From 1f4a253ae3448cbda761f58fd627fd3c39a030b9 Mon Sep 17 00:00:00 2001
From: Rudolf Polzer <divverent@alientrap.org>
Date: Sat, 4 Dec 2010 18:32:09 +0100
Subject: [PATCH] temporary hack: a cvar "popcon" - transmits info to our
 server about which cvars have been changed from default and which not. Should
 help with later tuning the menu option choice.

---
 Makefile                   |  2 +-
 defaultXonotic.cfg         |  3 +++
 qcsrc/menu/xonotic/util.qc | 39 ++++++++++++++++++++++++++++++++++++--
 3 files changed, 41 insertions(+), 3 deletions(-)

diff --git a/Makefile b/Makefile
index c5871ad4e..caab47a80 100644
--- a/Makefile
+++ b/Makefile
@@ -5,7 +5,7 @@ ZIP ?= 7za a -tzip -mx=9
 ZIPEXCLUDE ?= -x\!*.pk3 -xr\!\.svn -x\!qcsrc
 DIFF ?= diff
 
-FTEQCCFLAGS_WATERMARK ?= -DWATERMARK='"^1$(shell git describe) TEST BUILD"'
+FTEQCCFLAGS_WATERMARK ?= -DWATERMARK='"^1$(shell git describe) TEST BUILD"' -DCVAR_POPCON
 FTEQCCFLAGS ?= -Werror -Wno-Q302 -O3 -Ono-c -Ono-cs $(FTEQCCFLAGS_EXTRA) $(FTEQCCFLAGS_WATERMARK)
 FTEQCCFLAGS_PROGS ?=
 FTEQCCFLAGS_MENU ?=
diff --git a/defaultXonotic.cfg b/defaultXonotic.cfg
index 6ec248453..eb67b8492 100644
--- a/defaultXonotic.cfg
+++ b/defaultXonotic.cfg
@@ -25,6 +25,9 @@ gameversion_max 65535 // git builds see all versions
 // server about changes)
 alias setreport "set \"$1\" \"$2\" ; sendcvar \"$1\""
 
+seta cl_firststart "" "how many times the client has been run"
+seta cl_startcount 0 "how many times the client has been run"
+
 // detect dedicated server or client
 alias "_detect_dedicated_$qport" "${* asis}"
 alias "_detect_dedicated_0" ""
diff --git a/qcsrc/menu/xonotic/util.qc b/qcsrc/menu/xonotic/util.qc
index c6fca21ac..6c43e0696 100644
--- a/qcsrc/menu/xonotic/util.qc
+++ b/qcsrc/menu/xonotic/util.qc
@@ -359,8 +359,43 @@ void preMenuDraw()
 		if(!_Nex_ExtResponseSystem_Queried)
 		{
 			_Nex_ExtResponseSystem_Queried = 1;
-			uri_get(sprintf("http://www.xonotic.org/dl/checkupdate.txt?version=%s", uri_escape(cvar_string("g_xonoticversion"))), URI_GET_UPDATENOTIFICATION);
-			//crypto_uri_postbuf(sprintf("http://www.xonotic.org/dl/t/checkupdate2.cgi?version=%s", uri_escape(cvar_string("g_xonoticversion"))), URI_GET_UPDATENOTIFICATION, "application/x-www-urlencoded", "hello=world&foo=bar", -1, 0);
+			float startcnt;
+			string uri;
+
+			cvar_set("cl_startcount", ftos(startcnt = cvar("cl_startcount") + 1));
+
+			// for privacy, munge the start count a little
+			startcnt = floor((floor(startcnt / 10) + random()) * 10);
+			uri = sprintf("http://www.xonotic.org/dl/checkupdate.txt?version=%s&cnt=%d", uri_escape(cvar_string("g_xonoticversion")), startcnt);
+
+#ifdef CVAR_POPCON
+			float cvar_handle, popcon_handle;
+			float n, i, j;
+			string k, s;
+			cvar_handle = buf_create();
+			buf_cvarlist(cvar_handle, "", "");
+			n = buf_getsize(cvar_handle);
+			popcon_handle = buf_create();
+			for(i= 0, j = 0; i < n; ++i)
+			{
+				k = bufstr_get(cvar_handle, i);
+				if(!(cvar_type(k) & CVAR_TYPEFLAG_SAVED))
+					continue;
+				s = sprintf("%s=%d", uri_escape(k), cvar_string(k) != cvar_defstring(k));
+				bufstr_set(popcon_handle, j, s);
+				++j;
+			}
+			buf_del(cvar_handle);
+			uri_postbuf(
+				uri, URI_GET_UPDATENOTIFICATION,
+				"application/x-www-urlencoded",
+				"&",
+				popcon_handle
+			);
+			buf_del(popcon_handle);
+#else
+			uri_get(uri, URI_GET_UPDATENOTIFICATION);
+#endif
 		}
 	}
 
-- 
2.39.2