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/*
+----------------------------------------------------------------------+
| PHP Version 7 |
+----------------------------------------------------------------------+
| Copyright (c) 1997-2017 The PHP Group |
+----------------------------------------------------------------------+
| This source file is subject to version 3.01 of the PHP license, |
| that is bundled with this package in the file LICENSE, and is |
| available through the world-wide-web at the following url: |
| http://www.php.net/license/3_01.txt |
| If you did not receive a copy of the PHP license and are unable to |
| obtain it through the world-wide-web, please send a note to |
| license@php.net so we can mail you a copy immediately. |
+----------------------------------------------------------------------+
| Authors: Rasmus Lerdorf <rasmus@lerdorf.on.ca> |
| Zeev Suraski <zeev@zend.com> |
+----------------------------------------------------------------------+
*/
/* $Id$ */
#include <stdio.h>
#include "php.h"
#include "ext/standard/php_standard.h"
#include "ext/standard/credits.h"
#include "zend_smart_str.h"
#include "php_variables.h"
#include "php_globals.h"
#include "php_content_types.h"
#include "SAPI.h"
#include "zend_globals.h"
#ifdef PHP_WIN32
# include "win32/php_inttypes.h"
#endif
/* for systems that need to override reading of environment variables */
void _php_import_environment_variables(zval *array_ptr);
PHPAPI void (*php_import_environment_variables)(zval *array_ptr) = _php_import_environment_variables;
PHPAPI void php_register_variable(char *var, char *strval, zval *track_vars_array)
{
php_register_variable_safe(var, strval, strlen(strval), track_vars_array);
}
/* binary-safe version */
PHPAPI void php_register_variable_safe(char *var, char *strval, size_t str_len, zval *track_vars_array)
{
zval new_entry;
assert(strval != NULL);
/* Prepare value */
if (str_len == 0) {
ZVAL_EMPTY_STRING(&new_entry);
} else if (str_len == 1) {
ZVAL_INTERNED_STR(&new_entry, ZSTR_CHAR((zend_uchar)*strval));
} else {
ZVAL_NEW_STR(&new_entry, zend_string_init(strval, str_len, 0));
}
php_register_variable_ex(var, &new_entry, track_vars_array);
}
PHPAPI void php_register_variable_ex(char *var_name, zval *val, zval *track_vars_array)
{
char *p = NULL;
char *ip = NULL; /* index pointer */
char *index;
char *var, *var_orig;
size_t var_len, index_len;
zval gpc_element, *gpc_element_p;
zend_bool is_array = 0;
HashTable *symtable1 = NULL;
ALLOCA_FLAG(use_heap)
assert(var_name != NULL);
if (track_vars_array && Z_TYPE_P(track_vars_array) == IS_ARRAY) {
symtable1 = Z_ARRVAL_P(track_vars_array);
}
if (!symtable1) {
/* Nothing to do */
zval_dtor(val);
return;
}
/* ignore leading spaces in the variable name */
while (*var_name==' ') {
var_name++;
}
/*
* Prepare variable name
*/
var_len = strlen(var_name);
var = var_orig = do_alloca(var_len + 1, use_heap);
memcpy(var_orig, var_name, var_len + 1);
/* ensure that we don't have spaces or dots in the variable name (not binary safe) */
for (p = var; *p; p++) {
if (*p == ' ' || *p == '.') {
*p='_';
} else if (*p == '[') {
is_array = 1;
ip = p;
*p = 0;
break;
}
}
var_len = p - var;
if (var_len==0) { /* empty variable name, or variable name with a space in it */
