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php-src/ext/standard/http_fopen_wrapper.c

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/*
+----------------------------------------------------------------------+
| PHP Version 6 |
+----------------------------------------------------------------------+
| Copyright (c) 1997-2009 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@php.net> |
| Jim Winstead <jimw@php.net> |
| Hartmut Holzgraefe <hholzgra@php.net> |
| Wez Furlong <wez@thebrainroom.com> |
| Sara Golemon <pollita@php.net> |
+----------------------------------------------------------------------+
*/
/* $Id$ */
#include "php.h"
#include "php_globals.h"
#include "php_streams.h"
#include "php_network.h"
#include "php_ini.h"
#include "ext/standard/basic_functions.h"
#include "ext/standard/php_smart_str.h"
#include <stdio.h>
#include <stdlib.h>
#include <errno.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#ifdef PHP_WIN32
#define O_RDONLY _O_RDONLY
#include "win32/param.h"
#else
#include <sys/param.h>
#endif
#include "php_standard.h"
#include <sys/types.h>
#if HAVE_SYS_SOCKET_H
#include <sys/socket.h>
#endif
#ifdef PHP_WIN32
#include <winsock2.h>
#elif defined(NETWARE) && defined(USE_WINSOCK)
#include <novsock2.h>
#else
#include <netinet/in.h>
#include <netdb.h>
#if HAVE_ARPA_INET_H
#include <arpa/inet.h>
#endif
#endif
#if defined(PHP_WIN32) || defined(__riscos__) || defined(NETWARE)
#undef AF_UNIX
#endif
#if defined(AF_UNIX)
#include <sys/un.h>
#endif
#include "php_fopen_wrappers.h"
#define HTTP_HEADER_BLOCK_SIZE 1024
#define PHP_URL_REDIRECT_MAX 20
#define HTTP_HEADER_USER_AGENT 1
#define HTTP_HEADER_HOST 2
#define HTTP_HEADER_AUTH 4
#define HTTP_HEADER_FROM 8
#define HTTP_HEADER_CONTENT_LENGTH 16
#define HTTP_HEADER_TYPE 32
#define HTTP_WRAPPER_HEADER_INIT 1
#define HTTP_WRAPPER_REDIRECTED 2
static inline char *php_http_detect_charset(char *http_header_line) /* {{{ */
{
char *s;
/* Note: This is a fairly remedial parser which could be easily confused by invalid data
The worst case scenario from such confusion should only result in the unicode filter not
being applied. While unfortunate, it's more an issue of the server sending a bad header */
for (s = strchr(http_header_line, ';'); s; s = strchr(s + 1, ';')) {
char *p = s;
while (*(++p) == ' ');
if (strncmp(p, "charset", sizeof("charset") - 1) != 0) {
continue;
}
p += sizeof("charset") - 1;
while (*p == ' ') p++;
if (*p != '=') {
continue;
}
while (*(++p) == ' ');
if (*p == '"') {
s = p + 1;
if (!(p = strchr(s, '"'))) {
/* Bad things, unmatched quote */
return NULL;
}
return estrndup(s, p - s);
break;
}
/* Unquoted value */
s = p;
while (*p && *p != ' ' && *p != ';') p++;
return estrndup(s, p - s);
}
return NULL;
}
/* }}} */
php_stream *php_stream_url_wrap_http_ex(php_stream_wrapper *wrapper, char *path, char *mode, int options, char **opened_path, php_stream_context *context, int redirect_max, int flags STREAMS_DC TSRMLS_DC) /* {{{ */
{
php_stream *stream = NULL;
php_url *resource = NULL;
int use_ssl;
int use_proxy = 0;
char *scratch = NULL;
char *tmp = NULL;
char *ua_str = NULL;
zval **ua_zval = NULL, **tmpzval = NULL;
