Add upload image dimension check/limitation for rank, squad and decoration images (CC-69)

server/middleware/validators.js

@@ -4,7 +4,7 @@
 const codes = require('../routes/http-codes');
 
 // library to check image dimensions from file buffer
-var sizeOf = require('buffer-image-size');
+const sizeOf = require('buffer-image-size');
 
 /**
  * check if id has valid UUID format
@@ -27,8 +27,6 @@ const idValidator = (req, res, next) => {
 
 const imageDimensionValidator = (imageFileBuf, maxWidth, maxHeight) => {
   const dimensions = sizeOf(imageFileBuf);
-  console.log(dimensions.width)
-  console.log(dimensions.height)
   if (dimensions.width > maxWidth || dimensions.height > maxHeight) {
     let err = new Error(`Image exceeds maximum dimensions of ${maxWidth}px width and ${maxHeight}px height`);
     err.status = codes.wrongrequest;

server/routes/decorations.js

@@ -13,6 +13,7 @@ const codes = require('./http-codes');
 const apiAuthenticationMiddleware = require('../middleware/auth-middleware');
 const checkHl = require('../middleware/permission-check').checkHl;
 
+const genericGetById = require('./_generic').genericGetById;
 const routerHandling = require('../middleware/router-handling');
 const idValidator = require('../middleware/validators').idValidator;
 const resourceLocation = require('../middleware/resource-location').resourceLocation().concat('/decoration/');
@@ -22,12 +23,16 @@ const DecorationModel = require('../models/decoration');
 const AwardingsModel = require('../models/awarding');
 
 // util
-const genericGetById = require('./_generic').genericGetById;
+const imageDimensionValidator = require('../middleware/validators').imageDimensionValidator;
+const MAX_MEDAL_IMAGE_WIDTH = 100;
+const MAX_MEDAL_IMAGE_HEIGHT = 150;
+const MAX_RIBBON_IMAGE_WIDTH = 150;
+const MAX_RIBBON_IMAGE_HEIGHT = 50;
 
-const decoration = new express.Router();
+const decorationRouter = new express.Router();
 
 // routes **********************
-decoration.route('/')
+decorationRouter.route('/')
                 .get((req, res, next) => {
                   const filter = {};
                   if (req.query.fractFilter) {
@@ -59,7 +64,17 @@ decoration.route('/')
                 })
 
                 .post(apiAuthenticationMiddleware, checkHl, upload.single('image'), (req, res, next) => {
+                  if (req.file) {
                     const decoration = new DecorationModel(req.body);
+
+                    const imageFileBuffer = req.file.buffer;
+                    const err = imageDimensionValidator(imageFileBuffer,
+                      (decoration.isMedal ? MAX_MEDAL_IMAGE_WIDTH : MAX_RIBBON_IMAGE_WIDTH),
+                      (decoration.isMedal ? MAX_MEDAL_IMAGE_HEIGHT : MAX_RIBBON_IMAGE_HEIGHT));
+                    if (err) {
+                      return next(err);
+                    }
+
                     // timestamp and default are set automatically by Mongoose Schema Validation
                     decoration.save((err) => {
                       if (err) {
@@ -76,21 +91,28 @@ decoration.route('/')
                         });
                       next();
                     });
+                  } else {
+                    const err = new Error('no image file provided');
+                    err.status = codes.wrongmediasend;
+                    next(err);
+                  }
                 })
 
                 .all(
                   routerHandling.httpMethodNotAllowed
                 );
 
-decoration.route('/:id')
+decorationRouter.route('/:id')
                 .get(idValidator, (req, res, next) => {
                   return genericGetById(req, res, next, DecorationModel);
                 })
 
                 .patch(apiAuthenticationMiddleware, checkHl, upload.single('image'), (req, res, next) => {
                   if (!req.body || (req.body._id && req.body._id !== req.params.id)) {
-              // little bit different as in PUT. :id does not need to be in data, but if the _id and url id must match
+                    // little bit different as in PUT. :id does not need to be in data, but if the _id and url id must
-              const err = new Error('id of PATCH resource and send JSON body are not equal ' + req.params.id + ' ' +
+                    // match
+                    const err = new Error(
+                      'id of PATCH resource and send JSON body are not equal ' + req.params.id + ' ' +
                       req.body._id);
                     err.status = codes.notfound;
                     next(err);
@@ -101,7 +123,19 @@ decoration.route('/:id')
                   req.body.updatedAt = new Date();
                   req.body.$inc = {__v: 1};
 
