Add Facebook Share and adopt master-only releases

.github/workflows/ci.yml

@@ -67,10 +67,10 @@ jobs:
           required = [
             "buildTransitive/Kapusch.Facebook.iOS.targets",
             "kfb.xcframework/Info.plist",
+            "kfbshare.xcframework/Info.plist",
             "fb/FBAEMKit.xcframework/Info.plist",
             "fb/FBSDKCoreKit.xcframework/Info.plist",
             "fb/FBSDKCoreKit_Basics.xcframework/Info.plist",
-            "fb/FBSDKGamingServicesKit.xcframework/Info.plist",
             "fb/FBSDKLoginKit.xcframework/Info.plist",
             "fb/FBSDKShareKit.xcframework/Info.plist",
           ]
@@ -87,6 +87,10 @@ jobs:
             print("ERROR: wrapper appears flattened (found 'Info.plist' at package root).")
             sys.exit(1)
 
+          if any(name.startswith("fb/FBSDKGamingServicesKit.xcframework/") for name in names):
+            print("ERROR: GamingServicesKit must not be packaged.")
+            sys.exit(1)
+
           print("OK: nupkg layout looks correct.")
           PY
 

.github/workflows/publish.yml

@@ -32,7 +32,6 @@ jobs:
         shell: bash
         run: |
           REF="${{ github.ref }}"
-          EVENT="${{ github.event_name }}"
           MANUAL_VERSION="${{ github.event.inputs.manual_version }}"
           CSPROJ="src/Kapusch.FacebookApisForiOSComponents/Kapusch.FacebookApisForiOSComponents.csproj"
           BASE_VERSION=$(grep -oE '<Version>[^<]+' "$CSPROJ" | head -n 1 | sed 's/<Version>//' || echo "0.1.0")
@@ -52,27 +51,14 @@ jobs:
           fi
 
           if [[ "$PUBLISH_TARGET" == "nuget" ]]; then
-            git fetch origin +refs/heads/*:refs/remotes/origin/*
-            TAGGED_SHA="${{ github.sha }}"
-            CONTAINING_BRANCHES=$(git for-each-ref --format='%(refname:short)' refs/remotes/origin --contains "$TAGGED_SHA")
-
-            ON_MASTER="false"
-            ON_RELEASE="false"
-            while IFS= read -r branch; do
-              [[ "$branch" == "origin/master" ]] && ON_MASTER="true"
-              [[ "$branch" == origin/release/* ]] && ON_RELEASE="true"
-            done <<< "$CONTAINING_BRANCHES"
-
-            if [[ "$VERSION" == *-* ]]; then
-              if [[ "$ON_RELEASE" != "true" ]]; then
-                echo "ERROR: Pre-release version $VERSION must be on origin/release/*"
-                exit 1
-              fi
-            else
-              if [[ "$ON_MASTER" != "true" ]]; then
-                echo "ERROR: Stable version $VERSION must be on origin/master"
-                exit 1
-              fi
+            git fetch origin master
+            if ! git merge-base --is-ancestor "${{ github.sha }}" origin/master; then
+              echo "ERROR: NuGet.org releases must be reachable from origin/master."
+              exit 1
+            fi
+            if [[ -n "$MANUAL_VERSION" && "$REF" != "refs/heads/master" ]]; then
+              echo "ERROR: Manual NuGet.org releases must be dispatched from master."
+              exit 1
             fi
           fi
 
@@ -136,10 +122,10 @@ jobs:
           required = [
             "buildTransitive/Kapusch.Facebook.iOS.targets",
             "kfb.xcframework/Info.plist",
+            "kfbshare.xcframework/Info.plist",
             "fb/FBAEMKit.xcframework/Info.plist",
             "fb/FBSDKCoreKit.xcframework/Info.plist",
             "fb/FBSDKCoreKit_Basics.xcframework/Info.plist",
-            "fb/FBSDKGamingServicesKit.xcframework/Info.plist",
             "fb/FBSDKLoginKit.xcframework/Info.plist",
             "fb/FBSDKShareKit.xcframework/Info.plist",
           ]
@@ -155,6 +141,10 @@ jobs:
             print("ERROR: wrapper appears flattened (found 'Info.plist' at package root).")
             sys.exit(1)
 
+          if any(name.startswith("fb/FBSDKGamingServicesKit.xcframework/") for name in names):
+            print("ERROR: GamingServicesKit must not be packaged.")
+            sys.exit(1)
+
           print("OK: nupkg layout looks correct.")
           PY
 

AGENTS.md

@@ -1,7 +1,7 @@
 # Kapusch.FacebookApisForiOSComponents — AI Working Agreement
 
 ## Goals
-- Produce a reproducible iOS NuGet package for Facebook Login interop.
+- Produce a reproducible iOS NuGet package for selectable Facebook Login and Share interop.
 - Do not commit secrets.
 
