/*
- This file is part of GNUnet.
- (C)
-
- GNUnet is free software; you can redistribute it and/or modify
- it under the terms of the GNU General Public License as published
- by the Free Software Foundation; either version 3, or (at your
- option) any later version.
-
- GNUnet is distributed in the hope that it will be useful, but
- WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- General Public License for more details.
-
- You should have received a copy of the GNU General Public License
- along with GNUnet; see the file COPYING. If not, write to the
- Free Software Foundation, InGNUNET_SERVERc., 59 Temple Place - Suite 330,
- Boston, MA 02111-1307, USA.
-*/
+ This file is part of GNUnet.
+ (C) 2013 Christian Grothoff (and other contributing authors)
+
+ GNUnet is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published
+ by the Free Software Foundation; either version 3, or (at your
+ option) any later version.
+
+ GNUnet is distributed in the hope that it will be useful, but
+ WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ General Public License for more details.
+ You should have received a copy of the GNU General Public License
+ along with GNUnet; see the file COPYING. If not, write to the
+ Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ Boston, MA 02111-1307, USA.
+*/
/**
* @file conversation/gnunet-conversation.c
* @brief conversation implementation
* @author Simon Dieterle
* @author Andreas Fuchs
*/
-#include <gnunet/platform.h>
-#include <gnunet/gnunet_constants.h>
-#include <gnunet/gnunet_util_lib.h>
+#include "platform.h"
+#include "gnunet_util_lib.h"
+#include "gnunet_constants.h"
+#include "gnunet_gnsrecord_lib.h"
#include "gnunet_conversation_service.h"
-#include <fcntl.h>
+#include "gnunet_namestore_service.h"
-#define MAX_MESSAGE_LENGTH (32 * 1024)
/**
-* CONVERSATION handle
-*/
-struct GNUNET_CONVERSATION_Handle *conversation = NULL;
+ * Maximum length allowed for the command line input.
+ */
+#define MAX_MESSAGE_LENGTH 1024
+
/**
-* Task which handles the commands
-*/
-static GNUNET_SCHEDULER_TaskIdentifier handle_cmd_task;
+ * Possible states of the phone.
+ */
+enum PhoneState
+{
+ /**
+ * We're waiting for our own idenitty.
+ */
+ PS_LOOKUP_EGO,
+
+ /**
+ * We're listening for calls
+ */
+ PS_LISTEN,
+
+ /**
+ * We accepted an incoming phone call.
+ */
+ PS_ACCEPTED,
+
+ /**
+ * Internal error
+ */
+ PS_ERROR
+};
+
/**
-* Function declareation for executing a action
-*/
-typedef int (*ActionFunction) (const char *argumetns, const void *xtra);
+ * States for current outgoing call.
+ */
+enum CallState
+{
+ /**
+ * We are looking up some other participant.
+ */
+ CS_RESOLVING,
+
+ /**
+ * We are now ringing the other participant.
+ */
+ CS_RINGING,
+
+ /**
+ * The other party accepted our call and we are now connected.
+ */
+ CS_CONNECTED,
+
+ /**
+ * The call is currently suspended (by us).
+ */
+ CS_SUSPENDED
+
+};
+
+
/**
-* Structure which defines a command
-*/
-struct VoipCommand
+ * List of incoming calls
+ */
+struct CallList
{
- const char *command;
- ActionFunction Action;
- const char *helptext;
+
+ /**
+ * A DLL.
+ */
+ struct CallList *prev;
+
+ /**
+ * A DLL.
+ */
+ struct CallList *next;
+
+ /**
+ * Handle to hang up or activate.
+ */
+ struct GNUNET_CONVERSATION_Caller *caller;
+
+ /**
+ * String identifying the caller.
+ */
+ char *caller_id;
+
+ /**
+ * Unique number of the call.
+ */
+ unsigned int caller_num;
+
};
-/******************************************************************************/
-/*********************** DECLARATIONS *************************/
-/******************************************************************************/
-static int do_help (const char *args, const void *xtra);
-/******************************************************************************/
-/*********************** Functions *************************/
-/******************************************************************************/
+/**
+ * Phone handle
+ */
+static struct GNUNET_CONVERSATION_Phone *phone;
+
+/**
+ * Call handle (for active outgoing call).
+ */
+static struct GNUNET_CONVERSATION_Call *call;
+/**
+ * Caller handle (for active incoming call).
+ */
+static struct CallList *cl_active;
+
+/**
+ * Head of calls waiting to be accepted.
+ */
+static struct CallList *cl_head;
+
+/**
+ * Tail of calls waiting to be accepted.
+ */
+static struct CallList *cl_tail;
+
+/**
+ * Desired phone line.
+ */
+static unsigned int line;
+
+/**
+ * Task which handles the commands
+ */
+static GNUNET_SCHEDULER_TaskIdentifier handle_cmd_task;
+
+/**
+ * Our speaker.
+ */
+static struct GNUNET_SPEAKER_Handle *speaker;
+
+/**
+ * Our microphone.
+ */
+static struct GNUNET_MICROPHONE_Handle *mic;
+
+/**
+ * Our configuration.
