<?php
require_once dirname(__FILE__)."/accesscheck.php";

mt_srand((double)microtime()*1000000);
$randval = mt_rand();

if (empty($id) && isset($_GET['id'])) {
  $id = sprintf('%d',$_GET["id"]);
} elseif (!isset($id)) {
  $id = 0;
}

if (!$id && $_GET["page"] != "import1") {
  Fatal_Error("Invalid call");
  exit;
}
require_once dirname(__FILE__)."/date.php";
$date = new Date();

## Check if input is complete
$allthere = 1;
$subscribepagedata = PageData($id);
if (isset($subscribepagedata['language_file']) && is_file(dirname(__FILE__).'/../texts/'.$subscribepagedata['language_file'])) {
  @include dirname(__FILE__).'/../texts/'.$subscribepagedata['language_file'];
}
$required = array();   # id's of missing attribbutes
if (sizeof($subscribepagedata)) {
  $attributes = explode('+',$subscribepagedata["attributes"]);
  foreach ($attributes as $attribute) {
    if (isset($subscribepagedata[sprintf('attribute%03d',$attribute)]) && $subscribepagedata[sprintf('attribute%03d',$attribute)]) {
      list($dummy,$dummy2,$dummy3,$req) = explode('###',$subscribepagedata[sprintf('attribute%03d',$attribute)]);
      if ($req) {
        array_push($required,$attribute);
      }
    }
  }
} else {
  $req = Sql_Query(sprintf('select * from %s',$GLOBALS['tables']['attribute']));
  while ($row = Sql_Fetch_Array($req)) {
    if ($row['required']) {
      array_push($required,$row['id']);
    }
  }
}

if (sizeof($required)) {
  $required_ids = join(',',$required);
  # check if all required attributes have been entered;
  if ($required_ids) {
    $res = Sql_Query("select * from {$GLOBALS["tables"]["attribute"]} where id in ($required_ids)");
    $allthere = 1;
    $missing = '';
    while ($row = Sql_Fetch_Array($res)) {
      $fieldname = "attribute" .$row["id"];
      $thisonemissing = 0;
      if ($row["type"] != "hidden") {
        $thisonemissing = empty($_POST[$fieldname]);
        if ($thisonemissing)
          $missing .= $row["name"] .", ";
        $allthere = $allthere && !$thisonemissing;
      }
    }
    $missing = substr($missing,0,-2);
    if ($allthere) {
      $missing = '';
    }
  }
}

#
# If need to check for double entry of email address
#
if (isset($subscribepagedata['emaildoubleentry']) && $subscribepagedata['emaildoubleentry'] == 'yes')
{
  if (!(isset($_POST['email']) && isset($_POST['emailconfirm']) && $_POST['email'] == $_POST['emailconfirm']))
  {
    $allthere=0;
    $missing = $GLOBALS["strEmailsNoMatch"];
  }
}

// anti spambot check
if (!empty($_POST['VerificationCodeX'])) {
  if (NOTIFY_SPAM) {
    $msg = $GLOBALS['I18N']->get('spamblockemailintro');
    foreach ($_REQUEST as $key => $val) {
      $msg .= "\n".'Form field: '.htmlentities($key)."\n".'================='."\nSubmitted value: ".htmlentities($val)."\n".'=============='."\n\n";
    }
    sendAdminCopy("phplist Spam blocked","\n".$msg);
  }
  unset($msg);
  return;
}

if (!isset($_POST['passwordreq'])) $_POST['passwordreq'] = '';
if (!isset($_POST['password'])) $_POST['password'] = '';

if ($allthere && ASKFORPASSWORD && ($_POST["passwordreq"] || $_POST["password"])) {
  if (empty($_POST["password"]) || $_POST["password"] != $_POST["password_check"]) {
    $allthere = 0;
    $missing = $GLOBALS["strPasswordsNoMatch"];
  }
  if ($_POST["email"]) {
    $curpwd = Sql_Fetch_Row_Query(sprintf('select password from %s where email = "%s"',
      $GLOBALS["tables"]["user"],$_POST["email"]));

    if ($curpwd[0] && $_POST["password"] != $curpwd[0]) {
      $missing = $GLOBALS["strInvalidPassword"];
    }
  }
}

if (isset($_POST["email"]) && $check_for_host) {
  list($username,$domaincheck) = split('@',$_POST["email"]);
#  $mxhosts = array();
#  $validhost = getmxrr ($domaincheck,$mxhosts);
  $validhost = checkdnsrr($domaincheck, "MX") || checkdnsrr($domaincheck, "A");
} else {
  $validhost = 1;
}

$listsok = ((!ALLOW_NON_LIST_SUBSCRIBE && isset($_POST["list"]) && is_array($_POST["list"])) || ALLOW_NON_LIST_SUBSCRIBE);

if (isset($_POST["subscribe"]) && is_email($_POST["email"]) && $listsok
   && $allthere && $validhost) {
  $history_entry = '';
  # make sure to save the correct data
  if ($subscribepagedata["htmlchoice"] == "checkfortext" && !$textemail) {
    $htmlemail = 1;
  } else {
    $htmlemail = isset($_POST["htmlemail"]) && $_POST["htmlemail"];
  }

