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/* +------------------------------------+
* | Inspire Internet Relay Chat Daemon |
* +------------------------------------+
*
* InspIRCd: (C) 2002-2007 InspIRCd Development Team
* See: http://www.inspircd.org/wiki/index.php/Credits
*
* This program is free but copyrighted software; see
* the file COPYING for details.
*
* ---------------------------------------------------
*/
#include "inspircd.h"
#include "configreader.h"
#include "channels.h"
#include "users.h"
#include <stdarg.h>
#include "socketengine.h"
#include "wildcard.h"
#include "xline.h"
#include "commands/cmd_whowas.h"
static unsigned long already_sent[MAX_DESCRIPTORS] = {0};
/* XXX: Used for speeding up WriteCommon operations */
unsigned long uniq_id = 0;
bool InitTypes(ServerConfig* conf, const char* tag)
{
if (conf->opertypes.size())
{
for (opertype_t::iterator n = conf->opertypes.begin(); n != conf->opertypes.end(); n++)
{
if (n->second)
delete[] n->second;
}
}
conf->opertypes.clear();
return true;
}
bool InitClasses(ServerConfig* conf, const char* tag)
{
if (conf->operclass.size())
{
for (operclass_t::iterator n = conf->operclass.begin(); n != conf->operclass.end(); n++)
{
if (n->second)
delete[] n->second;
}
}
conf->operclass.clear();
return true;
}
bool DoType(ServerConfig* conf, const char* tag, char** entries, ValueList &values, int* types)
{
const char* TypeName = values[0].GetString();
const char* Classes = values[1].GetString();
conf->opertypes[TypeName] = strnewdup(Classes);
return true;
}
bool DoClass(ServerConfig* conf, const char* tag, char** entries, ValueList &values, int* types)
{
const char* ClassName = values[0].GetString();
const char* CommandList = values[1].GetString();
conf->operclass[ClassName] = strnewdup(CommandList);
return true;
}
bool DoneClassesAndTypes(ServerConfig* conf, const char* tag)
{
return true;
}
std::string userrec::ProcessNoticeMasks(const char *sm)
{
bool adding = true, oldadding = false;
const char *c = sm;
std::string output;
while (c && *c)
{
switch (*c)
{
case '+':
adding = true;
break;
case '-':
adding = false;
break;
case '*':
for (unsigned char d = 'A'; d <= 'z'; d++)
{
if (ServerInstance->SNO->IsEnabled(d))
{
if ((!IsNoticeMaskSet(d) && adding) || (IsNoticeMaskSet(d) && !adding))
{
if ((oldadding != adding) || (!output.length()))
output += (adding ? '+' : '-');
this->SetNoticeMask(d, adding);
output += d;
}
}
oldadding = adding;
}
break;
default:
if ((*c >= 'A') && (*c <= 'z') && (ServerInstance->SNO->IsEnabled(*c)))
{
if ((!IsNoticeMaskSet(*c) && adding) || (IsNoticeMaskSet(*c) && !adding))
{
if ((oldadding != adding) || (!output.length()))
output += (adding ? '+' : '-');
this->SetNoticeMask(*c, adding);
output += *c;
}
}
oldadding = adding;
break;
}
*c++;
}
return output;
}
void userrec::StartDNSLookup()
{
try
{
bool cached;
const char* ip = this->GetIPString();
/* Special case for 4in6 (Have i mentioned i HATE 4in6?) */
if (!strncmp(ip, "0::ffff:", 8))
res_reverse = new UserResolver(this->ServerInstance, this, ip + 8, DNS_QUERY_PTR4, cached);
else
res_reverse = new UserResolver(this->ServerInstance, this, ip, this->GetProtocolFamily() == AF_INET ? DNS_QUERY_PTR4 : DNS_QUERY_PTR6, cached);
this->ServerInstance->AddResolver(res_reverse, cached);
}
catch (CoreException& e)
{
ServerInstance->Log(DEBUG,"Error in resolver: %s",e.GetReason());
}
}
UserResolver::UserResolver(InspIRCd* Instance, userrec* user, std::string to_resolve, QueryType qt, bool &cache) :
Resolver(Instance, to_resolve, qt, cache), bound_user(user)
{
this->fwd = (qt == DNS_QUERY_A || qt == DNS_QUERY_AAAA);
this->bound_fd = user->GetFd();
}
void UserResolver::OnLookupComplete(const std::string &result, unsigned int ttl, bool cached)
{
if ((!this->fwd) && (ServerInstance->SE->GetRef(this->bound_fd) == this->bound_user))
{
this->bound_user->stored_host = result;
try
{
/* Check we didnt time out */
if (this->bound_user->registered != REG_ALL)
{
bool cached;
#ifdef IPV6
if (this->bound_user->GetProtocolFamily() == AF_INET6)
{
/* IPV6 forward lookup (with possibility of 4in6) */
const char* ip = this->bound_user->GetIPString();
bound_user->res_forward = new UserResolver(this->ServerInstance, this->bound_user, result, (!strncmp(ip, "0::ffff:", 8) ? DNS_QUERY_A : DNS_QUERY_AAAA), cached);
}
else
/* IPV4 lookup (mixed protocol mode) */
#endif
/* IPV4 lookup (ipv4 only mode) */
bound_user->res_forward = new UserResolver(this->ServerInstance, this->bound_user, result, DNS_QUERY_A, cached);
this->ServerInstance->AddResolver(bound_user->res_forward, cached);
}
}
catch (CoreException& e)
{
ServerInstance->Log(DEBUG,"Error in resolver: %s",e.GetReason());
}
}
else if ((this->fwd) && (ServerInstance->SE->GetRef(this->bound_fd) == this->bound_user))
{
/* Both lookups completed */
std::string result2("0::ffff:");
result2.append(result);
if (this->bound_user->GetIPString() == result || this->bound_user->GetIPString() == result2)
{
std::string hostname = this->bound_user->stored_host;
if (hostname.length() < 65)
{
/* Check we didnt time out */
if ((this->bound_user->registered != REG_ALL) && (!this->bound_user->dns_done))
{
/* Hostnames starting with : are not a good thing (tm) */
if (*(hostname.c_str()) == ':')
hostname.insert(0, "0");
this->bound_user->WriteServ("NOTICE Auth :*** Found your hostname (%s)%s", hostname.c_str(), (cached ? " -- cached" : ""));
this->bound_user->dns_done = true;
strlcpy(this->bound_user->dhost, hostname.c_str(),64);
strlcpy(this->bound_user->host, hostname.c_str(),64);
/* Invalidate cache */
this->bound_user->InvalidateCache();
}
}
else
{
if (!this->bound_user->dns_done)
{
this->bound_user->WriteServ("NOTICE Auth :*** Your hostname is longer than the maximum of 64 characters, using your IP address (%s) instead.", this->bound_user->GetIPString());
this->bound_user->dns_done = true;
}
}
}
else
{
if (!this->bound_user->dns_done)
{
