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#include "FetchElement.h"
#include <glog/logging.h>
#include <event2/http.h>
#include <event2/http_struct.h>
#ifdef BUILD_AS_PLUGINS
#include <Pluma/Connector.hpp>
#endif
namespace uscxml {
#ifdef BUILD_AS_PLUGINS
PLUMA_CONNECTOR
bool connect(pluma::Host& host) {
host.add( new FetchElementProvider() );
return true;
}
#endif
boost::shared_ptr<ExecutableContentImpl> FetchElement::create(Interpreter* interpreter) {
boost::shared_ptr<FetchElement> invoker = boost::shared_ptr<FetchElement>(new FetchElement());
invoker->_interpreter = interpreter;
return invoker;
}
FetchElement::~FetchElement() {
URLFetcher::breakURL(_targetUrl);
}
void FetchElement::downloadCompleted(const URL& url) {
Event event;
event.name = _callback;
std::string content = url.getInContent();
std::map<std::string, std::string> headerFields = url.getInHeaderFields();
if (false) {
} else if (boost::iequals(_type, "text")) {
event.data.atom = content;
event.data.type = Data::VERBATIM;
} else if (boost::iequals(_type, "url")) {
} else if (boost::iequals(_type, "json")) {
event.data = Data::fromJSON(content);
} else if (boost::iequals(_type, "xml")) {
event = Event::fromXML(content);
}
_interpreter->receive(event);
}
void FetchElement::downloadFailed(const URL& url, int errorCode) {
Event event;
event.name = _callback + ".failed";
_interpreter->receive(event);
}
void FetchElement::enterElement(const Arabica::DOM::Node<std::string>& node) {
if (!HAS_ATTR(node, "target") && !HAS_ATTR(node, "targetexpr")) {
LOG(ERROR) << "Fetch element requires target or targetexpr";
return;
}
if (HAS_ATTR(node, "targetexpr") && !_interpreter->getDataModel()) {
LOG(ERROR) << "Fetch element with targetexpr requires datamodel";
return;
}
_target = (HAS_ATTR(node, "target") ? ATTR(node, "target") : _interpreter->getDataModel().evalAsString(ATTR(node, "targetexpr")));
if (!HAS_ATTR(node, "callback") && !HAS_ATTR(node, "callbackexpr")) {
LOG(ERROR) << "Fetch element requires callback or callbackexpr";
return;
}
if (HAS_ATTR(node, "callbackexpr") && !_interpreter->getDataModel()) {
LOG(ERROR) << "Fetch element with callbackexpr requires datamodel";
return;
}
_callback = (HAS_ATTR(node, "callback") ? ATTR(node, "callback") : _interpreter->getDataModel().evalAsString(ATTR(node, "callbackexpr")));
_type = (HAS_ATTR(node, "type") ? ATTR(node, "type") : "text");
if (!boost::iequals(_type, "text") &&
!boost::iequals(_type, "url") &&
!boost::iequals(_type, "json") &&
!boost::iequals(_type, "xml")) {
LOG(ERROR) << "Fetch element type attribute not one of text, url, json, xml.";
return;
}
_targetUrl = URL(_target);
if (!_targetUrl.isAbsolute()) {
if (!_interpreter->toAbsoluteURI(_targetUrl)) {
LOG(ERROR) << "Cannot transform " << _target << " into absolute URL";
return;
}
}
_targetUrl.addMonitor(this);
URLFetcher::fetchURL(_targetUrl);
}
void FetchElement::exitElement(const Arabica::DOM::Node<std::string>& node) {
}
}
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