git ssb

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var SsbRef = require("ssb-ref");
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var Publish = module.exports = {};
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var help = Publish.help = function () {
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    console.log("Try: ");
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    console.log("./publish.js name type data (class)");
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};
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var TYPES = Publish.TYPES = ['A', 'AAAA', 'CNAME', 'HINFO', 'ISDN', 'MX', 'NS', 'PTR', 'SOA', 'TXT'];
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var isValidType = Publish.isValidType = function (t) {
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    return TYPES.indexOf(t) !== -1;
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};
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var CLASSES = Publish.CLASSES = ['IN', 'CH'];
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var isValidClass = Publish.isValidClass = function (c) {
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    return CLASSES.indexOf(c) !== -1;
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};
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var endsInSSB = Publish.endsInSSB = function (s) {
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    return /\.ssb$/i.test(s);
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};
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var validateRecord = Publish.validateRecord = function (record) {
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    if (!endsInSSB(record.name)) { return "[Record NameError] records must end in .ssb"; }
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    if (!isValidType(record.type)) { return "[Record TypeError] " + record.type + " is not a valid dns type"; }
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    if (!isValidClass(record.class)) { return "[Record ClassError] class must be one of [" + CLASSES.join(', ') + "]"; }
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    // TODO perform stricter validation on data
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    if (!(record.data && typeof(record.data) === 'string')) { return "[Record DataError] expected data to publish"; }
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};
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var makeRecord = Publish.makeRecord = function (name, type, data, _class) {
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    return {
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        name: typeof(name) === 'string' && name.toLowerCase(), // domain names must be lowercase
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        type: type,
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        data: data,
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        class: _class || 'IN',
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    };
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};
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Publish.record = function (branches, name, type, data, _class, cb) {
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    var record = makeRecord(name, type, data, _class);
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    var complaint = validateRecord(record);
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    if (complaint) { return void cb(new Error(complaint)); }
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    if (!branches.every(SsbRef.isMsgId)) {
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        return void cb(new Error("invalid branches"));
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    }
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    require("ssb-client")(function (err, sbot) {
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        if (err) { return void cb(err); }
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        var val = {
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          type: "ssb-dns",
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          record: record
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        }
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        if (branches.length > 1) val.branch = branches;
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        else if (branches.length == 1) val.branch = branches[0];
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        // publish a message
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        sbot.publish(val, function (err, msg) {
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            if (err) { return void cb(err); }
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            sbot.close();
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            return void cb(err, msg);
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        })
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    });
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};
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