[thirdparty/squid.git] / src / auth / ntlm / UserRequest.cc

#include "squid.h"
#include "auth/ntlm/auth_ntlm.h"
#include "auth/ntlm/UserRequest.h"
#include "auth/State.h"
#include "cbdata.h"
#include "client_side.h"
#include "globals.h"
#include "HttpRequest.h"
#include "SquidTime.h"

Auth::Ntlm::UserRequest::UserRequest()
{
    waiting=0;
    client_blob=0;
    server_blob=0;
    authserver=NULL;
    request=NULL;
}

Auth::Ntlm::UserRequest::~UserRequest()
{
    assert(RefCountCount()==0);
    safe_free(server_blob);
    safe_free(client_blob);

    releaseAuthServer();

    if (request) {
        HTTPMSGUNLOCK(request);
        request = NULL;
    }
}

const char *
Auth::Ntlm::UserRequest::connLastHeader()
{
    return NULL;
}

int
Auth::Ntlm::UserRequest::authenticated() const
{
    if (user() != NULL && user()->credentials() == Auth::Ok) {
        debugs(29, 9, HERE << "user authenticated.");
        return 1;
    }

    debugs(29, 9, HERE << "user not fully authenticated.");
    return 0;
}

Auth::Direction
Auth::Ntlm::UserRequest::module_direction()
{
    /* null auth_user is checked for by Auth::UserRequest::direction() */

    if (waiting || client_blob)
        return Auth::CRED_LOOKUP; /* need helper response to continue */

    if (user()->auth_type != Auth::AUTH_NTLM)
        return Auth::CRED_ERROR;

    switch (user()->credentials()) {

    case Auth::Handshake:
        assert(server_blob);
        return Auth::CRED_CHALLENGE;

    case Auth::Ok:
        return Auth::CRED_VALID;

    case Auth::Failed:
        return Auth::CRED_ERROR; // XXX: really? not VALID or CHALLENGE?

    default:
        debugs(29, DBG_IMPORTANT, "WARNING: NTLM Authentication in unexpected state: " << user()->credentials());
        return Auth::CRED_ERROR;
    }
}

void
Auth::Ntlm::UserRequest::module_start(AUTHCB * handler, void *data)
{
    static char buf[MAX_AUTHTOKEN_LEN];

    assert(data);
    assert(handler);

    if (static_cast<Auth::Ntlm::Config*>(Auth::Config::Find("ntlm"))->authenticateProgram == NULL) {
        debugs(29, DBG_CRITICAL, "ERROR: NTLM Start: no NTLM program configured.");
        handler(data);
        return;
    }

    debugs(29, 8, HERE << "credentials state is '" << user()->credentials() << "'");

    if (user()->credentials() == Auth::Pending) {
        snprintf(buf, sizeof(buf), "YR %s\n", client_blob); //CHECKME: can ever client_blob be 0 here?
    } else {
        snprintf(buf, sizeof(buf), "KK %s\n", client_blob);
    }

    waiting = 1;

    safe_free(client_blob);
    helperStatefulSubmit(ntlmauthenticators, buf, Auth::Ntlm::UserRequest::HandleReply,
                         new Auth::StateData(this, handler, data), authserver);
}

/**
 * Atomic action: properly release the NTLM auth helpers which may have been reserved
 * for this request connections use.
 */
void
Auth::Ntlm::UserRequest::releaseAuthServer()
{
    if (authserver) {
        debugs(29, 6, HERE << "releasing NTLM auth server '" << authserver << "'");
        helperStatefulReleaseServer(authserver);
        authserver = NULL;
    } else
        debugs(29, 6, HERE << "No NTLM auth server to release.");
}

void
Auth::Ntlm::UserRequest::onConnectionClose(ConnStateData *conn)
{
    assert(conn != NULL);

    debugs(29, 8, HERE << "closing connection '" << conn << "' (this is '" << this << "')");

    if (conn->auth_user_request == NULL) {
        debugs(29, 8, HERE << "no auth_user_request");
        return;
    }

    releaseAuthServer();

    /* unlock the connection based lock */
    debugs(29, 9, HERE << "Unlocking auth_user from the connection '" << conn << "'.");

    conn->auth_user_request = NULL;
}

void
Auth::Ntlm::UserRequest::authenticate(HttpRequest * aRequest, ConnStateData * conn, http_hdr_type type)
{
    assert(this);

