plugins/updater/updater.php

   1 <?php
   2 class Updater extends Plugin {
   3
   4         private $link;
   5         private $host;
   6
   7         function __construct($host) {
   8                 $this->link = $host->get_link();
   9                 $this->host = $host;
  10
  11                 $host->add_hook($host::HOOK_PREFS_TAB, $this);
  12
  13                 $host->add_command("update-self",
  14                         "update tt-rss installation to latest version",
  15                         $this);
  16         }
  17
  18         function update_self_step($link, $step, $params, $force = false) {
  19                 // __FILE__ is in plugins/updater so we need to go one level up
  20                 $work_dir = dirname(dirname(dirname(__FILE__)));
  21                 $parent_dir = dirname($work_dir);
  22
  23                 if (!chdir($work_dir)) {
  24                         array_push($log, "Unable to change to work directory: $work_dir");
  25                         $stop = true; break;
  26                 }
  27
  28                 $stop = false;
  29                 $log = array();
  30                 if (!is_array($params)) $params = array();
  31
  32                 switch ($step) {
  33                 case 0:
  34                         array_push($log, "Work directory: $work_dir");
  35
  36                         if (!is_writable($work_dir) && !is_writable("$parent_dir")) {
  37                                 $user = posix_getpwuid(posix_geteuid());
  38                                 $user = $user["name"];
  39                                 array_push($log, "Both tt-rss and parent directories should be writable as current user ($user).");
  40                                 $stop = true; break;
  41                         }
  42
  43                         if (!file_exists("$work_dir/config.php") || !file_exists("$work_dir/include/sanity_check.php")) {
  44                                 array_push($log, "Work directory $work_dir doesn't look like tt-rss installation.");
  45                                 $stop = true; break;
  46                         }
  47
  48                         if (!is_writable(sys_get_temp_dir())) {
  49                                 array_push($log, "System temporary directory should be writable as current user.");
  50                                 $stop = true; break;
  51                         }
  52
  53                         array_push($log, "Checking for tar...");
  54
  55                         $system_rc = 0;
  56                         system("tar --version >/dev/null", $system_rc);
  57
  58                         if ($system_rc != 0) {
  59                                 array_push($log, "Could not run tar executable (RC=$system_rc).");
  60                                 $stop = true; break;
  61                         }
  62
  63                         array_push($log, "Checking for latest version...");
  64
  65                         $version_info = json_decode(fetch_file_contents("http://tt-rss.org/version.php"),
  66                                 true);
  67
  68                         if (!is_array($version_info)) {
  69                                 array_push($log, "Unable to fetch version information.");
  70                                 $stop = true; break;
  71                         }
  72
  73                         $target_version = $version_info["version"];
  74                         $target_dir = "$parent_dir/tt-rss-$target_version";
  75
  76                         array_push($log, "Target version: $target_version");
  77                         $params["target_version"] = $target_version;
  78
  79                         if (version_compare(VERSION, $target_version) != -1 && !$force) {
  80                                 array_push($log, "Your Tiny Tiny RSS installation is up to date.");
  81                                 $stop = true; break;
  82                         }
  83
  84                         if (file_exists($target_dir)) {
  85                                 array_push($log, "Target directory $target_dir already exists.");
  86                                 $stop = true; break;
  87                         }
  88
  89                         break;
  90                 case 1:
  91                         $target_version = $params["target_version"];
  92
  93                         array_push($log, "Downloading checksums...");
  94                         $md5sum_data = fetch_file_contents("http://tt-rss.org/download/md5sum.txt");
  95
  96                         if (!$md5sum_data) {
  97                                 array_push($log, "Could not download checksums.");
  98                                 $stop = true; break;
  99                         }
 100
 101                         $md5sum_data = explode("\n", $md5sum_data);
 102
 103                         foreach ($md5sum_data as $line) {
 104                                 $pair = explode("  ", $line);
 105
 106                                 if ($pair[1] == "tt-rss-$target_version.tar.gz") {
 107                                         $target_md5sum = $pair[0];
 108                                         break;
 109                                 }
