From 0a5c5f8130fce42b1edcfb67c702e25f51aefa13 Mon Sep 17 00:00:00 2001
From: Jesse Andrews <anotherjesse@gmail.com>
Date: Sat, 12 Jun 2010 18:24:27 -0700
Subject: implement image serving in objectstore so nginx isn't required in
 development

reviewed by yosh
---
 nova/objectstore/handler.py | 26 ++++++++++++++++++++++++++
 nova/objectstore/image.py   |  4 ++++
 2 files changed, 30 insertions(+)

(limited to 'nova')

diff --git a/nova/objectstore/handler.py b/nova/objectstore/handler.py
index a7fff12fc..3f00bb0c4 100644
--- a/nova/objectstore/handler.py
+++ b/nova/objectstore/handler.py
@@ -71,6 +71,7 @@ class Application(web.Application):
     def __init__(self, user_manager):
         web.Application.__init__(self, [
             (r"/", RootHandler),
+            (r"/_images/(.+)", ImageDownloadHandler),
             (r"/_images/", ImageHandler),
             (r"/([^/]+)/(.+)", ObjectHandler),
             (r"/([^/]+)/", BucketHandler),
@@ -224,6 +225,31 @@ class ObjectHandler(BaseRequestHandler):
         self.finish()
 
 
+class ImageDownloadHandler(BaseRequestHandler):
+    SUPPORTED_METHODS = ("GET", )
+
+    @catch_nova_exceptions
+    def get(self, image_id):
+        """ send the decrypted image file
+
+        streaming content through python is slow and should only be used
+        in development mode.  You should serve files via a web server
+        in production.
+        """
+
+        self.set_header("Content-Type", "application/octet-stream")
+
+        READ_SIZE = 64*1024
+
+        img = image.Image(image_id)
+        with open(img.image_path, 'rb') as fp:
+            s = fp.read(READ_SIZE)
+            while s:
+                self.write(s)
+                s = fp.read(READ_SIZE)
+
+        self.finish()
+
 class ImageHandler(BaseRequestHandler):
     SUPPORTED_METHODS = ("POST", "PUT", "GET", "DELETE")
 
diff --git a/nova/objectstore/image.py b/nova/objectstore/image.py
index 892ada00c..b8dae4077 100644
--- a/nova/objectstore/image.py
+++ b/nova/objectstore/image.py
@@ -47,6 +47,10 @@ class Image(object):
            not os.path.isdir(self.path):
              raise exception.NotFound
 
+    @property
+    def image_path(self):
+        return os.path.join(self.path, 'image')
+
     def delete(self):
         for fn in ['info.json', 'image']:
             try:
-- 
cgit