-/* +------------------------------------+
- * | Inspire Internet Relay Chat Daemon |
- * +------------------------------------+
+/*
+ * InspIRCd -- Internet Relay Chat Daemon
*
- * InspIRCd: (C) 2002-2008 InspIRCd Development Team
- * See: http://www.inspircd.org/wiki/index.php/Credits
+ * Copyright (C) 2018-2019 linuxdaemon <linuxdaemon.irc@gmail.com>
+ * Copyright (C) 2013, 2017-2018, 2020 Sadie Powell <sadie@witchery.services>
+ * Copyright (C) 2013, 2015 Attila Molnar <attilamolnar@hush.com>
+ * Copyright (C) 2012, 2019 Robby <robby@chatbelgie.be>
+ * Copyright (C) 2009-2010 Daniel De Graaf <danieldg@inspircd.org>
+ * Copyright (C) 2008, 2010 Craig Edwards <brain@inspircd.org>
+ * Copyright (C) 2008 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 "httpd.h"
-#include "protocol.h"
+#include "modules/httpd.h"
-/* $ModDesc: Provides access control lists (passwording of resources, ip restrictions etc) to m_httpd.so dependent modules */
-/* $ModDep: httpd.h */
+class HTTPACL
+{
+ public:
+ std::string path;
+ std::string username;
+ std::string password;
+ std::string whitelist;
+ std::string blacklist;
-class ModuleHTTPAccessList : public Module
+ HTTPACL(const std::string &set_path, const std::string &set_username, const std::string &set_password,
+ const std::string &set_whitelist, const std::string &set_blacklist)
+ : path(set_path), username(set_username), password(set_password), whitelist(set_whitelist),
+ blacklist(set_blacklist) { }
+};
+
+class ModuleHTTPAccessList : public Module, public HTTPACLEventListener
{
-
- std::string stylesheet;
- bool changed;
+ private:
+ std::vector<HTTPACL> acl_list;
+ HTTPdAPI API;
public:
-
- void ReadConfig()
+ ModuleHTTPAccessList()
+ : HTTPACLEventListener(this)
+ , API(this)
{
- ConfigReader c(ServerInstance);
}
- ModuleHTTPAccessList(InspIRCd* Me) : Module(Me)
+ void ReadConfig(ConfigStatus& status) CXX11_OVERRIDE
{
- ReadConfig();
- this->changed = true;
- Implementation eventlist[] = { I_OnEvent, I_OnRequest };
- ServerInstance->Modules->Attach(eventlist, this, 2);
+ std::vector<HTTPACL> new_acls;
+ ConfigTagList acls = ServerInstance->Config->ConfTags("httpdacl");
+ for (ConfigIter i = acls.first; i != acls.second; i++)
+ {
+ ConfigTag* c = i->second;
+ std::string path = c->getString("path");
+ std::string types = c->getString("types");
+ irc::commasepstream sep(types);
+ std::string type;
+ std::string username;
+ std::string password;
+ std::string whitelist;
+ std::string blacklist;
+
+ while (sep.GetToken(type))
+ {
+ if (stdalgo::string::equalsci(type, "password"))
+ {
+ username = c->getString("username");
+ password = c->getString("password");
+ }
+ else if (stdalgo::string::equalsci(type, "whitelist"))
+ {
+ whitelist = c->getString("whitelist");
+ }
+ else if (stdalgo::string::equalsci(type, "blacklist"))
+ {
+ blacklist = c->getString("blacklist");
+ }
+ else
+ {
+ throw ModuleException("Invalid HTTP ACL type '" + type + "'");
+ }
+ }
+
+ ServerInstance->Logs->Log(MODNAME, LOG_DEBUG, "Read ACL: path=%s pass=%s whitelist=%s blacklist=%s", path.c_str(),
+ password.c_str(), whitelist.c_str(), blacklist.c_str());
+
+ new_acls.push_back(HTTPACL(path, username, password, whitelist, blacklist));
+ }
+ acl_list.swap(new_acls);
}
- void OnEvent(Event* event)
+ void BlockAccess(HTTPRequest* http, unsigned int returnval, const std::string &extraheaderkey = "", const std::string &extraheaderval="")
{
- std::stringstream data("");
+ ServerInstance->Logs->Log(MODNAME, LOG_DEBUG, "BlockAccess (%u)", returnval);
+
+ std::stringstream data;
+ data << "<html><head></head><body style='font-family: sans-serif; text-align: center'>"
+ << "<h1 style='font-size: 48pt'>Error " << returnval << "</h1>"
+ << "<h2 style='font-size: 24pt'>Access to this resource is denied by an access control list.</h2>"
+ << "<h2 style='font-size: 24pt'>Please contact your IRC administrator.</h2><hr>"
+ << "<small>Powered by <a href='https://www.inspircd.org'>InspIRCd</a></small></body></html>";
- if (event->GetEventID() == "httpd_url")
+ HTTPDocumentResponse response(this, *http, &data, returnval);
+ response.headers.SetHeader("X-Powered-By", MODNAME);
+ if (!extraheaderkey.empty())
+ response.headers.SetHeader(extraheaderkey, extraheaderval);
+ API->SendResponse(response);
+ }
+
+ bool IsAccessAllowed(HTTPRequest* http)
+ {
{
- ServerInstance->Logs->Log("m_http_stats", DEBUG,"Handling httpd event");
- HTTPRequest* http = (HTTPRequest*)event->GetData();
+ ServerInstance->Logs->Log(MODNAME, LOG_DEBUG, "Handling httpd acl event");
+ for (std::vector<HTTPACL>::const_iterator this_acl = acl_list.begin(); this_acl != acl_list.end(); ++this_acl)
