techouse / mysql-to-sqlite3

Transfer data from MySQL to SQLite
https://techouse.github.io/mysql-to-sqlite3/
MIT License
221 stars 31 forks source link

Support for MySQL SSL options (`--mysql-ssl-cert`, `--mysql-ssl-key`, `--mysql-ssl-ca`) #77

Open frugan-dev opened 5 months ago

frugan-dev commented 5 months ago

Pull Request: Add MySQL SSL Options

Description

This pull request adds support for MySQL SSL options (--mysql-ssl-cert, --mysql-ssl-key, --mysql-ssl-ca), that allow users to specify the paths to SSL certificate, key, and CA certificate files when connecting to MySQL databases that require secure transport (--require_secure_transport=ON). This enhancement aims to address the issue where connections using insecure transport are prohibited due to MySQL server settings, e.g. when this error message appears:

ERROR 3159 (HY000): Connections using insecure transport are prohibited while --require_secure_transport=ON.

Type of change

How Has This Been Tested?

These changes have been tested locally by connecting to MySQL databases with --require_secure_transport=ON using the newly introduced SSL options.

Checklist:

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Walkthrough

The changes introduce new SSL configuration options for MySQL connections, enhancing security by allowing users to specify paths for SSL certificate, key, and CA certificate files. Additionally, a skip-ssl option is added to disable SSL encryption. These updates affect the CLI interface and the internal handling of MySQL connections in the codebase.

Changes

Files Change Summary
README.md, docs/README.rst Added documentation for new SSL options in MySQL connection settings.
src/mysql_to_sqlite3/cli.py Introduced CLI options for specifying paths to SSL certificate, key, and CA certificate files.
src/mysql_to_sqlite3/... Enhanced MySQL connection setup to handle new SSL parameters in transporter.py.

Sequence Diagram(s) (Beta)

sequenceDiagram
    participant User
    participant CLI
    participant Transporter
    participant MySQL

    User->>CLI: Provide SSL options (--mysql-ssl-cert, --mysql-ssl-key, --mysql-ssl-ca)
    CLI->>Transporter: Pass SSL options
    Transporter->>MySQL: Establish connection with SSL parameters
    MySQL-->>Transporter: Confirm connection
    Transporter-->>CLI: Notify successful connection
    CLI-->>User: Display connection status

Poem

In fields of code, where data flows, A rabbit hops, with SSL it shows. Certificates in paw, secure and bright, MySQL connections, safe in the night. Skip or secure, the choice is clear, With every hop, no need to fear.


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techouse commented 5 months ago

Thanks for your contribution. 💪

Can you please fix the linter errors and add some extra tests for this feature (if possible)?

frugan-dev commented 5 months ago

Hi @techouse, ok I'll try in the next few days, be patient but I'm new to Python..

frugan-dev commented 3 months ago

Hi @techouse, sorry for the delay, I fixed the linters errors and added new ssl tests. Here are some considerations:

1) I added tox.*.ini in the .gitignore file, because on my pc the mysql:latest image did not run (see https://github.com/docker-library/mysql/issues/1055) and I had to create a tox.override.ini file:

[testenv]
allowlist_externals = pytest
commands = pytest -v --cov=src/mysql_to_sqlite3 --cov-report=xml --docker-mysql-image=mysql:8-oraclelinux8

and run the tests this way:

tox -c tox.ini -c tox.override.ini

2) Locally I had to use a value of mysql_connection_retries: int = 50 here, as the default value was not sufficient; I have not committed the change, but perhaps it is a good idea to increase it, what do you think?

3) I captured the container logs here, because passing self-signed certificates to the container kept giving me the error Lost connection to MySQL server during query and I didn't understand why.. In the end I understood that it was just a permissions problem, which for now I solved like this, but maybe there is a more elegant solution (option user here?).

4) I added a random suffix to the name of the created containers to avoid errors like Conflict. The container name "/pytest_mysql_to_sqlite3" is already in use by container "xxx". You have to remove (or rename) that container to be able to reuse that name.").

Let me know if that works out!

techouse commented 3 months ago

Hi @frugan-dev

Looks like there are still some fundamental errors in your code.

You don't have to use tox to test it locally, running something like

pytest -v -x

should do the trick.

As for the Tox setup, please do not commit / git-track these changes as they are specific to your setup and do not reflect a wider problem.

codecov[bot] commented 3 months ago

Codecov Report

All modified and coverable lines are covered by tests :white_check_mark:

Project coverage is 86.05%. Comparing base (75bca3f) to head (0f23724).

Additional details and impacted files ```diff @@ Coverage Diff @@ ## master #77 +/- ## ========================================== + Coverage 85.85% 86.05% +0.19% ========================================== Files 8 8 Lines 629 638 +9 ========================================== + Hits 540 549 +9 Misses 89 89 ```

:umbrella: View full report in Codecov by Sentry.
:loudspeaker: Have feedback on the report? Share it here.

techouse commented 3 months ago

Locally I had to use a value of mysql_connection_retries: int = 50 here, as the default value was not sufficient; I have not committed the change, but perhaps it is a good idea to increase it, what do you think?

Hmm, this was never an issue before. Maybe it's SSL-specific. You can try to commit the change to 50 but that seems obscenely high to me.

frugan-dev commented 3 months ago

Looks like there are still some fundamental errors in your code.

Thanks, I made some fixes. Local testing with Docker works, but on GitHub there would be some adjustments to be made to support self-signed certificates.

As for the Tox setup, please do not commit / git-track these changes as they are specific to your setup and do not reflect a wider problem.

Sure, I only committed the .gitignore change, so as to allow the use of a tox.override.ini file locally.

techouse commented 3 months ago

Local testing with Docker works, but on GitHub there would be some adjustments to be made to support self-signed certificates.

Commit whatever you think is necessary to make the CI tests pass. :)

frugan-dev commented 3 months ago

Locally I had to use a value of mysql_connection_retries: int = 50 here, as the default value was not sufficient; I have not committed the change, but perhaps it is a good idea to increase it, what do you think?

Hmm, this was never an issue before. Maybe it's SSL-specific. You can try to commit the change to 50 but that seems obscenely high to me.

Actually on my PC it connects after about 20-25 attempts, but for now let's leave it like this, there's no problem.. I wouldn't want the increase to affect the execution time of the CI tests.

Local testing with Docker works, but on GitHub there would be some adjustments to be made to support self-signed certificates.

Commit whatever you think is necessary to make the CI tests pass. :)

Ok I'll take a look ASAP!