  # now check whether this user already exists.
  $email = $_POST["email"];
  if (preg_match("/(.*)\n/U",$email,$regs)) {
    $email = $regs[1];
  }
  $result = Sql_query("select * from {$GLOBALS["tables"]["user"]} where email = \"$email\"");#"
  if (isset($_POST['rssfrequency'])) {
    $rssfrequency = validateRssFrequency($_POST['rssfrequency']);
  } else {
    $rssfrequency = '';
  }

  if (!Sql_affected_rows()) {
    # they do not exist, so add them
    $query = sprintf('insert into %s (email,entered,uniqid,confirmed,
      htmlemail,subscribepage,rssfrequency) values("%s",now(),"%s",0,%d,%d,"%s")',
    $GLOBALS["tables"]["user"],addslashes($email),getUniqid(),$htmlemail,$id,
    $rssfrequency);
    $result = Sql_query($query);
    $userid = Sql_Insert_Id();
    addSubscriberStatistics('total users',1);
  } else {
    # they do exist, so update the existing record
    # read the current values to compare changes
    $old_data = Sql_fetch_array($result);
    if (ASKFORPASSWORD && $old_data["password"]) {
      if (ENCRYPTPASSWORD) {
        $canlogin = md5($_POST["password"]) == $old_data["password"];
      } else {
        $canlogin = $_POST["password"] == $old_data["password"];
      }
      if (!$canlogin) {
        $msg = $GLOBALS["strUserExists"];
        $msg .= '<p>'.$GLOBALS["strUserExistsExplanationStart"].
          sprintf('<a href="%s&email=%s">%s</a>',getConfig("preferencesurl"),$email,
          $GLOBALS["strUserExistsExplanationLink"]).
          $GLOBALS["strUserExistsExplanationEnd"];
        return;
      }
    }

    $userid = $old_data["id"];
    $old_data = array_merge($old_data,getUserAttributeValues('',$userid));
    $history_entry = 'http://'.getConfig("website").$GLOBALS["adminpages"].'/?page=user&id='.$userid."\n\n";

    $query = sprintf('update %s set email = "%s",htmlemail = %d,subscribepage = %d,rssfrequency = "%s" where id = %d',$GLOBALS["tables"]["user"],addslashes($email),$htmlemail,$id,$rssfrequency,$userid);
    $result = Sql_query($query);
  }

  if (ASKFORPASSWORD && $_POST["password"]) {
    if (ENCRYPTPASSWORD) {
      $newpassword = sprintf('%s',md5($_POST["password"]));
     } else {
      $newpassword = sprintf('%s',$_POST["password"]);
    }
     # see whether is has changed
    $curpwd = Sql_Fetch_Row_Query("select password from {$GLOBALS["tables"]["user"]} where id = $userid");
    if ($_POST["password"] != $curpwd[0]) {
      $storepassword = 'password = "'.$newpassword.'"';
      Sql_query("update {$GLOBALS["tables"]["user"]} set passwordchanged = now(),$storepassword where id = $userid");
    } else {
      $storepassword = "";
    }
  } else {
    $storepassword = "";
  }

  # subscribe to the lists
  $lists = '';
  if (isset($_POST['list']) && is_array($_POST["list"])) {
    while(list($key,$val)= each($_POST["list"])) {
      if ($val == "signup") {
        $result = Sql_query("replace into {$GLOBALS["tables"]["listuser"]} (userid,listid,entered) values($userid,$key,now())");
        $lists .= "\n  * ".listname($key);
        addSubscriberStatistics('subscribe',1,$key);
      }
    }
  }

  # remember the users attributes
  # make sure to only remember the ones from this subscribe page
  $history_entry .= 'Subscribe page: '.$id;
  array_push($attributes,0);
  $attids = join_clean(',',$attributes);
  if ($attids && $attids != "") {
    $res = Sql_Query("select * from ".$GLOBALS["tables"]["attribute"]." where id in ($attids)");
    while ($row = Sql_Fetch_Array($res)) {
      $fieldname = "attribute" .$row["id"];
      $value = $_POST[$fieldname];
  #    if ($value != "") {
        if (is_array($value)) {
          $newval = array();
          foreach ($value as $val) {
            array_push($newval,sprintf('%0'.$checkboxgroup_storesize.'d',$val));
          }
          $value = join(",",$newval);
        } elseif ($row["type"] == "date") {
          $value = $date->getDate($fieldname);
        } elseif ($row['type'] != 'textarea') {
          if (preg_match("/(.*)\n/U",$value,$regs)) {
            $value = $regs[1];
          }
        }
        Sql_Query(sprintf('replace into %s (attributeid,userid,value) values("%s","%s","%s")',
          $GLOBALS["tables"]["user_attribute"],$row["id"],$userid,$value));
        $history_entry .= "\n".$row["name"] . ' = '.UserAttributeValue($userid,$row["id"]);
  #    }
    }
  }
  $information_changed = 0;
  if (isset($old_data) && is_array($old_data)) {
    $history_subject = 'Re-Subscription';
    # when they submit a new subscribe
    $current_data = Sql_Fetch_Array_Query(sprintf('select * from %s where id = %d',$GLOBALS["tables"]["user"],$userid));
    $current_data = array_merge($current_data,getUserAttributeValues('',$userid));
    foreach ($current_data as $key => $val) {
      if (!is_numeric($key))
      if ($old_data[$key] != $val && $key != "password" && $key != "modified") {
        $information_changed = 1;
        $history_entry .= "\n$key = $val\n*changed* from $old_data[$key]";
       }
    }
    if (!$information_changed) {
      $history_entry .= "\nNo user details changed";
    }
  } else {
    $history_subject = 'Subscription';
  }

  $history_entry .= "\n\nList Membership: \n$lists\n";

  $subscribemessage = ereg_replace('\[LISTS\]', $lists, getUserConfig("subscribemessage:$id",$userid));

