cpython/PC/_msi.c at 2.7 · python/cpython · GitHub

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/* Helper library for MSI creation with Python.

* Licensed to PSF under a contributor agreement.

#include <Python.h>

#include <fci.h>

#include <fcntl.h>

#include <windows.h>

#include <msi.h>

#include <msiquery.h>

#include <msidefs.h>

#include <rpc.h>

static PyObject *MSIError;

static PyObject*

uuidcreate(PyObject* obj, PyObject*args)

{

UUID result;

char *cresult;

PyObject *oresult;

/* May return ok, local only, and no address.

For local only, the documentation says we still get a uuid.

For RPC_S_UUID_NO_ADDRESS, it's not clear whether we can

use the result. */

if (UuidCreate(&result) == RPC_S_UUID_NO_ADDRESS) {

PyErr_SetString(PyExc_NotImplementedError, "processing 'no address' result");

return NULL;

}

if (UuidToString(&result, &cresult) == RPC_S_OUT_OF_MEMORY) {

PyErr_SetString(PyExc_MemoryError, "out of memory in uuidgen");

return NULL;

}

oresult = PyString_FromString(cresult);

RpcStringFree(&cresult);

return oresult;

}

/* FCI callback functions */

static FNFCIALLOC(cb_alloc)

{

return malloc(cb);

}

static FNFCIFREE(cb_free)

{

free(memory);

}

static FNFCIOPEN(cb_open)

{

int result = _open(pszFile, oflag, pmode);

if (result == -1)

*err = errno;

return result;

}

static FNFCIREAD(cb_read)

{

UINT result = (UINT)_read(hf, memory, cb);

if (result != cb)

*err = errno;

return result;

}

static FNFCIWRITE(cb_write)

{

UINT result = (UINT)_write(hf, memory, cb);

if (result != cb)

*err = errno;

return result;

}

static FNFCICLOSE(cb_close)

{

int result = _close(hf);

if (result != 0)

*err = errno;

return result;

}

static FNFCISEEK(cb_seek)

{

long result = (long)_lseek(hf, dist, seektype);

if (result == -1)

*err = errno;

return result;

}

static FNFCIDELETE(cb_delete)

{

int result = remove(pszFile);

if (result != 0)

*err = errno;

return result;

}

static FNFCIFILEPLACED(cb_fileplaced)

{

return 0;

}

static FNFCIGETTEMPFILE(cb_gettempfile)

{

char *name = _tempnam("", "tmp");

if ((name != NULL) && ((int)strlen(name) < cbTempName)) {

strcpy(pszTempName, name);

free(name);

return TRUE;

}

if (name) free(name);

return FALSE;

}

static FNFCISTATUS(cb_status)

{

if (pv) {

PyObject *result = PyObject_CallMethod(pv, "status", "iii", typeStatus, cb1, cb2);

if (result == NULL)

return -1;

Py_DECREF(result);

}

return 0;

}

static FNFCIGETNEXTCABINET(cb_getnextcabinet)

{

if (pv) {

PyObject *result = PyObject_CallMethod(pv, "getnextcabinet", "i", pccab->iCab);

if (result == NULL)

return -1;

if (!PyString_Check(result)) {

PyErr_Format(PyExc_TypeError,

"Incorrect return type %s from getnextcabinet",

result->ob_type->tp_name);

Py_DECREF(result);

return FALSE;

}

strncpy(pccab->szCab, PyString_AsString(result), sizeof(pccab->szCab));

return TRUE;

}

return FALSE;

}

static FNFCIGETOPENINFO(cb_getopeninfo)

{

BY_HANDLE_FILE_INFORMATION bhfi;

FILETIME filetime;

HANDLE handle;

/* Need Win32 handle to get time stamps */

handle = CreateFile(pszName, GENERIC_READ, FILE_SHARE_READ, NULL,

OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, NULL);

if (handle == INVALID_HANDLE_VALUE)

return -1;

if (GetFileInformationByHandle(handle, &bhfi) == FALSE)

{

CloseHandle(handle);

return -1;

}

FileTimeToLocalFileTime(&bhfi.ftLastWriteTime, &filetime);

FileTimeToDosDateTime(&filetime, pdate, ptime);

*pattribs = (int)(bhfi.dwFileAttributes &

(_A_RDONLY | _A_SYSTEM | _A_HIDDEN | _A_ARCH));

