✨😈☝️ pull request preview playground #666
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| # ---------------------------------------------------------------------- | ||
| # Proper MIME type for plugin-proxy.php | ||
| # ---------------------------------------------------------------------- | ||
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| # # zip | ||
| # AddType application/zip zip | ||
| # AddType application/zip .zip | ||
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| <IfModule mod_headers.c> | ||
| # THIS IS IMPORTANT | ||
| # The missing piece I was hunting for 2 days. | ||
| # | ||
| # TODO # WEIRD | ||
| # Having this here DOES WORK, | ||
| # the exact same line DOES NOT WORK when placed in plugin-proxy.php. | ||
| Header set Content-Disposition "attachment; filename=\"gatherpress-pr.zip\"" | ||
| </IfModule> |
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| <?php | ||
| /** | ||
| * https://gatherpress.org/some-random-chars/plugin-proxy.php?org=GatherPress&repo=gatherpress&workflow=Build%20GatherPress%20Plugin%20Zip&artifact=gatherpress-pr&pr=666 | ||
| * | ||
| * | ||
| * Based on: https://github.com/WordPress/wordpress-playground/blob/ca759ee3281837596bfdd9736bbea205104741b2/packages/playground/website/public/plugin-proxy.php | ||
| */ | ||
| ini_set( 'display_errors', 0 ); | ||
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| putenv( 'GITHUB_TOKEN=___REPLACE_WITH_REAL_GITHUB_TOKEN___' ); | ||
|
There was a problem hiding this comment. Replace Only in PRODUCTION on gatherpress.org, NOT here in the repo! |
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| class ApiException extends Exception { | ||
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| } | ||
| class PluginDownloader { | ||
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| private $githubToken; | ||
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| public function __construct( $githubToken ) { | ||
| $this->githubToken = $githubToken; | ||
| } | ||
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| public function streamFromGithubPR( $organization, $repo, $pr, $workflow_name, $artifact_name ) { | ||
| $prDetails = $this->gitHubRequest( "https://api.github.com/repos/$organization/$repo/pulls/$pr" )['body']; | ||
| if ( ! $prDetails ) { | ||
| throw new ApiException( 'invalid_pr_number' ); | ||
| } | ||
| $branchName = urlencode( $prDetails->head->ref ); | ||
| $ciRuns = $this->gitHubRequest( "https://api.github.com/repos/$organization/$repo/actions/runs?branch=$branchName" )['body']; | ||
| if ( ! $ciRuns ) { | ||
| throw new ApiException( 'no_ci_runs' ); | ||
| } | ||
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| $artifactsUrls = []; | ||
| foreach ( $ciRuns->workflow_runs as $run ) { | ||
| if ( $run->name === $workflow_name ) { | ||
| $artifactsUrls[] = $run->artifacts_url; | ||
| } | ||
| } | ||
| if ( ! $artifactsUrls ) { | ||
| throw new ApiException( 'artifact_not_found' ); | ||
| } | ||
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| foreach ( $artifactsUrls as $artifactsUrl ) { | ||
| $zip_download_api_endpoint = $zip_url = null; | ||
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| $artifacts = $this->gitHubRequest( $artifactsUrl )['body']; | ||
| if ( ! $artifacts ) { | ||
| continue; | ||
| } | ||
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| foreach ( $artifacts->artifacts as $artifact ) { | ||
| if ( $artifact_name === $artifact->name ) { | ||
| if ( $artifact->size_in_bytes < 3000 ) { | ||
| throw new ApiException( 'artifact_invalid' ); | ||
| } | ||
| $zip_download_api_endpoint = $artifact->archive_download_url; | ||
| break; | ||
| } | ||
| } | ||
| if ( ! $zip_download_api_endpoint ) { | ||
| continue; | ||
| } | ||
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| /* | ||
| * Short-circuit with HTTP 200 OK when we only want to | ||
| * verify whether the CI artifact seems to exist but we | ||
| * don't want to download it yet. | ||
| */ | ||
| if ( array_key_exists( 'verify_only', $_GET ) ) { | ||
| header( 'HTTP/1.1 200 OK' ); | ||
| return; | ||
| } | ||
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| $allowed_headers = array( | ||
| // 'accept-ranges', | ||
| 'content-disposition', | ||
| 'content-length', | ||
| // 'content-type', | ||
| 'x-frame-options', | ||
| 'last-modified', | ||
