HRESULT ScaSqlStrsReadScripts(
__inout SCA_SQLSTR** ppsssList,
__in SCA_ACTION saAction
)
{
HRESULT hr = S_OK;
UINT er = ERROR_SUCCESS;
PMSIHANDLE hView, hRec;
PMSIHANDLE hViewBinary, hRecBinary;
PMSIHANDLE hViewUser, hRecUser;
LPWSTR pwzComponent = NULL;
LPWSTR pwzData = NULL;
BYTE* pbScript = NULL;
DWORD cbRead = 0;
DWORD cbScript = 0;
DWORD cchScript = 0;
LPWSTR pwzScriptBuffer = NULL;
WCHAR* pwzScript = NULL;
WCHAR* pwz;
DWORD cch = 0;
SCA_SQLSTR sss;
SCA_SQLSTR* psss = NULL;
if (S_OK != WcaTableExists(L"SqlScript") || S_OK != WcaTableExists(L"SqlDatabase") || S_OK != WcaTableExists(L"Binary"))
{
WcaLog(LOGMSG_VERBOSE, "Skipping ScaSqlStrsReadScripts() - SqlScripts and/or SqlDatabase table not present");
ExitFunction1(hr = S_FALSE);
}
// open a view on the binary table
hr = WcaOpenView(vcsSqlBinaryScriptQuery, &hViewBinary);
ExitOnFailure(hr, "Failed to open view on Binary table for SqlScripts");
// loop through all the sql scripts
hr = WcaOpenExecuteView(vcsSqlScriptQuery, &hView);
ExitOnFailure(hr, "Failed to open view on SqlScript table");
while (S_OK == (hr = WcaFetchRecord(hView, &hRec)))
{
INSTALLSTATE isInstalled = INSTALLSTATE_UNKNOWN;
INSTALLSTATE isAction = INSTALLSTATE_UNKNOWN;
hr = WcaGetRecordString(hRec, sscrqComponent, &pwzComponent);
ExitOnFailure(hr, "Failed to get Component for SQL Script.");
er = ::MsiGetComponentStateW(WcaGetInstallHandle(), pwzComponent, &isInstalled, &isAction);
hr = HRESULT_FROM_WIN32(er);
ExitOnFailure1(hr, "Failed to get state for component: %ls", pwzComponent);
// If we're doing install but the Component is not being installed or we're doing
// uninstall but the Component is not being uninstalled, skip it.
if ((WcaIsInstalling(isInstalled, isAction) && SCA_ACTION_INSTALL != saAction) ||
(WcaIsUninstalling(isInstalled, isAction) && SCA_ACTION_UNINSTALL != saAction))
{
continue;
}
::ZeroMemory(&sss, sizeof(sss));
sss.isInstalled = isInstalled;
sss.isAction = isAction;
hr = WcaGetRecordString(hRec, sscrqSqlScript, &pwzData);
ExitOnFailure(hr, "Failed to get SqlScript.Script");
hr = ::StringCchCopyW(sss.wzKey, countof(sss.wzKey), pwzData);
ExitOnFailure1(hr, "Failed to copy SqlScript.Script: %ls", pwzData);
// find the database information for this string
hr = WcaGetRecordString(hRec, sscrqSqlDb, &pwzData);
ExitOnFailure1(hr, "Failed to get SqlScript.SqlDb_ for SqlScript '%ls'", sss.wzKey);
hr = ::StringCchCopyW(sss.wzSqlDb, countof(sss.wzSqlDb), pwzData);
ExitOnFailure1(hr, "Failed to copy SqlScritp.SqlDbb: %ls", pwzData);
hr = WcaGetRecordInteger(hRec, sscrqAttributes, &sss.iAttributes);
ExitOnFailure1(hr, "Failed to get SqlScript.Attributes for SqlScript '%ls'", sss.wzKey);
hr = WcaGetRecordInteger(hRec, sscrqSequence, &sss.iSequence);
ExitOnFailure1(hr, "Failed to get SqlScript.Sequence for SqlScript '%ls'", sss.wzKey);
// get the sql script out of the binary stream
hr = WcaExecuteView(hViewBinary, hRec);
ExitOnFailure1(hr, "Failed to open SqlScript.BinaryScript_ for SqlScript '%ls'", sss.wzKey);
hr = WcaFetchSingleRecord(hViewBinary, &hRecBinary);
ExitOnFailure1(hr, "Failed to fetch SqlScript.BinaryScript_ for SqlScript '%ls'", sss.wzKey);
// Note: We need to allocate an extra character on the stream to NULL terminate the SQL script.
