Enhance the sqlite3_user_add() interface to initialize the user

authentication logic.  Add test cases for the extra argument on the
end of the authorizer callback.

FossilOrigin-Name: 842c6da8f1a62bd13a1b4089a98b0835a46a2285

src/build.c

@@ -158,18 +158,11 @@ void sqlite3FinishCoding(Parse *pParse){
 
 #if SQLITE_USER_AUTHENTICATION
     if( pParse->nTableLock>0 && db->init.busy==0 ){
+      sqlite3UserAuthInit(db);
       if( db->auth.authLevel<UAUTH_User ){
-        if( db->auth.authLevel==UAUTH_Unknown ){
-          u8 authLevel = UAUTH_Fail;
-          sqlite3UserAuthCheckLogin(db, "main", &authLevel);
-          db->auth.authLevel = authLevel;
-          if( authLevel<UAUTH_Admin ) db->flags &= ~SQLITE_WriteSchema;
-        }
-        if( db->auth.authLevel<UAUTH_User ){
-          pParse->rc = SQLITE_AUTH_USER;
-          sqlite3ErrorMsg(pParse, "user not authenticated");
-          return;
-        }
+        pParse->rc = SQLITE_AUTH_USER;
+        sqlite3ErrorMsg(pParse, "user not authenticated");
+        return;
       }
     }
 #endif

src/shell.c

@@ -3445,6 +3445,7 @@ static int do_meta_command(char *zLine, ShellState *p){
       rc = 1;
       goto meta_command_exit;
     }
+    open_db(p, 0);
     if( strcmp(azArg[1],"login")==0 ){
       if( nArg!=4 ){
         fprintf(stderr, "Usage: .user login USER PASSWORD\n");

src/sqliteInt.h

@@ -1010,6 +1010,7 @@ struct sqlite3_userauth {
 /* Functions used only by user authorization logic */
 int sqlite3UserAuthTable(const char*);
 int sqlite3UserAuthCheckLogin(sqlite3*,const char*,u8*);
+void sqlite3UserAuthInit(sqlite3*);
 void sqlite3CryptFunc(sqlite3_context*,int,sqlite3_value**);
 
 #endif /* SQLITE_USER_AUTHENTICATION */