mirror of
https://github.com/verdaccio/verdaccio.git
synced 2024-12-16 21:56:25 -05:00
793 lines
22 KiB
JavaScript
793 lines
22 KiB
JavaScript
'use strict';
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const assert = require('assert');
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const async = require('async');
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const Crypto = require('crypto');
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const fs = require('fs');
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const Error = require('http-errors');
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const Path = require('path');
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const Stream = require('readable-stream');
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const URL = require('url');
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const fs_storage = require('./local-fs');
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const Logger = require('./logger');
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const Search = require('./search');
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const MyStreams = require('./streams');
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const Utils = require('./utils');
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const info_file = 'package.json';
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// returns the minimal package file
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function get_boilerplate(name) {
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return {
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// standard things
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'name': name,
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'versions': {},
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'dist-tags': {},
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// our own object
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'_distfiles': {},
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'_attachments': {},
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'_uplinks': {},
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};
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}
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//
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// Implements Storage interface
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// (same for storage.js, local-storage.js, up-storage.js)
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//
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class Storage {
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constructor(config) {
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this.config = config;
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this.logger = Logger.logger.child({sub: 'fs'});
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}
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/**
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*
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* @param {*} err
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* @param {*} file
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* @param {*} message
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*/
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_internal_error(err, file, message) {
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this.logger.error( {err: err, file: file}
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, message + ' @{file}: @{!err.message}' );
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return Error[500]();
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}
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/**
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*
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* @param {*} name
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* @param {*} info
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* @param {*} callback
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*/
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add_package(name, info, callback) {
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let storage = this.storage(name);
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if (!storage) return callback( Error[404]('this package cannot be added') );
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storage.create_json(info_file, get_boilerplate(name), function(err) {
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if (err && err.code === 'EEXISTS') {
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return callback( Error[409]('this package is already present') );
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}
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let latest = info['dist-tags'].latest;
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if (latest && info.versions[latest]) {
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Search.add(info.versions[latest]);
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}
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callback();
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});
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}
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/**
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*
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* @param {*} name
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* @param {*} callback
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*/
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remove_package(name, callback) {
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this.logger.info( {name: name}
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, 'unpublishing @{name} (all)');
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let storage = this.storage(name);
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if (!storage) return callback( Error[404]('no such package available') );
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storage.read_json(info_file, (err, data) => {
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if (err) {
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if (err.code === 'ENOENT') {
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return callback( Error[404]('no such package available') );
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} else {
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return callback(err);
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}
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}
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this._normalize_package(data);
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storage.unlink(info_file, function(err) {
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if (err) return callback(err);
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let files = Object.keys(data._attachments);
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function unlinkNext(cb) {
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if (files.length === 0) return cb();
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let file = files.shift();
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storage.unlink(file, function() {
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unlinkNext(cb);
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});
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}
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unlinkNext(function() {
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// try to unlink the directory, but ignore errors because it can fail
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storage.rmdir('.', function(err) {
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callback(err);
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});
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});
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});
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});
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Search.remove(name);
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this.config.localList.remove(name);
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}
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/**
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*
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* @param {*} name
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* @param {*} callback
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*/
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_read_create_package(name, callback) {
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let storage = this.storage(name);
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if (!storage) {
