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"""Python Web Thing server implementation."""
from
zeroconf
import
ServiceInfo
,
Zeroconf
import
json
import
socket
import
tornado
.
concurrent
import
tornado
.
gen
import
tornado
.
httpserver
import
tornado
.
ioloop
import
tornado
.
web
import
tornado
.
websocket
from
.
errors
import
PropertyError
from
.
subscriber
import
Subscriber
from
.
utils
import
get_addresses
,
get_ip
@
tornado
.
gen
.
coroutine
def
perform_action
(
action
):
"""Perform an Action in a coroutine."""
action
.
start
()
class
SingleThing
:
"""A container for a single thing."""
def
__init__
(
self
,
thing
):
"""
Initialize the container.
thing -- the thing to store
"""
self
.
thing
=
thing
def
get_thing
(
self
,
_
=
None
):
"""Get the thing at the given index."""
return
self
.
thing
def
get_things
(
self
):
"""Get the list of things."""
return
[
self
.
thing
]
def
get_name
(
self
):
"""Get the mDNS server name."""
return
self
.
thing
.
title
class
MultipleThings
:
"""A container for multiple things."""
def
__init__
(
self
,
things
,
name
):
"""
Initialize the container.
things -- the things to store
name -- the mDNS server name
"""
self
.
things
=
things
self
.
name
=
name
def
get_thing
(
self
,
idx
):
"""
Get the thing at the given index.
idx -- the index
"""
try
:
idx
=
int
(
idx
)
except
ValueError
:
return
None
if
idx
<
0
or
idx
>=
len
(
self
.
things
):
return
None
return
self
.
things
[
idx
]
def
get_things
(
self
):
"""Get the list of things."""
return
self
.
things
def
get_name
(
self
):
"""Get the mDNS server name."""
return
self
.
name
class
BaseHandler
(
tornado
.
web
.
RequestHandler
):
"""Base handler that is initialized with a thing."""
def
initialize
(
self
,
things
,
hosts
,
disable_host_validation
):
"""
Initialize the handler.
things -- list of Things managed by this server
hosts -- list of allowed hostnames
disable_host_validation -- whether or not to disable host validation --
note that this can lead to DNS rebinding
attacks
"""
self
.
things
=
things
self
.
hosts
=
hosts
self
.
disable_host_validation
=
disable_host_validation
def
prepare
(
self
):
"""Validate Host header."""
host
=
self
.
request
.
headers
.
get
(
'Host'
,
None
)
if
self
.
disable_host_validation
or
(
host
is
not
None
and
host
in
self
.
hosts
):
return
raise
tornado
.
web
.
HTTPError
(
403
)
def
get_thing
(
self
,
thing_id
):
"""
Get the thing this request is for.
thing_id -- ID of the thing to get, in string form
Returns the thing, or None if not found.
"""
return
self
.
things
.
get_thing
(
thing_id
)
def
set_default_headers
(
self
,
*
args
,
**
kwargs
):
"""Set the default headers for all requests."""
self
.
set_header
(
'Access-Control-Allow-Origin'
,
'*'
)
self
.
set_header
(
'Access-Control-Allow-Headers'
,
'Origin, X-Requested-With, Content-Type, Accept'
)
self
.
set_header
(
'Access-Control-Allow-Methods'
,
'GET, HEAD, PUT, POST, DELETE'
)
def
options
(
self
,
*
args
,
**
kwargs
):
"""Handle an OPTIONS request."""
self
.
set_status
(
204
)
class
ThingsHandler
(
BaseHandler
):
"""Handle a request to / when the server manages multiple things."""
def
get
(
self
):
"""
Handle a GET request.
property_name -- the name of the property from the URL path
"""
self
.
set_header
(
'Content-Type'
,
'application/json'
)
ws_href
=
'{}://{}'
.
format
(
'wss'
if
self
.
request
.
protocol
==
'https'
else
'ws'
,
self
.
request
.
headers
.
get
(
'Host'
,
''
)
)
descriptions
=
[]
for
thing
in
self
.
things
.
get_things
():
description
=
thing
.
