libproxy crashes with pac

[Pekka Pessi]

$ lsb_release -rd
Description: Ubuntu 11.04
Release: 11.04
 $ dpkg-query -W libproxy0
libproxy0 0.3.1-2ubuntu5

Steps to reproduce problems:
- use a proxy.pac calling isInNet, shExpMatch or isPlainHostName functions
- use something relying on libproxy to do proxy.pac parsing, e.g., clock applet with weather

Wait until application calls px_proxy_factory_get_proxies() twice => crash

Seems to me that the problem is in pacutils.js with bad isInNet, shExpMatch or isPlainHostName functions.

[Pekka Pessi (ppessi)]

Fix regexps usage in pacutils.js for webkit

[Pekka Pessi (ppessi)]

Clear dangling references to webkit pac context and prevent future crash if there is a problem evaluating the pac file.

[Pekka Pessi (ppessi)]

Hmph. Better patch for pacutils.js, now with working isInNet().

[Pekka Pessi (ppessi)]

...and 3rd one, now without extra call to dnsResolve().

[DimStar (dominique-launchpad-net)]

Just a side note regarding pacutils.js:
This is a copy / extract of the firefox sources. If you're convinced they are wrong, better report them to Mozilla :)

(the isInNet is indeed changed there too, the other two functions seem unchanged.

(See http://hg.mozilla.org/mozilla-central/file/7528b2718827/netwerk/base/src/nsProxyAutoConfig.js )

[Pekka Pessi (ppessi)]

Looks like the backslashes in pacutils.js were already doublequoted, no wonder they did not work when fed as is to webkit. isInNet seems to be the only function not working properly.