php-src/ext/standard/head.c
Zeev Suraski 972631be71 - Added flush() support to SAPI
- Got rid of the old flush() implemenetation in favour of the new one
- Added implicit_flush() support to the output buffering layer.
@- Added implicit_flush() to control whether flush() should be called
@  implicitly after any output (Zeev)
2000-01-13 17:37:25 +00:00

408 lines
9.9 KiB
C

/*
+----------------------------------------------------------------------+
| PHP version 4.0 |
+----------------------------------------------------------------------+
| Copyright (c) 1997, 1998, 1999, 2000 The PHP Group |
+----------------------------------------------------------------------+
| This source file is subject to version 2.0 of the PHP license, |
| that is bundled with this package in the file LICENSE, and is |
| available at through the world-wide-web at |
| http://www.php.net/license/2_0.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@lerdorf.on.ca> |
+----------------------------------------------------------------------+
*/
/* $Id$ */
#include <stdio.h>
#include "php.h"
#include "ext/standard/php_standard.h"
#include "SAPI.h"
#include "main.h"
#include "head.h"
#include "post.h"
#include "SAPI.h"
#ifdef TM_IN_SYS_TIME
#include <sys/time.h>
#else
#include <time.h>
#endif
#include "php_globals.h"
#include "safe_mode.h"
/* need to figure out some nice way to get rid of these */
#ifndef THREAD_SAFE
static int php_header_printed = 0;
static int php_print_header = 1;
static CookieList *top = NULL;
static char *cont_type = NULL;
static int header_called = 0;
#endif
void php_push_cookie_list(char *, char *, time_t, char *, char *, int);
CookieList *php_pop_cookie_list(void);
PHP_RINIT_FUNCTION(head)
{
php_header_printed = 0;
if (header_called == 0)
php_print_header = 1;
top = NULL;
cont_type = NULL;
return SUCCESS;
}
#if 0
/* Adds header information */
void php4i_add_header_information(char *header_information, uint header_length)
{
char *r;
#if APACHE
char *rr = NULL;
char *temp = NULL;
long myuid = 0L;
char temp2[32];
request_rec *req;
SLS_FETCH();
req = ((request_rec *) SG(server_context));
#endif
if (php_header_printed == 1) {
#if DEBUG
php_error(E_WARNING, "Cannot add more header information - the header was already sent "
"(header information may be added only before any output is generated from the script - "
"check for text or whitespace outside PHP tags, or calls to functions that output text)");
#endif
return; /* too late, already sent */
}
#if APACHE
/*
* Not entirely sure this is the right way to support the header
* command in the Apache module. Comments?
*/
r = strchr(header_information, ':');
if (r) {
*r = '\0';
if (!strcasecmp(header_information, "Content-type")) {
if (*(r + 1) == ' ')
req->content_type = pstrdup(req->pool,r + 2);
else
req->content_type = pstrdup(req->pool,r + 1);
cont_type = (char *) req->content_type;
} else {
if (*(r + 1) == ' ') {
rr = r + 2;
} else {
rr = r + 1;
}
if (PG(safe_mode) && (!strcasecmp(header_information, "WWW-authenticate"))) {
myuid = php_getuid();
sprintf(temp2, "realm=\"%ld ", myuid); /* SAFE */
temp = php_reg_replace("realm=\"", temp2, rr, 1, 0);
if (!strcmp(temp, rr)) {
sprintf(temp2, "realm=%ld", myuid); /* SAFE */
temp = php_reg_replace("realm=", temp2, rr, 1, 0);
if (!strcmp(temp, rr)) {
sprintf(temp2, " realm=%ld", myuid); /* SAFE */
temp = php_reg_replace("$", temp2, rr, 0, 0);
}
}
table_set(req->headers_out, header_information, temp);
} else
table_set(req->headers_out, header_information, rr);
}
if (!strcasecmp(header_information, "location")) {
req->status = REDIRECT;
}
*r = ':';
php_header_printed = 2;
}
if (!strncasecmp(header_information, "http/", 5)) {
if (strlen(header_information) > 9) {
req->status = atoi(&((header_information)[9]));
}
/* Use a pstrdup here to get the memory straight from Apache's per-request pool to
* avoid having our own memory manager complain about this memory not being freed
* because it really shouldn't be freed until the end of the request and it isn't
* easy for us to figure out when we allocated it vs. when something else might have.
