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<? |
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|
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function wddx_ext_serialize_singlevalue($sVal) { |
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|
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if (!isset($sVal)) { return '<null/><null/>'; } |
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|
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if (is_string($sVal)) { return '<string>' . $sVal . '</string>'; } |
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if (is_array($sVal)) { return '<struct>' . $sVal . '</struct>'; } |
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|
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if ( |
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is_long($sVal) || is_int($sVal) || is_integer($sVal) || |
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is_float($sVal) || is_double($sVal) || is_real($sVal) || is_numeric($sVal) |
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) { return '<number>' . $sVal . '</number>'; } |
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|
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if (is_bool($sVal)) { return '<boolean>' . $sVal . '</boolean>'; } |
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|
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} |
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|
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|
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|
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|
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/////////////////////////////////////////////////////////////////////////// |
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// |
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// WddxSerializer |
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// |
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/////////////////////////////////////////////////////////////////////////// |
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|
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class WddxSerializer { |
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|
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var $wddxPacket = ''; |
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|
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|
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/////////////////////////////////////////////////////////////////////////// |
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// WddxSerializer() binds the function properties of the object |
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function WddxSerializer() |
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{ |
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// Compatibility section |
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// if (navigator.appVersion != "" && navigator.appVersion.indexOf("MSIE 3.") == -1) |
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if (1==1) |
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{ |
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// Character encoding table |
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|
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// Encoding table for strings (CDATA) |
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$et = array(); |
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|
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// Numbers to characters table and |
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// characters to numbers table |
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$n2c = array(); |
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$c2n = array(); |
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|
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// Encoding table for attributes (i.e. var=str) |
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$at = array(); |
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|
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for ($i = 0; $i < 256; ++$i) |
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{ |
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// Build a character from octal code |
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// $d1 = Math.floor(i/64); |
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$d1 = intval($i/64); |
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// $d2 = Math.floor((i%64)/8); |
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$d2 = intval(($i%64)/8); |
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$d3 = $i%8; |
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// $c = eval("\"\\" + d1.toString(10) + d2.toString(10) + d3.toString(10) + "\""); |
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// $c = eval("\"\\" . $d1 . $d2 . $d3 . "\""); |
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$c = $d1 . $d2 . $d3; |
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|
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// Modify character-code conversion tables |
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$n2c[$i] = $c; |
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$c2n[$c] = $i; |
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|
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// Modify encoding table |
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if ($i < 32 && $i != 9 && $i != 10 && $i != 13) |
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{ |
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// Control characters that are not tabs, newlines, and carriage returns |
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|
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// Create a two-character hex code representation |
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$hex = $i; |
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if (strlen($hex) == 1) |
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{ |
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$hex = "0" . $hex; |
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} |
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|
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$et[$n2c[$i]] = "<char code='" + $hex + "'/>"; |
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|
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// strip control chars from inside attrs |
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$at[$n2c[$i]] = ""; |
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|
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} |
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else if ($i < 128) |
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{ |
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// Low characters that are not special control characters |
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$et[$n2c[$i]] = $n2c[$i]; |
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|
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// attr table |
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$at[$n2c[$i]] = $n2c[$i]; |
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} |
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else |
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{ |
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// High characters |
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$et[$n2c[$i]] = "&#x" . $i . ";"; |
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$at[$n2c[$i]] = "&#x" . $i . ";"; |
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} |
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} |
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|
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// Special escapes for CDATA encoding |
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$et["<"] = "<"; |
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$et[">"] = ">"; |
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$et["&"] = "&"; |
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|
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// Special escapes for attr encoding |
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$at["<"] = "<"; |
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$at[">"] = ">"; |
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$at["&"] = "&"; |
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$at["'"] = "'"; |
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$at["\""] = """; |
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|
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// Store tables |
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$this->n2c = $n2c; |
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$this->c2n = $c2n; |
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$this->et = $et; |
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$this->at = $at; |
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|
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// The browser is not MSIE 3.x |
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// $this->serializeString = &wddxSerializer_serializeString(); |
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// $this->serializeAttr = &wddxSerializer_serializeAttr(); |
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} |
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else |
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{ |
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/* |
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// The browser is most likely MSIE 3.x, it is NS 2.0 compatible |
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$this->serializeString = wddxSerializer_serializeStringOld; |
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$this->serializeAttr = wddxSerializer_serializeAttrOld; |
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*/ |
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} |
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|
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/* |
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// Setup timezone information |
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|
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$tzOffset = (new Date()).getTimezoneOffset(); |
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|
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// Invert timezone offset to convert local time to UTC time |
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if (tzOffset >= 0) |
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{ |
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this.timezoneString = '-'; |
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} |
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else |
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{ |
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this.timezoneString = '+'; |
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} |
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this.timezoneString += Math.floor(Math.abs(tzOffset) / 60) + ":" + (Math.abs(tzOffset) % 60); |
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*/ |
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|
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// Common properties |
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$this->preserveVarCase = false; |
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$this->useTimezoneInfo = true; |
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|
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/* |
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// Common functions |
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$this->serialize = wddxSerializer_serialize; |
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$this->serializeValue = wddxSerializer_serializeValue; |
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$this->serializeVariable = wddxSerializer_serializeVariable; |
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$this->write = wddxSerializer_write; |
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*/ |
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|
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} |
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|
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|
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/////////////////////////////////////////////////////////////////////////// |
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// serializeValue() serializes any value that can be serialized |
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// returns true/false |
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function serializeValue($obj) |
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{ |
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|
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$this->write(wddx_ext_serialize_singlevalue($obj)); |
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|
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$bSuccess = true; |
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|
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/* |
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var bSuccess = true; |
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var val; |
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|
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if (obj == null) |
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{ |
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// Null value |
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this.write("<null/>"); |
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} |
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else if (typeof(val = obj.valueOf()) == "string") |
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{ |