| 'etag', | ||
| 'date', | ||
| 'age', | ||
| 'vary', | ||
| 'cache-Control', | ||
| ); | ||
| $artifact_res = $this->gitHubRequest( $zip_download_api_endpoint, false, false ); | ||
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| // die(var_export($artifact_res['headers'],true)); | ||
| ob_end_flush(); | ||
| flush(); | ||
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| // The API endpoint returns the actual artifact URL as a 302 Location header. | ||
| foreach ( $artifact_res['headers'] as $header_line ) { | ||
| $header_name = strtolower( substr( $header_line, 0, strpos( $header_line, ':' ) ) ); | ||
| $header_value = trim( substr( $header_line, 1 + strpos( $header_line, ':' ) ) ); | ||
| if ( $header_name === 'location' ) { | ||
| streamHttpResponse( | ||
| $header_value, | ||
| 'GET', | ||
| [], | ||
| null, | ||
| $allowed_headers, | ||
| [ | ||
| 'Content-Type: application/zip', | ||
| // TODO // WEIRD | ||
| // Having this here DOES NOT WORK, | ||
| // the exact same line needs to be placed in .htaccess. | ||
| // 'Content-Disposition: attachment; filename="gatherpress-pr.zip"', | ||
| ] | ||
| ); | ||
| die(); | ||
| } | ||
| } | ||
| throw new ApiException( 'artifact_redirect_not_present' ); | ||
| } | ||
| if ( ! $artifacts ) { | ||
| throw new ApiException( 'artifact_not_available' ); | ||
| } | ||
| if ( ! $zip_download_api_endpoint ) { | ||
| throw new ApiException( 'artifact_not_available' ); | ||
| } | ||
| if ( ! $zip_url ) { | ||
| throw new ApiException( 'artifact_not_available' ); | ||
| } | ||
| } | ||
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| protected function gitHubRequest( $url, $decode = true, $follow_location = true ) { | ||
| $headers[] = 'User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/80.0.3987.132 Safari/537.36'; | ||
| $headers[] = 'Authorization: Bearer ' . $this->githubToken; | ||
| $context = stream_context_create( | ||
| [ | ||
| 'http' => [ | ||
| 'method' => 'GET', | ||
| 'header' => implode( "\r\n", $headers ), | ||
| 'follow_location' => $follow_location, | ||
| ], | ||
| ] | ||
| ); | ||
| $response = file_get_contents( $url, false, $context ); | ||
| if ( $response === false ) { | ||
| throw new ApiException( 'Request failed' ); | ||
| } | ||
| // Find the last index of "HTTP/1.1 200 OK" in $http_response_header array | ||
| for ( $i = count( $http_response_header ) - 1; $i >= 0; $i-- ) { | ||
| if ( substr( $http_response_header[ $i ], 0, 12 ) === 'HTTP/1.1 200' ) { | ||
| break; | ||
| } | ||
| } | ||
| $headers = array_map( 'trim', array_slice( $http_response_header, $i + 1 ) ); | ||
| return [ | ||
| 'body' => $decode ? json_decode( $response ) : $response, | ||
| 'headers' => $headers, | ||
| ]; | ||
| } | ||
| } | ||
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| function streamHttpResponse( $url, $request_method = 'GET', $request_headers = [], $request_body = null, $allowed_response_headers = [], $default_response_headers = [] ) { | ||
| $ch = curl_init( $url ); | ||
| curl_setopt_array( | ||
| $ch, | ||
| [ | ||
| CURLOPT_RETURNTRANSFER => true, | ||
| CURLOPT_CONNECTTIMEOUT => 30, | ||
| CURLOPT_FAILONERROR => true, | ||
| CURLOPT_FOLLOWLOCATION => true, | ||
| ] | ||
| ); | ||
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| if ( $request_method === 'POST' ) { | ||
| curl_setopt( $ch, CURLOPT_POST, true ); | ||
| curl_setopt( $ch, CURLOPT_POSTFIELDS, $request_body ); | ||
| } elseif ( $request_method === 'HEAD' ) { | ||
| curl_setopt( $ch, CURLOPT_NOBODY, true ); | ||
| } | ||
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| if ( count( $request_headers ) ) { | ||
| curl_setopt( $ch, CURLOPT_HTTPHEADER, $request_headers ); | ||
| } | ||
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| $seen_headers = []; | ||
| curl_setopt( | ||
| $ch, | ||
| CURLOPT_HEADERFUNCTION, | ||
| function ( $curl, $header_line ) use ( $seen_headers, $allowed_response_headers ) { | ||
| if ( strpos( $header_line, ':' ) === false ) { | ||
| return strlen( $header_line ); | ||
| } | ||
| $header_name = strtolower( substr( $header_line, 0, strpos( $header_line, ':' ) ) ); | ||
| $seen_headers[ $header_name ] = true; | ||
| $illegal_headers = [ 'transfer-encoding' ]; | ||
| $header_allowed = ( | ||
| null === $allowed_response_headers || in_array( $header_name, $allowed_response_headers ) | ||
