1 files changed, 593 insertions, 0 deletions
diff --git a/web/lib/aur.inc.php b/web/lib/aur.inc.php
new file mode 100644
index 0000000..572d781
--- /dev/null
+++ b/web/lib/aur.inc.php
@@ -0,0 +1,593 @@
+<?php
+set_include_path(get_include_path() . PATH_SEPARATOR . '../lib' . PATH_SEPARATOR . '../template');
+header('Content-Type: text/html; charset=utf-8');
+header('Cache-Control: no-cache, must-revalidate');
+header('Expires: Tue, 11 Oct 1988 22:00:00 GMT'); // quite a special day
+header('Pragma: no-cache');
+
+date_default_timezone_set('UTC');
+
+include_once('translator.inc.php');
+set_lang();
+
+include_once("config.inc.php");
+include_once("version.inc.php");
+include_once("acctfuncs.inc.php");
+
+# Check if APC extension is loaded, and set cache prefix if it is.
+if (!defined('EXTENSION_LOADED_APC')) {
+	define('EXTENSION_LOADED_APC', extension_loaded('apc'));
+	define('APC_PREFIX', 'aur:');
+}
+
+# see if the visitor is already logged in
+#
+function check_sid() {
+	global $_COOKIE;
+	global $LOGIN_TIMEOUT;
+
+	if (isset($_COOKIE["AURSID"])) {
+		$failed = 0;
+		# the visitor is logged in, try and update the session
+		#
+		$dbh = db_connect();
+		$q = "SELECT LastUpdateTS, UNIX_TIMESTAMP() FROM Sessions ";
+		$q.= "WHERE SessionID = '" . mysql_real_escape_string($_COOKIE["AURSID"]) . "'";
+		$result = db_query($q, $dbh);
+		if (mysql_num_rows($result) == 0) {
+			# Invalid SessionID - hacker alert!
+			#
+			$failed = 1;
+		} else {
+			$row = mysql_fetch_row($result);
+			$last_update = $row[0];
+			if ($last_update + $LOGIN_TIMEOUT <= $row[1]) {
+				$failed = 2;
+			}
+		}
+
+		if ($failed == 1) {
+			# clear out the hacker's cookie, and send them to a naughty page
+			# why do you have to be so harsh on these people!?
+			#
+			setcookie("AURSID", "", 1, "/");
+			unset($_COOKIE['AURSID']);
+		} elseif ($failed == 2) {
+			# session id timeout was reached and they must login again.
+			#
+			$q = "DELETE FROM Sessions WHERE SessionID = '";
+			$q.= mysql_real_escape_string($_COOKIE["AURSID"]) . "'";
+			db_query($q, $dbh);
+
+			setcookie("AURSID", "", 1, "/");
+			unset($_COOKIE['AURSID']);
+		} else {
+			# still logged in and haven't reached the timeout, go ahead
+			# and update the idle timestamp
+
+			# Only update the timestamp if it is less than the
+			# current time plus $LOGIN_TIMEOUT.
+			#
+			# This keeps 'remembered' sessions from being
+			# overwritten.
+			if ($last_update < time() + $LOGIN_TIMEOUT) {
+				$q = "UPDATE Sessions SET LastUpdateTS = UNIX_TIMESTAMP() ";
+				$q.= "WHERE SessionID = '".mysql_real_escape_string($_COOKIE["AURSID"])."'";
+				db_query($q, $dbh);
+			}
+		}
+	}
+	return;
+}
+
+# verify that an email address looks like it is legitimate
+#
+function valid_email($addy) {
+	return strpos($addy, '@');
+}
+
+# a new seed value for mt_srand()
+#
+function make_seed() {
+	list($usec, $sec) = explode(' ', microtime());
+	return (float) $sec + ((float) $usec * 10000);
+}
+
+# generate a (hopefully) unique session id
+#
+function new_sid() {
+	mt_srand(make_seed());
+	$ts = time();
+	$pid = getmypid();
+
+	$rand_num = mt_rand();
+	mt_srand(make_seed());
+	$rand_str = substr(md5(mt_rand()),2, 20);
+
+	$id = $rand_str . strtolower(md5($ts.$pid)) . $rand_num;
+	return strtoupper(md5($id));
+}
+
+
+# obtain the username if given their Users.ID
+#
+function username_from_id($id="") {
+	if (!$id) {
+		return "";
+	}
+	$dbh = db_connect();
+	$q = "SELECT Username FROM Users WHERE ID = " . mysql_real_escape_string($id);
+	$result = db_query($q, $dbh);
+	if (!$result) {
+		return "None";
+	}
+	$row = mysql_fetch_row($result);
+
+	return $row[0];
+}
+
+
+# obtain the username if given their current SID
+#
+function username_from_sid($sid="") {
+	if (!$sid) {
+		return "";
+	}
+	$dbh = db_connect();
+	$q = "SELECT Username ";
