Prevent creation of attributes with invalid characters

packages/consumption/src/consumption/ConsumptionCoreErrors.ts

@@ -277,6 +277,10 @@ class Attributes {
     public invalidTags(tags: string[]): ApplicationError {
         return new ApplicationError("error.consumption.attributes.invalidTags", `Detected invalidity of the following tags: '${tags.join("', '")}'.`);
     }
+
+    public forbiddenCharactersInAttribute(message: string) {
+        return new CoreError("error.consumption.attributes.forbiddenCharactersInAttribute", message);
+    }
 }
 
 class Requests {

packages/consumption/src/modules/attributes/AttributesController.ts

@@ -233,6 +233,10 @@ export class AttributesController extends ConsumptionBaseController {
         };
         parsedParams.content = IdentityAttribute.from(trimmedAttribute);
 
+        if (!this.validateAttributeCharacters(parsedParams.content)) {
+            throw ConsumptionCoreErrors.attributes.forbiddenCharactersInAttribute("The Attribute contains forbidden characters.");
+        }
+
         let localAttribute = LocalAttribute.from({
             id: parsedParams.id ?? (await ConsumptionIds.attribute.generate()),
             createdAt: CoreDate.utc(),
@@ -1011,6 +1015,10 @@ export class AttributesController extends ConsumptionBaseController {
             return ValidationResult.error(ConsumptionCoreErrors.attributes.setPredecessorIdDoesNotMatchActualPredecessorId());
         }
 
+        if (!this.validateAttributeCharacters(successor.content)) {
+            return ValidationResult.error(ConsumptionCoreErrors.attributes.forbiddenCharactersInAttribute("The successor contains forbidden characters."));
+        }
+
         return ValidationResult.success();
     }
 
@@ -1515,6 +1523,17 @@ export class AttributesController extends ConsumptionBaseController {
         return !validTags;
     }
 
+    public validateAttributeCharacters(attribute: IdentityAttribute | RelationshipAttribute): boolean {
+        const regex =
+            /^([\u0009-\u000A]|\u000D|[ -~]|[ -¬]|[®-ž]|[Ƈ-ƈ]|Ə|Ɨ|[Ơ-ơ]|[Ư-ư]|Ʒ|[Ǎ-ǜ]|[Ǟ-ǟ]|[Ǣ-ǰ]|[Ǵ-ǵ]|[Ǹ-ǿ]|[Ȓ-ȓ]|[Ș-ț]|[Ȟ-ȟ]|[ȧ-ȳ]|ə|ɨ|ʒ|[ʹ-ʺ]|[ʾ-ʿ]|ˈ|ˌ|[Ḃ-ḃ]|[Ḇ-ḇ]|[Ḋ-ḑ]|ḗ|[Ḝ-ḫ]|[ḯ-ḷ]|[Ḻ-ḻ]|[Ṁ-ṉ]|[Ṓ-ṛ]|[Ṟ-ṣ]|[Ṫ-ṯ]|[Ẁ-ẇ]|[Ẍ-ẗ]|ẞ|[Ạ-ỹ]|’|‡|€|A̋|C(̀|̄|̆|̈|̕|̣|̦|̨̆)|D̂|F(̀|̄)|G̀|H(̄|̦|̱)|J(́|̌)|K(̀|̂|̄|̇|̕|̛|̦|͟H|͟h)|L(̂|̥|̥̄|̦)|M(̀|̂|̆|̐)|N(̂|̄|̆|̦)|P(̀|̄|̕|̣)|R(̆|̥|̥̄)|S(̀|̄|̛̄|̱)|T(̀|̄|̈|̕|̛)|U̇|Z(̀|̄|̆|̈|̧)|a̋|c(̀|̄|̆|̈|̕|̣|̦|̨̆)|d̂|f(̀|̄)|g̀|h(̄|̦)|j́|k(̀|̂|̄|̇|̕|̛|̦|͟h)|l(̂|̥|̥̄|̦)|m(̀|̂|̆|̐)|n(̂|̄|̆|̦)|p(̀|̄|̕|̣)|r(̆|̥|̥̄)|s(̀|̄|̛̄|̱)|t(̀|̄|̕|̛)|u̇|z(̀|̄|̆|̈|̧)|Ç̆|Û̄|ç̆|û̄|ÿ́|Č(̕|̣)|č(̕|̣)|ē̍|Ī́|ī́|ō̍|Ž(̦|̧)|ž(̦|̧)|Ḳ̄|ḳ̄|Ṣ̄|ṣ̄|Ṭ̄|ṭ̄|Ạ̈|ạ̈|Ọ̈|ọ̈|Ụ(̄|̈)|ụ(̄|̈))*$/;
+        if (attribute instanceof IdentityAttribute) {
+            return Object.values(attribute.value.toJSON()).every((entry) => typeof entry !== "string" || regex.test(entry));
+        }
+
+        const nonDescriptiveEntries = Object.entries(attribute.value.toJSON()).filter((entry) => !["title", "description"].includes(entry[0]));
+        return nonDescriptiveEntries.every((entry) => typeof entry[1] !== "string" || regex.test(entry[1]));
+    }
+
     public async setAttributeDeletionInfoOfDeletionProposedRelationship(relationshipId: CoreId): Promise<void> {
         const relationship = await this.parent.accountController.relationships.getRelationship(relationshipId);
         if (!relationship) throw TransportCoreErrors.general.recordNotFound(Relationship, relationshipId.toString());

