Sweden-Number/dlls/wsdapi/xml.c

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/*
* Web Services on Devices
*
* Copyright 2017 Owen Rudge for CodeWeavers
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
*/
#include <stdarg.h>
#define COBJMACROS
#include "wsdapi_internal.h"
#include "wine/debug.h"
WINE_DEFAULT_DEBUG_CHANNEL(wsdapi);
LPWSTR duplicate_string(void *parentMemoryBlock, LPCWSTR value)
{
int valueLen;
LPWSTR dup;
valueLen = lstrlenW(value) + 1;
dup = WSDAllocateLinkedMemory(parentMemoryBlock, valueLen * sizeof(WCHAR));
if (dup) memcpy(dup, value, valueLen * sizeof(WCHAR));
return dup;
}
static WSDXML_NAMESPACE *duplicate_namespace(void *parentMemoryBlock, WSDXML_NAMESPACE *ns)
{
WSDXML_NAMESPACE *newNs;
newNs = WSDAllocateLinkedMemory(parentMemoryBlock, sizeof(WSDXML_NAMESPACE));
if (newNs == NULL)
{
return NULL;
}
newNs->Encoding = ns->Encoding;
/* On Windows, both Names and NamesCount are set to null even if there are names present */
newNs->NamesCount = 0;
newNs->Names = NULL;
newNs->PreferredPrefix = duplicate_string(newNs, ns->PreferredPrefix);
newNs->Uri = duplicate_string(newNs, ns->Uri);
return newNs;
}
WSDXML_NAME *duplicate_name(void *parentMemoryBlock, WSDXML_NAME *name)
{
WSDXML_NAME *dup;
dup = WSDAllocateLinkedMemory(parentMemoryBlock, sizeof(WSDXML_NAME));
if (dup == NULL)
{
return NULL;
}
dup->Space = duplicate_namespace(dup, name->Space);
dup->LocalName = duplicate_string(dup, name->LocalName);
if (dup->LocalName == NULL)
{
WSDFreeLinkedMemory(dup);
return NULL;
}
return dup;
}
HRESULT WINAPI WSDXMLAddChild(WSDXML_ELEMENT *pParent, WSDXML_ELEMENT *pChild)
{
WSDXML_NODE *currentNode;
TRACE("(%p, %p)\n", pParent, pChild);
if ((pParent == NULL) || (pChild == NULL) || (pChild->Node.Parent != NULL))
{
return E_INVALIDARG;
}
/* See if the parent already has a child */
currentNode = pParent->FirstChild;
if (currentNode == NULL)
{
pParent->FirstChild = (WSDXML_NODE *)pChild;
}
else
{
/* Find the last sibling node and make this child the next sibling */
WSDXMLAddSibling((WSDXML_ELEMENT *)currentNode, pChild);
}
pChild->Node.Parent = pParent;
/* Link the memory allocations */
WSDAttachLinkedMemory(pParent, pChild);
return S_OK;
}
HRESULT WINAPI WSDXMLAddSibling(WSDXML_ELEMENT *pFirst, WSDXML_ELEMENT *pSecond)
{
WSDXML_NODE *currentNode;
TRACE("(%p, %p)\n", pFirst, pSecond);
if ((pFirst == NULL) || (pSecond == NULL))
{
return E_INVALIDARG;
}
/* See if the first node already has a sibling */
currentNode = pFirst->Node.Next;
if (currentNode == NULL)
{
pFirst->Node.Next = (WSDXML_NODE *)pSecond;
}
else
{
/* Find the last sibling node and make the second element the next sibling */
while (1)
{
if (currentNode->Next == NULL)
{
