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
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
|
#include <stdio.h>
#include <stdlib.h>
#include <sys/wait.h>
#include <time.h>
#include "str/str.h"
#include "list/list.h"
#include "net/net.h"
#include "log/log.h"
#include "ipc/ipc.h"
#define BACKLOG 15
str ipcaddr = sstr(".ipcserver");
str port;
http_server *server;
ipc_sender *sender;
struct worker {
pid_t pid;
int wsocket;
} *workers;
void worker_undertaker(int sig, siginfo_t *info, void *ucontext){
if(sig == SIGCHLD && list_entry_exists(workers, info->si_pid)){
list_remove_entry(workers, info->si_pid);
log_warn("worker %d is dead. now workers size is %d", info->si_pid, list_size(workers));
}
}
int init(char *argv[]){
port = snstr(argv[1], len(argv[1])); // error check
if(port.len <= 0 || port.len > 5){
log_error("wrong server port: '%.*s'", port.len, port.ptr);
return 1;
}
// decouple so the whole net.c doesnt get linked?
server = setup_http_server(port, BACKLOG);
if(server == NULL){
log_error("Setting up socket server");
return 1;
}
// configurable name?
sender = setup_ipc_sender(ipcaddr, BACKLOG);
if(sender == NULL){
log_error("setting up ipc sender");
return 1;
}
init_list(workers);
struct sigaction chld = { .sa_sigaction = worker_undertaker, .sa_flags = SA_SIGINFO };
if(sigaction(SIGCHLD, &chld, NULL) == -1){
log_error("init: SIGCHLD: %s", strerror(errno));
return 1;
}
return 0;
}
void deinit(void){
destroy_http_server(&server);
destroy_ipc_sender(&sender);
list_free(workers);
}
void print_usage(void){
printf("server [port]\n");
}
void show_commands(void){
printf(
"(case insensitive)\n"
"f: fork\n"
"s: signal\n"
"l: list\n"
"c: clear\n"
"[0-9]: turn off ssl for worker\n"
"h: help\n"
"q: quit\n"
);
}
#include "crc64/crc64.h"
int main(int argc, char *argv[]){
if(argc < 2){
print_usage();
return 1;
}
int return_value = 0;
if(init(argv) != 0){
return_value = 1;
goto DEINIT;
}
log_info("Config done");
#ifdef SHOW_IP
system("curl -s http://ipinfo.io/ip && echo");
#endif
/*
sqlite3 *db = setupDatabase("src/db/db.db");
if(db == NULL){
fprintf(stderr, "error setting up database\n");
return 1;
}
if(getNEntries("archive") != getCount(db, FILE_TABLE)){
int n = getNEntries("archive");
char **entries = getFiles("archive"); // getFiles deprecated btw
for(int i = 0; i < n; ++i){
insertName(db, FILE_TABLE, entries[i]);
}
printf("%d, %d\n", getNEntries("archive"), getCount(db, FILE_TABLE));
}
*/
printf("press h for help\n");
bool end = false;
while(!end){
char c = getchar();
switch(c){
case 'f': case 'F':
pid_t nw = fork();
if(nw == 0){
char *args[] = {"./worker.exe", ipcaddr.ptr, NULL};
execv("./worker.exe", args);
log_error("Cannot exec worker: %s", strerror(errno));
return 1;
}
struct worker w = { .pid = nw, .wsocket = accept(sender->ssocket, NULL, NULL) };
list_push(workers, w);
ipc_message msg = { .key = sstr("socket"), .val = utostr(server->ssocket, 10) };
send_ipc_message(w.wsocket, msg);
free_ipc_message(msg);
msg = (ipc_message){ .key = sstr("rewrites"), .val = sstr("urirewrites") };
send_ipc_message(w.wsocket, msg);
break;
case 's': case 'S':
kill(0, SIGUSR1);
break;
case 'l': case 'L':
printf("|-%3d workers working for us rn-|\n", list_size(workers));
char *faces[] = {
"(^__^)", "(·__·)", "(>__>)", "(~ _~)", "(T__T)", "(º__º)"
};
for(int i = 0; i < list_size(workers); i++){
int index = rand()%sizeof(faces)/sizeof(faces[0]);
printf("| %d %s\t\t\t|\n", workers[i].pid, faces[index]);
}
printf("|-------------------------------|\n");
break;
case 'c': case 'C':
system("clear");
break;
case 'h': case 'H':
show_commands();
break;
case 'q': case 'Q':
while(list_size(workers) > 0){
kill(workers[0].pid, SIGKILL); // redo this PLEASE
waitpid(workers[0].pid, NULL, 0);
}
while(wait(NULL) > 0);
close(server->ssocket);
end = true;
log_info("%d children remaining alive (lie)\n", list_size(workers));
break;
case '0': case '1': case '2': case '3': case '4':
case '5': case '6': case '7': case '8': case '9':
if(list_size(workers) > c-'0'){
log_info("signaling worker[%d] %d to turn off ssl\n", c-'0', workers[c-'0'].pid);
sigqueue(workers[c-'0'].pid, SIGRTMIN, (union sigval){.sival_int = 0});
}
break;
}
}
DEINIT:
deinit();
return return_value;
}
// inspiration: https://www.youtube.com/watch?v=cEH_ipqHbUw (https://github.com/infraredCoding/cerveur)
// thanks to
/*
https://beej.us/guide/bgnet/
https://dev.to/lloyds-digital/how-you-can-host-websites-from-home-4pke
https://developer.mozilla.org/en-US/docs/Web/HTTP/Messages
https://www.favicon.cc
https://www.cssscript.com/demo/animated-snowfall-effect/
https://www.cssscript.com/demo/animated-snowfall-effect/PureSnow.js
https://www.tutorialspoint.com/http/http_requests.htm
https://codepen.io/afarrar/pen/JRaEjP
*/
|