packages/consumption/src/modules/requests/itemProcessors/createAttribute/CreateAttributeRequestItemProcessor.ts

@@ -24,6 +24,10 @@ export class CreateAttributeRequestItemProcessor extends GenericRequestItemProce
         const senderIsAttributeOwner = requestItem.attribute.owner.equals(this.currentIdentityAddress);
         const ownerIsEmptyString = requestItem.attribute.owner.toString() === "";
 
+        if (!this.consumptionController.attributes.validateAttributeCharacters(requestItem.attribute)) {
+            return ValidationResult.error(ConsumptionCoreErrors.requests.invalidRequestItem("The Attribute contains forbidden characters."));
+        }
+
         if (requestItem.attribute instanceof IdentityAttribute) {
             if (senderIsAttributeOwner) {
                 return ValidationResult.error(
@@ -78,6 +82,10 @@ export class CreateAttributeRequestItemProcessor extends GenericRequestItemProce
     }
 
     public override async canAccept(requestItem: CreateAttributeRequestItem, _params: AcceptRequestItemParametersJSON, requestInfo: LocalRequestInfo): Promise<ValidationResult> {
+        if (!this.consumptionController.attributes.validateAttributeCharacters(requestItem.attribute)) {
+            throw ConsumptionCoreErrors.attributes.forbiddenCharactersInAttribute("The Attribute contains forbidden characters.");
+        }
+
         if (requestItem.attribute instanceof RelationshipAttribute) {
             const ownerIsEmptyString = requestItem.attribute.owner.toString() === "";
 

packages/consumption/src/modules/requests/itemProcessors/proposeAttribute/ProposeAttributeRequestItemProcessor.ts

@@ -76,6 +76,9 @@ export class ProposeAttributeRequestItemProcessor extends GenericRequestItemProc
                 )
             );
         }
+        if (!this.consumptionController.attributes.validateAttributeCharacters(attribute)) {
+            return ValidationResult.error(ConsumptionCoreErrors.requests.invalidRequestItem("The Attribute contains forbidden characters."));
+        }
 
         const tagValidationResult = await this.consumptionController.attributes.validateTagsOfAttribute(attribute);
         if (tagValidationResult.isError()) {
@@ -191,6 +194,10 @@ export class ProposeAttributeRequestItemProcessor extends GenericRequestItemProc
             );
         }
 
