diff --git a/options/namesys/opts.go b/options/namesys/opts.go index ee2bd5a..0cd1ba7 100644 --- a/options/namesys/opts.go +++ b/options/namesys/opts.go @@ -13,6 +13,15 @@ const ( // trust resolution to eventually complete and can't put an upper // limit on how many steps it will take. UnlimitedDepth = 0 + + // DefaultIPNSRecordTTL specifies the time that the record can be cached + // before checking if its validity again. + DefaultIPNSRecordTTL = time.Minute + + // DefaultIPNSRecordEOL specifies the time that the network will cache IPNS + // records after being published. Records should be re-published before this + // interval expires. We use the same default expiration as the DHT. + DefaultIPNSRecordEOL = 48 * time.Hour ) // ResolveOpts specifies options for resolving an IPNS path @@ -72,3 +81,43 @@ func ProcessOpts(opts []ResolveOpt) ResolveOpts { } return rsopts } + +// PublishOptions specifies options for publishing an IPNS record. +type PublishOptions struct { + EOL time.Time + TTL time.Duration +} + +// DefaultPublishOptions returns the default options for publishing an IPNS record. +func DefaultPublishOptions() PublishOptions { + return PublishOptions{ + EOL: time.Now().Add(DefaultIPNSRecordEOL), + TTL: DefaultIPNSRecordTTL, + } +} + +// PublishOption is used to set an option for PublishOpts. +type PublishOption func(*PublishOptions) + +// PublishWithEOL sets an EOL. +func PublishWithEOL(eol time.Time) PublishOption { + return func(o *PublishOptions) { + o.EOL = eol + } +} + +// PublishWithEOL sets a TTL. +func PublishWithTTL(ttl time.Duration) PublishOption { + return func(o *PublishOptions) { + o.TTL = ttl + } +} + +// ProcessPublishOptions converts an array of PublishOpt into a PublishOpts object. +func ProcessPublishOptions(opts []PublishOption) PublishOptions { + rsopts := DefaultPublishOptions() + for _, option := range opts { + option(&rsopts) + } + return rsopts +}