319 lines
11 KiB
Scala
319 lines
11 KiB
Scala
package ch.epfl.lamp
|
|
|
|
import sbt._
|
|
import Keys._
|
|
|
|
// import scalaj.http._
|
|
import java.io.{File, FileInputStream, IOException}
|
|
import org.apache.commons.codec.binary.Base64
|
|
// import play.api.libs.json.{Json, JsObject, JsPath}
|
|
import scala.util.{Failure, Success, Try}
|
|
|
|
/**
|
|
* Provides tasks for submitting the assignment
|
|
*/
|
|
object StudentTasks extends AutoPlugin {
|
|
|
|
override def requires = super.requires && MOOCSettings
|
|
|
|
object autoImport {
|
|
val packageSourcesOnly = TaskKey[File]("packageSourcesOnly", "Package the sources of the project")
|
|
val packageBinWithoutResources = TaskKey[File]("packageBinWithoutResources", "Like packageBin, but without the resources")
|
|
val packageSubmissionZip = TaskKey[File]("packageSubmissionZip")
|
|
val packageSubmission = inputKey[Unit]("package solution as an archive file")
|
|
val runGradingTests = taskKey[Unit]("run black-box tests used for final grading")
|
|
}
|
|
|
|
|
|
import autoImport._
|
|
import MOOCSettings.autoImport._
|
|
|
|
override lazy val projectSettings = Seq(
|
|
packageSubmissionSetting,
|
|
// submitSetting,
|
|
runGradingTestsSettings,
|
|
|
|
fork := true,
|
|
connectInput in run := true,
|
|
outputStrategy := Some(StdoutOutput),
|
|
) ++ packageSubmissionZipSettings
|
|
|
|
lazy val runGradingTestsSettings = runGradingTests := {
|
|
val testSuiteJar = "grading-tests.jar"
|
|
if (!new File(testSuiteJar).exists) {
|
|
throw new MessageOnlyException(s"Could not find tests JarFile: $testSuiteJar")
|
|
}
|
|
|
|
val classPath = s"${(Test / dependencyClasspath).value.map(_.data).mkString(File.pathSeparator)}${File.pathSeparator}$testSuiteJar"
|
|
val junitProcess =
|
|
Fork.java.fork(
|
|
ForkOptions(),
|
|
"-cp" :: classPath ::
|
|
"org.junit.runner.JUnitCore" ::
|
|
(Test / testSuite).value ::
|
|
Nil
|
|
)
|
|
|
|
// Wait for tests to complete.
|
|
junitProcess.exitValue()
|
|
}
|
|
|
|
|
|
/** **********************************************************
|
|
* SUBMITTING A SOLUTION TO COURSERA
|
|
*/
|
|
|
|
val packageSubmissionZipSettings = Seq(
|
|
packageSubmissionZip := {
|
|
val submission = crossTarget.value / "submission.zip"
|
|
val sources = (packageSourcesOnly in Compile).value
|
|
val binaries = (packageBinWithoutResources in Compile).value
|
|
IO.zip(Seq(sources -> "sources.zip", binaries -> "binaries.jar"), submission)
|
|
submission
|
|
},
|
|
artifactClassifier in packageSourcesOnly := Some("sources"),
|
|
artifact in (Compile, packageBinWithoutResources) ~= (art => art.withName(art.name + "-without-resources"))
|
|
) ++
|
|
inConfig(Compile)(
|
|
Defaults.packageTaskSettings(packageSourcesOnly, Defaults.sourceMappings) ++
|
|
Defaults.packageTaskSettings(packageBinWithoutResources, Def.task {
|
|
val relativePaths =
|
|
(unmanagedResources in Compile).value.flatMap(Path.relativeTo((unmanagedResourceDirectories in Compile).value)(_))
|
|
(mappings in (Compile, packageBin)).value.filterNot { case (_, path) => relativePaths.contains(path) }
|
|
})
|
|
)
|
|
|
|
val maxSubmitFileSize = {
|
|
val mb = 1024 * 1024
|
|
10 * mb
|
|
}
|
|
|
|
/** Check that the jar exists, isn't empty, isn't crazy big, and can be read
|
|
* If so, encode jar as base64 so we can send it to Coursera
|
|
*/
|
|
def prepareJar(jar: File, s: TaskStreams): String = {
|
|
val errPrefix = "Error submitting assignment jar: "
|
|
val fileLength = jar.length()
|
|
if (!jar.exists()) {
|
|
s.log.error(errPrefix + "jar archive does not exist\n" + jar.getAbsolutePath)
|
|
