535 lines
18 KiB
C++
535 lines
18 KiB
C++
//+-------------------------------------------------------------------------
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//
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// Microsoft Windows
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//
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// Copyright (C) Microsoft Corporation, 1997 - 1999
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//
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// File: config.cpp
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//
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//--------------------------------------------------------------------------
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#include "pch.h"
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#pragma hdrstop
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#include <shlwapi.h>
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#include "config.h"
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#include "util.h"
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#include "strings.h"
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//
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// Determine if a character is a DBCS lead byte.
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// If build is UNICODE, always returns false.
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//
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inline bool DBCSLEADBYTE(TCHAR ch)
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{
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if (sizeof(ch) == sizeof(char))
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return boolify(IsDBCSLeadByte((BYTE)ch));
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return false;
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}
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LPCTSTR CConfig::s_rgpszSubkeys[] = { REGSTR_KEY_OFFLINEFILES,
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REGSTR_KEY_OFFLINEFILESPOLICY };
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LPCTSTR CConfig::s_rgpszValues[] = { REGSTR_VAL_DEFCACHESIZE,
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REGSTR_VAL_CSCENABLED,
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REGSTR_VAL_GOOFFLINEACTION,
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REGSTR_VAL_NOCONFIGCACHE,
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REGSTR_VAL_NOCACHEVIEWER,
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REGSTR_VAL_NOMAKEAVAILABLEOFFLINE,
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REGSTR_VAL_SYNCATLOGOFF,
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REGSTR_VAL_SYNCATLOGON,
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REGSTR_VAL_SYNCATSUSPEND,
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REGSTR_VAL_NOREMINDERS,
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REGSTR_VAL_REMINDERFREQMINUTES,
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REGSTR_VAL_INITIALBALLOONTIMEOUTSECONDS,
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REGSTR_VAL_REMINDERBALLOONTIMEOUTSECONDS,
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REGSTR_VAL_EVENTLOGGINGLEVEL,
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REGSTR_VAL_PURGEATLOGOFF,
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REGSTR_VAL_PURGEONLYAUTOCACHEATLOGOFF,
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REGSTR_VAL_FIRSTPINWIZARDSHOWN,
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REGSTR_VAL_SLOWLINKSPEED,
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REGSTR_VAL_ALWAYSPINSUBFOLDERS,
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REGSTR_VAL_ENCRYPTCACHE,
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REGSTR_VAL_NOFRADMINPIN
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};
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//
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// Returns the single instance of the CConfig class.
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// Note that by making the singleton instance a function static
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// object it is not created until the first call to GetSingleton.
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//
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CConfig& CConfig::GetSingleton(
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void
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)
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{
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static CConfig TheConfig;
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return TheConfig;
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}
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//
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// This is the workhorse of the CSCUI policy code for scalar values.
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// The caller passes in a value (iVAL_XXXXXX) identifier from the eValues
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// enumeration to identify the policy/preference value of interest.
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// Known keys in the registry are scanned until a value is found.
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// The scanning order enforces the precedence of policy vs. default vs.
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// preference and machine vs. user.
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//
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DWORD CConfig::GetValue(
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eValues iValue,
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bool *pbSetByPolicy
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) const
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{
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//
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// This table identifies each DWORD policy/preference item used by CSCUI.
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// The entries MUST be ordered the same as the eValues enumeration.
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// Each entry describes the possible sources for data and a default value
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// to be used if no registry entries are present or if there's a problem reading
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// the registry.
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//
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static const struct Item
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{
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DWORD fSrc; // Mask indicating the reg locations to read.
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DWORD dwDefault; // Hard-coded default.
