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Man-in-the-middle proxying for HTTPS.
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Man-in-the-middle proxy for HTTPS with SSL verification and connection pooling/keep-alive.

No Maintenance Intended Build Status


Braintree no longer uses or maintains this project. It remains available for research and derivative works, subject to the project's license.


$ npm -g install mallorca


$ mallorca \
  --cert /etc/ssl/certs/your-mallorca-proxy.crt \
  --key /etc/ssl/certs/your-mallorca-proxy.key \
  --port 5000 \
  --maxsockets 20 \
  --keepalive-socket-count 10 \
  --pidfile /var/run/ \
  --cacert /etc/ssl/certs/ca-root-for-externalsite.pem \


Ensure you have the following dependencies installed and in your PATH:

  • node (version > 0.10 should do)
  • npm

Then, you should be able to run the tests:

$ npm test

Finally, to launch Mallorca:

$ ./bin/mallorca YOUR OPTIONS HERE...

Reserved routes

The following routes are reserved for the operation of the Mallorca proxy, and are not proxied to the upstream web server.

GET /_mallorca/heartbeat

Indicates whether Mallorca can consistently maintain its connection to the upstream server. A response code of 200 indicates a healthy connection, 503 indicates connection problems.

PUT /_mallorca/connection_pool

Enables changing connection pool settings without having to restart Mallorca. Accepts a payload of either a JSON object or form encoded key-values:

max - Maximum number of connections to the upstream server

keepalive - Number of connections to keep open when no more requests are queued

GET /_mallorca/uncaught_error

Simulates an internal error within the Mallorca proxy, does not respond. You must have set the allow-error-routes command line switch to use this route.

GET /_mallorca/stat

Provides statistics for the connection pool and latencies of recent requests to the upstream server.


  1. Fork it
  2. Create your feature branch (git checkout -b my-new-feature)
  3. Commit your changes (git commit -am 'Added some feature')
  4. Push to the branch (git push origin my-new-feature)
  5. Create new Pull Request
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