Imports github.com/crewjam/saml github.com/crewjam/saml/logger github.com/mattermost/xml-roundtrip-validator golang.org/x/oauth2 Standard library imports bufio bytes crypto/rand crypto/tls crypto/x509 encoding/base64 encoding/json encoding/xml errors flag fmt io io/ioutil log net net/http net/url os path/filepath regexp strconv strings time