diff options
Diffstat (limited to 'deps/node/deps/npm/node_modules/request/lib/redirect.js')
-rw-r--r-- | deps/node/deps/npm/node_modules/request/lib/redirect.js | 154 |
1 files changed, 154 insertions, 0 deletions
diff --git a/deps/node/deps/npm/node_modules/request/lib/redirect.js b/deps/node/deps/npm/node_modules/request/lib/redirect.js new file mode 100644 index 00000000..b9150e77 --- /dev/null +++ b/deps/node/deps/npm/node_modules/request/lib/redirect.js @@ -0,0 +1,154 @@ +'use strict' + +var url = require('url') +var isUrl = /^https?:/ + +function Redirect (request) { + this.request = request + this.followRedirect = true + this.followRedirects = true + this.followAllRedirects = false + this.followOriginalHttpMethod = false + this.allowRedirect = function () { return true } + this.maxRedirects = 10 + this.redirects = [] + this.redirectsFollowed = 0 + this.removeRefererHeader = false +} + +Redirect.prototype.onRequest = function (options) { + var self = this + + if (options.maxRedirects !== undefined) { + self.maxRedirects = options.maxRedirects + } + if (typeof options.followRedirect === 'function') { + self.allowRedirect = options.followRedirect + } + if (options.followRedirect !== undefined) { + self.followRedirects = !!options.followRedirect + } + if (options.followAllRedirects !== undefined) { + self.followAllRedirects = options.followAllRedirects + } + if (self.followRedirects || self.followAllRedirects) { + self.redirects = self.redirects || [] + } + if (options.removeRefererHeader !== undefined) { + self.removeRefererHeader = options.removeRefererHeader + } + if (options.followOriginalHttpMethod !== undefined) { + self.followOriginalHttpMethod = options.followOriginalHttpMethod + } +} + +Redirect.prototype.redirectTo = function (response) { + var self = this + var request = self.request + + var redirectTo = null + if (response.statusCode >= 300 && response.statusCode < 400 && response.caseless.has('location')) { + var location = response.caseless.get('location') + request.debug('redirect', location) + + if (self.followAllRedirects) { + redirectTo = location + } else if (self.followRedirects) { + switch (request.method) { + case 'PATCH': + case 'PUT': + case 'POST': + case 'DELETE': + // Do not follow redirects + break + default: + redirectTo = location + break + } + } + } else if (response.statusCode === 401) { + var authHeader = request._auth.onResponse(response) + if (authHeader) { + request.setHeader('authorization', authHeader) + redirectTo = request.uri + } + } + return redirectTo +} + +Redirect.prototype.onResponse = function (response) { + var self = this + var request = self.request + + var redirectTo = self.redirectTo(response) + if (!redirectTo || !self.allowRedirect.call(request, response)) { + return false + } + + request.debug('redirect to', redirectTo) + + // ignore any potential response body. it cannot possibly be useful + // to us at this point. + // response.resume should be defined, but check anyway before calling. Workaround for browserify. + if (response.resume) { + response.resume() + } + + if (self.redirectsFollowed >= self.maxRedirects) { + request.emit('error', new Error('Exceeded maxRedirects. Probably stuck in a redirect loop ' + request.uri.href)) + return false + } + self.redirectsFollowed += 1 + + if (!isUrl.test(redirectTo)) { + redirectTo = url.resolve(request.uri.href, redirectTo) + } + + var uriPrev = request.uri + request.uri = url.parse(redirectTo) + + // handle the case where we change protocol from https to http or vice versa + if (request.uri.protocol !== uriPrev.protocol) { + delete request.agent + } + + self.redirects.push({ statusCode: response.statusCode, redirectUri: redirectTo }) + + if (self.followAllRedirects && request.method !== 'HEAD' && + response.statusCode !== 401 && response.statusCode !== 307) { + request.method = self.followOriginalHttpMethod ? request.method : 'GET' + } + // request.method = 'GET' // Force all redirects to use GET || commented out fixes #215 + delete request.src + delete request.req + delete request._started + if (response.statusCode !== 401 && response.statusCode !== 307) { + // Remove parameters from the previous response, unless this is the second request + // for a server that requires digest authentication. + delete request.body + delete request._form + if (request.headers) { + request.removeHeader('host') + request.removeHeader('content-type') + request.removeHeader('content-length') + if (request.uri.hostname !== request.originalHost.split(':')[0]) { + // Remove authorization if changing hostnames (but not if just + // changing ports or protocols). This matches the behavior of curl: + // https://github.com/bagder/curl/blob/6beb0eee/lib/http.c#L710 + request.removeHeader('authorization') + } + } + } + + if (!self.removeRefererHeader) { + request.setHeader('referer', uriPrev.href) + } + + request.emit('redirect') + + request.init() + + return true +} + +exports.Redirect = Redirect |