web/Obj/sac-a-push.phh

   1 <?php
   2 /*
   3  *  brisk - Obj/sac-a-push.phh
   4  *
   5  *  Copyright (C) 2012-2014 Matteo Nastasi
   6  *                          mailto: nastasi@alternativeoutput.it
   7  *                                  matteo.nastasi@milug.org
   8  *                          web: http://www.alternativeoutput.it
   9  *
  10  * This program is free software; you can redistribute it and/or modify
  11  * it under the terms of the GNU General Public License as published by
  12  * the Free Software Foundation; either version 2 of the License, or
  13  * (at your option) any later version.
  14  *
  15  * This program is distributed in the hope that it will be useful, but
  16  * WITHOUT ANY WARRANTY; without even the implied warranty of
  17  * MERCHANTABLILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
  18  * General Public License for more details. You should have received a
  19  * copy of the GNU General Public License along with this program; if
  20  * not, write to the Free Software Foundation, Inc, 59 Temple Place -
  21  * Suite 330, Boston, MA 02111-1307, USA.
  22  *
  23  */
  24
  25 define('SITE_PREFIX', '/brisk/');
  26 define('SITE_PREFIX_LEN', 7);
  27
  28 define('DIRECT_ST_READ',  1);
  29 define('DIRECT_ST_WRITE', 2);
  30
  31 declare(ticks = 1);
  32
  33 /* this list is created with bin/get_globals.sh */
  34 $_globals_list = array(
  35 'G_admin_mail', 'G_alarm_passwd', 'G_all_points', 'G_ban_list', 'G_base',
  36 'G_black_list', 'G_brisk_version', 'G_btrace_pref_sub', 'G_cloud_smasher',
  37 'G_crypt_key', 'G_dbasetype', 'G_dbauth', 'G_dbpfx', 'G_doc_path',
  38 'G_domain', 'G_donors_all', 'G_donors_cur', 'G_is_local', 'G_lang', 'G_lng',
  39 'G_mail_seed', 'G_notguar_code', 'G_PG_cons', 'G_PG_cons_n', 'G_PG_vow',
  40 'G_PG_vow_n', 'G_poll_entries', 'G_poll_name', 'G_poll_title',
  41 'G_provider_proxy', 'G_proxy_white_list', 'G_room_about', 'G_room_help',
  42 'G_room_passwdhowto', 'G_room_roadmap', 'G_room_whysupport',
  43 'G_selfreg_mask', 'G_selfreg_tout', 'G_shutdown', 'G_sidebanner',
  44 'G_sidebanner_idx', 'G_splash_content', 'G_splash_contents',
  45 'G_splash_cont_idx', 'G_splash_h', 'G_splash_idx', 'G_splash_interval',
  46 'G_splash_timeout', 'G_splash_w', 'G_topbanner', 'G_tos_dthard',
  47 'G_tos_dtsoft', 'G_tos_fname', 'G_tos_idx', 'G_tos_vers', 'G_webbase');
  48
  49 function global_dump()
  50 {
  51     GLOBAL $G_alarm_passwd, $G_ban_list, $G_black_list, $G_btrace_pref_sub, $G_dbauth;
  52     GLOBAL $G_dbpfx, $G_donors_all, $G_donors_cur, $G_is_local, $G_lang;
  53     GLOBAL $G_poll_entries, $G_poll_name, $G_poll_title, $G_proxy_white_list;
  54     GLOBAL $G_room_roadmap, $G_shutdown;
  55     GLOBAL $G_splash_content, $G_splash_contents, $G_splash_cont_idx;
  56     GLOBAL $G_splash_h, $G_splash_idx, $G_splash_interval, $G_splash_timeout;
  57     GLOBAL $G_splash_w, $G_topbanner, $G_with_donors, $G_with_poll;
  58     GLOBAL $G_with_splash, $G_sidebanner, $G_sidebanner_idx;
  59     GLOBAL $G_with_topbanner, $G_selfreg_tout, $G_selfreg_mask;
  60
  61     fprintf(STDERR, "G_alarm_passwd = [%s]\n", print_r($G_alarm_passwd, TRUE));
  62     fprintf(STDERR, "G_ban_list = [%s]\n", print_r($G_ban_list, TRUE));
  63     fprintf(STDERR, "G_black_list = [%s]\n", print_r($G_black_list, TRUE));
  64     fprintf(STDERR, "G_btrace_pref_sub = [%s]\n", print_r($G_btrace_pref_sub, TRUE));
  65     fprintf(STDERR, "G_dbauth = [%s]\n", print_r($G_dbauth, TRUE));
  66     fprintf(STDERR, "G_dbpfx = [%s]\n", print_r($G_dbpfx, TRUE));
  67     fprintf(STDERR, "G_donors_all = [%s]\n", print_r($G_donors_all, TRUE));
  68     fprintf(STDERR, "G_donors_cur = [%s]\n", print_r($G_donors_cur, TRUE));
  69     fprintf(STDERR, "G_is_local = [%s]\n", print_r($G_is_local, TRUE));
  70     fprintf(STDERR, "G_lang = [%s]\n", print_r($G_lang, TRUE));
  71     fprintf(STDERR, "G_poll_entries = [%s]\n", print_r($G_poll_entries, TRUE));
  72     fprintf(STDERR, "G_poll_name = [%s]\n", print_r($G_poll_name, TRUE));
  73     fprintf(STDERR, "G_poll_title = [%s]\n", print_r($G_poll_title, TRUE));
  74     fprintf(STDERR, "G_proxy_white_list = [%s]\n", print_r($G_proxy_white_list, TRUE));
  75     fprintf(STDERR, "G_room_roadmap = [%s]\n", print_r($G_room_roadmap, TRUE));
  76     fprintf(STDERR, "G_shutdown = [%s]\n", print_r($G_shutdown, TRUE));
  77     fprintf(STDERR, "G_splash_content = [%s]\n", print_r($G_splash_content, TRUE));
  78     fprintf(STDERR, "G_splash_contents = [%s]\n", print_r($G_splash_contents, TRUE));
  79     fprintf(STDERR, "G_splash_cont_idx = [%s]\n", print_r($G_splash_cont_idx, TRUE));
  80     fprintf(STDERR, "G_splash_h = [%s]\n", print_r($G_splash_h, TRUE));
  81     fprintf(STDERR, "G_splash_idx = [%s]\n", print_r($G_splash_idx, TRUE));
  82     fprintf(STDERR, "G_splash_interval = [%s]\n", print_r($G_splash_interval, TRUE));
  83     fprintf(STDERR, "G_splash_timeout = [%s]\n", print_r($G_splash_timeout, TRUE));
  84     fprintf(STDERR, "G_splash_w = [%s]\n", print_r($G_splash_w, TRUE));
  85     fprintf(STDERR, "G_topbanner = [%s]\n", print_r($G_topbanner, TRUE));
  86     fprintf(STDERR, "G_with_donors = [%s]\n", print_r($G_with_donors, TRUE));
  87     fprintf(STDERR, "G_with_poll = [%s]\n", print_r($G_with_poll, TRUE));
  88     fprintf(STDERR, "G_sidebanner = [%s]\n", print_r($G_sidebanner, TRUE));
  89     fprintf(STDERR, "G_sidebanner_idx = [%s]\n", print_r($G_sidebanner_idx, TRUE));
  90     fprintf(STDERR, "G_with_splash = [%s]\n", print_r($G_with_splash, TRUE));
  91     fprintf(STDERR, "G_with_topbanner = [%s]\n", print_r($G_with_topbanner, TRUE));
  92     fprintf(STDERR, "G_selfreg_mask = [%x]\n", print_r($G_selfreg_mask, TRUE));
  93
  94     fprintf(STDERR, "G_selfreg_tout = [%s]\n", print_r($G_selfreg_tout, TRUE));
  95
  96 }
  97
  98 function pid_save()
  99 {
 100     $pid = getmypid();
 101     $fname = LEGAL_PATH."/brisk.pid";
 102
 103     if (file_exists($fname)) {
 104         log_crit("WARN: brisk.pid already exists");
 105     }
