private void ParseMessage(SharpMimeMessage part, MimeTopLevelMediaType types, bool html, SharpDecodeOptions options, String preferredtextsubtype, String path) { if ((types & part.Header.TopLevelMediaType) != part.Header.TopLevelMediaType) { return; } switch (part.Header.TopLevelMediaType) { case MimeTopLevelMediaType.multipart: case MimeTopLevelMediaType.message: // TODO: allow other subtypes of "message" if (part.Header.TopLevelMediaType.Equals(MimeTopLevelMediaType.message)) { // Only message/rfc822 allowed, other subtypes ignored if (part.Header.SubType == "rfc822") { // If NotRecursiveRfc822 option is set, handle part as an attachment if ((options & SharpDecodeOptions.NotRecursiveRfc822) == SharpDecodeOptions.NotRecursiveRfc822) { goto case anmar.SharpMimeTools.MimeTopLevelMediaType.application; } } else { break; } } if (part.Header.SubType.Equals("alternative") && part.PartsCount > 0) { SharpMimeMessage altenative = null; // Get the first mime part of the alternatives that has a accepted Mime-Type for (int i = part.PartsCount; i > 0; i--) { SharpMimeMessage item = part.GetPart(i - 1); if ((types & part.Header.TopLevelMediaType) != part.Header.TopLevelMediaType || (!html && item.Header.TopLevelMediaType.Equals(MimeTopLevelMediaType.text) && item.Header.SubType.Equals("html")) ) { continue; } // First allowed one. if (altenative == null) { altenative = item; // We don't have to select body part based on subtype if not asked for, or not a text one // or it's already the preferred one if (preferredtextsubtype == null || item.Header.TopLevelMediaType != MimeTopLevelMediaType.text || (preferredtextsubtype != null && item.Header.SubType == preferredtextsubtype)) { break; } // This one is preferred over the last part } else if (preferredtextsubtype != null && item.Header.TopLevelMediaType == MimeTopLevelMediaType.text && item.Header.SubType == preferredtextsubtype) { altenative = item; break; } } if (altenative != null) { // If message body as html is allowed and part has a Content-ID field // add an anchor to mark this body part if (html && part.Header.Contains("Content-ID") && (options & SharpDecodeOptions.NamedAnchors) == SharpDecodeOptions.NamedAnchors) { // There is a previous text body, so enclose it in <pre> if (!HasHtmlBody && _body.Length > 0) { _body = String.Concat("<pre>", HttpUtility.HtmlEncode(_body), "</pre>"); HasHtmlBody = true; } // Add the anchor _body = String.Concat(_body, "<a name=\"", SharpMimeTools.Rfc2392Url(MessageID), "_", SharpMimeTools.Rfc2392Url(part.Header.ContentID), "\"></a>"); } ParseMessage(altenative, types, html, options, preferredtextsubtype, path); } // TODO: Take into account each subtype of "multipart" and "message" } else if (part.PartsCount > 0) { foreach (SharpMimeMessage item in part) { ParseMessage(item, types, html, options, preferredtextsubtype, path); } } break; case MimeTopLevelMediaType.text: if ((part.Disposition == null || !part.Disposition.Equals("attachment")) && (part.Header.SubType.Equals("plain") || part.Header.SubType.Equals("html"))) { bool body_was_html = HasHtmlBody; // HTML content not allowed if (part.Header.SubType.Equals("html")) { if (!html) break; else HasHtmlBody = true; } if (html && part.Header.Contains("Content-ID") && (options & SharpDecodeOptions.NamedAnchors) == SharpDecodeOptions.NamedAnchors) { HasHtmlBody = true; } if (HasHtmlBody && !body_was_html && !String.IsNullOrEmpty(_body)) { _body = String.Concat("<pre>", HttpUtility.HtmlEncode(_body), "</pre>"); } // If message body is html and this part has a Content-ID field // add an anchor to mark this body part if (HasHtmlBody && part.Header.Contains("Content-ID") && (options & SharpDecodeOptions.NamedAnchors) == SharpDecodeOptions.NamedAnchors) { _body = String.Concat(_body, "<a name=\"", SharpMimeTools.Rfc2392Url(MessageID), "_", SharpMimeTools.Rfc2392Url(part.Header.ContentID), "\"></a>"); } if (HasHtmlBody && part.Header.SubType.Equals("plain")) { _body = String.Concat(_body, "<pre>", HttpUtility.HtmlEncode(part.BodyDecoded), "</pre>"); } else _body = String.Concat(_body, part.BodyDecoded); } else { if ((types & MimeTopLevelMediaType.application) != MimeTopLevelMediaType.application) { return; } goto case anmar.SharpMimeTools.MimeTopLevelMediaType.application; } break; case MimeTopLevelMediaType.application: case MimeTopLevelMediaType.audio: case MimeTopLevelMediaType.image: case MimeTopLevelMediaType.video: // Attachments not allowed. if ((options & SharpDecodeOptions.AllowAttachments) != SharpDecodeOptions.AllowAttachments) break; SharpAttachment attachment = null; // Save to a file if (path != null) { FileInfo file = part.DumpBody(path, true); if (file != null) { attachment = new SharpAttachment(file); attachment.Name = file.Name; attachment.Size = file.Length; } // Save to a stream } else { using (MemoryStream stream = new MemoryStream()) { if (part.DumpBody(stream)) { if (stream != null && stream.CanSeek) stream.Seek(0, SeekOrigin.Begin); attachment = new SharpAttachment(stream); if (part.Name != null) attachment.Name = part.Name; else attachment.Name = String.Concat("generated_", part.GetHashCode(), ".", part.Header.SubType); attachment.Size = stream.Length; } } } if (attachment != null && part.Header.SubType == "ms-tnef" && (options & SharpDecodeOptions.DecodeTnef) == SharpDecodeOptions.DecodeTnef) { // Try getting attachments form a tnef stream Stream stream = attachment.Stream; SharpTnefMessage tnef = new SharpTnefMessage(stream); if (tnef.Parse(path)) { if (tnef.Attachments != null) { Attachments.AddRange(tnef.Attachments); } attachment.Close(); // Delete the raw tnef file if (attachment.SavedFile != null) { if (stream != null && stream.CanRead) { stream.Close(); stream = null; } attachment.SavedFile.Delete(); } attachment = null; tnef.Close(); } else { // The read-only stream is no longer needed and locks the file if (attachment.SavedFile != null && stream != null && stream.CanRead) { stream.Close(); stream = null; } } stream = null; tnef = null; } if (attachment != null) { if (part.Disposition != null && part.Disposition == "inline") { attachment.Inline = true; } attachment.MimeTopLevelMediaType = part.Header.TopLevelMediaType; attachment.MimeMediaSubType = part.Header.SubType; // Store attachment's CreationTime if (part.Header.ContentDispositionParameters.ContainsKey("creation-date")) attachment.CreationTime = SharpMimeTools.parseDate(part.Header.ContentDispositionParameters["creation-date"]); // Store attachment's LastWriteTime if (part.Header.ContentDispositionParameters.ContainsKey("modification-date")) attachment.LastWriteTime = SharpMimeTools.parseDate(part.Header.ContentDispositionParameters["modification-date"]); if (part.Header.Contains("Content-ID")) attachment.ContentID = part.Header.ContentID; Attachments.Add(attachment); } break; default: break; } }
/////////////////////////////////////////////////////////////////////// public static void add_attachment(string filename, SharpMimeMessage part, int bugid, int parent_postid, Security security) { Util.write_to_log("attachment:" + filename); string missing_attachment_msg = ""; int max_upload_size = Convert.ToInt32(Util.get_setting("MaxUploadSize", "100000")); if (part.Size > max_upload_size) { missing_attachment_msg = "ERROR: email attachment exceeds size limit."; } string content_type = part.Header.TopLevelMediaType + "/" + part.Header.SubType; string desc; MemoryStream attachmentStream = new MemoryStream(); if (missing_attachment_msg == "") { desc = "email attachment"; } else { desc = missing_attachment_msg; } part.DumpBody(attachmentStream); attachmentStream.Position = 0; Bug.insert_post_attachment( security, bugid, attachmentStream, (int)attachmentStream.Length, filename, desc, content_type, parent_postid, false, // not hidden false); // don't send notifications }