mirror of
https://github.com/php/php-src.git
synced 2024-12-21 16:00:18 +08:00
410 lines
11 KiB
C
410 lines
11 KiB
C
/*
|
|
+----------------------------------------------------------------------+
|
|
| PHP Version 5 |
|
|
+----------------------------------------------------------------------+
|
|
| Copyright (c) 1997-2012 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> |
|
|
+----------------------------------------------------------------------+
|
|
*/
|
|
/* $Id$ */
|
|
|
|
#include <stdio.h>
|
|
#include <stdlib.h>
|
|
#if HAVE_UNISTD_H
|
|
#include <unistd.h>
|
|
#endif
|
|
|
|
#include "php.h"
|
|
#include "php_globals.h"
|
|
#include "php_standard.h"
|
|
#include "php_fopen_wrappers.h"
|
|
#include "SAPI.h"
|
|
|
|
static size_t php_stream_output_write(php_stream *stream, const char *buf, size_t count TSRMLS_DC) /* {{{ */
|
|
{
|
|
PHPWRITE(buf, count);
|
|
return count;
|
|
}
|
|
/* }}} */
|
|
|
|
static size_t php_stream_output_read(php_stream *stream, char *buf, size_t count TSRMLS_DC) /* {{{ */
|
|
{
|
|
stream->eof = 1;
|
|
return 0;
|
|
}
|
|
/* }}} */
|
|
|
|
static int php_stream_output_close(php_stream *stream, int close_handle TSRMLS_DC) /* {{{ */
|
|
{
|
|
return 0;
|
|
}
|
|
/* }}} */
|
|
|
|
php_stream_ops php_stream_output_ops = {
|
|
php_stream_output_write,
|
|
php_stream_output_read,
|
|
php_stream_output_close,
|
|
NULL, /* flush */
|
|
"Output",
|
|
NULL, /* seek */
|
|
NULL, /* cast */
|
|
NULL, /* stat */
|
|
NULL /* set_option */
|
|
};
|
|
|
|
static size_t php_stream_input_write(php_stream *stream, const char *buf, size_t count TSRMLS_DC) /* {{{ */
|
|
{
|
|
return -1;
|
|
}
|
|
/* }}} */
|
|
|
|
static size_t php_stream_input_read(php_stream *stream, char *buf, size_t count TSRMLS_DC) /* {{{ */
|
|
{
|
|
off_t *position = (off_t*)stream->abstract;
|
|
size_t read_bytes = 0;
|
|
|
|
if (!stream->eof) {
|
|
if (SG(request_info).raw_post_data) { /* data has already been read by a post handler */
|
|
read_bytes = SG(request_info).raw_post_data_length - *position;
|
|
if (read_bytes <= count) {
|
|
stream->eof = 1;
|
|
} else {
|
|
read_bytes = count;
|
|
}
|
|
if (read_bytes) {
|
|
memcpy(buf, SG(request_info).raw_post_data + *position, read_bytes);
|
|
}
|
|
} else if (sapi_module.read_post) {
|
|
read_bytes = sapi_module.read_post(buf, count TSRMLS_CC);
|
|
if (read_bytes <= 0) {
|
|
stream->eof = 1;
|
|
read_bytes = 0;
|
|
}
|
|
/* Increment SG(read_post_bytes) only when something was actually read. */
|
|
SG(read_post_bytes) += read_bytes;
|
|
} else {
|
|
stream->eof = 1;
|
|
}
|
|
}
|
|
|
|
*position += read_bytes;
|
|
|
|
return read_bytes;
|
|
}
|
|
/* }}} */
|
|
|
|
static int php_stream_input_close(php_stream *stream, int close_handle TSRMLS_DC) /* {{{ */
