0
0
mirror of https://github.com/phpv8/v8js.git synced 2024-11-08 15:48:40 +00:00
phpv8/v8js_methods.cc

386 lines
11 KiB
C++
Raw Blame History

This file contains invisible Unicode characters

This file contains invisible Unicode characters that are indistinguishable to humans but may be processed differently by a computer. If you think that this is intentional, you can safely ignore this warning. Use the Escape button to reveal them.

/*
+----------------------------------------------------------------------+
| PHP Version 5 |
+----------------------------------------------------------------------+
| Copyright (c) 1997-2012 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. |
+----------------------------------------------------------------------+
| Author: Jani Taskinen <jani.taskinen@iki.fi> |
| Author: Patrick Reilly <preilly@php.net> |
+----------------------------------------------------------------------+
*/
/* $Id$ */
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
extern "C" {
#include "php.h"
#include "zend_exceptions.h"
}
#include "php_v8js_macros.h"
#include <v8.h>
#include <map>
#include <vector>
/* global.exit - terminate execution */
V8JS_METHOD(exit) /* {{{ */
{
v8::V8::TerminateExecution();
return v8::Undefined();
}
/* }}} */
/* global.sleep - sleep for passed seconds */
V8JS_METHOD(sleep) /* {{{ */
{
php_sleep(args[0]->Int32Value());
return v8::Undefined();
}
/* }}} */
/* global.print - php print() */
V8JS_METHOD(print) /* {{{ */
{
int ret = 0;
TSRMLS_FETCH();
for (int i = 0; i < args.Length(); i++) {
v8::String::Utf8Value str(args[i]);
const char *cstr = ToCString(str);
ret = PHPWRITE(cstr, strlen(cstr));
}
return V8JS_INT(ret);
}
/* }}} */
static void _php_v8js_dumper(v8::Local<v8::Value> var, int level TSRMLS_DC) /* {{{ */
{
v8::String::Utf8Value str(var->ToDetailString());
const char *valstr = ToCString(str);
size_t valstr_len = (valstr) ? strlen(valstr) : 0;
if (level > 1) {
php_printf("%*c", (level - 1) * 2, ' ');
}
if (var->IsString())
{
php_printf("string(%d) \"%s\"\n", valstr_len, valstr);
}
else if (var->IsBoolean())
{
php_printf("bool(%s)\n", valstr);
}
else if (var->IsInt32() || var->IsUint32())
{
php_printf("int(%s)\n", valstr);
}
else if (var->IsNumber())
{
php_printf("float(%s)\n", valstr);
}
else if (var->IsDate())
{
php_printf("Date(%s)\n", valstr);
}
#if PHP_V8_API_VERSION >= 2003007
else if (var->IsRegExp())
{
php_printf("RegExp(%s)\n", valstr);
}
#endif
else if (var->IsArray())
{
v8::Local<v8::Array> array = v8::Local<v8::Array>::Cast(var);
uint32_t length = array->Length();
php_printf("array(%d) {\n", length);
for (unsigned i = 0; i < length; i++) {
php_printf("%*c[%d] =>\n", level * 2, ' ', i);
_php_v8js_dumper(array->Get(i), level + 1 TSRMLS_CC);
}
if (level > 1) {
php_printf("%*c", (level - 1) * 2, ' ');
}
ZEND_PUTS("}\n");
}
else if (var->IsObject())
{
v8::Local<v8::Object> object = v8::Local<v8::Object>::Cast(var);
V8JS_GET_CLASS_NAME(cname, object);
if (var->IsFunction())
{
v8::String::Utf8Value csource(object->ToString());
php_printf("object(%s)#%d {\n%*c%s\n", ToCString(cname), object->GetIdentityHash(), level * 2 + 2, ' ', ToCString(csource));
}
else
{
v8::Local<v8::Array> keys = object->GetPropertyNames();
uint32_t length = keys->Length();
php_printf("object(%s)#%d (%d) {\n", ToCString(cname), object->GetIdentityHash(), length);