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let data = get_boilerplate(name);
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this._normalize_package(data);
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return callback(null, data);
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}
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storage.read_json(info_file, (err, data) => {
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// TODO: race condition
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if (err) {
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if (err.code === 'ENOENT') {
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// if package doesn't exist, we create it here
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data = get_boilerplate(name);
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} else {
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return callback(this._internal_error(err, info_file, 'error reading'));
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}
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}
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this._normalize_package(data);
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callback(null, data);
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});
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}
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/**
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* Synchronize remote package info with the local one
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* @param {*} name
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* @param {*} newdata
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* @param {*} callback
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*/
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update_versions(name, newdata, callback) {
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this._read_create_package(name, (err, data) => {
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if (err) return callback(err);
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let change = false;
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for (let ver in newdata.versions) {
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if (data.versions[ver] == null) {
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let verdata = newdata.versions[ver];
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// we don't keep readmes for package versions,
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// only one readme per package
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delete verdata.readme;
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change = true;
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data.versions[ver] = verdata;
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if (verdata.dist && verdata.dist.tarball) {
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let filename = URL.parse(verdata.dist.tarball).pathname.replace(/^.*\//, '');
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// we do NOT overwrite any existing records
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if (data._distfiles[filename] == null) {
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let hash = data._distfiles[filename] = {
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url: verdata.dist.tarball,
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sha: verdata.dist.shasum,
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};
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// if (verdata[Symbol('_verdaccio_uplink')]) {
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if (verdata._verdaccio_uplink) {
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// if we got this information from a known registry,
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// use the same protocol for the tarball
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//
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// see https://github.com/rlidwka/sinopia/issues/166
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let tarball_url = URL.parse(hash.url);
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let uplink_url = URL.parse(this.config.uplinks[verdata._verdaccio_uplink].url);
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if (uplink_url.host === tarball_url.host) {
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tarball_url.protocol = uplink_url.protocol;
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hash.registry = verdata._verdaccio_uplink;
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hash.url = URL.format(tarball_url);
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}
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}
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}
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}
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}
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}
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for (let tag in newdata['dist-tags']) {
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if (!data['dist-tags'][tag] || data['dist-tags'][tag] !== newdata['dist-tags'][tag]) {
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change = true;
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data['dist-tags'][tag] = newdata['dist-tags'][tag];
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}
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}
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for (let up in newdata._uplinks) {
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let need_change = !Utils.is_object(data._uplinks[up])
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|| newdata._uplinks[up].etag !== data._uplinks[up].etag
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|| newdata._uplinks[up].fetched !== data._uplinks[up].fetched;
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if (need_change) {
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change = true;
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data._uplinks[up] = newdata._uplinks[up];
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}
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}
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if (newdata.readme !== data.readme) {
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data.readme = newdata.readme;
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change = true;
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}
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if (change) {
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this.logger.debug('updating package info');
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this._write_package(name, data, function(err) {
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callback(err, data);
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});
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} else {
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callback(null, data);
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}
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});
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}
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/**
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*
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* @param {*} name
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* @param {*} version
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* @param {*} metadata
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* @param {*} tag
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* @param {*} callback
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*/
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add_version(name, version, metadata, tag, callback) {
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this.update_package(name, (data, cb) => {
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// keep only one readme per package
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data.readme = metadata.readme;
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delete metadata.readme;
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if (data.versions[version] != null) {
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return cb( Error[409]('this version already present') );
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}
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// if uploaded tarball has a different shasum, it's very likely that we have some kind of error
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if (Utils.is_object(metadata.dist) && typeof(metadata.dist.tarball) === 'string') {
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let tarball = metadata.dist.tarball.replace(/.*\//, '');
