Version 0.0.1:

- Initial revision.

10 files changed, 906 insertions, 0 deletions

diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..84d3918
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,5 @@
+*.o
+*.mo
+*.so
+*.pot
+.dependencies
diff --git a/COPYING b/COPYING
new file mode 100644
index 0000000..f90922e
--- /dev/null
+++ b/COPYING
@@ -0,0 +1,340 @@
+		    GNU GENERAL PUBLIC LICENSE
+		       Version 2, June 1991
+
+ Copyright (C) 1989, 1991 Free Software Foundation, Inc.
+ 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
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diff --git a/HISTORY b/HISTORY
new file mode 100644
index 0000000..67e2731
--- /dev/null
+++ b/HISTORY
@@ -0,0 +1,6 @@
+VDR Plugin 'useractivity' Revision History
+------------------------------------------
+
+2007-07-03: Version 0.0.1
+
+- Initial revision.
diff --git a/Makefile b/Makefile
new file mode 100644
index 0000000..48b5b70
--- /dev/null
+++ b/Makefile
@@ -0,0 +1,105 @@
+#
+# Makefile for a Video Disk Recorder plugin
+#
+# $Id$
+
+# The official name of this plugin.
+# This name will be used in the '-P...' option of VDR to load the plugin.
+# By default the main source file also carries this name.
+# IPORTANT: the presence of this macro is important for the Make.config
+# file. So it must be defined, even if it is not used here!
+#
+PLUGIN = useractivity
+
+### Device directory
+
+DEV_DIR = /dev/
+
+### Check for X11 and X11 Screen Saver extension.
+
+USERACTIVITY_XSS = 0
+USERACTIVITY_XSS = $(shell (((echo "\#include <X11/Xlib.h>";echo "\#include <X11/extensions/scrnsaver.h>";echo "int main(void) {return 0;}") > testxss.c && gcc -c testxss.c -o testxss.o >/dev/null 2>&1) && echo "1") || echo "0" ; rm -f testxss.* >/dev/null)
+ifeq ($(USERACTIVITY_XSS), 0)
+  $(warning **********************************************************)
+  $(warning X11 or Xss not detected! Plugin will not detect X activity)
+  $(warning **********************************************************)
+endif
+
+### The version number of this plugin (taken from the main source file):
+
+VERSION = $(shell grep 'static const char \*VERSION *=' $(PLUGIN).c | awk '{ print $$6 }' | sed -e 's/[";]//g')
+
+### The C++ compiler and options:
+
+CXX      ?= g++
+CXXFLAGS ?= -fPIC -g -O2 -Wall -Woverloaded-virtual
+
+### The directory environment:
+
+VDRDIR = ../../..
+LIBDIR = ../../lib
+TMPDIR = /tmp
+
+### Allow user defined options to overwrite defaults:
+
+-include $(VDRDIR)/Make.config
+
+### The version number of VDR's plugin API (taken from VDR's "config.h"):
+
+APIVERSION = $(shell sed -ne '/define APIVERSION/s/^.*"\(.*\)".*$$/\1/p' $(VDRDIR)/config.h)
+
+### The name of the distribution archive:
+
+ARCHIVE = $(PLUGIN)-$(VERSION)
+PACKAGE = vdr-$(ARCHIVE)
+
+### Includes and Defines (add further entries here):
+
+INCLUDES += -I$(VDRDIR)/include
+
+DEFINES += -D_GNU_SOURCE -DPLUGIN_NAME_I18N='"$(PLUGIN)"'
