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/*
+----------------------------------------------------------------------+
| PHP Version 7 |
+----------------------------------------------------------------------+
| Copyright (c) 1997-2016 The PHP Group |
+----------------------------------------------------------------------+
| This source file is subject to version 3.01 of the PHP license, |
| that is bundled with this package in the file LICENSE, and is |
| available through the world-wide-web at the following url: |
| http://www.php.net/license/3_01.txt |
| If you did not receive a copy of the PHP license and are unable to |
| obtain it through the world-wide-web, please send a note to |
| license@php.net so we can mail you a copy immediately. |
+----------------------------------------------------------------------+
| Author: Wez Furlong <wez@thebrainroom.com> |
+----------------------------------------------------------------------+
*/
/* $Id$ */
/* Infrastructure for working with persistent COM objects.
* Implements: IStream* wrapper for PHP streams.
* TODO: Magic __wakeup and __sleep handlers for serialization
* (can wait till 5.1) */
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include "php.h"
#include "php_ini.h"
#include "ext/standard/info.h"
#include "php_com_dotnet.h"
#include "php_com_dotnet_internal.h"
#include "Zend/zend_exceptions.h"
/* {{{ expose php_stream as a COM IStream */
typedef struct {
CONST_VTBL struct IStreamVtbl *lpVtbl;
DWORD engine_thread;
LONG refcount;
php_stream *stream;
zend_resource *res;
} php_istream;
static int le_istream;
static void istream_destructor(php_istream *stm);
static void istream_dtor(zend_resource *rsrc)
{
php_istream *stm = (php_istream *)rsrc->ptr;
istream_destructor(stm);
}
#define FETCH_STM() \
php_istream *stm = (php_istream*)This; \
if (GetCurrentThreadId() != stm->engine_thread) \
return RPC_E_WRONG_THREAD;
#define FETCH_STM_EX() \
php_istream *stm = (php_istream*)This; \
if (GetCurrentThreadId() != stm->engine_thread) \
return RPC_E_WRONG_THREAD;
static HRESULT STDMETHODCALLTYPE stm_queryinterface(
IStream *This,
/* [in] */ REFIID riid,
/* [iid_is][out] */ void **ppvObject)
{
FETCH_STM_EX();
if (IsEqualGUID(&IID_IUnknown, riid) ||
IsEqualGUID(&IID_IStream, riid)) {
*ppvObject = This;
InterlockedIncrement(&stm->refcount);
return S_OK;
}
*ppvObject = NULL;
return E_NOINTERFACE;
}
static ULONG STDMETHODCALLTYPE stm_addref(IStream *This)
{
FETCH_STM_EX();
return InterlockedIncrement(&stm->refcount);
}
static ULONG STDMETHODCALLTYPE stm_release(IStream *This)
{
ULONG ret;
FETCH_STM();
ret = InterlockedDecrement(&stm->refcount);
if (ret == 0) {
/* destroy it */
if (stm->res)
zend_list_delete(stm->res);
}
return ret;
}
static HRESULT STDMETHODCALLTYPE stm_read(IStream *This, void *pv, ULONG cb, ULONG *pcbRead)
{
ULONG nread;
FETCH_STM();
nread = (ULONG)php_stream_read(stm->stream, pv, cb);
if (pcbRead) {
*pcbRead = nread > 0 ? nread : 0;
}
if (nread > 0) {
return S_OK;
}
return S_FALSE;
}
static HRESULT STDMETHODCALLTYPE stm_write(IStream *This, void const *pv, ULONG cb, ULONG *pcbWritten)
{
ULONG nwrote;
FETCH_STM();
nwrote = (ULONG)php_stream_write(stm->stream, pv, cb);
if (pcbWritten) {
*pcbWritten = nwrote > 0 ? nwrote : 0;
}
if (nwrote > 0) {
return S_OK;
}
return S_FALSE;
}
static HRESULT STDMETHODCALLTYPE stm_seek(IStream *This, LARGE_INTEGER dlibMove,
DWORD dwOrigin, ULARGE_INTEGER *plibNewPosition)
{
