Add new API call to iohyve to remove a iso dataset

Target is the iso we are removing from iohyve

REST Request:
-------------------------------
PUT /sysadm/iohyve
{
   "action" : "rmiso",
   "target" : "FreeBSD-10.2-RELEASE-amd64-bootonly.iso"
}

WebSocket Request:
-------------------------------
{
   "id" : "fooid",
   "name" : "iohyve",
   "args" : {
      "target" : "FreeBSD-10.2-RELEASE-amd64-bootonly.iso",
      "action" : "rmiso"
   },
   "namespace" : "sysadm"
}

Response:
-------------------------------
{
  "args": {
    "rmiso": {
      "target": "FreeBSD-10.2-RELEASE-amd64-bootonly.iso"
    }
  },
  "id": "fooid",
  "name": "response",
  "namespace": "sysadm"
}

src/server/WebBackend.cpp

@@ -449,7 +449,10 @@ RestOutputStruct::ExitCode WebSocket::EvaluateSysadmIohyveRequest(const QJsonVal
 	ok = true;
         out->insert("renameiso", sysadm::Iohyve::renameISO(in_args.toObject()));
       }
-
+      if(act=="rmiso"){
+	ok = true;
+        out->insert("rmiso", sysadm::Iohyve::rmISO(in_args.toObject()));
+      }
     } //end of "action" key usage
 
     //If nothing done - return the proper code

src/server/library/sysadm-iohyve.cpp

@@ -98,4 +98,28 @@ QJsonObject Iohyve::renameISO(QJsonObject jsin) {
   return retObject;
 }
 
+// Remove an ISO file
+QJsonObject Iohyve::rmISO(QJsonObject jsin) {
+  QJsonObject retObject;
+
+  QStringList keys = jsin.keys();
+  if (! keys.contains("target") ) {
+    retObject.insert("error", "Missing required key 'target'");
+    return retObject;
+  }
+
+  // Get the key values
+  QString target = jsin.value("target").toString();
+
+  QStringList output = General::RunCommand("iohyve rmiso " + target).split("\n");
+  for ( int i = 0; i < output.size(); i++)
+  {
+    if ( output.at(i).indexOf("cannot open") != -1 ) {
+      retObject.insert("error", output.at(i));
+      return retObject;
+    }
+  }
+  retObject.insert("target", target);
+  return retObject;
+}
 

src/server/library/sysadm-iohyve.h

@@ -17,6 +17,7 @@ public:
 	static QJsonObject fetchISO(QJsonObject);
 	static QJsonObject listVMs();
 	static QJsonObject renameISO(QJsonObject);
+	static QJsonObject rmISO(QJsonObject);
 };
 	
 } //end of pcbsd namespace