int scratch_len = 0;
int body = 0;
char location[HTTP_HEADER_BLOCK_SIZE];
zval *response_header = NULL;
int reqok = 0;
char *http_header_line = NULL;
char tmp_line[128];
size_t chunk_size = 0, file_size = 0;
int eol_detect = 0;
char *transport_string, *errstr = NULL;
int transport_len, have_header = 0, request_fulluri = 0;
char *protocol_version = NULL;
int protocol_version_len = 3; /* Default: "1.0" */
char *charset = NULL;
struct timeval timeout;
char *user_headers = NULL;
int header_init = ((flags & HTTP_WRAPPER_HEADER_INIT) != 0);
int redirected = ((flags & HTTP_WRAPPER_REDIRECTED) != 0);
php_stream_filter *transfer_encoding = NULL;
tmp_line[0] = '\0';
if (redirect_max < 1) {
php_stream_wrapper_log_error(wrapper, options TSRMLS_CC, "Redirection limit reached, aborting");
return NULL;
}
resource = php_url_parse(path);
if (resource == NULL) {
return NULL;
}
if (strncasecmp(resource->scheme, "http", sizeof("http")) && strncasecmp(resource->scheme, "https", sizeof("https"))) {
if (!context ||
php_stream_context_get_option(context, wrapper->wops->label, "proxy", &tmpzval) == FAILURE ||
Z_TYPE_PP(tmpzval) != IS_STRING ||
Z_STRLEN_PP(tmpzval) <= 0) {
php_url_free(resource);
return php_stream_open_wrapper_ex(path, mode, REPORT_ERRORS, NULL, context);
}
/* Called from a non-http wrapper with http proxying requested (i.e. ftp) */
request_fulluri = 1;
use_ssl = 0;
use_proxy = 1;
transport_len = Z_STRLEN_PP(tmpzval);
transport_string = estrndup(Z_STRVAL_PP(tmpzval), Z_STRLEN_PP(tmpzval));
} else {
/* Normal http request (possibly with proxy) */
if (strpbrk(mode, "awx+")) {
php_stream_wrapper_log_error(wrapper, options TSRMLS_CC, "HTTP wrapper does not support writeable connections");
php_url_free(resource);
return NULL;
}
use_ssl = resource->scheme && (strlen(resource->scheme) > 4) && resource->scheme[4] == 's';
/* choose default ports */
if (use_ssl && resource->port == 0)
resource->port = 443;
else if (resource->port == 0)
resource->port = 80;
if (context &&
php_stream_context_get_option(context, wrapper->wops->label, "proxy", &tmpzval) == SUCCESS &&
Z_TYPE_PP(tmpzval) == IS_STRING &&
Z_STRLEN_PP(tmpzval) > 0) {
use_proxy = 1;
transport_len = Z_STRLEN_PP(tmpzval);
transport_string = estrndup(Z_STRVAL_PP(tmpzval), Z_STRLEN_PP(tmpzval));
} else {
transport_len = spprintf(&transport_string, 0, "%s://%s:%d", use_ssl ? "ssl" : "tcp", resource->host, resource->port);
}
}
if (context && php_stream_context_get_option(context, wrapper->wops->label, "timeout", &tmpzval) == SUCCESS) {
SEPARATE_ZVAL(tmpzval);
convert_to_double_ex(tmpzval);
timeout.tv_sec = (time_t) Z_DVAL_PP(tmpzval);
timeout.tv_usec = (size_t) ((Z_DVAL_PP(tmpzval) - timeout.tv_sec) * 1000000);
} else {
timeout.tv_sec = FG(default_socket_timeout);
timeout.tv_usec = 0;
}
stream = php_stream_xport_create(transport_string, transport_len, options,
STREAM_XPORT_CLIENT | STREAM_XPORT_CONNECT,
NULL, &timeout, context, &errstr, NULL);
if (stream) {
php_stream_set_option(stream, PHP_STREAM_OPTION_READ_TIMEOUT, 0, &timeout);
}
if (errstr) {
php_stream_wrapper_log_error(wrapper, options TSRMLS_CC, "%s", errstr);
efree(errstr);