  $blacklisted = isBlackListed($email);

  print '<title>'.$GLOBALS["strSubscribeTitle"].'</title>';
  print $subscribepagedata["header"];
  if (isset($_SESSION["adminloggedin"]) && $_SESSION["adminloggedin"]) {
    print '<p><b>You are logged in as '.$_SESSION["logindetails"]["adminname"].'</b></p>';
    print '<p><a href="'.$adminpages.'">Back to the main admin page</a></p>';
    if ($_POST["makeconfirmed"] && !$blacklisted) {
      $sendrequest = 0;
      Sql_Query(sprintf('update %s set confirmed = 1 where email = "%s"',$GLOBALS["tables"]["user"],$email));
      addUserHistory($email,$history_subject." by ".$_SESSION["logindetails"]["adminname"],$history_entry);
    } elseif ($_POST["makeconfirmed"]) {
      print '<p>'.$GLOBALS['I18N']->get('Email is blacklisted, so request for confirmation has been sent.').'<br/>';
      print $GLOBALS['I18N']->get('If user confirms subscription, they will be removed from the blacklist.').'</p>';
      $sendrequest = 1;
    } else {
      $sendrequest = 1;
    }
  } else {
    $sendrequest = 1;
  }

  # personalise the thank you page
  if ($subscribepagedata["thankyoupage"]) {
    $thankyoupage = $subscribepagedata["thankyoupage"];
  } else {
    $thankyoupage = '<h3>'.$strThanks.'</h3>'. $strEmailConfirmation;
  }

  if (eregi("\[email\]",$thankyoupage,$regs))
    $thankyoupage = eregi_replace("\[email\]",$email,$thankyoupage);
  $user_att = getUserAttributeValues($email);
  while (list($att_name,$att_value) = each ($user_att)) {
    if (eregi("\[".$att_name."\]",$thankyoupage,$regs))
      $thankyoupage = eregi_replace("\[".$att_name."\]",$att_value,$thankyoupage);
  }

  if (is_array($GLOBALS["plugins"])) {
    reset($GLOBALS["plugins"]);
    foreach ($GLOBALS["plugins"] as $name => $plugin) {
      $thankyoupage = $plugin->parseThankyou($id,$userid,$thankyoupage);
    }
  }

  $blacklisted = isBlackListed($email);
  if ($blacklisted) {
    $thankyoupage .= '<p>'.$GLOBALS["strYouAreBlacklisted"].'</p>';
  }
  if ($sendrequest && $listsok) { #is_array($_POST["list"])) {
    if (sendMail($email, getConfig("subscribesubject:$id"), $subscribemessage,system_messageheaders($email),$envelope,1)) {
      sendAdminCopy("Lists subscription","\n".$email . " has subscribed\n\n$history_entry");
      addUserHistory($email,$history_subject,$history_entry);
      print $thankyoupage;
     } else {
      print '<h3>'.$strEmailFailed.'</h3>';
      if ($blacklisted) {
        print '<p>'.$GLOBALS["strYouAreBlacklisted"].'</p>';
      }
    }
  } else {
    print $thankyoupage;
    if ($_SESSION["adminloggedin"]) {
      print "<p>User has been added and confirmed</p>";
    }
  }

  print "<P>".$PoweredBy.'</p>';
  print $subscribepagedata["footer"];
//  exit;
  // Instead of exiting here, we return 2. So in lists/index.php
  // We can decide, whether to show subcribe page or not.
  ## issue 6508
  return 2;
} elseif (isset($_POST["update"]) && $_POST["update"] && is_email($_POST["email"]) && $allthere) {
  $email = trim($_POST["email"]);
  if (preg_match("/(.*)\n/U",$email,$regs)) {
    $email = $regs[1];
  }
  if ($_GET["uid"]) {
    $req = Sql_Fetch_Row_Query(sprintf('select id from %s where uniqid = "%s"',
      $GLOBALS["tables"]["user"],$_GET["uid"]));
    $userid = $req[0];
  } else {
    $req = Sql_Fetch_Row_query("select id from {$GLOBALS["tables"]["user"]} where email = \"".$_GET["email"]."\"");
    $userid = $req[0];
  }
  if (!$userid)
    Fatal_Error("Error, no such user");
  # update the existing record, check whether the email has changed
  $req = Sql_Query("select * from {$GLOBALS["tables"]["user"]} where id = $userid");
  $data = Sql_fetch_array($req);

  # check that the password was provided if required
  # we only require a password if there is one, otherwise people are blocked out
  # when switching to requiring passwords
  if (ASKFORPASSWORD && $data['password']) {
    # they need to be "logged in" for this
    if (empty($_SESSION['userloggedin'])) {
      Fatal_Error("Access Denied");
      exit;
    }
    $checkpassword = '';
    $allow = 0;
    # either they have to give the current password, or given two new ones
    if (ENCRYPTPASSWORD) {
      $checkpassword = sprintf('%s',md5($_POST["password"]));
     } else {
      $checkpassword = sprintf('%s',$_POST["password"]);
    }
    if (!empty($_POST['password_check'])) {
      $allow = $_POST['password_check'] == $_POST['password'] && !empty($_POST['password']);
    } else {
      $allow = (!empty($_POST['password']) && $data['password'] == $checkpassword) || empty($_POST['password']);
    }

    if (!$allow) {
      # @@@ this check should be done above, so the error can be embedded in the template
      print $GLOBALS["strPasswordsNoMatch"];
      exit;
    }
  }

