def extract_bower_zipfile(self, zip_file, dest, expected_version=None):
        bower_json = None
        root = None
        deps_installed = []
        for info in zip_file.infolist():
            if PurePath(info.filename).name == "bower.json":
                with zip_file.open(info) as f:
                    bower_json = json.load(f)
                    root = str(PurePath(info.filename).parent)
                break
        version = bower_json["version"]
        if expected_version is not None:
            expected_version = Bower.clean_semver(expected_version)
            if not semver.match(version, expected_version):
                click.secho("error: versions do not match ({} =/= {})".format(
                    version, expected_version))
                raise InvalidPackageError
        if "dependencies" in bower_json:
            for package, version in bower_json["dependencies"].items():
                url = Bower.get_package_url(package)
                deps_installed.extend(self.get_bower_package(
                    url, dest=dest, version=version))
        ignore_patterns = [GitIgnorePattern(ig) for ig in bower_json["ignore"]]
        path_spec = PathSpec(ignore_patterns)
        namelist = [path for path in zip_file.namelist()
                    if PurePath(path).parts[0] == root]
        ignored = list(path_spec.match_files(namelist))
        for path in namelist:
            dest_path = PurePath(
                bower_json["name"],
                *PurePath(path).parts[1:])

            if path in ignored:
                continue

            for path in ignored:
                for parent in PurePath(path):
                    if parent in ignored:
                        continue

            if path.endswith("/"):
                if list(path_spec.match_files([str(dest_path)])):
                    ignored.append(PurePath(path))
                elif not (dest / dest_path).is_dir():
                    (dest / dest_path).mkdir(parents=True)
            else:
                target_path = dest / dest_path.parent / dest_path.name
                source = zip_file.open(path)
                target = target_path.open("wb")
                with source, target:
                    shutil.copyfileobj(source, target)
        deps_installed.append((bower_json["name"], bower_json["version"]))
        return deps_installed
def testProvenanceItemFiles(self):
        """
        Test item provenance when adding, modifying, and deleting files.
        """
        item = self.item1
        admin = self.admin

        # Test adding a new file to an existing item
        fileData1 = 'Hello world'
        fileData2 = 'Hello world, again'
        fileName1 = 'helloWorld.txt'
        fileName2 = 'helloWorldEdit.txt'
        resp = self.request(
            path='/file', method='POST', user=admin, params={
                'parentType': 'item',
                'parentId': item['_id'],
                'name': fileName1,
                'size': len(fileData1),
                'mimeType': 'text/plain'
            })
        self.assertStatusOk(resp)
        uploadId = resp.json['_id']
        fields = [('offset', 0), ('uploadId', uploadId)]
        files = [('chunk', fileName1, fileData1)]
        resp = self.multipartRequest(
            path='/file/chunk', user=admin, fields=fields, files=files)
        self.assertStatusOk(resp)
        file1 = resp.json
        self._checkProvenance(None, item, 2, admin, 'fileAdded',
                              fileInfo={'fileId': str(file1['_id']),
                                        'new': {'mimeType': 'text/plain',
                                                'size': len(fileData1),
                                                'name': fileName1}})
        # Edit the file name
        resp = self.request(path='/file/%s' % file1['_id'], method='PUT',
                            user=admin, params={'name': fileName2})
        self.assertStatusOk(resp)
        self._checkProvenance(None, item, 3, admin, 'fileUpdate',
                              fileInfo={'fileId': str(file1['_id']),
                                        'old': {'name': fileName1},
                                        'new': {'name': fileName2}})
        # Reupload the file
        resp = self.request(path='/file/%s/contents' % file1['_id'],
                            method='PUT', user=admin,
                            params={'size': len(fileData2)})
        self.assertStatusOk(resp)
        uploadId = resp.json['_id']
        fields = [('offset', 0), ('uploadId', uploadId)]
        files = [('chunk', fileName1, fileData2)]
        resp = self.multipartRequest(
            path='/file/chunk', user=admin, fields=fields, files=files)
        self.assertStatusOk(resp)
        self.assertEqual(file1['_id'], resp.json['_id'])
        self._checkProvenance(None, item, 4, admin, 'fileUpdate',
                              fileInfo={'fileId': str(file1['_id']),
                                        'old': {'size': len(fileData1)},
                                        'new': {'size': len(fileData2)}})
        # Delete the file
        resp = self.request(path='/file/%s' % file1['_id'],
                            method='DELETE', user=admin)
        self.assertStatusOk(resp)
        self._checkProvenance(None, item, 5, admin, 'fileRemoved',
                              fileInfo={'fileId': str(file1['_id']),
                                        'old': {'size': len(fileData2),
                                                'name': fileName2}})