1 files changed, 59 insertions, 0 deletions
diff --git a/hotline/access.go b/hotline/access.go
new file mode 100644
index 0000000..21b438f
--- /dev/null
+++ b/hotline/access.go
@@ -0,0 +1,59 @@
+package hotline
+
+import (
+	"encoding/binary"
+	"math/big"
+)
+
+const (
+	accessAlwaysAllow      = -1 // Some transactions are always allowed
+
+	// File System Maintenance
+	accessDeleteFile   = 0
+	accessUploadFile   = 1
+	accessDownloadFile = 2 // Can Download Files
+	accessRenameFile   = 3
+	accessMoveFile     = 4
+	accessCreateFolder = 5
+	accessDeleteFolder = 6
+	accessRenameFolder = 7
+	accessMoveFolder   = 8
+	accessReadChat     = 9
+	accessSendChat     = 10
+	accessOpenChat     = 11
+	// accessCloseChat        = 12 // Documented but unused?
+	// accessShowInList       = 13 // Documented but unused?
+	accessCreateUser = 14
+	accessDeleteUser = 15
+	accessOpenUser   = 16
+	accessModifyUser = 17
+	// accessChangeOwnPass    = 18 // Documented but unused?
+	accessSendPrivMsg      = 19 // This doesn't do what it seems like it should do. TODO: Investigate
+	accessNewsReadArt      = 20
+	accessNewsPostArt      = 21
+	accessDisconUser       = 22 // Toggles red user name in user list
+	accessCannotBeDiscon   = 23
+	accessGetClientInfo    = 24
+	accessUploadAnywhere   = 25
+	accessAnyName          = 26
+	accessNoAgreement      = 27
+	accessSetFileComment   = 28
+	accessSetFolderComment = 29
+	accessViewDropBoxes    = 30
+	accessMakeAlias        = 31
+	accessBroadcast        = 32
+	accessNewsDeleteArt    = 33
+	accessNewsCreateCat    = 34
+	accessNewsDeleteCat    = 35
+	accessNewsCreateFldr   = 36
+	accessNewsDeleteFldr   = 37
+)
+
+func authorize(access *[]byte, accessBit int) bool {
+	if accessBit == accessAlwaysAllow {
+		return true
+	}
+	accessBitmap := big.NewInt(int64(binary.BigEndian.Uint64(*access)))
+
+	return accessBitmap.Bit(63-accessBit) == 1
+}