forked from lix-project/lix-website
116 lines
2.7 KiB
JavaScript
116 lines
2.7 KiB
JavaScript
'use strict';
|
|
const {URL} = require('url');
|
|
const {Agent: HttpAgent} = require('http');
|
|
const {Agent: HttpsAgent} = require('https');
|
|
const got = require('got');
|
|
const registryUrl = require('registry-url');
|
|
const registryAuthToken = require('registry-auth-token');
|
|
const semver = require('semver');
|
|
|
|
// These agent options are chosen to match the npm client defaults and help with performance
|
|
// See: `npm config get maxsockets` and #50
|
|
const agentOptions = {
|
|
keepAlive: true,
|
|
maxSockets: 50
|
|
};
|
|
const httpAgent = new HttpAgent(agentOptions);
|
|
const httpsAgent = new HttpsAgent(agentOptions);
|
|
|
|
class PackageNotFoundError extends Error {
|
|
constructor(packageName) {
|
|
super(`Package \`${packageName}\` could not be found`);
|
|
this.name = 'PackageNotFoundError';
|
|
}
|
|
}
|
|
|
|
class VersionNotFoundError extends Error {
|
|
constructor(packageName, version) {
|
|
super(`Version \`${version}\` for package \`${packageName}\` could not be found`);
|
|
this.name = 'VersionNotFoundError';
|
|
}
|
|
}
|
|
|
|
const packageJson = async (packageName, options) => {
|
|
options = {
|
|
version: 'latest',
|
|
...options
|
|
};
|
|
|
|
const scope = packageName.split('/')[0];
|
|
const registryUrl_ = options.registryUrl || registryUrl(scope);
|
|
const packageUrl = new URL(encodeURIComponent(packageName).replace(/^%40/, '@'), registryUrl_);
|
|
const authInfo = registryAuthToken(registryUrl_.toString(), {recursive: true});
|
|
|
|
const headers = {
|
|
accept: 'application/vnd.npm.install-v1+json; q=1.0, application/json; q=0.8, */*'
|
|
};
|
|
|
|
if (options.fullMetadata) {
|
|
delete headers.accept;
|
|
}
|
|
|
|
if (authInfo) {
|
|
headers.authorization = `${authInfo.type} ${authInfo.token}`;
|
|
}
|
|
|
|
const gotOptions = {
|
|
json: true,
|
|
headers,
|
|
agent: {
|
|
http: httpAgent,
|
|
https: httpsAgent
|
|
}
|
|
};
|
|
|
|
if (options.agent) {
|
|
gotOptions.agent = options.agent;
|
|
}
|
|
|
|
let response;
|
|
try {
|
|
response = await got(packageUrl, gotOptions);
|
|
} catch (error) {
|
|
if (error.statusCode === 404) {
|
|
throw new PackageNotFoundError(packageName);
|
|
}
|
|
|
|
throw error;
|
|
}
|
|
|
|
let data = response.body;
|
|
|
|
if (options.allVersions) {
|
|
return data;
|
|
}
|
|
|
|
let {version} = options;
|
|
const versionError = new VersionNotFoundError(packageName, version);
|
|
|
|
if (data['dist-tags'][version]) {
|
|
data = data.versions[data['dist-tags'][version]];
|
|
} else if (version) {
|
|
if (!data.versions[version]) {
|
|
const versions = Object.keys(data.versions);
|
|
version = semver.maxSatisfying(versions, version);
|
|
|
|
if (!version) {
|
|
throw versionError;
|
|
}
|
|
}
|
|
|
|
data = data.versions[version];
|
|
|
|
if (!data) {
|
|
throw versionError;
|
|
}
|
|
}
|
|
|
|
return data;
|
|
};
|
|
|
|
module.exports = packageJson;
|
|
// TODO: remove this in the next major version
|
|
module.exports.default = packageJson;
|
|
module.exports.PackageNotFoundError = PackageNotFoundError;
|
|
module.exports.VersionNotFoundError = VersionNotFoundError;
|