as_thing_description
()
description
[
'href'
]
=
thing
.
get_href
()
description
[
'links'
].
append
({
'rel'
:
'alternate'
,
'href'
:
'{}{}'
.
format
(
ws_href
,
thing
.
get_href
()),
})
description
[
'base'
]
=
'{}://{}{}'
.
format
(
self
.
request
.
protocol
,
self
.
request
.
headers
.
get
(
'Host'
,
''
),
thing
.
get_href
()
)
description
[
'securityDefinitions'
]
=
{
'nosec_sc'
: {
'scheme'
:
'nosec'
,
},
}
description
[
'security'
]
=
'nosec_sc'
descriptions
.
append
(
description
)
self
.
write
(
json
.
dumps
(
descriptions
))
class
ThingHandler
(
tornado
.
websocket
.
WebSocketHandler
,
Subscriber
):
"""Handle a request to /."""
def
initialize
(
self
,
things
,
hosts
,
disable_host_validation
):
"""
Initialize the handler.
things -- list of Things managed by this server
hosts -- list of allowed hostnames
disable_host_validation -- whether or not to disable host validation --
note that this can lead to DNS rebinding
attacks
"""
self
.
things
=
things
self
.
hosts
=
hosts
self
.
disable_host_validation
=
disable_host_validation
def
prepare
(
self
):
"""Validate Host header."""
host
=
self
.
request
.
headers
.
get
(
'Host'
,
None
)
if
self
.
disable_host_validation
or
(
host
is
not
None
and
host
in
self
.
hosts
):
return
raise
tornado
.
web
.
HTTPError
(
403
)
def
set_default_headers
(
self
,
*
args
,
**
kwargs
):
"""Set the default headers for all requests."""
self
.
set_header
(
'Access-Control-Allow-Origin'
,
'*'
)
self
.
set_header
(
'Access-Control-Allow-Headers'
,
'Origin, X-Requested-With, Content-Type, Accept'
)
self
.
set_header
(
'Access-Control-Allow-Methods'
,
'GET, HEAD, PUT, POST, DELETE'
)
def
options
(
self
,
*
args
,
**
kwargs
):
"""Handle an OPTIONS request."""
self
.
set_status
(
204
)
def
get_thing
(
self
,
thing_id
):
"""
Get the thing this request is for.
thing_id -- ID of the thing to get, in string form
Returns the thing, or None if not found.
"""
return
self
.
things
.
get_thing
(
thing_id
)
@
tornado
.
gen
.
coroutine
def
get
(
self
,
thing_id
=
'0'
):
"""
Handle a GET request, including websocket requests.
thing_id -- ID of the thing this request is for
"""
self
.
thing
=
self
.
get_thing
(
thing_id
)
if
self
.
thing
is
None
:
self
.
set_status
(
404
)
self
.
finish
()
return
if
self
.
request
.
headers
.
get
(
'Upgrade'
,
''
).
lower
()
==
'websocket'
:
yield
tornado
.
websocket
.
WebSocketHandler
.
get
(
self
)
return
self
.
set_header
(
'Content-Type'
,
'application/json'
)
ws_href
=
'{}://{}'
.
format
(
'wss'
if
self
.
request
.
protocol
==
'https'
else
'ws'
,
self
.
request
.
headers
.
get
(
'Host'
,
''
)
)
description
=
self
.
thing
.
as_thing_description
()
description
[
'links'
].
append
({
'rel'
:
'alternate'
,
'href'
:
'{}{}'
.
format
(
ws_href
,
self
.
thing
.
get_href
()),
})
description
[
'base'
]
=
'{}://{}{}'
.
format
(
self
.
request
.
protocol
,
self
.
request
.
headers
.
get
(
'Host'
,
''
),
self
.
thing
.
get_href
()
)
description
[
'securityDefinitions'
]
=
{
'nosec_sc'
: {
'scheme'
:
'nosec'
,
},
}
description
[
'security'
]
=
'nosec_sc'
self
.
write
(
json
.
dumps
(
description
))
self
.
finish
()
def
open
(
self
):
"""Handle a new connection."""
self
.
thing
.
add_subscriber
(
self
)
def
on_message
(
self
,
message
):
"""
Handle an incoming message.
message -- message to handle
"""
try
:
message
=
json
.
loads
(
message
)
except
ValueError
:
try
:
self
.
write_message
(
json
.
dumps
({
'messageType'
:
'error'
,
'data'
: {
'status'
:
'400 Bad Request'
,
'message'
:
'Parsing request failed'
,
},
}))
except
tornado
.
websocket
.
WebSocketClosedError
:
pass
return
if
'messageType'
not
in
message
or
'data'
not
in
message
:
try
:
self
.
write_message
(
json
.
dumps
({
'messageType'
:
'error'
,
'data'
: {
'status'
:
'400 Bad Request'
,
'message'
:
'Invalid message'
,
},
}))
except
tornado
.
websocket
.
WebSocketClosedError
:
pass
return
msg_type
=
message
[
'messageType'
]
if
msg_type
==
'setProperty'
:
for
property_name
,
property_value
in
message
[
'data'
].
items
():
try
:
self
.
thing
.
set_property
(
property_name
,
property_value
)
except
PropertyError
as
e
:
self
.
write_message
(
json
.
dumps
({
'messageType'
:
'error'
,
'data'
: {
'status'
:
'400 Bad Request'
,
'message'
:
str
(
e
),
},
}))
elif
msg_type
==
'requestAction'
:
for
action_name
,
action_params
in
message
[
'data'
].
items
():
input_
=
None
if
'input'
in
action_params
:
input_
=
action_params
[
'input'
]
action
=
self
.
thing
.
perform_action
(
action_name
,
input_
)
if
action
:
tornado
.
ioloop
.
IOLoop
.
current
().
spawn_callback
(
perform_action
,
action
,
)
else
:
self
.
write_message
(
json
.
dumps
({
'messageType'
:
'error'
,
'data'
: {
'status'
:
'400 Bad Request'
,
'message'
:
'Invalid action request'
,
'request'
:
message
,
},
}))
elif
msg_type
==
'addEventSubscription'
:
for
event_name
in
message
[
'data'
].
keys
():
self
.
thing
.
add_event_subscriber
(
event_name
,
self
)
else
:
try
:
self
.
write_message
(
json
.
dumps
({
'messageType'
:
'error'
,
'data'
: {
'status'
:
'400 Bad Request'
,
'message'
:
'Unknown messageType: '
+
msg_type
,
'request'
:
message
,
},
}))
except
tornado
.
websocket
.
WebSocketClosedError
:
pass
def
on_close
(
self
):
"""Handle a close event on the socket."""
self
.
thing
.
remove_subscriber
(
self
)
def
check_origin
(
self
,
origin
):
"""Allow connections from all origins."""
return
True
def
update_property
(
self
,
property_
):
"""
Send an update about a Property.
:param property_: Property
"""
message
=
json
.
dumps
({
'messageType'
:
'propertyStatus'
,
'data'
: {
property_
.
name
:
property_
.
get_value
(),
}
})
self
.
write_message
(
message
)
def
update_action
(
self
,
action
):
"""
Send an update about an Action.
:param action: Action
"""
message
=
json
.
dumps
({
'messageType'
:
'actionStatus'
,
'data'
:
action
.
as_action_description
(),
})
self
.
write_message
(
message
)
def
update_event
(
self
,
event
):
"""
Send an update about an Event.
:param event: Event
"""
message
=
json
.
dumps
({
'messageType'
:
'event'
,
'data'
:
event
.
as_event_description
(),
})
self
.
write_message
(
message
)
class
PropertiesHandler
(
BaseHandler
):
"""Handle a request to /properties."""
def
get
(
self
,
thing_id
=
'0'
):
"""
Handle a GET request.
thing_id -- ID of the thing this request is for
"""
thing
=
self
.
get_thing
(
thing_id
)
if
thing
is
None
:
self
.
set_status
(
404
)
return
self
.
set_header
(
'Content-Type'
,
'application/json'
)
self
.
