[gdal-dev] HTTP 401 error with WMS

Elena Ruiz eruiz at aplitop.com
Thu Apr 8 01:51:26 PDT 2021 

Hello, I trying a WMS web service with gdal, but I have different results depend on I use a url in a web browser or I use the gdal commands.
If I put this url in Crome:
https://wms.mapa.gob.es/sigpac/ows?FORMAT=image/jpeg&HEIGHT=99&LAYERS=EEPP&WIDTH=183&SERVICE=WMS&BBOX=413276.0389803443,4066482.0439935336,675346.7028941214,4208125.2305295570&REQUEST=GetMap&TRANSPARENT=FALSE&STYLES=&VERSION=1.3.0&CRS=EPSG:25830

I get an image:

[cid:image002.jpg at 01D72C65.1B877460]

But If I use the same parameters in a XML file, like as this:

<GDAL_WMS>
  <Service name="WMS">
    <Version>1.3.0</Version>
    <ServerUrl>https://wms.mapa.gob.es/sigpac/ows?SERVICE=WMS&username=&password=</ServerUrl>
    <Layers>EEPP</Layers>
    <CRS>EPSG:25830</CRS>
    <ImageFormat>image/jpeg</ImageFormat>
    <Transparent>FALSE</Transparent>
    <BBoxOrder>xyXY</BBoxOrder>
  </Service>
  <DataWindow>
    <UpperLeftX>413276.0389803443</UpperLeftX>
    <UpperLeftY>4208125.2305295570</UpperLeftY>
    <LowerRightX>675346.7028941214</LowerRightX>
    <LowerRightY>4066482.0439935336</LowerRightY>
    <SizeX>183</SizeX>
    <SizeY>99</SizeY>
  </DataWindow>
  <Timeout>1600</Timeout>
  <BandsCount>3</BandsCount>
  <BlockSizeX>1024</BlockSizeX>
  <BlockSizeY>1024</BlockSizeY>
  <OverviewCount>20</OverviewCount>
  <UserPwd>:</UserPwd>
  <UnsafeSSL>true</UnsafeSSL>
  <ZeroBlockHttpCodes></ZeroBlockHttpCodes>
</GDAL_WMS>


And then I run the next gdal command: gdal_translate -of JPEG -outsize 183 99 C:\Users\elena\AppData\Local\Temp\tmpnuevo.xml C:\Users\elena\AppData\Local\Temp\miimagen.jpeg
The result is :

Input file size is 183, 99
0ERROR 1: GDALWMS: Unable to download block 0, 0.
URL: <!doctype html><html lang="es"><head><title>Estado HTTP 401 ÔÇô No autorizado</title><style type="text/css">body {font-family:Tahoma,Arial,sans-serif;} h1, h2, h3, b {color:white;background-color:#525D76;} h1 {font-size:22px;} h2 {font-size:16px;} h3 {font-size:14px;} p {font-size:12px;} a {color:black;} .line {height:1px;background-color:#525D76;border:none;}</style></head><body><h1>Estado HTTP 401 ÔÇô No autorizado</h1><hr class="line" /><p><b>Tipo</b> Informe de estado</p><p><b>mensaje</b> Unauthorized</p><p><b>Descripci├│n</b> Este requerimiento requiere autenticaci├│n HTTP.</p><hr class="line" /><h3>Apache Tomcat/9.0.37</h3></body></html>
  HTTP status code: 401, error: <!doctype html><html lang="es"><head><title>Estado HTTP 401 ÔÇô No autorizado</title><style type="text/css">body {font-family:Tahoma,Arial,sans-serif;} h1, h2, h3, b {color:white;background-color:#525D76;} h1 {font-size:22px;} h2 {font-size:16px;} h3 {font-size:14px;} p {font-size:12px;} a {color:black;} .line {height:1px;background-color:#525D76;border:none;}</style></head><body><h1>Estado HTTP 401 ÔÇô No autorizado</h1><hr class="line" /><p><b>Tipo</b> Informe de estado</p><p><b>mensaje</b> Unauthorized</p><p><b>Descripci├│n</b> Este requerimiento requiere autenticaci├│n HTTP.</p><hr class="line" /><h3>Apache Tomcat/9.0.37</h3></body></html>.
Add the HTTP status code to <ZeroBlockHttpCodes> to ignore this error (see http://www.gdal.org/frmt_wms.html).
ERROR 1: C:\Users\elena\AppData\Local\Temp\tmpnuevo.xml, band 1: IReadBlock failed at X offset 0, Y offset 0: GDALWMS: Unable to download block 0, 0.
URL: <!doctype html><html lang="es"><head><title>Estado HTTP 401 ÔÇô No autorizado</title><style type="text/css">body {font-family:Tahoma,Arial,sans-serif;} h1, h2, h3, b {color:white;background-color:#525D76;} h1 {font-size:22px;} h2 {font-size:16px;} h3 {font-size:14px;} p {font-size:12px;} a {color:black;} .line {height:1px;background-color:#525D76;border:none;}</style></head><body><h1>Estado HTTP 401 ÔÇô No autorizado</h1><hr class="line" /><p><b>Tipo</b> Informe de estado</p><p><b>mensaje</b> Unauthorized</p><p><b>Descripci├│n</b> Este requerimiento requiere autenticaci├│n HTTP.</p><hr class="line" /><h3>Apache Tomcat/9.0.37</h3></body></html>
  HTTP status code: 401, error: <!doctype html><html lang="es"><head><title>Estado HTTP 401 ÔÇô No autorizado</title><style type="text/css">body {font-family:Tahoma,Arial,sans-serif;} h1, h2, h3, b {color:white;background-color:#525D76;} h1 {font-size:22px;} h2 {font-size:16px;} h3 {font-size:14px;} p {font-size:12px;} a {color:black;} .line {height:1px;background-color:#525D76;border:none;}</style></head><body><h1>Estado HTTP 401 ÔÇô No autorizado</h1><hr class="line" /><p><b>Tipo</b> Informe de estado</p><p><b>mensaje</b> Unauthorized</p><p><b>Descripci├│n</b> Este requerimiento requiere autenticaci├│n HTTP.</p><hr class="line" /><h3>Apache Tomcat/9.0.37</h3></body></html>.
Add the HTTP status code to <ZeroBlockHttpCodes> to ignore this error (see http://www.gdal.org/frmt_wms.html).

And there are not any image.
I´m using gdal 3.0, and I don´t understand why works at web browser and don´t works with gdal, I am doing something wrong? Thank you very much and regards
________________________________

[https://www.aplitop.com/descargas/firma1.jpg]


Elena Ruiz
Sofware Development & Technical Support
Tel. +34 952 43 97 71
eruiz at aplitop.com
Sumatra, 9 - 29190 Málaga (Spain)
www.aplitop.com

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