/
listsockets.cpp
249 lines (203 loc) · 5.9 KB
/
listsockets.cpp
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/*
* Copyright (C) 2004-2013 See the AUTHORS file for details.
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 as published
* by the Free Software Foundation.
*/
#include <znc/User.h>
#include <znc/znc.h>
class CSocketSorter {
public:
CSocketSorter(Csock* p) {
m_pSock = p;
}
bool operator<(const CSocketSorter& other) const {
// The 'biggest' item is displayed first.
// return false: this is first
// return true: other is first
// Listeners go to the top
if (m_pSock->GetType() != other.m_pSock->GetType()) {
if (m_pSock->GetType() == Csock::LISTENER)
return false;
if (other.m_pSock->GetType() == Csock::LISTENER)
return true;
}
const CString& sMyName = m_pSock->GetSockName();
const CString& sMyName2 = sMyName.Token(1, true, "::");
bool bMyEmpty = sMyName2.empty();
const CString& sHisName = other.GetSock()->GetSockName();
const CString& sHisName2 = sHisName.Token(1, true, "::");
bool bHisEmpty = sHisName2.empty();
// Then sort by first token after "::"
if (bMyEmpty && !bHisEmpty)
return false;
if (bHisEmpty && !bMyEmpty)
return true;
if (!bMyEmpty && !bHisEmpty) {
int c = sMyName2.StrCmp(sHisName2);
if (c < 0)
return false;
if (c > 0)
return true;
}
// and finally sort by the whole socket name
return sMyName.StrCmp(sHisName) > 0;
}
Csock* GetSock() const { return m_pSock; }
private:
Csock* m_pSock;
};
class CListSockets : public CModule {
public:
MODCONSTRUCTOR(CListSockets) {}
virtual bool OnLoad(const CString& sArgs, CString& sMessage)
{
#ifndef MOD_LISTSOCKETS_ALLOW_EVERYONE
if (!m_pUser->IsAdmin()) {
sMessage = "You must be admin to use this module";
return false;
}
#endif
return true;
}
std::priority_queue<CSocketSorter> GetSockets() {
CSockManager& m = CZNC::Get().GetManager();
std::priority_queue<CSocketSorter> ret;
for (unsigned int a = 0; a < m.size(); a++) {
Csock* pSock = m[a];
// These sockets went through SwapSockByAddr. That means
// another socket took over the connection from this
// socket. So ignore this to avoid listing the
// connection twice.
if (pSock->GetCloseType() == Csock::CLT_DEREFERENCE)
continue;
ret.push(pSock);
}
return ret;
}
virtual bool WebRequiresAdmin() { return true; }
virtual CString GetWebMenuTitle() { return "List sockets"; }
virtual bool OnWebRequest(CWebSock& WebSock, const CString& sPageName, CTemplate& Tmpl) {
if (sPageName == "index") {
if (CZNC::Get().GetManager().empty()) {
return false;
}
std::priority_queue<CSocketSorter> socks = GetSockets();
while (!socks.empty()) {
Csock* pSocket = socks.top().GetSock();
socks.pop();
CTemplate& Row = Tmpl.AddRow("SocketsLoop");
Row["Name"] = pSocket->GetSockName();
Row["Created"] = GetCreatedTime(pSocket);
Row["State"] = GetSocketState(pSocket);
Row["SSL"] = pSocket->GetSSL() ? "Yes" : "No";
Row["Local"] = GetLocalHost(pSocket, true);
Row["Remote"] = GetRemoteHost(pSocket, true);
}
return true;
}
return false;
}
virtual void OnModCommand(const CString& sLine) {
CString sCommand = sLine.Token(0);
CString sArg = sLine.Token(1, true);
if (sCommand.Equals("LIST")) {
bool bShowHosts = true;
if (sArg.Equals("-n")) {
bShowHosts = false;
}
ShowSocks(bShowHosts);
} else {
PutModule("Use 'list' to view a list of active sockets");
PutModule("Use 'list -n' if you want IP addresses to be displayed");
}
}
CString GetSocketState(Csock* pSocket) {
switch (pSocket->GetType()) {
case Csock::LISTENER:
return "Listener";
case Csock::INBOUND:
return "Inbound";
case Csock::OUTBOUND:
if (pSocket->IsConnected())
return "Outbound";
else
return "Connecting";
}
return "UNKNOWN";
}
CString GetCreatedTime(Csock* pSocket) {
unsigned long long iStartTime = pSocket->GetStartTime();
time_t iTime = iStartTime / 1000;
return CUtils::FormatTime(iTime, "%Y-%m-%d %H:%M:%S", m_pUser->GetTimezone());
}
CString GetLocalHost(Csock* pSocket, bool bShowHosts) {
CString sBindHost;
if (bShowHosts) {
sBindHost = pSocket->GetBindHost();
}
if (sBindHost.empty()) {
sBindHost = pSocket->GetLocalIP();
}
return sBindHost + " " + CString(pSocket->GetLocalPort());
}
CString GetRemoteHost(Csock* pSocket, bool bShowHosts) {
CString sHost;
u_short uPort;
if (!bShowHosts) {
sHost = pSocket->GetRemoteIP();
}
// While connecting, there might be no ip available
if (sHost.empty()) {
sHost = pSocket->GetHostName();
}
// While connecting, GetRemotePort() would return 0
if (pSocket->GetType() == Csock::OUTBOUND) {
uPort = pSocket->GetPort();
} else {
uPort = pSocket->GetRemotePort();
}
if (uPort != 0) {
return sHost + " " + CString(uPort);
}
return sHost;
}
void ShowSocks(bool bShowHosts) {
if (CZNC::Get().GetManager().empty()) {
PutStatus("You have no open sockets.");
return;
}
std::priority_queue<CSocketSorter> socks = GetSockets();
CTable Table;
Table.AddColumn("Name");
Table.AddColumn("Created");
Table.AddColumn("State");
#ifdef HAVE_LIBSSL
Table.AddColumn("SSL");
#endif
Table.AddColumn("Local");
Table.AddColumn("Remote");
while (!socks.empty()) {
Csock* pSocket = socks.top().GetSock();
socks.pop();
Table.AddRow();
Table.SetCell("Name", pSocket->GetSockName());
Table.SetCell("Created", GetCreatedTime(pSocket));
Table.SetCell("State", GetSocketState(pSocket));
#ifdef HAVE_LIBSSL
Table.SetCell("SSL", pSocket->GetSSL() ? "Yes" : "No");
#endif
Table.SetCell("Local", GetLocalHost(pSocket, bShowHosts));
Table.SetCell("Remote", GetRemoteHost(pSocket, bShowHosts));
}
PutModule(Table);
return;
}
virtual ~CListSockets() {
}
};
template<> void TModInfo<CListSockets>(CModInfo& Info) {
Info.SetWikiPage("listsockets");
}
USERMODULEDEFS(CListSockets, "List active sockets")