+ */
+static struct GNUNET_CONFIGURATION_Handle *cfg;
/**
- * Method called whenever a call is incoming
+ * Our ego.
+ */
+static struct GNUNET_IDENTITY_Ego *caller_id;
+
+/**
+ * Handle to identity service.
+ */
+static struct GNUNET_IDENTITY_Handle *id;
+
+/**
+ * Name of our ego.
+ */
+static char *ego_name;
+
+/**
+ * Name of conversation partner (if any).
+ */
+static char *peer_name;
+
+/**
+ * File handle for stdin.
+ */
+static struct GNUNET_DISK_FileHandle *stdin_fh;
+
+/**
+ * Our phone's current state.
+ */
+static enum PhoneState phone_state;
+
+/**
+ * Our call's current state.
+ */
+static enum CallState call_state;
+
+/**
+ * Counts the number of incoming calls we have had so far.
+ */
+static unsigned int caller_num_gen;
+
+/**
+ * GNS address for this phone.
+ */
+static char *address;
+
+/**
+ * Be verbose.
+ */
+static int verbose;
+
+
+/**
+ * Function called with an event emitted by a phone.
*
* @param cls closure
- * @param handle to the conversation session
- * @param caller peer that calls you
+ * @param code type of the event
+ * @param caller handle for the caller
+ * @param caller_id name of the caller in GNS
*/
-void
-call_handler (void *cls, struct GNUNET_CONVERSATION_Handle *handle,
- const struct GNUNET_PeerIdentity *caller)
+static void
+phone_event_handler (void *cls,
+ enum GNUNET_CONVERSATION_PhoneEventCode code,
+ struct GNUNET_CONVERSATION_Caller *caller,
+ const char *caller_id)
{
- FPRINTF (stdout, _("Incoming call from peer: %s\n"),
- GNUNET_i2s_full (caller));
+ struct CallList *cl;
+
+ switch (code)
+ {
+ case GNUNET_CONVERSATION_EC_PHONE_RING:
+ FPRINTF (stdout,
+ _("Incoming call from `%s'. Please /accept #%u or /cancel %u the call.\n"),
+ caller_id,
+ caller_num_gen,
+ caller_num_gen);
+ cl = GNUNET_new (struct CallList);
+ cl->caller = caller;
+ cl->caller_id = GNUNET_strdup (caller_id);
+ cl->caller_num = caller_num_gen++;
+ GNUNET_CONTAINER_DLL_insert (cl_head,
+ cl_tail,
+ cl);
+ break;
+ case GNUNET_CONVERSATION_EC_PHONE_HUNG_UP:
+ for (cl = cl_head; NULL != cl; cl = cl->next)
+ if (caller == cl->caller)
+ break;
+ if (NULL == cl)
+ {
+ GNUNET_break (0);
+ return;
+ }
+ FPRINTF (stdout,
+ _("Call from `%s' terminated\n"),
+ cl->caller_id);
+ GNUNET_CONTAINER_DLL_remove (cl_head,
+ cl_tail,
+ cl);
+ GNUNET_free (cl->caller_id);
+ if (cl == cl_active)
+ {
+ cl_active = NULL;
+ phone_state = PS_LISTEN;
+ }
+ GNUNET_free (cl);
+ break;
+ }
}
+
/**
- * Method called whenever a call is rejected
+ * Function called with an event emitted by a caller.
*
- * @param cls closure
- * @param handle to the conversation session
- * @param peer peer that rejected your call
+ * @param cls closure with the `struct CallList` of the caller
+ * @param code type of the event issued by the caller
*/
-void
-reject_handler (void *cls, struct GNUNET_CONVERSATION_Handle *handle, int reason,
- const struct GNUNET_PeerIdentity *peer)
+static void
+caller_event_handler (void *cls,
+ enum GNUNET_CONVERSATION_CallerEventCode code)
{
- FPRINTF (stdout, _("Peer %s rejected your call. Reason: %d\n"),
- GNUNET_i2s_full (peer), reason);
+ struct CallList *cl = cls;
+
+ switch (code)
+ {
+ case GNUNET_CONVERSATION_EC_CALLER_SUSPEND:
+ FPRINTF (stdout,
+ _("Call from `%s' suspended by other user\n"),
+ cl->caller_id);
+ break;
+ case GNUNET_CONVERSATION_EC_CALLER_RESUME:
+ FPRINTF (stdout,
+ _("Call from `%s' resumed by other user\n"),
+ cl->caller_id);
+ break;
+ }
}
+
/**
- * Method called whenever a notification is there
- *
- * @param cls closure
- * @param handle to the conversation session
- * @param type the type of the notification
- * @param peer peer that the notification is about
+ * Start our phone.
