greyhound.php
author Dan
Wed, 08 Oct 2008 21:56:21 -0400
changeset 56 53b0f0d7ff6f
parent 55 b8a3c9c54fbe
child 58 05a69bab5f10
permissions -rwxr-xr-x
Fixed wrong PID variable in httpd fork
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
6
5f35ebc4f9bb First release version. Renamed to Greyhound and readme/license files added.
Dan
parents: 5
diff changeset
     1
#!/usr/bin/env php
0
c63de9eb7045 First commit. Basic things are working and implemented (webserver, templating, DCOP interface)
Dan
parents:
diff changeset
     2
<?php
c63de9eb7045 First commit. Basic things are working and implemented (webserver, templating, DCOP interface)
Dan
parents:
diff changeset
     3
c63de9eb7045 First commit. Basic things are working and implemented (webserver, templating, DCOP interface)
Dan
parents:
diff changeset
     4
/**
6
5f35ebc4f9bb First release version. Renamed to Greyhound and readme/license files added.
Dan
parents: 5
diff changeset
     5
 * Greyhound - real web management for Amarok
5
9b96265b5918 Relicensed to GPLv2. Previous revisions should not be downloaded as they do not contain copies of appropriate licenses, which will be added in a later commit. Completed interface for mobile devices.
Dan
parents: 4
diff changeset
     6
 * Copyright (C) 2008 Dan Fuhry
0
c63de9eb7045 First commit. Basic things are working and implemented (webserver, templating, DCOP interface)
Dan
parents:
diff changeset
     7
 *
5
9b96265b5918 Relicensed to GPLv2. Previous revisions should not be downloaded as they do not contain copies of appropriate licenses, which will be added in a later commit. Completed interface for mobile devices.
Dan
parents: 4
diff changeset
     8
 * This program is Free Software; you can redistribute and/or modify it under the terms of the GNU General Public License
9b96265b5918 Relicensed to GPLv2. Previous revisions should not be downloaded as they do not contain copies of appropriate licenses, which will be added in a later commit. Completed interface for mobile devices.
Dan
parents: 4
diff changeset
     9
 * as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version.
9b96265b5918 Relicensed to GPLv2. Previous revisions should not be downloaded as they do not contain copies of appropriate licenses, which will be added in a later commit. Completed interface for mobile devices.
Dan
parents: 4
diff changeset
    10
 *
9b96265b5918 Relicensed to GPLv2. Previous revisions should not be downloaded as they do not contain copies of appropriate licenses, which will be added in a later commit. Completed interface for mobile devices.
Dan
parents: 4
diff changeset
    11
 * This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied
9b96265b5918 Relicensed to GPLv2. Previous revisions should not be downloaded as they do not contain copies of appropriate licenses, which will be added in a later commit. Completed interface for mobile devices.
Dan
parents: 4
diff changeset
    12
 * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for details.
0
c63de9eb7045 First commit. Basic things are working and implemented (webserver, templating, DCOP interface)
Dan
parents:
diff changeset
    13
 */
c63de9eb7045 First commit. Basic things are working and implemented (webserver, templating, DCOP interface)
Dan
parents:
diff changeset
    14
44
92dd253f501c First shot at getting a session management system in place. Login and logout pages are there, and auth seems to be working and sufficiently secure for the moment. Sessions last indefinitely and are cookie-based.
Dan
parents: 40
diff changeset
    15
define('GREY_VERSION', '0.1a4');
92dd253f501c First shot at getting a session management system in place. Login and logout pages are there, and auth seems to be working and sufficiently secure for the moment. Sessions last indefinitely and are cookie-based.
