winamp/Src/playlist/B4SLoader.cpp
2024-09-24 14:54:57 +02:00

253 lines
5.7 KiB
C++

#include "main.h"
#include "B4SLoader.h"
#include "../nu/AutoChar.h"
#include "..\Components\wac_network\wac_network_http_receiver_api.h"
#include <strsafe.h>
B4SLoader::B4SLoader() : parser(0), parserFactory(0)
{
parserFactory = WASABI_API_SVC->service_getServiceByGuid(obj_xmlGUID);
if (parserFactory)
parser = (obj_xml *)parserFactory->getInterface();
if (parser)
{
parser->xmlreader_registerCallback(L"WasabiXML\fplaylist\fentry\fname", &b4sXml.title);
parser->xmlreader_registerCallback(L"WinampXML\fplaylist\fentry\fname", &b4sXml.title);
parser->xmlreader_registerCallback(L"WasabiXML\fplaylist\fentry\flength", &b4sXml.length);
parser->xmlreader_registerCallback(L"WinampXML\fplaylist\fentry\flength", &b4sXml.length);
//parser->xmlreader_registerCallback(L"WasabiXML\fplaylist", this);
//parser->xmlreader_registerCallback(L"WinampXML\fplaylist", this);
parser->xmlreader_registerCallback(L"WasabiXML\fplaylist\fentry", &b4sXml);
parser->xmlreader_registerCallback(L"WinampXML\fplaylist\fentry", &b4sXml);
parser->xmlreader_open();
//parser->xmlreader_setEncoding(L"UTF-8");
}
}
B4SXML::B4SXML()
{
filename[0]=0;
playlist = 0;
}
B4SLoader::~B4SLoader()
{
if (parser)
{
parser->xmlreader_unregisterCallback(&b4sXml);
parser->xmlreader_unregisterCallback(&b4sXml.length);
parser->xmlreader_unregisterCallback(&b4sXml.title);
parser->xmlreader_close();
}
if (parserFactory && parser)
parserFactory->releaseInterface(parser);
parserFactory = 0;
parser = 0;
}
#define HTTP_BUFFER_SIZE 1024
static int FeedXMLHTTP(api_httpreceiver *http, obj_xml *parser, bool *noData)
{
char downloadedData[HTTP_BUFFER_SIZE] = {0};
int xmlResult = API_XML_SUCCESS;
int downloadSize = http->get_bytes(downloadedData, HTTP_BUFFER_SIZE);
if (downloadSize)
{
xmlResult = parser->xmlreader_feed((void *)downloadedData, downloadSize);
*noData=false;
}
else
*noData = true;
return xmlResult;
}
static void RunXMLDownload(api_httpreceiver *http, obj_xml *parser)
{
int ret;
bool noData;
do
{
Sleep(50);
ret = http->run();
if (FeedXMLHTTP(http, parser, &noData) != API_XML_SUCCESS)
return ;
}
while (ret == HTTPRECEIVER_RUN_OK);
// finish off the data
do
{
if (FeedXMLHTTP(http, parser, &noData) != API_XML_SUCCESS)
return ;
} while (!noData);
parser->xmlreader_feed(0, 0);
}
void B4SXML::StartTag(const wchar_t *xmlpath, const wchar_t *xmltag, ifc_xmlreaderparams *params)
{
if (!_wcsicmp(xmltag, L"entry"))
{
const wchar_t *track = params->getItemValue(L"playstring");
if (!_wcsnicmp(track, L"file://", 7))
track+=7;
else if (!_wcsnicmp(track, L"file:", 5))
track+=5;
StringCchCopyW(filename, FILENAME_SIZE, track);
}
}
void B4SXML::EndTag(const wchar_t *xmlpath, const wchar_t *xmltag)
{
if (!_wcsicmp(xmltag, L"entry") && filename[0])
{
int lengthSeconds=-1;
const wchar_t *trackLength = length.GetString();
if (trackLength && *trackLength)
lengthSeconds = _wtoi(trackLength) / 1000;
const wchar_t *trackTitle = title.GetString();
// TODO: deal with relative pathnames
if (trackTitle && *trackTitle)
playlist->OnFile(filename, trackTitle, lengthSeconds, 0); // TODO: extended info
else
playlist->OnFile(filename, 0, lengthSeconds, 0);// TODO: extended info
filename[0]=0;
length.Reset();
title.Reset();
}
}
#if 0 // TOOD: reimplement
void B4SLoader::LoadURL(const char *url)
{
if (!parser)
return ; // no sense in continuing if there's no parser available
api_httpreceiver *http = 0;
waServiceFactory *sf = WASABI_API_SVC->service_getServiceByGuid(httpreceiverGUID);
if (sf)
http = (api_httpreceiver *)sf->getInterface();
if (!http)
return ;
http->AllowCompression();
http->open(API_DNS_AUTODNS, HTTP_BUFFER_SIZE, GetProxy());
SetUserAgent(http);
http->connect(url);
int ret;
bool first = true;
do
{
Sleep(50);
ret = http->run();
if (ret == -1) // connection failed
break;
// ---- check our reply code ----
int replycode = http->GetReplyCode();
switch (replycode)
{
case 0:
case 100:
break;
case 200:
{
RunXMLDownload(http, parser);
sf->releaseInterface(http);
return ;
}
break;
default:
sf->releaseInterface(http);
return ;
}
}
while (ret == HTTPRECEIVER_RUN_OK);
const char *er = http->geterrorstr();
sf->releaseInterface(http);
return ;
}
void B4SLoader::LoadFile(const char *filename)
{
if (!parser)
return ; // no sense in continuing if there's no parser available
HANDLE file = CreateFile(filename, GENERIC_READ, FILE_SHARE_READ, NULL, OPEN_EXISTING, NULL, NULL);
if (file == INVALID_HANDLE_VALUE)
return ;
char data[1024] = {0};
while (true)
{
DWORD bytesRead = 0;
if (ReadFile(file, data, 1024, &bytesRead, NULL) && bytesRead)
{
parser->xmlreader_feed(data, bytesRead);
}
else
break;
}
CloseHandle(file);
parser->xmlreader_feed(0, 0);
}
#endif
int B4SLoader::Load(const wchar_t *filename, ifc_playlistloadercallback *playlist)
{
if (!parser)
return IFC_PLAYLISTLOADER_FAILED; // no sense in continuing if there's no parser available
b4sXml.playlist=playlist;
HANDLE file = CreateFileW(filename, GENERIC_READ, FILE_SHARE_READ, NULL, OPEN_EXISTING, NULL, NULL);
if (file == INVALID_HANDLE_VALUE)
return IFC_PLAYLISTLOADER_FAILED;
while (true)
{
char data[1024] = {0};
DWORD bytesRead = 0;
if (ReadFile(file, data, 1024, &bytesRead, NULL) && bytesRead)
{
parser->xmlreader_feed(data, bytesRead);
}
else
break;
}
CloseHandle(file);
parser->xmlreader_feed(0, 0);
return IFC_PLAYLISTLOADER_SUCCESS;
}
#ifdef CBCLASS
#undef CBCLASS
#endif
#define CBCLASS B4SXML
START_DISPATCH;
VCB(ONSTARTELEMENT, StartTag)
VCB(ONENDELEMENT, EndTag)
END_DISPATCH;
#ifdef CBCLASS
#undef CBCLASS
#endif
#define CBCLASS B4SLoader
START_DISPATCH;
CB(IFC_PLAYLISTLOADER_LOAD, Load)
END_DISPATCH;