static void * accept_request(void *arg)
{
int sock = (int)arg;
char buf[_SIZE_];
char method[_SIZE_/10];
char url[_SIZE_];
char path[_SIZE_];
memset(buf, '\0', sizeof(buf));
memset(buf, '\0', sizeof(method));
memset(buf, '\0', sizeof(url));
memset(buf, '\0', sizeof(path));
int cgi = 0;
int ret = -1;
char *query_string = NULL; // 数据参数
int len = sizeof(buf) / sizeof(buf[0]);
#ifdef _DEBUG_
do
{
// http 请求 报文 按行存储
ret = get_line(sock, buf, len);
printf("%s", buf);
fflush(stdout);
} while (ret > 0 && strcmp(buf, "\n") != 0);
#endif
ret = get_line(sock, buf, len); // 获取请求行
printf("line: %s\n", buf);
if (ret < 0)
{
echo_errno(sock);
return (void*)1;
}
// GET / HTTP/1.0
int i = 0; // method index
int j = 0; // buf index
// 请求行 包括 【方法(GET/POST)】【url】【HTTP/1.0(1.1)】
// 获取方法 GET/POST
while ((i < sizeof(method) - 1) && (j < sizeof(buf)) && (!isspace(buf[j])))
{
method[i] = buf[j];
++i;
++j;
}
method[i] = '\0';
// strcasecmp 忽略大小写的比较
if (strcasecmp(method, "GET") != 0 && strcasecmp(method, "POST") != 0)
{
echo_errno(sock);
return (void*)2;
}
// 跳过空格
while (j < sizeof(buf) && isspace(buf[j]))
{
j++;
}
i = 0;
// 获取url url是除了域名 端口号之后的 /。。。
while ((i < sizeof(url) - 1) && (j < sizeof(buf)) && (!isspace(buf[j])))
{
url[i++] = buf[j++];
}
url[i] = '\0';
//GET 所传递的参数 在URL中， 从server的QUERY_STRING 中获取
//POST 所传递的参数 在 数据包中 从server环境变量中CONTENT_LENGTH 环境变量中获取参数 数据的长度
if (strcasecmp(method, "POST") == 0)
{
cgi = 1;
}
if (strcasecmp(method, "GET") == 0)
{
query_string = url;
// 路径和数据参数 以？分隔 如 http:// baidu.com /s ? k = v
while (*query_string != '\0' && *query_string != '?')
{
++query_string;
}
if(*query_string == '?') // GET 带参数 需要进一步处理参数
{
cgi = 1;
*query_string++ = '\0';
}
}
// 没指定具体网页 加默认网页 和 根文件夹（安全考虑）
sprintf(path, "httpdoc%s", url);
if (path[strlen(path) - 1] == '/')
{
strcat(path, "index.html");
}
// method , query_string, cgi, path
struct stat st;
if (stat(path, &st) < 0) // 测文件在不在
{
echo_errno(sock);
return (void*)3;
}
else
{
if (S_ISDIR(st.st_mode))// 测是不是 文件夹
{
strcat(path, "/index.html");
}
else if( (st.st_mode & S_IXUSR) ||\
(st.st_mode & S_IXGRP) ||\
(st.st_mode & S_IXOTH))
// 查看cgi执行权限
{
cgi = 1;
}
else
{}
if (cgi)
{
exec_cgi(sock, method, path, query_string);
}
else
{
clear_header(sock); //
echo_www(sock, path, st.st_size);
}
}
}
int handler_msg(int sock) //浏览器请求处理函数
{
char buf[SIZE];
int count=get_line(sock,buf);
int ret=0;
char method[32];
char url[SIZE];
char *query_string=NULL;
int i=0;
int j=0;
int cgi=0;
//获取请求方法和请求路径
while(j<count)
{
if(isspace(buf[j]))
{
break;
}
method[i]=buf[j];
i++;
j++;
}
method[i]='\0';
while(isspace(buf[j])&&j<SIZE) //过滤空格
{
j++;
}
if(strcasecmp(method,"POST")&&strcasecmp(method,"GET"))
{
printf_log("method failed",FATAL);
echo_error(sock,405);
ret=5;
goto end;
}
if(strcasecmp(method,"POST")==0)
{
cgi=1;
}
i=0;
while(j<count)
{
if(isspace(buf[j]))
{
break;
}
if(buf[j]=='?')
