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/*
* IXmlReader implementation
*
* Copyright 2010, 2012 Nikolay Sivov
*
* 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
*/
#define COBJMACROS
#include <stdarg.h>
#include "windef.h"
#include "winbase.h"
#include "initguid.h"
#include "objbase.h"
#include "xmllite.h"
#include "xmllite_private.h"
#include "wine/debug.h"
#include "wine/unicode.h"
WINE_DEFAULT_DEBUG_CHANNEL(xmllite);
/* not defined in public headers */
DEFINE_GUID(IID_IXmlReaderInput, 0x0b3ccc9b, 0x9214, 0x428b, 0xa2, 0xae, 0xef, 0x3a, 0xa8, 0x71, 0xaf, 0xda);
typedef enum
{
XmlEncoding_UTF16,
XmlEncoding_UTF8,
XmlEncoding_Unknown
} xml_encoding;
static const WCHAR utf16W[] = {'U','T','F','-','1','6',0};
static const WCHAR utf8W[] = {'U','T','F','-','8',0};
static const WCHAR dblquoteW[] = {'\"',0};
static const WCHAR quoteW[] = {'\'',0};
struct xml_encoding_data
{
const WCHAR *name;
xml_encoding enc;
UINT cp;
};
static const struct xml_encoding_data xml_encoding_map[] = {
{ utf16W, XmlEncoding_UTF16, ~0 },
{ utf8W, XmlEncoding_UTF8, CP_UTF8 }
};
typedef struct
{
char *data;
char *cur;
unsigned int allocated;
unsigned int written;
} encoded_buffer;
typedef struct input_buffer input_buffer;
typedef struct _xmlreaderinput
{
IXmlReaderInput IXmlReaderInput_iface;
LONG ref;
/* reference passed on IXmlReaderInput creation, is kept when input is created */
IUnknown *input;
IMalloc *imalloc;
xml_encoding encoding;
BOOL hint;
WCHAR *baseuri;
/* stream reference set after SetInput() call from reader,
stored as sequential stream, cause currently
optimizations possible with IStream aren't implemented */
ISequentialStream *stream;
input_buffer *buffer;
} xmlreaderinput;
typedef struct _xmlreader
{
IXmlReader IXmlReader_iface;
LONG ref;
xmlreaderinput *input;
IMalloc *imalloc;
XmlReadState state;
XmlNodeType nodetype;
DtdProcessing dtdmode;
UINT line, pos; /* reader position in XML stream */
} xmlreader;
struct input_buffer
{
encoded_buffer utf16;
encoded_buffer encoded;
UINT code_page;
xmlreaderinput *input;
};
static inline xmlreader *impl_from_IXmlReader(IXmlReader *iface)
{
return CONTAINING_RECORD(iface, xmlreader, IXmlReader_iface);
}
static inline xmlreaderinput *impl_from_IXmlReaderInput(IXmlReaderInput *iface)
{
return CONTAINING_RECORD(iface, xmlreaderinput, IXmlReaderInput_iface);
}
static inline void *m_alloc(IMalloc *imalloc, size_t len)
{
if (imalloc)
return IMalloc_Alloc(imalloc, len);
else
return heap_alloc(len);
}
static inline void *m_realloc(IMalloc *imalloc, void *mem, size_t len)
{
if (imalloc)
return IMalloc_Realloc(imalloc, mem, len);
else
return heap_realloc(mem, len);
}
static inline void m_free(IMalloc *imalloc, void *mem)
{
if (imalloc)
IMalloc_Free(imalloc, mem);
else
heap_free(mem);
}
/* reader memory allocation functions */
static inline void *reader_alloc(xmlreader *reader, size_t len)
{
return m_alloc(reader->imalloc, len);
}
static inline void reader_free(xmlreader *reader, void *mem)
{
m_free(reader->imalloc, mem);
}
/* reader input memory allocation functions */
static inline void *readerinput_alloc(xmlreaderinput *input, size_t len)
{
return m_alloc(input->imalloc, len);
}
static inline void *readerinput_realloc(xmlreaderinput *input, void *mem, size_t len)
{
return m_realloc(input->imalloc, mem, len);
}
static inline void readerinput_free(xmlreaderinput *input, void *mem)
{
m_free(input->imalloc, mem);
}
