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php-src/sapi/cgi/cgi_main.c
Shane Caraveo 1a4c82e014 fix bug 21261 
putenv on some platforms requires we provide the memory
    cleanup env parsing logic
fix bug 21367
    missed optargs in a previous patch
2003-01-25 22:01:53 +00:00

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/*
+----------------------------------------------------------------------+
| PHP Version 4 |
+----------------------------------------------------------------------+
| Copyright (c) 1997-2003 The PHP Group |
+----------------------------------------------------------------------+
| This source file is subject to version 2.02 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_02.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> |
| Stig Bakken <ssb@fast.no> |
| Zeev Suraski <zeev@zend.com> |
| FastCGI: Ben Mansell <php@slimyhorror.com> |
| Shane Caraveo <shane@caraveo.com> |
+----------------------------------------------------------------------+
*/
#include "php.h"
#include "php_globals.h"
#include "php_variables.h"
#include "zend_modules.h"
#include "SAPI.h"
#include <stdio.h>
#include "php.h"
#ifdef PHP_WIN32
#include "win32/time.h"
#include "win32/signal.h"
#include <process.h>
#endif
#if HAVE_SYS_TIME_H
#include <sys/time.h>
#endif
#if HAVE_UNISTD_H
#include <unistd.h>
#endif
#if HAVE_SIGNAL_H
#include <signal.h>
#endif
#if HAVE_SETLOCALE
#include <locale.h>
#endif
#include "zend.h"
#include "zend_extensions.h"
#include "php_ini.h"
#include "php_globals.h"
#include "php_main.h"
#include "fopen_wrappers.h"
#include "ext/standard/php_standard.h"
#ifdef PHP_WIN32
#include <io.h>
#include <fcntl.h>
#include "win32/php_registry.h"
#endif
#if HAVE_SIGNAL_H
#include <signal.h>
#endif
#ifdef __riscos__
#include <unixlib/local.h>
#endif
#include "zend_compile.h"
#include "zend_execute.h"
#include "zend_highlight.h"
#include "zend_indent.h"
#include "php_getopt.h"
#if PHP_FASTCGI
#include "fcgi_config.h"
#include "fcgiapp.h"
/* don't want to include fcgios.h, causes conflicts */
#ifdef PHP_WIN32
extern int OS_SetImpersonate(void);
#else
/* XXX this will need to change later when threaded fastcgi is
implemented. shane */
struct sigaction act, old_term, old_quit, old_int;
#endif
static void (*php_php_import_environment_variables)(zval *array_ptr TSRMLS_DC);
#ifndef PHP_WIN32
/* these globals used for forking children on unix systems */
/**
* Number of child processes that will get created to service requests
*/
static int children = 0;
/**
* Set to non-zero if we are the parent process
*/
static int parent = 1;
/**
* Process group
*/
static pid_t pgroup;
#endif
#endif
#define PHP_MODE_STANDARD 1
#define PHP_MODE_HIGHLIGHT 2
#define PHP_MODE_INDENT 3
#define PHP_MODE_LINT 4
#define PHP_MODE_STRIP 5
extern char *ap_php_optarg;
extern int ap_php_optind;
#if ENABLE_PATHINFO_CHECK
/* true global. this is retreived once only, even for fastcgi */
long fix_pathinfo=1;
#endif
#ifdef PHP_WIN32
#define TRANSLATE_SLASHES(path) \
{ \
char *tmp = path; \
while (*tmp) { \
if (*tmp == '\\') *tmp = '/'; \
tmp++; \
} \
}
#else
#define TRANSLATE_SLASHES(path)
#endif
#define OPTSTRING "abCc:d:ef:g:hilmnqsw?vz:"
static int print_module_info(zend_module_entry *module, void *arg TSRMLS_DC)
{
php_printf("%s\n", module->name);
return 0;
}
static int module_name_cmp(const void *a, const void *b TSRMLS_DC)
{
Bucket *f = *((Bucket **) a);
Bucket *s = *((Bucket **) b);
return strcmp(((zend_module_entry *)f->pData)->name,
((zend_module_entry *)s->pData)->name);
}
static void print_modules(TSRMLS_D)
{
HashTable sorted_registry;
zend_module_entry tmp;
zend_hash_init(&sorted_registry, 50, NULL, NULL, 1);
zend_hash_copy(&sorted_registry, &module_registry, NULL, &tmp, sizeof(zend_module_entry));
zend_hash_sort(&sorted_registry, zend_qsort, module_name_cmp, 0 TSRMLS_CC);
zend_hash_apply_with_argument(&sorted_registry, (apply_func_arg_t) print_module_info, NULL TSRMLS_CC);
zend_hash_destroy(&sorted_registry);
}
static int print_extension_info(zend_extension *ext, void *arg TSRMLS_DC)
{
php_printf("%s\n", ext->name);
return 0;
}
static int extension_name_cmp(const zend_llist_element **f,
const zend_llist_element **s TSRMLS_DC)
{
return strcmp(((zend_extension *)(*f)->data)->name,
((zend_extension *)(*s)->data)->name);
}
static void print_extensions(TSRMLS_D)
{
zend_llist sorted_exts;
zend_llist_copy(&sorted_exts, &zend_extensions);
zend_llist_sort(&sorted_exts, extension_name_cmp TSRMLS_CC);
