forked from tilderadio/site
36 lines
1.1 KiB
PHP
36 lines
1.1 KiB
PHP
<?php
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include 'schedule.php';
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header("Content-Type: text/calendar");
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// ICS generation. Here be dragons.
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// I created the file using a Python script and reverse-engineered it to figure this out.
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// Header.
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echo "BEGIN:VCALENDAR".PHP_EOL;
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echo "VERSION:2.0".PHP_EOL;
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echo "PRODID:tilderadio schedule".PHP_EOL;
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foreach ($schedule as $event) {
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// The VEVENT structure's pretty easy to generate, especially since we're already in UTC.
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echo "BEGIN:VEVENT".PHP_EOL;
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// First, the event start and end.
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echo "DTEND:".formatdate($event["end"]).PHP_EOL;
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echo "DTSTART:".formatdate($event["start"]).PHP_EOL;
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// Next, the event title, or "summary" as the spec calls it.
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echo "SUMMARY:DJ ".$event["title"].PHP_EOL;
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// Finally, a unique ID for this event.
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// To make absolutely certain we don't repeat the same event ID, I decided to use a SHA256 hash of the event structure.
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echo "UID:";
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echo hash("sha256",json_encode($event));
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echo "@tilderadio.org".PHP_EOL;
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// Finally, close the VEVENT structure.
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echo "END:VEVENT".PHP_EOL;
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// Next event?
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}
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// Finally, close out the VCALENDAR structure.
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echo "END:VCALENDAR".PHP_EOL;
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?>
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