diff options
Diffstat (limited to 'main/php_variables.c')
| -rw-r--r-- | main/php_variables.c | 865 |
1 files changed, 865 insertions, 0 deletions
diff --git a/main/php_variables.c b/main/php_variables.c new file mode 100644 index 0000000..cf2b623 --- /dev/null +++ b/main/php_variables.c @@ -0,0 +1,865 @@ +/* + +----------------------------------------------------------------------+ + | PHP Version 5 | + +----------------------------------------------------------------------+ + | Copyright (c) 1997-2013 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 "php_variables.h" +#include "php_globals.h" +#include "php_content_types.h" +#include "SAPI.h" +#include "php_logos.h" +#include "zend_globals.h" + +/* for systems that need to override reading of environment variables */ +void _php_import_environment_variables(zval *array_ptr TSRMLS_DC); +PHPAPI void (*php_import_environment_variables)(zval *array_ptr TSRMLS_DC) = _php_import_environment_variables; + +PHPAPI void php_register_variable(char *var, char *strval, zval *track_vars_array TSRMLS_DC) +{ + php_register_variable_safe(var, strval, strlen(strval), track_vars_array TSRMLS_CC); +} + +/* binary-safe version */ +PHPAPI void php_register_variable_safe(char *var, char *strval, int str_len, zval *track_vars_array TSRMLS_DC) +{ + zval new_entry; + assert(strval != NULL); + + /* Prepare value */ + Z_STRLEN(new_entry) = str_len; + Z_STRVAL(new_entry) = estrndup(strval, Z_STRLEN(new_entry)); + Z_TYPE(new_entry) = IS_STRING; + + php_register_variable_ex(var, &new_entry, track_vars_array TSRMLS_CC); +} + +PHPAPI void php_register_variable_ex(char *var_name, zval *val, zval *track_vars_array TSRMLS_DC) +{ + char *p = NULL; + char *ip; /* index pointer */ + char *index; + char *var, *var_orig; + int 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) { + 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==' ') { + 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; + } + + /* GLOBALS hijack attempt, reject parameter */ + if (symtable1 == EG(active_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; + int 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_del(ht, var, var_len + 1); + } + + 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 TSRMLS_CC, E_WARNING, "Input variable nesting level exceeded %ld. 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) { + MAKE_STD_ZVAL(gpc_element); + array_init(gpc_element); + if (zend_hash_next_index_insert(symtable1, &gpc_element, sizeof(zval *), (void **) &gpc_element_p) == FAILURE) { + zval_ptr_dtor(&gpc_element); + zval_dtor(val); + free_alloca(var_orig, use_heap); + return; + } + } else { + if (zend_symtable_find(symtable1, index, index_len + 1, (void **) &gpc_element_p) == FAILURE + || Z_TYPE_PP(gpc_element_p) != IS_ARRAY) { + MAKE_STD_ZVAL(gpc_element); + array_init(gpc_element); + zend_symtable_update(symtable1, index, index_len + 1, &gpc_element, sizeof(zval *), (void **) &gpc_element_p); + } + } + symtable1 = Z_ARRVAL_PP(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: + MAKE_STD_ZVAL(gpc_element); + gpc_element->value = val->value; + Z_TYPE_P(gpc_element) = Z_TYPE_P(val); + if (!index) { + if (zend_hash_next_index_insert(symtable1, &gpc_element, sizeof(zval *), (void **) &gpc_element_p) == FAILURE) { + 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 (PG(http_globals)[TRACK_VARS_COOKIE] && + symtable1 == Z_ARRVAL_P(PG(http_globals)[TRACK_VARS_COOKIE]) && + zend_symtable_exists(symtable1, index, index_len + 1)) { + zval_ptr_dtor(&gpc_element); + } else { + zend_symtable_update(symtable1, index, index_len + 1, &gpc_element, sizeof(zval *), (void **) &gpc_element_p); + } + } + } + free_alloca(var_orig, use_heap); +} + +SAPI_API SAPI_POST_HANDLER_FUNC(php_std_post_handler) +{ + char *var, *val, *e, *s, *p; + zval *array_ptr = (zval *) arg; + long count = 0; + + if (SG(request_info).post_data == NULL) { + return; + } + + s = SG(request_info).post_data; + e = s + SG(request_info).post_data_length; + + while (s < e && (p = memchr(s, '&', (e - s)))) { +last_value: + if ((val = memchr(s, '=', (p - s)))) { /* have a value */ + unsigned int val_len, new_val_len; + + if (++count > PG(max_input_vars)) { + php_error_docref(NULL TSRMLS_CC, E_WARNING, "Input variables exceeded %ld. To increase the limit change max_input_vars in php.ini.", PG(max_input_vars)); + return; + } + var = s; + + php_url_decode(var, (val - s)); + val++; + val_len = php_url_decode(val, (p - val)); + val = estrndup(val, val_len); + if (sapi_module.input_filter(PARSE_POST, var, &val, val_len, &new_val_len TSRMLS_CC)) { + php_register_variable_safe(var, val, new_val_len, array_ptr TSRMLS_CC); + } + efree(val); + } + s = p + 1; + } + if (s < e) { + p = e; + goto last_value; + } +} + +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_ptr; + int free_buffer = 0; + char *strtok_buf = NULL; + long count = 0; + + switch (arg) { + case PARSE_POST: + case PARSE_GET: + case PARSE_COOKIE: + ALLOC_ZVAL(array_ptr); + array_init(array_ptr); + INIT_PZVAL(array_ptr); + switch (arg) { + case PARSE_POST: + if (PG(http_globals)[TRACK_VARS_POST]) { + zval_ptr_dtor(&PG(http_globals)[TRACK_VARS_POST]); + } + PG(http_globals)[TRACK_VARS_POST] = array_ptr; + break; + case PARSE_GET: + if (PG(http_globals)[TRACK_VARS_GET]) { + zval_ptr_dtor(&PG(http_globals)[TRACK_VARS_GET]); + } + PG(http_globals)[TRACK_VARS_GET] = array_ptr; + break; + case PARSE_COOKIE: + if (PG(http_globals)[TRACK_VARS_COOKIE]) { + zval_ptr_dtor(&PG(http_globals)[TRACK_VARS_COOKIE]); + } + PG(http_globals)[TRACK_VARS_COOKIE] = array_ptr; + break; + } + break; + default: + array_ptr = destArray; + break; + } + + if (arg == PARSE_POST) { + sapi_handle_post(array_ptr TSRMLS_CC); + 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 = (char *) estrdup(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 TSRMLS_CC, E_WARNING, "Input variables exceeded %ld. To increase the limit change max_input_vars in php.ini.", PG(max_input_vars)); + break; + } + + if (val) { /* have a value */ + int val_len; + unsigned int 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 TSRMLS_CC)) { + php_register_variable_safe(var, val, new_val_len, array_ptr TSRMLS_CC); + } + efree(val); + } else { + int val_len; + unsigned int 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 TSRMLS_CC)) { + php_register_variable_safe(var, val, new_val_len, array_ptr TSRMLS_CC); + } + efree(val); + } +next_cookie: + var = php_strtok_r(NULL, separator, &strtok_buf); + } + + if (arg != PARSE_COOKIE) { + efree(separator); + } + + if (free_buffer) { + efree(res); + } +} + +void _php_import_environment_variables(zval *array_ptr TSRMLS_DC) +{ + 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 TSRMLS_CC); + } + if (t != buf && t != NULL) { + efree(t); + } +} + +zend_bool php_std_auto_global_callback(char *name, uint name_len TSRMLS_DC) +{ + zend_printf("%s\n", name); + return 0; /* don't rearm */ +} + +/* {{{ php_build_argv + */ +static void php_build_argv(char *s, zval *track_vars_array TSRMLS_DC) +{ + zval *arr, *argc, *tmp; + int count = 0; + char *ss, *space; + + if (!(SG(request_info).argc || track_vars_array)) { + return; + } + + ALLOC_INIT_ZVAL(arr); + 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++) { + ALLOC_ZVAL(tmp); + Z_TYPE_P(tmp) = IS_STRING; + Z_STRLEN_P(tmp) = strlen(SG(request_info).argv[i]); + Z_STRVAL_P(tmp) = estrndup(SG(request_info).argv[i], Z_STRLEN_P(tmp)); + INIT_PZVAL(tmp); + if (zend_hash_next_index_insert(Z_ARRVAL_P(arr), &tmp, sizeof(zval *), NULL) == FAILURE) { + if (Z_TYPE_P(tmp) == IS_STRING) { + efree(Z_STRVAL_P(tmp)); + } + } + } + } else if (s && *s) { + ss = s; + while (ss) { + space = strchr(ss, '+'); + if (space) { + *space = '\0'; + } + /* auto-type */ + ALLOC_ZVAL(tmp); + Z_TYPE_P(tmp) = IS_STRING; + Z_STRLEN_P(tmp) = strlen(ss); + Z_STRVAL_P(tmp) = estrndup(ss, Z_STRLEN_P(tmp)); + INIT_PZVAL(tmp); + count++; + if (zend_hash_next_index_insert(Z_ARRVAL_P(arr), &tmp, sizeof(zval *), NULL) == FAILURE) { + if (Z_TYPE_P(tmp) == IS_STRING) { + efree(Z_STRVAL_P(tmp)); + } + } + if (space) { + *space = '+'; + ss = space + 1; + } else { + ss = space; + } + } + } + + /* prepare argc */ + ALLOC_INIT_ZVAL(argc); + if (SG(request_info).argc) { + Z_LVAL_P(argc) = SG(request_info).argc; + } else { + Z_LVAL_P(argc) = count; + } + Z_TYPE_P(argc) = IS_LONG; + + if (SG(request_info).argc) { + Z_ADDREF_P(arr); + Z_ADDREF_P(argc); + zend_hash_update(&EG(symbol_table), "argv", sizeof("argv"), &arr, sizeof(zval *), NULL); + zend_hash_add(&EG(symbol_table), "argc", sizeof("argc"), &argc, sizeof(zval *), NULL); + } + if (track_vars_array) { + Z_ADDREF_P(arr); + Z_ADDREF_P(argc); + zend_hash_update(Z_ARRVAL_P(track_vars_array), "argv", sizeof("argv"), &arr, sizeof(zval *), NULL); + zend_hash_update(Z_ARRVAL_P(track_vars_array), "argc", sizeof("argc"), &argc, sizeof(zval *), NULL); + } + zval_ptr_dtor(&arr); + zval_ptr_dtor(&argc); +} +/* }}} */ + +/* {{{ php_handle_special_queries + */ +PHPAPI int php_handle_special_queries(TSRMLS_D) +{ + if (PG(expose_php) && SG(request_info).query_string && SG(request_info).query_string[0] == '=') { + if (php_info_logos(SG(request_info).query_string + 1 TSRMLS_CC)) { + return 1; + } else if (!strcmp(SG(request_info).query_string + 1, PHP_CREDITS_GUID)) { + php_print_credits(PHP_CREDITS_ALL TSRMLS_CC); + return 1; + } + } + return 0; +} +/* }}} */ + +/* {{{ php_register_server_variables + */ +static inline void php_register_server_variables(TSRMLS_D) +{ + zval *array_ptr = NULL; + + ALLOC_ZVAL(array_ptr); + array_init(array_ptr); + INIT_PZVAL(array_ptr); + if (PG(http_globals)[TRACK_VARS_SERVER]) { + zval_ptr_dtor(&PG(http_globals)[TRACK_VARS_SERVER]); + } + PG(http_globals)[TRACK_VARS_SERVER] = array_ptr; + + /* Server variables */ + if (sapi_module.register_server_variables) { + sapi_module.register_server_variables(array_ptr TSRMLS_CC); + } + + /* PHP Authentication support */ + if (SG(request_info).auth_user) { + php_register_variable("PHP_AUTH_USER", SG(request_info).auth_user, array_ptr TSRMLS_CC); + } + if (SG(request_info).auth_password) { + php_register_variable("PHP_AUTH_PW", SG(request_info).auth_password, array_ptr TSRMLS_CC); + } + if (SG(request_info).auth_digest) { + php_register_variable("PHP_AUTH_DIGEST", SG(request_info).auth_digest, array_ptr TSRMLS_CC); + } + /* store request init time */ + { + zval request_time_float, request_time_long; + Z_TYPE(request_time_float) = IS_DOUBLE; + Z_DVAL(request_time_float) = sapi_get_request_time(TSRMLS_C); + php_register_variable_ex("REQUEST_TIME_FLOAT", &request_time_float, array_ptr TSRMLS_CC); + Z_TYPE(request_time_long) = IS_LONG; + Z_LVAL(request_time_long) = zend_dval_to_lval(Z_DVAL(request_time_float)); + php_register_variable_ex("REQUEST_TIME", &request_time_long, array_ptr TSRMLS_CC); + } + +} +/* }}} */ + +/* {{{ php_autoglobal_merge + */ +static void php_autoglobal_merge(HashTable *dest, HashTable *src TSRMLS_DC) +{ + zval **src_entry, **dest_entry; + char *string_key; + uint string_key_len; + ulong num_key; + HashPosition pos; + int key_type; + int globals_check = (dest == (&EG(symbol_table))); + + zend_hash_internal_pointer_reset_ex(src, &pos); + while (zend_hash_get_current_data_ex(src, (void **)&src_entry, &pos) == SUCCESS) { + key_type = zend_hash_get_current_key_ex(src, &string_key, &string_key_len, &num_key, 0, &pos); + if (Z_TYPE_PP(src_entry) != IS_ARRAY + || (key_type == HASH_KEY_IS_STRING && zend_hash_find(dest, string_key, string_key_len, (void **) &dest_entry) != SUCCESS) + || (key_type == HASH_KEY_IS_LONG && zend_hash_index_find(dest, num_key, (void **)&dest_entry) != SUCCESS) + || Z_TYPE_PP(dest_entry) != IS_ARRAY + ) { + Z_ADDREF_PP(src_entry); + if (key_type == HASH_KEY_IS_STRING) { + if (!globals_check || string_key_len != sizeof("GLOBALS") || memcmp(string_key, "GLOBALS", sizeof("GLOBALS") - 1)) { + zend_hash_update(dest, string_key, string_key_len, src_entry, sizeof(zval *), NULL); + } else { + Z_DELREF_PP(src_entry); + } + } else { + zend_hash_index_update(dest, num_key, src_entry, sizeof(zval *), NULL); + } + } else { + SEPARATE_ZVAL(dest_entry); + php_autoglobal_merge(Z_ARRVAL_PP(dest_entry), Z_ARRVAL_PP(src_entry) TSRMLS_CC); + } + zend_hash_move_forward_ex(src, &pos); + } +} +/* }}} */ + +static zend_bool php_auto_globals_create_server(const char *name, uint name_len TSRMLS_DC); +static zend_bool php_auto_globals_create_env(const char *name, uint name_len TSRMLS_DC); +static zend_bool php_auto_globals_create_request(const char *name, uint name_len TSRMLS_DC); + +/* {{{ php_hash_environment + */ +int php_hash_environment(TSRMLS_D) +{ + memset(PG(http_globals), 0, sizeof(PG(http_globals))); + zend_activate_auto_globals(TSRMLS_C); + if (PG(register_argc_argv)) { + php_build_argv(SG(request_info).query_string, PG(http_globals)[TRACK_VARS_SERVER] TSRMLS_CC); + } + return