<urlutil $action [$arg ...]>
urlutil function provides URL and other network-related
utility functions. The
$action argument determines what it does:
abs $absurl $relurlor
absurl $absurl $relurlMakes URLs absolute (fully specified). The
$absurlvalues are one or more absolute page URLs. The
$relurlvalues are corresponding links - relative or not - from those page(s). For each
$relurlvalue, its absolute value is returned, as if it were a link on that page. If there are fewer
$relurlvalues, the last
$absurlvalue is re-used.
charsetcanon $charsetReturns canonical name for charset name
$charset, according to current Charset Config file (here). Can be used to map charset aliases to canonical names.
charsetconv $buf $from [$to]Converts text buffer
$to. The default for
$toif unspecified or empty is the current
<urlcp charsettxt>setting. Some character sets may require the use of an external charset converter (the default is
<urlcp charsetconverter>to change it), which is automatically executed when needed. Added in version 5.00.1090598954 20040723.
charsetdetect $bufReturns guess at charset for text buffer
$buf, or "
Unknown" if charset unknown. Only limited charset detection is supported, primarily UTF-8, UTF-16BE/UTF-16LE, and all-7-bit ISO-8859-1. Added in version 7.02.1398457000 20140425.
$u, which must be a
file://URL, and returns the local file path that would be used to read the file, as determined by the current
<urlcp fileroot>etc. settings.
Initializes proxy auto-config by fetching PAC script (if
configured, here) and running it. Returns 1 if
successful, 0 if not. The error from the fetch, messages from the
fetch and script execution, and the body of the script (if
fetched) are available afterwards via
<urlinfo>. If no PAC
script nor URL is configured, or the script was already
initialized, no action is taken, and 1 (success) is returned.
<urlutil pacinit> when using a PAC script is not
necessary: the PAC script is automatically fetched and run when
needed, i.e. at the first
any messages at PAC initialization are reported. However any PAC
failure during such automatic initialization merely translates
into a Proxy auto-config error for the
<urlutil pacinit> action provides a way to get more
detailed information about the PAC script, if desired for
split $u $partsSplits a URL into one or more parts. The
$uvalue is the URL to split. The
$partsvalues are a list of the parts to return, in the same order, as values in
$ret. The parts can be
sslcertificate $pem tostringParses an SSL certificate string buffer
$pem(in PEM format). The
tostringsub-action returns a human-readable string version of the certificate, with subject, issuer, expiration etc. printed. This can be used to view a server certificate returned from <urlinfo sslservercertificate>.
Several actions take
inet type arguments, which are IP network
and/or host address specification strings of the form:
where N is a decimal, octal or hexadecimal integer from 0 to 255,
B is a decimal, octal or hexadecimal netmask integer from 0 to 32,
and IP is an IP address netmask of the form
]]]. If only x Ns
are specified, the last N may be 5-x bytes in size instead of 1
byte. E.g. "
1.2.65535" is legal (last N is 2 bytes),
126.96.36.199535" is not. If no netmask
:IP) is specified, the netmask will be
calculated from standard class A/B/C/D/E rules, but it will be at
least large enough to include all specified bytes of the IP. (Thus,
to get the class A/B/C/D/E netmask of an IP address via
inetnetmask, just give the first/highest N byte of the IP, as
this is the sole determiner of class.) If an IP netmask is specified,
only the largest contiguous set of most-significant 1 bits are used.
188.8.131.52" (netmask is
/32 because 4 bytes
10" (netmask is
/8 because it is a Class A
inet actions were added in version 5.01.1112986377 20050408,
and include the following (see also the SQL equivalents):
inetabbrev $inetReturns the shortest representation of
$inet. This will include all contiguous most-significant bytes of the network, non-zero bytes of the host, and a netmask. Other trailing 0 bytes of the IP may be trimmed. Empty string is returned on error.
inetcanon $inetReturns canonical representation of
$inet. This is dotted-decimal with all 4 bytes, and a
/N netmask. Empty string is returned on error.
inetnetwork $inetReturns 4-decimal IP address with the network bits of
$inet, and the host bits set to 0. Empty string is returned on error.
inethost $inetReturns 4-decimal IP address with the host bits of
$inet, and the network bits set to 0. Empty string is returned on error.
inetbroadcast $inetReturns 4-decimal IP broadcast address for
$inet, i.e. with the network bits, and host bits set to 1. Empty string is returned on error.
inetnetmask $inetReturns 4-decimal IP netmask for
$inet, i.e. with the network bits set to 1, and host bits set to 0. Empty string is returned on error.
inetnetmasklen $inetReturns integer netmask length of
$inet. -1 is returned on error.
inetcontains $inetA $inetBReturns 1 if
$inetB, i.e. every address in
$inetBoccurs within the
$inetAnetwork. 0 is returned if not, or -1 on error.
inetclass $inetReturns class of
classlessif a different netmask is used. Empty string is returned on error.
inet2int $inetReturns integer representation of IP network/host bits of
$inet(i.e. without netmask). Useful for compact storage of IPv4 address as integers instead of strings. -1 is returned on error (note that -1 may also be legitimately returned for an all-ones IP address, e.g. "
inetstring for integer
$itaken as an IP address. Since no netmask can be stored in the integer form of an IP address, the returned IP string will not have a netmask. Empty string is returned on error.
<urlutil abs "http://example.com/dir/page.html" "other.html">
The return value in
$ret would be
urlutil function was added in version 3.0.957600000 20000505.