char *mime_extension( char *filename ) {
char *key = filename;
char *dot = filename;
int i = 0;
/* Search file ending */
while( (dot = strchr( key, '.')) != NULL ) {
key = dot+1;
i++;
}
/* No '.' found */
if( i == 0 ) {
return NULL;
}
/* bla.7z.001, bla.7z.002 */
if( str_isNumber( key ) ) {
/* Cut number */
key--;
*key = '\0';
return mime_extension( filename );
}
/* Panic mode */
if( strlen( key) > 5 ) {
return NULL;
}
return key;
}
int http_range_simple(TCP_NODE * n, RESPONSE * r,
char *filename, size_t filesize,
char *p_range, size_t * content_length)
{
char *p_start = NULL;
char *p_stop = NULL;
size_t range_start = 0;
size_t range_stop = 0;
char range[BUF_SIZE];
if (filesize == 0) {
return FALSE;
}
memset(range, '\0', BUF_SIZE);
strncpy(range, p_range, BUF_OFF1);
strncpy(r->data.file.filename, filename, BUF_OFF1);
p_start = range;
if ((p_stop = strchr(p_start, '-')) == NULL) {
return FALSE;
}
*p_stop = '\0';
p_stop++;
if (*p_start == '\0') {
range_start = 0;
} else if (str_isNumber(p_start)) {
range_start = atol(p_start);
} else {
return FALSE;
}
if (*p_stop == '\0') {
range_stop = filesize - 1;
} else if (str_isNumber(p_stop)) {
range_stop = atol(p_stop);
} else {
return FALSE;
}
if (range_start < 0 || range_start >= filesize) {
return FALSE;
}
if (range_stop < range_start) {
return FALSE;
}
/* Be liberal: Patch the range stop if the end is beyond the end of
* the file. Other webservers also behave like this. zsync uses a stop
* marker, that is beyond the file limits for example... */
if (range_stop >= filesize) {
range_stop = filesize - 1;
}
r->data.file.f_offset = range_start;
r->data.file.f_stop = range_stop;
*content_length += r->data.file.f_stop + 1 - r->data.file.f_offset;
/* Success */
return TRUE;
}
