/**
* anypy_set_verdict:
* @self: AnyPyProxy instance
* @args: Python args argument
*
* sets verdict for the parent proxy
* args is (verdict,description)
**/
static ZPolicyObj *
anypy_set_verdict(AnyPyProxy * self, ZPolicyObj *args)
{
gint verdict;
gchar *description;
z_proxy_enter(self);
if (!z_policy_var_parse_tuple(args, "is", &verdict, &description))
{
z_policy_raise_exception_obj(z_policy_exc_value_error, "Invalid arguments.");
z_proxy_return(self, NULL);
}
if (self->super.parent_proxy)
{
ZProxyStackIface *iface;
iface = z_proxy_find_iface(self->super.parent_proxy, Z_CLASS(ZProxyStackIface));
if (iface)
{
z_proxy_stack_iface_set_verdict(iface, verdict, description);
z_object_unref(&iface->super);
}
}
z_proxy_return(self, z_policy_none_ref());
}
/**
* anypy_set_content_hint:
* @self: AnyPyProxy instance
* @args: Python args argument
*
* sets verdict for the parent proxy
* args is (verdict,description)
**/
static ZPolicyObj *
anypy_set_content_hint(AnyPyProxy * self, ZPolicyObj *args)
{
gint64 length;
z_proxy_enter(self);
if (!z_policy_var_parse_tuple(args, "L", &length))
{
z_policy_raise_exception_obj(z_policy_exc_value_error, "Invalid arguments.");
z_proxy_leave(self);
return NULL;
}
if (self->super.parent_proxy)
{
ZProxyStackIface *iface;
iface = z_proxy_find_iface(self->super.parent_proxy, Z_CLASS(ZProxyStackIface));
if (iface)
{
z_proxy_stack_iface_set_content_hint(iface, length);
z_object_unref(&iface->super);
}
}
z_proxy_return(self, z_policy_none_ref());
}
/**
* finger_proxy_new:
* @params: ZProxyParams structure
*
* Finger proxy constructor. Allocates and initializes a proxy instance,
* starts proxy thread.
**/
static ZProxy *
finger_proxy_new(ZProxyParams *params)
{
FingerProxy *self;
z_enter();
self = Z_CAST(z_proxy_new(Z_CLASS(FingerProxy), params), FingerProxy);
z_return((ZProxy *) self);
}
/**
* anypy_proxy_new:
* @params: parameters for the AnyPyProxy class constructor
*
* This function is called upon startup to create a new AnyPy proxy.
**/
ZProxy *
anypy_proxy_new(ZProxyParams *params)
{
AnyPyProxy *self;
z_enter();
self = Z_CAST(z_proxy_new(Z_CLASS(AnyPyProxy), params), AnyPyProxy);
z_return(&self->super);
}
ZCertificateChain *
z_certificate_chain_new(void)
{
ZCertificateChain *self = Z_NEW_COMPAT(Z_CLASS(ZCertificateChain), ZCertificateChain);
self->chain = sk_X509_new_null();
return self;
}
static ZProxyIface *
z_transfer2_ps_iface_new(ZTransfer2 *transfer)
{
ZTransfer2PSIface *self;
self = Z_CAST(z_proxy_stack_iface_new(Z_CLASS(ZTransfer2PSIface), transfer->owner), ZTransfer2PSIface);
self->transfer = transfer;
return &self->super;
}
ZProxyIface *
z_proxy_ssl_host_iface_new(ZProxy *owner)
{
ZProxySslHostIface *self;
self = Z_CAST(z_proxy_iface_new(Z_CLASS(ZProxySslHostIface), owner), ZProxySslHostIface);
self->server_cert = owner->ssl_opts.peer_cert[EP_SERVER];
CRYPTO_add(&self->server_cert->references, 1, CRYPTO_LOCK_X509);
return &self->super;
}
/**
* z_proxy_control_stream_read:
* @stream: stream to read from
* @cond: I/O condition which triggered this call
* @user_data: ZProxy instance as a generic pointer
*
* This function is registered as the read callback for control channels
* of stacked programs.
