schema.c 46.5 KB
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/*
 * Schema cache implementation
 *
 * Copyright 2007 Huw Davies
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 * Copyright 2010 Adam Martinson for CodeWeavers
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 *
 * 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

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#include <assert.h>
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#include <stdarg.h>
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#include <libxml/xmlerror.h>
#include <libxml/tree.h>
#include <libxml/xmlschemas.h>
#include <libxml/schemasInternals.h>
#include <libxml/hash.h>
#include <libxml/parser.h>
#include <libxml/parserInternals.h>
#include <libxml/xmlIO.h>
#include <libxml/xmlversion.h>
#include <libxml/xpath.h>
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#include "windef.h"
#include "winbase.h"
#include "winuser.h"
#include "ole2.h"
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#include "msxml6.h"
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#include "wine/debug.h"

#include "msxml_private.h"

WINE_DEFAULT_DEBUG_CHANNEL(msxml);

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/* We use a chained hashtable, which can hold any number of schemas
 * TODO: grow/shrink hashtable depending on load factor
 * TODO: implement read-only where appropriate
 */

/* This is just the number of buckets, should be prime */
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#define DEFAULT_HASHTABLE_SIZE 17
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xmlDocPtr XDR_to_XSD_doc(xmlDocPtr xdr_doc, xmlChar const* nsURI);

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static const xmlChar XSD_schema[] = "schema";
static const xmlChar XSD_nsURI[] = "http://www.w3.org/2001/XMLSchema";
static const xmlChar XDR_schema[] = "Schema";
static const xmlChar XDR_nsURI[] = "urn:schemas-microsoft-com:xml-data";
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static const xmlChar DT_nsURI[] = "urn:schemas-microsoft-com:datatypes";

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static xmlChar *        datatypes_src;
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static int              datatypes_len;
static HGLOBAL          datatypes_handle;
static HRSRC            datatypes_rsrc;
static xmlSchemaPtr     datatypes_schema;

static const WCHAR      emptyW[] = {0};
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/* Supported types:
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 * msxml3 - XDR only
 * msxml4 - XDR & XSD
 * msxml5 - XDR & XSD
 * mxsml6 - XSD only
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 *
 * CacheType_NS is a special type used for read-only collection build with
 * IXMLDOMDocument2::namespaces()
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 */
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typedef enum  {
    CacheEntryType_Invalid,
    CacheEntryType_XDR,
    CacheEntryType_XSD,
    CacheEntryType_NS
} CacheEntryType;
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typedef struct
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{
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    DispatchEx dispex;
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    IXMLDOMSchemaCollection2 IXMLDOMSchemaCollection2_iface;
    LONG ref;

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    MSXML_VERSION version;
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    xmlHashTablePtr cache;
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    xmlChar **uris;
    int allocated;
    int count;
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    VARIANT_BOOL validateOnLoad;
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    int read_only;
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} schema_cache;

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typedef struct
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{
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    CacheEntryType type;
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    xmlSchemaPtr schema;
    xmlDocPtr doc;
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    LONG ref;
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} cache_entry;
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static const tid_t schema_cache_se_tids[] = {
    IXMLDOMSchemaCollection_tid,
    IXMLDOMSchemaCollection2_tid,
    NULL_tid
};

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/* datatypes lookup stuff
 * generated with help from gperf */
#define DT_MIN_STR_LEN 2
#define DT_MAX_STR_LEN 11
#define DT_MIN_HASH_VALUE 2
#define DT_MAX_HASH_VALUE 115

static const xmlChar DT_bin_base64[] = "bin.base64";
static const xmlChar DT_bin_hex[] = "bin.hex";
static const xmlChar DT_boolean[] = "boolean";
static const xmlChar DT_char[] = "char";
static const xmlChar DT_date[] = "date";
static const xmlChar DT_date_tz[] = "date.tz";
static const xmlChar DT_dateTime[] = "dateTime";
static const xmlChar DT_dateTime_tz[] = "dateTime.tz";
static const xmlChar DT_entity[] = "entity";
static const xmlChar DT_entities[] = "entities";
static const xmlChar DT_enumeration[] = "enumeration";
static const xmlChar DT_fixed_14_4[] = "fixed.14.4";
static const xmlChar DT_float[] = "float";
static const xmlChar DT_i1[] = "i1";
static const xmlChar DT_i2[] = "i2";
static const xmlChar DT_i4[] = "i4";
static const xmlChar DT_i8[] = "i8";
static const xmlChar DT_id[] = "id";
static const xmlChar DT_idref[] = "idref";
static const xmlChar DT_idrefs[] = "idrefs";
static const xmlChar DT_int[] = "int";
static const xmlChar DT_nmtoken[] = "nmtoken";
static const xmlChar DT_nmtokens[] = "nmtokens";
static const xmlChar DT_notation[] = "notation";
static const xmlChar DT_number[] = "number";
static const xmlChar DT_r4[] = "r4";
static const xmlChar DT_r8[] = "r8";
static const xmlChar DT_string[] = "string";
static const xmlChar DT_time[] = "time";
static const xmlChar DT_time_tz[] = "time.tz";
static const xmlChar DT_ui1[] = "ui1";
static const xmlChar DT_ui2[] = "ui2";
static const xmlChar DT_ui4[] = "ui4";
static const xmlChar DT_ui8[] = "ui8";
static const xmlChar DT_uri[] = "uri";
static const xmlChar DT_uuid[] = "uuid";

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static const OLECHAR wDT_bin_base64[] = {'b','i','n','.','b','a','s','e','6','4',0};
static const OLECHAR wDT_bin_hex[] = {'b','i','n','.','h','e','x',0};
static const OLECHAR wDT_boolean[] = {'b','o','o','l','e','a','n',0};
static const OLECHAR wDT_char[] = {'c','h','a','r',0};
static const OLECHAR wDT_date[] = {'d','a','t','e',0};
static const OLECHAR wDT_date_tz[] = {'d','a','t','e','.','t','z',0};
static const OLECHAR wDT_dateTime[] = {'d','a','t','e','T','i','m','e',0};
static const OLECHAR wDT_dateTime_tz[] = {'d','a','t','e','T','i','m','e','.','t','z',0};
static const OLECHAR wDT_entity[] = {'e','n','t','i','t','y',0};
static const OLECHAR wDT_entities[] = {'e','n','t','i','t','i','e','s',0};
static const OLECHAR wDT_enumeration[] = {'e','n','u','m','e','r','a','t','i','o','n',0};
static const OLECHAR wDT_fixed_14_4[] = {'f','i','x','e','d','.','1','4','.','4',0};
static const OLECHAR wDT_float[] = {'f','l','o','a','t',0};
static const OLECHAR wDT_i1[] = {'i','1',0};
static const OLECHAR wDT_i2[] = {'i','2',0};
static const OLECHAR wDT_i4[] = {'i','4',0};
static const OLECHAR wDT_i8[] = {'i','8',0};
static const OLECHAR wDT_id[] = {'i','d',0};
static const OLECHAR wDT_idref[] = {'i','d','r','e','f',0};
static const OLECHAR wDT_idrefs[] = {'i','d','r','e','f','s',0};
static const OLECHAR wDT_int[] = {'i','n','t',0};
static const OLECHAR wDT_nmtoken[] = {'n','m','t','o','k','e','n',0};
static const OLECHAR wDT_nmtokens[] = {'n','m','t','o','k','e','n','s',0};
static const OLECHAR wDT_notation[] = {'n','o','t','a','t','i','o','n',0};
static const OLECHAR wDT_number[] = {'n','u','m','b','e','r',0};
static const OLECHAR wDT_r4[] = {'r','4',0};
static const OLECHAR wDT_r8[] = {'r','8',0};
static const OLECHAR wDT_string[] = {'s','t','r','i','n','g',0};
static const OLECHAR wDT_time[] = {'t','i','m','e',0};
static const OLECHAR wDT_time_tz[] = {'t','i','m','e','.','t','z',0};
static const OLECHAR wDT_ui1[] = {'u','i','1',0};
static const OLECHAR wDT_ui2[] = {'u','i','2',0};
static const OLECHAR wDT_ui4[] = {'u','i','4',0};
static const OLECHAR wDT_ui8[] = {'u','i','8',0};
static const OLECHAR wDT_uri[] = {'u','r','i',0};
static const OLECHAR wDT_uuid[] = {'u','u','i','d',0};

