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yaf_dispatcher.c
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yaf_dispatcher.c
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/*
+----------------------------------------------------------------------+
| Yet Another Framework |
+----------------------------------------------------------------------+
| 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 |
| [email protected] so we can mail you a copy immediately. |
+----------------------------------------------------------------------+
| Author: Xinchen Hui <[email protected]> |
+----------------------------------------------------------------------+
*/
/* $Id: yaf_dispatcher.c 328978 2013-01-04 10:41:50Z laruence $ */
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include "php.h"
#include "php_ini.h"
#include "main/SAPI.h"
#include "Zend/zend_API.h"
#include "Zend/zend_interfaces.h"
#include "php_yaf.h"
#include "yaf_namespace.h"
#include "yaf_dispatcher.h"
#include "yaf_controller.h"
#include "yaf_action.h"
#include "yaf_application.h"
#include "yaf_view.h"
#include "yaf_response.h"
#include "yaf_loader.h"
#include "yaf_router.h"
#include "yaf_request.h"
#include "yaf_config.h"
#include "yaf_plugin.h"
#include "yaf_exception.h"
zend_class_entry * yaf_dispatcher_ce;
/** {{{ ARG_INFO
*/
ZEND_BEGIN_ARG_INFO_EX(yaf_dispatcher_void_arginfo, 0, 0, 0)
ZEND_END_ARG_INFO()
ZEND_BEGIN_ARG_INFO_EX(yaf_dispatcher_dispatch_arginfo, 0, 0, 1)
ZEND_ARG_INFO(0, request)
ZEND_END_ARG_INFO()
ZEND_BEGIN_ARG_INFO_EX(yaf_dispatcher_seterrhdler_arginfo, 0, 0, 2)
ZEND_ARG_INFO(0, callback)
ZEND_ARG_INFO(0, error_types)
ZEND_END_ARG_INFO()
ZEND_BEGIN_ARG_INFO_EX(yaf_dispatcher_flush_arginfo, 0, 0, 1)
ZEND_ARG_INFO(0, flag)
ZEND_END_ARG_INFO()
ZEND_BEGIN_ARG_INFO_EX(yaf_dispatcher_regplugin_arginfo, 0, 0, 1)
ZEND_ARG_INFO(0, plugin)
ZEND_END_ARG_INFO()
ZEND_BEGIN_ARG_INFO_EX(yaf_dispatcher_setrequest_arginfo, 0, 0, 1)
ZEND_ARG_INFO(0, request)
ZEND_END_ARG_INFO()
ZEND_BEGIN_ARG_INFO_EX(yaf_dispatcher_throwex_arginfo, 0, 0, 0)
ZEND_ARG_INFO(0, flag)
ZEND_END_ARG_INFO()
ZEND_BEGIN_ARG_INFO_EX(yaf_dispatcher_catchex_arginfo, 0, 0, 0)
ZEND_ARG_INFO(0, flag)
ZEND_END_ARG_INFO()
ZEND_BEGIN_ARG_INFO_EX(yaf_dispatcher_autorender_arginfo, 0, 0, 1)
ZEND_ARG_INFO(0, flag)
ZEND_END_ARG_INFO()
ZEND_BEGIN_ARG_INFO_EX(yaf_dispatcher_returnresp_arginfo, 0, 0, 1)
ZEND_ARG_INFO(0, flag)
ZEND_END_ARG_INFO()
ZEND_BEGIN_ARG_INFO_EX(yaf_dispatcher_initview_arginfo, 0, 0, 1)
ZEND_ARG_INFO(0, templates_dir)
ZEND_ARG_ARRAY_INFO(0, options, 1)
ZEND_END_ARG_INFO()
ZEND_BEGIN_ARG_INFO_EX(yaf_dispatcher_setview_arginfo, 0, 0, 1)
ZEND_ARG_INFO(0, view)
ZEND_END_ARG_INFO()
ZEND_BEGIN_ARG_INFO_EX(yaf_dispatcher_setctrl_arginfo, 0, 0, 1)
ZEND_ARG_INFO(0, controller)
ZEND_END_ARG_INFO()
ZEND_BEGIN_ARG_INFO_EX(yaf_dispatcher_setmodule_arginfo, 0, 0, 1)
ZEND_ARG_INFO(0, module)
ZEND_END_ARG_INFO()
ZEND_BEGIN_ARG_INFO_EX(yaf_dispatcher_setaction_arginfo, 0, 0, 1)
ZEND_ARG_INFO(0, action)
ZEND_END_ARG_INFO()
/* }}} */
/** {{{ yaf_dispatcher_t * yaf_dispatcher_instance(zval *this_ptr TSRMLS_DC)
* 类的__construct函数，单例模式
*/
yaf_dispatcher_t * yaf_dispatcher_instance(yaf_dispatcher_t *this_ptr TSRMLS_DC) {
zval *plugins;
yaf_router_t *router;
yaf_dispatcher_t *instance;
instance = zend_read_static_property(yaf_dispatcher_ce, ZEND_STRL(YAF_DISPATCHER_PROPERTY_NAME_INSTANCE), 1 TSRMLS_CC);
if (IS_OBJECT == Z_TYPE_P(instance)
&& instanceof_function(Z_OBJCE_P(instance), yaf_dispatcher_ce TSRMLS_CC)) {
return instance;
}
if (this_ptr) {
instance = this_ptr;
return this_ptr;
} else {
instance = NULL;
MAKE_STD_ZVAL(instance);
object_init_ex(instance, yaf_dispatcher_ce);
}
/** unecessary yet
MAKE_STD_ZVAL(args);
array_init(args);
yaf_update_property(instance, YAF_DISPATCHER_PROPERTY_NAME_ARGS, args);
*/
MAKE_STD_ZVAL(plugins);
array_init(plugins);
zend_update_property(yaf_dispatcher_ce, instance, ZEND_STRL(YAF_DISPATCHER_PROPERTY_NAME_PLUGINS), plugins TSRMLS_CC);
zval_ptr_dtor(&plugins);
router = yaf_router_instance(NULL TSRMLS_CC);
zend_update_property(yaf_dispatcher_ce, instance, ZEND_STRL(YAF_DISPATCHER_PROPERTY_NAME_ROUTER), router TSRMLS_CC);
zend_update_property_string(yaf_dispatcher_ce, instance, ZEND_STRL(YAF_DISPATCHER_PROPERTY_NAME_MODULE), YAF_G(default_module) TSRMLS_CC);
zend_update_property_string(yaf_dispatcher_ce, instance, ZEND_STRL(YAF_DISPATCHER_PROPERTY_NAME_CONTROLLER), YAF_G(default_controller) TSRMLS_CC);