this->bound_user->WriteServ("NOTICE Auth :*** Your hostname does not match up with your IP address. Sorry, using your IP address (%s) instead.", this->bound_user->GetIPString());
this->bound_user->dns_done = true;
}
}
}
}
void UserResolver::OnError(ResolverError e, const std::string &errormessage)
{
if (ServerInstance->SE->GetRef(this->bound_fd) == this->bound_user)
{
/* Since dns timeout is implemented outside of the resolver, this was a race condition that could result in this message being sent *after*
* the user was fully connected. This check fixes that issue - Special */
if (!this->bound_user->dns_done)
{
/* Error message here */
this->bound_user->WriteServ("NOTICE Auth :*** Could not resolve your hostname: %s; using your IP address (%s) instead.", errormessage.c_str(), this->bound_user->GetIPString());
this->bound_user->dns_done = true;
}
}
}
bool userrec::IsNoticeMaskSet(unsigned char sm)
{
return (snomasks[sm-65]);
}
void userrec::SetNoticeMask(unsigned char sm, bool value)
{
snomasks[sm-65] = value;
}
const char* userrec::FormatNoticeMasks()
{
static char data[MAXBUF];
int offset = 0;
for (int n = 0; n < 64; n++)
{
if (snomasks[n])
data[offset++] = n+65;
}
data[offset] = 0;
return data;
}
bool userrec::IsModeSet(unsigned char m)
{
return (modes[m-65]);
}
void userrec::SetMode(unsigned char m, bool value)
{
modes[m-65] = value;
}
const char* userrec::FormatModes()
{
static char data[MAXBUF];
int offset = 0;
for (int n = 0; n < 64; n++)
{
if (modes[n])
data[offset++] = n+65;
}
data[offset] = 0;
return data;
}
void userrec::DecrementModes()
{
for (int n = 0; n < 64; n++)
{
if (modes[n])
{
ModeHandler* mh = ServerInstance->Modes->FindMode(n+65, MODETYPE_USER);
if (mh)
mh->ChangeCount(-1);
}
}
}
userrec::userrec(InspIRCd* Instance) : ServerInstance(Instance)
{
// the PROPER way to do it, AVOID bzero at *ALL* costs
*password = *nick = *ident = *host = *dhost = *fullname = *awaymsg = *oper = 0;
server = (char*)Instance->FindServerNamePtr(Instance->Config->ServerName);
reset_due = ServerInstance->Time();
age = ServerInstance->Time(true);
lines_in = lastping = signon = idle_lastmsg = nping = registered = 0;
ChannelCount = timeout = flood = bytes_in = bytes_out = cmds_in = cmds_out = 0;
muted = exempt = haspassed = dns_done = false;
fd = -1;
recvq.clear();
sendq.clear();
WriteError.clear();
res_forward = res_reverse = NULL;
Visibility = NULL;
ip = NULL;
chans.clear();
invites.clear();
memset(modes,0,sizeof(modes));
memset(snomasks,0,sizeof(snomasks));
/* Invalidate cache */
operquit = cached_fullhost = cached_hostip = cached_makehost = cached_fullrealhost = NULL;
}
void userrec::RemoveCloneCounts()
{
clonemap::iterator x = ServerInstance->local_clones.find(this->GetIPString());
if (x != ServerInstance->local_clones.end())
{
x->second--;
if (!x->second)
{
ServerInstance->local_clones.erase(x);
}
}
clonemap::iterator y = ServerInstance->global_clones.find(this->GetIPString());
if (y != ServerInstance->global_clones.end())
{
y->second--;
if (!y->second)
{
ServerInstance->global_clones.erase(y);
}
}
}
userrec::~userrec()
{
this->InvalidateCache();
this->DecrementModes();
if (operquit)
free(operquit);
if (ip)
{
this->RemoveCloneCounts();
if (this->GetProtocolFamily() == AF_INET)
{
delete (sockaddr_in*)ip;
}
#ifdef SUPPORT_IP6LINKS
else
{
delete (sockaddr_in6*)ip;
}
#endif
}
}
char* userrec::MakeHost()
{
if (this->cached_makehost)
return this->cached_makehost;
char nhost[MAXBUF];
/* This is much faster than snprintf */
char* t = nhost;
for(char* n = ident; *n; n++)
*t++ = *n;
*t++ = '@';
for(char* n = host; *n; n++)
*t++ = *n;
*t = 0;
this->cached_makehost = strdup(nhost);
return this->cached_makehost;
}
char* userrec::MakeHostIP()
{
if (this->cached_hostip)
return this->cached_hostip;
char ihost[MAXBUF];
/* This is much faster than snprintf */
char* t = ihost;
for(char* n = ident; *n; n++)
*t++ = *n;
*t++ = '@';
for(const char* n = this->GetIPString(); *n; n++)
*t++ = *n;
*t = 0;
this->cached_hostip = strdup(ihost);
return this->cached_hostip;
}
void userrec::CloseSocket()
{
shutdown(this->fd,2);
close(this->fd);
}
char* userrec::GetFullHost()
{
if (this->cached_fullhost)
return this->cached_fullhost;
char result[MAXBUF];
char* t = result;
for(char* n = nick; *n; n++)
*t++ = *n;
*t++ = '!';
for(char* n = ident; *n; n++)
*t++ = *n;
*t++ = '@';
for(char* n = dhost; *n; n++)
*t++ = *n;
*t = 0;
this->cached_fullhost = strdup(result);
return this->cached_fullhost;
}
char* userrec::MakeWildHost()
{
static char nresult[MAXBUF];
char* t = nresult;
*t++ = '*'; *t++ = '!';
*t++ = '*'; *t++ = '@';
for(char* n = dhost; *n; n++)
*t++ = *n;
*t = 0;
return nresult;
}
int userrec::ReadData(void* buffer, size_t size)
{
if (IS_LOCAL(this))
{
#ifndef WIN32
return read(this->fd, buffer, size);
#else
return recv(this->fd, (char*)buffer, size, 0);
#endif
}
else
return 0;
}
char* userrec::GetFullRealHost()
{
if (this->cached_fullrealhost)
return this->cached_fullrealhost;
char fresult[MAXBUF];
char* t = fresult;
for(char* n = nick; *n; n++)
*t++ = *n;
*t++ = '!';
for(char* n = ident; *n; n++)
*t++ = *n;
*t++ = '@';
for(char* n = host; *n; n++)
*t++ = *n;
*t = 0;
this->cached_fullrealhost = strdup(fresult);
return this->cached_fullrealhost;
}
bool userrec::IsInvited(const irc::string &channel)
{
for (InvitedList::iterator i = invites.begin(); i != invites.end(); i++)
{
if (channel == *i)
{
return true;
}
}
return false;
}
InvitedList* userrec::GetInviteList()
{
return &invites;
}
void userrec::InviteTo(const irc::string &channel)
{
invites.push_back(channel);
}
void userrec::RemoveInvite(const irc::string &channel)
{
for (InvitedList::iterator i = invites.begin(); i != invites.end(); i++)
{
if (channel == *i)
{
invites.erase(i);
return;
}
}
}
bool userrec::HasPermission(const std::string &command)
{
char* mycmd;
char* savept;
char* savept2;
/*
* users on remote servers can completely bypass all permissions based checks.
