mod_php4.c

php-4.4.7学习linux时下载的源代码

		&& (!PG(safe_mode) || (PG(safe_mode) && !auth_type(r)))
		&& !strcasecmp(getword(r->pool, &authorization, ' '), "Basic")) {
		tmp = uudecode(r->pool, authorization);
		tmp_user = getword_nulls_nc(r->pool, &tmp, ':');
		SG(request_info).auth_user = NULL;
		if (tmp_user) {
			r->connection->user = pstrdup(r->connection->pool, tmp_user);
			r->connection->ap_auth_type = "Basic";
			SG(request_info).auth_user = estrdup(tmp_user);
		}
		SG(request_info).auth_password = NULL;
		if (tmp) {
			SG(request_info).auth_password = estrdup(tmp);
		}
	} else {
		SG(request_info).auth_user = NULL;
		SG(request_info).auth_password = NULL;
	}
}
/* }}} */

/* {{{ php_apache_alter_ini_entries
 */
static int php_apache_alter_ini_entries(php_per_dir_entry *per_dir_entry TSRMLS_DC)
{
	zend_alter_ini_entry(per_dir_entry->key, per_dir_entry->key_length+1, per_dir_entry->value, per_dir_entry->value_length, per_dir_entry->type, PHP_INI_STAGE_ACTIVATE);
	return 0;
}
/* }}} */

/* {{{ php_apache_get_default_mimetype
 */
static char *php_apache_get_default_mimetype(request_rec *r TSRMLS_DC)
{
	
	char *mimetype;
	if (SG(default_mimetype) || SG(default_charset)) {
		/* Assume output will be of the default MIME type.  Individual
		   scripts may change this later. */
		char *tmpmimetype;
		tmpmimetype = sapi_get_default_content_type(TSRMLS_C);
		mimetype = pstrdup(r->pool, tmpmimetype);
		efree(tmpmimetype);
	} else {
		mimetype = SAPI_DEFAULT_MIMETYPE "; charset=" SAPI_DEFAULT_CHARSET;
	}
	return mimetype;
}
/* }}} */

/* {{{ send_php
 */
static int send_php(request_rec *r, int display_source_mode, char *filename)
{
	int retval;
	HashTable *per_dir_conf;
	TSRMLS_FETCH();

	if (AP(in_request)) {
		zend_file_handle fh = {0};

		fh.filename = r->filename;
		fh.opened_path = NULL;
		fh.free_filename = 0;
		fh.type = ZEND_HANDLE_FILENAME;

#if defined(ZEND_MULTIBYTE) && defined(HAVE_MBSTRING)
		php_mb_set_zend_encoding(TSRMLS_C);
#endif /* defined(ZEND_MULTIBYTE) && defined(HAVE_MBSTRING) */

		zend_execute_scripts(ZEND_INCLUDE TSRMLS_CC, NULL, 1, &fh);
		return OK;
	}

	zend_first_try {

		/* Make sure file exists */
		if (filename == NULL && r->finfo.st_mode == 0) {
			return DECLINED;
		}

		per_dir_conf = (HashTable *) get_module_config(r->per_dir_config, &php4_module);
		if (per_dir_conf) {
			zend_hash_apply((HashTable *) per_dir_conf, (apply_func_t) php_apache_alter_ini_entries TSRMLS_CC);
		}
		
		/* If PHP parser engine has been turned off with an "engine off"
		 * directive, then decline to handle this request
		 */
		if (!AP(engine)) {
			r->content_type = php_apache_get_default_mimetype(r TSRMLS_CC);
			r->allowed |= (1 << METHODS) - 1;
			zend_try {
				zend_ini_deactivate(TSRMLS_C);
			} zend_end_try();
			return DECLINED;
		}
		if (filename == NULL) {
			filename = r->filename;
		}

