Examples with Subject org.apache.harmony.javax.security.auth.Subject used on opensource projects

Example 1 with Subject

use of org.apache.harmony.javax.security.auth.Subject in project AsmackService by rtreffer.

the class LoginContext method loginImpl.

/**
     * The real implementation of login() method whose calls are wrapped into
     * appropriate doPrivileged calls in login().
     */
private void loginImpl() throws LoginException {
    if (subject == null) {
        subject = new Subject();
    }
    if (sharedState == null) {
        sharedState = new HashMap<String, Object>();
    }
    // PHASE 1: Calling login()-s
    Throwable firstProblem = null;
    int[] logged = new int[4];
    int[] total = new int[4];
    for (Module module : modules) {
        try {
            // if a module fails during Class.forName(), then it breaks overall 
            // attempt - see catch() below
            module.create(subject, callbackHandler, sharedState);
            if (module.module.login()) {
                ++total[module.getFlag()];
                ++logged[module.getFlag()];
                if (module.getFlag() == SUFFICIENT) {
                    break;
                }
            }
        } catch (Throwable ex) {
            if (firstProblem == null) {
                firstProblem = ex;
            }
            if (module.klass == null) {
                /*
                     * an exception occurred during class lookup - overall
                     * attempt must fail a little trick: increase the REQUIRED's
                     * number - this will look like a failed REQUIRED module
                     * later, so overall attempt will fail
                     */
                ++total[REQUIRED];
                break;
            }
            ++total[module.getFlag()];
            // something happened after the class was loaded
            if (module.getFlag() == REQUISITE) {
                // ... and no need to walk down anymore
                break;
            }
        }
    }
    // end of PHASE1, 
    // Let's decide whether we have either overall success or a total failure
    boolean fail = true;
    // if any REQ* module failed - then it's failure
    if (logged[REQUIRED] != total[REQUIRED] || logged[REQUISITE] != total[REQUISITE]) {
    // fail = true;
    } else {
        if (total[REQUIRED] == 0 && total[REQUISITE] == 0) {
            // must have at least one SUFFICIENT or OPTIONAL
            if (logged[OPTIONAL] != 0 || logged[SUFFICIENT] != 0) {
                fail = false;
            }
        //else { fail = true; }
        } else {
            fail = false;
        }
    }
    int[] commited = new int[4];
    // clear it
    total[0] = total[1] = total[2] = total[3] = 0;
    if (!fail) {
        for (Module module : modules) {
            if (module.klass != null) {
                ++total[module.getFlag()];
                try {
                    module.module.commit();
                    ++commited[module.getFlag()];
                } catch (Throwable ex) {
                    if (firstProblem == null) {
                        firstProblem = ex;
                    }
                }
            }
        }
    }
    // need to decide once again
    fail = true;
    if (commited[REQUIRED] != total[REQUIRED] || commited[REQUISITE] != total[REQUISITE]) {
    //fail = true;
    } else {
        if (total[REQUIRED] == 0 && total[REQUISITE] == 0) {
            /*
                 * neither REQUIRED nor REQUISITE was configured. must have at
                 * least one SUFFICIENT or OPTIONAL
                 */
            if (commited[OPTIONAL] != 0 || commited[SUFFICIENT] != 0) {
                fail = false;
            } else {
            //fail = true;
            }
        } else {
            fail = false;
        }
    }
    if (fail) {
        for (Module module : modules) {
            try {
                module.module.abort();
            } catch (/*LoginException*/
            Throwable ex) {
                if (firstProblem == null) {
                    firstProblem = ex;
                }
            }
        }
        if (firstProblem instanceof PrivilegedActionException && firstProblem.getCause() != null) {
            firstProblem = firstProblem.getCause();
        }
        if (firstProblem instanceof LoginException) {
            throw (LoginException) firstProblem;
        }
        //$NON-NLS-1$
        throw (LoginException) new LoginException("auth.37").initCause(firstProblem);
    }
    loggedIn = true;
}