Source

CherryPy / cherrypy / _cputil.py

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cherrypy/_cputil.py

-"""
-Copyright (c) 2004, CherryPy Team (team@cherrypy.org)
-All rights reserved.
-
-Redistribution and use in source and binary forms, with or without modification, 
-are permitted provided that the following conditions are met:
-
-    * Redistributions of source code must retain the above copyright notice, 
-      this list of conditions and the following disclaimer.
-    * Redistributions in binary form must reproduce the above copyright notice, 
-      this list of conditions and the following disclaimer in the documentation 
-      and/or other materials provided with the distribution.
-    * Neither the name of the CherryPy Team nor the names of its contributors 
-      may be used to endorse or promote products derived from this software 
-      without specific prior written permission.
-
-THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND 
-ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 
-WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 
-DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE 
-FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 
-DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 
-SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER 
-CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, 
-OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 
-OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-"""
-
-
-"""
-A module containing a few utility classes/functions used by CherryPy
-"""
-
-import time, thread, cpg, _cpdefaults, cperror
-
-try: import zlib
-except ImportError: pass
-
-class EmptyClass:
-    """ An empty class """
-    pass
-
-class ThreadAwareClass:
-    """ A thread-safe class for storing/retrieving
-        thread-specific variables """
-
-    def __init__(self):
-        self.__dict__['threadMap'] = {} # Used to store variables
-
-    def __setattr__(self, name, value):
-        id = thread.get_ident()
-        if not self.__dict__['threadMap'].has_key(id):
-            self.__dict__['threadMap'][id] = {}
-        self.threadMap[id][name] = value
-
-    def __getattr__(self, name):
-        id = thread.get_ident()
-        return self.__dict__['threadMap'][id][name]
-
-def getSpecialFunction(name):
-    """ Return the special function """
-
-    # First, we look in the right-most object if this special function is implemented.
-    # If not, then we try the previous object and so on until we reach cpg.root
-    # If it's still not there, we use the implementation from the
-    # "_cpdefaults.py" module
-    
-
-    moduleList = [_cpdefaults]
-    root = getattr(cpg, 'root', None)
-    if root:
-        moduleList.append(root)
-        # Try object path
-        try:
-            path = cpg.request.objectPath or cpg.request.path
-        except:
-            path = '/'
-        if path:
-            pathList = path.split('/')[1:]
-
-            obj = cpg.root
-            previousObj = None
-            # Successively get objects from the path
-            for newObj in pathList:
-                previousObj = obj
-                try:
-                    obj = getattr(obj, newObj)
-                    moduleList.append(obj)
-                except AttributeError:
-                    break
-
-    moduleList.reverse()
-    for module in moduleList:
-        func = getattr(module, name, None)
-        if func != None:
-            return func
-
-    raise cperror.InternalError, "Special function %s could not be found" % repr(name)
-
+"""
+Copyright (c) 2004, CherryPy Team (team@cherrypy.org)
+All rights reserved.
+
+Redistribution and use in source and binary forms, with or without modification, 
+are permitted provided that the following conditions are met:
+
+    * Redistributions of source code must retain the above copyright notice, 
+      this list of conditions and the following disclaimer.
+    * Redistributions in binary form must reproduce the above copyright notice, 
+      this list of conditions and the following disclaimer in the documentation 
+      and/or other materials provided with the distribution.
+    * Neither the name of the CherryPy Team nor the names of its contributors 
+      may be used to endorse or promote products derived from this software 
+      without specific prior written permission.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND 
+ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 
+WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 
+DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE 
+FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 
+DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 
+SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER 
+CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, 
+OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+"""
+
+
+"""
+A module containing a few utility classes/functions used by CherryPy
+"""
+
+import time, thread, cpg, _cpdefaults, cperror
+
+try: import zlib
+except ImportError: pass
+
+class EmptyClass:
+    """ An empty class """
+    pass
+
+class ThreadAwareClass:
+    """ A thread-safe class for storing/retrieving
+        thread-specific variables """
+
+    def __init__(self):
+        self.__dict__['threadMap'] = {} # Used to store variables
+
+    def __setattr__(self, name, value):
+        id = thread.get_ident()
+        if not self.__dict__['threadMap'].has_key(id):
+            self.__dict__['threadMap'][id] = {}
+        self.threadMap[id][name] = value
+
+    def __getattr__(self, name):
+        id = thread.get_ident()
+        return self.__dict__['threadMap'][id][name]
+
+def getSpecialFunction(name):
+    """ Return the special function """
+
+    # First, we look in the right-most object if this special function is implemented.
+    # If not, then we try the previous object and so on until we reach cpg.root
+    # If it's still not there, we use the implementation from the
+    # "_cpdefaults.py" module
+    
+
+    moduleList = [_cpdefaults]
+    root = getattr(cpg, 'root', None)
+    if root:
+        moduleList.append(root)
+        # Try object path
+        try:
+            path = cpg.request.objectPath or cpg.request.path
+        except:
+            path = '/'
+        if path:
+            pathList = path.split('/')[1:]
+
+            obj = cpg.root
+            previousObj = None
+            # Successively get objects from the path
+            for newObj in pathList:
+                previousObj = obj
+                try:
+                    obj = getattr(obj, newObj)
+                    moduleList.append(obj)
+                except AttributeError:
+                    break
+
+    moduleList.reverse()
+    for module in moduleList:
+        func = getattr(module, name, None)
+        if func != None:
+            return func
+
+    raise cperror.InternalError, "Special function %s could not be found" % repr(name)
+