internal static ReadOnlyCollection <AttachmentLink> MergeAttachmentLinks(IList <AttachmentLink> existingLinks, CoreAttachmentCollection attachments)
{
IList <AttachmentLink> list;
if (attachments != null)
{
list = ((existingLinks == null) ? new List <AttachmentLink>(attachments.Count) : new List <AttachmentLink>(existingLinks));
ICollection <PropertyDefinition> preloadProperties = new PropertyDefinition[]
{
AttachmentSchema.AttachContentId
};
using (IEnumerator <AttachmentHandle> enumerator = attachments.GetEnumerator())
{
while (enumerator.MoveNext())
{
AttachmentHandle handle = enumerator.Current;
using (CoreAttachment coreAttachment = attachments.Open(handle, preloadProperties))
{
using (Attachment attachment = AttachmentCollection.CreateTypedAttachment(coreAttachment, null))
{
if (AttachmentLink.Find(attachment.Id, list) == null)
{
AttachmentLink item = new AttachmentLink(attachment);
list.Add(item);
}
}
}
}
goto IL_C5;
}
}
list = ((existingLinks == null) ? new List <AttachmentLink>(0) : new List <AttachmentLink>(existingLinks));
IL_C5:
return(new ReadOnlyCollection <AttachmentLink>(list));
}
private string GetOrGenerateAttachContentId(AttachmentLink link)
{
string text = link.ContentId;
if (string.IsNullOrEmpty(text))
{
text = AttachmentLink.CreateContentId(this.AttachmentCollection.ContainerItem, link.AttachmentId, this.contentIdDomain);
link.ContentId = text;
}
return(text);
}
public override bool ProcessImage(string imageUrl, int approximateRenderingPosition)
{
AttachmentLink attachmentLink = base.FindAttachmentByBodyReference(imageUrl);
if (attachmentLink == null)
{
return(false);
}
attachmentLink.RenderingPosition = approximateRenderingPosition;
attachmentLink.IsHidden = false;
attachmentLink.MarkInline(true);
return(true);
}
internal static ReadOnlyCollection <AttachmentLink> ItemToICal(Item item, ReadOnlyCollection <AttachmentLink> existingAttachmentLinks, OutboundAddressCache addressCache, Stream stream, string charsetName, OutboundConversionOptions outboundConversionOptions)
{
ReadOnlyCollection <AttachmentLink> readOnlyCollection = AttachmentLink.MergeAttachmentLinks(existingAttachmentLinks, item.AttachmentCollection.CoreAttachmentCollection);
foreach (AttachmentLink attachmentLink in readOnlyCollection)
{
if (string.IsNullOrEmpty(attachmentLink.ContentId))
{
attachmentLink.ContentId = AttachmentLink.CreateContentId(item.CoreItem, attachmentLink.AttachmentId, outboundConversionOptions.ImceaEncapsulationDomain);
}
}
return(CalendarDocument.InternalItemsToICal(null, new Item[]
{
item
}, readOnlyCollection, addressCache, false, stream, new List <LocalizedString>(), charsetName, outboundConversionOptions));
}
internal AttachmentLink(Attachment attachment)
{
this.attachmentType = attachment.AttachmentType;
this.attachmentId = attachment.Id;
this.contentId = attachment.ContentId;
this.contentBase = attachment.ContentBase;
this.contentLocation = attachment.ContentLocation;
this.filename = attachment.FileName;
this.displayName = attachment.DisplayName;
this.size = attachment.Size;
this.originalIsInline = attachment.IsInline;
this.markedInline = null;
this.contentType = AttachmentLink.GetContentType(attachment);
this.renderingPosition = attachment.GetValueOrDefault <int>(InternalSchema.RenderingPosition, -1);
this.isHidden = attachment.GetValueOrDefault <bool>(InternalSchema.AttachCalendarHidden);
this.isChanged = false;
}
public override void ProcessTag(HtmlTagContext tagContext, HtmlWriter htmlWriter)
{
if (tagContext.TagId != HtmlTagId.Img)
{
tagContext.WriteTag(true);
return;
}
AttachmentLink attachmentLink = null;
string text = null;
foreach (HtmlTagContextAttribute htmlTagContextAttribute in tagContext.Attributes)
{
