int isourfile(char *fn)
{
/* Finally fixed */
if(StringComp(fn + strlen(fn) - 3, "aac", 3) == 0)
{
return 1;
}
return 0;
}
int id3v2_tag(unsigned char *buffer)
{
if(StringComp((const char *)buffer, "ID3", 3) == 0)
{
unsigned long tagsize;
// high bit is not used
tagsize = (buffer[6] << 21) | (buffer[7] << 14) |
(buffer[8] << 7) | (buffer[9] << 0);
tagsize += 10;
return tagsize;
}
return 0;
}
FILE_STREAM *open_filestream(char *filename)
{
FILE_STREAM *fs;
if(StringComp(filename,"http://", 7) == 0)
{
fs = (FILE_STREAM *)LocalAlloc(LPTR, sizeof(FILE_STREAM) + m_stream_buffer_size * 1024);
if(fs == NULL)
return NULL;
fs->data = (unsigned char *)&fs[1];
if(http_file_open(filename, fs) < 0)
{
LocalFree(fs);
return NULL;
}
fs->http = 1;
}
else
{
fs = (FILE_STREAM*)LocalAlloc(LPTR, sizeof(FILE_STREAM) + m_local_buffer_size * 1024);
if(fs == NULL)
return NULL;
fs->data = (unsigned char *)&fs[1];
fs->stream = CreateFile(filename, GENERIC_READ,
FILE_SHARE_READ | FILE_SHARE_WRITE, 0,
OPEN_EXISTING, FILE_FLAG_SEQUENTIAL_SCAN, 0);
if (fs->stream == INVALID_HANDLE_VALUE)
{
LocalFree(fs);
return NULL;
}
fs->http = 0;
}
fs->buffer_length = 0;
fs->buffer_offset = 0;
fs->file_offset = 0;
return fs;
}
int http_file_open(char *url, FILE_STREAM *fs)
{
SOCKET sck;
SOCKADDR_IN host;
char server[1024], file[1024], request[1024], *temp = NULL, *tmpfile = NULL;
int i, j, port = 80, bytes_recv, http_code;
/* No winsock, no streaming */
if(!winsock_init)
{
return -1;
}
url += 7; // Skip over http://
/* Extract data from the URL */
for(i=0; url[i] != '/' && url[i] != ':' && url[i] != 0; i++);
ZeroMemory(server, 1024);
CopyMemory(server, url, i);
if(url[i] == ':')
{
/* A certain port was specified */
port = atol(url + (i + 1));
}
for(; url[i] != '/' && url[i] != 0; i++);
ZeroMemory(file, 1024);
CopyMemory(file, url + i, lstrlen(url));
/* END OF URL PARSING */
/* Create a TCP/IP socket */
sck = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP);
if(sck == INVALID_SOCKET)
{
CommonExit("Error creating TCP/IP new socket");
return -1;
}
/* Resolve the host address (turn www.blah.com into an IP) */
if(resolve_host(server, &host, (unsigned short)port))
{
CommonExit("Error resolving host address");
CloseTCP(sck);
return -1;
}
/* Connect to the server */
if(connect(sck, (SOCKADDR *)&host, sizeof(SOCKADDR)) == SOCKET_ERROR)
{
CommonExit("Error connecting to remote server");
CloseTCP(sck);
return -1;
}
tmpfile = calloc(1, (strlen(file) * 3) + 1);
/* Encode URL */
for(i=0, j=0; i < (int)strlen(file); i++)
{
if((unsigned char)file[i] <= 31 || (unsigned char)file[i] >= 127)
{
/* encode ASCII-control characters */
wsprintf(tmpfile + j, "%%%X", (unsigned char)file[i]);
j += 3;
continue;
}
else
{
switch(file[i])
{
/* encode characters that could confuse some servers */
case ' ':
case '"':
case '>':
case '<':
case '#':
case '%':
case '{':
case '}':
case '|':
case '\\':
case '^':
case '~':
case '[':
case ']':
case '`':
wsprintf(tmpfile + j, "%%%X", (unsigned char)file[i]);
j += 3;
continue;
}
}
tmpfile[j] = file[i];
j++;
}
wsprintf(request, "GET %s\r\n\r\n", tmpfile);
free(tmpfile);
/* Send the request */
if(send(sck, request, lstrlen(request), 0) <= 0)
{
/* Error sending data */
CloseTCP(sck);
return -1;
}
ZeroMemory(request, 1024);
/* Send the request */
if((bytes_recv = recv(sck, request, 1024, 0)) <= 0)
{
/* Error sending data */
CloseTCP(sck);
return -1;
}
if(StringComp(request,"HTTP/1.", 7) != 0)
{
/* Invalid header */
CloseTCP(sck);
return -1;
}
http_code = atol(request + 9);
if(http_code < 200 || http_code > 299)
{
/* HTTP error */
CloseTCP(sck);
return -1;
}
// Search for a length field
fs->http_file_length = 0;
/* Limit search to only 20 loops */
if((temp = strstr(request, "Content-Length: ")) != NULL)
{
/* Has a content-length field, copy into structure */
fs->http_file_length = atol(temp + 16);
}
/* Copy the handle data into the structure */
fs->inetStream = sck;
/* Copy any excess data beyond the header into the filestream buffers */
temp = strstr(request, "\r\n\r\n");
if(temp)
{
temp += 4;
}
if(temp - request < bytes_recv)
{
memcpy(fs->data, temp, (temp - request) - bytes_recv);
fs->buffer_length = (temp - request) - bytes_recv;
fs->buffer_offset = 0;
}
return 0;
}
