Mercurial > libervia-web
annotate libervia/server/websockets.py @ 1180:cc16d93d4181 0.7.0b1
0.7.0b1 release
| author | Goffi <goffi@goffi.org> |
|---|---|
| date | Sun, 05 May 2019 20:42:14 +0200 |
| parents | 2af117bfe6cc |
| children | 251eba911d4d |
| rev | line source |
|---|---|
| 995 | 1 #!/usr/bin/python |
| 2 # -*- coding: utf-8 -*- | |
| 3 | |
| 4 # Libervia: a Salut à Toi frontend | |
| 1144 | 5 # Copyright (C) 2011-2019 Jérôme Poisson <goffi@goffi.org> |
| 995 | 6 |
| 7 # This program is free software: you can redistribute it and/or modify | |
| 8 # it under the terms of the GNU Affero General Public License as published by | |
| 9 # the Free Software Foundation, either version 3 of the License, or | |
| 10 # (at your option) any later version. | |
| 11 | |
| 12 # This program is distributed in the hope that it will be useful, | |
| 13 # but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 14 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
| 15 # GNU Affero General Public License for more details. | |
| 16 | |
| 17 # You should have received a copy of the GNU Affero General Public License | |
| 18 # along with this program. If not, see <http://www.gnu.org/licenses/>. | |
| 19 | |
| 20 from sat.core.i18n import _ | |
| 21 from sat.core.log import getLogger | |
|
1113
cdd389ef97bc
server: code style reformatting using black
Goffi <goffi@goffi.org>
parents:
1054
diff
changeset
|
22 |
| 995 | 23 log = getLogger(__name__) |
| 24 from sat.core import exceptions | |
| 25 | |
| 26 from autobahn.twisted import websocket | |
| 27 from autobahn.twisted import resource as resource | |
| 28 from autobahn.websocket import types | |
| 29 | |
| 30 import json | |
| 31 | |
|
1113
cdd389ef97bc
server: code style reformatting using black
Goffi <goffi@goffi.org>
parents:
1054
diff
changeset
|
32 LIBERVIA_PROTOCOL = "libervia_page" |
| 995 | 33 |
| 34 | |
| 35 class LiberviaPageWSProtocol(websocket.WebSocketServerProtocol): | |
| 36 host = None | |
| 37 tokens_map = {} | |
| 38 | |
| 39 def onConnect(self, request): | |
|
1113
cdd389ef97bc
server: code style reformatting using black
Goffi <goffi@goffi.org>
parents:
1054
diff
changeset
|
40 prefix = LIBERVIA_PROTOCOL + u"_" |
| 995 | 41 for protocol in request.protocols: |
| 42 if protocol.startswith(prefix): | |
|
1113
cdd389ef97bc
server: code style reformatting using black
Goffi <goffi@goffi.org>
parents:
1054
diff
changeset
|
43 token = protocol[len(prefix) :].strip() |
| 995 | 44 if token: |
| 45 break | |
| 46 else: | |
|
1113
cdd389ef97bc
server: code style reformatting using black
Goffi <goffi@goffi.org>
parents:
1054
diff
changeset
|
47 raise types.ConnectionDeny( |
|
cdd389ef97bc
server: code style reformatting using black
Goffi <goffi@goffi.org>
parents:
1054
diff
changeset
|
48 types.ConnectionDeny.NOT_IMPLEMENTED, u"Can't use this subprotocol" |
|
cdd389ef97bc
server: code style reformatting using black
Goffi <goffi@goffi.org>
parents:
1054
diff
changeset
|
49 ) |
| 995 | 50 |
| 51 if token not in self.tokens_map: | |
| 52 log.warning(_(u"Can't activate page socket: unknown token")) | |
|
1113
cdd389ef97bc
server: code style reformatting using black
Goffi <goffi@goffi.org>
parents:
1054
diff
changeset
|
53 raise types.ConnectionDeny( |
|
cdd389ef97bc
server: code style reformatting using black
Goffi <goffi@goffi.org>
parents:
1054
diff
changeset
|
54 types.ConnectionDeny.FORBIDDEN, u"Bad token, please reload page" |
|
cdd389ef97bc
server: code style reformatting using black
Goffi <goffi@goffi.org>
parents:
1054
diff
changeset
|
55 ) |
| 995 | 56 self.token = token |
|
1113
cdd389ef97bc
server: code style reformatting using black
Goffi <goffi@goffi.org>
parents:
1054
diff
changeset
|
57 self.page = self.tokens_map[token]["page"] |
|
cdd389ef97bc
server: code style reformatting using black
Goffi <goffi@goffi.org>
parents:
1054
diff
changeset