 106     file_put_contents($fname, sprintf("%d\n", $pid));
 107 }
 108
 109 function pid_remove()
 110 {
 111     $fname = LEGAL_PATH."/brisk.pid";
 112
 113     if (file_exists($fname)) {
 114         unlink($fname);
 115     }
 116 }
 117
 118 function post_manage(&$post, $line)
 119 {
 120     $a = explode('&', $line);
 121     for ($i = 0 ; $i < count($a) ; $i++) {
 122         $b = explode('=', $a[$i]);
 123         if (isset($b[0])) {
 124             if (isset($b[1])) {
 125                 $post[$b[0]] = urldecode($b[1]);
 126             }
 127             else {
 128                 $post[$b[0]] = "";
 129             }
 130         }
 131     }
 132 }
 133
 134 function spu_process_info($stream_info, &$method, &$header, &$get, &$post, &$cookie, &$rest, &$cont)
 135 {
 136     $check_post = FALSE;
 137     $header = array();
 138     $get = array();
 139     $post = array();
 140     $rest = 0;
 141     foreach(preg_split("/(\r?\n)/", $stream_info) as $line) {
 142         printf("LINE: [%s]\n", $line);
 143         if ($check_post) {
 144             if (!isset($header['The-Request'])) {
 145                 return FALSE;
 146             }
 147             $req = explode(" ", $header['The-Request']);
 148             $method = $req[0];
 149
 150             if (isset($header['Cookie'])) {
 151
 152                 // LINE: [Cookie:sess=50e053a9511ef; CO_splashdate4=1356420646; CO_list=all; table_idx=7; table_token=510d494986925; lang=it; CO_bin5_pref_ring_endauct=false; CO_splashdate5=1358372822; CO_splashdate1=1363203374; CO_splashdate2=1363374826; __utma=43654517.209888411.1356605271.1356605271.1356605271.1; __utmz=43654517.1356605271.1.1.utmcsr=(direct)|utmccn=(direct)|utmcmd=(none)]
 153
 154                 $cookies = explode("; ", $header['Cookie']);
 155                 for ($i = 0 ; $i < count($cookies) ; $i++) {
 156                     $name = mb_strstr($cookies[$i], "=", TRUE, 'UTF-8');
 157                     if ($name == FALSE) {
 158                         if (mb_strlen($cookies[$i]) > 0) {
 159                             $cookie[$cookies[$i]] = "";
 160                         }
 161                         else {
 162                             printf("WARNING: malformat cookie element [%s]\n", $cookies[$i]);
 163                         }
 164                         continue;
 165                     }
 166
 167                     $value = mb_substr($cookies[$i], mb_strlen($name)+1, 10140, 'UTF-8');
 168                     $cookie[$name] = urldecode($value);
 169                 }
 170             }
 171             // GET params management
 172             $get_vars = explode('?', $req[1], 2);
 173             $path = $get_vars[0];
 174             if (count($get_vars) > 1) {
 175                 $a = explode('&', $get_vars[1]);
 176                 printf("A COUNT: [%s] %d\n", $a[0], count($a));
 177                 for ($i = 0 ; $i < count($a) ; $i++) {
 178                     $b = explode('=', $a[$i]);
 179                     if ($b[0] == "")
 180                         continue;
 181                     $get[$b[0]] = urldecode($b[1]);
 182                 }
 183             }
 184             // POST params management
 185             if ($req[0] == 'POST') {
 186                 $conttype_all = explode(";", $header['Content-Type']);
 187                 $header['Content-Type'] = $conttype_all[0];
 188                 // $path_all[1-] other things like charset and so on
 189
 190                 // if (content-type is wrong || content-length isn't set)
 191                 //     return false
 192
 193                 if ($header['Content-Type'] != 'application/x-www-form-urlencoded'
 194                     || !isset($header['Content-Length'])) {
 195                     return FALSE;
 196                 }
 197                 $post_len = mb_strlen($line, "ASCII");
 198                 printf("INFO: postlen: %d\n", $post_len);
 199                 $rest = (int)($header['Content-Length']) - $post_len;
 200
 201                 if ($rest == 0) {
 202                     post_manage($post, $line);
 203                 }
 204                 else {
 205                     $cont = $line;
 206                 }
 207             }
 208             break;
 209         }
 210         if ($line == "") {
 211             $check_post = TRUE;
 212             continue;
 213         }
 214         $split = explode(":", $line, 2);
 215         $hea_id = trim(mb_convert_case($split[0], MB_CASE_TITLE, 'UTF-8'));
 216         $header[$hea_id] = $split[1];
 217     }
 218     return $path;
 219 }
 220
 221 function gpcs_var($name, $get, $post, $cookie)
 222 {
 223     if (isset($GLOBALS[$name]))
 224         return FALSE;
 225     else if (isset($cookie[$name]))
 226         return ($cookie[$name]);
 227     else if (isset($post[$name]))
 228         return ($post[$name]);
 229     else if (isset($get[$name]))
 230         return ($get[$name]);
 231
 232     return FALSE;
 233 }
 234
 235 function headers_render($header, $len)
 236 {
 237     $cookies = "";
 238
 239     if (isset($header['cookies'])) {
 240         $cookies = $header['cookies']->render();
 241         unset($header['cookies']);
 242     }
 243     if (isset($header['Location'])) {
 244         $s = sprintf("HTTP/1.1 302 OK\r\n%sLocation: %s\r\n", $cookies, $header['Location']);
 245     }
 246     else if (isset($header['HTTP-Response'])) {
 247         $s = sprintf("HTTP/1.1 %s\r\n", $header['HTTP-Response']);
 248         foreach($header as $key => $value) {
 249             if (strtolower($key) == "http-response")
 250                 continue;
 251             $s .= sprintf("%s: %s\r\n", $key, $value);
 252         }
 253         if ($len >= 0) {
 254             $s .= sprintf("Content-Length: %ld\r\n", $len);
 255         }
 256     }
 257     else {
 258         $s = "HTTP/1.1 200 OK\r\n";
 259
 260         if (!isset($header['Date']))
 261             $s .= sprintf("Date: %s\r\n", date(DATE_RFC822));
 262         if (!isset($header['Connection']))
