user: move avatar handling into model code

src/users.js

@@ -30,6 +30,10 @@ exports = module.exports = {
     sendPasswordResetByIdentifier: sendPasswordResetByIdentifier,
 
     setupAccount,
+    getAvatarUrlSync,
+    getAvatarFileSync,
+    setAvatar,
+    clearAvatar,
 
     count: count,
 
@@ -57,9 +61,11 @@ let assert = require('assert'),
     debug = require('debug')('box:user'),
     eventlog = require('./eventlog.js'),
     externalLdap = require('./externalldap.js'),
+    fs = require('fs'),
     groups = require('./groups.js'),
     hat = require('./hat.js'),
     mailer = require('./mailer.js'),
+    path = require('path'),
     paths = require('./paths.js'),
     qrcode = require('qrcode'),
     safe = require('safetydance'),
@@ -793,3 +799,38 @@ function delAppPassword(id, callback) {
         callback(null);
     });
 }
+
+function getAvatarFileSync(id) {
+    assert.strictEqual(typeof id, 'string');
+
+    return path.join(paths.PROFILE_ICONS_DIR, id);
+}
+
+function getAvatarUrlSync(user) {
+    assert.strictEqual(typeof user, 'object');
+
+    if (fs.existsSync(path.join(paths.PROFILE_ICONS_DIR, user.id))) return `${settings.adminOrigin()}/api/v1/profile/avatar/${user.id}`;
+
+    const emailHash = require('crypto').createHash('md5').update(user.email).digest('hex');
+    return `https://www.gravatar.com/avatar/${emailHash}.jpg`;
+}
+
+function setAvatar(id, filename, callback) {
+    assert.strictEqual(typeof id, 'string');
+    assert.strictEqual(typeof filename, 'string');
+    assert.strictEqual(typeof callback, 'function');
+
+    fs.rename(filename, path.join(paths.PROFILE_ICONS_DIR, id), function (error) {
+        if (error) return callback(new BoxError(BoxError.FS_ERROR, error.message));
+
+        callback();
+    });
+}
+
+function clearAvatar(id, callback) {
+    assert.strictEqual(typeof id, 'string');
+    assert.strictEqual(typeof callback, 'function');
+
+    safe.fs.unlinkSync(path.join(paths.PROFILE_ICONS_DIR, id));
+    callback();
+}