privileges.posts.get takes an array of pids now

src/groups.js

@@ -150,6 +150,10 @@
 		db.isSetMember('group:' + groupName + ':members', uid, callback);
 	};
 
+	Groups.isMemberOfGroups = function(uid, groups, callback) {
+		db.isMemberOfSets(groups, uid, callback);
+	};
+
 	Groups.getMemberCount = function(groupName, callback) {
 		db.setCount('group:' + groupName + ':members', callback);
 	};

src/posts.js

@@ -344,6 +344,14 @@ var async = require('async'),
 		});
 	};
 
+	Posts.getPostsFields = function(pids, fields, callback) {
+		var keys = pids.map(function(pid) {
+			return 'post:' + pid;
+		});
+
+		db.getObjectsFields(keys, fields, callback);
+	};
+
 	Posts.getPostField = function(pid, field, callback) {
 		Posts.getPostFields(pid, [field], function(err, data) {
 			if(err) {
@@ -382,6 +390,28 @@ var async = require('async'),
 		});
 	};
 
+	Posts.getCidsByPids = function(pids, callback) {
+		Posts.getPostsFields(pids, ['tid'], function(err, posts) {
+			if (err) {
+				return callback(err);
+			}
+
+			var tids = posts.map(function(post) {
+				return post.tid;
+			});
+
+			topics.getTopicsFields(tids, ['cid'], function(err, topics) {
+				if (err) {
+					return callback(err);
+				}
+				var cids = topics.map(function(topic) {
+					return topic.cid;
+				});
+				callback(null, cids);
+			});
+		});
+	};
+
 	Posts.getPostsByUid = function(callerUid, uid, start, end, callback) {
 		user.getPostIds(uid, start, end, function(err, pids) {
 			if (err) {
@@ -474,9 +504,22 @@ var async = require('async'),
 	};
 
 	Posts.isOwner = function(pid, uid, callback) {
-		Posts.getPostField(pid, 'uid', function(err, author) {
-			callback(err, parseInt(author, 10) === parseInt(uid, 10));
+		uid = parseInt(uid, 10);
+		if (Array.isArray(pid)) {
+			Posts.getPostsFields(pid, ['uid'], function(err, posts) {
+				if (err) {
+					return callback(err);
+				}
+				posts = posts.map(function(post) {
+					return post && parseInt(post.uid, 10) === uid;
 				});
+				callback(null, posts);
+			});
+		} else {
+			Posts.getPostField(pid, 'uid', function(err, author) {
+				callback(err, parseInt(author, 10) === uid);
+			});
+		}
 	};
 
 	Posts.isMain = function(pid, callback) {

src/privileges/posts.js

@@ -14,12 +14,9 @@ module.exports = function(privileges) {
 
 	privileges.posts = {};
 
-	privileges.posts.get = function(pid, uid, callback) {
+	privileges.posts.get = function(pids, uid, callback) {
 
 		async.parallel({
-			isOwner: function(next) {
-				posts.isOwner(pid, uid, next);
-			},
 			manage_content: function(next) {
 				helpers.hasEnoughReputationFor('privileges:manage_content', uid, next);
 			},
@@ -29,25 +26,42 @@ module.exports = function(privileges) {
 			isAdministrator: function(next) {
 				user.isAdministrator(uid, next);
 			},
-			isModerator: function(next) {
-				posts.getCidByPid(pid, function(err, cid) {
-					if (err) {
-						return next(err);
-					}
-					user.isModerator(uid, cid, next);
-				});
-			}
-		}, function(err, results) {
+		}, function(err, userResults) {
 			if(err) {
 				return callback(err);
 			}
 
-			var editable = results.isAdministrator || results.isModerator || results.manage_content || results.manage_topic || results.isOwner;
+			var userPriv = userResults.isAdministrator || userResults.manage_topic || userResults.manage_content;
 
-			callback(null, {
+			async.parallel({
+				isOwner: function(next) {
+					posts.isOwner(pids, uid, next);
+				},
+				isModerator: function(next) {
+					posts.getCidsByPids(pids, function(err, cids) {
+						if (err) {
+							return next(err);
+						}
+						user.isModerator(uid, cids, next);
+					});
+				}
+			}, function(err, postResults) {
+				if (err) {
+					return callback(err);
+				}
+
+				var privileges = [];
+
+				for (var i=0; i<pids.length; ++i) {
+					var editable = userPriv || postResults.isModerator[i] || postResults.isOwner[i];
+					privileges.push({
 						editable: editable,
 						view_deleted: editable,
-				move: results.isAdministrator || results.isModerator
+						move: userResults.isAdministrator || postResults.isModerator[i]
+					});
+				}
+
+				callback(null, privileges);
 			});
 		});
 	};

src/socket.io/posts.js

@@ -226,12 +226,16 @@ SocketPosts.purge = function(socket, data, callback) {
 };
 
 SocketPosts.getPrivileges = function(socket, pid, callback) {
-	privileges.posts.get(pid, socket.uid, function(err, privileges) {
-		if(err) {
+	privileges.posts.get([pid], socket.uid, function(err, privileges) {
+		if (err) {
 			return callback(err);
 		}
-		privileges.pid = parseInt(pid, 10);
-		callback(null, privileges);
+		if (!Array.isArray(privileges) || !privileges.length) {
+			return callback(new Error('[[error:invalid-data]]'));
+		}
+
+		privileges[0].pid = parseInt(pid, 10);
+		callback(null, privileges[0]);
 	});
 };
 

src/topics.js

@@ -386,6 +386,13 @@ var async = require('async'),
 		db.getObjectFields('topic:' + tid, fields, callback);
 	};
 
+	Topics.getTopicsFields = function(tids, fields, callback) {
+		var keys = tids.map(function(tid) {
+			return 'topic:' + tid;
+		});
+		db.getObjectsFields(keys, fields, callback);
+	};
+
 	Topics.setTopicField = function(tid, field, value, callback) {
 		db.setObjectField('topic:' + tid, field, value, callback);
 	};

src/topics/posts.js

@@ -55,6 +55,7 @@ module.exports = function(Topics) {
 			},
 			userData: function(next) {
 				var uids = [];
+
 				for(var i=0; i<postData.length; ++i) {
 					if (uids.indexOf(postData[i].uid) === -1) {
 						uids.push(postData[i].uid);
@@ -70,6 +71,7 @@ module.exports = function(Topics) {
 					users.forEach(function(user) {
 						userData[user.uid] = user;
 					});
+
 					next(null, userData);
 				});
 			},
@@ -93,9 +95,7 @@ module.exports = function(Topics) {
 				});
 			},
 			privileges: function(next) {
-				async.map(pids, function (pid, next) {
-					privileges.posts.get(pid, uid, next);
-				}, next);
+				privileges.posts.get(pids, uid, next);
 			}
 		}, function(err, results) {
 			if(err) {

src/user.js

@@ -405,7 +405,14 @@ var bcrypt = require('bcryptjs'),
 	};
 
 	User.isModerator = function(uid, cid, callback) {
+		if (Array.isArray(cid)) {
+			var groupNames = cid.map(function(cid) {
+				return 'cid:' + cid + ':privileges:mods';
+			});
+			groups.isMemberOfGroups(uid, groupNames, callback);
+		} else {
 			groups.isMember(uid, 'cid:' + cid + ':privileges:mods', callback);
+		}
 	};
 
 	User.isAdministrator = function(uid, callback) {