 ## Packaging constraints
@@ -19,3 +19,9 @@
 ## Safety
 - Do not add new dependency ingestion paths without documenting them in `README.md`.
 - Do not commit real app ids/secrets.
+
+## Branches and releases
+- `master` is the only long-lived branch and the source of every NuGet.org release.
+- Implement changes on short-lived branches and target `master` through a PR. Never implement directly on `release/*`.
+- Both stable (`vX.Y.Z`) and prerelease (`vX.Y.Z-rc.N`) tags must reference commits reachable from `origin/master`.
+- Manual runs without a version publish previews to GitHub Packages. See `Docs/Release.md` for the complete contract.

CONTRIBUTING.md

@@ -32,9 +32,12 @@ Pack the NuGet:
 ## Pull requests
 
 - Keep PRs focused and well-scoped.
+- Branch from `master` and target `master`; this repository does not use long-lived `release/*` branches.
 - Do not commit secrets.
 - If you update the Facebook SDK version, update `Package.swift` and `Package.resolved` together.
 
+See `Docs/Release.md` before changing versions, tags, or publishing workflows.
+
 ## License
 
 By contributing, you agree that your contributions will be licensed under the repository license (MIT).

Docs/Integration.md

@@ -28,7 +28,22 @@ Call the interop hooks in your `AppDelegate`:
 - On launch: `NativeFacebookLogin.Initialize(app, options)`
 - On URL open: `NativeFacebookLogin.HandleOpenUrl(app, url, options)`
 
-## 3) Limited Login
+These hooks apply to `KapuschFacebookFeatures=Login`. For Share-only builds,
+disable Meta automatic initialization and call
+`NativeFacebookShare.ConfigureAndInitialize(app.Handle, trackingAllowed)` only
+after the ATT decision, immediately before the first share. Then call
+`NativeFacebookShare.SharePhotoAsync(...)`; no caption is accepted.
+
+## 3) Feature selection
+
+- `Login` (default): Login wrapper and LoginKit.
+- `Share`: photo-share wrapper and ShareKit.
+- `Login;Share`: both managed/native entry points.
+
+At SDK 18.0.2, ShareKit's CoreKit dependency requires FBAEMKit. Treat this as a
+privacy-review blocker if the consumer's artifact policy excludes FBAEMKit.
+
+## 4) Limited Login
 
 For Limited Login, pass:
 - `FacebookTrackingMode.Limited`
@@ -38,7 +53,7 @@ The result can contain:
 - `AuthenticationToken`
 - `Nonce`
 
-## 4) Secrets policy
+## 5) Secrets policy
 
 Do not commit real values in this repo.
 Use templates and `.gitignore`d local files for any sample app configuration.

Docs/Release.md

@@ -0,0 +1,23 @@
+# Release workflow
+
+`master` is the only long-lived branch. Feature work uses short-lived branches and pull requests targeting `master`; this repository does not create `release/*` branches.
+
+## Channels
+
+- Manual workflow run without `manual_version`: build a preview package and publish it to GitHub Packages.
+- `vX.Y.Z-rc.N` tag reachable from `origin/master`: publish that prerelease to NuGet.org.
+- `vX.Y.Z` tag reachable from `origin/master`: publish that stable version to NuGet.org.
+- Manual workflow run with `manual_version`: publish to NuGet.org only when the workflow runs from `master`.
+
+NuGet versions and Git tags are immutable. Query the official NuGet index before publishing and never move or recreate an existing tag.
+
+## Release sequence
+
+1. Fetch `origin`, start a short-lived branch from `origin/master`, and verify the worktree is clean.
+2. Build the Swift wrappers, collect the locked Facebook xcframeworks, pack the NuGet and validate its module selection.
+3. Open a PR to `master` and require CI to pass.
+4. Merge and fetch the resulting `origin/master` commit.
+5. Create the RC or stable tag on that exact commit and push only the new tag.
+6. Verify the publish workflow and the resulting NuGet package before updating consumers.
+
+Do not delete historical tags. Delete a temporary branch only after every retained commit is reachable from `origin/master`.

