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, $G_sidebanner, $G_sidebanner2;
  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_sidebanner, $G_with_sidebanner2, $G_with_splash;
  43     GLOBAL $G_with_topbanner;
  44
  45     fprintf(STDERR, "G_alarm_passwd = [%s]\n", print_r($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($G_shutdown, TRUE));
  61     fprintf(STDERR, "G_sidebanner = [%s]\n", print_r($G_sidebanner, TRUE));
  62     fprintf(STDERR, "G_sidebanner2 = [%s]\n", print_r($G_sidebanner2, TRUE));
  63     fprintf(STDERR, "G_splash_content = [%s]\n", print_r($G_splash_content, TRUE));
  64     fprintf(STDERR, "G_splash_contents = [%s]\n", print_r($G_splash_contents, TRUE));
  65     fprintf(STDERR, "G_splash_cont_idx = [%s]\n", print_r($G_splash_cont_idx, TRUE));
  66     fprintf(STDERR, "G_splash_h = [%s]\n", print_r($G_splash_h, TRUE));
  67     fprintf(STDERR, "G_splash_idx = [%s]\n", print_r($G_splash_idx, TRUE));
  68     fprintf(STDERR, "G_splash_interval = [%s]\n", print_r($G_splash_interval, TRUE));
  69     fprintf(STDERR, "G_splash_timeout = [%s]\n", print_r($G_splash_timeout, TRUE));
  70     fprintf(STDERR, "G_splash_w = [%s]\n", print_r($G_splash_w, TRUE));
  71     fprintf(STDERR, "G_topbanner = [%s]\n", print_r($G_topbanner, TRUE));
  72     fprintf(STDERR, "G_with_donors = [%s]\n", print_r($G_with_donors, TRUE));
  73     fprintf(STDERR, "G_with_poll = [%s]\n", print_r($G_with_poll, TRUE));
  74     fprintf(STDERR, "G_with_sidebanner = [%s]\n", print_r($G_with_sidebanner, TRUE));
  75     fprintf(STDERR, "G_with_sidebanner2 = [%s]\n", print_r($G_with_sidebanner2, TRUE));
  76     fprintf(STDERR, "G_with_splash = [%s]\n", print_r($G_with_splash, TRUE));
  77     fprintf(STDERR, "G_with_topbanner = [%s]\n", print_r($G_with_topbanner, TRUE));
  78 }
  79
  80 function pid_save()
  81 {
  82     $pid = getmypid();
  83     $fname = LEGAL_PATH."/brisk.pid";
  84
  85     if (file_exists($fname)) {
  86         log_crit("WARN: brisk.pid already exists");
  87     }
  88     file_put_contents($fname, sprintf("%d\n", $pid));
  89 }
  90
  91 function pid_remove()
  92 {
  93     $fname = LEGAL_PATH."/brisk.pid";
  94
  95     if (file_exists($fname)) {
  96         unlink($fname);
  97     }
  98 }
  99
 100 function post_manage(&$post, $line)
 101 {
 102     $a = explode('&', $line);
 103     for ($i = 0 ; $i < count($a) ; $i++) {
 104         $b = explode('=', $a[$i]);
 105         if (isset($b[0])) {
 106             if (isset($b[1])) {
 107                 $post[$b[0]] = urldecode($b[1]);
 108             }
 109             else {
 110                 $post[$b[0]] = "";
 111             }
 112         }
 113     }
 114 }
 115
 116 function spu_process_info($stream_info, &$method, &$header, &$get, &$post, &$cookie, &$rest, &$cont)
 117 {
 118     $check_post = FALSE;
 119     $header = array();
 120     $get = array();
 121     $post = array();
 122     $rest = 0;
 123     foreach(preg_split("/(\r?\n)/", $stream_info) as $line) {
 124         printf("LINE: [%s]\n", $line);
 125         if ($check_post) {
 126             if (!isset($header['The-Request'])) {
 127                 return FALSE;
 128             }
 129             $req = explode(" ", $header['The-Request']);
 130             $method = $req[0];
 131
 132             if (isset($header['Cookie'])) {
 133
 134                 // 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)]
 135
 136                 $cookies = explode("; ", $header['Cookie']);
 137                 for ($i = 0 ; $i < count($cookies) ; $i++) {
 138                     $name = mb_strstr($cookies[$i], "=", TRUE, 'UTF-8');
 139                     if ($name == FALSE) {
 140                         if (mb_strlen($cookies[$i]) > 0) {
 141                             $cookie[$cookies[$i]] = "";
 142                         }
 143                         else {
 144                             printf("WARNING: malformat cookie element [%s]\n", $cookies[$i]);
 145                         }
 146                         continue;
 147                     }
 148
 149                     $value = mb_substr($cookies[$i], mb_strlen($name)+1, 10140, 'UTF-8');
 150                     $cookie[$name] = urldecode($value);
 151                 }
 152             }
 153             // GET params management
 154             $get_vars = explode('?', $req[1], 2);
 155             $path = $get_vars[0];
 156             if (count($get_vars) > 1) {
 157                 $a = explode('&', $get_vars[1]);
 158                 printf("A COUNT: [%s] %d\n", $a[0], count($a));
 159                 for ($i = 0 ; $i < count($a) ; $i++) {
 160                     $b = explode('=', $a[$i]);
 161                     $get[$b[0]] = urldecode($b[1]);
 162                 }
 163             }
 164             // POST params management
 165             if ($req[0] == 'POST') {
 166                 $conttype_all = explode(";", $header['Content-Type']);
 167                 $header['Content-Type'] = $conttype_all[0];
 168                 // $path_all[1-] other things like charset and so on
 169
 170                 // if (content-type is wrong || content-length isn't set)
 171                 //     return false
 172
 173                 if ($header['Content-Type'] != 'application/x-www-form-urlencoded'
 174                     || !isset($header['Content-Length'])) {
 175                     return FALSE;
