test implementation for the most unnecessary thing ever: jsonfeed
This commit is contained in:
Andrew Dolgov
parent
9e381bc202
commit
f025e8e46e
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@ -0,0 +1,88 @@
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<?php
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class FeedItem_Json extends FeedItem_Common {
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/* for JSON feed only $elem is passed which is the actual entry as an object */
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function __construct($elem, $doc, $xpath) {
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$this->elem = $elem;
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$this->doc = $doc;
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}
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function get_id() {
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return $this->elem->id;
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}
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function get_date() {
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return isset($this->elem->date_published) ? strtotime($this->elem->date_published) : false;
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}
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function get_author() {
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$author = false;
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if (isset($this->author)) {
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$author = $this->author;
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} else if (isset($this->doc->author)) {
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$author = $this->doc->author;
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}
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if ($author && $author->name) {
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return $author->name;
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}
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}
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function get_comments_url() {
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return false;
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}
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function get_comments_count() {
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return false;
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}
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function get_link() {
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return isset($this->elem->url) ? $this->elem->url : false;
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}
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function get_title() {
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return $this->elem->title;
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}
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function get_content() {
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return isset($this->elem->content_html) ? $this->elem->content_html : $this->elem->content_text;
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}
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function get_description() {
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return isset($this->elem->summary) ? $this->elem->summary : false;
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}
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function get_categories() {
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$cats = array();
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if (is_array($this->elem->tags)) {
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foreach ($this->elem->tags as $cat) {
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array_push($cats, trim($cat));
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}
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}
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return $cats;
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}
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function get_enclosures() {
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$encs = array();
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if (is_array($this->elem->attachments)) {
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foreach ($this->elem->attachments as $enclosure) {
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$enc = new FeedEnclosure();
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$enc->type = $enclosure["mime_type"];
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$enc->link = $enclosure["url"];
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@$enc->length = $enclosure["size_in_bytes"];
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array_push($encs, $enc);
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}
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}
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return $encs;
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}
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}
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@ -3,15 +3,17 @@ class FeedParser {
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private $doc;
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private $error;
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private $libxml_errors = array();
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private $items;
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private $items = array();
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private $link;
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private $title;
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private $type;
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private $xpath;
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private $jsonobj;
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const FEED_RDF = 0;
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const FEED_RSS = 1;
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const FEED_ATOM = 2;
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const FEED_JSON = 3;
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function normalize_encoding($data) {
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if (preg_match('/^(<\?xml[\t\n\r ].*?encoding[\t\n\r ]*=[\t\n\r ]*["\'])(.+?)(["\'].*?\?>)/s', $data, $matches) === 1) {
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@ -28,6 +30,17 @@ class FeedParser {
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}
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function __construct($data) {
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$this->jsonobj = @json_decode($data, false);
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// not sure of a better solution to report parsing errors for both kinds of (potentially broken) content
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if ($this->jsonobj) {
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return;
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} else if (!preg_match("/<(\\?xml|feed|channel|rdf|rss)/m", mb_substr($data, 0, 512))) {
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$this->error = 'JSON error: ' . json_last_error_msg();
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return;
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}
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libxml_use_internal_errors(true);
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libxml_clear_errors();
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$this->doc = new DOMDocument();
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@ -87,144 +100,156 @@ class FeedParser {
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}
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}
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libxml_clear_errors();
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$this->items = array();
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}
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function init() {
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$root = $this->doc->firstChild;
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$xpath = new DOMXPath($this->doc);
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$xpath->registerNamespace('atom', 'http://www.w3.org/2005/Atom');
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$xpath->registerNamespace('atom03', 'http://purl.org/atom/ns#');
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$xpath->registerNamespace('media', 'http://search.yahoo.com/mrss/');
