X-Git-Url: https://git.netwichtig.de/gitweb/?a=blobdiff_plain;f=src%2Fmodules%2Fm_dccallow.cpp;h=98bcbf4cd46506083603d3fd5adb813a2907516b;hb=80e81e3b81b779901fd9d67f8ae030ee30c0bcec;hp=e0ea4c7aeed89e7d20ab38cdc05bb0320e4e8ff5;hpb=87b1461e2a4710a38b32186c2582da9fe9bb3804;p=user%2Fhenk%2Fcode%2Finspircd.git

diff --git a/src/modules/m_dccallow.cpp b/src/modules/m_dccallow.cpp
index e0ea4c7ae..98bcbf4cd 100644
--- a/src/modules/m_dccallow.cpp
+++ b/src/modules/m_dccallow.cpp
@@ -1,13 +1,19 @@
 /*
  * InspIRCd -- Internet Relay Chat Daemon
  *
- *   Copyright (C) 2009 Daniel De Graaf <danieldg@inspircd.org>
- *   Copyright (C) 2008 John Brooks <john.brooks@dereferenced.net>
- *   Copyright (C) 2008 Pippijn van Steenhoven <pip88nl@gmail.com>
- *   Copyright (C) 2006-2008 Craig Edwards <craigedwards@brainbox.cc>
+ *   Copyright (C) 2019 Matt Schatz <genius3000@g3k.solutions>
+ *   Copyright (C) 2018 linuxdaemon <linuxdaemon.irc@gmail.com>
+ *   Copyright (C) 2016 Adam <Adam@anope.org>
+ *   Copyright (C) 2013, 2017-2020 Sadie Powell <sadie@witchery.services>
+ *   Copyright (C) 2012-2016 Attila Molnar <attilamolnar@hush.com>
+ *   Copyright (C) 2012, 2014, 2019 Robby <robby@chatbelgie.be>
+ *   Copyright (C) 2009-2010 Daniel De Graaf <danieldg@inspircd.org>
+ *   Copyright (C) 2009 Matt Smith <dz@inspircd.org>
+ *   Copyright (C) 2008, 2010 Craig Edwards <brain@inspircd.org>
+ *   Copyright (C) 2008 John Brooks <special@inspircd.org>
  *   Copyright (C) 2007-2008 Robin Burchell <robin+git@viroteck.net>
- *   Copyright (C) 2007 Dennis Friis <peavey@inspircd.org>
- *   Copyright (C) 2006 Jamie ??? <???@???>
+ *   Copyright (C) 2007-2008 Dennis Friis <peavey@inspircd.org>
+ *   Copyright (C) 2006 jamie <jamie@e03df62e-2008-0410-955e-edbf42e46eb7>
  *
  * 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
@@ -98,21 +104,92 @@ typedef std::vector<DCCAllow> dccallowlist;
 dccallowlist* dl;
 typedef std::vector<BannedFileList> bannedfilelist;
 bannedfilelist bfl;
-typedef SimpleExtItem<dccallowlist> DCCAllowExt;
 
-class CommandDccallow : public Command
+class DCCAllowExt : public SimpleExtItem<dccallowlist>
 {
-	DCCAllowExt& ext;
-
  public:
 	unsigned int maxentries;
+
+	DCCAllowExt(Module* Creator)
+		: SimpleExtItem<dccallowlist>("dccallow", ExtensionItem::EXT_USER, Creator)
+	{
+	}
+
+	void FromInternal(Extensible* container, const std::string& value) CXX11_OVERRIDE
+	{
+		LocalUser* user = IS_LOCAL(static_cast<User*>(container));
+		if (!user)
+			return;
+
+		// Remove the old list and create a new one.
+		unset(user);
+		dccallowlist* list = new dccallowlist();
+
+		irc::spacesepstream ts(value);
+		while (!ts.StreamEnd())
+		{
+			// Check we have space for another entry.
+			if (list->size() >= maxentries)
+			{
+				ServerInstance->Logs->Log(MODNAME, LOG_DEBUG, "Oversized DCC allow list received for %s: %s",
+					user->uuid.c_str(), value.c_str());
+				delete list;
+				return;
+			}
+
+			// Extract the fields.
+			DCCAllow dccallow;
+			if (!ts.GetToken(dccallow.nickname) ||
+				!ts.GetToken(dccallow.hostmask) ||
+				!ts.GetNumericToken(dccallow.set_on) ||
+				!ts.GetNumericToken(dccallow.length))
+			{
+				ServerInstance->Logs->Log(MODNAME, LOG_DEBUG, "Malformed DCC allow list received for %s: %s",
+					user->uuid.c_str(), value.c_str());
+				delete list;
+				return;
+			}
+
+			// Store the DCC allow entry.
+			list->push_back(dccallow);
+		}
+
+		// The value was well formed.
+		set(user, list);
+	}
+
+	std::string ToInternal(const Extensible* container, void* item) const CXX11_OVERRIDE
+	{
+		dccallowlist* list = static_cast<dccallowlist*>(item);
+		std::string buf;
+		for (dccallowlist::const_iterator iter = list->begin(); iter != list->end(); ++iter)
+		{
+			if (iter != list->begin())
+				buf.push_back(' ');
+
+			buf.append(iter->nickname);
+			buf.push_back(' ');
+			buf.append(iter->hostmask);
+			buf.push_back(' ');
+			buf.append(ConvToStr(iter->set_on));
+			buf.push_back(' ');
+			buf.append(ConvToStr(iter->length));
+		}
+		return buf;
+	}
+};
+
+class CommandDccallow : public Command
+{
+ public:
+	DCCAllowExt& ext;
 	unsigned long defaultlength;
 	CommandDccallow(Module* parent, DCCAllowExt& Ext)
 		: Command(parent, "DCCALLOW", 0)
 		, ext(Ext)
 	{
 		syntax = "[(+|-)<nick> [<time>]]|[LIST|HELP]";
-		/* XXX we need to fix this so it can work with translation stuff (i.e. move +- into a seperate param */
+		/* XXX we need to fix this so it can work with translation stuff (i.e. move +- into a separate param */
 	}
 
