libpurple/protocols/jabber/adhoccommands.c

Wed, 12 Jan 2011 14:31:52 +0000

author
Paul Aurich <darkrain42@pidgin.im>
date
Wed, 12 Jan 2011 14:31:52 +0000
changeset 31360
4ddd59618002
parent 31096
442e7d4f6cc7
child 32277
97f16af01a05
child 38258
9a6551eba09c
permissions
-rw-r--r--

jabber: Be friendlier to servers when we have nothing to say.

Don't try to reconnect immediately, but do so when we have something
to send. Untested (I'll test it later), but I'm hoping hsitas444 will
test it first. Refs #13008.

/*
 * purple - Jabber Protocol Plugin
 *
 * Purple is the legal property of its developers, whose names are too numerous
 * to list here.  Please refer to the COPYRIGHT file distributed with this
 * source distribution.
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.	 See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02111-1301  USA
 *
 */

#include "internal.h"

#include "adhoccommands.h"
#include <string.h>
#include "internal.h"
#include "xdata.h"
#include "iq.h"
#include "request.h"

static void do_adhoc_ignoreme(JabberStream *js, ...) {
	/* we don't have to do anything */
}

typedef struct _JabberAdHocActionInfo {
	char *sessionid;
	char *who;
	char *node;
	GList *actionslist;
} JabberAdHocActionInfo;

static void
jabber_adhoc_got_buddy_list(JabberStream *js, const char *from, xmlnode *query)
{
	JabberID *jid;
	JabberBuddy *jb;
	JabberBuddyResource *jbr = NULL;
	xmlnode *item;

	if ((jid = jabber_id_new(from))) {
		if (jid->resource && (jb = jabber_buddy_find(js, from, TRUE)))
			jbr = jabber_buddy_find_resource(jb, jid->resource);
		jabber_id_free(jid);
	}

	if(!jbr)
		return;

	if(jbr->commands) {
		/* since the list we just received is complete, wipe the old one */
		while(jbr->commands) {
			JabberAdHocCommands *cmd = jbr->commands->data;
			g_free(cmd->jid);
			g_free(cmd->node);
			g_free(cmd->name);
			g_free(cmd);
			jbr->commands = g_list_delete_link(jbr->commands, jbr->commands);
		}
	}

	for(item = query->child; item; item = item->next) {
		JabberAdHocCommands *cmd;
		if(item->type != XMLNODE_TYPE_TAG)
			continue;
		if(strcmp(item->name, "item"))
			continue;
		cmd = g_new0(JabberAdHocCommands, 1);

		cmd->jid = g_strdup(xmlnode_get_attrib(item,"jid"));
		cmd->node = g_strdup(xmlnode_get_attrib(item,"node"));
		cmd->name = g_strdup(xmlnode_get_attrib(item,"name"));

		jbr->commands = g_list_append(jbr->commands,cmd);
	}
}

void
jabber_adhoc_disco_result_cb(JabberStream *js, const char *from,
                             JabberIqType type, const char *id,
                             xmlnode *packet, gpointer data)
{
	xmlnode *query;
	const char *node;

	if (type == JABBER_IQ_ERROR)
		return;

	query = xmlnode_get_child_with_namespace(packet, "query", NS_DISCO_ITEMS);
	if (!query)
		return;
	node = xmlnode_get_attrib(query, "node");
	if (!purple_strequal(node, "http://jabber.org/protocol/commands"))
		return;

	jabber_adhoc_got_buddy_list(js, from, query);
}

static void jabber_adhoc_parse(JabberStream *js, const char *from,
                               JabberIqType type, const char *id,
                               xmlnode *packet, gpointer data);

static void do_adhoc_action_cb(JabberStream *js, xmlnode *result, const char *actionhandle, gpointer user_data) {
	xmlnode *command;
	GList *action;
	JabberAdHocActionInfo *actionInfo = user_data;
	JabberIq *iq = jabber_iq_new(js, JABBER_IQ_SET);
	jabber_iq_set_callback(iq, jabber_adhoc_parse, NULL);

	xmlnode_set_attrib(iq->node, "to", actionInfo->who);
	command = xmlnode_new_child(iq->node,"command");
	xmlnode_set_namespace(command,"http://jabber.org/protocol/commands");
	xmlnode_set_attrib(command,"sessionid",actionInfo->sessionid);
	xmlnode_set_attrib(command,"node",actionInfo->node);