currentNode->Next = (WSDXML_NODE *)pSecond;
break;
}
currentNode = currentNode->Next;
}
}
/* Reparent the second node under the first */
pSecond->Node.Parent = pFirst->Node.Parent;
/* Link the memory allocations */
WSDAttachLinkedMemory(pFirst->Node.Parent, pSecond);
return S_OK;
}
HRESULT WINAPI WSDXMLBuildAnyForSingleElement(WSDXML_NAME *pElementName, LPCWSTR pszText, WSDXML_ELEMENT **ppAny)
{
WSDXML_TEXT *child;
TRACE("(%p, %s, %p)\n", pElementName, debugstr_w(pszText), ppAny);
if ((pElementName == NULL) || ((pszText != NULL) && (lstrlenW(pszText) > WSD_MAX_TEXT_LENGTH)))
{
return E_INVALIDARG;
}
if (ppAny == NULL)
{
return E_POINTER;
}
*ppAny = WSDAllocateLinkedMemory(NULL, sizeof(WSDXML_ELEMENT));
if (*ppAny == NULL)
{
return E_OUTOFMEMORY;
}
ZeroMemory(*ppAny, sizeof(WSDXML_ELEMENT));
(*ppAny)->Name = duplicate_name(*ppAny, pElementName);
if ((*ppAny)->Name == NULL)
{
WSDFreeLinkedMemory(*ppAny);
return E_OUTOFMEMORY;
}
if (pszText != NULL)
{
child = WSDAllocateLinkedMemory(*ppAny, sizeof(WSDXML_TEXT));
if (child == NULL)
{
WSDFreeLinkedMemory(*ppAny);
return E_OUTOFMEMORY;
}
child->Node.Parent = *ppAny;
child->Node.Next = NULL;
child->Node.Type = TextType;
child->Text = duplicate_string(child, pszText);
if (child->Text == NULL)
{
WSDFreeLinkedMemory(*ppAny);
return E_OUTOFMEMORY;
}
(*ppAny)->FirstChild = (WSDXML_NODE *)child;
}
return S_OK;
}
HRESULT WINAPI WSDXMLCleanupElement(WSDXML_ELEMENT *pAny)
{
TRACE("(%p)\n", pAny);
if (pAny == NULL)
{
return E_INVALIDARG;
}
WSDFreeLinkedMemory(pAny);
return S_OK;
}
HRESULT WINAPI WSDXMLGetValueFromAny(const WCHAR *pszNamespace, const WCHAR *pszName, WSDXML_ELEMENT *pAny, LPCWSTR *ppszValue)
{
WSDXML_ELEMENT *element;
WSDXML_TEXT *text;
if (pAny == NULL)
return E_INVALIDARG;
if (ppszValue == NULL)
return E_POINTER;
if ((pszNamespace == NULL) || (pszName == NULL) || (lstrlenW(pszNamespace) > WSD_MAX_TEXT_LENGTH) || (lstrlenW(pszName) > WSD_MAX_TEXT_LENGTH))
return E_INVALIDARG;
element = pAny;
while (element != NULL)
{
if (element->Node.Type == ElementType)
{
if ((lstrcmpW(element->Name->LocalName, pszName) == 0) && (lstrcmpW(element->Name->Space->Uri, pszNamespace) == 0))
{
if ((element->FirstChild == NULL) || (element->FirstChild->Type != TextType))
{
return E_FAIL;
}
text = (WSDXML_TEXT *) element->FirstChild;
*ppszValue = (LPCWSTR) text->Text;
return S_OK;
}
}
element = (WSDXML_ELEMENT *) element->Node.Next;
}
return E_FAIL;
}
/* IWSDXMLContext implementation */
struct xmlNamespace
{
struct list entry;
WSDXML_NAMESPACE *namespace;
};
typedef struct IWSDXMLContextImpl
{
IWSDXMLContext IWSDXMLContext_iface;
LONG ref;
struct list *namespaces;
int nextUnknownPrefix;
} IWSDXMLContextImpl;
static WSDXML_NAMESPACE *find_namespace(struct list *namespaces, LPCWSTR uri)
