web/Obj/sac-a-push.phh

   1 <?php
   2 /*
   3  *  brisk - Obj/sac-a-push.phh
   4  *
   5  *  Copyright (C) 2012 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 declare(ticks = 1);
  29
  30 function global_dump()
  31 {
  32     GLOBAL $G_alarm_passwd, $G_black_list, $G_btrace_pref_sub, $G_dbauth;
  33     GLOBAL $G_dbpfx, $G_donors_all, $G_donors_cur, $G_is_local, $G_lang;
  34     GLOBAL $G_poll_entries, $G_poll_name, $G_poll_title, $G_proxy_white_list;
  35     GLOBAL $G_room_roadmap, $G_shutdown, $G_sidebanner, $G_sidebanner2;
  36     GLOBAL $G_splash_content, $G_splash_contents, $G_splash_cont_idx;
  37     GLOBAL $G_splash_h, $G_splash_idx, $G_splash_interval, $G_splash_timeout;
  38     GLOBAL $G_splash_w, $G_topbanner, $G_with_donors, $G_with_poll;
  39     GLOBAL $G_with_sidebanner, $G_with_sidebanner2, $G_with_splash;
  40     GLOBAL $G_with_topbanner;
  41
  42     fprintf(STDERR, "G_alarm_passwd = [%s]\n", print_r($G_alarm_passwd, TRUE));
  43     fprintf(STDERR, "G_black_list = [%s]\n", print_r($G_black_list, TRUE));
  44     fprintf(STDERR, "G_btrace_pref_sub = [%s]\n", print_r($G_btrace_pref_sub, TRUE));
  45     fprintf(STDERR, "G_dbauth = [%s]\n", print_r($G_dbauth, TRUE));
  46     fprintf(STDERR, "G_dbpfx = [%s]\n", print_r($G_dbpfx, TRUE));
  47     fprintf(STDERR, "G_donors_all = [%s]\n", print_r($G_donors_all, TRUE));
  48     fprintf(STDERR, "G_donors_cur = [%s]\n", print_r($G_donors_cur, TRUE));
  49     fprintf(STDERR, "G_is_local = [%s]\n", print_r($G_is_local, TRUE));
  50     fprintf(STDERR, "G_lang = [%s]\n", print_r($G_lang, TRUE));
  51     fprintf(STDERR, "G_poll_entries = [%s]\n", print_r($G_poll_entries, TRUE));
  52     fprintf(STDERR, "G_poll_name = [%s]\n", print_r($G_poll_name, TRUE));
  53     fprintf(STDERR, "G_poll_title = [%s]\n", print_r($G_poll_title, TRUE));
  54     fprintf(STDERR, "G_proxy_white_list = [%s]\n", print_r($G_proxy_white_list, TRUE));
  55     fprintf(STDERR, "G_room_roadmap = [%s]\n", print_r($G_room_roadmap, TRUE));
  56     fprintf(STDERR, "G_shutdown = [%s]\n", print_r($G_shutdown, TRUE));
  57     fprintf(STDERR, "G_sidebanner = [%s]\n", print_r($G_sidebanner, TRUE));
  58     fprintf(STDERR, "G_sidebanner2 = [%s]\n", print_r($G_sidebanner2, TRUE));
  59     fprintf(STDERR, "G_splash_content = [%s]\n", print_r($G_splash_content, TRUE));
  60     fprintf(STDERR, "G_splash_contents = [%s]\n", print_r($G_splash_contents, TRUE));
  61     fprintf(STDERR, "G_splash_cont_idx = [%s]\n", print_r($G_splash_cont_idx, TRUE));
  62     fprintf(STDERR, "G_splash_h = [%s]\n", print_r($G_splash_h, TRUE));
  63     fprintf(STDERR, "G_splash_idx = [%s]\n", print_r($G_splash_idx, TRUE));
  64     fprintf(STDERR, "G_splash_interval = [%s]\n", print_r($G_splash_interval, TRUE));
  65     fprintf(STDERR, "G_splash_timeout = [%s]\n", print_r($G_splash_timeout, TRUE));
  66     fprintf(STDERR, "G_splash_w = [%s]\n", print_r($G_splash_w, TRUE));
  67     fprintf(STDERR, "G_topbanner = [%s]\n", print_r($G_topbanner, TRUE));
  68     fprintf(STDERR, "G_with_donors = [%s]\n", print_r($G_with_donors, TRUE));
  69     fprintf(STDERR, "G_with_poll = [%s]\n", print_r($G_with_poll, TRUE));
  70     fprintf(STDERR, "G_with_sidebanner = [%s]\n", print_r($G_with_sidebanner, TRUE));
  71     fprintf(STDERR, "G_with_sidebanner2 = [%s]\n", print_r($G_with_sidebanner2, TRUE));
  72     fprintf(STDERR, "G_with_splash = [%s]\n", print_r($G_with_splash, TRUE));
  73     fprintf(STDERR, "G_with_topbanner = [%s]\n", print_r($G_with_topbanner, TRUE));
  74 }
  75
  76 function pid_save()
  77 {
  78     $pid = getmypid();
  79     $fname = LEGAL_PATH."/brisk.pid";
  80
  81     if (file_exists($fname)) {
  82         log_crit("WARN: brisk.pid already exists");
  83     }
  84     file_put_contents($fname, sprintf("%d\n", $pid));
  85 }
  86
  87 function pid_remove()
  88 {
  89     $fname = LEGAL_PATH."/brisk.pid";
  90
  91     if (file_exists($fname)) {
  92         unlink($fname);
  93     }
  94 }
  95
  96 function post_manage(&$post, $line)
  97 {
  98     $a = explode('&', $line);
  99     for ($i = 0 ; $i < count($a) ; $i++) {
 100         $b = explode('=', $a[$i]);
 101         if (isset($b[0])) {
 102             if (isset($b[1])) {
 103                 $post[$b[0]] = urldecode($b[1]);
 104             }
 105             else {
 106                 $post[$b[0]] = "";
 107             }
 108         }
 109     }
 110 }
 111
 112 function spu_process_info($stream_info, &$method, &$header, &$get, &$post, &$cookie, &$rest, &$cont)
 113 {
 114     $check_post = FALSE;
 115     $header = array();
