From b4e1519ab9a09d335b8b945de429065185364ad6 Mon Sep 17 00:00:00 2001 From: Tau Date: Fri, 9 Nov 2018 00:32:15 -0500 Subject: [PATCH] Add initial code drop --- .editorconfig | 6 + .gitignore | 1 + package.json | 16 +++ src/billing.js | 136 ++++++++++++++++++ src/index.js | 14 ++ src/startup.js | 88 ++++++++++++ yarn.lock | 372 +++++++++++++++++++++++++++++++++++++++++++++++++ 7 files changed, 633 insertions(+) create mode 100644 package.json create mode 100644 src/billing.js create mode 100644 src/index.js create mode 100644 src/startup.js create mode 100644 yarn.lock diff --git a/.editorconfig b/.editorconfig index 73ce228..7063dbd 100644 --- a/.editorconfig +++ b/.editorconfig @@ -8,3 +8,9 @@ indent_style = space insert_final_newline = true trim_trailing_whitespace = true max_line_length = 79 + +[*.js] +indent_size = 2 + +[*.json] +indent_size = 2 diff --git a/.gitignore b/.gitignore index 993b775..220d7c0 100644 --- a/.gitignore +++ b/.gitignore @@ -1 +1,2 @@ +node_modules/ pki/ diff --git a/package.json b/package.json new file mode 100644 index 0000000..79a1179 --- /dev/null +++ b/package.json @@ -0,0 +1,16 @@ +{ + "name": "pki", + "version": "1.0.0", + "description": "Test server", + "main": "src/index.js", + "license": "MIT", + "dependencies": { + "body-parser": "^1.18.3", + "express": "^4.16.4", + "left-pad": "^1.3.0", + "morgan": "^1.9.1" + }, + "scripts": { + "start": "node src/index.js" + } +} diff --git a/src/billing.js b/src/billing.js new file mode 100644 index 0000000..e6676e9 --- /dev/null +++ b/src/billing.js @@ -0,0 +1,136 @@ +const bodyParser = require('body-parser') +const express = require('express') +const crypto = require('crypto') +const zlib = require('zlib') +const fs = require('fs') + +const billingKeyPair = fs.readFileSync('pki/billing.key') + +const playlimit = 1024 +const nearfull = 0x00010200 + +// nearfull: high 16 bits is billing mode, low 16 bits is actual nearfull val. + +const app = express() + +function decodeRequest(buf) { + const reqBytes = zlib.inflateRawSync(buf) + const reqStr = reqBytes.toString() + + return reqStr.trim().split('\r\n').map(line => { + // Crack key-value pairs + + const params = {} + + for (const kvp of line.split('&')) { + const [ key, val ] = kvp.split('=') + params[key] = val + } + + return params + }) +} + +function encodeResponse(items) { + return items.map( + item => Object.entries( + item + ).map( ([ key, val ]) => + key + '=' + val // Keys,vals are not url escaped + ).join('&') + ).join( + '\r\n' + ) + '\r\n' +} + +app.use(bodyParser.raw()) + +app.post('/request/', function (req, resp) { + const reqItems = decodeRequest(req.body) + + console.log('\n--- Billing Request ---\n\n', reqItems) + + const first = reqItems[0] + + // Do cryptographic signatures + + const [ + playlimitsig, nearfullsig + ] = [ + playlimit, nearfull + ].map(value => { + const buf = Buffer.alloc(15) + + buf.writeInt32LE(value, 0) + buf.write(first.keychipid, 4) + + return crypto.createSign('RSA-SHA1') + .update(buf) + .sign(billingKeyPair, 'hex') + }) + + // Assemble other params + + const respItems = [] + + respItems.push({ + // 0 or 6 is success, anything else is an error + result: 0, + + // ??? + waittime: 100, + + // Some sort of bandwidth-limiting thing..? + // "line" refers to the shop's internet connection + linelimit: 1, + + // Server error message, copied to ALLNet debug log + message: '', + + // Keychip odometer limit. Game will lock out if the odometer reaches + // this value + playlimit, + + // RSA-SHA1 signature for new odometer limit. + playlimitsig, + + // idk + protocolver: '1.000', + + // A compound of two values. High 16 bits is the billing mode, low 16 bits + // is the actual "nearfull" value. Not sure exactly what nearfull is, at a + // guess