From e3449aa1aa388cfa45d92210c06b74fc7b7397e7 Mon Sep 17 00:00:00 2001 From: Andrew Dolgov Date: Thu, 23 Aug 2012 13:03:39 +0400 Subject: [PATCH] add experimental self-updating script --- include/functions.php | 14 ++++ update.php | 171 +++++++++++++++++++++++++++++++++++++++++- 2 files changed, 184 insertions(+), 1 deletion(-) diff --git a/include/functions.php b/include/functions.php index 957146f1..69b481ac 100644 --- a/include/functions.php +++ b/include/functions.php @@ -5506,4 +5506,18 @@ return null; } + + function tmpdirname($path, $prefix) { + // Use PHP's tmpfile function to create a temporary + // directory name. Delete the file and keep the name. + $tempname = tempnam($path,$prefix); + if (!$tempname) + return false; + + if (!unlink($tempname)) + return false; + + return $tempname; + } + ?> diff --git a/update.php b/update.php index 292b5c1b..f23244d8 100755 --- a/update.php +++ b/update.php @@ -28,6 +28,7 @@ print " -cleanup-tags - perform tags table maintenance\n"; print " -get-feeds - receive popular feeds from linked instances\n"; print " -import USER FILE - import articles from XML\n"; + print " -update-self - update tt-rss installation to latest version\n"; print " -quiet - don't show messages\n"; print " -indexes - recreate missing schema indexes\n"; print " -help - show this help\n"; @@ -205,11 +206,179 @@ _debug("all done."); } + if (in_array("-update-self", $op)) { + _debug("Warning: self-updating is experimental. Use at your own risk."); + _debug("Please backup your tt-rss directory before continuing. Your database will not be modified."); + _debug("Type 'yes' to continue."); + + if (read_stdin() != 'yes') + exit; + + $work_dir = dirname(__FILE__); + $parent_dir = dirname($work_dir); + + if (!is_writable($work_dir) && !is_writable("$parent_dir")) { + _debug("Both current and parent directories should be writable as current user."); + exit; + } + + if (!is_writable(sys_get_temp_dir())) { + _debug("System temporary directory should be writable as current user."); + exit; + } + + _debug("Checking for tar..."); + + $system_rc = 0; + system("tar --version >/dev/null", $system_rc); + + if ($system_rc != 0) { + _debug("Could not run tar executable (RC=$system_rc)."); + exit; + } + + _debug("Checking for latest version..."); + + $version_info = json_decode(fetch_file_contents("http://tt-rss.org/version.php"), + true); + + if (!is_array($version_info)) { + _debug("Unable to fetch version information."); + exit; + } + + $target_version = $version_info["version"]; + $target_dir = "$parent_dir/tt-rss-$target_version"; + + _debug("Target version: $target_version"); + + if (version_compare(VERSION, $target_version) != -1 && !in_array("-force", $op)) { + _debug("You are on latest version. Update not needed."); + exit; + } + if (file_exists($target_dir)) { + _debug("Target directory $target_dir already exists."); + exit; + } + + _debug("Downloading checksums..."); + $md5sum_data = fetch_file_contents("http://tt-rss.org/download/md5sum.txt"); + + if (!$md5sum_data) { + _debug("Could not download checksums."); + exit; + } + + $md5sum_data = explode("\n", $md5sum_data); + + $tarball_url = "http://tt-rss.org/download/tt-rss-$target_version.tar.gz"; + $data = fetch_file_contents($tarball_url); + + if (!$data) { + _debug("Could not download distribution tarball ($tarball_url)."); + exit; + } + + _debug("Verifying tarball checksum..."); + + $target_md5sum = false; + + foreach ($md5sum_data as $line) { + $pair = explode(" ", $line); + + if ($pair[1] == "tt-rss-$target_version.tar.gz") { + $target_md5sum = $pair[0]; + break; + } + } + + if (!$target_md5sum) { + _debug("Unable to locate checksum for target version."); + exit; + } + + $test_md5sum = md5($data); + + if ($test_md5sum != $target_md5sum) { + _debug("Downloaded checksum doesn't match (got $test_md5sum, expected $target_md5sum)."); + exit; + } + + $tmp_file = tempnam(sys_get_temp_dir(), 'tt-rss'); + _debug("Saving download to $tmp_file"); + + if (!file_put_contents($tmp_file, $data)) { + _debug("Unable to save download."); + exit; + } + + if (!chdir($parent_dir)) { + _debug("Unable to change into parent directory."); + exit; + } + + $old_dir = tmpdirname($parent_dir, "tt-rss-old"); + + _debug("Renaming current directory to ".basename($old_dir)); + if (!rename($work_dir, $old_dir)) { + _debug("Unable to rename current directory."); + exit; + } + + _debug("Extracting tarball..."); + system("tar zxf $tmp_file", $system_rc); + + if ($system_rc != 0) { + _debug("Error while extracting tarball (RC=$system_rc)."); + exit; + } + + _debug("Renaming target directory..."); + if (!rename($target_dir, $work_dir)) { + _debug("Unable to rename target directory."); + exit; + } + + chdir($work_dir); + + _debug("Copying config.php..."); + if (!copy("$old_dir/config.php", "$work_dir/config.php")) { + _debug("Unable to copy config.php to $work_dir."); + exit; + } + + _debug("Cleaning up..."); + unlink($tmp_file); + + _debug("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) { + _debug("-> $dir"); + chmod($dir, 0777); + } + + _debug("Upgrade completed."); + _debug("Your old tt-rss directory is saved at $old_dir. ". + "Please migrate locally modified files (if any) and remove it."); + _debug("You might need to re-enter current directory in shell to see new files."); + } + db_close($link); if ($lock_handle != false) { fclose($lock_handle); } - unlink(LOCK_DIRECTORY . "/$lock_filename"); + if (file_exists(LOCK_DIRECTORY . "/$lock_filename")) + unlink(LOCK_DIRECTORY . "/$lock_filename"); ?> -- 2.39.5