#!/usr/bin/env python
# -*- coding: utf-8 -*-

import zlib
import base64
import gzip

from saml2 import make_instance
from saml2 import s_utils as utils
from saml2 import saml
from saml2 import samlp
from saml2 import md

from saml2.s_utils import do_attribute_statement

from saml2.sigver import make_temp

from saml2.saml import Attribute, NAME_FORMAT_URI, AttributeValue

from py.test import raises

SUCCESS_STATUS = """<?xml version=\'1.0\' encoding=\'UTF-8\'?>
<ns0:Status xmlns:ns0="urn:oasis:names:tc:SAML:2.0:protocol"><ns0:StatusCode Value="urn:oasis:names:tc:SAML:2.0:status:Success" /></ns0:Status>"""

ERROR_STATUS = """<?xml version='1.0' encoding='UTF-8'?>
<ns0:Status xmlns:ns0="urn:oasis:names:tc:SAML:2.0:protocol"><ns0:StatusCode Value="urn:oasis:names:tc:SAML:2.0:status:Responder"><ns0:StatusCode Value="urn:oasis:names:tc:SAML:2.0:status:UnknownPrincipal" /></ns0:StatusCode><ns0:StatusMessage>Error resolving principal</ns0:StatusMessage></ns0:Status>"""


def _eq(l1,l2):
    return set(l1) == set(l2)

def _oeq(l1,l2):
    if len(l1) != len(l2):
        print "Different number of items"
        return False
    for item in l1:
        if item not in l2:
            print "%s not in l2" % (item,)
            for ite in l2:
                print "\t%s" % (ite,)
            return False
    return True
    
def test_inflate_then_deflate():
    str = """Selma Lagerlöf (1858-1940) was born in Östra Emterwik, Värmland, 
    Sweden. She was brought up on Mårbacka, the family estate, which she did 
    not leave until 1881, when she went to a teachers' college at Stockholm"""
    
    interm = utils.deflate_and_base64_encode(str)
    bis = utils.decode_base64_and_inflate(interm)    
    assert bis == str
    
def test_status_success():
    status = utils.success_status_factory()
    status_text = "%s" % status
    assert status_text == SUCCESS_STATUS
    assert status.status_code.value == samlp.STATUS_SUCCESS
    
def test_error_status():
    status = utils.status_message_factory("Error resolving principal",
                                        samlp.STATUS_UNKNOWN_PRINCIPAL,
                                        samlp.STATUS_RESPONDER)
        
    status_text = "%s" % status
    print status_text
    assert status_text == ERROR_STATUS

def test_status_from_exception():
    e = utils.UnknownPrincipal("Error resolving principal")
    stat = utils.error_status_factory(e)
    status_text = "%s" % stat
    print status_text
    assert status_text == ERROR_STATUS
    
def test_attribute_sn():
    attr = utils.do_attributes({"surName":("Jeter", "")})
    assert len(attr) == 1
    print attr
    inst = attr[0]
    assert inst.name == "surName"
    assert len(inst.attribute_value) == 1
    av = inst.attribute_value[0]
    assert av.text == "Jeter"

def test_attribute_age():
    attr = utils.do_attributes({"age":(37, "")})
    
    assert len(attr) == 1
    inst = attr[0]
    print inst
    assert inst.name == "age"
    assert len(inst.attribute_value) == 1
    av = inst.attribute_value[0]
    assert av.text == "37"
    assert av.get_type() == "xs:integer"

def test_attribute_onoff():
    attr = utils.do_attributes({"onoff":(False, "")})
    
    assert len(attr) == 1
    inst = attr[0]
    print inst
    assert inst.name == "onoff"
    assert len(inst.attribute_value) == 1
    av = inst.attribute_value[0]
    assert av.text == "false"
    assert av.get_type() == "xs:boolean"

def test_attribute_base64():
    b64sl = base64.b64encode("Selma Lagerlöf")
    attr = utils.do_attributes({"name":(b64sl, "xs:base64Binary")})
    
