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Ignore enumerable objects for which getting properties fails

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Needed for the PoS Nook which apparently fails to return properties for
many objects. ALso matches libmtp based driver behavior.
This commit is contained in:
Kovid Goyal 2025-01-25 10:10:44 +05:30
parent 64e87a86a7
commit 4f01aa24e6
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GPG Key ID: 06BC317B515ACE7C
1 changed files with 15 additions and 7 deletions
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22
src/calibre/devices/mtp/windows/content_enumeration.cpp
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@ -167,14 +167,15 @@ get_object_filename(IPortableDeviceProperties *devprops, IPortableDeviceKeyColle
static PyObject*
get_object_properties(IPortableDeviceProperties *devprops, IPortableDeviceKeyCollection *properties, const wchar_t *object_id) {
get_object_properties(IPortableDeviceProperties *devprops, IPortableDeviceKeyCollection *properties, const wchar_t *object_id, bool *get_properties_failed) {
CComPtr<IPortableDeviceValues> values;
HRESULT hr;
*get_properties_failed = false;
Py_BEGIN_ALLOW_THREADS;
hr = devprops->GetValues(object_id, properties, &values);
Py_END_ALLOW_THREADS;
if (FAILED(hr)) { hresult_set_exc("Failed to get properties for object", hr); return NULL; }
if (FAILED(hr)) { hresult_set_exc("Failed to get properties for object", hr); *get_properties_failed = true; return NULL; }
pyobject_raii id(PyUnicode_FromWideChar(object_id, -1));
if (!id) return NULL;
@ -204,8 +205,12 @@ single_get_filesystem(unsigned int level, CComPtr<IPortableDeviceContent> &conte
hr = object_ids->GetAt(i, &pv);
pyobject_raii recurse;
if (SUCCEEDED(hr) && pv.pwszVal != NULL) {
pyobject_raii item(get_object_properties(devprops, properties, pv.pwszVal));
if (!item) return false;
bool get_properties_failed;
pyobject_raii item(get_object_properties(devprops, properties, pv.pwszVal, &get_properties_failed));
if (!item) {
if (!get_properties_failed) return false;
fprintf(stderr, "Ignoring object with id: %ls because getting its properties failed.\n", pv.pwszVal);
}
if (PyDict_SetItem(ans, PyDict_GetItemString(item.ptr(), "id"), item.ptr()) != 0) return false;
if (callback) {
pyobject_raii r(PyObject_CallFunction(callback, "OI", item.ptr(), level));
@ -522,7 +527,8 @@ get_metadata(CComPtr<IPortableDeviceContent> &content, const wchar_t *object_id)
CComPtr<IPortableDeviceProperties> devprops;
HRESULT hr = content->Properties(&devprops);
if (FAILED(hr)) { hresult_set_exc("Failed to get IPortableDeviceProperties interface", hr); return NULL; }
return get_object_properties(devprops, properties, object_id);
bool get_properties_failed;
return get_object_properties(devprops, properties, object_id, &get_properties_failed);
}
PyObject*
@ -733,7 +739,8 @@ create_folder(IPortableDevice *device, const wchar_t *parent_id, const wchar_t *
Py_END_ALLOW_THREADS;
if (FAILED(hr) || !newid) { hresult_set_exc("Failed to create folder", hr); return NULL; }
return get_object_properties(devprops, properties, newid.ptr());
bool get_properties_failed;
return get_object_properties(devprops, properties, newid.ptr(), &get_properties_failed);
} // }}}
PyObject*
@ -842,7 +849,8 @@ put_file(IPortableDevice *device, const wchar_t *parent_id, const wchar_t *name,
Py_END_ALLOW_THREADS;
if (FAILED(hr)) { hresult_set_exc("Failed to get id of newly created file", hr); return NULL; }
return get_object_properties(devprops, properties, newid.ptr());
bool get_properties_failed;
return get_object_properties(devprops, properties, newid.ptr(), &get_properties_failed);
} // }}}