From c9e4b2479aea056314b7d016441c44f735f1eceb Mon Sep 17 00:00:00 2001
From: Kris Moore <kris@pcbsd.org>
Date: Tue, 2 Feb 2016 11:06:45 -0500
Subject: [PATCH] Add a new API call to "systeminfo" class, which returns
 information about all processes on the system.

The below example was greatly truncated ;)

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

REST Response:
-------------------------------
{
    "args": {
        "procinfo": {
                  "228": {
        "command": "adjkerntz",
        "cpu": "3",
        "nice": "0",
        "pri": "52",
        "res": "1968K",
        "size": "8276K",
        "state": "pause",
        "thr": "1",
        "time": "0:00",
        "username": "root",
        "wcpu": "0.00%"
          }
        }
    }
}

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

WebSocket Response:
-------------------------------
{
  "args": {
    "procinfo": {
      "228": {
        "command": "adjkerntz",
        "cpu": "3",
        "nice": "0",
        "pri": "52",
        "res": "1968K",
        "size": "8276K",
        "state": "pause",
        "thr": "1",
        "time": "0:00",
        "username": "root",
        "wcpu": "0.00%"
      }
  },
  "id": "fooid",
  "name": "response",
  "namespace": "sysadm"
}
---
 src/server/WebBackend.cpp                |  4 +++
 src/server/library/sysadm-systeminfo.cpp | 38 ++++++++++++++++++++++++
 src/server/library/sysadm-systeminfo.h   |  1 +
 3 files changed, 43 insertions(+)

diff --git a/src/server/WebBackend.cpp b/src/server/WebBackend.cpp
index cb8c529..b45ed29 100644
--- a/src/server/WebBackend.cpp
+++ b/src/server/WebBackend.cpp
@@ -319,6 +319,10 @@ RestOutputStruct::ExitCode WebSocket::EvaluateSysadmSystemInfoRequest(const QJso
 	ok = true;
         out->insert("memorystats", sysadm::SysInfo::memoryStats());
       }
+      if(act=="procinfo"){
+	ok = true;
+        out->insert("procinfo", sysadm::SysInfo::procInfo());
+      }
       if(act=="systeminfo"){
 	ok = true;
         out->insert("systeminfo", sysadm::SysInfo::systemInfo());
diff --git a/src/server/library/sysadm-systeminfo.cpp b/src/server/library/sysadm-systeminfo.cpp
index 235da49..9015ec9 100644
--- a/src/server/library/sysadm-systeminfo.cpp
+++ b/src/server/library/sysadm-systeminfo.cpp
@@ -210,6 +210,44 @@ QJsonObject SysInfo::memoryStats() {
   return retObject;
 }
 
+// Return a json list of process information
+QJsonObject SysInfo::procInfo() {
+  QJsonObject retObject;
+  QStringList output;
+  output = General::RunCommand("top -t -n all").split("\n");
+  bool inSection = false;
+  for(int i=0; i<output.length(); i++){
+    if (output.at(i).contains("PID") && output.at(i).contains("USERNAME")){
+      inSection = true;
+      continue;	   
+    }
+    if (!inSection)
+      continue;
+    if ( output.at(i).isEmpty())
+      continue;
+
+    // Now, lets break down the various elements of process information
+    QJsonObject values;
+    QString line = output.at(i).simplified();
+    QString pid = line.section(" ", 0, 0);
+    values.insert("username", line.section(" ", 1, 1));
+    values.insert("thr", line.section(" ", 2, 2));
+    values.insert("pri", line.section(" ", 3, 3));
+    values.insert("nice", line.section(" ", 4, 4));
+    values.insert("size", line.section(" ", 5, 5));
+    values.insert("res", line.section(" ", 6, 6));
+    values.insert("state", line.section(" ", 7, 7));
+    values.insert("cpu", line.section(" ", 8, 8));
+    values.insert("time", line.section(" ", 9, 9));
+    values.insert("wcpu", line.section(" ", 10, 10));
+    values.insert("command", line.section(" ", 11, 11));
+
+    // Add the PID object
+    retObject.insert(pid, values);
+  }
+  return retObject;
+}
+
 // Return a bunch of various system information
 QJsonObject SysInfo::systemInfo() {
   QJsonObject retObject;
diff --git a/src/server/library/sysadm-systeminfo.h b/src/server/library/sysadm-systeminfo.h
index a9c1c4a..c0231c1 100644
--- a/src/server/library/sysadm-systeminfo.h
+++ b/src/server/library/sysadm-systeminfo.h
@@ -20,6 +20,7 @@ public:
 	static QJsonObject externalDevicePaths();
 	static QJsonObject memoryStats();
 	static QJsonObject systemInfo();
+	static QJsonObject procInfo();
 };
 	
 } //end of pcbsd namespace