Dosya adı uzantısından MIME türünü alma

350

Bir dosya uzantısından MIME türünü nasıl alabilirim?

c#  asp.net  mime 
— meagar
kaynak
13
— Yuki
2
@Yuki, yeni alakalı bilgiler eklediğiniz için teşekkür ederiz. Ne yazık ki .NET 4.5'te bulunan MS uygulamasında yalnızca 195 eşleme vardır, daha fazla ekleme yapmanın bir yolu yoktur ve yapılandırılamaz. Aşağıdaki listemde 560+ eşleme var. Garip bir şekilde, MS listesinde .docx ve .xlsx gibi son derece yaygın MS uzantıları ve .csv, .swf ve .air gibi diğer önemli web uzantıları eksik.
— Samuel Neff

Yanıtlar:

437

ASP.NET veya diğerleri için

ASP.NET Core'da seçenekler biraz değiştirildi, işte bunlar ( kredi ):

  • new FileExtensionContentTypeProvider().TryGetContentType(fileName, out contentType); (yalnızca vSonraki)
    • Hiç test edilmedi, ancak mime türleri listesini açıkta kalan Mappingsözellik aracılığıyla resmi olarak genişletebileceğiniz gibi görünüyor .
  • Kullan MimeTypesNuget paketi
  • MimeMappingsDosyayı .NET Framework'ün başvuru kaynağından kopyalayın

.NET Framework> = 4.5 için:

System.Web.MimeMapping.GetMimeMapping.NET Framework 4.5'te BCL'nin bir parçası olan yöntemi kullanın :

string mimeType = MimeMapping.GetMimeMapping(fileName);

BCL MimeMappingsınıfına eşlemeler eklemek için muhtemelen yansıma kullanabileceğiniz özel eşlemeler eklemeniz gerekiyorsa, bu yöntemi ortaya çıkaran özel bir sözlük kullanır; .

Her neyse, MIME türleri eklemek için yansıma kullanırken, özel bir alana eriştiğiniz için adının değişebileceğini veya hatta tamamen kaldırılabileceğini unutmayın, bu nedenle ekstra dikkatli olmanız ve çift kontrol eklemeniz ve her adım için başarısız güvenli eylem sağlamanız gerekir .

MimeMapping._mappingDictionary.AddMapping(string fileExtension, string mimeType)
— Shimmy Weitzhandler
kaynak
18
Yeni alakalı bilgiler eklemek için +1. Ne yazık ki .NET 4.5'te bulunan MS uygulamasında yalnızca 195 eşleme vardır, daha fazla ekleme yapmanın bir yolu yoktur ve yapılandırılamaz. Yukarıdaki listemde 560 eşleme var. Hatta, böyle İşin garibi, listeleme MS eksik son derece yaygın MS uzantıları .docxve .xlsxdiğer önemli web uzantıları gibi .csv, .swfve .air.
— Samuel Neff
@SamuelNeff Tabii yansıma ( MimeMapping._mappingDictionary.AddMapping(string fileExtension, string mimeType)) kullanarak eşlemeler ekleyebilirsiniz .
— Shimmy Weitzhandler
20
özel alanlarda yansımayı kullanmak iyi bir fikir değildir. Sözleşmede üzerinde anlaşmaya varılmadığından ve bu durumda derleme zamanı hatası yerine bir çalışma zamanı hatası alacağınız için gelecekte değişme olasılıkları daha yüksektir. Bunu yapacaksanız, .NET sürümlerini yükseltirken erken yakaladığınızdan emin olmak için en azından birim testleri eklemelisiniz. Bunun yanı sıra, elle eşleme ekleyecekseniz, kendi koleksiyonunuzu da koruyabilirsiniz. Sınıf, bir sözlükteki sarıcıdan başka bir şey değildir.
— Samuel Neff
10
emin olun, bu hataları önler, ancak değişkenler ve yöntemler yoksa, özel eşlemeler ekleme kodunuz çalışmaz. Artık hata almayacaksınız. Kabul edemez ve tartışabiliriz, sonuçta haklı olarak teknik olarak yansıma yoluyla arayabilirsiniz, ancak kişisel olarak, kesinlikle gerekli olmadıkça ve erken yakalamak için uygun güvenlik önlemleri olmadan bir üretim uygulamasında özel mülklerin yansımasını kullanmanızı tavsiye etmem. başarısız.
— Samuel Neff
8
FWIW, System.Web ASP.NET CORE'dan kaldırıldı (asp.net 5), bu da artık MimeMapping anlamına gelmiyor.
— Nick De Beer
404

GÜNCELLEME

Pek çok katkıda bulunanın eklediği güncel eşleme için bu GitHub deposuna bakın:

https://github.com/samuelneff/MimeTypeMap

Uygulamamın kullandığı birçok mime türünü varsayılan Windows kayıt defterinde ve diğerleri kayıt defterinde değil, IIS'de bulunan listede bulmadım. Bu konumlardan bir liste derledim ve kullandığımız birkaç tane daha ekledim.

DÜZENLEME: Etkin ve belirleyici iki yönlü haritalama da dahil olmak üzere buradaki katkılarla en güncel sürüme bakın .

private static IDictionary<string, string> _mappings = new Dictionary<string, string>(StringComparer.InvariantCultureIgnoreCase) {

