初始化/推送

2026-08-14 04:57:34 +08:00
commit 1824d1b4d3
5 changed files with 394 additions and 0 deletions
--- a/main_back.c
+++ b/main_back.c
@@ -0,0 +1,140 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+#ifdef _WIN32
+    #include <winsock2.h>
+    #include <windows.h>
+#else
+    #include <unistd.h>
+    #include <sys/socket.h>
+    #include <netinet/in.h>
+    #include <arpa/inet.h>
+#endif
+
+#define PORT 8080
+#define BUFFER_SIZE 1024
+#define HTML_FILE "index.html"
+
+int main() {
+#ifdef _WIN32
+    WSADATA wsaData;
+    if (WSAStartup(MAKEWORD(2, 2), &wsaData) != 0) {
+        perror("WSAStartup failed");
+        exit(EXIT_FAILURE);
+    }
+    SetConsoleOutputCP(CP_UTF8);
+#endif
+
+    int server_fd, new_socket;
+    struct sockaddr_in address;
+    int addrlen = sizeof(address);
+    char buffer[BUFFER_SIZE] = {0};
+
+    printf("Hello World!\n");
+    // 创建socket文件描述符
+    if ((server_fd = socket(AF_INET, SOCK_STREAM, 0)) == 0) {
+        perror("socket failed");
+        exit(EXIT_FAILURE);
+    }
+
+    // 设置socket选项，允许地址重用
+    int opt = 1;
+    if (setsockopt(server_fd, SOL_SOCKET, SO_REUSEADDR,
+                   (const char *)&opt, sizeof(opt))) {
+        perror("setsockopt");
+        exit(EXIT_FAILURE);
+    }
+
+    // 配置服务器地址结构
+    address.sin_family = AF_INET;
+    address.sin_addr.s_addr = INADDR_ANY;
+    address.sin_port = htons(PORT);
+
+    // 绑定socket到指定地址和端口
+    if (bind(server_fd, (struct sockaddr *)&address, sizeof(address)) < 0) {
+        perror("bind failed");
+        exit(EXIT_FAILURE);
+    }
+
+    // 开始监听连接
+    if (listen(server_fd, 3) < 0) {
+        perror("listen");
+        exit(EXIT_FAILURE);
+    }
+
+    printf("HTTP服务器正在监听 %d 端口...\n", PORT);
+
+    while(1) {
+        if ((new_socket = accept(server_fd, (struct sockaddr *)&address,
+                                 &addrlen)) < 0) {
+            perror("accept");
+            exit(EXIT_FAILURE);
+        }
+
+        int valread = recv(new_socket, buffer, BUFFER_SIZE, 0);
+        printf("收到请求:\n%s\n", buffer);
+
+        FILE *html_file = fopen(HTML_FILE, "rb");
+        if (!html_file) {
+            const char *error_response =
+                    "HTTP/1.1 404 Not Found\r\n"
+                    "Content-Type: text/html; charset=utf-8\r\n"
+                    "Connection: close\r\n"
+                    "\r\n"
+                    "<html><body><h1>404 - 文件未找到</h1></body></html>";
+            send(new_socket, error_response, strlen(error_response), 0);
+            closesocket(new_socket);
+            continue;
+        }
+
+        fseek(html_file, 0, SEEK_END);
+        long file_size = ftell(html_file);
+        fseek(html_file, 0, SEEK_SET);
+
+        char *html_content = (char *)malloc(file_size + 1);
+        if (!html_content) {
+            fclose(html_file);
+            const char *error_response =
+                    "HTTP/1.1 500 Internal Server Error\r\n"
+                    "Content-Type: text/html; charset=utf-8\r\n"
+                    "Connection: close\r\n"
+                    "\r\n"
+                    "<html><body><h1>500 - 服务器错误</h1></body></html>";
+            send(new_socket, error_response, strlen(error_response), 0);
+            closesocket(new_socket);
+            continue;
+        }
+
+        fread(html_content, 1, file_size, html_file);
+        html_content[file_size] = '\0';
+        fclose(html_file);
+
+        char header[512];
+        sprintf(header,
+                "HTTP/1.1 200 OK\r\n"
+                "Content-Type: text/html; charset=utf-8\r\n"
+                "Content-Length: %ld\r\n"
+                "Connection: close\r\n"
+                "\r\n", file_size);
+
+        send(new_socket, header, strlen(header), 0);
+        send(new_socket, html_content, file_size, 0);
+
+        free(html_content);
+
+        printf("响应已发送\n");
+
+#ifdef _WIN32
+        closesocket(new_socket);
+#else
+        close(new_socket);
+#endif
+    }
+
+#ifdef _WIN32
+    WSACleanup();
+#endif
+
+    return 0;
+}