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SAPI.c
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/*
+----------------------------------------------------------------------+
| PHP Version 5 |
+----------------------------------------------------------------------+
| Copyright (c) 1997-2016 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 |
| [email protected] so we can mail you a copy immediately. |
+----------------------------------------------------------------------+
| Original design: Shane Caraveo <[email protected]> |
| Authors: Andi Gutmans <[email protected]> |
| Zeev Suraski <[email protected]> |
+----------------------------------------------------------------------+
*/
/* $Id$ */
#include <ctype.h>
#include <sys/stat.h>
#include "php.h"
#include "SAPI.h"
#include "php_variables.h"
#include "php_ini.h"
#include "ext/standard/php_string.h"
#include "ext/standard/pageinfo.h"
#if (HAVE_PCRE || HAVE_BUNDLED_PCRE) && !defined(COMPILE_DL_PCRE)
#include "ext/pcre/php_pcre.h"
#endif
#ifdef ZTS
#include "TSRM.h"
#endif
#ifdef HAVE_SYS_TIME_H
#include <sys/time.h>
#elif defined(PHP_WIN32)
#include "win32/time.h"
#endif
#include "rfc1867.h"
#ifdef PHP_WIN32
#define STRCASECMP stricmp
#else
#define STRCASECMP strcasecmp
#endif
#include "php_content_types.h"
#ifdef ZTS
SAPI_API int sapi_globals_id;
#else
sapi_globals_struct sapi_globals;
#endif
static void sapi_globals_ctor(sapi_globals_struct *sapi_globals TSRMLS_DC)
{
memset(sapi_globals, 0, sizeof(*sapi_globals));
zend_hash_init_ex(&sapi_globals->known_post_content_types, 5, NULL, NULL, 1, 0);
php_setup_sapi_content_types(TSRMLS_C);
}
static void sapi_globals_dtor(sapi_globals_struct *sapi_globals TSRMLS_DC)
{
zend_hash_destroy(&sapi_globals->known_post_content_types);
}
/* True globals (no need for thread safety) */
SAPI_API sapi_module_struct sapi_module;
SAPI_API void sapi_startup(sapi_module_struct *sf)
{
#ifdef ZEND_SIGNALS
zend_signal_startup();
#endif
sf->ini_entries = NULL;
sapi_module = *sf;
#ifdef ZTS
ts_allocate_id(&sapi_globals_id, sizeof(sapi_globals_struct), (ts_allocate_ctor) sapi_globals_ctor, (ts_allocate_dtor) sapi_globals_dtor);
# ifdef PHP_WIN32
_configthreadlocale(_ENABLE_PER_THREAD_LOCALE);
# endif
#else
sapi_globals_ctor(&sapi_globals);
#endif
#ifdef PHP_WIN32
tsrm_win32_startup();
#endif
reentrancy_startup();
}
SAPI_API void sapi_shutdown(void)
{
#ifdef ZTS
ts_free_id(sapi_globals_id);
#else
sapi_globals_dtor(&sapi_globals);
#endif
reentrancy_shutdown();
#ifdef PHP_WIN32
tsrm_win32_shutdown();
#endif
}
SAPI_API void sapi_free_header(sapi_header_struct *sapi_header)
{
efree(sapi_header->header);
}
/* {{{ proto bool header_register_callback(mixed callback)
call a header function */
PHP_FUNCTION(header_register_callback)
{
zval *callback_func;
char *callback_name;
if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "z", &callback_func) == FAILURE) {
return;
}
if (!zend_is_callable(callback_func, 0, &callback_name TSRMLS_CC)) {
efree(callback_name);
RETURN_FALSE;
}
efree(callback_name);
if (SG(callback_func)) {
zval_ptr_dtor(&SG(callback_func));
