|
| 1 | +import json |
| 2 | +import logging |
| 3 | + |
| 4 | +from flask import render_template, request, make_response, url_for |
| 5 | +from flask.helpers import send_file |
| 6 | +from tornado.util import ObjectDict |
| 7 | +from werkzeug.exceptions import NotFound |
| 8 | + |
| 9 | +from repocache.modular_view import ModularView, expose |
| 10 | +from repocache.vendor import Vendor |
| 11 | + |
| 12 | +logger = logging.getLogger(__name__) |
| 13 | + |
| 14 | + |
| 15 | +def create_upstream(name, section): |
| 16 | + '''create dict from section of ConfigParser''' |
| 17 | + tail = name[len('npm.upstream.'):] |
| 18 | + return ObjectDict(name=tail, **section) |
| 19 | + |
| 20 | + |
| 21 | +class NpmRepository(ModularView, Vendor): |
| 22 | + @expose("/") |
| 23 | + def index(self): |
| 24 | + '''TODO: list cached packages''' |
| 25 | + return self.upstreams |
| 26 | + |
| 27 | + @expose("/<string:un>/<string:name>") |
| 28 | + def package(self, un, name): |
| 29 | + '''/smallest-png''' |
| 30 | + jd = self.ensure_package(un, name) |
| 31 | + if not jd: |
| 32 | + raise NotFound |
| 33 | + |
| 34 | + return jd |
| 35 | + |
| 36 | + @expose("/<string:un>/<string:name>/-/<string:filename>") |
| 37 | + def package_file(self, un, name, filename): |
| 38 | + '''smallest-png/-/smallest-png-2.0.0-2.tgz''' |
| 39 | + ud = self.upstreams.get(un) |
| 40 | + if ud is None: |
| 41 | + raise NotFound |
| 42 | + |
| 43 | + jd = self.ensure_package(un, name) |
| 44 | + if not jd: |
| 45 | + raise NotFound |
| 46 | + |
| 47 | + for v, vd in jd.get('versions').items(): |
| 48 | + if vd.dist.tarball.endswith(filename): |
| 49 | + ud = ObjectDict(ud) |
| 50 | + del ud['url'] |
| 51 | + |
| 52 | + f = self.fetch_or_load_binary( |
| 53 | + f'npm/{un}/{name}/{filename}', |
| 54 | + fetch_handle=lambda: self.fetch(vd.dist._url, **ud), |
| 55 | + ) |
| 56 | + return send_file(f, mimetype='application/octet-stream') |
| 57 | + |
| 58 | + raise NotFound |
| 59 | + |
| 60 | + @expose("/<string:un>/-/v1/search") |
| 61 | + def search(self, un): |
| 62 | + ud = self.upstreams.get(un) |
| 63 | + if ud is None: |
| 64 | + raise NotFound |
| 65 | + |
| 66 | + resp = self.fetch(f'{ud.url}/-/v1/search', params=request.args, **ud) |
| 67 | + return resp.content |
| 68 | + |
| 69 | + # -/npm/v1/security/audits/quick |
| 70 | + @expose("/<string:un>/-/<path:left>", methods=('POST',)) |
| 71 | + def other(self, un, left): |
| 72 | + print('post:', request) |
| 73 | + return '' |
| 74 | + |
| 75 | + def __init__(self, config): |
| 76 | + ModularView.__init__( |
| 77 | + self, |
| 78 | + name='npm', |
| 79 | + url_prefix='/npm', |
| 80 | + ) |
| 81 | + |
| 82 | + self.upstreams = {} # upstream name => Dict |
| 83 | + |
| 84 | + for section_name in config: |
| 85 | + if section_name.startswith('npm.upstream.'): |
| 86 | + u = create_upstream(section_name, config[section_name]) |
| 87 | + self.upstreams[u.name] = u |
| 88 | + |
| 89 | + def _fetch(self, un, path): |
| 90 | + ud = self.upstreams.get(un) |
| 91 | + |
| 92 | + if ud is None: |
| 93 | + raise NotFound |
| 94 | + |
| 95 | + url = '{}/{}'.format( |
| 96 | + ud.url, |
| 97 | + path, |
| 98 | + ) |
| 99 | + |
| 100 | + ud = ObjectDict(ud) |
| 101 | + del ud['url'] |
| 102 | + |
| 103 | + return self.fetch(url, **ud) |
| 104 | + |
| 105 | + def ensure_package(self, un, name): |
| 106 | + # TODO: local |
| 107 | + jd = self.fetch_or_load_json( |
| 108 | + f'npm/{un}/{name}.json', |
| 109 | + fetch_handle=lambda: self._fetch(un, name), |
| 110 | + ) |
| 111 | + |
| 112 | + # replace `dist.tarball` as local url |
| 113 | + for v, vd in jd.get('versions').items(): |
| 114 | + # if un in |
| 115 | + ud = self.upstreams.get(un) |
| 116 | + prefix = f'{ud.url}/{name}/-/' |
| 117 | + pos = vd.dist.tarball.find(prefix) |
| 118 | + if pos == 0: |
| 119 | + filename = vd.dist.tarball[pos + len(prefix):] |
| 120 | + vd.dist._url = vd.dist.tarball |
| 121 | + vd.dist.tarball = url_for( |
| 122 | + 'npm.package_file', |
| 123 | + un=un, |
| 124 | + name=name, |
| 125 | + filename=filename, |
| 126 | + _external=True, |
| 127 | + ) |
| 128 | + return jd |
0 commit comments