+DEFINES += -DDEV_DIR='"$(DEV_DIR)"'
+ifeq ($(USERACTIVITY_XSS), 1)
+  DEFINES += -DUSE_XSS
+endif
+
+### The object files (add further files here):
+
+OBJS = $(PLUGIN).o activity.o i18n.o
+
+### Libraries
+
+LIBS = -lX11 -lXss
+
+### Implicit rules:
+
+%.o: %.c
+	$(CXX) $(CXXFLAGS) -c $(DEFINES) $(INCLUDES) $<
+
+# Dependencies:
+
+MAKEDEP = $(CXX) -MM -MG
+DEPFILE = .dependencies
+$(DEPFILE): Makefile
+	@$(MAKEDEP) $(DEFINES) $(INCLUDES) $(OBJS:%.o=%.c) > $@
+
+-include $(DEPFILE)
+
+### Targets:
+
+all: libvdr-$(PLUGIN).so
+
+libvdr-$(PLUGIN).so: $(OBJS)
+	$(CXX) $(CXXFLAGS) -shared $(OBJS) $(LIBS) -o $@
+	@cp --remove-destination $@ $(LIBDIR)/$@.$(APIVERSION)
+
+dist: clean
+	@-rm -rf $(TMPDIR)/$(ARCHIVE)
+	@mkdir $(TMPDIR)/$(ARCHIVE)
+	@cp -a * $(TMPDIR)/$(ARCHIVE)
+	@tar czf $(PACKAGE).tgz -C $(TMPDIR) $(ARCHIVE)
+	@-rm -rf $(TMPDIR)/$(ARCHIVE)
+	@echo Distribution package created as $(PACKAGE).tgz
+
+clean:
+	@-rm -f $(OBJS) $(DEPFILE) *.so *.tgz core* *~
diff --git a/README b/README
new file mode 100644
index 0000000..35ea29d
--- /dev/null
+++ b/README
@@ -0,0 +1,32 @@
+This is a "plugin" for the Video Disk Recorder (VDR).
+
+Written by:                  Timo Eskola <timo@tolleri.net>
+
+Project's homepage:          http://www.tolleri.net/vdr
+
+Latest version available at: http://www.tolleri.net/vdr
+
+See the file COPYING for license information.
+
+Description:
+
+Plugin prevents shutdown if there are active X or terminal users.
+
+Plugin also implements the followin SVDRP commands.
+
+GETI
+    Display minimum user inactivity in minutes.
+LSTU
+    Display a list of users.
+SETI <minutes>
+    Sets minimum user inactivity in minutes.
+
+Requirements:
+
+- utmp
+- X11 Screen Saver extension (optional)
+
+Xauthority:
+
+Depending on the way you start VDR, you might need to setup Xauthority 
+in order to get idle the time from X window.
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;
+}
diff --git a/activity.h b/activity.h
new file mode 100644
index 0000000..752efdb
--- /dev/null
+++ b/activity.h
@@ -0,0 +1,25 @@
+/*
+ * activity.h: A plugin for the Video Disk Recorder
+ *
+ * See the README file for copyright information and how to reach the author.
+ *
+ * $Id$
+ */
+
+#ifndef _USERACTILITY_ACTIVITY_H
+#define _USERACTILITY_ACTIVITY_H
+
+class cUserActivity {
+  private:
+#ifdef USE_XSS
+    static int DisplayIdleTime(char *display);
+#endif
+    static int DeviceIdleTime(char *device);
+  public:
+    static bool ActiveUsers(void);    
+    static void SetMinUserInactivity(int minutes);    
+    static int GetMinUserInactivity(void);    
+    static char *GetUsers(void);
+};
+
+#endif
diff --git a/i18n.c b/i18n.c
new file mode 100644
index 0000000..1e401e1
--- /dev/null
+++ b/i18n.c
@@ -0,0 +1,79 @@
+/*
+ * i18n.c: Internationalization
+ *
+ * See the README file for copyright information and how to reach the author.
