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/* --------------------------------------------------------------------------
MusicBrainz -- The Internet music metadatabase
Copyright (C) 2000 Robert Kaye
Copyright (C) 1999 Marc E E van Woerkom
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This library 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
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
$Id: diskid.cpp,v 1.8 2003/01/22 01:47:05 robert Exp $
----------------------------------------------------------------------------*/
#include <assert.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <string>
#include "types.h"
#include "errors.h"
#include "diskid.h"
extern "C"
{
#include "sha1.h"
#include "base64.h"
}
DiskId::DiskId(void)
{
}
DiskId::~DiskId(void)
{
}
void DiskId::ReportError(char *err)
{
m_errorMsg = string(err);
}
void DiskId::GetLastError(string &err)
{
err = m_errorMsg;
}
void DiskId::TestGenerateId()
{
SHA_INFO sha;
unsigned char digest[20], *base64;
unsigned long size;
sha_init(&sha);
sha_update(&sha, (unsigned char *)"0123456789", 10);
sha_final(digest, &sha);
base64 = rfc822_binary(digest, 20, &size);
if (strncmp((char*) base64, "h6zsF82dzSCnFsws9nQXtxyKcBY-", size))
{
free(base64);
printf("The SHA-1 hash function failed to properly generate the\n");
printf("test key.\n");
exit(0);
}
free(base64);
}
void DiskId::GenerateId(PMUSICBRAINZ_CDINFO pCDInfo,
char DiscId[33])
{
SHA_INFO sha;
unsigned char digest[20], *base64;
unsigned long size;
char temp[9];
int i;
sha_init(&sha);
// Before we ran the hash on the binary data, but now to make
// sure people on both types of endian systems create the same
// keys, we convert the data to hex-ASCII first. :-)
sprintf(temp, "%02X", pCDInfo->FirstTrack);
sha_update(&sha, (unsigned char *)temp, strlen(temp));
sprintf(temp, "%02X", pCDInfo->LastTrack);
sha_update(&sha, (unsigned char *)temp, strlen(temp));
for(i = 0; i < 100; i++)
{
sprintf(temp, "%08lX", pCDInfo->FrameOffset[i]);
sha_update(&sha, (unsigned char *)temp, strlen(temp));
}
sha_final(digest, &sha);
base64 = rfc822_binary(digest, 20, &size);
memcpy(DiscId, base64, size);
DiscId[size] = 0;
free(base64);
}
const string &DiskId::MakeString(int i)
{
char text[100];
sprintf(text, "%d", i);
return *new string(text);
}
Error DiskId::FillCDInfo(const string &device, MUSICBRAINZ_CDINFO &cdinfo)
{
int i;
bool bRet;
// check SHA-1 sanity
TestGenerateId();
// clear cdinfo structure
cdinfo.FirstTrack = 0;
cdinfo.LastTrack = 0;
for (i=0; i<100; i++)
cdinfo.FrameOffset[i] = 0;
if (device.length() == 0)
bRet = ReadTOC(NULL, cdinfo);
else
bRet = ReadTOC((char *)device.c_str(), cdinfo);
if (!bRet)
{
return kError_ReadTOCError;
}
return kError_NoErr;
}
Error DiskId::GenerateDiskIdRDF(const string &device, string &xml)
{
MUSICBRAINZ_CDINFO cdinfo;
int i;
char id[33];
Error eRet;
eRet = FillCDInfo(device, cdinfo);
if (IsError(eRet))
return eRet;
GenerateId(&cdinfo, id);
xml = string(" <mq:Result>\n");
xml += string(" <mq:status>OK</mq:status>\n");
xml += string(" <mm:cdindexid>") + string(id) +
string("</mm:cdindexid>\n");
xml += string(" <mm:firstTrack>") +
MakeString(cdinfo.FirstTrack) +
string("</mm:firstTrack>\n");
xml += string(" <mm:lastTrack>") +
MakeString(cdinfo.LastTrack) +
string("</mm:lastTrack>\n");
xml += string(" <mm:toc>\n <rdf:Seq>\n");
xml += string(" <rdf:li>\n");
xml += string(" <mm:TocInfo>\n");
xml += string(" <mm:sectorOffset>");