zval_dtor(val);
free_alloca(var_orig, use_heap);
return;
}
if (var_len == sizeof("this")-1 && EG(current_execute_data)) {
zend_execute_data *ex = EG(current_execute_data);
while (ex) {
if (ex->func && ZEND_USER_CODE(ex->func->common.type)) {
if ((ZEND_CALL_INFO(ex) & ZEND_CALL_HAS_SYMBOL_TABLE)
&& ex->symbol_table == symtable1) {
if (memcmp(var, "this", sizeof("this")-1) == 0) {
zend_throw_error(NULL, "Cannot re-assign $this");
zval_dtor(val);
free_alloca(var_orig, use_heap);
return;
}
}
break;
}
ex = ex->prev_execute_data;
}
}
/* GLOBALS hijack attempt, reject parameter */
if (symtable1 == &EG(symbol_table) &&
var_len == sizeof("GLOBALS")-1 &&
!memcmp(var, "GLOBALS", sizeof("GLOBALS")-1)) {
zval_dtor(val);
free_alloca(var_orig, use_heap);
return;
}
index = var;
index_len = var_len;
if (is_array) {
int nest_level = 0;
while (1) {
char *index_s;
size_t new_idx_len = 0;
if(++nest_level > PG(max_input_nesting_level)) {
HashTable *ht;
/* too many levels of nesting */
if (track_vars_array) {
ht = Z_ARRVAL_P(track_vars_array);
zend_symtable_str_del(ht, var, var_len);
}
zval_dtor(val);
/* do not output the error message to the screen,
this helps us to to avoid "information disclosure" */
if (!PG(display_errors)) {
php_error_docref(NULL, E_WARNING, "Input variable nesting level exceeded " ZEND_LONG_FMT ". To increase the limit change max_input_nesting_level in php.ini.", PG(max_input_nesting_level));
}
free_alloca(var_orig, use_heap);
return;
}
ip++;
index_s = ip;
if (isspace(*ip)) {
ip++;
}
if (*ip==']') {
index_s = NULL;
} else {
ip = strchr(ip, ']');
if (!ip) {
/* PHP variables cannot contain '[' in their names, so we replace the character with a '_' */
*(index_s - 1) = '_';
index_len = 0;
if (index) {
index_len = strlen(index);
}
goto plain_var;
return;
}
*ip = 0;
new_idx_len = strlen(index_s);
}
if (!index) {
array_init(&gpc_element);
if ((gpc_element_p = zend_hash_next_index_insert(symtable1, &gpc_element)) == NULL) {
zval_ptr_dtor(&gpc_element);
zval_dtor(val);
free_alloca(var_orig, use_heap);
return;
}
} else {
gpc_element_p = zend_symtable_str_find(symtable1, index, index_len);
if (!gpc_element_p) {
zval tmp;
array_init(&tmp);
gpc_element_p = zend_symtable_str_update_ind(symtable1, index, index_len, &tmp);
} else {
if (Z_TYPE_P(gpc_element_p) == IS_INDIRECT) {
gpc_element_p = Z_INDIRECT_P(gpc_element_p);
}
if (Z_TYPE_P(gpc_element_p) != IS_ARRAY) {
zval_ptr_dtor(gpc_element_p);
array_init(gpc_element_p);
}
}
}
symtable1 = Z_ARRVAL_P(gpc_element_p);
/* ip pointed to the '[' character, now obtain the key */
index = index_s;
index_len = new_idx_len;
ip++;
if (*ip == '[') {
is_array = 1;
*ip = 0;
} else {
goto plain_var;
}
}
} else {
plain_var:
ZVAL_COPY_VALUE(&gpc_element, val);
if (!index) {
if ((gpc_element_p = zend_hash_next_index_insert(symtable1, &gpc_element)) == NULL) {
zval_ptr_dtor(&gpc_element);
}
} else {
/*
* According to rfc2965, more specific paths are listed above the less specific ones.
* If we encounter a duplicate cookie name, we should skip it, since it is not possible
* to have the same (plain text) cookie name for the same path and we should not overwrite
* more specific cookies with the less specific ones.