CloseHandle(handle);

return _open(pszName, _O_RDONLY | _O_BINARY);

}

static PyObject* fcicreate(PyObject* obj, PyObject* args)

{

char *cabname, *p;

PyObject *files;

CCAB ccab;

HFCI hfci;

ERF erf;

Py_ssize_t i;

if (!PyArg_ParseTuple(args, "sO:FCICreate", &cabname, &files))

return NULL;

if (!PyList_Check(files)) {

PyErr_SetString(PyExc_TypeError, "FCICreate expects a list");

return NULL;

}

ccab.cb = INT_MAX; /* no need to split CAB into multiple media */

ccab.cbFolderThresh = 1000000; /* flush directory after this many bytes */

ccab.cbReserveCFData = 0;

ccab.cbReserveCFFolder = 0;

ccab.cbReserveCFHeader = 0;

ccab.iCab = 1;

ccab.iDisk = 1;

ccab.setID = 0;

ccab.szDisk[0] = '\0';

for (i = 0, p = cabname; *p; p = CharNext(p))

if (*p == '\\' || *p == '/')

i = p - cabname + 1;

if (i >= sizeof(ccab.szCabPath) ||

strlen(cabname+i) >= sizeof(ccab.szCab)) {

PyErr_SetString(PyExc_ValueError, "path name too long");

return 0;

}

if (i > 0) {

memcpy(ccab.szCabPath, cabname, i);

ccab.szCabPath[i] = '\0';

strcpy(ccab.szCab, cabname+i);

} else {

strcpy(ccab.szCabPath, ".\\");

strcpy(ccab.szCab, cabname);

}

hfci = FCICreate(&erf, cb_fileplaced, cb_alloc, cb_free,

cb_open, cb_read, cb_write, cb_close, cb_seek, cb_delete,

cb_gettempfile, &ccab, NULL);

if (hfci == NULL) {

PyErr_Format(PyExc_ValueError, "FCI error %d", erf.erfOper);

return NULL;

}

for (i=0; i < PyList_GET_SIZE(files); i++) {

PyObject *item = PyList_GET_ITEM(files, i);

char *filename, *cabname;

if (!PyArg_ParseTuple(item, "ss", &filename, &cabname))

goto err;

if (!FCIAddFile(hfci, filename, cabname, FALSE,

cb_getnextcabinet, cb_status, cb_getopeninfo,

tcompTYPE_MSZIP))

goto err;

}

if (!FCIFlushCabinet(hfci, FALSE, cb_getnextcabinet, cb_status))

goto err;

if (!FCIDestroy(hfci))

goto err;

Py_INCREF(Py_None);

return Py_None;

err:

PyErr_Format(PyExc_ValueError, "FCI error %d", erf.erfOper); /* XXX better error type */

FCIDestroy(hfci);

return NULL;

}

typedef struct msiobj{

PyObject_HEAD

MSIHANDLE h;

}msiobj;

static void

msiobj_dealloc(msiobj* msidb)

{

MsiCloseHandle(msidb->h);

msidb->h = 0;

PyObject_Del(msidb);

}

static PyObject*

msiobj_close(msiobj* msidb, PyObject *args)

{

MsiCloseHandle(msidb->h);

msidb->h = 0;

Py_INCREF(Py_None);

return Py_None;

}

static PyObject*

msierror(int status)

{

int code;

char buf[2000];

char *res = buf;

DWORD size = sizeof(buf);

MSIHANDLE err = MsiGetLastErrorRecord();

if (err == 0) {

switch(status) {

case ERROR_ACCESS_DENIED:

PyErr_SetString(MSIError, "access denied");

return NULL;

case ERROR_FUNCTION_FAILED:

PyErr_SetString(MSIError, "function failed");

return NULL;

case ERROR_INVALID_DATA:

PyErr_SetString(MSIError, "invalid data");

return NULL;

case ERROR_INVALID_HANDLE:

PyErr_SetString(MSIError, "invalid handle");

return NULL;

case ERROR_INVALID_STATE:

PyErr_SetString(MSIError, "invalid state");

return NULL;

case ERROR_INVALID_PARAMETER:

PyErr_SetString(MSIError, "invalid parameter");

return NULL;

default:

PyErr_Format(MSIError, "unknown error %x", status);

return NULL;

}

code = MsiRecordGetInteger(err, 1); /* XXX code */

if (MsiFormatRecord(0, err, res, &size) == ERROR_MORE_DATA) {

res = malloc(size+1);

if (res == NULL) {

MsiCloseHandle(err);

return PyErr_NoMemory();

}

MsiFormatRecord(0, err, res, &size);

res[size]='\0';

}

MsiCloseHandle(err);

PyErr_SetString(MSIError, res);

if (res != buf)

free(res);

return NULL;

}

/*************************** Record objects **********************/

static PyObject*

record_getfieldcount(msiobj* record, PyObject* args)

{

return PyInt_FromLong(MsiRecordGetFieldCount(record->h));

}

static PyObject*

record_getinteger(msiobj* record, PyObject* args)

{

unsigned int field;

int status;

if (!PyArg_ParseTuple(args, "I:GetInteger", &field))

return NULL;

status = MsiRecordGetInteger(record->h, field);

if (status == MSI_NULL_INTEGER){

PyErr_SetString(MSIError, "could not convert record field to integer");

return NULL;

}

return PyInt_FromLong((long) status);

}

static PyObject*

record_getstring(msiobj* record, PyObject* args)

{

unsigned int field;

unsigned int status;

char buf[2000];

char *res = buf;

DWORD size = sizeof(buf);

PyObject* string;

if (!PyArg_ParseTuple(args, "I:GetString", &field))

return NULL;

status = MsiRecordGetString(record->h, field, res, &size);

if (status == ERROR_MORE_DATA) {

res = (char*) malloc(size + 1);

if (res == NULL)

return PyErr_NoMemory();

status = MsiRecordGetString(record->h, field, res, &size);

}

if (status != ERROR_SUCCESS)

return msierror((int) status);

string = PyString_FromString(res);

if (buf != res)

free(res);

return string;

}

static PyObject*

record_cleardata(msiobj* record, PyObject *args)

{

int status = MsiRecordClearData(record->h);

if (status != ERROR_SUCCESS)

return msierror(status);

Py_INCREF(Py_None);

return Py_None;

}

static PyObject*

record_setstring(msiobj* record, PyObject *args)

{

int status;

int field;

char *data;

if (!PyArg_ParseTuple(args, "is:SetString", &field, &data))

return NULL;

if ((status = MsiRecordSetString(record->h, field, data)) != ERROR_SUCCESS)

return msierror(status);

Py_INCREF(Py_None);

return Py_None;

}

static PyObject*

record_setstream(msiobj* record, PyObject *args)

{

int status;

int field;

char *data;

if (!PyArg_ParseTuple(args, "is:SetStream", &field, &data))

return NULL;

if ((status = MsiRecordSetStream(record->h, field, data)) != ERROR_SUCCESS)

return msierror(status);

Py_INCREF(Py_None);

return Py_None;

}

static PyObject*

record_setinteger(msiobj* record, PyObject *args)

{

int status;

int field;

int data;

if (!PyArg_ParseTuple(args, "ii:SetInteger", &field, &data))

return NULL;

if ((status = MsiRecordSetInteger(record->h, field, data)) != ERROR_SUCCESS)

return msierror(status);

Py_INCREF(Py_None);

return Py_None;

}

static PyMethodDef record_methods[] = {

{ "GetFieldCount", (PyCFunction)record_getfieldcount, METH_NOARGS,

PyDoc_STR("GetFieldCount() -> int\nWraps MsiRecordGetFieldCount")},

{ "GetInteger", (PyCFunction)record_getinteger, METH_VARARGS,

PyDoc_STR("GetInteger(field) -> int\nWraps MsiRecordGetInteger")},

{ "GetString", (PyCFunction)record_getstring, METH_VARARGS,

PyDoc_STR("GetString(field) -> string\nWraps MsiRecordGetString")},

{ "SetString", (PyCFunction)record_setstring, METH_VARARGS,

PyDoc_STR("SetString(field,str) -> None\nWraps MsiRecordSetString")},

{ "SetStream", (PyCFunction)record_setstream, METH_VARARGS,

PyDoc_STR("SetStream(field,filename) -> None\nWraps MsiRecordSetInteger")},

{ "SetInteger", (PyCFunction)record_setinteger, METH_VARARGS,

PyDoc_STR("SetInteger(field,int) -> None\nWraps MsiRecordSetInteger")},

{ "ClearData", (PyCFunction)record_cleardata, METH_NOARGS,

PyDoc_STR("ClearData() -> int\nWraps MsiRecordGClearData")},

{ NULL, NULL }

};

static PyTypeObject record_Type = {

PyVarObject_HEAD_INIT(NULL, 0)

