642 lines
19 KiB
PHP
642 lines
19 KiB
PHP
<?php
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#******************************************************************************
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#* Name : PxAccess.inc
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#* Description : The objects for PX Payment page
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#* Copyright (c) : 2004 Direct Payment solutions
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#* Date : 2003-12-24
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#* Modifications : 2003-12-24 MifMessage class
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#* : 2004-09-01 PxAccess, PxPayRequest, PxPayResponse classes
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#* which encapsulate 3-DES to handle payment requests and
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#* response.
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#* 2004-10-14 Implements complete transactions
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#* 2005-03-14 change unpack("H*", $enc); to unpack("H$enclen", $enc);
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#* due to the version 4.3.10 Php unpack function bugs
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#*Version : 2.01.08
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#******************************************************************************
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# MifMessage.
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# Use this class to parse a DPS PX MifMessage in XML form,
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# and access the content.
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class MifMessage
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{
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var $xml_;
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var $xml_index_;
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var $xml_value_;
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# Constructor:
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# Create a MifMessage with the specified XML text.
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# The constructor returns a null object if there is a parsing error.
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function __construct($xml)
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{
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$p = xml_parser_create();
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xml_parser_set_option($p,XML_OPTION_CASE_FOLDING,0);
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$ok = xml_parse_into_struct($p, $xml, $value, $index);
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xml_parser_free($p);
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if ($ok)
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{
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$this->xml_ = $xml;
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$this->xml_value_ = $value;
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$this->xml_index_ = $index;
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}
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#print_r($this->xml_value_); # JH_DEBUG
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}
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# Return the value of the specified top-level attribute.
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# This method can only return attributes of the root element.
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# If the attribute is not found, return "".
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function get_attribute($attribute)
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{
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#$attribute = strtoupper($attribute);
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$attributes = $this->xml_value_[0]["attributes"];
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return $attributes[$attribute];
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}
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# Return the text of the specified element.
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# The element is given as a simplified XPath-like name.
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# For example, "Link/ServerOk" refers to the ServerOk element
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# nested in the Link element (nested in the root element).
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# If the element is not found, return "".
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function get_element_text($element)
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{
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#print_r($this->xml_value_); # JH_DEBUG
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$index = $this->get_element_index($element, 0);
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if ($index == 0)
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{
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return "";
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}
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else
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{
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## TW2004-09-24: Fixed bug when elemnt existent but empty
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#
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$elementObj = $this->xml_value_[$index];
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if (! array_key_exists("value", $elementObj))
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return "";
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return $this->xml_value_[$index]["value"];
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}
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}
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# (internal method)
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# Return the index of the specified element,
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# relative to some given root element index.
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#
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function get_element_index($element, $rootindex = 0)
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{
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#$element = strtoupper($element);
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$pos = strpos($element, "/");
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if ($pos !== false)
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{
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# element contains '/': find first part
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$start_path = substr($element,0,$pos);
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$remain_path = substr($element,$pos+1);
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$index = $this->get_element_index($start_path, $rootindex);
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if ($index == 0)
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{
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# couldn't find first part; give up.
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return 0;
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}
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# recursively find rest
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return $this->get_element_index($remain_path, $index);
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}
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else
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{
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# search from the parent across all its children
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# i.e. until we get the parent's close tag.