* This prevents desyncs when one server has different type/class tags to another.
* That having been said, this does open things up to the possibility of source changes
* allowing remote kills, etc - but if they have access to the src, they most likely have
* access to the conf - so it's an end to a means either way.
*/
if (!IS_LOCAL(this))
return true;
// are they even an oper at all?
if (IS_OPER(this))
{
opertype_t::iterator iter_opertype = ServerInstance->Config->opertypes.find(this->oper);
if (iter_opertype != ServerInstance->Config->opertypes.end())
{
char* Classes = strdup(iter_opertype->second);
char* myclass = strtok_r(Classes," ",&savept);
while (myclass)
{
operclass_t::iterator iter_operclass = ServerInstance->Config->operclass.find(myclass);
if (iter_operclass != ServerInstance->Config->operclass.end())
{
char* CommandList = strdup(iter_operclass->second);
mycmd = strtok_r(CommandList," ",&savept2);
while (mycmd)
{
if ((!strcasecmp(mycmd,command.c_str())) || (*mycmd == '*'))
{
free(Classes);
free(CommandList);
return true;
}
mycmd = strtok_r(NULL," ",&savept2);
}
free(CommandList);
}
myclass = strtok_r(NULL," ",&savept);
}
free(Classes);
}
}
return false;
}
/** NOTE: We cannot pass a const reference to this method.
* The string is changed by the workings of the method,
* so that if we pass const ref, we end up copying it to
* something we can change anyway. Makes sense to just let
* the compiler do that copy for us.
*/
bool userrec::AddBuffer(std::string a)
{
try
{
std::string::size_type i = a.rfind('\r');
while (i != std::string::npos)
{
a.erase(i, 1);
i = a.rfind('\r');
}
if (a.length())
recvq.append(a);
if (recvq.length() > (unsigned)this->recvqmax)
{
this->SetWriteError("RecvQ exceeded");
ServerInstance->WriteOpers("*** User %s RecvQ of %d exceeds connect class maximum of %d",this->nick,recvq.length(),this->recvqmax);
return false;
}
return true;
}
catch (...)
{
ServerInstance->Log(DEBUG,"Exception in userrec::AddBuffer()");
return false;
}
}
bool userrec::BufferIsReady()
{
return (recvq.find('\n') != std::string::npos);
}
void userrec::ClearBuffer()
{
recvq.clear();
}
std::string userrec::GetBuffer()
{
try
{
if (!recvq.length())
return "";
/* Strip any leading \r or \n off the string.
* Usually there are only one or two of these,
* so its is computationally cheap to do.
*/
std::string::iterator t = recvq.begin();
while (t != recvq.end() && (*t == '\r' || *t == '\n'))
{
recvq.erase(t);
t = recvq.begin();
}
for (std::string::iterator x = recvq.begin(); x != recvq.end(); x++)
{
/* Find the first complete line, return it as the
* result, and leave the recvq as whats left
*/
if (*x == '\n')
{
std::string ret = std::string(recvq.begin(), x);
recvq.erase(recvq.begin(), x + 1);
return ret;
}
}
return "";
}
catch (...)
{
ServerInstance->Log(DEBUG,"Exception in userrec::GetBuffer()");
return "";
}
}
void userrec::AddWriteBuf(const std::string &data)
{
if (*this->GetWriteError())
return;
if (sendq.length() + data.length() > (unsigned)this->sendqmax)
{
/*
* Fix by brain - Set the error text BEFORE calling writeopers, because
* if we dont it'll recursively call here over and over again trying
* to repeatedly add the text to the sendq!
*/
this->SetWriteError("SendQ exceeded");
ServerInstance->WriteOpers("*** User %s SendQ of %d exceeds connect class maximum of %d",this->nick,sendq.length() + data.length(),this->sendqmax);
return;
}
try
{
if (data.length() > MAXBUF - 2) /* MAXBUF has a value of 514, to account for line terminators */
sendq.append(data.substr(0,MAXBUF - 4)).append("\r\n"); /* MAXBUF-4 = 510 */
else
sendq.append(data);
}
catch (...)
{
this->SetWriteError("SendQ exceeded");
ServerInstance->WriteOpers("*** User %s SendQ got an exception",this->nick);
}
}
// send AS MUCH OF THE USERS SENDQ as we are able to (might not be all of it)
void userrec::FlushWriteBuf()
{
try
{
if ((this->fd == FD_MAGIC_NUMBER) || (*this->GetWriteError()))
{
sendq.clear();
}
if ((sendq.length()) && (this->fd != FD_MAGIC_NUMBER))
{
int old_sendq_length = sendq.length();
#ifndef WIN32
int n_sent = write(this->fd, this->sendq.data(), this->sendq.length());
#else
int n_sent = send(this->fd, (const char*)this->sendq.data(), this->sendq.length(), 0);
#endif
if (n_sent == -1)
{
if (errno == EAGAIN)
{
/* The socket buffer is full. This isnt fatal,
* try again later.
*/
this->ServerInstance->SE->WantWrite(this);
}
else
{
/* Fatal error, set write error and bail
*/
this->SetWriteError(strerror(errno));
return;
}
}
else
{
/* advance the queue */
if (n_sent)
this->sendq = this->sendq.substr(n_sent);
/* update the user's stats counters */
this->bytes_out += n_sent;
this->cmds_out++;
if (n_sent != old_sendq_length)
this->ServerInstance->SE->WantWrite(this);
}
}
}
catch (...)
{
ServerInstance->Log(DEBUG,"Exception in userrec::FlushWriteBuf()");
}
if (this->sendq.empty())
{
FOREACH_MOD(I_OnBufferFlushed,OnBufferFlushed(this));
}
}
void userrec::SetWriteError(const std::string &error)
{
try
{
// don't try to set the error twice, its already set take the first string.
if (this->WriteError.empty())
this->WriteError = error;
}
catch (...)
{
ServerInstance->Log(DEBUG,"Exception in userrec::SetWriteError()");
}
}
const char* userrec::GetWriteError()
{
return this->WriteError.c_str();
}
void userrec::Oper(const std::string &opertype)
{
try
{
this->modes[UM_OPERATOR] = 1;
this->WriteServ("MODE %s :+o", this->nick);
FOREACH_MOD(I_OnOper, OnOper(this, opertype));
ServerInstance->Log(DEFAULT,"OPER: %s!%s@%s opered as type: %s", this->nick, this->ident, this->host, opertype.c_str());
strlcpy(this->oper, opertype.c_str(), NICKMAX - 1);
ServerInstance->all_opers.push_back(this);
FOREACH_MOD(I_OnPostOper,OnPostOper(this, opertype));
}
catch (...)
