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#include <cgicc/HTTPRedirectHeader.h>

#include "users.h"

#include "wiki.h"



using cgicc::HTTPRedirectHeader;

using cgicc::HTTPCookie;

using namespace dbixx;



namespace apps {



users::users(wiki &w) :	master(w)

{

	wi.url_next.add("^/login/?$",

		boost::bind(&users::login,this));

	disable_reg=app.config.lval("wikipp.disable_registration",1);

	if(!disable_reg){

		wi.url_next.add("^/register/?$",

			boost::bind(&users::new_user,this));

	}

	on_start.connect(boost::bind(&users::reset,this));

	reset();

}



void users::new_user()

{

	data::new_user c(&wi);

	if(env->getRequestMethod()=="POST") {

		c.form.load(*cgi);

		transaction tr(sql);

		if(c.form.validate()) {

			sql<<	"INSERT INTO users(username,password) "

				"VALUES(?,?)",

				c.form.username.get(),

				c.form.password1.get(),

				exec();

			tr.commit();

			wi.page.redirect(locale);

			wi.set_cookies(c.form.username.get(),c.form.password1.get(),3600*7*24);

			return;

		}

		tr.commit();

	}

	ini(c);

	render("new_user",c);

}



void users::reset()

{

	auth_done=auth_ok=false;

}



string users::login_url()

{

	return wi.root()+"/login/";

}



bool users::user_exists(string u)

{

	sql<<"SELECT id FROM users WHERE username=?",u;

	row r;

	return sql.single(r);

}



void users::login()

{

	data::login c(&wi);

	int time=3600*24*7;

	if(env->getRequestMethod()=="POST") {

		c.form.load(*cgi);

		if(c.form.validate()) {

			wi.page.redirect(locale);

			wi.set_cookies(c.form.username.get(),c.form.password.get(),time);

			return;

		}

	}

	else {

		if(auth()) {

			set_header(new HTTPRedirectHeader(env->getReferrer()));

			add_header("Status: 302 Found");

			wi.set_cookies("","",-1);

			return;

		}

	}

	ini(c);

	if(!disable_reg)

		c.new_user=wi.root()+"/register/";

	render("login",c);

}



bool users::check_login(string u,string p)

{

	if(u.empty() || p.empty())

		return false;

	sql<<	"SELECT password FROM users "

		"WHERE username=?",u;

	row r;

	if(!sql.single(r) ) {

		return false;

	}

	string pass;

	r>>pass;

	if(p!=pass)

		return false;

	return true;

}



bool users::auth()

{

	if(!auth_done)

		do_auth();

	return auth_ok;

}



void users::do_auth()

{

	string tmp_username;

	string tmp_password;



	string cookie=app.config.sval("wikipp.cookie_id","");

	const vector<HTTPCookie> &cookies = env->getCookieList();

	unsigned i;

	for(i=0;i!=cookies.size();i++) {

		if(cookies[i].getName()==cookie + "username") {

			tmp_username=cookies[i].getValue();

		}

		else if(cookies[i].getName()==cookie + "password") {

			tmp_password=cookies[i].getValue();

		}

	}

	auth_ok=check_login(tmp_username,tmp_password);

	if(auth_ok)

		username=tmp_username;

	else

		username=env->getRemoteAddr();

}



void users::error_forbidden()

{

	set_header(new HTTPRedirectHeader(login_url()));

	add_header("Status: 302 Found");

}





}
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