web/spush/brisk-spush.php

   1 #!/usr/bin/php
   2 <?php
   3 /*
   4  *  brisk - spush/brisk-spush.php
   5  *
   6  *  Copyright (C) 2012 Matteo Nastasi
   7  *                          mailto: nastasi@alternativeoutput.it
   8  *                                  matteo.nastasi@milug.org
   9  *                          web: http://www.alternativeoutput.it
  10  *
  11  * This program is free software; you can redistribute it and/or modify
  12  * it under the terms of the GNU General Public License as published by
  13  * the Free Software Foundation; either version 2 of the License, or
  14  * (at your option) any later version.
  15  *
  16  * This program is distributed in the hope that it will be useful, but
  17  * WITHOUT ANY WARRANTY; without even the implied warranty of
  18  * MERCHANTABLILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
  19  * General Public License for more details. You should have received a
  20  * copy of the GNU General Public License along with this program; if
  21  * not, write to the Free Software Foundation, Inc, 59 Temple Place -
  22  * Suite 330, Boston, MA 02111-1307, USA.
  23  *
  24  * TODO
  25  *
  26  *   - fwrite other issues
  27  *   - run tables
  28  *   - setcookie (for tables only)
  29  *   - keepalive management
  30  *   - chunked
  31  *
  32  *   DONE/FROZEN - problema con getpeer (HOSTADDR)
  33  *
  34  *   DONE - index_rd_ifra: last_clean issue
  35  *   DONE - fwrite failed error management (select, buffer where store unsent data, and fwrite check and retry)
  36  *   ABRT - index_wr.php::reload - reload is js-only function
  37  *   DONE - bug: after restart index_rd.php receive from prev clients a lot of req
  38  *   DONE - index_wr.php::chat
  39  *   DONE - index_wr.php::exit
  40  *   DONE - index_rd.php porting
  41  *   DONE - generic var management from internet
  42  *   DONE - index.php auth part
  43  */
  44
  45 $G_base = "../";
  46
  47 require_once("./sac-a-push.phh");
  48 require_once("./brisk-spush.phh");
  49 require_once($G_base."Obj/brisk.phh");
  50 require_once($G_base."Obj/auth.phh");
  51 // require_once("../Obj/proxyscan.phh");
  52 require_once($G_base."index.php");
  53 require_once($G_base."index_wr.php");
  54 require_once($G_base."index_rd_ifra.php");
  55 require_once($G_base."briskin5/Obj/briskin5.phh");
  56
  57 define('SITE_PREFIX', '/brisk/');
  58
  59 function headers_render($header)
  60 {
  61
  62     $s = "";
  63     $s .= "HTTP/1.1 200 OK\r\n";
  64     if (!isset($header['Date']))
  65         $s .= sprintf("Date: %s\r\n", date(DATE_RFC822));
  66     if (!isset($header['Connection']))
  67         $s .= "Connection: close\r\n";
  68     if (!isset($header['Content-Type']))
  69         $s .= "Content-Type: text/html\r\n";
  70     foreach($header as $key => $value) {
  71         $s .= sprintf("%s: %s\r\n", $key, $value);
  72     }
  73     $s .= "Mop: was/here\r\n";
  74     $s .= "\r\n";
  75
  76     return ($s);
  77 }
  78
  79 /*
  80  *  Caching system using ob php system to cache old style pages
  81  *  to a var and than send it with more calm
  82  */
  83 $G_headers = "";
  84
  85 function shutta()
  86 {
  87   log_rd2("SHUTTA [".connection_status()."] !");
  88 }
  89
  90 register_shutdown_function('shutta');
  91
  92 /*
  93  *  MAIN
  94  */
  95 $shutdown = FALSE;
  96
  97 function main()
  98 {
  99     GLOBAL $G_headers;
 100     GLOBAL $shutdown;
 101     $main_loop = TRUE;
 102
 103     /*
 104      *  INIT
 105      */
 106
 107     $FILE_SOCKET = "/tmp/brisk.sock";
 108     $UNIX_SOCKET = "unix://$FILE_SOCKET";
 109     $debug = 0;
 110     $fixed_fd = 2;
 111     $socks = array();
 112
 113     $blocking_mode = 0; // 0 for non-blocking
 114
 115     if (($room = Room::create()) == FALSE) {
 116         log_crit("load_data failed");
 117         return FALSE;
 118     }
 119
 120     $s2u  = array();
 121
 122     $rndstr = "";
 123     for ($i = 0 ; $i < 4096 ; $i++) {
 124         $rndstr .= chr(mt_rand(65, 90));
 125     }
 126
 127     if (file_exists($FILE_SOCKET)) {
 128         unlink($FILE_SOCKET);
 129     }
 130
 131     $old_umask = umask(0);
 132     if (($list = stream_socket_server($UNIX_SOCKET, $err, $errs)) === FALSE) {
 133         exit(11);
 134     }
 135     umask($old_umask);
 136
 137     if (($in = fopen("php://stdin", "r")) === FALSE) {
 138         exit(11);
 139     }
 140
 141     stream_set_blocking($list, $blocking_mode); # Set the stream to non-blocking
 142
 143     while ($main_loop) {
 144         $curtime = time();
 145         printf("IN LOOP: Current opened: %d\n", count($socks));
 146
 147         /* Prepare the read array */
 148         if ($shutdown)
 149             $read   = array_merge(array("$in" => $in), $socks);
 150         else
 151             $read   = array_merge(array("$list" => $list, "$in" => $in), $socks);
 152
 153         if ($debug > 1) {
 154             printf("PRE_SELECT\n");
 155             print_r($read);
