Exemple #1
0
    def handle_object(self, env, start_response):
        """
        Handles a possible static web request for an object. This object could
        resolve into an index or listing request.

        :param env: The original WSGI environment dict.
        :param start_response: The original WSGI start_response hook.
        """
        tmp_env = dict(env)
        tmp_env['HTTP_USER_AGENT'] = \
            '%s StaticWeb' % env.get('HTTP_USER_AGENT')
        resp = self._app_call(tmp_env)
        status_int = self._get_status_int()
        if is_success(status_int) or is_redirection(status_int):
            start_response(self._response_status, self._response_headers,
                           self._response_exc_info)
            return resp
        if status_int != HTTP_NOT_FOUND:
            return self._error_response(resp, env, start_response)
        self._get_container_info(env)
        if not self._listings and not self._index:
            return self.app(env, start_response)
        status_int = HTTP_NOT_FOUND
        if self._index:
            tmp_env = dict(env)
            tmp_env['HTTP_USER_AGENT'] = \
                '%s StaticWeb' % env.get('HTTP_USER_AGENT')
            if tmp_env['PATH_INFO'][-1] != '/':
                tmp_env['PATH_INFO'] += '/'
            tmp_env['PATH_INFO'] += self._index
            resp = self._app_call(tmp_env)
            status_int = self._get_status_int()
            if is_success(status_int) or is_redirection(status_int):
                if env['PATH_INFO'][-1] != '/':
                    resp = HTTPMovedPermanently(
                        location=env['PATH_INFO'] + '/')
                    self._log_response(env, resp.status_int)
                    return resp(env, start_response)
                start_response(self._response_status, self._response_headers,
                               self._response_exc_info)
                return resp
        if status_int == HTTP_NOT_FOUND:
            if env['PATH_INFO'][-1] != '/':
                tmp_env = make_pre_authed_env(env, 'GET',
                            '/%s/%s/%s' % (self.version, self.account,
                                           self.container),
                            self.agent)
                tmp_env['QUERY_STRING'] = 'limit=1&format=json&delimiter' \
                    '=/&limit=1&prefix=%s' % quote(self.obj + '/')
                resp = self._app_call(tmp_env)
                body = ''.join(resp)
                if not is_success(self._get_status_int()) or not body or \
                        not json.loads(body):
                    resp = HTTPNotFound()(env, self._start_response)
                    return self._error_response(resp, env, start_response)
                resp = HTTPMovedPermanently(location=env['PATH_INFO'] +
                    '/')
                self._log_response(env, resp.status_int)
                return resp(env, start_response)
            return self._listing(env, start_response, self.obj)
Exemple #2
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    def handle_container(self, env, start_response):
        """
        Handles a possible static web request for a container.

        :param env: The original WSGI environment dict.
        :param start_response: The original WSGI start_response hook.
        """
        self._get_container_info(env)
        if not self._listings and not self._index:
            if config_true_value(env.get('HTTP_X_WEB_MODE', 'f')):
                return HTTPNotFound()(env, start_response)
            return self.app(env, start_response)
        if not env['PATH_INFO'].endswith('/'):
            resp = HTTPMovedPermanently(location=(env['PATH_INFO'] + '/'))
            return resp(env, start_response)
        if not self._index:
            return self._listing(env, start_response)
        tmp_env = dict(env)
        tmp_env['HTTP_USER_AGENT'] = \
            '%s StaticWeb' % env.get('HTTP_USER_AGENT')
        tmp_env['swift.source'] = 'SW'
        tmp_env['PATH_INFO'] += self._index
        resp = self._app_call(tmp_env)
        status_int = self._get_status_int()
        if status_int == HTTP_NOT_FOUND:
            return self._listing(env, start_response)
        elif not is_success(self._get_status_int()) and \
                not is_redirection(self._get_status_int()):
            return self._error_response(resp, env, start_response)
        start_response(self._response_status, self._response_headers,
                       self._response_exc_info)
        return resp
Exemple #3
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    def handle_container(self, env, start_response):
        """
        Handles a possible static web request for a container.

