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If-Range.scala
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If-Range.scala
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/*
* Copyright 2013 http4s.org
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.http4s
package headers
import cats.parse.Parser
import org.typelevel.ci._
// https://datatracker.ietf.org/doc/html/rfc7233#section-3.2
sealed abstract class `If-Range` extends Product with Serializable
object `If-Range` {
final case class LastModified(date: HttpDate) extends `If-Range`
final case class ETag(tag: EntityTag) extends `If-Range`
def parse(s: String): ParseResult[`If-Range`] =
ParseResult.fromParser(parser, "Invalid If-Range header")(s)
private val parser: Parser[`If-Range`] =
EntityTag.parser
.eitherOr(HttpDate.parser)
.map(_.fold(LastModified(_), ETag(_)))
implicit val headerInstance: Header[`If-Range`, Header.Single] =
Header.createRendered(
ci"If-Range",
{
case LastModified(date) => date
case ETag(tag) => tag
},
parse,
)
}