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@ -52,6 +52,7 @@ request. |
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from __future__ import absolute_import, division, print_function, with_statement |
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from __future__ import absolute_import, division, print_function, with_statement |
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import base64 |
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import base64 |
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import binascii |
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import binascii |
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import datetime |
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import datetime |
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@ -131,14 +132,14 @@ class RequestHandler(object): |
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self.path_kwargs = None |
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self.path_kwargs = None |
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self.ui = ObjectDict((n, self._ui_method(m)) for n, m in |
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self.ui = ObjectDict((n, self._ui_method(m)) for n, m in |
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application.ui_methods.items()) |
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application.ui_methods.items()) |
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# UIModules are available as both `modules` and `_modules` in the |
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# UIModules are available as both `modules` and `_tt_modules` in the |
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# template namespace. Historically only `modules` was available |
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# template namespace. Historically only `modules` was available |
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# but could be clobbered by user additions to the namespace. |
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# but could be clobbered by user additions to the namespace. |
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# The template {% module %} directive looks in `_modules` to avoid |
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# The template {% module %} directive looks in `_tt_modules` to avoid |
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# possible conflicts. |
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# possible conflicts. |
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self.ui["_modules"] = ObjectDict((n, self._ui_module(n, m)) for n, m in |
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self.ui["_tt_modules"] = _UIModuleNamespace(self, |
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application.ui_modules.items()) |
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application.ui_modules) |
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self.ui["modules"] = self.ui["_modules"] |
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self.ui["modules"] = self.ui["_tt_modules"] |
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self.clear() |
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self.clear() |
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# Check since connection is not available in WSGI |
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# Check since connection is not available in WSGI |
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if getattr(self.request, "connection", None): |
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if getattr(self.request, "connection", None): |
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@ -198,6 +199,15 @@ class RequestHandler(object): |
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Override this method to perform common initialization regardless |
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Override this method to perform common initialization regardless |
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of the request method. |
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of the request method. |
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Asynchronous support: Decorate this method with `.gen.coroutine` |
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or `.return_future` to make it asynchronous (the |
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`asynchronous` decorator cannot be used on `prepare`). |
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If this method returns a `.Future` execution will not proceed |
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until the `.Future` is done. |
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.. versionadded:: 3.1 |
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Asynchronous support. |
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""" |
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""" |
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pass |
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pass |
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@ -232,11 +242,14 @@ class RequestHandler(object): |
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self._headers = httputil.HTTPHeaders({ |
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self._headers = httputil.HTTPHeaders({ |
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"Server": "TornadoServer/%s" % tornado.version, |
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"Server": "TornadoServer/%s" % tornado.version, |
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"Content-Type": "text/html; charset=UTF-8", |
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"Content-Type": "text/html; charset=UTF-8", |
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"Date": httputil.format_timestamp(time.gmtime()), |
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"Date": httputil.format_timestamp(time.time()), |
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}) |
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}) |
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self.set_default_headers() |
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self.set_default_headers() |
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if not self.request.supports_http_1_1(): |
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if (not self.request.supports_http_1_1() and |
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if self.request.headers.get("Connection") == "Keep-Alive": |
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getattr(self.request, 'connection', None) and |
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not self.request.connection.no_keep_alive): |
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conn_header = self.request.headers.get("Connection") |
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if conn_header and (conn_header.lower() == "keep-alive"): |
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self.set_header("Connection", "Keep-Alive") |
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self.set_header("Connection", "Keep-Alive") |
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self._write_buffer = [] |
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self._write_buffer = [] |
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self._status_code = 200 |
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self._status_code = 200 |
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@ -300,6 +313,8 @@ class RequestHandler(object): |
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if name in self._headers: |
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if name in self._headers: |
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del self._headers[name] |
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del self._headers[name] |
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_INVALID_HEADER_CHAR_RE = re.compile(br"[\x00-\x1f]") |
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def _convert_header_value(self, value): |
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def _convert_header_value(self, value): |
