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($fname);
  93     }
  94 }
  95
  96 function spu_process_info($stream_info, $method, &$header, &$get, &$post, &$cookie)
  97 {
  98     $check_post = FALSE;
  99     $header = array();
 100     $get = array();
 101     $post = array();
 102     foreach(preg_split("/(\r?\n)/", $stream_info) as $line) {
 103         // printf("LINE: [%s]\n", $line);
 104         if ($check_post) {
 105             if (!isset($header['The-Request'])) {
 106                 return FALSE;
 107             }
 108             $req = explode(" ", $header['The-Request']);
 109             $method = $req[0];
 110
 111             if (isset($header['Cookie'])) {
 112                 $cookies = explode(";", $header['Cookie']);
 113                 for ($i = 0 ; $i < count($cookies) ; $i++) {
 114                     $nameval = explode("=", trim($cookies[$i]));
 115                     if (count($nameval) != 2) {
 116                         printf("WARNING: malformat cookie element [%s]\n", $cookies[$i]);
 117                         continue;
 118                     }
 119                     $cookie[$nameval[0]] = urldecode($nameval[1]);
 120                 }
 121             }
 122             // GET params management
 123             $get_vars = explode('?', $req[1], 2);
 124             $path =   $get_vars[0];
 125             if (count($get_vars) > 1) {
 126                 $a = explode('&', $get_vars[1]);
 127                 printf("A COUNT: [%s] %d\n", $a[0], count($a));
 128                 for ($i = 0 ; $i < count($a) ; $i++) {
 129                     $b = explode('=', $a[$i]);
 130                     $get[$b[0]] = urldecode($b[1]);
 131                 }
 132             }
 133             // POST params management
 134             if ($req[0] == 'POST') {
 135                 if ($header['Content-Type'] != 'application/x-www-form-urlencoded'
 136                     || !isset($header['Content-Length'])) {
 137                     return FALSE;
 138                 }
 139                 $post_len = mb_strlen($line, "latin1");
 140                 $a = explode('&', $line);
 141                 for ($i = 0 ; $i < count($a) ; $i++) {
 142                     $b = explode('=', $a[$i]);
 143                     $post[$b[0]] = urldecode($b[1]);
 144                 }
 145                 printf("INFO: postlen: %d\n", $post_len);
 146             }
 147             break;
 148         }
 149         if ($line == "") {
 150             $check_post = TRUE;
 151             continue;
 152         }
 153         $split = explode(":", $line, 2);
 154         $header[$split[0]] = $split[1];
 155     }
 156     return $path;
 157 }
 158
 159 function gpcs_var($name, $get, $post, $cookie)
 160 {
 161     if (isset($GLOBALS[$name]))
 162         return FALSE;
 163     else if (isset($cookie[$name]))
 164         return ($cookie[$name]);
 165     else if (isset($post[$name]))
 166         return ($post[$name]);
 167     else if (isset($get[$name]))
 168         return ($get[$name]);
 169
 170     return FALSE;
 171 }
 172
 173 function headers_render($header, $len)
 174 {
 175     $cookies = "";
 176
 177     if (isset($header['cookies'])) {
 178         $cookies = $header['cookies']->render();
 179         unset($header['cookies']);
 180     }
 181     if (isset($header['Location'])) {
 182         $s = sprintf("HTTP/1.1 302 OK\r\n%sLocation: %s\r\n", $cookies, $header['Location']);
 183     }
 184     else {
 185         $s = "HTTP/1.1 200 OK\r\n";
 186
 187         if (!isset($header['Date']))
 188             $s .= sprintf("Date: %s\r\n", date(DATE_RFC822));
 189         if (!isset($header['Connection']))
 190             $s .= "Connection: close\r\n";
 191         if (!isset($header['Content-Type']))
 192             $s .= "Content-Type: text/html\r\n";
 193         foreach($header as $key => $value) {
 194             $s .= sprintf("%s: %s\r\n", $key, $value);
 195         }
 196         if ($len >= 0) {
 197             $s .= sprintf("Content-Length: %d\r\n", $len);
 198         }
 199         else {
 200             $s .= "Cache-Control: no-cache, must-revalidate\r\n";
 201             $s .= "Expires: Mon, 26 Jul 1997 05:00:00 GMT\r\n";
 202             if (!isset($header['Content-Encoding'])) {
 203                 $s .= "Content-Encoding: chunked\r\n";
 204             }