zend_llist_apply_with_argument(&sorted_exts, (llist_apply_with_arg_func_t) print_extension_info, NULL TSRMLS_CC);
zend_llist_destroy(&sorted_exts);
}
#ifndef STDOUT_FILENO
#define STDOUT_FILENO 1
#endif
static inline size_t sapi_cgibin_single_write(const char *str, uint str_length TSRMLS_DC)
{
#ifdef PHP_WRITE_STDOUT
long ret;
#else
size_t ret;
#endif
#if PHP_FASTCGI
if (!FCGX_IsCGI()) {
FCGX_Request *request = (FCGX_Request *)SG(server_context);
long ret = FCGX_PutStr( str, str_length, request->out );
if (ret <= 0) {
return 0;
}
return ret;
}
#endif
#ifdef PHP_WRITE_STDOUT
ret = write(STDOUT_FILENO, str, str_length);
if (ret <= 0) return 0;
return ret;
#else
ret = fwrite(str, 1, MIN(str_length, 16384), stdout);
return ret;
#endif
}
static int sapi_cgibin_ub_write(const char *str, uint str_length TSRMLS_DC)
{
const char *ptr = str;
uint remaining = str_length;
size_t ret;
while (remaining > 0)
{
ret = sapi_cgibin_single_write(ptr, remaining TSRMLS_CC);
if (!ret) {
php_handle_aborted_connection();
}
ptr += ret;
remaining -= ret;
}
return str_length;
}
static void sapi_cgibin_flush(void *server_context)
{
#if PHP_FASTCGI
if (!FCGX_IsCGI()) {
FCGX_Request *request = (FCGX_Request *)server_context;
if(!request || FCGX_FFlush( request->out ) == -1 ) {
php_handle_aborted_connection();
}
} else
#endif
if (fflush(stdout)==EOF) {
php_handle_aborted_connection();
}
}
#define SAPI_CGI_MAX_HEADER_LENGTH 1024
static int sapi_cgi_send_headers(sapi_headers_struct *sapi_headers TSRMLS_DC)
{
char buf[SAPI_CGI_MAX_HEADER_LENGTH];
sapi_header_struct *h;
zend_llist_position pos;
long rfc2616_headers = 0;
if(SG(request_info).no_headers == 1) {
return SAPI_HEADER_SENT_SUCCESSFULLY;
}
/* Check wheater to send RFC2616 style headers compatible with
* PHP versions 4.2.3 and earlier compatible with web servers
* such as IIS. Default is informal CGI RFC header compatible
* with Apache.
*/
if (cfg_get_long("cgi.rfc2616_headers", &rfc2616_headers) == FAILURE) {
rfc2616_headers = 0;
}
if (SG(sapi_headers).http_response_code != 200) {
int len;
if (rfc2616_headers) {
len = snprintf(buf, SAPI_CGI_MAX_HEADER_LENGTH,
"%s\r\n", SG(sapi_headers).http_status_line);
if (len > SAPI_CGI_MAX_HEADER_LENGTH) {
len = SAPI_CGI_MAX_HEADER_LENGTH;
}
} else {
len = sprintf(buf, "Status: %d\r\n", SG(sapi_headers).http_response_code);
}
PHPWRITE_H(buf, len);
}
if (SG(sapi_headers).send_default_content_type) {
char *hd;
hd = sapi_get_default_content_type(TSRMLS_C);
PHPWRITE_H("Content-type: ", sizeof("Content-type: ")-1);
PHPWRITE_H(hd, strlen(hd));
PHPWRITE_H("\r\n", 2);
efree(hd);
}
h = zend_llist_get_first_ex(&sapi_headers->headers, &pos);
while (h) {
PHPWRITE_H(h->header, h->header_len);
PHPWRITE_H("\r\n", 2);
h = zend_llist_get_next_ex(&sapi_headers->headers, &pos);
}
PHPWRITE_H("\r\n", 2);
return SAPI_HEADER_SENT_SUCCESSFULLY;
}
static int sapi_cgi_read_post(char *buffer, uint count_bytes TSRMLS_DC)
{
uint read_bytes=0, tmp_read_bytes;
#if PHP_FASTCGI
char *pos = buffer;
#endif
count_bytes = MIN(count_bytes, (uint)SG(request_info).content_length-SG(read_post_bytes));
while (read_bytes < count_bytes) {
#if PHP_FASTCGI
if (!FCGX_IsCGI()) {
FCGX_Request *request = (FCGX_Request *)SG(server_context);
tmp_read_bytes = FCGX_GetStr( pos, count_bytes-read_bytes, request->in );
pos += tmp_read_bytes;
} else
#endif
tmp_read_bytes = read(0, buffer+read_bytes, count_bytes-read_bytes);
if (tmp_read_bytes<=0) {
break;
}
read_bytes += tmp_read_bytes;
}
return read_bytes;
}
static char *sapi_cgibin_getenv(char *name, size_t name_len TSRMLS_DC)
{
#if PHP_FASTCGI
/* when php is started by mod_fastcgi, no regular environment
is provided to PHP. It is always sent to PHP at the start
of a request. So we have to do our own lookup to get env
vars. This could probably be faster somehow. */
if (!FCGX_IsCGI()) {
FCGX_Request *request = (FCGX_Request *)SG(server_context);
return FCGX_GetParam(name,request->envp);
}
#endif
/* if cgi, or fastcgi and not found in fcgi env
check the regular environment */
return getenv(name);
}
static char *_sapi_cgibin_putenv(char *name, char *value TSRMLS_DC)
{
int len=0;
char *buf = NULL;
if (!name) return NULL;
len = strlen(name) + (value?strlen(value):0) + sizeof("=") + 2;
buf = (char *)emalloc(len);
if (value) {
snprintf(buf,len-1,"%s=%s", name, value);
} else {
snprintf(buf,len-1,"%s=", name);
}
#if PHP_FASTCGI
/* when php is started by mod_fastcgi, no regular environment
is provided to PHP. It is always sent to PHP at the start
of a request. So we have to do our own lookup to get env
vars. This could probably be faster somehow. */