 263             $s .= "Connection: close\r\n";
 264         if (!isset($header['Content-Type']))
 265             $s .= "Content-Type: text/html\r\n";
 266         foreach($header as $key => $value) {
 267             $s .= sprintf("%s: %s\r\n", $key, $value);
 268         }
 269         if ($len >= 0) {
 270             $s .= sprintf("Content-Length: %d\r\n", $len);
 271         }
 272         else {
 273             $s .= "Cache-Control: no-cache, must-revalidate\r\n";
 274             $s .= "Expires: Mon, 26 Jul 1997 05:00:00 GMT\r\n";
 275             if (!isset($header['Content-Encoding'])) {
 276                 $s .= "Content-Encoding: chunked\r\n";
 277             }
 278             $s .= "Transfer-Encoding: chunked\r\n";
 279         }
 280         $s .= $cookies;
 281     }
 282     $s .= "\r\n";
 283
 284     return ($s);
 285 }
 286
 287 /*
 288  *  Caching system using ob php system to cache old style pages
 289  *  to a var and than send it with more calm
 290  */
 291
 292 function shutta()
 293 {
 294   log_rd2("SHUTTA [".connection_status()."] !");
 295 }
 296
 297 register_shutdown_function('shutta');
 298
 299 /*
 300  *  MAIN
 301  */
 302
 303 function get_encoding($header)
 304 {
 305     $enc = "plain";
 306     if (isset($header['Accept-Encoding'])) {
 307         $acc = explode(',', $header['Accept-Encoding']);
 308
 309         if (array_search('gzip', $acc) !== FALSE) {
 310             $enc = 'gzip';
 311         }
 312         else if (array_search('deflate', $acc) !== FALSE) {
 313             $enc = 'deflate';
 314         }
 315     }
 316
 317     return ($enc);
 318 }
 319
 320 class Cookie {
 321     var $attr;
 322     // Set-Cookie: reg_fb_gate=deleted; Expires=Thu, 01-Jan-1970 00:00:01 GMT; Path=/; Domain=.foo.com; HttpOnly
 323     // string $name  [, string $value  [, int $expire = 0  [, string $path  [, string $domain  [, bool $secure = false  [, bool $httponly = false  ]]]]]] )
 324     function Cookie()
 325     {
 326         $this->attr = array();
 327     }
 328
 329     static function create($name)
 330     {
 331         $thiz = new Cookie();
 332
 333         $thiz->attr[$name] = "";
 334
 335         $argc = func_num_args();
 336         for ($i = 1 ; $i < $argc ; $i++) {
 337             $arg = func_get_arg($i);
 338             switch ($i) {
 339             case 1:
 340                 $thiz->attr[$name] = urlencode($arg);
 341                 break;
 342             case 2:
 343                 $thiz->attr['Expires'] = gmdate('D, d M Y H:i:s \G\M\T', $arg); // RFC 1211 format
 344                 break;
 345             case 3:
 346                 $thiz->attr['Path'] = $arg;
 347                 break;
 348             case 4:
 349                 $thiz->attr['Domain'] = $arg;
 350                 break;
 351             case 5:
 352                 if ($arg == TRUE) {
 353                     $thiz->attr['Secure'] = NULL;
 354                 }
 355                 break;
 356             case 6:
 357                 if ($arg == TRUE) {
 358                     $thiz->attr['HttpOnly'] = NULL;
 359                 }
 360                 break;
 361             default:
 362                 return FALSE;
 363             }
 364         }
 365
 366         return $thiz;
 367     }
 368
 369     function render()
 370     {
 371         $r = "Set-Cookie: ";
 372         $isfirst = TRUE;
 373
 374         foreach ($this->attr as $k => $v) {
 375             if ($v == NULL) {
 376                 $r .= sprintf("%s%s", ($isfirst ? "" : "; "), $k);
 377             }
 378             else {
 379                 $r .= sprintf("%s%s=%s", ($isfirst ? "" : "; "), $k, $v);
 380             }
 381             $isfirst = FALSE;
 382         }
 383         $r .= "\r\n";
 384
 385         return $r;
 386     }
 387 }
 388
 389 class Cookies {
 390     var $cookies;
 391
 392     function Cookies()
 393     {
 394         $this->cookies = array();
 395     }
 396
 397     function add($name)
 398     {
 399         if (($cookie = call_user_func_array("Cookie::create", func_get_args())) == FALSE)
 400             return (FALSE);
 401
 402         array_push($this->cookies, $cookie);
 403
 404         return (TRUE);
 405     }
 406
 407     function render()
 408     {
 409         $r = "";
 410         foreach ($this->cookies as $cookie) {
 411             $r .= $cookie->render();
 412         }
 413
 414         return ($r);
 415     }
 416 }
 417
 418
 419 class Sac_a_push {
 420     // maybe fixed_fd is unuseful
 421     static $fixed_fd = 3;
 422     static $cnt_master = NULL;
 423     static $cnt_slave  = NULL;
 424
 425     var $provider_proxy; // list of provider/browser that offer proxy service
 426
 427     var $file_socket;
 428     var $unix_socket;
 429     var $direct_socket;   // socket where read direct commands
 430     var $socks;
 431     var $s2u;             // user associated with input socket
 432     var $s2p;             // pending page associated with input socket
 433     var $pending_pages;
 434     var $is_daemon;
 435
 436     var $list_web;
 437     var $list_cmd;
 438     var $in;
 439
 440     var $debug;
 441     var $blocking_mode;
 442
 443     var $app;
 444
 445     var $curtime;
 446
 447     var $rndstr;
 448     var $main_loop;
 449
 450     function Sac_a_push()
 451     {
 452     }
 453
 454     function sig_handler($sig)
 455     {
 456         switch ($sig) {
 457         case SIGINT:
 458             exit(1);
 459             break;
 460         case SIGTERM:
 461             if (static::$cnt_master != NULL) {
 462                     fwrite(static::$cnt_master, "\nshutdown\n");
 463                     fflush(static::$cnt_master);
 464             }
 465             else {
 466                 exit(1);
 467             }
 468             break;
 469         case SIGHUP:
 470             if (static::$cnt_master != NULL) {
 471                 fwrite(static::$cnt_master, "\nreload\n");
 472                 fflush(static::$cnt_master);
 473             }
