static bool ParseSha1(const CXmlItem &item, const char *name, Byte *digest)
{
int index = item.FindSubTag(name);
if (index < 0)
return false;
const CXmlItem &checkItem = item.SubItems[index];
AString style = checkItem.GetPropertyValue("style");
if (style == "SHA1")
{
AString s = checkItem.GetSubString();
if (s.Length() != 40)
return false;
for (int i = 0; i < s.Length(); i += 2)
{
Byte b0, b1;
if (!HexToByte(s[i], b0) || !HexToByte(s[i + 1], b1))
return false;
digest[i / 2] = (b0 << 4) | b1;
}
return true;
}
return false;
}
static bool ParseSha1(const CXmlItem &item, const char *name, Byte *digest)
{
int index = item.FindSubTag(name);
if (index < 0)
return false;
const CXmlItem &checkItem = item.SubItems[index];
const AString style = checkItem.GetPropVal("style");
if (style == "SHA1")
{
const AString s = checkItem.GetSubString();
if (s.Len() != SHA1_DIGEST_SIZE * 2)
return false;
for (unsigned i = 0; i < s.Len(); i += 2)
{
int b0 = HexToByte(s[i]);
int b1 = HexToByte(s[i + 1]);
if (b0 < 0 || b1 < 0)
return false;
digest[i / 2] = (Byte)((b0 << 4) | b1);
}
return true;
}
return false;
}
static bool AddItem(const CXmlItem &item, CObjectVector<CFile> &files, int parent)
{
if (!item.IsTag)
return true;
if (item.Name == "file")
{
CFile file;
file.Parent = parent;
parent = files.Size();
file.Name = item.GetSubStringForTag("name");
AString type = item.GetSubStringForTag("type");
if (type == "directory")
file.IsDir = true;
else if (type == "file")
file.IsDir = false;
else
return false;
int dataIndex = item.FindSubTag("data");
if (dataIndex >= 0 && !file.IsDir)
{
file.HasData = true;
const CXmlItem &dataItem = item.SubItems[dataIndex];
if (!ParseUInt64(dataItem, "size", file.Size))
return false;
if (!ParseUInt64(dataItem, "length", file.PackSize))
return false;
if (!ParseUInt64(dataItem, "offset", file.Offset))
return false;
file.Sha1IsDefined = ParseSha1(dataItem, "extracted-checksum", file.Sha1);
// file.packSha1IsDefined = ParseSha1(dataItem, "archived-checksum", file.packSha1);
int encodingIndex = dataItem.FindSubTag("encoding");
if (encodingIndex >= 0)
{
const CXmlItem &encodingItem = dataItem.SubItems[encodingIndex];
if (encodingItem.IsTag)
{
AString s = encodingItem.GetPropertyValue("style");
if (s.Length() >= 0)
{
AString appl = "application/";
if (s.Left(appl.Length()) == appl)
{
s = s.Mid(appl.Length());
AString xx = "x-";
if (s.Left(xx.Length()) == xx)
{
s = s.Mid(xx.Length());
if (s == "gzip")
s = METHOD_NAME_ZLIB;
}
}
file.Method = s;
}
}
}
}
file.CTime = ParseTime(item, "ctime");
file.MTime = ParseTime(item, "mtime");
file.ATime = ParseTime(item, "atime");
files.Add(file);
}
for (int i = 0; i < item.SubItems.Size(); i++)
if (!AddItem(item.SubItems[i], files, parent))
return false;
return true;
}
static bool AddItem(const CXmlItem &item, CObjectVector<CFile> &files, int parent)
{
if (!item.IsTag)
return true;
if (item.Name == "file")
{
CFile file;
file.Parent = parent;
parent = files.Size();
file.Name = item.GetSubStringForTag("name");
AString type = item.GetSubStringForTag("type");
if (type == "directory")
file.IsDir = true;
else if (type == "file")
file.IsDir = false;
else
return false;
int dataIndex = item.FindSubTag("data");
if (dataIndex >= 0 && !file.IsDir)
{
file.HasData = true;
const CXmlItem &dataItem = item.SubItems[dataIndex];
if (!ParseUInt64(dataItem, "size", file.Size))
return false;
if (!ParseUInt64(dataItem, "length", file.PackSize))
return false;
if (!ParseUInt64(dataItem, "offset", file.Offset))
return false;
file.Sha1IsDefined = ParseSha1(dataItem, "extracted-checksum", file.Sha1);
// file.packSha1IsDefined = ParseSha1(dataItem, "archived-checksum", file.packSha1);
int encodingIndex = dataItem.FindSubTag("encoding");
if (encodingIndex >= 0)
{
const CXmlItem &encodingItem = dataItem.SubItems[encodingIndex];
if (encodingItem.IsTag)
{
AString s = encodingItem.GetPropVal("style");
if (!s.IsEmpty())
{
const AString appl = "application/";
if (s.IsPrefixedBy(appl))
{
s.DeleteFrontal(appl.Len());
const AString xx = "x-";
if (s.IsPrefixedBy(xx))
{
s.DeleteFrontal(xx.Len());
if (s == "gzip")
s = METHOD_NAME_ZLIB;
}
}
file.Method = s;
}
}
}
}
file.CTime = ParseTime(item, "ctime");
file.MTime = ParseTime(item, "mtime");
file.ATime = ParseTime(item, "atime");
{
const AString s = item.GetSubStringForTag("mode");
if (s[0] == '0')
{
const char *end;
file.Mode = ConvertOctStringToUInt32(s, &end);
file.ModeDefined = (*end == 0);
}
}
file.User = item.GetSubStringForTag("user");
file.Group = item.GetSubStringForTag("group");
files.Add(file);
}
FOR_VECTOR (i, item.SubItems)
if (!AddItem(item.SubItems[i], files, parent))
return false;
return true;
}
