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CHANGELOG
=========
1.10.1 (2021-04-14)
-------------------
* Fix a `TypeError` exception in the pure PHP reader when using large
databases on 32-bit PHP builds with the `bcmath` extension. Reported
by dodo1708. GitHub #124.
1.10.0 (2021-02-09)
-------------------
* When using the pure PHP reader, unsigned integers up to PHP_MAX_INT
will now be integers in PHP rather than strings. Previously integers
greater than 2^24 on 32-bit platforms and 2^56 on 64-bit platforms
would be strings due to the use of `gmp` or `bcmath` to decode them.
Reported by Alejandro Celaya. GitHub #119.
1.9.0 (2021-01-07)
------------------
* The `maxminddb` extension is now buildable on Windows. Pull request
by Jan Ehrhardt. GitHub #115.
1.8.0 (2020-10-01)
------------------
* Fixes for PHP 8.0. Pull Request by Remi Collet. GitHub #108.
1.7.0 (2020-08-07)
------------------
* IMPORTANT: PHP 7.2 or greater is now required.
* The extension no longer depends on the pure PHP classes in
`maxmind-db/reader`. You can use it independently.
* Type hints have been added to both the pure PHP implementation
and the extension.
* The `metadata` method on the reader now returns a new copy of the
metadata object rather than the actual object used by the reader.
* Work around PHP `is_readable()` bug. Reported by Ben Roberts. GitHub
#92.
* This is the first release of the extension as a PECL package.
GitHub #34.
1.6.0 (2019-12-19)
------------------
* 1.5.0 and 1.5.1 contained a possible memory corruptions when using
`getWithPrefixLen`. This has been fixed. Reported by proton-ab.
GitHub #96.
* The `composer.json` file now conflicts with all versions of the
`maxminddb` C extension less than the Composer version. This is to
reduce the chance of having an older, conflicting version of the
extension installed. You will need to upgrade the extension before
running `composer update`. Pull request by Benoît Burnichon. GitHub
#97.
1.5.1 (2019-12-12)
------------------
* Minor performance improvements.
* Make tests pass with older versions of libmaxminddb. PR by Remi
Collet. GitHub #90.
* Test enhancements. PR by Chun-Sheng, Li. GitHub #91.
1.5.0 (2019-09-30)
------------------
* PHP 5.6 or greater is now required.
* The C extension now supports PHP 8. Pull request by John Boehr.
GitHub #87.
* A new method, `getWithPrefixLen`, was added to the `Reader` class.
This method returns an array containing the record and the prefix
length for that record. GitHub #89.
1.4.1 (2019-01-04)
------------------
* The `maxminddb` extension now returns a string when a `uint32`
value is greater than `LONG_MAX`. Previously, the value would
overflow. This generally only affects 32-bit machines. Reported
by Remi Collet. GitHub #79.
* For `uint64` values, the `maxminddb` extension now returns an
integer rather than a string when the value is less than or equal
to `LONG_MAX`. This more closely matches the behavior of the pure
PHP reader.
1.4.0 (2018-11-20)
------------------
* The `maxminddb` extension now has the arginfo when using reflection.
PR by Remi Collet. GitHub #75.
* The `maxminddb` extension now provides `MINFO()` function that
displays the extension version and the libmaxminddb version. PR by
Remi Collet. GitHub #74.
* The `maxminddb` `configure` script now uses `pkg-config` when
available to get libmaxmindb build info. PR by Remi Collet.
GitHub #73.
* The pure PHP reader now correctly decodes integers on 32-bit platforms.
Previously, large integers would overflow. Reported by Remi Collet.
GitHub #77.
* There are small performance improvements for the pure PHP reader.
1.3.0 (2018-02-21)
------------------
* IMPORTANT: The `maxminddb` extension now obeys `open_basedir`. If
`open_basedir` is set, you _must_ store the database within the
specified directory. Placing the file outside of this directory
will result in an exception. Please test your integration before
upgrading the extension. This does not affect the pure PHP
implementation, which has always had this restriction. Reported
by Benoît Burnichon. GitHub #61.
* A custom `autoload.php` file is provided for installations without
Composer. GitHub #56.
1.2.0 (2017-10-27)
------------------
* PHP 5.4 or greater is now required.
* The `Reader` class for the `maxminddb` extension is no longer final.
This was change to match the behavior of the pure PHP class.
Reported and fixed by venyii. GitHub #52 & #54.
1.1.3 (2017-01-19)
------------------
* Fix incorrect version in `ext/php_maxminddb.h`. GitHub #48.
1.1.2 (2016-11-22)
------------------
* Searching for database metadata only occurs within the last 128KB
(128 * 1024 bytes) of the file, speeding detection of corrupt
datafiles. Reported by Eric Teubert. GitHub #42.
* Suggest relevant extensions when installing with Composer. GitHub #37.
1.1.1 (2016-09-15)
------------------
* Development files were added to the `.gitattributes` as `export-ignore` so
that they are not part of the Composer release. Pull request by Michele
Locati. GitHub #39.
1.1.0 (2016-01-04)
------------------
* The MaxMind DB extension now supports PHP 7. Pull request by John Boehr.
GitHub #27.
1.0.3 (2015-03-13)
------------------
* All uses of `strlen` were removed. This should prevent issues in situations
where the function is overloaded or otherwise broken.
1.0.2 (2015-01-19)
------------------
* Previously the MaxMind DB extension would cause a segfault if the Reader
object's destructor was called without first having called the constructor.
(Reported by Matthias Saou & Juan Peri. GitHub #20.)
1.0.1 (2015-01-12)
------------------
* In the last several releases, the version number in the extension was
incorrect. This release is being done to correct it. No other code changes
are included.
1.0.0 (2014-09-22)
------------------
* First production release.
* In the pure PHP reader, a string length test after `fread()` was replaced
with the difference between the start pointer and the end pointer. This
provided a 15% speed increase.
0.3.3 (2014-09-15)
------------------
* Clarified behavior of 128-bit type in documentation.
* Updated phpunit and fixed some test breakage from the newer version.
0.3.2 (2014-09-10)
------------------
* Fixed invalid reference to global class RuntimeException from namespaced
code. Fixed by Steven Don. GitHub issue #15.
* Additional documentation of `Metadata` class as well as misc. documentation
cleanup.
0.3.1 (2014-05-01)
------------------
* The API now works when `mbstring.func_overload` is set.
* BCMath is no longer required. If the decoder encounters a big integer,
it will try to use GMP and then BCMath. If both of those fail, it will
throw an exception. No databases released by MaxMind currently use big
integers.
* The API now officially supports HHVM when using the pure PHP reader.
0.3.0 (2014-02-19)
------------------
* This API is now licensed under the Apache License, Version 2.0.
* The code for the C extension was cleaned up, fixing several potential
issues.
0.2.0 (2013-10-21)
------------------
* Added optional C extension for using libmaxminddb in place of the pure PHP
reader.
* Significantly improved error handling in pure PHP reader.
* Improved performance for IPv4 lookups in an IPv6 database.
0.1.0 (2013-07-16)
------------------
* Initial release

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# MaxMind DB Reader PHP API #
## Description ##
This is the PHP API for reading MaxMind DB files. MaxMind DB is a binary file
format that stores data indexed by IP address subnets (IPv4 or IPv6).
## Installation (Composer) ##
We recommend installing this package with [Composer](https://getcomposer.org/).
### Download Composer ###
To download Composer, run in the root directory of your project:
```bash
curl -sS https://getcomposer.org/installer | php
```
You should now have the file `composer.phar` in your project directory.
### Install Dependencies ###
Run in your project root:
```
php composer.phar require maxmind-db/reader:~1.0
```
You should now have the files `composer.json` and `composer.lock` as well as
the directory `vendor` in your project directory. If you use a version control
system, `composer.json` should be added to it.
### Require Autoloader ###
After installing the dependencies, you need to require the Composer autoloader
from your code:
```php
require 'vendor/autoload.php';
```
## Installation (Standalone) ##
If you don't want to use Composer for some reason, a custom
`autoload.php` is provided for you in the project root. To use the
library, simply include that file,
```php
require('/path/to/MaxMind-DB-Reader-php/autoload.php');
```
and then instantiate the reader class normally:
```php
use MaxMind\Db\Reader;
$reader = new Reader('example.mmdb');
```
## Installation (RPM)
RPMs are available in the [official Fedora repository](https://apps.fedoraproject.org/packages/php-maxminddb).
To install on Fedora, run:
```bash
dnf install php-maxminddb
```
To install on CentOS or RHEL 7, first [enable the EPEL repository](https://fedoraproject.org/wiki/EPEL)
and then run:
```bash
yum install php-maxminddb
```
Please note that these packages are *not* maintained by MaxMind.
## Usage ##
## Example ##
```php
<?php
require_once 'vendor/autoload.php';
use MaxMind\Db\Reader;
$ipAddress = '24.24.24.24';
$databaseFile = 'GeoIP2-City.mmdb';
$reader = new Reader($databaseFile);
// get returns just the record for the IP address
print_r($reader->get($ipAddress));
// getWithPrefixLen returns an array containing the record and the
// associated prefix length for that record.
print_r($reader->getWithPrefixLen($ipAddress));
$reader->close();
```
## Optional PHP C Extension ##
MaxMind provides an optional C extension that is a drop-in replacement for
`MaxMind\Db\Reader`. In order to use this extension, you must install the
Reader API as described above and install the extension as described below. If
you are using an autoloader, no changes to your code should be necessary.
### Installing Extension ###
First install [libmaxminddb](https://github.com/maxmind/libmaxminddb) as
described in its [README.md
file](https://github.com/maxmind/libmaxminddb/blob/main/README.md#installing-from-a-tarball).
After successfully installing libmaxmindb, you may install the extension
from [pecl](https://pecl.php.net/package/maxminddb):
```
pecl install maxminddb
```
Alternatively, you may install it from the source. To do so, run the following
commands from the top-level directory of this distribution:
```
cd ext
phpize
./configure
make
make test
sudo make install
```
You then must load your extension. The recommend method is to add the
following to your `php.ini` file:
```
extension=maxminddb.so
```
Note: You may need to install the PHP development package on your OS such as
php5-dev for Debian-based systems or php-devel for RedHat/Fedora-based ones.
## 128-bit Integer Support ##
The MaxMind DB format includes 128-bit unsigned integer as a type. Although
no MaxMind-distributed database currently makes use of this type, both the
pure PHP reader and the C extension support this type. The pure PHP reader
requires gmp or bcmath to read databases with 128-bit unsigned integers.
The integer is currently returned as a hexadecimal string (prefixed with "0x")
by the C extension and a decimal string (no prefix) by the pure PHP reader.
Any change to make the reader implementations always return either a
hexadecimal or decimal representation of the integer will NOT be considered a
breaking change.
## Support ##
Please report all issues with this code using the [GitHub issue tracker](https://github.com/maxmind/MaxMind-DB-Reader-php/issues).
If you are having an issue with a MaxMind service that is not specific to the
client API, please see [our support page](https://www.maxmind.com/en/support).
## Requirements ##
This library requires PHP 7.2 or greater.
The GMP or BCMath extension may be required to read some databases
using the pure PHP API.
## Contributing ##
Patches and pull requests are encouraged. All code should follow the PSR-1 and
PSR-2 style guidelines. Please include unit tests whenever possible.
## Versioning ##
The MaxMind DB Reader PHP API uses [Semantic Versioning](https://semver.org/).
## Copyright and License ##
This software is Copyright (c) 2014-2020 by MaxMind, Inc.
This is free software, licensed under the Apache License, Version 2.0.