*/
if (Z_TYPE(PG(http_globals)[TRACK_VARS_COOKIE]) != IS_UNDEF &&
symtable1 == Z_ARRVAL(PG(http_globals)[TRACK_VARS_COOKIE]) &&
zend_symtable_str_exists(symtable1, index, index_len)) {
zval_ptr_dtor(&gpc_element);
} else {
gpc_element_p = zend_symtable_str_update_ind(symtable1, index, index_len, &gpc_element);
}
}
}
free_alloca(var_orig, use_heap);
}
typedef struct post_var_data {
smart_str str;
char *ptr;
char *end;
uint64_t cnt;
/* Bytes in ptr that have already been scanned for '&' */
size_t already_scanned;
} post_var_data_t;
static zend_bool add_post_var(zval *arr, post_var_data_t *var, zend_bool eof)
{
char *start, *ksep, *vsep, *val;
size_t klen, vlen;
size_t new_vlen;
if (var->ptr >= var->end) {
return 0;
}
start = var->ptr + var->already_scanned;
vsep = memchr(start, '&', var->end - start);
if (!vsep) {
if (!eof) {
var->already_scanned = var->end - var->ptr;
return 0;
} else {
vsep = var->end;
}
}
ksep = memchr(var->ptr, '=', vsep - var->ptr);
if (ksep) {
*ksep = '\0';
/* "foo=bar&" or "foo=&" */
klen = ksep - var->ptr;
vlen = vsep - ++ksep;
} else {
ksep = "";
/* "foo&" */
klen = vsep - var->ptr;
vlen = 0;
}
php_url_decode(var->ptr, klen);
val = estrndup(ksep, vlen);
if (vlen) {
vlen = php_url_decode(val, vlen);
}
if (sapi_module.input_filter(PARSE_POST, var->ptr, &val, vlen, &new_vlen)) {
php_register_variable_safe(var->ptr, val, new_vlen, arr);
}
efree(val);
var->ptr = vsep + (vsep != var->end);
var->already_scanned = 0;
return 1;
}
static inline int add_post_vars(zval *arr, post_var_data_t *vars, zend_bool eof)
{
uint64_t max_vars = PG(max_input_vars);
vars->ptr = ZSTR_VAL(vars->str.s);
vars->end = ZSTR_VAL(vars->str.s) + ZSTR_LEN(vars->str.s);
while (add_post_var(arr, vars, eof)) {
if (++vars->cnt > max_vars) {
php_error_docref(NULL, E_WARNING,
"Input variables exceeded %" PRIu64 ". "
"To increase the limit change max_input_vars in php.ini.",
max_vars);
return FAILURE;
}
}
if (!eof && ZSTR_VAL(vars->str.s) != vars->ptr) {
memmove(ZSTR_VAL(vars->str.s), vars->ptr, ZSTR_LEN(vars->str.s) = vars->end - vars->ptr);
}
return SUCCESS;
}
#ifdef PHP_WIN32
#define SAPI_POST_HANDLER_BUFSIZ 16384
#else
# define SAPI_POST_HANDLER_BUFSIZ BUFSIZ
#endif
SAPI_API SAPI_POST_HANDLER_FUNC(php_std_post_handler)
{
zval *arr = (zval *) arg;
php_stream *s = SG(request_info).request_body;
post_var_data_t post_data;
if (s && SUCCESS == php_stream_rewind(s)) {
memset(&post_data, 0, sizeof(post_data));
while (!php_stream_eof(s)) {
char buf[SAPI_POST_HANDLER_BUFSIZ] = {0};
size_t len = php_stream_read(s, buf, SAPI_POST_HANDLER_BUFSIZ);
if (len && len != (size_t) -1) {
smart_str_appendl(&post_data.str, buf, len);
if (SUCCESS != add_post_vars(arr, &post_data, 0)) {
smart_str_free(&post_data.str);
return;
}
}
if (len != SAPI_POST_HANDLER_BUFSIZ){
break;
}
}
if (post_data.str.s) {
add_post_vars(arr, &post_data, 1);
smart_str_free(&post_data.str);
}
}
}
#undef SAPI_POST_HANDLER_BUFSIZ
SAPI_API SAPI_INPUT_FILTER_FUNC(php_default_input_filter)
{
/* TODO: check .ini setting here and apply user-defined input filter */
if(new_val_len) *new_val_len = val_len;
return 1;
}
SAPI_API SAPI_TREAT_DATA_FUNC(php_default_treat_data)
{
char *res = NULL, *var, *val, *separator = NULL;
const char *c_var;
zval array;
int free_buffer = 0;
char *strtok_buf = NULL;
zend_long count = 0;
ZVAL_UNDEF(&array);