        :param env: The original WSGI environment dict.
        :param start_response: The original WSGI start_response hook.
        """
        self._get_container_info(env)
        if not self._listings and not self._index:
            if env.get("HTTP_X_WEB_MODE", "f").lower() in TRUE_VALUES:
                return HTTPNotFound()(env, start_response)
            return self.app(env, start_response)
        if env["PATH_INFO"][-1] != "/":
            resp = HTTPMovedPermanently(location=(env["PATH_INFO"] + "/"))
            self._log_response(env, resp.status_int)
            return resp(env, start_response)
        if not self._index:
            return self._listing(env, start_response)
        tmp_env = dict(env)
        tmp_env["HTTP_USER_AGENT"] = "%s StaticWeb" % env.get("HTTP_USER_AGENT")
        tmp_env["PATH_INFO"] += self._index
        resp = self._app_call(tmp_env)
        status_int = self._get_status_int()
        if status_int == HTTP_NOT_FOUND:
            return self._listing(env, start_response)
        elif not is_success(self._get_status_int()) or not is_redirection(self._get_status_int()):
            return self._error_response(resp, env, start_response)
        start_response(self._response_status, self._response_headers, self._response_exc_info)
        return resp
Exemple #4
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    def handle_container(self, env, start_response):
        """
        Handles a possible static web request for a container.

        :param env: The original WSGI environment dict.
        :param start_response: The original WSGI start_response hook.
        """
        self._get_container_info(env)
        if not self._listings and not self._index:
            if config_true_value(env.get('HTTP_X_WEB_MODE', 'f')):
                return HTTPNotFound()(env, start_response)
            return self.app(env, start_response)
        if env['PATH_INFO'][-1] != '/':
            resp = HTTPMovedPermanently(
                location=(env['PATH_INFO'] + '/'))
            return resp(env, start_response)
        if not self._index:
            return self._listing(env, start_response)
        tmp_env = dict(env)
        tmp_env['HTTP_USER_AGENT'] = \
            '%s StaticWeb' % env.get('HTTP_USER_AGENT')
        tmp_env['swift.source'] = 'SW'
        tmp_env['PATH_INFO'] += self._index
        resp = self._app_call(tmp_env)
        status_int = self._get_status_int()
        if status_int == HTTP_NOT_FOUND:
            return self._listing(env, start_response)
        elif not is_success(self._get_status_int()) or \
                not is_redirection(self._get_status_int()):
            return self._error_response(resp, env, start_response)
        start_response(self._response_status, self._response_headers,
                       self._response_exc_info)
        return resp
Exemple #5
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    def is_good_source(self, src):
        """
        Indicates whether or not the request made to the backend found
        what it was looking for.

        :param src: the response from the backend
        :returns: True if found, False if not
        """
        return is_success(src.status) or is_redirection(src.status)
Exemple #6
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    def is_good_source(self, src):
        """
        Indicates whether or not the request made to the backend found
        what it was looking for.

        :param src: the response from the backend
        :returns: True if found, False if not
        """
        return is_success(src.status) or is_redirection(src.status)
Exemple #7
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 def _timing_stats(ctrl, *args, **kwargs):
     start_time = time.time()
     resp = func(ctrl, *args, **kwargs)
     if is_success(resp.status_int) or is_redirection(resp.status_int) or \
             resp.status_int == HTTP_NOT_FOUND:
         ctrl.logger.timing_since(method + '.timing', start_time)
     else:
         ctrl.logger.timing_since(method + '.errors.timing', start_time)
     return resp
Exemple #8
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 def _timing_stats(ctrl, *args, **kwargs):
     start_time = time.time()
     resp = func(ctrl, *args, **kwargs)
     if is_success(resp.status_int) or is_redirection(resp.status_int) or \
             resp.status_int == HTTP_NOT_FOUND:
         ctrl.logger.timing_since(method + '.timing', start_time)
     else:
         ctrl.logger.timing_since(method + '.errors.timing', start_time)
     return resp
Exemple #9
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    def handle_container(self, env, start_response):
        """
        Handles a possible static web request for a container.