SG(fci_cache) = empty_fcall_info_cache;
}
SG(callback_func) = callback_func;
Z_ADDREF_P(SG(callback_func));
RETURN_TRUE;
}
/* }}} */
static void sapi_run_header_callback(TSRMLS_D)
{
int error;
zend_fcall_info fci;
char *callback_name = NULL;
char *callback_error = NULL;
zval *retval_ptr = NULL;
if (zend_fcall_info_init(SG(callback_func), 0, &fci, &SG(fci_cache), &callback_name, &callback_error TSRMLS_CC) == SUCCESS) {
fci.retval_ptr_ptr = &retval_ptr;
error = zend_call_function(&fci, &SG(fci_cache) TSRMLS_CC);
if (error == FAILURE) {
goto callback_failed;
} else if (retval_ptr) {
zval_ptr_dtor(&retval_ptr);
}
} else {
callback_failed:
php_error_docref(NULL TSRMLS_CC, E_WARNING, "Could not call the sapi_header_callback");
}
if (callback_name) {
efree(callback_name);
}
if (callback_error) {
efree(callback_error);
}
}
SAPI_API void sapi_handle_post(void *arg TSRMLS_DC)
{
if (SG(request_info).post_entry && SG(request_info).content_type_dup) {
SG(request_info).post_entry->post_handler(SG(request_info).content_type_dup, arg TSRMLS_CC);
efree(SG(request_info).content_type_dup);
SG(request_info).content_type_dup = NULL;
}
}
static void sapi_read_post_data(TSRMLS_D)
{
sapi_post_entry *post_entry;
uint content_type_length = strlen(SG(request_info).content_type);
char *content_type = estrndup(SG(request_info).content_type, content_type_length);
char *p;
char oldchar=0;
void (*post_reader_func)(TSRMLS_D) = NULL;
/* dedicated implementation for increased performance:
* - Make the content type lowercase
* - Trim descriptive data, stay with the content-type only
*/
for (p=content_type; p<content_type+content_type_length; p++) {
switch (*p) {
case ';':
case ',':
case ' ':
content_type_length = p-content_type;
oldchar = *p;
*p = 0;
break;
default:
*p = tolower(*p);
break;
}
}
/* now try to find an appropriate POST content handler */
if (zend_hash_find(&SG(known_post_content_types), content_type,
content_type_length+1, (void **) &post_entry) == SUCCESS) {
/* found one, register it for use */
SG(request_info).post_entry = post_entry;
post_reader_func = post_entry->post_reader;
} else {
/* fallback */
SG(request_info).post_entry = NULL;
if (!sapi_module.default_post_reader) {
/* no default reader ? */
SG(request_info).content_type_dup = NULL;
sapi_module.sapi_error(E_WARNING, "Unsupported content type: '%s'", content_type);
return;
}
}
if (oldchar) {
*(p-1) = oldchar;
}
SG(request_info).content_type_dup = content_type;
if(post_reader_func) {
post_reader_func(TSRMLS_C);
}
if(sapi_module.default_post_reader) {
sapi_module.default_post_reader(TSRMLS_C);
}
}
SAPI_API int sapi_read_post_block(char *buffer, size_t buflen TSRMLS_DC)
{
int read_bytes;
if (!sapi_module.read_post) {
return -1;
}
read_bytes = sapi_module.read_post(buffer, buflen TSRMLS_CC);
if (read_bytes > 0) {
/* gogo */
SG(read_post_bytes) += read_bytes;
}
if (read_bytes < buflen) {
/* done */
SG(post_read) = 1;
}
return read_bytes;
}
SAPI_API SAPI_POST_READER_FUNC(sapi_read_standard_form_data)
{
if ((SG(post_max_size) > 0) && (SG(request_info).content_length > SG(post_max_size))) {
