/*
* SV_Download_f
* Download command issued from server
*/
static void SV_Download_f( void )
{
qboolean success;
char *s;
char url[MAX_STRING_CHARS], filepath[MAX_QPATH], writepath[MAX_QPATH];
if( Cmd_Argc() != 2 )
{
Com_Printf( "Usage: %s <url>\n", Cmd_Argv( 0 ) );
Com_Printf( "Downloads .pk3 or .pak from URL to gamedir and adds it to the server\n" );
Com_Printf( "Note, server will not function properly while downloading\n" );
return;
}
s = Cmd_Argv( 1 );
if( !Com_GlobMatch( "*://*", s, qfalse ) )
Q_strncpyz( url, "http://", sizeof( url ) );
else
url[0] = 0;
Q_strncatz( url, s, sizeof( url ) );
s = strrchr( url, '/' );
if( !s )
{
Com_Printf( "%s: invalid URL\n", Cmd_Argv( 0 ) );
return;
}
Q_strncpyz( filepath, va( "%s/%s", FS_GameDirectory(), s + 1 ), sizeof( filepath ) );
Q_strncpyz( writepath, va( "%s.tmp", filepath ), sizeof( writepath ) );
if( !FS_CheckPakExtension( writepath ) )
{
Com_Printf( "Missing or invalid archive extension. Only download of pack files is supported\n" );
return;
}
Com_Printf( "download url: %s\n", url );
webDownloadPercentPrint = 0;
success = Web_Get( url, NULL, writepath, qtrue, 60 * 30, 60, SV_WebDownloadProgress, qfalse );
if( !success )
{
Com_Printf( "Server web download failed\n" );
return;
}
if( !FS_MoveBaseFile( writepath, filepath ) )
{
Com_Printf( "Couldn't rename the downloaded file. Download failed\n" );
return;
}
Com_Printf( "Download successful\n" );
// update the map list, which also does a filesystem rescan
ML_Update();
}
/*
* CL_DownloadComplete
*
* Checks downloaded file's checksum, renames it and adds to the filesystem.
*/
static void CL_DownloadComplete( void )
{
unsigned checksum = 0;
int length;
qboolean updateMapList = qfalse;
FS_FCloseFile( cls.download.filenum );
cls.download.filenum = 0;
// verify checksum
if( FS_CheckPakExtension( cls.download.name ) )
{
if( !FS_IsPakValid( cls.download.tempname, &checksum ) )
{
Com_Printf( "Downloaded file is not a valid pack file. Removing\n" );
FS_RemoveBaseFile( cls.download.tempname );
return;
}
}
else
{
length = FS_LoadBaseFile( cls.download.tempname, NULL, NULL, 0 );
if( length < 0 )
{
Com_Printf( "Error: Couldn't load downloaded file\n" );
return;
}
checksum = FS_ChecksumBaseFile( cls.download.tempname );
}
if( cls.download.checksum != checksum )
{
Com_Printf( "Downloaded file has wrong checksum. Removing: %u %u %s\n", cls.download.checksum, checksum, cls.download.tempname );
FS_RemoveBaseFile( cls.download.tempname );
return;
}
if( !FS_MoveBaseFile( cls.download.tempname, cls.download.name ) )
{
Com_Printf( "Failed to rename the downloaded file\n" );
return;
}
if( FS_CheckPakExtension( cls.download.name ) )
updateMapList = qtrue;
else if( !Q_stricmp( COM_FileExtension( cls.download.name ), ".bsp" ) )
updateMapList = qtrue;
// Maplist hook so we also know when a new map is added
if( updateMapList )
ML_Update ();
cls.download.successCount++;
cls.download.timeout = 0;
}
/*
* SV_WebDownload
*/
static qboolean SV_WebDownload( const char *baseUrl, const char *filepath, qboolean overwrite, qboolean silent )
{
qboolean success;
int alloc_size;
char *temppath, *writepath, *url;
if( developer->integer )