switch (arg) {
case PARSE_POST:
case PARSE_GET:
case PARSE_COOKIE:
array_init(&array);
switch (arg) {
case PARSE_POST:
zval_ptr_dtor(&PG(http_globals)[TRACK_VARS_POST]);
ZVAL_COPY_VALUE(&PG(http_globals)[TRACK_VARS_POST], &array);
break;
case PARSE_GET:
zval_ptr_dtor(&PG(http_globals)[TRACK_VARS_GET]);
ZVAL_COPY_VALUE(&PG(http_globals)[TRACK_VARS_GET], &array);
break;
case PARSE_COOKIE:
zval_ptr_dtor(&PG(http_globals)[TRACK_VARS_COOKIE]);
ZVAL_COPY_VALUE(&PG(http_globals)[TRACK_VARS_COOKIE], &array);
break;
}
break;
default:
ZVAL_COPY_VALUE(&array, destArray);
break;
}
if (arg == PARSE_POST) {
sapi_handle_post(&array);
return;
}
if (arg == PARSE_GET) { /* GET data */
c_var = SG(request_info).query_string;
if (c_var && *c_var) {
res = (char *) estrdup(c_var);
free_buffer = 1;
} else {
free_buffer = 0;
}
} else if (arg == PARSE_COOKIE) { /* Cookie data */
c_var = SG(request_info).cookie_data;
if (c_var && *c_var) {
res = (char *) estrdup(c_var);
free_buffer = 1;
} else {
free_buffer = 0;
}
} else if (arg == PARSE_STRING) { /* String data */
res = str;
free_buffer = 1;
}
if (!res) {
return;
}
switch (arg) {
case PARSE_GET:
case PARSE_STRING:
separator = PG(arg_separator).input;
break;
case PARSE_COOKIE:
separator = ";\0";
break;
}
var = php_strtok_r(res, separator, &strtok_buf);
while (var) {
val = strchr(var, '=');
if (arg == PARSE_COOKIE) {
/* Remove leading spaces from cookie names, needed for multi-cookie header where ; can be followed by a space */
while (isspace(*var)) {
var++;
}
if (var == val || *var == '\0') {
goto next_cookie;
}
}
if (++count > PG(max_input_vars)) {
php_error_docref(NULL, E_WARNING, "Input variables exceeded " ZEND_LONG_FMT ". To increase the limit change max_input_vars in php.ini.", PG(max_input_vars));
break;
}
if (val) { /* have a value */
size_t val_len;
size_t new_val_len;
*val++ = '\0';
php_url_decode(var, strlen(var));
val_len = php_url_decode(val, strlen(val));
val = estrndup(val, val_len);
if (sapi_module.input_filter(arg, var, &val, val_len, &new_val_len)) {
php_register_variable_safe(var, val, new_val_len, &array);
}
efree(val);
} else {
size_t val_len;
size_t new_val_len;
php_url_decode(var, strlen(var));
val_len = 0;
val = estrndup("", val_len);
if (sapi_module.input_filter(arg, var, &val, val_len, &new_val_len)) {
php_register_variable_safe(var, val, new_val_len, &array);
}
efree(val);
}
next_cookie:
var = php_strtok_r(NULL, separator, &strtok_buf);
}
if (free_buffer) {
efree(res);
}
}
void _php_import_environment_variables(zval *array_ptr)
{
char buf[128];
char **env, *p, *t = buf;
size_t alloc_size = sizeof(buf);
unsigned long nlen; /* ptrdiff_t is not portable */
for (env = environ; env != NULL && *env != NULL; env++) {
p = strchr(*env, '=');
if (!p) { /* malformed entry? */
continue;
}
nlen = p - *env;
if (nlen >= alloc_size) {
alloc_size = nlen + 64;
t = (t == buf ? emalloc(alloc_size): erealloc(t, alloc_size));
}
memcpy(t, *env, nlen);
t[nlen] = '\0';
php_register_variable(t, p + 1, array_ptr);
}
if (t != buf && t != NULL) {
efree(t);
}
}
zend_bool php_std_auto_global_callback(char *name, uint32_t name_len)
{
zend_printf("%s\n", name);
return 0; /* don't rearm */
}
/* {{{ php_build_argv
*/
PHPAPI void php_build_argv(char *s, zval *track_vars_array)
{
zval arr, argc, tmp;
int count = 0;
char *ss, *space;
if (!(SG(request_info).argc || track_vars_array)) {
