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79 lines
2.2 KiB
79 lines
2.2 KiB
module.exports = simpleGet |
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var extend = require('xtend') |
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var http = require('http') |
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var https = require('https') |
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var once = require('once') |
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var unzipResponse = require('unzip-response') // excluded from browser build |
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var url = require('url') |
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function simpleGet (opts, cb) { |
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opts = typeof opts === 'string' ? { url: opts } : extend(opts) |
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cb = once(cb) |
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if (opts.url) parseOptsUrl(opts) |
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if (opts.headers == null) opts.headers = {} |
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if (opts.maxRedirects == null) opts.maxRedirects = 10 |
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var body = opts.body |
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opts.body = undefined |
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if (body && !opts.method) opts.method = 'POST' |
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// Request gzip/deflate |
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var customAcceptEncoding = Object.keys(opts.headers).some(function (h) { |
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return h.toLowerCase() === 'accept-encoding' |
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}) |
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if (!customAcceptEncoding) opts.headers['accept-encoding'] = 'gzip, deflate' |
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// Support http: and https: urls |
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var protocol = opts.protocol === 'https:' ? https : http |
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var req = protocol.request(opts, function (res) { |
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// Follow 3xx redirects |
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if (res.statusCode >= 300 && res.statusCode < 400 && 'location' in res.headers) { |
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opts.url = res.headers.location |
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parseOptsUrl(opts) |
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res.resume() // Discard response |
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opts.maxRedirects -= 1 |
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if (opts.maxRedirects > 0) simpleGet(opts, cb) |
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else cb(new Error('too many redirects')) |
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return |
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} |
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cb(null, typeof unzipResponse === 'function' ? unzipResponse(res) : res) |
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}) |
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req.on('error', cb) |
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req.end(body) |
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return req |
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} |
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module.exports.concat = function (opts, cb) { |
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return simpleGet(opts, function (err, res) { |
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if (err) return cb(err) |
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var chunks = [] |
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res.on('data', function (chunk) { |
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chunks.push(chunk) |
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}) |
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res.on('end', function () { |
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cb(null, Buffer.concat(chunks), res) |
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}) |
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}) |
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} |
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;['get', 'post', 'put', 'patch', 'head', 'delete'].forEach(function (method) { |
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module.exports[method] = function (opts, cb) { |
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if (typeof opts === 'string') opts = { url: opts } |
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opts.method = method.toUpperCase() |
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return simpleGet(opts, cb) |
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} |
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}) |
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function parseOptsUrl (opts) { |
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var loc = url.parse(opts.url) |
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if (loc.hostname) opts.hostname = loc.hostname |
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if (loc.port) opts.port = loc.port |
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if (loc.protocol) opts.protocol = loc.protocol |
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opts.path = loc.path |
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delete opts.url |
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}
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