 474             break;
 475         }
 476     }
 477
 478     static function create(&$app, $sockname, $debug, $blocking_mode, $provider_proxy, $argv)
 479     {
 480         $thiz = new Sac_a_push();
 481
 482         $thiz->app = $app;
 483
 484         $thiz->provider_proxy = ProviderProxy::create();
 485
 486         $thiz->file_socket = $sockname;
 487         $thiz->unix_socket = "unix://$sockname";
 488         $thiz->direct_socket = "unix://${sockname}2";
 489         $thiz->debug = $debug;
 490         $thiz->socks = array();
 491         $thiz->s2u  = array();
 492         $thiz->s2p  = array();
 493         $thiz->pending_pages = array();
 494         $thiz->is_daemon = FALSE;
 495
 496         if (array_search("-d", $argv) !== FALSE || array_search("--daemon", $argv) !== FALSE) {
 497             $thiz->is_daemon = TRUE;
 498         }
 499
 500         // create a couple of sockets for control management
 501         if (($sockpair = stream_socket_pair(STREAM_PF_UNIX, STREAM_SOCK_STREAM,
 502                                             STREAM_IPPROTO_IP)) == FALSE) {
 503             return FALSE;
 504         }
 505         static::$cnt_master = $sockpair[0];
 506         static::$cnt_slave  = $sockpair[1];
 507
 508         pcntl_signal(SIGTERM, array("Sac_a_push", "sig_handler"));
 509         pcntl_signal(SIGINT, array("Sac_a_push", "sig_handler"));
 510         pcntl_signal(SIGHUP, array("Sac_a_push", "sig_handler"));
 511
 512         $thiz->blocking_mode = 0; // 0 for non-blocking
 513
 514         $thiz->rndstr = "";
 515         for ($i = 0 ; $i < 4096 ; $i++) {
 516             if (($i % 128) == 0)
 517                 $thiz->rndstr .= " ";
 518             else
 519                 $thiz->rndstr .= chr(mt_rand(65, 90));
 520         }
 521
 522         if (file_exists($thiz->file_socket)) {
 523             unlink($thiz->file_socket);
 524         }
 525         if (file_exists($thiz->file_socket."2")) {
 526             unlink($thiz->file_socket."2");
 527         }
 528
 529         $old_umask = umask(0);
 530         if (($thiz->list_web = stream_socket_server($thiz->unix_socket, $err, $errs)) === FALSE) {
 531             return (FALSE);
 532         }
 533         if (($thiz->list_cmd = stream_socket_server($thiz->direct_socket, $err, $errs)) === FALSE) {
 534             return (FALSE);
 535         }
 536         umask($old_umask);
 537         stream_set_blocking($thiz->list_web, $thiz->blocking_mode); # Set the stream to non-blocking
 538         stream_set_blocking($thiz->list_cmd, $thiz->blocking_mode); # Set the stream to non-blocking
 539
 540         if (($thiz->in = fopen("php://stdin", "r")) === FALSE) {
 541             return(FALSE);
 542         }
 543
 544         $thiz->main_loop = FALSE;
 545         $thiz->reload(TRUE, $provider_proxy);
 546
 547         return ($thiz);
 548     }
 549
 550     function socks_set($sock, $user, $pendpage)
 551     {
 552         $id = intval($sock);
 553
 554         $this->socks[$id] = $sock;
 555         if ($user != NULL)
 556             $this->s2u[$id]   = $user;
 557         if ($pendpage != NULL)
 558             $this->s2p[$id]   = $pendpage;
 559     }
 560
 561     function socks_unset($sock)
 562     {
 563         $id = intval($sock);
 564
 565         if (isset($this->s2u[$id]))
 566             unset($this->s2u[$id]);
 567         if (isset($this->s2p[$id]))
 568             unset($this->s2p[$id]);
 569         unset($this->socks[$id]);
 570     }
 571
 572     function pendpage_try_addcont(&$new_socket, $tout, $method, $header, $get, $post, $cookie, $path, $addr, $rest, $cont)
 573     {
 574         $pendpage = PendingPage::pendingpage_continue(&$new_socket, $this->curtime, $tout, $method,
 575                                                            $header,           $get, $post, $cookie,
 576                                                              $path,          $addr, $rest, $cont);
 577
 578         $pendpage->try_flush($this->curtime);
 579         // Add $pendpage to the pendpage array (in any case)
 580         fprintf(STDERR, "IMPORTANT: Pendadd: %d\n", $pendpage->status);
 581         $this->pendpage_add($pendpage);
 582     }
 583
 584     function pendpage_try_addflush(&$new_socket, $tout, $enc, $header_out, $content)
 585     {
 586         $pendpage = PendingPage::pendingpage_flushing($new_socket, $this->curtime, $tout, $enc, $header_out, $content);
 587
 588         if ($pendpage->try_flush($this->curtime) == FALSE) {
 589             // Add $pendpage to the pendpage array
 590             $this->pendpage_add($pendpage);
 591         }
 592     }
 593
 594     function pendpage_add($pendpage)
 595     {
 596         array_push($this->pending_pages, $pendpage);
 597         $this->socks_set($pendpage->socket_get(), NULL, $pendpage);
 598     }
 599
 600     function pendpage_rem($pendpage)
 601     {
 602         $sock = $pendpage->socket_get();
 603         if (($key = array_search($pendpage, $this->pending_pages)) !== FALSE) {
 604             unset($this->pending_pages[$key]);
 605         }
 606         else {
 607             fprintf(STDERR, "WARNING: pendpage not found\n");
 608         }
 609         $this->socks_unset($sock);
 610         fprintf(STDERR, "PP_REM: %d\n", intval($sock));
 611     }
 612
 613
 614     function pendpage_try_addwait(&$new_socket, $tout, $method, $header, $get, $post, $cookie, $path, $addr, $rest, $cont)
 615     {
 616         $pendpage = PendingPage::pendingpage_waiting($new_socket, $this->curtime, $tout, $method, $header, $get, $post, $cookie, $path, $addr, $rest, $cont);
 617         /*
 618         if ($pendpage->try_flush($this->curtime) == FALSE) {
 619             // Add $pendpage to the pendpage array
 620             */
 621         $this->pendpage_add($pendpage);
 622         /*
 623         }
 624         */
 625     }
 626
 627     function garbage_manager($force)
 628     {
 629         $this->app->garbage_manager($force);
 630
 631         foreach ($this->socks as $k => $sock) {