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<?php
declare(strict_types=1);
/**
* PSR-4 autoloader implementation for the MaxMind\DB namespace.
* First we define the 'mmdb_autoload' function, and then we register
* it with 'spl_autoload_register' so that PHP knows to use it.
*
* @param mixed $class
*/
/**
* Automatically include the file that defines <code>class</code>.
*
* @param string $class
* the name of the class to load
*/
function mmdb_autoload($class): void
{
/*
* A project-specific mapping between the namespaces and where
* they're located. By convention, we include the trailing
* slashes. The one-element array here simply makes things easy
* to extend in the future if (for example) the test classes
* begin to use one another.
*/
$namespace_map = ['MaxMind\\Db\\' => __DIR__ . '/src/MaxMind/Db/'];
foreach ($namespace_map as $prefix => $dir) {
// First swap out the namespace prefix with a directory...
$path = str_replace($prefix, $dir, $class);
// replace the namespace separator with a directory separator...
$path = str_replace('\\', '/', $path);
// and finally, add the PHP file extension to the result.
$path = $path . '.php';
// $path should now contain the path to a PHP file defining $class
if (file_exists($path)) {
include $path;
}
}
}
spl_autoload_register('mmdb_autoload');

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{
"name": "maxmind-db/reader",
"description": "MaxMind DB Reader API",
"keywords": ["database", "geoip", "geoip2", "geolocation", "maxmind"],
"homepage": "https://github.com/maxmind/MaxMind-DB-Reader-php",
"type": "library",
"license": "Apache-2.0",
"authors": [
{
"name": "Gregory J. Oschwald",
"email": "goschwald@maxmind.com",
"homepage": "https://www.maxmind.com/"
}
],
"require": {
"php": ">=7.2"
},
"suggest": {
"ext-bcmath": "bcmath or gmp is required for decoding larger integers with the pure PHP decoder",
"ext-gmp": "bcmath or gmp is required for decoding larger integers with the pure PHP decoder",
"ext-maxminddb": "A C-based database decoder that provides significantly faster lookups"
},
"conflict": {
"ext-maxminddb": "<1.10.1,>=2.0.0"
},
"require-dev": {
"friendsofphp/php-cs-fixer": "*",
"phpunit/phpunit": ">=8.0.0,<10.0.0",
"php-coveralls/php-coveralls": "^2.1",
"phpunit/phpcov": ">=6.0.0",
"squizlabs/php_codesniffer": "3.*",
"phpstan/phpstan": "*"
},
"autoload": {
"psr-4": {
"MaxMind\\Db\\": "src/MaxMind/Db"
}
},
"autoload-dev": {
"psr-4": {
"MaxMind\\Db\\Test\\Reader\\": "tests/MaxMind/Db/Test/Reader"
}
}
}

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PHP_ARG_WITH(maxminddb,
[Whether to enable the MaxMind DB Reader extension],
[ --with-maxminddb Enable MaxMind DB Reader extension support])
PHP_ARG_ENABLE(maxminddb-debug, for MaxMind DB debug support,
[ --enable-maxminddb-debug Enable enable MaxMind DB deubg support], no, no)
if test $PHP_MAXMINDDB != "no"; then
AC_PATH_PROG(PKG_CONFIG, pkg-config, no)
AC_MSG_CHECKING(for libmaxminddb)
if test -x "$PKG_CONFIG" && $PKG_CONFIG --exists libmaxminddb; then
dnl retrieve build options from pkg-config
if $PKG_CONFIG libmaxminddb --atleast-version 1.0.0; then
LIBMAXMINDDB_INC=`$PKG_CONFIG libmaxminddb --cflags`
LIBMAXMINDDB_LIB=`$PKG_CONFIG libmaxminddb --libs`
LIBMAXMINDDB_VER=`$PKG_CONFIG libmaxminddb --modversion`
AC_MSG_RESULT(found version $LIBMAXMINDDB_VER)
else
AC_MSG_ERROR(system libmaxminddb must be upgraded to version >= 1.0.0)
fi
PHP_EVAL_LIBLINE($LIBMAXMINDDB_LIB, MAXMINDDB_SHARED_LIBADD)
PHP_EVAL_INCLINE($LIBMAXMINDDB_INC)
else
AC_MSG_RESULT(pkg-config information missing)
AC_MSG_WARN(will use libmaxmxinddb from compiler default path)
PHP_CHECK_LIBRARY(maxminddb, MMDB_open)
PHP_ADD_LIBRARY(maxminddb, 1, MAXMINDDB_SHARED_LIBADD)
fi
if test $PHP_MAXMINDDB_DEBUG != "no"; then
CFLAGS="$CFLAGS -Wall -Wextra -Wno-unused-parameter -Wno-missing-field-initializers -Werror"
fi
PHP_SUBST(MAXMINDDB_SHARED_LIBADD)
PHP_NEW_EXTENSION(maxminddb, maxminddb.c, $ext_shared)
fi

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ARG_WITH("maxminddb", "Enable MaxMind DB Reader extension support", "no");
if (PHP_MAXMINDDB == "yes") {
if (CHECK_HEADER_ADD_INCLUDE("maxminddb.h", "CFLAGS_MAXMINDDB", PHP_MAXMINDDB + ";" + PHP_PHP_BUILD + "\\include\\maxminddb") &&
CHECK_LIB("libmaxminddb.lib", "maxminddb", PHP_MAXMINDDB)) {
EXTENSION("maxminddb", "maxminddb.c");
} else {
WARNING('Could not find maxminddb.h or libmaxminddb.lib; skipping');
}
}

