add threshold for image resizing

install/data/defaults.json

@@ -33,10 +33,11 @@
     "allowUserHomePage": 1,
     "allowMultipleBadges": 0,
     "maximumFileSize": 2048,
-    "maximumImageWidth": 760,
+    "resizeImageWidthThreshold": 2000,
+    "resizeImageWidth": 760,
     "rejectImageWidth": 5000,
     "rejectImageHeight": 5000,
-    "resizeImageQuality": 60,
+    "resizeImageQuality": 80,
     "topicThumbSize": 120,
     "minimumTitleLength": 3,
     "maximumTitleLength": 255,

public/language/en-GB/admin/settings/uploads.json

@@ -4,8 +4,10 @@
 	"private": "Make uploaded files private",
 	"private-extensions": "File extensions to make private",
 	"private-uploads-extensions-help": "Enter comma-separated list of file extensions to make private here (e.g. <code>pdf,xls,doc</code>). An empty list means all files are private.",
-	"max-image-width": "Resize images down to specified width (in pixels)",
-	"max-image-width-help": "(in pixels, default: 760 pixels, set to 0 to disable)",
+	"resize-image-width-threshold": "Resize images if they are wider than specified width",
+	"resize-image-width-threshold-help": "(in pixels, default: 1520 pixels, set to 0 to disable)",
+	"resize-image-width": "Resize images down to specified width",
+	"resize-image-width-help": "(in pixels, default: 760 pixels, set to 0 to disable)",
 	"resize-image-quality": "Quality to use when resizing images",
 	"resize-image-quality-help": "Use a lower quality setting to reduce the file size of resized images.",
 	"max-file-size": "Maximum File Size (in KiB)",

src/controllers/uploads.js

@@ -71,7 +71,7 @@ function uploadAsImage(req, uploadedFile, callback) {
 			uploadsController.uploadFile(req.uid, uploadedFile, next);
 		},
 		function (fileObj, next) {
-			if (meta.config.maximumImageWidth === 0) {
+			if (meta.config.resizeImageWidth === 0 || meta.config.resizeImageWidthThreshold === 0) {
 				return next(null, fileObj);
 			}
 
@@ -112,14 +112,14 @@ function resizeImage(fileObj, callback) {
 			image.size(fileObj.path, next);
 		},
 		function (imageData, next) {
-			if (imageData.width < meta.config.maximumImageWidth) {
+			if (imageData.width < meta.config.resizeImageWidthThreshold || meta.config.resizeImageWidth > meta.config.resizeImageWidthThreshold) {
 				return callback(null, fileObj);
 			}
 
 			image.resizeImage({
 				path: fileObj.path,
 				target: file.appendToFileName(fileObj.path, '-resized'),
-				width: meta.config.maximumImageWidth,
+				width: meta.config.resizeImageWidth,
 				quality: meta.config.resizeImageQuality,
 			}, next);
 		},

src/upgrades/1.11.0/resize_image_width.js

@@ -0,0 +1,24 @@
+'use strict';
+
+var db = require('../../database');
+
+var async = require('async');
+
+module.exports = {
+	name: 'Rename maximumImageWidth to resizeImageWidth',
+	timestamp: Date.UTC(2018, 9, 24),
+	method: function (callback) {
+		const meta = require('../../meta');
+		async.waterfall([
+			function (next) {
+				meta.configs.get('maximumImageWidth', next);
+			},
+			function (value, next) {
+				meta.configs.set('resizeImageWidth', value, next);
+			},
+			function (next) {
+				db.deleteObjectField('config', 'maximumImageWidth', next);
+			},
+		], callback);
+	},
+};

src/views/admin/settings/post.tpl

@@ -48,10 +48,10 @@
 						<label for="maximumPostLength">[[admin/settings/post:restrictions.max-post-length]]</label>
 						<input id="maximumPostLength" type="text" class="form-control" value="32767" data-field="maximumPostLength">
 					</div>
+				</div>
+			</div>
 		</form>
 	</div>
-		</div>
-	</div>
 </div>
 
 <div class="row">

src/views/admin/settings/uploads.tpl

@@ -28,13 +28,27 @@
 				</p>
 			</div>
 
+			<div class="row">
+				<div class="col-xs-6">
 					<div class="form-group">
-				<label for="maximumImageWidth">[[admin/settings/uploads:max-image-width]]</label>
-				<input type="text" class="form-control" value="760" data-field="maximumImageWidth" placeholder="760">
+						<label for="resizeImageWidthThreshold">[[admin/settings/uploads:resize-image-width-threshold]]</label>
+						<input type="text" class="form-control" value="2000" data-field="resizeImageWidthThreshold" placeholder="2000">
 						<p class="help-block">
-					[[admin/settings/uploads:max-image-width-help]]
+							[[admin/settings/uploads:resize-image-width-threshold-help]]
 						</p>
 					</div>
+				</div>
+
+				<div class="col-xs-6">
+					<div class="form-group">
+						<label for="resizeImageWidth">[[admin/settings/uploads:resize-image-width]]</label>
+						<input type="text" class="form-control" value="760" data-field="resizeImageWidth" placeholder="760">
+						<p class="help-block">
+							[[admin/settings/uploads:resize-image-width-help]]
+						</p>
+					</div>
+				</div>
+			</div>
 
 			<div class="form-group">
 				<label for="resizeImageQuality">[[admin/settings/uploads:resize-image-quality]]</label>
@@ -89,6 +103,7 @@
 			</div>
 		</form>
 	</div>
+
 </div>
 
 <div class="row">

test/uploads.js

@@ -108,15 +108,17 @@ describe('Upload Controllers', function () {
 		});
 
 		it('should resize and upload an image to a post', function (done) {
-			var oldValue = meta.config.maximumImageWidth;
-			meta.config.maximumImageWidth = 10;
+			var oldValue = meta.config.resizeImageWidth;
+			meta.config.resizeImageWidth = 10;
+			meta.config.resizeImageWidthThreshold = 10;
 			helpers.uploadFile(nconf.get('url') + '/api/post/upload', path.join(__dirname, '../test/files/test.png'), {}, jar, csrf_token, function (err, res, body) {
 				assert.ifError(err);
 				assert.equal(res.statusCode, 200);
 				assert(Array.isArray(body));
 				assert(body[0].url);
 				assert(body[0].url.match(/\/assets\/uploads\/files\/\d+-test-resized\.png/));
-				meta.config.maximumImageWidth = oldValue;
+				meta.config.resizeImageWidth = oldValue;
+				meta.config.resizeImageWidthThreshold = 1520;
 				done();
 			});
 		});