php_error_docref(NULL TSRMLS_CC, E_WARNING, "POST Content-Length of %ld bytes exceeds the limit of %ld bytes",
SG(request_info).content_length, SG(post_max_size));
return;
}
SG(request_info).request_body = php_stream_temp_create_ex(TEMP_STREAM_DEFAULT, SAPI_POST_BLOCK_SIZE, PG(upload_tmp_dir));
if (sapi_module.read_post) {
int read_bytes;
for (;;) {
char buffer[SAPI_POST_BLOCK_SIZE];
read_bytes = sapi_read_post_block(buffer, SAPI_POST_BLOCK_SIZE TSRMLS_CC);
if (read_bytes > 0) {
if (php_stream_write(SG(request_info).request_body, buffer, read_bytes) != read_bytes) {
/* if parts of the stream can't be written, purge it completely */
php_stream_truncate_set_size(SG(request_info).request_body, 0);
php_error_docref(NULL TSRMLS_CC, E_WARNING, "POST data can't be buffered; all data discarded");
break;
}
}
if ((SG(post_max_size) > 0) && (SG(read_post_bytes) > SG(post_max_size))) {
php_error_docref(NULL TSRMLS_CC, E_WARNING, "Actual POST length does not match Content-Length, and exceeds %ld bytes", SG(post_max_size));
break;
}
if (read_bytes < SAPI_POST_BLOCK_SIZE) {
/* done */
break;
}
}
php_stream_rewind(SG(request_info).request_body);
}
}
static inline char *get_default_content_type(uint prefix_len, uint *len TSRMLS_DC)
{
char *mimetype, *charset, *content_type;
uint mimetype_len, charset_len;
if (SG(default_mimetype)) {
mimetype = SG(default_mimetype);
mimetype_len = strlen(SG(default_mimetype));
} else {
mimetype = SAPI_DEFAULT_MIMETYPE;
mimetype_len = sizeof(SAPI_DEFAULT_MIMETYPE) - 1;
}
if (SG(default_charset)) {
charset = SG(default_charset);
charset_len = strlen(SG(default_charset));
} else {
charset = SAPI_DEFAULT_CHARSET;
charset_len = sizeof(SAPI_DEFAULT_CHARSET) - 1;
}
if (*charset && strncasecmp(mimetype, "text/", 5) == 0) {
char *p;
*len = prefix_len + mimetype_len + sizeof("; charset=") - 1 + charset_len;
content_type = (char*)emalloc(*len + 1);
p = content_type + prefix_len;
memcpy(p, mimetype, mimetype_len);
p += mimetype_len;
memcpy(p, "; charset=", sizeof("; charset=") - 1);
p += sizeof("; charset=") - 1;
memcpy(p, charset, charset_len + 1);
} else {
*len = prefix_len + mimetype_len;
content_type = (char*)emalloc(*len + 1);
memcpy(content_type + prefix_len, mimetype, mimetype_len + 1);
}
return content_type;
}
SAPI_API char *sapi_get_default_content_type(TSRMLS_D)
{
uint len;
return get_default_content_type(0, &len TSRMLS_CC);
}
SAPI_API void sapi_get_default_content_type_header(sapi_header_struct *default_header TSRMLS_DC)
{
uint len;
default_header->header = get_default_content_type(sizeof("Content-type: ")-1, &len TSRMLS_CC);
default_header->header_len = len;
memcpy(default_header->header, "Content-type: ", sizeof("Content-type: ") - 1);
}
/*
* Add charset on content-type header if the MIME type starts with
* "text/", the default_charset directive is not empty and
* there is not already a charset option in there.
*
* If "mimetype" is non-NULL, it should point to a pointer allocated
* with emalloc(). If a charset is added, the string will be
* re-allocated and the new length is returned. If mimetype is
* unchanged, 0 is returned.