write
(
json
.
dumps
(
thing
.
get_properties
()))
class
PropertyHandler
(
BaseHandler
):
"""Handle a request to /properties/<property>."""
def
get
(
self
,
thing_id
=
'0'
,
property_name
=
None
):
"""
Handle a GET request.
thing_id -- ID of the thing this request is for
property_name -- the name of the property from the URL path
"""
thing
=
self
.
get_thing
(
thing_id
)
if
thing
is
None
:
self
.
set_status
(
404
)
return
if
thing
.
has_property
(
property_name
):
self
.
set_header
(
'Content-Type'
,
'application/json'
)
self
.
write
(
json
.
dumps
({
property_name
:
thing
.
get_property
(
property_name
),
}))
else
:
self
.
set_status
(
404
)
def
put
(
self
,
thing_id
=
'0'
,
property_name
=
None
):
"""
Handle a PUT request.
thing_id -- ID of the thing this request is for
property_name -- the name of the property from the URL path
"""
thing
=
self
.
get_thing
(
thing_id
)
if
thing
is
None
:
self
.
set_status
(
404
)
return
try
:
args
=
json
.
loads
(
self
.
request
.
body
.
decode
())
except
ValueError
:
self
.
set_status
(
400
)
return
if
property_name
not
in
args
:
self
.
set_status
(
400
)
return
if
thing
.
has_property
(
property_name
):
try
:
thing
.
set_property
(
property_name
,
args
[
property_name
])
except
PropertyError
:
self
.
set_status
(
400
)
return
self
.
set_header
(
'Content-Type'
,
'application/json'
)
self
.
write
(
json
.
dumps
({
property_name
:
thing
.
get_property
(
property_name
),
}))
else
:
self
.
set_status
(
404
)
class
ActionsHandler
(
BaseHandler
):
"""Handle a request to /actions."""
def
get
(
self
,
thing_id
=
'0'
):
"""
Handle a GET request.
thing_id -- ID of the thing this request is for
"""
thing
=
self
.
get_thing
(
thing_id
)
if
thing
is
None
:
self
.
set_status
(
404
)
return
self
.
set_header
(
'Content-Type'
,
'application/json'
)
self
.
write
(
json
.
dumps
(
thing
.
get_action_descriptions
()))
def
post
(
self
,
thing_id
=
'0'
):
"""
Handle a POST request.
thing_id -- ID of the thing this request is for
"""
thing
=
self
.
get_thing
(
thing_id
)
if
thing
is
None
:
self
.
set_status
(
404
)
return
try
:
message
=
json
.
loads
(
self
.
request
.
body
.
decode
())
except
ValueError
:
self
.
set_status
(
400
)
return
keys
=
list
(
message
.
keys
())
if
len
(
keys
)
!=
1
:
self
.
set_status
(
400
)
return
action_name
=
keys
[
0
]
action_params
=
message
[
action_name
]
input_
=
None
if
'input'
in
action_params
:
input_
=
action_params
[
'input'
]
action
=
thing
.
perform_action
(
action_name
,
input_
)
if
action
:
response
=
action
.
as_action_description
()
# Start the action
tornado
.
ioloop
.
IOLoop
.
current
().
spawn_callback
(
perform_action
,
action
,
)
self
.
set_status
(
201
)
self
.
write
(
json
.
dumps
(
response
))
else
:
self
.
set_status
(
400
)
class
ActionHandler
(
BaseHandler
):
"""Handle a request to /actions/<action_name>."""
def
get
(
self
,
thing_id
=
'0'
,
action_name
=
None
):
"""
Handle a GET request.
thing_id -- ID of the thing this request is for
action_name -- name of the action from the URL path
"""
thing
=
self
.
get_thing
(
thing_id
)
if
thing
is
None
:
self
.
set_status
(
404
)
return
self
.
set_header
(
'Content-Type'
,
'application/json'
)
self
.
write
(
json
.
dumps
(
thing
.
get_action_descriptions
(
action_name
=
action_name
)))
def
post
(
self
,
thing_id
=
'0'
,
action_name
=
None
):
"""
Handle a POST request.
