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 $G_with_topbanner;
  44
  45     fprintf(STDERR, "G_alarm_passwd = [%s]\n", print_r($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 }
  77
  78 function pid_save()
  79 {
  80     $pid = getmypid();
  81     $fname = LEGAL_PATH."/brisk.pid";
  82
  83     if (file_exists($fname)) {
  84         log_crit("WARN: brisk.pid already exists");
  85     }
  86     file_put_contents($fname, sprintf("%d\n", $pid));
  87 }
  88
  89 function pid_remove()
  90 {
  91     $fname = LEGAL_PATH."/brisk.pid";
  92
  93     if (file_exists($fname)) {
  94         unlink($fname);
  95     }
  96 }
  97
  98 function post_manage(&$post, $line)
  99 {
 100     $a = explode('&', $line);
 101     for ($i = 0 ; $i < count($a) ; $i++) {
 102         $b = explode('=', $a[$i]);
 103         if (isset($b[0])) {
 104             if (isset($b[1])) {
 105                 $post[$b[0]] = urldecode($b[1]);
 106             }
 107             else {
 108                 $post[$b[0]] = "";
 109             }
 110         }
 111     }
 112 }
 113
 114 function spu_process_info($stream_info, &$method, &$header, &$get, &$post, &$cookie, &$rest, &$cont)
 115 {
 116     $check_post = FALSE;
 117     $header = array();
 118     $get = array();
 119     $post = array();
 120     $rest = 0;
 121     foreach(preg_split("/(\r?\n)/", $stream_info) as $line) {
 122         printf("LINE: [%s]\n", $line);
 123         if ($check_post) {
 124             if (!isset($header['The-Request'])) {
 125                 return FALSE;
 126             }
 127             $req = explode(" ", $header['The-Request']);
 128             $method = $req[0];
 129
 130             if (isset($header['Cookie'])) {
 131
 132                 // 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)]
 133
 134                 $cookies = explode("; ", $header['Cookie']);
 135                 for ($i = 0 ; $i < count($cookies) ; $i++) {
 136                     $name = mb_strstr($cookies[$i], "=", TRUE, 'UTF-8');
 137                     if ($name == FALSE) {
 138                         if (mb_strlen($cookies[$i]) > 0) {
 139                             $cookie[$cookies[$i]] = "";
 140                         }
 141                         else {
 142                             printf("WARNING: malformat cookie element [%s]\n", $cookies[$i]);
 143                         }
 144                         continue;
 145                     }
 146
 147                     $value = mb_substr($cookies[$i], mb_strlen($name)+1, 10140, 'UTF-8');
 148                     $cookie[$name] = urldecode($value);
 149                 }
 150             }
 151             // GET params management
 152             $get_vars = explode('?', $req[1], 2);
 153             $path = $get_vars[0];
 154             if (count($get_vars) > 1) {
 155                 $a = explode('&', $get_vars[1]);
 156                 printf("A COUNT: [%s] %d\n", $a[0], count($a));
 157                 for ($i = 0 ; $i < count($a) ; $i++) {
 158                     $b = explode('=', $a[$i]);
 159                     if ($b[0] == "")
 160                         continue;
 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 $provider_proxy; // list of provider/browser that offer proxy service
 406
 407     var $file_socket;
 408     var $unix_socket;
 409     var $direct_socket;   // socket where read direct commands
 410     var $socks;
 411     var $s2u;             // user associated with input socket
 412     var $s2p;             // pending page associated with input socket
 413     var $pending_pages;
 414     var $is_daemon;
 415
 416     var $list_web;
 417     var $list_cmd;
 418     var $in;
 419
 420     var $debug;
 421     var $blocking_mode;
 422
 423     var $app;
 424
 425     var $curtime;
 426
 427     var $rndstr;
 428     var $main_loop;
 429
 430     function Sac_a_push()
 431     {
 432     }
 433
 434     function sig_handler($sig)
 435     {
 436         switch ($sig) {
 437         case SIGINT:
 438             exit(1);
 439             break;
 440         case SIGTERM:
 441             if (static::$cnt_master != NULL) {
 442                     fwrite(static::$cnt_master, "\nshutdown\n");