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/* MaxMind, Inc., licenses this file to you under the Apache License, Version
* 2.0 (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
* License for the specific language governing permissions and limitations
* under the License.
*/
#include "php_maxminddb.h"
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include <php.h>
#include <zend.h>
#include "Zend/zend_exceptions.h"
#include "Zend/zend_types.h"
#include "ext/spl/spl_exceptions.h"
#include "ext/standard/info.h"
#include <maxminddb.h>
#ifdef ZTS
#include <TSRM.h>
#endif
#define __STDC_FORMAT_MACROS
#include <inttypes.h>
#define PHP_MAXMINDDB_NS ZEND_NS_NAME("MaxMind", "Db")
#define PHP_MAXMINDDB_READER_NS ZEND_NS_NAME(PHP_MAXMINDDB_NS, "Reader")
#define PHP_MAXMINDDB_METADATA_NS \
ZEND_NS_NAME(PHP_MAXMINDDB_READER_NS, "Metadata")
#define PHP_MAXMINDDB_READER_EX_NS \
ZEND_NS_NAME(PHP_MAXMINDDB_READER_NS, "InvalidDatabaseException")
#define Z_MAXMINDDB_P(zv) php_maxminddb_fetch_object(Z_OBJ_P(zv))
typedef size_t strsize_t;
typedef zend_object free_obj_t;
/* For PHP 8 compatibility */
#if PHP_VERSION_ID < 80000
#define PROP_OBJ(zv) (zv)
#else
#define PROP_OBJ(zv) Z_OBJ_P(zv)
#define TSRMLS_C
#define TSRMLS_CC
#define TSRMLS_DC
/* End PHP 8 compatibility */
#endif
#ifndef ZEND_ACC_CTOR
#define ZEND_ACC_CTOR 0
#endif
/* IS_MIXED was added in 2020 */
#ifndef IS_MIXED
#define IS_MIXED IS_UNDEF
#endif
typedef struct _maxminddb_obj {
MMDB_s *mmdb;
zend_object std;
} maxminddb_obj;
PHP_FUNCTION(maxminddb);
static int
get_record(INTERNAL_FUNCTION_PARAMETERS, zval *record, int *prefix_len);
static const MMDB_entry_data_list_s *
handle_entry_data_list(const MMDB_entry_data_list_s *entry_data_list,
zval *z_value TSRMLS_DC);
static const MMDB_entry_data_list_s *
handle_array(const MMDB_entry_data_list_s *entry_data_list,
zval *z_value TSRMLS_DC);
static const MMDB_entry_data_list_s *
handle_map(const MMDB_entry_data_list_s *entry_data_list,
zval *z_value TSRMLS_DC);
static void handle_uint128(const MMDB_entry_data_list_s *entry_data_list,
zval *z_value TSRMLS_DC);
static void handle_uint64(const MMDB_entry_data_list_s *entry_data_list,
zval *z_value TSRMLS_DC);
static void handle_uint32(const MMDB_entry_data_list_s *entry_data_list,
zval *z_value TSRMLS_DC);
#define CHECK_ALLOCATED(val) \
if (!val) { \
zend_error(E_ERROR, "Out of memory"); \
return; \
}
static zend_object_handlers maxminddb_obj_handlers;
static zend_class_entry *maxminddb_ce, *maxminddb_exception_ce, *metadata_ce;
static inline maxminddb_obj *
php_maxminddb_fetch_object(zend_object *obj TSRMLS_DC) {
return (maxminddb_obj *)((char *)(obj)-XtOffsetOf(maxminddb_obj, std));
}
ZEND_BEGIN_ARG_INFO_EX(arginfo_maxminddbreader_construct, 0, 0, 1)
ZEND_ARG_TYPE_INFO(0, db_file, IS_STRING, 0)
ZEND_END_ARG_INFO()
PHP_METHOD(MaxMind_Db_Reader, __construct) {
char *db_file = NULL;
strsize_t name_len;
zval *_this_zval = NULL;
if (zend_parse_method_parameters(ZEND_NUM_ARGS() TSRMLS_CC,
getThis(),
"Os",
&_this_zval,
maxminddb_ce,
&db_file,
&name_len) == FAILURE) {
return;
}
if (0 != php_check_open_basedir(db_file TSRMLS_CC) ||
0 != access(db_file, R_OK)) {
zend_throw_exception_ex(
spl_ce_InvalidArgumentException,
0 TSRMLS_CC,
"The file \"%s\" does not exist or is not readable.",
db_file);
return;
}
MMDB_s *mmdb = (MMDB_s *)ecalloc(1, sizeof(MMDB_s));
uint16_t status = MMDB_open(db_file, MMDB_MODE_MMAP, mmdb);
if (MMDB_SUCCESS != status) {
zend_throw_exception_ex(
maxminddb_exception_ce,
0 TSRMLS_CC,
"Error opening database file (%s). Is this a valid "
"MaxMind DB file?",
db_file);
efree(mmdb);
return;
}
maxminddb_obj *mmdb_obj = Z_MAXMINDDB_P(getThis());
mmdb_obj->mmdb = mmdb;
}
ZEND_BEGIN_ARG_WITH_RETURN_TYPE_INFO_EX(
arginfo_maxminddbreader_get, 0, 1, IS_MIXED, 1)
ZEND_ARG_TYPE_INFO(0, ip_address, IS_STRING, 0)
ZEND_END_ARG_INFO()
PHP_METHOD(MaxMind_Db_Reader, get) {
int prefix_len = 0;
get_record(INTERNAL_FUNCTION_PARAM_PASSTHRU, return_value, &prefix_len);
}
ZEND_BEGIN_ARG_WITH_RETURN_TYPE_INFO_EX(
arginfo_maxminddbreader_getWithPrefixLen, 0, 1, IS_ARRAY, 1)
ZEND_ARG_TYPE_INFO(0, ip_address, IS_STRING, 0)
ZEND_END_ARG_INFO()
PHP_METHOD(MaxMind_Db_Reader, getWithPrefixLen) {
zval record, z_prefix_len;
int prefix_len = 0;
if (get_record(INTERNAL_FUNCTION_PARAM_PASSTHRU, &record, &prefix_len) ==
FAILURE) {
return;
}
array_init(return_value);
add_next_index_zval(return_value, &record);
ZVAL_LONG(&z_prefix_len, prefix_len);
add_next_index_zval(return_value, &z_prefix_len);
}
static int
get_record(INTERNAL_FUNCTION_PARAMETERS, zval *record, int *prefix_len) {
char *ip_address = NULL;
strsize_t name_len;
zval *this_zval = NULL;
if (zend_parse_method_parameters(ZEND_NUM_ARGS() TSRMLS_CC,
getThis(),
"Os",
&this_zval,
maxminddb_ce,
&ip_address,
&name_len) == FAILURE) {
return FAILURE;
}
const maxminddb_obj *mmdb_obj = (maxminddb_obj *)Z_MAXMINDDB_P(getThis());
MMDB_s *mmdb = mmdb_obj->mmdb;
if (NULL == mmdb) {
zend_throw_exception_ex(spl_ce_BadMethodCallException,
0 TSRMLS_CC,
"Attempt to read from a closed MaxMind DB.");
return FAILURE;
}
struct addrinfo hints = {
.ai_family = AF_UNSPEC,
.ai_flags = AI_NUMERICHOST,
/* We set ai_socktype so that we only get one result back */
.ai_socktype = SOCK_STREAM};
struct addrinfo *addresses = NULL;
int gai_status = getaddrinfo(ip_address, NULL, &hints, &addresses);
if (gai_status) {
zend_throw_exception_ex(spl_ce_InvalidArgumentException,
0 TSRMLS_CC,
"The value \"%s\" is not a valid IP address.",
ip_address);
return FAILURE;
}
if (!addresses || !addresses->ai_addr) {
zend_throw_exception_ex(
spl_ce_InvalidArgumentException,
0 TSRMLS_CC,
"getaddrinfo was successful but failed to set the addrinfo");
return FAILURE;
}
int sa_family = addresses->ai_addr->sa_family;
int mmdb_error = MMDB_SUCCESS;
MMDB_lookup_result_s result =
MMDB_lookup_sockaddr(mmdb, addresses->ai_addr, &mmdb_error);
freeaddrinfo(addresses);
if (MMDB_SUCCESS != mmdb_error) {
zend_class_entry *ex;
if (MMDB_IPV6_LOOKUP_IN_IPV4_DATABASE_ERROR == mmdb_error) {
ex = spl_ce_InvalidArgumentException;
} else {
ex = maxminddb_exception_ce;
}
zend_throw_exception_ex(ex,
0 TSRMLS_CC,
"Error looking up %s. %s",
ip_address,
MMDB_strerror(mmdb_error));
return FAILURE;
}
*prefix_len = result.netmask;
if (sa_family == AF_INET && mmdb->metadata.ip_version == 6) {
/* We return the prefix length given the IPv4 address. If there is
no IPv4 subtree, we return a prefix length of 0. */
*prefix_len = *prefix_len >= 96 ? *prefix_len - 96 : 0;
}
if (!result.found_entry) {
ZVAL_NULL(record);
return SUCCESS;
}
MMDB_entry_data_list_s *entry_data_list = NULL;
int status = MMDB_get_entry_data_list(&result.entry, &entry_data_list);
if (MMDB_SUCCESS != status) {
zend_throw_exception_ex(maxminddb_exception_ce,
0 TSRMLS_CC,
"Error while looking up data for %s. %s",
ip_address,
MMDB_strerror(status));
MMDB_free_entry_data_list(entry_data_list);
return FAILURE;
} else if (NULL == entry_data_list) {
zend_throw_exception_ex(
maxminddb_exception_ce,
0 TSRMLS_CC,
"Error while looking up data for %s. Your database may "
"be corrupt or you have found a bug in libmaxminddb.",
ip_address);
return FAILURE;
}
const MMDB_entry_data_list_s *rv =
handle_entry_data_list(entry_data_list, record TSRMLS_CC);
if (rv == NULL) {
/* We should have already thrown the exception in handle_entry_data_list
*/
return FAILURE;
}
MMDB_free_entry_data_list(entry_data_list);
return SUCCESS;
}
ZEND_BEGIN_ARG_INFO_EX(arginfo_maxminddbreader_void, 0, 0, 0)
ZEND_END_ARG_INFO()
PHP_METHOD(MaxMind_Db_Reader, metadata) {
zval *this_zval = NULL;
if (zend_parse_method_parameters(ZEND_NUM_ARGS() TSRMLS_CC,
getThis(),
"O",
&this_zval,
maxminddb_ce) == FAILURE) {
return;
}
const maxminddb_obj *const mmdb_obj =
(maxminddb_obj *)Z_MAXMINDDB_P(this_zval);
if (NULL == mmdb_obj->mmdb) {
zend_throw_exception_ex(spl_ce_BadMethodCallException,
0 TSRMLS_CC,
"Attempt to read from a closed MaxMind DB.");
return;
}
object_init_ex(return_value, metadata_ce);
MMDB_entry_data_list_s *entry_data_list;
MMDB_get_metadata_as_entry_data_list(mmdb_obj->mmdb, &entry_data_list);
zval metadata_array;
const MMDB_entry_data_list_s *rv =
handle_entry_data_list(entry_data_list, &metadata_array TSRMLS_CC);
if (rv == NULL) {
return;
}
MMDB_free_entry_data_list(entry_data_list);
zend_call_method_with_1_params(PROP_OBJ(return_value),
metadata_ce,
&metadata_ce->constructor,
ZEND_CONSTRUCTOR_FUNC_NAME,
NULL,
&metadata_array);
zval_ptr_dtor(&metadata_array);
}
PHP_METHOD(MaxMind_Db_Reader, close) {
zval *this_zval = NULL;
if (zend_parse_method_parameters(ZEND_NUM_ARGS() TSRMLS_CC,
getThis(),
"O",
&this_zval,
maxminddb_ce) == FAILURE) {
return;
}
maxminddb_obj *mmdb_obj = (maxminddb_obj *)Z_MAXMINDDB_P(this_zval);
if (NULL == mmdb_obj->mmdb) {
zend_throw_exception_ex(spl_ce_BadMethodCallException,
0 TSRMLS_CC,
"Attempt to close a closed MaxMind DB.");
return;
}
MMDB_close(mmdb_obj->mmdb);
efree(mmdb_obj->mmdb);
mmdb_obj->mmdb = NULL;
}
static const MMDB_entry_data_list_s *
handle_entry_data_list(const MMDB_entry_data_list_s *entry_data_list,
zval *z_value TSRMLS_DC) {
switch (entry_data_list->entry_data.type) {
case MMDB_DATA_TYPE_MAP:
return handle_map(entry_data_list, z_value TSRMLS_CC);
case MMDB_DATA_TYPE_ARRAY:
return handle_array(entry_data_list, z_value TSRMLS_CC);
case MMDB_DATA_TYPE_UTF8_STRING:
ZVAL_STRINGL(z_value,
(char *)entry_data_list->entry_data.utf8_string,
entry_data_list->entry_data.data_size);
break;
case MMDB_DATA_TYPE_BYTES:
ZVAL_STRINGL(z_value,
(char *)entry_data_list->entry_data.bytes,
entry_data_list->entry_data.data_size);
break;
case MMDB_DATA_TYPE_DOUBLE:
ZVAL_DOUBLE(z_value, entry_data_list->entry_data.double_value);
break;
case MMDB_DATA_TYPE_FLOAT:
ZVAL_DOUBLE(z_value, entry_data_list->entry_data.float_value);
break;
case MMDB_DATA_TYPE_UINT16:
ZVAL_LONG(z_value, entry_data_list->entry_data.uint16);
break;
case MMDB_DATA_TYPE_UINT32:
handle_uint32(entry_data_list, z_value TSRMLS_CC);
break;
case MMDB_DATA_TYPE_BOOLEAN:
ZVAL_BOOL(z_value, entry_data_list->entry_data.boolean);