    assert len(attr) == 1
    inst = attr[0]
    print inst
    assert inst.name == "name"
    assert len(inst.attribute_value) == 1
    av = inst.attribute_value[0]
    assert av.get_type() == "xs:base64Binary"
    assert av.text.strip() == b64sl
    
def test_attribute_statement():
    statement = do_attribute_statement({"surName":("Jeter", ""),
                                        "givenName":("Derek", "")})
    print statement
    assert statement.keyswv() == ["attribute"]
    assert len(statement.attribute) == 2
    attr0 = statement.attribute[0]
    assert _eq(attr0.keyswv(), ["name","attribute_value"])
    assert len(attr0.attribute_value) == 1
    attr1 = statement.attribute[1]
    assert _eq(attr1.keyswv(), ["name","attribute_value"])
    assert len(attr1.attribute_value) == 1
    if attr0.name == "givenName":
        assert attr0.attribute_value[0].text == "Derek"
        assert attr1.name == "surName"
        assert attr1.attribute_value[0].text == "Jeter"
    else:
        assert attr0.name == "surName"
        assert attr0.attribute_value[0].text == "Jeter"
        assert attr1.name == "givenName"
        assert attr1.attribute_value[0].text == "Derek"

def test_audience():
    aud_restr = utils.factory(saml.AudienceRestriction,
                    audience=utils.factory(saml.Audience,text="urn:foo:bar"))
            
    assert aud_restr.keyswv() == ["audience"]
    assert aud_restr.audience.text == "urn:foo:bar"
    
def test_conditions():
    conditions = utils.factory( saml.Conditions,
                    not_before="2009-10-30T07:58:10.852Z",
                    not_on_or_after="2009-10-30T08:03:10.852Z", 
                    audience_restriction=[utils.factory(saml.AudienceRestriction,
                                        audience=utils.factory(saml.Audience,
                                                        text="urn:foo:bar"))])
                    
    assert _eq(conditions.keyswv(), ["not_before", "not_on_or_after",
                                "audience_restriction"])
    assert conditions.not_before == "2009-10-30T07:58:10.852Z" 
    assert conditions.not_on_or_after == "2009-10-30T08:03:10.852Z"
    assert conditions.audience_restriction[0].audience.text == "urn:foo:bar"
    
def test_value_1():
    #FriendlyName="givenName" Name="urn:oid:2.5.4.42" 
    # NameFormat="urn:oasis:names:tc:SAML:2.0:attrname-format:uri"
    attribute = utils.factory(saml.Attribute, name="urn:oid:2.5.4.42",
                                name_format=NAME_FORMAT_URI)
    assert _eq(attribute.keyswv(),["name","name_format"])
    assert attribute.name == "urn:oid:2.5.4.42"
    assert attribute.name_format == saml.NAME_FORMAT_URI

def test_value_2():
    attribute = utils.factory(saml.Attribute, name="urn:oid:2.5.4.42",
                            name_format=NAME_FORMAT_URI, 
                            friendly_name="givenName")
    assert _eq(attribute.keyswv(),["name","name_format","friendly_name"])
    assert attribute.name == "urn:oid:2.5.4.42"
    assert attribute.name_format == NAME_FORMAT_URI
    assert attribute.friendly_name == "givenName"

def test_value_3():
    attribute = utils.factory(saml.Attribute, 
                                attribute_value=[utils.factory(
                                            saml.AttributeValue, text="Derek")],
                                name="urn:oid:2.5.4.42",
                                name_format=NAME_FORMAT_URI,
                                friendly_name="givenName")

    assert _eq(attribute.keyswv(),["name", "name_format",
                                    "friendly_name", "attribute_value"])
    assert attribute.name == "urn:oid:2.5.4.42"
    assert attribute.name_format == NAME_FORMAT_URI
    assert attribute.friendly_name == "givenName"
    assert len(attribute.attribute_value) == 1
    assert attribute.attribute_value[0].text == "Derek"

