admin.py 文件源码

def logs(request: HttpRequest, tool: str = "all") -> HttpResponse:
    """Logs listing."""

    if not request.user.is_staff:
        return render_error(request, "You need to be an admin to see logs.")

    log_lines: typing.List[str] = []

    if tool == "all" or tool == "webcrawler":

        f = open(MAIN_LOGGER, 'rt', encoding='utf8')
        log_lines = f.read().split('[0m\n')
        f.close()
        log_lines.pop()
        log_lines.reverse()

    log_filter = request.GET.get('filter', '')
    if log_filter:
        log_lines = [x for x in log_lines if log_filter.lower() in x.lower()]

    current_base_uri = re.escape('{scheme}://{host}'.format(scheme=request.scheme, host=request.get_host()))
    # Build complete URL for relative internal URLs (some)
    if crawler_settings.urls.viewer_main_url:
        patterns = [
            r'(?!' + current_base_uri + r')/' + crawler_settings.urls.viewer_main_url + r"archive/\d+/?",
            r'(?!' + current_base_uri + r')/' + crawler_settings.urls.viewer_main_url + r"gallery/\d+/?",
            r'(?!' + current_base_uri + r')/' + crawler_settings.urls.viewer_main_url + r"wanted-gallery/\d+/?",
        ]
    else:
        patterns = [
            r'(?<!' + current_base_uri + r')/archive/\d+/?',
            r'(?<!' + current_base_uri + r')/gallery/\d+/?',
            r'(?<!' + current_base_uri + r')/wanted-gallery/\d+/?',
        ]

    def build_request(match_obj: typing.Match) -> str:
        return request.build_absolute_uri(match_obj.group(0))

    log_lines = [reduce(lambda v, pattern: re.sub(pattern, build_request, v), patterns, line) for line in log_lines]

    paginator = Paginator(log_lines, 100)
    try:
        page = int(request.GET.get("page", '1'))
    except ValueError:
        page = 1

    try:
        log_lines = paginator.page(page)
    except (InvalidPage, EmptyPage):
        log_lines = paginator.page(paginator.num_pages)

    d = {'log_lines': log_lines}
    return render(request, "viewer/logs.html", d)