		/* Apache 1.2 has a more complex mechanism for reading POST data */
#if MODULE_MAGIC_NUMBER > 19961007
		if ((retval = setup_client_block(r, REQUEST_CHUNKED_ERROR))) {
			zend_try {
				zend_ini_deactivate(TSRMLS_C);
			} zend_end_try();
			return retval;
		}
#endif

		if (AP(last_modified)) {
#if MODULE_MAGIC_NUMBER < 19970912
			if ((retval = set_last_modified(r, r->finfo.st_mtime))) {
				zend_try {
					zend_ini_deactivate(TSRMLS_C);
				} zend_end_try();
				return retval;
			}
#else
			update_mtime (r, r->finfo.st_mtime);
			set_last_modified(r);
			set_etag(r);
#endif
		}
		/* Assume output will be of the default MIME type.  Individual
		   scripts may change this later in the request. */
		r->content_type = php_apache_get_default_mimetype(r TSRMLS_CC);

		/* Init timeout */
		hard_timeout("send", r);

		SG(server_context) = r;
		
		php_save_umask();
		add_common_vars(r);
		add_cgi_vars(r);

		init_request_info(TSRMLS_C);
		apache_php_module_main(r, display_source_mode TSRMLS_CC);

		/* Done, restore umask, turn off timeout, close file and return */
		php_restore_umask();
		kill_timeout(r);
	} zend_end_try();

	return OK;
}
/* }}} */

/* {{{ send_parsed_php
 */
static int send_parsed_php(request_rec * r)
{
	int result = send_php(r, 0, NULL);

#if MEMORY_LIMIT
	{
		char *mem_usage;
		TSRMLS_FETCH();
 
		mem_usage = ap_psprintf(r->pool, "%u", AG(allocated_memory_peak));
		AG(allocated_memory_peak) = 0;
		ap_table_setn(r->notes, "mod_php_memory_usage", mem_usage);
	}
#endif

	return result;
}
/* }}} */

/* {{{ send_parsed_php_source
 */
static int send_parsed_php_source(request_rec * r)
{
	return send_php(r, 1, NULL);
}
/* }}} */

/* {{{ destroy_per_dir_entry
 */
static void destroy_per_dir_entry(php_per_dir_entry *per_dir_entry)
{
	free(per_dir_entry->key);
	free(per_dir_entry->value);
}
/* }}} */

/* {{{ copy_per_dir_entry
 */
static void copy_per_dir_entry(php_per_dir_entry *per_dir_entry)
{
	php_per_dir_entry tmp = *per_dir_entry;

	per_dir_entry->key = (char *) malloc(tmp.key_length+1);
	memcpy(per_dir_entry->key, tmp.key, tmp.key_length);
	per_dir_entry->key[per_dir_entry->key_length] = 0;

	per_dir_entry->value = (char *) malloc(tmp.value_length+1);
	memcpy(per_dir_entry->value, tmp.value, tmp.value_length);
	per_dir_entry->value[per_dir_entry->value_length] = 0;
}
/* }}} */

/* {{{ should_overwrite_per_dir_entry
 */
static zend_bool should_overwrite_per_dir_entry(php_per_dir_entry *orig_per_dir_entry, php_per_dir_entry *new_per_dir_entry)
{
	if (new_per_dir_entry->type==PHP_INI_SYSTEM
		&& orig_per_dir_entry->type!=PHP_INI_SYSTEM) {
		return 1;
	} else {
		return 0;
	}
}
/* }}} */

/* {{{ php_destroy_per_dir_info
 */
static void php_destroy_per_dir_info(HashTable *per_dir_info)
{
	zend_hash_destroy(per_dir_info);
	free(per_dir_info);
}
/* }}} */

/* {{{ php_create_dir
 */
static void *php_create_dir(pool *p, char *dummy)
{
	HashTable *per_dir_info;

	per_dir_info = (HashTable *) malloc(sizeof(HashTable));
	zend_hash_init_ex(per_dir_info, 5, NULL, (void (*)(void *)) destroy_per_dir_entry, 1, 0);
	register_cleanup(p, (void *) per_dir_info, (void (*)(void *)) php_destroy_per_dir_info, (void (*)(void *)) zend_hash_destroy);

	return per_dir_info;
}
/* }}} */

/* {{{ php_merge_dir
 */
static void *php_merge_dir(pool *p, void *basev, void *addv)
{
	/* This function *must* return addv, and not modify basev */
	zend_hash_merge_ex((HashTable *) addv, (HashTable *) basev, (copy_ctor_func_t) copy_per_dir_entry, sizeof(php_per_dir_entry), (zend_bool (*)(void *, void *)) should_overwrite_per_dir_entry);
	return addv;
}
/* }}} */

