index : minetest.git	gpcf lifo-fixes release
	modified minetest for gpcfs purposes	gpcf

summaryrefslogtreecommitdiff

log msg author committer range

path: root/fonts/mono_dejavu_sans_120.png

	Commit message (Collapse)	Author	Age
*	Revert part of eb49009d023e6e3b5d59a97b8fb5fed5eee83296 (#5230)	Auke Kok	2017-02-16
| | | | | | | | | | | | | | | |	This reverts the removal of Droid Sans as fallback font. The license for this font used to be GPL2. I've updated the font files to Liberation 2.00, which are SIL, and do not require us to ship source code. I've attempted to fix all the attribution and license strings, and used the strings as provided by redhat for attribution to make sure they're correct. Last, I've removed a bunch of executable bits on files that do not need them. Fixes #5231
*	Compress textures and fonts	Maksim Gamarnik	2015-10-15
| | | | |	Used PNGOUT, OptiPNG and DeflOpt. Removes ~350 KB without any loss in quality.
*	Implement proper font handling	sapier	2014-11-30

generated by cgit v1.2.3 (git 2.25.1) at 2024-10-05 18:36:02 +0000

/*
Minetest
Copyright (C) 2013 celeron55, Perttu Ahola <celeron55@gmail.com>

This program is free software; you can redistribute it and/or modify
it under the terms of the GNU Lesser General Public License as published by
the Free Software Foundation; either version 2.1 of the License, or
(at your option) any later version.

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 Lesser General Public License for more details.

You should have received a copy of the GNU Lesser General Public License along
with this program; if not, write to the Free Software Foundation, Inc.,
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/

#include "lua_api/l_internal.h"
#include "common/c_converter.h"
#include "common/c_content.h"
#include "lua_api/l_http.h"
#include "httpfetch.h"
#include "settings.h"
#include "debug.h"
#include "log.h"

#include <algorithm>
#include <iomanip>
#include <cctype>

#define HTTP_API(name) \
	lua_pushstring(L, #name); \
	lua_pushcfunction(L, l_http_##name); \
	lua_settable(L, -3);

#if USE_CURL
void ModApiHttp::read_http_fetch_request(lua_State *L, HTTPFetchRequest &req)
{
	luaL_checktype(L, 1, LUA_TTABLE);

	req.caller = httpfetch_caller_alloc_secure();
	getstringfield(L, 1, "url", req.url);
	lua_getfield(L, 1, "user_agent");
	if (lua_isstring(L, -1))
		req.useragent = getstringfield_default(L, 1, "user_agent", "");
	lua_pop(L, 1);
	req.multipart = getboolfield_default(L, 1, "multipart", false);
	req.timeout = getintfield_default(L, 1, "timeout", 3) * 1000;

	// post_data: if table, post form data, otherwise raw data
	lua_getfield(L, 1, "post_data");
	if (lua_istable(L, 2)) {
		lua_pushnil(L);
		while (lua_next(L, 2) != 0)
		{
			req.post_fields[luaL_checkstring(L, -2)] = luaL_checkstring(L, -1);
			lua_pop(L, 1);
		}
	} else if (lua_isstring(L, 2)) {
		req.post_data = lua_tostring(L, 2);
	}
	lua_pop(L, 1);

	lua_getfield(L, 1, "extra_headers");
	if (lua_istable(L, 2)) {
		lua_pushnil(L);
		while (lua_next(L, 2) != 0)
		{
			const char *header = luaL_checkstring(L, -1);
			req.extra_headers.emplace_back(header);
			lua_pop(L, 1);
		}
	}
	lua_pop(L, 1);
}

void ModApiHttp::push_http_fetch_result(lua_State *L, HTTPFetchResult &res, bool completed)
{
	lua_newtable(L);
	setboolfield(L, -1, "succeeded", res.succeeded);
	setboolfield(L, -1, "timeout", res.timeout);
	setboolfield(L, -1, "completed", completed);
	setintfield(L, -1, "code", res.response_code);
	setstringfield(L, -1, "data", res.data.c_str());
}