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if (Utils.is_object(data._attachments[tarball])) {
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if (data._attachments[tarball].shasum != null && metadata.dist.shasum != null) {
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if (data._attachments[tarball].shasum != metadata.dist.shasum) {
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return cb( Error[400]('shasum error, '
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+ data._attachments[tarball].shasum
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+ ' != ' + metadata.dist.shasum) );
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}
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}
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data._attachments[tarball].version = version;
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}
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}
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data.versions[version] = metadata;
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Utils.tag_version(data, version, tag);
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this.config.localList.add(name);
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cb();
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}, callback);
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}
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/**
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*
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* @param {*} name
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* @param {*} tags
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* @param {*} callback
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*/
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merge_tags(name, tags, callback) {
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this.update_package(name, function updater(data, cb) {
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for (let t in tags) {
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if (tags[t] === null) {
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delete data['dist-tags'][t];
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continue;
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}
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if (data.versions[tags[t]] == null) {
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return cb( Error[404]('this version doesn\'t exist') );
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}
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Utils.tag_version(data, tags[t], t);
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}
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cb();
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}, callback);
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}
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/**
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*
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* @param {*} name
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* @param {*} tags
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* @param {*} callback
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*/
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replace_tags(name, tags, callback) {
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this.update_package(name, function updater(data, cb) {
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data['dist-tags'] = {};
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for (let t in tags) {
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if (tags[t] === null) {
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delete data['dist-tags'][t];
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continue;
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}
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if (data.versions[tags[t]] == null) {
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return cb( Error[404]('this version doesn\'t exist') );
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}
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Utils.tag_version(data, tags[t], t);
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}
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cb();
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}, callback);
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}
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/**
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* Currently supports unpublishing only
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* @param {*} name
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* @param {*} metadata
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* @param {*} revision
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* @param {*} callback
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*/
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change_package(name, metadata, revision, callback) {
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if (!Utils.is_object(metadata.versions) || !Utils.is_object(metadata['dist-tags'])) {
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return callback( Error[422]('bad data') );
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}
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this.update_package(name, (data, cb) => {
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for (let ver in data.versions) {
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if (metadata.versions[ver] == null) {
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this.logger.info( {name: name, version: ver}
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, 'unpublishing @{name}@@{version}');
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delete data.versions[ver];
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for (let file in data._attachments) {
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if (data._attachments[file].version === ver) {
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delete data._attachments[file].version;
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}
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}
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}
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}
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data['dist-tags'] = metadata['dist-tags'];
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cb();
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}, function(err) {
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if (err) return callback(err);
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callback();
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});
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}
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/**
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*
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* @param {*} name
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* @param {*} filename
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* @param {*} revision
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* @param {*} callback
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*/
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remove_tarball(name, filename, revision, callback) {
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assert(Utils.validate_name(filename));
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this.update_package(name, (data, cb) => {
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if (data._attachments[filename]) {
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delete data._attachments[filename];
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cb();
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} else {
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cb(Error[404]('no such file available'));
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}
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}, (err) => {
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if (err) {
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return callback(err);
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}
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let storage = this.storage(name);
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if (storage) {
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storage.unlink(filename, callback);
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}
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});
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}
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/**
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*
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* @param {*} name
