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ampbench_handlers.js
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ampbench_handlers.js
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// Copyright 2015-2016, Google, Inc.
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
// @ts-check
'use strict';
// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
// AMP validator wrapper library
//
const benchlib = require('./ampbench_lib.js');
const sdlib = require('./ampbench_lib_sd.js');
const linter = require('./amp-story/linter');
// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
// app version
//
const VERSION_STRING = '[AMPBENCH:V.1.0]';
function version_msg(msg) {
return VERSION_STRING + '[' + new Date().toISOString() + '] ' + msg;
}
// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
// app validation check status constants
//
/* eslint-disable no-multi-spaces */
const
CHECK_FAIL = 'FAIL',
CHECK_PASS = 'PASS',
CHECK_INFO = 'INFO',
CHECK_WARN = 'WARNING',
CHECK_NONE = 'UNKNOWN';
const // http://www.tutorialspoint.com/html/html_colors.htm
CHECK_FAIL_CSS = '<span style="color: red; ">' + CHECK_FAIL + '</span>',
CHECK_PASS_CSS = '<span style="color: #41c40f; ">' + CHECK_PASS + '</span>',
CHECK_INFO_CSS = '<span style="color: #c530ac; ">' + CHECK_INFO + '</span>',
CHECK_WARN_CSS = '<span style="color: orange; ">' + CHECK_WARN + '</span>',
CHECK_NONE_CSS = '<span style="color: orange; ">' + CHECK_NONE + '</span>';
const
get_check_status_css = (status) => {
switch (status) {
case CHECK_FAIL: return CHECK_FAIL_CSS;
case CHECK_PASS: return CHECK_PASS_CSS;
case CHECK_INFO: return CHECK_INFO_CSS;
case CHECK_WARN: return CHECK_WARN_CSS;
default: return CHECK_NONE_CSS;
}
};
/* eslint-enable no-multi-spaces */
// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
// app imports, main instance and view templates
//
const os = require('os');
const fs = require('fs');
const path = require('path');
const http = require('http');
const https = require('https');
const url = require('url');
const util = require('util');
const S = require('string');
// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
// ROUTES
//
function version(route, req, res) {
let __ret = version_msg('');
return __ret;
}
// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
function validate(route, user_agent, user_agent_name, req, res, on_validate_callback) {
benchlib.set_global_user_agent(user_agent);
benchlib.set_global_user_agent_name(user_agent_name);
let __ret = null;
let url_to_validate = req.query.url || '';
if ('' !== url_to_validate.trim()) {
const on_amp_validate = (http_response, output) => {
// console.log(`### [http_response.statusIsOK: ${http_response.statusIsOK()}]`);
let parse_amplinks = benchlib.parse_page_content(http_response);
// response body sniffer
let sniffer = parse_amplinks.http_body_sniffer;
// - - - - - - - - - - - - - - - - - - - -
let amp_hdr_status = CHECK_NONE,
amp_val_status = CHECK_NONE;
if (output) { // verify the output payload and get the result
if (Array.isArray(output)) {
amp_hdr_status = output.shift();
} else if ('string' === typeof output) {
amp_hdr_status = output.substring(0, 4);
}
amp_val_status = amp_hdr_status;
}
const amp_val_warnings =
benchlib.build_warning_lines_from_validation_output(url_to_validate, output, '');
let check_amp_links_canonical_status = '',
check_amp_links_canonical_results = '',
check_amp_links_amphtml_status = '',
check_amp_links_amphtml_results = '';
const on_canonical_parsed = (http_response_canonical, canonical_parsed_return) => {
canonical_parsed_return.result = ''; // make a result field
let canonical_url_found = canonical_parsed_return.canonical_url,
amphtml_url_found = canonical_parsed_return.amphtml_urls, // could be multiples
fetch_duration_amp = http_response.duration_in_milliseconds,
fetch_duration_canonical = http_response_canonical.duration_in_milliseconds,
fetch_duration_amp_cache = 0, fetch_status_amp_cache = '';
if (http_response_canonical.urlIsOK()) {
if (http_response_canonical.statusIsOK()) {
canonical_parsed_return.result += '[Canonical URL is reachable]';
if ('' !== canonical_url_found) {
canonical_parsed_return.canonical_url = benchlib.make_url_href(
canonical_url_found, canonical_url_found);
}
if (0 < amphtml_url_found.length) {
canonical_parsed_return.result += '[AMP link found in Canonical page]';
if (!amphtml_url_found.includes(url_to_validate)) { // amp link not pointing back!!!
