1 files changed, 126 insertions, 0 deletions
diff --git a/activity.c b/activity.c
new file mode 100644
index 0000000..1575a41
--- /dev/null
+++ b/activity.c
@@ -0,0 +1,126 @@
+/*
+ * activity.c: A plugin for the Video Disk Recorder
+ *
+ * See the README file for copyright information and how to reach the author.
+ *
+ * $Id$
+ */
+
+#include <stdlib.h>
+#include <stdio.h>
+#include <syslog.h>
+#include <X11/Xlib.h>
+#include <X11/extensions/scrnsaver.h>
+#include <utmp.h>
+#include <string.h>
+#include <sstream>
+#include <sys/stat.h>
+#include <time.h>
+#include <vdr/config.h>
+#include "activity.h"
+
+#ifdef USE_XSS
+int cUserActivity::DisplayIdleTime(char *display) {
+  Display *d;
+  static XScreenSaverInfo *mitInfo = 0;
+  static int event, error, result=-1;
+
+  if (!(d = XOpenDisplay(display))) {
+    syslog(LOG_ERR, "useractivity: Unable to open DISPLAY %s\n", display);
+    return result;
+  }
+
+  if(XScreenSaverQueryExtension(d,&event,&error)) {
+    if (!mitInfo) mitInfo = XScreenSaverAllocInfo();
+    XScreenSaverQueryInfo(d, DefaultRootWindow (d), mitInfo);
+    result = (mitInfo->idle/1000)/60;
+  }
+  else {
+    syslog(LOG_ERR, "useractivity: MIT-SCREEN-SAVER missing\n");
+    return result;
+  }
+
+  XCloseDisplay(d);
+  return result;
+}
+#endif
+
+int cUserActivity::DeviceIdleTime(char *device) {
+  using namespace std;
+  stringstream stream;
+  struct stat stats;
+  time_t idle,now;
+
+  time(&now);
+
+  stream << DEV_DIR << device;
+  if(stat(stream.str().c_str(), &stats) == 0)
+    idle = (now - stats.st_atime)/60;
+  else
+    idle = -1;
+
+  return idle;
+}
+
+
+bool cUserActivity::ActiveUsers(void) {
+  struct utmp *uptr;
+  int idle;
+  bool result=false;
+
+  setutent();
+  while((uptr = getutent())!=NULL) {
+    if(uptr->ut_type == USER_PROCESS) {
+      idle = DeviceIdleTime(uptr->ut_line);
+#ifdef USE_XSS
+      if(idle < 0 && strchr(uptr->ut_line, ':') != NULL)
+        idle = DisplayIdleTime(uptr->ut_line);
+#endif
+      if(idle >= 0 && idle < Setup.MinUserInactivity) {
+        result = true;
+        break;
+      }
+    }
+  }
+  endutent();
+  return result;
+}
+
+void cUserActivity::SetMinUserInactivity(int minutes) {
+  Setup.MinUserInactivity = minutes;
+}    
+
+int cUserActivity::GetMinUserInactivity(void) {
+  return Setup.MinUserInactivity;
+}
+
+char *cUserActivity::GetUsers(void) {
+  struct utmp *uptr;
+  int idle;
+  using namespace std;
+  stringstream stream;
+
+  stream << "USER           DEVICE         IDLE" << endl;
+  setutent();
+  while((uptr = getutent())!=NULL) {
+    if(uptr->ut_type == USER_PROCESS) {
+      idle = DeviceIdleTime(uptr->ut_line);
+#ifdef USE_XSS
+      if(idle < 0 && strchr(uptr->ut_line, ':') != NULL)
+        idle = DisplayIdleTime(uptr->ut_line);
+#endif
+      stream.width(15);
+      stream << left << uptr->ut_user;
+      stream.width(15);
+      stream << left << uptr->ut_line;
+      stream.width(0);
+      stream << idle << endl;
+    }
+  }
+  endutent();
+  string resultString;
+  resultString = stream.str();
+  char *result = new char[resultString.size()+1];
+  strcpy(result, resultString.c_str());
+  return result;
+}