zend_update_property_string(yaf_dispatcher_ce, instance, ZEND_STRL(YAF_DISPATCHER_PROPERTY_NAME_ACTION), YAF_G(default_action) TSRMLS_CC);
zend_update_static_property(yaf_dispatcher_ce, ZEND_STRL(YAF_DISPATCHER_PROPERTY_NAME_INSTANCE), instance TSRMLS_CC);
zval_ptr_dtor(&router);
return instance;
}
/* }}} */
/** {{{ static void yaf_dispatcher_get_call_parameters(zend_class_entry *request_ce, yaf_request_t *request, zend_function *fptr, zval ****params, uint *count TSRMLS_DC)
* 获得当前method需要获得的参数
*/
static void yaf_dispatcher_get_call_parameters(zend_class_entry *request_ce, yaf_request_t *request, zend_function *fptr, zval ****params, uint *count TSRMLS_DC) {
zval *args, **arg;
zend_arg_info *arg_info;
uint current;
HashTable *params_ht;
/* $args = Yaf_Request_Abstract::$params */
args = zend_read_property(request_ce, request, ZEND_STRL(YAF_REQUEST_PROPERTY_NAME_PARAMS), 1 TSRMLS_CC);
params_ht = Z_ARRVAL_P(args);
arg_info = fptr->common.arg_info;
*params = safe_emalloc(sizeof(zval **), fptr->common.num_args, 0);
for (current = 0;current < fptr->common.num_args; current++, arg_info++) {
if (zend_hash_find(params_ht, arg_info->name, arg_info->name_len + 1, (void **)&arg) == SUCCESS) {
(*params)[current] = arg;
(*count)++;
} else {
char *key;
uint keylen;
ulong idx, llen;
arg = NULL;
llen = arg_info->name_len + 1;
/* since we need search ignoring case, can't use zend_hash_find */
for(zend_hash_internal_pointer_reset(params_ht);
zend_hash_has_more_elements(params_ht) == SUCCESS;
zend_hash_move_forward(params_ht)) {
if (zend_hash_get_current_key_ex(params_ht, &key, &keylen, &idx, 0, NULL) == HASH_KEY_IS_STRING) {
if (keylen == llen && !strncasecmp(key, arg_info->name, keylen)) {
if (zend_hash_get_current_data(params_ht, (void**)&arg) == SUCCESS) {
/* return when we find first match, there is a trap
* when multi different parameters in different case presenting in params_ht
* only the first take affect
*/
(*params)[current] = arg;
(*count)++;
break;
}
}
}
}
if (NULL == arg) {
break;
}
}
}
}
/* }}} */
/** {{{ static yaf_view_t * yaf_dispatcher_init_view(yaf_dispatcher_t *dispatcher, zval *tpl_dir, zval *options TSRMLS_DC)
* 在dispatcher中实例化视图引擎
*/
static yaf_view_t * yaf_dispatcher_init_view(yaf_dispatcher_t *dispatcher, zval *tpl_dir, zval *options TSRMLS_DC) {
/* $view = $this->_view */
yaf_view_t *view = zend_read_property(yaf_dispatcher_ce, dispatcher, ZEND_STRL(YAF_DISPATCHER_PROPERTY_NAME_VIEW), 1 TSRMLS_CC);
if (view && IS_OBJECT == Z_TYPE_P(view)
&& instanceof_function(Z_OBJCE_P(view), yaf_view_interface_ce TSRMLS_CC)) {
/* 已经初始化视图引擎则返回试图引擎实例化后的对象 */
return view;
}
/* 实例化视图引擎 */
view = yaf_view_instance(NULL, tpl_dir, options TSRMLS_CC);
if (!view) {
return NULL;
}
/* $this->_view = $view */
zend_update_property(yaf_dispatcher_ce, dispatcher, ZEND_STRL(YAF_DISPATCHER_PROPERTY_NAME_VIEW), view TSRMLS_CC);
zval_ptr_dtor(&view);
return view;
}
/* }}} */
/** {{{ static inline void yaf_dispatcher_fix_default(yaf_dispatcher_t *dispatcher, yaf_request_t *request TSRMLS_DC)
* 检测路由的module、controller、action名称是否合法，不合法的用默认代替，合法的进行需要的响应的转换工作
*/
static inline void yaf_dispatcher_fix_default(yaf_dispatcher_t *dispatcher, yaf_request_t *request TSRMLS_DC) {
zval *module, *controller, *action;
/* $module = Yaf_Request::$module */
module = zend_read_property(yaf_request_ce, request, ZEND_STRL(YAF_REQUEST_PROPERTY_NAME_MODULE), 1 TSRMLS_CC);
/* $action = Yaf_Request::$action */
action = zend_read_property(yaf_request_ce, request, ZEND_STRL(YAF_REQUEST_PROPERTY_NAME_ACTION), 1 TSRMLS_CC);
/* $controller = Yaf_Request::$controller */
controller = zend_read_property(yaf_request_ce, request, ZEND_STRL(YAF_REQUEST_PROPERTY_NAME_CONTROLLER), 1 TSRMLS_CC);
/* 1.设置路由的module */
if (!module || Z_TYPE_P(module) != IS_STRING || !Z_STRLEN_P(module)) { /* module名称非法 */
/* $default_module = $this->_default_module */
zval *default_module = zend_read_property(yaf_dispatcher_ce, dispatcher, ZEND_STRL(YAF_DISPATCHER_PROPERTY_NAME_MODULE), 1 TSRMLS_CC);
/* Yaf_Request::$module = $default_module */
zend_update_property(yaf_request_ce, request, ZEND_STRL(YAF_REQUEST_PROPERTY_NAME_MODULE), default_module TSRMLS_CC);
} else { /* module名称合法 */
/* tolower */
char *p = zend_str_tolower_dup(Z_STRVAL_P(module), Z_STRLEN_P(module));
/* toupper */
*p = toupper(*p);
/* Yaf_Request::$module = $p */
zend_update_property_stringl(yaf_request_ce, request, ZEND_STRL(YAF_REQUEST_PROPERTY_NAME_MODULE), p, Z_STRLEN_P(module) TSRMLS_CC);