 116     $get = array();
 117     $post = array();
 118     $rest = 0;
 119     foreach(preg_split("/(\r?\n)/", $stream_info) as $line) {
 120         printf("LINE: [%s]\n", $line);
 121         if ($check_post) {
 122             if (!isset($header['The-Request'])) {
 123                 return FALSE;
 124             }
 125             $req = explode(" ", $header['The-Request']);
 126             $method = $req[0];
 127
 128             if (isset($header['Cookie'])) {
 129                 $cookies = explode(";", $header['Cookie']);
 130                 for ($i = 0 ; $i < count($cookies) ; $i++) {
 131                     $nameval = explode("=", trim($cookies[$i]));
 132                     if (count($nameval) != 2) {
 133                         printf("WARNING: malformat cookie element [%s]\n", $cookies[$i]);
 134                         continue;
 135                     }
 136                     $cookie[$nameval[0]] = urldecode($nameval[1]);
 137                 }
 138             }
 139             // GET params management
 140             $get_vars = explode('?', $req[1], 2);
 141             $path = $get_vars[0];
 142             if (count($get_vars) > 1) {
 143                 $a = explode('&', $get_vars[1]);
 144                 printf("A COUNT: [%s] %d\n", $a[0], count($a));
 145                 for ($i = 0 ; $i < count($a) ; $i++) {
 146                     $b = explode('=', $a[$i]);
 147                     $get[$b[0]] = urldecode($b[1]);
 148                 }
 149             }
 150             // POST params management
 151             if ($req[0] == 'POST') {
 152                 $conttype_all = explode(";", $header['Content-Type']);
 153                 $header['Content-Type'] = $conttype_all[0];
 154                 // $path_all[1-] other things like charset and so on
 155
 156                 // if (content-type is wrong || content-length isn't set)
 157                 //     return false
 158
 159                 if ($header['Content-Type'] != 'application/x-www-form-urlencoded'
 160                     || !isset($header['Content-Length'])) {
 161                     return FALSE;
 162                 }
 163                 $post_len = mb_strlen($line, "ASCII");
 164                 printf("INFO: postlen: %d\n", $post_len);
 165                 $rest = (int)($header['Content-Length']) - $post_len;
 166
 167                 if ($rest == 0) {
 168                     post_manage($post, $line);
 169                 }
 170                 else {
 171                     $cont = $line;
 172                 }
 173             }
 174             break;
 175         }
 176         if ($line == "") {
 177             $check_post = TRUE;
 178             continue;
 179         }
 180         $split = explode(":", $line, 2);
 181         $header[$split[0]] = $split[1];
 182     }
 183     return $path;
 184 }
 185
 186 function gpcs_var($name, $get, $post, $cookie)
 187 {
 188     if (isset($GLOBALS[$name]))
 189         return FALSE;
 190     else if (isset($cookie[$name]))
 191         return ($cookie[$name]);
 192     else if (isset($post[$name]))
 193         return ($post[$name]);
 194     else if (isset($get[$name]))
 195         return ($get[$name]);
 196
 197     return FALSE;
 198 }
 199
 200 function headers_render($header, $len)
 201 {
 202     $cookies = "";
 203
 204     if (isset($header['cookies'])) {
 205         $cookies = $header['cookies']->render();
 206         unset($header['cookies']);
 207     }
 208     if (isset($header['Location'])) {
 209         $s = sprintf("HTTP/1.1 302 OK\r\n%sLocation: %s\r\n", $cookies, $header['Location']);
 210     }
 211     else if (isset($header['HTTP-Response'])) {
 212         $s = sprintf("HTTP/1.1 %s\r\n", $header['HTTP-Response']);
 213     }
 214     else {
 215         $s = "HTTP/1.1 200 OK\r\n";
 216
 217         if (!isset($header['Date']))
 218             $s .= sprintf("Date: %s\r\n", date(DATE_RFC822));
 219         if (!isset($header['Connection']))
 220             $s .= "Connection: close\r\n";
 221         if (!isset($header['Content-Type']))
 222             $s .= "Content-Type: text/html\r\n";
 223         foreach($header as $key => $value) {
 224             $s .= sprintf("%s: %s\r\n", $key, $value);
 225         }
 226         if ($len >= 0) {
 227             $s .= sprintf("Content-Length: %d\r\n", $len);
 228         }
 229         else {
 230             $s .= "Cache-Control: no-cache, must-revalidate\r\n";
 231             $s .= "Expires: Mon, 26 Jul 1997 05:00:00 GMT\r\n";
 232             if (!isset($header['Content-Encoding'])) {
 233                 $s .= "Content-Encoding: chunked\r\n";
