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archived-php-src/sapi/activescript/scriptengine.cpp
Wez Furlong 20eac88e58 Tidy up a few loose ends. 
Override normal php.ini behaviour so that only the launching applications
folder is searched; this avoids picking up a default php.ini with an execution
time limit set.
2004-07-27 22:36:56 +00:00

2016 lines
52 KiB
C++
Raw Blame History

/*
+----------------------------------------------------------------------+
| PHP Version 5 |
+----------------------------------------------------------------------+
| Copyright (c) 1997-2004 The PHP Group |
+----------------------------------------------------------------------+
| This source file is subject to version 3.0 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_0.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: Wez Furlong <wez@thebrainroom.com> |
+----------------------------------------------------------------------+
*/
/* $Id$ */
/* Implementation Notes:
*
* PHP stores scripting engine state in thread-local storage. That means
* that we need to create a dedicated thread per-engine so that a host can
* use more than one engine object per thread.
*
* There are some interesting synchronization issues: Anything to do with
* running script in the PHP/Zend engine must take place on the engine
* thread. Likewise, calling back to the host must take place on the base
* thread - the thread that set the script site.
* */
#define _WIN32_DCOM
#define ZEND_INCLUDE_FULL_WINDOWS_HEADERS
#include "php.h"
extern "C" {
#include "php_main.h"
#include "SAPI.h"
#include "zend.h"
#include "zend_execute.h"
#include "zend_compile.h"
#include "php_globals.h"
#include "php_variables.h"
#include "php_ini.h"
#include "php5activescript.h"
#include "ext/com_dotnet/php_com_dotnet.h"
#include "ext/com_dotnet/php_com_dotnet_internal.h"
#include "zend_exceptions.h"
}
#include "php_ticks.h"
#include "php5as_scriptengine.h"
#include "php5as_classfactory.h"
#include <objbase.h>
#undef php_win_err
static int clone_frags(void *pDest, void *arg TSRMLS_DC);
#define ENGINE_THREAD_ONLY(type, method) \
if (tsrm_thread_id() != m_enginethread) { \
trace("WRONG THREAD !! " #type "::" #method "\n"); \
return RPC_E_WRONG_THREAD; \
} \
trace("[direct] " #type "::" #method "\n");
#define ASS_CALL_(ret, eng, method, args) \
if (tsrm_thread_id() == eng->m_basethread) { \
trace("Calling [direct] m_pass->" #method "\n"); \
ret = eng->m_pass->method args; \
} else { \
IActiveScriptSite *ass; \
trace("Calling [marshall] m_pass->" #method "\n"); \
ret = GIT_get(eng->m_asscookie, IID_IActiveScriptSite, (void**)&ass); \
if (SUCCEEDED(ret)) { \
ret = ass->method args; \
ass->Release(); \
} \
} \
trace("--- done calling m_pass->" #method "\n");
#define ASS_CALL(ret, method, args) ASS_CALL_(ret, this, method, args)
/* {{{ trace */
static inline void trace(char *fmt, ...)
{
va_list ap;
char buf[4096];
sprintf(buf, "T=%08x ", tsrm_thread_id());
OutputDebugString(buf);
va_start(ap, fmt);
vsnprintf(buf, sizeof(buf), fmt, ap);
OutputDebugString(buf);
va_end(ap);
}
/* }}} */
/* {{{ scriptstate_to_string */
static const char *scriptstate_to_string(SCRIPTSTATE ss)
{
switch(ss) {
case SCRIPTSTATE_UNINITIALIZED: return "SCRIPTSTATE_UNINITIALIZED";
case SCRIPTSTATE_INITIALIZED: return "SCRIPTSTATE_INITIALIZED";
case SCRIPTSTATE_STARTED: return "SCRIPTSTATE_STARTED";
case SCRIPTSTATE_CONNECTED: return "SCRIPTSTATE_CONNECTED";
case SCRIPTSTATE_DISCONNECTED: return "SCRIPTSTATE_DISCONNECTED";
case SCRIPTSTATE_CLOSED: return "SCRIPTSTATE_CLOSED";
default:
return "unknown";
}
}
/* }}} */
/* {{{ TWideString */
/* This class helps manipulate strings from OLE.
* It does not use emalloc, so it is better suited for passing pointers
* between threads. */
class TWideString {
public:
LPOLESTR m_ole;
char *m_ansi;
int m_ansi_strlen;
TWideString(LPOLESTR olestr) {
m_ole = olestr;
m_ansi = NULL;
m_ansi_strlen = 0;
}
TWideString(LPCOLESTR olestr) {
m_ole = (LPOLESTR)olestr;
m_ansi = NULL;
m_ansi_strlen = 0;
}
~TWideString() {
if (m_ansi) {
CoTaskMemFree(m_ansi);
}
m_ansi = NULL;
m_ansi_strlen = 0;
}
char *safe_ansi_string() {
char *ret = ansi_string();
if (ret == NULL)
return "<NULL>";
return ret;
}
int ansi_len(void) {
/* force conversion if it has not already occurred */
if (m_ansi == NULL)
ansi_string();
return m_ansi_strlen;
}
static BSTR bstr_from_ansi(char *ansi) {
OLECHAR *ole = NULL;
BSTR bstr = NULL;
int req = MultiByteToWideChar(CP_ACP, 0, ansi, -1, NULL, 0);
if (req) {
ole = (OLECHAR*)CoTaskMemAlloc((req + 1) * sizeof(OLECHAR));
if (ole) {
req = MultiByteToWideChar(CP_ACP, 0, ansi, -1, ole, req);
req--;
ole[req] = 0;
bstr = SysAllocString(ole);
CoTaskMemFree(ole);
}
}
return bstr;
}
char *ansi_string(void)
{
if (m_ansi)
return m_ansi;
if (m_ole == NULL)
return NULL;
int bufrequired = WideCharToMultiByte(CP_ACP, 0, m_ole, -1, NULL, 0, NULL, NULL);
if (bufrequired) {
m_ansi = (char*)CoTaskMemAlloc(bufrequired + 1);
if (m_ansi) {
m_ansi_strlen = WideCharToMultiByte(CP_ACP, 0, m_ole, -1, m_ansi, bufrequired + 1, NULL, NULL);
if (m_ansi_strlen) {
m_ansi_strlen--;
} else {
trace("conversion failed with return code %08x\n", GetLastError());
}
}
if (m_ansi) {
m_ansi[m_ansi_strlen] = 0;
}
}
return m_ansi;
}
};
/* }}} */
/* {{{ code fragment structures */
enum fragtype {
FRAG_MAIN,
FRAG_SCRIPTLET,
FRAG_PROCEDURE
};
typedef struct {
enum fragtype fragtype;
zend_op_array *opcodes;
char *code;
int persistent; /* should be retained for Clone */
int executed; /* for "main" */
char *functionname;
unsigned int codelen;
unsigned int starting_line;
TPHPScriptingEngine *engine;
void *ptr;
} code_frag;
#define FRAG_CREATE_FUNC (char*)-1
static code_frag *compile_code_fragment(
enum fragtype fragtype,
char *functionname,
LPCOLESTR code,
ULONG starting_line,
EXCEPINFO *excepinfo,
TPHPScriptingEngine *engine
TSRMLS_DC);
static int execute_code_fragment(code_frag *frag,
VARIANT *varResult,
EXCEPINFO *excepinfo
TSRMLS_DC);
static void free_code_fragment(code_frag *frag TSRMLS_DC);
static code_frag *clone_code_fragment(code_frag *frag, TPHPScriptingEngine *engine TSRMLS_DC);
/* }}} */
/* These functions do some magic so that interfaces can be
* used across threads without worrying about marshalling
* or not marshalling, as appropriate.
* Win95 without DCOM 1.1, and NT SP 2 or lower do not have
* the GIT; so we emulate the GIT using other means.
* If you trace problems back to this code, installing the relevant
* SP should solve them.
