private static IEnumerable <ComparisonUnit> GetHierarchicalComparisonUnits(
IEnumerable <WithHierarchicalGroupingKey> input,
int level)
{
IEnumerable <IGrouping <string, WithHierarchicalGroupingKey> > grouped = input
.GroupAdjacent(
whgk => level >= whgk.HierarchicalGroupingArray.Length ? "" : whgk.HierarchicalGroupingArray[level]);
List <ComparisonUnit> retList = grouped
.Select(gc =>
{
if (gc.Key == "")
{
return((IEnumerable <ComparisonUnit>)gc.Select(whgk => whgk.ComparisonUnitWord).ToList());
}
string[] spl = gc.Key.Split(':');
ComparisonUnitGroupType groupType = WmlComparerUtil.ComparisonUnitGroupTypeFromLocalName(spl[0]);
IEnumerable <ComparisonUnit> childHierarchicalComparisonUnits = GetHierarchicalComparisonUnits(gc, level + 1);
var newCompUnitGroup = new ComparisonUnitGroup(childHierarchicalComparisonUnits, groupType, level);
return(new[] { newCompUnitGroup });
})
.SelectMany(m => m)
.ToList();
return(retList);
}
public ComparisonUnitWord(IEnumerable <ComparisonUnitAtom> comparisonUnitAtomList)
{
Contents = comparisonUnitAtomList.OfType <ComparisonUnit>().ToList();
string sha1String = Contents.Select(c => c.SHA1Hash).StringConcatenate();
SHA1Hash = WmlComparerUtil.SHA1HashStringForUTF8String(sha1String);
}
private static WmlDocument HashBlockLevelContent(
WmlDocument source,
WmlDocument sourceAfterProc,
WmlComparerSettings settings)
{
using (var msSource = new MemoryStream())
using (var msAfterProc = new MemoryStream())
{
msSource.Write(source.DocumentByteArray, 0, source.DocumentByteArray.Length);
msAfterProc.Write(sourceAfterProc.DocumentByteArray, 0, sourceAfterProc.DocumentByteArray.Length);
using (WordprocessingDocument wDocSource = WordprocessingDocument.Open(msSource, true))
using (WordprocessingDocument wDocAfterProc = WordprocessingDocument.Open(msAfterProc, true))
{
// create Unid dictionary for source
XDocument sourceMainXDoc = wDocSource.MainDocumentPart.GetXDocument();
XElement sourceMainRoot = sourceMainXDoc.Root ?? throw new ArgumentException();
Dictionary <string, XElement> sourceUnidDict = sourceMainRoot
.Descendants()
.Where(d => d.Name == W.p || d.Name == W.tbl || d.Name == W.tr)
.ToDictionary(d => (string)d.Attribute(PtOpenXml.Unid));
XDocument afterProcMainXDoc = wDocAfterProc.MainDocumentPart.GetXDocument();
XElement afterProcMainRoot = afterProcMainXDoc.Root ?? throw new ArgumentException();
IEnumerable <XElement> blockLevelElements = afterProcMainRoot
.Descendants()
.Where(d => d.Name == W.p || d.Name == W.tbl || d.Name == W.tr);
foreach (XElement blockLevelContent in blockLevelElements)
{
var cloneBlockLevelContentForHashing = (XElement)CloneBlockLevelContentForHashing(
wDocAfterProc.MainDocumentPart,
blockLevelContent,
true,
settings);
string shaString = cloneBlockLevelContentForHashing
.ToString(SaveOptions.DisableFormatting)
.Replace(" xmlns=\"http://schemas.openxmlformats.org/wordprocessingml/2006/main\"", "");
string sha1Hash = WmlComparerUtil.SHA1HashStringForUTF8String(shaString);
var thisUnid = (string)blockLevelContent.Attribute(PtOpenXml.Unid);
if (thisUnid != null)
{
if (sourceUnidDict.ContainsKey(thisUnid))
{
XElement correlatedBlockLevelContent = sourceUnidDict[thisUnid];
correlatedBlockLevelContent.Add(new XAttribute(PtOpenXml.CorrelatedSHA1Hash, sha1Hash));
}
}
}
wDocSource.MainDocumentPart.PutXDocument();
}
var sourceWithCorrelatedSHA1Hash = new WmlDocument(source.FileName, msSource.ToArray());
return(sourceWithCorrelatedSHA1Hash);
}
}
public ComparisonUnitAtom(
XElement contentElement,
XElement[] ancestorElements,
OpenXmlPart part,
WmlComparerSettings settings)
{
ContentElement = contentElement;
AncestorElements = ancestorElements;
Part = part;
RevTrackElement = GetRevisionTrackingElementFromAncestors(contentElement, AncestorElements);
if (RevTrackElement == null)
{
CorrelationStatus = CorrelationStatus.Equal;
}
else
{
if (RevTrackElement.Name == W.del)
{
CorrelationStatus = CorrelationStatus.Deleted;
}
else if (RevTrackElement.Name == W.ins)
{
CorrelationStatus = CorrelationStatus.Inserted;
}
}
var sha1Hash = (string)contentElement.Attribute(PtOpenXml.SHA1Hash);
if (sha1Hash != null)
{
SHA1Hash = sha1Hash;
}
else
{
string shaHashString = GetSha1HashStringForElement(ContentElement, settings);
SHA1Hash = WmlComparerUtil.SHA1HashStringForUTF8String(shaHashString);
}
}
// prohibit
// - altChunk
// - subDoc
// - contentPart
// This strips all text nodes from the XML tree, thereby leaving only the structure.