{
ServerInstance->Log(DEBUG,"Exception in userrec::Oper()");
}
}
void userrec::UnOper()
{
try
{
if (IS_OPER(this))
{
// unset their oper type (what IS_OPER checks), and remove +o
*this->oper = 0;
this->modes[UM_OPERATOR] = 0;
// remove them from the opers list.
for (std::vector<userrec*>::iterator a = ServerInstance->all_opers.begin(); a < ServerInstance->all_opers.end(); a++)
{
if (*a == this)
{
ServerInstance->all_opers.erase(a);
return;
}
}
}
}
catch (...)
{
ServerInstance->Log(DEBUG,"Exception in userrec::UnOper()");
}
}
void userrec::QuitUser(InspIRCd* Instance, userrec *user, const std::string &quitreason, const char* operreason)
{
user->muted = true;
Instance->GlobalCulls.AddItem(user, quitreason.c_str(), operreason);
}
/* adds or updates an entry in the whowas list */
void userrec::AddToWhoWas()
{
command_t* whowas_command = ServerInstance->Parser->GetHandler("WHOWAS");
if (whowas_command)
{
std::deque<classbase*> params;
params.push_back(this);
whowas_command->HandleInternal(WHOWAS_ADD, params);
}
}
/* add a client connection to the sockets list */
void userrec::AddClient(InspIRCd* Instance, int socket, int port, bool iscached, int socketfamily, sockaddr* ip)
{
std::string tempnick = ConvToStr(socket) + "-unknown";
user_hash::iterator iter = Instance->clientlist->find(tempnick);
char ipaddr[MAXBUF];
#ifdef IPV6
if (socketfamily == AF_INET6)
inet_ntop(AF_INET6, &((const sockaddr_in6*)ip)->sin6_addr, ipaddr, sizeof(ipaddr));
else
#endif
inet_ntop(AF_INET, &((const sockaddr_in*)ip)->sin_addr, ipaddr, sizeof(ipaddr));
userrec* New;
int j = 0;
Instance->unregistered_count++;
/*
* fix by brain.
* as these nicknames are 'RFC impossible', we can be sure nobody is going to be
* using one as a registered connection. As they are per fd, we can also safely assume
* that we wont have collisions. Therefore, if the nick exists in the list, its only
* used by a dead socket, erase the iterator so that the new client may reclaim it.
* this was probably the cause of 'server ignores me when i hammer it with reconnects'
* issue in earlier alphas/betas
*/
if (iter != Instance->clientlist->end())
{
userrec* goner = iter->second;
DELETE(goner);
Instance->clientlist->erase(iter);
}
New = new userrec(Instance);
(*(Instance->clientlist))[tempnick] = New;
New->fd = socket;
strlcpy(New->nick,tempnick.c_str(),NICKMAX-1);
New->server = Instance->FindServerNamePtr(Instance->Config->ServerName);
/* We don't need range checking here, we KNOW 'unknown\0' will fit into the ident field. */
strcpy(New->ident, "unknown");
New->registered = REG_NONE;
New->signon = Instance->Time() + Instance->Config->dns_timeout;
New->lastping = 1;
New->SetSockAddr(socketfamily, ipaddr, port);
/* Smarter than your average bear^H^H^H^Hset of strlcpys. */
for (const char* temp = New->GetIPString(); *temp && j < 64; temp++, j++)
New->dhost[j] = New->host[j] = *temp;
New->dhost[j] = New->host[j] = 0;
Instance->AddLocalClone(New);
Instance->AddGlobalClone(New);
/*
* First class check. We do this again in FullConnect after DNS is done, and NICK/USER is recieved.
* See my note down there for why this is required. DO NOT REMOVE. :) -- w00t
*/
ConnectClass* i = New->GetClass();
if (!i)
{
userrec::QuitUser(Instance, New, "Access denied by configuration");
return;
}
New->CheckClass();
New->pingmax = i->GetPingTime();
New->nping = Instance->Time() + i->GetPingTime() + Instance->Config->dns_timeout;
New->timeout = Instance->Time() + i->GetRegTimeout();
New->flood = i->GetFlood();
New->threshold = i->GetThreshold();
New->sendqmax = i->GetSendqMax();
New->recvqmax = i->GetRecvqMax();
Instance->local_users.push_back(New);
if ((Instance->local_users.size() > Instance->Config->SoftLimit) || (Instance->local_users.size() >= MAXCLIENTS))
{
Instance->WriteOpers("*** Warning: softlimit value has been reached: %d clients", Instance->Config->SoftLimit);
userrec::QuitUser(Instance, New,"No more connections allowed");
return;
}
/*
* XXX -
* this is done as a safety check to keep the file descriptors within range of fd_ref_table.
* its a pretty big but for the moment valid assumption:
* file descriptors are handed out starting at 0, and are recycled as theyre freed.
* therefore if there is ever an fd over 65535, 65536 clients must be connected to the
* irc server at once (or the irc server otherwise initiating this many connections, files etc)
* which for the time being is a physical impossibility (even the largest networks dont have more
* than about 10,000 users on ONE server!)
*/
#ifndef WINDOWS
if ((unsigned int)socket >= MAX_DESCRIPTORS)
{
userrec::QuitUser(Instance, New, "Server is full");
return;
}
#endif
New->exempt = (Instance->XLines->matches_exception(New) != NULL);
if (!New->exempt)
{
ZLine* r = Instance->XLines->matches_zline(ipaddr);
if (r)
{
char reason[MAXBUF];
if (*Instance->Config->MoronBanner)
New->WriteServ("NOTICE %s :*** %s", New->nick, Instance->Config->MoronBanner);
snprintf(reason,MAXBUF,"Z-Lined: %s",r->reason);
userrec::QuitUser(Instance, New, reason);
return;
}
}
if (socket > -1)
{
if (!Instance->SE->AddFd(New))
{
userrec::QuitUser(Instance, New, "Internal error handling connection");
return;
}
}
/* NOTE: even if dns lookups are *off*, we still need to display this.
* BOPM and other stuff requires it.
*/
New->WriteServ("NOTICE Auth :*** Looking up your hostname...");
}
unsigned long userrec::GlobalCloneCount()
{
clonemap::iterator x = ServerInstance->global_clones.find(this->GetIPString());
if (x != ServerInstance->global_clones.end())
return x->second;
else
return 0;
}
unsigned long userrec::LocalCloneCount()
{
clonemap::iterator x = ServerInstance->local_clones.find(this->GetIPString());
if (x != ServerInstance->local_clones.end())
return x->second;
else
return 0;
}
/*
* Check class restrictions
*/
void userrec::CheckClass()
{
ConnectClass* a = this->GetClass();
if ((!a) || (a->GetType() == CC_DENY))
{
userrec::QuitUser(ServerInstance, this, "Unauthorised connection");
return;
}
else if ((a->GetMaxLocal()) && (this->LocalCloneCount() > a->GetMaxLocal()))
{
userrec::QuitUser(ServerInstance, this, "No more connections allowed from your host via this connect class (local)");
ServerInstance->WriteOpers("*** WARNING: maximum LOCAL connections (%ld) exceeded for IP %s", a->GetMaxLocal(), this->GetIPString());
return;
}
else if ((a->GetMaxGlobal()) && (this->GlobalCloneCount() > a->GetMaxGlobal()))
{
userrec::QuitUser(ServerInstance, this, "No more connections allowed from your host via this connect class (global)");
ServerInstance->WriteOpers("*** WARNING: maximum GLOBAL connections (%ld) exceeded for IP %s", a->GetMaxGlobal(), this->GetIPString());
return;
}
}
void userrec::FullConnect()
{
ServerInstance->stats->statsConnects++;
this->idle_lastmsg = ServerInstance->Time();
/*
* You may be thinking "wtf, we checked this in userrec::AddClient!" - and yes, we did, BUT.
