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fpm_main.c
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fpm_main.c
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/*
+----------------------------------------------------------------------+
| PHP Version 7 |
+----------------------------------------------------------------------+
| Copyright (c) 1997-2016 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@lerdorf.on.ca> |
| Stig Bakken <ssb@php.net> |
| Zeev Suraski <zeev@zend.com> |
| FastCGI: Ben Mansell <php@slimyhorror.com> |
| Shane Caraveo <shane@caraveo.com> |
| Dmitry Stogov <dmitry@zend.com> |
+----------------------------------------------------------------------+
*/
/* $Id: cgi_main.c 291497 2009-11-30 14:43:22Z dmitry $ */
#include "php.h"
#include "php_globals.h"
#include "php_variables.h"
#include "zend_modules.h"
#include "php.h"
#include "zend_ini_scanner.h"
#include "zend_globals.h"
#include "zend_stream.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
#if HAVE_SYS_TYPES_H
# include <sys/types.h>
#endif
#if HAVE_SYS_WAIT_H
# include <sys/wait.h>
#endif
#if HAVE_FCNTL_H
# include <fcntl.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
#ifdef __riscos__
# include <unixlib/local.h>
int __riscosify_control = __RISCOSIFY_STRICT_UNIX_SPECS;
#endif
#include "zend_compile.h"
#include "zend_execute.h"
#include "zend_highlight.h"
#include "php_getopt.h"
#include "http_status_codes.h"
#include "fastcgi.h"
#include <php_config.h>
#include "fpm.h"
#include "fpm_request.h"
#include "fpm_status.h"
#include "fpm_conf.h"
#include "fpm_php.h"
#include "fpm_log.h"
#include "zlog.h"
#ifndef PHP_WIN32
/* 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);
#ifndef PHP_WIN32
/* these globals used for forking children on unix systems */
/**
* Set to non-zero if we are the parent process
*/
static int parent = 1;
#endif
static int request_body_fd;
static int fpm_is_running = 0;
static char *sapi_cgibin_getenv(char *name, size_t name_len);
static void fastcgi_ini_parser(zval *arg1, zval *arg2, zval *arg3, int callback_type, void *arg);
#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
static char *php_optarg = NULL;
static int php_optind = 1;
static zend_module_entry cgi_module_entry;
static const opt_struct OPTIONS[] = {
{'c', 1, "php-ini"},
{'d', 1, "define"},
{'e', 0, "profile-info"},
{'h', 0, "help"},
{'i', 0, "info"},
{'m', 0, "modules"},
{'n', 0, "no-php-ini"},
{'?', 0, "usage"},/* help alias (both '?' and 'usage') */
{'v', 0, "version"},
{'y', 1, "fpm-config"},
{'t', 0, "test"},
{'p', 1, "prefix"},
{'g', 1, "pid"},
{'R', 0, "allow-to-run-as-root"},
{'D', 0, "daemonize"},
{'F', 0, "nodaemonize"},
{'O', 0, "force-stderr"},
{'-', 0, NULL} /* end of args */
};
typedef struct _php_cgi_globals_struct {
zend_bool rfc2616_headers;
zend_bool nph;
zend_bool fix_pathinfo;
zend_bool force_redirect;
zend_bool discard_path;
zend_bool fcgi_logging;
char *redirect_status_env;
HashTable user_config_cache;
char *error_header;
char *fpm_config;
} php_cgi_globals_struct;
/* {{{ user_config_cache
*
* Key for each cache entry is dirname(PATH_TRANSLATED).
*
* NOTE: Each cache entry config_hash contains the combination from all user ini files found in
* the path starting from doc_root throught to dirname(PATH_TRANSLATED). There is no point
* storing per-file entries as it would not be possible to detect added / deleted entries
* between separate files.
