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#include "DirMonInvoker.h"
#include <glog/logging.h>
#ifdef BUILD_AS_PLUGINS
#include <Pluma/Connector.hpp>
#endif
#include <sys/stat.h>
#ifndef WIN32
#include <dirent.h>
#else
#include <strsafe.h>
#endif
namespace uscxml {
#ifdef BUILD_AS_PLUGINS
PLUMA_CONNECTOR
bool connect(pluma::Host& host) {
host.add( new DirMonInvokerProvider() );
return true;
}
#endif
DirMonInvoker::DirMonInvoker() : _reportExisting(false), _recurse(false), _thread(NULL) {
}
DirMonInvoker::~DirMonInvoker() {
_isRunning = false;
if (_thread)
_thread->join();
};
boost::shared_ptr<IOProcessorImpl> DirMonInvoker::create(Interpreter* interpreter) {
boost::shared_ptr<DirMonInvoker> invoker = boost::shared_ptr<DirMonInvoker>(new DirMonInvoker());
invoker->_interpreter = interpreter;
return invoker;
}
Data DirMonInvoker::getDataModelVariables() {
Data data;
return data;
}
void DirMonInvoker::send(const SendRequest& req) {
}
void DirMonInvoker::cancel(const std::string sendId) {
}
void DirMonInvoker::invoke(const InvokeRequest& req) {
if (req.params.find("dir") != req.params.end() && boost::iequals(req.params.find("reportexisting")->second, "true"))
_reportExisting = true;
if (req.params.find("recurse") != req.params.end() && boost::iequals(req.params.find("recurse")->second, "true"))
_recurse = true;
if (req.params.find("suffix") != req.params.end())
_suffix = req.params.find("suffix")->second;
std::multimap<std::string, std::string>::const_iterator dirIter = req.params.find("dir");
while(dirIter != req.params.upper_bound("dir")) {
URL url(dirIter->second);
if (!_interpreter->toAbsoluteURI(url) || !boost::iequals(url.scheme(), "file")) {
LOG(ERROR) << "Given directory '" << dirIter->second << "' cannot be transformed to absolute path";
} else {
_watchIds.insert(std::make_pair(url.path(), _fileWatcher.addWatch(url.path(), this, _recurse)));
}
dirIter++;
}
_isRunning = true;
_thread = new tthread::thread(DirMonInvoker::run, this);
}
void DirMonInvoker::run(void* instance) {
if (((DirMonInvoker*)instance)->_reportExisting)
((DirMonInvoker*)instance)->reportExisting();
while(((DirMonInvoker*)instance)->_isRunning)
((DirMonInvoker*)instance)->_fileWatcher.update();
}
void DirMonInvoker::reportExisting() {
std::multimap<std::string, FW::WatchID>::iterator watchIter = _watchIds.begin();
while(watchIter != _watchIds.end()) {
reportExistingIn(watchIter->first, watchIter->second);
watchIter++;
}
}
void DirMonInvoker::handleFileAction(FW::WatchID watchid, const FW::String& dir, const FW::String& filename, FW::Action action) {
if (!boost::algorithm::ends_with(filename, _suffix))
return;
struct stat fileStat;
if (stat(filename.c_str(), &fileStat) != 0) {
LOG(ERROR) << "Error with stat on directory entry " << filename << ": " << strerror(errno);
return;
}
Event event;
event.invokeid = _invokeId;
switch (action) {
case FW::Actions::Existing:
event.name = "file.existing";
break;
case FW::Actions::Add:
event.name = "file.added";
break;
case FW::Actions::Delete:
event.name = "file.deleted";
break;
case FW::Actions::Modified:
event.name = "file.modified";
break;
default:
break;
}
event.compound["file"].compound["name"] = Data(filename, Data::VERBATIM);
event.compound["file"].compound["dir"] = Data(dir, Data::VERBATIM);
event.compound["file"].compound["mtime"] = toStr(fileStat.st_mtime);
event.compound["file"].compound["ctime"] = toStr(fileStat.st_ctime);
event.compound["file"].compound["atime"] = toStr(fileStat.st_atime);
event.compound["file"].compound["size"] = toStr(fileStat.st_size);
returnEvent(event);
}
bool DirMonInvoker::filter(const std::string filename) {
return true;
}
void DirMonInvoker::reportExistingIn(const std::string dir, FW::WatchID watchid) {
#ifndef WIN32
DIR *dp;
dp = opendir(dir.c_str());
if (dp == NULL) {
LOG(ERROR) << "Error opening directory " << dir << ": " << strerror(errno);
return;
}
// iterate all entries and see what changed
struct dirent* entry;
while((entry = readdir(dp))) {
std::string dname = entry->d_name;
#else
WIN32_FIND_DATA ffd;
HANDLE hFind = INVALID_HANDLE_VALUE;
TCHAR szDir[MAX_PATH];
StringCchCopy(szDir, MAX_PATH, dir.c_str());
StringCchCat(szDir, MAX_PATH, TEXT("\\*"));
hFind = FindFirstFile(szDir, &ffd);
do {
std::string dname = ffd.cFileName;
#endif
if (boost::iequals(dname, ".") || boost::iequals(dname, ".."))
continue;
char* filename;
asprintf(&filename, "%s/%s", dir.c_str(), dname.c_str());
struct stat fileStat;
if (stat(filename, &fileStat) != 0) {
LOG(ERROR) << "Error with stat on directory entry " << filename << ": " << strerror(errno);
free(filename);
continue;
}
if (fileStat.st_mode & S_IFDIR) {
if (_recurse) {
reportExistingIn(filename, watchid);
} else {
free(filename);
continue;
}
}
if (!filter(dname)) {
free(filename);
continue;
}
handleFileAction(watchid, dir, filename, FW::Actions::Existing);
#ifndef WIN32
}
closedir(dp);
#else
}
while (FindNextFile(hFind, &ffd) != 0);
FindClose(hFind);
#endif
}
}
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