*
*/
SAPI_API size_t sapi_apply_default_charset(char **mimetype, size_t len TSRMLS_DC)
{
char *charset, *newtype;
size_t newlen;
charset = SG(default_charset) ? SG(default_charset) : SAPI_DEFAULT_CHARSET;
if (*mimetype != NULL) {
if (*charset && strncmp(*mimetype, "text/", 5) == 0 && strstr(*mimetype, "charset=") == NULL) {
newlen = len + (sizeof(";charset=")-1) + strlen(charset);
newtype = emalloc(newlen + 1);
PHP_STRLCPY(newtype, *mimetype, newlen + 1, len);
strlcat(newtype, ";charset=", newlen + 1);
strlcat(newtype, charset, newlen + 1);
efree(*mimetype);
*mimetype = newtype;
return newlen;
}
}
return 0;
}
SAPI_API void sapi_activate_headers_only(TSRMLS_D)
{
if (SG(request_info).headers_read == 1)
return;
SG(request_info).headers_read = 1;
zend_llist_init(&SG(sapi_headers).headers, sizeof(sapi_header_struct),
(void (*)(void *)) sapi_free_header, 0);
SG(sapi_headers).send_default_content_type = 1;
/* SG(sapi_headers).http_response_code = 200; */
SG(sapi_headers).http_status_line = NULL;
SG(sapi_headers).mimetype = NULL;
SG(read_post_bytes) = 0;
SG(request_info).request_body = NULL;
SG(request_info).current_user = NULL;
SG(request_info).current_user_length = 0;
SG(request_info).no_headers = 0;
SG(request_info).post_entry = NULL;
SG(global_request_time) = 0;
/*
* It's possible to override this general case in the activate() callback,
* if necessary.
*/
if (SG(request_info).request_method && !strcmp(SG(request_info).request_method, "HEAD")) {
SG(request_info).headers_only = 1;
} else {
SG(request_info).headers_only = 0;
}
if (SG(server_context)) {
SG(request_info).cookie_data = sapi_module.read_cookies(TSRMLS_C);
if (sapi_module.activate) {
sapi_module.activate(TSRMLS_C);
}
}
if (sapi_module.input_filter_init ) {
sapi_module.input_filter_init(TSRMLS_C);
}
}
/*
* Called from php_request_startup() for every request.
*/
SAPI_API void sapi_activate(TSRMLS_D)
{
zend_llist_init(&SG(sapi_headers).headers, sizeof(sapi_header_struct), (void (*)(void *)) sapi_free_header, 0);
SG(sapi_headers).send_default_content_type = 1;
/*
SG(sapi_headers).http_response_code = 200;
*/
SG(sapi_headers).http_status_line = NULL;
SG(sapi_headers).mimetype = NULL;
SG(headers_sent) = 0;
SG(callback_run) = 0;
SG(callback_func) = NULL;
SG(read_post_bytes) = 0;
SG(request_info).request_body = NULL;
SG(request_info).current_user = NULL;
SG(request_info).current_user_length = 0;
SG(request_info).no_headers = 0;
SG(request_info).post_entry = NULL;
SG(request_info).proto_num = 1000; /* Default to HTTP 1.0 */
SG(global_request_time) = 0;
SG(post_read) = 0;
/* It's possible to override this general case in the activate() callback, if necessary. */
if (SG(request_info).request_method && !strcmp(SG(request_info).request_method, "HEAD")) {
SG(request_info).headers_only = 1;
} else {
SG(request_info).headers_only = 0;
}
SG(rfc1867_uploaded_files) = NULL;
/* Handle request method */
if (SG(server_context)) {
if (PG(enable_post_data_reading)
&& SG(request_info).content_type
&& SG(request_info).request_method
&& !strcmp(SG(request_info).request_method, "POST")) {
/* HTTP POST may contain form data to be processed into variables
* depending on given content type */
sapi_read_post_data(TSRMLS_C);
} else {
SG(request_info).content_type_dup = NULL;
}
/* Cookies */
SG(request_info).cookie_data = sapi_module.read_cookies(TSRMLS_C);
if (sapi_module.activate) {
sapi_module.activate(TSRMLS_C);