// if (!amphtml_url_found.includes(url_to_validate) &&
// !amphtml_url_found.includes(url_to_validate.slice(0,-1)) &&
// !amphtml_url_found.includes(url_to_validate.trim()) &&
// !amphtml_url_found.includes(url_to_validate.trimEnd())) { // amp link not pointing back!!!
canonical_parsed_return.status = CHECK_FAIL;
canonical_parsed_return.result += '[FAIL: AMP link in Canonical page does not refer to the current AMP page]';
} else if (amphtml_url_found.length > 1) {
canonical_parsed_return.status = CHECK_WARN;
canonical_parsed_return.result += '[WARNING: Multiple AMP links found in Canonical page]';
} else {
canonical_parsed_return.status = CHECK_PASS;
canonical_parsed_return.result += '[AMP link in Canonical page refers to the current AMP page]';
}
canonical_parsed_return.amphtml_url = benchlib.make_url_href(
amphtml_url_found[0], amphtml_url_found[0]); // could be multiples, if so take the 1st one
canonical_parsed_return.amphtml_urls = benchlib.make_url_href_list(canonical_parsed_return.amphtml_urls);
} else {
canonical_parsed_return.status = CHECK_WARN;
let _can_result =
'[WARNING: AMP link not found in the Canonical page]';
if (url_to_validate === canonical_url_found) { // standalone AMP? canonical_link <=> amphtml_link
canonical_parsed_return.status = CHECK_INFO;
_can_result =
'[AMP page Canonical link points to the AMP page itself: is this a standalone AMP?]';
}
canonical_parsed_return.result += _can_result;
}
} else {
canonical_parsed_return.status = CHECK_FAIL;
canonical_parsed_return.result += '[FAIL: Canonical URL is unreachable]';
if ('' !== http_response_canonical.http_response_text) {
canonical_parsed_return.result += '[' + http_response_canonical.http_response_text + ']';
}
}
} else {
canonical_parsed_return.status = CHECK_FAIL;
canonical_parsed_return.result +=
'[FAIL: Canonical URL is invalid][' + http_response_canonical.url_error + ']';
}
canonical_parsed_return.status = get_check_status_css(canonical_parsed_return.status);
canonical_parsed_return.url = benchlib.make_url_href(
canonical_parsed_return.url, canonical_parsed_return.url);
const on_check_robots_txt = (check_robots_txt_return) => {
const on_check_google_amp_cache = (check_google_amp_cache_return) => {
fetch_duration_amp_cache = check_google_amp_cache_return.duration_in_milliseconds;
fetch_status_amp_cache = 0 < fetch_duration_amp_cache ? '' :
'[' + check_google_amp_cache_return.check_google_amp_cache_results + ']';
const on_check_url_metadata = (metadata_return) => {
// cache the news article image urls
let publisher_logo_url = metadata_return.image.url,
article_image_url = metadata_return.article_image.url;
const on_check_image_urls_are_reachable = (publisher_logo_url_reachable_ret,
article_image_url_reachable_ret) => {
let amp_url_href = benchlib.make_url_href(url_to_validate, url_to_validate),
amphtml_url_href = '',
// amphtml_url_href = benchlib.make_url_href(amphtml_url, amphtml_url),
canonical_url_href = benchlib.make_url_href(
parse_amplinks.canonical_url,
parse_amplinks.canonical_url);
let url_to_validate_enc = encodeURIComponent(url_to_validate),
redirect_url = '';
// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
// REDIRECT decisions - follows the approach of sifting out cases + use of redirects.
