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358 lines
10 KiB
C
358 lines
10 KiB
C
/*
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+----------------------------------------------------------------------+
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| PHP version 4.0 |
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+----------------------------------------------------------------------+
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| Copyright (c) 1997, 1998, 1999 The PHP Group |
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+----------------------------------------------------------------------+
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| This source file is subject to version 2.0 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 at through the world-wide-web at |
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| http://www.php.net/license/2_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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| Design: Shane Caraveo <shane@caraveo.com> |
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| Authors: Andi Gutmans <andi@zend.com> |
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| Zeev Suraski <zeev@zend.com> |
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+----------------------------------------------------------------------+
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*/
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#include <ctype.h>
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#include "php.h"
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#include "SAPI.h"
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#ifdef ZTS
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#include "TSRM.h"
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#endif
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#include "rfc1867.h"
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#if WIN32||WINNT
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#define STRCASECMP stricmp
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#else
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#define STRCASECMP strcasecmp
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#endif
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SAPI_POST_READER_FUNC(sapi_read_standard_form_data);
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#define DEFAULT_POST_CONTENT_TYPE "application/x-www-form-urlencoded"
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static sapi_post_content_type_reader supported_post_content_types[] = {
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{ DEFAULT_POST_CONTENT_TYPE, sizeof(DEFAULT_POST_CONTENT_TYPE)-1, sapi_read_standard_form_data },
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#if HAVE_FDFLIB
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{ "application/vnd.fdf", sizeof("application/vnd.fdf")-1, sapi_read_standard_form_data },
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#endif
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{ NULL, 0, NULL }
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};
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static HashTable known_post_content_types;
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SAPI_API void (*sapi_error)(int error_type, const char *message, ...);
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#ifdef ZTS
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SAPI_API int sapi_globals_id;
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#else
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sapi_globals_struct sapi_globals;
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#endif
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/* True globals (no need for thread safety) */
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sapi_module_struct sapi_module;
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SAPI_API void (*sapi_error)(int error_type, const char *message, ...);
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SAPI_API void sapi_startup(sapi_module_struct *sf)
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{
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sapi_module = *sf;
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zend_hash_init(&known_post_content_types, 5, NULL, NULL, 1);
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sapi_register_post_readers(supported_post_content_types);
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#ifdef ZTS
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sapi_globals_id = ts_allocate_id(sizeof(sapi_globals_struct), NULL, NULL);
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#endif
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php_global_startup_internal_extensions();
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}
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SAPI_API void sapi_shutdown(void)
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{
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php_global_shutdown_internal_extensions();
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zend_hash_destroy(&known_post_content_types);
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}
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SAPI_API void sapi_free_header(sapi_header_struct *sapi_header)
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{
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efree(sapi_header->header);
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}
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static void sapi_read_post_data(SLS_D)
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{
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sapi_post_content_type_reader *post_content_type_reader;
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uint content_type_length = strlen(SG(request_info).content_type);
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char *content_type = estrndup(SG(request_info).content_type, content_type_length);
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char *p;
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char oldchar=0;
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void (*post_reader_func)(char *content_type_dup SLS_DC);
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/* dedicated implementation for increased performance:
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* - Make the content type lowercase
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* - Trim descriptive data, stay with the content-type only
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*/
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for (p=content_type; p<content_type+content_type_length; p++) {
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switch (*p) {
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case ';':
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case ',':
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case ' ':
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content_type_length = p-content_type;
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oldchar = *p;
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*p = 0;
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break;
