=head1 NAME APR::URI - Perl API for URI manipulations =head1 Synopsis use APR::URI (); my $url = 'http://user:pass@example.com:80/foo?bar#item5'; # parse and break the url into components my $parsed = APR::URI->parse($r->pool, $url); print $parsed->scheme; print $parsed->user; print $parsed->password; print $parsed->hostname; print $parsed->port; print $parsed->path; print $parsed->rpath; print $parsed->query; print $parsed->fragment; # reconstruct the url, after changing some components and completely # removing other $parsed->scheme($new_scheme); $parsed->user(undef); $parsed->password(undef); $parsed->hostname($new_hostname); $parsed->port($new_port); $parsed->path($new_path); $parsed->query(undef); $parsed->fragment(undef); print $parsed->unparse; # get the password field too (by default it's not revealed) use APR::Const -compile => qw(URI_UNP_REVEALPASSWORD); print $parsed->unparse(APR::Const::URI_UNP_REVEALPASSWORD); # what the default port for the ftp protocol? my $ftp_port = APR::URI::port_of_scheme("ftp"); =head1 Description C allows you to parse URI strings, manipulate each of the URI elements and deparse them back into URIs. All C object accessors accept a string or an C value as an argument. Same goes for return value. It's important to distinguish between an empty string and C. For example let's say your code was: my $uri = 'http://example.com/foo?bar#item5'; my $parsed = APR::URI->parse($r->pool, $uri); Now you no longer want to the query and fragment components in the final url. If you do: $parsed->fragment(''); $parsed->query(''); followed by: my $new_uri = parsed->unparse; the resulting URI will be: http://example.com/foo?# which is probably not something that you've expected. In order to get rid of the separators, you must completely unset the fields you don't want to see. So, if you do: $parsed->fragment(undef); $parsed->query(undef); followed by: my $new_uri = parsed->unparse; the resulting URI will be: http://example.com/foo As mentioned earlier the same goes for return values, so continuing this example: my $new_fragment = $parsed->fragment(); my $new_query = $parsed->query(); Both values now contain C, therefore you must be careful when using the return values, when you use them, as you may get warnings. Also make sure you read through C> as various optional flags affect how the deparsed URI is rendered. =head1 API C provides the following functions and/or methods: =head2 C Get/set trailing "#fragment" string $oldval = $parsed->fragment($newval); =over 4 =item obj: C<$parsed> ( C> ) =item opt arg1: C<$newval> ( string or undef ) =item ret: C<$oldval> ( string or undef ) =item since: 2.0.00 =back =head2 C Get/set combined C<[user[:password]@]host[:port]> $oldval = $parsed->hostinfo($newval); =over 4 =item obj: C<$parsed> ( C> ) =item opt arg1: C<$newval> ( string or undef ) =item ret: C<$oldval> ( string or undef ) =item since: 2.0.00 =back The C value is set automatically when C> is called. It's not updated if any of the individual fields is modified. It's not used when C> is called. =head2 C Get/set hostname $oldval = $parsed->hostname($newval); =over 4 =item obj: C<$parsed> ( C> ) =item opt arg1: C<$newval> ( string or undef ) =item ret: C<$oldval> ( string or undef ) =item since: 2.0.00 =back =head2 C Get/set password (as in http://user:password@host:port/) $oldval = $parsed->password($newval); =over 4 =item obj: C<$parsed> ( C> ) =item opt arg1: C<$newval> ( string or undef ) =item ret: C<$oldval> ( string or undef ) =item since: 2.0.00 =back =head2 C Parse the URI string into URI components $parsed = APR::URI->parse($pool, $uri); =over 4 =item obj: C<$parsed> ( C> ) =item arg1: C<$pool> ( string ) ( C> ) =item arg2: C<$uri> ( string ) The URI to parse =item ret: C<$parsed> ( C> ) The parsed URI object =item since: 2.0.00 =back After parsing, if a component existed but was an empty string (e.g. empty query I) -- the corresponding accessor will return an empty string. If a component didn't exist (e.g. no query part I) -- the corresponding accessor will return C. =head2 C Get/set the request path $oldval = $parsed->path($newval); =over 4 =item obj: C<$parsed> ( C> ) =item opt arg1: C<$newval> ( string or undef ) =item ret: C<$oldval> ( string or undef ) C<"/"> if only C =item since: 2.0.00 =back =head2 C Gets