|
|
{
|
|
efree(stream->abstract);
|
|
|
|
return 0;
|
|
}
|
|
/* }}} */
|
|
|
|
static int php_stream_input_flush(php_stream *stream TSRMLS_DC) /* {{{ */
|
|
{
|
|
return -1;
|
|
}
|
|
/* }}} */
|
|
|
|
php_stream_ops php_stream_input_ops = {
|
|
php_stream_input_write,
|
|
php_stream_input_read,
|
|
php_stream_input_close,
|
|
php_stream_input_flush,
|
|
"Input",
|
|
NULL, /* seek */
|
|
NULL, /* cast */
|
|
NULL, /* stat */
|
|
NULL /* set_option */
|
|
};
|
|
|
|
static void php_stream_apply_filter_list(php_stream *stream, char *filterlist, int read_chain, int write_chain TSRMLS_DC) /* {{{ */
|
|
{
|
|
char *p, *token;
|
|
php_stream_filter *temp_filter;
|
|
|
|
p = php_strtok_r(filterlist, "|", &token);
|
|
while (p) {
|
|
php_url_decode(p, strlen(p));
|
|
if (read_chain) {
|
|
if ((temp_filter = php_stream_filter_create(p, NULL, php_stream_is_persistent(stream) TSRMLS_CC))) {
|
|
php_stream_filter_append(&stream->readfilters, temp_filter);
|
|
} else {
|
|
php_error_docref(NULL TSRMLS_CC, E_WARNING, "Unable to create filter (%s)", p);
|
|
}
|
|
}
|
|
if (write_chain) {
|
|
if ((temp_filter = php_stream_filter_create(p, NULL, php_stream_is_persistent(stream) TSRMLS_CC))) {
|
|
php_stream_filter_append(&stream->writefilters, temp_filter);
|
|
} else {
|
|
php_error_docref(NULL TSRMLS_CC, E_WARNING, "Unable to create filter (%s)", p);
|
|
}
|
|
}
|
|
p = php_strtok_r(NULL, "|", &token);
|
|
}
|
|
}
|
|
/* }}} */
|
|
|
|
php_stream * php_stream_url_wrap_php(php_stream_wrapper *wrapper, char *path, char *mode, int options, char **opened_path, php_stream_context *context STREAMS_DC TSRMLS_DC) /* {{{ */
|
|
{
|
|
int fd = -1;
|
|
int mode_rw = 0;
|
|
php_stream * stream = NULL;
|
|
char *p, *token, *pathdup;
|
|
long max_memory;
|
|
FILE *file = NULL;
|
|
|
|
if (!strncasecmp(path, "php://", 6)) {
|
|
path += 6;
|
|
}
|
|
|
|
if (!strncasecmp(path, "temp", 4)) {
|
|
path += 4;
|
|
max_memory = PHP_STREAM_MAX_MEM;
|
|
if (!strncasecmp(path, "/maxmemory:", 11)) {
|
|
path += 11;
|
|
max_memory = strtol(path, NULL, 10);
|
|
if (max_memory < 0) {
|
|
php_error_docref(NULL TSRMLS_CC, E_RECOVERABLE_ERROR, "Max memory must be >= 0");
|
|
return NULL;
|
|
}
|
|
}
|
|
if (strpbrk(mode, "wa+")) {
|
|
mode_rw = TEMP_STREAM_DEFAULT;
|
|
} else {
|
|
mode_rw = TEMP_STREAM_READONLY;
|
|
}
|
|
return php_stream_temp_create(mode_rw, max_memory);
|
|
}
|
|
|
|
if (!strcasecmp(path, "memory")) {
|
|
if (strpbrk(mode, "wa+")) {
|
|
mode_rw = TEMP_STREAM_DEFAULT;
|
|
} else {
|
|
mode_rw = TEMP_STREAM_READONLY;
|
|
}
|
|
return php_stream_memory_create(mode_rw);
|
|
}
|
|
|
|
if (!strcasecmp(path, "output")) {
|
|
return php_stream_alloc(&php_stream_output_ops, NULL, 0, "wb");
|