/* {{{ php_apache_value_handler_ex
 */
static CONST_PREFIX char *php_apache_value_handler_ex(cmd_parms *cmd, HashTable *conf, char *arg1, char *arg2, int mode)
{
	php_per_dir_entry per_dir_entry;

	if (!apache_php_initialized) {
		apache_php_initialized = 1;
#ifdef ZTS
		tsrm_startup(1, 1, 0, NULL);
#endif
		sapi_startup(&apache_sapi_module);
		php_apache_startup(&apache_sapi_module);
	}
	per_dir_entry.type = mode;

	if (strcasecmp(arg2, "none") == 0) {
		arg2 = "";
	}

	per_dir_entry.key_length = strlen(arg1);
	per_dir_entry.value_length = strlen(arg2);

	per_dir_entry.key = (char *) malloc(per_dir_entry.key_length+1);
	memcpy(per_dir_entry.key, arg1, per_dir_entry.key_length);
	per_dir_entry.key[per_dir_entry.key_length] = 0;

	per_dir_entry.value = (char *) malloc(per_dir_entry.value_length+1);
	memcpy(per_dir_entry.value, arg2, per_dir_entry.value_length);
	per_dir_entry.value[per_dir_entry.value_length] = 0;

	zend_hash_update(conf, per_dir_entry.key, per_dir_entry.key_length, &per_dir_entry, sizeof(php_per_dir_entry), NULL);
	return NULL;
}
/* }}} */

/* {{{ php_apache_value_handler
 */
static CONST_PREFIX char *php_apache_value_handler(cmd_parms *cmd, HashTable *conf, char *arg1, char *arg2)
{
	return php_apache_value_handler_ex(cmd, conf, arg1, arg2, PHP_INI_PERDIR);
}
/* }}} */

/* {{{ php_apache_admin_value_handler
 */
static CONST_PREFIX char *php_apache_admin_value_handler(cmd_parms *cmd, HashTable *conf, char *arg1, char *arg2)
{
	return php_apache_value_handler_ex(cmd, conf, arg1, arg2, PHP_INI_SYSTEM);
}
/* }}} */

/* {{{ php_apache_flag_handler_ex
 */
static CONST_PREFIX char *php_apache_flag_handler_ex(cmd_parms *cmd, HashTable *conf, char *arg1, char *arg2, int mode)
{
	char bool_val[2];

	if (!strcasecmp(arg2, "On") || (arg2[0] == '1' && arg2[1] == '\0')) {
		bool_val[0] = '1';
	} else {
		bool_val[0] = '0';
	}
	bool_val[1] = 0;
	
	return php_apache_value_handler_ex(cmd, conf, arg1, bool_val, mode);
}
/* }}} */

/* {{{ php_apache_flag_handler
 */
static CONST_PREFIX char *php_apache_flag_handler(cmd_parms *cmd, HashTable *conf, char *arg1, char *arg2)
{
	return php_apache_flag_handler_ex(cmd, conf, arg1, arg2, PHP_INI_PERDIR);
}
/* }}} */

/* {{{ php_apache_admin_flag_handler
 */
static CONST_PREFIX char *php_apache_admin_flag_handler(cmd_parms *cmd, HashTable *conf, char *arg1, char *arg2)
{
	return php_apache_flag_handler_ex(cmd, conf, arg1, arg2, PHP_INI_SYSTEM);
}
/* }}} */

/* {{{ int php_xbithack_handler(request_rec * r)
 */
static int php_xbithack_handler(request_rec * r)
{
	HashTable *per_dir_conf;
	TSRMLS_FETCH();

	if (!(r->finfo.st_mode & S_IXUSR)) {
		r->allowed |= (1 << METHODS) - 1;
		return DECLINED;
	}
	per_dir_conf = (HashTable *) get_module_config(r->per_dir_config, &php4_module);
	if (per_dir_conf) {
		zend_hash_apply((HashTable *) per_dir_conf, (apply_func_t) php_apache_alter_ini_entries TSRMLS_CC);
	}
	if(!AP(xbithack)) {
		r->allowed |= (1 << METHODS) - 1;
		zend_try {
			zend_ini_deactivate(TSRMLS_C);
		} zend_end_try();
		return DECLINED;
	}
	return send_parsed_php(r);
}
/* }}} */