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if isinstance(value, bytes_type): |
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if isinstance(value, bytes_type): |
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pass |
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pass |
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@ -315,7 +330,8 @@ class RequestHandler(object): |
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# If \n is allowed into the header, it is possible to inject |
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# If \n is allowed into the header, it is possible to inject |
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# additional headers or split the request. Also cap length to |
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# additional headers or split the request. Also cap length to |
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# prevent obviously erroneous values. |
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# prevent obviously erroneous values. |
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if len(value) > 4000 or re.search(br"[\x00-\x1f]", value): |
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if (len(value) > 4000 or |
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RequestHandler._INVALID_HEADER_CHAR_RE.search(value)): |
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raise ValueError("Unsafe header value %r", value) |
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raise ValueError("Unsafe header value %r", value) |
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return value |
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return value |
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@ -325,7 +341,7 @@ class RequestHandler(object): |
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"""Returns the value of the argument with the given name. |
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"""Returns the value of the argument with the given name. |
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If default is not provided, the argument is considered to be |
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If default is not provided, the argument is considered to be |
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required, and we throw an HTTP 400 exception if it is missing. |
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required, and we raise a `MissingArgumentError` if it is missing. |
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If the argument appears in the url more than once, we return the |
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If the argument appears in the url more than once, we return the |
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last value. |
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last value. |
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@ -335,7 +351,7 @@ class RequestHandler(object): |
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args = self.get_arguments(name, strip=strip) |
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args = self.get_arguments(name, strip=strip) |
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if not args: |
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if not args: |
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if default is self._ARG_DEFAULT: |
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if default is self._ARG_DEFAULT: |
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raise HTTPError(400, "Missing argument %s" % name) |
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raise MissingArgumentError(name) |
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return default |
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return default |
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return args[-1] |
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return args[-1] |
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@ -488,10 +504,8 @@ class RequestHandler(object): |
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else: |
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else: |
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assert isinstance(status, int) and 300 <= status <= 399 |
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assert isinstance(status, int) and 300 <= status <= 399 |
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self.set_status(status) |
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self.set_status(status) |
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# Remove whitespace |
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url = re.sub(br"[\x00-\x20]+", "", utf8(url)) |
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self.set_header("Location", urlparse.urljoin(utf8(self.request.uri), |
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self.set_header("Location", urlparse.urljoin(utf8(self.request.uri), |
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url)) |
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utf8(url))) |
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self.finish() |
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self.finish() |
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def write(self, chunk): |
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def write(self, chunk): |
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@ -680,7 +694,11 @@ class RequestHandler(object): |
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has been run, the previous callback will be discarded. |
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has been run, the previous callback will be discarded. |
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""" |
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""" |
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if self.application._wsgi: |
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if self.application._wsgi: |
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raise Exception("WSGI applications do not support flush()") |
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# WSGI applications cannot usefully support flush, so just make |
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# it a no-op (and run the callback immediately). |
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if callback is not None: |
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callback() |
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return |
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chunk = b"".join(self._write_buffer) |
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chunk = b"".join(self._write_buffer) |
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self._write_buffer = [] |
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self._write_buffer = [] |
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@ -720,13 +738,10 @@ class RequestHandler(object): |
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if (self._status_code == 200 and |
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if (self._status_code == 200 and |
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self.request.method in ("GET", "HEAD") and |
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self.request.method in ("GET", "HEAD") and |
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"Etag" not in self._headers): |
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"Etag" not in self._headers): |
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etag = self.compute_etag() |
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self.set_etag_header() |
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if etag is not None: |
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if self.check_etag_header(): |
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self.set_header("Etag", etag) |
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self._write_buffer = [] |
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inm = self.request.headers.get("If-None-Match") |
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self.set_status(304) |
