2015-06-08 08:45:17 +00:00
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import pyparsing as pp
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2015-06-18 16:05:09 +00:00
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from . import base, message
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2015-06-08 08:45:17 +00:00
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"""
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Normal HTTP requests:
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<method>:<path>:<header>:<body>
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e.g.:
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GET:/
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2015-06-18 09:07:33 +00:00
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GET:/:h"foo"="bar"
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POST:/:h"foo"="bar":b'content body payload'
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Normal HTTP responses:
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<code>:<header>:<body>
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e.g.:
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200
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302:h"foo"="bar"
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404:h"foo"="bar":b'content body payload'
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2015-06-08 08:45:17 +00:00
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Individual HTTP/2 frames:
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h2f:<payload_length>:<type>:<flags>:<stream_id>:<payload>
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e.g.:
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h2f:0:PING
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h2f:42:HEADERS:END_HEADERS:0x1234567:foo=bar,host=example.com
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h2f:42:DATA:END_STREAM,PADDED:0x1234567:'content body payload'
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"""
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class Method(base.OptionsOrValue):
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options = [
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"GET",
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"HEAD",
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"POST",
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"PUT",
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"DELETE",
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]
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class Path(base.Value):
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pass
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class Header(base.KeyValue):
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2015-06-16 11:52:41 +00:00
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unique_name = None
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2015-06-08 08:45:17 +00:00
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preamble = "h"
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2015-06-16 11:52:41 +00:00
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def values(self, settings):
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return (
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self.key.get_generator(settings),
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self.value.get_generator(settings),
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)
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2015-06-08 08:45:17 +00:00
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class Body(base.Value):
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preamble = "b"
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class Times(base.Integer):
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preamble = "x"
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2015-06-16 11:52:41 +00:00
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2015-06-11 14:13:22 +00:00
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class Code(base.Integer):
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pass
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2015-06-08 08:45:17 +00:00
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2015-06-16 11:52:41 +00:00
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2015-06-08 08:45:17 +00:00
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class Request(message.Message):
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comps = (
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Header,
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Body,
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Times,
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)
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2015-06-11 14:13:22 +00:00
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logattrs = ["method", "path"]
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def __init__(self, tokens):
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2015-06-16 11:52:41 +00:00
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super(Request, self).__init__(tokens)
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2015-06-11 14:13:22 +00:00
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self.rendered_values = None
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2015-06-08 08:45:17 +00:00
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@property
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def method(self):
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return self.tok(Method)
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@property
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def path(self):
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return self.tok(Path)
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@property
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def headers(self):
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return self.toks(Header)
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@property
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def body(self):
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return self.tok(Body)
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@property
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def times(self):
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return self.tok(Times)
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@property
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def actions(self):
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return []
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@classmethod
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2015-06-18 09:07:33 +00:00
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def expr(cls):
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parts = [i.expr() for i in cls.comps]
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2015-06-08 08:45:17 +00:00
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atom = pp.MatchFirst(parts)
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resp = pp.And(
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[
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Method.expr(),
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base.Sep,
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Path.expr(),
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pp.ZeroOrMore(base.Sep + atom)
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]
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)
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2015-06-18 09:07:33 +00:00
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resp = resp.setParseAction(cls)
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2015-06-08 08:45:17 +00:00
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return resp
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def resolve(self, settings, msg=None):
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2015-06-11 14:13:22 +00:00
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return self
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def values(self, settings):
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if self.rendered_values:
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return self.rendered_values
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else:
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2015-06-16 11:52:41 +00:00
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headers = [header.values(settings) for header in self.headers]
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2015-06-11 14:13:22 +00:00
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body = self.body
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if body:
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body = body.string()
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self.rendered_values = settings.protocol.create_request(
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self.method.string(),
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self.path.string(),
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headers, # TODO: parse that into a dict?!
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body)
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return self.rendered_values
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def spec(self):
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return ":".join([i.spec() for i in self.tokens])
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class Response(message.Message):
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unique_name = None
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comps = (
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Header,
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Body,
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)
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def __init__(self, tokens):
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super(Response, self).__init__(tokens)
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self.rendered_values = None
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self.stream_id = 0
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@property
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def code(self):
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return self.tok(Code)
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@property
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def headers(self):
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return self.toks(Header)
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@property
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def body(self):
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return self.tok(Body)
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@property
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def actions(self):
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return []
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def resolve(self, settings, msg=None):
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return self
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@classmethod
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2015-06-18 09:07:33 +00:00
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def expr(cls):
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parts = [i.expr() for i in cls.comps]
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2015-06-11 14:13:22 +00:00
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atom = pp.MatchFirst(parts)
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resp = pp.And(
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[
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Code.expr(),
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pp.ZeroOrMore(base.Sep + atom)
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]
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2015-06-08 08:45:17 +00:00
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)
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2015-06-18 09:07:33 +00:00
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resp = resp.setParseAction(cls)
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2015-06-11 14:13:22 +00:00
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return resp
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2015-06-08 08:45:17 +00:00
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def values(self, settings):
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2015-06-11 14:13:22 +00:00
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if self.rendered_values:
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return self.rendered_values
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else:
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2015-06-16 11:52:41 +00:00
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headers = [header.values(settings) for header in self.headers]
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2015-06-11 14:13:22 +00:00
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body = self.body
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if body:
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2015-06-16 09:33:10 +00:00
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body = body.string()
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2015-06-11 14:13:22 +00:00
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self.rendered_values = settings.protocol.create_response(
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self.code.string(),
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self.stream_id,
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headers, # TODO: parse that into a dict?!
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body)
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return self.rendered_values
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2015-06-08 08:45:17 +00:00
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def spec(self):
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return ":".join([i.spec() for i in self.tokens])
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2015-06-18 09:07:33 +00:00
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2015-06-11 14:13:22 +00:00
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def make_error_response(reason, body=None):
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2015-06-16 09:33:10 +00:00
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tokens = [
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Code("800"),
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Body(base.TokValueLiteral("pathod error: " + (body or reason))),
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]
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return Response(tokens)
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2015-06-08 08:45:17 +00:00
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2015-06-18 09:07:33 +00:00
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2015-06-08 13:28:24 +00:00
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# class Frame(message.Message):
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2015-06-08 08:45:17 +00:00
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# pass
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