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| <?php | |
| /* | |
| Plugin Name: Theme Updater | |
| Plugin URI: https://github.com/UCF/Theme-Updater | |
| Description: A theme updater for GitHub hosted Wordpress themes. This Wordpress plugin automatically checks GitHub for theme updates and enables automatic install. For more information read <a href="https://github.com/UCF/Theme-Updater/blob/master/readme.markdown">plugin documentation</a>. | |
| Author: Douglas Beck | |
| Author: UCF Web Communications | |
| Version: 1.3.4 | |
| */ | |
| require_once('assets.php'); | |
| // register the custom stylesheet header | |
| add_action( 'extra_theme_headers', 'github_extra_theme_headers' ); | |
| function github_extra_theme_headers( $headers ) { | |
| $headers['Github Theme URI'] = 'Github Theme URI'; | |
| return $headers; | |
| } | |
| add_filter('site_transient_update_themes', 'transient_update_themes_filter'); | |
| function transient_update_themes_filter($data){ | |
| $installed_themes = get_themes( ); | |
| foreach ( (array) $installed_themes as $theme_title => $theme ) { | |
| // get the Github URI header, skip if not set | |
| if(isset($theme['Stylesheet Files'][0]) && is_readable($theme['Stylesheet Files'][0])){ | |
| $stylesheet = $theme['Stylesheet Dir'] . '/style.css'; | |
| $theme_data = get_theme_data($stylesheet); | |
| if(empty($theme_data['Github Theme URI'])){ | |
| continue; | |
| } | |
| } | |
| $theme['Github Theme URI'] = $theme_data['Github Theme URI']; | |
| $theme_key = $theme['Stylesheet']; | |
| // Add Github Theme Updater to return $data and hook into admin | |
| remove_action( "after_theme_row_" . $theme['Stylesheet'], 'wp_theme_update_row'); | |
| add_action( "after_theme_row_" . $theme['Stylesheet'], 'github_theme_update_row', 11, 2 ); | |
| // Grab Github Tags | |
| preg_match( | |
| '/http(s)?:\/\/github.com\/(?<username>[\w-]+)\/(?<repo>[\w-]+)\/(?<branch>[\w-]+)$/', | |
| $theme['Github Theme URI'], | |
| $matches); | |
| if(!isset($matches['username']) or !isset($matches['repo']) or !isset($matches['branch'])){ | |
| $data->response[$theme_key]['error'] = 'Incorrect github project url. Format should be (no trailing slash): <code style="background:#FFFBE4;">https://github.com/<username>/<repo></code>'; | |
| continue; | |
| } | |
| $url = 'https://api.github.com/repos/' . | |
| // $matches['username'] . '/' . $matches['repo'] . '/' . $matches['branch'] . '/tags'; | |
| $matches['username'] . '/' . $matches['repo'] . '/tags'; | |
| $response = get_transient(md5($url)); // Note: WP transients fail if key is long than 45 characters | |
| if(empty($response)){ | |
| $raw_response = wp_remote_get($url, array('sslverify' => false, 'timeout' => 10)); | |
| if ( is_wp_error( $raw_response ) ){ | |
| $data->response[$theme_key]['error'] = "Error response from " . $url; | |
| continue; | |
| } | |
| $response = json_decode($raw_response['body']); | |
| if(isset($response->error)){ | |
| if(is_array($response->error)){ | |
| $errors = ''; | |
| foreach ( $response->error as $error) { | |
| $errors .= ' ' . $error; | |
| } | |
| } else { | |
| $errors = print_r($response->error, true); | |
| } | |
| $data->response[$theme_key]['error'] = sprintf('While <a href="%s">fetching tags</a> api error</a>: <span class="error">%s</span>', $url, $errors); | |
| continue; | |
| } | |
| if(!isset($response->tags) or count(get_object_vars($response->tags)) < 1){ | |
| $data->response[$theme_key]['error'] = "Github theme does not have any tags"; | |
| continue; | |
| } | |
| //set cache, just 60 seconds | |
| set_transient(md5($url), $response, 30); | |
| } | |
| // Sort and get latest tag | |
| $tags = array_keys(get_object_vars($response->tags)); | |
| usort($tags, "version_compare"); | |
| // check for rollback | |
| if(isset($_GET['rollback'])){ | |
| $data->response[$theme_key]['package'] = | |
| $theme['Github Theme URI'] . '/zipball/' . $matches['branch'] . '/' . urlencode($_GET['rollback']); | |
| continue; | |
| } | |
| // check and generate download link | |
| $newest_tag = array_pop($tags); | |
| if(version_compare($theme['Version'], $newest_tag, '>=')){ | |
| // up-to-date! | |
| $data->up_to_date[$theme_key]['rollback'] = $tags; | |
| continue; | |
| } | |
| // new update available, add to $data | |
