vm.py 文件源码

def read_vm_file(self, path, uri="qemu:///system"):
        FILE_OPEN_READ="""{"execute":"guest-file-open", "arguments":{"path":"%s","mode":"r"}}"""
        FILE_READ="""{"execute":"guest-file-read", "arguments":{"handle":%s,"count":%d}}"""
        FILE_CLOSE="""{"execute":"guest-file-close", "arguments":{"handle":%s}}"""

        file_handle=-1
        try:
            file_handle=self.EXE(FILE_OPEN_READ % path)["return"]
            file_content=self.EXE(FILE_READ % (file_handle,1024000))["return"]["buf-b64"]
            file_content = base64.standard_b64decode(file_content)
        except Exception,e:
            logger.exception(e)
            return None
        finally:
            self.EXE(FILE_CLOSE % file_handle)
        return file_content