ESP8266 WEB配网（部分解析）

https://blog.csdn.net/vr7jj/article/details/80316745

https://www.jianshu.com/p/760c01694245

 

RTOS web处理部分参考

while((client_sock = accept(listenfd, (struct sockaddr *)&remote_addr, (socklen_t *)&len)) >= 0) 
{ // recieveStatus 的含义 0. watting, 1. method get, 2. request URI get 3. finish recive 4. start send 5.send finished 
    int recieveStatus = 0; 
    bool cgiRequest = true; 
    char recieveBuffer; 
    char *httpMethod = (char *)zalloc(8); 
    int httpMethodLength = 0; 
    char *httpRequestUri = (char *)zalloc(64); 
    int httpRequestUriLength = 0; 
    char *httpStopFlag = (char *)zalloc(4); 
    int httpStopFlagLength = 0; httpMethod[0] = 0; 
    httpRequestUri[0] = 0; httpStopFlag[0] = 0; // loop for recieve data 
    for(;;) 
    { 
        read(clientSock, &recieveBuffer, 1); 
        if(recieveStatus == 0) 
        { // 获取请求方式 
            if(recieveBuffer != 32) 
            { 
                httpMethod[httpMethodLength] = recieveBuffer; 
                httpMethodLength ++; 
            } 
            else 
            { 
                httpMethod[httpMethodLength] = 0; 
                recieveStatus = 1; 
            } 
            continue; 
        } 
        if(recieveStatus == 1) 
        { // 获取URI 
            if(recieveBuffer != 32) 
            { 
                httpRequestUri[httpRequestUriLength] = recieveBuffer; 
                httpRequestUriLength ++; 
            } 
            else 
            { 
                httpRequestUri[httpRequestUriLength] = 0;
                recieveStatus = 2; 
            } 
            continue; 
        } 
        if(recieveStatus == 2) 
        { //判断header是否结束，header结束标记是一个空行 因此检测header最后4个字符是否是连续的\r\n\r\n即可 
            if(recieveBuffer == 10 || recieveBuffer == 13) 
            {     httpStopFlag[httpStopFlagLength] = recieveBuffer;
                httpStopFlagLength ++; httpStopFlag[httpStopFlagLength] = 0; 
                if(httpStopFlag[0] == 13 && httpStopFlag[1] == 10 && httpStopFlag[2] == 13 && httpStopFlag[3] == 10) 
                { 
                    recieveStatus == 3; break; 
                } 
                } 
                else 
                { 
                    httpStopFlagLength = 0; 
                    httpStopFlag[httpStopFlagLength] = 0; 
                } 
                continue; 
            } 
    } 
    // 向串口打印获取的信息 可以判断访问是否正确 
    printf("Method=%s SOCK=%d\n", httpMethod, clientSock); 
    printf("URI=%s SOCK=%d\n", httpRequestUri, clientSock); 
    printf("CGIRequestFlag=%d SOCK=%d\n", cgiRequest, clientSock);
    //输出response header 
    write(clientSock, "HTTP/1.1 200 OK\r\n", strlen("HTTP/1.1 200 OK\r\n")); 
    write(clientSock, "Server: SOTServer\r\n", strlen("Server: SOTServer\r\n"));
    write(clientSock, "Content-Type: text/plain; charset=utf-8\r\n", strlen("Content-Type: text/plain; charset=utf-8\r\n")); 
    write(clientSock, "\r\n", 2); //输出 respose body write(clientSock, "Hello World", strlen("Hello World")); //关闭链接 
    close(clientSock); 
}

https://github.com/cubicwork/SOTServer-demo/blob/master/user/SOTServer/task/SOTServer_worker.c

 

git 上面的参考

 

void SOTServer_worker(void *para) {

  // block accept
  SOTServer_blockingAcceptFlag = true;

  int32 *clientSockPointer = para;
  int32 clientSock = *clientSockPointer;

  printf("get a connection : %d\n", clientSock);

// 0 watting, 1. method get, 2. request URI get 3. finish recive 4. start send 5.send finished
  int recieveStatus = 0;
  bool cgiRequest = true;
  char recieveBuffer;

  char *httpMethod = (char *)zalloc(8);
  int httpMethodLength = 0;
  char *httpRequestUri = (char *)zalloc(64);
  int httpRequestUriLength = 0;
  char *httpStopFlag = (char *)zalloc(4);
  int httpStopFlagLength = 0;

  httpMethod[0] = 0;
  httpRequestUri[0] = 0;
  httpStopFlag[0] = 0;

