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-rw-r--r--library/asn1.php291
1 files changed, 0 insertions, 291 deletions
diff --git a/library/asn1.php b/library/asn1.php
deleted file mode 100644
index 6ab8c6210..000000000
--- a/library/asn1.php
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@@ -1,291 +0,0 @@
-<?php
-
-// ASN.1 parsing library
-// Attribution: http://www.krisbailey.com
-// license: unknown
-// modified: Mike Macgrivin mike@macgirvin.com 6-oct-2010 to support Salmon auto-discovery
-// from openssl public keys
-
-
-class ASN_BASE {
- public $asnData = null;
- private $cursor = 0;
- private $parent = null;
-
- public static $ASN_MARKERS = array(
- 'ASN_UNIVERSAL' => 0x00,
- 'ASN_APPLICATION' => 0x40,
- 'ASN_CONTEXT' => 0x80,
- 'ASN_PRIVATE' => 0xC0,
-
- 'ASN_PRIMITIVE' => 0x00,
- 'ASN_CONSTRUCTOR' => 0x20,
-
- 'ASN_LONG_LEN' => 0x80,
- 'ASN_EXTENSION_ID' => 0x1F,
- 'ASN_BIT' => 0x80,
- );
-
- public static $ASN_TYPES = array(
- 1 => 'ASN_BOOLEAN',
- 2 => 'ASN_INTEGER',
- 3 => 'ASN_BIT_STR',
- 4 => 'ASN_OCTET_STR',
- 5 => 'ASN_NULL',
- 6 => 'ASN_OBJECT_ID',
- 9 => 'ASN_REAL',
- 10 => 'ASN_ENUMERATED',
- 13 => 'ASN_RELATIVE_OID',
- 48 => 'ASN_SEQUENCE',
- 49 => 'ASN_SET',
- 19 => 'ASN_PRINT_STR',
- 22 => 'ASN_IA5_STR',
- 23 => 'ASN_UTC_TIME',
- 24 => 'ASN_GENERAL_TIME',
- );
-
- function __construct($v = false)
- {
- if (false !== $v) {
- $this->asnData = $v;
- if (is_array($this->asnData)) {
- foreach ($this->asnData as $key => $value) {
- if (is_object($value)) {
- $this->asnData[$key]->setParent($this);
- }
- }
- } else {
- if (is_object($this->asnData)) {
- $this->asnData->setParent($this);
- }
- }
- }
- }
-
- public function setParent($parent)
- {
- if (false !== $parent) {
- $this->parent = $parent;
- }
- }
-
- /**
- * This function will take the markers and types arrays and
- * dynamically generate classes that extend this class for each one,
- * and also define constants for them.
- */
- public static function generateSubclasses()
- {
- define('ASN_BASE', 0);
- foreach (self::$ASN_MARKERS as $name => $bit)
- self::makeSubclass($name, $bit);
- foreach (self::$ASN_TYPES as $bit => $name)
- self::makeSubclass($name, $bit);
- }
-
- /**
- * Helper function for generateSubclasses()
- */
- public static function makeSubclass($name, $bit)
- {
- define($name, $bit);
- eval("class ".$name." extends ASN_BASE {}");
- }
-
- /**
- * This function reset's the internal cursor used for value iteration.
- */
- public function reset()
- {
- $this->cursor = 0;
- }
-
- /**
- * This function catches calls to get the value for the type, typeName, value, values, and data
- * from the object. For type calls we just return the class name or the value of the constant that
- * is named the same as the class.
- */
- public function __get($name)
- {
- if ('type' == $name) {
- // int flag of the data type
- return constant(get_class($this));
- } elseif ('typeName' == $name) {
- // name of the data type
- return get_class($this);
- } elseif ('value' == $name) {
- // will always return one value and can be iterated over with:
- // while ($v = $obj->value) { ...
- // because $this->asnData["invalid key"] will return false
- return is_array($this->asnData) ? $this->asnData[$this->cursor++] : $this->asnData;
- } elseif ('values' == $name) {
- // will always return an array
- return is_array($this->asnData) ? $this->asnData : array($this->asnData);
- } elseif ('data' == $name) {
- // will always return the raw data
- return $this->asnData;
- }
- }
-
- /**
- * Parse an ASN.1 binary string.
- *
- * This function takes a binary ASN.1 string and parses it into it's respective
- * pieces and returns it. It can optionally stop at any depth.