 176                 }
 177                 $post_len = mb_strlen($line, "ASCII");
 178                 printf("INFO: postlen: %d\n", $post_len);
 179                 $rest = (int)($header['Content-Length']) - $post_len;
 180
 181                 if ($rest == 0) {
 182                     post_manage($post, $line);
 183                 }
 184                 else {
 185                     $cont = $line;
 186                 }
 187             }
 188             break;
 189         }
 190         if ($line == "") {
 191             $check_post = TRUE;
 192             continue;
 193         }
 194         $split = explode(":", $line, 2);
 195         $hea_id = trim(mb_convert_case($split[0], MB_CASE_TITLE, 'UTF-8'));
 196         $header[$hea_id] = $split[1];
 197     }
 198     return $path;
 199 }
 200
 201 function gpcs_var($name, $get, $post, $cookie)
 202 {
 203     if (isset($GLOBALS[$name]))
 204         return FALSE;
 205     else if (isset($cookie[$name]))
 206         return ($cookie[$name]);
 207     else if (isset($post[$name]))
 208         return ($post[$name]);
 209     else if (isset($get[$name]))
 210         return ($get[$name]);
 211
 212     return FALSE;
 213 }
 214
 215 function headers_render($header, $len)
 216 {
 217     $cookies = "";
 218
 219     if (isset($header['cookies'])) {
 220         $cookies = $header['cookies']->render();
 221         unset($header['cookies']);
 222     }
 223     if (isset($header['Location'])) {
 224         $s = sprintf("HTTP/1.1 302 OK\r\n%sLocation: %s\r\n", $cookies, $header['Location']);
 225     }
 226     else if (isset($header['HTTP-Response'])) {
 227         $s = sprintf("HTTP/1.1 %s\r\n", $header['HTTP-Response']);
 228         foreach($header as $key => $value) {
 229             if (strtolower($key) == "http-response")
 230                 continue;
 231             $s .= sprintf("%s: %s\r\n", $key, $value);
 232         }
 233         if ($len >= 0) {
 234             $s .= sprintf("Content-Length: %ld\r\n", $len);
 235         }
 236     }
 237     else {
 238         $s = "HTTP/1.1 200 OK\r\n";
 239
 240         if (!isset($header['Date']))
 241             $s .= sprintf("Date: %s\r\n", date(DATE_RFC822));
 242         if (!isset($header['Connection']))
 243             $s .= "Connection: close\r\n";
 244         if (!isset($header['Content-Type']))
 245             $s .= "Content-Type: text/html\r\n";
 246         foreach($header as $key => $value) {
 247             $s .= sprintf("%s: %s\r\n", $key, $value);
 248         }
 249         if ($len >= 0) {
 250             $s .= sprintf("Content-Length: %d\r\n", $len);
 251         }
 252         else {
 253             $s .= "Cache-Control: no-cache, must-revalidate\r\n";
 254             $s .= "Expires: Mon, 26 Jul 1997 05:00:00 GMT\r\n";
 255             if (!isset($header['Content-Encoding'])) {
 256                 $s .= "Content-Encoding: chunked\r\n";
 257             }
 258             $s .= "Transfer-Encoding: chunked\r\n";
 259         }
 260         $s .= $cookies;
 261     }
 262     $s .= "\r\n";
 263
 264     return ($s);
 265 }
 266
 267 /*
 268  *  Caching system using ob php system to cache old style pages
 269  *  to a var and than send it with more calm
 270  */
 271
 272 function shutta()
 273 {
 274   log_rd2("SHUTTA [".connection_status()."] !");
 275 }
 276
 277 register_shutdown_function('shutta');
 278
 279 /*
 280  *  MAIN
 281  */
 282
 283 function get_encoding($header)
 284 {
 285     $enc = "plain";
 286     if (isset($header['Accept-Encoding'])) {
 287         $acc = explode(',', $header['Accept-Encoding']);
 288
 289         if (array_search('gzip', $acc) !== FALSE) {
 290             $enc = 'gzip';
 291         }
 292         else if (array_search('deflate', $acc) !== FALSE) {
 293             $enc = 'deflate';
 294         }
 295     }
 296
 297     return ($enc);
 298 }
 299
 300 class Cookie {
 301     var $attr;
 302     // Set-Cookie: reg_fb_gate=deleted; Expires=Thu, 01-Jan-1970 00:00:01 GMT; Path=/; Domain=.foo.com; HttpOnly
 303     // string $name  [, string $value  [, int $expire = 0  [, string $path  [, string $domain  [, bool $secure = false  [, bool $httponly = false  ]]]]]] )
 304     function Cookie()
 305     {
 306         $this->attr = array();
 307     }
 308
 309     static function create($name)
 310     {
 311         $thiz = new Cookie();
 312
 313         $thiz->attr[$name] = "";
 314
 315         $argc = func_num_args();
 316         for ($i = 1 ; $i < $argc ; $i++) {
 317             $arg = func_get_arg($i);
 318             switch ($i) {
 319             case 1:
 320                 $thiz->attr[$name] = urlencode($arg);
 321                 break;
 322             case 2:
 323                 $thiz->attr['Expires'] = gmdate('D, d M Y H:i:s \G\M\T', $arg); // RFC 1211 format
 324                 break;
 325             case 3:
 326                 $thiz->attr['Path'] = $arg;
 327                 break;
 328             case 4:
 329                 $thiz->attr['Domain'] = $arg;
 330                 break;
 331             case 5:
 332                 if ($arg == TRUE) {
 333                     $thiz->attr['Secure'] = NULL;
 334                 }
 335                 break;
 336             case 6:
 337                 if ($arg == TRUE) {
 338                     $thiz->attr['HttpOnly'] = NULL;
 339                 }
 340                 break;