// The WcaGetRecordStream() function won't let us add extra space on the end of the stream
// so we'll read the stream "the old fashioned way".
//hr = WcaGetRecordStream(hRecBinary, ssbsqData, (BYTE**)&pbScript, &cbScript);
//ExitOnFailure1(hr, "Failed to read SqlScript.BinaryScript_ for SqlScript '%ls'", sss.wzKey);
er = ::MsiRecordReadStream(hRecBinary, ssbsqData, NULL, &cbRead);
hr = HRESULT_FROM_WIN32(er);
ExitOnFailure(hr, "failed to get size of stream");
cbScript = cbRead + sizeof(WCHAR); // we may have an ANSI SQL script but leave enough to even NULL terminate a WCHAR string
hr = WcaAllocStream(&pbScript, cbScript); // this will allocate a fully zeroed out buffer so our string will be NULL terminated
ExitOnFailure(hr, "failed to allocate data for stream");
er = ::MsiRecordReadStream(hRecBinary, ssbsqData, reinterpret_cast<char*>(pbScript), &cbRead); //read the buffer but leave the space for the NULL terminator
hr = HRESULT_FROM_WIN32(er);
ExitOnFailure(hr, "failed to read from stream");
Assert(cbRead + sizeof(WCHAR) == cbScript);
// Check for the UNICODE BOM file marker.
if ((0xFF == *pbScript) && (0xFE == *(pbScript + 1)))
{
// Copy the UNICODE string after the BOM marker (subtract one because we'll skip the BOM marker).
cchScript = (cbScript / sizeof(WCHAR)) - 1;
hr = StrAllocString(&pwzScriptBuffer, reinterpret_cast<LPWSTR>(pbScript) + 1, 0);
ExitOnFailure1(hr, "Failed to allocate WCHAR string of size '%d'", cchScript);
}
else
{
// We have an ANSI string so convert it to UNICODE.
cchScript = cbScript;
hr = StrAllocStringAnsi(&pwzScriptBuffer, reinterpret_cast<LPCSTR>(pbScript), 0, CP_ACP);
ExitOnFailure1(hr, "Failed to allocate WCHAR string of size '%d'", cchScript);
}
// Free the byte buffer since it has been converted to a new UNICODE string, one way or another.
if (pbScript)
{
WcaFreeStream(pbScript);
pbScript = NULL;
}
// Process the SQL script stripping out unnecessary stuff (like comments) and looking for "GO" statements.
pwzScript = pwzScriptBuffer;
while (cchScript && pwzScript && *pwzScript)
{
// strip off leading whitespace
while (cchScript && *pwzScript && iswspace(*pwzScript))
{
++pwzScript;
--cchScript;
}
Assert(0 <= cchScript);
// if there is a SQL comment remove it
while (cchScript && L'/' == *pwzScript && L'*' == *(pwzScript + 1))
{
// go until end of comment
while (cchScript && *pwzScript && *(pwzScript + 1) && !(L'*' == *pwzScript && L'/' == *(pwzScript + 1)))
{
++pwzScript;
--cchScript;
}
Assert(2 <= cchScript);
if (2 <= cchScript)
{
// to account for */ at end
pwzScript+=2;
cchScript-=2;
}
Assert(0 <= cchScript);
// strip off any new leading whitespace
while (cchScript && *pwzScript && iswspace(*pwzScript))
{
++pwzScript;
--cchScript;
}
}
while (cchScript && L'-' == *pwzScript && L'-' == *(pwzScript + 1))
{
// go past the new line character
while (cchScript && *pwzScript && L'\n' != *pwzScript)
{
++pwzScript;
--cchScript;
}
Assert(0 <= cchScript);
if (cchScript && L'\n' == *pwzScript)
{
++pwzScript;
--cchScript;
}
Assert(0 <= cchScript);
// strip off any new leading whitespace
while (cchScript && *pwzScript && iswspace(*pwzScript))
{
++pwzScript;
--cchScript;
}
}
Assert(0 <= cchScript);