+ {
+ if (InspIRCd::Match(http->GetPath(), this_acl->path, ascii_case_insensitive_map))
+ {
+ if (!this_acl->blacklist.empty())
+ {
+ /* Blacklist */
+ irc::commasepstream sep(this_acl->blacklist);
+ std::string entry;
+ while (sep.GetToken(entry))
+ {
+ if (InspIRCd::Match(http->GetIP(), entry, ascii_case_insensitive_map))
+ {
+ ServerInstance->Logs->Log(MODNAME, LOG_DEBUG, "Denying access to blacklisted resource %s (matched by pattern %s) from ip %s (matched by entry %s)",
+ http->GetPath().c_str(), this_acl->path.c_str(), http->GetIP().c_str(), entry.c_str());
+ BlockAccess(http, 403);
+ return false;
+ }
+ }
+ }
+ if (!this_acl->whitelist.empty())
+ {
+ /* Whitelist */
+ irc::commasepstream sep(this_acl->whitelist);
+ std::string entry;
+ bool allow_access = false;
- //if ((http->GetURI() == "/stats") || (http->GetURI() == "/stats/"))
- //{
- /* Send the document back to m_httpd */
- // HTTPDocument response(http->sock, &data, 200);
- // response.headers.SetHeader("X-Powered-By", "m_httpd_stats.so");
- // response.headers.SetHeader("Content-Type", "text/xml");
- // Request req((char*)&response, (Module*)this, event->GetSource());
- // req.Send();
- //}
- }
- }
+ while (sep.GetToken(entry))
+ {
+ if (InspIRCd::Match(http->GetIP(), entry, ascii_case_insensitive_map))
+ allow_access = true;
+ }
- const char* OnRequest(Request* request)
- {
- return NULL;
+ if (!allow_access)
+ {
+ ServerInstance->Logs->Log(MODNAME, LOG_DEBUG, "Denying access to whitelisted resource %s (matched by pattern %s) from ip %s (Not in whitelist)",
+ http->GetPath().c_str(), this_acl->path.c_str(), http->GetIP().c_str());
+ BlockAccess(http, 403);
+ return false;
+ }
+ }
+ if (!this_acl->password.empty() && !this_acl->username.empty())
+ {
+ /* Password auth, first look to see if we have a basic authentication header */
+ ServerInstance->Logs->Log(MODNAME, LOG_DEBUG, "Checking HTTP auth password for resource %s (matched by pattern %s) from ip %s, against username %s",
+ http->GetPath().c_str(), this_acl->path.c_str(), http->GetIP().c_str(), this_acl->username.c_str());
+
+ if (http->headers->IsSet("Authorization"))
+ {
+ /* Password has been given, validate it */
+ std::string authorization = http->headers->GetHeader("Authorization");
+ irc::spacesepstream sep(authorization);
+ std::string authtype;
+ std::string base64;
+
+ sep.GetToken(authtype);
+ if (authtype == "Basic")
+ {
+ std::string user;
+ std::string pass;
+
+ sep.GetToken(base64);
+ std::string userpass = Base64ToBin(base64);
+ ServerInstance->Logs->Log(MODNAME, LOG_DEBUG, "HTTP authorization: %s (%s)", userpass.c_str(), base64.c_str());
+
+ irc::sepstream userpasspair(userpass, ':');
+ if (userpasspair.GetToken(user))
+ {
+ userpasspair.GetToken(pass);
+
+ /* Access granted if username and password are correct */
+ if (user == this_acl->username && pass == this_acl->password)
+ {
+ ServerInstance->Logs->Log(MODNAME, LOG_DEBUG, "HTTP authorization: password and username match");
+ return true;
+ }
+ else
+ {
+ /* Invalid password */
+ ServerInstance->Logs->Log(MODNAME, LOG_DEBUG, "HTTP authorization: password and username do not match");
+ BlockAccess(http, 401, "WWW-Authenticate", "Basic realm=\"Restricted Object\"");
+ }
+ }
+ else
+ {
+ /* Malformed user:pass pair */
+ ServerInstance->Logs->Log(MODNAME, LOG_DEBUG, "HTTP authorization: password and username malformed");
+ BlockAccess(http, 401, "WWW-Authenticate", "Basic realm=\"Restricted Object\"");
+ }
+ }
+ else
+ {
+ /* Unsupported authentication type */
+ ServerInstance->Logs->Log(MODNAME, LOG_DEBUG, "HTTP authorization: unsupported auth type: %s", authtype.c_str());
+ BlockAccess(http, 401, "WWW-Authenticate", "Basic realm=\"Restricted Object\"");
+ }
+ }
+ else
+ {
+ /* No password given at all, access denied */
+ ServerInstance->Logs->Log(MODNAME, LOG_DEBUG, "HTTP authorization: password and username not sent");
+ BlockAccess(http, 401, "WWW-Authenticate", "Basic realm=\"Restricted Object\"");
+ }
+ return false;
+ }
+
+ /* A path may only match one ACL (the first it finds in the config file) */
+ break;
+ }
+ }
+ }
+ return true;
}
- virtual ~ModuleHTTPAccessList()
+ ModResult OnHTTPACLCheck(HTTPRequest& req) CXX11_OVERRIDE
{
+ if (IsAccessAllowed(&req))
+ return MOD_RES_PASSTHRU;
+ return MOD_RES_DENY;
}
- virtual Version GetVersion()
+ Version GetVersion() CXX11_OVERRIDE
{
- return Version(1, 2, 0, 0, VF_VENDOR, API_VERSION);
+ return Version("Allows the server administrator to control who can access resources served over HTTP with the httpd module.", VF_VENDOR);
}
};
projects / user / henk / code / inspircd.git / blobdiff