 443                     fflush(static::$cnt_master);
 444             }
 445             else {
 446                 exit(1);
 447             }
 448             break;
 449         case SIGHUP:
 450             if (static::$cnt_master != NULL) {
 451                 fwrite(static::$cnt_master, "\nreload\n");
 452                 fflush(static::$cnt_master);
 453             }
 454             break;
 455         }
 456     }
 457
 458     static function create(&$app, $sockname, $debug, $blocking_mode, $provider_proxy, $argv)
 459     {
 460         $thiz = new Sac_a_push();
 461
 462         $thiz->app = $app;
 463
 464         $thiz->provider_proxy = ProviderProxy::create();
 465
 466         $thiz->file_socket = $sockname;
 467         $thiz->unix_socket = "unix://$sockname";
 468         $thiz->direct_socket = "unix://${sockname}2";
 469         $thiz->debug = $debug;
 470         $thiz->socks = array();
 471         $thiz->s2u  = array();
 472         $thiz->s2p  = array();
 473         $thiz->pending_pages = array();
 474         $thiz->is_daemon = FALSE;
 475
 476         if (array_search("-d", $argv) !== FALSE || array_search("--daemon", $argv) !== FALSE) {
 477             $thiz->is_daemon = TRUE;
 478         }
 479
 480         // create a couple of sockets for control management
 481         if (($sockpair = stream_socket_pair(STREAM_PF_UNIX, STREAM_SOCK_STREAM,
 482                                             STREAM_IPPROTO_IP)) == FALSE) {
 483             return FALSE;
 484         }
 485         static::$cnt_master = $sockpair[0];
 486         static::$cnt_slave  = $sockpair[1];
 487
 488         pcntl_signal(SIGTERM, array("Sac_a_push", "sig_handler"));
 489         pcntl_signal(SIGINT, array("Sac_a_push", "sig_handler"));
 490         pcntl_signal(SIGHUP, array("Sac_a_push", "sig_handler"));
 491
 492         $thiz->blocking_mode = 0; // 0 for non-blocking
 493
 494         $thiz->rndstr = "";
 495         for ($i = 0 ; $i < 4096 ; $i++) {
 496             if (($i % 128) == 0)
 497                 $thiz->rndstr .= " ";
 498             else
 499                 $thiz->rndstr .= chr(mt_rand(65, 90));
 500         }
 501
 502         if (file_exists($thiz->file_socket)) {
 503             unlink($thiz->file_socket);
 504         }
 505         if (file_exists($thiz->file_socket."2")) {
 506             unlink($thiz->file_socket."2");
 507         }
 508
 509         $old_umask = umask(0);
 510         if (($thiz->list_web = stream_socket_server($thiz->unix_socket, $err, $errs)) === FALSE) {
 511             return (FALSE);
 512         }
 513         if (($thiz->list_cmd = stream_socket_server($thiz->direct_socket, $err, $errs)) === FALSE) {
 514             return (FALSE);
 515         }
 516         umask($old_umask);
 517         stream_set_blocking($thiz->list_web, $thiz->blocking_mode); # Set the stream to non-blocking
 518         stream_set_blocking($thiz->list_cmd, $thiz->blocking_mode); # Set the stream to non-blocking
 519
 520         if (($thiz->in = fopen("php://stdin", "r")) === FALSE) {
 521             return(FALSE);
 522         }
 523
 524         $thiz->main_loop = FALSE;
 525         $thiz->reload(TRUE, $provider_proxy);
 526
 527         return ($thiz);
 528     }
 529
 530     function socks_set($sock, $user, $pendpage)
 531     {
 532         $id = intval($sock);
 533
 534         $this->socks[$id] = $sock;
 535         if ($user != NULL)
 536             $this->s2u[$id]   = $user;
 537         if ($pendpage != NULL)
 538             $this->s2p[$id]   = $pendpage;
 539     }
 540
 541     function socks_unset($sock)
 542     {
 543         $id = intval($sock);
 544
 545         if (isset($this->s2u[$id]))
 546             unset($this->s2u[$id]);
 547         if (isset($this->s2p[$id]))
 548             unset($this->s2p[$id]);
 549         unset($this->socks[$id]);
 550     }
 551
 552     function pendpage_try_addcont(&$new_socket, $tout, $method, $header, $get, $post, $cookie, $path, $addr, $rest, $cont)
 553     {
 554         $pendpage = PendingPage::pendingpage_continue(&$new_socket, $this->curtime, $tout, $method,
 555                                                            $header,           $get, $post, $cookie,
