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cURL Varnish bindings by Varnish Software
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Latest commit 517056f May 24, 2016 @fgsch fgsch Move the sub-second timeout tests to a new vtc
Related to #36.

README.rst

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This vmod provides cURL bindings for Varnish so you can use Varnish as an HTTP client and fetch headers and bodies from backends.

WARNING: Using vmod-curl to connect to HTTPS sites is currently unsupported and may lead to segmentation faults on VCL load/unload. (openssl library intricacies)

INSTALLATION

The source tree is based on autotools to configure the building, and does also have the necessary bits in place to do functional unit tests using the varnishtest tool.

If you have installed Varnish to a non-standard directory, call autogen.sh and configure with PKG_CONFIG_PATH pointing to the appropriate path. For instance, when varnishd configure was called with --prefix=$PREFIX, use

PKG_CONFIG_PATH=$PREFIX/lib/pkgconfig
export PKG_CONFIG_PATH

Make targets:

  • make - builds the vmod
  • make install - installs your vmod in VMODDIR
  • make check - runs the unit tests in src/tests/*.vtc

To use the vmod do something along the lines of:

import curl;

sub vcl_recv {
        curl.get("http://example.com/test");
        if (curl.header("X-Foo") == "bar") {
        ...
        }

        curl.free();
}

See src/vmod_curl.vcc for the rest of the callable functions.

Development of this VMOD has been sponsored by the Norwegian company Aspiro Music AS for usage on their WiMP music streaming service.

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