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Use one stanza handler per type (message, iq, presence)

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Allows plugins to stop stanza processing
This commit is contained in:
James Booth
2016-03-28 01:25:48 +01:00
parent 8933d59b03
commit d39e48ba18
8 changed files with 457 additions and 638 deletions
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239
src/xmpp/message.c
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@@ -60,33 +60,72 @@
#include "pgp/gpg.h"
#include "plugins/plugins.h"
#define HANDLE(ns, type, func) xmpp_handler_add(conn, func, ns, STANZA_NAME_MESSAGE, type, ctx)
static int _message_handler(xmpp_conn_t *const conn, xmpp_stanza_t *const stanza, void *const userdata);
// regular handlers
static int _groupchat_handler(xmpp_conn_t *const conn, xmpp_stanza_t *const stanza, void *const userdata);
static int _chat_handler(xmpp_conn_t *const conn, xmpp_stanza_t *const stanza, void *const userdata);
static int _muc_user_handler(xmpp_conn_t *const conn, xmpp_stanza_t *const stanza, void *const userdata);
static int _conference_handler(xmpp_conn_t *const conn, xmpp_stanza_t *const stanza, void *const userdata);
static int _captcha_handler(xmpp_conn_t *const conn, xmpp_stanza_t *const stanza, void *const userdata);
static int _message_error_handler(xmpp_conn_t *const conn, xmpp_stanza_t *const stanza, void *const userdata);
static int _receipt_received_handler(xmpp_conn_t *const conn, xmpp_stanza_t *const stanza, void *const userdata);
static void _handle_error(xmpp_stanza_t *const stanza);
static void _handle_groupchat(xmpp_stanza_t *const stanza);
static void _handel_muc_user(xmpp_stanza_t *const stanza);
static void _handle_conference(xmpp_stanza_t *const stanza);
static void _handle_captcha(xmpp_stanza_t *const stanza);
static void _handle_receipt_received(xmpp_stanza_t *const stanza);
static void _handle_chat(xmpp_stanza_t *const stanza);
static void _send_message_stanza(xmpp_conn_t *const conn, xmpp_stanza_t *const stanza);
static gboolean _receive_message_stanza(xmpp_stanza_t *const stanza);
static void _send_message_stanza(xmpp_stanza_t *const stanza);
static int
_message_handler(xmpp_conn_t *const conn, xmpp_stanza_t *const stanza, void *const userdata)
{
log_debug("Message stanza handler fired");
char *text;
size_t text_size;
xmpp_stanza_to_text(stanza, &text, &text_size);
gboolean cont = plugins_on_message_stanza_receive(text);
if (!cont) {
return 1;
}
char *type = xmpp_stanza_get_type(stanza);
if (g_strcmp0(type, STANZA_TYPE_ERROR) == 0) {
_handle_error(stanza);
}
if (g_strcmp0(type, STANZA_TYPE_GROUPCHAT) == 0) {
_handle_groupchat(stanza);
}
xmpp_stanza_t *mucuser = xmpp_stanza_get_child_by_ns(stanza, STANZA_NS_MUC_USER);
if (mucuser) {
_handel_muc_user(stanza);
}
xmpp_stanza_t *conference = xmpp_stanza_get_child_by_ns(stanza, STANZA_NS_CONFERENCE);
if (conference) {
_handle_conference(stanza);
}
xmpp_stanza_t *captcha = xmpp_stanza_get_child_by_ns(stanza, STANZA_NS_CAPTCHA);
if (captcha) {
_handle_captcha(stanza);
}
xmpp_stanza_t *receipts = xmpp_stanza_get_child_by_ns(stanza, STANZA_NS_RECEIPTS);
if (receipts) {
_handle_receipt_received(stanza);
}
_handle_chat(stanza);
return 1;
}
void
message_add_handlers(void)
{
xmpp_conn_t * const conn = connection_get_conn();
xmpp_ctx_t * const ctx = connection_get_ctx();
HANDLE(NULL, STANZA_TYPE_ERROR, _message_error_handler);
HANDLE(NULL, STANZA_TYPE_GROUPCHAT, _groupchat_handler);
HANDLE(NULL, NULL, _chat_handler);
HANDLE(STANZA_NS_MUC_USER, NULL, _muc_user_handler);
