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authorAndrew Dolgov <[email protected]>2023-10-25 12:55:09 +0300
committerAndrew Dolgov <[email protected]>2023-10-25 12:55:09 +0300
commit865ecc87963dc3b26e66296616eef2a1cc41ac3f (patch)
treebf2ecd8a391103bdb2c8b70cd33c47467310754b /classes/feedparser.php
parent0a5507d3bd79d04c860455664f919bf8e7274fda (diff)
move to psr-4 autoloader
Diffstat (limited to 'classes/feedparser.php')
-rw-r--r--classes/feedparser.php245
1 files changed, 0 insertions, 245 deletions
diff --git a/classes/feedparser.php b/classes/feedparser.php
deleted file mode 100644
index 4b9c63f56..000000000
--- a/classes/feedparser.php
+++ /dev/null
@@ -1,245 +0,0 @@
-<?php
-class FeedParser {
-
- /** @var DOMDocument */
- private $doc;
-
- /** @var string|null */
- private $error = null;
-
- /** @var array<string> */
- private $libxml_errors = [];
-
- /** @var array<FeedItem> */
- private $items = [];
-
- /** @var string|null */
- private $link;
-
- /** @var string|null */
- private $title;
-
- /** @var FeedParser::FEED_*|null */
- private $type;
-
- /** @var DOMXPath|null */
- private $xpath;
-
- const FEED_RDF = 0;
- const FEED_RSS = 1;
- const FEED_ATOM = 2;
-
- function __construct(string $data) {
- libxml_use_internal_errors(true);
- libxml_clear_errors();
- $this->doc = new DOMDocument();
- $this->doc->loadXML($data);
-
- mb_substitute_character("none");
-
- $error = libxml_get_last_error();
-
- if ($error) {
- foreach (libxml_get_errors() as $error) {
- if ($error->level == LIBXML_ERR_FATAL) {
- // currently only the first error is reported
- $this->error ??= Errors::format_libxml_error($error);
- $this->libxml_errors[] = Errors::format_libxml_error($error);
- }
- }
- }
- libxml_clear_errors();
- }
-
- function init() : void {
- $root = $this->doc->firstChild;
- $xpath = new DOMXPath($this->doc);
- $xpath->registerNamespace('atom', 'http://www.w3.org/2005/Atom');
- $xpath->registerNamespace('atom03', 'http://purl.org/atom/ns#');
- $xpath->registerNamespace('media', 'http://search.yahoo.com/mrss/');
- $xpath->registerNamespace('rdf', 'http://www.w3.org/1999/02/22-rdf-syntax-ns#');
- $xpath->registerNamespace('slash', 'http://purl.org/rss/1.0/modules/slash/');
- $xpath->registerNamespace('dc', 'http://purl.org/dc/elements/1.1/');
- $xpath->registerNamespace('content', 'http://purl.org/rss/1.0/modules/content/');
- $xpath->registerNamespace('thread', 'http://purl.org/syndication/thread/1.0');
-
- $this->xpath = $xpath;
-
- $root_list = $xpath->query("(//atom03:feed|//atom:feed|//channel|//rdf:rdf|//rdf:RDF)");
-
- if (!empty($root_list) && $root_list->length > 0) {
-
- /** @var DOMElement|null $root */
- $root = $root_list->item(0);
-
- if ($root) {
- switch (mb_strtolower($root->tagName)) {
- case "rdf:rdf":
- $this->type = $this::FEED_RDF;
- break;
- case "channel":
- $this->type = $this::FEED_RSS;
- break;
- case "feed":
- case "atom:feed":
- $this->type = $this::FEED_ATOM;
- break;
- default:
- $this->error ??= "Unknown/unsupported feed type";
- return;
- }
- }
-
- switch ($this->type) {
- case $this::FEED_ATOM:
-
- $title = $xpath->query("//atom:feed/atom:title")->item(0);
-
- if (!$title)
- $title = $xpath->query("//atom03:feed/atom03:title")->item(0);
-
-
- if ($title) {
- $this->title = $title->nodeValue;
- }
-
- $link = $xpath->query("//atom:feed/atom:link[not(@rel)]")->item(0);
-
- if (!$link)