// http_api.fetch_async(HTTPRequest definition)
int ModApiHttp::l_http_fetch_async(lua_State *L)
{
	NO_MAP_LOCK_REQUIRED;

	HTTPFetchRequest req;
	read_http_fetch_request(L, req);

	actionstream << "Mod performs HTTP request with URL " << req.url << std::endl;
	httpfetch_async(req);

	// Convert handle to hex string since lua can't handle 64-bit integers
	std::stringstream handle_conversion_stream;
	handle_conversion_stream << std::hex << req.caller;
	std::string caller_handle(handle_conversion_stream.str());

	lua_pushstring(L, caller_handle.c_str());
	return 1;
}

// http_api.fetch_async_get(handle)
int ModApiHttp::l_http_fetch_async_get(lua_State *L)
{
	NO_MAP_LOCK_REQUIRED;

	std::string handle_str = luaL_checkstring(L, 1);

	// Convert hex string back to 64-bit handle
	u64 handle;
	std::stringstream handle_conversion_stream;
	handle_conversion_stream << std::hex << handle_str;
	handle_conversion_stream >> handle;

	HTTPFetchResult res;
	bool completed = httpfetch_async_get(handle, res);

	push_http_fetch_result(L, res, completed);

	return 1;
}

int ModApiHttp::l_request_http_api(lua_State *L)
{
	NO_MAP_LOCK_REQUIRED;

	// We have to make sure that this function is being called directly by
	// a mod, otherwise a malicious mod could override this function and
	// steal its return value.
	lua_Debug info;

	// Make sure there's only one item below this function on the stack...
	if (lua_getstack(L, 2, &info)) {
		return 0;
	}
	FATAL_ERROR_IF(!lua_getstack(L, 1, &info), "lua_getstack() failed");
	FATAL_ERROR_IF(!lua_getinfo(L, "S", &info), "lua_getinfo() failed");

	// ...and that that item is the main file scope.
	if (strcmp(info.what, "main") != 0) {
		return 0;
	}

	// Mod must be listed in secure.http_mods or secure.trusted_mods
	lua_rawgeti(L, LUA_REGISTRYINDEX, CUSTOM_RIDX_CURRENT_MOD_NAME);
	if (!lua_isstring(L, -1)) {
		return 0;
	}

	const char *mod_name = lua_tostring(L, -1);
	std::string http_mods = g_settings->get("secure.http_mods");
	http_mods.erase(std::remove(http_mods.begin(), http_mods.end(), ' '), http_mods.end());
	std::vector<std::string> mod_list_http = str_split(http_mods, ',');

	std::string trusted_mods = g_settings->get("secure.trusted_mods");
	trusted_mods.erase(std::remove(trusted_mods.begin(), trusted_mods.end(), ' '), trusted_mods.end());
	std::vector<std::string> mod_list_trusted = str_split(trusted_mods, ',');

	mod_list_http.insert(mod_list_http.end(), mod_list_trusted.begin(), mod_list_trusted.end());
	if (std::find(mod_list_http.begin(), mod_list_http.end(), mod_name) == mod_list_http.end()) {
		lua_pushnil(L);
		return 1;
	}

	lua_getglobal(L, "core");
	lua_getfield(L, -1, "http_add_fetch");

	lua_newtable(L);
	HTTP_API(fetch_async);
	HTTP_API(fetch_async_get);

	// Stack now looks like this:
	// <core.http_add_fetch> <table with fetch_async, fetch_async_get>
	// Now call core.http_add_fetch to append .fetch(request, callback) to table
	lua_call(L, 1, 1);

	return 1;
}
#endif

void ModApiHttp::Initialize(lua_State *L, int top)
{
#if USE_CURL
	API_FCT(request_http_api);
#endif
}