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