 156         }
 157         $write  = NULL;
 158         $except = NULL;
 159         $num_changed_sockets = stream_select($read, $write, $except, 0, 250000);
 160
 161         if ($num_changed_sockets === FALSE) {
 162             printf("No data in 5 secs");
 163         }
 164         else if ($num_changed_sockets > 0) {
 165             printf("num sock %d num_of_socket: %d\n", $num_changed_sockets, count($read));
 166             if ($debug > 1) {
 167                 print_r($read);
 168             }
 169             /* At least at one of the sockets something interesting happened */
 170             foreach ($read as $i => $sock) {
 171                 if ($sock === $list) {
 172                     printf("NUOVA CONNEX\n");
 173                     $new_unix = stream_socket_accept($list);
 174                     $stream_info = "";
 175                     $method      = "";
 176                     $get         = array();
 177                     $post        = array();
 178                     $cookie      = array();
 179                     if (($new_socket = ancillary_getstream($new_unix, $stream_info)) !== FALSE) {
 180                         stream_set_blocking($new_socket, $blocking_mode); // Set the stream to non-blocking
 181                         printf("RECEIVED HEADER:\n%s", $stream_info);
 182                         $path = spu_process_info($stream_info, $method, $header, $get, $post, $cookie);
 183                         printf("PATH: [%s]\n", $path);
 184                         printf("M: %s\nHEADER:\n", $method);
 185                         print_r($header);
 186                         printf("GET:\n");
 187                         print_r($get);
 188                         printf("POST:\n");
 189                         print_r($post);
 190                         printf("COOKIE:\n");
 191                         print_r($cookie);
 192
 193                         $addr = stream_socket_get_name($new_socket, TRUE);
 194
 195                         switch ($path) {
 196                         case SITE_PREFIX:
 197                         case SITE_PREFIX."index.php":
 198                             $header_out = array();
 199                             ob_start();
 200                             index_main($room, $header_out, $addr, $get, $post, $cookie);
 201                             $content = ob_get_contents();
 202                             ob_end_clean();
 203                             // printf("OUT: [%s]\n", $G_content);
 204                             fwrite($new_socket, headers_render($header_out).$content);
 205                             fclose($new_socket);
 206                             break;
 207                         case SITE_PREFIX."index_wr.php":
 208                             $header_out = array();
 209                             $addr = "";
 210                             // $ret = socket_getpeername($new_socket, $addr);
 211                             printf("RET: %s\n", $addr);
 212                             // exit(123);
 213                             ob_start();
 214                             index_wr_main($room, $addr, $get, $post, $cookie);
 215                             $content = ob_get_contents();
 216                             ob_end_clean();
 217
 218                             // printf("OUT: [%s]\n", $G_content);
 219                             fwrite($new_socket, headers_render($header_out).$content);
 220                             fclose($new_socket);
 221                             break;
 222                         case SITE_PREFIX."index_rd_ifra.php":
 223                             do {
 224                                 $header_out = array();
 225                                 if (!isset($cookie['sess'])
 226                                     || (($user = $room->get_user($cookie['sess'], $idx)) == FALSE)) {
 227                                     $body = index_rd_ifra_fini(TRUE);
 228                                     fwrite($new_socket, headers_render($header_out).$body);
 229                                     fflush($new_socket);
 230                                     fclose($new_socket);
 231                                     break;
 232                                 }
 233                                 // close a previous opened index_read_ifra socket, if exists
 234                                 if (($prev = $user->rd_socket_get()) != NULL) {
 235                                     unset($s2u[intval($user->rd_socket_get())]);
 236                                     unset($socks[intval($user->rd_socket_get())]);
 237                                     fclose($user->rd_socket_get());
 238                                     printf("CLOSE AND OPEN AGAIN ON IFRA2\n");
 239                                     $user->rd_socket_set(NULL);
 240                                 }
 241
 242                                 $body = "";
