amxmodx/dlls/geoip/geoip_util.cpp
2015-01-06 22:36:14 +01:00

219 lines
4.3 KiB
C++

// vim: set ts=4 sw=4 tw=99 noet:
//
// AMX Mod X, based on AMX Mod by Aleksander Naszko ("OLO").
// Copyright (C) The AMX Mod X Development Team.
//
// This software is licensed under the GNU General Public License, version 3 or higher.
// Additional exceptions apply. For full license details, see LICENSE.txt or visit:
// https://alliedmods.net/amxmodx-license
//
// GeoIP Module
//
#include "geoip_util.h"
#include "geoip_natives.h"
char *stripPort(char *ip)
{
char *tmp = strchr(ip, ':');
if (tmp)
{
*tmp = '\0';
}
return ip;
}
const char* stristr(const char* str, const char* substr)
{
register char *needle = (char *)substr;
register char *prevloc = (char *)str;
register char *haystack = (char *)str;
while (*haystack)
{
if (tolower(*haystack) == tolower(*needle))
{
haystack++;
if (!*++needle)
{
return prevloc;
}
}
else
{
haystack = ++prevloc;
needle = (char *)substr;
}
}
return NULL;
}
bool lookupByIp(const char *ip, const char **path, MMDB_entry_data_s *result)
{
int gai_error = 0, mmdb_error = 0;
MMDB_lookup_result_s lookup = MMDB_lookup_string(&HandleDB, ip, &gai_error, &mmdb_error);
if (gai_error != 0 || mmdb_error != MMDB_SUCCESS || !lookup.found_entry)
{
return false;
}
MMDB_entry_data_s entry_data;
MMDB_aget_value(&lookup.entry, &entry_data, path);
if (!entry_data.has_data)
{
size_t i = 0;
// Dirty fall back to default language ("en") in case provided user's language is not localized.
// Searh "names" position.
while (path[i] && strcmp(path[i++], "names"));
// No localized entry or we use already default language.
if (!path[i] || !strcmp(path[i], "en"))
{
return false;
}
// Overwrite user's language.
path[i] = "en";
// Try again.
gai_error = mmdb_error = 0;
MMDB_aget_value(&lookup.entry, &entry_data, path);
if (!entry_data.has_data)
{
return false;
}
}
*result = entry_data;
return true;
}
const char *lookupString(const char *ip, const char **path, int *length)
{
static char buffer[256]; // This should be large enough for long name in UTF-8.
MMDB_entry_data_s result;
if (!lookupByIp(ip, path, &result))
{
return NULL;
}
// Let's avoid a crash in case we go over the buffer size.
size_t maxLength = ke::Min((size_t)result.data_size, sizeof(buffer)-1);
// Strings from database are not null terminated.
memcpy(buffer, result.utf8_string, maxLength);
buffer[maxLength] = '\0';
if (length)
{
*length = maxLength;
}
return buffer;
}
double lookupDouble(const char *ip, const char **path)
{
MMDB_entry_data_s result;
if (!lookupByIp(ip, path, &result))
{
return 0;
}
return result.double_value;
}
int getContinentId(const char *code)
{
#define CONTINENT_UNKNOWN 0
#define CONTINENT_AFRICA 1
#define CONTINENT_ANTARCTICA 2
#define CONTINENT_ASIA 3
#define CONTINENT_EUROPE 4
#define CONTINENT_NORTH_AMERICA 5
#define CONTINENT_OCEANIA 6
#define CONTINENT_SOUTH_AMERICA 7
int index = CONTINENT_UNKNOWN;
if (code)
{
switch (code[0])
{
case 'A':
{
switch (code[1])
{
case 'F': index = CONTINENT_AFRICA; break;
case 'N': index = CONTINENT_ANTARCTICA; break;
case 'S': index = CONTINENT_ASIA; break;
}
break;
}
case 'E': index = CONTINENT_EUROPE; break;
case 'O': index = CONTINENT_OCEANIA; break;
case 'N': index = CONTINENT_NORTH_AMERICA; break;
case 'S': index = CONTINENT_SOUTH_AMERICA; break;
}
}
return index;
}
const char *getLang(int playerIndex)
{
static cvar_t *amxmodx_language = NULL;
static cvar_t *amxmodx_cl_langs = NULL;
if (!amxmodx_language)
amxmodx_language = CVAR_GET_POINTER("amx_language");
if (!amxmodx_cl_langs)
amxmodx_cl_langs = CVAR_GET_POINTER("amx_client_languages");
if (playerIndex >= 0 && amxmodx_cl_langs && amxmodx_language)
{
const char *value;
const char *lang;
if (playerIndex == 0 || amxmodx_cl_langs->value <= 0 || !MF_IsPlayerIngame(playerIndex))
{
value = amxmodx_language->string;
}
else
{
value = ENTITY_KEYVALUE(MF_GetPlayerEdict(playerIndex), "lang");
}
if (value && *value)
{
for (size_t i = 0; i < LangList.length(); ++i)
{
lang = LangList.at(i).chars();
if (stristr(lang, value) != NULL)
{
return lang;
}
}
}
}
return "en";
}