efree(p);
}
/* 2.设置路由的controller */
if (!controller || Z_TYPE_P(controller) != IS_STRING || !Z_STRLEN_P(controller)) { /* controller名称非法 */
/* $default_controller = $this->_default_controller */
zval *default_controller = zend_read_property(yaf_dispatcher_ce, dispatcher, ZEND_STRL(YAF_DISPATCHER_PROPERTY_NAME_CONTROLLER), 1 TSRMLS_CC);
/* Yaf_Request::$controller = $default_controller */
zend_update_property(yaf_request_ce, request, ZEND_STRL(YAF_REQUEST_PROPERTY_NAME_CONTROLLER), default_controller TSRMLS_CC);
} else { /* controller名称合法 */
char *q, *p = zend_str_tolower_dup(Z_STRVAL_P(controller), Z_STRLEN_P(controller));
/**
* upper controller name
* eg: Index_sub -> Index_Sub
*/
q = p;
*q = toupper(*q);
while (*q != '\0') {
if (*q == '_'
#ifdef YAF_HAVE_NAMESPACE
|| *q == '\\'
#endif
) {
if (*(q+1) != '\0') {
*(q+1) = toupper(*(q+1));
q++;
}
}
q++;
}
/* Yaf_Request::$controller = $p */
zend_update_property_stringl(yaf_request_ce, request, ZEND_STRL(YAF_REQUEST_PROPERTY_NAME_CONTROLLER), p, Z_STRLEN_P(controller) TSRMLS_CC);
efree(p);
}
/* 3.设置路由的action */
if (!action || Z_TYPE_P(action) != IS_STRING || !Z_STRLEN_P(action)) { //action名称非法
/* $default_action = $this->_default_action */
zval *default_action = zend_read_property(yaf_dispatcher_ce, dispatcher, ZEND_STRL(YAF_DISPATCHER_PROPERTY_NAME_ACTION), 1 TSRMLS_CC);
/* Yaf_Request::$action = $default_action */
zend_update_property(yaf_request_ce, request, ZEND_STRL(YAF_REQUEST_PROPERTY_NAME_ACTION), default_action TSRMLS_CC);
} else { //action名称合法
/* Yaf_Request::$action = strtolower($action) */
char *p = zend_str_tolower_dup(Z_STRVAL_P(action), Z_STRLEN_P(action));
zend_update_property_stringl(yaf_request_ce, request, ZEND_STRL(YAF_REQUEST_PROPERTY_NAME_ACTION), p, Z_STRLEN_P(action) TSRMLS_CC);
efree(p);
}
}
/* }}} */
/** {{{int yaf_dispatcher_set_request(yaf_dispatcher_t *dispatcher, yaf_request_t *request TSRMLS_DC)
*/
int yaf_dispatcher_set_request(yaf_dispatcher_t *dispatcher, yaf_request_t *request TSRMLS_DC) {
if (request) {
/* $this->_request = $request */
zend_update_property(yaf_dispatcher_ce, dispatcher, ZEND_STRL(YAF_DISPATCHER_PROPERTY_NAME_REQUEST), request TSRMLS_CC);
return 1;
}
return 0;
}
/* }}} */
/** {{{ zend_class_entry * yaf_dispatcher_get_controller(char *app_dir, char *module, char *controller, int len, int def_module TSRMLS_DC)
* 拼装得到controller的文件路径，然后注册类
*/
zend_class_entry * yaf_dispatcher_get_controller(char *app_dir, char *module, char *controller, int len, int def_module TSRMLS_DC) {
char *directory = NULL;
int directory_len = 0;
/* 分为默认module和不是默认module的情况来拼装controllers文件夹的路径 */
if (def_module) {
/* /home/www/sample.com/application/controllers */
directory_len = spprintf(&directory, 0, "%s%c%s", app_dir, DEFAULT_SLASH, YAF_CONTROLLER_DIRECTORY_NAME);
} else {
/* /home/www/sample.com/application/modules/module1/controllers */
directory_len = spprintf(&directory, 0, "%s%c%s%c%s%c%s", app_dir, DEFAULT_SLASH,
YAF_MODULE_DIRECTORY_NAME, DEFAULT_SLASH, module, DEFAULT_SLASH, YAF_CONTROLLER_DIRECTORY_NAME);
}
if (directory_len) {
char *class = NULL;
char *class_lowercase = NULL;
int class_len = 0;
zend_class_entry **ce = NULL;
/* 根据controller名以及框架的前后缀还有类名分隔符来拼装类名 */
if (YAF_G(name_suffix)) {
class_len = spprintf(&class, 0, "%s%s%s", controller, YAF_G(name_separator), "Controller");
} else {
class_len = spprintf(&class, 0, "%s%s%s", "Controller", YAF_G(name_separator), controller);
}
/**
* $class_lowercase = strtolower($class)
* 在Zend中类名和其成员函数是小写的
*/
class_lowercase = zend_str_tolower_dup(class, class_len);
/* EG(class_table)是一个全局变量, 所有的zend_class_entry定义都注册到它里面 */
if (zend_hash_find(EG(class_table), class_lowercase, class_len + 1, (void *)&ce) != SUCCESS) { /* 类还没有注册，执行注册操作 */
if (!yaf_internal_autoload(controller, len, &directory TSRMLS_CC)) { /* 接收文件名和文件所在文件夹路径，拼装出完整文件的路径，然后对文件是否存在的判断，包含，解析以及执行过程 */
yaf_trigger_error(YAF_ERR_NOTFOUND_CONTROLLER TSRMLS_CC, "Failed opening controller script %s: %s", directory, strerror(errno));
efree(class);
efree(class_lowercase);
efree(directory);
return NULL;
} else if (zend_hash_find(EG(class_table), class_lowercase, class_len + 1, (void **) &ce) != SUCCESS) { /* 注册成功后，EG(class_table)中还是不存在 */
yaf_trigger_error(YAF_ERR_AUTOLOAD_FAILED TSRMLS_CC, "Could not find class %s in controller script %s", class, directory);
efree(class);
efree(class_lowercase);
efree(directory);
return 0;
