) { $q.= ", AccountTypeID = ".intval($T); } if ($S) { $q.= ", Suspended = 1"; } else { $q.= ", Suspended = 0"; } $q.= ", Email = '".db_escape_string($E)."'"; if ($P) { $salt = generate_salt(); $hash = salted_hash($P, $salt); $q .= ", Passwd = '$hash', Salt = '$salt'"; } $q.= ", RealName = '".db_escape_string($R)."'"; $q.= ", LangPreference = '".db_escape_string($L)."'"; $q.= ", IRCNick = '".db_escape_string($I)."'"; $q.= ", PGPKey = '".db_escape_string(str_replace(" ", "", $K))."'"; $q.= " WHERE ID = ".intval($UID); $result = db_query($q, $dbh); if (!$result) { print __("Error trying to modify account, %s%s%s: %s.", "", htmlspecialchars($U,ENT_QUOTES), "", mysql_error($dbh)); } else { print __("The account, %s%s%s, has been successfully modified.", "", htmlspecialchars($U,ENT_QUOTES), ""); } } } return; } # search existing accounts # function search_accounts_form() { include("search_accounts_form.php"); return; } # search results page # function search_results_page($UTYPE,$O=0,$SB="",$U="",$T="", $S="",$E="",$R="",$I="",$K="",$dbh=NULL) { # UTYPE: what account type the user belongs to # O: what row offset we're at # SB: how to sort the results # U: value to display for username # T: value to display for account type # S: value to display for account suspended # E: value to display for email address # R: value to display for RealName # I: value to display for IRC nick $HITS_PER_PAGE = 50; if ($O) { $OFFSET = intval($O); } else { $OFFSET = 0; } if ($OFFSET < 0) { $OFFSET = 0; } $search_vars = array(); $q = "SELECT Users.*, AccountTypes.AccountType "; $q.= "FROM Users, AccountTypes "; $q.= "WHERE AccountTypes.ID = Users.AccountTypeID "; if ($T == "u") { $q.= "AND AccountTypes.ID = 1 "; $search_vars[] = "T"; } elseif ($T == "t") { $q.= "AND AccountTypes.ID = 2 "; $search_vars[] = "T"; } elseif ($T == "d") { $q.= "AND AccountTypes.ID = 3 "; $search_vars[] = "T"; } if ($S) { $q.= "AND Users.Suspended = 1 "; $search_vars[] = "S"; } if ($U) { $q.= "AND Username LIKE '%".db_escape_like($U)."%' "; $search_vars[] = "U"; } if ($E) { $q.= "AND Email LIKE '%".db_escape_like($E)."%' "; $search_vars[] = "E"; } if ($R) { $q.= "AND RealName LIKE '%".db_escape_like($R)."%' "; $search_vars[] = "R"; } if ($I) { $q.= "AND IRCNick LIKE '%".db_escape_like($I)."%' "; $search_vars[] = "I"; } if ($K) { $q.= "AND PGPKey LIKE '%".db_escape_like(str_replace(" ", "", $K))."%' "; $search_vars[] = "K"; } switch ($SB) { case 't': $q.= "ORDER BY AccountTypeID, Username "; break; case 'r': $q.= "ORDER BY RealName, AccountTypeID "; break; case 'i': $q.= "ORDER BY IRCNick, AccountTypeID "; break; case 'v': $q.= "ORDER BY LastVoted, Username "; break; default: $q.= "ORDER BY Username, AccountTypeID "; break; } $search_vars[] = "SB"; $q.= "LIMIT " . $HITS_PER_PAGE . " OFFSET " . $OFFSET; if (!$dbh) { $dbh = db_connect(); } $result = db_query($q, $dbh); $num_rows = mysql_num_rows($result); while ($row = mysql_fetch_assoc($result)) { $userinfo[] = $row; } include("account_search_results.php"); return; } /* * Returns SID (Session ID) and error (error message) in an array * SID of 0 means login failed. */ function try_login($dbh=NULL) { global $MAX_SESSIONS_PER_USER, $PERSISTENT_COOKIE_TIMEOUT; $login_error = ""; $new_sid = ""; $userID = null; if ( isset($_REQUEST['user']) || isset($_REQUEST['passwd']) ) { if (!