        :param env: The original WSGI environment dict.
        :param start_response: The original WSGI start_response hook.
        """
        container_info = self._get_container_info(env)
        req = Request(env)
        req.acl = container_info['read_acl']
        # we checked earlier that swift.authorize is set in env
        aresp = env['swift.authorize'](req)
        if aresp:
            resp = aresp(env, self._start_response)
            return self._error_response(resp, env, start_response)

        if not self._listings and not self._index:
            if config_true_value(env.get('HTTP_X_WEB_MODE', 'f')):
                return HTTPNotFound()(env, start_response)
            return self.app(env, start_response)
        if not env['PATH_INFO'].endswith('/'):
            resp = HTTPMovedPermanently(
                location=(env['PATH_INFO'] + '/'))
            return resp(env, start_response)
        if not self._index:
            return self._listing(env, start_response)
        tmp_env = dict(env)
        tmp_env['HTTP_USER_AGENT'] = \
            '%s StaticWeb' % env.get('HTTP_USER_AGENT')
        tmp_env['swift.source'] = 'SW'
        tmp_env['PATH_INFO'] += self._index
        resp = self._app_call(tmp_env)
        status_int = self._get_status_int()
        if status_int == HTTP_NOT_FOUND:
            return self._listing(env, start_response)
        elif not is_success(self._get_status_int()) and \
                not is_redirection(self._get_status_int()):
            return self._error_response(resp, env, start_response)
        start_response(self._response_status, self._response_headers,
                       self._response_exc_info)
        return resp
Exemple #10
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    def handle_container(self, env, start_response):
        """
        Handles a possible static web request for a container.

        :param env: The original WSGI environment dict.
        :param start_response: The original WSGI start_response hook.
        """
        container_info = self._get_container_info(env)
        req = Request(env)
        req.acl = container_info['read_acl']
        # we checked earlier that swift.authorize is set in env
        aresp = env['swift.authorize'](req)
        if aresp:
            resp = aresp(env, self._start_response)
            return self._error_response(resp, env, start_response)

        if not self._listings and not self._index:
            if config_true_value(env.get('HTTP_X_WEB_MODE', 'f')):
                return HTTPNotFound()(env, start_response)
            return self.app(env, start_response)
        if not env['PATH_INFO'].endswith('/'):
            return self._redirect_with_slash(env, start_response)
        if not self._index:
            return self._listing(env, start_response)
        tmp_env = dict(env)
        tmp_env['HTTP_USER_AGENT'] = \
            '%s StaticWeb' % env.get('HTTP_USER_AGENT')
        tmp_env['swift.source'] = 'SW'
        tmp_env['PATH_INFO'] += self._index
        resp = self._app_call(tmp_env)
        status_int = self._get_status_int()
        if status_int == HTTP_NOT_FOUND:
            return self._listing(env, start_response)
        elif not is_success(self._get_status_int()) and \
                not is_redirection(self._get_status_int()):
            return self._error_response(resp, env, start_response)
        start_response(self._response_status, self._response_headers,
                       self._response_exc_info)
        return resp
Exemple #11
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    def handle_object(self, env, start_response):
        """
        Handles a possible static web request for an object. This object could
        resolve into an index or listing request.

        :param env: The original WSGI environment dict.
        :param start_response: The original WSGI start_response hook.
        """
        tmp_env = dict(env)
        tmp_env['HTTP_USER_AGENT'] = \
            '%s StaticWeb' % env.get('HTTP_USER_AGENT')
        tmp_env['swift.source'] = 'SW'
        resp = self._app_call(tmp_env)
        status_int = self._get_status_int()
        self._get_container_info(env)
        if is_success(status_int) or is_redirection(status_int):
            # Treat directory marker objects as not found
            if not self._dir_type:
                self._dir_type = 'application/directory'
            content_length = self._response_header_value('content-length')
            content_length = int(content_length) if content_length else 0
            if self._response_header_value('content-type') == self._dir_type \
                    and content_length <= 1:
                status_int = HTTP_NOT_FOUND
            else:
                start_response(self._response_status, self._response_headers,
                               self._response_exc_info)
                return resp
        if status_int != HTTP_NOT_FOUND:
            # Retaining the previous code's behavior of not using custom error
            # pages for non-404 errors.
            self._error = None
            return self._error_response(resp, env, start_response)
        if not self._listings and not self._index:
            start_response(self._response_status, self._response_headers,
                           self._response_exc_info)
            return resp
        status_int = HTTP_NOT_FOUND
        if self._index:
            tmp_env = dict(env)
            tmp_env['HTTP_USER_AGENT'] = \
                '%s StaticWeb' % env.get('HTTP_USER_AGENT')
            tmp_env['swift.source'] = 'SW'
            if not tmp_env['PATH_INFO'].endswith('/'):
                tmp_env['PATH_INFO'] += '/'
            tmp_env['PATH_INFO'] += self._index
            resp = self._app_call(tmp_env)
            status_int = self._get_status_int()
            if is_success(status_int) or is_redirection(status_int):
                if not env['PATH_INFO'].endswith('/'):
                    resp = HTTPMovedPermanently(location=env['PATH_INFO'] +
                                                '/')
                    return resp(env, start_response)
                start_response(self._response_status, self._response_headers,
                               self._response_exc_info)
                return resp
        if status_int == HTTP_NOT_FOUND:
            if not env['PATH_INFO'].endswith('/'):
                tmp_env = make_env(
                    env,
                    'GET',
                    '/%s/%s/%s' % (self.version, self.account, self.container),
                    self.agent,
                    swift_source='SW')
                tmp_env['QUERY_STRING'] = 'limit=1&format=json&delimiter' \
                    '=/&limit=1&prefix=%s' % quote(self.obj + '/')
                resp = self._app_call(tmp_env)
                body = ''.join(resp)
                if not is_success(self._get_status_int()) or not body or \
                        not json.loads(body):
                    resp = HTTPNotFound()(env, self._start_response)
                    return self._error_response(resp, env, start_response)
                resp = HTTPMovedPermanently(location=env['PATH_INFO'] + '/')
                return resp(env, start_response)
            return self._listing(env, start_response, self.obj)
Exemple #12
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 def is_good_source(self, src):
     """
     Indicates whether or not the request made to the backend found
     what it was looking for.
     """
     return is_success(src.status) or is_redirection(src.status)
Exemple #13
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    def GETorHEAD_base(self, req, server_type, partition, nodes, path,
                       attempts):
        """
        Base handler for HTTP GET or HEAD requests.

        :param req: webob.Request object
        :param server_type: server type
        :param partition: partition
        :param nodes: nodes
        :param path: path for the request
        :param attempts: number of attempts to try
        :returns: webob.Response object
        """
        statuses = []
        reasons = []
        bodies = []
        source = None
        sources = []
        newest = req.headers.get('x-newest', 'f').lower() in TRUE_VALUES
        nodes = iter(nodes)
        while len(statuses) < attempts:
            try:
                node = nodes.next()
            except StopIteration:
                break
            if self.error_limited(node):
                continue
            try:
                with ConnectionTimeout(self.app.conn_timeout):
                    headers = dict(req.headers)
                    headers['Connection'] = 'close'
                    conn = http_connect(node['ip'],
                                        node['port'],
                                        node['device'],
                                        partition,
                                        req.method,
                                        path,
                                        headers=headers,
                                        query_string=req.query_string)
                with Timeout(self.app.node_timeout):
                    possible_source = conn.getresponse()
                    # See NOTE: swift_conn at top of file about this.
                    possible_source.swift_conn = conn
            except (Exception, Timeout):
                self.exception_occurred(
                    node, server_type,
                    _('Trying to %(method)s %(path)s') % {
                        'method': req.method,
                        'path': req.path
                    })
                continue
            if possible_source.status == HTTP_INSUFFICIENT_STORAGE:
                self.error_limit(node)
                continue
            if is_success(possible_source.status) or \
               is_redirection(possible_source.status):
                # 404 if we know we don't have a synced copy
                if not float(possible_source.getheader('X-PUT-Timestamp', 1)):
                    statuses.append(HTTP_NOT_FOUND)
                    reasons.append('')
                    bodies.append('')
                    possible_source.read()
                    continue
                if newest:
                    if sources:
                        ts = float(
                            source.getheader('x-put-timestamp')
                            or source.getheader('x-timestamp') or 0)
                        pts = float(
                            possible_source.getheader('x-put-timestamp')
                            or possible_source.getheader('x-timestamp') or 0)
                        if pts > ts:
                            sources.insert(0, possible_source)
                        else:
                            sources.append(possible_source)
                    else:
                        sources.insert(0, possible_source)
                    source = sources[0]
                    statuses.append(source.status)
                    reasons.append(source.reason)
                    bodies.append('')
                    continue
                else:
                    source = possible_source
                    break
            statuses.append(possible_source.status)
            reasons.append(possible_source.reason)
            bodies.append(possible_source.read())
            if is_server_error(possible_source.status):
                self.error_occurred(node, _('ERROR %(status)d %(body)s ' \
                    'From %(type)s Server') %
                    {'status': possible_source.status,
                    'body': bodies[-1][:1024], 'type': server_type})
        if source:
            if req.method == 'GET' and \
               source.status in (HTTP_OK, HTTP_PARTIAL_CONTENT):
                if newest:
                    # we need to close all hanging swift_conns
                    sources.pop(0)
                    for src in sources:
                        self.close_swift_conn(src)