* */
static inline HRESULT GIT_get(DWORD cookie, REFIID riid, void **obj)
{
IGlobalInterfaceTable *git;
HRESULT ret;
if (SUCCEEDED(CoCreateInstance(CLSID_StdGlobalInterfaceTable, NULL,
CLSCTX_INPROC_SERVER, IID_IGlobalInterfaceTable,
(void**)&git))) {
ret = git->GetInterfaceFromGlobal(cookie, riid, obj);
git->Release();
return ret;
}
return CoGetInterfaceAndReleaseStream((LPSTREAM)cookie, riid, obj);
}
static inline HRESULT GIT_put(IUnknown *unk, REFIID riid, DWORD *cookie)
{
IGlobalInterfaceTable *git;
HRESULT ret;
if (SUCCEEDED(CoCreateInstance(CLSID_StdGlobalInterfaceTable, NULL,
CLSCTX_INPROC_SERVER, IID_IGlobalInterfaceTable,
(void**)&git))) {
ret = git->RegisterInterfaceInGlobal(unk, riid, cookie);
git->Release();
return ret;
}
return CoMarshalInterThreadInterfaceInStream(riid, unk, (LPSTREAM*)cookie);
}
static inline HRESULT GIT_revoke(DWORD cookie, IUnknown *unk, int kill)
{
IGlobalInterfaceTable *git;
HRESULT ret;
if (SUCCEEDED(CoCreateInstance(CLSID_StdGlobalInterfaceTable, NULL,
CLSCTX_INPROC_SERVER, IID_IGlobalInterfaceTable,
(void**)&git))) {
ret = git->RevokeInterfaceFromGlobal(cookie);
git->Release();
}
/* Kill remote clients */
if (kill)
return CoDisconnectObject(unk, 0);
return ret;
}
/* {{{ A generic stupid IDispatch implementation */
class IDispatchImpl:
public IDispatch
{
protected:
volatile LONG m_refcount;
public:
/* IUnknown */
STDMETHODIMP QueryInterface(REFIID iid, void **ppvObject) {
*ppvObject = NULL;
if (IsEqualGUID(IID_IDispatch, iid)) {
*ppvObject = (IDispatch*)this;
} else if (IsEqualGUID(IID_IUnknown, iid)) {
*ppvObject = this;
}
if (*ppvObject) {
AddRef();
return S_OK;
}
return E_NOINTERFACE;
}
STDMETHODIMP_(DWORD) AddRef(void) {
return InterlockedIncrement(const_cast<long*> (&m_refcount));
}
STDMETHODIMP_(DWORD) Release(void) {
DWORD ret = InterlockedDecrement(const_cast<long*> (&m_refcount));
trace("%08x: IDispatchImpl: release ref count is now %d\n", this, ret);
if (ret == 0)
delete this;
return ret;
}
/* IDispatch */
STDMETHODIMP GetTypeInfoCount(unsigned int * pctinfo) {
*pctinfo = 0;
trace("%08x: IDispatchImpl: GetTypeInfoCount\n", this);
return S_OK;
}
STDMETHODIMP GetTypeInfo( unsigned int iTInfo, LCID lcid, ITypeInfo **ppTInfo) {
trace("%08x: IDispatchImpl: GetTypeInfo\n", this);
return DISP_E_BADINDEX;
}
STDMETHODIMP GetIDsOfNames( REFIID riid, OLECHAR **rgszNames, unsigned int cNames, LCID lcid, DISPID *rgDispId)
{
unsigned int i;
trace("%08x: IDispatchImpl: GetIDsOfNames: \n", this);
for (i = 0; i < cNames; i++) {
TWideString name(rgszNames[i]);
trace(" %s\n", name.ansi_string());
}
trace("----\n");
return DISP_E_UNKNOWNNAME;
}
STDMETHODIMP Invoke( DISPID dispIdMember, REFIID riid, LCID lcid, WORD wFlags,
DISPPARAMS FAR* pDispParams, VARIANT FAR* pVarResult, EXCEPINFO FAR* pExcepInfo,
unsigned int FAR* puArgErr)
{
trace("%08x: IDispatchImpl: Invoke dispid %08x\n", this, dispIdMember);
return S_OK;
}
IDispatchImpl() {
m_refcount = 1;
}
virtual ~IDispatchImpl() {
}
};
/* }}} */
STDMETHODIMP TPHPScriptingEngine::GetTypeInfoCount(unsigned int * pctinfo) {
*pctinfo = 0;
trace("%08x: ScriptDispatch: GetTypeInfoCount\n", this);
return S_OK;
}
STDMETHODIMP TPHPScriptingEngine::GetTypeInfo( unsigned int iTInfo, LCID lcid, ITypeInfo **ppTInfo) {
trace("%08x: ScriptDispatch: GetTypeInfo\n", this);
return DISP_E_BADINDEX;
}
static int function_exists(char *name TSRMLS_DC)
{
int ex;
int l = strlen(name);
char *lcname;
lcname = zend_str_tolower_dup(name, l);
ex = zend_hash_exists(EG(function_table), lcname, l+1);
efree(lcname);
return ex;
}
int TPHPScriptingEngine::create_id(OLECHAR *name, DISPID *dispid TSRMLS_DC)
{
int ex = 0;
int l;
if (m_ids >= 1023) {
trace("too many ids\n");
return 0;
}
TWideString aname(name);
if (!function_exists(aname.ansi_string() TSRMLS_CC)) {
trace("no such id %s\n", aname.ansi_string());
return 0;
}
/* do we already have an id for this name? */
int i;
for (i = 0; i < m_ids; i++) {
if (!strcasecmp(m_names[i], aname.ansi_string())) {
trace("already had this ID\n");
return i;
}
}
m_lens[m_ids] = aname.ansi_len();
m_names[m_ids] = aname.ansi_string();
trace("created ID %d for name %s\n", m_ids, m_names[m_ids]);
aname.m_ansi = NULL;
*dispid = m_ids;
m_ids++;
return 1;
}
STDMETHODIMP TPHPScriptingEngine::GetIDsOfNames( REFIID riid, OLECHAR **rgszNames, unsigned int cNames, LCID lcid, DISPID *rgDispId)
{
unsigned int i;
HRESULT ret = S_OK;
TSRMLS_FETCH();
if (tsrm_thread_id() != m_enginethread) {
trace("GetIDsOfNames called from wrong thread\n");
return RPC_E_WRONG_THREAD;
}
trace("%08x: ScriptDispatch: GetIDsOfNames %d names: \n", this, cNames);
for (i = 0; i < cNames; i++) {
if (!create_id(rgszNames[i], &rgDispId[i] TSRMLS_CC)) {
ret = DISP_E_UNKNOWNNAME;
break;
}
}
return ret;
}
STDMETHODIMP TPHPScriptingEngine::Invoke( DISPID dispIdMember, REFIID riid, LCID lcid, WORD wFlags,
DISPPARAMS FAR* pdp, VARIANT FAR* pvarRes, EXCEPINFO FAR* pei,
unsigned int FAR* puArgErr)
{
UINT i;
zval *retval = NULL;
zval ***params = NULL;
HRESULT dummy, ret = DISP_E_MEMBERNOTFOUND;
char *name;
int namelen;
TSRMLS_FETCH();
if (tsrm_thread_id() != m_enginethread) {
trace("Invoke called from wrong thread\n");
return RPC_E_WRONG_THREAD;
}
name = m_names[dispIdMember];
namelen = m_lens[dispIdMember];
trace("%08x: ScriptDispatch: Invoke dispid %08x [%s]\n", this, dispIdMember, name);
/* this code is similar to that of our com_wrapper InvokeEx implementation */
/* convert args into zvals.