 	CmdResult Handle(User* user, const Params& parameters) CXX11_OVERRIDE
@@ -131,13 +208,13 @@ class CommandDccallow : public Command
 			// if they didn't specify an action, this is probably a command
 			if (action != '+' && action != '-')
 			{
-				if (!strcasecmp(parameters[0].c_str(), "LIST"))
+				if (irc::equals(parameters[0], "LIST"))
 				{
 					// list current DCCALLOW list
 					DisplayDCCAllowList(user);
 					return CMD_FAILURE;
 				}
-				else if (!strcasecmp(parameters[0].c_str(), "HELP"))
+				else if (irc::equals(parameters[0], "HELP"))
 				{
 					// display help
 					DisplayHelp(user);
@@ -191,7 +268,7 @@ class CommandDccallow : public Command
 						ul.push_back(user);
 					}
 
-					if (dl->size() >= maxentries)
+					if (dl->size() >= ext.maxentries)
 					{
 						user->WriteNumeric(ERR_DCCALLOWINVALID, user->nick, "Too many nicks on DCCALLOW list");
 						return CMD_FAILURE;
@@ -301,7 +378,7 @@ class ModuleDCCAllow : public Module
 
  public:
 	ModuleDCCAllow()
-		: ext("dccallow", ExtensionItem::EXT_USER, this)
+		: ext(this)
 		, cmd(this, ext)
 		, blockchat(false)
 	{
@@ -338,14 +415,16 @@ class ModuleDCCAllow : public Module
 			if (user == u)
 				return MOD_RES_PASSTHRU;
 
-			if ((details.text.length()) && (details.text[0] == '\1'))
+			std::string ctcpname;
+			std::string ctcpbody;
+			if (details.IsCTCP(ctcpname, ctcpbody))
 			{
 				Expire();
 
 				// :jamie!jamie@test-D4457903BA652E0F.silverdream.org PRIVMSG eimaj :DCC SEND m_dnsbl.cpp 3232235786 52650 9676
 				// :jamie!jamie@test-D4457903BA652E0F.silverdream.org PRIVMSG eimaj :VERSION
 
-				if (strncmp(details.text.c_str(), "\1DCC ", 5) == 0)
+				if (irc::equals(ctcpname, "DCC") && !ctcpbody.empty())
 				{
 					dl = ext.get(u);
 					if (dl && dl->size())
@@ -355,18 +434,17 @@ class ModuleDCCAllow : public Module
 								return MOD_RES_PASSTHRU;
 					}
 
-					std::string buf = details.text.substr(5);
-					size_t s = buf.find(' ');
+					size_t s = ctcpbody.find(' ');
 					if (s == std::string::npos)
 						return MOD_RES_PASSTHRU;
 
-					const std::string type = buf.substr(0, s);
+					const std::string type = ctcpbody.substr(0, s);
 
-					if (stdalgo::string::equalsci(type, "SEND"))
+					if (irc::equals(type, "SEND"))
 					{
 						size_t first;
 
-						buf = buf.substr(s + 1);
+						std::string buf = ctcpbody.substr(s + 1);
 
 						if (!buf.empty() && buf[0] == '"')
 						{
@@ -414,7 +492,7 @@ class ModuleDCCAllow : public Module
 						u->WriteNotice("If you trust " + user->nick + " and were expecting this, you can type /DCCALLOW HELP for information on the DCCALLOW system.");
 						return MOD_RES_DENY;
 					}
-					else if ((blockchat) && (stdalgo::string::equalsci(type, "CHAT")))
+					else if (blockchat && irc::equals(type, "CHAT"))
 					{
 						user->WriteNotice("The user " + u->nick + " is not accepting DCC CHAT requests from you.");
 						u->WriteNotice(user->nick + " (" + user->ident + "@" + user->GetDisplayedHost() + ") attempted to initiate a DCC CHAT session, which was blocked.");
@@ -521,7 +599,7 @@ class ModuleDCCAllow : public Module
 		bfl.swap(newbfl);
 
 		ConfigTag* tag = ServerInstance->Config->ConfValue("dccallow");
-		cmd.maxentries = tag->getUInt("maxentries", 20);
+		cmd.ext.maxentries = tag->getUInt("maxentries", 20);
 		cmd.defaultlength = tag->getDuration("length", 0);
 		blockchat = tag->getBool("blockchat");
 		defaultaction = tag->getString("action");
@@ -529,7 +607,7 @@ class ModuleDCCAllow : public Module
 
 	Version GetVersion() CXX11_OVERRIDE
 	{
-		return Version("Provides the DCCALLOW command", VF_COMMON | VF_VENDOR);
+		return Version("Allows the server administrator to configure what files are allowed to be sent via DCC SEND and allows users to configure who can send them DCC CHAT and DCC SEND requests.", VF_COMMON | VF_VENDOR);
 	}
 };