+	$q.= "FROM Users, Sessions ";
+	$q.= "WHERE Users.ID = Sessions.UsersID ";
+	$q.= "AND Sessions.SessionID = '" . mysql_real_escape_string($sid) . "'";
+	$result = db_query($q, $dbh);
+	if (!$result) {
+		return "";
+	}
+	$row = mysql_fetch_row($result);
+
+	return $row[0];
+}
+
+# obtain the email address if given their current SID
+#
+function email_from_sid($sid="") {
+	if (!$sid) {
+		return "";
+	}
+	$dbh = db_connect();
+	$q = "SELECT Email ";
+	$q.= "FROM Users, Sessions ";
+	$q.= "WHERE Users.ID = Sessions.UsersID ";
+	$q.= "AND Sessions.SessionID = '" . mysql_real_escape_string($sid) . "'";
+	$result = db_query($q, $dbh);
+	if (!$result) {
+		return "";
+	}
+	$row = mysql_fetch_row($result);
+
+	return $row[0];
+}
+
+# obtain the account type if given their current SID
+# Return either "", "User", "Trusted User", "Developer"
+#
+function account_from_sid($sid="") {
+	if (!$sid) {
+		return "";
+	}
+	$dbh = db_connect();
+	$q = "SELECT AccountType ";
+	$q.= "FROM Users, AccountTypes, Sessions ";
+	$q.= "WHERE Users.ID = Sessions.UsersID ";
+	$q.= "AND AccountTypes.ID = Users.AccountTypeID ";
+	$q.= "AND Sessions.SessionID = '" . mysql_real_escape_string($sid) . "'";
+	$result = db_query($q, $dbh);
+	if (!$result) {
+		return "";
+	}
+	$row = mysql_fetch_row($result);
+
+	return $row[0];
+}
+
+# obtain the Users.ID if given their current SID
+#
+function uid_from_sid($sid="") {
+	if (!$sid) {
+		return "";
+	}
+	$dbh = db_connect();
+	$q = "SELECT Users.ID ";
+	$q.= "FROM Users, Sessions ";
+	$q.= "WHERE Users.ID = Sessions.UsersID ";
+	$q.= "AND Sessions.SessionID = '" . mysql_real_escape_string($sid) . "'";
+	$result = db_query($q, $dbh);
+	if (!$result) {
+		return 0;
+	}
+	$row = mysql_fetch_row($result);
+
+	return $row[0];
+}
+
+# connect to the database
+#
+function db_connect() {
+	$handle = mysql_connect(AUR_db_host, AUR_db_user, AUR_db_pass);
+	if (!$handle) {
+		die("Error connecting to AUR database: " . mysql_error());
+	}
+
+	mysql_select_db(AUR_db_name, $handle) or
+		die("Error selecting AUR database: " . mysql_error());
+
+	db_query("SET NAMES 'utf8' COLLATE 'utf8_general_ci';", $handle);
+
+	return $handle;
+}
+
+# disconnect from the database
+# this won't normally be needed as PHP/reference counting will take care of
+# closing the connection once it is no longer referenced
+#
+function db_disconnect($db_handle="") {
+	if ($db_handle) {
+		mysql_close($db_handle);
+		return TRUE;
+	}
+	return FALSE;
+}
+
+# wrapper function around db_query in case we want to put
+# query logging/debugging in.
+#
+function db_query($query="", $db_handle="") {
+	if (!$query) {
+		return FALSE;
+	}
+
+	if (!$db_handle) {
+		die("DB handle was not provided to db_query");
+	}
+
+	if (SQL_DEBUG == 1) {
+		$bt = debug_backtrace();
+		error_log("DEBUG: ".$bt[0]['file'].":".$bt[0]['line']." query: $query\n");
+	}
+
+	$result = @mysql_query($query, $db_handle);
+	if (!$result) {
+		$bt = debug_backtrace();
+		error_log("ERROR: near ".$bt[0]['file'].":".$bt[0]['line']." in query: $query\n -> ".mysql_error($db_handle));
+	}
+
+	return $result;
+}
+
+# Set a value in the cache (currently APC) if cache is available for use. If
+# not available, this becomes effectively a no-op (return value is
+# false). Accepts an optional TTL (defaults to 600 seconds).
+function set_cache_value($key, $value, $ttl=600) {
+	$status = false;
+	if (EXTENSION_LOADED_APC) {
+		$status = apc_store(APC_PREFIX.$key, $value, $ttl);
+	}
+	return $status;
+}
+
+# Get a value from the cache (currently APC) if cache is available for use. If
+# not available, this returns false (optionally sets passed in variable $status
+# to false, much like apc_fetch() behaves). This allows for testing the fetch
+# result appropriately even in the event that a 'false' value was the value in
+# the cache.
