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Fix GHSA-ghsa-v8xr-gpvj-cx9g: http header folding

Browse source 
This adds HTTP header folding support for HTTP wrapper response
headers.

Reviewed-by: Tim Düsterhus <tim@tideways-gmbh.com>
This commit is contained in:
Jakub Zelenka 2024-12-31 18:57:02 +01:00
parent f209eb448e
commit d20b4c97a9
No known key found for this signature in database
GPG key ID: 1C0779DC5C0A9DE4
7 changed files with 484 additions and 134 deletions
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343
ext/standard/http_fopen_wrapper.c
View file

@ -115,6 +115,171 @@ static bool check_has_header(const char *headers, const char *header) {
return 0; return 0;
} }
typedef struct _php_stream_http_response_header_info {
php_stream_filter *transfer_encoding;
size_t file_size;
bool follow_location;
char location[HTTP_HEADER_BLOCK_SIZE];
} php_stream_http_response_header_info;
static void php_stream_http_response_header_info_init(
php_stream_http_response_header_info *header_info)
{
header_info->transfer_encoding = NULL;
header_info->file_size = 0;
header_info->follow_location = 1;
header_info->location[0] = '\0';
}
/* Trim white spaces from response header line and update its length */
static bool php_stream_http_response_header_trim(char *http_header_line,
size_t *http_header_line_length)
{
char *http_header_line_end = http_header_line + *http_header_line_length - 1;
while (http_header_line_end >= http_header_line &&
(*http_header_line_end == '\n' || *http_header_line_end == '\r')) {
http_header_line_end--;
}
/* The primary definition of an HTTP header in RFC 7230 states:
* > Each header field consists of a case-insensitive field name followed
* > by a colon (":"), optional leading whitespace, the field value, and
* > optional trailing whitespace. */
/* Strip trailing whitespace */
bool space_trim = (*http_header_line_end == ' ' || *http_header_line_end == '\t');
if (space_trim) {
do {
http_header_line_end--;
} while (http_header_line_end >= http_header_line &&
(*http_header_line_end == ' ' || *http_header_line_end == '\t'));
}
http_header_line_end++;
*http_header_line_end = '\0';
*http_header_line_length = http_header_line_end - http_header_line;
return space_trim;
}
/* Process folding headers of the current line and if there are none, parse last full response
* header line. It returns NULL if the last header is finished, otherwise it returns updated
* last header line. */
static zend_string *php_stream_http_response_headers_parse(php_stream *stream,
php_stream_context *context, int options, zend_string *last_header_line_str,
char *header_line, size_t *header_line_length, int response_code,
zval *response_header, php_stream_http_response_header_info *header_info)
{
char *last_header_line = ZSTR_VAL(last_header_line_str);
size_t last_header_line_length = ZSTR_LEN(last_header_line_str);
char *last_header_line_end = ZSTR_VAL(last_header_line_str) + ZSTR_LEN(last_header_line_str) - 1;
/* Process non empty header line. */
if (header_line && (*header_line != '\n' && *header_line != '\r')) {
/* Removing trailing white spaces. */
if (php_stream_http_response_header_trim(header_line, header_line_length) &&
*header_line_length == 0) {
/* Only spaces so treat as an empty folding header. */
return last_header_line_str;
}
/* Process folding headers if starting with a space or a tab. */
if (header_line && (*header_line == ' ' || *header_line == '\t')) {
char *http_folded_header_line = header_line;
