Blame view
App/utils/FileUpload.swift
3.75 KB
defd9642e
version 1.2
|
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 |
import Foundation
import Alamofire
private struct FileUploadInfo {
var name: String
var mimeType: String
var fileName: String
var url: URL?
var data: Data?
init(name: String, withFileURL url: URL, withMimeType mimeType: String? = nil) {
self.name = name
self.url = url
self.fileName = name
self.mimeType = "application/octet-stream"
if mimeType != nil {
self.mimeType = mimeType!
}
fileName = url.lastPathComponent
if mimeType == nil {
let _extension = url.pathExtension
switch _extension.lowercased() {
case "jpeg", "jpg":
self.mimeType = "image/jpeg"
case "png":
self.mimeType = "image/png"
default:
self.mimeType = "application/octet-stream"
}
}
}
init(name: String, withData data: Data, withMimeType mimeType: String) {
self.name = name
self.data = data
self.fileName = name
self.mimeType = mimeType
}
}
class FileUploader {
private var parameters = [String: String]()
private var files = [FileUploadInfo]()
private var headers = [String: String]()
func setValue(value: String, forParameter parameter: String) {
parameters[parameter] = value
}
func setValue(value: String, forHeader header: String) {
headers[header] = value
}
func addParametersFrom(_ map: [String: String]) {
for (key, value) in map {
parameters[key] = value
}
}
func addHeadersFrom(_ map: [String: String]) {
for (key, value) in map {
headers[key] = value
}
}
func addFileURL(url: URL, withName name: String, withMimeType mimeType: String? = nil) {
files.append(FileUploadInfo(name: name, withFileURL: url, withMimeType: mimeType))
}
func addFileData(data: Data, withName name: String, withMimeType mimeType: String = "application/octet-stream") {
files.append(FileUploadInfo(name: name, withData: data, withMimeType: mimeType))
}
func uploadFile(to: String, method: HTTPMethod) -> UploadRequest? {
let data = NSMutableData()
let boundary = "FileUploader-boundary-\(arc4random())-\(arc4random())"
// Amazon S3 (probably others) wont take parameters after files, so we put them first
for (key, value) in parameters {
data.append("\r
--\(boundary)\r
".data(using: String.Encoding.utf8)!)
data.append("Content-Disposition: form-data; name=\"\(key)\"\r
\r
\(value)".data(using: String.Encoding.utf8)!)
}
for fileUploadInfo in files {
data.append("\r
--\(boundary)\r
".data(using: String.Encoding.utf8)!)
data.append("Content-Disposition: form-data; name=\"\(fileUploadInfo.name)\"; filename=\"\(fileUploadInfo.fileName)\"\r
".data(using: String.Encoding.utf8)!)
data.append("Content-Type: \(fileUploadInfo.mimeType)\r
\r
".data(using: String.Encoding.utf8)!)
if fileUploadInfo.data != nil {
data.append(fileUploadInfo.data!)
} else if fileUploadInfo.url != nil, let fileData = try? Data(contentsOf: fileUploadInfo.url!) {
data.append(fileData)
} else {
// ToDo: report error
return nil
}
}
data.append("\r
--\(boundary)--\r
".data(using: String.Encoding.utf8)!)
var headerParam = HTTPHeaders()
headerParam["multipart/form-data;boundary=\(boundary)"] = "Content-Type"
for (name, value) in headers {
headerParam[value] = name
}
return Alamofire.upload(Data(referencing: data), to: to, method: method, headers: headerParam)
}
}
|