SPL_Token program contains lots of features, but I want to add more additional checks as per customer requirement. So I want to create custom spl_token program by extending original spl_token code
e.g. Lets say, I want to limit maximum token that can be transferred to any account in single transaction.
Also I want program_id of my custom program, to be used in assigned_program_id(as shown in solana explorer) of any account which is created.
Any help is appreciated.
If you want your custom program id to be used, you simply need to fork the SPL token code to add your changes.
The code for the base token program exists at https://github.com/solana-labs/solana-program-library/tree/master/token/program, and if you're making small changes, it'll be easiest to change and deploy that.
If the changes are more involved, you can add a new extension to the token-2022 program, found at https://github.com/solana-labs/solana-program-library/tree/master/token/program-2022
To add a new extension, you need to add the state and instructions required for the extension, and whether it exists on a mint or account. Here is a sample pull request to add an extension allowing for mints to be closed: https://github.com/solana-labs/solana-program-library/pull/2754
Note that wallets and dapps will not be compatible with another program id, and it will take some time before they can accept more than one token program id.
Related
Trying to detect the first install event from branch.io link (succesfully implement link creating and sharing). I am using Unity branch sdk. The feature i try to create:
user_1 creates and share link to user_2.
When user_2 opens the link and install app i need to reward both of them (with inner in-game coins)
So i succesfully implement the 1. but I cant understand how to detect is user_2 installs the app or simply open it. All data that comes from branch.io UniversalObject callback doesn't contain information that i need.
Which the correct way to detect the install from code?
Alex from Branch here.
The callback parameter you need is +is_first_session. This is one of the parameters returned when the Branch session is initiated each time your app opens (you can find all all these parameters here). If this returns true, then that device has just installed the app (instead of opening it).
However, note that when these parameters are returned, it's impossible to immediately determine if the user is new (what you want), the device is new (not what you want, since the reward could be given twice if the user has installed on multiple devices), or neither (the user deleted the app and reinstalled on the same device). You would probably want to hold off on actually awarding the referral points until after the user has logged in with some sort of unique ID.
Branch also has a built-in feature for tracking referral points that might be useful. That lets you configure all the rules using the dashboard UI instead of needing to do it programmatically inside your app.
How do I run/call/kickoff an external program (custom code) whenever certain attributes or objects are added or modified in OpenDJ’s database?
Here is my real world need. (Feel free to change my thought direction entirely).
Whenever a new email address gets created or changed in the OpenDJ database I want to initiate some java code that does some email verification/validation (send the “click here” link with a token to prove the user owns the email they just signed up with).
I know, I could use OpenIDM/AM to accomplish this but to take this a step further I need to validate other information and other credentials (custom) which users supply that are not supported by OpenIDM/AM suites.
Initiating/calling custom code upon ADD or MODIFY of specific objects and attributes is what I want and would like to know how to accomplish this. Preferably without having to scrape logs.
Please Help.
Chad
OpenDJ has a plugin interface where you can plug Java calls on Add or Modify. A sample of this kind of plugin is the attribute uniqueness which verifies that some attributes have a unique value in the directory.
The plugin interface javadoc can be found here : http://docs.forgerock.org/en/opendj/2.6.0/javadoc/org/opends/server/api/plugin/DirectoryServerPlugin.html
My new user creation website is almost done, I have all the vbscript I need to create the users on both the iSeries and AD, I have a check to make sure the user doesn't exist in AD and notify the creator if it does. All I have left is to find a way to check for an iSeries user before the process begins and notify if it already exists.
Does any one know of a rmtcmd I can use to perform this check? I've looked everywhere I can without calling IBM, which will be my next step.
User profiles are object type *USRPRF in library QSYS. You can use the CHKOBJ command to check if it exists. There is more information in the documentation about Checking for the existence of an object.
CHKOBJ OBJ(profile) OBJTYPE(*USRPRF) AUT(*OBJEXIST)
Recently, I have been working on a CredentialProvider in order to unlock automatically (the trigger can be any event, so let’s say the end of a timer) a Windows Vista (or more recent version) user session.
For that I read some useful articles on the subject, the change between GINA and this new architecture. http://msdn.microsoft.com/en-us/magazine/cc163489.aspx.
I think, like everyone in the process of creating a custom CredentialProvider, I didn’t start from scratch but from the sample code provided by Microsoft. And then I tried to change the behaviour (things like logging) in the different functions.
So in the end I can use the custom CredentialProvider, enter the SetUsageScenario methods but still I cannot reach the Set or GetSerialization method. From what I’ve understood in the technical documentation on CredentialProvider (still provided by Microsoft) theses two methods should be called automatically. Is there something I missed ?
Also, my original idea was to get an authentication package using Kerberos in order to perform an implicit user authentication. I got this idea by seeking information on other SO or MSDN threads like
Is this approach the good one ?
Thank you very much for your time answering my questions. Any clarifications are welcomed, even if they don’t directly resolve my problems :-)
First of all - you need to set autologon flag to true in your implementation of the ICredentialProviderCredential::SetSelected(BOOL *pbAutoLogon) and ICredentialProvider::GetCredentialCount methods.
Next, you need to call ICredentialProviderEvents::CredentialsChanged when your timer is hit.
LogonUI will recreate your credentials, and because autologon is set to true it will call your GetSerialization() method.
SetSerialization and GetSerialization functions are called from your provider by LogonUI. After user enters username/password and presses ENTER button, LogonUI calls GetSerialization function and provides a pointer, as one of the four parameters, that will point in future to CREDENTIAL_PROVIDER_CREDENTIAL_SERIALIZATION structure created and filled by you, and then this structure will be sent from LogonUI to Winlogon to perform authentication. I don't know how to make LogonUI to call GetSerialization from your credential provider code and as far as I know you can't call GetSerialization by your own because where will you pass your filled CREDENTIAL_PROVIDER_CREDENTIAL_SERIALIZATION structure if no one requested it, but only LogonUI can path it to Winlogon?
There is a document called "Credential Provider Technical Reference", there you can read some details about credential providers. In the Shell samples folder there is a strange folder called "Autologon", maybe it will help you! Good Luck!
I've searched around online but can't find what I'm after. Basically, during an install, we fire off a separate executable that basically brute forces a few folders to be read/write enabled for the user group "EVERYONE".
Now, the person that wrote this never took into consideration system language. I had a call with a customer in France that kept failing installation because "EVERYONE" isn't what we would expect.
I'm after an API call to Windows that would return a security group name which would be "safe" to use in a localized environment. Essentially I'm looking to safely edit this code so instead of hardcoding in "EVERYONE", we call a function instead.
The fundamental mistake here is not so much the use of EVERYONE, but rather that the code is using names at all. Instead of using names you should use the well-known SIDs. In your case you need S-1-1-0.