* At the time AddClient is called, we don't have a resolved host, by here we probably do - which
* may put the user into a totally seperate class with different restrictions! so we *must* check again.
* Don't remove this! -- w00t
*/
this->CheckClass();
/* Check the password, if one is required by the user's connect class.
* This CANNOT be in CheckClass(), because that is called prior to PASS as well!
*/
if ((!this->GetClass()->GetPass().empty()) && (!this->haspassed))
{
userrec::QuitUser(ServerInstance, this, "Invalid password");
return;
}
if (!this->exempt)
{
GLine* r = ServerInstance->XLines->matches_gline(this);
if (r)
{
this->muted = true;
char reason[MAXBUF];
if (*ServerInstance->Config->MoronBanner)
this->WriteServ("NOTICE %s :*** %s", this->nick, ServerInstance->Config->MoronBanner);
snprintf(reason,MAXBUF,"G-Lined: %s",r->reason);
ServerInstance->GlobalCulls.AddItem(this, reason);
return;
}
KLine* n = ServerInstance->XLines->matches_kline(this);
if (n)
{
this->muted = true;
char reason[MAXBUF];
if (*ServerInstance->Config->MoronBanner)
this->WriteServ("NOTICE %s :*** %s", this, ServerInstance->Config->MoronBanner);
snprintf(reason,MAXBUF,"K-Lined: %s",n->reason);
ServerInstance->GlobalCulls.AddItem(this, reason);
return;
}
}
this->WriteServ("NOTICE Auth :Welcome to \002%s\002!",ServerInstance->Config->Network);
this->WriteServ("001 %s :Welcome to the %s IRC Network %s!%s@%s",this->nick, ServerInstance->Config->Network, this->nick, this->ident, this->host);
this->WriteServ("002 %s :Your host is %s, running version %s",this->nick,ServerInstance->Config->ServerName,VERSION);
this->WriteServ("003 %s :This server was created %s %s", this->nick, __TIME__, __DATE__);
this->WriteServ("004 %s %s %s %s %s %s", this->nick, ServerInstance->Config->ServerName, VERSION, ServerInstance->Modes->UserModeList().c_str(), ServerInstance->Modes->ChannelModeList().c_str(), ServerInstance->Modes->ParaModeList().c_str());
ServerInstance->Config->Send005(this);
this->ShowMOTD();
/* Now registered */
if (ServerInstance->unregistered_count)
ServerInstance->unregistered_count--;
/* Trigger LUSERS output, give modules a chance too */
int MOD_RESULT = 0;
FOREACH_RESULT(I_OnPreCommand, OnPreCommand("LUSERS", NULL, 0, this, true, "LUSERS"));
if (!MOD_RESULT)
ServerInstance->CallCommandHandler("LUSERS", NULL, 0, this);
/*
* fix 3 by brain, move registered = 7 below these so that spurious modes and host
* changes dont go out onto the network and produce 'fake direction'.
*/
FOREACH_MOD(I_OnUserConnect,OnUserConnect(this));
this->registered = REG_ALL;
FOREACH_MOD(I_OnPostConnect,OnPostConnect(this));
ServerInstance->SNO->WriteToSnoMask('c',"Client connecting on port %d: %s!%s@%s [%s] [%s]", this->GetPort(), this->nick, this->ident, this->host, this->GetIPString(), this->fullname);
}
/** userrec::UpdateNick()
* re-allocates a nick in the user_hash after they change nicknames,
* returns a pointer to the new user as it may have moved
*/
userrec* userrec::UpdateNickHash(const char* New)
{
try
{
//user_hash::iterator newnick;
user_hash::iterator oldnick = ServerInstance->clientlist->find(this->nick);
if (!strcasecmp(this->nick,New))
return oldnick->second;
if (oldnick == ServerInstance->clientlist->end())
return NULL; /* doesnt exist */
userrec* olduser = oldnick->second;
(*(ServerInstance->clientlist))[New] = olduser;
ServerInstance->clientlist->erase(oldnick);
return olduser;
}
catch (...)
{
ServerInstance->Log(DEBUG,"Exception in userrec::UpdateNickHash()");
return NULL;
}
}
void userrec::InvalidateCache()
{
/* Invalidate cache */
if (cached_fullhost)
free(cached_fullhost);
if (cached_hostip)
free(cached_hostip);
if (cached_makehost)
free(cached_makehost);
if (cached_fullrealhost)
free(cached_fullrealhost);
cached_fullhost = cached_hostip = cached_makehost = cached_fullrealhost = NULL;
}
bool userrec::ForceNickChange(const char* newnick)
{
try
{
int MOD_RESULT = 0;
this->InvalidateCache();
FOREACH_RESULT(I_OnUserPreNick,OnUserPreNick(this, newnick));
if (MOD_RESULT)
{
ServerInstance->stats->statsCollisions++;
return false;
}
if (ServerInstance->XLines->matches_qline(newnick))
{
ServerInstance->stats->statsCollisions++;
return false;
}
if (this->registered == REG_ALL)
{
return (ServerInstance->Parser->CallHandler("NICK", &newnick, 1, this) == CMD_SUCCESS);
}
return false;
}
catch (...)
