Customize generation of objectId for a custom class?

[vshy108]

Is it possible to modify the way to generate objectId for custom class instead of the auto generate 10 pseudo random 10 character string? Is it possible to have more than 10 characters objectId? thanks

[flovilmart]

What would be your use case?

[milesrichardson]

I also wanted to increase the length of objectIds. My use case is simply to make brute forcing attempts more difficult.

There is an undocumented config option objectIdSize which is set to 10 by default. The only hard coded reference I could find to objectId being 10 is in SchemaController L140: const userIdRegex = /^[a-zA-Z0-9]{10}$/;

I haven't set CLP yet but it looks like this would cause problems with setting CLP to a userID.

@flovilmart Could you comment on why the config option is undocumented, and what side effects we should expect from changing the objectId size? Maybe that userIdRegex should be changed to reference the config value instead of hard coding 10?

EDIT: I just quickly tested setting CLP in the dashboard by entering a 40 character userId (after setting objectIdSize = 40), and I did not receive the error "not a valid key for class level permissions" I would have expected.

[flovilmart]

That’s an omission, and should be fixed in a subsequent PR.

[milesrichardson]

Thanks. But could you please clarify what exactly is the omission? Is it the undocumented config, or the lack of an error when setting CLP with a 40 character userID?

[flovilmart]

I would say both, that we have a regex clearly not failing, and not documenting the option.

[addisonElliott]

I believe there is a bug with the Postgres storage adapter and objectID's greater than 10.

If you look at PostgresStorageAdapter#L28, the Pointer postgres type is set to char(10). The 10 is hardcoded for length-10 object IDs but this will need to be dependent on the objectIdSize.

[montymxb]

Hmmm, we'll want to open a PR for these issues soon and add some in-depth tests to make sure we don't have any issues with variable objectId field lengths, but in validation and in storage (postgres).

[johndoehelloworld]

I tried setting "objectIdSize", but the server crashed with the following error:

error: Error generating response. TypeError: size must be a number >= 0 at randomString (file/path/node_modules/parse-server/lib/cryptoUtils.js:39:41) at Object.newObjectId (file/path/node_modules/parse-server/lib/cryptoUtils.js:48:10) at RestWrite.setRequiredFieldsIfNeeded (file/path/node_modules/parse-server/lib/RestWrite.js:208:42) at Promise.resolve.then.then.then.then.then.then.then.then (file/path/node_modules/parse-server/lib/RestWrite.js:97:17) at process._tickDomainCallback (internal/process/next_tick.js:135:7) error: Uncaught internal server error. TypeError: size must be a number >= 0 at randomString (file/path/node_modules/parse-server/lib/cryptoUtils.js:39:41) at Object.newObjectId (file/path/node_modules/parse-server/lib/cryptoUtils.js:48:10) at RestWrite.setRequiredFieldsIfNeeded (file/path/node_modules/parse-server/lib/RestWrite.js:208:42) at Promise.resolve.then.then.then.then.then.then.then.then (file/path/node_modules/parse-server/lib/RestWrite.js:97:17) at process._tickDomainCallback (internal/process/next_tick.js:135:7) TypeError: size must be a number >= 0 at randomString (file/path/node_modules/parse-server/lib/cryptoUtils.js:39:41) at Object.newObjectId (file/path/node_modules/parse-server/lib/cryptoUtils.js:48:10) at RestWrite.setRequiredFieldsIfNeeded (file/path/node_modules/parse-server/lib/RestWrite.js:208:42) at Promise.resolve.then.then.then.then.then.then.then.then (file/path/node_modules/parse-server/lib/RestWrite.js:97:17) at process._tickDomainCallback (internal/process/next_tick.js:135:7) TypeError: size must be a number >= 0 at randomString (file/path/node_modules/parse-server/lib/cryptoUtils.js:39:41) at Object.newObjectId (file/path/node_modules/parse-server/lib/cryptoUtils.js:48:10) at RestWrite.setRequiredFieldsIfNeeded (file/path/node_modules/parse-server/lib/RestWrite.js:208:42) at Promise.resolve.then.then.then.then.then.then.then.then (file/path/node_modules/parse-server/lib/RestWrite.js:97:17) at process._tickDomainCallback (internal/process/next_tick.js:135:7) error: Error generating response. TypeError: size must be a number >= 0 at randomString (file/path/node_modules/parse-server/lib/cryptoUtils.js:39:41) at Object.newObjectId (file/path/node_modules/parse-server/lib/cryptoUtils.js:48:10) at RestWrite.setRequiredFieldsIfNeeded (file/path/node_modules/parse-server/lib/RestWrite.js:208:42) at Promise.resolve.then.then.then.then.then.then.then.then (file/path/node_modules/parse-server/lib/RestWrite.js:97:17) at process._tickDomainCallback (internal/process/next_tick.js:135:7) error: Uncaught internal server error. TypeError: size must be a number >= 0 at randomString (file/path/node_modules/parse-server/lib/cryptoUtils.js:39:41) at Object.newObjectId (file/path/node_modules/parse-server/lib/cryptoUtils.js:48:10) at RestWrite.setRequiredFieldsIfNeeded (file/path/node_modules/parse-server/lib/RestWrite.js:208:42) at Promise.resolve.then.then.then.then.then.then.then.then (file/path/node_modules/parse-server/lib/RestWrite.js:97:17) at process._tickDomainCallback (internal/process/next_tick.js:135:7) TypeError: size must be a number >= 0 at randomString (file/path/node_modules/parse-server/lib/cryptoUtils.js:39:41) at Object.newObjectId (file/path/node_modules/parse-server/lib/cryptoUtils.js:48:10) at RestWrite.setRequiredFieldsIfNeeded (file/path/node_modules/parse-server/lib/RestWrite.js:208:42) at Promise.resolve.then.then.then.then.then.then.then.then (file/path/node_modules/parse-server/lib/RestWrite.js:97:17) at process._tickDomainCallback (internal/process/next_tick.js:135:7) TypeError: size must be a number >= 0 at randomString (file/path/node_modules/parse-server/lib/cryptoUtils.js:39:41) at Object.newObjectId (file/path/node_modules/parse-server/lib/cryptoUtils.js:48:10) at RestWrite.setRequiredFieldsIfNeeded (file/path/node_modules/parse-server/lib/RestWrite.js:208:42) at Promise.resolve.then.then.then.then.then.then.then.then (file/path/node_modules/parse-server/lib/RestWrite.js:97:17) at process._tickDomainCallback (internal/process/next_tick.js:135:7) error: Error generating response. TypeError: size must be a number >= 0 at randomString (file/path/node_modules/parse-server/lib/cryptoUtils.js:39:41) at Object.newObjectId (file/path/node_modules/parse-server/lib/cryptoUtils.js:48:10) at RestWrite.setRequiredFieldsIfNeeded (file/path/node_modules/parse-server/lib/RestWrite.js:208:42) at Promise.resolve.then.then.then.then.then.then.then.then (file/path/node_modules/parse-server/lib/RestWrite.js:97:17) at process._tickDomainCallback (internal/process/next_tick.js:135:7) error: Uncaught internal server error. TypeError: size must be a number >= 0 at randomString (file/path/node_modules/parse-server/lib/cryptoUtils.js:39:41) at Object.newObjectId (file/path/node_modules/parse-server/lib/cryptoUtils.js:48:10) at RestWrite.setRequiredFieldsIfNeeded (file/path/node_modules/parse-server/lib/RestWrite.js:208:42) at Promise.resolve.then.then.then.then.then.then.then.then (file/path/node_modules/parse-server/lib/RestWrite.js:97:17) at process._tickDomainCallback (internal/process/next_tick.js:135:7) TypeError: size must be a number >= 0 at randomString (file/path/node_modules/parse-server/lib/cryptoUtils.js:39:41) at Object.newObjectId (file/path/node_modules/parse-server/lib/cryptoUtils.js:48:10) at RestWrite.setRequiredFieldsIfNeeded (file/path/node_modules/parse-server/lib/RestWrite.js:208:42) at Promise.resolve.then.then.then.then.then.then.then.then (file/path/node_modules/parse-server/lib/RestWrite.js:97:17) at