*/
typedef struct _user_config_cache_entry {
time_t expires;
HashTable *user_config;
} user_config_cache_entry;
static void user_config_cache_entry_dtor(zval *el)
{
user_config_cache_entry *entry = (user_config_cache_entry *)Z_PTR_P(el);
zend_hash_destroy(entry->user_config);
free(entry->user_config);
free(entry);
}
/* }}} */
#ifdef ZTS
static int php_cgi_globals_id;
#define CGIG(v) TSRMG(php_cgi_globals_id, php_cgi_globals_struct *, v)
#else
static php_cgi_globals_struct php_cgi_globals;
#define CGIG(v) (php_cgi_globals.v)
#endif
#ifdef PHP_WIN32
#define TRANSLATE_SLASHES(path) \
{ \
char *tmp = path; \
while (*tmp) { \
if (*tmp == '\\') *tmp = '/'; \
tmp++; \
} \
}
#else
#define TRANSLATE_SLASHES(path)
#endif
static int print_module_info(zval *zv) /* {{{ */
{
zend_module_entry *module = Z_PTR_P(zv);
php_printf("%s\n", module->name);
return 0;
}
/* }}} */
static int module_name_cmp(const void *a, const void *b) /* {{{ */
{
Bucket *f = (Bucket *) a;
Bucket *s = (Bucket *) b;
return strcasecmp( ((zend_module_entry *) Z_PTR(f->val))->name,
((zend_module_entry *) Z_PTR(s->val))->name);
}
/* }}} */
static void print_modules(void) /* {{{ */
{
HashTable sorted_registry;
zend_hash_init(&sorted_registry, 50, NULL, NULL, 1);
zend_hash_copy(&sorted_registry, &module_registry, NULL);
zend_hash_sort(&sorted_registry, module_name_cmp, 0);
zend_hash_apply(&sorted_registry, print_module_info);
zend_hash_destroy(&sorted_registry);
}
/* }}} */
static int print_extension_info(zend_extension *ext, void *arg) /* {{{ */
{
php_printf("%s\n", ext->name);
return 0;
}
/* }}} */
static int extension_name_cmp(const zend_llist_element **f, const zend_llist_element **s) /* {{{ */
{
zend_extension *fe = (zend_extension*)(*f)->data;
zend_extension *se = (zend_extension*)(*s)->data;
return strcmp(fe->name, se->name);
}
/* }}} */
static void print_extensions(void) /* {{{ */
{
zend_llist sorted_exts;
zend_llist_copy(&sorted_exts, &zend_extensions);
sorted_exts.dtor = NULL;
zend_llist_sort(&sorted_exts, extension_name_cmp);
zend_llist_apply_with_argument(&sorted_exts, (llist_apply_with_arg_func_t) print_extension_info, NULL);
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) /* {{{ */
{
ssize_t ret;
/* sapi has started which means everyhting must be send through fcgi */
if (fpm_is_running) {
fcgi_request *request = (fcgi_request*) SG(server_context);
ret = fcgi_write(request, FCGI_STDOUT, str, str_length);
if (ret <= 0) {
return 0;
}
return (size_t)ret;
}
/* sapi has not started, output to stdout instead of fcgi */
#ifdef PHP_WRITE_STDOUT
ret = write(STDOUT_FILENO, str, str_length);
if (ret <= 0) {
return 0;
}
return (size_t)ret;
#else
return fwrite(str, 1, MIN(str_length, 16384), stdout);
#endif
}
/* }}} */
static size_t sapi_cgibin_ub_write(const char *str, size_t str_length) /* {{{ */
{
const char *ptr = str;
uint remaining = str_length;
size_t ret;
while (remaining > 0) {
ret = sapi_cgibin_single_write(ptr, remaining);
if (!ret) {
php_handle_aborted_connection();
return str_length - remaining;
}
ptr += ret;
remaining -= ret;
}
return str_length;
}
/* }}} */
static void sapi_cgibin_flush(void *server_context) /* {{{ */
{
/* fpm has started, let use fcgi instead of stdout */