// - - - -
if (( // a Canonical?
url_to_validate === parse_amplinks.canonical_url &&
'' !== parse_amplinks.amphtml_url &&
parse_amplinks.amphtml_url !== url_to_validate
) || (
'' === parse_amplinks.canonical_url &&
'' !== parse_amplinks.amphtml_url &&
parse_amplinks.amphtml_url !== url_to_validate
)) {
// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
// CASE 1:
// - - - -
url_to_validate_enc = encodeURIComponent(benchlib.str_encode_hard_amp(parse_amplinks.amphtml_url));
redirect_url = '..' + route + '?url=' + url_to_validate_enc;
res.redirect(redirect_url);
} else if ( // from a non-Canonical, non-AMP to a redirect which will trigger CASE 1 on seperate request.
url_to_validate !== parse_amplinks.canonical_url &&
'' !== parse_amplinks.canonical_url &&
'' !== parse_amplinks.amphtml_url && !sniffer.containsAmpHtmlLink
) {
// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
// CASE 2:
// - - - -
url_to_validate_enc = encodeURIComponent(benchlib.str_encode_hard_amp(parse_amplinks.amphtml_url));
redirect_url = '..' + route + '?url=' + url_to_validate_enc;
res.redirect(redirect_url);
} else if ( // from a non-Canonical, non-AMP, and so on ...
url_to_validate !== parse_amplinks.canonical_url &&
'' !== parse_amplinks.canonical_url &&
url_to_validate !== parse_amplinks.amphtml_url &&
'' !== parse_amplinks.amphtml_url
) {
// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
// CASE 3:
// - - - -
url_to_validate_enc = encodeURIComponent(benchlib.str_encode_hard_amp(parse_amplinks.amphtml_url));
redirect_url = '..' + route + '?url=' + url_to_validate_enc;
res.redirect(redirect_url);
} else {
// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
// CASE Z: NO REDIRECT - FINAL HANDLER
// - - - -
if ('' !== parse_amplinks.amphtml_url) {
// there should be no AMPHTML relation link on an AMP page!
// https://www.ampproject.org/docs/guides/discovery.html
amp_hdr_status = CHECK_FAIL;
check_amp_links_amphtml_status = CHECK_FAIL;
check_amp_links_amphtml_results += '[This page has an AMPHTML relation link but appears to be an AMP page]';
check_amp_links_amphtml_results += '[AMP pages should not have AMPHTML relation links]';
amphtml_url_href = '<br>' + benchlib.make_url_href(
parse_amplinks.amphtml_url,
parse_amplinks.amphtml_url);
if (parse_amplinks.amphtml_url !== url_to_validate) { // *and* the amphtml_link rel link is not the validated URL
check_amp_links_amphtml_results += '[the AMPHTML link also does not point at the current page]';
}
if (parse_amplinks.canonical_url === url_to_validate) { // these should *not* be identical here except for standalone!
