问题修复

hydro/lib/misc.js

@@ -0,0 +1,41 @@
+const md5 = require('./md5');
+exports.gravatar_url = function (email, size) {
+    return `//gravatar.loli.net/avatar/${md5((email || '').toString().trim().toLowerCase())}?d=mm&s=${size}`;
+};
+exports.datetime_span = function (dt, { relative = true } = {}) {
+    if (dt.generationTime) dt = new Date(dt.generationTime * 1000);
+    else if (typeof dt == 'number' || typeof dt == 'string') dt = new Date(dt);
+    return '<span class="time{0}" data-timestamp="{1}">{2}</span>'.format(
+        relative ? ' relative' : '',
+        dt.getTime() / 1000,
+        dt.toLocaleString()
+    );
+};
+exports.paginate = function* (page, num_pages) {
+    let radius = 2, first, last;
+    if (page > 1) {
+        yield ['first', 1];
+        yield ['previous', page - 1];
+    }
+    if (page <= radius) [first, last] = [1, Math.min(1 + radius * 2, num_pages)];
+    else if (page >= num_pages - radius) [first, last] = [Math.max(1, num_pages - radius * 2), num_pages];
+    else[first, last] = [page - radius, page + radius];
+    if (first > 1) yield ['ellipsis', 0];
+    for (let page0 = first; page0 < last + 1; page0++) {
+        if (page0 != page) yield ['page', page0];
+        else yield ['current', page];
+    }
+    if (last < num_pages) yield ['ellipsis', 0];
+    if (page < num_pages) yield ['next', page + 1];
+    yield ['last', num_pages];
+};
+exports.format_size = function (size, base = 1) {
+    size *= base;
+    let unit = 1024;
+    let unit_names = ['Bytes', 'KiB', 'MiB', 'GiB', 'TiB', 'PiB', 'EiB', 'ZiB', 'YiB'];
+    for (let unit_name of unit_names) {
+        if (size < unit) return '{0} {1}'.format(Math.round(size), unit_name);
+        size /= unit;
+    }
+    return '{0} {1}'.format(Math.round(size * unit), unit_names[unit_names.length - 1]);
+};

hydro/lib/pwhash.js

@@ -0,0 +1,26 @@
+const crypto = require('crypto');
+module.exports = {
+    _b64encode: str => new Buffer(str).toString('base64'),
+    _b64decode: str => new Buffer(str, 'base64').toString(),
+    _md5: str => crypto.createHash('md5').update(str).digest('hex'),
+    _sha1: str => crypto.createHash('sha1').update(str).digest('hex'),
+    /**
+     * @param {string} password
+     * @param {string} salt
+     * @param {string} hash
+     */
+    check(password, salt, hash) {
+        return hash == this.hash(password, salt);
+    },
+    /**
+     * @param {string} password
+     * @param {string} salt
+     */
+    hash(password, salt) {
+        let res = crypto.pbkdf2Sync(password, salt, 100000, 64, 'sha256');
+        return res.toString('Hex');
+    },
+    salt() {
+        return String.random();
+    }
+};