int http_simple_client_encode(obfs *self, char **pencryptdata, int datalength, size_t* capacity) {
char *encryptdata = *pencryptdata;
http_simple_local_data *local = (http_simple_local_data*)self->l_data;
if (local->has_sent_header) {
return datalength;
}
char hostport[128];
int head_size = self->server.head_len + (xorshift128plus() & 0x3F);
int outlength;
char * out_buffer = (char*)malloc(datalength + 2048);
if (head_size > datalength)
head_size = datalength;
http_simple_encode_head(local, encryptdata, head_size);
if (self->server.param && strlen(self->server.param) == 0)
self->server.param = NULL;
if (self->server.port == 80)
sprintf(hostport, "%s", (self->server.param ? self->server.param : self->server.host));
else
sprintf(hostport, "%s:%d", (self->server.param ? self->server.param : self->server.host), self->server.port);
sprintf(out_buffer,
"GET /%s HTTP/1.1\r\n"
"Host: %s\r\n"
"User-Agent: %s\r\n"
"Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8\r\n"
"Accept-Language: en-US,en;q=0.8\r\n"
"Accept-Encoding: gzip, deflate\r\n"
"DNT: 1\r\n"
"Connection: keep-alive\r\n"
"\r\n",
local->encode_buffer,
hostport,
"Mozilla/5.0 (Windows NT 6.3; WOW64; rv:40.0) Gecko/20100101 Firefox/40.0"
);
outlength = strlen(out_buffer);
memmove(out_buffer + outlength, encryptdata + head_size, datalength - head_size);
outlength += datalength - head_size;
local->has_sent_header = 1;
if (*capacity < outlength) {
*pencryptdata = (char*)realloc(*pencryptdata, *capacity = outlength * 2);
encryptdata = *pencryptdata;
}
memmove(encryptdata, out_buffer, outlength);
free(out_buffer);
if (local->encode_buffer != NULL) {
free(local->encode_buffer);
local->encode_buffer = NULL;
}
return outlength;
}
int http_simple_client_encode(obfs *self, char **pencryptdata, int datalength, size_t* capacity) {
char *encryptdata = *pencryptdata;
http_simple_local_data *local = (http_simple_local_data*)self->l_data;
if (local->has_sent_header) {
return datalength;
}
char hosts[1024];
char * phost[128];
int host_num = 0;
int pos;
char hostport[128];
int head_size = self->server.head_len + (xorshift128plus() & 0x3F);
int outlength;
char * out_buffer = (char*)malloc(datalength + 2048);
char * body_buffer = NULL;
if (head_size > datalength)
head_size = datalength;
http_simple_encode_head(local, encryptdata, head_size);
if (self->server.param && strlen(self->server.param) == 0)
self->server.param = NULL;
strncpy(hosts, self->server.param ? self->server.param : self->server.host, sizeof hosts);
phost[host_num++] = hosts;
for (pos = 0; hosts[pos]; ++pos) {
if (hosts[pos] == ',') {
phost[host_num++] = &hosts[pos + 1];
hosts[pos] = 0;
} else if (hosts[pos] == '#') {
char * body_pointer = &hosts[pos + 1];
char * p;
int trans_char = 0;
p = body_buffer = (char*)malloc(2048);
for ( ; *body_pointer; ++body_pointer) {
if (*body_pointer == '\\') {
trans_char = 1;
continue;
}
if (trans_char) {
if (*body_pointer == '\\' ) {
*p = '\\';
} else if (*body_pointer == 'n' ) {
*p = '\r';
*++p = '\n';
} else {
*p = '\\';
*p = *body_pointer;
}
trans_char = 0;
} else {
*p = *body_pointer;
}
++p;
}
hosts[pos] = 0;
break;
}
}
host_num = xorshift128plus() % host_num;
if (self->server.port == 80)
sprintf(hostport, "%s", phost[host_num]);
else
sprintf(hostport, "%s:%d", phost[host_num], self->server.port);
if (body_buffer) {
sprintf(out_buffer,
"GET /%s HTTP/1.1\r\n"
"Host: %s\r\n"
"%s\r\n\r\n",
local->encode_buffer,
hostport,
body_buffer);
} else {
sprintf(out_buffer,
"GET /%s HTTP/1.1\r\n"
"Host: %s\r\n"
"User-Agent: %s\r\n"
"Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8\r\n"
"Accept-Language: en-US,en;q=0.8\r\n"
"Accept-Encoding: gzip, deflate\r\n"
"DNT: 1\r\n"
"Connection: keep-alive\r\n"
"\r\n",
local->encode_buffer,
hostport,
g_useragent[g_useragent_index]
);
}
outlength = strlen(out_buffer);
memmove(out_buffer + outlength, encryptdata + head_size, datalength - head_size);
outlength += datalength - head_size;
local->has_sent_header = 1;
if (*capacity < outlength) {
*pencryptdata = (char*)realloc(*pencryptdata, *capacity = outlength * 2);
encryptdata = *pencryptdata;
}
memmove(encryptdata, out_buffer, outlength);
free(out_buffer);
if (body_buffer != NULL)
free(body_buffer);
if (local->encode_buffer != NULL) {
free(local->encode_buffer);
local->encode_buffer = NULL;
}
return outlength;
}