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if inm and inm.find(etag) != -1: |
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self._write_buffer = [] |
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self.set_status(304) |
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if self._status_code == 304: |
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if self._status_code == 304: |
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assert not self._write_buffer, "Cannot send body with 304" |
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assert not self._write_buffer, "Cannot send body with 304" |
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self._clear_headers_for_304() |
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self._clear_headers_for_304() |
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@ -891,6 +906,10 @@ class RequestHandler(object): |
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self._current_user = self.get_current_user() |
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self._current_user = self.get_current_user() |
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return self._current_user |
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return self._current_user |
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@current_user.setter |
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def current_user(self, value): |
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self._current_user = value |
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def get_current_user(self): |
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def get_current_user(self): |
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"""Override to determine the current user from, e.g., a cookie.""" |
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"""Override to determine the current user from, e.g., a cookie.""" |
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return None |
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return None |
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@ -976,27 +995,30 @@ class RequestHandler(object): |
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return '<input type="hidden" name="_xsrf" value="' + \ |
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return '<input type="hidden" name="_xsrf" value="' + \ |
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escape.xhtml_escape(self.xsrf_token) + '"/>' |
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escape.xhtml_escape(self.xsrf_token) + '"/>' |
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def static_url(self, path, include_host=None): |
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def static_url(self, path, include_host=None, **kwargs): |
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"""Returns a static URL for the given relative static file path. |
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"""Returns a static URL for the given relative static file path. |
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This method requires you set the ``static_path`` setting in your |
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This method requires you set the ``static_path`` setting in your |
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application (which specifies the root directory of your static |
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application (which specifies the root directory of your static |
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files). |
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files). |
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We append ``?v=<signature>`` to the returned URL, which makes our |
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This method returns a versioned url (by default appending |
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static file handler set an infinite expiration header on the |
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``?v=<signature>``), which allows the static files to be |
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returned content. The signature is based on the content of the |
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cached indefinitely. This can be disabled by passing |
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file. |
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``include_version=False`` (in the default implementation; |
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other static file implementations are not required to support |
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this, but they may support other options). |
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By default this method returns URLs relative to the current |
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By default this method returns URLs relative to the current |
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host, but if ``include_host`` is true the URL returned will be |
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host, but if ``include_host`` is true the URL returned will be |
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absolute. If this handler has an ``include_host`` attribute, |
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absolute. If this handler has an ``include_host`` attribute, |
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that value will be used as the default for all `static_url` |
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that value will be used as the default for all `static_url` |
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calls that do not pass ``include_host`` as a keyword argument. |
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calls that do not pass ``include_host`` as a keyword argument. |
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""" |
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""" |
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self.require_setting("static_path", "static_url") |
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self.require_setting("static_path", "static_url") |
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static_handler_class = self.settings.get( |
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get_url = self.settings.get("static_handler_class", |
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"static_handler_class", StaticFileHandler) |
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StaticFileHandler).make_static_url |
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if include_host is None: |
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if include_host is None: |
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include_host = getattr(self, "include_host", False) |
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include_host = getattr(self, "include_host", False) |
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@ -1005,7 +1027,8 @@ class RequestHandler(object): |
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base = self.request.protocol + "://" + self.request.host |
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base = self.request.protocol + "://" + self.request.host |
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else: |
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else: |
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base = "" |
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base = "" |
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return base + static_handler_class.make_static_url(self.settings, path) |
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return base + get_url(self.settings, path, **kwargs) |
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def async_callback(self, callback, *args, **kwargs): |
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def async_callback(self, callback, *args, **kwargs): |
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"""Obsolete - catches exceptions from the wrapped function. |
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"""Obsolete - catches exceptions from the wrapped function. |