process._tickDomainCallback (internal/process/next_tick.js:135:7) TypeError: size must be a number >= 0 at randomString (file/path/node_modules/parse-server/lib/cryptoUtils.js:39:41) at Object.newObjectId (file/path/node_modules/parse-server/lib/cryptoUtils.js:48:10) at RestWrite.setRequiredFieldsIfNeeded (file/path/node_modules/parse-server/lib/RestWrite.js:208:42) at Promise.resolve.then.then.then.then.then.then.then.then (file/path/node_modules/parse-server/lib/RestWrite.js:97:17) at process._tickDomainCallback (internal/process/next_tick.js:135:7) error: Error generating response. TypeError: size must be a number >= 0 at randomString (file/path/node_modules/parse-server/lib/cryptoUtils.js:39:41) at Object.newObjectId (file/path/node_modules/parse-server/lib/cryptoUtils.js:48:10) at RestWrite.setRequiredFieldsIfNeeded (file/path/node_modules/parse-server/lib/RestWrite.js:208:42) at Promise.resolve.then.then.then.then.then.then.then.then (file/path/node_modules/parse-server/lib/RestWrite.js:97:17) at process._tickDomainCallback (internal/process/next_tick.js:135:7) error: Uncaught internal server error. TypeError: size must be a number >= 0 at randomString (file/path/node_modules/parse-server/lib/cryptoUtils.js:39:41) at Object.newObjectId (file/path/node_modules/parse-server/lib/cryptoUtils.js:48:10) at RestWrite.setRequiredFieldsIfNeeded (file/path/node_modules/parse-server/lib/RestWrite.js:208:42) at Promise.resolve.then.then.then.then.then.then.then.then (file/path/node_modules/parse-server/lib/RestWrite.js:97:17) at process._tickDomainCallback (internal/process/next_tick.js:135:7) TypeError: size must be a number >= 0 at randomString (file/path/node_modules/parse-server/lib/cryptoUtils.js:39:41) at Object.newObjectId (file/path/node_modules/parse-server/lib/cryptoUtils.js:48:10) at RestWrite.setRequiredFieldsIfNeeded (file/path/node_modules/parse-server/lib/RestWrite.js:208:42) at Promise.resolve.then.then.then.then.then.then.then.then (file/path/node_modules/parse-server/lib/RestWrite.js:97:17) at process._tickDomainCallback (internal/process/next_tick.js:135:7) TypeError: size must be a number >= 0 at randomString (file/path/node_modules/parse-server/lib/cryptoUtils.js:39:41) at Object.newObjectId (file/path/node_modules/parse-server/lib/cryptoUtils.js:48:10) at RestWrite.setRequiredFieldsIfNeeded (file/path/node_modules/parse-server/lib/RestWrite.js:208:42) at Promise.resolve.then.then.then.then.then.then.then.then (file/path/node_modules/parse-server/lib/RestWrite.js:97:17) at process._tickDomainCallback (internal/process/next_tick.js:135:7) error: Error generating response. TypeError: size must be a number >= 0 at randomString (file/path/node_modules/parse-server/lib/cryptoUtils.js:39:41) at Object.newObjectId (file/path/node_modules/parse-server/lib/cryptoUtils.js:48:10) at RestWrite.setRequiredFieldsIfNeeded (file/path/node_modules/parse-server/lib/RestWrite.js:208:42) at Promise.resolve.then.then.then.then.then.then.then.then (file/path/node_modules/parse-server/lib/RestWrite.js:97:17) at process._tickDomainCallback (internal/process/next_tick.js:135:7) error: Uncaught internal server error. TypeError: size must be a number >= 0 at randomString (file/path/node_modules/parse-server/lib/cryptoUtils.js:39:41) at Object.newObjectId (file/path/node_modules/parse-server/lib/cryptoUtils.js:48:10) at RestWrite.setRequiredFieldsIfNeeded (file/path/node_modules/parse-server/lib/RestWrite.js:208:42) at Promise.resolve.then.then.then.then.then.then.then.then (file/path/node_modules/parse-server/lib/RestWrite.js:97:17) at process._tickDomainCallback (internal/process/next_tick.js:135:7) TypeError: size must be a number >= 0 at randomString (file/path/node_modules/parse-server/lib/cryptoUtils.js:39:41) at Object.newObjectId (file/path/node_modules/parse-server/lib/cryptoUtils.js:48:10) at RestWrite.setRequiredFieldsIfNeeded (file/path/node_modules/parse-server/lib/RestWrite.js:208:42) at Promise.resolve.then.then.then.then.then.then.then.then (file/path/node_modules/parse-server/lib/RestWrite.js:97:17) at process._tickDomainCallback (internal/process/next_tick.js:135:7) Parse.Cloud.createGroup(): Error error: Failed running cloud function createGroup for user x45Zab1wtk with: Input: {} Error: {"code":141,"message":{"code":1}} error: Error generating response. ParseError { code: 141, message: ParseError { code: 1, message: undefined } } code=141, code=1, message=undefined error: ParseError { code: 1, message: undefined } code=141, code=1, message=undefined TypeError: size must be a number >= 0 at randomString (file/path/node_modules/parse-server/lib/cryptoUtils.js:39:41) at Object.newObjectId (file/path/node_modules/parse-server/lib/cryptoUtils.js:48:10) at RestWrite.setRequiredFieldsIfNeeded (file/path/node_modules/parse-server/lib/RestWrite.js:208:42) at Promise.resolve.then.then.then.then.then.then.then.then (file/path/node_modules/parse-server/lib/RestWrite.js:97:17) at process._tickDomainCallback (internal/process/next_tick.js:135:7)

Works fine when I remove the objectIdSize config – thoughts?

[flovilmart]

It should be a number; what / how did you set this value?

[johndoehelloworld]

As an environment variable just as I add other configuration parameters while starting the server. Set it at 34.

[flovilmart]

This is why it’s not properly mapped as a number probably.

[flovilmart]

@johndoehelloworld what version of parse-server are your running&

[johndoehelloworld]

You were right @flovilmart – typecasting worked. Thanks for your prompt response!