Encode and Decode Base64

[Former Member]

Hi All,

I need to Encode and Decode Base64 File.

Please let me know if there is any Function Modules or Class Methods to achieve the requirement.

Thanks in advance.

Regards

Joseph

Message was edited by: Joseph Brown

[Former Member]

Encoding: To encode a string to Base64 format, you can first convert the string to Xstring using the function module SCMS_STRING_TO_XSTRING, and then use the function module SCMS_BASE64_ENCODE_STR to convert the Xstring to Base64.

Decoding: To decode a Base64 string, you can use a three-step procedure. First, convert the Base64 string to Xstring using the function module SCMS_BASE64_DECODE_STR. Next, transform the Xstring to Binary using the function module SCMS_XSTRING_TO_BINARY. Finally, turn the Binary format to String via the function module SCMS_BINARY_TO_STRING.

[Former Member]

I found two comment for you :

1- Take a look this FM

SCMS_BASE64_ENCODE

HTTP_BASE64_ENCODE

SSFC_BASE64_CODE

2-Have look at this for Base64 encoding decoding sample check http://makcoder.sourceforge.net/demo/base64.php

P.S. This knowledges quotationed.

[Former Member]

Hi Joseph,

You can use this to decode a base64 string:

DATA: utility TYPE REF TO cl_http_utility.
      CREATE OBJECT utility.

      CALL METHOD utility->decode_base64
        EXPORTING
          encoded = mysapsso2
        RECEIVING
          decoded = cookie.

Regards,

Ravikiran.

PS: Pls assign points for helpful replies.

[Former Member]

Hi,

This is the encoded base64 file in XML format:

<?xml version="1.0" encoding="UTF-8"?>

<Z_CREFO_DOC>

<E_PDF><![CDATA[JVBERi0xLjMKJcfsj6IKNSAwIG9iago8PC9MZW5ndGggNiAwIFIvRmlsdGVyIC9GbGF0ZURlY29k