 243                                 index_rd_ifra_init($room, $user, $header_out, $body, $get, $post, $cookie);
 244                                 fwrite($new_socket, headers_render($header_out).$body);
 245                                 fflush($new_socket);
 246
 247                                 $s2u[intval($new_socket)] = $idx;
 248                                 $socks[intval($new_socket)] = $new_socket;
 249                                 $user->rd_socket_set($new_socket);
 250                             } while (FALSE);
 251
 252                             break;
 253                         }
 254                     }
 255                     else {
 256                         printf("WARNING: ancillary_getstream failed\n");
 257                     }
 258                 }
 259                 else {
 260                     if (($buf = fread($sock, 512)) === FALSE) {
 261                         printf("error read\n");
 262                         exit(123);
 263                     }
 264                     else if (strlen($buf) === 0) {
 265                         if ($sock === $list) {
 266                             printf("Arrivati %d bytes da list\n", strlen($buf));
 267                         }
 268                         else if ($sock === $in) {
 269                             printf("Arrivati %d bytes da stdin\n", strlen($buf));
 270                         }
 271                         else {
 272                             // $user_a[$s2u[intval($sock)]]->disable();
 273                             if ($room->user[$s2u[intval($sock)]]->rd_socket_get() != NULL) {
 274                                 $room->user[$s2u[intval($sock)]]->rd_socket_set(NULL);
 275                             }
 276                             unset($socks[intval($sock)]);
 277                             unset($s2u[intval($sock)]);
 278                             fclose($sock);
 279                             printf("CLOSE ON READ\n");
 280                         }
 281                         if ($debug > 1) {
 282                             printf("post unset\n");
 283                             print_r($socks);
 284                         }
 285                     }
 286                     else {
 287                         if ($debug > 1) {
 288                             print_r($read);
 289                         }
 290                         if ($sock === $list) {
 291                             printf("Arrivati %d bytes da list\n", strlen($buf));
 292                         }
 293                         else if ($sock === $in) {
 294                             printf("Arrivati %d bytes da stdin\n", strlen($buf));
 295                         }
 296                         else {
 297                             $key = array_search("$sock", $socks);
 298                             printf("Arrivati %d bytes dalla socket n. %d\n", strlen($buf), $key);
 299                         }
 300                     }
 301                 }
 302             }
 303         }
 304
 305         foreach ($socks as $k => $sock) {
 306             if (isset($s2u[intval($sock)])) {
 307                 $user = $room->user[$s2u[intval($sock)]];
 308                 $body = $user->rd_cache_get();
 309                 if ($body == "")
 310                     index_rd_ifra_main($room, $user, $body);
 311
 312                 if ($body == "" && $user->rd_kalive_is_expired($curtime)) {
 313                     $body = index_rd_ifra_keepalive($user);
 314                 }
 315
 316                 if ($body != "") {
 317                     echo "SPIA: [".substr($body, 0, 60)."...]\n";
 318                     $body_l = mb_strlen($body, "LATIN1");
 319                     $ret = @fwrite($sock, $body);
 320                     if ($ret < $body_l) {
 321                         printf("TROUBLE WITH FWRITE: %d\n", $ret);
 322                         $user->rd_cache_set(mb_substr($body, $ret, $body_l - $ret, "LATIN1"));
 323                     }
 324                     else {
 325                         $user->rd_cache_set("");
 326                     }
 327                     fflush($sock);
 328                     $user->rd_kalive_reset($curtime);
 329                 }
 330
 331                 // close socket after a while to prevent client memory consumption
 332                 if ($user->rd_endtime_is_expired($curtime)) {
 333                     // $user_a[$s2u[intval($sock)]]->disable();
 334                     if ($room->user[$s2u[intval($sock)]]->rd_socket_get() != NULL) {
 335                         $room->user[$s2u[intval($sock)]]->rd_socket_set(NULL);
 336                     }
 337                     unset($socks[intval($sock)]);
 338                     unset($s2u[intval($sock)]);
 339                     fclose($sock);
 340                     printf("CLOSE ON LOOP\n");
 341                 }
 342             }
 343         }
 344     }
 345
 346     exit(0);
 347 }
 348
 349 main();
 350 ?>