*/
-void
-notification_handler (void *cls, struct GNUNET_CONVERSATION_Handle *handle, int type,
- const struct GNUNET_PeerIdentity *peer)
+static void
+start_phone ()
{
- switch (type)
- {
- case NotificationType_SERVICE_BLOCKED:
- FPRINTF (stdout, _("The service is already in use. Try again later."));
+ struct GNUNET_GNSRECORD_Data rd;
- break;
+ if (NULL == caller_id)
+ {
+ FPRINTF (stderr,
+ _("Ego `%s' no longer available, phone is now down.\n"),
+ ego_name);
+ phone_state = PS_LOOKUP_EGO;
+ return;
+ }
+ GNUNET_assert (NULL == phone);
+ phone = GNUNET_CONVERSATION_phone_create (cfg,
+ caller_id,
+ &phone_event_handler, NULL);
+ /* FIXME: get record and print full GNS record info later here... */
+ if (NULL == phone)
+ {
+ FPRINTF (stderr,
+ "%s",
+ _("Failed to setup phone (internal error)\n"));
+ phone_state = PS_ERROR;
+ }
+ else
+ {
+ GNUNET_CONVERSATION_phone_get_record (phone,
+ &rd);
+ GNUNET_free_non_null (address);
+ address = GNUNET_GNSRECORD_value_to_string (rd.record_type,
+ rd.data,
+ rd.data_size);
+ FPRINTF (stdout,
+ _("Phone active on line %u. Type `/help' for a list of available commands\n"),
+ (unsigned int) line);
+ phone_state = PS_LISTEN;
+ }
+}
- case NotificationType_NO_PEER:
- FPRINTF (stdout, _("The Peer you were calling is no correct peer.\n"));
- break;
+/**
+ * Function called with an event emitted by a call.
+ *
+ * @param cls closure, NULL
+ * @param code type of the event on the call
+ */
+static void
+call_event_handler (void *cls,
+ enum GNUNET_CONVERSATION_CallEventCode code)
+{
+ switch (code)
+ {
+ case GNUNET_CONVERSATION_EC_CALL_RINGING:
+ GNUNET_break (CS_RESOLVING == call_state);
+ FPRINTF (stdout,
+ _("Resolved address of `%s'. Now ringing other party.\n"),
+ peer_name);
+ call_state = CS_RINGING;
+ break;
+ case GNUNET_CONVERSATION_EC_CALL_PICKED_UP:
+ GNUNET_break (CS_RINGING == call_state);
+ FPRINTF (stdout,
+ _("Connection established to `%s'\n"),
+ peer_name);
+ call_state = CS_CONNECTED;
+ break;
+ case GNUNET_CONVERSATION_EC_CALL_GNS_FAIL:
+ GNUNET_break (CS_RESOLVING == call_state);
+ FPRINTF (stdout,
+ _("Failed to resolve `%s'\n"),
+ ego_name);
+ call = NULL;
+ break;
+ case GNUNET_CONVERSATION_EC_CALL_HUNG_UP:
+ FPRINTF (stdout,
+ "%s",
+ _("Call terminated\n"));
+ call = NULL;
+ break;
+ case GNUNET_CONVERSATION_EC_CALL_SUSPENDED:
+ GNUNET_break (CS_CONNECTED == call_state);
+ FPRINTF (stdout,
+ _("Connection to `%s' suspended (by other user)\n"),
+ peer_name);
+ break;
+ case GNUNET_CONVERSATION_EC_CALL_RESUMED:
+ GNUNET_break (CS_CONNECTED == call_state);
+ FPRINTF (stdout,
+ _("Connection to `%s' resumed (by other user)\n"),
+ peer_name);
+ break;
+ case GNUNET_CONVERSATION_EC_CALL_ERROR:
+ FPRINTF (stdout,
+ _("Error with the call, restarting it\n"));
+ call_state = CS_RESOLVING;
+ break;
+ }
+}
- case NotificationType_NO_ANSWER:
- FPRINTF (stdout, _("Peer %s did not answer your call.\n"),
- GNUNET_i2s_full (peer));
- break;
+/**
+ * Function declareation for executing a action
+ *
+ * @param arguments arguments given to the function
+ */
+typedef void (*ActionFunction) (const char *arguments);
- case NotificationType_AVAILABLE_AGAIN:
- FPRINTF (stdout, _("Peer %s is now available.\n"),
- GNUNET_i2s_full (peer));
- break;
+/**
+ * Structure which defines a command
+ */
+struct VoipCommand
+{
+ /**
+ * Command the user needs to enter.
+ */
+ const char *command;
- case NotificationType_CALL_ACCEPTED:
- FPRINTF (stdout, _("Peer %s has accepted your call.\n"),
- GNUNET_i2s_full (peer));
+ /**
+ * Function to call on command.
+ */
+ ActionFunction Action;
- break;
+ /**
+ * Help text for the command.
+ */
+ const char *helptext;
+};
- case NotificationType_CALL_TERMINATED:
- FPRINTF (stdout, _("Peer %s has terminated the call.\n"),
- GNUNET_i2s_full (peer));
- break;
- }
-}
+/**
+ * Action function to print help for the command shell.