break;
case MMDB_DATA_TYPE_UINT64:
handle_uint64(entry_data_list, z_value TSRMLS_CC);
break;
case MMDB_DATA_TYPE_UINT128:
handle_uint128(entry_data_list, z_value TSRMLS_CC);
break;
case MMDB_DATA_TYPE_INT32:
ZVAL_LONG(z_value, entry_data_list->entry_data.int32);
break;
default:
zend_throw_exception_ex(maxminddb_exception_ce,
0 TSRMLS_CC,
"Invalid data type arguments: %d",
entry_data_list->entry_data.type);
return NULL;
}
return entry_data_list;
}
static const MMDB_entry_data_list_s *
handle_map(const MMDB_entry_data_list_s *entry_data_list,
zval *z_value TSRMLS_DC) {
array_init(z_value);
const uint32_t map_size = entry_data_list->entry_data.data_size;
uint32_t i;
for (i = 0; i < map_size && entry_data_list; i++) {
entry_data_list = entry_data_list->next;
char *key = estrndup((char *)entry_data_list->entry_data.utf8_string,
entry_data_list->entry_data.data_size);
if (NULL == key) {
zend_throw_exception_ex(maxminddb_exception_ce,
0 TSRMLS_CC,
"Invalid data type arguments");
return NULL;
}
entry_data_list = entry_data_list->next;
zval new_value;
entry_data_list =
handle_entry_data_list(entry_data_list, &new_value TSRMLS_CC);
if (entry_data_list != NULL) {
add_assoc_zval(z_value, key, &new_value);
}
efree(key);
}
return entry_data_list;
}
static const MMDB_entry_data_list_s *
handle_array(const MMDB_entry_data_list_s *entry_data_list,
zval *z_value TSRMLS_DC) {
const uint32_t size = entry_data_list->entry_data.data_size;
array_init(z_value);
uint32_t i;
for (i = 0; i < size && entry_data_list; i++) {
entry_data_list = entry_data_list->next;
zval new_value;
entry_data_list =
handle_entry_data_list(entry_data_list, &new_value TSRMLS_CC);
if (entry_data_list != NULL) {
add_next_index_zval(z_value, &new_value);
}
}
return entry_data_list;
}
static void handle_uint128(const MMDB_entry_data_list_s *entry_data_list,
zval *z_value TSRMLS_DC) {
uint64_t high = 0;
uint64_t low = 0;
#if MMDB_UINT128_IS_BYTE_ARRAY
int i;
for (i = 0; i < 8; i++) {
high = (high << 8) | entry_data_list->entry_data.uint128[i];
}
for (i = 8; i < 16; i++) {
low = (low << 8) | entry_data_list->entry_data.uint128[i];
}
#else
high = entry_data_list->entry_data.uint128 >> 64;
low = (uint64_t)entry_data_list->entry_data.uint128;
#endif
char *num_str;
spprintf(&num_str, 0, "0x%016" PRIX64 "%016" PRIX64, high, low);
CHECK_ALLOCATED(num_str);
ZVAL_STRING(z_value, num_str);
efree(num_str);
}
static void handle_uint32(const MMDB_entry_data_list_s *entry_data_list,
zval *z_value TSRMLS_DC) {
uint32_t val = entry_data_list->entry_data.uint32;
#if LONG_MAX >= UINT32_MAX
ZVAL_LONG(z_value, val);
return;
#else
if (val <= LONG_MAX) {
ZVAL_LONG(z_value, val);
return;
}
char *int_str;
spprintf(&int_str, 0, "%" PRIu32, val);
CHECK_ALLOCATED(int_str);
ZVAL_STRING(z_value, int_str);
efree(int_str);
#endif
}
static void handle_uint64(const MMDB_entry_data_list_s *entry_data_list,
zval *z_value TSRMLS_DC) {
uint64_t val = entry_data_list->entry_data.uint64;
#if LONG_MAX >= UINT64_MAX
ZVAL_LONG(z_value, val);
return;
#else
if (val <= LONG_MAX) {
ZVAL_LONG(z_value, val);
return;
}
char *int_str;
spprintf(&int_str, 0, "%" PRIu64, val);
CHECK_ALLOCATED(int_str);
ZVAL_STRING(z_value, int_str);
efree(int_str);
#endif
}
static void maxminddb_free_storage(free_obj_t *object TSRMLS_DC) {
maxminddb_obj *obj =
php_maxminddb_fetch_object((zend_object *)object TSRMLS_CC);
if (obj->mmdb != NULL) {
MMDB_close(obj->mmdb);
efree(obj->mmdb);
}
zend_object_std_dtor(&obj->std TSRMLS_CC);
}
static zend_object *maxminddb_create_handler(zend_class_entry *type TSRMLS_DC) {
maxminddb_obj *obj = (maxminddb_obj *)ecalloc(1, sizeof(maxminddb_obj));
zend_object_std_init(&obj->std, type TSRMLS_CC);
object_properties_init(&(obj->std), type);
obj->std.handlers = &maxminddb_obj_handlers;
return &obj->std;
}
/* clang-format off */
static zend_function_entry maxminddb_methods[] = {
PHP_ME(MaxMind_Db_Reader, __construct, arginfo_maxminddbreader_construct,
ZEND_ACC_PUBLIC | ZEND_ACC_CTOR)
PHP_ME(MaxMind_Db_Reader, close, arginfo_maxminddbreader_void, ZEND_ACC_PUBLIC)
PHP_ME(MaxMind_Db_Reader, get, arginfo_maxminddbreader_get, ZEND_ACC_PUBLIC)
PHP_ME(MaxMind_Db_Reader, getWithPrefixLen, arginfo_maxminddbreader_getWithPrefixLen, ZEND_ACC_PUBLIC)
PHP_ME(MaxMind_Db_Reader, metadata, arginfo_maxminddbreader_void, ZEND_ACC_PUBLIC)
{ NULL, NULL, NULL }
};
/* clang-format on */
ZEND_BEGIN_ARG_INFO_EX(arginfo_metadata_construct, 0, 0, 1)
ZEND_ARG_TYPE_INFO(0, metadata, IS_ARRAY, 0)
ZEND_END_ARG_INFO()
PHP_METHOD(MaxMind_Db_Reader_Metadata, __construct) {
zval *object = NULL;
zval *metadata_array = NULL;
zend_long node_count = 0;
zend_long record_size = 0;
if (zend_parse_method_parameters(ZEND_NUM_ARGS() TSRMLS_CC,
getThis(),
"Oa",
&object,
metadata_ce,
&metadata_array) == FAILURE) {
return;
}
zval *tmp = NULL;
if ((tmp = zend_hash_str_find(HASH_OF(metadata_array),
"binary_format_major_version",
sizeof("binary_format_major_version") - 1))) {
zend_update_property(metadata_ce,
PROP_OBJ(object),
"binaryFormatMajorVersion",
sizeof("binaryFormatMajorVersion") - 1,
tmp);
}
if ((tmp = zend_hash_str_find(HASH_OF(metadata_array),
"binary_format_minor_version",
sizeof("binary_format_minor_version") - 1))) {
zend_update_property(metadata_ce,
PROP_OBJ(object),
"binaryFormatMinorVersion",
sizeof("binaryFormatMinorVersion") - 1,
tmp);
}
if ((tmp = zend_hash_str_find(HASH_OF(metadata_array),
"build_epoch",
sizeof("build_epoch") - 1))) {
zend_update_property(metadata_ce,
PROP_OBJ(object),
"buildEpoch",
sizeof("buildEpoch") - 1,
tmp);
}
if ((tmp = zend_hash_str_find(HASH_OF(metadata_array),
"database_type",
sizeof("database_type") - 1))) {
zend_update_property(metadata_ce,
PROP_OBJ(object),
"databaseType",
sizeof("databaseType") - 1,
tmp);
}
if ((tmp = zend_hash_str_find(HASH_OF(metadata_array),
"description",
sizeof("description") - 1))) {
zend_update_property(metadata_ce,
PROP_OBJ(object),
"description",
sizeof("description") - 1,
tmp);
}
if ((tmp = zend_hash_str_find(HASH_OF(metadata_array),
"ip_version",
sizeof("ip_version") - 1))) {
zend_update_property(metadata_ce,
PROP_OBJ(object),
"ipVersion",
sizeof("ipVersion") - 1,
tmp);
}
if ((tmp = zend_hash_str_find(
HASH_OF(metadata_array), "languages", sizeof("languages") - 1))) {
zend_update_property(metadata_ce,
PROP_OBJ(object),
"languages",
sizeof("languages") - 1,
tmp);
}
if ((tmp = zend_hash_str_find(HASH_OF(metadata_array),
"record_size",
sizeof("record_size") - 1))) {
zend_update_property(metadata_ce,
PROP_OBJ(object),
"recordSize",
sizeof("recordSize") - 1,
tmp);
if (Z_TYPE_P(tmp) == IS_LONG) {
record_size = Z_LVAL_P(tmp);
}
}
if (record_size != 0) {
zend_update_property_long(metadata_ce,
PROP_OBJ(object),
"nodeByteSize",
sizeof("nodeByteSize") - 1,
record_size / 4);
}
if ((tmp = zend_hash_str_find(HASH_OF(metadata_array),
"node_count",
sizeof("node_count") - 1))) {
zend_update_property(metadata_ce,
PROP_OBJ(object),
"nodeCount",
sizeof("nodeCount") - 1,
tmp);
if (Z_TYPE_P(tmp) == IS_LONG) {
node_count = Z_LVAL_P(tmp);
}
}
if (record_size != 0) {
zend_update_property_long(metadata_ce,
PROP_OBJ(object),
"searchTreeSize",
sizeof("searchTreeSize") - 1,
record_size * node_count / 4);
}
}
// clang-format off
static zend_function_entry metadata_methods[] = {
PHP_ME(MaxMind_Db_Reader_Metadata, __construct, arginfo_metadata_construct, ZEND_ACC_PUBLIC | ZEND_ACC_CTOR)
{NULL, NULL, NULL}
};
// clang-format on
PHP_MINIT_FUNCTION(maxminddb) {
zend_class_entry ce;
INIT_CLASS_ENTRY(ce, PHP_MAXMINDDB_READER_EX_NS, NULL);
maxminddb_exception_ce =
zend_register_internal_class_ex(&ce, zend_ce_exception);
INIT_CLASS_ENTRY(ce, PHP_MAXMINDDB_READER_NS, maxminddb_methods);
maxminddb_ce = zend_register_internal_class(&ce TSRMLS_CC);
maxminddb_ce->create_object = maxminddb_create_handler;
INIT_CLASS_ENTRY(ce, PHP_MAXMINDDB_METADATA_NS, metadata_methods);
metadata_ce = zend_register_internal_class(&ce TSRMLS_CC);
zend_declare_property_null(metadata_ce,
"binaryFormatMajorVersion",
sizeof("binaryFormatMajorVersion") - 1,
ZEND_ACC_PUBLIC);
zend_declare_property_null(metadata_ce,
"binaryFormatMinorVersion",
sizeof("binaryFormatMinorVersion") - 1,
ZEND_ACC_PUBLIC);
zend_declare_property_null(
metadata_ce, "buildEpoch", sizeof("buildEpoch") - 1, ZEND_ACC_PUBLIC);
zend_declare_property_null(metadata_ce,
"databaseType",
sizeof("databaseType") - 1,
ZEND_ACC_PUBLIC);
zend_declare_property_null(
metadata_ce, "description", sizeof("description") - 1, ZEND_ACC_PUBLIC);
zend_declare_property_null(
metadata_ce, "ipVersion", sizeof("ipVersion") - 1, ZEND_ACC_PUBLIC);
zend_declare_property_null(
metadata_ce, "languages", sizeof("languages") - 1, ZEND_ACC_PUBLIC);
zend_declare_property_null(metadata_ce,
"nodeByteSize",
sizeof("nodeByteSize") - 1,
ZEND_ACC_PUBLIC);
zend_declare_property_null(
metadata_ce, "nodeCount", sizeof("nodeCount") - 1, ZEND_ACC_PUBLIC);
zend_declare_property_null(
metadata_ce, "recordSize", sizeof("recordSize") - 1, ZEND_ACC_PUBLIC);
zend_declare_property_null(metadata_ce,
"searchTreeSize",
sizeof("searchTreeSize") - 1,
ZEND_ACC_PUBLIC);
memcpy(&maxminddb_obj_handlers,
zend_get_std_object_handlers(),
sizeof(zend_object_handlers));
maxminddb_obj_handlers.clone_obj = NULL;
maxminddb_obj_handlers.offset = XtOffsetOf(maxminddb_obj, std);
maxminddb_obj_handlers.free_obj = maxminddb_free_storage;
zend_declare_class_constant_string(maxminddb_ce,
"MMDB_LIB_VERSION",
sizeof("MMDB_LIB_VERSION") - 1,
MMDB_lib_version() TSRMLS_CC);
return SUCCESS;
}
static PHP_MINFO_FUNCTION(maxminddb) {
php_info_print_table_start();
php_info_print_table_row(2, "MaxMind DB Reader", "enabled");
php_info_print_table_row(
2, "maxminddb extension version", PHP_MAXMINDDB_VERSION);
php_info_print_table_row(
2, "libmaxminddb library version", MMDB_lib_version());
php_info_print_table_end();
}
zend_module_entry maxminddb_module_entry = {STANDARD_MODULE_HEADER,
PHP_MAXMINDDB_EXTNAME,
NULL,
PHP_MINIT(maxminddb),
NULL,
NULL,
NULL,
PHP_MINFO(maxminddb),
PHP_MAXMINDDB_VERSION,
STANDARD_MODULE_PROPERTIES};
#ifdef COMPILE_DL_MAXMINDDB
ZEND_GET_MODULE(maxminddb)
#endif

