initial commit

iris-legacy/iris/xmpp-im/xmpp_task.cpp

@@ -0,0 +1,301 @@
+/*
+ * Copyright (C) 2003  Justin Karneges
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * This library 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
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ *
+ */
+
+#include <QTimer>
+#include <qplatformdefs.h>
+
+#include "safedelete.h"
+#include "xmpp_task.h"
+#include "xmpp_client.h"
+#include "xmpp_xmlcommon.h"
+
+using namespace XMPP;
+
+class Task::TaskPrivate
+{
+public:
+	TaskPrivate() {}
+
+	QString id;
+	bool success;
+	int statusCode;
+	QString statusString;
+	Client *client;
+	bool insig, deleteme, autoDelete;
+	bool done;
+};
+
+Task::Task(Task *parent)
+:QObject(parent)
+{
+	init();
+
+	d->client = parent->client();
+	d->id = client()->genUniqueId();
+	connect(d->client, SIGNAL(disconnected()), SLOT(clientDisconnected()));
+}
+
+Task::Task(Client *parent, bool)
+:QObject(0)
+{
+	init();
+
+	d->client = parent;
+	connect(d->client, SIGNAL(disconnected()), SLOT(clientDisconnected()));
+}
+
+Task::~Task()
+{
+	delete d;
+}
+
+void Task::init()
+{
+	d = new TaskPrivate;
+	d->success = false;
+	d->insig = false;
+	d->deleteme = false;
+	d->autoDelete = false;
+	d->done = false;
+}
+
+Task *Task::parent() const
+{
+	return (Task *)QObject::parent();
+}
+
+Client *Task::client() const
+{
+	return d->client;
+}
+
+QDomDocument *Task::doc() const
+{
+	return client()->doc();
+}
+
+QString Task::id() const
+{
+	return d->id;
+}
+
+bool Task::success() const
+{
+	return d->success;
+}
+
+int Task::statusCode() const
+{
+	return d->statusCode;
+}
+
+const QString & Task::statusString() const
+{
+	return d->statusString;
+}
+
+void Task::go(bool autoDelete)
+{
+	d->autoDelete = autoDelete;
+
+	if (!client() || !&client()->stream()) {
+		qWarning("Task::go(): attempted to send a task over the broken connection.");
+		if (autoDelete) {
+			deleteLater();
+		}
+	}
+	else {
+		onGo();
+	}
+}
+
+bool Task::take(const QDomElement &x)
+{
+	const QObjectList p = children();
+
+	// pass along the xml
+	Task *t;
+	for(QObjectList::ConstIterator it = p.begin(); it != p.end(); ++it) {
+		QObject *obj = *it;
+		if(!obj->inherits("XMPP::Task"))
+			continue;
+
+		t = static_cast<Task*>(obj);
+		if(t->take(x))
+			return true;
+	}
+
+	return false;
+}
+
+void Task::safeDelete()
+{
+	if(d->deleteme)
+		return;
+
+	d->deleteme = true;
+	if(!d->insig)
+		SafeDelete::deleteSingle(this);
+}
+
+void Task::onGo()
+{
+}
+
+void Task::onDisconnect()
+{
+	if(!d->done) {
+		d->success = false;
+		d->statusCode = ErrDisc;
+		d->statusString = tr("Disconnected");
+
+		// delay this so that tasks that react don't block the shutdown
+		QTimer::singleShot(0, this, SLOT(done()));
+	}
+}
+
+void Task::send(const QDomElement &x)
+{
+	client()->send(x);
+}
+
+void Task::setSuccess(int code, const QString &str)
+{
+	if(!d->done) {
+		d->success = true;
+		d->statusCode = code;
+		d->statusString = str;
+		done();
+	}
+}
+
+void Task::setError(const QDomElement &e)
+{
+	if(!d->done) {
+		d->success = false;
+		getErrorFromElement(e, d->client->streamBaseNS(), &d->statusCode, &d->statusString);
+		done();
+	}
+}
+
+void Task::setError(int code, const QString &str)
+{
+	if(!d->done) {
+		d->success = false;
+		d->statusCode = code;
+		d->statusString = str;
+		done();
+	}
+}
+
+void Task::done()
+{
+	if(d->done || d->insig)
+		return;
+	d->done = true;
+
+	if(d->deleteme || d->autoDelete)
+		d->deleteme = true;
+
+	d->insig = true;
+	finished();
+	d->insig = false;
+
+	if(d->deleteme)
+		SafeDelete::deleteSingle(this);
+}
+
+void Task::clientDisconnected()
+{
+	onDisconnect();
+}
+
+void Task::debug(const char *fmt, ...)
+{
+	Q_UNUSED(fmt);
+#if 0
+	char *buf;
+	QString str;
+	int size = 1024;
+	int r;
+
+	do {
+		buf = new char[size];
+		va_list ap;
+		va_start(ap, fmt);
+		r = QT_VSNPRINTF(buf, size, fmt, ap);
+		va_end(ap);
+
+		if(r != -1)
+			str = QString(buf);
+
+		delete [] buf;
+
+		size *= 2;
+	} while(r == -1);
+
+	debug(str);
+#endif
+}
+
+void Task::debug(const QString &str)
+{
+	client()->debug(QString("%1: ").arg(metaObject()->className()) + str);
+}
+
+bool Task::iqVerify(const QDomElement &x, const Jid &to, const QString &id, const QString &xmlns)
+{
+	if(x.tagName() != "iq")
+		return false;
+
+	Jid from(x.attribute("from"));
+	Jid local = client()->jid();
+	Jid server = client()->host();
+
+	// empty 'from' ?
+	if(from.isEmpty()) {
+		// allowed if we are querying the server
+		if(!to.isEmpty() && !to.compare(server))
+			return false;
+	}
+	// from ourself?
+	else if(from.compare(local, false) || from.compare(local.domain(),false)) {
+		// allowed if we are querying ourself or the server
+		if(!to.isEmpty() && !to.compare(local, false) && !to.compare(server))
+			return false;
+	}
+	// from anywhere else?
+	else {
+		if(!from.compare(to))
+			return false;
+	}
+
+	if(!id.isEmpty()) {
+		if(x.attribute("id") != id)
+			return false;
+	}
+
+	if(!xmlns.isEmpty()) {
+		if(queryNS(x) != xmlns)
+			return false;
+	}
+
+	return true;
+}
+