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, $argv)
 459     {
 460         GLOBAL $G_provider_proxy;
 461
 462         $thiz = new Sac_a_push();
 463
 464         $thiz->app = $app;
 465
 466         $thiz->provider_proxy = ProviderProxy::create();
 467
 468         $thiz->file_socket = $sockname;
 469         $thiz->unix_socket = "unix://$sockname";
 470         $thiz->direct_socket = "unix://${sockname}2";
 471         $thiz->debug = $debug;
 472         $thiz->socks = array();
 473         $thiz->s2u  = array();
 474         $thiz->s2p  = array();
 475         $thiz->pending_pages = array();
 476         $thiz->is_daemon = FALSE;
 477
 478         if (array_search("-d", $argv) !== FALSE || array_search("--daemon", $argv) !== FALSE) {
 479             $thiz->is_daemon = TRUE;
 480         }
 481
 482         // create a couple of sockets for control management
 483         if (($sockpair = stream_socket_pair(STREAM_PF_UNIX, STREAM_SOCK_STREAM,
 484                                             STREAM_IPPROTO_IP)) == FALSE) {
 485             return FALSE;
 486         }
 487         static::$cnt_master = $sockpair[0];
 488         static::$cnt_slave  = $sockpair[1];
 489
 490         pcntl_signal(SIGTERM, array("Sac_a_push", "sig_handler"));
 491         pcntl_signal(SIGINT, array("Sac_a_push", "sig_handler"));
 492         pcntl_signal(SIGHUP, array("Sac_a_push", "sig_handler"));
 493
 494         $thiz->blocking_mode = 0; // 0 for non-blocking
 495
 496         $thiz->rndstr = "";
 497         for ($i = 0 ; $i < 4096 ; $i++) {
 498             if (($i % 128) == 0)
 499                 $thiz->rndstr .= " ";
 500             else
 501                 $thiz->rndstr .= chr(mt_rand(65, 90));
 502         }
 503
 504         if (file_exists($thiz->file_socket)) {
 505             unlink($thiz->file_socket);
 506         }
 507         if (file_exists($thiz->file_socket."2")) {
 508             unlink($thiz->file_socket."2");
 509         }
 510
 511         $old_umask = umask(0);
 512         if (($thiz->list_web = stream_socket_server($thiz->unix_socket, $err, $errs)) === FALSE) {
 513             return (FALSE);
 514         }
 515         if (($thiz->list_cmd = stream_socket_server($thiz->direct_socket, $err, $errs)) === FALSE) {
 516             return (FALSE);
 517         }
 518         umask($old_umask);
 519         stream_set_blocking($thiz->list_web, $thiz->blocking_mode); # Set the stream to non-blocking
 520         stream_set_blocking($thiz->list_cmd, $thiz->blocking_mode); # Set the stream to non-blocking
 521
 522         if (($thiz->in = fopen("php://stdin", "r")) === FALSE) {
 523             return(FALSE);
 524         }
 525
 526         $thiz->main_loop = FALSE;
 527         $thiz->reload(TRUE, $G_provider_proxy);
 528
 529         return ($thiz);
 530     }
 531
 532     function socks_set($sock, $user, $pendpage)
 533     {
 534         $id = intval($sock);
 535
 536         $this->socks[$id] = $sock;
 537         if ($user != NULL)
 538             $this->s2u[$id]   = $user;
 539         if ($pendpage != NULL)
 540             $this->s2p[$id]   = $pendpage;
 541     }
 542
 543     function socks_unset($sock)
 544     {
 545         $id = intval($sock);
 546
 547         if (isset($this->s2u[$id]))
 548             unset($this->s2u[$id]);
 549         if (isset($this->s2p[$id]))
 550             unset($this->s2p[$id]);
 551         unset($this->socks[$id]);
 552     }
 553
 554     function pendpage_try_addcont(&$new_socket, $tout, $method, $header, $get, $post, $cookie, $path, $addr, $rest, $cont)
 555     {
 556         $pendpage = PendingPage::pendingpage_continue(&$new_socket, $this->curtime, $tout, $method,
 557                                                            $header,           $get, $post, $cookie,
 558                                                              $path,          $addr, $rest, $cont);
 559
 560         $pendpage->try_flush($this->curtime);
 561         // Add $pendpage to the pendpage array (in any case)
 562         fprintf(STDERR, "IMPORTANT: Pendadd: %d\n", $pendpage->status);
 563         $this->pendpage_add($pendpage);
 564     }
 565
 566     function pendpage_try_addflush(&$new_socket, $tout, $enc, $header_out, $content)
 567     {
 568         $pendpage = PendingPage::pendingpage_flushing($new_socket, $this->curtime, $tout, $enc, $header_out, $content);
 569
 570         if ($pendpage->try_flush($this->curtime) == FALSE) {
 571             // Add $pendpage to the pendpage array
 572             $this->pendpage_add($pendpage);
 573         }
 574     }
 575
 576     function pendpage_add($pendpage)
 577     {
 578         array_push($this->pending_pages, $pendpage);
 579         $this->socks_set($pendpage->socket_get(), NULL, $pendpage);
 580     }
 581
 582     function pendpage_rem($pendpage)
 583     {
 584         $sock = $pendpage->socket_get();
 585         if (($key = array_search($pendpage, $this->pending_pages)) !== FALSE) {
 586             unset($this->pending_pages[$key]);
 587         }
 588         else {
 589             fprintf(STDERR, "WARNING: pendpage not found\n");
 590         }