xml += MakeString(cdinfo.FrameOffset[0]) +
string("</mm:sectorOffset>\n");
xml += string(" <mm:numSectors>0</mm:numSectors>\n");
xml += string(" </mm:TocInfo>\n");
xml += string(" </rdf:li>\n");
for (i = cdinfo.FirstTrack; i <= cdinfo.LastTrack; i++)
{
xml += string(" <rdf:li>\n");
xml += string(" <mm:TocInfo>\n");
xml += string(" <mm:sectorOffset>") +
MakeString(cdinfo.FrameOffset[i]) +
string("</mm:sectorOffset>\n");
xml += string(" <mm:numSectors>");
if (i < cdinfo.LastTrack)
{
xml += MakeString(cdinfo.FrameOffset[i + 1] - cdinfo.FrameOffset[i]);
}
else
{
xml += MakeString(cdinfo.FrameOffset[0] - cdinfo.FrameOffset[i]);
}
xml += string("</mm:numSectors>\n");
xml += string(" </mm:TocInfo>\n");
xml += string(" </rdf:li>\n");
}
xml += string(" </rdf:Seq>\n");
xml += string(" </mm:toc>\n");
xml += string(" </mq:Result>\n");
return kError_NoErr;
}
Error DiskId::GenerateDiskIdQueryRDF(const string &device, string &xml,
bool associateCD)
{
MUSICBRAINZ_CDINFO cdinfo;
int i;
char id[33];
Error eRet;
eRet = FillCDInfo(device, cdinfo);
if (IsError(eRet))
return eRet;
GenerateId(&cdinfo, id);
if (associateCD)
xml = string(" <mq:AssociateCD>\n");
else
xml = string(" <mq:GetCDInfo>\n");
xml += string(" <mq:depth>@DEPTH@</mq:depth>\n");
xml += string(" <mm:cdindexid>") + string(id) +
string("</mm:cdindexid>\n");
if (associateCD)
xml += string(" <mq:associate>@1@</mq:associate>\n");
xml += string(" <mm:firstTrack>") +
MakeString(cdinfo.FirstTrack) +
string("</mm:firstTrack>\n");
xml += string(" <mm:lastTrack>") +
MakeString(cdinfo.LastTrack) +
string("</mm:lastTrack>\n");
xml += string(" <mm:toc>\n <rdf:Seq>\n");
xml += string(" <rdf:li>\n");
xml += string(" <mm:TocInfo>\n");
xml += string(" <mm:sectorOffset>");
xml += MakeString(cdinfo.FrameOffset[0]) +
string("</mm:sectorOffset>\n");
xml += string(" <mm:numSectors>0</mm:numSectors>\n");
xml += string(" </mm:TocInfo>\n");
xml += string(" </rdf:li>\n");
for (i = cdinfo.FirstTrack; i <= cdinfo.LastTrack; i++)
{
xml += string(" <rdf:li>\n");
xml += string(" <mm:TocInfo>\n");
xml += string(" <mm:sectorOffset>") +
MakeString(cdinfo.FrameOffset[i]) +
string("</mm:sectorOffset>\n");
xml += string(" <mm:numSectors>");
if (i < cdinfo.LastTrack)
{
xml += MakeString(cdinfo.FrameOffset[i + 1] - cdinfo.FrameOffset[i]);
}
else
{
xml += MakeString(cdinfo.FrameOffset[0] - cdinfo.FrameOffset[i]);
}
xml += string("</mm:numSectors>\n");
xml += string(" </mm:TocInfo>\n");
xml += string(" </rdf:li>\n");
}
xml += string(" </rdf:Seq>\n");
xml += string(" </mm:toc>\n");
if (associateCD)
xml += string(" </mq:AssociateCD>\n\n");
else
xml += string(" </mq:GetCDInfo>\n\n");
return kError_NoErr;
}
Error DiskId::GetWebSubmitURLArgs(const string &device, string &args)
{
MUSICBRAINZ_CDINFO cdinfo;
int i;
char id[33], toc_string[1024], tracks[10];
Error eRet;
eRet = FillCDInfo(device, cdinfo);
if (IsError(eRet))
return eRet;
GenerateId(&cdinfo, id);
// TO DO: resolve BeOS long issue
sprintf(toc_string,
"%d+%d+%d",
(int)cdinfo.FirstTrack,
(int)cdinfo.LastTrack,
(int)cdinfo.FrameOffset[0]);
for (i = cdinfo.FirstTrack; i <= cdinfo.LastTrack; i++)
{
sprintf(toc_string + strlen(toc_string),
"+%d",
(int)cdinfo.FrameOffset[i]);
}
sprintf(tracks, "%d", cdinfo.LastTrack);
args = string("?id=") + string(id) + string("&tracks=") + string(tracks);
args += string("&toc=") + string(toc_string);
return kError_NoErr;
}
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