size_t http_folded_header_line_length = *header_line_length;
/* Remove the leading white spaces. */
while (*http_folded_header_line == ' ' || *http_folded_header_line == '\t') {
http_folded_header_line++;
http_folded_header_line_length--;
}
/* It has to have some characters because it would get returned after the call
* php_stream_http_response_header_trim above. */
ZEND_ASSERT(http_folded_header_line_length > 0);
/* Concatenate last header line, space and current header line. */
zend_string *extended_header_str = zend_string_concat3(
last_header_line, last_header_line_length,
" ", 1,
http_folded_header_line, http_folded_header_line_length);
zend_string_efree(last_header_line_str);
last_header_line_str = extended_header_str;
/* Return new header line. */
return last_header_line_str;
}
}
/* Find header separator position. */
char *last_header_value = memchr(last_header_line, ':', last_header_line_length);
if (last_header_value) {
last_header_value++; /* Skip ':'. */
/* Strip leading whitespace. */
while (last_header_value < last_header_line_end
&& (*last_header_value == ' ' || *last_header_value == '\t')) {
last_header_value++;
}
} else {
/* There is no colon. Set the value to the end of the header line, which is effectively
* an empty string. */
last_header_value = last_header_line_end;
}
bool store_header = true;
zval *tmpzval = NULL;
if (!strncasecmp(last_header_line, "Location:", sizeof("Location:")-1)) {
/* Check if the location should be followed. */
if (context && (tmpzval = php_stream_context_get_option(context, "http", "follow_location")) != NULL) {
header_info->follow_location = zval_is_true(tmpzval);
} else if (!((response_code >= 300 && response_code < 304)
|| 307 == response_code || 308 == response_code)) {
/* The redirection should not be automatic if follow_location is not set and
* response_code not in (300, 301, 302, 303 and 307)
* see http://www.w3.org/Protocols/rfc2616/rfc2616-sec10.html#sec10.3.1
* RFC 7238 defines 308: http://tools.ietf.org/html/rfc7238 */
header_info->follow_location = 0;
}
strlcpy(header_info->location, last_header_value, sizeof(header_info->location));
} else if (!strncasecmp(last_header_line, "Content-Type:", sizeof("Content-Type:")-1)) {
php_stream_notify_info(context, PHP_STREAM_NOTIFY_MIME_TYPE_IS, last_header_value, 0);
} else if (!strncasecmp(last_header_line, "Content-Length:", sizeof("Content-Length:")-1)) {
header_info->file_size = atoi(last_header_value);
php_stream_notify_file_size(context, header_info->file_size, last_header_line, 0);
} else if (
!strncasecmp(last_header_line, "Transfer-Encoding:", sizeof("Transfer-Encoding:")-1)
&& !strncasecmp(last_header_value, "Chunked", sizeof("Chunked")-1)
) {
/* Create filter to decode response body. */
if (!(options & STREAM_ONLY_GET_HEADERS)) {
zend_long decode = 1;
if (context && (tmpzval = php_stream_context_get_option(context, "http", "auto_decode")) != NULL) {
decode = zend_is_true(tmpzval);
}
if (decode) {
if (header_info->transfer_encoding != NULL) {
/* Prevent a memory leak in case there are more transfer-encoding headers. */
php_stream_filter_free(header_info->transfer_encoding);
}
header_info->transfer_encoding = php_stream_filter_create(
"dechunk", NULL, php_stream_is_persistent(stream));
if (header_info->transfer_encoding != NULL) {
/* Do not store transfer-encoding header. */
store_header = false;
}
}
}
}
if (store_header) {
zval http_header;
ZVAL_NEW_STR(&http_header, last_header_line_str);