off_t offset;
int whence;
int ret;
FETCH_STM();
switch (dwOrigin) {
case STREAM_SEEK_SET: whence = SEEK_SET; break;
case STREAM_SEEK_CUR: whence = SEEK_CUR; break;
case STREAM_SEEK_END: whence = SEEK_END; break;
default:
return STG_E_INVALIDFUNCTION;
}
if (dlibMove.HighPart) {
/* we don't support 64-bit offsets */
return STG_E_INVALIDFUNCTION;
}
offset = (off_t) dlibMove.QuadPart;
ret = php_stream_seek(stm->stream, offset, whence);
if (plibNewPosition) {
plibNewPosition->QuadPart = (ULONGLONG)(ret >= 0 ? ret : 0);
}
return ret >= 0 ? S_OK : STG_E_INVALIDFUNCTION;
}
static HRESULT STDMETHODCALLTYPE stm_set_size(IStream *This, ULARGE_INTEGER libNewSize)
{
FETCH_STM();
if (libNewSize.HighPart) {
return STG_E_INVALIDFUNCTION;
}
if (php_stream_truncate_supported(stm->stream)) {
int ret = php_stream_truncate_set_size(stm->stream, (size_t)libNewSize.QuadPart);
if (ret == 0) {
return S_OK;
}
}
return STG_E_INVALIDFUNCTION;
}
static HRESULT STDMETHODCALLTYPE stm_copy_to(IStream *This, IStream *pstm, ULARGE_INTEGER cb,
ULARGE_INTEGER *pcbRead, ULARGE_INTEGER *pcbWritten)
{
FETCH_STM_EX();
return E_NOTIMPL;
}
static HRESULT STDMETHODCALLTYPE stm_commit(IStream *This, DWORD grfCommitFlags)
{
FETCH_STM();
php_stream_flush(stm->stream);
return S_OK;
}
static HRESULT STDMETHODCALLTYPE stm_revert(IStream *This)
{
/* NOP */
return S_OK;
}
static HRESULT STDMETHODCALLTYPE stm_lock_region(IStream *This,
ULARGE_INTEGER libOffset, ULARGE_INTEGER cb, DWORD lockType)
{
return STG_E_INVALIDFUNCTION;
}
static HRESULT STDMETHODCALLTYPE stm_unlock_region(IStream *This,
ULARGE_INTEGER libOffset, ULARGE_INTEGER cb, DWORD lockType)
{
return STG_E_INVALIDFUNCTION;
}
static HRESULT STDMETHODCALLTYPE stm_stat(IStream *This,
STATSTG *pstatstg, DWORD grfStatFlag)
{
return STG_E_INVALIDFUNCTION;
}
static HRESULT STDMETHODCALLTYPE stm_clone(IStream *This, IStream **ppstm)
{
return STG_E_INVALIDFUNCTION;
}
static struct IStreamVtbl php_istream_vtbl = {
stm_queryinterface,
stm_addref,
stm_release,
stm_read,
stm_write,
stm_seek,
stm_set_size,
stm_copy_to,
stm_commit,
stm_revert,
stm_lock_region,
stm_unlock_region,
stm_stat,
stm_clone
};
static void istream_destructor(php_istream *stm)
{
if (stm->res) {
zend_resource *res = stm->res;
stm->res = NULL;
zend_list_delete(res);
return;
}
if (stm->refcount > 0) {
CoDisconnectObject((IUnknown*)stm, 0);
}
zend_list_delete(stm->stream->res);
CoTaskMemFree(stm);
}
/* }}} */
PHP_COM_DOTNET_API IStream *php_com_wrapper_export_stream(php_stream *stream)
{
php_istream *stm = (php_istream*)CoTaskMemAlloc(sizeof(*stm));
zval *tmp;
if (stm == NULL)
return NULL;
memset(stm, 0, sizeof(*stm));
stm->engine_thread = GetCurrentThreadId();
stm->lpVtbl = &php_istream_vtbl;
stm->refcount = 1;
stm->stream = stream;
GC_REFCOUNT(stream->res)++;
tmp = zend_list_insert(stm, le_istream);
stm->res = Z_RES_P(tmp);
return (IStream*)stm;
}
#define CPH_ME(fname, arginfo) PHP_ME(com_persist, fname, arginfo, ZEND_ACC_PUBLIC)
#define CPH_SME(fname, arginfo) PHP_ME(com_persist, fname, arginfo, ZEND_ACC_ALLOW_STATIC|ZEND_ACC_PUBLIC)
#define CPH_METHOD(fname) static PHP_METHOD(com_persist, fname)
#define CPH_FETCH() php_com_persist_helper *helper = (php_com_persist_helper*)Z_OBJ_P(getThis());
#define CPH_NO_OBJ() if (helper->unk == NULL) { php_com_throw_exception(E_INVALIDARG, "No COM object is associated with this helper instance"); return; }
typedef struct {
zend_object std;
long codepage;
IUnknown *unk;
