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68 lines
2.0 KiB
68 lines
2.0 KiB
/**
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* Fetch an HTTP url to a local file.
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**/
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var request = require("request")
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, fs = require("graceful-fs")
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, npm = require("../npm.js")
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, url = require("url")
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, log = require("npmlog")
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, path = require("path")
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, mkdir = require("mkdirp")
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, chownr = require("chownr")
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, regHost
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module.exports = fetch
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function fetch (remote, local, headers, cb) {
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if (typeof cb !== "function") cb = headers, headers = {}
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log.verbose("fetch", "to=", local)
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mkdir(path.dirname(local), function (er, made) {
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if (er) return cb(er)
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fetch_(remote, local, headers, cb)
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})
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}
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function fetch_ (remote, local, headers, cb) {
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var fstr = fs.createWriteStream(local, { mode : npm.modes.file })
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fstr.on("error", function (er) {
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fs.close(fstr.fd, function () {})
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if (fstr._ERROR) return
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cb(fstr._ERROR = er)
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})
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fstr.on("open", function () {
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makeRequest(remote, fstr, headers)
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})
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fstr.on("close", function () {
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if (fstr._ERROR) return
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cb()
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})
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}
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function makeRequest (remote, fstr, headers) {
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remote = url.parse(remote)
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log.http("GET", remote.href)
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regHost = regHost || url.parse(npm.config.get("registry")).host
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if (remote.host === regHost && npm.config.get("always-auth")) {
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remote.auth = new Buffer( npm.config.get("_auth")
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, "base64" ).toString("utf8")
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if (!remote.auth) return fstr.emit("error", new Error(
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"Auth required and none provided. Please run 'npm adduser'"))
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}
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var proxy = npm.config.get( remote.protocol === "https:"
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? "https-proxy"
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: "proxy")
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request({ url: remote
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, proxy: proxy
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, strictSSL: npm.config.get("strict-ssl")
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, ca: remote.host === regHost ? npm.config.get("ca") : undefined
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, headers: { "user-agent": npm.config.get("user-agent") }
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, onResponse: onResponse }).pipe(fstr)
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function onResponse (er, res) {
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if (er) return fstr.emit("error", er)
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log.http(res.statusCode, remote.href)
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}
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}
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