HANDLE(STANZA_NS_CONFERENCE, NULL, _conference_handler);
HANDLE(STANZA_NS_CAPTCHA, NULL, _captcha_handler);
HANDLE(STANZA_NS_RECEIPTS, NULL, _receipt_received_handler);
xmpp_handler_add(conn, _message_handler, NULL, STANZA_NAME_MESSAGE, NULL, ctx);
}
static char*
@@ -126,7 +165,6 @@ _session_state(const char *const barejid)
char*
message_send_chat(const char *const barejid, const char *const msg)
{
xmpp_conn_t * const conn = connection_get_conn();
xmpp_ctx_t * const ctx = connection_get_ctx();
char *state = _session_state(barejid);
@@ -144,7 +182,7 @@ message_send_chat(const char *const barejid, const char *const msg)
stanza_attach_receipt_request(ctx, message);
}
_send_message_stanza(conn, message);
_send_message_stanza(message);
xmpp_stanza_release(message);
return id;
@@ -153,7 +191,6 @@ message_send_chat(const char *const barejid, const char *const msg)
char*
message_send_chat_pgp(const char *const barejid, const char *const msg)
{
xmpp_conn_t * const conn = connection_get_conn();
xmpp_ctx_t * const ctx = connection_get_ctx();
char *state = _session_state(barejid);
@@ -200,7 +237,7 @@ message_send_chat_pgp(const char *const barejid, const char *const msg)
stanza_attach_receipt_request(ctx, message);
}
_send_message_stanza(conn, message);
_send_message_stanza(message);
xmpp_stanza_release(message);
return id;
@@ -209,7 +246,6 @@ message_send_chat_pgp(const char *const barejid, const char *const msg)
char*
message_send_chat_otr(const char *const barejid, const char *const msg)
{
xmpp_conn_t * const conn = connection_get_conn();
xmpp_ctx_t * const ctx = connection_get_ctx();
char *state = _session_state(barejid);
@@ -231,7 +267,7 @@ message_send_chat_otr(const char *const barejid, const char *const msg)
stanza_attach_receipt_request(ctx, message);
}
_send_message_stanza(conn, message);
_send_message_stanza(message);
xmpp_stanza_release(message);
return id;
@@ -240,37 +276,34 @@ message_send_chat_otr(const char *const barejid, const char *const msg)
void
message_send_private(const char *const fulljid, const char *const msg)
{
xmpp_conn_t * const conn = connection_get_conn();
xmpp_ctx_t * const ctx = connection_get_ctx();
char *id = create_unique_id("prv");
xmpp_stanza_t *message = stanza_create_message(ctx, id, fulljid, STANZA_TYPE_CHAT, msg);
free(id);
_send_message_stanza(conn, message);
_send_message_stanza(message);
xmpp_stanza_release(message);
}
void
message_send_groupchat(const char *const roomjid, const char *const msg)
{
xmpp_conn_t * const conn = connection_get_conn();
xmpp_ctx_t * const ctx = connection_get_ctx();
char *id = create_unique_id("muc");
xmpp_stanza_t *message = stanza_create_message(ctx, id, roomjid, STANZA_TYPE_GROUPCHAT, msg);
free(id);
_send_message_stanza(conn, message);
_send_message_stanza(message);
xmpp_stanza_release(message);
}
void
message_send_groupchat_subject(const char *const roomjid, const char *const subject)
{
xmpp_conn_t * const conn = connection_get_conn();
xmpp_ctx_t * const ctx = connection_get_ctx();
xmpp_stanza_t *message = stanza_create_room_subject_message(ctx, roomjid, subject);
_send_message_stanza(conn, message);
_send_message_stanza(message);
xmpp_stanza_release(message);
}
@@ -278,11 +311,9 @@ void
message_send_invite(const char *const roomjid, const char *const contact,
const char *const reason)
{
xmpp_conn_t * const conn = connection_get_conn();
xmpp_ctx_t * const ctx = connection_get_ctx();
xmpp_stanza_t *stanza;
muc_member_type_t member_type = muc_member_type(roomjid);