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default:
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*p = tolower(*p);
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break;
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}
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}
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if (zend_hash_find(&known_post_content_types, content_type, content_type_length+1, (void **) &post_content_type_reader)==SUCCESS) {
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post_reader_func = post_content_type_reader->post_reader;
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} else {
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if (!sapi_module.default_post_reader) {
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sapi_module.sapi_error(E_COMPILE_ERROR, "Unsupported content type: '%s'", content_type);
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return;
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}
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post_reader_func = sapi_module.default_post_reader;
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}
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if (oldchar) {
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*(p-1) = oldchar;
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}
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post_reader_func(content_type SLS_CC);
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efree(content_type);
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}
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SAPI_POST_READER_FUNC(sapi_read_standard_form_data)
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{
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int read_bytes, total_read_bytes=0;
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int allocated_bytes=SAPI_POST_BLOCK_SIZE+1;
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SG(request_info).post_data = emalloc(allocated_bytes);
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for (;;) {
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read_bytes = sapi_module.read_post(SG(request_info).post_data+total_read_bytes, SAPI_POST_BLOCK_SIZE SLS_CC);
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if (read_bytes<=0) {
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break;
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}
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total_read_bytes += read_bytes;
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if (read_bytes < SAPI_POST_BLOCK_SIZE) {
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break;
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}
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if (total_read_bytes+SAPI_POST_BLOCK_SIZE >= allocated_bytes) {
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allocated_bytes = total_read_bytes+SAPI_POST_BLOCK_SIZE+1;
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SG(request_info).post_data = erealloc(SG(request_info).post_data, allocated_bytes);
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}
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}
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SG(request_info).post_data[total_read_bytes] = 0; /* terminating NULL */
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SG(request_info).post_data_length = total_read_bytes;
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}
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SAPI_API void sapi_activate(SLS_D)
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{
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zend_llist_init(&SG(sapi_headers).headers, sizeof(sapi_header_struct), (void (*)(void *)) sapi_free_header, 0);
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SG(sapi_headers).send_default_content_type = 1;
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SG(sapi_headers).http_response_code = 200;
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SG(sapi_headers).http_status_line = NULL;
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SG(headers_sent) = 0;
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SG(read_post_bytes) = 0;
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SG(request_info).post_data = NULL;
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if (SG(request_info).request_method && !strcmp(SG(request_info).request_method, "HEAD")) {
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SG(request_info).headers_only = 1;
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} else {
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SG(request_info).headers_only = 0;
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}
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if (SG(server_context)) {
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if (SG(request_info).request_method
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&& !strcmp(SG(request_info).request_method, "POST")) {
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if (!SG(request_info).content_type) {
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sapi_module.sapi_error(E_COMPILE_ERROR, "No content-type in POST request");
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}
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sapi_read_post_data(SLS_C);
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}
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SG(request_info).cookie_data = sapi_module.read_cookies(SLS_C);
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}
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}
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SAPI_API void sapi_deactivate(SLS_D)
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{
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zend_llist_destroy(&SG(sapi_headers).headers);
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if (SG(request_info).post_data) {
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efree(SG(request_info).post_data);
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}
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}
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static int sapi_extract_response_code(const char *header_line)
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{
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int code = 200;
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const char *ptr;
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for (ptr = header_line; *ptr; ptr++) {
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if (*ptr == ' ' && *(ptr + 1) != ' ') {
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code = atoi(ptr + 1);
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break;
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}
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}
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return code;
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}
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/* This function expects a *duplicated* string, that was previously emalloc()'d.
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* Pointers sent to this functions will be automatically freed by the framework.