SUCCESS; +} +/* }}} */ + +static zend_bool php_auto_globals_create_get(const char *name, uint name_len TSRMLS_DC) +{ + zval *vars; + + if (PG(variables_order) && (strchr(PG(variables_order),'G') || strchr(PG(variables_order),'g'))) { + sapi_module.treat_data(PARSE_GET, NULL, NULL TSRMLS_CC); + vars = PG(http_globals)[TRACK_VARS_GET]; + } else { + ALLOC_ZVAL(vars); + array_init(vars); + INIT_PZVAL(vars); + if (PG(http_globals)[TRACK_VARS_GET]) { + zval_ptr_dtor(&PG(http_globals)[TRACK_VARS_GET]); + } + PG(http_globals)[TRACK_VARS_GET] = vars; + } + + zend_hash_update(&EG(symbol_table), name, name_len + 1, &vars, sizeof(zval *), NULL); + Z_ADDREF_P(vars); + + return 0; /* don't rearm */ +} + +static zend_bool php_auto_globals_create_post(const char *name, uint name_len TSRMLS_DC) +{ + zval *vars; + + 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 TSRMLS_CC); + vars = PG(http_globals)[TRACK_VARS_POST]; + } else { + ALLOC_ZVAL(vars); + array_init(vars); + INIT_PZVAL(vars); + if (PG(http_globals)[TRACK_VARS_POST]) { + zval_ptr_dtor(&PG(http_globals)[TRACK_VARS_POST]); + } + PG(http_globals)[TRACK_VARS_POST] = vars; + } + + zend_hash_update(&EG(symbol_table), name, name_len + 1, &vars, sizeof(zval *), NULL); + Z_ADDREF_P(vars); + + return 0; /* don't rearm */ +} + +static zend_bool php_auto_globals_create_cookie(const char *name, uint name_len TSRMLS_DC) +{ + zval *vars; + + if (PG(variables_order) && (strchr(PG(variables_order),'C') || strchr(PG(variables_order),'c'))) { + sapi_module.treat_data(PARSE_COOKIE, NULL, NULL TSRMLS_CC); + vars = PG(http_globals)[TRACK_VARS_COOKIE]; + } else { + ALLOC_ZVAL(vars); + array_init(vars); + INIT_PZVAL(vars); + if (PG(http_globals)[TRACK_VARS_COOKIE]) { + zval_ptr_dtor(&PG(http_globals)[TRACK_VARS_COOKIE]); + } + PG(http_globals)[TRACK_VARS_COOKIE] = vars; + } + + zend_hash_update(&EG(symbol_table), name, name_len + 1, &vars, sizeof(zval *), NULL); + Z_ADDREF_P(vars); + + return 0; /* don't rearm */ +} + +static zend_bool php_auto_globals_create_files(const char *name, uint name_len TSRMLS_DC) +{ + zval *vars; + + if (PG(http_globals)[TRACK_VARS_FILES]) { + vars = PG(http_globals)[TRACK_VARS_FILES]; + } else { + ALLOC_ZVAL(vars); + array_init(vars); + INIT_PZVAL(vars); + PG(http_globals)[TRACK_VARS_FILES] = vars; + } + + zend_hash_update(&EG(symbol_table), name, name_len + 1, &vars, sizeof(zval *), NULL); + Z_ADDREF_P(vars); + + return 0; /* don't rearm */ +} + +static zend_bool php_auto_globals_create_server(const char *name, uint name_len TSRMLS_DC) +{ + if (PG(variables_order) && (strchr(PG(variables_order),'S') || strchr(PG(variables_order),'s'))) { + php_register_server_variables(TSRMLS_C); + + if (PG(register_argc_argv)) { + if (SG(request_info).argc) { + zval **argc, **argv; + + if (zend_hash_find(&EG(symbol_table), "argc", sizeof("argc"), (void**)&argc) == SUCCESS && + zend_hash_find(&EG(symbol_table), "argv", sizeof("argv"), (void**)&argv) == SUCCESS) { + Z_ADDREF_PP(argc); + Z_ADDREF_PP(argv); + zend_hash_update(Z_ARRVAL_P(PG(http_globals)[TRACK_VARS_SERVER]), "argv", sizeof("argv"), argv, sizeof(zval *), NULL); + zend_hash_update(Z_ARRVAL_P(PG(http_globals)[TRACK_VARS_SERVER]), "argc", sizeof("argc"), argc, sizeof(zval *), NULL); + } + } else { + php_build_argv(SG(request_info).query_string, PG(http_globals)[TRACK_VARS_SERVER] TSRMLS_CC); + } + } + + } else { + zval *server_vars=NULL; + ALLOC_ZVAL(server_vars); + array_init(server_vars); + INIT_PZVAL(server_vars); + if (PG(http_globals)[TRACK_VARS_SERVER]) { + zval_ptr_dtor(&PG(http_globals)[TRACK_VARS_SERVER]); + } + PG(http_globals)[TRACK_VARS_SERVER] = server_vars; + } + + zend_hash_update(&EG(symbol_table), name, name_len + 1, &PG(http_globals)[TRACK_VARS_SERVER], sizeof(zval *), NULL); + Z_ADDREF_P(PG(http_globals)[TRACK_VARS_SERVER]); + + return 0; /* don't rearm */ +} + +static zend_bool php_auto_globals_create_env(const char *name, uint name_len TSRMLS_DC) +{ + zval *env_vars = NULL; + ALLOC_ZVAL(env_vars); + array_init(env_vars); + INIT_PZVAL(env_vars); + if (PG(http_globals)[TRACK_VARS_ENV]) { + zval_ptr_dtor(&PG(http_globals)[TRACK_VARS_ENV]); + } + PG(http_globals)[TRACK_VARS_ENV] = env_vars; + + if (PG(variables_order) && (strchr(PG(variables_order),'E') || strchr(PG(variables_order),'e'))) { + php_import_environment_variables(PG(http_globals)[TRACK_VARS_ENV] TSRMLS_CC); + } + + zend_hash_update(&EG(symbol_table), name, name_len + 1, &PG(http_globals)[TRACK_VARS_ENV], sizeof(zval *), NULL); + Z_ADDREF_P(PG(http_globals)[TRACK_VARS_ENV]); + + return 0; /* don't rearm */ +} + +static zend_bool php_auto_globals_create_request(const char *name, uint name_len TSRMLS_DC) +{ + zval *form_variables; + unsigned char _gpc_flags[3] = {0, 0, 0}; + char *p; + + ALLOC_ZVAL(form_variables); + array_init(form_variables); + INIT_PZVAL(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_P(form_variables), Z_ARRVAL_P(PG(http_globals)[TRACK_VARS_GET]) TSRMLS_CC); + _gpc_flags[0] = 1; + } + break; + case 'p': + case 'P': + if (!_gpc_flags[1]) { + php_autoglobal_merge(Z_ARRVAL_P(form_variables), Z_ARRVAL_P(PG(http_globals)[TRACK_VARS_POST]) TSRMLS_CC); + _gpc_flags[1] = 1; + } + break; + case 'c': + case 'C': + if (!_gpc_flags[2]) { + php_autoglobal_merge(Z_ARRVAL_P(form_variables), Z_ARRVAL_P(PG(http_globals)[TRACK_VARS_COOKIE]) TSRMLS_CC); + _gpc_flags[2] = 1; + } + break; + } + } + + zend_hash_update(&EG(symbol_table), name, name_len + 1, &form_variables, sizeof(zval *), NULL); + return 0; +} + +void php_startup_auto_globals(TSRMLS_D) +{ + zend_register_auto_global(ZEND_STRL("_GET"), 0, php_auto_globals_create_get TSRMLS_CC); + zend_register_auto_global(ZEND_STRL("_POST"), 0, php_auto_globals_create_post TSRMLS_CC); + zend_register_auto_global(ZEND_STRL("_COOKIE"), 0, php_auto_globals_create_cookie TSRMLS_CC); + zend_register_auto_global(ZEND_STRL("_SERVER"), PG(auto_globals_jit), php_auto_globals_create_server TSRMLS_CC); + zend_register_auto_global(ZEND_STRL("_ENV"), PG(auto_globals_jit), php_auto_globals_create_env TSRMLS_CC); + zend_register_auto_global(ZEND_STRL("_REQUEST"), PG(auto_globals_jit), php_auto_globals_create_request TSRMLS_CC); + zend_register_auto_global(ZEND_STRL("_FILES"), 0, php_auto_globals_create_files TSRMLS_CC); +} + +/* + * Local variables: + * tab-width: 4 + * c-basic-offset: 4 + * End: + * vim600: sw=4 ts=4 fdm=marker + * vim<600: sw=4 ts=4 + */ |