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<p class="MsoNormal">Hi,<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><span lang="EN-US">Have a look at <a href="https://gis.stackexchange.com/questions/326773/importing-shapefile-from-website-if-download-link-is-compressed-file/326778">
https://gis.stackexchange.com/questions/326773/importing-shapefile-from-website-if-download-link-is-compressed-file/326778</a><o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">I tried what happens with command<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">ogrinfo /vsizip/vsicurl/https://www2.census.gov/geo/tiger/GENZ2010/gz_2010_36_620_l2_500k.zip --debug on<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">HTTP: libcurl/7.37.1 OpenSSL/1.0.1h zlib/1.2.3<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">VSICURL: GetFileSize(https://www2.census.gov/geo/tiger/GENZ2010/gz_2010_36_620_l2_500k.zip)=0 response_code=200<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">VSICURL: Request at offset 0, after end of file<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">VSICURL: Request at offset 0, after end of file<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">VSICURL: Request at offset 0, after end of file<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">… repeats about 130 times <o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">FAILURE:<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">Unable to open datasource `/vsizip/vsicurl/https://www2.census.gov/geo/tiger/GENZ2010/gz_2010_36_620_l2_500k.zip' with the following drivers.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">Does this mean that www2.census.gov supports HEAD request but it does not send the file size header, or the value of file size is 0? Perhaps vsicurl could catch this and show a meaningful message?<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">-Jukka Rahkonen-<o:p></o:p></span></p>
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