security.py 文件源码

def make_identity_pem_string(given_key,given_cert,given_ca_cert):
    '''Given objects for client key, client cert, and CA cert,
        extract their contents in PEM format and combine them
        into a single text string.  Return that string or None.'''
    common.logging_info("Generating client identity PEM.")
    try:
        key_pem = crypto.dump_privatekey(crypto.FILETYPE_PEM,given_key)
    except crypto.Error:
        common.logging_error("Could not get PEM contents of private key.")
        return None
    try:
        cert_pem = crypto.dump_certificate(crypto.FILETYPE_PEM,given_cert)
    except crypto.Error:
        common.logging_error("Could not get PEM contents of client certificate.")
        return None
    try:
        ca_pem = crypto.dump_certificate(crypto.FILETYPE_PEM,given_ca_cert)
    except crypto.Error:
        common.logging_error("Could not get PEM contents of CA certificate.")
        return None
    combined_pem = '%(key_pem)s\n%(cert_pem)s\n%(ca_pem)s' % {'key_pem':key_pem,'cert_pem':cert_pem,'ca_pem':ca_pem}
    return combined_pem