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Support array for serviceEndpoint #1200

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Support array for serviceEndpoint #1200

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df2a5bd
feat(spec): add array support for serviceEndpoint
nikolockenvitz Sep 20, 2022
9075aa4
feat(ref-imp): add array support for serviceEndpoint
nikolockenvitz Sep 20, 2022
4012c5f
feat(ref-imp): copy changes in latest version to 1.0
nikolockenvitz Oct 18, 2022
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2 changes: 1 addition & 1 deletion docs/spec/patches.md
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Original file line number Diff line number Diff line change
Expand Up @@ -142,7 +142,7 @@ The `add-services` _Patch Action_ describes the addition of [Service Endpoints](
3. Each service being added ****MUST**** be represented by an entry in the `services` array, and each entry must be an object composed as follows:
1. The object ****MUST**** include an `id` property, and its value ****MUST**** be a string with a length of no more than fifty (50) Base64URL encoded characters. If the value is not of the correct type or exceeds the specified length, the entire _Patch Action_ ****MUST**** be discarded, without any of it being used to modify the DID's state.
2. The object ****MUST**** include a `type` property, and its value ****MUST**** be a string with a length of no more than thirty (30) Base64URL encoded characters. If the value is not a string or exceeds the specified length, the entire _Patch Action_ ****MUST**** be discarded, without any of it being used to modify the DID's state.
3. The object ****MUST**** include a `serviceEndpoint` property, and its value ****MUST**** be either a valid URI string (including a scheme segment: i.e. http://, git://) or a JSON object with properties that describe the Service Endpoint further. If the values do not adhere to these constraints, the entire _Patch Action_ ****MUST**** be discarded, without any of it being used to modify the DID's state.
3. The object ****MUST**** include a `serviceEndpoint` property, and its value ****MUST**** be either a valid URI string (including a scheme segment: i.e. http://, git://), a JSON object with properties that describe the Service Endpoint further, or an array of such URI strings or JSON objects. If the values do not adhere to these constraints, the entire _Patch Action_ ****MUST**** be discarded, without any of it being used to modify the DID's state.


#### `remove-services`
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34 changes: 19 additions & 15 deletions lib/core/versions/1.0/DocumentComposer.ts
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Expand Up @@ -345,22 +345,26 @@ export default class DocumentComposer {
}

// `serviceEndpoint` validations.
const serviceEndpoint = service.serviceEndpoint;
if (typeof serviceEndpoint === 'string') {
const uri = URI.parse(service.serviceEndpoint);
if (uri.error !== undefined) {
throw new SidetreeError(
ErrorCode.DocumentComposerPatchServiceEndpointStringNotValidUri,
`Service endpoint string '${serviceEndpoint}' is not a valid URI.`
);
}
} else if (typeof serviceEndpoint === 'object') {
// Allow `object` type only if it is not an array.
if (Array.isArray(serviceEndpoint)) {
throw new SidetreeError(ErrorCode.DocumentComposerPatchServiceEndpointCannotBeAnArray);
// transform URI strings and JSON objects into array so that we can run validations more easily
const serviceEndpointValueAsArray = Array.isArray(service.serviceEndpoint) ? service.serviceEndpoint : [service.serviceEndpoint];
for (const serviceEndpoint of serviceEndpointValueAsArray) {
// serviceEndpoint itself must be URI string or non-array object
if (typeof serviceEndpoint === 'string') {
const uri = URI.parse(serviceEndpoint);
if (uri.error !== undefined) {
throw new SidetreeError(
ErrorCode.DocumentComposerPatchServiceEndpointStringNotValidUri,
`Service endpoint string '${serviceEndpoint}' is not a valid URI.`
);
}
} else if (typeof serviceEndpoint === 'object') {
// Allow `object` type only if it is not an array.
if (Array.isArray(serviceEndpoint)) {
throw new SidetreeError(ErrorCode.DocumentComposerPatchServiceEndpointCannotBeAnArray);
}
} else {
throw new SidetreeError(ErrorCode.DocumentComposerPatchServiceEndpointMustBeStringOrNonArrayObject);
}
} else {
throw new SidetreeError(ErrorCode.DocumentComposerPatchServiceEndpointMustBeStringOrNonArrayObject);
}
}
}
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2 changes: 1 addition & 1 deletion lib/core/versions/1.0/models/ServiceModel.ts
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Expand Up @@ -4,5 +4,5 @@
export default interface ServiceModel {
id: string;
type: string;
serviceEndpoint: string | object;
serviceEndpoint: string | object | Array<string | object>;
}
34 changes: 19 additions & 15 deletions lib/core/versions/latest/DocumentComposer.ts
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Expand Up @@ -345,22 +345,26 @@ export default class DocumentComposer {
}

