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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,94 @@ | ||
| package otoroshi.next.plugins | ||
|
|
||
| import otoroshi.env.Env | ||
| import otoroshi.gateway.Errors | ||
| import otoroshi.next.plugins.api._ | ||
| import otoroshi.utils.JsonPathValidator | ||
| import otoroshi.utils.syntax.implicits._ | ||
| import play.api.http.websocket._ | ||
| import play.api.libs.json._ | ||
| import play.api.mvc.{Result, Results} | ||
|
|
||
| import scala.concurrent.{ExecutionContext, Future} | ||
| import scala.util._ | ||
|
|
||
| case class FrameFormatValidatorConfig( | ||
| validator: Option[JsonPathValidator] = None | ||
| ) extends NgPluginConfig { | ||
| def json: JsValue = FrameFormatValidatorConfig.format.writes(this) | ||
| } | ||
|
|
||
| object FrameFormatValidatorConfig { | ||
| val default = FrameFormatValidatorConfig() | ||
| val format = new Format[FrameFormatValidatorConfig] { | ||
| override def writes(o: FrameFormatValidatorConfig): JsValue = Json.obj( | ||
| "validator" -> o.validator.map(_.json) | ||
| ) | ||
| override def reads(json: JsValue): JsResult[FrameFormatValidatorConfig] = { | ||
| Try { | ||
| FrameFormatValidatorConfig( | ||
| validator = (json \ "validator").asOpt[JsValue] | ||
| .flatMap(v => JsonPathValidator.format.reads(v).asOpt) | ||
| ) | ||
| } match { | ||
| case Failure(e) => JsError(e.getMessage) | ||
| case Success(s) => JsSuccess(s) | ||
| } | ||
| } | ||
| } | ||
| } | ||
|
|
||
| class FrameFormatValidator extends NgWebsocketPlugin { | ||
|
|
||
| override def multiInstance: Boolean = true | ||
| override def defaultConfigObject: Option[NgPluginConfig] = Some(FrameFormatValidatorConfig.default) | ||
| override def core: Boolean = false | ||
| override def name: String = "Websocket frame format validator" | ||
| override def description: Option[String] = "Validate the format of each frames".some | ||
| override def visibility: NgPluginVisibility = NgPluginVisibility.NgUserLand | ||
| override def categories: Seq[NgPluginCategory] = Seq(NgPluginCategory.Websocket) | ||
| override def steps: Seq[NgStep] = Seq(NgStep.ValidateAccess) | ||
|
|
||
| override def onResponseFlow: Boolean = true | ||
| override def onRequestFlow: Boolean = true | ||
|
|
||
| private def validate(ctx: NgWebsocketPluginContext, message: String)(implicit env: Env): Boolean = { | ||
| val config = ctx.cachedConfig(internalName)(FrameFormatValidatorConfig.format).getOrElse(FrameFormatValidatorConfig()) | ||
| // val token: JsValue = ctx.attrs | ||
| // .get(otoroshi.next.plugins.Keys.JwtInjectionKey) | ||
| // .flatMap(_.decodedToken) | ||
| // .map { token => | ||
| // Json.obj( | ||
| // "header" -> token.getHeader.fromBase64.parseJson, | ||
| // "payload" -> token.getPayload.fromBase64.parseJson | ||
| // ) | ||
| // } | ||
| // .getOrElse(JsNull) | ||
| val json = ctx.json.asObject ++ Json.obj( | ||
| "route" -> ctx.route.json, | ||
| "message" -> message | ||
| // "token" -> token | ||
| ) | ||
| config.validator.forall(validator => validator.validate(json)) | ||
| } | ||
|
|
||
| override def access(ctx: NgWebsocketPluginContext, message: String)(implicit env: Env, ec: ExecutionContext): Future[NgAccess] = { | ||
| if (validate(ctx, message)) { | ||
| NgAccess.NgAllowed.vfuture | ||
| } else { | ||
| Errors | ||
| .craftResponseResult( | ||
| "forbidden", | ||
| Results.Forbidden, | ||
| ctx.request, | ||
| None, | ||
| None, | ||
| duration = 0L,// ctx.report.getDurationNow(), | ||
| overhead = 0L, //ctx.report.getOverheadInNow(), | ||
| attrs = ctx.attrs, | ||
| maybeRoute = ctx.route.some | ||
| ) | ||
| .map(r => NgAccess.NgDenied(r)) | ||
| } | ||
| } | ||
| } |
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