check_amp_links_canonical_results += '[Canonical equal to AMP: standalone AMP page?]';
}
}
if ('' !== parse_amplinks.canonical_url) {
if (benchlib.check_url_is_valid(parse_amplinks.canonical_url)) {
check_amp_links_canonical_status = CHECK_PASS;
} else {
amp_hdr_status = CHECK_FAIL;
check_amp_links_canonical_status = CHECK_FAIL;
check_amp_links_canonical_results += '[Canonical URL is invalid]';
}
} else {
// we should always have a Canonical relationship link on all AMP pages
// https://www.ampproject.org/docs/guides/discovery.html
amp_hdr_status = CHECK_FAIL;
check_amp_links_canonical_status = CHECK_FAIL;
canonical_url_href =
'[Canonical relation link was not found: is the requested URL for a valid AMP page?]';
check_amp_links_canonical_results +=
'[All AMP pages need a Canonical relation link, even if pointing to itself (standalone AMP)]';
}
let http_response_result = parse_amplinks.amp_uses_feed
? '[ DEPRECATED!: Uses the Google AMP Feed Conversion Service - this is due for imminent Shutdown! ]' : '';
http_response_result += !http_response.statusIsOK()
? ' [URL is unreachable] [' + http_response.http_response_text + ']'
: '';
let http_redirect_route = benchlib.build_http_redirect_warning_lines(http_response),
http_redirect_status = benchlib.get_http_redirect_status(http_response);
amp_val_warnings.amp_val_warning_status =
get_check_status_css(amp_val_warnings.amp_val_warning_status);
metadata_return.status =
get_check_status_css(metadata_return.status);
// publisher logo
metadata_return.image.url =
benchlib.make_url_href(metadata_return.image.url, metadata_return.image.url);
metadata_return.image.status =
get_check_status_css(metadata_return.image.status);
// article image
metadata_return.article_image.url =
benchlib.make_url_href(metadata_return.article_image.url, metadata_return.article_image.url);
metadata_return.article_image.status =
get_check_status_css(metadata_return.article_image.status);
// article guidelines
metadata_return.article.status =
get_check_status_css(metadata_return.article.status);
metadata_return.json_error =
'' !== metadata_return.json_error.trim()
? `[${metadata_return.json_error}]`
: metadata_return.json_error.trim();
let check_google_amp_cache_status_css =
get_check_status_css(check_google_amp_cache_return.check_google_amp_cache_status);
if (CHECK_PASS !== check_google_amp_cache_return.check_google_amp_cache_status ||
CHECK_PASS !== check_google_amp_cache_return.check_google_amp_viewer_status) {
check_google_amp_cache_status_css = get_check_status_css(CHECK_WARN);
}
if (CHECK_FAIL === check_google_amp_cache_return.check_google_amp_cache_status) {
check_google_amp_cache_status_css = get_check_status_css(CHECK_FAIL);
}
check_robots_txt_return.check_robots_txt_status =
get_check_status_css(check_robots_txt_return.check_robots_txt_status);
parse_amplinks.check_robots_meta_status =
get_check_status_css(parse_amplinks.check_robots_meta_status);
parse_amplinks.check_x_robots_tag_header_status =
get_check_status_css(parse_amplinks.check_x_robots_tag_header_status);
// response times
let fetch_compare_canonical_amp = (0 < fetch_duration_canonical && 0 < fetch_duration_amp)
? Math.round((fetch_duration_canonical / fetch_duration_amp) * 100) / 100
: 0;
let fetch_compare_canonical_amp_cache = (0 < fetch_duration_canonical && 0 < fetch_duration_amp_cache)
? Math.round((fetch_duration_canonical / fetch_duration_amp_cache) * 100) / 100
: 0;
let response_times_status_css = CHECK_INFO_CSS,
response_times_status_amp = '',
response_times_status_amp_cache = '';
if (fetch_duration_amp > fetch_duration_canonical) {
response_times_status_css = CHECK_INFO_CSS;
response_times_status_amp = '[' + CHECK_INFO + ': AMP page fetch is slower than Canonical page]';
}
if (fetch_duration_amp_cache > fetch_duration_canonical) {
response_times_status_css = CHECK_INFO_CSS;