    /* Check that we are in the client side, where we can generate
     * auth challenges */

    if (conn == NULL || !cbdataReferenceValid(conn)) {
        user()->credentials(Auth::Failed);
        debugs(29, DBG_IMPORTANT, "WARNING: NTLM Authentication attempt to perform authentication without a connection!");
        return;
    }

    if (waiting) {
        debugs(29, DBG_IMPORTANT, "WARNING: NTLM Authentication waiting for helper reply!");
        return;
    }

    if (server_blob) {
        debugs(29, 2, HERE << "need to challenge client '" << server_blob << "'!");
        return;
    }

    /* get header */
    const char *proxy_auth = aRequest->header.getStr(type);

    /* locate second word */
    const char *blob = proxy_auth;

    /* if proxy_auth is actually NULL, we'd better not manipulate it. */
    if (blob) {
        while (xisspace(*blob) && *blob)
            ++blob;

        while (!xisspace(*blob) && *blob)
            ++blob;

        while (xisspace(*blob) && *blob)
            ++blob;
    }

    switch (user()->credentials()) {

    case Auth::Unchecked:
        /* we've received a ntlm request. pass to a helper */
        debugs(29, 9, HERE << "auth state ntlm none. Received blob: '" << proxy_auth << "'");
        user()->credentials(Auth::Pending);
        safe_free(client_blob);
        client_blob=xstrdup(blob);
        assert(conn->auth_user_request == NULL);
        conn->auth_user_request = this;
        request = aRequest;
        HTTPMSGLOCK(request);
        break;

    case Auth::Pending:
        debugs(29, DBG_IMPORTANT, HERE << "need to ask helper");
        break;

    case Auth::Handshake:
        /* we should have received a blob from the client. Hand it off to
         * some helper */
        safe_free(client_blob);
        client_blob = xstrdup(blob);
        if (request)
            HTTPMSGUNLOCK(request);
        request = aRequest;
        HTTPMSGLOCK(request);
        break;

    case Auth::Ok:
        fatal("Auth::Ntlm::UserRequest::authenticate: unexpect auth state DONE! Report a bug to the squid developers.\n");
        break;

    case Auth::Failed:
        /* we've failed somewhere in authentication */
        debugs(29, 9, HERE << "auth state ntlm failed. " << proxy_auth);
        break;
    }
}

void
Auth::Ntlm::UserRequest::HandleReply(void *data, void *lastserver, char *reply)
{
    Auth::StateData *r = static_cast<Auth::StateData *>(data);
    char *blob;

    debugs(29, 8, HERE << "helper: '" << lastserver << "' sent us '" << (reply ? reply : "<NULL>") << "'");

    if (!cbdataReferenceValid(r->data)) {
        debugs(29, DBG_IMPORTANT, "ERROR: NTLM Authentication invalid callback data. helper '" << lastserver << "'.");
        delete r;
        return;
    }

    if (!reply) {
        debugs(29, DBG_IMPORTANT, "ERROR: NTLM Authentication Helper '" << lastserver << "' crashed!.");
        reply = (char *)"BH Internal error";
    }

    Auth::UserRequest::Pointer auth_user_request = r->auth_user_request;
    assert(auth_user_request != NULL);

    Auth::Ntlm::UserRequest *lm_request = dynamic_cast<Auth::Ntlm::UserRequest *>(auth_user_request.getRaw());
    assert(lm_request != NULL);
    assert(lm_request->waiting);

    lm_request->waiting = 0;
    safe_free(lm_request->client_blob);

    assert(auth_user_request->user() != NULL);
    assert(auth_user_request->user()->auth_type == Auth::AUTH_NTLM);

    if (lm_request->authserver == NULL)
        lm_request->authserver = static_cast<helper_stateful_server*>(lastserver);
    else
        assert(lm_request->authserver == lastserver);

