core\diag\Telepath::magic()

Complexity

Conditions	18
Paths	200

Size

Total Lines	80
Code Lines	36

Duplication

Lines	0
Ratio	0 %

Importance

Changes

0

<?php
    public function magic() {

        // simple things first: do we know anything about the realm, either
        // because it's a CAT participant or because it's in the eduroam DB?
        // if so, we can exclude the INFRA_NONEXISTENTREALM cause
        $this->additionalFindings[AbstractTest::INFRA_NONEXISTENTREALM]['DATABASE_STATUS'] = ["ID1" => $this->catProfile, "ID2" => $this->dbIdP];
        if ($this->catProfile != \core\Federation::UNKNOWN_IDP || $this->dbIdP != \core\Federation::UNKNOWN_IDP) {
            unset($this->possibleFailureReasons[AbstractTest::INFRA_NONEXISTENTREALM]);
        }
        // do we operate on a non-ambiguous, fully configured CAT profile? Then
        // we run the more thorough check, otherwise the shallow one.
        $this->determineTestSuiteParameters();
        // let's do the least amount of testing needed:
        // - The CAT reachability test already covers ELTRs, IdP NRO level and the IdP itself.
        //   if the realm maps to a CAT IdP, we can run the more thorough tests; otherwise just
        //   the normal shallow ones
        // these are the normal "realm check" tests covering ETLR, LINK_NRO_IDP, NRO, IDP_RADIUS
        $this->CATInternalTests();
        // - if the test does NOT go through, we need to find out which of the three is guilty
        // - then, the international "via ETLR" check can be used to find out if the IdP alone
        //   is guilty. If that one fails, the direct monitoring of servers and ETLRs themselves
        //   closes the loop.
        // let's see if the ETLRs are up
        if (array_key_exists(AbstractTest::INFRA_ETLR, $this->possibleFailureReasons)) {
            $this->checkEtlrStatus();
        }

        // then let's check the IdP's FLR, if we know the IdP federation at all
        if ($this->idPFederation !== NULL) {
            if (array_key_exists(AbstractTest::INFRA_NRO_IDP, $this->possibleFailureReasons)) {
                // first the direct connectivity to the server
                $this->checkFlrServerStatus(AbstractTest::INFRA_NRO_IDP);
            }
            // now let's theck the link
            if (array_key_exists(AbstractTest::INFRA_LINK_ETLR_NRO_IDP, $this->possibleFailureReasons)) {
                $this->checkFedEtlrUplink(AbstractTest::INFRA_NRO_IDP);
            }
        }
        // now, if we know the country the user is currently in, let's see 
        // if the NRO SP-side is up
        if ($this->visitedFlr !== NULL) {
            $this->checkFlrServerStatus(AbstractTest::INFRA_NRO_SP);
            // and again its uplink to the ETLR
            $this->checkFedEtlrUplink(AbstractTest::INFRA_NRO_SP);
        }
        // the last thing we can do (but it's a bit redundant): check the country-to-country link
        // it's only needed if all three and their links are up, but we want to exclude funny routing blacklists 
        // which occur only in the *combination* of source and dest
        // if there is an issue at that point, blame the SP: once a request
        // would have reached the ETLRs, things would be all good (assuming
        // perfection on the ETLRs here!). So the SP has a wrong config.
        if ($this->idPFederation !== NULL &&
                $this->visitedFlr !== NULL &&
                !array_key_exists(AbstractTest::INFRA_ETLR, $this->possibleFailureReasons) &&
                !array_key_exists(AbstractTest::INFRA_LINK_ETLR_NRO_IDP, $this->possibleFailureReasons) &&
                !array_key_exists(AbstractTest::INFRA_NRO_IDP, $this->possibleFailureReasons) &&
                !array_key_exists(AbstractTest::INFRA_LINK_ETLR_NRO_SP, $this->possibleFailureReasons) &&
                !array_key_exists(AbstractTest::INFRA_NRO_SP, $this->possibleFailureReasons)
        ) {
            $countryToCountryStatus = $this->checkNROFlow();
            $this->additionalFindings[AbstractTest::INFRA_NRO_SP][] = $countryToCountryStatus;
            $this->additionalFindings[AbstractTest::INFRA_ETLR][] = $countryToCountryStatus;
            $this->additionalFindings[AbstractTest::INFRA_NRO_IDP][] = $countryToCountryStatus;
            switch ($countryToCountryStatus["STATUS"]) {
                case AbstractTest::STATUS_GOOD:
                    // all routes work
                    break;
                case AbstractTest::STATUS_PARTIAL:
                // at least one, or even all have a routing problem
                case AbstractTest::STATUS_DOWN:
                    // that's rather telling.
                    $this->possibleFailureReasons[AbstractTest::INFRA_NRO_SP] = 0.95;
            }
        }

        $this->normaliseResultSet();

        $_SESSION["SUSPECTS"] = $this->possibleFailureReasons;
        $_SESSION["EVIDENCE"] = $this->additionalFindings;
        return ["SUSPECTS" => $this->possibleFailureReasons, "EVIDENCE" => $this->additionalFindings];
    }