static inline WCHAR *readerinput_strdupW(xmlreaderinput *input, const WCHAR *str)
{
LPWSTR ret = NULL;
if(str) {
DWORD size;
size = (strlenW(str)+1)*sizeof(WCHAR);
ret = readerinput_alloc(input, size);
if (ret) memcpy(ret, str, size);
}
return ret;
}
static HRESULT init_encoded_buffer(xmlreaderinput *input, encoded_buffer *buffer)
{
const int initial_len = 0x2000;
buffer->data = readerinput_alloc(input, initial_len);
if (!buffer->data) return E_OUTOFMEMORY;
memset(buffer->data, 0, 4);
buffer->cur = buffer->data;
buffer->allocated = initial_len;
buffer->written = 0;
return S_OK;
}
static void free_encoded_buffer(xmlreaderinput *input, encoded_buffer *buffer)
{
readerinput_free(input, buffer->data);
}
static HRESULT get_code_page(xml_encoding encoding, UINT *cp)
{
if (encoding == XmlEncoding_Unknown)
{
FIXME("unsupported encoding %d\n", encoding);
return E_NOTIMPL;
}
*cp = xml_encoding_map[encoding].cp;
return S_OK;
}
static xml_encoding parse_encoding_name(const WCHAR *name, int len)
{
int min, max, n, c;
if (!name) return XmlEncoding_Unknown;
min = 0;
max = sizeof(xml_encoding_map)/sizeof(struct xml_encoding_data) - 1;
while (min <= max)
{
n = (min+max)/2;
if (len != -1)
c = strncmpiW(xml_encoding_map[n].name, name, len);
else
c = strcmpiW(xml_encoding_map[n].name, name);
if (!c)
return xml_encoding_map[n].enc;
if (c > 0)
max = n-1;
else
min = n+1;
}
return XmlEncoding_Unknown;
}
static HRESULT alloc_input_buffer(xmlreaderinput *input)
{
input_buffer *buffer;
HRESULT hr;
input->buffer = NULL;
buffer = readerinput_alloc(input, sizeof(*buffer));
if (!buffer) return E_OUTOFMEMORY;
buffer->input = input;
buffer->code_page = ~0; /* code page is unknown at this point */
hr = init_encoded_buffer(input, &buffer->utf16);
if (hr != S_OK) {
readerinput_free(input, buffer);
return hr;
}
hr = init_encoded_buffer(input, &buffer->encoded);
if (hr != S_OK) {
free_encoded_buffer(input, &buffer->utf16);
readerinput_free(input, buffer);
return hr;
}
input->buffer = buffer;
return S_OK;
}
static void free_input_buffer(input_buffer *buffer)
{
free_encoded_buffer(buffer->input, &buffer->encoded);
free_encoded_buffer(buffer->input, &buffer->utf16);
readerinput_free(buffer->input, buffer);
}
static void readerinput_release_stream(xmlreaderinput *readerinput)
{
if (readerinput->stream) {
ISequentialStream_Release(readerinput->stream);
readerinput->stream = NULL;
}
}
/* Queries already stored interface for IStream/ISequentialStream.
Interface supplied on creation will be overwritten */
static HRESULT readerinput_query_for_stream(xmlreaderinput *readerinput)
{
HRESULT hr;
readerinput_release_stream(readerinput);
hr = IUnknown_QueryInterface(readerinput->input, &IID_IStream, (void**)&readerinput->stream);
if (hr != S_OK)
hr = IUnknown_QueryInterface(readerinput->input, &IID_ISequentialStream, (void**)&readerinput->stream);
return hr;
}
/* reads a chunk to raw buffer */
static HRESULT readerinput_growraw(xmlreaderinput *readerinput)
{
encoded_buffer *buffer = &readerinput->buffer->encoded;
ULONG len = buffer->allocated - buffer->written, read;
HRESULT hr;
/* always try to get aligned to 4 bytes, so the only case we can get partialy read characters is
variable width encodings like UTF-8 */
len = (len + 3) & ~3;
/* try to use allocated space or grow */
if (buffer->allocated - buffer->written < len)
{
buffer->allocated *= 2;
buffer->data = readerinput_realloc(readerinput, buffer->data, buffer->allocated);
