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fix: JWT Token JSON Parsing Error with non-ASCII characters #100

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fix: JWT Token JSON Parsing Error with non-ASCII characters #100

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27 changes: 22 additions & 5 deletions app/models/oic_session.rb
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Original file line number Diff line number Diff line change
Expand Up @@ -157,7 +157,16 @@ def authorized?

return false
end


def decode_jwt_payload(payload_encoded)
# Add missing padding (JWT may omit padding)
remainder = payload_encoded.length % 4
if remainder > 0
payload_encoded += "=" * (4 - remainder)
end
Base64.urlsafe_decode64(payload_encoded).force_encoding("UTF-8")
end

def admin?
if client_config['admin_group'].present?
if user["member_of"].present?
Expand All @@ -174,11 +183,19 @@ def admin?
end

def user
if access_token? # keycloak way...
@user = JSON::parse(Base64::decode64(access_token.split('.')[1]))
else
@user = JSON::parse(Base64::decode64(id_token.split('.')[1]))
begin
payload_encoded = if access_token?
access_token.split('.')[1]
else
id_token.split('.')[1]
end
decoded_payload = Base64.decode64(payload_encoded).force_encoding("UTF-8")

@user = JSON.parse(decoded_payload)
rescue JSON::ParserError => e
raise e
end

return @user
end

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