if (member_type == MUC_MEMBER_TYPE_PUBLIC) {
log_debug("Sending direct invite to %s, for %s", contact, roomjid);
@@ -293,18 +324,17 @@ message_send_invite(const char *const roomjid, const char *const contact,
stanza = stanza_create_mediated_invite(ctx, roomjid, contact, reason);
}
_send_message_stanza(conn, stanza);
_send_message_stanza(stanza);
xmpp_stanza_release(stanza);
}
void
message_send_composing(const char *const jid)
{
xmpp_conn_t * const conn = connection_get_conn();
xmpp_ctx_t * const ctx = connection_get_ctx();
xmpp_stanza_t *stanza = stanza_create_chat_state(ctx, jid, STANZA_NAME_COMPOSING);
_send_message_stanza(conn, stanza);
_send_message_stanza(stanza);
xmpp_stanza_release(stanza);
}
@@ -312,39 +342,34 @@ message_send_composing(const char *const jid)
void
message_send_paused(const char *const jid)
{
xmpp_conn_t * const conn = connection_get_conn();
xmpp_ctx_t * const ctx = connection_get_ctx();
xmpp_stanza_t *stanza = stanza_create_chat_state(ctx, jid, STANZA_NAME_PAUSED);
_send_message_stanza(conn, stanza);
_send_message_stanza(stanza);
xmpp_stanza_release(stanza);
}
void
message_send_inactive(const char *const jid)
{
xmpp_conn_t * const conn = connection_get_conn();
xmpp_ctx_t * const ctx = connection_get_ctx();
xmpp_stanza_t *stanza = stanza_create_chat_state(ctx, jid, STANZA_NAME_INACTIVE);
_send_message_stanza(conn, stanza);
_send_message_stanza(stanza);
xmpp_stanza_release(stanza);
}
void
message_send_gone(const char *const jid)
{
xmpp_conn_t * const conn = connection_get_conn();
xmpp_ctx_t * const ctx = connection_get_ctx();
xmpp_stanza_t *stanza = stanza_create_chat_state(ctx, jid, STANZA_NAME_GONE);
_send_message_stanza(conn, stanza);
_send_message_stanza(stanza);
xmpp_stanza_release(stanza);
}
static int
_message_error_handler(xmpp_conn_t *const conn, xmpp_stanza_t *const stanza, void *const userdata)
static void
_handle_error(xmpp_stanza_t *const stanza)
{
log_debug("Message stanza error handler fired");
char *id = xmpp_stanza_get_id(stanza);
char *jid = xmpp_stanza_get_attribute(stanza, STANZA_ATTR_FROM);
xmpp_stanza_t *error_stanza = xmpp_stanza_get_child_by_name(stanza, STANZA_NAME_ERROR);
@@ -388,39 +413,35 @@ _message_error_handler(xmpp_conn_t *const conn, xmpp_stanza_t *const stanza, voi
}
free(err_msg);
return 1;
}
static int
_muc_user_handler(xmpp_conn_t *const conn, xmpp_stanza_t *const stanza, void *const userdata)
static void
_handel_muc_user(xmpp_stanza_t *const stanza)
{
log_debug("Message stanza muc user handler fired");
xmpp_ctx_t *ctx = connection_get_ctx();
xmpp_stanza_t *xns_muc_user = xmpp_stanza_get_child_by_ns(stanza, STANZA_NS_MUC_USER);
char *room = xmpp_stanza_get_attribute(stanza, STANZA_ATTR_FROM);
if (!room) {
log_warning("Message received with no from attribute, ignoring");
return 1;
return;
}
// XEP-0045
xmpp_stanza_t *invite = xmpp_stanza_get_child_by_name(xns_muc_user, STANZA_NAME_INVITE);
if (!invite) {
return 1;
return;
}
char *invitor_jid = xmpp_stanza_get_attribute(invite, STANZA_ATTR_FROM);
if (!invitor_jid) {
log_warning("Chat room invite received with no from attribute");
return 1;
return;
}
Jid *jidp = jid_create(invitor_jid);
if (!jidp) {
return 1;
return;
}
char *invitor = jidp->barejid;
@@ -444,33 +465,29 @@ _muc_user_handler(xmpp_conn_t *const conn, xmpp_stanza_t *const stanza, void *co
if (password) {
xmpp_free(ctx, password);
}
return 1;
}
static int
_conference_handler(xmpp_conn_t *const conn, xmpp_stanza_t *const stanza, void *const userdata)
static void
_handle_conference(xmpp_stanza_t *const stanza)
{