+ *
+ * @param args arguments given to the command
+ */
+static void
+do_help (const char *args);
+
/**
- * Method called whenever a notification for missed calls is there
+ * Terminate the client
*
- * @param cls closure
- * @param handle to the conversation session
- * @param missed_calls a list of missed calls
+ * @param args arguments given to the command
*/
-void
-missed_call_handler (void *cls, struct GNUNET_CONVERSATION_Handle *handle,
- struct GNUNET_CONVERSATION_MissedCallNotification *missed_calls)
+static void
+do_quit (const char *args)
{
- FPRINTF (stdout, _("You have missed calls.\n"));
+ GNUNET_SCHEDULER_shutdown ();
}
+
/**
-* Terminating the client
-*/
-static int
-do_quit (const char *args, const void *xtra)
+ * Handler for unknown command.
+ *
+ * @param msg arguments given to the command
+ */
+static void
+do_unknown (const char *msg)
{
- return GNUNET_SYSERR;
+ FPRINTF (stderr,
+ _("Unknown command `%s'\n"),
+ msg);
}
+
/**
-*
-*/
-static int
-do_unknown (const char *msg, const void *xtra)
+ * Initiating a new call
+ *
+ * @param arg arguments given to the command
+ */
+static void
+do_call (const char *arg)
{
- FPRINTF (stderr, _("Unknown command `%s'\n"), msg);
- return GNUNET_OK;
+ if (NULL == caller_id)
+ {
+ FPRINTF (stderr,
+ _("Ego `%s' not available\n"),
+ ego_name);
+ return;
+ }
+ if (NULL != call)
+ {
+ FPRINTF (stderr,
+ _("You are calling someone else already, hang up first!\n"));
+ return;
+ }
+ switch (phone_state)
+ {
+ case PS_LOOKUP_EGO:
+ FPRINTF (stderr,
+ _("Ego `%s' not available\n"),
+ ego_name);
+ return;
+ case PS_LISTEN:
+ /* ok to call! */
+ break;
+ case PS_ACCEPTED:
+ FPRINTF (stderr,
+ _("You are answering call from `%s', hang up or suspend that call first!\n"),
+ peer_name);
+ return;
+ case PS_ERROR:
+ /* ok to call */
+ break;
+ }
+ GNUNET_free_non_null (peer_name);
+ if (NULL == arg)
+ {
+ FPRINTF (stderr,
+ _("Call recipient missing.\n"));
+ do_help ("/call");
+ return;
+ }
+ peer_name = GNUNET_strdup (arg);
+ call_state = CS_RESOLVING;
+ GNUNET_assert (NULL == call);
+ call = GNUNET_CONVERSATION_call_start (cfg,
+ caller_id,
+ arg,
+ speaker,
+ mic,
+ &call_event_handler, NULL);
}
+
/**
-* Initiating a new call
-*/
-static int
-do_call (const char *arg, const void *xtra)
+ * Accepting an incoming call
+ *
+ * @param args arguments given to the command
+ */
+static void
+do_accept (const char *args)
{
- char *callee = GNUNET_strdup (arg);
- FPRINTF (stdout, _("Initiating call to: %s\n"), callee);
- GNUNET_CONVERSATION_call (conversation, callee, GNUNET_YES);
+ struct CallList *cl;
+ char buf[32];
+
+ if ( (NULL != call) &&
+ (CS_SUSPENDED != call_state) )
+ {
+ FPRINTF (stderr,
+ _("You are calling someone else already, hang up first!\n"));
+ return;
+ }
+ switch (phone_state)
+ {
+ case PS_LOOKUP_EGO:
+ GNUNET_break (0);
+ break;
+ case PS_LISTEN:
+ /* this is the expected state */
+ break;
+ case PS_ACCEPTED:
+ FPRINTF (stderr,
+ _("You are answering call from `%s', hang up or suspend that call first!\n"),
+ peer_name);
+ return;
+ case PS_ERROR:
+ GNUNET_break (0);
+ break;
+ }
+ cl = cl_head;
+ if (NULL == cl)
+ {
+ FPRINTF (stderr,
+ _("There is no incoming call to accept here!\n"));
+ return;
+ }
+ if ( (NULL != cl->next) || (NULL != args) )
+ {
+ for (cl = cl_head; NULL != cl; cl = cl->next)
+ {
+ GNUNET_snprintf (buf, sizeof (buf),
+ "%u",
+ cl->caller_num);
+ if (0 == strcmp (buf, args))
+ break;
+ }
+ }
+ if (NULL == cl)
+ {
+ FPRINTF (stderr,
+ _("There is no incoming call `%s' to accept right now!\n"),
+ args);
+ return;
+ }
+ cl_active = cl;
+ GNUNET_free_non_null (peer_name);
+ peer_name = GNUNET_strdup (cl->caller_id);
+ phone_state = PS_ACCEPTED;
+ GNUNET_CONVERSATION_caller_pick_up (cl->caller,
+ &caller_event_handler,
+ cl,
+ speaker,
+ mic);
+}
+
- return GNUNET_OK;
+/**
+ * Print address information for this phone.
