Pepperminty-Wiki/modules/feature-history.php

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<?php
register_module([
"name" => "Page History",
"version" => "0.1",
"author" => "Starbeamrainbowlabs",
"description" => "Adds the ability to keep unlimited page history, limited only by your disk space. Note that this doesn't store file history (yet).",
"id" => "feature-history",
"code" => function() {
/*
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* ███████ ██ ███████ ██ ██ ██ ██████ ████
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* ██ ██ ██ ███████ ██ ██████ ██ ██ ██
*/
add_action("history", function() {
global $settings;
http_response_code(501);
exit(page_renderer::render_main("Coming soon", "<p>Page history is coming soon!</p>"));
});
register_save_preprocessor(function(&$pageinfo, &$newsource, &$oldsource) {
global $pageindex, $paths, $env;
if(!isset($pageinfo->history))
$pageinfo->history = [];
// Save the *new source* as a revision
// This results in 2 copies of the current source, but this is ok
// since any time someone changes something, it create a new
// revision
// Note that we can't save the old source here because we'd have no
// clue who edited it since $pageinfo has already been updated by
// this point
// TODO Store tag changes here
$nextRid = count($pageinfo->history); // The next revision id
$ridFilename = "$pageinfo->filename.r$nextRid";
// Insert a new entry into the history
$pageinfo->history[] = [
"type" => "edit", // We might want to store other types later (e.g. page moves)
"rid" => $nextRid,
"timestamp" => time(),
"filename" => $ridFilename,
"bytechange" => strlen($newsource) - strlen($oldsource),
"editor" => $pageinfo->lasteditor
];
// Save the new source as a revision
file_put_contents("$env->storage_prefix$ridFilename", $newsource);
// Save the edited pageindex
file_put_contents($paths->pageindex, json_encode($pageindex, JSON_PRETTY_PRINT));
});
}
]);
?>