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$level = $this->xml_value_[$rootindex]["level"];
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if ($this->xml_value_[$rootindex]["type"] == "complete")
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{
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return 0; # no children
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}
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$index = $rootindex+1;
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while ($index<count($this->xml_value_) &&
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!($this->xml_value_[$index]["level"]==$level &&
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$this->xml_value_[$index]["type"]=="close"))
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{
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# if one below parent and tag matches, bingo
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if ($this->xml_value_[$index]["level"] == $level+1 &&
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# $this->xml_value_[$index]["type"] == "complete" &&
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$this->xml_value_[$index]["tag"] == $element)
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{
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return $index;
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}
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$index++;
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}
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return 0;
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}
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}
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}
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class PxAccess
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{
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var $Mac_Key, $Des_Key;
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var $PxAccess_Url;
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var $PxAccess_Userid;
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function __construct($Url, $UserId, $Des_Key, $Mac_Key){
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error_reporting(E_ERROR);
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$this->Mac_Key = pack("H*",$Mac_Key);
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$this->Des_Key = pack("H*", $Des_Key);
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$this->PxAccess_Url = $Url;
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$this->PxAccess_Userid = $UserId;
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}
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function makeRequest($request)
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{
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#Validate the REquest
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if($request->validData() == false) return "" ;
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#$txnId=rand(1,100000);
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$txnId = uniqid("MI"); #You need to generate you own unqiue reference. JZ:2004-08-12
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$request->setTxnId($txnId);
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$request->setTs($this->getCurrentTS());
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$request->setSwVersion("2.01.01");
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$request->setAppletType("PHPPxAccess");
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$xml = $request->toXml();
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if (strlen($xml)%8 != 0)
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{
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$xml = str_pad($xml, strlen($xml) + 8-strlen($xml)%8); # pad to multiple of 8
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}
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#add MAC code JZ2004-8-16
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$mac = $this->makeMAC($xml,$this->Mac_Key );
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$msg = $xml.$mac;
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#$msg = $xml;
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$enc = $this->encrypt_tripledes($msg, $this->Des_Key); #JZ2004-08-16: Include the MAC code
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$enclen = strlen($enc) * 2;
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$enc_hex = unpack("H$enclen", $enc); #JZ2005-03-14: there is a bug in the new version php unpack function
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#$enc_hex = @unpack("H*", $enc); #JZ2005-03-14: there is a bug in the new version php unpack function
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#$enc_hex = $enc_hex[""]; #use this function if PHP version before 4.3.4
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#$enc_hex = $enc_hex[1]; #use this function if PHP version after 4.3.4
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$enc_hex = (version_compare(PHP_VERSION, "4.3.4", ">=")) ? $enc_hex[1] :$enc_hex[""];
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$PxAccess_Redirect = "$this->PxAccess_Url?userid=$this->PxAccess_Userid&request=$enc_hex";
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return $PxAccess_Redirect;
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}
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#******************************************************************************
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# This function ecrypts data using 3DES via libmcrypt
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#******************************************************************************
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function encrypt_tripledes($data, $key)
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{
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# deprecated libmcrypt 2.2 encryption: use this if you have libmcrypt 2.2.x
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# $result = mcrypt_ecb(MCRYPT_DES, $key, $data, MCRYPT_ENCRYPT);
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# return $result;
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#
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# otherwise use this for libmcrypt 2.4.x and above:
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$td = mcrypt_module_open('tripledes', '', 'ecb', '');
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$iv = mcrypt_create_iv(mcrypt_enc_get_iv_size($td), MCRYPT_RAND);
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mcrypt_generic_init($td, $key, $iv);
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$result = mcrypt_generic($td, $data);
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#mcrypt_generic_deinit($td); #Might cause problem in some PHP version
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return $result;
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}
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#******************************************************************************
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# This function decrypts data using 3DES via libmcrypt
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#******************************************************************************
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function decrypt_tripledes($data, $key)
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{
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# deprecated libmcrypt 2.2 encryption: use this if you have libmcrypt 2.2.x
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# $result = mcrypt_ecb(MCRYPT_DES, $key, $data, MCRYPT_DECRYPT);
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# return $result;
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#
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# otherwise use this for libmcrypt 2.4.x and above:
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$td = mcrypt_module_open('tripledes', '', 'ecb', '');
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$iv = mcrypt_create_iv(mcrypt_enc_get_iv_size($td), MCRYPT_RAND);
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mcrypt_generic_init($td, $key, $iv);
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$result = mdecrypt_generic($td, $data);
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#mcrypt_generic_deinit($td); #Might cause problem in some PHP version
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return $result;
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}
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#JZ2004-08-16
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#******************************************************************************
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# Generate and return a message authentication code (MAC) for a string.
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# (Uses ANSI X9.9 procedure.)