        #region Big freaking list of mime types
        // combination of values from Windows 7 Registry and 
        // from C:\Windows\System32\inetsrv\config\applicationHost.config
        // some added, including .7z and .dat
        {".323", "text/h323"},
        {".3g2", "video/3gpp2"},
        {".3gp", "video/3gpp"},
        {".3gp2", "video/3gpp2"},
        {".3gpp", "video/3gpp"},
        {".7z", "application/x-7z-compressed"},
        {".aa", "audio/audible"},
        {".AAC", "audio/aac"},
        {".aaf", "application/octet-stream"},
        {".aax", "audio/vnd.audible.aax"},
        {".ac3", "audio/ac3"},
        {".aca", "application/octet-stream"},
        {".accda", "application/msaccess.addin"},
        {".accdb", "application/msaccess"},
        {".accdc", "application/msaccess.cab"},
        {".accde", "application/msaccess"},
        {".accdr", "application/msaccess.runtime"},
        {".accdt", "application/msaccess"},
        {".accdw", "application/msaccess.webapplication"},
        {".accft", "application/msaccess.ftemplate"},
        {".acx", "application/internet-property-stream"},
        {".AddIn", "text/xml"},
        {".ade", "application/msaccess"},
        {".adobebridge", "application/x-bridge-url"},
        {".adp", "application/msaccess"},
        {".ADT", "audio/vnd.dlna.adts"},
        {".ADTS", "audio/aac"},
        {".afm", "application/octet-stream"},
        {".ai", "application/postscript"},
        {".aif", "audio/x-aiff"},
        {".aifc", "audio/aiff"},
        {".aiff", "audio/aiff"},
        {".air", "application/vnd.adobe.air-application-installer-package+zip"},
        {".amc", "application/x-mpeg"},
        {".application", "application/x-ms-application"},
        {".art", "image/x-jg"},
        {".asa", "application/xml"},
        {".asax", "application/xml"},
        {".ascx", "application/xml"},
        {".asd", "application/octet-stream"},
        {".asf", "video/x-ms-asf"},
        {".ashx", "application/xml"},
        {".asi", "application/octet-stream"},
        {".asm", "text/plain"},
        {".asmx", "application/xml"},
        {".aspx", "application/xml"},
        {".asr", "video/x-ms-asf"},
        {".asx", "video/x-ms-asf"},
        {".atom", "application/atom+xml"},
        {".au", "audio/basic"},
        {".avi", "video/x-msvideo"},
        {".axs", "application/olescript"},
        {".bas", "text/plain"},
        {".bcpio", "application/x-bcpio"},
        {".bin", "application/octet-stream"},
        {".bmp", "image/bmp"},
        {".c", "text/plain"},
        {".cab", "application/octet-stream"},
        {".caf", "audio/x-caf"},
        {".calx", "application/vnd.ms-office.calx"},
        {".cat", "application/vnd.ms-pki.seccat"},
        {".cc", "text/plain"},
        {".cd", "text/plain"},
        {".cdda", "audio/aiff"},
        {".cdf", "application/x-cdf"},
        {".cer", "application/x-x509-ca-cert"},
        {".chm", "application/octet-stream"},
        {".class", "application/x-java-applet"},
        {".clp", "application/x-msclip"},
        {".cmx", "image/x-cmx"},
        {".cnf", "text/plain"},
        {".cod", "image/cis-cod"},
        {".config", "application/xml"},
        {".contact", "text/x-ms-contact"},
        {".coverage", "application/xml"},
        {".cpio", "application/x-cpio"},
        {".cpp", "text/plain"},
        {".crd", "application/x-mscardfile"},
        {".crl", "application/pkix-crl"},
        {".crt", "application/x-x509-ca-cert"},
        {".cs", "text/plain"},
        {".csdproj", "text/plain"},
        {".csh", "application/x-csh"},
        {".csproj", "text/plain"},
        {".css", "text/css"},
        {".csv", "text/csv"},
        {".cur", "application/octet-stream"},
        {".cxx", "text/plain"},
        {".dat", "application/octet-stream"},
        {".datasource", "application/xml"},
        {".dbproj", "text/plain"},
        {".dcr", "application/x-director"},
        {".def", "text/plain"},
        {".deploy", "application/octet-stream"},
        {".der", "application/x-x509-ca-cert"},
        {".dgml", "application/xml"},
        {".dib", "image/bmp"},
        {".dif", "video/x-dv"},
        {".dir", "application/x-director"},
        {".disco", "text/xml"},
        {".dll", "application/x-msdownload"},
        {".dll.config", "text/xml"},
        {".dlm", "text/dlm"},
        {".doc", "application/msword"},
        {".docm", "application/vnd.ms-word.document.macroEnabled.12"},
        {".docx", "application/vnd.openxmlformats-officedocument.wordprocessingml.document"},
        {".dot", "application/msword"},
        {".dotm", "application/vnd.ms-word.template.macroEnabled.12"},
        {".dotx", "application/vnd.openxmlformats-officedocument.wordprocessingml.template"},
        {".dsp", "application/octet-stream"},
        {".dsw", "text/plain"},
        {".dtd", "text/xml"},
        {".dtsConfig", "text/xml"},
        {".dv", "video/x-dv"},
        {".dvi", "application/x-dvi"},
        {".dwf", "drawing/x-dwf"},
        {".dwp", "application/octet-stream"},
        {".dxr", "application/x-director"},
        {".eml", "message/rfc822"},
        {".emz", "application/octet-stream"},
        {".eot", "application/octet-stream"},
        {".eps", "application/postscript"},
        {".etl", "application/etl"},
        {".etx", "text/x-setext"},
        {".evy", "application/envoy"},
        {".exe", "application/octet-stream"},
        {".exe.config", "text/xml"},
        {".fdf", "application/vnd.fdf"},
        {".fif", "application/fractals"},
        {".filters", "Application/xml"},
        {".fla", "application/octet-stream"},
        {".flr", "x-world/x-vrml"},
        {".flv", "video/x-flv"},
        {".fsscript", "application/fsharp-script"},
        {".fsx", "application/fsharp-script"},
        {".generictest", "application/xml"},
        {".gif", "image/gif"},
        {".group", "text/x-ms-group"},
        {".gsm", "audio/x-gsm"},
        {".gtar", "application/x-gtar"},
        {".gz", "application/x-gzip"},
        {".h", "text/plain"},
        {".hdf", "application/x-hdf"},
        {".hdml", "text/x-hdml"},
        {".hhc", "application/x-oleobject"},
        {".hhk", "application/octet-stream"},
        {".hhp", "application/octet-stream"},
        {".hlp", "application/winhlp"},
        {".hpp", "text/plain"},
        {".hqx", "application/mac-binhex40"},
        {".hta", "application/hta"},
        {".htc", "text/x-component"},
        {".htm", "text/html"},
        {".html", "text/html"},
        {".htt", "text/webviewhtml"},
        {".hxa", "application/xml"},
        {".hxc", "application/xml"},
        {".hxd", "application/octet-stream"},
        {".hxe", "application/xml"},
        {".hxf", "application/xml"},
        {".hxh", "application/octet-stream"},
        {".hxi", "application/octet-stream"},
        {".hxk", "application/xml"},
        {".hxq", "application/octet-stream"},
        {".hxr", "application/octet-stream"},
        {".hxs", "application/octet-stream"},
        {".hxt", "text/html"},
        {".hxv", "application/xml"},
        {".hxw", "application/octet-stream"},
        {".hxx", "text/plain"},
        {".i", "text/plain"},
        {".ico", "image/x-icon"},
        {".ics", "application/octet-stream"},
        {".idl", "text/plain"},
        {".ief", "image/ief"},
        {".iii", "application/x-iphone"},
        {".inc", "text/plain"},
        {".inf", "application/octet-stream"},
        {".inl", "text/plain"},
        {".ins", "application/x-internet-signup"},
        {".ipa", "application/x-itunes-ipa"},
        {".ipg", "application/x-itunes-ipg"},
        {".ipproj", "text/plain"},
        {".ipsw", "application/x-itunes-ipsw"},
        {".iqy", "text/x-ms-iqy"},
        {".isp", "application/x-internet-signup"},
        {".ite", "application/x-itunes-ite"},
        {".itlp", "application/x-itunes-itlp"},
        {".itms", "application/x-itunes-itms"},
        {".itpc", "application/x-itunes-itpc"},
        {".IVF", "video/x-ivf"},
        {".jar", "application/java-archive"},
        {".java", "application/octet-stream"},
        {".jck", "application/liquidmotion"},
        {".jcz", "application/liquidmotion"},
        {".jfif", "image/pjpeg"},
        {".jnlp", "application/x-java-jnlp-file"},
        {".jpb", "application/octet-stream"},
        {".jpe", "image/jpeg"},
        {".jpeg", "image/jpeg"},
        {".jpg", "image/jpeg"},
        {".js", "application/x-javascript"},
        {".json", "application/json"},
        {".jsx", "text/jscript"},
        {".jsxbin", "text/plain"},
        {".latex", "application/x-latex"},
        {".library-ms", "application/windows-library+xml"},
        {".lit", "application/x-ms-reader"},
        {".loadtest", "application/xml"},
        {".lpk", "application/octet-stream"},
        {".lsf", "video/x-la-asf"},
        {".lst", "text/plain"},
        {".lsx", "video/x-la-asf"},
        {".lzh", "application/octet-stream"},
        {".m13", "application/x-msmediaview"},
        {".m14", "application/x-msmediaview"},
        {".m1v", "video/mpeg"},
        {".m2t", "video/vnd.dlna.mpeg-tts"},
        {".m2ts", "video/vnd.dlna.mpeg-tts"},
        {".m2v", "video/mpeg"},
        {".m3u", "audio/x-mpegurl"},
        {".m3u8", "audio/x-mpegurl"},
        {".m4a", "audio/m4a"},
        {".m4b", "audio/m4b"},
        {".m4p", "audio/m4p"},
        {".m4r", "audio/x-m4r"},
        {".m4v", "video/x-m4v"},
        {".mac", "image/x-macpaint"},
        {".mak", "text/plain"},
        {".man", "application/x-troff-man"},
        {".manifest", "application/x-ms-manifest"},
        {".map", "text/plain"},
        {".master", "application/xml"},
        {".mda", "application/msaccess"},
        {".mdb", "application/x-msaccess"},
        {".mde", "application/msaccess"},
        {".mdp", "application/octet-stream"},
        {".me", "application/x-troff-me"},
        {".mfp", "application/x-shockwave-flash"},
        {".mht", "message/rfc822"},
        {".mhtml", "message/rfc822"},
        {".mid", "audio/mid"},
        {".midi", "audio/mid"},
        {".mix", "application/octet-stream"},
        {".mk", "text/plain"},
        {".mmf", "application/x-smaf"},
        {".mno", "text/xml"},
        {".mny", "application/x-msmoney"},
        {".mod", "video/mpeg"},
        {".mov", "video/quicktime"},
        {".movie", "video/x-sgi-movie"},
        {".mp2", "video/mpeg"},
        {".mp2v", "video/mpeg"},
        {".mp3", "audio/mpeg"},
        {".mp4", "video/mp4"},
        {".mp4v", "video/mp4"},
        {".mpa", "video/mpeg"},
        {".mpe", "video/mpeg"},
        {".mpeg", "video/mpeg"},
        {".mpf", "application/vnd.ms-mediapackage"},
        {".mpg", "video/mpeg"},
        {".mpp", "application/vnd.ms-project"},
        {".mpv2", "video/mpeg"},
        {".mqv", "video/quicktime"},
        {".ms", "application/x-troff-ms"},
        {".msi", "application/octet-stream"},
        {".mso", "application/octet-stream"},
        {".mts", "video/vnd.dlna.mpeg-tts"},
        {".mtx", "application/xml"},
        {".mvb", "application/x-msmediaview"},
        {".mvc", "application/x-miva-compiled"},
        {".mxp", "application/x-mmxp"},
        {".nc", "application/x-netcdf"},
        {".nsc", "video/x-ms-asf"},
        {".nws", "message/rfc822"},
        {".ocx", "application/octet-stream"},
        {".oda", "application/oda"},
        {".odc", "text/x-ms-odc"},
        {".odh", "text/plain"},
        {".odl", "text/plain"},
        {".odp", "application/vnd.oasis.opendocument.presentation"},
        {".ods", "application/oleobject"},
        {".odt", "application/vnd.oasis.opendocument.text"},
        {".one", "application/onenote"},
        {".onea", "application/onenote"},
        {".onepkg", "application/onenote"},
        {".onetmp", "application/onenote"},
        {".onetoc", "application/onenote"},
        {".onetoc2", "application/onenote"},
        {".orderedtest", "application/xml"},
        {".osdx", "application/opensearchdescription+xml"},
        {".p10", "application/pkcs10"},
        {".p12", "application/x-pkcs12"},
        {".p7b", "application/x-pkcs7-certificates"},
        {".p7c", "application/pkcs7-mime"},
        {".p7m", "application/pkcs7-mime"},
        {".p7r", "application/x-pkcs7-certreqresp"},
        {".p7s", "application/pkcs7-signature"},
        {".pbm", "image/x-portable-bitmap"},
        {".pcast", "application/x-podcast"},
        {".pct", "image/pict"},
        {".pcx", "application/octet-stream"},
        {".pcz", "application/octet-stream"},
        {".pdf", "application/pdf"},
        {".pfb", "application/octet-stream"},
        {".pfm", "application/octet-stream"},
        {".pfx", "application/x-pkcs12"},
        {".pgm", "image/x-portable-graymap"},
        {".pic", "image/pict"},
        {".pict", "image/pict"},
        {".pkgdef", "text/plain"},
        {".pkgundef", "text/plain"},
        {".pko", "application/vnd.ms-pki.pko"},
        {".pls", "audio/scpls"},
        {".pma", "application/x-perfmon"},
        {".pmc", "application/x-perfmon"},
        {".pml", "application/x-perfmon"},
        {".pmr", "application/x-perfmon"},
        {".pmw", "application/x-perfmon"},
        {".png", "image/png"},
        {".pnm", "image/x-portable-anymap"},
        {".pnt", "image/x-macpaint"},
        {".pntg", "image/x-macpaint"},
        {".pnz", "image/png"},
        {".pot", "application/vnd.ms-powerpoint"},
        {".potm", "application/vnd.ms-powerpoint.template.macroEnabled.12"},
        {".potx", "application/vnd.openxmlformats-officedocument.presentationml.template"},
        {".ppa", "application/vnd.ms-powerpoint"},
        {".ppam", "application/vnd.ms-powerpoint.addin.macroEnabled.12"},
        {".ppm", "image/x-portable-pixmap"},
        {".pps", "application/vnd.ms-powerpoint"},
        {".ppsm", "application/vnd.ms-powerpoint.slideshow.macroEnabled.12"},
        {".ppsx", "application/vnd.openxmlformats-officedocument.presentationml.slideshow"},
        {".ppt", "application/vnd.ms-powerpoint"},
        {".pptm", "application/vnd.ms-powerpoint.presentation.macroEnabled.12"},
        {".pptx", "application/vnd.openxmlformats-officedocument.presentationml.presentation"},
        {".prf", "application/pics-rules"},
        {".prm", "application/octet-stream"},
        {".prx", "application/octet-stream"},
        {".ps", "application/postscript"},
        {".psc1", "application/PowerShell"},
        {".psd", "application/octet-stream"},
        {".psess", "application/xml"},
        {".psm", "application/octet-stream"},
        {".psp", "application/octet-stream"},
        {".pub", "application/x-mspublisher"},
        {".pwz", "application/vnd.ms-powerpoint"},
        {".qht", "text/x-html-insertion"},
        {".qhtm", "text/x-html-insertion"},
        {".qt", "video/quicktime"},
        {".qti", "image/x-quicktime"},
        {".qtif", "image/x-quicktime"},
        {".qtl", "application/x-quicktimeplayer"},
        {".qxd", "application/octet-stream"},
        {".ra", "audio/x-pn-realaudio"},
        {".ram", "audio/x-pn-realaudio"},
        {".rar", "application/octet-stream"},
        {".ras", "image/x-cmu-raster"},
        {".rat", "application/rat-file"},
        {".rc", "text/plain"},
        {".rc2", "text/plain"},
        {".rct", "text/plain"},
        {".rdlc", "application/xml"},
        {".resx", "application/xml"},
        {".rf", "image/vnd.rn-realflash"},
        {".rgb", "image/x-rgb"},
        {".rgs", "text/plain"},
        {".rm", "application/vnd.rn-realmedia"},
        {".rmi", "audio/mid"},
        {".rmp", "application/vnd.rn-rn_music_package"},
        {".roff", "application/x-troff"},
        {".rpm", "audio/x-pn-realaudio-plugin"},
        {".rqy", "text/x-ms-rqy"},
        {".rtf", "application/rtf"},
        {".rtx", "text/richtext"},
        {".ruleset", "application/xml"},
        {".s", "text/plain"},
        {".safariextz", "application/x-safari-safariextz"},
        {".scd", "application/x-msschedule"},
        {".sct", "text/scriptlet"},
        {".sd2", "audio/x-sd2"},
        {".sdp", "application/sdp"},
        {".sea", "application/octet-stream"},
        {".searchConnector-ms", "application/windows-search-connector+xml"},
        {".setpay", "application/set-payment-initiation"},
        {".setreg", "application/set-registration-initiation"},
        {".settings", "application/xml"},
        {".sgimb", "application/x-sgimb"},
        {".sgml", "text/sgml"},
        {".sh", "application/x-sh"},
        {".shar", "application/x-shar"},
        {".shtml", "text/html"},
        {".sit", "application/x-stuffit"},
        {".sitemap", "application/xml"},
        {".skin", "application/xml"},
        {".sldm", "application/vnd.ms-powerpoint.slide.macroEnabled.12"},
        {".sldx", "application/vnd.openxmlformats-officedocument.presentationml.slide"},
        {".slk", "application/vnd.ms-excel"},
        {".sln", "text/plain"},
        {".slupkg-ms", "application/x-ms-license"},
        {".smd", "audio/x-smd"},
        {".smi", "application/octet-stream"},
        {".smx", "audio/x-smd"},
        {".smz", "audio/x-smd"},
        {".snd", "audio/basic"},
        {".snippet", "application/xml"},
        {".snp", "application/octet-stream"},
        {".sol", "text/plain"},
        {".sor", "text/plain"},
        {".spc", "application/x-pkcs7-certificates"},
        {".spl", "application/futuresplash"},
        {".src", "application/x-wais-source"},
        {".srf", "text/plain"},
        {".SSISDeploymentManifest", "text/xml"},
        {".ssm", "application/streamingmedia"},
        {".sst", "application/vnd.ms-pki.certstore"},
        {".stl", "application/vnd.ms-pki.stl"},
        {".sv4cpio", "application/x-sv4cpio"},
        {".sv4crc", "application/x-sv4crc"},
        {".svc", "application/xml"},
        {".swf", "application/x-shockwave-flash"},
        {".t", "application/x-troff"},
        {".tar", "application/x-tar"},
        {".tcl", "application/x-tcl"},
        {".testrunconfig", "application/xml"},
        {".testsettings", "application/xml"},
        {".tex", "application/x-tex"},
        {".texi", "application/x-texinfo"},
        {".texinfo", "application/x-texinfo"},
        {".tgz", "application/x-compressed"},
        {".thmx", "application/vnd.ms-officetheme"},
        {".thn", "application/octet-stream"},
        {".tif", "image/tiff"},
        {".tiff", "image/tiff"},
        {".tlh", "text/plain"},
        {".tli", "text/plain"},
        {".toc", "application/octet-stream"},
        {".tr", "application/x-troff"},
        {".trm", "application/x-msterminal"},
        {".trx", "application/xml"},
        {".ts", "video/vnd.dlna.mpeg-tts"},
        {".tsv", "text/tab-separated-values"},
        {".ttf", "application/octet-stream"},
        {".tts", "video/vnd.dlna.mpeg-tts"},
        {".txt", "text/plain"},
        {".u32", "application/octet-stream"},
        {".uls", "text/iuls"},
        {".user", "text/plain"},
        {".ustar", "application/x-ustar"},
        {".vb", "text/plain"},
        {".vbdproj", "text/plain"},
        {".vbk", "video/mpeg"},
        {".vbproj", "text/plain"},
        {".vbs", "text/vbscript"},
        {".vcf", "text/x-vcard"},
        {".vcproj", "Application/xml"},
        {".vcs", "text/plain"},
        {".vcxproj", "Application/xml"},
        {".vddproj", "text/plain"},
        {".vdp", "text/plain"},
        {".vdproj", "text/plain"},
        {".vdx", "application/vnd.ms-visio.viewer"},
        {".vml", "text/xml"},
        {".vscontent", "application/xml"},
        {".vsct", "text/xml"},
        {".vsd", "application/vnd.visio"},
        {".vsi", "application/ms-vsi"},
        {".vsix", "application/vsix"},
        {".vsixlangpack", "text/xml"},
        {".vsixmanifest", "text/xml"},
        {".vsmdi", "application/xml"},
        {".vspscc", "text/plain"},
        {".vss", "application/vnd.visio"},
        {".vsscc", "text/plain"},
        {".vssettings", "text/xml"},
        {".vssscc", "text/plain"},
        {".vst", "application/vnd.visio"},
        {".vstemplate", "text/xml"},
        {".vsto", "application/x-ms-vsto"},
        {".vsw", "application/vnd.visio"},
        {".vsx", "application/vnd.visio"},
        {".vtx", "application/vnd.visio"},
        {".wav", "audio/wav"},
        {".wave", "audio/wav"},
        {".wax", "audio/x-ms-wax"},
        {".wbk", "application/msword"},
        {".wbmp", "image/vnd.wap.wbmp"},
        {".wcm", "application/vnd.ms-works"},
        {".wdb", "application/vnd.ms-works"},
        {".wdp", "image/vnd.ms-photo"},
        {".webarchive", "application/x-safari-webarchive"},
        {".webtest", "application/xml"},
        {".wiq", "application/xml"},
        {".wiz", "application/msword"},
        {".wks", "application/vnd.ms-works"},
        {".WLMP", "application/wlmoviemaker"},
        {".wlpginstall", "application/x-wlpg-detect"},
        {".wlpginstall3", "application/x-wlpg3-detect"},
        {".wm", "video/x-ms-wm"},
        {".wma", "audio/x-ms-wma"},
        {".wmd", "application/x-ms-wmd"},
        {".wmf", "application/x-msmetafile"},
        {".wml", "text/vnd.wap.wml"},
        {".wmlc", "application/vnd.wap.wmlc"},
        {".wmls", "text/vnd.wap.wmlscript"},
        {".wmlsc", "application/vnd.wap.wmlscriptc"},
        {".wmp", "video/x-ms-wmp"},
        {".wmv", "video/x-ms-wmv"},
        {".wmx", "video/x-ms-wmx"},
        {".wmz", "application/x-ms-wmz"},
        {".wpl", "application/vnd.ms-wpl"},
        {".wps", "application/vnd.ms-works"},
        {".wri", "application/x-mswrite"},
        {".wrl", "x-world/x-vrml"},
        {".wrz", "x-world/x-vrml"},
        {".wsc", "text/scriptlet"},
        {".wsdl", "text/xml"},
        {".wvx", "video/x-ms-wvx"},
        {".x", "application/directx"},
        {".xaf", "x-world/x-vrml"},
        {".xaml", "application/xaml+xml"},
        {".xap", "application/x-silverlight-app"},
        {".xbap", "application/x-ms-xbap"},
        {".xbm", "image/x-xbitmap"},
        {".xdr", "text/plain"},
        {".xht", "application/xhtml+xml"},
        {".xhtml", "application/xhtml+xml"},
        {".xla", "application/vnd.ms-excel"},
        {".xlam", "application/vnd.ms-excel.addin.macroEnabled.12"},
        {".xlc", "application/vnd.ms-excel"},
        {".xld", "application/vnd.ms-excel"},
        {".xlk", "application/vnd.ms-excel"},
        {".xll", "application/vnd.ms-excel"},
        {".xlm", "application/vnd.ms-excel"},
        {".xls", "application/vnd.ms-excel"},
        {".xlsb", "application/vnd.ms-excel.sheet.binary.macroEnabled.12"},
        {".xlsm", "application/vnd.ms-excel.sheet.macroEnabled.12"},
        {".xlsx", "application/vnd.openxmlformats-officedocument.spreadsheetml.sheet"},
        {".xlt", "application/vnd.ms-excel"},
        {".xltm", "application/vnd.ms-excel.template.macroEnabled.12"},
        {".xltx", "application/vnd.openxmlformats-officedocument.spreadsheetml.template"},
        {".xlw", "application/vnd.ms-excel"},
        {".xml", "text/xml"},
        {".xmta", "application/xml"},
        {".xof", "x-world/x-vrml"},
        {".XOML", "text/plain"},
        {".xpm", "image/x-xpixmap"},
        {".xps", "application/vnd.ms-xpsdocument"},
        {".xrm-ms", "text/xml"},
        {".xsc", "application/xml"},
        {".xsd", "text/xml"},
        {".xsf", "text/xml"},
        {".xsl", "text/xml"},
        {".xslt", "text/xml"},
        {".xsn", "application/octet-stream"},
        {".xss", "application/xml"},
        {".xtp", "application/octet-stream"},
        {".xwd", "image/x-xwindowdump"},
        {".z", "application/x-compress"},
        {".zip", "application/x-zip-compressed"},
        #endregion

        };

public static string GetMimeType(string extension)
{
    if (extension == null)
    {
        throw new ArgumentNullException("extension");
    }

    if (!extension.StartsWith("."))
    {
        extension = "." + extension;
    }

    string mime;

    return _mappings.TryGetValue(extension, out mime) ? mime : "application/octet-stream";
}
— Samuel Neff
kaynak
28
Her nasılsa, başlangıçta bir veri dosyasından ilişkilendirilebilir bir veri yapısı oluşturmanın biraz daha akılcı olacağını hissediyorum.
— Jon Purdy
13
Hey pplz MSFT şimdi uyguladı! Bu kontrol
— Shimmy Weitzhandler
6
@Shimmy, ilginç. Ne yazık ki .NET 4.5'te bulunan MS uygulamasında yalnızca 195 eşleme vardır, daha fazla ekleme yapmanın bir yolu yoktur ve yapılandırılamaz. Yukarıdaki listemde 560 eşleme var. Hatta, böyle İşin garibi, listeleme MS eksik son derece yaygın MS uzantıları .docxve .xlsxdiğer önemli web uzantıları gibi .csv, .swfve .air.
— Samuel Neff
1
@JonPurdy, sonunda bir sözlük kullanmak için onu yeniden düzenledim.
— Samuel Neff
2
@AnthonyVO, komik, aslında bir geçiş olarak vardı. Aslında dizelerde bir anahtar oluşturduğunuzda, bir sözlükten daha fazla yükü vardır. Kodu açın. Aslında yaptığı bir işaretçi sözlüğü oluşturmak ve daha sonra söz konusu konuma atlamak için sözlükteki işaretçiyi arar. Bu nedenle sözlük aslında daha az ek yüke sahiptir.
— Samuel Neff
52

Bu yardımcı işlevi kullanabilirsiniz:

private string GetMimeType (string fileName)
{
    string mimeType = "application/unknown";
    string ext = System.IO.Path.GetExtension(fileName).ToLower();
    Microsoft.Win32.RegistryKey regKey = Microsoft.Win32.Registry.ClassesRoot.OpenSubKey(ext);
    if (regKey != null && regKey.GetValue("Content Type") != null)
    mimeType = regKey.GetValue("Content Type").ToString();
    return mimeType;
}
— Bryan Denny
kaynak
18
bu kodu çalıştırdığınız makinenin yalnızca bazı türler hakkında "bileceğini" unutmayın. Örneğin, makineye daha önce hiç PDF okuyucu yüklenmemişse PDF listelenmeyecektir.
— msulis
Evet, kayıt defterinden geldiğinden ve yüklü olmayan yazılımlardan uzantıları kaçırabildiğinden, bu biraz tehlikelidir, örneğin .xlsx, Office'in yalnızca eski sürümlerine sahipse, sadece .xls olacaktır
— Nestor
2
Buna ek olarak, bu her mim türü gerektiğinde bir kayıt defteri araması gerçekleştirmek için çok pahalı bir çağrı olacaktır. Belki önbelleğe alınmışsa, ama yine de Samuel tarafından yazılan statik sözlük yöntemini tercih ederim.
— Mark
5
... Veya Mono kullanıyorsanız, gerçekten elinizde bir Windows kayıt defteri yok ... :)
— enorl76
@dadwithkids Bir kayıt defteri aramasının neden "yavaş" olacağından emin değilim .. kayıt defteri erişimi oldukça optimize edilmiştir (ve HTTP içeriğinden daha hızlı olmalıdır). Saniyede kaç işlem / saniye işlemenin istendiğini görmek için bir noktada kayıt defteri erişimini izlemeniz yeterlidir.
— user2864740
38

Sadece yapmak Shimmy bireyin cevabı daha net:

var mimeType = MimeMapping.GetMimeMapping(fileName);

System.Web.dll v4.5

// Summary:
//     Returns the MIME mapping for the specified file name.
//
// Parameters:
//   fileName:
//     The file name that is used to determine the MIME type.
public static string GetMimeMapping(string fileName);
— Falcı
kaynak
6
var mimetype = System.Web.MimeMapping.GetMimeMapping (dosyaadıwithext);
— Jay
17

Bu bilgileri kayıt defterinde bulabilirsiniz. Örneğin, .pdf dosyası için MIME türü anahtarda HKEY_CLASSES_ROOT\.pdf"İçerik Türü" değerinde bulunabilir:

string mimeType = Registry.GetValue(@"HKEY_CLASSES_ROOT\.pdf", "Content Type", null) as string;
— Thomas Levesque
kaynak
Windows kullanıyorsanız evet. Temel fikir, "bu bilginin nerede verildiğini bul" ve bunu bir tür veri yapısına aktarmadır.
— maxwellb
3
OP ASP.NET ... Tamam, ASP.NET Mono Linux sayesinde çalıştırılabilir ilgili, ama o acidzombie24 ... Windows'u kullanıyor varsaymak oldukça güvenli olduğunu düşünüyorum böylece, çok yaygın bir senaryo değil edilir
— Thomas Levesque
3
ASP.NET hakkında konuşurken ve Linux kullanımını belirtmek değil Windows verilen bir varsayalım.
— Wolf5
19
Sonuç, istemcinin yüklediği yazılıma bağlı olduğundan bu çözüme dikkat edin. yani Office olmadan .doc herhangi bir İçerik Türüne sahip değildir.
— Marc Climent
1
Evet, Mark haklı. Mimetype aramak için .PDF için Adobe Acrobat yüklü olmam gerekiyor (Windows Server 2008 R2'de denendi). Yani, uzantı ile ilişkili program bu mime türünü korur (pencereleri değil).
— Vyas Bharghava
17

Apache mime.types dosyasını getirmek ve Dictionary<string, string>dosya uzantısı ile anahtarlanmış bir C # dönüştürmek için bir program yazdım . O var burada .

Gerçek çıktı bu dosyadır (ancak son çalıştırdığımdan bu yana Apache dosyasının güncellenmesi durumunda dosyayı alıp tekrar çalıştırmak isteyebilirsiniz).

public static Dictionary<string, string> MimeTypes = new Dictionary<string, string>
{
  { "123", "application/vnd.lotus-1-2-3" },
  { "3dml", "text/vnd.in3d.3dml" },
  { "3g2", "video/3gpp2" },
  { "3gp", "video/3gpp" },
  { "7z", "application/x-7z-compressed" },
  { "aab", "application/x-authorware-bin" },
  { "aac", "audio/x-aac" },
  { "aam", "application/x-authorware-map" },
  { "aas", "application/x-authorware-seg" },
  { "abw", "application/x-abiword" },
  ...
— Cymen
kaynak
1
Oh, bu çok hoş! Benzer bir şeyi başka türlü de yapabilirim; Dictionary<String,String[]>tüm uzantılarıyla birlikte her mime tipinden bir sınıf oluşturmak için . Gönderilen içerik türüne göre indirmeleri kontrol etmek ve gerektiğinde varsayılan bir uzantı eklemek için kullanışlıdır.
— Nyerguds
@Nyerguds Kulağa yararlı geliyor. Yukarıdakilere eklemek için bir PR yapmak istiyorsanız, birleştirmekten memnuniyet duyarım. Ya da kendi işinizi yapabilirsiniz! Ancak her iki yön de kulağa yararlı geliyor.
— Cymen
1
Asıl sorun 'varsayılan' bölüm gibi görünüyor ... bu mime türlerinin bazıları için birçok, birçok uzantı ideal varsayılan. Muhtemelen yine de bunların bir listesini
— kodlamak zorundayım
15

Samuel Neff'in yaptığı işi seviyorum ama her seferinde sözlük oluşturma fikri ve yükü değil.

Bir şeyleri anahtar olarak yeniden yapılandırdım. Evet bunu yineleyemezsiniz ama benim durumumda bunu sadece hızlı bir şekilde bir değer aramak için kullanıyorum. Özellikle bir web hizmetinde yapıldığından, istediğim son şey, uygulama yapılarını hazırlarken bir sürü ek yüktür. Derleyici bunu karma bir aramaya dönüştürecek ve bu yüzden çok hızlı olacaktır.

public static string GetMimeType(string extension)
{
  if (extension == null)
    throw new ArgumentNullException("extension");

  if (extension.StartsWith("."))
    extension = extension.Substring(1);


