public static bool PostAttachments(Outlook.MailItem item, Account account, EcsConfiguration configuration,
string encryptKey, string recips, ref List<string> pointers, OutlookWin32Window win, bool noPlaceholder)
{
const string SOURCE = CLASS_NAME + "PostAttachments";
try
{
//get the bytes for the placeholder text
var placeholder = Encoding.UTF8.GetBytes(Resources.placeholder_text);
SafeMailItem safMail;
try
{
safMail = RedemptionLoader.new_SafeMailItem();
}
catch (Exception ex)
{
Logger.Error(SOURCE, String.Format(
"unable to work with attachments for {0}, failed to instantiate SafeMailItem: {1}",
item.Subject, ex.Message));
return false;
}
//need to save the item first before we can work with the SafeMailItem
item.Save();
safMail.Item = item;
var colAttach = safMail.Attachments;
/* Outlook will move any embedded images to the head of the attachments table
* if that's the case then we need to remove and re-add the other attachments
* so that the pointer list will match the finished order
*/
var hidden = false;
string contentId;
var savedAttach = new Dictionary<int, byte[]>();
//do we have any embedded images?
foreach (Redemption.Attachment rdoAttach in colAttach)
{
GetAttachProps(rdoAttach, out contentId, out hidden);
if (hidden) break;
}
if (hidden)
{
//walk through in reverse order
//delete and reattach each non-hidden attachment
for (var i = colAttach.Count; i > 0; i--)
{
Redemption.Attachment rdoAttach = colAttach[i];
GetAttachProps(rdoAttach, out contentId, out hidden);
if (hidden) continue;
if (rdoAttach.Type.Equals(5)) //embedded
{
var msg = rdoAttach.EmbeddedMsg;
rdoAttach.Delete();
colAttach.Add(msg, 5);
}
else
{
var path = Path.Combine(Path.GetTempPath(), "ChiaraMail", rdoAttach.FileName);
var displayName = rdoAttach.DisplayName;
if (File.Exists(path)) File.Delete(path);
rdoAttach.SaveAsFile(path);
rdoAttach.Delete();
rdoAttach = colAttach.Add(path, 1, Type.Missing, displayName);
//get the bytes and drop those in the dictionary, linked to the current index
savedAttach.Add(rdoAttach.Index, File.ReadAllBytes(path));
File.Delete(path);
}
}
}
//now loop through and collect the content (except for embedded messages)
var attachList = new List<Attachment>();
bool showForm = false;
foreach (Redemption.Attachment rdoAttach in colAttach)
{
var attach = new Attachment { Type = rdoAttach.Type };
switch (rdoAttach.Type)
{
case (int)Outlook.OlAttachmentType.olEmbeddeditem:
//is this an ECS attachment?
var msg = rdoAttach.EmbeddedMsg;
if (HasChiaraHeader(msg))
{
ForwardEmbeddedECS(msg, recips, account);
}
//always add
attachList.Add(attach);
break;
case (int)Outlook.OlAttachmentType.olByReference:
case (int)Outlook.OlAttachmentType.olOLE:
attachList.Add(attach);
break;
case (int)Outlook.OlAttachmentType.olByValue:
showForm = true;
//we may have already gotten the bytes
if (savedAttach.Count > 0 && savedAttach.ContainsKey(rdoAttach.Index))
{
attach.Content = savedAttach[rdoAttach.Index];
}
if (attach.Content == null || attach.Content.Length == 0)
{
//try just read the bytes from the binary property
//this could fail if the attachment is too big
try
{
attach.Content = rdoAttach.AsArray != null
? rdoAttach.AsArray as byte[]
: null;//.Fields[ThisAddIn.PR_ATTACH_DATA_BIN]);
}
catch
{
attach.Content = null;
}
}
if (attach.Content == null)
{
//save to disk then get the bytes
var path = Path.Combine(Path.GetTempPath(), "ChiaraMail", rdoAttach.FileName);
if (File.Exists(path)) File.Delete(path);
rdoAttach.SaveAsFile(path);
attach.Content = File.ReadAllBytes(path);
File.Delete(path);
}
if (attach.Content != null)
{
attach.Index = rdoAttach.Index;
attach.Name = rdoAttach.DisplayName;
attachList.Add(attach);
}
else
{
Logger.Warning(SOURCE,
"aborting: failed to retrieve content for " + rdoAttach.DisplayName);
MessageBox.Show(String.Format(
"Unable to retrieve original content from {0}",
rdoAttach.DisplayName), Resources.product_name,
MessageBoxButtons.OK,
MessageBoxIcon.Error);
return false;
}
break;
}
}
if (!showForm)
{
pointers.AddRange(attachList.Select(attach => attach.Pointer));
return true;
}
//use the WaitForm to upload the attachments
var form = new WaitForm
{
Attachments = attachList,
Account = account,
Configuration = configuration,
Recips = recips,
EncryptKey2 = encryptKey
};
//use encryptKey2 for new post
if (form.ShowDialog(win) == DialogResult.OK)
{
//post succeeded for all attachments
//get the pointers
pointers.AddRange(form.Attachments.Select(attach => attach.Pointer));
//don't replace attachment bytes if we are sending content
if (noPlaceholder) return true;
//loop back through to replace the original content with the placeholder bytes
foreach (Redemption.Attachment rdoAttach in colAttach)
{
if (rdoAttach.Type.Equals(1)) //OlAttachmentType.olByValue)
{