zend_hash_next_index_insert(Z_ARRVAL_P(response_header), &http_header);
} else {
zend_string_efree(last_header_line_str);
}
return NULL;
}
static php_stream *php_stream_url_wrap_http_ex(php_stream_wrapper *wrapper, static php_stream *php_stream_url_wrap_http_ex(php_stream_wrapper *wrapper,
const char *path, const char *mode, int options, zend_string **opened_path, const char *path, const char *mode, int options, zend_string **opened_path,
php_stream_context *context, int redirect_max, int flags, php_stream_context *context, int redirect_max, int flags,
@ -127,11 +292,12 @@ static php_stream *php_stream_url_wrap_http_ex(php_stream_wrapper *wrapper,
zend_string *tmp = NULL; zend_string *tmp = NULL;
char *ua_str = NULL; char *ua_str = NULL;
zval *ua_zval = NULL, *tmpzval = NULL, ssl_proxy_peer_name; zval *ua_zval = NULL, *tmpzval = NULL, ssl_proxy_peer_name;
char location[HTTP_HEADER_BLOCK_SIZE];
int reqok = 0; int reqok = 0;
char *http_header_line = NULL; char *http_header_line = NULL;
zend_string *last_header_line_str = NULL;
php_stream_http_response_header_info header_info;
char tmp_line[128]; char tmp_line[128];
size_t chunk_size = 0, file_size = 0; size_t chunk_size = 0;
int eol_detect = 0; int eol_detect = 0;
zend_string *transport_string; zend_string *transport_string;
zend_string *errstr = NULL; zend_string *errstr = NULL;
@ -142,8 +308,6 @@ static php_stream *php_stream_url_wrap_http_ex(php_stream_wrapper *wrapper,
int header_init = ((flags & HTTP_WRAPPER_HEADER_INIT) != 0); int header_init = ((flags & HTTP_WRAPPER_HEADER_INIT) != 0);
int redirected = ((flags & HTTP_WRAPPER_REDIRECTED) != 0); int redirected = ((flags & HTTP_WRAPPER_REDIRECTED) != 0);
int redirect_keep_method = ((flags & HTTP_WRAPPER_KEEP_METHOD) != 0); int redirect_keep_method = ((flags & HTTP_WRAPPER_KEEP_METHOD) != 0);
bool follow_location = 1;
php_stream_filter *transfer_encoding = NULL;
int response_code; int response_code;
smart_str req_buf = {0}; smart_str req_buf = {0};
bool custom_request_method; bool custom_request_method;
@ -653,8 +817,6 @@ finish:
/* send it */ /* send it */
php_stream_write(stream, ZSTR_VAL(req_buf.s), ZSTR_LEN(req_buf.s)); php_stream_write(stream, ZSTR_VAL(req_buf.s), ZSTR_LEN(req_buf.s));
location[0] = '\0';
if (Z_ISUNDEF_P(response_header)) { if (Z_ISUNDEF_P(response_header)) {
array_init(response_header); array_init(response_header);
} }
@ -736,130 +898,101 @@ finish:
} }
} }
/* read past HTTP headers */ php_stream_http_response_header_info_init(&header_info);
/* read past HTTP headers */
while (!php_stream_eof(stream)) { while (!php_stream_eof(stream)) {
size_t http_header_line_length; size_t http_header_line_length;
if (http_header_line != NULL) { if (http_header_line != NULL) {
efree(http_header_line); efree(http_header_line);
} }
if ((http_header_line = php_stream_get_line(stream, NULL, 0, &http_header_line_length)) && *http_header_line != '\n' && *http_header_line != '\r') { if ((http_header_line = php_stream_get_line(stream, NULL, 0, &http_header_line_length))) {
char *e = http_header_line + http_header_line_length - 1; bool last_line;
char *http_header_value; if (*http_header_line == '\r') {
if (http_header_line[1] != '\n') {
while (e >= http_header_line && (*e == '\n' || *e == '\r')) { php_stream_close(stream);
e--; stream = NULL;
} php_stream_wrapper_log_error(wrapper, options,
"HTTP invalid header name (cannot start with CR character)!");
/* The primary definition of an HTTP header in RFC 7230 states: goto out;