 556                                                              $path,          $addr, $rest, $cont);
 557
 558         $pendpage->try_flush($this->curtime);
 559         // Add $pendpage to the pendpage array (in any case)
 560         fprintf(STDERR, "IMPORTANT: Pendadd: %d\n", $pendpage->status);
 561         $this->pendpage_add($pendpage);
 562     }
 563
 564     function pendpage_try_addflush(&$new_socket, $tout, $enc, $header_out, $content)
 565     {
 566         $pendpage = PendingPage::pendingpage_flushing($new_socket, $this->curtime, $tout, $enc, $header_out, $content);
 567
 568         if ($pendpage->try_flush($this->curtime) == FALSE) {
 569             // Add $pendpage to the pendpage array
 570             $this->pendpage_add($pendpage);
 571         }
 572     }
 573
 574     function pendpage_add($pendpage)
 575     {
 576         array_push($this->pending_pages, $pendpage);
 577         $this->socks_set($pendpage->socket_get(), NULL, $pendpage);
 578     }
 579
 580     function pendpage_rem($pendpage)
 581     {
 582         $sock = $pendpage->socket_get();
 583         if (($key = array_search($pendpage, $this->pending_pages)) !== FALSE) {
 584             unset($this->pending_pages[$key]);
 585         }
 586         else {
 587             fprintf(STDERR, "WARNING: pendpage not found\n");
 588         }
 589         $this->socks_unset($sock);
 590         fprintf(STDERR, "PP_REM: %d\n", intval($sock));
 591     }
 592
 593
 594     function pendpage_try_addwait(&$new_socket, $tout, $method, $header, $get, $post, $cookie, $path, $addr, $rest, $cont)
 595     {
 596         $pendpage = PendingPage::pendingpage_waiting($new_socket, $this->curtime, $tout, $method, $header, $get, $post, $cookie, $path, $addr, $rest, $cont);
 597         /*
 598         if ($pendpage->try_flush($this->curtime) == FALSE) {
 599             // Add $pendpage to the pendpage array
 600             */
 601         $this->pendpage_add($pendpage);
 602         /*
 603         }
 604         */
 605     }
 606
 607     function garbage_manager($force)
 608     {
 609         $this->app->garbage_manager($force);
 610
 611         foreach ($this->socks as $k => $sock) {
 612             $id = intval($sock);
 613             if (isset($this->s2u[$id])) {
 614                 if ($this->s2u[$id]->the_end) {
 615                     if ($this->s2u[$id]->rd_socket_get() != NULL) {
 616                         $this->s2u[$id]->rd_socket_set(NULL);
 617                     }
 618                     unset($this->socks[$id]);
 619                     unset($this->s2u[$id]);
 620                     fclose($sock);
 621                     printf("CLOSE ON GARBAGE MANAGER\n");
 622                 }
 623             }
 624         }
 625         $this->app->users_cleanup();
 626     }
 627
 628     function run()
 629     {
 630         GLOBAL $DOCUMENT_ROOT, $HTTP_HOST;
 631
 632         GLOBAL $G_alarm_passwd, $G_ban_list, $G_black_list, $G_cloud_smasher, $G_provider_proxy;
 633         GLOBAL $G_btrace_pref_sub, $G_dbauth;
 634         GLOBAL $G_dbpfx, $G_donors_all, $G_donors_cur, $G_is_local, $G_lang;
 635         GLOBAL $G_poll_entries, $G_poll_name, $G_poll_title, $G_proxy_white_list;
 636         GLOBAL $G_room_roadmap, $G_shutdown;
 637         GLOBAL $G_splash_content, $G_splash_contents, $G_splash_cont_idx;
 638         GLOBAL $G_splash_h, $G_splash_idx, $G_splash_interval, $G_splash_timeout;
 639         GLOBAL $G_splash_w, $G_topbanner, $G_with_donors, $G_with_poll;
 640         GLOBAL $G_with_splash, $G_sidebanner, $G_sidebanner_idx;
 641         GLOBAL $G_with_topbanner;
 642         GLOBAL $G_tos_vers, $G_tos_fname, $G_tos_dtsoft, $G_tos_dthard, $G_tos_idx, $G_doc_path;
 643
 644         if ($this->main_loop) {
 645             return (FALSE);
 646         }
 647
 648         $this->main_loop = TRUE;
 649
 650         while ($this->main_loop) {
 651             $this->app->sess_cur_set(FALSE);
 652             $this->curtime = time();
 653             fprintf(STDERR, "IN LOOP: Current opened: %d  pending_pages: %d\n", count($this->socks), count($this->pending_pages));
 654
 655             /* Prepare the read array */
