-/* +------------------------------------+
- * | Inspire Internet Relay Chat Daemon |
- * +------------------------------------+
+/*
+ * InspIRCd -- Internet Relay Chat Daemon
*
- * InspIRCd: (C) 2002-2010 InspIRCd Development Team
- * See: http://wiki.inspircd.org/Credits
+ * Copyright (C) 2009-2010 Daniel De Graaf <danieldg@inspircd.org>
+ * Copyright (C) 2008-2009 Robin Burchell <robin+git@viroteck.net>
*
- * This program is free but copyrighted software; see
- * the file COPYING for details.
+ * 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 <fstream>
-/* $ModDesc: Provides support for channel mode +P to provide permanent channels */
-// Not in a class due to circular dependancy hell.
-static std::string permchannelsconf;
-static bool WriteDatabase()
+/** Handles the +P channel mode
+ */
+class PermChannel : public ModeHandler
{
- FILE *f;
-
- if (permchannelsconf.empty())
+ public:
+ PermChannel(Module* Creator)
+ : ModeHandler(Creator, "permanent", 'P', PARAM_NONE, MODETYPE_CHANNEL)
{
- // Fake success.
- return true;
+ oper = true;
}
- std::string tempname = permchannelsconf + ".tmp";
+ ModeAction OnModeChange(User* source, User* dest, Channel* channel, std::string& parameter, bool adding)
+ {
+ if (adding == channel->IsModeSet(this))
+ return MODEACTION_DENY;
+
+ channel->SetMode(this, adding);
+ if (!adding)
+ channel->CheckDestroy();
+
+ return MODEACTION_ALLOW;
+ }
+};
+// Not in a class due to circular dependancy hell.
+static std::string permchannelsconf;
+static bool WriteDatabase(PermChannel& permchanmode)
+{
/*
* We need to perform an atomic write so as not to fuck things up.
- * So, let's write to a temporary file, flush and sync the FD, then rename the file..
- * -- w00t
+ * So, let's write to a temporary file, flush it, then rename the file..
+ * -- w00t
*/
- f = fopen(tempname.c_str(), "w");
- if (!f)
+
+ // If the user has not specified a configuration file then we don't write one.
+ if (permchannelsconf.empty())
+ return true;
+
+ std::string permchannelsnewconf = permchannelsconf + ".tmp";
+ std::ofstream stream(permchannelsnewconf.c_str());
+ if (!stream.is_open())
{
- ServerInstance->Logs->Log("m_permchannels",DEFAULT, "permchannels: Cannot create database! %s (%d)", strerror(errno), errno);
+ ServerInstance->Logs->Log(MODNAME, LOG_DEFAULT, "Cannot create database! %s (%d)", strerror(errno), errno);
ServerInstance->SNO->WriteToSnoMask('a', "database: cannot create new db: %s (%d)", strerror(errno), errno);
return false;
}
+
+ stream << "# This file is automatically generated by m_permchannels. Any changes will be overwritten." << std::endl
+ << "<config format=\"xml\">" << std::endl;
- // Now, let's write.
for (chan_hash::const_iterator i = ServerInstance->chanlist->begin(); i != ServerInstance->chanlist->end(); i++)
{
Channel* chan = i->second;
- if (!chan->IsModeSet('P'))
+ if (!chan->IsModeSet(permchanmode))
continue;
- char line[1024];
- const char* items[] =
- {
- "<permchannels channel=",
- chan->name.c_str(),
- " topic=",
- chan->topic.c_str(),
- " modes=",
- chan->ChanModes(true),
- ">\n"
- };
-
- int lpos = 0, item = 0, ipos = 0;
- while (lpos < 1022 && item < 7)
- {
- char c = items[item][ipos++];
- if (c == 0)
- {
- // end of this string; hop to next string, insert a quote
- item++;
- ipos = 0;
- c = '"';
- }
- else if (c == '\\' || c == '"')
- {
- line[lpos++] = '\\';
- }
- line[lpos++] = c;
- }
- line[--lpos] = 0;
- fputs(line, f);
+ stream << "<permchannels channel=\"" << ServerConfig::Escape(chan->name)
+ << "\" topic=\"" << ServerConfig::Escape(chan->topic)
+ << "\" modes=\"" << ServerConfig::Escape(chan->ChanModes(true))
+ << "\">" << std::endl;
}
- int write_error = 0;
- write_error = ferror(f);
- write_error |= fclose(f);
- if (write_error)
+ if (stream.fail())
{
- ServerInstance->Logs->Log("m_permchannels",DEFAULT, "permchannels: Cannot write to new database! %s (%d)", strerror(errno), errno);
+ ServerInstance->Logs->Log(MODNAME, LOG_DEFAULT, "Cannot write to new database! %s (%d)", strerror(errno), errno);
ServerInstance->SNO->WriteToSnoMask('a', "database: cannot write to new db: %s (%d)", strerror(errno), errno);
return false;
}
+ stream.close();
+#ifdef _WIN32
+ if (remove(permchannelsconf.c_str()))
+ {
+ ServerInstance->Logs->Log(MODNAME, LOG_DEFAULT, "Cannot remove old database! %s (%d)", strerror(errno), errno);
+ ServerInstance->SNO->WriteToSnoMask('a', "database: cannot remove old database: %s (%d)", strerror(errno), errno);
+ return false;
+ }
+#endif
// Use rename to move temporary to new db - this is guarenteed not to fuck up, even in case of a crash.