"_msi.Record", /*tp_name*/

sizeof(msiobj), /*tp_basicsize*/

0, /*tp_itemsize*/

/* methods */

(destructor)msiobj_dealloc, /*tp_dealloc*/

0, /*tp_print*/

0, /*tp_getattr*/

0, /*tp_setattr*/

0, /*tp_compare*/

0, /*tp_repr*/

0, /*tp_as_number*/

0, /*tp_as_sequence*/

0, /*tp_as_mapping*/

0, /*tp_hash*/

0, /*tp_call*/

0, /*tp_str*/

PyObject_GenericGetAttr,/*tp_getattro*/

PyObject_GenericSetAttr,/*tp_setattro*/

0, /*tp_as_buffer*/

Py_TPFLAGS_DEFAULT, /*tp_flags*/

0, /*tp_doc*/

0, /*tp_traverse*/

0, /*tp_clear*/

0, /*tp_richcompare*/

0, /*tp_weaklistoffset*/

0, /*tp_iter*/

0, /*tp_iternext*/

record_methods, /*tp_methods*/

0, /*tp_members*/

0, /*tp_getset*/

0, /*tp_base*/

0, /*tp_dict*/

0, /*tp_descr_get*/

0, /*tp_descr_set*/

0, /*tp_dictoffset*/

0, /*tp_init*/

0, /*tp_alloc*/

0, /*tp_new*/

0, /*tp_free*/

0, /*tp_is_gc*/

};

static PyObject*

record_new(MSIHANDLE h)

{

msiobj *result = PyObject_NEW(struct msiobj, &record_Type);

if (!result) {

MsiCloseHandle(h);

return NULL;

}

result->h = h;

return (PyObject*)result;

}

/*************************** SummaryInformation objects **************/

static PyObject*

summary_getproperty(msiobj* si, PyObject *args)

{

int status;

int field;

PyObject *result;

UINT type;

INT ival;

FILETIME fval;

char sbuf[1000];

char *sval = sbuf;

DWORD ssize = sizeof(sbuf);

if (!PyArg_ParseTuple(args, "i:GetProperty", &field))

return NULL;

status = MsiSummaryInfoGetProperty(si->h, field, &type, &ival,

&fval, sval, &ssize);

if (status == ERROR_MORE_DATA) {

ssize++;

sval = malloc(ssize);

if (sval == NULL) {

return PyErr_NoMemory();

}

status = MsiSummaryInfoGetProperty(si->h, field, &type, &ival,

&fval, sval, &ssize);

}

switch(type) {

case VT_I2:

case VT_I4:

result = PyLong_FromLong(ival);

break;

case VT_FILETIME:

PyErr_SetString(PyExc_NotImplementedError, "FILETIME result");

result = NULL;

break;

case VT_LPSTR:

result = PyBytes_FromStringAndSize(sval, ssize);

break;

case VT_EMPTY:

Py_INCREF(Py_None);

result = Py_None;

break;

default:

PyErr_Format(PyExc_NotImplementedError, "result of type %d", type);

result = NULL;

break;

}

if (sval != sbuf)

free(sval);

return result;

}

static PyObject*

summary_getpropertycount(msiobj* si, PyObject *args)

{

int status;

UINT result;

status = MsiSummaryInfoGetPropertyCount(si->h, &result);

if (status != ERROR_SUCCESS)

return msierror(status);

return PyInt_FromLong(result);

}

static PyObject*

summary_setproperty(msiobj* si, PyObject *args)

{

int status;

int field;

PyObject* data;

if (!PyArg_ParseTuple(args, "iO:SetProperty", &field, &data))

return NULL;

if (PyString_Check(data)) {

status = MsiSummaryInfoSetProperty(si->h, field, VT_LPSTR,

0, NULL, PyString_AsString(data));