    /* seperate out the useful data */
    blob = strchr(reply, ' ');
    if (blob)
        ++blob;

    if (strncasecmp(reply, "TT ", 3) == 0) {
        /* we have been given a blob to send to the client */
        safe_free(lm_request->server_blob);
        lm_request->request->flags.mustKeepalive = 1;
        if (lm_request->request->flags.proxyKeepalive) {
            lm_request->server_blob = xstrdup(blob);
            auth_user_request->user()->credentials(Auth::Handshake);
            auth_user_request->denyMessage("Authentication in progress");
            debugs(29, 4, HERE << "Need to challenge the client with a server blob '" << blob << "'");
        } else {
            auth_user_request->user()->credentials(Auth::Failed);
            auth_user_request->denyMessage("NTLM authentication requires a persistent connection");
        }
    } else if (strncasecmp(reply, "AF ", 3) == 0) {
        /* we're finished, release the helper */
        auth_user_request->user()->username(blob);
        auth_user_request->denyMessage("Login successful");
        safe_free(lm_request->server_blob);
        lm_request->releaseAuthServer();

        debugs(29, 4, HERE << "Successfully validated user via NTLM. Username '" << blob << "'");
        /* connection is authenticated */
        debugs(29, 4, HERE << "authenticated user " << auth_user_request->user()->username());
        /* see if this is an existing user with a different proxy_auth
         * string */
        AuthUserHashPointer *usernamehash = static_cast<AuthUserHashPointer *>(hash_lookup(proxy_auth_username_cache, auth_user_request->user()->username()));
        Auth::User::Pointer local_auth_user = lm_request->user();
        while (usernamehash && (usernamehash->user()->auth_type != Auth::AUTH_NTLM ||
                                strcmp(usernamehash->user()->username(), auth_user_request->user()->username()) != 0))
            usernamehash = static_cast<AuthUserHashPointer *>(usernamehash->next);
        if (usernamehash) {
            /* we can't seamlessly recheck the username due to the
             * challenge-response nature of the protocol.
             * Just free the temporary auth_user after merging as
             * much of it new state into the existing one as possible */
            usernamehash->user()->absorb(local_auth_user);
            /* from here on we are working with the original cached credentials. */
            local_auth_user = usernamehash->user();
            auth_user_request->user(local_auth_user);
        } else {
            /* store user in hash's */
            local_auth_user->addToNameCache();
        }
        /* set these to now because this is either a new login from an
         * existing user or a new user */
        local_auth_user->expiretime = current_time.tv_sec;
        auth_user_request->user()->credentials(Auth::Ok);
        debugs(29, 4, HERE << "Successfully validated user via NTLM. Username '" << blob << "'");

    } else if (strncasecmp(reply, "NA ", 3) == 0) {
        /* authentication failure (wrong password, etc.) */
        auth_user_request->denyMessage(blob);
        auth_user_request->user()->credentials(Auth::Failed);
        safe_free(lm_request->server_blob);
        lm_request->releaseAuthServer();
        debugs(29, 4, HERE << "Failed validating user via NTLM. Error returned '" << blob << "'");
    } else if (strncasecmp(reply, "BH ", 3) == 0) {
        /* TODO kick off a refresh process. This can occur after a YR or after
         * a KK. If after a YR release the helper and resubmit the request via
         * Authenticate NTLM start.
         * If after a KK deny the user's request w/ 407 and mark the helper as
         * Needing YR. */
        auth_user_request->denyMessage(blob);
        auth_user_request->user()->credentials(Auth::Failed);
        safe_free(lm_request->server_blob);
        lm_request->releaseAuthServer();
        debugs(29, DBG_IMPORTANT, "ERROR: NTLM Authentication validating user. Error returned '" << reply << "'");
    } else {
        /* protocol error */
        fatalf("authenticateNTLMHandleReply: *** Unsupported helper response ***, '%s'\n", reply);
    }

