php-src/main/SAPI.c at in-place-array-modification-squashed · ndossche/php-src · GitHub

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+----------------------------------------------------------------------+

| Copyright (c) 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: |

| https://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. |

+----------------------------------------------------------------------+

| Original design: Shane Caraveo <shane@caraveo.com> |

| Authors: Andi Gutmans <andi@php.net> |

| Zeev Suraski <zeev@php.net> |

+----------------------------------------------------------------------+

#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"

#include "ext/pcre/php_pcre.h"

#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"

#include "php_content_types.h"

#ifdef ZTS

SAPI_API int sapi_globals_id;

SAPI_API size_t sapi_globals_offset;

#else

sapi_globals_struct sapi_globals;

#endif

static void _type_dtor(zval *zv)

{

free(Z_PTR_P(zv));

}

static void sapi_globals_ctor(sapi_globals_struct *sapi_globals)

{

memset(sapi_globals, 0, sizeof(*sapi_globals));

zend_hash_init(&sapi_globals->known_post_content_types, 8, NULL, _type_dtor, 1);

php_setup_sapi_content_types();

}

static void sapi_globals_dtor(sapi_globals_struct *sapi_globals)

{

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)

{

sf->ini_entries = NULL;

sapi_module = *sf;

#ifdef ZTS

ts_allocate_fast_id(&sapi_globals_id, &sapi_globals_offset, 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);

}

/* {{{ call a header function */

PHP_FUNCTION(header_register_callback)

{

zend_fcall_info fci;

zend_fcall_info_cache fcc;

if (zend_parse_parameters(ZEND_NUM_ARGS(), "f", &fci, &fcc) == FAILURE) {

RETURN_THROWS();

}

if (Z_TYPE(SG(callback_func)) != IS_UNDEF) {

zval_ptr_dtor(&SG(callback_func));

SG(fci_cache) = empty_fcall_info_cache;

}

/* Don't store callback if headers have already been sent:

* It won't get used and we won't have a chance to release it. */

if (!SG(headers_sent)) {

ZVAL_COPY(&SG(callback_func), &fci.function_name);

}

RETURN_TRUE;

}

/* }}} */

static void sapi_run_header_callback(zval *callback)

{

int error;

zend_fcall_info fci;

char *callback_error = NULL;

zval retval;

if (zend_fcall_info_init(callback, 0, &fci, &SG(fci_cache), NULL, &callback_error) == SUCCESS) {

fci.retval = &retval;

error = zend_call_function(&fci, &SG(fci_cache));

if (error == FAILURE) {

goto callback_failed;

} else {

zval_ptr_dtor(&retval);

}

} else {

callback_failed:

php_error_docref(NULL, E_WARNING, "Could not call the sapi_header_callback");

}

if (callback_error) {

efree(callback_error);

}

SAPI_API void sapi_handle_post(void *arg)

{

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);

efree(SG(request_info).content_type_dup);

SG(request_info).content_type_dup = NULL;

}

static void sapi_read_post_data(void)

{

sapi_post_entry *post_entry;

uint32_t content_type_length = (uint32_t)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)(void) = 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 ((post_entry = zend_hash_str_find_ptr(&SG(known_post_content_types), content_type,

content_type_length)) != NULL) {

/* 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 (UNEXPECTED(!sapi_module.default_post_reader)) {

/* this should not happen as there should always be a default_post_reader */

SG(request_info).content_type_dup = NULL;

sapi_module.sapi_error(E_WARNING, "Unsupported content type: '%s'", content_type);

efree(content_type);

return;

}

if (oldchar) {

*(p-1) = oldchar;

}

/* the content_type_dup is not set at this stage so no need to try to free it first */

SG(request_info).content_type_dup = content_type;

if(post_reader_func) {

post_reader_func();

}

if(sapi_module.default_post_reader) {

sapi_module.default_post_reader();

}

SAPI_API size_t sapi_read_post_block(char *buffer, size_t buflen)

{

size_t read_bytes;

if (!sapi_module.read_post) {

return 0;

}

read_bytes = sapi_module.read_post(buffer, buflen);