 656             /* // when we manage it ... */
 657             /* if ($shutdown)  */
 658             /*     $read   = array_merge(array("$in" => $in), $socks); */
 659             /* else */
 660             $pre_read = array_merge(array(intval($this->list_web) => $this->list_web,
 661                                           intval($this->list_cmd) => $this->list_cmd,
 662                                           intval(static::$cnt_slave) => static::$cnt_slave),
 663                                     $this->socks);
 664             if ($this->is_daemon == FALSE) {
 665                 $read = array_merge($pre_read, array(intval($this->in) => $this->in));
 666             }
 667             else {
 668                 $read = $pre_read;
 669             }
 670
 671             if ($this->debug > 1) {
 672                 printf("PRE_SELECT\n");
 673                 print_r($read);
 674             }
 675             $write  = NULL;
 676             $except = NULL;
 677             $num_changed_sockets = @stream_select($read, $write, $except, 0, 500000);
 678
 679             if ($num_changed_sockets == 0) {
 680                 printf(" no data in 5 secs, splash [%d]\n", $G_with_splash);
 681             }
 682             else if ($num_changed_sockets > 0) {
 683                 printf("num sock %d num_of_socket: %d\n", $num_changed_sockets, count($read));
 684                 if ($this->debug > 1) {
 685                     print_r($read);
 686                 }
 687                 /* At least at one of the sockets something interesting happened */
 688                 foreach ($read as $i => $sock) {
 689                     $id = intval($sock);
 690                     $manage_page = FALSE;
 691                     /* is_resource check is required because there is the possibility that
 692                        during new request an old connection is closed */
 693                     if (!is_resource($sock)) {
 694                         continue;
 695                     }
 696                     if ($sock === $this->list_web) {
 697                         printf("NUOVA CONNEX\n");
 698                         if (($new_unix = stream_socket_accept($this->list_web)) == FALSE) {
 699                             printf("SOCKET_ACCEPT FAILED\n");
 700                             continue;
 701                         }
 702                         $stream_info = "";
 703                         $method      = "";
 704                         $get         = array();
 705                         $post        = array();
 706                         $cookie      = array();
 707                         $rest        = 0;
 708                         $cont        = "";
 709                         if (($new_socket = ancillary_getstream($new_unix, $stream_info)) !== FALSE) {
 710                             printf("NEW_SOCKET: %d\n", intval($new_socket));
 711                             stream_set_blocking($new_socket, $this->blocking_mode); // Set the stream to non-blocking
 712                             printf("RECEIVED HEADER:\n%s", $stream_info);
 713                             if (($path = spu_process_info($stream_info, $method, $header,
 714                                                           $get, $post, $cookie, $rest, $cont))
 715                                 == FALSE) {
 716                                 fprintf(STDERR, "TODO: fix wrong header management\n");
 717                             }
 718                             $addr_full = stream_socket_get_name($new_socket, TRUE);
 719                             // FOR TEST $header['X-Forwarded-For'] = '154.155.22.33';
 720                             $addr = $this->pproxy_realip($header, addrtoipv4($addr_full));
 721
 722                             printf("PATH: [%s] [%s]\n", $path, print_r($header, TRUE));
 723                             if ($method == "POST" && $rest > 0) {
 724                                 if (isset($header['Expect']) && $header['Expect'] == '100-continue') {
 725                                     fprintf(STDERR, "\nPOSTA DE CHE\n\n");
 726                                     $this->pendpage_try_addcont($new_socket, 20,