 234             }
 235             $s .= "Transfer-Encoding: chunked\r\n";
 236         }
 237         $s .= $cookies;
 238     }
 239     $s .= "\r\n";
 240
 241     return ($s);
 242 }
 243
 244 /*
 245  *  Caching system using ob php system to cache old style pages
 246  *  to a var and than send it with more calm
 247  */
 248
 249 function shutta()
 250 {
 251   log_rd2("SHUTTA [".connection_status()."] !");
 252 }
 253
 254 register_shutdown_function('shutta');
 255
 256 /*
 257  *  MAIN
 258  */
 259
 260 function chunked_content($zls, $content)
 261 {
 262     if ($zls) {
 263         $cont_comp = $zls->compress_chunk($content);
 264     }
 265     else {
 266         $cont_comp = $content;
 267     }
 268     $cont_comp_l = mb_strlen($cont_comp, "ASCII");
 269     // printf("CHUNK: [%s]\n", $content);
 270
 271     return (sprintf("%X\r\n", $cont_comp_l).$cont_comp."\r\n");
 272 }
 273
 274 function chunked_fini()
 275 {
 276     return sprintf("0\r\n");
 277 }
 278
 279 function get_encoding($header)
 280 {
 281     $enc = "plain";
 282     if (isset($header['Accept-Encoding'])) {
 283         $acc = explode(',', $header['Accept-Encoding']);
 284
 285         if (array_search('gzip', $acc) !== FALSE) {
 286             $enc = 'gzip';
 287         }
 288         else if (array_search('deflate', $acc) !== FALSE) {
 289             $enc = 'deflate';
 290         }
 291     }
 292
 293     return ($enc);
 294 }
 295
 296 class Cookie {
 297     var $attr;
 298     // Set-Cookie: reg_fb_gate=deleted; Expires=Thu, 01-Jan-1970 00:00:01 GMT; Path=/; Domain=.foo.com; HttpOnly
 299     // string $name  [, string $value  [, int $expire = 0  [, string $path  [, string $domain  [, bool $secure = false  [, bool $httponly = false  ]]]]]] )
 300     function Cookie()
 301     {
 302         $this->attr = array();
 303     }
 304
 305     static function create($name)
 306     {
 307         $thiz = new Cookie();
 308
 309         $thiz->attr[$name] = "";
 310
 311         $argc = func_num_args();
 312         for ($i = 1 ; $i < $argc ; $i++) {
 313             $arg = func_get_arg($i);
 314             switch ($i) {
 315             case 1:
 316                 $thiz->attr[$name] = urlencode($arg);
 317                 break;
 318             case 2:
 319                 $thiz->attr['Expires'] = gmdate('D, d M Y H:i:s \G\M\T', $arg); // RFC 1211 format
 320                 break;
 321             case 3:
 322                 $thiz->attr['Path'] = $arg;
 323                 break;
 324             case 4:
 325                 $thiz->attr['Domain'] = $arg;
 326                 break;
 327             case 5:
 328                 if ($arg == TRUE) {
 329                     $thiz->attr['Secure'] = NULL;
 330                 }
 331                 break;
 332             case 6:
 333                 if ($arg == TRUE) {
 334                     $thiz->attr['HttpOnly'] = NULL;
 335                 }
 336                 break;
 337             default:
 338                 return FALSE;
 339             }
 340         }
 341
 342         return $thiz;
 343     }
 344
 345     function render()
 346     {
 347         $r = "Set-Cookie: ";
 348         $isfirst = TRUE;
 349
 350         foreach ($this->attr as $k => $v) {
 351             if ($v == NULL) {
 352                 $r .= sprintf("%s%s", ($isfirst ? "" : "; "), $k);
 353             }
 354             else {
 355                 $r .= sprintf("%s%s=%s", ($isfirst ? "" : "; "), $k, $v);
 356             }
 357             $isfirst = FALSE;
 358         }
 359         $r .= "\r\n";
 360
 361         return $r;
 362     }
 363 }
 364
 365 class Cookies {
 366     var $cookies;
 367
 368     function Cookies()
 369     {
 370         $this->cookies = array();
 371     }
 372
 373     function add($name)
 374     {
 375         if (($cookie = call_user_func_array("Cookie::create", func_get_args())) == FALSE)
 376             return (FALSE);
 377
 378         array_push($this->cookies, $cookie);
 379
 380         return (TRUE);
 381     }
 382
 383     function render()
 384     {
 385         $r = "";
 386         foreach ($this->cookies as $cookie) {
 387             $r .= $cookie->render();
 388         }
 389
 390         return ($r);
 391     }
 392 }
 393
 394
 395 class Sac_a_push {
 396     // maybe fixed_fd is unuseful
 397     static $fixed_fd = 3;
 398     static $cnt_master = NULL;
 399     static $cnt_slave  = NULL;
 400
 401     var $file_socket;
 402     var $unix_socket;
 403     var $socks;
 404     var $s2u;             // user associated with input socket