+ *
+ * @param args arguments given to the command
+ */
+static void
+do_address (const char *args)
+{
+ if (NULL == address)
+ {
+ FPRINTF (stdout,
+ "%s",
+ _("We currently do not have an address.\n"));
+ return;
+ }
+ FPRINTF (stdout,
+ "%s\n",
+ address);
}
+
/**
-* Initiating a new call
-*/
-static int
-do_call_peer (const char *arg, const void *xtra)
+ * Accepting an incoming call
+ *
+ * @param args arguments given to the command
+ */
+static void
+do_status (const char *args)
{
- char *callee = GNUNET_strdup (arg);
- FPRINTF (stdout, _("Initiating call to: %s\n"), callee);
- GNUNET_CONVERSATION_call (conversation, callee, GNUNET_NO);
+ struct CallList *cl;
- return GNUNET_OK;
+ switch (phone_state)
+ {
+ case PS_LOOKUP_EGO:
+ FPRINTF (stdout,
+ _("We are currently trying to locate the private key for the ego `%s'.\n"),
+ ego_name);
+ break;
+ case PS_LISTEN:
+ FPRINTF (stdout,
+ _("We are listening for incoming calls for ego `%s' on line %u.\n"),
+ ego_name,
+ line);
+ break;
+ case PS_ACCEPTED:
+ FPRINTF (stdout,
+ _("You are having a conversation with `%s'.\n"),
+ peer_name);
+ break;
+ case PS_ERROR:
+ FPRINTF (stdout,
+ _("We had an internal error setting up our phone line. You can still make calls.\n"));
+ break;
+ }
+ if (NULL != call)
+ {
+ switch (call_state)
+ {
+ case CS_RESOLVING:
+ FPRINTF (stdout,
+ _("We are trying to find the network address to call `%s'.\n"),
+ peer_name);
+ break;
+ case CS_RINGING:
+ FPRINTF (stdout,
+ _("We are calling `%s', his phone should be ringing.\n"),
+ peer_name);
+ break;
+ case CS_CONNECTED:
+ FPRINTF (stdout,
+ _("You are having a conversation with `%s'.\n"),
+ peer_name);
+ break;
+ case CS_SUSPENDED:
+ /* ok to accept incoming call right now */
+ break;
+ }
+ }
+ if ( (NULL != cl_head) &&
+ ( (cl_head != cl_active) ||
+ (cl_head != cl_tail) ) )
+ {
+ FPRINTF (stdout,
+ "%s",
+ _("Calls waiting:\n"));
+ for (cl = cl_head; NULL != cl; cl = cl->next)
+ {
+ if (cl == cl_active)
+ continue;
+ FPRINTF (stdout,
+ _("#%u: `%s'\n"),
+ cl->caller_num,
+ cl->caller_id);
+ }
+ FPRINTF (stdout,
+ "%s",
+ "\n");
+ }
}
+
/**
-* Accepting an incoming call
-*/
-static int
-do_accept (const char *args, const void *xtra)
+ * Suspending a call
+ *
+ * @param args arguments given to the command
+ */
+static void
+do_suspend (const char *args)
{
- FPRINTF (stdout, _("Accepting the call\n"));
- GNUNET_CONVERSATION_accept (conversation);
-
- return GNUNET_OK;
+ if (NULL != call)
+ {
+ switch (call_state)
+ {
+ case CS_RESOLVING:
+ case CS_RINGING:
+ case CS_SUSPENDED:
+ FPRINTF (stderr,
+ "%s",
+ _("There is no call that could be suspended right now.\n"));
+ return;
+ case CS_CONNECTED:
+ call_state = CS_SUSPENDED;
+ GNUNET_CONVERSATION_call_suspend (call);
+ return;
+ }
+ }
+ switch (phone_state)
+ {
+ case PS_LOOKUP_EGO:
+ case PS_LISTEN:
+ case PS_ERROR:
+ FPRINTF (stderr,
+ "%s",
+ _("There is no call that could be suspended right now.\n"));
+ return;
+ case PS_ACCEPTED:
+ /* expected state, do rejection logic */
+ break;
+ }
+ GNUNET_assert (NULL != cl_active);
+ GNUNET_CONVERSATION_caller_suspend (cl_active->caller);
+ cl_active = NULL;
+ phone_state = PS_LISTEN;
}
+
/**
-* Rejecting a call
-*/
-static int
-do_reject (const char *args, const void *xtra)
+ * Resuming a call
+ *
+ * @param args arguments given to the command
+ */
+static void
+do_resume (const char *args)
{
- FPRINTF (stdout, _("Rejecting the call\n"));
- GNUNET_CONVERSATION_reject (conversation);
+ struct CallList *cl;
+ char buf[32];
- return GNUNET_OK;
+ if (NULL != call)
+ {
+ switch (call_state)
+ {
+ case CS_RESOLVING:
+ case CS_RINGING:
+ case CS_CONNECTED:
+ FPRINTF (stderr,
+ "%s",
+ _("There is no call that could be resumed right now.\n"));
+ return;
+ case CS_SUSPENDED:
+ call_state = CS_CONNECTED;
+ GNUNET_CONVERSATION_call_resume (call,
+ speaker,
+ mic);
+ return;
+ }
+ }
+ switch (phone_state)
+ {
+ case PS_LOOKUP_EGO:
+ case PS_ERROR:
+ FPRINTF (stderr,
+ "%s",
+ _("There is no call that could be resumed right now.\n"));
+ return;
+ case PS_LISTEN:
+ /* expected state, do resume logic */
+ break;
+ case PS_ACCEPTED:
+ FPRINTF (stderr,
+ _("Already talking with `%s', cannot resume a call right now.\n"),
+ peer_name);
+ return;
+ }
+ GNUNET_assert (NULL == cl_active);
+ cl = cl_head;
+ if (NULL == cl)
+ {
+ FPRINTF (stderr,
+ _("There is no incoming call to resume here!\n"));
+ return;
+ }
+ if ( (NULL != cl->next) || (NULL != args) )
+ {
+ for (cl = cl_head; NULL != cl; cl = cl->next)
+ {
+ GNUNET_snprintf (buf, sizeof (buf),
+ "%u",
+ cl->caller_num);
+ if (0 == strcmp (buf, args))
+ break;
+ }
+ }
+ if (NULL == cl)
+ {
+ FPRINTF (stderr,
+ _("There is no incoming call `%s' to resume right now!\n"),
+ args);
+ return;
+ }
+ cl_active = cl;
+ GNUNET_CONVERSATION_caller_resume (cl_active->caller,
+ speaker,
+ mic);
+ phone_state = PS_ACCEPTED;
}
+
/**
-* Terminating a call
-*/
-static int
-do_hang_up (const char *args, const void *xtra)
+ * Rejecting a call
+ *
+ * @param args arguments given to the command
+ */
+static void
+do_reject (const char *args)
{
- FPRINTF (stdout, _("Terminating the call\n"));
- GNUNET_CONVERSATION_hangup (conversation);
+ struct CallList *cl;
+ char buf[32];
- return GNUNET_OK;
+ if (NULL != call)
+ {
+ GNUNET_CONVERSATION_call_stop (call);
+ call = NULL;
+ return;
+ }
+ switch (phone_state)
+ {
+ case PS_LOOKUP_EGO:
+ case PS_ERROR:
+ FPRINTF (stderr,
+ "%s",
+ _("There is no call that could be cancelled right now.\n"));
+ return;
+ case PS_LISTEN:
+ /* look for active incoming calls to refuse */
+ cl = cl_head;
+ if (NULL == cl)
+ {
+ FPRINTF (stderr,
+ _("There is no incoming call to refuse here!\n"));
+ return;
+ }
+ if ( (NULL != cl->next) || (NULL != args) )
+ {
+ for (cl = cl_head; NULL != cl; cl = cl->next)
+ {
+ GNUNET_snprintf (buf, sizeof (buf),
+ "%u",
+ cl->caller_num);
+ if (0 == strcmp (buf, args))
+ break;
+ }
+ }
+ if (NULL == cl)
+ {
+ FPRINTF (stderr,
+ _("There is no incoming call `%s' to refuse right now!\n"),
+ args);
+ return;
+ }
+ GNUNET_CONVERSATION_caller_hang_up (cl->caller);
+ GNUNET_CONTAINER_DLL_remove (cl_head,
+ cl_tail,
+ cl);
+ GNUNET_free (cl->caller_id);
+ GNUNET_free (cl);
+ break;
+ case PS_ACCEPTED:
+ /* expected state, do rejection logic */
+ GNUNET_assert (NULL != cl_active);
+ GNUNET_CONVERSATION_caller_hang_up (cl_active->caller);
+ cl_active = NULL;
+ phone_state = PS_LISTEN;
+ break;
+ }
}
+
/**
* List of supported commands.
*/
static struct VoipCommand commands[] = {
- {"/call ", &do_call, gettext_noop ("Use `/call gads_record'")},
- {"/callpeer ", &do_call_peer,
- gettext_noop ("Use `/call private_key' to call a person")},
+ {"/address", &do_address,
+ gettext_noop ("Use `/address' to find out which address this phone should have in GNS")},
+ {"/call", &do_call,
+ gettext_noop ("Use `/call USER.gnu' to call USER")},
{"/accept", &do_accept,
- gettext_noop ("Use `/accept' to accept an incoming call")},
- {"/terminate", &do_hang_up,
- gettext_noop ("Use `/terminate' to end a call")},
- {"/reject", &do_reject,
- gettext_noop ("Use `/rejet' to reject an incoming call")},
- {"/quit", &do_quit, gettext_noop ("Use `/quit' to terminate gnunet-conversation")},
+ gettext_noop ("Use `/accept #NUM' to accept incoming call #NUM")},
+ {"/suspend", &do_suspend,
+ gettext_noop ("Use `/suspend' to suspend the active call")},
+ {"/resume", &do_resume,
+ gettext_noop ("Use `/resume [#NUM]' to resume a call, #NUM is needed to resume incoming calls, no argument is needed to resume the current outgoing call.")},
+ {"/cancel", &do_reject,
+ gettext_noop ("Use `/cancel' to reject or terminate a call")},
+ {"/status", &do_status,
+ gettext_noop ("Use `/status' to print status information")},
+ {"/quit", &do_quit,
+ gettext_noop ("Use `/quit' to terminate gnunet-conversation")},
{"/help", &do_help,
gettext_noop ("Use `/help command' to get help for a specific command")},
- {"/", &do_unknown, NULL},
- {"", &do_unknown, NULL},
+ {"", &do_unknown,
+ NULL},
{NULL, NULL, NULL},
};
+
/**
-*
-*/
-static int
-do_help (const char *args, const void *xtra)
+ * Action function to print help for the command shell.