- $link = $xpath->query("//atom:feed/atom:link[@rel='alternate']")->item(0);
-
- if (!$link)
- $link = $xpath->query("//atom03:feed/atom03:link[not(@rel)]")->item(0);
-
- if (!$link)
- $link = $xpath->query("//atom03:feed/atom03:link[@rel='alternate']")->item(0);
-
- /** @var DOMElement|null $link */
- if ($link && $link->hasAttributes()) {
- $this->link = $link->getAttribute("href");
- }
-
- $articles = $xpath->query("//atom:entry");
-
- if (empty($articles) || $articles->length == 0)
- $articles = $xpath->query("//atom03:entry");
-
- foreach ($articles as $article) {
- array_push($this->items, new FeedItem_Atom($article, $this->doc, $this->xpath));
- }
-
- break;
- case $this::FEED_RSS:
- $title = $xpath->query("//channel/title")->item(0);
-
- if ($title) {
- $this->title = $title->nodeValue;
- }
-
- /** @var DOMElement|null $link */
- $link = $xpath->query("//channel/link")->item(0);
-
- if ($link) {
- if ($link->getAttribute("href"))
- $this->link = $link->getAttribute("href");
- else if ($link->nodeValue)
- $this->link = $link->nodeValue;
- }
-
- $articles = $xpath->query("//channel/item");
-
- foreach ($articles as $article) {
- array_push($this->items, new FeedItem_RSS($article, $this->doc, $this->xpath));
- }
-
- break;
- case $this::FEED_RDF:
- $xpath->registerNamespace('rssfake', 'http://purl.org/rss/1.0/');
-
- $title = $xpath->query("//rssfake:channel/rssfake:title")->item(0);
-
- if ($title) {
- $this->title = $title->nodeValue;
- }
-
- $link = $xpath->query("//rssfake:channel/rssfake:link")->item(0);
-
- if ($link) {
- $this->link = $link->nodeValue;
- }
-
- $articles = $xpath->query("//rssfake:item");
-
- foreach ($articles as $article) {
- array_push($this->items, new FeedItem_RSS($article, $this->doc, $this->xpath));
- }
-
- break;
-
- }
-
- if ($this->title) $this->title = trim($this->title);
- if ($this->link) $this->link = trim($this->link);
-
- } else {
- $this->error ??= "Unknown/unsupported feed type";
- return;
- }
- }
-
- /** @deprecated use Errors::format_libxml_error() instead */
- function format_error(LibXMLError $error) : string {
- return Errors::format_libxml_error($error);
- }
-
- // libxml may have invalid unicode data in error messages
- function error() : string {
- return UConverter::transcode($this->error ?? '', 'UTF-8', 'UTF-8');
- }
-
- /** @return array<string> - WARNING: may return invalid unicode data */
- function errors() : array {
- return $this->libxml_errors;
- }
-
- function get_link() : string {
- return clean($this->link ?? '');
- }
-
- function get_title() : string {
- return clean($this->title ?? '');
- }
-
- /** @return array<FeedItem> */
- function get_items() : array {
- return $this->items;
- }
-
- /** @return array<string> */
- function get_links(string $rel) : array {
- $rv = array();
-
- switch ($this->type) {
- case $this::FEED_ATOM:
- $links = $this->xpath->query("//atom:feed/atom:link");
-
- foreach ($links as $link) {
- if (!$rel || $link->hasAttribute('rel') && $link->getAttribute('rel') == $rel) {
- array_push($rv, clean(trim($link->getAttribute('href'))));
- }
- }
- break;
- case $this::FEED_RSS:
- $links = $this->xpath->query("//atom:link");
-
- foreach ($links as $link) {
- if (!$rel || $link->hasAttribute('rel') && $link->getAttribute('rel') == $rel) {
- array_push($rv, clean(trim($link->getAttribute('href'))));
- }
- }
- break;
- }
-
- return $rv;
- }
-}