} else if (!instanceof_function(*ce, yaf_controller_ce TSRMLS_CC)) { /* 注册成功了，但是注册的类不是继承自Yaf_Controller_Abstract */
yaf_trigger_error(YAF_ERR_TYPE_ERROR TSRMLS_CC, "Controller must be an instance of %s", yaf_controller_ce->name);
efree(class);
efree(class_lowercase);
efree(directory);
return 0;
}
}
efree(class);
efree(class_lowercase);
efree(directory);
return *ce;
}
return NULL;
}
/* }}} */
/** {{{ zend_class_entry * yaf_dispatcher_get_action(char *app_dir, yaf_controller_t *controller, char *module, int def_module, char *action, int len TSRMLS_DC)
* 拼装得到action的文件路径，然后进行class和method的注册
*/
zend_class_entry * yaf_dispatcher_get_action(char *app_dir, yaf_controller_t *controller, char *module, int def_module, char *action, int len TSRMLS_DC) {
zval **ppaction, *actions_map;
/* $actions_map = Yaf_Controller_Abstract::$actions */
actions_map = zend_read_property(Z_OBJCE_P(controller), controller, ZEND_STRL(YAF_CONTROLLER_PROPERTY_NAME_ACTIONS), 1 TSRMLS_CC);
if (IS_ARRAY == Z_TYPE_P(actions_map)) { //数组
if (zend_hash_find(Z_ARRVAL_P(actions_map), action, len + 1, (void **)&ppaction) == SUCCESS) { //action查找成功
char *action_path;
uint action_path_len;
/* 拼装action路径 */
action_path_len = spprintf(&action_path, 0, "%s%c%s", app_dir, DEFAULT_SLASH, Z_STRVAL_PP(ppaction));
/* 加载文件并编译执行 */
if (yaf_loader_import(action_path, action_path_len, 0 TSRMLS_CC)) {
zend_class_entry **ce;
char *class, *class_lowercase;
uint class_len;
char *action_upper = estrndup(action, len);
*(action_upper) = toupper(*action_upper);
if (YAF_G(name_suffix)) { //Action后缀
class_len = spprintf(&class, 0, "%s%s%s", action_upper, YAF_G(name_separator), "Action");
} else { //Action前缀
class_len = spprintf(&class, 0, "%s%s%s", "Action", YAF_G(name_separator), action_upper);
}
class_lowercase = zend_str_tolower_dup(class, class_len);
/* 检验controller类注册 */
if (zend_hash_find(EG(class_table), class_lowercase, class_len + 1, (void **) &ce) == SUCCESS) { //查找成功，类已经注册，执行完毕，释放资源
efree(action_path);
efree(action_upper);
efree(class_lowercase);
if (instanceof_function(*ce, yaf_action_ce TSRMLS_CC)) {
efree(class);
return *ce;
} else {
yaf_trigger_error(YAF_ERR_TYPE_ERROR TSRMLS_CC, "Action %s must extends from %s", class, yaf_action_ce->name);
efree(class);
}
} else {
yaf_trigger_error(YAF_ERR_NOTFOUND_ACTION TSRMLS_CC, "Could not find action %s in %s", class, action_path);
}
efree(action_path);
efree(action_upper);
efree(class);
efree(class_lowercase);
} else {
yaf_trigger_error(YAF_ERR_NOTFOUND_ACTION TSRMLS_CC, "Failed opening action script %s: %s", action_path, strerror(errno));
efree(action_path);
}
} else {
yaf_trigger_error(YAF_ERR_NOTFOUND_ACTION TSRMLS_CC, "There is no method %s%s in %s::$%s",
action, "Action", Z_OBJCE_P(controller)->name, YAF_CONTROLLER_PROPERTY_NAME_ACTIONS);
}
} else //不是数组,正常情况下为数组值
/* {{{ This only effects internally */
if (YAF_G(st_compatible)) { //开启兼容模式
char *directory, *class, *class_lowercase, *p;
uint class_len;
zend_class_entry **ce;
char *action_upper = estrndup(action, len);
/**
* upper Action Name
* eg: Index_sub -> Index_Sub
*/
p = action_upper;
*(p) = toupper(*p);
while (*p != '\0') {
if (*p == '_'
#ifdef YAF_HAVE_NAMESPACE
|| *p == '\\'
#endif
) {
if (*(p+1) != '\0') {
*(p+1) = toupper(*(p+1));
p++;
}
}
p++;
}
/* 拼装module路径 */
if (def_module) {
spprintf(&directory, 0, "%s%c%s", app_dir, DEFAULT_SLASH, "actions");
} else {
spprintf(&directory, 0, "%s%c%s%c%s%c%s", app_dir, DEFAULT_SLASH,
"modules", DEFAULT_SLASH, module, DEFAULT_SLASH, "actions");
}
/* 通过前后缀拼装action完整名称 */
if (YAF_G(name_suffix)) {
class_len = spprintf(&class, 0, "%s%s%s", action_upper, YAF_G(name_separator), "Action");
} else {
class_len = spprintf(&class, 0, "%s%s%s", "Action", YAF_G(name_separator), action_upper);
}
/* 转换小写 */
class_lowercase = zend_str_tolower_dup(class, class_len);
if (zend_hash_find(EG(class_table), class_lowercase, class_len + 1, (void *)&ce) != SUCCESS) { //注册类中查找类名
if (!yaf_internal_autoload(action_upper, len, &directory TSRMLS_CC)) { //加载承载action的文件失败
yaf_trigger_error(YAF_ERR_NOTFOUND_ACTION TSRMLS_CC, "Failed opening action script %s: %s", directory, strerror(errno));
efree(class);
efree(action_upper);
efree(class_lowercase);
efree(directory);
return NULL;
} else if (zend_hash_find(EG(class_table), class_lowercase, class_len + 1, (void **) &ce) != SUCCESS) { //成功加载，但是还是在注册哈希表中没找到
yaf_trigger_error(YAF_ERR_AUTOLOAD_FAILED TSRMLS_CC, "Could find class %s in action script %s", class, directory);