                res = Response(request=req, conditional_response=True)
                res.app_iter = self._make_app_iter(node, source)
                # See NOTE: swift_conn at top of file about this.
                res.swift_conn = source.swift_conn
                update_headers(res, source.getheaders())
                # Used by container sync feature
                if res.environ is None:
                    res.environ = dict()
                res.environ['swift_x_timestamp'] = \
                    source.getheader('x-timestamp')
                update_headers(res, {'accept-ranges': 'bytes'})
                res.status = source.status
                res.content_length = source.getheader('Content-Length')
                if source.getheader('Content-Type'):
                    res.charset = None
                    res.content_type = source.getheader('Content-Type')
                return res
            elif is_success(source.status) or is_redirection(source.status):
                res = status_map[source.status](request=req)
                update_headers(res, source.getheaders())
                # Used by container sync feature
                if res.environ is None:
                    res.environ = dict()
                res.environ['swift_x_timestamp'] = \
                    source.getheader('x-timestamp')
                update_headers(res, {'accept-ranges': 'bytes'})
                res.content_length = source.getheader('Content-Length')
                if source.getheader('Content-Type'):
                    res.charset = None
                    res.content_type = source.getheader('Content-Type')
                return res
        return self.best_response(req, statuses, reasons, bodies,
                                  '%s %s' % (server_type, req.method))
Exemple #14
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    def handle_object(self, env, start_response):
        """
        Handles a possible static web request for an object. This object could
        resolve into an index or listing request.

        :param env: The original WSGI environment dict.
        :param start_response: The original WSGI start_response hook.
        """
        tmp_env = dict(env)
        tmp_env['HTTP_USER_AGENT'] = \
            '%s StaticWeb' % env.get('HTTP_USER_AGENT')
        tmp_env['swift.source'] = 'SW'
        resp = self._app_call(tmp_env)
        status_int = self._get_status_int()
        self._get_container_info(env)
        if is_success(status_int) or is_redirection(status_int):
            # Treat directory marker objects as not found
            if not self._dir_type:
                self._dir_type = 'application/directory'
            content_length = self._response_header_value('content-length')
            content_length = int(content_length) if content_length else 0
            if self._response_header_value('content-type') == self._dir_type \
                    and content_length <= 1:
                status_int = HTTP_NOT_FOUND
            else:
                start_response(self._response_status, self._response_headers,
                               self._response_exc_info)
                return resp
        if status_int != HTTP_NOT_FOUND:
            # Retaining the previous code's behavior of not using custom error
            # pages for non-404 errors.
            self._error = None
            return self._error_response(resp, env, start_response)
        if not self._listings and not self._index:
            return self.app(env, start_response)
        status_int = HTTP_NOT_FOUND
        if self._index:
            tmp_env = dict(env)
            tmp_env['HTTP_USER_AGENT'] = \
                '%s StaticWeb' % env.get('HTTP_USER_AGENT')
            tmp_env['swift.source'] = 'SW'
            if tmp_env['PATH_INFO'][-1] != '/':
                tmp_env['PATH_INFO'] += '/'
            tmp_env['PATH_INFO'] += self._index
            resp = self._app_call(tmp_env)
            status_int = self._get_status_int()
            if is_success(status_int) or is_redirection(status_int):
                if env['PATH_INFO'][-1] != '/':
                    resp = HTTPMovedPermanently(
                        location=env['PATH_INFO'] + '/')
                    return resp(env, start_response)
                start_response(self._response_status, self._response_headers,
                               self._response_exc_info)
                return resp
        if status_int == HTTP_NOT_FOUND:
            if env['PATH_INFO'][-1] != '/':
                tmp_env = make_pre_authed_env(
                    env, 'GET', '/%s/%s/%s' % (
                        self.version, self.account, self.container),
                    self.agent, swift_source='SW')
                tmp_env['QUERY_STRING'] = 'limit=1&format=json&delimiter' \
                    '=/&limit=1&prefix=%s' % quote(self.obj + '/')
                resp = self._app_call(tmp_env)
                body = ''.join(resp)
                if not is_success(self._get_status_int()) or not body or \
                        not json.loads(body):
                    resp = HTTPNotFound()(env, self._start_response)
                    return self._error_response(resp, env, start_response)
                resp = HTTPMovedPermanently(location=env['PATH_INFO'] + '/')
                return resp(env, start_response)
            return self._listing(env, start_response, self.obj)
Exemple #15
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    def handle_object(self, env, start_response):
        """
        Handles a possible static web request for an object. This object could
        resolve into an index or listing request.