the C> minus the C> $rpath = $parsed->rpath(); =over 4 =item obj: C<$parsed> ( C> ) =item opt arg1: C<$newval> ( string or undef ) =item ret: C<$oldval> ( string or undef ) The path minus the I =item since: 2.0.00 =back =head2 C Get/set port number $oldval = $parsed->port($newval); =over 4 =item obj: C<$parsed> ( C> ) =item opt arg1: C<$newval> ( number or string or undef ) =item ret: C<$oldval> ( string or undef ) If the port component didn't appear in the parsed URI, APR internally calls C> to find out the port number for the given C>. =item since: 2.0.00 =back =head2 C Return the default port for a given scheme. The recognized schemes are http, ftp, https, gopher, wais, nntp, snews and prospero. $port = APR::URI::port_of_scheme($scheme); =over 4 =item obj: C<$scheme> ( string ) The scheme string =item ret: C<$port> (integer) The default port for this scheme =item since: 2.0.00 =back =head2 C Get/set the query string (the part starting after C<'?'> and all the way till the end or the C<'#fragment'> part if the latter exists). $oldval = $parsed->query($newval); =over 4 =item obj: C<$parsed> ( C> ) =item opt arg1: C<$newval> ( string or undef ) =item ret: C<$oldval> ( string or undef ) =item since: 2.0.00 =back =head2 C Get/set the protocol scheme ("http", "ftp", ...) $oldval = $parsed->scheme($newval); =over 4 =item obj: C<$parsed> ( C> ) =item opt arg1: C<$newval> ( string or undef ) =item ret: C<$oldval> ( string or undef ) =item since: 2.0.00 =back =head2 C Get/set user name (as in http://user:password@host:port/) $oldval = $parsed->user($newval); =over 4 =item obj: C<$parsed> ( C> ) =item opt arg1: C<$newval> ( string or undef ) =item ret: C<$oldval> ( string or undef ) =item since: 2.0.00 =back =head2 C Unparse the URI components back into a URI string $new_uri = $parsed->unparse(); $new_uri = $parsed->unparse($flags); =over 4 =item obj: C<$parsed> ( C> ) =item opt arg1: C<$flags> ( L ) By default the constant C is passed. If you need to pass more than one flag use unary C<|>, e.g.: $flags = APR::Const::URI_UNP_OMITUSER|APR::Const::URI_UNP_OMITPASSWORD; The valid C constants are listed next =item ret: C<$new_uri> ( string ) =item since: 2.0.00 =back Valid C constants: To import all URI constants you could do: use APR::Const -compile => qw(:uri); but there is a significant amount of them, most irrelevant to this method. Therefore you probably don't want to do that. Instead specify explicitly the ones that you need. All the relevant to this method constants start with C. And the available constants are: =over 4 =item C Don't show C>, C>, C>, C> and C> components (i.e. if you want only the relative URI) =item C Hide the C> component =item C Hide the C> component (the default) =item C Reveal the C> component =item C Don't show C>, C> and C> components =item C Don't show C> and C> components =back Notice that some flags overlap. If the optional C<$flags> argument is passed and contains no C and no C -- the C> part will be rendered as a literal C<"XXXXXXXX"> string. If the C> number matches the C>, the unparsed URI won't include it and there is no flag to force that C> to appear. If the C> number is non-standard it will show up in the unparsed string. Examples: Starting with the parsed URL: use APR::URI (); my $url = 'http://user:pass@example.com:80/foo?bar#item5'; my $parsed = APR::URI->parse($r->pool, $url); deparse it back including and excluding parts, using different values for the optional C argument: =over 4 =item * Show all but the C> fields: print $parsed->unparse; Prints: http://user@example.com/foo?bar#item5 Notice that the C> field is gone too, since it was a default C> for C> C. =item * Include the C> field (by default it's not revealed) use APR::Const -compile => qw(URI_UNP_REVEALPASSWORD); print $parsed->unparse(APR::Const::URI_UNP_REVEALPASSWORD); Prints: http://user:pass@example.com/foo?bar#item5 =item * Show all fields but the last three, C>, C> and C>: use APR::Const -compile => qw(URI_UNP_REVEALPASSWORD APR::Const::URI_UNP_OMITPATHINFO); print $parsed->unparse( APR::Const::URI_UNP_REVEALPASSWORD|URI_UNP_OMITPATHINFO); Prints: http://user:pass@example.com =back =head1 See Also C>, L. =head1 Copyright mod_perl 2.0 and its core modules are copyrighted under The Apache Software License, Version 2.0. =head1 Authors L. =cut