From 1e1b85270f93b3bca624c99b478f3a9a23be2395 Mon Sep 17 00:00:00 2001
From: James Moger <james.moger@gitblit.com>
Date: Sat, 29 Sep 2012 23:40:46 -0400
Subject: [PATCH] Preliminary implementation of server-side forking (issue 137)

---
 src/com/gitblit/models/UserModel.java |   29 +++++++++++++++++++++++++++++
 1 files changed, 29 insertions(+), 0 deletions(-)

diff --git a/src/com/gitblit/models/UserModel.java b/src/com/gitblit/models/UserModel.java
index 8349bab..0ede878 100644
--- a/src/com/gitblit/models/UserModel.java
+++ b/src/com/gitblit/models/UserModel.java
@@ -20,6 +20,7 @@
 import java.util.HashSet;
 import java.util.Set;
 
+import com.gitblit.Constants.AccessRestrictionType;
 import com.gitblit.Constants.AuthorizationControl;
 import com.gitblit.utils.StringUtils;
 
@@ -42,6 +43,7 @@
 	public String displayName;
 	public String emailAddress;
 	public boolean canAdmin;
+	public boolean canFork;
 	public boolean excludeFromFederation;
 	public final Set<String> repositories = new HashSet<String>();
 	public final Set<TeamModel> teams = new HashSet<TeamModel>();
@@ -83,6 +85,33 @@
 		}
 		return false;
 	}
+	
+	public boolean canForkRepository(RepositoryModel repository) {
+		if (canAdmin) {
+			return true;
+		}
+		if (!canFork) {
+			// user has been prohibited from forking
+			return false;
+		}
+		if (!isAuthenticated) {
+			// unauthenticated user model
+			return false;
+		}
+		if (("~" + username).equalsIgnoreCase(repository.projectPath)) {
+			// this repository is already a personal repository
+			return false;
+		}
+		if (!repository.allowForks) {
+			// repository prohibits forks
+			return false;
+		}
+		if (repository.accessRestriction.atLeast(AccessRestrictionType.CLONE)) {
+			return canAccessRepository(repository);
+		}
+		// repository is not clone-restricted
+		return true;
+	}
 
 	public boolean hasRepository(String name) {
 		return repositories.contains(name.toLowerCase());

--
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