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/*
Copyright (C) 2012 Paul Davis
Inspired by code from Ben Loftis @ Harrison Consoles
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#include <string>
#include <iostream>
#include <fstream>
#include <cstring>
#include <sys/utsname.h>
#include <curl/curl.h>
#include <glibmm/miscutils.h>
#include "pbd/compose.h"
#include "pbd/pthread_utils.h"
#include "ardour/filesystem_paths.h"
#include "ardour/rc_configuration.h"
#include "pingback.h"
using std::string;
using namespace ARDOUR;
static size_t
curl_write_data (char *bufptr, size_t size, size_t nitems, void *ptr)
{
/* we know its a string */
string* sptr = (string*) ptr;
for (size_t i = 0; i < nitems; ++i) {
for (size_t n = 0; n < size; ++n) {
if (*bufptr == '\n') {
break;
}
(*sptr) += *bufptr++;
}
}
return size * nitems;
}
struct ping_call {
std::string version;
std::string announce_path;
ping_call (const std::string& v, const std::string& a)
: version (v), announce_path (a) {}
};
static void*
_pingback (void *arg)
{
ping_call* cm = static_cast<ping_call*> (arg);
CURL* c;
struct utsname utb;
string return_str;
if (uname (&utb)) {
return 0;
}
//initialize curl
curl_global_init (CURL_GLOBAL_NOTHING);
c = curl_easy_init ();
curl_easy_setopt (c, CURLOPT_WRITEFUNCTION, curl_write_data);
curl_easy_setopt (c, CURLOPT_WRITEDATA, &return_str);
char errbuf[CURL_ERROR_SIZE];
curl_easy_setopt (c, CURLOPT_ERRORBUFFER, errbuf);
//get announcements from our server
std::cerr << "Checking for Announcements from ardour.org ...\n";
string url;
#ifdef __APPLE__
url = Config->get_osx_pingback_url ();
#else
url = Config->get_linux_pingback_url ();
#endif
char* v = curl_easy_escape (c, cm->version.c_str(), cm->version.length());
url += v;
url += '?';
free (v);
string uts = string_compose ("%1 %2 %3 %4", utb.sysname, utb.release, utb.version, utb.machine);
string s;
char* query;
query = curl_easy_escape (c, utb.sysname, strlen (utb.sysname));
s = string_compose ("s=%1", query);
url += s;
url += '&';
free (query);
query = curl_easy_escape (c, utb.release, strlen (utb.release));
s = string_compose ("r=%1", query);
url += s;
url += '&';
free (query);
query = curl_easy_escape (c, utb.machine, strlen (utb.machine));
s = string_compose ("m=%1", query);
url += s;
free (query);
curl_easy_setopt (c, CURLOPT_URL, url.c_str());
return_str = "";
if (curl_easy_perform (c) == 0) {
int http_status;
curl_easy_getinfo (c, CURLINFO_RESPONSE_CODE, &http_status);
if (http_status != 200) {
std::cerr << "Bad HTTP status" << std::endl;
return 0;
}
if ( return_str.length() > 140 ) { // like a tweet :)
std::cerr << "Announcement string is too long (probably behind a proxy)." << std::endl;
} else {
std::cerr << "Announcement is: " << return_str << std::endl;
//write announcements to local file, even if the
//announcement is empty
std::ofstream annc_file (cm->announce_path.c_str());
if (annc_file) {
annc_file << return_str;
}
}
} else {
std::cerr << "curl failed: " << errbuf << std::endl;
}
curl_easy_cleanup (c);
delete cm;
return 0;
}
namespace ARDOUR {
void pingback (const string& version, const string& announce_path)
{
ping_call* cm = new ping_call (version, announce_path);
pthread_t thread;
pthread_create_and_store ("pingback", &thread, _pingback, cm);
}
}
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