IkiWiki/Plugin/googlecalendar.pm



#!/usr/bin/perl
package IkiWiki::Plugin::googlecalendar;

use warnings;
use strict;
use IkiWiki 2.00;

sub import {
    hook(type => "getsetup", id => "googlecalendar",
        call => \&getsetup);
    hook(type => "preprocess", id => "googlecalendar",
        call => \&preprocess);
    hook(type => "format", id => "googlecalendar",
        call => \&format);
}

sub getsetup () {
    return
        plugin => {
            safe => 1,
            rebuild => undef,
        },
}

sub preprocess (@) {
    my %params=@_;

    # Parse the html, looking for the url to embed for the calendar.
    # Avoid XSS attacks..
    my ($url)=$params{html}=~m#iframe\s+src="http://www\.google\.com/calendar/embed\?([^"<>]+)"#;
    if (! defined $url || ! length $url) {
        error gettext("failed to find url in html")
    }
    my ($height)=$params{html}=~m#height="(\d+)"#;
    my ($width)=$params{html}=~m#width="(\d+)"#;

    return "<div class=\"googlecalendar\" src=\"$url\" height=\"$height\" width=\"$width\"></div>";
}

sub format (@) {
        my %params=@_;

    $params{content}=~s/<div class=\"googlecalendar" src="([^"]+)" height="([^"]+)" width="([^"]+)"><\/div>/gencal($1,$2,$3)/eg;

        return $params{content};
}

sub gencal ($$$) {
    my $url=shift;
    my $height=shift;
    my $width=shift;
    return qq{<iframe src="http://www.google.com/calendar/embed?$url" style=" border-width:0 " width="$width" frameborder="0" height="$height"></iframe>};
}

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