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<?php
function update_self_step($link, $step, $params, $force = false) {
// __FILE__ is in include/ so we need to go one level up
$work_dir = dirname(dirname(__FILE__));
$parent_dir = dirname($work_dir);
if (!chdir($work_dir)) {
array_push($log, "Unable to change to work directory: $work_dir");
$stop = true; break;
}
$stop = false;
$log = array();
if (!is_array($params)) $params = array();
switch ($step) {
case 0:
array_push($log, "Work directory: $work_dir");
if (!is_writable($work_dir) && !is_writable("$parent_dir")) {
$user = posix_getpwuid(posix_geteuid());
$user = $user["name"];
array_push($log, "Both tt-rss and parent directories should be writable as current user ($user).");
$stop = true; break;
}
if (!file_exists("$work_dir/config.php") || !file_exists("$work_dir/include/sanity_check.php")) {
array_push($log, "Work directory $work_dir doesn't look like tt-rss installation.");
$stop = true; break;
}
if (!is_writable(sys_get_temp_dir())) {
array_push($log, "System temporary directory should be writable as current user.");
$stop = true; break;
}
array_push($log, "Checking for tar...");
$system_rc = 0;
system("tar --version >/dev/null", $system_rc);
if ($system_rc != 0) {
array_push($log, "Could not run tar executable (RC=$system_rc).");
$stop = true; break;
}
array_push($log, "Checking for latest version...");
$version_info = json_decode(fetch_file_contents("http://tt-rss.org/version.php"),
true);
if (!is_array($version_info)) {
array_push($log, "Unable to fetch version information.");
$stop = true; break;
}
$target_version = $version_info["version"];
$target_dir = "$parent_dir/tt-rss-$target_version";
array_push($log, "Target version: $target_version");
$params["target_version"] = $target_version;
if (version_compare(VERSION, $target_version) != -1 && !$force) {
array_push($log, "Your Tiny Tiny RSS installation is up to date.");
$stop = true; break;
}
if (file_exists($target_dir)) {
array_push($log, "Target directory $target_dir already exists.");
$stop = true; break;
}
break;
case 1:
$target_version = $params["target_version"];
array_push($log, "Downloading checksums...");
$md5sum_data = fetch_file_contents("http://tt-rss.org/download/md5sum.txt");
if (!$md5sum_data) {
array_push($log, "Could not download checksums.");
$stop = true; break;
}
$md5sum_data = explode("\n", $md5sum_data);
foreach ($md5sum_data as $line) {
$pair = explode(" ", $line);
if ($pair[1] == "tt-rss-$target_version.tar.gz") {
$target_md5sum = $pair[0];
break;
}
}
if (!$target_md5sum) {
array_push($log, "Unable to locate checksum for target version.");
$stop = true; break;
}
$params["target_md5sum"] = $target_md5sum;
break;
case 2:
$target_version = $params["target_version"];
$target_md5sum = $params["target_md5sum"];
array_push($log, "Downloading distribution tarball...");
$tarball_url = "http://tt-rss.org/download/tt-rss-$target_version.tar.gz";
$data = fetch_file_contents($tarball_url);
if (!$data) {
array_push($log, "Could not download distribution tarball ($tarball_url).");
$stop = true; break;
}
array_push($log, "Verifying tarball checksum...");
$test_md5sum = md5($data);
if ($test_md5sum != $target_md5sum) {
array_push($log, "Downloaded checksum doesn't match (got $test_md5sum, expected $target_md5sum).");
$stop = true; break;
}
$tmp_file = tempnam(sys_get_temp_dir(), 'tt-rss');
array_push($log, "Saving download to $tmp_file");
if (!file_put_contents($tmp_file, $data)) {
array_push($log, "Unable to save download.");
$stop = true; break;
}
$params["tmp_file"] = $tmp_file;
break;
case 3:
$tmp_file = $params["tmp_file"];
$target_version = $params["target_version"];
if (!chdir($parent_dir)) {
array_push($log, "Unable to change into parent directory.");
$stop = true; break;
}
$old_dir = tmpdirname($parent_dir, "tt-rss-old");
array_push($log, "Renaming tt-rss directory to ".basename($old_dir));
if (!rename($work_dir, $old_dir)) {
array_push($log, "Unable to rename tt-rss directory.");
$stop = true; break;
}
array_push($log, "Extracting tarball...");
system("tar zxf $tmp_file", $system_rc);
if ($system_rc != 0) {
array_push($log, "Error while extracting tarball (RC=$system_rc).");
$stop = true; break;
}
$target_dir = "$parent_dir/tt-rss-$target_version";
array_push($log, "Renaming target directory...");
if (!rename($target_dir, $work_dir)) {
array_push($log, "Unable to rename target directory.");
$stop = true; break;
}
if (!chdir($work_dir)) {
array_push($log, "Unable to change to work directory: $work_dir");
$stop = true; break;
}
array_push($log, "Copying config.php...");
if (!copy("$old_dir/config.php", "$work_dir/config.php")) {
array_push($log, "Unable to copy config.php to $work_dir.");
$stop = true; break;
}
array_push($log, "Cleaning up...");
unlink($tmp_file);
array_push($log, "Fixing permissions...");
$directories = array(
CACHE_DIR,
CACHE_DIR . "/htmlpurifier",
CACHE_DIR . "/export",
CACHE_DIR . "/images",
CACHE_DIR . "/magpie",
CACHE_DIR . "/simplepie",
ICONS_DIR,
LOCK_DIRECTORY);
foreach ($directories as $dir) {
array_push($log, "-> $dir");
chmod($dir, 0777);
}
array_push($log, "Upgrade completed.");
array_push($log, "Your old tt-rss directory is saved at $old_dir. ".
"Please migrate locally modified files (if any) and remove it.");
array_push($log, "You might need to re-enter current directory in shell to see new files.");
$stop = true;
break;
default:
$stop = true;
}
return array("step" => $step, "stop" => $stop, "params" => $params, "log" => $log);
}
function update_self($link, $force = false) {
$step = 0;
$stop = false;
$params = array();
while (!$stop) {
$rc = update_self_step($link, $step, $params, $force);
$params = $rc['params'];
$stop = $rc['stop'];
foreach ($rc['log'] as $line) {
_debug($line);
}
++$step;
}
}
?>
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