{
query_string=&url[i];
query_string++;
url[i]='\0';
}
else
url[i]=buf[j];
j++;
i++;
}
url[i]='\0';
if(strcasecmp(method,"GET")==0&&query_string!=NULL)
{
cgi=1;
}
//找到请求的资源路径
char path[SIZE];
sprintf(path,"wwwroot%s",url);
if(path[strlen(path)-1]=='/') //判断浏览器请求的是不是目录
{
strcat(path,"index.html"); //如果请求的是目录，则就把该目录下的首页返回回去
}
struct stat st;
if(stat(path,&st)<0) //获取客户端请求的资源的相关属性
{
printf_log("stat path faile\n",FATAL);
echo_error(sock,404);
ret=6;
goto end;
}
else
{
if(S_ISDIR(st.st_mode))
{
strcat(path,"/index.html");
}
if(st.st_mode & (S_IXUSR | S_IXOTH | S_IXGRP))
{
cgi=1;
}
}
if(cgi) //请求的是可执行程序或者带参数用cgi程序处理
{
ret=excu_cgi(sock,method,path,query_string); //处理CGI模式的请求
}
else
{
clear_header(sock);
ret=echo_www(sock,path,st.st_size); //如果是GET方法，而且没有参数，请求的也不是可执行程序，则直接返回资源
}
end:
close(sock);
return ret;
}
static void * accept_request(void* arg)
{
int sock = (int)arg;
printf("%d\n",sock);
char buf[SIZE];
int ret = 0;
#ifdef _DEBUG_
do
{
ret = get_line(sock,buf,size);
printf("%s",buf);
fflush(stdout);
}while(ret > 0 && strcmp(buf,'\n'));
#endif
char method[SIZE / 10];
char url[SIZE];
char* query_string = NULL;
int cgi = 0;
char path[SIZE];
memset(method,'\0',sizeof(method));
memset(url,'\0',sizeof(url));
ret = get_line(sock,buf,sizeof(buf));
if(ret < 0)
{
echo_errno(sock,1);
return (void*)1;
}
printf("%s\n",buf);
//1 get method
//GET //xx//yy HTTP/1.1
int i = 0;
int j =0;
while(i< sizeof(method) - 1 && !isspace(buf[j]) && j < sizeof(buf) )
{
method[i]=buf[j];
++i;
++j;
}
method[i] = '\0';
//2 check method
if(strcasecmp(method,"GET")!=0 && strcasecmp(method,"POST") != 0)
{
echo_errno(sock,1);
return (void*)2;
}
//3 get url first step space
while(isspace(buf[j]))
{
++j;
}
i=0;
while(!isspace(buf[j])&& (i < sizeof(url)-1) && j < sizeof(buf))
{
url[i] = buf [j];
++i;
++j;
}
if(strcasecmp(method,"POST") == 0)
{
cgi = 1;
}
printf("method: %s,url_path :%s\n ",method,url);
if(strcasecmp(method,"GET") == 0)
{
query_string = url;
}
char *start = url;
while( *start != '\0')
{
if( *start == '?')