  // loop for recieve data
  for(;;) {

    read(clientSock, &recieveBuffer, 1);

    if(recieveStatus == 0) {
    // get method
      if(recieveBuffer != 32) {
        httpMethod[httpMethodLength] = recieveBuffer;
        httpMethodLength ++;
      } else {
        httpMethod[httpMethodLength] = 0;
        recieveStatus = 1;
      }
      continue;
    }

    if(recieveStatus == 1) {
    // get url
      if(recieveBuffer != 32) {
        httpRequestUri[httpRequestUriLength] = recieveBuffer;
        httpRequestUriLength ++;
      } else {
        httpRequestUri[httpRequestUriLength] = 0;
        recieveStatus = 2;
        // if prefix of request uri match SOT_SERVER_CGI_PREFIX, set cgiRequest true.
        int charIndex = 0;
        for(charIndex; charIndex < strlen(SOT_SERVER_CGI_PREFIX); charIndex++) {
          if(httpRequestUri[charIndex] != SOT_SERVER_CGI_PREFIX[charIndex]) {
            cgiRequest = cgiRequest && false;
          }
        }
      }
      continue;
    }

    if(recieveStatus == 2) {
      if(recieveBuffer == 10 || recieveBuffer == 13) {

        httpStopFlag[httpStopFlagLength] = recieveBuffer;
        httpStopFlagLength ++;
        httpStopFlag[httpStopFlagLength] = 0;
        if(httpStopFlag[0] == 13 && httpStopFlag[1] == 10 &&  httpStopFlag[2] == 13 &&  httpStopFlag[3] == 10) {
          recieveStatus == 3;
          break;
        }
      } else {
        httpStopFlagLength = 0;
        httpStopFlag[httpStopFlagLength] = 0;
      }
      continue;
    }
  }
  // loop for send data
  printf("Method=%s SOCK=%d\n", httpMethod, clientSock);
  printf("URI=%s SOCK=%d\n", httpRequestUri, clientSock);
  printf("CGIRequestFlag=%d SOCK=%d\n", cgiRequest, clientSock);

  if(cgiRequest) {
    // handled by cgi handler
    SOTCGI_handler(httpRequestUri, clientSock);

  } else {
    // handled by static file handler
    // if request uri is a path, request default document.
    if(httpRequestUri[httpRequestUriLength - 1] == 47) {
      sprintf(httpRequestUri, "%s%s", httpRequestUri, SOT_SERVER_DEFAULT_DOCUMENT);
    }

    // open request file and try to get the content
    SOTROM_file *fileResource = SOTROM_fopen(httpRequestUri);
    if(fileResource->fileExsit) {
      // make 200 response
      write(clientSock, SOT_SERVER_HEADER_200, strlen(SOT_SERVER_HEADER_200));
      write(clientSock, SOT_SERVER_HEADER_SERVER, strlen(SOT_SERVER_HEADER_SERVER));
      write(clientSock, SOT_SERVER_HEADER_MIME, strlen(SOT_SERVER_HEADER_MIME));
      write(clientSock, fileResource->mime, strlen(fileResource->mime));
      write(clientSock, SOT_SERVER_HEADER_FINISH, strlen(SOT_SERVER_HEADER_FINISH));
      write(clientSock, SOT_SERVER_HEADER_FINISH, strlen(SOT_SERVER_HEADER_FINISH));

      char *fileBuffer = (char *)zalloc(65);
      while(SOTROM_fread(fileResource, (uint32 *)fileBuffer, 64)) {
        write(clientSock, fileBuffer, strlen(fileBuffer));
      }
      free(fileBuffer);
      free(fileResource);

    } else {
      // make 404 response
      write(clientSock, SOT_SERVER_HEADER_404, strlen(SOT_SERVER_HEADER_200));
      write(clientSock, SOT_SERVER_HEADER_SERVER, strlen(SOT_SERVER_HEADER_SERVER));
      write(clientSock, SOT_SERVER_HEADER_TEXT, strlen(SOT_SERVER_HEADER_TEXT));
      write(clientSock, SOT_SERVER_HEADER_FINISH, strlen(SOT_SERVER_HEADER_FINISH));
      write(clientSock, "404 Not Found", 13);
    }
  }

  free(httpMethod);
  free(httpRequestUri);

  // stop blocking accept
  for( ;; ) {
    close(clientSock);
    vTaskDelay(50 / portTICK_RATE_MS);
    SOTServer_blockingAcceptFlag = false;
    vTaskDelete(NULL);
  }
}