/**
* Start shortening algorithm, try to allocate a nice short
* canonical name for @a pub in @a shorten_zone, using
* @a original_label as one possible suggestion.
*
* @param original_label original label for the zone
* @param suggested_label suggested label for the zone
* @param pub public key of the zone to shorten
* @param shorten_zone private key of the target zone for the new record
*/
void
GNS_shorten_start (const char *original_label,
const char *suggested_label,
const struct GNUNET_CRYPTO_EcdsaPublicKey *pub,
const struct GNUNET_CRYPTO_EcdsaPrivateKey *shorten_zone)
{
struct GetPseuAuthorityHandle *gph;
struct GNUNET_CRYPTO_EcdsaPublicKey shorten_pub;
if (strlen (original_label) > GNUNET_DNSPARSER_MAX_LABEL_LENGTH)
{
GNUNET_break (0);
return;
}
GNUNET_CRYPTO_ecdsa_key_get_public (shorten_zone, &shorten_pub);
if (0 == memcmp (&shorten_pub, pub, sizeof (struct GNUNET_CRYPTO_EcdsaPublicKey)))
{
/* Do not shorten the shorten zone */
return;
}
GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
"Starting shortening process for `%s' with old label `%s' and suggested nickname `%s'\n",
GNUNET_GNSRECORD_z2s (pub),
original_label, suggested_label);
gph = GNUNET_new (struct GetPseuAuthorityHandle);
gph->shorten_zone_key = *shorten_zone;
gph->target_zone = *pub;
gph->suggested_label = GNUNET_strdup (suggested_label);
strcpy (gph->label, original_label);
GNUNET_CONTAINER_DLL_insert (gph_head, gph_tail, gph);
/* first, check if we *already* have a record for this zone */
gph->namestore_task = GNUNET_NAMESTORE_zone_to_name (namestore_handle,
shorten_zone,
pub,
&zone_to_name_error_cb,
gph,
&process_zone_to_name_discover,
gph);
}
/**
* We got a block back from the namestore. Decrypt it
* and continue to process the result.
*
* @param cls the 'struct Request' we are processing
* @param zone private key of the zone; NULL on disconnect
* @param label label of the records; NULL on disconnect
* @param rd_count number of entries in @a rd array, 0 if label was deleted
* @param rd array of records with data to store
*/
static void
lookup_block_processor (void *cls,
const struct GNUNET_CRYPTO_EcdsaPrivateKey *zone,
const char *label,
unsigned int rd_count,
const struct GNUNET_GNSRECORD_Data *rd)
{
struct Request *request = cls;
request->qe = NULL;
if (0 == rd_count)
{
if (GNUNET_OK !=
GNUNET_CRYPTO_ecdsa_public_key_from_string (request->public_key,
strlen (request->public_key),
&request->pub))
{
GNUNET_break (0);
request->phase = RP_FAIL;
run_httpd_now ();
return;
}
request->qe = GNUNET_NAMESTORE_zone_to_name (ns,
&fcfs_zone_pkey,
&request->pub,
&zone_to_name_cb,
request);
return;
}
GNUNET_break (0 != rd_count);
GNUNET_log (GNUNET_ERROR_TYPE_INFO,
_("Found %u existing records for domain `%s'\n"),
rd_count,
request->domain_name);
request->phase = RP_FAIL;
run_httpd_now ();
return;
}
/**
* Function called with the result from the check if the namestore
* service is actually running. If it is, we start the actual
* operation.
*
* @param cls closure with our configuration
* @param result #GNUNET_YES if the namestore service is running
*/
static void
testservice_task (void *cls,
int result)
{
const struct GNUNET_CONFIGURATION_Handle *cfg = cls;
struct GNUNET_CRYPTO_EcdsaPublicKey pub;
struct GNUNET_GNSRECORD_Data rd;
if (GNUNET_YES != result)
{
FPRINTF (stderr, _("Service `%s' is not running\n"),
"namestore");
return;
}
if (! (add|del|list|(NULL != nickstring)|(NULL != uri)|(NULL != reverse_pkey)) )
{
/* nothing more to be done */
fprintf (stderr,
_("No options given\n"));
GNUNET_SCHEDULER_shutdown ();
return;
}
GNUNET_CRYPTO_ecdsa_key_get_public (&zone_pkey,
&pub);
ns = GNUNET_NAMESTORE_connect (cfg);
if (NULL == ns)
{
GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
_("Failed to connect to namestore\n"));
