Add shortcut SSO mode that show hidden availability institutions

Author: cslzchen

src/main/java/io/cos/cas/osf/authentication/support/OsfInstitutionUtils.java

@@ -26,7 +26,7 @@ public final class OsfInstitutionUtils {
 
     public static boolean validateInstitutionForLogin(final JpaOsfDao jpaOsfDao, final String id) {
         final OsfInstitution institution = jpaOsfDao.findOneInstitutionById(id);
-        return institution != null && institution.getDelegationProtocol() != null;
+        return institution != null && institution.getDelegationProtocol() != null && institution.getSsoAvailability() != SsoAvailability.UNAVAILABLE;
     }
 
     public static String getInstitutionSupportEmail(final JpaOsfDao jpaOsfDao, final String id) {
@@ -37,13 +37,14 @@ public static String getInstitutionSupportEmail(final JpaOsfDao jpaOsfDao, final
     public static Map<String, String> getInstitutionLoginUrlMap(
             final JpaOsfDao jpaOsfDao,
             final String target,
-            final String id
+            final String institutionId,
+            boolean isShortcutSso
     ) {
         List<OsfInstitution> institutionList = new LinkedList<>();
-        if (id == null || id.isEmpty()) {
+        if (institutionId == null || institutionId.isEmpty()) {
             institutionList = jpaOsfDao.findAllInstitutions();
         } else {
-            final OsfInstitution institution = jpaOsfDao.findOneInstitutionById(id);
+            final OsfInstitution institution = jpaOsfDao.findOneInstitutionById(institutionId);
             if (institution != null) {
                 institutionList.add(institution);
             } else {
@@ -57,15 +58,21 @@ public static Map<String, String> getInstitutionLoginUrlMap(
                 // Catch a rare exception case where OSF DB has changed the choices of the field
                 // `sso_availability` in table `osf_institution` without syncing with CAS.
                 LOGGER.error(
-                        "Skipped due to invalid SSO Availability: [institutionId={}]",
+                        "Skip invalid SSO availability: [institutionId={}]",
                         institution.getInstitutionId()
                 );
                 continue;
             }
-            if (!ssoAvailability.isPublic()) {
+            if (isShortcutSso && ssoAvailability.isHidden()) {
+                LOGGER.debug(
+                        "Show hidden SSO availability with shortcut URL: [institutionId={}, ssoAvailability={}]",
+                        institution.getInstitutionId(),
+                        ssoAvailability.getId()
+                );
+            } else if (!ssoAvailability.isPublic()) {
                 // Hide institutions of which SSO Availability is not Public
                 LOGGER.debug(
-                        "Skipped because SSO Availability is not public: [institutionId={}, ssoAvailability={}]",
+                        "Skip non-public SSO availability: [institutionId={}, ssoAvailability={}]",
                         institution.getInstitutionId(),
                         ssoAvailability.getId()
                 );

src/main/java/io/cos/cas/osf/authentication/support/SsoAvailability.java

@@ -48,6 +48,10 @@ public boolean isPublic () {
         return SsoAvailability.PUBLIC.equals(this);
     }
 
+    public boolean isHidden () {
+        return SsoAvailability.HIDDEN.equals(this);
+    }
+
     public final String getId() {
         return id;
     }

src/main/java/io/cos/cas/osf/web/flow/login/OsfInstitutionLoginPreparationAction.java

@@ -71,6 +71,7 @@ protected Event doExecute(RequestContext context) {
         }
 
         String institutionId = null;
+        boolean isShortcutSsoMode = false;
         OsfCasLoginContext loginContext;
         loginContext = Optional.of(context).map(requestContext
                 -> (OsfCasLoginContext) requestContext.getFlowScope().get(PARAMETER_LOGIN_CONTEXT)).orElse(null);
@@ -81,6 +82,7 @@ protected Event doExecute(RequestContext context) {
                 context.getFlowScope().put(PARAMETER_LOGIN_CONTEXT, loginContext);
                 institutionId = null;
             } else {
+                isShortcutSsoMode = true;
                 final String institutionSupportEmail = OsfInstitutionUtils.getInstitutionSupportEmail(jpaOsfDao, institutionId);
                 if (institutionSupportEmail != null) {
                     loginContext.setInstitutionSupportEmail(institutionSupportEmail);
@@ -89,7 +91,7 @@ protected Event doExecute(RequestContext context) {
         }
 
         final Map<String, String> institutionLoginUrlMap
-                = OsfInstitutionUtils.getInstitutionLoginUrlMap(jpaOsfDao, target, institutionId);
+                = OsfInstitutionUtils.getInstitutionLoginUrlMap(jpaOsfDao, target, institutionId, isShortcutSsoMode);
         final Map<String, String> institutionLoginUrlMapSorted;
         if (institutionId != null) {
             institutionLoginUrlMapSorted = institutionLoginUrlMap;