len = buffer->allocated - buffer->written;
}
hr = ISequentialStream_Read(readerinput->stream, buffer->data + buffer->written, len, &read);
if (FAILED(hr)) return hr;
TRACE("requested %d, read %d, ret 0x%08x\n", len, read, hr);
buffer->written += read;
return hr;
}
/* grows UTF-16 buffer so it has at least 'length' bytes free on return */
static void readerinput_grow(xmlreaderinput *readerinput, int length)
{
encoded_buffer *buffer = &readerinput->buffer->utf16;
/* grow if needed, plus 4 bytes to be sure null terminator will fit in */
if (buffer->allocated < buffer->written + length + 4)
{
int grown_size = max(2*buffer->allocated, buffer->allocated + length);
buffer->data = readerinput_realloc(readerinput, buffer->data, grown_size);
buffer->allocated = grown_size;
}
}
static HRESULT readerinput_detectencoding(xmlreaderinput *readerinput, xml_encoding *enc)
{
encoded_buffer *buffer = &readerinput->buffer->encoded;
static char startA[] = {'<','?','x','m'};
static WCHAR startW[] = {'<','?'};
static char utf8bom[] = {0xef,0xbb,0xbf};
static char utf16lebom[] = {0xff,0xfe};
*enc = XmlEncoding_Unknown;
if (buffer->written <= 3) return MX_E_INPUTEND;
/* try start symbols if we have enough data to do that, input buffer should contain
first chunk already */
if (!memcmp(buffer->data, startA, sizeof(startA)))
*enc = XmlEncoding_UTF8;
else if (!memcmp(buffer->data, startW, sizeof(startW)))
*enc = XmlEncoding_UTF16;
/* try with BOM now */
else if (!memcmp(buffer->data, utf8bom, sizeof(utf8bom)))
{
buffer->cur += sizeof(utf8bom);
*enc = XmlEncoding_UTF8;
}
else if (!memcmp(buffer->data, utf16lebom, sizeof(utf16lebom)))
{
buffer->cur += sizeof(utf16lebom);
*enc = XmlEncoding_UTF16;
}
return S_OK;
}
static int readerinput_get_utf8_convlen(xmlreaderinput *readerinput)
{
encoded_buffer *buffer = &readerinput->buffer->encoded;
int len = buffer->written;
/* complete single byte char */
if (!(buffer->data[len-1] & 0x80)) return len;
/* find start byte of multibyte char */
while (--len && !(buffer->data[len] & 0xc0))
;
return len;
}
/* returns byte length of complete char sequence for specified code page, */
static int readerinput_get_convlen(xmlreaderinput *readerinput, UINT cp)
{
encoded_buffer *buffer = &readerinput->buffer->encoded;
int len = buffer->written;
if (cp == CP_UTF8)
len = readerinput_get_utf8_convlen(readerinput);
else
len = buffer->written;
return len - (buffer->cur - buffer->data);
}
/* note that raw buffer content is kept */
static void readerinput_switchencoding(xmlreaderinput *readerinput, xml_encoding enc)
{
encoded_buffer *src = &readerinput->buffer->encoded;
encoded_buffer *dest = &readerinput->buffer->utf16;
int len, dest_len;
HRESULT hr;
UINT cp;
hr = get_code_page(enc, &cp);
if (FAILED(hr)) return;
len = readerinput_get_convlen(readerinput, cp);
TRACE("switching to cp %d\n", cp);
/* just copy in this case */
if (enc == XmlEncoding_UTF16)
{
readerinput_grow(readerinput, len);
memcpy(dest->data, src->cur, len);
readerinput->buffer->code_page = cp;
return;
}
dest_len = MultiByteToWideChar(cp, 0, src->cur, len, NULL, 0);
readerinput_grow(readerinput, dest_len);
MultiByteToWideChar(cp, 0, src->cur, len, (WCHAR*)dest->data, dest_len);
dest->data[dest_len] = 0;
readerinput->buffer->code_page = cp;
}
static inline const WCHAR *reader_get_cur(xmlreader *reader)
{
return (WCHAR*)reader->input->buffer->utf16.cur;
}
static int reader_cmp(xmlreader *reader, const WCHAR *str)
