Skip to content
Projects
Groups
Snippets
Help
Loading...
Help
Support
Keyboard shortcuts
?
Submit feedback
Contribute to GitLab
Sign in / Register
Toggle navigation
osie
Project overview
Project overview
Details
Activity
Releases
Repository
Repository
Files
Commits
Branches
Tags
Contributors
Graph
Compare
Issues
0
Issues
0
List
Boards
Labels
Milestones
Merge Requests
0
Merge Requests
0
CI / CD
CI / CD
Pipelines
Jobs
Schedules
Analytics
Analytics
CI / CD
Repository
Value Stream
Wiki
Wiki
Snippets
Snippets
Members
Members
Collapse sidebar
Close sidebar
Activity
Graph
Create a new issue
Jobs
Commits
Issue Boards
Open sidebar
nexedi
osie
Commits
1d06b719
Commit
1d06b719
authored
Jul 27, 2023
by
Ivan Tyagov
Browse files
Options
Browse Files
Download
Email Patches
Plain Diff
Initial import of Levin's work.
parent
2e0960ca
Changes
1
Hide whitespace changes
Inline
Side-by-side
Showing
1 changed file
with
88 additions
and
0 deletions
+88
-0
opcua-to-http-gw/opcua-to-http-gw.py
opcua-to-http-gw/opcua-to-http-gw.py
+88
-0
No files found.
opcua-to-http-gw/opcua-to-http-gw.py
0 → 100755
View file @
1d06b719
#!//usr/bin/python
"""
Basic OPC UA <-> HTTP gateway server.
"""
import
sys
import
asyncio
import
asyncua
from
dataclasses
import
dataclass
,
field
import
json
import
requests
import
urllib
import
argparse
import
logging
# #################################
# Configure
parser
=
argparse
.
ArgumentParser
(
description
=
'Run OPCUA Server.'
)
a
=
parser
.
add_argument
a
(
'--ip'
,
help
=
'The IP address on which the OPCUA Server runs'
,
default
=
"127.0.0.1"
)
a
(
'--port'
,
help
=
'The port on which the OPCUA Server runs'
,
default
=
"4840"
)
a
(
'--xml'
,
help
=
'Path of XML to configure Server. See asyncua doc for more details.'
,
default
=
None
)
a
(
'--erp5-ip'
,
help
=
'IP of ERP5 instance to which data shall be send.'
,
default
=
None
)
a
(
'--erp5-port'
,
help
=
'Port of ERP5 instance to which data shall be send.'
,
default
=
None
)
args
=
parser
.
parse_args
()
ip
,
port
,
xml
,
erp5_ip
,
erp5_port
=
args
.
ip
,
args
.
port
,
args
.
xml
,
args
.
erp5_ip
,
args
.
erp5_port
# #################################
# Define ERP5Handler
@
dataclass
(
frozen
=
True
)
class
ERP5Handler
(
asyncua
.
common
.
subscription
.
SubHandler
):
ip
:
str
port
:
str
session
:
requests
.
Session
=
field
(
default_factory
=
requests
.
Session
)
@
property
def
uri
(
self
):
return
f"http://
{
self
.
ip
}
:
{
self
.
port
}
/erp5/opcua_test"
def
call
(
self
,
**
data
):
params
=
urllib
.
parse
.
quote_plus
(
json
.
dumps
({
k
:
str
(
v
)
for
k
,
v
in
data
.
items
()}))
self
.
session
.
post
(
f"
{
self
.
uri
}
?data=
{
params
}
"
)
def
datachange_notification
(
self
,
node
,
val
,
data
):
self
.
call
(
node
=
node
,
val
=
val
,
data
=
data
)
def
event_notification
(
self
,
event
):
self
.
call
(
event
=
event
)
erp5_handler
=
None
if
erp5_ip
is
not
None
and
erp5_port
is
not
None
:
erp5_handler
=
ERP5Handler
(
erp5_ip
,
erp5_port
)
class
InternalSession
(
asyncua
.
server
.
internal_session
.
InternalSession
):
async
def
read
(
self
,
params
):
erp5_handler
.
call
(
params
=
params
)
return
await
super
().
read
(
params
)
# #################################
# Start OPCUA Server
async
def
main
():
_logger
=
logging
.
getLogger
(
__name__
)
# setup our server
server
=
asyncua
.
Server
()
await
server
.
init
()
server
.
set_endpoint
(
f"opc.tcp://
{
ip
}
:
{
port
}
/freeopcua/server/"
)
if
xml
is
not
None
:
await
server
.
import_xml
(
xml
)
if
erp5_handler
:
subscription
=
await
server
.
create_subscription
(
1000
,
erp5_handler
)
await
subscription
.
subscribe_events
()
nodes
=
await
asyncua
.
common
.
ua_utils
.
get_nodes_of_namespace
(
server
)
await
subscription
.
subscribe_data_change
(
nodes
)
def
create_session
(
name
,
user
=
asyncua
.
server
.
users
.
User
(
role
=
asyncua
.
server
.
users
.
UserRole
.
Anonymous
),
external
=
False
):
self
=
server
.
iserver
return
InternalSession
(
self
,
self
.
aspace
,
self
.
subscription_service
,
name
,
user
=
user
,
external
=
external
)
server
.
iserver
.
create_session
=
create_session
_logger
.
info
(
"Added subscription for erp5 handler."
)
_logger
.
info
(
"Starting server!"
)
async
with
server
:
while
True
:
await
asyncio
.
sleep
(
1
)
logging
.
basicConfig
(
level
=
logging
.
DEBUG
)
asyncio
.
run
(
main
(),
debug
=
True
)
import
__main__
if
__name__
==
'__main__'
:
sys
.
exit
(
__main__
.
main
())
Write
Preview
Markdown
is supported
0%
Try again
or
attach a new file
Attach a file
Cancel
You are about to add
0
people
to the discussion. Proceed with caution.
Finish editing this message first!
Cancel
Please
register
or
sign in
to comment