diff options
Diffstat (limited to 'core/Messenger.c')
-rw-r--r-- | core/Messenger.c | 52 |
1 files changed, 46 insertions, 6 deletions
diff --git a/core/Messenger.c b/core/Messenger.c index d8bf3413..a4195d58 100644 --- a/core/Messenger.c +++ b/core/Messenger.c | |||
@@ -37,6 +37,8 @@ typedef struct { | |||
37 | uint8_t userstatus_sent; | 37 | uint8_t userstatus_sent; |
38 | USERSTATUS_KIND userstatus_kind; | 38 | USERSTATUS_KIND userstatus_kind; |
39 | uint16_t info_size; /* length of the info */ | 39 | uint16_t info_size; /* length of the info */ |
40 | uint32_t message_id; /* a semi-unique id used in read receipts */ | ||
41 | uint8_t receives_read_receipts; /* shall we send read receipts to this person? */ | ||
40 | } Friend; | 42 | } Friend; |
41 | 43 | ||
42 | uint8_t self_public_key[crypto_box_PUBLICKEYBYTES]; | 44 | uint8_t self_public_key[crypto_box_PUBLICKEYBYTES]; |
@@ -128,6 +130,8 @@ int m_addfriend(uint8_t *client_id, uint8_t *data, uint16_t length) | |||
128 | friendlist[i].userstatus_kind = USERSTATUS_KIND_OFFLINE; | 130 | friendlist[i].userstatus_kind = USERSTATUS_KIND_OFFLINE; |
129 | memcpy(friendlist[i].info, data, length); | 131 | memcpy(friendlist[i].info, data, length); |
130 | friendlist[i].info_size = length; | 132 | friendlist[i].info_size = length; |
133 | friendlist[i].message_id = 0; | ||
134 | friendlist[i].receives_read_receipts = 1; /* default: YES */ | ||
131 | 135 | ||
132 | ++numfriends; | 136 | ++numfriends; |
133 | return i; | 137 | return i; |
@@ -150,6 +154,8 @@ int m_addfriend_norequest(uint8_t * client_id) | |||
150 | memcpy(friendlist[i].client_id, client_id, CLIENT_ID_SIZE); | 154 | memcpy(friendlist[i].client_id, client_id, CLIENT_ID_SIZE); |
151 | friendlist[i].userstatus = calloc(1, 1); | 155 | friendlist[i].userstatus = calloc(1, 1); |
152 | friendlist[i].userstatus_length = 1; | 156 | friendlist[i].userstatus_length = 1; |
157 | friendlist[i].message_id = 0; | ||
158 | friendlist[i].receives_read_receipts = 1; /* default: YES */ | ||
153 | numfriends++; | 159 | numfriends++; |
154 | return i; | 160 | return i; |
155 | } | 161 | } |
@@ -193,19 +199,30 @@ int m_friendstatus(int friendnumber) | |||
193 | } | 199 | } |
194 | 200 | ||
195 | /* send a text chat message to an online friend | 201 | /* send a text chat message to an online friend |
196 | return 1 if packet was successfully put into the send queue | 202 | return the message id if packet was successfully put into the send queue |
197 | return 0 if it was not */ | 203 | return 0 if it was not */ |
198 | int m_sendmessage(int friendnumber, uint8_t *message, uint32_t length) | 204 | uint32_t m_sendmessage(int friendnumber, uint8_t *message, uint32_t length) |
199 | { | 205 | { |
200 | if (friendnumber < 0 || friendnumber >= numfriends) | 206 | if (friendnumber < 0 || friendnumber >= numfriends) |
201 | return 0; | 207 | return 0; |
202 | if (length >= MAX_DATA_SIZE || friendlist[friendnumber].status != FRIEND_ONLINE) | 208 | return m_sendmessage_withid(friendnumber, friendlist[friendnumber].message_id++, message, length); |
