Add m_showfile, remove cmd_rules

2 files changed, 179 insertions, 0 deletions

diff --git a/src/modules/m_showfile.cpp b/src/modules/m_showfile.cpp
new file mode 100644
index 000000000..0f5d3ed1a
--- /dev/null
+++ b/src/modules/m_showfile.cpp
@@ -0,0 +1,175 @@
+/*
+ * InspIRCd -- Internet Relay Chat Daemon
+ *
+ *   Copyright (C) 2013 Attila Molnar <attilamolnar@hush.com>
+ *
+ * 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"
+
+class CommandShowFile : public Command
+{
+	enum Method
+	{
+		SF_MSG,
+		SF_NOTICE,
+		SF_NUMERIC
+	};
+
+	std::string introtext;
+	std::string endtext;
+	unsigned int intronumeric;
+	unsigned int textnumeric;
+	unsigned int endnumeric;
+	file_cache contents;
+	Method method;
+
+ public:
+	CommandShowFile(Module* parent, const std::string& cmdname)
+		: Command(parent, cmdname)
+	{
+	}
+
+	CmdResult Handle(const std::vector<std::string>& parameters, User* user) CXX11_OVERRIDE
+	{
+		const std::string& sn = ServerInstance->Config->ServerName;
+		if (method == SF_NUMERIC)
+		{
+			if (!introtext.empty())
+				user->SendText(":%s %03d %s :%s %s", sn.c_str(), intronumeric, user->nick.c_str(), sn.c_str(), introtext.c_str());
+
+			for (file_cache::const_iterator i = contents.begin(); i != contents.end(); ++i)
+				user->SendText(":%s %03d %s :- %s", sn.c_str(), textnumeric, user->nick.c_str(), i->c_str());
+
+			user->SendText(":%s %03d %s :%s", sn.c_str(), endnumeric, user->nick.c_str(), endtext.c_str());
+		}
+		else
+		{
+			const char* msgcmd = (method == SF_MSG ? "PRIVMSG" : "NOTICE");
+			std::string header = InspIRCd::Format(":%s %s %s :", sn.c_str(), msgcmd, user->nick.c_str());
+			for (file_cache::const_iterator i = contents.begin(); i != contents.end(); ++i)
+				user->SendText(header + *i);
+		}
+		return CMD_SUCCESS;
+	}
+
+	void UpdateSettings(ConfigTag* tag, const std::vector<std::string>& filecontents)
+	{
+		introtext = tag->getString("introtext", "Showing " + name);
+		endtext = tag->getString("endtext", "End of " + name);
+		intronumeric = tag->getInt("intronumeric", RPL_RULESTART, 0, 999);
+		textnumeric = tag->getInt("numeric", RPL_RULES, 0, 999);
+		endnumeric = tag->getInt("endnumeric", RPL_RULESEND, 0, 999);
+		std::string smethod = tag->getString("method");
+
+		method = SF_NUMERIC;
+		if (smethod == "msg")
+			method = SF_MSG;
+		else if (smethod == "notice")
+			method = SF_NOTICE;
+
+		contents = filecontents;
+		if (tag->getBool("colors"))
+			InspIRCd::ProcessColors(contents);
+	}
+};
+
+class ModuleShowFile : public Module
+{
+	std::vector<CommandShowFile*> cmds;
+
+	void ReadTag(ConfigTag* tag, std::vector<CommandShowFile*>& newcmds)
+	{
+		std::string cmdname = tag->getString("name");
+		if (cmdname.empty())
+			throw ModuleException("Empty value for 'name'");
+
+		std::transform(cmdname.begin(), cmdname.end(), cmdname.begin(), ::toupper);
+
+		const std::string file = tag->getString("file", cmdname);
+		if (file.empty())
+			throw ModuleException("Empty value for 'file'");
+		FileReader reader(file);
+
+		CommandShowFile* sfcmd;
+		Command* handler = ServerInstance->Parser->GetHandler(cmdname);
+		if (handler)
+		{
+			// Command exists, check if it is ours
+			if (handler->creator != this)
+				throw ModuleException("Command " + cmdname + " already exists");
+
+			// This is our command, make sure we don't have the same entry twice
+			sfcmd = static_cast<CommandShowFile*>(handler);
+			if (std::find(newcmds.begin(), newcmds.end(), sfcmd) != newcmds.end())
+				throw ModuleException("Command " + cmdname + " is already used in a <showfile> tag");
+		}
+		else
+		{
+			// Command doesn't exist, create it
+			sfcmd = new CommandShowFile(this, cmdname);
+			ServerInstance->Modules->AddService(*sfcmd);
+		}
+
+		sfcmd->UpdateSettings(tag, reader.GetVector());
+		newcmds.push_back(sfcmd);
+	}
+
+	static void DelAll(const std::vector<CommandShowFile*>& list)
+	{
+		for (std::vector<CommandShowFile*>::const_iterator i = list.begin(); i != list.end(); ++i)
+			delete *i;
+	}
+
+ public:
+	void ReadConfig(ConfigStatus& status) CXX11_OVERRIDE
+	{
+		std::vector<CommandShowFile*> newcmds;
+
+		ConfigTagList tags = ServerInstance->Config->ConfTags("showfile");
+		for (ConfigIter i = tags.first; i != tags.second; ++i)
+		{
+			ConfigTag* tag = i->second;
+			try
+			{
+				ReadTag(tag, newcmds);
+			}
+			catch (CoreException& ex)
+			{
+				ServerInstance->Logs->Log(MODNAME, LOG_DEFAULT, "Error: " + ex.GetReason() + " at " + tag->getTagLocation());
+			}
+		}
+
+		// Remove all commands that were removed from the config
+		std::vector<CommandShowFile*> removed(cmds.size());
+		std::sort(newcmds.begin(), newcmds.end());
+		std::set_difference(cmds.begin(), cmds.end(), newcmds.begin(), newcmds.end(), removed.begin());
+
+		DelAll(removed);
+		cmds.swap(newcmds);
+	}
+
+	~ModuleShowFile()
+	{
+		DelAll(cmds);
+	}
+
+	Version GetVersion() CXX11_OVERRIDE
+	{
+		return Version("Provides support for showing text files to users", VF_VENDOR);
+	}
+};
+
+MODULE_INIT(ModuleShowFile)
diff --git a/src/modules/m_spanningtree/compat.cpp b/src/modules/m_spanningtree/compat.cpp
index f3d6ac66a..1d573b8b4 100644
--- a/src/modules/m_spanningtree/compat.cpp
+++ b/src/modules/m_spanningtree/compat.cpp
@@ -293,6 +293,10 @@ bool TreeSocket::PreProcessOldProtocolMessage(User*& who, std::string& cmd, std:
 		params.insert(params.begin()+1, cmd);
 		cmd = "ENCAP";
 	}
+	else if (cmd == "RULES")
+	{
+		return false;
+	}
 
 	return true; // Passthru
 }