}
}
if (sapi_module.input_filter_init) {
sapi_module.input_filter_init(TSRMLS_C);
}
}
static void sapi_send_headers_free(TSRMLS_D)
{
if (SG(sapi_headers).http_status_line) {
efree(SG(sapi_headers).http_status_line);
SG(sapi_headers).http_status_line = NULL;
}
}
SAPI_API void sapi_deactivate(TSRMLS_D)
{
zend_llist_destroy(&SG(sapi_headers).headers);
if (SG(request_info).request_body) {
SG(request_info).request_body = NULL;
} else if (SG(server_context)) {
if (!SG(post_read)) {
/* make sure we've consumed all request input data */
char dummy[SAPI_POST_BLOCK_SIZE];
int read_bytes;
do {
read_bytes = sapi_read_post_block(dummy, SAPI_POST_BLOCK_SIZE TSRMLS_CC);
} while (SAPI_POST_BLOCK_SIZE == read_bytes);
}
}
if (SG(request_info).auth_user) {
efree(SG(request_info).auth_user);
}
if (SG(request_info).auth_password) {
efree(SG(request_info).auth_password);
}
if (SG(request_info).auth_digest) {
efree(SG(request_info).auth_digest);
}
if (SG(request_info).content_type_dup) {
efree(SG(request_info).content_type_dup);
}
if (SG(request_info).current_user) {
efree(SG(request_info).current_user);
}
if (sapi_module.deactivate) {
sapi_module.deactivate(TSRMLS_C);
}
if (SG(rfc1867_uploaded_files)) {
destroy_uploaded_files_hash(TSRMLS_C);
}
if (SG(sapi_headers).mimetype) {
efree(SG(sapi_headers).mimetype);
SG(sapi_headers).mimetype = NULL;
}
sapi_send_headers_free(TSRMLS_C);
SG(sapi_started) = 0;
SG(headers_sent) = 0;
SG(callback_run) = 0;
if (SG(callback_func)) {
zval_ptr_dtor(&SG(callback_func));
}
SG(request_info).headers_read = 0;
SG(global_request_time) = 0;
}
SAPI_API void sapi_initialize_empty_request(TSRMLS_D)
{
SG(server_context) = NULL;
SG(request_info).request_method = NULL;
SG(request_info).auth_digest = SG(request_info).auth_user = SG(request_info).auth_password = NULL;
SG(request_info).content_type_dup = NULL;
}
static int sapi_extract_response_code(const char *header_line)
{
int code = 200;
const char *ptr;
for (ptr = header_line; *ptr; ptr++) {
if (*ptr == ' ' && *(ptr + 1) != ' ') {
code = atoi(ptr + 1);
break;
}
}
return code;
}
static void sapi_update_response_code(int ncode TSRMLS_DC)
{
/* if the status code did not change, we do not want
to change the status line, and no need to change the code */
if (SG(sapi_headers).http_response_code == ncode) {
return;
}
if (SG(sapi_headers).http_status_line) {
efree(SG(sapi_headers).http_status_line);
SG(sapi_headers).http_status_line = NULL;
}
SG(sapi_headers).http_response_code = ncode;
}
/*
* since zend_llist_del_element only remove one matched item once,
* we should remove them by ourself
*/
static void sapi_remove_header(zend_llist *l, char *name, uint len) {
sapi_header_struct *header;
zend_llist_element *next;
zend_llist_element *current=l->head;
while (current) {
header = (sapi_header_struct *)(current->data);
next = current->next;
if (header->header_len > len && header->header[len] == ':'
&& !strncasecmp(header->header, name, len)) {
if (current->prev) {
current->prev->next = next;
} else {
l->head = next;
}
if (next) {
next->prev = current->prev;
} else {
l->tail = current->prev;
}
sapi_free_header(header);
efree(current);
--l->count;
}
current = next;
}
}
SAPI_API int sapi_add_header_ex(char *header_line, uint header_line_len, zend_bool duplicate, zend_bool replace TSRMLS_DC)
{
sapi_header_line ctr = {0};
int r;
ctr.line = header_line;
ctr.line_len = header_line_len;