} else if (PyInt_Check(data)) {

status = MsiSummaryInfoSetProperty(si->h, field, VT_I4,

PyInt_AsLong(data), NULL, NULL);

} else {

PyErr_SetString(PyExc_TypeError, "unsupported type");

return NULL;

}

if (status != ERROR_SUCCESS)

return msierror(status);

Py_INCREF(Py_None);

return Py_None;

}

static PyObject*

summary_persist(msiobj* si, PyObject *args)

{

int status;

status = MsiSummaryInfoPersist(si->h);

if (status != ERROR_SUCCESS)

return msierror(status);

Py_INCREF(Py_None);

return Py_None;

}

static PyMethodDef summary_methods[] = {

{ "GetProperty", (PyCFunction)summary_getproperty, METH_VARARGS,

PyDoc_STR("GetProperty(propid) -> value\nWraps MsiSummaryInfoGetProperty")},

{ "GetPropertyCount", (PyCFunction)summary_getpropertycount, METH_NOARGS,

PyDoc_STR("GetProperty() -> int\nWraps MsiSummaryInfoGetPropertyCount")},

{ "SetProperty", (PyCFunction)summary_setproperty, METH_VARARGS,

PyDoc_STR("SetProperty(value) -> None\nWraps MsiSummaryInfoProperty")},

{ "Persist", (PyCFunction)summary_persist, METH_NOARGS,

PyDoc_STR("Persist() -> None\nWraps MsiSummaryInfoPersist")},

{ NULL, NULL }

};

static PyTypeObject summary_Type = {

PyVarObject_HEAD_INIT(NULL, 0)

"_msi.SummaryInformation", /*tp_name*/

sizeof(msiobj), /*tp_basicsize*/

0, /*tp_itemsize*/

/* methods */

(destructor)msiobj_dealloc, /*tp_dealloc*/

0, /*tp_print*/

0, /*tp_getattr*/

0, /*tp_setattr*/

0, /*tp_compare*/

0, /*tp_repr*/

0, /*tp_as_number*/

0, /*tp_as_sequence*/

0, /*tp_as_mapping*/

0, /*tp_hash*/

0, /*tp_call*/

0, /*tp_str*/

PyObject_GenericGetAttr,/*tp_getattro*/

PyObject_GenericSetAttr,/*tp_setattro*/

0, /*tp_as_buffer*/

Py_TPFLAGS_DEFAULT, /*tp_flags*/

0, /*tp_doc*/

0, /*tp_traverse*/

0, /*tp_clear*/

0, /*tp_richcompare*/

0, /*tp_weaklistoffset*/

0, /*tp_iter*/

0, /*tp_iternext*/

summary_methods, /*tp_methods*/

0, /*tp_members*/

0, /*tp_getset*/

0, /*tp_base*/

0, /*tp_dict*/

0, /*tp_descr_get*/

0, /*tp_descr_set*/

0, /*tp_dictoffset*/

0, /*tp_init*/

0, /*tp_alloc*/

0, /*tp_new*/

0, /*tp_free*/

0, /*tp_is_gc*/

};

/*************************** View objects **************/

static PyObject*

view_execute(msiobj *view, PyObject*args)

{

int status;

MSIHANDLE params = 0;

PyObject *oparams = Py_None;

if (!PyArg_ParseTuple(args, "O:Execute", &oparams))

return NULL;

if (oparams != Py_None) {

if (oparams->ob_type != &record_Type) {

PyErr_SetString(PyExc_TypeError, "Execute argument must be a record");

return NULL;

}

params = ((msiobj*)oparams)->h;

}

status = MsiViewExecute(view->h, params);

if (status != ERROR_SUCCESS)

return msierror(status);

Py_INCREF(Py_None);

return Py_None;

}

static PyObject*

view_fetch(msiobj *view, PyObject*args)

{

int status;

MSIHANDLE result;

if ((status = MsiViewFetch(view->h, &result)) != ERROR_SUCCESS)

return msierror(status);

return record_new(result);

}

static PyObject*

view_getcolumninfo(msiobj *view, PyObject *args)

{

int status;

int kind;

MSIHANDLE result;

if (!PyArg_ParseTuple(args, "i:GetColumnInfo", &kind))

return NULL;

if ((status = MsiViewGetColumnInfo(view->h, kind, &result)) != ERROR_SUCCESS)

return msierror(status);

return record_new(result);