 405     var $s2p;             // pending page associated with input socket
 406     var $pending_pages;
 407
 408     var $list;
 409     var $in;
 410
 411     var $debug;
 412     var $blocking_mode;
 413
 414     var $app;
 415
 416     var $curtime;
 417
 418     var $rndstr;
 419     var $main_loop;
 420
 421     function Sac_a_push()
 422     {
 423     }
 424
 425     function sig_handler($sig)
 426     {
 427         switch ($sig) {
 428         case SIGINT:
 429             exit(1);
 430             break;
 431         case SIGTERM:
 432             if (static::$cnt_master != NULL) {
 433                     fwrite(static::$cnt_master, "\nshutdown\n");
 434                     fflush(static::$cnt_master);
 435             }
 436             else {
 437                 exit(1);
 438             }
 439             break;
 440         case SIGHUP:
 441             if (static::$cnt_master != NULL) {
 442                 fwrite(static::$cnt_master, "\nreload\n");
 443                 fflush(static::$cnt_master);
 444             }
 445             break;
 446         }
 447     }
 448
 449     static function create(&$app, $sockname, $debug, $blocking_mode)
 450     {
 451         $thiz = new Sac_a_push();
 452
 453         $thiz->app = $app;
 454         $thiz->file_socket = $sockname;
 455         $thiz->unix_socket = "unix://$sockname";
 456         $thiz->debug = $debug;
 457         $thiz->socks = array();
 458         $thiz->s2u  = array();
 459         $thiz->s2p  = array();
 460         $thiz->pending_pages = array();
 461
 462         // create a couple of sockets for control management
 463         if (($sockpair = stream_socket_pair(STREAM_PF_UNIX, STREAM_SOCK_STREAM,
 464                                             STREAM_IPPROTO_IP)) == FALSE) {
 465             return FALSE;
 466         }
 467         static::$cnt_master = $sockpair[0];
 468         static::$cnt_slave  = $sockpair[1];
 469
 470         pcntl_signal(SIGTERM, array("Sac_a_push", "sig_handler"));
 471         pcntl_signal(SIGINT, array("Sac_a_push", "sig_handler"));
 472         pcntl_signal(SIGHUP, array("Sac_a_push", "sig_handler"));
 473
 474         $thiz->blocking_mode = 0; // 0 for non-blocking
 475
 476         $thiz->rndstr = "";
 477         for ($i = 0 ; $i < 4096 ; $i++) {
 478             if (($i % 128) == 0)
 479                 $thiz->rndstr .= " ";
 480             else
 481                 $thiz->rndstr .= chr(mt_rand(65, 90));
 482         }
 483
 484         if (file_exists($thiz->file_socket)) {
 485             unlink($thiz->file_socket);
 486         }
 487
 488         $old_umask = umask(0);
 489         if (($thiz->list = stream_socket_server($thiz->unix_socket, $err, $errs)) === FALSE) {
 490             return (FALSE);
 491         }
 492         umask($old_umask);
 493         stream_set_blocking($thiz->list, $thiz->blocking_mode); # Set the stream to non-blocking
 494
 495         if (($thiz->in = fopen("php://stdin", "r")) === FALSE) {
 496             return(FALSE);
 497         }
 498
 499         $thiz->main_loop = FALSE;
 500
 501         return ($thiz);
 502     }
 503
 504     function socks_set($sock, $user, $pendpage)
 505     {
 506         $id = intval($sock);
 507
 508         $this->socks[$id] = $sock;
 509         if ($user != NULL)
 510             $this->s2u[$id]   = $user;
 511         if ($pendpage != NULL)
 512             $this->s2p[$id]   = $pendpage;
 513     }
 514
 515     function socks_unset($sock)
 516     {
 517         $id = intval($sock);
 518
 519         if (isset($this->s2u[$id]))
 520             unset($this->s2u[$id]);
 521         if (isset($this->s2p[$id]))
 522             unset($this->s2p[$id]);
 523         unset($this->socks[$id]);
 524     }
 525
 526     function pendpage_try_addcont(&$new_socket, $tout, $method, $header, $get, $post, $cookie, $path, $addr, $rest, $cont)
 527     {
 528         $pendpage = PendingPage::pendingpage_continue(&$new_socket, $this->curtime, $tout, $method,
 529                                                            $header,           $get, $post, $cookie,
 530                                                              $path,          $addr, $rest, $cont);
 531
 532         $pendpage->try_flush($this->curtime);
 533         // Add $pendpage to the pendpage array (in any case)
 534         fprintf(STDERR, "IMPORTANT: Pendadd: %d\n", $pendpage->status);
 535         $this->pendpage_add($pendpage);
 536     }
 537
 538     function pendpage_try_addflush(&$new_socket, $tout, $enc, $header_out, $content)
 539     {