        :param env: The original WSGI environment dict.
        :param start_response: The original WSGI start_response hook.
        """
        tmp_env = dict(env)
        tmp_env["HTTP_USER_AGENT"] = "%s StaticWeb" % env.get("HTTP_USER_AGENT")
        tmp_env["swift.source"] = "SW"
        resp = self._app_call(tmp_env)
        status_int = self._get_status_int()
        self._get_container_info(env)
        if is_success(status_int) or is_redirection(status_int):
            # Treat directory marker objects as not found
            if not self._dir_type:
                self._dir_type = "application/directory"
            content_length = self._response_header_value("content-length")
            content_length = int(content_length) if content_length else 0
            if self._response_header_value("content-type") == self._dir_type and content_length <= 1:
                status_int = HTTP_NOT_FOUND
            else:
                start_response(self._response_status, self._response_headers, self._response_exc_info)
                return resp
        if status_int != HTTP_NOT_FOUND:
            # Retaining the previous code's behavior of not using custom error
            # pages for non-404 errors.
            self._error = None
            return self._error_response(resp, env, start_response)
        if not self._listings and not self._index:
            return self.app(env, start_response)
        status_int = HTTP_NOT_FOUND
        if self._index:
            tmp_env = dict(env)
            tmp_env["HTTP_USER_AGENT"] = "%s StaticWeb" % env.get("HTTP_USER_AGENT")
            tmp_env["swift.source"] = "SW"
            if tmp_env["PATH_INFO"][-1] != "/":
                tmp_env["PATH_INFO"] += "/"
            tmp_env["PATH_INFO"] += self._index
            resp = self._app_call(tmp_env)
            status_int = self._get_status_int()
            if is_success(status_int) or is_redirection(status_int):
                if env["PATH_INFO"][-1] != "/":
                    resp = HTTPMovedPermanently(location=env["PATH_INFO"] + "/")
                    return resp(env, start_response)
                start_response(self._response_status, self._response_headers, self._response_exc_info)
                return resp
        if status_int == HTTP_NOT_FOUND:
            if env["PATH_INFO"][-1] != "/":
                tmp_env = make_pre_authed_env(
                    env,
                    "GET",
                    "/%s/%s/%s" % (self.version, self.account, self.container),
                    self.agent,
                    swift_source="SW",
                )
                tmp_env["QUERY_STRING"] = "limit=1&format=json&delimiter" "=/&limit=1&prefix=%s" % quote(self.obj + "/")
                resp = self._app_call(tmp_env)
                body = "".join(resp)
                if not is_success(self._get_status_int()) or not body or not json.loads(body):
                    resp = HTTPNotFound()(env, self._start_response)
                    return self._error_response(resp, env, start_response)
                resp = HTTPMovedPermanently(location=env["PATH_INFO"] + "/")
                return resp(env, start_response)
            return self._listing(env, start_response, self.obj)
Exemple #16
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 def is_good_source(self, src):
     """
     Indicates whether or not the request made to the backend found
     what it was looking for.
     """
     return is_success(src.status) or is_redirection(src.status)
Exemple #17
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    def GETorHEAD_base(self, req, server_type, partition, nodes, path,
                       attempts):
        """
        Base handler for HTTP GET or HEAD requests.