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} rgItems[] = {
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// Value ID eSRC_PREF_CU | eSRC_PREF_LM | eSRC_POL_CU | eSRC_POL_LM Default value
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// -------------------------------------- ------------ ------------ ----------- ----------- -------------------
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/* iVAL_DEFCACHESIZE */ { eSRC_POL_LM, 1000 },
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/* iVAL_CSCENABLED */ { eSRC_POL_LM, 1 },
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/* iVAL_GOOFFLINEACTION */ { eSRC_PREF_CU | eSRC_POL_CU | eSRC_POL_LM, eGoOfflineSilent },
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/* iVAL_NOCONFIGCACHE */ { eSRC_POL_CU | eSRC_POL_LM, 0 },
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/* iVAL_NOCACHEVIEWER */ { eSRC_POL_CU | eSRC_POL_LM, 0 },
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/* iVAL_NOMAKEAVAILABLEOFFLINE */ { eSRC_POL_CU | eSRC_POL_LM, 0 },
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/* iVAL_SYNCATLOGOFF */ { eSRC_PREF_CU | eSRC_POL_CU | eSRC_POL_LM, eSyncFull },
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/* iVAL_SYNCATLOGON */ { eSRC_PREF_CU | eSRC_POL_CU | eSRC_POL_LM, eSyncNone },
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/* iVAL_SYNCATSUSPEND */ { eSRC_POL_CU | eSRC_POL_LM, eSyncNone },
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/* iVAL_NOREMINDERS */ { eSRC_PREF_CU | eSRC_POL_CU | eSRC_POL_LM, 0 },
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/* iVAL_REMINDERFREQMINUTES */ { eSRC_PREF_CU | eSRC_POL_CU | eSRC_POL_LM, 60 },
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/* iVAL_INITIALBALLOONTIMEOUTSECONDS */ { eSRC_POL_CU | eSRC_POL_LM, 30 },
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/* iVAL_REMINDERBALLOONTIMEOUTSECONDS */ { eSRC_POL_CU | eSRC_POL_LM, 15 },
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/* iVAL_EVENTLOGGINGLEVEL */ { eSRC_PREF_CU | eSRC_PREF_LM | eSRC_POL_CU | eSRC_POL_LM, 0 },
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/* iVAL_PURGEATLOGOFF */ { eSRC_POL_LM, 0 },
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/* iVAL_PURGEONLYAUTOCACHEATLOGOFF */ { eSRC_POL_LM, 0 },
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/* iVAL_FIRSTPINWIZARDSHOWN */ { eSRC_PREF_CU , 0 },
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/* iVAL_SLOWLINKSPEED */ { eSRC_PREF_CU | eSRC_PREF_LM | eSRC_POL_CU | eSRC_POL_LM, 640 },
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/* iVAL_ALWAYSPINSUBFOLDERS */ { eSRC_POL_LM, 0 },
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/* iVAL_ENCRYPTCACHE */ { eSRC_PREF_LM | eSRC_POL_LM, 0 },
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/* iVAL_NOFRADMINPIN */ { eSRC_POL_CU | eSRC_POL_LM, 0 }
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};
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//
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// This table maps registry keys and subkey names to our
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// source mask values. The array is ordered with the highest
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// precedence sources first. A policy level mask is also
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// associated with each entry so that we honor the "big switch"
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// for enabling/disabling CSCUI policies.
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//
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static const struct Source
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{
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eSources fSrc; // Source for reg data.
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HKEY hkeyRoot; // Root key in registry (hkcu, hklm).
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eSubkeys iSubkey; // Index into s_rgpszSubkeys[]
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} rgSrcs[] = { { eSRC_POL_LM, HKEY_LOCAL_MACHINE, iSUBKEY_POL },
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{ eSRC_POL_CU, HKEY_CURRENT_USER, iSUBKEY_POL },
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{ eSRC_PREF_CU, HKEY_CURRENT_USER, iSUBKEY_PREF },
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{ eSRC_PREF_LM, HKEY_LOCAL_MACHINE, iSUBKEY_PREF }
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};
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const Item& item = rgItems[iValue];
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DWORD dwResult = item.dwDefault; // Set default return value.
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bool bSetByPolicy = false;
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//
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// Iterate over all of the sources until we find one that is specified
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// for this item. For each iteration, if we're able to read the value,
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// that's the one we return. If not we drop down to the next source
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// in the precedence order (rgSrcs[]) and try to read it's value. If
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// we've tried all of the sources without a successful read we return the
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// hard-coded default.
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//
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for (int i = 0; i < ARRAYSIZE(rgSrcs); i++)
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{
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const Source& src = rgSrcs[i];
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//
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// Is this source valid for this item?
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//
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if (0 != (src.fSrc & item.fSrc))
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{
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//
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// This source is valid for this item. Read it.
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//
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DWORD cbResult = sizeof(dwResult);
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DWORD dwType;
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if (ERROR_SUCCESS == SHGetValue(src.hkeyRoot,
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s_rgpszSubkeys[src.iSubkey],
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s_rgpszValues[iValue],
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&dwType,
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&dwResult,
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&cbResult))
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{
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//
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// We read a value from the registry so we're done.
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//
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bSetByPolicy = (0 != (eSRC_POL & src.fSrc));
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break;
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}
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}
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}
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if (NULL != pbSetByPolicy)
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*pbSetByPolicy = bSetByPolicy;
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return dwResult;
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}
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//
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// Save a custom GoOfflineAction list to the registry.
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// See comments for LoadCustomGoOfflineActions for formatting details.
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//
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HRESULT
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CConfig::SaveCustomGoOfflineActions(
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RegKey& key,
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HDPA hdpaGOA
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)
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{
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if (NULL == hdpaGOA)
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{
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return E_INVALIDARG;
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}
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HRESULT hr = NOERROR;
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int cValuesNotDeleted = 0;
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key.DeleteAllValues(&cValuesNotDeleted);
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if (0 != cValuesNotDeleted)
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{
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Trace((TEXT("%d GoOfflineAction values not deleted from registry"),
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cValuesNotDeleted));
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}
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TCHAR szServer[MAX_PATH];
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TCHAR szAction[20];
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const int cGOA = DPA_GetPtrCount(hdpaGOA);
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for (int i = 0; i < cGOA; i++)
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{
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//
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// Write each sharename-action pair to the registry.