if (htmlTagContextAttribute.Id == HtmlAttributeId.Src)
{
text = htmlTagContextAttribute.Value;
break;
}
}
if (!string.IsNullOrEmpty(text))
{
attachmentLink = base.FindAttachmentByBodyReference(text);
}
if (attachmentLink == null)
{
if (!this.clearEmptyLinks || !DefaultHtmlCallbacks.IsEmptyLink(text))
{
tagContext.WriteTag(true);
}
return;
}
string text2;
string text3;
if (attachmentLink.AttachmentType == AttachmentType.Ole)
{
text2 = "image/jpeg";
text3 = "jpg";
attachmentLink.ConvertToImage();
}
else
{
text2 = attachmentLink.ContentType;
text3 = attachmentLink.FileExtension;
}
bool flag = text.StartsWith("cid:Microsoft-Infopath-", StringComparison.OrdinalIgnoreCase) && string.IsNullOrEmpty(text3) && !string.IsNullOrEmpty(text2) && text2.Equals("application/octet-stream");
if (DefaultHtmlCallbacks.IsInlineImage(text2, text3) || flag)
{
tagContext.WriteTag(false);
foreach (HtmlTagContextAttribute htmlTagContextAttribute2 in tagContext.Attributes)
{
if (htmlTagContextAttribute2.Id == HtmlAttributeId.Src)
{
string value = "cid:" + this.GetOrGenerateAttachContentId(attachmentLink);
htmlWriter.WriteAttribute(HtmlAttributeId.Src, value);
}
else
{
htmlTagContextAttribute2.Write();
}
}
attachmentLink.MarkInline(true);
return;
}
if (!this.RemoveLinksToNonImageAttachments)
{
string text4 = attachmentLink.Filename;
if (text4 == null)
{
text4 = ServerStrings.DefaultHtmlAttachmentHrefText;
}
htmlWriter.WriteStartTag(HtmlTagId.A);
htmlWriter.WriteAttribute(HtmlAttributeId.Href, "cid:" + this.GetOrGenerateAttachContentId(attachmentLink));
htmlWriter.WriteText(text4);
htmlWriter.WriteEndTag(HtmlTagId.A);
attachmentLink.MarkInline(false);
}
}
public ReadOnlyCollection <AttachmentLink> InitializeAttachmentLinks(IList <AttachmentLink> linksToMerge)
{
this.attachmentLinks = AttachmentLink.MergeAttachmentLinks(linksToMerge, this.AttachmentCollection);
return(this.attachmentLinks);
}
private AttachmentLink InternalFindByBodyReference(string bodyReference, Uri baseUri)
{
Uri uri;
if (!Uri.TryCreate(bodyReference, UriKind.RelativeOrAbsolute, out uri))
{
ExTraceGlobals.StorageTracer.TraceError <string>((long)this.GetHashCode(), "BodyConversionCallbacksBase.InternalFindId: bodyReference not a valid URI\r\n'{0}'", bodyReference);
return(null);
}
if (!uri.IsWellFormedOriginalString())
{
ExTraceGlobals.StorageTracer.TraceError <string>((long)this.GetHashCode(), "BodyConversionCallbacksBase.InternalFindId: bodyReference not a valid URI\r\n'{0}'", bodyReference);
return(null);
}
if (uri.IsAbsoluteUri && uri.Scheme == "cid")
{
using (IEnumerator <AttachmentLink> enumerator = this.AttachmentLinks.GetEnumerator())
{
while (enumerator.MoveNext())
{
AttachmentLink attachmentLink = enumerator.Current;
AttachmentId attachmentId = attachmentLink.AttachmentId;
string text;
if (string.Equals(uri.LocalPath, attachmentLink.ContentId, StringComparison.OrdinalIgnoreCase))
{
text = attachmentLink.ContentId;
}
else if (string.Equals(uri.LocalPath, attachmentLink.Filename, StringComparison.OrdinalIgnoreCase))
{
text = attachmentLink.Filename;
}
else
{
if (!string.Equals(uri.LocalPath, attachmentLink.DisplayName, StringComparison.OrdinalIgnoreCase))
{
continue;
}
text = attachmentLink.DisplayName;
}
Uri contentLocation;
if (!Uri.TryCreate("cid:" + text, UriKind.RelativeOrAbsolute, out contentLocation))
{
ExTraceGlobals.StorageTracer.TraceError <string, AttachmentId>((long)this.GetHashCode(), "BodyConversionCallbacksBase.InternalFindId: attachmentContentKey[{1}] not a valid URI\r\n'{0}'", text, attachmentId);
return(null);
}
if (!contentLocation.IsWellFormedOriginalString())
{
ExTraceGlobals.StorageTracer.TraceError <string, AttachmentId>((long)this.GetHashCode(), "BodyConversionCallbacksBase.InternalFindId: attachmentContentKey[{1}] not a valid URI\r\n'{0}'", text, attachmentId);