{
const WCHAR *ptr = reader_get_cur(reader);
int i = 0;
return strncmpW(str, ptr, strlenW(str));
while (str[i]) {
if (ptr[i] != str[i]) return 0;
i++;
}
return 1;
}
/* moves cursor n WCHARs forward */
static void reader_skipn(xmlreader *reader, int n)
{
encoded_buffer *buffer = &reader->input->buffer->utf16;
const WCHAR *ptr = reader_get_cur(reader);
while (*ptr++ && n--)
{
buffer->cur += sizeof(WCHAR);
reader->pos++;
}
}
/* [3] S ::= (#x20 | #x9 | #xD | #xA)+ */
static int reader_skipspaces(xmlreader *reader)
{
encoded_buffer *buffer = &reader->input->buffer->utf16;
const WCHAR *ptr = reader_get_cur(reader), *start = ptr;
while (*ptr == ' ' || *ptr == '\t' || *ptr == '\r' || *ptr == '\n')
{
buffer->cur += sizeof(WCHAR);
if (*ptr == '\r')
reader->pos = 0;
else if (*ptr == '\n')
{
reader->line++;
reader->pos = 0;
}
else
reader->pos++;
ptr++;
}
return ptr - start;
}
/* [26] VersionNum ::= '1.' [0-9]+ */
static HRESULT reader_parse_versionnum(xmlreader *reader)
{
const WCHAR *ptr, *ptr2, *start = reader_get_cur(reader);
static const WCHAR onedotW[] = {'1','.',0};
if (reader_cmp(reader, onedotW)) return WC_E_XMLDECL;
/* skip "1." */
reader_skipn(reader, 2);
ptr2 = ptr = reader_get_cur(reader);
while (*ptr >= '0' && *ptr <= '9')
ptr++;
if (ptr2 == ptr) return WC_E_DIGIT;
TRACE("version=%s\n", debugstr_wn(start, ptr-start));
reader_skipn(reader, ptr-ptr2);
return S_OK;
}
/* [25] Eq ::= S? '=' S? */
static HRESULT reader_parse_eq(xmlreader *reader)
{
static const WCHAR eqW[] = {'=',0};
reader_skipspaces(reader);
if (reader_cmp(reader, eqW)) return WC_E_EQUAL;
/* skip '=' */
reader_skipn(reader, 1);
reader_skipspaces(reader);
return S_OK;
}
/* [24] VersionInfo ::= S 'version' Eq ("'" VersionNum "'" | '"' VersionNum '"') */
static HRESULT reader_parse_versioninfo(xmlreader *reader)
{
static const WCHAR versionW[] = {'v','e','r','s','i','o','n',0};
HRESULT hr;
if (!reader_skipspaces(reader)) return WC_E_WHITESPACE;
if (reader_cmp(reader, versionW)) return WC_E_XMLDECL;
/* skip 'version' */
reader_skipn(reader, 7);
hr = reader_parse_eq(reader);
if (FAILED(hr)) return hr;
if (reader_cmp(reader, quoteW) && reader_cmp(reader, dblquoteW))
return WC_E_QUOTE;
/* skip "'"|'"' */
reader_skipn(reader, 1);
hr = reader_parse_versionnum(reader);
if (FAILED(hr)) return hr;
if (reader_cmp(reader, quoteW) && reader_cmp(reader, dblquoteW))
return WC_E_QUOTE;
/* skip "'"|'"' */
reader_skipn(reader, 1);
return S_OK;
}
/* ([A-Za-z0-9._] | '-') */
static inline int is_wchar_encname(WCHAR ch)
{
return ((ch >= 'A' && ch <= 'Z') ||
(ch >= 'a' && ch <= 'z') ||
(ch >= '0' && ch <= '9') ||
(ch == '.') || (ch == '_') ||
(ch == '-'));
}
/* [81] EncName ::= [A-Za-z] ([A-Za-z0-9._] | '-')* */
static HRESULT reader_parse_encname(xmlreader *reader)
{
const WCHAR *start = reader_get_cur(reader), *ptr;
xml_encoding enc;
int len;
if ((*start < 'A' || *start > 'Z') && (*start < 'a' || *start > 'z'))
return WC_E_ENCNAME;
ptr = start;
while (is_wchar_encname(*++ptr))
;
len = ptr - start;
enc = parse_encoding_name(start, len);
TRACE("encoding name %s\n", debugstr_wn(start, len));
if (enc == XmlEncoding_Unknown)
return WC_E_ENCNAME;
/* skip encoding name */
reader_skipn(reader, len);
return S_OK;
}
/* [80] EncodingDecl ::= S 'encoding' Eq ('"' EncName '"' | "'" EncName "'" ) */
static HRESULT reader_parse_encdecl(xmlreader *reader)
{
static const WCHAR encodingW[] = {'e','n','c','o','d','i','n','g',0};
HRESULT hr;