$dbh) { $dbh = db_connect(); } $userID = valid_user($_REQUEST['user'], $dbh); if ( user_suspended($userID, $dbh) ) { $login_error = "Account Suspended."; } elseif ( $userID && isset($_REQUEST['passwd']) && valid_passwd($userID, $_REQUEST['passwd'], $dbh) ) { $logged_in = 0; $num_tries = 0; # Account looks good. Generate a SID and store it. while (!$logged_in && $num_tries < 5) { if ($MAX_SESSIONS_PER_USER) { # Delete all user sessions except the # last ($MAX_SESSIONS_PER_USER - 1). $q = "DELETE s.* FROM Sessions s "; $q.= "LEFT JOIN (SELECT SessionID FROM Sessions "; $q.= "WHERE UsersId = " . $userID . " "; $q.= "ORDER BY LastUpdateTS DESC "; $q.= "LIMIT " . ($MAX_SESSIONS_PER_USER - 1) . ") q "; $q.= "ON s.SessionID = q.SessionID "; $q.= "WHERE s.UsersId = " . $userID . " "; $q.= "AND q.SessionID IS NULL;"; db_query($q, $dbh); } $new_sid = new_sid(); $q = "INSERT INTO Sessions (UsersID, SessionID, LastUpdateTS)" ." VALUES (" . $userID . ", '" . $new_sid . "', UNIX_TIMESTAMP())"; $result = db_query($q, $dbh); # Query will fail if $new_sid is not unique if ($result) { $logged_in = 1; break; } $num_tries++; } if ($logged_in) { $q = "UPDATE Users SET LastLogin = UNIX_TIMESTAMP() "; $q.= "WHERE ID = '$userID'"; db_query($q, $dbh); # set our SID cookie if (isset($_POST['remember_me']) && $_POST['remember_me'] == "on") { # Set cookies for 30 days. $cookie_time = time() + $PERSISTENT_COOKIE_TIMEOUT; # Set session for 30 days. $q = "UPDATE Sessions SET LastUpdateTS = $cookie_time "; $q.= "WHERE SessionID = '$new_sid'"; db_query($q, $dbh); } else $cookie_time = 0; setcookie("AURSID", $new_sid, $cookie_time, "/", null, !empty($_SERVER['HTTPS']), true); header("Location: " . $_SERVER['PHP_SELF'].'?'.$_SERVER['QUERY_STRING']); $login_error = ""; } else { $login_error = "Error trying to generate session id."; } } else { $login_error = __("Bad username or password."); } } return array('SID' => $new_sid, 'error' => $login_error); } /* * Only checks if the name itself is valid * Longer or equal to USERNAME_MIN_LEN * Shorter or equal to USERNAME_MAX_LEN * Starts and ends with a letter or number * Contains at most ONE dot, hyphen, or underscore * Returns the username if it is valid * Returns nothing if it isn't valid */ function valid_username($user) { if (!empty($user)) { #Is username at not too short or too long? if ( strlen($user) >= USERNAME_MIN_LEN && strlen($user) <= USERNAME_MAX_LEN ) { $user = strtolower($user); # Does username: # start and end with a letter or number # contain only letters and numbers, # and at most has one dash, period, or underscore if ( preg_match("/^[a-z0-9]+[.\-_]?[a-z0-9]+$/", $user) ) { #All is good return the username return $user; } } } return; } /* * Checks if the username is valid and if it exists in the database * Returns the username ID or nothing */ function valid_user($user, $dbh=NULL) { /* if ( $user = valid_username($user) ) { */ if(!$dbh) { $dbh = db_connect(); } if ( $user ) { $q = "SELECT ID FROM Users WHERE Username = '" . db_escape_string($user). "'"; $result = db_query($q, $dbh); # Is the username in the database? if ($result) { $row = mysql_fetch_row($result); return $row[0]; } } return; } # Check for any open proposals about a user. Used to prevent multiple proposals. function open_user_proposals($user, $dbh=NULL) { if(!$dbh) { $dbh = db_connect(); } $q = "SELECT * FROM TU_VoteInfo WHERE User = '" . db_escape_string($user) . "'"; $q.= " AND End > UNIX_TIMESTAMP()"; $result = db_query($q, $dbh); if (mysql_num_rows($result)) { return true; } else { return false; } } # Creates a new trusted user proposal from entered agenda. # Optionally takes proposal about specific user. Length of vote set by submitter. function add_tu_proposal($agenda, $user, $votelength, $submitteruid, $dbh=NULL) { if(!