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node_modules/@azure/msal-common/dist/request/AuthenticationHeaderParser.mjs

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+/*! @azure/msal-common v15.1.1 2025-02-05 */
+'use strict';
+import { createClientConfigurationError } from '../error/ClientConfigurationError.mjs';
+import { Constants, HeaderNames } from '../utils/Constants.mjs';
+import { invalidAuthenticationHeader, missingNonceAuthenticationHeader } from '../error/ClientConfigurationErrorCodes.mjs';
+
+/*
+ * Copyright (c) Microsoft Corporation. All rights reserved.
+ * Licensed under the MIT License.
+ */
+/**
+ * This is a helper class that parses supported HTTP response authentication headers to extract and return
+ * header challenge values that can be used outside the basic authorization flows.
+ */
+class AuthenticationHeaderParser {
+    constructor(headers) {
+        this.headers = headers;
+    }
+    /**
+     * This method parses the SHR nonce value out of either the Authentication-Info or WWW-Authenticate authentication headers.
+     * @returns
+     */
+    getShrNonce() {
+        // Attempt to parse nonce from Authentiacation-Info
+        const authenticationInfo = this.headers[HeaderNames.AuthenticationInfo];
+        if (authenticationInfo) {
+            const authenticationInfoChallenges = this.parseChallenges(authenticationInfo);
+            if (authenticationInfoChallenges.nextnonce) {
+                return authenticationInfoChallenges.nextnonce;
+            }
+            throw createClientConfigurationError(invalidAuthenticationHeader);
+        }
+        // Attempt to parse nonce from WWW-Authenticate
+        const wwwAuthenticate = this.headers[HeaderNames.WWWAuthenticate];
+        if (wwwAuthenticate) {
+            const wwwAuthenticateChallenges = this.parseChallenges(wwwAuthenticate);
+            if (wwwAuthenticateChallenges.nonce) {
+                return wwwAuthenticateChallenges.nonce;
+            }
+            throw createClientConfigurationError(invalidAuthenticationHeader);
+        }
+        // If neither header is present, throw missing headers error
+        throw createClientConfigurationError(missingNonceAuthenticationHeader);
+    }
+    /**
+     * Parses an HTTP header's challenge set into a key/value map.
+     * @param header
+     * @returns
+     */
+    parseChallenges(header) {
+        const schemeSeparator = header.indexOf(" ");
+        const challenges = header.substr(schemeSeparator + 1).split(",");
+        const challengeMap = {};
+        challenges.forEach((challenge) => {
+            const [key, value] = challenge.split("=");
+            // Remove escaped quotation marks (', ") from challenge string to keep only the challenge value
+            challengeMap[key] = unescape(value.replace(/['"]+/g, Constants.EMPTY_STRING));
+        });
+        return challengeMap;
+    }
+}
+
+export { AuthenticationHeaderParser };
+//# sourceMappingURL=AuthenticationHeaderParser.mjs.map