+function get_cache_value($key, &$status=false) {
+	if(EXTENSION_LOADED_APC) {
+		$ret = apc_fetch(APC_PREFIX.$key, $status);
+		if ($status) {
+			return $ret;
+		}
+	}
+	return $status;
+}
+
+# Run a simple db query, retrieving and/or caching the value if APC is
+# available for use. Accepts an optional TTL value (defaults to 600 seconds).
+function db_cache_value($dbq, $dbh, $key, $ttl=600) {
+	$status = false;
+	$value = get_cache_value($key, $status);
+	if (!$status) {
+		$result = db_query($dbq, $dbh);
+		$row = mysql_fetch_row($result);
+		$value = $row[0];
+		set_cache_value($key, $value, $ttl);
+	}
+	return $value;
+}
+
+# set up the visitor's language
+#
+function set_lang() {
+	global $LANG;
+	global $SUPPORTED_LANGS;
+	global $PERSISTENT_COOKIE_TIMEOUT;
+	global $streamer, $l10n;
+
+	$update_cookie = 0;
+	if (isset($_REQUEST['setlang'])) {
+		# visitor is requesting a language change
+		#
+		$LANG = $_REQUEST['setlang'];
+		$update_cookie = 1;
+
+	} elseif (isset($_COOKIE['AURLANG'])) {
+		# If a cookie is set, use that
+		#
+		$LANG = $_COOKIE['AURLANG'];
+
+	} elseif (isset($_COOKIE["AURSID"])) {
+		# No language but a session; use default lang preference
+		#
+		$dbh = db_connect();
+		$q = "SELECT LangPreference FROM Users, Sessions ";
+		$q.= "WHERE Users.ID = Sessions.UsersID ";
+		$q.= "AND Sessions.SessionID = '";
+		$q.= mysql_real_escape_string($_COOKIE["AURSID"])."'";
+		$result = db_query($q, $dbh);
+
+		if ($result) {
+			$row = mysql_fetch_array($result);
+			$LANG = $row[0];
+		}
+		$update_cookie = 1;
+	}
+
+	# Set $LANG to default if nothing is valid.
+	if (!array_key_exists($LANG, $SUPPORTED_LANGS)) {
+		$LANG = DEFAULT_LANG;
+	}
+
+	if ($update_cookie) {
+		$cookie_time = time() + $PERSISTENT_COOKIE_TIMEOUT;
+		setcookie("AURLANG", $LANG, $cookie_time, "/");
+	}
+
+	$streamer = new FileReader('../locale/' . $LANG .
+		'/LC_MESSAGES/aur.mo');
+	$l10n = new gettext_reader($streamer, true);
+
+	return;
+}
+
+
+# common header
+#
+function html_header($title="") {
+	global $_SERVER;
+	global $_COOKIE;
+	global $_POST;
+	global $LANG;
+	global $SUPPORTED_LANGS;
+
+	$login = try_login();
+	$login_error = $login['error'];
+
+	$title = htmlspecialchars($title, ENT_QUOTES);
+
+	include('header.php');
+	return;
+}
+
+
+# common footer
+#
+function html_footer($ver="") {
+	include('footer.php');
+	return;
+}
+
+# check to see if the user can submit a package
+#
+function can_submit_pkg($name="", $sid="") {
+	if (!$name || !$sid) {return 0;}
+	$dbh = db_connect();
+	$q = "SELECT MaintainerUID ";
+	$q.= "FROM Packages WHERE Name = '".mysql_real_escape_string($name)."'";
+	$result = db_query($q, $dbh);
+	if (mysql_num_rows($result) == 0) {return 1;}
+	$row = mysql_fetch_row($result);
+	$my_uid = uid_from_sid($sid);
+
+	if ($row[0] === NULL || $row[0] == $my_uid) {
+		return 1;
+	}
+
+	return 0;
+}
+
+# recursive delete directory
+#
+function rm_tree($dirname) {
+	if (empty($dirname) || !is_dir($dirname)) return;
+
+	foreach (scandir($dirname) as $item) {
+		if ($item != '.' && $item != '..') {
+			$path = $dirname . '/' . $item;
+			if (is_file($path) || is_link($path)) {
+				unlink($path);
+			}
+			else {
+				rm_tree($path);
+			}
+		}
+	}
+
+	rmdir($dirname);
+
+	return;
+}
+
+# Recursive chmod to set group write permissions
+#
+function chmod_group($path) {
+	if (!is_dir($path))
+		return chmod($path, 0664);
+
+	$d = dir($path);
+	while ($f = $d->read()) {
+		if ($f != '.' && $f != '..') {
+			$fullpath = $path.'/'.$f;