 591         $this->socks_unset($sock);
 592         fprintf(STDERR, "PP_REM: %d\n", intval($sock));
 593     }
 594
 595
 596     function pendpage_try_addwait(&$new_socket, $tout, $method, $header, $get, $post, $cookie, $path, $addr, $rest, $cont)
 597     {
 598         $pendpage = PendingPage::pendingpage_waiting($new_socket, $this->curtime, $tout, $method, $header, $get, $post, $cookie, $path, $addr, $rest, $cont);
 599         /*
 600         if ($pendpage->try_flush($this->curtime) == FALSE) {
 601             // Add $pendpage to the pendpage array
 602             */
 603         $this->pendpage_add($pendpage);
 604         /*
 605         }
 606         */
 607     }
 608
 609     function garbage_manager($force)
 610     {
 611         $this->app->garbage_manager($force);
 612
 613         foreach ($this->socks as $k => $sock) {
 614             $id = intval($sock);
 615             if (isset($this->s2u[$id])) {
 616                 if ($this->s2u[$id]->the_end) {
 617                     if ($this->s2u[$id]->rd_socket_get() != NULL) {
 618                         $this->s2u[$id]->rd_socket_set(NULL);
 619                     }
 620                     unset($this->socks[$id]);
 621                     unset($this->s2u[$id]);
 622                     fclose($sock);
 623                     printf("CLOSE ON GARBAGE MANAGER\n");
 624                 }
 625             }
 626         }
 627         $this->app->users_cleanup();
 628     }
 629
 630     function run()
 631     {
 632         GLOBAL $DOCUMENT_ROOT, $HTTP_HOST;
 633
 634         GLOBAL $G_alarm_passwd, $G_ban_list, $G_black_list, $G_cloud_smasher, $G_provider_proxy;
 635         GLOBAL $G_btrace_pref_sub, $G_dbauth;
 636         GLOBAL $G_dbpfx, $G_donors_all, $G_donors_cur, $G_is_local, $G_lang;
 637         GLOBAL $G_poll_entries, $G_poll_name, $G_poll_title, $G_proxy_white_list;
 638         GLOBAL $G_room_roadmap, $G_shutdown;
 639         GLOBAL $G_splash_content, $G_splash_contents, $G_splash_cont_idx;
 640         GLOBAL $G_splash_h, $G_splash_idx, $G_splash_interval, $G_splash_timeout;
 641         GLOBAL $G_splash_w, $G_topbanner, $G_with_donors, $G_with_poll;
 642         GLOBAL $G_with_splash, $G_sidebanner, $G_sidebanner_idx;
 643         GLOBAL $G_with_topbanner;
 644         GLOBAL $G_tos_vers, $G_tos_fname, $G_tos_dtsoft, $G_tos_dthard, $G_tos_idx, $G_doc_path;
 645
 646         if ($this->main_loop) {
 647             return (FALSE);
 648         }
 649
 650         $this->main_loop = TRUE;
 651
 652         while ($this->main_loop) {
 653             $this->app->sess_cur_set(FALSE);
 654             $this->curtime = time();
 655             fprintf(STDERR, "IN LOOP: Current opened: %d  pending_pages: %d\n", count($this->socks), count($this->pending_pages));
 656
 657             /* Prepare the read array */
 658             /* // when we manage it ... */
 659             /* if ($shutdown)  */
 660             /*     $read   = array_merge(array("$in" => $in), $socks); */
 661             /* else */
 662             $pre_read = array_merge(array(intval($this->list_web) => $this->list_web,
 663                                           intval($this->list_cmd) => $this->list_cmd,
 664                                           intval(static::$cnt_slave) => static::$cnt_slave),
 665                                     $this->socks);
 666             if ($this->is_daemon == FALSE) {
 667                 $read = array_merge($pre_read, array(intval($this->in) => $this->in));
 668             }
 669             else {
 670                 $read = $pre_read;
 671             }
 672
 673             if ($this->debug > 1) {
 674                 printf("PRE_SELECT\n");
 675                 print_r($read);
 676             }
 677             $write  = NULL;
 678             $except = NULL;
 679             $num_changed_sockets = @stream_select($read, $write, $except, 0, 500000);
 680
 681             if ($num_changed_sockets == 0) {
 682                 printf(" no data in 5 secs, splash [%d]\n", $G_with_splash);
 683             }
 684             else if ($num_changed_sockets > 0) {
 685                 printf("num sock %d num_of_socket: %d\n", $num_changed_sockets, count($read));
 686                 if ($this->debug > 1) {
 687                     print_r($read);
 688                 }
 689                 /* At least at one of the sockets something interesting happened */
 690                 foreach ($read as $i => $sock) {
 691                     $id = intval($sock);
 692                     $manage_page = FALSE;
 693                     /* is_resource check is required because there is the possibility that
 694                        during new request an old connection is closed */
 695                     if (!is_resource($sock)) {
 696                         continue;
 697                     }
 698                     if ($sock === $this->list_web) {
 699                         printf("NUOVA CONNEX\n");
 700                         if (($new_unix = stream_socket_accept($this->list_web)) == FALSE) {
 701                             printf("SOCKET_ACCEPT FAILED\n");