/* {{{ apache_php_module_shutdown_wrapper
 */
static void apache_php_module_shutdown_wrapper(void)
{
	apache_php_initialized = 0;
	apache_sapi_module.shutdown(&apache_sapi_module);

#if MODULE_MAGIC_NUMBER >= 19970728
	/* This function is only called on server exit if the apache API
	 * child_exit handler exists, so shutdown globally 
	 */
	sapi_shutdown();
#endif

#ifdef ZTS
	tsrm_shutdown();
#endif
}
/* }}} */

#if MODULE_MAGIC_NUMBER >= 19970728
/* {{{ php_child_exit_handler
 */
static void php_child_exit_handler(server_rec *s, pool *p)
{
/*	apache_php_initialized = 0; */
	apache_sapi_module.shutdown(&apache_sapi_module);

#ifdef ZTS
	tsrm_shutdown();
#endif
}
/* }}} */
#endif

/* {{{ void php_init_handler(server_rec *s, pool *p)
 */
static void php_init_handler(server_rec *s, pool *p)
{
	register_cleanup(p, NULL, (void (*)(void *))apache_php_module_shutdown_wrapper, (void (*)(void *))php_module_shutdown_for_exec);
	if (!apache_php_initialized) {
		apache_php_initialized = 1;
#ifdef ZTS
		tsrm_startup(1, 1, 0, NULL);
#endif
		sapi_startup(&apache_sapi_module);
		php_apache_startup(&apache_sapi_module);
	}
#if MODULE_MAGIC_NUMBER >= 19980527
	{
		TSRMLS_FETCH();
		if (PG(expose_php)) {
			ap_add_version_component("PHP/" PHP_VERSION);
		}
	}
#endif
}
/* }}} */

/* {{{ handler_rec php_handlers[]
 */
handler_rec php_handlers[] =
{
	{"application/x-httpd-php", send_parsed_php},
	{"application/x-httpd-php-source", send_parsed_php_source},
	{"text/html", php_xbithack_handler},
	{NULL}
};
/* }}} */

/* {{{ command_rec php_commands[]
 */
command_rec php_commands[] =
{
	{"php_value",		php_apache_value_handler, NULL, OR_OPTIONS, TAKE2, "PHP Value Modifier"},
	{"php_flag",		php_apache_flag_handler, NULL, OR_OPTIONS, TAKE2, "PHP Flag Modifier"},
	{"php_admin_value",	php_apache_admin_value_handler, NULL, ACCESS_CONF|RSRC_CONF, TAKE2, "PHP Value Modifier (Admin)"},
	{"php_admin_flag",	php_apache_admin_flag_handler, NULL, ACCESS_CONF|RSRC_CONF, TAKE2, "PHP Flag Modifier (Admin)"},
	{NULL}
};
/* }}} */

/* {{{ odule MODULE_VAR_EXPORT php4_module
 */
module MODULE_VAR_EXPORT php4_module =
{
	STANDARD_MODULE_STUFF,
	php_init_handler,			/* initializer */
	php_create_dir,				/* per-directory config creator */
	php_merge_dir,				/* dir merger */
	NULL,						/* per-server config creator */
	NULL, 						/* merge server config */
	php_commands,				/* command table */
	php_handlers,				/* handlers */
	NULL,						/* filename translation */
	NULL,						/* check_user_id */
	NULL,						/* check auth */
	NULL,						/* check access */
	NULL,						/* type_checker */
	NULL,						/* fixups */
	NULL						/* logger */
#if MODULE_MAGIC_NUMBER >= 19970103
	, NULL						/* header parser */
#endif
#if MODULE_MAGIC_NUMBER >= 19970719
	, NULL             			/* child_init */
#endif
#if MODULE_MAGIC_NUMBER >= 19970728
	, php_child_exit_handler		/* child_exit */
#endif
#if MODULE_MAGIC_NUMBER >= 19970902
	, NULL						/* post read-request */
#endif
};
/* }}} */

/*
 * Local variables:
 * tab-width: 4
 * c-basic-offset: 4
 * End:
 * vim600: sw=4 ts=4 fdm=marker
 * vim<600: sw=4 ts=4
 */