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@ -1041,6 +1064,8 @@ class RequestHandler(object): |
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def compute_etag(self): |
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def compute_etag(self): |
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"""Computes the etag header to be used for this request. |
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"""Computes the etag header to be used for this request. |
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By default uses a hash of the content written so far. |
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May be overridden to provide custom etag implementations, |
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May be overridden to provide custom etag implementations, |
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or may return None to disable tornado's default etag support. |
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or may return None to disable tornado's default etag support. |
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""" |
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""" |
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@ -1049,6 +1074,38 @@ class RequestHandler(object): |
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hasher.update(part) |
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hasher.update(part) |
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return '"%s"' % hasher.hexdigest() |
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return '"%s"' % hasher.hexdigest() |
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def set_etag_header(self): |
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"""Sets the response's Etag header using ``self.compute_etag()``. |
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Note: no header will be set if ``compute_etag()`` returns ``None``. |
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This method is called automatically when the request is finished. |
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""" |
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etag = self.compute_etag() |
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if etag is not None: |
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self.set_header("Etag", etag) |
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def check_etag_header(self): |
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"""Checks the ``Etag`` header against requests's ``If-None-Match``. |
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Returns ``True`` if the request's Etag matches and a 304 should be |
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returned. For example:: |
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self.set_etag_header() |
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if self.check_etag_header(): |
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self.set_status(304) |
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return |
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This method is called automatically when the request is finished, |
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but may be called earlier for applications that override |
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`compute_etag` and want to do an early check for ``If-None-Match`` |
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before completing the request. The ``Etag`` header should be set |
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(perhaps with `set_etag_header`) before calling this method. |
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""" |
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etag = self._headers.get("Etag") |
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inm = utf8(self.request.headers.get("If-None-Match", "")) |
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return bool(etag and inm and inm.find(etag) >= 0) |
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def _stack_context_handle_exception(self, type, value, traceback): |
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def _stack_context_handle_exception(self, type, value, traceback): |
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try: |
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try: |
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# For historical reasons _handle_request_exception only takes |
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# For historical reasons _handle_request_exception only takes |
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@ -1074,15 +1131,41 @@ class RequestHandler(object): |
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if self.request.method not in ("GET", "HEAD", "OPTIONS") and \ |
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if self.request.method not in ("GET", "HEAD", "OPTIONS") and \ |
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self.application.settings.get("xsrf_cookies"): |
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self.application.settings.get("xsrf_cookies"): |
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self.check_xsrf_cookie() |
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self.check_xsrf_cookie() |
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self.prepare() |
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self._when_complete(self.prepare(), self._execute_method) |
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if not self._finished: |
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getattr(self, self.request.method.lower())( |
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*self.path_args, **self.path_kwargs) |
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if self._auto_finish and not self._finished: |
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self.finish() |
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except Exception as e: |
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except Exception as e: |
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self._handle_request_exception(e) |
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self._handle_request_exception(e) |
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def _when_complete(self, result, callback): |
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try: |
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if result is None: |
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callback() |
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elif isinstance(result, Future): |
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if result.done(): |
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if result.result() is not None: |
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raise ValueError('Expected None, got %r' % result) |
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callback() |
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else: |
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# Delayed import of IOLoop because it's not available |
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# on app engine |
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from tornado.ioloop import IOLoop |
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IOLoop.current().add_future( |
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result, functools.partial(self._when_complete, |
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callback=callback)) |
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else: |
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raise ValueError("Expected Future or None, got %r" % result) |
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except Exception as e: |
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self._handle_request_exception(e) |
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|
|
|
|
|
|
def _execute_method(self): |
|
|
|
|
|
if not self._finished: |
|
|
|
|
|
method = getattr(self, self.request.method.lower()) |
|
|
|
|
|
self._when_complete(method(*self.path_args, **self.path_kwargs), |
|
|
|
|
|
self._execute_finish) |
|
|
|
|
|
|
|
|
|
|
|
def _execute_finish(self): |
|
|
|
|
|