 702                             continue;
 703                         }
 704                         $stream_info = "";
 705                         $method      = "";
 706                         $get         = array();
 707                         $post        = array();
 708                         $cookie      = array();
 709                         $rest        = 0;
 710                         $cont        = "";
 711                         if (($new_socket = ancillary_getstream($new_unix, $stream_info)) !== FALSE) {
 712                             printf("NEW_SOCKET: %d\n", intval($new_socket));
 713                             stream_set_blocking($new_socket, $this->blocking_mode); // Set the stream to non-blocking
 714                             printf("RECEIVED HEADER:\n%s", $stream_info);
 715                             if (($path = spu_process_info($stream_info, $method, $header,
 716                                                           $get, $post, $cookie, $rest, $cont))
 717                                 == FALSE) {
 718                                 fprintf(STDERR, "TODO: fix wrong header management\n");
 719                             }
 720                             $addr_full = stream_socket_get_name($new_socket, TRUE);
 721                             // FOR TEST $header['X-Forwarded-For'] = '154.155.22.33';
 722                             $addr = $this->pproxy_realip($header, addrtoipv4($addr_full));
 723
 724                             printf("PATH: [%s]\n", $path);
 725                             if ($method == "POST" && $rest > 0) {
 726                                 if (isset($header['Expect']) && $header['Expect'] == '100-continue') {
 727                                     fprintf(STDERR, "\nPOSTA DE CHE\n\n");
 728                                     $this->pendpage_try_addcont($new_socket, 20,
 729                                                                 $method, $header, $get, $post, $cookie,
 730                                                                 $path, $addr, $rest, $cont);
 731                                 }
 732                                 else {
 733                                     $this->pendpage_try_addwait($new_socket, 20,
 734                                                                 $method, $header, $get, $post, $cookie,
 735                                                                 $path, $addr, $rest, $cont);
 736                                 }
 737                             }
 738                             else {
 739                                 $manage_page = TRUE;
 740                             }
 741
 742                             printf("number of sockets after %d\n", count($this->socks));
 743                         }
 744                         else {
 745                             printf("WARNING: ancillary_getstream failed\n");
 746                         }
 747                     }
 748                     else if ($sock === $this->list_cmd) {
 749                         printf("NUOVA DIRECT CONNEX\n");
 750                         if (($new_unix = stream_socket_accept($this->list_cmd)) == FALSE) {
 751                             printf("SOCKET_ACCEPT FAILED\n");
 752                             continue;
 753                         }
 754                         stream_set_blocking($new_unix, $this->blocking_mode);
 755                         $this->direct_mgmt($new_unix);
 756                     } // not socket_list nor socket_list_cmd
 757                     else {  // already opened socket
 758                         $buf = fread($sock, 4096);
 759                         // if socket is closed
 760                         if ($buf == FALSE || feof($sock)) {
 761                             // close socket case
 762                             if ($buf == FALSE) {
 763                                 printf("INFO: read return false\n");
 764                             }
 765                             if ($sock === $this->list_web) {
 766                                 printf("Arrivati %d bytes da list\n", mb_strlen($buf, "ASCII"));
 767                                 return(21);
 768                             }
 769                             else if ($sock === $this->list_cmd) {
 770                                 printf("Arrivati %d bytes da list_cmd\n", mb_strlen($buf, "ASCII"));
 771                                 return(23);
 772                             }
 773                             else if ($sock === $this->in || $sock === static::$cnt_slave) {
 774                                 printf("Arrivati %d bytes da stdin\n", mb_strlen($buf, "ASCII"));
 775                                 return(22);
 776                             }
 777                             else {
 778                                 unset($this->socks[$id]);
 779                                 if (isset($this->s2u[$id])) {
 780                                     // $user_a[$s2u[$id]]->disable();
 781                                     if ($this->s2u[$id]->rd_socket_get() != NULL) {
 782                                         // try to send close frame (for websocket)
