commit be275ebd28b732d0340c3c2ee93ae10b73b288ba
Author: Pau Capó <pau.capo@gmail.com>
Date:   Mon Mar 13 21:50:57 2017 +0100

    first commit

diff --git a/pau-updater.php b/pau-updater.php
new file mode 100644
index 0000000..e3c3438
--- /dev/null
+++ b/pau-updater.php
@@ -0,0 +1,221 @@
+<?php
+/*
+Plugin Name: Pau-Updater
+Plugin URI: http://www.paucapo.com
+Description: Plugins updater
+Version: 0.1
+Author: Pau Capó
+Author URI:  http://www.paucapo.com
+*/
+
+/*
+TODO:
+* access_token saved for host
+* branches?
+*/
+
+
+
+defined( 'ABSPATH' ) or exit;
+
+class Pau_Updater {
+   public $update_data = array();
+   public $active_plugins = array();
+
+
+   function __construct() {
+      add_action( 'admin_init', array( $this, 'admin_init' ) );
+      add_filter( 'plugins_api', array( $this, 'plugins_api' ), 10, 3 );
+      add_filter( 'pre_set_site_transient_update_plugins', array( $this, 'set_update_data' ) );
+      add_filter( 'upgrader_source_selection', array( $this, 'upgrader_source_selection' ), 10, 4 );
+      add_filter( 'extra_plugin_headers', array( $this, 'extra_plugin_headers' ) );
+   }
+
+
+   function admin_init() {
+      $now = strtotime( 'now' );
+      $last_checked = (int) get_option( 'ghu_last_checked' );
+      $check_interval = 0;//apply_filters( 'ghu_check_interval', ( 60 * 60 * 12 ) );
+      $this->update_data = (array) get_option( 'ghu_update_data' );
+      $active = (array) get_option( 'active_plugins' );
+
+      foreach ( $active as $slug ) {
+         $this->active_plugins[ $slug ] = true;
+      }
+
+      // transient expiration
+      if ( ( $now - $last_checked ) > $check_interval ) {
+         $this->update_data = $this->get_gitea_updates();
+
+         update_option( 'ghu_update_data', $this->update_data );
+         update_option( 'ghu_last_checked', $now );
+      }
+   }
+
+   function get_gitea_updates() {
+      $plugin_data = array();
+      $plugins = get_plugins();
+      foreach ( $plugins as $slug => $info ) {
+         if ( isset( $this->active_plugins[ $slug ] ) && ! empty( $info['Gitea URI'] ) && ! empty( $info['Gitea Host'] ) ) {
+            $temp = array(
+               'plugin'            => $slug,
+               'slug'              => trim( dirname( $slug ), '/' ),
+               'file'              => basename($slug),
+               'name'              => $info['Name'],
+               'gitea_host'        => $info['Gitea Host'],
+               'gitea_repo'        => $info['Gitea URI'],
+               'description'       => $info['Description'],
+            );
+
+
+            // TODO
+            $access_token = '9ebc78834767d2ce0f95ec8a5ab597bc1fbc9ed6';
+
+            $url = $temp['gitea_host'].'api/v1/repos/'.$temp['gitea_repo'].'/raw/master/'.$temp['file'].'?access_token='.$access_token;
+            $request = wp_remote_get( $url );
+
+            // WP error or rate limit exceeded
+            if ( is_wp_error( $request ) || 200 != wp_remote_retrieve_response_code( $request ) ) {
+               break;
+            }
+
+            $headers = $this->get_file_headers($request['body'], 'plugin');
+
+            $temp['new_version'] = $headers['Version'];
+            $temp['url'] = $temp['gitea_host'].$temp['gitea_repo'];
+            $temp['package'] = $temp['gitea_host'].'api/v1/repos/'.$temp['gitea_repo'].'/archive/master.zip?access_token='.$access_token;
+
+            $plugin_data[ $slug ] = $temp;
+         }
+      }
+
+      return $plugin_data;
+   }
+
+   function get_file_headers( $contents, $type ) {
+
+      $gitea_headers = array(
+         'GiteaHost' => 'Gitea Host',
+         'GiteaUri' => 'Gitea URI',
+      );
+
+      $default_plugin_headers = array(
+         'Name'        => 'Plugin Name',
+         'PluginURI'   => 'Plugin URI',