    if (lm_request->request) {
        HTTPMSGUNLOCK(lm_request->request);
        lm_request->request = NULL;
    }
    r->handler(r->data);
    delete r;
}
Commit	Line	Data
f7f3304a	1	#include "squid.h"
928f3421	2	#include "auth/ntlm/auth_ntlm.h"
616cfc4c	3	#include "auth/ntlm/UserRequest.h"
d232141d	4	#include "auth/State.h"
928f3421	5	#include "cbdata.h"
582c2af2 FC	6	#include "client_side.h"
582c2af2 FC	7	#include "globals.h"
928f3421 AJ	8	#include "HttpRequest.h"
	9	#include "SquidTime.h"
	10
c7baff40	11	Auth::Ntlm::UserRequest::UserRequest()
928f3421 AJ	12	{
	13	waiting=0;
	14	client_blob=0;
	15	server_blob=0;
	16	authserver=NULL;
7afc3bf2	17	request=NULL;
928f3421 AJ	18	}
928f3421 AJ	19
c7baff40	20	Auth::Ntlm::UserRequest::~UserRequest()
928f3421	21	{
ea0695f2	22	assert(RefCountCount()==0);
928f3421 AJ	23	safe_free(server_blob);
	24	safe_free(client_blob);
	25
	26	releaseAuthServer();
	27
	28	if (request) {
	29	HTTPMSGUNLOCK(request);
	30	request = NULL;
	31	}
	32	}
	33
	34	const char *
c7baff40	35	Auth::Ntlm::UserRequest::connLastHeader()
928f3421 AJ	36	{
	37	return NULL;
	38	}
	39
7afc3bf2	40	int
c7baff40	41	Auth::Ntlm::UserRequest::authenticated() const
7afc3bf2 AJ	42	{
	43	if (user() != NULL && user()->credentials() == Auth::Ok) {
	44	debugs(29, 9, HERE << "user authenticated.");
	45	return 1;
	46	}
	47
	48	debugs(29, 9, HERE << "user not fully authenticated.");
	49	return 0;
	50	}
	51
51a3dd58	52	Auth::Direction
c7baff40	53	Auth::Ntlm::UserRequest::module_direction()
928f3421	54	{
c7baff40	55	/* null auth_user is checked for by Auth::UserRequest::direction() */
928f3421 AJ	56
928f3421 AJ	57	if (waiting \|\| client_blob)
51a3dd58	58	return Auth::CRED_LOOKUP; /* need helper response to continue */
928f3421	59
616cfc4c	60	if (user()->auth_type != Auth::AUTH_NTLM)
51a3dd58	61	return Auth::CRED_ERROR;
928f3421	62
d232141d	63	switch (user()->credentials()) {
928f3421	64
d87154ee	65	case Auth::Handshake:
928f3421	66	assert(server_blob);
7afc3bf2	67	return Auth::CRED_CHALLENGE;
928f3421	68
d87154ee	69	case Auth::Ok:
51a3dd58	70	return Auth::CRED_VALID;
928f3421	71
d87154ee	72	case Auth::Failed:
7afc3bf2	73	return Auth::CRED_ERROR; // XXX: really? not VALID or CHALLENGE?
928f3421	74
d232141d AJ	75	default:
d232141d AJ	76	debugs(29, DBG_IMPORTANT, "WARNING: NTLM Authentication in unexpected state: " << user()->credentials());
51a3dd58	77	return Auth::CRED_ERROR;
d232141d	78	}
928f3421 AJ	79	}
928f3421 AJ	80
928f3421	81	void
4c535e87	82	Auth::Ntlm::UserRequest::module_start(AUTHCB * handler, void *data)
928f3421	83	{
7afc3bf2	84	static char buf[MAX_AUTHTOKEN_LEN];
928f3421 AJ	85
	86	assert(data);
	87	assert(handler);
928f3421	88
372fccd6	89	if (static_cast<Auth::Ntlm::Config*>(Auth::Config::Find("ntlm"))->authenticateProgram == NULL) {
d232141d	90	debugs(29, DBG_CRITICAL, "ERROR: NTLM Start: no NTLM program configured.");
4c535e87	91	handler(data);
ec5858ff	92	return;
928f3421 AJ	93	}
928f3421 AJ	94
7afc3bf2 AJ	95	debugs(29, 8, HERE << "credentials state is '" << user()->credentials() << "'");
7afc3bf2 AJ	96
d87154ee	97	if (user()->credentials() == Auth::Pending) {
7afc3bf2	98	snprintf(buf, sizeof(buf), "YR %s\n", client_blob); //CHECKME: can ever client_blob be 0 here?
928f3421	99	} else {
7afc3bf2	100	snprintf(buf, sizeof(buf), "KK %s\n", client_blob);
928f3421 AJ	101	}
	102
	103	waiting = 1;
	104
	105	safe_free(client_blob);