response_times_status_amp_cache = '[' + CHECK_INFO + ': AMP Cache page fetch is slower than Canonical page]';
}
// response body sniffer reporting
let sniffer_raw_status_css = sniffer.containsAmpHtmlLink // AMP should not contain an AMP rel link
? CHECK_FAIL_CSS : CHECK_PASS_CSS,
sniffer_raw_result = !sniffer.containsAmpHtmlSignature
? CHECK_FAIL + ': AMP page should contain a top-level "<html ⚡>" or "<html amp>" tag'
: 'AMP page appears to contain a top-level "<html ⚡>" or "<html amp>" tag',
sniffer_raw_result_amphtml = sniffer.containsAmpHtmlLink
? '[' + CHECK_FAIL + ': AMP page should not contain a AMP-HTML rel link]'
: 'AMP page appears free of AMP-HTML rel link(s)',
sniffer_raw_result_canonical = !sniffer.containsCanonicalLink
? CHECK_FAIL + ': AMP page should contain a Canonical rel link'
: 'AMP page appears to contain a Canonical rel link',
sniffer_sd_status_css = '' === sniffer.ampStructuredDataTypesFound
? CHECK_FAIL_CSS : CHECK_INFO_CSS,
sniffer_sd_result = sniffer.containsMixedStructuredDataMarkup.status
? CHECK_WARN + ': ' + sniffer.containsMixedStructuredDataMarkup.result
: CHECK_INFO + ': ' + sniffer.containsMixedStructuredDataMarkup.result,
sniffer_sd_types_result = '' !== sniffer.ampStructuredDataTypesFound
? sniffer.ampStructuredDataTypesFound
: CHECK_FAIL +
': No Structured Data markup for AMP supported types was found' +
': see the "SDTT Structured Data Testing Tool Results" section for AMP agnostic SD validation',
sniffer_sd_carousel_status_css = '' === sniffer.ampCarouselStructuredDataTypesFound
? CHECK_FAIL_CSS : CHECK_INFO_CSS,
sniffer_sd_carousel_result = sniffer.containsIncompleteAmpCarouselStructuredData.status
? CHECK_WARN + ': ' + sniffer.containsIncompleteAmpCarouselStructuredData.result
: CHECK_INFO + ': ' + sniffer.containsIncompleteAmpCarouselStructuredData.result;
sniffer_raw_status_css = !sniffer.containsAmpHtmlSignature
? CHECK_FAIL_CSS : sniffer_raw_status_css;
const sniffer_contains_byte_order_mark = sniffer.containsByteOrderMark
? `[${CHECK_WARN}] Byte Order Marks were detected on the page - ideally AMP pages should not contain any BOMs`
: `[${CHECK_PASS}] AMP page does not appear to contain any Byte Order Marks (BOMs)`;
const sniffer_contains_byte_order_mark_css = sniffer.containsByteOrderMark
? CHECK_WARN_CSS : CHECK_PASS_CSS;
const testContext = {
headers: {
'user-agent': user_agent
},
url: url_to_validate,
$: http_response.$
};
const testAmpStory = linter.testAmpStory(testContext);
const testThumbnails = linter.testThumbnails(testContext);
__ret = {
user_agent: benchlib.get_global_user_agent(),
user_agent_name: benchlib.get_global_user_agent_name(),
// https://developer.mozilla.org/en/docs/Web/JavaScript/Reference/Global_Objects/Date/toISOString
response_timestamp: new Date().toISOString(), // The timezone is always zero UTC offset, as per suffix "Z"
http_response: http_response,
http_response_code: http_response.http_response_code,
http_response_statusIsOK: http_response.statusIsOK(),
http_response_result: http_response_result,
parse_amplinks: parse_amplinks,
check_ims_or_etag_header_status_css:
get_check_status_css(parse_amplinks.check_ims_or_etag_header.check_ims_or_etag_header_status),
canonical_parsed_return: canonical_parsed_return,
response_times: {
status: response_times_status_css,
response_times_status_amp: response_times_status_amp,
response_times_status_amp_cache: response_times_status_amp_cache,
fetch_duration_canonical,
fetch_duration_amp,
fetch_duration_amp_cache,
fetch_status_amp_cache,
fetch_compare_canonical_amp,
fetch_compare_canonical_amp_cache
},
amp_hdr_status: get_check_status_css(amp_hdr_status),
amp_val_status: get_check_status_css(amp_val_status),
amp_val_warnings: amp_val_warnings,
amp_url: url_to_validate,
amp_url_enc: url_to_validate_enc,
amp_url_href: amp_url_href,