  # check whether they are changing to an email that already exists, should not be possible
  $req = Sql_Query("select uniqid from {$GLOBALS["tables"]["user"]} where email = \"$email\"");
  if (Sql_Affected_Rows()) {
    $row = Sql_Fetch_Row($req);
    if ($row[0] != $_GET["uid"]) {
      Fatal_Error("Cannot change to that email address.
      <br/>This email already exists.
      <br/>Please use the preferences URL for this email to make updates.
      <br/>Click <a href=\"".getConfig("preferencesurl")."&email=$email\">here</a> to request your personal location");
      exit;
    }
  }
  # read the current values to compare changes
  $old_data = Sql_Fetch_Array_Query(sprintf('select * from %s where id = %d',$GLOBALS["tables"]["user"],$userid));
  $old_data = array_merge($old_data,getUserAttributeValues('',$userid));
  $history_entry = 'http://'.getConfig("website").$GLOBALS["adminpages"].'/?page=user&id='.$userid."\n\n";

  if (ASKFORPASSWORD && $_POST["password"]) {
    if (ENCRYPTPASSWORD) {
      $newpassword = sprintf('%s',md5($_POST["password"]));
     } else {
      $newpassword = sprintf('%s',$_POST["password"]);
    }
     # see whether is has changed
    $curpwd = Sql_Fetch_Row_Query("select password from {$GLOBALS["tables"]["user"]} where id = $userid");
    if ($_POST["password"] != $curpwd[0]) {
      $storepassword = 'password = "'.$newpassword.'",';
      Sql_query("update {$GLOBALS["tables"]["user"]} set passwordchanged = now() where id = $userid");
      $history_entry .= "\nUser has changed their password\n";
      addSubscriberStatistics('password change',1);
    } else {
      $storepassword = "";
    }
  } else {
    $storepassword = "";
  }

  $rssfrequency = validateRssFrequency($_POST['rssfrequency']);
  $query = sprintf('update %s set email = "%s", %s htmlemail = %d, rssfrequency = "%s" where id = %d',
    $GLOBALS["tables"]["user"],addslashes($_POST["email"]),$storepassword,$_POST["htmlemail"],$rssfrequency,$userid);
 #print $query;
  $result = Sql_query($query);
  if ($data["email"] != $email) {
    $emailchanged = 1;
    Sql_Query(sprintf('update %s set confirmed = 0 where id = %d',$GLOBALS["tables"]["user"],$userid));
  }

  # subscribe to the lists
  # first take them off the ones, then re-subscribe
  if ($subscribepagedata["lists"]) {
    $subscribepagedata["lists"] = preg_replace("/^\,/","",$subscribepagedata["lists"]);
    Sql_query(sprintf('delete from %s where userid = %d and listid in (%s)',$GLOBALS["tables"]["listuser"],$userid,$subscribepagedata["lists"]));
    $liststat = explode(',',$subscribepagedata["lists"]);
  } else {
    Sql_query(sprintf('delete from %s where userid = %d',$GLOBALS["tables"]["listuser"],$userid));
  }

  $lists = "";
  if (is_array($_POST["list"])) {
    while(list($key,$val)= each($_POST["list"])) {
      if ($val == "signup") {
        $result = Sql_query("replace into {$GLOBALS["tables"]["listuser"]} (userid,listid,entered) values($userid,$key,now())");
#        $lists .= "  * ".$_POST["listname"][$key]."\n";
      }
    }
  }
  # check list membership
  $req = Sql_Query(sprintf('select * from %s listuser,%s list where listuser.userid = %d and listuser.listid = list.id and list.active',$GLOBALS['tables']['listuser'],$GLOBALS['tables']['list'],$userid));
  while ($row = Sql_Fetch_Array($req)) {
    $lists .= "  * ".listName($row['listid'])."\n";
  }

  if ($lists == "")
    $lists = "No Lists";
  if ($lists == "")
    $lists = "No Lists";

  $datachange .= "$strEmail : ".$email . "\n";
  if ($subscribepagedata["htmlchoice"] != "textonly"
    && $subscribepagedata["htmlchoice"] != "htmlonly") {
    $datachange .= "$strSendHTML : ";
    $datachange .= $_POST["htmlemail"] ? "$strYes\n":"$strNo\n";
  }
  $rssfrequency = validateRssFrequency($_POST['rssfrequency']);
  if ($rssfrequency) {
    $datachange .= "$strFrequency : ".$rssfrequency."\n";
  }

  # remember the users attributes
  $attids = join_clean(',',$attributes);
  if ($attids && $attids != "") {
    $res = Sql_Query("select * from ".$GLOBALS["tables"]["attribute"] ." where id in ($attids)");
    while ($attribute = Sql_Fetch_Array($res)) {
      $fieldname = "attribute" .$attribute["id"];
      $value = $_POST[$fieldname];
      $replace = 1;#isset($_POST[$fieldname]);
      if (is_array($value)) {
        $values = array();
        foreach ($value as $val) {
          array_push($values,sprintf('%0'.$checkboxgroup_storesize.'d',$val));
        }
        $value = join(",",$values);
      } elseif ($attribute["type"] == "date") {
        $value = $date->getDate($fieldname);
      } elseif ($row['type'] != 'textarea') {
        if (preg_match("/(.*)\n/U",$value,$regs)) {
          $value = $regs[1];
        }
      }
      if ($replace) {
        Sql_query(sprintf('replace into %s (attributeid,userid,value) values("%s","%s","%s")',
          $GLOBALS["tables"]["user_attribute"],$attribute["id"],$userid,$value));
        if ($attribute["type"] != "hidden") {
          $datachange .= strip_tags($attribute["name"]) . " : ";
          if ($attribute["type"] == "checkbox")
            $datachange .= $value?$strYes:$strNo;
          elseif ($attribute["type"] != "date" && $attribute["type"] != "textline" && $attribute["type"] != "textarea")
            $datachange .= AttributeValue($attribute["tablename"],$value);
          else
            $datachange .= stripslashes($value);
          $datachange .= "\n";
        }
      }
    }
  }
  $current_data = Sql_Fetch_Array_Query(sprintf('select * from %s where id = %d',$GLOBALS["tables"]["user"],$userid));
  $current_data = array_merge($current_data,getUserAttributeValues('',$userid));
  foreach ($current_data as $key => $val) {
    if (!is_numeric($key))
    if ($old_data[$key] != $val && $key != "password" && $key != "modified") {
      $information_changed = 1;
      $history_entry .= "$key = $val\n*changed* from $old_data[$key]\n";
     }
  }
  if (!$information_changed) {
    $history_entry .= "\nNo user system details changed";
  }
  $history_entry .= "\n\nList Membership: \n$lists\n";