* Args are in reverse order */
if (pdp->cArgs) {
params = (zval ***)safe_emalloc(sizeof(zval **), pdp->cArgs, 0);
for (i = 0; i < pdp->cArgs; i++) {
VARIANT *arg;
zval *zarg;
arg = &pdp->rgvarg[ pdp->cArgs - 1 - i];
trace("alloc zval for arg %d VT=%08x\n", i, V_VT(arg));
ALLOC_INIT_ZVAL(zarg);
php_com_wrap_variant(zarg, arg, CP_ACP TSRMLS_CC);
params[i] = &zarg;
}
}
trace("arguments processed, prepare to do some work\n");
/* TODO: if PHP raises an exception here, we should catch it
* and expose it as a COM exception */
#if 0
if (wFlags & DISPATCH_PROPERTYGET) {
retval = zend_read_property(Z_OBJCE_P(disp->object), disp->object, m_names[dispIdMember], m_lens[dispIdMember]+1, 1 TSRMLS_CC);
} else if (wFlags & DISPATCH_PROPERTYPUT) {
zend_update_property(Z_OBJCE_P(disp->object), disp->object, m_names[dispIdMember], m_lens[dispIdMember]+1, *params[0] TSRMLS_CC);
} else
#endif
if (wFlags & DISPATCH_METHOD) {
zval *zname;
MAKE_STD_ZVAL(zname);
ZVAL_STRINGL(zname, (char*)name, namelen, 1);
trace("invoke function %s\n", Z_STRVAL_P(zname));
ASS_CALL(dummy, OnEnterScript, ());
zend_try {
if (SUCCESS == call_user_function_ex(CG(function_table), NULL, zname,
&retval, pdp->cArgs, params, 1, NULL TSRMLS_CC)) {
ret = S_OK;
trace("we ran it\n");
} else {
ret = DISP_E_EXCEPTION;
trace("no such function\n");
}
} zend_catch {
ret = DISP_E_EXCEPTION;
/* need to populate the exception here */
trace("bork\n");
} zend_end_try();
ASS_CALL(dummy, OnLeaveScript, ());
zval_ptr_dtor(&zname);
} else {
trace("Don't know how to handle this invocation %08x\n", wFlags);
ret = E_UNEXPECTED;
}
/* release arguments */
for (i = 0; i < pdp->cArgs; i++)
zval_ptr_dtor(params[i]);
if (params)
efree(params);
/* return value */
if (retval) {
if (pvarRes) {
VariantInit(pvarRes);
trace("setting up return value\n");
php_com_variant_from_zval(pvarRes, retval, CP_ACP TSRMLS_CC);
}
zval_ptr_dtor(&retval);
} else if (pvarRes) {
VariantInit(pvarRes);
}
trace("Invocation complete\n");
return ret;
}
/* {{{ This object is used in conjunction with IActiveScriptParseProcedure to
* allow scriptlets to be bound to events. IE uses this for declaring
* event handlers such as onclick="...".
* The compiled code is stored in this object; IE will call
* IDispatch::Invoke when the element is clicked.
* */
class ScriptProcedureDispatch:
public IDispatchImpl
{
public:
code_frag *m_frag;
DWORD m_procflags;
TPHPScriptingEngine *m_engine;
DWORD m_gitcookie;
STDMETHODIMP Invoke( DISPID dispIdMember, REFIID riid, LCID lcid, WORD wFlags,
DISPPARAMS FAR* pDispParams, VARIANT FAR* pVarResult, EXCEPINFO FAR* pExcepInfo,
unsigned int FAR* puArgErr)
{
TSRMLS_FETCH();
HRESULT dummy;
if (m_frag) {
trace("%08x: Procedure Dispatch: Invoke dispid %08x\n", this, dispIdMember);
ASS_CALL_(dummy, m_engine, OnEnterScript, ());
execute_code_fragment(m_frag, NULL, NULL TSRMLS_CC);
ASS_CALL_(dummy, m_engine, OnLeaveScript, ());
}
return S_OK;
}
ScriptProcedureDispatch() {
m_refcount = 1;
GIT_put((IDispatch*)this, IID_IDispatch, &m_gitcookie);
}
};
/* }}} */
/* {{{ code fragment management */
static code_frag *compile_code_fragment(
enum fragtype fragtype,
char *functionname,
LPCOLESTR code,
ULONG starting_line,
EXCEPINFO *excepinfo,
TPHPScriptingEngine *engine
TSRMLS_DC)
{
zval pv;
int code_offs = 0;
char namebuf[256];
code_frag *frag = (code_frag*)CoTaskMemAlloc(sizeof(code_frag));
memset(frag, 0, sizeof(code_frag));
frag->engine = engine;
/* handle the function name */
if (functionname) {
int namelen;
if (functionname == FRAG_CREATE_FUNC) {
ULONG n = ++engine->m_lambda_count;
sprintf(namebuf, "__frag_%08x_%u", engine, n);
functionname = namebuf;
}
namelen = strlen(functionname);
code_offs = namelen + sizeof("function (){");
frag->functionname = (char*)CoTaskMemAlloc((namelen + 1) * sizeof(char));
memcpy(frag->functionname, functionname, namelen+1);
}
frag->functionname = functionname;
trace("%08x: COMPILED FRAG\n", frag);
frag->codelen = WideCharToMultiByte(CP_ACP, 0, code, -1, NULL, 0, NULL, NULL);
frag->code = (char*)CoTaskMemAlloc(sizeof(char) * (frag->codelen + code_offs + 1));
if (functionname) {
sprintf(frag->code, "function %s(){ ", functionname);
}
frag->codelen = WideCharToMultiByte(CP_ACP, 0, code, -1, frag->code + code_offs, frag->codelen, NULL, NULL) - 1;
if (functionname) {
frag->codelen += code_offs + 1;
frag->code[frag->codelen-1] = '}';
frag->code[frag->codelen] = 0;
}
trace("code to compile is:\ncode_offs=%d func=%s\n%s\n", code_offs, functionname, frag->code);
frag->fragtype = fragtype;
frag->starting_line = starting_line;
pv.type = IS_STRING;
pv.value.str.val = frag->code;
pv.value.str.len = frag->codelen;
frag->opcodes = compile_string(&pv, "fragment" TSRMLS_CC);
if (frag->opcodes == NULL) {
free_code_fragment(frag TSRMLS_CC);
if (excepinfo) {
memset(excepinfo, 0, sizeof(EXCEPINFO));
excepinfo->wCode = 1000;
excepinfo->bstrSource = TWideString::bstr_from_ansi("fragment");
excepinfo->bstrDescription = TWideString::bstr_from_ansi("Problem while parsing/compiling");
}
return NULL;
}
return frag;
}
static void free_code_fragment(code_frag *frag TSRMLS_DC)
{
switch(frag->fragtype) {
case FRAG_PROCEDURE:
if (frag->ptr) {
ScriptProcedureDispatch *disp = (ScriptProcedureDispatch*)frag->ptr;
disp->Release();
GIT_revoke(disp->m_gitcookie, (IDispatch*)disp, 1);
frag->ptr = NULL;
}
break;
}
if (frag->opcodes) {
destroy_op_array(frag->opcodes TSRMLS_CC);
frag->opcodes = NULL;
}
if (frag->functionname) {
CoTaskMemFree(frag->functionname);
frag->functionname = NULL;
}
CoTaskMemFree(frag->code);
CoTaskMemFree(frag);
}
static code_frag *clone_code_fragment(code_frag *frag, TPHPScriptingEngine *engine TSRMLS_DC)
{
zval pv;
code_frag *newfrag = (code_frag*)CoTaskMemAlloc(sizeof(code_frag));
memset(newfrag, 0, sizeof(code_frag));
newfrag->engine = engine;
trace("%08x: CLONED FRAG\n", newfrag);
newfrag->persistent = frag->persistent;
newfrag->codelen = frag->codelen;
newfrag->code = (char*)CoTaskMemAlloc(sizeof(char) * frag->codelen + 1);
memcpy(newfrag->code, frag->code, frag->codelen + 1);
if (frag->functionname) {
int namelen = strlen(frag->functionname);
newfrag->functionname = (char*)CoTaskMemAlloc(sizeof(char) * (namelen + 1));
memcpy(newfrag->functionname, frag->functionname, namelen+1);
} else {
newfrag->functionname = NULL;
}
newfrag->fragtype = frag->fragtype;
newfrag->starting_line = frag->starting_line;
pv.type = IS_STRING;
pv.value.str.val = newfrag->code;
pv.value.str.len = newfrag->codelen;
/* we defer compilation until we are ready to execute,
* as we need the host to AddNamedItem certain autoglobals
* BEFORE we compile */