|
58 self.request = self.tokens_map[token]["request"] |
| 995 | 59 return protocol |
| 60 | |
| 61 def onOpen(self): | |
|
1113
cdd389ef97bc
server: code style reformatting using black
Goffi <goffi@goffi.org>
parents:
1054
diff
changeset
|
62 log.debug( |
|
cdd389ef97bc
server: code style reformatting using black
Goffi <goffi@goffi.org>
parents:
1054
diff
changeset
|
63 _( |
|
cdd389ef97bc
server: code style reformatting using black
Goffi <goffi@goffi.org>
parents:
1054
diff
changeset
|
64 u"Websocket opened for {page} (token: {token})".format( |
|
cdd389ef97bc
server: code style reformatting using black
Goffi <goffi@goffi.org>
parents:
1054
diff
changeset
|
65 page=self.page, token=self.token |
|
cdd389ef97bc
server: code style reformatting using black
Goffi <goffi@goffi.org>
parents:
1054
diff
changeset
|
66 ) |
|
cdd389ef97bc
server: code style reformatting using black
Goffi <goffi@goffi.org>
parents:
1054
diff
changeset
|
67 ) |
|
cdd389ef97bc
server: code style reformatting using black
Goffi <goffi@goffi.org>
parents:
1054
diff
changeset
|
68 ) |
| 995 | 69 self.request.sendData = self.sendJSONData |
| 70 self.page.onSocketOpen(self.request) | |
| 71 | |
| 72 def onMessage(self, payload, isBinary): | |
| 73 try: | |
|
1113
cdd389ef97bc
server: code style reformatting using black
Goffi <goffi@goffi.org>
parents:
1054
diff
changeset
|
74 data_json = json.loads(payload.decode("utf8")) |
| 995 | 75 except ValueError as e: |
|
1113
cdd389ef97bc
server: code style reformatting using black
Goffi <goffi@goffi.org>
parents:
1054
diff
changeset
|
76 log.warning( |
|
cdd389ef97bc
server: code style reformatting using black
Goffi <goffi@goffi.org>
parents:
1054
diff
changeset
|
77 _(u"Not valid JSON, ignoring data: {msg}\n{data}").format( |
|
cdd389ef97bc
server: code style reformatting using black
Goffi <goffi@goffi.org>
parents:
1054
diff
changeset
|
78 msg=e, data=payload |
|
cdd389ef97bc
server: code style reformatting using black
Goffi <goffi@goffi.org>
parents:
1054
diff
changeset
|
79 ) |
|
cdd389ef97bc
server: code style reformatting using black
Goffi <goffi@goffi.org>
parents:
1054
diff
changeset
|
80 ) |
| 995 | 81 return |
|
1113
cdd389ef97bc
server: code style reformatting using black
Goffi <goffi@goffi.org>
parents:
1054
diff
changeset
|
82 # we request page first, to raise an AttributeError |
| 995 | 83 # if it is not set (which should never happen) |
| 84 page = self.page | |
| 85 try: | |
| 86 cb = page.on_data | |
| 87 except AttributeError: | |
|
1113
cdd389ef97bc
server: code style reformatting using black
Goffi <goffi@goffi.org>
parents:
1054
diff
changeset
|
88 log.warning( |
|
cdd389ef97bc
server: code style reformatting using black
Goffi <goffi@goffi.org>
parents:
1054
diff
changeset
|
89 _( |
|
cdd389ef97bc
server: code style reformatting using black
Goffi <goffi@goffi.org>
parents:
1054
diff
changeset
|
90 u'No "on_data" method set on dynamic page, ignoring data:\n{data}' |
|
cdd389ef97bc
server: code style reformatting using black
Goffi <goffi@goffi.org>
parents:
1054
diff
changeset
|
91 ).format(data=data_json) |
|
cdd389ef97bc
server: code style reformatting using black
Goffi <goffi@goffi.org>
parents:
1054
diff
changeset
|
92 ) |
| 995 | 93 else: |
| 94 cb(page, self.request, data_json) | |
| 95 | |
| 96 def onClose(self, wasClean, code, reason): | |
| 97 try: | |
| 98 token = self.token | |
| 99 except AttributeError: | |
|
1113
cdd389ef97bc
server: code style reformatting using black
Goffi <goffi@goffi.org>
parents:
1054
diff
changeset
|
100 log.warning(_(u"Websocket closed but no token is associated")) |
| 995 | 101 return |
| 102 | |
| 103 self.page.onSocketClose(self.request) | |
| 104 | |
| 105 try: | |
| 106 del self.tokens_map[token] | |
| 107 del self.request.sendData | |
| 108 except (KeyError, AttributeError): | |
|
1113
cdd389ef97bc
server: code style reformatting using black
