inspircd/src/modules/m_httpd_config.cpp

/*
 * InspIRCd -- Internet Relay Chat Daemon
 *
 *   Copyright (C) 2019 linuxdaemon <linuxdaemon.irc@gmail.com>
 *   Copyright (C) 2013, 2017-2018 Sadie Powell <sadie@witchery.services>
 *   Copyright (C) 2013, 2015 Attila Molnar <attilamolnar@hush.com>
 *   Copyright (C) 2012 Robby <robby@chatbelgie.be>
 *   Copyright (C) 2009-2010 Daniel De Graaf <danieldg@inspircd.org>
 *   Copyright (C) 2009 Uli Schlachter <psychon@inspircd.org>
 *   Copyright (C) 2008, 2010 Craig Edwards <brain@inspircd.org>
 *
 * 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 "modules/httpd.h"

class ModuleHttpConfig : public Module, public HTTPRequestEventListener
{
 private:
	HTTPdAPI API;

 public:
	ModuleHttpConfig()
		: Module(VF_VENDOR, "Allows the server configuration to be viewed over HTTP via the /config path.")
		, HTTPRequestEventListener(this)
		, API(this)
	{
	}

	ModResult OnHTTPRequest(HTTPRequest& request) override
	{
		if ((request.GetPath() != "/config") && (request.GetPath() != "/config/"))
			return MOD_RES_PASSTHRU;

		ServerInstance->Logs.Log(MODNAME, LOG_DEBUG, "Handling request for the HTTP /config route");
		std::stringstream buffer;

		for (auto& [_, tag] : ServerInstance->Config->config_data)
		{
			// Show the location of the tag in a comment.
			buffer << "# " << tag->source.str() << std::endl
				<< '<' << tag->name << ' ';

			// Print out the tag with all keys aligned vertically.
			const std::string indent(tag->name.length() + 2, ' ');
			const ConfigTag::Items& items = tag->GetItems();
			for (ConfigTag::Items::const_iterator kiter = items.begin(); kiter != items.end(); )
			{
				ConfigTag::Items::const_iterator curr = kiter++;
				buffer << curr->first << "=\"" << ServerConfig::Escape(curr->second) << '"';
				if (kiter != items.end())
					buffer << std::endl << indent;
			}
			buffer << '>' << std::endl << std::endl;
		}

		HTTPDocumentResponse response(this, request, &buffer, 200);
		response.headers.SetHeader("X-Powered-By", MODNAME);
		response.headers.SetHeader("Content-Type", "text/plain");
		API->SendResponse(response);
		return MOD_RES_DENY;
	}
};

MODULE_INIT(ModuleHttpConfig)