 540         $pendpage = PendingPage::pendingpage_flushing($new_socket, $this->curtime, $tout, $enc, $header_out, $content);
 541
 542         if ($pendpage->try_flush($this->curtime) == FALSE) {
 543             // Add $pendpage to the pendpage array
 544             $this->pendpage_add($pendpage);
 545         }
 546     }
 547
 548     function pendpage_add($pendpage)
 549     {
 550         array_push($this->pending_pages, $pendpage);
 551         $this->socks_set($pendpage->socket_get(), NULL, $pendpage);
 552     }
 553
 554     function pendpage_rem($pendpage)
 555     {
 556         $sock = $pendpage->socket_get();
 557         if (($key = array_search($pendpage, $this->pending_pages)) !== FALSE) {
 558             unset($this->pending_pages[$key]);
 559         }
 560         else {
 561             fprintf(STDERR, "WARNING: pendpage not found\n");
 562         }
 563         $this->socks_unset($sock);
 564         fprintf(STDERR, "PP_REM: %d\n", intval($sock));
 565     }
 566
 567
 568     function pendpage_try_addwait(&$new_socket, $tout, $method, $header, $get, $post, $cookie, $path, $addr, $rest, $cont)
 569     {
 570         $pendpage = PendingPage::pendingpage_waiting($new_socket, $this->curtime, $tout, $method, $header, $get, $post, $cookie, $path, $addr, $rest, $cont);
 571         /*
 572         if ($pendpage->try_flush($this->curtime) == FALSE) {
 573             // Add $pendpage to the pendpage array
 574             */
 575         $this->pendpage_add($pendpage);
 576         /*
 577         }
 578         */
 579     }
 580
 581     function garbage_manager($force)
 582     {
 583         $this->app->garbage_manager($force);
 584
 585         foreach ($this->socks as $k => $sock) {
 586             $id = intval($sock);
 587             if (isset($this->s2u[$id])) {
 588                 if ($this->s2u[$id]->sess == '') {
 589                     if ($this->s2u[$id]->rd_socket_get() != NULL) {
 590                         $this->s2u[$id]->rd_socket_set(NULL);
 591                     }
 592                     unset($this->socks[$id]);
 593                     unset($this->s2u[$id]);
 594                     fclose($sock);
 595                     printf("CLOSE ON GARBAGE MANAGER\n");
 596                 }
 597             }
 598         }
 599     }
 600
 601     function run()
 602     {
 603         GLOBAL $DOCUMENT_ROOT, $HTTP_HOST;
 604
 605         GLOBAL $G_alarm_passwd, $G_black_list, $G_btrace_pref_sub, $G_dbauth;
 606         GLOBAL $G_dbpfx, $G_donors_all, $G_donors_cur, $G_is_local, $G_lang;
 607         GLOBAL $G_poll_entries, $G_poll_name, $G_poll_title, $G_proxy_white_list;
 608         GLOBAL $G_room_roadmap, $G_shutdown, $G_sidebanner, $G_sidebanner2;
 609         GLOBAL $G_splash_content, $G_splash_contents, $G_splash_cont_idx;
 610         GLOBAL $G_splash_h, $G_splash_idx, $G_splash_interval, $G_splash_timeout;
 611         GLOBAL $G_splash_w, $G_topbanner, $G_with_donors, $G_with_poll;
 612         GLOBAL $G_with_sidebanner, $G_with_sidebanner2, $G_with_splash;
 613         GLOBAL $G_with_topbanner;
 614
 615         if ($this->main_loop) {
 616             return (FALSE);
 617         }
 618
 619         $this->main_loop = TRUE;
 620
 621         while ($this->main_loop) {
 622             $this->curtime = time();
 623             fprintf(STDERR, "IN LOOP: Current opened: %d  pending_pages: %d\n", count($this->socks), count($this->pending_pages));
 624
 625             /* Prepare the read array */
 626             /* // when we manage it ... */
 627             /* if ($shutdown)  */
 628             /*     $read   = array_merge(array("$in" => $in), $socks); */
 629             /* else */
 630             $read   = array_merge(array(intval($this->list) => $this->list, intval($this->in) => $this->in,
 631                                         intval(static::$cnt_slave) => static::$cnt_slave),
 632                                   $this->socks);
 633
 634             if ($this->debug > 1) {
 635                 printf("PRE_SELECT\n");
 636                 print_r($read);
 637             }
 638             $write  = NULL;
 639             $except = NULL;
 640             $num_changed_sockets = @stream_select($read, $write, $except, 0, 500000);
 641
 642             if ($num_changed_sockets == 0) {
 643                 printf(" no data in 5 secs, splash [%d]\n", $G_with_splash);
 644             }
 645             else if ($num_changed_sockets > 0) {
 646                 printf("num sock %d num_of_socket: %d\n", $num_changed_sockets, count($read));
 647                 if ($this->debug > 1) {
 648                     print_r($read);
 649                 }