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*/
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SAPI_API int sapi_add_header(char *header_line, uint header_line_len)
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{
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int retval;
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sapi_header_struct sapi_header;
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char *colon_offset;
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SLS_FETCH();
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if (SG(headers_sent)) {
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sapi_module.sapi_error(E_WARNING, "Cannot add header information - headers already sent");
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efree(header_line);
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return FAILURE;
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}
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sapi_header.header = header_line;
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sapi_header.header_len = header_line_len;
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/* Check the header for a few cases that we have special support for in SAPI */
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if (header_line_len>=5
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&& !memcmp(header_line, "HTTP/", 5)) {
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/* filter out the response code */
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SG(sapi_headers).http_response_code = sapi_extract_response_code(header_line);
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SG(sapi_headers).http_status_line = header_line;
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return SUCCESS;
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} else {
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colon_offset = strchr(header_line, ':');
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if (colon_offset) {
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*colon_offset = 0;
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if (!STRCASECMP(header_line, "Content-Type")) {
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SG(sapi_headers).send_default_content_type = 0;
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} else if (!STRCASECMP(header_line, "Location")) {
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SG(sapi_headers).http_response_code = 302; /* redirect */
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} else if (!STRCASECMP(header_line, "WWW-Authenticate")) { /* HTTP Authentication */
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SG(sapi_headers).http_response_code = 401; /* authentication-required */
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}
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*colon_offset = ':';
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}
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}
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if (sapi_module.header_handler) {
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retval = sapi_module.header_handler(&sapi_header, &SG(sapi_headers) SLS_CC);
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} else {
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retval = SAPI_HEADER_ADD;
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}
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if (retval & SAPI_HEADER_DELETE_ALL) {
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zend_llist_clean(&SG(sapi_headers).headers);
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}
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if (retval & SAPI_HEADER_ADD) {
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zend_llist_add_element(&SG(sapi_headers).headers, (void *) &sapi_header);
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}
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return SUCCESS;
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}
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SAPI_API int sapi_send_headers()
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{
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int retval;
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int ret = FAILURE;
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sapi_header_struct default_header = { SAPI_DEFAULT_CONTENT_TYPE, sizeof(SAPI_DEFAULT_CONTENT_TYPE)-1 };
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SLS_FETCH();
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if (SG(headers_sent)) {
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return SUCCESS;
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}
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if (sapi_module.send_headers) {
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retval = sapi_module.send_headers(&SG(sapi_headers) SLS_CC);
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} else {
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retval = SAPI_HEADER_DO_SEND;
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}
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switch (retval) {
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case SAPI_HEADER_SENT_SUCCESSFULLY:
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SG(headers_sent) = 1;
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ret = SUCCESS;
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break;
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case SAPI_HEADER_DO_SEND:
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if (SG(sapi_headers).http_status_line) {
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sapi_header_struct http_status_line;
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http_status_line.header = SG(sapi_headers).http_status_line;
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http_status_line.header_len = strlen(SG(sapi_headers).http_status_line);
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sapi_module.send_header(&http_status_line, SG(server_context));
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}
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if (SG(sapi_headers).send_default_content_type) {
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sapi_module.send_header(&default_header, SG(server_context));
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}
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zend_llist_apply_with_argument(&SG(sapi_headers).headers, (void (*)(void *, void *)) sapi_module.send_header, SG(server_context));
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sapi_module.send_header(NULL, SG(server_context));
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SG(headers_sent) = 1;
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ret = SUCCESS;
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break;
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case SAPI_HEADER_SEND_FAILED:
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ret = FAILURE;
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break;
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}
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if (SG(sapi_headers).http_status_line) {
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efree(SG(sapi_headers).http_status_line);
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}
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return ret;
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}
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SAPI_API int sapi_register_post_readers(sapi_post_content_type_reader *post_content_type_readers)
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{
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sapi_post_content_type_reader *p=post_content_type_readers;
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while (p->content_type) {
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if (sapi_register_post_reader(p)==FAILURE) {
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return FAILURE;
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}
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p++;
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}
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return SUCCESS;
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}
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SAPI_API int sapi_register_post_reader(sapi_post_content_type_reader *post_content_type_reader)
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{
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return zend_hash_add(&known_post_content_types, post_content_type_reader->content_type, post_content_type_reader->content_type_len+1, (void *) post_content_type_reader, sizeof(sapi_post_content_type_reader), NULL);
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}
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SAPI_API void sapi_unregister_post_reader(sapi_post_content_type_reader *post_content_type_reader)
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{
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zend_hash_del(&known_post_content_types, post_content_type_reader->content_type, post_content_type_reader->content_type_len+1);
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}
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SAPI_API int sapi_register_default_post_reader(void (*default_post_reader)(char *content_type_dup SLS_DC))
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{
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sapi_module.default_post_reader = default_post_reader;
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return SUCCESS;
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}
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