static int Seek(access_t *access, uint64_t pos)
{
access_sys_t *sys = access->p_sys;
access->info.b_eof = false;
if (vlc_http_file_seek(sys->file, pos))
return VLC_EGENERIC;
return VLC_SUCCESS;
}
block_t *vlc_http_file_read(struct vlc_http_file *file)
{
if (vlc_http_file_get_status(file) < 0)
return NULL;
block_t *block = vlc_http_res_read(file->resp);
if (block == NULL)
{ /* Automatically reconnect if server supports seek */
if (vlc_http_file_can_seek(file)
&& vlc_http_file_seek(file, file->offset) == 0)
block = vlc_http_res_read(file->resp);
if (block == NULL)
return NULL;
}
file->offset += block->i_buffer;
return block;
}
int main(void)
{
struct vlc_http_file *f;
char *str;
/* Request failure test */
f = vlc_http_file_create(NULL, url, ua, NULL);
assert(f != NULL);
vlc_http_file_seek(f, 0);
assert(vlc_http_file_get_status(f) < 0);
assert(vlc_http_file_get_redirect(f) == NULL);
assert(vlc_http_file_get_size(f) == (uintmax_t)-1);
assert(!vlc_http_file_can_seek(f));
assert(vlc_http_file_get_type(f) == NULL);
assert(vlc_http_file_read(f) == NULL);
vlc_http_file_destroy(f);
/* Non-seekable stream test */
replies[0] = "HTTP/1.1 200 OK\r\n"
"ETag: \"foobar42\"\r\n"
"Content-Type: video/mpeg\r\n"
"\r\n";
offset = 0;
f = vlc_http_file_create(NULL, url, ua, NULL);
assert(f != NULL);
assert(vlc_http_file_get_status(f) == 200);
assert(!vlc_http_file_can_seek(f));
assert(vlc_http_file_get_size(f) == (uintmax_t)-1);
str = vlc_http_file_get_type(f);
assert(str != NULL && !strcmp(str, "video/mpeg"));
free(str);
/* Seek failure */
replies[0] = "HTTP/1.1 200 OK\r\nETag: \"foobar42\"\r\n\r\n";
assert(vlc_http_file_seek(f, offset = 1234) < 0);
vlc_http_file_destroy(f);
/* Seekable file test */
replies[0] = "HTTP/1.1 206 Partial Content\r\n"
"Content-Range: bytes 0-2344/2345\r\n"
"ETag: W/\"foobar42\"\r\n"
"\r\n";
offset = 0;
f = vlc_http_file_create(NULL, url, ua, NULL);
assert(f != NULL);
assert(vlc_http_file_can_seek(f));
assert(vlc_http_file_get_size(f) == 2345);
/* Seek success */
replies[0] = "HTTP/1.1 206 Partial Content\r\n"
"Content-Range: bytes 1234-3455/3456\r\n"
"ETag: W/\"foobar42\"\r\n"
"\r\n";
assert(vlc_http_file_seek(f, offset = 1234) == 0);
assert(vlc_http_file_can_seek(f));
assert(vlc_http_file_get_size(f) == 3456);
/* Seek too far */
replies[0] = "HTTP/1.1 416 Range Not Satisfiable\r\n"
"Content-Range: bytes */4567\r\n"
"ETag: W/\"foobar42\"\r\n"
"\r\n";
vlc_http_file_seek(f, offset = 5678);
assert(vlc_http_file_can_seek(f));
assert(vlc_http_file_get_size(f) == 4567);
assert(vlc_http_file_read(f) == NULL);
vlc_http_file_destroy(f);
/* Redirect */
replies[0] = "HTTP/1.1 301 Permanent Redirect\r\n"
"Location: /somewhere/else/#here\r\n"
"\r\n";
offset = 0;
f = vlc_http_file_create(NULL, url, ua, NULL);
assert(f != NULL);
assert(!vlc_http_file_can_seek(f));
assert(vlc_http_file_get_size(f) == (uintmax_t)-1);
str = vlc_http_file_get_redirect(f);
assert(str != NULL
&& !strcmp(str, "https://www.example.com:8443/somewhere/else/"));
free(str);
vlc_http_file_destroy(f);
/* Continuation */
replies[0] = "HTTP/1.1 100 Standby\r\n"
"\r\n";
replies[1] = "HTTP/1.1 200 OK\r\n"
"Content-Length: 9999\r\n"
"\r\n";
offset = 0;
f = vlc_http_file_create(NULL, url, ua, NULL);
assert(f != NULL);
assert(vlc_http_file_get_size(f) == 9999);
assert(vlc_http_file_get_redirect(f) == NULL);
vlc_http_file_destroy(f);
/* Dummy API calls */
f = vlc_http_file_create(NULL, "ftp://localhost/foo", NULL, NULL);
assert(f == NULL);
return 0;
}
