1 files changed, 32 insertions, 0 deletions
diff --git a/gitosis/access.py b/gitosis/access.py
new file mode 100644
index 0000000..14280ad
--- /dev/null
+++ b/gitosis/access.py
@@ -0,0 +1,32 @@
+from ConfigParser import NoSectionError, NoOptionError
+
+from gitosis import group
+
+def haveAccess(config, user, mode, path):
+    """
+    Map request for write access to allowed path.
+
+    Note for read-only access, the caller should check for write
+    access too.
+
+    Returns ``None`` for no access, or the physical repository path
+    for access granted to that repository.
+    """
+    for groupname in group.getMembership(config=config, user=user):
+        try:
+            repos = config.get('group %s' % groupname, mode)
+        except (NoSectionError, NoOptionError):
+            repos = []
+        else:
+            repos = repos.split()
+
+        if path in repos:
+            return path
+
+        try:
+            mapping = config.get('group %s' % groupname,
+                                 'map %s %s' % (mode, path))
+        except (NoSectionError, NoOptionError):
+            pass
+        else:
+            return mapping