+        if (!this.consumptionController.attributes.validateAttributeCharacters(attribute)) {
+            return ValidationResult.error(ConsumptionCoreErrors.requests.invalidAcceptParameters("The Attribute contains forbidden characters."));
+        }
+
         const answerToQueryValidationResult = validateAttributeMatchesWithQuery(requestItem.query, attribute, this.currentIdentityAddress, requestInfo.peer);
         if (answerToQueryValidationResult.isError()) return answerToQueryValidationResult;
 

packages/consumption/src/modules/requests/itemProcessors/readAttribute/ReadAttributeRequestItemProcessor.ts

@@ -222,6 +222,10 @@ export class ReadAttributeRequestItemProcessor extends GenericRequestItemProcess
             );
         }
 
+        if (!this.consumptionController.attributes.validateAttributeCharacters(attribute)) {
+            return ValidationResult.error(ConsumptionCoreErrors.requests.invalidAcceptParameters("The Attribute contains forbidden characters."));
+        }
+
         const answerToQueryValidationResult = validateAttributeMatchesWithQuery(requestItem.query, attribute, this.currentIdentityAddress, requestInfo.peer);
         if (answerToQueryValidationResult.isError()) return answerToQueryValidationResult;
 

packages/consumption/test/modules/attributes/AttributesController.test.ts

@@ -13,6 +13,7 @@ import {
     IIQLQuery,
     IRelationshipAttributeQuery,
     Nationality,
+    ProprietaryString,
     RelationshipAttribute,
     RelationshipAttributeConfidentiality,
     Street,
@@ -110,6 +111,22 @@ describe("AttributesController", function () {
             mockEventBus.expectPublishedEvents(AttributeCreatedEvent);
         });
 
+        test("should not create a new attribute with a forbidden character", async function () {
+            const params: ICreateRepositoryAttributeParams = {
+                content: IdentityAttribute.from({
+                    value: {
+                        "@type": "DisplayName",
+                        value: "aDisplayName😀"
+                    },
+                    owner: consumptionController.accountController.identity.address
+                })
+            };
+
+            await expect(consumptionController.attributes.createRepositoryAttribute(params)).rejects.toThrow(
+                "error.consumption.attributes.forbiddenCharactersInAttribute: 'The Attribute contains forbidden characters.'"
+            );
+        });
+
         test("should trim whitespace for a RepositoryAttribute", async function () {
             const params: ICreateRepositoryAttributeParams = {
                 content: IdentityAttribute.from({
@@ -1278,6 +1295,35 @@ describe("AttributesController", function () {
 
     describe("succeed Attributes", function () {
         describe("Common validator", function () {
+            test("should catch a forbidden character in the successor", async function () {
+                const predecessor = await consumptionController.attributes.createRepositoryAttribute({
+                    content: IdentityAttribute.from({
+                        value: {
+                            "@type": "GivenName",
+                            value: "aGivenName"
+                        },
+                        owner: consumptionController.accountController.identity.address,
+                        tags: ["x:aTag"]
+                    })
+                });
+
+                const successorData: IAttributeSuccessorParams = {
+                    content: IdentityAttribute.from({
+                        value: {
+                            "@type": "GivenName",
+                            value: "aGivenName😀"
+                        },
+                        owner: consumptionController.accountController.identity.address,
+                        tags: ["x:aTag"]
+                    })
+                };
+
+                const validationResult = await consumptionController.attributes.validateAttributeSuccessionCommon(predecessor.id, successorData);
+                expect(validationResult).errorValidationResult({
+                    code: "error.consumption.attributes.forbiddenCharactersInAttribute"
+                });
+            });
+
             test("should catch if content doesn't change", async function () {
                 const predecessor = await consumptionController.attributes.createRepositoryAttribute({
                     content: IdentityAttribute.from({
@@ -3682,4 +3728,43 @@ describe("AttributesController", function () {
             verify(attributesControllerSpy["setTagCollection"](anything())).twice();
         });
     });
+
+    describe("validate attribute values", function () {
+        test("should catch forbidden characters in an IdentityAttribute", function () {
+            expect(
+                consumptionController.attributes.validateAttributeCharacters(
+                    IdentityAttribute.from({
+                        owner: CoreAddress.from("anAddress"),
+                        value: City.from({ value: "aCity😀" })
+                    })
+                )
+            ).toBe(false);
+        });
+
+        test("should catch forbidden characters in a RelationshipAttribute", function () {
+            expect(
+                consumptionController.attributes.validateAttributeCharacters(
+                    RelationshipAttribute.from({
+                        key: "aKey",
+                        owner: CoreAddress.from("anAddress"),
+                        confidentiality: RelationshipAttributeConfidentiality.Public,
+                        value: ProprietaryString.from({ title: "aTitle", value: "aProprietaryStringValue😀" })
+                    })
+                )
+            ).toBe(false);
+        });
+
+        test("should allow all characters in a RelationshipAttribute's title and description", function () {
+            expect(
+                consumptionController.attributes.validateAttributeCharacters(
+                    RelationshipAttribute.from({
+                        key: "aKey",
+                        owner: CoreAddress.from("anAddress"),
+                        confidentiality: RelationshipAttributeConfidentiality.Public,
+                        value: ProprietaryString.from({ title: "aTitle😀", value: "aProprietaryStringValue", description: "aDescription😀" })
+                    })
+                )
+            ).toBe(true);
+        });
+    });
 });