newfrag->opcodes = NULL;
return newfrag;
}
static int execute_code_fragment(code_frag *frag,
VARIANT *varResult,
EXCEPINFO *excepinfo
TSRMLS_DC)
{
zval *retval_ptr = NULL;
if (frag->fragtype == FRAG_MAIN && frag->executed)
return 1;
/* compiled cloned fragment, JIT */
if (frag->persistent && frag->opcodes == NULL) {
zval pv;
pv.type = IS_STRING;
pv.value.str.val = frag->code;
pv.value.str.len = frag->codelen;
frag->opcodes = compile_string(&pv, "fragment (JIT)" TSRMLS_CC);
if (!frag->opcodes) {
trace("*** JIT compilation of cloned opcodes failed??");
return 0;
}
}
zend_try {
trace("*** Executing code in thread %08x\n", tsrm_thread_id());
if (frag->functionname) {
zval fname;
fname.type = IS_STRING;
fname.value.str.val = frag->functionname;
fname.value.str.len = strlen(frag->functionname);
call_user_function_ex(CG(function_table), NULL, &fname, &retval_ptr, 0, NULL, 1, NULL TSRMLS_CC);
} else {
zend_fcall_info_cache fci_cache;
zend_fcall_info fci;
memset(&fci, 0, sizeof(fci));
memset(&fci_cache, 0, sizeof(fci_cache));
fci.size = sizeof(fci);
fci.function_table = CG(function_table);
fci.retval_ptr_ptr = &retval_ptr;
fci.no_separation = 1;
fci_cache.initialized = 1;
fci_cache.function_handler = (zend_function*)frag->opcodes;
frag->opcodes->type = ZEND_USER_FUNCTION; // mini hack
zend_call_function(&fci, &fci_cache TSRMLS_CC);
}
} zend_catch {
trace("*** --> caught error while executing\n");
if (frag->engine->m_in_main)
frag->engine->m_stop_main = 1;
} zend_end_try();
if (frag->fragtype == FRAG_MAIN)
frag->executed = 1;
if (varResult)
VariantInit(varResult);
if (retval_ptr) {
if (varResult)
php_com_variant_from_zval(varResult, retval_ptr, CP_ACP TSRMLS_CC);
zval_ptr_dtor(&retval_ptr);
}
return 1;
}
static void frag_dtor(void *pDest)
{
TSRMLS_FETCH();
code_frag *frag = *(code_frag**)pDest;
free_code_fragment(frag TSRMLS_CC);
}
/* }}} */
void TPHPScriptingEngine::do_clone(TPHPScriptingEngine *src)
{
TSRMLS_FETCH();
zend_hash_apply_with_argument(&src->m_frags, clone_frags, this TSRMLS_CC);
}
struct engine_startup {
HANDLE evt;
HRESULT ret;
TPHPScriptingEngine *toclone;
TPHPScriptingEngine *localref;
};
static WNDCLASS wc = {0};
static LRESULT CALLBACK script_thread_msg_proc(HWND hwnd, UINT message, WPARAM wparam, LPARAM lparam)
{
switch (message) {
case WM_ACTIVEPHP_SERIALIZE:
return marshal_stub(lparam);
case WM_DESTROY:
PostQuitMessage(0);
return 0;
default:
return DefWindowProc(hwnd, message, wparam, lparam);
}
}
static DWORD WINAPI script_thread(LPVOID param)
{
struct engine_startup *su = (struct engine_startup*)param;
TPHPScriptingEngine *engine;
IUnknown *punk = NULL;
MSG msg;
trace("firing up engine thread/apartment\n");
/* set up COM in this apartment */
CoInitializeEx(0, COINIT_APARTMENTTHREADED);
/* create a window for message queueing */
wc.lpfnWndProc = script_thread_msg_proc;
wc.lpszClassName = "ActivePHP Message Window";
RegisterClass(&wc);
/* create the engine state */
engine = new TPHPScriptingEngine;
engine->m_enginethread = tsrm_thread_id();
engine->m_basethread = 0;
engine->m_queue = CreateWindow(wc.lpszClassName, wc.lpszClassName,
0, CW_USEDEFAULT, CW_USEDEFAULT, CW_USEDEFAULT, CW_USEDEFAULT,
NULL, NULL, NULL, NULL);
/* marshall it for another apartment */
engine->QueryInterface(IID_IUnknown, (void**)&punk);
su->ret = GIT_put(punk, IID_IUnknown, &engine->m_gitcookie);
punk->Release();
su->localref = engine;
/* do we need to clone ? */
if (su->toclone) {
engine->do_clone(su->toclone);
}
/* tell whoever spawned us that we're ready and waiting */
SetEvent(su->evt);
/* pump COM messages */
while (GetMessage(&msg, NULL, 0, 0)) {
TranslateMessage(&msg);
DispatchMessage(&msg);
}
trace("terminating engine thread\n");
CoUninitialize();
return 0;
}
IUnknown *create_scripting_engine(TPHPScriptingEngine *tobecloned)
{
IUnknown *punk = NULL;
struct engine_startup su;
HANDLE hthr;
DWORD thid;
su.evt = CreateEvent(NULL, TRUE, FALSE, NULL);
su.toclone = tobecloned;
hthr = CreateThread(NULL, 0, script_thread, &su, 0, &thid);
if (hthr)
CloseHandle(hthr);
WaitForSingleObject(su.evt, INFINITE);
if (SUCCEEDED(su.ret)) {
punk = (IUnknown*)(void*)su.localref;
}
CloseHandle(su.evt);
return punk;
}
void TPHPScriptingEngine::setup_engine_state(void)
{
TSRMLS_FETCH();
m_enginethread = tsrm_thread_id();
trace("initializing zend engine on this thread\n");
SG(options) |= SAPI_OPTION_NO_CHDIR;
SG(headers_sent) = 1;
SG(request_info).no_headers = 1;
SG(server_context) = this;
/* override the default PHP error callback */
zend_error_cb = activescript_error_handler;
zend_alter_ini_entry("register_argc_argv", 19, "1", 1, PHP_INI_SYSTEM, PHP_INI_STAGE_ACTIVATE);
zend_alter_ini_entry("html_errors", 12, "0", 1, PHP_INI_SYSTEM, PHP_INI_STAGE_ACTIVATE);
zend_alter_ini_entry("implicit_flush", 15, "1", 1, PHP_INI_SYSTEM, PHP_INI_STAGE_ACTIVATE);
zend_alter_ini_entry("max_execution_time", 19, "0", 1, PHP_INI_SYSTEM, PHP_INI_STAGE_ACTIVATE);
php_request_startup(TSRMLS_C);
PG(during_request_startup) = 0;
zend_hash_init(&m_frags, 0, NULL, frag_dtor, 0);
m_done_init = 1;
trace("---- init done\n");
}
TPHPScriptingEngine::TPHPScriptingEngine()
{
TSRMLS_FETCH();
/* CTOR */
trace("*** NEW this=%08x\n", this);
m_scriptstate = SCRIPTSTATE_UNINITIALIZED;
m_pass = NULL;
m_in_main = 0;
m_done_init = 0;
m_stop_main = 0;
m_lambda_count = 0;
m_refcount = 1;
m_ids = 0;
TPHPClassFactory::AddToObjectCount();
setup_engine_state();
}
TPHPScriptingEngine::~TPHPScriptingEngine()
{
/* DTOR */
trace("\n\n *** Engine Destructor Called\n\n");
if (m_done_init && m_scriptstate != SCRIPTSTATE_CLOSED) {
Close();
}
while (m_ids--) {
CoTaskMemFree(m_names[m_ids]);
}
TPHPClassFactory::RemoveFromObjectCount();
DestroyWindow(m_queue);
}
/* Set some executor globals and execute a zend_op_array.
* The declaration looks wierd because this can be invoked from
* zend_hash_apply_with_argument */
static int execute_main(void *pDest, void *arg TSRMLS_DC)
{
code_frag *frag = *(code_frag**)pDest;
if (frag->fragtype == FRAG_MAIN && !(frag->engine->m_in_main && frag->engine->m_stop_main))
execute_code_fragment(frag, NULL, NULL TSRMLS_CC);
return ZEND_HASH_APPLY_KEEP;
}
static int clone_frags(void *pDest, void *arg TSRMLS_DC)
{
code_frag *frag, *src = *(code_frag**)pDest;
TPHPScriptingEngine *engine = (TPHPScriptingEngine*)arg;
if (src->persistent) {
frag = clone_code_fragment(src, engine TSRMLS_CC);
if (frag)
zend_hash_next_index_insert(&engine->m_frags, &frag, sizeof(code_frag*), NULL);
else
trace("WARNING: clone failed!\n");
}
return ZEND_HASH_APPLY_KEEP;
}
/* Only call this in the context of the engine thread, or you'll be sorry.
