CREATE OR REPLACE PACKAGE demo_base64 IS
  FUNCTION encode(r IN RAW) RETURN VARCHAR2;
   end;


 
CREATE OR REPLACE 
PACKAGE BODY demo_base64 IS
   TYPE vc2_table IS TABLE OF VARCHAR2(1) INDEX BY BINARY_INTEGER;
    map vc2_table;
    PROCEDURE init_map IS
    BEGIN 
    map(0) :='A'; map(1) :='B'; map(2) :='C'; map(3) :='D'; map(4) :='E';
    map(5) :='F'; map(6) :='G'; map(7) :='H'; map(8) :='I'; map(9):='J';
    map(10):='K'; map(11):='L'; map(12):='M'; map(13):='N'; map(14):='O';
    map(15):='P'; map(16):='Q'; map(17):='R'; map(18):='S'; map(19):='T';
    map(20):='U'; map(21):='V'; map(22):='W'; map(23):='X'; map(24):='Y';
    map(25):='Z'; map(26):='a'; map(27):='b'; map(28):='c'; map(29):='d';
    map(30):='e'; map(31):='f'; map(32):='g'; map(33):='h'; map(34):='i';
    map(35):='j'; map(36):='k'; map(37):='l'; map(38):='m'; map(39):='n';
    map(40):='o'; map(41):='p'; map(42):='q'; map(43):='r'; map(44):='s';
    map(45):='t'; map(46):='u'; map(47):='v'; map(48):='w'; map(49):='x';
    map(50):='y'; map(51):='z'; map(52):='0'; map(53):='1'; map(54):='2';
    map(55):='3'; map(56):='4'; map(57):='5'; map(58):='6'; map(59):='7';
    map(60):='8'; map(61):='9'; map(62):='+'; map(63):='/';
    END;
    FUNCTION encode(r IN RAW) RETURN VARCHAR2 IS
    i pls_integer;
    x pls_integer;
    y pls_integer;
    v VARCHAR2(32767);
    BEGIN
    i := 1;
    WHILE ( i + 2 <= utl_raw.length(r) ) LOOP
    x := to_number(utl_raw.substr(r, i, 1), '0X') * 65536 +
    to_number(utl_raw.substr(r, i + 1, 1), '0X') * 256 +
    to_number(utl_raw.substr(r, i + 2, 1), '0X');
    y := floor(x / 262144); v := v || map(y); x := x - y * 262144;
    y := floor(x / 4096); v := v || map(y); x := x - y * 4096;
    y := floor(x / 64); v := v || map(y); x := x - y * 64; 
    v := v || map(x);
    i := i + 3;
    END LOOP;
    -- Process the remaining bytes that has fewer than 3 bytes.
    IF ( utl_raw.length(r) - i = 0) THEN
    x := to_number(utl_raw.substr(r, i, 1), '0X');
    y := floor(x / 4); v := v || map(y); x := x - y * 4;
    x := x * 16; v := v || map(x);
    v := v || '==';
    ELSIF ( utl_raw.length(r) - i = 1) THEN
    x := to_number(utl_raw.substr(r, i, 1), '0X') * 256 +
    to_number(utl_raw.substr(r, i + 1, 1), '0X');
    y := floor(x / 1024); v := v || map(y); x := x - y * 1024;
    y := floor(x / 16); v := v || map(y); x := x - y * 16;
    x := x * 4; v := v || map(x);
    v := v || '=';
    END IF;
    RETURN v;
    END;
    BEGIN
    init_map;
    END;



=============================================================================
CREATE OR REPLACE PROCEDURE sendmail(p_body  in long,  p_subject in varchar2)
is
  p_sender varchar2(30) := 'automail@wlcsp.com';
--  p_subject varchar2(50) := 'Test';
  mail_conn utl_smtp.connection;
  mail_host varchar2(100) := 'smtp.wlcsp.com';
  user_name varchar2(156) := 'automail@wlcsp.com';
  user_pwd  varchar2(156) := '1234qwer.';
  M_EMAIL   VARCHAR2(100);
  cursor CUR_Email is select email from e_mail_address   order by email;
begin


  mail_conn := utl_smtp.open_connection(mail_host, 25);
  utl_smtp.ehlo(mail_conn, mail_host);
  utl_smtp.command(mail_conn, 'AUTH LOGIN');
  utl_smtp.command(mail_conn, demo_base64.encode(utl_raw.cast_to_raw(user_name)));
  utl_smtp.command(mail_conn, demo_base64.encode(utl_raw.cast_to_raw(user_pwd)));
  --UTL_SMTP.command(mail_conn,UTL_RAW.cast_to_varchar2(UTL_ENCODE.base64_encode(UTL_RAW.cast_to_raw(user_name))));
  --UTL_SMTP.command(mail_conn,UTL_RAW.cast_to_varchar2(UTL_ENCODE.base64_encode(UTL_RAW.cast_to_raw(user_pwd))));
  utl_smtp.mail(mail_conn, '<' || p_sender || '>');




  OPEN cur_Email;
     LOOP
         FETCH  CUR_Email INTO M_EMAIL;
         EXIT WHEN CUR_Email%NOTFOUND;
         utl_smtp.rcpt(mail_conn, '<' || M_EMAIL || '>');
     END LOOP;
  CLOSE cur_Email;


  utl_smtp.open_data(mail_conn);
  utl_smtp.write_data(mail_conn,'Date:'|| TO_CHAR(SYSDATE, 'dd mon yy hh24:mi:ss') || utl_tcp.CRLF);
  utl_smtp.write_data(mail_conn, 'From:' || p_sender ||'<' || p_sender  || '>' || utl_tcp.CRLF);
  utl_smtp.write_data(mail_conn, 'To:'   || M_EMAIL  ||'<' || M_EMAIL   || '>' || utl_tcp.crlf);
  utl_smtp.write_raw_data(mail_conn, utl_raw.cast_to_raw(convert('Subject:' || p_subject || utl_tcp.CRLF, 'ZHS16GBK')));
  utl_smtp.write_raw_data(mail_conn, utl_raw.cast_to_raw(convert('Content-Type:text/html;charset=GBK' || utl_tcp.CRLF, 'ZHS16GBK')));
  utl_smtp.write_data(mail_conn, utl_tcp.CRLF);
  utl_smtp.write_raw_data(mail_conn, utl_raw.cast_to_raw(convert(p_body, 'ZHS16GBK')));
  utl_smtp.close_data(mail_conn);
  utl_smtp.quit(mail_conn);
exception
  when utl_smtp.transient_error or utl_smtp.permanent_error then
    utl_smtp.quit(mail_conn);
    raise_application_error(-20000, sqlerrm);
  when others then
    raise_application_error(-20001, 'The send mail was error ' || sqlerrm);
end sendmail;