efree(class);
efree(action_upper);
efree(class_lowercase);
efree(directory);
return NULL;
} else if (!instanceof_function(*ce, yaf_action_ce TSRMLS_CC)) { /* 不是继承自Yaf_Action_Abstract */
yaf_trigger_error(YAF_ERR_TYPE_ERROR TSRMLS_CC, "Action must be an instance of %s", yaf_action_ce->name);
efree(class);
efree(action_upper);
efree(class_lowercase);
efree(directory);
return NULL;
}
}
efree(class);
efree(action_upper);
efree(class_lowercase);
efree(directory);
return *ce;
} else
/* }}} */
{
yaf_trigger_error(YAF_ERR_NOTFOUND_ACTION TSRMLS_CC, "There is no method %s%s in %s", action, "Action", Z_OBJCE_P(controller)->name);
}
return NULL;
}
/* }}} */
/** {{{ int yaf_dispatcher_handle(yaf_dispatcher_t *dispatcher, yaf_request_t *request, yaf_response_t *response, yaf_view_t *view TSRMLS_DC)
* 进行controller文件的加载、然后执行action，最后根据配置来进行模板渲染以及输出
*/
int yaf_dispatcher_handle(yaf_dispatcher_t *dispatcher, yaf_request_t *request, yaf_response_t *response, yaf_view_t *view TSRMLS_DC) {
zend_class_entry *request_ce;
char *app_dir = YAF_G(directory);
request_ce = Z_OBJCE_P(request);
/* Yaf_Request::dispatched = 1 */
yaf_request_set_dispatched(request, 1 TSRMLS_CC);
if (!app_dir) { /* 没设置application.directory */
yaf_trigger_error(YAF_ERR_STARTUP_FAILED TSRMLS_CC, "%s requires %s(which set the application.directory) to be initialized first",
yaf_dispatcher_ce->name, yaf_application_ce->name);
return 0;
} else {
int is_def_module = 0;
/* int is_def_ctr = 0; */
zval *module, *controller, *dmodule, *dcontroller, *instantly_flush;
zend_class_entry *ce;
yaf_controller_t *executor;
zend_function *fptr;
/**
* $module = Yaf_Request::$module
* $controller = Yaf_Request::$controller
*/
module = zend_read_property(request_ce, request, ZEND_STRL(YAF_REQUEST_PROPERTY_NAME_MODULE), 1 TSRMLS_CC);
controller = zend_read_property(request_ce, request, ZEND_STRL(YAF_REQUEST_PROPERTY_NAME_CONTROLLER), 1 TSRMLS_CC);
/**
* $dmodule = $this->_default_module
* $dcontroller = $this->_default_controller
*/
dmodule = zend_read_property(yaf_dispatcher_ce, dispatcher, ZEND_STRL(YAF_DISPATCHER_PROPERTY_NAME_MODULE), 1 TSRMLS_CC);
dcontroller = zend_read_property(yaf_dispatcher_ce, dispatcher, ZEND_STRL(YAF_DISPATCHER_PROPERTY_NAME_CONTROLLER), 1 TSRMLS_CC);
/* 从字符串角度和已经注册了的module来检测当前的module是否合法 */
if (Z_TYPE_P(module) != IS_STRING
|| !Z_STRLEN_P(module)) {
yaf_trigger_error(YAF_ERR_DISPATCH_FAILED TSRMLS_CC, "Unexcepted a empty module name");
return 0;
} else if (!yaf_application_is_module_name(Z_STRVAL_P(module), Z_STRLEN_P(module) TSRMLS_CC)) {
yaf_trigger_error(YAF_ERR_NOTFOUND_MODULE TSRMLS_CC, "There is no module %s", Z_STRVAL_P(module));
return 0;
}
/* 以合法字符串方式来检验controller */
if (Z_TYPE_P(controller) != IS_STRING
|| !Z_STRLEN_P(controller)) {
yaf_trigger_error(YAF_ERR_DISPATCH_FAILED TSRMLS_CC, "Unexcepted a empty controller name");
return 0;
}
/* 检测传进来的module名是否为默认的module名称 */
if(strncasecmp(Z_STRVAL_P(dmodule), Z_STRVAL_P(module), Z_STRLEN_P(module)) == 0) {
is_def_module = 1;
}
/* if (strncasecmp(Z_STRVAL_P(dcontroller), Z_STRVAL_P(controller), Z_STRLEN_P(controller)) == 0) {
is_def_ctr = 1;
} */
/* 注册controller */
ce = yaf_dispatcher_get_controller(app_dir, Z_STRVAL_P(module), Z_STRVAL_P(controller), Z_STRLEN_P(controller), is_def_module TSRMLS_CC);
if (!ce) {
return 0;
} else { /* controller注册成功 */
zval *action, *render, *ret = NULL;
char *action_lower, *func_name, *view_dir;
uint func_name_len;
yaf_controller_t *icontroller;
/* $icontroller = new Controller() */
MAKE_STD_ZVAL(icontroller);
object_init_ex(icontroller, ce);
/* cause controller's constructor is a final method, so it must be a internal function
do {
zend_function *constructor = NULL;
constructor = Z_OBJ_HT_P(exec_ctr)->get_constructor(exec_ctr TSRMLS_CC);
if (constructor != NULL) {
if (zend_call_method_with_2_params(&exec_ctr, *ce
, &constructor, NULL, &ret, request, response) == NULL) {
yaf_trigger_error(YAF_ERR_CALL_FAILED, "function call for %s::__construct failed", (*ce)->name);
return 0;
}
}
} while(0);
*/
/* Yaf_Controller_Abstract::__construct */
yaf_controller_construct(ce, icontroller, request, response, view, NULL TSRMLS_CC);
if (EG(exception)) { //异常处理
zval_ptr_dtor(&icontroller);
return 0;
}
/* view template directory for application, please notice that view engine's directory has high priority */
/* 拼装模板文件夹的路径 */
if (is_def_module) {
/* /home/www/sample.com/application/views */
