add geolocation functionality

1 files changed, 811 insertions, 0 deletions

diff --git a/vendor/maxmind-db/reader/ext/maxminddb.c b/vendor/maxmind-db/reader/ext/maxminddb.c
new file mode 100644
index 0000000..b00b2fa
--- /dev/null
+++ b/vendor/maxmind-db/reader/ext/maxminddb.c
@@ -0,0 +1,811 @@
+/* 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
+
+/* ZEND_THIS was added in 7.4 */
+#ifndef ZEND_THIS
+#define ZEND_THIS (&EX(This))
+#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(ZEND_THIS);
+    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(ZEND_THIS);
+
+    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