+ *
+ * @param args arguments given to the command
+ */
+static void
+do_help (const char *args)
{
- int i;
+ unsigned int i;
i = 0;
- while ((NULL != args) && (0 != strlen (args)) &&
- (commands[i].Action != &do_help))
+ while ( (NULL != args) &&
+ (0 != strlen (args)) &&
+ (commands[i].Action != &do_help))
+ {
+ if (0 ==
+ strncasecmp (&args[1], &commands[i].command[1], strlen (args) - 1))
{
- if (0 ==
- strncasecmp (&args[1], &commands[i].command[1], strlen (args) - 1))
- {
- FPRINTF (stdout, "%s\n", gettext (commands[i].helptext));
- return GNUNET_OK;
- }
- i++;
+ FPRINTF (stdout,
+ "%s\n",
+ gettext (commands[i].helptext));
+ return;
}
+ i++;
+ }
i = 0;
- FPRINTF (stdout, "%s", "Available commands:");
+ FPRINTF (stdout,
+ "%s",
+ "Available commands:\n");
while (commands[i].Action != &do_help)
- {
- FPRINTF (stdout, " %s", gettext (commands[i].command));
- i++;
- }
- FPRINTF (stdout, "%s", "\n");
- FPRINTF (stdout, "%s\n", gettext (commands[i].helptext));
- return GNUNET_OK;
+ {
+ FPRINTF (stdout,
+ "%s\n",
+ gettext (commands[i].command));
+ i++;
+ }
+ FPRINTF (stdout,
+ "%s",
+ "\n");
+ FPRINTF (stdout,
+ "%s\n",
+ gettext (commands[i].helptext));
}
+
/**
-*
-*/
+ * Task run during shutdown.
+ *
+ * @param cls NULL
+ * @param tc unused
+ */
static void
-do_stop_task (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
+do_stop_task (void *cls,
+ const struct GNUNET_SCHEDULER_TaskContext *tc)
{
- GNUNET_log (GNUNET_ERROR_TYPE_INFO, "Running shutdown task\n");
- GNUNET_CONVERSATION_disconnect (conversation);
-
- if (handle_cmd_task != GNUNET_SCHEDULER_NO_TASK)
- {
- GNUNET_SCHEDULER_cancel (handle_cmd_task);
- handle_cmd_task = GNUNET_SCHEDULER_NO_TASK;
- }
-
- GNUNET_log (GNUNET_ERROR_TYPE_INFO, "Running shutdown task finished\n");
+ if (NULL != call)
+ {
+ GNUNET_CONVERSATION_call_stop (call);
+ call = NULL;
+ }
+ if (NULL != phone)
+ {
+ GNUNET_CONVERSATION_phone_destroy (phone);
+ phone = NULL;
+ }
+ if (GNUNET_SCHEDULER_NO_TASK != handle_cmd_task)
+ {
+ GNUNET_SCHEDULER_cancel (handle_cmd_task);
+ handle_cmd_task = GNUNET_SCHEDULER_NO_TASK;
+ }
+ if (NULL != id)
+ {
+ GNUNET_IDENTITY_disconnect (id);
+ id = NULL;
+ }
+ GNUNET_SPEAKER_destroy (speaker);
+ speaker = NULL;
+ GNUNET_MICROPHONE_destroy (mic);
+ mic = NULL;
+ GNUNET_free (ego_name);
+ ego_name = NULL;
+ GNUNET_free_non_null (peer_name);
+ phone_state = PS_ERROR;
}
+
/**
-*
-*/
-void
-handle_command (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
+ * Task to handle commands from the terminal.
+ *
+ * @param cls NULL
+ * @param tc scheduler context
+ */
+static void
+handle_command (void *cls,
+ const struct GNUNET_SCHEDULER_TaskContext *tc)
{
char message[MAX_MESSAGE_LENGTH + 1];
- int i;
+ const char *ptr;
+ size_t i;
+ handle_cmd_task =
+ GNUNET_SCHEDULER_add_read_file (GNUNET_TIME_UNIT_FOREVER_REL,
+ stdin_fh,
+ &handle_command, NULL);
/* read message from command line and handle it */
memset (message, 0, MAX_MESSAGE_LENGTH + 1);
if (NULL == fgets (message, MAX_MESSAGE_LENGTH, stdin))
- goto next;
- if (strlen (message) == 0)
- goto next;
+ return;
+ if (0 == strlen (message))
+ return;
if (message[strlen (message) - 1] == '\n')
message[strlen (message) - 1] = '\0';
- if (strlen (message) == 0)
- goto next;
+ if (0 == strlen (message))
+ return;
i = 0;
while ((NULL != commands[i].command) &&
- (0 !=
- strncasecmp (commands[i].command, message,
- strlen (commands[i].command))))
+ (0 != strncasecmp (commands[i].command, message,
+ strlen (commands[i].command))))
i++;
- if (GNUNET_OK !=
- commands[i].Action (&message[strlen (commands[i].command)], NULL))
- goto out;
+ ptr = &message[strlen (commands[i].command)];
+ while (isspace ((int) *ptr))
+ ptr++;
+ if ('\0' == *ptr)
+ ptr = NULL;
+ commands[i].Action (ptr);
+}
-next:
- handle_cmd_task =
- GNUNET_SCHEDULER_add_delayed_with_priority (GNUNET_TIME_relative_multiply
- (GNUNET_TIME_UNIT_MILLISECONDS,
- 100),
- GNUNET_SCHEDULER_PRIORITY_UI,
- &handle_command, NULL);
- return;
-
-out:
- handle_cmd_task = GNUNET_SCHEDULER_NO_TASK;
- GNUNET_SCHEDULER_shutdown ();
+
+/**
+ * Function called by identity service with information about egos.