errstr = NULL;
}
efree(transport_string);
if (stream && use_proxy && use_ssl) {
smart_str header = {0};
smart_str_appendl(&header, "CONNECT ", sizeof("CONNECT ")-1);
smart_str_appends(&header, resource->host);
smart_str_appendc(&header, ':');
smart_str_append_unsigned(&header, resource->port);
smart_str_appendl(&header, " HTTP/1.0\r\n\r\n", sizeof(" HTTP/1.0\r\n\r\n")-1);
if (php_stream_write(stream, header.c, header.len) != header.len) {
php_stream_wrapper_log_error(wrapper, options TSRMLS_CC, "Cannot connect to HTTPS server through proxy");
php_stream_close(stream);
stream = NULL;
}
smart_str_free(&header);
if (stream) {
char header_line[HTTP_HEADER_BLOCK_SIZE];
/* get response header */
while (php_stream_gets(stream, ZSTR(header_line), HTTP_HEADER_BLOCK_SIZE-1) != NULL) {
if (header_line[0] == '\n' ||
header_line[0] == '\r' ||
header_line[0] == '\0') {
break;
}
}
}
/* enable SSL transport layer */
if (stream) {
if (php_stream_xport_crypto_setup(stream, STREAM_CRYPTO_METHOD_SSLv23_CLIENT, NULL TSRMLS_CC) < 0 ||
php_stream_xport_crypto_enable(stream, 1 TSRMLS_CC) < 0) {
php_stream_wrapper_log_error(wrapper, options TSRMLS_CC, "Cannot connect to HTTPS server through proxy");
php_stream_close(stream);
stream = NULL;
}
}
}
if (stream == NULL)
goto out;
/* avoid buffering issues while reading header */
if (options & STREAM_WILL_CAST)
chunk_size = php_stream_set_chunk_size(stream, 1);
/* avoid problems with auto-detecting when reading the headers -> the headers
* are always in canonical \r\n format */
eol_detect = stream->flags & (PHP_STREAM_FLAG_DETECT_EOL | PHP_STREAM_FLAG_EOL_MAC);
stream->flags &= ~(PHP_STREAM_FLAG_DETECT_EOL | PHP_STREAM_FLAG_EOL_MAC);
php_stream_context_set(stream, context);
php_stream_notify_info(context, PHP_STREAM_NOTIFY_CONNECT, NULL, 0);
if (header_init && context && php_stream_context_get_option(context, "http", "max_redirects", &tmpzval) == SUCCESS) {
SEPARATE_ZVAL(tmpzval);
convert_to_long_ex(tmpzval);
redirect_max = Z_LVAL_PP(tmpzval);
}
if (context && php_stream_context_get_option(context, "http", "method", &tmpzval) == SUCCESS) {
if (Z_TYPE_PP(tmpzval) == IS_STRING && Z_STRLEN_PP(tmpzval) > 0) {
/* As per the RFC, automatically redirected requests MUST NOT use other methods than
* GET and HEAD unless it can be confirmed by the user */
if (!redirected
|| (Z_STRLEN_PP(tmpzval) == 3 && memcmp("GET", Z_STRVAL_PP(tmpzval), 3) == 0)
|| (Z_STRLEN_PP(tmpzval) == 4 && memcmp("HEAD",Z_STRVAL_PP(tmpzval), 4) == 0)
) {
scratch_len = strlen(path) + 29 + Z_STRLEN_PP(tmpzval);
scratch = emalloc(scratch_len);
strlcpy(scratch, Z_STRVAL_PP(tmpzval), Z_STRLEN_PP(tmpzval) + 1);
strcat(scratch, " ");
}
}
}
if (context && php_stream_context_get_option(context, "http", "protocol_version", &tmpzval) == SUCCESS) {
SEPARATE_ZVAL(tmpzval);
convert_to_double_ex(tmpzval);
protocol_version_len = spprintf(&protocol_version, 0, "%.1F", Z_DVAL_PP(tmpzval));
}
if (!scratch) {
scratch_len = strlen(path) + 29 + protocol_version_len;
scratch = emalloc(scratch_len);
strcpy(scratch, "GET ");
}
/* Should we send the entire path in the request line, default to no. */
if (!request_fulluri &&
context &&
