libs/ardour/callback.cc

   1 #include <iostream>
   2 #include <string>
   3 #include <stdio.h>
   4 #include <unistd.h>
   5 #include <sys/types.h>
   6 #include <sys/stat.h>
   7 #include <fcntl.h>
   8 #include <cstdlib>
   9 #include <sys/utsname.h>
  10 #include <curl/curl.h>
  11
  12 #include <glibmm/fileutils.h>
  13 #include <glibmm/miscutils.h>
  14
  15 #include "pbd/compose.h"
  16 #include "pbd/strsplit.h"
  17 #include "pbd/convert.h"
  18
  19 #include "ardour/filesystem_paths.h"
  20
  21 using namespace std;
  22
  23 #define PING_URL "http://ardour.org/pingback/versioncheck"
  24 #define OFF_THE_HOOK ".offthehook"
  25
  26 static size_t
  27 curl_write_data (char *bufptr, size_t size, size_t nitems, void *ptr)
  28 {
  29         /* we know its a string */
  30
  31         string* sptr = (string*) ptr;
  32
  33         for (size_t i = 0; i < nitems; ++i) {
  34                 for (size_t n = 0; n < size; ++n) {
  35                         if (*bufptr == '\n') {
  36                                 break;
  37                         }
  38
  39                         (*sptr) += *bufptr++;
  40                 }
  41         }
  42
  43         return size * nitems;
  44 }
  45
  46 static string
  47 watermark ()
  48 {
  49         return string();
  50 }
  51
  52 void
  53 block_mothership ()
  54 {
  55         string hangup = Glib::build_filename (ARDOUR::user_config_directory().to_string(), OFF_THE_HOOK);
  56         int fd;
  57         if ((fd = ::open (hangup.c_str(), O_RDWR|O_CREAT, 0600)) >= 0) {
  58                 close (fd);
  59         }
  60 }
  61
  62 void
  63 unblock_mothership ()
  64 {
  65         string hangup = Glib::build_filename (ARDOUR::user_config_directory().to_string(), OFF_THE_HOOK);
  66         ::unlink (hangup.c_str());
  67 }
  68
  69 bool
  70 mothership_blocked ()
  71 {
  72         string hangup = Glib::build_filename (ARDOUR::user_config_directory().to_string(), OFF_THE_HOOK);
  73         return Glib::file_test (hangup, Glib::FILE_TEST_EXISTS);
  74 }
  75
  76 void
  77 call_the_mothership (const string& version)
  78 {
  79         /* check if the user says never to do this
  80          */
  81
  82         if (mothership_blocked()) {
  83                 return;
  84         }
  85
  86         CURL* c;
  87         struct utsname utb;
  88         std::string versionstr;
  89
  90         if (uname (&utb)) {
  91                 return;
  92         }
  93
  94         curl_global_init (CURL_GLOBAL_NOTHING);
  95
  96         c = curl_easy_init ();
  97
  98         string data;
  99         string wm;
 100
 101         data = string_compose ("version=%1&platform=%2 %3 %4", version, utb.sysname, utb.release, utb.machine);
 102
 103         wm = watermark();
 104         if (!wm.empty()) {
 105                 data += string_compose ("&watermark=%1", wm);
 106         }
 107
 108         curl_easy_setopt(c, CURLOPT_POSTFIELDS, data.c_str());
 109         curl_easy_setopt(c, CURLOPT_URL, PING_URL);
 110         curl_easy_setopt(c, CURLOPT_WRITEFUNCTION, curl_write_data);
 111         curl_easy_setopt(c, CURLOPT_WRITEDATA, &versionstr);
 112
 113         std::cerr << "Callback to ardour.org ...\n";
 114
 115         char errbuf[CURL_ERROR_SIZE];
 116         curl_easy_setopt(c, CURLOPT_ERRORBUFFER, errbuf);
 117
 118         if (curl_easy_perform (c) == 0) {
 119                 cerr << "Current release is " << versionstr << endl;
 120
 121                 vector<string> ours;
 122                 vector<string> current;
 123
 124                 split (version, ours, '.');
 125                 split (versionstr, current, '.');
 126
 127                 if (ours.size() == 3 && current.size() == 3) {
 128
 129                         int ours_n[3];
 130                         int current_n[3];
 131
 132                         using namespace PBD;
 133
 134                         ours_n[0] = atoi (ours[0]);
 135                         ours_n[1] = atoi (ours[1]);
 136                         ours_n[2] = atoi (ours[2]);
 137
 138                         current_n[0] = atoi (current[0]);
 139                         current_n[1] = atoi (current[1]);
 140                         current_n[2] = atoi (current[2]);
 141
 142                         if (ours_n[0] < current_n[0] ||
 143                             ((ours_n[0] == current_n[0]) && (ours_n[1] < current_n[1])) ||
 144                             ((ours_n[0] == current_n[0]) && (ours_n[1] == current_n[1]) && (ours_n[2] < current_n[2]))) {
 145                                 cerr << "TOO OLD\n";
 146                         } else {
 147                                 cerr << "CURRENT\n";
 148                         }
 149                 } else {
 150                         cerr << "Unusual local version: " << version << endl;
 151                 }
 152         }
 153
 154         curl_easy_cleanup (c);
 155 }