 632             $id = intval($sock);
 633             if (isset($this->s2u[$id])) {
 634                 if ($this->s2u[$id]->the_end) {
 635                     if ($this->s2u[$id]->rd_socket_get() != NULL) {
 636                         $this->s2u[$id]->rd_socket_set(NULL);
 637                     }
 638                     unset($this->socks[$id]);
 639                     unset($this->s2u[$id]);
 640                     fclose($sock);
 641                     printf("CLOSE ON GARBAGE MANAGER\n");
 642                 }
 643             }
 644         }
 645         $this->app->users_cleanup();
 646     }
 647
 648     function check_globals()
 649     {
 650         GLOBAL $_globals_list;
 651         foreach ($_globals_list as $g) {
 652             if (!array_search($g, $GLOBALS) || !isset($GLOBALS[$g])) {
 653                 error_log(sprintf("Global [%s] not declared", $g));
 654                 return FALSE;
 655             }
 656         }
 657         return TRUE;
 658     }
 659
 660     function run()
 661     {
 662         GLOBAL $DOCUMENT_ROOT, $HTTP_HOST;
 663
 664         GLOBAL $G_alarm_passwd, $G_ban_list, $G_black_list, $G_cloud_smasher, $G_provider_proxy;
 665         GLOBAL $G_btrace_pref_sub, $G_dbauth;
 666         GLOBAL $G_dbpfx, $G_donors_all, $G_donors_cur, $G_is_local, $G_lang;
 667         GLOBAL $G_poll_entries, $G_poll_name, $G_poll_title, $G_proxy_white_list;
 668         GLOBAL $G_room_roadmap, $G_shutdown;
 669         GLOBAL $G_splash_content, $G_splash_contents, $G_splash_cont_idx;
 670         GLOBAL $G_splash_h, $G_splash_idx, $G_splash_interval, $G_splash_timeout;
 671         GLOBAL $G_splash_w, $G_topbanner, $G_with_donors, $G_with_poll;
 672         GLOBAL $G_with_splash, $G_sidebanner, $G_sidebanner_idx;
 673         GLOBAL $G_with_topbanner;
 674         GLOBAL $G_tos_vers, $G_tos_fname, $G_tos_dtsoft, $G_tos_dthard, $G_tos_idx, $G_doc_path;
 675
 676         if (!$this->check_globals()) {
 677             fprintf(STDERR, "Take a look to the phplog file, GLOBALS missing!\n");
 678             sleep(10);
 679         }
 680
 681         if ($this->main_loop) {
 682             return (FALSE);
 683         }
 684
 685         $this->main_loop = TRUE;
 686
 687         while ($this->main_loop) {
 688             $this->app->sess_cur_set(FALSE);
 689             $this->curtime = time();
 690             fprintf(STDERR, "IN LOOP: Current opened: %d  pending_pages: %d\n", count($this->socks), count($this->pending_pages));
 691
 692             /* Prepare the read array */
 693             /* // when we manage it ... */
 694             /* if ($shutdown)  */
 695             /*     $read   = array_merge(array("$in" => $in), $socks); */
 696             /* else */
 697             $pre_read = array_merge(array(intval($this->list_web) => $this->list_web,
 698                                           intval($this->list_cmd) => $this->list_cmd,
 699                                           intval(static::$cnt_slave) => static::$cnt_slave),
 700                                     $this->socks);
 701             if ($this->is_daemon == FALSE) {
 702                 $read = array_merge($pre_read, array(intval($this->in) => $this->in));
 703             }
 704             else {
 705                 $read = $pre_read;
 706             }
 707
 708             if ($this->debug > 1) {
 709                 printf("PRE_SELECT\n");
 710                 print_r($read);
 711             }
 712             $write  = NULL;
 713             $except = NULL;
 714             $num_changed_sockets = @stream_select($read, $write, $except, 0, 500000);
 715
 716             if ($num_changed_sockets == 0) {
 717                 printf(" no data in 5 secs, splash [%d]\n", $G_with_splash);
 718             }
 719             else if ($num_changed_sockets > 0) {
 720                 printf("num sock %d num_of_socket: %d\n", $num_changed_sockets, count($read));
 721                 if ($this->debug > 1) {
 722                     print_r($read);
 723                 }
 724                 /* At least at one of the sockets something interesting happened */
 725                 foreach ($read as $i => $sock) {
 726                     $id = intval($sock);
 727                     $manage_page = FALSE;
 728                     /* is_resource check is required because there is the possibility that
 729                        during new request an old connection is closed */
 730                     if (!is_resource($sock)) {
 731                         continue;
 732                     }
 733                     if ($sock === $this->list_web) {
 734                         printf("NUOVA CONNEX\n");
 735                         if (($new_unix = stream_socket_accept($this->list_web)) == FALSE) {
 736                             printf("SOCKET_ACCEPT FAILED\n");
 737                             continue;
 738                         }
 739                         $stream_info = "";
 740                         $method      = "";
 741                         $get         = array();
 742                         $post        = array();
 743                         $cookie      = array();
 744                         $rest        = 0;
 745                         $cont        = "";
 746                         if (($new_socket = ancillary_getstream($new_unix, $stream_info)) !== FALSE) {
 747                             printf("NEW_SOCKET: %d\n", intval($new_socket));
 748                             stream_set_blocking($new_socket, $this->blocking_mode); // Set the stream to non-blocking
 749                             printf("RECEIVED HEADER:\n%s", $stream_info);
 750                             if (($path = spu_process_info($stream_info, $method, $header,
 751                                                           $get, $post, $cookie, $rest, $cont))
 752                                 == FALSE) {
 753                                 fprintf(STDERR, "TODO: fix wrong header management\n");