+			if (is_link($fullpath))
+				continue;
+			elseif (!is_dir($fullpath)) {
+				if (!chmod($fullpath, 0664))
+					return FALSE;
+			}
+			elseif(!chmod_group($fullpath))
+				return FALSE;
+		}
+	}
+	$d->close();
+
+	if(chmod($path, 0775))
+		return TRUE;
+	else
+		return FALSE;
+}
+
+# obtain the uid given a Users.Username
+#
+function uid_from_username($username="")
+{
+	if (!$username) {
+		return "";
+	}
+	$dbh = db_connect();
+	$q = "SELECT ID FROM Users WHERE Username = '".mysql_real_escape_string($username)
+				."'";
+	$result = db_query($q, $dbh);
+	if (!$result) {
+		return "None";
+	}
+	$row = mysql_fetch_row($result);
+
+	return $row[0];
+}
+
+# obtain the uid given a Users.Email
+#
+function uid_from_email($email="")
+{
+	if (!$email) {
+		return "";
+	}
+	$dbh = db_connect();
+	$q = "SELECT ID FROM Users WHERE Email = '".mysql_real_escape_string($email)
+				."'";
+	$result = db_query($q, $dbh);
+	if (!$result) {
+		return "None";
+	}
+	$row = mysql_fetch_row($result);
+
+	return $row[0];
+}
+
+# check user privileges
+#
+function check_user_privileges()
+{
+	$type = account_from_sid($_COOKIE['AURSID']);
+	return ($type == 'Trusted User' || $type == 'Developer');
+}
+
+/**
+ * Generate clean url with edited/added user values
+ *
+ * Makes a clean string of variables for use in URLs based on current $_GET and
+ * list of values to edit/add to that. Any empty variables are discarded.
+ *
+ * ex. print "http://example.com/test.php?" . mkurl("foo=bar&bar=baz")
+ *
+ * @param string $append string of variables and values formatted as in URLs
+ * ex. mkurl("foo=bar&bar=baz")
+ * @return string clean string of variables to append to URL, urlencoded
+ */
+function mkurl($append) {
+	$get = $_GET;
+	$append = explode('&', $append);
+	$uservars = array();
+	$out = '';
+
+	foreach ($append as $i) {
+		$ex = explode('=', $i);
+		$uservars[$ex[0]] = $ex[1];
+	}
+
+	foreach ($uservars as $k => $v) { $get[$k] = $v; }
+
+	foreach ($get as $k => $v) {
+		if ($v !== '') {
+			$out .= '&amp;' . urlencode($k) . '=' . urlencode($v);
+		}
+	}
+
+	return substr($out, 5);
+}
+
+function get_salt($user_id)
+{
+	$dbh = db_connect();
+	$salt_q = "SELECT Salt FROM Users WHERE ID = " . $user_id;
+	$result = db_query($salt_q, $dbh);
+	if ($result) {
+		$salt_row = mysql_fetch_row($result);
+		return $salt_row[0];
+	}
+	return;
+}
+
+function save_salt($user_id, $passwd)
+{
+	$dbh = db_connect();
+	$salt = generate_salt();
+	$hash = salted_hash($passwd, $salt);
+	$salting_q = "UPDATE Users SET Salt = '" . $salt . "', " .
+		"Passwd = '" . $hash . "' WHERE ID = " . $user_id;
+	return db_query($salting_q, $dbh);
+}
+
+function generate_salt()
+{
+	return md5(uniqid(mt_rand(), true));
+}
+
+function salted_hash($passwd, $salt)
+{
+	if (strlen($salt) != 32) {
+		trigger_error('Salt does not look like an md5 hash', E_USER_WARNING);
+	}
+	return md5($salt . $passwd);
+}
+
+function parse_comment($comment)
+{
+	$url_pattern = '/(\b(?:https?|ftp):\/\/[\w\/\#~:.?+=&%@!\-;,]+?' .
+		'(?=[.:?\-;,]*(?:[^\w\/\#~:.?+=&%@!\-;,]|$)))/iS';
+
+	$matches = preg_split($url_pattern, $comment, -1,
+		PREG_SPLIT_DELIM_CAPTURE);
+
+	$html = '';
+	for ($i = 0; $i < count($matches); $i++) {
+		if ($i % 2) {
+			# convert links
+			$html .= '<a href="' . htmlspecialchars($matches[$i]) .
+				'">' .	htmlspecialchars($matches[$i]) . '</a>';
+		}
+		else {
+			# convert everything else
+			$html .= nl2br(htmlspecialchars($matches[$i]));
+		}
+	}
+
+	return $html;
+}