}

static PyObject*

view_modify(msiobj *view, PyObject *args)

{

int kind;

PyObject *data;

int status;

if (!PyArg_ParseTuple(args, "iO:Modify", &kind, &data))

return NULL;

if (data->ob_type != &record_Type) {

PyErr_SetString(PyExc_TypeError, "Modify expects a record object");

return NULL;

}

if ((status = MsiViewModify(view->h, kind, ((msiobj*)data)->h)) != ERROR_SUCCESS)

return msierror(status);

Py_INCREF(Py_None);

return Py_None;

}

static PyObject*

view_close(msiobj *view, PyObject*args)

{

int status;

if ((status = MsiViewClose(view->h)) != ERROR_SUCCESS)

return msierror(status);

Py_INCREF(Py_None);

return Py_None;

}

static PyMethodDef view_methods[] = {

{ "Execute", (PyCFunction)view_execute, METH_VARARGS,

PyDoc_STR("Execute(params=None) -> None\nWraps MsiViewExecute")},

{ "GetColumnInfo", (PyCFunction)view_getcolumninfo, METH_VARARGS,

PyDoc_STR("GetColumnInfo() -> result\nWraps MsiGetColumnInfo")},

{ "Fetch", (PyCFunction)view_fetch, METH_NOARGS,

PyDoc_STR("Fetch() -> result\nWraps MsiViewFetch")},

{ "Modify", (PyCFunction)view_modify, METH_VARARGS,

PyDoc_STR("Modify(mode,record) -> None\nWraps MsiViewModify")},

{ "Close", (PyCFunction)view_close, METH_NOARGS,

PyDoc_STR("Close() -> result\nWraps MsiViewClose")},

{ NULL, NULL }

};

static PyTypeObject msiview_Type = {

PyVarObject_HEAD_INIT(NULL, 0)

"_msi.View", /*tp_name*/

sizeof(msiobj), /*tp_basicsize*/

0, /*tp_itemsize*/

/* methods */

(destructor)msiobj_dealloc, /*tp_dealloc*/

0, /*tp_print*/

0, /*tp_getattr*/

0, /*tp_setattr*/

0, /*tp_compare*/

0, /*tp_repr*/

0, /*tp_as_number*/

0, /*tp_as_sequence*/

0, /*tp_as_mapping*/

0, /*tp_hash*/

0, /*tp_call*/

0, /*tp_str*/

PyObject_GenericGetAttr,/*tp_getattro*/

PyObject_GenericSetAttr,/*tp_setattro*/

0, /*tp_as_buffer*/

Py_TPFLAGS_DEFAULT, /*tp_flags*/

0, /*tp_doc*/

0, /*tp_traverse*/

0, /*tp_clear*/

0, /*tp_richcompare*/

0, /*tp_weaklistoffset*/

0, /*tp_iter*/

0, /*tp_iternext*/

view_methods, /*tp_methods*/

0, /*tp_members*/

0, /*tp_getset*/

0, /*tp_base*/

0, /*tp_dict*/

0, /*tp_descr_get*/

0, /*tp_descr_set*/

0, /*tp_dictoffset*/

0, /*tp_init*/

0, /*tp_alloc*/

0, /*tp_new*/

0, /*tp_free*/

0, /*tp_is_gc*/

};

/*************************** Database objects **************/

static PyObject*

msidb_openview(msiobj *msidb, PyObject *args)

{

int status;

char *sql;

MSIHANDLE hView;

msiobj *result;

if (!PyArg_ParseTuple(args, "s:OpenView", &sql))

return NULL;

if ((status = MsiDatabaseOpenView(msidb->h, sql, &hView)) != ERROR_SUCCESS)

return msierror(status);

result = PyObject_NEW(struct msiobj, &msiview_Type);

if (!result) {

MsiCloseHandle(hView);

return NULL;

}

result->h = hView;

return (PyObject*)result;

}

static PyObject*

msidb_commit(msiobj *msidb, PyObject *args)

{

int status;

if ((status = MsiDatabaseCommit(msidb->h)) != ERROR_SUCCESS)

return msierror(status);

Py_INCREF(Py_None);

return Py_None;

}

static PyObject*

msidb_getsummaryinformation(msiobj *db, PyObject *args)

{

int status;

int count;

