Encrypting/Decrypting mule
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1) The document discusses using base64 encoding and decoding transformers in Mule to encrypt and decrypt file payloads. 2) It provides an example Mule flow that uses a base64 encoder transformer to encrypt a file, and another flow using a base64 decoder transformer to decrypt the file back to its original contents. 3) The example demonstrates picking up a file, encrypting it with base64 encoding, writing it to a new location, then decrypting and writing the original file contents back with base64 decoding.
![Our corresponding Mule flow will be as follows :-
<flow name="encryptFlow1" doc:name="encryptFlow1">
<file:inbound-endpoint path="E:backuptest"
responseTimeout="10000" doc:name="File">
<file:filename-regex-filter pattern="abc.doc"
caseSensitive="false" />
</file:inbound-endpoint>
<base64-encoder-transformer encoding="utf8" />
<logger level="INFO" message="#[message.payloadAs(java.lang.String)]" />
<file:outbound-endpoint path="E:backuptestnewfolder"
responseTimeout="10000" doc:name="File" />
</flow>](https://image.slidesharecdn.com/encryptingmule-150324123625-conversion-gate01/85/Encrypting-Decrypting-mule-6-320.jpg)
Encrypting/Decrypting mule
- 1. By Anirban Sen Chowdhary
- 3. .
- 4. Fortunately we have base64-encoder-transformer and base64- decoder-transformer available in our Mule
- 5. So, to encrypt a payload in our Mule flow, we can use base64-encoder-transformer as follows :- As you can see we have used a file inbound to pick a file in our flow, and then we encrypt it with base64-encoder-transformer and the output of the flow will produce a encrypted file
- 6. Our corresponding Mule flow will be as follows :- <flow name="encryptFlow1" doc:name="encryptFlow1"> <file:inbound-endpoint path="E:backuptest" responseTimeout="10000" doc:name="File"> <file:filename-regex-filter pattern="abc.doc" caseSensitive="false" /> </file:inbound-endpoint> <base64-encoder-transformer encoding="utf8" /> <logger level="INFO" message="#[message.payloadAs(java.lang.String)]" /> <file:outbound-endpoint path="E:backuptestnewfolder" responseTimeout="10000" doc:name="File" /> </flow>
- 7. As you can see in the code it will pick a file called abc.doc from E:backuptest location , encrypt it and put the encrypted file to E:backuptestnewfolder So, let us place a file abc.doc in the source folder as follows :-
- 8. Let run our application and we can see, the file has been transferred to location E:backuptestnewfolder Now, this transferred file is an encrypted file
- 9. We can see our compressed file here in location E:backuptestnewfolder :-
- 10. Now if we open the file abc.doc in E:backuptestnewfolder we will find the content of the file is in encrypted form as follows:-
- 11. Now what about decrypting the file back to the original content ???
- 12. In case of decrypting a file back to original content ( content before the encryption) we will be using base64-decoder- transformer as follows:- As you can see, it will pick up the encrypted file abc.doc from the location E:backuptestnewfolder and put it into a new location E:backuptestoriginalFile
- 13. The corresponding our Mule flow will be :- <flow name="decrypt"> <file:inbound-endpoint path="E:backuptestnewfolder" responseTimeout="10000" doc:name="File"> <file:filename-regex-filter pattern="abc.doc" caseSensitive="false" /> </file:inbound-endpoint> <base64-decoder-transformer encoding="utf8" /> <file:outbound-endpoint path="E:backuptestoriginalFile" responseTimeout="10000" doc:name="File" /> </flow>
- 14. Now if we run the flow, we will get the following in our console :- The file has been decrypted back to it’s original content into the location E:backuptestoriginalFile
- 15. Now if we open the decrypted file we will get a normal content:-
- 16. Hope you enjoyed the tips of compressing and decompressing using base64-encoder-transformer/base64-decoder-transformer in Mule Next slide I will bring some more simple yet interesting topic