[mapserver-users] getting corrupted png with WMS request to mapserv CGI on command line

Wed May 27 07:53:46 PDT 2015

Hi Fabian,
yes, that's what I do (see below) and I re-checked again. Still the same
problem.
thx,renzo

On Wed, 27 May 2015 15:36:32 +0200, Fabian Schindler
<fabian.schindler at eox.at> wrote:
> Renzo,
> As far as I remember you have to remove the HTTP headers from the
> response (the first 2-4 lines or so) when you use mapserv -nh with OGC
> services.
> Regards,
> Fabian
> 
> On 27.05.15 13:02, Renzo Kottmann wrote:
>> nope. I tried IMAGEPATH "/tmp/" and IMAGEPATH "/tmp" both still
>> result in corrupt pngs. thx,renzo
>> 
>> On Wed, 27 May 2015 12:12:02 +0200, thomas bonfort 
>> <thomas.bonfort at gmail.com> wrote:
>>> IMAGEPATH /tmp/ should be changed to IMAGEPATH "/tmp/"
>>> 
>>> -- thomas
>>> 
>>> On 27 May 2015 at 11:47, Renzo Kottmann <rkottman at mpi-bremen.de>
>>> wrote:
>>>> Hi All,
>>>> 
>>>> I have installed mapserver 6.4.1 in a docker container based on
>>>> debian jessie (see dockerfile below)
>>>> 
>>>> If I run:
>>>> 
>>>> /usr/lib/cgi-bin/mapserv -nh
>>>> 
>>
"QUERY_STRING=EXCEPTIONS=application/vnd.ogc.se_inimage&REQUEST=GetMap&SERVICE=WMS&VERSION=1.1.1&map=/genes-mapserver/wms_test.map&SRS=EPSG:4326&BBOX=-180,-90,180,90&FORMAT=image/png&WIDTH=1080&HEIGHT=614&STYLES=&LAYERS=satellite_mod"
>>>>>
>> 
> /tmp/test.png
>>>> 
>>>> The png is corrupt and I can not open it with neither gimp nor
>>>> firefox.
>>>> 
>>>> 
>>>> However, I get valid pngs using the very same map file with
>>>> shp2img or mapserv -nh
>>>> 
>>
"QUERY_STRING=map=/genes-mapserver/wms_test.map&mode=map&layers=satellite_mod
>>>>
>> 
> .
>>>> 
>>>> 
>>>> Find below more details (mapserver version, exact command lines
>>>> I used and resulting debug logs, map file, and docker file)
>>>> 
>>>> 
>>>> I searched google, the mailing list archives, but nothing seems
>>>> to be similar to this problem. Therefore, any help is very much
>>>> appreciated :)
>>>> 
>>>> ciao, renzo
>>>> 
>>>> 
>>>> * Mapserver Version:
>>>> 
>>>> MapServer version 6.4.1 OUTPUT=GIF OUTPUT=PNG OUTPUT=JPEG
>>>> OUTPUT=KML SUPPORTS=PROJ SUPPORTS=GD SUPPORTS=AGG
>>>> SUPPORTS=FREETYPE SUPPORTS=CAIRO SUPPORTS=SVG_SYMBOLS
>>>> SUPPORTS=RSVG SUPPORTS=ICONV SUPPORTS=FRIBIDI
>>>> SUPPORTS=WMS_SERVER SUPPORTS=WMS_CLIENT SUPPORTS=WFS_SERVER
>>>> SUPPORTS=WFS_CLIENT SUPPORTS=WCS_SERVER SUPPORTS=SOS_SERVER
>>>> SUPPORTS=FASTCGI SUPPORTS=THREADS SUPPORTS=GEOS INPUT=JPEG