        :param req: webob.Request object
        :param server_type: server type
        :param partition: partition
        :param nodes: nodes
        :param path: path for the request
        :param attempts: number of attempts to try
        :returns: webob.Response object
        """
        statuses = []
        reasons = []
        bodies = []
        source = None
        sources = []
        newest = req.headers.get('x-newest', 'f').lower() in TRUE_VALUES
        nodes = iter(nodes)
        while len(statuses) < attempts:
            try:
                node = nodes.next()
            except StopIteration:
                break
            if self.error_limited(node):
                continue
            try:
                with ConnectionTimeout(self.app.conn_timeout):
                    headers = dict(req.headers)
                    headers['Connection'] = 'close'
                    conn = http_connect(node['ip'], node['port'],
                        node['device'], partition, req.method, path,
                        headers=headers,
                        query_string=req.query_string)
                with Timeout(self.app.node_timeout):
                    possible_source = conn.getresponse()
                    # See NOTE: swift_conn at top of file about this.
                    possible_source.swift_conn = conn
            except (Exception, Timeout):
                self.exception_occurred(node, server_type,
                    _('Trying to %(method)s %(path)s') %
                    {'method': req.method, 'path': req.path})
                continue
            if possible_source.status == HTTP_INSUFFICIENT_STORAGE:
                self.error_limit(node)
                continue
            if is_success(possible_source.status) or \
               is_redirection(possible_source.status):
                # 404 if we know we don't have a synced copy
                if not float(possible_source.getheader('X-PUT-Timestamp', 1)):
                    statuses.append(HTTP_NOT_FOUND)
                    reasons.append('')
                    bodies.append('')
                    possible_source.read()
                    continue
                if newest:
                    if sources:
                        ts = float(source.getheader('x-put-timestamp') or
                                   source.getheader('x-timestamp') or 0)
                        pts = float(
                            possible_source.getheader('x-put-timestamp') or
                            possible_source.getheader('x-timestamp') or 0)
                        if pts > ts:
                            sources.insert(0, possible_source)
                        else:
                            sources.append(possible_source)
                    else:
                        sources.insert(0, possible_source)
                    source = sources[0]
                    statuses.append(source.status)
                    reasons.append(source.reason)
                    bodies.append('')
                    continue
                else:
                    source = possible_source
                    break
            statuses.append(possible_source.status)
            reasons.append(possible_source.reason)
            bodies.append(possible_source.read())
            if is_server_error(possible_source.status):
                self.error_occurred(node, _('ERROR %(status)d %(body)s ' \
                    'From %(type)s Server') %
                    {'status': possible_source.status,
                    'body': bodies[-1][:1024], 'type': server_type})
        if source:
            if req.method == 'GET' and \
               source.status in (HTTP_OK, HTTP_PARTIAL_CONTENT):
                if newest:
                    # we need to close all hanging swift_conns
                    sources.pop(0)
                    for src in sources:
                        self.close_swift_conn(src)

