[PATCH 2/9] msi: Add support for exporting the _SummaryInformation table.

[Hans Leidekker]

From: "Erich E. Hoover" <erich.e.hoover(a)gmail.com>

The _SummaryInformation table stores a lot of important information
about an MSI database.  This patch adds the ability to export that
table since, like _ForceCodepage, it is stored in a different format
than the other tables.

v2: Avoid lstrlenA calls.

Signed-off-by: Erich E. Hoover <erich.e.hoover(a)gmail.com>
Signed-off-by: Hans Leidekker <hans(a)codeweavers.com>
---
 dlls/msi/database.c |  29 +++++++++---
 dlls/msi/msipriv.h  |   1 +
 dlls/msi/suminfo.c  | 109 ++++++++++++++++++++++++++++++++++++++++++++
 3 files changed, 133 insertions(+), 6 deletions(-)

diff --git a/dlls/msi/database.c b/dlls/msi/database.c
index b8ec39322b..589dce510d 100644
--- a/dlls/msi/database.c
+++ b/dlls/msi/database.c
@@ -974,24 +974,35 @@ static UINT msi_export_forcecodepage( HANDLE handle, UINT codepage )
 {
     static const char fmt[] = "\r\n\r\n%u\t_ForceCodepage\r\n";
     char data[sizeof(fmt) + 10];
-    DWORD sz;
-
-    sprintf( data, fmt, codepage );
+    DWORD sz = sprintf( data, fmt, codepage );
 
-    sz = lstrlenA(data) + 1;
     if (!WriteFile(handle, data, sz, &sz, NULL))
         return ERROR_FUNCTION_FAILED;
 
     return ERROR_SUCCESS;
 }
 
-static UINT MSI_DatabaseExport( MSIDATABASE *db, LPCWSTR table,
-               LPCWSTR folder, LPCWSTR file )
+static UINT msi_export_summaryinformation( MSIDATABASE *db, HANDLE handle )
+{
+    static const char header[] = "PropertyId\tValue\r\n"
+                                 "i2\tl255\r\n"
+                                 "_SummaryInformation\tPropertyId\r\n";
+    DWORD sz = ARRAY_SIZE(header) - 1;
+
+    if (!WriteFile(handle, header, sz, &sz, NULL))
+        return ERROR_WRITE_FAULT;
+
+    return msi_export_suminfo( db, handle );
+}
+
+static UINT MSI_DatabaseExport( MSIDATABASE *db, LPCWSTR table, LPCWSTR folder, LPCWSTR file )
 {
     static const WCHAR query[] = {
         's','e','l','e','c','t',' ','*',' ','f','r','o','m',' ','%','s',0 };
     static const WCHAR forcecodepage[] = {
         '_','F','o','r','c','e','C','o','d','e','p','a','g','e',0 };
+    static const WCHAR summaryinformation[] = {
+        '_','S','u','m','m','a','r','y','I','n','f','o','r','m','a','t','i','o','n',0 };
     MSIRECORD *rec = NULL;
     MSIQUERY *view = NULL;
     LPWSTR filename;
@@ -1026,6 +1037,12 @@ static UINT MSI_DatabaseExport( MSIDATABASE *db, LPCWSTR table,
         goto done;
     }
 
+    if (!strcmpW( table, summaryinformation ))
+    {
+        r = msi_export_summaryinformation( db, handle );
+        goto done;
+    }
+
     r = MSI_OpenQuery( db, &view, query, table );
     if (r == ERROR_SUCCESS)
     {
diff --git a/dlls/msi/msipriv.h b/dlls/msi/msipriv.h
index 4b2b65a13b..39219a646f 100644
--- a/dlls/msi/msipriv.h
+++ b/dlls/msi/msipriv.h
@@ -961,6 +961,7 @@ extern LPWSTR msi_suminfo_dup_string( MSISUMMARYINFO *si, UINT uiProperty ) DECL
 extern INT msi_suminfo_get_int32( MSISUMMARYINFO *si, UINT uiProperty ) DECLSPEC_HIDDEN;
 extern LPWSTR msi_get_suminfo_product( IStorage *stg ) DECLSPEC_HIDDEN;
 extern UINT msi_add_suminfo( MSIDATABASE *db, LPWSTR **records, int num_records, int num_columns ) DECLSPEC_HIDDEN;
+extern UINT msi_export_suminfo( MSIDATABASE *db, HANDLE handle ) DECLSPEC_HIDDEN;
 extern UINT msi_load_suminfo_properties( MSIPACKAGE *package ) DECLSPEC_HIDDEN;
 