failSubmit()
|
|
} else if (fileLength == 0L) {
|
|
s.log.error(errPrefix + "jar archive is empty\n" + jar.getAbsolutePath)
|
|
failSubmit()
|
|
} else if (fileLength > maxSubmitFileSize) {
|
|
s.log.error(errPrefix + "jar archive is too big. Allowed size: " +
|
|
maxSubmitFileSize + " bytes, found " + fileLength + " bytes.\n" +
|
|
jar.getAbsolutePath)
|
|
failSubmit()
|
|
} else {
|
|
val bytes = new Array[Byte](fileLength.toInt)
|
|
val sizeRead = try {
|
|
val is = new FileInputStream(jar)
|
|
val read = is.read(bytes)
|
|
is.close()
|
|
read
|
|
} catch {
|
|
case ex: IOException =>
|
|
s.log.error(errPrefix + "failed to read sources jar archive\n" + ex.toString)
|
|
failSubmit()
|
|
}
|
|
if (sizeRead != bytes.length) {
|
|
s.log.error(errPrefix + "failed to read the sources jar archive, size read: " + sizeRead)
|
|
failSubmit()
|
|
} else encodeBase64(bytes)
|
|
}
|
|
}
|
|
|
|
/** Task to package solution to a given file path */
|
|
lazy val packageSubmissionSetting = packageSubmission := {
|
|
val args: Seq[String] = Def.spaceDelimited("[path]").parsed
|
|
val s: TaskStreams = streams.value // for logging
|
|
val jar = (packageSubmissionZip in Compile).value
|
|
|
|
val base64Jar = prepareJar(jar, s)
|
|
|
|
val path = args.headOption.getOrElse((baseDirectory.value / "submission.jar").absolutePath)
|
|
scala.tools.nsc.io.File(path).writeAll(base64Jar)
|
|
}
|
|
|
|
/*
|
|
/** Task to submit a solution to coursera */
|
|
val submit = inputKey[Unit]("submit solution to Coursera")
|
|
lazy val submitSetting = submit := {
|
|
// Fail if scalafix linting does not pass.
|
|
scalafixLinting.value
|
|
|
|
val args: Seq[String] = Def.spaceDelimited("<arg>").parsed
|
|
val s: TaskStreams = streams.value // for logging
|
|
val jar = (packageSubmissionZip in Compile).value
|
|
|
|
val assignmentDetails =
|
|
courseraId.?.value.getOrElse(throw new MessageOnlyException("This assignment can not be submitted to Coursera because the `courseraId` setting is undefined"))
|
|
val assignmentKey = assignmentDetails.key
|
|
val courseName =
|
|
course.value match {
|
|
case "capstone" => "scala-capstone"
|
|
case "bigdata" => "scala-spark-big-data"
|
|
case other => other
|
|
}
|
|
|
|
val partId = assignmentDetails.partId
|
|
val itemId = assignmentDetails.itemId
|
|
val premiumItemId = assignmentDetails.premiumItemId
|
|
|
|
val (email, secret) = args match {
|
|
case email :: secret :: Nil =>
|
|
(email, secret)
|
|
case _ =>
|
|
val inputErr =
|
|
s"""|Invalid input to `submit`. The required syntax for `submit` is:
|
|
|submit <email-address> <submit-token>
|
|
|
|
|
|The submit token is NOT YOUR LOGIN PASSWORD.
|
|
|It can be obtained from the assignment page:
|
|
|https://www.coursera.org/learn/$courseName/programming/$itemId
|
|
|${
|
|
premiumItemId.fold("") { id =>
|
|
s"""or (for premium learners):
|
|
|https://www.coursera.org/learn/$courseName/programming/$id
|
|
""".stripMargin
|
|
}
|
|
}
|
|
""".stripMargin
|
|
s.log.error(inputErr)
|
|
failSubmit()
|
|
}
|
|
|
|
val base64Jar = prepareJar(jar, s)
|
|
val json =
|
|
s"""|{
|
|
| "assignmentKey":"$assignmentKey",
|
|
| "submitterEmail":"$email",
|
|
| "secret":"$secret",
|
|
| "parts":{
|
|
| "$partId":{
|
|
| "output":"$base64Jar"
|
|
| }
|
|
| }
|
|
|}""".stripMargin
|
|
|
|
def postSubmission[T](data: String): Try[HttpResponse[String]] = {
|
|
val http = Http("https://www.coursera.org/api/onDemandProgrammingScriptSubmissions.v1")
|
|
val hs = List(
|
|
("Cache-Control", "no-cache"),
|
|
("Content-Type", "application/json")
|
|
)
|
|
s.log.info("Connecting to Coursera...")