  $message = ereg_replace('\[LISTS\]', $lists, getUserConfig("updatemessage",$userid));
  $message = ereg_replace('\[USERDATA\]', $datachange, $message);
  if ($emailchanged) {
    $newaddressmessage = ereg_replace('\[CONFIRMATIONINFO\]', getUserConfig("emailchanged_text",$userid), $message);
    $oldaddressmessage = ereg_replace('\[CONFIRMATIONINFO\]', getUserConfig("emailchanged_text_oldaddress",$userid), $message);
  } else {
    $message = ereg_replace('\[CONFIRMATIONINFO\]', "", $message);
  }

  print '<title>'.$GLOBALS["strPreferencesTitle"].'</title>';
  print $subscribepagedata["header"];
  if (!TEST) {
    if ($emailchanged) {
      if (sendMail($data["email"],getConfig("updatesubject"),$oldaddressmessage, system_messageheaders($email),$envelope) &&
        sendMail($email,getConfig("updatesubject"),$newaddressmessage, system_messageheaders($email),$envelope)) {
        $ok = 1;
        sendAdminCopy("Lists information changed","\n".$data["email"] . " has changed their information.\n\nThe email has changed to $email.\n\n$history_entry");
        addUserHistory($email,"Change",$history_entry);
      } else {
        $ok = 0;
      }
    } else {
      if (sendMail($email, getConfig("updatesubject"), $message, system_messageheaders($email),$envelope)) {
        $ok = 1;
        sendAdminCopy("Lists information changed","\n".$data["email"] . " has changed their information\n\n$history_entry");
        addUserHistory($email,"Change",$history_entry);
      } else {
        $ok = 0;
      }
    }
  } else {
    $ok = 1;
  }
  if ($ok) {
    print '<h3>'.$GLOBALS["strPreferencesUpdated"].'</h3>';
    if ($emailchanged)
      echo $strPreferencesEmailChanged;
    print "<br/>";
    echo $strPreferencesNotificationSent;
  } else {
    print '<h3>'.$strEmailFailed.'</h3>';
  }
  print "<P>".$PoweredBy.'</p>';
  print $subscribepagedata["footer"];
  // exit;
  // Instead of exiting here, we return 2. So in lists/index.php
  // We can decide, whether to show preferences page or not.
  ## mantis issue 6508
  return 3; 
} elseif ((isset($_POST["subscribe"]) || isset($_POST["update"])) && !is_email($_POST["email"])) {
  $msg = '<div class="missing">'.$strEnterEmail.'</div><br/>';
} elseif ((isset($_POST["subscribe"]) || isset($_POST["update"])) && !$validhost) {
  $msg = '<div class="missing">'.$strInvalidHostInEmail.'</div><br/>';
} elseif ((isset($_POST["subscribe"]) || isset($_POST["update"])) && $missing) {
  $msg = '<div class="missing">'."$strValuesMissing: $missing".'</div><br/>';
} elseif ((isset($_POST["subscribe"]) || isset($_POST["update"])) && !isset($_POST["list"]) && !ALLOW_NON_LIST_SUBSCRIBE) {
  $msg = '<div class="missing">'.$strEnterList.'</div><br/>';
} else {
#  $msg = 'Unknown Error';
}

function ListAvailableLists($userid = 0,$lists_to_show = "") {
  global $tables;
  if (isset($_POST['list'])) {
    $list = $_POST["list"];
  } else {
    $list = '';
  }
  $subselect = "";$listset = array();

  $showlists = explode(",",$lists_to_show);
  foreach ($showlists as $listid)
    if (preg_match("/^\d+$/",$listid))
      array_push($listset,$listid);
  if (sizeof($listset) >= 1) {
    $subselect = "where id in (".join(",",$listset).") ";
  }

  $some = 0;
  $html = '<ul class="list">';
  $result = Sql_query("SELECT * FROM {$GLOBALS["tables"]["list"]} $subselect order by listorder, name");
  while ($row = Sql_fetch_array($result)) {
    if ($row["active"]) {
      $html .= '<li class="list"><input type="checkbox" name="list['.$row["id"] . ']" value=signup ';
      if (isset($list[$row["id"]]) && $list[$row['id']] == "signup")
        $html .= "checked";
      if ($userid) {
        $req = Sql_Fetch_Row_Query(sprintf('select userid from %s where userid = %d and listid = %d',
          $GLOBALS["tables"]["listuser"],$userid,$row["id"]));
        if (Sql_Affected_Rows())
          $html .= "checked";
      }
      $html .= " /><b>".stripslashes($row["name"]).'</b><div class="listdescription">';
      $desc = nl2br(StripSlashes($row["description"]));
      $html .= '<input type=hidden name="listname['.$row["id"] . ']" value="'.htmlspecialchars(stripslashes($row["name"])).'"/>';
      $html .= $desc.'</div></li>';
      $some++;
      if ($some == 1) {
        $singlelisthtml = sprintf('<input type="hidden" name="list[%d]" value="signup">',$row["id"]);
        $singlelisthtml .= '<input type="hidden" name="listname['.$row["id"] . ']" value="'.htmlspecialchars(stripslashes($row["name"])).'"/>';
      }
    }
  }
  $html .= '</ul>';
  $hidesinglelist = getConfig("hide_single_list");
  if (!$some) {
    global $strNotAvailable;
    return '<p>'.$strNotAvailable.'</p>';
  } elseif ($some == 1 && $hidesinglelist == "true") {
    return $singlelisthtml;
  } else {
    global $strPleaseSelect;
    return '<p>'.$strPleaseSelect .':</p>'.$html;
  }
}

