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