static const BYTE hash_assoc_values[] =
{
    116, 116, 116, 116, 116, 116, 116, 116, 116, 116,
    116, 116, 116, 116, 116, 116, 116, 116, 116, 116,
    116, 116, 116, 116, 116, 116, 116, 116, 116, 116,
    116, 116, 116, 116, 116, 116, 116, 116, 116, 116,
    116, 116, 116, 116, 116, 116,  10, 116, 116,  55,
     45, 116,   5, 116,   0, 116,   0, 116, 116, 116,
    116, 116, 116, 116, 116,   5,   0,   0,  20,   0,
      0,  10,   0,   0, 116,   0,   0,   0,  15,   5,
    116, 116,  10,   0,   0,   0, 116, 116,   0,   0,
     10, 116, 116, 116, 116, 116, 116,   5,   0,   0,
     20,   0,   0,  10,   0,   0, 116,   0,   0,   0,
     15,   5, 116, 116,  10,   0,   0,   0, 116, 116,
      0,   0,  10, 116, 116, 116, 116, 116, 116, 116,
    116, 116, 116, 116, 116, 116, 116, 116, 116, 116,
    116, 116, 116, 116, 116, 116, 116, 116, 116, 116,
    116, 116, 116, 116, 116, 116, 116, 116, 116, 116,
    116, 116, 116, 116, 116, 116, 116, 116, 116, 116,
    116, 116, 116, 116, 116, 116, 116, 116, 116, 116,
    116, 116, 116, 116, 116, 116, 116, 116, 116, 116,
    116, 116, 116, 116, 116, 116, 116, 116, 116, 116,
    116, 116, 116, 116, 116, 116, 116, 116, 116, 116,
    116, 116, 116, 116, 116, 116, 116, 116, 116, 116,
    116, 116, 116, 116, 116, 116, 116, 116, 116, 116,
    116, 116, 116, 116, 116, 116, 116, 116, 116, 116,
    116, 116, 116, 116, 116, 116, 116, 116, 116, 116,
    116, 116, 116, 116, 116, 116
};

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static void LIBXML2_LOG_CALLBACK parser_error(void* ctx, char const* msg, ...)
{
    va_list ap;
    va_start(ap, msg);
    LIBXML2_CALLBACK_ERR(Schema_parse, msg, ap);
    va_end(ap);
}

static void LIBXML2_LOG_CALLBACK parser_warning(void* ctx, char const* msg, ...)
{
    va_list ap;
    va_start(ap, msg);
    LIBXML2_CALLBACK_WARN(Schema_parse, msg, ap);
    va_end(ap);
}

static void parser_serror(void* ctx, xmlErrorPtr err)
{
    LIBXML2_CALLBACK_SERROR(Schema_parse, err);
}

static inline xmlSchemaPtr Schema_parse(xmlSchemaParserCtxtPtr spctx)
{
    TRACE("(%p)\n", spctx);

    xmlSchemaSetParserErrors(spctx, parser_error, parser_warning, NULL);
    xmlSchemaSetParserStructuredErrors(spctx, parser_serror, NULL);
    return xmlSchemaParse(spctx);
}

static void LIBXML2_LOG_CALLBACK validate_error(void* ctx, char const* msg, ...)
{
    va_list ap;
    va_start(ap, msg);
    LIBXML2_CALLBACK_ERR(Schema_validate_tree, msg, ap);
    va_end(ap);
}

static void LIBXML2_LOG_CALLBACK validate_warning(void* ctx, char const* msg, ...)
{
    va_list ap;
    va_start(ap, msg);
    LIBXML2_CALLBACK_WARN(Schema_validate_tree, msg, ap);
    va_end(ap);
}

static void validate_serror(void* ctx, xmlErrorPtr err)
{
    LIBXML2_CALLBACK_SERROR(Schema_validate_tree, err);
}

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static HRESULT schema_cache_get_item(IUnknown *iface, LONG index, VARIANT *item)
{
    V_VT(item) = VT_BSTR;
    return IXMLDOMSchemaCollection2_get_namespaceURI((IXMLDOMSchemaCollection2*)iface, index, &V_BSTR(item));
}

static const struct enumvariant_funcs schemacache_enumvariant = {
    schema_cache_get_item,
    NULL
};

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static inline HRESULT Schema_validate_tree(xmlSchemaPtr schema, xmlNodePtr tree)
{
    xmlSchemaValidCtxtPtr svctx;
    int err;

    TRACE("(%p, %p)\n", schema, tree);
    /* TODO: if validateOnLoad property is false,
     *       we probably need to validate the schema here. */
    svctx = xmlSchemaNewValidCtxt(schema);
    xmlSchemaSetValidErrors(svctx, validate_error, validate_warning, NULL);
    xmlSchemaSetValidStructuredErrors(svctx, validate_serror, NULL);

    if (tree->type == XML_DOCUMENT_NODE)
        err = xmlSchemaValidateDoc(svctx, (xmlDocPtr)tree);
    else
        err = xmlSchemaValidateOneElement(svctx, tree);

    xmlSchemaFreeValidCtxt(svctx);
    return err? S_FALSE : S_OK;
}

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static DWORD dt_hash(xmlChar const* str, int len /* calculated if -1 */)
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{
    DWORD hval = (len == -1)? xmlStrlen(str) : len;

    switch (hval)
    {
        default:
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            hval += hash_assoc_values[str[10]];
            /*FALLTHROUGH*/
        case 10:
            hval += hash_assoc_values[str[9]];
            /*FALLTHROUGH*/
        case 9:
            hval += hash_assoc_values[str[8]];
            /*FALLTHROUGH*/
        case 8:
            hval += hash_assoc_values[str[7]];
            /*FALLTHROUGH*/
        case 7:
            hval += hash_assoc_values[str[6]];
            /*FALLTHROUGH*/
        case 6:
            hval += hash_assoc_values[str[5]];
            /*FALLTHROUGH*/
        case 5:
            hval += hash_assoc_values[str[4]];
            /*FALLTHROUGH*/
        case 4:
            hval += hash_assoc_values[str[3]];
            /*FALLTHROUGH*/
        case 3:
            hval += hash_assoc_values[str[2]];
            /*FALLTHROUGH*/
        case 2:
            hval += hash_assoc_values[str[1]];
            /*FALLTHROUGH*/
        case 1:
            hval += hash_assoc_values[str[0]];
            break;
    }
    return hval;
}

static DWORD dt_hash_bstr(OLECHAR const* bstr, int len /* calculated if -1 */)
{
    DWORD hval = (len == -1)? lstrlenW(bstr) : len;

    switch (hval)
    {
        default:
            hval += (bstr[10] & 0xFF00)? 116 : hash_assoc_values[bstr[10]];
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            /*FALLTHROUGH*/
        case 10:
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            hval += (bstr[9] & 0xFF00)? 116 : hash_assoc_values[bstr[9]];
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            /*FALLTHROUGH*/
        case 9:
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            hval += (bstr[8] & 0xFF00)? 116 : hash_assoc_values[bstr[8]];
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            /*FALLTHROUGH*/
        case 8:
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            hval += (bstr[7] & 0xFF00)? 116 : hash_assoc_values[bstr[7]];
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            /*FALLTHROUGH*/
        case 7:
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            hval += (bstr[6] & 0xFF00)? 116 : hash_assoc_values[bstr[6]];
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            /*FALLTHROUGH*/
        case 6:
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            hval += (bstr[5] & 0xFF00)? 116 : hash_assoc_values[bstr[5]];
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            /*FALLTHROUGH*/
        case 5:
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            hval += (bstr[4] & 0xFF00)? 116 : hash_assoc_values[bstr[4]];
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            /*FALLTHROUGH*/
        case 4:
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            hval += (bstr[3] & 0xFF00)? 116 : hash_assoc_values[bstr[3]];
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            /*FALLTHROUGH*/
        case 3:
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            hval += (bstr[2] & 0xFF00)? 116 : hash_assoc_values[bstr[2]];
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            /*FALLTHROUGH*/
        case 2:
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            hval += (bstr[1] & 0xFF00)? 116 : hash_assoc_values[bstr[1]];
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            /*FALLTHROUGH*/
        case 1:
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            hval += (bstr[0] & 0xFF00)? 116 : hash_assoc_values[bstr[0]];
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            break;
    }
    return hval;
}