 341             default:
 342                 return FALSE;
 343             }
 344         }
 345
 346         return $thiz;
 347     }
 348
 349     function render()
 350     {
 351         $r = "Set-Cookie: ";
 352         $isfirst = TRUE;
 353
 354         foreach ($this->attr as $k => $v) {
 355             if ($v == NULL) {
 356                 $r .= sprintf("%s%s", ($isfirst ? "" : "; "), $k);
 357             }
 358             else {
 359                 $r .= sprintf("%s%s=%s", ($isfirst ? "" : "; "), $k, $v);
 360             }
 361             $isfirst = FALSE;
 362         }
 363         $r .= "\r\n";
 364
 365         return $r;
 366     }
 367 }
 368
 369 class Cookies {
 370     var $cookies;
 371
 372     function Cookies()
 373     {
 374         $this->cookies = array();
 375     }
 376
 377     function add($name)
 378     {
 379         if (($cookie = call_user_func_array("Cookie::create", func_get_args())) == FALSE)
 380             return (FALSE);
 381
 382         array_push($this->cookies, $cookie);
 383
 384         return (TRUE);
 385     }
 386
 387     function render()
 388     {
 389         $r = "";
 390         foreach ($this->cookies as $cookie) {
 391             $r .= $cookie->render();
 392         }
 393
 394         return ($r);
 395     }
 396 }
 397
 398
 399 class Sac_a_push {
 400     // maybe fixed_fd is unuseful
 401     static $fixed_fd = 3;
 402     static $cnt_master = NULL;
 403     static $cnt_slave  = NULL;
 404
 405     var $file_socket;
 406     var $unix_socket;
 407     var $direct_socket;   // socket where read direct commands
 408     var $socks;
 409     var $s2u;             // user associated with input socket
 410     var $s2p;             // pending page associated with input socket
 411     var $pending_pages;
 412     var $is_daemon;
 413
 414     var $list_web;
 415     var $list_cmd;
 416     var $in;
 417
 418     var $debug;
 419     var $blocking_mode;
 420
 421     var $app;
 422
 423     var $curtime;
 424
 425     var $rndstr;
 426     var $main_loop;
 427
 428     function Sac_a_push()
 429     {
 430     }
 431
 432     function sig_handler($sig)
 433     {
 434         switch ($sig) {
 435         case SIGINT:
 436             exit(1);
 437             break;
 438         case SIGTERM:
 439             if (static::$cnt_master != NULL) {
 440                     fwrite(static::$cnt_master, "\nshutdown\n");
 441                     fflush(static::$cnt_master);
 442             }
 443             else {
 444                 exit(1);
 445             }
 446             break;
 447         case SIGHUP:
 448             if (static::$cnt_master != NULL) {
 449                 fwrite(static::$cnt_master, "\nreload\n");
 450                 fflush(static::$cnt_master);
 451             }
 452             break;
 453         }
 454     }
 455
 456     static function create(&$app, $sockname, $debug, $blocking_mode, $argv)
 457     {
 458         $thiz = new Sac_a_push();
 459
 460         $thiz->app = $app;
 461         $thiz->file_socket = $sockname;
 462         $thiz->unix_socket = "unix://$sockname";
 463         $thiz->direct_socket = "unix://${sockname}2";
 464         $thiz->debug = $debug;
 465         $thiz->socks = array();
 466         $thiz->s2u  = array();
 467         $thiz->s2p  = array();
 468         $thiz->pending_pages = array();
 469         $thiz->is_daemon = FALSE;
 470
 471         if (array_search("-d", $argv) !== FALSE || array_search("--daemon", $argv) !== FALSE) {
 472             $thiz->is_daemon = TRUE;
 473         }
 474
 475         // create a couple of sockets for control management
 476         if (($sockpair = stream_socket_pair(STREAM_PF_UNIX, STREAM_SOCK_STREAM,
 477                                             STREAM_IPPROTO_IP)) == FALSE) {
 478             return FALSE;
 479         }
 480         static::$cnt_master = $sockpair[0];
 481         static::$cnt_slave  = $sockpair[1];
 482
 483         pcntl_signal(SIGTERM, array("Sac_a_push", "sig_handler"));
 484         pcntl_signal(SIGINT, array("Sac_a_push", "sig_handler"));
 485         pcntl_signal(SIGHUP, array("Sac_a_push", "sig_handler"));
 486
 487         $thiz->blocking_mode = 0; // 0 for non-blocking
 488
 489         $thiz->rndstr = "";
 490         for ($i = 0 ; $i < 4096 ; $i++) {
 491             if (($i % 128) == 0)
 492                 $thiz->rndstr .= " ";
 493             else
 494                 $thiz->rndstr .= chr(mt_rand(65, 90));
 495         }
 496
 497         if (file_exists($thiz->file_socket)) {
 498             unlink($thiz->file_socket);
 499         }
 500         if (file_exists($thiz->file_socket."2")) {
 501             unlink($thiz->file_socket."2");
 502         }
 503
 504         $old_umask = umask(0);
 505         if (($thiz->list_web = stream_socket_server($thiz->unix_socket, $err, $errs)) === FALSE) {
 506             return (FALSE);
 507         }
 508         if (($thiz->list_cmd = stream_socket_server($thiz->direct_socket, $err, $errs)) === FALSE) {
 509             return (FALSE);
 510         }
 511         umask($old_umask);
 512         stream_set_blocking($thiz->list_web, $thiz->blocking_mode); # Set the stream to non-blocking
 513         stream_set_blocking($thiz->list_cmd, $thiz->blocking_mode); # Set the stream to non-blocking
 514
 515         if (($thiz->in = fopen("php://stdin", "r")) === FALSE) {
