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Fix file transfers breaking when friends go offline

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This commit is contained in:
Jfreegman 2015-08-10 14:22:13 -04:00
parent f559bdabfe
commit 32e541bd1c
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GPG Key ID: 3627F3144076AE63
4 changed files with 97 additions and 16 deletions
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101
src/chat.c
View File

@ -188,8 +188,8 @@ static void chat_onMessage(ToxWindow *self, Tox *m, uint32_t num, TOX_MESSAGE_TY
return recv_action_helper(self, m, num, msg, len, nick, timefrmt);
}
static void chat_resume_file_transfers(Tox *m, uint32_t fnum);
static void chat_stop_file_senders(Tox *m, uint32_t friendnum);
static void chat_pause_file_transfers(Tox *m, uint32_t friendnum);
static void chat_resume_file_senders(ToxWindow *self, Tox *m, uint32_t fnum);
static void chat_onConnectionChange(ToxWindow *self, Tox *m, uint32_t num, TOX_CONNECTION connection_status)
{
@ -209,7 +209,7 @@ static void chat_onConnectionChange(ToxWindow *self, Tox *m, uint32_t num, TOX_C
if (connection_status != TOX_CONNECTION_NONE && statusbar->connection == TOX_CONNECTION_NONE) {
Friends.list[num].is_typing = user_settings->show_typing_other == SHOW_TYPING_ON
? tox_friend_get_typing(m, num, NULL) : false;
chat_resume_file_transfers(m, num);
chat_resume_file_senders(self, m, num);
msg = "has come online";
line_info_add(self, timefrmt, nick, NULL, CONNECTION, 0, GREEN, msg);
@ -220,7 +220,7 @@ static void chat_onConnectionChange(ToxWindow *self, Tox *m, uint32_t num, TOX_C
if (self->chatwin->self_is_typing)
set_self_typingstatus(self, m, 0);
chat_stop_file_senders(m, num);
chat_pause_file_transfers(m, num);
msg = "has gone offline";
line_info_add(self, timefrmt, nick, NULL, DISCONNECTION, 0, RED, msg);
@ -277,17 +277,44 @@ static void chat_onReadReceipt(ToxWindow *self, Tox *m, uint32_t num, uint32_t r
cqueue_remove(self, m, receipt);
}
/* Stops active file senders for this friend. Call when a friend goes offline */
static void chat_stop_file_senders(Tox *m, uint32_t friendnum)
/* Stops active file transfers for this friend. Called when a friend goes offline */
static void chat_pause_file_transfers(Tox *m, uint32_t friendnum)
{
// TODO: core purges file transfers when a friend goes offline. Ideally we want to repair/resume
kill_all_file_transfers_friend(m, friendnum);
ToxicFriend *friend = &Friends.list[friendnum];
size_t i;
for (i = 0; i < MAX_FILES; ++i) {
if (friend->file_sender[i].state >= FILE_TRANSFER_STARTED)
friend->file_sender[i].state = FILE_TRANSFER_PAUSED;
if (friend->file_receiver[i].state >= FILE_TRANSFER_STARTED)
friend->file_receiver[i].state = FILE_TRANSFER_PAUSED;
}
}
/* Tries to resume broken file transfers. Call when a friend comes online */
static void chat_resume_file_transfers(Tox *m, uint32_t fnum)
/* Tries to resume broken file senders. Called when a friend comes online */
static void chat_resume_file_senders(ToxWindow *self, Tox *m, uint32_t friendnum)
{
// TODO
size_t i;
for (i = 0; i < MAX_FILES; ++i) {
struct FileTransfer *ft = &Friends.list[friendnum].file_sender[i];
if (ft->state != FILE_TRANSFER_PAUSED)
continue;
TOX_ERR_FILE_SEND err;
ft->filenum = tox_file_send(m, friendnum, TOX_FILE_KIND_DATA, ft->file_size, ft->file_id,
(uint8_t *) ft->file_name, strlen(ft->file_name), &err);
if (err != TOX_ERR_FILE_SEND_OK) {
char msg[MAX_STR_SIZE];
snprintf(msg, sizeof(msg), "File transfer for '%s' failed.", ft->file_name);
close_file_transfer(self, m, ft, -1, msg, notif_error);
continue;
}
}
}
static void chat_onFileChunkRequest(ToxWindow *self, Tox *m, uint32_t friendnum, uint32_t filenum, uint64_t position,
@ -428,12 +455,63 @@ static void chat_onFileControl(ToxWindow *self, Tox *m, uint32_t friendnum, uint
}
}
/* Attempts to resume a broken inbound file transfer.
*
* Returns true if resume is successful.
*/
static bool chat_resume_broken_ft(ToxWindow *self, Tox *m, uint32_t friendnum, uint32_t filenum)
{
char msg[MAX_STR_SIZE];
uint8_t file_id[TOX_FILE_ID_LENGTH];
if (!tox_file_get_file_id(m, friendnum, filenum, file_id, NULL))
return false;
bool resuming = false;
struct FileTransfer *ft = NULL;
size_t i;
for (i = 0; i < MAX_FILES; ++i) {
ft = &Friends.list[friendnum].file_receiver[i];
if (ft->state == FILE_TRANSFER_INACTIVE)
continue;
if (memcmp(ft->file_id, file_id, TOX_FILE_ID_LENGTH) == 0) {
ft->filenum = filenum;
resuming = true;
break;
}
}
if (!resuming || !ft)
return false;
if (!tox_file_seek(m, ft->friendnum, ft->filenum, ft->position, NULL))
goto on_error;
if (!tox_file_control(m, friendnum, filenum, TOX_FILE_CONTROL_RESUME, NULL))
goto on_error;
ft->state = FILE_TRANSFER_STARTED;
return true;
on_error:
snprintf(msg, sizeof(msg), "File transfer for '%s' failed.", ft->file_name);
close_file_transfer(self, m, ft, -1, msg, notif_error);
return false;
}
static void chat_onFileRecv(ToxWindow *self, Tox *m, uint32_t friendnum, uint32_t filenum, uint64_t file_size,
const char *filename, size_t name_length)
{
if (self->num != friendnum)
return;
/* first check if we need to resume a broken transfer */
if (chat_resume_broken_ft(self, m, friendnum, filenum))
return;
struct FileTransfer *ft = get_new_file_receiver(friendnum);
if (!ft) {
@ -500,6 +578,7 @@ static void chat_onFileRecv(ToxWindow *self, Tox *m, uint32_t friendnum, uint32_
ft->file_type = TOX_FILE_KIND_DATA;
snprintf(ft->file_path, sizeof(ft->file_path), "%s", file_path);
snprintf(ft->file_name, sizeof(ft->file_name), "%s", filename);
tox_file_get_file_id(m, friendnum, filenum, ft->file_id, NULL);
if (self->active_box != -1)
box_notify2(self, transfer_pending, NT_WNDALERT_0 | NT_NOFOCUS, self->active_box,

