mirror of
https://github.com/php/php-src.git
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257 lines
6.8 KiB
C
257 lines
6.8 KiB
C
/*
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+----------------------------------------------------------------------+
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| PHP Version 5 |
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+----------------------------------------------------------------------+
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| Copyright (c) 1997-2004 The PHP Group |
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+----------------------------------------------------------------------+
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| This source file is subject to version 3.0 of the PHP license, |
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| that is bundled with this package in the file LICENSE, and is |
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| available through the world-wide-web at the following url: |
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| http://www.php.net/license/3_0.txt. |
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| If you did not receive a copy of the PHP license and are unable to |
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| obtain it through the world-wide-web, please send a note to |
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| license@php.net so we can mail you a copy immediately. |
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+----------------------------------------------------------------------+
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| Authors: Rasmus Lerdorf <rasmus@php.net> |
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| Jim Winstead <jimw@php.net> |
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| Hartmut Holzgraefe <hholzgra@php.net> |
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+----------------------------------------------------------------------+
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*/
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/* $Id$ */
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#include <stdio.h>
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#include <stdlib.h>
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#if HAVE_UNISTD_H
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#include <unistd.h>
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#endif
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#include "php.h"
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#include "php_globals.h"
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#include "php_standard.h"
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#include "php_fopen_wrappers.h"
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#include "SAPI.h"
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static size_t php_stream_output_write(php_stream *stream, const char *buf, size_t count TSRMLS_DC)
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{
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PHPWRITE(buf, count);
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return count;
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}
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static size_t php_stream_output_read(php_stream *stream, char *buf, size_t count TSRMLS_DC)
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{
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stream->eof = 1;
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return 0;
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}
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static int php_stream_output_close(php_stream *stream, int close_handle TSRMLS_DC)
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{
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return 0;
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}
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static int php_stream_output_flush(php_stream *stream TSRMLS_DC)
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{
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sapi_flush(TSRMLS_C);
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return 0;
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}
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php_stream_ops php_stream_output_ops = {
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php_stream_output_write,
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php_stream_output_read,
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php_stream_output_close,
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php_stream_output_flush,
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"Output",
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NULL, /* seek */
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NULL, /* cast */
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NULL, /* stat */
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NULL /* set_option */
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};
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static size_t php_stream_input_write(php_stream *stream, const char *buf, size_t count TSRMLS_DC)
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{
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return -1;
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}
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static size_t php_stream_input_read(php_stream *stream, char *buf, size_t count TSRMLS_DC)
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{
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size_t read_bytes = 0;
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if(!stream->eof) {
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if(SG(request_info).raw_post_data) { /* data has already been read by a post handler */
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read_bytes = SG(request_info).raw_post_data_length - stream->position;
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if(read_bytes <= count) {
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stream->eof = 1;
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} else {
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read_bytes = count;
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}
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if(read_bytes) {
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memcpy(buf, SG(request_info).raw_post_data + stream->position, read_bytes);
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}
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} else if(sapi_module.read_post) {
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read_bytes = sapi_module.read_post(buf, count TSRMLS_CC);
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if(read_bytes <= 0){
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stream->eof = 1;
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read_bytes = 0;
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}
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} else {
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stream->eof = 1;
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}
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}
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SG(read_post_bytes) += read_bytes;
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return read_bytes;
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}
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static int php_stream_input_close(php_stream *stream, int close_handle TSRMLS_DC)
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{
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return 0;
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}
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static int php_stream_input_flush(php_stream *stream TSRMLS_DC)
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{
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return -1;
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}
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php_stream_ops php_stream_input_ops = {
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php_stream_input_write,
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php_stream_input_read,
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php_stream_input_close,
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php_stream_input_flush,
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"Input",
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NULL, /* seek */
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NULL, /* cast */
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NULL, /* stat */
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NULL /* set_option */
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};
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static void php_stream_apply_filter_list(php_stream *stream, char *filterlist, int read_chain, int write_chain TSRMLS_DC) {
