86 lines
2.2 KiB
JavaScript
86 lines
2.2 KiB
JavaScript
// Differently from ssb-identities, this plugin only keeps keys in memory, as we don't want to save them on the server
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const ssbKeys = require("ssb-keys");
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const { create } = require("ssb-validate");
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exports.name = "identities";
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exports.version = "1.0.0";
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exports.manifest = {
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create: "sync",
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addUnboxer: "sync",
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publishAs: "async",
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createNewKey: "sync",
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};
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let unboxersAdded = [];
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let locks = {};
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const toTarget = (t) => (typeof t == "object" ? t && t.link : t);
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const addUnboxer = (ssb) => (key) => {
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if (unboxersAdded.includes(key.id)) return;
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ssb.addUnboxer({
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key: (content) => {
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const unboxKey = ssbKeys.unboxKey(content, key);
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if (unboxKey) return unboxKey;
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},
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value: (content, key) => {
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return ssbKeys.unboxBody(content, key);
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},
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});
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unboxersAdded.push(key.id);
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};
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const publishAs = (ssb, config) => ({ key, private, content }, cb) => {
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const id = key.id;
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if (locks[id]) throw new Error("already writing");
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const recps = [].concat(content.recps).map(toTarget);
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if (content.recps && !private) {
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return new Error("recps set, but private not set");
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} else if (!content.recps && private) {
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return new Error("private set, but content.recps not set");
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} else if (!!content.recps && private) {
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if (!Array.isArray(content.recps) || !~recps.indexOf(id))
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return new Error(
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"content.recps must be an array containing publisher id:" +
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id +
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" was:" +
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JSON.stringify(recps) +
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" indexOf:" +
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recps.indexOf(id)
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);
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content = ssbKeys.box(content, recps);
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}
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locks[id] = true;
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ssb.getLatest(id, (_err, data) => {
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const state = data
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? {
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id: data.key,
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sequence: data.value.sequence,
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timestamp: data.value.timestamp,
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queue: [],
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}
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: { id: null, sequence: null, timestamp: null, queue: [] };
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ssb.add(
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create(state, key, config.caps && config.caps.sign, content, Date.now()),
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(err, a, b) => {
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delete locks[id];
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cb(err, a, b);
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}
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);
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});
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};
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exports.init = function (ssb, config) {
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return {
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addUnboxer: addUnboxer(ssb),
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publishAs: publishAs(ssb, config),
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createNewKey: ssbKeys.generate,
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};
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};
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