 727                                                                 $method, $header, $get, $post, $cookie,
 728                                                                 $path, $addr, $rest, $cont);
 729                                 }
 730                                 else {
 731                                     $this->pendpage_try_addwait($new_socket, 20,
 732                                                                 $method, $header, $get, $post, $cookie,
 733                                                                 $path, $addr, $rest, $cont);
 734                                 }
 735                             }
 736                             else {
 737                                 $manage_page = TRUE;
 738                             }
 739
 740                             printf("number of sockets after %d\n", count($this->socks));
 741                         }
 742                         else {
 743                             printf("WARNING: ancillary_getstream failed\n");
 744                         }
 745                     }
 746                     else if ($sock === $this->list_cmd) {
 747                         printf("NUOVA DIRECT CONNEX\n");
 748                         if (($new_unix = stream_socket_accept($this->list_cmd)) == FALSE) {
 749                             printf("SOCKET_ACCEPT FAILED\n");
 750                             continue;
 751                         }
 752                         stream_set_blocking($new_unix, $this->blocking_mode);
 753                         $this->direct_mgmt($new_unix);
 754                     } // not socket_list nor socket_list_cmd
 755                     else {  // already opened socket
 756                         $buf = fread($sock, 4096);
 757                         // if socket is closed
 758                         if ($buf == FALSE || feof($sock)) {
 759                             // close socket case
 760                             if ($buf == FALSE) {
 761                                 printf("INFO: read return false\n");
 762                             }
 763                             if ($sock === $this->list_web) {
 764                                 printf("Arrivati %d bytes da list\n", mb_strlen($buf, "ASCII"));
 765                                 return(21);
 766                             }
 767                             else if ($sock === $this->list_cmd) {
 768                                 printf("Arrivati %d bytes da list_cmd\n", mb_strlen($buf, "ASCII"));
 769                                 return(23);
 770                             }
 771                             else if ($sock === $this->in || $sock === static::$cnt_slave) {
 772                                 printf("Arrivati %d bytes da stdin\n", mb_strlen($buf, "ASCII"));
 773                                 return(22);
 774                             }
 775                             else {
 776                                 unset($this->socks[$id]);
 777                                 if (isset($this->s2u[$id])) {
 778                                     // $user_a[$s2u[$id]]->disable();
 779                                     if ($this->s2u[$id]->rd_socket_get() != NULL) {
 780                                         // try to send close frame (for websocket)
 781                                         $clo = $this->s2u[$id]->stream_close();
 782                                         $clo_l = mb_strlen($clo, "ASCII");
 783                                         @fwrite($sock, $clo, $clo_l);
 784                                         $this->s2u[$id]->rd_socket_set(NULL);
 785                                     }
 786                                     unset($this->s2u[$id]);
 787                                 }
 788                             }
 789                             fclose($sock);
 790                             printf("CLOSE ON READ\n");
 791
 792                             if ($this->debug > 1) {
 793                                 printf("post unset\n");
 794                                 print_r($this->socks);
 795                             }
 796                         }  // if ($buf == FALSE || mb_strlen($buf, "ASCII") == 0) {
