ms/blueprintsprocessor/modules/commons/rest-lib/src/main/kotlin/org/onap/ccsdk/cds/blueprintsprocessor/rest/service/BasicAuthRestClientService.kt

   1 /*
   2  * Copyright © 2017-2019 AT&T, Bell Canada, Nordix Foundation
   3  *
   4  * Licensed under the Apache License, Version 2.0 (the "License");
   5  * you may not use this file except in compliance with the License.
   6  * You may obtain a copy of the License at
   7  *
   8  *     http://www.apache.org/licenses/LICENSE-2.0
   9  *
  10  * Unless required by applicable law or agreed to in writing, software
  11  * distributed under the License is distributed on an "AS IS" BASIS,
  12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  13  * See the License for the specific language governing permissions and
  14  * limitations under the License.
  15  */
  16
  17 package org.onap.ccsdk.cds.blueprintsprocessor.rest.service
  18
  19 import org.apache.http.message.BasicHeader
  20 import org.onap.ccsdk.cds.blueprintsprocessor.rest.BasicAuthRestClientProperties
  21 import org.springframework.http.HttpHeaders
  22 import org.springframework.http.MediaType
  23 import java.net.URI
  24 import java.nio.charset.Charset
  25 import java.util.Base64
  26
  27 class BasicAuthRestClientService(
  28     private val restClientProperties:
  29         BasicAuthRestClientProperties
  30 ) :
  31     BlueprintWebClientService {
  32
  33     override fun defaultHeaders(): Map<String, String> {
  34
  35         val encodedCredentials = setBasicAuth(
  36             restClientProperties.username,
  37             restClientProperties.password
  38         )
  39         return mapOf(
  40             HttpHeaders.CONTENT_TYPE to MediaType.APPLICATION_JSON_VALUE,
  41             HttpHeaders.ACCEPT to MediaType.APPLICATION_JSON_VALUE,
  42             HttpHeaders.AUTHORIZATION to "Basic $encodedCredentials"
  43         )
  44     }
  45
  46     override fun host(uri: String): String {
  47         val uri: URI = URI.create(restClientProperties.url + uri)
  48         return uri.resolve(uri).toString()
  49     }
  50
  51     override fun convertToBasicHeaders(headers: Map<String, String>):
  52         Array<BasicHeader> {
  53             val customHeaders: MutableMap<String, String> = headers.toMutableMap()
  54             // inject additionalHeaders
  55             customHeaders.putAll(verifyAdditionalHeaders(restClientProperties))
  56
  57             if (!headers.containsKey(HttpHeaders.AUTHORIZATION)) {
  58                 val encodedCredentials = setBasicAuth(
  59                     restClientProperties.username,
  60                     restClientProperties.password
  61                 )
  62                 customHeaders[HttpHeaders.AUTHORIZATION] =
  63                     "Basic $encodedCredentials"
  64             }
  65             return super.convertToBasicHeaders(customHeaders)
  66         }
  67
  68     private fun setBasicAuth(username: String, password: String): String {
  69         val credentialsString = "$username:$password"
  70         return Base64.getEncoder().encodeToString(
  71             credentialsString.toByteArray(Charset.defaultCharset())
  72         )
  73     }
  74 }