{
ServerInstance->Log(DEBUG,"Exception in userrec::ForceNickChange()");
return false;
}
}
void userrec::SetSockAddr(int protocol_family, const char* ip, int port)
{
switch (protocol_family)
{
#ifdef SUPPORT_IP6LINKS
case AF_INET6:
{
sockaddr_in6* sin = new sockaddr_in6;
sin->sin6_family = AF_INET6;
sin->sin6_port = port;
inet_pton(AF_INET6, ip, &sin->sin6_addr);
this->ip = (sockaddr*)sin;
}
break;
#endif
case AF_INET:
{
sockaddr_in* sin = new sockaddr_in;
sin->sin_family = AF_INET;
sin->sin_port = port;
inet_pton(AF_INET, ip, &sin->sin_addr);
this->ip = (sockaddr*)sin;
}
break;
default:
ServerInstance->Log(DEBUG,"Ut oh, I dont know protocol %d to be set on '%s'!", protocol_family, this->nick);
break;
}
}
int userrec::GetPort()
{
if (this->ip == NULL)
return 0;
switch (this->GetProtocolFamily())
{
#ifdef SUPPORT_IP6LINKS
case AF_INET6:
{
sockaddr_in6* sin = (sockaddr_in6*)this->ip;
return sin->sin6_port;
}
break;
#endif
case AF_INET:
{
sockaddr_in* sin = (sockaddr_in*)this->ip;
return sin->sin_port;
}
break;
default:
break;
}
return 0;
}
int userrec::GetProtocolFamily()
{
if (this->ip == NULL)
return 0;
sockaddr_in* sin = (sockaddr_in*)this->ip;
return sin->sin_family;
}
const char* userrec::GetIPString()
{
static char buf[1024];
if (this->ip == NULL)
return "";
switch (this->GetProtocolFamily())
{
#ifdef SUPPORT_IP6LINKS
case AF_INET6:
{
static char temp[1024];
sockaddr_in6* sin = (sockaddr_in6*)this->ip;
inet_ntop(sin->sin6_family, &sin->sin6_addr, buf, sizeof(buf));
/* IP addresses starting with a : on irc are a Bad Thing (tm) */
if (*buf == ':')
{
strlcpy(&temp[1], buf, sizeof(temp) - 1);
*temp = '0';
return temp;
}
return buf;
}
break;
#endif
case AF_INET:
{
sockaddr_in* sin = (sockaddr_in*)this->ip;
inet_ntop(sin->sin_family, &sin->sin_addr, buf, sizeof(buf));
return buf;
}
break;
default:
break;
}
return "";
}
const char* userrec::GetIPString(char* buf)
{
if (this->ip == NULL)
{
*buf = 0;
return buf;
}
switch (this->GetProtocolFamily())
{
#ifdef SUPPORT_IP6LINKS
case AF_INET6:
{
static char temp[1024];
sockaddr_in6* sin = (sockaddr_in6*)this->ip;
inet_ntop(sin->sin6_family, &sin->sin6_addr, buf, sizeof(buf));
/* IP addresses starting with a : on irc are a Bad Thing (tm) */
if (*buf == ':')
{
strlcpy(&temp[1], buf, sizeof(temp) - 1);
*temp = '0';
strlcpy(buf, temp, sizeof(temp));
}
return buf;
}
break;
#endif
case AF_INET:
{
sockaddr_in* sin = (sockaddr_in*)this->ip;
inet_ntop(sin->sin_family, &sin->sin_addr, buf, sizeof(buf));
return buf;
}
break;
default:
break;
}
return "";
}
/** NOTE: We cannot pass a const reference to this method.
* The string is changed by the workings of the method,
* so that if we pass const ref, we end up copying it to
* something we can change anyway. Makes sense to just let
* the compiler do that copy for us.
*/
void userrec::Write(std::string text)
{
#ifdef WINDOWS
if ((this->fd < 0) || (this->m_internalFd > MAX_DESCRIPTORS))
#else
if ((this->fd < 0) || (this->fd > MAX_DESCRIPTORS))
#endif
return;
try
{
/* ServerInstance->Log(DEBUG,"C[%d] <- %s", this->GetFd(), text.c_str());
* WARNING: The above debug line is VERY loud, do NOT
* enable it till we have a good way of filtering it
* out of the logs (e.g. 1.2 would be good).
*/
text.append("\r\n");
}
catch (...)
{
ServerInstance->Log(DEBUG,"Exception in userrec::Write() std::string::append");
return;
}
if (ServerInstance->Config->GetIOHook(this->GetPort()))
{
try
{
/* XXX: The lack of buffering here is NOT a bug, modules implementing this interface have to
* implement their own buffering mechanisms
*/
ServerInstance->Config->GetIOHook(this->GetPort())->OnRawSocketWrite(this->fd, text.data(), text.length());
}
catch (CoreException& modexcept)
{
ServerInstance->Log(DEBUG, "%s threw an exception: %s", modexcept.GetSource(), modexcept.GetReason());
}
}
else
{
this->AddWriteBuf(text);
}
ServerInstance->stats->statsSent += text.length();
this->ServerInstance->SE->WantWrite(this);
}
/** Write()
*/
void userrec::Write(const char *text, ...)
{
va_list argsPtr;
char textbuffer[MAXBUF];
va_start(argsPtr, text);
vsnprintf(textbuffer, MAXBUF, text, argsPtr);
va_end(argsPtr);
this->Write(std::string(textbuffer));
}
void userrec::WriteServ(const std::string& text)
{
char textbuffer[MAXBUF];
snprintf(textbuffer,MAXBUF,":%s %s",ServerInstance->Config->ServerName,text.c_str());
this->Write(std::string(textbuffer));
}
/** WriteServ()
* Same as Write(), except `text' is prefixed with `:server.name '.
*/
void userrec::WriteServ(const char* text, ...)
{
va_list argsPtr;
char textbuffer[MAXBUF];
va_start(argsPtr, text);
vsnprintf(textbuffer, MAXBUF, text, argsPtr);
va_end(argsPtr);
this->WriteServ(std::string(textbuffer));
}
void userrec::WriteFrom(userrec *user, const std::string &text)
{
char tb[MAXBUF];
snprintf(tb,MAXBUF,":%s %s",user->GetFullHost(),text.c_str());
this->Write(std::string(tb));
}
/* write text from an originating user to originating user */
void userrec::WriteFrom(userrec *user, const char* text, ...)
{
va_list argsPtr;
char textbuffer[MAXBUF];
va_start(argsPtr, text);
vsnprintf(textbuffer, MAXBUF, text, argsPtr);
va_end(argsPtr);
this->WriteFrom(user, std::string(textbuffer));
}
/* write text to an destination user from a source user (e.g. user privmsg) */
void userrec::WriteTo(userrec *dest, const char *data, ...)
{
char textbuffer[MAXBUF];
va_list argsPtr;
va_start(argsPtr, data);
vsnprintf(textbuffer, MAXBUF, data, argsPtr);
va_end(argsPtr);
this->WriteTo(dest, std::string(textbuffer));
}
void userrec::WriteTo(userrec *dest, const std::string &data)
{
dest->WriteFrom(this, data);
}
void userrec::WriteCommon(const char* text, ...)
{
char textbuffer[MAXBUF];
va_list argsPtr;
if (this->registered != REG_ALL)
return;
va_start(argsPtr, text);
vsnprintf(textbuffer, MAXBUF, text, argsPtr);
va_end(argsPtr);
this->WriteCommon(std::string(textbuffer));
}
void userrec::WriteCommon(const std::string &text)
{
try
{
bool sent_to_at_least_one = false;
char tb[MAXBUF];
if (this->registered != REG_ALL)
return;
uniq_id++;
/* We dont want to be doing this n times, just once */
snprintf(tb,MAXBUF,":%s %s",this->GetFullHost(),text.c_str());
std::string out = tb;
for (UCListIter v = this->chans.begin(); v != this->chans.end(); v++)
{
CUList* ulist = v->first->GetUsers();
for (CUList::iterator i = ulist->begin(); i != ulist->end(); i++)
{
if ((IS_LOCAL(i->first)) && (already_sent[i->first->fd] != uniq_id))
{
already_sent[i->first->fd] = uniq_id;
i->first->Write(out);
sent_to_at_least_one = true;
}
}
}
/*
* if the user was not in any channels, no users will receive the text. Make sure the user
* receives their OWN message for WriteCommon
*/
if (!sent_to_at_least_one)
{
this->Write(std::string(tb));
}
}
catch (...)