def test_value_4():
    attribute = utils.factory(saml.Attribute, 
                            attribute_value=[utils.factory(
                                        saml.AttributeValue, text="Derek")],
                            friendly_name="givenName")

    assert _eq(attribute.keyswv(),["friendly_name", "attribute_value"])
    assert attribute.friendly_name == "givenName"
    assert len(attribute.attribute_value) == 1
    assert attribute.attribute_value[0].text == "Derek"

def test_do_attribute_statement_0():
    statement = do_attribute_statement({"vo_attr":("foobar", "")})

    assert statement.keyswv() == ["attribute"]
    assert len(statement.attribute) == 1
    attr0 = statement.attribute[0]
    assert _eq(attr0.keyswv(), ["name","attribute_value"])
    assert attr0.name == "vo_attr"
    assert len(attr0.attribute_value) == 1
    assert attr0.attribute_value[0].text == "foobar"

def test_do_attribute_statement():
    statement = do_attribute_statement({"surName":("Jeter", ""),
                                        "givenName":(["Derek",
                                                    "Sanderson"], "")})

    assert statement.keyswv() == ["attribute"]
    assert len(statement.attribute) == 2
    attr0 = statement.attribute[0]
    assert _eq(attr0.keyswv(), ["name","attribute_value"])
    attr1 = statement.attribute[1]
    assert _eq(attr1.keyswv(), ["name","attribute_value"])
    if attr0.name == "givenName":
        assert len(attr0.attribute_value) == 2
        assert _eq([av.text for av in attr0.attribute_value],
                    ["Derek","Sanderson"])
        assert attr1.name == "surName"
        assert attr1.attribute_value[0].text == "Jeter"
        assert len(attr1.attribute_value) == 1
    else:
        assert attr0.name == "surName"
        assert attr0.attribute_value[0].text == "Jeter"
        assert len(attr0.attribute_value) == 1
        assert attr1.name == "givenName"
        assert len(attr1.attribute_value) == 2
        assert _eq([av.text for av in attr1.attribute_value],
                    ["Derek","Sanderson"])
    
def test_do_attribute_statement_multi():
    statement = do_attribute_statement(
                {( "urn:oid:1.3.6.1.4.1.5923.1.1.1.7",
                    "urn:oasis:names:tc:SAML:2.0:attrname-format:uri",
                    "eduPersonEntitlement"):("Jeter", "")})

    assert statement.keyswv() == ["attribute"]
    assert len(statement.attribute)
    assert _eq(statement.attribute[0].keyswv(),
                ["name","name_format","friendly_name","attribute_value"])
    attribute = statement.attribute[0]
    assert attribute.name == "urn:oid:1.3.6.1.4.1.5923.1.1.1.7"
    assert attribute.name_format == (
                "urn:oasis:names:tc:SAML:2.0:attrname-format:uri")
    assert attribute.friendly_name == "eduPersonEntitlement"

def test_subject():
    subject = utils.factory(saml.Subject, text="_aaa", 
                            name_id=saml.NameID(
                                        text=saml.NAMEID_FORMAT_TRANSIENT))

    assert _eq(subject.keyswv(),["text", "name_id"])
    assert subject.text == "_aaa"
    assert subject.name_id.text == saml.NAMEID_FORMAT_TRANSIENT

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

def test_parse_attribute_map():
    (forward, backward) = utils.parse_attribute_map(["attribute.map"])
    
