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/*
* Copyright (C) 2004-2025 ZNC, see the NOTICE file for details.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include <znc/User.h>
#include <znc/znc.h>
#include <time.h>
using std::map;
using std::pair;
using std::multimap;
class CLastSeenMod : public CModule {
private:
time_t GetTime(const CUser* pUser) {
return GetNV(pUser->GetUsername()).ToULong();
}
void SetTime(const CUser* pUser) {
SetNV(pUser->GetUsername(), CString(time(nullptr)));
}
const CString FormatLastSeen(const CUser* pUser,
const CString& sDefault = "") {
time_t last = GetTime(pUser);
if (last < 1) {
return sDefault;
} else {
char buf[1024];
strftime(buf, sizeof(buf) - 1, "%c", localtime(&last));
return buf;
}
}
typedef multimap<time_t, CUser*> MTimeMulti;
typedef map<CString, CUser*> MUsers;
// Shows all users as well as the time they were last seen online
void ShowCommand(const CString& sLine) {
if (!GetUser()->IsAdmin()) {
PutModule(t_s("Access denied"));
return;
}
const MUsers& mUsers = CZNC::Get().GetUserMap();
MUsers::const_iterator it;
CTable Table;
Table.AddColumn(t_s("User", "show"));
Table.AddColumn(t_s("Last Seen", "show"));
Table.SetStyle(CTable::ListStyle);
for (it = mUsers.begin(); it != mUsers.end(); ++it) {
Table.AddRow();
Table.SetCell(t_s("User", "show"), it->first);
Table.SetCell(t_s("Last Seen", "show"),
FormatLastSeen(it->second, t_s("never")));
}
PutModule(Table);
}
public:
MODCONSTRUCTOR(CLastSeenMod) {
AddHelpCommand();
AddCommand("Show", "",
t_d("Shows list of users and when they last logged in"),
[=](const CString& sLine) { ShowCommand(sLine); });
}
~CLastSeenMod() override {}
// Event stuff:
void OnClientLogin() override { SetTime(GetUser()); }
void OnClientDisconnect() override { SetTime(GetUser()); }
EModRet OnDeleteUser(CUser& User) override {
DelNV(User.GetUsername());
return CONTINUE;
}
// Web stuff:
bool WebRequiresAdmin() override { return true; }
CString GetWebMenuTitle() override { return t_s("Last Seen"); }
bool OnWebRequest(CWebSock& WebSock, const CString& sPageName,
CTemplate& Tmpl) override {
if (sPageName == "index") {
CModules& GModules = CZNC::Get().GetModules();
Tmpl["WebAdminLoaded"] =
CString(GModules.FindModule("webadmin") != nullptr);
MTimeMulti mmSorted;
const MUsers& mUsers = CZNC::Get().GetUserMap();
for (MUsers::const_iterator uit = mUsers.begin();
uit != mUsers.end(); ++uit) {
mmSorted.insert(
pair<time_t, CUser*>(GetTime(uit->second), uit->second));
}
for (MTimeMulti::const_iterator it = mmSorted.begin();
it != mmSorted.end(); ++it) {
CUser* pUser = it->second;
CTemplate& Row = Tmpl.AddRow("UserLoop");
Row["Username"] = pUser->GetUsername();
Row["IsSelf"] =
CString(pUser == WebSock.GetSession()->GetUser());
Row["LastSeen"] = FormatLastSeen(pUser, t_s("never"));
}
return true;
}
return false;
}
bool OnEmbeddedWebRequest(CWebSock& WebSock, const CString& sPageName,
CTemplate& Tmpl) override {
if (sPageName == "webadmin/user" && WebSock.GetSession()->IsAdmin()) {
CUser* pUser = CZNC::Get().FindUser(Tmpl["Username"]);
if (pUser) {
Tmpl["LastSeen"] = FormatLastSeen(pUser);
}
return true;
}
return false;
}
};
template <>
void TModInfo<CLastSeenMod>(CModInfo& Info) {
Info.SetWikiPage("lastseen");
}
GLOBALMODULEDEFS(CLastSeenMod,
t_s("Collects data about when a user last logged in."))
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