{
ServerInstance->Log(DEBUG,"Exception in userrec::WriteCommon()");
}
}
/* write a formatted string to all users who share at least one common
* channel, NOT including the source user e.g. for use in QUIT
*/
void userrec::WriteCommonExcept(const char* text, ...)
{
char textbuffer[MAXBUF];
va_list argsPtr;
va_start(argsPtr, text);
vsnprintf(textbuffer, MAXBUF, text, argsPtr);
va_end(argsPtr);
this->WriteCommonExcept(std::string(textbuffer));
}
void userrec::WriteCommonQuit(const std::string &normal_text, const std::string &oper_text)
{
char tb1[MAXBUF];
char tb2[MAXBUF];
if (this->registered != REG_ALL)
return;
uniq_id++;
snprintf(tb1,MAXBUF,":%s QUIT :%s",this->GetFullHost(),normal_text.c_str());
snprintf(tb2,MAXBUF,":%s QUIT :%s",this->GetFullHost(),oper_text.c_str());
std::string out1 = tb1;
std::string out2 = tb2;
for (UCListIter v = this->chans.begin(); v != this->chans.end(); v++)
{
CUList *ulist = v->first->GetUsers();
for (CUList::iterator i = ulist->begin(); i != ulist->end(); i++)
{
if (this != i->first)
{
if ((IS_LOCAL(i->first)) && (already_sent[i->first->fd] != uniq_id))
{
already_sent[i->first->fd] = uniq_id;
i->first->Write(IS_OPER(i->first) ? out2 : out1);
}
}
}
}
}
void userrec::WriteCommonExcept(const std::string &text)
{
char tb1[MAXBUF];
std::string out1;
if (this->registered != REG_ALL)
return;
uniq_id++;
snprintf(tb1,MAXBUF,":%s %s",this->GetFullHost(),text.c_str());
out1 = tb1;
for (UCListIter v = this->chans.begin(); v != this->chans.end(); v++)
{
CUList *ulist = v->first->GetUsers();
for (CUList::iterator i = ulist->begin(); i != ulist->end(); i++)
{
if (this != i->first)
{
if ((IS_LOCAL(i->first)) && (already_sent[i->first->fd] != uniq_id))
{
already_sent[i->first->fd] = uniq_id;
i->first->Write(out1);
}
}
}
}
}
void userrec::WriteWallOps(const std::string &text)
{
if (!IS_OPER(this) && IS_LOCAL(this))
return;
std::string wallop("WALLOPS :");
wallop.append(text);
for (std::vector<userrec*>::const_iterator i = ServerInstance->local_users.begin(); i != ServerInstance->local_users.end(); i++)
{
userrec* t = *i;
if (t->modes[UM_WALLOPS])
this->WriteTo(t,wallop);
}
}
void userrec::WriteWallOps(const char* text, ...)
{
char textbuffer[MAXBUF];
va_list argsPtr;
va_start(argsPtr, text);
vsnprintf(textbuffer, MAXBUF, text, argsPtr);
va_end(argsPtr);
this->WriteWallOps(std::string(textbuffer));
}
/* return 0 or 1 depending if users u and u2 share one or more common channels
* (used by QUIT, NICK etc which arent channel specific notices)
*
* The old algorithm in 1.0 for this was relatively inefficient, iterating over
* the first users channels then the second users channels within the outer loop,
* therefore it was a maximum of x*y iterations (upon returning 0 and checking
* all possible iterations). However this new function instead checks against the
* channel's userlist in the inner loop which is a std::map<userrec*,userrec*>
* and saves us time as we already know what pointer value we are after.
* Don't quote me on the maths as i am not a mathematician or computer scientist,
* but i believe this algorithm is now x+(log y) maximum iterations instead.
*/
bool userrec::SharesChannelWith(userrec *other)
{
if ((!other) || (this->registered != REG_ALL) || (other->registered != REG_ALL))
return false;
/* Outer loop */
for (UCListIter i = this->chans.begin(); i != this->chans.end(); i++)
{
/* Eliminate the inner loop (which used to be ~equal in size to the outer loop)
* by replacing it with a map::find which *should* be more efficient
*/
if (i->first->HasUser(other))
return true;
}
return false;
}
bool userrec::ChangeName(const char* gecos)
{
if (!strcmp(gecos, this->fullname))
return true;
if (IS_LOCAL(this))
{
int MOD_RESULT = 0;
FOREACH_RESULT(I_OnChangeLocalUserGECOS,OnChangeLocalUserGECOS(this,gecos));
if (MOD_RESULT)
return false;
FOREACH_MOD(I_OnChangeName,OnChangeName(this,gecos));
}
strlcpy(this->fullname,gecos,MAXGECOS+1);
return true;
}
bool userrec::ChangeDisplayedHost(const char* host)
{
if (!strcmp(host, this->dhost))
return true;
if (IS_LOCAL(this))
{
int MOD_RESULT = 0;
FOREACH_RESULT(I_OnChangeLocalUserHost,OnChangeLocalUserHost(this,host));
if (MOD_RESULT)
return false;
FOREACH_MOD(I_OnChangeHost,OnChangeHost(this,host));
}
if (this->ServerInstance->Config->CycleHosts)
this->WriteCommonExcept("QUIT :Changing hosts");
/* Fix by Om: userrec::dhost is 65 long, this was truncating some long hosts */
strlcpy(this->dhost,host,64);
this->InvalidateCache();
if (this->ServerInstance->Config->CycleHosts)
{
for (UCListIter i = this->chans.begin(); i != this->chans.end(); i++)
{
i->first->WriteAllExceptSender(this, false, 0, "JOIN %s", i->first->name);
std::string n = this->ServerInstance->Modes->ModeString(this, i->first);
if (n.length() > 0)
i->first->WriteAllExceptSender(this, true, 0, "MODE %s +%s", i->first->name, n.c_str());
}
}
if (IS_LOCAL(this))
this->WriteServ("396 %s %s :is now your displayed host",this->nick,this->dhost);
return true;
}
bool userrec::ChangeIdent(const char* newident)
{
if (!strcmp(newident, this->ident))
return true;
if (this->ServerInstance->Config->CycleHosts)
this->WriteCommonExcept("%s","QUIT :Changing ident");
strlcpy(this->ident, newident, IDENTMAX+2);
this->InvalidateCache();
if (this->ServerInstance->Config->CycleHosts)
{
for (UCListIter i = this->chans.begin(); i != this->chans.end(); i++)
{
i->first->WriteAllExceptSender(this, false, 0, "JOIN %s", i->first->name);
std::string n = this->ServerInstance->Modes->ModeString(this, i->first);
if (n.length() > 0)
i->first->WriteAllExceptSender(this, true, 0, "MODE %s +%s", i->first->name, n.c_str());
}
}
return true;
}
void userrec::SendAll(const char* command, char* text, ...)