{
struct xmlNamespace *ns;
LIST_FOR_EACH_ENTRY(ns, namespaces, struct xmlNamespace, entry)
{
if (lstrcmpW(ns->namespace->Uri, uri) == 0)
{
return ns->namespace;
}
}
return NULL;
}
static WSDXML_NAME *find_name(WSDXML_NAMESPACE *ns, LPCWSTR name)
{
int i;
for (i = 0; i < ns->NamesCount; i++)
{
if (lstrcmpW(ns->Names[i].LocalName, name) == 0)
{
return &ns->Names[i];
}
}
return NULL;
}
static WSDXML_NAME *add_name(WSDXML_NAMESPACE *ns, LPCWSTR name)
{
WSDXML_NAME *names;
WSDXML_NAME *newName;
int i;
names = WSDAllocateLinkedMemory(ns, sizeof(WSDXML_NAME) * (ns->NamesCount + 1));
if (names == NULL)
{
return NULL;
}
if (ns->NamesCount > 0)
{
/* Copy the existing names array over to the new allocation */
memcpy(names, ns->Names, sizeof(WSDXML_NAME) * ns->NamesCount);
for (i = 0; i < ns->NamesCount; i++)
{
/* Attach the local name memory to the new names allocation */
WSDAttachLinkedMemory(names, names[i].LocalName);
}
WSDFreeLinkedMemory(ns->Names);
}
ns->Names = names;
newName = &names[ns->NamesCount];
newName->LocalName = duplicate_string(names, name);
newName->Space = ns;
if (newName->LocalName == NULL)
{
return NULL;
}
ns->NamesCount++;
return newName;
}
static BOOL is_prefix_unique(struct list *namespaces, LPCWSTR prefix)
{
struct xmlNamespace *ns;
LIST_FOR_EACH_ENTRY(ns, namespaces, struct xmlNamespace, entry)
{
if (lstrcmpW(ns->namespace->PreferredPrefix, prefix) == 0)
{
return FALSE;
}
}
return TRUE;
}
static LPWSTR generate_namespace_prefix(IWSDXMLContextImpl *impl, void *parentMemoryBlock, LPCWSTR uri)
{
WCHAR formatString[] = { 'u','n','%','d', 0 };
WCHAR suggestedPrefix[7];
/* Find a unique prefix */
while (impl->nextUnknownPrefix < 1000)
{
wsprintfW(suggestedPrefix, formatString, impl->nextUnknownPrefix++);
/* For the unlikely event where somebody has explicitly created a prefix called 'unX', check it is unique */
if (is_prefix_unique(impl->namespaces, suggestedPrefix))
{
return duplicate_string(parentMemoryBlock, suggestedPrefix);
}
}
return NULL;
}
static WSDXML_NAMESPACE *add_namespace(struct list *namespaces, LPCWSTR uri)
{
struct xmlNamespace *ns = WSDAllocateLinkedMemory(namespaces, sizeof(struct xmlNamespace));
if (ns == NULL)
{
return NULL;
}
ns->namespace = WSDAllocateLinkedMemory(ns, sizeof(WSDXML_NAMESPACE));
if (ns->namespace == NULL)
{
WSDFreeLinkedMemory(ns);
return NULL;
}
ZeroMemory(ns->namespace, sizeof(WSDXML_NAMESPACE));
ns->namespace->Uri = duplicate_string(ns->namespace, uri);
if (ns->namespace->Uri == NULL)
{
WSDFreeLinkedMemory(ns);
return NULL;
}
list_add_tail(namespaces, &ns->entry);
return ns->namespace;
}
static inline IWSDXMLContextImpl *impl_from_IWSDXMLContext(IWSDXMLContext *iface)
{