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, E_WARNING, "POST Content-Length of " ZEND_LONG_FMT " bytes exceeds the limit of " ZEND_LONG_FMT " 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) {

size_t read_bytes;

for (;;) {

char buffer[SAPI_POST_BLOCK_SIZE];

read_bytes = sapi_read_post_block(buffer, SAPI_POST_BLOCK_SIZE);

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, 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, E_WARNING, "Actual POST length does not match Content-Length, and exceeds " ZEND_LONG_FMT " 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(uint32_t prefix_len, uint32_t *len)

{

char *mimetype, *charset, *content_type;

uint32_t mimetype_len, charset_len;

if (SG(default_mimetype)) {

mimetype = SG(default_mimetype);

mimetype_len = (uint32_t)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 = (uint32_t)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(void)

{

uint32_t len;

return get_default_content_type(0, &len);

}

SAPI_API void sapi_get_default_content_type_header(sapi_header_struct *default_header)

{

uint32_t len;

default_header->header = get_default_content_type(sizeof("Content-type: ")-1, &len);

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)

{

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(void)

{

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();

if (sapi_module.activate) {

sapi_module.activate();

}

if (sapi_module.input_filter_init ) {

sapi_module.input_filter_init();

}

* Called from php_request_startup() for every request.

SAPI_API void sapi_activate(void)

{

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;

ZVAL_UNDEF(&SG(callback_func));

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();

} else {

SG(request_info).content_type_dup = NULL;

}

/* Cookies */

SG(request_info).cookie_data = sapi_module.read_cookies();

}

if (sapi_module.activate) {

sapi_module.activate();

}

if (sapi_module.input_filter_init) {

sapi_module.input_filter_init();

}

static void sapi_send_headers_free(void)

{

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_module(void)

{

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];

size_t read_bytes;

do {

read_bytes = sapi_read_post_block(dummy, SAPI_POST_BLOCK_SIZE);

} 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();

}

SAPI_API void sapi_deactivate_destroy(void)

{

if (SG(rfc1867_uploaded_files)) {

destroy_uploaded_files_hash();

}

if (SG(sapi_headers).mimetype) {

efree(SG(sapi_headers).mimetype);

SG(sapi_headers).mimetype = NULL;

}

sapi_send_headers_free();

SG(sapi_started) = 0;

SG(headers_sent) = 0;

SG(request_info).headers_read = 0;

SG(global_request_time) = 0;

}

SAPI_API void sapi_deactivate(void)

{

sapi_deactivate_module();

sapi_deactivate_destroy();

}

SAPI_API void sapi_initialize_empty_request(void)

{

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)

{

/* 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 removes one matched item once,

* we should remove them manually

static void sapi_remove_header(zend_llist *l, char *name, size_t 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(const char *header_line, size_t header_line_len, bool duplicate, bool replace)

{

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);

if (!duplicate)

efree((void *) header_line);

return r;

}

static void sapi_header_add_op(sapi_header_op_enum op, sapi_header_struct *sapi_header)

{

if (!sapi_module.header_handler ||

(SAPI_HEADER_ADD & sapi_module.header_handler(sapi_header, op, &SG(sapi_headers)))) {

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)

{

sapi_header_struct sapi_header;

char *colon_offset;

char *header_line;

size_t 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();

int output_start_lineno = php_output_get_start_lineno();

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)(intptr_t) arg);

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 = estrndup(p->line, p->line_len);

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));

}

zend_llist_clean(&SG(sapi_headers).headers);

return SUCCESS;

default:

return FAILURE;

}

/* 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));

}

sapi_remove_header(&SG(sapi_headers).headers, header_line, header_line_len);

efree(header_line);

return SUCCESS;

} else {

/* new line/NUL character safety check */

uint32_t 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));

/* 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--;

}

mimetype = estrdup(ptr);

newlen = sapi_apply_default_charset(&mimetype, len);

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 = (uint32_t)(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

* to 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_string *key = ZSTR_INIT_LITERAL("zlib.output_compression", 0);

zend_alter_ini_entry_chars(key,

"0", sizeof("0") - 1, PHP_INI_USER, PHP_INI_STAGE_RUNTIME);

zend_string_release_ex(key, 0);

} 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);

} 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);