{
char textbuffer[MAXBUF];
char formatbuffer[MAXBUF];
va_list argsPtr;
va_start(argsPtr, text);
vsnprintf(textbuffer, MAXBUF, text, argsPtr);
va_end(argsPtr);
snprintf(formatbuffer,MAXBUF,":%s %s $* :%s", this->GetFullHost(), command, textbuffer);
std::string fmt = formatbuffer;
for (std::vector<userrec*>::const_iterator i = ServerInstance->local_users.begin(); i != ServerInstance->local_users.end(); i++)
{
(*i)->Write(fmt);
}
}
std::string userrec::ChannelList(userrec* source)
{
try
{
std::string list;
for (UCListIter i = this->chans.begin(); i != this->chans.end(); i++)
{
/* If the target is the same as the sender, let them see all their channels.
* If the channel is NOT private/secret OR the user shares a common channel
* If the user is an oper, and the <options:operspywhois> option is set.
*/
if ((source == this) || (IS_OPER(source) && ServerInstance->Config->OperSpyWhois) || (((!i->first->modes[CM_PRIVATE]) && (!i->first->modes[CM_SECRET])) || (i->first->HasUser(source))))
{
list.append(i->first->GetPrefixChar(this)).append(i->first->name).append(" ");
}
}
return list;
}
catch (...)
{
ServerInstance->Log(DEBUG,"Exception in userrec::ChannelList()");
return "";
}
}
void userrec::SplitChanList(userrec* dest, const std::string &cl)
{
std::string line;
std::ostringstream prefix;
std::string::size_type start, pos, length;
try
{
prefix << this->nick << " " << dest->nick << " :";
line = prefix.str();
int namelen = strlen(ServerInstance->Config->ServerName) + 6;
for (start = 0; (pos = cl.find(' ', start)) != std::string::npos; start = pos+1)
{
length = (pos == std::string::npos) ? cl.length() : pos;
if (line.length() + namelen + length - start > 510)
{
ServerInstance->SendWhoisLine(this, dest, 319, "%s", line.c_str());
line = prefix.str();
}
if(pos == std::string::npos)
{
line.append(cl.substr(start, length - start));
break;
}
else
{
line.append(cl.substr(start, length - start + 1));
}
}
if (line.length())
{
ServerInstance->SendWhoisLine(this, dest, 319, "%s", line.c_str());
}
}
catch (...)
{
ServerInstance->Log(DEBUG,"Exception in userrec::SplitChanList()");
}
}
/* looks up a users password for their connection class (<ALLOW>/<DENY> tags)
* NOTE: If the <ALLOW> or <DENY> tag specifies an ip, and this user resolves,
* then their ip will be taken as 'priority' anyway, so for example,
* <connect allow="127.0.0.1"> will match joe!bloggs@localhost
*/
ConnectClass* userrec::GetClass()
{
for (ClassVector::iterator i = ServerInstance->Config->Classes.begin(); i != ServerInstance->Config->Classes.end(); i++)
{
if (((match(this->GetIPString(),i->GetHost().c_str(),true)) || (match(this->host,i->GetHost().c_str()))))
{
if (i->GetPort())
{
if (this->GetPort() == i->GetPort())
return &(*i);
else
continue;
}
else
return &(*i);
}
}
return NULL;
}
void userrec::PurgeEmptyChannels()
{
std::vector<chanrec*> to_delete;
// firstly decrement the count on each channel
for (UCListIter f = this->chans.begin(); f != this->chans.end(); f++)
{
f->first->RemoveAllPrefixes(this);
if (f->first->DelUser(this) == 0)
{
/* No users left in here, mark it for deletion */
try
{
to_delete.push_back(f->first);
}
catch (...)
{
ServerInstance->Log(DEBUG,"Exception in userrec::PurgeEmptyChannels to_delete.push_back()");
}
}
}
for (std::vector<chanrec*>::iterator n = to_delete.begin(); n != to_delete.end(); n++)
{
chanrec* thischan = *n;
chan_hash::iterator i2 = ServerInstance->chanlist->find(thischan->name);
if (i2 != ServerInstance->chanlist->end())
{
FOREACH_MOD(I_OnChannelDelete,OnChannelDelete(i2->second));
DELETE(i2->second);
ServerInstance->chanlist->erase(i2);
this->chans.erase(*n);
}
}
this->UnOper();
}
void userrec::ShowMOTD()
{
if (!ServerInstance->Config->MOTD.size())
{
this->WriteServ("422 %s :Message of the day file is missing.",this->nick);
return;
}
this->WriteServ("375 %s :%s message of the day", this->nick, ServerInstance->Config->ServerName);
for (file_cache::iterator i = ServerInstance->Config->MOTD.begin(); i != ServerInstance->Config->MOTD.end(); i++)
this->WriteServ("372 %s :- %s",this->nick,i->c_str());
this->WriteServ("376 %s :End of message of the day.", this->nick);
}
void userrec::ShowRULES()
{
if (!ServerInstance->Config->RULES.size())
{
this->WriteServ("NOTICE %s :Rules file is missing.",this->nick);
return;
}
this->WriteServ("NOTICE %s :%s rules",this->nick,ServerInstance->Config->ServerName);
for (file_cache::iterator i = ServerInstance->Config->RULES.begin(); i != ServerInstance->Config->RULES.end(); i++)
this->WriteServ("NOTICE %s :%s",this->nick,i->c_str());
this->WriteServ("NOTICE %s :End of %s rules.",this->nick,ServerInstance->Config->ServerName);
}
void userrec::HandleEvent(EventType et, int errornum)
{
/* WARNING: May delete this user! */
int thisfd = this->GetFd();
try
{
switch (et)
{
case EVENT_READ:
ServerInstance->ProcessUser(this);
break;
case EVENT_WRITE:
this->FlushWriteBuf();
break;
case EVENT_ERROR:
/** This should be safe, but dont DARE do anything after it -- Brain */
this->SetWriteError(errornum ? strerror(errornum) : "EOF from client");
break;
}
}
catch (...)
{
ServerInstance->Log(DEBUG,"Exception in userrec::HandleEvent intercepted");
}
/* If the user has raised an error whilst being processed, quit them now we're safe to */
if ((ServerInstance->SE->GetRef(thisfd) == this))
{
if (!WriteError.empty())
{
userrec::QuitUser(ServerInstance, this, GetWriteError());
}
}
}
void userrec::SetOperQuit(const std::string &oquit)
{
if (operquit)
return;
operquit = strdup(oquit.c_str());
}
const char* userrec::GetOperQuit()
{
return operquit ? operquit : "";
}
VisData::VisData()
{
}
VisData::~VisData()
{
}
bool VisData::VisibleTo(userrec* user)
{
return true;
}
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