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/*
* InspIRCd -- Internet Relay Chat Daemon
*
* Copyright (C) 2014 Adam <Adam@anope.org>
* Copyright (C) 2009 Daniel De Graaf <danieldg@inspircd.org>
* Copyright (C) 2007-2008 Craig Edwards <craigedwards@brainbox.cc>
* Copyright (C) 2008 Robin Burchell <robin+git@viroteck.net>
*
* This file is part of InspIRCd. InspIRCd is free software: you can
* redistribute it and/or modify it under the terms of the GNU General Public
* License as published by the Free Software Foundation, version 2.
*
* This program is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
* FOR A PARTICULAR PURPOSE. See the GNU General Public License for more
* details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include "inspircd.h"
#include "main.h"
#include "utils.h"
#include "treeserver.h"
#include "commands.h"
CommandMap::CommandMap(Module* Creator)
: Command(Creator, "MAP", 0, 1)
{
Penalty = 2;
}
static inline bool IsHidden(User* user, TreeServer* server)
{
if (!user->IsOper())
{
if (server->Hidden)
return true;
if (Utils->HideULines && server->IsULine())
return true;
}
return false;
}
// Calculate the map depth the servers go, and the longest server name
static void GetDepthAndLen(TreeServer* current, unsigned int depth, unsigned int& max_depth, unsigned int& max_len)
{
if (depth > max_depth)
max_depth = depth;
if (current->GetName().length() > max_len)
max_len = current->GetName().length();
const TreeServer::ChildServers& servers = current->GetChildren();
for (TreeServer::ChildServers::const_iterator i = servers.begin(); i != servers.end(); ++i)
{
TreeServer* child = *i;
GetDepthAndLen(child, depth + 1, max_depth, max_len);
}
}
static std::vector<std::string> GetMap(User* user, TreeServer* current, unsigned int max_len, unsigned int depth)
{
float percent = 0;
const user_hash& users = ServerInstance->Users->GetUsers();
if (!users.empty())
{
// If there are no users, WHO THE HELL DID THE /MAP?!?!?!
percent = current->UserCount * 100.0 / users.size();
}
std::string buffer = current->GetName();
if (user->IsOper())
{
buffer += " (" + current->GetID() + ")";
}
// Pad with spaces until its at max len, max_len must always be >= my names length
buffer.append(max_len - current->GetName().length(), ' ');
char buf[16];
snprintf(buf, sizeof(buf), "%5d [%5.2f%%]", current->UserCount, percent);
buffer += buf;
if (user->IsOper())
{
time_t secs_up = ServerInstance->Time() - current->age;
buffer += " [Up: " + ModuleSpanningTree::TimeToStr(secs_up) + (current->rtt == 0 ? "]" : " Lag: " + ConvToStr(current->rtt) + "ms]");
}
std::vector<std::string> map;
map.push_back(buffer);
const TreeServer::ChildServers& servers = current->GetChildren();
for (TreeServer::ChildServers::const_iterator i = servers.begin(); i != servers.end(); ++i)
{
TreeServer* child = *i;
if (IsHidden(user, child))
continue;
bool last = true;
for (TreeServer::ChildServers::const_iterator j = i + 1; last && j != servers.end(); ++j)
if (!IsHidden(user, *j))
last = false;
unsigned int next_len;
if (user->IsOper() || !Utils->FlatLinks)
{
// This child is indented by us, so remove the depth from the max length to align the users properly
next_len = max_len - 2;
}
else
{
// This user can not see depth, so max_len remains constant
next_len = max_len;
}
// Build the map for this child
std::vector<std::string> child_map = GetMap(user, child, next_len, depth + 1);
for (std::vector<std::string>::const_iterator j = child_map.begin(); j != child_map.end(); ++j)
{
const char* prefix;
if (user->IsOper() || !Utils->FlatLinks)
{
// If this server is not the root child
if (j != child_map.begin())
{
// If this child is not my last child, then add |
// to be able to "link" the next server in my list to me, and to indent this childs servers
if (!last)
prefix = "| ";
// Otherwise this is my last child, so just use a space as theres nothing else linked to me below this
else
prefix = " ";
}
// If we get here, this server must be the root child
else
{
// If this is the last child, it gets a `-
if (last)
prefix = "`-";
// Otherwise this isn't the last child, so it gets |-
else
prefix = "|-";
}
}
else
// User can't see depth, so use no prefix
prefix = "";
// Add line to the map
map.push_back(prefix + *j);
}
}
return map;
}
CmdResult CommandMap::Handle(const std::vector<std::string>& parameters, User* user)
{
if (parameters.size() > 0)
{
// Remote MAP, the target server is the 1st parameter
TreeServer* s = Utils->FindServerMask(parameters[0]);
if (!s)
{
user->WriteNumeric(ERR_NOSUCHSERVER, parameters[0], "No such server");
return CMD_FAILURE;
}
if (!s->IsRoot())
return CMD_SUCCESS;
}
// Max depth and max server name length
unsigned int max_depth = 0;
unsigned int max_len = 0;
GetDepthAndLen(Utils->TreeRoot, 0, max_depth, max_len);
unsigned int max;
if (user->IsOper() || !Utils->FlatLinks)
{
// Each level of the map is indented by 2 characters, making the max possible line (max_depth * 2) + max_len
max = (max_depth * 2) + max_len;
}
else
{
// This user can't see any depth
max = max_len;
}
std::vector<std::string> map = GetMap(user, Utils->TreeRoot, max, 0);
for (std::vector<std::string>::const_iterator i = map.begin(); i != map.end(); ++i)
user->SendText(":%s %03d %s :%s", ServerInstance->Config->ServerName.c_str(),
RPL_MAP, user->nick.c_str(), i->c_str());
size_t totusers = ServerInstance->Users->GetUsers().size();
float avg_users = (float) totusers / Utils->serverlist.size();
user->SendText(":%s %03d %s :%u server%s and %u user%s, average %.2f users per server",
ServerInstance->Config->ServerName.c_str(), RPL_MAPUSERS, user->nick.c_str(),
(unsigned int)Utils->serverlist.size(), (Utils->serverlist.size() > 1 ? "s" : ""), (unsigned int)totusers, (totusers > 1 ? "s" : ""), avg_users);
user->SendText(":%s %03d %s :End of /MAP", ServerInstance->Config->ServerName.c_str(),
RPL_ENDMAP, user->nick.c_str());
return CMD_SUCCESS;
}
RouteDescriptor CommandMap::GetRouting(User* user, const std::vector<std::string>& parameters)
{
if (!parameters.empty())
return ROUTE_UNICAST(parameters[0]);
return ROUTE_LOCALONLY;
}
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