if self._auto_finish and not self._finished: |
|
|
|
|
|
self.finish() |
|
|
|
|
|
|
|
|
def _generate_headers(self): |
|
|
def _generate_headers(self): |
|
|
reason = self._reason |
|
|
reason = self._reason |
|
|
lines = [utf8(self.request.version + " " + |
|
|
lines = [utf8(self.request.version + " " + |
|
|
@ -1109,21 +1192,41 @@ class RequestHandler(object): |
|
|
" (" + self.request.remote_ip + ")" |
|
|
" (" + self.request.remote_ip + ")" |
|
|
|
|
|
|
|
|
def _handle_request_exception(self, e): |
|
|
def _handle_request_exception(self, e): |
|
|
|
|
|
self.log_exception(*sys.exc_info()) |
|
|
|
|
|
if self._finished: |
|
|
|
|
|
# Extra errors after the request has been finished should |
|
|
|
|
|
# be logged, but there is no reason to continue to try and |
|
|
|
|
|
# send a response. |
|
|
|
|
|
return |
|
|
if isinstance(e, HTTPError): |
|
|
if isinstance(e, HTTPError): |
|
|
if e.log_message: |
|
|
|
|
|
format = "%d %s: " + e.log_message |
|
|
|
|
|
args = [e.status_code, self._request_summary()] + list(e.args) |
|
|
|
|
|
gen_log.warning(format, *args) |
|
|
|
|
|
if e.status_code not in httputil.responses and not e.reason: |
|
|
if e.status_code not in httputil.responses and not e.reason: |
|
|
gen_log.error("Bad HTTP status code: %d", e.status_code) |
|
|
gen_log.error("Bad HTTP status code: %d", e.status_code) |
|
|
self.send_error(500, exc_info=sys.exc_info()) |
|
|
self.send_error(500, exc_info=sys.exc_info()) |
|
|
else: |
|
|
else: |
|
|
self.send_error(e.status_code, exc_info=sys.exc_info()) |
|
|
self.send_error(e.status_code, exc_info=sys.exc_info()) |
|
|
else: |
|
|
else: |
|
|
app_log.error("Uncaught exception %s\n%r", self._request_summary(), |
|
|
|
|
|
self.request, exc_info=True) |
|
|
|
|
|
self.send_error(500, exc_info=sys.exc_info()) |
|
|
self.send_error(500, exc_info=sys.exc_info()) |
|
|
|
|
|
|
|
|
|
|
|
def log_exception(self, typ, value, tb): |
|
|
|
|
|
"""Override to customize logging of uncaught exceptions. |
|
|
|
|
|
|
|
|
|
|
|
By default logs instances of `HTTPError` as warnings without |
|
|
|
|
|
stack traces (on the ``tornado.general`` logger), and all |
|
|
|
|
|
other exceptions as errors with stack traces (on the |
|
|
|
|
|
``tornado.application`` logger). |
|
|
|
|
|
|
|
|
|
|
|
.. versionadded:: 3.1 |
|
|
|
|
|
""" |
|
|
|
|
|
if isinstance(value, HTTPError): |
|
|
|
|
|
if value.log_message: |
|
|
|
|
|
format = "%d %s: " + value.log_message |
|
|
|
|
|
args = ([value.status_code, self._request_summary()] + |
|
|
|
|
|
list(value.args)) |
|
|
|
|
|
gen_log.warning(format, *args) |
|
|
|
|
|
else: |
|
|
|
|
|
app_log.error("Uncaught exception %s\n%r", self._request_summary(), |
|
|
|
|
|
self.request, exc_info=(typ, value, tb)) |
|
|
|
|
|
|
|
|
def _ui_module(self, name, module): |
|
|
def _ui_module(self, name, module): |
|
|
def render(*args, **kwargs): |
|
|
def render(*args, **kwargs): |
|
|
if not hasattr(self, "_active_modules"): |
|
|
if not hasattr(self, "_active_modules"): |
|
|
@ -1152,6 +1255,11 @@ class RequestHandler(object): |
|
|
def asynchronous(method): |
|
|
def asynchronous(method): |
|
|
"""Wrap request handler methods with this if they are asynchronous. |
|
|
"""Wrap request handler methods with this if they are asynchronous. |
|
|
|
|
|
|
|
|
|
|
|
This decorator is unnecessary if the method is also decorated with |
|
|
|
|
|
``@gen.coroutine`` (it is legal but unnecessary to use the two |
|
|
|
|
|
decorators together, in which case ``@asynchronous`` must be |
|
|
|
|
|
first). |
|
|
|
|
|
|
|
|
This decorator should only be applied to the :ref:`HTTP verb |
|
|
This decorator should only be applied to the :ref:`HTTP verb |
|
|
methods <verbs>`; its behavior is undefined for any other method. |
|
|
methods <verbs>`; its behavior is undefined for any other method. |
|
|
This decorator does not *make* a method asynchronous; it tells |
|
|
This decorator does not *make* a method asynchronous; it tells |
|
|
@ -1175,6 +1283,8 @@ def asynchronous(method): |
|
|
self.write("Downloaded!") |
|
|
self.write("Downloaded!") |
|
|
self.finish() |
|
|
self.finish() |
|
|
|
|
|
|
|
|
|
|
|
.. versionadded:: 3.1 |
|
|
|
|
|
The ability to use ``@gen.coroutine`` without ``@asynchronous``. |
|
|
""" |
|
|
""" |
|
|
# Delay the IOLoop import because it's not available on app engine. |
|
|
# Delay the IOLoop import because it's not available on app engine. |
|
|
from tornado.ioloop import IOLoop |
|
|
from tornado.ioloop import IOLoop |
|
|
@ -1461,7 +1571,8 @@ class Application(object): |
|
|
def unquote(s): |
|
|
def unquote(s): |
|
|
if s is None: |
|
|
if s is None: |
|
|
return s |
|
|
return s |
|
|
return escape.url_unescape(s, encoding=None) |
|
|
return escape.url_unescape(s, encoding=None, |
|
|
|
|
|
plus=False) |
|
|
# Pass matched groups to the handler. Since |
|
|
# Pass matched groups to the handler. Since |
|
|
# match.groups() includes both named and unnamed groups, |
|
|
# match.groups() includes both named and unnamed groups, |
|
|
# we want to use either groups or groupdict but not both. |
|
|
# we want to use either groups or groupdict but not both. |
|
|
@ -1559,6 +1670,20 @@ class HTTPError(Exception): |
|
|
return message |
|
|
return message |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
class MissingArgumentError(HTTPError): |
|
|
|
|
|
"""Exception raised by `RequestHandler.get_argument`. |
|
|
|
|
|
|
|
|
|
|
|
This is a subclass of `HTTPError`, so if it is uncaught a 400 response |
|
|
|
|
|
code will be used instead of 500 (and a stack trace will not be logged). |
|
|
|
|
|
|
|
|
|
|
|
.. versionadded:: 3.1 |
|
|
|
|
|
""" |
|
|
|
|
|
def __init__(self, arg_name): |
|
|
|
|
|
super(MissingArgumentError, self).__init__( |
|
|
|
|
|
400, 'Missing argument %s' % arg_name) |
|
|
|
|
|
self.arg_name = arg_name |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
class ErrorHandler(RequestHandler): |
|
|
class ErrorHandler(RequestHandler): |
|
|
"""Generates an error response with ``status_code`` for all requests.""" |
|
|
"""Generates an error response with ``status_code`` for all requests.""" |
|
|
def initialize(self, status_code): |
|
|
def initialize(self, status_code): |
|
|
@ -1594,21 +1719,59 @@ class RedirectHandler(RequestHandler): |
|
|
class StaticFileHandler(RequestHandler): |
|
|
class StaticFileHandler(RequestHandler): |
|
|
"""A simple handler that can serve static content from a directory. |
|
|
"""A simple handler that can serve static content from a directory. |
|
|
|
|
|
|
|
|
To map a path to this handler for a static data directory ``/var/www``, |
|
|
A `StaticFileHandler` is configured automatically if you pass the |
|
|
|
|
|
``static_path`` keyword argument to `Application`. This handler |
|
|
|
|
|
can be customized with the ``static_url_prefix``, ``static_handler_class``, |
|
|
|
|
|
and ``static_handler_args`` settings. |
|
|
|
|
|
|
|
|
|
|
|
To map an additional path to this handler for a static data directory |
|
|
you would add a line to your application like:: |
|
|
you would add a line to your application like:: |
|
|
|
|
|
|
|
|
application = web.Application([ |
|
|
application = web.Application([ |
|
|
(r"/static/(.*)", web.StaticFileHandler, {"path": "/var/www"}), |
|
|
(r"/content/(.*)", web.StaticFileHandler, {"path": "/var/www"}), |
|
|
]) |
|
|
]) |
|
|
|
|
|
|
|
|
The local root directory of the content should be passed as the ``path`` |
|
|
The handler constructor requires a ``path`` argument, which specifies the |
|
|
argument to the handler. |
|
|
local root directory of the content to be served. |
|
|
|
|
|
|
|
|
To support aggressive browser caching, if the argument ``v`` is given |
|
|
Note that a capture group in the regex is required to parse the value for |
|
|
with the path, we set an infinite HTTP expiration header. So, if you |
|
|
the ``path`` argument to the get() method (different than the constructor |
|
|
want browsers to cache a file indefinitely, send them to, e.g., |
|
|
argument above); see `URLSpec` for details. |
|
|
``/static/images/myimage.png?v=xxx``. Override `get_cache_time` method for |
|
|
|
|
|
more fine-grained cache control. |
|
|
To maximize the effectiveness of browser caching, this class supports |
|
|
|
|
|
versioned urls (by default using the argument ``?v=``). If a version |