*
* When SCRIPTITEM_GLOBALMEMBERS is set, we're only adding COM objects to the namespace.
* We could add *all* properties, but I don't like this idea; what if the value changes
* while the page is running? We'd be left with stale data.
* */
static inline void make_auto_global(char *name, zval *val TSRMLS_DC)
{
int namelen = strlen(name);
trace("make_auto_global %s\n", name);
zend_register_auto_global(name, namelen, NULL TSRMLS_CC);
zend_auto_global_disable_jit(name, namelen TSRMLS_CC);
ZEND_SET_SYMBOL(&EG(symbol_table), name, val);
}
void TPHPScriptingEngine::add_to_global_namespace(IDispatch *disp, DWORD flags, char *name TSRMLS_DC)
{
zval *val;
ITypeInfo *typ;
int i;
unsigned int namelen;
FUNCDESC *func;
BSTR funcname;
TYPEATTR *attr;
DISPPARAMS dispparams;
VARIANT vres;
ITypeInfo *rettyp;
TYPEATTR *retattr;
trace("Add %s to global namespace\n", name);
MAKE_STD_ZVAL(val);
php_com_wrap_dispatch(val, disp, CP_ACP TSRMLS_CC);
if (val == NULL) {
disp->Release();
return;
}
make_auto_global(name, val TSRMLS_CC);
if ((flags & SCRIPTITEM_GLOBALMEMBERS) == 0) {
disp->Release();
return;
}
/* Enumerate properties and add those too */
if (FAILED(disp->GetTypeInfo(0, 0, &typ))) {
disp->Release();
return;
}
if (SUCCEEDED(typ->GetTypeAttr(&attr))) {
for (i = 0; i < attr->cFuncs; i++) {
if (FAILED(typ->GetFuncDesc(i, &func)))
continue;
/* Look at its type */
if (func->invkind == INVOKE_PROPERTYGET
&& VT_PTR == func->elemdescFunc.tdesc.vt
&& VT_USERDEFINED == func->elemdescFunc.tdesc.lptdesc->vt
&& SUCCEEDED(typ->GetRefTypeInfo(func->elemdescFunc.tdesc.lptdesc->hreftype, &rettyp)))
{
if (SUCCEEDED(rettyp->GetTypeAttr(&retattr))) {
if (retattr->typekind == TKIND_DISPATCH) {
/* It's dispatchable */
/* get the value */
dispparams.cArgs = 0;
dispparams.cNamedArgs = 0;
VariantInit(&vres);
if (SUCCEEDED(disp->Invoke(func->memid, IID_NULL, 0, func->invkind,
&dispparams, &vres, NULL, NULL))) {
/* Get its dispatch */
IDispatch *sub = NULL;
if (V_VT(&vres) == VT_UNKNOWN)
V_UNKNOWN(&vres)->QueryInterface(IID_IDispatch, (void**)&sub);
else if (V_VT(&vres) == VT_DISPATCH)
sub = V_DISPATCH(&vres);
if (sub) {
/* find out its name */
typ->GetDocumentation(func->memid, &funcname, NULL, NULL, NULL);
name = php_com_olestring_to_string(funcname, &namelen, CP_ACP, 0);
/* add to namespace */
zval *subval;
MAKE_STD_ZVAL(subval);
php_com_wrap_dispatch(subval, sub, CP_ACP TSRMLS_CC);
if (subval) {
make_auto_global(name, subval TSRMLS_CC);
}
efree(name);
SysFreeString(funcname);
}
VariantClear(&vres);
}
}
rettyp->ReleaseTypeAttr(retattr);
}
rettyp->Release();
}
typ->ReleaseFuncDesc(func);
}
typ->ReleaseTypeAttr(attr);
}
disp->Release();
}
STDMETHODIMP_(DWORD) TPHPScriptingEngine::AddRef(void)
{
DWORD ret;
ret = InterlockedIncrement(const_cast<long*> (&m_refcount));
trace("AddRef --> %d\n", ret);
return ret;
}
STDMETHODIMP_(DWORD) TPHPScriptingEngine::Release(void)
{
DWORD ret = InterlockedDecrement(const_cast<long*> (&m_refcount));
if (ret == 0) {
trace("%08x: Release: zero refcount, destroy the engine!\n", this);
delete this;
}
trace("Release --> %d\n", ret);
return ret;
}
STDMETHODIMP TPHPScriptingEngine::QueryInterface(REFIID iid, void **ppvObject)
{
*ppvObject = NULL;
if (IsEqualGUID(IID_IActiveScript, iid)) {
*ppvObject = (IActiveScript*)this;
} else if (IsEqualGUID(IID_IActiveScriptParse, iid)) {
*ppvObject = (IActiveScriptParse*)this;
} else if (IsEqualGUID(IID_IActiveScriptParseProcedure, iid)) {
*ppvObject = (IActiveScriptParseProcedure*)this;
} else if (IsEqualGUID(IID_IObjectSafety, iid)) {
*ppvObject = (IObjectSafety*)this;
} else if (IsEqualGUID(IID_IUnknown, iid)) {
*ppvObject = this;
} else if (IsEqualGUID(IID_IDispatch, iid)) {
*ppvObject = (IDispatch*)this;
} else {
LPOLESTR guidw;
StringFromCLSID(iid, &guidw);
{
TWideString guid(guidw);
trace("%08x: QueryInterface for unsupported %s\n", this, guid.ansi_string());
}
CoTaskMemFree(guidw);
}
if (*ppvObject) {
AddRef();
return S_OK;
}
return E_NOINTERFACE;
}
/* This is called by the host to set the scrite site.
* It also defines the base thread. */
STDMETHODIMP TPHPScriptingEngine::SetScriptSite(IActiveScriptSite *pass)
{
HRESULT ret = S_OK;
TSRMLS_FETCH();
if (m_pass && pass) {
trace("SetScriptSite: we're already set\n");
return E_FAIL;
}
trace("%08x: SetScriptSite(%08x) -----> Base thread is %08x\n", this, pass, tsrm_thread_id());
if (pass) {
m_basethread = tsrm_thread_id();
HRESULT ret = GIT_put(pass, IID_IActiveScriptSite, &m_asscookie);
}
if (m_pass) {
trace("killing off ass cookie\n");
GIT_revoke(m_asscookie, m_pass, 0);
m_pass->Release();
m_pass = NULL;
}
if (pass == NULL) {
trace("Closing down site; we should have no references to objects from the host\n"
" m_pass=%08x\n What about named items??\n",
m_pass);
}
if (pass) {
trace("taking a ref on pass\n");
ret = pass->QueryInterface(IID_IActiveScriptSite, (void**)&m_pass);
trace("----> %s", php_win_err(ret));
if (SUCCEEDED(ret)) {
SetScriptState(SCRIPTSTATE_INITIALIZED);
}
}
return ret;
}
STDMETHODIMP TPHPScriptingEngine::GetScriptSite(REFIID riid, void **ppvObject)
{
HRESULT ret = S_FALSE;
trace("%08x: GetScriptSite()\n", this);
if (m_pass) {
ASS_CALL(ret, QueryInterface, (riid, ppvObject))
}
return ret;
}
STDMETHODIMP TPHPScriptingEngine::SetScriptState(SCRIPTSTATE ss)
{
HRESULT dummy = E_UNEXPECTED;
int start_running = 0;
TSRMLS_FETCH();
if (tsrm_thread_id() != m_enginethread)
return marshal_call(this, APHP_SetScriptState, 1, ss);
trace("%08x: SetScriptState(current=%s, new=%s)\n",
this,
scriptstate_to_string(m_scriptstate),
scriptstate_to_string(ss));
if (m_scriptstate == SCRIPTSTATE_INITIALIZED && (ss == SCRIPTSTATE_STARTED || ss == SCRIPTSTATE_CONNECTED))
start_running = 1;
m_scriptstate = ss;
if (start_running) {
/* run "main()", as described in the docs */
ASS_CALL(dummy, OnEnterScript, ());
trace("%08x: apply execute main to m_frags\n", this);
m_in_main = 1;