$dbh) { $dbh = db_connect(); } $q = "INSERT INTO TU_VoteInfo (Agenda, User, Submitted, End, SubmitterID) VALUES "; $q.= "('" . db_escape_string($agenda) . "', "; $q.= "'" . db_escape_string($user) . "', "; $q.= "UNIX_TIMESTAMP(), UNIX_TIMESTAMP() + " . db_escape_string($votelength); $q.= ", " . $submitteruid . ")"; db_query($q, $dbh); } # Add a reset key for a specific user function create_resetkey($resetkey, $uid, $dbh=NULL) { if(!$dbh) { $dbh = db_connect(); } $q = "UPDATE Users "; $q.= "SET ResetKey = '" . $resetkey . "' "; $q.= "WHERE ID = " . $uid; db_query($q, $dbh); } # Change a password and save the salt only if reset key and email are correct function password_reset($hash, $salt, $resetkey, $email, $dbh=NULL) { if(!$dbh) { $dbh = db_connect(); } $q = "UPDATE Users "; $q.= "SET Passwd = '$hash', "; $q.= "Salt = '$salt', "; $q.= "ResetKey = '' "; $q.= "WHERE ResetKey != '' "; $q.= "AND ResetKey = '".db_escape_string($resetkey)."' "; $q.= "AND Email = '".db_escape_string($email)."'"; $result = db_query($q, $dbh); if (!mysql_affected_rows($dbh)) { $error = __('Invalid e-mail and reset key combination.'); return $error; } else { header('Location: passreset.php?step=complete'); exit(); } } function good_passwd($passwd) { if ( strlen($passwd) >= PASSWD_MIN_LEN ) { return true; } return false; } /* Verifies that the password is correct for the userID specified. * Returns true or false */ function valid_passwd($userID, $passwd, $dbh=NULL) { if (!$dbh) { $dbh = db_connect(); } if ( strlen($passwd) > 0 ) { # get salt for this user $salt = get_salt($userID); if ($salt) { # use salt $passwd_q = "SELECT ID FROM Users" . " WHERE ID = " . $userID . " AND Passwd = '" . salted_hash($passwd, $salt) . "'"; $result = db_query($passwd_q, $dbh); if ($result) { $passwd_result = mysql_fetch_row($result); if ($passwd_result[0]) { return true; } } } else { # check without salt $nosalt_q = "SELECT ID FROM Users". " WHERE ID = " . $userID . " AND Passwd = '" . md5($passwd) . "'"; $result = db_query($nosalt_q, $dbh); if ($result) { $nosalt_row = mysql_fetch_row($result); if ($nosalt_row[0]) { # password correct, but salt it first if (!save_salt($userID, $passwd)) { trigger_error("Unable to salt user's password;" . " ID " . $userID, E_USER_WARNING); return false; } return true; } } } } return false; } /* * Checks if the PGP key fingerprint is valid (must be 40 hexadecimal digits). */ function valid_pgp_fingerprint($fingerprint) { $fingerprint = str_replace(" ", "", $fingerprint); return (strlen($fingerprint) == 40 && ctype_xdigit($fingerprint)); } /* * Is the user account suspended? */ function user_suspended($id, $dbh=NULL) { if (!$dbh) { $dbh = db_connect(); } if (!$id) { return false; } $q = "SELECT Suspended FROM Users WHERE ID = " . $id; $result = db_query($q, $dbh); if ($result) { $row = mysql_fetch_row($result); if ($result[0] == 1 ) { return true; } } return false; } /* * This should be expanded to return something */ function user_delete($id, $dbh=NULL) { if (!$dbh) { $dbh = db_connect(); } $q = "DELETE FROM Users WHERE ID = " . $id; db_query($q, $dbh); return; } /* * A different way of determining a user's privileges * rather than account_from_sid() */ function user_is_privileged($id, $dbh=NULL) { if (!