private static object CloneBlockLevelContentForHashing(
OpenXmlPart mainDocumentPart,
XNode node,
bool includeRelatedParts,
WmlComparerSettings settings)
{
if (node is XElement element)
{
if (element.Name == W.bookmarkStart ||
element.Name == W.bookmarkEnd ||
element.Name == W.pPr ||
element.Name == W.rPr)
{
return(null);
}
if (element.Name == W.p)
{
var clonedPara = new XElement(element.Name,
element.Attributes().Where(a => a.Name != W.rsid &&
a.Name != W.rsidDel &&
a.Name != W.rsidP &&
a.Name != W.rsidR &&
a.Name != W.rsidRDefault &&
a.Name != W.rsidRPr &&
a.Name != W.rsidSect &&
a.Name != W.rsidTr &&
a.Name.Namespace != PtOpenXml.pt),
element.Nodes().Select(n =>
CloneBlockLevelContentForHashing(mainDocumentPart, n, includeRelatedParts, settings)));
IEnumerable <IGrouping <bool, XElement> > groupedRuns = clonedPara
.Elements()
.GroupAdjacent(e => e.Name == W.r &&
e.Elements().Count() == 1 &&
e.Element(W.t) != null);
var clonedParaWithGroupedRuns = new XElement(element.Name,
groupedRuns.Select(g =>
{
if (g.Key)
{
string text = g.Select(t => t.Value).StringConcatenate();
if (settings.CaseInsensitive)
{
text = text.ToUpper(settings.CultureInfo);
}
var newRun = (object)new XElement(W.r,
new XElement(W.t,
text));
return(newRun);
}
return(g);
}));
return(clonedParaWithGroupedRuns);
}
if (element.Name == W.r)
{
IEnumerable <XElement> clonedRuns = element
.Elements()
.Where(e => e.Name != W.rPr)
.Select(rc => new XElement(W.r,
CloneBlockLevelContentForHashing(mainDocumentPart, rc, includeRelatedParts, settings)));
return(clonedRuns);
}
if (element.Name == W.tbl)
{
var clonedTable = new XElement(W.tbl,
element.Elements(W.tr).Select(n =>
CloneBlockLevelContentForHashing(mainDocumentPart, n, includeRelatedParts, settings)));
return(clonedTable);
}
if (element.Name == W.tr)
{
var clonedRow = new XElement(W.tr,
element.Elements(W.tc).Select(n =>
CloneBlockLevelContentForHashing(mainDocumentPart, n, includeRelatedParts, settings)));
return(clonedRow);
}
if (element.Name == W.tc)
{
var clonedCell = new XElement(W.tc,
element.Elements().Select(n =>
CloneBlockLevelContentForHashing(mainDocumentPart, n, includeRelatedParts, settings)));
return(clonedCell);
}
if (element.Name == W.tcPr)
{
var clonedCellProps = new XElement(W.tcPr,
element.Elements(W.gridSpan).Select(n =>
CloneBlockLevelContentForHashing(mainDocumentPart, n, includeRelatedParts, settings)));
return(clonedCellProps);
}
if (element.Name == W.gridSpan)
{
var clonedGridSpan = new XElement(W.gridSpan,
new XAttribute("val", (string)element.Attribute(W.val)));
return(clonedGridSpan);
}
if (element.Name == W.txbxContent)
{
var clonedTextbox = new XElement(W.txbxContent,
element.Elements().Select(n =>
CloneBlockLevelContentForHashing(mainDocumentPart, n, includeRelatedParts, settings)));
return(clonedTextbox);
}
if (includeRelatedParts)
{
if (ComparisonUnitWord.ElementsWithRelationshipIds.Contains(element.Name))
{
var newElement = new XElement(element.Name,
element.Attributes()
.Where(a => a.Name.Namespace != PtOpenXml.pt)
.Where(a => !AttributesToTrimWhenCloning.Contains(a.Name))
