220 lines
5.0 KiB
JavaScript
220 lines
5.0 KiB
JavaScript
const { promisify } = require("./utils");
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const pull = require("pull-stream");
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const cat = require("pull-cat");
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const latestOwnerValue = (ssbServer) => ({ key, dest }, cb) => {
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let value = null;
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pull(
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ssbServer.query.read({
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reverse: true,
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query: [
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{
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$filter: {
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value: {
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author: dest,
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content: { type: "about", about: dest },
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},
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},
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},
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],
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}),
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pull.filter((msg) => {
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return (
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msg.value.content &&
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key in msg.value.content &&
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!(msg.value.content[key] && msg.value.content[key].remove)
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);
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}),
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pull.take(1),
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pull.drain(
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(msg) => {
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value = msg.value.content[key];
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},
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(err) => {
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if (err) return cb(err);
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if (!value) {
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ssbServer.about.latestValue({ key, dest }, cb);
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} else {
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cb(null, value);
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}
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}
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)
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);
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};
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const mapAuthorName = (ssbServer) => (data, callback) => {
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let promises = [];
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const authorNamePromise = promisify(latestOwnerValue(ssbServer), {
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key: "name",
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dest: data.value.author,
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});
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promises.push(authorNamePromise);
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if (data.value.content.type == "contact") {
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const contactNamePromise = promisify(latestOwnerValue(ssbServer), {
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key: "name",
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dest: data.value.content.contact,
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});
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promises.push(contactNamePromise);
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}
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return Promise.all(promises)
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.then(([authorName, contactName]) => {
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data.value.authorName = authorName;
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if (contactName) {
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data.value.content.contactName = contactName;
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}
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callback(null, data);
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})
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.catch((err) => callback(err, null));
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};
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const getPosts = (ssbServer, profile) =>
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new Promise((resolve, reject) => {
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pull(
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// @ts-ignore
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cat([
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ssbServer.query.read({
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reverse: true,
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query: [
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{
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$filter: {
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value: {
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content: { type: "post", wall: profile.id },
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},
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},
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},
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],
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limit: 100,
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}),
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ssbServer.query.read({
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reverse: true,
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query: [
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{
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$filter: {
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value: {
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author: profile.id,
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content: {
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type: "post",
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wall: { $not: true },
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root: { $not: true },
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},
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},
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},
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},
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],
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limit: 100,
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}),
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]),
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pull.asyncMap(mapAuthorName(ssbServer)),
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pull.collect((err, msgs) => {
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const entries = msgs.map((x) => x.value);
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if (err) return reject(err);
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return resolve(entries);
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})
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);
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});
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const searchPeople = (ssbServer, search) =>
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new Promise((resolve, reject) => {
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pull(
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ssbServer.query.read({
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reverse: true,
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query: [
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{
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$filter: {
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value: {
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content: {
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type: "about",
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name: { $is: "string" },
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},
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},
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},
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},
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],
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}),
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pull.filter((msg) => {
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return (
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msg.value.content &&
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msg.value.author == msg.value.content.about &&
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msg.value.content.name.includes(search)
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);
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}),
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pull.collect((err, msgs) => {
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const entries = msgs.map((x) => x.value);
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if (err) return reject(err);
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return resolve(Object.values(entries));
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})
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);
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});
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const getFriends = (ssbServer, profile) =>
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new Promise((resolve, reject) => {
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pull(
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ssbServer.query.read({
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reverse: true,
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query: [
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{
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$filter: {
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value: {
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author: profile.id,
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content: {
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type: "contact",
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},
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},
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},
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},
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],
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limit: 500,
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}),
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pull.asyncMap(mapAuthorName(ssbServer)),
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pull.collect((err, msgs) => {
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const entries = msgs.map((x) => x.value);
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if (err) return reject(err);
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return resolve(entries);
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})
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);
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});
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const getAllEntries = (ssbServer) =>
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new Promise((resolve, reject) => {
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pull(
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ssbServer.query.read({
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reverse: true,
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limit: 500,
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}),
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pull.collect((err, msgs) => {
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const entries = msgs.map((x) => x.value);
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if (err) return reject(err);
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return resolve(entries);
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})
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);
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});
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const getProfile = async (ssbServer, id) => {
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let [name, imageHash] = await Promise.all([
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promisify(latestOwnerValue(ssbServer), { key: "name", dest: id }),
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promisify(latestOwnerValue(ssbServer), { key: "image", dest: id }),
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]);
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imageHash =
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imageHash && typeof imageHash == "object" ? imageHash.link : imageHash;
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const image = imageHash && `/blob/${encodeURIComponent(imageHash)}`;
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return { id, name, image };
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};
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module.exports = {
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mapAuthorName,
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getPosts,
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searchPeople,
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getFriends,
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getAllEntries,
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getProfile,
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};
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