| ) && ! in_array( $header_name, $illegal_headers ); | ||
| if ( $header_allowed ) { | ||
| header( $header_line ); | ||
| } | ||
| return strlen( $header_line ); | ||
| } | ||
| ); | ||
| $extra_headers_sent = false; | ||
| curl_setopt( | ||
| $ch, | ||
| CURLOPT_WRITEFUNCTION, | ||
| function ( $curl, $body ) use ( &$extra_headers_sent, $default_response_headers ) { | ||
| if ( ! $extra_headers_sent ) { | ||
| foreach ( $default_response_headers as $header_line ) { | ||
| $header_name = strtolower( substr( $header_line, 0, strpos( $header_line, ':' ) ) ); | ||
| if ( ! isset( $seen_headers[ $header_name ] ) ) { | ||
| header( $header_line ); | ||
| } | ||
| } | ||
| $extra_headers_sent = true; | ||
| } | ||
| echo $body; | ||
| flush(); | ||
| return strlen( $body ); | ||
| } | ||
| ); | ||
| curl_exec( $ch ); | ||
| $info = curl_getinfo( $ch ); | ||
| curl_close( $ch ); | ||
| return $info; | ||
| } | ||
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| $downloader = new PluginDownloader( | ||
| getenv( 'GITHUB_TOKEN' ) | ||
| ); | ||
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| // Serve the request: | ||
| if ( ! array_key_exists( 'url', $_GET ) ) { | ||
| header( 'Access-Control-Allow-Origin: *' ); | ||
| } | ||
| $pluginResponse; | ||
| try { | ||
| if ( isset( $_GET['org'] ) && isset( $_GET['repo'] ) && isset( $_GET['workflow'] ) && isset( $_GET['pr'] ) && isset( $_GET['artifact'] ) ) { | ||
| $allowedInputs = [ | ||
| [ | ||
| 'org' => 'GatherPress', | ||
| 'repo' => 'gatherpress', | ||
| 'workflow' => 'Playground Preview', | ||
| 'artifact' => '#gatherpress-pr#', | ||
| ], | ||
| ]; | ||
| $allowed = false; | ||
| foreach ( $allowedInputs as $allowedInput ) { | ||
| if ( | ||
| $_GET['org'] === $allowedInput['org'] && | ||
| $_GET['repo'] === $allowedInput['repo'] && | ||
| $_GET['workflow'] === $allowedInput['workflow'] && | ||
| preg_match( $allowedInput['artifact'], $_GET['artifact'] ) | ||
| ) { | ||
| $allowed = true; | ||
| break; | ||
| } | ||
| } | ||
| if ( ! $allowed ) { | ||
| header( 'HTTP/1.1 400 Invalid request' ); | ||
| die( 'Invalid request: The specified URL is not allowed.' ); | ||
| } | ||
| $downloader->streamFromGithubPR( | ||
| $_GET['org'], | ||
| $_GET['repo'], | ||
| $_GET['pr'], | ||
| $_GET['workflow'], | ||
| $_GET['artifact'] | ||
| ); | ||
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| // ** | ||
| // * Pass through the request headers we got from WordPress via fetch(), | ||
| // * then filter out: | ||
| // * | ||
| // * * The browser-specific headers | ||
| // * * Headers related to security to avoid leaking any auth information | ||
| // * | ||
| // * ...and pass the rest to the proxied request. | ||
| // * | ||
| // * @return array | ||
| // */ | ||
| // function get_request_headers() | ||
| // { | ||
| // $headers = []; | ||
| // foreach ($_SERVER as $name => $value) { | ||
| // if (substr($name, 0, 5) !== 'HTTP_') { | ||
| // continue; | ||
| // } | ||
| // $name = str_replace(' ', '-', ucwords(str_replace('_', ' ', strtolower(substr($name, 5))))); | ||
| // $lcname = strtolower($name); | ||
| // if ( | ||
| // $lcname === 'authorization' | ||
| // || $lcname === 'cookie' | ||
| // || $lcname === 'host' | ||
| // || $lcname === 'origin' | ||
| // || $lcname === 'referer' | ||
| // || 0 === strpos($lcname, 'sec-') | ||
| // ) { | ||
| // continue; | ||
| // } | ||
| // $headers[$name] = $value; | ||
| // } | ||
| // return $headers; | ||
| // } | ||
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| // streamHttpResponse( | ||
| // $url, | ||
| // $_SERVER['REQUEST_METHOD'], | ||
| // get_request_headers(), | ||
| // file_get_contents('php://input'), | ||
| // null | ||
| // ); | ||
| } else { | ||
| throw new ApiException( 'Invalid query parameters' ); | ||
| } | ||
| } catch ( ApiException $e ) { | ||
| header( 'HTTP/1.1 400 Invalid request' ); | ||
| if ( ! headers_sent() ) { | ||
| header( 'Content-Type: application/json' ); | ||
| } | ||
| die( json_encode( [ 'error' => $e->getMessage() ] ) ); | ||
| } | ||
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Needs to be uploaded to
gatherpress.orgThere was a problem hiding this comment.
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@MervinHernandez you'll need to work with Carstin on this to get on gatherpress.org