gerrit.onap Code Review - ccsdk/cds.git/blob

   1 /*
   2  * Copyright © 2017-2019 AT&T, Bell Canada
   3  * Modifications Copyright © 2019 Huawei.
   4  *
   5  * Licensed under the Apache License, Version 2.0 (the "License");
   6  * you may not use this file except in compliance with the License.
   7  * You may obtain a copy of the License at
   8  *
   9  *     http://www.apache.org/licenses/LICENSE-2.0
  10  *
  11  * Unless required by applicable law or agreed to in writing, software
  12  * distributed under the License is distributed on an "AS IS" BASIS,
  13  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  14  * See the License for the specific language governing permissions and
  15  * limitations under the License.
  16  */
  17
  18 package org.onap.ccsdk.cds.blueprintsprocessor.rest.service
  19
  20 import org.apache.http.conn.ssl.NoopHostnameVerifier
  21 import org.apache.http.conn.ssl.SSLConnectionSocketFactory
  22 import org.apache.http.impl.client.CloseableHttpClient
  23 import org.apache.http.impl.client.HttpClients
  24 import org.apache.http.message.BasicHeader
  25 import org.apache.http.ssl.SSLContextBuilder
  26 import org.onap.ccsdk.cds.blueprintsprocessor.rest.BasicAuthRestClientProperties
  27 import org.onap.ccsdk.cds.blueprintsprocessor.rest.SSLBasicAuthRestClientProperties
  28 import org.onap.ccsdk.cds.blueprintsprocessor.rest.SSLRestClientProperties
  29 import org.onap.ccsdk.cds.blueprintsprocessor.rest.SSLTokenAuthRestClientProperties
  30 import org.onap.ccsdk.cds.blueprintsprocessor.rest.utils.WebClientUtils
  31 import org.springframework.http.HttpHeaders
  32 import org.springframework.http.MediaType
  33 import java.io.File
  34 import java.io.FileInputStream
  35 import java.security.KeyStore
  36 import java.security.cert.X509Certificate
  37
  38 class SSLRestClientService(private val restClientProperties: SSLRestClientProperties) :
  39     BlueprintWebClientService {
  40
  41     var auth: BlueprintWebClientService? = null
  42
  43     init {
  44         auth = getAuthService()
  45     }
  46
  47     private fun getAuthService(): BlueprintWebClientService? {
  48         // type,url and additional headers don't get carried over to TokenAuthRestClientProperties from SSLTokenAuthRestClientProperties
  49         // set them in auth obj to be consistent. TODO: refactor
  50         return when (restClientProperties) {
  51             is SSLBasicAuthRestClientProperties -> {
  52                 val basicAuthProps = BasicAuthRestClientProperties()
  53                 basicAuthProps.username = restClientProperties.username
  54                 basicAuthProps.password = restClientProperties.password
  55                 basicAuthProps.additionalHeaders = restClientProperties.additionalHeaders
  56                 basicAuthProps.url = restClientProperties.url
  57                 basicAuthProps.type = restClientProperties.type
  58                 BasicAuthRestClientService(basicAuthProps)
  59             }
  60             is SSLTokenAuthRestClientProperties -> {
  61                 val token = restClientProperties.tokenAuth!!
  62                 token.additionalHeaders = restClientProperties.additionalHeaders
  63                 token.url = restClientProperties.url
  64                 token.type = restClientProperties.type
  65                 TokenAuthRestClientService(token)
  66             }
  67             else -> {
  68                 // Returns null for No auth
  69                 null
  70             }
  71         }
  72     }
  73
  74     override fun defaultHeaders(): Map<String, String> {
  75         if (auth != null) {
  76             return auth!!.defaultHeaders()
  77         }
  78         return mapOf(
  79             HttpHeaders.CONTENT_TYPE to MediaType.APPLICATION_JSON_VALUE,
  80             HttpHeaders.ACCEPT to MediaType.APPLICATION_JSON_VALUE
  81         )
  82     }
  83
  84     override fun host(uri: String): String {
  85         return restClientProperties.url + uri
  86     }
  87
  88     override fun httpClient(): CloseableHttpClient {
  89
  90         val keystoreInstance = restClientProperties.keyStoreInstance
  91         val sslKey = restClientProperties.sslKey
  92         val sslKeyPwd = restClientProperties.sslKeyPassword
  93         val sslTrust = restClientProperties.sslTrust
  94         val sslTrustPwd = restClientProperties.sslTrustPassword
  95         val sslTrustIgnoreHostname = restClientProperties.sslTrustIgnoreHostname
  96
  97         val acceptingTrustStrategy = { _: Array<X509Certificate>, _: String ->
  98             true
  99         }
 100         val sslContext = SSLContextBuilder.create()
 101
 102         if (sslKey != null && sslKeyPwd != null) {
 103             FileInputStream(sslKey).use { keyInput ->
 104                 val keyStore = KeyStore.getInstance(keystoreInstance)
 105                 keyStore.load(keyInput, sslKeyPwd.toCharArray())
 106                 sslContext.loadKeyMaterial(keyStore, sslKeyPwd.toCharArray())
 107             }
 108         }
 109
 110         sslContext.loadTrustMaterial(File(sslTrust), sslTrustPwd.toCharArray(), acceptingTrustStrategy)
 111         var csf: SSLConnectionSocketFactory
 112         if (sslTrustIgnoreHostname) {
 113             csf = SSLConnectionSocketFactory(sslContext.build(), NoopHostnameVerifier())
 114         } else {
 115             csf = SSLConnectionSocketFactory(sslContext.build())
 116         }
 117         return HttpClients.custom()
 118             .addInterceptorFirst(WebClientUtils.logRequest())
 119             .addInterceptorLast(WebClientUtils.logResponse())
 120             .setSSLSocketFactory(csf).build()
 121     }
 122
 123     // Non Blocking Rest Implementation
 124     override suspend fun httpClientNB(): CloseableHttpClient {
 125         return httpClient()
 126     }
 127
 128     override fun convertToBasicHeaders(headers: Map<String, String>): Array<BasicHeader> {
 129         val mergedDefaultAndSuppliedHeaders = defaultHeaders().plus(headers)
 130         // During the initialization, getAuthService() sets the auth variable.
 131         // If it's not null, then we have an authentication mechanism.
 132         // If null - indicates no-auth used
 133         if (auth != null) {
 134             return auth!!.convertToBasicHeaders(mergedDefaultAndSuppliedHeaders)
 135         }
 136         // inject additionalHeaders
 137         return super.convertToBasicHeaders(
 138             mergedDefaultAndSuppliedHeaders
 139                 .plus(verifyAdditionalHeaders(restClientProperties))
 140         )
 141     }
 142 }