log_debug("Message stanza conference handler fired");
xmpp_stanza_t *xns_conference = xmpp_stanza_get_child_by_ns(stanza, STANZA_NS_CONFERENCE);
char *from = xmpp_stanza_get_attribute(stanza, STANZA_ATTR_FROM);
if (!from) {
log_warning("Message received with no from attribute, ignoring");
return 1;
return;
}
Jid *jidp = jid_create(from);
if (!jidp) {
return 1;
return;
}
// XEP-0249
char *room = xmpp_stanza_get_attribute(xns_conference, STANZA_ATTR_JID);
if (!room) {
jid_destroy(jidp);
return 1;
return;
}
char *reason = xmpp_stanza_get_attribute(xns_conference, STANZA_ATTR_REASON);
@@ -478,45 +495,37 @@ _conference_handler(xmpp_conn_t *const conn, xmpp_stanza_t *const stanza, void *
sv_ev_room_invite(INVITE_DIRECT, jidp->barejid, room, reason, password);
jid_destroy(jidp);
return 1;
}
static int
_captcha_handler(xmpp_conn_t *const conn, xmpp_stanza_t *const stanza, void *const userdata)
static void
_handle_captcha(xmpp_stanza_t *const stanza)
{
log_debug("Message stanza captcha handler fired");
xmpp_ctx_t *ctx = connection_get_ctx();
char *from = xmpp_stanza_get_attribute(stanza, STANZA_ATTR_FROM);
if (!from) {
log_warning("Message received with no from attribute, ignoring");
return 1;
return;
}
// XEP-0158
xmpp_stanza_t *body = xmpp_stanza_get_child_by_name(stanza, STANZA_NAME_BODY);
if (!body) {
return 1;
return;
}
char *message = xmpp_stanza_get_text(body);
if (!message) {
return 1;
return;
}
sv_ev_room_broadcast(from, message);
xmpp_free(ctx, message);
return 1;
}
static int
_groupchat_handler(xmpp_conn_t *const conn, xmpp_stanza_t *const stanza, void *const userdata)
static void
_handle_groupchat(xmpp_stanza_t *const stanza)
{
log_debug("Message stanza groupchat handler fired");
xmpp_ctx_t *ctx = connection_get_ctx();
char *message = NULL;
char *room_jid = xmpp_stanza_get_attribute(stanza, STANZA_ATTR_FROM);
@@ -530,7 +539,7 @@ _groupchat_handler(xmpp_conn_t *const conn, xmpp_stanza_t *const stanza, void *c
xmpp_free(ctx, message);
jid_destroy(jid);
return 1;
return;
}
// handle room broadcasts
@@ -538,33 +547,33 @@ _groupchat_handler(xmpp_conn_t *const conn, xmpp_stanza_t *const stanza, void *c
xmpp_stanza_t *body = xmpp_stanza_get_child_by_name(stanza, STANZA_NAME_BODY);
if (!body) {
jid_destroy(jid);
return 1;
return;
}
message = xmpp_stanza_get_text(body);
if (!message) {
jid_destroy(jid);
return 1;
return;
}
sv_ev_room_broadcast(room_jid, message);
xmpp_free(ctx, message);
jid_destroy(jid);
return 1;
return;
}
if (!jid_is_valid_room_form(jid)) {
log_error("Invalid room JID: %s", jid->str);
jid_destroy(jid);
return 1;
return;
}
// room not active in profanity
if (!muc_active(jid->barejid)) {
log_error("Message received for inactive chat room: %s", jid->str);
jid_destroy(jid);
return 1;
return;
}
xmpp_stanza_t *body = xmpp_stanza_get_child_by_name(stanza, STANZA_NAME_BODY);
@@ -572,13 +581,13 @@ _groupchat_handler(xmpp_conn_t *const conn, xmpp_stanza_t *const stanza, void *c
// check for and deal with message
if (!body) {
jid_destroy(jid);
return 1;
return;
}
message = xmpp_stanza_get_text(body);
if (!message) {
jid_destroy(jid);
return 1;
return;
}
// determine if the notifications happened whilst offline
@@ -592,14 +601,11 @@ _groupchat_handler(xmpp_conn_t *const conn, xmpp_stanza_t *const stanza, void *c
xmpp_free(ctx, message);
jid_destroy(jid);
return 1;
}
void
_message_send_receipt(const char *const fulljid, const char *const message_id)
{
xmpp_conn_t * const conn = connection_get_conn();
xmpp_ctx_t * const ctx = connection_get_ctx();
xmpp_stanza_t *message = xmpp_stanza_new(ctx);
