Comments (7)
psyciknz
commented on August 15, 2024
Hello, I use a dahua nvr, and where an http call to snapshot.cgi used to work (yes with digest authentication) on an older nvr, I have now replaced it, and the api seems quite different. There was also a call for ConfigManager.cgi&getConfig?name=ChannelTitle that also now fails....but I found in fiddler that there is an RPC2 call that is made now with json that replicates this function, eg:
'{"method":"configManager.getConfig","params":{"name":"ChannelTitle"},"id":51,"session":135423203,"params2":"000001bc3115e090000017d2"}' http://nvrip/RPC2
Hoping that someone might be interested in working on this, as is may be similar for the snapshot call, that may have moved to the rpc2 method also.....
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pnbruckner
commented on August 15, 2024
I suspect the issues seen here and on #86 have been fixed by HA PRs 21664 & 21720 and amcrest release 1.2.5. FWIW, my camera has version=2.400.AC02.15.R, build:2017-07-31, and it works fine with the above PRs.
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tchellomello
commented on August 15, 2024
Hello,
Issue #86
Here is a small snippet using the latest code in master.
93% 2019-03-10 22:48:33 ⌚ p50 in ~/devel/python-amcrest/cli
± |master → origin ✓| → for cam in $(seq 6); do echo "amcrestcam$cam";
./amcrest-cli --camera amcrestcam$cam --device-type; ./amcrest-cli --camera
amcrestcam$cam --snapshot 1 --save ~/Desktop/image$cam.jpg; file
~/Desktop/image$cam.jpg; ./amcrest-cli --camera amcrestcam$cam
--software-information ; echo "===============" ; done
amcrestcam1
type=IP3M-941W
/home/mdemello/Desktop/image1.jpg: JPEG image data, JFIF standard 1.01, aspect
ratio, density 1x1, segment length 16, comment: "", comment: "DHAV\373",
baseline, precision 8, 1280x960, frames 3
('version=2.520.AC00.18.R', 'build:2017-06-29\r\n')
===============
amcrestcam2
type=IP2M-841W
/home/mdemello/Desktop/image2.jpg: JPEG image data, JFIF standard 1.01, aspect
ratio, density 1x1, segment length 16, comment: "", comment: "DHAV\373",
baseline, precision 8, 1920x1080, frames 3
('version=2.520.AC00.18.R', 'build:2017-06-29\r\n')
===============
amcrestcam3
type=IPM-723W
Trying again due to error 401 Client Error: Unauthorized for url:
http://amcrestcam3.tatu.home:80/cgi-bin/snapshot.cgi?channel=1
Trying again due to error 401 Client Error: Unauthorized for url:
http://amcrestcam3.tatu.home:80/cgi-bin/snapshot.cgi?channel=1
Trying again due to error 401 Client Error: Unauthorized for url:
http://amcrestcam3.tatu.home:80/cgi-bin/snapshot.cgi?channel=1
Query failed due to error 401 Client Error: Unauthorized for url:
http://amcrestcam3.tatu.home:80/cgi-bin/snapshot.cgi?channel=1
Traceback (most recent call last):
File "./amcrest-cli", line 907, in <module>
main()
File "./amcrest-cli", line 898, in main
camera.snapshot(args.snapshot_option, args.save)
File
"/home/mdemello/.virtualenvs/amcrest_dev/local/lib/python3.7/site-packages/
amcrest/snapshot.py", line 48, in snapshot
timeout_cmd=timeout
File
"/home/mdemello/.virtualenvs/amcrest_dev/local/lib/python3.7/site-packages/
amcrest/http.py", line 148, in command
resp.raise_for_status()
File
"/home/mdemello/.virtualenvs/amcrest_dev/local/lib/python3.7/site-packages/
requests/models.py", line 940, in raise_for_status
raise HTTPError(http_error_msg, response=self)
requests.exceptions.HTTPError: 401 Client Error: Unauthorized for url:
http://amcrestcam3.tatu.home:80/cgi-bin/snapshot.cgi?channel=1
/home/mdemello/Desktop/image3.jpg: cannot open
`/home/mdemello/Desktop/image3.jpg' (No such file or directory)