m_stop_main = 0;
zend_hash_apply_with_argument(&m_frags, execute_main, this TSRMLS_CC);
m_in_main = 0;
trace("%08x: --- done execute main\n", this);
ASS_CALL(dummy, OnLeaveScript, ());
}
/* inform host/site of the change */
if (m_pass) {
#if 0
if (ss == SCRIPTSTATE_INITIALIZED) {
VARIANT varRes;
VariantInit(&varRes);
// ASS_CALL(dummy, OnScriptTerminate, (&varRes, NULL));
}
#endif
ASS_CALL(dummy, OnStateChange, (m_scriptstate));
}
return S_OK;
}
STDMETHODIMP TPHPScriptingEngine::GetScriptState(SCRIPTSTATE *pssState)
{
trace("%08x: GetScriptState(current=%s)\n", this, scriptstate_to_string(m_scriptstate));
*pssState = m_scriptstate;
return S_OK;
}
STDMETHODIMP TPHPScriptingEngine::Close(void)
{
TSRMLS_FETCH();
trace("Close() refcount = %d\n", m_refcount);
if (m_scriptstate == SCRIPTSTATE_CLOSED)
return E_UNEXPECTED;
if (m_done_init) {
if (tsrm_thread_id() != m_enginethread)
return marshal_call(this, APHP_Close, 0);
m_done_init = 0;
m_scriptstate = SCRIPTSTATE_CLOSED;
zend_hash_destroy(&m_frags);
php_request_shutdown(NULL);
m_enginethread = 0;
}
if (m_pass && tsrm_thread_id() == m_basethread) {
m_pass->OnStateChange(m_scriptstate);
}
trace("%08x: release site \n", this);
if (m_pass && tsrm_thread_id() == m_basethread) {
m_pass->Release();
m_pass = NULL;
}
return S_OK;
}
/* The Host uses this to add objects to the global namespace. Some objects are
* intended to have their child properties globally visible, so we add those to
* the global namespace too. */
STDMETHODIMP TPHPScriptingEngine::AddNamedItem(LPCOLESTR pstrName, DWORD dwFlags)
{
HRESULT res;
IUnknown *punk = NULL;
ITypeInfo *ti = NULL;
TSRMLS_FETCH();
if (tsrm_thread_id() != m_enginethread)
return marshal_call(this, APHP_AddNamedItem, 2, pstrName, dwFlags);
TWideString name(pstrName);
trace("AddNamedItem: %s (%08x) m_pass=%08x\n", name.ansi_string(), dwFlags, m_pass);
res = m_pass->GetItemInfo(pstrName, SCRIPTINFO_IUNKNOWN, &punk, &ti);
if (SUCCEEDED(res)) {
IDispatch *disp = NULL;
trace("ADD_NAMED_ITEM\n");
res = punk->QueryInterface(IID_IDispatch, (void**)&disp);
if (SUCCEEDED(res) && disp) {
add_to_global_namespace(disp, dwFlags, name.ansi_string() TSRMLS_CC);
disp->Release();
} else {
trace("Ouch: failed to get IDispatch for %s from GIT '%s'\n", name.ansi_string(), php_win_err(res));
}
} else {
trace("failed to get named item, %s", php_win_err(res));
}
return res;
}
/* Bind to a type library */
STDMETHODIMP TPHPScriptingEngine::AddTypeLib(
/* [in] */ REFGUID rguidTypeLib,
/* [in] */ DWORD dwMajor,
/* [in] */ DWORD dwMinor,
/* [in] */ DWORD dwFlags)
{
HRESULT ret;
ITypeLib *TypeLib;
TSRMLS_FETCH();
if (tsrm_thread_id() != m_enginethread)
return marshal_call(this, APHP_AddTypeLib, 4, rguidTypeLib, dwMajor, dwMinor, dwFlags);
ENGINE_THREAD_ONLY(IActiveScript, AddTypeLib);
trace("AddTypeLib\n");
ret = LoadRegTypeLib(rguidTypeLib, (USHORT)dwMajor, (USHORT)dwMinor, LANG_NEUTRAL, &TypeLib);
if (SUCCEEDED(ret)) {
php_com_import_typelib(TypeLib, CONST_CS, CP_ACP TSRMLS_CC);
TypeLib->Release();
}
return ret;
}
/* Returns an object representing the PHP Scripting Engine.
* Optionally, a client can request a particular item directly.
* For the moment, we only do the bare minimum amount of work
* for the engine to work correctly; we can flesh out this part
* a little later. */
STDMETHODIMP TPHPScriptingEngine::GetScriptDispatch(
/* [in] */ LPCOLESTR pstrItemName,
/* [out] */ IDispatch **ppdisp)
{
zend_function *func = NULL;
TSRMLS_FETCH();
if (tsrm_thread_id() != m_enginethread) {
return marshal_call(this, APHP_GetScriptDispatch, 2, pstrItemName, ppdisp);
}
*ppdisp = NULL;
if (pstrItemName != NULL) {
zval **tmp;
TWideString itemname(pstrItemName);
trace("GetScriptDispatch %s\n", itemname.ansi_string());
/* Get that item from the global namespace.
* If it is an object, export it as a dispatchable object.
* */
if (zend_hash_find(&EG(symbol_table), itemname.ansi_string(),
itemname.ansi_len() + 1, (void**)&tmp) == SUCCESS) {
if (Z_TYPE_PP(tmp) == IS_OBJECT) {
*ppdisp = php_com_wrapper_export(*tmp TSRMLS_CC);
}
} else if (zend_hash_find(EG(function_table), itemname.ansi_string(),
itemname.ansi_len() + 1, (void**)&func) == SUCCESS) {
trace("The host wants a function, but we don't have one\n");
}
} else {
trace("GetScriptDispatch NULL\n");
/* This object represents PHP global namespace */
*ppdisp = (IDispatch*)this;
}
if (*ppdisp) {
return S_OK;
}
return S_FALSE;
}
STDMETHODIMP TPHPScriptingEngine::GetCurrentScriptThreadID(
/* [out] */ SCRIPTTHREADID *pstidThread)
{
trace("%08x: GetCurrentScriptThreadID()\n", this);
*pstidThread = GetCurrentThreadId();//m_enginethread;
return S_OK;
}
STDMETHODIMP TPHPScriptingEngine::GetScriptThreadID(
/* [in] */ DWORD dwWin32ThreadId,
/* [out] */ SCRIPTTHREADID *pstidThread)
{
trace("%08x: GetScriptThreadID()\n", this);
*pstidThread = dwWin32ThreadId;
return S_OK;
}
STDMETHODIMP TPHPScriptingEngine::GetScriptThreadState(
/* [in] */ SCRIPTTHREADID stidThread,
/* [out] */ SCRIPTTHREADSTATE *pstsState)
{
trace("%08x: GetScriptThreadState()\n", this);
*pstsState = SCRIPTTHREADSTATE_NOTINSCRIPT;
switch(stidThread) {
case SCRIPTTHREADID_BASE:
stidThread = m_basethread;
break;
case SCRIPTTHREADID_CURRENT:
stidThread = m_enginethread;
break;
};
if (stidThread == m_basethread) {
*pstsState = SCRIPTTHREADSTATE_NOTINSCRIPT;
} else if (stidThread == m_enginethread) {
*pstsState = SCRIPTTHREADSTATE_NOTINSCRIPT;
}
return S_OK;
}
STDMETHODIMP TPHPScriptingEngine::InterruptScriptThread(
/* [in] */ SCRIPTTHREADID stidThread,
/* [in] */ const EXCEPINFO *pexcepinfo,
/* [in] */ DWORD dwFlags)
{
/* do not serialize this method, or call into the script site */
trace("%08x: InterruptScriptThread()\n", this);
return S_OK;
}
/* Clone is essential when running under Windows Script Host.
* It creates an engine to parse the code. Once it is parsed,
* the host clones other engines from the original and runs those.