 516             return(FALSE);
 517         }
 518
 519         $thiz->main_loop = FALSE;
 520
 521         return ($thiz);
 522     }
 523
 524     function socks_set($sock, $user, $pendpage)
 525     {
 526         $id = intval($sock);
 527
 528         $this->socks[$id] = $sock;
 529         if ($user != NULL)
 530             $this->s2u[$id]   = $user;
 531         if ($pendpage != NULL)
 532             $this->s2p[$id]   = $pendpage;
 533     }
 534
 535     function socks_unset($sock)
 536     {
 537         $id = intval($sock);
 538
 539         if (isset($this->s2u[$id]))
 540             unset($this->s2u[$id]);
 541         if (isset($this->s2p[$id]))
 542             unset($this->s2p[$id]);
 543         unset($this->socks[$id]);
 544     }
 545
 546     function pendpage_try_addcont(&$new_socket, $tout, $method, $header, $get, $post, $cookie, $path, $addr, $rest, $cont)
 547     {
 548         $pendpage = PendingPage::pendingpage_continue(&$new_socket, $this->curtime, $tout, $method,
 549                                                            $header,           $get, $post, $cookie,
 550                                                              $path,          $addr, $rest, $cont);
 551
 552         $pendpage->try_flush($this->curtime);
 553         // Add $pendpage to the pendpage array (in any case)
 554         fprintf(STDERR, "IMPORTANT: Pendadd: %d\n", $pendpage->status);
 555         $this->pendpage_add($pendpage);
 556     }
 557
 558     function pendpage_try_addflush(&$new_socket, $tout, $enc, $header_out, $content)
 559     {
 560         $pendpage = PendingPage::pendingpage_flushing($new_socket, $this->curtime, $tout, $enc, $header_out, $content);
 561
 562         if ($pendpage->try_flush($this->curtime) == FALSE) {
 563             // Add $pendpage to the pendpage array
 564             $this->pendpage_add($pendpage);
 565         }
 566     }
 567
 568     function pendpage_add($pendpage)
 569     {
 570         array_push($this->pending_pages, $pendpage);
 571         $this->socks_set($pendpage->socket_get(), NULL, $pendpage);
 572     }
 573
 574     function pendpage_rem($pendpage)
 575     {
 576         $sock = $pendpage->socket_get();
 577         if (($key = array_search($pendpage, $this->pending_pages)) !== FALSE) {
 578             unset($this->pending_pages[$key]);
 579         }
 580         else {
 581             fprintf(STDERR, "WARNING: pendpage not found\n");
 582         }
 583         $this->socks_unset($sock);
 584         fprintf(STDERR, "PP_REM: %d\n", intval($sock));
 585     }
 586
 587
 588     function pendpage_try_addwait(&$new_socket, $tout, $method, $header, $get, $post, $cookie, $path, $addr, $rest, $cont)
 589     {
 590         $pendpage = PendingPage::pendingpage_waiting($new_socket, $this->curtime, $tout, $method, $header, $get, $post, $cookie, $path, $addr, $rest, $cont);
 591         /*
 592         if ($pendpage->try_flush($this->curtime) == FALSE) {
 593             // Add $pendpage to the pendpage array
 594             */
 595         $this->pendpage_add($pendpage);
 596         /*
 597         }
 598         */
 599     }
 600
 601     function garbage_manager($force)
 602     {
 603         $this->app->garbage_manager($force);
 604
 605         foreach ($this->socks as $k => $sock) {
 606             $id = intval($sock);
 607             if (isset($this->s2u[$id])) {
 608                 if ($this->s2u[$id]->sess == '') {
 609                     if ($this->s2u[$id]->rd_socket_get() != NULL) {
 610                         $this->s2u[$id]->rd_socket_set(NULL);
 611                     }
 612                     unset($this->socks[$id]);
 613                     unset($this->s2u[$id]);
 614                     fclose($sock);
 615                     printf("CLOSE ON GARBAGE MANAGER\n");
 616                 }
 617             }
 618         }
 619     }
 620
 621     function run()
 622     {
 623         GLOBAL $DOCUMENT_ROOT, $HTTP_HOST;
 624
 625         GLOBAL $G_alarm_passwd, $G_ban_list, $G_black_list, $G_btrace_pref_sub, $G_dbauth;
 626         GLOBAL $G_dbpfx, $G_donors_all, $G_donors_cur, $G_is_local, $G_lang;
 627         GLOBAL $G_poll_entries, $G_poll_name, $G_poll_title, $G_proxy_white_list;
 628         GLOBAL $G_room_roadmap, $G_shutdown, $G_sidebanner, $G_sidebanner2;
 629         GLOBAL $G_splash_content, $G_splash_contents, $G_splash_cont_idx;
 630         GLOBAL $G_splash_h, $G_splash_idx, $G_splash_interval, $G_splash_timeout;
 631         GLOBAL $G_splash_w, $G_topbanner, $G_with_donors, $G_with_poll;
 632         GLOBAL $G_with_sidebanner, $G_with_sidebanner2, $G_with_splash;
 633         GLOBAL $G_with_topbanner;
 634         GLOBAL $G_tos_vers, $G_tos_fname, $G_tos_dtsoft, $G_tos_dthard, $G_tos_idx, $G_doc_path;
 635
 636         if ($this->main_loop) {
 637             return (FALSE);
 638         }
 639
 640         $this->main_loop = TRUE;
 641
 642         while ($this->main_loop) {
 643             $this->app->sess_cur_set(FALSE);
 644             $this->curtime = time();
 645             fprintf(STDERR, "IN LOOP: Current opened: %d  pending_pages: %d\n", count($this->socks), count($this->pending_pages));
 646
 647             /* Prepare the read array */
 648             /* // when we manage it ... */
 649             /* if ($shutdown)  */
 650             /*     $read   = array_merge(array("$in" => $in), $socks); */