    assert _eq(forward.keys(), backward.values())
    assert _eq(forward.values(), backward.keys())
    print forward.keys()
    assert _oeq(forward.keys(), [
            ('urn:oid:1.3.6.1.4.1.5923.1.1.1.7', NAME_FORMAT_URI), 
            ('urn:oid:0.9.2342.19200300.100.1.1', NAME_FORMAT_URI), 
            ('urn:oid:1.3.6.1.4.1.5923.1.1.1.1', NAME_FORMAT_URI), 
            ('urn:oid:2.5.4.42', NAME_FORMAT_URI),
            ('urn:oid:2.5.4.4', NAME_FORMAT_URI),
            ('urn:oid:0.9.2342.19200300.100.1.3', NAME_FORMAT_URI), 
            ('urn:oid:2.5.4.12', NAME_FORMAT_URI)])
    assert _eq(forward.keys(), [
            ('urn:oid:1.3.6.1.4.1.5923.1.1.1.7', NAME_FORMAT_URI), 
            ('urn:oid:0.9.2342.19200300.100.1.1', NAME_FORMAT_URI), 
            ('urn:oid:1.3.6.1.4.1.5923.1.1.1.1', NAME_FORMAT_URI), 
            ('urn:oid:2.5.4.42', NAME_FORMAT_URI),
            ('urn:oid:2.5.4.4', NAME_FORMAT_URI),
            ('urn:oid:0.9.2342.19200300.100.1.3', NAME_FORMAT_URI), 
            ('urn:oid:2.5.4.12', NAME_FORMAT_URI)])
    assert _eq(backward.keys(),["surName","givenName","title","uid","mail",
                                    "eduPersonAffiliation",
                                    "eduPersonEntitlement"])
                                    

def test_identity_attribute_0():
    (forward, backward) = utils.parse_attribute_map(["attribute.map"])
    a = Attribute(name="urn:oid:2.5.4.4", name_format=NAME_FORMAT_URI,
                    friendly_name="surName")
    
    assert utils.identity_attribute("name",a,forward) == "urn:oid:2.5.4.4"
    assert utils.identity_attribute("friendly",a,forward) == "surName"
                                    
def test_identity_attribute_1():
    (forward, backward) = utils.parse_attribute_map(["attribute.map"])
    a = Attribute(name="urn:oid:2.5.4.4", name_format=NAME_FORMAT_URI)
    
    assert utils.identity_attribute("name",a,forward) == "urn:oid:2.5.4.4"
    assert utils.identity_attribute("friendly",a,forward) == "surName"

def test_identity_attribute_2():
    (forward, backward) = utils.parse_attribute_map(["attribute.map"])
    a = Attribute(name="urn:oid:2.5.4.5", name_format=NAME_FORMAT_URI)
    
    assert utils.identity_attribute("name",a,forward) == "urn:oid:2.5.4.5"
    # if there would be a map it would be serialNumber
    assert utils.identity_attribute("friendly",a,forward) == "urn:oid:2.5.4.5"

def test_identity_attribute_3():
    a = Attribute(name="urn:oid:2.5.4.5", name_format=NAME_FORMAT_URI)
    
    assert utils.identity_attribute("name",a) == "urn:oid:2.5.4.5"
    # if there would be a map it would be serialNumber
    assert utils.identity_attribute("friendly",a) == "urn:oid:2.5.4.5"

def test_identity_attribute_4():
    a = Attribute(name="urn:oid:2.5.4.5", name_format=NAME_FORMAT_URI,
                    friendly_name="serialNumber")
    
    assert utils.identity_attribute("name",a) == "urn:oid:2.5.4.5"
    # if there would be a map it would be serialNumber
    assert utils.identity_attribute("friendly",a) == "serialNumber"
        
def _givenName(a):
    assert a["name"] == "urn:oid:2.5.4.42"
    assert a["friendly_name"] == "givenName"
    assert len(a["attribute_value"]) == 1
    assert a["attribute_value"] == [{"text":"Derek"}]

def _surName(a):
    assert a["name"] == "urn:oid:2.5.4.4"
    assert a["friendly_name"] == "surName"
    assert len(a["attribute_value"]) == 1
    assert a["attribute_value"] == [{"text":"Jeter"}]
        
def test_nameformat_email():
    assert utils.valid_email("foo@example.com")
    assert utils.valid_email("a@b.com")
    assert utils.valid_email("a@b.se")
    assert utils.valid_email("john@doe@johndoe.com") == False
    