return;
}
array_init(&arr);
/* Prepare argv */
if (SG(request_info).argc) { /* are we in cli sapi? */
int i;
for (i = 0; i < SG(request_info).argc; i++) {
ZVAL_STRING(&tmp, SG(request_info).argv[i]);
if (zend_hash_next_index_insert(Z_ARRVAL(arr), &tmp) == NULL) {
zend_string_free(Z_STR(tmp));
}
}
} else if (s && *s) {
ss = s;
while (ss) {
space = strchr(ss, '+');
if (space) {
*space = '\0';
}
/* auto-type */
ZVAL_STRING(&tmp, ss);
count++;
if (zend_hash_next_index_insert(Z_ARRVAL(arr), &tmp) == NULL) {
zend_string_free(Z_STR(tmp));
}
if (space) {
*space = '+';
ss = space + 1;
} else {
ss = space;
}
}
}
/* prepare argc */
if (SG(request_info).argc) {
ZVAL_LONG(&argc, SG(request_info).argc);
} else {
ZVAL_LONG(&argc, count);
}
if (SG(request_info).argc) {
Z_ADDREF(arr);
zend_hash_str_update(&EG(symbol_table), "argv", sizeof("argv")-1, &arr);
zend_hash_str_add(&EG(symbol_table), "argc", sizeof("argc")-1, &argc);
}
if (track_vars_array && Z_TYPE_P(track_vars_array) == IS_ARRAY) {
Z_ADDREF(arr);
zend_hash_str_update(Z_ARRVAL_P(track_vars_array), "argv", sizeof("argv")-1, &arr);
zend_hash_str_update(Z_ARRVAL_P(track_vars_array), "argc", sizeof("argc")-1, &argc);
}
zval_ptr_dtor_nogc(&arr);
}
/* }}} */
/* {{{ php_register_server_variables
*/
static inline void php_register_server_variables(void)
{
zval request_time_float, request_time_long;
zval_ptr_dtor(&PG(http_globals)[TRACK_VARS_SERVER]);
array_init(&PG(http_globals)[TRACK_VARS_SERVER]);
/* Server variables */
if (sapi_module.register_server_variables) {
sapi_module.register_server_variables(&PG(http_globals)[TRACK_VARS_SERVER]);
}
/* PHP Authentication support */
if (SG(request_info).auth_user) {
php_register_variable("PHP_AUTH_USER", SG(request_info).auth_user, &PG(http_globals)[TRACK_VARS_SERVER]);
}
if (SG(request_info).auth_password) {
php_register_variable("PHP_AUTH_PW", SG(request_info).auth_password, &PG(http_globals)[TRACK_VARS_SERVER]);
}
if (SG(request_info).auth_digest) {
php_register_variable("PHP_AUTH_DIGEST", SG(request_info).auth_digest, &PG(http_globals)[TRACK_VARS_SERVER]);
}
/* store request init time */
ZVAL_DOUBLE(&request_time_float, sapi_get_request_time());
php_register_variable_ex("REQUEST_TIME_FLOAT", &request_time_float, &PG(http_globals)[TRACK_VARS_SERVER]);
ZVAL_LONG(&request_time_long, zend_dval_to_lval(Z_DVAL(request_time_float)));
php_register_variable_ex("REQUEST_TIME", &request_time_long, &PG(http_globals)[TRACK_VARS_SERVER]);
}
/* }}} */
/* {{{ php_autoglobal_merge
*/
static void php_autoglobal_merge(HashTable *dest, HashTable *src)
{
zval *src_entry, *dest_entry;
zend_string *string_key;
zend_ulong num_key;
int globals_check = (dest == (&EG(symbol_table)));
ZEND_HASH_FOREACH_KEY_VAL(src, num_key, string_key, src_entry) {
if (Z_TYPE_P(src_entry) != IS_ARRAY
|| (string_key && (dest_entry = zend_hash_find(dest, string_key)) == NULL)
|| (string_key == NULL && (dest_entry = zend_hash_index_find(dest, num_key)) == NULL)
|| Z_TYPE_P(dest_entry) != IS_ARRAY) {
Z_TRY_ADDREF_P(src_entry);
if (string_key) {
if (!globals_check || ZSTR_LEN(string_key) != sizeof("GLOBALS") - 1
|| memcmp(ZSTR_VAL(string_key), "GLOBALS", sizeof("GLOBALS") - 1)) {
zend_hash_update(dest, string_key, src_entry);
} else {
Z_TRY_DELREF_P(src_entry);
}
} else {
zend_hash_index_update(dest, num_key, src_entry);