 797                         else { // data on the socket
 798                             if ($this->debug > 1) {
 799                                 print_r($read);
 800                             }
 801                             if ($sock === $this->list_web) {
 802                                 printf("Arrivati %d bytes da list\n", mb_strlen($buf, "ASCII"));
 803                             }
 804                             else if ($sock === $this->list_cmd) {
 805                                 printf("Arrivati %d bytes da list_cmd\n", mb_strlen($buf, "ASCII"));
 806                             }
 807                             else if ($sock === $this->in || $sock === static::$cnt_slave) {
 808                                 printf("Arrivati %d bytes da stdin\n", mb_strlen($buf, "ASCII"));
 809                                 $line = trim($buf);
 810                                 if ($line == "reload") {
 811                                     require("$DOCUMENT_ROOT/Etc/".BRISK_CONF);
 812                                     $this->reload(FALSE, $G_provider_proxy);
 813                                     $this->app->reload(FALSE, $G_ban_list, $G_black_list,
 814                                                        $G_cloud_smasher);
 815                                     global_dump();
 816                                 }
 817                                 else if ($line == "shutdown" || $line == "sd") {
 818                                     if ($this->app->dump_data()) {
 819                                         return(0);
 820                                     }
 821                                     else {
 822                                         return(1);
 823                                     }
 824                                 }
 825                             }
 826                             else {  // data arrived from not special socket
 827                                 $key = array_search("$sock", $this->socks);
 828                                 fprintf(STDERR, "Arrivati %d bytes dalla socket n. %d\n", mb_strlen($buf, "ASCII"), $key);
 829                                 if (isset($this->s2p[$id])) {
 830                                     $this->s2p[$id]->rest -= mb_strlen($buf, "ASCII");
 831                                     $this->s2p[$id]->cont .= $buf;
 832                                     if ($this->s2p[$id]->rest <= 0) {
 833                                         $header = $new_socket = $path = $addr = $get = $cookie = 0;
 834                                         $post = array();
 835
 836                                         $this->s2p[$id]->context_get($header, $new_socket, $path, $addr, $get, $post, $cookie);
 837                                         $this->pendpage_rem($this->s2p[$id]);
 838                                         fprintf(STDERR, "SOCKET RUN: %s\n", $new_socket);
 839
 840                                         $manage_page = TRUE;
 841                                     }
 842                                 }
 843                             }
 844                         }
 845                     }
 846
 847                     if ($manage_page == TRUE) {
 848                         printf("M: %s\nHEADER:\n", $method);
 849                         print_r($header);
 850                         printf("GET:\n");
 851                         print_r($get);
 852                         printf("POST:\n");
 853                         print_r($post);
 854                         printf("COOKIE:\n");
 855                         print_r($cookie);
 856
 857                         $header_out = array();
 858                         // TODO: MOVE DOWN request_mgr to factorize new_sockets and POST closed
 859                         $rret = FALSE;
 860                         if (!strncmp($path, SITE_PREFIX, SITE_PREFIX_LEN)) {
 861                             $rret = $this->app->request_mgr($this, $header, $header_out, $new_socket, substr($path, SITE_PREFIX_LEN), $addr, $get, $post, $cookie);
 862                         }
 863                         if ($rret == FALSE) {
 864                             // FIXME: manage 404 !!!