 205             $s .= "Transfer-Encoding: chunked\r\n";
 206         }
 207         $s .= $cookies;
 208     }
 209     $s .= "\r\n";
 210
 211     return ($s);
 212 }
 213
 214 /*
 215  *  Caching system using ob php system to cache old style pages
 216  *  to a var and than send it with more calm
 217  */
 218
 219 function shutta()
 220 {
 221   log_rd2("SHUTTA [".connection_status()."] !");
 222 }
 223
 224 register_shutdown_function('shutta');
 225
 226 /*
 227  *  MAIN
 228  */
 229
 230 function chunked_content($zls, $content)
 231 {
 232     if ($zls) {
 233         $cont_comp = $zls->compress_chunk($content);
 234     }
 235     else {
 236         $cont_comp = $content;
 237     }
 238     $cont_comp_l = mb_strlen($cont_comp, "ASCII");
 239     printf("CHUNK: [%s]\n", $content);
 240
 241     return (sprintf("%X\r\n", $cont_comp_l).$cont_comp."\r\n");
 242 }
 243
 244 function chunked_fini()
 245 {
 246     return sprintf("0\r\n");
 247 }
 248
 249 function get_encoding($header)
 250 {
 251     $enc = "plain";
 252     if (isset($header['Accept-Encoding'])) {
 253         $acc = explode(',', $header['Accept-Encoding']);
 254
 255         if (array_search('gzip', $acc) !== FALSE) {
 256             $enc = 'gzip';
 257         }
 258         else if (array_search('deflate', $acc) !== FALSE) {
 259             $enc = 'deflate';
 260         }
 261     }
 262
 263     return ($enc);
 264 }
 265
 266 class Cookie {
 267     var $attr;
 268     // Set-Cookie: reg_fb_gate=deleted; Expires=Thu, 01-Jan-1970 00:00:01 GMT; Path=/; Domain=.foo.com; HttpOnly
 269     // string $name  [, string $value  [, int $expire = 0  [, string $path  [, string $domain  [, bool $secure = false  [, bool $httponly = false  ]]]]]] )
 270     function Cookie()
 271     {
 272         $this->attr = array();
 273     }
 274
 275     static function create($name)
 276     {
 277         $thiz = new Cookie();
 278
 279         $thiz->attr[$name] = "";
 280
 281         $argc = func_num_args();
 282         for ($i = 1 ; $i < $argc ; $i++) {
 283             $arg = func_get_arg($i);
 284             switch ($i) {
 285             case 1:
 286                 $thiz->attr[$name] = urlencode($arg);
 287                 break;
 288             case 2:
 289                 $thiz->attr['Expires'] = gmdate('D, d M Y H:i:s \G\M\T', $arg); // RFC 1211 format
 290                 break;
 291             case 3:
 292                 $thiz->attr['Path'] = $arg;
 293                 break;
 294             case 4:
 295                 $thiz->attr['Domain'] = $arg;
 296                 break;
 297             case 5:
 298                 if ($arg == TRUE) {
 299                     $thiz->attr['Secure'] = NULL;
 300                 }
 301                 break;
 302             case 6:
 303                 if ($arg == TRUE) {
 304                     $thiz->attr['HttpOnly'] = NULL;
 305                 }
 306                 break;
 307             default:
 308                 return FALSE;
 309             }
 310         }
 311
 312         return $thiz;
 313     }
 314
 315     function render()
 316     {
 317         $r = "Set-Cookie: ";
 318         $isfirst = TRUE;
 319
 320         foreach ($this->attr as $k => $v) {
 321             if ($v == NULL) {
 322                 $r .= sprintf("%s%s", ($isfirst ? "" : "; "), $k);
 323             }
 324             else {
 325                 $r .= sprintf("%s%s=%s", ($isfirst ? "" : "; "), $k, $v);
 326             }
 327             $isfirst = FALSE;
 328         }
 329         $r .= "\r\n";
 330
 331         return $r;
 332     }
 333 }
 334
 335 class Cookies {
 336     var $cookies;
 337
 338     function Cookies()
 339     {
 340         $this->cookies = array();
 341     }
 342
 343     function add($name)
 344     {
 345         if (($cookie = call_user_func_array("Cookie::create", func_get_args())) == FALSE)
 346             return (FALSE);
 347
 348         array_push($this->cookies, $cookie);
 349
 350         return (TRUE);
 351     }
 352
 353     function render()
 354     {
 355         $r = "";
 356         foreach ($this->cookies as $cookie) {
 357             $r .= $cookie->render();
 358         }
 359
 360         return ($r);
 361     }
 362 }
 363
 364
 365 class Sac_a_push {
 366     // maybe fixed_fd is unuseful
 367     static $fixed_fd = 3;
 368     static $cnt_master = NULL;
 369     static $cnt_slave  = NULL;
 370
 371     var $file_socket;
 372     var $unix_socket;
 373     var $socks;
 374     var $s2u;
 375     var $pages_flush;
 376
 377     var $list;
 378     var $in;
 379
 380     var $debug;
 381     var $blocking_mode;
 382
 383     var $app;
 384
 385     var $curtime;
 386
 387     var $rndstr;
 388     var $main_loop;
 389
 390     function Sac_a_push()
 391     {
 392     }
 393
 394     function sig_handler($sig)
 395     {
 396         switch ($sig) {
 397         case SIGINT:
 398             exit(1);
 399             break;
 400         case SIGTERM:
 401             if (static::$cnt_master != NULL) {
 402                     fwrite(static::$cnt_master, "\nshutdown\n");
 403                     fflush(static::$cnt_master);
 404             }
 405             else {
 406                 exit(1);
 407             }
 408             break;
 409         case SIGHUP:
 410             if (static::$cnt_master != NULL) {
 411                 fwrite(static::$cnt_master, "\nreload\n");
 412                 fflush(static::$cnt_master);
 413             }
 414             break;
 415         }
 416     }
 417
 418     static function create(&$app, $sockname, $debug, $blocking_mode)
 419     {
 420         $thiz = new Sac_a_push();
 421
 422         $thiz->app = $app;
 423         $thiz->file_socket = $sockname;
 424         $thiz->unix_socket = "unix://$sockname";
 425         $thiz->debug = $debug;
 426         $thiz->socks = array();
 427         $thiz->s2u  = array();
 428         $thiz->pages_flush = array();
 429
 430         // create a couple of sockets for control management
 431         if (($sockpair = stream_socket_pair(STREAM_PF_UNIX, STREAM_SOCK_STREAM,
 432                                             STREAM_IPPROTO_IP)) == FALSE) {
 433             return FALSE;
 434         }
 435         static::$cnt_master = $sockpair[0];
 436         static::$cnt_slave  = $sockpair[1];
 437
 438         pcntl_signal(SIGTERM, array("Sac_a_push", "sig_handler"));
 439         pcntl_signal(SIGINT, array("Sac_a_push", "sig_handler"));
 440         pcntl_signal(SIGHUP, array("Sac_a_push", "sig_handler"));
 441
 442         $thiz->blocking_mode = 0; // 0 for non-blocking
 443
 444         $thiz->rndstr = "";
 445         for ($i = 0 ; $i < 4096 ; $i++) {
 446             if (($i % 128) == 0)
 447                 $thiz->rndstr .= " ";
 448             else
 449                 $thiz->rndstr .= chr(mt_rand(65, 90));
 450         }
 451
 452         if (file_exists($thiz->file_socket)) {
 453             unlink($thiz->file_socket);
 454         }
 455
 456         $old_umask = umask(0);
 457         if (($thiz->list = stream_socket_server($thiz->unix_socket, $err, $errs)) === FALSE) {
 458             return (FALSE);
 459         }
 460         umask($old_umask);
 461         stream_set_blocking($thiz->list, $thiz->blocking_mode); # Set the stream to non-blocking
 462
 463         if (($thiz->in = fopen("php://stdin", "r")) === FALSE) {
 464             return(FALSE);
 465         }
 466
 467         $thiz->main_loop = FALSE;
 468
 469         return ($thiz);
 470     }
 471
 472     function socks_set($sock, $user)
 473     {
 474         $id = intval($sock);
 475
 476         $this->s2u[$id]   = $user;
 477         $this->socks[$id] = $sock;
 478     }
 479
 480     function socks_unset($sock)
 481     {
 482         $id = intval($sock);
 483
 484         unset($this->s2u[$id]);
 485         unset($this->socks[$id]);
 486     }
 487
 488     function pgflush_try_add($enc, &$new_socket, $tout, $header_out, $content)
 489     {
 490         $pgflush = new PageFlush($new_socket, $enc, $this->curtime, $tout, $header_out, $content);
 491
 492         if ($pgflush->try_flush($this->curtime) == FALSE) {
 493             // Add $pgflush to the pgflush array
 494             $this->pgflush_add($pgflush);
 495         }
 496     }
 497
 498     function pgflush_add($pgflush)
 499     {
 500         array_push($this->pages_flush, $pgflush);
 501     }
 502
 503     function garbage_manager($force)
 504     {
 505         $this->app->garbage_manager($force);
 506
 507         foreach ($this->socks as $k => $sock) {
 508             if ($this->s2u[intval($sock)]->sess == '') {
 509                 if ($this->s2u[intval($sock)]->rd_socket_get() != NULL) {
 510                     $this->s2u[intval($sock)]->rd_socket_set(NULL);
 511                 }
 512                 unset($this->socks[intval($sock)]);
 513                 unset($this->s2u[intval($sock)]);
 514                 fclose($sock);
 515                 printf("CLOSE ON GARBAGE MANAGER\n");
 516             }
 517         }
 518     }
 519
 520     function run()
 521     {
 522         GLOBAL $DOCUMENT_ROOT, $HTTP_HOST;
 523
 524         GLOBAL $G_alarm_passwd, $G_black_list, $G_btrace_pref_sub, $G_dbauth;
 525         GLOBAL $G_dbpfx, $G_donors_all, $G_donors_cur, $G_is_local, $G_lang;
 526         GLOBAL $G_poll_entries, $G_poll_name, $G_poll_title, $G_proxy_white_list;
 527         GLOBAL $G_room_roadmap, $G_shutdown, $G_sidebanner, $G_sidebanner2;
 528         GLOBAL $G_splash_content, $G_splash_contents, $G_splash_cont_idx;
 529         GLOBAL $G_splash_h, $G_splash_idx, $G_splash_interval, $G_splash_timeout;
 530         GLOBAL $G_splash_w, $G_topbanner, $G_with_donors, $G_with_poll;
 531         GLOBAL $G_with_sidebanner, $G_with_sidebanner2, $G_with_splash;
 532         GLOBAL $G_with_topbanner;
 533
 534         if ($this->main_loop) {
 535             return (FALSE);
 536         }
 537
 538         $this->main_loop = TRUE;
 539
 540         while ($this->main_loop) {
 541             $this->curtime = time();
 542             printf("IN LOOP: Current opened: %d  pages_flush: %d - ", count($this->socks), count($this->pages_flush));
 543
 544             /* Prepare the read array */
 545             /* // when we manage it ... */
 546             /* if ($shutdown)  */
 547             /*     $read   = array_merge(array("$in" => $in), $socks); */
 548             /* else */
 549             $read   = array_merge(array(intval($this->list) => $this->list, intval($this->in) => $this->in,
 550                                         intval(static::$cnt_slave) => static::$cnt_slave),
 551                                   $this->socks);
 552
 553             if ($this->debug > 1) {
 554                 printf("PRE_SELECT\n");
 555                 print_r($read);
 556             }
 557             $write  = NULL;
 558             $except = NULL;
 559             $num_changed_sockets = @stream_select($read, $write, $except, 0, 500000);
 560
 561             if ($num_changed_sockets == 0) {
 562                 printf(" no data in 5 secs, splash [%d]\n", $G_with_splash);
 563             }
 564             else if ($num_changed_sockets > 0) {
 565                 printf("num sock %d num_of_socket: %d\n", $num_changed_sockets, count($read));
 566                 if ($this->debug > 1) {
 567                     print_r($read);
 568                 }
 569                 /* At least at one of the sockets something interesting happened */
 570                 foreach ($read as $i => $sock) {
 571                     /* is_resource check is required because there is the possibility that
 572                        during new request an old connection is closed */
 573                     if (!is_resource($sock)) {
 574                         continue;
 575                     }
 576                     if ($sock === $this->list) {
 577                         printf("NUOVA CONNEX\n");
 578                         if (($new_unix = stream_socket_accept($this->list)) == FALSE) {
 579                             printf("SOCKET_ACCEPT FAILED\n");
 580                             continue;
 581                         }
 582                         $stream_info = "";
 583                         $method      = "";
 584                         $get         = array();
 585                         $post        = array();
 586                         $cookie      = array();
 587                         if (($new_socket = ancillary_getstream($new_unix, $stream_info)) !== FALSE) {
 588                             printf("NEW_SOCKET: %d\n", intval($new_socket));
 589                             stream_set_blocking($new_socket, $this->blocking_mode); // Set the stream to non-blocking
 590                             printf("RECEIVED HEADER:\n%s", $stream_info);
 591                             $path = spu_process_info($stream_info, $method, $header, $get, $post, $cookie);
 592                             printf("PATH: [%s]\n", $path);
 593                             printf("M: %s\nHEADER:\n", $method);
 594                             print_r($header);
 595                             printf("GET:\n");
 596                             print_r($get);
 597                             printf("POST:\n");
 598                             print_r($post);
 599                             printf("COOKIE:\n");
 600                             print_r($cookie);
 601                             $addr = stream_socket_get_name($new_socket, TRUE);
 602                             $header_out = array();
 603
 604                             $subs = SITE_PREFIX."briskin5/";
 605                             $subs_l = strlen($subs);
 606                             $rret = FALSE;
 607                             if (!strncmp($path, SITE_PREFIX, SITE_PREFIX_LEN)) {
 608                                 $rret = $this->app->request_mgr($this, $header, $header_out, $new_socket, substr($path, SITE_PREFIX_LEN), $addr, $get, $post, $cookie);
 609                             }
 610                             if ($rret == FALSE) {
 611                                 // FIXME: manage 404 !!!
 612                                 printf("TODO: fix unknown page\n");
 613                             }
 614                             printf("number of sockets after %d\n", count($this->socks));
 615                         }
 616                         else {
 617                             printf("WARNING: ancillary_getstream failed\n");
 618                         }
 619                     }
 620                     else {
 621                         $buf = fread($sock, 512);
 622                         // if socket is closed
 623                         if ($buf == FALSE || strlen($buf) == 0) {
 624                             if ($buf == FALSE) {
 625                                 printf("ERROR READING\n");
 626                             }
 627                             if ($sock === $this->list) {
 628                                 printf("Arrivati %d bytes da list\n", strlen($buf));
 629                                 return(21);
 630                             }
 631                             else if ($sock === $this->in || $sock === static::$cnt_slave) {
 632                                 printf("Arrivati %d bytes da stdin\n", strlen($buf));
 633                                 return(22);
 634                             }
 635                             else {
 636                                 // $user_a[$s2u[intval($sock)]]->disable();
 637                                 if ($this->s2u[intval($sock)]->rd_socket_get() != NULL) {
 638                                     $this->s2u[intval($sock)]->rd_socket_set(NULL);
 639                                 }
 640                                 unset($this->socks[intval($sock)]);
 641                                 unset($this->s2u[intval($sock)]);
 642                             }
 643                             fclose($sock);
 644                             printf("CLOSE ON READ\n");
 645
 646                             if ($this->debug > 1) {
 647                                 printf("post unset\n");
 648                                 print_r($this->socks);
 649                             }
 650                         }
 651                         else {
 652                             if ($this->debug > 1) {
 653                                 print_r($read);
 654                             }
 655                             if ($sock === $this->list) {
 656                                 printf("Arrivati %d bytes da list\n", strlen($buf));
 657                             }
 658                             else if ($sock === $this->in || $sock === static::$cnt_slave) {
 659                                 printf("Arrivati %d bytes da stdin\n", strlen($buf));
 660                                 $line = trim($buf);
 661                                 if ($line == "reload") {
 662                                     require("$DOCUMENT_ROOT/Etc/".BRISK_CONF);
 663
 664                                     global_dump();
 665                                 }
 666                                 else if ($line == "shutdown") {
 667                                     if ($this->app->dump_data()) {
 668                                         return(0);
 669                                     }
 670                                     else {
 671                                         return(1);
