$extra_comments[] = "Region Filter: " . $_GET["region"];
}
// This might be needed for caching in the future
// $cache_key = ($internal ? "INT_" : "EXT_") . ($atom_mode ? "ATOM_" : "PACK_") . ($newsstand_mode ? "NEWS" : "OPDS");
$extra_comments[] = "Status: {$status}. Number of editions to include: " . pugpig_get_num_editions();
$editions = pugpig_get_editions($status, pugpig_get_num_editions());
$edition_ids = array();
$modified = null;
foreach ($editions as $edition) {
if (pugpig_should_keep_edition_in_feed($edition)) {
$edition_ids[] = $edition->ID;
$atom_timestamp = pugpig_get_page_modified($edition);
if ($atom_mode) {
$this_time = $atom_timestamp;
} else {
$package_timestamp = pugpig_get_edition_update_date(pugpig_get_edition($edition->ID), false);
$this_time = max($package_timestamp, $atom_timestamp);
// so cover changes etc. are picked up
}
if ($modified == NULL || $modified < $this_time) {
$modified = $this_time;
}
}
}
pugpig_set_cache_headers($modified, $ttl);
$d = pugpig_get_opds_container($edition_ids, $internal, $atom_mode, $newsstand_mode, $extra_comments);
// Add any static OPDS entries to the feed
$entry_xml_string = pugpig_get_extra_opds_entries();
if (!empty($entry_xml_string)) {
$fragment = $d->createDocumentFragment();
$fragment->appendChild($d->createComment("Adding static entries from pugpig_static_entry_xml setting"));
function is_authorised($edition_num, $pugpigCredsSecret)
{
$edition_id = get_edition_id($edition_num);
$edition = pugpig_get_edition($edition_id);
$free_or_draft = $edition['price'] == 'FREE' || $edition['status'] == 'draft';
$is_packager_request = $_SERVER['HTTP_USER_AGENT'] === 'PugpigNetwork/Packager';
$authorised = $free_or_draft || $is_packager_request;
if (!$free_or_draft && isset($_SERVER['PHP_AUTH_USER']) && isset($_SERVER['PHP_AUTH_PW']) && isset($pugpigCredsSecret)) {
$username = $_SERVER['PHP_AUTH_USER'];
$password = sha1("{$edition_id}:{$username}:{$pugpigCredsSecret}");
$authorised = $password == $_SERVER['PHP_AUTH_PW'];
}
return $authorised;
}
function pugpig_get_rss_section($edition_id, $nid)
{
// print_r('pugpig_get_rss_section(' . $edition_id . ',' . $nid . ')');
$edition = pugpig_get_edition($edition_id, false);
$section = pugpig_get_page($nid);
$d = new DomDocument('1.0', 'UTF-8');
$feed = $d->createElement('rss');
$feed->setAttribute('version', '2.0');
$channel = $d->createElement('channel');
$feed->appendChild($channel);
$channel->appendChild(newElement($d, 'title', $section['title']));
$in_section = false;
foreach (pugpig_get_kindle_page_array($edition) as $page) {
if ($page['id'] == $nid && $page['level'] == 1 && !$in_section) {
$in_section = true;
} else {
if ($page['level'] == 1) {
// Bail when we hit the section higher level page
$in_section = false;
} elseif ($in_section) {
$item = $d->createElement('item');
$abs_path = pugpig_abs_link('editions/' . pugpig_get_atom_tag($edition['key']) . '/data/' . $page['id'] . '/kindle.html');
$item->appendChild(newElement($d, 'link', $abs_path));
$channel->appendChild($item);
}
}
}
$d->appendChild($feed);
return $d;
}
function is_authorised($edition_num, $pugpigCredsSecret)
{
$edition_id = get_edition_id($edition_num);
$edition = pugpig_get_edition($edition_id);
$free_or_draft = $edition['price'] == 'FREE' || $edition['status'] == 'draft';
$is_packager_request = array_key_exists('HTTP_USER_AGENT', $_SERVER) && $_SERVER['HTTP_USER_AGENT'] === 'PugpigNetwork/Packager';
$authorised = $free_or_draft || $is_packager_request;
if (!$free_or_draft && isset($_SERVER['PHP_AUTH_USER']) && isset($_SERVER['PHP_AUTH_PW']) && isset($pugpigCredsSecret)) {
$username = $_SERVER['PHP_AUTH_USER'];
$password = sha1("{$edition_id}:{$username}:{$pugpigCredsSecret}");
$authorised = $password == $_SERVER['PHP_AUTH_PW'];
}
// We can't use the Authorisation Header.
// Try X-Akamai
$queryname = "X-Pugpig-Akamai";
// converted by PHP
$headername = "X_PUGPIG_AKAMAI";
if (isset($_SERVER["HTTP_" . $headername])) {
$header = $_SERVER["HTTP_" . $headername];
} elseif (isset($_REQUEST[$queryname])) {
$header = $_REQUEST[$queryname];
}
if (!$authorised && !empty($header)) {
list($ak_path, $ak_time, $ak_ip) = explode("|", $header);
if ($ak_ip != getRequestIPAddress()) {
echo "Akamai Header Token IP address " . getRequestIPAddress() . " does not match token {$ak_ip}<br />\n";
} elseif ($ak_time < time()) {
echo "Akamai Header Token expired " . (time() - $ak_time) . " seconds ago<br />\n";
} elseif ($ak_path !== $edition_id) {
echo "Akamai Header Token not valid for {$edition_id} (only {$ak_path})<br />\n";
} else {
$authorised = true;
}
}
return $authorised;
}
