Additional fixes for DIR2-LIT More Info page and deep-check/manifest operations (#948)

src/allmydata/check_results.py

@@ -99,7 +99,7 @@ class DeepResultsBase:
     def __init__(self, root_storage_index):
         self.root_storage_index = root_storage_index
         if root_storage_index is None:
-            self.root_storage_index_s = "<none>"
+            self.root_storage_index_s = "<none>"  # is this correct?
         else:
             self.root_storage_index_s = base32.b2a(root_storage_index)
 

src/allmydata/dirnode.py

@@ -356,7 +356,7 @@ class DirectoryNode:
 
     def list(self):
         """I return a Deferred that fires with a dictionary mapping child
-        name to a tuple of (IFileNode or IDirectoryNode, metadata)."""
+        name to a tuple of (IFilesystemNode, metadata)."""
         return self._read()
 
     def has_child(self, name):
@@ -381,7 +381,7 @@ class DirectoryNode:
 
     def get(self, name):
         """I return a Deferred that fires with the named child node,
-        which is either an IFileNode or an IDirectoryNode."""
+        which is an IFilesystemNode."""
         assert isinstance(name, unicode)
         d = self._read()
         d.addCallback(self._get, name)
@@ -389,8 +389,8 @@ class DirectoryNode:
 
     def get_child_and_metadata(self, name):
         """I return a Deferred that fires with the (node, metadata) pair for
-        the named child. The node is either an IFileNode or an
-        IDirectoryNode, and the metadata is a dictionary."""
+        the named child. The node is an IFilesystemNode, and the metadata
+        is a dictionary."""
         assert isinstance(name, unicode)
         d = self._read()
         d.addCallback(self._get_with_metadata, name)
@@ -413,7 +413,7 @@ class DirectoryNode:
         return d
 
     def get_child_at_path(self, path):
-        """Transform a child path into an IDirectoryNode or IFileNode.
+        """Transform a child path into an IFilesystemNode.
 
         I perform a recursive series of 'get' operations to find the named
         descendant node. I return a Deferred that fires with the node, or
@@ -427,7 +427,7 @@ class DirectoryNode:
         return d
 
     def get_child_and_metadata_at_path(self, path):
-        """Transform a child path into an IDirectoryNode or IFileNode and
+        """Transform a child path into an IFilesystemNode and
         a metadata dictionary from the last edge that was traversed.
         """
 
@@ -832,7 +832,7 @@ class DeepChecker:
         root_si = root.get_storage_index()
         self._lp = log.msg(format="deep-check starting (%(si)s),"
                            " verify=%(verify)s, repair=%(repair)s",
-                           si=base32.b2a(root_si), verify=verify, repair=repair)
+                           si=base32.b2a(root_si or ""), verify=verify, repair=repair)
         self._verify = verify
         self._repair = repair
         self._add_lease = add_lease

src/allmydata/web/directory.py

@@ -925,7 +925,7 @@ class ManifestResults(rend.Page, ReloadMixin):
 
         status = { "stats": s["stats"],
                    "finished": m.is_finished(),
-                   "origin": base32.b2a(m.origin_si),
+                   "origin": base32.b2a(m.origin_si or ""),
                    }
         if m.is_finished():
             # don't return manifest/verifycaps/SIs unless the operation is
@@ -946,7 +946,10 @@ class ManifestResults(rend.Page, ReloadMixin):
         return simplejson.dumps(status, indent=1)
 
     def _si_abbrev(self):
-        return base32.b2a(self.monitor.origin_si)[:6]
+        si = self.monitor.origin_si
+        if not si:
+            return "<LIT>"
+        return base32.b2a(si)[:6]
 
     def render_title(self, ctx):
         return T.title["Manifest of SI=%s" % self._si_abbrev()]
@@ -1044,17 +1047,17 @@ class ManifestStreamer(dirnode.DeepStats):
         v = node.get_verify_cap()
         if v:
             v = v.to_string()
-        d["verifycap"] = v
+        d["verifycap"] = v or ""
 
         r = node.get_repair_cap()
         if r:
             r = r.to_string()
-        d["repaircap"] = r
+        d["repaircap"] = r or ""
 
         si = node.get_storage_index()
         if si:
             si = base32.b2a(si)
-        d["storage-index"] = si
+        d["storage-index"] = si or ""
 
         j = simplejson.dumps(d, ensure_ascii=True)
         assert "\n" not in j
@@ -1104,17 +1107,17 @@ class DeepCheckStreamer(dirnode.DeepStats):
         v = node.get_verify_cap()
         if v:
             v = v.to_string()
-        data["verifycap"] = v
+        data["verifycap"] = v or ""
 
         r = node.get_repair_cap()
         if r:
             r = r.to_string()
-        data["repaircap"] = r
+        data["repaircap"] = r or ""
 
         si = node.get_storage_index()
         if si:
             si = base32.b2a(si)
-        data["storage-index"] = si
+        data["storage-index"] = si or ""
 
         if self.repair:
             d = node.check_and_repair(self.monitor, self.verify, self.add_lease)

src/allmydata/web/info.py

@@ -86,7 +86,10 @@ class MoreInfo(rend.Page):
         node = self.original
         if not IDirectoryNode.providedBy(node):
             return ""
-        return ctx.tag[node.get_verify_cap().to_string()]
+        verifier = node.get_verify_cap()
+        if verifier:
+            return ctx.tag[node.get_verify_cap().to_string()]
+        return ""
 
     def render_file_writecap(self, ctx, data):
         node = self.original