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static const xmlChar *const DT_string_table[LAST_DT] =
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{
    DT_bin_base64,
    DT_bin_hex,
    DT_boolean,
    DT_char,
    DT_date,
    DT_date_tz,
    DT_dateTime,
    DT_dateTime_tz,
    DT_entity,
    DT_entities,
    DT_enumeration,
    DT_fixed_14_4,
    DT_float,
    DT_i1,
    DT_i2,
    DT_i4,
    DT_i8,
    DT_id,
    DT_idref,
    DT_idrefs,
    DT_int,
    DT_nmtoken,
    DT_nmtokens,
    DT_notation,
    DT_number,
    DT_r4,
    DT_r8,
    DT_string,
    DT_time,
    DT_time_tz,
    DT_ui1,
    DT_ui2,
    DT_ui4,
    DT_ui8,
    DT_uri,
    DT_uuid
};

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static const WCHAR *const DT_wstring_table[LAST_DT] =
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{
    wDT_bin_base64,
    wDT_bin_hex,
    wDT_boolean,
    wDT_char,
    wDT_date,
    wDT_date_tz,
    wDT_dateTime,
    wDT_dateTime_tz,
    wDT_entity,
    wDT_entities,
    wDT_enumeration,
    wDT_fixed_14_4,
    wDT_float,
    wDT_i1,
    wDT_i2,
    wDT_i4,
    wDT_i8,
    wDT_id,
    wDT_idref,
    wDT_idrefs,
    wDT_int,
    wDT_nmtoken,
    wDT_nmtokens,
    wDT_notation,
    wDT_number,
    wDT_r4,
    wDT_r8,
    wDT_string,
    wDT_time,
    wDT_time_tz,
    wDT_ui1,
    wDT_ui2,
    wDT_ui4,
    wDT_ui8,
    wDT_uri,
    wDT_uuid
};

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static const XDR_DT DT_lookup_table[] =
{
    -1, -1,
    DT_I8,
    DT_UI8,
    DT_TIME,
    -1, -1,
    DT_I4,
    DT_UI4,
    -1, -1, -1,
    DT_R8,
    DT_URI,
    -1,
    DT_FLOAT,
    -1,
    DT_R4,
    DT_INT,
    DT_CHAR,
    -1,
    DT_ENTITY,
    DT_ID,
    DT_ENTITIES,
    DT_UUID,
    -1, -1,
    DT_TIME_TZ,
    -1,
    DT_DATE,
    -1,
    DT_NUMBER,
    DT_BIN_HEX,
    DT_DATETIME,
    -1,
    DT_IDREF,
    DT_IDREFS,
    DT_BOOLEAN,
    -1, -1, -1,
    DT_STRING,
    DT_NMTOKEN,
    DT_NMTOKENS,
    -1,
    DT_BIN_BASE64,
    -1,
    DT_I2,
    DT_UI2,
    -1, -1, -1,
    DT_DATE_TZ,
    DT_NOTATION,
    -1, -1,
    DT_DATETIME_TZ,
    DT_I1,
    DT_UI1,
    -1, -1,
    DT_ENUMERATION,
    -1, -1, -1, -1, -1, -1, -1, -1, -1,
    -1, -1, -1, -1, -1, -1, -1, -1, -1,
    -1, -1, -1, -1, -1, -1, -1, -1, -1,
    -1, -1, -1, -1, -1, -1, -1, -1, -1,
    -1, -1, -1, -1, -1, -1, -1, -1, -1,
    -1, -1, -1, -1, -1, -1, -1, -1,
    DT_FIXED_14_4
};

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XDR_DT str_to_dt(xmlChar const* str, int len /* calculated if -1 */)
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{
    DWORD hash = dt_hash(str, len);
    XDR_DT dt = DT_INVALID;

    if (hash <= DT_MAX_HASH_VALUE)
        dt = DT_lookup_table[hash];

    if (dt != DT_INVALID && xmlStrcasecmp(str, DT_string_table[dt]) == 0)
        return dt;

    return DT_INVALID;
}

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XDR_DT bstr_to_dt(OLECHAR const* bstr, int len /* calculated if -1 */)
{
    DWORD hash = dt_hash_bstr(bstr, len);
    XDR_DT dt = DT_INVALID;

    if (hash <= DT_MAX_HASH_VALUE)
        dt = DT_lookup_table[hash];

    if (dt != DT_INVALID && lstrcmpiW(bstr, DT_wstring_table[dt]) == 0)
        return dt;

    return DT_INVALID;
}

xmlChar const* dt_to_str(XDR_DT dt)
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{
    if (dt == DT_INVALID)
        return NULL;

    return DT_string_table[dt];
}

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OLECHAR const* dt_to_bstr(XDR_DT dt)
{
    if (dt == DT_INVALID)
        return NULL;

    return DT_wstring_table[dt];
}

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const char* debugstr_dt(XDR_DT dt)
{
    return debugstr_a(dt != DT_INVALID ? (const char*)DT_string_table[dt] : NULL);
}

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HRESULT dt_validate(XDR_DT dt, xmlChar const* content)
{
    xmlDocPtr tmp_doc;
    xmlNodePtr node;
    xmlNsPtr ns;
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    HRESULT hr;

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    TRACE("(dt:%s, %s)\n", debugstr_dt(dt), debugstr_a((char const*)content));
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    if (!datatypes_schema)
    {
        xmlSchemaParserCtxtPtr spctx;
        assert(datatypes_src != NULL);
        spctx = xmlSchemaNewMemParserCtxt((char const*)datatypes_src, datatypes_len);
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        datatypes_schema = Schema_parse(spctx);
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        xmlSchemaFreeParserCtxt(spctx);
    }

    switch (dt)
    {
        case DT_INVALID:
            return E_FAIL;
        case DT_BIN_BASE64:
        case DT_BIN_HEX:
        case DT_BOOLEAN:
        case DT_CHAR:
        case DT_DATE:
        case DT_DATE_TZ:
        case DT_DATETIME:
        case DT_DATETIME_TZ:
        case DT_FIXED_14_4:
        case DT_FLOAT:
        case DT_I1:
        case DT_I2:
        case DT_I4:
        case DT_I8:
        case DT_INT:
        case DT_NMTOKEN:
        case DT_NMTOKENS:
        case DT_NUMBER:
        case DT_R4:
        case DT_R8:
        case DT_STRING:
        case DT_TIME:
        case DT_TIME_TZ:
        case DT_UI1:
        case DT_UI2:
        case DT_UI4:
        case DT_UI8:
        case DT_URI:
        case DT_UUID:
641 642 643 644 645 646 647 648 649
            if (!datatypes_schema)
            {
                ERR("failed to load schema for urn:schemas-microsoft-com:datatypes, "
                    "you're probably using an old version of libxml2: " LIBXML_DOTTED_VERSION "\n");

                /* Hopefully they don't need much in the way of XDR datatypes support... */
                return S_OK;
            }