|
|
|
|
|
is given, we instruct the browser to cache this file indefinitely. |
|
|
|
|
|
`make_static_url` (also available as `RequestHandler.static_url`) can |
|
|
|
|
|
be used to construct a versioned url. |
|
|
|
|
|
|
|
|
|
|
|
This handler is intended primarily for use in development and light-duty |
|
|
|
|
|
file serving; for heavy traffic it will be more efficient to use |
|
|
|
|
|
a dedicated static file server (such as nginx or Apache). We support |
|
|
|
|
|
the HTTP ``Accept-Ranges`` mechanism to return partial content (because |
|
|
|
|
|
some browsers require this functionality to be present to seek in |
|
|
|
|
|
HTML5 audio or video), but this handler should not be used with |
|
|
|
|
|
files that are too large to fit comfortably in memory. |
|
|
|
|
|
|
|
|
|
|
|
**Subclassing notes** |
|
|
|
|
|
|
|
|
|
|
|
This class is designed to be extensible by subclassing, but because |
|
|
|
|
|
of the way static urls are generated with class methods rather than |
|
|
|
|
|
instance methods, the inheritance patterns are somewhat unusual. |
|
|
|
|
|
Be sure to use the ``@classmethod`` decorator when overriding a |
|
|
|
|
|
class method. Instance methods may use the attributes ``self.path`` |
|
|
|
|
|
``self.absolute_path``, and ``self.modified``. |
|
|
|
|
|
|
|
|
|
|
|
To change the way static urls are generated (e.g. to match the behavior |
|
|
|
|
|
of another server or CDN), override `make_static_url`, `parse_url_path`, |
|
|
|
|
|
`get_cache_time`, and/or `get_version`. |
|
|
|
|
|
|
|
|
|
|
|
To replace all interaction with the filesystem (e.g. to serve |
|
|
|
|
|
static content from a database), override `get_content`, |
|
|
|
|
|
`get_content_size`, `get_modified_time`, `get_absolute_path`, and |
|
|
|
|
|
`validate_absolute_path`. |
|
|
|
|
|
|
|
|
|
|
|
.. versionchanged:: 3.1 |
|
|
|
|
|
Many of the methods for subclasses were added in Tornado 3.1. |
|
|
""" |
|
|
""" |
|
|
CACHE_MAX_AGE = 86400 * 365 * 10 # 10 years |
|
|
CACHE_MAX_AGE = 86400 * 365 * 10 # 10 years |
|
|
|
|
|
|
|
|
@ -1616,7 +1779,7 @@ class StaticFileHandler(RequestHandler): |
|
|
_lock = threading.Lock() # protects _static_hashes |
|
|
_lock = threading.Lock() # protects _static_hashes |
|
|
|
|
|
|
|
|
def initialize(self, path, default_filename=None): |
|
|
def initialize(self, path, default_filename=None): |
|
|
self.root = os.path.abspath(path) + os.path.sep |
|
|
self.root = path |
|
|
self.default_filename = default_filename |
|
|
self.default_filename = default_filename |
|
|
|
|
|
|
|
|
@classmethod |
|
|
@classmethod |
|
|
@ -1628,60 +1791,270 @@ class StaticFileHandler(RequestHandler): |
|
|
self.get(path, include_body=False) |
|
|
self.get(path, include_body=False) |
|
|
|
|
|
|
|
|
def get(self, path, include_body=True): |
|
|
def get(self, path, include_body=True): |
|
|
path = self.parse_url_path(path) |
|
|
# Set up our path instance variables. |
|
|
abspath = os.path.abspath(os.path.join(self.root, path)) |
|
|
self.path = self.parse_url_path(path) |
|
|
# os.path.abspath strips a trailing / |
|
|
del path # make sure we don't refer to path instead of self.path again |
|
|
# it needs to be temporarily added back for requests to root/ |
|
|
absolute_path = self.get_absolute_path(self.root, self.path) |
|
|
if not (abspath + os.path.sep).startswith(self.root): |
|
|
self.absolute_path = self.validate_absolute_path( |
|
|
raise HTTPError(403, "%s is not in root static directory", path) |
|
|
self.root, absolute_path) |
|
|
if os.path.isdir(abspath) and self.default_filename is not None: |
|
|
if self.absolute_path is None: |
|
|
# need to look at the request.path here for when path is empty |
|
|
return |
|
|
# but there is some prefix to the path that was already |
|
|
|
|
|
# trimmed by the routing |
|
|
self.modified = self.get_modified_time() |
|
|
if not self.request.path.endswith("/"): |
|
|
self.set_headers() |
|
|
self.redirect(self.request.path + "/") |
|
|
|
|
|
|
|
|
if self.should_return_304(): |
|
|
|
|
|
self.set_status(304) |
|
|
|
|
|
return |
|
|
|
|
|
|
|
|
|
|
|
request_range = None |
|
|
|
|
|
range_header = self.request.headers.get("Range") |
|
|
|
|
|
if range_header: |
|
|
|
|
|
# As per RFC 2616 14.16, if an invalid Range header is specified, |
|
|
|
|
|
# the request will be treated as if the header didn't exist. |
|
|
|
|
|
request_range = httputil._parse_request_range(range_header) |
|
|
|
|
|
|
|
|
|
|
|
if request_range: |
|
|
|
|
|
start, end = request_range |
|
|
|
|
|
size = self.get_content_size() |
|
|
|
|
|
if (start is not None and start >= size) or end == 0: |
|
|
|
|
|
# As per RFC 2616 14.35.1, a range is not satisfiable only: if |
|
|
|
|
|
# the first requested byte is equal to or greater than the |
|
|
|
|
|
# content, or when a suffix with length 0 is specified |
|
|
|
|
|
self.set_status(416) # Range Not Satisfiable |
|
|
|
|
|
self.set_header("Content-Type", "text/plain") |
|
|
|
|
|
self.set_header("Content-Range", "bytes */%s" %(size, )) |
|
|
return |
|
|
return |
|
|
abspath = os.path.join(abspath, self.default_filename) |
|
|
if start is not None and start < 0: |
|
|
if not os.path.exists(abspath): |
|
|
start += size |
|
|
raise HTTPError(404) |
|
|
# Note: only return HTTP 206 if less than the entire range has been |
|
|
if not os.path.isfile(abspath): |
|
|
# requested. Not only is this semantically correct, but Chrome |
|
|
raise HTTPError(403, "%s is not a file", path) |
|
|
# refuses to play audio if it gets an HTTP 206 in response to |
|
|
|
|
|
# ``Range: bytes=0-``. |
|
|
|
|
|
if size != (end or size) - (start or 0): |
|
|
|
|
|
self.set_status(206) # Partial Content |
|
|
|
|
|
self.set_header("Content-Range", |
|
|
|
|
|
httputil._get_content_range(start, end, size)) |
|
|
|
|
|
else: |
|
|
|
|
|
start = end = None |
|
|
|
|
|
content = self.get_content(self.absolute_path, start, end) |
|
|
|
|
|
if isinstance(content, bytes_type): |
|
|
|
|
|
content = [content] |
|
|
|
|
|
content_length = 0 |
|
|
|
|
|
for chunk in content: |
|
|
|
|
|
if include_body: |
|
|
|
|
|
self.write(chunk) |
|
|
|
|
|
else: |
|
|
|
|
|
content_length += len(chunk) |
|
|
|
|
|
if not include_body: |
|
|
|
|
|
assert self.request.method == "HEAD" |
|
|
|
|
|
self.set_header("Content-Length", content_length) |
|
|
|
|
|
|
|
|
stat_result = os.stat(abspath) |
|
|
def compute_etag(self): |
|
|
modified = datetime.datetime.utcfromtimestamp(stat_result[stat.ST_MTIME]) |
|
|
"""Sets the ``Etag`` header based on static url version. |
|
|
|
|
|
|
|
|
|
|
|
This allows efficient ``If-None-Match`` checks against cached |
|
|
|
|
|
versions, and sends the correct ``Etag`` for a partial response |
|
|
|
|
|
(i.e. the same ``Etag`` as the full file). |
|
|
|
|
|
|
|
|
|
|
|
.. versionadded:: 3.1 |
|
|
|
|
|
""" |
|
|
|
|
|
version_hash = self._get_cached_version(self.absolute_path) |
|
|
|
|
|
if not version_hash: |
|
|
|
|
|
return None |
|
|
|
|
|
return '"%s"' % (version_hash, ) |
|
|
|
|
|
|
|
|
|
|
|
def set_headers(self): |
|
|
|
|
|
"""Sets the content and caching headers on the response. |
|
|
|
|
|
|
|
|
self.set_header("Last-Modified", modified) |
|
|
.. versionadded:: 3.1 |
|
|
|
|
|
""" |
|
|
|
|
|
self.set_header("Accept-Ranges", "bytes") |
|
|
|
|
|
self.set_etag_header() |
|
|
|
|
|
|
|
|
mime_type, encoding = mimetypes.guess_type(abspath) |
|
|
if self.modified is not None: |
|
|
if mime_type: |
|
|
self.set_header("Last-Modified", self.modified) |
|
|
self.set_header("Content-Type", mime_type) |
|
|
|
|
|
|
|
|
|
|
|
cache_time = self.get_cache_time(path, modified, mime_type) |
|
|
content_type = self.get_content_type() |
|
|
|
|
|
if content_type: |
|
|
|
|
|
self.set_header("Content-Type", content_type) |
|
|
|
|
|
|
|
|
|
|
|
cache_time = self.get_cache_time(self.path, self.modified, content_type) |
|
|
if cache_time > 0: |
|
|
if cache_time > 0: |
|
|
self.set_header("Expires", datetime.datetime.utcnow() + |
|
|
self.set_header("Expires", datetime.datetime.utcnow() + |
|
|
datetime.timedelta(seconds=cache_time)) |
|
|
datetime.timedelta(seconds=cache_time)) |
|
|
self.set_header("Cache-Control", "max-age=" + str(cache_time)) |
|
|
self.set_header("Cache-Control", "max-age=" + str(cache_time)) |
|
|
|
|
|
|
|
|
