int control_process() {
char* buffer = NULL;
// 检查用户是否按下了按钮
if (cgiFormSubmitClicked("led1") == cgiFormSuccess) {
// 调用 led 1 控制代码
control_led(0);
} else if (cgiFormSubmitClicked("led2") == cgiFormSuccess) {
// 调用 led 2 控制代码
control_led(1);
} else if (cgiFormSubmitClicked("logout") == cgiFormSuccess) {
// 退出登录
session_destroy();
cgiHeaderLocation(cgiScriptName);
return 0;
}
// 输出 ContentType header
// 作为 CGI 程序必须输出这个 header，否则会导致 500 错误
fprintf(cgiOut, "Pragma: no-cache\n");
cgiHeaderContentType("text/html");
buffer = read_template(g_control_template);
if (buffer == NULL) {
fprintf(cgiOut, "Warning: Can't read template file: %s.<br />\n",
g_control_template);
return -1;
}
fprintf(cgiOut, "%s", buffer);
free(buffer);
return 0;
}
int cgiMain(void){
cgiFilePtr file;
int targetFile;
mode_t mode;
char name[128];
char nameForCheck[64];
char fileNameOnServer[64];
char contentType[1024];
char buffer[BufferLen];
char *tmpStr=NULL;
int size;
int got,t;
//取得html页面中file元素的值--文件在客户机上的路径名
if (cgiFormFileName("file", name, sizeof(name)) !=cgiFormSuccess) {
}
cgiFormFileSize("file", &size);
//取得文件类型
cgiFormFileContentType("file", contentType, sizeof(contentType));
//目前文件存在于系统临时文件夹中，通常为/tmp，通过该命令打开临时文件
if (cgiFormFileOpen("file", &file) != cgiFormSuccess) {
goto FAIL;
}
t=-1;
//从路径名解析出用户文件名
while(1){
tmpStr=strstr(name+t+1,"\\");
if(NULL==tmpStr)
tmpStr=strstr(name+t+1,"/");//if "\\" is not path separator, try "/"
if(NULL!=tmpStr)
t=(int)(tmpStr-name);
else
break;
}
strcpy(fileNameOnServer,name+t+1);
mode=S_IRWXU|S_IRGRP|S_IROTH;
//在当前目录下建立新的文件，第一个参数实际上是路径名，此处的含义是在cgi程序所在的目录（当前目录））建立新文件
targetFile=open(fileNameOnServer,O_RDWR|O_CREAT|O_TRUNC|O_APPEND,mode);
if(targetFile<0){
goto FAIL;
}
//从系统临时文件中读出文件内容，并放到刚创建的目标文件中
while (cgiFormFileRead(file, buffer, BufferLen, &got) ==cgiFormSuccess){
if(got>0)
write(targetFile,buffer,got);
}
cgiFormFileClose(file);
close(targetFile);
goto END;
FAIL:
cgiHeaderLocation("../upgrade_error.html");
system("rm /tmp/*");
return 1;
END:
//升级动作
if(cgiFormString("upfile1",nameForCheck,64)==cgiFormSuccess){
system("mv /app/www/cgi-bin/rtu /app/");
system("chmod 777 /app/rtu");
}else if(cgiFormString("upfile2",nameForCheck,64)==cgiFormSuccess){
system("");//预留，以后做好安装包再说
}
//以下为网页部分
printf("Content-type: text/html\r\n\r\n");
printf("<html>");
printf("<head>");
printf(" <meta charset=\"utf-8\" content=\"text/html\">");
printf(" <title>");
printf(" ctt-2000e动环设备");
printf(" </title>");
printf("</head>");
printf("<body style=\"background:#1782dd\">");
printf("<div id=\"all\" style=\"width:500px;margin:250px auto;color:#fff;font-size:30px;text-align:center;line-height:60px;\">");
printf(" 升级成功<br>系统将在 <i id=\"time\" style=\"font-size:45px;\">5</i> 秒后重启");
printf("</div>");
printf("<script type=\"text/javascript\">");
printf(" var id_of_time=setInterval(setTime,1000);");
printf(" setTimeout(close,5000);");
printf(" function setTime(){");
printf(" var lastTime=document.getElementById(\"time\");");
printf(" var number=lastTime.innerHTML;");
printf(" number=number-1;");
printf(" lastTime.innerHTML=number;");
printf(" }");
printf(" function close(){");
printf(" clearInterval(id_of_time);");
printf(" var all=document.getElementById(\"all\");");
printf(" all.innerHTML=\"系统重启中，请稍后点此重试连接\";");
printf(" all.onclick=function(){");
printf(" window.open(\"http://\"+location.hostname+\":\"+location.port,\"_self\",\"\");");
printf(" };");
printf(" }");
printf("</script>");
printf("</body>");
printf("</html>");
system("rm /tmp/*");
system("/sbin/reboot");
return 0;
}
/**
* 显示登录页面以及处理用户登录
*/
int login_process() {
char* username = NULL;
char* password = NULL;
char* buffer = NULL;
int field_buffer_size = 0;
REPLACEABLE_TAG_LIST tag_list = (REPLACEABLE_TAG_LIST) malloc(
sizeof(REPLACEABLE_TAG) * 2);
// 获取用户提交的用户名和密码，如果没有提交数据，则 username 和 password 为空字符串
cgiFormStringSpaceNeeded("username", &field_buffer_size);
username = (char*) malloc(field_buffer_size);
memset(username, 0, field_buffer_size);
cgiFormString("username", username, field_buffer_size);
cgiFormStringSpaceNeeded("password", &field_buffer_size);
password = (char*) malloc(field_buffer_size);
cgiFormString("password", password, field_buffer_size);
if (strcmp(username, g_login_username) == 0
&& strcmp(password, g_login_password) == 0) {
// 登录验证通过，设置 session 数据后重定向浏览器
session_set("USERNAME", g_login_username);
session_write_close();
cgiHeaderLocation(cgiScriptName);
free(username);
free(password);
return 0;
}
// 输出 ContentType header
// 作为 CGI 程序必须输出这个 header，否则会导致 500 错误
fprintf(cgiOut, "Pragma: no-cache\n");
cgiHeaderContentType("text/html");
// 显示登录页面
tag_list[0].tag = "{%ERROR_MESSAGE%}";
if (strlen(username) != 0 || strlen(password) != 0) {
tag_list[0].value = "您输入的用户名或者密码错误。";
} else {
tag_list[0].value = "";
}
tag_list[1].tag = "{%USERNAME%}";
tag_list[1].value = username;
buffer = read_template(g_login_template);
if (buffer == NULL) {
fprintf(cgiOut, "Warning: Can't read template file: %s.<br />\n",
g_login_template);
free(username);
free(password);
return -1;
}
parse_template(&buffer, tag_list, 2);
fprintf(cgiOut, "%s", buffer);
free(buffer);
free(username);
free(password);
// session_destroy();
return 0;
}
