Hi Eric,
Thanks for the pointers.
>1. With a transformation plugin you could 'print' the full response -- but
where do you want to print it?
I'd like to print it as a debug message to stdio/stderr on the window in
which the program is running, and check on the transformations that are
applied to it.
2. The null-transform plugin can be the basis of the plugin I want to
develop, but a couple of questions. Here is the code snippet which seems to
do the actual copying. How do I access the actual string or char*
representing the body here? The data seems to be hidden below a few levels
of buffers and abstractions:
if (towrite > 0) {
/* Copy the data from the read buffer to the output buffer. */
if (TSIOBufferCopy(TSVIOBufferGet(data->output_vio),
TSVIOReaderGet(input_vio), towrite, 0) == TS_ERROR) {
TSError("[null-plugin] unable to copy IO buffers\n");
goto Lerror;
}
Thanks,
Manish
On Sun, Nov 28, 2010 at 10:47 PM, Eric Balsa <[email protected]> wrote:
> Hi Manish,
>
> 1. With a transformation plugin you could 'print' the full response --
> but where do you want to print it?
>
> 2. There is no HTML parsing inside TrafficServer. TS does not care
> about content; it proxies/caches *anything* as long as it's served
> over HTTP/HTTPS.
>
> To solve your problem, you would need to develop a transformation
> plugin (
> http://trafficserver.apache.org/docs/v2/sdk/HTTPTransformationPlugins.html
> )
> and do some simple string parsing on the buffer.
>
> There are a few plugin examples available to get you started at:
>
> http://svn.apache.org/repos/asf/trafficserver/traffic/trunk/example/null-transform/
>
> http://svn.apache.org/repos/asf/trafficserver/traffic/trunk/example/bnull-transform/
>
> http://svn.apache.org/repos/asf/trafficserver/traffic/trunk/example/append-transform/
>
> Regards,
> --Eric
>
> On Sun, Nov 28, 2010 at 9:05 PM, Manish Pandey <[email protected]> wrote:
> > Hi folks,
> >
> > I am developing a trafficserver plugin, and would like to find out
> > 1. How can I print a origin server response sent to the trafficserver,
> e.g.,
> > the html document with embedded javascript etc.
> > 2. Also, how can I detect specific strings in the response to do response
> > filtering? Is there any html parser that is available
> > in TS that I can use for this?
> >
> > Any pointers will be appreciated.
> >
> > Thanks,
> > Manish
> >
>