README.md

@@ -1,6 +1,6 @@
 # FacebookApisForiOSComponents
 
-Public OSS repository that packages **Facebook Login for iOS** into a consumable .NET NuGet.
+Public OSS repository that packages selected Facebook iOS features into a consumable .NET NuGet.
 
 ## Package
 
@@ -9,10 +9,18 @@ Public OSS repository that packages **Facebook Login for iOS** into a consumable
 ## What this repo ships
 
 A NuGet package that:
-- provides a small managed API for **Facebook Login (iOS)**, and
+- provides managed APIs for **Facebook Login** and **Facebook photo sharing**, and
 - redistributes the required **Facebook iOS SDK xcframeworks** inside the `.nupkg` (classic/native binding packaging),
 - injects the xcframeworks into consuming apps via `buildTransitive` `NativeReference` items.
 
+Select features with `KapuschFacebookFeatures=Login`, `Share`, or `Login;Share`.
+The default remains `Login` for compatibility.
+
+Facebook iOS SDK 18.0.2 links `FBSDKCoreKit` to `FBAEMKit` non-weakly. Therefore
+`Share` currently includes `ShareKit`, `CoreKit`, `CoreKit_Basics` and `FBAEMKit`.
+A consumer that forbids `FBAEMKit` must block Store delivery; this repository
+does not strip or conceal the dependency.
+
 ## Third-party licenses
 
 See `THIRD_PARTY_NOTICES.md`.
@@ -21,6 +29,7 @@ See `THIRD_PARTY_NOTICES.md`.
 
 - Formatting: `Docs/Formatting.md`
 - Source mode: `Docs/SourceMode.md`
+- Release workflow: `Docs/Release.md`
 - Samples: `samples/README.md`
 
 ## Build (local)
@@ -49,22 +58,13 @@ Pack the NuGet:
 - PR CI is build-only.
 - Publishing is handled by `.github/workflows/publish.yml` with channel routing:
 	- tag `vX.Y.Z` on `master` -> NuGet.org (stable)
-	- tag `vX.Y.Z-rc.N` on `release/*` -> NuGet.org (pre-release)
+	- tag `vX.Y.Z-rc.N` on `master` -> NuGet.org (pre-release)
 	- non-tag runs (`workflow_dispatch`) -> GitHub Packages (`X.Y.Z-preview.<run>.<sha>`)
-	- `workflow_dispatch` with `manual_version` -> NuGet.org (forced version)
+	- `workflow_dispatch` on `master` with `manual_version` -> NuGet.org (forced version)
 - NuGet.org publishing uses NuGet Trusted Publishing (OIDC via `NuGet/login@v1`), no long-lived NuGet API key.
 
 ### Required GitHub secret
 
 - `NUGET_USER`: your nuget.org profile username (not email), used by `NuGet/login@v1`.
 
-## Release examples
-
-- Pre-release candidate from a release branch:
-	- `git checkout release/1.0.0`
-	- `git tag v1.0.0-rc.1`
-	- `git push origin v1.0.0-rc.1`
-- Stable release from master:
-	- `git checkout master`
-	- `git tag v1.0.0`
-	- `git push origin v1.0.0`
+See `Docs/Release.md` for the validated release sequence. Historical tags remain immutable even when obsolete branches are deleted.

global.json

@@ -1,6 +1,6 @@
 {
   "sdk": {
     "version": "10.0.100",
-    "rollForward": "patch"
+    "rollForward": "latestFeature"
   }
 }

src/Kapusch.FacebookApisForiOSComponents/Facebook/NativeFacebookLogin.iOS.cs

@@ -5,16 +5,14 @@ namespace Kapusch.Facebook.iOS;
 
 public static unsafe class NativeFacebookLogin
 {
-	private const string LibraryName = "__Internal";
-
 	public static void Initialize(IntPtr uiApplicationHandle, IntPtr launchOptionsHandle)
 	{
 		if (uiApplicationHandle == IntPtr.Zero)
 			return;
 
 		try
 		{
-			KfiFacebookInitialize(
+			ResolveInitialize()(
 				uiApplicationHandle,
 				launchOptionsHandle
 			);
@@ -36,11 +34,11 @@ IntPtr optionsHandle
 
 		try
 		{
-			return KfiFacebookHandleOpenUrl(
+			return ResolveHandleOpenUrl()(
 				uiApplicationHandle,
 				nsUrlHandle,
 				optionsHandle
-			);
+			) != 0;
 		}
 		catch
 		{
@@ -68,13 +66,29 @@ public static Task<NativeFacebookSignInResult> SignInAsync(
 		var gch = GCHandle.Alloc(tcs);
 		var context = GCHandle.ToIntPtr(gch);
 
