com.microsoft.azure.keyvault.authentication.ChallengeCache Maven / Gradle / Ivy

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This library has been replaced by new Azure SDKs, you can read about them at https://aka.ms/azsdkvalueprop. The latest libraries to interact with the Azure Key Vault service are: (1) https://search.maven.org/artifact/com.azure/azure-security-keyvault-keys. (2) https://search.maven.org/artifact/com.azure/azure-security-keyvault-secrets. (3) https://search.maven.org/artifact/com.azure/azure-security-keyvault-certificates. It is recommended that you move to the new package.

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// Copyright (c) Microsoft Corporation. All rights reserved.
// Licensed under the MIT License.

package com.microsoft.azure.keyvault.authentication;

import java.util.HashMap;
import java.util.Locale;
import java.util.Map;

import okhttp3.HttpUrl;

/**
 * Handles caching of the challenge.
 */
class ChallengeCache {

    private final HashMap> cachedChallenges = new HashMap>();

    /**
     * Uses authority to retrieve the cached values.
     * 
     * @param url
     *            the url that is used as a cache key.
     * @return cached value or null if value is not available.
     */
    public Map getCachedChallenge(HttpUrl url) {
        if (url == null) {
            return null;
        }
        String authority = getAuthority(url);
        authority = authority.toLowerCase(Locale.ENGLISH);
        return cachedChallenges.get(authority);
    }

    /**
     * Uses authority to cache challenge.
     * 
     * @param url
     *            the url that is used as a cache key.
     * @param challenge
     *            the challenge to cache.
     */
    public void addCachedChallenge(HttpUrl url, Map challenge) {
        if (url == null || challenge == null) {
            return;
        }
        String authority = getAuthority(url);
        authority = authority.toLowerCase(Locale.ENGLISH);
        cachedChallenges.put(authority, challenge);
    }

    /**
     * Gets authority of a url.
     * 
     * @param url
     *            the url to get the authority for.
     * @return the authority.
     */
    public String getAuthority(HttpUrl url) {
        String scheme = url.scheme();
        String host = url.host();
        int port = url.port();
        StringBuilder builder = new StringBuilder();
        if (scheme != null) {
            builder.append(scheme).append("://");
        }
        builder.append(host);
        if (port >= 0) {
            builder.append(':').append(port);
        }
        return builder.toString();
    }
}