Get bundle id from p12/pem file

Question

Is it possible to get application's bundle id from p12/pem file for APNS?

I have a system where user can upload his push certificate (p12 or pem) and would be great to show him an info about bundle id so user will be able to check what he uploaded

Answer 1

I'm not sure whether it's 100% helpful but you can use command line tool from openssl library in the following manner

openssl pkcs12 -info -in mycert.p12 -passin pass:MyCertPassPhrase

this will produce the output you can parse

MAC Iteration 1
MAC verified OK
PKCS7 Encrypted data: pbeWithSHA1And40BitRC2-CBC, Iteration 2048
Certificate bag
Bag Attributes
    friendlyName: Apple Production IOS Push Services: com.mybundle.domain
    localKeyID: F2 FZ 5D 00 44 73 F1 64 B8 FF EF 37 82 BC 13 F4 81 6A B2 14 
subject=/UID=com.mybundle.domain/CN=Apple Production IOS Push Services: com.mybundle.domain/OU=Q7QX7A5JZ7/C=RU
issuer=/C=US/O=Apple Inc./OU=Apple Worldwide Developer Relations/CN=Apple Worldwide Developer Relations Certification Authority
-----BEGIN CERTIFICATE-----
MIIFeTCCBGGgAwIBAgIILW8Tn/Z054IwDQYJKoZIhvcNAQEFBQAwgZYxCzAJBgNV

where com.mybundle.domain is what you're looking for.