}
} else {
SEPARATE_ARRAY(dest_entry);
php_autoglobal_merge(Z_ARRVAL_P(dest_entry), Z_ARRVAL_P(src_entry));
}
} ZEND_HASH_FOREACH_END();
}
/* }}} */
/* {{{ php_hash_environment
*/
PHPAPI int php_hash_environment(void)
{
memset(PG(http_globals), 0, sizeof(PG(http_globals)));
zend_activate_auto_globals();
if (PG(register_argc_argv)) {
php_build_argv(SG(request_info).query_string, &PG(http_globals)[TRACK_VARS_SERVER]);
}
return SUCCESS;
}
/* }}} */
static zend_bool php_auto_globals_create_get(zend_string *name)
{
if (PG(variables_order) && (strchr(PG(variables_order),'G') || strchr(PG(variables_order),'g'))) {
sapi_module.treat_data(PARSE_GET, NULL, NULL);
} else {
zval_ptr_dtor(&PG(http_globals)[TRACK_VARS_GET]);
array_init(&PG(http_globals)[TRACK_VARS_GET]);
}
zend_hash_update(&EG(symbol_table), name, &PG(http_globals)[TRACK_VARS_GET]);
Z_ADDREF(PG(http_globals)[TRACK_VARS_GET]);
return 0; /* don't rearm */
}
static zend_bool php_auto_globals_create_post(zend_string *name)
{
if (PG(variables_order) &&
(strchr(PG(variables_order),'P') || strchr(PG(variables_order),'p')) &&
!SG(headers_sent) &&
SG(request_info).request_method &&
!strcasecmp(SG(request_info).request_method, "POST")) {
sapi_module.treat_data(PARSE_POST, NULL, NULL);
} else {
zval_ptr_dtor(&PG(http_globals)[TRACK_VARS_POST]);
array_init(&PG(http_globals)[TRACK_VARS_POST]);
}
zend_hash_update(&EG(symbol_table), name, &PG(http_globals)[TRACK_VARS_POST]);
Z_ADDREF(PG(http_globals)[TRACK_VARS_POST]);
return 0; /* don't rearm */
}
static zend_bool php_auto_globals_create_cookie(zend_string *name)
{
if (PG(variables_order) && (strchr(PG(variables_order),'C') || strchr(PG(variables_order),'c'))) {
sapi_module.treat_data(PARSE_COOKIE, NULL, NULL);
} else {
zval_ptr_dtor(&PG(http_globals)[TRACK_VARS_COOKIE]);
array_init(&PG(http_globals)[TRACK_VARS_COOKIE]);
}
zend_hash_update(&EG(symbol_table), name, &PG(http_globals)[TRACK_VARS_COOKIE]);
Z_ADDREF(PG(http_globals)[TRACK_VARS_COOKIE]);
return 0; /* don't rearm */
}
static zend_bool php_auto_globals_create_files(zend_string *name)
{
if (Z_TYPE(PG(http_globals)[TRACK_VARS_FILES]) == IS_UNDEF) {
array_init(&PG(http_globals)[TRACK_VARS_FILES]);
}
zend_hash_update(&EG(symbol_table), name, &PG(http_globals)[TRACK_VARS_FILES]);
Z_ADDREF(PG(http_globals)[TRACK_VARS_FILES]);
return 0; /* don't rearm */
}
/* Upgly hack to fix HTTP_PROXY issue, see bug #72573 */
static void check_http_proxy(HashTable *var_table)
{
if (zend_hash_str_exists(var_table, "HTTP_PROXY", sizeof("HTTP_PROXY")-1)) {
char *local_proxy = getenv("HTTP_PROXY");
if (!local_proxy) {
zend_hash_str_del(var_table, "HTTP_PROXY", sizeof("HTTP_PROXY")-1);
} else {
zval local_zval;
ZVAL_STRING(&local_zval, local_proxy);
zend_hash_str_update(var_table, "HTTP_PROXY", sizeof("HTTP_PROXY")-1, &local_zval);
}
}
}
static zend_bool php_auto_globals_create_server(zend_string *name)
{
if (PG(variables_order) && (strchr(PG(variables_order),'S') || strchr(PG(variables_order),'s'))) {
php_register_server_variables();
if (PG(register_argc_argv)) {
if (SG(request_info).argc) {
zval *argc, *argv;
if ((argc = zend_hash_str_find_ind(&EG(symbol_table), "argc", sizeof("argc")-1)) != NULL &&
(argv = zend_hash_str_find_ind(&EG(symbol_table), "argv", sizeof("argv")-1)) != NULL) {
Z_ADDREF_P(argv);