def test_attribute():
    a = utils.factory(saml.Attribute,
                friendly_name="eduPersonScopedAffiliation",
                name="urn:oid:1.3.6.1.4.1.5923.1.1.1.9",
                name_format="urn:oasis:names:tc:SAML:2.0:attrname-format:uri")
        
    assert _eq(a.keyswv(), ["friendly_name","name", "name_format"])

    a = utils.factory(saml.Attribute,
        friendly_name="eduPersonScopedAffiliation",    
        name="urn:oid:1.3.6.1.4.1.5923.1.1.1.9",
        name_format="urn:oasis:names:tc:SAML:2.0:attrname-format:uri",
        attribute_value=[saml.AttributeValue(text="member@example.com")])
        
    assert _eq(a.keyswv(), ["friendly_name","name", "name_format",
                            "attribute_value"])
                            
def test_attribute_statement():
    statement = utils.factory( saml.Statement,
                attribute=[
                    utils.factory(saml.Attribute,
                                    attribute_value=[
                                        utils.factory(
                                            saml.AttributeValue,text="Derek")],
                                    friendly_name="givenName"),
                    utils.factory(saml.Attribute,
                                    attribute_value=[
                                        utils.factory(
                                            saml.AttributeValue,text="Jeter")], 
                                    friendly_name="surName"),
                ])
    assert statement.keyswv() == ["attribute"]
    assert len(statement.attribute) == 2
    
def test_subject_confirmation_data():
    s = utils.factory( saml.SubjectConfirmation,
                in_response_to="_12345678", 
                not_before="2010-02-11T07:30:00Z",
                not_on_or_after="2010-02-11T07:35:00Z",
                recipient="http://example.com/sp/",
                address="192.168.0.10")
                
    assert _eq(s.keyswv(),["in_response_to","not_before","not_on_or_after",
                        "recipient", "address"])
    
def test_subject_confirmation():
    s = utils.factory( saml.SubjectConfirmation,
                    method="urn:oasis:names:tc:SAML:2.0:profiles:SSO:browser",
                    base_id="1234",
                    name_id="abcd",
                    subject_confirmation_data=utils.factory(
                            saml.SubjectConfirmationData,
                            in_response_to="_1234567890",
                            recipient="http://example.com/sp/"))

    assert _eq(s.keyswv(),
                ["method","base_id","name_id","subject_confirmation_data"])
    assert s.method == "urn:oasis:names:tc:SAML:2.0:profiles:SSO:browser"
    

def test_authn_context_class_ref():
    a = utils.factory( saml.AuthnContextClassRef,
                text="urn:oasis:names:tc:SAML:2.0:ac:classes:unspecified")
    assert a.keyswv() == ["text"]
    assert a.text == "urn:oasis:names:tc:SAML:2.0:ac:classes:unspecified"
            
def test_authn_context():
    accr = utils.factory( saml.AuthnContext,
            text="urn:oasis:names:tc:SAML:2.0:ac:classes:unspecified")
    a = utils.factory(saml.AuthnContext, authn_context_class_ref=accr)

    assert a.keyswv() == ["authn_context_class_ref"]
    
def test_authn_statement():
    accr = utils.factory( saml.AuthnContextClassRef,
            text="urn:oasis:names:tc:SAML:2.0:ac:classes:unspecified")
    ac = utils.factory( saml.AuthnContext,
            authn_context_class_ref=accr)
    ast = utils.factory( saml.AuthnStatement,
                        authn_instant="2010-03-10T12:33:00Z",
                        session_index="_12345",
                        session_not_on_or_after="2010-03-11T12:00:00Z",
                        authn_context=ac
                        )
    assert _eq(ast.keyswv(),["authn_instant","session_index",
                            "session_not_on_or_after",
                            "authn_context"])
                            
def test_signature():
    arr = ["foobar", "1234567890"]
    csum = utils.signature("abcdef", arr)
    arr.append(csum)
    
    assert utils.verify_signature("abcdef", arr)