* It is intended to be a fast method of running the same script
* multiple times in multiple threads. */
STDMETHODIMP TPHPScriptingEngine::Clone(
/* [out] */ IActiveScript **ppscript)
{
HRESULT ret = E_FAIL;
IUnknown *punk;
trace("************* Clone this[%08x]\n", this);
punk = create_scripting_engine(this);
if (punk) {
ret = punk->QueryInterface(IID_IActiveScript, (void**)ppscript);
punk->Release();
}
return ret;
}
STDMETHODIMP TPHPScriptingEngine::InitNew( void)
{
TSRMLS_FETCH();
trace("InitNew() this=%08x\n", this);
if (m_done_init) {
if (tsrm_thread_id() != m_enginethread)
return marshal_call(this, APHP_InitNew, 0);
zend_hash_destroy(&m_frags);
php_request_shutdown(NULL);
setup_engine_state();
}
return S_OK;
}
STDMETHODIMP TPHPScriptingEngine::AddScriptlet(
/* [in] */ LPCOLESTR pstrDefaultName,
/* [in] */ LPCOLESTR pstrCode,
/* [in] */ LPCOLESTR pstrItemName,
/* [in] */ LPCOLESTR pstrSubItemName,
/* [in] */ LPCOLESTR pstrEventName,
/* [in] */ LPCOLESTR pstrDelimiter,
/* [in] */ DWORD dwSourceContextCookie,
/* [in] */ ULONG ulStartingLineNumber,
/* [in] */ DWORD dwFlags,
/* [out] */ BSTR *pbstrName,
/* [out] */ EXCEPINFO *pexcepinfo)
{
HRESULT ret;
TSRMLS_FETCH();
if (tsrm_thread_id() != m_enginethread)
return marshal_call(this, APHP_AddScriptlet, 11, pstrDefaultName, pstrCode, pstrItemName, pstrSubItemName, pstrEventName, pstrDelimiter, dwSourceContextCookie, ulStartingLineNumber, dwFlags, pbstrName, pexcepinfo);
ENGINE_THREAD_ONLY(IActiveScriptParse, AddScriptlet);
trace("AddScriptlet\n");
/* Parse/compile a chunk of script that will act as an event handler.
* If the host supports IActiveScriptParseProcedure, this code will
* not be called.
* The docs are (typically) vague: AFAICT, once the code has been
* compiled, we are supposed to arrange for an IConnectionPoint
* advisory connection to the item/subitem, once the script
* moves into SCRIPTSTATE_CONNECTED.
* That's a lot of work!
*
* FIXME: this is currently almost useless
* */
TWideString
default_name(pstrDefaultName),
code(pstrCode),
item_name(pstrItemName),
sub_item_name(pstrSubItemName),
event_name(pstrEventName),
delimiter(pstrDelimiter);
/* lets invent a function name for the scriptlet */
char sname[256];
if (pstrDefaultName && !function_exists(default_name.ansi_string() TSRMLS_CC))
strcpy(sname, default_name.ansi_string());
else {
sname[0] = 0;
strcat(sname, "__");
if (pstrItemName) {
strcat(sname, item_name.ansi_string());
strcat(sname, "_");
}
if (pstrSubItemName) {
strcat(sname, sub_item_name.ansi_string());
strcat(sname, "_");
}
if (pstrEventName)
strcat(sname, event_name.ansi_string());
}
trace("%08x: AddScriptlet: [%s]\n state=%s\n name=%s\n code=%s\n item=%s\n subitem=%s\n event=%s\n delim=%s\n line=%d\n",
this, sname,
scriptstate_to_string(m_scriptstate),
default_name.safe_ansi_string(), code.safe_ansi_string(), item_name.safe_ansi_string(),
sub_item_name.safe_ansi_string(), event_name.safe_ansi_string(), delimiter.safe_ansi_string(),
ulStartingLineNumber);
code_frag *frag = compile_code_fragment(
FRAG_SCRIPTLET,
sname,
pstrCode,
ulStartingLineNumber,
pexcepinfo,
this
TSRMLS_CC);
if (frag) {
frag->persistent = (dwFlags & SCRIPTTEXT_ISPERSISTENT);
zend_hash_next_index_insert(&m_frags, &frag, sizeof(code_frag*), NULL);
/*
ScriptProcedureDispatch *disp = new ScriptProcedureDispatch;
disp->AddRef();
disp->m_frag = frag;
disp->m_procflags = info->dwFlags;
disp->m_engine = this;
frag->ptr = disp;
*ppdisp = disp;
*/
ret = S_OK;
} else {
ret = DISP_E_EXCEPTION;
}
*pbstrName = TWideString::bstr_from_ansi(sname);
trace("%08x: done with scriptlet %s\n", this, sname);
return ret;
}
STDMETHODIMP TPHPScriptingEngine::ParseScriptText(
/* [in] */ LPCOLESTR pstrCode,
/* [in] */ LPCOLESTR pstrItemName,
/* [in] */ IUnknown *punkContext,
/* [in] */ LPCOLESTR pstrDelimiter,
/* [in] */ DWORD dwSourceContextCookie,
/* [in] */ ULONG ulStartingLineNumber,
/* [in] */ DWORD dwFlags,
/* [out] */ VARIANT *pvarResult,
/* [out] */ EXCEPINFO *pexcepinfo)
{
trace("ParseScriptText\n");
int doexec;
TWideString
code(pstrCode),
item_name(pstrItemName),
delimiter(pstrDelimiter);
HRESULT ret, dummy;
TSRMLS_FETCH();
trace("pstrCode=%p pstrItemName=%p punkContext=%p pstrDelimiter=%p pvarResult=%p pexcepinfo=%p\n",
pstrCode, pstrItemName, punkContext, pstrDelimiter, pvarResult, pexcepinfo);
if (tsrm_thread_id() != m_enginethread) {
return marshal_call(this, APHP_ParseScriptText, 9,
pstrCode, pstrItemName, punkContext, pstrDelimiter,
dwSourceContextCookie, ulStartingLineNumber,
dwFlags, pvarResult, pexcepinfo);
}
trace("%08x: ParseScriptText:\n state=%s\ncode=%.*s\n item=%s\n delim=%s\n line=%d\n",
this, scriptstate_to_string(m_scriptstate),
code.m_ansi_strlen,
code.safe_ansi_string(), item_name.safe_ansi_string(), delimiter.safe_ansi_string(),
ulStartingLineNumber);
code_frag *frag = compile_code_fragment(
FRAG_MAIN,
dwFlags & SCRIPTTEXT_ISEXPRESSION ? FRAG_CREATE_FUNC : NULL,
pstrCode,
ulStartingLineNumber,
pexcepinfo,
this
TSRMLS_CC);
doexec = (dwFlags & SCRIPTTEXT_ISEXPRESSION) ||
m_scriptstate == SCRIPTSTATE_STARTED ||
m_scriptstate == SCRIPTSTATE_CONNECTED ||
m_scriptstate == SCRIPTSTATE_DISCONNECTED;
if (frag) {
frag->persistent = (dwFlags & SCRIPTTEXT_ISPERSISTENT);
ret = S_OK;
if (dwFlags & SCRIPTTEXT_ISEXPRESSION) {
if (m_scriptstate == SCRIPTSTATE_INITIALIZED) {
/* not allowed to execute code in this state */
ret = E_UNEXPECTED;
doexec = 0;
}
}
if (doexec) {
/* execute the code as an expression */
ASS_CALL(dummy, OnEnterScript, ());
if (!execute_code_fragment(frag, pvarResult, pexcepinfo TSRMLS_CC))
ret = DISP_E_EXCEPTION;
ASS_CALL(dummy, OnLeaveScript, ());
}
zend_hash_next_index_insert(&m_frags, &frag, sizeof(code_frag*), NULL);
} else {
ret = DISP_E_EXCEPTION;
}
if (pvarResult) {
VariantInit(pvarResult);
}
return ret;
}
STDMETHODIMP TPHPScriptingEngine::ParseProcedureText(
/* [in] */ LPCOLESTR pstrCode,
/* [in] */ LPCOLESTR pstrFormalParams,
/* [in] */ LPCOLESTR pstrProcedureName,
/* [in] */ LPCOLESTR pstrItemName,
/* [in] */ IUnknown *punkContext,
/* [in] */ LPCOLESTR pstrDelimiter,
/* [in] */ DWORD dwSourceContextCookie,
/* [in] */ ULONG ulStartingLineNumber,
/* [in] */ DWORD dwFlags,
/* [out] */ IDispatch **ppdisp)
{
TSRMLS_FETCH();
trace("ParseProcedureText\n");
if (tsrm_thread_id() != m_enginethread)
return marshal_call(this, APHP_ParseProcedureText, 10,
pstrCode, pstrFormalParams, pstrProcedureName, pstrItemName,
punkContext, pstrDelimiter, dwSourceContextCookie,
ulStartingLineNumber, dwFlags, ppdisp);
ENGINE_THREAD_ONLY(IActiveScriptParseProcedure, ParseProcedureText);
/* This is the IActiveScriptParseProcedure implementation.
