summaryrefslogtreecommitdiffstats
diff options
context:
space:
mode:
authorRemko Tronçon <git@el-tramo.be>2011-09-30 20:58:49 (GMT)
committerRemko Tronçon <git@el-tramo.be>2011-09-30 21:04:33 (GMT)
commita1b590f2e469191381b5eb8613b5618ffbcafcc4 (patch)
tree3aa0843c76524d817f0713d6d061cdc380c13a59 /Swiften/Disco/DiscoServiceWalker.cpp
parentd0081aeea512cc367a1aa9939693d8247b0571af (diff)
downloadswift-contrib-a1b590f2e469191381b5eb8613b5618ffbcafcc4.zip
swift-contrib-a1b590f2e469191381b5eb8613b5618ffbcafcc4.tar.bz2
Moved DiscoServiceWalker to Swiften.
Diffstat (limited to 'Swiften/Disco/DiscoServiceWalker.cpp')
-rw-r--r--Swiften/Disco/DiscoServiceWalker.cpp132
1 files changed, 132 insertions, 0 deletions
diff --git a/Swiften/Disco/DiscoServiceWalker.cpp b/Swiften/Disco/DiscoServiceWalker.cpp
new file mode 100644
index 0000000..c8c3e1b
--- /dev/null
+++ b/Swiften/Disco/DiscoServiceWalker.cpp
@@ -0,0 +1,132 @@
+/*
+ * Copyright (c) 2010 Kevin Smith
+ * Licensed under the GNU General Public License v3.
+ * See Documentation/Licenses/GPLv3.txt for more information.
+ */
+
+#include <Swiften/Disco/DiscoServiceWalker.h>
+
+#include <Swiften/Base/Log.h>
+#include <Swiften/Base/foreach.h>
+
+#include <boost/bind.hpp>
+
+namespace Swift {
+
+DiscoServiceWalker::DiscoServiceWalker(const JID& service, IQRouter* iqRouter, size_t maxSteps) : service_(service), iqRouter_(iqRouter), maxSteps_(maxSteps), active_(false) {
+
+}
+
+void DiscoServiceWalker::beginWalk() {
+ SWIFT_LOG(debug) << "Starting walk to " << service_ << std::endl;
+ assert(!active_);
+ assert(servicesBeingSearched_.empty());
+ active_ = true;
+ walkNode(service_);
+}
+
+void DiscoServiceWalker::endWalk() {
+ if (active_) {
+ SWIFT_LOG(debug) << "Ending walk to " << service_ << std::endl;
+ foreach (GetDiscoInfoRequest::ref request, pendingDiscoInfoRequests_) {
+ request->onResponse.disconnect(boost::bind(&DiscoServiceWalker::handleDiscoInfoResponse, this, _1, _2, request));
+ }
+ foreach (GetDiscoItemsRequest::ref request, pendingDiscoItemsRequests_) {
+ request->onResponse.disconnect(boost::bind(&DiscoServiceWalker::handleDiscoItemsResponse, this, _1, _2, request));
+ }
+ active_ = false;
+ }
+}
+
+void DiscoServiceWalker::walkNode(const JID& jid) {
+ SWIFT_LOG(debug) << "Walking node " << jid << std::endl;
+ servicesBeingSearched_.insert(jid);
+ searchedServices_.insert(jid);
+ GetDiscoInfoRequest::ref discoInfoRequest = GetDiscoInfoRequest::create(jid, iqRouter_);
+ discoInfoRequest->onResponse.connect(boost::bind(&DiscoServiceWalker::handleDiscoInfoResponse, this, _1, _2, discoInfoRequest));
+ pendingDiscoInfoRequests_.insert(discoInfoRequest);
+ discoInfoRequest->send();
+}
+
+void DiscoServiceWalker::handleDiscoInfoResponse(boost::shared_ptr<DiscoInfo> info, ErrorPayload::ref error, GetDiscoInfoRequest::ref request) {
+ /* If we got canceled, don't do anything */
+ if (!active_) {
+ return;
+ }
+
+ SWIFT_LOG(debug) << "Disco info response from " << request->getReceiver() << std::endl;
+
+ pendingDiscoInfoRequests_.erase(request);
+ if (error) {
+ handleDiscoError(request->getReceiver(), error);
+ return;
+ }
+
+ bool couldContainServices = false;
+ foreach (DiscoInfo::Identity identity, info->getIdentities()) {
+ if (identity.getCategory() == "server") {
+ couldContainServices = true;
+ }
+ }
+ bool completed = false;
+ if (couldContainServices) {
+ GetDiscoItemsRequest::ref discoItemsRequest = GetDiscoItemsRequest::create(request->getReceiver(), iqRouter_);
+ discoItemsRequest->onResponse.connect(boost::bind(&DiscoServiceWalker::handleDiscoItemsResponse, this, _1, _2, discoItemsRequest));
+ pendingDiscoItemsRequests_.insert(discoItemsRequest);
+ discoItemsRequest->send();
+ } else {
+ completed = true;
+ }
+ onServiceFound(request->getReceiver(), info);
+ if (completed) {
+ markNodeCompleted(request->getReceiver());
+ }
+}
+
+void DiscoServiceWalker::handleDiscoItemsResponse(boost::shared_ptr<DiscoItems> items, ErrorPayload::ref error, GetDiscoItemsRequest::ref request) {
+ /* If we got canceled, don't do anything */
+ if (!active_) {
+ return;
+ }
+
+ SWIFT_LOG(debug) << "Received disco items from " << request->getReceiver() << std::endl;
+ pendingDiscoItemsRequests_.erase(request);
+ if (error) {
+ handleDiscoError(request->getReceiver(), error);
+ return;
+ }
+ foreach (DiscoItems::Item item, items->getItems()) {
+ if (item.getNode().empty()) {
+ /* Don't look at noded items. It's possible that this will exclude some services,
+ * but I've never seen one in the wild, and it's an easy fix for not looping.
+ */
+ if (std::find(searchedServices_.begin(), searchedServices_.end(), item.getJID()) == searchedServices_.end()) { /* Don't recurse infinitely */
+ SWIFT_LOG(debug) << "Received disco item " << item.getJID() << std::endl;
+ walkNode(item.getJID());
+ }
+ }
+ }
+ markNodeCompleted(request->getReceiver());
+}
+
+void DiscoServiceWalker::handleDiscoError(const JID& jid, ErrorPayload::ref /*error*/) {
+ SWIFT_LOG(debug) << "Disco error from " << jid << std::endl;
+ markNodeCompleted(jid);
+}
+
+void DiscoServiceWalker::markNodeCompleted(const JID& jid) {
+ SWIFT_LOG(debug) << "Node completed " << jid << std::endl;
+ servicesBeingSearched_.erase(jid);
+ /* All results are in */
+ if (servicesBeingSearched_.empty()) {
+ active_ = false;
+ onWalkComplete();
+ }
+ /* Check if we're on a rampage */
+ else if (searchedServices_.size() >= maxSteps_) {
+ active_ = false;
+ onWalkComplete();
+ }
+}
+
+}