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/*
* users.cpp: User specific rights for the LIVE plugin.
*
* See the README file for copyright information and how to reach the author.
*/
#include "users.h"
#include "tools.h"
#include "setup.h"
#include <sstream>
namespace vdrlive {
std::string cUsers::logged_in_user;
// -- cUser -----------------------------------------------------------------
cUser::cUser(int ID, const std::string& Name, const std::string& Password)
: m_ID(ID), m_Name(Name)
{
SetPassword(Password);
}
void cUser::SetPassword(const std::string& Password)
{
std::stringstream passwordStr;
passwordStr << Password.size() << "|" << MD5Hash(Password);
m_PasswordMD5 = passwordStr.str();
}
int cUser::GetPasswordLength() const
{
// format is <length>:<md5-hash of password>
cSplit parts( m_PasswordMD5, '|' );
return parts.empty() ? 0:parse_int<int>( *parts.begin() );
}
std::string const cUser::GetMD5HashPassword() const
{
// format is <length>:<md5-hash of password>
cSplit<std::string> parts(m_PasswordMD5, '|');
return (parts.size() > 1) ? *(++parts.begin()) : std::string();
}
bool cUser::Parse(const char *s)
{
char *line;
char *pos;
char *pos_next;
int parameter = 1;
int valuelen;
#define MAXVALUELEN (10 * MaxFileName)
char value[MAXVALUELEN];
pos = line = strdup(s);
pos_next = pos + strlen(pos);
if (*pos_next == '\n') *pos_next = 0;
while (*pos) {
while (*pos == ' ') pos++;
if (*pos) {
if (*pos != ':') {
pos_next = strchr(pos, ':');
if (!pos_next)
pos_next = pos + strlen(pos);
valuelen = pos_next - pos + 1;
if (valuelen > MAXVALUELEN)
{
esyslog("live: entry '%s' is too long. Will be truncated!", pos);
valuelen = MAXVALUELEN;
}
strn0cpy(value, pos, valuelen);
pos = pos_next;
switch (parameter) {
case 1: m_ID = parse_int<int>(value);
break;
case 2: m_Name = value;
break;
case 3: m_PasswordMD5 = value;
break;
case 4:
m_Userrights = parse_int<int>(value);
break;
default:
break;
} //switch
}
parameter++;
}
if (*pos) pos++;
} //while
free(line);
return (parameter >= 4) ? true : false;
}
const char *cUser::ToText(void)
{
char* buffer = NULL;
if (asprintf(&buffer, "%d:%s:%s:%d", m_ID, m_Name.c_str(), m_PasswordMD5.c_str(), m_Userrights) < 0)
return NULL;
return buffer;
}
bool cUser::Save(FILE *f)
{
return fprintf(f, "%s\n", ToText()) > 0;
}
bool cUser::HasRightTo(eUserRights right)
{
return ((m_Userrights & (1 << (right-1))) != 0);
}
bool cUser::CurrentUserHasRightTo(eUserRights right)
{
if (!LiveSetup().UseAuth()) return true;
cUser* user = cUsers::GetByUserName(cUsers::logged_in_user);
return (cUsers::logged_in_user == LiveSetup().GetAdminLogin() || (user && (user->m_Userrights & (1 << (right-1))) != 0));
}
void cUser::SetRight(eUserRights right)
{
isyslog("live: set right '%d' in '%d'", right, m_Userrights);
m_Userrights |= (1 << (right-1));
isyslog("live: now rights are '%d'", m_Userrights);
}
bool cUsers::Delete(const std::string& Name)
{
cUser* user = Users.First();
while (user)
{
if (user->Name() == Name)
{
Users.Del(user);
Users.Save();
return true;
}
user = Users.Next(user);
}
return false;
}
cUser* cUsers::GetByUserId(const std::string& Id)
{
cUser* user = Users.First();
while (user)
{
if (user->Id() == atoi(Id.c_str()))
return user;
user = Users.Next(user);
}
return NULL;
}
cUser* cUsers::GetByUserName(const std::string& Name)
{
cUser* user = Users.First();
while (user)
{
if (user->Name() == Name)
return user;
user = Users.Next(user);
}
return NULL;
}
int cUsers::GetNewId()
{
int iMaxId = -1;
cUser* user = Users.First();
while (user)
{
if (iMaxId < user->Id())
iMaxId = user->Id();
user = Users.Next(user);
}
return iMaxId + 1;
}
bool cUsers::ValidUserLogin(const std::string& login, const std::string& password)
{
cUser* user = GetByUserName(login);
if (user && MD5Hash(password) == user->GetMD5HashPassword())
return true;
return false;
}
bool cUsers::ValidLogin(const std::string& login, const std::string& password)
{
return ((login == LiveSetup().GetAdminLogin() && MD5Hash(password) == LiveSetup().GetMD5HashAdminPassword()) ||
ValidUserLogin(login, password));
}
}
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