Dan
parents: 40
diff changeset
    16
12
b3fcc21e557f Backend improvement to webserver that causes interrupts to work properly; made pcntl_signal only be called if it's supported
Dan
parents: 8
diff changeset
    17
// Try to trap termination signals to cleanly close the socket when needed
b3fcc21e557f Backend improvement to webserver that causes interrupts to work properly; made pcntl_signal only be called if it's supported
Dan
parents: 8
diff changeset
    18
// AmaroK sends a SIGTERM when it is shut down or the user requests to stop
b3fcc21e557f Backend improvement to webserver that causes interrupts to work properly; made pcntl_signal only be called if it's supported
Dan
parents: 8
diff changeset
    19
// the script
b3fcc21e557f Backend improvement to webserver that causes interrupts to work properly; made pcntl_signal only be called if it's supported
Dan
parents: 8
diff changeset
    20
if ( function_exists('pcntl_signal') )
b3fcc21e557f Backend improvement to webserver that causes interrupts to work properly; made pcntl_signal only be called if it's supported
Dan
parents: 8
diff changeset
    21
{
b3fcc21e557f Backend improvement to webserver that causes interrupts to work properly; made pcntl_signal only be called if it's supported
Dan
parents: 8
diff changeset
    22
  // required for signal handling to work
b3fcc21e557f Backend improvement to webserver that causes interrupts to work properly; made pcntl_signal only be called if it's supported
Dan
parents: 8
diff changeset
    23
  declare(ticks=1);
b3fcc21e557f Backend improvement to webserver that causes interrupts to work properly; made pcntl_signal only be called if it's supported
Dan
parents: 8
diff changeset
    24
  
b3fcc21e557f Backend improvement to webserver that causes interrupts to work properly; made pcntl_signal only be called if it's supported
Dan
parents: 8
diff changeset
    25
  // trap SIGTERM
b3fcc21e557f Backend improvement to webserver that causes interrupts to work properly; made pcntl_signal only be called if it's supported
Dan
parents: 8
diff changeset
    26
  pcntl_signal(SIGTERM, 'sigterm');
b3fcc21e557f Backend improvement to webserver that causes interrupts to work properly; made pcntl_signal only be called if it's supported
Dan
parents: 8
diff changeset
    27
  pcntl_signal(SIGINT,  'sigterm');
32
86140ed9087d Experimental: upon change to playlist, send SIGUSR1 to parent process and branch out to all children to force a playlist refresh
Dan
parents: 25
diff changeset
    28
  pcntl_signal(SIGUSR1, 'handle_refresh_signal');
12
b3fcc21e557f Backend improvement to webserver that causes interrupts to work properly; made pcntl_signal only be called if it's supported
Dan
parents: 8
diff changeset
    29
}
8
a8d108f37363 Modified to trap signals properly and not write to the root directory (only working directory)
Dan
parents: 7
diff changeset
    30
0
c63de9eb7045 First commit. Basic things are working and implemented (webserver, templating, DCOP interface)
Dan
parents:
diff changeset
    31
@ini_set('display_errors', 'on');
c63de9eb7045 First commit. Basic things are working and implemented (webserver, templating, DCOP interface)
Dan
parents:
diff changeset
    32
8
a8d108f37363 Modified to trap signals properly and not write to the root directory (only working directory)
Dan
parents: 7
diff changeset
    33
// get the root
a8d108f37363 Modified to trap signals properly and not write to the root directory (only working directory)
Dan
parents: 7
diff changeset
    34
define('GREY_ROOT', dirname(__FILE__));
a8d108f37363 Modified to trap signals properly and not write to the root directory (only working directory)
Dan
parents: 7
diff changeset
    35
34
3b817b961984 Merging changes from nighthawk; added support for dumb terminals
Dan
parents: 33 31
diff changeset
    36
// what kind of terminal do we have?
3b817b961984 Merging changes from nighthawk; added support for dumb terminals
Dan
parents: 33 31
diff changeset
    37
$use_colors = ( @in_array(@$_SERVER['TERM'], array('linux', 'xterm', 'vt100')) ) ? true : false;
48
d643bfb862d8 Replaced multithreading in WebServer with a full multithreading library that properly handles IPC and child management
Dan
parents: 46
diff changeset
    38
require(GREY_ROOT . '/functions.php');
34
3b817b961984 Merging changes from nighthawk; added support for dumb terminals
Dan
parents: 33 31
diff changeset
    39
0
c63de9eb7045 First commit. Basic things are working and implemented (webserver, templating, DCOP interface)
Dan
parents:
diff changeset
    40
// start up...
c63de9eb7045 First commit. Basic things are working and implemented (webserver, templating, DCOP interface)
Dan
parents:
diff changeset
    41
44
92dd253f501c First shot at getting a session management system in place. Login and logout pages are there, and auth seems to be working and sufficiently secure for the moment. Sessions last indefinitely and are cookie-based.
Dan
parents: 40
diff changeset
    42
status('Starting Greyhound Web Control v' . GREY_VERSION);
0
c63de9eb7045 First commit. Basic things are working and implemented (webserver, templating, DCOP interface)
Dan
parents:
diff changeset
    43
status('loading files');
c63de9eb7045 First commit. Basic things are working and implemented (webserver, templating, DCOP interface)
Dan
parents:
diff changeset
    44
48
d643bfb862d8 Replaced multithreading in WebServer with a full multithreading library that properly handles IPC and child management
Dan
parents: 46
diff changeset
    45
require_once(GREY_ROOT . '/webserver.php');
8
a8d108f37363 Modified to trap signals properly and not write to the root directory (only working directory)
Dan
parents: 7
diff changeset
    46
define('SMARTY_DIR', GREY_ROOT . '/smarty/');
48
d643bfb862d8 Replaced multithreading in WebServer with a full multithreading library that properly handles IPC and child management
Dan
parents: 46
diff changeset
    47
require_once(GREY_ROOT . '/smarty/Smarty.class.php');
d643bfb862d8 Replaced multithreading in WebServer with a full multithreading library that properly handles IPC and child management
Dan
parents: 46
diff changeset
    48
require_once(GREY_ROOT . '/playlist.php');