silent = qfalse;
if( !baseUrl || !baseUrl[0] || !filepath )
return qfalse;
if( !strrchr( baseUrl, '/' ) )
{
if( !silent )
Com_Printf( "SV_WebDownload: Invalid URL\n" );
return qfalse;
}
if( filepath[0] == '/' ) // filepath should never begin with a slash
filepath++;
if( !COM_ValidateRelativeFilename( filepath ) )
{
if( !silent )
Com_Printf( "SV_WebDownload: Invalid filename\n" );
return qfalse;
}
if( !COM_FileExtension( filepath ) )
{
if( !silent )
Com_Printf( "SV_WebDownload: no file extension\n" );
return qfalse;
}
// full url (baseurl + path)
alloc_size = strlen( baseUrl ) + 1 + strlen( filepath ) + 1;
url = Mem_TempMalloc( alloc_size );
if( baseUrl[ strlen( baseUrl ) - 1 ] == '/' ) // url includes last slash
Q_snprintfz( url, alloc_size, "%s%s", baseUrl, filepath );
else
Q_snprintfz( url, alloc_size, "%s/%s", baseUrl, filepath );
// add .tmp (relative + .tmp)
alloc_size = strlen( filepath ) + strlen( ".tmp" ) + 1;
temppath = Mem_TempMalloc( alloc_size );
Q_snprintfz( temppath, alloc_size, "%s.tmp", filepath );
// full write path for curl
alloc_size = strlen( FS_WriteDirectory() ) + 1 + strlen( temppath ) + 1;
writepath = Mem_TempMalloc( alloc_size );
Q_snprintfz( writepath, alloc_size, "%s/%s", FS_WriteDirectory(), temppath );
webDownloadPercentPrint = 0;
webDownloadPercentStarted = qfalse;
success = Web_Get( url, NULL, writepath, qtrue, 60 * 30, 60, SV_WebDownloadProgress, qfalse );
if( webDownloadPercentStarted )
Com_Printf( "\n" );
if( !success )
{
if( !silent )
Com_Printf( "Failed to download remote file.\n" );
goto failed;
}
// rename the downloaded file
if( !FS_MoveBaseFile( temppath, filepath ) )
{
if( !overwrite )
{
if( !silent )
Com_Printf( "Failed to rename temporary file.\n" );
goto failed;
}
// check if it failed because there already exists a file with the same name
// and in this case remove this file
if( FS_FOpenBaseFile( filepath, NULL, FS_READ ) != -1 )
{
char *backfile;
alloc_size = strlen( filepath ) + strlen( ".bak" ) + 1;
backfile = Mem_TempMalloc( alloc_size );
Q_snprintfz( backfile, alloc_size, "%s.bak", filepath );
// if there is already a .bak file, destroy it
if( FS_FOpenBaseFile( backfile, NULL, FS_READ ) != -1 )
FS_RemoveBaseFile( backfile );
// move the current file into .bak file
if( !FS_MoveBaseFile( filepath, backfile ) )
{
Mem_TempFree( backfile );
if( !silent )
Com_Printf( "Failed to backup destination file.\n" );
goto failed;
}
// now try renaming the downloaded file again
if( !FS_MoveBaseFile( temppath, filepath ) )
{
// didn't work, so restore the backup file
if( FS_MoveBaseFile( backfile, filepath ) )
{
if( !silent )
Com_Printf( "Failed to rename temporary file, restoring from backup.\n" );
}
else
{
if( !silent )
Com_Printf( "Failed to rename temporary file and restore from backup.\n" );
}
Mem_TempFree( backfile );
goto failed;
}
Mem_TempFree( backfile );
}
}
Mem_TempFree( temppath );
Mem_TempFree( writepath );
Mem_TempFree( url );
return qtrue;
failed:
if( !silent )
Com_Printf( "Removing temporary file: %s\n", writepath );
FS_RemoveAbsoluteFile( writepath );
Mem_TempFree( temppath );
Mem_TempFree( writepath );
Mem_TempFree( url );
return qfalse;
}