IPersistStream *ips;
IPersistStreamInit *ipsi;
IPersistFile *ipf;
} php_com_persist_helper;
static zend_object_handlers helper_handlers;
static zend_class_entry *helper_ce;
static inline HRESULT get_persist_stream(php_com_persist_helper *helper)
{
if (!helper->ips && helper->unk) {
return IUnknown_QueryInterface(helper->unk, &IID_IPersistStream, &helper->ips);
}
return helper->ips ? S_OK : E_NOTIMPL;
}
static inline HRESULT get_persist_stream_init(php_com_persist_helper *helper)
{
if (!helper->ipsi && helper->unk) {
return IUnknown_QueryInterface(helper->unk, &IID_IPersistStreamInit, &helper->ipsi);
}
return helper->ipsi ? S_OK : E_NOTIMPL;
}
static inline HRESULT get_persist_file(php_com_persist_helper *helper)
{
if (!helper->ipf && helper->unk) {
return IUnknown_QueryInterface(helper->unk, &IID_IPersistFile, &helper->ipf);
}
return helper->ipf ? S_OK : E_NOTIMPL;
}
/* {{{ proto string COMPersistHelper::GetCurFile()
Determines the filename into which an object will be saved, or false if none is set, via IPersistFile::GetCurFile */
CPH_METHOD(GetCurFileName)
{
HRESULT res;
OLECHAR *olename = NULL;
CPH_FETCH();
CPH_NO_OBJ();
res = get_persist_file(helper);
if (helper->ipf) {
res = IPersistFile_GetCurFile(helper->ipf, &olename);
if (res == S_OK) {
size_t len;
char *str = php_com_olestring_to_string(olename,
&len, helper->codepage);
RETVAL_STRINGL(str, len);
// TODO: avoid reallocarion???
efree(str);
CoTaskMemFree(olename);
return;
} else if (res == S_FALSE) {
CoTaskMemFree(olename);
RETURN_FALSE;
}
php_com_throw_exception(res, NULL);
} else {
php_com_throw_exception(res, NULL);
}
}
/* }}} */
/* {{{ proto bool COMPersistHelper::SaveToFile(string filename [, bool remember])
Persist object data to file, via IPersistFile::Save */
CPH_METHOD(SaveToFile)
{
HRESULT res;
char *filename, *fullpath = NULL;
size_t filename_len;
zend_bool remember = TRUE;
OLECHAR *olefilename = NULL;
CPH_FETCH();
CPH_NO_OBJ();
res = get_persist_file(helper);
if (helper->ipf) {
if (FAILURE == zend_parse_parameters(ZEND_NUM_ARGS(), "p!|b",
&filename, &filename_len, &remember)) {
php_com_throw_exception(E_INVALIDARG, "Invalid arguments");
return;
}
if (filename) {
fullpath = expand_filepath(filename, NULL);
if (!fullpath) {
RETURN_FALSE;
}
if (php_check_open_basedir(fullpath)) {
efree(fullpath);
RETURN_FALSE;
}
olefilename = php_com_string_to_olestring(filename, strlen(fullpath), helper->codepage);
efree(fullpath);
}
res = IPersistFile_Save(helper->ipf, olefilename, remember);
if (SUCCEEDED(res)) {
if (!olefilename) {
res = IPersistFile_GetCurFile(helper->ipf, &olefilename);
if (S_OK == res) {
IPersistFile_SaveCompleted(helper->ipf, olefilename);
CoTaskMemFree(olefilename);
olefilename = NULL;
}
} else if (remember) {
IPersistFile_SaveCompleted(helper->ipf, olefilename);
}
}
if (olefilename) {
efree(olefilename);
}
if (FAILED(res)) {
php_com_throw_exception(res, NULL);
}
} else {
php_com_throw_exception(res, NULL);
}
}
/* }}} */
/* {{{ proto bool COMPersistHelper::LoadFromFile(string filename [, int flags])
Load object data from file, via IPersistFile::Load */
CPH_METHOD(LoadFromFile)
{
HRESULT res;
char *filename, *fullpath;
size_t filename_len;
zend_long flags = 0;
OLECHAR *olefilename;
CPH_FETCH();
CPH_NO_OBJ();
res = get_persist_file(helper);
if (helper->ipf) {
if (FAILURE == zend_parse_parameters(ZEND_NUM_ARGS(), "p|l",
&filename, &filename_len, &flags)) {
php_com_throw_exception(E_INVALIDARG, "Invalid arguments");