packages/consumption/test/modules/requests/itemProcessors/createAttribute/CreateAttributeRequestItemProcessor.test.ts

@@ -152,6 +152,19 @@ describe("CreateAttributeRequestItemProcessor", function () {
             });
         });
 
+        test("returns Error when passing an IdentityAttribute with a forbidden character", async function () {
+            const identityAttributeOfRecipient = TestObjectFactory.createIdentityAttribute({
+                owner: TestIdentity.PEER,
+                value: GivenName.from({ value: "aGivenName😀" })
+            });
+
+            await When.iCallCanCreateOutgoingRequestItemWith({ attribute: identityAttributeOfRecipient });
+            await Then.theCanCreateResultShouldBeAnErrorWith({
+                code: "error.consumption.requests.invalidRequestItem",
+                message: "The Attribute contains forbidden characters."
+            });
+        });
+
         test("returns Error when passing a RelationshipAttribute with same key as an already existing RelationshipAttribute of this Relationship", async function () {
             const relationshipAttributeOfSender = TestObjectFactory.createRelationshipAttribute({
                 owner: TestIdentity.CURRENT_IDENTITY,
@@ -276,6 +289,15 @@ describe("CreateAttributeRequestItemProcessor", function () {
             await Then.theCanAcceptResultShouldBeASuccess();
         });
 
+        test("cannot create an IdentityAttribute with a forbidden character", async function () {
+            await Given.aRequestItemWithAnIdentityAttribute({
+                attributeOwner: TestIdentity.PEER,
+                value: GivenName.from({ value: "aGivenName😀" })
+            });
+
+            await expect(When.iCallCanAccept()).rejects.toThrow("error.consumption.attributes.forbiddenCharactersInAttribute: 'The Attribute contains forbidden characters.'");
+        });
+
         test("cannot create another RelationshipAttribute with same key", async function () {
             const relationshipAttributeOfRecipient = TestObjectFactory.createRelationshipAttribute({
                 owner: TestIdentity.PEER

packages/consumption/test/modules/requests/itemProcessors/proposeAttribute/ProposeAttributeRequestItemProcessor.test.ts

@@ -126,6 +126,28 @@ describe("ProposeAttributeRequestItemProcessor", function () {
             expect(result).successfulValidationResult();
         });
 