+                  DecorationModel.findById(req.body._id, (err, item) => {
+                    if (err) {
+                      return next(err);
+                    }
                     if (req.file) {
+                      const imageFileBuffer = req.file.buffer;
+                      const imageDimensionError = imageDimensionValidator(imageFileBuffer,
+                        (item.isMedal ? MAX_MEDAL_IMAGE_WIDTH : MAX_RIBBON_IMAGE_WIDTH),
+                        (item.isMedal ? MAX_MEDAL_IMAGE_HEIGHT : MAX_RIBBON_IMAGE_HEIGHT));
+                      if (imageDimensionError) {
+                        return next(imageDimensionError);
+                      }
+
                       const file = resourceLocation + req.params.id + '.png';
                       fs.unlink(file, (err) => {
                         if (err) next(err);
@@ -111,8 +145,8 @@ decoration.route('/:id')
                       });
                     }
 
-            // PATCH is easier with mongoose than PUT. You simply update by all data that comes from outside. no need
+                    // PATCH is easier with mongoose than PUT. You simply update by all data that comes from outside. no
-            // to reset attributes that are missing.
+                    // need to reset attributes that are missing.
                     DecorationModel.findByIdAndUpdate(req.params.id, req.body, {new: true}, (err, item) => {
                       if (err) {
                         err.status = codes.wrongrequest;
@@ -124,6 +158,7 @@ decoration.route('/:id')
                       }
                       next(err);
                     });
+                  });
                 })
 
                 .delete(apiAuthenticationMiddleware, checkHl, (req, res, next) => {
@@ -142,7 +177,8 @@ decoration.route('/:id')
                     // delete graphic
                     fs.unlink(resourceLocation.concat(id).concat('.png'),
                       (err) => {
-                  // we don't set res.locals.items and thus it will send a 204 (no content) at the end. see last handler
+                        // we don't set res.locals.items and thus it will send a 204 (no content) at the end. see last
+                        // handler
                         res.locals.processed = true;
                         next(err);
                       });
@@ -155,7 +191,7 @@ decoration.route('/:id')
 
 // this middleware function can be used, if you like or remove it
 // it looks for object(s) in res.locals.items and if they exist, they are send to the client as json
-decoration.use(routerHandling.emptyResponse);
+decorationRouter.use(routerHandling.emptyResponse);
 
 
-module.exports = decoration;
+module.exports = decorationRouter;

server/routes/ranks.js

@@ -56,14 +56,14 @@ ranks.route('/')
      })
 
      .post(apiAuthenticationMiddleware, checkHl, upload.single('image'), (req, res, next) => {
-       const rank = new RankModel(req.body);
+       if (req.file) {
          const imageFileBuffer = req.file.buffer;
-
          const err = imageDimensionValidator(imageFileBuffer, MAX_IMAGE_WIDTH, MAX_IMAGE_HEIGHT);
          if (err) {
            return next(err);
          }
 
+         const rank = new RankModel(req.body);
          // timestamp and default are set automatically by Mongoose Schema Validation
          rank.save((err) => {
            if (err) {
@@ -77,6 +77,11 @@ ranks.route('/')
                next(err);
              });
          });
+       } else {
+         const err = new Error('no image file provided');
+         err.status = codes.wrongmediasend;
+         next(err);
+       }
      })
 
      .all(

server/routes/squads.js

@@ -22,6 +22,9 @@ const SquadModel = require('../models/squad');
 
 // util
 const genericGetById = require('./_generic').genericGetById;
+const imageDimensionValidator = require('../middleware/validators').imageDimensionValidator;
+const MAX_IMAGE_WIDTH = 150;
+const MAX_IMAGE_HEIGHT = 150;
 
 const squads = new express.Router();
 