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/* MaxMind, Inc., licenses this file to you under the Apache License, Version
* 2.0 (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
* License for the specific language governing permissions and limitations
* under the License.
*/
#include <zend_interfaces.h>
#ifndef PHP_MAXMINDDB_H
#define PHP_MAXMINDDB_H 1
#define PHP_MAXMINDDB_VERSION "1.10.1"
#define PHP_MAXMINDDB_EXTNAME "maxminddb"
extern zend_module_entry maxminddb_module_entry;
#define phpext_maxminddb_ptr &maxminddb_module_entry
#endif

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--TEST--
Check for maxminddb presence
--SKIPIF--
<?php if (!extension_loaded('maxminddb')) {
echo 'skip';
} ?>
--FILE--
<?php
echo 'maxminddb extension is available';
?>
--EXPECT--
maxminddb extension is available

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--TEST--
Check that Reader class is not final
--SKIPIF--
<?php if (!extension_loaded('maxminddb')) {
echo 'skip';
} ?>
--FILE--
<?php
$reflectionClass = new \ReflectionClass('MaxMind\Db\Reader');
var_dump($reflectionClass->isFinal());
?>
--EXPECT--
bool(false)

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--TEST--
openbase_dir is followed
--INI--
open_basedir=/--dne--
--FILE--
<?php
use MaxMind\Db\Reader;
$reader = new Reader('/usr/local/share/GeoIP/GeoIP2-City.mmdb');
?>
--EXPECTREGEX--
.*open_basedir restriction in effect.*

63
db-reader/package.xml Normal file
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<?xml version="1.0"?>
<package version="2.0" xmlns="http://pear.php.net/dtd/package-2.0"
xmlns:tasks="http://pear.php.net/dtd/tasks-1.0"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://pear.php.net/dtd/tasks-1.0 http://pear.php.net/dtd/tasks-1.0.xsd http://pear.php.net/dtd/package-2.0 http://pear.php.net/dtd/package-2.0.xsd">
<name>maxminddb</name>
<channel>pecl.php.net</channel>
<summary>Reader for the MaxMind DB file format</summary>
<description>This is the PHP extension for reading MaxMind DB files. MaxMind DB is a binary file format that stores data indexed by IP address subnets (IPv4 or IPv6).</description>
<lead>
<name>Greg Oschwald</name>
<user>oschwald</user>
<email>goschwald@maxmind.com</email>
<active>yes</active>
</lead>
<date>2021-04-14</date>
<version>
<release>1.10.1</release>
<api>1.10.1</api>
</version>
<stability>
<release>stable</release>
<api>stable</api>
</stability>
<license uri="https://github.com/maxmind/MaxMind-DB-Reader-php/blob/main/LICENSE">Apache License 2.0</license>
<notes>* Fix a `TypeError` exception in the pure PHP reader when using large
databases on 32-bit PHP builds with the `bcmath` extension. Reported
by dodo1708. GitHub #124.</notes>
<contents>
<dir name="/">
<file role="doc" name="LICENSE"/>
<file role="doc" name="CHANGELOG.md"/>
<file role="doc" name="README.md"/>
<dir name="ext">
<file role="src" name="config.m4"/>
<file role="src" name="config.w32"/>
<file role="src" name="maxminddb.c"/>
<file role="src" name="php_maxminddb.h"/>
<dir name="tests">
<file role="test" name="001-load.phpt"/>
<file role="test" name="002-final.phpt"/>
<file role="test" name="003-open-basedir.phpt"/>
</dir>
</dir>
</dir>
</contents>
<dependencies>
<required>
<php>
<min>7.2.0</min>
</php>
<pearinstaller>
<min>1.10.0</min>
</pearinstaller>
</required>
</dependencies>
<providesextension>maxminddb</providesextension>
<extsrcrelease />
</package>

7
db-reader/phpstan.neon Normal file
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parameters:
level: 6
paths:
- src
- tests
checkMissingIterableValueType: false