.Select(a =>
{
if (!ComparisonUnitWord.RelationshipAttributeNames.Contains(a.Name))
{
return(a);
}
var rId = (string)a;
// could be an hyperlink relationship
try
{
OpenXmlPart oxp = mainDocumentPart.GetPartById(rId);
if (oxp == null)
{
throw new FileFormatException("Invalid WordprocessingML Document");
}
var anno = oxp.Annotation <PartSHA1HashAnnotation>();
if (anno != null)
{
return(new XAttribute(a.Name, anno.Hash));
}
if (!oxp.ContentType.EndsWith("xml"))
{
using (Stream str = oxp.GetStream())
{
byte[] ba;
using (var br = new BinaryReader(str))
{
ba = br.ReadBytes((int)str.Length);
}
string sha1 = WmlComparerUtil.SHA1HashStringForByteArray(ba);
oxp.AddAnnotation(new PartSHA1HashAnnotation(sha1));
return(new XAttribute(a.Name, sha1));
}
}
}
catch (ArgumentOutOfRangeException)
{
HyperlinkRelationship hr =
mainDocumentPart.HyperlinkRelationships.FirstOrDefault(z => z.Id == rId);
if (hr != null)
{
string str = hr.Uri.ToString();
return(new XAttribute(a.Name, str));
}
// could be an external relationship
ExternalRelationship er =
mainDocumentPart.ExternalRelationships.FirstOrDefault(z => z.Id == rId);
if (er != null)
{
string str = er.Uri.ToString();
return(new XAttribute(a.Name, str));
}
return(new XAttribute(a.Name, "NULL Relationship"));
}
return(null);
}),
element.Nodes().Select(n =>
CloneBlockLevelContentForHashing(mainDocumentPart, n, includeRelatedParts, settings)));
return(newElement);
}
}
if (element.Name == VML.shape)
{
return(new XElement(element.Name,
element.Attributes()
.Where(a => a.Name.Namespace != PtOpenXml.pt)
.Where(a => a.Name != "style" && a.Name != "id" && a.Name != "type"),
element.Nodes().Select(n =>
CloneBlockLevelContentForHashing(mainDocumentPart, n, includeRelatedParts, settings))));
}
if (element.Name == O.OLEObject)
{
var o = new XElement(element.Name,
element.Attributes()
.Where(a => a.Name.Namespace != PtOpenXml.pt)
.Where(a => a.Name != "ObjectID" && a.Name != R.id),
element.Nodes().Select(n =>
CloneBlockLevelContentForHashing(mainDocumentPart, n, includeRelatedParts, settings)));
return(o);
}
if (element.Name == W._object)
{
var o = new XElement(element.Name,
element.Attributes()
.Where(a => a.Name.Namespace != PtOpenXml.pt),
element.Nodes().Select(n =>
CloneBlockLevelContentForHashing(mainDocumentPart, n, includeRelatedParts, settings)));
return(o);
}
if (element.Name == WP.docPr)
{
return(new XElement(element.Name,
element.Attributes()
.Where(a => a.Name.Namespace != PtOpenXml.pt && a.Name != "id"),
element.Nodes().Select(n =>
CloneBlockLevelContentForHashing(mainDocumentPart, n, includeRelatedParts, settings))));
}
return(new XElement(element.Name,
element.Attributes()
.Where(a => a.Name.Namespace != PtOpenXml.pt)
.Where(a => !AttributesToTrimWhenCloning.Contains(a.Name)),
element.Nodes().Select(n =>
CloneBlockLevelContentForHashing(mainDocumentPart, n, includeRelatedParts, settings))));
}
if (settings.CaseInsensitive)
{
if (node is XText xt)
{
string newText = xt.Value.ToUpper(settings.CultureInfo);
return(new XText(newText));
}
}
return(node);
}