* > Each header field consists of a case-insensitive field name followed
* > by a colon (":"), optional leading whitespace, the field value, and
* > optional trailing whitespace. */
/* Strip trailing whitespace */
while (e >= http_header_line && (*e == ' ' || *e == '\t')) {
e--;
}
/* Terminate header line */
e++;
*e = '\0';
http_header_line_length = e - http_header_line;
http_header_value = memchr(http_header_line, ':', http_header_line_length);
if (http_header_value) {
http_header_value++; /* Skip ':' */
/* Strip leading whitespace */
while (http_header_value < e
&& (*http_header_value == ' ' || *http_header_value == '\t')) {
http_header_value++;
} }
last_line = true;
} else if (*http_header_line == '\n') {
last_line = true;
} else { } else {
/* There is no colon. Set the value to the end of the header line, which is last_line = false;
* effectively an empty string. */
http_header_value = e;
} }
if (!strncasecmp(http_header_line, "Location:", sizeof("Location:")-1)) { if (last_header_line_str != NULL) {
if (context && (tmpzval = php_stream_context_get_option(context, "http", "follow_location")) != NULL) { /* Parse last header line. */
follow_location = zval_is_true(tmpzval); last_header_line_str = php_stream_http_response_headers_parse(stream, context,
} else if (!((response_code >= 300 && response_code < 304) options, last_header_line_str, http_header_line, &http_header_line_length,
|| 307 == response_code || 308 == response_code)) { response_code, response_header, &header_info);
/* we shouldn't redirect automatically if (last_header_line_str != NULL) {
if follow_location isn't set and response_code not in (300, 301, 302, 303 and 307) /* Folding header present so continue. */
see http://www.w3.org/Protocols/rfc2616/rfc2616-sec10.html#sec10.3.1 continue;
RFC 7238 defines 308: http://tools.ietf.org/html/rfc7238 */
follow_location = 0;
} }
strlcpy(location, http_header_value, sizeof(location)); } else if (!last_line) {
} else if (!strncasecmp(http_header_line, "Content-Type:", sizeof("Content-Type:")-1)) { /* The first line cannot start with spaces. */
php_stream_notify_info(context, PHP_STREAM_NOTIFY_MIME_TYPE_IS, http_header_value, 0); if (*http_header_line == ' ' || *http_header_line == '\t') {
} else if (!strncasecmp(http_header_line, "Content-Length:", sizeof("Content-Length:")-1)) { php_stream_close(stream);
file_size = atoi(http_header_value); stream = NULL;
php_stream_notify_file_size(context, file_size, http_header_line, 0); php_stream_wrapper_log_error(wrapper, options,
} else if ( "HTTP invalid response format (folding header at the start)!");
!strncasecmp(http_header_line, "Transfer-Encoding:", sizeof("Transfer-Encoding:")-1) goto out;
&& !strncasecmp(http_header_value, "Chunked", sizeof("Chunked")-1)
) {
/* create filter to decode response body */
if (!(options & STREAM_ONLY_GET_HEADERS)) {
zend_long decode = 1;
if (context && (tmpzval = php_stream_context_get_option(context, "http", "auto_decode")) != NULL) {
decode = zend_is_true(tmpzval);
}
if (decode) {
transfer_encoding = php_stream_filter_create("dechunk", NULL, php_stream_is_persistent(stream));
if (transfer_encoding) {
/* don't store transfer-encodeing header */
continue;
}
}
} }
/* Trim the first line if it is not the last line. */
php_stream_http_response_header_trim(http_header_line, &http_header_line_length);
} }
if (last_line) {
{ /* For the last line the last header line must be NULL. */
zval http_header; ZEND_ASSERT(last_header_line_str == NULL);
