com.jsuereth.pgp.cli.CommonParsers.scala Maven / Gradle / Ivy

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package com.jsuereth.pgp.cli

import sbt._
import complete._
import DefaultParsers._

object CommonParsers {
  lazy val hexaDigit = chars("ABCDEFGabcdefg0123456789")
  lazy val hexanum = hexaDigit.+ map { _ mkString "" }
  lazy val keyId = token(hexanum, "") map (java.lang.Long.parseLong(_, 16))

  private def hexPublicKeyIds(ctx: PgpStaticContext): Seq[String] =
    try {
      ctx.publicKeyRing.publicKeys.view.map(_.keyID).map("%x" format (_)).toSeq
    } catch {
      case _: Throwable => Seq.empty
    }

  /** Parser for existing public key ids. */
  def existingPublicKeyId(ctx: PgpStaticContext) =
    token(hexanum, "").examples(hexPublicKeyIds(ctx): _*) map (java.lang.Long.parseLong(_, 16))

  lazy val keyIdOrUser: Parser[String] = token(NotSpace, "")

  private def userIds(ctx: PgpStaticContext): Seq[String] =
    try {
      ctx.publicKeyRing.publicKeys.view.flatMap(_.userIDs).toSeq
    } catch {
      case _: Throwable => Seq.empty
    }

  def existingKeyIdOrUser(ctx: PgpStaticContext): Parser[String] =
    keyIdOrUser.examples((userIds(ctx) ++ hexPublicKeyIds(ctx)): _*)
  // TODO - ensure urls are urls
  lazy val hkpUrl = token(NotSpace, "")

  lazy val keyIdOption = token("keyId=") ~> keyId
  lazy val keyIdOrUserOption = token("key=") ~> keyIdOrUser
  def existingKeyIdOrUserOption(ctx: PgpStaticContext) =
    token("key=") ~> existingKeyIdOrUser(ctx)
  lazy val attribute: Parser[(String, String)] = {
    val name = token(NotSpace, "")
    val value = token(NotSpace, "")
    (name ~ ((Space.? ~ "->" ~ Space.?) ~> value)) map { case k ~ v => k -> v }
  }
  lazy val message = token(("message" ~ "=" ~ "\"") map { case _ => () }) ~> (any & not('"', "Expected \".")).+.string <~ '"'
  // TODO - better base directory
  lazy val filename = fileParser(new java.io.File("."))
}