if (!FCGX_IsCGI()) {
FCGX_Request *request = (FCGX_Request *)SG(server_context);
FCGX_PutEnv(request,buf);
efree(buf);
return sapi_cgibin_getenv(name,0 TSRMLS_CC);
}
#endif
/* if cgi, or fastcgi and not found in fcgi env
check the regular environment
this leaks, but it's only cgi anyway, we'll fix
it for 5.0
*/
if (value)
putenv(strdup(buf));
else
putenv(buf);
efree(buf);
return getenv(name);
}
static char *sapi_cgi_read_cookies(TSRMLS_D)
{
return sapi_cgibin_getenv((char *)"HTTP_COOKIE",0 TSRMLS_CC);
}
#if PHP_FASTCGI
void cgi_php_import_environment_variables(zval *array_ptr TSRMLS_DC)
{
if (!FCGX_IsCGI()) {
FCGX_Request *request = (FCGX_Request *)SG(server_context);
char **env, *p, *t;
for (env = request->envp; env != NULL && *env != NULL; env++) {
p = strchr(*env, '=');
if (!p) { /* malformed entry? */
continue;
}
t = estrndup(*env, p - *env);
php_register_variable(t, p+1, array_ptr TSRMLS_CC);
efree(t);
}
}
/* call php's original import as a catch-all */
php_php_import_environment_variables(array_ptr TSRMLS_CC);
}
#endif
static void sapi_cgi_register_variables(zval *track_vars_array TSRMLS_DC)
{
/* In CGI mode, we consider the environment to be a part of the server
* variables
*/
php_import_environment_variables(track_vars_array TSRMLS_CC);
/* Build the special-case PHP_SELF variable for the CGI version */
php_register_variable("PHP_SELF", (SG(request_info).request_uri ? SG(request_info).request_uri:""), track_vars_array TSRMLS_CC);
}
static void sapi_cgi_log_message(char *message)
{
if (php_header()) {
fprintf(stderr, "%s", message);
fprintf(stderr, "\n");
}
}
static int sapi_cgi_deactivate(TSRMLS_D)
{
fflush(stdout);
if(SG(request_info).argv0) {
free(SG(request_info).argv0);
SG(request_info).argv0 = NULL;
}
return SUCCESS;
}
static int php_cgi_startup(sapi_module_struct *sapi_module)
{
if (php_module_startup(sapi_module, NULL, 0)==FAILURE) {
return FAILURE;
}
return SUCCESS;
}
/* {{{ sapi_module_struct cgi_sapi_module
*/
static sapi_module_struct cgi_sapi_module = {
#if PHP_FASTCGI
"cgi-fcgi", /* name */
"CGI/FastCGI", /* pretty name */
#else
"cgi", /* name */
"CGI", /* pretty name */
#endif
php_cgi_startup, /* startup */
php_module_shutdown_wrapper, /* shutdown */
NULL, /* activate */
sapi_cgi_deactivate, /* deactivate */
sapi_cgibin_ub_write, /* unbuffered write */
sapi_cgibin_flush, /* flush */
NULL, /* get uid */
sapi_cgibin_getenv, /* getenv */
php_error, /* error handler */
NULL, /* header handler */
sapi_cgi_send_headers, /* send headers handler */
NULL, /* send header handler */
sapi_cgi_read_post, /* read POST data */
sapi_cgi_read_cookies, /* read Cookies */
sapi_cgi_register_variables, /* register server variables */
sapi_cgi_log_message, /* Log message */
STANDARD_SAPI_MODULE_PROPERTIES
};
/* }}} */
/* {{{ php_cgi_usage
*/
static void php_cgi_usage(char *argv0)
{
char *prog;
prog = strrchr(argv0, '/');
if (prog) {
prog++;
} else {
prog = "php";
}
php_printf("Usage: %s [-q] [-h] [-s [-v] [-i] [-f <file>] \n"
" %s <file> [args...]\n"
" -a Run interactively\n"
#if PHP_FASTCGI
" -b <address:port>|<port> Bind Path for external FASTCGI Server mode\n"
#endif
" -C Do not chdir to the script's directory\n"
" -c <path>|<file> Look for php.ini file in this directory\n"
" -n No php.ini file will be used\n"
" -d foo[=bar] Define INI entry foo with value 'bar'\n"
" -e Generate extended information for debugger/profiler\n"
" -f <file> Parse <file>. Implies `-q'\n"
" -h This help\n"
" -i PHP information\n"
" -l Syntax check only (lint)\n"
" -m Show compiled in modules\n"
" -q Quiet-mode. Suppress HTTP Header output.\n"
" -s Display colour syntax highlighted source.\n"
" -v Version number\n"
" -w Display source with stripped comments and whitespace.\n"
" -z <file> Load Zend extension <file>.\n",
prog, prog);
}
/* }}} */
/* {{{ init_request_info
initializes request_info structure
specificly in this section we handle proper translations
for:
PATH_INFO
derived from the portion of the URI path following
the script name but preceding any query data
may be empty
PATH_TRANSLATED
derived by taking any path-info component of the
request URI and performing any virtual-to-physical
translation appropriate to map it onto the server's
document repository structure
empty if PATH_INFO is empty
The env var PATH_TRANSLATED **IS DIFFERENT** than the
request_info.path_translated variable, the latter should
match SCRIPT_FILENAME instead.
SCRIPT_NAME
set to a URL path that could identify the CGI script
rather than the interpreter. PHP_SELF is set to this.
