text: /*
   * propsys main
   *
   * Copyright 1997, 2002 Alexandre Julliard
   * Copyright 2008 James Hawkins
   *
   * 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 "objbase.h"
  #include "rpcproxy.h"
  #include "propsys.h"
  #include "wine/debug.h"
  
  #include "propsys_private.h"
  
  WINE_DEFAULT_DEBUG_CHANNEL(propsys);
  
  static HRESULT WINAPI ClassFactory_QueryInterface(IClassFactory *iface, REFIID riid, void **ppv)
  {
      *ppv = NULL;
  
      if(IsEqualGUID(&IID_IUnknown, riid)) {
          TRACE("(%p)->(IID_IUnknown %p)\n", iface, ppv);
          *ppv = iface;
      }else if(IsEqualGUID(&IID_IClassFactory, riid)) {
          TRACE("(%p)->(IID_IClassFactory %p)\n", iface, ppv);
          *ppv = iface;
      }
  
      if(*ppv) {
          IUnknown_AddRef((IUnknown*)*ppv);
          return S_OK;
      }
  
      FIXME("(%p)->(%s %p)\n", iface, debugstr_guid(riid), ppv);
      return E_NOINTERFACE;
  }
  
  static ULONG WINAPI ClassFactory_AddRef(IClassFactory *iface)
  {
      TRACE("(%p)\n", iface);
      return 2;
  }
  
  static ULONG WINAPI ClassFactory_Release(IClassFactory *iface)
  {
      TRACE("(%p)\n", iface);
      return 1;
  }
  
  static HRESULT WINAPI ClassFactory_LockServer(IClassFactory *iface, BOOL fLock)
  {
      TRACE("(%p)->(%x)\n", iface, fLock);
  
      return S_OK;
  }
  
  static HRESULT WINAPI InMemoryPropertyStoreFactory_CreateInstance(IClassFactory *iface, IUnknown *outer,
          REFIID riid, void **ppv)
  {
      TRACE("(%p %s %p)\n", outer, debugstr_guid(riid), ppv);
  
      return PropertyStore_CreateInstance(outer, riid, ppv);
  }
  
  static const IClassFactoryVtbl InMemoryPropertyStoreFactoryVtbl = {
      ClassFactory_QueryInterface,
      ClassFactory_AddRef,
      ClassFactory_Release,
      InMemoryPropertyStoreFactory_CreateInstance,
      ClassFactory_LockServer
  };
  
  static IClassFactory InMemoryPropertyStoreFactory = { &InMemoryPropertyStoreFactoryVtbl };
  
  HRESULT WINAPI DllGetClassObject(REFCLSID rclsid, REFIID riid, LPVOID *ppv)
  {
      if(IsEqualGUID(&CLSID_InMemoryPropertyStore, rclsid)) {
          TRACE("(CLSID_InMemoryPropertyStore %s %p)\n", debugstr_guid(riid), ppv);
          return IClassFactory_QueryInterface(&InMemoryPropertyStoreFactory, riid, ppv);
      }
  
      FIXME("%s %s %p\n", debugstr_guid(rclsid), debugstr_guid(riid), ppv);
      return CLASS_E_CLASSNOTAVAILABLE;
  }
  
  static HRESULT WINAPI propsys_QueryInterface(IPropertySystem *iface, REFIID riid, void **obj)
  {
      *obj = NULL;
  
      if (IsEqualIID(riid, &IID_IPropertySystem) || IsEqualIID(riid, &IID_IUnknown)) {
          *obj = iface;
          IPropertySystem_AddRef(iface);
          return S_OK;
      }
  
      FIXME("%s\n", debugstr_guid(riid));
      return E_NOINTERFACE;
  }
  
  static ULONG WINAPI propsys_AddRef(IPropertySystem *iface)
  {
      return 2;
  }
  
  static ULONG WINAPI propsys_Release(IPropertySystem *iface)
  {
      return 1;
  }
  
  static HRESULT WINAPI propsys_GetPropertyDescription(IPropertySystem *iface,
      REFPROPERTYKEY propkey, REFIID riid, void **ppv)
  {
      return PSGetPropertyDescription(propkey, riid, ppv);
  }
  