if (!reader_skipspaces(reader)) return WC_E_WHITESPACE;
if (reader_cmp(reader, encodingW)) return S_FALSE;
/* skip 'encoding' */
reader_skipn(reader, 8);
hr = reader_parse_eq(reader);
if (FAILED(hr)) return hr;
if (reader_cmp(reader, quoteW) && reader_cmp(reader, dblquoteW))
return WC_E_QUOTE;
/* skip "'"|'"' */
reader_skipn(reader, 1);
hr = reader_parse_encname(reader);
if (FAILED(hr)) return hr;
if (reader_cmp(reader, quoteW) && reader_cmp(reader, dblquoteW))
return WC_E_QUOTE;
/* skip "'"|'"' */
reader_skipn(reader, 1);
return S_OK;
}
/* [32] SDDecl ::= S 'standalone' Eq (("'" ('yes' | 'no') "'") | ('"' ('yes' | 'no') '"')) */
static HRESULT reader_parse_sddecl(xmlreader *reader)
{
static const WCHAR standaloneW[] = {'s','t','a','n','d','a','l','o','n','e',0};
static const WCHAR yesW[] = {'y','e','s',0};
static const WCHAR noW[] = {'n','o',0};
const WCHAR *start, *ptr;
HRESULT hr;
if (!reader_skipspaces(reader)) return WC_E_WHITESPACE;
if (reader_cmp(reader, standaloneW)) return S_FALSE;
/* skip 'standalone' */
reader_skipn(reader, 10);
hr = reader_parse_eq(reader);
if (FAILED(hr)) return hr;
if (reader_cmp(reader, quoteW) && reader_cmp(reader, dblquoteW))
return WC_E_QUOTE;
/* skip "'"|'"' */
reader_skipn(reader, 1);
if (reader_cmp(reader, yesW) && reader_cmp(reader, noW))
return WC_E_XMLDECL;
start = reader_get_cur(reader);
/* skip 'yes'|'no' */
reader_skipn(reader, reader_cmp(reader, yesW) ? 2 : 3);
ptr = reader_get_cur(reader);
TRACE("standalone=%s\n", debugstr_wn(start, ptr-start));
if (reader_cmp(reader, quoteW) && reader_cmp(reader, dblquoteW))
return WC_E_QUOTE;
/* skip "'"|'"' */
reader_skipn(reader, 1);
return S_OK;
}
/* [23] XMLDecl ::= '<?xml' VersionInfo EncodingDecl? SDDecl? S? '?>' */
static HRESULT reader_parse_xmldecl(xmlreader *reader)
{
static const WCHAR xmldeclW[] = {'<','?','x','m','l',0};
static const WCHAR declcloseW[] = {'?','>',0};
HRESULT hr;
/* check if we have "<?xml" */
if (reader_cmp(reader, xmldeclW)) return S_FALSE;
reader_skipn(reader, 5);
hr = reader_parse_versioninfo(reader);
if (FAILED(hr))
return hr;
hr = reader_parse_encdecl(reader);
if (FAILED(hr))
return hr;
hr = reader_parse_sddecl(reader);
if (FAILED(hr))
return hr;
reader_skipspaces(reader);
if (reader_cmp(reader, declcloseW)) return WC_E_XMLDECL;
reader_skipn(reader, 2);
return S_OK;
}
static HRESULT WINAPI xmlreader_QueryInterface(IXmlReader *iface, REFIID riid, void** ppvObject)
{
xmlreader *This = impl_from_IXmlReader(iface);
TRACE("%p %s %p\n", This, debugstr_guid(riid), ppvObject);
if (IsEqualGUID(riid, &IID_IUnknown) ||
IsEqualGUID(riid, &IID_IXmlReader))
{
*ppvObject = iface;
}
else
{
FIXME("interface %s not implemented\n", debugstr_guid(riid));
return E_NOINTERFACE;
}
IXmlReader_AddRef(iface);
return S_OK;
}
static ULONG WINAPI xmlreader_AddRef(IXmlReader *iface)
{
xmlreader *This = impl_from_IXmlReader(iface);
ULONG ref = InterlockedIncrement(&This->ref);
TRACE("(%p)->(%d)\n", This, ref);
return ref;
}
static ULONG WINAPI xmlreader_Release(IXmlReader *iface)
{
xmlreader *This = impl_from_IXmlReader(iface);
LONG ref = InterlockedDecrement(&This->ref);
TRACE("(%p)->(%d)\n", This, ref);
if (ref == 0)
{
IMalloc *imalloc = This->imalloc;
if (This->input) IUnknown_Release(&This->input->IXmlReaderInput_iface);
reader_free(This, This);
if (imalloc) IMalloc_Release(imalloc);
}
return ref;
}
static HRESULT WINAPI xmlreader_SetInput(IXmlReader* iface, IUnknown *input)
