domain blocking more work

internal/visibility/util.go

@@ -3,6 +3,7 @@ package visibility
 import (
 	"fmt"
 
+	"github.com/superseriousbusiness/gotosocial/internal/db"
 	"github.com/superseriousbusiness/gotosocial/internal/gtsmodel"
 )
 
@@ -79,3 +80,20 @@ type relevantAccounts struct {
 	BoostedReplyToAccount *gtsmodel.Account
 	MentionedAccounts     []*gtsmodel.Account
 }
+
+func (f *filter) blockedDomain(host string) (bool, error) {
+	b := &gtsmodel.DomainBlock{}
+	err := f.db.GetWhere([]db.Where{{Key: "domain", Value: host, CaseInsensitive: true}}, b)
+	if err == nil {
+		// block exists
+		return true, nil
+	}
+
+	if _, ok := err.(db.ErrNoEntries); ok {
+		// there are no entries so there's no block
+		return false, nil
+	}
+
+	// there's an actual error
+	return false, err
+}