2 * This file is part of GNUnet
3 * Copyright (C) 2013 GNUnet e.V.
5 * GNUnet is free software; you can redistribute it and/or modify
6 * it under the terms of the GNU General Public License as published
7 * by the Free Software Foundation; either version 3, or (at your
8 * option) any later version.
10 * GNUnet is distributed in the hope that it will be useful, but
11 * WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 * General Public License for more details.
15 * You should have received a copy of the GNU General Public License
16 * along with GNUnet; see the file COPYING. If not, write to the
17 * Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
18 * Boston, MA 02110-1301, USA.
22 * @author Gabor X Toth
25 * Social service; implements social interactions using the PSYC service.
32 #include "gnunet_util_lib.h"
33 #include "gnunet_psyc_service.h"
34 #include "gnunet_psyc_util_lib.h"
35 #include "gnunet_social_service.h"
38 #define LOG(kind,...) GNUNET_log_from (kind, "social-api",__VA_ARGS__)
43 struct GNUNET_SOCIAL_Ego
45 struct GNUNET_CRYPTO_EcdsaPublicKey pub_key;
46 struct GNUNET_HashCode pub_key_hash;
52 * Handle for a pseudonym of another user in the network.
54 struct GNUNET_SOCIAL_Nym
56 struct GNUNET_CRYPTO_EcdsaPublicKey pub_key;
57 struct GNUNET_HashCode pub_key_hash;
62 * Handle for an application.
64 struct GNUNET_SOCIAL_App
67 * Configuration to use.
69 const struct GNUNET_CONFIGURATION_Handle *cfg;
72 * Client connection to the service.
74 struct GNUNET_MQ_Handle *mq;
77 * Message to send on connect.
79 struct GNUNET_MQ_Envelope *connect_env;
82 * Time to wait until we try to reconnect on failure.
84 struct GNUNET_TIME_Relative reconnect_delay;
87 * Task for reconnecting when the listener fails.
89 struct GNUNET_SCHEDULER_Task *reconnect_task;
94 struct GNUNET_OP_Handle *op;
97 * Function called after disconnected from the service.
99 GNUNET_ContinuationCallback disconnect_cb;
102 * Closure for @a disconnect_cb.
104 void *disconnect_cls;
112 * Hash map of all egos.
113 * pub_key_hash -> struct GNUNET_SOCIAL_Ego *
115 struct GNUNET_CONTAINER_MultiHashMap *egos;
117 GNUNET_SOCIAL_AppEgoCallback ego_cb;
118 GNUNET_SOCIAL_AppHostPlaceCallback host_cb;
119 GNUNET_SOCIAL_AppGuestPlaceCallback guest_cb;
120 GNUNET_SOCIAL_AppConnectedCallback connected_cb;
125 struct GNUNET_SOCIAL_HostConnection
127 struct GNUNET_SOCIAL_App *app;
129 struct AppPlaceMessage plc_msg;
133 struct GNUNET_SOCIAL_GuestConnection
135 struct GNUNET_SOCIAL_App *app;
137 struct AppPlaceMessage plc_msg;
142 * Handle for a place where social interactions happen.
144 struct GNUNET_SOCIAL_Place
147 * Configuration to use.
149 const struct GNUNET_CONFIGURATION_Handle *cfg;
152 * Client connection to the service.
154 struct GNUNET_MQ_Handle *mq;
157 * Message to send on connect.
159 struct GNUNET_MQ_Envelope *connect_env;
162 * Time to wait until we try to reconnect on failure.
164 struct GNUNET_TIME_Relative reconnect_delay;
167 * Task for reconnecting when the listener fails.
169 struct GNUNET_SCHEDULER_Task *reconnect_task;
174 struct GNUNET_OP_Handle *op;
177 * Transmission handle.
179 struct GNUNET_PSYC_TransmitHandle *tmit;
182 * Slicer for processing incoming messages.
184 struct GNUNET_PSYC_Slicer *slicer;
187 * Function called after disconnected from the service.
189 GNUNET_ContinuationCallback disconnect_cb;
192 * Closure for @a disconnect_cb.
194 void *disconnect_cls;
197 * Public key of the place.
199 struct GNUNET_CRYPTO_EddsaPublicKey pub_key;
202 * Public key of the ego.
204 struct GNUNET_CRYPTO_EcdsaPublicKey ego_pub_key;
207 * Does this place belong to a host (#GNUNET_YES) or guest (#GNUNET_NO)?
214 * Host handle for a place that we entered.
216 struct GNUNET_SOCIAL_Host
218 struct GNUNET_SOCIAL_Place plc;
221 * Slicer for processing incoming messages from guests.
223 struct GNUNET_PSYC_Slicer *slicer;
225 GNUNET_SOCIAL_HostEnterCallback enter_cb;
227 GNUNET_SOCIAL_AnswerDoorCallback answer_door_cb;
229 GNUNET_SOCIAL_FarewellCallback farewell_cb;
232 * Closure for callbacks.
236 struct GNUNET_SOCIAL_Nym *notice_place_leave_nym;
237 struct GNUNET_PSYC_Environment *notice_place_leave_env;
242 * Guest handle for place that we entered.
244 struct GNUNET_SOCIAL_Guest
246 struct GNUNET_SOCIAL_Place plc;
248 GNUNET_SOCIAL_GuestEnterCallback enter_cb;
250 GNUNET_SOCIAL_EntryDecisionCallback entry_dcsn_cb;
253 * Closure for callbacks.
260 * Hash map of all nyms.
261 * pub_key_hash -> struct GNUNET_SOCIAL_Nym *
263 struct GNUNET_CONTAINER_MultiHashMap *nyms;
267 * Handle for an announcement request.
269 struct GNUNET_SOCIAL_Announcement
278 struct GNUNET_SOCIAL_TalkRequest
287 struct GNUNET_SOCIAL_HistoryRequest
292 struct GNUNET_SOCIAL_Place *plc;
300 * Slicer for processing incoming messages.
302 struct GNUNET_PSYC_Slicer *slicer;
305 * Function to call when the operation finished.
307 GNUNET_ResultCallback result_cb;
310 * Closure for @a result_cb.
316 struct GNUNET_SOCIAL_LookHandle
321 struct GNUNET_SOCIAL_Place *plc;
329 * State variable result callback.
331 GNUNET_PSYC_StateVarCallback var_cb;
334 * Function to call when the operation finished.
336 GNUNET_ResultCallback result_cb;
339 * Name of current modifier being received.
344 * Size of current modifier value being received.
346 size_t mod_value_size;
349 * Remaining size of current modifier value still to be received.
351 size_t mod_value_remaining;
354 * Closure for @a result_cb.
360 struct ZoneAddPlaceHandle
362 GNUNET_ResultCallback result_cb;
367 struct ZoneAddNymHandle
369 GNUNET_ResultCallback result_cb;
376 static struct GNUNET_SOCIAL_Nym *
377 nym_get_or_create (const struct GNUNET_CRYPTO_EcdsaPublicKey *pub_key)
379 struct GNUNET_SOCIAL_Nym *nym = NULL;
380 struct GNUNET_HashCode pub_key_hash;
385 GNUNET_CRYPTO_hash (pub_key, sizeof (*pub_key), &pub_key_hash);
388 nyms = GNUNET_CONTAINER_multihashmap_create (1, GNUNET_YES);
390 nym = GNUNET_CONTAINER_multihashmap_get (nyms, &pub_key_hash);
394 nym = GNUNET_new (struct GNUNET_SOCIAL_Nym);
395 nym->pub_key = *pub_key;
396 nym->pub_key_hash = pub_key_hash;
397 GNUNET_CONTAINER_multihashmap_put (nyms, &nym->pub_key_hash, nym,
398 GNUNET_CONTAINER_MULTIHASHMAPOPTION_UNIQUE_FAST);
405 nym_destroy (struct GNUNET_SOCIAL_Nym *nym)
407 GNUNET_CONTAINER_multihashmap_remove (nyms, &nym->pub_key_hash, nym);
412 /*** MESSAGE HANDLERS ***/
414 /** _notice_place_leave from guests */
417 host_recv_notice_place_leave_method (void *cls,
418 const struct GNUNET_PSYC_MessageHeader *msg,
419 const struct GNUNET_PSYC_MessageMethod *meth,
421 const char *method_name)
423 struct GNUNET_SOCIAL_Host *hst = cls;
425 if (0 == memcmp (&(struct GNUNET_CRYPTO_EcdsaPublicKey) {},
426 &msg->slave_pub_key, sizeof (msg->slave_pub_key)))
429 struct GNUNET_SOCIAL_Nym *nym = nym_get_or_create (&msg->slave_pub_key);
431 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
432 "Host received method for message ID %" PRIu64 " from nym %s: %s\n",
433 message_id, GNUNET_h2s (&nym->pub_key_hash), method_name);
435 hst->notice_place_leave_nym = (struct GNUNET_SOCIAL_Nym *) nym;
436 hst->notice_place_leave_env = GNUNET_PSYC_env_create ();
438 char *str = GNUNET_CRYPTO_ecdsa_public_key_to_string (&hst->notice_place_leave_nym->pub_key);
439 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
440 "_notice_place_leave: got method from nym %s (%s).\n",
441 GNUNET_h2s (&hst->notice_place_leave_nym->pub_key_hash), str);
447 host_recv_notice_place_leave_modifier (void *cls,
448 const struct GNUNET_PSYC_MessageHeader *msg,
449 const struct GNUNET_MessageHeader *pmsg,
451 enum GNUNET_PSYC_Operator oper,
455 uint16_t full_value_size)
457 struct GNUNET_SOCIAL_Host *hst = cls;
458 if (NULL == hst->notice_place_leave_env)
461 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
462 "Host received modifier for _notice_place_leave message with ID %" PRIu64 ":\n"
464 message_id, oper, name, value_size, (const char *) value);
466 /* skip _nym, it's added later in eom() */
467 if (0 == memcmp (name, "_nym", sizeof ("_nym"))
468 || 0 == memcmp (name, "_nym_", sizeof ("_nym_") - 1))
471 GNUNET_PSYC_env_add (hst->notice_place_leave_env,
472 GNUNET_PSYC_OP_SET, name, value, value_size);
477 host_recv_notice_place_leave_eom (void *cls,
478 const struct GNUNET_PSYC_MessageHeader *msg,