ZVAL_STRINGL(&http_header, http_header_line, http_header_line_length); break;
zend_hash_next_index_insert(Z_ARRVAL_P(response_header), &http_header);
} }
/* Save current line as the last line so it gets parsed in the next round. */
last_header_line_str = zend_string_init(http_header_line, http_header_line_length, 0);
} else { } else {
break; break;
} }
} }
if (!reqok || (location[0] != '\0' && follow_location)) { /* If the stream was closed early, we still want to process the last line to keep BC. */
if (!follow_location || (((options & STREAM_ONLY_GET_HEADERS) || ignore_errors) && redirect_max <= 1)) { if (last_header_line_str != NULL) {
php_stream_http_response_headers_parse(stream, context, options, last_header_line_str,
NULL, NULL, response_code, response_header, &header_info);
}
if (!reqok || (header_info.location[0] != '\0' && header_info.follow_location)) {
if (!header_info.follow_location || (((options & STREAM_ONLY_GET_HEADERS) || ignore_errors) && redirect_max <= 1)) {
goto out; goto out;
} }
if (location[0] != '\0') if (header_info.location[0] != '\0')
php_stream_notify_info(context, PHP_STREAM_NOTIFY_REDIRECTED, location, 0); php_stream_notify_info(context, PHP_STREAM_NOTIFY_REDIRECTED, header_info.location, 0);
php_stream_close(stream); php_stream_close(stream);
stream = NULL; stream = NULL;
if (transfer_encoding) { if (header_info.transfer_encoding) {
php_stream_filter_free(transfer_encoding); php_stream_filter_free(header_info.transfer_encoding);
transfer_encoding = NULL; header_info.transfer_encoding = NULL;
} }
if (location[0] != '\0') { if (header_info.location[0] != '\0') {
char new_path[HTTP_HEADER_BLOCK_SIZE]; char new_path[HTTP_HEADER_BLOCK_SIZE];
char loc_path[HTTP_HEADER_BLOCK_SIZE]; char loc_path[HTTP_HEADER_BLOCK_SIZE];
*new_path='\0'; *new_path='\0';
if (strlen(location)<8 || (strncasecmp(location, "http://", sizeof("http://")-1) && if (strlen(header_info.location) < 8 ||
strncasecmp(location, "https://", sizeof("https://")-1) && (strncasecmp(header_info.location, "http://", sizeof("http://")-1) &&
strncasecmp(location, "ftp://", sizeof("ftp://")-1) && strncasecmp(header_info.location, "https://", sizeof("https://")-1) &&
strncasecmp(location, "ftps://", sizeof("ftps://")-1))) strncasecmp(header_info.location, "ftp://", sizeof("ftp://")-1) &&
strncasecmp(header_info.location, "ftps://", sizeof("ftps://")-1)))
{ {
if (*location != '/') { if (*header_info.location != '/') {
if (*(location+1) != '\0' && resource->path) { if (*(header_info.location+1) != '\0' && resource->path) {
char *s = strrchr(ZSTR_VAL(resource->path), '/'); char *s = strrchr(ZSTR_VAL(resource->path), '/');
if (!s) { if (!s) {
s = ZSTR_VAL(resource->path); s = ZSTR_VAL(resource->path);
@ -875,15 +1008,17 @@ finish:
if (resource->path && if (resource->path &&
ZSTR_VAL(resource->path)[0] == '/' && ZSTR_VAL(resource->path)[0] == '/' &&
ZSTR_VAL(resource->path)[1] == '\0') { ZSTR_VAL(resource->path)[1] == '\0') {
snprintf(loc_path, sizeof(loc_path) - 1, "%s%s", ZSTR_VAL(resource->path), location); snprintf(loc_path, sizeof(loc_path) - 1, "%s%s",
ZSTR_VAL(resource->path), header_info.location);
} else { } else {
snprintf(loc_path, sizeof(loc_path) - 1, "%s/%s", ZSTR_VAL(resource->path), location); snprintf(loc_path, sizeof(loc_path) - 1, "%s/%s",
ZSTR_VAL(resource->path), header_info.location);
} }
} else { } else {
snprintf(loc_path, sizeof(loc_path) - 1, "/%s", location); snprintf(loc_path, sizeof(loc_path) - 1, "/%s", header_info.location);