 783                                         $clo = $this->s2u[$id]->stream_close();
 784                                         $clo_l = mb_strlen($clo, "ASCII");
 785                                         @fwrite($sock, $clo, $clo_l);
 786                                         $this->s2u[$id]->rd_socket_set(NULL);
 787                                     }
 788                                     unset($this->s2u[$id]);
 789                                 }
 790                             }
 791                             fclose($sock);
 792                             printf("CLOSE ON READ\n");
 793
 794                             if ($this->debug > 1) {
 795                                 printf("post unset\n");
 796                                 print_r($this->socks);
 797                             }
 798                         }  // if ($buf == FALSE || mb_strlen($buf, "ASCII") == 0) {
 799                         else { // data on the socket
 800                             if ($this->debug > 1) {
 801                                 print_r($read);
 802                             }
 803                             if ($sock === $this->list_web) {
 804                                 printf("Arrivati %d bytes da list\n", mb_strlen($buf, "ASCII"));
 805                             }
 806                             else if ($sock === $this->list_cmd) {
 807                                 printf("Arrivati %d bytes da list_cmd\n", mb_strlen($buf, "ASCII"));
 808                             }
 809                             else if ($sock === $this->in || $sock === static::$cnt_slave) {
 810                                 printf("Arrivati %d bytes da stdin\n", mb_strlen($buf, "ASCII"));
 811                                 $line = trim($buf);
 812                                 if ($line == "reload") {
 813                                     require("$DOCUMENT_ROOT/Etc/".BRISK_CONF);
 814                                     $this->reload(FALSE, $G_provider_proxy);
 815                                     $this->app->reload(FALSE, $G_ban_list, $G_black_list,
 816                                                        $G_cloud_smasher);
 817                                     global_dump();
 818                                 }
 819                                 else if ($line == "shutdown" || $line == "sd") {
 820                                     if ($this->app->dump_data()) {
 821                                         return(0);
 822                                     }
 823                                     else {
 824                                         return(1);
 825                                     }
 826                                 }
 827                             }
 828                             else {  // data arrived from not special socket
 829                                 $key = array_search("$sock", $this->socks);
 830                                 fprintf(STDERR, "Arrivati %d bytes dalla socket n. %d\n", mb_strlen($buf, "ASCII"), $key);
 831                                 if (isset($this->s2p[$id])) {
 832                                     $this->s2p[$id]->rest -= mb_strlen($buf, "ASCII");
 833                                     $this->s2p[$id]->cont .= $buf;
 834                                     if ($this->s2p[$id]->rest <= 0) {
 835                                         $header = $new_socket = $path = $addr = $get = $cookie = 0;
 836                                         $post = array();
 837
 838                                         $this->s2p[$id]->context_get($header, $new_socket, $path, $addr, $get, $post, $cookie);
 839                                         $this->pendpage_rem($this->s2p[$id]);
 840                                         fprintf(STDERR, "SOCKET RUN: %s\n", $new_socket);
 841
 842                                         $manage_page = TRUE;
 843                                     }
 844                                 }
 845                             }
 846                         }
 847                     }
 848
 849                     if ($manage_page == TRUE) {
 850                         printf("M: %s\nHEADER:\n", $method);
 851                         print_r($header);
 852                         printf("GET:\n");
 853                         print_r($get);
 854                         printf("POST:\n");
 855                         print_r($post);
 856                         printf("COOKIE:\n");
 857                         print_r($cookie);
 858
 859                         $header_out = array();
 860                         // TODO: MOVE DOWN request_mgr to factorize new_sockets and POST closed
 861                         $rret = FALSE;
 862                         if (!strncmp($path, SITE_PREFIX, SITE_PREFIX_LEN)) {
 863                             $rret = $this->app->request_mgr($this, $header, $header_out, $new_socket, substr($path, SITE_PREFIX_LEN), $addr, $get, $post, $cookie);
 864                         }
 865                         if ($rret == FALSE) {
 866                             // FIXME: manage 404 !!!