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#******************************************************************************
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function makeMAC($msg,$Mackey){
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if (strlen($msg)%8 != 0)
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{
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$extra = 8 - strlen($msg)%8;
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$msg .= str_repeat(" ", $extra); # pad to multiple of 8
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}
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$mac = pack("C*", 0, 0, 0, 0, 0, 0, 0, 0); # start with all zeros
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#$mac_result = unpack("C*", $mac);
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for ( $i=0; $i<strlen($msg)/8; $i++)
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{
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$msg8 = substr($msg, 8*$i, 8);
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$mac ^= $msg8;
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$mac = $this->encrypt_des($mac,$Mackey);
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}
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#$mac = pack("C*", $mac);
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#$mac_result= encrypt_des($mac, $Mackey);
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$mac_result = unpack("H8", $mac);
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#$mac_result = $mac_result[""]; #use this function if PHP version before 4.3.4
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#$mac_result = $mac_result[1]; #use this function if PHP version after 4.3.4
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$mac_result = (version_compare(PHP_VERSION, "4.3.4", ">=")) ? $mac_result[1]: $mac_result[""];
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return $mac_result;
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}
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#******************************************************************************
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# This function ecrypts data using DES via libmcrypt
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# JZ2004-08-16
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#******************************************************************************
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function encrypt_des($data, $key)
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{
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# deprecated libmcrypt 2.2 encryption: use this if you have libmcrypt 2.2.x
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# $result = mcrypt_ecb(MCRYPT_3DES, $key, $data, MCRYPT_ENCRYPT);
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# return $result;
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#
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# otherwise use this for libmcrypt 2.4.x and above:
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$td = mcrypt_module_open('des', '', 'ecb', '');
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$iv = mcrypt_create_iv(mcrypt_enc_get_iv_size($td), MCRYPT_RAND);
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mcrypt_generic_init($td, $key, $iv);
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$result = mcrypt_generic($td, $data);
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#mcrypt_generic_deinit($td); #Might cause problem in some PHP version
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mcrypt_module_close($td);
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return $result;
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}
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#JZ2004-08-16
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function getResponse($resp_enc){
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#global $Mac_Key;
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$enc = pack("H*", $resp_enc);
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$resp = trim($this->decrypt_tripledes($enc, $this->Des_Key));
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$xml = substr($resp, 0, strlen($resp)-8);
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$mac = substr($resp, -8);
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$checkmac = $this->makeMac($xml, $this->Mac_Key);
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if($mac != $checkmac){
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$xml = "<success>0</success><ResponseText>Response MAC Invalid</ResponseText>";
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}
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$pxresp = new PxPayResponse($xml);
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return $pxresp;
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}
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#******************************************************************************
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# Return the current time (GMT/UTC).The return time formatted YYYYMMDDHHMMSS.
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#JZ2004-08-30
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#******************************************************************************
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function getCurrentTS()
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{
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return gmstrftime("%Y%m%d%H%M%S", time());
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}
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}
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#******************************************************************************
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# Class for PxPay request messages.
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#******************************************************************************
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class PxPayRequest extends PxPayMessage
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{
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var $TxnId,$UrlFail,$UrlSuccess;
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var $AmountInput, $AppletVersion, $InputCurrency;
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var $EnableAddBillCard;
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var $TS;
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var $AppletType;
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#Constructor
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function __construct(){
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$this->PxPayMessage();
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}
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function setAppletType($AppletType){
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$this->AppletType = $AppletType;
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}
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function getAppletType(){
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return $this->AppletType;
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}
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function setTs($Ts){
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$this->TS = $Ts;
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}
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function setEnableAddBillCard($EnableBillAddCard){
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$this->EnableAddBillCard = $EnableBillAddCard;
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}
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function getEnableAddBillCard(){
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return $this->EnableAddBillCard;
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}
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function setInputCurrency($InputCurrency){
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$this->InputCurrency = $InputCurrency;
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}
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function getInputCurrency(){
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return $this->InputCurrency;
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}
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function setTxnId( $TxnId)
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{
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$this->TxnId = $TxnId;
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}
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function getTxnId(){
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return $this->TxnId;
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}
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function setUrlFail($UrlFail){
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$this->UrlFail = $UrlFail;
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}
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function getUrlFail(){
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return $this->UrlFail;
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}
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function setUrlSuccess($UrlSuccess){
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$this->UrlSuccess = $UrlSuccess;
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}
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function setAmountInput($AmountInput){
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$this->AmountInput = sprintf("%9.2f",$AmountInput);
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}
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function getAmountInput(){
