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fix: SnakeYaml uses SafeConstructor or delegates to Fabric8 Kubernete…
…s Client Signed-off-by: Marc Nuri <marc@marcnuri.com>
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116 changes: 116 additions & 0 deletions
116
...ld/api/src/main/java/org/eclipse/jkube/kit/build/api/helper/KubernetesConfigAuthUtil.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,116 @@ | ||
| /** | ||
| * Copyright (c) 2019 Red Hat, Inc. | ||
| * This program and the accompanying materials are made | ||
| * available under the terms of the Eclipse Public License 2.0 | ||
| * which is available at: | ||
| * | ||
| * https://www.eclipse.org/legal/epl-2.0/ | ||
| * | ||
| * SPDX-License-Identifier: EPL-2.0 | ||
| * | ||
| * Contributors: | ||
| * Red Hat, Inc. - initial API and implementation | ||
| */ | ||
| package org.eclipse.jkube.kit.build.api.helper; | ||
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| import com.fasterxml.jackson.core.type.TypeReference; | ||
| import io.fabric8.kubernetes.client.utils.Serialization; | ||
| import org.eclipse.jkube.kit.build.api.auth.AuthConfig; | ||
|
|
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| import java.io.File; | ||
| import java.io.FileInputStream; | ||
| import java.io.IOException; | ||
| import java.nio.file.Path; | ||
| import java.nio.file.Paths; | ||
| import java.util.Collections; | ||
| import java.util.List; | ||
| import java.util.Map; | ||
| import java.util.regex.Matcher; | ||
| import java.util.regex.Pattern; | ||
|
|
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| public class KubernetesConfigAuthUtil { | ||
|
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| private static final String KUBECONFIG_ENV = "KUBECONFIG"; | ||
| private static final Path KUBECONFIG_FILE = Paths.get(".kube", "config"); | ||
|
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| private KubernetesConfigAuthUtil() { | ||
| } | ||
|
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| public static AuthConfig readKubeConfigAuth() { | ||
| Map<String, ?> kubeConfig = readKubeConfig(); | ||
| if (kubeConfig == null) { | ||
| return null; | ||
| } | ||
| String currentContextName = (String) kubeConfig.get("current-context"); | ||
| if (currentContextName == null) { | ||
| return null; | ||
| } | ||
|
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| for (Map<String, ?> contextMap : (List<Map<String, ?>>) kubeConfig.get("contexts")) { | ||
| if (currentContextName.equals(contextMap.get("name"))) { | ||
| return parseContext(kubeConfig, (Map<String, ?>) contextMap.get("context")); | ||
| } | ||
| } | ||
|
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| return null; | ||
| } | ||
|
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| private static AuthConfig parseContext(Map<String, ?> kubeConfig, Map<String, ?> context) { | ||
| if (context == null) { | ||
| return null; | ||
| } | ||
| String userName = (String) context.get("user"); | ||
| if (userName == null) { | ||
| return null; | ||
| } | ||
|
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| List<Map<String, ?>> users = (List<Map<String, ?>>) kubeConfig.get("users"); | ||
| if (users == null) { | ||
| return null; | ||
| } | ||
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| for (Map<String, ?> userMap : users) { | ||
| if (userName.equals(userMap.get("name"))) { | ||
| return parseUser(userName, (Map<String, ?>) userMap.get("user")); | ||
| } | ||
| } | ||
| return null; | ||
| } | ||
|
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| private static AuthConfig parseUser(String userName, Map<String, ?> user) { | ||
| if (user == null) { | ||
| return null; | ||
| } | ||
| String token = (String) user.get("token"); | ||
| if (token == null) { | ||
| return null; | ||
| } | ||
|
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| // Strip off stuff after username | ||
| Matcher matcher = Pattern.compile("^([^/]+).*$").matcher(userName); | ||
| return AuthConfig.builder() | ||
| .username(matcher.matches() ? matcher.group(1) : userName) | ||
| .password(token) | ||
| .build(); | ||
| } | ||
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| private static Map<String, Object> readKubeConfig() { | ||
| String kubeConfig = System.getenv(KUBECONFIG_ENV); | ||
| final File applicableFile = kubeConfig == null ? | ||
| getHomeDir().toPath().resolve(KUBECONFIG_FILE).toFile() : new File(kubeConfig); | ||
| if (applicableFile.exists()) { | ||
| try (FileInputStream fis = new FileInputStream(applicableFile)) { | ||
| return Serialization.unmarshal(fis, new TypeReference<Map<String, Object>>() {}); | ||
| } catch (IOException ex) { | ||
| // Ignore | ||
| } | ||
| } | ||
| return Collections.emptyMap(); | ||
| } | ||
|
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| private static File getHomeDir() { | ||
| String homeDir = System.getProperty("user.home") != null ? System.getProperty("user.home") : System.getenv("HOME"); | ||
| return new File(homeDir); | ||
| } | ||
| } |
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