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improve byte-range support

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this fixes the lower and upper offset and adds a 416 (range not satisfiable
status). It returns the filesize if it cannot be satisfied as the standard
suggests so the client can do something.
This commit is contained in:
Hiltjo Posthuma 2017-07-04 21:27:20 +02:00 committed by Laslo Hunhold
parent 9b8e2bdeb6
commit eda2c150e4
1 changed files with 20 additions and 6 deletions
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26
quark.c
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@ -73,6 +73,7 @@ enum status {
S_NOT_FOUND = 404,
S_METHOD_NOT_ALLOWED = 405,
S_REQUEST_TIMEOUT = 408,
S_RANGE_NOT_SATISFIABLE = 416,
S_REQUEST_TOO_LARGE = 431,
S_INTERNAL_SERVER_ERROR = 500,
S_VERSION_NOT_SUPPORTED = 505,
@ -88,6 +89,7 @@ static char *status_str[] = {
[S_NOT_FOUND] = "Not Found",
[S_METHOD_NOT_ALLOWED] = "Method Not Allowed",
[S_REQUEST_TIMEOUT] = "Request Time-out",
[S_RANGE_NOT_SATISFIABLE] = "Range Not Satisfiable",
[S_REQUEST_TOO_LARGE] = "Request Header Fields Too Large",
[S_INTERNAL_SERVER_ERROR] = "Internal Server Error",
[S_VERSION_NOT_SUPPORTED] = "HTTP Version not supported",
@ -441,13 +443,13 @@ sendfile(int fd, char *name, struct request *r, struct stat *st, char *mime,
"Content-Type: %s\r\n"
"Content-Length: %zu\r\n",
s, status_str[s], timestamp(0, t1),
timestamp(st->st_mtim.tv_sec, t2), mime, upper - lower) < 0) {
timestamp(st->st_mtim.tv_sec, t2), mime, upper - lower + 1) < 0) {
s = S_REQUEST_TIMEOUT;
goto cleanup;
}
if (range) {
if (dprintf(fd, "Content-Range: bytes %zu-%zu/%zu\r\n",
lower, upper - 1, st->st_size) < 0) {
lower, upper, st->st_size) < 0) {
s = S_REQUEST_TIMEOUT;
goto cleanup;
}
@ -666,10 +668,22 @@ sendresponse(int fd, struct request *r)
upper = atoi(q);
}
/* sanitize range */
upper = MIN(st.st_size, upper);
if (lower < 0 || upper < 0 || lower > upper) {
return sendstatus(fd, S_BAD_REQUEST);
/* check range */
if (lower < 0 || upper < 0 || lower > upper ||
upper >= st.st_size) {
if (dprintf(fd,
"HTTP/1.1 %d %s\r\n"
"Date: %s\r\n"
"Content-Range: bytes */%zu\r\n"
"Connection: close\r\n"
"\r\n",
S_RANGE_NOT_SATISFIABLE,
status_str[S_RANGE_NOT_SATISFIABLE],
timestamp(0, t),
st.st_size) < 0) {
return S_REQUEST_TIMEOUT;
}
return S_RANGE_NOT_SATISFIABLE;
}
}