59 lines
1.6 KiB
JavaScript
59 lines
1.6 KiB
JavaScript
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const PluginAuth = require('./plugin-auth');
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/**
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* Use PAM authentication
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*/
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class PamPasswordAuth extends PluginAuth {
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constructor(packSeq, compressPackSeq, pluginData, resolve, reject, multiAuthResolver) {
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super(resolve, reject, multiAuthResolver);
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this.pluginData = pluginData;
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this.sequenceNo = packSeq;
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this.counter = 0;
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}
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start(out, opts, info) {
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this.exchange(this.pluginData, out, opts, info);
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this.onPacketReceive = this.response;
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}
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exchange(buffer, out, opts, info) {
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//conversation is :
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// - first byte is information tell if question is a password (4) or clear text (2).
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// - other bytes are the question to user
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out.startPacket(this);
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let pwd;
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if (Array.isArray(opts.password)) {
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pwd = opts.password[this.counter];
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this.counter++;
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} else {
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pwd = opts.password;
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}
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if (pwd) out.writeString(pwd);
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out.writeInt8(0);
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out.flushBuffer(true);
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}
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response(packet, out, opts, info) {
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const marker = packet.peek();
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switch (marker) {
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//*********************************************************************************************************
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//* OK_Packet and Err_Packet ending packet
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//*********************************************************************************************************
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case 0x00:
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case 0xff:
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this.emit('send_end');
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return this.successSend(packet, out, opts, info);
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default:
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let promptData = packet.readBuffer();
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this.exchange(promptData, out, opts, info);
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this.onPacketReceive = this.response;
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}
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}
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}
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module.exports = PamPasswordAuth;
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