|
}
|
|
|
|
if (!strcasecmp(path, "input")) {
|
|
if ((options & STREAM_OPEN_FOR_INCLUDE) && !PG(allow_url_include) ) {
|
|
if (options & REPORT_ERRORS) {
|
|
php_error_docref(NULL TSRMLS_CC, E_WARNING, "URL file-access is disabled in the server configuration");
|
|
}
|
|
return NULL;
|
|
}
|
|
return php_stream_alloc(&php_stream_input_ops, ecalloc(1, sizeof(off_t)), 0, "rb");
|
|
}
|
|
|
|
if (!strcasecmp(path, "stdin")) {
|
|
if ((options & STREAM_OPEN_FOR_INCLUDE) && !PG(allow_url_include) ) {
|
|
if (options & REPORT_ERRORS) {
|
|
php_error_docref(NULL TSRMLS_CC, E_WARNING, "URL file-access is disabled in the server configuration");
|
|
}
|
|
return NULL;
|
|
}
|
|
if (!strcmp(sapi_module.name, "cli")) {
|
|
static int cli_in = 0;
|
|
fd = STDIN_FILENO;
|
|
if (cli_in) {
|
|
fd = dup(fd);
|
|
} else {
|
|
cli_in = 1;
|
|
file = stdin;
|
|
}
|
|
} else {
|
|
fd = dup(STDIN_FILENO);
|
|
}
|
|
} else if (!strcasecmp(path, "stdout")) {
|
|
if (!strcmp(sapi_module.name, "cli")) {
|
|
static int cli_out = 0;
|
|
fd = STDOUT_FILENO;
|
|
if (cli_out++) {
|
|
fd = dup(fd);
|
|
} else {
|
|
cli_out = 1;
|
|
file = stdout;
|
|
}
|
|
} else {
|
|
fd = dup(STDOUT_FILENO);
|
|
}
|
|
} else if (!strcasecmp(path, "stderr")) {
|
|
if (!strcmp(sapi_module.name, "cli")) {
|
|
static int cli_err = 0;
|
|
fd = STDERR_FILENO;
|
|
if (cli_err++) {
|
|
fd = dup(fd);
|
|
} else {
|
|
cli_err = 1;
|
|
file = stderr;
|
|
}
|
|
} else {
|
|
fd = dup(STDERR_FILENO);
|
|
}
|
|
} else if (!strncasecmp(path, "fd/", 3)) {
|
|
char *start,
|
|
*end;
|
|
long fildes_ori;
|
|
int dtablesize;
|
|
|
|
if (strcmp(sapi_module.name, "cli")) {
|
|
if (options & REPORT_ERRORS) {
|
|
php_error_docref(NULL TSRMLS_CC, E_WARNING, "Direct access to file descriptors is only available from command-line PHP");
|
|
}
|
|
return NULL;
|
|
}
|
|
|
|
if ((options & STREAM_OPEN_FOR_INCLUDE) && !PG(allow_url_include) ) {
|
|
if (options & REPORT_ERRORS) {
|
|
php_error_docref(NULL TSRMLS_CC, E_WARNING, "URL file-access is disabled in the server configuration");
|
|
}
|
|
return NULL;
|
|
}
|
|
|
|
start = &path[3];
|
|
fildes_ori = strtol(start, &end, 10);
|
|
if (end == start || *end != '\0') {
|
|
php_stream_wrapper_log_error(wrapper, options TSRMLS_CC,
|
|
"php://fd/ stream must be specified in the form php://fd/<orig fd>");
|
|
return NULL;
|
|
}
|
|
|
|
#if HAVE_UNISTD_H
|
|
dtablesize = getdtablesize();
|
|
#else
|
|
dtablesize = INT_MAX;
|
|
#endif
|
|
|
|
if (fildes_ori < 0 || fildes_ori >= dtablesize) {
|
|
php_stream_wrapper_log_error(wrapper, options TSRMLS_CC,
|
|
"The file descriptors must be non-negative numbers smaller than %d", dtablesize);
|
|
return NULL;
|
|
}
|
|
|
|
fd = dup(fildes_ori);
|
|
if (fd == -1) {
|
|
