def newsletter_subscribe()

in bedrock/newsletter/views.py [0:0]

• 58 lines of code
• 18 McCabe index (conditional complexity)

def newsletter_subscribe(request):
    if request.method == "POST":
        newsletters = request.POST.getlist("newsletters")
        form = NewsletterFooterForm(newsletters, l10n_utils.get_locale(request), request.POST)
        errors = []
        if form.is_valid():
            data = form.cleaned_data

            kwargs = {}
            # add optional data
            kwargs.update(
                {
                    k: data[k]
                    for k in [
                        "country",
                        "lang",
                        "source_url",
                        "first_name",
                        "last_name",
                    ]
                    if data[k]
                }
            )

            # NOTE this is not a typo; Referrer is misspelled in the HTTP spec
            # https://www.w3.org/Protocols/rfc2616/rfc2616-sec14.html#sec14.36
            if not kwargs.get("source_url") and request.headers.get("Referer"):
                kwargs["source_url"] = request.headers["Referer"]

            # Convert data["newsletters"] to a comma separated string.
            newsletters = data["newsletters"]
            if isinstance(newsletters, list):
                newsletters = ",".join(newsletters)

            try:
                basket.subscribe(data["email"], newsletters, **kwargs)
            except basket.BasketException as e:
                if e.code == basket.errors.BASKET_INVALID_EMAIL:
                    errors.append(str(invalid_email_address))
                else:
                    log.exception(f"Error subscribing {data['email']} to newsletter(s) {newsletters}")
                    errors.append(str(general_error))

        else:
            if "email" in form.errors:
                errors.append(ftl("newsletter-form-please-enter-a-valid"))
            if "privacy" in form.errors:
                errors.append(ftl("newsletter-form-you-must-agree-to"))
            for fieldname in ("newsletters", "lang", "country"):
                if fieldname in form.errors:
                    errors.extend(form.errors[fieldname])

        # form error messages may contain unsanitized user input
        errors = [escape(e) for e in errors]

        if request.headers.get("x-requested-with") == "XMLHttpRequest":
            # return JSON
            if errors:
                resp = {
                    "success": False,
                    "errors": errors,
                }
            else:
                resp = {"success": True}

            return JsonResponse(resp)
        else:
            ctx = {"newsletter_form": form}
            if not errors:
                ctx["success"] = True

            return l10n_utils.render(request, "newsletter/index.html", ctx, ftl_files=FTL_FILES)

    return l10n_utils.render(request, "newsletter/index.html", ftl_files=FTL_FILES)