@@ -54,6 +57,12 @@ squads.route('/')
         const squad = new SquadModel(req.body);
         // timestamp and default are set automatically by Mongoose Schema Validation
         if (req.file) {
+          const imageFileBuffer = req.file.buffer;
+          const err = imageDimensionValidator(imageFileBuffer, MAX_IMAGE_WIDTH, MAX_IMAGE_HEIGHT);
+          if (err) {
+            return next(err);
+          }
+
           squad.save((err) => {
             if (err) {
               err.status = codes.wrongrequest;
@@ -62,8 +71,7 @@ squads.route('/')
             }
             res.status(codes.created);
             res.locals.items = squad;
-            fs.appendFile(resourceLocation.concat(squad._id).concat('.png'),
+            fs.appendFile(resourceLocation.concat(squad._id).concat('.png'), new Buffer(imageFileBuffer), (err) => {
-              new Buffer(req.file.buffer), (err) => {
               next(err);
             });
           });
@@ -98,11 +106,16 @@ squads.route('/:id')
         req.body.$inc = {__v: 1};
 
         if (req.file) {
+          const imageFileBuffer = req.file.buffer;
+          const err = imageDimensionValidator(imageFileBuffer, MAX_IMAGE_WIDTH, MAX_IMAGE_HEIGHT);
+          if (err) {
+            return next(err);
+          }
           const file = resourceLocation.concat(req.params.id)
                                        .concat('.png');
           fs.unlink(file, (err) => {
             if (err) next(err);
-            fs.appendFile(file, new Buffer(req.file.buffer), (err) => {
+            fs.appendFile(file, new Buffer(imageFileBuffer), (err) => {
               if (err) next(err);
             });
           });

static/src/app/manage/decorations/edit-decoration/edit-decoration.component.ts

@@ -66,7 +66,7 @@ export class EditDecorationComponent implements OnInit, OnDestroy {
       if (this.fileList) {
         file = this.fileList[0];
         this.decorationService.submitDecoration(this.decoration, file)
-            .subscribe(rank => {
+            .subscribe(decoration => {
               this.router.navigate(['..'], {relativeTo: this.route});
             });
       } else {
@@ -83,12 +83,15 @@ export class EditDecorationComponent implements OnInit, OnDestroy {
       }
       delete this.decoration['__v'];
       this.decorationService.submitDecoration(this.decoration, file)
-          .subscribe(rank => {
+          .subscribe(decoration => {
             setTimeout(() => {
               this.imagePreviewSrc = 'resource/decoration/' + this.decoration._id + '.png?' + Date.now();
             }, 300);
             fileInput.value = '';
             this.snackBarService.showSuccess('generic.save.success');
+          }, error => {
+            const errorMsg = error._body ? JSON.parse(error._body).error.message : error.error.error.message;
+            this.snackBarService.showError('Error: '.concat(errorMsg), 15000);
           });
     }
   }

static/src/app/manage/squads/edit-squad/edit-squad.component.ts

@@ -69,7 +69,7 @@ export class EditSquadComponent implements OnInit, OnDestroy {
       if (this.fileList) {
         file = this.fileList[0];
         this.squadService.submitSquad(this.squad, file)
-            .subscribe(rank => {
+            .subscribe(squad => {
               this.saved = true;
               this.router.navigate(['..'], {relativeTo: this.route});
             });
@@ -87,12 +87,15 @@ export class EditSquadComponent implements OnInit, OnDestroy {
       }
       delete this.squad['__v'];
       this.squadService.submitSquad(this.squad, file)
-          .subscribe(rank => {
+          .subscribe(squad => {
             setTimeout(() => {
               this.imagePreviewSrc = 'resource/squad/' + this.squad._id + '.png?' + Date.now();
             }, 300);
             fileInput.value = '';
             this.snackBarService.showSuccess('generic.save.success');
+          }, error => {
+            const errorMsg = error._body ? JSON.parse(error._body).error.message : error.error.error.message;
+            this.snackBarService.showError('Error: '.concat(errorMsg), 15000);
           });
     }
   }