REST: add HTTP proxy configuration

1 files changed, 25 insertions, 2 deletions

diff --git a/ios/MullvadREST/RESTURLSession.swift b/ios/MullvadREST/RESTURLSession.swift
index f1d3dfe501..87e2d7abbe 100644
--- a/ios/MullvadREST/RESTURLSession.swift
+++ b/ios/MullvadREST/RESTURLSession.swift
@@ -9,7 +9,27 @@
 import Foundation
 
 extension REST {
-    public static func makeURLSession() -> URLSession {
+    public struct HTTPProxyConfiguration {
+        public var address: String
+        public var port: UInt16
+
+        public init(address: String, port: UInt16) {
+            self.address = address
+            self.port = port
+        }
+
+        fileprivate func apply(to sessionConfiguration: URLSessionConfiguration) {
+            var configuration = [CFString: Any]()
+
+            configuration[kCFNetworkProxiesHTTPProxy] = address
+            configuration[kCFNetworkProxiesHTTPPort] = NSNumber(value: port)
+            configuration[kCFNetworkProxiesProxyAutoConfigEnable] = kCFBooleanFalse
+
+            sessionConfiguration.connectionProxyDictionary = configuration
+        }
+    }
+
+    public static func makeURLSession(httpProxyConfiguration: HTTPProxyConfiguration? = nil) -> URLSession {
         let certificatePath = Bundle(for: SSLPinningURLSessionDelegate.self)
             .path(forResource: "le_root_cert", ofType: "cer")!
         let data = FileManager.default.contents(atPath: certificatePath)!
@@ -20,8 +40,11 @@ extension REST {
             trustedRootCertificates: [secCertificate]
         )
 
+        let sessionConfiguration = URLSessionConfiguration.ephemeral
+        httpProxyConfiguration?.apply(to: sessionConfiguration)
+
         let session = URLSession(
-            configuration: .ephemeral,
+            configuration: sessionConfiguration,
             delegate: sessionDelegate,
             delegateQueue: nil
         )