self.set_extra_headers(path) |
|
|
self.set_extra_headers(self.path) |
|
|
|
|
|
|
|
|
|
|
|
def should_return_304(self): |
|
|
|
|
|
"""Returns True if the headers indicate that we should return 304. |
|
|
|
|
|
|
|
|
|
|
|
.. versionadded:: 3.1 |
|
|
|
|
|
""" |
|
|
|
|
|
if self.check_etag_header(): |
|
|
|
|
|
return True |
|
|
|
|
|
|
|
|
# Check the If-Modified-Since, and don't send the result if the |
|
|
# Check the If-Modified-Since, and don't send the result if the |
|
|
# content has not been modified |
|
|
# content has not been modified |
|
|
ims_value = self.request.headers.get("If-Modified-Since") |
|
|
ims_value = self.request.headers.get("If-Modified-Since") |
|
|
if ims_value is not None: |
|
|
if ims_value is not None: |
|
|
date_tuple = email.utils.parsedate(ims_value) |
|
|
date_tuple = email.utils.parsedate(ims_value) |
|
|
if_since = datetime.datetime(*date_tuple[:6]) |
|
|
if date_tuple is not None: |
|
|
if if_since >= modified: |
|
|
if_since = datetime.datetime(*date_tuple[:6]) |
|
|
self.set_status(304) |
|
|
if if_since >= self.modified: |
|
|
|
|
|
return True |
|
|
|
|
|
|
|
|
|
|
|
return False |
|
|
|
|
|
|
|
|
|
|
|
@classmethod |
|
|
|
|
|
def get_absolute_path(cls, root, path): |
|
|
|
|
|
"""Returns the absolute location of ``path`` relative to ``root``. |
|
|
|
|
|
|
|
|
|
|
|
``root`` is the path configured for this `StaticFileHandler` |
|
|
|
|
|
(in most cases the ``static_path`` `Application` setting). |
|
|
|
|
|
|
|
|
|
|
|
This class method may be overridden in subclasses. By default |
|
|
|
|
|
it returns a filesystem path, but other strings may be used |
|
|
|
|
|
as long as they are unique and understood by the subclass's |
|
|
|
|
|
overridden `get_content`. |
|
|
|
|
|
|
|
|
|
|
|
.. versionadded:: 3.1 |
|
|
|
|
|
""" |
|
|
|
|
|
abspath = os.path.abspath(os.path.join(root, path)) |
|
|
|
|
|
return abspath |
|
|
|
|
|
|
|
|
|
|
|
def validate_absolute_path(self, root, absolute_path): |
|
|
|
|
|
"""Validate and return the absolute path. |
|
|
|
|
|
|
|
|
|
|
|
``root`` is the configured path for the `StaticFileHandler`, |
|
|
|
|
|
and ``path`` is the result of `get_absolute_path` |
|
|
|
|
|
|
|
|
|
|
|
This is an instance method called during request processing, |
|
|
|
|
|
so it may raise `HTTPError` or use methods like |
|
|
|
|
|
`RequestHandler.redirect` (return None after redirecting to |
|
|
|
|
|
halt further processing). This is where 404 errors for missing files |
|
|
|
|
|
are generated. |
|
|
|
|
|
|
|
|
|
|
|
This method may modify the path before returning it, but note that |
|
|
|
|
|
any such modifications will not be understood by `make_static_url`. |
|
|
|
|
|
|
|
|
|
|
|
In instance methods, this method's result is available as |
|
|
|
|
|
``self.absolute_path``. |
|
|
|
|
|
|
|
|
|
|
|
.. versionadded:: 3.1 |
|
|
|
|
|
""" |
|
|
|
|
|
root = os.path.abspath(root) |
|
|
|
|
|
# os.path.abspath strips a trailing / |
|
|
|
|
|
# it needs to be temporarily added back for requests to root/ |
|
|
|
|
|
if not (absolute_path + os.path.sep).startswith(root): |
|
|
|
|
|
raise HTTPError(403, "%s is not in root static directory", |
|
|
|
|
|
self.path) |
|
|
|
|
|
if (os.path.isdir(absolute_path) and |
|
|
|
|
|
self.default_filename is not None): |
|
|
|
|
|
# need to look at the request.path here for when path is empty |
|
|
|
|
|
# but there is some prefix to the path that was already |
|
|
|
|
|
# trimmed by the routing |
|
|
|
|
|
if not self.request.path.endswith("/"): |
|
|
|
|
|
self.redirect(self.request.path + "/", permanent=True) |
|
|
return |
|
|
return |
|
|
|
|
|
absolute_path = os.path.join(absolute_path, self.default_filename) |
|
|
|
|
|
if not os.path.exists(absolute_path): |
|
|
|
|
|
raise HTTPError(404) |
|
|
|
|
|
if not os.path.isfile(absolute_path): |
|
|
|
|
|
raise HTTPError(403, "%s is not a file", self.path) |
|
|
|
|
|
return absolute_path |
|
|
|
|
|
|
|
|
|
|
|
@classmethod |
|
|
|
|
|
def get_content(cls, abspath, start=None, end=None): |
|
|
|
|
|
"""Retrieve the content of the requested resource which is located |
|
|
|
|
|
at the given absolute path. |
|
|
|
|
|
|
|
|
|
|
|
This class method may be overridden by subclasses. Note that its |
|
|
|
|
|
signature is different from other overridable class methods |
|
|
|
|
|
(no ``settings`` argument); this is deliberate to ensure that |
|
|
|
|
|
``abspath`` is able to stand on its own as a cache key. |
|
|
|
|
|
|
|
|
|
|
|
This method should either return a byte string or an iterator |
|
|
|
|
|
of byte strings. The latter is preferred for large files |
|
|
|
|
|
as it helps reduce memory fragmentation. |
|
|
|
|
|
|
|
|
|
|
|
.. versionadded:: 3.1 |
|
|
|
|
|
""" |
|
|
with open(abspath, "rb") as file: |
|
|
with open(abspath, "rb") as file: |
|
|
data = file.read() |
|
|
if start is not None: |
|
|
if include_body: |
|
|
file.seek(start) |
|
|
self.write(data) |
|
|
if end is not None: |
|
|
|
|
|
remaining = end - (start or 0) |
|
|
else: |
|
|
else: |
|
|
assert self.request.method == "HEAD" |
|
|
remaining = None |
|
|
self.set_header("Content-Length", len(data)) |
|
|
while True: |
|
|
|
|
|
chunk_size = 64 * 1024 |
|
|
|
|
|
if remaining is not None and remaining < chunk_size: |
|
|
|
|
|
chunk_size = remaining |
|
|
|
|
|
chunk = file.read(chunk_size) |
|
|
|
|
|
if chunk: |
|
|
|
|
|
if remaining is not None: |
|
|
|
|
|
remaining -= len(chunk) |
|
|
|
|
|
yield chunk |
|
|
|
|
|
else: |
|
|
|
|
|
if remaining is not None: |
|
|
|
|
|
assert remaining == 0 |
|
|
|
|
|
return |
|
|
|
|
|
|
|
|
|
|
|
@classmethod |
|
|
|
|
|
def get_content_version(cls, abspath): |
|
|
|
|
|
"""Returns a version string for the resource at the given path. |
|
|
|
|
|
|
|
|
|
|
|
This class method may be overridden by subclasses. The |
|
|
|
|
|
default implementation is a hash of the file's contents. |
|
|
|
|
|
|
|
|
|
|
|
.. versionadded:: 3.1 |
|
|
|
|
|
""" |
|
|
|
|
|
data = cls.get_content(abspath) |
|
|
|
|
|
hasher = hashlib.md5() |
|
|
|
|
|
if isinstance(data, bytes_type): |
|
|
|
|
|
hasher.update(data) |
|
|
|
|
|
else: |
|
|
|
|
|
for chunk in data: |
|
|
|
|
|
hasher.update(chunk) |
|
|
|
|
|
return hasher.hexdigest() |
|
|
|
|
|
|
|
|
|
|
|
def _stat(self): |
|
|
|
|
|
if not hasattr(self, '_stat_result'): |
|
|
|
|
|
self._stat_result = os.stat(self.absolute_path) |
|
|
|
|
|
return self._stat_result |
|
|
|
|
|
|
|
|
|
|
|
def get_content_size(self): |
|
|
|
|
|
"""Retrieve the total size of the resource at the given path. |
|
|
|
|
|
|
|
|
|
|
|
This method may be overridden by subclasses. It will only |
|
|
|
|
|
be called if a partial result is requested from `get_content` |
|
|
|
|
|
|
|
|
|
|
|
.. versionadded:: 3.1 |
|
|
|
|
|
""" |
|
|
|
|
|
stat_result = self._stat() |
|
|
|
|
|
return stat_result[stat.ST_SIZE] |
|
|
|
|
|
|
|
|
|
|
|
def get_modified_time(self): |
|
|
|
|
|
"""Returns the time that ``self.absolute_path`` was last modified. |
|
|
|
|
|
|
|
|
|
|
|
May be overridden in subclasses. Should return a `~datetime.datetime` |
|
|
|
|
|
object or None. |
|
|
|
|
|
|
|
|
|
|
|
.. versionadded:: 3.1 |
|
|
|
|
|
""" |
|
|
|
|
|
stat_result = self._stat() |
|
|
|
|
|
modified = datetime.datetime.utcfromtimestamp(stat_result[stat.ST_MTIME]) |
|
|
|
|
|
return modified |
|
|
|
|
|
|
|
|
|
|
|
def get_content_type(self): |
|
|
|
|
|
"""Returns the ``Content-Type`` header to be used for this request. |
|
|
|
|
|
|
|
|
|
|
|
.. versionadded:: 3.1 |
|
|
|
|
|
""" |
|
|
|
|
|
mime_type, encoding = mimetypes.guess_type(self.absolute_path) |
|
|
|
|
|
return mime_type |
|
|
|
|
|
|
|
|
def set_extra_headers(self, path): |
|
|
def set_extra_headers(self, path): |
|
|
"""For subclass to add extra headers to the response""" |
|
|
"""For subclass to add extra headers to the response""" |
|
|
@ -1701,62 +2074,80 @@ class StaticFileHandler(RequestHandler): |
|
|
return self.CACHE_MAX_AGE if "v" in self.request.arguments else 0 |
|
|
return self.CACHE_MAX_AGE if "v" in self.request.arguments else 0 |
|
|
|
|
|
|
|
|
@classmethod |
|
|
@classmethod |
|
|
def make_static_url(cls, settings, path): |
|
|
def make_static_url(cls, settings, path, include_version=True): |
|
|
"""Constructs a versioned url for the given path. |
|
|
"""Constructs a versioned url for the given path. |
