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Reverse proxy working

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Lorenz Stechauner
2021-01-07 21:58:45 +01:00
parent 785ab31890
commit 95946b1666
12 changed files with 515 additions and 387 deletions
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49
src/http.c
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@ -72,7 +72,7 @@ int http_parse_header_field(http_hdr *hdr, const char *buf, const char *end_ptr)
}
int http_receive_request(sock *client, http_req *req) {
unsigned long rcv_len, len;
long rcv_len, len;
char *ptr, *pos0, *pos1, *pos2;
char buf[CLIENT_MAX_HEADER_SIZE];
memset(buf, 0, sizeof(buf));
@ -82,22 +82,9 @@ int http_receive_request(sock *client, http_req *req) {
req->hdr.field_num = 0;
while (1) {
if (client->enc) {
rcv_len = SSL_read(client->ssl, buf, CLIENT_MAX_HEADER_SIZE);
if (rcv_len < 0) {
print(ERR_STR "Unable to receive: %s" CLR_STR, ssl_get_error(client->ssl, rcv_len));
return -1;
}
} else {
rcv_len = recv(client->socket, buf, CLIENT_MAX_HEADER_SIZE, 0);
if (rcv_len < 0) {
print(ERR_STR "Unable to receive: %s" CLR_STR, strerror(errno));
return -1;
}
}
if (rcv_len == 0) {
print("Unable to receive: closed");
rcv_len = sock_recv(client, buf, CLIENT_MAX_HEADER_SIZE, 0);
if (rcv_len <= 0) {
print("Unable to receive: %s", sock_strerror(client));
return -1;
}
@ -233,21 +220,27 @@ void http_remove_header_field(http_hdr *hdr, const char *field_name, int mode) {
int http_send_response(sock *client, http_res *res) {
char buf[CLIENT_MAX_HEADER_SIZE];
int len = 0;
int snd_len = 0;
len += sprintf(buf + len, "HTTP/%s %03i %s\r\n", res->version, res->status->code, res->status->msg);
long off = sprintf(buf, "HTTP/%s %03i %s\r\n", res->version, res->status->code, res->status->msg);
for (int i = 0; i < res->hdr.field_num; i++) {
len += sprintf(buf + len, "%s: %s\r\n", res->hdr.fields[i][0], res->hdr.fields[i][1]);
off += sprintf(buf + off, "%s: %s\r\n", res->hdr.fields[i][0], res->hdr.fields[i][1]);
}
len += sprintf(buf + len, "\r\n");
if (client->enc) {
snd_len = SSL_write(client->ssl, buf, len);
} else {
snd_len = send(client->socket, buf, len, 0);
off += sprintf(buf + off, "\r\n");
if (sock_send(client, buf, off, 0) < 0) {
return -1;
}
return 0;
}
int http_send_request(sock *server, http_req *req) {
char buf[CLIENT_MAX_HEADER_SIZE];
long off = sprintf(buf, "%s %s HTTP/%s\r\n", req->method, req->uri, req->version);
for (int i = 0; i < req->hdr.field_num; i++) {
off += sprintf(buf + off, "%s: %s\r\n", req->hdr.fields[i][0], req->hdr.fields[i][1]);
}
off += sprintf(buf + off, "\r\n");
if (sock_send(server, buf, off, 0) <= 0) {
return -1;
}
return 0;
}