  switch (extension.ToLower())
{
    #region Big freaking list of mime types
    case "323": return "text/h323";
    case "3g2": return "video/3gpp2";
    case "3gp": return "video/3gpp";
    case "3gp2": return "video/3gpp2";
    case "3gpp": return "video/3gpp";
    case "7z": return "application/x-7z-compressed";
    case "aa": return "audio/audible";
    case "aac": return "audio/aac";
    case "aaf": return "application/octet-stream";
    case "aax": return "audio/vnd.audible.aax";
    case "ac3": return "audio/ac3";
    case "aca": return "application/octet-stream";
    case "accda": return "application/msaccess.addin";
    case "accdb": return "application/msaccess";
    case "accdc": return "application/msaccess.cab";
    case "accde": return "application/msaccess";
    case "accdr": return "application/msaccess.runtime";
    case "accdt": return "application/msaccess";
    case "accdw": return "application/msaccess.webapplication";
    case "accft": return "application/msaccess.ftemplate";
    case "acx": return "application/internet-property-stream";
    case "addin": return "text/xml";
    case "ade": return "application/msaccess";
    case "adobebridge": return "application/x-bridge-url";
    case "adp": return "application/msaccess";
    case "adt": return "audio/vnd.dlna.adts";
    case "adts": return "audio/aac";
    case "afm": return "application/octet-stream";
    case "ai": return "application/postscript";
    case "aif": return "audio/x-aiff";
    case "aifc": return "audio/aiff";
    case "aiff": return "audio/aiff";
    case "air": return "application/vnd.adobe.air-application-installer-package+zip";
    case "amc": return "application/x-mpeg";
    case "application": return "application/x-ms-application";
    case "art": return "image/x-jg";
    case "asa": return "application/xml";
    case "asax": return "application/xml";
    case "ascx": return "application/xml";
    case "asd": return "application/octet-stream";
    case "asf": return "video/x-ms-asf";
    case "ashx": return "application/xml";
    case "asi": return "application/octet-stream";
    case "asm": return "text/plain";
    case "asmx": return "application/xml";
    case "aspx": return "application/xml";
    case "asr": return "video/x-ms-asf";
    case "asx": return "video/x-ms-asf";
    case "atom": return "application/atom+xml";
    case "au": return "audio/basic";
    case "avi": return "video/x-msvideo";
    case "axs": return "application/olescript";
    case "bas": return "text/plain";
    case "bcpio": return "application/x-bcpio";
    case "bin": return "application/octet-stream";
    case "bmp": return "image/bmp";
    case "c": return "text/plain";
    case "cab": return "application/octet-stream";
    case "caf": return "audio/x-caf";
    case "calx": return "application/vnd.ms-office.calx";
    case "cat": return "application/vnd.ms-pki.seccat";
    case "cc": return "text/plain";
    case "cd": return "text/plain";
    case "cdda": return "audio/aiff";
    case "cdf": return "application/x-cdf";
    case "cer": return "application/x-x509-ca-cert";
    case "chm": return "application/octet-stream";
    case "class": return "application/x-java-applet";
    case "clp": return "application/x-msclip";
    case "cmx": return "image/x-cmx";
    case "cnf": return "text/plain";
    case "cod": return "image/cis-cod";
    case "config": return "application/xml";
    case "contact": return "text/x-ms-contact";
    case "coverage": return "application/xml";
    case "cpio": return "application/x-cpio";
    case "cpp": return "text/plain";
    case "crd": return "application/x-mscardfile";
    case "crl": return "application/pkix-crl";
    case "crt": return "application/x-x509-ca-cert";
    case "cs": return "text/plain";
    case "csdproj": return "text/plain";
    case "csh": return "application/x-csh";
    case "csproj": return "text/plain";
    case "css": return "text/css";
    case "csv": return "text/csv";
    case "cur": return "application/octet-stream";
    case "cxx": return "text/plain";
    case "dat": return "application/octet-stream";
    case "datasource": return "application/xml";
    case "dbproj": return "text/plain";
    case "dcr": return "application/x-director";
    case "def": return "text/plain";
    case "deploy": return "application/octet-stream";
    case "der": return "application/x-x509-ca-cert";
    case "dgml": return "application/xml";
    case "dib": return "image/bmp";
    case "dif": return "video/x-dv";
    case "dir": return "application/x-director";
    case "disco": return "text/xml";
    case "dll": return "application/x-msdownload";
    case "dll.config": return "text/xml";
    case "dlm": return "text/dlm";
    case "doc": return "application/msword";
    case "docm": return "application/vnd.ms-word.document.macroenabled.12";
    case "docx": return "application/vnd.openxmlformats-officedocument.wordprocessingml.document";
    case "dot": return "application/msword";
    case "dotm": return "application/vnd.ms-word.template.macroenabled.12";
    case "dotx": return "application/vnd.openxmlformats-officedocument.wordprocessingml.template";
    case "dsp": return "application/octet-stream";
    case "dsw": return "text/plain";
    case "dtd": return "text/xml";
    case "dtsconfig": return "text/xml";
    case "dv": return "video/x-dv";
    case "dvi": return "application/x-dvi";
    case "dwf": return "drawing/x-dwf";
    case "dwp": return "application/octet-stream";
    case "dxr": return "application/x-director";
    case "eml": return "message/rfc822";
    case "emz": return "application/octet-stream";
    case "eot": return "application/octet-stream";
    case "eps": return "application/postscript";
    case "etl": return "application/etl";
    case "etx": return "text/x-setext";
    case "evy": return "application/envoy";
    case "exe": return "application/octet-stream";
    case "exe.config": return "text/xml";
    case "fdf": return "application/vnd.fdf";
    case "fif": return "application/fractals";
    case "filters": return "application/xml";
    case "fla": return "application/octet-stream";
    case "flr": return "x-world/x-vrml";
    case "flv": return "video/x-flv";
    case "fsscript": return "application/fsharp-script";
    case "fsx": return "application/fsharp-script";
    case "generictest": return "application/xml";
    case "gif": return "image/gif";
    case "group": return "text/x-ms-group";
    case "gsm": return "audio/x-gsm";
    case "gtar": return "application/x-gtar";
    case "gz": return "application/x-gzip";
    case "h": return "text/plain";
    case "hdf": return "application/x-hdf";
    case "hdml": return "text/x-hdml";
    case "hhc": return "application/x-oleobject";
    case "hhk": return "application/octet-stream";
    case "hhp": return "application/octet-stream";
    case "hlp": return "application/winhlp";
    case "hpp": return "text/plain";
    case "hqx": return "application/mac-binhex40";
    case "hta": return "application/hta";
    case "htc": return "text/x-component";
    case "htm": return "text/html";
    case "html": return "text/html";
    case "htt": return "text/webviewhtml";
    case "hxa": return "application/xml";
    case "hxc": return "application/xml";
    case "hxd": return "application/octet-stream";
    case "hxe": return "application/xml";
    case "hxf": return "application/xml";
    case "hxh": return "application/octet-stream";
    case "hxi": return "application/octet-stream";
    case "hxk": return "application/xml";
    case "hxq": return "application/octet-stream";
    case "hxr": return "application/octet-stream";
    case "hxs": return "application/octet-stream";
    case "hxt": return "text/html";
    case "hxv": return "application/xml";
    case "hxw": return "application/octet-stream";
    case "hxx": return "text/plain";
    case "i": return "text/plain";
    case "ico": return "image/x-icon";
    case "ics": return "application/octet-stream";
    case "idl": return "text/plain";
    case "ief": return "image/ief";
    case "iii": return "application/x-iphone";
    case "inc": return "text/plain";
    case "inf": return "application/octet-stream";
    case "inl": return "text/plain";
    case "ins": return "application/x-internet-signup";
    case "ipa": return "application/x-itunes-ipa";
    case "ipg": return "application/x-itunes-ipg";
    case "ipproj": return "text/plain";
    case "ipsw": return "application/x-itunes-ipsw";
    case "iqy": return "text/x-ms-iqy";
    case "isp": return "application/x-internet-signup";
    case "ite": return "application/x-itunes-ite";
    case "itlp": return "application/x-itunes-itlp";
    case "itms": return "application/x-itunes-itms";
    case "itpc": return "application/x-itunes-itpc";
    case "ivf": return "video/x-ivf";
    case "jar": return "application/java-archive";
    case "java": return "application/octet-stream";
    case "jck": return "application/liquidmotion";
    case "jcz": return "application/liquidmotion";
    case "jfif": return "image/pjpeg";
    case "jnlp": return "application/x-java-jnlp-file";
    case "jpb": return "application/octet-stream";
    case "jpe": return "image/jpeg";
    case "jpeg": return "image/jpeg";
    case "jpg": return "image/jpeg";
    case "js": return "application/x-javascript";
    case "jsx": return "text/jscript";
    case "jsxbin": return "text/plain";
    case "latex": return "application/x-latex";
    case "library-ms": return "application/windows-library+xml";
    case "lit": return "application/x-ms-reader";
    case "loadtest": return "application/xml";
    case "lpk": return "application/octet-stream";
    case "lsf": return "video/x-la-asf";
    case "lst": return "text/plain";
    case "lsx": return "video/x-la-asf";
    case "lzh": return "application/octet-stream";
    case "m13": return "application/x-msmediaview";
    case "m14": return "application/x-msmediaview";
    case "m1v": return "video/mpeg";
    case "m2t": return "video/vnd.dlna.mpeg-tts";
    case "m2ts": return "video/vnd.dlna.mpeg-tts";
    case "m2v": return "video/mpeg";
    case "m3u": return "audio/x-mpegurl";
    case "m3u8": return "audio/x-mpegurl";
    case "m4a": return "audio/m4a";
    case "m4b": return "audio/m4b";
    case "m4p": return "audio/m4p";
    case "m4r": return "audio/x-m4r";
    case "m4v": return "video/x-m4v";
    case "mac": return "image/x-macpaint";
    case "mak": return "text/plain";
    case "man": return "application/x-troff-man";
    case "manifest": return "application/x-ms-manifest";
    case "map": return "text/plain";
    case "master": return "application/xml";
    case "mda": return "application/msaccess";
    case "mdb": return "application/x-msaccess";
    case "mde": return "application/msaccess";
    case "mdp": return "application/octet-stream";
    case "me": return "application/x-troff-me";
    case "mfp": return "application/x-shockwave-flash";
    case "mht": return "message/rfc822";
    case "mhtml": return "message/rfc822";
    case "mid": return "audio/mid";
    case "midi": return "audio/mid";
    case "mix": return "application/octet-stream";
    case "mk": return "text/plain";
    case "mmf": return "application/x-smaf";
    case "mno": return "text/xml";
    case "mny": return "application/x-msmoney";
    case "mod": return "video/mpeg";
    case "mov": return "video/quicktime";
    case "movie": return "video/x-sgi-movie";
    case "mp2": return "video/mpeg";
    case "mp2v": return "video/mpeg";
    case "mp3": return "audio/mpeg";
    case "mp4": return "video/mp4";
    case "mp4v": return "video/mp4";
    case "mpa": return "video/mpeg";
    case "mpe": return "video/mpeg";
    case "mpeg": return "video/mpeg";
    case "mpf": return "application/vnd.ms-mediapackage";
    case "mpg": return "video/mpeg";
    case "mpp": return "application/vnd.ms-project";
    case "mpv2": return "video/mpeg";
    case "mqv": return "video/quicktime";
    case "ms": return "application/x-troff-ms";
    case "msi": return "application/octet-stream";
    case "mso": return "application/octet-stream";
    case "mts": return "video/vnd.dlna.mpeg-tts";
    case "mtx": return "application/xml";
    case "mvb": return "application/x-msmediaview";
    case "mvc": return "application/x-miva-compiled";
    case "mxp": return "application/x-mmxp";
    case "nc": return "application/x-netcdf";
    case "nsc": return "video/x-ms-asf";
    case "nws": return "message/rfc822";
    case "ocx": return "application/octet-stream";
    case "oda": return "application/oda";
    case "odc": return "text/x-ms-odc";
    case "odh": return "text/plain";
    case "odl": return "text/plain";
    case "odp": return "application/vnd.oasis.opendocument.presentation";
    case "ods": return "application/oleobject";
    case "odt": return "application/vnd.oasis.opendocument.text";
    case "one": return "application/onenote";
    case "onea": return "application/onenote";
    case "onepkg": return "application/onenote";
    case "onetmp": return "application/onenote";
    case "onetoc": return "application/onenote";
    case "onetoc2": return "application/onenote";
    case "orderedtest": return "application/xml";
    case "osdx": return "application/opensearchdescription+xml";
    case "p10": return "application/pkcs10";
    case "p12": return "application/x-pkcs12";
    case "p7b": return "application/x-pkcs7-certificates";
    case "p7c": return "application/pkcs7-mime";
    case "p7m": return "application/pkcs7-mime";
    case "p7r": return "application/x-pkcs7-certreqresp";
    case "p7s": return "application/pkcs7-signature";
    case "pbm": return "image/x-portable-bitmap";
    case "pcast": return "application/x-podcast";
    case "pct": return "image/pict";
    case "pcx": return "application/octet-stream";
    case "pcz": return "application/octet-stream";
    case "pdf": return "application/pdf";
    case "pfb": return "application/octet-stream";
    case "pfm": return "application/octet-stream";
    case "pfx": return "application/x-pkcs12";
    case "pgm": return "image/x-portable-graymap";
    case "pic": return "image/pict";
    case "pict": return "image/pict";
    case "pkgdef": return "text/plain";
    case "pkgundef": return "text/plain";
    case "pko": return "application/vnd.ms-pki.pko";
    case "pls": return "audio/scpls";
    case "pma": return "application/x-perfmon";
    case "pmc": return "application/x-perfmon";
    case "pml": return "application/x-perfmon";
    case "pmr": return "application/x-perfmon";
    case "pmw": return "application/x-perfmon";
    case "png": return "image/png";
    case "pnm": return "image/x-portable-anymap";
    case "pnt": return "image/x-macpaint";
    case "pntg": return "image/x-macpaint";
    case "pnz": return "image/png";
    case "pot": return "application/vnd.ms-powerpoint";
    case "potm": return "application/vnd.ms-powerpoint.template.macroenabled.12";
    case "potx": return "application/vnd.openxmlformats-officedocument.presentationml.template";
    case "ppa": return "application/vnd.ms-powerpoint";
    case "ppam": return "application/vnd.ms-powerpoint.addin.macroenabled.12";
    case "ppm": return "image/x-portable-pixmap";
    case "pps": return "application/vnd.ms-powerpoint";
    case "ppsm": return "application/vnd.ms-powerpoint.slideshow.macroenabled.12";
    case "ppsx": return "application/vnd.openxmlformats-officedocument.presentationml.slideshow";
    case "ppt": return "application/vnd.ms-powerpoint";
    case "pptm": return "application/vnd.ms-powerpoint.presentation.macroenabled.12";
    case "pptx": return "application/vnd.openxmlformats-officedocument.presentationml.presentation";
    case "prf": return "application/pics-rules";
    case "prm": return "application/octet-stream";
    case "prx": return "application/octet-stream";
    case "ps": return "application/postscript";
    case "psc1": return "application/powershell";
    case "psd": return "application/octet-stream";
    case "psess": return "application/xml";
    case "psm": return "application/octet-stream";
    case "psp": return "application/octet-stream";
    case "pub": return "application/x-mspublisher";
    case "pwz": return "application/vnd.ms-powerpoint";
    case "qht": return "text/x-html-insertion";
    case "qhtm": return "text/x-html-insertion";
    case "qt": return "video/quicktime";
    case "qti": return "image/x-quicktime";
    case "qtif": return "image/x-quicktime";
    case "qtl": return "application/x-quicktimeplayer";
    case "qxd": return "application/octet-stream";
    case "ra": return "audio/x-pn-realaudio";
    case "ram": return "audio/x-pn-realaudio";
    case "rar": return "application/octet-stream";
    case "ras": return "image/x-cmu-raster";
    case "rat": return "application/rat-file";
    case "rc": return "text/plain";
    case "rc2": return "text/plain";
    case "rct": return "text/plain";
    case "rdlc": return "application/xml";
    case "resx": return "application/xml";
    case "rf": return "image/vnd.rn-realflash";
    case "rgb": return "image/x-rgb";
    case "rgs": return "text/plain";
    case "rm": return "application/vnd.rn-realmedia";
    case "rmi": return "audio/mid";
    case "rmp": return "application/vnd.rn-rn_music_package";
    case "roff": return "application/x-troff";
    case "rpm": return "audio/x-pn-realaudio-plugin";
    case "rqy": return "text/x-ms-rqy";
    case "rtf": return "application/rtf";
    case "rtx": return "text/richtext";
    case "ruleset": return "application/xml";
    case "s": return "text/plain";
    case "safariextz": return "application/x-safari-safariextz";
    case "scd": return "application/x-msschedule";
    case "sct": return "text/scriptlet";
    case "sd2": return "audio/x-sd2";
    case "sdp": return "application/sdp";
    case "sea": return "application/octet-stream";
    case "searchconnector-ms": return "application/windows-search-connector+xml";
    case "setpay": return "application/set-payment-initiation";
    case "setreg": return "application/set-registration-initiation";
    case "settings": return "application/xml";
    case "sgimb": return "application/x-sgimb";
    case "sgml": return "text/sgml";
    case "sh": return "application/x-sh";
    case "shar": return "application/x-shar";
    case "shtml": return "text/html";
    case "sit": return "application/x-stuffit";
    case "sitemap": return "application/xml";
    case "skin": return "application/xml";
    case "sldm": return "application/vnd.ms-powerpoint.slide.macroenabled.12";
    case "sldx": return "application/vnd.openxmlformats-officedocument.presentationml.slide";
    case "slk": return "application/vnd.ms-excel";
    case "sln": return "text/plain";
    case "slupkg-ms": return "application/x-ms-license";
    case "smd": return "audio/x-smd";
    case "smi": return "application/octet-stream";
    case "smx": return "audio/x-smd";
    case "smz": return "audio/x-smd";
    case "snd": return "audio/basic";
    case "snippet": return "application/xml";
    case "snp": return "application/octet-stream";
    case "sol": return "text/plain";
    case "sor": return "text/plain";
    case "spc": return "application/x-pkcs7-certificates";
    case "spl": return "application/futuresplash";
    case "src": return "application/x-wais-source";
    case "srf": return "text/plain";
    case "ssisdeploymentmanifest": return "text/xml";
    case "ssm": return "application/streamingmedia";
    case "sst": return "application/vnd.ms-pki.certstore";
    case "stl": return "application/vnd.ms-pki.stl";
    case "sv4cpio": return "application/x-sv4cpio";
    case "sv4crc": return "application/x-sv4crc";
    case "svc": return "application/xml";
    case "swf": return "application/x-shockwave-flash";
    case "t": return "application/x-troff";
    case "tar": return "application/x-tar";
    case "tcl": return "application/x-tcl";
    case "testrunconfig": return "application/xml";
    case "testsettings": return "application/xml";
    case "tex": return "application/x-tex";
    case "texi": return "application/x-texinfo";
    case "texinfo": return "application/x-texinfo";
    case "tgz": return "application/x-compressed";
    case "thmx": return "application/vnd.ms-officetheme";
    case "thn": return "application/octet-stream";
    case "tif": return "image/tiff";
    case "tiff": return "image/tiff";
    case "tlh": return "text/plain";
    case "tli": return "text/plain";
    case "toc": return "application/octet-stream";
    case "tr": return "application/x-troff";
    case "trm": return "application/x-msterminal";
    case "trx": return "application/xml";
    case "ts": return "video/vnd.dlna.mpeg-tts";
    case "tsv": return "text/tab-separated-values";
    case "ttf": return "application/octet-stream";
    case "tts": return "video/vnd.dlna.mpeg-tts";
    case "txt": return "text/plain";
    case "u32": return "application/octet-stream";
    case "uls": return "text/iuls";
    case "user": return "text/plain";
    case "ustar": return "application/x-ustar";
    case "vb": return "text/plain";
    case "vbdproj": return "text/plain";
    case "vbk": return "video/mpeg";
    case "vbproj": return "text/plain";
    case "vbs": return "text/vbscript";
    case "vcf": return "text/x-vcard";
    case "vcproj": return "application/xml";
    case "vcs": return "text/plain";
    case "vcxproj": return "application/xml";
    case "vddproj": return "text/plain";
    case "vdp": return "text/plain";
    case "vdproj": return "text/plain";
    case "vdx": return "application/vnd.ms-visio.viewer";
    case "vml": return "text/xml";
    case "vscontent": return "application/xml";
    case "vsct": return "text/xml";
    case "vsd": return "application/vnd.visio";
    case "vsi": return "application/ms-vsi";
    case "vsix": return "application/vsix";
    case "vsixlangpack": return "text/xml";
    case "vsixmanifest": return "text/xml";
    case "vsmdi": return "application/xml";
    case "vspscc": return "text/plain";
    case "vss": return "application/vnd.visio";
    case "vsscc": return "text/plain";
    case "vssettings": return "text/xml";
    case "vssscc": return "text/plain";
    case "vst": return "application/vnd.visio";
    case "vstemplate": return "text/xml";
    case "vsto": return "application/x-ms-vsto";
    case "vsw": return "application/vnd.visio";
    case "vsx": return "application/vnd.visio";
    case "vtx": return "application/vnd.visio";
    case "wav": return "audio/wav";
    case "wave": return "audio/wav";
    case "wax": return "audio/x-ms-wax";
    case "wbk": return "application/msword";
    case "wbmp": return "image/vnd.wap.wbmp";
    case "wcm": return "application/vnd.ms-works";
    case "wdb": return "application/vnd.ms-works";
    case "wdp": return "image/vnd.ms-photo";
    case "webarchive": return "application/x-safari-webarchive";
    case "webtest": return "application/xml";
    case "wiq": return "application/xml";
    case "wiz": return "application/msword";
    case "wks": return "application/vnd.ms-works";
    case "wlmp": return "application/wlmoviemaker";
    case "wlpginstall": return "application/x-wlpg-detect";
    case "wlpginstall3": return "application/x-wlpg3-detect";
    case "wm": return "video/x-ms-wm";
    case "wma": return "audio/x-ms-wma";
    case "wmd": return "application/x-ms-wmd";
    case "wmf": return "application/x-msmetafile";
    case "wml": return "text/vnd.wap.wml";
    case "wmlc": return "application/vnd.wap.wmlc";
    case "wmls": return "text/vnd.wap.wmlscript";
    case "wmlsc": return "application/vnd.wap.wmlscriptc";
    case "wmp": return "video/x-ms-wmp";
    case "wmv": return "video/x-ms-wmv";
    case "wmx": return "video/x-ms-wmx";
    case "wmz": return "application/x-ms-wmz";
    case "wpl": return "application/vnd.ms-wpl";
    case "wps": return "application/vnd.ms-works";
    case "wri": return "application/x-mswrite";
    case "wrl": return "x-world/x-vrml";
    case "wrz": return "x-world/x-vrml";
    case "wsc": return "text/scriptlet";
    case "wsdl": return "text/xml";
    case "wvx": return "video/x-ms-wvx";
    case "x": return "application/directx";
    case "xaf": return "x-world/x-vrml";
    case "xaml": return "application/xaml+xml";
    case "xap": return "application/x-silverlight-app";
    case "xbap": return "application/x-ms-xbap";
    case "xbm": return "image/x-xbitmap";
    case "xdr": return "text/plain";
    case "xht": return "application/xhtml+xml";
    case "xhtml": return "application/xhtml+xml";
    case "xla": return "application/vnd.ms-excel";
    case "xlam": return "application/vnd.ms-excel.addin.macroenabled.12";
    case "xlc": return "application/vnd.ms-excel";
    case "xld": return "application/vnd.ms-excel";
    case "xlk": return "application/vnd.ms-excel";
    case "xll": return "application/vnd.ms-excel";
    case "xlm": return "application/vnd.ms-excel";
    case "xls": return "application/vnd.ms-excel";
    case "xlsb": return "application/vnd.ms-excel.sheet.binary.macroenabled.12";
    case "xlsm": return "application/vnd.ms-excel.sheet.macroenabled.12";
    case "xlsx": return "application/vnd.openxmlformats-officedocument.spreadsheetml.sheet";
    case "xlt": return "application/vnd.ms-excel";
    case "xltm": return "application/vnd.ms-excel.template.macroenabled.12";
    case "xltx": return "application/vnd.openxmlformats-officedocument.spreadsheetml.template";
    case "xlw": return "application/vnd.ms-excel";
    case "xml": return "text/xml";
    case "xmta": return "application/xml";
    case "xof": return "x-world/x-vrml";
    case "xoml": return "text/plain";
    case "xpm": return "image/x-xpixmap";
    case "xps": return "application/vnd.ms-xpsdocument";
    case "xrm-ms": return "text/xml";
    case "xsc": return "application/xml";
    case "xsd": return "text/xml";
    case "xsf": return "text/xml";
    case "xsl": return "text/xml";
    case "xslt": return "text/xml";
    case "xsn": return "application/octet-stream";
    case "xss": return "application/xml";
    case "xtp": return "application/octet-stream";
    case "xwd": return "image/x-xwindowdump";
    case "z": return "application/x-compress";
    case "zip": return "application/x-zip-compressed";
  #endregion
    default: return "application/octet-stream";
  }
}
— AnthonyVO
kaynak
1
Herkes bu işlevin tersi var mı? mime türüne göre uzantı ayarlanmalı mı? sadece tembel olmak: P
— FabioG
5
@FabioG Bunun sizin için yararlı olacağından emin değilim. Örneğin, "application / xml" MIME türünde bu listeden eşleşen 43 uzantı bulunur.
— Barrie
@Barrie Şöyle bir şey yapabilir misiniz: standart bir uzantı (en düşük ortak paydada bir bıçak) almak için listedeki ilkini kullanın, örneğin "application / xml" => .xml ve "image / jpeg" =>. Jpg çoğu işletim sisteminde çalışır? Neyi kaçırıyorum? Bu bazı standart tipler için iyi olacağını tahmin ama bu v uzun listede bol başarısız. düşünceler?
— MemeDeveloper
5
Tepegöz, statik hale getirilerek kolayca önlenebilir. Bununla birlikte, dizeleri olan bir anahtar kutusu, 'tepegöz' söz konusu olduğunda korkunç, korkunç bir şeydir. Basitçe söylemek gerekirse ... işlemci düzeyinde, her şey sadece kontroller ve sıçramalar; if/ else, while, for... bunların hiçbiri gerçekte var. switch/ caseAncak, tipik olarak, enums bulunan küçük tam sayı değerlerine tatbik yapar bulunmaktadır. Muhteşem zarif küçük bir işlemdir. Ayrıca, dizelerde de çalışmaz, yani yazdığınız şey gerçekten sadece bir dizi dize karşılaştırmasıdır. Bir Dictionary nesnesi bunu her gün yener.
— Nyerguds
9

burada sunulan her iki çözümün bir kombinasyonu:

using System;
using System.Collections.Generic;

namespace Mime
{
    class Mime
    {

        public static string GetMimeType(string fileName)
        {
            if (string.IsNullOrEmpty(fileName) || string.IsNullOrWhiteSpace(fileName))
            {
                throw new ArgumentNullException("filename must contain a filename");
            }
            string extension = System.IO.Path.GetExtension(fileName).ToLower();

            if (!extension.StartsWith("."))
            {
                extension = "." + extension;
            }


            string mime;

            if (_mappings.TryGetValue(extension, out mime))
                return mime;
            if (GetWindowsMimeType(extension, out mime))
            {
                _mappings.Add(extension, mime);
                return mime;
            }
            return "application/octet-stream";
        }

        public static bool GetWindowsMimeType(string ext, out string mime)
        {
            mime="application/octet-stream";
            Microsoft.Win32.RegistryKey regKey = Microsoft.Win32.Registry.ClassesRoot.OpenSubKey(ext);

            if (regKey != null)
            { 
             object val=regKey.GetValue("Content Type") ;
             if (val != null)
             {
                 string strval = val.ToString();
                 if(!(string.IsNullOrEmpty(strval)||string.IsNullOrWhiteSpace(strval)))
                 {
                     mime=strval;
                     return true;
                 }
             }
            }
            return false;
        }

        static IDictionary<string, string> _mappings = new Dictionary<string, string>(StringComparer.InvariantCultureIgnoreCase) {