- *
- * @param string $string The binary ASN.1 String
- * @param int $level The current parsing depth level
- * @param int $maxLevel The max parsing depth level
- * @return ASN_BASE The array representation of the ASN.1 data contained in $string
- */
- public static function parseASNString($string=false, $level=1, $maxLevels=false){
- if (!class_exists('ASN_UNIVERSAL'))
- self::generateSubclasses();
- if ($level>$maxLevels && $maxLevels)
- return array(new ASN_BASE($string));
- $parsed = array();
- $endLength = strlen($string);
- $bigLength = $length = $type = $dtype = $p = 0;
- while ($p<$endLength){
- $type = ord($string[$p++]);
- $dtype = ($type & 192) >> 6;
- if ($type==0){ // if we are type 0, just continue
- } else {
- $length = ord($string[$p++]);
- if (($length & ASN_LONG_LEN)==ASN_LONG_LEN){
- $tempLength = 0;
- for ($x=0; $x<($length & (ASN_LONG_LEN-1)); $x++){
- $tempLength = ord($string[$p++]) + ($tempLength * 256);
- }
- $length = $tempLength;
- }
- $data = substr($string, $p, intval($length));
- $parsed[] = self::parseASNData($type, $data, $level, $maxLevels);
- $p = $p + $length;
- }
- }
- return $parsed;
- }
-
- /**
- * Parse an ASN.1 field value.
- *
- * This function takes a binary ASN.1 value and parses it according to it's specified type
- *
- * @param int $type The type of data being provided
- * @param string $data The raw binary data string
- * @param int $level The current parsing depth
- * @param int $maxLevels The max parsing depth
- * @return mixed The data that was parsed from the raw binary data string
- */
- public static function parseASNData($type, $data, $level, $maxLevels){
- $type = $type%50; // strip out context
- switch ($type){
- default:
- return new ASN_BASE($data);
- case ASN_BOOLEAN:
- return new ASN_BOOLEAN((bool)$data);
- case ASN_INTEGER:
- return new ASN_INTEGER(strtr(base64_encode($data),'+/','-_'));
- case ASN_BIT_STR:
- return new ASN_BIT_STR(self::parseASNString($data, $level+1, $maxLevels));
- case ASN_OCTET_STR:
- return new ASN_OCTET_STR($data);
- case ASN_NULL:
- return new ASN_NULL(null);
- case ASN_REAL:
- return new ASN_REAL($data);
- case ASN_ENUMERATED:
- return new ASN_ENUMERATED(self::parseASNString($data, $level+1, $maxLevels));
- case ASN_RELATIVE_OID: // I don't really know how this works and don't have an example :-)
- // so, lets just return it ...
- return new ASN_RELATIVE_OID($data);
- case ASN_SEQUENCE:
- return new ASN_SEQUENCE(self::parseASNString($data, $level+1, $maxLevels));
- case ASN_SET:
- return new ASN_SET(self::parseASNString($data, $level+1, $maxLevels));
- case ASN_PRINT_STR:
- return new ASN_PRINT_STR($data);
- case ASN_IA5_STR:
- return new ASN_IA5_STR($data);
- case ASN_UTC_TIME:
- return new ASN_UTC_TIME($data);
- case ASN_GENERAL_TIME:
- return new ASN_GENERAL_TIME($data);
- case ASN_OBJECT_ID:
- return new ASN_OBJECT_ID(self::parseOID($data));
- }
- }
-
- /**
- * Parse an ASN.1 OID value.
- *
- * This takes the raw binary string that represents an OID value and parses it into its
- * dot notation form. example - 1.2.840.113549.1.1.5
- * look up OID's here: http://www.oid-info.com/
- * (the multi-byte OID section can be done in a more efficient way, I will fix it later)
- *
- * @param string $data The raw binary data string
- * @return string The OID contained in $data
- */
- public static function parseOID($string){
- $ret = floor(ord($string[0])/40).".";
- $ret .= (ord($string[0]) % 40);
- $build = array();
- $cs = 0;
-
- for ($i=1; $i<strlen($string); $i++){
- $v = ord($string[$i]);
- if ($v>127){
- $build[] = ord($string[$i])-ASN_BIT;
- } elseif ($build){
- // do the build here for multibyte values
- $build[] = ord($string[$i])-ASN_BIT;
- // you know, it seems there should be a better way to do this...
- $build = array_reverse($build);
- $num = 0;
- for ($x=0; $x<count($build); $x++){
- $mult = $x==0?1:pow(256, $x);
- if ($x+1==count($build)){
- $value = ((($build[$x] & (ASN_BIT-1)) >> $x)) * $mult;
- } else {
- $value = ((($build[$x] & (ASN_BIT-1)) >> $x) ^ ($build[$x+1] << (7 - $x) & 255)) * $mult;
- }
- $num += $value;
- }
- $ret .= ".".$num;
- $build = array(); // start over
- } else {
- $ret .= ".".$v;
- $build = array();
- }
- }
- return $ret;
- }
-
- public static function printASN($x, $indent=''){
- if (is_object($x)) {
- echo $indent.$x->typeName."\n";
- if (ASN_NULL == $x->type) return;
- if (is_array($x->data)) {
- while ($d = $x->value) {
- echo self::printASN($d, $indent.'. ');
- }
- $x->reset();
- } else {
- echo self::printASN($x->data, $indent.'. ');
- }
- } elseif (is_array($x)) {
- foreach ($x as $d) {
- echo self::printASN($d, $indent);
- }
- } else {
- if (preg_match('/[^[:print:]]/', $x)) // if we have non-printable characters that would
- $x = base64_encode($x); // mess up the console, then print the base64 of them...
- echo $indent.$x."\n";
- }
- }
-
-
-}
-
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