return;
}
if (add)
{
if (NULL == name)
{
fprintf (stderr,
_("Missing option `%s' for operation `%s'\n"),
"-n", _("add"));
GNUNET_SCHEDULER_shutdown ();
ret = 1;
return;
}
if (NULL == typestring)
{
fprintf (stderr,
_("Missing option `%s' for operation `%s'\n"),
"-t", _("add"));
GNUNET_SCHEDULER_shutdown ();
ret = 1;
return;
}
type = GNUNET_GNSRECORD_typename_to_number (typestring);
if (UINT32_MAX == type)
{
fprintf (stderr, _("Unsupported type `%s'\n"), typestring);
GNUNET_SCHEDULER_shutdown ();
ret = 1;
return;
}
if (NULL == value)
{
fprintf (stderr,
_("Missing option `%s' for operation `%s'\n"),
"-V", _("add"));
ret = 1;
GNUNET_SCHEDULER_shutdown ();
return;
}
if (GNUNET_OK !=
GNUNET_GNSRECORD_string_to_value (type,
value,
&data,
&data_size))
{
fprintf (stderr, _("Value `%s' invalid for record type `%s'\n"),
value,
typestring);
GNUNET_SCHEDULER_shutdown ();
ret = 1;
return;
}
if (NULL == expirationstring)
{
fprintf (stderr,
_("Missing option `%s' for operation `%s'\n"),
"-e", _("add"));
GNUNET_SCHEDULER_shutdown ();
ret = 1;
return;
}
if (0 == strcmp (expirationstring, "never"))
{
etime_abs = GNUNET_TIME_UNIT_FOREVER_ABS;
etime_is_rel = GNUNET_NO;
}
else if (GNUNET_OK ==
GNUNET_STRINGS_fancy_time_to_relative (expirationstring,
&etime_rel))
{
etime_is_rel = GNUNET_YES;
}
else if (GNUNET_OK ==
GNUNET_STRINGS_fancy_time_to_absolute (expirationstring,
&etime_abs))
{
etime_is_rel = GNUNET_NO;
}
else
{
fprintf (stderr,
_("Invalid time format `%s'\n"),
expirationstring);
GNUNET_SCHEDULER_shutdown ();
ret = 1;
return;
}
add_qe = GNUNET_NAMESTORE_records_lookup (ns, &zone_pkey, name,
&get_existing_record, NULL );
}
if (del)
{
if (NULL == name)
{
fprintf (stderr,
_("Missing option `%s' for operation `%s'\n"),
"-n", _("del"));
GNUNET_SCHEDULER_shutdown ();
ret = 1;
return;
}
del_qe = GNUNET_NAMESTORE_records_lookup (ns,
&zone_pkey,
name,
&del_monitor,
NULL);
}
if (list)
{
list_it = GNUNET_NAMESTORE_zone_iteration_start (ns,
&zone_pkey,
&display_record,
NULL);
}
if (NULL != reverse_pkey)
{
struct GNUNET_CRYPTO_EcdsaPublicKey pubkey;
if (GNUNET_OK !=
GNUNET_CRYPTO_ecdsa_public_key_from_string (reverse_pkey,
strlen (reverse_pkey),
&pubkey))
{
fprintf (stderr,
_("Invalid public key for reverse lookup `%s'\n"),
reverse_pkey);
GNUNET_SCHEDULER_shutdown ();
}
reverse_qe = GNUNET_NAMESTORE_zone_to_name (ns,
&zone_pkey,
&pubkey,
&handle_reverse_lookup,
NULL);
}
if (NULL != uri)
{
char sh[105];
char sname[64];
struct GNUNET_CRYPTO_EcdsaPublicKey pkey;
GNUNET_STRINGS_utf8_tolower (uri, uri);
if ( (2 != (sscanf (uri,
"gnunet://gns/%52s/%63s",
sh,
sname)) ) ||
(GNUNET_OK != GNUNET_CRYPTO_ecdsa_public_key_from_string (sh, strlen (sh), &pkey)) )
{
fprintf (stderr,
_("Invalid URI `%s'\n"),
uri);
GNUNET_SCHEDULER_shutdown ();
ret = 1;
return;
}
memset (&rd, 0, sizeof (rd));
rd.data = &pkey;
rd.data_size = sizeof (struct GNUNET_CRYPTO_EcdsaPublicKey);
rd.record_type = GNUNET_GNSRECORD_TYPE_PKEY;
if (GNUNET_YES == etime_is_rel)
{
rd.expiration_time = etime_rel.rel_value_us;
rd.flags |= GNUNET_GNSRECORD_RF_RELATIVE_EXPIRATION;
}
else if (GNUNET_NO == etime_is_rel)
rd.expiration_time = etime_abs.abs_value_us;
else
rd.expiration_time = GNUNET_TIME_UNIT_FOREVER_ABS.abs_value_us;
if (1 == is_shadow)
rd.flags |= GNUNET_GNSRECORD_RF_SHADOW_RECORD;
add_qe_uri = GNUNET_NAMESTORE_records_store (ns,
&zone_pkey,
sname,
1,
&rd,
&add_continuation,
&add_qe_uri);
}
if (NULL != nickstring)
{
if (0 == strlen(nickstring))
{
fprintf (stderr,
_("Invalid nick `%s'\n"),
nickstring);
GNUNET_SCHEDULER_shutdown ();
ret = 1;
return;
}
add_qe_uri = GNUNET_NAMESTORE_set_nick(ns, &zone_pkey, nickstring,
&add_continuation, &add_qe_uri);
}
if (monitor)
{
zm = GNUNET_NAMESTORE_zone_monitor_start (cfg,
&zone_pkey,
GNUNET_YES,
&display_record,
&sync_cb,
NULL);
}
}
