C++语言代码示例

#include
#include
#include
#include

#define MAX_URL_LEN 256

typedef struct {
    char *url;
    char *filename;
} url_info;

void parse_url(const char *url, url_info *info) {
    info->url = url;
    info->filename = (char*)malloc(strlen(url) + 5); // allocate 5 bytes for ".mp4"
}

void handle_request(struct MHD_Connection *connection, const char *url, const char *method, const char *version, const char *upload_data, size_t *upload_data_size, void *user_obj) {
    url_info *info = (url_info*)user_obj;
    if (strcmp(method, "GET") == 0) {
        parse_url(url, info);
        FILE *fp = fopen(info->filename, "wb");
        if (fp) {
            fseek(fp, 0, SEEK_END);
            size_t content_length = ftell(fp);
            fseek(fp, 0, SEEK_SET);
            char *content = (char*)malloc(content_length + 1); // allocate 1 byte for the null terminator
            if (content) {
                fread(content, 1, content_length, fp);
                content[content_length] = '\0'; // add null terminator
                printf("Content-Length: %zd\n", content_length);
                MHD_add_response_header(connection, "Content-Type", "video/mp4");
                MHD_add_response_header(connection, "Content-Length", (const char*)content_length);
                MHD_add_response_data(connection, content, content_length, NULL);
                free(content);
                fclose(fp);
            }
        }
        free(info->filename);
    }
}

int main() {
    struct MHD_Daemon *d;
    char *error;
    int port;
    struct MHD_Config *config;

    // 创建配置
    config = MHD_create_config_from_stdin(MHD_USE_LOCAL_FILE, NULL, NULL, NULL, NULL);
    config->log_callback = MHD_log_info;

    // 创建服务器
    d = MHD_create_daemon(MHD_USE_THREADING, port, proxy_host, proxy_port, MHD_DEFAULT_HTTPD, NULL, config, NULL);

    // 启动服务器
    if (d) {
        MHD_start_daemon(d);
        printf("Server started on port %d\n", port);
    } else {
        printf("Error: unable to start the daemon\n");
    }

    // 关闭配置和服务器
    MHD_config_free(config);
    MHD_stop_daemon(d);

    return 0;
}