  static HRESULT WINAPI propsys_GetPropertyDescriptionByName(IPropertySystem *iface,
      LPCWSTR canonical_name, REFIID riid, void **ppv)
  {
      FIXME("%s %s %p: stub\n", debugstr_w(canonical_name), debugstr_guid(riid), ppv);
      return E_NOTIMPL;
  }
  
  static HRESULT WINAPI propsys_GetPropertyDescriptionListFromString(IPropertySystem *iface,
      LPCWSTR proplist, REFIID riid, void **ppv)
  {
      return PSGetPropertyDescriptionListFromString(proplist, riid, ppv);
  }
  
  static HRESULT WINAPI propsys_EnumeratePropertyDescriptions(IPropertySystem *iface,
      PROPDESC_ENUMFILTER filter, REFIID riid, void **ppv)
  {
      FIXME("%d %s %p: stub\n", filter, debugstr_guid(riid), ppv);
      return E_NOTIMPL;
  }
  
  static HRESULT WINAPI propsys_FormatForDisplay(IPropertySystem *iface,
      REFPROPERTYKEY key, REFPROPVARIANT propvar, PROPDESC_FORMAT_FLAGS flags,
      LPWSTR dest, DWORD destlen)
  {
      FIXME("%p %p %x %p %d: stub\n", key, propvar, flags, dest, destlen);
      return E_NOTIMPL;
  }
  
  static HRESULT WINAPI propsys_FormatForDisplayAlloc(IPropertySystem *iface,
      REFPROPERTYKEY key, REFPROPVARIANT propvar, PROPDESC_FORMAT_FLAGS flags,
      LPWSTR *text)
  {
      FIXME("%p %p %x %p: stub\n", key, propvar, flags, text);
      return E_NOTIMPL;
  }
  
  static HRESULT WINAPI propsys_RegisterPropertySchema(IPropertySystem *iface, LPCWSTR path)
  {
      return PSRegisterPropertySchema(path);
  }
  
  static HRESULT WINAPI propsys_UnregisterPropertySchema(IPropertySystem *iface, LPCWSTR path)
  {
      return PSUnregisterPropertySchema(path);
  }
  
  static HRESULT WINAPI propsys_RefreshPropertySchema(IPropertySystem *iface)
  {
      return PSRefreshPropertySchema();
  }
  
  static const IPropertySystemVtbl propsysvtbl = {
      propsys_QueryInterface,
      propsys_AddRef,
      propsys_Release,
      propsys_GetPropertyDescription,
      propsys_GetPropertyDescriptionByName,
      propsys_GetPropertyDescriptionListFromString,
      propsys_EnumeratePropertyDescriptions,
      propsys_FormatForDisplay,
      propsys_FormatForDisplayAlloc,
      propsys_RegisterPropertySchema,
      propsys_UnregisterPropertySchema,
      propsys_RefreshPropertySchema
  };
  
  static IPropertySystem propsys = { &propsysvtbl };
  
  HRESULT WINAPI PSGetPropertySystem(REFIID riid, void **obj)
  {
      return IPropertySystem_QueryInterface(&propsys, riid, obj);
  }
  
  HRESULT WINAPI PSRegisterPropertySchema(PCWSTR path)
  {
      FIXME("%s stub\n", debugstr_w(path));
  
      return S_OK;
  }
  
  HRESULT WINAPI PSUnregisterPropertySchema(PCWSTR path)
  {
      FIXME("%s stub\n", debugstr_w(path));
  
      return E_NOTIMPL;
  }
  
  HRESULT WINAPI PSGetPropertyDescription(REFPROPERTYKEY propkey, REFIID riid, void **ppv)
  {
      FIXME("%p, %p, %p\n", propkey, riid, ppv);
      return E_NOTIMPL;
  }
  
  HRESULT WINAPI PSGetPropertyDescriptionListFromString(LPCWSTR proplist, REFIID riid, void **ppv)
  {
      FIXME("%s, %p, %p\n", debugstr_w(proplist), riid, ppv);
      return E_NOTIMPL;
  }
  
  HRESULT WINAPI PSGetPropertyKeyFromName(PCWSTR name, PROPERTYKEY *key)
  {
      FIXME("%s, %p\n", debugstr_w(name), key);
      return E_NOTIMPL;
  }
  