return;
}
if (!(fullpath = expand_filepath(filename, NULL))) {
RETURN_FALSE;
}
if (php_check_open_basedir(fullpath)) {
efree(fullpath);
RETURN_FALSE;
}
olefilename = php_com_string_to_olestring(fullpath, strlen(fullpath), helper->codepage);
efree(fullpath);
res = IPersistFile_Load(helper->ipf, olefilename, (DWORD)flags);
efree(olefilename);
if (FAILED(res)) {
php_com_throw_exception(res, NULL);
}
} else {
php_com_throw_exception(res, NULL);
}
}
/* }}} */
/* {{{ proto int COMPersistHelper::GetMaxStreamSize()
Gets maximum stream size required to store the object data, via IPersistStream::GetSizeMax (or IPersistStreamInit::GetSizeMax) */
CPH_METHOD(GetMaxStreamSize)
{
HRESULT res;
ULARGE_INTEGER size;
CPH_FETCH();
CPH_NO_OBJ();
res = get_persist_stream_init(helper);
if (helper->ipsi) {
res = IPersistStreamInit_GetSizeMax(helper->ipsi, &size);
} else {
res = get_persist_stream(helper);
if (helper->ips) {
res = IPersistStream_GetSizeMax(helper->ips, &size);
} else {
php_com_throw_exception(res, NULL);
return;
}
}
if (res != S_OK) {
php_com_throw_exception(res, NULL);
} else {
/* TODO: handle 64 bit properly */
RETURN_LONG((zend_long)size.QuadPart);
}
}
/* }}} */
/* {{{ proto int COMPersistHelper::InitNew()
Initializes the object to a default state, via IPersistStreamInit::InitNew */
CPH_METHOD(InitNew)
{
HRESULT res;
CPH_FETCH();
CPH_NO_OBJ();
res = get_persist_stream_init(helper);
if (helper->ipsi) {
res = IPersistStreamInit_InitNew(helper->ipsi);
if (res != S_OK) {
php_com_throw_exception(res, NULL);
} else {
RETURN_TRUE;
}
} else {
php_com_throw_exception(res, NULL);
}
}
/* }}} */
/* {{{ proto mixed COMPersistHelper::LoadFromStream(resource stream)
Initializes an object from the stream where it was previously saved, via IPersistStream::Load or OleLoadFromStream */
CPH_METHOD(LoadFromStream)
{
zval *zstm;
php_stream *stream;
IStream *stm = NULL;
HRESULT res;
CPH_FETCH();
if (FAILURE == zend_parse_parameters(ZEND_NUM_ARGS(), "r", &zstm)) {
php_com_throw_exception(E_INVALIDARG, "invalid arguments");
return;
}
php_stream_from_zval_no_verify(stream, zstm);
if (stream == NULL) {
php_com_throw_exception(E_INVALIDARG, "expected a stream");
return;
}
stm = php_com_wrapper_export_stream(stream);
if (stm == NULL) {
php_com_throw_exception(E_UNEXPECTED, "failed to wrap stream");
return;
}
res = S_OK;
RETVAL_TRUE;
if (helper->unk == NULL) {
IDispatch *disp = NULL;
/* we need to create an object and load using OleLoadFromStream */
res = OleLoadFromStream(stm, &IID_IDispatch, &disp);
if (SUCCEEDED(res)) {
php_com_wrap_dispatch(return_value, disp, COMG(code_page));
}
} else {
res = get_persist_stream_init(helper);
if (helper->ipsi) {
res = IPersistStreamInit_Load(helper->ipsi, stm);
} else {
res = get_persist_stream(helper);
if (helper->ips) {
res = IPersistStreamInit_Load(helper->ipsi, stm);
}
}
}
IStream_Release(stm);
if (FAILED(res)) {
php_com_throw_exception(res, NULL);
RETURN_NULL();
}
}
/* }}} */
/* {{{ proto int COMPersistHelper::SaveToStream(resource stream)
Saves the object to a stream, via IPersistStream::Save */
CPH_METHOD(SaveToStream)
{
zval *zstm;
php_stream *stream;
IStream *stm = NULL;
HRESULT res;
CPH_FETCH();
CPH_NO_OBJ();
if (FAILURE == zend_parse_parameters(ZEND_NUM_ARGS(), "r", &zstm)) {
php_com_throw_exception(E_INVALIDARG, "invalid arguments");
return;
}
php_stream_from_zval_no_verify(stream, zstm);
if (stream == NULL) {
php_com_throw_exception(E_INVALIDARG, "expected a stream");
