| 1 | #Region "Microsoft.VisualBasic::3d1bbe2951d4f0384bac47ae53e926de, Microsoft.VisualBasic.Core\Net\MIME\MIME.vb" |
| 2 | |
| 3 | ' Author: |
| 4 | ' |
| 5 | ' asuka (amethyst.asuka@gcmodeller.org) |
| 6 | ' xie (genetics@smrucc.org) |
| 7 | ' xieguigang (xie.guigang@live.com) |
| 8 | ' |
| 9 | ' Copyright (c) 2018 GPL3 Licensed |
| 10 | ' |
| 11 | ' |
| 12 | ' GNU GENERAL PUBLIC LICENSE (GPL3) |
| 13 | ' |
| 14 | ' |
| 15 | ' This program is free software: you can redistribute it and/or modify |
| 16 | ' it under the terms of the GNU General Public License as published by |
| 17 | ' the Free Software Foundation, either version 3 of the License, or |
| 18 | ' (at your option) any later version. |
| 19 | ' |
| 20 | ' This program is distributed in the hope that it will be useful, |
| 21 | ' but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 22 | ' MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 23 | ' GNU General Public License for more details. |
| 24 | ' |
| 25 | ' You should have received a copy of the GNU General Public License |
| 26 | ' along with this program. If not, see <http://www.gnu.org/licenses/>. |
| 27 | |
| 28 | |
| 29 | |
| 30 | ' /********************************************************************************/ |
| 31 | |
| 32 | ' Summaries: |
| 33 | |
| 34 | ' Module MIME |
| 35 | ' |
| 36 | ' Properties: ContentTypes, SuffixTable, UnknownType |
| 37 | ' |
| 38 | ' Constructor: (+1 Overloads) Sub New |
| 39 | ' Function: __loadContents |
| 40 | ' |
| 41 | ' |
| 42 | ' /********************************************************************************/ |
| 43 | |
| 44 | #End Region |
| 45 | |
| 46 | Imports System.Runtime.CompilerServices |
| 47 | |
| 48 | Namespace Net.Protocols.ContentTypes |
| 49 | |
| 50 | ''' <summary> |
| 51 | ''' MIME stands for "Multipurpose Internet Mail Extensions. It's a way of identifying files on the Internet according to their nature and format. |
| 52 | ''' For example, using the ``Content-type`` header value defined in a HTTP response, the browser can open the file with the proper extension/plugin. |
| 53 | ''' (http://www.freeformatter.com/mime-types-list.html) |
| 54 | ''' </summary> |
| 55 | Public Module MIME |
| 56 | |
| 57 | ''' <summary> |
| 58 | ''' 枚举出所有已知的文件拓展名列表,Key全部都是小写的 (格式: ``.ext``) |
| 59 | ''' </summary> |
| 60 | ''' <returns></returns> |
| 61 | Public ReadOnly Property SuffixTable As IReadOnlyDictionary(Of String, ContentType) |
| 62 | ''' <summary> |
| 63 | ''' 根据类型来枚举,Key全部都是小写的 |
| 64 | ''' </summary> |
| 65 | ''' <returns></returns> |
| 66 | Public ReadOnly Property ContentTypes As IReadOnlyDictionary(Of String, ContentType) |
| 67 | |
| 68 | ''' <summary> |
| 69 | ''' .*( 二进制流,不知道下载文件类型) |
| 70 | ''' </summary> |
| 71 | Public Const Unknown As String = "application/octet-stream" |
| 72 | Public Const MsDownload As String = "application/x-msdownload" |
| 73 | Public Const Json As String = "application/json" |
| 74 | Public Const ZIP As String = "application/zip" |
| 75 | Public Const Png As String = "image/png" |
| 76 | |
| 77 | Public ReadOnly Property UnknownType As New ContentType With { |
| 78 | .FileExt = "*.*", |
| 79 | .MIMEType = Unknown, |
| 80 | .Name = NameOf(Unknown) |
| 81 | } |
| 82 | |
| 83 | Sub New() |
| 84 | SuffixTable = My.Resources _ |
| 85 | .List_of_MIME_types___Internet_Media_Types_ _ |
| 86 | .LineTokens _ |
| 87 | .__loadContents _ |
| 88 | .Where(Function(x) Not x.IsEmpty) _ |
| 89 | .GroupBy(Function(x) x.FileExt.ToLower) _ |
| 90 | .ToDictionary(Function(x) x.Key, |
| 91 | Function(x) x.First) |
| 92 | ContentTypes = SuffixTable.Values _ |
| 93 | .ToDictionary(Function(x) x.MIMEType.ToLower) |
| 94 | End Sub |
| 95 | |
| 96 | <Extension> |
| 97 | Private Iterator Function __loadContents(lines As IEnumerable(Of String)) As IEnumerable(Of ContentType) |
| 98 | lines = From line As String |
| 99 | In lines.Skip(1) |
| 100 | Where Not String.IsNullOrWhiteSpace(line) |
| 101 | Select line |
| 102 | |
| 103 | For Each line$ In lines |
| 104 | Try |
| 105 | ' 2016-11-28 |
| 106 | ' Not sure why a bugs happed here, there is no bugs here before! |
| 107 | Yield ContentType.__createObject(line) |
| 108 | Catch ex As Exception |
| 109 | #If DEBUG Then |
| 110 | Call line.Warning |
| 111 | #End If |
| 112 | End Try |
| 113 | Next |
| 114 | End Function |
| 115 | End Module |
| 116 | End Namespace |