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
|
#ifndef ICCLIENT_REQUEST_H
#define ICCLIENT_REQUEST_H
#if defined __ANDROID__ && defined DEBUG
#include <android/log.h>
#endif
#include <stdio.h>
#include <stdlib.h>
#include <stdarg.h>
#include <string.h>
#ifndef __EMSCRIPTEN__
#include <threads.h>
#include <curl/curl.h>
#endif
#include "icclient/typedefs.h"
struct body {
size_t num_pairs;
struct pair {
const char *key;
const char *value;
} pairs[16];
};
#ifndef __EMSCRIPTEN__
extern char *sampleurl;
extern char *certificate;
size_t append(char *, size_t, size_t, icclient_response *);
#endif
static inline void request(void (*handler)(icclient_response *), void (*callback)(void *), struct body *body, char *fmt, ...)
{
va_list ap;
char *p, *sval;
unsigned int ival;
size_t length =
#ifndef __EMSCRIPTEN__
strlen(sampleurl) +
#endif
strlen(fmt);
va_start(ap, fmt);
for (p = fmt; *p; p++) {
if (*p != '%')
continue;
switch(*++p) {
case 's':
sval = va_arg(ap, char *);
length += strlen(sval) - 2;
break;
case 'd':
ival = va_arg(ap, unsigned int);
do {
length++;
} while ((ival /= 10));
length -= 2;
break;
default:
break;
}
}
va_end(ap);
char url[length + 1];
#ifdef __EMSCRIPTEN__
memset(url, '\0', length + 1);
#else
strcpy(url, sampleurl);
#endif
va_start(ap, fmt);
for (p = fmt; *p; p++) {
if (*p != '%')
continue;
switch(*++p) {
case 's':
sval = va_arg(ap, char *);
strcat(url, sval);
break;
case 'd':
ival = va_arg(ap, unsigned int);
sprintf(url, "%s%d", url, ival);
break;
default:
break;
}
}
va_end(ap);
#ifdef __EMSCRIPTEN__
emscripten_fetch_attr_t attr;
emscripten_fetch_attr_init(&attr);
attr.attributes = EMSCRIPTEN_FETCH_LOAD_TO_MEMORY;
if (handler)
attr.onsuccess = handler;
if (body) {
size_t length = 0;
char *post = malloc(1);
memset(post, '\0', 1);
for (size_t i = 0; i < body->num_pairs; i++) {
struct pair pair = body->pairs[i];
if (!pair.value)
continue;
length += strlen(pair.key) + strlen(pair.value) + (i ? 1 : 0) + 1;
post = realloc(post, length + 1);
if (i)
strcat(post, "&");
sprintf(post, "%s%s=%s", post, pair.key, pair.value);
}
strcpy(attr.requestMethod, "POST");
const char *headers[] = { "Content-Type", "application/x-www-form-urlencoded", NULL };
attr.requestHeaders = headers;
attr.requestData = post;
attr.requestDataSize = length + 1;
attr.userData = post;
} else {
strcpy(attr.requestMethod, "GET");
attr.userData = callback;
}
emscripten_fetch(&attr, url);
#else
CURL *curl = curl_easy_init();
curl_easy_setopt(curl, CURLOPT_FOLLOWLOCATION, 1L);
curl_easy_setopt(curl, CURLOPT_COOKIEFILE, "");
if (certificate)
curl_easy_setopt(curl, CURLOPT_CAINFO, certificate);
#ifdef DEBUG
curl_easy_setopt(curl, CURLOPT_VERBOSE, 1L);
#endif
curl_easy_setopt(curl, CURLOPT_URL, url);
curl_easy_setopt(curl, CURLOPT_WRITEFUNCTION, append);
icclient_response response = { .userData = callback, .numBytes = 0 };
curl_easy_setopt(curl, CURLOPT_WRITEDATA, &response);
struct curl_httppost *post, *last = NULL;
if (body) {
for (size_t i = 0; i < body->num_pairs; i++) {
struct pair pair = body->pairs[i];
if (!pair.value)
continue;
curl_formadd(&post, &last,
CURLFORM_COPYNAME, pair.key,
CURLFORM_PTRCONTENTS, pair.value,
CURLFORM_END);
}
last = NULL;
curl_easy_setopt(curl, CURLOPT_HTTPPOST, post);
} else
curl_easy_setopt(curl, CURLOPT_HTTPGET, 1L);
CURLcode res = curl_easy_perform(curl);
if (post)
curl_formfree(post);
if (res == CURLE_OK && handler)
handler(&response);
#ifdef DEBUG
else {
const char *error = curl_easy_strerror(res);
#ifdef __ANDROID__
__android_log_print(ANDROID_LOG_ERROR, "libicclient.so", "%s", error);
#else
fprintf(stderr, "%s\n", error);
#endif
}
#endif
curl_easy_cleanup(curl);
#endif
}
#endif
|
