int single_login(single_login_t *sl, single_login_func_t cb, char *ip,
int port, char *user, char *pwd, void *param)
{
if (sl == NULL || ip == NULL || port <= 0 || port >= 65535)
return -1;
int loginid = -1;
char ip_port[32] = "";
single_login_info_t *node;
snprintf(ip_port, sizeof(ip_port), "%s:%d", ip, port);
single_login_func_t login_func =
(cb == NULL) ? default_login_func : cb;
pthread_mutex_lock(&sl->mtx);
/* lookup ip:port, if exist, return the loginid directly */
if (dlist_entry(sl->list, cmp_ipport, (void *)ip_port,
(void **)&node) == 0) {
loginid = node->loginid;
node->user_num++;
pthread_mutex_unlock(&sl->mtx);
return loginid;
}
/* login */
loginid = login_func(ip, port, user, pwd, param);
if (loginid == -1) {
pthread_mutex_unlock(&sl->mtx);
return -1;
}
node = calloc(1, sizeof(single_login_info_t));
if (node == NULL) {
close(loginid);
pthread_mutex_unlock(&sl->mtx);
return -1;
}
snprintf(node->ip_port, sizeof(node->ip_port), "%s:%d", ip, port);
node->loginid = loginid;
node->user_num = 1;
node->param = param;
if (dlist_add(&sl->list, (void *)node) == -1) {
close(loginid);
free(node);
pthread_mutex_unlock(&sl->mtx);
return -1;
}
pthread_mutex_unlock(&sl->mtx);
return loginid;
}
void login_func(int newsockfd,char * log)
{
char login[256];
char password[256];
int n;
char id[256];
xmlDoc *doc = NULL;
xmlNode *root_element = NULL;
const char *Filename = "users.xml";
doc = xmlReadFile(Filename, NULL, 0);
n = write(newsockfd,"Hello, print you login and password\n",36);
bzero(login,256);
bzero(password,256);
n = read( newsockfd,login,255 );
if (n < 0)
{
perror("ERROR reading from socket");
exit(1);
}
n=write(newsockfd,"OK",2);
n = read( newsockfd,password,255 );
if (n < 0)
{
perror("ERROR reading from socket");
exit(1);
}
if (doc == NULL)
{
printf("error: could not parse file %s\n", Filename);
}
else
{
if(!strncmp(login,"exit",4))
exit(1);
root_element = xmlDocGetRootElement(doc);
bzero(id,256);
login[strlen(login)-1] = 0;
//login[strlen(login)-1] = 0;
//password[strlen(password)-1] = 0;
password[strlen(password)-1] = 0;
search_user(root_element,login,password,id);
if(id[0] == 0)
{
printf("Invalid login --%s-- and password --%s-- \n Retry write you login and password\n",login,password);
write(newsockfd,"OK",5);
login_func(newsockfd,login);
}
else
{
write(newsockfd,"next",5);
search_new_topics(login,newsockfd);
root_element = xmlDocGetRootElement(doc);
on_off_user(root_element,login,1);
xmlSaveFile(Filename,doc);
strcpy(log,login);
write(newsockfd,"next",5);
}
xmlFreeDoc(doc);
}
xmlCleanupParser();
return;
}
void start_work(int newsockfd)
{
int n;
xmlDoc *doc = NULL;
xmlNode *root_element = NULL;
const char *TopicFilename = "topics.xml";
const char *UserFilename = "users.xml";
char buffer[256];
char id[6];
char login[100];
bzero(login,100);
login_func(newsockfd,login);
strcpy(usersthr.login[usersthr.count],login);
usersthr.count++;
bzero(buffer,256);
strcpy(buffer,"next\n");
n=write(newsockfd,buffer,7);
while(1)
{
bzero(buffer,256);
strcpy(buffer,"next\n");
n=write(newsockfd,buffer,7);
//printf("next\n");
bzero(buffer,256);
n = read( newsockfd,buffer,255 );
//printf("Buffer :%s\n",buffer);
if (n < 0)
{
perror("ERROR reading from socket");
exit(1);
}
if(!strncmp(buffer,"topics",6))
{
print_topic(buffer,newsockfd);
//n = write(newsockfd,buffer,255);
}
if(!strncmp(buffer,"online",6))
{
doc = xmlReadFile(UserFilename, NULL, 0);
if (doc == NULL)
{
printf("error: could not parse file %s\n", UserFilename);
n = write(newsockfd,"Error\n",6);
}
else
{
root_element = xmlDocGetRootElement(doc);
search_online_user(root_element,newsockfd);
xmlFreeDoc(doc);
}
xmlCleanupParser();
}
if(!strncmp(buffer,"show",4))
{
bzero(id,6);
for(n=5;n<10;n++)
id[n-5]=buffer[n];
doc = xmlReadFile(TopicFilename, NULL, 0);
if (doc == NULL)
{
printf("error: could not parse file %s\n", TopicFilename);
n = write(newsockfd,"Error\n",6);
}
else
{
root_element = xmlDocGetRootElement(doc);
fnp_post_by_id(root_element,id,newsockfd);
xmlFreeDoc(doc);
}
xmlCleanupParser();
doc = xmlReadFile(UserFilename, NULL, 0);
if (doc == NULL)
{
printf("error: could not parse file %s\n", UserFilename);
n = write(newsockfd,"Error\n",6);
}
else
{
root_element = xmlDocGetRootElement(doc);
add_see_topic(root_element,login,id);
xmlSaveFile(UserFilename,doc);
xmlFreeDoc(doc);
}
xmlCleanupParser();
}
if(!strncmp(buffer,"exit",4))
{
bzero(buffer,256);
strncpy(buffer,"exit\n",6);
n = write(newsockfd,buffer,255);
doc = xmlReadFile(UserFilename, NULL, 0);
if (doc == NULL)
{
printf("error: could not parse file %s\n", UserFilename);
n = write(newsockfd,"Error\n",6);
}
else
{
root_element = xmlDocGetRootElement(doc);
on_off_user(root_element,login,0);
xmlSaveFile(UserFilename,doc);
xmlFreeDoc(doc);
}
xmlCleanupParser();
return;
}
if(!strncmp(buffer,"add",3))
{
doc = xmlReadFile(TopicFilename, NULL, 0);
if (doc == NULL)
{
printf("error: could not parse file %s\n", TopicFilename);
n = write(newsockfd,"Error\n",6);
}
else
{
root_element = xmlDocGetRootElement(doc);
add_new_topic(root_element,newsockfd,login);
xmlSaveFile(TopicFilename,doc);
xmlFreeDoc(doc);
}
xmlCleanupParser();
}
else
{
n=write(newsockfd,"OK",2);
}
/* Write a response to the client */
if (n < 0)
{
perror("ERROR writing to socket");
exit(1);
}
}
}
