private boolean processProxyAuthChallenge(final HttpMethod method)
throws MalformedChallengeException, AuthenticationException {
AuthState authstate = method.getProxyAuthState();
Map proxyChallenges =
AuthChallengeParser.parseChallenges(method.getResponseHeaders(PROXY_AUTH_CHALLENGE));
if (proxyChallenges.isEmpty()) {
LOG.debug("Proxy authentication challenge(s) not found");
return false;
}
AuthScheme authscheme = null;
try {
authscheme = this.authProcessor.processChallenge(authstate, proxyChallenges);
} catch (AuthChallengeException e) {
if (LOG.isWarnEnabled()) {
LOG.warn(e.getMessage());
}
}
if (authscheme == null) {
return false;
}
AuthScope authscope =
new AuthScope(
conn.getProxyHost(),
conn.getProxyPort(),
authscheme.getRealm(),
authscheme.getSchemeName());
if (LOG.isDebugEnabled()) {
LOG.debug("Proxy authentication scope: " + authscope);
}
if (authstate.isAuthAttempted() && authscheme.isComplete()) {
// Already tried and failed
Credentials credentials =
promptForProxyCredentials(authscheme, method.getParams(), authscope);
if (credentials == null) {
if (LOG.isInfoEnabled()) {
LOG.info("Failure authenticating with " + authscope);
}
return false;
} else {
return true;
}
} else {
authstate.setAuthAttempted(true);
Credentials credentials = this.state.getProxyCredentials(authscope);
if (credentials == null) {
credentials = promptForProxyCredentials(authscheme, method.getParams(), authscope);
}
if (credentials == null) {
if (LOG.isInfoEnabled()) {
LOG.info("No credentials available for " + authscope);
}
return false;
} else {
return true;
}
}
}
private void authenticateProxy(final HttpMethod method) throws AuthenticationException {
// Clean up existing authentication headers
if (!cleanAuthHeaders(method, PROXY_AUTH_RESP)) {
// User defined authentication header(s) present
return;
}
AuthState authstate = method.getProxyAuthState();
AuthScheme authscheme = authstate.getAuthScheme();
if (authscheme == null) {
return;
}
if (authstate.isAuthRequested() || !authscheme.isConnectionBased()) {
AuthScope authscope =
new AuthScope(
conn.getProxyHost(),
conn.getProxyPort(),
authscheme.getRealm(),
authscheme.getSchemeName());
if (LOG.isDebugEnabled()) {
LOG.debug("Authenticating with " + authscope);
}
Credentials credentials = this.state.getProxyCredentials(authscope);
if (credentials != null) {
String authstring = authscheme.authenticate(credentials, method);
if (authstring != null) {
method.addRequestHeader(new Header(PROXY_AUTH_RESP, authstring, true));
}
} else {
if (LOG.isWarnEnabled()) {
LOG.warn("Required proxy credentials not available for " + authscope);
if (method.getProxyAuthState().isPreemptive()) {
LOG.warn(
"Preemptive authentication requested but no default "
+ "proxy credentials available");
}
}
}
}
}