+ *
+ * $Id:$
+ */
+
+#include "i18n.h"
+
+const tI18nPhrase Phrases[] = {
+  { "Active users",
+    "",// TODO
+    "",// TODO
+    "",// TODO
+    "",// TODO
+    "",// TODO
+    "",// TODO
+    "",// TODO
+    "Aktiiviset käyttäjät",
+    "",// TODO
+    "",// TODO
+    "",// TODO
+    "",// TODO
+    "",// TODO
+    "",// TODO
+    "",// TODO
+    "",// TODO
+    "",// TODO
+    "",// TODO
+    "",// TODO
+    "",// TODO
+  },
+  { "Prevents shutdown if there are active users",
+    "",// TODO
+    "",// TODO
+    "",// TODO
+    "",// TODO
+    "",// TODO
+    "",// TODO
+    "",// TODO
+    "Estää sammutuksen, jos järjestelmässä on aktiivisia käyttäjiä",
+    "",// TODO
+    "",// TODO
+    "",// TODO
+    "",// TODO
+    "",// TODO
+    "",// TODO
+    "",// TODO
+    "",// TODO
+    "",// TODO
+    "",// TODO
+    "",// TODO
+    "",// TODO
+  },
+  { "There are active users in the system",
+    "",// TODO
+    "",// TODO
+    "",// TODO
+    "",// TODO
+    "",// TODO
+    "",// TODO
+    "",// TODO
+    "Järjestelmässä on aktiivisia käyttäjiä",
+    "",// TODO
+    "",// TODO
+    "",// TODO
+    "",// TODO
+    "",// TODO
+    "",// TODO
+    "",// TODO
+    "",// TODO
+    "",// TODO
+    "",// TODO
+    "",// TODO
+    "",// TODO
+  },
+  { NULL }
+  };
diff --git a/i18n.h b/i18n.h
new file mode 100644
index 0000000..d36da2e
--- /dev/null
+++ b/i18n.h
@@ -0,0 +1,16 @@
+/*
+ * i18n.h: Internationalization
+ *
+ * See the README file for copyright information and how to reach the author.
+ *
+ * $Id:$
+ */
+
+#ifndef _I18N__H
+#define _I18N__H
+
+#include <vdr/i18n.h>
+
+extern const tI18nPhrase Phrases[];
+
+#endif //_I18N__H
diff --git a/useractivity.c b/useractivity.c
new file mode 100644
index 0000000..2a38120
--- /dev/null
+++ b/useractivity.c
@@ -0,0 +1,172 @@
+/*
+ * useractivity.c: A plugin for the Video Disk Recorder
+ *
+ * See the README file for copyright information and how to reach the author.
+ *
+ * $Id$
+ */
+
+#include <vdr/plugin.h>
+#include "i18n.h"
+#include "activity.h"
+
+static const char *VERSION        = "0.0.1";
+static const char *DESCRIPTION    = "Prevents shutdown if there are active users";
+//static const char *MAINMENUENTRY  = "Active users";
+
+class cPluginUseractivity : public cPlugin {
+private:
+  // Add any member variables or functions you may need here.
+public:
+  cPluginUseractivity(void);
+  virtual ~cPluginUseractivity();
+  virtual const char *Version(void) { return VERSION; }
+  virtual const char *Description(void) { return tr(DESCRIPTION); }
+  virtual const char *CommandLineHelp(void);
+  virtual bool ProcessArgs(int argc, char *argv[]);
+  virtual bool Initialize(void);
+  virtual bool Start(void);
+  virtual void Stop(void);
+  virtual void Housekeeping(void);
+  virtual void MainThreadHook(void);
+  virtual cString Active(void);
+  virtual const char *MainMenuEntry(void) { return NULL; /* tr(MAINMENUENTRY) */ }
+  virtual cOsdObject *MainMenuAction(void);
+  virtual cMenuSetupPage *SetupMenu(void);
+  virtual bool SetupParse(const char *Name, const char *Value);
+  virtual bool Service(const char *Id, void *Data = NULL);
+  virtual const char **SVDRPHelpPages(void);
+  virtual cString SVDRPCommand(const char *Command, const char *Option, int &ReplyCode);
+  };
+
+cPluginUseractivity::cPluginUseractivity(void)
+{
+  // Initialize any member variables here.