Goffi <goffi@goffi.org>
parents:
1054
diff
changeset
|
109 raise exceptions.InternalError( |
|
cdd389ef97bc
server: code style reformatting using black
Goffi <goffi@goffi.org>
parents:
1054
diff
changeset
|
110 _(u"Token or sendData doesn't exist, this should never happen!") |
|
cdd389ef97bc
server: code style reformatting using black
Goffi <goffi@goffi.org>
parents:
1054
diff
changeset
|
111 ) |
|
cdd389ef97bc
server: code style reformatting using black
Goffi <goffi@goffi.org>
parents:
1054
diff
changeset
|
112 log.debug( |
|
cdd389ef97bc
server: code style reformatting using black
Goffi <goffi@goffi.org>
parents:
1054
diff
changeset
|
113 _( |
|
cdd389ef97bc
server: code style reformatting using black
Goffi <goffi@goffi.org>
parents:
1054
diff
changeset
|
114 u"Websocket closed for {page} (token: {token}). {reason}".format( |
|
cdd389ef97bc
server: code style reformatting using black
Goffi <goffi@goffi.org>
parents:
1054
diff
changeset
|
115 page=self.page, |
|
cdd389ef97bc
server: code style reformatting using black
Goffi <goffi@goffi.org>
parents:
1054
diff
changeset
|
116 token=self.token, |
|
cdd389ef97bc
server: code style reformatting using black
Goffi <goffi@goffi.org>
parents:
1054
diff
changeset
|
117 reason=u"" |
|
cdd389ef97bc
server: code style reformatting using black
Goffi <goffi@goffi.org>
parents:
1054
diff
changeset
|
118 if wasClean |
|
cdd389ef97bc
server: code style reformatting using black
Goffi <goffi@goffi.org>
parents:
1054
diff
changeset
|
119 else _(u"Reason: {reason}").format(reason=reason), |
|
cdd389ef97bc
server: code style reformatting using black
Goffi <goffi@goffi.org>
parents:
1054
diff
changeset
|
120 ) |
|
cdd389ef97bc
server: code style reformatting using black
Goffi <goffi@goffi.org>
parents:
1054
diff
changeset
|
121 ) |
|
cdd389ef97bc
server: code style reformatting using black
Goffi <goffi@goffi.org>
parents:
1054
diff
changeset
|
122 ) |
| 995 | 123 |
| 124 def sendJSONData(self, type_, **data): | |
|
1113
cdd389ef97bc
server: code style reformatting using black
Goffi <goffi@goffi.org>
parents:
1054
diff
changeset
|
125 assert "type" not in data |
|
cdd389ef97bc
server: code style reformatting using black
Goffi <goffi@goffi.org>
parents:
1054
diff
changeset
|
126 data["type"] = type_ |
|
cdd389ef97bc
server: code style reformatting using black
Goffi <goffi@goffi.org>
parents:
1054
diff
changeset
|
127 self.sendMessage(json.dumps(data, ensure_ascii=False).encode("utf8")) |
| 995 | 128 |
| 129 @classmethod | |
| 130 def getBaseURL(cls, host, secure): | |
| 131 return u"ws{sec}://localhost:{port}".format( | |
|
1113
cdd389ef97bc
server: code style reformatting using black
Goffi <goffi@goffi.org>
parents:
1054
diff
changeset
|
132 sec="s" if secure else "", |
|
cdd389ef97bc
server: code style reformatting using black
Goffi <goffi@goffi.org>
parents:
1054
diff
changeset
|
133 port=cls.host.options["port_https" if secure else "port"], |
|
cdd389ef97bc
server: code style reformatting using black
Goffi <goffi@goffi.org>
parents:
1054
diff
changeset
|
134 ) |
| 995 | 135 |
| 136 @classmethod | |
| 137 def getResource(cls, host, secure): | |
| 138 if cls.host is None: | |
| 139 cls.host = host | |
| 140 factory = websocket.WebSocketServerFactory(cls.getBaseURL(host, secure)) | |
| 141 factory.protocol = cls | |
| 142 return resource.WebSocketResource(factory) | |
| 143 | |
| 144 @classmethod | |
| 145 def registerToken(cls, token, page, request): | |
| 146 if token in cls.tokens_map: | |
|
1113
cdd389ef97bc
server: code style reformatting using black
Goffi <goffi@goffi.org>
parents:
1054
diff
changeset
|
147 raise exceptions.ConflictError(_(u"This token is already registered")) |
|
cdd389ef97bc
server: code style reformatting using black
Goffi <goffi@goffi.org>
parents:
1054
diff
changeset
|
148 cls.tokens_map[token] = {"page": page, "request": request} |