thing_id -- ID of the thing this request is for
"""
thing
=
self
.
get_thing
(
thing_id
)
if
thing
is
None
:
self
.
set_status
(
404
)
return
try
:
message
=
json
.
loads
(
self
.
request
.
body
.
decode
())
except
ValueError
:
self
.
set_status
(
400
)
return
keys
=
list
(
message
.
keys
())
if
len
(
keys
)
!=
1
:
self
.
set_status
(
400
)
return
if
keys
[
0
]
!=
action_name
:
self
.
set_status
(
400
)
return
action_params
=
message
[
action_name
]
input_
=
None
if
'input'
in
action_params
:
input_
=
action_params
[
'input'
]
action
=
thing
.
perform_action
(
action_name
,
input_
)
if
action
:
response
=
action
.
as_action_description
()
# Start the action
tornado
.
ioloop
.
IOLoop
.
current
().
spawn_callback
(
perform_action
,
action
,
)
self
.
set_status
(
201
)
self
.
write
(
json
.
dumps
(
response
))
else
:
self
.
set_status
(
400
)
class
ActionIDHandler
(
BaseHandler
):
"""Handle a request to /actions/<action_name>/<action_id>."""
def
get
(
self
,
thing_id
=
'0'
,
action_name
=
None
,
action_id
=
None
):
"""
Handle a GET request.
thing_id -- ID of the thing this request is for
action_name -- name of the action from the URL path
action_id -- the action ID from the URL path
"""
thing
=
self
.
get_thing
(
thing_id
)
if
thing
is
None
:
self
.
set_status
(
404
)
return
action
=
thing
.
get_action
(
action_name
,
action_id
)
if
action
is
None
:
self
.
set_status
(
404
)
return
self
.
set_header
(
'Content-Type'
,
'application/json'
)
self
.
write
(
json
.
dumps
(
action
.
as_action_description
()))
def
put
(
self
,
thing_id
=
'0'
,
action_name
=
None
,
action_id
=
None
):
"""
Handle a PUT request.
TODO: this is not yet defined in the spec
thing_id -- ID of the thing this request is for
action_name -- name of the action from the URL path
action_id -- the action ID from the URL path
"""
thing
=
self
.
get_thing
(
thing_id
)
if
thing
is
None
:
self
.
set_status
(
404
)
return
self
.
set_status
(
200
)
def
delete
(
self
,
thing_id
=
'0'
,
action_name
=
None
,
action_id
=
None
):
"""
Handle a DELETE request.
thing_id -- ID of the thing this request is for
action_name -- name of the action from the URL path
action_id -- the action ID from the URL path
"""
thing
=
self
.
get_thing
(
thing_id
)
if
thing
is
None
:
self
.
set_status
(
404
)
return
if
thing
.
remove_action
(
action_name
,
action_id
):
self
.
set_status
(
204
)
else
:
self
.
set_status
(
404
)
class
EventsHandler
(
BaseHandler
):
"""Handle a request to /events."""
def
get
(
self
,
thing_id
=
'0'
):
"""
Handle a GET request.
thing_id -- ID of the thing this request is for
"""
thing
=
self
.
get_thing
(
thing_id
)
if
thing
is
None
:
self
.
set_status
(
404
)
return
self
.
set_header
(
'Content-Type'
,
'application/json'
)
self
.
write
(
json
.
dumps
(
thing
.
get_event_descriptions
()))
class
EventHandler
(
BaseHandler
):
"""Handle a request to /events/<event_name>."""
def
get
(
self
,
thing_id
=
'0'
,
event_name
=
None
):
"""
Handle a GET request.
thing_id -- ID of the thing this request is for
event_name -- name of the event from the URL path
"""
thing
=
self
.
get_thing
(
thing_id
)
if
thing
is
None
:
self
.
set_status
(
404
)
return
self
.
set_header
(
'Content-Type'
,
'application/json'
)
self
.
write
(
json
.
dumps
(
thing
.
get_event_descriptions
(
event_name
=
event_name
)))
class
WebThingServer
:
"""Server to represent a Web Thing over HTTP."""
def
__init__
(
self
,
things
,
port
=
80
,
hostname
=
None
,
ssl_options
=
None
,
additional_routes
=
None
,
base_path
=
''
,
disable_host_validation
=
False
):
"""
Initialize the WebThingServer.