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// The action value must be converted to ASCII to be
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// compatible with the values generated by poledit.
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//
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CustomGOA *pGOA = (CustomGOA *)DPA_GetPtr(hdpaGOA, i);
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wnsprintf(szAction, ARRAYSIZE(szAction), TEXT("%d"), DWORD(pGOA->GetAction()));
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pGOA->GetServerName(szServer, ARRAYSIZE(szServer));
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hr = key.SetValue(szServer, szAction);
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if (FAILED(hr))
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{
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Trace((TEXT("Error 0x%08X saving GoOfflineAction for \"%s\" to registry."),
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hr, szServer));
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break;
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}
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}
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return hr;
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}
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bool
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CConfig::CustomGOAExists(
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HDPA hdpaGOA,
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const CustomGOA& goa
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)
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{
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if (NULL != hdpaGOA)
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{
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const int cEntries = DPA_GetPtrCount(hdpaGOA);
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for (int i = 0; i < cEntries; i++)
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{
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CustomGOA *pGOA = (CustomGOA *)DPA_GetPtr(hdpaGOA, i);
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if (NULL != pGOA)
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{
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if (0 == goa.CompareByServer(*pGOA))
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return true;
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}
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}
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}
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return false;
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}
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//
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// Builds an array of Go-offline actions.
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// Each entry is a server-action pair.
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//
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void
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CConfig::GetCustomGoOfflineActions(
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HDPA hdpa,
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bool *pbSetByPolicy // optional. Can be NULL.
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)
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{
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TraceAssert(NULL != hdpa);
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static const struct Source
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{
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eSources fSrc; // Source for reg data.
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HKEY hkeyRoot; // Root key in registry (hkcu, hklm).
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eSubkeys iSubkey; // Index into s_rgpszSubkeys[]
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} rgSrcs[] = { { eSRC_POL_LM, HKEY_LOCAL_MACHINE, iSUBKEY_POL },
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{ eSRC_POL_CU, HKEY_CURRENT_USER, iSUBKEY_POL },
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{ eSRC_PREF_CU, HKEY_CURRENT_USER, iSUBKEY_PREF }
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};
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ClearCustomGoOfflineActions(hdpa);
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TCHAR szName[MAX_PATH];
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HRESULT hr;
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bool bSetByPolicyAny = false;
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bool bSetByPolicy = false;
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//
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// Iterate over all of the possible sources.
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//
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for (int i = 0; i < ARRAYSIZE(rgSrcs); i++)
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{
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const Source& src = rgSrcs[i];
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RegKey key(src.hkeyRoot, s_rgpszSubkeys[src.iSubkey]);
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if (SUCCEEDED(key.Open(KEY_READ)))
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{
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RegKey keyGOA(key, REGSTR_SUBKEY_CUSTOMGOOFFLINEACTIONS);
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if (SUCCEEDED(keyGOA.Open(KEY_READ)))
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{
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TCHAR szValue[20];
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DWORD dwType;
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DWORD cbValue = sizeof(szValue);
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RegKey::ValueIterator iter = keyGOA.CreateValueIterator();
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while(S_OK == (hr = iter.Next(szName, ARRAYSIZE(szName), &dwType, (LPBYTE)szValue, &cbValue)))
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{
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if (REG_SZ == dwType)
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{
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//
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// Convert from "0","1","2" to 0,1,2
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//
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DWORD dwValue = szValue[0] - TEXT('0');
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if (IsValidGoOfflineAction(dwValue))
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{
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//
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// Only add if value is of proper type and value.
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// Protects against someone manually adding garbage
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// to the registry.
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//
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// Server names can also be entered into the registry
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// using poledit (and winnt.adm). This entry mechanism
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// can't validate format so we need to ensure the entry
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// doesn't have leading '\' or space characters.
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//
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LPCTSTR pszServer = szName;
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while(*pszServer && (TEXT('\\') == *pszServer || TEXT(' ') == *pszServer))
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pszServer++;
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bSetByPolicy = (0 != (src.fSrc & eSRC_POL));
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bSetByPolicyAny = bSetByPolicyAny || bSetByPolicy;
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CustomGOA *pGOA = new CustomGOA(pszServer,
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(CConfig::OfflineAction)dwValue,
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bSetByPolicy);
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if (NULL != pGOA)
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{
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if (CustomGOAExists(hdpa, *pGOA) || -1 == DPA_AppendPtr(hdpa, pGOA))
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{
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delete pGOA;
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}
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}
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}
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else
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{
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Trace((TEXT("GoOfflineAction value %d invalid for \"%s\""),
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dwValue, szName));
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}
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}
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else
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{
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Trace((TEXT("GoOfflineAction for \"%s\" has invalid reg type %d"),
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szName, dwType));
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}
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}
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}
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}
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}
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if (NULL != pbSetByPolicy)
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*pbSetByPolicy = bSetByPolicyAny;
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}
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//
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// Delete all CustomGOA blocks attached to a DPA.
