dojox/encoding/base64.js

• Provides:

  • dojox.encoding.base64

• dojox.encoding.base64.encode

  • type

    Function

  • parameters:
    • ba: (typeof byte[])
  • source: [view]
    // AMD-ID "dojox/encoding/base64"
    define(["dojo", "dojox"], function(dojo, dojox) {
    dojo.getObject("encoding.base64", true, dojox);
    
    
    (function(){
     var p="=";
     var tab="ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/";
     var dxe=dojox.encoding;
    
    
     dxe.base64.encode=function(/* byte[] */ba){
      // summary
      // Encode an array of bytes as a base64-encoded string
      var s=[], l=ba.length;
      var rm=l%3;
      var x=l-rm;
      for (var i=0; i   var t=ba[i++]<<16|ba[i++]<<8|ba[i++];
       s.push(tab.charAt((t>>>18)&0x3f));
       s.push(tab.charAt((t>>>12)&0x3f));
       s.push(tab.charAt((t>>>6)&0x3f));
       s.push(tab.charAt(t&0x3f));
      }
      // deal with trailers, based on patch from Peter Wood.
      switch(rm){
       case 2:{
        var t=ba[i++]<<16|ba[i++]<<8;
        s.push(tab.charAt((t>>>18)&0x3f));
        s.push(tab.charAt((t>>>12)&0x3f));
        s.push(tab.charAt((t>>>6)&0x3f));
        s.push(p);
        break;
       }
       case 1:{
        var t=ba[i++]<<16;
        s.push(tab.charAt((t>>>18)&0x3f));
        s.push(tab.charAt((t>>>12)&0x3f));
        s.push(p);
        s.push(p);
        break;
       }
      }
      return s.join(""); // string
  • returns

    string

  • summary

• dojox.encoding.base64.decode

  • type

    Function

  • parameters:
    • str: (typeof string)
  • source: [view]
    // AMD-ID "dojox/encoding/base64"
    define(["dojo", "dojox"], function(dojo, dojox) {
    dojo.getObject("encoding.base64", true, dojox);
    
    
    (function(){
     var p="=";
     var tab="ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/";
     var dxe=dojox.encoding;
    
    
     dxe.base64.encode=function(/* byte[] */ba){
      // summary
      // Encode an array of bytes as a base64-encoded string
      var s=[], l=ba.length;
      var rm=l%3;
      var x=l-rm;
      for (var i=0; i   var t=ba[i++]<<16|ba[i++]<<8|ba[i++];
       s.push(tab.charAt((t>>>18)&0x3f));
       s.push(tab.charAt((t>>>12)&0x3f));
       s.push(tab.charAt((t>>>6)&0x3f));
       s.push(tab.charAt(t&0x3f));
      }
      // deal with trailers, based on patch from Peter Wood.
      switch(rm){
       case 2:{
        var t=ba[i++]<<16|ba[i++]<<8;
        s.push(tab.charAt((t>>>18)&0x3f));
        s.push(tab.charAt((t>>>12)&0x3f));
        s.push(tab.charAt((t>>>6)&0x3f));
        s.push(p);
        break;
       }
       case 1:{
        var t=ba[i++]<<16;
        s.push(tab.charAt((t>>>18)&0x3f));
        s.push(tab.charAt((t>>>12)&0x3f));
        s.push(p);
        s.push(p);
        break;
       }
      }
      return s.join(""); // string
     };
    
    
     dxe.base64.decode=function(/* string */str){
      // summary
      // Convert a base64-encoded string to an array of bytes
      var s=str.split(""), out=[];
      var l=s.length;
      while(s[--l]==p){ } // strip off trailing padding
      for (var i=0; i   var t=tab.indexOf(s[i++])<<18;
       if(i<=l){ t|=tab.indexOf(s[i++])<<12 };
       if(i<=l){ t|=tab.indexOf(s[i++])<<6 };
       if(i<=l){ t|=tab.indexOf(s[i++]) };
       out.push((t>>>16)&0xff);
       out.push((t>>>8)&0xff);
       out.push(t&0xff);
      }
      // strip off any null bytes
      while(out[out.length-1]==0){ out.pop(); }
      return out; // byte[]
  • returns

    string|byte[]

  • summary

• dojox.encoding.base64

  • type

    Object

  • summary

• dojox.encoding

  • type

    Object

  • summary

• dojox

  • type

    Object

  • summary