 672                                     }
 673                                 }
 674                             }
 675                             else {
 676                                 $key = array_search("$sock", $this->socks);
 677                                 printf("Arrivati %d bytes dalla socket n. %d\n", strlen($buf), $key);
 678                             }
 679                         }
 680                     }
 681                 }
 682             }
 683
 684             $this->garbage_manager(FALSE);
 685
 686             /* manage unfinished pages */
 687             foreach ($this->pages_flush as $k => $pgflush) {
 688                 if ($pgflush->try_flush($this->curtime) == TRUE) {
 689                     unset($this->pages_flush[$k]);
 690                 }
 691             }
 692
 693             /*
 694                $response:                        raw stream data not sent
 695                $content:                         html consistent data (<script bla bla>)
 696                $user->stream_keepalive($w_ping)  ping srv->cli OR srv->cli + cli->srv if $w_ping == TRUE
 697             */
 698
 699             /* manage open streaming */
 700             foreach ($this->socks as $k => $sock) {
 701                 if (isset($this->s2u[intval($sock)])) {
 702                     $user = $this->s2u[intval($sock)];
 703                     $response = $user->rd_cache_get();
 704                     $do_ping = FALSE;
 705                     if (($this->curtime - $user->lacc) > (EXPIRE_TIME_RD / 3)) {
 706                         $do_ping = TRUE;
 707                     }
 708                     else {
 709                         $user->ping_req = FALSE;
 710                     }
 711
 712                     if ($response == "") {
 713                         $content = "";
 714                         $user->stream_main($content, $get, $post, $cookie);
 715                         printf("[%s] [%d] [%d]\n", $user->name, $user->lacc, $this->curtime);
 716                         if ($do_ping && $user->ping_req == FALSE) {
 717                             $content .= $user->stream_keepalive(TRUE);
 718                             $user->ping_req = TRUE;
 719                         }
 720                         else if ($content == "" && $user->rd_kalive_is_expired($this->curtime)) {
 721                             $content = $user->stream_keepalive(FALSE);
 722                         }
 723                         if ($content != "") {
 724                             $response = chunked_content($user->rd_zls_get(), $content);
 725                         }
 726                     }
 727
 728                     if ($response != "") {
 729                         // echo "SPIA: [".substr($response, 0, 60)."...]\n";
 730                         echo "SPIA: [".$response."]\n";
 731                         $response_l = mb_strlen($response, "ASCII");
 732                         $wret = @fwrite($sock, $response);
 733                         if ($wret < $response_l) {
 734                             printf("TROUBLE WITH FWRITE: %d\n", $wret);
 735                             $user->rd_cache_set(mb_substr($response, $wret, $response_l - $wret, "ASCII"));
 736                         }
 737                         else {
 738                             $user->rd_cache_set("");
 739                         }
 740                         fflush($sock);
 741                         $user->rd_kalive_reset($this->curtime);
 742                     }
 743
 744                     // close socket after a while to prevent client memory consumption
 745                     if ($user->rd_endtime_is_expired($this->curtime)) {
 746                         if ($this->s2u[intval($sock)]->rd_socket_get() != NULL) {
 747                             $this->s2u[intval($sock)]->rd_socket_set(NULL);
 748                         }
 749                         unset($this->socks[intval($sock)]);
 750                         unset($this->s2u[intval($sock)]);
 751                         fclose($sock);
 752                         printf("CLOSE ON LOOP\n");
 753                     }
 754                 }
 755             }  // foreach ($this->socks...
 756             printf("\n");
 757         }  // while (...
 758     }  // function run(...
 759 }
 760
 761 ?>