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return $this->AmountInput;
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}
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function setSwVersion($SwVersion){
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$this->AppletVersion = $SwVersion;
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}
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function getSwVersion(){
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return $this->AppletVersion;
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}
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#******************************************************************
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#Data validation
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#******************************************************************
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function validData(){
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$msg = "";
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if($this->TxnType != "Purchase")
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if($this->TxnType != "Auth")
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if($this->TxnType != "GetCurrRate")
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if($this->TxnType != "Refund")
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if($this->TxnType != "Complete")
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if($this->TxnType != "Order1")
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$msg = "Invalid TxnType[$this->TxnType]<br>";
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if(strlen($this->MerchantReference) > 64)
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$msg = "Invalid MerchantReference [$this->MerchantReference]<br>";
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if(strlen($this->TxnId) > 16)
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$msg = "Invalid TxnId [$this->TxnId]<br>";
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if(strlen($this->TxnData1) > 255)
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$msg = "Invalid TxnData1 [$this->TxnData1]<br>";
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if(strlen($this->TxnData2) > 255)
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$msg = "Invalid TxnData2 [$this->TxnData2]<br>";
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if(strlen($this->TxnData3) > 255)
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$msg = "Invalid TxnData3 [$this->TxnData3]<br>";
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if(strlen($this->EmailAddress) > 255)
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$msg = "Invalid EmailAddress [$this->EmailAddress]<br>";
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if(strlen($this->UrlFail) > 255)
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$msg = "Invalid UrlFail [$this->UrlFail]<br>";
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if(strlen($this->UrlSuccess) > 255)
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$msg = "Invalid UrlSuccess [$this->UrlSuccess]<br>";
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if(strlen($this->BillingId) > 32)
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$msg = "Invalid BillingId [$this->BillingId]<br>";
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if(strlen($this->DpsBillingId) > 16)
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$msg = "Invalid DpsBillingId [$this->DpsBillingId]<br>";
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if ($msg != "") {
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trigger_error($msg,E_USER_ERROR);
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return false;
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}
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return true;
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}
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}
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#******************************************************************************
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# Abstract base class for PxPay messages.
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# These are messages with certain defined elements, which can be serialized to XML.
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#******************************************************************************
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class PxPayMessage {
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var $TxnType;
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var $TxnData1;
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var $TxnData2;
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var $TxnData3;
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var $MerchantReference;
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var $EmailAddress;
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var $BillingId;
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var $DpsBillingId;
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var $DpsTxnRef;
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function __construct(){
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}
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function setDpsTxnRef($DpsTxnRef){
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$this->DpsTxnRef = $DpsTxnRef;
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}
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function getDpsTxnRef(){
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return $this->DpsTxnRef;
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}
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function setDpsBillingId($DpsBillingId){
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$this->DpsBillingId = $DpsBillingId;
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}
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function getDpsBillingId(){
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return $this->DpsBillingId;
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}
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function setBillingId($BillingId){
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$this->BillingId = $BillingId;
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}
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function getBillingId(){
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return $this->BillingId;
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}
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function setTxnType($TxnType){
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$this->TxnType = $TxnType;
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}
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function getTxnType(){
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return $this->TxnType;
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}
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function setMerchantReference($MerchantReference){
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$this->MerchantReference = $MerchantReference;
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}
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function getMerchantReference(){
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return $this->MerchantReference;
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}
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function setEmailAddress($EmailAddress){
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$this->EmailAddress = $EmailAddress;
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}
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function getEmailAddress(){
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return $this->EmailAddress;
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}
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function setTxnData1($TxnData1){
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$this->TxnData1 = $TxnData1;
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}
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function getTxnData1(){
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return $this->TxnData1;
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}
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function setTxnData2($TxnData2){
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$this->TxnData2 = $TxnData2;
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}
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function getTxnData2(){
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return $this->TxnData2;
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}
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function getTxnData3(){
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return $this->TxnData3;
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}
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function setTxnData3($TxnData3){
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$this->TxnData3 = $TxnData3;
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}
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function toXml(){
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$arr = get_object_vars($this);
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$root = get_class($this);
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if($root == "PxPayRequest")
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$root = "Request";
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elseif ($root == "PxPayResponse")
|
|
$root = "Response";
|
|
else
|
|
$root ="Request";
|
|
|
|
$xml = "<$root>";
|
|
while (list($prop, $val) = each($arr))
|
|
$xml .= "<$prop>$val</$prop>" ;
|
|
|
|
$xml .= "</$root>";
|
|
return $xml;