d643bfb862d8 Replaced multithreading in WebServer with a full multithreading library that properly handles IPC and child management
Dan
parents: 46
diff changeset
    49
require_once(GREY_ROOT . '/json.php');
d643bfb862d8 Replaced multithreading in WebServer with a full multithreading library that properly handles IPC and child management
Dan
parents: 46
diff changeset
    50
require_once(GREY_ROOT . '/ajax.php');
d643bfb862d8 Replaced multithreading in WebServer with a full multithreading library that properly handles IPC and child management
Dan
parents: 46
diff changeset
    51
require_once(GREY_ROOT . '/uiconfig.php');
d643bfb862d8 Replaced multithreading in WebServer with a full multithreading library that properly handles IPC and child management
Dan
parents: 46
diff changeset
    52
require_once(GREY_ROOT . '/imagetools.php');
d643bfb862d8 Replaced multithreading in WebServer with a full multithreading library that properly handles IPC and child management
Dan
parents: 46
diff changeset
    53
require_once(GREY_ROOT . '/sessions.php');
d643bfb862d8 Replaced multithreading in WebServer with a full multithreading library that properly handles IPC and child management
Dan
parents: 46
diff changeset
    54
d643bfb862d8 Replaced multithreading in WebServer with a full multithreading library that properly handles IPC and child management
Dan
parents: 46
diff changeset
    55
//
d643bfb862d8 Replaced multithreading in WebServer with a full multithreading library that properly handles IPC and child management
Dan
parents: 46
diff changeset
    56
// LOAD OUR CONFIG
d643bfb862d8 Replaced multithreading in WebServer with a full multithreading library that properly handles IPC and child management
Dan
parents: 46
diff changeset
    57
// Amarok launches Greyhound with a different wd than Greyhound's root. This means
d643bfb862d8 Replaced multithreading in WebServer with a full multithreading library that properly handles IPC and child management
Dan
parents: 46
diff changeset
    58
// that we can drop our own config (set up from the web UI) in there and load that
d643bfb862d8 Replaced multithreading in WebServer with a full multithreading library that properly handles IPC and child management
Dan
parents: 46
diff changeset
    59
// instead of the default config, which comes with greyhound.
d643bfb862d8 Replaced multithreading in WebServer with a full multithreading library that properly handles IPC and child management
Dan
parents: 46
diff changeset
    60
//
d643bfb862d8 Replaced multithreading in WebServer with a full multithreading library that properly handles IPC and child management
Dan
parents: 46
diff changeset
    61
d643bfb862d8 Replaced multithreading in WebServer with a full multithreading library that properly handles IPC and child management
Dan
parents: 46
diff changeset
    62
grey_reload_config();
d643bfb862d8 Replaced multithreading in WebServer with a full multithreading library that properly handles IPC and child management
Dan
parents: 46
diff changeset
    63
d643bfb862d8 Replaced multithreading in WebServer with a full multithreading library that properly handles IPC and child management
Dan
parents: 46
diff changeset
    64
// create directories
d643bfb862d8 Replaced multithreading in WebServer with a full multithreading library that properly handles IPC and child management
Dan
parents: 46
diff changeset
    65
@mkdir('./compiled');
0
c63de9eb7045 First commit. Basic things are working and implemented (webserver, templating, DCOP interface)
Dan
parents:
diff changeset
    66
8
a8d108f37363 Modified to trap signals properly and not write to the root directory (only working directory)
Dan
parents: 7
diff changeset
    67
// signal handler
a8d108f37363 Modified to trap signals properly and not write to the root directory (only working directory)
Dan
parents: 7
diff changeset
    68
function sigterm($signal)
a8d108f37363 Modified to trap signals properly and not write to the root directory (only working directory)
Dan
parents: 7
diff changeset
    69
{
48
d643bfb862d8 Replaced multithreading in WebServer with a full multithreading library that properly handles IPC and child management
Dan
parents: 46
diff changeset
    70
  global $httpd, $avahi_process;
36
70ef461bbffa Children are no longer noisy when dying (don't I sound perverted)
Dan
parents: 34
diff changeset
    71
  if ( !defined('HTTPD_WS_CHILD') )
48
d643bfb862d8 Replaced multithreading in WebServer with a full multithreading library that properly handles IPC and child management
Dan
parents: 46
diff changeset
    72
  {
36
70ef461bbffa Children are no longer noisy when dying (don't I sound perverted)
Dan
parents: 34
diff changeset
    73
    status("Caught SIGTERM, cleaning up.");
48
d643bfb862d8 Replaced multithreading in WebServer with a full multithreading library that properly handles IPC and child management
Dan
parents: 46
diff changeset
    74
    if ( is_resource($avahi_process) )
d643bfb862d8 Replaced multithreading in WebServer with a full multithreading library that properly handles IPC and child management
Dan
parents: 46
diff changeset
    75
    {
d643bfb862d8 Replaced multithreading in WebServer with a full multithreading library that properly handles IPC and child management
Dan
parents: 46
diff changeset
    76
      @proc_terminate($avahi_process);
d643bfb862d8 Replaced multithreading in WebServer with a full multithreading library that properly handles IPC and child management
Dan
parents: 46
diff changeset
    77
    }
d643bfb862d8 Replaced multithreading in WebServer with a full multithreading library that properly handles IPC and child management
Dan
parents: 46
diff changeset
    78
  }
36
70ef461bbffa Children are no longer noisy when dying (don't I sound perverted)
Dan
parents: 34
diff changeset
    79
  
16
23d4cf2f183b Disabled forking/keep-alive code, firefox doesn't seem to like the way it waits for requests
Dan
parents: 15
diff changeset
    80
  exit(0);
8
a8d108f37363 Modified to trap signals properly and not write to the root directory (only working directory)
Dan
parents: 7
diff changeset
    81
}
a8d108f37363 Modified to trap signals properly and not write to the root directory (only working directory)
Dan
parents: 7
diff changeset
    82
31
48004643a8a5 Made Greyhound check for SimpleXML.
