1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
|
// SPDX-License-Identifier: GPL-3.0-or-later
#define WEB_SERVER_INTERNALS 1
#include "web_server.h"
WEB_SERVER_MODE web_server_mode = WEB_SERVER_MODE_STATIC_THREADED;
// --------------------------------------------------------------------------------------
WEB_SERVER_MODE web_server_mode_id(const char *mode) {
if(!strcmp(mode, "none"))
return WEB_SERVER_MODE_NONE;
else
return WEB_SERVER_MODE_STATIC_THREADED;
}
const char *web_server_mode_name(WEB_SERVER_MODE id) {
switch(id) {
case WEB_SERVER_MODE_NONE:
return "none";
default:
case WEB_SERVER_MODE_STATIC_THREADED:
return "static-threaded";
}
}
// --------------------------------------------------------------------------------------
// API sockets
LISTEN_SOCKETS api_sockets = {
.config = &netdata_config,
.config_section = CONFIG_SECTION_WEB,
.default_bind_to = "*",
.default_port = API_LISTEN_PORT,
.backlog = API_LISTEN_BACKLOG
};
void debug_sockets() {
BUFFER *wb = buffer_create(256 * sizeof(char));
int i;
for(i = 0 ; i < (int)api_sockets.opened ; i++) {
buffer_strcat(wb, (api_sockets.fds_acl_flags[i] & WEB_CLIENT_ACL_NOCHECK)?"NONE ":"");
buffer_strcat(wb, (api_sockets.fds_acl_flags[i] & WEB_CLIENT_ACL_DASHBOARD)?"dashboard ":"");
buffer_strcat(wb, (api_sockets.fds_acl_flags[i] & WEB_CLIENT_ACL_REGISTRY)?"registry ":"");
buffer_strcat(wb, (api_sockets.fds_acl_flags[i] & WEB_CLIENT_ACL_BADGE)?"badges ":"");
buffer_strcat(wb, (api_sockets.fds_acl_flags[i] & WEB_CLIENT_ACL_MGMT)?"management ":"");
buffer_strcat(wb, (api_sockets.fds_acl_flags[i] & WEB_CLIENT_ACL_STREAMING)?"streaming ":"");
buffer_strcat(wb, (api_sockets.fds_acl_flags[i] & WEB_CLIENT_ACL_NETDATACONF)?"netdata.conf ":"");
debug(D_WEB_CLIENT, "Socket fd %d name '%s' acl_flags: %s",
i,
api_sockets.fds_names[i],
buffer_tostring(wb));
buffer_reset(wb);
}
buffer_free(wb);
}
void api_listen_sockets_setup(void) {
int socks = listen_sockets_setup(&api_sockets);
if(!socks)
fatal("LISTENER: Cannot listen on any API socket. Exiting...");
if(unlikely(debug_flags & D_WEB_CLIENT))
debug_sockets();
return;
}
// --------------------------------------------------------------------------------------
// access lists
SIMPLE_PATTERN *web_allow_connections_from = NULL;
// WEB_CLIENT_ACL
SIMPLE_PATTERN *web_allow_dashboard_from = NULL;
SIMPLE_PATTERN *web_allow_registry_from = NULL;
SIMPLE_PATTERN *web_allow_badges_from = NULL;
SIMPLE_PATTERN *web_allow_mgmt_from = NULL;
SIMPLE_PATTERN *web_allow_streaming_from = NULL;
SIMPLE_PATTERN *web_allow_netdataconf_from = NULL;
void web_client_update_acl_matches(struct web_client *w) {
w->acl = WEB_CLIENT_ACL_NONE;
if(!web_allow_dashboard_from || simple_pattern_matches(web_allow_dashboard_from, w->client_ip))
w->acl |= WEB_CLIENT_ACL_DASHBOARD;
if(!web_allow_registry_from || simple_pattern_matches(web_allow_registry_from, w->client_ip))
w->acl |= WEB_CLIENT_ACL_REGISTRY;
if(!web_allow_badges_from || simple_pattern_matches(web_allow_badges_from, w->client_ip))
w->acl |= WEB_CLIENT_ACL_BADGE;
if(!web_allow_mgmt_from || simple_pattern_matches(web_allow_mgmt_from, w->client_ip))
w->acl |= WEB_CLIENT_ACL_MGMT;
if(!web_allow_streaming_from || simple_pattern_matches(web_allow_streaming_from, w->client_ip))
w->acl |= WEB_CLIENT_ACL_STREAMING;
if(!web_allow_netdataconf_from || simple_pattern_matches(web_allow_netdataconf_from, w->client_ip))
w->acl |= WEB_CLIENT_ACL_NETDATACONF;
w->acl &= w->port_acl;
}
// --------------------------------------------------------------------------------------
void web_server_log_connection(struct web_client *w, const char *msg) {
log_access("%llu: %d '[%s]:%s' '%s'", w->id, gettid(), w->client_ip, w->client_port, msg);
}
// --------------------------------------------------------------------------------------
void web_client_initialize_connection(struct web_client *w) {
int flag = 1;
if(unlikely(web_client_check_tcp(w) && setsockopt(w->ifd, IPPROTO_TCP, TCP_NODELAY, (char *) &flag, sizeof(int)) != 0))
debug(D_WEB_CLIENT, "%llu: failed to enable TCP_NODELAY on socket fd %d.", w->id, w->ifd);
flag = 1;
if(unlikely(setsockopt(w->ifd, SOL_SOCKET, SO_KEEPALIVE, (char *) &flag, sizeof(int)) != 0))
debug(D_WEB_CLIENT, "%llu: failed to enable SO_KEEPALIVE on socket fd %d.", w->id, w->ifd);
web_client_update_acl_matches(w);
w->origin[0] = '*'; w->origin[1] = '\0';
w->cookie1[0] = '\0'; w->cookie2[0] = '\0';
freez(w->user_agent); w->user_agent = NULL;
web_client_enable_wait_receive(w);
web_server_log_connection(w, "CONNECTED");
web_client_cache_verify(0);
}
|