 650                 /* At least at one of the sockets something interesting happened */
 651                 foreach ($read as $i => $sock) {
 652                     $id = intval($sock);
 653                     $manage_page = FALSE;
 654                     /* is_resource check is required because there is the possibility that
 655                        during new request an old connection is closed */
 656                     if (!is_resource($sock)) {
 657                         continue;
 658                     }
 659                     if ($sock === $this->list) {
 660                         printf("NUOVA CONNEX\n");
 661                         if (($new_unix = stream_socket_accept($this->list)) == FALSE) {
 662                             printf("SOCKET_ACCEPT FAILED\n");
 663                             continue;
 664                         }
 665                         $stream_info = "";
 666                         $method      = "";
 667                         $get         = array();
 668                         $post        = array();
 669                         $cookie      = array();
 670                         $rest        = 0;
 671                         $cont        = "";
 672                         if (($new_socket = ancillary_getstream($new_unix, $stream_info)) !== FALSE) {
 673                             printf("NEW_SOCKET: %d\n", intval($new_socket));
 674                             stream_set_blocking($new_socket, $this->blocking_mode); // Set the stream to non-blocking
 675                             printf("RECEIVED HEADER:\n%s", $stream_info);
 676                             if (($path = spu_process_info($stream_info, $method, $header,
 677                                                           $get, $post, $cookie, $rest, $cont))
 678                                 == FALSE) {
 679                                 fprintf(STDERR, "TODO: fix wrong header management\n");
 680                             }
 681                             $addr = stream_socket_get_name($new_socket, TRUE);
 682                             printf("PATH: [%s]\n", $path);
 683                             if ($method == "POST" && $rest > 0) {
 684                                 if (isset($header['Expect']) && $header['Expect'] == '100-continue') {
 685                                     fprintf(STDERR, "\nPOSTA DE CHE\n\n");
 686                                     $this->pendpage_try_addcont($new_socket, 20,
 687                                                                 $method, $header, $get, $post, $cookie,
 688                                                                 $path, $addr, $rest, $cont);
 689                                 }
 690                                 else {
 691                                     $this->pendpage_try_addwait($new_socket, 20,
 692                                                                 $method, $header, $get, $post, $cookie,
 693                                                                 $path, $addr, $rest, $cont);
 694                                 }
 695                             }
 696                             else {
 697                                 $manage_page = TRUE;
 698                             }
 699
 700                             printf("number of sockets after %d\n", count($this->socks));
 701                         }
 702                         else {
 703                             printf("WARNING: ancillary_getstream failed\n");
 704                         }
 705                     }
 706                     else {
 707                         $buf = fread($sock, 4096);
 708                         // if socket is closed
 709                         if ($buf == FALSE || mb_strlen($buf, "ASCII") == 0) {
 710                             // close socket case
 711                             if ($buf == FALSE) {
 712                                 printf("ERROR READING\n");
 713                             }
 714                             if ($sock === $this->list) {
 715                                 printf("Arrivati %d bytes da list\n", mb_strlen($buf, "ASCII"));
 716                                 return(21);
 717                             }
 718                             else if ($sock === $this->in || $sock === static::$cnt_slave) {
 719                                 printf("Arrivati %d bytes da stdin\n", mb_strlen($buf, "ASCII"));
 720                                 return(22);
 721                             }
 722                             else {
 723                                 unset($this->socks[$id]);