650 651 652 653 654 655 656 657
            if (content && xmlStrlen(content))
            {
                tmp_doc = xmlNewDoc(NULL);
                node = xmlNewChild((xmlNodePtr)tmp_doc, NULL, dt_to_str(dt), content);
                ns = xmlNewNs(node, DT_nsURI, BAD_CAST "dt");
                xmlSetNs(node, ns);
                xmlDocSetRootElement(tmp_doc, node);

658
                hr = Schema_validate_tree(datatypes_schema, (xmlNodePtr)tmp_doc);
659 660 661 662
                xmlFreeDoc(tmp_doc);
            }
            else
            {   /* probably the node is being created manually and has no content yet */
663
                hr = S_OK;
664
            }
665
            return hr;
666
        default:
667
            FIXME("need to handle dt:%s\n", debugstr_dt(dt));
668 669 670 671
            return S_OK;
    }
}

672 673 674 675 676 677 678 679 680 681 682 683 684 685 686 687 688
static inline xmlChar const* get_node_nsURI(xmlNodePtr node)
{
    return (node->ns != NULL)? node->ns->href : NULL;
}

static inline cache_entry* get_entry(schema_cache* This, xmlChar const* nsURI)
{
    return (!nsURI)? xmlHashLookup(This->cache, BAD_CAST "") :
                     xmlHashLookup(This->cache, nsURI);
}

static inline xmlSchemaPtr get_node_schema(schema_cache* This, xmlNodePtr node)
{
    cache_entry* entry = get_entry(This, get_node_nsURI(node));
    return (!entry)? NULL : entry->schema;
}

689
static xmlExternalEntityLoader _external_entity_loader;
690 691 692 693 694 695

static xmlParserInputPtr external_entity_loader(const char *URL, const char *ID,
                                                xmlParserCtxtPtr ctxt)
{
    xmlParserInputPtr input;

696
    TRACE("(%s %s %p)\n", debugstr_a(URL), debugstr_a(ID), ctxt);
697 698 699 700

    assert(MSXML_hInstance != NULL);
    assert(datatypes_rsrc != NULL);
    assert(datatypes_handle != NULL);
701
    assert(datatypes_src != NULL);
702 703 704 705 706

    /* TODO: if the desired schema is in the cache, load it from there */
    if (lstrcmpA(URL, "urn:schemas-microsoft-com:datatypes") == 0)
    {
        TRACE("loading built-in schema for %s\n", URL);
707
        input = xmlNewStringInputStream(ctxt, datatypes_src);
708 709 710 711 712 713 714 715 716 717 718
    }
    else
    {
        input = _external_entity_loader(URL, ID, ctxt);
    }

    return input;
}

void schemasInit(void)
{
719
    xmlChar* buf;
720 721 722 723 724 725 726 727 728 729 730 731
    if (!(datatypes_rsrc = FindResourceA(MSXML_hInstance, "DATATYPES", "XML")))
    {
        FIXME("failed to find resource for %s\n", DT_nsURI);
        return;
    }

    if (!(datatypes_handle = LoadResource(MSXML_hInstance, datatypes_rsrc)))
    {
        FIXME("failed to load resource for %s\n", DT_nsURI);
        return;
    }
    buf = LockResource(datatypes_handle);
732
    datatypes_len = SizeofResource(MSXML_hInstance, datatypes_rsrc);
733 734 735

    /* Resource is loaded as raw data,
     * need a null-terminated string */
736
    while (buf[datatypes_len - 1] != '>') datatypes_len--;
737
    datatypes_src = heap_alloc(datatypes_len + 1);
738 739
    memcpy(datatypes_src, buf, datatypes_len);
    datatypes_src[datatypes_len] = 0;
740

741
    if (xmlGetExternalEntityLoader() != external_entity_loader)
742 743 744 745 746 747 748 749
    {
        _external_entity_loader = xmlGetExternalEntityLoader();
        xmlSetExternalEntityLoader(external_entity_loader);
    }
}

void schemasCleanup(void)
{
750
    xmlSchemaFree(datatypes_schema);
751
    heap_free(datatypes_src);
752 753 754
    xmlSetExternalEntityLoader(_external_entity_loader);
}

755
static LONG cache_entry_add_ref(cache_entry* entry)
756
{
757
    LONG ref = InterlockedIncrement(&entry->ref);
758
    TRACE("%p, refcount %ld.\n", entry, ref);
759
    return ref;
760 761
}

762
static LONG cache_entry_release(cache_entry* entry)
763
{
764
    LONG ref = InterlockedDecrement(&entry->ref);
765
    TRACE("%p, refcount %ld.\n", entry, ref);
766

767 768
    if (ref == 0)
    {
769
        if (entry->type == CacheEntryType_XSD)
770 771 772 773 774
        {
            xmldoc_release(entry->doc);
            entry->schema->doc = NULL;
            xmlSchemaFree(entry->schema);
        }
775
        else if (entry->type == CacheEntryType_XDR)
776 777
        {
            xmldoc_release(entry->doc);
778 779 780
            xmldoc_release(entry->schema->doc);
            entry->schema->doc = NULL;
            xmlSchemaFree(entry->schema);
781
        }
782 783

        heap_free(entry);
784 785 786
    }
    return ref;
}
787

788 789
static const struct IXMLDOMSchemaCollection2Vtbl XMLDOMSchemaCollection2Vtbl;

790
static inline schema_cache* impl_from_IXMLDOMSchemaCollection2(IXMLDOMSchemaCollection2* iface)
791
{
792
    return CONTAINING_RECORD(iface, schema_cache, IXMLDOMSchemaCollection2_iface);
793 794
}

795 796 797 798 799 800 801 802 803 804
static inline schema_cache* impl_from_IXMLDOMSchemaCollection(IXMLDOMSchemaCollection* iface)
{
    return CONTAINING_RECORD(iface, schema_cache, IXMLDOMSchemaCollection2_iface);
}

static inline schema_cache* unsafe_impl_from_IXMLDOMSchemaCollection(IXMLDOMSchemaCollection *iface)
{
    return iface->lpVtbl == (void*)&XMLDOMSchemaCollection2Vtbl ? impl_from_IXMLDOMSchemaCollection(iface) : NULL;
}

805
static inline CacheEntryType cache_type_from_xmlDocPtr(xmlDocPtr schema)
806
{
807
    xmlNodePtr root = NULL;
808 809 810 811 812 813 814 815
    if (schema)
        root = xmlDocGetRootElement(schema);
    if (root && root->ns)
    {

        if (xmlStrEqual(root->name, XDR_schema) &&
            xmlStrEqual(root->ns->href, XDR_nsURI))
        {
816
            return CacheEntryType_XDR;
817 818 819 820
        }
        else if (xmlStrEqual(root->name, XSD_schema) &&
                 xmlStrEqual(root->ns->href, XSD_nsURI))
        {
821
            return CacheEntryType_XSD;
822 823
        }
    }
824
    return CacheEntryType_Invalid;
825 826
}

827 828 829 830 831
static BOOL link_datatypes(xmlDocPtr schema)
{
    xmlNodePtr root, next, child;
    xmlNsPtr ns;

832
    assert(xmlGetExternalEntityLoader() == external_entity_loader);
833 834 835 836 837 838 839 840 841 842 843 844 845 846 847 848 849 850 851 852 853 854
    root = xmlDocGetRootElement(schema);
    if (!root)
        return FALSE;

    for (ns = root->nsDef; ns != NULL; ns = ns->next)
    {
        if (xmlStrEqual(ns->href, DT_nsURI))
            break;
    }

    if (!ns)
        return FALSE;

    next = xmlFirstElementChild(root);
    child = xmlNewChild(root, NULL, BAD_CAST "import", NULL);
    if (next) child = xmlAddPrevSibling(next, child);
    xmlSetProp(child, BAD_CAST "namespace", DT_nsURI);
    xmlSetProp(child, BAD_CAST "schemaLocation", DT_nsURI);

    return TRUE;
}

855
static cache_entry* cache_entry_from_xsd_doc(xmlDocPtr doc, xmlChar const* nsURI, MSXML_VERSION v)
856 857 858 859 860
{
    cache_entry* entry = heap_alloc(sizeof(cache_entry));
    xmlSchemaParserCtxtPtr spctx;
    xmlDocPtr new_doc = xmlCopyDoc(doc, 1);

