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/callback.h"
  20 #include "ardour/filesystem_paths.h"
  21
  22 using namespace std;
  23
  24 #define PING_URL "http://ardour.org/pingback/versioncheck"
  25 #define OFF_THE_HOOK ".offthehook"
  26
  27 static size_t
  28 curl_write_data (char *bufptr, size_t size, size_t nitems, void *ptr)
  29 {
  30         /* we know its a string */
  31
  32         string* sptr = (string*) ptr;
  33
  34         for (size_t i = 0; i < nitems; ++i) {
  35                 for (size_t n = 0; n < size; ++n) {
  36                         if (*bufptr == '\n') {
  37                                 break;
  38                         }
  39
  40                         (*sptr) += *bufptr++;
  41                 }
  42         }
  43
  44         return size * nitems;
  45 }
  46
  47 static string
  48 watermark ()
  49 {
  50         return string();
  51 }
  52
  53 void
  54 block_mothership ()
  55 {
  56         string hangup = Glib::build_filename (ARDOUR::user_config_directory().to_string(), OFF_THE_HOOK);
  57         int fd;
  58         if ((fd = ::open (hangup.c_str(), O_RDWR|O_CREAT, 0600)) >= 0) {
  59                 close (fd);
  60         }
  61 }
  62
  63 void
  64 unblock_mothership ()
  65 {
  66         string hangup = Glib::build_filename (ARDOUR::user_config_directory().to_string(), OFF_THE_HOOK);
  67         ::unlink (hangup.c_str());
  68 }
  69
  70 bool
  71 mothership_blocked ()
  72 {
  73         string hangup = Glib::build_filename (ARDOUR::user_config_directory().to_string(), OFF_THE_HOOK);
  74         return Glib::file_test (hangup, Glib::FILE_TEST_EXISTS);
  75 }
  76
  77 void
  78 call_the_mothership (const string& version)
  79 {
  80         /* check if the user says never to do this
  81          */
  82
  83         if (mothership_blocked()) {
  84                 return;
  85         }
  86
  87         CURL* c;
  88         struct utsname utb;
  89         std::string versionstr;
  90
  91         if (uname (&utb)) {
  92                 return;
  93         }
  94
  95         curl_global_init (CURL_GLOBAL_NOTHING);
  96
  97         c = curl_easy_init ();
  98
  99         string data;
 100         string wm;
 101
 102         data = string_compose ("version=%1&platform=%2 %3 %4", version, utb.sysname, utb.release, utb.machine);
 103
 104         wm = watermark();
 105         if (!wm.empty()) {
 106                 data += string_compose ("&watermark=%1", wm);
 107         }
 108
 109         curl_easy_setopt(c, CURLOPT_POSTFIELDS, data.c_str());
 110         curl_easy_setopt(c, CURLOPT_URL, PING_URL);
 111         curl_easy_setopt(c, CURLOPT_WRITEFUNCTION, curl_write_data);
 112         curl_easy_setopt(c, CURLOPT_WRITEDATA, &versionstr);
 113
 114         std::cerr << "Callback to ardour.org ...\n";
 115
 116         char errbuf[CURL_ERROR_SIZE];
 117         curl_easy_setopt(c, CURLOPT_ERRORBUFFER, errbuf);
 118
 119         if (curl_easy_perform (c) == 0) {
 120                 cerr << "Current release is " << versionstr << endl;
 121
 122                 vector<string> ours;
 123                 vector<string> current;
 124
 125                 split (version, ours, '.');
 126                 split (versionstr, current, '.');
 127
 128                 if (ours.size() == 3 && current.size() == 3) {
 129
 130                         int ours_n[3];
 131                         int current_n[3];
 132
 133                         using namespace PBD;
 134
 135                         ours_n[0] = atoi (ours[0]);
 136                         ours_n[1] = atoi (ours[1]);
 137                         ours_n[2] = atoi (ours[2]);
 138
 139                         current_n[0] = atoi (current[0]);
 140                         current_n[1] = atoi (current[1]);
 141                         current_n[2] = atoi (current[2]);
 142
 143                         if (ours_n[0] < current_n[0] ||
 144                             ((ours_n[0] == current_n[0]) && (ours_n[1] < current_n[1])) ||
 145                             ((ours_n[0] == current_n[0]) && (ours_n[1] == current_n[1]) && (ours_n[2] < current_n[2]))) {
 146                                 cerr << "TOO OLD\n";
 147                         } else {
 148                                 cerr << "CURRENT\n";
 149                         }
 150                 } else {
 151                         cerr << "Unusual local version: " << version << endl;
 152                 }
 153         }
 154
 155         curl_easy_cleanup (c);
 156 }