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standardize pin calculation routine

This commit is contained in:
ansuz 2019-04-17 14:46:46 +02:00
parent d5a9eacef0
commit 5c9cd5ffc6
4 changed files with 49 additions and 89 deletions
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43
lib/pins.js Normal file
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@ -0,0 +1,43 @@
/*jshint esversion: 6 */
var Pins = module.exports;
/*
takes contents of a pinFile (UTF8 string)
and the pin file's name
returns an array of of channel ids which are pinned
throw errors on pin logs with invalid pin data
*/
Pins.calculateFromLog = function (pinFile, fileName) {
var pins = {};
pinFile.split('\n').filter((x)=>(x)).map((l) => JSON.parse(l)).forEach((l) => {
switch (l[0]) {
case 'RESET': {
pins = {};
if (l[1] && l[1].length) { l[1].forEach((x) => { pins[x] = 1; }); }
//jshint -W086
// fallthrough
}
case 'PIN': {
l[1].forEach((x) => { pins[x] = 1; });
break;
}
case 'UNPIN': {
l[1].forEach((x) => { delete pins[x]; });
break;
}
default:
// FIXME logging
// TODO write to the error log
/* Log.error('CORRUPTED_PIN_LOG', {
line: JSON.stringify(l),
fileName: fileName,
}); */
console.error(new Error (JSON.stringify(l) + ' ' + fileName));
}
});
return Object.keys(pins);
};
// TODO refactor to include a streaming version for use in rpc.js as well

27
scripts/check-account-deletion.js
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@ -4,32 +4,9 @@ const nThen = require('nthen');
const Pinned = require('./pinned');
const Nacl = require('tweetnacl');
const Path = require('path');
const Pins = require('../lib/pins');
const Config = require('../lib/load-config');
const hashesFromPinFile = (pinFile, fileName) => {
var pins = {};
pinFile.split('\n').filter((x)=>(x)).map((l) => JSON.parse(l)).forEach((l) => {
switch (l[0]) {
case 'RESET': {
pins = {};
if (l[1] && l[1].length) { l[1].forEach((x) => { pins[x] = 1; }); }
//jshint -W086
// fallthrough
}
case 'PIN': {
l[1].forEach((x) => { pins[x] = 1; });
break;
}
case 'UNPIN': {
l[1].forEach((x) => { delete pins[x]; });
break;
}
default: throw new Error(JSON.stringify(l) + ' ' + fileName);
}
});
return Object.keys(pins);
};
var escapeKeyCharacters = function (key) {
return key && key.replace && key.replace(/\//g, '-');
};
@ -61,7 +38,7 @@ nThen((waitFor) => {
let f = Path.join(pinPath, edPublic.slice(0, 2), edPublic + '.ndjson');
Fs.readFile(f, waitFor((err, content) => {
if (err) { throw err; }
pinned = hashesFromPinFile(content.toString('utf8'), f);
pinned = Pins.calculateFromLog(content.toString('utf8'), f);
}));
}).nThen((waitFor) => {
Pinned.load(waitFor((d) => {

35
scripts/pinned.js
View File

@ -4,6 +4,7 @@ const Path = require("path");
const Semaphore = require('saferphore');
const Once = require("../lib/once");
const nThen = require('nthen');
const Pins = require("../lib/pins");
const sema = Semaphore.create(20);
@ -11,38 +12,6 @@ let dirList;
const fileList = [];
const pinned = {};
// FIXME this seems to be duplicated in a few places.
// make it a library and put it in ./lib/
const checkPinStatus = (pinFile, fileName) => {
var pins = {};
pinFile.split('\n').filter((x)=>(x)).map((l) => JSON.parse(l)).forEach((l) => {
switch (l[0]) {
case 'RESET': {
pins = {};
if (l[1] && l[1].length) { l[1].forEach((x) => { pins[x] = 1; }); }
//jshint -W086
// fallthrough
}
case 'PIN': {
l[1].forEach((x) => { pins[x] = 1; });
break;
}
case 'UNPIN': {
l[1].forEach((x) => { delete pins[x]; });
break;
}
default:
// TODO write to the error log
/* Log.error('CORRUPTED_PIN_LOG', {
line: JSON.stringify(l),
fileName: fileName,
}); */
console.error(new Error (JSON.stringify(l) + ' ' + fileName));
}
});
return Object.keys(pins);
};
module.exports.load = function (cb, config) {
var pinPath = config.pinPath || './pins';
var done = Once(cb);
@ -84,7 +53,7 @@ module.exports.load = function (cb, config) {
waitFor.abort();
return void done(err);
}
const hashes = checkPinStatus(content.toString('utf8'), f);
const hashes = Pins.calculateFromLog(content.toString('utf8'), f);
hashes.forEach((x) => {
(pinned[x] = pinned[x] || {})[f.replace(/.*\/([^/]*).ndjson$/, (x, y)=>y)] = 1;
});

33
scripts/pinneddata.js
View File

@ -3,36 +3,7 @@ const Fs = require('fs');
const Semaphore = require('saferphore');
const nThen = require('nthen');
const Path = require('path');
/*
takes contents of a pinFile (UTF8 string)
and the pin file's name
returns an array of of channel ids which are pinned
throw errors on pin logs with invalid pin data
*/
const hashesFromPinFile = (pinFile, fileName) => {
var pins = {};
pinFile.split('\n').filter((x)=>(x)).map((l) => JSON.parse(l)).forEach((l) => {
switch (l[0]) {
case 'RESET': {
pins = {};
if (l[1] && l[1].length) { l[1].forEach((x) => { pins[x] = 1; }); }
break;
}
case 'PIN': {
l[1].forEach((x) => { pins[x] = 1; });
break;
}
case 'UNPIN': {
l[1].forEach((x) => { delete pins[x]; });
break;
}
default: throw new Error(JSON.stringify(l) + ' ' + fileName);
}
});
return Object.keys(pins);
};
const Pins = require('../lib/pins');
/*
takes an array of pinned file names
@ -152,7 +123,7 @@ module.exports.load = function (config, cb) {
Fs.readFile(f, waitFor(returnAfter((err, content) => {
if (err) { throw err; }
// get the list of channels pinned by this log
const hashes = hashesFromPinFile(content.toString('utf8'), f);
const hashes = Pins.calculateFromLog(content.toString('utf8'), f);
if (config.unpinned) {
hashes.forEach((x) => { pinned[x] = 1; });
} else {