// try to isolate a "GO" keyword and count the characters in the SQL string
pwz = pwzScript;
cch = 0;
while (cchScript && *pwz)
{
//skip past comment lines that might have "go" in them
//note that these comments are "in the middle" of our function,
//or possibly at the end of a line
if (cchScript && L'-' == *pwz && L'-' == *(pwz + 1))
{
// skip past chars until the new line character
while (cchScript && *pwz && (L'\n' != *pwz))
{
++pwz;
++cch;
--cchScript;
}
}
//skip past comment lines of form /* to */ that might have "go" in them
//note that these comments are "in the middle" of our function,
//or possibly at the end of a line
if (cchScript && L'/' == *pwz && L'*' == *(pwz + 1))
{
// skip past chars until the new line character
while (cchScript && *pwz && *(pwz + 1) && !((L'*' == *pwz) && (L'/' == *(pwz + 1))))
{
++pwz;
++cch;
--cchScript;
}
if (2 <= cchScript)
{
// to account for */ at end
pwz+=2;
cch+=2;
cchScript-=2;
}
}
// Skip past strings that may be part of the SQL statement that might have a "go" in them
if ( cchScript && L'\'' == *pwz )
{
++pwz;
++cch;
--cchScript;
// Skip past chars until the end of the string
while ( cchScript && *pwz && !(L'\'' == *pwz) )
{
++pwz;
++cch;
--cchScript;
}
}
// Skip past strings that may be part of the SQL statement that might have a "go" in them
if ( cchScript && L'\"' == *pwz )
{
++pwz;
++cch;
--cchScript;
// Skip past chars until the end of the string
while ( cchScript && *pwz && !(L'\"' == *pwz) )
{
++pwz;
++cch;
--cchScript;
}
}
// if "GO" is isolated
if ((pwzScript == pwz || iswspace(*(pwz - 1))) &&
(L'G' == *pwz || L'g' == *pwz) &&
(L'O' == *(pwz + 1) || L'o' == *(pwz + 1)) &&
(0 == *(pwz + 2) || iswspace(*(pwz + 2))))
{
*pwz = 0; // null terminate the SQL string on the "G"
pwz += 2;
cchScript -= 2;
break; // found "GO" now add SQL string to list
}
++pwz;
++cch;
--cchScript;
}
Assert(0 <= cchScript);
if (0 < cch) //don't process if there's nothing to process
{
// replace tabs with spaces
for (LPWSTR pwzTab = wcsstr(pwzScript, L"\t"); pwzTab; pwzTab = wcsstr(pwzTab, L"\t"))
*pwzTab = ' ';
// strip off whitespace at the end of the script string
for (LPWSTR pwzErase = pwzScript + cch - 1; pwzScript < pwzErase && iswspace(*pwzErase); pwzErase--)
{
*(pwzErase) = 0;
cch--;
}
}
if (0 < cch)
{
hr = NewSqlStr(&psss);
ExitOnFailure(hr, "failed to allocate new sql string element");
// copy everything over
hr = ::StringCchCopyW(psss->wzKey, countof(psss->wzKey), sss.wzKey);
ExitOnFailure(hr, "Failed to copy key string to sqlstr object");
hr = ::StringCchCopyW(psss->wzSqlDb, countof(psss->wzSqlDb), sss.wzSqlDb);
ExitOnFailure(hr, "Failed to copy DB string to sqlstr object");
hr = ::StringCchCopyW(psss->wzComponent, countof(psss->wzComponent), sss.wzComponent);
ExitOnFailure(hr, "Failed to copy component string to sqlstr object");
psss->isInstalled = sss.isInstalled;
psss->isAction = sss.isAction;
psss->iAttributes = sss.iAttributes;
psss->iSequence = sss.iSequence;
// cchRequired includes the NULL terminating char
hr = StrAllocString(&psss->pwzSql, pwzScript, 0);
ExitOnFailure1(hr, "Failed to allocate string for SQL script: '%ls'", psss->wzKey);
*ppsssList = AddSqlStrToList(*ppsssList, psss);