MSIHANDLE result;

msiobj *oresult;

if (!PyArg_ParseTuple(args, "i:GetSummaryInformation", &count))

return NULL;

status = MsiGetSummaryInformation(db->h, NULL, count, &result);

if (status != ERROR_SUCCESS)

return msierror(status);

oresult = PyObject_NEW(struct msiobj, &summary_Type);

if (!oresult) {

MsiCloseHandle(result);

return NULL;

}

oresult->h = result;

return (PyObject*)oresult;

}

static PyMethodDef db_methods[] = {

{ "OpenView", (PyCFunction)msidb_openview, METH_VARARGS,

PyDoc_STR("OpenView(sql) -> viewobj\nWraps MsiDatabaseOpenView")},

{ "Commit", (PyCFunction)msidb_commit, METH_NOARGS,

PyDoc_STR("Commit() -> None\nWraps MsiDatabaseCommit")},

{ "GetSummaryInformation", (PyCFunction)msidb_getsummaryinformation, METH_VARARGS,

PyDoc_STR("GetSummaryInformation(updateCount) -> viewobj\nWraps MsiGetSummaryInformation")},

{ NULL, NULL }

};

static PyTypeObject msidb_Type = {

PyVarObject_HEAD_INIT(NULL, 0)

"_msi.Database", /*tp_name*/

sizeof(msiobj), /*tp_basicsize*/

0, /*tp_itemsize*/

/* methods */

(destructor)msiobj_dealloc, /*tp_dealloc*/

0, /*tp_print*/

0, /*tp_getattr*/

0, /*tp_setattr*/

0, /*tp_compare*/

0, /*tp_repr*/

0, /*tp_as_number*/

0, /*tp_as_sequence*/

0, /*tp_as_mapping*/

0, /*tp_hash*/

0, /*tp_call*/

0, /*tp_str*/

PyObject_GenericGetAttr,/*tp_getattro*/

PyObject_GenericSetAttr,/*tp_setattro*/

0, /*tp_as_buffer*/

Py_TPFLAGS_DEFAULT, /*tp_flags*/

0, /*tp_doc*/

0, /*tp_traverse*/

0, /*tp_clear*/

0, /*tp_richcompare*/

0, /*tp_weaklistoffset*/

0, /*tp_iter*/

0, /*tp_iternext*/

db_methods, /*tp_methods*/

0, /*tp_members*/

0, /*tp_getset*/

0, /*tp_base*/

0, /*tp_dict*/

0, /*tp_descr_get*/

0, /*tp_descr_set*/

0, /*tp_dictoffset*/

0, /*tp_init*/

0, /*tp_alloc*/

0, /*tp_new*/

0, /*tp_free*/

0, /*tp_is_gc*/

};

#define Py_NOT_PERSIST(x, flag) \

(x != (int)(flag) && \

x != ((int)(flag) | MSIDBOPEN_PATCHFILE))

#define Py_INVALID_PERSIST(x) \

(Py_NOT_PERSIST(x, MSIDBOPEN_READONLY) && \

Py_NOT_PERSIST(x, MSIDBOPEN_TRANSACT) && \

Py_NOT_PERSIST(x, MSIDBOPEN_DIRECT) && \

Py_NOT_PERSIST(x, MSIDBOPEN_CREATE) && \

Py_NOT_PERSIST(x, MSIDBOPEN_CREATEDIRECT))

static PyObject* msiopendb(PyObject *obj, PyObject *args)

{

int status;

char *path;

int persist;

MSIHANDLE h;

msiobj *result;

if (!PyArg_ParseTuple(args, "si:MSIOpenDatabase", &path, &persist))

return NULL;

/* We need to validate that persist is a valid MSIDBOPEN_* value. Otherwise,

MsiOpenDatabase may treat the value as a pointer, leading to unexpected

behavior. */

if (Py_INVALID_PERSIST(persist))

return msierror(ERROR_INVALID_PARAMETER);

status = MsiOpenDatabase(path, (LPCSTR)persist, &h);

if (status != ERROR_SUCCESS)

return msierror(status);

result = PyObject_NEW(struct msiobj, &msidb_Type);

if (!result) {

MsiCloseHandle(h);

return NULL;

}

result->h = h;

return (PyObject*)result;

}

static PyObject*

createrecord(PyObject *o, PyObject *args)

{

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