1
src/chat_commands.c
View File

@ -278,6 +278,7 @@ void cmd_sendfile(WINDOW *window, ToxWindow *self, Tox *m, int argc, char (*argv
ft->friendnum = self->num;
ft->direction = FILE_TRANSFER_SEND;
ft->file_type = TOX_FILE_KIND_DATA;
tox_file_get_file_id(m, self->num, filenum, ft->file_id, NULL);
char sizestr[32];
bytes_convert_str(sizestr, sizeof(sizestr), filesize);

4
src/file_transfers.c
View File

@ -209,8 +209,6 @@ void close_file_transfer(ToxWindow *self, Tox *m, struct FileTransfer *ft, int C
if (ft->file)
fclose(ft->file);
memset(ft, 0, sizeof(struct FileTransfer));
if (CTRL >= 0)
tox_file_control(m, ft->friendnum, ft->filenum, (TOX_FILE_CONTROL) CTRL, NULL);
@ -222,6 +220,8 @@ void close_file_transfer(ToxWindow *self, Tox *m, struct FileTransfer *ft, int C
line_info_add(self, NULL, NULL, NULL, SYS_MSG, 0, 0, "%s", message);
}
memset(ft, 0, sizeof(struct FileTransfer));
}
/* Kills all active file transfers for friendnum */

7
src/file_transfers.h
View File

@ -30,8 +30,8 @@
#include "notify.h"
#define KiB 1024
#define MiB 1048576 /* 1024 ^ 2 */
#define GiB 1073741824 /* 1024 ^ 3 */
#define MiB 1048576 /* 1024^2 */
#define GiB 1073741824 /* 1024^3 */
#define MAX_FILES 32
#define TIMEOUT_FILESENDER 120
@ -40,7 +40,7 @@ typedef enum FILE_TRANSFER_STATE {
FILE_TRANSFER_INACTIVE,
FILE_TRANSFER_PENDING,
FILE_TRANSFER_STARTED,
FILE_TRANSFER_PAUSED
FILE_TRANSFER_PAUSED,
} FILE_TRANSFER_STATE;
typedef enum FILE_TRANSFER_DIRECTION {
@ -63,6 +63,7 @@ struct FileTransfer {
uint64_t position;
uint64_t last_progress;
uint32_t line_id;
uint8_t file_id[TOX_FILE_ID_LENGTH];
};
/* creates initial progress line that will be updated during file transfer.