lbrypress/classes/LBRY_Speech.php

183 lines
5.7 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'), 10, 2);
}
/**
* 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, $post)
{
// Only check post_type of Post
if ('post' !== $post->post_type) {
return;
}
$speech_url = get_option(LBRY_SETTINGS)[LBRY_SPEECH];
// Die if we don't have a spee.ch url
if (!$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 ($all_media) {
foreach ($all_media as $media) {
//// TODO: Check if media type is accepted
$meta = get_post_meta($media->id, '_wp_attachment_metadata', true);
error_log(print_r($meta, true));
if (! get_post_meta($media->id, 'lbry_speech_uploaded')) {
$params = array(
'name' => $media->name,
'file' => $media->file,
'title' => $media->title,
'type' => $media->type
);
if (LBRY_SPEECH_CHANNEL && LBRY_SPEECH_CHANNEL_PASSWORD) {
$params['channelName'] = LBRY_SPEECH_CHANNEL;
$params['channelPassword'] = LBRY_SPEECH_CHANNEL_PASSWORD;
}
$result = $this->request('publish', $params);
error_log(print_r($result, true));
// TODO: Make sure to warn if image name is already taken on channel
if ($result->success) {
update_post_meta($media->id, 'lbry_speech_uploaded', true);
update_post_meta($media->id, 'lbry_speech_url', $result->data->serveUrl);
}
}
}
}
}
/**
* 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)
{
$all_media = array();
// Get content and put into a DOMDocument
$content = apply_filters('the_content', get_post_field('post_content', $post_id));
if (!$content) {
return $all_media;
}
$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(print_r(get_intermediate_image_sizes(), true));
$src = $image->getAttribute('src');
if ($this->is_local($src)) {
$all_media[] = new LBRY_Speech_Media($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 = $source[0]->attributes->getNamedItem('src')->value;
if ($this->is_local($src)) {
$all_media[] = new LBRY_Speech_Media($src);
}
}
return $all_media;
}
/**
* Checks to see if a url is local to this installation
* @param string $url
* @return boolean
*/
private function is_local($url)
{
if (strpos($url, home_url()) !== false) {
return true;
}
return false;
}
/**
* 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;
// 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);
}
}