	/* cancel is handled differently on ad-hoc commands than regular forms */
	if (purple_strequal(xmlnode_get_namespace(result), "jabber:x:data") &&
			purple_strequal(xmlnode_get_attrib(result, "type"), "cancel")) {
		xmlnode_set_attrib(command,"action","cancel");
	} else {
		if(actionhandle)
			xmlnode_set_attrib(command,"action",actionhandle);
		xmlnode_insert_child(command,result);
	}

	for(action = actionInfo->actionslist; action; action = g_list_next(action)) {
		char *handle = action->data;
		g_free(handle);
	}
	g_list_free(actionInfo->actionslist);
	g_free(actionInfo->sessionid);
	g_free(actionInfo->who);
	g_free(actionInfo->node);

	jabber_iq_send(iq);
}

static void
jabber_adhoc_parse(JabberStream *js, const char *from,
                   JabberIqType type, const char *id,
                   xmlnode *packet, gpointer data)
{
	xmlnode *command = xmlnode_get_child_with_namespace(packet, "command", "http://jabber.org/protocol/commands");
	const char *status = xmlnode_get_attrib(command,"status");
	xmlnode *xdata = xmlnode_get_child_with_namespace(command,"x","jabber:x:data");

	if (type == JABBER_IQ_ERROR) {
		char *msg = jabber_parse_error(js, packet, NULL);
		if(!msg)
			msg = g_strdup(_("Unknown Error"));

		purple_notify_error(NULL, _("Ad-Hoc Command Failed"),
							_("Ad-Hoc Command Failed"), msg);
		g_free(msg);
		return;
	}

	if(!status)
		return;

	if(!strcmp(status,"completed")) {
		/* display result */
		xmlnode *note = xmlnode_get_child(command,"note");

		if(note) {
			char *data = xmlnode_get_data(note);
			purple_notify_info(NULL, from, data, NULL);
			g_free(data);
		}

		if(xdata)
			jabber_x_data_request(js, xdata, (jabber_x_data_cb)do_adhoc_ignoreme, NULL);
		return;
	}
	if(!strcmp(status,"executing")) {
		/* this command needs more steps */
		xmlnode *actions, *action;
		int actionindex = 0;
		GList *actionslist = NULL;
		JabberAdHocActionInfo *actionInfo;
		if(!xdata)
			return; /* shouldn't happen */

		actions = xmlnode_get_child(command,"actions");
		if(!actions) {
			JabberXDataAction *defaultaction = g_new0(JabberXDataAction, 1);
			defaultaction->name = g_strdup(_("execute"));
			defaultaction->handle = g_strdup("execute");
			actionslist = g_list_append(actionslist, defaultaction);
		} else {
			const char *defaultactionhandle = xmlnode_get_attrib(actions, "execute");
			int index = 0;
			for(action = actions->child; action; action = action->next, ++index) {
				if(action->type == XMLNODE_TYPE_TAG) {
					JabberXDataAction *newaction = g_new0(JabberXDataAction, 1);
					newaction->name = g_strdup(_(action->name));
					newaction->handle = g_strdup(action->name);
					actionslist = g_list_append(actionslist, newaction);
					if(defaultactionhandle && !strcmp(defaultactionhandle, action->name))
						actionindex = index;
				}
			}
		}

		actionInfo = g_new0(JabberAdHocActionInfo, 1);
		actionInfo->sessionid = g_strdup(xmlnode_get_attrib(command,"sessionid"));
		actionInfo->who = g_strdup(from);
		actionInfo->node = g_strdup(xmlnode_get_attrib(command,"node"));
		actionInfo->actionslist = actionslist;

		jabber_x_data_request_with_actions(js,xdata,actionslist,actionindex,do_adhoc_action_cb,actionInfo);
	}
}

void jabber_adhoc_execute_action(PurpleBlistNode *node, gpointer data) {
	if (PURPLE_BLIST_NODE_IS_BUDDY(node)) {
		JabberAdHocCommands *cmd = data;
		PurpleBuddy *buddy = (PurpleBuddy *) node;
		PurpleAccount *account = purple_buddy_get_account(buddy);
		JabberStream *js = purple_account_get_connection(account)->proto_data;

		jabber_adhoc_execute(js, cmd);
	}
}

static void
jabber_adhoc_got_server_list(JabberStream *js, const char *from, xmlnode *query)
{
	xmlnode *item;

	if(!query)
		return;

	/* clean current list (just in case there is one) */
	while(js->commands) {
		JabberAdHocCommands *cmd = js->commands->data;
		g_free(cmd->jid);
		g_free(cmd->node);
		g_free(cmd->name);
		g_free(cmd);
		js->commands = g_list_delete_link(js->commands, js->commands);
	}

