Allow to disable gravatar

Since Gravatar is an external image source and not perfect from a
privacy perspective, forbidding it allows to improve privacy.

This commit also simplifies and optimizes the avatar code.

Signed-off-by: Sheogorath <sheogorath@shivering-isles.com>

1 files changed, 5 insertions, 25 deletions

diff --git a/lib/models/user.js b/lib/models/user.js
index 5dd13869..1bd8c745 100644
--- a/lib/models/user.js
+++ b/lib/models/user.js
@@ -1,6 +1,5 @@
 'use strict'
 // external modules
-var md5 = require('blueimp-md5')
 var Sequelize = require('sequelize')
 var scrypt = require('scrypt')
 
@@ -128,10 +127,7 @@ module.exports = function (sequelize, DataTypes) {
             }
             break
           case 'dropbox':
-            // no image api provided, use gravatar
-            photo = 'https://www.gravatar.com/avatar/' + md5(profile.emails[0].value)
-            if (bigger) photo += '?s=400'
-            else photo += '?s=96'
+            photo = generateAvatarURL('', profile.emails[0].value, bigger)
             break
           case 'google':
             photo = profile.photos[0].value
@@ -139,35 +135,19 @@ module.exports = function (sequelize, DataTypes) {
             else photo = photo.replace(/(\?sz=)\d*$/i, '$196')
             break
           case 'ldap':
-            // no image api provided,
-            // use gravatar if email exists,
-            // otherwise generate a letter avatar
-            if (profile.emails[0]) {
-              photo = 'https://www.gravatar.com/avatar/' + md5(profile.emails[0])
-              if (bigger) photo += '?s=400'
-              else photo += '?s=96'
-            } else {
-              photo = generateAvatarURL(profile.username)
-            }
+            photo = generateAvatarURL(profile.username, profile.emails[0], bigger)
             break
           case 'saml':
-            if (profile.emails[0]) {
-              photo = 'https://www.gravatar.com/avatar/' + md5(profile.emails[0])
-              if (bigger) photo += '?s=400'
-              else photo += '?s=96'
-            } else {
-              photo = generateAvatarURL(profile.username)
-            }
+            photo = generateAvatarURL(profile.username, profile.emails[0], bigger)
             break
         }
         return photo
       },
       parseProfileByEmail: function (email) {
-        var photoUrl = 'https://www.gravatar.com/avatar/' + md5(email)
         return {
           name: email.substring(0, email.lastIndexOf('@')),
-          photo: photoUrl + '?s=96',
-          biggerphoto: photoUrl + '?s=400'
+          photo: generateAvatarURL('', email, false),
+          biggerphoto: generateAvatarURL('', email, true)
         }
       }
     }