  HRESULT WINAPI PSRefreshPropertySchema(void)
  {
      FIXME("\n");
      return S_OK;
  }
  
  HRESULT WINAPI PSStringFromPropertyKey(REFPROPERTYKEY pkey, LPWSTR psz, UINT cch)
  {
      WCHAR pidW[PKEY_PIDSTR_MAX + 1];
      LPWSTR p = psz;
      int len;
  
      TRACE("(%p, %p, %u)\n", pkey, psz, cch);
  
      if (!psz)
          return E_POINTER;
  
      /* GUIDSTRING_MAX accounts for null terminator, +1 for space character. */
      if (cch <= GUIDSTRING_MAX + 1)
          return E_NOT_SUFFICIENT_BUFFER;
  
      if (!pkey)
      {
          psz[0] = '\0';
          return E_NOT_SUFFICIENT_BUFFER;
      }
  
      swprintf(psz, cch, L"{%08X-%04X-%04X-%02X%02X-%02X%02X%02X%02X%02X%02X}", pkey->fmtid.Data1,
               pkey->fmtid.Data2, pkey->fmtid.Data3, pkey->fmtid.Data4[0], pkey->fmtid.Data4[1],
               pkey->fmtid.Data4[2], pkey->fmtid.Data4[3], pkey->fmtid.Data4[4],
               pkey->fmtid.Data4[5], pkey->fmtid.Data4[6], pkey->fmtid.Data4[7]);
  
      /* Overwrite the null terminator with the space character. */
      p += GUIDSTRING_MAX - 1;
      *p++ = ' ';
      cch -= GUIDSTRING_MAX - 1 + 1;
  
      len = swprintf(pidW, ARRAY_SIZE(pidW), L"%u", pkey->pid);
  
      if (cch >= len + 1)
      {
          lstrcpyW(p, pidW);
          return S_OK;
      }
      else
      {
          WCHAR *ptr = pidW + len - 1;
  
          psz[0] = '\0';
          *p++ = '\0';
          cch--;
  
          /* Replicate a quirk of the native implementation where the contents
           * of the property ID string are written backwards to the output
           * buffer, skipping the rightmost digit. */
          if (cch)
          {
              ptr--;
              while (cch--)
                  *p++ = *ptr--;
          }
  
          return E_NOT_SUFFICIENT_BUFFER;
      }
  }
  
  static const BYTE hex2bin[] =
  {
      0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,        /* 0x00 */
      0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,        /* 0x10 */
      0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,        /* 0x20 */
      0,1,2,3,4,5,6,7,8,9,0,0,0,0,0,0,        /* 0x30 */
      0,10,11,12,13,14,15,0,0,0,0,0,0,0,0,0,  /* 0x40 */
      0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,        /* 0x50 */
      0,10,11,12,13,14,15                     /* 0x60 */
  };
  
  static BOOL validate_indices(LPCWSTR s, int min, int max)
  {
      int i;
  
      for (i = min; i <= max; i++)
      {
          if (!s[i])
              return FALSE;
  
          if (i == 0)
          {
              if (s[i] != '{')
                  return FALSE;
          }
          else if (i == 9 || i == 14 || i == 19 || i == 24)
          {
              if (s[i] != '-')
                  return FALSE;
          }
          else if (i == 37)
          {
              if (s[i] != '}')
                  return FALSE;
          }
          else
          {
              if (s[i] > 'f' || (!hex2bin[s[i]] && s[i] != '0'))
                  return FALSE;
          }
      }
  
      return TRUE;
  }
  
  /* Adapted from CLSIDFromString helper in dlls/ole32/compobj.c and
   * UuidFromString in dlls/rpcrt4/rpcrt4_main.c. */
  static BOOL string_to_guid(LPCWSTR s, LPGUID id)
  {
      /* in form {XXXXXXXX-XXXX-XXXX-XXXX-XXXXXXXXXXXX} */
  
      if (!validate_indices(s, 0, 8)) return FALSE;
      id->Data1 = (hex2bin[s[1]] << 28 | hex2bin[s[2]] << 24 | hex2bin[s[3]] << 20 | hex2bin[s[4]] << 16 |
                   hex2bin[s[5]] << 12 | hex2bin[s[6]] << 8  | hex2bin[s[7]] << 4  | hex2bin[s[8]]);
      if (!validate_indices(s, 9, 14)) return FALSE;
      id->Data2 = hex2bin[s[10]] << 12 | hex2bin[s[11]] << 8 | hex2bin[s[12]] << 4 | hex2bin[s[13]];
      if (!validate_indices(s, 15, 19)) return FALSE;
      id->Data3 = hex2bin[s[15]] << 12 | hex2bin[s[16]] << 8 | hex2bin[s[17]] << 4 | hex2bin[s[18]];
  