return;
}
stm = php_com_wrapper_export_stream(stream);
if (stm == NULL) {
php_com_throw_exception(E_UNEXPECTED, "failed to wrap stream");
return;
}
res = get_persist_stream_init(helper);
if (helper->ipsi) {
res = IPersistStreamInit_Save(helper->ipsi, stm, TRUE);
} else {
res = get_persist_stream(helper);
if (helper->ips) {
res = IPersistStream_Save(helper->ips, stm, TRUE);
}
}
IStream_Release(stm);
if (FAILED(res)) {
php_com_throw_exception(res, NULL);
return;
}
RETURN_TRUE;
}
/* }}} */
/* {{{ proto int COMPersistHelper::__construct([object com_object])
Creates a persistence helper object, usually associated with a com_object */
CPH_METHOD(__construct)
{
php_com_dotnet_object *obj = NULL;
zval *zobj = NULL;
CPH_FETCH();
if (FAILURE == zend_parse_parameters(ZEND_NUM_ARGS(), "|O!",
&zobj, php_com_variant_class_entry)) {
php_com_throw_exception(E_INVALIDARG, "invalid arguments");
return;
}
if (!zobj) {
return;
}
obj = CDNO_FETCH(zobj);
if (V_VT(&obj->v) != VT_DISPATCH || V_DISPATCH(&obj->v) == NULL) {
php_com_throw_exception(E_INVALIDARG, "parameter must represent an IDispatch COM object");
return;
}
/* it is always safe to cast an interface to IUnknown */
helper->unk = (IUnknown*)V_DISPATCH(&obj->v);
IUnknown_AddRef(helper->unk);
helper->codepage = obj->code_page;
}
/* }}} */
static const zend_function_entry com_persist_helper_methods[] = {
CPH_ME(__construct, NULL)
CPH_ME(GetCurFileName, NULL)
CPH_ME(SaveToFile, NULL)
CPH_ME(LoadFromFile, NULL)
CPH_ME(GetMaxStreamSize, NULL)
CPH_ME(InitNew, NULL)
CPH_ME(LoadFromStream, NULL)
CPH_ME(SaveToStream, NULL)
PHP_FE_END
};
static void helper_free_storage(zend_object *obj)
{
php_com_persist_helper *object = (php_com_persist_helper*)obj;
if (object->ipf) {
IPersistFile_Release(object->ipf);
}
if (object->ips) {
IPersistStream_Release(object->ips);
}
if (object->ipsi) {
IPersistStreamInit_Release(object->ipsi);
}
if (object->unk) {
IUnknown_Release(object->unk);
}
zend_object_std_dtor(&object->std);
}
static zend_object* helper_clone(zval *obj)
{
php_com_persist_helper *clone, *object = (php_com_persist_helper*)Z_OBJ_P(obj);
clone = emalloc(sizeof(*object));
memcpy(clone, object, sizeof(*object));
zend_object_std_init(&clone->std, object->std.ce);
if (clone->ipf) {
IPersistFile_AddRef(clone->ipf);
}
if (clone->ips) {
IPersistStream_AddRef(clone->ips);
}
if (clone->ipsi) {
IPersistStreamInit_AddRef(clone->ipsi);
}
if (clone->unk) {
IUnknown_AddRef(clone->unk);
}
return (zend_object*)clone;
}
static zend_object* helper_new(zend_class_entry *ce)
{
php_com_persist_helper *helper;
helper = emalloc(sizeof(*helper));
memset(helper, 0, sizeof(*helper));
zend_object_std_init(&helper->std, helper_ce);
helper->std.handlers = &helper_handlers;
return &helper->std;
}
int php_com_persist_minit(INIT_FUNC_ARGS)
{
zend_class_entry ce;
memcpy(&helper_handlers, zend_get_std_object_handlers(), sizeof(helper_handlers));
helper_handlers.free_obj = helper_free_storage;
helper_handlers.clone_obj = helper_clone;
INIT_CLASS_ENTRY(ce, "COMPersistHelper", com_persist_helper_methods);
ce.create_object = helper_new;
helper_ce = zend_register_internal_class(&ce);
helper_ce->ce_flags |= ZEND_ACC_FINAL;
le_istream = zend_register_list_destructors_ex(istream_dtor,
NULL, "com_dotnet_istream_wrapper", module_number);
return SUCCESS;
}
/*
* 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
*/
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