gravatars will be generated on demand

changing the setting in ACP will affect all default gravatars now.

src/posts.js

@@ -283,7 +283,7 @@ var db = require('./database'),
 
 			async.parallel({
 				user: function(next) {
-					user.getNameSlugPicture(post.uid, next);
+					user.getUserFields(post.uid, ['username', 'userslug', 'picture'], next);
 				},
 				topicCategory: function(next) {
 					topics.getTopicFields(post.tid, ['title', 'cid', 'slug', 'deleted'], function(err, topicData) {

src/routes/authentication.js

@@ -10,6 +10,7 @@
 		meta = require('./../meta'),
 		user = require('./../user'),
 		plugins = require('./../plugins'),
+		db = require('../database'),
 		utils = require('./../../public/src/utils'),
 
 		login_strategies = [];
@@ -174,7 +175,7 @@
 				return next(null, false, '[[error:no-user]]');
 			}
 
-			user.getUserFields(uid, ['password', 'banned'], function(err, userData) {
+			db.getObjectFields('user:' + uid, ['password', 'banned'], function(err, userData) {
 				if (err) {
 					return next(err);
 				}

src/topics.js

@@ -62,13 +62,13 @@ var async = require('async'),
 				return callback(err || new Error('[[error:no-topic]]'));
 			}
 
-			user.getNameSlugPicture(topic.uid, function(err, userData) {
+			user.getUserFields(topic.uid, ['username', 'userslug', 'picture'], function(err, userData) {
 				if (err) {
 					return callback(err);
 				}
 
 				topic.user = userData;
-				callback(err, topic);
+				callback(null, topic);
 			});
 		});
 	};
@@ -211,8 +211,7 @@ var async = require('async'),
 					if (userCache[topicData.uid]) {
 						return next(null, userCache[topicData.uid]);
 					}
-
-					user.getNameSlugPicture(topicData.uid, next);
+					user.getUserFields(topicData.uid, ['username', 'userslug', 'picture'], next);
 				}
 			}, function(err, topicInfo) {
 				if(err) {
@@ -325,7 +324,7 @@ var async = require('async'),
 					return callback(new Error('[[error:no-teaser]]'));
 				}
 
-				user.getNameSlugPicture(postData.uid, function(err, userData) {
+				user.getUserFields(postData.uid, ['username', 'userslug', 'picture'], function(err, userData) {
 					if (err) {
 						return callback(err);
 					}

src/user.js

@@ -33,14 +33,25 @@ var bcrypt = require('bcryptjs'),
 	require('./user/jobs')(User);
 
 	User.getUserField = function(uid, field, callback) {
-		db.getObjectField('user:' + uid, field, callback);
+		User.getUserFields(uid, [field], function(err, user) {
+			callback(err, user ? user[field] : null);
+		});
 	};
 
 	User.getUserFields = function(uid, fields, callback) {
-		db.getObjectFields('user:' + uid, fields, callback);
+		User.getMultipleUserFields([uid], fields, function(err, users) {
+			callback(err, users ? users[0] : null);
+		});
 	};
 
 	User.getMultipleUserFields = function(uids, fields, callback) {
+		var fieldsToRemove = [];
+		function addField(field) {
+			if (fields.indexOf(field) === -1) {
+				fields.push(field);
+				fieldsToRemove.push(field);
+			}
+		}
 
 		if (!Array.isArray(uids) || !uids.length) {
 			return callback(null, []);
@@ -50,7 +61,21 @@ var bcrypt = require('bcryptjs'),
 			return 'user:' + uid;
 		});
 
-		db.getObjectsFields(keys, fields, callback);
+		addField('uid');
+
+		if (fields.indexOf('picture') !== -1) {
+			addField('email');
+			addField('gravatarpicture');
+			addField('uploadedpicture');
+		}
+
+		db.getObjectsFields(keys, fields, function(err, users) {
+			if (err) {
+				return callback(err);
+			}
+
+			callback(null, modifyUserData(users, fieldsToRemove));
+		});
 	};
 
 	User.getUserData = function(uid, callback) {
@@ -74,24 +99,42 @@ var bcrypt = require('bcryptjs'),
 				return callback(err);
 			}
 
-			users.forEach(function(user) {
-				if (user) {
-					if (user.password) {
-						user.password = null;
-						user.hasPassword = true;
-					} else {
-						user.hasPassword = false;
-					}
+			callback(null, modifyUserData(users, []));
+		});
+	};
 
-					if (user.picture === user.uploadedpicture) {
-						user.picture = nconf.get('relative_path') + user.picture;
-					}
+	function modifyUserData(users, fieldsToRemove) {
+		users.forEach(function(user) {
+			if (!user) {
+				return;
+			}
+
+			user.hasPassword = !!user.password;
+			if (user.password) {
+				user.password = null;
+			}
+
+			if (parseInt(user.uid, 10) === 0) {
+				user.username = '[[global:guest]]';
+				user.userslug = '';
+			}
+
+			if (user.picture) {
+				if (user.picture === user.uploadedpicture) {
+					user.picture = nconf.get('relative_path') + user.picture;
+				} else {
+					user.picture = User.createGravatarURLFromEmail(user.email);
 				}
-			});
+			} else {
+				user.picture = User.createGravatarURLFromEmail('');
+			}
 
-			callback(null, users);
+			for(var i=0; i<fieldsToRemove.length; ++i) {
+				user[fieldsToRemove[i]] = undefined;
+			}
 		});
-	};
+		return users;
+	}
 
 	User.updateLastOnlineTime = function(uid, callback) {
 		User.getUserField(uid, 'status', function(err, status) {
@@ -177,7 +220,7 @@ var bcrypt = require('bcryptjs'),
 	User.decrementUserFieldBy = function(uid, field, value, callback) {
 		db.incrObjectFieldBy('user:' + uid, field, -value, function(err, value) {
 			plugins.fireHook('action:user.set', field, value, 'decrement');
-			
+
 			if (typeof callback === 'function') {
 				callback(err, value);
 			}
@@ -304,20 +347,6 @@ var bcrypt = require('bcryptjs'),
 		});
 	};
 
-	User.getNameSlugPicture = function(uid, callback) {
-		User.getUserFields(uid, ['username', 'userslug', 'picture'], function(err, data) {
-			if (err) {
-				return callback(err);
-			}
-
-			callback(null, {
-				username: data.username || '[[global:guest]]',
-				userslug: data.userslug || '',
-				picture: data.picture || User.createGravatarURLFromEmail('')
-			});
-		});
-	};
-
 	User.getUidByUsername = function(username, callback) {
 		db.getObjectField('username:uid', username, callback);
 	};

src/user/profile.js

@@ -234,7 +234,7 @@ module.exports = function(User) {
 				hashAndSetPassword(callback);
 			});
 		} else {
-			User.getUserField(uid, 'password', function(err, currentPassword) {
+			db.getObjectField('user:' + uid, 'password', function(err, currentPassword) {
 				if(err) {
 					return callback(err);
 				}