134 lines
4.2 KiB
Swift
Executable File
134 lines
4.2 KiB
Swift
Executable File
import Vapor
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import Foundation
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/// The decoder to extract caps from JSON payloads given to the `cap` route.
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private let decoder = JSONDecoder()
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/// The date formatter to decode dates in requests
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private let dateFormatter: DateFormatter = {
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let df = DateFormatter()
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df.dateFormat = "yy-MM-dd-HH-mm-ss"
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return df
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}()
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private func authorize(_ request: Request) throws {
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guard let key = request.headers.first(name: "key") else {
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throw Abort(.badRequest) // 400
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}
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guard server.hasAuthorization(for: key) else {
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throw Abort(.forbidden) // 403
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}
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}
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func routes(_ app: Application) {
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app.get("version") { _ in
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"\(server.classifierVersion)"
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}
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// Add or change a cap
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app.postCatching("cap") { request in
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try authorize(request)
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let data = try request.getBodyData()
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let cap = try decoder.decode(Cap.self, from: data)
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try server.addOrUpdate(cap)
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}
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// Upload an image
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app.postCatching("images", ":n") { request in
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try authorize(request)
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guard let cap = request.parameters.get("n", as: Int.self) else {
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log("Invalid parameter for cap")
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throw Abort(.badRequest)
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}
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let data = try request.getBodyData()
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try server.save(image: data, for: cap)
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}
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// Update the classifier
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app.on(.POST, "classifier", ":version", body: .collect(maxSize: "50mb")) { request -> HTTPStatus in
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try authorize(request)
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guard let version = request.parameters.get("version", as: Int.self) else {
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log("Invalid parameter for version")
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throw Abort(.badRequest)
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}
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guard version > server.classifierVersion else {
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throw Abort(.alreadyReported) // 208
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}
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let data = try request.getBodyData()
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try server.save(classifier: data, version: version)
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return .ok
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}
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// Update the trained classes
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app.postCatching("classes", ":date") { request in
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guard let dateString = request.parameters.get("date") else {
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log("Invalid parameter for date")
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throw Abort(.badRequest)
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}
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guard let date = dateFormatter.date(from: dateString) else {
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log("Invalid date specification")
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throw Abort(.badRequest)
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}
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try authorize(request)
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let body = try request.getStringBody()
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server.updateTrainedClasses(content: body)
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server.removeAllEntriesInImageChangeList(before: date)
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}
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// Get the list of missing thumbnails
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app.get("thumbnails", "missing") { request in
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let missingThumbnails = server.getListOfMissingThumbnails()
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return missingThumbnails.map(String.init).joined(separator: ",")
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}
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// Upload the thumbnail of a cap
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app.postCatching("thumbnails", ":cap") { request in
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guard let cap = request.parameters.get("cap", as: Int.self) else {
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log("Invalid cap parameter for thumbnail upload")
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throw Abort(.badRequest)
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}
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try authorize(request)
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let data = try request.getBodyData()
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server.saveThumbnail(data, for: cap)
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}
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// Delete the image of a cap
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app.postCatching("delete", ":cap", ":version") { request in
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guard let cap = request.parameters.get("cap", as: Int.self) else {
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log("Invalid cap parameter for image deletion")
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throw Abort(.badRequest)
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}
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try authorize(request)
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guard let version = request.parameters.get("version", as: Int.self) else {
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log("Invalid version parameter for image deletion")
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throw Abort(.badRequest)
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}
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guard server.deleteImage(version: version, for: cap) else {
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throw Abort(.gone)
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}
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}
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}
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private extension Request {
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func getBodyData() throws -> Data {
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guard let buffer = body.data else {
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log("Missing body data")
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throw CapError.invalidBody
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}
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return Data(buffer: buffer)
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}
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func getStringBody() throws -> String {
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let data = try getBodyData()
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guard let content = String(data: data, encoding: .utf8) else {
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log("Invalid string body")
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throw CapError.invalidBody
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}
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return content
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}
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}
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