|
|
}
|
|
|
|
|
|
}
|
|
|
|
#******************************************************************************
|
|
# Class for PxPay response messages.
|
|
#******************************************************************************
|
|
|
|
class PxPayResponse extends PxPayMessage
|
|
{
|
|
var $Success;
|
|
var $StatusRequired;
|
|
var $Retry;
|
|
var $AuthCode;
|
|
var $AmountSettlement;
|
|
var $CurrencySettlement;
|
|
var $CardName;
|
|
var $CurrencyInput;
|
|
var $UserId;
|
|
var $ResponseText;
|
|
#var $DpsTxnRef;
|
|
var $MerchantTxnId;
|
|
var $TS;
|
|
|
|
function __construct($xml){
|
|
$msg = new MifMessage($xml);
|
|
$this->PxPayMessage();
|
|
|
|
$TS = $msg->get_element_text("TS");
|
|
$expiryTS = $this->getExpiredTS();
|
|
if(strcmp($TS, $expiryTS) < 0 ){
|
|
$this->Success = "0";
|
|
$this->ResponseText = "Response TS out of range";
|
|
return;
|
|
}
|
|
|
|
$this->setBillingId($msg->get_element_text("BillingId"));
|
|
$this->setDpsBillingId($msg->get_element_text("DpsBillingId"));
|
|
$this->setEmailAddress($msg->get_element_text("EmailAddress"));
|
|
$this->setMerchantReference($msg->get_element_text("MerchantReference"));
|
|
$this->setTxnData1($msg->get_element_text("TxnData1"));
|
|
$this->setTxnData2($msg->get_element_text("TxnData2"));
|
|
$this->setTxnData3($msg->get_element_text("TxnData3"));
|
|
$this->setTxnType($msg->get_element_text("TxnType"));
|
|
|
|
$this->Success = $msg->get_element_text("Success");
|
|
$this->StatusRequired = $msg->get_element_text("StatusRequired");
|
|
$this->Retry = $msg->get_element_text("Retry");
|
|
$this->AuthCode = $msg->get_element_text("AuthCode");
|
|
$this->AmountSettlement = $msg->get_element_text("AmountSettlement");
|
|
$this->CurrencySettlement = $msg->get_element_text("CurrencySettlement");
|
|
$this->CardName = $msg->get_element_text("CardName");
|
|
$this->CurrencyInput = $msg->get_element_text("CurrencyInput");
|
|
$this->UserId = $msg->get_element_text("UserId");
|
|
$this->ResponseText = $msg->get_element_text("ResponseText");
|
|
$this->DpsTxnRef = $msg->get_element_text("DpsTxnRef");
|
|
$this->MerchantTxnId = $msg->get_element_text("MerchantTxnId");
|
|
$this->TS = $msg->get_element_text("TS");
|
|
}
|
|
function getTS(){
|
|
return $this->TS;
|
|
}
|
|
function getMerchantTxnId(){
|
|
return $this->MerchantTxnId;
|
|
}
|
|
|
|
function getResponseText(){
|
|
return $this->ResponseText;
|
|
}
|
|
function getUserId(){
|
|
return $this->UserId;
|
|
}
|
|
function getCurrencyInput(){
|
|
return $this->CurrencyInput;
|
|
}
|
|
function getCardName(){
|
|
return $this->CardName;
|
|
}
|
|
function getCurrencySettlement(){
|
|
$this->CurrencySettlement;
|
|
}
|
|
function getAmountSettlement(){
|
|
return $this->AmountSettlement;
|
|
}
|
|
function getSuccess(){
|
|
return $this->Success;
|
|
}
|
|
function getStatusRequired(){
|
|
return $this->StatusRequired;
|
|
}
|
|
function getRetry(){
|
|
return $this->Retry;
|
|
}
|
|
function getAuthCode(){
|
|
return $this->AuthCode;
|
|
}
|
|
#******************************************************************************
|
|
# Return the expired time, i.e. 2 days ago (GMT/UTC).
|
|
#JZ2004-08-30
|
|
#******************************************************************************
|
|
function getExpiredTS()
|
|
{
|
|
|
|
return gmstrftime("%Y%m%d%H%M%S", time()- 2 * 24 * 60 * 60);
|
|
}
|
|
|
|
}
|
|
|
|
?>
|