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* @param {*} filename
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*/
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add_tarball(name, filename) {
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assert(Utils.validate_name(filename));
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let stream = MyStreams.uploadTarballStream();
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let _transform = stream._transform;
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let length = 0;
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let shasum = Crypto.createHash('sha1');
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stream.abort = stream.done = function() {};
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stream._transform = function(data) {
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shasum.update(data);
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length += data.length;
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_transform.apply(stream, arguments);
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};
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if (name === info_file || name === '__proto__') {
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process.nextTick(function() {
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stream.emit('error', Error[403]('can\'t use this filename'));
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});
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return stream;
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}
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let storage = this.storage(name);
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if (!storage) {
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process.nextTick(function() {
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stream.emit('error', Error[404]('can\'t upload this package'));
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});
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return stream;
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}
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let wstream = storage.write_stream(filename);
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wstream.on('error', (err) => {
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if (err.code === 'EEXISTS') {
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stream.emit('error', Error[409]('this tarball is already present'));
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} else if (err.code === 'ENOENT') {
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// check if package exists to throw an appropriate message
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this.get_package(name, function(_err, res) {
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if (_err) {
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stream.emit('error', _err);
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} else {
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stream.emit('error', err);
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}
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});
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} else {
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stream.emit('error', err);
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}
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});
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wstream.on('open', function() {
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// re-emitting open because it's handled in storage.js
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stream.emit('open');
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});
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wstream.on('success', () => {
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this.update_package(name, function updater(data, cb) {
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data._attachments[filename] = {
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shasum: shasum.digest('hex'),
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};
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cb();
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}, function(err) {
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if (err) {
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stream.emit('error', err);
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} else {
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stream.emit('success');
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}
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});
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});
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stream.abort = function() {
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wstream.abort();
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};
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stream.done = function() {
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if (!length) {
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stream.emit('error', Error[422]('refusing to accept zero-length file'));
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wstream.abort();
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} else {
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wstream.done();
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}
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};
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stream.pipe(wstream);
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return stream;
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}
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/**
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*
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* @param {*} name
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* @param {*} filename
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* @param {*} callback
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*/
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get_tarball(name, filename, callback) {
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assert(Utils.validate_name(filename));
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let self = this;
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let stream = MyStreams.readTarballStream();
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stream.abort = function() {
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if (rstream) rstream.abort();
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};
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let storage = self.storage(name);
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if (!storage) {
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process.nextTick(function() {
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stream.emit('error', Error[404]('no such file available'));
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});
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return stream;
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}
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var rstream = storage.read_stream(filename);
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rstream.on('error', function(err) {
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if (err && err.code === 'ENOENT') {
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stream.emit('error', Error(404, 'no such file available'));
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} else {
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stream.emit('error', err);
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}
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});
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rstream.on('content-length', function(v) {
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stream.emit('content-length', v);
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});
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rstream.on('open', function() {
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// re-emitting open because it's handled in storage.js
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stream.emit('open');
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rstream.pipe(stream);
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});
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return stream;
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}
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/**
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*
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* @param {*} name
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* @param {*} options