209 | } | ||
210 | |||
211 | uint32_t m_sendmessage_withid(int friendnumber, uint32_t theid, uint8_t *message, uint32_t length) | ||
212 | { | ||
213 | if (friendnumber < 0 || friendnumber >= numfriends) | ||
214 | return 0; | ||
215 | if (length >= (MAX_DATA_SIZE - 4) || friendlist[friendnumber].status != FRIEND_ONLINE) | ||
203 | /* this does not mean the maximum message length is MAX_DATA_SIZE - 1, it is actually 17 bytes less. */ | 216 | /* this does not mean the maximum message length is MAX_DATA_SIZE - 1, it is actually 17 bytes less. */ |
204 | return 0; | 217 | return 0; |
205 | uint8_t temp[MAX_DATA_SIZE]; | 218 | uint8_t temp[MAX_DATA_SIZE]; |
206 | temp[0] = PACKET_ID_MESSAGE; | 219 | temp[0] = PACKET_ID_MESSAGE; |
207 | memcpy(temp + 1, message, length); | 220 | temp[1] = theid >> 24; |
208 | return write_cryptpacket(friendlist[friendnumber].crypt_connection_id, temp, length + 1); | 221 | temp[2] = theid >> 16; |
222 | temp[3] = theid >> 8; | ||
223 | temp[4] = theid; | ||
224 | memcpy(temp + 5, message, length); | ||
225 | return write_cryptpacket(friendlist[friendnumber].crypt_connection_id, temp, length + 5); | ||
209 | } | 226 | } |
210 | 227 | ||
211 | /* send a name packet to friendnumber | 228 | /* send a name packet to friendnumber |
@@ -408,6 +425,14 @@ void m_callback_userstatus(void (*function)(int, USERSTATUS_KIND, uint8_t *, uin | |||
408 | friend_statuschange_isset = 1; | 425 | friend_statuschange_isset = 1; |
409 | } | 426 | } |
410 | 427 | ||
428 | static void (*read_receipt)(int, uint32_t); | ||
429 | static uint8_t read_receipt_isset = 0; | ||
430 | void m_callback_read_receipt(void (*function)(int, uint32_t)) | ||
431 | { | ||
432 | read_receipt = function; | ||
433 | read_receipt_isset = 1; | ||
434 | } | ||
435 | |||
411 | #define PORT 33445 | 436 | #define PORT 33445 |
412 | /* run this at startup */ | 437 | /* run this at startup */ |
413 | int initMessenger(void) | 438 | int initMessenger(void) |
@@ -499,8 +524,23 @@ static void doFriends(void) | |||
499 | break; | 524 | break; |
500 | } | 525 | } |
501 | case PACKET_ID_MESSAGE: { | 526 | case PACKET_ID_MESSAGE: { |
527 | if (friendlist[i].receives_read_receipts) { | ||
528 | uint8_t *thepacket = malloc(5); | ||
529 | thepacket[0] = PACKET_ID_RECEIPT; | ||
530 | memcpy(thepacket + 1, temp + 1, 4); | ||
531 | write_cryptpacket(friendlist[i].crypt_connection_id, thepacket, 5); | ||
532 | free(thepacket); | ||
533 | } | ||
502 | if (friend_message_isset) | 534 | if (friend_message_isset) |
503 | (*friend_message)(i, temp + 1, len - 1); | 535 | (*friend_message)(i, temp + 5, len - 5); |
536 | break; | ||
537 | } | ||
538 | case PACKET_ID_RECEIPT: { | ||
539 | if (len < 5) | ||
540 | break; | ||
541 | uint32_t msgid = (temp[1] << 24) | (temp[2] << 16) | (temp[3] << 8) | temp[4]; | ||
542 | if (read_receipt_isset) | ||
543 | (*read_receipt)(i, msgid); | ||
504 | break; | 544 | break; |
505 | } | 545 | } |
506 | } | 546 | } |