python类HTTPError()的实例源码

def __init__(self, url, absolute=False):

        status = '303 See Other'
        newloc = url

        home = web.ctx.environ['HTTP_ORIGIN']
        newloc = urlparse.urljoin(home, url)
        logger.info('seeother: %s', newloc)
        headers = {
            'Content-Type': 'text/html',
            'Location': newloc
        }
        web.webapi.HTTPError.__init__(self, status, headers, "")
        pass

def GET(self, *args, **kwargs):
        """
        """
        response = Response.internal_error()
        try:
            self.log_request()
            with models.Session() as orm:
                web.ctx.orm = orm
                response =  self.get(*args, **kwargs)
                return response
        except:
            logger.exception('BaseHandler failure:')
            status = '500 InternalError'
            headers = {'Content-Type': 'text/html'}
            raise web.HTTPError(status, headers, 'internal error')

def load_sqla(handler):
    web.ctx.orm = scoped_session(sessionmaker(bind=engine))
    try:
        return handler()
    except web.HTTPError:
        web.ctx.orm.commit()
        raise
    except:
        web.ctx.orm.rollback()
        raise
    finally:
        web.ctx.orm.commit()

def get(self, bucket_name):
        prefix = self.get_argument("prefix", u"")
        marker = self.get_argument("marker", u"")
        max_keys = int(self.get_argument("max-keys", 50000))
        path = os.path.abspath(os.path.join(self.application.directory,
                                            bucket_name))
        terse = int(self.get_argument("terse", 0))
        if not path.startswith(self.application.directory) or \
           not os.path.isdir(path):
            raise web.HTTPError(404)
        object_names = []
        for root, dirs, files in os.walk(path):
            for file_name in files:
                object_names.append(os.path.join(root, file_name))
        skip = len(path) + 1
        for i in range(self.application.bucket_depth):
            skip += 2 * (i + 1) + 1
        object_names = [n[skip:] for n in object_names]
        object_names.sort()
        contents = []

        start_pos = 0
        if marker:
            start_pos = bisect.bisect_right(object_names, marker, start_pos)
        if prefix:
            start_pos = bisect.bisect_left(object_names, prefix, start_pos)

        truncated = False
        for object_name in object_names[start_pos:]:
            if not object_name.startswith(prefix):
                break
            if len(contents) >= max_keys:
                truncated = True
                break
            object_path = self._object_path(bucket_name, object_name)
            c = {"Key": object_name}
            if not terse:
                info = os.stat(object_path)
                c.update({
                    "LastModified": datetime.datetime.utcfromtimestamp(
                        info.st_mtime),
                    "Size": info.st_size,
                })
            contents.append(c)
            marker = object_name
        self.render_xml({"ListBucketResult": {
            "Name": bucket_name,
            "Prefix": prefix,
            "Marker": marker,
            "MaxKeys": max_keys,
            "IsTruncated": truncated,
            "Contents": contents,
        }})