Function: fixEmailDomains
Goal: Redact Sensitive Data prior to sharing.
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This function fixEmailDomains will fix email domains by ensuring only a top level domain is used.
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Example given an Email address like jack.smith@mailhost.company.com we update it to use only the top level domain jack.smith@company.com.
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Requires a metadata bucket and a source bucket, and a source bucket aliased to "src_bkt" in mode read+write.
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Will operate on all documents where doc.type === "employees".
function fixEmailDomain(doc,fieldname,emaildomain) {
/*
* doc: the mutated document
* fieldname: the name of the email field in "doc" to update
* emaildomain: the domain to use, for example @mycompany.com
*/
if (emaildomain.charAt(0) !== '@') return false;
var domary = emaildomain.substr(1).split(".");
var re = new RegExp('@.+?\.' + domary[0] + '\.' + domary[1] + '$');
if (re.test(doc[fieldname])) {
var tmp = doc[fieldname].replace(re, emaildomain);
doc[fieldname] = tmp;
return true;
}
return false;
}
function OnUpdate(doc, meta) {
if (doc.type !== "employees") return;
// normalize email addresses
if (fixEmailDomain(doc,'email',"@bigmovies.com")) {
try {
log('OnUpdate: updated field email',doc.email);
src_bkt[meta.id] = doc;
} catch (e) {
log('OnUpdate: error',e);
}
}
}
INPUT: KEY employees::1001
{
"type": "employees",
"id": 1001,
"email": "will.smith@mailhost.bigmovies.com"
}
UPDATED/OUTPUT: KEY employees::1001
{
"type": "employees",
"id": 1001,
"email": "will.smith@bigmovies.com"
}