                res = Response(request=req, conditional_response=True)
                res.app_iter = self._make_app_iter(node, source, res)
                # See NOTE: swift_conn at top of file about this.
                res.swift_conn = source.swift_conn
                update_headers(res, source.getheaders())
                # Used by container sync feature
                if res.environ is None:
                    res.environ = dict()
                res.environ['swift_x_timestamp'] = \
                    source.getheader('x-timestamp')
                update_headers(res, {'accept-ranges': 'bytes'})
                res.status = source.status
                res.content_length = source.getheader('Content-Length')
                if source.getheader('Content-Type'):
                    res.charset = None
                    res.content_type = source.getheader('Content-Type')
                return res
            elif is_success(source.status) or is_redirection(source.status):
                res = status_map[source.status](request=req)
                update_headers(res, source.getheaders())
                # Used by container sync feature
                if res.environ is None:
                    res.environ = dict()
                res.environ['swift_x_timestamp'] = \
                    source.getheader('x-timestamp')
                update_headers(res, {'accept-ranges': 'bytes'})
                res.content_length = source.getheader('Content-Length')
                if source.getheader('Content-Type'):
                    res.charset = None
                    res.content_type = source.getheader('Content-Type')
                return res
        return self.best_response(req, statuses, reasons, bodies,
                                  '%s %s' % (server_type, req.method))
Exemple #18
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    def GETorHEAD_base(self, req, server_type, partition, nodes, path, attempts):
        """
        Base handler for HTTP GET or HEAD requests.

        :param req: swob.Request object
        :param server_type: server type
        :param partition: partition
        :param nodes: nodes
        :param path: path for the request
        :param attempts: number of attempts to try
        :returns: swob.Response object
        """
        statuses = []
        reasons = []
        bodies = []
        sources = []
        newest = req.headers.get("x-newest", "f").lower() in TRUE_VALUES
        nodes = iter(nodes)
        while len(statuses) < attempts:
            try:
                node = nodes.next()
            except StopIteration:
                break
            if self.error_limited(node):
                continue
            try:
                with ConnectionTimeout(self.app.conn_timeout):
                    headers = dict(req.headers)
                    headers["Connection"] = "close"
                    conn = http_connect(
                        node["ip"],
                        node["port"],
                        node["device"],
                        partition,
                        req.method,
                        path,
                        headers=headers,
                        query_string=req.query_string,
                    )
                with Timeout(self.app.node_timeout):
                    possible_source = conn.getresponse()
                    # See NOTE: swift_conn at top of file about this.
                    possible_source.swift_conn = conn
            except (Exception, Timeout):
                self.exception_occurred(
                    node, server_type, _("Trying to %(method)s %(path)s") % {"method": req.method, "path": req.path}
                )
                continue
            if is_success(possible_source.status) or is_redirection(possible_source.status):
                # 404 if we know we don't have a synced copy
                if not float(possible_source.getheader("X-PUT-Timestamp", 1)):
                    statuses.append(HTTP_NOT_FOUND)
                    reasons.append("")
                    bodies.append("")
                    self.close_swift_conn(possible_source)
                else:
                    statuses.append(possible_source.status)
                    reasons.append(possible_source.reason)
                    bodies.append("")
                    sources.append(possible_source)
                    if not newest:  # one good source is enough
                        break
            else:
                statuses.append(possible_source.status)
                reasons.append(possible_source.reason)
                bodies.append(possible_source.read())
                if possible_source.status == HTTP_INSUFFICIENT_STORAGE:
                    self.error_limit(node)
                elif is_server_error(possible_source.status):
                    self.error_occurred(
                        node,
                        _("ERROR %(status)d %(body)s " "From %(type)s Server")
                        % {"status": possible_source.status, "body": bodies[-1][:1024], "type": server_type},
                    )
        if sources:
            sources.sort(key=source_key)
            source = sources.pop()
            for src in sources:
                self.close_swift_conn(src)
            res = Response(request=req, conditional_response=True)
            if req.method == "GET" and source.status in (HTTP_OK, HTTP_PARTIAL_CONTENT):
                res.app_iter = self._make_app_iter(node, source)
                # See NOTE: swift_conn at top of file about this.
                res.swift_conn = source.swift_conn
            res.status = source.status
            update_headers(res, source.getheaders())
            if not res.environ:
                res.environ = {}
            res.environ["swift_x_timestamp"] = source.getheader("x-timestamp")
            res.accept_ranges = "bytes"
            res.content_length = source.getheader("Content-Length")
            if source.getheader("Content-Type"):
                res.charset = None
                res.content_type = source.getheader("Content-Type")
            return res
        return self.best_response(req, statuses, reasons, bodies, "%s %s" % (server_type, req.method))