 754                             }
 755                             $addr_full = stream_socket_get_name($new_socket, TRUE);
 756                             // FOR TEST $header['X-Forwarded-For'] = '154.155.22.33';
 757                             $addr = $this->pproxy_realip($header, addrtoipv4($addr_full));
 758
 759                             printf("PATH: [%s] [%s]\n", $path, print_r($header, TRUE));
 760                             if ($method == "POST" && $rest > 0) {
 761                                 if (isset($header['Expect']) && $header['Expect'] == '100-continue') {
 762                                     fprintf(STDERR, "\nPOSTA DE CHE\n\n");
 763                                     $this->pendpage_try_addcont($new_socket, 20,
 764                                                                 $method, $header, $get, $post, $cookie,
 765                                                                 $path, $addr, $rest, $cont);
 766                                 }
 767                                 else {
 768                                     $this->pendpage_try_addwait($new_socket, 20,
 769                                                                 $method, $header, $get, $post, $cookie,
 770                                                                 $path, $addr, $rest, $cont);
 771                                 }
 772                             }
 773                             else {
 774                                 $manage_page = TRUE;
 775                             }
 776
 777                             printf("number of sockets after %d\n", count($this->socks));
 778                         }
 779                         else {
 780                             printf("WARNING: ancillary_getstream failed\n");
 781                         }
 782                     }
 783                     else if ($sock === $this->list_cmd) {
 784                         printf("NUOVA DIRECT CONNEX\n");
 785                         if (($new_unix = stream_socket_accept($this->list_cmd)) == FALSE) {
 786                             printf("SOCKET_ACCEPT FAILED\n");
 787                             continue;
 788                         }
 789                         stream_set_blocking($new_unix, $this->blocking_mode);
 790                         $this->direct_mgmt($new_unix);
 791                     } // not socket_list nor socket_list_cmd
 792                     else {  // already opened socket
 793                         $buf = fread($sock, 4096);
 794                         // if socket is closed
 795                         if ($buf == FALSE || feof($sock)) {
 796                             // close socket case
 797                             if ($buf == FALSE) {
 798                                 printf("INFO: read return false\n");
 799                             }
 800                             if ($sock === $this->list_web) {
 801                                 printf("Arrivati %d bytes da list\n", mb_strlen($buf, "ASCII"));
 802                                 return(21);
 803                             }
 804                             else if ($sock === $this->list_cmd) {
 805                                 printf("Arrivati %d bytes da list_cmd\n", mb_strlen($buf, "ASCII"));
 806                                 return(23);
 807                             }
 808                             else if ($sock === $this->in || $sock === static::$cnt_slave) {
 809                                 printf("Arrivati %d bytes da stdin\n", mb_strlen($buf, "ASCII"));
 810                                 return(22);
 811                             }
 812                             else {
 813                                 unset($this->socks[$id]);
 814                                 if (isset($this->s2u[$id])) {
 815                                     // $user_a[$s2u[$id]]->disable();
 816                                     if ($this->s2u[$id]->rd_socket_get() != NULL) {
 817                                         // try to send close frame (for websocket)
 818                                         $clo = $this->s2u[$id]->stream_close();
 819                                         $clo_l = mb_strlen($clo, "ASCII");
 820                                         @fwrite($sock, $clo, $clo_l);
 821                                         $this->s2u[$id]->rd_socket_set(NULL);
 822                                     }
 823                                     unset($this->s2u[$id]);
 824                                 }
 825                             }
 826                             fclose($sock);
 827                             printf("CLOSE ON READ\n");
 828
 829                             if ($this->debug > 1) {
 830                                 printf("post unset\n");
 831                                 print_r($this->socks);
 832                             }
 833                         }  // if ($buf == FALSE || mb_strlen($buf, "ASCII") == 0) {
 834                         else { // data on the socket
 835                             if ($this->debug > 1) {
 836                                 print_r($read);
 837                             }
 838                             if ($sock === $this->list_web) {
 839                                 printf("Arrivati %d bytes da list\n", mb_strlen($buf, "ASCII"));
 840                             }
 841                             else if ($sock === $this->list_cmd) {
 842                                 printf("Arrivati %d bytes da list_cmd\n", mb_strlen($buf, "ASCII"));
 843                             }
 844                             else if ($sock === $this->in || $sock === static::$cnt_slave) {
 845                                 printf("Arrivati %d bytes da stdin\n", mb_strlen($buf, "ASCII"));
 846                                 $line = trim($buf);
 847                                 if ($line == "reload") {
 848                                     require("$DOCUMENT_ROOT/Etc/".BRISK_CONF);
 849                                     $this->reload(FALSE, $G_provider_proxy);
 850                                     $this->app->reload(FALSE, $G_ban_list, $G_black_list,
 851                                                        $G_cloud_smasher);
 852                                     if (!$this->check_globals()) {
 853                                         fprintf(STDERR, "Take a look to the phplog file, GLOBALS missing!\n");
 854                                         sleep(10);
 855                                     }
 856                                     global_dump();
 857                                 }
 858                                 else if ($line == "shutdown" || $line == "sd") {
 859                                     if ($this->app->dump_data()) {
 860                                         return(0);
 861                                     }
 862                                     else {
 863                                         return(1);
 864                                     }
 865                                 }
 866                             }
 867                             else {  // data arrived from not special socket
 868                                 $key = array_search("$sock", $this->socks);
 869                                 fprintf(STDERR, "Arrivati %d bytes dalla socket n. %d\n", mb_strlen($buf, "ASCII"), $key);
 870                                 if (isset($this->s2p[$id])) {
 871                                     $this->s2p[$id]->rest -= mb_strlen($buf, "ASCII");
 872                                     $this->s2p[$id]->cont .= $buf;
 873                                     if ($this->s2p[$id]->rest <= 0) {
 874                                         $header = $new_socket = $path = $addr = $get = $cookie = 0;
 875                                         $post = array();
 876
 877                                         $this->s2p[$id]->context_get($header, $new_socket, $path, $addr, $get, $post, $cookie);
 878                                         $this->pendpage_rem($this->s2p[$id]);
 879                                         fprintf(STDERR, "SOCKET RUN: %s\n", $new_socket);
 880
 881                                         $manage_page = TRUE;
 882                                     }
 883                                 }
 884                             }
 885                         }
 886                     }
 887
 888                     if ($manage_page == TRUE) {
 889                         printf("M: %s\nHEADER:\n", $method);
 890                         print_r($header);
 891                         printf("GET:\n");
 892                         print_r($get);
 893                         printf("POST:\n");
 894                         print_r($post);
 895                         printf("COOKIE:\n");
 896                         print_r($cookie);
 897
 898                         $header_out = array();
 899                         // TODO: MOVE DOWN request_mgr to factorize new_sockets and POST closed
 900                         $rret = FALSE;
 901                         if (!strncmp($path, SITE_PREFIX, SITE_PREFIX_LEN)) {
 902                             $rret = $this->app->request_mgr($this, $header, $header_out, $new_socket, substr($path, SITE_PREFIX_LEN), $addr, $get, $post, $cookie);
 903                         }
 904                         if ($rret == FALSE) {
 905                             // FIXME: manage 404 !!!
 906                             printf("TODO: fix unknown page\n");
 907                             fclose($new_socket);
 908                         }
 909                     }
 910                 }
 911             }
 912
 913             $this->garbage_manager(FALSE);
 914
 915             /* manage unfinished pages */
 916             foreach ($this->pending_pages as $k => $pendpage) {
 917                 // TODO: try_flush if exists in the class
 918                 if ($pendpage->try_flush($this->curtime) == TRUE) {
 919                     unset($this->pending_pages[$k]);
 920                 }
 921             }
 922
 923             /*
 924                $response:                        raw stream data not sent
 925                $content:                         html consistent data (<script bla bla>)
 926                $user->stream_keepalive($w_ping)  ping srv->cli OR srv->cli + cli->srv if $w_ping == TRUE
 927             */
 928
 929             /* manage open streaming */
 930             foreach ($this->socks as $k => $sock) {
 931                 $id = intval($sock);
 932                 if (isset($this->s2u[$id])) {
 933                     $user = $this->s2u[$id];
 934
 935                     if ($user->rd_toflush) {
 936                         if (fflush($sock) == FALSE)
 937                             continue;
 938                         else
 939                             $user->rd_toflush = FALSE;
 940                     }
 941                     $response = $user->rd_cache_get();
 942                     $do_ping = FALSE;
 943                     if (($this->curtime - $user->lacc) > (EXPIRE_TIME_RD / 3)) {
 944                         $do_ping = TRUE;
 945                     }
 946                     else {
 947                         $user->ping_req = FALSE;
 948                     }
 949
 950                     if ($response == "") {
 951                         $content = "";
 952                         $user->stream_main($content, $get, $post, $cookie);
 953                         printf("[%s] [%d] [%d]\n", $user->name, $user->lacc, $this->curtime);
 954                         if ($do_ping && $user->ping_req == FALSE) {
 955                             $content .= $user->stream_keepalive(TRUE);
 956                             $user->ping_req = TRUE;
 957                         }
 958                         else if ($content == "" && $user->rd_kalive_is_expired($this->curtime)) {
 959                             $content = $user->stream_keepalive(FALSE);
 960                         }
