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I'm interfacing with an SAP BI/BO server and some webservices require an input id, called "CUID" (Cluser Unique ID). for example, there's a webservice getObjectById which requires a CUID as input.

I'm trying to make my code more robust by checking if the CUID entered by a user makes sense, but I can't find a regular expression that properly describes how a CUID looks like. There is a lot of documentation for GUID, but they're not the same. Below are some examples of CUID's found in our system and it looks like they are well-formatted but I'm not sure:

AQA9CNo0cXNLt6sZp5Uc5P0
AXiYjXk_6cFEo.esdGgGy_w
AZKmxuHgAgRJiducy2fqmv0
ASSn7jfNPCFDm12sv3muJwU
AUmKm2AjdPRMl.b8rf5ILww
AaratKz7EDFIgZEeI06o8Fc
ATjdf_MjcR9Anm6DgSJzxJ8
AaYbXdzZ.8FGh5Lr1R1TRVM
Afda1n_SWgxKkvU8wl3mEBw
AaZBfzy_S8FBvQKY4h9Pj64
AcfqoHIzrSFCnhDLMH854Qc
AZkMAQWkGkZDoDrKhKH9pDU
AaVI1zfn8gRJqFUHCa64cjg

My guess would: start with capital A, then add 22 random characters in range [0-9A-Za-Z_.]. but perhaps it could be the A means something else and after awhile it would be using B...

Is anyone familiar with this type of id's and how they are formatted?

(quick side question: do I need to escape the "dot" in the square brackets like this \. to get the actual dot character?)

Sandra Rossi
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user1884155
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1 Answers1

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The definition of the different ID types and their purpose is described in the SAP KB note 1285103: What are the different types of IDs used in the BusinessObjects Enterprise repository?

However, I couldn't find any description of the format of the CUID. I wouldn't make any assumptions about it though, other than the fact that it's alphanumeric.

I did a quick query on a repository and found CUIDs consisting up to 35 characters and beginning with the letters A,B,C,F,k and M.

If you look at the repository database, more specifically the table CMS_INFOOBJECTS7, you'll notice that the column SI_CUID is defined as a VARCHAR2, 56 bytes in size (Oracle RDBMS).

Thus, a valid regex expression to match these would be [a-zA-Z0-9\._]+.

DocZerø
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