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* @param {*} callback
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*/
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get_package(name, options, callback) {
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if (typeof(options) === 'function') {
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callback = options, options = {};
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}
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let storage = this.storage(name);
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if (!storage) return callback( Error[404]('no such package available') );
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storage.read_json(info_file, (err, result) => {
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if (err) {
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if (err.code === 'ENOENT') {
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return callback( Error[404]('no such package available') );
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} else {
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return callback(this._internal_error(err, info_file, 'error reading'));
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}
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}
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this._normalize_package(result);
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callback(err, result);
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});
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}
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/**
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* Walks through each package and calls `on_package` on them
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* @param {*} on_package
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* @param {*} on_end
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*/
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_each_package(on_package, on_end) {
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let storages = {};
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storages[this.config.storage] = true;
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if (this.config.packages) {
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Object.keys(this.packages || {}).map( (pkg) => {
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if (this.config.packages[pkg].storage) {
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storages[this.config.packages[pkg].storage] = true;
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}
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});
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}
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const base = Path.dirname(this.config.self_path);
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async.eachSeries(Object.keys(storages), function(storage, cb) {
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fs.readdir(Path.resolve(base, storage), function(err, files) {
|
|
if (err) return cb(err);
|
|
|
|
async.eachSeries(files, function(file, cb) {
|
|
if (file.match(/^@/)) {
|
|
// scoped
|
|
fs.readdir(Path.resolve(base, storage, file), function(err, files) {
|
|
if (err) return cb(err);
|
|
|
|
async.eachSeries(files, function(file2, cb) {
|
|
if (Utils.validate_name(file2)) {
|
|
on_package({
|
|
name: `${file}/${file2}`,
|
|
path: Path.resolve(base, storage, file, file2),
|
|
}, cb);
|
|
} else {
|
|
cb();
|
|
}
|
|
}, cb);
|
|
});
|
|
} else if (Utils.validate_name(file)) {
|
|
on_package({
|
|
name: file,
|
|
path: Path.resolve(base, storage, file),
|
|
}, cb);
|
|
} else {
|
|
cb();
|
|
}
|
|
}, cb);
|
|
});
|
|
}, on_end);
|
|
}
|
|
|
|
/**
|
|
* This function allows to update the package thread-safely
|
|
Algorithm:
|
|
1. lock package.json for writing
|
|
2. read package.json
|
|
3. updateFn(pkg, cb), and wait for cb
|
|
4. write package.json.tmp
|
|
5. move package.json.tmp package.json
|
|
6. callback(err?)
|
|
* @param {*} name package name
|
|
* @param {*} updateFn function(package, cb) - update function
|
|
* @param {*} _callback callback that gets invoked after it's all updated
|
|
*/
|
|
update_package(name, updateFn, _callback) {
|
|
let self = this;
|
|
let storage = self.storage(name);
|
|
if (!storage) return _callback( Error[404]('no such package available') );
|
|
storage.lock_and_read_json(info_file, function(err, json) {
|
|
let locked = false;
|
|
|
|
// callback that cleans up lock first
|
|
function callback(err) {
|
|
let _args = arguments;
|
|
if (locked) {
|
|
storage.unlock_file(info_file, function() {
|
|
// ignore any error from the unlock
|
|
_callback.apply(err, _args);
|
|
});
|
|
} else {
|
|
_callback.apply(null, _args);
|
|
}
|
|
}
|
|
|
|
if (!err) {
|
|
locked = true;
|
|
}
|
|
|
|
if (err) {
|
|
if (err.code === 'EAGAIN') {
|
|
return callback( Error[503]('resource temporarily unavailable') );
|
|
} else if (err.code === 'ENOENT') {
|
|
return callback( Error[404]('no such package available') );
|
|
} else {
|
|
return callback(err);
|
|
}
|
|
}
|
|
|
|
self._normalize_package(json);
|
|
updateFn(json, function(err) {
|
|
if (err) return callback(err);
|
|
|
|
self._write_package(name, json, callback);
|
|
});
|
|
});
|
|
}
|
|
|
|
/**
|
|
*
|
|
* @param {*} startkey
|
|
* @param {*} options
|
|
*/
|
|
search(startkey, options) {
|
|
const stream = new Stream.PassThrough({objectMode: true});
|
|
|
|
this._each_package((item, cb) => {
|
|
fs.stat(item.path, (err, stats) => {
|
|
if (err) {
|
|
return cb(err);
|
|
}
|
|
|
|
if (stats.mtime > startkey) {
|
|
this.get_package(item.name, options, function(err, data) {
|
|
if (err) {
|
|
return cb(err);
|
|
}
|
|
|
|
let versions = Utils.semver_sort(Object.keys(data.versions));
|
|
let latest = data['dist-tags'] && data['dist-tags'].latest ? data['dist-tags'].latest : versions.pop();
|
|
|
|
if (data.versions[latest]) {
|
|
stream.push({
|
|
'name': data.versions[latest].name,
|
|
'description': data.versions[latest].description,
|
|
'dist-tags': {latest: latest},
|
|
'maintainers': data.versions[latest].maintainers ||
|
|
[data.versions[latest].author].filter(Boolean),
|
|
'author': data.versions[latest].author,
|
|
'repository': data.versions[latest].repository,
|
|
'readmeFilename': data.versions[latest].readmeFilename || '',
|
|
'homepage': data.versions[latest].homepage,
|
|
'keywords': data.versions[latest].keywords,
|
|
'bugs': data.versions[latest].bugs,
|
|
'license': data.versions[latest].license,
|
|
'time': {
|
|
modified: item.time ? new Date(item.time).toISOString() : undefined,
|
|
},
|
|
'versions': {},
|
|
});
|
|
}
|
|
|
|
cb();
|
|
});
|
|
} else {
|
|
cb();
|
|
}
|
|
});
|
|
}, function on_end(err) {
|
|
if (err) return stream.emit('error', err);
|
|
stream.end();
|
|
});
|
|
|
|
return stream;
|
|
}
|
|
|
|
/**
|
|
*
|
|
* @param {*} pkg
|
|
*/
|
|
_normalize_package(pkg) {
|
|
['versions', 'dist-tags', '_distfiles', '_attachments', '_uplinks'].forEach(function(key) {
|
|
if (!Utils.is_object(pkg[key])) pkg[key] = {};
|
|
});
|
|
if (typeof(pkg._rev) !== 'string') {
|
|
pkg._rev = '0-0000000000000000';
|
|
}
|
|
// normalize dist-tags
|
|
Utils.normalize_dist_tags(pkg);
|
|
}
|
|
|
|
/**
|
|
*
|
|
* @param {*} name
|
|
* @param {*} json
|
|
* @param {*} callback
|
|
*/
|
|
_write_package(name, json, callback) {
|
|
// calculate revision a la couchdb
|
|
if (typeof(json._rev) !== 'string') {
|
|
json._rev = '0-0000000000000000';
|
|
}
|
|
let rev = json._rev.split('-');
|
|
json._rev = ((+rev[0] || 0) + 1) + '-' + Crypto.pseudoRandomBytes(8).toString('hex');
|
|
|
|
let storage = this.storage(name);
|
|
if (!storage) return callback();
|
|
storage.write_json(info_file, json, callback);
|
|
}
|
|
|
|
/**
|
|
*
|
|
* @param {*} pkg
|
|
*/
|
|
storage(pkg) {
|
|
let path = this.config.get_package_spec(pkg).storage;
|
|
if (path == null) {
|
|
path = this.config.storage;
|
|
}
|
|
if (path == null || path === false) {
|
|
this.logger.debug( {name: pkg}
|
|
, 'this package has no storage defined: @{name}' );
|
|
return null;
|
|
}
|
|
return Path_Wrapper(
|
|
Path.join(
|
|
Path.resolve(Path.dirname(this.config.self_path || ''), path),
|
|
pkg
|
|
)
|
|
);
|
|
}
|
|
}
|
|
|
|
var Path_Wrapper = (function() {
|
|
// a wrapper adding paths to fs_storage methods
|
|
function Wrapper(path) {
|
|
let self = Object.create(Wrapper.prototype);
|
|
self.path = path;
|
|
return self;
|
|
}
|
|
|
|
for (let i in fs_storage) {
|
|
if (fs_storage.hasOwnProperty(i)) {
|
|
Wrapper.prototype[i] = wrapper(i);
|
|
}
|
|
}
|
|
|
|
function wrapper(method) {
|
|
return function(/* ...*/) {
|
|
let args = Array.prototype.slice.apply(arguments);
|
|
args[0] = Path.join(this.path, args[0] || '');
|
|
return fs_storage[method].apply(null, args);
|
|
};
|
|
}
|
|
|
|
return Wrapper;
|
|
})();
|
|
|
|
module.exports = Storage;
|