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<?php
declare(strict_types=1);
namespace MaxMind\Db;
use ArgumentCountError;
use BadMethodCallException;
use Exception;
use InvalidArgumentException;
use MaxMind\Db\Reader\Decoder;
use MaxMind\Db\Reader\InvalidDatabaseException;
use MaxMind\Db\Reader\Metadata;
use MaxMind\Db\Reader\Util;
use UnexpectedValueException;
/**
* Instances of this class provide a reader for the MaxMind DB format. IP
* addresses can be looked up using the get method.
*/
class Reader
{
/**
* @var int
*/
private static $DATA_SECTION_SEPARATOR_SIZE = 16;
/**
* @var string
*/
private static $METADATA_START_MARKER = "\xAB\xCD\xEFMaxMind.com";
/**
* @var int
*/
private static $METADATA_START_MARKER_LENGTH = 14;
/**
* @var int
*/
private static $METADATA_MAX_SIZE = 131072; // 128 * 1024 = 128KiB
/**
* @var Decoder
*/
private $decoder;
/**
* @var resource
*/
private $fileHandle;
/**
* @var int
*/
private $fileSize;
/**
* @var int
*/
private $ipV4Start;
/**
* @var Metadata
*/
private $metadata;
/**
* Constructs a Reader for the MaxMind DB format. The file passed to it must
* be a valid MaxMind DB file such as a GeoIp2 database file.
*
* @param string $database
* the MaxMind DB file to use
*
* @throws InvalidArgumentException for invalid database path or unknown arguments
* @throws InvalidDatabaseException
* if the database is invalid or there is an error reading
* from it
*/
public function __construct(string $database)
{
if (\func_num_args() !== 1) {
throw new ArgumentCountError(
sprintf('%s() expects exactly 1 parameter, %d given', __METHOD__, \func_num_args())
);
}
$fileHandle = @fopen($database, 'rb');
if ($fileHandle === false) {
throw new InvalidArgumentException(
"The file \"$database\" does not exist or is not readable."
);
}
$this->fileHandle = $fileHandle;
$fileSize = @filesize($database);
if ($fileSize === false) {
throw new UnexpectedValueException(
"Error determining the size of \"$database\"."
);
}
$this->fileSize = $fileSize;
$start = $this->findMetadataStart($database);
$metadataDecoder = new Decoder($this->fileHandle, $start);
[$metadataArray] = $metadataDecoder->decode($start);
$this->metadata = new Metadata($metadataArray);
$this->decoder = new Decoder(
$this->fileHandle,
$this->metadata->searchTreeSize + self::$DATA_SECTION_SEPARATOR_SIZE
);
$this->ipV4Start = $this->ipV4StartNode();
}
/**
* Retrieves the record for the IP address.
*
* @param string $ipAddress
* the IP address to look up
*
* @throws BadMethodCallException if this method is called on a closed database
* @throws InvalidArgumentException if something other than a single IP address is passed to the method
* @throws InvalidDatabaseException
* if the database is invalid or there is an error reading
* from it
*
* @return mixed the record for the IP address
*/
public function get(string $ipAddress)
{
if (\func_num_args() !== 1) {
throw new ArgumentCountError(
sprintf('%s() expects exactly 1 parameter, %d given', __METHOD__, \func_num_args())
);
}
[$record] = $this->getWithPrefixLen($ipAddress);
return $record;
}
/**
* Retrieves the record for the IP address and its associated network prefix length.
*
* @param string $ipAddress
* the IP address to look up
*
* @throws BadMethodCallException if this method is called on a closed database
* @throws InvalidArgumentException if something other than a single IP address is passed to the method
* @throws InvalidDatabaseException
* if the database is invalid or there is an error reading
* from it
*
* @return array an array where the first element is the record and the
* second the network prefix length for the record
*/
public function getWithPrefixLen(string $ipAddress): array
{
if (\func_num_args() !== 1) {
throw new ArgumentCountError(
sprintf('%s() expects exactly 1 parameter, %d given', __METHOD__, \func_num_args())
);
}
if (!\is_resource($this->fileHandle)) {
throw new BadMethodCallException(
'Attempt to read from a closed MaxMind DB.'
);
}
[$pointer, $prefixLen] = $this->findAddressInTree($ipAddress);
if ($pointer === 0) {
return [null, $prefixLen];
}
return [$this->resolveDataPointer($pointer), $prefixLen];
}
private function findAddressInTree(string $ipAddress): array
{
$packedAddr = @inet_pton($ipAddress);
if ($packedAddr === false) {
throw new InvalidArgumentException(
"The value \"$ipAddress\" is not a valid IP address."
);
}
$rawAddress = unpack('C*', $packedAddr);
$bitCount = \count($rawAddress) * 8;
// The first node of the tree is always node 0, at the beginning of the
// value
$node = 0;
$metadata = $this->metadata;
// Check if we are looking up an IPv4 address in an IPv6 tree. If this
// is the case, we can skip over the first 96 nodes.
if ($metadata->ipVersion === 6) {
if ($bitCount === 32) {
$node = $this->ipV4Start;
}
} elseif ($metadata->ipVersion === 4 && $bitCount === 128) {
throw new InvalidArgumentException(
"Error looking up $ipAddress. You attempted to look up an"
. ' IPv6 address in an IPv4-only database.'
);
}
$nodeCount = $metadata->nodeCount;
for ($i = 0; $i < $bitCount && $node < $nodeCount; ++$i) {
$tempBit = 0xFF & $rawAddress[($i >> 3) + 1];
$bit = 1 & ($tempBit >> 7 - ($i % 8));
$node = $this->readNode($node, $bit);
}
if ($node === $nodeCount) {
// Record is empty
return [0, $i];
}
if ($node > $nodeCount) {
// Record is a data pointer
return [$node, $i];
}
throw new InvalidDatabaseException(
'Invalid or corrupt database. Maximum search depth reached without finding a leaf node'
);
}
private function ipV4StartNode(): int
{
// If we have an IPv4 database, the start node is the first node
if ($this->metadata->ipVersion === 4) {
return 0;
}
$node = 0;
for ($i = 0; $i < 96 && $node < $this->metadata->nodeCount; ++$i) {
$node = $this->readNode($node, 0);
}
return $node;
}
private function readNode(int $nodeNumber, int $index): int
{
$baseOffset = $nodeNumber * $this->metadata->nodeByteSize;
switch ($this->metadata->recordSize) {
case 24:
$bytes = Util::read($this->fileHandle, $baseOffset + $index * 3, 3);
[, $node] = unpack('N', "\x00" . $bytes);
return $node;
case 28:
$bytes = Util::read($this->fileHandle, $baseOffset + 3 * $index, 4);
if ($index === 0) {
$middle = (0xF0 & \ord($bytes[3])) >> 4;
} else {
$middle = 0x0F & \ord($bytes[0]);
}
[, $node] = unpack('N', \chr($middle) . substr($bytes, $index, 3));
return $node;
case 32:
$bytes = Util::read($this->fileHandle, $baseOffset + $index * 4, 4);
[, $node] = unpack('N', $bytes);
return $node;
default:
throw new InvalidDatabaseException(
'Unknown record size: '
. $this->metadata->recordSize
);
}
}
/**
* @return mixed
*/
private function resolveDataPointer(int $pointer)
{
$resolved = $pointer - $this->metadata->nodeCount
+ $this->metadata->searchTreeSize;
if ($resolved >= $this->fileSize) {
throw new InvalidDatabaseException(
"The MaxMind DB file's search tree is corrupt"
);
}
[$data] = $this->decoder->decode($resolved);
return $data;
}
/*
* This is an extremely naive but reasonably readable implementation. There
* are much faster algorithms (e.g., Boyer-Moore) for this if speed is ever
* an issue, but I suspect it won't be.
*/
private function findMetadataStart(string $filename): int
{
$handle = $this->fileHandle;
$fstat = fstat($handle);
$fileSize = $fstat['size'];
$marker = self::$METADATA_START_MARKER;
$markerLength = self::$METADATA_START_MARKER_LENGTH;
$minStart = $fileSize - min(self::$METADATA_MAX_SIZE, $fileSize);
for ($offset = $fileSize - $markerLength; $offset >= $minStart; --$offset) {
if (fseek($handle, $offset) !== 0) {
break;
}
$value = fread($handle, $markerLength);
if ($value === $marker) {
return $offset + $markerLength;
}
}
throw new InvalidDatabaseException(
"Error opening database file ($filename). " .
'Is this a valid MaxMind DB file?'
);
}
/**
* @throws InvalidArgumentException if arguments are passed to the method
* @throws BadMethodCallException if the database has been closed
*
* @return Metadata object for the database
*/
public function metadata(): Metadata
{
if (\func_num_args()) {
throw new ArgumentCountError(
sprintf('%s() expects exactly 0 parameters, %d given', __METHOD__, \func_num_args())
);
}
// Not technically required, but this makes it consistent with
// C extension and it allows us to change our implementation later.
if (!\is_resource($this->fileHandle)) {
throw new BadMethodCallException(
'Attempt to read from a closed MaxMind DB.'
);
}
return clone $this->metadata;
}
/**
* Closes the MaxMind DB and returns resources to the system.
*
* @throws Exception
* if an I/O error occurs
*/
public function close(): void
{
if (\func_num_args()) {
throw new ArgumentCountError(
sprintf('%s() expects exactly 0 parameters, %d given', __METHOD__, \func_num_args())
);
}
if (!\is_resource($this->fileHandle)) {
throw new BadMethodCallException(
'Attempt to close a closed MaxMind DB.'
);
}
fclose($this->fileHandle);
}
}

