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Request #56689 Add an RFC822 filter for e-mail in addition to the existing e-mail filter
Submitted: 2005-12-02 22:10 UTC Modified: 2005-12-12 02:50 UTC
From: Assigned:
Status: Wont fix Package: filter (PECL)
PHP Version: Irrelevant OS: n/a
Private report: No CVE-ID: None
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 [2005-12-02 22:10 UTC]
Use mail.h and rfc822.h from the c-client library to create a filter ("FL_RFC822") to allow e-mail addresses to be filtered as RFC822-compliant addresses. This filter would be in addition to the existing FL_EMAIL filter.

I have a patch for this, but I don't want to post it here since it's 105 lines. So, I'll send it to derick and sniper via e-mail.

The caveat involved in my patch is this: currently, mail.h and rfc822.h must exist in the c-client folder in the system path. This is not exactly efficient or preferrable. It would be best if pecl/filter determines the location of these headers either by the configuration value if PHP was compiled --with-imap or a new config option being added to the configure line for pecl/filter. In either case, the FL_RFC822 filter should probably be disabled if the headers aren't available so that it can be compiled and used anyway without the RFC822 functionality.

Reproduce code:
Example of how it works:

$email1 = 'John Doe <> (comment)';
$email2 = 'Jane Doe <jane@> (comment)';

var_dump(filter_data($email1, FL_RFC822));
var_dump(filter_data($email2, FL_RFC822));

Expected result:
string(37) "John Doe <> (comment)"


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 [2005-12-12 02:50 UTC]
I don't want the filter extension to rely on external libraries in any way as this makes writing portable applications that use input filtering a bit impossible.
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