 651             /* else */
 652             $pre_read = array_merge(array(intval($this->list_web) => $this->list_web,
 653                                           intval($this->list_cmd) => $this->list_cmd,
 654                                           intval(static::$cnt_slave) => static::$cnt_slave),
 655                                     $this->socks);
 656             if ($this->is_daemon == FALSE) {
 657                 $read = array_merge($pre_read, array(intval($this->in) => $this->in));
 658             }
 659             else {
 660                 $read = $pre_read;
 661             }
 662
 663             if ($this->debug > 1) {
 664                 printf("PRE_SELECT\n");
 665                 print_r($read);
 666             }
 667             $write  = NULL;
 668             $except = NULL;
 669             $num_changed_sockets = @stream_select($read, $write, $except, 0, 500000);
 670
 671             if ($num_changed_sockets == 0) {
 672                 printf(" no data in 5 secs, splash [%d]\n", $G_with_splash);
 673             }
 674             else if ($num_changed_sockets > 0) {
 675                 printf("num sock %d num_of_socket: %d\n", $num_changed_sockets, count($read));
 676                 if ($this->debug > 1) {
 677                     print_r($read);
 678                 }
 679                 /* At least at one of the sockets something interesting happened */
 680                 foreach ($read as $i => $sock) {
 681                     $id = intval($sock);
 682                     $manage_page = FALSE;
 683                     /* is_resource check is required because there is the possibility that
 684                        during new request an old connection is closed */
 685                     if (!is_resource($sock)) {
 686                         continue;
 687                     }
 688                     if ($sock === $this->list_web) {
 689                         printf("NUOVA CONNEX\n");
 690                         if (($new_unix = stream_socket_accept($this->list_web)) == FALSE) {
 691                             printf("SOCKET_ACCEPT FAILED\n");
 692                             continue;
 693                         }
 694                         $stream_info = "";
 695                         $method      = "";
 696                         $get         = array();
 697                         $post        = array();
 698                         $cookie      = array();
 699                         $rest        = 0;
 700                         $cont        = "";
 701                         if (($new_socket = ancillary_getstream($new_unix, $stream_info)) !== FALSE) {
 702                             printf("NEW_SOCKET: %d\n", intval($new_socket));
 703                             stream_set_blocking($new_socket, $this->blocking_mode); // Set the stream to non-blocking
 704                             printf("RECEIVED HEADER:\n%s", $stream_info);
 705                             if (($path = spu_process_info($stream_info, $method, $header,
 706                                                           $get, $post, $cookie, $rest, $cont))
 707                                 == FALSE) {
 708                                 fprintf(STDERR, "TODO: fix wrong header management\n");
 709                             }
 710                             $addr = stream_socket_get_name($new_socket, TRUE);
 711                             printf("PATH: [%s]\n", $path);
 712                             if ($method == "POST" && $rest > 0) {
 713                                 if (isset($header['Expect']) && $header['Expect'] == '100-continue') {
 714                                     fprintf(STDERR, "\nPOSTA DE CHE\n\n");
 715                                     $this->pendpage_try_addcont($new_socket, 20,
 716                                                                 $method, $header, $get, $post, $cookie,
 717                                                                 $path, $addr, $rest, $cont);
 718                                 }
 719                                 else {
 720                                     $this->pendpage_try_addwait($new_socket, 20,
 721                                                                 $method, $header, $get, $post, $cookie,
 722                                                                 $path, $addr, $rest, $cont);
 723                                 }
 724                             }
 725                             else {
 726                                 $manage_page = TRUE;
 727                             }
 728
 729                             printf("number of sockets after %d\n", count($this->socks));
 730                         }
 731                         else {
 732                             printf("WARNING: ancillary_getstream failed\n");
 733                         }
 734                     }
 735                     else if ($sock === $this->list_cmd) {
 736                         printf("NUOVA DIRECT CONNEX\n");
 737                         if (($new_unix = stream_socket_accept($this->list_cmd)) == FALSE) {
 738                             printf("SOCKET_ACCEPT FAILED\n");
 739                             continue;
 740                         }
 741                         stream_set_blocking($new_unix, $this->blocking_mode);
 742                         $this->direct_mgmt($new_unix);
