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Prototype OPML import parser

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J. King 2019-04-19 18:01:31 -04:00
parent 77efaa7b41
commit 825c286e5b
1 changed files with 53 additions and 0 deletions
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53
lib/ImportExport/OPML.php
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@ -10,6 +10,59 @@ use JKingWeb\Arsse\Arsse;
use JKingWeb\Arsse\User\Exception as UserException; use JKingWeb\Arsse\User\Exception as UserException;
class OPML { class OPML {
public function import(string $user, string $opml, bool $flat = false, bool $replace = false): bool {
list($folders, $feeds) = $this->parse($opml, $flat);
return true;
}
protected function parse(string $opml, bool $flat): array {
$d = new \DOMDocument;
if (!@$d->loadXML($opml)) {
// not a valid XML document
throw new \Exception;
}
$body = $d->getElementsByTagName("body");
if ($d->documentElement->nodeName !== "opml" || !$body->length || $body->item(0)->parentNode != $d->documentElement) {
// not a valid OPML document
throw new \Exception;
}
$body = $body->item(0);
$folders = [];
$feeds = [];
$folderMap = new \SplObjectStorage;
$folderMap[$body] = sizeof($folderMap);
$node = $body->firstChild;
while ($node && $node != $body) {
if ($node->nodeType == \XML_ELEMENT_NODE && $node->nodeName === "outline") {
if ($node->getAttribute("type") === "rss") {
$url = $node->getAttribute("xmlUrl");
if (strlen($url)) {
$title = $node->getAttribute("text");
$folder = $folderMap[$node->parentNode] ?? 0;
$categories = $node->getAttribute("category");
if (strlen($categories)) {
$categories = array_map(function($v) {
return trim(preg_replace("/\s+/g", " ", $v));
}, explode(",", $categories));
}
$feeds[] = ['url' => $url, 'title' => $title, 'folder' => $folder, 'categories' => $categories];
}
$node = $node->nextSibling ?: $node->parentNode;
} else {
if (!$flat) {
$id = sizeof($folderMap);
$folderMap[$node] = $id;
$folders[$id] = ['id' => $id, 'name' => $node->getAttribute("text"), 'parent' => $folderMap[$node->parentNode]];
}
$node = $node->hasChildNodes() ? $node->firstChild : ($node->nextSibling ?: $node->parentNode);
}
} else {
$node = $node->nextSibling ?: $node->parentNode;
}
}
return [$feeds, $folders];
}
public function export(string $user, bool $flat = false): string { public function export(string $user, bool $flat = false): string {
if (!Arsse::$user->exists($user)) { if (!Arsse::$user->exists($user)) {
throw new UserException("doesNotExist", ["action" => __FUNCTION__, "user" => $user]); throw new UserException("doesNotExist", ["action" => __FUNCTION__, "user" => $user]);