        #region Big freaking list of mime types
        // combination of values from Windows 7 Registry and 
        // from C:\Windows\System32\inetsrv\config\applicationHost.config
        // some added, including .7z and .dat
        {".323", "text/h323"},
        {".3g2", "video/3gpp2"},
        {".3gp", "video/3gpp"},
        {".3gp2", "video/3gpp2"},
        {".3gpp", "video/3gpp"},
        {".7z", "application/x-7z-compressed"},
        {".aa", "audio/audible"},
        {".AAC", "audio/aac"},
        {".aaf", "application/octet-stream"},
        {".aax", "audio/vnd.audible.aax"},
        {".ac3", "audio/ac3"},
        {".aca", "application/octet-stream"},
        {".accda", "application/msaccess.addin"},
        {".accdb", "application/msaccess"},
        {".accdc", "application/msaccess.cab"},
        {".accde", "application/msaccess"},
        {".accdr", "application/msaccess.runtime"},
        {".accdt", "application/msaccess"},
        {".accdw", "application/msaccess.webapplication"},
        {".accft", "application/msaccess.ftemplate"},
        {".acx", "application/internet-property-stream"},
        {".AddIn", "text/xml"},
        {".ade", "application/msaccess"},
        {".adobebridge", "application/x-bridge-url"},
        {".adp", "application/msaccess"},
        {".ADT", "audio/vnd.dlna.adts"},
        {".ADTS", "audio/aac"},
        {".afm", "application/octet-stream"},
        {".ai", "application/postscript"},
        {".aif", "audio/x-aiff"},
        {".aifc", "audio/aiff"},
        {".aiff", "audio/aiff"},
        {".air", "application/vnd.adobe.air-application-installer-package+zip"},
        {".amc", "application/x-mpeg"},
        {".application", "application/x-ms-application"},
        {".art", "image/x-jg"},
        {".asa", "application/xml"},
        {".asax", "application/xml"},
        {".ascx", "application/xml"},
        {".asd", "application/octet-stream"},
        {".asf", "video/x-ms-asf"},
        {".ashx", "application/xml"},
        {".asi", "application/octet-stream"},
        {".asm", "text/plain"},
        {".asmx", "application/xml"},
        {".aspx", "application/xml"},
        {".asr", "video/x-ms-asf"},
        {".asx", "video/x-ms-asf"},
        {".atom", "application/atom+xml"},
        {".au", "audio/basic"},
        {".avi", "video/x-msvideo"},
        {".axs", "application/olescript"},
        {".bas", "text/plain"},
        {".bcpio", "application/x-bcpio"},
        {".bin", "application/octet-stream"},
        {".bmp", "image/bmp"},
        {".c", "text/plain"},
        {".cab", "application/octet-stream"},
        {".caf", "audio/x-caf"},
        {".calx", "application/vnd.ms-office.calx"},
        {".cat", "application/vnd.ms-pki.seccat"},
        {".cc", "text/plain"},
        {".cd", "text/plain"},
        {".cdda", "audio/aiff"},
        {".cdf", "application/x-cdf"},
        {".cer", "application/x-x509-ca-cert"},
        {".chm", "application/octet-stream"},
        {".class", "application/x-java-applet"},
        {".clp", "application/x-msclip"},
        {".cmx", "image/x-cmx"},
        {".cnf", "text/plain"},
        {".cod", "image/cis-cod"},
        {".config", "application/xml"},
        {".contact", "text/x-ms-contact"},
        {".coverage", "application/xml"},
        {".cpio", "application/x-cpio"},
        {".cpp", "text/plain"},
        {".crd", "application/x-mscardfile"},
        {".crl", "application/pkix-crl"},
        {".crt", "application/x-x509-ca-cert"},
        {".cs", "text/plain"},
        {".csdproj", "text/plain"},
        {".csh", "application/x-csh"},
        {".csproj", "text/plain"},
        {".css", "text/css"},
        {".csv", "text/csv"},
        {".cur", "application/octet-stream"},
        {".cxx", "text/plain"},
        {".dat", "application/octet-stream"},
        {".datasource", "application/xml"},
        {".dbproj", "text/plain"},
        {".dcr", "application/x-director"},
        {".def", "text/plain"},
        {".deploy", "application/octet-stream"},
        {".der", "application/x-x509-ca-cert"},
        {".dgml", "application/xml"},
        {".dib", "image/bmp"},
        {".dif", "video/x-dv"},
        {".dir", "application/x-director"},
        {".disco", "text/xml"},
        {".dll", "application/x-msdownload"},
        {".dll.config", "text/xml"},
        {".dlm", "text/dlm"},
        {".doc", "application/msword"},
        {".docm", "application/vnd.ms-word.document.macroEnabled.12"},
        {".docx", "application/vnd.openxmlformats-officedocument.wordprocessingml.document"},
        {".dot", "application/msword"},
        {".dotm", "application/vnd.ms-word.template.macroEnabled.12"},
        {".dotx", "application/vnd.openxmlformats-officedocument.wordprocessingml.template"},
        {".dsp", "application/octet-stream"},
        {".dsw", "text/plain"},
        {".dtd", "text/xml"},
        {".dtsConfig", "text/xml"},
        {".dv", "video/x-dv"},
        {".dvi", "application/x-dvi"},
        {".dwf", "drawing/x-dwf"},
        {".dwp", "application/octet-stream"},
        {".dxr", "application/x-director"},
        {".eml", "message/rfc822"},
        {".emz", "application/octet-stream"},
        {".eot", "application/octet-stream"},
        {".eps", "application/postscript"},
        {".etl", "application/etl"},
        {".etx", "text/x-setext"},
        {".evy", "application/envoy"},
        {".exe", "application/octet-stream"},
        {".exe.config", "text/xml"},
        {".fdf", "application/vnd.fdf"},
        {".fif", "application/fractals"},
        {".filters", "Application/xml"},
        {".fla", "application/octet-stream"},
        {".flr", "x-world/x-vrml"},
        {".flv", "video/x-flv"},
        {".fsscript", "application/fsharp-script"},
        {".fsx", "application/fsharp-script"},
        {".generictest", "application/xml"},
        {".gif", "image/gif"},
        {".group", "text/x-ms-group"},
        {".gsm", "audio/x-gsm"},
        {".gtar", "application/x-gtar"},
        {".gz", "application/x-gzip"},
        {".h", "text/plain"},
        {".hdf", "application/x-hdf"},
        {".hdml", "text/x-hdml"},
        {".hhc", "application/x-oleobject"},
        {".hhk", "application/octet-stream"},
        {".hhp", "application/octet-stream"},
        {".hlp", "application/winhlp"},
        {".hpp", "text/plain"},
        {".hqx", "application/mac-binhex40"},
        {".hta", "application/hta"},
        {".htc", "text/x-component"},
        {".htm", "text/html"},
        {".html", "text/html"},
        {".htt", "text/webviewhtml"},
        {".hxa", "application/xml"},
        {".hxc", "application/xml"},
        {".hxd", "application/octet-stream"},
        {".hxe", "application/xml"},
        {".hxf", "application/xml"},
        {".hxh", "application/octet-stream"},
        {".hxi", "application/octet-stream"},
        {".hxk", "application/xml"},
        {".hxq", "application/octet-stream"},
        {".hxr", "application/octet-stream"},
        {".hxs", "application/octet-stream"},
        {".hxt", "text/html"},
        {".hxv", "application/xml"},
        {".hxw", "application/octet-stream"},
        {".hxx", "text/plain"},
        {".i", "text/plain"},
        {".ico", "image/x-icon"},
        {".ics", "application/octet-stream"},
        {".idl", "text/plain"},
        {".ief", "image/ief"},
        {".iii", "application/x-iphone"},
        {".inc", "text/plain"},
        {".inf", "application/octet-stream"},
        {".inl", "text/plain"},
        {".ins", "application/x-internet-signup"},
        {".ipa", "application/x-itunes-ipa"},
        {".ipg", "application/x-itunes-ipg"},
        {".ipproj", "text/plain"},
        {".ipsw", "application/x-itunes-ipsw"},
        {".iqy", "text/x-ms-iqy"},
        {".isp", "application/x-internet-signup"},
        {".ite", "application/x-itunes-ite"},
        {".itlp", "application/x-itunes-itlp"},
        {".itms", "application/x-itunes-itms"},
        {".itpc", "application/x-itunes-itpc"},
        {".IVF", "video/x-ivf"},
        {".jar", "application/java-archive"},
        {".java", "application/octet-stream"},
        {".jck", "application/liquidmotion"},
        {".jcz", "application/liquidmotion"},
        {".jfif", "image/pjpeg"},
        {".jnlp", "application/x-java-jnlp-file"},
        {".jpb", "application/octet-stream"},
        {".jpe", "image/jpeg"},
        {".jpeg", "image/jpeg"},
        {".jpg", "image/jpeg"},
        {".js", "application/x-javascript"},
        {".jsx", "text/jscript"},
        {".jsxbin", "text/plain"},
        {".latex", "application/x-latex"},
        {".library-ms", "application/windows-library+xml"},
        {".lit", "application/x-ms-reader"},
        {".loadtest", "application/xml"},
        {".lpk", "application/octet-stream"},
        {".lsf", "video/x-la-asf"},
        {".lst", "text/plain"},
        {".lsx", "video/x-la-asf"},
        {".lzh", "application/octet-stream"},
        {".m13", "application/x-msmediaview"},
        {".m14", "application/x-msmediaview"},
        {".m1v", "video/mpeg"},
        {".m2t", "video/vnd.dlna.mpeg-tts"},
        {".m2ts", "video/vnd.dlna.mpeg-tts"},
        {".m2v", "video/mpeg"},
        {".m3u", "audio/x-mpegurl"},
        {".m3u8", "audio/x-mpegurl"},
        {".m4a", "audio/m4a"},
        {".m4b", "audio/m4b"},
        {".m4p", "audio/m4p"},
        {".m4r", "audio/x-m4r"},
        {".m4v", "video/x-m4v"},
        {".mac", "image/x-macpaint"},
        {".mak", "text/plain"},
        {".man", "application/x-troff-man"},
        {".manifest", "application/x-ms-manifest"},
        {".map", "text/plain"},
        {".master", "application/xml"},
        {".mda", "application/msaccess"},
        {".mdb", "application/x-msaccess"},
        {".mde", "application/msaccess"},
        {".mdp", "application/octet-stream"},
        {".me", "application/x-troff-me"},
        {".mfp", "application/x-shockwave-flash"},
        {".mht", "message/rfc822"},
        {".mhtml", "message/rfc822"},
        {".mid", "audio/mid"},
        {".midi", "audio/mid"},
        {".mix", "application/octet-stream"},
        {".mk", "text/plain"},
        {".mmf", "application/x-smaf"},
        {".mno", "text/xml"},
        {".mny", "application/x-msmoney"},
        {".mod", "video/mpeg"},
        {".mov", "video/quicktime"},
        {".movie", "video/x-sgi-movie"},
        {".mp2", "video/mpeg"},
        {".mp2v", "video/mpeg"},
        {".mp3", "audio/mpeg"},
        {".mp4", "video/mp4"},
        {".mp4v", "video/mp4"},
        {".mpa", "video/mpeg"},
        {".mpe", "video/mpeg"},
        {".mpeg", "video/mpeg"},
        {".mpf", "application/vnd.ms-mediapackage"},
        {".mpg", "video/mpeg"},
        {".mpp", "application/vnd.ms-project"},
        {".mpv2", "video/mpeg"},
        {".mqv", "video/quicktime"},
        {".ms", "application/x-troff-ms"},
        {".msi", "application/octet-stream"},
        {".mso", "application/octet-stream"},
        {".mts", "video/vnd.dlna.mpeg-tts"},
        {".mtx", "application/xml"},
        {".mvb", "application/x-msmediaview"},
        {".mvc", "application/x-miva-compiled"},
        {".mxp", "application/x-mmxp"},
        {".nc", "application/x-netcdf"},
        {".nsc", "video/x-ms-asf"},
        {".nws", "message/rfc822"},
        {".ocx", "application/octet-stream"},
        {".oda", "application/oda"},
        {".odc", "text/x-ms-odc"},
        {".odh", "text/plain"},
        {".odl", "text/plain"},
        {".odp", "application/vnd.oasis.opendocument.presentation"},
        {".ods", "application/oleobject"},
        {".odt", "application/vnd.oasis.opendocument.text"},
        {".one", "application/onenote"},
        {".onea", "application/onenote"},
        {".onepkg", "application/onenote"},
        {".onetmp", "application/onenote"},
        {".onetoc", "application/onenote"},
        {".onetoc2", "application/onenote"},
        {".orderedtest", "application/xml"},
        {".osdx", "application/opensearchdescription+xml"},
        {".p10", "application/pkcs10"},
        {".p12", "application/x-pkcs12"},
        {".p7b", "application/x-pkcs7-certificates"},
        {".p7c", "application/pkcs7-mime"},
        {".p7m", "application/pkcs7-mime"},
        {".p7r", "application/x-pkcs7-certreqresp"},
        {".p7s", "application/pkcs7-signature"},
        {".pbm", "image/x-portable-bitmap"},
        {".pcast", "application/x-podcast"},
        {".pct", "image/pict"},
        {".pcx", "application/octet-stream"},
        {".pcz", "application/octet-stream"},
        {".pdf", "application/pdf"},
        {".pfb", "application/octet-stream"},
        {".pfm", "application/octet-stream"},
        {".pfx", "application/x-pkcs12"},
        {".pgm", "image/x-portable-graymap"},
        {".pic", "image/pict"},
        {".pict", "image/pict"},
        {".pkgdef", "text/plain"},
        {".pkgundef", "text/plain"},
        {".pko", "application/vnd.ms-pki.pko"},
        {".pls", "audio/scpls"},
        {".pma", "application/x-perfmon"},
        {".pmc", "application/x-perfmon"},
        {".pml", "application/x-perfmon"},
        {".pmr", "application/x-perfmon"},
        {".pmw", "application/x-perfmon"},
        {".png", "image/png"},
        {".pnm", "image/x-portable-anymap"},
        {".pnt", "image/x-macpaint"},
        {".pntg", "image/x-macpaint"},
        {".pnz", "image/png"},
        {".pot", "application/vnd.ms-powerpoint"},
        {".potm", "application/vnd.ms-powerpoint.template.macroEnabled.12"},
        {".potx", "application/vnd.openxmlformats-officedocument.presentationml.template"},
        {".ppa", "application/vnd.ms-powerpoint"},
        {".ppam", "application/vnd.ms-powerpoint.addin.macroEnabled.12"},
        {".ppm", "image/x-portable-pixmap"},
        {".pps", "application/vnd.ms-powerpoint"},
        {".ppsm", "application/vnd.ms-powerpoint.slideshow.macroEnabled.12"},
        {".ppsx", "application/vnd.openxmlformats-officedocument.presentationml.slideshow"},
        {".ppt", "application/vnd.ms-powerpoint"},
        {".pptm", "application/vnd.ms-powerpoint.presentation.macroEnabled.12"},
        {".pptx", "application/vnd.openxmlformats-officedocument.presentationml.presentation"},
        {".prf", "application/pics-rules"},
        {".prm", "application/octet-stream"},
        {".prx", "application/octet-stream"},
        {".ps", "application/postscript"},
        {".psc1", "application/PowerShell"},
        {".psd", "application/octet-stream"},
        {".psess", "application/xml"},
        {".psm", "application/octet-stream"},
        {".psp", "application/octet-stream"},
        {".pub", "application/x-mspublisher"},
        {".pwz", "application/vnd.ms-powerpoint"},
        {".qht", "text/x-html-insertion"},
        {".qhtm", "text/x-html-insertion"},
        {".qt", "video/quicktime"},
        {".qti", "image/x-quicktime"},
        {".qtif", "image/x-quicktime"},
        {".qtl", "application/x-quicktimeplayer"},
        {".qxd", "application/octet-stream"},
        {".ra", "audio/x-pn-realaudio"},
        {".ram", "audio/x-pn-realaudio"},
        {".rar", "application/octet-stream"},
        {".ras", "image/x-cmu-raster"},
        {".rat", "application/rat-file"},
        {".rc", "text/plain"},
        {".rc2", "text/plain"},
        {".rct", "text/plain"},
        {".rdlc", "application/xml"},
        {".resx", "application/xml"},
        {".rf", "image/vnd.rn-realflash"},
        {".rgb", "image/x-rgb"},
        {".rgs", "text/plain"},
        {".rm", "application/vnd.rn-realmedia"},
        {".rmi", "audio/mid"},
        {".rmp", "application/vnd.rn-rn_music_package"},
        {".roff", "application/x-troff"},
        {".rpm", "audio/x-pn-realaudio-plugin"},
        {".rqy", "text/x-ms-rqy"},
        {".rtf", "application/rtf"},
        {".rtx", "text/richtext"},
        {".ruleset", "application/xml"},
        {".s", "text/plain"},
        {".safariextz", "application/x-safari-safariextz"},
        {".scd", "application/x-msschedule"},
        {".sct", "text/scriptlet"},
        {".sd2", "audio/x-sd2"},
        {".sdp", "application/sdp"},
        {".sea", "application/octet-stream"},
        {".searchConnector-ms", "application/windows-search-connector+xml"},
        {".setpay", "application/set-payment-initiation"},
        {".setreg", "application/set-registration-initiation"},
        {".settings", "application/xml"},
        {".sgimb", "application/x-sgimb"},
        {".sgml", "text/sgml"},
        {".sh", "application/x-sh"},
        {".shar", "application/x-shar"},
        {".shtml", "text/html"},
        {".sit", "application/x-stuffit"},
        {".sitemap", "application/xml"},
        {".skin", "application/xml"},
        {".sldm", "application/vnd.ms-powerpoint.slide.macroEnabled.12"},
        {".sldx", "application/vnd.openxmlformats-officedocument.presentationml.slide"},
        {".slk", "application/vnd.ms-excel"},
        {".sln", "text/plain"},
        {".slupkg-ms", "application/x-ms-license"},
        {".smd", "audio/x-smd"},
        {".smi", "application/octet-stream"},
        {".smx", "audio/x-smd"},
        {".smz", "audio/x-smd"},
        {".snd", "audio/basic"},
        {".snippet", "application/xml"},
        {".snp", "application/octet-stream"},
        {".sol", "text/plain"},
        {".sor", "text/plain"},
        {".spc", "application/x-pkcs7-certificates"},
        {".spl", "application/futuresplash"},
        {".src", "application/x-wais-source"},
        {".srf", "text/plain"},
        {".SSISDeploymentManifest", "text/xml"},
        {".ssm", "application/streamingmedia"},
        {".sst", "application/vnd.ms-pki.certstore"},
        {".stl", "application/vnd.ms-pki.stl"},
        {".sv4cpio", "application/x-sv4cpio"},
        {".sv4crc", "application/x-sv4crc"},
        {".svc", "application/xml"},
        {".swf", "application/x-shockwave-flash"},
        {".t", "application/x-troff"},
        {".tar", "application/x-tar"},
        {".tcl", "application/x-tcl"},
        {".testrunconfig", "application/xml"},
        {".testsettings", "application/xml"},
        {".tex", "application/x-tex"},
        {".texi", "application/x-texinfo"},
        {".texinfo", "application/x-texinfo"},
        {".tgz", "application/x-compressed"},
        {".thmx", "application/vnd.ms-officetheme"},
        {".thn", "application/octet-stream"},
        {".tif", "image/tiff"},
        {".tiff", "image/tiff"},
        {".tlh", "text/plain"},
        {".tli", "text/plain"},
        {".toc", "application/octet-stream"},
        {".tr", "application/x-troff"},
        {".trm", "application/x-msterminal"},
        {".trx", "application/xml"},
        {".ts", "video/vnd.dlna.mpeg-tts"},
        {".tsv", "text/tab-separated-values"},
        {".ttf", "application/octet-stream"},
        {".tts", "video/vnd.dlna.mpeg-tts"},
        {".txt", "text/plain"},
        {".u32", "application/octet-stream"},
        {".uls", "text/iuls"},
        {".user", "text/plain"},
        {".ustar", "application/x-ustar"},
        {".vb", "text/plain"},
        {".vbdproj", "text/plain"},
        {".vbk", "video/mpeg"},
        {".vbproj", "text/plain"},
        {".vbs", "text/vbscript"},
        {".vcf", "text/x-vcard"},
        {".vcproj", "Application/xml"},
        {".vcs", "text/plain"},
        {".vcxproj", "Application/xml"},
        {".vddproj", "text/plain"},
        {".vdp", "text/plain"},
        {".vdproj", "text/plain"},
        {".vdx", "application/vnd.ms-visio.viewer"},
        {".vml", "text/xml"},
        {".vscontent", "application/xml"},
        {".vsct", "text/xml"},
        {".vsd", "application/vnd.visio"},
        {".vsi", "application/ms-vsi"},
        {".vsix", "application/vsix"},
        {".vsixlangpack", "text/xml"},
        {".vsixmanifest", "text/xml"},
        {".vsmdi", "application/xml"},
        {".vspscc", "text/plain"},
        {".vss", "application/vnd.visio"},
        {".vsscc", "text/plain"},
        {".vssettings", "text/xml"},
        {".vssscc", "text/plain"},
        {".vst", "application/vnd.visio"},
        {".vstemplate", "text/xml"},
        {".vsto", "application/x-ms-vsto"},
        {".vsw", "application/vnd.visio"},
        {".vsx", "application/vnd.visio"},
        {".vtx", "application/vnd.visio"},
        {".wav", "audio/wav"},
        {".wave", "audio/wav"},
        {".wax", "audio/x-ms-wax"},
        {".wbk", "application/msword"},
        {".wbmp", "image/vnd.wap.wbmp"},
        {".wcm", "application/vnd.ms-works"},
        {".wdb", "application/vnd.ms-works"},
        {".wdp", "image/vnd.ms-photo"},
        {".webarchive", "application/x-safari-webarchive"},
        {".webtest", "application/xml"},
        {".wiq", "application/xml"},
        {".wiz", "application/msword"},
        {".wks", "application/vnd.ms-works"},
        {".WLMP", "application/wlmoviemaker"},
        {".wlpginstall", "application/x-wlpg-detect"},
        {".wlpginstall3", "application/x-wlpg3-detect"},
        {".wm", "video/x-ms-wm"},
        {".wma", "audio/x-ms-wma"},
        {".wmd", "application/x-ms-wmd"},
        {".wmf", "application/x-msmetafile"},
        {".wml", "text/vnd.wap.wml"},
        {".wmlc", "application/vnd.wap.wmlc"},
        {".wmls", "text/vnd.wap.wmlscript"},
        {".wmlsc", "application/vnd.wap.wmlscriptc"},
        {".wmp", "video/x-ms-wmp"},
        {".wmv", "video/x-ms-wmv"},
        {".wmx", "video/x-ms-wmx"},
        {".wmz", "application/x-ms-wmz"},
        {".wpl", "application/vnd.ms-wpl"},
        {".wps", "application/vnd.ms-works"},
        {".wri", "application/x-mswrite"},
        {".wrl", "x-world/x-vrml"},
        {".wrz", "x-world/x-vrml"},
        {".wsc", "text/scriptlet"},
        {".wsdl", "text/xml"},
        {".wvx", "video/x-ms-wvx"},
        {".x", "application/directx"},
        {".xaf", "x-world/x-vrml"},
        {".xaml", "application/xaml+xml"},
        {".xap", "application/x-silverlight-app"},
        {".xbap", "application/x-ms-xbap"},
        {".xbm", "image/x-xbitmap"},
        {".xdr", "text/plain"},
        {".xht", "application/xhtml+xml"},
        {".xhtml", "application/xhtml+xml"},
        {".xla", "application/vnd.ms-excel"},
        {".xlam", "application/vnd.ms-excel.addin.macroEnabled.12"},
        {".xlc", "application/vnd.ms-excel"},
        {".xld", "application/vnd.ms-excel"},
        {".xlk", "application/vnd.ms-excel"},
        {".xll", "application/vnd.ms-excel"},
        {".xlm", "application/vnd.ms-excel"},
        {".xls", "application/vnd.ms-excel"},
        {".xlsb", "application/vnd.ms-excel.sheet.binary.macroEnabled.12"},
        {".xlsm", "application/vnd.ms-excel.sheet.macroEnabled.12"},
        {".xlsx", "application/vnd.openxmlformats-officedocument.spreadsheetml.sheet"},
        {".xlt", "application/vnd.ms-excel"},
        {".xltm", "application/vnd.ms-excel.template.macroEnabled.12"},
        {".xltx", "application/vnd.openxmlformats-officedocument.spreadsheetml.template"},
        {".xlw", "application/vnd.ms-excel"},
        {".xml", "text/xml"},
        {".xmta", "application/xml"},
        {".xof", "x-world/x-vrml"},
        {".XOML", "text/plain"},
        {".xpm", "image/x-xpixmap"},
        {".xps", "application/vnd.ms-xpsdocument"},
        {".xrm-ms", "text/xml"},
        {".xsc", "application/xml"},
        {".xsd", "text/xml"},
        {".xsf", "text/xml"},
        {".xsl", "text/xml"},
        {".xslt", "text/xml"},
        {".xsn", "application/octet-stream"},
        {".xss", "application/xml"},
        {".xtp", "application/octet-stream"},
        {".xwd", "image/x-xwindowdump"},
        {".z", "application/x-compress"},
        {".zip", "application/x-zip-compressed"},
        #endregion