psss = NULL; // set the db NULL so it doesn't accidentally get freed below
}
pwzScript = pwz;
}
}
if (E_NOMOREITEMS == hr)
{
hr = S_OK;
}
ExitOnFailure(hr, "Failure occured while reading SqlString table");
LExit:
// if anything was left over after an error clean it all up
if (psss)
{
ScaSqlStrsFreeList(psss);
}
if (pbScript)
{
WcaFreeStream(pbScript);
}
ReleaseStr(pwzScriptBuffer);
ReleaseStr(pwzData);
ReleaseStr(pwzComponent);
return hr;
}
HRESULT ScaSqlStrsRead(
__inout SCA_SQLSTR** ppsssList,
__in SCA_ACTION saAction
)
{
HRESULT hr = S_OK;
UINT er = ERROR_SUCCESS;
PMSIHANDLE hView, hRec;
PMSIHANDLE hViewUser, hRecUser;
LPWSTR pwzComponent = NULL;
LPWSTR pwzData = NULL;
SCA_SQLSTR* psss = NULL;
if (S_OK != WcaTableExists(L"SqlString") || S_OK != WcaTableExists(L"SqlDatabase"))
{
WcaLog(LOGMSG_VERBOSE, "Skipping ScaSqlStrsRead() - SqlString and/or SqlDatabase table not present");
ExitFunction1(hr = S_FALSE);
}
// loop through all the sql strings
hr = WcaOpenExecuteView(vcsSqlStringQuery, &hView);
ExitOnFailure(hr, "Failed to open view on SqlString table");
while (S_OK == (hr = WcaFetchRecord(hView, &hRec)))
{
INSTALLSTATE isInstalled = INSTALLSTATE_UNKNOWN;
INSTALLSTATE isAction = INSTALLSTATE_UNKNOWN;
hr = WcaGetRecordString(hRec, ssqComponent, &pwzComponent);
ExitOnFailure(hr, "Failed to get Component for SQL String.");
er = ::MsiGetComponentStateW(WcaGetInstallHandle(), pwzComponent, &isInstalled, &isAction);
hr = HRESULT_FROM_WIN32(er);
ExitOnFailure1(hr, "Failed to get state for component: %ls", pwzComponent);
// If we're doing install but the Component is not being installed or we're doing
// uninstall but the Component is not being uninstalled, skip it.
if ((WcaIsInstalling(isInstalled, isAction) && SCA_ACTION_INSTALL != saAction) ||
(WcaIsUninstalling(isInstalled, isAction) && SCA_ACTION_UNINSTALL != saAction))
{
continue;
}
hr = NewSqlStr(&psss);
ExitOnFailure(hr, "failed to allocation new sql string element");
psss->isInstalled = isInstalled;
psss->isAction = isAction;
hr = WcaGetRecordString(hRec, ssqSqlString, &pwzData);
ExitOnFailure(hr, "Failed to get SqlString.String");
hr = ::StringCchCopyW(psss->wzKey, countof(psss->wzKey), pwzData);
ExitOnFailure1(hr, "Failed to copy SqlString.String: %ls", pwzData);
// find the database information for this string
hr = WcaGetRecordString(hRec, ssqSqlDb, &pwzData);
ExitOnFailure1(hr, "Failed to get SqlString.SqlDb_ for SqlString '%ls'", psss->wzKey);
hr = ::StringCchCopyW(psss->wzSqlDb, countof(psss->wzSqlDb), pwzData);
ExitOnFailure1(hr, "Failed to copy SqlString.SqlDb_: %ls", pwzData);
hr = WcaGetRecordInteger(hRec, ssqAttributes, &psss->iAttributes);
ExitOnFailure1(hr, "Failed to get SqlString.Attributes for SqlString '%ls'", psss->wzKey);
//get the sequence number for the string (note that this will be sequenced with scripts too)
hr = WcaGetRecordInteger(hRec, ssqSequence, &psss->iSequence);
ExitOnFailure1(hr, "Failed to get SqlString.Sequence for SqlString '%ls'", psss->wzKey);
// execute SQL
hr = WcaGetRecordFormattedString(hRec, ssqSQL, &pwzData);
ExitOnFailure1(hr, "Failed to get SqlString.SQL for SqlString '%ls'", psss->wzKey);
Assert(!psss->pwzSql);