('version=2.400.AC02.15.R', 'build:2017-07-31\r\n')
===============
amcrestcam4
type=IPM-723W
Trying again due to error 401 Client Error: Unauthorized for url:
http://amcrestcam4.tatu.home:80/cgi-bin/snapshot.cgi?channel=1
Trying again due to error 401 Client Error: Unauthorized for url:
http://amcrestcam4.tatu.home:80/cgi-bin/snapshot.cgi?channel=1
Trying again due to error 401 Client Error: Unauthorized for url:
http://amcrestcam4.tatu.home:80/cgi-bin/snapshot.cgi?channel=1
Query failed due to error 401 Client Error: Unauthorized for url:
http://amcrestcam4.tatu.home:80/cgi-bin/snapshot.cgi?channel=1
Traceback (most recent call last):
File "./amcrest-cli", line 907, in <module>
main()
File "./amcrest-cli", line 898, in main
camera.snapshot(args.snapshot_option, args.save)
File
"/home/mdemello/.virtualenvs/amcrest_dev/local/lib/python3.7/site-packages/
amcrest/snapshot.py", line 48, in snapshot
timeout_cmd=timeout
File
"/home/mdemello/.virtualenvs/amcrest_dev/local/lib/python3.7/site-packages/
amcrest/http.py", line 148, in command
resp.raise_for_status()
File
"/home/mdemello/.virtualenvs/amcrest_dev/local/lib/python3.7/site-packages/
requests/models.py", line 940, in raise_for_status
raise HTTPError(http_error_msg, response=self)
requests.exceptions.HTTPError: 401 Client Error: Unauthorized for url:
http://amcrestcam4.tatu.home:80/cgi-bin/snapshot.cgi?channel=1
/home/mdemello/Desktop/image4.jpg: cannot open
`/home/mdemello/Desktop/image4.jpg' (No such file or directory)
('version=2.400.AC02.15.R', 'build:2017-07-31\r\n')
===============
amcrestcam5
type=IP3M-941B
/home/mdemello/Desktop/image5.jpg: JPEG image data, JFIF standard 1.01, aspect
ratio, density 1x1, segment length 16, comment: "", comment: "DHAV\373",
baseline, precision 8, 1280x960, frames 3
('version=2.520.AC00.18.R', 'build:2017-06-29\r\n')
===============
amcrestcam6
type=IP3M-941W
/home/mdemello/Desktop/image6.jpg: JPEG image data, JFIF standard 1.01, aspect
ratio, density 1x1, segment length 16, comment: "", comment: "DHAV\373",
baseline, precision 8, 1280x960, frames 3
('version=2.520.AC00.18.R', 'build:2017-06-29\r\n')
===============
So in summary:
worked
type=IP3M-941W - ('version=2.520.AC00.18.R', 'build:2017-06-29\r\n')
type=IP2M-841W - ('version=2.520.AC00.18.R', 'build:2017-06-29\r\n')
type=IP3M-941B - ('version=2.520.AC00.18.R', 'build:2017-06-29\r\n')
type=IP3M-941W - ('version=2.520.AC00.18.R', 'build:2017-06-29\r\n')
failed
type=IPM-723W - ('version=2.400.AC02.15.R', 'build:2017-07-31\r\n')
type=IPM-723W - ('version=2.400.AC02.15.R', 'build:2017-07-31\r\n')
My problem is even if I overwrite the code use Digest, I get the 500 error.
48 auth = HTTPDigestAuth(self._user, self._password)
49 ret = requests.get(
50
'http://amcrestcam3.tatu.home:80/cgi-bin/snapshot.cgi?channel=0',
51 auth=auth,
52 stream=True)
53 import rpdb; rpdb.set_trace()
! ~/d/python-amcrest * src telnet localhost 4444
Sun 10 Mar 2019 11:04:55 PM EDT
Trying 127.0.0.1...
Connected to localhost.
Escape character is '^]'.
> /home/mdemello/devel/python-amcrest/src/amcrest/snapshot.py(59)snapshot()
-> if path_file:
(Pdb) l
54 #ret = self.command(
55 # "snapshot.cgi?channel={0}".format(channel),
56 # timeout_cmd=timeout
57 #)
58
59 -> if path_file:
60 with open(path_file, 'wb') as out_file:
61 shutil.copyfileobj(ret.raw, out_file)
62
63 return ret.raw
[EOF]
(Pdb) ret
<Response [500]>@pnbruckner , can you try that on yours?
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tchellomello
commented on August 15, 2024
@pnbruckner using the latest merged #108 still the same problem on my camera. Maybe is something with my camera.
