[MapProxy] Image processing error

[Lukas Macur]

Hello, I believe the problem is on source site, that is not working
http://mpp.praha.eu/arcgis/services/DTMP/DTMP/MapServer/WMSServer
http://mpp.praha.eu
<http://mpp.praha.eu/arcgis/services/DTMP/DTMP/MapServer/WMSServer> - is
working, but the arcgis server services are not ok (
http://mpp.praha.eu/arcgis/services
<http://mpp.praha.eu/arcgis/services/DTMP/DTMP/MapServer/WMSServer>).

Regards,
LM


út 6. 11. 2018 v 13:42 odesílatel David Pavlíček <pavlicek.david at gmail.com>
napsal:

> Hi,
> did you solve that Issue? I'm experiencing pretty much the same problem.
> Our MapProxy yesterday starts to respond with: "error while processing
> image file: cannot identify image file <mapproxy.image.ReadBufWrapper
> object at 0x7f67d86e6c10>
>
> I reduce the config to simplest one possible, but with no luck. Error is
> still there. Our config is as follows:
>
> services:
>   demo:
>   wms:
>     srs: ['EPSG:5514']
> sources:
>   dtm_praha:
>     type: wms
>     req:
>       url:
> http://mpp.praha.eu/arcgis/services/DTMP/DTMP/MapServer/WMSServer?
>       transparent: true
>       layers: 0,1,2,3
>
> layers:
>   - name: DTMP
>     title: DTMP
>     sources: [dtm_praha]
> globals:
>   image:
>     resampling_method: bilinear
>
> We are running MapProxy under Apache2 on Debian Linux behind HTTP proxy.
> Packages up to date. I also try to run developlment server with that
> config. And output is:
>
> [2018-11-06 13:21:31,681] mapproxy.source.request - INFO - GET
> http://mpp.praha.eu/arcgis/services/DTMP/DTMP/MapServer/WMSServer?styles=&format=image%2Fpng&height=899&bbox=-749443.5125,-1052941.0375,-749412.1875,-1052918.5625&transparent=True&layers=0,1,2,3&service=WMS&srs=EPSG%3A5514&request=GetMap&width=1253&version=1.1.1
> 200 10.0 330
> [2018-11-06 13:21:31,689] mapproxy.image - DEBUG - converting image from
> ImageOptions(encoding_options={}, resampling='bilinear', transparent=True)
> -> ImageOptions(bgcolor='#ffffff', colors=256, encoding_options={},
> format='image/png', resampling='bilinear', transparent=True)
> [2018-11-06 13:21:31,689] mapproxy.image - DEBUG -
> file(<mapproxy.image.ReadBufWrapper object at 0x7f67d86e6c10>) -> image
> [info] 10.144.35.192 - - [06/Nov/2018 13:21:31] "GET
> /wms?SERVICE=WMS&VERSION=1.3.0&REQUEST=GetMap&FORMAT=image/png&TRANSPARENT=true&LAYERS=DTMP&CRS=EPSG%3A5514&STYLES=&WIDTH=1253&HEIGHT=899&BBOX=-749443.5125000001%2C-1052941.0375%2C-749412.1875000001%2C-1052918.5625
> HTTP/1.1" 200 -
>
> But WMS response contains no image, only XML describing error mentioned
> above.
>
> Any advices?
>
> st 4. 7. 2018 v 15:32 odesílatel Sebastijan Sekulić <
> sebastijan.sekulic at gmail.com> napsal:
>
>> Hi,
>> so I am trying to add a WMS source to my MapProxy, but on the demo page,
>> I get an error.
>> Error while processing image file: cannot identify image file
>> <mapproxy.imageReadBufWrapper objerct at 0x7fbed4360f50>.
>>
>> I have tracked the error to Line 153 in wms.py (It stops at result_bf =
>> result.as_buffer(img_opts)), if that helps. I think it should be something
>> with pillow having a problem with the image format, but I don't have
>> expertise in that.
>>
>> I don't get any console outputs except request (no errors).
>>
>> If I make a request with postman or with requests, it renders and
>> downloads properly. The image format is png8, and I am using MapProxy 1.11
>> on Ubuntu.
>>
>> If you need .yaml and request, I can provide as a download link or send
>> privately, as I don't want to expose source links.
>>
>> Thanks,
>> Seb.
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>
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