        };

    }
}
— Shimon Doodkin
kaynak
1
Kayıt başarılı olduktan sonra, sözlükte önbellekleyin
— Toddmo
8

Ben soru C # için biliyorum Sadece ben sadece Samuel'in cevabını dönüştürdü çünkü Javascript formatında ayrılmak istiyorum:

export const contentTypes = {

".323": "text/h323",
".3g2": "video/3gpp2",
".3gp": "video/3gpp",
".3gp2": "video/3gpp2",
".3gpp": "video/3gpp",
".7z": "application/x-7z-compressed",
".aa": "audio/audible",
".AAC": "audio/aac",
".aaf": "application/octet-stream",
".aax": "audio/vnd.audible.aax",
".ac3": "audio/ac3",
".aca": "application/octet-stream",
".accda": "application/msaccess.addin",
".accdb": "application/msaccess",
".accdc": "application/msaccess.cab",
".accde": "application/msaccess",
".accdr": "application/msaccess.runtime",
".accdt": "application/msaccess",
".accdw": "application/msaccess.webapplication",
".accft": "application/msaccess.ftemplate",
".acx": "application/internet-property-stream",
".AddIn": "text/xml",
".ade": "application/msaccess",
".adobebridge": "application/x-bridge-url",
".adp": "application/msaccess",
".ADT": "audio/vnd.dlna.adts",
".ADTS": "audio/aac",
".afm": "application/octet-stream",
".ai": "application/postscript",
".aif": "audio/x-aiff",
".aifc": "audio/aiff",
".aiff": "audio/aiff",
".air": "application/vnd.adobe.air-application-installer-package+zip",
".amc": "application/x-mpeg",
".application": "application/x-ms-application",
".art": "image/x-jg",
".asa": "application/xml",
".asax": "application/xml",
".ascx": "application/xml",
".asd": "application/octet-stream",
".asf": "video/x-ms-asf",
".ashx": "application/xml",
".asi": "application/octet-stream",
".asm": "text/plain",
".asmx": "application/xml",
".aspx": "application/xml",
".asr": "video/x-ms-asf",
".asx": "video/x-ms-asf",
".atom": "application/atom+xml",
".au": "audio/basic",
".avi": "video/x-msvideo",
".axs": "application/olescript",
".bas": "text/plain",
".bcpio": "application/x-bcpio",
".bin": "application/octet-stream",
".bmp": "image/bmp",
".c": "text/plain",
".cab": "application/octet-stream",
".caf": "audio/x-caf",
".calx": "application/vnd.ms-office.calx",
".cat": "application/vnd.ms-pki.seccat",
".cc": "text/plain",
".cd": "text/plain",
".cdda": "audio/aiff",
".cdf": "application/x-cdf",
".cer": "application/x-x509-ca-cert",
".chm": "application/octet-stream",
".class": "application/x-java-applet",
".clp": "application/x-msclip",
".cmx": "image/x-cmx",
".cnf": "text/plain",
".cod": "image/cis-cod",
".config": "application/xml",
".contact": "text/x-ms-contact",
".coverage": "application/xml",
".cpio": "application/x-cpio",
".cpp": "text/plain",
".crd": "application/x-mscardfile",
".crl": "application/pkix-crl",
".crt": "application/x-x509-ca-cert",
".cs": "text/plain",
".csdproj": "text/plain",
".csh": "application/x-csh",
".csproj": "text/plain",
".css": "text/css",
".csv": "text/csv",
".cur": "application/octet-stream",
".cxx": "text/plain",
".dat": "application/octet-stream",
".datasource": "application/xml",
".dbproj": "text/plain",
".dcr": "application/x-director",
".def": "text/plain",
".deploy": "application/octet-stream",
".der": "application/x-x509-ca-cert",
".dgml": "application/xml",
".dib": "image/bmp",
".dif": "video/x-dv",
".dir": "application/x-director",
".disco": "text/xml",
".dll": "application/x-msdownload",
".dll.config": "text/xml",
".dlm": "text/dlm",
".doc": "application/msword",
".docm": "application/vnd.ms-word.document.macroEnabled.12",
".docx": "application/vnd.openxmlformats-officedocument.wordprocessingml.document",
".dot": "application/msword",
".dotm": "application/vnd.ms-word.template.macroEnabled.12",
".dotx": "application/vnd.openxmlformats-officedocument.wordprocessingml.template",
".dsp": "application/octet-stream",
".dsw": "text/plain",
".dtd": "text/xml",
".dtsConfig": "text/xml",
".dv": "video/x-dv",
".dvi": "application/x-dvi",
".dwf": "drawing/x-dwf",
".dwp": "application/octet-stream",
".dxr": "application/x-director",
".eml": "message/rfc822",
".emz": "application/octet-stream",
".eot": "application/octet-stream",
".eps": "application/postscript",
".etl": "application/etl",
".etx": "text/x-setext",
".evy": "application/envoy",
".exe": "application/octet-stream",
".exe.config": "text/xml",
".fdf": "application/vnd.fdf",
".fif": "application/fractals",
".filters": "Application/xml",
".fla": "application/octet-stream",
".flr": "x-world/x-vrml",
".flv": "video/x-flv",
".fsscript": "application/fsharp-script",
".fsx": "application/fsharp-script",
".generictest": "application/xml",
".gif": "image/gif",
".group": "text/x-ms-group",
".gsm": "audio/x-gsm",
".gtar": "application/x-gtar",
".gz": "application/x-gzip",
".h": "text/plain",
".hdf": "application/x-hdf",
".hdml": "text/x-hdml",
".hhc": "application/x-oleobject",
".hhk": "application/octet-stream",
".hhp": "application/octet-stream",
".hlp": "application/winhlp",
".hpp": "text/plain",
".hqx": "application/mac-binhex40",
".hta": "application/hta",
".htc": "text/x-component",
".htm": "text/html",
".html": "text/html",
".htt": "text/webviewhtml",
".hxa": "application/xml",
".hxc": "application/xml",
".hxd": "application/octet-stream",
".hxe": "application/xml",
".hxf": "application/xml",
".hxh": "application/octet-stream",
".hxi": "application/octet-stream",
".hxk": "application/xml",
".hxq": "application/octet-stream",
".hxr": "application/octet-stream",
".hxs": "application/octet-stream",
".hxt": "text/html",
".hxv": "application/xml",
".hxw": "application/octet-stream",
".hxx": "text/plain",
".i": "text/plain",
".ico": "image/x-icon",
".ics": "application/octet-stream",
".idl": "text/plain",
".ief": "image/ief",
".iii": "application/x-iphone",
".inc": "text/plain",
".inf": "application/octet-stream",
".inl": "text/plain",
".ins": "application/x-internet-signup",
".ipa": "application/x-itunes-ipa",
".ipg": "application/x-itunes-ipg",
".ipproj": "text/plain",
".ipsw": "application/x-itunes-ipsw",
".iqy": "text/x-ms-iqy",
".isp": "application/x-internet-signup",
".ite": "application/x-itunes-ite",
".itlp": "application/x-itunes-itlp",
".itms": "application/x-itunes-itms",
".itpc": "application/x-itunes-itpc",
".IVF": "video/x-ivf",
".jar": "application/java-archive",
".java": "application/octet-stream",
".jck": "application/liquidmotion",
".jcz": "application/liquidmotion",
".jfif": "image/pjpeg",
".jnlp": "application/x-java-jnlp-file",
".jpb": "application/octet-stream",
".jpe": "image/jpeg",
".jpeg": "image/jpeg",
".jpg": "image/jpeg",
".js": "application/x-javascript",
".json": "application/json",
".jsx": "text/jscript",
".jsxbin": "text/plain",
".latex": "application/x-latex",
".library-ms": "application/windows-library+xml",
".lit": "application/x-ms-reader",
".loadtest": "application/xml",
".lpk": "application/octet-stream",
".lsf": "video/x-la-asf",
".lst": "text/plain",
".lsx": "video/x-la-asf",
".lzh": "application/octet-stream",
".m13": "application/x-msmediaview",
".m14": "application/x-msmediaview",
".m1v": "video/mpeg",
".m2t": "video/vnd.dlna.mpeg-tts",
".m2ts": "video/vnd.dlna.mpeg-tts",
".m2v": "video/mpeg",
".m3u": "audio/x-mpegurl",
".m3u8": "audio/x-mpegurl",
".m4a": "audio/m4a",
".m4b": "audio/m4b",
".m4p": "audio/m4p",
".m4r": "audio/x-m4r",
".m4v": "video/x-m4v",
".mac": "image/x-macpaint",
".mak": "text/plain",
".man": "application/x-troff-man",
".manifest": "application/x-ms-manifest",
".map": "text/plain",
".master": "application/xml",
".mda": "application/msaccess",
".mdb": "application/x-msaccess",
".mde": "application/msaccess",
".mdp": "application/octet-stream",
".me": "application/x-troff-me",
".mfp": "application/x-shockwave-flash",
".mht": "message/rfc822",
".mhtml": "message/rfc822",
".mid": "audio/mid",
".midi": "audio/mid",
".mix": "application/octet-stream",
".mk": "text/plain",
".mmf": "application/x-smaf",
".mno": "text/xml",
".mny": "application/x-msmoney",
".mod": "video/mpeg",
".mov": "video/quicktime",
".movie": "video/x-sgi-movie",
".mp2": "video/mpeg",
".mp2v": "video/mpeg",
".mp3": "audio/mpeg",
".mp4": "video/mp4",
".mp4v": "video/mp4",
".mpa": "video/mpeg",
".mpe": "video/mpeg",
".mpeg": "video/mpeg",
".mpf": "application/vnd.ms-mediapackage",
".mpg": "video/mpeg",
".mpp": "application/vnd.ms-project",
".mpv2": "video/mpeg",
".mqv": "video/quicktime",
".ms": "application/x-troff-ms",
".msi": "application/octet-stream",
".mso": "application/octet-stream",
".mts": "video/vnd.dlna.mpeg-tts",
".mtx": "application/xml",
".mvb": "application/x-msmediaview",
".mvc": "application/x-miva-compiled",
".mxp": "application/x-mmxp",
".nc": "application/x-netcdf",
".nsc": "video/x-ms-asf",
".nws": "message/rfc822",
".ocx": "application/octet-stream",
".oda": "application/oda",
".odc": "text/x-ms-odc",
".odh": "text/plain",
".odl": "text/plain",
".odp": "application/vnd.oasis.opendocument.presentation",
".ods": "application/oleobject",
".odt": "application/vnd.oasis.opendocument.text",
".one": "application/onenote",
".onea": "application/onenote",
".onepkg": "application/onenote",
".onetmp": "application/onenote",
".onetoc": "application/onenote",
".onetoc2": "application/onenote",
".orderedtest": "application/xml",
".osdx": "application/opensearchdescription+xml",
".p10": "application/pkcs10",
".p12": "application/x-pkcs12",
".p7b": "application/x-pkcs7-certificates",
".p7c": "application/pkcs7-mime",
".p7m": "application/pkcs7-mime",
".p7r": "application/x-pkcs7-certreqresp",
".p7s": "application/pkcs7-signature",
".pbm": "image/x-portable-bitmap",
".pcast": "application/x-podcast",
".pct": "image/pict",
".pcx": "application/octet-stream",
".pcz": "application/octet-stream",
".pdf": "application/pdf",
".pfb": "application/octet-stream",
".pfm": "application/octet-stream",
".pfx": "application/x-pkcs12",
".pgm": "image/x-portable-graymap",
".pic": "image/pict",
".pict": "image/pict",
".pkgdef": "text/plain",
".pkgundef": "text/plain",
".pko": "application/vnd.ms-pki.pko",
".pls": "audio/scpls",
".pma": "application/x-perfmon",
".pmc": "application/x-perfmon",
".pml": "application/x-perfmon",
".pmr": "application/x-perfmon",
".pmw": "application/x-perfmon",
".png": "image/png",
".pnm": "image/x-portable-anymap",
".pnt": "image/x-macpaint",
".pntg": "image/x-macpaint",
".pnz": "image/png",
".pot": "application/vnd.ms-powerpoint",
".potm": "application/vnd.ms-powerpoint.template.macroEnabled.12",
".potx": "application/vnd.openxmlformats-officedocument.presentationml.template",
".ppa": "application/vnd.ms-powerpoint",
".ppam": "application/vnd.ms-powerpoint.addin.macroEnabled.12",
".ppm": "image/x-portable-pixmap",
".pps": "application/vnd.ms-powerpoint",
".ppsm": "application/vnd.ms-powerpoint.slideshow.macroEnabled.12",
".ppsx": "application/vnd.openxmlformats-officedocument.presentationml.slideshow",
".ppt": "application/vnd.ms-powerpoint",
".pptm": "application/vnd.ms-powerpoint.presentation.macroEnabled.12",
".pptx": "application/vnd.openxmlformats-officedocument.presentationml.presentation",
".prf": "application/pics-rules",
".prm": "application/octet-stream",
".prx": "application/octet-stream",
".ps": "application/postscript",
".psc1": "application/PowerShell",
".psd": "application/octet-stream",
".psess": "application/xml",
".psm": "application/octet-stream",
".psp": "application/octet-stream",
".pub": "application/x-mspublisher",
".pwz": "application/vnd.ms-powerpoint",
".qht": "text/x-html-insertion",
".qhtm": "text/x-html-insertion",
".qt": "video/quicktime",
".qti": "image/x-quicktime",
".qtif": "image/x-quicktime",
".qtl": "application/x-quicktimeplayer",
".qxd": "application/octet-stream",
".ra": "audio/x-pn-realaudio",
".ram": "audio/x-pn-realaudio",
".rar": "application/octet-stream",
".ras": "image/x-cmu-raster",
".rat": "application/rat-file",
".rc": "text/plain",
".rc2": "text/plain",
".rct": "text/plain",
".rdlc": "application/xml",
".resx": "application/xml",
".rf": "image/vnd.rn-realflash",
".rgb": "image/x-rgb",
".rgs": "text/plain",
".rm": "application/vnd.rn-realmedia",
".rmi": "audio/mid",
".rmp": "application/vnd.rn-rn_music_package",
".roff": "application/x-troff",
".rpm": "audio/x-pn-realaudio-plugin",
".rqy": "text/x-ms-rqy",
".rtf": "application/rtf",
".rtx": "text/richtext",
".ruleset": "application/xml",
".s": "text/plain",
".safariextz": "application/x-safari-safariextz",
".scd": "application/x-msschedule",
".sct": "text/scriptlet",
".sd2": "audio/x-sd2",
".sdp": "application/sdp",
".sea": "application/octet-stream",
".searchConnector-ms": "application/windows-search-connector+xml",
".setpay": "application/set-payment-initiation",
".setreg": "application/set-registration-initiation",
".settings": "application/xml",
".sgimb": "application/x-sgimb",
".sgml": "text/sgml",
".sh": "application/x-sh",
".shar": "application/x-shar",
".shtml": "text/html",
".sit": "application/x-stuffit",
".sitemap": "application/xml",
".skin": "application/xml",
".sldm": "application/vnd.ms-powerpoint.slide.macroEnabled.12",
".sldx": "application/vnd.openxmlformats-officedocument.presentationml.slide",
".slk": "application/vnd.ms-excel",
".sln": "text/plain",
".slupkg-ms": "application/x-ms-license",
".smd": "audio/x-smd",
".smi": "application/octet-stream",
".smx": "audio/x-smd",
".smz": "audio/x-smd",
".snd": "audio/basic",
".snippet": "application/xml",
".snp": "application/octet-stream",
".sol": "text/plain",
".sor": "text/plain",
".spc": "application/x-pkcs7-certificates",
".spl": "application/futuresplash",
".src": "application/x-wais-source",
".srf": "text/plain",
".SSISDeploymentManifest": "text/xml",
".ssm": "application/streamingmedia",
".sst": "application/vnd.ms-pki.certstore",
".stl": "application/vnd.ms-pki.stl",
".sv4cpio": "application/x-sv4cpio",
".sv4crc": "application/x-sv4crc",
".svc": "application/xml",
".swf": "application/x-shockwave-flash",
".t": "application/x-troff",
".tar": "application/x-tar",
".tcl": "application/x-tcl",
".testrunconfig": "application/xml",
".testsettings": "application/xml",
".tex": "application/x-tex",
".texi": "application/x-texinfo",
".texinfo": "application/x-texinfo",
".tgz": "application/x-compressed",
".thmx": "application/vnd.ms-officetheme",
".thn": "application/octet-stream",
".tif": "image/tiff",
".tiff": "image/tiff",
".tlh": "text/plain",
".tli": "text/plain",
".toc": "application/octet-stream",
".tr": "application/x-troff",
".trm": "application/x-msterminal",
".trx": "application/xml",
".ts": "video/vnd.dlna.mpeg-tts",
".tsv": "text/tab-separated-values",
".ttf": "application/octet-stream",
".tts": "video/vnd.dlna.mpeg-tts",
".txt": "text/plain",
".u32": "application/octet-stream",
".uls": "text/iuls",
".user": "text/plain",
".ustar": "application/x-ustar",
".vb": "text/plain",
".vbdproj": "text/plain",
".vbk": "video/mpeg",
".vbproj": "text/plain",
".vbs": "text/vbscript",
".vcf": "text/x-vcard",
".vcproj": "Application/xml",
".vcs": "text/plain",
".vcxproj": "Application/xml",
".vddproj": "text/plain",
".vdp": "text/plain",
".vdproj": "text/plain",
".vdx": "application/vnd.ms-visio.viewer",
".vml": "text/xml",
".vscontent": "application/xml",
".vsct": "text/xml",
".vsd": "application/vnd.visio",
".vsi": "application/ms-vsi",
".vsix": "application/vsix",
".vsixlangpack": "text/xml",
".vsixmanifest": "text/xml",
".vsmdi": "application/xml",
".vspscc": "text/plain",
".vss": "application/vnd.visio",
".vsscc": "text/plain",
".vssettings": "text/xml",
".vssscc": "text/plain",
".vst": "application/vnd.visio",
".vstemplate": "text/xml",
".vsto": "application/x-ms-vsto",
".vsw": "application/vnd.visio",
".vsx": "application/vnd.visio",
".vtx": "application/vnd.visio",
".wav": "audio/wav",
".wave": "audio/wav",
".wax": "audio/x-ms-wax",
".wbk": "application/msword",
".wbmp": "image/vnd.wap.wbmp",
".wcm": "application/vnd.ms-works",
".wdb": "application/vnd.ms-works",
".wdp": "image/vnd.ms-photo",
".webarchive": "application/x-safari-webarchive",
".webtest": "application/xml",
".wiq": "application/xml",
".wiz": "application/msword",
".wks": "application/vnd.ms-works",
".WLMP": "application/wlmoviemaker",
".wlpginstall": "application/x-wlpg-detect",
".wlpginstall3": "application/x-wlpg3-detect",
".wm": "video/x-ms-wm",
".wma": "audio/x-ms-wma",
".wmd": "application/x-ms-wmd",
".wmf": "application/x-msmetafile",
".wml": "text/vnd.wap.wml",
".wmlc": "application/vnd.wap.wmlc",
".wmls": "text/vnd.wap.wmlscript",
".wmlsc": "application/vnd.wap.wmlscriptc",
".wmp": "video/x-ms-wmp",
".wmv": "video/x-ms-wmv",
".wmx": "video/x-ms-wmx",
".wmz": "application/x-ms-wmz",
".wpl": "application/vnd.ms-wpl",
".wps": "application/vnd.ms-works",
".wri": "application/x-mswrite",
".wrl": "x-world/x-vrml",
".wrz": "x-world/x-vrml",
".wsc": "text/scriptlet",
".wsdl": "text/xml",
".wvx": "video/x-ms-wvx",
".x": "application/directx",
".xaf": "x-world/x-vrml",
".xaml": "application/xaml+xml",
".xap": "application/x-silverlight-app",
".xbap": "application/x-ms-xbap",
".xbm": "image/x-xbitmap",
".xdr": "text/plain",
".xht": "application/xhtml+xml",
".xhtml": "application/xhtml+xml",
".xla": "application/vnd.ms-excel",
".xlam": "application/vnd.ms-excel.addin.macroEnabled.12",
".xlc": "application/vnd.ms-excel",
".xld": "application/vnd.ms-excel",
".xlk": "application/vnd.ms-excel",
".xll": "application/vnd.ms-excel",
".xlm": "application/vnd.ms-excel",
".xls": "application/vnd.ms-excel",
".xlsb": "application/vnd.ms-excel.sheet.binary.macroEnabled.12",
".xlsm": "application/vnd.ms-excel.sheet.macroEnabled.12",
".xlsx": "application/vnd.openxmlformats-officedocument.spreadsheetml.sheet",
".xlt": "application/vnd.ms-excel",
".xltm": "application/vnd.ms-excel.template.macroEnabled.12",
".xltx": "application/vnd.openxmlformats-officedocument.spreadsheetml.template",
".xlw": "application/vnd.ms-excel",
".xml": "text/xml",
".xmta": "application/xml",
".xof": "x-world/x-vrml",
".XOML": "text/plain",
".xpm": "image/x-xpixmap",
".xps": "application/vnd.ms-xpsdocument",
".xrm-ms": "text/xml",
".xsc": "application/xml",
".xsd": "text/xml",
".xsf": "text/xml",
".xsl": "text/xml",
".xslt": "text/xml",
".xsn": "application/octet-stream",
".xss": "application/xml",
".xtp": "application/octet-stream",
".xwd": "image/x-xwindowdump",
".z": "application/x-compress",
".zip": "application/x-zip-compressed"
}
— Abel Valdez
kaynak
5

Gönderiyi daha kapsamlı hale getirmek için .NET Core geliştiricileri için resmi MIME içerik türlerini kapsayan FileExtensionContentTypeProvider sınıfı vardır .

Sahnenin arkasında çalışır - Http Response başlıklarında ContentType'ı dosya adı uzantısına göre ayarlar.

Özel MIME türlerine ihtiyacınız varsa , MIME türlerini özelleştirme örneğine bakın :

public void Configure(IApplicationBuilder app)
{
    // Set up custom content types -associating file extension to MIME type
    var provider = new FileExtensionContentTypeProvider();
    // Add new mappings
    provider.Mappings[".myapp"] = "application/x-msdownload";
    provider.Mappings[".htm3"] = "text/html";
    provider.Mappings[".image"] = "image/png";
    // Replace an existing mapping
    provider.Mappings[".rtf"] = "application/x-msdownload";
    // Remove MP4 videos.
    provider.Mappings.Remove(".mp4");

    app.UseStaticFiles(new StaticFileOptions()
    {
        FileProvider = new PhysicalFileProvider(
            Path.Combine(Directory.GetCurrentDirectory(), @"wwwroot", "images")),
        RequestPath = new PathString("/MyImages"),
        ContentTypeProvider = provider
    });

    app.UseDirectoryBrowser(new DirectoryBrowserOptions()
    {
        FileProvider = new PhysicalFileProvider(
            Path.Combine(Directory.GetCurrentDirectory(), @"wwwroot", "images")),
        RequestPath = new PathString("/MyImages")
    });
}
— Alex Klaus
kaynak
1
bunu bize bildirdiğiniz için teşekkürler. Sizin için sadece bir ipucu: Web uygulamanızın kök klasörünü almak için _hostingEnvironment.WebRootPath kullanmalısınız - buraya
— Sven
4

Çözümlerin çoğu işe yarıyor ama neden bu kadar çaba harcıyoruz, aynı zamanda mim tipini de çok kolay alabiliriz. System.Web derlemesinde, dosya adından mime türünü alma yöntemi vardır. Örneğin:

string mimeType = MimeMapping.GetMimeMapping(filename);
— Arun Sharma
kaynak
7
Aynı cevap 3 yıl önce bu sayfada verilmiştir. stackoverflow.com/a/14108040/315445
— Null Kafa
2

Samuel'in cevabından esinlenerek geliştirilmiş bir versiyon yazdım:

Ortaya çıkan kaynak kodu 30K karakterden fazla, bu yüzden buraya gönderemiyorum , Github'da kontrol edin .

— Nicolas Raoul
kaynak
2

** MediaTypeNames Sınıfını Kullan -> örnek: MediaTypeNames.Application.Pdf ** resim açıklamasını buraya girin

— AminGolmahalle
kaynak
1
MediaTypeNamesWeb API kullanarak bir şey döndürürken sihirli dizeler istemiyorsanız kullanışlı olsa da HttpResponseMessage, aslında OP tarafından sorulanın tersidir.
— nrodic
1

Apache'nin httpd'sinden sağlanan tabloyu kullanabilirsiniz . Bunu bir işlev, sözlük, liste vb. İle eşleştirmek önemsiz olmalıdır.

