closes #3991

src/groups.js

@@ -18,6 +18,7 @@ var utils = require('../public/src/utils');
 	require('./groups/membership')(Groups);
 	require('./groups/ownership')(Groups);
 	require('./groups/search')(Groups);
+	require('./groups/cover')(Groups);
 
 	var ephemeralGroups = ['guests'],
 
@@ -412,6 +413,7 @@ var utils = require('../public/src/utils');
 					group.disableJoinRequests = parseInt(group.disableJoinRequests) === 1;
 
 					group['cover:url'] = group['cover:url'] || require('./coverPhoto').getDefaultGroupCover(group.name);
+					group['cover:thumb:url'] = group['cover:thumb:url'] || group['cover:url'];
 					group['cover:position'] = group['cover:position'] || '50% 50%';
 				}
 			});

src/groups/cover.js

@@ -0,0 +1,119 @@
+'use strict';
+
+var async = require('async');
+var nconf = require('nconf');
+var path = require('path');
+var fs = require('fs');
+var crypto = require('crypto');
+var Jimp = require('jimp');
+
+
+var db = require('../database');
+var uploadsController = require('../controllers/uploads');
+
+module.exports = function(Groups) {
+
+	Groups.updateCoverPosition = function(groupName, position, callback) {
+		if (!groupName) {
+			return callback(new Error('[[error:invalid-data]]'));
+		}
+		Groups.setGroupField(groupName, 'cover:position', position, callback);
+	};
+
+	Groups.updateCover = function(uid, data, callback) {
+
+		// Position only? That's fine
+		if (!data.imageData && data.position) {
+			return Groups.updateCoverPosition(data.groupName, data.position, callback);
+		}
+
+		var tempPath = data.file ? data.file : '';
+		var url;
+
+		async.waterfall([
+			function (next) {
+				if (tempPath) {
+					return next(null, tempPath);
+				}
+				writeImageDataToFile(data.imageData, next);
+			},
+			function (_tempPath, next) {
+				tempPath = _tempPath;
+				uploadsController.uploadGroupCover(uid, {
+					name: 'groupCover',
+					path: tempPath
+				}, next);
+			},
+			function (uploadData, next) {
+				url = uploadData.url;
+				Groups.setGroupField(data.groupName, 'cover:url', url, next);
+			},
+			function (next) {
+				resizeCover(tempPath, next);
+			},
+			function (next) {
+				uploadsController.uploadGroupCover(uid, {
+					name: 'groupCoverThumb',
+					path: tempPath
+				}, next);
+			},
+			function (uploadData, next) {
+				Groups.setGroupField(data.groupName, 'cover:thumb:url', uploadData.url, next);
+			},
+			function (next){
+				fs.unlink(tempPath, next);	// Delete temporary file
+			}
+		], function (err) {
+			if (err) {
+				return callback(err);
+			}
+
+			if (data.position) {
+				Groups.updateCoverPosition(data.groupName, data.position, function(err) {
+					callback(err, {url: url});
+				});
+			} else {
+				callback(err, {url: url});
+			}
+		});
+	};
+
+	function resizeCover(path, callback) {
+		async.waterfall([
+			function (next) {
+				new Jimp(path, next);
+			},
+			function (image, next) {
+				image.resize(358, Jimp.AUTO, next);
+			},
+			function (image, next) {
+				image.write(path, next);
+			}
+		], function (err) {
+			callback(err);
+		});
+	}
+
+	function writeImageDataToFile(imageData, callback) {
+		// Calculate md5sum of image
+		// This is required because user data can be private
+		var md5sum = crypto.createHash('md5');
+		md5sum.update(imageData);
+		md5sum = md5sum.digest('hex');
+
+		// Save image
+		var tempPath = path.join(nconf.get('base_dir'), nconf.get('upload_path'), md5sum);
+		var buffer = new Buffer(imageData.slice(imageData.indexOf('base64') + 7), 'base64');
+
+		fs.writeFile(tempPath, buffer, {
+			encoding: 'base64'
+		}, function(err) {
+			callback(err, tempPath);
+		});
+	}
+
+	Groups.removeCover = function(data, callback) {
+		db.deleteObjectField('group:' + data.groupName, 'cover:url', callback);
+	};
+
+};

src/groups/update.js

@@ -1,17 +1,12 @@
 'use strict';
 
-var async = require('async'),
-	winston = require('winston'),
-	crypto = require('crypto'),
-	path = require('path'),
-	nconf = require('nconf'),
-	fs = require('fs'),
+var async = require('async');
+var winston = require('winston');
 
-	plugins = require('../plugins'),
-	utils = require('../../public/src/utils'),
-	db = require('../database'),
+var plugins = require('../plugins');
+var utils = require('../../public/src/utils');
+var db = require('../database');
 
-	uploadsController = require('../controllers/uploads');
 
 module.exports = function(Groups) {
 
@@ -114,82 +109,6 @@ module.exports = function(Groups) {
 		});
 	}
 
-	Groups.updateCoverPosition = function(groupName, position, callback) {
-		Groups.setGroupField(groupName, 'cover:position', position, callback);
-	};
-
-	Groups.updateCover = function(uid, data, callback) {
-		var tempPath, md5sum, url;
-
-		// Position only? That's fine
-		if (!data.imageData && data.position) {
-			return Groups.updateCoverPosition(data.groupName, data.position, callback);
-		}
-
-		async.series([
-			function(next) {
-				if (data.file) {
-					return next();
-				}
-
-				// Calculate md5sum of image
-				// This is required because user data can be private
-				md5sum = crypto.createHash('md5');
-				md5sum.update(data.imageData);
-				md5sum = md5sum.digest('hex');
-				next();
-			},
-			function(next) {
-				if (data.file) {
-					return next();
-				}
-
-				// Save image
-				tempPath = path.join(nconf.get('base_dir'), nconf.get('upload_path'), md5sum);
-				var buffer = new Buffer(data.imageData.slice(data.imageData.indexOf('base64') + 7), 'base64');
-
-				fs.writeFile(tempPath, buffer, {
-					encoding: 'base64'
-				}, next);
-			},
-			function(next) {
-				uploadsController.uploadGroupCover(uid, {
-					name: 'groupCover',
-					path: data.file ? data.file : tempPath
-				}, function(err, uploadData) {
-					if (err) {
-						return next(err);
-					}
-
-					url = uploadData.url;
-					next();
-				});
-			},
-			function(next) {
-				Groups.setGroupField(data.groupName, 'cover:url', url, next);
-			},
-			function(next) {
-				fs.unlink(data.file ? data.file : tempPath, next);	// Delete temporary file
-			}
-		], function(err) {
-			if (err) {
-				return callback(err);
-			}
-
-			if (data.position) {
-				Groups.updateCoverPosition(data.groupName, data.position, function(err) {
-					callback(err, {url: url});
-				});
-			} else {
-				callback(err, {url: url});
-			}
-		});
-	};
-
-	Groups.removeCover = function(data, callback) {
-		db.deleteObjectField('group:' + data.groupName, 'cover:url', callback);
-	};
-
 	function updatePrivacy(groupName, newValue, callback) {
 		if (!newValue) {
 			return callback();