r = sapi_header_op(replace ? SAPI_HEADER_REPLACE : SAPI_HEADER_ADD,
&ctr TSRMLS_CC);
if (!duplicate)
efree(header_line);
return r;
}
static void sapi_header_add_op(sapi_header_op_enum op, sapi_header_struct *sapi_header TSRMLS_DC)
{
if (!sapi_module.header_handler ||
(SAPI_HEADER_ADD & sapi_module.header_handler(sapi_header, op, &SG(sapi_headers) TSRMLS_CC))) {
if (op == SAPI_HEADER_REPLACE) {
char *colon_offset = strchr(sapi_header->header, ':');
if (colon_offset) {
char sav = *colon_offset;
*colon_offset = 0;
sapi_remove_header(&SG(sapi_headers).headers, sapi_header->header, strlen(sapi_header->header));
*colon_offset = sav;
}
}
zend_llist_add_element(&SG(sapi_headers).headers, (void *) sapi_header);
} else {
sapi_free_header(sapi_header);
}
}
SAPI_API int sapi_header_op(sapi_header_op_enum op, void *arg TSRMLS_DC)
{
sapi_header_struct sapi_header;
char *colon_offset;
char *header_line;
uint header_line_len;
int http_response_code;
if (SG(headers_sent) && !SG(request_info).no_headers) {
const char *output_start_filename = php_output_get_start_filename(TSRMLS_C);
int output_start_lineno = php_output_get_start_lineno(TSRMLS_C);
if (output_start_filename) {
sapi_module.sapi_error(E_WARNING, "Cannot modify header information - headers already sent by (output started at %s:%d)",
output_start_filename, output_start_lineno);
} else {
sapi_module.sapi_error(E_WARNING, "Cannot modify header information - headers already sent");
}
return FAILURE;
}
switch (op) {
case SAPI_HEADER_SET_STATUS:
sapi_update_response_code((int)(zend_intptr_t) arg TSRMLS_CC);
return SUCCESS;
case SAPI_HEADER_ADD:
case SAPI_HEADER_REPLACE:
case SAPI_HEADER_DELETE: {
sapi_header_line *p = arg;
if (!p->line || !p->line_len) {
return FAILURE;
}
header_line = p->line;
header_line_len = p->line_len;
http_response_code = p->response_code;
break;
}
case SAPI_HEADER_DELETE_ALL:
if (sapi_module.header_handler) {
sapi_module.header_handler(&sapi_header, op, &SG(sapi_headers) TSRMLS_CC);
}
zend_llist_clean(&SG(sapi_headers).headers);
return SUCCESS;
default:
return FAILURE;
}
header_line = estrndup(header_line, header_line_len);
/* cut off trailing spaces, linefeeds and carriage-returns */
if (header_line_len && isspace(header_line[header_line_len-1])) {
do {
header_line_len--;
} while(header_line_len && isspace(header_line[header_line_len-1]));
header_line[header_line_len]='\0';
}
if (op == SAPI_HEADER_DELETE) {
if (strchr(header_line, ':')) {
efree(header_line);
sapi_module.sapi_error(E_WARNING, "Header to delete may not contain colon.");
return FAILURE;
}
if (sapi_module.header_handler) {
sapi_header.header = header_line;
sapi_header.header_len = header_line_len;
sapi_module.header_handler(&sapi_header, op, &SG(sapi_headers) TSRMLS_CC);
}
sapi_remove_header(&SG(sapi_headers).headers, header_line, header_line_len);
efree(header_line);
return SUCCESS;
} else {
/* new line/NUL character safety check */
int i;
for (i = 0; i < header_line_len; i++) {
/* RFC 7230 ch. 3.2.4 deprecates folding support */
if (header_line[i] == '\n' || header_line[i] == '\r') {
efree(header_line);
sapi_module.sapi_error(E_WARNING, "Header may not contain "
"more than a single header, new line detected");
return FAILURE;
}
if (header_line[i] == '\0') {
efree(header_line);
sapi_module.sapi_error(E_WARNING, "Header may not contain NUL bytes");
return FAILURE;
}
}
}
sapi_header.header = header_line;
sapi_header.header_len = header_line_len;