Dan
parents: 29
diff changeset
    83
status('doing PHP capabilities check');
54
6d8b9497e44b Added check for PHP 5.1.0 and improved error handling for missing pcntl
Dan
parents: 48
diff changeset
    84
6d8b9497e44b Added check for PHP 5.1.0 and improved error handling for missing pcntl
Dan
parents: 48
diff changeset
    85
if ( version_compare(PHP_VERSION, '5.1.0', '<') )
6d8b9497e44b Added check for PHP 5.1.0 and improved error handling for missing pcntl
Dan
parents: 48
diff changeset
    86
{
6d8b9497e44b Added check for PHP 5.1.0 and improved error handling for missing pcntl
Dan
parents: 48
diff changeset
    87
  burnout('The minimum required version of PHP for Greyhound is 5.1.0. PHP 5.2.x is recommended.');
6d8b9497e44b Added check for PHP 5.1.0 and improved error handling for missing pcntl
Dan
parents: 48
diff changeset
    88
}
6d8b9497e44b Added check for PHP 5.1.0 and improved error handling for missing pcntl
Dan
parents: 48
diff changeset
    89
31
48004643a8a5 Made Greyhound check for SimpleXML.
Dan
parents: 29
diff changeset
    90
if ( !function_exists('pcntl_signal') )
48004643a8a5 Made Greyhound check for SimpleXML.
Dan
parents: 29
diff changeset
    91
{
54
6d8b9497e44b Added check for PHP 5.1.0 and improved error handling for missing pcntl
Dan
parents: 48
diff changeset
    92
  warning('System does not support POSIX functions. Termination signals will result in unclean shutdown and multi-process webserving will not work.');
6d8b9497e44b Added check for PHP 5.1.0 and improved error handling for missing pcntl
Dan
parents: 48
diff changeset
    93
  $allow_fork = false;
31
48004643a8a5 Made Greyhound check for SimpleXML.
Dan
parents: 29
diff changeset
    94
}
48004643a8a5 Made Greyhound check for SimpleXML.
Dan
parents: 29
diff changeset
    95
48004643a8a5 Made Greyhound check for SimpleXML.
Dan
parents: 29
diff changeset
    96
if ( !function_exists('simplexml_load_file') )
48004643a8a5 Made Greyhound check for SimpleXML.
Dan
parents: 29
diff changeset
    97
{
48004643a8a5 Made Greyhound check for SimpleXML.
Dan
parents: 29
diff changeset
    98
  warning('Can\'t find support for SimpleXML, which is needed to parse the Amarok playlist file.');
48004643a8a5 Made Greyhound check for SimpleXML.
Dan
parents: 29
diff changeset
    99
  burnout('SimpleXML required to continue. You may have an outdated version of PHP; most versions of PHP 5 have SimpleXML built-in. Check your distribution\'s documentation to find out how to enable PHP\'s SimpleXML support.');
48004643a8a5 Made Greyhound check for SimpleXML.
Dan
parents: 29
diff changeset
   100
}
48004643a8a5 Made Greyhound check for SimpleXML.
Dan
parents: 29
diff changeset
   101
44
92dd253f501c First shot at getting a session management system in place. Login and logout pages are there, and auth seems to be working and sufficiently secure for the moment. Sessions last indefinitely and are cookie-based.
Dan
parents: 40
diff changeset
   102
if ( !function_exists('imagepng') || !function_exists('imagecopyresampled') || !function_exists('imagecreatefromjpeg') || !function_exists('imagecreatefromwbmp') )
92dd253f501c First shot at getting a session management system in place. Login and logout pages are there, and auth seems to be working and sufficiently secure for the moment. Sessions last indefinitely and are cookie-based.
Dan
parents: 40
diff changeset
   103
{
92dd253f501c First shot at getting a session management system in place. Login and logout pages are there, and auth seems to be working and sufficiently secure for the moment. Sessions last indefinitely and are cookie-based.
Dan
parents: 40
diff changeset
   104
  warning('Can\'t find support for GD 2.0. Artwork will not be displayed. Look around in your distro\'s package manager for php-gd or php5-gd.');
92dd253f501c First shot at getting a session management system in place. Login and logout pages are there, and auth seems to be working and sufficiently secure for the moment. Sessions last indefinitely and are cookie-based.
Dan
parents: 40
diff changeset
   105
}
92dd253f501c First shot at getting a session management system in place. Login and logout pages are there, and auth seems to be working and sufficiently secure for the moment. Sessions last indefinitely and are cookie-based.
