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| 1 | +import FormData |
| 2 | +import Foundation |
| 3 | +import HTTP |
| 4 | +import Routing |
| 5 | +import Storage |
| 6 | +import Vapor |
| 7 | + |
| 8 | +private extension Field { |
| 9 | + var data: Bytes { |
| 10 | + return part.body |
| 11 | + } |
| 12 | + |
| 13 | + var string: String? { |
| 14 | + let body = part.body |
| 15 | + return body.withUnsafeBufferPointer { buffer in |
| 16 | + guard let uptr = buffer.baseAddress else { return nil } |
| 17 | + return uptr.withMemoryRebound(to: CChar.self, capacity: body.count, String.init(utf8String:)) |
| 18 | + } |
| 19 | + } |
| 20 | +} |
| 21 | + |
| 22 | +final class VanityCollection: RouteCollection { |
| 23 | + typealias Wrapped = HTTP.Responder |
| 24 | + |
| 25 | + let updatePassword: String? |
| 26 | + |
| 27 | + init(updatePassword: String?) { |
| 28 | + self.updatePassword = updatePassword |
| 29 | + } |
| 30 | + |
| 31 | + func isAuthenticated(request: Request) -> Bool { |
| 32 | + guard let updatePassword = updatePassword else { |
| 33 | + // No password = always authenticated |
| 34 | + return true |
| 35 | + } |
| 36 | + |
| 37 | + if let authorization = request.headers[.authorization] { |
| 38 | + return authorization == "Bearer \(updatePassword)" |
| 39 | + } else { |
| 40 | + return false |
| 41 | + } |
| 42 | + } |
| 43 | + |
| 44 | + func findPass(vanityName: String) throws -> Pass? { |
| 45 | + return try Pass.query() |
| 46 | + .filter("vanity_name", vanityName) |
| 47 | + .first() |
| 48 | + } |
| 49 | + |
| 50 | + func parseVanityName(from fileName: String) -> String? { |
| 51 | + if let suffixRange = fileName.range(of: ".pkpass", options: [.anchored, .backwards, .caseInsensitive]) { |
| 52 | + return fileName[fileName.startIndex ..< suffixRange.lowerBound] |
| 53 | + } else { |
| 54 | + return nil |
| 55 | + } |
| 56 | + } |
| 57 | + |
| 58 | + func build<B: RouteBuilder>(_ builder: B) where B.Value == Wrapped { |
| 59 | + builder.get(String.self) { request, passName in |
| 60 | + guard let vanityName = self.parseVanityName(from: passName), |
| 61 | + let pass = try self.findPass(vanityName: vanityName), |
| 62 | + let passPath = pass.passPath |
| 63 | + else { |
| 64 | + return Response(status: .notFound) |
| 65 | + } |
| 66 | + |
| 67 | + let updatedAt = pass.updatedAt ?? Date() |
| 68 | + let headers: [HeaderKey: String] = [ |
| 69 | + .contentType: "application/vnd.apple.pkpass", |
| 70 | + .lastModified: rfc2616DateFormatter.string(from: updatedAt), |
| 71 | + ] |
| 72 | + let passBytes = try Storage.get(path: passPath) |
| 73 | + return Response(status: .ok, headers: headers, body: .data(passBytes)) |
| 74 | + } |
| 75 | + |
| 76 | + builder.post(String.self) { request, passName in |
| 77 | + guard self.isAuthenticated(request: request) else { |
| 78 | + return Response(status: .unauthorized) |
| 79 | + } |
| 80 | + |
| 81 | + guard let vanityName = self.parseVanityName(from: passName) else { |
| 82 | + return Response(status: .notFound) |
| 83 | + } |
| 84 | + |
| 85 | + guard try self.findPass(vanityName: vanityName) == nil else { |
| 86 | + return Response(status: .preconditionFailed) |
| 87 | + } |
| 88 | + |
| 89 | + guard let formData = request.formData, |
| 90 | + let authenticationToken = formData["authentication_token"]?.string, |
| 91 | + let passTypeIdentifier = formData["pass_type_identifier"]?.string, |
| 92 | + let serialNumber = formData["serial_number"]?.string, |
| 93 | + let passData = formData["pass"]?.data |
| 94 | + else { |
| 95 | + return Response(status: .badRequest) |
| 96 | + } |
| 97 | + |
| 98 | + let passPath = try Storage.upload(bytes: passData, fileName: vanityName, fileExtension: "pkpass", mime: "application/vnd.apple.pkpass") |
| 99 | + |
| 100 | + var pass = Pass() |
| 101 | + pass.vanityName = vanityName |
| 102 | + pass.authenticationToken = authenticationToken |
| 103 | + pass.serialNumber = serialNumber |
| 104 | + pass.passTypeIdentifier = passTypeIdentifier |
| 105 | + pass.passPath = passPath |
| 106 | + pass.updatedAt = Date() |
| 107 | + try pass.save() |
| 108 | + |
| 109 | + return Response(status: .created) |
| 110 | + } |
| 111 | + |
| 112 | + builder.put(String.self) { request, passName in |
| 113 | + guard self.isAuthenticated(request: request) else { |
| 114 | + return Response(status: .unauthorized) |
| 115 | + } |
| 116 | + |
| 117 | + guard let vanityName = self.parseVanityName(from: passName), |
| 118 | + var pass = try self.findPass(vanityName: vanityName) |
| 119 | + else { |
| 120 | + return Response(status: .notFound) |
| 121 | + } |
| 122 | + |
| 123 | + guard let formData = request.formData, |
| 124 | + let passData = formData["pass"]?.data |
| 125 | + else { |
| 126 | + return Response(status: .badRequest) |
| 127 | + } |
| 128 | + |
| 129 | + let passPath = try Storage.upload(bytes: passData, fileName: vanityName, fileExtension: "pkpass", mime: "application/vnd.apple.pkpass") |
| 130 | + pass.passPath = passPath |
| 131 | + pass.updatedAt = Date() |
| 132 | + try pass.save() |
| 133 | + |
| 134 | + return Response(status: .seeOther, headers: [.location: String(describing: request.uri)]) |
| 135 | + } |
| 136 | + } |
| 137 | +} |
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