c7baff40	106	helperStatefulSubmit(ntlmauthenticators, buf, Auth::Ntlm::UserRequest::HandleReply,
1c756645	107	new Auth::StateData(this, handler, data), authserver);
928f3421 AJ	108	}
	109
	110	/**
	111	* Atomic action: properly release the NTLM auth helpers which may have been reserved
	112	* for this request connections use.
	113	*/
	114	void
c7baff40	115	Auth::Ntlm::UserRequest::releaseAuthServer()
928f3421 AJ	116	{
	117	if (authserver) {
	118	debugs(29, 6, HERE << "releasing NTLM auth server '" << authserver << "'");
	119	helperStatefulReleaseServer(authserver);
	120	authserver = NULL;
	121	} else
	122	debugs(29, 6, HERE << "No NTLM auth server to release.");
	123	}
	124
	125	void
c7baff40	126	Auth::Ntlm::UserRequest::onConnectionClose(ConnStateData *conn)
928f3421 AJ	127	{
	128	assert(conn != NULL);
	129
c7baff40	130	debugs(29, 8, HERE << "closing connection '" << conn << "' (this is '" << this << "')");
928f3421 AJ	131
928f3421 AJ	132	if (conn->auth_user_request == NULL) {
c7baff40	133	debugs(29, 8, HERE << "no auth_user_request");
928f3421 AJ	134	return;
	135	}
	136
928f3421 AJ	137	releaseAuthServer();
	138
	139	/* unlock the connection based lock */
7afc3bf2	140	debugs(29, 9, HERE << "Unlocking auth_user from the connection '" << conn << "'.");
928f3421 AJ	141
	142	conn->auth_user_request = NULL;
	143	}
	144
928f3421	145	void
c7baff40	146	Auth::Ntlm::UserRequest::authenticate(HttpRequest * aRequest, ConnStateData * conn, http_hdr_type type)
928f3421	147	{
56a49fda	148	assert(this);
928f3421 AJ	149
	150	/* Check that we are in the client side, where we can generate
	151	* auth challenges */
	152
	153	if (conn == NULL \|\| !cbdataReferenceValid(conn)) {
d87154ee	154	user()->credentials(Auth::Failed);
7afc3bf2	155	debugs(29, DBG_IMPORTANT, "WARNING: NTLM Authentication attempt to perform authentication without a connection!");
928f3421 AJ	156	return;
	157	}
	158
	159	if (waiting) {
7afc3bf2	160	debugs(29, DBG_IMPORTANT, "WARNING: NTLM Authentication waiting for helper reply!");
928f3421 AJ	161	return;
	162	}
	163
	164	if (server_blob) {
7afc3bf2	165	debugs(29, 2, HERE << "need to challenge client '" << server_blob << "'!");
928f3421 AJ	166	return;
	167	}
	168
	169	/* get header */
7afc3bf2	170	const char *proxy_auth = aRequest->header.getStr(type);
928f3421 AJ	171
928f3421 AJ	172	/* locate second word */
7afc3bf2	173	const char *blob = proxy_auth;
928f3421 AJ	174
	175	/* if proxy_auth is actually NULL, we'd better not manipulate it. */
	176	if (blob) {
	177	while (xisspace(blob) && blob)
742a021b	178	++blob;
928f3421 AJ	179
928f3421 AJ	180	while (!xisspace(blob) && blob)
742a021b	181	++blob;
928f3421 AJ	182
928f3421 AJ	183	while (xisspace(blob) && blob)
742a021b	184	++blob;
928f3421 AJ	185	}
928f3421 AJ	186
d232141d	187	switch (user()->credentials()) {
928f3421	188
d87154ee	189	case Auth::Unchecked:
928f3421	190	/* we've received a ntlm request. pass to a helper */
7afc3bf2	191	debugs(29, 9, HERE << "auth state ntlm none. Received blob: '" << proxy_auth << "'");
d87154ee	192	user()->credentials(Auth::Pending);
928f3421 AJ	193	safe_free(client_blob);
928f3421 AJ	194	client_blob=xstrdup(blob);
928f3421 AJ	195	assert(conn->auth_user_request == NULL);
	196	conn->auth_user_request = this;
	197	request = aRequest;
	198	HTTPMSGLOCK(request);
	199	break;
	200
d87154ee	201	case Auth::Pending:
e0236918	202	debugs(29, DBG_IMPORTANT, HERE << "need to ask helper");
928f3421 AJ	203	break;
928f3421 AJ	204
d87154ee	205	case Auth::Handshake:
928f3421 AJ	206	/* we should have received a blob from the client. Hand it off to
	207	* some helper */
	208	safe_free(client_blob);
7afc3bf2	209	client_blob = xstrdup(blob);
928f3421 AJ	210	if (request)
	211	HTTPMSGUNLOCK(request);
	212	request = aRequest;
	213	HTTPMSGLOCK(request);
	214	break;
	215
d87154ee	216	case Auth::Ok:
c7baff40	217	fatal("Auth::Ntlm::UserRequest::authenticate: unexpect auth state DONE! Report a bug to the squid developers.\n");
928f3421 AJ	218	break;
928f3421 AJ	219
d87154ee	220	case Auth::Failed:
928f3421	221	/* we've failed somewhere in authentication */
7afc3bf2	222	debugs(29, 9, HERE << "auth state ntlm failed. " << proxy_auth);
928f3421 AJ	223	break;
	224	}
	225	}
	226
	227	void
c7baff40	228	Auth::Ntlm::UserRequest::HandleReply(void data, void lastserver, char *reply)
928f3421	229	{
1c756645	230	Auth::StateData r = static_cast<Auth::StateData >(data);
928f3421 AJ	231	char *blob;
928f3421 AJ	232
7afc3bf2	233	debugs(29, 8, HERE << "helper: '" << lastserver << "' sent us '" << (reply ? reply : "<NULL>") << "'");
928f3421	234
1c756645	235	if (!cbdataReferenceValid(r->data)) {
7afc3bf2	236	debugs(29, DBG_IMPORTANT, "ERROR: NTLM Authentication invalid callback data. helper '" << lastserver << "'.");
1c756645	237	delete r;
928f3421 AJ	238	return;
	239	}
	240
	241	if (!reply) {
7afc3bf2	242	debugs(29, DBG_IMPORTANT, "ERROR: NTLM Authentication Helper '" << lastserver << "' crashed!.");
928f3421 AJ	243	reply = (char *)"BH Internal error";
	244	}
	245
c7baff40	246	Auth::UserRequest::Pointer auth_user_request = r->auth_user_request;
928f3421 AJ	247	assert(auth_user_request != NULL);
928f3421 AJ	248
c7baff40	249	Auth::Ntlm::UserRequest lm_request = dynamic_cast<Auth::Ntlm::UserRequest >(auth_user_request.getRaw());
7afc3bf2 AJ	250	assert(lm_request != NULL);
7afc3bf2 AJ	251	assert(lm_request->waiting);
56a49fda	252
7afc3bf2 AJ	253	lm_request->waiting = 0;
7afc3bf2 AJ	254	safe_free(lm_request->client_blob);
928f3421	255
7afc3bf2 AJ	256	assert(auth_user_request->user() != NULL);
	257	assert(auth_user_request->user()->auth_type == Auth::AUTH_NTLM);
	258
	259	if (lm_request->authserver == NULL)
	260	lm_request->authserver = static_cast<helper_stateful_server*>(lastserver);
928f3421	261	else
7afc3bf2	262	assert(lm_request->authserver == lastserver);
928f3421 AJ	263
	264	/* seperate out the useful data */
	265	blob = strchr(reply, ' ');
928f3421	266	if (blob)
742a021b	267	++blob;
928f3421 AJ	268
	269	if (strncasecmp(reply, "TT ", 3) == 0) {
	270	/* we have been given a blob to send to the client */
7afc3bf2	271	safe_free(lm_request->server_blob);
450fe1cb FC	272	lm_request->request->flags.mustKeepalive = 1;
450fe1cb FC	273	if (lm_request->request->flags.proxyKeepalive) {
7afc3bf2 AJ	274	lm_request->server_blob = xstrdup(blob);
7afc3bf2 AJ	275	auth_user_request->user()->credentials(Auth::Handshake);
928f3421	276	auth_user_request->denyMessage("Authentication in progress");
7afc3bf2	277	debugs(29, 4, HERE << "Need to challenge the client with a server blob '" << blob << "'");
928f3421	278	} else {
7afc3bf2	279	auth_user_request->user()->credentials(Auth::Failed);
928f3421 AJ	280	auth_user_request->denyMessage("NTLM authentication requires a persistent connection");
	281	}
	282	} else if (strncasecmp(reply, "AF ", 3) == 0) {
	283	/* we're finished, release the helper */
56a49fda	284	auth_user_request->user()->username(blob);