// `serviceEndpoint` validations.
const serviceEndpoint = service.serviceEndpoint;
if (typeof serviceEndpoint === 'string') {
const uri = URI.parse(service.serviceEndpoint);
if (uri.error !== undefined) {
throw new SidetreeError(
ErrorCode.DocumentComposerPatchServiceEndpointStringNotValidUri,
`Service endpoint string '${serviceEndpoint}' is not a valid URI.`
);
}
} else if (typeof serviceEndpoint === 'object') {
// Allow `object` type only if it is not an array.
if (Array.isArray(serviceEndpoint)) {
throw new SidetreeError(ErrorCode.DocumentComposerPatchServiceEndpointCannotBeAnArray);
// transform URI strings and JSON objects into array so that we can run validations more easily
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const serviceEndpointValueAsArray = Array.isArray(service.serviceEndpoint) ? service.serviceEndpoint : [service.serviceEndpoint];
for (const serviceEndpoint of serviceEndpointValueAsArray) {
// serviceEndpoint itself must be URI string or non-array object
if (typeof serviceEndpoint === 'string') {
const uri = URI.parse(serviceEndpoint);
if (uri.error !== undefined) {
throw new SidetreeError(
ErrorCode.DocumentComposerPatchServiceEndpointStringNotValidUri,
`Service endpoint string '${serviceEndpoint}' is not a valid URI.`
);
}
} else if (typeof serviceEndpoint === 'object') {
// Allow `object` type only if it is not an array.
if (Array.isArray(serviceEndpoint)) {
throw new SidetreeError(ErrorCode.DocumentComposerPatchServiceEndpointCannotBeAnArray);
}
} else {
throw new SidetreeError(ErrorCode.DocumentComposerPatchServiceEndpointMustBeStringOrNonArrayObject);
Comment on lines +350 to +366
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We will need the same change in ion-sdk. Totally get it if you don't have time to make those changes in ion-sdk, so the PR will suffice to be approved if you can file an issue in the ion-sdk repo to make the same changes! Thanks!

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Happy to implement this in ion-sdk as well. I will still create an issue as well, as I am not yet 100% sure when I will find time for the implementation. So I will open the issue, once this PR is merged, right?

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Hi @thehenrytsai, I updated ion-sdk (decentralized-identity/ion-sdk#30) as well

}
} else {
throw new SidetreeError(ErrorCode.DocumentComposerPatchServiceEndpointMustBeStringOrNonArrayObject);
}
}
}
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2 changes: 1 addition & 1 deletion lib/core/versions/latest/models/ServiceModel.ts
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Expand Up @@ -4,5 +4,5 @@
export default interface ServiceModel {
id: string;
type: string;
serviceEndpoint: string | object;
serviceEndpoint: string | object | Array<string | object>;
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Probably no need for this change, array is an object.

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That's true, I just thought it might be better to understand if it's explicit. But I can also revert this change if you like.

}
45 changes: 44 additions & 1 deletion tests/core/DocumentComposer.spec.ts
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Expand Up @@ -469,7 +469,7 @@ describe('DocumentComposer', async () => {
DocumentComposer['validateAddServicesPatch'](patch);
});

it('should throw error if `serviceEndpoint` is an array.', () => {
it('should allow an array as `serviceEndpoint`.', () => {
const patch = {
action: PatchAction.AddServices,
services: [{
Expand All @@ -478,6 +478,20 @@ describe('DocumentComposer', async () => {
serviceEndpoint: []
}]
};

// Expecting this call to succeed without errors.
DocumentComposer['validateAddServicesPatch'](patch);
});

it('should throw error if `serviceEndpoint` is an array that includes an array.', () => {
const patch = {
action: PatchAction.AddServices,
services: [{
id: 'someId',
type: 'someType',
serviceEndpoint: [[]] // array must contain URI strings or objects but not arrays
}]
};
const expectedError = new SidetreeError(ErrorCode.DocumentComposerPatchServiceEndpointCannotBeAnArray);
expect(() => { DocumentComposer['validateAddServicesPatch'](patch); }).toThrow(expectedError);
});
Expand All @@ -495,6 +509,19 @@ describe('DocumentComposer', async () => {
expect(() => { DocumentComposer['validateAddServicesPatch'](patch); }).toThrow(expectedError);
});

it('should throw error if `serviceEndpoint` has an invalid type (inside an array).', () => {
const patch = {
action: PatchAction.AddServices,
services: [{
id: 'someId',
type: 'someType',
serviceEndpoint: [123] // Invalid serviceEndpoint type.
}]
};
const expectedError = new SidetreeError(ErrorCode.DocumentComposerPatchServiceEndpointMustBeStringOrNonArrayObject);
expect(() => { DocumentComposer['validateAddServicesPatch'](patch); }).toThrow(expectedError);
});

it('Should throw if `serviceEndpoint` is not valid URI.', () => {
const patch = {
action: PatchAction.AddServices,
Expand All @@ -510,6 +537,22 @@ describe('DocumentComposer', async () => {
ErrorCode.DocumentComposerPatchServiceEndpointStringNotValidUri
);
});

it('Should throw if `serviceEndpoint` is not valid URI (inside an array).', () => {
const patch = {
action: PatchAction.AddServices,
services: [{
id: 'someId',
type: 'someType',
serviceEndpoint: ['http://'] // Invalid URI.
}]
};

JasmineSidetreeErrorValidator.expectSidetreeErrorToBeThrown(
() => DocumentComposer['validateAddServicesPatch'](patch),
ErrorCode.DocumentComposerPatchServiceEndpointStringNotValidUri
);
});
});

describe('validateDocumentPatches()', async () => {
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