//spprintf(&view_dir, 0, "%s/%s", app_dir ,"views");
spprintf(&view_dir, 0, "%s%c%s", app_dir , DEFAULT_SLASH, "views");
} else {
/* /home/www/sample.com/application/ modules / module1 /views */
//spprintf(&view_dir, 0, "%s/%s/%s/%s", app_dir, "modules", Z_STRVAL_P(module), "views");
spprintf(&view_dir, 0, "%s%c%s%c%s%c%s", app_dir, DEFAULT_SLASH, "modules", DEFAULT_SLASH, Z_STRVAL_P(module), DEFAULT_SLASH, "views");
}
if (YAF_G(view_directory)) {
efree(YAF_G(view_directory));
}
YAF_G(view_directory) = view_dir;
/* $icontroller->_name = Yaf_Request::$controller */
zend_update_property(ce, icontroller, ZEND_STRL(YAF_CONTROLLER_PROPERTY_NAME_NAME), controller TSRMLS_CC);
/* $action = Yaf_Request::$action */
action = zend_read_property(request_ce, request, ZEND_STRL(YAF_REQUEST_PROPERTY_NAME_ACTION), 1 TSRMLS_CC);
/* $action_lower = strtolower($action) */
action_lower = zend_str_tolower_dup(Z_STRVAL_P(action), Z_STRLEN_P(action));
/* because the action might call the forward to override the old action */
Z_ADDREF_P(action);
/* action名称也是全小写 */
func_name_len = spprintf(&func_name, 0, "%s%s", action_lower, "action");
efree(action_lower);
if (zend_hash_find(&((ce)->function_table), func_name, func_name_len + 1, (void **)&fptr) == SUCCESS) {
/* 在注册的controller的函数表中查找成功 */
uint count = 0;
zval ***call_args = NULL;
ret = NULL;
executor = icontroller;
if (fptr->common.num_args) {
zval *method_name;
/* 获取当前method的参数和参数个数 */
yaf_dispatcher_get_call_parameters(request_ce, request, fptr, &call_args, &count TSRMLS_CC);
MAKE_STD_ZVAL(method_name);
ZVAL_STRINGL(method_name, func_name, func_name_len, 0);
/* 调用method并传参 */
call_user_function_ex(&(ce)->function_table, &icontroller, method_name, &ret, count, call_args, 1, NULL TSRMLS_CC);
efree(method_name);
efree(call_args);
} else {
/* 没有传递参数，直接调用method */
zend_call_method(&icontroller, ce, NULL, func_name, func_name_len, &ret, 0, NULL, NULL TSRMLS_CC);
}
efree(func_name);
if (!ret) {
zval_ptr_dtor(&action);
zval_ptr_dtor(&icontroller);
return 0;
}
/* Why:返回值为false的情况下返回1呢 */
if ((Z_TYPE_P(ret) == IS_BOOL
&& !Z_BVAL_P(ret))) {
/* no auto-render */
zval_ptr_dtor(&ret);
zval_ptr_dtor(&action);
zval_ptr_dtor(&icontroller);
return 1;
}
zval_ptr_dtor(&ret);
} else if ((ce = yaf_dispatcher_get_action(app_dir, icontroller,
Z_STRVAL_P(module), is_def_module, Z_STRVAL_P(action), Z_STRLEN_P(action) TSRMLS_CC)) //在已经注册的里面查找失败后重新进行加载
&& (zend_hash_find(&(ce)->function_table, YAF_ACTION_EXECUTOR_NAME,
sizeof(YAF_ACTION_EXECUTOR_NAME), (void **)&fptr) == SUCCESS)) {
zval ***call_args;
yaf_action_t *iaction;
uint count = 0;
efree(func_name);
/* $iaction = new Yaf_Action_Abstract() */
MAKE_STD_ZVAL(iaction);
object_init_ex(iaction, ce);
/* Yaf_Action_Abstract::__construct() */
yaf_controller_construct(ce, iaction, request, response, view, NULL TSRMLS_CC);
executor = iaction;
/* $iaction->_name = $controller */
zend_update_property(ce, iaction, ZEND_STRL(YAF_CONTROLLER_PROPERTY_NAME_NAME), controller TSRMLS_CC);
/* $iaction->_controller = $icontroller */
zend_update_property(ce, iaction, ZEND_STRL(YAF_ACTION_PROPERTY_NAME_CTRL), icontroller TSRMLS_CC);
zval_ptr_dtor(&icontroller);
if (fptr->common.num_args) { //当前action有参数传递进来
zval *method_name = NULL;
yaf_dispatcher_get_call_parameters(request_ce, request, fptr, &call_args, &count TSRMLS_CC);
MAKE_STD_ZVAL(method_name);
ZVAL_STRINGL(method_name, YAF_ACTION_EXECUTOR_NAME, sizeof(YAF_ACTION_EXECUTOR_NAME) - 1, 0);
call_user_function_ex(&(ce)->function_table, &iaction, method_name, &ret, count, call_args, 1, NULL TSRMLS_CC);
efree(method_name);
efree(call_args);
} else { //无参数传递
zend_call_method_with_0_params(&iaction, ce, NULL, "execute", &ret);
}
if (!ret) {
zval_ptr_dtor(&action);
zval_ptr_dtor(&iaction);
return 0;
}
if (( Z_TYPE_P(ret) == IS_BOOL
&& !Z_BVAL_P(ret))) {
/* no auto-render */
zval_ptr_dtor(&ret);
zval_ptr_dtor(&action);
zval_ptr_dtor(&iaction);
return 1;
}
zval_ptr_dtor(&ret);
} else {
efree(func_name);
zval_ptr_dtor(&icontroller);
return 0;
}
if (executor) {
/* controller's property can override the Dispatcher's */
int auto_render = 1;
/* $render = Yaf_Action_Abstract::$yafAutoRender */
render = zend_read_property(ce, executor, ZEND_STRL(YAF_CONTROLLER_PROPERTY_NAME_RENDER), 1 TSRMLS_CC);
/* $instantly_flush = $this->_instantly_flush */
instantly_flush = zend_read_property(yaf_dispatcher_ce, dispatcher, ZEND_STRL(YAF_DISPATCHER_PROPERTY_NAME_FLUSH), 1 TSRMLS_CC);