|
|
|
|
|
|
|
|
This method may be overridden in subclasses (but note that it is |
|
|
This method may be overridden in subclasses (but note that it |
|
|
a class method rather than an instance method). |
|
|
is a class method rather than an instance method). Subclasses |
|
|
|
|
|
are only required to implement the signature |
|
|
|
|
|
``make_static_url(cls, settings, path)``; other keyword |
|
|
|
|
|
arguments may be passed through `~RequestHandler.static_url` |
|
|
|
|
|
but are not standard. |
|
|
|
|
|
|
|
|
``settings`` is the `Application.settings` dictionary. ``path`` |
|
|
``settings`` is the `Application.settings` dictionary. ``path`` |
|
|
is the static path being requested. The url returned should be |
|
|
is the static path being requested. The url returned should be |
|
|
relative to the current host. |
|
|
relative to the current host. |
|
|
|
|
|
|
|
|
|
|
|
``include_version`` determines whether the generated URL should |
|
|
|
|
|
include the query string containing the version hash of the |
|
|
|
|
|
file corresponding to the given ``path``. |
|
|
|
|
|
|
|
|
""" |
|
|
""" |
|
|
static_url_prefix = settings.get('static_url_prefix', '/static/') |
|
|
url = settings.get('static_url_prefix', '/static/') + path |
|
|
|
|
|
if not include_version: |
|
|
|
|
|
return url |
|
|
|
|
|
|
|
|
version_hash = cls.get_version(settings, path) |
|
|
version_hash = cls.get_version(settings, path) |
|
|
if version_hash: |
|
|
if not version_hash: |
|
|
return static_url_prefix + path + "?v=" + version_hash |
|
|
return url |
|
|
return static_url_prefix + path |
|
|
|
|
|
|
|
|
return '%s?v=%s' % (url, version_hash) |
|
|
|
|
|
|
|
|
|
|
|
def parse_url_path(self, url_path): |
|
|
|
|
|
"""Converts a static URL path into a filesystem path. |
|
|
|
|
|
|
|
|
|
|
|
``url_path`` is the path component of the URL with |
|
|
|
|
|
``static_url_prefix`` removed. The return value should be |
|
|
|
|
|
filesystem path relative to ``static_path``. |
|
|
|
|
|
|
|
|
|
|
|
This is the inverse of `make_static_url`. |
|
|
|
|
|
""" |
|
|
|
|
|
if os.path.sep != "/": |
|
|
|
|
|
url_path = url_path.replace("/", os.path.sep) |
|
|
|
|
|
return url_path |
|
|
|
|
|
|
|
|
@classmethod |
|
|
@classmethod |
|
|
def get_version(cls, settings, path): |
|
|
def get_version(cls, settings, path): |
|
|
"""Generate the version string to be used in static URLs. |
|
|
"""Generate the version string to be used in static URLs. |
|
|
|
|
|
|
|
|
This method may be overridden in subclasses (but note that it |
|
|
|
|
|
is a class method rather than a static method). The default |
|
|
|
|
|
implementation uses a hash of the file's contents. |
|
|
|
|
|
|
|
|
|
|
|
``settings`` is the `Application.settings` dictionary and ``path`` |
|
|
``settings`` is the `Application.settings` dictionary and ``path`` |
|
|
is the relative location of the requested asset on the filesystem. |
|
|
is the relative location of the requested asset on the filesystem. |
|
|
The returned value should be a string, or ``None`` if no version |
|
|
The returned value should be a string, or ``None`` if no version |
|
|
could be determined. |
|
|
could be determined. |
|
|
|
|
|
|
|
|
|
|
|
.. versionchanged:: 3.1 |
|
|
|
|
|
This method was previously recommended for subclasses to override; |
|
|
|
|
|
`get_content_version` is now preferred as it allows the base |
|
|
|
|
|
class to handle caching of the result. |
|
|
""" |
|
|
""" |
|
|
abs_path = os.path.join(settings["static_path"], path) |
|
|
abs_path = cls.get_absolute_path(settings['static_path'], path) |
|
|
|
|
|
return cls._get_cached_version(abs_path) |
|
|
|
|
|
|
|
|
|
|
|
@classmethod |
|
|
|
|
|
def _get_cached_version(cls, abs_path): |
|
|
with cls._lock: |
|
|
with cls._lock: |
|
|
hashes = cls._static_hashes |
|
|
hashes = cls._static_hashes |
|
|
if abs_path not in hashes: |
|
|
if abs_path not in hashes: |
|
|
try: |
|
|
try: |
|
|
f = open(abs_path, "rb") |
|
|
hashes[abs_path] = cls.get_content_version(abs_path) |
|
|
hashes[abs_path] = hashlib.md5(f.read()).hexdigest() |
|
|
|
|
|
f.close() |
|
|
|
|
|
except Exception: |
|
|
except Exception: |
|
|
gen_log.error("Could not open static file %r", path) |
|
|
gen_log.error("Could not open static file %r", abs_path) |
|
|
hashes[abs_path] = None |
|
|
hashes[abs_path] = None |
|
|
hsh = hashes.get(abs_path) |
|
|
hsh = hashes.get(abs_path) |
|
|
if hsh: |
|
|
if hsh: |
|
|
return hsh[:5] |
|
|
return hsh |
|
|
return None |
|
|
return None |
|
|
|
|
|
|
|
|
def parse_url_path(self, url_path): |
|
|
|
|
|
"""Converts a static URL path into a filesystem path. |
|
|
|
|
|
|
|
|
|
|
|
``url_path`` is the path component of the URL with |
|
|
|
|
|
``static_url_prefix`` removed. The return value should be |
|
|
|
|
|
filesystem path relative to ``static_path``. |
|
|
|
|
|
""" |
|
|
|
|
|
if os.path.sep != "/": |
|
|
|
|
|
url_path = url_path.replace("/", os.path.sep) |
|
|
|
|
|
return url_path |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
class FallbackHandler(RequestHandler): |
|
|
class FallbackHandler(RequestHandler): |
|
|
"""A `RequestHandler` that wraps another HTTP server callback. |
|
|
"""A `RequestHandler` that wraps another HTTP server callback. |
|
|
@ -2028,6 +2419,22 @@ class TemplateModule(UIModule): |
|
|
return "".join(self._get_resources("html_body")) |
|
|
return "".join(self._get_resources("html_body")) |
|
|
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class _UIModuleNamespace(object): |
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"""Lazy namespace which creates UIModule proxies bound to a handler.""" |
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def __init__(self, handler, ui_modules): |
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self.handler = handler |
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self.ui_modules = ui_modules |
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def __getitem__(self, key): |
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return self.handler._ui_module(key, self.ui_modules[key]) |
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def __getattr__(self, key): |
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try: |
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return self[key] |
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except KeyError as e: |
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raise AttributeError(str(e)) |
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class URLSpec(object): |
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class URLSpec(object): |
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"""Specifies mappings between URLs and handlers.""" |
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"""Specifies mappings between URLs and handlers.""" |
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def __init__(self, pattern, handler_class, kwargs=None, name=None): |
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def __init__(self, pattern, handler_class, kwargs=None, name=None): |
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@ -2100,7 +2507,7 @@ class URLSpec(object): |
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for a in args: |
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for a in args: |
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if not isinstance(a, (unicode_type, bytes_type)): |
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if not isinstance(a, (unicode_type, bytes_type)): |
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a = str(a) |
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a = str(a) |
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converted_args.append(escape.url_escape(utf8(a))) |
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converted_args.append(escape.url_escape(utf8(a), plus=False)) |
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return self._path % tuple(converted_args) |
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return self._path % tuple(converted_args) |
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url = URLSpec |
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url = URLSpec |
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Ruud
12 years ago