-		KfiFacebookSignInStart(
-			presentingViewControllerHandle,
-			(int)trackingMode,
-			rawNonce,
-			&KfiFacebookCallback,
-			context
-		);
+		var noncePointer = string.IsNullOrEmpty(rawNonce)
+			? IntPtr.Zero
+			: Marshal.StringToCoTaskMemUTF8(rawNonce);
+		try
+		{
+			ResolveSignInStart()(
+				presentingViewControllerHandle,
+				(int)trackingMode,
+				noncePointer,
+				&KfiFacebookCallback,
+				context
+			);
+		}
+		catch
+		{
+			gch.Free();
+			throw;
+		}
+		finally
+		{
+			if (noncePointer != IntPtr.Zero)
+				Marshal.FreeCoTaskMem(noncePointer);
+		}
 
 		_ = cancellationToken.Register(() =>
 			tcs.TrySetResult(new NativeFacebookSignInResult(NativeSignInStatus.Cancelled))
@@ -87,7 +101,7 @@ public static void SignOut()
 	{
 		try
 		{
-			KfiFacebookSignOut();
+			ResolveSignOut()();
 		}
 		catch
 		{
@@ -130,35 +144,32 @@ IntPtr context
 		}
 	}
 
-	[DllImport(LibraryName, EntryPoint = "kfb_facebook_initialize")]
-	private static extern void KfiFacebookInitialize(IntPtr uiApplication, IntPtr launchOptions);
-
-	[DllImport(LibraryName, EntryPoint = "kfb_facebook_handle_open_url")]
-	[return: MarshalAs(UnmanagedType.I1)]
-	private static extern bool KfiFacebookHandleOpenUrl(
-		IntPtr uiApplication,
-		IntPtr nsUrl,
-		IntPtr options
-	);
-
-	[DllImport(LibraryName, EntryPoint = "kfb_facebook_signin_start")]
-	private static extern void KfiFacebookSignInStart(
-		IntPtr presentingViewController,
-		int trackingMode,
-		[MarshalAs(UnmanagedType.LPUTF8Str)] string? rawNonce,
-		delegate* unmanaged[Cdecl]<
-			int,
-			IntPtr,
-			IntPtr,
-			IntPtr,
-			IntPtr,
+	private static IntPtr Resolve(string symbol) =>
+		NativeLibrary.GetExport(NativeLibrary.GetMainProgramHandle(), symbol);
+
+	private static delegate* unmanaged[Cdecl]<IntPtr, IntPtr, void> ResolveInitialize() =>
+		(delegate* unmanaged[Cdecl]<IntPtr, IntPtr, void>)Resolve("kfb_facebook_initialize");
+
+	private static delegate* unmanaged[Cdecl]<IntPtr, IntPtr, IntPtr, byte> ResolveHandleOpenUrl() =>
+		(delegate* unmanaged[Cdecl]<IntPtr, IntPtr, IntPtr, byte>)Resolve(
+			"kfb_facebook_handle_open_url"
+		);
+
+	private static delegate* unmanaged[Cdecl]<
+		IntPtr,
+		int,
+		IntPtr,
+		delegate* unmanaged[Cdecl]<int, IntPtr, IntPtr, IntPtr, IntPtr, IntPtr, IntPtr, IntPtr, void>,
+		IntPtr,
+		void> ResolveSignInStart() =>
+		(delegate* unmanaged[Cdecl]<
 			IntPtr,
+			int,
 			IntPtr,
+			delegate* unmanaged[Cdecl]<int, IntPtr, IntPtr, IntPtr, IntPtr, IntPtr, IntPtr, IntPtr, void>,
 			IntPtr,
-			void> callback,
-		IntPtr context
-	);
+			void>)Resolve("kfb_facebook_signin_start");
 
-	[DllImport(LibraryName, EntryPoint = "kfb_facebook_signout")]
-	private static extern void KfiFacebookSignOut();
+	private static delegate* unmanaged[Cdecl]<void> ResolveSignOut() =>
+		(delegate* unmanaged[Cdecl]<void>)Resolve("kfb_facebook_signout");
 }