Add new API call to get a bunch of various system information back

REST Request:
-------------------------------
PUT /sysadm/systeminfo
{
   "action" : "systeminfo"
}

REST Response:
-------------------------------
{
    "args": {
        "systeminfo": {
            "arch": "amd64",
            "cpucores": "4",
            "cputype": "Intel(R) Xeon(R) CPU E3-1220 v3 @ 3.10GHz",
            "hostname": "krisdesktop",
            "kernelident": "GENERIC",
            "kernelversion": "10.2-RELEASE-p11",
            "systemversion": "10.2-RELEASE-p12",
            "totalmem": 10720,
            "uptime": "up 2 days 5:09"
        }
    }
}

WebSocket Request:
-------------------------------
{
   "args" : {
      "action" : "systeminfo"
   },
   "id" : "fooid",
   "name" : "systeminfo",
   "namespace" : "sysadm"
}

WebSocket Response:
-------------------------------
{
  "args": {
    "systeminfo": {
      "arch": "amd64",
      "cpucores": "4",
      "cputype": "Intel(R) Xeon(R) CPU E3-1220 v3 @ 3.10GHz",
      "hostname": "krisdesktop",
      "kernelident": "GENERIC",
      "kernelversion": "10.2-RELEASE-p11",
      "systemversion": "10.2-RELEASE-p12",
      "totalmem": 10720,
      "uptime": "up 2 days 5:09"
    }
  },
  "id": "fooid",
  "name": "response",
  "namespace": "sysadm"
}

src/library/sysadm-systeminfo.cpp

@@ -174,3 +174,41 @@ QJsonObject SysInfo::memoryPercentage() {
   return retObject;
 }
 
+// Return a bunch of various system information
+QJsonObject SysInfo::systemInfo() {
+  QJsonObject retObject;
+
+  QString arch = General::RunCommand("uname -m").simplified();
+  retObject.insert("arch", arch);
+
+  QString sysver = General::RunCommand("freebsd-version").simplified();
+  retObject.insert("systemversion", sysver);
+
+  QString kernver = General::RunCommand("uname -r").simplified();
+  retObject.insert("kernelversion", kernver);
+
+  QString kernident = General::RunCommand("uname -i").simplified();
+  retObject.insert("kernelident", kernident);
+
+  QString host = General::RunCommand("hostname").simplified();
+  retObject.insert("hostname", host);
+
+  QString uptime = General::RunCommand("uptime").simplified().section(" ", 1, 4).simplified().replace(",", "");
+  retObject.insert("uptime", uptime);
+
+  QString cputype = General::RunCommand("sysctl -n hw.model").simplified();
+  retObject.insert("cputype", cputype);
+
+  QString cpucores = General::RunCommand("sysctl -n kern.smp.cpus").simplified();
+  retObject.insert("cpucores", cpucores);
+
+  bool ok;
+  QString totalmem = General::RunCommand("sysctl -n hw.realmem").simplified();
+  totalmem.toDouble(&ok);
+  if ( ok ) {
+    retObject.insert("totalmem", totalmem.toDouble() / 1024 / 1024);
+  }
+
+  return retObject;
+}
+

src/library/sysadm-systeminfo.h

@@ -19,6 +19,7 @@ public:
 	static QJsonObject cpuTemps();
 	static QJsonObject externalDevicePaths();
 	static QJsonObject memoryPercentage();
+	static QJsonObject systemInfo();
 };
 	
 } //end of pcbsd namespace

src/server/WebBackend.cpp

@@ -275,6 +275,10 @@ RestOutputStruct::ExitCode WebSocket::EvaluateSysadmSystemInfoRequest(const QJso
 	ok = true;
         out->insert("memorypercentage", sysadm::SysInfo::memoryPercentage());
       }
+      if(act=="systeminfo"){
+	ok = true;
+        out->insert("systeminfo", sysadm::SysInfo::systemInfo());
+      }
 
     } //end of "action" key usage