{
xmlreader *This = impl_from_IXmlReader(iface);
HRESULT hr;
TRACE("(%p %p)\n", This, input);
if (This->input)
{
readerinput_release_stream(This->input);
IUnknown_Release(&This->input->IXmlReaderInput_iface);
This->input = NULL;
}
This->line = This->pos = 0;
/* just reset current input */
if (!input)
{
This->state = XmlReadState_Initial;
return S_OK;
}
/* now try IXmlReaderInput, ISequentialStream, IStream */
hr = IUnknown_QueryInterface(input, &IID_IXmlReaderInput, (void**)&This->input);
if (hr != S_OK)
{
IXmlReaderInput *readerinput;
/* create IXmlReaderInput basing on supplied interface */
hr = CreateXmlReaderInputWithEncodingName(input,
NULL, NULL, FALSE, NULL, &readerinput);
if (hr != S_OK) return hr;
This->input = impl_from_IXmlReaderInput(readerinput);
}
/* set stream for supplied IXmlReaderInput */
hr = readerinput_query_for_stream(This->input);
if (hr == S_OK)
This->state = XmlReadState_Initial;
return hr;
}
static HRESULT WINAPI xmlreader_GetProperty(IXmlReader* iface, UINT property, LONG_PTR *value)
{
xmlreader *This = impl_from_IXmlReader(iface);
TRACE("(%p %u %p)\n", This, property, value);
if (!value) return E_INVALIDARG;
switch (property)
{
case XmlReaderProperty_DtdProcessing:
*value = This->dtdmode;
break;
case XmlReaderProperty_ReadState:
*value = This->state;
break;
default:
FIXME("Unimplemented property (%u)\n", property);
return E_NOTIMPL;
}
return S_OK;
}
static HRESULT WINAPI xmlreader_SetProperty(IXmlReader* iface, UINT property, LONG_PTR value)
{
xmlreader *This = impl_from_IXmlReader(iface);
TRACE("(%p %u %lu)\n", iface, property, value);
switch (property)
{
case XmlReaderProperty_DtdProcessing:
if (value < 0 || value > _DtdProcessing_Last) return E_INVALIDARG;
This->dtdmode = value;
break;
default:
FIXME("Unimplemented property (%u)\n", property);
return E_NOTIMPL;
}
return S_OK;
}
static HRESULT WINAPI xmlreader_Read(IXmlReader* iface, XmlNodeType *node_type)
{
xmlreader *This = impl_from_IXmlReader(iface);
FIXME("(%p)->(%p): stub\n", This, node_type);
if (This->state == XmlReadState_Closed) return S_FALSE;
/* if it's a first call for a new input we need to detect stream encoding */
if (This->state == XmlReadState_Initial)
{
xml_encoding enc;
HRESULT hr;
hr = readerinput_growraw(This->input);
if (FAILED(hr)) return hr;
/* try to detect encoding by BOM or data and set input code page */
hr = readerinput_detectencoding(This->input, &enc);
TRACE("detected encoding %s, 0x%08x\n", debugstr_w(xml_encoding_map[enc].name), hr);
if (FAILED(hr)) return hr;
/* always switch first time cause we have to put something in */
readerinput_switchencoding(This->input, enc);
/* parse xml declaration */
hr = reader_parse_xmldecl(This);
if (FAILED(hr)) return hr;
if (hr == S_OK)
{
This->state = XmlReadState_Interactive;
This->nodetype = *node_type = XmlNodeType_XmlDeclaration;
return S_OK;
}
}
return E_NOTIMPL;
}
static HRESULT WINAPI xmlreader_GetNodeType(IXmlReader* iface, XmlNodeType *node_type)
{
xmlreader *This = impl_from_IXmlReader(iface);
TRACE("(%p)->(%p)\n", This, node_type);
*node_type = This->nodetype;
return This->state == XmlReadState_Closed ? S_FALSE : S_OK;
}
static HRESULT WINAPI xmlreader_MoveToFirstAttribute(IXmlReader* iface)
{
FIXME("(%p): stub\n", iface);
return E_NOTIMPL;
}
static HRESULT WINAPI xmlreader_MoveToNextAttribute(IXmlReader* iface)
{
FIXME("(%p): stub\n", iface);
return E_NOTIMPL;
}
static HRESULT WINAPI xmlreader_MoveToAttributeByName(IXmlReader* iface,