{
cgi = 1;
*start = '\0';
query_string = start+1;
break;
}
++start;
}
sprintf(path,"htdoc%s",url);
if(path[strlen(path)-1] == '/')
{
strcat(path,"index.html");
}
//
printf("path:%s\n",path);
printf("cgi:%d\n",cgi);
//method,query_string,cgi,path
struct stat st;
if(stat(path,&st) < 0)//default -> htdoc/index.html
{
printf("stat error\n");
echo_errno(sock,1);
return (void*)-3;
}
else
{
if(S_ISDIR(st.st_mode))
{
strcpy(path,"htdoc/index.html");
}
if(( st.st_mode & S_IXGRP)||\
( st.st_mode & S_IXGRP)||\
st.st_mode & S_IXOTH)
{
cgi = 1;
}
else
{}
//path cgi
if(cgi)
{
printf("cgi mode\n");
execut_cgi(sock,path,method,query_string);
}
else// 请求首页内容
{
clear_head(sock);
echo_www(sock,path,st.st_size);
}
}
close(sock); //no face link
return (void*) 0;
}
static void* accept_request(void *arg) //static
{
int sock = (int)arg;
char buf[SIZE];
int len = sizeof(buf)/sizeof(*buf);
char method[SIZE/10];
char url[SIZE];
char path[SIZE];
int ret = -1;
int i = 0;
int j = 0;
char *query_string = NULL; //aim at val(can shu)
int cgi = 0;
#ifdef _DEBUG_
// do
// {
// ret = get_line(sock, buf, len);
// printf("%s", buf);
// fflush(stdout);
// }while(ret > 0 && (strcmp(buf, "\n") != 0) );
#endif
memset(buf, '\0', sizeof(buf));
memset(method, '\0', sizeof(method));
memset(url, '\0', sizeof(url));
memset(path, '\0', sizeof(buf));
//Request Line
ret = get_line(sock, buf, len);
if(ret <= 0)
{
echo_errno(sock);
return (void*)1;
}
i = 0; //method index
j = 0; //buf index
while((i < (sizeof(method)/sizeof(*method) - 1)) && (j < sizeof(buf)/sizeof(*buf) - 1) && (!isspace(buf[j]) ) )
{
method[i] = buf[j];
++i;
++j;
}
method[i] = '\0';
if((strcasecmp(method, "GET") != 0) && (strcasecmp(method, "POST")) )
{
//echo_errno(sock);
return (void*)2;
}
//URL
while(isspace(buf[j])) //Remove Space
{
++j;
}
i = 0;
while( ( i < sizeof(url)/sizeof(*url)-1 ) && (j < sizeof(buf)/sizeof(*buf)) && (!isspace(buf[j])) )
{
url[i] = buf[j];
++i;
++j;
}
url[i] = '\0';
if( strcasecmp(method, "POST") == 0 )
{
cgi = 1;
sprintf(path, "%s", url+1);
}
if( strcasecmp(method, "GET") == 0 )
{
query_string = url;
while( *query_string != '\0' && *query_string != '?' )
{
query_string++;
}
if(*query_string == '?')
{
cgi = 1;
*query_string = '\0';
++query_string;
}
}
if( strcasecmp(method, "GET") == 0 )
{
sprintf(path, "htdoc%s", url);
if( path[strlen(path)-1] == '/' )
{
strcat(path, "index.html");
}
}
struct stat st;
if( stat(path, &st) < 0 )
{
//echo_errno(); //404
return (void*)3;
}
else //case : DIR
{
if( S_ISDIR(st.st_mode) )
{
strcat(path, "index.html");
}
else if( (st.st_mode & S_IXUSR) || (st.st_mode & S_IXGRP) || (st.st_mode & S_IXOTH) ) //bin(binary file)
{
cgi = 1;
}
else
{} //noting to do
}
printf("!@!#%@^ %s !@%@^%\n", buf);
if(cgi) // u+x file
{
printf("!!!!!!!!!!!!!!!!!!!!!!!!!!!!cgi\n");
exe_cgi(sock, method, path, query_string); //cgi mode
}
else //.jpg .html ...
{
printf("!!!!!!!!!!!!!!!!!!!!!!!!!!!!!www\n");
clear_header(sock); //! important!
echo_www(sock, path, st.st_size);
}
close(sock);
return 0;
}
