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[ADD/WIP] Bridging Matrix redacts

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I'll still need to consider making redacts from other people count as
"moderations", whatever that is to Gajim, instead of a "self-redact".

Also, _please_, support it if you _ever_ wish adoption, XMPP users!
This commit is contained in:
LDA 2024-07-08 14:36:52 +02:00
commit 3c26ee6d22
5 changed files with 174 additions and 2 deletions
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68
src/XMPP/Stanza.c
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@ -15,6 +15,74 @@ XMPPSendPlain(XMPPComponent *comp, char *fr, char *to, char *msg, char *type, ch
Free(ident);
}
void
XMPPRetract(XMPPComponent *comp, char *fr, char *to, char *type, char *redact)
{
XMLElement *message;
char *ident = StrRandom(32), *from;
if (!comp || !fr || !to || !type || !redact)
{
Free(ident);
return;
}
message = XMLCreateTag("message");
XMLAddAttr(message, "from", (from = StrConcat(3, fr, "@", comp->host)));
XMLAddAttr(message, "to", to);
XMLAddAttr(message, "type", type);
XMLAddAttr(message, "id", ident);
{
XMLElement *apply_to, *retract, *body, *txt, *fallback;
apply_to = XMLCreateTag("apply-to");
XMLAddAttr(apply_to, "xmlns", "urn:xmpp:fasten:0");
XMLAddAttr(apply_to, "id", redact);
{
retract = XMLCreateTag("retract");
XMLAddAttr(retract, "xmlns", "urn:xmpp:message-retract:0");
XMLAddChild(apply_to, retract);
}
XMLAddChild(message, apply_to);
retract = XMLCreateTag("retract");
XMLAddAttr(retract, "xmlns", "urn:xmpp:message-retract:1");
XMLAddAttr(retract, "id", redact);
XMLAddChild(message, retract);
fallback = XMLCreateTag("fallback");
XMLAddAttr(fallback, "xmlns", "urn:xmpp:fallback:0");
XMLAddAttr(fallback, "for", "urn:xmpp:message-retract:0");
XMLAddChild(message, fallback);
fallback = XMLCreateTag("fallback");
XMLAddAttr(fallback, "xmlns", "urn:xmpp:fallback:0");
XMLAddAttr(fallback, "for", "urn:xmpp:message-retract:1");
XMLAddChild(message, fallback);
body = XMLCreateTag("body");
txt = XMLCreateText(
"This person attempted to retract a previous message, "
"but your client does not yet support the 0.4.1 version of "
"XEP-0424.\n\n"
"(_Parsee is jealous of being able to read such messages._)"
);
XMLAddChild(body, txt);
XMLAddChild(message, body);
}
pthread_mutex_lock(&comp->write_lock);
XMLEncode(comp->stream, message);
StreamFlush(comp->stream);
XMLFreeElement(message);
pthread_mutex_unlock(&comp->write_lock);
Free(from);
Free(ident);
}
void
XMPPSendPlainID(XMPPComponent *comp, char *fr, char *to, char *msg, char *type, char *rst, char *rse, char *event_id, char *oob, char *edit, char *ident)
{