check_feature('feature_wiki');
if ($prefs['feed_wiki'] != 'y') {
$errmsg = tra("rss feed disabled");
require_once('tiki-rss_error.php');
}
$res = $access->authorize_rss(['tiki_p_view', 'tiki_p_wiki_view_ref']);
if ($res) {
if ($res['header'] == 'y') {
header('WWW-Authenticate: Basic realm="' . $tikidomain . '"');
header('HTTP/1.0 401 Unauthorized');
}
$errmsg = $res['msg'];
require_once('tiki-rss_error.php');
}
$feed = "wiki";
$uniqueid = $feed;
$output = $rsslib->get_from_cache($uniqueid);
if ($output["data"] == "EMPTY") {
$title = $prefs['feed_wiki_title'];
$desc = $prefs['feed_wiki_desc'];
$id = "pageName";
$titleId = "pageName";
$descId = "data";
$dateId = "lastModif";
$authorId = "user";
// if param &diff=1 exists, link to diff, not to page itself
if (isset($_REQUEST["diff"])) {
$readrepl = "tiki-pagehistory.php?page=%s&compare=1&oldver=%s&newver=0&diff_style=minsidediff";
} else {
$readrepl = "tiki-index.php?page=%s";
}
$param = "previous";
$changes = $tikilib -> list_pages(0, $prefs['feed_wiki_max'], 'lastModif_desc', '', '', true, false, false, false, '', false, 'y');
$tmp = [];
foreach ($changes["data"] as $data) {
$result = '';
if ($tiki_p_view != 'y') {
$data['sefurl'] = $wikilib->sefurl($data['pageName']);
unset($data['data']);
$tmp[] = $data;
continue;
}
// get last 2 versions of the page and parse them
$curr_page = $tikilib->get_page_info($data["pageName"]);
$pageversion = (int) $histlib->get_page_latest_version($data["pageName"]);
if ($pageversion == false) {
$prev_page = $curr_page;
$prev_page["data"] = "";
} else {
$prev_page = $histlib->get_page_from_history($data["pageName"], $pageversion, true);
}
$_REQUEST['redirectpage'] = 'y';//block the redirect interpretation
$_REQUEST['page'] = $data["pageName"];
$curr_page_p = TikiLib::lib('parser')->parse_data($curr_page[$descId], ['print' => true, 'is_html' => $curr_page['is_html']]);
$prev_page_p = TikiLib::lib('parser')->parse_data($prev_page[$descId], ['print' => true, 'is_html' => $curr_page['is_html']]);
// do a diff between both pages
require_once('lib/diff/difflib.php');
$diff = diff2($prev_page_p, $curr_page_p, $curr_page['is_html'] ? 'htmldiff' : 'unidiff');
if (is_array($diff)) {
foreach ($diff as $part) {
if ($part["type"] == "diffdeleted") {
foreach ($part["data"] as $chunk) {
$result .= "- $chunk
";
}
}
if ($part["type"] == "diffadded") {
foreach ($part["data"] as $chunk) {
$result .= "+ $chunk
";
}
}
}
} else {
$result = strpos($diff, '') === 0 ? '' : $diff;
}
$data["$descId"] = $result;
// hand over the version of the second page
$data["$param"] = $prev_page["version"];
$tmp[] = $data;
}
$changes["data"] = $tmp;
$tmp = null;
$output = $rsslib->generate_feed($feed, $uniqueid, '', $changes, $readrepl, $param, $id, $title, $titleId, $desc, $descId, $dateId, $authorId);
}
header("Content-type: " . $output["content-type"]);
print $output["data"];