+        test("returns an error when passing a forbidden character", async () => {
+            const recipient = CoreAddress.from("Recipient");
+
+            const requestItem = ProposeAttributeRequestItem.from({
+                mustBeAccepted: false,
+                attribute: TestObjectFactory.createIdentityAttribute({
+                    value: GivenName.fromAny({ value: "aGivenName😀" }),
+                    owner: CoreAddress.from("")
+                }),
+                query: IdentityAttributeQuery.from({
+                    valueType: "GivenName"
+                })
+            });
+
+            const result = await processor.canCreateOutgoingRequestItem(requestItem, Request.from({ items: [requestItem] }), recipient);
+
+            expect(result).errorValidationResult({
+                code: "error.consumption.requests.invalidRequestItem",
+                message: "The Attribute contains forbidden characters."
+            });
+        });
+
         test("returns an error when passing anything other than an empty string as an owner into 'attribute'", async () => {
             const requestItem = ProposeAttributeRequestItem.from({
                 mustBeAccepted: false,
@@ -485,6 +507,49 @@ describe("ProposeAttributeRequestItemProcessor", function () {
             expect(result).successfulValidationResult();
         });
 
+        test("returns an error when the attribute contains a forbidden character", async function () {
+            const sender = CoreAddress.from("Sender");
+            const recipient = accountController.identity.address;
+
+            const requestItem = ProposeAttributeRequestItem.from({
+                mustBeAccepted: true,
+                query: IdentityAttributeQuery.from({ valueType: "GivenName" }),
+                attribute: TestObjectFactory.createIdentityAttribute()
+            });
+            const requestId = await ConsumptionIds.request.generate();
+            const request = LocalRequest.from({
+                id: requestId,
+                createdAt: CoreDate.utc(),
+                isOwn: false,
+                peer: sender,
+                status: LocalRequestStatus.DecisionRequired,
+                content: Request.from({
+                    id: requestId,
+                    items: [requestItem]
+                }),
+                statusLog: []
+            });
+
+            const acceptParams: AcceptProposeAttributeRequestItemParametersWithNewAttributeJSON = {
+                accept: true,
+                attribute: {
+                    "@type": "IdentityAttribute",
+                    owner: recipient.toString(),
+                    value: {
+                        "@type": "GivenName",
+                        value: "aGivenName😀"
+                    }
+                }
+            };
+
+            const result = await processor.canAccept(requestItem, acceptParams, request);
+
+            expect(result).errorValidationResult({
+                code: "error.consumption.requests.invalidAcceptParameters",
+                message: "The Attribute contains forbidden characters."
+            });
+        });
+
         test("returns an error when the given Attribute id does not exist", async function () {
             const requestItem = ProposeAttributeRequestItem.from({
                 mustBeAccepted: true,

packages/consumption/test/modules/requests/itemProcessors/readAttribute/ReadAttributeRequestItemProcessor.test.ts

@@ -539,6 +539,46 @@ describe("ReadAttributeRequestItemProcessor", function () {
             });
         });
 
+        test("returns an error when the attribute contains a forbidden character", async function () {
+            const requestItem = ReadAttributeRequestItem.from({
+                mustBeAccepted: true,
+                query: IdentityAttributeQuery.from({ valueType: "GivenName" })
+            });
+            const requestId = await ConsumptionIds.request.generate();
+            const request = LocalRequest.from({
+                id: requestId,
+                createdAt: CoreDate.utc(),
+                isOwn: false,
+                peer: sender,
+                status: LocalRequestStatus.DecisionRequired,
+                content: Request.from({
+                    id: requestId,
+                    items: [requestItem]
+                }),
+                statusLog: []
+            });
+
+            const acceptParams: AcceptReadAttributeRequestItemParametersWithNewAttributeJSON = {
+                accept: true,
+                newAttribute: {
+                    "@type": "IdentityAttribute",
+                    owner: recipient.toString(),
+                    value: {
+                        "@type": "GivenName",
+                        value: "aGivenName😀"
+                    },
+                    tags: ["aTag"]
+                }
+            };
+
+            const result = await processor.canAccept(requestItem, acceptParams, request);
+
+            expect(result).errorValidationResult({
+                code: "error.consumption.requests.invalidAcceptParameters",
+                message: "The Attribute contains forbidden characters."
+            });
+        });
+
         test("returns an error trying to share the predecessor of an already shared Attribute", async function () {
             const predecessorRepositoryAttribute = await consumptionController.attributes.createRepositoryAttribute({
                 content: TestObjectFactory.createIdentityAttribute({