247 lines
9.8 KiB
PHP
247 lines
9.8 KiB
PHP
<?php
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// This program is free software: you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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// This program is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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// Security check
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if (!defined('G_DNSTOOL_ENTRY_POINT'))
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die("Not a valid entry point");
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require_once("common_ui.php");
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require_once("validator.php");
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require_once("modify.php");
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require_once("zones.php");
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class TabEdit
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{
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//! This function checks if there is a request to edit any record in POST data and if yes, it processes it
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public static function Process($form)
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{
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global $g_domains;
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if (!isset($_POST["submit"]))
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return;
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$zone = $_POST["zone"];
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if (!Zones::IsEditable($zone))
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Error("Domain $zone is not writeable");
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if (!IsAuthorizedToWrite($zone))
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Error("You are not authorized to edit $zone");
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if (!CheckEmpty($form, $zone, "Zone"))
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return;
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$record = $_POST["record"];
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if ($record === NULL)
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$record = "";
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$ttl = $_POST["ttl"];
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if (!CheckEmpty($form, $ttl, "ttl"))
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return;
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$value = $_POST["value"];
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if (!CheckEmpty($form, $value, "Value"))
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return;
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$type = $_POST["type"];
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if (!CheckEmpty($form, $type, "Type"))
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return;
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if (!IsValidRecordType($type))
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Error("Type $type is not a valid DNS record type");
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if (!is_numeric($ttl))
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Error('TTL must be a number');
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if (!IsValidHostName($record))
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Error('Invalid hostname: ' . $record);
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$input = "server " . $g_domains[$zone]['update_server'] . "\n";
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$comment = NULL;
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if (isset($_POST["comment"]))
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$comment = $_POST["comment"];
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if ($_POST['submit'] == 'Create')
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{
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$input .= ProcessInsertFromPOST($zone, $record, $value, $type, $ttl);
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$input .= "send\nquit\n";
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$result = ProcessNSUpdateForDomain($input, $zone);
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if (strlen($result) > 0)
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Debug("result: " . $result);
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WriteToAuditFile('create', $record . "." . $zone . " " . $ttl . " " . $type . " " . $value, $comment);
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IncrementStat('create');
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$form->AppendObject(new BS_Alert("Successfully inserted record " . $record . "." . $zone));
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} else if ($_POST["submit"] == "Edit")
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{
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if (!isset($_POST["old"]))
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Error("Missing old record necessary for update");
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if (!NSupdateEscapeCheck($_POST["old"]))
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Error('Invalid data for old record: ' . $_POST["old"]);
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// First delete the existing record
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$input .= "update delete " . $_POST["old"] . "\n";
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$input .= ProcessInsertFromPOST($zone, $record, $value, $type, $ttl);
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$input .= "send\nquit\n";
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$result = ProcessNSUpdateForDomain($input, $zone);
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if (strlen($result) > 0)
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Debug("result: " . $result);
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WriteToAuditFile('replace_delete', $_POST["old"], $comment);
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IncrementStat('replace_delete');
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WriteToAuditFile('replace_create', $record . "." . $zone . " " . $ttl . " " . $type . " " . $value, $comment);
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IncrementStat('replace_create');
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$form->AppendObject(new BS_Alert("Successfully replaced " . $_POST["old"] . " with " . $record . "." . $zone . " " .