479 const struct GNUNET_MessageHeader *pmsg,
481 uint8_t is_cancelled)
483 struct GNUNET_SOCIAL_Host *hst = cls;
484 if (NULL == hst->notice_place_leave_env)
487 char *str = GNUNET_CRYPTO_ecdsa_public_key_to_string (&hst->notice_place_leave_nym->pub_key);
488 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
489 "_notice_place_leave: got EOM from nym %s (%s).\n",
490 GNUNET_h2s (&hst->notice_place_leave_nym->pub_key_hash), str);
493 if (GNUNET_YES != is_cancelled)
495 if (NULL != hst->farewell_cb)
496 hst->farewell_cb (hst->cb_cls, hst->notice_place_leave_nym,
497 hst->notice_place_leave_env);
498 /* announce leaving guest to place */
499 GNUNET_PSYC_env_add (hst->notice_place_leave_env, GNUNET_PSYC_OP_SET,
500 "_nym", hst->notice_place_leave_nym,
501 sizeof (*hst->notice_place_leave_nym));
502 GNUNET_SOCIAL_host_announce (hst, "_notice_place_leave",
503 hst->notice_place_leave_env,
504 NULL, NULL, GNUNET_SOCIAL_ANNOUNCE_NONE);
505 nym_destroy (hst->notice_place_leave_nym);
507 GNUNET_PSYC_env_destroy (hst->notice_place_leave_env);
508 hst->notice_place_leave_env = NULL;
516 check_place_result (void *cls,
517 const struct GNUNET_OperationResultMessage *res)
519 uint16_t size = ntohs (res->header.size);
520 if (size < sizeof (*res))
521 { /* Error, message too small. */
523 return GNUNET_SYSERR;
530 handle_place_result (void *cls,
531 const struct GNUNET_OperationResultMessage *res)
533 struct GNUNET_SOCIAL_Place *plc = cls;
535 uint16_t size = ntohs (res->header.size);
536 uint16_t data_size = size - sizeof (*res);
537 const char *data = (0 < data_size) ? (const char *) &res[1] : NULL;
539 GNUNET_OP_result (plc->op, GNUNET_ntohll (res->op_id),
540 GNUNET_ntohll (res->result_code),
541 data, data_size, NULL);
546 check_app_result (void *cls,
547 const struct GNUNET_OperationResultMessage *res)
549 uint16_t size = ntohs (res->header.size);
550 if (size < sizeof (*res))
551 { /* Error, message too small. */
553 return GNUNET_SYSERR;
560 handle_app_result (void *cls,
561 const struct GNUNET_OperationResultMessage *res)
563 struct GNUNET_SOCIAL_App *app = cls;
565 uint16_t size = ntohs (res->header.size);
566 uint16_t data_size = size - sizeof (*res);
567 const char *data = (0 < data_size) ? (const char *) &res[1] : NULL;
569 GNUNET_OP_result (app->op, GNUNET_ntohll (res->op_id),
570 GNUNET_ntohll (res->result_code),
571 data, data_size, NULL);
576 op_recv_history_result (void *cls, int64_t result,
577 const void *err_msg, uint16_t err_msg_size)
579 LOG (GNUNET_ERROR_TYPE_DEBUG,
580 "Received history replay result: %" PRId64 ".\n", result);
582 struct GNUNET_SOCIAL_HistoryRequest *hist = cls;
584 if (NULL != hist->result_cb)
585 hist->result_cb (hist->cls, result, err_msg, err_msg_size);
592 op_recv_state_result (void *cls, int64_t result,
593 const void *err_msg, uint16_t err_msg_size)
595 LOG (GNUNET_ERROR_TYPE_DEBUG,
596 "Received state request result: %" PRId64 ".\n", result);
598 struct GNUNET_SOCIAL_LookHandle *look = cls;
600 if (NULL != look->result_cb)
601 look->result_cb (look->cls, result, err_msg, err_msg_size);
608 check_place_history_result (void *cls,
609 const struct GNUNET_OperationResultMessage *res)
611 struct GNUNET_PSYC_MessageHeader *
612 pmsg = (struct GNUNET_PSYC_MessageHeader *) GNUNET_MQ_extract_nested_mh (res);
613 uint16_t size = ntohs (res->header.size);
615 if (NULL == pmsg || size < sizeof (*res) + sizeof (*pmsg))
616 { /* Error, message too small. */
618 return GNUNET_SYSERR;
625 handle_place_history_result (void *cls,
626 const struct GNUNET_OperationResultMessage *res)
628 struct GNUNET_SOCIAL_Place *plc = cls;
629 struct GNUNET_PSYC_MessageHeader *
630 pmsg = (struct GNUNET_PSYC_MessageHeader *) GNUNET_MQ_extract_nested_mh (res);
632 LOG (GNUNET_ERROR_TYPE_DEBUG,
633 "%p Received historic fragment for message #%" PRIu64 ".\n",
634 plc, GNUNET_ntohll (pmsg->message_id));
636 GNUNET_ResultCallback result_cb = NULL;
637 struct GNUNET_SOCIAL_HistoryRequest *hist = NULL;
639 if (GNUNET_YES != GNUNET_OP_get (plc->op,
640 GNUNET_ntohll (res->op_id),
641 &result_cb, (void *) &hist, NULL))
642 { /* Operation not found. */
643 LOG (GNUNET_ERROR_TYPE_WARNING,
644 "%p Replay operation not found for historic fragment of message #%"
646 plc, GNUNET_ntohll (pmsg->message_id));
650 GNUNET_PSYC_slicer_message (hist->slicer,
651 (const struct GNUNET_PSYC_MessageHeader *) pmsg);
656 check_place_state_result (void *cls,
657 const struct GNUNET_OperationResultMessage *res)
659 const struct GNUNET_MessageHeader *mod = GNUNET_MQ_extract_nested_mh (res);
663 LOG (GNUNET_ERROR_TYPE_WARNING,
664 "Invalid modifier in state result\n");
665 return GNUNET_SYSERR;
668 uint16_t size = ntohs (res->header.size);
669 uint16_t mod_size = ntohs (mod->size);
670 if (size - sizeof (*res) != mod_size)
673 LOG (GNUNET_ERROR_TYPE_WARNING,
674 "Invalid modifier size in state result: %u - %u != %u\n",
675 ntohs (res->header.size), sizeof (*res), mod_size);
676 return GNUNET_SYSERR;
683 handle_place_state_result (void *cls,
684 const struct GNUNET_OperationResultMessage *res)
686 struct GNUNET_SOCIAL_Place *plc = cls;
688 GNUNET_ResultCallback result_cb = NULL;
689 struct GNUNET_SOCIAL_LookHandle *look = NULL;
691 if (GNUNET_YES != GNUNET_OP_get (plc->op,
692 GNUNET_ntohll (res->op_id),
693 &result_cb, (void *) &look, NULL))
694 { /* Operation not found. */
698 const struct GNUNET_MessageHeader *mod = GNUNET_MQ_extract_nested_mh (res);
699 uint16_t mod_size = ntohs (mod->size);
701 switch (ntohs (mod->type))
703 case GNUNET_MESSAGE_TYPE_PSYC_MESSAGE_MODIFIER:
705 const struct GNUNET_PSYC_MessageModifier *
706 pmod = (const struct GNUNET_PSYC_MessageModifier *) mod;
708 const char *name = (const char *) &pmod[1];
709 uint16_t name_size = ntohs (pmod->name_size);
711 || mod_size - sizeof (*pmod) < name_size
712 || '\0' != name[name_size - 1])
715 LOG (GNUNET_ERROR_TYPE_WARNING,
716 "Invalid modifier name in state result\n");
719 look->mod_value_size = ntohs (pmod->value_size);
720 look->var_cb (look->cls, mod, name, name + name_size,
721 mod_size - sizeof (*mod) - name_size,
722 look->mod_value_size);
723 if (look->mod_value_size > mod_size - sizeof (*mod) - name_size)
725 look->mod_value_remaining = look->mod_value_size;
726 look->mod_name = GNUNET_malloc (name_size);
727 GNUNET_memcpy (look->mod_name, name, name_size);
732 case GNUNET_MESSAGE_TYPE_PSYC_MESSAGE_MOD_CONT:
733 look->var_cb (look->cls, mod, look->mod_name, (const char *) &mod[1],
734 mod_size - sizeof (*mod), look->mod_value_size);
735 look->mod_value_remaining -= mod_size - sizeof (*mod);
736 if (0 == look->mod_value_remaining)
738 GNUNET_free (look->mod_name);
746 handle_place_message_ack (void *cls,
747 const struct GNUNET_MessageHeader *msg)
749 struct GNUNET_SOCIAL_Place *plc = cls;
751 GNUNET_PSYC_transmit_got_ack (plc->tmit);
756 check_place_message (void *cls,
757 const struct GNUNET_PSYC_MessageHeader *pmsg)
764 handle_place_message (void *cls,
765 const struct GNUNET_PSYC_MessageHeader *pmsg)
767 struct GNUNET_SOCIAL_Place *plc = cls;
769 GNUNET_PSYC_slicer_message (plc->slicer, pmsg);
774 check_host_message (void *cls,
775 const struct GNUNET_PSYC_MessageHeader *pmsg)
782 handle_host_message (void *cls,
783 const struct GNUNET_PSYC_MessageHeader *pmsg)
785 struct GNUNET_SOCIAL_Host *hst = cls;
787 GNUNET_PSYC_slicer_message (hst->slicer, pmsg);
788 GNUNET_PSYC_slicer_message (hst->plc.slicer, pmsg);
793 handle_host_enter_ack (void *cls,
794 const struct HostEnterAck *hack)
796 struct GNUNET_SOCIAL_Host *hst = cls;
798 hst->plc.pub_key = hack->place_pub_key;
800 int32_t result = ntohl (hack->result_code);
801 if (NULL != hst->enter_cb)
802 hst->enter_cb (hst->cb_cls, result, &hack->place_pub_key,
803 GNUNET_ntohll (hack->max_message_id));
808 check_host_enter_request (void *cls,
809 const struct GNUNET_PSYC_JoinRequestMessage *req)
816 handle_host_enter_request (void *cls,
817 const struct GNUNET_PSYC_JoinRequestMessage *req)
819 struct GNUNET_SOCIAL_Host *hst = cls;
821 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
822 "handle_host_enter_request\n");
824 if (NULL == hst->answer_door_cb)
827 const char *method_name = NULL;
828 struct GNUNET_PSYC_Environment *env = NULL;
829 struct GNUNET_PSYC_MessageHeader *entry_pmsg = NULL;
