org.http4s.server.staticcontent.ResourceService.scala Maven / Gradle / Ivy

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Base library for building http4s servers

There is a newer version: 0.16.6a

package org.http4s
package server
package staticcontent

import java.util.concurrent.ExecutorService

import org.http4s.server._
import org.http4s.{Response, Request, StaticFile}

import scalaz.concurrent.{Strategy, Task}


object ResourceService {

  /** [[ResourceService]] configuration
    *
    * @param basePath prefix of the path files will be served from
    * @param pathPrefix prefix of the Uri that content will be served from
    * @param bufferSize size hint of internal buffers to use when serving resources
    * @param executor [[ExecutorService]] to use when collecting content
    * @param cacheStartegy strategy to use for caching purposes. Default to no caching.
    */
  case class Config(basePath: String,
                    pathPrefix: String = "",
                    bufferSize: Int = 50*1024,
                    executor: ExecutorService = Strategy.DefaultExecutorService,
                    cacheStartegy: CacheStrategy = NoopCacheStrategy)

  /** Make a new [[org.http4s.server.HttpService]] that serves static files. */
  private[staticcontent] def apply(config: Config): Service[Request, Response] = Service.lift { req =>
    val uriPath = req.pathInfo
    if (!uriPath.startsWith(config.pathPrefix))
      HttpService.notFound
    else
      StaticFile.fromResource(sanitize(config.basePath + '/' + getSubPath(uriPath, config.pathPrefix)))
        .fold(HttpService.notFound)(config.cacheStartegy.cache(uriPath, _))
  }
}