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author | LinuxWizard42 <computerwizard@linuxmail.org> | 2022-10-12 22:54:37 +0300 |
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committer | LinuxWizard42 <computerwizard@linuxmail.org> | 2022-10-12 22:54:37 +0300 |
commit | 703e03aba33f234712206769f57717ba7d92d23d (patch) | |
tree | 0041f04ccb75bd5379c764e9fe42249fffe75fc3 /node_modules/request/lib/tunnel.js | |
parent | ab6e257e6e9d9a483d7e86f220d8b209a2cd7753 (diff) | |
download | FlashRunner-703e03aba33f234712206769f57717ba7d92d23d.tar.gz FlashRunner-703e03aba33f234712206769f57717ba7d92d23d.tar.zst |
Added export_allowed file to make repository visible in cgit
Diffstat (limited to 'node_modules/request/lib/tunnel.js')
-rw-r--r-- | node_modules/request/lib/tunnel.js | 175 |
1 files changed, 175 insertions, 0 deletions
diff --git a/node_modules/request/lib/tunnel.js b/node_modules/request/lib/tunnel.js new file mode 100644 index 0000000..4479003 --- /dev/null +++ b/node_modules/request/lib/tunnel.js @@ -0,0 +1,175 @@ +'use strict' + +var url = require('url') +var tunnel = require('tunnel-agent') + +var defaultProxyHeaderWhiteList = [ + 'accept', + 'accept-charset', + 'accept-encoding', + 'accept-language', + 'accept-ranges', + 'cache-control', + 'content-encoding', + 'content-language', + 'content-location', + 'content-md5', + 'content-range', + 'content-type', + 'connection', + 'date', + 'expect', + 'max-forwards', + 'pragma', + 'referer', + 'te', + 'user-agent', + 'via' +] + +var defaultProxyHeaderExclusiveList = [ + 'proxy-authorization' +] + +function constructProxyHost (uriObject) { + var port = uriObject.port + var protocol = uriObject.protocol + var proxyHost = uriObject.hostname + ':' + + if (port) { + proxyHost += port + } else if (protocol === 'https:') { + proxyHost += '443' + } else { + proxyHost += '80' + } + + return proxyHost +} + +function constructProxyHeaderWhiteList (headers, proxyHeaderWhiteList) { + var whiteList = proxyHeaderWhiteList + .reduce(function (set, header) { + set[header.toLowerCase()] = true + return set + }, {}) + + return Object.keys(headers) + .filter(function (header) { + return whiteList[header.toLowerCase()] + }) + .reduce(function (set, header) { + set[header] = headers[header] + return set + }, {}) +} + +function constructTunnelOptions (request, proxyHeaders) { + var proxy = request.proxy + + var tunnelOptions = { + proxy: { + host: proxy.hostname, + port: +proxy.port, + proxyAuth: proxy.auth, + headers: proxyHeaders + }, + headers: request.headers, + ca: request.ca, + cert: request.cert, + key: request.key, + passphrase: request.passphrase, + pfx: request.pfx, + ciphers: request.ciphers, + rejectUnauthorized: request.rejectUnauthorized, + secureOptions: request.secureOptions, + secureProtocol: request.secureProtocol + } + + return tunnelOptions +} + +function constructTunnelFnName (uri, proxy) { + var uriProtocol = (uri.protocol === 'https:' ? 'https' : 'http') + var proxyProtocol = (proxy.protocol === 'https:' ? 'Https' : 'Http') + return [uriProtocol, proxyProtocol].join('Over') +} + +function getTunnelFn (request) { + var uri = request.uri + var proxy = request.proxy + var tunnelFnName = constructTunnelFnName(uri, proxy) + return tunnel[tunnelFnName] +} + +function Tunnel (request) { + this.request = request + this.proxyHeaderWhiteList = defaultProxyHeaderWhiteList + this.proxyHeaderExclusiveList = [] + if (typeof request.tunnel !== 'undefined') { + this.tunnelOverride = request.tunnel + } +} + +Tunnel.prototype.isEnabled = function () { + var self = this + var request = self.request + // Tunnel HTTPS by default. Allow the user to override this setting. + + // If self.tunnelOverride is set (the user specified a value), use it. + if (typeof self.tunnelOverride !== 'undefined') { + return self.tunnelOverride + } + + // If the destination is HTTPS, tunnel. + if (request.uri.protocol === 'https:') { + return true + } + + // Otherwise, do not use tunnel. + return false +} + +Tunnel.prototype.setup = function (options) { + var self = this + var request = self.request + + options = options || {} + + if (typeof request.proxy === 'string') { + request.proxy = url.parse(request.proxy) + } + + if (!request.proxy || !request.tunnel) { + return false + } + + // Setup Proxy Header Exclusive List and White List + if (options.proxyHeaderWhiteList) { + self.proxyHeaderWhiteList = options.proxyHeaderWhiteList + } + if (options.proxyHeaderExclusiveList) { + self.proxyHeaderExclusiveList = options.proxyHeaderExclusiveList + } + + var proxyHeaderExclusiveList = self.proxyHeaderExclusiveList.concat(defaultProxyHeaderExclusiveList) + var proxyHeaderWhiteList = self.proxyHeaderWhiteList.concat(proxyHeaderExclusiveList) + + // Setup Proxy Headers and Proxy Headers Host + // Only send the Proxy White Listed Header names + var proxyHeaders = constructProxyHeaderWhiteList(request.headers, proxyHeaderWhiteList) + proxyHeaders.host = constructProxyHost(request.uri) + + proxyHeaderExclusiveList.forEach(request.removeHeader, request) + + // Set Agent from Tunnel Data + var tunnelFn = getTunnelFn(request) + var tunnelOptions = constructTunnelOptions(request, proxyHeaders) + request.agent = tunnelFn(tunnelOptions) + + return true +} + +Tunnel.defaultProxyHeaderWhiteList = defaultProxyHeaderWhiteList +Tunnel.defaultProxyHeaderExclusiveList = defaultProxyHeaderExclusiveList +exports.Tunnel = Tunnel |