/**
* 为当前访问者启用 session
*
* @param const char* datadir 用于保存 session 数据文件的目录
*
* @return int 成功返回0，失败返回非0值
*/
int session_start(const char* datadir) {
char cookie_session_id[34];
int result;
if (g_session_data != NULL) {
fprintf(cgiOut, "Warning: session_start() calls again.<br />\n");
return -1;
}
// 初始化 session_data
sess_init(datadir);
// 根据 cookie 状态确定是创建新 session 还是载入现有的 session
result = cgiCookieString("CWEB_SESSION_ID", cookie_session_id, 33);
#ifdef DEBUG
fprintf(cgiOut, "cgiCookieString() result: %u\n", result);
fprintf(cgiOut, "cookie_session_id: %s\n", cookie_session_id);
#endif
if (result != cgiFormSuccess) {
// 没有找到有效的 cookie session_id，创建一个新 session
result = sess_create();
} else {
result = sess_load(cookie_session_id, datadir);
}
sess_gc(); //处理过期session
return result;
}
int check_password()
{
char username[30];
char password[30];
memset(username,0,sizeof(username));
memset(password,0,sizeof(password));
if(cgiFormNotFound == cgiFormStringNoNewlines("j_password", password, 30))
{
//fprintf(cgiOut, "<p> cgiFormNotFound</p>\n");
cgiCookieString("admin", password, sizeof(password));
memcpy(username,"admin",5);
//fprintf(cgiOut, "<p> ==11%s==%s----%s</p>\n",cgiRemoteAddr,username,password);
}
else
{
cgiFormStringNoNewlines("j_username", username, 30);
cgiFormStringNoNewlines("j_password", password, 30);
}
//fprintf(cgiOut, "<p> %s----%s</p>\n",username,password);
if(!memcmp(username,"admin",5) && !memcmp(password,"asdf1~",6))
{
return 1;
}
else
{
fprintf(cgiOut, "<p> 用户未登录或密码错误,请返回重新输入!</p>\n");
fprintf(cgiOut, " <input type=\"button\" name=\"rest\" onclick=\"javascript:window.location.href='/index.html'\" value=\"返回\" />\n");
fprintf(cgiOut, "</center>\n</body>\n");
fprintf(cgiOut, "</html>\n");
return 0;
}
}
void Cookies()
{
char **array, **arrayStep;
char cname[1024], cvalue[1024];
fprintf(cgiOut, "Cookies Submitted On This Call, With Values (Many Browsers NEVER Submit Cookies):<p>\n");
if (cgiCookies(&array) != cgiFormSuccess) {
return;
}
arrayStep = array;
fprintf(cgiOut, "<table border=1>\n");
fprintf(cgiOut, "<tr><th>Cookie<th>Value</tr>\n");
while (*arrayStep) {
char value[1024];
fprintf(cgiOut, "<tr>");
fprintf(cgiOut, "<td>");
cgiHtmlEscape(*arrayStep);
fprintf(cgiOut, "<td>");
cgiCookieString(*arrayStep, value, sizeof(value));
cgiHtmlEscape(value);
fprintf(cgiOut, "\n");
arrayStep++;
}
fprintf(cgiOut, "</table>\n");
cgiFormString("cname", cname, sizeof(cname));
cgiFormString("cvalue", cvalue, sizeof(cvalue));
if (strlen(cname)) {
fprintf(cgiOut, "New Cookie Set On This Call:<p>\n");
fprintf(cgiOut, "Name: ");
cgiHtmlEscape(cname);
fprintf(cgiOut, "Value: ");
cgiHtmlEscape(cvalue);
fprintf(cgiOut, "<p>\n");
fprintf(cgiOut, "If your browser accepts cookies (many do not), this new cookie should appear in the above list the next time the form is submitted.<p>\n");
}
cgiStringArrayFree(array);
}