 724                                 if (isset($this->s2u[$id])) {
 725                                     // $user_a[$s2u[$id]]->disable();
 726                                     if ($this->s2u[$id]->rd_socket_get() != NULL) {
 727                                         $this->s2u[$id]->rd_socket_set(NULL);
 728                                     }
 729                                     unset($this->s2u[$id]);
 730                                 }
 731                             }
 732                             fclose($sock);
 733                             printf("CLOSE ON READ\n");
 734
 735                             if ($this->debug > 1) {
 736                                 printf("post unset\n");
 737                                 print_r($this->socks);
 738                             }
 739                         }
 740                         else {
 741                             if ($this->debug > 1) {
 742                                 print_r($read);
 743                             }
 744                             if ($sock === $this->list) {
 745                                 printf("Arrivati %d bytes da list\n", mb_strlen($buf, "ASCII"));
 746                             }
 747                             else if ($sock === $this->in || $sock === static::$cnt_slave) {
 748                                 printf("Arrivati %d bytes da stdin\n", mb_strlen($buf, "ASCII"));
 749                                 $line = trim($buf);
 750                                 if ($line == "reload") {
 751                                     require("$DOCUMENT_ROOT/Etc/".BRISK_CONF);
 752
 753                                     global_dump();
 754                                 }
 755                                 else if ($line == "shutdown") {
 756                                     if ($this->app->dump_data()) {
 757                                         return(0);
 758                                     }
 759                                     else {
 760                                         return(1);
 761                                     }
 762                                 }
 763                             }
 764                             else {
 765                                 $key = array_search("$sock", $this->socks);
 766                                 fprintf(STDERR, "Arrivati %d bytes dalla socket n. %d\n", mb_strlen($buf, "ASCII"), $key);
 767                                 if (isset($this->s2p[$id])) {
 768                                     $this->s2p[$id]->rest -= mb_strlen($buf, "ASCII");
 769                                     $this->s2p[$id]->cont .= $buf;
 770                                     if ($this->s2p[$id]->rest <= 0) {
 771                                         $header = $new_socket = $path = $addr = $get = $cookie = 0;
 772                                         $post = array();
 773
 774                                         $this->s2p[$id]->context_get($header, $new_socket, $path, $addr, $get, $post, $cookie);
 775                                         $this->pendpage_rem($this->s2p[$id]);
 776                                         fprintf(STDERR, "SOCKET RUN: %s\n", $new_socket);
 777
 778                                         $manage_page = TRUE;
 779                                     }
 780                                 }
 781                             }
 782                         }
 783                     }
 784
 785                     if ($manage_page == TRUE) {
 786                         printf("M: %s\nHEADER:\n", $method);
 787                         print_r($header);
 788                         printf("GET:\n");
 789                         print_r($get);
 790                         printf("POST:\n");
 791                         print_r($post);
 792                         printf("COOKIE:\n");
 793                         print_r($cookie);
 794
 795                         $header_out = array();
 796                         // TODO: MOVE DOWN request_mgr to factorize new_sockets and POST closed
 797                         $rret = FALSE;
 798                         if (!strncmp($path, SITE_PREFIX, SITE_PREFIX_LEN)) {
 799                             $rret = $this->app->request_mgr($this, $header, $header_out, $new_socket, substr($path, SITE_PREFIX_LEN), $addr, $get, $post, $cookie);
 800                         }
 801                         fprintf(STDERR, "\n\n DI QUI PASSA [%s]\n\n", $rret);
 802                         if ($rret == FALSE) {
 803                             // FIXME: manage 404 !!!