if (fpm_is_running) {
fcgi_request *request = (fcgi_request*) server_context;
if (
#ifndef PHP_WIN32
!parent &&
#endif
request && !fcgi_flush(request, 0)) {
php_handle_aborted_connection();
}
return;
}
/* fpm has not started yet, let use stdout instead of fcgi */
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) /* {{{ */
{
char buf[SAPI_CGI_MAX_HEADER_LENGTH];
sapi_header_struct *h;
zend_llist_position pos;
zend_bool ignore_status = 0;
int response_status = SG(sapi_headers).http_response_code;
if (SG(request_info).no_headers == 1) {
return SAPI_HEADER_SENT_SUCCESSFULLY;
}
if (CGIG(nph) || SG(sapi_headers).http_response_code != 200)
{
int len;
zend_bool has_status = 0;
if (CGIG(rfc2616_headers) && SG(sapi_headers).http_status_line) {
char *s;
len = slprintf(buf, SAPI_CGI_MAX_HEADER_LENGTH, "%s\r\n", SG(sapi_headers).http_status_line);
if ((s = strchr(SG(sapi_headers).http_status_line, ' '))) {
response_status = atoi((s + 1));
}
if (len > SAPI_CGI_MAX_HEADER_LENGTH) {
len = SAPI_CGI_MAX_HEADER_LENGTH;
}
} else {
char *s;
if (SG(sapi_headers).http_status_line &&
(s = strchr(SG(sapi_headers).http_status_line, ' ')) != 0 &&
(s - SG(sapi_headers).http_status_line) >= 5 &&
strncasecmp(SG(sapi_headers).http_status_line, "HTTP/", 5) == 0
) {
len = slprintf(buf, sizeof(buf), "Status:%s\r\n", s);
response_status = atoi((s + 1));
} else {
h = (sapi_header_struct*)zend_llist_get_first_ex(&sapi_headers->headers, &pos);
while (h) {
if (h->header_len > sizeof("Status:") - 1 &&
strncasecmp(h->header, "Status:", sizeof("Status:") - 1) == 0
) {
has_status = 1;
break;
}
h = (sapi_header_struct*)zend_llist_get_next_ex(&sapi_headers->headers, &pos);
}
if (!has_status) {
http_response_status_code_pair *err = (http_response_status_code_pair*)http_status_map;
while (err->code != 0) {
if (err->code == SG(sapi_headers).http_response_code) {
break;
}
err++;
}
if (err->str) {
len = slprintf(buf, sizeof(buf), "Status: %d %s\r\n", SG(sapi_headers).http_response_code, err->str);
} else {
len = slprintf(buf, sizeof(buf), "Status: %d\r\n", SG(sapi_headers).http_response_code);
}
}
}
}
if (!has_status) {
PHPWRITE_H(buf, len);
ignore_status = 1;
}
}
h = (sapi_header_struct*)zend_llist_get_first_ex(&sapi_headers->headers, &pos);
while (h) {
/* prevent CRLFCRLF */
if (h->header_len) {
if (h->header_len > sizeof("Status:") - 1 &&
strncasecmp(h->header, "Status:", sizeof("Status:") - 1) == 0
) {
if (!ignore_status) {
ignore_status = 1;
PHPWRITE_H(h->header, h->header_len);
PHPWRITE_H("\r\n", 2);
}
} else if (response_status == 304 && h->header_len > sizeof("Content-Type:") - 1 &&
strncasecmp(h->header, "Content-Type:", sizeof("Content-Type:") - 1) == 0
) {
h = (sapi_header_struct*)zend_llist_get_next_ex(&sapi_headers->headers, &pos);
continue;
} else {
PHPWRITE_H(h->header, h->header_len);
PHPWRITE_H("\r\n", 2);
}
}
h = (sapi_header_struct*)zend_llist_get_next_ex(&sapi_headers->headers, &pos);
}
PHPWRITE_H("\r\n", 2);
return SAPI_HEADER_SENT_SUCCESSFULLY;
}
/* }}} */
#ifndef STDIN_FILENO
# define STDIN_FILENO 0
#endif
#ifndef HAVE_ATTRIBUTE_WEAK
static void fpm_fcgi_log(int type, const char *fmt, ...) /* {{{ */
#else
void fcgi_log(int type, const char *fmt, ...)