LPCWSTR local_name,
LPCWSTR namespaceUri)
{
FIXME("(%p %p %p): stub\n", iface, local_name, namespaceUri);
return E_NOTIMPL;
}
static HRESULT WINAPI xmlreader_MoveToElement(IXmlReader* iface)
{
FIXME("(%p): stub\n", iface);
return E_NOTIMPL;
}
static HRESULT WINAPI xmlreader_GetQualifiedName(IXmlReader* iface, LPCWSTR *qualifiedName,
UINT *qualifiedName_length)
{
FIXME("(%p %p %p): stub\n", iface, qualifiedName, qualifiedName_length);
return E_NOTIMPL;
}
static HRESULT WINAPI xmlreader_GetNamespaceUri(IXmlReader* iface,
LPCWSTR *namespaceUri,
UINT *namespaceUri_length)
{
FIXME("(%p %p %p): stub\n", iface, namespaceUri, namespaceUri_length);
return E_NOTIMPL;
}
static HRESULT WINAPI xmlreader_GetLocalName(IXmlReader* iface,
LPCWSTR *local_name,
UINT *local_name_length)
{
FIXME("(%p %p %p): stub\n", iface, local_name, local_name_length);
return E_NOTIMPL;
}
static HRESULT WINAPI xmlreader_GetPrefix(IXmlReader* iface,
LPCWSTR *prefix,
UINT *prefix_length)
{
FIXME("(%p %p %p): stub\n", iface, prefix, prefix_length);
return E_NOTIMPL;
}
static HRESULT WINAPI xmlreader_GetValue(IXmlReader* iface,
LPCWSTR *value,
UINT *value_length)
{
FIXME("(%p %p %p): stub\n", iface, value, value_length);
return E_NOTIMPL;
}
static HRESULT WINAPI xmlreader_ReadValueChunk(IXmlReader* iface,
WCHAR *buffer,
UINT chunk_size,
UINT *read)
{
FIXME("(%p %p %u %p): stub\n", iface, buffer, chunk_size, read);
return E_NOTIMPL;
}
static HRESULT WINAPI xmlreader_GetBaseUri(IXmlReader* iface,
LPCWSTR *baseUri,
UINT *baseUri_length)
{
FIXME("(%p %p %p): stub\n", iface, baseUri, baseUri_length);
return E_NOTIMPL;
}
static BOOL WINAPI xmlreader_IsDefault(IXmlReader* iface)
{
FIXME("(%p): stub\n", iface);
return E_NOTIMPL;
}
static BOOL WINAPI xmlreader_IsEmptyElement(IXmlReader* iface)
{
FIXME("(%p): stub\n", iface);
return E_NOTIMPL;
}
static HRESULT WINAPI xmlreader_GetLineNumber(IXmlReader* iface, UINT *lineNumber)
{
xmlreader *This = impl_from_IXmlReader(iface);
TRACE("(%p %p)\n", This, lineNumber);
if (!lineNumber) return E_INVALIDARG;
*lineNumber = This->line;
return S_OK;
}
static HRESULT WINAPI xmlreader_GetLinePosition(IXmlReader* iface, UINT *linePosition)
{
xmlreader *This = impl_from_IXmlReader(iface);
TRACE("(%p %p)\n", This, linePosition);
if (!linePosition) return E_INVALIDARG;
*linePosition = This->pos;
return S_OK;
}
static HRESULT WINAPI xmlreader_GetAttributeCount(IXmlReader* iface, UINT *attributeCount)
{
FIXME("(%p %p): stub\n", iface, attributeCount);
return E_NOTIMPL;
}
static HRESULT WINAPI xmlreader_GetDepth(IXmlReader* iface, UINT *depth)
{
FIXME("(%p %p): stub\n", iface, depth);
return E_NOTIMPL;
}
static BOOL WINAPI xmlreader_IsEOF(IXmlReader* iface)
{
FIXME("(%p): stub\n", iface);
return E_NOTIMPL;
}
static const struct IXmlReaderVtbl xmlreader_vtbl =
{
xmlreader_QueryInterface,
xmlreader_AddRef,
xmlreader_Release,
xmlreader_SetInput,
xmlreader_GetProperty,
xmlreader_SetProperty,
xmlreader_Read,
xmlreader_GetNodeType,
xmlreader_MoveToFirstAttribute,
xmlreader_MoveToNextAttribute,
xmlreader_MoveToAttributeByName,
xmlreader_MoveToElement,
xmlreader_GetQualifiedName,
xmlreader_GetNamespaceUri,
xmlreader_GetLocalName,
xmlreader_GetPrefix,
xmlreader_GetValue,
xmlreader_ReadValueChunk,
xmlreader_GetBaseUri,
xmlreader_IsDefault,
xmlreader_IsEmptyElement,
xmlreader_GetLineNumber,
xmlreader_GetLinePosition,
xmlreader_GetAttributeCount,
xmlreader_GetDepth,