Dan
parents: 40
diff changeset
   106
0
c63de9eb7045 First commit. Basic things are working and implemented (webserver, templating, DCOP interface)
Dan
parents:
diff changeset
   107
status('initializing playlist');
c63de9eb7045 First commit. Basic things are working and implemented (webserver, templating, DCOP interface)
Dan
parents:
diff changeset
   108
c63de9eb7045 First commit. Basic things are working and implemented (webserver, templating, DCOP interface)
Dan
parents:
diff changeset
   109
// init playlist object
c63de9eb7045 First commit. Basic things are working and implemented (webserver, templating, DCOP interface)
Dan
parents:
diff changeset
   110
$playlist = array();
33
3b4aef1efff6 Removed requirement for detecting home directory; artwork fetcher relies on return from saveCurrentPlaylist now
Dan
parents: 32
diff changeset
   111
$amarok_home = false;
0
c63de9eb7045 First commit. Basic things are working and implemented (webserver, templating, DCOP interface)
Dan
parents:
diff changeset
   112
rebuild_playlist();
c63de9eb7045 First commit. Basic things are working and implemented (webserver, templating, DCOP interface)
Dan
parents:
diff changeset
   113
c63de9eb7045 First commit. Basic things are working and implemented (webserver, templating, DCOP interface)
Dan
parents:
diff changeset
   114
// startup webserver
c63de9eb7045 First commit. Basic things are working and implemented (webserver, templating, DCOP interface)
Dan
parents:
diff changeset
   115
$ip = ( $public ) ? '0.0.0.0' : '127.0.0.1';
3
e7447a6044ec $allowcontrol = false working and turned on now; switched default port back to 7447 instead of random; added favicon and apple-touch-icon
Dan
parents: 2
diff changeset
   116
$port = 7447;
0
c63de9eb7045 First commit. Basic things are working and implemented (webserver, templating, DCOP interface)
Dan
parents:
diff changeset
   117
c63de9eb7045 First commit. Basic things are working and implemented (webserver, templating, DCOP interface)
Dan
parents:
diff changeset
   118
try
c63de9eb7045 First commit. Basic things are working and implemented (webserver, templating, DCOP interface)
Dan
parents:
diff changeset
   119
{
c63de9eb7045 First commit. Basic things are working and implemented (webserver, templating, DCOP interface)
Dan
parents:
diff changeset
   120
  status('starting PhpHttpd');
c63de9eb7045 First commit. Basic things are working and implemented (webserver, templating, DCOP interface)
Dan
parents:
diff changeset
   121
  $httpd = new WebServer($ip, $port);
c63de9eb7045 First commit. Basic things are working and implemented (webserver, templating, DCOP interface)
Dan
parents:
diff changeset
   122
  
48
d643bfb862d8 Replaced multithreading in WebServer with a full multithreading library that properly handles IPC and child management
Dan
parents: 46
diff changeset
   123
  // if we have avahi and proc_open support, publish the service (new)
d643bfb862d8 Replaced multithreading in WebServer with a full multithreading library that properly handles IPC and child management
Dan
parents: 46
diff changeset
   124
  if ( $allowcontrol && function_exists('proc_open') && $path = which('avahi-publish') )
d643bfb862d8 Replaced multithreading in WebServer with a full multithreading library that properly handles IPC and child management
Dan
parents: 46
diff changeset
   125
  {
d643bfb862d8 Replaced multithreading in WebServer with a full multithreading library that properly handles IPC and child management
Dan
parents: 46
diff changeset
   126
    // get our current hostname (hack, sort of)
d643bfb862d8 Replaced multithreading in WebServer with a full multithreading library that properly handles IPC and child management
Dan
parents: 46
diff changeset
   127
    $hostfile = tempnam('hostname', ( function_exists('sys_get_temp_dir') ? sys_get_temp_dir() : '/tmp' ));
d643bfb862d8 Replaced multithreading in WebServer with a full multithreading library that properly handles IPC and child management
Dan
parents: 46
diff changeset
   128
    system("hostname > '$hostfile' 2>/dev/null");
d643bfb862d8 Replaced multithreading in WebServer with a full multithreading library that properly handles IPC and child management
Dan
parents: 46
diff changeset
   129
    $hostname = trim(@file_get_contents($hostfile));
d643bfb862d8 Replaced multithreading in WebServer with a full multithreading library that properly handles IPC and child management
Dan
parents: 46
diff changeset
   130
    unlink($hostfile);
d643bfb862d8 Replaced multithreading in WebServer with a full multithreading library that properly handles IPC and child management
Dan
parents: 46
diff changeset
   131
    if ( !empty($hostname) )
d643bfb862d8 Replaced multithreading in WebServer with a full multithreading library that properly handles IPC and child management
Dan
parents: 46
diff changeset
   132
    {
d643bfb862d8 Replaced multithreading in WebServer with a full multithreading library that properly handles IPC and child management
Dan
parents: 46
diff changeset
   133
      status('Publishing service on local network with Avahi');
d643bfb862d8 Replaced multithreading in WebServer with a full multithreading library that properly handles IPC and child management