For documentation on the additional route format, see:
https://www.tornadoweb.org/en/stable/web.html#tornado.web.Application
things -- things managed by this server -- should be of type
SingleThing or MultipleThings
port -- port to listen on (defaults to 80)
hostname -- Optional host name, i.e. mything.com
ssl_options -- dict of SSL options to pass to the tornado server
additional_routes -- list of additional routes to add to the server
base_path -- base URL path to use, rather than '/'
disable_host_validation -- whether or not to disable host validation --
note that this can lead to DNS rebinding
attacks
"""
self
.
things
=
things
self
.
name
=
things
.
get_name
()
self
.
port
=
port
self
.
hostname
=
hostname
self
.
base_path
=
base_path
.
rstrip
(
'/'
)
self
.
disable_host_validation
=
disable_host_validation
system_hostname
=
socket
.
gethostname
().
lower
()
self
.
hosts
=
[
'localhost'
,
'localhost:{}'
.
format
(
self
.
port
),
'{}.local'
.
format
(
system_hostname
),
'{}.local:{}'
.
format
(
system_hostname
,
self
.
port
),
]
for
address
in
get_addresses
():
self
.
hosts
.
extend
([
address
,
'{}:{}'
.
format
(
address
,
self
.
port
),
])
if
self
.
hostname
is
not
None
:
self
.
hostname
=
self
.
hostname
.
lower
()
self
.
hosts
.
extend
([
self
.
hostname
,
'{}:{}'
.
format
(
self
.
hostname
,
self
.
port
),
])
if
isinstance
(
self
.
things
,
MultipleThings
):
for
idx
,
thing
in
enumerate
(
self
.
things
.
get_things
()):
thing
.
set_href_prefix
(
'{}/{}'
.
format
(
self
.
base_path
,
idx
))
handlers
=
[
[
r'/?'
,
ThingsHandler
,
dict
(
things
=
self
.
things
,
hosts
=
self
.
hosts
,
disable_host_validation
=
self
.
disable_host_validation
,
),
],
[
r'/(?P<thing_id>\d+)/?'
,
ThingHandler
,
dict
(
things
=
self
.
things
,
hosts
=
self
.
hosts
,
disable_host_validation
=
self
.
disable_host_validation
,
),
],
[
r'/(?P<thing_id>\d+)/properties/?'
,
PropertiesHandler
,
dict
(
things
=
self
.
things
,
hosts
=
self
.
hosts
,
disable_host_validation
=
self
.
disable_host_validation
,
),
],
[
r'/(?P<thing_id>\d+)/properties/'
+
r'(?P<property_name>[^/]+)/?'
,
PropertyHandler
,
dict
(
things
=
self
.
things
,
hosts
=
self
.
hosts
,
disable_host_validation
=
self
.
disable_host_validation
,
),
],
[
r'/(?P<thing_id>\d+)/actions/?'
,
ActionsHandler
,
dict
(
things
=
self
.
things
,
hosts
=
self
.
hosts
,
disable_host_validation
=
self
.
disable_host_validation
,
),
],
[
r'/(?P<thing_id>\d+)/actions/(?P<action_name>[^/]+)/?'
,
ActionHandler
,
dict
(
things
=
self
.
things
,
hosts
=
self
.
hosts
,
disable_host_validation
=
self
.
disable_host_validation
,
),
],
[
r'/(?P<thing_id>\d+)/actions/'
+
r'(?P<action_name>[^/]+)/(?P<action_id>[^/]+)/?'
,
ActionIDHandler
,
dict
(
things
=
self
.
things
,
hosts
=
self
.
hosts
,
disable_host_validation
=
self
.
disable_host_validation
,
),
],
[
r'/(?P<thing_id>\d+)/events/?'
