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| 1 | +const net = require('net') |
| 2 | +const buffers = require('../../test-buffers') |
| 3 | +const helper = require('../test-helper') |
| 4 | +const assert = require('assert') |
| 5 | +const cli = require('../../cli') |
| 6 | + |
| 7 | +const suite = new helper.Suite() |
| 8 | + |
| 9 | +const options = { |
| 10 | + host: 'localhost', |
| 11 | + port: Math.floor(Math.random() * 2000) + 2000, |
| 12 | + connectionTimeoutMillis: 2000, |
| 13 | + user: 'not', |
| 14 | + database: 'existing', |
| 15 | +} |
| 16 | + |
| 17 | +const startMockServer = (port, badBuffer, callback) => { |
| 18 | + const sockets = new Set() |
| 19 | + |
| 20 | + const server = net.createServer((socket) => { |
| 21 | + sockets.add(socket) |
| 22 | + socket.once('end', () => sockets.delete(socket)) |
| 23 | + |
| 24 | + socket.on('data', (data) => { |
| 25 | + // deny request for SSL |
| 26 | + if (data.length === 8) { |
| 27 | + socket.write(Buffer.from('N', 'utf8')) |
| 28 | + return |
| 29 | + // consider all authentication requests as good |
| 30 | + } |
| 31 | + // the initial message coming in has a 0 message type for authentication negotiation |
| 32 | + if (!data[0]) { |
| 33 | + socket.write(buffers.authenticationOk()) |
| 34 | + // send ReadyForQuery `timeout` ms after authentication |
| 35 | + socket.write(buffers.readyForQuery()) |
| 36 | + return |
| 37 | + // respond with our canned response |
| 38 | + } |
| 39 | + const code = data.toString('utf8', 0, 1) |
| 40 | + switch (code) { |
| 41 | + // parse |
| 42 | + case 'P': |
| 43 | + socket.write(buffers.parseComplete()) |
| 44 | + socket.write(buffers.bindComplete()) |
| 45 | + socket.write(buffers.rowDescription()) |
| 46 | + socket.write(buffers.dataRow()) |
| 47 | + socket.write(buffers.commandComplete('FOO BAR')) |
| 48 | + socket.write(buffers.readyForQuery()) |
| 49 | + // this message is invalid, but sometimes sent out of order when using proxies or pg-bouncer |
| 50 | + setImmediate(() => { |
| 51 | + socket.write(badBuffer) |
| 52 | + }) |
| 53 | + break |
| 54 | + case 'Q': |
| 55 | + socket.write(buffers.rowDescription()) |
| 56 | + socket.write(buffers.dataRow()) |
| 57 | + socket.write(buffers.commandComplete('FOO BAR')) |
| 58 | + socket.write(buffers.readyForQuery()) |
| 59 | + // this message is invalid, but sometimes sent out of order when using proxies or pg-bouncer |
| 60 | + setImmediate(() => { |
| 61 | + socket.write(badBuffer) |
| 62 | + }) |
| 63 | + default: |
| 64 | + // console.log('got code', code) |
| 65 | + } |
| 66 | + }) |
| 67 | + }) |
| 68 | + |
| 69 | + const closeServer = () => { |
| 70 | + for (const socket of sockets) { |
| 71 | + socket.destroy() |
| 72 | + } |
| 73 | + return new Promise((resolve) => { |
| 74 | + server.close(resolve) |
| 75 | + }) |
| 76 | + } |
| 77 | + |
| 78 | + server.listen(port, options.host, () => callback(closeServer)) |
| 79 | +} |
| 80 | + |
| 81 | +const delay = (ms) => |
| 82 | + new Promise((resolve) => { |
| 83 | + setTimeout(resolve, ms) |
| 84 | + }) |
| 85 | + |
| 86 | +const testErrorBuffer = (bufferName, errorBuffer) => { |
| 87 | + suite.testAsync(`Out of order ${bufferName} on simple query is catchable`, async () => { |
| 88 | + const closeServer = await new Promise((resolve, reject) => { |
| 89 | + return startMockServer(options.port, errorBuffer, (closeServer) => resolve(closeServer)) |
| 90 | + }) |
| 91 | + const client = new helper.Client(options) |
| 92 | + await client.connect() |
| 93 | + |
| 94 | + let errorHit = false |
| 95 | + client.on('error', () => { |
| 96 | + errorHit = true |
| 97 | + }) |
| 98 | + |
| 99 | + await client.query('SELECT NOW()') |
| 100 | + await delay(50) |
| 101 | + |
| 102 | + // the native client only emits a notice message and keeps on its merry way |
| 103 | + if (!cli.native) { |
| 104 | + assert(errorHit) |
| 105 | + // further queries on the client should fail since its in an invalid state |
| 106 | + await assert.rejects(() => client.query('SELECTR NOW()'), 'Further queries on the client should reject') |
| 107 | + } |
| 108 | + |
| 109 | + await closeServer() |
| 110 | + }) |
| 111 | + |
| 112 | + suite.testAsync(`Out of order ${bufferName} on extended query is catchable`, async () => { |
| 113 | + const closeServer = await new Promise((resolve, reject) => { |
| 114 | + return startMockServer(options.port, errorBuffer, (closeServer) => resolve(closeServer)) |
| 115 | + }) |
| 116 | + const client = new helper.Client(options) |
| 117 | + await client.connect() |
| 118 | + |
| 119 | + let errorHit = false |
| 120 | + client.on('error', () => { |
| 121 | + errorHit = true |
| 122 | + }) |
| 123 | + |
| 124 | + await client.query('SELECT $1', ['foo']) |
| 125 | + await delay(40) |
| 126 | + |
| 127 | + // the native client only emits a notice message and keeps on its merry way |
| 128 | + if (!cli.native) { |
| 129 | + assert(errorHit) |
| 130 | + // further queries on the client should fail since its in an invalid state |
| 131 | + await assert.rejects(() => client.query('SELECTR NOW()'), 'Further queries on the client should reject') |
| 132 | + } |
| 133 | + |
| 134 | + await client.end() |
| 135 | + |
| 136 | + await closeServer() |
| 137 | + }) |
| 138 | + |
| 139 | + suite.testAsync(`Out of order ${bufferName} on pool is catchable`, async () => { |
| 140 | + const closeServer = await new Promise((resolve, reject) => { |
| 141 | + return startMockServer(options.port, errorBuffer, (closeServer) => resolve(closeServer)) |
| 142 | + }) |
| 143 | + const pool = new helper.pg.Pool(options) |
| 144 | + |
| 145 | + let errorHit = false |
| 146 | + pool.on('error', () => { |
| 147 | + errorHit = true |
| 148 | + }) |
| 149 | + |
| 150 | + await pool.query('SELECT $1', ['foo']) |
| 151 | + await delay(100) |
| 152 | + |
| 153 | + if (!cli.native) { |
| 154 | + assert(errorHit) |
| 155 | + assert.strictEqual(pool.idleCount, 0, 'Pool should have no idle clients') |
| 156 | + assert.strictEqual(pool.totalCount, 0, 'Pool should have no connected clients') |
| 157 | + } |
| 158 | + |
| 159 | + await pool.end() |
| 160 | + await closeServer() |
| 161 | + }) |
| 162 | +} |
| 163 | + |
| 164 | +if (!helper.args.native) { |
| 165 | + testErrorBuffer('parseComplete', buffers.parseComplete()) |
| 166 | + testErrorBuffer('commandComplete', buffers.commandComplete('f')) |
| 167 | +} |
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