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Code Issues Releases Wiki Activity

Ensure media is processed properly

This commit is contained in:
Justin Mazzocchi 2021-03-04 23:29:05 -08:00
parent 7ff10d999e
commit 5fcc8c780e
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GPG Key ID: E223E6937AAFB01C
1 changed files with 42 additions and 34 deletions
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76
ServiceLayer/Sources/ServiceLayer/Services/MediaProcessingService.swift
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@ -21,51 +21,59 @@ public extension MediaProcessingService {
static func dataAndMimeType(itemProvider: NSItemProvider) -> AnyPublisher<(data: Data, mimeType: String), Error> {
let registeredTypes = itemProvider.registeredTypeIdentifiers.compactMap(UTType.init)
let uniformType: UTType
let mimeType: String
let dataPublisher: AnyPublisher<Data, Error>
if let uniformTypeWithUploadableMimeType = registeredTypes.first(where: {
if let uniformType = registeredTypes.first(where: {
guard let mimeType = $0.preferredMIMEType else { return false }
return Self.uploadableMimeTypes.contains(mimeType)
}), let preferredMIMEType = uniformTypeWithUploadableMimeType.preferredMIMEType {
uniformType = uniformTypeWithUploadableMimeType
}), let preferredMIMEType = uniformType.preferredMIMEType {
mimeType = preferredMIMEType
} else if registeredTypes == [UTType.image], let pngMIMEType = UTType.png.preferredMIMEType {
uniformType = .image
dataPublisher = Future<Data, Error> { promise in
itemProvider.loadFileRepresentation(forTypeIdentifier: uniformType.identifier) { url, error in
if let error = error {
promise(.failure(error))
} else if let url = url {
if uniformType.conforms(to: .image) && uniformType != .gif {
promise(imageData(url: url, type: uniformType))
} else {
promise(Result { try Data(contentsOf: url) })
}
} else {
promise(.failure(MediaProcessingError.fileURLNotFound))
}
}
}
.eraseToAnyPublisher()
} else if registeredTypes == [UTType.image], let pngMIMEType = UTType.png.preferredMIMEType { // screenshot
mimeType = pngMIMEType
dataPublisher = Future<Data, Error> { promise in
itemProvider.loadItem(forTypeIdentifier: UTType.image.identifier, options: nil) { item, error in
if let error = error {
promise(.failure(error))
} else if let image = item as? UIImage, let data = image.pngData() {
do {
let url = URL(fileURLWithPath: NSTemporaryDirectory(), isDirectory: true)
.appendingPathComponent(UUID().uuidString)
try data.write(to: url)
promise(imageData(url: url, type: .png))
} catch {
promise(.failure(error))
}
} else {
promise(.failure(MediaProcessingError.fileURLNotFound))
}
}
}
.eraseToAnyPublisher()
} else {
return Fail(error: MediaProcessingError.invalidMimeType).eraseToAnyPublisher()
}
return Future<Data, Error> { promise in
itemProvider.loadItem(forTypeIdentifier: uniformType.identifier, options: nil) { item, error in
if let error = error {
promise(.failure(error))
} else if let url = item as? URL {
if uniformType.conforms(to: .image) && uniformType != .gif {
promise(imageData(url: url, type: uniformType))
} else {
promise(Result { try Data(contentsOf: url) })
}
} else if let image = item as? UIImage, let data = image.pngData() { // screenshots
do {
let url = URL(fileURLWithPath: NSTemporaryDirectory(), isDirectory: true)
.appendingPathComponent(UUID().uuidString)
try data.write(to: url)
promise(imageData(url: url, type: .png))
} catch {
promise(.failure(error))
}
} else {
promise(.failure(MediaProcessingError.fileURLNotFound))
}
}
}
.map { (data: $0, mimeType: mimeType) }
.eraseToAnyPublisher()
return dataPublisher.map { (data: $0, mimeType: mimeType) }.eraseToAnyPublisher()
}
}