What's New in Oracle Unwrapper 1.1.58? A Comprehensive Review
Oracle Unwrapper 1.1.58: How to Extract Source Code from Wrapped PL/SQL Modules
If you have ever encountered a wrapped PL/SQL module in Oracle Database, you might have wondered how to get the original source code back. Wrapping is a technique that obfuscates the PL/SQL code to protect it from unauthorized access or modification. However, sometimes you might need to unwrap the code for debugging, reverse engineering, or migration purposes.
oracle unwrapper 1.1.58
Fortunately, there are some tools that can help you unwrap PL/SQL code wrapped with the wrap utility of the Oracle Database Server version 10g, 11g, 12c, 18c or 19c. One of them is Oracle Unwrapper 1.1.58, a Python script that can decrypt and decompress wrapped PL/SQL modules and restore the source code.
How to Use Oracle Unwrapper 1.1.58
To use Oracle Unwrapper 1.1.58, you need to have Python 3 installed on your system. You also need to download the unwrap.py file from this GitHub repository. Then, you can run the script from the command line as follows:
python unwrap.py <input_file> <output_file>
The input_file is the name of the file that contains the wrapped PL/SQL code. The output_file is the name of the file where the unwrapped PL/SQL code will be written. For example:
python unwrap.py wrapped_pkg.pkb unwrapped_pkg.pkb
This will unwrap the package body stored in wrapped_pkg.pkb and write the source code to unwrapped_pkg.pkb.
Limitations and Alternatives of Oracle Unwrapper 1.1.58
Oracle Unwrapper 1.1.58 is a useful tool for unwrapping PL/SQL code, but it has some limitations and drawbacks. For instance:
It does not preserve comments or formatting of the original code.
It does not handle errors or exceptions gracefully.
It does not support wrapping formats other than those used by Oracle Database Server.
It does not have a graphical user interface or a plugin for any IDE.
If you are looking for alternatives to Oracle Unwrapper 1.1.58, you might want to check out these options:
PL/SQL Unwrapper for SQL Developer: A free extension for Oracle SQL Developer that can unwrap PL/SQL code with a simple right-click menu option.
Unwrap.java: A Java program that can unwrap PL/SQL code by using a simple algorithm based on a character map.
UnwrapIt: A web-based tool that can unwrap PL/SQL code by using a server-side script.
Why Unwrap PL/SQL Code?
There are several reasons why you might want to unwrap PL/SQL code. Some of them are:
You need to debug or troubleshoot a wrapped PL/SQL module that is causing errors or performance issues.
You need to reverse engineer a wrapped PL/SQL module to understand its logic or functionality.
You need to migrate a wrapped PL/SQL module to another database platform or version that does not support wrapping.
You need to modify or enhance a wrapped PL/SQL module to meet new requirements or specifications.
You need to recover a wrapped PL/SQL module that has been lost or corrupted.
However, unwrapping PL/SQL code should be done with caution and respect for the intellectual property rights of the original developer. You should only unwrap PL/SQL code that you have the permission or the legal right to do so. You should also avoid unwrapping PL/SQL code that contains sensitive or confidential information that could compromise the security or privacy of the data or the system.
Best Practices for Unwrapping PL/SQL Code
Unwrapping PL/SQL code is not a trivial task and it requires some skills and knowledge. Here are some best practices that can help you unwrap PL/SQL code successfully and safely:
Before unwrapping PL/SQL code, make sure you have a backup copy of the original wrapped code and the database schema.
After unwrapping PL/SQL code, compare the unwrapped code with the wrapped code to verify that they are functionally equivalent and that no errors or changes have been introduced.
After unwrapping PL/SQL code, test the unwrapped code thoroughly in a development or testing environment before deploying it to production.
After unwrapping PL/SQL code, document the unwrapped code and the changes made to it, and keep track of the version and the source of the unwrapped code.
After unwrapping PL/SQL code, respect the intellectual property rights of the original developer and do not distribute or share the unwrapped code without their consent.
How to Unwrap Bulk PL/SQL Packages
If you have a large number of wrapped PL/SQL packages that you need to unwrap, you might find it tedious and time-consuming to unwrap them one by one. In that case, you can use some scripts or tools that can automate the unwrapping process for you. For example:
You can use a batch file that loops through all the wrapped packages in a folder and calls the unwrap.py script for each of them. You can find an example of such a batch file here.
