From d67a085b9cd6e5d0f796d24961c5b11902e5263a Mon Sep 17 00:00:00 2001
From: Robert Sesek <rsesek@bluestatic.org>
Date: Mon, 30 Aug 2010 14:08:23 -0400
Subject: [PATCH] Add path listing service.

---
 build.py      |  1 +
 src/paths.go  | 40 ++++++++++++++++++++++++++++++++++++++++
 src/server.go |  8 +++++++-
 3 files changed, 48 insertions(+), 1 deletion(-)
 create mode 100644 src/paths.go

diff --git a/build.py b/build.py
index ac125bf..1f2328f 100755
--- a/build.py
+++ b/build.py
@@ -16,6 +16,7 @@ CLOSURE_COMPILER = os.path.join(ROOT, 'closure-compiler.jar')
 CLOSURE_CALCDEPS = os.path.join(CLOSURE_DEST, 'closure', 'bin', 'calcdeps.py')
 
 SOURCES = [
+  'paths.go',
   'server.go',
   'main.go'
 ]
diff --git a/src/paths.go b/src/paths.go
new file mode 100644
index 0000000..896b5cd
--- /dev/null
+++ b/src/paths.go
@@ -0,0 +1,40 @@
+package paths
+
+import (
+  "container/vector"
+  "os"
+  "path"
+)
+
+const kJailRoot = "/Users/rsesek/Downloads"
+
+func canonicalizePath(raw_path string) string {
+  raw_path = path.Join(kJailRoot, raw_path)
+  return path.Clean(raw_path)
+}
+
+func checkInJail(path string) bool {
+  return true
+}
+
+func List(the_path string) (files vector.StringVector, err os.Error) {
+  full_path := canonicalizePath(the_path)
+  if !checkInJail(full_path) {
+    return nil, os.NewError("path outside of jail")
+  }
+  
+  fd, file_error := os.Open(full_path, os.O_RDONLY, 0)
+  if file_error != nil {
+    return nil, file_error
+  }
+  
+  fileinfos, read_err := fd.Readdir(-1)
+  if read_err != nil {
+    return nil, read_err
+  }
+  
+  for _, info := range fileinfos {
+    files.Push(info.Name)
+  }
+  return files, nil
+}
diff --git a/src/server.go b/src/server.go
index 294c0fa..026f78d 100644
--- a/src/server.go
+++ b/src/server.go
@@ -7,6 +7,7 @@ import (
   "json"
   "os"
   "path"
+  "./paths"
 )
 
 const kFrontEndFiles = "/Users/rsesek/Projects/armadillo/out/fe/"
@@ -28,7 +29,12 @@ func serviceHandler(connection *http.Conn, request *http.Request) {
   
   switch request.FormValue("action") {
     case "list":
-      okResponse(connection, "Request received")
+      files, err := paths.List("./")
+      if err != nil {
+        errorResponse(connection, err.String())
+      } else {
+        okResponse(connection, files)        
+      }
       return
   }
   
-- 
2.22.5