return CONTAINING_RECORD(iface, IWSDXMLContextImpl, IWSDXMLContext_iface);
}
static HRESULT WINAPI IWSDXMLContextImpl_QueryInterface(IWSDXMLContext *iface, REFIID riid, void **ppv)
{
IWSDXMLContextImpl *This = impl_from_IWSDXMLContext(iface);
TRACE("(%p, %s, %p)\n", This, debugstr_guid(riid), ppv);
if (!ppv)
{
WARN("Invalid parameter\n");
return E_INVALIDARG;
}
*ppv = NULL;
if (IsEqualIID(riid, &IID_IUnknown) ||
IsEqualIID(riid, &IID_IWSDXMLContext))
{
*ppv = &This->IWSDXMLContext_iface;
}
else
{
WARN("Unknown IID %s\n", debugstr_guid(riid));
return E_NOINTERFACE;
}
IUnknown_AddRef((IUnknown*)*ppv);
return S_OK;
}
static ULONG WINAPI IWSDXMLContextImpl_AddRef(IWSDXMLContext *iface)
{
IWSDXMLContextImpl *This = impl_from_IWSDXMLContext(iface);
ULONG ref = InterlockedIncrement(&This->ref);
TRACE("(%p) ref=%d\n", This, ref);
return ref;
}
static ULONG WINAPI IWSDXMLContextImpl_Release(IWSDXMLContext *iface)
{
IWSDXMLContextImpl *This = impl_from_IWSDXMLContext(iface);
ULONG ref = InterlockedDecrement(&This->ref);
TRACE("(%p) ref=%d\n", This, ref);
if (ref == 0)
{
WSDFreeLinkedMemory(This);
}
return ref;
}
static HRESULT WINAPI IWSDXMLContextImpl_AddNamespace(IWSDXMLContext *iface, LPCWSTR pszUri, LPCWSTR pszSuggestedPrefix, WSDXML_NAMESPACE **ppNamespace)
{
IWSDXMLContextImpl *This = impl_from_IWSDXMLContext(iface);
WSDXML_NAMESPACE *ns;
LPCWSTR newPrefix = NULL;
BOOL setNewPrefix;
TRACE("(%p, %s, %s, %p)\n", This, debugstr_w(pszUri), debugstr_w(pszSuggestedPrefix), ppNamespace);
if ((pszUri == NULL) || (pszSuggestedPrefix == NULL) || (lstrlenW(pszUri) > WSD_MAX_TEXT_LENGTH) ||
(lstrlenW(pszSuggestedPrefix) > WSD_MAX_TEXT_LENGTH))
{
return E_INVALIDARG;
}
ns = find_namespace(This->namespaces, pszUri);
if (ns == NULL)
{
ns = add_namespace(This->namespaces, pszUri);
if (ns == NULL)
{
return E_OUTOFMEMORY;
}
}
setNewPrefix = (ns->PreferredPrefix == NULL);
if ((ns->PreferredPrefix == NULL) || (lstrcmpW(ns->PreferredPrefix, pszSuggestedPrefix) != 0))
{
newPrefix = pszSuggestedPrefix;
setNewPrefix = TRUE;
}
if (setNewPrefix)
{
WSDFreeLinkedMemory((void *)ns->PreferredPrefix);
ns->PreferredPrefix = NULL;
if ((newPrefix != NULL) && (is_prefix_unique(This->namespaces, newPrefix)))
{
ns->PreferredPrefix = duplicate_string(ns, newPrefix);
}
else
{
ns->PreferredPrefix = generate_namespace_prefix(This, ns, pszUri);
if (ns->PreferredPrefix == NULL)
{
return E_FAIL;
}
}
}
if (ppNamespace != NULL)
{
*ppNamespace = duplicate_namespace(NULL, ns);
if (*ppNamespace == NULL)
{
return E_OUTOFMEMORY;
}
}
return S_OK;
}
static HRESULT WINAPI IWSDXMLContextImpl_AddNameToNamespace(IWSDXMLContext *iface, LPCWSTR pszUri, LPCWSTR pszName, WSDXML_NAME **ppName)
{
IWSDXMLContextImpl *This = impl_from_IWSDXMLContext(iface);