Dan
parents: 46
diff changeset
   134
      $descriptorspec = array(
d643bfb862d8 Replaced multithreading in WebServer with a full multithreading library that properly handles IPC and child management
Dan
parents: 46
diff changeset
   135
          0 => array('pipe', 'r'),
d643bfb862d8 Replaced multithreading in WebServer with a full multithreading library that properly handles IPC and child management
Dan
parents: 46
diff changeset
   136
          1 => array('pipe', 'w'),
d643bfb862d8 Replaced multithreading in WebServer with a full multithreading library that properly handles IPC and child management
Dan
parents: 46
diff changeset
   137
          2 => array('pipe', 'w')
d643bfb862d8 Replaced multithreading in WebServer with a full multithreading library that properly handles IPC and child management
Dan
parents: 46
diff changeset
   138
        );
d643bfb862d8 Replaced multithreading in WebServer with a full multithreading library that properly handles IPC and child management
Dan
parents: 46
diff changeset
   139
      $thisuser = get_current_user();
d643bfb862d8 Replaced multithreading in WebServer with a full multithreading library that properly handles IPC and child management
Dan
parents: 46
diff changeset
   140
      
d643bfb862d8 Replaced multithreading in WebServer with a full multithreading library that properly handles IPC and child management
Dan
parents: 46
diff changeset
   141
      $avahi_command = "'$path' -s \"{$thisuser}'s\"' AmaroK playlist on $hostname' _greyhound._tcp $port";
d643bfb862d8 Replaced multithreading in WebServer with a full multithreading library that properly handles IPC and child management
Dan
parents: 46
diff changeset
   142
      $avahi_process = proc_open($avahi_command, $descriptorspec, $avahi_pipes);
d643bfb862d8 Replaced multithreading in WebServer with a full multithreading library that properly handles IPC and child management
Dan
parents: 46
diff changeset
   143
      if ( !$avahi_process )
d643bfb862d8 Replaced multithreading in WebServer with a full multithreading library that properly handles IPC and child management
Dan
parents: 46
diff changeset
   144
      {
d643bfb862d8 Replaced multithreading in WebServer with a full multithreading library that properly handles IPC and child management
Dan
parents: 46
diff changeset
   145
        warning('proc_open() failed; could not start announcement of service on Avahi network');
d643bfb862d8 Replaced multithreading in WebServer with a full multithreading library that properly handles IPC and child management
Dan
parents: 46
diff changeset
   146
      }
d643bfb862d8 Replaced multithreading in WebServer with a full multithreading library that properly handles IPC and child management
Dan
parents: 46
diff changeset
   147
    }
d643bfb862d8 Replaced multithreading in WebServer with a full multithreading library that properly handles IPC and child management
Dan
parents: 46
diff changeset
   148
  }
d643bfb862d8 Replaced multithreading in WebServer with a full multithreading library that properly handles IPC and child management
Dan
parents: 46
diff changeset
   149
  
0
c63de9eb7045 First commit. Basic things are working and implemented (webserver, templating, DCOP interface)
Dan
parents:
diff changeset
   150
  // setup handlers
c63de9eb7045 First commit. Basic things are working and implemented (webserver, templating, DCOP interface)
Dan
parents:
diff changeset
   151
  status('initializing handlers');
8
a8d108f37363 Modified to trap signals properly and not write to the root directory (only working directory)
Dan
parents: 7
diff changeset
   152
  $httpd->add_handler('index',                'function', 'amarok_playlist');
44
92dd253f501c First shot at getting a session management system in place. Login and logout pages are there, and auth seems to be working and sufficiently secure for the moment. Sessions last indefinitely and are cookie-based.
Dan
parents: 40
diff changeset
   153
  $httpd->add_handler('login',                'function', 'greyhound_login_page');
92dd253f501c First shot at getting a session management system in place. Login and logout pages are there, and auth seems to be working and sufficiently secure for the moment. Sessions last indefinitely and are cookie-based.
Dan
parents: 40
diff changeset
   154
  $httpd->add_handler('logout',               'function', 'greyhound_logout');
48
d643bfb862d8 Replaced multithreading in WebServer with a full multithreading library that properly handles IPC and child management
Dan
parents: 46
diff changeset
   155
  $httpd->add_handler('config',               'function', 'greyhound_config');
8
a8d108f37363 Modified to trap signals properly and not write to the root directory (only working directory)
Dan
parents: 7
diff changeset
   156
  $httpd->add_handler('action.json',          'function', 'ajax_request_handler');
25
5c377ceb0e4c Added initial album artwork support.
Dan
parents: 21
diff changeset
   157
  $httpd->add_handler('artwork',              'function', 'artwork_request_handler');
55
b8a3c9c54fbe Added login and credentials JSON API for some... upcoming new features.