**/
static gboolean
z_proxy_control_stream_read(ZStream *stream, GIOCondition cond G_GNUC_UNUSED, gpointer user_data)
{
ZStackedProxy *stacked = (ZStackedProxy *) user_data;
ZProxy *proxy = stacked->proxy;
GIOStatus st;
gboolean success = FALSE;
ZCPCommand *request = NULL, *response = NULL;
ZCPHeader *hdr1, *hdr2;
guint cp_sid;
ZProxyIface *iface = NULL;
const gchar *fail_reason = "Unknown reason";
gboolean result = TRUE;
z_enter();
g_static_mutex_lock(&stacked->destroy_lock);
if (stacked->destroyed)
{
/* NOTE: this stacked proxy has already been destroyed, but a callback
was still pending, make sure we don't come back again. Note that
our arguments except stacked might already be freed. */
result = FALSE;
goto exit_unlock;
}
if (!stacked->control_proto)
stacked->control_proto = z_cp_context_new(stream);
st = z_cp_context_read(stacked->control_proto, &cp_sid, &request);
if (st == G_IO_STATUS_AGAIN)
goto exit_unlock;
if (st != G_IO_STATUS_NORMAL)
{
/* FIXME: hack, returning FALSE should be enough but it causes
the poll loop to spin, see bug #7219 */
z_stream_set_cond(stream, G_IO_IN, FALSE);
result = FALSE;
goto exit_unlock;
}
response = z_cp_command_new("RESULT");
if (cp_sid != 0)
{
fail_reason = "Non-zero session-id";
goto error;
}
z_log(NULL, CORE_DEBUG, 6, "Read request from stack-control channel; request='%s'", request->command->str);
if (strcmp(request->command->str, "SETVERDICT") == 0
)
{
ZProxyStackIface *siface;
iface = z_proxy_find_iface(proxy, Z_CLASS(ZProxyStackIface));
if (!iface)
{
fail_reason = "Proxy does not support Stack interface";
goto error;
}
siface = (ZProxyBasicIface *) iface;
if (strcmp(request->command->str, "SETVERDICT") == 0)
{
ZVerdict verdict;
hdr1 = z_cp_command_find_header(request, "Verdict");
hdr2 = z_cp_command_find_header(request, "Description");
if (!hdr1)
{
fail_reason = "No Verdict header in SETVERDICT request";
goto error;
}
if (strcmp(hdr1->value->str, "Z_ACCEPT") == 0)
verdict = Z_ACCEPT;
else if (strcmp(hdr1->value->str, "Z_REJECT") == 0)
verdict = Z_REJECT;
else if (strcmp(hdr1->value->str, "Z_DROP") == 0)
verdict = Z_DROP;
else if (strcmp(hdr1->value->str, "Z_ERROR") == 0)
verdict = Z_ERROR;
else
verdict = Z_UNSPEC;
z_proxy_stack_iface_set_verdict(iface, verdict, hdr2 ? hdr2->value->str : NULL);
}
}
else
{
fail_reason = "Unknown request received";
goto error;
}
success = TRUE;
error:
z_cp_command_add_header(response, g_string_new("Status"), g_string_new(success ? "OK" : "Failure"), FALSE);
if (!success)
{
z_cp_command_add_header(response, g_string_new("Fail-Reason"), g_string_new(fail_reason), FALSE);
z_log(NULL, CORE_DEBUG, 6, "Error processing control channel request; request='%s', reason='%s'", request ? request->command->str : "None", fail_reason);
}
z_log(NULL, CORE_DEBUG, 6, "Responding on stack-control channel; response='%s'", response->command->str);
if (z_cp_context_write(stacked->control_proto, 0, response) != G_IO_STATUS_NORMAL)
{
/* this should not have happened */
z_log(NULL, CORE_ERROR, 1, "Internal error writing response to stack-control channel;");
success = FALSE;
}
if (iface)
z_object_unref(&iface->super);
if (request)
z_cp_command_free(request);
if (response)
z_cp_command_free(response);
exit_unlock:
g_static_mutex_unlock(&stacked->destroy_lock);
z_return(result);
}
gboolean
pop3_data_transfer(Pop3Proxy *owner)
{
Pop3Transfer *t;
GString *preamble;
gboolean success;
gchar buf[256];
z_proxy_enter(owner);
preamble = g_string_new(owner->response->str);
if (owner->response_param->len)
{
g_string_append_c(preamble, ' ');
g_string_append(preamble, owner->response_param->str);
}
g_string_append(preamble, "\r\n");
t = Z_CAST(z_dot_transfer_new(Z_CLASS(Pop3Transfer),
&owner->super, owner->poll,
owner->super.endpoints[EP_SERVER], owner->super.endpoints[EP_CLIENT],
owner->buffer_length,
owner->timeout,
ZT2F_COMPLETE_COPY | ZT2F_PROXY_STREAMS_POLLED,
preamble),
Pop3Transfer);
z_transfer2_set_content_format(&t->super.super, "email");
z_stream_line_set_nul_nonfatal(owner->super.endpoints[EP_SERVER], TRUE);
if (owner->policy_enable_longline)
z_stream_line_set_split(owner->super.endpoints[EP_SERVER], TRUE);
success = z_transfer2_simple_run(&t->super.super);
z_stream_line_set_split(owner->super.endpoints[EP_SERVER], FALSE);
z_stream_line_set_nul_nonfatal(owner->super.endpoints[EP_SERVER], FALSE);
if (t->super.dst_write_state == DOT_DW_PREAMBLE)
{
/* nothing was written to destination */
switch (z_transfer2_get_stack_decision(&t->super.super))
{
case ZV_REJECT:
/*LOG
This message indicates that the stacked proxy rejected the content and Zorp
rejects the response.
*/
z_proxy_log(owner, POP3_ERROR, 2, "Stacked proxy rejected contents; info='%s'", z_transfer2_get_stack_info(&t->super.super));
g_snprintf(buf, sizeof(buf), "Content rejected (%s)", z_transfer2_get_stack_info(&t->super.super));
if (owner->reject_by_mail)
pop3_error_msg(owner, buf);
else
pop3_response_reject(owner, buf);
break;
case ZV_ERROR:
g_snprintf(buf, sizeof(buf), "Error occurred while transferring data (%s)", z_transfer2_get_stack_info(&t->super.super));
pop3_response_reject(owner, buf);
owner->pop3_state = POP3_STATE_QUIT;
break;
default:
pop3_response_write(owner);
pop3_write_client(owner, ".\r\n");
break;
}
}
else
{
pop3_write_client(owner, ".\r\n");
}
if (owner->from)
{
g_string_free(owner->from, TRUE);
owner->from = NULL;
}
if (owner->to)
{
g_string_free(owner->to, TRUE);
owner->to = NULL;
}
if (owner->subject)
{
g_string_free(owner->subject, TRUE);
owner->subject = NULL;
}
z_object_unref(&t->super.super.super);
z_proxy_return(owner, success);
}
return &self->super;
}
void
z_proxy_ssl_host_iface_free_method(ZObject *s)
{
ZProxySslHostIface *self = Z_CAST(s, ZProxySslHostIface);
X509_free(self->server_cert);
z_object_free_method(s);
}
ZProxyHostIfaceFuncs z_proxy_ssl_host_iface_funcs =
{
{
Z_FUNCS_COUNT(ZProxyHostIface),
z_proxy_ssl_host_iface_free_method,
},
.check_name = z_proxy_ssl_host_iface_check_name_method,
};
ZClass ZProxySslHostIface__class =
{
Z_CLASS_HEADER,
Z_CLASS(ZProxyHostIface),
"ZProxySslHostIface",
sizeof(ZProxySslHostIface),
&z_proxy_ssl_host_iface_funcs.super,
};