xmlreader_IsEOF
};
/** IXmlReaderInput **/
static HRESULT WINAPI xmlreaderinput_QueryInterface(IXmlReaderInput *iface, REFIID riid, void** ppvObject)
{
xmlreaderinput *This = impl_from_IXmlReaderInput(iface);
TRACE("%p %s %p\n", This, debugstr_guid(riid), ppvObject);
if (IsEqualGUID(riid, &IID_IXmlReaderInput) ||
IsEqualGUID(riid, &IID_IUnknown))
{
*ppvObject = iface;
}
else
{
WARN("interface %s not implemented\n", debugstr_guid(riid));
return E_NOINTERFACE;
}
IUnknown_AddRef(iface);
return S_OK;
}
static ULONG WINAPI xmlreaderinput_AddRef(IXmlReaderInput *iface)
{
xmlreaderinput *This = impl_from_IXmlReaderInput(iface);
ULONG ref = InterlockedIncrement(&This->ref);
TRACE("(%p)->(%d)\n", This, ref);
return ref;
}
static ULONG WINAPI xmlreaderinput_Release(IXmlReaderInput *iface)
{
xmlreaderinput *This = impl_from_IXmlReaderInput(iface);
LONG ref = InterlockedDecrement(&This->ref);
TRACE("(%p)->(%d)\n", This, ref);
if (ref == 0)
{
IMalloc *imalloc = This->imalloc;
if (This->input) IUnknown_Release(This->input);
if (This->stream) ISequentialStream_Release(This->stream);
if (This->buffer) free_input_buffer(This->buffer);
readerinput_free(This, This->baseuri);
readerinput_free(This, This);
if (imalloc) IMalloc_Release(imalloc);
}
return ref;
}
static const struct IUnknownVtbl xmlreaderinput_vtbl =
{
xmlreaderinput_QueryInterface,
xmlreaderinput_AddRef,
xmlreaderinput_Release
};
HRESULT WINAPI CreateXmlReader(REFIID riid, void **obj, IMalloc *imalloc)
{
xmlreader *reader;
TRACE("(%s, %p, %p)\n", wine_dbgstr_guid(riid), obj, imalloc);
if (!IsEqualGUID(riid, &IID_IXmlReader))
{
ERR("Unexpected IID requested -> (%s)\n", wine_dbgstr_guid(riid));
return E_FAIL;
}
if (imalloc)
reader = IMalloc_Alloc(imalloc, sizeof(*reader));
else
reader = heap_alloc(sizeof(*reader));
if(!reader) return E_OUTOFMEMORY;
reader->IXmlReader_iface.lpVtbl = &xmlreader_vtbl;
reader->ref = 1;
reader->input = NULL;
reader->state = XmlReadState_Closed;
reader->dtdmode = DtdProcessing_Prohibit;
reader->line = reader->pos = 0;
reader->imalloc = imalloc;
if (imalloc) IMalloc_AddRef(imalloc);
reader->nodetype = XmlNodeType_None;
*obj = &reader->IXmlReader_iface;
TRACE("returning iface %p\n", *obj);
return S_OK;
}
HRESULT WINAPI CreateXmlReaderInputWithEncodingName(IUnknown *stream,
IMalloc *imalloc,
LPCWSTR encoding,
BOOL hint,
LPCWSTR base_uri,
IXmlReaderInput **ppInput)
{
xmlreaderinput *readerinput;
HRESULT hr;
TRACE("%p %p %s %d %s %p\n", stream, imalloc, wine_dbgstr_w(encoding),
hint, wine_dbgstr_w(base_uri), ppInput);
if (!stream || !ppInput) return E_INVALIDARG;
if (imalloc)
readerinput = IMalloc_Alloc(imalloc, sizeof(*readerinput));
else
readerinput = heap_alloc(sizeof(*readerinput));
if(!readerinput) return E_OUTOFMEMORY;
readerinput->IXmlReaderInput_iface.lpVtbl = &xmlreaderinput_vtbl;
readerinput->ref = 1;
readerinput->imalloc = imalloc;
readerinput->stream = NULL;
if (imalloc) IMalloc_AddRef(imalloc);
readerinput->encoding = parse_encoding_name(encoding, -1);
readerinput->hint = hint;
readerinput->baseuri = readerinput_strdupW(readerinput, base_uri);
hr = alloc_input_buffer(readerinput);
if (hr != S_OK)
{
readerinput_free(readerinput, readerinput);
return hr;
}
IUnknown_QueryInterface(stream, &IID_IUnknown, (void**)&readerinput->input);
*ppInput = &readerinput->IXmlReaderInput_iface;
TRACE("returning iface %p\n", *ppInput);
return S_OK;
}
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