|
|
val response = Try(http.postData(data)
|
|
.headers(hs)
|
|
.option(HttpOptions.connTimeout(10000)) // scalaj default timeout is only 100ms, changing that to 10s
|
|
.asString) // kick off HTTP POST
|
|
response
|
|
}
|
|
|
|
val connectMsg =
|
|
s"""|Attempting to submit "${assignment.value}" assignment in "$courseName" course
|
|
|Using:
|
|
|- email: $email
|
|
|- submit token: $secret""".stripMargin
|
|
s.log.info(connectMsg)
|
|
|
|
def reportCourseraResponse(response: HttpResponse[String]): Unit = {
|
|
val code = response.code
|
|
val respBody = response.body
|
|
|
|
/* Sample JSON response from Coursera
|
|
{
|
|
"message": "Invalid email or token.",
|
|
"details": {
|
|
"learnerMessage": "Invalid email or token."
|
|
}
|
|
}
|
|
*/
|
|
|
|
// Success, Coursera responds with 2xx HTTP status code
|
|
if (response.is2xx) {
|
|
val successfulSubmitMsg =
|
|
s"""|Successfully connected to Coursera. (Status $code)
|
|
|
|
|
|Assignment submitted successfully!
|
|
|
|
|
|You can see how you scored by going to:
|
|
|https://www.coursera.org/learn/$courseName/programming/$itemId/
|
|
|${
|
|
premiumItemId.fold("") { id =>
|
|
s"""or (for premium learners):
|
|
|https://www.coursera.org/learn/$courseName/programming/$id
|
|
""".stripMargin
|
|
}
|
|
}
|
|
|and clicking on "My Submission".""".stripMargin
|
|
s.log.info(successfulSubmitMsg)
|
|
}
|
|
|
|
// Failure, Coursera responds with 4xx HTTP status code (client-side failure)
|
|
else if (response.is4xx) {
|
|
val result = Try(Json.parse(respBody)).toOption
|
|
val learnerMsg = result match {
|
|
case Some(resp: JsObject) =>
|
|
(JsPath \ "details" \ "learnerMessage").read[String].reads(resp).get
|
|
case Some(x) => // shouldn't happen
|
|
"Could not parse Coursera's response:\n" + x
|
|
case None =>
|
|
"Could not parse Coursera's response:\n" + respBody
|
|
}
|
|
val failedSubmitMsg =
|
|
s"""|Submission failed.
|
|
|There was something wrong while attempting to submit.
|
|
|Coursera says:
|
|
|$learnerMsg (Status $code)""".stripMargin
|
|
s.log.error(failedSubmitMsg)
|
|
}
|
|
|
|
// Failure, Coursera responds with 5xx HTTP status code (server-side failure)
|
|
else if (response.is5xx) {
|
|
val failedSubmitMsg =
|
|
s"""|Submission failed.
|
|
|Coursera seems to be unavailable at the moment (Status $code)
|
|
|Check https://status.coursera.org/ and try again in a few minutes.
|
|
""".stripMargin
|
|
s.log.error(failedSubmitMsg)
|
|
}
|
|
|
|
// Failure, Coursera repsonds with an unexpected status code
|
|
else {
|
|
val failedSubmitMsg =
|
|
s"""|Submission failed.
|
|
|Coursera replied with an unexpected code (Status $code)
|
|
""".stripMargin
|
|
s.log.error(failedSubmitMsg)
|
|
}
|
|
}
|
|
|
|
// kick it all off, actually make request
|
|
postSubmission(json) match {
|
|
case Success(resp) => reportCourseraResponse(resp)
|
|
case Failure(e) =>
|
|
val failedConnectMsg =
|
|
s"""|Connection to Coursera failed.
|
|
|There was something wrong while attempting to connect to Coursera.
|
|
|Check your internet connection.
|
|
|${e.toString}""".stripMargin
|
|
s.log.error(failedConnectMsg)
|
|
}
|
|
|
|
}
|
|
*/
|
|
|
|
def failSubmit(): Nothing = {
|
|
sys.error("Submission failed")
|
|
}
|
|
|
|
/**
|
|
* *****************
|
|
* DEALING WITH JARS
|
|
*/
|
|
def encodeBase64(bytes: Array[Byte]): String =
|
|
new String(Base64.encodeBase64(bytes))
|
|
}
|