- if (rename(tempname.c_str(), permchannelsconf.c_str()) < 0)
+ if (rename(permchannelsnewconf.c_str(), permchannelsconf.c_str()) < 0)
{
- ServerInstance->Logs->Log("m_permchannels",DEFAULT, "permchannels: Cannot move new to old database! %s (%d)", strerror(errno), errno);
+ ServerInstance->Logs->Log(MODNAME, LOG_DEFAULT, "Cannot move new to old database! %s (%d)", strerror(errno), errno);
ServerInstance->SNO->WriteToSnoMask('a', "database: cannot replace old with new db: %s (%d)", strerror(errno), errno);
return false;
}
return true;
}
-
-
-/** Handles the +P channel mode
- */
-class PermChannel : public ModeHandler
-{
- public:
- PermChannel(Module* Creator) : ModeHandler(Creator, "permanent", 'P', PARAM_NONE, MODETYPE_CHANNEL) { }
-
- ModeAction OnModeChange(User* source, User* dest, Channel* channel, std::string ¶meter, bool adding)
- {
- if (!source->HasPrivPermission("channels/set-permanent"))
- {
- source->WriteNumeric(ERR_NOPRIVILEGES, "%s :Permission Denied - You do not have the required operator privileges", source->nick.c_str());
- return MODEACTION_DENY;
- }
-
- if (adding)
- {
- if (!channel->IsModeSet('P'))
- {
- channel->SetMode('P',true);
-
- // Save permchannels db if needed.
- WriteDatabase();
- return MODEACTION_ALLOW;
- }
- }
- else
- {
- if (channel->IsModeSet('P'))
- {
- if (channel->GetUserCounter() == 0 && !IS_SERVER(source))
- {
- /*
- * ugh, ugh, UGH!
- *
- * We can't delete this channel the way things work at the moment,
- * because of the following scenario:
- * s1:#c <-> s2:#c
- *
- * s1 has a user in #c, s2 does not. s2 has +P set. s2 has a losing TS.
- *
- * On netmerge, s2 loses, so s2 removes all modes (including +P) which
- * would subsequently delete the channel here causing big fucking problems.
- *
- * I don't think there's really a way around this, so just deny -P on a 0 user chan.
- * -- w00t
- *
- * delete channel;
- */
- return MODEACTION_DENY;
- }
-
- /* for servers, remove +P (to avoid desyncs) but don't bother trying to delete. */
- channel->SetMode('P',false);
-
- // Save permchannels db if needed.
- WriteDatabase();
- return MODEACTION_ALLOW;
- }
- }
-
- return MODEACTION_DENY;
- }
-};
-
class ModulePermanentChannels : public Module
{
PermChannel p;
+ bool dirty;
public:
- ModulePermanentChannels() : p(this)
+ ModulePermanentChannels() : p(this), dirty(false)
+ {
+ }
+
+ void init() CXX11_OVERRIDE
{
- if (!ServerInstance->Modes->AddMode(&p))
- throw ModuleException("Could not add new modes!");
- Implementation eventlist[] = { I_OnChannelPreDelete, I_OnPostTopicChange, I_OnRawMode, I_OnRehash };
- ServerInstance->Modules->Attach(eventlist, this, 4);
+ ServerInstance->Modules->AddService(p);
+ Implementation eventlist[] = { I_OnChannelPreDelete, I_OnPostTopicChange, I_OnRawMode, I_OnRehash, I_OnBackgroundTimer };
+ ServerInstance->Modules->Attach(eventlist, this, sizeof(eventlist)/sizeof(Implementation));
OnRehash(NULL);
}
{
chan_hash::iterator at = iter;
iter++;
- FOREACH_MOD(I_OnChannelDelete, OnChannelDelete(c));
+ FOREACH_MOD(OnChannelDelete, (c));
ServerInstance->chanlist->erase(at);
ServerInstance->GlobalCulls.AddItem(c);
}
return Module::cull();
}
- virtual void OnRehash(User *user)
+ void OnRehash(User *user) CXX11_OVERRIDE
+ {
+ permchannelsconf = ServerInstance->Config->ConfValue("permchanneldb")->getString("filename");
+ }
+
+ void LoadDatabase()
{
/*
* Process config-defined list of permanent channels.