+         'Version'     => 'Version',
+         'Description' => 'Description',
+         'Author'      => 'Author',
+         'AuthorURI'   => 'Author URI',
+         'TextDomain'  => 'Text Domain',
+         'DomainPath'  => 'Domain Path',
+         'Network'     => 'Network',
+      );
+
+      $default_theme_headers = array(
+         'Name'        => 'Theme Name',
+         'ThemeURI'    => 'Theme URI',
+         'Description' => 'Description',
+         'Author'      => 'Author',
+         'AuthorURI'   => 'Author URI',
+         'Version'     => 'Version',
+         'Template'    => 'Template',
+         'Status'      => 'Status',
+         'Tags'        => 'Tags',
+         'TextDomain'  => 'Text Domain',
+         'DomainPath'  => 'Domain Path',
+      );
+
+      if ( false !== strpos( $type, 'plugin' ) ) {
+         $all_headers = $default_plugin_headers;
+      }
+
+      if ( false !== strpos( $type, 'theme' ) ) {
+         $all_headers = $default_theme_headers;
+      }
+
+      $file_data = str_replace( "\r", "\n", $contents );
+
+      $all_headers = array_merge( $gitea_headers, (array) $all_headers );
+      $all_headers = array_unique( $all_headers );
+
+      foreach ( $all_headers as $field => $regex ) {
+         if ( preg_match( '/^[ \t\/*#@]*' . preg_quote( $regex, '/' ) . ':(.*)$/mi', $file_data, $match ) && $match[1] ) {
+            $all_headers[ $field ] = _cleanup_header_comment( $match[1] );
+         } else {
+            $all_headers[ $field ] = '';
+         }
+      }
+
+      $all_headers = array_filter( $all_headers,
+         function( $e ) use ( &$all_headers ) {
+            return ! empty( $e );
+         } );
+
+      return $all_headers;
+   }
+
+   function plugins_api( $default = false, $action, $args ) {
+      if ( 'plugin_information' == $action ) {
+         if ( isset( $this->update_data[ $args->slug ] ) ) {
+            $plugin = $this->update_data[ $args->slug ];
+
+            return (object) array(
+               'name'          => $plugin['name'],
+               'slug'          => $plugin['plugin'],
+               'version'       => $plugin['new_version'],
+               'requires'      => '4.4',
+               'tested'        => get_bloginfo( 'version' ),
+               'last_updated'  => date( 'Y-m-d' ),
+               'sections' => array(
+                  'description' => $plugin['description']
+               )
+            );
+         }
+      }
+
+      return $default;
+   }
+
+
+   function set_update_data( $transient ) {
+      if ( empty( $transient->checked ) ) {
+         return $transient;
+      }
+
+      foreach ( $this->update_data as $plugin => $info ) {
+         if ( isset( $this->active_plugins[ $plugin ] ) ) {
+            $plugin_data = get_plugin_data( WP_PLUGIN_DIR . '/' . $plugin );
+            $version = $plugin_data['Version'];
+
+            if ( version_compare( $version, $info['new_version'], '<' ) ) {
+               $transient->response[ $plugin ] = (object) $info;
+            }
+         }
+      }
+
+      return $transient;
+   }
+
+
+   function upgrader_source_selection( $source, $remote_source, $upgrader, $hook_extra = null ) {
+      global $wp_filesystem;
+
+      $plugin = isset( $hook_extra['plugin'] ) ? $hook_extra['plugin'] : false;
+      if ( isset( $this->update_data[ $plugin ] ) && $plugin ) {
+         $new_source = trailingslashit( $remote_source ) . dirname( $plugin );
+         $wp_filesystem->move( $source, $new_source );
+         return trailingslashit( $new_source );
+      }
+
+      return $source;
+   }
+
+   function extra_plugin_headers( $headers ) {
+      $headers[] = 'Gitea URI';
+      $headers[] = 'Gitea Host';
+      return $headers;
+   }
+
+}
+
+new Pau_Updater();
\ No newline at end of file