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/*
* fileProvider.cpp
*
* Created on: 15.11.2012
* Author: savop
*/
#include <plugin.h>
#include <fstream>
using namespace std;
namespace upnp {
class FileProvider : public cUPnPResourceProvider {
private:
StringMap directoryMap;
FILE* fileFD;
bool Load(const string& filename)
{
bool result = false;
if (access(filename.c_str(), F_OK) == 0) {
isyslog("loading %s", filename.c_str());
ifstream file;
file.open(filename.c_str(), ifstream::in);
string line; int pos;
while(getline(file, line)){
if(line.length() > 0 && line[0] != '#'){
if((pos = line.find_first_of(':')) != string::npos){
directoryMap[line.substr(0,pos)] = line.substr(pos+1);
}
}
}
}
return result;
}
string GetFile(const string& uri){
string mountPoint = uri.substr(6, uri.find_first_of('/',6) - 7);
string file;
if(!mountPoint.empty() && !directoryMap[mountPoint].empty()){
file = directoryMap[mountPoint] + uri.substr(uri.find_first_of('/',6));
}
return file;
}
bool GetFileStat(const string& uri, struct stat& fileStat){
struct stat s;
if(stat(GetFile(uri).c_str(), &s) == 0){
fileStat = s;
return true;
}
return false;
}
public:
virtual string ProvidesSchema() { return "file"; }
virtual string GetRootContainer() {
return ProvidesSchema() + "://";
}
virtual bool IsContainer(const string& uri) {
struct stat fileStat;
if(GetFileStat(uri, fileStat) && S_ISDIR(fileStat.st_mode)) return true;
return false;
}
virtual bool IsLink(const string& uri, string& target) {
struct stat fileStat;
if(GetFileStat(uri, fileStat) && S_ISLNK(fileStat.st_mode)) return true;
return false;
}
virtual long GetContainerUpdateId(const string& uri) {
struct stat fileStat;
if(GetFileStat(uri, fileStat)){
return std::max<time_t>(fileStat.st_ctim.tv_sec, fileStat.st_mtim.tv_sec);
}
return 0;
}
virtual StringList GetContainerEntries(const string& uri) {
StringList list;
DIR* dirHandle;
struct dirent* dirEntry;
if((dirHandle = opendir(GetFile(uri).c_str())) == NULL){
return list;
}
string filename;
while ((dirEntry = readdir(dirHandle)) != NULL) {
filename = dirEntry->d_name;
if(filename.compare(".") || filename.compare("..")){
list.push_back(filename);
}
}
closedir(dirHandle);
return list;
}
virtual bool Seekable() const {
return true;
}
virtual bool Open(const string& uri) {
if(fileFD)
Close();
string file = GetFile(uri);
fileFD = fopen(file.c_str(), "r");
return (fileFD) ? true : false;
}
virtual size_t Read(char* buf, size_t bufLen) {
if(!fileFD) return 0;
return fread(buf, 1, bufLen, fileFD);
}
virtual bool Seek(size_t offset, int origin) {
if(!fileFD) return 0;
return fseek(fileFD, offset, origin) == 0;
}
virtual void Close() {
if(fileFD){
fclose(fileFD);
fileFD = NULL;
}
}
};
UPNP_REGISTER_RESOURCE_PROVIDER(FileProvider);
}
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