php_stream_context_get_option(context, "http", "request_fulluri", &tmpzval) == SUCCESS) {
zval tmp = **tmpzval;
zval_copy_ctor(&tmp);
convert_to_boolean(&tmp);
request_fulluri = Z_BVAL(tmp) ? 1 : 0;
zval_dtor(&tmp);
}
if (request_fulluri) {
/* Ask for everything */
strcat(scratch, path);
} else {
/* Send the traditional /path/to/file?query_string */
/* file */
if (resource->path && *resource->path) {
strlcat(scratch, resource->path, scratch_len);
} else {
strlcat(scratch, "/", scratch_len);
}
/* query string */
if (resource->query) {
strlcat(scratch, "?", scratch_len);
strlcat(scratch, resource->query, scratch_len);
}
}
/* protocol version we are speaking */
if (protocol_version) {
strlcat(scratch, " HTTP/", scratch_len);
strlcat(scratch, protocol_version, scratch_len);
strlcat(scratch, "\r\n", scratch_len);
efree(protocol_version);
protocol_version = NULL;
} else {
strlcat(scratch, " HTTP/1.0\r\n", scratch_len);
}
/* send it */
php_stream_write(stream, scratch, strlen(scratch));
if (context &&
php_stream_context_get_option(context, "http", "header", &tmpzval) == SUCCESS &&
Z_TYPE_PP(tmpzval) == IS_STRING && Z_STRLEN_PP(tmpzval)) {
/* Remove newlines and spaces from start and end,
php_trim will estrndup() */
tmp = php_trim(Z_STRVAL_PP(tmpzval), Z_STRLEN_PP(tmpzval), NULL, 0, NULL, 3 TSRMLS_CC);
if (strlen(tmp) > 0) {
if (!header_init) { /* Remove post headers for redirects */
int l = strlen(tmp);
char *s, *s2, *tmp_c = estrdup(tmp);
php_strtolower(tmp_c, l);
if ((s = strstr(tmp_c, "content-length:"))) {
if ((s2 = memchr(s, '\n', tmp_c + l - s))) {
int b = tmp_c + l - 1 - s2;
memmove(tmp, tmp + (s2 + 1 - tmp_c), b);
memmove(tmp_c, s2 + 1, b);
} else {
tmp[s - tmp_c] = *s = '\0';
}
l = strlen(tmp_c);
}
if ((s = strstr(tmp_c, "content-type:"))) {
if ((s2 = memchr(s, '\n', tmp_c + l - s))) {
memmove(tmp, tmp + (s2 + 1 - tmp_c), tmp_c + l - 1 - s2);
} else {
tmp[s - tmp_c] = '\0';
}
}
efree(tmp_c);
tmp_c = php_trim(tmp, strlen(tmp), NULL, 0, NULL, 3 TSRMLS_CC);
efree(tmp);
tmp = tmp_c;
}
user_headers = estrdup(tmp);
/* Make lowercase for easy comparison against 'standard' headers */
php_strtolower(tmp, strlen(tmp));
if (strstr(tmp, "user-agent:")) {
have_header |= HTTP_HEADER_USER_AGENT;
}
if (strstr(tmp, "host:")) {
have_header |= HTTP_HEADER_HOST;
}
if (strstr(tmp, "from:")) {
have_header |= HTTP_HEADER_FROM;
}
if (strstr(tmp, "authorization:")) {
have_header |= HTTP_HEADER_AUTH;
}
if (strstr(tmp, "content-length:")) {
have_header |= HTTP_HEADER_CONTENT_LENGTH;
}
if (strstr(tmp, "content-type:")) {
have_header |= HTTP_HEADER_TYPE;
}
}
efree(tmp);
}
/* auth header if it was specified */
if (((have_header & HTTP_HEADER_AUTH) == 0) && resource->user && resource->pass) {
/* decode the strings first */
php_url_decode(resource->user, strlen(resource->user));
php_url_decode(resource->pass, strlen(resource->pass));
/* scratch is large enough, since it was made large enough for the whole URL */
strcpy(scratch, resource->user);
strcat(scratch, ":");
strcat(scratch, resource->pass);
tmp = (char*)php_base64_encode((unsigned char*)scratch, strlen(scratch), NULL);
