Can not escape comma in policy rule

Hi, I am using ABAC via “jcasbin” and I am facing an issue related to the CSV Parsing of the policy. I am using the 1.20.0 version. My policy includes double quotes and CSV Parser is failing with the following error:

java.io.IOException: (line 1) invalid char between encapsulated token and delimiter
	at org.apache.commons.csv.Lexer.parseEncapsulatedToken(Lexer.java:281)
	at org.apache.commons.csv.Lexer.nextToken(Lexer.java:158)
	at org.apache.commons.csv.CSVParser.nextRecord(CSVParser.java:674)
	at org.apache.commons.csv.CSVParser.getRecords(CSVParser.java:628)
	at org.casbin.jcasbin.util.Util.splitCommaDelimited(Util.java:236)

Here is the policy file:

p, user, /data1, read, {"Equals":{"seller_id":"123", "corp":"CompanyA"}}

Without comma in json, it could work fine

p, user, /data1, read, {"Equals":{"seller_id":"123"}}

I have tried several solutions but they still do not work. such as

p2, user, /data1, read, {""Equals"":{""seller_id"":""123"", ""corp"":""CompanyA""}}
p2, user, /data1, read, "{""Equals"":{""seller_id"":""123"", ""corp"":""CompanyA""}}"

I also checked the issues: https://github.com/casbin/jcasbin/issues/158 & https://github.com/casbin/jcasbin/issues/184 but the result is still the same.

Could you please help with this?

[seriouszyx]

@huyphan-tiki The exception is caused by this line when loading policy data from the adapter. It uses method splitCommaDelimited to split a comma-delimited string. I have a solution which makes CSVParser support the escape character \. Then you can save your policy data as below.

p2, user, /data1, read, {"Equals":{"seller_id":"123"\, "corp":"CompanyA"}}

If there is no question, I will open a PR. But I’m not sure whether this will cause other problems or not. @hsluoyz

[hsluoyz]

@huyphan-tiki OK then.

@seriouszyx