xmpp_stanza_set_name(message, STANZA_NAME_MESSAGE);
@@ -616,36 +622,32 @@ _message_send_receipt(const char *const fulljid, const char *const message_id)
xmpp_stanza_add_child(message, receipt);
xmpp_stanza_release(receipt);
_send_message_stanza(conn, message);
_send_message_stanza(message);
xmpp_stanza_release(message);
}
static int
_receipt_received_handler(xmpp_conn_t *const conn, xmpp_stanza_t *const stanza, void *const userdata)
static void
_handle_receipt_received(xmpp_stanza_t *const stanza)
{
log_debug("Message stanza receipt received handler fired");
xmpp_stanza_t *receipt = xmpp_stanza_get_child_by_ns(stanza, STANZA_NS_RECEIPTS);
char *name = xmpp_stanza_get_name(receipt);
if (g_strcmp0(name, "received") != 0) {
return 1;
return;
}
char *id = xmpp_stanza_get_attribute(receipt, STANZA_ATTR_ID);
if (!id) {
return 1;
return;
}
char *fulljid = xmpp_stanza_get_attribute(stanza, STANZA_ATTR_FROM);
if (!fulljid) {
return 1;
return;
}
Jid *jidp = jid_create(fulljid);
sv_ev_message_receipt(jidp->barejid, id);
jid_destroy(jidp);
return 1;
}
void
@@ -761,33 +763,26 @@ _handle_carbons(xmpp_stanza_t *const stanza)
return FALSE;
}
static int
_chat_handler(xmpp_conn_t *const conn, xmpp_stanza_t *const stanza, void *const userdata)
static void
_handle_chat(xmpp_stanza_t *const stanza)
{
log_debug("Message stanza chat handler fired");
gboolean cont = _receive_message_stanza(stanza);
if (!cont) {
return 1;
}
// ignore if type not chat or absent
char *type = xmpp_stanza_get_type(stanza);
if (!(g_strcmp0(type, "chat") == 0 || type == NULL)) {
return 1;
return;
}
// check if carbon message
gboolean res = _handle_carbons(stanza);
if (res) {
return 1;
return;
}
// ignore handled namespaces
xmpp_stanza_t *conf = xmpp_stanza_get_child_by_ns(stanza, STANZA_NS_CONFERENCE);
xmpp_stanza_t *captcha = xmpp_stanza_get_child_by_ns(stanza, STANZA_NS_CAPTCHA);
if (conf || captcha) {
return 1;
return;
}
// some clients send the mucuser namespace with private messages
@@ -796,7 +791,7 @@ _chat_handler(xmpp_conn_t *const conn, xmpp_stanza_t *const stanza, void *const
xmpp_stanza_t *mucuser = xmpp_stanza_get_child_by_ns(stanza, STANZA_NS_MUC_USER);
xmpp_stanza_t *body = xmpp_stanza_get_child_by_name(stanza, STANZA_NAME_BODY);
if (mucuser && body == NULL) {
return 1;
return;
}
gchar *from = xmpp_stanza_get_attribute(stanza, STANZA_ATTR_FROM);
@@ -806,7 +801,7 @@ _chat_handler(xmpp_conn_t *const conn, xmpp_stanza_t *const stanza, void *const
if (muc_active(jid->barejid)) {
_private_chat_handler(stanza, jid->fulljid);
jid_destroy(jid);
return 1;
return;
}
// standard chat message, use jid without resource
@@ -852,16 +847,16 @@ _chat_handler(xmpp_conn_t *const conn, xmpp_stanza_t *const stanza, void *const
if (timestamp) g_date_time_unref(timestamp);
jid_destroy(jid);
return 1;
}
static void
_send_message_stanza(xmpp_conn_t *const conn, xmpp_stanza_t *const stanza)
_send_message_stanza(xmpp_stanza_t *const stanza)
{
char *text;
size_t text_size;
xmpp_stanza_to_text(stanza, &text, &text_size);
xmpp_conn_t *conn = connection_get_conn();
char *plugin_text = plugins_on_message_stanza_send(text);
if (plugin_text) {
xmpp_send_raw_string(conn, "%s", plugin_text);
@@ -869,13 +864,3 @@ _send_message_stanza(xmpp_conn_t *const conn, xmpp_stanza_t *const stanza)
xmpp_send_raw_string(conn, "%s", text);
}
}
static gboolean
_receive_message_stanza(xmpp_stanza_t *const stanza)
{
char *text;
size_t text_size;
xmpp_stanza_to_text(stanza, &text, &text_size);
return plugins_on_message_stanza_receive(text);
}