830 const void *data = NULL;
831 uint16_t data_size = 0;
833 const struct GNUNET_PSYC_Message *join_msg = NULL;
837 if (sizeof (*req) + sizeof (*join_msg) <= ntohs (req->header.size))
839 join_msg = (struct GNUNET_PSYC_Message *) GNUNET_MQ_extract_nested_mh (req);
840 LOG (GNUNET_ERROR_TYPE_DEBUG,
841 "Received join_msg of type %u and size %u.\n",
842 ntohs (join_msg->header.type), ntohs (join_msg->header.size));
844 env = GNUNET_PSYC_env_create ();
845 entry_pmsg = GNUNET_PSYC_message_header_create_from_psyc (join_msg);
846 if (GNUNET_OK != GNUNET_PSYC_message_parse (entry_pmsg, &method_name, env,
850 str = GNUNET_CRYPTO_ecdsa_public_key_to_string (&req->slave_pub_key);
851 LOG (GNUNET_ERROR_TYPE_WARNING,
852 "Ignoring invalid entry request from nym %s.\n",
859 struct GNUNET_SOCIAL_Nym *nym = nym_get_or_create (&req->slave_pub_key);
860 hst->answer_door_cb (hst->cb_cls, nym, method_name, env,
865 GNUNET_PSYC_env_destroy (env);
866 if (NULL != entry_pmsg)
867 GNUNET_free (entry_pmsg);
872 handle_guest_enter_ack (void *cls,
873 const struct GNUNET_PSYC_CountersResultMessage *cres)
875 struct GNUNET_SOCIAL_Guest *gst = cls;
877 int32_t result = ntohl (cres->result_code);
878 if (NULL != gst->enter_cb)
879 gst->enter_cb (gst->cb_cls, result, &gst->plc.pub_key,
880 GNUNET_ntohll (cres->max_message_id));
885 check_guest_enter_decision (void *cls,
886 const struct GNUNET_PSYC_JoinDecisionMessage *dcsn)
893 handle_guest_enter_decision (void *cls,
894 const struct GNUNET_PSYC_JoinDecisionMessage *dcsn)
896 struct GNUNET_SOCIAL_Guest *gst = cls;
898 struct GNUNET_PSYC_Message *pmsg = NULL;
899 if (ntohs (dcsn->header.size) > sizeof (*dcsn))
900 pmsg = (struct GNUNET_PSYC_Message *) GNUNET_MQ_extract_nested_mh (dcsn);
902 if (NULL != gst->entry_dcsn_cb)
903 gst->entry_dcsn_cb (gst->cb_cls, ntohl (dcsn->is_admitted), pmsg);
908 check_app_ego (void *cls,
909 const struct AppEgoMessage *emsg)
916 handle_app_ego (void *cls,
917 const struct AppEgoMessage *emsg)
919 struct GNUNET_SOCIAL_App *app = cls;
921 uint16_t name_size = ntohs (emsg->header.size) - sizeof (*emsg);
923 struct GNUNET_HashCode ego_pub_hash;
924 GNUNET_CRYPTO_hash (&emsg->ego_pub_key, sizeof (emsg->ego_pub_key),
927 struct GNUNET_SOCIAL_Ego *
928 ego = GNUNET_CONTAINER_multihashmap_get (app->egos, &ego_pub_hash);
931 ego = GNUNET_malloc (sizeof (*ego));
932 ego->pub_key = emsg->ego_pub_key;
933 ego->name = GNUNET_malloc (name_size);
934 GNUNET_memcpy (ego->name, &emsg[1], name_size);
938 ego->name = GNUNET_realloc (ego->name, name_size);
939 GNUNET_memcpy (ego->name, &emsg[1], name_size);
942 GNUNET_CONTAINER_multihashmap_put (app->egos, &ego_pub_hash, ego,
943 GNUNET_CONTAINER_MULTIHASHMAPOPTION_REPLACE);
945 if (NULL != app->ego_cb)
946 app->ego_cb (app->cb_cls, ego, &ego->pub_key, ego->name);
951 handle_app_ego_end (void *cls,
952 const struct GNUNET_MessageHeader *msg)
954 //struct GNUNET_SOCIAL_App *app = cls;
959 check_app_place (void *cls,
960 const struct AppPlaceMessage *pmsg)
967 handle_app_place (void *cls,
968 const struct AppPlaceMessage *pmsg)
970 struct GNUNET_SOCIAL_App *app = cls;
972 if ((GNUNET_YES == pmsg->is_host && NULL == app->host_cb)
973 || (GNUNET_NO == pmsg->is_host && NULL == app->guest_cb))
976 struct GNUNET_HashCode ego_pub_hash;
977 GNUNET_CRYPTO_hash (&pmsg->ego_pub_key, sizeof (pmsg->ego_pub_key),
979 struct GNUNET_SOCIAL_Ego *
980 ego = GNUNET_CONTAINER_multihashmap_get (app->egos, &ego_pub_hash);
983 GNUNET_log (GNUNET_ERROR_TYPE_ERROR, "Failure to obtain ego %s.\n",
984 GNUNET_h2s (&ego_pub_hash));
989 if (GNUNET_YES == pmsg->is_host)
991 if (NULL != app->host_cb) {
992 struct GNUNET_SOCIAL_HostConnection *hconn = GNUNET_malloc (sizeof (*hconn));
994 hconn->plc_msg = *pmsg;
995 app->host_cb (app->cb_cls, hconn, ego, &pmsg->place_pub_key, pmsg->place_state);
999 else if (NULL != app->guest_cb)
1001 struct GNUNET_SOCIAL_GuestConnection *gconn = GNUNET_malloc (sizeof (*gconn));
1003 gconn->plc_msg = *pmsg;
1004 app->guest_cb (app->cb_cls, gconn, ego, &pmsg->place_pub_key, pmsg->place_state);
1005 GNUNET_free (gconn);
1011 handle_app_place_end (void *cls,
1012 const struct GNUNET_MessageHeader *msg)
1014 struct GNUNET_SOCIAL_App *app = cls;
1016 if (NULL != app->connected_cb)
1017 app->connected_cb (app->cb_cls);
1021 /*** CLEANUP / DISCONNECT ***/
1025 host_cleanup (struct GNUNET_SOCIAL_Host *hst)
1027 if (NULL != hst->slicer)
1029 GNUNET_PSYC_slicer_destroy (hst->slicer);
1037 guest_cleanup (struct GNUNET_SOCIAL_Guest *gst)
1044 place_cleanup (struct GNUNET_SOCIAL_Place *plc)
1046 struct GNUNET_HashCode place_pub_hash;
1047 GNUNET_CRYPTO_hash (&plc->pub_key, sizeof (plc->pub_key), &place_pub_hash);
1048 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
1049 "%s place cleanup: %s\n",
1050 GNUNET_YES == plc->is_host ? "host" : "guest",
1051 GNUNET_h2s (&place_pub_hash));
1053 if (NULL != plc->tmit)
1055 GNUNET_PSYC_transmit_destroy (plc->tmit);
1058 if (NULL != plc->connect_env)
1060 GNUNET_MQ_discard (plc->connect_env);
1061 plc->connect_env = NULL;
1063 if (NULL != plc->mq)
1065 GNUNET_MQ_destroy (plc->mq);
1068 if (NULL != plc->disconnect_cb)
1070 plc->disconnect_cb (plc->disconnect_cls);
1071 plc->disconnect_cb = NULL;
1074 (GNUNET_YES == plc->is_host)
1075 ? host_cleanup ((struct GNUNET_SOCIAL_Host *) plc)
1076 : guest_cleanup ((struct GNUNET_SOCIAL_Guest *) plc);
1081 place_disconnect (struct GNUNET_SOCIAL_Place *plc)
1083 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
1084 "place_disconnect, plc = %p\n",
1086 if (NULL != plc->mq)
1088 //struct GNUNET_MQ_Envelope *env = GNUNET_MQ_get_last_envelope (plc->mq);
1089 if (GNUNET_MQ_get_length (plc->mq) > 0)
1091 struct GNUNET_MQ_Envelope *env = GNUNET_MQ_get_last_envelope (plc->mq);
1092 GNUNET_MQ_notify_sent (env, (GNUNET_SCHEDULER_TaskCallback) place_disconnect, plc);
1096 place_cleanup (plc);
1101 place_cleanup (plc);
1107 place_leave (struct GNUNET_SOCIAL_Place *plc)
1109 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
1110 "social_api: place_leave\n");
1111 struct GNUNET_MessageHeader *msg;
1112 struct GNUNET_MQ_Envelope *
1113 env = GNUNET_MQ_msg (msg, GNUNET_MESSAGE_TYPE_SOCIAL_PLACE_LEAVE);
1115 GNUNET_MQ_send (plc->mq, env);
1123 host_connect (struct GNUNET_SOCIAL_Host *hst);
1127 host_reconnect (void *cls)
1134 * Host client disconnected from service.
1136 * Reconnect after backoff period.
1139 host_disconnected (void *cls, enum GNUNET_MQ_Error error)
1141 struct GNUNET_SOCIAL_Host *hst = cls;
1142 struct GNUNET_SOCIAL_Place *plc = &hst->plc;
1144 LOG (GNUNET_ERROR_TYPE_DEBUG,
1145 "Host client disconnected (%d), re-connecting\n",
1147 if (NULL != plc->tmit)
1149 GNUNET_PSYC_transmit_destroy (plc->tmit);
1152 if (NULL != plc->mq)
1154 GNUNET_MQ_destroy (plc->mq);
1158 plc->reconnect_task = GNUNET_SCHEDULER_add_delayed (plc->reconnect_delay,
1161 plc->reconnect_delay = GNUNET_TIME_STD_BACKOFF (plc->reconnect_delay);
1166 host_connect (struct GNUNET_SOCIAL_Host *hst)
1168 struct GNUNET_SOCIAL_Place *plc = &hst->plc;
1170 struct GNUNET_MQ_MessageHandler handlers[] = {
1171 GNUNET_MQ_hd_fixed_size (host_enter_ack,
1172 GNUNET_MESSAGE_TYPE_SOCIAL_HOST_ENTER_ACK,
1173 struct HostEnterAck,
1175 GNUNET_MQ_hd_var_size (host_enter_request,
1176 GNUNET_MESSAGE_TYPE_PSYC_JOIN_REQUEST,
1177 struct GNUNET_PSYC_JoinRequestMessage,
1179 GNUNET_MQ_hd_var_size (host_message,
1180 GNUNET_MESSAGE_TYPE_PSYC_MESSAGE,
1181 struct GNUNET_PSYC_MessageHeader,
1183 GNUNET_MQ_hd_fixed_size (place_message_ack,
1184 GNUNET_MESSAGE_TYPE_PSYC_MESSAGE_ACK,
1185 struct GNUNET_MessageHeader,
1187 GNUNET_MQ_hd_var_size (place_history_result,
1188 GNUNET_MESSAGE_TYPE_PSYC_HISTORY_RESULT,
1189 struct GNUNET_OperationResultMessage,
1191 GNUNET_MQ_hd_var_size (place_state_result,
1192 GNUNET_MESSAGE_TYPE_PSYC_STATE_RESULT,
1193 struct GNUNET_OperationResultMessage,
1195 GNUNET_MQ_hd_var_size (place_result,
1196 GNUNET_MESSAGE_TYPE_PSYC_RESULT_CODE,
1197 struct GNUNET_OperationResultMessage,
1199 GNUNET_MQ_handler_end ()
1202 plc->mq = GNUNET_CLIENT_connect (plc->cfg, "social",
1203 handlers, host_disconnected, hst);
1204 GNUNET_assert (NULL != plc->mq);
1205 plc->tmit = GNUNET_PSYC_transmit_create (plc->mq);
1207 GNUNET_MQ_send_copy (plc->mq, plc->connect_env);
1212 * Enter a place as host.