*/
req->status_line = pstrdup(req->pool,&((header_information)[9]));
}
#else
r = strchr(header_information, ':');
if (r) {
*r = '\0';
if (!strcasecmp(header_information, "Content-type")) {
if (cont_type) efree(cont_type);
cont_type = estrdup(r + 1);
#if 0 /*WIN32|WINNT / *M$ does us again*/
if (!strcmp(cont_type," text/html")){
*r=':';
PUTS_H(header_information);
PUTS_H("\015\012");
}
#endif
} else {
*r = ':';
#if USE_SAPI
{
char *tempstr=emalloc(strlen(header_information)+2);
sprintf(tempstr,"%s\015\012",tempstr);
sapi_rqst->header(sapi_rqst->scid,tempstr);
efree(tempstr);
}
#else
PUTS_H(header_information);
PUTS_H("\015\012");
#endif
}
} else {
#if USE_SAPI
{
char *tempstr=emalloc(strlen(header_information)+2);
sprintf(tempstr,"%s\015\012",tempstr);
sapi_rqst->header(sapi_rqst->scid,tempstr);
efree(tempstr);
}
#else
PUTS_H(header_information);
PUTS_H("\015\012");
#endif
}
#endif
}
#else
void php4i_add_header_information(char *header_information, uint header_length)
{
sapi_add_header(header_information, header_length);
}
#endif
/* Implementation of the language Header() function */
PHP_FUNCTION(Header)
{
pval **arg1;
if (zend_get_parameters_ex(1, &arg1) == FAILURE) {
WRONG_PARAM_COUNT;
}
convert_to_string_ex(arg1);
php4i_add_header_information((*arg1)->value.str.val,(*arg1)->value.str.len);
(*arg1)->type = IS_LONG; /* change arg1's type so that it doesn't get freed */
(*arg1)->value.lval = 0;
}
PHPAPI int php_header()
{
SLS_FETCH();
if (sapi_send_headers()==FAILURE || SG(request_info).headers_only) {
return 0; /* don't allow output */
} else {
return 1; /* allow output */
}
}
void php_push_cookie_list(char *name, char *value, time_t expires, char *path, char *domain, int secure)
{
CookieList *new;
new = emalloc(sizeof(CookieList));
new->next = top;
new->name = name;
new->value = value;
new->expires = expires;
new->path = path;
new->domain = domain;
new->secure = secure;
top = new;
}
CookieList *php_pop_cookie_list(void)
{
CookieList *ret;
ret = top;
if (top)
top = top->next;
return (ret);
}
/* php_set_cookie(name,value,expires,path,domain,secure) */
PHP_FUNCTION(setcookie)
{
char *cookie;
int len=sizeof("Set-Cookie: ");
time_t t;
char *r, *dt;
char *name = NULL, *value = NULL, *path = NULL, *domain = NULL;
time_t expires = 0;
int secure = 0;
pval **arg[6];
int arg_count;
arg_count = ARG_COUNT(ht);
if (arg_count < 1 || arg_count > 6 || zend_get_parameters_array_ex(arg_count, arg) == FAILURE) {
WRONG_PARAM_COUNT;
}
if (php_header_printed == 1) {
php_error(E_WARNING, "Oops, php_set_cookie called after header has been sent\n");
return;
}
switch (arg_count) {
case 6:
convert_to_boolean_ex(arg[5]);
secure = (*arg[5])->value.lval;
/* break missing intentionally */
case 5:
convert_to_string_ex(arg[4]);
domain = estrndup((*arg[4])->value.str.val,(*arg[4])->value.str.len);
/* break missing intentionally */
case 4:
convert_to_string_ex(arg[3]);
path = estrndup((*arg[3])->value.str.val,(*arg[3])->value.str.len);
/* break missing intentionally */
case 3:
convert_to_long_ex(arg[2]);
expires = (*arg[2])->value.lval;
/* break missing intentionally */
case 2:
convert_to_string_ex(arg[1]);
value = estrndup((*arg[1])->value.str.val,(*arg[1])->value.str.len);
/* break missing intentionally */
case 1:
convert_to_string_ex(arg[0]);
name = estrndup((*arg[0])->value.str.val,(*arg[0])->value.str.len);
break;
}
#if 0
php_push_cookie_list(name, value, expires, path, domain, secure);
#else
if (name) {
len += strlen(name);
}
if (value) {
len += strlen(value);
}
if (path) {
len += strlen(path);
}
if (domain) {
len += strlen(domain);
}
cookie = emalloc(len + 100);
if (!value || (value && !*value)) {
/*
* MSIE doesn't delete a cookie when you set it to a null value
* so in order to force cookies to be deleted, even on MSIE, we
* pick an expiry date 1 year and 1 second in the past
*/
sprintf(cookie, "Set-Cookie: %s=deleted", name);
strcat(cookie, "; expires=");
t = time(NULL) - 31536001;
dt = php_std_date(t);
strcat(cookie, dt);
efree(dt);
} else {
/* FIXME: XXX: this is not binary data safe */
r = php_url_encode(value, strlen (value));
sprintf(cookie, "Set-Cookie: %s=%s", name, value ? r : "");
if (r) efree(r);
if (value) efree(value);
value=NULL;
if (name) efree(name);
name=NULL;
if (expires > 0) {
strcat(cookie, "; expires=");
dt = php_std_date(expires);
strcat(cookie, dt);
efree(dt);
}
}
if (path && strlen(path)) {
strcat(cookie, "; path=");
strcat(cookie, path);
efree(path);
path=NULL;
}
if (domain && strlen(domain)) {
strcat(cookie, "; domain=");
strcat(cookie, domain);
efree(domain);
domain=NULL;
}
if (secure) {
strcat(cookie, "; secure");
}
if (sapi_add_header(cookie, strlen(cookie))==SUCCESS) {
RETVAL_TRUE;
} else {
RETVAL_FALSE;
}
if (domain) {
efree(domain);
}
if (path) {
efree(path);
}
if (name) {
efree(name);
}
if (value) {
efree(value);
}
#endif
}
int php_headers_unsent(void)
{
if (php_header_printed!=1 || !php_print_header) {
return 1;
} else {
return 0;
}
}
PHP_FUNCTION(headers_sent)
{
SLS_FETCH();
if (SG(headers_sent)) {
RETURN_TRUE;
} else {
RETURN_FALSE;
}
}
function_entry php_header_functions[] = {
{NULL, NULL, NULL}
};
zend_module_entry php_header_module_entry = {
"PHP_head", php_header_functions, NULL, NULL, PHP_RINIT(head), NULL, NULL, STANDARD_MODULE_PROPERTIES
};
/*
* Local variables:
* tab-width: 4
* c-basic-offset: 4
* End:
*/