Path extension and MIME type of file in swift
If anyone wants to get the MimeType from the actual URL of the file this code worked for me:
import MobileCoreServicesfunc mimeTypeForPath(path: String) -> String { let url = NSURL(fileURLWithPath: path) let pathExtension = url.pathExtension if let uti = UTTypeCreatePreferredIdentifierForTag(kUTTagClassFilenameExtension, pathExtension! as NSString, nil)?.takeRetainedValue() { if let mimetype = UTTypeCopyPreferredTagWithClass(uti, kUTTagClassMIMEType)?.takeRetainedValue() { return mimetype as String } } return "application/octet-stream"}
If you need to check URL contains some Image or Audio file or Video file, here is Swift 5.1 code:
import Foundationimport MobileCoreServicesextension URL { func mimeType() -> String { let pathExtension = self.pathExtension if let uti = UTTypeCreatePreferredIdentifierForTag(kUTTagClassFilenameExtension, pathExtension as NSString, nil)?.takeRetainedValue() { if let mimetype = UTTypeCopyPreferredTagWithClass(uti, kUTTagClassMIMEType)?.takeRetainedValue() { return mimetype as String } } return "application/octet-stream" } var containsImage: Bool { let mimeType = self.mimeType() guard let uti = UTTypeCreatePreferredIdentifierForTag(kUTTagClassMIMEType, mimeType as CFString, nil)?.takeRetainedValue() else { return false } return UTTypeConformsTo(uti, kUTTypeImage) } var containsAudio: Bool { let mimeType = self.mimeType() guard let uti = UTTypeCreatePreferredIdentifierForTag(kUTTagClassMIMEType, mimeType as CFString, nil)?.takeRetainedValue() else { return false } return UTTypeConformsTo(uti, kUTTypeAudio) } var containsVideo: Bool { let mimeType = self.mimeType() guard let uti = UTTypeCreatePreferredIdentifierForTag(kUTTagClassMIMEType, mimeType as CFString, nil)?.takeRetainedValue() else { return false } return UTTypeConformsTo(uti, kUTTypeMovie) }}
Use the following code
MimeType.swift
import Foundationinternal let DEFAULT_MIME_TYPE = "application/octet-stream"internal let mimeTypes = [ "html": "text/html", "htm": "text/html", "shtml": "text/html", "css": "text/css", "xml": "text/xml", "gif": "image/gif", "jpeg": "image/jpeg", "jpg": "image/jpeg", "js": "application/javascript", "atom": "application/atom+xml", "rss": "application/rss+xml", "mml": "text/mathml", "txt": "text/plain", "jad": "text/vnd.sun.j2me.app-descriptor", "wml": "text/vnd.wap.wml", "htc": "text/x-component", "png": "image/png", "tif": "image/tiff", "tiff": "image/tiff", "wbmp": "image/vnd.wap.wbmp", "ico": "image/x-icon", "jng": "image/x-jng", "bmp": "image/x-ms-bmp", "svg": "image/svg+xml", "svgz": "image/svg+xml", "webp": "image/webp", "woff": "application/font-woff", "jar": "application/java-archive", "war": "application/java-archive", "ear": "application/java-archive", "json": "application/json", "hqx": "application/mac-binhex40", "doc": "application/msword", "pdf": "application/pdf", "ps": "application/postscript", "eps": "application/postscript", "ai": "application/postscript", "rtf": "application/rtf", "m3u8": "application/vnd.apple.mpegurl", "xls": "application/vnd.ms-excel", "eot": "application/vnd.ms-fontobject", "ppt": "application/vnd.ms-powerpoint", "wmlc": "application/vnd.wap.wmlc", "kml": "application/vnd.google-earth.kml+xml", "kmz": "application/vnd.google-earth.kmz", "7z": "application/x-7z-compressed", "cco": "application/x-cocoa", "jardiff": "application/x-java-archive-diff", "jnlp": "application/x-java-jnlp-file", "run": "application/x-makeself", "pl": "application/x-perl", "pm": "application/x-perl", "prc": "application/x-pilot", "pdb": "application/x-pilot", "rar": "application/x-rar-compressed", "rpm": "application/x-redhat-package-manager", "sea": "application/x-sea", "swf": "application/x-shockwave-flash", "sit": "application/x-stuffit", "tcl": "application/x-tcl", "tk": "application/x-tcl", "der": "application/x-x509-ca-cert", "pem": "application/x-x509-ca-cert", "crt": "application/x-x509-ca-cert", "xpi": "application/x-xpinstall", "xhtml": "application/xhtml+xml", "xspf": "application/xspf+xml", "zip": "application/zip", "epub": "application/epub+zip", "docx": "application/vnd.openxmlformats-officedocument.wordprocessingml.document", "xlsx": "application/vnd.openxmlformats-officedocument.spreadsheetml.sheet", "pptx": "application/vnd.openxmlformats-officedocument.presentationml.presentation", "mid": "audio/midi", "midi": "audio/midi", "kar": "audio/midi", "mp3": "audio/mpeg", "ogg": "audio/ogg", "m4a": "audio/x-m4a", "ra": "audio/x-realaudio", "3gpp": "video/3gpp", "3gp": "video/3gpp", "ts": "video/mp2t", "mp4": "video/mp4", "mpeg": "video/mpeg", "mpg": "video/mpeg", "mov": "video/quicktime", "webm": "video/webm", "flv": "video/x-flv", "m4v": "video/x-m4v", "mng": "video/x-mng", "asx": "video/x-ms-asf", "asf": "video/x-ms-asf", "wmv": "video/x-ms-wmv", "avi": "video/x-msvideo"]internal func MimeType(ext: String?) -> String { return mimeTypes[ext?.lowercased() ?? "" ] ?? DEFAULT_MIME_TYPE}extension NSURL { public func mimeType() -> String { return MimeType(ext: self.pathExtension) }}extension URL { public func mimeType() -> String { return MimeType(ext: self.pathExtension) }}extension NSString { public func mimeType() -> String { return MimeType(ext: self.pathExtension) }}extension String { public func mimeType() -> String { return (self as NSString).mimeType() }}How to use
let string = "https://homepages.cae.wisc.edu/~ece533/images/boat.png"let mimeType = string.mimeType()Workes with NSURL, URL, NSString, String