Ayrıca, burada görüldüğü gibi , uzantı-> mime türü mutlaka bir işlev değildir. Dosya uzantısı başına birden çok ortak MIME türü olabilir, bu nedenle uygulamanızın gereksinimlerine bakmalı ve neden MIME türlerini, onlarla "ne yapmak istediğinizi" vb. Önemsediğinizi görmelisiniz. Anahtar için dosya uzantılarını kullanabilir misiniz? aynı davranış? Bir dosyanın MIME türünü de belirlemek için ilk birkaç baytını okumalısınız?

— maxwellb
kaynak
1

Dosya uzantılarının mime türlerine ve mime türlerinin dosya uzantılarına iki yönlü büyük bir eşlemesini sağlayan MimeTypeMap paketini kullanın

MimeTypes kullanarak;

Mime türünün bir uzantıya getirilmesi

Console.WriteLine("txt -> " + MimeTypeMap.GetMimeType("txt"));  // "text/plain"

Bir mime türüne uzantı alma

Console.WriteLine("audio/wav -> " + MimeTypeMap.GetExtension("audio/wav")); // ".wav"

GitHub Url: https://github.com/samuelneff/MimeTypeMap

— Bibin Gangadharan
kaynak
0

Ek bağımlılıkları eklemek istediğiniz ve hala sürüm bağımsız istekleri istemiyorsanız, karıştırabilir farklı .NET sürümlerinde MIME türü almak için nasıl bu cevabı ile Şartlı bu cevabı birden .NET Framework sürümleri için inşa .

İlk yaptığım şey proje dosyamı düzenlemekti. Son derleme tanımından sonra, ikinci cevapta belirtildiği gibi özellik grubunu ekledim:

<PropertyGroup>
    <DefineConstants Condition=" !$(DefineConstants.Contains(';NET')) ">$(DefineConstants);$(TargetFrameworkVersion.Replace("v", "NET").Replace(".", ""))</DefineConstants>
    <DefineConstants Condition=" $(DefineConstants.Contains(';NET')) ">$(DefineConstants.Remove($(DefineConstants.LastIndexOf(";NET"))));$(TargetFrameworkVersion.Replace("v", "NET").Replace(".", ""))</DefineConstants>
</PropertyGroup>

Şimdi MimeExtensionHelper, ilk cevaptan farklı bir uygulama sağladım, .NET 4.5 veya daha sonraki tüm istemciler için ek bir çağrı System.Web.MimeMapping.GetMimeMapping:

#if (NET10 || NET11 || NET20 || NET30 || NET35)
public static class MimeExtensionHelper
{
    static object locker = new object();
    static MethodInfo getMimeMappingMethodInfo;

    static MimeExtensionHelper()
    {
        Type mimeMappingType = Assembly.GetAssembly(typeof(HttpRuntime)).GetType("System.Web.MimeMapping");

        if (mimeMappingType == null)
            throw new SystemException("Couldnt find MimeMapping type");

        ConstructorInfo constructorInfo = mimeMappingType.GetConstructor(BindingFlags.NonPublic | BindingFlags.Instance, null, Type.EmptyTypes, null);

        if (constructorInfo == null)
            throw new SystemException("Couldnt find default constructor for MimeMapping");

        mimeMapping = constructorInfo.Invoke(null);

        if (mimeMapping == null)
            throw new SystemException("Couldnt find MimeMapping");

        getMimeMappingMethodInfo = mimeMappingType.GetMethod("GetMimeMapping", BindingFlags.Static | BindingFlags.NonPublic);

        if (getMimeMappingMethodInfo == null)
            throw new SystemException("Couldnt find GetMimeMapping method");

        if (getMimeMappingMethodInfo.ReturnType != typeof(string))
            throw new SystemException("GetMimeMapping method has invalid return type");

        if (getMimeMappingMethodInfo.GetParameters().Length != 1 && getMimeMappingMethodInfo.GetParameters()[0].ParameterType != typeof(string))
            throw new SystemException("GetMimeMapping method has invalid parameters");
    }

    public static string GetMimeType(string fileName)
    {
        lock (locker)
        {
            return (string)getMimeMappingMethodInfo.Invoke(null, new object[] { fileName });
        }
    }
}
#elif NET40
public static class MimeExtensionHelper
{
    static object locker = new object();
    static MethodInfo getMimeMappingMethodInfo;

    static MimeExtensionHelper()
    {
        Type mimeMappingType = Assembly.GetAssembly(typeof(HttpRuntime)).GetType("System.Web.MimeMapping");

        if (mimeMappingType == null)
            throw new SystemException("Couldnt find MimeMapping type");           

        getMimeMappingMethodInfo = mimeMappingType.GetMethod("GetMimeMapping", BindingFlags.Static | BindingFlags.NonPublic | BindingFlags.Public);

        if (getMimeMappingMethodInfo == null)
            throw new SystemException("Couldnt find GetMimeMapping method");

        if (getMimeMappingMethodInfo.ReturnType != typeof(string))
            throw new SystemException("GetMimeMapping method has invalid return type");

        if (getMimeMappingMethodInfo.GetParameters().Length != 1 && getMimeMappingMethodInfo.GetParameters()[0].ParameterType != typeof(string))
            throw new SystemException("GetMimeMapping method has invalid parameters");
    }

    public static string GetMimeType(string fileName)
    {
        lock (locker)
        {
            return (string)getMimeMappingMethodInfo.Invoke(null, new object[] { fileName });
        }
    }
}
#else // .NET 4.5 or later
public static class MimeExtensionHelper
{
    public static string GetMimeType(string fileName)
    {
        return MimeMapping.GetMimeMapping(fileName);
    }
}
#endif

Ayrıca .NET 4.5'ten önceki sürümlerde, statik MimeMappingsınıf , henüz desteklenmeyen yeni MIME Türleri eklemek için Reflection'dan isteyebileceğiniz _mappingDictionary(tür MimeMapping.MimeMappingDictionaryBase) adlı statik bir örneği barındırır .

— Carsten
kaynak
0

Dosyanın uzantısıyla hesaplanan mime türünün her zaman doğru olması her zaman gerekli değildir.

diyelim ki .png uzantılı bir dosyayı kaydedebilirim ama "ImageFormat.jpeg" olarak ayarlayabildiğim dosya biçimi.

Bu durumda, hesaplayacağınız dosya farklı bir sonuç verecektir ... orijinalden daha büyük boyutlu bir dosyaya neden olabilir.

Görüntülerle çalışıyorsanız, imagecodecInfo ve ImageFormat öğelerini kullanabilirsiniz.

— Samuel Sevinç
kaynak
0

Tüm uzantıların kayıt defterinde "İçerik Türü" alt anahtarı olmadığı için Bryan Denny'nin yukarıdaki yayını benim için çalışmıyor. Aşağıdaki gibi kod tweak gerekiyordu:

private string GetMimeType(string sFileName)
{
  // Get file extension and if it is empty, return unknown
  string sExt = Path.GetExtension(sFileName);
  if (string.IsNullOrEmpty(sExt)) return "Unknown file type";

  // Default type is "EXT File"
  string mimeType = string.Format("{0} File", sExt.ToUpper().Replace(".", ""));

  // Open the registry key for the extension under HKEY_CLASSES_ROOT and return default if it doesn't exist
  Microsoft.Win32.RegistryKey regKey = Microsoft.Win32.Registry.ClassesRoot.OpenSubKey(sExt);
  if (regKey == null) return mimeType;

  // Get the "(Default)" value and re-open the key for that value
  string sSubType = regKey.GetValue("").ToString();
  regKey = Microsoft.Win32.Registry.ClassesRoot.OpenSubKey(sSubType);

  // If it exists, get the "(Default)" value of the new key
  if (regKey?.GetValue("") != null) mimeType = regKey.GetValue("").ToString();

  // Return the value
  return mimeType;
}

Şimdi tüm kayıtlı dosya türleri ve kaydedilmemiş veya genel dosya türleri (JPG, vb.) İçin benim için iyi çalışıyor.

— Jaisimha
kaynak
0

Yalnızca dosya uzantısında (şu anda) anahtarlanan mime türü ve içerik türü değerleri için saygın kaynakların bir listesini derledim.

Nuget paketi burada https://www.nuget.org/packages/FTTLib.dll/

ve kaynak burada https://github.com/brondavies/filetypetranslator/

Bu kütüphane aşağıdakilere sahip olacak şekilde tasarlanmıştır:

  • Harici bağımlılık yok
  • Dosya sistemi erişimi yok
  • Küçük bellek alanı
  • Basit statik yöntemler (genişletme yöntemi yok ve anlık sınıflar yok)
  • Büyük küçük harf duyarlı
  • Taşınabilir - herhangi bir CLR'yi (.NET 2.0+) hedefleyen uygulamalarda çalışır
— Bron Davies
kaynak
0

Bu yardımcı sınıf, herhangi bir dosya adı için mime türü (içerik türü), açıklama ve simgeler döndürür:

using Microsoft.Win32;
using System;
using System.Drawing;
using System.IO;
using System.Runtime.InteropServices;

public static class Helper
{
    [DllImport("shell32.dll", CharSet = CharSet.Auto)]
    private static extern int ExtractIconEx(string lpszFile, int nIconIndex, IntPtr[] phIconLarge, IntPtr[] phIconSmall, int nIcons);

    [DllImport("user32.dll", SetLastError = true)]
    private static extern int DestroyIcon(IntPtr hIcon);

    public static string GetFileContentType(string fileName)
    {
        if (fileName == null)
        {
            throw new ArgumentNullException("fileName");
        }

        RegistryKey registryKey = null;
        try
        {
            FileInfo fileInfo = new FileInfo(fileName);

            if (string.IsNullOrEmpty(fileInfo.Extension))
            {
                return string.Empty;
            }

            string extension = fileInfo.Extension.ToLowerInvariant();

            registryKey = Registry.ClassesRoot.OpenSubKey(extension);
            if (registryKey == null)
            {
                return string.Empty;
            }

            object contentTypeObject = registryKey.GetValue("Content Type");
            if (!(contentTypeObject is string))
            {
                return string.Empty;
            }

            string contentType = (string)contentTypeObject;

            return contentType;
        }
        catch (Exception)
        {
            return null;
        }
        finally
        {
            if (registryKey != null)
            {
                registryKey.Close();
            }
        }
    }

    public static string GetFileDescription(string fileName)
    {
        if (fileName == null)
        {
            throw new ArgumentNullException("fileName");
        }

        RegistryKey registryKey1 = null;
        RegistryKey registryKey2 = null;
        try
        {
            FileInfo fileInfo = new FileInfo(fileName);

            if (string.IsNullOrEmpty(fileInfo.Extension))
            {
                return string.Empty;
            }

            string extension = fileInfo.Extension.ToLowerInvariant();

            registryKey1 = Registry.ClassesRoot.OpenSubKey(extension);
            if (registryKey1 == null)
            {
                return string.Empty;
            }

            object extensionDefaultObject = registryKey1.GetValue(null);
            if (!(extensionDefaultObject is string))
            {
                return string.Empty;
            }

            string extensionDefaultValue = (string)extensionDefaultObject;

            registryKey2 = Registry.ClassesRoot.OpenSubKey(extensionDefaultValue);
            if (registryKey2 == null)
            {
                return string.Empty;
            }

            object fileDescriptionObject = registryKey2.GetValue(null);
            if (!(fileDescriptionObject is string))
            {
                return string.Empty;
            }

            string fileDescription = (string)fileDescriptionObject;
            return fileDescription;
        }
        catch (Exception)
        {
            return null;
        }
        finally
        {
            if (registryKey2 != null)
            {
                registryKey2.Close();
            }

            if (registryKey1 != null)
            {
                registryKey1.Close();
            }
        }
    }

    public static void GetFileIcons(string fileName, out Icon smallIcon, out Icon largeIcon)
    {
        if (fileName == null)
        {
            throw new ArgumentNullException("fileName");
        }

        smallIcon = null;
        largeIcon = null;

        RegistryKey registryKey1 = null;
        RegistryKey registryKey2 = null;
        try
        {
            FileInfo fileInfo = new FileInfo(fileName);

            if (string.IsNullOrEmpty(fileInfo.Extension))
            {
                return;
            }

            string extension = fileInfo.Extension.ToLowerInvariant();

            registryKey1 = Registry.ClassesRoot.OpenSubKey(extension);
            if (registryKey1 == null)
            {
                return;
            }

            object extensionDefaultObject = registryKey1.GetValue(null);
            if (!(extensionDefaultObject is string))
            {
                return;
            }

            string defaultIconKeyName = string.Format("{0}\\DefaultIcon", extensionDefaultObject);

            registryKey2 = Registry.ClassesRoot.OpenSubKey(defaultIconKeyName);
            if (registryKey2 == null)
            {
                return;
            }

            object defaultIconPathObject = registryKey2.GetValue(null);
            if (!(defaultIconPathObject is string))
            {
                return;
            }

            string defaultIconPath = (string)defaultIconPathObject;
            if (string.IsNullOrWhiteSpace(defaultIconPath))
            {
                return;
            }

            string iconfileName = null;
            int iconIndex = 0;

            int commaIndex = defaultIconPath.IndexOf(",");
            if (commaIndex > 0)
            {
                iconfileName = defaultIconPath.Substring(0, commaIndex);
                string iconIndexString = defaultIconPath.Substring(commaIndex + 1);

                if (!int.TryParse(iconIndexString, out iconIndex))
                {
                    iconIndex = 0;
                }
            }
            else
            {
                iconfileName = defaultIconPath;
                iconIndex = 0;
            }

            IntPtr[] phiconSmall = new IntPtr[1] { IntPtr.Zero };
            IntPtr[] phiconLarge = new IntPtr[1] { IntPtr.Zero };

            int readIconCount = ExtractIconEx(iconfileName, iconIndex, phiconLarge, phiconSmall, 1);

            if (readIconCount < 0)
            {
                return;
            }

            if (phiconSmall[0] != IntPtr.Zero)
            {
                smallIcon = (Icon)Icon.FromHandle(phiconSmall[0]).Clone();
                DestroyIcon(phiconSmall[0]);
            }

            if (phiconLarge[0] != IntPtr.Zero)
            {
                largeIcon = (Icon)Icon.FromHandle(phiconLarge[0]).Clone();
                DestroyIcon(phiconLarge[0]);
            }

            return;
        }
        finally
        {
            if (registryKey2 != null)
            {
                registryKey2.Close();
            }

            if (registryKey1 != null)
            {
                registryKey1.Close();
            }
        }
    }
}

Kullanımı :

string fileName = "NotExists.txt";
string contentType = Helper.GetFileContentType(fileName); // "text/plain"
string description = Helper.GetFileDescription(fileName); // "Text Document"
Icon smallIcon, largeIcon;
Helper.GetFileIcons(fileName, out smallIcon, out largeIcon); // 16x16, 32x32 icons
— Amir Saniyan
kaynak
0

Apache listesini kullanarak şu mime türlerini almam, aşağıdaki komut dosyası size tüm mime türleriyle bir sözlük verecektir.

var mimeTypeListUrl = "http://svn.apache.org/repos/asf/httpd/httpd/trunk/docs/conf/mime.types";
var webClient = new WebClient();
var rawData = webClient.DownloadString(mimeTypeListUrl).Split(new[] { Environment.NewLine, "\n" }, StringSplitOptions.RemoveEmptyEntries);

var extensionToMimeType = new Dictionary<string, string>();
var mimeTypeToExtension = new Dictionary<string, string[]>();

foreach (var row in rawData)
{
    if (row.StartsWith("#")) continue;

    var rowData = row.Split(new[] { "\t" }, StringSplitOptions.RemoveEmptyEntries);
    if (rowData.Length != 2) continue;

    var extensions = rowData[1].Split(new[] { " " }, StringSplitOptions.RemoveEmptyEntries);
    if (!mimeTypeToExtension.ContainsKey(rowData[0]))
    {
        mimeTypeToExtension.Add(rowData[0], extensions);
    }

    foreach (var extension in extensions)
    {
        if (!extensionToMimeType.ContainsKey(extension))
        {
            extensionToMimeType.Add(extension, rowData[0]);
        }
    }

}
— user850129
kaynak
-3

FileExtensionMime değil dosya uzantısını kullanın. Kullanıcı dosya uzantısını değiştirebilir, bu nedenle Mime'i kontrol edin. Kod örnekleri Mime'ı dosya uzantısına göre ilişkilendirir, bu yanlıştır ve çalışmaz.

contenttypeDosyayı almanız ve tablonun contetTypebu dosyayı dosya uzantısına göre Mime olup olmadığını kontrol etmeniz gerekir. Şimdi,ContentType dosya nasıl alınır?

FileUpload kullanmak böylece: FileUpload.PostedFile.ContentType; Şimdi zaten zaten sahip, eğer ContentType yakalandı?

— Renato Mattos
kaynak
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