#endif
{
va_list args;
va_start(args, fmt);
vzlog("", 0, type, fmt, args);
va_end(args);
}
/* }}} */
static size_t sapi_cgi_read_post(char *buffer, size_t count_bytes) /* {{{ */
{
uint read_bytes = 0;
int tmp_read_bytes;
size_t remaining = SG(request_info).content_length - SG(read_post_bytes);
if (remaining < count_bytes) {
count_bytes = remaining;
}
while (read_bytes < count_bytes) {
fcgi_request *request = (fcgi_request*) SG(server_context);
if (request_body_fd == -1) {
char *request_body_filename = FCGI_GETENV(request, "REQUEST_BODY_FILE");
if (request_body_filename && *request_body_filename) {
request_body_fd = open(request_body_filename, O_RDONLY);
if (0 > request_body_fd) {
php_error(E_WARNING, "REQUEST_BODY_FILE: open('%s') failed: %s (%d)",
request_body_filename, strerror(errno), errno);
return 0;
}
}
}
/* If REQUEST_BODY_FILE variable not available - read post body from fastcgi stream */
if (request_body_fd < 0) {
tmp_read_bytes = fcgi_read(request, buffer + read_bytes, count_bytes - read_bytes);
} else {
tmp_read_bytes = read(request_body_fd, 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) /* {{{ */
{
/* if fpm has started, use fcgi env */
if (fpm_is_running) {
fcgi_request *request = (fcgi_request*) SG(server_context);
return fcgi_getenv(request, name, name_len);
}
/* if fpm has not started yet, use std env */
return getenv(name);
}
/* }}} */
#if 0
static char *_sapi_cgibin_putenv(char *name, char *value) /* {{{ */
{
int name_len;
if (!name) {
return NULL;
}
name_len = strlen(name);
fcgi_request *request = (fcgi_request*) SG(server_context);
return fcgi_putenv(request, name, name_len, value);
}
/* }}} */
#endif
static char *sapi_cgi_read_cookies(void) /* {{{ */
{
fcgi_request *request = (fcgi_request*) SG(server_context);
return FCGI_GETENV(request, "HTTP_COOKIE");
}
/* }}} */
static void cgi_php_load_env_var(char *var, unsigned int var_len, char *val, unsigned int val_len, void *arg) /* {{{ */
{
zval *array_ptr = (zval*)arg;
int filter_arg = (Z_ARR_P(array_ptr) == Z_ARR(PG(http_globals)[TRACK_VARS_ENV]))?PARSE_ENV:PARSE_SERVER;
size_t new_val_len;
if (sapi_module.input_filter(filter_arg, var, &val, strlen(val), &new_val_len)) {
php_register_variable_safe(var, val, new_val_len, array_ptr);
}
}
/* }}} */
void cgi_php_import_environment_variables(zval *array_ptr) /* {{{ */
{
fcgi_request *request = NULL;
if (Z_TYPE(PG(http_globals)[TRACK_VARS_ENV]) == IS_ARRAY &&
Z_ARR_P(array_ptr) != Z_ARR(PG(http_globals)[TRACK_VARS_ENV]) &&
zend_hash_num_elements(Z_ARRVAL(PG(http_globals)[TRACK_VARS_ENV])) > 0
) {
zval_dtor(array_ptr);
ZVAL_DUP(array_ptr, &PG(http_globals)[TRACK_VARS_ENV]);
return;
} else if (Z_TYPE(PG(http_globals)[TRACK_VARS_SERVER]) == IS_ARRAY &&
Z_ARR_P(array_ptr) != Z_ARR(PG(http_globals)[TRACK_VARS_SERVER]) &&
zend_hash_num_elements(Z_ARRVAL(PG(http_globals)[TRACK_VARS_SERVER])) > 0
) {
zval_dtor(array_ptr);
ZVAL_DUP(array_ptr, &PG(http_globals)[TRACK_VARS_SERVER]);
return;
}
/* call php's original import as a catch-all */
php_php_import_environment_variables(array_ptr);
request = (fcgi_request*) SG(server_context);
fcgi_loadenv(request, cgi_php_load_env_var, array_ptr);
}
/* }}} */
static void sapi_cgi_register_variables(zval *track_vars_array) /* {{{ */
{
size_t php_self_len;
char *php_self;
/* In CGI mode, we consider the environment to be a part of the server