,
EventsHandler
,
dict
(
things
=
self
.
things
,
hosts
=
self
.
hosts
,
disable_host_validation
=
self
.
disable_host_validation
,
),
],
[
r'/(?P<thing_id>\d+)/events/(?P<event_name>[^/]+)/?'
,
EventHandler
,
dict
(
things
=
self
.
things
,
hosts
=
self
.
hosts
,
disable_host_validation
=
self
.
disable_host_validation
,
),
],
]
else
:
self
.
things
.
get_thing
().
set_href_prefix
(
self
.
base_path
)
handlers
=
[
[
r'/?'
,
ThingHandler
,
dict
(
things
=
self
.
things
,
hosts
=
self
.
hosts
,
disable_host_validation
=
self
.
disable_host_validation
,
),
],
[
r'/properties/?'
,
PropertiesHandler
,
dict
(
things
=
self
.
things
,
hosts
=
self
.
hosts
,
disable_host_validation
=
self
.
disable_host_validation
,
),
],
[
r'/properties/(?P<property_name>[^/]+)/?'
,
PropertyHandler
,
dict
(
things
=
self
.
things
,
hosts
=
self
.
hosts
,
disable_host_validation
=
self
.
disable_host_validation
,
),
],
[
r'/actions/?'
,
ActionsHandler
,
dict
(
things
=
self
.
things
,
hosts
=
self
.
hosts
,
disable_host_validation
=
self
.
disable_host_validation
,
),
],
[
r'/actions/(?P<action_name>[^/]+)/?'
,
ActionHandler
,
dict
(
things
=
self
.
things
,
hosts
=
self
.
hosts
,
disable_host_validation
=
self
.
disable_host_validation
,
),
],
[
r'/actions/(?P<action_name>[^/]+)/(?P<action_id>[^/]+)/?'
,
ActionIDHandler
,
dict
(
things
=
self
.
things
,
hosts
=
self
.
hosts
,
disable_host_validation
=
self
.
disable_host_validation
,
),
],
[
r'/events/?'
,
EventsHandler
,
dict
(
things
=
self
.
things
,
hosts
=
self
.
hosts
,
disable_host_validation
=
self
.
disable_host_validation
,
),
],
[
r'/events/(?P<event_name>[^/]+)/?'
,
EventHandler
,
dict
(
things
=
self
.
things
,
hosts
=
self
.
hosts
,
disable_host_validation
=
self
.
disable_host_validation
,
),
],
]
if
isinstance
(
additional_routes
,
list
):
handlers
=
additional_routes
+
handlers
if
self
.
base_path
:
for
h
in
handlers
:
h
[
0
]
=
self
.
base_path
+
h
[
0
]
self
.
app
=
tornado
.
web
.
Application
(
handlers
)
self
.
app
.
is_tls
=
ssl_options
is
not
None
self
.
server
=
tornado
.
httpserver
.
HTTPServer
(
self
.
app
,
ssl_options
=
ssl_options
)
def
start
(
self
):
"""Start listening for incoming connections."""
args
=
[
'_webthing._tcp.local.'
,
'{}._webthing._tcp.local.'
.
format
(
self
.
name
),
]
kwargs
=
{
'addresses'
: [
socket
.
inet_aton
(
get_ip
())],
'port'
:
self
.
port
,
'properties'
: {
'path'
:
'/'
,
},
'server'
:
'{}.local.'
.
format
(
socket
.
gethostname
()),
}
if
self
.
app
.
is_tls
:
kwargs
[
'properties'
][
'tls'
]
=
'1'
self
.
service_info
=
ServiceInfo
(
*
args
,
**
kwargs
)
self
.
zeroconf
=
Zeroconf
()
self
.
zeroconf
.
register_service
(
self
.
service_info
)
self
.
server
.
listen
(
self
.
port
)
tornado
.
ioloop
.
IOLoop
.
current
().
start
()
def
stop
(
self
):
"""Stop listening."""
self
.
zeroconf
.
unregister_service
(
self
.
service_info
)
self
.
zeroconf
.
close
()
self
.
server
.
stop
()
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