+  // DON'T DO ANYTHING ELSE THAT MAY HAVE SIDE EFFECTS, REQUIRE GLOBAL
+  // VDR OBJECTS TO EXIST OR PRODUCE ANY OUTPUT!
+}
+
+cPluginUseractivity::~cPluginUseractivity()
+{
+  // Clean up after yourself!
+}
+
+const char *cPluginUseractivity::CommandLineHelp(void)
+{
+  // Return a string that describes all known command line options.
+  return NULL;
+}
+
+bool cPluginUseractivity::ProcessArgs(int argc, char *argv[])
+{
+  // Implement command line argument processing here if applicable.
+  return true;
+}
+
+bool cPluginUseractivity::Initialize(void)
+{
+  // Initialize any background activities the plugin shall perform.
+  return true;
+}
+
+bool cPluginUseractivity::Start(void)
+{
+  // Start any background activities the plugin shall perform.
+  RegisterI18n(Phrases);
+  return true;
+}
+
+void cPluginUseractivity::Stop(void)
+{
+  // Stop any background activities the plugin shall perform.
+}
+
+void cPluginUseractivity::Housekeeping(void)
+{
+  // Perform any cleanup or other regular tasks.
+}
+
+void cPluginUseractivity::MainThreadHook(void)
+{
+  // Perform actions in the context of the main program thread.
+  // WARNING: Use with great care - see PLUGINS.html!
+}
+
+cString cPluginUseractivity::Active(void)
+{
+  // Return a message string if shutdown should be postponed
+  if(cUserActivity::ActiveUsers())
+    return tr("There are active users in the system");
+  else
+    return NULL;
+}
+
+cOsdObject *cPluginUseractivity::MainMenuAction(void)
+{
+  // Perform the action when selected from the main VDR menu.
+  return NULL;
+}
+
+cMenuSetupPage *cPluginUseractivity::SetupMenu(void)
+{
+  // Return a setup menu in case the plugin supports one.
+  return NULL;
+}
+
+bool cPluginUseractivity::SetupParse(const char *Name, const char *Value)
+{
+  // Parse your own setup parameters and store their values.
+  return false;
+}
+
+bool cPluginUseractivity::Service(const char *Id, void *Data)
+{
+  // Handle custom service requests from other plugins
+  return false;
+}
+
+const char **cPluginUseractivity::SVDRPHelpPages(void)
+{
+  // Return help text for SVDRP commands this plugin implements
+  static const char *HelpPages[] = {
+    "GETI\n"
+    "    Display minimum user inactivity in minutes.",
+    "LSTU\n"
+    "    Display a list of users.",
+    "SETI <minutes>\n"
+    "    Set minimum user inactivity in minutes.",
+    NULL
+    };
+  return HelpPages;
+}
+
+cString cPluginUseractivity::SVDRPCommand(const char *Command, const char *Option, int &ReplyCode)
+{
+  // Process SVDRP commands this plugin implements
+  if (strcasecmp(Command, "GETI") == 0) {
+    // we use the default reply code here
+    return cString::sprintf("Minimum user inactivity is %d minutes.", cUserActivity::GetMinUserInactivity());
+  }
+  else if (strcasecmp(Command, "LSTU") == 0) {
+    // we use the default reply code here
+    return cString(cUserActivity::GetUsers());
+  }
+  else if (strcasecmp(Command, "SETI") == 0) {
+    ReplyCode = 501;
+    if (*Option) {
+      int minutes = atoi(Option);
+      if (minutes >= 0) {
+        cUserActivity::SetMinUserInactivity(minutes);
+        ReplyCode = 250;
+        return cString::sprintf("Minimum user inactivity set to %d minutes.", minutes);
+      }
+      else 
+        return cString::sprintf("Invalid Option \"%s\"", Option);
+    }
+    else
+      return cString("No option given");
+  }
+  return NULL;
+}
+
+VDRPLUGINCREATOR(cPluginUseractivity); // Don't touch this!