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module.exports = regRequest
var url = require("url")
, fs = require("graceful-fs")
, rm = require("rimraf")
, asyncMap = require("slide").asyncMap
, Stream = require("stream").Stream
, request = require("request")
function regRequest (method, where, what, etag, nofollow, cb_) {
if (typeof cb_ !== "function") cb_ = nofollow, nofollow = false
if (typeof cb_ !== "function") cb_ = etag, etag = null
if (typeof cb_ !== "function") cb_ = what, what = null
// Since there are multiple places where an error could occur,
// don't let the cb be called more than once.
var errState = null
function cb (er) {
if (errState) return
if (er) errState = er
cb_.apply(null, arguments)
}
if (where.match(/^\/?favicon.ico/)) {
return cb(new Error("favicon.ico isn't a package, it's a picture."))
}
var registry = this.registry
var adduserChange = /^\/?-\/user\/org\.couchdb\.user:([^\/]+)\/-rev/
, adduserNew = /^\/?-\/user\/org\.couchdb\.user:([^\/]+)/
, authRequired = (what || this.alwaysAuth)
&& !where.match(adduserNew)
|| where.match(adduserChange)
|| method === "DELETE"
// resolve to a full url on the registry
if (!where.match(/^https?:\/\//)) {
this.log.verbose("url raw", where)
var q = where.split("?")
where = q.shift()
q = q.join("?")
if (where.charAt(0) !== "/") where = "/" + where
where = "." + where.split("/").map(function (p) {
p = p.trim()
if (p.match(/^org.couchdb.user/)) {
return p.replace(/\//g, encodeURIComponent("/"))
}
return encodeURIComponent(p)
}).join("/")
if (q) where += "?" + q
this.log.verbose("url resolving", [registry, where])
where = url.resolve(registry, where)
this.log.verbose("url resolved", where)
}
var remote = url.parse(where)
, auth = authRequired && this.auth
if (authRequired && !auth) {
return cb(new Error(
"Cannot insert data into the registry without auth"))
}
if (auth) {
remote.auth = new Buffer(auth, "base64").toString("utf8")
}
makeRequest.call(this, method, remote, where, what, etag, nofollow, cb)
}
function makeRequest (method, remote, where, what, etag, nofollow, cb) {
var opts = { url: remote
, method: method
, ca: this.ca
, strictSSL: this.strictSSL }
, headers = opts.headers = {}
if (etag) {
this.log.verbose("etag", etag)
headers[method === "GET" ? "if-none-match" : "if-match"] = etag
}
headers.accept = "application/json"
headers["user-agent"] = this.userAgent
opts.proxy = remote.protocol === "https:"
? this.httpsProxy : this.proxy
// figure out wth 'what' is
if (what) {
if (Buffer.isBuffer(what) || typeof what === "string") {
opts.body = what
headers["content-type"] = "application/json"
headers["content-length"] = Buffer.byteLength(what)
} else if (what instanceof Stream) {
headers["content-type"] = "application/octet-stream"
if (what.size) headers["content-length"] = what.size
} else {
delete what._etag
opts.json = what
}
}
if (nofollow) {
opts.followRedirect = false
}
this.log.http(method, remote.href || "/")
var done = requestDone.call(this, method, where, cb)
var req = request(opts, done)
req.on("error", cb)
if (what && (what instanceof Stream)) {
what.pipe(req)
}
}
// cb(er, parsed, raw, response)
function requestDone (method, where, cb) {
return function (er, response, data) {
if (er) return cb(er)
this.log.http(response.statusCode, url.parse(where).href)
var parsed
if (Buffer.isBuffer(data)) {
data = data.toString()
}
if (data && typeof data === "string" && response.statusCode !== 304) {
try {
parsed = JSON.parse(data)
} catch (ex) {
ex.message += "\n" + data
this.log.verbose("bad json", data)
this.log.error("registry", "error parsing json")
return cb(ex, null, data, response)
}
} else if (data) {
parsed = data
data = JSON.stringify(parsed)
}
// expect data with any error codes
if (!data && response.statusCode >= 400) {
return cb( response.statusCode + " "
+ require("http").STATUS_CODES[response.statusCode]
, null, data, response )
}
var er = null
if (parsed && response.headers.etag) {
parsed._etag = response.headers.etag
}
if (parsed && parsed.error && response.statusCode >= 400) {
var w = url.parse(where).pathname.substr(1)
if (!w.match(/^-/) && parsed.error === "not_found") {
w = w.split("/")
name = w[w.indexOf("_rewrite") + 1]
er = new Error("404 Not Found: "+name)
er.code = "E404"
er.pkgid = name
} else {
er = new Error(
parsed.error + " " + (parsed.reason || "") + ": " + w)
}
} else if (method !== "HEAD" && method !== "GET") {
// invalidate cache
// This is irrelevant for commands that do etag caching, but
// ls and view also have a timed cache, so this keeps the user
// from thinking that it didn't work when it did.
// Note that failure is an acceptable option here, since the
// only result will be a stale cache for some helper commands.
var path = require("path")
, p = url.parse(where).pathname.split("/")
, _ = "/"
, caches = p.map(function (part) {
return _ = path.join(_, part)
}).map(function (cache) {
return path.join(this.cache, cache, ".cache.json")
}, this)
// if the method is DELETE, then also remove the thing itself.
// Note that the search index is probably invalid. Whatever.
// That's what you get for deleting stuff. Don't do that.
if (method === "DELETE") {
p = p.slice(0, p.indexOf("-rev"))
caches.push(path.join(this.cache, p.join("/")))
}
asyncMap(caches, rm, function () {})
}
return cb(er, parsed, data, response)
}.bind(this)
}
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