      /* these are just sequential bytes */
  
      if (!validate_indices(s, 20, 21)) return FALSE;
      id->Data4[0] = hex2bin[s[20]] << 4 | hex2bin[s[21]];
      if (!validate_indices(s, 22, 24)) return FALSE;
      id->Data4[1] = hex2bin[s[22]] << 4 | hex2bin[s[23]];
  
      if (!validate_indices(s, 25, 26)) return FALSE;
      id->Data4[2] = hex2bin[s[25]] << 4 | hex2bin[s[26]];
      if (!validate_indices(s, 27, 28)) return FALSE;
      id->Data4[3] = hex2bin[s[27]] << 4 | hex2bin[s[28]];
      if (!validate_indices(s, 29, 30)) return FALSE;
      id->Data4[4] = hex2bin[s[29]] << 4 | hex2bin[s[30]];
      if (!validate_indices(s, 31, 32)) return FALSE;
      id->Data4[5] = hex2bin[s[31]] << 4 | hex2bin[s[32]];
      if (!validate_indices(s, 33, 34)) return FALSE;
      id->Data4[6] = hex2bin[s[33]] << 4 | hex2bin[s[34]];
      if (!validate_indices(s, 35, 37)) return FALSE;
      id->Data4[7] = hex2bin[s[35]] << 4 | hex2bin[s[36]];
  
      return TRUE;
  }
  
  HRESULT WINAPI PSPropertyKeyFromString(LPCWSTR pszString, PROPERTYKEY *pkey)
  {
      BOOL has_minus = FALSE, has_comma = FALSE;
  
      TRACE("(%s, %p)\n", debugstr_w(pszString), pkey);
  
      if (!pszString || !pkey)
          return E_POINTER;
  
      memset(pkey, 0, sizeof(PROPERTYKEY));
  
      if (!string_to_guid(pszString, &pkey->fmtid))
          return E_INVALIDARG;
  
      pszString += GUIDSTRING_MAX - 1;
  
      if (!*pszString)
          return E_INVALIDARG;
  
      /* Only the space seems to be recognized as whitespace. The comma is only
       * recognized once and processing terminates if another comma is found. */
      while (*pszString == ' ' || *pszString == ',')
      {
          if (*pszString == ',')
          {
              if (has_comma)
                  return S_OK;
              else
                  has_comma = TRUE;
          }
          pszString++;
      }
  
      if (!*pszString)
          return E_INVALIDARG;
  
      /* Only two minus signs are recognized if no comma is detected. The first
       * sign is ignored, and the second is interpreted. If a comma is detected
       * before the minus sign, then only one minus sign counts, and property ID
       * interpretation begins with the next character. */
      if (has_comma)
      {
          if (*pszString == '-')
          {
              has_minus = TRUE;
              pszString++;
          }
      }
      else
      {
          if (*pszString == '-')
              pszString++;
  
          /* Skip any intermediate spaces after the first minus sign. */
          while (*pszString == ' ')
              pszString++;
  
          if (*pszString == '-')
          {
              has_minus = TRUE;
              pszString++;
          }
  
          /* Skip any remaining spaces after minus sign. */
          while (*pszString == ' ')
              pszString++;
      }
  
      /* Overflow is not checked. */
      while ('0' <= *pszString && *pszString <= '9')
      {
          pkey->pid *= 10;
          pkey->pid += (*pszString - '0');
          pszString++;
      }
  
      if (has_minus)
          pkey->pid = ~pkey->pid + 1;
  
      return S_OK;
  }
  
  HRESULT WINAPI PSCreateMemoryPropertyStore(REFIID riid, void **ppv)
  {
      TRACE("(%s, %p)\n", debugstr_guid(riid), ppv);
  
      return PropertyStore_CreateInstance(NULL, riid, ppv);
  }
  