Dan
parents: 54
diff changeset
   158
  $httpd->add_handler('api',                  'function', 'api_request_handler');
8
a8d108f37363 Modified to trap signals properly and not write to the root directory (only working directory)
Dan
parents: 7
diff changeset
   159
  $httpd->add_handler('scripts',              'dir',      GREY_ROOT . '/scripts');
a8d108f37363 Modified to trap signals properly and not write to the root directory (only working directory)
Dan
parents: 7
diff changeset
   160
  $httpd->add_handler('favicon.ico',          'file',     GREY_ROOT . '/amarok_icon.ico');
a8d108f37363 Modified to trap signals properly and not write to the root directory (only working directory)
Dan
parents: 7
diff changeset
   161
  $httpd->add_handler('apple-touch-icon.png', 'file',     GREY_ROOT . '/apple-touch-icon.png');
40
bd3372a2afc1 Added artwork spriting support. Artwork is now displayed using a gigantic CSS sprite instead of hundreds of little images. GD required.
Dan
parents: 36
diff changeset
   162
  $httpd->add_handler('spacer.gif',           'file',     GREY_ROOT . '/spacer.gif');
48
d643bfb862d8 Replaced multithreading in WebServer with a full multithreading library that properly handles IPC and child management
Dan
parents: 46
diff changeset
   163
  $httpd->threader->ipc_register('reloadconfig', 'grey_reload_config');
15
2adca0f363fd Added multi-threading/forking/keep-alive support to webserver. w00t, feeling all POSIX-happy today!
Dan
parents: 13
diff changeset
   164
  // load all themes if forking is enabled
2adca0f363fd Added multi-threading/forking/keep-alive support to webserver. w00t, feeling all POSIX-happy today!
Dan
parents: 13
diff changeset
   165
  // Themes are loaded when the playlist is requested. This is fine for
2adca0f363fd Added multi-threading/forking/keep-alive support to webserver. w00t, feeling all POSIX-happy today!
Dan
parents: 13
diff changeset
   166
  // single-threaded operation, but if the playlist handler is only loaded
2adca0f363fd Added multi-threading/forking/keep-alive support to webserver. w00t, feeling all POSIX-happy today!
Dan
parents: 13
diff changeset
   167
  // in a child process, we need to preload all themes into the parent before
2adca0f363fd Added multi-threading/forking/keep-alive support to webserver. w00t, feeling all POSIX-happy today!
Dan
parents: 13
diff changeset
   168
  // children can respond to theme resource requests.
48
d643bfb862d8 Replaced multithreading in WebServer with a full multithreading library that properly handles IPC and child management
Dan
parents: 46
diff changeset
   169
  // if ( $allow_fork )
d643bfb862d8 Replaced multithreading in WebServer with a full multithreading library that properly handles IPC and child management
Dan
parents: 46
diff changeset
   170
  // {
15
2adca0f363fd Added multi-threading/forking/keep-alive support to webserver. w00t, feeling all POSIX-happy today!
Dan
parents: 13
diff changeset
   171
    status('Preloading themes');
2adca0f363fd Added multi-threading/forking/keep-alive support to webserver. w00t, feeling all POSIX-happy today!
Dan
parents: 13
diff changeset
   172
    
2adca0f363fd Added multi-threading/forking/keep-alive support to webserver. w00t, feeling all POSIX-happy today!
Dan
parents: 13
diff changeset
   173
    $dh = @opendir(GREY_ROOT . '/themes');
2adca0f363fd Added multi-threading/forking/keep-alive support to webserver. w00t, feeling all POSIX-happy today!
Dan
parents: 13
diff changeset
   174
    if ( !$dh )
2adca0f363fd Added multi-threading/forking/keep-alive support to webserver. w00t, feeling all POSIX-happy today!
Dan
parents: 13
diff changeset
   175
      burnout('Could not open themes directory');
2adca0f363fd Added multi-threading/forking/keep-alive support to webserver. w00t, feeling all POSIX-happy today!
Dan
parents: 13
diff changeset
   176
    while ( $dir = @readdir($dh) )
2adca0f363fd Added multi-threading/forking/keep-alive support to webserver. w00t, feeling all POSIX-happy today!
Dan
parents: 13
diff changeset
   177
    {
2adca0f363fd Added multi-threading/forking/keep-alive support to webserver. w00t, feeling all POSIX-happy today!
Dan
parents: 13
diff changeset
   178
      if ( $dir == '.' || $dir == '..' )
2adca0f363fd Added multi-threading/forking/keep-alive support to webserver. w00t, feeling all POSIX-happy today!
Dan
parents: 13
diff changeset
   179
        continue;
2adca0f363fd Added multi-threading/forking/keep-alive support to webserver. w00t, feeling all POSIX-happy today!
Dan
parents: 13
diff changeset
   180
      if ( is_dir( GREY_ROOT . "/themes/$dir" ) )
2adca0f363fd Added multi-threading/forking/keep-alive support to webserver. w00t, feeling all POSIX-happy today!
Dan
parents: 13
diff changeset
   181
        load_theme($dir);
2adca0f363fd Added multi-threading/forking/keep-alive support to webserver. w00t, feeling all POSIX-happy today!