it causes the client to check-in with the billing server when the + // odometer is fewer than this many ticks away from its current limit. + nearfull, + + // RSA-SHA1 signature for the 32-bit nearfull value. + nearfullsig, + + // ??? + fixlogcnt: 0, + + // ??? + fixinterval: 5, + + // Monthly play count summary, visible in operator menu. The value below + // is for a virgin machine fresh from the factory. Another example might be: + // + // 201809/123:201810/456:201811/789 + // + // which means + // + // Month 2018/09: 123 total plays + // Month 2018/10: 456 total plays + // Month 2018/11: 789 total plays + playhistory: '000000/0:000000/0:000000/0', + }) + + console.log('\n--- Billing Response ---\n\n', respItems) + + const respStr = encodeResponse(respItems) + + resp.set('content-type', 'text/plain') + resp.send(respStr) +}) + +module.exports = app diff --git a/src/index.js b/src/index.js new file mode 100644 index 0000000..7bda77b --- /dev/null +++ b/src/index.js @@ -0,0 +1,14 @@ +const https = require('https') +const http = require('http') +const fs = require('fs') + +const billing = require('./billing') +const startup = require('./startup') + +const tls = { + cert: fs.readFileSync('pki/server.pem'), + key: fs.readFileSync('pki/server.key'), +} + +http.createServer(startup).listen(80) +https.createServer(tls, billing).listen(8443) diff --git a/src/startup.js b/src/startup.js new file mode 100644 index 0000000..b65fb26 --- /dev/null +++ b/src/startup.js @@ -0,0 +1,88 @@ +const bodyParser = require('body-parser') +const leftPad = require('left-pad') // the infamous... +const express = require('express') +const zlib = require('zlib') +const os = require('os') + +function decodeRequest(req) { + const buf = Buffer.from(req, 'base64') + const bytes = zlib.unzipSync(buf) + const str = bytes.toString().trim() + + const kvps = str.split('&') + const params = {} + + kvps.forEach(kvp => { + const [ key, val ] = kvp.split('=') + + params[key] = val + }) + + return params +} + +function encodeResponse(params) { + const str = Object.entries( + params + ).map( ([ key, val ]) => + key + '=' + val + ).join('&') // Keys and values are not URL-escaped + + return str + '\r\n' +} + +const app = express() + +// Startup request is url-encoded-ish... except it's also zlibed and base64ed. +// So in the absence of any exotic Transfer-Encoding headers this Content-Type +// is incorrect and we have to override Express' built-in handling. + +app.use(bodyParser.raw({ + type: 'application/x-www-form-urlencoded', +})) + +app.post('/sys/servlet/PowerOn', function (req, resp) { + const reqParams = decodeRequest(req.body.toString()) + + console.log('\n--- Startup Request ---\n\n', reqParams) + + const now = new Date() + + // Cut milliseconds out of ISO timestamp + + const isoStrWithMs = now.toISOString() + const isoStr = isoStrWithMs.substr(0, 19) + 'Z' + + const respParams = { + stat: 1, + uri: `http://${os.hostname()}:9000/`, + host: '', + place_id: '', + name: '', + nickname: '', + region0: '', + region_name0: '', + region_name1: '', + region_name2: '', + region_name3: '', + country: '', + allnet_id: '', + + // Always UTC to simplify the segatools fake time system + // (which is used to skip the hardcoded 2AM - 7AM warn/unplayable period) + client_timezone: '+0000', + + utc_time: isoStr, + setting: '', + res_ver: '3', + token: reqParams.token, + } + + console.log('\n--- Startup Response ---\n\n', respParams) + + const respStrZ = encodeResponse(respParams) + + resp.send(respStrZ) +}) + +module.exports = app diff --git a/yarn.lock b/yarn.lock new file mode 100644 index 0000000..040e4ae --- /dev/null +++ b/yarn.lock @@ -0,0 +1,372 @@ +# THIS IS AN AUTOGENERATED FILE. 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