REQUEST_URI
uri section following the domain:port part of a URI
SCRIPT_FILENAME
The virtual-to-physical translation of SCRIPT_NAME (as per
PATH_TRANSLATED)
These settings are documented at
http://cgi-spec.golux.com/
Based on the following URL request:
http://localhost/info.php/test?a=b
should produce, which btw is the same as if
we were running under mod_cgi on apache (ie. not
using ScriptAlias directives):
PATH_INFO=/test
PATH_TRANSLATED=/docroot/test
SCRIPT_NAME=/info.php
REQUEST_URI=/info.php/test?a=b
SCRIPT_FILENAME=/docroot/info.php
QUERY_STRING=a=b
but what we get is (cgi/mod_fastcgi under apache):
PATH_INFO=/info.php/test
PATH_TRANSLATED=/docroot/info.php/test
SCRIPT_NAME=/php/php-cgi (from the Action setting I suppose)
REQUEST_URI=/info.php/test?a=b
SCRIPT_FILENAME=/path/to/php/bin/php-cgi (Action setting translated)
QUERY_STRING=a=b
Comments in the code below refer to using the above URL in a request
*/
static void init_request_info(TSRMLS_D)
{
char *env_script_filename = sapi_cgibin_getenv("SCRIPT_FILENAME",0 TSRMLS_CC);
char *env_path_translated = sapi_cgibin_getenv("PATH_TRANSLATED",0 TSRMLS_CC);
char *script_path_translated = env_script_filename;
/* some broken servers do not have script_filename or argv0
an example, IIS configured in some ways. then they do more
broken stuff and set path_translated to the cgi script location */
if (!script_path_translated && env_path_translated)
script_path_translated = env_path_translated;
/* initialize the defaults */
SG(request_info).path_translated = NULL;
SG(request_info).request_method = NULL;
SG(request_info).query_string = NULL;
SG(request_info).request_uri = NULL;
SG(request_info).content_type = NULL;
SG(request_info).content_length = 0;
SG(sapi_headers).http_response_code = 200;
/* script_path_translated being set is a good indication that
we are running in a cgi environment, since it is always
null otherwise. otherwise, the filename
of the script will be retreived later via argc/argv */
if (script_path_translated) {
const char *auth;
char *content_length = sapi_cgibin_getenv("CONTENT_LENGTH",0 TSRMLS_CC);
char *content_type = sapi_cgibin_getenv("CONTENT_TYPE",0 TSRMLS_CC);
#if ENABLE_PATHINFO_CHECK
struct stat st;
char *env_path_info = sapi_cgibin_getenv("PATH_INFO",0 TSRMLS_CC);
char *env_script_name = sapi_cgibin_getenv("SCRIPT_NAME",0 TSRMLS_CC);
char *env_redirect_url = sapi_cgibin_getenv("REDIRECT_URL",0 TSRMLS_CC);
char *env_document_root = sapi_cgibin_getenv("DOCUMENT_ROOT",0 TSRMLS_CC);
if (fix_pathinfo) {
/* save the originals first for anything we change later */
if (env_path_translated)
_sapi_cgibin_putenv("ORIG_PATH_TRANSLATED",env_path_translated TSRMLS_CC);
if (env_path_info)
_sapi_cgibin_putenv("ORIG_PATH_INFO",env_path_info TSRMLS_CC);
if (env_script_name)
_sapi_cgibin_putenv("ORIG_SCRIPT_NAME",env_script_name TSRMLS_CC);
if (env_script_filename)
_sapi_cgibin_putenv("ORIG_SCRIPT_FILENAME",env_script_filename TSRMLS_CC);
if (!env_document_root) {
/* IIS version of DOCUMENT_ROOT, not avail in cgi, but is in fastcgi */
env_document_root = sapi_cgibin_getenv("APPL_PHYSICAL_PATH",0 TSRMLS_CC);
/* ini version of document root */
if (!env_document_root)
env_document_root = PG(doc_root);
/* set the document root, this makes a more
consistent env for php scripts */
if (env_document_root) {
env_document_root = _sapi_cgibin_putenv("DOCUMENT_ROOT",env_document_root TSRMLS_CC);
/* fix docroot */
TRANSLATE_SLASHES(env_document_root);
}
}
if (env_redirect_url) {
/*
pretty much apache specific. If we have a redirect_url
then our script_filename and script_name point to the
php executable
*/
script_path_translated = env_path_translated;
/* we correct SCRIPT_NAME now in case we don't have PATH_INFO */
env_script_name = _sapi_cgibin_putenv("SCRIPT_NAME",env_redirect_url TSRMLS_CC);
}
#ifdef __riscos__
/* Convert path to unix format*/
__riscosify_control|=__RISCOSIFY_DONT_CHECK_DIR;
script_path_translated=__unixify(script_path_translated,0,NULL,1,0);
#endif
/*
* if the file doesn't exist, try to extract PATH_INFO out
* of it by stat'ing back through the '/'
* this fixes url's like /info.php/test
*/
if (stat( script_path_translated, &st ) == -1 ) {
char *pt = estrdup(script_path_translated);
int len = strlen(pt);
char *ptr;
while( (ptr = strrchr(pt,'/')) || (ptr = strrchr(pt,'\\')) ) {
*ptr = 0;
if ( stat(pt, &st) == 0 && S_ISREG(st.st_mode) ) {
/*
* okay, we found the base script!
* work out how many chars we had to strip off;
* then we can modify PATH_INFO
* accordingly
*
* we now have the makings of
* PATH_INFO=/test
* SCRIPT_FILENAME=/docroot/info.php
*
* we now need to figure out what docroot is.
* if DOCUMENT_ROOT is set, this is easy, otherwise,
* we have to play the game of hide and seek to figure
* out what SCRIPT_NAME should be
*/
int slen = len - strlen(pt);
int pilen = strlen( env_path_info );
char *path_info = env_path_info + pilen - slen;
env_path_info = _sapi_cgibin_putenv("PATH_INFO",path_info TSRMLS_CC);
script_path_translated = _sapi_cgibin_putenv("SCRIPT_FILENAME",pt TSRMLS_CC);
TRANSLATE_SLASHES(pt);
/* figure out docroot
SCRIPT_FILENAME minus SCRIPT_NAME
*/
if (env_document_root) {
int l = strlen(env_document_root);
int path_translated_len = 0;
char *path_translated = NULL;
if (env_document_root[l-1]=='/') --l;
/* we have docroot, so we should have:
* DOCUMENT_ROOT=/docroot
* SCRIPT_FILENAME=/docroot/info.php
*
* SCRIPT_NAME is the portion of the path beyond docroot
*/
env_script_name = _sapi_cgibin_putenv("SCRIPT_NAME",pt+l TSRMLS_CC);
/*
* PATH_TRANSATED = DOCUMENT_ROOT + PATH_INFO
*/
path_translated_len = l + strlen(env_path_info) + 2;
path_translated = (char *)emalloc(path_translated_len);
*path_translated = 0;
strncat(path_translated,env_document_root,l);
strcat(path_translated,env_path_info);
env_path_translated = _sapi_cgibin_putenv("PATH_TRANSLATED",path_translated TSRMLS_CC);
efree(path_translated);
} else if (env_script_name &&
strstr(pt,env_script_name)) {
/*
* PATH_TRANSATED = PATH_TRANSATED - SCRIPT_NAME + PATH_INFO
*/
int ptlen = strlen(pt)-strlen(env_script_name);
int path_translated_len = ptlen + strlen(env_path_info) + 2;
char *path_translated = NULL;
path_translated = (char *)emalloc(path_translated_len);
*path_translated = 0;
strncat(path_translated,pt,ptlen);
strcat(path_translated,env_path_info);
env_path_translated = _sapi_cgibin_putenv("PATH_TRANSLATED",path_translated TSRMLS_CC);
efree(path_translated);
}
break;
}
}
if (!ptr) {
/*
* if we stripped out all the '/' and still didn't find
* a valid path... we will fail, badly. of course we would
* have failed anyway... we output 'no input file' now.
*/
script_path_translated = _sapi_cgibin_putenv("SCRIPT_FILENAME",NULL TSRMLS_CC);
SG(sapi_headers).http_response_code = 404;
}
if (pt) efree(pt);
} else {
/* make sure path_info/translated are empty */
script_path_translated = _sapi_cgibin_putenv("SCRIPT_FILENAME",script_path_translated TSRMLS_CC);
_sapi_cgibin_putenv("PATH_INFO",NULL TSRMLS_CC);
_sapi_cgibin_putenv("PATH_TRANSLATED",NULL TSRMLS_CC);
}
}
#endif
SG(request_info).request_method = sapi_cgibin_getenv("REQUEST_METHOD",0 TSRMLS_CC);
SG(request_info).query_string = sapi_cgibin_getenv("QUERY_STRING",0 TSRMLS_CC);
SG(request_info).request_uri = sapi_cgibin_getenv("SCRIPT_NAME",0 TSRMLS_CC);
if (script_path_translated)
SG(request_info).path_translated = estrdup(script_path_translated);
SG(request_info).content_type = (content_type ? content_type : "" );
SG(request_info).content_length = (content_length?atoi(content_length):0);
/* The CGI RFC allows servers to pass on unvalidated Authorization data */
auth = sapi_cgibin_getenv("HTTP_AUTHORIZATION",0 TSRMLS_CC);
php_handle_auth_data(auth TSRMLS_CC);
}
}
/* }}} */
static void define_command_line_ini_entry(char *arg)
{
char *name, *value;
name = arg;
value = strchr(arg, '=');
if (value) {
*value = 0;
value++;
} else {
value = "1";
}
zend_alter_ini_entry(name, strlen(name)+1, value, strlen(value), PHP_INI_SYSTEM, PHP_INI_STAGE_ACTIVATE);
}
static void php_register_command_line_global_vars(char **arg TSRMLS_DC)
{
char *var, *val;
var = *arg;
val = strchr(var, '=');
if (!val) {
printf("No value specified for variable '%s'\n", var);
} else {
*val++ = '\0';
php_register_variable(var, val, NULL TSRMLS_CC);
}
efree(*arg);
}
#if PHP_FASTCGI
/**
* Clean up child processes upon exit
*/
void fastcgi_cleanup(int signal)
{
#ifdef DEBUG_FASTCGI
fprintf( stderr, "FastCGI shutdown, pid %d\n", getpid() );
#endif
#ifndef PHP_WIN32
sigaction( SIGTERM, &old_term, 0 );
/* Kill all the processes in our process group */
kill( -pgroup, SIGTERM );
#endif
/* We should exit at this point, but MacOSX doesn't seem to */
exit( 0 );
}
#endif
/* {{{ main
*/
int main(int argc, char *argv[])
{
int exit_status = SUCCESS;
int cgi = 0, c, i, len;
zend_file_handle file_handle;
int retval = FAILURE;
char *s;
/* temporary locals */
int behavior=PHP_MODE_STANDARD;
int no_headers=0;
int orig_optind=ap_php_optind;
char *orig_optarg=ap_php_optarg;
char *argv0=NULL;
char *script_file=NULL;
zend_llist global_vars;
int interactive=0;
#if FORCE_CGI_REDIRECT
int force_redirect = 1;
char *redirect_status_env = NULL;
#endif
/* end of temporary locals */
#ifdef ZTS
zend_compiler_globals *compiler_globals;
zend_executor_globals *executor_globals;
php_core_globals *core_globals;
sapi_globals_struct *sapi_globals;
void ***tsrm_ls;
#endif
#if PHP_FASTCGI
int max_requests = 500;
int requests = 0;
int fastcgi = !FCGX_IsCGI();
char *bindpath = NULL;
int fcgi_fd = 0;
FCGX_Request request;
#ifdef PHP_WIN32
int impersonate = 0;
#else
int status = 0;
#endif
#endif /* PHP_FASTCGI */
#ifdef HAVE_SIGNAL_H
#if defined(SIGPIPE) && defined(SIG_IGN)
signal(SIGPIPE, SIG_IGN); /* ignore SIGPIPE in standalone mode so
that sockets created via fsockopen()
don't kill PHP if the remote site
closes it. in apache|apxs mode apache
does that for us! thies@thieso.net
20000419 */
#endif
#endif
#ifdef ZTS
tsrm_startup(1, 1, 0, NULL);
#endif
sapi_startup(&cgi_sapi_module);
#ifdef PHP_WIN32
_fmode = _O_BINARY; /*sets default for file streams to binary */
setmode(_fileno(stdin), O_BINARY); /* make the stdio mode be binary */
setmode(_fileno(stdout), O_BINARY); /* make the stdio mode be binary */
setmode(_fileno(stderr), O_BINARY); /* make the stdio mode be binary */
#endif
#if PHP_FASTCGI
if (!fastcgi) {
#endif
/* Make sure we detect we are a cgi - a bit redundancy here,
but the default case is that we have to check only the first one. */
if (getenv("SERVER_SOFTWARE")
|| getenv("SERVER_NAME")
|| getenv("GATEWAY_INTERFACE")
|| getenv("REQUEST_METHOD")) {
cgi = 1;
if (argc > 1) {
argv0 = strdup(argv[1]);
} else {
argv0 = NULL;
}
}
#if PHP_FASTCGI
}
#endif
if (!cgi
#if PHP_FASTCGI
/* allow ini override for fastcgi */
#endif
) {
while ((c=ap_php_getopt(argc, argv, OPTSTRING))!=-1) {
switch (c) {
case 'c':
cgi_sapi_module.php_ini_path_override = strdup(ap_php_optarg);
break;
case 'n':
cgi_sapi_module.php_ini_ignore = 1;
break;
#if PHP_FASTCGI
/* if we're started on command line, check to see if
we are being started as an 'external' fastcgi
server by accepting a bindpath parameter. */
case 'b':
if (!fastcgi) bindpath= strdup(ap_php_optarg);
break;
#endif
}
}
ap_php_optind = orig_optind;
ap_php_optarg = orig_optarg;
}
#ifdef ZTS
compiler_globals = ts_resource(compiler_globals_id);
executor_globals = ts_resource(executor_globals_id);
core_globals = ts_resource(core_globals_id);
sapi_globals = ts_resource(sapi_globals_id);
tsrm_ls = ts_resource(0);
#endif
cgi_sapi_module.executable_location = argv[0];
/* startup after we get the above ini override se we get things right */
if (php_module_startup(&cgi_sapi_module, NULL, 0)==FAILURE) {
#ifdef ZTS
tsrm_shutdown();
#endif
return FAILURE;
}
#if FORCE_CGI_REDIRECT
/* check force_cgi after startup, so we have proper output */
if (cfg_get_long("cgi.force_redirect", &force_redirect) == FAILURE) {
force_redirect = 1;
}
if (cgi && force_redirect) {
if (cfg_get_string("cgi.redirect_status_env", &redirect_status_env) == FAILURE) {
redirect_status_env = NULL;
}
/* Apache will generate REDIRECT_STATUS,
* Netscape and redirect.so will generate HTTP_REDIRECT_STATUS.
* redirect.so and installation instructions available from
* http://www.koehntopp.de/php.
* -- kk@netuse.de
*/
if (!getenv("REDIRECT_STATUS")
&& !getenv ("HTTP_REDIRECT_STATUS")
/* this is to allow a different env var to be configured
in case some server does something different than above */
&& (!redirect_status_env || !getenv(redirect_status_env))
) {
PUTS("<b>Security Alert!</b> The PHP CGI cannot be accessed directly.\n\n\
<p>This PHP CGI binary was compiled with force-cgi-redirect enabled. This\n\
means that a page will only be served up if the REDIRECT_STATUS CGI variable is\n\
set, e.g. via an Apache Action directive.</p>\n\
<p>For more information as to <i>why</i> this behaviour exists, see the <a href=\"http://php.net/security.cgi-bin\">\
manual page for CGI security</a>.</p>\n\
<p>For more information about changing this behaviour or re-enabling this webserver,\n\
consult the installation file that came with this distribution, or visit \n\
<a href=\"http://php.net/install.windows\">the manual page</a>.</p>\n");
#ifdef ZTS
tsrm_shutdown();
#endif
return FAILURE;
}
}
#endif /* FORCE_CGI_REDIRECT */
#if ENABLE_PATHINFO_CHECK
if (cfg_get_long("cgi.fix_pathinfo", &fix_pathinfo) == FAILURE) {
fix_pathinfo = 1;
}
#endif
#if PHP_FASTCGI
if (bindpath) {
/* Pass on the arg to the FastCGI library, with one exception.
* If just a port is specified, then we prepend a ':' onto the
* path (it's what the fastcgi library expects)
*/
int port = atoi( bindpath );
if( port ) {
char bindport[ 32 ];
snprintf( bindport, 32, ":%s", bindpath );
fcgi_fd = FCGX_OpenSocket( bindport, 128 );
} else {
fcgi_fd = FCGX_OpenSocket( bindpath, 128 );
}
if( fcgi_fd < 0 ) {
fprintf( stderr, "Couldn't create FastCGI listen socket on port %s\n", bindpath);
#ifdef ZTS
tsrm_shutdown();
#endif
return FAILURE;
}
fastcgi = !FCGX_IsCGI();
}
if (fastcgi) {
/* How many times to run PHP scripts before dying */
if( getenv( "PHP_FCGI_MAX_REQUESTS" )) {
max_requests = atoi( getenv( "PHP_FCGI_MAX_REQUESTS" ));
if( !max_requests ) {
fprintf( stderr,
"PHP_FCGI_MAX_REQUESTS is not valid\n" );
return FAILURE;
}
}
/* make php call us to get _ENV vars */
php_php_import_environment_variables = php_import_environment_variables;
php_import_environment_variables = cgi_php_import_environment_variables;
/* library is already initialized, now init our request */
FCGX_Init();
FCGX_InitRequest( &request, fcgi_fd, 0 );
#ifndef PHP_WIN32
/* Pre-fork, if required */
if( getenv( "PHP_FCGI_CHILDREN" )) {
children = atoi( getenv( "PHP_FCGI_CHILDREN" ));
if( !children ) {
fprintf( stderr,
"PHP_FCGI_CHILDREN is not valid\n" );
return FAILURE;
}
}
if( children ) {
int running = 0;
int i;
pid_t pid;
/* Create a process group for ourself & children */
setsid();
pgroup = getpgrp();
#ifdef DEBUG_FASTCGI
fprintf( stderr, "Process group %d\n", pgroup );
#endif
/* Set up handler to kill children upon exit */
act.sa_flags = 0;
act.sa_handler = fastcgi_cleanup;
if( sigaction( SIGTERM, &act, &old_term ) ||
sigaction( SIGINT, &act, &old_int ) ||
sigaction( SIGQUIT, &act, &old_quit )) {
perror( "Can't set signals" );
exit( 1 );
}
while( parent ) {
do {
#ifdef DEBUG_FASTCGI
fprintf( stderr, "Forking, %d running\n",
running );
#endif
pid = fork();
switch( pid ) {
case 0:
/* One of the children.