+ *
+ * @param cls NULL
+ * @param ego ego handle
+ * @param ctx unused
+ * @param name name of the ego
+ */
+static void
+identity_cb (void *cls,
+ struct GNUNET_IDENTITY_Ego *ego,
+ void **ctx,
+ const char *name)
+{
+ if (NULL == name)
+ return;
+ if (ego == caller_id)
+ {
+ if (verbose)
+ FPRINTF (stdout,
+ _("Name of our ego changed to `%s'\n"),
+ name);
+ GNUNET_free (ego_name);
+ ego_name = GNUNET_strdup (name);
+ return;
+ }
+ if (0 != strcmp (name,
+ ego_name))
+ return;
+ if (NULL == ego)
+ {
+ if (verbose)
+ FPRINTF (stdout,
+ _("Our ego `%s' was deleted!\n"),
+ ego_name);
+ caller_id = NULL;
+ return;
+ }
+ caller_id = ego;
+ GNUNET_CONFIGURATION_set_value_number (cfg,
+ "CONVERSATION",
+ "LINE",
+ line);
+ start_phone ();
}
+
/**
* Main function that will be run by the scheduler.
*
* @param c configuration
*/
static void
-run (void *cls, char *const *args, const char *cfgfile,
+run (void *cls,
+ char *const *args,
+ const char *cfgfile,
const struct GNUNET_CONFIGURATION_Handle *c)
{
- if (NULL ==
- (conversation =
- GNUNET_CONVERSATION_connect (c, NULL, &call_handler, &reject_handler,
- ¬ification_handler, &missed_call_handler)))
- {
- FPRINTF (stderr, "%s", _("Could not access CONVERSATION service. Exiting.\n"));
- return;
- }
-
+ cfg = GNUNET_CONFIGURATION_dup (c);
+ speaker = GNUNET_SPEAKER_create_from_hardware (cfg);
+ mic = GNUNET_MICROPHONE_create_from_hardware (cfg);
+ if (NULL == ego_name)
+ {
+ FPRINTF (stderr,
+ "%s",
+ _("You must specify the NAME of an ego to use\n"));
+ return;
+ }
+ id = GNUNET_IDENTITY_connect (cfg,
+ &identity_cb,
+ NULL);
handle_cmd_task =
GNUNET_SCHEDULER_add_with_priority (GNUNET_SCHEDULER_PRIORITY_UI,
&handle_command, NULL);
NULL);
}
-/** * The main function to conversation.
+
+/**
+ * The main function to conversation.
*
* @param argc number of arguments from the command line
* @param argv command line arguments
main (int argc, char *const *argv)
{
static const struct GNUNET_GETOPT_CommandLineOption options[] = {
+ {'e', "ego", "NAME",
+ gettext_noop ("sets the NAME of the ego to use for the phone (and name resolution)"),
+ 1, &GNUNET_GETOPT_set_string, &ego_name},
+ {'p', "phone", "LINE",
+ gettext_noop ("sets the LINE to use for the phone"),
+ 1, &GNUNET_GETOPT_set_uint, &line},
GNUNET_GETOPT_OPTION_END
};
-
int flags;
int ret;
flags = fcntl (0, F_GETFL, 0);
flags |= O_NONBLOCK;
fcntl (0, F_SETFL, flags);
-
+ stdin_fh = GNUNET_DISK_get_handle_from_int_fd (0);
if (GNUNET_OK != GNUNET_STRINGS_get_utf8_args (argc, argv, &argc, &argv))
return 2;
-
- ret = GNUNET_PROGRAM_run (argc, argv, "gnunet-conversation",
- gettext_noop ("Print information about conversation."),
+ ret = GNUNET_PROGRAM_run (argc, argv,
+ "gnunet-conversation",
+ gettext_noop ("Enables having a conversation with other GNUnet users."),
options, &run, NULL);
GNUNET_free ((void *) argv);
-
- return ret;
+ if (NULL != cfg)
+ {
+ GNUNET_CONFIGURATION_destroy (cfg);
+ cfg = NULL;
+ }
+ return (GNUNET_OK == ret) ? 0 : 1;
}
/* end of gnunet-conversation.c */
projects / oweals / gnunet.git / blobdiff