php_stream_wrapper_log_error(wrapper, options TSRMLS_CC,
|
|
"Error duping file descriptor %ld; possibly it doesn't exist: "
|
|
"[%d]: %s", fildes_ori, errno, strerror(errno));
|
|
return NULL;
|
|
}
|
|
} else if (!strncasecmp(path, "filter/", 7)) {
|
|
/* Save time/memory when chain isn't specified */
|
|
if (strchr(mode, 'r') || strchr(mode, '+')) {
|
|
mode_rw |= PHP_STREAM_FILTER_READ;
|
|
}
|
|
if (strchr(mode, 'w') || strchr(mode, '+') || strchr(mode, 'a')) {
|
|
mode_rw |= PHP_STREAM_FILTER_WRITE;
|
|
}
|
|
pathdup = estrndup(path + 6, strlen(path + 6));
|
|
p = strstr(pathdup, "/resource=");
|
|
if (!p) {
|
|
php_error_docref(NULL TSRMLS_CC, E_RECOVERABLE_ERROR, "No URL resource specified");
|
|
efree(pathdup);
|
|
return NULL;
|
|
}
|
|
if (!(stream = php_stream_open_wrapper(p + 10, mode, options, opened_path))) {
|
|
efree(pathdup);
|
|
return NULL;
|
|
}
|
|
|
|
*p = '\0';
|
|
|
|
p = php_strtok_r(pathdup + 1, "/", &token);
|
|
while (p) {
|
|
if (!strncasecmp(p, "read=", 5)) {
|
|
php_stream_apply_filter_list(stream, p + 5, 1, 0 TSRMLS_CC);
|
|
} else if (!strncasecmp(p, "write=", 6)) {
|
|
php_stream_apply_filter_list(stream, p + 6, 0, 1 TSRMLS_CC);
|
|
} else {
|
|
php_stream_apply_filter_list(stream, p, mode_rw & PHP_STREAM_FILTER_READ, mode_rw & PHP_STREAM_FILTER_WRITE TSRMLS_CC);
|
|
}
|
|
p = php_strtok_r(NULL, "/", &token);
|
|
}
|
|
efree(pathdup);
|
|
|
|
return stream;
|
|
} else {
|
|
/* invalid php://thingy */
|
|
php_error_docref(NULL TSRMLS_CC, E_WARNING, "Invalid php:// URL specified");
|
|
return NULL;
|
|
}
|
|
|
|
/* must be stdin, stderr or stdout */
|
|
if (fd == -1) {
|
|
/* failed to dup */
|
|
return NULL;
|
|
}
|
|
|
|
#if defined(S_IFSOCK) && !defined(WIN32) && !defined(__BEOS__)
|
|
do {
|
|
struct stat st;
|
|
memset(&st, 0, sizeof(st));
|
|
if (fstat(fd, &st) == 0 && (st.st_mode & S_IFMT) == S_IFSOCK) {
|
|
stream = php_stream_sock_open_from_socket(fd, NULL);
|
|
if (stream) {
|
|
stream->ops = &php_stream_socket_ops;
|
|
return stream;
|
|
}
|
|
}
|
|
} while (0);
|
|
#endif
|
|
|
|
if (file) {
|
|
stream = php_stream_fopen_from_file(file, mode);
|
|
} else {
|
|
stream = php_stream_fopen_from_fd(fd, mode, NULL);
|
|
if (stream == NULL) {
|
|
close(fd);
|
|
}
|
|
}
|
|
|
|
return stream;
|
|
}
|
|
/* }}} */
|
|
|
|
static php_stream_wrapper_ops php_stdio_wops = {
|
|
php_stream_url_wrap_php,
|
|
NULL, /* close */
|
|
NULL, /* fstat */
|
|
NULL, /* stat */
|
|
NULL, /* opendir */
|
|
"PHP",
|
|
NULL, /* unlink */
|
|
NULL, /* rename */
|
|
NULL, /* mkdir */
|
|
NULL /* rmdir */
|
|
};
|
|
|
|
php_stream_wrapper php_stream_php_wrapper = {
|
|
&php_stdio_wops,
|
|
NULL,
|
|
0, /* 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
|
|
*/
|