[Gdal-dev] Method to get a google image by url?

[Zhonghai Wang]

Hi Frank,

I must say it's so cool, you know, i compiled MapServer myself, and
just totally forgot the libcurl thing, now you pull me out of the
dark. Many thanks.

Best Regards

Zhonghai

On Nov 15, 2007 4:12 PM, Garrett Potts <potts at cfl.rr.com> wrote:
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> This is a cut and paste from the libcurl docs on setting a proxy through the
> environment if the program doesn't expose it for ya to set.
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> the environment variable is http_proxy and they describe the format of it
> here
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> Take care
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> Garrett
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> libcurl automatically checks and uses a set of environment variables to know
> what proxies to use for certain protocols. The names of the variables are
> following an ancient de facto standard and are built up as
> "[protocol]_proxy" (note the lower casing). Which makes the variable
> 'http_proxy' checked for a name of a proxy to use when the input URL is
> HTTP. Following the same rule, the variable named 'ftp_proxy' is checked for
> FTP URLs. Again, the proxies are always HTTP proxies, the different names of
> the variables simply allows different HTTP proxies to be used.
>
> The proxy environment variable contents should be in the format
> "[protocol://][user:password@]machine[:port]". Where the protocol:// part is
> simply ignored if present (so http://proxy and bluerk://proxy will do the
> same) and the optional port number specifies on which port the proxy
> operates on the host. If not specified, the internal default port number
> will be used and that is most likely *not* the one you would like it to be.
>
> There are two special environment variables. 'all_proxy' is what sets proxy
> for any URL in case the protocol specific variable wasn't set, and
> 'no_proxy' defines a list of hosts that should not use a proxy even though a
> variable may say so. If 'no_proxy' is a plain asterisk ("*") it matches all
> hosts.
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> To explicitly disable libcurl's checking for and using the proxy environment
> variables, set the proxy name to "" - an empty string - with CURLOPT_PROXY.
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> http://curl.haxx.se/libcurl/c/libcurl-tutorial.html
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