From b9bc4eaa3d73977d269161662d8a11a210ef79df Mon Sep 17 00:00:00 2001
From: Guillaume Horel <guillaume.horel@gmail.com>
Date: Fri, 21 Jan 2011 01:06:44 -0500
Subject: Added key management to the component server

---
 example/zaran@alias.fr.nf.zip | Bin 2715 -> 2729 bytes
 server/object.py              |  25 +++++++++++++++++++------
 server/plugin.py              |  16 +++++++++-------
 3 files changed, 28 insertions(+), 13 deletions(-)

diff --git a/example/zaran@alias.fr.nf.zip b/example/zaran@alias.fr.nf.zip
index 6bd6c57..ebe27ee 100644
Binary files a/example/zaran@alias.fr.nf.zip and b/example/zaran@alias.fr.nf.zip differ
diff --git a/server/object.py b/server/object.py
index 73bd96e..2c1692a 100644
--- a/server/object.py
+++ b/server/object.py
@@ -36,22 +36,34 @@ class Object:
     def get_permission(self, user):
         file = open(self.path + 'permissions', 'r')
         for line in file:
-            name, sep, perm = line.rstrip('\n').partition(' ')
+            name, perm, None = line.split()
             if name == user:
                 return int(perm)
 
         return 0
-
+    
+    def get_key(self, user):
+        file = open(self.path + 'permissions', 'r')
+        for line in file:
+            name, perm, key = line.split()
+            if name == user:
+                if not int(perm) & READ:
+                    logging.error("User {} doesn't have read access to object {}"
+                          .format(user, self.hash))
+                    raise PermissionError
+                return key
+        return 0
+    
     def get_child_list(self, user):
         perm = self.get_permission(user)
-        if not perm & LIST :
+        if not perm & LIST:
             logging.error("User {} doesn't have the list permission for object {}"
                           .format(user, self.hash))
             raise PermissionError
 
         file = open(self.path + "childs", 'r')
         result = []
-        for line in file :
+        for line in file:
                 name = line.rstrip('\n')
                 try:
                     child = Object(self.owner, name)
@@ -60,15 +72,16 @@ class Object:
                                                                                self.owner))
                 else:
                     permission = child.get_permission(user)
+                    key = child.get_key(user)
                     if permission > 0:
-                        result.append((name, permission))
+                        result.append((name, permission, key))
 
         file.close()
         return result
 
     def get_content(self, user):
         perm = self.get_permission(user)
-        if not perm & READ :
+        if not perm & READ:
             logging.error("User {} doesn't have read access to object {}"
                           .format(user, self.hash))
             raise PermissionError
diff --git a/server/plugin.py b/server/plugin.py
index 1f456ef..80e9863 100644
--- a/server/plugin.py
+++ b/server/plugin.py
@@ -16,12 +16,13 @@ class AliasQuery(ElementBase):
     namespace = 'alias:query'
     name = 'query'
     plugin_attrib = 'alias'
-    interfaces = set(('node', 'type', 'content', 'permission'))
+    interfaces = set(('node', 'type', 'content', 'permission', 'key'))
     sub_interfaces = set(('content', 'permission'))
 
-    def addItem(self, node, permission = None):
+    def addItem(self, node, key, permission = None):
         item = AliasItem(None, self)
         item['node'] = node
+        item['key']= key
         if permission is not None:
             item['permission'] = str(permission)
 
@@ -29,7 +30,7 @@ class AliasItem(ElementBase):
     namespace = 'alias:query'
     name = 'item'
     plugin_attrib = 'item'
-    interfaces = set(('node', 'permission'))
+    interfaces = set(('node', 'permission', 'key' ))
 
 class AliasPlugin(base.base_plugin):
 
@@ -62,9 +63,8 @@ class AliasPlugin(base.base_plugin):
         node = iq['alias']['node']
         if not node:
             node = hashlib.sha1(callee).hexdigest()
-
         node = Object(callee, node)
-
+        
         if iq['alias']['type'] == 'items':
             try:
                 childs = node.get_child_list(caller)
@@ -74,13 +74,14 @@ class AliasPlugin(base.base_plugin):
                 iq.reply()
                 iq['alias']['type'] = 'items'
                 iq['alias']['node'] = node.hash
-                for name, perm in childs:
-                    iq['alias'].addItem(name, perm)
+                for name, perm, key in childs:
+                    iq['alias'].addItem(name, key, perm)
                 iq.send()
 
         if iq['alias']['type'] == 'content':
             try:
                 content = node.get_content(caller)
+                key = node.get_key(caller)
             except PermissionError:
                 self.send_permission_error(iq, 'Permission')
             else:
@@ -88,4 +89,5 @@ class AliasPlugin(base.base_plugin):
                 iq['alias']['type'] = 'content'
                 iq['alias']['node'] = node.hash
                 iq['alias']['content'] = content
+                iq['alias']['key'] = key
                 iq.send()
\ No newline at end of file
-- 
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