if (snprintf(scratch, scratch_len, "Authorization: Basic %s\r\n", tmp) > 0) {
php_stream_write(stream, scratch, strlen(scratch));
php_stream_notify_info(context, PHP_STREAM_NOTIFY_AUTH_REQUIRED, NULL, 0);
}
efree(tmp);
tmp = NULL;
}
/* if the user has configured who they are, send a From: line */
if (((have_header & HTTP_HEADER_FROM) == 0) && cfg_get_string("from", &tmp) == SUCCESS) {
if (snprintf(scratch, scratch_len, "From: %s\r\n", tmp) > 0)
php_stream_write(stream, scratch, strlen(scratch));
}
/* Send Host: header so name-based virtual hosts work */
if ((have_header & HTTP_HEADER_HOST) == 0) {
if ((use_ssl && resource->port != 443 && resource->port != 0) ||
(!use_ssl && resource->port != 80 && resource->port != 0)) {
if (snprintf(scratch, scratch_len, "Host: %s:%i\r\n", resource->host, resource->port) > 0)
php_stream_write(stream, scratch, strlen(scratch));
} else {
if (snprintf(scratch, scratch_len, "Host: %s\r\n", resource->host) > 0) {
php_stream_write(stream, scratch, strlen(scratch));
}
}
}
if (context &&
php_stream_context_get_option(context, "http", "user_agent", &ua_zval) == SUCCESS &&
Z_TYPE_PP(ua_zval) == IS_STRING) {
ua_str = Z_STRVAL_PP(ua_zval);
} else if (FG(user_agent)) {
ua_str = FG(user_agent);
}
if (((have_header & HTTP_HEADER_USER_AGENT) == 0) && ua_str) {
#define _UA_HEADER "User-Agent: %s\r\n"
char *ua;
size_t ua_len;
ua_len = sizeof(_UA_HEADER) + strlen(ua_str);
/* ensure the header is only sent if user_agent is not blank */
if (ua_len > sizeof(_UA_HEADER)) {
ua = emalloc(ua_len + 1);
if ((ua_len = snprintf(ua, ua_len, _UA_HEADER, ua_str)) > 0) {
ua[ua_len] = 0;
php_stream_write(stream, ua, ua_len);
} else {
php_error_docref(NULL TSRMLS_CC, E_WARNING, "Cannot construct User-agent header");
}
if (ua) {
efree(ua);
}
}
}
if (user_headers) {
/* A bit weird, but some servers require that Content-Length be sent prior to Content-Type for POST
* see bug #44603 for details. Since Content-Type maybe part of user's headers we need to do this check first.
*/
if (
header_init &&
context &&
!(have_header & HTTP_HEADER_CONTENT_LENGTH) &&
php_stream_context_get_option(context, "http", "content", &tmpzval) == SUCCESS &&
Z_TYPE_PP(tmpzval) == IS_STRING && Z_STRLEN_PP(tmpzval) > 0
) {
scratch_len = slprintf(scratch, scratch_len, "Content-Length: %d\r\n", Z_STRLEN_PP(tmpzval));
php_stream_write(stream, scratch, scratch_len);
have_header |= HTTP_HEADER_CONTENT_LENGTH;
}
php_stream_write(stream, user_headers, strlen(user_headers));
php_stream_write(stream, "\r\n", sizeof("\r\n")-1);
efree(user_headers);
}
/* Request content, such as for POST requests */
if (header_init && context &&
php_stream_context_get_option(context, "http", "content", &tmpzval) == SUCCESS &&
Z_TYPE_PP(tmpzval) == IS_STRING && Z_STRLEN_PP(tmpzval) > 0) {
if (!(have_header & HTTP_HEADER_CONTENT_LENGTH)) {
scratch_len = snprintf(scratch, scratch_len, "Content-Length: %d\r\n", Z_STRLEN_PP(tmpzval));
php_stream_write(stream, scratch, scratch_len);
}
if (!(have_header & HTTP_HEADER_TYPE)) {
php_stream_write(stream, "Content-Type: application/x-www-form-urlencoded\r\n",
sizeof("Content-Type: application/x-www-form-urlencoded\r\n") - 1);