	/* re-fill list */
	for(item = query->child; item; item = item->next) {
		JabberAdHocCommands *cmd;
		if(item->type != XMLNODE_TYPE_TAG)
			continue;
		if(strcmp(item->name, "item"))
			continue;
		cmd = g_new0(JabberAdHocCommands, 1);
		cmd->jid = g_strdup(xmlnode_get_attrib(item,"jid"));
		cmd->node = g_strdup(xmlnode_get_attrib(item,"node"));
		cmd->name = g_strdup(xmlnode_get_attrib(item,"name"));

		js->commands = g_list_append(js->commands,cmd);
	}

	if (js->state == JABBER_STREAM_CONNECTED)
		purple_prpl_got_account_actions(purple_connection_get_account(js->gc));
}

static void
jabber_adhoc_server_got_list_cb(JabberStream *js, const char *from,
                                JabberIqType type, const char *id,
                                xmlnode *packet, gpointer data)
{
	xmlnode *query = xmlnode_get_child_with_namespace(packet, "query",
			NS_DISCO_ITEMS);

	jabber_adhoc_got_server_list(js, from, query);

}

void jabber_adhoc_got_list(JabberStream *js, const char *from, xmlnode *query)
{
	if (purple_strequal(from, js->user->domain)) {
		jabber_adhoc_got_server_list(js, from, query);
	} else {
		jabber_adhoc_got_buddy_list(js, from, query);
	}
}

void jabber_adhoc_server_get_list(JabberStream *js) {
	JabberIq *iq = jabber_iq_new_query(js, JABBER_IQ_GET, NS_DISCO_ITEMS);
	xmlnode *query = xmlnode_get_child_with_namespace(iq->node, "query",
			NS_DISCO_ITEMS);

	xmlnode_set_attrib(iq->node,"to",js->user->domain);
	xmlnode_set_attrib(query,"node","http://jabber.org/protocol/commands");

	jabber_iq_set_callback(iq,jabber_adhoc_server_got_list_cb,NULL);
	jabber_iq_send(iq);
}

void jabber_adhoc_execute(JabberStream *js, JabberAdHocCommands *cmd) {
	JabberIq *iq = jabber_iq_new(js, JABBER_IQ_SET);
	xmlnode *command = xmlnode_new_child(iq->node,"command");
	xmlnode_set_attrib(iq->node,"to",cmd->jid);
	xmlnode_set_namespace(command,"http://jabber.org/protocol/commands");
	xmlnode_set_attrib(command,"node",cmd->node);
	xmlnode_set_attrib(command,"action","execute");

	jabber_iq_set_callback(iq,jabber_adhoc_parse,NULL);

	jabber_iq_send(iq);
}

static void jabber_adhoc_server_execute(PurplePluginAction *action) {
	JabberAdHocCommands *cmd = action->user_data;
	if(cmd) {
		PurpleConnection *gc = (PurpleConnection *) action->context;
		JabberStream *js = gc->proto_data;

		jabber_adhoc_execute(js, cmd);
	}
}

void jabber_adhoc_init_server_commands(JabberStream *js, GList **m) {
	GList *cmdlst;
	JabberBuddy *jb;

	/* also add commands for other clients connected to the same account on another resource */
	char *accountname = g_strdup_printf("%s@%s", js->user->node, js->user->domain);
	if((jb = jabber_buddy_find(js, accountname, TRUE))) {
		GList *iter;
		for(iter = jb->resources; iter; iter = g_list_next(iter)) {
			JabberBuddyResource *jbr = iter->data;
			GList *riter;
			for(riter = jbr->commands; riter; riter = g_list_next(riter)) {
				JabberAdHocCommands *cmd = riter->data;
				char *cmdname = g_strdup_printf("%s (%s)",cmd->name,jbr->name);
				PurplePluginAction *act = purple_plugin_action_new(cmdname, jabber_adhoc_server_execute);
				act->user_data = cmd;
				*m = g_list_append(*m, act);
				g_free(cmdname);
			}
		}
	}
	g_free(accountname);

	/* now add server commands */
	for(cmdlst = js->commands; cmdlst; cmdlst = g_list_next(cmdlst)) {
		JabberAdHocCommands *cmd = cmdlst->data;
		PurplePluginAction *act = purple_plugin_action_new(cmd->name, jabber_adhoc_server_execute);
		act->user_data = cmd;
		*m = g_list_append(*m, act);
	}
}

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