lbrypress/classes/LBRY_Speech.php

149 lines
4.7 KiB
PHP

<?php
/**
* Connects to an spee.ch style server to host assets via the LBRY Protocol
*
* Visit https://github.com/lbryio/spee.ch for more info
*
* @package LBRYPress
*/
class LBRY_Speech
{
/**
* HTML Parser
* @var LBRY_Speech_Parser
*/
private $parser = null;
public function __construct()
{
$this->parser = new LBRY_Speech_Parser();
add_action('save_post', array($this, 'upload_media'));
}
/**
* Checks to see if we need to rewrite URLS, does if necessary
*/
public function maybe_rewrite_urls()
{
// See if we have a Spee.ch URL and if we are on the front-end
$speech_url = get_option(LBRY_SETTINGS)[LBRY_SPEECH];
if ($speech_url != '' && !is_admin()) {
ob_start(array($this->parser, 'rewrite'));
}
}
/**
* Uploads assets to the speech server
* @param int $post_id The ID of the post to
* @return bool True if successful, false if not or if no Speech URL available
*/
// TODO: set up error reporting
public function upload_media($post_id)
{
$speech_url = get_option(LBRY_SETTINGS)[LBRY_SPEECH];
// Die if we don't have a spee.ch url
if (!$speech_url || $speech_url === '') {
return false;
}
$all_media = $this->find_media($post_id);
// IDEA: Notify user if post save time will take a while, may be a concern for request timeouts
if ($all_media) {
// error_log(print_r($all_media, true));
foreach ($all_media as $media) {
// TODO: set post meta to see if already uploaded
// Create a CURLFile object to pass our attachments to the spee.ch instance
// $file_url = get_attached_file($attachment->ID);
// $file_name = wp_basename($file_url);
// $file_type = $attachment->post_mime_type;
// $cfile = new CURLFile($file_url, $file_type, $file_name);
//
// $params = array(
// 'name' => $attachment->post_name,
// 'file' => $cfile,
// 'title' => $attachment->post_title,
// 'type' => $file_type
// );
//
// $result = $this->request('publish', $params);
// error_log(print_r($result, true));
// TODO: Make sure to warn if image name is already taken on channel
}
}
}
/**
* Finds all media attached to a post
* @param int $post_id The post to search
* @return array An array of Speech Media Objects
*/
protected function find_media($post_id)
{
// Get content and put into a DOMDocument
$content = apply_filters('the_content', get_post_field('post_content', $post_id));
$DOM = new DOMDocument();
// Hide HTML5 Tag warnings
libxml_use_internal_errors(true);
$DOM->loadHTML($content);
$images = $DOM->getElementsByTagName('img');
$videos = $DOM->getElementsByTagName('video');
// Get each image attribute
foreach ($images as $image) {
error_log($image->getAttribute('src'));
}
// Parse video tags based on wordpress output for local embedds
// Because video tag is HTML5, treat it like an XML node
foreach ($videos as $video) {
$source = $video->getElementsByTagName('source');
$src = $source[0]->attributes->getNamedItem('src')->value;
error_log($src);
}
return;
}
/**
* Sends a cURL request to the Speech URL
* @param string $method The method to call on the Speech API
* @param array $params The Parameters to send the Speech API Call
* @return string The cURL response
*/
private function request($method, $params = array())
{
$speech_url = get_option(LBRY_SETTINGS)[LBRY_SPEECH];
// Die if no URL
if (!$speech_url) {
return;
}
$address = $speech_url . '/api/claim/' . $method;
error_log(print_r($params, true));
// Send it via curl
$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, $address);
curl_setopt($ch, CURLOPT_POST, true);
curl_setopt($ch, CURLOPT_POSTFIELDS, $params);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
curl_setopt($ch, CURLOPT_AUTOREFERER, false);
curl_setopt($ch, CURLOPT_HTTP_VERSION, CURL_HTTP_VERSION_1_1);
curl_setopt($ch, CURLOPT_SAFE_UPLOAD, true);
curl_setopt($ch, CURLOPT_HEADER, false);
$result = curl_exec($ch);
curl_close($ch);
return json_decode($result);
}
}