php_error_docref(NULL TSRMLS_CC, E_NOTICE, "Content-type not specified assuming application/x-www-form-urlencoded");
}
php_stream_write(stream, "\r\n", sizeof("\r\n")-1);
php_stream_write(stream, Z_STRVAL_PP(tmpzval), Z_STRLEN_PP(tmpzval));
php_stream_write(stream, "\r\n\r\n", sizeof("\r\n\r\n")-1);
} else {
php_stream_write(stream, "\r\n", sizeof("\r\n")-1);
}
location[0] = '\0';
if (!EG(active_symbol_table)) {
zend_rebuild_symbol_table(TSRMLS_C);
}
if (header_init) {
zval *tmp;
MAKE_STD_ZVAL(tmp);
array_init(tmp);
ZEND_SET_SYMBOL(EG(active_symbol_table), "http_response_header", tmp);
}
{
zval **rh;
zend_ascii_hash_find(EG(active_symbol_table), "http_response_header", sizeof("http_response_header"), (void **) &rh);
response_header = *rh;
}
if (!php_stream_eof(stream)) {
size_t tmp_line_len;
/* get response header */
if (php_stream_get_line(stream, ZSTR(tmp_line), sizeof(tmp_line) - 1, &tmp_line_len) != NULL) {
zval *http_response;
int response_code;
if (tmp_line_len > 9) {
response_code = atoi(tmp_line + 9);
} else {
response_code = 0;
}
/* when we request only the header, don't fail even on error codes */
if ((options & STREAM_ONLY_GET_HEADERS) ||
(context && php_stream_context_get_option(context, "http", "ignore_errors", &tmpzval) == SUCCESS && zend_is_true(*tmpzval)) ) {
reqok = 1;
}
/* all status codes in the 2xx range are defined by the specification as successful;
* all status codes in the 3xx range are for redirection, and so also should never
* fail */
if (response_code >= 200 && response_code < 400) {
reqok = 1;
} else {
switch(response_code) {
case 403:
php_stream_notify_error(context, PHP_STREAM_NOTIFY_AUTH_RESULT,
tmp_line, response_code);
break;
default:
/* safety net in the event tmp_line == NULL */
if (!tmp_line_len) {
tmp_line[0] = '\0';
}
php_stream_notify_error(context, PHP_STREAM_NOTIFY_FAILURE,
tmp_line, response_code);
}
}
if (tmp_line[tmp_line_len - 1] == '\n') {
--tmp_line_len;
if (tmp_line[tmp_line_len - 1] == '\r') {
--tmp_line_len;
}
}
MAKE_STD_ZVAL(http_response);
ZVAL_STRINGL(http_response, tmp_line, tmp_line_len, 1);
zend_hash_next_index_insert(Z_ARRVAL_P(response_header), &http_response, sizeof(zval *), NULL);
}
} else {
php_stream_wrapper_log_error(wrapper, options TSRMLS_CC, "HTTP request failed, unexpected end of socket!");
goto out;
}
/* read past HTTP headers */
http_header_line = emalloc(HTTP_HEADER_BLOCK_SIZE);
while (!body && !php_stream_eof(stream)) {
size_t http_header_line_length;
if (php_stream_get_line(stream, ZSTR(http_header_line), HTTP_HEADER_BLOCK_SIZE, &http_header_line_length) && *http_header_line != '\n' && *http_header_line != '\r') {
char *e = http_header_line + http_header_line_length - 1;
while (*e == '\n' || *e == '\r') {
e--;
}
http_header_line_length = e - http_header_line + 1;
http_header_line[http_header_line_length] = '\0';
if (!strncasecmp(http_header_line, "Location: ", 10)) {
strlcpy(location, http_header_line + 10, sizeof(location));
} else if (!strncasecmp(http_header_line, "Content-Type: ", 14)) {
if (strchr(mode, 't')) {
charset = php_http_detect_charset(http_header_line + sizeof("Content-type: "));
}