hr = StrAllocString(&psss->pwzSql, pwzData, 0);
ExitOnFailure1(hr, "Failed to alloc string for SqlString '%ls'", psss->wzKey);
*ppsssList = AddSqlStrToList(*ppsssList, psss);
psss = NULL; // set the sss to NULL so it doesn't get freed below
}
if (E_NOMOREITEMS == hr)
{
hr = S_OK;
}
ExitOnFailure(hr, "Failure occured while reading SqlString table");
LExit:
// if anything was left over after an error clean it all up
if (psss)
{
ScaSqlStrsFreeList(psss);
}
ReleaseStr(pwzData);
ReleaseStr(pwzComponent);
return hr;
}
HRESULT ScaSqlStrsRead(
__inout SCA_SQLSTR** ppsssList
)
{
HRESULT hr = S_OK;
UINT er = ERROR_SUCCESS;
PMSIHANDLE hView, hRec;
PMSIHANDLE hViewUser, hRecUser;
LPWSTR pwzData = NULL;
SCA_SQLSTR* psss = NULL;
if (S_OK != WcaTableExists(L"SqlString") || S_OK != WcaTableExists(L"SqlDatabase"))
{
WcaLog(LOGMSG_VERBOSE, "Skipping ScaSqlStrsRead() - SqlString and/or SqlDatabase table not present");
hr = S_FALSE;
goto LExit;
}
// loop through all the sql strings
hr = WcaOpenExecuteView(vcsSqlStringQuery, &hView);
ExitOnFailure(hr, "Failed to open view on SqlString table");
while (S_OK == (hr = WcaFetchRecord(hView, &hRec)))
{
hr = NewSqlStr(&psss);
ExitOnFailure(hr, "failed to allocation new sql string element");
hr = WcaGetRecordString(hRec, ssqSqlString, &pwzData);
ExitOnFailure(hr, "Failed to get SqlString.String");
StringCchCopyW(psss->wzKey, countof(psss->wzKey), pwzData);
// find the database information for this string
hr = WcaGetRecordString(hRec, ssqSqlDb, &pwzData);
ExitOnFailure1(hr, "Failed to get SqlString.SqlDb_ for SqlString '%S'", psss->wzKey);
StringCchCopyW(psss->wzSqlDb, countof(psss->wzSqlDb), pwzData);
// get component install state
hr = WcaGetRecordString(hRec, ssqComponent, &pwzData);
ExitOnFailure1(hr, "Failed to get SqlString.Component_ for SqlString '%S'", psss->wzKey);
StringCchCopyW(psss->wzComponent, countof(psss->wzComponent), pwzData);
er = ::MsiGetComponentStateW(WcaGetInstallHandle(), pwzData, &psss->isInstalled, &psss->isAction);
hr = HRESULT_FROM_WIN32(er);
ExitOnFailure1(hr, "Failed to get Component state for SqlString '%S'", psss->wzKey);
hr = WcaGetRecordInteger(hRec, ssqAttributes, &psss->iAttributes);
ExitOnFailure1(hr, "Failed to get SqlString.Attributes for SqlString '%S'", psss->wzKey);
//get the sequence number for the string (note that this will be sequenced with scripts too)
hr = WcaGetRecordInteger(hRec, ssqSequence, &psss->iSequence);
ExitOnFailure1(hr, "Failed to get SqlString.Sequence for SqlString '%S'", psss->wzKey);
// execute SQL
hr = WcaGetRecordFormattedString(hRec, ssqSQL, &pwzData);
ExitOnFailure1(hr, "Failed to get SqlString.SQL for SqlString '%S'", psss->wzKey);
Assert(!psss->pwzSql);
hr = StrAllocString(&psss->pwzSql, pwzData, 0);
ExitOnFailure1(hr, "Failed to alloc string for SqlString '%S'", psss->wzKey);
*ppsssList = AddSqlStrToList(*ppsssList, psss);
psss = NULL; // set the db NULL so it doesn't accidentally get freed below
}
if (E_NOMOREITEMS == hr)
hr = S_OK;
ExitOnFailure(hr, "Failure occured while reading SqlString table");
LExit:
// if anything was left over after an error clean it all up
if (psss)
{
ScaSqlStrsFreeList(psss);
}
ReleaseStr(pwzData);
return hr;
}
