<?php
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namespace p3k\XRay\Formats;
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use HTMLPurifier, HTMLPurifier_Config;
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use DOMDocument, DOMXPath;
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use p3k\XRay\Formats;
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class JSONFeed extends Format {
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public static function matches_host($url) { return true; }
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public static function matches($url) { return true; }
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public static function parse($http_response) {
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$feed = $http_response['body'];
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$url = $http_response['url'];
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$result = [
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'data' => [
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'type' => 'unknown',
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],
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'url' => $url,
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'source-format' => 'feed+json',
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];
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if($feed) {
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$result['data']['type'] = 'feed';
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foreach($feed['items'] as $item) {
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$result['data']['items'][] = self::_hEntryFromFeedItem($item, $feed, $url);
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}
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}
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return $result;
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}
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private static function _hEntryFromFeedItem($item, $feed, $feedurl) {
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$entry = [
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'type' => 'entry',
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'author' => [
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'name' => null,
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'url' => null,
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'photo' => null
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]
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];
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// First use the feed title/icon/url as author info
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if(isset($feed['home_page_url']))
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$entry['author']['url'] = $feed['home_page_url'];
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if(isset($feed['title']))
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$entry['author']['name'] = $feed['title'];
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if(isset($feed['icon']))
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$entry['author']['photo'] = $feed['icon'];
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// If the feed has an author, use that instead
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if(isset($feed['author'])) {
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if(isset($feed['author']['url']))
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$entry['author']['url'] = $feed['author']['url'];
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if(isset($feed['author']['name']))
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$entry['author']['name'] = $feed['author']['name'];
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if(isset($feed['author']['avatar']))
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$entry['author']['photo'] = $feed['author']['avatar'];
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}
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// Override the author if the item contains author info
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if(isset($item['author'])) {
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if(isset($item['author']['name']))
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$entry['author']['name'] = $item['author']['name'];
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if(isset($item['author']['url']))
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$entry['author']['url'] = $item['author']['url'];
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if(isset($item['author']['avatar']))
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$entry['author']['photo'] = $item['author']['avatar'];
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}
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// JSONFeed 1.1 uses "authors" instead
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if(isset($feed['authors'][0])) {
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// We only support 1 author
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$author = $feed['authors'][0];
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if(isset($author['url']))
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$entry['author']['url'] = $author['url'];
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if(isset($author['name']))
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$entry['author']['name'] = $author['name'];
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if(isset($author['avatar']))
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$entry['author']['photo'] = $author['avatar'];
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}
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if(isset($item['authors'][0])) {
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$author = $item['authors'][0];
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if(isset($author['url']))
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$entry['author']['url'] = $author['url'];
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if(isset($author['name']))
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$entry['author']['name'] = $author['name'];
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if(isset($author['avatar']))
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$entry['author']['photo'] = $author['avatar'];
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}
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if(isset($item['url']))
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$entry['url'] = $item['url'];
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if(isset($item['id']))
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$entry['uid'] = $item['id'];
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if(isset($item['title']) && trim($item['title']))
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$entry['name'] = trim($item['title']);
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$baseURL = isset($entry['url']) ? $entry['url'] : $feedurl;
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if(isset($item['content_html']) && isset($item['content_text'])) {
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$entry['content'] = [
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'html' => self::sanitizeHTML($item['content_html'], true, $baseURL),
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'text' => trim($item['content_text'])
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];
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} elseif(isset($item['content_html'])) {
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$entry['content'] = [
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'html' => self::sanitizeHTML($item['content_html'], true, $baseURL),
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'text' => self::stripHTML($item['content_html'])
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];
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} elseif(isset($item['content_text'])) {
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$entry['content'] = [
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'text' => trim($item['content_text'])
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];
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}
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if(isset($item['summary'])) {
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$entry['summary'] = $item['summary'];
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}
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if(isset($item['date_published'])) {
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$entry['published'] = $item['date_published'];
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}
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if(isset($item['date_modified'])) {
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$entry['updated'] = $item['date_modified'];
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}
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if(isset($item['image'])) {
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$entry['photo'] = [\Mf2\resolveUrl($baseURL, $item['image'])];
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}
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if(isset($item['tags'])) {
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$entry['category'] = $item['tags'];
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}
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$entry['post-type'] = \p3k\XRay\PostType::discover($entry);
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return $entry;
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}
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}
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