>>>> INPUT=POSTGIS INPUT=OGR INPUT=GDAL INPUT=SHAPEFILE
>>>> 
>>>> 
>>>> * Command lines
>>>> 
>>>> Generates valid png:
>>>> 
>>>> /usr/lib/cgi-bin/mapserv -nh
>>>> 
>>
"QUERY_STRING=map=/genes-mapserver/wms_test.map&mode=map&layers=satellite_mod"
>>>>>
>> 
> /tmp/test.png
>>>> 
>>>> shp2img --all_debug 2 -m /genes-mapserver/wms_test.map -o
>>>> /tmp/test.png
>>>> 
>>>> 
>>>> Generates invalid corrupt png:
>>>> 
>>>> /usr/lib/cgi-bin/mapserv -nh
>>>> 
>>
"QUERY_STRING=EXCEPTIONS=application/vnd.ogc.se_inimage&REQUEST=GetMap&SERVICE=WMS&VERSION=1.1.1&map=/genes-mapserver/wms_test.map&SRS=EPSG:4326&BBOX=-180,-90,180,90&FORMAT=image/png&WIDTH=1080&HEIGHT=614&STYLES=&LAYERS=satellite_mod"
>>>>>
>> 
> /tmp/test.png
>>>> 
>>>> 
>>>> 
>>>> * Log file (for all three runs in that order):
>>>> 
>>>> 
>>>> [Wed May 27 08:51:44 2015].475696 CGI Request 1 on process 79 
>>>> [Wed May 27 08:51:44 2015].476881 msDrawMap(): rendering using 
>>>> outputformat named png (AGG/PNG). [Wed May 27 08:51:44
>>>> 2015].476916 msDrawMap(): WMS/WFS set-up and query, 0.000s [Wed
>>>> May 27 08:51:44 2015].478222
>>>> msDrawRasterLayerLow(satellite_mod): entering. [Wed May 27
>>>> 08:51:45 2015].16608 msDrawMap(): Layer 0 (satellite_mod), 
>>>> 0.540s [Wed May 27 08:51:45 2015].16665 msDrawMap(): Drawing
>>>> Label Cache,
>> 0.000s
>>>> [Wed May 27 08:51:45 2015].16677 msDrawMap() total time:
>>>> 0.541s [Wed May 27 08:51:45 2015].38545 msSaveImage(stdout)
>>>> total time: 0.022s [Wed May 27 08:51:45 2015].38838 mapserv
>>>> request processing time (msLoadMap not incl.): 0.563s
>>>> 
>>>> [Wed May 27 08:56:29 2015].752703 msDrawMap(): rendering using 
>>>> outputformat named png (AGG/PNG). [Wed May 27 08:56:29
>>>> 2015].752820 msDrawMap(): WMS/WFS set-up and query, 0.000s [Wed
>>>> May 27 08:56:29 2015].754465
>>>> msDrawRasterLayerLow(satellite_mod): entering. [Wed May 27
>>>> 08:56:30 2015].295590 msDrawMap(): Layer 0 (satellite_mod), 
>>>> 0.543s [Wed May 27 08:56:30 2015].295664 msDrawMap(): Drawing
>>>> Label Cache, 0.000s [Wed May 27 08:56:30 2015].295684
>>>> msDrawMap() total time: 0.544s [Wed May 27 08:56:30
>>>> 2015].323794 msSaveImage(/tmp/test.png) total time: 0.028s
>>>> 
>>>> [Wed May 27 08:59:28 2015].995397 CGI Request 1 on process 82 
>>>> [Wed May 27 08:59:28 2015].995464 msWMSLoadGetMapParams():
>>>> enabling non-square pixels. [Wed May 27 08:59:28 2015].996733
>>>> msDrawMap(): kicking into non-square pixel preserving mode. 