 867                             printf("TODO: fix unknown page\n");
 868                             fclose($new_socket);
 869                         }
 870                     }
 871                 }
 872             }
 873
 874             $this->garbage_manager(FALSE);
 875
 876             /* manage unfinished pages */
 877             foreach ($this->pending_pages as $k => $pendpage) {
 878                 // TODO: try_flush if exists in the class
 879                 if ($pendpage->try_flush($this->curtime) == TRUE) {
 880                     unset($this->pending_pages[$k]);
 881                 }
 882             }
 883
 884             /*
 885                $response:                        raw stream data not sent
 886                $content:                         html consistent data (<script bla bla>)
 887                $user->stream_keepalive($w_ping)  ping srv->cli OR srv->cli + cli->srv if $w_ping == TRUE
 888             */
 889
 890             /* manage open streaming */
 891             foreach ($this->socks as $k => $sock) {
 892                 $id = intval($sock);
 893                 if (isset($this->s2u[$id])) {
 894                     $user = $this->s2u[$id];
 895
 896                     if ($user->rd_toflush) {
 897                         if (fflush($sock) == FALSE)
 898                             continue;
 899                         else
 900                             $user->rd_toflush = FALSE;
 901                     }
 902                     $response = $user->rd_cache_get();
 903                     $do_ping = FALSE;
 904                     if (($this->curtime - $user->lacc) > (EXPIRE_TIME_RD / 3)) {
 905                         $do_ping = TRUE;
 906                     }
 907                     else {
 908                         $user->ping_req = FALSE;
 909                     }
 910
 911                     if ($response == "") {
 912                         $content = "";
 913                         $user->stream_main($content, $get, $post, $cookie);
 914                         printf("[%s] [%d] [%d]\n", $user->name, $user->lacc, $this->curtime);
 915                         if ($do_ping && $user->ping_req == FALSE) {
 916                             $content .= $user->stream_keepalive(TRUE);
 917                             $user->ping_req = TRUE;
 918                         }
 919                         else if ($content == "" && $user->rd_kalive_is_expired($this->curtime)) {
 920                             $content = $user->stream_keepalive(FALSE);
 921                         }
 922                         if ($content != "") {
 923                             $response = $user->chunked_content($content);
 924                         }
 925                     }
 926
 927                     if ($response != "") {
 928                         // echo "SPIA: [".substr($response, 0, 60)."...]\n";
 929                         // echo "SPIA: [".$response."]\n";
 930                         $response_l = mb_strlen($response, "ASCII");
 931                         $wret = @fwrite($sock, $response, $response_l);
 932                         if ($wret < $response_l) {
 933                             printf("TROUBLE WITH FWRITE: %d\n", $wret);
 934                             $user->rd_cache_set(mb_substr($response, $wret, $response_l - $wret, "ASCII"));
 935                         }
 936                         else {
 937                             $user->rd_cache_set("");
 938                         }
 939                         if (fflush($sock) == FALSE) {
 940                             $user->rd_toflush = TRUE;
 941                             continue;
 942                         }
 943                         $user->rd_kalive_reset($this->curtime);
 944                     }
 945
 946                     // close socket after a while to prevent client memory consumption
 947                     if ($user->rd_endtime_is_expired($this->curtime)) {
 948                         if ($this->s2u[$id]->rd_socket_get() != NULL) {
 949                             $this->s2u[$id]->rd_socket_set(NULL);
 950                         }
 951                         unset($this->socks[$id]);
 952                         unset($this->s2u[$id]);
 953                         $clo = $user->stream_close();
 954                         $clo_l = mb_strlen($clo, "ASCII");
 955                         @fwrite($sock, $clo, $clo_l);
 956                         fclose($sock);
 957                         printf("CLOSE ON LOOP\n");
 958                     }
 959                 }  // if (isset($this->s2u[$id]...