 804                             printf("TODO: fix unknown page\n");
 805                         }
 806                     }
 807                 }
 808             }
 809
 810             $this->garbage_manager(FALSE);
 811
 812             /* manage unfinished pages */
 813             foreach ($this->pending_pages as $k => $pendpage) {
 814                 // TODO: try_flush if exists in the class
 815                 if ($pendpage->try_flush($this->curtime) == TRUE) {
 816                     unset($this->pending_pages[$k]);
 817                 }
 818             }
 819
 820             /*
 821                $response:                        raw stream data not sent
 822                $content:                         html consistent data (<script bla bla>)
 823                $user->stream_keepalive($w_ping)  ping srv->cli OR srv->cli + cli->srv if $w_ping == TRUE
 824             */
 825
 826             /* manage open streaming */
 827             foreach ($this->socks as $k => $sock) {
 828                 $id = intval($sock);
 829                 if (isset($this->s2u[$id])) {
 830                     $user = $this->s2u[$id];
 831                     $response = $user->rd_cache_get();
 832                     $do_ping = FALSE;
 833                     if (($this->curtime - $user->lacc) > (EXPIRE_TIME_RD / 3)) {
 834                         $do_ping = TRUE;
 835                     }
 836                     else {
 837                         $user->ping_req = FALSE;
 838                     }
 839
 840                     if ($response == "") {
 841                         $content = "";
 842                         $user->stream_main($content, $get, $post, $cookie);
 843                         printf("[%s] [%d] [%d]\n", $user->name, $user->lacc, $this->curtime);
 844                         if ($do_ping && $user->ping_req == FALSE) {
 845                             $content .= $user->stream_keepalive(TRUE);
 846                             $user->ping_req = TRUE;
 847                         }
 848                         else if ($content == "" && $user->rd_kalive_is_expired($this->curtime)) {
 849                             $content = $user->stream_keepalive(FALSE);
 850                         }
 851                         if ($content != "") {
 852                             $response = chunked_content($user->rd_zls_get(), $content);
 853                         }
 854                     }
 855
 856                     if ($response != "") {
 857                         // echo "SPIA: [".substr($response, 0, 60)."...]\n";
 858                         // echo "SPIA: [".$response."]\n";
 859                         $response_l = mb_strlen($response, "ASCII");
 860                         $wret = @fwrite($sock, $response);
 861                         if ($wret < $response_l) {
 862                             printf("TROUBLE WITH FWRITE: %d\n", $wret);
 863                             $user->rd_cache_set(mb_substr($response, $wret, $response_l - $wret, "ASCII"));
 864                         }
 865                         else {
 866                             $user->rd_cache_set("");
 867                         }
 868                         fflush($sock);
 869                         $user->rd_kalive_reset($this->curtime);
 870                     }
 871
 872                     // close socket after a while to prevent client memory consumption
 873                     if ($user->rd_endtime_is_expired($this->curtime)) {
 874                         if ($this->s2u[$id]->rd_socket_get() != NULL) {
 875                             $this->s2u[$id]->rd_socket_set(NULL);
 876                         }
 877                         unset($this->socks[$id]);
 878                         unset($this->s2u[$id]);
 879                         fclose($sock);
 880                         printf("CLOSE ON LOOP\n");
 881                     }
 882                 }
 883             }  // foreach ($this->socks...
 884             printf("\n");
 885         }  // while (...
 886     }  // function run(...
 887 }
 888
 889 ?>