| $download_link = $theme['Github Theme URI'] . '/zipball/' . $matches['branch'] . '/' . $newest_tag; | |
| $update = array(); | |
| $update['new_version'] = $newest_tag; | |
| $update['url'] = $theme['Github Theme URI']; | |
| $update['package'] = $download_link; | |
| $data->response[$theme_key] = $update; | |
| } | |
| return $data; | |
| } | |
| add_filter('upgrader_source_selection', 'upgrader_source_selection_filter', 10, 3); | |
| function upgrader_source_selection_filter($source, $remote_source=NULL, $upgrader=NULL){ | |
| /* | |
| Github delivers zip files as <Username>-<TagName>-<Hash>.zip | |
| must rename this zip file to the accurate theme folder | |
| */ | |
| if(isset($source, $remote_source, $upgrader->skin->theme)){ | |
| $corrected_source = $remote_source . '/' . $upgrader->skin->theme . '/'; | |
| if(@rename($source, $corrected_source)){ | |
| return $corrected_source; | |
| } else { | |
| $upgrader->skin->feedback("Unable to rename downloaded theme."); | |
| return new WP_Error(); | |
| } | |
| } | |
| return $source; | |
| } | |
| /* | |
| Function to address the issue that users in a standalone WordPress installation | |
| were receiving SSL errors and were unable to install themes. | |
| https://github.com/UCF/Theme-Updater/issues/3 | |
| */ | |
| add_action('http_request_args', 'no_ssl_http_request_args', 10, 2); | |
| function no_ssl_http_request_args($args, $url) { | |
| $args['sslverify'] = false; | |
| return $args; | |
| } |
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https://github.com/<username>/<repo>'; continue; } $url = 'https://github.com/api/v2/json/repos/show/' . $matches['username'] . '/' . $matches['repo'] . '/tags'; $response = get_transient(md5($url)); // Note: WP transients fail if key is long than 45 characters if(empty($response)){ $raw_response = wp_remote_get($url, array('sslverify' => false, 'timeout' => 10)); if ( is_wp_error( $raw_response ) ){ $data->response[$theme_key]['error'] = "Error response from " . $url; continue; } $response = json_decode($raw_response['body']); if(isset($response->error)){ if(is_array($response->error)){ $errors = ''; foreach ( $response->error as $error) { $errors .= ' ' . $error; } } else { $errors = print_r($response->error, true); } $data->response[$theme_key]['error'] = sprintf('While fetching tags api error: %s', $url, $errors); continue; } if(!isset($response->tags) or count(get_object_vars($response->tags)) < 1){ $data->response[$theme_key]['error'] = "Github theme does not have any tags"; continue; } //set cache, just 60 seconds set_transient(md5($url), $response, 30); } // Sort and get latest tag $tags = array_keys(get_object_vars($response->tags)); usort($tags, "version_compare"); // check for rollback if(isset($_GET['rollback'])){ $data->response[$theme_key]['package'] = $theme['Github Theme URI'] . '/zipball/' . urlencode($_GET['rollback']); continue; } // check and generate download link $newest_tag = array_pop($tags); if(version_compare($theme['Version'], $newest_tag, '>=')){ // up-to-date! $data->up_to_date[$theme_key]['rollback'] = $tags; continue; } // new update available, add to $data $download_link = $theme['Github Theme URI'] . '/zipball/' . $newest_tag; $update = array(); $update['new_version'] = $newest_tag; $update['url'] = $theme['Github Theme URI']; $update['package'] = $download_link; $data->response[$theme_key] = $update; } return $data; ``` } add_filter('upgrader_source_selection', 'upgrader_source_selection_filter', 10, 3); function upgrader_source_selection_filter($source, $remote_source=NULL, $upgrader=NULL){ /* Github delivers zip files as --.zip must rename this zip file to the accurate theme folder */ if(isset($source, $remote_source, $upgrader->skin->theme)){ $corrected_source = $remote_source . '/' . $upgrader->skin->theme . '/'; if(@rename($source, $corrected_source)){ return $corrected_source; } else { $upgrader->skin->feedback("Unable to rename downloaded theme."); return new WP_Error(); } } return $source; } /* Function to address the issue that users in a standalone WordPress installation were receiving SSL errors and were unable to install themes. https://github.com/UCF/Theme-Updater/issues/3 */ add_action('http_request_args', 'no_ssl_http_request_args', 10, 2); function no_ssl_http_request_args($args, $url) { $args['sslverify'] = false; return $args; }