Use the dedicated admin consent endpoint instead of a query parameter (#599)

Author: Avery-Dunn

msal4j-sdk/src/main/java/com/microsoft/aad/msal4j/AuthorizationRequestUrlParameters.java

@@ -34,6 +34,9 @@ public class AuthorizationRequestUrlParameters {
     private String correlationId;
     private boolean instanceAware;
 
+    //Unlike other prompts (which are sent as query parameters), admin consent has its own endpoint format
+    private static final String ADMIN_CONSENT_ENDPOINT = "https://login.microsoftonline.com/{tenant}/adminconsent";
+
     Map<String, List<String>> requestParameters = new HashMap<>();
 
     public static Builder builder(String redirectUri,
@@ -155,7 +158,14 @@ URL createAuthorizationURL(Authority authority,
                                Map<String, List<String>> requestParameters) {
         URL authorizationRequestUrl;
         try {
-            String authorizationCodeEndpoint = authority.authorizationEndpoint();
+            String authorizationCodeEndpoint;
+            if (prompt == Prompt.ADMIN_CONSENT) {
+                authorizationCodeEndpoint = ADMIN_CONSENT_ENDPOINT
+                        .replace("{tenant}", authority.tenant);
+            } else {
+                authorizationCodeEndpoint = authority.authorizationEndpoint();
+            }
+
             String uriString = authorizationCodeEndpoint + "?" +
                     URLUtils.serializeParameters(requestParameters);
 

msal4j-sdk/src/main/java/com/microsoft/aad/msal4j/Prompt.java

@@ -25,14 +25,6 @@ public enum Prompt {
      */
     CONSENT("consent"),
 
-    /**
-     * An administrator should be prompted to consent on behalf of all users in their organization.
-     * <p>
-     * Deprecated, instead use Prompt.ADMIN_CONSENT
-     */
-    @Deprecated
-    ADMING_CONSENT("admin_consent"),
-
     /**
      * An administrator should be prompted to consent on behalf of all users in their organization.
      */