In [3]: cam.snapshot(0, '/home/mdemello/Desktop/aa.jpg')
Trying again due to error 401 Client Error: Unauthorized for url: http://amcrestcam3.tatu.home:80/cgi-bin/snapshot.cgi?channel=0
Trying again due to error 401 Client Error: Unauthorized for url: http://amcrestcam3.tatu.home:80/cgi-bin/snapshot.cgi?channel=0
Trying again due to error 401 Client Error: Unauthorized for url: http://amcrestcam3.tatu.home:80/cgi-bin/snapshot.cgi?channel=0
Query failed due to error 401 Client Error: Unauthorized for url: http://amcrestcam3.tatu.home:80/cgi-bin/snapshot.cgi?channel=0
---------------------------------------------------------------------------
HTTPError Traceback (most recent call last)
~/devel/python-amcrest/src/amcrest/http.py in command(self, cmd, retries, timeout_cmd)
150 )
--> 151 resp.raise_for_status()
152 break
~/.virtualenvs/amcrest_dev/local/lib/python3.7/site-packages/requests/models.py in raise_for_status(self)
939 if http_error_msg:
--> 940 raise HTTPError(http_error_msg, response=self)
941
HTTPError: 401 Client Error: Unauthorized for url: http://amcrestcam3.tatu.home:80/cgi-bin/snapshot.cgi?channel=0
During handling of the above exception, another exception occurred:
CommError Traceback (most recent call last)
<ipython-input-3-aa0e95b3b8e8> in <module>
----> 1 cam.snapshot(0, '/home/mdemello/Desktop/aa.jpg')
~/devel/python-amcrest/src/amcrest/snapshot.py in snapshot(self, channel, path_file, timeout)
46 ret = self.command(
47 "snapshot.cgi?channel={0}".format(channel),
---> 48 timeout_cmd=timeout
49 )
50
~/devel/python-amcrest/src/amcrest/http.py in command(self, cmd, retries, timeout_cmd)
157 else:
158 _LOGGER.error("Query failed due to error %s", error)
--> 159 raise CommError('Could not communicate with camera')
160
161 _LOGGER.debug("Query worked. Exit code: <%s>", resp.status_code)
CommError: Could not communicate with camera
from python-amcrest.
pnbruckner
commented on August 15, 2024
Using the latest code on master, I could grab snapshots (channels 0 & 1) from both of my cameras. Here is what I did:
(amcrest-test) phil@ha-intel:~/amcrest-test$ ~/repos/python-amcrest/cli/amcrest-cli --camera cam1 --device-type; ~/repos/python-amcrest/cli/amcrest-cli --camera cam1 --software-information; ~/repos/python-amcrest/cli/amcrest-cli --camera cam1 --snapshot 0 --save ~/Pictures/img1-0.jpg; file ~/Pictures/img1-0.jpg
type=IP2M-841W
('version=2.520.AC00.18.R', 'build:2017-06-29\r\n')
/home/phil/Pictures/img1-0.jpg: JPEG image data, JFIF standard 1.01, aspect ratio, density 1x1, segment length 16, comment: "", comment: "DHAV\373", baseline, precision 8, 1920x1080, frames 3
(amcrest-test) phil@ha-intel:~/amcrest-test$ ~/repos/python-amcrest/cli/amcrest-cli --camera cam2 --device-type; ~/repos/python-amcrest/cli/amcrest-cli --camera cam2 --software-information; ~/repos/python-amcrest/cli/amcrest-cli --camera cam2 --snapshot 0 --save ~/Pictures/img2-0.jpg; file ~/Pictures/img2-0.jpg
type=IP3M-943W
('version=2.400.AC02.15.R', 'build:2017-07-31\r\n')
/home/phil/Pictures/img2-0.jpg: JPEG image data, JFIF standard 1.01, aspect ratio, density 1x1, segment length 16, comment: "", comment: "DHAV\373", baseline, precision 8, 2304x1296, frames 3
(amcrest-test) phil@ha-intel:~/amcrest-test$ ~/repos/python-amcrest/cli/amcrest-cli --camera cam1 --device-type; ~/repos/python-amcrest/cli/amcrest-cli --camera cam1 --software-information; ~/repos/python-amcrest/cli/amcrest-cli --camera cam1 --snapshot 1 --save ~/Pictures/img1-1.jpg; file ~/Pictures/img1-1.jpg
type=IP2M-841W
('version=2.520.AC00.18.R', 'build:2017-06-29\r\n')
/home/phil/Pictures/img1-1.jpg: JPEG image data, JFIF standard 1.01, aspect ratio, density 1x1, segment length 16, comment: "", comment: "DHAV\373", baseline, precision 8, 1920x1080, frames 3
(amcrest-test) phil@ha-intel:~/amcrest-test$ ~/repos/python-amcrest/cli/amcrest-cli --camera cam2 --device-type; ~/repos/python-amcrest/cli/amcrest-cli --camera cam2 --software-information; ~/repos/python-amcrest/cli/amcrest-cli --camera cam2 --snapshot 1 --save ~/Pictures/img2-1.jpg; file ~/Pictures/img2-1.jpg
type=IP3M-943W
('version=2.400.AC02.15.R', 'build:2017-07-31\r\n')
/home/phil/Pictures/img2-1.jpg: JPEG image data, JFIF standard 1.01, aspect ratio, density 1x1, segment length 16, comment: "", comment: "DHAV\373", baseline, precision 8, 2304x1296, frames 3
from python-amcrest.
