From 9715e11fe30eccafa4c8272316883c80ba036a6e Mon Sep 17 00:00:00 2001
From: James Moger <james.moger@gitblit.com>
Date: Thu, 02 May 2013 22:59:02 -0400
Subject: [PATCH] Improve permission determination when repo is frozen or is not bare

---
 src/main/java/com/gitblit/models/UserModel.java |   47 ++++++++++++++++++++++++++++++++++++++---------
 1 files changed, 38 insertions(+), 9 deletions(-)

diff --git a/src/main/java/com/gitblit/models/UserModel.java b/src/main/java/com/gitblit/models/UserModel.java
index 5750d46..e4c659c 100644
--- a/src/main/java/com/gitblit/models/UserModel.java
+++ b/src/main/java/com/gitblit/models/UserModel.java
@@ -278,18 +278,31 @@
 		ap.registrantType = RegistrantType.USER;
 		ap.permission = AccessPermission.NONE;
 		ap.mutable = false;
+		
+		// determine maximum permission for the repository
+		final AccessPermission maxPermission = 
+				(repository.isFrozen || !repository.isBare) ?
+						AccessPermission.CLONE : AccessPermission.REWIND;
 
 		if (AccessRestrictionType.NONE.equals(repository.accessRestriction)) {
 			// anonymous rewind
 			ap.permissionType = PermissionType.ANONYMOUS;
-			ap.permission = AccessPermission.REWIND;
+			if (AccessPermission.REWIND.atMost(maxPermission)) {
+				ap.permission = AccessPermission.REWIND;
+			} else {
+				ap.permission = maxPermission;
+			}
 			return ap;
 		}
 
 		// administrator
 		if (canAdmin()) {
 			ap.permissionType = PermissionType.ADMINISTRATOR;
-			ap.permission = AccessPermission.REWIND;
+			if (AccessPermission.REWIND.atMost(maxPermission)) {
+				ap.permission = AccessPermission.REWIND;
+			} else {
+				ap.permission = maxPermission;
+			}
 			if (!canAdmin) {
 				// administator permission from team membership
 				for (TeamModel team : teams) {
@@ -305,13 +318,21 @@
 		// repository owner - either specified owner or personal repository
 		if (repository.isOwner(username) || repository.isUsersPersonalRepository(username)) {
 			ap.permissionType = PermissionType.OWNER;
-			ap.permission = AccessPermission.REWIND;
+			if (AccessPermission.REWIND.atMost(maxPermission)) {
+				ap.permission = AccessPermission.REWIND;
+			} else {
+				ap.permission = maxPermission;
+			}
 			return ap;
 		}
 		
 		if (AuthorizationControl.AUTHENTICATED.equals(repository.authorizationControl) && isAuthenticated) {
 			// AUTHENTICATED is a shortcut for authorizing all logged-in users RW+ access
-			ap.permission = AccessPermission.REWIND;
+			if (AccessPermission.REWIND.atMost(maxPermission)) {
+				ap.permission = AccessPermission.REWIND;
+			} else {
+				ap.permission = maxPermission;
+			}
 			return ap;
 		}
 		
@@ -322,7 +343,11 @@
 			AccessPermission p = permissions.get(repository.name.toLowerCase());
 			if (p != null && repository.accessRestriction.isValidPermission(p)) {
 				ap.permissionType = PermissionType.EXPLICIT;
-				ap.permission = p;
+				if (p.atMost(maxPermission)) {
+					ap.permission = p;
+				} else {
+					ap.permission = maxPermission;
+				}
 				ap.mutable = true;
 				return ap;
 			}
@@ -334,7 +359,11 @@
 					if (p != null && repository.accessRestriction.isValidPermission(p)) {
 						// take first match
 						ap.permissionType = PermissionType.REGEX;
-						ap.permission = p;
+						if (p.atMost(maxPermission)) {
+							ap.permission = p;
+						} else {
+							ap.permission = maxPermission;
+						}
 						ap.source = key;
 						return ap;
 					}
@@ -345,7 +374,7 @@
 		// try to find a team match
 		for (TeamModel team : teams) {
 			RegistrantAccessPermission p = team.getRepositoryPermission(repository);
-			if (p.permission.exceeds(ap.permission) && PermissionType.ANONYMOUS != p.permissionType) {
+			if (p.permission.atMost(maxPermission) && p.permission.exceeds(ap.permission) && PermissionType.ANONYMOUS != p.permissionType) {
 				// use highest team permission that is not an implicit permission
 				ap.permission = p.permission;
 				ap.source = team.name;
@@ -370,8 +399,8 @@
 				ap.permissionType = PermissionType.ANONYMOUS;
 				break;
 			case NONE:
-				// implied REWIND or CLONE if frozen
-				ap.permission = repository.isFrozen ? AccessPermission.CLONE : AccessPermission.REWIND;
+				// implied REWIND or CLONE
+				ap.permission = maxPermission;
 				ap.permissionType = PermissionType.ANONYMOUS;
 				break;
 			}

--
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