* Make sure we don't go round the
* fork loop any more
*/
parent = 0;
/* don't catch our signals */
sigaction( SIGTERM, &old_term, 0 );
sigaction( SIGQUIT, &old_quit, 0 );
sigaction( SIGINT, &old_int, 0 );
break;
case -1:
perror( "php (pre-forking)" );
exit( 1 );
break;
default:
/* Fine */
running++;
break;
}
} while( parent && ( running < children ));
if( parent ) {
#ifdef DEBUG_FASTCGI
fprintf( stderr, "Wait for kids, pid %d\n",
getpid() );
#endif
wait( &status );
running--;
}
}
}
#endif /* WIN32 */
}
#endif /* FASTCGI */
zend_first_try {
if (!cgi
#if PHP_FASTCGI
&& !fastcgi
#endif
) {
while ((c=ap_php_getopt(argc, argv, OPTSTRING))!=-1) {
switch (c) {
case '?':
no_headers = 1;
php_output_startup();
php_output_activate(TSRMLS_C);
SG(headers_sent) = 1;
php_cgi_usage(argv[0]);
php_end_ob_buffers(1 TSRMLS_CC);
exit(1);
break;
}
}
ap_php_optind = orig_optind;
ap_php_optarg = orig_optarg;
}
#if PHP_FASTCGI
/* start of FAST CGI loop */
/* Initialise FastCGI request structure */
#ifdef PHP_WIN32
/* attempt to set security impersonation for fastcgi
will only happen on NT based OS, others will ignore it. */
if (fastcgi) {
if (cfg_get_long("fastcgi.impersonate", &impersonate) == FAILURE) {
impersonate = 0;
}
if (impersonate) OS_SetImpersonate();
}
#endif
while (!fastcgi
|| FCGX_Accept_r( &request ) >= 0) {
#endif
#if PHP_FASTCGI
SG(server_context) = (void *) &request;
#else
SG(server_context) = (void *) 1; /* avoid server_context==NULL checks */
#endif
init_request_info(TSRMLS_C);
SG(request_info).argv0 = argv0;
zend_llist_init(&global_vars, sizeof(char *), NULL, 0);
CG(interactive) = 0;
if (!cgi
#if PHP_FASTCGI
&& !fastcgi
#endif
) {
if (cgi_sapi_module.php_ini_path_override && cgi_sapi_module.php_ini_ignore) {
no_headers = 1;
php_output_startup();
php_output_activate(TSRMLS_C);
SG(headers_sent) = 1;
php_printf("You cannot use both -n and -c switch. Use -h for help.\n");
php_end_ob_buffers(1 TSRMLS_CC);
exit(1);
}
while ((c = ap_php_getopt(argc, argv, OPTSTRING)) != -1) {
switch (c) {
case 'a': /* interactive mode */
printf("Interactive mode enabled\n\n");
interactive=1;
break;
case 'C': /* don't chdir to the script directory */
SG(options) |= SAPI_OPTION_NO_CHDIR;
break;
case 'd': /* define ini entries on command line */
define_command_line_ini_entry(ap_php_optarg);
break;
case 'e': /* enable extended info output */
CG(extended_info) = 1;
break;
case 'f': /* parse file */
script_file = estrdup(ap_php_optarg);
no_headers = 1;
break;
case 'g': /* define global variables on command line */
{
char *arg = estrdup(ap_php_optarg);
zend_llist_add_element(&global_vars, &arg);
}
break;
case 'h': /* help & quit */
case '?':
no_headers = 1;
php_output_startup();
php_output_activate(TSRMLS_C);
SG(headers_sent) = 1;
php_cgi_usage(argv[0]);
php_end_ob_buffers(1 TSRMLS_CC);
exit(1);
break;
case 'i': /* php info & quit */
if (php_request_startup(TSRMLS_C)==FAILURE) {
php_module_shutdown(TSRMLS_C);
return FAILURE;
}
if (no_headers) {
SG(headers_sent) = 1;
SG(request_info).no_headers = 1;
}
php_print_info(0xFFFFFFFF TSRMLS_CC);
php_end_ob_buffers(1 TSRMLS_CC);
exit(1);
break;
case 'l': /* syntax check mode */
no_headers = 1;
behavior=PHP_MODE_LINT;
break;
case 'm': /* list compiled in modules */
php_output_startup();
php_output_activate(TSRMLS_C);
SG(headers_sent) = 1;
php_printf("[PHP Modules]\n");
print_modules(TSRMLS_C);
php_printf("\n[Zend Modules]\n");
print_extensions(TSRMLS_C);
php_printf("\n");
php_end_ob_buffers(1 TSRMLS_CC);
exit(1);
break;
#if 0 /* not yet operational, see also below ... */
case '': /* generate indented source mode*/
behavior=PHP_MODE_INDENT;
break;
#endif
case 'q': /* do not generate HTTP headers */
no_headers = 1;
break;
case 's': /* generate highlighted HTML from source */
behavior=PHP_MODE_HIGHLIGHT;
break;
case 'v': /* show php version & quit */
no_headers = 1;
if (php_request_startup(TSRMLS_C)==FAILURE) {
php_module_shutdown(TSRMLS_C);
return FAILURE;
}
if (no_headers) {
SG(headers_sent) = 1;
SG(request_info).no_headers = 1;
}
php_printf("PHP %s (%s), Copyright (c) 1997-2003 The PHP Group\n%s", PHP_VERSION, sapi_module.name, get_zend_version());
php_end_ob_buffers(1 TSRMLS_CC);
exit(1);
break;
case 'w':
behavior=PHP_MODE_STRIP;
break;
case 'z': /* load extension file */
zend_load_extension(ap_php_optarg);
break;
default:
break;
}
}
if (!SG(request_info).query_string) {
len = 0;
if (script_file) {
len += strlen(script_file) + 1;
}
for (i = ap_php_optind; i < argc; i++) {
len += strlen(argv[i]) + 1;
}
s = malloc(len + 1); /* leak - but only for command line version, so ok */
*s = '\0'; /* we are pretending it came from the environment */