} }
} else { } else {
strlcpy(loc_path, location, sizeof(loc_path)); strlcpy(loc_path, header_info.location, sizeof(loc_path));
} }
if ((use_ssl && resource->port != 443) || (!use_ssl && resource->port != 80)) { if ((use_ssl && resource->port != 443) || (!use_ssl && resource->port != 80)) {
snprintf(new_path, sizeof(new_path) - 1, "%s://%s:%d%s", ZSTR_VAL(resource->scheme), ZSTR_VAL(resource->host), resource->port, loc_path); snprintf(new_path, sizeof(new_path) - 1, "%s://%s:%d%s", ZSTR_VAL(resource->scheme), ZSTR_VAL(resource->host), resource->port, loc_path);
@ -891,7 +1026,7 @@ finish:
snprintf(new_path, sizeof(new_path) - 1, "%s://%s%s", ZSTR_VAL(resource->scheme), ZSTR_VAL(resource->host), loc_path); snprintf(new_path, sizeof(new_path) - 1, "%s://%s%s", ZSTR_VAL(resource->scheme), ZSTR_VAL(resource->host), loc_path);
} }
} else { } else {
strlcpy(new_path, location, sizeof(new_path)); strlcpy(new_path, header_info.location, sizeof(new_path));
} }
php_url_free(resource); php_url_free(resource);
@ -951,7 +1086,7 @@ out:
if (header_init) { if (header_init) {
ZVAL_COPY(&stream->wrapperdata, response_header); ZVAL_COPY(&stream->wrapperdata, response_header);
} }
php_stream_notify_progress_init(context, 0, file_size); php_stream_notify_progress_init(context, 0, header_info.file_size);
/* Restore original chunk size now that we're done with headers */ /* Restore original chunk size now that we're done with headers */
if (options & STREAM_WILL_CAST) if (options & STREAM_WILL_CAST)
@ -967,8 +1102,8 @@ out:
/* restore mode */ /* restore mode */
strlcpy(stream->mode, mode, sizeof(stream->mode)); strlcpy(stream->mode, mode, sizeof(stream->mode));
if (transfer_encoding) { if (header_info.transfer_encoding) {
php_stream_filter_append(&stream->readfilters, transfer_encoding); php_stream_filter_append(&stream->readfilters, header_info.transfer_encoding);
} }
/* It's possible that the server already sent in more data than just the headers. /* It's possible that the server already sent in more data than just the headers.

49
ext/standard/tests/http/ghsa-v8xr-gpvj-cx9g-001.phpt Normal file
View file

@ -0,0 +1,49 @@
--TEST--
GHSA-v8xr-gpvj-cx9g: Header parser of http stream wrapper does not handle folded headers (single)
--FILE--
<?php
$serverCode = <<<'CODE'
$ctxt = stream_context_create([
"socket" => [
"tcp_nodelay" => true
]
]);
$server = stream_socket_server(
"tcp://127.0.0.1:0", $errno, $errstr, STREAM_SERVER_BIND | STREAM_SERVER_LISTEN, $ctxt);
phpt_notify_server_start($server);
$conn = stream_socket_accept($server);
phpt_notify(message:"server-accepted");
fwrite($conn, "HTTP/1.0 200 Ok\r\nContent-Type: text/html;\r\n charset=utf-8\r\n\r\nbody\r\n");
CODE;
$clientCode = <<<'CODE'
function stream_notification_callback($notification_code, $severity, $message, $message_code, $bytes_transferred, $bytes_max) {
switch($notification_code) {
case STREAM_NOTIFY_MIME_TYPE_IS:
echo "Found the mime-type: ", $message, PHP_EOL;
break;
}
}
$ctx = stream_context_create();
stream_context_set_params($ctx, array("notification" => "stream_notification_callback"));
var_dump(trim(file_get_contents("http://{{ ADDR }}", false, $ctx)));
var_dump($http_response_header);
CODE;
include sprintf("%s/../../../openssl/tests/ServerClientTestCase.inc", __DIR__);
ServerClientTestCase::getInstance()->run($clientCode, $serverCode);
?>
--EXPECTF--
Found the mime-type: text/html; charset=utf-8
string(4) "body"