 743                     } // not socket_list nor socket_list_cmd
 744                     else {  // already opened socket
 745                         $buf = fread($sock, 4096);
 746                         // if socket is closed
 747                         if ($buf == FALSE || feof($sock)) {
 748                             // close socket case
 749                             if ($buf == FALSE) {
 750                                 printf("INFO: read return false\n");
 751                             }
 752                             if ($sock === $this->list_web) {
 753                                 printf("Arrivati %d bytes da list\n", mb_strlen($buf, "ASCII"));
 754                                 return(21);
 755                             }
 756                             else if ($sock === $this->list_cmd) {
 757                                 printf("Arrivati %d bytes da list_cmd\n", mb_strlen($buf, "ASCII"));
 758                                 return(23);
 759                             }
 760                             else if ($sock === $this->in || $sock === static::$cnt_slave) {
 761                                 printf("Arrivati %d bytes da stdin\n", mb_strlen($buf, "ASCII"));
 762                                 return(22);
 763                             }
 764                             else {
 765                                 unset($this->socks[$id]);
 766                                 if (isset($this->s2u[$id])) {
 767                                     // $user_a[$s2u[$id]]->disable();
 768                                     if ($this->s2u[$id]->rd_socket_get() != NULL) {
 769                                         // try to send close frame (for websocket)
 770                                         $clo = $this->s2u[$id]->stream_close();
 771                                         $clo_l = mb_strlen($clo, "ASCII");
 772                                         @fwrite($sock, $clo, $clo_l);
 773                                         $this->s2u[$id]->rd_socket_set(NULL);
 774                                     }
 775                                     unset($this->s2u[$id]);
 776                                 }
 777                             }
 778                             fclose($sock);
 779                             printf("CLOSE ON READ\n");
 780
 781                             if ($this->debug > 1) {
 782                                 printf("post unset\n");
 783                                 print_r($this->socks);
 784                             }
 785                         }  // if ($buf == FALSE || mb_strlen($buf, "ASCII") == 0) {
 786                         else { // data on the socket
 787                             if ($this->debug > 1) {
 788                                 print_r($read);
 789                             }
 790                             if ($sock === $this->list_web) {
 791                                 printf("Arrivati %d bytes da list\n", mb_strlen($buf, "ASCII"));
 792                             }
 793                             else if ($sock === $this->list_cmd) {
 794                                 printf("Arrivati %d bytes da list_cmd\n", mb_strlen($buf, "ASCII"));
 795                             }
 796                             else if ($sock === $this->in || $sock === static::$cnt_slave) {
 797                                 printf("Arrivati %d bytes da stdin\n", mb_strlen($buf, "ASCII"));
 798                                 $line = trim($buf);
 799                                 if ($line == "reload") {
 800                                     require("$DOCUMENT_ROOT/Etc/".BRISK_CONF);
 801                                     $this->app->reload($G_ban_list, $G_black_list);
 802                                     global_dump();
 803                                 }
 804                                 else if ($line == "shutdown" || $line == "sd") {
 805                                     if ($this->app->dump_data()) {
 806                                         return(0);
 807                                     }
 808                                     else {
 809                                         return(1);
 810                                     }
 811                                 }
 812                             }
 813                             else {  // data arrived from not special socket
 814                                 $key = array_search("$sock", $this->socks);
 815                                 fprintf(STDERR, "Arrivati %d bytes dalla socket n. %d\n", mb_strlen($buf, "ASCII"), $key);
 816                                 if (isset($this->s2p[$id])) {
 817                                     $this->s2p[$id]->rest -= mb_strlen($buf, "ASCII");
 818                                     $this->s2p[$id]->cont .= $buf;
 819                                     if ($this->s2p[$id]->rest <= 0) {
 820                                         $header = $new_socket = $path = $addr = $get = $cookie = 0;
 821                                         $post = array();
 822
 823                                         $this->s2p[$id]->context_get($header, $new_socket, $path, $addr, $get, $post, $cookie);
 824                                         $this->pendpage_rem($this->s2p[$id]);
 825                                         fprintf(STDERR, "SOCKET RUN: %s\n", $new_socket);
 826