/* Check the header for a few cases that we have special support for in SAPI */
if (header_line_len>=5
&& !strncasecmp(header_line, "HTTP/", 5)) {
/* filter out the response code */
sapi_update_response_code(sapi_extract_response_code(header_line) TSRMLS_CC);
/* sapi_update_response_code doesn't free the status line if the code didn't change */
if (SG(sapi_headers).http_status_line) {
efree(SG(sapi_headers).http_status_line);
}
SG(sapi_headers).http_status_line = header_line;
return SUCCESS;
} else {
colon_offset = strchr(header_line, ':');
if (colon_offset) {
*colon_offset = 0;
if (!STRCASECMP(header_line, "Content-Type")) {
char *ptr = colon_offset+1, *mimetype = NULL, *newheader;
size_t len = header_line_len - (ptr - header_line), newlen;
while (*ptr == ' ') {
ptr++;
len--;
}
/* Disable possible output compression for images */
if (!strncmp(ptr, "image/", sizeof("image/")-1)) {
zend_alter_ini_entry("zlib.output_compression", sizeof("zlib.output_compression"), "0", sizeof("0") - 1, PHP_INI_USER, PHP_INI_STAGE_RUNTIME);
}
mimetype = estrdup(ptr);
newlen = sapi_apply_default_charset(&mimetype, len TSRMLS_CC);
if (!SG(sapi_headers).mimetype){
SG(sapi_headers).mimetype = estrdup(mimetype);
}
if (newlen != 0) {
newlen += sizeof("Content-type: ");
newheader = emalloc(newlen);
PHP_STRLCPY(newheader, "Content-type: ", newlen, sizeof("Content-type: ")-1);
strlcat(newheader, mimetype, newlen);
sapi_header.header = newheader;
sapi_header.header_len = newlen - 1;
efree(header_line);
}
efree(mimetype);
SG(sapi_headers).send_default_content_type = 0;
} else if (!STRCASECMP(header_line, "Content-Length")) {
/* Script is setting Content-length. The script cannot reasonably
* know the size of the message body after compression, so it's best
* do disable compression altogether. This contributes to making scripts
* portable between setups that have and don't have zlib compression
* enabled globally. See req #44164 */
zend_alter_ini_entry("zlib.output_compression", sizeof("zlib.output_compression"),
"0", sizeof("0") - 1, PHP_INI_USER, PHP_INI_STAGE_RUNTIME);
} else if (!STRCASECMP(header_line, "Location")) {
if ((SG(sapi_headers).http_response_code < 300 ||
SG(sapi_headers).http_response_code > 399) &&
SG(sapi_headers).http_response_code != 201) {
/* Return a Found Redirect if one is not already specified */
if (http_response_code) { /* user specified redirect code */
sapi_update_response_code(http_response_code TSRMLS_CC);
} else if (SG(request_info).proto_num > 1000 &&
SG(request_info).request_method &&
strcmp(SG(request_info).request_method, "HEAD") &&
strcmp(SG(request_info).request_method, "GET")) {
sapi_update_response_code(303 TSRMLS_CC);
} else {
sapi_update_response_code(302 TSRMLS_CC);
}
}
} else if (!STRCASECMP(header_line, "WWW-Authenticate")) { /* HTTP Authentication */
sapi_update_response_code(401 TSRMLS_CC); /* authentication-required */
}
if (sapi_header.header==header_line) {
*colon_offset = ':';
}
}
}
if (http_response_code) {
sapi_update_response_code(http_response_code TSRMLS_CC);
}
sapi_header_add_op(op, &sapi_header TSRMLS_CC);
return SUCCESS;
}
SAPI_API int sapi_send_headers(TSRMLS_D)
{
int retval;
int ret = FAILURE;
if (SG(headers_sent) || SG(request_info).no_headers || SG(callback_run)) {
return SUCCESS;
}
/* Success-oriented. We set headers_sent to 1 here to avoid an infinite loop
* in case of an error situation.