rdoAttach.Fields[ThisAddIn.PR_ATTACH_DATA_BIN] = placeholder;
}
}
return true;
}
//get the pointer list anyway so we can delete the items that got posted
pointers.AddRange(form.Attachments
.TakeWhile(attach => !String.IsNullOrEmpty(attach.Pointer))
.Select(attach => attach.Pointer));
}
catch (Exception ex)
{
Logger.Error(SOURCE, ex.ToString());
}
return false;
}
private List<Attachment> FetchParentAttachContent(MailItem parent, IList<string> pointers,
string key, Account account, EcsConfiguration configuration, string senderAddress,
string serverName, string serverPort, string encryptKey, string encryptKey2)
{
const string SOURCE = CLASS_NAME + "FetchParentAttachContent";
var attachList = new List<Attachment>();
try
{
var attachments = parent.Attachments;
if (pointers.Count > 1 && attachments.Count > 0)
{
//we need the dynamic content for each attachment
var parentPath = Path.Combine(Path.GetTempPath(),
"ChiaraMail", key);
MAPIUtils mapiUtils;
try
{
mapiUtils = RedemptionLoader.new_MAPIUtils();
}
catch (Exception ex)
{
Logger.Warning(SOURCE, string.Format(
"unable to fetch ECS-enabled content for attachments on {0} - error loading MAPIUtils: {1}",
parent.Subject, ex.Message));
return null;
}
for (var i = 1; i < attachments.Count + 1; i++)
{
var attach = attachments[i];
var cmAttach = new Attachment
{
Index = i,
Pointer = pointers[i],
Name = attach.DisplayName,
Type = (int)attach.Type
};
//only check ByValue - embedded message isn't stored on server
if (attach.Type == OlAttachmentType.olByValue)
{
//check for content-id on hidden attachment
var contentId = string.Empty;
try
{
var prop = mapiUtils.HrGetOneProp(attach, (int) MAPITags.PR_ATTACHMENT_HIDDEN);
if (prop != null && Convert.ToBoolean(prop))
{
prop = mapiUtils.HrGetOneProp(attach, PR_ATTACH_CONTENT_ID);
if (prop != null) contentId = Convert.ToString(prop);
}
}
catch
{
contentId = "";
}
string attachPath;
if (!string.IsNullOrEmpty(contentId))
{
attachPath = Path.Combine(parentPath, contentId);
cmAttach.ContentId = contentId;
}
else
{
attachPath = Path.Combine(parentPath, Convert.ToString(i), attach.DisplayName);
}
if (File.Exists(attachPath))
{
//load the bytes
cmAttach.Content = File.ReadAllBytes(attachPath);
}
else
{
//fetch it
string error;
string content;
ContentHandler.FetchContent(account.SMTPAddress, configuration,
senderAddress, pointers[i], serverName, serverPort, true,
out content, out error);
if (!string.IsNullOrEmpty(error) &&
!error.Equals("Success",StringComparison.CurrentCultureIgnoreCase))
{
Logger.Warning(SOURCE, string.Format(
"failed to retrieve content for attachment {0} on item from sender {1}",
i, senderAddress));
continue;
}
cmAttach.Content = ContentHandler.GetAttachBytes(
content, encryptKey, encryptKey2);
}
}
attachList.Add(cmAttach);
}
}
}
catch (Exception ex)
{
Logger.Error(SOURCE, ex.ToString());
}
return attachList;
}
internal static void LoadAttachments(Outlook.MailItem item, string[] pointers,string baseUrl,
Account account, string senderAddress, string serverName, string serverPort,
string encryptKey, string encryptKey2, List<string> EmbeddedFileNames,
ref Dictionary<string,Attachment> attachList,
ref Dictionary<string, Redemption.Attachment> embedded,
ref Panel panelAttach, ref int upperWidth, ref int upperHeight)
{
const string SOURCE = CLASS_NAME + "LoadAttachments";
SafeMailItem safMail;
try
{
safMail = RedemptionLoader.new_SafeMailItem();
}
catch (Exception ex)
{
Logger.Warning(SOURCE,string.Format(
"unable to load attachments for {0}, error instantiating SafeMailItem: {1}",
item.Subject,ex.Message));
return;
}
safMail.Item = item;
var safAttachments = safMail.Attachments;
var index = 0;
foreach (Redemption.Attachment safAttach in safAttachments)
{
index++;
var attach = new Attachment
{
Index = index,
Name = safAttach.DisplayName
};
if (EmbeddedFileNames.Contains(safAttach.DisplayName)) continue;
var btn = new AttachPanel
{
Caption = safAttach.DisplayName
};
switch (safAttach.Type)
{
case 1: //byvalue
if (string.IsNullOrEmpty(pointers[index])) continue;
//is it hidden or have contentId
string contentId;
bool hidden;
GetAttachProps(safAttach, out contentId, out hidden);
if (hidden)
{
continue;
}
attach.Pointer = pointers[index];
//get the image
var container = ShellIcons.GetIconForFile(
attach.Name, true, false);
btn.Picture = container.Icon.ToBitmap();
btn.Pointer = attach.Pointer;
attachList.Add(attach.Pointer, attach);
break;
case 5: //embedded - will have null/0 pointer
btn.Pointer = "embedded:" + index.ToString(CultureInfo.InvariantCulture);
embedded.Add(btn.Pointer, safAttach);
//use default envelope picture for button
break;
}
panelAttach.Controls.Add(btn);
if (btn.Width > upperWidth) upperWidth = btn.Width;
if (btn.Height > upperHeight) upperHeight = btn.Height;
}
}
