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package net.sourceforge.plantuml.security.authentication;

import java.net.InetSocketAddress;
import java.net.Proxy;
import java.util.Arrays;
import java.util.Collections;
import java.util.HashMap;
import java.util.Map;
import java.util.Objects;

import net.sourceforge.plantuml.StringUtils;
import net.sourceforge.plantuml.json.JsonObject;
import net.sourceforge.plantuml.json.JsonValue;

/**
 * Defines a configuration for credentials.
 *
 * @author Aljoscha Rittner
 */
public class SecurityCredentials implements SecurityCredentialsContainer {

	private static final Map EMPTY_MAP = Collections.emptyMap();

	/**
	 * No credentials given.
	 */
	public static final SecurityCredentials NONE = new SecurityCredentials("", "public", null, null);

	/**
	 * Name of the configuration.
	 */
	private final String name;
	/**
	 * The type of authorization and access process (e.g. "basicauth" or "oauth2").
	 */
	private final String type;
	/**
	 * Username or client identifier.
	 */
	private final String identifier;
	/**
	 * User/Client secret information.
	 */
	private final char[] secret;
	/**
	 * Properties defined for a specific authorization and access process.
	 */
	private final Map properties = new HashMap();
	/**
	 * Proxy configuration.
	 * 

*

* {@link Proxy#NO_PROXY} means, we want direct access. null means, we use the * system proxy configuration. */ private final Proxy proxy; /** * Creates BasicAuth credentials without a proxy. * * @param name Name of the credentials * @param type The type of authentication and access process (e.g. * "basicauth" or "oauth2") * @param identifier username, clientId, ... * @param secret the secret information to authenticate the client or user */ public SecurityCredentials(String name, String type, String identifier, char[] secret) { this(name, type, identifier, secret, EMPTY_MAP, null); } /** * Creates BasicAuth credentials with a proxy. * * @param name Name of the credentials * @param type The type of authentication and access process (e.g. * "basicauth" or "oauth2") * @param identifier username, clientId, ... * @param secret the secret information to authenticate the client or user * @param proxy proxy configuration */ public SecurityCredentials(String name, String type, String identifier, char[] secret, Map properties, Proxy proxy) { if (name == null) { throw new NullPointerException("Credential name should not be null"); } this.name = name; this.type = type; this.identifier = identifier; this.secret = secret; this.proxy = proxy; this.properties.putAll(properties); } /** * Creates BasicAuth credentials. * * @param identifier the basic auth user name. * @param secret password * @return credential object */ public static SecurityCredentials basicAuth(String identifier, char[] secret) { return new SecurityCredentials(identifier, "basicauth", identifier, secret); } /** * Creates a SecurityCredentials from a JSON. *

* Example: * *

	 *     {
	 *         "name": "jenkins",
	 *         "identifier": "alice",
	 *         "secret": "secret",
	 *         "proxy": {
	 *             "type": "socket",
	 *             "address": "192.168.1.250",
	 *             "port": 8080
	 *         }
	 *     }
	 * 
* * @param jsonValue a JSON structure * @return the created SecurityCredentials */ public static SecurityCredentials fromJson(JsonValue jsonValue) { try { JsonObject securityObject = jsonValue.asObject(); JsonValue name = securityObject.get("name"); JsonValue type = securityObject.get("type"); JsonValue identifier = securityObject.get("identifier"); JsonValue secret = securityObject.get("secret"); Map map = new HashMap(); buildProperties("", securityObject.get("properties"), map); if (type != null && !type.isNull() && "tokenauth".equals(type.asString())) { return new SecurityCredentials(name.asString(), "tokenauth", null, null, map, proxyFromJson(securityObject.get("proxy"))); } else if (StringUtils.isNotEmpty(name.asString()) && StringUtils.isNotEmpty(identifier.asString())) { String authType = type != null && !type.isNull() ? type.asString() : "basicauth"; return new SecurityCredentials(name.asString(), authType, identifier.asString(), extractSecret(secret), map, proxyFromJson(securityObject.get("proxy"))); } } catch (UnsupportedOperationException use) { // We catch UnsupportedOperationException to stop parsing on unexpected elements } return NONE; } /** * Creates a Proxy object from a JSON value. *

