108 lines
4.5 KiB
C#
108 lines
4.5 KiB
C#
using System;
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using System.Collections.Generic;
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using System.Text;
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using MailServer.Misc.IO;
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namespace MailServer.Misc.MIME
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{
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/// <summary>
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/// This class represent MIME entity body provider.
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/// </summary>
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public class MIME_b_Provider
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{
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private Dictionary<string,Type> m_pBodyTypes = null;
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/// <summary>
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/// Default constructor.
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/// </summary>
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public MIME_b_Provider()
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{
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m_pBodyTypes = new Dictionary<string,Type>(StringComparer.CurrentCultureIgnoreCase);
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m_pBodyTypes.Add("message/rfc822",typeof(MIME_b_MessageRfc822));
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m_pBodyTypes.Add("message/delivery-status",typeof(MIME_b_MessageDeliveryStatus));
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m_pBodyTypes.Add("multipart/alternative",typeof(MIME_b_MultipartAlternative));
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m_pBodyTypes.Add("multipart/digest",typeof(MIME_b_MultipartDigest));
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m_pBodyTypes.Add("multipart/encrypted",typeof(MIME_b_MultipartEncrypted));
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m_pBodyTypes.Add("multipart/form-data",typeof(MIME_b_MultipartFormData));
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m_pBodyTypes.Add("multipart/mixed",typeof(MIME_b_MultipartMixed));
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m_pBodyTypes.Add("multipart/parallel",typeof(MIME_b_MultipartParallel));
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m_pBodyTypes.Add("multipart/related",typeof(MIME_b_MultipartRelated));
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m_pBodyTypes.Add("multipart/report",typeof(MIME_b_MultipartReport));
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m_pBodyTypes.Add("multipart/signed",typeof(MIME_b_MultipartSigned));
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}
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#region method Parse
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/// <summary>
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/// Parses MIME entity body from specified stream.
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/// </summary>
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/// <param name="owner">Owner MIME entity.</param>
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/// <param name="stream">Stream from where to parse entity body.</param>
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/// <param name="defaultContentType">Default content type.</param>
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/// <returns>Returns parsed body.</returns>
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/// <exception cref="ArgumentNullException">Is raised when <b>owner</b>, <b>strean</b> or <b>defaultContentType</b> is null reference.</exception>
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/// <exception cref="ParseException">Is raised when header field parsing errors.</exception>
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public MIME_b Parse(MIME_Entity owner,SmartStream stream,MIME_h_ContentType defaultContentType)
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{
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if(owner == null){
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throw new ArgumentNullException("owner");
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}
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if(stream == null){
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throw new ArgumentNullException("stream");
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}
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if(defaultContentType == null){
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throw new ArgumentNullException("defaultContentType");
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}
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string mediaType = defaultContentType.TypeWithSubype;
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if(owner.ContentType != null){
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mediaType = owner.ContentType.TypeWithSubype;
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}
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Type bodyType = null;
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// We have exact body provider for specified mediaType.
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if(m_pBodyTypes.ContainsKey(mediaType)){
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bodyType = m_pBodyTypes[mediaType];
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}
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// Use default mediaType.
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else{
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// Registered list of mediaTypes are available: http://www.iana.org/assignments/media-types/.
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string mediaRootType = mediaType.Split('/')[0].ToLowerInvariant();
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if(mediaRootType == "application"){
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bodyType = typeof(MIME_b_Application);
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}
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else if(mediaRootType == "audio"){
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bodyType = typeof(MIME_b_Audio);
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}
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else if(mediaRootType == "image"){
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bodyType = typeof(MIME_b_Image);
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}
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else if(mediaRootType == "message"){
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bodyType = typeof(MIME_b_Message);
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}
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else if(mediaRootType == "multipart"){
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bodyType = typeof(MIME_b_Multipart);
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}
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else if(mediaRootType == "text"){
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bodyType = typeof(MIME_b_Text);
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}
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else if(mediaRootType == "video"){
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bodyType = typeof(MIME_b_Video);
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}
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else{
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bodyType = typeof(MIME_b_Unknown);
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}
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}
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return (MIME_b)bodyType.GetMethod("Parse",System.Reflection.BindingFlags.Static | System.Reflection.BindingFlags.NonPublic | System.Reflection.BindingFlags.FlattenHierarchy).Invoke(null,new object[]{owner,defaultContentType,stream});
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}
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#endregion
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}
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}
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