PC World Komputer 2010 April/PCWorld0410.iso/redakcyjne/programy/Gadu-Gadu 8.0 Build 9103/nowegg.exe/scripts/common.js

Text (UTF-16) | 2009-07-08 | 10KB | 214 lines

function urlencode(plaintext)
{
    var safechars = "0123456789" + "ABCDEFGHIJKLMNOPQRSTUVWXYZ" + "abcdefghijklmnopqrstuvwxyz" + "-_.!~*'()";
    var hex = "0123456789ABCDEF";

    var encoded = "";
    for (var i = 0; i < plaintext.length; i++)
    {
        var ch = plaintext.charAt(i);
        if (ch == " ")
        {
            encoded += "+";
        }
        else if (safechars.indexOf(ch) != -1)
        {
            encoded += ch;
        }
        else
        {
            var charCode = ch.charCodeAt(0);
            if (charCode > 255)
            {
                encoded += "+";
            }
            else
            {
                encoded += "%";
                encoded += hex.charAt((charCode >> 4) & 0xF);
                encoded += hex.charAt(charCode & 0xF);
            }
        }
    }

    return encoded;
};

function urldecode(encoded)
{
   var hexchars = "0123456789ABCDEFabcdef";
   var plaintext = "";
   var i = 0;
   while (i < encoded.length)
   {
       var ch = encoded.charAt(i);
       if (ch == "+")
       {
           plaintext += " ";
           i++;
       }
       else if (ch == "%")
       {
            if (i < (encoded.length-2) && hexchars.indexOf(encoded.charAt(i+1)) != -1 && hexchars.indexOf(encoded.charAt(i+2)) != -1 )
            {
                plaintext += unescape(encoded.substring(i,3));
                i += 3;
            }
            else
            {
                plaintext += "%[ERROR]";
                i++;
            }
        }
        else
        {
           plaintext += ch;
           i++;
        }
   }
   return plaintext;
};

var keyStr = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/=";

function encodeBase64(input)
{
   var output = "";
   var chr1, chr2, chr3;
   var enc1, enc2, enc3, enc4;
   var i = 0;

   do
   {
      chr1 = input.charCodeAt(i++);
      chr2 = input.charCodeAt(i++);
      chr3 = input.charCodeAt(i++);

      enc1 = chr1 >> 2;
      enc2 = ((chr1 & 3) << 4) | (chr2 >> 4);
      enc3 = ((chr2 & 15) << 2) | (chr3 >> 6);
      enc4 = chr3 & 63;

      if (isNaN(chr2))
      {
         enc3 = enc4 = 64;
      }
      else if (isNaN(chr3))
      {
         enc4 = 64;
      }

      output = output + keyStr.charAt(enc1) + keyStr.charAt(enc2) + keyStr.charAt(enc3) + keyStr.charAt(enc4);
   } while (i < input.length);

   return output;
}

function decodeBase64(input)
{
   var output = "";
   var chr1, chr2, chr3;
   var enc1, enc2, enc3, enc4;
   var i = 0;

   // remove all characters that are not A-Z, a-z, 0-9, +, /, or =
   input = input.replace(/[^A-Za-z0-9\+\/\=]/g, "");

   do
   {
      enc1 = keyStr.indexOf(input.charAt(i++));
      enc2 = keyStr.indexOf(input.charAt(i++));
      enc3 = keyStr.indexOf(input.charAt(i++));
      enc4 = keyStr.indexOf(input.charAt(i++));

      chr1 = (enc1 << 2) | (enc2 >> 4);
      chr2 = ((enc2 & 15) << 4) | (enc3 >> 2);
      chr3 = ((enc3 & 3) << 6) | enc4;

      output = output + String.fromCharCode(chr1);

      if (enc3 != 64)
      {
         output = output + String.fromCharCode(chr2);
      }
      if (enc4 != 64)
      {
         output = output + String.fromCharCode(chr3);
      }
   } while (i < input.length);

   return output;
};

/**
 * \brief
 * Usuwa z numeru telefonu + i kod kierunkowy kraju
 */

function FlattenPhoneNumber(nr, countryCode)
{
    var retnr = "";
    for (var i = 0; i < nr.length; i++ )
        if (('0') <= nr[i] && nr[i] <= ('9'))
            retnr = retnr + nr[i];

    if (retnr.substring(0, countryCode.length) == countryCode)
    {
        retnr = retnr.substring(countryCode.length, retnr.length); ///< odrzucamy kod kraju na poczatku
    }

    return retnr;
};

/**
 * \brief
 * Funkcja konstruuje stringa który docelowo wysyłany jest w http post jako dane wypełnionego formularza.
 * Przykład:
 * Przerabia tablice: { "id", "2", "nr", "600123456" }
 * na stringa: id=2&nr=600123456
 */
function CreateHTTPRequestContent(requestArray)
{
    if (requestArray.length % 2 != 0)
    {
        return "";   ///< wymagamy tablicy klucz -> wartosc, tak wiec chcemy miec parzysta liczbe elementow
    }

    var retString = "";
    var cur = 0;
    while (cur < requestArray.length)
    {
        if (cur > 0)
        {
            retString += "&";
        }

        retString += requestArray[cur] + "=" + requestArray[cur + 1];
        cur += 2;
    }

    return retString;
};

/*
 * /brief
 * Funkcja konvertuje stringa do uinta
 */
function toInt(str)
{
    var i = 0;
    var ret = 0;
    var cyfry = "0123456789";
    var pos = 0;
    while (i < str.length)
    {
        pos = cyfry.search(str.substring(i, i+1));
        if (pos < 0)
            break;
        ret = 10 * ret + pos;
        i++;
    }
    return ret;
};