* variables
*/
php_import_environment_variables(track_vars_array);
if (CGIG(fix_pathinfo)) {
char *script_name = SG(request_info).request_uri;
unsigned int script_name_len = script_name ? strlen(script_name) : 0;
char *path_info = sapi_cgibin_getenv("PATH_INFO", sizeof("PATH_INFO") - 1);
unsigned int path_info_len = path_info ? strlen(path_info) : 0;
php_self_len = script_name_len + path_info_len;
php_self = emalloc(php_self_len + 1);
/* Concat script_name and path_info into php_self */
if (script_name) {
memcpy(php_self, script_name, script_name_len + 1);
}
if (path_info) {
memcpy(php_self + script_name_len, path_info, path_info_len + 1);
}
/* Build the special-case PHP_SELF variable for the CGI version */
if (sapi_module.input_filter(PARSE_SERVER, "PHP_SELF", &php_self, php_self_len, &php_self_len)) {
php_register_variable_safe("PHP_SELF", php_self, php_self_len, track_vars_array);
}
efree(php_self);
} else {
php_self = SG(request_info).request_uri ? SG(request_info).request_uri : "";
php_self_len = strlen(php_self);
if (sapi_module.input_filter(PARSE_SERVER, "PHP_SELF", &php_self, php_self_len, &php_self_len)) {
php_register_variable_safe("PHP_SELF", php_self, php_self_len, track_vars_array);
}
}
}
/* }}} */
/* {{{ sapi_cgi_log_fastcgi
*
* Ignore level, we want to send all messages through fastcgi
*/
void sapi_cgi_log_fastcgi(int level, char *message, size_t len)
{
fcgi_request *request = (fcgi_request*) SG(server_context);
/* ensure we want:
* - to log (fastcgi.logging in php.ini)
* - we are currently dealing with a request
* - the message is not empty
*/
if (CGIG(fcgi_logging) && request && message && len > 0) {
ssize_t ret;
char *buf = malloc(len + 2);
memcpy(buf, message, len);
memcpy(buf + len, "\n", sizeof("\n"));
ret = fcgi_write(request, FCGI_STDERR, buf, len + 1);
free(buf);
if (ret < 0) {
php_handle_aborted_connection();
}
}
}
/* }}} */
/* {{{ sapi_cgi_log_message
*/
static void sapi_cgi_log_message(char *message, int syslog_type_int)
{
zlog(ZLOG_NOTICE, "PHP message: %s", message);
}
/* }}} */
/* {{{ php_cgi_ini_activate_user_config
*/
static void php_cgi_ini_activate_user_config(char *path, int path_len, const char *doc_root, int doc_root_len, int start)
{
char *ptr;
time_t request_time = sapi_get_request_time();
user_config_cache_entry *entry = zend_hash_str_find_ptr(&CGIG(user_config_cache), path, path_len);
/* Find cached config entry: If not found, create one */
if (!entry) {
entry = pemalloc(sizeof(user_config_cache_entry), 1);
entry->expires = 0;
entry->user_config = (HashTable *) pemalloc(sizeof(HashTable), 1);
zend_hash_init(entry->user_config, 0, NULL, config_zval_dtor, 1);
zend_hash_str_update_ptr(&CGIG(user_config_cache), path, path_len, entry);
}
/* Check whether cache entry has expired and rescan if it is */
if (request_time > entry->expires) {
char * real_path;
int real_path_len;
char *s1, *s2;
int s_len;
/* Clear the expired config */
zend_hash_clean(entry->user_config);
if (!IS_ABSOLUTE_PATH(path, path_len)) {
real_path = tsrm_realpath(path, NULL);
if (real_path == NULL) {
return;
}
real_path_len = strlen(real_path);
path = real_path;
path_len = real_path_len;
}
if (path_len > doc_root_len) {
s1 = (char *) doc_root;
s2 = path;
s_len = doc_root_len;
} else {
s1 = path;
s2 = (char *) doc_root;
s_len = path_len;
}
/* we have to test if path is part of DOCUMENT_ROOT.