1214 * A place is created upon first entering, and it is active until permanently
1215 * left using GNUNET_SOCIAL_host_leave().
1218 * Application handle.
1220 * Identity of the host.
1222 * Policy specifying entry and history restrictions for the place.
1224 * Slicer to handle incoming messages.
1226 * Function called when the place is entered and ready to use.
1227 * @param answer_door_cb
1228 * Function to handle new nyms that want to enter.
1229 * @param farewell_cb
1230 * Function to handle departing nyms.
1232 * Closure for the callbacks.
1234 * @return Handle for the host. This handle contains the pubkey.
1236 struct GNUNET_SOCIAL_Host *
1237 GNUNET_SOCIAL_host_enter (const struct GNUNET_SOCIAL_App *app,
1238 const struct GNUNET_SOCIAL_Ego *ego,
1239 enum GNUNET_PSYC_Policy policy,
1240 struct GNUNET_PSYC_Slicer *slicer,
1241 GNUNET_SOCIAL_HostEnterCallback enter_cb,
1242 GNUNET_SOCIAL_AnswerDoorCallback answer_door_cb,
1243 GNUNET_SOCIAL_FarewellCallback farewell_cb,
1246 struct GNUNET_SOCIAL_Host *hst = GNUNET_malloc (sizeof (*hst));
1247 struct GNUNET_SOCIAL_Place *plc = &hst->plc;
1249 plc->cfg = app->cfg;
1250 plc->is_host = GNUNET_YES;
1251 plc->slicer = slicer;
1253 hst->enter_cb = enter_cb;
1254 hst->answer_door_cb = answer_door_cb;
1255 hst->farewell_cb = farewell_cb;
1258 plc->op = GNUNET_OP_create ();
1260 hst->slicer = GNUNET_PSYC_slicer_create ();
1261 GNUNET_PSYC_slicer_method_add (hst->slicer, "_notice_place_leave", NULL,
1262 host_recv_notice_place_leave_method,
1263 host_recv_notice_place_leave_modifier,
1264 NULL, host_recv_notice_place_leave_eom, hst);
1266 uint16_t app_id_size = strlen (app->id) + 1;
1267 struct HostEnterRequest *hreq;
1268 plc->connect_env = GNUNET_MQ_msg_extra (hreq, app_id_size,
1269 GNUNET_MESSAGE_TYPE_SOCIAL_HOST_ENTER);
1270 hreq->policy = policy;
1271 hreq->ego_pub_key = ego->pub_key;
1272 GNUNET_memcpy (&hreq[1], app->id, app_id_size);
1280 * Reconnect to an already entered place as host.
1283 * Host connection handle.
1284 * @see GNUNET_SOCIAL_app_connect() & GNUNET_SOCIAL_AppHostPlaceCallback()
1286 * Slicer to handle incoming messages.
1288 * Function called when the place is entered and ready to use.
1289 * @param answer_door_cb
1290 * Function to handle new nyms that want to enter.
1291 * @param farewell_cb
1292 * Function to handle departing nyms.
1294 * Closure for the callbacks.
1296 * @return Handle for the host.
1298 struct GNUNET_SOCIAL_Host *
1299 GNUNET_SOCIAL_host_enter_reconnect (struct GNUNET_SOCIAL_HostConnection *hconn,
1300 struct GNUNET_PSYC_Slicer *slicer,
1301 GNUNET_SOCIAL_HostEnterCallback enter_cb,
1302 GNUNET_SOCIAL_AnswerDoorCallback answer_door_cb,
1303 GNUNET_SOCIAL_FarewellCallback farewell_cb,
1306 struct GNUNET_SOCIAL_Host *hst = GNUNET_malloc (sizeof (*hst));
1307 struct GNUNET_SOCIAL_Place *plc = &hst->plc;
1309 hst->enter_cb = enter_cb;
1310 hst->answer_door_cb = answer_door_cb;
1311 hst->farewell_cb = farewell_cb;
1314 plc->cfg = hconn->app->cfg;
1315 plc->is_host = GNUNET_YES;
1316 plc->slicer = slicer;
1317 plc->pub_key = hconn->plc_msg.place_pub_key;
1318 plc->ego_pub_key = hconn->plc_msg.ego_pub_key;
1320 plc->op = GNUNET_OP_create ();
1322 hst->slicer = GNUNET_PSYC_slicer_create ();
1323 GNUNET_PSYC_slicer_method_add (hst->slicer, "_notice_place_leave", NULL,
1324 host_recv_notice_place_leave_method,
1325 host_recv_notice_place_leave_modifier,
1326 NULL, host_recv_notice_place_leave_eom, hst);
1328 size_t app_id_size = strlen (hconn->app->id) + 1;
1329 struct HostEnterRequest *hreq;
1330 plc->connect_env = GNUNET_MQ_msg_extra (hreq, app_id_size,
1331 GNUNET_MESSAGE_TYPE_SOCIAL_HOST_ENTER);
1332 hreq->place_pub_key = hconn->plc_msg.place_pub_key;
1333 hreq->ego_pub_key = hconn->plc_msg.ego_pub_key;
1334 GNUNET_memcpy (&hreq[1], hconn->app->id, app_id_size);
1342 * Decision whether to admit @a nym into the place or refuse entry.
1345 * Host of the place.
1347 * Handle for the entity that wanted to enter.
1348 * @param is_admitted
1349 * #GNUNET_YES if @a nym is admitted,
1350 * #GNUNET_NO if @a nym is refused entry,
1351 * #GNUNET_SYSERR if we cannot answer the request.
1352 * @param method_name
1353 * Method name for the rejection message.
1355 * Environment containing variables for the message, or NULL.
1357 * Data for the rejection message to send back.
1359 * Number of bytes in @a data for method.
1360 * @return #GNUNET_OK on success,
1361 * #GNUNET_SYSERR if the message is too large.
1364 GNUNET_SOCIAL_host_entry_decision (struct GNUNET_SOCIAL_Host *hst,
1365 struct GNUNET_SOCIAL_Nym *nym,
1367 const struct GNUNET_PSYC_Message *entry_resp)
1369 struct GNUNET_SOCIAL_Place *plc = &hst->plc;
1370 struct GNUNET_PSYC_JoinDecisionMessage *dcsn;
1371 uint16_t entry_resp_size
1372 = (NULL != entry_resp) ? ntohs (entry_resp->header.size) : 0;
1374 if (GNUNET_MULTICAST_FRAGMENT_MAX_PAYLOAD < sizeof (*dcsn) + entry_resp_size)
1375 return GNUNET_SYSERR;
1377 struct GNUNET_MQ_Envelope *
1378 env = GNUNET_MQ_msg_extra (dcsn, entry_resp_size,
1379 GNUNET_MESSAGE_TYPE_PSYC_JOIN_DECISION);
1380 dcsn->is_admitted = htonl (is_admitted);
1381 dcsn->slave_pub_key = nym->pub_key;
1383 if (0 < entry_resp_size)
1384 GNUNET_memcpy (&dcsn[1], entry_resp, entry_resp_size);
1386 GNUNET_MQ_send (plc->mq, env);
1392 * Throw @a nym out of the place.
1394 * The @a nym reference will remain valid until the
1395 * #GNUNET_SOCIAL_FarewellCallback is invoked,
1396 * which should be very soon after this call.
1399 * Host of the place.
1401 * Handle for the entity to be ejected.
1403 * Environment for the message or NULL.
1406 GNUNET_SOCIAL_host_eject (struct GNUNET_SOCIAL_Host *hst,
1407 const struct GNUNET_SOCIAL_Nym *nym,
1408 struct GNUNET_PSYC_Environment *e)
1410 struct GNUNET_PSYC_Environment *env = e;
1412 env = GNUNET_PSYC_env_create ();
1413 GNUNET_PSYC_env_add (env, GNUNET_PSYC_OP_SET,
1414 "_nym", &nym->pub_key, sizeof (nym->pub_key));
1415 GNUNET_SOCIAL_host_announce (hst, "_notice_place_leave", env, NULL, NULL,
1416 GNUNET_SOCIAL_ANNOUNCE_NONE);
1418 GNUNET_PSYC_env_destroy (env);
1423 * Get the public key of @a ego.
1428 * @return Public key of ego.
1430 const struct GNUNET_CRYPTO_EcdsaPublicKey *
1431 GNUNET_SOCIAL_ego_get_pub_key (const struct GNUNET_SOCIAL_Ego *ego)
1433 return &ego->pub_key;
1438 * Get the hash of the public key of @a ego.
1443 * @return Hash of the public key of @a ego.
1445 const struct GNUNET_HashCode *
1446 GNUNET_SOCIAL_ego_get_pub_key_hash (const struct GNUNET_SOCIAL_Ego *ego)
1448 return &ego->pub_key_hash;
1453 * Get the name of @a ego.
1458 * @return Public key of @a ego.
1461 GNUNET_SOCIAL_ego_get_name (const struct GNUNET_SOCIAL_Ego *ego)
1468 * Get the public key of @a nym.
1470 * Suitable, for example, to be used with GNUNET_SOCIAL_zone_add_nym().
1475 * @return Public key of @a nym.