 961                         if ($content != "") {
 962                             $response = $user->chunked_content($content);
 963                         }
 964                     }
 965
 966                     if ($response != "") {
 967                         // echo "SPIA: [".substr($response, 0, 60)."...]\n";
 968                         // echo "SPIA: [".$response."]\n";
 969                         $response_l = mb_strlen($response, "ASCII");
 970                         $wret = @fwrite($sock, $response, $response_l);
 971                         if ($wret < $response_l) {
 972                             printf("TROUBLE WITH FWRITE: %d\n", $wret);
 973                             $user->rd_cache_set(mb_substr($response, $wret, $response_l - $wret, "ASCII"));
 974                         }
 975                         else {
 976                             $user->rd_cache_set("");
 977                         }
 978                         if (fflush($sock) == FALSE) {
 979                             $user->rd_toflush = TRUE;
 980                             continue;
 981                         }
 982                         $user->rd_kalive_reset($this->curtime);
 983                     }
 984
 985                     // close socket after a while to prevent client memory consumption
 986                     if ($user->rd_endtime_is_expired($this->curtime)) {
 987                         if ($this->s2u[$id]->rd_socket_get() != NULL) {
 988                             $this->s2u[$id]->rd_socket_set(NULL);
 989                         }
 990                         unset($this->socks[$id]);
 991                         unset($this->s2u[$id]);
 992                         $clo = $user->stream_close();
 993                         $clo_l = mb_strlen($clo, "ASCII");
 994                         @fwrite($sock, $clo, $clo_l);
 995                         fclose($sock);
 996                         printf("CLOSE ON LOOP\n");
 997                     }
 998                 }  // if (isset($this->s2u[$id]...
 999             }  // foreach ($this->socks...
1000             printf("\n");
1001             if (defined('CURL_DE_SAC_VERS')) {
1002                 $this->app->cds->process();
1003             }
1004         }  // while (...
1005     }  // function run(...
1006
1007     function pproxy_realip(&$header, $ip_str)
1008     {
1009         return ($this->provider_proxy->realip($header, $ip_str));
1010     }
1011
1012     function reload($is_first, $prov_proxy)
1013     {
1014         fprintf(STDERR, "SAP RELOAD STUFF (%d)\n", count($prov_proxy));
1015
1016         $this->provider_proxy->update($prov_proxy);
1017     }
1018
1019     function direct_command($cmdstr)
1020     {
1021         GLOBAL $G_alarm_passwd;
1022
1023         $cmd = cmd_deserialize($cmdstr);
1024
1025         if (!isset($cmd['cmd'])) {
1026             return cmd_return(500, 'no cmd found');
1027         }
1028         // "cmd" => "userauth", "sess" => 'xxxxxxxxxxx', 'private' => 'it_must_be_correct',
1029         //           'the_end' => 'true' );
1030         // cmd=userauth&sess=52d796ac08c47&private=yourpasswd192.168.122.152d796ac08c47&the_end=true
1031         if ($cmd['cmd'] == 'userauth') {
1032             if (!isset($cmd['sess']) || !isset($cmd['private'])) {
1033                 return cmd_return(401, 'malformed cmd');
1034             }
1035             $idx = -1;
1036             if (($user = $this->app->get_user($cmd['sess'], &$idx)) == FALSE)
1037                 return cmd_return(402, 'user not found');
1038
1039             if (($user->flags & USER_FLAG_TY_ADMIN) == 0x00)
1040                 return cmd_return(403, 'permission denied');
1041
1042             if (md5($G_alarm_passwd.$user->ip.$user->sess) != $cmd['private'])
1043                 return cmd_return(404, 'authentication failed ['.$cmd['private'].']['.$G_alarm_passwd.$user->ip.$user->sess.']');
1044
1045             return cmd_return(200, 'success');
1046         }
1047
1048         return cmd_return(501, 'no cmd found');
1049     }
1050
1051     function direct_mgmt($socket)
1052     {
1053         printf("DIRECT: begin\n");
1054         $st = DIRECT_ST_READ;
1055         $cmd_all = "";
1056         $endtime = $this->curtime + 3;
1057
1058         while(time() <= $endtime) {
1059             printf("DIRECT: init loop %d\n", $st);
1060             if ($st == DIRECT_ST_READ) {
1061                 $buf = fread($socket, 4096);
1062                 if ($buf == FALSE && feof($socket)) {
1063                     break;
1064                 }
1065                 else if ($buf != FALSE && strlen($buf) > 0) {
1066                     $cmd_all .= $buf;
1067
1068                     if (substr(trim($cmd_all), -13) == "&the_end=true") {
1069                         $output_arr = $this->direct_command($cmd_all);
1070                         $output = cmd_serialize($output_arr);
1071                         $output_cur = 0;
1072                         $output_len = mb_strlen($output, "ASCII");
1073                         $st = DIRECT_ST_WRITE;
1074                         continue;
1075                     }
1076                 }
1077             }
1078             else if ($st == DIRECT_ST_WRITE)  {
1079                 $ret = fwrite($socket, $output, $output_len);
1080                 if ($ret === FALSE) {
1081                     if (feof($socket)) {
1082                         break;
1083                     }
1084                 }
1085                 else if ($ret > 0 && $ret < $output_len) {
1086                     $output = substr($output, -($output_len - $ret));
1087                     $output_len -= $ret;
1088                     continue;
1089                 }
1090                 else if ($ret == $output_len) {
1091                     fclose($socket);
1092                     return TRUE;
1093                 }
1094             }
1095             usleep(10000);
1096         }
1097
1098         fclose($socket);
1099         return FALSE;
1100     }
1101 } // class Sac_a_push
1102 ?>