*/
if (SG(sapi_headers).send_default_content_type && sapi_module.send_headers) {
sapi_header_struct default_header;
uint len;
SG(sapi_headers).mimetype = get_default_content_type(0, &len TSRMLS_CC);
default_header.header_len = sizeof("Content-type: ") - 1 + len;
default_header.header = emalloc(default_header.header_len + 1);
memcpy(default_header.header, "Content-type: ", sizeof("Content-type: ") - 1);
memcpy(default_header.header + sizeof("Content-type: ") - 1, SG(sapi_headers).mimetype, len + 1);
sapi_header_add_op(SAPI_HEADER_ADD, &default_header TSRMLS_CC);
SG(sapi_headers).send_default_content_type = 0;
}
if (SG(callback_func) && !SG(callback_run)) {
SG(callback_run) = 1;
sapi_run_header_callback(TSRMLS_C);
}
SG(headers_sent) = 1;
if (sapi_module.send_headers) {
retval = sapi_module.send_headers(&SG(sapi_headers) TSRMLS_CC);
} else {
retval = SAPI_HEADER_DO_SEND;
}
switch (retval) {
case SAPI_HEADER_SENT_SUCCESSFULLY:
ret = SUCCESS;
break;
case SAPI_HEADER_DO_SEND: {
sapi_header_struct http_status_line;
char buf[255];
if (SG(sapi_headers).http_status_line) {
http_status_line.header = SG(sapi_headers).http_status_line;
http_status_line.header_len = strlen(SG(sapi_headers).http_status_line);
} else {
http_status_line.header = buf;
http_status_line.header_len = slprintf(buf, sizeof(buf), "HTTP/1.0 %d X", SG(sapi_headers).http_response_code);
}
sapi_module.send_header(&http_status_line, SG(server_context) TSRMLS_CC);
}
zend_llist_apply_with_argument(&SG(sapi_headers).headers, (llist_apply_with_arg_func_t) sapi_module.send_header, SG(server_context) TSRMLS_CC);
if(SG(sapi_headers).send_default_content_type) {
sapi_header_struct default_header;
sapi_get_default_content_type_header(&default_header TSRMLS_CC);
sapi_module.send_header(&default_header, SG(server_context) TSRMLS_CC);
sapi_free_header(&default_header);
}
sapi_module.send_header(NULL, SG(server_context) TSRMLS_CC);
ret = SUCCESS;
break;
case SAPI_HEADER_SEND_FAILED:
SG(headers_sent) = 0;
ret = FAILURE;
break;
}
sapi_send_headers_free(TSRMLS_C);
return ret;
}
SAPI_API int sapi_register_post_entries(sapi_post_entry *post_entries TSRMLS_DC)
{
sapi_post_entry *p=post_entries;
while (p->content_type) {
if (sapi_register_post_entry(p TSRMLS_CC) == FAILURE) {
return FAILURE;
}
p++;
}
return SUCCESS;
}
SAPI_API int sapi_register_post_entry(sapi_post_entry *post_entry TSRMLS_DC)
{
if (SG(sapi_started) && EG(in_execution)) {
return FAILURE;
}
return zend_hash_add(&SG(known_post_content_types),
post_entry->content_type, post_entry->content_type_len+1,
(void *) post_entry, sizeof(sapi_post_entry), NULL);
}
SAPI_API void sapi_unregister_post_entry(sapi_post_entry *post_entry TSRMLS_DC)
{
if (SG(sapi_started) && EG(in_execution)) {
return;
}
zend_hash_del(&SG(known_post_content_types), post_entry->content_type,
post_entry->content_type_len+1);
}
SAPI_API int sapi_register_default_post_reader(void (*default_post_reader)(TSRMLS_D) TSRMLS_DC)
{
if (SG(sapi_started) && EG(in_execution)) {
return FAILURE;
}
sapi_module.default_post_reader = default_post_reader;
return SUCCESS;
}
SAPI_API int sapi_register_treat_data(void (*treat_data)(int arg, char *str, zval *destArray TSRMLS_DC) TSRMLS_DC)
{
if (SG(sapi_started) && EG(in_execution)) {
return FAILURE;
}
sapi_module.treat_data = treat_data;
return SUCCESS;
}
SAPI_API int sapi_register_input_filter(unsigned int (*input_filter)(int arg, char *var, char **val, unsigned int val_len, unsigned int *new_val_len TSRMLS_DC), unsigned int (*input_filter_init)(TSRMLS_D) TSRMLS_DC)
{
if (SG(sapi_started) && EG(in_execution)) {
return FAILURE;
}
sapi_module.input_filter = input_filter;
sapi_module.input_filter_init = input_filter_init;
return SUCCESS;
}
SAPI_API int sapi_flush(TSRMLS_D)
{