1477 const struct GNUNET_CRYPTO_EcdsaPublicKey *
1478 GNUNET_SOCIAL_nym_get_pub_key (const struct GNUNET_SOCIAL_Nym *nym)
1480 return &nym->pub_key;
1485 * Get the hash of the public key of @a nym.
1490 * @return Hash of the public key of @a nym.
1492 const struct GNUNET_HashCode *
1493 GNUNET_SOCIAL_nym_get_pub_key_hash (const struct GNUNET_SOCIAL_Nym *nym)
1495 return &nym->pub_key_hash;
1500 * Send a message to all nyms that are present in the place.
1502 * This function is restricted to the host. Nyms can only send requests
1503 * to the host who can decide to relay it to everyone in the place.
1505 * @param host Host of the place.
1506 * @param method_name Method to use for the announcement.
1507 * @param env Environment containing variables for the message and operations
1508 * on objects of the place. Can be NULL.
1509 * @param notify Function to call to get the payload of the announcement.
1510 * @param notify_cls Closure for @a notify.
1511 * @param flags Flags for this announcement.
1513 * @return NULL on error (announcement already in progress?).
1515 struct GNUNET_SOCIAL_Announcement *
1516 GNUNET_SOCIAL_host_announce (struct GNUNET_SOCIAL_Host *hst,
1517 const char *method_name,
1518 const struct GNUNET_PSYC_Environment *env,
1519 GNUNET_PSYC_TransmitNotifyData notify_data,
1520 void *notify_data_cls,
1521 enum GNUNET_SOCIAL_AnnounceFlags flags)
1524 GNUNET_PSYC_transmit_message (hst->plc.tmit, method_name, env,
1525 NULL, notify_data, notify_data_cls, flags))
1526 return (struct GNUNET_SOCIAL_Announcement *) hst->plc.tmit;
1533 * Resume transmitting announcement.
1536 * The announcement to resume.
1539 GNUNET_SOCIAL_host_announce_resume (struct GNUNET_SOCIAL_Announcement *a)
1541 GNUNET_PSYC_transmit_resume ((struct GNUNET_PSYC_TransmitHandle *) a);
1546 * Cancel announcement.
1549 * The announcement to cancel.
1552 GNUNET_SOCIAL_host_announce_cancel (struct GNUNET_SOCIAL_Announcement *a)
1554 GNUNET_PSYC_transmit_cancel ((struct GNUNET_PSYC_TransmitHandle *) a);
1559 * Obtain handle for a hosted place.
1561 * The returned handle can be used to access the place API.
1563 * @param host Handle for the host.
1565 * @return Handle for the hosted place, valid as long as @a host is valid.
1567 struct GNUNET_SOCIAL_Place *
1568 GNUNET_SOCIAL_host_get_place (struct GNUNET_SOCIAL_Host *hst)
1575 * Disconnect from a home.
1577 * Invalidates host handle.
1580 * The host to disconnect.
1583 GNUNET_SOCIAL_host_disconnect (struct GNUNET_SOCIAL_Host *hst,
1584 GNUNET_ContinuationCallback disconnect_cb,
1587 struct GNUNET_SOCIAL_Place *plc = &hst->plc;
1589 plc->disconnect_cb = disconnect_cb;
1590 plc->disconnect_cls = cls;
1591 place_disconnect (plc);
1596 * Stop hosting the home.
1598 * Sends a _notice_place_closing announcement to the home.
1599 * Invalidates host handle.
1604 * Environment for the message or NULL.
1605 * _nym is set to @e nym regardless whether an @e env is provided.
1606 * @param disconnect_cb
1607 * Function called after the host left the place
1608 * and disconnected from the social service.
1610 * Closure for @a disconnect_cb.
1613 GNUNET_SOCIAL_host_leave (struct GNUNET_SOCIAL_Host *hst,
1614 const struct GNUNET_PSYC_Environment *env,
1615 GNUNET_ContinuationCallback disconnect_cb,
1618 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
1619 "GNUNET_SOCIAL_host_leave\n");
1620 GNUNET_SOCIAL_host_announce (hst, "_notice_place_closing", env, NULL, NULL,
1621 GNUNET_SOCIAL_ANNOUNCE_NONE);
1622 place_leave (&hst->plc);
1623 GNUNET_SOCIAL_host_disconnect (hst, disconnect_cb, cls);
1631 guest_connect (struct GNUNET_SOCIAL_Guest *gst);
1635 guest_reconnect (void *cls)
1637 guest_connect (cls);
1642 * Guest client disconnected from service.
1644 * Reconnect after backoff period.
1647 guest_disconnected (void *cls, enum GNUNET_MQ_Error error)
1649 struct GNUNET_SOCIAL_Guest *gst = cls;
1650 struct GNUNET_SOCIAL_Place *plc = &gst->plc;
1652 LOG (GNUNET_ERROR_TYPE_DEBUG,
1653 "Guest client disconnected (%d), re-connecting\n",
1655 if (NULL != plc->tmit)
1657 GNUNET_PSYC_transmit_destroy (plc->tmit);
1660 if (NULL != plc->mq)
1662 GNUNET_MQ_destroy (plc->mq);
1666 plc->reconnect_task = GNUNET_SCHEDULER_add_delayed (plc->reconnect_delay,
1669 plc->reconnect_delay = GNUNET_TIME_STD_BACKOFF (plc->reconnect_delay);
1674 guest_connect (struct GNUNET_SOCIAL_Guest *gst)
1676 struct GNUNET_SOCIAL_Place *plc = &gst->plc;
1678 struct GNUNET_MQ_MessageHandler handlers[] = {
1679 GNUNET_MQ_hd_fixed_size (guest_enter_ack,
1680 GNUNET_MESSAGE_TYPE_SOCIAL_GUEST_ENTER_ACK,
1681 struct GNUNET_PSYC_CountersResultMessage,
1683 GNUNET_MQ_hd_var_size (guest_enter_decision,
1684 GNUNET_MESSAGE_TYPE_PSYC_JOIN_DECISION,
1685 struct GNUNET_PSYC_JoinDecisionMessage,
1687 GNUNET_MQ_hd_var_size (place_message,
1688 GNUNET_MESSAGE_TYPE_PSYC_MESSAGE,
1689 struct GNUNET_PSYC_MessageHeader,
1691 GNUNET_MQ_hd_fixed_size (place_message_ack,
1692 GNUNET_MESSAGE_TYPE_PSYC_MESSAGE_ACK,
1693 struct GNUNET_MessageHeader,
1695 GNUNET_MQ_hd_var_size (place_history_result,
1696 GNUNET_MESSAGE_TYPE_PSYC_HISTORY_RESULT,
1697 struct GNUNET_OperationResultMessage,
1699 GNUNET_MQ_hd_var_size (place_state_result,
1700 GNUNET_MESSAGE_TYPE_PSYC_STATE_RESULT,
1701 struct GNUNET_OperationResultMessage,
1703 GNUNET_MQ_hd_var_size (place_result,
1704 GNUNET_MESSAGE_TYPE_PSYC_RESULT_CODE,
1705 struct GNUNET_OperationResultMessage,
1707 GNUNET_MQ_handler_end ()
1710 plc->mq = GNUNET_CLIENT_connect (plc->cfg, "social",
1711 handlers, guest_disconnected, gst);
1712 GNUNET_assert (NULL != plc->mq);
1713 plc->tmit = GNUNET_PSYC_transmit_create (plc->mq);
1715 GNUNET_MQ_send_copy (plc->mq, plc->connect_env);
1719 static struct GNUNET_MQ_Envelope *
1720 guest_enter_request_create (const char *app_id,
1721 const struct GNUNET_CRYPTO_EcdsaPublicKey *ego_pub_key,
1722 const struct GNUNET_CRYPTO_EddsaPublicKey *place_pub_key,
1723 const struct GNUNET_PeerIdentity *origin,
1725 const struct GNUNET_PeerIdentity *relays,
1726 const struct GNUNET_PSYC_Message *join_msg)
1728 uint16_t app_id_size = strlen (app_id) + 1;
1729 uint16_t join_msg_size = ntohs (join_msg->header.size);
1730 uint16_t relay_size = relay_count * sizeof (*relays);
1732 struct GuestEnterRequest *greq;
1733 struct GNUNET_MQ_Envelope *
1734 env = GNUNET_MQ_msg_extra (greq, app_id_size + relay_size + join_msg_size,
1735 GNUNET_MESSAGE_TYPE_SOCIAL_GUEST_ENTER);
1736 greq->place_pub_key = *place_pub_key;
1737 greq->ego_pub_key = *ego_pub_key;
1738 greq->origin = *origin;
1739 greq->relay_count = htonl (relay_count);
1741 char *p = (char *) &greq[1];
1742 GNUNET_memcpy (p, app_id, app_id_size);
1747 GNUNET_memcpy (p, relays, relay_size);
1751 GNUNET_memcpy (p, join_msg, join_msg_size);
1757 * Request entry to a place as a guest.
1760 * Application handle.
1762 * Identity of the guest.
1763 * @param place_pub_key
1764 * Public key of the place to enter.
1766 * Flags for the entry.
1768 * Peer identity of the origin of the underlying multicast group.
1769 * @param relay_count
1770 * Number of elements in the @a relays array.
1772 * Relays for the underlying multicast group.
1773 * @param method_name
1774 * Method name for the message.
1776 * Environment containing variables for the message, or NULL.
1778 * Payload for the message to give to the enter callback.
1780 * Number of bytes in @a data.
1782 * Slicer to use for processing incoming requests from guests.
1784 * @return NULL on errors, otherwise handle for the guest.
1786 struct GNUNET_SOCIAL_Guest *
1787 GNUNET_SOCIAL_guest_enter (const struct GNUNET_SOCIAL_App *app,
1788 const struct GNUNET_SOCIAL_Ego *ego,
1789 const struct GNUNET_CRYPTO_EddsaPublicKey *place_pub_key,
1790 enum GNUNET_PSYC_SlaveJoinFlags flags,
1791 const struct GNUNET_PeerIdentity *origin,
1792 uint32_t relay_count,
1793 const struct GNUNET_PeerIdentity *relays,
1794 const struct GNUNET_PSYC_Message *entry_msg,
1795 struct GNUNET_PSYC_Slicer *slicer,
1796 GNUNET_SOCIAL_GuestEnterCallback local_enter_cb,
1797 GNUNET_SOCIAL_EntryDecisionCallback entry_dcsn_cb,
1800 struct GNUNET_SOCIAL_Guest *gst = GNUNET_malloc (sizeof (*gst));
1801 struct GNUNET_SOCIAL_Place *plc = &gst->plc;
1803 plc->ego_pub_key = ego->pub_key;
1804 plc->pub_key = *place_pub_key;
1805 plc->cfg = app->cfg;
1806 plc->is_host = GNUNET_NO;
1807 plc->slicer = slicer;
1809 plc->op = GNUNET_OP_create ();
1812 = guest_enter_request_create (app->id, &ego->pub_key, &plc->pub_key,
1813 origin, relay_count, relays, entry_msg);
1815 gst->enter_cb = local_enter_cb;
1816 gst->entry_dcsn_cb = entry_dcsn_cb;
1819 guest_connect (gst);
1825 * Request entry to a place by name as a guest.
