#include "http_server.h"
// HTML页面模板
const char* html_page = ""
""
"W5500 Configuration"
""
""
"W5500 Network Configuration
"
""
""
" Network Status: %s"
"
"
"";
// 解析HTTP请求
static void parse_http_request(uint8_t* buffer, uint16_t length, http_request* req)
{
char* method = strtok((char*)buffer, " ");
char* uri = strtok(NULL, " ");
if(strcmp(method, "GET") == 0) {
req->method = HTTP_GET;
} else if(strcmp(method, "POST") == 0) {
req->method = HTTP_POST;
} else {
req->method = HTTP_UNKNOWN;
}
strncpy(req->uri, uri, MAX_URI_SIZE);
// 如果是POST请求，查找请求体
if(req->method == HTTP_POST) {
char* body = strstr((char*)buffer, "\r\n\r\n");
if(body) {
body += 4;
req->body = (uint8_t*)body;
req->body_length = length - (body - (char*)buffer);
}
}
}
// 发送HTTP响应
static void send_response(uint8_t sn, const char* content, uint16_t length)
{
char header[128];
sprintf(header,
"HTTP/1.1 200 OK\r\n"
"Content-Type: text/html\r\n"
"Content-Length: %d\r\n"
"\r\n", length);
send(sn, (uint8_t*)header, strlen(header));
send(sn, (uint8_t*)content, length);
}
// 处理配置页面请求
static void handle_config_page(uint8_t sn)
{
char page[4096]; // 增加缓冲区大小以适应新的HTML内容
bool is_connected = (wizphy_getphylink() == PHY_LINK_ON);
char* link_status = is_connected ? "Connected" : "Disconnected";
char* status_class = is_connected ? "connected" : "disconnected";
sprintf(page, html_page,
gWIZNETINFO.mac[0], gWIZNETINFO.mac[1], gWIZNETINFO.mac[2],
gWIZNETINFO.mac[3], gWIZNETINFO.mac[4], gWIZNETINFO.mac[5],
gWIZNETINFO.ip[0], gWIZNETINFO.ip[1], gWIZNETINFO.ip[2], gWIZNETINFO.ip[3],
gWIZNETINFO.sn[0], gWIZNETINFO.sn[1], gWIZNETINFO.sn[2], gWIZNETINFO.sn[3],
gWIZNETINFO.gw[0], gWIZNETINFO.gw[1], gWIZNETINFO.gw[2], gWIZNETINFO.gw[3],
status_class, link_status);
send_response(sn, page, strlen(page));
}
// 解析并更新网络配置
static void update_network_config(const char* body)
{
char mac[18], ip[16], subnet[16], gateway[16];
uint32_t mac_values[6], ip_values[4], subnet_values[4], gateway_values[4];
if(sscanf(body, "mac=%02X%%3A%02X%%3A%02X%%3A%02X%%3A%02X%%3A%02X&"
"ip=%d.%d.%d.%d&"
"subnet=%d.%d.%d.%d&"
"gateway=%d.%d.%d.%d",
&mac_values[0], &mac_values[1], &mac_values[2],
&mac_values[3], &mac_values[4], &mac_values[5],
&ip_values[0], &ip_values[1], &ip_values[2], &ip_values[3],
&subnet_values[0], &subnet_values[1], &subnet_values[2], &subnet_values[3],
&gateway_values[0], &gateway_values[1], &gateway_values[2], &gateway_values[3]) == 18)
{
// 更新MAC地址
for(int i = 0; i < 6; i++) {
gWIZNETINFO.mac[i] = (uint8_t)mac_values[i];
}
// 更新IP地址
for(int i = 0; i < 4; i++) {
gWIZNETINFO.ip[i] = (uint8_t)ip_values[i];
gWIZNETINFO.sn[i] = (uint8_t)subnet_values[i];
gWIZNETINFO.gw[i] = (uint8_t)gateway_values[i];
}
// 应用新的网络配置
wizchip_setnetinfo(&gWIZNETINFO);
}
}
void http_server_init(void)
{
// 创建服务器socket
socket(HTTP_SERVER_SOCKET, Sn_MR_TCP, HTTP_SERVER_PORT, 0);
listen(HTTP_SERVER_SOCKET);
}
void http_server_task(void)
{
uint8_t buffer[2048];
uint16_t size;
uint8_t status = getSn_SR(HTTP_SERVER_SOCKET);
switch(status)
{
case SOCK_LISTEN:
// 等待连接
break;
case SOCK_ESTABLISHED:
{
// 接收数据
if((size = getSn_RX_RSR(HTTP_SERVER_SOCKET)) > 0)
{
size = recv(HTTP_SERVER_SOCKET, buffer, sizeof(buffer));
if(size > 0)
{
http_request req;
parse_http_request(buffer, size, &req);
if(req.method == HTTP_GET) {
handle_config_page(HTTP_SERVER_SOCKET);
}
else if(req.method == HTTP_POST && strcmp(req.uri, "/config") == 0) {
update_network_config((char*)req.body);
// 重定向回配置页面
send_response(HTTP_SERVER_SOCKET,
"",
strlen(""));
}
}
}
break;
}
case SOCK_CLOSE_WAIT:
disconnect(HTTP_SERVER_SOCKET);
break;
case SOCK_CLOSED:
socket(HTTP_SERVER_SOCKET, Sn_MR_TCP, HTTP_SERVER_PORT, 0);
listen(HTTP_SERVER_SOCKET);
break;
}
}