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// When complete, the DPA is empty.
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//
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void
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CConfig::ClearCustomGoOfflineActions( // [static]
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HDPA hdpaGOA
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)
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{
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if (NULL != hdpaGOA)
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{
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const int cEntries = DPA_GetPtrCount(hdpaGOA);
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for (int i = cEntries - 1; 0 <= i; i--)
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{
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CustomGOA *pGOA = (CustomGOA *)DPA_GetPtr(hdpaGOA, i);
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delete pGOA;
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DPA_DeletePtr(hdpaGOA, i);
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}
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}
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}
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//
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// Retrieve the go-offline action for a specific server. If the server
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// has a "customized" action defined by either system policy or user
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// setting, that action is used. Otherwise, the "default" action is
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// used.
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//
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int
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CConfig::GoOfflineAction(
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LPCTSTR pszServer
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) const
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{
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int iAction = GoOfflineAction(); // Get default action.
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if (NULL == pszServer)
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return iAction;
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TraceAssert(NULL != pszServer);
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//
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// Skip passed any leading backslashes for comparison.
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// The values we store in the registry don't have a leading "\\".
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//
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while(*pszServer && TEXT('\\') == *pszServer)
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pszServer++;
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HRESULT hr;
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CConfig::OfflineActionInfo info;
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CConfig::OfflineActionIter iter = CreateOfflineActionIter();
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while(S_OK == (hr = iter.Next(&info)))
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{
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if (0 == lstrcmpi(pszServer, info.szServer))
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{
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iAction = info.iAction; // Return custom action.
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break;
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}
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}
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//
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// Guard against bogus reg data.
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//
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if (eNumOfflineActions <= iAction || 0 > iAction)
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iAction = eGoOfflineSilent;
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return iAction;
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}
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//-----------------------------------------------------------------------------
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// CConfig::CustomGOA
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// "GOA" is "Go Offline Action"
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//-----------------------------------------------------------------------------
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bool
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CConfig::CustomGOA::operator < (
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const CustomGOA& rhs
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) const
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{
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int diff = CompareByServer(rhs);
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if (0 == diff)
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diff = m_action - rhs.m_action;
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return diff < 0;
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}
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//
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// Compare two CustomGoOfflineAction objects by their
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// server names. Comparison is case-insensitive.
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// Returns: <0 = *this < rhs
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// 0 = *this == rhs
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// >0 = *this > rhs
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//
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int
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CConfig::CustomGOA::CompareByServer(
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const CustomGOA& rhs
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) const
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{
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return lstrcmpi(GetServerName(), rhs.GetServerName());
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}
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//-----------------------------------------------------------------------------
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// CConfig::OfflineActionIter
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//-----------------------------------------------------------------------------
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CConfig::OfflineActionIter::OfflineActionIter(
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const CConfig *pConfig
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) : m_pConfig(const_cast<CConfig *>(pConfig)),
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m_iAction(-1),
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m_hdpaGOA(DPA_Create(4))
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{
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}
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CConfig::OfflineActionIter::~OfflineActionIter(
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void
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)
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{
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if (NULL != m_hdpaGOA)
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{
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CConfig::ClearCustomGoOfflineActions(m_hdpaGOA);
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DPA_Destroy(m_hdpaGOA);
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}
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}
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HRESULT
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CConfig::OfflineActionIter::Next(
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OfflineActionInfo *pInfo
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)
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{
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if (NULL == m_hdpaGOA)
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{
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return E_OUTOFMEMORY;
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}
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HRESULT hr = S_FALSE;
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if (-1 == m_iAction)
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{
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m_pConfig->GetCustomGoOfflineActions(m_hdpaGOA);
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m_iAction = 0;
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}
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if (m_iAction < DSA_GetItemCount(m_hdpaGOA))
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{
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CustomGOA *pGOA = (CustomGOA *)DPA_GetPtr(m_hdpaGOA, m_iAction);
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if (NULL != pGOA)
|
|
{
|
|
lstrcpyn(pInfo->szServer, pGOA->GetServerName(), ARRAYSIZE(pInfo->szServer));
|
|
pInfo->iAction = (DWORD)pGOA->GetAction();
|
|
m_iAction++;
|
|
hr = S_OK;
|
|
}
|
|
}
|
|
return hr;
|
|
}
|
|
|
|
|
|
|