openNAMU__openNAMU/route/view_diff_data.py

from .tool.func import *

def view_diff_data_2(conn, name):
    curs = conn.cursor()

    if acl_check(name, 'render') == 1:
        return re_error('/ban')

    first = number_check(flask.request.args.get('first', '1'))
    second = number_check(flask.request.args.get('second', '1'))

    curs.execute(db_change("select title from history where title = ? and (id = ? or id = ?) and hide = 'O'"), [name, first, second])
    if curs.fetchall() and admin_check(6) != 1:
        return re_error('/error/3')

    curs.execute(db_change("select data from history where id = ? and title = ?"), [first, name])
    first_raw_data = curs.fetchall()
        
    curs.execute(db_change("select data from history where id = ? and title = ?"), [second, name])
    second_raw_data = curs.fetchall()
    if first_raw_data and second_raw_data:
        first_raw_data = first_raw_data[0][0].replace('\r', '')
        second_raw_data = second_raw_data[0][0].replace('\r', '')

        if first_raw_data == second_raw_data:
            result = ''
        else:
            i = 1
            change_count = 0
            diff_data = diff_match_patch().diff_prettyHtml(
                diff_match_patch().diff_main(first_raw_data, second_raw_data)
            )
            end_data = ''

            diff_data = diff_data.replace('&para;<br>', '\n')
            diff_data = diff_data.replace('<span>', '')
            diff_data = diff_data.replace('</span>', '')
            
            re_data = re.findall(r'(?:(?:(?:(?!\n).)*)(?:\n)|(?:(?:(?!\n).)+)$)', diff_data)
            for re_in_data in re_data:
                change_find_start = len(re.findall(r'<(?:del|ins) ', re_in_data))
                change_find_end = len(re.findall(r'<\/(?:del|ins)>', re_in_data))

                change_count += (change_find_start - change_find_end)
                if change_count != 0 or change_find_start != 0 or change_find_end != 0:
                    end_data += str(i) + ' : ' + re_in_data
                
                i += 1
                
            result = '<pre>' + end_data + '</pre>'

        return easy_minify(flask.render_template(skin_check(),
            imp = [name, wiki_set(), wiki_custom(), wiki_css(['(' + load_lang('compare') + ')', 0])],
            data = result,
            menu = [['history/' + url_pas(name), load_lang('return')]]
        ))
    else:
        return redirect('/history/' + url_pas(name))