-
Notifications
You must be signed in to change notification settings - Fork 50
/
nsq_lookupd.c
169 lines (137 loc) · 5.42 KB
/
nsq_lookupd.c
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
/*
+----------------------------------------------------------------------+
| Copyright (c) 1997-2017 The PHP Group |
+----------------------------------------------------------------------+
| This source file is subject to version 3.01 of the PHP license, |
| that is bundled with this package in the file LICENSE, and is |
| available through the world-wide-web at the following url: |
| http://www.php.net/license/3_01.txt |
| If you did not receive a copy of the PHP license and are unable to |
| obtain it through the world-wide-web, please send a note to |
| license@php.net so we can mail you a copy immediately. |
+----------------------------------------------------------------------+
| Author: Zhenyu wu <wuzhenyu@kuangjue.com> |
+----------------------------------------------------------------------+
*/
#include <php.h>
#include <stdio.h>
#include <string.h>
#include <assert.h>
#include "ext/standard/php_var.h"
#include "nsq_lookupd.h"
#include "common.h"
#include "event2/http.h"
#include "event2/http_struct.h"
#include "event2/event.h"
#include "event2/buffer.h"
#include "event2/dns.h"
#include "event2/thread.h"
#include <event.h>
extern void error_handling(char *message);
typedef struct {
struct event_base *base;
char *result;
} result;
ZEND_BEGIN_ARG_INFO_EX(ctor, 0, 0, 1)
ZEND_ARG_INFO(0, address)
ZEND_END_ARG_INFO()
static PHP_METHOD(NsqLookupd, __construct);
zend_class_entry *nsq_lookupd_ce;
static const zend_function_entry nsq_lookupd_functions[] = {
PHP_ME(NsqLookupd, __construct, ctor, ZEND_ACC_PUBLIC | ZEND_ACC_CTOR)
PHP_FE_END /* Must be the last line in nsq_functions[] */
};
void lookupd_init() {
zend_class_entry nsq_lookupd;
INIT_CLASS_ENTRY(nsq_lookupd, "NsqLookupd", nsq_lookupd_functions);
nsq_lookupd_ce = zend_register_internal_class(&nsq_lookupd);
zend_declare_property_null(nsq_lookupd_ce, ZEND_STRL("address"), ZEND_ACC_PUBLIC);
}
PHP_METHOD (NsqLookupd, __construct) {
zval *self;
zval *address;
self = getThis();
ZEND_PARSE_PARAMETERS_START(1, 1)
Z_PARAM_ZVAL(address)
ZEND_PARSE_PARAMETERS_END();
zend_update_property(Z_OBJCE_P(self), NSQ_COMPAT_OBJ_P(self), ZEND_STRL("address"), address);
}
void FinshCallback(struct evhttp_request *remote_rsp, void *arg) {
result *re = arg;
const int code = remote_rsp ? evhttp_request_get_response_code(remote_rsp) : 0;
struct evbuffer *buf = evhttp_request_get_input_buffer(remote_rsp);
evbuffer_add(buf, "", 1); /* NUL-terminate the buffer */
char *payload = (char *) evbuffer_pullup(buf, -1);
re->result = strdup(payload);
event_base_loopbreak(re->base);
//event_base_loopexit((struct event_base*)arg, NULL);
}
void RequestErrorCallback(enum evhttp_request_error *error, void *arg) {
fprintf(stderr, "request failed\n");
event_base_loopexit((struct event_base *) arg, NULL);
}
void ConnectionCloseCallback(struct evhttp_connection *connection, void *arg) {
fprintf(stderr, "remote connection closed\n");
event_base_loopexit((struct event_base *) arg, NULL);
}
char *lookup(char *host, char *topic) {
char *url = emalloc(sizeof(host) + sizeof(topic) + 128);
if (strstr(host, "http://")) {
sprintf(url, "%s%s%s", host, "/lookup?topic=", topic);
} else {
sprintf(url, "%s%s%s%s", "http://", host, "/lookup?topic=", topic);
}
char *data = request(url);
efree(url);
return data;
}
char *request(char *url) {
char *msg ;
struct evhttp_uri *uri = evhttp_uri_parse(url);
if (!uri) {
fprintf(stderr, "parse url failed!\n");
msg = "{\"message\":\"parse url failed!\"}";
return msg;
}
struct event_base *base = event_base_new();
if (!base) {
fprintf(stderr, "create event base failed!\n");
msg = "{\"message\":\"create event base failed!\"}";
return msg;
}
struct evdns_base *dnsbase = evdns_base_new(base, 1);
if (!dnsbase) {
fprintf(stderr, "create dns base failed!\n");
msg = "{\"message\":\"create dns base failed!\"}";
return msg;
}
assert(dnsbase);
result * re = (result * ) emalloc ( sizeof(result) );
re->base = base;
struct evhttp_request *request = evhttp_request_new(FinshCallback, re);
//evhttp_request_set_error_cb(request, RequestErrorCallback);
const char *host = evhttp_uri_get_host(uri);
if (!host) {
fprintf(stderr, "parse host failed!\n");
msg = "{\"message\":\"stderr, parse host failed!\"}";
return msg;
}
int port = evhttp_uri_get_port(uri);
if (port < 0) port = 80;
const char *request_url = url;
const char *path = evhttp_uri_get_path(uri);
if (path == NULL || strlen(path) == 0) {
request_url = "/";
}
struct evhttp_connection *connection = evhttp_connection_base_new(base, dnsbase, host, port);
if (!connection) {
fprintf(stderr, "create evhttp connection failed!\n");
msg = "{\"message\":\"create evhttp connection failed!\"}";
return msg;
}
evhttp_connection_set_closecb(connection, ConnectionCloseCallback, base);
evhttp_add_header(evhttp_request_get_output_headers(request), "Host", host);
evhttp_make_request(connection, request, EVHTTP_REQ_GET, request_url);
event_base_dispatch(base);
return re->result;
}