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// String value |
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this.serializeString(val); |
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} |
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else if (typeof(val = obj.valueOf()) == "number") |
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{ |
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// Distinguish between numbers and date-time values |
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|
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if ( |
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typeof(obj.getTimezoneOffset) == "function" && |
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typeof(obj.toGMTString) == "function") |
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{ |
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// Possible Date |
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// Note: getYear() fix is from David Flanagan's |
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// "JS: The Definitive Guide". This code is Y2K safe. |
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this.write("<dateTime>" + |
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(obj.getYear() < 1000 ? 1900+obj.getYear() : obj.getYear()) + "-" + (obj.getMonth() + 1) + "-" + obj.getDate() + |
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"T" + obj.getHours() + ":" + obj.getMinutes() + ":" + obj.getSeconds()); |
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if (this.useTimezoneInfo) |
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{ |
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this.write(this.timezoneString); |
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} |
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this.write("</dateTime>"); |
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} |
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else |
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{ |
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// Number value |
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this.write("<number>" + val + "</number>"); |
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} |
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} |
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else if (typeof(val = obj.valueOf()) == "boolean") |
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{ |
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// Boolean value |
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this.write("<boolean value='" + val + "'/>"); |
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} |
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else if (typeof(obj) == "object") |
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{ |
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if (typeof(obj.wddxSerialize) == "function") |
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{ |
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// Object knows how to serialize itself |
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bSuccess = obj.wddxSerialize(this); |
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} |
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else if ( |
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typeof(obj.join) == "function" && |
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typeof(obj.reverse) == "function" && |
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typeof(obj.sort) == "function" && |
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typeof(obj.length) == "number") |
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{ |
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// Possible Array |
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this.write("<array length='" + obj.length + "'>"); |
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for (var i = 0; bSuccess && i < obj.length; ++i) |
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{ |
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bSuccess = this.serializeValue(obj[i]); |
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} |
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this.write("</array>"); |
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} |
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else |
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{ |
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// Some generic object; treat it as a structure |
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|
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// Use the wddxSerializationType property as a guide as to its type |
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if (typeof(obj.wddxSerializationType) == 'string') |
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{ |
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this.write('<struct type="'+ obj.wddxSerializationType +'">') |
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} |
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else |
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{ |
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this.write("<struct>"); |
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} |
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|
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for (var prop in obj) |
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{ |
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if (prop != 'wddxSerializationType') |
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{ |
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bSuccess = this.serializeVariable(prop, obj[prop]); |
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if (! bSuccess) |
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{ |
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break; |
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} |
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} |
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} |
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|
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this.write("</struct>"); |
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} |
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} |
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else |
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{ |
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// Error: undefined values or functions |
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bSuccess = false; |
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} |
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*/ |
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|
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// Successful serialization |
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return $bSuccess; |
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} |
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|
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|
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/* |
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/////////////////////////////////////////////////////////////////////////// |
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// serializeAttr() serializes an attribute (such as a var tag) using JavaScript |
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// functionality available in NS 3.0 and above |
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function wddxSerializer_serializeAttr(s) |
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{ |
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for (var i = 0; i < s.length; ++i) |
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{ |
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this.write(this.at[s.charAt(i)]); |
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} |
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} |
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|
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|
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/////////////////////////////////////////////////////////////////////////// |
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// serializeAttrOld() serializes a string using JavaScript functionality |
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// available in IE 3.0. We don't support special characters for IE3, so |
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// just throw the unencoded text and hope for the best |
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function wddxSerializer_serializeAttrOld(s) |
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{ |
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this.write(s); |
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} |
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*/ |
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|
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/////////////////////////////////////////////////////////////////////////// |
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// serializeString() serializes a string using JavaScript functionality |
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// available in NS 3.0 and above |
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function wddxSerializer_serializeString($s) |
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{ |
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$this->write("<string>"); |
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for ($i = 0; $i < strlen($s); ++$i) |
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{ |
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$this->write($this->et[substr($s, $i, 1)]); |
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} |
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$this->write("</string>"); |
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} |
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|
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|
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|
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/////////////////////////////////////////////////////////////////////////// |
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// write() appends text to the wddxPacket buffer |
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function write($str) |
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{ |
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$this->wddxPacket .= $str; |
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} |
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|
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|
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|
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/////////////////////////////////////////////////////////////////////////// |
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// serialize() creates a WDDX packet for a given object |
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// returns the packet on success or null on failure |
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function serialize($rootObj) |
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{ |
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$this->wddxPacket = ""; |
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|
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$this->write("<wddxPacket version='1.0'><header/><data>"); |
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$bSuccess = $this->serializeValue($rootObj); |
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$this->write("</data></wddxPacket>"); |
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|
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// return $this->wddxPacket; |
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|
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if ($bSuccess) |
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{ |
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return $this->wddxPacket; |
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} |
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else |
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{ |
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return null; |
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} |
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|
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} |
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|
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|
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/////////////////////////////////////////////////////////////////////////// |
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// envelope() creates a WDDX envelope around a given string |
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// returns the packet on success or null on failure |
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function packEnvelope() |
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{ |
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$this->wddxPacket = |
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"<wddxPacket version='1.0'><header/><data>" . |
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$this->wddxPacket . |
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"</data></wddxPacket>"; |
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|
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return $this->wddxPacket; |
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|
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} |
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|
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} |
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|
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|
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?> |
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