for (unsigned i = 0; i < length; i++) {
v8::Local<v8::String> key = keys->Get(i)->ToString();
v8::String::Utf8Value kname(key);
php_printf("%*c[\"%s\"] =>\n", level * 2, ' ', ToCString(kname));
_php_v8js_dumper(object->Get(key), level + 1 TSRMLS_CC);
}
}
if (level > 1) {
php_printf("%*c", (level - 1) * 2, ' ');
}
ZEND_PUTS("}\n");
}
else /* null, undefined, etc. */
{
php_printf("<%s>\n", valstr);
}
}
/* }}} */
/* global.var_dump - Dump JS values */
V8JS_METHOD(var_dump) /* {{{ */
{
int i;
TSRMLS_FETCH();
for (int i = 0; i < args.Length(); i++) {
_php_v8js_dumper(args[i], 1 TSRMLS_CC);
}
return V8JS_NULL;
}
/* }}} */
// TODO: Put this in php_v8js_context
std::map<char *, v8::Handle<v8::Object> > modules_loaded;
std::vector<char *> modules_stack;
void split_terms(char *identifier, std::vector<char *> &terms)
{
char *term = (char *)malloc(PATH_MAX), *ptr = term;
// Initialise the term string
*term = 0;
while (*identifier > 0) {
if (*identifier == '/') {
if (strlen(term) > 0) {
// Terminate term string and add to terms vector
*ptr++ = 0;
terms.push_back(strdup(term));
// Reset term string
memset(term, 0, strlen(term));
ptr = term;
}
} else {
*ptr++ = *identifier;
}
identifier++;
}
if (strlen(term) > 0) {
// Terminate term string and add to terms vector
*ptr++ = 0;
terms.push_back(strdup(term));
}
if (term > 0) {
free(term);
}
}
void normalize_identifier(char *identifier, char *normalised)
{
std::vector<char *> terms;
split_terms(identifier, terms);
std::vector<char *> normalised_terms;
for (std::vector<char *>::iterator it = terms.begin(); it != terms.end(); it++) {
char *term = *it;
if (!strcmp(term, "..")) {
normalised_terms.pop_back();
} else if (strcmp(term, ".")) {
normalised_terms.push_back(term);
}
}
// Initialise the normalised string
*normalised = 0;
for (std::vector<char *>::iterator it = normalised_terms.begin(); it != normalised_terms.end(); it++) {
char *term = *it;
if (strlen(normalised) > 0) {
strcat(normalised, "/");
}
strcat(normalised, term);
}
}
V8JS_METHOD(require)
{
v8::String::Utf8Value module_name_v8(args[0]);
// Make sure to duplicate the module name string so it doesn't get freed by the V8 garbage collector
char *module_name = strdup(ToCString(module_name_v8));
char *normalised_module_identifier = (char *)malloc(strlen(module_name));
normalize_identifier(module_name, normalised_module_identifier);
// Check for module cyclic dependencies
for (std::vector<char *>::iterator it = modules_stack.begin(); it != modules_stack.end(); ++it)
{
if (!strcmp(*it, normalised_module_identifier)) {
return v8::ThrowException(v8::String::New("Module cyclic dependency"));
}
}
// If we have already loaded and cached this module then use it
if (modules_loaded.count(normalised_module_identifier) > 0) {
return modules_loaded[normalised_module_identifier];
}
// Get the extension context
v8::Handle<v8::External> data = v8::Handle<v8::External>::Cast(args.Data());
php_v8js_ctx *c = static_cast<php_v8js_ctx*>(data->Value());
// Check that we have a module loader
if (c->module_loader == NULL) {
return v8::ThrowException(v8::String::New("No module loader"));
}
// Callback to PHP to load the module code
zval module_code;
zval *module_name_zend;
MAKE_STD_ZVAL(module_name_zend);
ZVAL_STRING(module_name_zend, normalised_module_identifier, 1);
zval* params[] = { module_name_zend };
if (FAILURE == call_user_function(EG(function_table), NULL, c->module_loader, &module_code, 1, params TSRMLS_CC)) {
return v8::ThrowException(v8::String::New("Module loader callback failed"));
}
// Check if an exception was thrown
if (EG(exception)) {
// Clear the PHP exception and throw it in V8 instead
zend_clear_exception(TSRMLS_CC);
return v8::ThrowException(v8::String::New("Module loader callback exception 456"));
}
// Convert the return value to string
if (Z_TYPE(module_code) != IS_STRING) {
convert_to_string(&module_code);
}
// Check that some code has been returned
if (!strlen(Z_STRVAL(module_code))) {
return v8::ThrowException(v8::String::New("Module loader callback did not return code"));
}
// Create a template for the global object and set the built-in global functions
v8::Handle<v8::ObjectTemplate> global = v8::ObjectTemplate::New();
global->Set(v8::String::New("print"), v8::FunctionTemplate::New(V8JS_MN(print)), v8::ReadOnly);
global->Set(v8::String::New("require"), v8::FunctionTemplate::New(V8JS_MN(require), v8::External::New(c)), v8::ReadOnly);
// Add the exports object in which the module returns its API
v8::Handle<v8::ObjectTemplate> exports_template = v8::ObjectTemplate::New();
v8::Handle<v8::Object> exports = exports_template->NewInstance();
global->Set(v8::String::New("exports"), exports);
// Each module gets its own context so different modules do not affect each other
v8::Persistent<v8::Context> context = v8::Context::New(NULL, global);
// Catch JS exceptions
v8::TryCatch try_catch;
// Enter the module context
v8::Context::Scope scope(context);
v8::HandleScope handle_scope;
// Set script identifier
v8::Local<v8::String> sname = V8JS_SYM("require");
v8::Local<v8::String> source = v8::String::New(Z_STRVAL(module_code));
// Create and compile script
v8::Local<v8::Script> script = v8::Script::New(source, sname);
// The script will be empty if there are compile errors
if (script.IsEmpty()) {
return v8::ThrowException(v8::String::New("Module script compile failed"));
}
// Add this module to the stack
modules_stack.push_back(normalised_module_identifier);
// Run script
v8::Local<v8::Value> result = script->Run();
// Remove this module from the stack
modules_stack.pop_back();
// Script possibly terminated, return immediately
if (!try_catch.CanContinue()) {
return v8::ThrowException(v8::String::New("Module script compile failed"));
}
// Handle runtime JS exceptions
if (try_catch.HasCaught()) {
// Rethrow the exception back to JS
return try_catch.ReThrow();
}
// Cache the module so it doesn't need to be compiled and run again
modules_loaded[normalised_module_identifier] = handle_scope.Close(exports);
return modules_loaded[normalised_module_identifier];
}
void php_v8js_register_methods(v8::Handle<v8::ObjectTemplate> global, php_v8js_ctx *c) /* {{{ */
{
global->Set(V8JS_SYM("exit"), v8::FunctionTemplate::New(V8JS_MN(exit)), v8::ReadOnly);
global->Set(V8JS_SYM("sleep"), v8::FunctionTemplate::New(V8JS_MN(sleep)), v8::ReadOnly);
global->Set(V8JS_SYM("print"), v8::FunctionTemplate::New(V8JS_MN(print)), v8::ReadOnly);
global->Set(V8JS_SYM("var_dump"), v8::FunctionTemplate::New(V8JS_MN(var_dump)), v8::ReadOnly);
global->Set(V8JS_SYM("require"), v8::FunctionTemplate::New(V8JS_MN(require), v8::External::New(c)), v8::ReadOnly);
}
/* }}} */
/*
* Local variables:
* tab-width: 4
* c-basic-offset: 4
* End:
* vim600: noet sw=4 ts=4 fdm=marker
* vim<600: noet sw=4 ts=4
*/