 110                         }
 111
 112                         if (!$target_md5sum) {
 113                                 array_push($log, "Unable to locate checksum for target version.");
 114                                 $stop = true; break;
 115                         }
 116
 117                         $params["target_md5sum"] = $target_md5sum;
 118
 119                         break;
 120                 case 2:
 121                         $target_version = $params["target_version"];
 122                         $target_md5sum = $params["target_md5sum"];
 123
 124                         array_push($log, "Downloading distribution tarball...");
 125
 126                         $tarball_url = "http://tt-rss.org/download/tt-rss-$target_version.tar.gz";
 127                         $data = fetch_file_contents($tarball_url);
 128
 129                         if (!$data) {
 130                                 array_push($log, "Could not download distribution tarball ($tarball_url).");
 131                                 $stop = true; break;
 132                         }
 133
 134                         array_push($log, "Verifying tarball checksum...");
 135
 136                         $test_md5sum = md5($data);
 137
 138                         if ($test_md5sum != $target_md5sum) {
 139                                 array_push($log, "Downloaded checksum doesn't match (got $test_md5sum, expected $target_md5sum).");
 140                                 $stop = true; break;
 141                         }
 142
 143                         $tmp_file = tempnam(sys_get_temp_dir(), 'tt-rss');
 144                         array_push($log, "Saving download to $tmp_file");
 145
 146                         if (!file_put_contents($tmp_file, $data)) {
 147                                 array_push($log, "Unable to save download.");
 148                                 $stop = true; break;
 149                         }
 150
 151                         $params["tmp_file"] = $tmp_file;
 152
 153                         break;
 154                 case 3:
 155                         $tmp_file = $params["tmp_file"];
 156                         $target_version = $params["target_version"];
 157
 158                         if (!chdir($parent_dir)) {
 159                                 array_push($log, "Unable to change into parent directory.");
 160                                 $stop = true; break;
 161                         }
 162
 163                         $old_dir = tmpdirname($parent_dir, "tt-rss-old");
 164
 165                         array_push($log, "Renaming tt-rss directory to ".basename($old_dir));
 166                         if (!rename($work_dir, $old_dir)) {
 167                                 array_push($log, "Unable to rename tt-rss directory.");
 168                                 $stop = true; break;
 169                         }
 170
 171                         array_push($log, "Extracting tarball...");
 172                         system("tar zxf $tmp_file", $system_rc);
 173
 174                         if ($system_rc != 0) {
 175                                 array_push($log, "Error while extracting tarball (RC=$system_rc).");
 176                                 $stop = true; break;
 177                         }
 178
 179                         $target_dir = "$parent_dir/tt-rss-$target_version";
 180
 181                         array_push($log, "Renaming target directory...");
 182                         if (!rename($target_dir, $work_dir)) {
 183                                 array_push($log, "Unable to rename target directory.");
 184                                 $stop = true; break;
 185                         }
 186
 187                         if (!chdir($work_dir)) {
 188                                 array_push($log, "Unable to change to work directory: $work_dir");
 189                                 $stop = true; break;
 190                         }
 191
 192                         array_push($log, "Copying config.php...");
 193                         if (!copy("$old_dir/config.php", "$work_dir/config.php")) {
 194                                 array_push($log, "Unable to copy config.php to $work_dir.");
 195                                 $stop = true; break;
 196                         }
 197
 198                         array_push($log, "Cleaning up...");
 199                         unlink($tmp_file);
 200
 201                         array_push($log, "Fixing permissions...");
 202
 203                         $directories = array(
 204                                 CACHE_DIR,
 205                                 CACHE_DIR . "/export",
 206                                 CACHE_DIR . "/images",
 207                                 CACHE_DIR . "/simplepie",
 208                                 ICONS_DIR,
 209                                 LOCK_DIRECTORY);
 210
 211                         foreach ($directories as $dir) {
 212                                 array_push($log, "-> $dir");
 213                                 chmod($dir, 0777);
 214                         }
 215
 216                         array_push($log, "Upgrade completed.");
 217                         array_push($log, "Your old tt-rss directory is saved at $old_dir. ".
