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#include "music.h"
#include "decoder.h"
#include "encoder.h"
#include "tag.h"
#include "database.h"
#include "cache.h"
#include <boost/format.hpp>
#include <boost/algorithm/string/predicate.hpp>
#include <boost/algorithm/string/classification.hpp>
#include <boost/algorithm/string/split.hpp>
#include <boost/algorithm/string/join.hpp>
#include <boost/cast.hpp>
#include <boost/filesystem/fstream.hpp>
#include <boost/foreach.hpp>
#include <soci/soci.h>
fs::path music::root_directory;
void music::init(std::string root) {
// remove trailing slash
if(boost::algorithm::ends_with(root, "/"))
root = root.substr(0, root.size()-1);
root_directory = root;
}
/** Fetches a MusicListing object from the given \p path.
* Prefixes the given path with the music root directory.
* This can be either a track (file) or a directory.
*/
MusicListing::p music::get(const HTTP::Connection::PathList& path) {
// prefix path with our root_directory
fs::path p = root_directory;
for(HTTP::Connection::PathList::const_iterator it = path.begin(); it != path.end(); it++) {
// don't allow requests with /../ in the path
if(*it == "..") {
return MusicListing::p();
}
p /= *it;
}
if(fs::is_directory(p)) {
boost::shared_ptr<MusicListing> ml(new MusicDirectory(p));
return ml;
} else if(fs::is_regular_file(p)) {
boost::shared_ptr<MusicListing> ml(new MusicTrack(p));
return ml;
}
return MusicListing::p();
}
/** Fetches a MusicListing object from the given \p path.
* Splits the given string and calls the above function.
*/
MusicListing::p music::get(const std::string& path) {
HTTP::Connection::PathList path_vector;
boost::algorithm::split(path_vector, path, boost::algorithm::is_any_of("/\\"));
return get(path_vector);
}
/** Fetches a directory.
* This is a helper function which returns a null pointer if the fetched MusicListing isn't a directory.
*/
MusicDirectory::p music::get_directory(const std::string& path) {
MusicListing::p ml = get(path);
if(!ml || !fs::is_directory(ml->path)) {
return MusicDirectory::p();
}
MusicDirectory::p dir(boost::dynamic_pointer_cast<MusicDirectory>(ml));
return dir;
}
/** Find tracks in the database.
* Does a search on specific fields given by \p search.
*/
std::vector<MusicListing::p> music::find(std::map<std::string, std::string> search) {
Database db;
return db.find(search);
}
/** Find tracks in the database.
* Returns tracks where title, artist, album or filename matches \p search.
*/
std::vector<MusicListing::p> music::find(std::string search) {
Database db;
return db.find(search);
}
/** Initiate an update on \p path and its subdirs.
* music::update does the actual work.
*/
void music::begin_update(const std::string path) {
MusicDirectory::p dir = get_directory(path);
std::cout << boost::format("updater(%s) called") % path << std::endl;
if(dir) {
Database db;
dir->update(db);
}
}
/** Recursively update \p dir and its subdirectories.
*/
void MusicDirectory::update(Database& db) {
BOOST_FOREACH(fs::path track, tracks) {
std::cout << "track " << track << std::endl;
Tag::p tag = Tag::load(track.string());
BOOST_FOREACH(Tag::Fields::value_type& f, tag->fields) {
std::cout << boost::format(" %s: %s") % f.first % f.second << std::endl;
}
db.update(track, tag);
}
for(PathListings::iterator it = directories.begin(); it != directories.end(); it++) {
MusicDirectory dir(*it);
dir.update(db);
}
}
void MusicDirectory::render(HTTP::Connection::p req) {
req->add_header("content-type", "text/html");
std::string base_path = boost::algorithm::join(req->base_path, "/");
// strip root_directory from the absolute file path
std::string rel_base(path.string().substr(music::root_directory.string().size()));
// set relative base to "/" if we're at the root_directory
if(!rel_base.size())
rel_base = "/";
req->send_data(boost::str(boost::format("<h1>%s</h1>") % rel_base));
// link to parent directory if we're not at the root_directory
if(rel_base != "/") {
std::string rel_parent(rel_base.substr(0, rel_base.find_last_of('/')));
req->send_data(boost::str(boost::format("<a href=\"/%s%s/\">..</a><br />") % base_path % rel_parent));
}
for(PathListings::iterator it = directories.begin(); it != directories.end(); it++) {
std::string rel_path = it->string().substr(music::root_directory.string().size());
req->send_data(boost::str(boost::format("<a href=\"/%s%s/\">%s</a><br />") % base_path % rel_path % it->filename()));
}
for(PathListings::iterator it = tracks.begin(); it != tracks.end(); it++) {
std::string rel_path = it->string().substr(music::root_directory.string().size());
req->send_data(boost::str(boost::format("<a href=\"/%s%s\">%s</a><br />") % base_path % rel_path % it->filename()));
}
}
MusicTrack::MusicTrack(const fs::path path) {
std::cout << path << std::endl;
this->path = path;
}
MusicDirectory::MusicDirectory(const fs::path root) {
this->path = root;
std::cout << this->path << std::endl;
fs::directory_iterator end_itr;
for(fs::directory_iterator it(this->path); it != end_itr; it++) {
if(fs::is_directory(it->status())) {
directories.push_back(it->path());
} else if(fs::is_regular_file(it->status())) {
tracks.push_back(it->path());
}
}
}
void MusicTrack::render(HTTP::Connection::p req) {
req->add_header("Content-Type", "audio/mpeg");
fs::path file_path = path;
int skip = 0;
int range = 0;
if(req->headers.count("Range")) {
if(req->headers["Range"] == "bytes=0-1024") {
range = 1025;
} else {
skip = 1025;
}
}
if(req->args.count("decoder") && req->args.count("encoder")) {
Decoder::p decoder = Decoder::get(req->args["decoder"], path.string());
Encoder::p encoder = Encoder::get(req->args["encoder"], decoder);
EncodedCache ec(path, decoder, encoder);
file_path = ec.get_path();
if(!fs::exists(file_path))
ec.create_cache();
// TODO: Make an encoder-to-istream adapter to get rid of this:
char data[0x10000];
std::streamsize size = 1;
if(skip) {
size = encoder->read(data, skip);
}
if(range) {
size = encoder->read(data, range);
if(size > 0) {
req->send_data(data, size);
}
return;
}
while(size) {
size = encoder->read(data, 0x10000);
if(size > 0)
req->send_data(data, size);
}
}
req->send_file(path);
/*
fs::ifstream is(file_path, std::ios::in | std::ios::binary);
is.seekg(0, std::ios::end);
req->add_header("content-length", boost::str(boost::format("%d") % is.tellg()));
is.seekg(0, std::ios::beg);
req->send_data(is);
*/
}
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