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$ttl . " " . $type . " " . $value));
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} else
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{
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Error("Unknown modify mode");
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}
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// Create PTR if wanted
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if (isset($_POST['ptr']) && $_POST['ptr'] === "true")
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{
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Debug('PTR record was requested, checking zone name');
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if ($type !== "A")
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{
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DisplayWarning('PTR record was not created: PTR record can be only created when you are inserting A record, you created ' . $type . ' record instead');
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return;
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}
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$ip_parts = explode('.', $value);
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if (count($ip_parts) != 4)
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{
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DisplayWarning('PTR record was not created: record '. $value .' is not a valid IPv4 quad');
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return;
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}
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$arpa = $ip_parts[3] . '.' . $ip_parts[2] . '.' . $ip_parts[1] . '.' . $ip_parts[0] . '.in-addr.arpa';
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$arpa_zone = Zones::GetZoneForFQDN($arpa);
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if ($arpa_zone === NULL)
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{
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DisplayWarning('PTR record was not created: there is no PTR zone for record '. $value);
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return;
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}
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if (!Zones::IsEditable($arpa_zone))
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{
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DisplayWarning('PTR record was not created: zone ' . $arpa_zone . ' is read only');
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return;
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}
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if (!IsAuthorizedToWrite($arpa_zone))
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{
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DisplayWarning("PTR record was not created: you don't have write access to zone " . $arpa_zone);
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return;
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}
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Debug('Found PTR useable zone: ' . $arpa_zone);
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$arpa_value = $record . '.' . $zone . '.';
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// Let's insert this record
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$input = "server " . $g_domains[$arpa_zone]['update_server'] . "\n";
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$input .= ProcessInsertFromPOST(NULL, $arpa, $arpa_value, 'PTR', $ttl);
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$input .= "send\nquit\n";
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$result = ProcessNSUpdateForDomain($input, $arpa_zone);
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if (strlen($result) > 0)
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Debug("result: " . $result);
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WriteToAuditFile('create', $arpa . " " . $ttl . " PTR " . $arpa_value, $comment);
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IncrementStat('create');
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}
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}
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public static function GetInsertForm($parent, $edit_mode = false, $default_key = "", $default_ttl = NULL, $default_type = "A", $default_value = "", $default_comment = "")
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{
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global $g_audit, $g_selected_domain, $g_domains, $g_editable, $g_default_ttl;
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// In case we are returning to insert form from previous insert, make default type the one we used before
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if (isset($_POST['type']))
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$default_type = $_POST['type'];
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else if (isset($_GET['type']))
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$default_type = $_GET['type'];
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else if (psf_string_endsWith($g_selected_domain, ".in-addr.arpa"))
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$default_type = "PTR";
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// Reuse some values from previous POST request
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if (isset($_POST['comment']))
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$default_comment = $_POST['comment'];
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// If ttl is not specified use default one from config file
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if ($default_ttl === NULL)
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$default_ttl = strval($g_default_ttl);
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$form = new Form("index.php?action=new", $parent);
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$form->Method = FormMethod::Post;
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$layout = new HtmlTable($form);
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$layout->BorderSize = 0;
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$layout->Headers = [ "Record", "Zone", "TTL", "Type", "Value" ];
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if ($g_audit)
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$layout->Headers[] = 'Comment';
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$form_items = [];
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$form_items[] = new BS_TextBox("record", $default_key, NULL, $layout);
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$dl = new ComboBox("zone", $layout);
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if ($edit_mode)
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{
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if ($g_selected_domain === NULL)
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{
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Error("No domain selected");
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}
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$dl->AddDefaultValue($g_selected_domain, "." . $g_selected_domain);
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$dl->Enabled = false;
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} else
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{
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foreach ($g_domains as $key => $info)
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{
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if (!IsAuthorizedToWrite($key))
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continue;
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if ($g_selected_domain == $key)
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$dl->AddDefaultValue($key, "." . $key);
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else
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$dl->AddValue($key, '.' . $key);
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}
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}
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$form_items[] = $dl;
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$form_items[] = new BS_TextBox("ttl", $default_ttl, NULL, $layout);
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$tl = new ComboBox("type", $layout);
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$types = $g_editable;
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foreach ($types as $type)
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{
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if ($default_type == $type)
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$tl->AddDefaultValue($type);
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else
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$tl->AddValue($type);
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}
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$form_items[] = $tl;
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$value_box = new BS_TextBox("value", $default_value, NULL, $layout);
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$value_box->Size = 45;
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$form_items[] = $value_box;
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if ($g_audit)
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{
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$comment = new BS_TextBox("comment", $default_comment, NULL, $layout);
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$comment->Placeholder = 'Optional comment for audit log';
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$comment->Size = 80;
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$form_items[] = $comment;
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}
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$layout->AppendRow($form_items);
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if (!$edit_mode && Zones::HasPTRZones())
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$form->AppendObject(new BS_CheckBox("ptr", "true", false, NULL, $form, "Create PTR record for this IP (works only with A records)"));
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if (isset($_GET["old"]))
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$form->AppendObject(new Hidden("old", htmlspecialchars($_GET["old"])));
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if ($edit_mode)
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$form->AppendObject(new BS_Button("submit", "Edit"));
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else
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$form->AppendObject(new BS_Button("submit", "Create"));
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return $form;
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}
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public static function GetEditForm($parent)
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{
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global $g_selected_domain;
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$k = $_GET["key"];
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$suffix = $g_selected_domain;
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if (psf_string_endsWith($k, $suffix))
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$k = substr($k, 0, strlen($k) - strlen($suffix));
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if (psf_string_endsWith($k, $suffix . "."))
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$k = substr($k, 0, strlen($k) - strlen($suffix) - 1);
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while (psf_string_endsWith($k, "."))
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$k = substr($k, 0, strlen($k) - 1);
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return self::GetInsertForm($parent, true, $k, $_GET["ttl"], $_GET["type"], $_GET["value"]);
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}
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}
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