* IE uses this to request for an IDispatch that it will invoke in
* response to some event, and tells us the code that it wants to
* run.
* We compile the code and pass it back a dispatch object.
* The object will then serialize access to the engine thread and
* execute the opcodes */
TWideString
formal_params(pstrFormalParams),
procedure_name(pstrProcedureName),
item_name(pstrItemName),
delimiter(pstrDelimiter);
HRESULT ret;
trace("%08x: ParseProc:\n state=%s\nparams=%s\nproc=%s\nitem=%s\n delim=%s\n line=%d\n",
this, scriptstate_to_string(m_scriptstate),
formal_params.ansi_string(), procedure_name.ansi_string(),
item_name.safe_ansi_string(), delimiter.safe_ansi_string(),
ulStartingLineNumber);
code_frag *frag = compile_code_fragment(
FRAG_PROCEDURE,
NULL,
pstrCode,
ulStartingLineNumber,
NULL,
this
TSRMLS_CC);
if (frag) {
frag->persistent = (dwFlags & SCRIPTTEXT_ISPERSISTENT);
zend_hash_next_index_insert(&m_frags, &frag, sizeof(code_frag*), NULL);
ScriptProcedureDispatch *disp = new ScriptProcedureDispatch;
disp->m_frag = frag;
disp->m_procflags = dwFlags;
disp->m_engine = this;
frag->ptr = disp;
*ppdisp = (IDispatch*)disp;
} else {
ret = DISP_E_EXCEPTION;
}
trace("ParseProc: ret=%08x disp=%08x\n", ret, *ppdisp);
return ret;
}
STDMETHODIMP TPHPScriptingEngine::GetInterfaceSafetyOptions(
/* [in] */ REFIID riid, // Interface that we want options for
/* [out] */ DWORD *pdwSupportedOptions, // Options meaningful on this interface
/* [out] */ DWORD *pdwEnabledOptions) // current option values on this interface
{
/* PHP isn't really safe for untrusted anything */
trace("GetInterfaceSafetyOptions called\n");
*pdwSupportedOptions = INTERFACESAFE_FOR_UNTRUSTED_DATA|INTERFACESAFE_FOR_UNTRUSTED_CALLER;
*pdwEnabledOptions = 0;
return S_OK;
}
STDMETHODIMP TPHPScriptingEngine::SetInterfaceSafetyOptions(
/* [in] */ REFIID riid, // Interface to set options for
/* [in] */ DWORD dwOptionSetMask, // Options to change
/* [in] */ DWORD dwEnabledOptions) // New option values
{
/* PHP isn't really safe for untrusted anything */
trace("SetInterfaceSafetyOptions mask=%08x enabled=%08x\n", dwOptionSetMask, dwEnabledOptions);
if (dwEnabledOptions == 0) {
return S_OK;
}
trace("can't set those options; we're not safe enough\n");
return E_FAIL;
}
#if 0
STDMETHODIMP TPHPScriptingEngine::GetUnmarshalClass(
REFIID riid, void *pv, DWORD dwDestContext, void *pvDestContext, DWORD mshlflags, CLSID *pCid)
{
return E_NOTIMPL;
}
STDMETHODIMP TPHPScriptingEngine::GetMarshalSizeMax(
REFIID riid, void *pv, DWORD dwDestContext, void *pvDestContext, DWORD mshlflags, ULONG *pSize)
{
return E_NOTIMPL;
}
STDMETHODIMP TPHPScriptingEngine::MarshalInterface(
IStream *pStm, REFIID riid, void *pv, DWORD dwDestContext, void *pvDestContext, DWORD mshflags)
{
return E_NOTIMPL;
}
STDMETHODIMP TPHPScriptingEngine::UnmarshalInterface(
IStream *pStm, REFIID riid, void **ppv)
{
return E_NOTIMPL;
}
STDMETHODIMP TPHPScriptingEngine::ReleaseMarshalData(IStream *pStm)
{
return E_NOTIMPL;
}
STDMETHODIMP TPHPScriptingEngine::DisconnectObject(DWORD dwReserved)
{
return E_NOTIMPL;
}
#endif
class TActiveScriptError:
public IActiveScriptError
{
protected:
volatile LONG m_refcount;
public:
/* IUnknown */
STDMETHODIMP QueryInterface(REFIID iid, void **ppvObject) {
*ppvObject = NULL;
if (IsEqualGUID(IID_IActiveScriptError, iid)) {
*ppvObject = (IActiveScriptError*)this;
} else if (IsEqualGUID(IID_IUnknown, iid)) {
*ppvObject = this;
}
if (*ppvObject) {
AddRef();
return S_OK;
}
return E_NOINTERFACE;
}
STDMETHODIMP_(DWORD) AddRef(void) {
return InterlockedIncrement(const_cast<long*> (&m_refcount));
}
STDMETHODIMP_(DWORD) Release(void) {
DWORD ret = InterlockedDecrement(const_cast<long*> (&m_refcount));
trace("Release: errobj refcount=%d\n", ret);
if (ret == 0)
delete this;
return ret;
}
HRESULT STDMETHODCALLTYPE GetExceptionInfo(
/* [out] */ EXCEPINFO *pexcepinfo)
{
memset(pexcepinfo, 0, sizeof(EXCEPINFO));
pexcepinfo->bstrDescription = SysAllocString(m_message);
pexcepinfo->bstrSource = SysAllocString(m_filename);
pexcepinfo->wCode = 1000;
return S_OK;
}
HRESULT STDMETHODCALLTYPE GetSourcePosition(
/* [out] */ DWORD *pdwSourceContext,
/* [out] */ ULONG *pulLineNumber,
/* [out] */ LONG *plCharacterPosition)
{
if (pdwSourceContext)
*pdwSourceContext = 0;
if (pulLineNumber)
*pulLineNumber = m_lineno;
if (plCharacterPosition)
*plCharacterPosition = 0;
return S_OK;
}
HRESULT STDMETHODCALLTYPE GetSourceLineText(
/* [out] */ BSTR *pbstrSourceLine)
{
*pbstrSourceLine = NULL;
return E_FAIL;
}
BSTR m_filename, m_message;
UINT m_lineno;
TActiveScriptError(const char *filename, const uint lineno, const char *message)
{
m_refcount = 0; /* start with zero refcount because this object is passed
* directly to the script site; it will call addref */
m_filename = TWideString::bstr_from_ansi((char*)filename);
m_message = TWideString::bstr_from_ansi((char*)message);
m_lineno = lineno;
}
~TActiveScriptError()
{
trace("%08x: cleaning up error object\n", this);
SysFreeString(m_filename);
SysFreeString(m_message);
}
};
extern "C"
void activescript_error_handler(int type, const char *error_filename,
const uint error_lineno, const char *format, va_list args)
{
TSRMLS_FETCH();
char *buf;
int buflen;
HRESULT dummy;
TPHPScriptingEngine *engine = (TPHPScriptingEngine*)SG(server_context);
/* ugly way to detect an exception for an eval'd fragment */
if (type == E_ERROR && EG(exception) && strstr("Exception thrown without a stack frame", format)) {
zend_exception_error(EG(exception) TSRMLS_CC);
/* NOTREACHED -- recursive E_ERROR */
} else {
buflen = vspprintf(&buf, PG(log_errors_max_len), format, args);
trace("%08x: PHP Error: %s\n", engine, buf);
}
TActiveScriptError *eobj = new TActiveScriptError(error_filename, error_lineno, buf);
trace("raising error object!\n");
if (engine->m_pass) {
ASS_CALL_(dummy, engine, OnScriptError, (eobj));
}
switch(type) {
case E_ERROR:
case E_CORE_ERROR:
case E_COMPILE_ERROR:
case E_USER_ERROR:
case E_PARSE:
/* now throw the exception to abort execution */
zend_bailout();
break;
}
efree(buf);
}
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