Sublime Text plugin for editing emails in Thunderbird/exteditor; it unmangles MS Outlook safelinks and wraps quotes

unmangle_safelinks.py

import re
import sublime  # https://www.sublimetext.com/docs/3/api_reference.html
import sublime_plugin
import textwrap
import urllib

# 

def unsafe_links(content):
    """remove annoying outlook link protection
    """

    RE_SAFELINK = re.compile(
        r"""
        (https://na\d\d\.safelinks.+\?url=)     # MS link
        (.+)                                    # encoded URL
        (&data=.*?&reserved=0)                  # closing cruft
        """,
        re.VERBOSE,
    )
    for match in RE_SAFELINK.finditer(content):
        # print("match = '%s'" % (match))
        safe_url = match.group(0)
        # print("safe_url = '%s'" % (safe_url))
        encoded_url = match.groups()[1]
        # print("encoded_url = '%s'" % (encoded_url))
        decoded_url = urllib.parse.unquote(encoded_url)
        # print("decoded_url = '%s'" % (decoded_url))
        content = content.replace(safe_url, decoded_url)
    return content


def format_email(content):
    """ find long quoted lines and wrap; collapse empty lines
    """

    new_content = []
    for line in content.split('\n'):
        if line.startswith('>'):
            line = textwrap.fill(line, 70).strip()
            if not line.isspace():
                line = line.replace('\n', '\n> ')
        new_content.append(line)
    new_content = '\n'.join(new_content)
    new_content = re.sub(r'\n\s*\n', '\n\n', new_content)  # collapse empty
    return(new_content)


class UnmangleSafelinks(sublime_plugin.TextCommand):
    def run(self, edit):
        # print("=====================================")
        region = sublime.Region(0, self.view.size())
        text = self.view.substr(region)
        # print("text = '%s'" % (text))
        unsafe_text = unsafe_links(text)
        # print("unsafe_text = '%s'" % (unsafe_text))
        formatted_text = format_email(unsafe_text)
        # print("formatted_text = '%s'" % (formatted_text))
        self.view.replace(edit, region, formatted_text)
        self.view.run_command("goto_line", {"line": 7})