 960             }  // foreach ($this->socks...
 961             printf("\n");
 962             if (defined('CURL_DE_SAC_VERS')) {
 963                 $this->app->cds->process();
 964             }
 965         }  // while (...
 966     }  // function run(...
 967
 968     function pproxy_realip($header, $ip_str)
 969     {
 970         return ($this->provider_proxy->realip($header, $ip_str));
 971     }
 972
 973     function reload($is_first, $prov_proxy)
 974     {
 975         fprintf(STDERR, "SAP RELOAD STUFF (%d)\n", count($prov_proxy));
 976
 977         $this->provider_proxy->update($prov_proxy);
 978     }
 979
 980     function direct_command($cmdstr)
 981     {
 982         GLOBAL $G_alarm_passwd;
 983
 984         $cmd = cmd_deserialize($cmdstr);
 985
 986         if (!isset($cmd['cmd'])) {
 987             return cmd_return(500, 'no cmd found');
 988         }
 989         // "cmd" => "userauth", "sess" => 'xxxxxxxxxxx', 'private' => 'it_must_be_correct',
 990         //           'the_end' => 'true' );
 991         // cmd=userauth&sess=52d796ac08c47&private=yourpasswd192.168.122.152d796ac08c47&the_end=true
 992         if ($cmd['cmd'] == 'userauth') {
 993             if (!isset($cmd['sess']) || !isset($cmd['private'])) {
 994                 return cmd_return(401, 'malformed cmd');
 995             }
 996             $idx = -1;
 997             if (($user = $this->app->get_user($cmd['sess'], &$idx)) == FALSE)
 998                 return cmd_return(402, 'user not found');
 999
1000             if (($user->flags & USER_FLAG_TY_ADMIN) == 0x00)
1001                 return cmd_return(403, 'permission denied');
1002
1003             if (md5($G_alarm_passwd.$user->ip.$user->sess) != $cmd['private'])
1004                 return cmd_return(404, 'authentication failed ['.$cmd['private'].']['.$G_alarm_passwd.$user->ip.$user->sess.']');
1005
1006             return cmd_return(200, 'success');
1007         }
1008
1009         return cmd_return(501, 'no cmd found');
1010     }
1011
1012     function direct_mgmt($socket)
1013     {
1014         printf("DIRECT: begin\n");
1015         $st = DIRECT_ST_READ;
1016         $cmd_all = "";
1017         $endtime = $this->curtime + 3;
1018
1019         while(time() <= $endtime) {
1020             printf("DIRECT: init loop %d\n", $st);
1021             if ($st == DIRECT_ST_READ) {
1022                 $buf = fread($socket, 4096);
1023                 if ($buf == FALSE && feof($socket)) {
1024                     break;
1025                 }
1026                 else if ($buf != FALSE && strlen($buf) > 0) {
1027                     $cmd_all .= $buf;
1028
1029                     if (substr(trim($cmd_all), -13) == "&the_end=true") {
1030                         $output_arr = $this->direct_command($cmd_all);
1031                         $output = cmd_serialize($output_arr);
1032                         $output_cur = 0;
1033                         $output_len = mb_strlen($output, "ASCII");
1034                         $st = DIRECT_ST_WRITE;
1035                         continue;
1036                     }
1037                 }
1038             }
1039             else if ($st == DIRECT_ST_WRITE)  {
1040                 $ret = fwrite($socket, $output, $output_len);
1041                 if ($ret === FALSE) {
1042                     if (feof($socket)) {
1043                         break;
1044                     }
1045                 }
1046                 else if ($ret > 0 && $ret < $output_len) {
1047                     $output = substr($output, -($output_len - $ret));
1048                     $output_len -= $ret;
1049                     continue;
1050                 }
1051                 else if ($ret == $output_len) {
1052                     fclose($socket);
1053                     return TRUE;
1054                 }
1055             }
1056             usleep(10000);
1057         }
1058
1059         fclose($socket);
1060         return FALSE;
1061     }
1062 } // class Sac_a_push
1063 ?>