if (script_file) {
strcpy(s, script_file);
if (ap_php_optind<argc) {
strcat(s, "+");
}
}
for (i = ap_php_optind, len = 0; i < argc; i++) {
strcat(s, argv[i]);
if (i < (argc - 1)) {
strcat(s, "+");
}
}
SG(request_info).query_string = s;
}
if (script_file) {
/* override path_translated if -f on command line */
SG(request_info).path_translated = script_file;
}
if (no_headers) {
SG(headers_sent) = 1;
SG(request_info).no_headers = 1;
}
if (!SG(request_info).path_translated && argc > ap_php_optind) {
/* file is on command line, but not in -f opt */
SG(request_info).path_translated = estrdup(argv[ap_php_optind]);
}
}
#if PHP_FASTCGI
if (fastcgi) {
file_handle.type = ZEND_HANDLE_FILENAME;
file_handle.filename = SG(request_info).path_translated;
file_handle.handle.fp = NULL;
} else {
#endif
file_handle.filename = "-";
file_handle.type = ZEND_HANDLE_FP;
file_handle.handle.fp = stdin;
#if PHP_FASTCGI
}
#endif
file_handle.opened_path = NULL;
file_handle.free_filename = 0;
/* request startup only after we've done all we can to
get path_translated */
if (php_request_startup(TSRMLS_C)==FAILURE) {
php_module_shutdown(TSRMLS_C);
return FAILURE;
}
if (no_headers) {
SG(headers_sent) = 1;
SG(request_info).no_headers = 1;
}
/* This actually destructs the elements of the list - ugly hack */
zend_llist_apply(&global_vars, (llist_apply_func_t) php_register_command_line_global_vars TSRMLS_CC);
zend_llist_destroy(&global_vars);
if (cgi || SG(request_info).path_translated) {
retval = php_fopen_primary_script(&file_handle TSRMLS_CC);
}
if (cgi && (retval == FAILURE)) {
if(!argv0 || !(file_handle.handle.fp = VCWD_FOPEN(argv0, "rb"))) {
PUTS("No input file specified.\n");
php_request_shutdown((void *) 0);
php_module_shutdown(TSRMLS_C);
return FAILURE;
}
file_handle.filename = argv0;
file_handle.opened_path = expand_filepath(argv0, NULL TSRMLS_CC);
}
if (file_handle.handle.fp && (file_handle.handle.fp != stdin)) {
/* #!php support */
c = fgetc(file_handle.handle.fp);
if (c == '#') {
while (c != 10 && c != 13) {
c = fgetc(file_handle.handle.fp); /* skip to end of line */
}
/* handle situations where line is terminated by \r\n */
if (c == 13) {
if (fgetc(file_handle.handle.fp) != 10) {
long pos = ftell(file_handle.handle.fp);
fseek(file_handle.handle.fp, pos - 1, SEEK_SET);
}
}
CG(start_lineno) = 2;
} else {
rewind(file_handle.handle.fp);
}
}
switch (behavior) {
case PHP_MODE_STANDARD:
php_execute_script(&file_handle TSRMLS_CC);
exit_status = EG(exit_status);
break;
case PHP_MODE_LINT:
PG(during_request_startup) = 0;
exit_status = php_lint_script(&file_handle TSRMLS_CC);
if (exit_status==SUCCESS) {
zend_printf("No syntax errors detected in %s\n", file_handle.filename);
} else {
zend_printf("Errors parsing %s\n", file_handle.filename);
}
break;
case PHP_MODE_STRIP:
if (open_file_for_scanning(&file_handle TSRMLS_CC)==SUCCESS) {
zend_strip(TSRMLS_C);
fclose(file_handle.handle.fp);
}
return SUCCESS;
break;
case PHP_MODE_HIGHLIGHT:
{
zend_syntax_highlighter_ini syntax_highlighter_ini;
if (open_file_for_scanning(&file_handle TSRMLS_CC)==SUCCESS) {
php_get_highlight_struct(&syntax_highlighter_ini);
zend_highlight(&syntax_highlighter_ini TSRMLS_CC);
fclose(file_handle.handle.fp);
}
return SUCCESS;
}
break;
#if 0
/* Zeev might want to do something with this one day */
case PHP_MODE_INDENT:
open_file_for_scanning(&file_handle TSRMLS_CC);
zend_indent();
fclose(file_handle.handle.fp);
return SUCCESS;
break;
#endif
}
{
char *path_translated;
/* Go through this trouble so that the memory manager doesn't warn
* about SG(request_info).path_translated leaking
*/
if (SG(request_info).path_translated) {
path_translated = strdup(SG(request_info).path_translated);
STR_FREE(SG(request_info).path_translated);
SG(request_info).path_translated = path_translated;
}
php_request_shutdown((void *) 0);
if (SG(request_info).path_translated) {
free(SG(request_info).path_translated);
SG(request_info).path_translated = NULL;
}
}
#if PHP_FASTCGI
if (!fastcgi) break;
/* only fastcgi will get here */
requests++;
if( max_requests && ( requests == max_requests )) {
FCGX_Finish_r(&request);
if (bindpath) free (bindpath);
break;
}
/* end of fastcgi loop */
}
#endif
if (cgi_sapi_module.php_ini_path_override) {
free(cgi_sapi_module.php_ini_path_override);
}
} zend_catch {
exit_status = 255;
} zend_end_try();
php_module_shutdown(TSRMLS_C);
sapi_shutdown();
#ifdef ZTS
tsrm_shutdown();
#endif
#if PHP_WIN32 && ZEND_DEBUG && 0
_CrtDumpMemoryLeaks( );
#endif
return exit_status;
}
/* }}} */
/*
* 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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