if (render == EG(uninitialized_zval_ptr)) {
/* $render = $this->_auto_render */
render = zend_read_property(yaf_dispatcher_ce, dispatcher, ZEND_STRL(YAF_DISPATCHER_PROPERTY_NAME_RENDER), 1 TSRMLS_CC);
/* $auto_render = (bool)$render */
auto_render = Z_BVAL_P(render);
} else if (Z_TYPE_P(render) <= IS_BOOL && !Z_BVAL_P(render)) {
auto_render = 0;
}
if (auto_render) { //开启了自动渲染
ret = NULL;
if (!Z_BVAL_P(instantly_flush)) { //没开启，有输出的时候通过Yaf_Response_Abstract来返回给用户
/* 调用Yaf_Controller_Abstract::render()进行渲染模板，然后得到渲染后的结果 */
zend_call_method_with_1_params(&executor, ce, NULL, "render", &ret, action);
zval_ptr_dtor(&executor);
if (!ret) {
zval_ptr_dtor(&action);
return 0;
} else if (IS_BOOL == Z_TYPE_P(ret) && !Z_BVAL_P(ret)) {
zval_ptr_dtor(&ret);
zval_ptr_dtor(&action);
return 0;
}
/* 渲染返回结果正常，将它放入Yaf_Response_Abstract::_body的值 */
if (Z_TYPE_P(ret) == IS_STRING && Z_STRLEN_P(ret)) {
yaf_response_alter_body(response, NULL, 0, Z_STRVAL_P(ret), Z_STRLEN_P(ret), YAF_RESPONSE_APPEND TSRMLS_CC);
}
zval_ptr_dtor(&ret);
} else { //开启了直接输出给用户
/* 直接调用Yaf_Controller_Abstract::display渲染视图模板, 并直接输出渲染结果 */
zend_call_method_with_1_params(&executor, ce, NULL, "display", &ret, action);
zval_ptr_dtor(&executor);
if (!ret) {
zval_ptr_dtor(&action);
return 0;
}
if ((Z_TYPE_P(ret) == IS_BOOL && !Z_BVAL_P(ret))) {
zval_ptr_dtor(&ret);
zval_ptr_dtor(&action);
return 0;
}
zval_ptr_dtor(&ret);
}
} else {
zval_ptr_dtor(&executor);
}
}
zval_ptr_dtor(&action);
}
return 1;
}
return 0;
}
/* }}} */
/** {{{ void yaf_dispatcher_exception_handler(yaf_dispatcher_t *dispatcher, yaf_request_t *request, yaf_response_t *response TSRMLS_DC)
* 在本文件中没用，在 yaf_exception.h中调用了
* 调用错误处理的controller和action进行错误处理
*/
void yaf_dispatcher_exception_handler(yaf_dispatcher_t *dispatcher, yaf_request_t *request, yaf_response_t *response TSRMLS_DC) {
zval *module, *controller, *action, *exception;
yaf_view_t *view;
if (YAF_G(in_exception) || !EG(exception)) {
return;
}
YAF_G(in_exception) = 1;
MAKE_STD_ZVAL(controller);
MAKE_STD_ZVAL(action);
/* $module = Yaf_Request_Abstract::$module */
module = zend_read_property(yaf_request_ce, request, ZEND_STRL(YAF_REQUEST_PROPERTY_NAME_MODULE), 1 TSRMLS_CC);
/* Yaf_Request_Abstract::$moduel不合法，使用默认的moduel了来替换 */
if (!module || Z_TYPE_P(module) != IS_STRING || !Z_STRLEN_P(module)) {
module = zend_read_property(yaf_dispatcher_ce, dispatcher, ZEND_STRL(YAF_DISPATCHER_PROPERTY_NAME_MODULE), 1 TSRMLS_CC);
zend_update_property(yaf_request_ce, request, ZEND_STRL(YAF_REQUEST_PROPERTY_NAME_MODULE), module TSRMLS_CC);
}
/* $controller = "Error" */
ZVAL_STRING(controller, YAF_ERROR_CONTROLLER, 1);
/* $action = "error" */
ZVAL_STRING(action, YAF_ERROR_ACTION, 1);
exception = EG(exception);
EG(exception) = NULL;
/* Yaf_Request_Abstract::$controller = $controller */
zend_update_property(yaf_request_ce, request, ZEND_STRL(YAF_REQUEST_PROPERTY_NAME_CONTROLLER), controller TSRMLS_CC);
/* Yaf_Request_Abstract::$action = $action */
zend_update_property(yaf_request_ce, request, ZEND_STRL(YAF_REQUEST_PROPERTY_NAME_ACTION), action TSRMLS_CC);
/* Yaf_Request_Abstract::$_exception = $exception */
zend_update_property(yaf_request_ce, request, ZEND_STRL(YAF_REQUEST_PROPERTY_NAME_EXCEPTION), exception TSRMLS_CC);
Z_DELREF_P(controller);
zval_ptr_dtor(&action);
/** use $request->getException() instand of */
if (yaf_request_set_params_single(request, ZEND_STRL("exception"), exception TSRMLS_CC)) {
zval_ptr_dtor(&exception);
} else {
/* failover to uncaught exception */
EG(exception) = exception;
return;
}
yaf_request_set_dispatched(request, 0 TSRMLS_CC); /* Yaf_Request::dispatched = 0 */
view = yaf_dispatcher_init_view(dispatcher, NULL, NULL TSRMLS_CC); //实例化视图引擎类
if (!view) {
return;
}
if (!yaf_dispatcher_handle(dispatcher, request, response, view TSRMLS_CC)) { //进行controller文件的加载、然后执行action，最后根据配置来进行模板渲染以及输出
if (EG(exception)
&& instanceof_function(Z_OBJCE_P(EG(exception)),
yaf_buildin_exceptions[YAF_EXCEPTION_OFFSET(YAF_ERR_NOTFOUND_CONTROLLER)] TSRMLS_CC)) {
zval *m = zend_read_property(yaf_dispatcher_ce, dispatcher, ZEND_STRL(YAF_DISPATCHER_PROPERTY_NAME_MODULE), 1 TSRMLS_CC);
/* failover to default module error catcher */
zend_update_property(yaf_request_ce, request, ZEND_STRL(YAF_REQUEST_PROPERTY_NAME_MODULE), m TSRMLS_CC);
zval_ptr_dtor(&EG(exception));
EG(exception) = NULL;
(void)yaf_dispatcher_handle(dispatcher, request, response, view TSRMLS_CC);
}
}
(void)yaf_response_send(response TSRMLS_CC);