* Example: * *

	 *     {
	 *         "type": "socket",
	 *         "address": "192.168.1.250",
	 *         "port": 8080
	 *     }
	 * 
* * @param proxyValue JSON, that represents a Proxy object * @return Proxy object or null */ private static Proxy proxyFromJson(JsonValue proxyValue) { if (proxyValue != null && !proxyValue.isNull() && proxyValue.isObject()) { Proxy.Type type = Proxy.Type.DIRECT; JsonObject proxyObject = proxyValue.asObject(); JsonValue proxyType = proxyObject.get("type"); if (proxyType != null && !proxyType.isNull()) { type = Proxy.Type.valueOf(proxyType.asString().toUpperCase()); } if (type == Proxy.Type.DIRECT) { return Proxy.NO_PROXY; } JsonValue proxyAddress = proxyObject.get("address"); JsonValue proxyPort = proxyObject.get("port"); if (proxyAddress != null && !proxyAddress.isNull() && !proxyPort.isNull() && proxyPort.isNumber()) { InetSocketAddress address = new InetSocketAddress(proxyAddress.asString(), proxyPort.asInt()); return new Proxy(type, address); } } return null; } /** * Extracts a password, if it is not empty or null. * * @param pwd password json value * @return password or null */ private static char[] extractSecret(JsonValue pwd) { if (pwd == null || pwd.isNull()) { return null; } String pwdStr = pwd.asString(); if (StringUtils.isEmpty(pwdStr)) { return null; } return pwdStr.toCharArray(); } /** * Creates a properties map from all given key/values. *

* Example:
* *

	 *     {
	 *         "grantType": "client_credentials",
	 *         "scope": "read write",
	 *         "accessTokenUri": "https://login-demo.curity.io/oauth/v2/oauth-token"
	 *         "credentials": {
	 *             "identifier": "serviceId",
	 *             "secret": "ServiceSecret"
	 *         }
	 *     }
	 *
	 *     will be transformed to:
	 *
	 *     grantType -> client_credentials
	 *     scope -> read write
	 *     accessTokenUri -> https://login-demo.curity.io/oauth/v2/oauth-token
	 *     credentials.identifier -> serviceId
	 *     credentials.secret -> ServiceSecret
	 * 
* * @param prefix the prefix for the direct children * @param fromValue parent JSON value to read from * @param toMap map to populate */ private static void buildProperties(String prefix, JsonValue fromValue, Map toMap) { if (!isJsonObjectWithMembers(fromValue)) { return; } JsonObject members = fromValue.asObject(); for (String name : members.names()) { JsonValue child = members.get(name); if (child.isArray() || child.isNull()) { // currently, not supported or not needed continue; } String key = StringUtils.isEmpty(prefix) ? name : prefix + '.' + name; if (child.isObject()) { buildProperties(key, child, toMap); } else { if (child.isString()) { toMap.put(key, child.asString()); } else if (child.isBoolean()) { toMap.put(key, child.asBoolean()); } else if (child.isNumber()) { toMap.put(key, child.asDouble()); } } } } /** * Checks, if we have a JSON object with members. * * @param jsonValue the value to check * @return true, if we have members in the JSON object */ private static boolean isJsonObjectWithMembers(JsonValue jsonValue) { return jsonValue != null && !jsonValue.isNull() && jsonValue.isObject() && !jsonValue.asObject().isEmpty(); } public String getName() { return name; } public String getType() { return type; } public String getIdentifier() { return identifier; } public char[] getSecret() { return secret; } public Map getProperties() { return Collections.unmodifiableMap(properties); } /** * Returns the property as String. * * @param key Name of the property * @return String representation */ public String getPropertyStr(String key) { Object value = getProperties().get(key); if (value != null) { return value.toString(); } return null; } /** * Returns the property as characters. * * @param key Name of the property * @return char[] representation */ public char[] getPropertyChars(String key) { Object value = getProperties().get(key); if (value != null) { return value.toString().toCharArray(); } return null; } /** * Returns the property as boolean. * * @param key Name of the property * @return boolean representation */ public boolean getPropertyBool(String key) { Object value = getProperties().get(key); if (value != null) { if (value instanceof Boolean) { return (Boolean) value; } else if (value instanceof String) { return Boolean.parseBoolean((String) value); } } return false; } /** * Returns the property as Number. * * @param key Name of the property * @return boolean representation */ public Number getPropertyNum(String key) { Object value = getProperties().get(key); if (value != null) { if (value instanceof Number) { return (Number) value; } else if (value instanceof String) { return Double.parseDouble((String) value); } } return null; } public Proxy getProxy() { return proxy; } @Override public void eraseCredentials() { if (secret != null && secret.length > 0) { Arrays.fill(secret, '*'); } } @Override public boolean equals(Object o) { if (this == o) return true; if (!(o instanceof SecurityCredentials)) return false; SecurityCredentials that = (SecurityCredentials) o; return getName().equals(that.getName()); } @Override public int hashCode() { return Objects.hash(getName()); } }




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