861 862
    link_datatypes(new_doc);

863 864
    /* TODO: if the nsURI is different from the default xmlns or targetNamespace,
     *       do we need to do something special here? */
865
    entry->type = CacheEntryType_XSD;
866 867 868
    entry->ref = 0;
    spctx = xmlSchemaNewDocParserCtxt(new_doc);

869
    if ((entry->schema = Schema_parse(spctx)))
870
    {
871
        xmldoc_init(entry->schema->doc, v);
872 873 874 875 876 877 878 879 880 881 882 883 884 885
        entry->doc = entry->schema->doc;
        xmldoc_add_ref(entry->doc);
    }
    else
    {
        FIXME("failed to parse doc\n");
        xmlFreeDoc(new_doc);
        heap_free(entry);
        entry = NULL;
    }
    xmlSchemaFreeParserCtxt(spctx);
    return entry;
}

886
static cache_entry* cache_entry_from_xdr_doc(xmlDocPtr doc, xmlChar const* nsURI, MSXML_VERSION version)
887 888
{
    cache_entry* entry = heap_alloc(sizeof(cache_entry));
889 890
    xmlSchemaParserCtxtPtr spctx;
    xmlDocPtr new_doc = xmlCopyDoc(doc, 1), xsd_doc = XDR_to_XSD_doc(doc, nsURI);
891

892 893
    link_datatypes(xsd_doc);

894
    entry->type = CacheEntryType_XDR;
895
    entry->ref = 0;
896 897
    spctx = xmlSchemaNewDocParserCtxt(xsd_doc);

898
    if ((entry->schema = Schema_parse(spctx)))
899 900
    {
        entry->doc = new_doc;
901 902
        xmldoc_init(entry->schema->doc, version);
        xmldoc_init(entry->doc, version);
903 904 905 906 907 908 909 910 911 912 913 914
        xmldoc_add_ref(entry->doc);
        xmldoc_add_ref(entry->schema->doc);
    }
    else
    {
        FIXME("failed to parse doc\n");
        xmlFreeDoc(new_doc);
        xmlFreeDoc(xsd_doc);
        heap_free(entry);
        entry = NULL;
    }
    xmlSchemaFreeParserCtxt(spctx);
915 916 917 918

    return entry;
}

919
static cache_entry* cache_entry_from_url(VARIANT url, xmlChar const* nsURI, MSXML_VERSION version)
920 921 922 923
{
    cache_entry* entry;
    IXMLDOMDocument3* domdoc = NULL;
    xmlDocPtr doc = NULL;
924
    HRESULT hr = dom_document_create(version, (void **)&domdoc);
925
    VARIANT_BOOL b = VARIANT_FALSE;
926
    CacheEntryType type = CacheEntryType_Invalid;
927 928 929 930 931 932 933 934 935 936 937 938

    if (hr != S_OK)
    {
        FIXME("failed to create domdoc\n");
        return NULL;
    }
    assert(domdoc != NULL);
    assert(V_VT(&url) == VT_BSTR);

    hr = IXMLDOMDocument3_load(domdoc, url, &b);
    if (hr != S_OK)
    {
939
        ERR("load() returned %#lx.\n", hr);
940 941
        if (b != VARIANT_TRUE)
        {
942
            FIXME("Failed to load doc at %s\n", debugstr_w(V_BSTR(&url)));
943 944 945 946 947
            IXMLDOMDocument3_Release(domdoc);
            return NULL;
        }
    }
    doc = xmlNodePtr_from_domnode((IXMLDOMNode*)domdoc, XML_DOCUMENT_NODE)->doc;
948
    type = cache_type_from_xmlDocPtr(doc);
949 950 951

    switch (type)
    {
952
        case CacheEntryType_XSD:
953
            entry = cache_entry_from_xsd_doc(doc, nsURI, version);
954
            break;
955
        case CacheEntryType_XDR:
956
            entry = cache_entry_from_xdr_doc(doc, nsURI, version);
957
            break;
958
        default:
959 960 961 962 963 964 965 966 967
            entry = NULL;
            FIXME("invalid schema\n");
            break;
    }
    IXMLDOMDocument3_Release(domdoc);

    return entry;
}

968
static void cache_free(void* data, const xmlChar* name /* ignored */)
969 970 971 972
{
    cache_entry_release((cache_entry*)data);
}

973 974 975 976 977 978 979 980 981 982 983 984 985 986 987 988 989 990 991 992 993 994 995 996 997 998 999 1000 1001 1002 1003 1004 1005 1006 1007 1008 1009 1010 1011 1012 1013 1014 1015 1016 1017 1018 1019 1020 1021
/* returns index or -1 if not found */
static int cache_free_uri(schema_cache *cache, const xmlChar *uri)
{
    int i;

    for (i = 0; i < cache->count; i++)
        if (xmlStrEqual(cache->uris[i], uri))
        {
            heap_free(cache->uris[i]);
            return i;
        }

    return -1;
}

static void cache_add_entry(schema_cache *cache, const xmlChar *uri, cache_entry *entry)
{
    int i;

    /* meaning no entry found with this name */
    if (xmlHashRemoveEntry(cache->cache, uri, cache_free))
    {
        if (cache->count == cache->allocated)
        {
            cache->allocated *= 2;
            cache->uris = heap_realloc(cache->uris, cache->allocated*sizeof(xmlChar*));
        }
        i = cache->count++;
    }
    else
        i = cache_free_uri(cache, uri);

    cache->uris[i] = heap_strdupxmlChar(uri);
    xmlHashAddEntry(cache->cache, uri, entry);
}

static void cache_remove_entry(schema_cache *cache, const xmlChar *uri)
{
    /* adjust index if entry was really removed */
    if (xmlHashRemoveEntry(cache->cache, uri, cache_free) == 0)
    {
        int i = cache_free_uri(cache, uri);
        if (i == -1) return;
        /* shift array */
        if (i != --cache->count)
            memmove(&cache->uris[i], &cache->uris[i+1], (cache->count-i)*sizeof(xmlChar*));
    }
}

1022 1023 1024 1025 1026 1027 1028 1029 1030
/* This one adds all namespaces defined in document to a cache, without anything
   associated with uri obviously.
   Unfortunately namespace:: axis implementation in libxml2 differs from what we need,
   it uses additional node type to describe namespace definition attribute while
   in msxml it's expected to be a normal attribute - as a workaround document is
   queried at libxml2 level here. */
HRESULT cache_from_doc_ns(IXMLDOMSchemaCollection2 *iface, xmlnode *node)
{
    schema_cache* This = impl_from_IXMLDOMSchemaCollection2(iface);
1031
    static const xmlChar query[] = "//*/namespace::*";
1032 1033 1034
    xmlXPathObjectPtr nodeset;
    xmlXPathContextPtr ctxt;

1035 1036
    This->read_only = 1;

1037 1038 1039 1040 1041 1042 1043 1044 1045 1046 1047 1048 1049 1050 1051 1052 1053 1054 1055 1056 1057 1058 1059 1060 1061 1062 1063 1064 1065 1066 1067
    ctxt = xmlXPathNewContext(node->node->doc);

    nodeset = xmlXPathEvalExpression(query, ctxt);
    xmlXPathFreeContext(ctxt);

    if (nodeset)
    {
        int pos = 0, len = xmlXPathNodeSetGetLength(nodeset->nodesetval);

        while (pos < len)
        {
            xmlNodePtr node = xmlXPathNodeSetItem(nodeset->nodesetval, pos);
            if (node->type == XML_NAMESPACE_DECL)
            {
                static const xmlChar defns[] = "http://www.w3.org/XML/1998/namespace";
                xmlNsPtr ns = (xmlNsPtr)node;
                cache_entry *entry;

                /* filter out default uri */
                if (xmlStrEqual(ns->href, defns))
                {
                    pos++;
                    continue;
                }

                entry = heap_alloc(sizeof(cache_entry));
                entry->type = CacheEntryType_NS;
                entry->ref = 1;
                entry->schema = NULL;
                entry->doc = NULL;

1068
                cache_add_entry(This, ns->href, entry);
1069 1070 1071 1072 1073 1074 1075 1076 1077 1078
            }
            pos++;
        }

        xmlXPathFreeObject(nodeset);
    }

    return S_OK;
}

1079 1080
static HRESULT WINAPI schema_cache_QueryInterface(IXMLDOMSchemaCollection2* iface,
                                                  REFIID riid, void** ppvObject)
1081
{
1082
    schema_cache* This = impl_from_IXMLDOMSchemaCollection2(iface);
1083 1084 1085 1086 1087

    TRACE("(%p)->(%s %p)\n", This, debugstr_guid(riid), ppvObject);

    if ( IsEqualIID(riid, &IID_IUnknown) ||
         IsEqualIID(riid, &IID_IDispatch) ||
1088 1089
         IsEqualIID(riid, &IID_IXMLDOMSchemaCollection) ||
         IsEqualIID(riid, &IID_IXMLDOMSchemaCollection2) )
1090 1091 1092
    {
        *ppvObject = iface;
    }
1093 1094 1095 1096 1097 1098 1099 1100 1101 1102 1103 1104
    else if(This->version == MSXML6 && IsEqualIID(riid, &CLSID_XMLSchemaCache60))
    {
        /*
         * Version 6 can be queried for an interface with IID equal to CLSID.
         * There is no public interface with that IID and returned pointer
         * is equal to returned IXMLDOMSchemaCollection2 iface. We assume
         * that it's just another way for querying IXMLDOMSchemaCollection2
         * interface. Office 2013 ClickToRun installer uses this.
         */
        WARN("riid CLSID_XMLSchemaCache60, returning IXMLDOMSchemaCollection2 interface.\n");
        *ppvObject = iface;
    }
1105 1106 1107 1108
    else if (dispex_query_interface(&This->dispex, riid, ppvObject))
    {
        return *ppvObject ? S_OK : E_NOINTERFACE;
    }
1109 1110 1111 1112
    else if(IsEqualGUID( riid, &IID_ISupportErrorInfo ))
    {
        return node_create_supporterrorinfo(schema_cache_se_tids, ppvObject);
    }
1113 1114 1115
    else
    {
        FIXME("interface %s not implemented\n", debugstr_guid(riid));
1116
        *ppvObject = NULL;
1117 1118 1119
        return E_NOINTERFACE;
    }

1120
    IXMLDOMSchemaCollection2_AddRef(iface);
1121 1122 1123 1124

    return S_OK;
}

1125
static ULONG WINAPI schema_cache_AddRef(IXMLDOMSchemaCollection2* iface)
1126
{
1127
    schema_cache* This = impl_from_IXMLDOMSchemaCollection2(iface);
1128
    LONG ref = InterlockedIncrement(&This->ref);
1129
    TRACE("%p, refcount %ld.\n", iface, ref);
1130 1131 1132
    return ref;
}

1133
static ULONG WINAPI schema_cache_Release(IXMLDOMSchemaCollection2* iface)
1134
{
1135
    schema_cache* This = impl_from_IXMLDOMSchemaCollection2(iface);
1136
    LONG ref = InterlockedDecrement(&This->ref);
1137
    TRACE("%p, refcount %ld.\n", iface, ref);
1138

1139
    if (!ref)
1140
    {
1141 1142 1143 1144 1145
        int i;

        for (i = 0; i < This->count; i++)
            heap_free(This->uris[i]);
        heap_free(This->uris);
1146 1147
        xmlHashFree(This->cache, cache_free);
        heap_free(This);
1148 1149 1150 1151 1152
    }

    return ref;
}

1153 1154
static HRESULT WINAPI schema_cache_GetTypeInfoCount(IXMLDOMSchemaCollection2* iface,
                                                    UINT* pctinfo)
1155
{
1156
    schema_cache* This = impl_from_IXMLDOMSchemaCollection2(iface);
1157
    return IDispatchEx_GetTypeInfoCount(&This->dispex.IDispatchEx_iface, pctinfo);
1158 1159
}

1160
static HRESULT WINAPI schema_cache_GetTypeInfo(IXMLDOMSchemaCollection2* iface,
1161
                                               UINT iTInfo, LCID lcid, ITypeInfo** ppTInfo)
1162
{
1163
    schema_cache* This = impl_from_IXMLDOMSchemaCollection2(iface);
1164 1165
    return IDispatchEx_GetTypeInfo(&This->dispex.IDispatchEx_iface,
        iTInfo, lcid, ppTInfo);
1166 1167
}

1168 1169 1170
static HRESULT WINAPI schema_cache_GetIDsOfNames(IXMLDOMSchemaCollection2* iface,
                                                 REFIID riid, LPOLESTR* rgszNames,
                                                 UINT cNames, LCID lcid, DISPID* rgDispId)
1171
{
1172
    schema_cache* This = impl_from_IXMLDOMSchemaCollection2(iface);
1173 1174
    return IDispatchEx_GetIDsOfNames(&This->dispex.IDispatchEx_iface,
        riid, rgszNames, cNames, lcid, rgDispId);
1175 1176
}

1177 1178 1179 1180
static HRESULT WINAPI schema_cache_Invoke(IXMLDOMSchemaCollection2* iface,
                                          DISPID dispIdMember, REFIID riid, LCID lcid,
                                          WORD wFlags, DISPPARAMS* pDispParams,
                                          VARIANT* pVarResult, EXCEPINFO* pExcepInfo,
1181
                                          UINT* puArgErr)
1182
{
1183
    schema_cache* This = impl_from_IXMLDOMSchemaCollection2(iface);
1184 1185
    return IDispatchEx_Invoke(&This->dispex.IDispatchEx_iface,
        dispIdMember, riid, lcid, wFlags, pDispParams, pVarResult, pExcepInfo, puArgErr);
1186 1187
}

1188
static HRESULT WINAPI schema_cache_add(IXMLDOMSchemaCollection2* iface, BSTR uri, VARIANT var)
1189
{
1190
    schema_cache* This = impl_from_IXMLDOMSchemaCollection2(iface);
1191 1192
    xmlChar* name;

1193
    TRACE("(%p)->(%s %s)\n", This, debugstr_w(uri), debugstr_variant(&var));
1194

1195 1196
    if (This->read_only) return E_FAIL;

1197 1198
    name = uri ? xmlchar_from_wchar(uri) : xmlchar_from_wchar(emptyW);

1199 1200 1201 1202
    switch (V_VT(&var))
    {
        case VT_NULL:
            {
1203
                cache_remove_entry(This, name);
1204 1205 1206 1207 1208
            }
            break;

        case VT_BSTR:
            {
1209
                cache_entry* entry = cache_entry_from_url(var, name, This->version);
1210 1211 1212 1213 1214 1215 1216 1217 1218 1219 1220

                if (entry)
                {
                    cache_entry_add_ref(entry);
                }
                else
                {
                    heap_free(name);
                    return E_FAIL;
                }

1221
                cache_add_entry(This, name, entry);
1222 1223 1224 1225
            }
            break;

        case VT_DISPATCH:
1226
        case VT_UNKNOWN:
1227 1228 1229
            {
                xmlDocPtr doc = NULL;
                cache_entry* entry;
1230
                CacheEntryType type;
1231
                IXMLDOMNode* domnode = NULL;
1232
                IUnknown_QueryInterface(V_UNKNOWN(&var), &IID_IXMLDOMNode, (void**)&domnode);
1233 1234

                if (domnode)
1235 1236 1237 1238 1239 1240 1241 1242 1243 1244 1245 1246 1247
                {
                    DOMNodeType type;

                    IXMLDOMNode_get_nodeType(domnode, &type);
                    switch (type)
                    {
                    case NODE_ELEMENT:
                    {
                        IXMLDOMDocument *domdoc;
                        VARIANT_BOOL b;
                        BSTR xml;

                        IXMLDOMNode_get_xml(domnode, &xml);
1248
                        dom_document_create(This->version, (void **)&domdoc);
1249 1250 1251 1252 1253 1254 1255 1256 1257 1258
                        IXMLDOMDocument_loadXML(domdoc, xml, &b);
                        SysFreeString(xml);
                        doc = xmlNodePtr_from_domnode((IXMLDOMNode*)domdoc, XML_DOCUMENT_NODE)->doc;
                        break;
                    }
                    default:
                        doc = xmlNodePtr_from_domnode(domnode, XML_DOCUMENT_NODE)->doc;
                        break;
                    }
                }
1259 1260 1261 1262 1263 1264 1265

                if (!doc)
                {
                    IXMLDOMNode_Release(domnode);
                    heap_free(name);
                    return E_INVALIDARG;
                }
1266
                type = cache_type_from_xmlDocPtr(doc);
1267

1268
                if (type == CacheEntryType_XSD)
1269
                {
1270
                    entry = cache_entry_from_xsd_doc(doc, name, This->version);
1271
                }
1272
                else if (type == CacheEntryType_XDR)
1273
                {
1274
                    entry = cache_entry_from_xdr_doc(doc, name, This->version);
1275 1276 1277 1278 1279 1280 1281 1282 1283 1284 1285 1286 1287 1288 1289 1290 1291 1292 1293
                }
                else
                {
                    WARN("invalid schema!\n");
                    entry = NULL;
                }

                IXMLDOMNode_Release(domnode);

                if (entry)
                {
                    cache_entry_add_ref(entry);
                }
                else
                {
                    heap_free(name);
                    return E_FAIL;
                }

1294
                cache_add_entry(This, name, entry);
1295 1296 1297 1298
            }
            break;

        default:
1299 1300 1301
            FIXME("arg type is not supported, %s\n", debugstr_variant(&var));
            heap_free(name);
            return E_INVALIDARG;
1302 1303
    }
    heap_free(name);
1304 1305 1306
    return S_OK;
}

1307 1308
static HRESULT WINAPI schema_cache_get(IXMLDOMSchemaCollection2* iface, BSTR uri,
                                       IXMLDOMNode** node)
1309
{
1310
    schema_cache* This = impl_from_IXMLDOMSchemaCollection2(iface);
1311
    cache_entry* entry;
1312 1313
    xmlChar* name;

1314
    TRACE("(%p)->(%s %p)\n", This, debugstr_w(uri), node);
1315

1316 1317 1318 1319 1320
    if (This->version == MSXML6)
    {
        if (node) *node = NULL;
        return E_NOTIMPL;
    }
1321

1322 1323 1324
    if (!node)
        return E_POINTER;

1325 1326
    *node = NULL;

1327
    name = uri ? xmlchar_from_wchar(uri) : xmlchar_from_wchar(emptyW);
1328 1329 1330 1331
    entry = (cache_entry*) xmlHashLookup(This->cache, name);
    heap_free(name);

    /* TODO: this should be read-only */
1332
    if (entry && entry->doc)
1333
        return get_domdoc_from_xmldoc(entry->doc, (IXMLDOMDocument3**)node);
1334 1335

    return S_OK;
1336 1337
}

1338
static HRESULT WINAPI schema_cache_remove(IXMLDOMSchemaCollection2* iface, BSTR uri)
1339
{
1340
    schema_cache* This = impl_from_IXMLDOMSchemaCollection2(iface);
1341 1342
    xmlChar* name;

1343
    TRACE("(%p)->(%s)\n", This, debugstr_w(uri));
1344

1345 1346
    if (This->version == MSXML6) return E_NOTIMPL;

1347
    name = uri ? xmlchar_from_wchar(uri) : xmlchar_from_wchar(emptyW);
1348
    cache_remove_entry(This, name);
1349 1350
    heap_free(name);
    return S_OK;
1351 1352
}

1353
static HRESULT WINAPI schema_cache_get_length(IXMLDOMSchemaCollection2* iface, LONG* length)
1354
{
1355
    schema_cache* This = impl_from_IXMLDOMSchemaCollection2(iface);
1356 1357 1358 1359
    TRACE("(%p)->(%p)\n", This, length);

    if (!length)
        return E_POINTER;
1360

1361 1362
    *length = This->count;
    return S_OK;
1363 1364
}

1365
static HRESULT WINAPI schema_cache_get_namespaceURI(IXMLDOMSchemaCollection2* iface,
1366
                                                    LONG index, BSTR* uri)
1367
{
1368
    schema_cache* This = impl_from_IXMLDOMSchemaCollection2(iface);
1369

1370
    TRACE("%p, %ld, %p.\n", iface, index, uri);
1371 1372

    if (!uri)
1373 1374
        return E_POINTER;

1375 1376 1377
    if (This->version == MSXML6)
        *uri = NULL;

1378
    if (index >= This->count)
1379 1380
        return E_FAIL;

1381
    *uri = bstr_from_xmlChar(This->uris[index]);
1382
    return S_OK;
1383 1384
}

1385
static void cache_copy(void* data, void* dest, const xmlChar* name)
1386 1387 1388 1389 1390 1391 1392
{
    schema_cache* This = (schema_cache*) dest;
    cache_entry* entry = (cache_entry*) data;

    if (xmlHashLookup(This->cache, name) == NULL)
    {
        cache_entry_add_ref(entry);
1393
        cache_add_entry(This, name, entry);
1394 1395 1396
    }
}

1397
static HRESULT WINAPI schema_cache_addCollection(IXMLDOMSchemaCollection2* iface,
1398
                                                 IXMLDOMSchemaCollection* collection)
1399
{
1400
    schema_cache* This = impl_from_IXMLDOMSchemaCollection2(iface);
1401 1402 1403
    schema_cache* That;

    TRACE("(%p)->(%p)\n", This, collection);
1404

1405
    if (!collection)
1406 1407
        return E_POINTER;

1408 1409 1410 1411 1412 1413 1414
    That = unsafe_impl_from_IXMLDOMSchemaCollection(collection);
    if (!That)
    {
        ERR("external collection implementation\n");
        return E_FAIL;
    }

1415 1416 1417 1418
    /* TODO: detect errors while copying & return E_FAIL */
    xmlHashScan(That->cache, cache_copy, This);

    return S_OK;
1419 1420
}

1421
static HRESULT WINAPI schema_cache_get__newEnum(IXMLDOMSchemaCollection2* iface, IUnknown** enumv)
1422
{
1423
    schema_cache* This = impl_from_IXMLDOMSchemaCollection2(iface);
1424 1425
    TRACE("(%p)->(%p)\n", This, enumv);
    return create_enumvariant((IUnknown*)iface, TRUE, &schemacache_enumvariant, (IEnumVARIANT**)enumv);
1426 1427
}

1428 1429
static HRESULT WINAPI schema_cache_validate(IXMLDOMSchemaCollection2* iface)
{
1430 1431
    schema_cache* This = impl_from_IXMLDOMSchemaCollection2(iface);
    FIXME("(%p): stub\n", This);
1432 1433 1434 1435
    return E_NOTIMPL;
}

static HRESULT WINAPI schema_cache_put_validateOnLoad(IXMLDOMSchemaCollection2* iface,
1436
                                                      VARIANT_BOOL value)
1437
{
1438 1439
    schema_cache* This = impl_from_IXMLDOMSchemaCollection2(iface);
    FIXME("(%p)->(%d): stub\n", This, value);
1440 1441 1442 1443 1444

    This->validateOnLoad = value;
    /* it's ok to disable it, cause we don't validate on load anyway */
    if (value == VARIANT_FALSE) return S_OK;

1445 1446 1447 1448
    return E_NOTIMPL;
}

static HRESULT WINAPI schema_cache_get_validateOnLoad(IXMLDOMSchemaCollection2* iface,
1449
                                                      VARIANT_BOOL* value)
1450
{
1451
    schema_cache* This = impl_from_IXMLDOMSchemaCollection2(iface);
1452 1453 1454 1455 1456 1457
    TRACE("(%p)->(%p)\n", This, value);

    if (!value) return E_POINTER;
    *value = This->validateOnLoad;

    return S_OK;
1458 1459 1460 1461 1462
}

static HRESULT WINAPI schema_cache_getSchema(IXMLDOMSchemaCollection2* iface,
                                             BSTR namespaceURI, ISchema** schema)
{
1463 1464
    schema_cache* This = impl_from_IXMLDOMSchemaCollection2(iface);
    FIXME("(%p)->(%s %p): stub\n", This, debugstr_w(namespaceURI), schema);
1465 1466 1467 1468 1469 1470 1471 1472
    if (schema)
        *schema = NULL;
    return E_NOTIMPL;
}

static HRESULT WINAPI schema_cache_getDeclaration(IXMLDOMSchemaCollection2* iface,
                                                  IXMLDOMNode* node, ISchemaItem** item)
{
1473 1474
    schema_cache* This = impl_from_IXMLDOMSchemaCollection2(iface);
    FIXME("(%p)->(%p %p): stub\n", This, node, item);
1475 1476 1477 1478 1479
    if (item)
        *item = NULL;
    return E_NOTIMPL;
}

1480
static const struct IXMLDOMSchemaCollection2Vtbl XMLDOMSchemaCollection2Vtbl =
1481 1482 1483 1484 1485 1486 1487 1488 1489 1490 1491 1492 1493 1494
{
    schema_cache_QueryInterface,
    schema_cache_AddRef,
    schema_cache_Release,
    schema_cache_GetTypeInfoCount,
    schema_cache_GetTypeInfo,
    schema_cache_GetIDsOfNames,
    schema_cache_Invoke,
    schema_cache_add,
    schema_cache_get,
    schema_cache_remove,
    schema_cache_get_length,
    schema_cache_get_namespaceURI,
    schema_cache_addCollection,
1495 1496 1497 1498 1499 1500
    schema_cache_get__newEnum,
    schema_cache_validate,
    schema_cache_put_validateOnLoad,
    schema_cache_get_validateOnLoad,
    schema_cache_getSchema,
    schema_cache_getDeclaration
1501 1502
};

1503 1504 1505 1506 1507 1508 1509 1510 1511 1512 1513 1514 1515 1516 1517 1518 1519 1520 1521 1522 1523 1524 1525 1526 1527 1528 1529 1530 1531 1532 1533 1534 1535 1536
static xmlSchemaElementPtr lookup_schema_elemDecl(xmlSchemaPtr schema, xmlNodePtr node)
{
    xmlSchemaElementPtr decl = NULL;
    xmlChar const* nsURI = get_node_nsURI(node);

    TRACE("(%p, %p)\n", schema, node);

    if (xmlStrEqual(nsURI, schema->targetNamespace))
        decl = xmlHashLookup(schema->elemDecl, node->name);

    if (!decl && xmlHashSize(schema->schemasImports) > 1)
    {
        FIXME("declaration not found in main schema - need to check schema imports!\n");
        /*xmlSchemaImportPtr import;
        if (nsURI == NULL)
            import = xmlHashLookup(schema->schemasImports, XML_SCHEMAS_NO_NAMESPACE);
        else
            import = xmlHashLookup(schema->schemasImports, node->ns->href);

        if (import != NULL)
            decl = xmlHashLookup(import->schema->elemDecl, node->name);*/
    }

    return decl;
}

static inline xmlNodePtr lookup_schema_element(xmlSchemaPtr schema, xmlNodePtr node)
{
    xmlSchemaElementPtr decl = lookup_schema_elemDecl(schema, node);
    while (decl != NULL && decl->refDecl != NULL)
        decl = decl->refDecl;
    return (decl != NULL)? decl->node : NULL;
}

1537 1538 1539
HRESULT SchemaCache_validate_tree(IXMLDOMSchemaCollection2* iface, xmlNodePtr tree)
{
    schema_cache* This = impl_from_IXMLDOMSchemaCollection2(iface);
1540 1541
    xmlSchemaPtr schema;

1542 1543 1544 1545 1546
    TRACE("(%p, %p)\n", This, tree);

    if (!tree)
        return E_POINTER;

1547 1548
    if (tree->type == XML_DOCUMENT_NODE)
        tree = xmlDocGetRootElement(tree->doc);
1549

1550
    schema = get_node_schema(This, tree);
1551 1552
    /* TODO: if the ns is not in the cache, and it's a URL,
     *       do we try to load from that? */
1553
    if (schema)
1554
        return Schema_validate_tree(schema, tree);
1555 1556
    else
        WARN("no schema found for xmlns=%s\n", get_node_nsURI(tree));
1557 1558 1559 1560

    return E_FAIL;
}

1561 1562 1563 1564 1565 1566 1567 1568 1569 1570
XDR_DT SchemaCache_get_node_dt(IXMLDOMSchemaCollection2* iface, xmlNodePtr node)
{
    schema_cache* This = impl_from_IXMLDOMSchemaCollection2(iface);
    xmlSchemaPtr schema = get_node_schema(This, node);
    XDR_DT dt = DT_INVALID;

    TRACE("(%p, %p)\n", This, node);

    if (node->ns && xmlStrEqual(node->ns->href, DT_nsURI))
    {
1571
        dt = str_to_dt(node->name, -1);
1572 1573 1574 1575 1576 1577 1578 1579 1580
    }
    else if (schema)
    {
        xmlChar* str;
        xmlNodePtr schema_node = lookup_schema_element(schema, node);

        str = xmlGetNsProp(schema_node, BAD_CAST "dt", DT_nsURI);
        if (str)
        {
1581
            dt = str_to_dt(str, -1);
1582 1583 1584 1585 1586 1587 1588
            xmlFree(str);
        }
    }

    return dt;
}

1589 1590 1591 1592 1593 1594 1595 1596 1597 1598 1599 1600
static const tid_t schemacache_iface_tids[] = {
    IXMLDOMSchemaCollection2_tid,
    0
};

static dispex_static_data_t schemacache_dispex = {
    NULL,
    IXMLDOMSchemaCollection2_tid,
    NULL,
    schemacache_iface_tids
};

1601
HRESULT SchemaCache_create(MSXML_VERSION version, void** obj)
1602
{
1603 1604
    schema_cache* This = heap_alloc(sizeof(schema_cache));
    if (!This)
1605 1606
        return E_OUTOFMEMORY;

1607
    TRACE("(%d %p)\n", version, obj);
1608

1609
    This->IXMLDOMSchemaCollection2_iface.lpVtbl = &XMLDOMSchemaCollection2Vtbl;
1610
    This->cache = xmlHashCreate(DEFAULT_HASHTABLE_SIZE);
1611 1612 1613
    This->allocated = 10;
    This->count = 0;
    This->uris = heap_alloc(This->allocated*sizeof(xmlChar*));
1614
    This->ref = 1;
1615
    This->version = version;
1616
    This->validateOnLoad = VARIANT_TRUE;
1617
    This->read_only = 0;
1618
    init_dispex(&This->dispex, (IUnknown*)&This->IXMLDOMSchemaCollection2_iface, &schemacache_dispex);
1619

1620
    *obj = &This->IXMLDOMSchemaCollection2_iface;
1621 1622
    return S_OK;
}