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<?php
declare(strict_types=1);
namespace MaxMind\Db\Reader;
// @codingStandardsIgnoreLine
use RuntimeException;
/*
* @ignore
*
* We subtract 1 from the log to protect against precision loss.
*/
\define(__NAMESPACE__ . '\_MM_MAX_INT_BYTES', (int) ((log(\PHP_INT_MAX, 2) - 1) / 8));
class Decoder
{
/**
* @var resource
*/
private $fileStream;
/**
* @var int
*/
private $pointerBase;
/**
* @var float
*/
private $pointerBaseByteSize;
/**
* This is only used for unit testing.
*
* @var bool
*/
private $pointerTestHack;
/**
* @var bool
*/
private $switchByteOrder;
private const _EXTENDED = 0;
private const _POINTER = 1;
private const _UTF8_STRING = 2;
private const _DOUBLE = 3;
private const _BYTES = 4;
private const _UINT16 = 5;
private const _UINT32 = 6;
private const _MAP = 7;
private const _INT32 = 8;
private const _UINT64 = 9;
private const _UINT128 = 10;
private const _ARRAY = 11;
private const _CONTAINER = 12;
private const _END_MARKER = 13;
private const _BOOLEAN = 14;
private const _FLOAT = 15;
/**
* @param resource $fileStream
*/
public function __construct(
$fileStream,
int $pointerBase = 0,
bool $pointerTestHack = false
) {
$this->fileStream = $fileStream;
$this->pointerBase = $pointerBase;
$this->pointerBaseByteSize = $pointerBase > 0 ? log($pointerBase, 2) / 8 : 0;
$this->pointerTestHack = $pointerTestHack;
$this->switchByteOrder = $this->isPlatformLittleEndian();
}
public function decode(int $offset): array
{
$ctrlByte = \ord(Util::read($this->fileStream, $offset, 1));
++$offset;
$type = $ctrlByte >> 5;
// Pointers are a special case, we don't read the next $size bytes, we
// use the size to determine the length of the pointer and then follow
// it.
if ($type === self::_POINTER) {
[$pointer, $offset] = $this->decodePointer($ctrlByte, $offset);
// for unit testing
if ($this->pointerTestHack) {
return [$pointer];
}
[$result] = $this->decode($pointer);
return [$result, $offset];
}
if ($type === self::_EXTENDED) {
$nextByte = \ord(Util::read($this->fileStream, $offset, 1));
$type = $nextByte + 7;
if ($type < 8) {
throw new InvalidDatabaseException(
'Something went horribly wrong in the decoder. An extended type '
. 'resolved to a type number < 8 ('
. $type
. ')'
);
}
++$offset;
}
[$size, $offset] = $this->sizeFromCtrlByte($ctrlByte, $offset);
return $this->decodeByType($type, $offset, $size);
}
private function decodeByType(int $type, int $offset, int $size): array
{
switch ($type) {
case self::_MAP:
return $this->decodeMap($size, $offset);
case self::_ARRAY:
return $this->decodeArray($size, $offset);
case self::_BOOLEAN:
return [$this->decodeBoolean($size), $offset];
}
$newOffset = $offset + $size;
$bytes = Util::read($this->fileStream, $offset, $size);
switch ($type) {
case self::_BYTES:
case self::_UTF8_STRING:
return [$bytes, $newOffset];
case self::_DOUBLE:
$this->verifySize(8, $size);
return [$this->decodeDouble($bytes), $newOffset];
case self::_FLOAT:
$this->verifySize(4, $size);
return [$this->decodeFloat($bytes), $newOffset];
case self::_INT32:
return [$this->decodeInt32($bytes, $size), $newOffset];
case self::_UINT16:
case self::_UINT32:
case self::_UINT64:
case self::_UINT128:
return [$this->decodeUint($bytes, $size), $newOffset];
default:
throw new InvalidDatabaseException(
'Unknown or unexpected type: ' . $type
);
}
}
private function verifySize(int $expected, int $actual): void
{
if ($expected !== $actual) {
throw new InvalidDatabaseException(
"The MaxMind DB file's data section contains bad data (unknown data type or corrupt data)"
);
}
}
private function decodeArray(int $size, int $offset): array
{
$array = [];
for ($i = 0; $i < $size; ++$i) {
[$value, $offset] = $this->decode($offset);
$array[] = $value;
}
return [$array, $offset];
}
private function decodeBoolean(int $size): bool
{
return $size !== 0;
}
private function decodeDouble(string $bytes): float
{
// This assumes IEEE 754 doubles, but most (all?) modern platforms
// use them.
[, $double] = unpack('E', $bytes);
return $double;
}
private function decodeFloat(string $bytes): float
{
// This assumes IEEE 754 floats, but most (all?) modern platforms
// use them.
[, $float] = unpack('G', $bytes);
return $float;
}
private function decodeInt32(string $bytes, int $size): int
{
switch ($size) {
case 0:
return 0;
case 1:
case 2:
case 3:
$bytes = str_pad($bytes, 4, "\x00", \STR_PAD_LEFT);
break;
case 4:
break;
default:
throw new InvalidDatabaseException(
"The MaxMind DB file's data section contains bad data (unknown data type or corrupt data)"
);
}
[, $int] = unpack('l', $this->maybeSwitchByteOrder($bytes));
return $int;
}
private function decodeMap(int $size, int $offset): array
{
$map = [];
for ($i = 0; $i < $size; ++$i) {
[$key, $offset] = $this->decode($offset);
[$value, $offset] = $this->decode($offset);
$map[$key] = $value;
}
return [$map, $offset];
}
private function decodePointer(int $ctrlByte, int $offset): array
{
$pointerSize = (($ctrlByte >> 3) & 0x3) + 1;
$buffer = Util::read($this->fileStream, $offset, $pointerSize);
$offset = $offset + $pointerSize;
switch ($pointerSize) {
case 1:
$packed = \chr($ctrlByte & 0x7) . $buffer;
[, $pointer] = unpack('n', $packed);
$pointer += $this->pointerBase;
break;
case 2:
$packed = "\x00" . \chr($ctrlByte & 0x7) . $buffer;
[, $pointer] = unpack('N', $packed);
$pointer += $this->pointerBase + 2048;
break;
case 3:
$packed = \chr($ctrlByte & 0x7) . $buffer;
// It is safe to use 'N' here, even on 32 bit machines as the
// first bit is 0.
[, $pointer] = unpack('N', $packed);
$pointer += $this->pointerBase + 526336;
break;
case 4:
// We cannot use unpack here as we might overflow on 32 bit
// machines
$pointerOffset = $this->decodeUint($buffer, $pointerSize);
$pointerBase = $this->pointerBase;
if (\PHP_INT_MAX - $pointerBase >= $pointerOffset) {
$pointer = $pointerOffset + $pointerBase;
} else {
throw new RuntimeException(
'The database offset is too large to be represented on your platform.'
);
}
break;
default:
throw new InvalidDatabaseException(
'Unexpected pointer size ' . $pointerSize
);
}
return [$pointer, $offset];
}
// @phpstan-ignore-next-line
private function decodeUint(string $bytes, int $byteLength)
{
if ($byteLength === 0) {
return 0;
}
$integer = 0;
// PHP integers are signed. _MM_MAX_INT_BYTES is the number of
// complete bytes that can be converted to an integer. However,
// we can convert another byte if the leading bit is zero.
$useRealInts = $byteLength <= _MM_MAX_INT_BYTES
|| ($byteLength === _MM_MAX_INT_BYTES + 1 && (\ord($bytes[0]) & 0x80) === 0);
for ($i = 0; $i < $byteLength; ++$i) {
$part = \ord($bytes[$i]);
// We only use gmp or bcmath if the final value is too big
if ($useRealInts) {
$integer = ($integer << 8) + $part;
} elseif (\extension_loaded('gmp')) {
$integer = gmp_strval(gmp_add(gmp_mul((string) $integer, '256'), $part));
} elseif (\extension_loaded('bcmath')) {
$integer = bcadd(bcmul((string) $integer, '256'), (string) $part);
} else {
throw new RuntimeException(
'The gmp or bcmath extension must be installed to read this database.'
);
}
}
return $integer;
}
private function sizeFromCtrlByte(int $ctrlByte, int $offset): array
{
$size = $ctrlByte & 0x1f;
if ($size < 29) {
return [$size, $offset];
}
$bytesToRead = $size - 28;
$bytes = Util::read($this->fileStream, $offset, $bytesToRead);
if ($size === 29) {
$size = 29 + \ord($bytes);
} elseif ($size === 30) {
[, $adjust] = unpack('n', $bytes);
$size = 285 + $adjust;
} else {
[, $adjust] = unpack('N', "\x00" . $bytes);
$size = $adjust + 65821;
}
return [$size, $offset + $bytesToRead];
}
private function maybeSwitchByteOrder(string $bytes): string
{
return $this->switchByteOrder ? strrev($bytes) : $bytes;
}
private function isPlatformLittleEndian(): bool
{
$testint = 0x00FF;
$packed = pack('S', $testint);
return $testint === current(unpack('v', $packed));
}
}

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<?php
declare(strict_types=1);
namespace MaxMind\Db\Reader;
use Exception;
/**
* This class should be thrown when unexpected data is found in the database.
*/
class InvalidDatabaseException extends Exception
{
}

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<?php
declare(strict_types=1);
namespace MaxMind\Db\Reader;
use ArgumentCountError;
/**
* This class provides the metadata for the MaxMind DB file.
*/
class Metadata
{
/**
* This is an unsigned 16-bit integer indicating the major version number
* for the database's binary format.
*
* @var int
*/
public $binaryFormatMajorVersion;
/**
* This is an unsigned 16-bit integer indicating the minor version number
* for the database's binary format.
*
* @var int
*/
public $binaryFormatMinorVersion;
/**
* This is an unsigned 64-bit integer that contains the database build
* timestamp as a Unix epoch value.
*
* @var int
*/
public $buildEpoch;
/**
* This is a string that indicates the structure of each data record
* associated with an IP address. The actual definition of these
* structures is left up to the database creator.
*
* @var string
*/
public $databaseType;
/**
* This key will always point to a map (associative array). The keys of
* that map will be language codes, and the values will be a description
* in that language as a UTF-8 string. May be undefined for some
* databases.
*
* @var array
*/
public $description;
/**
* This is an unsigned 16-bit integer which is always 4 or 6. It indicates
* whether the database contains IPv4 or IPv6 address data.
*
* @var int
*/
public $ipVersion;
/**
* An array of strings, each of which is a language code. A given record
* may contain data items that have been localized to some or all of
* these languages. This may be undefined.
*
* @var array
*/
public $languages;
/**
* @var int
*/
public $nodeByteSize;
/**
* This is an unsigned 32-bit integer indicating the number of nodes in
* the search tree.
*
* @var int
*/
public $nodeCount;
/**
* This is an unsigned 16-bit integer. It indicates the number of bits in a
* record in the search tree. Note that each node consists of two records.
*
* @var int
*/
public $recordSize;
/**
* @var int
*/
public $searchTreeSize;
public function __construct(array $metadata)
{
if (\func_num_args() !== 1) {
throw new ArgumentCountError(
sprintf('%s() expects exactly 1 parameter, %d given', __METHOD__, \func_num_args())
);
}
$this->binaryFormatMajorVersion =
$metadata['binary_format_major_version'];
$this->binaryFormatMinorVersion =
$metadata['binary_format_minor_version'];
$this->buildEpoch = $metadata['build_epoch'];
$this->databaseType = $metadata['database_type'];
$this->languages = $metadata['languages'];
$this->description = $metadata['description'];
$this->ipVersion = $metadata['ip_version'];
$this->nodeCount = $metadata['node_count'];
$this->recordSize = $metadata['record_size'];
$this->nodeByteSize = $this->recordSize / 4;
$this->searchTreeSize = $this->nodeCount * $this->nodeByteSize;
}
}

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<?php
declare(strict_types=1);
namespace MaxMind\Db\Reader;
class Util
{
/**
* @param resource $stream
*/
public static function read($stream, int $offset, int $numberOfBytes): string
{
if ($numberOfBytes === 0) {
return '';
}
if (fseek($stream, $offset) === 0) {
$value = fread($stream, $numberOfBytes);
// We check that the number of bytes read is equal to the number
// asked for. We use ftell as getting the length of $value is
// much slower.
if ($value !== false && ftell($stream) - $offset === $numberOfBytes) {
return $value;
}
}
throw new InvalidDatabaseException(
'The MaxMind DB file contains bad data'
);
}
}