function ListAttributes($attributes,$attributedata,$htmlchoice = 0,$userid = 0,$emaildoubleentry='no' ) {
  global $strPreferHTMLEmail,$strPreferTextEmail,
    $strEmail,$tables,$table_prefix,$strPreferredFormat,$strText,$strHTML;
/*  if (!sizeof($attributes)) {
    return "No attributes have been defined for this page";
   }
*/
  if ($userid) {
    $data = array();
    $current = Sql_Fetch_array_Query("select * from {$GLOBALS["tables"]["user"]} where id = $userid");
    $datareq = Sql_Query("select * from {$GLOBALS["tables"]["user_attribute"]} where userid = $userid");
    while ($row = Sql_Fetch_Array($datareq)) {
      $data[$row["attributeid"]] = $row["value"];
    }

    $email = $current["email"];
    $htmlemail = $current["htmlemail"];
    # override with posted info
    foreach ($current as $key => $val) {
      if ($_POST[$key] && $key != "password") {
        $current[$key] = $val;
      }
    }
  } else {
    if (isset($_REQUEST['email'])) {
      $email = stripslashes($_REQUEST["email"]);
    } else {
      $email = '';
    }
    if (isset($_POST['htmlemail'])) {
      $htmlemail = $_POST["htmlemail"];
    }
    $data = array();
    $current = array();
  }

  $textlinewidth = sprintf('%d',getConfig("textline_width"));
  if (!$textlinewidth) $textlinewidth = 40;
  list($textarearows,$textareacols) = explode(",",getConfig("textarea_dimensions"));
  if (!$textarearows) $textarearows = 10;
  if (!$textareacols) $textareacols = 40;

  $html = '';
  if (!isset($_GET['page']) || (isset($_GET['page']) && $_GET["page"] != "import1"))
  $html = sprintf('
  <tr><td><div class="required">%s</div></td>
  <td class="attributeinput"><input type=text name=email value="%s" size="%d">
  <script language="Javascript" type="text/javascript">addFieldToCheck("email","%s");</script></td></tr>',
  $GLOBALS["strEmail"],htmlspecialchars($email),$textlinewidth,$GLOBALS["strEmail"]);

// BPM 12 May 2004 - Begin
if ($emaildoubleentry=='yes')
{
if (!isset($_REQUEST['emailconfirm'])) $_REQUEST['emailconfirm'] = '';
$html .= sprintf('
  <tr><td><div class="required">%s</div></td>
  <td class="attributeinput"><input type=text name=emailconfirm value="%s" size="%d">
  <script language="Javascript" type="text/javascript">addFieldToCheck("emailconfirm","%s");</script></td></tr>',
  $GLOBALS["strConfirmEmail"],htmlspecialchars(stripslashes($_REQUEST["emailconfirm"])),$textlinewidth, $GLOBALS["$strConfirmEmail"]);
}
// BPM 12 May 2004 - Finish

  if ((isset($_GET['page']) && $_GET["page"] != "import1") || !isset($_GET['page']))
  if (ASKFORPASSWORD) {
    # we only require a password if there isnt one, so they can set it
    # otherwise they can keep the existing, if they do not enter anything
    if (!isset($current['password']) || !$current["password"]) {
      $pwdclass = "required";
      $js = sprintf('<script language="Javascript" type="text/javascript">addFieldToCheck("password","%s");</script>',$GLOBALS["strPassword"]);
      $js2 = sprintf('<script language="Javascript" type="text/javascript">addFieldToCheck("password_check","%s");</script>',$GLOBALS["strPassword2"]);
      $html .= '<input type=hidden name="passwordreq" value="1">';
    } else {
      $pwdclass = 'attributename';
      $html .= '<input type=hidden name="passwordreq" value="0">';
    }

    $html .= sprintf('
  <tr><td><div class="%s">%s</div></td>
  <td class="attributeinput"><input type=password name=password value="" size="%d">%s</td></tr>',
  $pwdclass,$GLOBALS["strPassword"],$textlinewidth,$js);
    $html .= sprintf('
  <tr><td><div class="%s">%s</div></td>
  <td class="attributeinput"><input type=password name="password_check" value="" size="%d">%s</td></tr>',
  $pwdclass,$GLOBALS["strPassword2"],$textlinewidth,$js2);
   }

## Write attribute fields
  switch($htmlchoice) {
    case "textonly":
      if (!isset($htmlemail))
        $htmlemail = 0;
      $html .= sprintf('<input type=hidden name="htmlemail" value="0">');
      break;
    case "htmlonly":
      if (!isset($htmlemail))
        $htmlemail = 1;
      $html .= sprintf('<input type=hidden name="htmlemail" value="1">');
      break;
    case "checkfortext":
      if (!isset($htmlemail))
        $htmlemail = 0;
      $html .= sprintf('<tr><td colspan=2>
      <span class="attributeinput">
      <input type=checkbox name="textemail" value="1" %s></span>
      <span class="attributename">%s</span>
      </td></tr>',!$htmlemail,$strPreferTextEmail);
      break;
    case "radiotext":
      if (!isset($htmlemail))
        $htmlemail = 0;
      $html .= sprintf('<tr><td colspan=2>
        <span class="attributename">%s<br/>
        <span class="attributeinput"><input type=radio name="htmlemail" value="0" %s /></span>
        <span class="attributename">%s</span>
        <span class="attributeinput"><input type=radio name="htmlemail" value="1" %s /></span>
        <span class="attributename">%s</span></td></tr>',
        $strPreferredFormat,
        !$htmlemail ? "checked":"",$strText,
        $htmlemail ? "checked":"",$strHTML);
      break;
    case "radiohtml":
      if (!isset($htmlemail))
        $htmlemail = 1;
      $html .= sprintf('<tr><td colspan=2>
        <span class="attributename">%s</span><br/>
        <span class="attributeinput"><input type=radio name="htmlemail" value="0" %s /></span>
        <span class="attributename">%s</span>
        <span class="attributeinput"><input type=radio name="htmlemail" value="1" %s /></span>
        <span class="attributename">%s</span></td></tr>',
        $strPreferredFormat,
        !$htmlemail ? "checked":"",$strText,
        $htmlemail ? "checked":"",$strHTML);
      break;
    case "checkforhtml":
    default:
      if (!isset($htmlemail))
        $htmlemail = 0;
      $html .= sprintf('<tr><td colspan=2>
        <span class="attributeinput"><input type=checkbox name="htmlemail" value="1" %s /></span>
        <span class="attributename">%s</span></td></tr>',$htmlemail ? "checked":"",$strPreferHTMLEmail);
      break;
  }
  $html .= "\n";

