static.py 文件源码

def getChild(self, path, request):
        """
        If this L{File}'s path refers to a directory, return a L{File}
        referring to the file named C{path} in that directory.

        If C{path} is the empty string, return a L{DirectoryLister} instead.
        """
        self.restat(reraise=False)

        if not self.isdir():
            return self.childNotFound

        if path:
            try:
                fpath = self.child(path)
            except filepath.InsecurePath:
                return self.childNotFound
        else:
            fpath = self.childSearchPreauth(*self.indexNames)
            if fpath is None:
                return self.directoryListing()

        if not fpath.exists():
            fpath = fpath.siblingExtensionSearch(*self.ignoredExts)
            if fpath is None:
                return self.childNotFound

        if platformType == "win32":
            # don't want .RPY to be different than .rpy, since that would allow
            # source disclosure.
            processor = InsensitiveDict(self.processors).get(fpath.splitext()[1])
        else:
            processor = self.processors.get(fpath.splitext()[1])
        if processor:
            return resource.IResource(processor(fpath.path, self.registry))
        return self.createSimilarFile(fpath.path)


    # methods to allow subclasses to e.g. decrypt files on the fly: