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05.10.2018, 20:27
(This post was last modified: 05.10.2018, 20:35 by buuuudzik .)
My client has on his house HIKVision cameras and I am so impressed about its quality and also modern webserver and API. But it is fresh software so I must update my scripts to support such cameras. I found that I cannot download an image in same way as before in BCS cameras. I have right path:
http://username :password@ip_address:port/ISAPI/Streaming/channels/102/picture
and it's work perfectly on webbrowser but unfortunately not in script.
This is my script:
Code:
1 2 3 4
require (
'socket.http' )
local image1 =
socket.http.request (
'http://username:password@ip_address:port/ISAPI/Streaming/channels/102/picture' )
log (#
image1 )
And it logs that length of image1 is nil.
I've found this specification:
http://down.dipol.com.pl/Cctv/-Hikvision...ervice.pdf
I've had similar differences when I've tried get image from old BCS camera and new HIK by Postman app and I've figured out that on HIK cameras autentification must be set to Digest Auth. How can I do it in Lua?
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05.10.2018, 21:41
(This post was last modified: 05.10.2018, 21:47 by buuuudzik .)
Also I see that there is possibility to download uptodate list or have connection with camera and get notified when new event occured but it is not so easy to me. In node js all would be easy but how use this function in Lua?
http://www.ragingcomputer.com/2016/06/hi...ng-node-js
Perfect would if admin could give some short start guide how get the data(without parsing) like in nodejs:
https://github.com/ragingcomputer/node-h...kvision.js
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06.10.2018, 06:19
(This post was last modified: 06.10.2018, 06:19 by buuuudzik .)
(06.10.2018, 05:01) admin Wrote: https://forum.logicmachine.net/showthrea...64#pid9364
It works in local with http. I see that the library is not a 4 line code
Thanks
And what do you think admin about this alertStream?
I think this could be a very good option to integrate e.g. linedetection or facedetection from so sharp camera.
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Try this for alert stream:
Code:
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25
socket =
require (
'socket' )
mime =
require (
'mime' )
host =
'192.168.1.2'
port =
80
auth =
'user:password'
init =
'GET /ISAPI/Event/notification/alertStream HTTP/1.1\r\n' ..
'Host: ' ..
host ..
':' ..
port ..
'\r\n' ..
'Authorization: Basic ' ..
mime.b64 (
auth ) ..
'\r\n' ..
'Accept: multipart/x-mixed-replace\r\n\r\n'
sock =
socket.tcp ()
sock :
settimeout (
60 )
res ,
err =
sock :
connect (
host ,
port )
if res then
alert (
'connection ok' )
sock :
send (
init )
line ,
err =
sock :
receive (
'*l' )
log (
line ,
err )
else
alert (
'connection failed: ' ..
tostring (
err ))
end
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Today I will check for sure. Very thanks and this is really nice feature
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I have the info that module socket.mime not found
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Replace it with require('mime')
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This script should be in resident 0s? Now I have it in resident 10s and updated version returns in Alerts "connection failed: nil"
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I've updated the script, try again. Use a resident script with sleep time more than zero for testing, otherwise you might get too many alerts/logs.
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Now is unauthorized message:
Code:
1 2 3 4
*
arg :
1
*
string :
HTTP /
1.1 401 Unauthorized
*
arg :
2
*
nil
I'm sure I have right credentials
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Replace *l with *a and post the whole output.
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Below whole result:
Code:
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18
*
arg :
1
*
string :
HTTP /
1.1 401 Unauthorized
Date :
Tue ,
09 Oct 2018 19 :
29 :
04 GMT
Server :
App-webs /
Content-Length :
178
Content-Type :
text /
html
Connection :
close
WWW-Authenticate :
Digest qop =
"auth" ,
realm =
"IP Camera(13656)" ,
nonce =
"4e3245794d444a684f6a56684e47526b5a575179" ,
stale =
"FALSE"
<!
DOCTYPE html >
<
html ><
head ><
title >
Document Error :
Unauthorized </
title ></
head >
<
body ><
h2 >
Access Error :
401
<
p >
Authentication Error </
p >
</
body >
</
html >
*
arg :
2
*
nil
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This means that you need to use digest auth here as well. Considering the code complexity, writing any examples without access to the real device is like shooting in the dark, sorry.
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(10.10.2018, 10:22) admin Wrote:
Thanks for your efforts. I can give you an access to the real device via private message.
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Try this, change IP, port, user and pass as needed. If this works correctly, you should get xml payloads in Logs tab, otherwise errors will go to Alerts tab.
Code:
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136
require (
'socket' )
md5sum =
require (
'encdec' ).
md5
host =
'192.168.1.2'
port =
80
user =
'username'
pass =
'password'
uri =
'/ISAPI/Event/notification/alertStream'
function getheader (
resp ,
header )
local st ,
en
header =
header ..
'="'
st =
resp :
find (
header )
if st then
en =
resp :
find (
'"' ,
st + #
header )
if en then
return resp :
sub (
st + #
header ,
en -
1 )
end
end
end
function makedigestheader (
headers )
local digest = {}
for _ ,
header in ipairs (
headers )
do
if not header.unquote then
header [
2 ] =
'"' ..
header [
2 ] ..
'"'
end
digest [ #
digest +
1 ] =
header [
1 ] ..
'=' ..
header [
2 ]
end
return 'Digest ' ..
table.concat (
digest ,
', ' )
end
function hash (...)
return md5sum (
table.concat ({...},
':' ))
end
init = {
'GET ' ..
uri ..
' HTTP/1.1' ,
'Host: ' ..
host ,
'Accept: multipart/x-mixed-replace' ,
}
sock =
socket.tcp ()
sock :
settimeout (
60 )
res ,
err =
sock :
connect (
host ,
port )
if not res then
alert (
'init connection failed: ' ..
tostring (
err ))
return
end
sock :
send (
table.concat (
init ,
'\r\n' ) ..
'\r\n\r\n' )
resp ,
err =
sock :
receive (
'*a' )
sock :
close ()
if not resp then
alert (
'no response: ' ..
tostring (
err ))
return
end
realm =
getheader (
resp ,
'realm' )
nonce =
getheader (
resp ,
'nonce' )
if not realm or not nonce then
alert (
'no realm/nonce' )
return
end
nc =
'00000001'
cnonce =
string.format (
'%08x' ,
os.time ())
method =
'GET'
response =
hash (
hash (
user ,
realm ,
pass ),
nonce ,
nc ,
cnonce ,
'auth' ,
hash (
method ,
uri )
)
auth = {
{
'username' ,
user },
{
'realm' ,
realm },
{
'nonce' ,
nonce },
{
'uri' ,
uri },
{
'cnonce' ,
cnonce },
{
'nc' ,
nc ,
unquote =
true },
{
'qop' ,
'auth' },
{
'algorithm' ,
'MD5' },
{
'response' ,
response },
}
table.insert (
init ,
2 ,
'Authorization: ' ..
makedigestheader (
auth ))
sock =
socket.tcp ()
sock :
settimeout (
60 )
res ,
err =
sock :
connect (
host ,
port )
if not res then
alert (
'data connection failed: ' ..
tostring (
err ))
return
end
sock :
send (
table.concat (
init ,
'\r\n' ) ..
'\r\n\r\n' )
cl =
'Content-Length:'
while true do
line ,
err =
sock :
receive (
'*l' )
if line then
if line :
find (
cl ,
1 ,
true )
then
len =
tonumber (
line :
sub (#
cl +
1 ))
if len then
sock :
receive (
'*l' )
data ,
err =
sock :
receive (
len )
if data then
log (
data )
else
alert (
'data receive failed: ' ..
tostring (
err ))
end
end
end
else
alert (
'line receive failed: ' ..
tostring (
err ))
break
end
end
sock :
close ()
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It works I see such output:
Code:
1 2 3 4 5 6 7 8 9 10 11 12 13
*
string : <
EventNotificationAlert version =
"2.0" xmlns =
"http://www.hikvision.com/ver20/XMLSchema" >
<
ipAddress >
192.168.101.201 </
ipAddress >
<
portNo >
80 </
portNo >
<
protocol >
HTTP </
protocol >
<
macAddress >
aa :
bb :
cc :
dd :
ee :
ff </
macAddress >
<
channelID >
1 </
channelID >
<
dateTime >
2018 -
10 -
10T14 :
31 :
43 +
01 :
00 </
dateTime >
<
activePostCount >
0 </
activePostCount >
<
eventType >
videoloss </
eventType >
<
eventState >
inactive </
eventState >
<
eventDescription >
videoloss alarm </
eventDescription >
<
channelName >
K03 Podjazd </
channelName >
</
EventNotificationAlert >
I will find how to parse it. Thank you very much, you are very wise
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28.05.2020, 14:40
(This post was last modified: 28.05.2020, 14:45 by Alberto.ricof .)
Hello,
Attached Files Thumbnail(s)
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Hi,
You need to parse the XML data to get values from it, you can use the build in LuaExpat lib for that.
See this post for a sample how to use the lpx parser:
https://forum.logicmachine.net/showthrea...2#pid11472
BR,
Erwin
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(28.05.2020, 21:16) Erwin van der Zwart Wrote: https://forum.logicmachine.net/showthrea...2#pid11472
Thank you very much Erwin, it's just what i needed.
BR,
Alberto R.
Thanks