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char *p, *token;
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php_stream_filter *temp_filter;
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p = php_strtok_r(filterlist, "|", &token);
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while (p) {
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if (read_chain) {
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if ((temp_filter = php_stream_filter_create(p, NULL, php_stream_is_persistent(stream) TSRMLS_CC))) {
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php_stream_filter_append(&stream->readfilters, temp_filter);
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} else {
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php_error_docref(NULL TSRMLS_CC, E_WARNING, "Unable to create filter (%s)\n", p);
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}
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}
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if (write_chain) {
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if ((temp_filter = php_stream_filter_create(p, NULL, php_stream_is_persistent(stream) TSRMLS_CC))) {
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php_stream_filter_append(&stream->writefilters, temp_filter);
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} else {
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php_error_docref(NULL TSRMLS_CC, E_WARNING, "Unable to create filter (%s)\n", p);
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}
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}
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p = php_strtok_r(NULL, "|", &token);
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}
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}
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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)
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{
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int fd = -1;
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int mode_rw = 0;
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php_stream * stream = NULL;
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char *p, *token, *pathdup;
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if (!strncasecmp(path, "php://", 6))
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path += 6;
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if (!strcasecmp(path, "output")) {
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return php_stream_alloc(&php_stream_output_ops, NULL, 0, "wb");
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}
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if (!strcasecmp(path, "input")) {
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return php_stream_alloc(&php_stream_input_ops, NULL, 0, "rb");
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}
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if (!strcasecmp(path, "stdin")) {
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fd = dup(STDIN_FILENO);
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} else if (!strcasecmp(path, "stdout")) {
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fd = dup(STDOUT_FILENO);
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} else if (!strcasecmp(path, "stderr")) {
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fd = dup(STDERR_FILENO);
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} else if (!strncasecmp(path, "filter/", 7)) {
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/* Save time/memory when chain isn't specified */
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if (strchr(mode, 'r') || strchr(mode, '+')) {
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mode_rw |= PHP_STREAM_FILTER_READ;
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}
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if (strchr(mode, 'w') || strchr(mode, '+') || strchr(mode, 'a')) {
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mode_rw |= PHP_STREAM_FILTER_WRITE;
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}
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pathdup = estrndup(path + 6, strlen(path + 6));
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p = strstr(pathdup, "/resource=");
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if (!p) {
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php_error_docref(NULL TSRMLS_CC, E_ERROR, "No URL resource specified.");
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efree(pathdup);
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return NULL;
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}
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if (!(stream = php_stream_open_wrapper(p + 10, mode, options, opened_path))) {
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efree(pathdup);
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return NULL;
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}
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*p = '\0';
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p = php_strtok_r(pathdup + 1, "/", &token);
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while (p) {
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if (!strncasecmp(p, "read=", 5)) {
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php_stream_apply_filter_list(stream, p + 5, 1, 0 TSRMLS_CC);
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} else if (!strncasecmp(p, "write=", 6)) {
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php_stream_apply_filter_list(stream, p + 6, 0, 1 TSRMLS_CC);
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} else {
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php_stream_apply_filter_list(stream, p, mode_rw & PHP_STREAM_FILTER_READ, mode_rw & PHP_STREAM_FILTER_WRITE TSRMLS_CC);
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}
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p = php_strtok_r(NULL, "/", &token);
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}
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efree(pathdup);
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return stream;
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} else {
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/* invalid php://thingy */
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return NULL;
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}
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/* must be stdin, stderr or stdout */
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if (fd == -1) {
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/* failed to dup */
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return NULL;
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}
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stream = php_stream_fopen_from_fd(fd, mode, NULL);
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if (stream == NULL) {
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close(fd);
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}
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return stream;
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}
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static php_stream_wrapper_ops php_stdio_wops = {
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php_stream_url_wrap_php,
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NULL, /* close */
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NULL, /* fstat */
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NULL, /* stat */
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NULL, /* opendir */
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"PHP",
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NULL, /* unlink */
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NULL, /* rename */
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NULL, /* mkdir */
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NULL /* rmdir */
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};
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php_stream_wrapper php_stream_php_wrapper = {
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&php_stdio_wops,
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NULL,
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0, /* is_url */
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};
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/*
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* Local variables:
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* tab-width: 4
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* c-basic-offset: 4
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* End:
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* vim600: sw=4 ts=4 fdm=marker
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* vim<600: sw=4 ts=4
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*/
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