violet/target/flags.go

43 lines
1.0 KiB
Go

package target
type Flags uint64
const (
FlagPre Flags = 1 << iota
FlagAbs
FlagCors
FlagSecureMode
FlagForwardHost
FlagForwardAddr
FlagIgnoreCert
FlagWebsocket
)
var (
routeFlagMask = FlagPre | FlagAbs | FlagCors | FlagSecureMode | FlagForwardHost | FlagForwardAddr | FlagIgnoreCert | FlagWebsocket
redirectFlagMask = FlagPre | FlagAbs
)
// HasFlag returns true if the bits contain the requested flag
func (f Flags) HasFlag(flag Flags) bool {
// 0110 & 0100 == 0100 (value != 0 thus true)
// 0011 & 0100 == 0000 (value == 0 thus false)
return f&flag != 0
}
// NormaliseRouteFlags returns only the bits used for routes
func (f Flags) NormaliseRouteFlags() Flags {
// removes bits outside the mask
// 0110 & 0111 == 0110
// 1010 & 0111 == 0010 (values are different)
return f & routeFlagMask
}
// NormaliseRedirectFlags returns only the bits used for redirects
func (f Flags) NormaliseRedirectFlags() Flags {
// removes bits outside the mask
// 0110 & 0111 == 0110
// 1010 & 0111 == 0010 (values are different)
return f & redirectFlagMask
}