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Goodbye beautiful IDs

Browse Source 
It was a great ride!

IDs look instead of
`TE5BTDc2ZTc3YTMwZGU3MDgzMzllOTliNGExNjVmMjZkMTY1ZmUyZGEyNTUxMjVmODBkMmQzOGMxYWI2ZjAxNzdiM2Q=`
more like `7HcnNSoO1MVvb0p9a9e293152922853e910b8b1a65bb26e225a0568` now.

Regards https://github.com/profanity-im/profanity/issues/1520

We still has our identifier into it to filter MUC reflected messages.

profident maybe should be changed to be longer or be generated upon each
start.
This commit is contained in:
Michael Vetter 2021-04-14 22:47:58 +02:00
parent 558d672733
commit 8c50b63e56
3 changed files with 18 additions and 30 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

32
src/xmpp/connection.c
View File

@ -514,26 +514,20 @@ connection_free_uuid(char* uuid)
char*
connection_create_stanza_id(void)
{
char* uuid = connection_create_uuid();
char* rndid = get_random_string(CON_RAND_ID_LEN);
assert(uuid != NULL);
assert(rndid != NULL);
gchar* hmac = g_compute_hmac_for_string(G_CHECKSUM_SHA256,
gchar* hmac = g_compute_hmac_for_string(G_CHECKSUM_SHA1,
(guchar*)prof_identifier, strlen(prof_identifier),
uuid, strlen(uuid));
rndid, strlen(rndid));
GString* signature = g_string_new("");
g_string_printf(signature, "%s%s", uuid, hmac);
char *ret = g_strdup_printf("%s%s", rndid, hmac);
free(uuid);
free(rndid);
g_free(hmac);
char* b64 = g_base64_encode((unsigned char*)signature->str, signature->len);
g_string_free(signature, TRUE);
assert(b64 != NULL);
return b64;
return ret;
}
char*
@ -748,18 +742,12 @@ _random_bytes_close(void)
static void
_compute_identifier(const char* barejid)
{
gchar* hmac = g_compute_hmac_for_string(G_CHECKSUM_SHA256,
(guchar*)profanity_instance_id, strlen(profanity_instance_id),
barejid, strlen(barejid));
char* b64 = g_base64_encode((guchar*)hmac, XMPP_SHA1_DIGEST_SIZE);
assert(b64 != NULL);
g_free(hmac);
//in case of reconnect (lost connection)
free(prof_identifier);
prof_identifier = b64;
prof_identifier = g_compute_hmac_for_string(G_CHECKSUM_SHA256,
(guchar*)profanity_instance_id, strlen(profanity_instance_id),
barejid, strlen(barejid));
}
const char*

2
src/xmpp/connection.h
View File

@ -38,6 +38,8 @@
#include "xmpp/xmpp.h"
#define CON_RAND_ID_LEN 15
void connection_init(void);
void connection_shutdown(void);
void connection_check_events(void);

14
src/xmpp/message.c
View File

@ -1564,26 +1564,24 @@ message_is_sent_by_us(const ProfMessage* const message, bool checkOID)
}
if (tmp_id != NULL) {
gsize tmp_len;
char* tmp = (char*)g_base64_decode(tmp_id, &tmp_len);
gsize tmp_len = strlen(tmp_id);
// our client sents at least 36 (uuid) + identifier
if (tmp_len > 36) {
char* uuid = g_strndup(tmp, 36);
// our client sents at CON_RAND_ID_LEN + identifier
if (tmp_len > CON_RAND_ID_LEN) {
char* uuid = g_strndup(tmp_id, CON_RAND_ID_LEN);
const char* prof_identifier = connection_get_profanity_identifier();
gchar* hmac = g_compute_hmac_for_string(G_CHECKSUM_SHA256,
gchar* hmac = g_compute_hmac_for_string(G_CHECKSUM_SHA1,
(guchar*)prof_identifier, strlen(prof_identifier),
uuid, strlen(uuid));
if (g_strcmp0(&tmp[36], hmac) == 0) {
if (g_strcmp0(&tmp_id[CON_RAND_ID_LEN], hmac) == 0) {
ret = TRUE;
}
g_free(uuid);
g_free(hmac);
}
free(tmp);
}
}