* -- w00t
*/
-
- permchannelsconf = ServerInstance->Config->ConfValue("permchanneldb")->getString("filename");
-
ConfigTagList permchannels = ServerInstance->Config->ConfTags("permchannels");
for (ConfigIter i = permchannels.first; i != permchannels.second; ++i)
{
if (channel.empty())
{
- ServerInstance->Logs->Log("blah", DEBUG, "Malformed permchannels tag with empty channel name.");
+ ServerInstance->Logs->Log(MODNAME, LOG_DEBUG, "Malformed permchannels tag with empty channel name.");
continue;
}
c = new Channel(channel, ServerInstance->Time());
if (!topic.empty())
{
- c->SetTopic(NULL, topic, true);
+ c->SetTopic(ServerInstance->FakeClient, topic);
/*
* Due to the way protocol works in 1.2, we need to hack the topic TS in such a way that this
*/
c->topicset = 42;
}
- ServerInstance->Logs->Log("blah", DEBUG, "Added %s with topic %s", channel.c_str(), topic.c_str());
+ ServerInstance->Logs->Log(MODNAME, LOG_DEBUG, "Added %s with topic %s", channel.c_str(), topic.c_str());
if (modes.empty())
continue;
}
}
- virtual ModResult OnRawMode(User* user, Channel* chan, const char mode, const std::string ¶m, bool adding, int pcnt)
+ ModResult OnRawMode(User* user, Channel* chan, const char mode, const std::string ¶m, bool adding, int pcnt) CXX11_OVERRIDE
{
- if (chan && chan->IsModeSet('P'))
- WriteDatabase();
+ if (chan && (chan->IsModeSet(p) || mode == p.GetModeChar()))
+ dirty = true;
return MOD_RES_PASSTHRU;
}
- virtual void OnPostTopicChange(User*, Channel *c, const std::string&)
+ void OnPostTopicChange(User*, Channel *c, const std::string&) CXX11_OVERRIDE
{
- if (c->IsModeSet('P'))
- WriteDatabase();
+ if (c->IsModeSet(p))
+ dirty = true;
+ }
+
+ void OnBackgroundTimer(time_t) CXX11_OVERRIDE
+ {
+ if (dirty)
+ WriteDatabase(p);
+ dirty = false;
+ }
+
+ void Prioritize()
+ {
+ // XXX: Load the DB here because the order in which modules are init()ed at boot is
+ // alphabetical, this means we must wait until all modules have done their init()
+ // to be able to set the modes they provide (e.g.: m_stripcolor is inited after us)
+ // Prioritize() is called after all module initialization is complete, consequently
+ // all modes are available now
+
+ static bool loaded = false;
+ if (loaded)
+ return;
+
+ loaded = true;
+
+ // Load only when there are no linked servers - we set the TS of the channels we
+ // create to the current time, this can lead to desync because spanningtree has
+ // no way of knowing what we do
+ ProtoServerList serverlist;
+ ServerInstance->PI->GetServerList(serverlist);
+ if (serverlist.size() < 2)
+ {
+ try
+ {
+ LoadDatabase();
+ }
+ catch (CoreException& e)
+ {
+ ServerInstance->Logs->Log(MODNAME, LOG_DEFAULT, "Error loading permchannels database: " + std::string(e.GetReason()));
+ }
+ }
}
- virtual Version GetVersion()
+ Version GetVersion() CXX11_OVERRIDE
{
return Version("Provides support for channel mode +P to provide permanent channels",VF_VENDOR);
}
- virtual ModResult OnChannelPreDelete(Channel *c)
+ ModResult OnChannelPreDelete(Channel *c) CXX11_OVERRIDE
{
- if (c->IsModeSet('P'))
+ if (c->IsModeSet(p))
return MOD_RES_DENY;
return MOD_RES_PASSTHRU;
projects / user / henk / code / inspircd.git / blobdiff