fix (#990)

Shared/Extensions/JellyfinAPI/JellyfinClient.swift

@@ -12,8 +12,10 @@ import JellyfinAPI
 
 extension JellyfinClient {
 
-    func fullURL<T>(with request: Request<T>) -> URL {
+    func fullURL<T>(with request: Request<T>) -> URL? {
-        let fullPath = configuration.url.appendingPathComponent(request.url?.path ?? "")
+
+        guard let path = request.url?.path else { return configuration.url }
+        guard let fullPath = fullURL(with: path) else { return nil }
 
         var components = URLComponents(string: fullPath.absoluteString)!
         components.queryItems = request.query?.map { URLQueryItem(name: $0.0, value: $0.1) } ?? []
@@ -21,7 +23,11 @@ extension JellyfinClient {
         return components.url ?? fullPath
     }
 
-    func fullURL(with path: String) -> URL {
+    /// Appends the path to the current configuration `URL`, assuming that the path begins with a leading `/`.
-        URL(string: configuration.url.absoluteString + path)!
+    /// Returns `nil` if the new `URL` is malformed.
+    func fullURL(with path: String) -> URL? {
+        guard let fullPath = URL(string: configuration.url.absoluteString.trimmingCharacters(in: ["/"]) + path)
+        else { return nil }
+        return fullPath
     }
 }

Shared/Extensions/JellyfinAPI/MediaSourceInfo/MediaSourceInfo+ItemVideoPlayerViewModel.swift

@@ -12,6 +12,8 @@ import Foundation
 import JellyfinAPI
 import UIKit
 
+// TODO: strongly type errors
+
 extension MediaSourceInfo {
 
     func videoPlayerViewModel(with item: BaseItemDto, playSessionID: String) throws -> VideoPlayerViewModel {
@@ -21,8 +23,8 @@ extension MediaSourceInfo {
         let streamType: StreamType
 
         if let transcodingURL, !Defaults[.Experimental.forceDirectPlay] {
-            guard let fullTranscodeURL = URL(string: transcodingURL, relativeTo: userSession.server.currentURL)
+            guard let fullTranscodeURL = userSession.client.fullURL(with: transcodingURL)
-            else { throw JellyfinAPIError("Unable to construct transcoded url") }
+            else { throw JellyfinAPIError("Unable to make transcode URL") }
             playbackURL = fullTranscodeURL
             streamType = .transcode
         } else {
@@ -39,7 +41,10 @@ extension MediaSourceInfo {
                 parameters: videoStreamParameters
             )
 
-            playbackURL = userSession.client.fullURL(with: videoStreamRequest)
+            guard let streamURL = userSession.client.fullURL(with: videoStreamRequest)
+            else { throw JellyfinAPIError("Unable to make stream URL") }
+
+            playbackURL = streamURL
             streamType = .direct
         }
 

Shared/Extensions/JellyfinAPI/MediaStream.swift

@@ -20,7 +20,7 @@ extension MediaStream {
         let client = Container.userSession().client
         let deliveryPath = deliveryURL.removingFirst(if: client.configuration.url.absoluteString.last == "/")
 
-        let fullURL = client.fullURL(with: deliveryPath)
+        guard let fullURL = client.fullURL(with: deliveryPath) else { return nil }
 
         return .init(
             url: fullURL,

Shared/ViewModels/VideoPlayerViewModel.swift

@@ -57,7 +57,8 @@ class VideoPlayerViewModel: ViewModel {
             parameters: parameters
         )
 
-        let hlsStreamComponents = URLComponents(url: userSession.client.fullURL(with: request), resolvingAgainstBaseURL: false)!
+        // TODO: don't force unwrap
+        let hlsStreamComponents = URLComponents(url: userSession.client.fullURL(with: request)!, resolvingAgainstBaseURL: false)!
             .addingQueryItem(key: "api_key", value: userSession.user.accessToken)
 
         return hlsStreamComponents.url!

Swiftfin.xcodeproj/project.pbxproj

@@ -2535,8 +2535,7 @@
 				E148128728C154BF003B8787 /* ItemFilter+ItemTrait.swift */,
 				E11B1B6B2718CD68006DA3E8 /* JellyfinAPIError.swift */,
 				E12A9EF729499E0100731C3A /* JellyfinClient.swift */,
-				E1D8428E2933F2D900D1041A /* MediaSourceInfo.swift */,
+				E1F5F9B12BA0200500BA5014 /* MediaSourceInfo */,
-				E18A8E7F28D6083700333B9A /* MediaSourceInfo+ItemVideoPlayerViewModel.swift */,
 				E122A9122788EAAD0060FA63 /* MediaStream.swift */,
 				E1AD105E26D9ADDD003E4A08 /* NameGuidPair.swift */,
 				E148128428C15472003B8787 /* SortOrder.swift */,
@@ -2821,6 +2820,15 @@
 			path = PagingLibraryView;
 			sourceTree = "<group>";
 		};
+		E1F5F9B12BA0200500BA5014 /* MediaSourceInfo */ = {
+			isa = PBXGroup;
+			children = (
+				E1D8428E2933F2D900D1041A /* MediaSourceInfo.swift */,
+				E18A8E7F28D6083700333B9A /* MediaSourceInfo+ItemVideoPlayerViewModel.swift */,
+			);
+			path = MediaSourceInfo;
+			sourceTree = "<group>";
+		};
 		E1FA891C289A302600176FEB /* CollectionItemView */ = {
 			isa = PBXGroup;
 			children = (