>>>> [Wed May 27 08:59:28 2015].997595 msDrawMap(): rendering using 
>>>> outputformat named png (AGG/PNG). [Wed May 27 08:59:28
>>>> 2015].997614 msDrawMap(): WMS/WFS set-up and query, 0.000s [Wed
>>>> May 27 08:59:28 2015].998950
>>>> msDrawRasterLayerLow(satellite_mod): entering. [Wed May 27
>>>> 08:59:29 2015].651061 msDrawMap(): Layer 0 (satellite_mod), 
>>>> 0.653s [Wed May 27 08:59:29 2015].651143 msDrawMap(): Drawing
>>>> Label Cache, 0.000s [Wed May 27 08:59:29 2015].651167
>>>> msDrawMap() total time: 0.656s [Wed May 27 08:59:29
>>>> 2015].681373 msSaveImage(stdout) total time: 0.030s [Wed May 27
>>>> 08:59:29 2015].681769 mapserv request processing time 
>>>> (msLoadMap not incl.): 0.686s
>>>> 
>>>> 
>>>> * map file
>>>> 
>>>> 
>>>> MAP NAME "wms_test" STATUS ON EXTENT -180 -90 180 90 IMAGECOLOR
>>>> 210 210 210 IMAGETYPE png SIZE 1080 614 UNITS dd
>>>> 
>>>> CONFIG "MS_ERRORFILE" "/tmp/wms_test_error.txt" DEBUG 2
>>>> 
>>>> 
>>>> PROJECTION #this is WGS84 "init=epsg:4326" END
>>>> 
>>>> 
>>>> SYMBOLSET "etc/symbols.sym" FONTSET "etc/fonts/fonts.txt"
>>>> 
>>>> WEB IMAGEPATH /tmp/ IMAGEURL "/tmp/"
>>>> 
>>>> ERROR "/error.html" EMPTY "/no_result.html"
>>>> 
>>>> 
>>>> METADATA ### Enable WFS support "wms_title"           "wms
>>>> test" "wms_onlineresource"  "http://localhost/wms?" "wms_srs"
>>>> "EPSG:4326" "wms_enable_request"  "GetCapabilities GetMap
>>>> GetFeatureInfo GetLegendGraphic" "ows_enable_request"
>>>> "GetCapabilities GetMap GetFeatureInfo GetLegendGraphic" 
>>>> "ows_extent" "-180 -90 180 90" "wfs_title"           "wfs
>>>> test" #necessary for the WMS GetFeatureInfo request 
>>>> "WMS_FEATURE_INFO_MIME_TYPE" "text/html" END
>>>> 
>>>> END
>>>> 
>>>> LEGEND STATUS on KEYSIZE 10 10 LABEL SIZE 9 COLOR 0 0 0 TYPE
>>>> truetype ENCODING UTF-8 FONT sans FORCE false PARTIALS true 
>>>> POSITION AUTO END TEMPLATE "template/legend.html" # HTML
>>>> template file END
>>>> 
>>>> LAYER NAME satellite_mod
>>>> 
>>>> METADATA "wms_title"     "World Map Lite" "unit"
>>>> "false" END #end of wms metadata
>>>> 
>>>> DATA data/satelliteMod.png TYPE RASTER STATUS ON END #map end 
>>>> END
>>>> 
>>>> 
>>>> * Dockerfile
>>>> 
>>>> FROM debian:jessie
>>>> 
>>>> ENV GMS_DIR=/genes-mapserver ENV LANG C.UTF-8
>>>> 
>>>> # Update and upgrade system RUN apt-get -qq update
>>>> --fix-missing && \ apt-get install -y cgi-mapserver
>>>> mapserver-bin
>>>> 
>>>> 
>>>> RUN mkdir ${GMS_DIR}
>>>> 
>>>> VOLUME ${GMS_DIR}
>>>> 
>>>> ENTRYPOINT ["/usr/lib/cgi-bin/mapserv"]
>>>> 
>>>> 
>>>> The actual tests are done within the container by:
>>>> 
>>>> sudo docker run -v ~/src/genes-mapserver/:/genes-mapserver
>>>> --rm --entrypoint=/bin/bash -ti renzok/mapserver-cgi
>>>> 
>>>> 
>>>> thanks for reading :) 
>>>> _______________________________________________ mapserver-users
>>>> mailing list mapserver-users at lists.osgeo.org 
>>>> http://lists.osgeo.org/mailman/listinfo/mapserver-users
>> 
> 
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-- 
Renzo Kottmann PhD
Max Planck Institute for Marine Microbiology
Microbial Genomics and Bioinformatics Research Group
Celsiusstr. 1
28359 Bremen
Germany
Phone: +49 421 2028 974