if it is inside the docroot, we scan the tree up to the docroot
to find more user.ini, if not we only scan the current path.
*/
#ifdef PHP_WIN32
if (strnicmp(s1, s2, s_len) == 0) {
#else
if (strncmp(s1, s2, s_len) == 0) {
#endif
ptr = s2 + start; /* start is the point where doc_root ends! */
while ((ptr = strchr(ptr, DEFAULT_SLASH)) != NULL) {
*ptr = 0;
php_parse_user_ini_file(path, PG(user_ini_filename), entry->user_config);
*ptr = '/';
ptr++;
}
} else {
php_parse_user_ini_file(path, PG(user_ini_filename), entry->user_config);
}
entry->expires = request_time + PG(user_ini_cache_ttl);
}
/* Activate ini entries with values from the user config hash */
php_ini_activate_config(entry->user_config, PHP_INI_PERDIR, PHP_INI_STAGE_HTACCESS);
}
/* }}} */
static int sapi_cgi_activate(void) /* {{{ */
{
fcgi_request *request = (fcgi_request*) SG(server_context);
char *path, *doc_root, *server_name;
uint path_len, doc_root_len, server_name_len;
/* PATH_TRANSLATED should be defined at this stage but better safe than sorry :) */
if (!SG(request_info).path_translated) {
return FAILURE;
}
if (php_ini_has_per_host_config()) {
/* Activate per-host-system-configuration defined in php.ini and stored into configuration_hash during startup */
server_name = FCGI_GETENV(request, "SERVER_NAME");
/* SERVER_NAME should also be defined at this stage..but better check it anyway */
if (server_name) {
server_name_len = strlen(server_name);
server_name = estrndup(server_name, server_name_len);
zend_str_tolower(server_name, server_name_len);
php_ini_activate_per_host_config(server_name, server_name_len);
efree(server_name);
}
}
if (php_ini_has_per_dir_config() ||
(PG(user_ini_filename) && *PG(user_ini_filename))
) {
/* Prepare search path */
path_len = strlen(SG(request_info).path_translated);
/* Make sure we have trailing slash! */
if (!IS_SLASH(SG(request_info).path_translated[path_len])) {
path = emalloc(path_len + 2);
memcpy(path, SG(request_info).path_translated, path_len + 1);
path_len = zend_dirname(path, path_len);
path[path_len++] = DEFAULT_SLASH;
} else {
path = estrndup(SG(request_info).path_translated, path_len);
path_len = zend_dirname(path, path_len);
}
path[path_len] = 0;
/* Activate per-dir-system-configuration defined in php.ini and stored into configuration_hash during startup */
php_ini_activate_per_dir_config(path, path_len); /* Note: for global settings sake we check from root to path */
/* Load and activate user ini files in path starting from DOCUMENT_ROOT */
if (PG(user_ini_filename) && *PG(user_ini_filename)) {
doc_root = FCGI_GETENV(request, "DOCUMENT_ROOT");
/* DOCUMENT_ROOT should also be defined at this stage..but better check it anyway */
if (doc_root) {
doc_root_len = strlen(doc_root);
if (doc_root_len > 0 && IS_SLASH(doc_root[doc_root_len - 1])) {
--doc_root_len;
}
#ifdef PHP_WIN32
/* paths on windows should be case-insensitive */
doc_root = estrndup(doc_root, doc_root_len);
zend_str_tolower(doc_root, doc_root_len);
#endif
php_cgi_ini_activate_user_config(path, path_len, doc_root, doc_root_len, doc_root_len - 1);
}
}
#ifdef PHP_WIN32
efree(doc_root);
#endif
efree(path);
}
return SUCCESS;
}
/* }}} */
static int sapi_cgi_deactivate(void) /* {{{ */
{
/* flush only when SAPI was started. The reasons are:
1. SAPI Deactivate is called from two places: module init and request shutdown
2. When the first call occurs and the request is not set up, flush fails on FastCGI.
*/
if (SG(sapi_started)) {
if (
#ifndef PHP_WIN32
!parent &&
#endif
!fcgi_finish_request((fcgi_request*)SG(server_context), 0)) {
php_handle_aborted_connection();
}
}
return SUCCESS;
}
/* }}} */
static int php_cgi_startup(sapi_module_struct *sapi_module) /* {{{ */
{
if (php_module_startup(sapi_module, &cgi_module_entry, 1) == FAILURE) {
return FAILURE;
}
return SUCCESS;
}
/* }}} */
/* {{{ sapi_module_struct cgi_sapi_module
*/
static sapi_module_struct cgi_sapi_module = {
"fpm-fcgi", /* name */
"FPM/FastCGI", /* pretty name */
php_cgi_startup, /* startup */
php_module_shutdown_wrapper, /* shutdown */
sapi_cgi_activate, /* 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 */
NULL, /* Get request time */
NULL, /* Child terminate */
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 [-n] [-e] [-h] [-i] [-m] [-v] [-t] [-p <prefix>] [-g <pid>] [-c <file>] [-d foo[=bar]] [-y <file>] [-D] [-F [-O]]\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"
" -h This help\n"
" -i PHP information\n"
" -m Show compiled in modules\n"
" -v Version number\n"
" -p, --prefix <dir>\n"
" Specify alternative prefix path to FastCGI process manager (default: %s).\n"
" -g, --pid <file>\n"
" Specify the PID file location.\n"
" -y, --fpm-config <file>\n"
" Specify alternative path to FastCGI process manager config file.\n"
" -t, --test Test FPM configuration and exit\n"
" -D, --daemonize force to run in background, and ignore daemonize option from config file\n"
" -F, --nodaemonize\n"
" force to stay in foreground, and ignore daemonize option from config file\n"
" -O, --force-stderr\n"
" force output to stderr in nodaemonize even if stderr is not a TTY\n"
" -R, --allow-to-run-as-root\n"
" Allow pool to run as root (disabled by default)\n",
prog, PHP_PREFIX);
}
/* }}} */
/* {{{ is_valid_path
*
* some server configurations allow '..' to slip through in the
* translated path. We'll just refuse to handle such a path.
*/
static int is_valid_path(const char *path)
{
const char *p;
if (!path) {
return 0;
}
p = strstr(path, "..");
if (p) {
if ((p == path || IS_SLASH(*(p-1))) &&
(*(p+2) == 0 || IS_SLASH(*(p+2)))
) {
return 0;
}
while (1) {
p = strstr(p+1, "..");
if (!p) {
break;
}
if (IS_SLASH(*(p-1)) &&
(*(p+2) == 0 || IS_SLASH(*(p+2)))
) {
return 0;
}
}
}
return 1;
}
/* }}} */
/* {{{ 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):