ZT4+CnN0cmVhbQp4nE2MPQ/CMAxEd/8Kj/aQEKehIWvFh8QElTfEVNFOGUr7/0UagcTd8vSkuxmd

FY9u6wGDLs4rRA1dhfvvCeYIaDbbZU8c9Dxk7LMGG50RGkWsHobExpj7F1NjhBzfCgG5tAR/Z0

5pYMN6Qs9OJACxuhlY0n5Kde4aRwL/0A6e4hnWVuZHN0cmVhbQplbmRvYmoKNiAwIG9iagoxMzEK

ZW5kb2JqCjQgMCBvYmoKPDwvVHlwZS9QYWdlL01lZGlhQm94IFswIDAgNTk1LjIyIDg0Ml0KL1Jv

dGF0ZSAwL1BhcmVudCAzIDAgUgovUmVzb3VyY2VzPDwvUHJvY1NldFsvUERGIC9UZXh0XQovRXh0

R1N0YXRlIDEwIDAgUgovRm9udCAxMSAwIFIKPj4KL0NvbnRlbnRzIDUgMCBSCj4+CmVuZG9iagoz

IDAgb2JqCjw8IC9UeXBlIC9QYWdlcyAvS2lkcyBbCjQgMCBSCl0gL0NvdW50IDEKL1JvdGF0ZSAw

Pj4KZW5kb2JqCjEgMCBvYmoKPDwvVHlwZSAvQ2F0YWxvZyAvUGFnZXMgMyAwIFIKPj4KZW5kb2Jq

CjcgMCBvYmoKPDwvVHlwZS9FeHRHU3RhdGUKL09QTSAxPj5lbmRvYmoKMTAgMCBvYmoKPDwvUjcK

NyAwIFIPgplbmRvYmoKMTEgMCBvYmoKPDwvUjkKOSAwIFIPgplbmRvYmoKMTIgMCBvYmoKPDwv

U3VidHlwZS9UeXBlMUMvRmlsdGVyL0ZsYXRlRGVjb2RlL0xlbmd0aCAxMyAwIFI+PnN0cmVhbQp4

nGWSbUxTVxiAz23h3jtX60bTGAKWm2w4FUjAwLRiMAZkP0bQsYIY2UaBK97Zr/UD2lGghVYoR0BB

ELJSaEEbDfAj7llOmUiFnWbxs0Moxkm25FfRBN3ksuydaybPuxPyfvOe953yfneQ+BYkSIIAiJ

itOyprQivVati5TASCTxTxm8TYubJ3ZVvsJlQwIF6PJWIsiRlKjNHGwaOX4dYGuPISEhPE9J0n

uXqDzchVHzUzW4qLDm5NSUn97yRDqVQyFbZ/Mkwea+KqdczmSFDDavQGLaszZzO5kdsaDVfJVGts

hqMmRl1VxVZFy0rUGvYYk89pOINBX8Nsyd3KbE9Pz0iLLNuzmUKLljXqUxlOd4TTcWYbo9ZVMfu1

bLWa0aqr2GiDPC1nNtqYzHRO9291IaetsJiYtRczhXolU8AUsdUWjdr4/wxC6AU270C+yaxi0hDK

R8koA72GVKgYZSECSdG6iEQUgyrRE0JF3BCViSZFq6I/xRugQ8ofcN4DXRCoSYJPhZ3yw3vKdW/i

Ilw+rpu1TbtCnjANYbL5rnPcGNROvjN0EB/CZTaWK6sw5GElLSgeZAH1y8M5QJcUwgKkynsXPp4K

4zAe1vdl0tKVI9hnneIXp6y+uGfLPAnERpn3GRBynNvYsOc4baVkGpgigcbPQ/M37s5N/YSX8M/a

BdVXb9wTiElhE6ZlXiFgJR5TjfhvfRySC7TnOvtvvj0bh33hWKhGIWFhAW1lXs2FVWqnurMRPT

lY2ng0lS/jr2gf8CXI2if1Guih6Cd6Fy/KzHm/bWbyAZ3oHb4VnAzjr/Gl+mnDeOXlzLG0CPCx

4LWS3zf3OHEuvbqPwjuanXtctBVCPmp3h70ff0fzNTGypdGurlFImC97dduBQwJVW3i3az4Gxu

HAQsqYj4NWN8qe8yaok4PdTDVm2zZmBaSwUiOnTw1qoBEEmKx37NoEdI2VIrvBK7OhZhu/vq

8b419k7HmqYoO6ezvh8/oEEHydRj7LWf2UVLXinv26Izxhs8Md9OQ/KxG98C18I5eltkBirIP0

eJpcbW0tON6Nne2OkxGb3RZL5wcJu4tKc98OVi4eTrr5/ie1XhPWxL93TF/Kafr8VkXNSFOgYZau

I2UFQnof1dXT2X4Gn8b9noA70sA9NtoykPDDnZv3r5pC+yeTBHRH/5F9BI/GXzg39vnsBLc9oJDC

Oec1XhIk7v8ohm6RL4ZaLKnrcOtcDW5m1xOVlVuK7F4XK78HHcesLT4aGvCzPkjonyuSvTw9dC

iobeGuOHTguOP2IfvZ0E5/+gpDxgH//rJQK6lsXQtYLkq60Uft3h2Bn185mPUnbW90Vn0z1DAYn9

toAgoodJNTEroZJt5ATO0wOAxHwQQympZGvD0h5DZxHnrkBdB2m5LWDvIlg6AaJCfWLb440S2R

LA5I1iP0F03p+8AKZW5kc3RyZWFtCmVuZG9iagoxMyAwIG9iagoxMDk1CmVuZG9iago5IDAgb2Jq

Cjw8L0Jhc2VGb250L1FaSEJGVCtUaW1lcy1Sb21hbi9Gb250RGVzY3JpcHRvciA4IDAgUi9UeXBl

L0ZvbnQKL0ZpcnN0Q2hhciAzMi9MYXN0Q2hhciAxMTYvV2lkdGhzWwoyNTAgMCAwIDAgMCAwIDAg

MCAwIDAgMCAwIDAgMzMzIDAgMAowIDAgMCAwIDAgMCAwIDAgMCAwIDAgMCAwIDAgMCAwCjAgMCAw

IDAgNzIyIDAgNTU2IDAgMCAwIDAgMCAwIDAgMCAwCjU1NiAwIDAgMCA2MTEgMCAwIDAgMCAwIDAg

MCAwIDAgMCAwCjAgMCAwIDAgMCA0NDQgMCAwIDAgMCAwIDAgMCAwIDAgMAowIDAgMCAzODkgMjc4

XQovRW5jb2RpbmcvV2luQW5zaUVuY29kaW5nL1N1YnR5cGUvVHlwZTE+PgplbmRvYmoKOCAwIG9i

ago8PC9UeXBlL0ZvbnREZXNjcmlwdG9yL0ZvbnROYW1lL1FaSEJGVCtUaW1lcy1Sb21hbi9Gb250

QkJveFswIC0xMCA2ODUgNjYyXS9GbGFncyA0Ci9Bc2NlbnQgNjYyCi9DYXBIZWlnaHQgNjYyCi9E

ZXNjZW50IC0xMAovSXRhbGljQW5nbGUgMAovU3RlbVYgMTAyCi9NaXNzaW5nV2lkdGggMjUwCi9D

aGFyU2V0KC9lL0QvUC9GL3MvdC9UL3NwYWNlL2h5cGhlbikvRm9udEZpbGUzIDEyIDAgUj4+CmVu

ZG9iagoyIDAgb2JqCjw8L1Byb2R1Y2VyKEdQTCBHaG9zdHNjcmlwdCA4LjE1KQovQ3JlYXRpb25E

YXRlKEQ6MjAwNjAzMjExMjExMTYpCi9Nb2REYXRlKEQ6MjAwNjAzMjExMjExMTYpCi9UaXRsZShN

aWNyb3NvZnQgV29yZCAtIERva3VtZW50MSkKL0NyZWF0b3IoUFNjcmlwdDUuZGxsIFZlcnNpb24g

NS4yKQovQXV0aG9yKG11ZWxsZXJoKT4+ZW5kb2JqCnhyZWYKMCAxNAowMDAwMDAwMDAwIDY1NTM1

IGYgCjAwMDAwMDA0NjYgMDAwMDAgbiAKMDAwMDAwMjM5OSAwMDAwMCBuIAowMDAwMDAwMzk4IDAw

MDAwIG4gCjAwMDAwMDAyMzUgMDAwMDAgbiAKMDAwMDAwMDAxNSAwMDAwMCBuIAowMDAwMDAwMjE2

IDAwMDAwIG4gCjAwMDAwMDA1MTQgMDAwMDAgbiAKMDAwMDAwMjE2MCAwMDAwMCBuIAowMDAwMDAx

ODE3IDAwMDAwIG4gCjAwMDAwMDA1NTUgMDAwMDAgbiAKMDAwMDAwMDU4NSAwMDAwMCBuIAowMDAw

MDAwNjE1IDAwMDAwIG4gCjAwMDAwMDE3OTYgMDAwMDAgbiAKdHJhaWxlcgo8PCAvU2l6ZSAxNCAv