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$xpath->registerNamespace('rdf', 'http://www.w3.org/1999/02/22-rdf-syntax-ns#');
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$xpath->registerNamespace('slash', 'http://purl.org/rss/1.0/modules/slash/');
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$xpath->registerNamespace('dc', 'http://purl.org/dc/elements/1.1/');
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$xpath->registerNamespace('content', 'http://purl.org/rss/1.0/modules/content/');
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$xpath->registerNamespace('thread', 'http://purl.org/syndication/thread/1.0');
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$this->xpath = $xpath;
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if ($this->jsonobj) {
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$this->type = $this::FEED_JSON;
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$root = $xpath->query("(//atom03:feed|//atom:feed|//channel|//rdf:rdf|//rdf:RDF)");
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$this->title = $this->jsonobj->title;
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$this->link = $this->jsonobj->feed_url;
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if ($root && $root->length > 0) {
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$root = $root->item(0);
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foreach ($this->jsonobj->items as $item) {
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array_push($this->items, new FeedItem_Json($item, $this->jsonobj, false));
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}
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if ($root) {
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switch (mb_strtolower($root->tagName)) {
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case "rdf:rdf":
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$this->type = $this::FEED_RDF;
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break;
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case "channel":
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$this->type = $this::FEED_RSS;
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break;
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case "feed":
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case "atom:feed":
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$this->type = $this::FEED_ATOM;
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break;
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default:
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if( !isset($this->error) ){
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$this->error = "Unknown/unsupported feed type";
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} else if ($this->doc) {
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$xpath = new DOMXPath($this->doc);
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$xpath->registerNamespace('atom', 'http://www.w3.org/2005/Atom');
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$xpath->registerNamespace('atom03', 'http://purl.org/atom/ns#');
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$xpath->registerNamespace('media', 'http://search.yahoo.com/mrss/');
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$xpath->registerNamespace('rdf', 'http://www.w3.org/1999/02/22-rdf-syntax-ns#');
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$xpath->registerNamespace('slash', 'http://purl.org/rss/1.0/modules/slash/');
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$xpath->registerNamespace('dc', 'http://purl.org/dc/elements/1.1/');
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$xpath->registerNamespace('content', 'http://purl.org/rss/1.0/modules/content/');
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$xpath->registerNamespace('thread', 'http://purl.org/syndication/thread/1.0');
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$this->xpath = $xpath;
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$root = $xpath->query("(//atom03:feed|//atom:feed|//channel|//rdf:rdf|//rdf:RDF)");
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if ($root && $root->length > 0) {
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$root = $root->item(0);
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if ($root) {
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switch (mb_strtolower($root->tagName)) {
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case "rdf:rdf":
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$this->type = $this::FEED_RDF;
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break;
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case "channel":
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$this->type = $this::FEED_RSS;
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break;
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case "feed":
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case "atom:feed":
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$this->type = $this::FEED_ATOM;
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break;
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default:
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if( !isset($this->error) ){
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$this->error = "Unknown/unsupported feed type";
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}
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return;
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}
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return;
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}
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switch ($this->type) {
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case $this::FEED_ATOM:
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$title = $xpath->query("//atom:feed/atom:title")->item(0);
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if (!$title)
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$title = $xpath->query("//atom03:feed/atom03:title")->item(0);
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if ($title) {
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$this->title = $title->nodeValue;
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}
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$link = $xpath->query("//atom:feed/atom:link[not(@rel)]")->item(0);
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if (!$link)
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$link = $xpath->query("//atom:feed/atom:link[@rel='alternate']")->item(0);
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if (!$link)
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$link = $xpath->query("//atom03:feed/atom03:link[not(@rel)]")->item(0);
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if (!$link)
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$link = $xpath->query("//atom03:feed/atom03:link[@rel='alternate']")->item(0);
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if ($link && $link->hasAttributes()) {
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$this->link = $link->getAttribute("href");
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}
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$articles = $xpath->query("//atom:entry");
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if (!$articles || $articles->length == 0)
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$articles = $xpath->query("//atom03:entry");
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foreach ($articles as $article) {
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array_push($this->items, new FeedItem_Atom($article, $this->doc, $this->xpath));
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}
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break;
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case $this::FEED_RSS:
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$title = $xpath->query("//channel/title")->item(0);
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if ($title) {
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$this->title = $title->nodeValue;
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}
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$link = $xpath->query("//channel/link")->item(0);
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if ($link) {
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if ($link->getAttribute("href"))
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$this->link = $link->getAttribute("href");
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else if ($link->nodeValue)
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$this->link = $link->nodeValue;