1828 * Application handle.
1830 * Identity of the guest.
1832 * GNS name of the place to enter. Either in the form of
1833 * 'room.friend.gnu', or 'NYMPUBKEY.zkey'. This latter case refers to
1834 * the 'PLACE' record of the empty label ("+") in the GNS zone with the
1835 * nym's public key 'NYMPUBKEY', and can be used to request entry to a
1836 * pseudonym's place directly.
1838 * Password to decrypt the record, or NULL for cleartext records.
1840 * Entry request message or NULL.
1842 * Slicer to use for processing incoming requests from guests.
1843 * @param local_enter_cb
1844 * Called upon connection established to the social service.
1845 * @param entry_decision_cb
1846 * Called upon receiving entry decision.
1848 * @return NULL on errors, otherwise handle for the guest.
1850 struct GNUNET_SOCIAL_Guest *
1851 GNUNET_SOCIAL_guest_enter_by_name (const struct GNUNET_SOCIAL_App *app,
1852 const struct GNUNET_SOCIAL_Ego *ego,
1853 const char *gns_name,
1854 const char *password,
1855 const struct GNUNET_PSYC_Message *join_msg,
1856 struct GNUNET_PSYC_Slicer *slicer,
1857 GNUNET_SOCIAL_GuestEnterCallback local_enter_cb,
1858 GNUNET_SOCIAL_EntryDecisionCallback entry_decision_cb,
1861 struct GNUNET_SOCIAL_Guest *gst = GNUNET_malloc (sizeof (*gst));
1862 struct GNUNET_SOCIAL_Place *plc = &gst->plc;
1864 if (NULL == password)
1867 uint16_t app_id_size = strlen (app->id) + 1;
1868 uint16_t gns_name_size = strlen (gns_name) + 1;
1869 uint16_t password_size = strlen (password) + 1;
1871 uint16_t join_msg_size = 0;
1872 if (NULL != join_msg)
1873 join_msg_size = ntohs (join_msg->header.size);
1875 struct GuestEnterByNameRequest *greq;
1877 = GNUNET_MQ_msg_extra (greq, app_id_size + gns_name_size
1878 + password_size + join_msg_size,
1879 GNUNET_MESSAGE_TYPE_SOCIAL_GUEST_ENTER_BY_NAME);
1881 greq->ego_pub_key = ego->pub_key;
1883 char *p = (char *) &greq[1];
1884 GNUNET_memcpy (p, app->id, app_id_size);
1886 GNUNET_memcpy (p, gns_name, gns_name_size);
1888 GNUNET_memcpy (p, password, password_size);
1890 if (NULL != join_msg)
1891 GNUNET_memcpy (p, join_msg, join_msg_size);
1893 plc->ego_pub_key = ego->pub_key;
1894 plc->cfg = app->cfg;
1895 plc->is_host = GNUNET_NO;
1896 plc->slicer = slicer;
1898 plc->op = GNUNET_OP_create ();
1900 gst->enter_cb = local_enter_cb;
1901 gst->entry_dcsn_cb = entry_decision_cb;
1904 guest_connect (gst);
1910 * Reconnect to an already entered place as guest.
1913 * Guest connection handle.
1914 * @see GNUNET_SOCIAL_app_connect() & GNUNET_SOCIAL_AppGuestPlaceCallback()
1916 * Flags for the entry.
1918 * Slicer to use for processing incoming requests from guests.
1919 * @param local_enter_cb
1920 * Called upon connection established to the social service.
1921 * @param entry_decision_cb
1922 * Called upon receiving entry decision.
1924 * @return NULL on errors, otherwise handle for the guest.
1926 struct GNUNET_SOCIAL_Guest *
1927 GNUNET_SOCIAL_guest_enter_reconnect (struct GNUNET_SOCIAL_GuestConnection *gconn,
1928 enum GNUNET_PSYC_SlaveJoinFlags flags,
1929 struct GNUNET_PSYC_Slicer *slicer,
1930 GNUNET_SOCIAL_GuestEnterCallback local_enter_cb,
1933 struct GNUNET_SOCIAL_Guest *gst = GNUNET_malloc (sizeof (*gst));
1934 struct GNUNET_SOCIAL_Place *plc = &gst->plc;
1936 uint16_t app_id_size = strlen (gconn->app->id) + 1;
1937 struct GuestEnterRequest *greq;
1939 = GNUNET_MQ_msg_extra (greq, app_id_size,
1940 GNUNET_MESSAGE_TYPE_SOCIAL_GUEST_ENTER);
1941 greq->ego_pub_key = gconn->plc_msg.ego_pub_key;
1942 greq->place_pub_key = gconn->plc_msg.place_pub_key;
1943 greq->flags = htonl (flags);
1945 GNUNET_memcpy (&greq[1], gconn->app->id, app_id_size);
1947 plc->cfg = gconn->app->cfg;
1948 plc->is_host = GNUNET_NO;
1949 plc->slicer = slicer;
1950 plc->pub_key = gconn->plc_msg.place_pub_key;
1951 plc->ego_pub_key = gconn->plc_msg.ego_pub_key;
1953 plc->op = GNUNET_OP_create ();
1955 gst->enter_cb = local_enter_cb;
1958 guest_connect (gst);
1964 * Talk to the host of the place.
1967 * Place where we want to talk to the host.
1968 * @param method_name
1969 * Method to invoke on the host.
1971 * Environment containing variables for the message, or NULL.
1972 * @param notify_data
1973 * Function to use to get the payload for the method.
1974 * @param notify_data_cls
1975 * Closure for @a notify_data.
1977 * Flags for the message being sent.
1979 * @return NULL if we are already trying to talk to the host,
1980 * otherwise handle to cancel the request.
1982 struct GNUNET_SOCIAL_TalkRequest *
1983 GNUNET_SOCIAL_guest_talk (struct GNUNET_SOCIAL_Guest *gst,
1984 const char *method_name,
1985 const struct GNUNET_PSYC_Environment *env,
1986 GNUNET_PSYC_TransmitNotifyData notify_data,
1987 void *notify_data_cls,
1988 enum GNUNET_SOCIAL_TalkFlags flags)
1990 struct GNUNET_SOCIAL_Place *plc = &gst->plc;
1991 GNUNET_assert (NULL != plc->tmit);
1994 GNUNET_PSYC_transmit_message (plc->tmit, method_name, env,
1995 NULL, notify_data, notify_data_cls, flags))
1996 return (struct GNUNET_SOCIAL_TalkRequest *) plc->tmit;
2003 * Resume talking to the host of the place.
2006 * Talk request to resume.
2009 GNUNET_SOCIAL_guest_talk_resume (struct GNUNET_SOCIAL_TalkRequest *tr)
2011 GNUNET_PSYC_transmit_resume ((struct GNUNET_PSYC_TransmitHandle *) tr);
2016 * Cancel talking to the host of the place.
2019 * Talk request to cancel.
2022 GNUNET_SOCIAL_guest_talk_cancel (struct GNUNET_SOCIAL_TalkRequest *tr)
2024 GNUNET_PSYC_transmit_cancel ( (struct GNUNET_PSYC_TransmitHandle *) tr);
2029 * Disconnect from a place.
2031 * Invalidates guest handle.
2034 * The guest to disconnect.
2037 GNUNET_SOCIAL_guest_disconnect (struct GNUNET_SOCIAL_Guest *gst,
2038 GNUNET_ContinuationCallback disconnect_cb,
2041 struct GNUNET_SOCIAL_Place *plc = &gst->plc;
2043 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
2044 "GNUNET_SOCIAL_guest_disconnect, gst = %p\n",
2046 plc->disconnect_cb = disconnect_cb;
2047 plc->disconnect_cls = cls;
2048 place_disconnect (plc);
2053 * Leave a place temporarily or permanently.
2055 * Notifies the owner of the place about leaving, and destroys the place handle.
2059 * @param keep_active
2060 * Keep place active after last application disconnected.
2061 * #GNUNET_YES or #GNUNET_NO
2063 * Optional environment for the leave message if @a keep_active
2064 * is #GNUNET_NO. NULL if not needed.
2066 * Called upon disconnecting from the social service.
2069 GNUNET_SOCIAL_guest_leave (struct GNUNET_SOCIAL_Guest *gst,
2070 struct GNUNET_PSYC_Environment *env,
2071 GNUNET_ContinuationCallback disconnect_cb,
2074 GNUNET_SOCIAL_guest_talk (gst, "_notice_place_leave", env, NULL, NULL,
2075 GNUNET_SOCIAL_TALK_NONE);
2076 place_leave (&gst->plc);
2077 GNUNET_SOCIAL_guest_disconnect (gst, disconnect_cb, cls);
2082 * Obtain handle for a place entered as guest.
2084 * The returned handle can be used to access the place API.
2086 * @param guest Handle for the guest.
2088 * @return Handle for the place, valid as long as @a guest is valid.
2090 struct GNUNET_SOCIAL_Place *
2091 GNUNET_SOCIAL_guest_get_place (struct GNUNET_SOCIAL_Guest *gst)
2098 * Obtain the public key of a place.
2103 * @return Public key of the place.
2105 const struct GNUNET_CRYPTO_EddsaPublicKey *
2106 GNUNET_SOCIAL_place_get_pub_key (const struct GNUNET_SOCIAL_Place *plc)
2108 return &plc->pub_key;
2113 * Set message processing @a flags for a @a method_prefix.
2117 * @param method_prefix
2118 * Method prefix @a flags apply to.
2120 * The flags that apply to a matching @a method_prefix.