php_stream_notify_info(context, PHP_STREAM_NOTIFY_MIME_TYPE_IS, http_header_line + 14, 0);
} else if (!strncasecmp(http_header_line, "Content-Length: ", 16)) {
file_size = atoi(http_header_line + 16);
php_stream_notify_file_size(context, file_size, http_header_line, 0);
} else if (!strncasecmp(http_header_line, "Transfer-Encoding: chunked", sizeof("Transfer-Encoding: chunked"))) {
/* create filter to decode response body */
if (!(options & STREAM_ONLY_GET_HEADERS)) {
long decode = 1;
if (context && php_stream_context_get_option(context, "http", "auto_decode", &tmpzval) == SUCCESS) {
SEPARATE_ZVAL(tmpzval);
convert_to_boolean(*tmpzval);
decode = Z_LVAL_PP(tmpzval);
}
if (decode) {
transfer_encoding = php_stream_filter_create("dechunk", NULL, php_stream_is_persistent(stream) TSRMLS_CC);
if (transfer_encoding) {
/* don't store transfer-encodeing header */
continue;
}
}
}
}
if (http_header_line[0] == '\0') {
body = 1;
} else {
zval *http_header;
MAKE_STD_ZVAL(http_header);
ZVAL_STRINGL(http_header, http_header_line, http_header_line_length, 1);
zend_hash_next_index_insert(Z_ARRVAL_P(response_header), &http_header, sizeof(zval *), NULL);
}
} else {
break;
}
}
if (!reqok || location[0] != '\0') {
if (options & STREAM_ONLY_GET_HEADERS && redirect_max <= 1) {
goto out;
}
if (location[0] != '\0')
php_stream_notify_info(context, PHP_STREAM_NOTIFY_REDIRECTED, location, 0);
if (context) { /* keep the context for the next try */
zend_list_addref(context->rsrc_id);
}
php_stream_close(stream);
stream = NULL;
if (charset) {
efree(charset);
charset = NULL;
}
if (location[0] != '\0') {
char new_path[HTTP_HEADER_BLOCK_SIZE];
char loc_path[HTTP_HEADER_BLOCK_SIZE];
*new_path='\0';
if (strlen(location)<8 || (strncasecmp(location, "http://", sizeof("http://")-1) &&
strncasecmp(location, "https://", sizeof("https://")-1) &&
strncasecmp(location, "ftp://", sizeof("ftp://")-1) &&
strncasecmp(location, "ftps://", sizeof("ftps://")-1)))
{
if (*location != '/') {
if (*(location+1) != '\0' && resource->path) {
char *s = strrchr(resource->path, '/');
if (!s) {
s = resource->path;
if (!s[0]) {
efree(s);
s = resource->path = estrdup("/");
} else {
*s = '/';
}
}
s[1] = '\0';
if (resource->path && *(resource->path) == '/' && *(resource->path + 1) == '\0') {
snprintf(loc_path, sizeof(loc_path) - 1, "%s%s", resource->path, location);
} else {
snprintf(loc_path, sizeof(loc_path) - 1, "%s/%s", resource->path, location);
}
} else {
snprintf(loc_path, sizeof(loc_path) - 1, "/%s", location);
}
} else {
strlcpy(loc_path, location, sizeof(loc_path));
}
if ((use_ssl && resource->port != 443) || (!use_ssl && resource->port != 80)) {
snprintf(new_path, sizeof(new_path) - 1, "%s://%s:%d%s", resource->scheme, resource->host, resource->port, loc_path);
} else {
snprintf(new_path, sizeof(new_path) - 1, "%s://%s%s", resource->scheme, resource->host, loc_path);
}
} else {
strlcpy(new_path, location, sizeof(new_path));
}
php_url_free(resource);
/* check for invalid redirection URLs */
if ((resource = php_url_parse(new_path)) == NULL) {
php_stream_wrapper_log_error(wrapper, options TSRMLS_CC, "Invalid redirect URL! %s", new_path);
goto out;
}
#define CHECK_FOR_CNTRL_CHARS(val) { \