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<?php
$ip = substr($_SERVER['REQUEST_URI'], 1);
if (filter_var($ip, FILTER_VALIDATE_IP, FILTER_FLAG_IPV4))
$ipFormat = "IPv4";
else if (filter_var($ip, FILTER_VALIDATE_IP, FILTER_FLAG_IPV6))
$ipFormat = "IPv6";
else
exit("This is not a valid IP address!");
define("GEOLITE2_DATE", "20210914");
require('db-reader/autoload.php');
use MaxMind\Db\Reader;
$reader = new Reader("geolite2/GeoLite2-ASN_" . GEOLITE2_DATE . "/GeoLite2-ASN.mmdb");
$asnData = $reader->get($ip);
$reader->close();
$reader = new Reader("geolite2/GeoLite2-City_" . GEOLITE2_DATE . "/GeoLite2-City.mmdb");
$cityData = $reader->get($ip);
$reader->close();
?>
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>Informations about <?= $ipFormat ?> address <?= htmlspecialchars($ip) ?></title>
</head>
<body>
<h1>Informations about <?= $ipFormat ?> address <code><?= htmlspecialchars($ip) ?></code></h1>
<main>
<abbr title="Autonomous System Number">ASN</abbr>: <code><?= htmlspecialchars($asnData['autonomous_system_number']) ?></code><br>
<abbr title="Autonomous System">AS</abbr> name: <?= htmlspecialchars($asnData['autonomous_system_organization']) ?><br>
Location: <a href="geo:<?= htmlspecialchars($cityData['location']['latitude']) ?>,<?= htmlspecialchars($cityData['location']['longitude']) ?>"><?= htmlspecialchars($cityData['location']['latitude']) ?>,<?= htmlspecialchars($cityData['location']['longitude']) ?></a> (accuracy radius: <?= htmlspecialchars($cityData['location']['accuracy_radius']) ?> km)<br>
Continent: <?php if (isset($cityData['continent']['names']['en'])) echo htmlspecialchars($cityData['continent']['names']['en']) . " (" . htmlspecialchars($cityData['continent']['code']) . ")"; else echo "unknown"; ?><br>
Time zone: <?php if (isset($cityData['location']['time_zone'])) echo htmlspecialchars($cityData['location']['time_zone']); else echo "unknown"; ?><br>
Country: <?php if (isset($cityData['country']['names']['en'])) echo htmlspecialchars($cityData['country']['names']['en']) . " (" . htmlspecialchars($cityData['country']['iso_code']) . ")"; else echo "unknown"; ?><br>
Subdivision: <?php if (isset($cityData['subdivisions']['0']['names']['en'])) echo htmlspecialchars($cityData['subdivisions']['0']['names']['en']) . " (" . htmlspecialchars($cityData['subdivisions']['0']['iso_code']) . ")"; else echo "unknown"; ?><br>
Postal code: <?php if (isset($cityData['postal']['code'])) echo htmlspecialchars($cityData['postal']['code']); else echo "unknown"; ?><br>
City: <?php if (isset($cityData['city']['names']['en'])) echo htmlspecialchars($cityData['city']['names']['en']); else echo "unknown"; ?><br>
</main>
<footer>
<small>This page queries a local GeoLite2 database dating from <?= GEOLITE2_DATE ?>.</small>
</footer>
</body>
</html>
<!--
RAW ASN DATA
<?= htmlspecialchars(var_dump($asnData)); ?>
RAW CITY DATA
<?= htmlspecialchars(var_dump($cityData)); ?>
-->

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Database and Contents Copyright (c) 2021 MaxMind, Inc.

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Use of this MaxMind product is governed by MaxMind's GeoLite2 End User License Agreement, which can be viewed at https://www.maxmind.com/en/geolite2/eula.
This database incorporates GeoNames [https://www.geonames.org] geographical data, which is made available under the Creative Commons Attribution 4.0 License. To view a copy of this license, visit https://creativecommons.org/licenses/by/4.0/.

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Database and Contents Copyright (c) 2021 MaxMind, Inc.

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Use of this MaxMind product is governed by MaxMind's GeoLite2 End User License Agreement, which can be viewed at https://www.maxmind.com/en/geolite2/eula.
This database incorporates GeoNames [https://www.geonames.org] geographical data, which is made available under the Creative Commons Attribution 4.0 License. To view a copy of this license, visit https://creativecommons.org/licenses/by/4.0/.

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Latitude and longitude are not precise and should not be used to identify a particular street address or household.

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Database and Contents Copyright (c) 2021 MaxMind, Inc.

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Use of this MaxMind product is governed by MaxMind's GeoLite2 End User License Agreement, which can be viewed at https://www.maxmind.com/en/geolite2/eula.
This database incorporates GeoNames [https://www.geonames.org] geographical data, which is made available under the Creative Commons Attribution 4.0 License. To view a copy of this license, visit https://creativecommons.org/licenses/by/4.0/.

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<?php
if ($_SERVER['REQUEST_URI'] === "/me")
header("Location: /" . htmlspecialchars($_SERVER['REMOTE_ADDR']));
else if ($_SERVER['REQUEST_URI'] === "/emoji")
echo file_get_contents("emoji.html");
else if (filter_var(substr($_SERVER['REQUEST_URI'], 1), FILTER_VALIDATE_IP))
require "geolite2.php";
else
require "meta.php";

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<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Meta</title>
</head>
<body>
<section>
<h1><abbr title="Internet Protocol">IP</abbr></h1>
Client address: <samp><?= htmlspecialchars($_SERVER['REMOTE_ADDR']) ?></samp> (<a href="<?= htmlspecialchars($_SERVER['REMOTE_ADDR']) ?>">informations from database</a>)<br>
Server address: <?php
if (filter_var($_SERVER['SERVER_ADDR'], FILTER_VALIDATE_IP, FILTER_FLAG_NO_PRIV_RANGE)) { ?>
<samp><?= htmlspecialchars($_SERVER['SERVER_ADDR']) ?></samp> (<a href="<?= htmlspecialchars($_SERVER['SERVER_ADDR']) ?>">informations from database</a>)
<?php } else
echo "<em>- (require IPv6)</em>";
?>
<br>
</section>
<section>
<h1><abbr title="Transmission Control Protocol">TCP</abbr></h1>
<abbr title="Round Trip Time">RTT</abbr>: <samp><?= htmlspecialchars($_SERVER['TCPINFO_RTT']) ?></samp> milliseconds<br>
<abbr title="Round Trip Time">RTT</abbr> variance: <samp><?= htmlspecialchars($_SERVER['TCPINFO_RTTVAR']) ?></samp><br>
SND CWND: <samp><?= htmlspecialchars($_SERVER['TCPINFO_SND_CWND']) ?></samp><br>
RCV SPACE: <samp><?= htmlspecialchars($_SERVER['TCPINFO_RCV_SPACE']) ?></samp><br>
<section>
<h2>Ports</h2>
Client port: <samp><?= htmlspecialchars($_SERVER['REMOTE_PORT']) ?></samp><br>
Server port: <samp><?= htmlspecialchars($_SERVER['SERVER_PORT']) ?></samp><br>
<details>
<summary>Test outgoing destination ports (IPv6 only)</summary>
<?php
$reachablePorts = Array(1,2,20,21,22,23,25,53,80,123,143,443,587,853,993,1312,3478,5349,8448,16384,25535,32768,49152,65535);
foreach ($reachablePorts as $port) { ?>
<a href="https://ports.meta.4.niv.re:<?= $port ?>/">https://ports.meta.4.niv.re:<strong><?= $port ?></strong>/</a><br>
<?php }
?>
</details>
</section>
</section>
<section>
<h1><abbr title="Transport Layer Security">TLS</abbr></h1>
TLS session ID: <samp><?= htmlspecialchars($_SERVER['SSL_SESSION_ID']) ?></samp><br>
Offered TLS curves: <samp><?= htmlspecialchars($_SERVER['SSL_CURVES']) ?></samp><br>
Offered TLS ciphers: <samp><?= htmlspecialchars($_SERVER['SSL_CIPHERS']) ?></samp><br>
Negotiated TLS cipher: <samp><?= htmlspecialchars($_SERVER['SSL_CIPHER']) ?></samp><br>
Negotiated TLS version: <samp><?= htmlspecialchars($_SERVER['SSL_PROTOCOL']) ?></samp><br>
</section>
<section>
<h1><abbr title="HyperText Transfert Protocol">HTTP</abbr></h1>
Request line: <samp><?= htmlspecialchars($_SERVER['REQUEST']) ?></samp><br>
<section>
<h2>Headers</h2>
<pre><?php
foreach (getallheaders() as $name => $value) {
if ($name !== "Content-Length" AND $name !== "Content-Type")
echo htmlspecialchars($name) . ": " . htmlspecialchars($value) . "\n";
} ?></pre>
<details>
<summary>Headers definition lists</summary>
<a href="https://en.wikipedia.org/wiki/List_of_HTTP_header_fields">https://en.wikipedia.org/wiki/List_of_HTTP_header_fields</a><br>
<a href="https://developer.mozilla.org/docs/Web/HTTP/Headers">https://developer.mozilla.org/docs/Web/HTTP/Headers</a><br>
<a href="https://datatracker.ietf.org/doc/html/rfc2616">https://datatracker.ietf.org/doc/html/rfc2616</a><br>
<a href="https://datatracker.ietf.org/doc/html/rfc7231#section-5">RFC 7231 <em>Hypertext Transfer Protocol (HTTP/1.1): Semantics and Content</em> > <em>5. Request Header Fields</em></a><br>
<a href="https://datatracker.ietf.org/doc/html/rfc7231#section-7">RFC 7231 <em>Hypertext Transfer Protocol (HTTP/1.1): Semantics and Content</em> > <em>7. Response Header Fields</em></a><br>
</details>
</section>
</section>
<section>
<h1>Server system informations</h1>
<?php
date_default_timezone_set('UTC');
?>
Architecture: <samp><?= htmlspecialchars(php_uname("m")) ?></samp><br>
Distribution: <samp><?php echo htmlspecialchars(shell_exec("/usr/bin/lsb_release -si")); ?></samp><br>
Distribution version: <samp><?php echo htmlspecialchars(shell_exec("/usr/bin/lsb_release -sr")); ?></samp><br>
Distribution version codename: <samp><?php echo htmlspecialchars(shell_exec("/usr/bin/lsb_release -sc")); ?></samp><br>
Distribution description: <samp><?php echo htmlspecialchars(shell_exec("/usr/bin/lsb_release -sd")); ?></samp><br>
Kernel: <samp><?= htmlspecialchars(php_uname("s")) ?></samp><br>
Kernel version: <samp><?= htmlspecialchars(php_uname("r")) ?></samp><br>
Nginx version: <samp><?= htmlspecialchars($_SERVER['NGINX_VERSION']) ?></samp><br>
PHP version: <samp><?= htmlspecialchars(phpversion()) ?></samp><br>
Connection ID since Nginx startup: <samp><?= htmlspecialchars($_SERVER['CONNECTION']) ?></samp><br>
Requests in this connection: <samp><?= htmlspecialchars($_SERVER['CONNECTION_REQUESTS']) ?></samp><br>
<?php
$time = explode(".", $_SERVER['REQUEST_TIME_FLOAT']);
?>
Unix time: <samp title="Number of seconds since January 1 1970 00:00:00.0000 UTC"><?= htmlspecialchars($_SERVER['REQUEST_TIME_FLOAT']) ?></samp> (<span title="year-month-day hour:minute:second.decimal"><?= date("Y-m-d H:i:s", $time[0]) . "." . $time[1] ?></span> UTC)<br>
<br>
</section>
</body>
</html>