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8.23 http server 项目

2024-07-21 01:11:26   220人阅读

xinetd：负责http底层的传输
第一步:
在/etc/xinetd.d下创建  micro_httpd文件
sudo vim micro_httpd
  2. service micro_httpd
  3. {
  4.     socket_type = stream
  5.     protocol    = tcp
  6.     wait        = no
  7.     user        = liuwei
  8.     server      = /home/liuwei/http_protect/micro_httpd
  9.     server_args = /home/liuwei/www
  10.     disable     = no
  11.     flags       = IPv4
  12. }
第二步：sudo  vim  /etc/services
在文件的最下面添加两句话
micro_httpd 8080/tcp
micro_httpd 8080/udp        #Micro HTTP  SERVER

第三步 ： 重启xinetd

sudo  /etc/init.d/xinetd restart

参考资料：
1.sudo aptitude install xinetd命令安装xinetd工具

2.sudo vi /etc/xinetd.d/micro_httpd创建micro_httpd文件并打开写入如下内容：
service micro_httpd
{
socket_type     = stream
protocol        = tcp
wait            = no
user            = whoami
server          = /home/whoami/http-project/micro_httpd
server_args     = /home/whoami/mh_html
disable         = no
flags           = IPv4
}
【特别注意】:文件名是micro_httpd而不是micro_httpd.conf
‘=’左边是tab，右边是一个空格

3.sudo vi /etc/services打开该文件，加入如下两行：
micro_httpd 2222/tcp #Micro HTTP server
micro_httpd 2222/udp #Micro HTTp server

4.sudo service xinetd restart重启xinetd
  (以前是使用sudo /etc/init.d/xinetd restart, 是否互通待验证)

6.使用http://localhost:2222访问/home/whoami/mh_html下面的内容


项目实战：

改变工作目录  chdir
    chdir("home/liuwei/demo");
    然后可以fopen 创建


获取当前时间


获取文件属性
linux命令：stat   123.c






  1. #include <stdio.h>
  2. #include <stdlib.h>
  3. #include <string.h>
  4. #include <time.h>
  5. #include <sys/types.h>
  6. #include <dirent.h>
  7. #include <sys/stat.h>
  8. #include <unistd.h>
  10. void sys_err( char * str)
  11. {
  12.         printf( "%s\n" , str);
  13.         exit(-1);
  14. }
  15. void show_dir(char * pathname , char * p)
  16. {
  17.         struct dirent * ptr;
  18.         struct stat buf;
  19.         DIR * dir = opendir(pathname);
  20.         if( dir == NULL)
  21.                 sys_err("open dir error!");
  22.         printf("<style>a{color:black;}.dir{color:red;font-size:25px;text-decoration:none}span{color:purple}td{width:25%%;text-align:left;}tr{height:35px}</style><table>");
  23.         while( (ptr = readdir(dir)) != NULL )
  24.         {
  25.                 if(ptr->d_name[0] == ‘.‘)
  26.                         continue;
  28.                 char tmp[1024] , css[10] = "dir";
  29.                 strcpy(tmp , pathname);
  30.                 strcat(tmp , "/");
  31.                 strcat(tmp , ptr->d_name);
  32.                 stat(tmp, &buf);
  33.                 if(strcmp( p , "/") == 0)
  34.                         p[0] = ‘\0‘;
  35.                 if(S_ISDIR(buf.st_mode) == 0)
  36.                         css[0] = ‘\0‘;
  38.                 printf("<tr><td><a class=‘%s‘ href=http://www.mamicode.com/‘%s/%s‘>%s%s%d",css,p,ptr->d_name,ptr->d_name,ctime(&buf.st_atime),(int)buf.st_size );
  39.         }
  40.         printf("</table><br/><hr/><span>apache_httpd</span>");
  41.         fflush(stdout);
  42.         exit(0);
  43. }
  44. void show_file( char * buf)
  45. {
  46.         FILE *fp;
  47.         char * p = NULL , ch;
  48.         char pathname[50] = "/home/liuwei/www";
  49.         if((p = strtok( buf , " ")) && (p = strtok(NULL , " ")))
  50.         {
  51.                 struct stat buf;
  52.                 if( strcmp( p , "/") == 0)
  53.                         show_dir(pathname , p);
  55.                 strcat(pathname , p);
  56.                 stat(pathname, &buf);
  57.                 if(S_ISDIR(buf.st_mode))
  58.                         show_dir(pathname , p);
  60.                 fp = fopen( pathname , "r");
  61.                 if(fp == NULL)
  62.                         printf("404 not found\n");
  63.                 else
  64.                 {
  65.                         //printf("HTTP/1.1 200 OK\r\n");
  66.                         //printf("Content-Language:zh-ch\r\n");
  67.                         //printf("Content-Type:text/html;charset=utf-8\r\n\r\n");
  68.                         while(fread(&ch, sizeof(ch),1,fp) != 0 )
  69.                                 fwrite(&ch,sizeof(ch),1,stdout);
  70.                 }
  71.         }
  72.         fflush(stdout);
  73.         fclose( fp );
  74. }
  76. void write_log( void )
  77. {
  78.         char buf[8192];
  79.         time_t t ;
  80.         int i = 1;
  81.         FILE * fp = fopen("log.txt","a");
  82.         if( fp == NULL )
  83.                 sys_err("fopen log.txt error");
  85.         time(&t);
  86.         fputs( ctime(&t) , fp);
  87.         fputs( "-----------------------\n" , fp);
  89.         while(( fgets(buf,sizeof(buf),stdin) != NULL ) && strlen(buf) != 2)
  90.         {
  91.                 fputs( buf , fp );
  92.                 if(i++ == 1)
  93.                         show_file( buf );
  94.         }
  96.         fprintf( fp , "\n");
  97.         fclose( fp );
  98. }
  99. int main( int argc , char * argv[])
  100. {
  101.         if(chdir("/home/liuwei/http-project/"))
  102.                 sys_err("change dir error");
  103.         write_log();
  104.         return 0;
  105. }

Makefile:
  1. all:clean httpd
  2.         @echo  "123456"
  3.         sudo /etc/init.d/xinetd restart
  5. httpd:
  6.         gcc liuwei_httpd.c  -o liuwei_httpd
  8. clean:
  9.         rm -rf liuwei_httpd log.txt




         






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8.23 http server 项目


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