Dan
parents: 13
diff changeset
   182
    }
48
d643bfb862d8 Replaced multithreading in WebServer with a full multithreading library that properly handles IPC and child management
Dan
parents: 46
diff changeset
   183
  // }
0
c63de9eb7045 First commit. Basic things are working and implemented (webserver, templating, DCOP interface)
Dan
parents:
diff changeset
   184
  $httpd->allow_dir_list = true;
17
66c3eb4cdc4c Re-enabled multi-threaded operation after trying with a field test
Dan
parents: 16
diff changeset
   185
  $httpd->allow_fork = ( $allow_fork ) ? true : false;
0
c63de9eb7045 First commit. Basic things are working and implemented (webserver, templating, DCOP interface)
Dan
parents:
diff changeset
   186
  $httpd->default_document = 'index';
c63de9eb7045 First commit. Basic things are working and implemented (webserver, templating, DCOP interface)
Dan
parents:
diff changeset
   187
  
c63de9eb7045 First commit. Basic things are working and implemented (webserver, templating, DCOP interface)
Dan
parents:
diff changeset
   188
  status("Entering main server loop - ^C to interrupt, listening on port $port");
c63de9eb7045 First commit. Basic things are working and implemented (webserver, templating, DCOP interface)
Dan
parents:
diff changeset
   189
  $httpd->serve();
c63de9eb7045 First commit. Basic things are working and implemented (webserver, templating, DCOP interface)
Dan
parents:
diff changeset
   190
}
c63de9eb7045 First commit. Basic things are working and implemented (webserver, templating, DCOP interface)
Dan
parents:
diff changeset
   191
catch( Exception $e )
c63de9eb7045 First commit. Basic things are working and implemented (webserver, templating, DCOP interface)
Dan
parents:
diff changeset
   192
{
40
bd3372a2afc1 Added artwork spriting support. Artwork is now displayed using a gigantic CSS sprite instead of hundreds of little images. GD required.
Dan
parents: 36
diff changeset
   193
  if ( strstr(strval($e), "Could not bind") || strstr(strval($e), "Address already in use") )
34
3b817b961984 Merging changes from nighthawk; added support for dumb terminals
Dan
parents: 33 31
diff changeset
   194
  {
3b817b961984 Merging changes from nighthawk; added support for dumb terminals
Dan
parents: 33 31
diff changeset
   195
    burnout("Could not bind to the port $ip:$port. Is Greyhound already running? Sometimes browsers don't close off their connections until Greyhound has been dead for about a minute, so try starting Greyhound again in roughly 60 seconds. If that doesn't work, type \"killall -9 php\" at a terminal and try starting Greyhound again in 60 seconds.");
3b817b961984 Merging changes from nighthawk; added support for dumb terminals
Dan
parents: 33 31
diff changeset
   196
  }
0
c63de9eb7045 First commit. Basic things are working and implemented (webserver, templating, DCOP interface)
Dan
parents:
diff changeset
   197
  burnout("Exception caught while running webserver:\n$e");
c63de9eb7045 First commit. Basic things are working and implemented (webserver, templating, DCOP interface)
Dan
parents:
diff changeset
   198
}
32
86140ed9087d Experimental: upon change to playlist, send SIGUSR1 to parent process and branch out to all children to force a playlist refresh
Dan
parents: 25
diff changeset
   199
86140ed9087d Experimental: upon change to playlist, send SIGUSR1 to parent process and branch out to all children to force a playlist refresh
Dan
parents: 25
diff changeset
   200
function handle_refresh_signal()
86140ed9087d Experimental: upon change to playlist, send SIGUSR1 to parent process and branch out to all children to force a playlist refresh
Dan
parents: 25
diff changeset
   201
{
86140ed9087d Experimental: upon change to playlist, send SIGUSR1 to parent process and branch out to all children to force a playlist refresh
Dan
parents: 25
diff changeset
   202
  global $httpd;
86140ed9087d Experimental: upon change to playlist, send SIGUSR1 to parent process and branch out to all children to force a playlist refresh
Dan
parents: 25
diff changeset
   203
  if ( !is_object($httpd) )
86140ed9087d Experimental: upon change to playlist, send SIGUSR1 to parent process and branch out to all children to force a playlist refresh
Dan
parents: 25
diff changeset
   204
    // we're not serving yet.
86140ed9087d Experimental: upon change to playlist, send SIGUSR1 to parent process and branch out to all children to force a playlist refresh
Dan
parents: 25
diff changeset
   205
    return false;
86140ed9087d Experimental: upon change to playlist, send SIGUSR1 to parent process and branch out to all children to force a playlist refresh
Dan
parents: 25
diff changeset
   206
    
86140ed9087d Experimental: upon change to playlist, send SIGUSR1 to parent process and branch out to all children to force a playlist refresh
Dan
parents: 25
diff changeset
   207
  // we've got an httpd instance; rebuild the playlist
86140ed9087d Experimental: upon change to playlist, send SIGUSR1 to parent process and branch out to all children to force a playlist refresh
Dan
parents: 25
diff changeset
   208
  rebuild_playlist();
86140ed9087d Experimental: upon change to playlist, send SIGUSR1 to parent process and branch out to all children to force a playlist refresh
Dan
parents: 25
diff changeset
   209
}
48
d643bfb862d8 Replaced multithreading in WebServer with a full multithreading library that properly handles IPC and child management
Dan
parents: 46
diff changeset
   210