return(null);
}
return(attachmentLink);
}
goto IL_2A1;
}
}
if (uri.IsAbsoluteUri && uri.Scheme == "objattph")
{
if (this.attachmentsByPositionEnumerator == null)
{
this.CreateAttachmentsByPositionEnumerator();
}
if (this.attachmentsByPositionEnumerator.MoveNext())
{
KeyValuePair <int, AttachmentLink> keyValuePair = this.attachmentsByPositionEnumerator.Current;
return(keyValuePair.Value);
}
return(null);
}
else
{
Uri uri2;
if (uri.IsAbsoluteUri)
{
uri2 = uri;
}
else if (baseUri != null)
{
if (!Uri.TryCreate(baseUri, uri, out uri2))
{
ExTraceGlobals.StorageTracer.TraceError <Uri, Uri>((long)this.GetHashCode(), "AttachmentCollection.InternalFindId: can't build absolute URI from bodyReference and base\r\n'{0}'\r\n'{1}'", uri, baseUri);
uri2 = uri;
}
}
else
{
uri2 = uri;
}
foreach (AttachmentLink attachmentLink2 in this.AttachmentLinks)
{
AttachmentId attachmentId2 = attachmentLink2.AttachmentId;
Uri contentLocation = attachmentLink2.ContentLocation;
Uri contentBase = attachmentLink2.ContentBase;
if (!(contentLocation == null))
{
Uri obj;
if (contentLocation.IsAbsoluteUri)
{
obj = contentLocation;
}
else if (contentBase != null)
{
if (!Uri.TryCreate(contentBase, contentLocation, out obj))
{
ExTraceGlobals.StorageTracer.TraceError <Uri, AttachmentId>((long)this.GetHashCode(), "AttachmentCollection.InternalFindId: attachContentLocation[{1}] not a valid URI\r\n'{0}'", contentLocation, attachmentId2);
obj = contentLocation;
}
}
else
{
obj = contentLocation;
}
try
{
if (uri2.Equals(obj))
{
return(attachmentLink2);
}
}
catch (UriFormatException)
{
}
}
}
}
IL_2A1:
return(null);
}
public virtual bool SaveChanges()
{
if (this.AttachmentCollection == null)
{
throw new InvalidOperationException("Target item not specified; callback cannot invoke attachment-specific methods");
}
bool result = false;
if (this.attachmentLinks != null)
{
using (IEnumerator <AttachmentLink> enumerator = this.attachmentLinks.GetEnumerator())
{
while (enumerator.MoveNext())
{
AttachmentLink attachmentLink = enumerator.Current;
using (CoreAttachment coreAttachment = this.AttachmentCollection.Open(attachmentLink.AttachmentId))
{
using (Attachment attachment = Microsoft.Exchange.Data.Storage.AttachmentCollection.CreateTypedAttachment(coreAttachment, null))
{
if (this.removeUnlinkedAttachments && !attachmentLink.IsInline(this.requireMarkInline) && attachment.IsInline)
{
attachment.Dispose();
this.AttachmentCollection.Remove(attachmentLink.AttachmentId);
}
else
{
if (attachmentLink.NeedsConversionToImage && attachment.AttachmentType == AttachmentType.Ole)
{
OleAttachment oleAttachment = attachment as OleAttachment;
if (oleAttachment == null)
{
continue;
}
using (Attachment attachment2 = oleAttachment.ConvertToImageAttachment(this.AttachmentCollection, ImageFormat.Jpeg))
{
result = true;
attachmentLink.MakeAttachmentChanges(attachment2, this.requireMarkInline);
attachment2.Save();
continue;
}
}
if (attachmentLink.MakeAttachmentChanges(attachment, this.requireMarkInline))
{
result = true;
attachment.Save();
}
}
}
}
}
return(result);
}
}
if (this.requireMarkInline)
{
List <AttachmentId> list = null;
foreach (AttachmentHandle handle in this.AttachmentCollection)
{
using (CoreAttachment coreAttachment2 = this.AttachmentCollection.Open(handle))
{
if (coreAttachment2.IsInline)
{
if (this.removeUnlinkedAttachments)
{
if (list == null)
{
list = new List <AttachmentId>();
}
list.Add(coreAttachment2.Id);
}
else
{
coreAttachment2.IsInline = false;
result = true;
coreAttachment2.Save();
}
}
}
}
if (list != null)
{
foreach (AttachmentId id in list)
{
this.AttachmentCollection.Remove(id);
}
}
}
return(result);
}