 865                             printf("TODO: fix unknown page\n");
 866                             fclose($new_socket);
 867                         }
 868                     }
 869                 }
 870             }
 871
 872             $this->garbage_manager(FALSE);
 873
 874             /* manage unfinished pages */
 875             foreach ($this->pending_pages as $k => $pendpage) {
 876                 // TODO: try_flush if exists in the class
 877                 if ($pendpage->try_flush($this->curtime) == TRUE) {
 878                     unset($this->pending_pages[$k]);
 879                 }
 880             }
 881
 882             /*
 883                $response:                        raw stream data not sent
 884                $content:                         html consistent data (<script bla bla>)
 885                $user->stream_keepalive($w_ping)  ping srv->cli OR srv->cli + cli->srv if $w_ping == TRUE
 886             */
 887
 888             /* manage open streaming */
 889             foreach ($this->socks as $k => $sock) {
 890                 $id = intval($sock);
 891                 if (isset($this->s2u[$id])) {
 892                     $user = $this->s2u[$id];
 893
 894                     if ($user->rd_toflush) {
 895                         if (fflush($sock) == FALSE)
 896                             continue;
 897                         else
 898                             $user->rd_toflush = FALSE;
 899                     }
 900                     $response = $user->rd_cache_get();
 901                     $do_ping = FALSE;
 902                     if (($this->curtime - $user->lacc) > (EXPIRE_TIME_RD / 3)) {
 903                         $do_ping = TRUE;
 904                     }
 905                     else {
 906                         $user->ping_req = FALSE;
 907                     }
 908
 909                     if ($response == "") {
 910                         $content = "";
 911                         $user->stream_main($content, $get, $post, $cookie);
 912                         printf("[%s] [%d] [%d]\n", $user->name, $user->lacc, $this->curtime);
 913                         if ($do_ping && $user->ping_req == FALSE) {
 914                             $content .= $user->stream_keepalive(TRUE);
 915                             $user->ping_req = TRUE;
 916                         }
 917                         else if ($content == "" && $user->rd_kalive_is_expired($this->curtime)) {
 918                             $content = $user->stream_keepalive(FALSE);
 919                         }
 920                         if ($content != "") {
 921                             $response = $user->chunked_content($content);
 922                         }
 923                     }
 924
 925                     if ($response != "") {
 926                         // echo "SPIA: [".substr($response, 0, 60)."...]\n";
 927                         // echo "SPIA: [".$response."]\n";
 928                         $response_l = mb_strlen($response, "ASCII");
 929                         $wret = @fwrite($sock, $response, $response_l);
 930                         if ($wret < $response_l) {
 931                             printf("TROUBLE WITH FWRITE: %d\n", $wret);
 932                             $user->rd_cache_set(mb_substr($response, $wret, $response_l - $wret, "ASCII"));
 933                         }
 934                         else {
 935                             $user->rd_cache_set("");
 936                         }
 937                         if (fflush($sock) == FALSE) {
 938                             $user->rd_toflush = TRUE;
 939                             continue;
 940                         }
 941                         $user->rd_kalive_reset($this->curtime);
 942                     }
 943
 944                     // close socket after a while to prevent client memory consumption
 945                     if ($user->rd_endtime_is_expired($this->curtime)) {
 946                         if ($this->s2u[$id]->rd_socket_get() != NULL) {
 947                             $this->s2u[$id]->rd_socket_set(NULL);
 948                         }
 949                         unset($this->socks[$id]);
 950                         unset($this->s2u[$id]);
 951                         $clo = $user->stream_close();
 952                         $clo_l = mb_strlen($clo, "ASCII");
 953                         @fwrite($sock, $clo, $clo_l);
 954                         fclose($sock);
 955                         printf("CLOSE ON LOOP\n");
 956                     }
 957                 }  // if (isset($this->s2u[$id]...
 958             }  // foreach ($this->socks...
 959             printf("\n");
 960             if (defined('CURL_DE_SAC_VERS')) {
 961                 $this->app->cds->process();
 962             }
 963         }  // while (...