  $attids = join(',',array_keys($attributes));
  $output = array();
  if ($attids) {
    $res = Sql_Query("select * from {$GLOBALS["tables"]["attribute"]} where id in ($attids)");
    while ($attr = Sql_Fetch_Array($res)) {
      $output[$attr["id"]] = '';
      if (!isset($data[$attr['id']])) {
        $data[$attr['id']] = '';
      }
      $attr["required"] = $attributedata[$attr["id"]]["required"];
      $attr["default_value"] = $attributedata[$attr["id"]]["default_value"];
      $fieldname = "attribute" .$attr["id"];
  #  print "<tr><td>".$attr["id"]."</td></tr>";
      if ($userid && !isset($_POST[$fieldname])) {
        # post values take precedence
        $val = Sql_Fetch_Row_Query(sprintf('select value from %s where
          attributeid = %d and userid = %d',$GLOBALS["tables"]["user_attribute"],$attr["id"],$userid));
        $_POST[$postvalue] = $val[0];
      } elseif (!isset($_POST[$fieldname])) {
        $_POST[$fieldname] = 0;
      }
      switch ($attr["type"]) {
        case "checkbox":
          $output[$attr["id"]] = '<tr><td colspan=2>';
          # what they post takes precedence over the database information
          if ($_POST[$fieldname])
            $checked = $_POST[$fieldname] ? "checked":"";
          else
            $checked = $data[$attr["id"]] ? "checked":"";
          $output[$attr["id"]] .= sprintf("\n".'<input type="checkbox" name="%s" value="on" %s class="attributeinput">',$fieldname,$checked);
          $output[$attr["id"]] .= sprintf("\n".'<span class="%s">%s</span>',$attr["required"] ? 'required' : 'attributename',stripslashes($attr["name"]));
          if ($attr["required"])
            $output[$attr["id"]] .= sprintf('<script language="Javascript" type="text/javascript">addFieldToCheck("%s","%s");</script>',$fieldname,$attr["name"]);
          break;
        case "radio":
          $output[$attr["id"]] .= sprintf("\n".'<tr><td colspan=2><div class="%s">%s</div>',$attr["required"] ? 'required' : 'attributename',stripslashes($attr["name"]));
          $values_request = Sql_Query("select * from $table_prefix"."listattr_".$attr["tablename"]." order by listorder,name");
          while ($value = Sql_Fetch_array($values_request)) {
            if (!empty($_POST[$fieldname]))
              $checked = $_POST[$fieldname] == $value["id"] ? "checked":"";
            else if ($data[$attr["id"]])
              $checked = $data[$attr["id"]] == $value["id"] ? "checked":"";
            else
              $checked = $attr["default_value"] == $value["name"] ? "checked":"";
            $output[$attr["id"]] .= sprintf('&nbsp;%s&nbsp;<input type=radio  class="attributeinput" name="%s" value="%s" %s>',
              $value["name"],$fieldname,$value["id"],$checked);
          }
          if ($attr["required"])
            $output[$attr["id"]] .= sprintf('<script language="Javascript" type="text/javascript">addGroupToCheck("%s","%s");</script>',$fieldname,$attr["name"]);
          break;
        case "select":
          $output[$attr["id"]] .= sprintf("\n".'<tr><td><div class="%s">%s</div>',$attr["required"] ? 'required' : 'attributename',stripslashes($attr["name"]));
          $values_request = Sql_Query("select * from $table_prefix"."listattr_".$attr["tablename"]." order by listorder,name");
          $output[$attr["id"]] .= sprintf('</td><td class="attributeinput"><!--%d--><select name="%s" class="attributeinput">',$data[$attr["id"]],$fieldname);
          while ($value = Sql_Fetch_array($values_request)) {
            if (!empty($_POST[$fieldname]))
              $selected = $_POST[$fieldname] == $value["id"] ? "selected" : "";
            else if ($data[$attr["id"]])
              $selected = $data[$attr["id"]] == $value["id"] ? "selected":"";
            else
              $selected = $attr["default_value"] == $value["name"] ? "selected":"";
            if (preg_match('/^'.preg_quote(EMPTY_VALUE_PREFIX).'/i',$value['name'])) {
              $value['id'] = '';
            }
            $output[$attr["id"]] .= sprintf('<option value="%s" %s>%s',$value["id"],$selected,stripslashes($value["name"]));
          }
          $output[$attr["id"]] .= "</select>";
          break;
        case "checkboxgroup":
          $output[$attr["id"]] .= sprintf("\n".'<tr><td colspan=2><div class="%s">%s</div>',$attr["required"] ? 'required' : 'attributename',stripslashes($attr["name"]));
          $values_request = Sql_Query("select * from $table_prefix"."listattr_".$attr["tablename"]." order by listorder,name");
          $output[$attr["id"]] .= sprintf('</td></tr>');
          while ($value = Sql_Fetch_array($values_request)) {
            if (is_array($_POST[$fieldname]))
              $selected = in_array($value["id"],$_POST[$fieldname]) ? "checked" : "";
            else if ($data[$attr["id"]]) {
              $selection = explode(",",$data[$attr["id"]]);
              $selected = in_array($value["id"],$selection) ? "checked":"";
            }
            $output[$attr["id"]] .= sprintf('<tr><td colspan=2 class="attributeinput"><input type=checkbox name="%s[]"  class="attributeinput" value="%s" %s> %s</td></tr>',$fieldname,$value["id"],$selected,stripslashes($value["name"]));
          }
          break;
        case "textline":
          $output[$attr["id"]] .= sprintf("\n".'<tr><td><div class="%s">%s</div>',$attr["required"] ? 'required' : 'attributename',$attr["name"]);
          $output[$attr["id"]] .= sprintf ('</td><td class="attributeinput">
            <input type=text name="%s"  class="attributeinput" size="%d" value="%s">',$fieldname,
            $textlinewidth,
            $_POST[$fieldname] ? htmlspecialchars(stripslashes($_POST[$fieldname])) : ($data[$attr["id"]] ? $data[$attr["id"]] : $attr["default_value"]));
          if ($attr["required"])
            $output[$attr["id"]] .= sprintf('<script language="Javascript" type="text/javascript">addFieldToCheck("%s","%s");</script>',$fieldname,$attr["name"]);
          break;
        case "textarea":
          $output[$attr["id"]] .= sprintf("\n".'<tr><td colspan=2>
            <div class="%s">%s</div></td></tr>',$attr["required"] ? 'required' : 'attributename',
            $attr["name"]);
          $output[$attr["id"]] .= sprintf ('<tr><td class="attributeinput" colspan=2>
            <textarea name="%s" rows="%d"  class="attributeinput" cols="%d" wrap="virtual">%s</textarea>',
            $fieldname,$textarearows,$textareacols,
            $_POST[$fieldname] ? htmlspecialchars(stripslashes($_POST[$fieldname])) : ($data[$attr["id"]] ? htmlspecialchars(stripslashes($data[$attr["id"]])) : $attr["default_value"]));
          if ($attr["required"])
            $output[$attr["id"]] .= sprintf('<script language="Javascript" type="text/javascript">addFieldToCheck("%s","%s");</script>',$fieldname,$attr["name"]);
          break;
        case "hidden":
          $output[$attr["id"]] .= sprintf('<input type=hidden name="%s" size=40 value="%s">',$fieldname,$data[$attr["id"]] ? $data[$attr["id"]] : $attr["default_value"]);
          break;
        case "date":
          require_once dirname(__FILE__)."/date.php";
          $date = new Date();
          $postval = $date->getDate($fieldname);
          if ($data[$attr["id"]]) {
            $val = $data[$attr["id"]];
          } else {
            $val = $postval;
          }