928f3421	285	auth_user_request->denyMessage("Login successful");
7afc3bf2 AJ	286	safe_free(lm_request->server_blob);
7afc3bf2 AJ	287	lm_request->releaseAuthServer();
928f3421	288
7afc3bf2	289	debugs(29, 4, HERE << "Successfully validated user via NTLM. Username '" << blob << "'");
928f3421	290	/* connection is authenticated */
7afc3bf2	291	debugs(29, 4, HERE << "authenticated user " << auth_user_request->user()->username());
928f3421 AJ	292	/* see if this is an existing user with a different proxy_auth
928f3421 AJ	293	* string */
7afc3bf2 AJ	294	AuthUserHashPointer usernamehash = static_cast<AuthUserHashPointer >(hash_lookup(proxy_auth_username_cache, auth_user_request->user()->username()));
7afc3bf2 AJ	295	Auth::User::Pointer local_auth_user = lm_request->user();
616cfc4c	296	while (usernamehash && (usernamehash->user()->auth_type != Auth::AUTH_NTLM \|\|
c6cf8dee	297	strcmp(usernamehash->user()->username(), auth_user_request->user()->username()) != 0))
928f3421 AJ	298	usernamehash = static_cast<AuthUserHashPointer *>(usernamehash->next);
	299	if (usernamehash) {
	300	/* we can't seamlessly recheck the username due to the
	301	* challenge-response nature of the protocol.
58e94342 AJ	302	* Just free the temporary auth_user after merging as
58e94342 AJ	303	* much of it new state into the existing one as possible */
928f3421	304	usernamehash->user()->absorb(local_auth_user);
7afc3bf2	305	/* from here on we are working with the original cached credentials. */
928f3421	306	local_auth_user = usernamehash->user();
58e94342	307	auth_user_request->user(local_auth_user);
928f3421 AJ	308	} else {
	309	/* store user in hash's */
	310	local_auth_user->addToNameCache();
928f3421 AJ	311	}
	312	/* set these to now because this is either a new login from an
	313	* existing user or a new user */
	314	local_auth_user->expiretime = current_time.tv_sec;
7afc3bf2 AJ	315	auth_user_request->user()->credentials(Auth::Ok);
	316	debugs(29, 4, HERE << "Successfully validated user via NTLM. Username '" << blob << "'");
	317
928f3421 AJ	318	} else if (strncasecmp(reply, "NA ", 3) == 0) {
	319	/* authentication failure (wrong password, etc.) */
	320	auth_user_request->denyMessage(blob);
7afc3bf2 AJ	321	auth_user_request->user()->credentials(Auth::Failed);
	322	safe_free(lm_request->server_blob);
	323	lm_request->releaseAuthServer();
	324	debugs(29, 4, HERE << "Failed validating user via NTLM. Error returned '" << blob << "'");
928f3421 AJ	325	} else if (strncasecmp(reply, "BH ", 3) == 0) {
	326	/* TODO kick off a refresh process. This can occur after a YR or after
	327	* a KK. If after a YR release the helper and resubmit the request via
	328	* Authenticate NTLM start.
	329	* If after a KK deny the user's request w/ 407 and mark the helper as
	330	* Needing YR. */
	331	auth_user_request->denyMessage(blob);
d87154ee	332	auth_user_request->user()->credentials(Auth::Failed);
7afc3bf2 AJ	333	safe_free(lm_request->server_blob);
	334	lm_request->releaseAuthServer();
	335	debugs(29, DBG_IMPORTANT, "ERROR: NTLM Authentication validating user. Error returned '" << reply << "'");
928f3421 AJ	336	} else {
	337	/* protocol error */
	338	fatalf("authenticateNTLMHandleReply: * Unsupported helper response *, '%s'\n", reply);
	339	}
	340
7afc3bf2 AJ	341	if (lm_request->request) {
	342	HTTPMSGUNLOCK(lm_request->request);
	343	lm_request->request = NULL;
928f3421	344	}
4c535e87	345	r->handler(r->data);
1c756645	346	delete r;
928f3421	347	}