array(2) {
[0]=>
string(15) "HTTP/1.0 200 Ok"
[1]=>
string(38) "Content-Type: text/html; charset=utf-8"
}

51
ext/standard/tests/http/ghsa-v8xr-gpvj-cx9g-002.phpt Normal file
View file

@ -0,0 +1,51 @@
--TEST--
GHSA-v8xr-gpvj-cx9g: Header parser of http stream wrapper does not handle folded headers (multiple)
--FILE--
<?php
$serverCode = <<<'CODE'
$ctxt = stream_context_create([
"socket" => [
"tcp_nodelay" => true
]
]);
$server = stream_socket_server(
"tcp://127.0.0.1:0", $errno, $errstr, STREAM_SERVER_BIND | STREAM_SERVER_LISTEN, $ctxt);
phpt_notify_server_start($server);
$conn = stream_socket_accept($server);
phpt_notify(message:"server-accepted");
fwrite($conn, "HTTP/1.0 200 Ok\r\nContent-Type: text/html;\r\nCustom-Header: somevalue;\r\n param1=value1; \r\n param2=value2\r\n\r\nbody\r\n");
CODE;
$clientCode = <<<'CODE'
function stream_notification_callback($notification_code, $severity, $message, $message_code, $bytes_transferred, $bytes_max) {
switch($notification_code) {
case STREAM_NOTIFY_MIME_TYPE_IS:
echo "Found the mime-type: ", $message, PHP_EOL;
break;
}
}
$ctx = stream_context_create();
stream_context_set_params($ctx, array("notification" => "stream_notification_callback"));
var_dump(trim(file_get_contents("http://{{ ADDR }}", false, $ctx)));
var_dump($http_response_header);
CODE;
include sprintf("%s/../../../openssl/tests/ServerClientTestCase.inc", __DIR__);
ServerClientTestCase::getInstance()->run($clientCode, $serverCode);
?>
--EXPECTF--
Found the mime-type: text/html;
string(4) "body"
array(3) {
[0]=>
string(15) "HTTP/1.0 200 Ok"
[1]=>
string(24) "Content-Type: text/html;"
[2]=>
string(54) "Custom-Header: somevalue; param1=value1; param2=value2"
}

49
ext/standard/tests/http/ghsa-v8xr-gpvj-cx9g-003.phpt Normal file
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--TEST--
GHSA-v8xr-gpvj-cx9g: Header parser of http stream wrapper does not handle folded headers (empty)
--FILE--
<?php
$serverCode = <<<'CODE'
$ctxt = stream_context_create([
"socket" => [
"tcp_nodelay" => true
]
]);
$server = stream_socket_server(
"tcp://127.0.0.1:0", $errno, $errstr, STREAM_SERVER_BIND | STREAM_SERVER_LISTEN, $ctxt);
phpt_notify_server_start($server);
$conn = stream_socket_accept($server);
phpt_notify(message:"server-accepted");
fwrite($conn, "HTTP/1.0 200 Ok\r\nContent-Type: text/html;\r\n \r\n charset=utf-8\r\n\r\nbody\r\n");
CODE;
$clientCode = <<<'CODE'
function stream_notification_callback($notification_code, $severity, $message, $message_code, $bytes_transferred, $bytes_max) {
switch($notification_code) {
case STREAM_NOTIFY_MIME_TYPE_IS:
echo "Found the mime-type: ", $message, PHP_EOL;
break;
}
}
$ctx = stream_context_create();
stream_context_set_params($ctx, array("notification" => "stream_notification_callback"));
var_dump(trim(file_get_contents("http://{{ ADDR }}", false, $ctx)));
var_dump($http_response_header);
CODE;
include sprintf("%s/../../../openssl/tests/ServerClientTestCase.inc", __DIR__);
ServerClientTestCase::getInstance()->run($clientCode, $serverCode);
?>
--EXPECTF--
Found the mime-type: text/html; charset=utf-8
string(4) "body"
array(2) {
[0]=>
string(15) "HTTP/1.0 200 Ok"
[1]=>
string(38) "Content-Type: text/html; charset=utf-8"
}

48
ext/standard/tests/http/ghsa-v8xr-gpvj-cx9g-004.phpt Normal file
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--TEST--
GHSA-v8xr-gpvj-cx9g: Header parser of http stream wrapper does not handle folded headers (first line)
--FILE--
<?php