 827                                         $manage_page = TRUE;
 828                                     }
 829                                 }
 830                             }
 831                         }
 832                     }
 833
 834                     if ($manage_page == TRUE) {
 835                         printf("M: %s\nHEADER:\n", $method);
 836                         print_r($header);
 837                         printf("GET:\n");
 838                         print_r($get);
 839                         printf("POST:\n");
 840                         print_r($post);
 841                         printf("COOKIE:\n");
 842                         print_r($cookie);
 843
 844                         $header_out = array();
 845                         // TODO: MOVE DOWN request_mgr to factorize new_sockets and POST closed
 846                         $rret = FALSE;
 847                         if (!strncmp($path, SITE_PREFIX, SITE_PREFIX_LEN)) {
 848                             $rret = $this->app->request_mgr($this, $header, $header_out, $new_socket, substr($path, SITE_PREFIX_LEN), $addr, $get, $post, $cookie);
 849                         }
 850                         if ($rret == FALSE) {
 851                             // FIXME: manage 404 !!!
 852                             printf("TODO: fix unknown page\n");
 853                         }
 854                     }
 855                 }
 856             }
 857
 858             $this->garbage_manager(FALSE);
 859
 860             /* manage unfinished pages */
 861             foreach ($this->pending_pages as $k => $pendpage) {
 862                 // TODO: try_flush if exists in the class
 863                 if ($pendpage->try_flush($this->curtime) == TRUE) {
 864                     unset($this->pending_pages[$k]);
 865                 }
 866             }
 867
 868             /*
 869                $response:                        raw stream data not sent
 870                $content:                         html consistent data (<script bla bla>)
 871                $user->stream_keepalive($w_ping)  ping srv->cli OR srv->cli + cli->srv if $w_ping == TRUE
 872             */
 873
 874             /* manage open streaming */
 875             foreach ($this->socks as $k => $sock) {
 876                 $id = intval($sock);
 877                 if (isset($this->s2u[$id])) {
 878                     $user = $this->s2u[$id];
 879                     $response = $user->rd_cache_get();
 880                     $do_ping = FALSE;
 881                     if (($this->curtime - $user->lacc) > (EXPIRE_TIME_RD / 3)) {
 882                         $do_ping = TRUE;
 883                     }
 884                     else {
 885                         $user->ping_req = FALSE;
 886                     }
 887
 888                     if ($response == "") {
 889                         $content = "";
 890                         $user->stream_main($content, $get, $post, $cookie);
 891                         printf("[%s] [%d] [%d]\n", $user->name, $user->lacc, $this->curtime);
 892                         if ($do_ping && $user->ping_req == FALSE) {
 893                             $content .= $user->stream_keepalive(TRUE);
 894                             $user->ping_req = TRUE;
 895                         }
 896                         else if ($content == "" && $user->rd_kalive_is_expired($this->curtime)) {
 897                             $content = $user->stream_keepalive(FALSE);
 898                         }
 899                         if ($content != "") {
 900                             $response = $user->chunked_content($content);
 901                         }
 902                     }
 903
 904                     if ($response != "") {
 905                         // echo "SPIA: [".substr($response, 0, 60)."...]\n";
 906                         // echo "SPIA: [".$response."]\n";
 907                         $response_l = mb_strlen($response, "ASCII");
 908                         $wret = @fwrite($sock, $response, $response_l);
 909                         if ($wret < $response_l) {
 910                             printf("TROUBLE WITH FWRITE: %d\n", $wret);
 911                             $user->rd_cache_set(mb_substr($response, $wret, $response_l - $wret, "ASCII"));
 912                         }
 913                         else {
 914                             $user->rd_cache_set("");
 915                         }
 916                         fflush($sock);
 917                         $user->rd_kalive_reset($this->curtime);
 918                     }
 919
 920                     // close socket after a while to prevent client memory consumption
 921                     if ($user->rd_endtime_is_expired($this->curtime)) {
 922                         if ($this->s2u[$id]->rd_socket_get() != NULL) {
 923                             $this->s2u[$id]->rd_socket_set(NULL);
 924                         }
 925                         unset($this->socks[$id]);
 926                         unset($this->s2u[$id]);
 927                         $clo = $user->stream_close();
 928                         $clo_l = mb_strlen($clo, "ASCII");
 929                         @fwrite($sock, $clo, $clo_l);
 930                         fclose($sock);
 931                         printf("CLOSE ON LOOP\n");
 932                     }
 933                 }  // if (isset($this->s2u[$id]...