 218                                 "Please migrate locally modified files (if any) and remove it.");
 219                         array_push($log, "You might need to re-enter current directory in shell to see new files.");
 220
 221                         $stop = true;
 222                         break;
 223                 default:
 224                         $stop = true;
 225                 }
 226
 227                 return array("step" => $step, "stop" => $stop, "params" => $params, "log" => $log);
 228         }
 229
 230         function update_self_cli($link, $force = false) {
 231                 $step = 0;
 232                 $stop = false;
 233                 $params = array();
 234
 235                 while (!$stop) {
 236                         $rc = $this->update_self_step($link, $step, $params, $force);
 237
 238                         $params = $rc['params'];
 239                         $stop = $rc['stop'];
 240
 241                         foreach ($rc['log'] as $line) {
 242                                 _debug($line);
 243                         }
 244                         ++$step;
 245                 }
 246         }
 247
 248         function update_self($args) {
 249                 _debug("Warning: self-updating is experimental. Use at your own risk.");
 250                 _debug("Please backup your tt-rss directory before continuing. Your database will not be modified.");
 251                 _debug("Type 'yes' to continue.");
 252
 253                 if (read_stdin() != 'yes')
 254                         exit;
 255
 256                 $this->update_self_cli($link, in_array("-force", $args));
 257         }
 258
 259         function get_prefs_js() {
 260                 return file_get_contents(dirname(__FILE__) . "/updater.js");
 261         }
 262
 263         function hook_prefs_tab($args) {
 264                 if ($args != "prefPrefs") return;
 265
 266                 if (($_SESSION["access_level"] >= 10 || SINGLE_USER_MODE) && CHECK_FOR_NEW_VERSION) {
 267                         print "<div dojoType=\"dijit.layout.AccordionPane\" title=\"".__('Update Tiny Tiny RSS')."\">";
 268
 269                         if ($_SESSION["pref_last_version_check"] + 86400 + rand(-1000, 1000) < time()) {
 270                                 $_SESSION["version_data"] = @check_for_update($this->link);
 271                                 $_SESSION["pref_last_version_check"] = time();
 272                         }
 273
 274                         if (is_array($_SESSION["version_data"])) {
 275                                 $version = $_SESSION["version_data"]["version"];
 276                                 print_notice(T_sprintf("New version of Tiny Tiny RSS is available (%s).", "<b>$version</b>"));
 277
 278                                 print "<p><button dojoType=\"dijit.form.Button\" onclick=\"return updateSelf()\">".
 279                                         __('Update Tiny Tiny RSS')."</button></p>";
 280
 281                         } else {
 282                                 print_notice(__("Your Tiny Tiny RSS installation is up to date."));
 283                         }
 284
 285                         print "</div>"; #pane
 286                 }
 287
 288         function updateSelf() {
 289                 print "<form style='display : block' name='self_update_form' id='self_update_form'>";
 290
 291                 print "<div class='error'>".__("Do not close this dialog until updating is finished. Backup your tt-rss directory before continuing.")."</div>";
 292
 293                 print "<ul class='selfUpdateList' id='self_update_log'>";
 294                 print "<li>" . __("Ready to update.") . "</li>";
 295                 print "</ul>";
 296
 297                 print "<div class='dlgButtons'>";
 298                 print "<button id=\"self_update_start_btn\" dojoType=\"dijit.form.Button\" onclick=\"return dijit.byId('updateSelfDlg').start()\" >".
 299                         __("Start update")."</button>";
 300                 print "<button id=\"self_update_stop_btn\" onclick=\"return dijit.byId('updateSelfDlg').close()\" dojoType=\"dijit.form.Button\">".
 301                         __("Close this window")."</button>";
 302                 print "</div>";
 303                 print "</form>";
 304         }
 305
 306         function performUpdate() {
 307                 $step = (int) $_REQUEST["step"];
 308                 $params = json_decode($_REQUEST["params"], true);
 309                 $force = (bool) $_REQUEST["force"];
 310
 311                 if (($_SESSION["access_level"] >= 10 || SINGLE_USER_MODE) && CHECK_FOR_NEW_VERSION) {
 312                         print   json_encode($this->update_self_step($this->link, $step, $params, $force));
 313                 }
 314         }
 315
 316
 317         }
 318 }
 319 ?>