          $output[$attr["id"]] = sprintf("\n".'<tr><td><div class="%s">%s</div>',$attr["required"] ? 'required' : 'attributename',$attr["name"]);
          $output[$attr["id"]] .= sprintf ('</td><td class="attributeinput">
            %s</td></tr>',$date->showInput($fieldname,"",$val));
          break;
        default:
          print "<!-- error: huh, invalid attribute type -->";
      }
      $output[$attr["id"]] .= "</td></tr>\n";
    }
  }

  # make sure the order is correct
  foreach ($attributes as $attribute => $listorder) {
    if (isset($output[$attribute])) {
      $html .= $output[$attribute];
    }
   }
  return $html;
}

function ListAllAttributes() {
  global $tables;
  $attributes = array();
  $attributedata = array();
  $res = Sql_Query("select * from {$GLOBALS["tables"]["attribute"]} order by listorder");
  while ($row = Sql_Fetch_Array($res)) {
 #   print $row["id"]. " ".$row["name"];
    $attributes[$row["id"]] = $row["listorder"];
    $attributedata[$row["id"]]["id"] = $row["id"];
    $attributedata[$row["id"]]["default_value"] = $row["default_value"];
    $attributedata[$row["id"]]["listorder"] = $row["listorder"];
    $attributedata[$row["id"]]["required"] = $row["required"];
    $attributedata[$row["id"]]["default_value"] = $row["default_value"];
  }
  return ListAttributes($attributes,$attributedata,"checkforhtml");
}

function RSSOptions($data,$userid = 0) {
  global $rssfrequencies,$tables;
  if ($userid) {
    $current = Sql_Fetch_Row_Query("select rssfrequency from {$GLOBALS["tables"]["user"]} where id = $userid");
    $default = $current[0];
  } else {
    $default = '';
  }
  if (!$default || !in_array($default,array_keys($rssfrequencies))) {
    $default = $data["rssdefault"];
  }

  $html = "\n<table>";
  $html .= '<tr><td>'.$data["rssintro"].'</td></tr>';
  $html .= '<tr><td>';
  $options = explode(",",$data["rss"]);
  if (!in_array($data["rssdefault"],$options)) {
    array_push($options,$data["rssdefault"]);
  }
  if (sizeof($options) == 1) {
    return sprintf('<input type="hidden" name="rssfrequency" value="%s">',$options[0]);
  }

  foreach ($options as $freq) {
    if ($freq) {
      $html .= sprintf('<input type=radio name="rssfrequency" value="%s" %s>&nbsp;%s&nbsp;',
        $freq,$freq == $default ? "checked":"",$rssfrequencies[$freq]);
    }
  }
  $html .= '</td></tr></table>';
  if ($data["rssintro"])
    return $html;
}

?>