zend_hash_str_update(Z_ARRVAL(PG(http_globals)[TRACK_VARS_SERVER]), "argv", sizeof("argv")-1, argv);
zend_hash_str_update(Z_ARRVAL(PG(http_globals)[TRACK_VARS_SERVER]), "argc", sizeof("argc")-1, argc);
}
} else {
php_build_argv(SG(request_info).query_string, &PG(http_globals)[TRACK_VARS_SERVER]);
}
}
} else {
zval_ptr_dtor(&PG(http_globals)[TRACK_VARS_SERVER]);
array_init(&PG(http_globals)[TRACK_VARS_SERVER]);
}
check_http_proxy(Z_ARRVAL(PG(http_globals)[TRACK_VARS_SERVER]));
zend_hash_update(&EG(symbol_table), name, &PG(http_globals)[TRACK_VARS_SERVER]);
Z_ADDREF(PG(http_globals)[TRACK_VARS_SERVER]);
/* TODO: TRACK_VARS_SERVER is modified in a number of places (e.g. phar) past this point,
* where rc>1 due to the $_SERVER global. Ideally this shouldn't happen, but for now we
* ignore this issue, as it would probably require larger changes. */
HT_ALLOW_COW_VIOLATION(Z_ARRVAL(PG(http_globals)[TRACK_VARS_SERVER]));
return 0; /* don't rearm */
}
static zend_bool php_auto_globals_create_env(zend_string *name)
{
zval_ptr_dtor(&PG(http_globals)[TRACK_VARS_ENV]);
array_init(&PG(http_globals)[TRACK_VARS_ENV]);
if (PG(variables_order) && (strchr(PG(variables_order),'E') || strchr(PG(variables_order),'e'))) {
php_import_environment_variables(&PG(http_globals)[TRACK_VARS_ENV]);
}
check_http_proxy(Z_ARRVAL(PG(http_globals)[TRACK_VARS_ENV]));
zend_hash_update(&EG(symbol_table), name, &PG(http_globals)[TRACK_VARS_ENV]);
Z_ADDREF(PG(http_globals)[TRACK_VARS_ENV]);
return 0; /* don't rearm */
}
static zend_bool php_auto_globals_create_request(zend_string *name)
{
zval form_variables;
unsigned char _gpc_flags[3] = {0, 0, 0};
char *p;
array_init(&form_variables);
if (PG(request_order) != NULL) {
p = PG(request_order);
} else {
p = PG(variables_order);
}
for (; p && *p; p++) {
switch (*p) {
case 'g':
case 'G':
if (!_gpc_flags[0]) {
php_autoglobal_merge(Z_ARRVAL(form_variables), Z_ARRVAL(PG(http_globals)[TRACK_VARS_GET]));
_gpc_flags[0] = 1;
}
break;
case 'p':
case 'P':
if (!_gpc_flags[1]) {
php_autoglobal_merge(Z_ARRVAL(form_variables), Z_ARRVAL(PG(http_globals)[TRACK_VARS_POST]));
_gpc_flags[1] = 1;
}
break;
case 'c':
case 'C':
if (!_gpc_flags[2]) {
php_autoglobal_merge(Z_ARRVAL(form_variables), Z_ARRVAL(PG(http_globals)[TRACK_VARS_COOKIE]));
_gpc_flags[2] = 1;
}
break;
}
}
zend_hash_update(&EG(symbol_table), name, &form_variables);
return 0;
}
void php_startup_auto_globals(void)
{
zend_register_auto_global(zend_string_init("_GET", sizeof("_GET")-1, 1), 0, php_auto_globals_create_get);
zend_register_auto_global(zend_string_init("_POST", sizeof("_POST")-1, 1), 0, php_auto_globals_create_post);
zend_register_auto_global(zend_string_init("_COOKIE", sizeof("_COOKIE")-1, 1), 0, php_auto_globals_create_cookie);
zend_register_auto_global(zend_string_init("_SERVER", sizeof("_SERVER")-1, 1), PG(auto_globals_jit), php_auto_globals_create_server);
zend_register_auto_global(zend_string_init("_ENV", sizeof("_ENV")-1, 1), PG(auto_globals_jit), php_auto_globals_create_env);
zend_register_auto_global(zend_string_init("_REQUEST", sizeof("_REQUEST")-1, 1), PG(auto_globals_jit), php_auto_globals_create_request);
zend_register_auto_global(zend_string_init("_FILES", sizeof("_FILES")-1, 1), 0, php_auto_globals_create_files);
}
/*
* Local variables:
* tab-width: 4
* c-basic-offset: 4
* End:
* vim600: sw=4 ts=4 fdm=marker
* vim<600: sw=4 ts=4
*/