[feature/frontend] Add options to include Unlisted posts or hide all posts (#3272)

* [feature/frontend] Add options to include Unlisted posts or hide all posts

* finish up

* swagger

* move invalidate call into bundb package, avoid invalidating if not necessary

* rename show_web_statuses => web_visibility

* don't use ptr for webvisibility

* last bits

internal/filter/visibility/account.go

@@ -32,7 +32,7 @@ func (f *Filter) AccountVisible(ctx context.Context, requester *gtsmodel.Account
 	const vtype = cache.VisibilityTypeAccount
 
 	// By default we assume no auth.
-	requesterID := noauth
+	requesterID := NoAuth
 
 	if requester != nil {
 		// Use provided account ID.

internal/filter/visibility/filter.go

@@ -21,9 +21,9 @@ import (
 	"github.com/superseriousbusiness/gotosocial/internal/state"
 )
 
-// noauth is a placeholder ID used in cache lookups
+// NoAuth is a placeholder ID used in cache lookups
 // when there is no authorized account ID to use.
-const noauth = "noauth"
+const NoAuth = "noauth"
 
 // Filter packages up a bunch of logic for checking whether
 // given statuses or accounts are visible to a requester.

internal/filter/visibility/home_timeline.go

@@ -35,7 +35,7 @@ func (f *Filter) StatusHomeTimelineable(ctx context.Context, owner *gtsmodel.Acc
 	const vtype = cache.VisibilityTypeHome
 
 	// By default we assume no auth.
-	requesterID := noauth
+	requesterID := NoAuth
 
 	if owner != nil {
 		// Use provided account ID.

internal/filter/visibility/public_timeline.go

@@ -33,7 +33,7 @@ func (f *Filter) StatusPublicTimelineable(ctx context.Context, requester *gtsmod
 	const vtype = cache.VisibilityTypePublic
 
 	// By default we assume no auth.
-	requesterID := noauth
+	requesterID := NoAuth
 
 	if requester != nil {
 		// Use provided account ID.

internal/filter/visibility/status.go

@@ -54,7 +54,7 @@ func (f *Filter) StatusVisible(
 	const vtype = cache.VisibilityTypeStatus
 
 	// By default we assume no auth.
-	requesterID := noauth
+	requesterID := NoAuth
 
 	if requester != nil {
 		// Use provided account ID.
@@ -113,9 +113,9 @@ func (f *Filter) isStatusVisible(
 	}
 
 	if requester == nil {
-		// The request is unauthed. Only federated, Public statuses are visible without auth.
-		visibleUnauthed := !status.IsLocalOnly() && status.Visibility == gtsmodel.VisibilityPublic
-		return visibleUnauthed, nil
+		// Use a different visibility
+		// heuristic for unauthed requests.
+		return f.isStatusVisibleUnauthed(ctx, status)
 	}
 
 	/*
@@ -245,6 +245,62 @@ func (f *Filter) isPendingStatusVisible(
 	return false, nil
 }
 
+func (f *Filter) isStatusVisibleUnauthed(
+	ctx context.Context,
+	status *gtsmodel.Status,
+) (bool, error) {
+	// For remote accounts, only show
+	// Public statuses via the web.
+	if status.Account.IsRemote() {
+		return status.Visibility == gtsmodel.VisibilityPublic, nil
+	}
+
+	// If status is local only,
+	// never show via the web.
+	if status.IsLocalOnly() {
+		return false, nil
+	}
+
+	// Check account's settings to see
+	// what they expose. Populate these
+	// from the DB if necessary.
+	if status.Account.Settings == nil {
+		var err error
+		status.Account.Settings, err = f.state.DB.GetAccountSettings(ctx, status.Account.ID)
+		if err != nil {
+			return false, gtserror.Newf(
+				"error getting settings for account %s: %w",
+				status.Account.ID, err,
+			)
+		}
+	}
+
+	webVisibility := status.Account.Settings.WebVisibility
+	switch webVisibility {
+
+	// public_only: status must be Public.
+	case gtsmodel.VisibilityPublic:
+		return status.Visibility == gtsmodel.VisibilityPublic, nil
+
+	// unlisted: status must be Public or Unlocked.
+	case gtsmodel.VisibilityUnlocked:
+		visible := status.Visibility == gtsmodel.VisibilityPublic ||
+			status.Visibility == gtsmodel.VisibilityUnlocked
+		return visible, nil
+
+	// none: never show via the web.
+	case gtsmodel.VisibilityNone:
+		return false, nil
+
+	// Huh?
+	default:
+		return false, gtserror.Newf(
+			"unrecognized web visibility for account %s: %s",
+			status.Account.ID, webVisibility,
+		)
+	}
+}
+
 // areStatusAccountsVisible calls Filter{}.AccountVisible() on status author and the status boost-of (if set) author, returning visibility of status (and boost-of) to requester.
 func (f *Filter) areStatusAccountsVisible(ctx context.Context, requester *gtsmodel.Account, status *gtsmodel.Status) (bool, error) {
 	// Check whether status author's account is visible to requester.