2 Copyright (C) 2014 Carl Hetherington <cth@carlh.net>
4 This program is free software; you can redistribute it and/or modify
5 it under the terms of the GNU General Public License as published by
6 the Free Software Foundation; either version 2 of the License, or
7 (at your option) any later version.
9 This program is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 GNU General Public License for more details.
14 You should have received a copy of the GNU General Public License
15 along with this program; if not, write to the Free Software
16 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
21 #include <boost/algorithm/string.hpp>
22 #include <curl/curl.h>
23 #include <libcxml/cxml.h>
24 #include <dcp/raw_convert.h>
27 #include "ui_signaller.h"
28 #include "safe_stringstream.h"
30 #define BUFFER_SIZE 1024
35 using dcp::raw_convert;
37 /** Singleton instance */
38 UpdateChecker* UpdateChecker::_instance = 0;
41 write_callback_wrapper (void* data, size_t size, size_t nmemb, void* user)
43 return reinterpret_cast<UpdateChecker*>(user)->write_callback (data, size, nmemb);
46 /** Construct an UpdateChecker. This sets things up and starts a thread to
49 UpdateChecker::UpdateChecker ()
50 : _buffer (new char[BUFFER_SIZE])
57 curl_global_init (CURL_GLOBAL_ALL);
58 _curl = curl_easy_init ();
60 curl_easy_setopt (_curl, CURLOPT_URL, "http://dcpomatic.com/update");
61 curl_easy_setopt (_curl, CURLOPT_WRITEFUNCTION, write_callback_wrapper);
62 curl_easy_setopt (_curl, CURLOPT_WRITEDATA, this);
63 curl_easy_setopt (_curl, CURLOPT_TIMEOUT, 20);
65 string const agent = "dcpomatic/" + string (dcpomatic_version);
66 curl_easy_setopt (_curl, CURLOPT_USERAGENT, agent.c_str ());
68 _thread = new boost::thread (boost::bind (&UpdateChecker::thread, this));
71 UpdateChecker::~UpdateChecker ()
73 /* We are not cleaning up our thread, but hey well */
75 curl_easy_cleanup (_curl);
76 curl_global_cleanup ();
80 /** Start running the update check */
84 boost::mutex::scoped_lock lm (_process_mutex);
86 _condition.notify_one ();
90 UpdateChecker::thread ()
93 /* Block until there is something to do */
94 boost::mutex::scoped_lock lock (_process_mutex);
96 _condition.wait (lock);
104 /* Perform the request */
106 int r = curl_easy_perform (_curl);
112 /* Parse the reply */
114 _buffer[_offset] = '\0';
116 cxml::Document doc ("Update");
120 boost::mutex::scoped_lock lm (_data_mutex);
121 _stable = doc.string_child ("Stable");
122 _test = doc.string_child ("Test");
125 string current = string (dcpomatic_version);
126 bool current_pre = false;
127 if (boost::algorithm::ends_with (current, "pre")) {
128 current = current.substr (0, current.length() - 3);
132 float current_float = raw_convert<float> (current);
134 current_float -= 0.005;
137 if (current_float < raw_convert<float> (_stable)) {
149 UpdateChecker::write_callback (void* data, size_t size, size_t nmemb)
151 size_t const t = min (size * nmemb, size_t (BUFFER_SIZE - _offset - 1));
152 memcpy (_buffer + _offset, data, t);
158 UpdateChecker::set_state (State s)
161 boost::mutex::scoped_lock lm (_data_mutex);
166 ui_signaller->emit (boost::bind (boost::ref (StateChanged)));
170 UpdateChecker::instance ()
173 _instance = new UpdateChecker ();