1 files changed, 91 insertions, 0 deletions
diff --git a/tools/python/xen/xend/server/SrvDir.py b/tools/python/xen/xend/server/SrvDir.py
new file mode 100644
index 0000000000..c49c0b36ba
--- /dev/null
+++ b/tools/python/xen/xend/server/SrvDir.py
@@ -0,0 +1,91 @@
+# Copyright (C) 2004 Mike Wray <mike.wray@hp.com>
+
+from twisted.web import error
+from xen.xend import sxp
+from SrvBase import SrvBase
+
+class SrvConstructor:
+    """Delayed constructor for sub-servers.
+    Does not import the sub-server class or create the object until needed.
+    """
+    
+    def __init__(self, klass):
+        """Create a constructor. It is assumed that the class
+        should be imported as 'import klass from klass'.
+
+        klass	name of its class
+        """
+        self.klass = klass
+        self.obj = None
+
+    def getobj(self):
+        """Get the sub-server object, importing its class and instantiating it if
+        necessary.
+        """
+        if not self.obj:
+            exec 'from %s import %s' % (self.klass, self.klass)
+            klassobj = eval(self.klass)
+            self.obj = klassobj()
+        return self.obj
+
+class SrvDir(SrvBase):
+    """Base class for directory servlets.
+    """
+    isLeaf = False
+    
+    def __init__(self):
+        SrvBase.__init__(self)
+        self.table = {}
+        self.order = []
+
+    def getChild(self, x, req):
+        if x == '': return self
+        val = self.get(x)
+        if val is None:
+            return error.NoResource('Not found')
+        else:
+            return val
+
+    def get(self, x):
+        val = self.table.get(x)
+        if val is not None:
+            val = val.getobj()
+        return val
+
+    def add(self, x, xclass = None):
+        if xclass is None:
+            xclass = 'SrvDir'
+        self.table[x] = SrvConstructor(xclass)
+        self.order.append(x)
+
+    def render_GET(self, req):
+        if self.use_sxp(req):
+            req.setHeader("Content-type", sxp.mime_type)
+            self.ls(req, 1)
+        else:
+            req.write('<html><head></head><body>')
+            self.print_path(req)
+            self.ls(req)
+            self.form(req)
+            req.write('</body></html>')
+        return ''
+            
+    def ls(self, req, use_sxp=0):
+        url = req.prePathURL()
+        if not url.endswith('/'):
+            url += '/'
+        if use_sxp:
+           req.write('(ls ')
+           for k in self.order:
+               req.write(' ' + k)
+           req.write(')')
+        else:
+            req.write('<ul>')
+            for k in self.order:
+                v = self.get(k)
+                req.write('<li><a href="%s%s">%s</a></li>'
+                          % (url, k, k))
+            req.write('</ul>')
+
+    def form(self, req):
+        pass