Add @source command to help modified verions satisfy the AGPL

4 files changed, 41 insertions, 12 deletions

diff --git a/src/conf/version.hpp b/src/conf/version.hpp
index ab7a3d5..8dd31ed 100644
--- a/src/conf/version.hpp
+++ b/src/conf/version.hpp
@@ -9,7 +9,10 @@
 # include "conf-raw/int-VERSION_PATCH.h"
 # include "conf-raw/int-VERSION_DEVEL.h"
 
-# include "conf-raw/str-VENDOR.h"
-# include "conf-raw/int-VENDOR_VERSION.h"
+# include "conf-raw/str-VENDOR_NAME.h"
+# include "conf-raw/int-VENDOR_POINT.h"
+# include "conf-raw/str-VENDOR_SOURCE.h"
+
+# include "conf-raw/str-VERSION_STRING.h"
 
 #endif // TMWA_CONF_VERSION_HPP
diff --git a/src/map/atcommand.cpp b/src/map/atcommand.cpp
index 78a50ab..4b07a52 100644
--- a/src/map/atcommand.cpp
+++ b/src/map/atcommand.cpp
@@ -4,6 +4,8 @@
 #include <cstring>
 #include <ctime>
 
+#include "../conf/version.hpp"
+
 #include "../compat/nullpo.hpp"
 #include "../compat/fun.hpp"
 
@@ -4888,6 +4890,22 @@ ATCE atcommand_doomspot(Session *s, dumb_ptr<map_session_data> sd,
     return ATCE::OKAY;
 }
 
+static
+ATCE atcommand_source(Session *s, dumb_ptr<map_session_data>,
+        ZString)
+{
+    clif_displaymessage(s,
+            "This server code consists of Free Software under GPL3&AGPL3");
+    clif_displaymessage(s,
+            "This is commit " VERSION_HASH ", also known as " VERSION_FULL);
+    clif_displaymessage(s,
+            "The version is " VERSION_STRING);
+    clif_displaymessage(s,
+            "For source, see " VENDOR_SOURCE);
+
+    return ATCE::OKAY;
+}
+
 
 
 // declared extern above
@@ -5310,4 +5328,7 @@ Map<XString, AtCommandInfo> atcommand_info =
     {"doomspot", {"",
         60, atcommand_doomspot,
         "Kill all players on the same tile"}},
+    {"source", {"",
+        0, atcommand_source,
+        "Legal information about source code (must be a level 0 command!)"}},
 };
diff --git a/src/map/pc.cpp b/src/map/pc.cpp
index 7077b44..fa633b8 100644
--- a/src/map/pc.cpp
+++ b/src/map/pc.cpp
@@ -789,6 +789,14 @@ int pc_authok(int id, int login_id2, TimeT connect_until_time,
 // this is far from the only such thing, but most of the others are logs
 void pc_show_motd(dumb_ptr<map_session_data> sd)
 {
+    // Attention all forks: DO NOT REMOVE THIS NOTICE.
+    // It exists to meet legal requirements.
+    //
+    // If you remove the sending of this message,
+    // the license does not permit you to publicly use this software.
+
+    clif_displaymessage(sd->sess, "This server is Free Software, for details type @source in chat or use the tmwa-source tool");
+
     sd->state.seen_motd = true;
     io::ReadFile in(motd_txt);
     if (in.is_open())
diff --git a/src/mmo/version.cpp b/src/mmo/version.cpp
index dd18fe1..6f42f11 100644
--- a/src/mmo/version.cpp
+++ b/src/mmo/version.cpp
@@ -14,7 +14,7 @@ Version CURRENT_VERSION =
     VERSION_DEVEL,
 
     0, 0,
-    VENDOR_VERSION,
+    VENDOR_POINT,
 };
 Version CURRENT_LOGIN_SERVER_VERSION =
 {
@@ -22,7 +22,7 @@ Version CURRENT_LOGIN_SERVER_VERSION =
     VERSION_DEVEL,
 
     0, TMWA_SERVER_LOGIN,
-    VENDOR_VERSION,
+    VENDOR_POINT,
 };
 Version CURRENT_CHAR_SERVER_VERSION =
 {
@@ -30,7 +30,7 @@ Version CURRENT_CHAR_SERVER_VERSION =
     VERSION_DEVEL,
 
     0, TMWA_SERVER_CHAR | TMWA_SERVER_INTER,
-    VENDOR_VERSION,
+    VENDOR_POINT,
 };
 Version CURRENT_MAP_SERVER_VERSION =
 {
@@ -38,18 +38,15 @@ Version CURRENT_MAP_SERVER_VERSION =
     VERSION_DEVEL,
 
     0, TMWA_SERVER_MAP,
-    VENDOR_VERSION,
+    VENDOR_POINT,
 };
 
-#define S2(a) #a
-#define S(a) S2(a)
-
-const char CURRENT_VERSION_STRING[] = "TMWA "
-        S(VERSION_MAJOR) "." S(VERSION_MINOR) "." S(VERSION_PATCH)
-        " dev" S(VERSION_DEVEL) " (" VENDOR " " S(VENDOR_VERSION) ")";
+const char CURRENT_VERSION_STRING[] = VERSION_STRING;
 
 bool extract(XString str, Version *vers)
 {
     *vers = {};
+    // TODO should I try to extract dev and vend also?
+    // It would've been useful during the magic migration.
     return extract(str, record<'.'>(&vers->major, &vers->minor, &vers->patch));
 }