if (val) { \
unsigned char *s, *e; \
int l; \
l = php_url_decode(val, strlen(val)); \
s = (unsigned char*)val; e = s + l; \
while (s < e) { \
if (iscntrl(*s)) { \
php_stream_wrapper_log_error(wrapper, options TSRMLS_CC, "Invalid redirect URL! %s", new_path); \
goto out; \
} \
s++; \
} \
} \
} \
/* check for control characters in login, password & path */
if (strncasecmp(new_path, "http://", sizeof("http://") - 1) || strncasecmp(new_path, "https://", sizeof("https://") - 1)) {
CHECK_FOR_CNTRL_CHARS(resource->user)
CHECK_FOR_CNTRL_CHARS(resource->pass)
CHECK_FOR_CNTRL_CHARS(resource->path)
}
stream = php_stream_url_wrap_http_ex(wrapper, new_path, mode, options, opened_path, context, --redirect_max, HTTP_WRAPPER_REDIRECTED STREAMS_CC TSRMLS_CC);
} else {
php_stream_wrapper_log_error(wrapper, options TSRMLS_CC, "HTTP request failed! %s", tmp_line);
}
}
out:
if (protocol_version) {
efree(protocol_version);
}
if (http_header_line) {
efree(http_header_line);
}
if (scratch) {
efree(scratch);
}
if (resource) {
php_url_free(resource);
}
if (stream) {
if (header_init) {
zval_add_ref(&response_header);
stream->wrapperdata = response_header;
}
php_stream_notify_progress_init(context, 0, file_size);
/* Restore original chunk size now that we're done with headers */
if (options & STREAM_WILL_CAST)
php_stream_set_chunk_size(stream, chunk_size);
/* restore the users auto-detect-line-endings setting */
stream->flags |= eol_detect;
/* as far as streams are concerned, we are now at the start of
* the stream */
stream->position = 0;
if (transfer_encoding) {
php_stream_filter_append(&stream->readfilters, transfer_encoding);
}
} else if (transfer_encoding) {
php_stream_filter_free(transfer_encoding TSRMLS_CC);
}
if (charset) {
if (stream && strchr(mode, 't')) {
php_stream_encoding_apply(stream, 0, charset, UG(to_error_mode), NULL);
}
efree(charset);
}
return stream;
}
/* }}} */
php_stream *php_stream_url_wrap_http(php_stream_wrapper *wrapper, char *path, char *mode, int options, char **opened_path, php_stream_context *context STREAMS_DC TSRMLS_DC) /* {{{ */
{
return php_stream_url_wrap_http_ex(wrapper, path, mode, options, opened_path, context, PHP_URL_REDIRECT_MAX, HTTP_WRAPPER_HEADER_INIT STREAMS_CC TSRMLS_CC);
}
/* }}} */
static int php_stream_http_stream_stat(php_stream_wrapper *wrapper, php_stream *stream, php_stream_statbuf *ssb TSRMLS_DC) /* {{{ */
{
/* one day, we could fill in the details based on Date: and Content-Length:
* headers. For now, we return with a failure code to prevent the underlying
* file's details from being used instead. */
return -1;
}
/* }}} */
static php_stream_wrapper_ops http_stream_wops = {
php_stream_url_wrap_http,
NULL, /* stream_close */
php_stream_http_stream_stat,
NULL, /* stat_url */
NULL, /* opendir */
"http",
NULL, /* unlink */
NULL, /* rename */
NULL, /* mkdir */
NULL /* rmdir */
};
PHPAPI php_stream_wrapper php_stream_http_wrapper = {
&http_stream_wops,
NULL,
1 /* is_url */
};
/*
* Local variables:
* tab-width: 4
* c-basic-offset: 4
* End:
* vim600: sw=4 ts=4 fdm=marker
* vim<600: sw=4 ts=4
*/
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