server.php

   1 <?php
   2 /*
   3  * Gemini server written in PHP by seven@0xm.net
   4  * Version 0.1, Oct 2020
   5 */
   6
   7 if(!require("config.php"))
   8         die("config.php is missing.  Copy config.php.sample to config.php and customise your settings");
   9 require("gemini.class.php");
  10 $g = new Gemini($config);
  11
  12 $context = stream_context_create();
  13
  14 stream_context_set_option($context, 'ssl', 'local_cert', $g->certificate_file);
  15 stream_context_set_option($context, 'ssl', 'passphrase', $g->certificate_passphrase);
  16 stream_context_set_option($context, 'ssl', 'allow_self_signed', true);
  17 stream_context_set_option($context, 'ssl', 'verify_peer', false);
  18
  19 $socket = stream_socket_server("tcp://{$g->ip}:{$g->port}", $errno, $errstr, STREAM_SERVER_BIND|STREAM_SERVER_LISTEN, $context);
  20
  21 stream_socket_enable_crypto($socket, false);
  22
  23 // apply patch from @nervuri:matrix.org to stop supporting out of spec versions of TLS
  24 $cryptoMethod = STREAM_CRYPTO_METHOD_TLS_SERVER
  25         & ~ STREAM_CRYPTO_METHOD_TLSv1_0_SERVER
  26         & ~ STREAM_CRYPTO_METHOD_TLSv1_1_SERVER;
  27
  28 while(true) {
  29         $forkedSocket = stream_socket_accept($socket, "-1", $remoteIP);
  30
  31         stream_set_blocking($forkedSocket, true);
  32         stream_socket_enable_crypto($forkedSocket, true, $cryptoMethod);
  33         $line = fread($forkedSocket, 1024);
  34         stream_set_blocking($forkedSocket, false);
  35
  36         $parsed_url = $g->parse_request($line);
  37
  38         $filepath = $g->get_filepath($parsed_url);
  39
  40         $status_code = $g->get_status_code($filepath);
  41
  42         $meta = "";
  43         $filesize = 0;
  44
  45         if($status_code == "20") {
  46                 $meta = $g->get_mime_type($filepath);
  47                 $content = file_get_contents($filepath);
  48                 $filesize = filesize($filepath);
  49         } else {
  50                 $meta = "Not found";
  51         }
  52
  53         $status_line = $status_code." ".$meta;
  54         if($g->logging)
  55                 $g->log_to_file($remoteIP,$status_code, $meta, $filepath, $filesize);
  56         $status_line .= "\r\n";
  57         fwrite($forkedSocket, $status_line);
  58
  59         if($status_code == "20") {
  60                 fwrite($forkedSocket,$content);
  61         }
  62
  63         fclose($forkedSocket);
  64 }
  65
  66 ?>