[GSoC2024] Decode uploaded filename from request header (#7646)

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### Motivation and context
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This fixes issue #6528, as filenames with special characters must be
decoded from the MIME header back into UTF-8.

### How has this been tested?
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---------

Co-authored-by: Andrey Zhavoronkov <andrey@cvat.ai>

changelog.d/20240320_174524_andrew.yunxiang.md

@@ -0,0 +1,4 @@
+### Fixed
+
+- Creating tasks with special characters in uploaded filename
+  (<https://github.com/opencv/cvat/pull/7646>)

cvat/apps/engine/views.py

@@ -983,7 +983,7 @@ def init_tus_upload(self, request):
         response = super().init_tus_upload(request)
 
         if self._is_data_uploading() and response.status_code == status.HTTP_201_CREATED:
-            self._maybe_append_upload_info_entry(response['Upload-Filename'])
+            self._maybe_append_upload_info_entry(self._get_metadata(request)['filename'])
 
         return response
 

tests/cypress/e2e/actions_tasks3/issue_6528_upload_filename_special_character.js

@@ -0,0 +1,50 @@
+// Copyright (C) 2020-2022 Intel Corporation
+//
+// SPDX-License-Identifier: MIT
+
+/// <reference types="cypress" />
+
+context('Create task with special character in uploaded filename', () => {
+    const issueId = '6528';
+    const labelName = `Issue ${issueId}`;
+    const taskName = `New annotation task for ${labelName}`;
+    const attrName = `Attr for ${labelName}`;
+    const textDefaultValue = 'Some default value for type Text';
+    const imagesCount = 1;
+    const imageFileName = `image_${labelName.replace(' ', '_').toLowerCase()}`;
+    const width = 1920;
+    const height = 1080;
+    const posX = 10;
+    const posY = 10;
+    const color = 'gray';
+    const archiveName = `${imageFileName}👀.zip`;
+    const archivePath = `cypress/fixtures/${archiveName}`;
+    const imagesFolder = `cypress/fixtures/${imageFileName}`;
+    const directoryToArchive = imagesFolder;
+    const zipLevel = 0;
+    const extension = 'bmp';
+
+    before(() => {
+        cy.visit('auth/login');
+        cy.login();
+        cy.imageGenerator(imagesFolder, imageFileName, width, height, color, posX,
+            posY, labelName, imagesCount, extension);
+        cy.createZipArchive(directoryToArchive, archivePath, zipLevel);
+        cy.window().then((win) => { win.cvat.config.uploadChunkSize = 5; });
+    });
+
+    describe(`Testing "${labelName}"`, () => {
+        it('Create a task with 5mb upload chunk size', () => {
+            cy.createAnnotationTask(taskName, labelName, attrName, textDefaultValue, archiveName);
+        });
+
+        it('Check if task exist', () => {
+            cy.goToTaskList();
+            cy.contains('.cvat-item-task-name', taskName).should('exist');
+        });
+    });
+
+    after(() => {
+        cy.window().then((win) => { win.cvat.config.uploadChunkSize = 100; });
+    });
+});