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}
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$articles = $xpath->query("//channel/item");
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foreach ($articles as $article) {
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array_push($this->items, new FeedItem_RSS($article, $this->doc, $this->xpath));
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}
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break;
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case $this::FEED_RDF:
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$xpath->registerNamespace('rssfake', 'http://purl.org/rss/1.0/');
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$title = $xpath->query("//rssfake:channel/rssfake:title")->item(0);
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if ($title) {
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$this->title = $title->nodeValue;
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}
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$link = $xpath->query("//rssfake:channel/rssfake:link")->item(0);
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if ($link) {
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$this->link = $link->nodeValue;
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}
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$articles = $xpath->query("//rssfake:item");
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foreach ($articles as $article) {
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array_push($this->items, new FeedItem_RSS($article, $this->doc, $this->xpath));
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}
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break;
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}
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if ($this->title) $this->title = trim($this->title);
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if ($this->link) $this->link = trim($this->link);
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} else {
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if( !isset($this->error) ){
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$this->error = "Unknown/unsupported feed type";
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}
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return;
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}
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switch ($this->type) {
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case $this::FEED_ATOM:
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$title = $xpath->query("//atom:feed/atom:title")->item(0);
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if (!$title)
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$title = $xpath->query("//atom03:feed/atom03:title")->item(0);
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if ($title) {
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$this->title = $title->nodeValue;
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}
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$link = $xpath->query("//atom:feed/atom:link[not(@rel)]")->item(0);
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if (!$link)
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$link = $xpath->query("//atom:feed/atom:link[@rel='alternate']")->item(0);
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if (!$link)
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$link = $xpath->query("//atom03:feed/atom03:link[not(@rel)]")->item(0);
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if (!$link)
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$link = $xpath->query("//atom03:feed/atom03:link[@rel='alternate']")->item(0);
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if ($link && $link->hasAttributes()) {
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$this->link = $link->getAttribute("href");
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}
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$articles = $xpath->query("//atom:entry");
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if (!$articles || $articles->length == 0)
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$articles = $xpath->query("//atom03:entry");
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foreach ($articles as $article) {
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array_push($this->items, new FeedItem_Atom($article, $this->doc, $this->xpath));
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}
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break;
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case $this::FEED_RSS:
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$title = $xpath->query("//channel/title")->item(0);
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if ($title) {
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$this->title = $title->nodeValue;
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}
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$link = $xpath->query("//channel/link")->item(0);
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if ($link) {
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if ($link->getAttribute("href"))
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$this->link = $link->getAttribute("href");
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else if ($link->nodeValue)
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$this->link = $link->nodeValue;
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}
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$articles = $xpath->query("//channel/item");
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foreach ($articles as $article) {
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array_push($this->items, new FeedItem_RSS($article, $this->doc, $this->xpath));
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}
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break;
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case $this::FEED_RDF:
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$xpath->registerNamespace('rssfake', 'http://purl.org/rss/1.0/');
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$title = $xpath->query("//rssfake:channel/rssfake:title")->item(0);
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if ($title) {
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$this->title = $title->nodeValue;
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}
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$link = $xpath->query("//rssfake:channel/rssfake:link")->item(0);
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if ($link) {
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$this->link = $link->nodeValue;
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}
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$articles = $xpath->query("//rssfake:item");
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foreach ($articles as $article) {
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array_push($this->items, new FeedItem_RSS($article, $this->doc, $this->xpath));
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}
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break;
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}
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if ($this->title) $this->title = trim($this->title);
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if ($this->link) $this->link = trim($this->link);
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} else {
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if( !isset($this->error) ){
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$this->error = "Unknown/unsupported feed type";
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}
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return;
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}
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}
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function format_error($error) {
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@ -339,7 +339,7 @@ class RSSUtils {
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$date_feed_processed = date('Y-m-d H:i');
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$cache_filename = CACHE_DIR . "/simplepie/" . sha1($fetch_url) . ".xml";
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$cache_filename = CACHE_DIR . "/simplepie/" . sha1($fetch_url);
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$pluginhost = new PluginHost();
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$pluginhost->set_debug($debug_enabled);
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