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);
}
}
}
void* accept_request(void* arg)
{
pthread_detach(pthread_self());
int sock = (int)arg;
char buf[_SIZE_];
char method[_SIZE_];
char url[_SIZE_];
char path[_SIZE_];
memset(buf, '\0', sizeof(buf));
memset(method, '\0', sizeof(method));
memset(url, '\0', sizeof(url));
memset(path, '\0', sizeof(path));
int cgi = 0;
int ret = -1;
char* query_string = NULL;
#ifdef _DEBUG_
do{
ret = get_line(sock, buf, sizeof(buf));
printf("%s", buf);
fflush(stdout);
} while((ret > 0) && (strcmp(buf, "\n") != 0));
#endif
ret = get_line(sock, buf, sizeof(buf));
if(ret < 0)
{
echo_errno(sock);
return (void *)1;
}
//GET /HTTP/1.1
int i = 0; // method index
int j = 0; // buf index
while( (i < sizeof(method)-1) && (j < sizeof(buf)) && (!isspace(buf[j])))
{
method[i] = buf[j];
i++, j++;
}
method[i] = '\0';
while( isspace(buf[j]) )
{
j++;
}
if(strcasecmp(method, "GET") != 0 && strcasecmp(method, "POST") != 0)
{
echo_errno(sock);
return (void*)2;
}
if(strcasecmp(method, "POST") == 0)
{
cgi = 1;
}
i = 0; // url index
while( (i<sizeof(url)-1) && (j < sizeof(buf)) && (!isspace(buf[j])))
{
url[i] = buf[j];
i++, j++;
}
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++;
}
}
// / /aa/bb/cc
sprintf(path, "htdoc%s", url); // htdoc/
if(path[strlen(path) - 1] == '/')
{
strcat(path, "index.html");
}
printf("method: %s\n", method);
printf("path: %s\n", path);
printf("query_string: %s\n", query_string);
struct stat st;
if(stat(path, &st) < 0)
{
echo_errno(sock);
return (void*)3;
}
else
{
if(S_ISDIR(st.st_mode))
{
strcpy(path, "htdoc/index.html");
}
else if( (st.st_mode & S_IXUSR) || (st.st_mode & S_IXGRP) || (st.st_mode & S_IXOTH) )
{
cgi = 1;
}
else
{}
if(cgi)
{
exec_cgi(sock, path, method, query_string);
}
else
{
clear_header(sock);
echo_html(sock, path, st.st_size);
}
}
close(sock);
return (void*)0;
}