Um9vdCAxIDAgUiAvSW5mbyAyIDAgUgovSUQgWyityXEclVXSeoKdpGR5FFwppSkorclxHJVV0nqC

naRkeRRcKaUpXQo+PgpzdGFydHhyZWYKMjU5NgolJUVPRgo=]]>

</E_PDF>

<C_ERROR></C_ERROR>

</Z_CREFO_DOC>

Can i pass all these characters or i need to transform it first, extract the value of the element and decode? Finally i need to write the decoded outcome to a file (a pdf file) to the hard drive (may be with: OPEN DATASET P_DATASET FOR INPUT IN TEXT MODE ENCODING DEFAULT)

**************************************************

I saw this hint but I think there should be more to it (eg. transformation of the initial decoded xml file and the writing it to hard drive using the Open Dataset for Input...):

****************being of report *************************

DATA: z TYPE string,

encode TYPE string,

decode TYPE string .

DATA: obj TYPE REF TO cl_http_utility,

cref TYPE REF TO if_http_utility.

CREATE OBJECT : obj.

cref = obj.

z = 'what u have to encode'.

encode = obj->if_http_utility~encode_base64( z ) .

decode = obj->if_http_utility~decode_base64( encode ).

****************end of report ***************************

What do i need more to the above report

[athavanraja]

you need to parse the xml and take the contents betwee <E_PDF> and </E_PDF> and pass the same to the method.

by the way the decode method is a static method so you dont need the create object call.

CALL METHOD cl_http_utility=>IF_HTTP_UTILITY~DECODE_BASE64

EXPORTING

encoded = encoded

RECEIVING

decoded = decoded.

Regards

Raja

[Former Member]

Hi,

I passed the xml through DOM and got the value for the pdf which corresponds to the characters from 'J' to '='.

I then applied SM69 to wrap up my Java Application and passed the value and the pdf filename as parameters; this architecture worked for me.

Seems the IF_HTTP_UTILITY class works when the xml file is encoded using:

encode = obj->if_http_utility~encode_base64( z ) .

and decoded using:

decode = obj->if_http_utility~decode_base64( encode ).

Regards,

Jospeh

[former_member400705]

Hi i have the inverse situation.

i have a file in pdf format and i need to convert in Base64.

can anyone help me?

SSFC_BASE64_CODE how this FM works?

i tried on SE37 but i did not understand.

[Former Member]

hello Durai,

After I decode as said by you, how do I archive it in SAP against an invoice?. I dont want a file to be archived by using the file path, instead I would want to directly archive the decoded message.

Best regards

[Former Member]

HI Durai,

               Am able to encode my value using your code, when am trying to decode the encoded value am not getting correct value,  please check my code and  help me to solve this .

i_part = ''2000002.

    CALL METHOD cl_http_utility=>if_http_utility~decode_base64

      EXPORTING

        encoded = i_part

     RECEIVING

       decoded = i_part1.

after encoding my i_part value is

i_part1 = ÓM4ÓM4.

decoding my encoded value

CALL METHOD cl_http_utility=>if_http_utility~encode_base64

       EXPORTING

         unencoded = i_part1

       RECEIVING

         encoded   = i_part2.

i_part2 = 000000.

[Former Member]

This message was moderated.

[former_member194739]

Prepare new thread.

Regards,

Abbas.

[alagon]

Encoding: To encode a string to Base64 format, you can first convert the string to Xstring using the function module SCMS_STRING_TO_XSTRING, and then use the function module SCMS_BASE64_ENCODE_STR to convert the Xstring to Base64.

Decoding: To decode a Base64 string, you can use a three-step procedure. First, convert the Base64 string to Xstring using the function module SCMS_BASE64_DECODE_STR. Next, transform the Xstring to Binary using the function module SCMS_XSTRING_TO_BINARY. Finally, turn the Binary format to String via the function module SCMS_BINARY_TO_STRING.

[Sandra_Rossi]

Quite complex solution. You can do it in one call only, for decode and encode. See other places in forum.