WSDXML_NAMESPACE *ns;
WSDXML_NAME *name;
TRACE("(%p, %s, %s, %p)\n", This, debugstr_w(pszUri), debugstr_w(pszName), ppName);
if ((pszUri == NULL) || (pszName == NULL) || (lstrlenW(pszUri) > WSD_MAX_TEXT_LENGTH) || (lstrlenW(pszName) > WSD_MAX_TEXT_LENGTH))
{
return E_INVALIDARG;
}
ns = find_namespace(This->namespaces, pszUri);
if (ns == NULL)
{
/* The namespace doesn't exist, add it */
ns = add_namespace(This->namespaces, pszUri);
if (ns == NULL)
{
return E_OUTOFMEMORY;
}
ns->PreferredPrefix = generate_namespace_prefix(This, ns, pszUri);
if (ns->PreferredPrefix == NULL)
{
return E_FAIL;
}
}
name = find_name(ns, pszName);
if (name == NULL)
{
name = add_name(ns, pszName);
if (name == NULL)
{
return E_OUTOFMEMORY;
}
}
if (ppName != NULL)
{
*ppName = duplicate_name(NULL, name);
if (*ppName == NULL)
{
return E_OUTOFMEMORY;
}
}
return S_OK;
}
static HRESULT WINAPI IWSDXMLContextImpl_SetNamespaces(IWSDXMLContext *iface, const PCWSDXML_NAMESPACE *pNamespaces, WORD wNamespacesCount, BYTE bLayerNumber)
{
FIXME("(%p, %p, %d, %d)\n", iface, pNamespaces, wNamespacesCount, bLayerNumber);
return E_NOTIMPL;
}
static HRESULT WINAPI IWSDXMLContextImpl_SetTypes(IWSDXMLContext *iface, const PCWSDXML_TYPE *pTypes, DWORD dwTypesCount, BYTE bLayerNumber)
{
FIXME("(%p, %p, %d, %d)\n", iface, pTypes, dwTypesCount, bLayerNumber);
return E_NOTIMPL;
}
static const IWSDXMLContextVtbl xmlcontext_vtbl =
{
IWSDXMLContextImpl_QueryInterface,
IWSDXMLContextImpl_AddRef,
IWSDXMLContextImpl_Release,
IWSDXMLContextImpl_AddNamespace,
IWSDXMLContextImpl_AddNameToNamespace,
IWSDXMLContextImpl_SetNamespaces,
IWSDXMLContextImpl_SetTypes
};
HRESULT WINAPI WSDXMLCreateContext(IWSDXMLContext **ppContext)
{
IWSDXMLContextImpl *obj;
TRACE("(%p)\n", ppContext);
if (ppContext == NULL)
{
WARN("Invalid parameter: ppContext == NULL\n");
return E_POINTER;
}
*ppContext = NULL;
obj = WSDAllocateLinkedMemory(NULL, sizeof(*obj));
if (!obj)
{
return E_OUTOFMEMORY;
}
obj->IWSDXMLContext_iface.lpVtbl = &xmlcontext_vtbl;
obj->ref = 1;
obj->namespaces = WSDAllocateLinkedMemory(obj, sizeof(struct list));
obj->nextUnknownPrefix = 0;
if (obj->namespaces == NULL)
{
WSDFreeLinkedMemory(obj);
return E_OUTOFMEMORY;
}
list_init(obj->namespaces);
*ppContext = &obj->IWSDXMLContext_iface;
TRACE("Returning iface %p\n", *ppContext);
return S_OK;
}
WSDXML_NAMESPACE *xml_context_find_namespace_by_prefix(IWSDXMLContext *context, LPCWSTR prefix)
{
IWSDXMLContextImpl *impl = impl_from_IWSDXMLContext(context);
struct xmlNamespace *ns;
if (prefix == NULL) return NULL;
LIST_FOR_EACH_ENTRY(ns, impl->namespaces, struct xmlNamespace, entry)
{
if (lstrcmpW(ns->namespace->PreferredPrefix, prefix) == 0)
return ns->namespace;
}
return NULL;
}