WebBase64Encode Function

Action

Converts unsigned binary input into ASCII-encoded, printable characters.

注: This function is obsolete. It can still be used, although it's recommended to use the WebBase64EncodeEx function instead.

Include file

WebAPI.bdh

Syntax

WebBase64Encode( out sTarget    :string,
                 in  nMaxTarget : number,
                 out nLenTarget : number,
                 in  sSource    : string,
                 in  nSourceLen : number optional ): boolean;

Return value

true if the encoding was successful
false otherwise

Parameter	Description
sTarget	String variable to receive the encoded string.
nMaxTarget	Maximum number of characters to write into sTarget.
nLenTarget	Parameter receiving the number of characters in sTarget after successful encoding.
sSource	Source data to encode. This can also be binary data.
nSourceLen	Length in bytes of the source data (optional). Specifiy STRING_COMPLETE or omit this parameter to encode all available data.

For example, the string "testuser:testpass" is converted to "dGVzdHVzZXI6dGVzdHBhc3M=". Binary data can also be encoded in order to transport it safely over a 7-bit transport environment.

注: The data size increases by 30% due to the encoding.

Example

dcltrans
  transaction TWebOwnAuthHeader
  var
    sUserPass : string;
    nUserPassLen : number;
  begin
    // Build your own authentication header
    WebBase64Encode(sUserPass, 200, nUserPassLen,
      "smith:paranoia{}[]~^");

    sUserPass := "Basic " + sUserPass;

    WebHeaderAdd("Authorization", sUserPass);
    WebUrl("http://standardhost/", 0.0);
  end TWebOwnAuthHeader;

Sample scripts

WebEncoding01.bdf, WebForms02.bdf