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Fixed reverse proxy timeout

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This commit is contained in:
Lorenz Stechauner
2021-11-12 15:16:09 +01:00
parent fe0cdc9b1a
commit 171bca55fa
4 changed files with 35 additions and 13 deletions
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37
src/lib/rev_proxy.c
View File

@@ -181,18 +181,12 @@ int rev_proxy_init(http_req *req, http_res *res, http_status_ctx *ctx, host_conf
return -1;
}
server_timeout.tv_sec = SERVER_TIMEOUT;
server_timeout.tv_sec = SERVER_TIMEOUT_INIT;
server_timeout.tv_usec = 0;
if (setsockopt(rev_proxy.socket, SOL_SOCKET, SO_RCVTIMEO, &server_timeout, sizeof(server_timeout)) < 0)
goto rev_proxy_timeout_err;
if (setsockopt(rev_proxy.socket, SOL_SOCKET, SO_SNDTIMEO, &server_timeout, sizeof(server_timeout)) < 0) {
rev_proxy_timeout_err:
res->status = http_get_status(500);
ctx->origin = INTERNAL;
print(ERR_STR "Unable to set timeout for socket: %s" CLR_STR, strerror(errno));
sprintf(err_msg, "Unable to set timeout for socket: %s", strerror(errno));
goto proxy_err;
}
if (setsockopt(rev_proxy.socket, SOL_SOCKET, SO_SNDTIMEO, &server_timeout, sizeof(server_timeout)) < 0)
goto rev_proxy_timeout_err;
struct hostent *host_ent = gethostbyname2(conf->rev_proxy.hostname, AF_INET6);
if (host_ent == NULL) {
@@ -234,6 +228,19 @@ int rev_proxy_init(http_req *req, http_res *res, http_status_ctx *ctx, host_conf
goto proxy_err;
}
server_timeout.tv_sec = SERVER_TIMEOUT;
server_timeout.tv_usec = 0;
if (setsockopt(rev_proxy.socket, SOL_SOCKET, SO_RCVTIMEO, &server_timeout, sizeof(server_timeout)) < 0)
goto rev_proxy_timeout_err;
if (setsockopt(rev_proxy.socket, SOL_SOCKET, SO_SNDTIMEO, &server_timeout, sizeof(server_timeout)) < 0) {
rev_proxy_timeout_err:
res->status = http_get_status(500);
ctx->origin = INTERNAL;
print(ERR_STR "Unable to set timeout for reverse proxy socket: %s" CLR_STR, strerror(errno));
sprintf(err_msg, "Unable to set timeout for reverse proxy socket: %s", strerror(errno));
goto proxy_err;
}
if (conf->rev_proxy.enc) {
rev_proxy.ssl = SSL_new(rev_proxy.ctx);
SSL_set_fd(rev_proxy.ssl, rev_proxy.socket);
@@ -319,8 +326,16 @@ int rev_proxy_init(http_req *req, http_res *res, http_status_ctx *ctx, host_conf
ret = sock_recv(&rev_proxy, buffer, sizeof(buffer), MSG_PEEK);
if (ret <= 0) {
res->status = http_get_status(502);
ctx->origin = SERVER_RES;
int enc_err = sock_enc_error(&rev_proxy);
if (errno == EAGAIN || errno == EINPROGRESS || enc_err == SSL_ERROR_WANT_READ ||
enc_err == SSL_ERROR_WANT_WRITE)
{
res->status = http_get_status(504);
ctx->origin = SERVER_RES;
} else {
res->status = http_get_status(502);
ctx->origin = SERVER_RES;
}
print(ERR_STR "Unable to receive response from server: %s" CLR_STR, sock_strerror(&rev_proxy));
sprintf(err_msg, "Unable to receive response from server: %s.", sock_strerror(&rev_proxy));
goto proxy_err;

6
src/lib/sock.c
View File

@@ -12,6 +12,10 @@
#include <sys/socket.h>
#include <unistd.h>
int sock_enc_error(sock *s) {
return (int) s->enc ? SSL_get_error(s->ssl, (int) s->_last_ret) : 0;
}
const char *sock_strerror(sock *s) {
if (s->_last_ret == 0) {
return "closed";
@@ -21,7 +25,7 @@ const char *sock_strerror(sock *s) {
}
const char *err1 = ERR_reason_error_string(s->_ssl_error);
const char *err2 = strerror(errno);
switch (SSL_get_error(s->ssl, (int) s->_last_ret)) {
switch (sock_enc_error(s)) {
case SSL_ERROR_NONE:
return NULL;
case SSL_ERROR_ZERO_RETURN:

2
src/lib/sock.h
View File

@@ -23,6 +23,8 @@ typedef struct {
unsigned long _ssl_error;
} sock;
int sock_enc_error(sock *s);
const char *sock_strerror(sock *s);
long sock_send(sock *s, void *buf, unsigned long len, int flags);

3
src/necronda-server.h
View File

@@ -17,7 +17,8 @@
#define LISTEN_BACKLOG 16
#define REQ_PER_CONNECTION 200
#define CLIENT_TIMEOUT 3600
#define SERVER_TIMEOUT 4
#define SERVER_TIMEOUT_INIT 4
#define SERVER_TIMEOUT 3600
#define CHUNK_SIZE 8192