2123 GNUNET_SOCIAL_place_msg_proc_set (struct GNUNET_SOCIAL_Place *plc,
2124 const char *method_prefix,
2125 enum GNUNET_SOCIAL_MsgProcFlags flags)
2127 GNUNET_assert (NULL != method_prefix);
2128 struct MsgProcRequest *mpreq;
2129 uint16_t method_size = strnlen (method_prefix,
2130 GNUNET_MAX_MESSAGE_SIZE
2131 - sizeof (*mpreq)) + 1;
2132 GNUNET_assert ('\0' == method_prefix[method_size - 1]);
2134 struct GNUNET_MQ_Envelope *
2135 env = GNUNET_MQ_msg_extra (mpreq, method_size,
2136 GNUNET_MESSAGE_TYPE_SOCIAL_MSG_PROC_SET);
2137 mpreq->flags = htonl (flags);
2138 GNUNET_memcpy (&mpreq[1], method_prefix, method_size);
2140 GNUNET_MQ_send (plc->mq, env);
2145 * Clear all message processing flags previously set for this place.
2148 GNUNET_SOCIAL_place_msg_proc_clear (struct GNUNET_SOCIAL_Place *plc)
2150 struct GNUNET_MessageHeader *req;
2151 struct GNUNET_MQ_Envelope *
2152 env = GNUNET_MQ_msg (req, GNUNET_MESSAGE_TYPE_SOCIAL_MSG_PROC_CLEAR);
2154 GNUNET_MQ_send (plc->mq, env);
2158 static struct GNUNET_SOCIAL_HistoryRequest *
2159 place_history_replay (struct GNUNET_SOCIAL_Place *plc,
2160 uint64_t start_message_id,
2161 uint64_t end_message_id,
2162 uint64_t message_limit,
2163 const char *method_prefix,
2165 struct GNUNET_PSYC_Slicer *slicer,
2166 GNUNET_ResultCallback result_cb,
2169 struct GNUNET_PSYC_HistoryRequestMessage *req;
2170 struct GNUNET_SOCIAL_HistoryRequest *hist = GNUNET_malloc (sizeof (*hist));
2172 hist->slicer = slicer;
2173 hist->result_cb = result_cb;
2175 hist->op_id = GNUNET_OP_add (plc->op, op_recv_history_result, hist, NULL);
2177 GNUNET_assert (NULL != method_prefix);
2178 uint16_t method_size = strnlen (method_prefix,
2179 GNUNET_MAX_MESSAGE_SIZE
2180 - sizeof (*req)) + 1;
2181 GNUNET_assert ('\0' == method_prefix[method_size - 1]);
2183 struct GNUNET_MQ_Envelope *
2184 env = GNUNET_MQ_msg_extra (req, method_size,
2185 GNUNET_MESSAGE_TYPE_PSYC_HISTORY_REPLAY);
2186 req->start_message_id = GNUNET_htonll (start_message_id);
2187 req->end_message_id = GNUNET_htonll (end_message_id);
2188 req->message_limit = GNUNET_htonll (message_limit);
2189 req->flags = htonl (flags);
2190 req->op_id = GNUNET_htonll (hist->op_id);
2191 GNUNET_memcpy (&req[1], method_prefix, method_size);
2193 GNUNET_MQ_send (plc->mq, env);
2199 * Learn about the history of a place.
2201 * Messages are returned through the @a slicer function
2202 * and have the #GNUNET_PSYC_MESSAGE_HISTORIC flag set.
2205 * Place we want to learn more about.
2206 * @param start_message_id
2207 * First historic message we are interested in.
2208 * @param end_message_id
2209 * Last historic message we are interested in (inclusive).
2210 * @param method_prefix
2211 * Only retrieve messages with this method prefix.
2213 * OR'ed GNUNET_PSYC_HistoryReplayFlags
2215 * Slicer to use for retrieved messages.
2216 * Can be the same as the slicer of the place.
2218 * Function called after all messages retrieved.
2219 * NULL if not needed.
2220 * @param cls Closure for @a result_cb.
2222 struct GNUNET_SOCIAL_HistoryRequest *
2223 GNUNET_SOCIAL_place_history_replay (struct GNUNET_SOCIAL_Place *plc,
2224 uint64_t start_message_id,
2225 uint64_t end_message_id,
2226 const char *method_prefix,
2228 struct GNUNET_PSYC_Slicer *slicer,
2229 GNUNET_ResultCallback result_cb,
2232 return place_history_replay (plc, start_message_id, end_message_id, 0,
2233 method_prefix, flags, slicer, result_cb, cls);
2238 * Learn about the history of a place.
2240 * Sends messages through the slicer function of the place where
2241 * start_message_id <= message_id <= end_message_id.
2242 * The messages will have the #GNUNET_PSYC_MESSAGE_HISTORIC flag set.
2244 * To get the latest message, use 0 for both the start and end message ID.
2247 * Place we want to learn more about.
2248 * @param message_limit
2249 * Maximum number of historic messages we are interested in.
2250 * @param method_prefix
2251 * Only retrieve messages with this method prefix.
2253 * OR'ed GNUNET_PSYC_HistoryReplayFlags
2255 * Function called after all messages retrieved.
2256 * NULL if not needed.
2257 * @param cls Closure for @a result_cb.
2259 struct GNUNET_SOCIAL_HistoryRequest *
2260 GNUNET_SOCIAL_place_history_replay_latest (struct GNUNET_SOCIAL_Place *plc,
2261 uint64_t message_limit,
2262 const char *method_prefix,
2264 struct GNUNET_PSYC_Slicer *slicer,
2265 GNUNET_ResultCallback result_cb,
2268 return place_history_replay (plc, 0, 0, message_limit, method_prefix, flags,
2269 slicer, result_cb, cls);
2274 * Cancel learning about the history of a place.
2277 * History lesson to cancel.
2280 GNUNET_SOCIAL_place_history_replay_cancel (struct GNUNET_SOCIAL_HistoryRequest *hist)
2282 GNUNET_OP_remove (hist->plc->op, hist->op_id);
2288 * Request matching state variables.
2290 static struct GNUNET_SOCIAL_LookHandle *
2291 place_state_get (struct GNUNET_SOCIAL_Place *plc,
2292 uint16_t type, const char *name,
2293 GNUNET_PSYC_StateVarCallback var_cb,
2294 GNUNET_ResultCallback result_cb, void *cls)
2296 struct GNUNET_PSYC_StateRequestMessage *req;
2297 struct GNUNET_SOCIAL_LookHandle *look = GNUNET_malloc (sizeof (*look));
2299 look->var_cb = var_cb;
2300 look->result_cb = result_cb;
2302 look->op_id = GNUNET_OP_add (plc->op, &op_recv_state_result, look, NULL);
2304 GNUNET_assert (NULL != name);
2305 size_t name_size = strnlen (name, GNUNET_MAX_MESSAGE_SIZE
2306 - sizeof (*req)) + 1;
2307 struct GNUNET_MQ_Envelope *
2308 env = GNUNET_MQ_msg_extra (req, name_size, type);
2309 req->op_id = GNUNET_htonll (look->op_id);
2310 GNUNET_memcpy (&req[1], name, name_size);
2312 GNUNET_MQ_send (plc->mq, env);
2318 * Look at a particular object in the place.
2320 * The best matching object is returned (its name might be less specific than
2321 * what was requested).
2324 * The place where to look.
2326 * Full name of the object.
2328 * Set to the size of the returned value.
2330 * @return NULL if there is no such object at this place.
2332 struct GNUNET_SOCIAL_LookHandle *
2333 GNUNET_SOCIAL_place_look_at (struct GNUNET_SOCIAL_Place *plc,
2334 const char *full_name,
2335 GNUNET_PSYC_StateVarCallback var_cb,
2336 GNUNET_ResultCallback result_cb,
2339 return place_state_get (plc, GNUNET_MESSAGE_TYPE_PSYC_STATE_GET,
2340 full_name, var_cb, result_cb, cls);
2345 * Look for objects in the place with a matching name prefix.
2348 * The place where to look.
2349 * @param name_prefix
2350 * Look at objects with names beginning with this value.
2352 * Function to call for each object found.
2354 * Closure for callback function.
2356 * @return Handle that can be used to stop looking at objects.
2358 struct GNUNET_SOCIAL_LookHandle *
2359 GNUNET_SOCIAL_place_look_for (struct GNUNET_SOCIAL_Place *plc,
2360 const char *name_prefix,
2361 GNUNET_PSYC_StateVarCallback var_cb,
2362 GNUNET_ResultCallback result_cb,
2365 return place_state_get (plc, GNUNET_MESSAGE_TYPE_PSYC_STATE_GET_PREFIX,
2366 name_prefix, var_cb, result_cb, cls);
2371 * Cancel a state request operation.
2374 * Handle for the operation to cancel.
2377 GNUNET_SOCIAL_place_look_cancel (struct GNUNET_SOCIAL_LookHandle *look)
2379 GNUNET_OP_remove (look->plc->op, look->op_id);
2385 op_recv_zone_add_place_result (void *cls, int64_t result,
2386 const void *err_msg, uint16_t err_msg_size)
2388 LOG (GNUNET_ERROR_TYPE_DEBUG,
2389 "Received zone add place result: %" PRId64 ".\n", result);
2391 struct ZoneAddPlaceHandle *add_plc = cls;
2392 if (NULL != add_plc->result_cb)
2393 add_plc->result_cb (add_plc->result_cls, result, err_msg, err_msg_size);
2395 GNUNET_free (add_plc);
2400 * Advertise @e place in the GNS zone of @e ego.
2403 * Application handle.
2406 * @param place_pub_key
2407 * Public key of place to add.
2409 * The name for the PLACE record to put in the zone.
2411 * Password used to encrypt the record or NULL to keep it cleartext.
2412 * @param relay_count
2413 * Number of elements in the @a relays array.
2415 * List of relays to put in the PLACE record to advertise
2416 * as entry points to the place in addition to the origin.
2417 * @param expiration_time
2418 * Expiration time of the record, use 0 to remove the record.
2420 * Function called with the result of the operation.
2422 * Closure for @a result_cb
2424 * @return #GNUNET_OK if the request was sent,
2425 * #GNUNET_SYSERR on error, e.g. the name/password is too long.
