# scram.test - Copyright (c) 2013 Sergei Golovan <sgolovan@nes.ru>
#
# Tests for the Tcllib SASL::SCRAM package
#
# -------------------------------------------------------------------------
# See the file "license.terms" for information on usage and redistribution
# of this file, and for a DISCLAIMER OF ALL WARRANTIES.
# -------------------------------------------------------------------------

source [file join \
    [file dirname [file dirname [file join [pwd] [info script]]]] \
	devtools testutilities.tcl]

#package require tcltest
#source [file join devtools testutilities.tcl]

testsNeedTcl     8.4
testsNeedTcltest 2

support {
    useLocal sasl.tcl  SASL
}
testing {
    useLocal scram.tcl SASL::SCRAM
}

# -------------------------------------------------------------------------
# Tests
# -------------------------------------------------------------------------

proc SASLCallback {clientblob context command args} {
    upvar #0 $context ctx
    switch -exact -- $command {
	login    { return "" }
	username { return "tester" }
	password { return "secret" }
	realm    { return "tcllib.sourceforge.net" }
	hostname { return [info host] }
	default {
	    return -code error "oops: client needs to write $command"
	}
    }
}

# -------------------------------------------------------------------------

test SASL-SCRAM-6.0 {Check basic SCRAM-SHA-1 operation} -setup {
    set result {}
} -body {
    set stx [SASL::new -type server -service xmpp -mechanism SCRAM-SHA-1 -callback {SASLCallback 0}]
    set ctx [SASL::new -type client -service xmpp -mechanism SCRAM-SHA-1 -callback {SASLCallback 0}]

    set sv ""
    while {1} {
        set res [SASL::step $ctx $sv]
        lappend result $res
        if {!$res} break
        set cl [SASL::response $ctx]
        set res [SASL::step $stx $cl]
        lappend result $res
        set sv [SASL::response $stx]
    }

    SASL::cleanup $ctx
    SASL::cleanup $stx
    set result
} -cleanup {
    unset result sv res stx ctx cl
} -result {1 1 1 0 0}

test SASL-SCRAM-6.1 {Check main SCRAM-SHA-1 algorithm} -setup {
} -body {
    # Data is taken from http://www.ietf.org/mail-archive/web/xmpp/current/msg00887.html

    foreach {p v} [SASL::SCRAM::Algo SASL::SCRAM::SHA-1:hash SASL::SCRAM::SHA-1:hmac \
	r0m30myr0m30 [base64::decode NjhkYTM0MDgtNGY0Zi00NjdmLTkxMmUtNDlmNTNmNDNkMDMz] 4096 \
	[join {n=juliet
	       r=oMsTAAwAAAAMAAAANP0TAAAAAABPU0AA
	       r=oMsTAAwAAAAMAAAANP0TAAAAAABPU0AAe124695b-69a9-4de6-9c30-b51b3808c59e
	       s=NjhkYTM0MDgtNGY0Zi00NjdmLTkxMmUtNDlmNTNmNDNkMDMz
	       i=4096
	       c=biws
	       r=oMsTAAwAAAAMAAAANP0TAAAAAABPU0AAe124695b-69a9-4de6-9c30-b51b3808c59e} ,]] break

    list [base64::encode $p] [base64::encode $v]
} -cleanup {
    unset p
    unset v
} -result {UA57tM/SvpATBkH2FXs0WDXvJYw= pNNDFVEQxuXxCoSEiW8GEZ+1RSo=}

# -------------------------------------------------------------------------

testsuiteCleanup

# Local Variables:
#  mode: tcl
#  indent-tabs-mode: nil
# End:
# vim:ts=8:sw=4:sts=4:et