Merge pull request #391 from erqan/groups

enables readding a group key by `rescandirectmsgs` and `creategroup`

src/clientversion.h

@@ -8,7 +8,7 @@
 // These need to be macros, as version.cpp's and bitcoin-qt.rc's voodoo requires it
 #define CLIENT_VERSION_MAJOR       0
 #define CLIENT_VERSION_MINOR       9
-#define CLIENT_VERSION_REVISION    37
+#define CLIENT_VERSION_REVISION    38
 #define CLIENT_VERSION_BUILD       0
 
 // Set to true for release, false for prerelease or test build

src/twister.cpp

@@ -1206,7 +1206,7 @@ string getGroupAliasByKey(const string &privKey)
 void registerNewGroup(const string &privKey, const string &desc, const string &member, const string &invitedBy, int64_t utcTime, int k)
 {
     string groupAlias = getGroupAliasByKey(privKey);
-    if( !groupAlias.length() ) {
+
     CBitcoinSecret vchSecret;
     bool fGood = vchSecret.SetString(privKey);
     if (!fGood) {
@@ -1225,7 +1225,7 @@ void registerNewGroup(const string &privKey, const string &desc, const string &m
                 printf("registerGroupMember: Invalid group alias '%s' from wallet\n", groupAlias.c_str());
                 return;
             }
-            } else {
+        } else if (!groupAlias.length()) {
             groupAlias = getRandomGroupAlias();
         }
 
@@ -1235,7 +1235,6 @@ void registerNewGroup(const string &privKey, const string &desc, const string &m
             return;
         }
     }
-    }
 
     LOCK(cs_twister);
     GroupChat &group = m_groups[groupAlias];
@@ -3866,19 +3865,26 @@ Object getLibtorrentSessionStatus()
 
 Value creategroup(const Array& params, bool fHelp)
 {
-    if (fHelp || params.size() != 1)
+    if (fHelp || params.size() < 1 || params.size() > 2)
         throw runtime_error(
-            "creategroup <description>\n"
-            "Create a new key pair for group chat and add it to wallet\n"
-            "Hint: use groupcreate to invite yourself\n"
+            "creategroup <description> [<groupprivkey>]\n"
+            "Create (if <groupprivkey> is omited) a new key pair for group chat and add it to wallet\n"
+            "Or import the given <groupprivkey> into wallet\n"
+            "Hint: use newgroupinvite to invite yourself\n"
             "Returns the group alias");
 
     string strDescription = params[0].get_str();
+    string privKey;
 
+    if (params.size() == 2)
+        privKey = params[1].get_str();
+    else
+    {
         RandAddSeedPerfmon();
         CKey secret;
         secret.MakeNewKey(true);
-    string privKey = CBitcoinSecret(secret).ToString();
+        privKey = CBitcoinSecret(secret).ToString();
+    }
 
     string noMember;
     registerNewGroup(privKey, strDescription, noMember, noMember, GetTime(), -1);