$dbh) { $dbh = db_connect(); } $q = "SELECT AccountTypeID FROM Users WHERE ID = " . $id; $result = db_query($q, $dbh); if ($result) { $row = mysql_fetch_row($result); if($row[0] > 1) { return $row[0]; } } return 0; } # Remove session on logout function delete_session_id($sid, $dbh=NULL) { if(!$dbh) { $dbh = db_connect(); } $q = "DELETE FROM Sessions WHERE SessionID = '"; $q.= db_escape_string($sid) . "'"; db_query($q, $dbh); } # Clear out old expired sessions. function clear_expired_sessions($dbh=NULL) { global $LOGIN_TIMEOUT; if(!$dbh) { $dbh = db_connect(); } $q = "DELETE FROM Sessions WHERE LastUpdateTS < (UNIX_TIMESTAMP() - $LOGIN_TIMEOUT)"; db_query($q, $dbh); return; } function account_details($uid, $username, $dbh=NULL) { if(!$dbh) { $dbh = db_connect(); } $q = "SELECT Users.*, AccountTypes.AccountType "; $q.= "FROM Users, AccountTypes "; $q.= "WHERE AccountTypes.ID = Users.AccountTypeID "; if (!empty($uid)) { $q.= "AND Users.ID = ".intval($uid); } else { $q.= "AND Users.Username = '".db_escape_string($username) . "'"; } $result = db_query($q, $dbh); if ($result) { $row = mysql_fetch_assoc($result); } return $row; } function own_account_details($sid, $dbh=NULL) { if(!$dbh) { $dbh = db_connect(); } $q = "SELECT Users.*, AccountTypes.AccountType "; $q.= "FROM Users, AccountTypes, Sessions "; $q.= "WHERE AccountTypes.ID = Users.AccountTypeID "; $q.= "AND Users.ID = Sessions.UsersID "; $q.= "AND Sessions.SessionID = '"; $q.= db_escape_string($sid)."'"; $result = db_query($q, $dbh); if ($result) { $row = mysql_fetch_assoc($result); } return $row; } function tu_voted($voteid, $uid, $dbh=NULL) { if (!$dbh) { $dbh = db_connect(); } $q = "SELECT * FROM TU_Votes WHERE VoteID = " . intval($voteid) . " AND UserID = " . intval($uid); $result = db_query($q, $dbh); if (mysql_num_rows($result)) { return true; } else { return false; } } function current_proposal_list($order, $dbh=NULL) { if (!$dbh) { $dbh = db_connect(); } $q = "SELECT * FROM TU_VoteInfo WHERE End > " . time() . " ORDER BY Submitted " . $order; $result = db_query($q, $dbh); while ($row = mysql_fetch_assoc($result)) { $details[] = $row; } return $details; } function past_proposal_list($order, $lim, $dbh=NULL) { if (!$dbh) { $dbh = db_connect(); } $q = "SELECT * FROM TU_VoteInfo WHERE End < " . time() . " ORDER BY Submitted " . $order . $lim; $result = db_query($q, $dbh); while ($row = mysql_fetch_assoc($result)) { $details[] = $row; } return $details; } function proposal_count($dbh=NULL) { if (!$dbh) { $dbh = db_connect(); } $q = "SELECT COUNT(*) FROM TU_VoteInfo"; $result = db_query($q, $dbh); $row = mysql_fetch_row($result); return $row[0]; } function vote_details($voteid, $dbh=NULL) { if (!$dbh) { $dbh = db_connect(); } $q = "SELECT * FROM TU_VoteInfo "; $q.= "WHERE ID = " . intval($voteid); $result = db_query($q, $dbh); $row = mysql_fetch_assoc($result); return $row; } function voter_list($voteid, $dbh=NULL) { if (!$dbh) { $dbh = db_connect(); } $q = "SELECT tv.UserID,U.Username "; $q.= "FROM TU_Votes tv, Users U "; $q.= "WHERE tv.VoteID = " . intval($voteid); $q.= " AND tv.UserID = U.ID "; $q.= "ORDER BY Username"; $result = db_query($q, $dbh); if ($result) { while ($row = mysql_fetch_assoc($result)) { $whovoted.= ''.$row['Username'].' '; } } return $whovoted; } function cast_proposal_vote($voteid, $uid, $vote, $newtotal, $dbh=NULL) { if (!$dbh) { $dbh = db_connect(); } $q = "UPDATE TU_VoteInfo SET " . $vote . " = " . ($newtotal) . " WHERE ID = " . $voteid; db_query($q, $dbh); $q = "INSERT INTO TU_Votes (VoteID, UserID) VALUES (" . $voteid . ", " . $uid . ")"; db_query($q, $dbh); }