YAF_EXCEPTION_ERASE_EXCEPTION();
}
/* }}} */
/** {{{ int yaf_dispatcher_route(yaf_dispatcher_t *dispatcher, yaf_request_t *request TSRMLS_DC)
* 路由执行
*/
int yaf_dispatcher_route(yaf_dispatcher_t *dispatcher, yaf_request_t *request TSRMLS_DC) {
zend_class_entry *router_ce;
/* $router = $this->_router */
yaf_router_t *router = zend_read_property(yaf_dispatcher_ce, dispatcher, ZEND_STRL(YAF_DISPATCHER_PROPERTY_NAME_ROUTER), 1 TSRMLS_CC);
if (IS_OBJECT == Z_TYPE_P(router)) {
if ((router_ce = Z_OBJCE_P(router)) == yaf_router_ce) {
/* use built-in router */
yaf_router_route(router, request TSRMLS_CC);
} else {
/* user custom router */
zval *ret = zend_call_method_with_1_params(&router, router_ce, NULL, "route", &ret, request);
if (Z_TYPE_P(ret) == IS_BOOL && Z_BVAL_P(ret) == 0) {
yaf_trigger_error(YAF_ERR_ROUTE_FAILED TSRMLS_CC, "Routing request faild");
return 0;
}
}
return 1;
}
return 0;
}
/* }}} */
/** {{{ yaf_response_t * yaf_dispatcher_dispatch(yaf_dispatcher_t *dispatcher TSRMLS_DC)
*/
yaf_response_t * yaf_dispatcher_dispatch(yaf_dispatcher_t *dispatcher TSRMLS_DC) {
zval *return_response, *plugins, *view;
yaf_response_t *response;
yaf_request_t *request;
uint nesting = YAF_G(forward_limit); //forward最大嵌套深度
/* 进行一些列初始化，初始化成员变量并且返回类自身的实例 */
response = yaf_response_instance(NULL, sapi_module.name TSRMLS_CC);
/* Yaf_Request $request = $this->_request */
request = zend_read_property(yaf_dispatcher_ce, dispatcher, ZEND_STRL(YAF_DISPATCHER_PROPERTY_NAME_REQUEST), 1 TSRMLS_CC);
/* Yaf_Plugin $plugins = $this->_plugins */
plugins = zend_read_property(yaf_dispatcher_ce, dispatcher, ZEND_STRL(YAF_DISPATCHER_PROPERTY_NAME_PLUGINS), 1 TSRMLS_CC);
/* $request也就是$this->_request的值应该为一个对象k */
if (!request || IS_OBJECT != Z_TYPE_P(request)) {
yaf_trigger_error(YAF_ERR_TYPE_ERROR TSRMLS_CC, "Expect a %s instance", yaf_request_ce->name);
zval_ptr_dtor(&response);
return NULL;
}
/* route request */
if (!yaf_request_is_routed(request TSRMLS_CC)) { /* 还没有开始执行路由 */
YAF_PLUGIN_HANDLE(plugins, YAF_PLUGIN_HOOK_ROUTESTARTUP, request, response); //routerstartup调用并执行插件
YAF_EXCEPTION_HANDLE(dispatcher, request, response); //异常处理
if (!yaf_dispatcher_route(dispatcher, request TSRMLS_CC)) { //执行路由
yaf_trigger_error(YAF_ERR_ROUTE_FAILED TSRMLS_CC, "Routing request failed");
YAF_EXCEPTION_HANDLE_NORET(dispatcher, request, response);
zval_ptr_dtor(&response);
return NULL;
}
/* 进行module/controller/action名的检验以及响应的转换 */
yaf_dispatcher_fix_default(dispatcher, request TSRMLS_CC);
YAF_PLUGIN_HANDLE(plugins, YAF_PLUGIN_HOOK_ROUTESHUTDOWN, request, response); //routershutdown调用并执行插件
YAF_EXCEPTION_HANDLE(dispatcher, request, response); //异常处理
/* Yaf_Request::$routed = 1 */
(void)yaf_request_set_routed(request, 1 TSRMLS_CC);
} else {
/* 进行module/controller/action名的检验以及响应的转换 */
yaf_dispatcher_fix_default(dispatcher, request TSRMLS_CC);
}
YAF_PLUGIN_HANDLE(plugins, YAF_PLUGIN_HOOK_LOOPSTARTUP, request, response); //dispatchloopstartup调用并执行插件
YAF_EXCEPTION_HANDLE(dispatcher, request, response); //异常处理
view = yaf_dispatcher_init_view(dispatcher, NULL, NULL TSRMLS_CC); //在dispatcher中实例化视图引擎
if (!view) {
return NULL;
}
/* 进行路由的分发，其中包含了forward操作 */
do {
YAF_PLUGIN_HANDLE(plugins, YAF_PLUGIN_HOOK_PREDISPATCH, request, response); //predispatch调用并执行插件
if (!yaf_dispatcher_handle(dispatcher, request, response, view TSRMLS_CC)) { //进行controller文件的加载、然后执行action，最后根据配置来进行模板渲染以及输出
YAF_EXCEPTION_HANDLE(dispatcher, request, response);
zval_ptr_dtor(&response);
return NULL;
}
/* 进行module/controller/action名的检验以及响应的转换 */
yaf_dispatcher_fix_default(dispatcher, request TSRMLS_CC);
YAF_PLUGIN_HANDLE(plugins, YAF_PLUGIN_HOOK_POSTDISPATCH, request, response); //postdispatch调用并执行插件
YAF_EXCEPTION_HANDLE(dispatcher, request, response); //捕获异常
} while (--nesting > 0 && !yaf_request_is_dispatched(request TSRMLS_CC));
YAF_PLUGIN_HANDLE(plugins, YAF_PLUGIN_HOOK_LOOPSHUTDOWN, request, response); //dispatchloopshutdown调用并执行插件
YAF_EXCEPTION_HANDLE(dispatcher, request, response); //捕获异常
if (0 == nesting && !yaf_request_is_dispatched(request TSRMLS_CC)) {
yaf_trigger_error(YAF_ERR_DISPATCH_FAILED TSRMLS_CC, "The max dispatch nesting %ld was reached", YAF_G(forward_limit));
YAF_EXCEPTION_HANDLE_NORET(dispatcher, request, response);
zval_ptr_dtor(&response);
return NULL;
}
/* $return_response = $this->_return_response */
return_response = zend_read_property(yaf_dispatcher_ce, dispatcher, ZEND_STRL(YAF_DISPATCHER_PROPERTY_NAME_RETURN), 1 TSRMLS_CC);