2428 GNUNET_SOCIAL_zone_add_place (const struct GNUNET_SOCIAL_App *app,
2429 const struct GNUNET_SOCIAL_Ego *ego,
2431 const char *password,
2432 const struct GNUNET_CRYPTO_EddsaPublicKey *place_pub_key,
2433 const struct GNUNET_PeerIdentity *origin,
2434 uint32_t relay_count,
2435 const struct GNUNET_PeerIdentity *relays,
2436 struct GNUNET_TIME_Absolute expiration_time,
2437 GNUNET_ResultCallback result_cb,
2440 struct ZoneAddPlaceRequest *preq;
2441 size_t name_size = strlen (name) + 1;
2442 size_t password_size = strlen (password) + 1;
2443 size_t relay_size = relay_count * sizeof (*relays);
2444 size_t payload_size = name_size + password_size + relay_size;
2446 if (GNUNET_MAX_MESSAGE_SIZE < sizeof (*preq) + payload_size)
2447 return GNUNET_SYSERR;
2449 struct GNUNET_MQ_Envelope *
2450 env = GNUNET_MQ_msg_extra (preq, payload_size,
2451 GNUNET_MESSAGE_TYPE_SOCIAL_ZONE_ADD_PLACE);
2452 preq->expiration_time = GNUNET_htonll (expiration_time.abs_value_us);
2453 preq->ego_pub_key = ego->pub_key;
2454 preq->place_pub_key = *place_pub_key;
2455 preq->origin = *origin;
2456 preq->relay_count = htonl (relay_count);
2458 char *p = (char *) &preq[1];
2459 GNUNET_memcpy (p, name, name_size);
2461 GNUNET_memcpy (p, password, password_size);
2463 GNUNET_memcpy (p, relays, relay_size);
2465 struct ZoneAddPlaceHandle * add_plc = GNUNET_malloc (sizeof (*add_plc));
2466 add_plc->result_cb = result_cb;
2467 add_plc->result_cls = result_cls;
2469 preq->op_id = GNUNET_htonll (GNUNET_OP_add (app->op,
2470 op_recv_zone_add_place_result,
2473 GNUNET_MQ_send (app->mq, env);
2479 op_recv_zone_add_nym_result (void *cls, int64_t result,
2480 const void *err_msg, uint16_t err_msg_size)
2482 LOG (GNUNET_ERROR_TYPE_DEBUG,
2483 "Received zone add nym result: %" PRId64 ".\n", result);
2485 struct ZoneAddNymHandle *add_nym = cls;
2486 if (NULL != add_nym->result_cb)
2487 add_nym->result_cb (add_nym->result_cls, result, err_msg, err_msg_size);
2489 GNUNET_free (add_nym);
2494 * Add nym to the GNS zone of @e ego.
2501 * The name for the PKEY record to put in the zone.
2502 * @param nym_pub_key
2503 * Public key of nym to add.
2504 * @param expiration_time
2505 * Expiration time of the record, use 0 to remove the record.
2507 * Function called with the result of the operation.
2509 * Closure for @a result_cb
2511 * @return #GNUNET_OK if the request was sent,
2512 * #GNUNET_SYSERR on error, e.g. the name is too long.
2515 GNUNET_SOCIAL_zone_add_nym (const struct GNUNET_SOCIAL_App *app,
2516 const struct GNUNET_SOCIAL_Ego *ego,
2518 const struct GNUNET_CRYPTO_EcdsaPublicKey *nym_pub_key,
2519 struct GNUNET_TIME_Absolute expiration_time,
2520 GNUNET_ResultCallback result_cb,
2523 struct ZoneAddNymRequest *nreq;
2525 size_t name_size = strlen (name) + 1;
2526 if (GNUNET_MAX_MESSAGE_SIZE < sizeof (*nreq) + name_size)
2527 return GNUNET_SYSERR;
2529 struct GNUNET_MQ_Envelope *
2530 env = GNUNET_MQ_msg_extra (nreq, name_size,
2531 GNUNET_MESSAGE_TYPE_SOCIAL_ZONE_ADD_NYM);
2532 nreq->expiration_time = GNUNET_htonll (expiration_time.abs_value_us);
2533 nreq->ego_pub_key = ego->pub_key;
2534 nreq->nym_pub_key = *nym_pub_key;
2535 GNUNET_memcpy (&nreq[1], name, name_size);
2537 struct ZoneAddNymHandle *add_nym = GNUNET_malloc (sizeof (*add_nym));
2538 add_nym->result_cb = result_cb;
2539 add_nym->result_cls = result_cls;
2541 nreq->op_id = GNUNET_htonll (GNUNET_OP_add (app->op,
2542 op_recv_zone_add_nym_result,
2545 GNUNET_MQ_send (app->mq, env);
2554 app_connect (struct GNUNET_SOCIAL_App *app);
2558 app_reconnect (void *cls)
2565 * App client disconnected from service.
2567 * Reconnect after backoff period.
2570 app_disconnected (void *cls, enum GNUNET_MQ_Error error)
2572 struct GNUNET_SOCIAL_App *app = cls;
2574 LOG (GNUNET_ERROR_TYPE_DEBUG,
2575 "App client disconnected (%d), re-connecting\n",
2577 if (NULL != app->mq)
2579 GNUNET_MQ_destroy (app->mq);
2583 app->reconnect_task = GNUNET_SCHEDULER_add_delayed (app->reconnect_delay,
2586 app->reconnect_delay = GNUNET_TIME_STD_BACKOFF (app->reconnect_delay);
2591 app_connect (struct GNUNET_SOCIAL_App *app)
2593 struct GNUNET_MQ_MessageHandler handlers[] = {
2594 GNUNET_MQ_hd_var_size (app_ego,
2595 GNUNET_MESSAGE_TYPE_SOCIAL_APP_EGO,
2596 struct AppEgoMessage,
2598 GNUNET_MQ_hd_fixed_size (app_ego_end,
2599 GNUNET_MESSAGE_TYPE_SOCIAL_APP_EGO_END,
2600 struct GNUNET_MessageHeader,
2602 GNUNET_MQ_hd_var_size (app_place,
2603 GNUNET_MESSAGE_TYPE_SOCIAL_APP_PLACE,
2604 struct AppPlaceMessage,
2606 GNUNET_MQ_hd_fixed_size (app_place_end,
2607 GNUNET_MESSAGE_TYPE_SOCIAL_APP_PLACE_END,
2608 struct GNUNET_MessageHeader,
2610 GNUNET_MQ_hd_var_size (app_result,
2611 GNUNET_MESSAGE_TYPE_PSYC_RESULT_CODE,
2612 struct GNUNET_OperationResultMessage,
2614 GNUNET_MQ_handler_end ()
2617 app->mq = GNUNET_CLIENT_connect (app->cfg, "social",
2618 handlers, app_disconnected, app);
2619 GNUNET_assert (NULL != app->mq);
2620 GNUNET_MQ_send_copy (app->mq, app->connect_env);
2625 * Connect application to the social service.
2627 * The @host_place_cb and @guest_place_cb functions are
2628 * initially called for each entered places,
2629 * then later each time a new place is entered with the current application ID.
2636 * Function to notify about an available ego.
2638 * Function to notify about a place entered as host.
2640 * Function to notify about a place entered as guest.
2642 * Closure for the callbacks.
2644 * @return Handle that can be used to stop listening.
2646 struct GNUNET_SOCIAL_App *
2647 GNUNET_SOCIAL_app_connect (const struct GNUNET_CONFIGURATION_Handle *cfg,
2649 GNUNET_SOCIAL_AppEgoCallback ego_cb,
2650 GNUNET_SOCIAL_AppHostPlaceCallback host_cb,
2651 GNUNET_SOCIAL_AppGuestPlaceCallback guest_cb,
2652 GNUNET_SOCIAL_AppConnectedCallback connected_cb,
2655 uint16_t app_id_size = strnlen (id, GNUNET_SOCIAL_APP_MAX_ID_SIZE);
2656 if (GNUNET_SOCIAL_APP_MAX_ID_SIZE == app_id_size)
2660 struct GNUNET_SOCIAL_App *app = GNUNET_malloc (sizeof *app);
2662 app->ego_cb = ego_cb;
2663 app->host_cb = host_cb;
2664 app->guest_cb = guest_cb;
2665 app->connected_cb = connected_cb;
2667 app->egos = GNUNET_CONTAINER_multihashmap_create (1, GNUNET_NO);
2668 app->op = GNUNET_OP_create ();
2669 app->id = GNUNET_malloc (app_id_size);
2670 GNUNET_memcpy (app->id, id, app_id_size);
2672 struct AppConnectRequest *creq;
2673 app->connect_env = GNUNET_MQ_msg_extra (creq, app_id_size,
2674 GNUNET_MESSAGE_TYPE_SOCIAL_APP_CONNECT);
2675 GNUNET_memcpy (&creq[1], app->id, app_id_size);
2683 app_cleanup (struct GNUNET_SOCIAL_App *app)
2685 if (NULL != app->mq)
2687 GNUNET_MQ_destroy (app->mq);
2690 if (NULL != app->disconnect_cb)
2692 app->disconnect_cb (app->disconnect_cls);
2693 app->disconnect_cb = NULL;
2699 * Disconnect application.
2702 * Application handle.
2703 * @param disconnect_cb
2704 * Disconnect callback.
2705 * @param disconnect_cls
2706 * Disconnect closure.
2709 GNUNET_SOCIAL_app_disconnect (struct GNUNET_SOCIAL_App *app,
2710 GNUNET_ContinuationCallback disconnect_cb,
2711 void *disconnect_cls)
2713 app->disconnect_cb = disconnect_cb;
2714 app->disconnect_cls = disconnect_cls;
2716 if (NULL != app->mq)
2718 struct GNUNET_MQ_Envelope *env = GNUNET_MQ_get_last_envelope (app->mq);
2721 GNUNET_MQ_notify_sent (env, (GNUNET_SCHEDULER_TaskCallback) app_cleanup, app);
2736 * Detach application from a place.
2738 * Removes the place from the entered places list for this application.
2739 * Note: this does not disconnect from the place.
2741 * @see GNUNET_SOCIAL_host_disconnect() and GNUNET_SOCIAL_guest_disconnect()
2749 GNUNET_SOCIAL_app_detach (struct GNUNET_SOCIAL_App *app,
2750 struct GNUNET_SOCIAL_Place *plc)
2752 struct AppDetachRequest *dreq;
2753 struct GNUNET_MQ_Envelope *
2754 env = GNUNET_MQ_msg (dreq, GNUNET_MESSAGE_TYPE_SOCIAL_APP_DETACH);
2755 dreq->place_pub_key = plc->pub_key;
2756 dreq->ego_pub_key = plc->ego_pub_key;
2758 GNUNET_MQ_send (app->mq, env);
2762 /* end of social_api.c */