amphtml_url: parse_amplinks.amphtml_url,
amphtml_url_href: amphtml_url_href,
canonical_url: parse_amplinks.canonical_url,
canonical_url_href: canonical_url_href,
check_amp_links_canonical_status: get_check_status_css(check_amp_links_canonical_status),
check_amp_links_canonical_results: check_amp_links_canonical_results.trim(),
check_amp_links_amphtml_status: get_check_status_css(check_amp_links_amphtml_status),
check_amp_links_amphtml_results: check_amp_links_amphtml_results,
// conditional metadata view drivers - - - - - - - - - - - - -
sniffer: sniffer,
sniffer_raw_status_css: sniffer_raw_status_css,
sniffer_raw_result: sniffer_raw_result,
sniffer_raw_result_amphtml: sniffer_raw_result_amphtml,
sniffer_raw_result_canonical: sniffer_raw_result_canonical,
sniffer_sd_status_css: sniffer_sd_status_css,
sniffer_sd_result: sniffer_sd_result,
sniffer_sd_types_result: sniffer_sd_types_result,
sniffer_sd_carousel_status_css: sniffer_sd_carousel_status_css,
sd_ampCarouselStructuredDataTypesFound: '' !== sniffer.ampCarouselStructuredDataTypesFound
? sniffer.ampCarouselStructuredDataTypesFound
: CHECK_FAIL + ': No Structured Data markup for AMP Top Stories Carousel supported types was found',
sd_containsIncompleteAmpCarouselStructuredData_result: sniffer_sd_carousel_result,
sniffer_contains_byte_order_mark: sniffer_contains_byte_order_mark,
sniffer_contains_byte_order_mark_css: sniffer_contains_byte_order_mark_css,
// - - -
metadata_is_news: metadata_return.schemaIsArticle() ||
sniffer.containsAmpNewsCarouselStructuredDataTypeMain ||
sniffer.containsAmpNewsCarouselStructuredDataTypeSupport,
metadata_return: metadata_return,
publisher_logo_url_reachable_return: publisher_logo_url_reachable_ret,
article_image_url_reachable_return: article_image_url_reachable_ret,
// - - -
check_robots_txt_return: check_robots_txt_return,
check_google_amp_cache_status_css: check_google_amp_cache_status_css,
check_google_amp_cache_return: check_google_amp_cache_return,
variant_is_amp_story: testAmpStory.then((res) => res.status !== 'FAIL'),
amp_story_thumbnails: testThumbnails,
amp_story_thumbnails_status: testThumbnails.then((res) => get_check_status_css(res.status)),
// check_redirects_return: check_redirects_return,
http_redirect_status: get_check_status_css(http_redirect_status),
http_redirect_route: http_redirect_route,
url: url_to_validate, /* REQUIRED for SDTT request! */
// amp_results: output
amp_results: amp_val_warnings.amp_val_results_short
};
// The values of __ret can be promises. Use Promise.all() to resolve these in parallel.
const keys = Object.keys(__ret);
const kvPromises = keys.map((k) => Promise.resolve(__ret[k]).then((v) => [k, v]));
Promise.all(kvPromises)
.then((kvs) => (kvs.reduce((a, kv) => {
a[kv[0]] = kv[1];
return a;
}, {})))
.then((ret) => on_validate_callback(ret));
}
// console.log(`### [DANGLING!][http_response.statusIsOK: ${http_response.statusIsOK()}]`);
};
sdlib.check_image_urls_are_reachable(publisher_logo_url, article_image_url, on_check_image_urls_are_reachable);
};
on_check_url_metadata(sdlib.check_body_metadata(http_response.http_response_body)); // body already fetched
};
benchlib.check_google_amp_cache(url_to_validate, on_check_google_amp_cache);
};
benchlib.check_robots_txt(url_to_validate, on_check_robots_txt);
};
benchlib.fetch_and_parse_url_for_amplinks(parse_amplinks.canonical_url, on_canonical_parsed);
};
benchlib.api_validate_url(url_to_validate, on_amp_validate, 0);
}
}
// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
// local utils
//
function print_dashes(dash_count) { // needs: const S = require('string');
console.log(S(('- ').repeat(dash_count)).s );
}
// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
// module exports
//
exports.version = version;
exports.validate = validate;
// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -