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Firefox/URL Bar Algorithm: Difference between revisions
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==Network== | ==Network== | ||
... | # Since the <code>keyword.enabled</code> preference is true, if DNS lookup for the hostname failed and the URI scheme contains the string "http" and the hostname does not contain a '.' then plug the hostname (possibly after some decoding from punycode to UTF-8) into <tt>keyword.URL</tt>. | ||
# If the above step did not produce a <code>nsIURI</code> and either DNS lookup failed or the network access failed with <code>NS_ERROR_NET_RESET</code> (typically means the server did not respond or dropped the connection immediately) and the protocol is "http" and the url does not contain a username or password then because the <code>browser.fixup.alternate.enabled</code> preference defaults to true we try to construct an alternate hostname. The steps for this are in <code>nsDefaultURIFixup::MakeAlternateURI</code> and are as follows: | |||
## Get the prefix to use from the <code>browser.fixup.alternate.prefix</code> preference; default is "www.". Some locales set this preference. | |||
## Get the suffix to use from the <code>browser.fixup.alternate.suffix</code> preference; default is ".com". Some locales set this preference. | |||
## If the hostname includes no '.' characters, prepend the prefix and append the suffix. Else if it has a single '.' and the part ending on the '.' is equal to our prefix, append the suffix. Else if it has a single '.' and tour suffix is nonempty prepend the prefix. For the default pref values, this means the <tt>foo</tt> will become <tt>www.foo.com</tt>, as will <tt>foo.com</tt> and <tt>www.foo</tt>. <tt>foo.org</tt> will become <tt>www.foo.org</tt>. <tt>web.foo</tt> and <tt>x.y.foo</tt> won't be changed. | |||
# If either of the two steps above produced a URI different from the URI whose load failed, load that new URI. | |||