You can use a Java program that reads the wrapped packages from a database and writes the unwrapped code to a file or another database. You can find an example of such a Java program here.
You can use a web-based tool that allows you to upload multiple wrapped packages and download the unwrapped code as a zip file. You can find an example of such a web-based tool here.
How to Wrap PL/SQL Code
On the other hand, if you want to wrap your PL/SQL code to protect it from unauthorized access or modification, you can use the wrap utility that comes with the Oracle Database Server. The wrap utility is a command-line tool that takes an input file containing PL/SQL code and produces an output file containing wrapped PL/SQL code. The syntax of the wrap utility is as follows:
wrap iname=<input_file> oname=<output_file>
The input_file is the name of the file that contains the PL/SQL code to be wrapped. The output_file is the name of the file where the wrapped PL/SQL code will be written. For example:
wrap iname=my_pkg.pkb oname=my_pkg.plb
This will wrap the package body stored in my_pkg.pkb and write the wrapped code to my_pkg.plb.
What is Oracle Unwrapper 1.1.58
Oracle Unwrapper 1.1.58 is a free tool that can unwrap PL/SQL code wrapped with the wrap utility of the Oracle Database Server version 10g, 11g, 12c, 18c or 19c. It is developed by Trivadis and it is available as a plugin for SQL Developer or as a standalone Java application.
Oracle Unwrapper 1.1.58 can unwrap any valid wrapped PL/SQL code, including packages, procedures, functions, triggers, types and anonymous blocks. It can also handle multiple wrapped PL/SQL units in a single file. It can preserve the original formatting and comments of the unwrapped code, or it can format the code according to user-defined preferences.
How to Use Oracle Unwrapper 1.1.58
To use Oracle Unwrapper 1.1.58 as a plugin for SQL Developer, you need to download the jar file from here and copy it to the dropins folder of your SQL Developer installation. Then restart SQL Developer and you will see a new menu item called "Unwrap PL/SQL" under the Tools menu.
To use Oracle Unwrapper 1.1.58 as a standalone Java application, you need to download the zip file from here and extract it to a folder of your choice. Then run the unwrapper.bat file (for Windows) or the unwrapper.sh file (for Linux) and you will see a graphical user interface where you can select the input file, the output file and the formatting options.
In both cases, you can unwrap PL/SQL code by selecting the wrapped code in the editor or in the file browser and choosing the "Unwrap PL/SQL" option from the menu or the context menu. You can also drag and drop files or folders containing wrapped PL/SQL code to the unwrapper window.
Why Use Oracle Unwrapper 1.1.58
Oracle Unwrapper 1.1.58 can be useful for several scenarios, such as:
You need to debug or troubleshoot a wrapped PL/SQL code that is causing errors or performance issues.
You need to modify or enhance a wrapped PL/SQL code that was developed by someone else who is no longer available or who did not provide the source code.
You need to migrate or upgrade a wrapped PL/SQL code to a newer version of Oracle Database Server that has different wrapping algorithms or features.
You need to audit or review a wrapped PL/SQL code for security or quality purposes.
You need to learn or understand how a wrapped PL/SQL code works or what it does.
Limitations and Risks of Oracle Unwrapper 1.1.58
Oracle Unwrapper 1.1.58 is not an official product of Oracle Corporation and it is not supported or endorsed by Oracle Corporation. It is provided as-is and without any warranty or liability. Use it at your own risk and responsibility.
Oracle Unwrapper 1.1.58 may not be able to unwrap some PL/SQL codes that are wrapped with custom or modified wrapping algorithms or tools. It may also produce incorrect or incomplete results if the wrapped PL/SQL code is corrupted or malformed.
Oracle Unwrapper 1.1.58 may violate the intellectual property rights or the confidentiality agreements of the original developers or owners of the wrapped PL/SQL code. It may also expose sensitive or proprietary information that was hidden or protected by the wrapping process. You should only use Oracle Unwrapper 1.1.58 with permission and authorization from the original developers or owners of the wrapped PL/SQL code.
Conclusion
Oracle Unwrapper 1.1.58 is a free and handy tool that can unwrap PL/SQL code wrapped with the wrap utility of the Oracle Database Server version 10g, 11g, 12c, 18c or 19c. It can help you to debug, modify, migrate, audit or learn wrapped PL/SQL code in various situations. However, you should be aware of its limitations and risks and use it with caution and respect for the original developers or owners of the wrapped PL/SQL code. b99f773239
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