 /* undocumented functions */
diff --git a/dlls/msi/suminfo.c b/dlls/msi/suminfo.c
index 98f6330d9f..c812ae09a4 100644
--- a/dlls/msi/suminfo.c
+++ b/dlls/msi/suminfo.c
@@ -23,6 +23,7 @@
 #define COBJMACROS
 #define NONAMELESSUNION
 
+#include "stdio.h"
 #include "windef.h"
 #include "winbase.h"
 #include "winreg.h"
@@ -1096,6 +1097,114 @@ end:
     return r;
 }
 
+static UINT save_prop( MSISUMMARYINFO *si, HANDLE handle, UINT row )
+{
+    static const char fmt_systemtime[] = "%04u/%02u/%02u %02u:%02u:%02u";
+    char data[36]; /* largest string: YYYY/MM/DD hh:mm:ss */
+    static const char fmt_begin[] = "%u\t";
+    static const char data_end[] = "\r\n";
+    static const char fmt_int[] = "%u";
+    UINT r, data_type, len;
+    SYSTEMTIME system_time;
+    FILETIME file_time;
+    INT int_value;
+    awstring str;
+    DWORD sz;
+
+    str.unicode = FALSE;
+    str.str.a = NULL;
+    len = 0;
+    r = get_prop( si, row, &data_type, &int_value, &file_time, &str, &len );
+    if (r != ERROR_SUCCESS && r != ERROR_MORE_DATA)
+        return r;
+    if (data_type == VT_EMPTY)
+        return ERROR_SUCCESS; /* property not set */
+    sz = sprintf( data, fmt_begin, row );
+    if (!WriteFile( handle, data, sz, &sz, NULL ))
+        return ERROR_WRITE_FAULT;
+
+    switch( data_type )
+    {
+    case VT_I2:
+    case VT_I4:
+        sz = sprintf( data, fmt_int, int_value );
+        if (!WriteFile( handle, data, sz, &sz, NULL ))
+            return ERROR_WRITE_FAULT;
+        break;
+    case VT_LPSTR:
+        len++;
+        if (!(str.str.a = msi_alloc( len )))
+            return ERROR_OUTOFMEMORY;
+        r = get_prop( si, row, NULL, NULL, NULL, &str, &len );
+        if (r != ERROR_SUCCESS)
+        {
+            msi_free( str.str.a );
+            return r;
+        }
+        sz = len;
+        if (!WriteFile( handle, str.str.a, sz, &sz, NULL ))
+        {
+            msi_free( str.str.a );
+            return ERROR_WRITE_FAULT;
+        }
+        msi_free( str.str.a );
+        break;
+    case VT_FILETIME:
+        if (!FileTimeToSystemTime( &file_time, &system_time ))
+            return ERROR_FUNCTION_FAILED;
+        sz = sprintf( data, fmt_systemtime, system_time.wYear, system_time.wMonth,
+                      system_time.wDay, system_time.wHour, system_time.wMinute,
+                      system_time.wSecond );
+        if (!WriteFile( handle, data, sz, &sz, NULL ))
+            return ERROR_WRITE_FAULT;
+        break;
+    case VT_EMPTY:
+        /* cannot reach here, property not set */
+        break;
+    default:
+        FIXME( "Unknown property variant type\n" );
+        return ERROR_FUNCTION_FAILED;
+    }
+
+    sz = ARRAY_SIZE(data_end) - 1;
+    if (!WriteFile( handle, data_end, sz, &sz, NULL ))
+        return ERROR_WRITE_FAULT;
+
+    return ERROR_SUCCESS;
+}
+
+UINT msi_export_suminfo( MSIDATABASE *db, HANDLE handle )
+{
+    UINT i, r, num_rows;
+    MSISUMMARYINFO *si;
+
+    r = msi_get_suminfo( db->storage, 0, &si );
+    if (r != ERROR_SUCCESS)
+        r = msi_get_db_suminfo( db, 0, &si );
+    if (r != ERROR_SUCCESS)
+        return r;
+
+    num_rows = get_property_count( si->property );
+    if (!num_rows)
+    {
+        msiobj_release( &si->hdr );
+        return ERROR_FUNCTION_FAILED;
+    }
+
+    for (i = 0; i < num_rows; i++)
+    {
+        r = save_prop( si, handle, i );
+        if (r != ERROR_SUCCESS)
+        {
+            msiobj_release( &si->hdr );
+            return r;
+        }
+    }
+
+    msiobj_release( &si->hdr );
+    return ERROR_SUCCESS;
+}
+
 UINT WINAPI MsiSummaryInfoPersist( MSIHANDLE handle )
 {
     MSISUMMARYINFO *si;
-- 
2.20.1