} else {

sapi_update_response_code(302);

}

} else if (!strcasecmp(header_line, "WWW-Authenticate")) { /* HTTP Authentication */

sapi_update_response_code(401); /* authentication-required */

}

if (sapi_header.header==header_line) {

*colon_offset = ':';

}

if (http_response_code) {

sapi_update_response_code(http_response_code);

}

sapi_header_add_op(op, &sapi_header);

return SUCCESS;

}

SAPI_API int sapi_send_headers(void)

{

int retval;

int ret = FAILURE;

if (SG(headers_sent) || SG(request_info).no_headers) {

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) {

uint32_t len = 0;

char *default_mimetype = get_default_content_type(0, &len);

if (default_mimetype && len) {

sapi_header_struct default_header;

SG(sapi_headers).mimetype = default_mimetype;

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);

} else {

efree(default_mimetype);

}

SG(sapi_headers).send_default_content_type = 0;

}

if (Z_TYPE(SG(callback_func)) != IS_UNDEF) {

zval cb;

ZVAL_COPY_VALUE(&cb, &SG(callback_func));

ZVAL_UNDEF(&SG(callback_func));

sapi_run_header_callback(&cb);

zval_ptr_dtor(&cb);

}

SG(headers_sent) = 1;

if (sapi_module.send_headers) {

retval = sapi_module.send_headers(&SG(sapi_headers));

} 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 = (uint32_t)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));

}

zend_llist_apply_with_argument(&SG(sapi_headers).headers, (llist_apply_with_arg_func_t) sapi_module.send_header, SG(server_context));

if(SG(sapi_headers).send_default_content_type) {

sapi_header_struct default_header;

sapi_get_default_content_type_header(&default_header);

sapi_module.send_header(&default_header, SG(server_context));

sapi_free_header(&default_header);

}

sapi_module.send_header(NULL, SG(server_context));

ret = SUCCESS;

break;

case SAPI_HEADER_SEND_FAILED:

SG(headers_sent) = 0;

ret = FAILURE;

break;

}

sapi_send_headers_free();

return ret;

}

SAPI_API int sapi_register_post_entries(const sapi_post_entry *post_entries)

{

const sapi_post_entry *p=post_entries;

while (p->content_type) {

if (sapi_register_post_entry(p) == FAILURE) {

return FAILURE;

}

p++;

}

return SUCCESS;

}

SAPI_API int sapi_register_post_entry(const sapi_post_entry *post_entry)

{

int ret;

zend_string *key;

if (SG(sapi_started) && EG(current_execute_data)) {

return FAILURE;

}

key = zend_string_init(post_entry->content_type, post_entry->content_type_len, 1);

GC_MAKE_PERSISTENT_LOCAL(key);

ret = zend_hash_add_mem(&SG(known_post_content_types), key,

(void *) post_entry, sizeof(sapi_post_entry)) ? SUCCESS : FAILURE;

zend_string_release_ex(key, 1);

return ret;

}

SAPI_API void sapi_unregister_post_entry(const sapi_post_entry *post_entry)

{

if (SG(sapi_started) && EG(current_execute_data)) {

return;

}

zend_hash_str_del(&SG(known_post_content_types), post_entry->content_type,

post_entry->content_type_len);

}

SAPI_API int sapi_register_default_post_reader(void (*default_post_reader)(void))

{

if (SG(sapi_started) && EG(current_execute_data)) {

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))

{

if (SG(sapi_started) && EG(current_execute_data)) {

return FAILURE;

}

sapi_module.treat_data = treat_data;

return SUCCESS;

}

SAPI_API int sapi_register_input_filter(unsigned int (*input_filter)(int arg, const char *var, char **val, size_t val_len, size_t *new_val_len), unsigned int (*input_filter_init)(void))

{

if (SG(sapi_started) && EG(current_execute_data)) {

return FAILURE;

}

sapi_module.input_filter = input_filter;

sapi_module.input_filter_init = input_filter_init;

return SUCCESS;

}

SAPI_API int sapi_flush(void)

{

if (sapi_module.flush) {

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php-src/main/SAPI.c at in-place-array-modification-squashed · ndossche/php-src · GitHub

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