I got certificate from customer to connect with their VPN, but it does not work with ruby code while it worked with curl command. Curl command is as follows:
curl --cacert cert.cer -d '{"acb": 123 }' -H 'Content-Type: application/json' 'https://demo.com'
In ruby, I am trying to do the following to connect the client APIs provided to us for transactions.
require 'net/http'
require 'json'
require 'uri'
full_url = "https://demo.com"
uri = URI.parse(full_url)
data = { "acb": 123 }
headers = { 'Content-Type' => "application/json" }
http = Net::HTTP.new(uri.host, uri.port)
http.use_ssl = true
raw = File.read("path_to_the_certificate")
http.cert = OpenSSL::X509::Certificate.new(raw)
request = Net::HTTP::Post.new(uri.request_uri, headers)
request.body = data.to_json
response = http.request(request)
puts response.code
puts response.body
We also tried to pass our server's certificate as follows, but that doesn't work either
http.ca_path='/etc/pki/tls/certs'
http.ca_file='/etc/pki/tls/certs/cert.cer'
http.cert = OpenSSL::X509::Certificate.new(File.read("/path/client.crt"))
http.key = OpenSSL::PKey::RSA.new(File.read("/path/client.key"))
Getting the following error while
OpenSSL::SSL::SSLError (SSL_connect returned=1 errno=0 state=error: certificate verify failed (unable to get local issuer certificate))
I think the issue with their self-signed certificate. It fails verification. However, you can manually disable it with
http.verify_mode = OpenSSL::SSL::VERIFY_NONE
verify_mode[RW]
Sets the flags for server the certification verification at beginning of SSL/TLS session.
OpenSSL::SSL::VERIFY_NONE or OpenSSL::SSL::VERIFY_PEER are acceptable.
from https://ruby-doc.org/stdlib-2.7.0/libdoc/net/http/rdoc/Net/HTTP.html
I tried to replicate it locally and it worked with this fix.
It should be that the vpn certificate is self-signed, you need to specify your own cacert, so you specify cacert file as the file used by the curl above, not the cacert file that comes with the system
add this line:
http.ca_file = "cacert filename"
Like this:
require 'net/http'
require 'json'
require 'uri'
full_url = "https://localhost/test.html"
uri = URI.parse(full_url)
data = { "acb": 123 }
headers = { 'Content-Type' => "application/json" }
http = Net::HTTP.new(uri.host, uri.port)
http.use_ssl = true
# You need to specify the cacert file used for curl above (filename: cert.cer)
http.ca_file = "/root/myca/cacert.crt"
request = Net::HTTP::Post.new(uri.request_uri, headers)
request.body = data.to_json
response = http.request(request)
puts response.code
puts response.body