pnbruckner
commented on August 15, 2024
Of course, if I shut the stream off, then:
(amcrest-test) phil@ha-intel:~/amcrest-test$ ~/repos/python-amcrest/cli/amcrest-cli --camera cam1 --device-type; ~/repos/python-amcrest/cli/amcrest-cli --camera cam1 --software-information; ~/repos/python-amcrest/cli/amcrest-cli --camera cam1 --snapshot 0 --save ~/Pictures/img1-0.jpg; file ~/Pictures/img1-0.jpg
type=IP2M-841W
('version=2.520.AC00.18.R', 'build:2017-06-29\r\n')
Trying again due to error 401 Client Error: Unauthorized for url: http://pnb.duckdns.org:10002/cgi-bin/snapshot.cgi?channel=0
Trying again due to error 401 Client Error: Unauthorized for url: http://pnb.duckdns.org:10002/cgi-bin/snapshot.cgi?channel=0
Trying again due to error 401 Client Error: Unauthorized for url: http://pnb.duckdns.org:10002/cgi-bin/snapshot.cgi?channel=0
Query failed due to error 401 Client Error: Unauthorized for url: http://pnb.duckdns.org:10002/cgi-bin/snapshot.cgi?channel=0
Traceback (most recent call last):
File "/home/phil/repos/python-amcrest/src/amcrest/http.py", line 151, in command
resp.raise_for_status()
File "/home/phil/amcrest-test/lib/python3.6/site-packages/requests/models.py", line 940, in raise_for_status
raise HTTPError(http_error_msg, response=self)
requests.exceptions.HTTPError: 401 Client Error: Unauthorized for url: http://pnb.duckdns.org:10002/cgi-bin/snapshot.cgi?channel=0
During handling of the above exception, another exception occurred:
Traceback (most recent call last):
File "/home/phil/repos/python-amcrest/cli/amcrest-cli", line 907, in <module>
main()
File "/home/phil/repos/python-amcrest/cli/amcrest-cli", line 898, in main
camera.snapshot(args.snapshot_option, args.save)
File "/home/phil/repos/python-amcrest/src/amcrest/snapshot.py", line 48, in snapshot
timeout_cmd=timeout
File "/home/phil/repos/python-amcrest/src/amcrest/http.py", line 159, in command
raise CommError('Could not communicate with camera')
amcrest.exceptions.CommError: Could not communicate with camera
/home/phil/Pictures/img1-0.jpg: cannot open `/home/phil/Pictures/img1-0.jpg' (No such file or directory)
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pnbruckner
commented on August 15, 2024
The 1.5.1 release just made should fix these incorrect reports of error 401. However, if the snapshot command doesn't work, there will just be a more reasonable error, which is a connection error. There are two reasons I know of why a snapshot command will fail. The first is trying to issue two snapshot commands simultaneously, e.g., from two different hosts. The one that starts first should succeed, but the second may result in a "connection closed with no response" type error. The other is if the snapshot quality is too high. This I believe can cause an error 500.
Since this issue is fairly old, and there have been several updates to this package, as well as the HA amcrest component, I'm going to close this issue. Feel free to reopen if necessary.
BTW, I'm also working on a new HA amcrest component release that should significantly improve its overall error handling, especially if/when the camera goes "off line."
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