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/* -*- mode: c++; c-basic-offset: 2; indent-tabs-mode: nil; -*-
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* vim:expandtab:shiftwidth=2:tabstop=2:smarttab:
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* Copyright (C) 2009 Sun Microsystems, Inc.
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; version 2 of the License.
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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#include <curl/curl.h>
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#include <boost/program_options.hpp>
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#include <drizzled/module/option_map.h>
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#include "drizzled/identifier.h"
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#include "drizzled/plugin/authentication.h"
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#include "drizzled/gettext.h"
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namespace po= boost::program_options;
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using namespace drizzled;
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static size_t curl_cb_read(void *ptr, size_t size, size_t nmemb, void *stream)
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return (size * nmemb);
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class Auth_http : public drizzled::plugin::Authentication
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const std::string auth_url;
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Auth_http(std::string name_arg, const std::string &url_arg) :
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drizzled::plugin::Authentication(name_arg),
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// we are trusting that plugin initializers are called singlethreaded at startup
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// if something else also calls curl_global_init() in a threadrace while we are here,
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// we will crash the server.
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curl_handle= curl_easy_init();
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// turn off curl stuff that might mess us up
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rv= curl_easy_setopt(curl_handle, CURLOPT_VERBOSE, 0);
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rv= curl_easy_setopt(curl_handle, CURLOPT_NOPROGRESS, 1);
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rv= curl_easy_setopt(curl_handle, CURLOPT_NOSIGNAL, 1);
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// do a HEAD instead of a default GET
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rv= curl_easy_setopt(curl_handle, CURLOPT_NOBODY, 1);
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// set the read callback. this shouldnt get called, because we are doing a HEAD
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rv= curl_easy_setopt(curl_handle, CURLOPT_READFUNCTION, curl_cb_read);
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curl_easy_cleanup(curl_handle);
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curl_global_cleanup();
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virtual bool authenticate(const identifier::User &sctx, const string &password)
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long http_response_code;
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assert(sctx.username().c_str());
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// set the parameters: url, username, password
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rv= curl_easy_setopt(curl_handle, CURLOPT_URL, auth_url.c_str());
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#if defined(HAVE_CURLOPT_USERNAME)
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rv= curl_easy_setopt(curl_handle, CURLOPT_USERNAME,
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sctx.username().c_str());
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rv= curl_easy_setopt(curl_handle, CURLOPT_PASSWORD, password.c_str());
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string userpwd(sctx.username());
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userpwd.append(password);
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rv= curl_easy_setopt(curl_handle, CURLOPT_USERPWD, userpwd.c_str());
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#endif /* defined(HAVE_CURLOPT_USERNAME) */
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rv= curl_easy_perform(curl_handle);
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// what did we get? goes into http_response_code
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rv= curl_easy_getinfo(curl_handle, CURLINFO_RESPONSE_CODE, &http_response_code);
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// so here is an interesting question.
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// return true if the response_code is 2XX, or return false if its 4XX
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// for now, return false for 401, true otherwise
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// this means that if the url breaks, then anyone can log in
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// this might be the wrong thing
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if (http_response_code == 401)
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Auth_http* auth= NULL;
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static int initialize(drizzled::module::Context &context)
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const module::option_map &vm= context.getOptions();
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* Per libcurl manual, in multi-threaded applications, curl_global_init() should
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* be called *before* curl_easy_init()...which is called in Auto_http's
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if (curl_global_init(CURL_GLOBAL_NOTHING) != 0)
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const string auth_url(vm["url"].as<string>());
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if (auth_url.size() == 0)
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errmsg_printf(error::ERROR,
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_("auth_http plugin loaded but required option url not "
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"specified. Against which URL are you intending on "
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"authenticating?\n"));
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auth= new Auth_http("auth_http", auth_url);
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context.registerVariable(new sys_var_const_string_val("url", auth_url));
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static void init_options(drizzled::module::option_context &context)
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context("url", po::value<string>()->default_value(""),
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N_("URL for HTTP Auth check"));
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DRIZZLE_DECLARE_PLUGIN
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"HTTP based authenication.",
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initialize, /* Plugin Init */
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init_options /* config options */
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DRIZZLE_DECLARE_PLUGIN_END;