[Windows Agent] Avoid execute module at first time if is out cron

pandora_agents/win32/misc/cron.cc

@@ -232,6 +232,22 @@ bool Cron::shouldExecuteAt (time_t date) {
     return this->utimestamp < date;
 }
 
+/**
+ * @brief Check if a module should be executed when utimestamp is not calculated yet
+ * 
+ * @param date Current date
+ * @return true It is not first time and current date fit in cron
+ * @return false Don't execute first time
+ */
+bool Cron::shouldExecuteAtFirst (time_t date) {
+
+    // Return true if it is not first
+    if (this->utimestamp != 0) return true;
+
+    // Check current date in cron
+    return isInCron(date);
+}
+
 /**
  * @brief Update the cron utimestamp
  * 

pandora_agents/win32/misc/cron.h

@@ -1,7 +1,7 @@
 /* Pandora cron manager for Win32.
    
-   Copyright (C) 2016 Artica ST.
-   Written by Ramon Novoa.
+   Copyright (C) 2018 Artica ST.
+   Written by Fermin Hernandez.
   
    This program is free software; you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
@@ -72,6 +72,7 @@ class Cron {
         // Other methods
         void                    update(time_t date, int interval);
         bool                    shouldExecuteAt(time_t date);
+        bool                    shouldExecuteAtFirst(time_t date);
 };
 
 #endif

pandora_agents/win32/modules/pandora_module.cc

@@ -1578,9 +1578,12 @@ Pandora_Module::checkCron (int interval) {
 	time_t now = time(NULL);
 	if (!this->cron->shouldExecuteAt(now)) return false;
 
+	// Check if should execute this module at first before update cron params
+	bool execute = this->cron->shouldExecuteAtFirst(now);
+	
 	this->cron->update(now, interval);
 
-	return true;
+	return execute;
 }
 
 /**