 934             }  // foreach ($this->socks...
 935             printf("\n");
 936         }  // while (...
 937     }  // function run(...
 938
 939     function direct_command($cmdstr)
 940     {
 941         GLOBAL $G_alarm_passwd;
 942
 943         $cmd = cmd_deserialize($cmdstr);
 944
 945         if (!isset($cmd['cmd'])) {
 946             return cmd_return(500, 'no cmd found');
 947         }
 948         // "cmd" => "userauth", "sess" => 'xxxxxxxxxxx', 'private' => 'it_must_be_correct',
 949         //           'the_end' => 'true' );
 950         // cmd=userauth&sess=52d796ac08c47&private=yourpasswd192.168.122.152d796ac08c47&the_end=true
 951         if ($cmd['cmd'] == 'userauth') {
 952             if (!isset($cmd['sess']) || !isset($cmd['private'])) {
 953                 return cmd_return(401, 'malformed cmd');
 954             }
 955             $idx = -1;
 956             if (($user = $this->app->get_user($cmd['sess'], &$idx)) == FALSE)
 957                 return cmd_return(402, 'user not found');
 958
 959             if (($user->flags & USER_FLAG_TY_ADMIN) == 0x00)
 960                 return cmd_return(403, 'permission denied');
 961
 962             if (md5($G_alarm_passwd.$user->ip.$user->sess) != $cmd['private'])
 963                 return cmd_return(404, 'authentication failed ['.$cmd['private'].']['.$G_alarm_passwd.$user->ip.$user->sess.']');
 964
 965             return cmd_return(200, 'success');
 966         }
 967
 968         return cmd_return(501, 'no cmd found');
 969     }
 970
 971     function direct_mgmt($socket)
 972     {
 973         printf("DIRECT: begin\n");
 974         $st = DIRECT_ST_READ;
 975         $cmd_all = "";
 976         $endtime = $this->curtime + 3;
 977
 978         while(time() <= $endtime) {
 979             printf("DIRECT: init loop %d\n", $st);
 980             if ($st == DIRECT_ST_READ) {
 981                 $buf = fread($socket, 4096);
 982                 if ($buf == FALSE && feof($socket)) {
 983                     break;
 984                 }
 985                 else if ($buf != FALSE && strlen($buf) > 0) {
 986                     $cmd_all .= $buf;
 987
 988                     if (substr(trim($cmd_all), -13) == "&the_end=true") {
 989                         $output_arr = $this->direct_command($cmd_all);
 990                         $output = cmd_serialize($output_arr);
 991                         $output_cur = 0;
 992                         $output_len = mb_strlen($output, "ASCII");
 993                         $st = DIRECT_ST_WRITE;
 994                         continue;
 995                     }
 996                 }
 997             }
 998             else if ($st == DIRECT_ST_WRITE)  {
 999                 $ret = fwrite($socket, $output, $output_len);
1000                 if ($ret === FALSE) {
1001                     if (feof($socket)) {
1002                         break;
1003                     }
1004                 }
1005                 else if ($ret > 0 && $ret < $output_len) {
1006                     $output = substr($output, -($output_len - $ret));
1007                     $output_len -= $ret;
1008                     continue;
1009                 }
1010                 else if ($ret == $output_len) {
1011                     fclose($socket);
1012                     return TRUE;
1013                 }
1014             }
1015             usleep(10000);
1016         }
1017
1018         fclose($socket);
1019         return FALSE;
1020     }
1021 } // class Sac_a_push
1022 ?>