first pass a "phone home" facility for version tracking and update notification

git-svn-id: svn://localhost/ardour2/branches/3.0@7549 d708f5d6-7413-0410-9779-e7cbd77b26cf

3 files changed, 74 insertions, 0 deletions

diff --git a/libs/ardour/ardour/callback.h b/libs/ardour/ardour/callback.h
new file mode 100644
index 0000000000..fe190dbd5e
--- /dev/null
+++ b/libs/ardour/ardour/callback.h
@@ -0,0 +1,8 @@
+#ifndef __libardour_callback_h__
+#define __libardour_callback_h__
+
+#include <string>
+
+void call_the_mothership (const std::string&);
+
+#endif /* __libardour_callback_h__ */
diff --git a/libs/ardour/callback.cc b/libs/ardour/callback.cc
new file mode 100644
index 0000000000..fceb1b4f4b
--- /dev/null
+++ b/libs/ardour/callback.cc
@@ -0,0 +1,65 @@
+#include <iostream>
+#include <string>
+
+#include <sys/utsname.h>
+#include <curl/curl.h>
+
+#include "pbd/compose.h"
+#include "ardour/callback.h"
+
+using namespace std;
+
+#define PING_URL "http://ardour.org/pingback/versioncheck"
+
+static size_t
+curl_write_data (char *bufptr, size_t size, size_t nitems, void *ptr)
+{
+        return size * nitems;
+}
+
+static string
+watermark ()
+{
+        return "";
+}
+
+void
+call_the_mothership (const string& version)
+{
+        CURL* c;
+        struct utsname utb;
+
+        if (uname (&utb)) {
+                return;
+        }
+        
+        curl_global_init (CURL_GLOBAL_NOTHING);
+
+        c = curl_easy_init ();
+
+        string data;
+        string wm;
+
+        data = string_compose ("version=%1&platform=%2 %3 %4", version, utb.sysname, utb.release, utb.machine);
+
+        wm = watermark();
+        if (!wm.empty()) {
+                data += string_compose ("&watermark=%1", wm);
+        }
+        
+        curl_easy_setopt(c, CURLOPT_POSTFIELDS, data.c_str());
+        curl_easy_setopt(c, CURLOPT_URL, PING_URL);
+        curl_easy_setopt(c, CURLOPT_WRITEFUNCTION, curl_write_data); 
+        curl_easy_setopt(c, CURLOPT_WRITEDATA, 0); 
+        
+        std::cerr << "Callback to ardour.org ...\n";
+
+        char errbuf[CURL_ERROR_SIZE];
+        curl_easy_setopt(c, CURLOPT_ERRORBUFFER, errbuf); 
+
+        if (curl_easy_perform (c) == 0) {
+
+        }
+        
+        curl_easy_cleanup (c);
+}
diff --git a/libs/ardour/wscript b/libs/ardour/wscript
index 0f103c9688..051054c9a7 100644
--- a/libs/ardour/wscript
+++ b/libs/ardour/wscript
@@ -61,6 +61,7 @@ libardour_sources = [
 	'buffer_set.cc',
 	'bundle.cc',
 	'butler.cc',
+        'callback.cc',
 	'chan_count.cc',
 	'chan_mapping.cc',
 	'configuration.cc',