$serverCode = <<<'CODE'
$ctxt = stream_context_create([
"socket" => [
"tcp_nodelay" => true
]
]);
$server = stream_socket_server(
"tcp://127.0.0.1:0", $errno, $errstr, STREAM_SERVER_BIND | STREAM_SERVER_LISTEN, $ctxt);
phpt_notify_server_start($server);
$conn = stream_socket_accept($server);
phpt_notify(message:"server-accepted");
fwrite($conn, "HTTP/1.0 200 Ok\r\n Content-Type: text/html;\r\n \r\n charset=utf-8\r\n\r\nbody\r\n");
CODE;
$clientCode = <<<'CODE'
function stream_notification_callback($notification_code, $severity, $message, $message_code, $bytes_transferred, $bytes_max) {
switch($notification_code) {
case STREAM_NOTIFY_MIME_TYPE_IS:
echo "Found the mime-type: ", $message, PHP_EOL;
break;
}
}
$ctx = stream_context_create();
stream_context_set_params($ctx, array("notification" => "stream_notification_callback"));
var_dump(file_get_contents("http://{{ ADDR }}", false, $ctx));
var_dump($http_response_header);
CODE;
include sprintf("%s/../../../openssl/tests/ServerClientTestCase.inc", __DIR__);
ServerClientTestCase::getInstance()->run($clientCode, $serverCode);
?>
--EXPECTF--
Warning: file_get_contents(http://127.0.0.1:%d): Failed to open stream: HTTP invalid response format (folding header at the start)! in %s
bool(false)
array(1) {
[0]=>
string(15) "HTTP/1.0 200 Ok"
}

48
ext/standard/tests/http/ghsa-v8xr-gpvj-cx9g-005.phpt Normal file
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--TEST--
GHSA-v8xr-gpvj-cx9g: Header parser of http stream wrapper does not handle folded headers (CR before header name)
--FILE--
<?php
$serverCode = <<<'CODE'
$ctxt = stream_context_create([
"socket" => [
"tcp_nodelay" => true
]
]);
$server = stream_socket_server(
"tcp://127.0.0.1:0", $errno, $errstr, STREAM_SERVER_BIND | STREAM_SERVER_LISTEN, $ctxt);
phpt_notify_server_start($server);
$conn = stream_socket_accept($server);
phpt_notify(message:"server-accepted");
fwrite($conn, "HTTP/1.0 200 Ok\r\n\rIgnored: ignored\r\n\r\nbody\r\n");
CODE;
$clientCode = <<<'CODE'
function stream_notification_callback($notification_code, $severity, $message, $message_code, $bytes_transferred, $bytes_max) {
switch($notification_code) {
case STREAM_NOTIFY_MIME_TYPE_IS:
echo "Found the mime-type: ", $message, PHP_EOL;
break;
}
}
$ctx = stream_context_create();
stream_context_set_params($ctx, array("notification" => "stream_notification_callback"));
var_dump(file_get_contents("http://{{ ADDR }}", false, $ctx));
var_dump($http_response_header);
CODE;
include sprintf("%s/../../../openssl/tests/ServerClientTestCase.inc", __DIR__);
ServerClientTestCase::getInstance()->run($clientCode, $serverCode);
?>
--EXPECTF--
Warning: file_get_contents(http://127.0.0.1:%d): Failed to open stream: HTTP invalid header name (cannot start with CR character)! in %s
bool(false)
array(1) {
[0]=>
string(15) "HTTP/1.0 200 Ok"
}

30
ext/standard/tests/http/http_response_header_05.phpt
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@ -1,30 +0,0 @@
--TEST--
$http_reponse_header (whitespace-only "header")
--SKIPIF--
<?php require 'server.inc'; http_server_skipif(); ?>
--INI--
allow_url_fopen=1
--FILE--
<?php
require 'server.inc';
$responses = array(
"data://text/plain,HTTP/1.0 200 Ok\r\n \r\n\r\nBody",
);
['pid' => $pid, 'uri' => $uri] = http_server($responses, $output);
$f = file_get_contents($uri);
var_dump($f);
var_dump($http_response_header);
http_server_kill($pid);
--EXPECT--
string(4) "Body"
array(2) {
[0]=>
string(15) "HTTP/1.0 200 Ok"
[1]=>
string(0) ""
}