 964     }  // function run(...
 965
 966     function pproxy_realip(&$header, $ip_str)
 967     {
 968         return ($this->provider_proxy->realip($header, $ip_str));
 969     }
 970
 971     function reload($is_first, $prov_proxy)
 972     {
 973         fprintf(STDERR, "SAP RELOAD STUFF (%d)\n", count($prov_proxy));
 974
 975         $this->provider_proxy->update($prov_proxy);
 976     }
 977
 978     function direct_command($cmdstr)
 979     {
 980         GLOBAL $G_alarm_passwd;
 981
 982         $cmd = cmd_deserialize($cmdstr);
 983
 984         if (!isset($cmd['cmd'])) {
 985             return cmd_return(500, 'no cmd found');
 986         }
 987         // "cmd" => "userauth", "sess" => 'xxxxxxxxxxx', 'private' => 'it_must_be_correct',
 988         //           'the_end' => 'true' );
 989         // cmd=userauth&sess=52d796ac08c47&private=yourpasswd192.168.122.152d796ac08c47&the_end=true
 990         if ($cmd['cmd'] == 'userauth') {
 991             if (!isset($cmd['sess']) || !isset($cmd['private'])) {
 992                 return cmd_return(401, 'malformed cmd');
 993             }
 994             $idx = -1;
 995             if (($user = $this->app->get_user($cmd['sess'], &$idx)) == FALSE)
 996                 return cmd_return(402, 'user not found');
 997
 998             if (($user->flags & USER_FLAG_TY_ADMIN) == 0x00)
 999                 return cmd_return(403, 'permission denied');
1000
1001             if (md5($G_alarm_passwd.$user->ip.$user->sess) != $cmd['private'])
1002                 return cmd_return(404, 'authentication failed ['.$cmd['private'].']['.$G_alarm_passwd.$user->ip.$user->sess.']');
1003
1004             return cmd_return(200, 'success');
1005         }
1006
1007         return cmd_return(501, 'no cmd found');
1008     }
1009
1010     function direct_mgmt($socket)
1011     {
1012         printf("DIRECT: begin\n");
1013         $st = DIRECT_ST_READ;
1014         $cmd_all = "";
1015         $endtime = $this->curtime + 3;
1016
1017         while(time() <= $endtime) {
1018             printf("DIRECT: init loop %d\n", $st);
1019             if ($st == DIRECT_ST_READ) {
1020                 $buf = fread($socket, 4096);
1021                 if ($buf == FALSE && feof($socket)) {
1022                     break;
1023                 }
1024                 else if ($buf != FALSE && strlen($buf) > 0) {
1025                     $cmd_all .= $buf;
1026
1027                     if (substr(trim($cmd_all), -13) == "&the_end=true") {
1028                         $output_arr = $this->direct_command($cmd_all);
1029                         $output = cmd_serialize($output_arr);
1030                         $output_cur = 0;
1031                         $output_len = mb_strlen($output, "ASCII");
1032                         $st = DIRECT_ST_WRITE;
1033                         continue;
1034                     }
1035                 }
1036             }
1037             else if ($st == DIRECT_ST_WRITE)  {
1038                 $ret = fwrite($socket, $output, $output_len);
1039                 if ($ret === FALSE) {
1040                     if (feof($socket)) {
1041                         break;
1042                     }
1043                 }
1044                 else if ($ret > 0 && $ret < $output_len) {
1045                     $output = substr($output, -($output_len - $ret));
1046                     $output_len -= $ret;
1047                     continue;
1048                 }
1049                 else if ($ret == $output_len) {
1050                     fclose($socket);
1051                     return TRUE;
1052                 }
1053             }
1054             usleep(10000);
1055         }
1056
1057         fclose($socket);
1058         return FALSE;
1059     }
1060 } // class Sac_a_push
1061 ?>