Request file support

[jtof-fap]

Hey ! back to the pull requests, it's been a long time.

Several improvements on the program core :

• First commit to display the command as a string instead of a list (with native shlex.join() call) when the curl command is show on stdout;

• The second commit to add the request file support with -R, --request option, like -r option of sqlmap. In this case, the request protocol can't be guessed from file, so http by default or https if --request-tls option is present. You can now easily BUP an authenticated POST request. Copy/paste your Burp request in a file and let's go !

• The third commit solves a bug in the resolution of absolute filenames when the program loads payload files. You can now call bypass_url_parser from anywhere, even with a symbolic link. :-)

• The fourth commit reduces HTTP error warnings to the debug level instead of the verbose level;

• The fifth commit to parse the HTTP version in request file (missing in second commit);

• The last commit adds an internal/external notion for absolute path resolution. Ex: payload files => internal, absolute resolution from the project directory (useful to call the tool from anywhere) VS request file => external absolute resolution from the file directory.

:-)

[jtof-fap]

No change on bypass methods or payloads so no difference between bup-payloads-2023-04-18.lst file with previous version:

$ git diff --no-index tests-history/bup-payloads-2022-11-21.lst tests-history/bup-payloads-2023-04-18.lst

[laluka]

Went through the code, went through the tests, that's flawless work, let's merge it quick! 🌹