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/*
* responsefile.c: VDR on Smart TV plugin
*
* Copyright (C) 2012, 2013 T. Lohmar
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
* Or, point your browser to http://www.gnu.org/licenses/old-licenses/gpl-2.0.html
*
*/
#include "responsefile.h"
#include "httpresource.h"
#include <vector>
#include <sys/stat.h>
#include <errno.h>
#include <cstring>
//#define MAXLEN 4096
#define DEBUGPREFIX mLog->getTimeString() << ": mReqId= " << mRequest->mReqId << " fd= " << mRequest->mFd
#define OKAY 0
#define ERROR (-1)
#define DEBUG
cResponseFile::cResponseFile(cHttpResource* req) : cResponseBase(req), mFile(NULL), mFileSize(0) {
}
cResponseFile::~cResponseFile() {
if (mFile != NULL) {
fclose(mFile);
mFile = NULL;
}
}
int cResponseFile::sendFile() {
// Send the First Datachunk, incl all headers
if (isHeadRequest())
return OKAY;
struct stat64 statbuf;
if (stat64((mRequest->mPath).c_str(), &statbuf) < 0) {
sendError(404, "Not Found", NULL, "003 File not found.");
return OKAY;
}
*(mLog->log())<< DEBUGPREFIX
<< " SendFile mPath= " << mRequest->mPath
<< endl;
char f[400];
if (openFile((mRequest->mPath).c_str()) == ERROR) {
sendError(403, "Forbidden", NULL, "001 Access denied.");
return OKAY;
}
if (!mFile) {
sendError(403, "Forbidden", NULL, "001 Access denied.");
return OKAY;
}
mFileSize = S_ISREG(statbuf.st_mode) ? statbuf.st_size : -1;
*(mLog->log())<< "fd= " << mRequest->mFd << " mReqId= "<< mRequest->mReqId
<< " mFileSize= " <<mFileSize << endl;
if (!(mRequest->rangeHdr).isRangeRequest) {
mRemLength = mFileSize;
sendHeaders(200, "OK", NULL, getMimeType((mRequest->mPath).c_str()), mFileSize, statbuf.st_mtime);
}
else { // Range request
fseeko64(mFile, (mRequest->rangeHdr).begin, SEEK_SET);
if ((mRequest->rangeHdr).end == 0)
(mRequest->rangeHdr).end = mFileSize;
mRemLength = ((mRequest->rangeHdr).end-(mRequest->rangeHdr).begin);
*(mLog->log())<< "fd= " << mRequest->mFd << " mReqId= "<< mRequest->mReqId
<< " rangeHdr.begin= " <<(mRequest->rangeHdr).begin << " rangeHdr.end= " << (mRequest->rangeHdr).end
<< " Content-Length= " << mRemLength << endl;
snprintf(f, sizeof(f), "Content-Range: bytes %lld-%lld/%lld", (mRequest->rangeHdr).begin, ((mRequest->rangeHdr).end -1), mFileSize);
sendHeaders(206, "Partial Content", f, getMimeType((mRequest->mPath).c_str()), ((mRequest->rangeHdr).end-(mRequest->rangeHdr).begin), statbuf.st_mtime);
}
#ifndef DEBUG
*(mLog->log())<< "fd= " << mRequest->mFd << " mReqId= "<< mRequest->mReqId
<< ": Done mRemLength= "<< mRemLength
<< endl;
#endif
mRequest->mConnState = SERVING;
return OKAY;
}
int cResponseFile::openFile(const char *name) {
mFile = fopen(name, "r");
if (!mFile) {
*(mLog->log())<< DEBUGPREFIX
<< " fopen failed pathbuf= " << name
<< " errno= " << errno
<< " " << strerror(errno) << endl;
return ERROR;
}
return OKAY;
}
int cResponseFile::fillDataBlk() {
// char pathbuf[4096];
mBlkPos = 0;
int to_read = 0;
if (mError)
return ERROR;
to_read = ((mRemLength > MAXLEN) ? MAXLEN : mRemLength);
mBlkLen = fread(mBlkData, 1, to_read, mFile);
mRemLength -= mBlkLen;
if (mBlkLen == 0) {
// read until EOF
fclose(mFile);
mFile = NULL;
return ERROR;
}
return OKAY;
}
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